CN219918660U - Rotor assembly lower jacking device and motor rotor assembly box-entering auxiliary assembly equipment - Google Patents

Abstract

The utility model relates to a rotor assembly lower jacking device and a motor rotor assembly box-in auxiliary assembly device, wherein the rotor assembly lower jacking device is used for the motor rotor assembly box-in auxiliary assembly device, one end of the bottom of a rotor assembly extends into a high-speed shaft and is meshed with the high-speed shaft, the rotor assembly lower jacking device comprises a lower supporting ejector rod, the lower supporting ejector rod is used for jacking a rotor assembly and carrying the rotor assembly, and the lower supporting ejector rod comprises: a first rod body; the second rod body is arranged in the first rod body in a sliding manner along the vertical direction and is used for being abutted with one end of the bottom of the rotor assembly; and the elastic piece is arranged between the first rod body and the second rod body. According to the utility model, the lower supporting ejector rod is elastically arranged, so that the rotor assembly can be buffered when the lower supporting ejector rod is used for bearing the rotor assembly, the impact of the rotor assembly on the lower supporting ejector rod is reduced, and further the damage of the rotor assembly and the lower supporting ejector rod due to the impact can be avoided.

Description

Rotor assembly lower jacking device and motor rotor assembly box-entering auxiliary assembly equipment

Technical Field

The utility model relates to the technical field of motor assembly, in particular to a rotor assembly lower jacking device and auxiliary motor rotor assembly box-in assembly equipment.

Background

When the existing motor is assembled, the stator total components of the motor can be assembled in the motor shell, and then the rotor assembly of the motor is assembled in the stator assembly, so that the rotor assembly is put into a box. When the rotor assembly stretches into the rotor assembly, the rotor assembly is easy to deviate due to the magnetic force between the rotor assembly and the stator assembly, and the stator assembly is easy to scratch when the rotor assembly deviates, so that the rotor assembly and the stator assembly are damaged. To avoid this problem, the prior art generally employs a "top down" approach to guiding the rotor assembly, wherein the "bottom down" approach may be accomplished by a bottom support rod that moves up and down in a vertical direction and is adapted to abut against one end of the bottom of the rotor assembly.

The existing motor can be integrated with the gearbox, the motor shell of the motor can be integrally formed with the upper shell of the gearbox to form a power assembly shell, and the motor end cover of the motor and the lower shell of the gearbox are respectively arranged at one end of the top and one end of the bottom of the power assembly shell. During the assembly process, the stator assembly of the motor can be assembled into the power assembly shell, then the shafting of the gearbox is assembled into the lower shell, and then the power assembly shell and the lower shell are combined; wherein the shafting of the gearbox comprises a high-speed shaft. Subsequently, the rotor assembly and the motor end cover of the motor are assembled. One end of the bottom of the rotor assembly can extend into the high-speed shaft and be meshed with the high-speed shaft so as to realize the transmission of the rotor assembly and the high-speed shaft.

When the rotor assembly is assembled, the lower support rod passes through the high-speed shaft to perform 'downward jacking' on the rotor assembly, and then the rotor assembly is guided to synchronously move downwards along the vertical direction. When the top end of the rotor assembly extends into the high-speed shaft, the rotor assembly is abutted against the high-speed shaft because the rotor assembly is difficult to engage with the high-speed shaft. The bottom end of the rotor assembly is then engaged with the high speed shaft by rotating the high speed shaft and the bottom end of the rotor assembly can be further advanced into the high speed shaft. Before one end of the bottom of the rotor assembly is meshed with the high-speed shaft, the lower supporting ejector rod can move downwards for a designated distance along the vertical direction, so that the rotor assembly can move continuously. When the rotor assembly continues to move, one end of the bottom of the rotor assembly can fall on the lower supporting ejector rod so as to be supported by the lower supporting ejector rod, and further the spline structure for meshing is prevented from being damaged due to impact force.

However, when the lower supporting rod receives the rotor assembly, the rotor assembly impacts the lower supporting rod, and the rotor assembly is also subjected to a reaction force exerted by the lower supporting rod, so that the lower supporting rod or the rotor assembly is easily damaged.

Disclosure of Invention

Based on the above, the utility model provides a rotor assembly lower jacking device and a motor rotor assembly box-in auxiliary assembly device, so as to solve the problem that a lower supporting ejector rod or a rotor assembly is easy to damage when the rotor assembly is meshed with a high-speed shaft in the prior art.

In a first aspect, the present utility model provides a rotor assembly lower jacking device for an electric motor rotor assembly in-box auxiliary assembling apparatus for assembling the rotor assembly of an electric motor into a stator assembly of the electric motor, the electric motor being integrally provided with a gearbox including a high speed shaft into which a bottom end of the rotor assembly extends and meshes, the rotor assembly lower jacking device including a lower bracing rod slidably provided in a vertical direction for jacking the rotor assembly through the high speed shaft when the rotor assembly is assembled, and for continuing to move downward in a vertical direction by a specified distance to receive the rotor assembly when the rotor assembly is abutted with the high speed shaft, the lower bracing rod comprising:

a first rod body;

the second rod body is arranged in the first rod body in a sliding manner along the vertical direction and is used for being abutted with one end of the bottom of the rotor assembly; and

and the elastic piece is arranged between the first rod body and the second rod body.

In one embodiment, a first counter bore is formed in one end of the top of the first rod body, the second rod body is slidably disposed in the first counter bore, a second counter bore is formed in one end of the bottom of the second rod body, the first counter bore is disposed opposite to the second counter bore, and the elastic element is disposed between one side of the bottom of the first counter bore and one side of the top of the second counter bore.

In one embodiment, the lower supporting rod further comprises a connecting piece, the connecting piece penetrates through the second rod body to be in threaded connection with one end of the top of the first rod body, the second rod body is slidably arranged on the connecting piece, and the elastic piece is sleeved outside the connecting piece.

In one embodiment, a third counter bore is formed in one end of the top of the second rod body, the connecting piece comprises a limiting head portion and a connecting rod portion, the limiting head portion is embedded in the third counter bore and is arranged at intervals with one end of the top of the second rod body, and the connecting rod portion penetrates through the second rod body to be in threaded connection with the first rod body.

In one embodiment, a latch member is disposed at one end of the top of the second rod body, and is configured to be in plug-in fit with one end of the bottom of the rotor assembly.

In one embodiment, a guide part is arranged at one end of the top of the bolt piece, extends upwards in the vertical direction and is tapered when extending.

In one embodiment, the rotor assembly lower jacking device further comprises a lower jacking servo motor, a lower jackscrew assembly and a lower jacking fixed disc, the lower jacking servo motor is in transmission with the lower jackscrew assembly, the lower jacking fixed disc is connected with the lower jackscrew assembly, the lower jackscrew assembly drives the lower jacking fixed disc to move in the vertical direction, and the lower jacking rod is fixed on the lower jacking fixed disc.

In one embodiment, the lower jack screw assembly comprises a lower jack sliding nut and a lower jack rotating screw, wherein the lower jack rotating screw is arranged in the vertical direction and is in transmission with the lower jack servo motor, and the lower jack sliding nut is in threaded connection with the lower jack rotating screw and is connected with the lower jack fixing disc.

In one embodiment, the rotor assembly lower top device further comprises a belt pulley assembly, the lower top screw assembly is in transmission with the lower top servo motor through the belt pulley assembly, the belt pulley assembly comprises a driving belt pulley, a driven belt pulley and a transmission belt, the driving belt pulley is connected with the lower top servo motor, the lower top servo motor drives the driving belt pulley to rotate, the driven belt pulley is connected with the lower top rotating screw rod, and the transmission belt is arranged between the driving belt pulley and the driven belt pulley.

In a second aspect, the utility model provides a motor rotor assembly in-box auxiliary assembly device, which comprises any one of the rotor assembly lower jacking device provided by the utility model and is used for assembling a rotor assembly of a motor into a stator assembly of the motor, the motor is integrated with a gearbox, the gearbox comprises a high-speed shaft, one end of the bottom of the rotor assembly extends into the high-speed shaft and is meshed with the high-speed shaft, and the rotor assembly lower jacking device is used for jacking the rotor assembly when the rotor assembly is assembled and is used for continuously moving downwards for a specified distance along the vertical direction when the rotor assembly is abutted with the high-speed shaft so as to carry out bearing on the rotor assembly.

According to the utility model, when the rotor assembly is abutted against the high-speed shaft, the lower supporting ejector rod which performs 'downward jacking' on the rotor assembly is downwards moved for a specified distance, so that the rotor assembly can be accepted through the lower supporting ejector rod when the rotor assembly is meshed with the high-speed shaft; meanwhile, the lower supporting ejector rod is elastically arranged, so that the rotor assembly can be buffered when the lower supporting ejector rod is used for bearing the rotor assembly, the impact of the rotor assembly on the lower supporting ejector rod is reduced, and further the damage of the rotor assembly and the lower supporting ejector rod due to the impact can be avoided.

Drawings

FIG. 1 is a schematic diagram of a rotor assembly lower-roof apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a rotor assembly jacking device according to a first embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a rotor assembly according to a first embodiment of the present utility model when the rotor assembly is received by a lower top device of the rotor assembly;

fig. 4 is an enlarged view of a portion a in fig. 3.

Reference numerals: 100. a lower supporting ejector rod; 110. a first rod body; 111. a first counterbore; 120. a second rod body; 121. a second counterbore; 122. a third counterbore; 123. a latch member; 124. bearing platform; 125. a guide part; 130. an elastic member; 140. a connecting piece; 141. a spacing head; 142. a connecting rod portion; 200. a lower top servo motor; 300. a lower jack screw assembly; 310. a lower top slip nut; 320. the lower top rotates a screw rod; 400. a lower top fixing plate; 500. a pulley assembly; 510. a driving pulley; 520. a driven pulley; 530. a drive belt; 600. a rotor assembly; 610. a bolt hole; 611. a guide hole; 700. a high speed shaft.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It should be noted that the illustrations provided in the present embodiment are merely schematic illustrations of the basic idea of the present utility model.

The structures, proportions, sizes, etc. shown in the drawings attached hereto are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are particularly adapted to the specific details of construction and the use of the utility model, without departing from the spirit or essential characteristics thereof, which fall within the scope of the utility model as defined by the appended claims.

References in this specification to orientations or positional relationships as "upper", "lower", "left", "right", "intermediate", "longitudinal", "transverse", "horizontal", "inner", "outer", "radial", "circumferential", etc., are based on the orientation or positional relationships shown in the drawings, are also for convenience of description only, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example 1

An embodiment of the present utility model provides a rotor assembly lower-jacking device, as shown in fig. 1 to 4, for an in-box auxiliary assembly device of a motor rotor assembly, for assembling the rotor assembly 600 of the motor into a stator assembly of the motor, the motor being integrally disposed with a gearbox, the gearbox including a high-speed shaft 700, a bottom end of the rotor assembly 600 extending into the high-speed shaft 700 and engaging with the high-speed shaft 700, the rotor assembly lower-jacking device including a lower-bracing-rod 100 slidably disposed in a vertical direction, the lower-bracing-rod 100 being for jacking the rotor assembly 600 through the high-speed shaft 700 when the rotor assembly 600 is assembled, and for continuing to move downward in the vertical direction by a specified distance when the rotor assembly 600 abuts against the high-speed shaft 700, for receiving the rotor assembly 600, the lower-bracing-rod 100 including:

a first rod body 110;

a second rod body 120 slidably disposed in the first rod body 110 in a vertical direction and adapted to abut against one end of the bottom of the rotor assembly 600; and

and an elastic member 130 disposed between the first rod body 110 and the second rod body 120.

As shown in fig. 1 and 2, in the present embodiment, it is exemplarily explained that when the motor is integrally provided with the transmission, the motor housing of the motor is integrally formed with the upper housing of the transmission, and constitutes the powertrain housing. The motor end cover of the motor and the lower shell of the gearbox are respectively arranged on the top side and the bottom side of the power assembly shell. In the assembly process of the motor, the stator assembly of the motor can be assembled in the power assembly shell, meanwhile, the shafting of the gearbox is assembled in the lower shell, then the power assembly shell and the lower shell are assembled, and then the rotor assembly 600 and the motor end cover are assembled. Wherein the shafting of the gearbox comprises a high-speed shaft 700. When the rotor assembly 600 is assembled, the motor to be assembled with the rotor assembly 600 can be fed to the middle part of the auxiliary assembling device for the motor rotor assembly in-box, and the rotor assembly 600 can be fed to one end of the top of the auxiliary assembling device for the motor rotor assembly in-box, and the rotor assembly 600 can enter the stator assembly in an 'up-down-top' mode to complete in-box of the rotor assembly 600.

During assembly of the rotor assembly 600, the lower support ram 100 may move vertically upward through the high speed shaft 700 to abut against one end of the bottom of the rotor assembly 600 to "lower" the rotor assembly 600, and then the lower support ram 100 cooperates with the "upper" rotor assembly 600 pressing device and moves vertically downward to guide the rotor assembly 600 to move vertically downward synchronously to thereby assemble the rotor assembly 600 into the rotor assembly 600.

As shown in fig. 2 and 3, when one end of the bottom of the rotor assembly 600 is protruded into the high speed shaft 700, the rotor assembly 600 may be abutted against the high speed shaft 700 because it is difficult to precisely align the spline structure for engagement of the rotor assembly 600 with the high speed shaft 700. The bottom end of the rotor assembly 600 may then be engaged with the high speed shaft 700 by rotating the high speed shaft 700, and the bottom end of the rotor assembly 600 may be allowed to continue moving downward in a vertical direction to further enter the high speed shaft 700.

The lower stay bar 100 may be moved downward in the vertical direction by a designated distance before the bottom end of the rotor assembly 600 is engaged with the high speed shaft 700. The designated distance is determined by the distance that the bottom end of the rotor assembly 600 continues to move downward in the vertical direction when engaged with the high speed shaft 700. The specified distance should be less than the distance that the bottom end of the rotor assembly 600 continues to move when engaged with the high speed shaft 700 so that the bottom end of the rotor assembly 600 can drop onto the lower support ram 100 after further entering the high speed shaft 700 and the lower support ram 100 can receive the rotor assembly 600.

As shown in fig. 1 and 4, in the present embodiment, the lower stay bar 100 is elastically provided. The first rod 110 and the second rod 120 may be coaxially disposed, the second rod 120 is slidably disposed in the first rod 110 along a vertical direction and is used to abut against one end of the bottom of the rotor assembly 600, and the elastic member 130 is disposed between the first rod 110 and the second rod 120. The elastic member 130 may employ a spring, which is compressively deformed when being forced.

When the lower stay bar 100 moves downward in the vertical direction by a designated distance and the rotor assembly 600 falls on the lower stay bar 100, one end of the bottom of the rotor assembly 600 may be abutted against the second rod body 120 and apply a downward force to the second rod body 120, the second rod body 120 may move downward in the vertical direction under the action of the downward force and the gravity of the rotor assembly 600 and compress the elastic member 130, and the elastic member 130 may apply a corresponding reaction force to the second rod body 120 in the process of being compressed, which may be transmitted to the rotor assembly 600 to buffer and dampen the rotor assembly 600 in the process of further moving the rotor assembly 600, while reducing the impact of the rotor assembly 600 on the lower stay bar 100 and the high speed shaft 700.

It can be appreciated that, in the present utility model, when the rotor assembly 600 is abutted against the high-speed shaft 700, the lower supporting rod 100 for "pushing down" the rotor assembly 600 is moved downward by a specified distance, so that the rotor assembly 600 can be received by the lower supporting rod 100 when the rotor assembly 600 is engaged with the high-speed shaft 700; meanwhile, the lower supporting ejector rod 100 is elastically arranged, so that the rotor assembly 600 can be buffered when the lower supporting ejector rod 100 supports the rotor assembly 600, the impact of the rotor assembly 600 on the lower supporting ejector rod 100 is reduced, and further the damage of the rotor assembly 600 and the lower supporting ejector rod 100 due to the impact can be avoided.

It will be further appreciated that the elastically disposed lower support rod 100 may further reduce vibration generated when the bottom end of the rotor assembly 600 further enters the high-speed shaft 700, so as to reduce impact of the lower support rod 100 on the high-speed shaft 700, and further prevent damage to the spline structure of the bottom end of the rotor assembly 600 and the high-speed shaft 700 for engagement due to impact.

Specifically, a first counterbore 111 is disposed at one end of the top of the first rod 110, a second rod 120 is slidably disposed in the first counterbore 111, a second counterbore 121 is disposed at one end of the bottom, the first counterbore 111 is disposed opposite to the second counterbore 121, and an elastic member 130 is disposed between a bottom side of the first counterbore 111 and a top side of the second counterbore 121.

As shown in fig. 4, in the present embodiment, it is exemplarily illustrated that the second rod 120 may be slidably disposed at a top end of the first rod 110. The top end of the first rod body 110 may be provided with a first counterbore 111 into which the second rod body 120 extends, the first rod body 110 may be provided in a shape of a revolution, the first counterbore 111 may be provided as a circular hole, and may be coaxially provided with the first rod body 110. One end of the bottom of the second rod 120 extends into the first counterbore 111 and is slidably disposed. The second counterbore 121 is disposed at one end of the bottom of the second rod 120 and is disposed coaxially with the second rod 120, the second rod 120 may be disposed as a solid of revolution, and the second counterbore 121 is disposed as a circular hole. The second counterbore 121 has an inner diameter smaller than that of the first counterbore 111, and the second counterbore 121 is disposed opposite the first counterbore 111. The elastic member 130 is disposed in the first counterbore 111 and the second counterbore 121, and two ends thereof are respectively abutted against the bottom side of the first counterbore 111 and the top side of the second counterbore 121, that is, the bottom walls of the first counterbore 111 and the second counterbore 121.

It can be appreciated that, in this embodiment, by providing the first counterbore 111 on the first rod 110, providing the second counterbore 121 on the second rod 120, and providing the first counterbore 111 and the second counterbore 121 opposite to each other, and simultaneously providing the elastic member 130 in the first counterbore 111 and the second counterbore 121, when the second rod 120 moves downward in the vertical direction under the pressing force of the rotor assembly 600, the elastic member 130 can be compressively deformed in the first counterbore 111 and the second counterbore 121 to stably apply a reaction force to the second rod 120, thereby effectively buffering and receiving the same.

Specifically, the lower ejector pin 100 further includes a connecting member 140, the connecting member 140 passes through the second rod 120 to be in threaded connection with one end of the top of the first rod 110, the second rod 120 is slidably disposed on the connecting member 140, and the elastic member 130 is sleeved outside the connecting member 140.

As shown in fig. 4, in the present embodiment, it is exemplarily illustrated that the connection member 140 may be coaxially disposed with the first rod body 110 and the second rod body 120 and be screw-coupled with the first rod body 110 through the second rod body 120 in the axial direction. The connection mode of the threaded connection can be used for easily disassembling and assembling the lower supporting ejector rod 100, so that the operation is convenient and the operation is more convenient. The second rod 120 is slidably disposed on the connecting member 140 along the vertical direction, one end of the top of the connecting member 140 can limit the second rod 120 when it moves upward along the vertical direction, and the elastic member 130 is further sleeved outside the connecting member 140 when disposed in the first counterbore 111 and the second counterbore 121.

As can be appreciated, when the lower stay bar 100 is separated from the bottom end of the rotor assembly 600, the elastic member 130 restores its shape and applies a pushing force upward in the vertical direction to the second rod 120 to restore the second rod 120; in this embodiment, the connecting piece 140 is provided, and the second rod 120 is connected with the first rod 110 through the connecting piece 140, so that the second rod 120 can be prevented from falling out of the first rod 110 when moving upwards along the vertical direction, and further the structural stability of the lower supporting rod 100 can be ensured.

More specifically, a third counterbore 122 is disposed at one end of the top of the second rod 120, the connecting member 140 includes a limiting head 141 and a connecting rod 142, the limiting head 141 is embedded in the third counterbore 122 and is spaced from the top end of the second rod 120, and the connecting rod 142 passes through the second rod 120 to be screwed with the first rod 110.

In this embodiment, the third counterbore 122 may also be disposed coaxially with the second rod 120 and open at the top end of the second rod 120. The connection member 140 may be provided as a bolt member, the limit head portion 141 thereof may be a head portion of the bolt member, and the connection rod portion 142 thereof may be a rod portion of the bolt member. The connecting rod portion 142 may extend from the third counterbore 122 into the second rod body 120 and vertically downwardly through the second counterbore 121 for threaded connection with the first rod body 110. The connecting head is disposed in the third counterbore 122, and can be abutted against one side of the bottom of the third counterbore 122, and is disposed at a distance from one end of the top of the second rod 120. The distance between the third counterbore 122 and the top end of the second rod 120 is greater than the distance between the second rod 120 and the top end of the second rod 120 when the second rod 120 moves downward in the vertical direction, i.e. the length of the elastic member 130 that can deform when the second rod 120 compresses the elastic member 130.

It can be appreciated that, in this embodiment, by disposing the third counterbore 122 at the top end of the second rod 120, and disposing the limiting head 141 of the connecting member 140 in the third counterbore 122 and keeping a gap with the top end of the second rod 120, when the second rod 120 moves downward on the connecting member 140 along the vertical direction, the interference caused by the movement of the connecting member 140 to the second rod 120 can be avoided, so that the lower supporting rod 100 can stably and effectively play a role in damping and buffering the rotor assembly 600.

Specifically, a latch member 123 is disposed at a top end of the second rod 120, and the latch member 123 is configured to be in plug-in fit with a bottom end of the rotor assembly 600.

In this embodiment, illustratively, the latch member 123 may be integrally formed with the second rod 120, and the third counterbore 122 extends in a vertical direction and penetrates the latch member 123 such that the latch member 123 has a circular tube shape. The bottom end of the latch member 123 may be further provided with a cap 124, and the cap 124 may be formed by a protrusion of an outer sidewall of the latch member 123 in a direction away from an axis of the latch member 123. Correspondingly, the bottom end of the rotor assembly 600 may be provided with a latch hole 610, and the latch hole 610 is used for inserting the latch member 123, so that the latch member 123 may be in plug-in fit with the bottom end of the rotor assembly 600.

It can be appreciated that, in this embodiment, by providing the latch member 123 at the top end of the second rod 120 to be in plug-in fit with the bottom end of the rotor assembly 600, when the bottom end of the rotor assembly 600 abuts against the second rod 120, the rotor assembly 600 and the second rod 120 can be firmly connected, so that a better guiding effect is formed when the lower supporting rod 100 "pushes down" the rotor assembly 600. Meanwhile, when the rotor assembly 600 falls onto the lower supporting rod 100, the pin member 123 can also prevent the rotor assembly 600 from being offset and swaying, so as to improve the damping and buffering effects of the lower supporting rod 100 on the rotor assembly 600.

More specifically, the top end of the latch member 123 is provided with a guide portion 125, and the guide portion 125 extends upward in the vertical direction and tapers when extending.

As shown in fig. 4, in the present embodiment, it is exemplarily illustrated that the guide portion 125 may be integrally formed with the latch member 123, which extends upward in the vertical direction, and is tapered when extending, that is, the guide portion 125 gradually decreases in its outer diameter when extending upward in the vertical direction. The guide 125 may be formed by chamfering the outer edge of the top end of the latch member 123 during processing. Correspondingly, the entrance of the latch hole 610 at one end of the bottom of the rotor assembly 600 may be further provided with a guide hole 611, and the guide hole 611 may be formed by chamfering the entrance of the latch hole 610, which is gradually increased in inner diameter when extending upward in the vertical direction.

It can be appreciated that, in this embodiment, by providing the guide portion 125 at the top end of the latch member 123, when the latch member 123 is in plug-in engagement with the bottom end of the rotor assembly 600, if the bottom end of the rotor assembly 600 cannot be kept coaxial with the second rod 120, the guide portion 125 can correct the bottom end of the rotor assembly 600 and guide the movement thereof, and particularly, when the guide portion 125 is matched with the side wall of the guide hole 611, the correction and guiding effects are better, so as to ensure that the latch member 123 accurately extends into the bottom end of the rotor assembly 600.

Specifically, the rotor assembly lower top device further comprises a lower top servo motor 200, a lower top screw assembly 300 and a lower top fixing disc 400, wherein the lower top servo motor 200 is in transmission with the lower top screw assembly 300, the lower top fixing disc 400 is connected with the lower top screw assembly 300, the lower top screw assembly 300 drives the lower top fixing disc 400 to move along the vertical direction, and the lower supporting ejector rod 100 is fixed on the lower top fixing disc 400.

As shown in fig. 1, in the present embodiment, it is exemplarily illustrated that the motor rotor assembly in-box auxiliary assembling apparatus may further include a frame, and the lower-top servo motor 200 may be fixed to the frame, and an output end thereof may extend upward in a vertical direction. The lower jack screw assembly 300 may be in transmission with the output of the lower jack servo motor 200, which may drive the lower jack screw assembly 300 when the output of the lower jack servo motor 200 rotates. The lower top fixing plate 400 is connected to the lower screw assembly 300, and the lower screw assembly 300 can also drive the lower top fixing plate 400 to move in the vertical direction when being driven. One end of the bottom of the first rod body 110 may be fixed to a top side of the lower top fixing plate 400. When the lower top fixing plate 400 moves, the lower supporting rod 100 can be driven to move up and down synchronously in the vertical direction.

It can be appreciated that, in this embodiment, by providing the lower top servo motor 200, the lower top screw assembly 300 and the lower top fixing plate 400, the lower top screw assembly 300 may be driven by the lower top servo motor 200, the lower top fixing plate 400 may be driven by the lower top screw assembly 300, and the lower top fixing plate 400 may drive the lower supporting rod 100 to move synchronously, so that the lower supporting rod 100 moves up and down along the vertical direction, so that the lower supporting rod 100 may perform "top down" and bearing on the rotor assembly 600.

More specifically, the lower jack screw assembly 300 includes a lower jack sliding nut 310 and a lower jack rotating screw 320, the lower jack rotating screw 320 being disposed in a vertical direction and being driven with the lower jack servo motor 200, the lower jack sliding nut 310 being screw-coupled with the lower jack rotating screw 320 and being coupled with the lower jack fixing plate 400.

As shown in fig. 1, in the present embodiment, it is exemplarily illustrated that the lower top rotating screw 320 may be disposed in a vertical direction and disposed side by side at one side of an output end of the lower top servo motor 200. The lower top rotating screw 320 is driven with the output end of the lower top servo motor 200, and when the output end of the lower top servo motor 200 rotates, it can drive the lower top rotating screw 320 to rotate synchronously. The lower top sliding nut 310 is in threaded connection with the lower top rotating screw 320, and when the lower top rotating screw 320 rotates, the lower top sliding nut 310 moves in the axial direction of the lower top rotating screw 320, that is, moves up and down in the vertical direction. The lower top fixing plate 400 is connected with the lower top sliding nut 310, and the lower top sliding nut 310 can drive the lower top fixing plate 400 to move up and down synchronously along the vertical direction when moving.

It can be appreciated that, in this embodiment, by providing the lower top rotating screw 320 and the lower top sliding nut 310, and driving the lower top rotating screw 320 to rotate by the lower top servo motor 200, so as to drive the lower top sliding nut 310 to move up and down in the vertical direction, the lower top sliding nut 310 drives the lower top fixing disc 400 to move synchronously when moving, so that the lower supporting rod 100 can move up and down in the vertical direction.

More specifically, the rotor assembly lower jacking device further includes a pulley assembly 500, the lower jacking screw assembly 300 is driven with the lower jacking servomotor 200 through the pulley assembly 500, the pulley assembly 500 includes a driving pulley 510, a driven pulley 520, and a driving belt 530, the driving pulley 510 is connected with the lower jacking servomotor 200, the lower jacking servomotor 200 drives the driving pulley 510 to rotate, the driven pulley 520 is connected with the lower jacking rotating screw 320, and the driving belt 530 is disposed between the driving pulley 510 and the driven pulley 520.

In the present embodiment, a pulley assembly 500 is illustratively shown for driving the lower top servomotor 200 with the lower jackscrew assembly 300. Wherein the drive pulley 510 of the pulley assembly 500 may be coaxially sleeved over the output end of the lower top servomotor 200 such that the output end of the lower top servomotor 200 may drive the drive pulley 510 to rotate. And the driven pulley 520 may be coaxially sleeved on the top end of the lower top rotating screw 320 and maintained at the same height as the driving pulley 510. A driving belt 530 may be disposed between the driving pulley 510 and the driven pulley 520, and may drive the driven pulley 520 to synchronously drive by the driving belt 530 when the driving pulley 510 rotates.

In some embodiments, the output of the lower top servomotor 200 may also be driven by a gear assembly with the lower jackscrew assembly 300.

It will be appreciated that the present embodiment facilitates transmission of the lower top servomotor 200 to the lower top rotating screw 320 by providing the pulley assembly 500, so that the lower top servomotor 200 can drive the lower top rotating screw 320.

The implementation principle of the lower top device of the rotor assembly provided by the embodiment of the utility model is as follows:

when the stator assembly is assembled, the output end of the lower top servo motor 200 drives the driving pulley 510 to rotate, the driving pulley 510 drives the driven pulley 520 to synchronously rotate through the driving belt 530, the lower top rotating screw 320 is driven to synchronously rotate when the driven pulley 520 rotates, the lower top sliding nut 310 is driven to move upwards in the vertical direction when the lower top rotating screw 320 rotates, and the lower top sliding nut 310 drives the lower top fixing disc 400 and the lower supporting rod 100 arranged on the lower top fixing disc 400 to synchronously move when the lower top sliding nut 310 moves, so that the lower supporting rod 100 moves upwards in the vertical direction to be propped against one end of the bottom of the rotor assembly 600 through the high-speed shaft 700. At this time, the latch member 123 is inserted into the latch hole 610, and the guide portion 125 is engaged with the guide hole 611 during the insertion process, so that the latch member 123 is accurately inserted into engagement with the bottom end of the rotor assembly 600. The lower ejector pins 100 are then moved downward in the vertical direction and cooperate with the rotor assembly 600 up-pressing means to guide the rotor assembly 600. When the rotor assembly 600 is abutted against the high-speed shaft 700, the lower stay bar 100 continues to move downward in the vertical direction by a designated distance, and then the high-speed shaft 700 is rotated to engage the high-speed shaft 700 with the bottom end of the rotor assembly 600. The rotor assembly 600 moves downward in a vertical direction further into the high speed shaft 700 and falls down onto the lower support ram 100. At this time, the second rod 120 moves downward in the vertical direction under the force of the rotor assembly 600 to compress the elastic member 130, the elastic member 130 is compressed to deform and apply a reaction force to the second rod 120, and the reaction force is transferred to the rotor assembly 600 to buffer and damp the rotor assembly 600.

When the rotor assembly 600 is abutted with the high-speed shaft 700, the lower supporting ejector rod 100 for carrying out 'downward jacking' on the rotor assembly 600 moves downwards by a specified distance in the vertical direction, so that the rotor assembly 600 can be accepted through the lower supporting ejector rod 100 when the rotor assembly 600 is meshed with the high-speed shaft 700; meanwhile, the lower supporting ejector rod 100 is elastically arranged, so that the rotor assembly 600 can be buffered when the lower supporting ejector rod 100 supports the rotor assembly 600, the impact of the rotor assembly 600 on the lower supporting ejector rod 100 is reduced, and further the damage of the rotor assembly 600 and the lower supporting ejector rod 100 due to the impact can be avoided.

Example two

The second embodiment of the utility model provides auxiliary assembling equipment for the in-box of the motor rotor assembly, which comprises any rotor assembly lower jacking device provided by the utility model and is used for assembling the rotor assembly 600 of the motor into a stator assembly of the motor, the motor and a gearbox are integrally arranged, the gearbox comprises a high-speed shaft 700, one end of the bottom of the rotor assembly 600 stretches into the high-speed shaft 700 and is meshed with the high-speed shaft 700, and the rotor assembly lower jacking device is used for jacking the rotor assembly 600 when the rotor assembly 600 is assembled and is used for continuously moving downwards for a specified distance along the vertical direction when the rotor assembly 600 is abutted against the high-speed shaft 700 so as to carry out bearing on the rotor assembly 600.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A rotor assembly lower jacking device for an electric motor rotor assembly into-box auxiliary assembly apparatus for assembling a rotor assembly (600) of an electric motor into a stator assembly of the electric motor, the electric motor being integrally provided with a gearbox comprising a high speed shaft (700), a bottom end of the rotor assembly (600) extending into the high speed shaft (700) and engaging the high speed shaft (700), characterized in that the rotor assembly lower jacking device comprises a lower jacking rod (100) slidably provided in a vertical direction, the lower jacking rod (100) being for jacking the rotor assembly (600) through the high speed shaft (700) when the rotor assembly (600) is assembled, and for continuing to move downward in the vertical direction a specified distance when the rotor assembly (600) abuts the high speed shaft (700) for receiving the rotor assembly (600), the lower jacking rod (100) comprising:

a first rod body (110);

a second rod body (120) slidably disposed in the first rod body (110) in a vertical direction and for abutting against one end of the bottom of the rotor assembly (600); and

and an elastic member (130) disposed between the first rod body (110) and the second rod body (120).

2. The rotor assembly lower jacking device according to claim 1, wherein a first counter bore (111) is provided at a top end of the first rod body (110), the second rod body (120) is slidably provided in the first counter bore (111), and a second counter bore (121) is provided at a bottom end, the first counter bore (111) is provided opposite to the second counter bore (121), and the elastic member (130) is provided between a bottom side of the first counter bore (111) and a top side of the second counter bore (121).

3. The rotor assembly lower jacking device according to claim 1, wherein the lower jacking rod (100) further comprises a connecting piece (140), the connecting piece (140) penetrates through the second rod body (120) to be in threaded connection with one end of the top of the first rod body (110), the second rod body (120) is slidably arranged on the connecting piece (140), and the elastic piece (130) is sleeved outside the connecting piece (140).

4. A rotor assembly lower jacking device according to claim 3, wherein a third counter bore (122) is provided at one end of the top of the second rod body (120), the connecting piece (140) comprises a limiting head portion (141) and a connecting rod portion (142), the limiting head portion (141) is embedded in the third counter bore (122) and is spaced from one end of the top of the second rod body (120), and the connecting rod portion (142) passes through the second rod body (120) to be in threaded connection with the first rod body (110).

5. The rotor assembly lower roof device according to claim 1, wherein a latch member (123) is provided at a top end of the second rod body (120), and the latch member (123) is configured to be in plug-in fit with a bottom end of the rotor assembly (600).

6. The rotor assembly lower roof device according to claim 5, wherein a guide portion (125) is provided at a top end of the latch member (123), and the guide portion (125) extends upward in a vertical direction and is tapered when extending.

7. The rotor assembly lower jacking device according to claim 1, further comprising a lower jacking servo motor (200), a lower jacking rod assembly (300) and a lower jacking fixed disc (400), wherein the lower jacking servo motor (200) is in transmission with the lower jacking rod assembly (300), the lower jacking fixed disc (400) is connected with the lower jacking rod assembly (300), the lower jacking rod assembly (300) drives the lower jacking fixed disc (400) to move along the vertical direction, and the lower jacking rod (100) is fixed on the lower jacking fixed disc (400).

8. The rotor assembly lower jacking device as claimed in claim 7, wherein the lower jacking screw assembly (300) includes a lower jacking slide nut (310) and a lower jacking rotating screw (320), the lower jacking rotating screw (320) being disposed in a vertical direction and driven with the lower jacking servo motor (200), the lower jacking slide nut (310) being screw-coupled with the lower jacking rotating screw (320) and coupled with the lower jacking fixed disk (400).

9. The rotor assembly lower jacking device of claim 8, further comprising a pulley assembly (500), the lower jacking screw assembly (300) being driven by the lower jacking servo motor (200) through the pulley assembly (500), the pulley assembly (500) comprising a driving pulley (510), a driven pulley (520) and a driving belt (530), the driving pulley (510) being connected to the lower jacking servo motor (200), the lower jacking servo motor (200) driving the driving pulley (510) to rotate, the driven pulley (520) being connected to the lower jacking rotation screw (320), the driving belt (530) being disposed between the driving pulley (510) and the driven pulley (520).

10. A motor rotor assembly in-box auxiliary assembly device, characterized in that the motor rotor assembly in-box auxiliary assembly device comprises a rotor assembly lower jacking device according to any one of claims 1 to 9 and is used for assembling a rotor assembly (600) of a motor into a stator assembly of the motor, the motor is integrated with a gearbox, the gearbox comprises a high-speed shaft (700), one end of the bottom of the rotor assembly (600) stretches into the high-speed shaft (700) and is meshed with the high-speed shaft (700), and the rotor assembly lower jacking device is used for jacking the rotor assembly (600) when the rotor assembly (600) is assembled and is used for continuously moving downwards for a specified distance in the vertical direction when the rotor assembly (600) is abutted with the high-speed shaft (700) so as to carry out bearing on the rotor assembly (600).