CN113572310B

CN113572310B - Brush holder for rotating motor

Info

Publication number: CN113572310B
Application number: CN202110852813.3A
Authority: CN
Inventors: 徐建华; 任银祥; 叶煜彬; 管仲华; 陈彩娣
Original assignee: Shaoxing Shangyu Henghua Electric Co ltd
Current assignee: Shaoxing Shangyu Henghua Electric Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-03-01
Anticipated expiration: 2041-07-27
Also published as: CN113572310A

Abstract

The invention discloses an electric brush holder for a rotating motor, which comprises a support frame groove, wherein a conduction limiting plate is fixedly connected to the back of the top of the support frame groove, the front of the conduction limiting plate is sleeved and slidably connected with a containing bottom plate, the bottom of the containing bottom plate is arranged corresponding to the top of the support frame groove, an adjusting pressing mechanism is fixedly connected to the middle position of the bottom of the containing bottom plate, a pressing spring is fixedly connected to the middle position inside the support frame groove, resistance-increasing inner grooves are uniformly formed in the surface of the front of the conduction limiting plate, a protective clamping piece mechanism is fixedly connected to one side of the surface of the top of the containing bottom plate, and an installation adjusting mechanism is fixedly connected to the surface of the top of the containing bottom plate and is symmetrical to the protective clamping piece mechanism. This an electric brush frame for rotating electrical machines has reached the mobility that improves the air around the brush for the radiating efficiency of brush improves brush life.

Description

Brush holder for rotating motor

Technical Field

The invention relates to the technical field of motors, in particular to an electric brush holder for a rotating motor.

Background

Carbon brushes, also called brushes, are widely used as a sliding contact in many electrical devices. The carbon brush mainly comprises graphite, impregnated graphite and metal (copper and silver) graphite in product application. The carbon brush is a device for transmitting energy or signals between a fixed part and a rotating part of a motor or a generator or other rotating machinery, is generally made of pure carbon and a coagulant, is generally square in shape, is clamped on a metal support, is tightly pressed on a rotating shaft by a spring inside, and transmits electric energy to a coil through a phase changer when the motor rotates. The carbon should be periodically maintained and replaced and cleaned.

Traditional brush yoke can not pile up the surface at the effectual heat dissipation of brush, brush in the heat that the contact slip in-process produced for the loss of brush, the life of brush is low.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an electric brush holder for a rotating electric machine, which solves the problems that the traditional electric brush holder cannot effectively dissipate heat of an electric brush, heat generated by the electric brush in the contact sliding process is accumulated on the surface, the loss of the electric brush is accelerated, and the service life of the electric brush is short.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an electric brush holder for rotating electrical machines, includes the carriage groove, the back fixedly connected with conduction limiting plate at carriage groove top, the front cover of conduction limiting plate is established and sliding connection has the storage bottom plate, the bottom of storage bottom plate corresponds the setting with the top in carriage groove, the intermediate position fixedly connected with of storage bottom plate bottom adjusts pressing mechanism, the intermediate position fixedly connected with pressfitting spring of carriage inslot portion, the top of pressfitting spring and the bottom fixed connection who adjusts pressing mechanism, the surface of conduction limiting plate positive position evenly is provided with and is increasing the resistance inside groove, one side fixedly connected with protection clamping piece mechanism of storage bottom plate top surface, the position fixedly connected with installation adjustment mechanism who just is symmetrical with protection clamping piece mechanism of storage bottom plate top surface.

Preferably, the adjusting and pressing mechanism comprises an air groove pipe, an elastic extrusion bag is fixedly connected to a position, close to the upper part, of the inner wall of the air groove pipe, and a sealing turnover plate is arranged at the middle position inside the air groove pipe. Improve the mobility of the air around the brush for the radiating efficiency of brush improves brush life.

Preferably, a flow guide hole is formed in the middle of the top of the air slot tube, an expansion contact piece is fixedly connected to the position, close to the lower portion, of the inner wall of the air slot tube, and the interior of the expansion contact piece is communicated with the elastic extrusion bag. The stability of brush carrier is improved, the too big structure of extrusion force is avoided causing the skew.

Preferably, protection clamping piece mechanism includes location splint, location splint's bottom and storage bottom plate fixed connection, the even sliding connection of inboard surface of location splint has the protection flitch, two the one end rotation connection that location splint were kept away from to the protection flitch. Form the multiple spot contact to the brush, improve the extrusion frictional force of contact point position, unsettled position improves the radiating efficiency of brush simultaneously.

Preferably, the vertical position on protection flitch surface evenly is provided with the mediation heat dissipation ring, the equal fixedly connected with of vertical position at protection flitch surface both ends increases and hinders the gasket.

Preferably, the middle position inside the positioning clamp plate is provided with an inner gas storage groove, the bottom of the inner gas storage groove is correspondingly communicated with the flow guide holes, the front position of the inner gas storage groove is uniformly provided with directional exhaust holes, the end of each directional exhaust hole, which is positioned on the inner side of the positioning clamp plate, is fixedly connected with an extrusion dredging head, and the extrusion dredging head is correspondingly arranged with a dredging heat dissipation ring. The air is conducted directionally, and the air can be conducted on the surface of the electric brush only after the electric brush is installed, so that the integral air pressure support of the electric brush frame when the electric brush is not installed is ensured.

Preferably, the installation adjustment mechanism comprises an adjustment clamping plate, the position of the adjustment clamping plate close to the lower part is penetrated and is slidably connected with a movable insertion rod, and a contact base plate is fixedly connected to the left end of the movable insertion rod. The electric brush is directionally guided and installed, and the stability of electric brush installation is guaranteed.

Preferably, the top surface of the contact backing plate is rotatably connected with a movable carrier plate, a containing chute is uniformly arranged in the movable carrier plate, an elastic push block is slidably connected to the middle position in the containing chute, an extrusion contact is fixedly connected to the bottom end of the elastic push block, and resistance increasing clamping plates are fixedly connected to the two sides of the top end of the elastic push block. Further improve the stability after the brush installation, avoid the brush atress to drop.

(III) advantageous effects

The invention provides a brush holder for a rotating electrical machine. The method has the following beneficial effects:

(1) this an electric brush frame for rotating electrical machines, brush are in the installation, and the extrusion force will protect the flitch to the inner wall direction contact of locating splint, and until two protection flitches upset to the horizontality, increase and hinder the gasket upset and the brush contact this moment, increase and hinder the outer protection flitch surface of gasket and unsettled contact, form the multiple spot contact to the brush, improve the extrusion frictional force of contact point position, unsettled position improves the radiating efficiency of brush simultaneously.

(2) This an electric brush frame for rotating electrical machines, the pressfitting spring can be extruded to the shake that the brush during operation produced to sealed returning face plate top facing removal, thereby conduct the inside air of air slot to protection clamping piece mechanism from the water conservancy diversion hole, and spout to the brush surface from protection clamping piece mechanism, improve the mobility of air around the brush, accelerate the radiating efficiency of brush, improve brush life.

(3) This a brush yoke for rotating electrical machines, when sealed returning face plate rebound extrusion elasticity extrusion bag, the inside atmospheric pressure increase of elasticity extrusion bag and conduct atmospheric pressure to the inside inflation with it of inflation contact piece, the position of expanded inflation contact piece infiltration to the pressfitting spring to with the top of pressfitting spring stable, improve brush yoke's stability, avoid the too big structure of extrusion force to cause the skew.

(4) This an electric brush yoke for rotating electrical machines, the extrusion force of brush will dredge the cooling ring and dredge the head contact with the extrusion to will extrude and dredge the head and open, the inside air pressure boost of adjusting the conduction of pressing mechanism of receiving of gas storage inside groove this moment, thereby with the directional conduction of air, only can be to brush surface conduction air after the brush installation, the holistic atmospheric pressure of electric brush yoke when guaranteeing the brush not install supportability.

(5) This an electric brush holder for rotating electrical machines, the brush installation gradually down with the surface contact of activity support plate to remove the movable inserted bar to the right side gradually, until the inside cooperation of contact backing plate and adjusting clamp plate, the left side surface of movable support plate laminating adjusting clamp plate at this moment, with the brush extrusion centre gripping of protection clamping piece mechanism mating reaction, with the directional guide installation of brush, guarantee the stability of brush installation.

(6) This an electric brush frame for rotating electrical machines, when the activity support plate contacted with the regulation splint gradually, extrusion contact will increase and hinder the cardboard to outside propelling movement, and the rough surface that increases and hinders the cardboard increases with the brush surface contact and hinders, further improves the stability after the brush installation, avoids the brush atress to drop.

Drawings

FIG. 1 is a schematic structural view of an integral side of the present invention;

FIG. 2 is a schematic structural view of the overall front face of the present invention;

FIG. 3 is a schematic structural diagram of an adjusting and pressing mechanism according to the present invention;

FIG. 4 is a schematic structural view of the protective clip mechanism of the present invention;

FIG. 5 is a side cross-sectional view of the protective clip mechanism of the present invention;

FIG. 6 is a schematic view of the mounting adjustment mechanism of the present invention;

FIG. 7 is a schematic view of the structure of FIG. 6 at A according to the present invention.

In the figure: the device comprises a support frame groove 1, a conduction limiting plate 2, a storage bottom plate 3, an adjusting and pressing mechanism 4, an air groove pipe 41, an elastic extrusion bag 42, a sealing turnover plate 43, a flow guide hole 44, an expansion contact piece 45, a pressing spring 5, a resistance increasing inner groove 6, a protective clamping piece mechanism 7, a positioning clamping plate 71, a protective sticking plate 72, a dredging heat dissipation ring 73, a resistance increasing gasket 74, an air storage inner groove 75, a directional exhaust hole 76, an extrusion dredging head 77, an installation adjusting mechanism 8, an adjusting clamping plate 81, a movable insertion rod 82, a contact backing plate 83, a movable carrier plate 84, a storage sliding groove 85, an elastic push block 86, an extrusion contact 87 and a resistance increasing clamping plate 88.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 7, the present invention provides a technical solution: the utility model provides an electric brush holder for rotating electrical machines, including support groove 1, the back fixedly connected with conduction limiting plate 2 at 1 top in support groove, the front cover of conduction limiting plate 2 is established and sliding connection has storage bottom plate 3, storage bottom plate 3's bottom corresponds the setting with support groove 1's top, storage bottom plate 3's intermediate position fixedly connected with adjusts pressing mechanism 4 bottom, support groove 1 inside intermediate position fixedly connected with pressfitting spring 5, pressfitting spring 5's top and the bottom fixed connection who adjusts pressing mechanism 4, the surface of conduction limiting plate 2 front position evenly is provided with and is increasing resistance inside groove 6, storage bottom plate 3 top surface's one side fixedly connected with protection clamping piece mechanism 7, storage bottom plate 3 top surface just installs adjustment mechanism 8 with the position fixedly connected with of protection clamping piece mechanism 7 symmetry.

The adjusting and pressing mechanism 4 comprises an air groove tube 41, an elastic extrusion bag 42 is fixedly connected to the upper position of the inner wall of the air groove tube 41, and a sealing turnover plate 43 is arranged at the middle position inside the air groove tube 41. Improve the mobility of the air around the brush for the radiating efficiency of brush improves brush life.

A diversion hole 44 is arranged at the middle position of the top of the air groove pipe 41, an expansion contact piece 45 is fixedly connected to the position, close to the lower part, of the inner wall of the air groove pipe 41, and the interior of the expansion contact piece 45 is communicated with the elastic extrusion bag 42. The stability of brush carrier is improved, the too big structure of extrusion force is avoided causing the skew.

Protection clamping piece mechanism 7 includes location splint 71, and the bottom of location splint 71 with accomodate bottom plate 3 fixed connection, the even sliding connection of the inboard surface of location splint 71 has protection flitch 72, and the one end rotation that location splint 71 was kept away from to two protection flitches 72 is connected. Form the multiple spot contact to the brush, improve the extrusion frictional force of contact point position, unsettled position improves the radiating efficiency of brush simultaneously.

The vertical position on the surface of the protection flitch 72 is evenly provided with a dredging heat dissipation ring 73, and the vertical positions at the two ends of the surface of the protection flitch 72 are fixedly connected with resistance increasing gaskets 74.

An inner gas storage groove 75 is formed in the middle of the inside of the positioning clamp plate 71, the bottom of the inner gas storage groove 75 is correspondingly communicated with the flow guide holes 44, directional exhaust holes 76 are uniformly formed in the front position of the inner gas storage groove 75, the directional exhaust holes 76 are fixedly connected with an extrusion dredging head 77 located on the inner side of the positioning clamp plate 71, and the extrusion dredging head 77 is correspondingly arranged with the dredging heat dissipation ring 73. The air is conducted directionally, and the air can be conducted on the surface of the electric brush only after the electric brush is installed, so that the integral air pressure support of the electric brush frame when the electric brush is not installed is ensured.

The installation adjusting mechanism 8 comprises an adjusting clamp plate 81, a position of the adjusting clamp plate 81 close to the lower portion penetrates through and is connected with a movable insertion rod 82 in a sliding mode, and a contact base plate 83 is fixedly connected to the left end of the movable insertion rod 82. The electric brush is directionally guided and installed, and the stability of electric brush installation is guaranteed.

The top surface of the contact backing plate 83 is rotatably connected with a movable carrier plate 84, a containing chute 85 is uniformly arranged inside the movable carrier plate 84, an elastic push block 86 is slidably connected to the middle position inside the containing chute 85, the bottom end of the elastic push block 86 is fixedly connected with an extrusion contact 87, and two sides of the top end of the elastic push block 86 are fixedly connected with resistance increasing clamping plates 88. Further improve the stability after the brush installation, avoid the brush atress to drop.

The working principle is as follows: vertically inserting an electric brush into a position between the protection clamping piece mechanism 7 and the installation adjusting mechanism 8, clamping the electric brush under the elastic action of the protection clamping piece mechanism 7 and the installation adjusting mechanism 8, and in the downward installation process of the electric brush, contacting the protection pasting plates 72 towards the inner wall direction of the positioning clamping plate 71 by extrusion force until the two protection pasting plates 72 are turned over to be in a horizontal state, turning over the resistance-increasing gaskets 74 to be in contact with the electric brush at the moment, contacting the surfaces of the protection pasting plates 72 outside the resistance-increasing gaskets 74 with suspension to form multi-point contact with the electric brush, improving the extrusion friction force at the contact point position, and improving the heat dissipation efficiency of the electric brush at the suspension position; the shaking generated when the electric brush works can extrude the pressing spring 5 and move the sealing turnover plate 43 upwards, so that the air in the air groove pipe 41 is conducted to the protective clamping piece mechanism 7 from the guide hole 44 and is sprayed to the surface of the electric brush from the protective clamping piece mechanism 7, the fluidity of the air around the electric brush is improved, the heat dissipation efficiency of the electric brush is accelerated, and the service life of the electric brush is prolonged; when the sealing turnover plate 43 moves upwards to extrude the elastic extrusion bag 42, the air pressure in the elastic extrusion bag 42 is increased and is conducted to the inside of the expansion contact piece 45 to expand the expansion contact piece, the expanded expansion contact piece 45 permeates to the position of the pressing spring 5, the upper part of the pressing spring 5 is stabilized, the stability of the electric brush holder is improved, and the deviation caused by an overlarge extrusion force structure is avoided; the extrusion force of the electric brush enables the dredging heat dissipation ring 73 to be in contact with the extrusion dredging head 77, so that the extrusion dredging head 77 is opened, the air pressure conducted by the adjusting and pressing mechanism 4 is received in the air storage inner groove 75 at the moment, so that the air is conducted in a directional mode, the air can be conducted on the surface of the electric brush only after the electric brush is installed, and the integral air pressure support performance of the electric brush frame is guaranteed when the electric brush is not installed; when the brush is installed, the brush is gradually contacted with the surface of the movable carrier plate 84 downwards, so that the movable inserted rod 82 gradually moves towards the right side until the contact base plate 83 is matched with the inside of the adjusting splint 81, at the moment, the movable carrier plate 84 is attached to the left surface of the adjusting splint 81 and is matched with the protective splint mechanism 7 to squeeze and clamp the brush, so that the brush is directionally guided and installed, and the stability of the brush installation is ensured; when the movable carrier plate 84 gradually contacts with the adjusting clamp plate 81, the extrusion contact 87 pushes the resistance increasing clamp plate 88 outwards, the rough surface of the resistance increasing clamp plate 88 contacts with the surface of the electric brush to increase resistance, the stability of the electric brush after being installed is further improved, and the electric brush is prevented from falling off under stress.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A brush holder for a rotating electrical machine, comprising a holder groove (1), characterized in that: the back of the top of the supporting frame groove (1) is fixedly connected with a conduction limiting plate (2), the front surface of the conduction limiting plate (2) is sleeved and connected with a receiving bottom plate (3) in a sliding way, the bottom of the containing bottom plate (3) is arranged corresponding to the top of the supporting frame groove (1), the middle position of the bottom of the containing bottom plate (3) is fixedly connected with an adjusting pressing mechanism (4), a pressing spring (5) is fixedly connected at the middle position inside the supporting frame groove (1), the top end of the pressing spring (5) is fixedly connected with the bottom of the adjusting pressing mechanism (4), resistance-increasing inner grooves (6) are uniformly arranged on the surface of the front position of the conduction limiting plate (2), one side of the top surface of the containing bottom plate (3) is fixedly connected with a protective clamping piece mechanism (7), the top surface of the containing bottom plate (3) and the position symmetrical to the protective clamping piece mechanism (7) are fixedly connected with an installation adjusting mechanism (8);

the adjusting and pressing mechanism (4) comprises an air groove pipe (41), an elastic extrusion bag (42) is fixedly connected to the upper part of the inner wall of the air groove pipe (41), and a sealing turnover plate (43) is arranged in the middle of the inner part of the air groove pipe (41);

a flow guide hole (44) is formed in the middle of the top of the air groove pipe (41), an expansion contact piece (45) is fixedly connected to the position, close to the lower side, of the inner wall of the air groove pipe (41), and the interior of the expansion contact piece (45) is communicated with the elastic extrusion bag (42);

the protective clamping piece mechanism (7) comprises a positioning clamping plate (71), the bottom of the positioning clamping plate (71) is fixedly connected with the containing bottom plate (3), the inner side surface of the positioning clamping plate (71) is evenly connected with protective flitches (72) in a sliding mode, and one ends, far away from the positioning clamping plate (71), of the two protective flitches (72) are connected in a rotating mode;

dredging heat dissipation rings (73) are uniformly arranged at the vertical positions of the surface of the protective pasting plate (72), and resistance increasing gaskets (74) are fixedly connected at the vertical positions of the two ends of the surface of the protective pasting plate (72);

the inner middle position of the positioning clamp plate (71) is provided with an inner gas storage groove (75), the bottom of the inner gas storage groove (75) is correspondingly communicated with the flow guide hole (44), the front position of the inner gas storage groove (75) is uniformly provided with directional exhaust holes (76), the fixed connection end, located on the inner side of the positioning clamp plate (71), of the directional exhaust holes (76) is provided with an extrusion dredging head (77), and the extrusion dredging head (77) is correspondingly arranged with a dredging heat dissipation ring (73).

2. A brush holder for a rotary electric machine according to claim 1, characterized in that: installation adjustment mechanism (8) are including adjusting splint (81), it runs through and sliding connection has activity inserted bar (82) to adjust splint (81) position near the below, the left side end fixedly connected with contact backing plate (83) of activity inserted bar (82).

3. A brush holder for a rotary electric machine according to claim 2, characterized in that: the contact device is characterized in that a movable carrier plate (84) is rotatably connected to the surface of the top of the contact base plate (83), a containing sliding groove (85) is uniformly formed in the movable carrier plate (84), an elastic pushing block (86) is slidably connected to the middle position inside the containing sliding groove (85), an extrusion contact (87) is fixedly connected to the bottom end of the elastic pushing block (86), and resistance increasing clamping plates (88) are fixedly connected to the two sides of the top end of the elastic pushing block (86).