CN206379784U - A kind of linear stepping motor rotor - Google Patents
A kind of linear stepping motor rotor Download PDFInfo
- Publication number
- CN206379784U CN206379784U CN201621214569.9U CN201621214569U CN206379784U CN 206379784 U CN206379784 U CN 206379784U CN 201621214569 U CN201621214569 U CN 201621214569U CN 206379784 U CN206379784 U CN 206379784U
- Authority
- CN
- China
- Prior art keywords
- rotary shaft
- bearing pin
- storage tank
- sliding bearing
- stepping motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a kind of linear stepping motor rotor, it includes：Rotor body, the rotor body has main part and sliding bearing, and the sliding bearing is fixedly installed in main part, and bearing pin storage tank is formed between the main part and the sliding bearing；Rotary shaft, the rotary shaft is through in rotor body, bearing pin is provided with the rotary shaft, the protuberance that the bearing pin protrudes above the periphery wall of rotary shaft is stretched into the bearing pin storage tank, and the protuberance has certain one-movement-freedom-degree in bearing pin storage tank along the circumference of rotary shaft, when protuberance is moved in bearing pin storage tank, relatively rotated between the rotary shaft and rotor body.The utility model can make rotary shaft obtain the torque more than nominal torque, overcome screwing force torque, realize the good rotation of rotary shaft on startup.
Description
Technical field
The utility model is related to a kind of linear stepping motor rotor.
Background technology
At present, small linear stepper motor is because of its simple in construction, efficiency high, and the low advantage of production cost is automatic in office
Change and had broad application prospects in field, the automotive fields such as machine.In the rotor of small linear stepper motor, screw rod is used
6 and axle sleeve interference fit connection be one of which structure, as shown in figure 1, this cause screw rod 6 and axle sleeve to revolve with credit union simultaneously
Turn, during linear stepping motor is run, nut runs to the bottom of screw rod 6, nut often occur and the engagement of screw rod 6 is tightened
Power is excessive to cause torque to be more than Rated motor torque and screw rod 6 the problem of can not normally start, for this problem, screw rod 6 and axle
The structure of set interference fit connection is commonly designed new driver, loads overload current during electric motor starting in the circuit board so that
Motor obtains overload torque to overcome excessive screwing force, but there are problems that four：
1st, loading overload current can reduce the service life of circuit board.Still operating overload during normal operation after electric motor starting
Electric current, does not only exist the wasting of resources, and applying overload current for a long time to motor can cause heating temp too high, damage showing for motor
As.
2nd, cost is added using the driver especially write.
3rd, screw rod 5 is slender axles, easily flexural deformation, the high phenomenon of scrappage occurs during press-in axle sleeve 1.
The content of the invention
Technical problem to be solved in the utility model is to overcome the defect of prior art there is provided a kind of linear stepping motor
Rotor, it can make rotary shaft obtain the torque more than nominal torque, overcomes screwing force torque, realizes and turn on startup
The good rotation of moving axis.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：A kind of linear stepping motor rotor, it is wrapped
Include：
Rotor body, the rotor body has main part and sliding bearing, and the sliding bearing is fixedly installed on master
Bearing pin storage tank is formed with body portion, and between the main part and the sliding bearing；
Rotary shaft, the rotary shaft is through in rotor body, and bearing pin is provided with the rotary shaft, and the bearing pin is protruded above
The protuberance of the periphery wall of rotary shaft is stretched into the bearing pin storage tank, and the protuberance in bearing pin storage tank along turn
The circumference of moving axis has certain one-movement-freedom-degree, when protuberance is moved in bearing pin storage tank, the rotary shaft and rotor
Relatively rotated between body.
A kind of structure of main part is further provided, the main part includes magnet ring and moulding, the magnet ring
It is arranged on the periphery wall of moulding.
A kind of structure for forming bearing pin storage tank is further provided, the sliding bearing is fixedly installed on the interior of moulding
On perisporium, inwardly projecting stopper is provided with the moulding, the one of the axial end portion of the stopper and the sliding bearing
Axial end portion forms relative two walls of the bearing pin storage tank in the axial direction.
A kind of structure of sliding bearing accommodating inside is further provided, to avoid its axial float, the main part
Also include end cap, the end cap is arranged in moulding, another axial end portion of the sliding bearing and the axial direction of the end cap
End abutment is together.
Further, the rotary shaft sequentially passes through the stopper, sliding bearing and end cap, and the periphery of the rotary shaft
Between wall and stopper, between the periphery wall of the rotary shaft and sliding bearing and the rotary shaft periphery wall and the end cap
Between be gap coordinate.
Further for reduction manufacture difficulty, and cost is reduced, the moulding and/or the end cap are by PA66+GF30
Engineering plastics are made.
Further, gap of the circumferential end faces of the protuberance and the bearing pin storage tank in the circumference of rotary shaft is
0.1mm~0.3mm.
Further, the rotary shaft is screw rod.
Further, it is interference fit between the internal perisporium of the sliding bearing and moulding.
Employ after above-mentioned technical proposal, the utility model has following beneficial effect：
1st, start without overload current, it is ensured that the normal service life of motor and circuit board.
2nd, the use of generic drive is that the startup of motor can be achieved, without separately writing driver, reduces cost.
3rd, while suitable for screwing force torque is excessive and the normal both of these case of torque.
4th, screw rod press-in axle sleeve deformation, the problem of scrappage is high are overcome.
Brief description of the drawings
Fig. 1 is a kind of structural representation of linear stepping motor rotor of prior art；
Fig. 2 is a kind of structure sectional view of linear stepping motor rotor of the present utility model；
Fig. 3 is a kind of assembling explosive view of linear stepping motor rotor of the present utility model；
Fig. 4 is a kind of structural representation of linear stepping motor rotor of the present utility model.
Embodiment
In order that content of the present utility model is easier to be clearly understood, below according to specific embodiment and with reference to attached
Figure, is described in further detail to the utility model.
As shown in figs. 2 to 4, a kind of linear stepping motor rotor, it includes：
Rotor body, the rotor body has main part and sliding bearing 1, and the sliding bearing 1 is fixedly installed on
Bearing pin storage tank 11 is formed with main part, and between the main part and the sliding bearing 1；Sliding bearing 1 is adopted
Use oil-less self-lubricating bearing；
Rotary shaft, the rotary shaft is through in rotor body, and bearing pin 2 is provided with the rotary shaft, and the bearing pin 2 is convex
The protuberance for going out the periphery wall of rotary shaft is stretched into the bearing pin storage tank 11, and the protuberance is in bearing pin storage tank 11
There is certain one-movement-freedom-degree along the circumference of rotary shaft, when protuberance is moved in bearing pin storage tank 11, the rotation
Relatively rotated between axle and rotor body；When protuberance can not be moved in bearing pin storage tank 11, and rotor body exists
During rotation, the rotor body drives rotary shaft to rotate by bearing pin 2.
As shown in Figure 2,3, the main part includes magnet ring 3 and moulding 4, and the magnet ring 3 is arranged on the outer of moulding 4
On perisporium.
As shown in Fig. 2 the sliding bearing 1 is fixedly installed on the internal perisporium of moulding 4, set in the moulding 4
There is inwardly projecting stopper 41, the axial end portion of the stopper 41 and an axial end portion of the sliding bearing 1 form the pin
Relative two walls of axle storage tank 11 in the axial direction.
As shown in Fig. 2 the main part also includes end cap 5, the end cap 5 is arranged in moulding 4, the sliding axle
Hold together with 1 another axial end portion abuts with the axial end portion of the end cap 5.
As shown in Fig. 2 the rotary shaft sequentially passes through the stopper 41, sliding bearing 1 and end cap 5, and the rotation
Between the periphery wall and stopper 41 of axle, between the periphery wall of the rotary shaft and sliding bearing 1 and the rotary shaft periphery
It is that gap coordinates between wall and the end cap 5.
The moulding 4 and/or the end cap 5 are made up of PA66+GF30 engineering plastics.PA66+GF30 engineering plastics have
There are high intensity, special heat-staple performance, the high temperature of 200 DEG C of ability, and linear electric motors maximum temperature is 125 DEG C, density is
1.33-1.39, it is suitable for linear motor rotor part.
Gap of the circumferential end faces of the protuberance and the bearing pin storage tank 11 in the circumference of rotary shaft be 0.1mm~
0.3mm.Wherein the diameter of bearing pin 2 can be 2mm~3mm, and bearing pin 2 is inserted into the axial outer end face of rear pin shaft 2 less than sliding bearing 1
Gap of the circumferential end faces of corresponding circumferential end surfaces, the protuberance and the bearing pin storage tank 11 in the circumference of rotary shaft is excellent
0.2 is selected, rotor rotation precision is reduced if gap is excessive, rotary shaft will produce larger journey error, and during rotor startup
There is larger vibration.If gap is too small, moulding can not provide enough torques, start rotary shaft and rotate, preferred
Interstice coverage can play and more preferably start effect.
As shown in figure 1, the rotary shaft is screw rod 6.
It is interference fit between the internal perisporium of the sliding bearing 1 and moulding 4.
Operation principle of the present utility model is as follows：
When screwing force torque between screw rod 6 and nut is more than the nominal torque of motor, motor is started with rated voltage, by
It is that gap coordinates in screw rod 6 and moulding 4, moulding 4 first rotates acquisition kinetic energy, and in bearing pin storage tank 11, moulding 4 hits
To bearing pin 2, screw rod 6 is obtained the torque more than nominal torque, overcome screwing force torque, realize the rotation of screw rod 6.
Particular embodiments described above, enters to technical problem, technical scheme and the beneficial effect that the utility model is solved
Go further description, should be understood that and the foregoing is only specific embodiment of the utility model, and without
It is all within spirit of the present utility model and principle in limitation the utility model, any modification, equivalent substitution and improvements done
Deng should be included within protection domain of the present utility model.
Claims (6)
1. a kind of linear stepping motor rotor, it is characterised in that it includes：
Rotor body, the rotor body has main part and sliding bearing (1), and the sliding bearing (1) is fixedly installed on
Bearing pin storage tank (11) is formed with main part, and between the main part and the sliding bearing (1)；
Rotary shaft, the rotary shaft is through in rotor body, and bearing pin (2) is provided with the rotary shaft, and the bearing pin (2) is convex
The protuberance for going out the periphery wall of rotary shaft is stretched into the bearing pin storage tank (11), and the protuberance is in bearing pin storage tank
(11) there is certain one-movement-freedom-degree along the circumference of rotary shaft in, when protuberance is moved in bearing pin storage tank (11),
Relatively rotated between the rotary shaft and rotor body；
The main part includes magnet ring (3) and moulding (4), and the magnet ring (3) is arranged on the periphery wall of moulding (4)；
The sliding bearing (1) is fixedly installed on the internal perisporium of moulding (4), is provided with the moulding (4) to convex
The stopper (41) gone out, the axial end portion of the stopper (41) and an axial end portion of the sliding bearing (1) form the bearing pin
Relative two walls of storage tank (11) in the axial direction；
The main part also includes end cap (5), and the end cap (5) is arranged in moulding (4), the sliding bearing (1)
Together with another axial end portion is abutted with the axial end portion of the end cap (5).
2. a kind of linear stepping motor rotor according to claim 1, it is characterised in that：The rotary shaft sequentially passes through institute
State between stopper (41), sliding bearing (1) and end cap (5), and the periphery wall and stopper (41) of the rotary shaft, described rotate
It is that gap is matched somebody with somebody between the periphery wall and sliding bearing (1) of axle and between the periphery wall and the end cap (5) of the rotary shaft
Close.
3. a kind of linear stepping motor rotor according to claim 1, it is characterised in that：The moulding (4) and/or institute
End cap (5) is stated to be made up of PA66+GF30 engineering plastics.
4. a kind of linear stepping motor rotor according to claim 1, it is characterised in that：The protuberance and the bearing pin
Gap of the circumferential end faces of storage tank (11) in the circumference of rotary shaft is 0.1mm~0.3mm.
5. a kind of linear stepping motor rotor according to claim 1, it is characterised in that：The rotary shaft is screw rod (6).
6. a kind of linear stepping motor rotor according to claim 1, it is characterised in that：The sliding bearing (1) and note
It is interference fit between the internal perisporium of plastic (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621214569.9U CN206379784U (en) | 2016-11-10 | 2016-11-10 | A kind of linear stepping motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621214569.9U CN206379784U (en) | 2016-11-10 | 2016-11-10 | A kind of linear stepping motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206379784U true CN206379784U (en) | 2017-08-04 |
Family
ID=59401625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621214569.9U Active CN206379784U (en) | 2016-11-10 | 2016-11-10 | A kind of linear stepping motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206379784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116388429A (en) * | 2023-04-20 | 2023-07-04 | 上海莘汭驱动技术有限公司 | Hollow cup motor rotor structure |
-
2016
- 2016-11-10 CN CN201621214569.9U patent/CN206379784U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116388429A (en) * | 2023-04-20 | 2023-07-04 | 上海莘汭驱动技术有限公司 | Hollow cup motor rotor structure |
| CN116388429B (en) * | 2023-04-20 | 2024-03-01 | 上海莘汭驱动技术有限公司 | Hollow cup motor rotor structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203945935U (en) | A kind of automobile energy regenerative suspension bumper | |
| CN206379784U (en) | A kind of linear stepping motor rotor | |
| CN206323228U (en) | A kind of micro direct current brushless motor | |
| CN208241506U (en) | A kind of high thrust high precision ball lead screw motor | |
| CN103795221A (en) | Stepping linear motor equipped with rotation-proof screw rod | |
| CN200973040Y (en) | Insulation bearing sleeve for motor | |
| CN110601451B (en) | Engine and motor assembly | |
| CN205489858U (en) | Rotor structure of built -in permanent magnet motor | |
| CN206149054U (en) | Linear stepping motor rotor | |
| CN105743276A (en) | Low-tooth-difference speed reducer with built-in permanent-magnet synchronous motor | |
| CN206379785U (en) | Linear stepping motor rotor structure | |
| CN206341072U (en) | A kind of low-voltage high-precision servo turntable hollow type disc type electric machine | |
| CN206452198U (en) | A kind of rotor for linear stepping motor | |
| CN203209734U (en) | Tyre expanding device for manufacturing spigot of motor shell | |
| CN207265810U (en) | A kind of integrated driving gear motor assembly | |
| CN206149046U (en) | Linear stepping motor rotor equipment | |
| CN211063482U (en) | Engine and motor assembly | |
| CN202997903U (en) | Stepping linear motor equipped with rotation-proof screw rod | |
| CN211063494U (en) | Engine and motor assembly | |
| CN101402238A (en) | Injection moulding machine | |
| CN207968188U (en) | Nose assembly and electric pushrod | |
| CN207598732U (en) | A kind of generator connector sleeve | |
| CN206813092U (en) | A kind of vehicle and angle stroke electric actuator | |
| CN214543963U (en) | Positioning assembly used on miniature special motor shaft | |
| CN208169483U (en) | Rotary actuator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: LARSEN SIGURD Inventor after: Jens Pavarik Inventor before: Zhang Binglun Inventor before: Dang Hongguan Inventor before: Ren Hongwei |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181115 Address after: The Danish nordborg city Nuobao dimension DK-6430 No. 81 Patentee after: DANFOSS AS Address before: 213031 No. 18 Xinsi Road, Electronic Science and Technology Industrial Park, Xinbei District, Changzhou City, Jiangsu Province Patentee before: Changzhou Chengli Electronic Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CB03 | Change of inventor or designer information |
Inventor after: Siegdrason Inventor after: Jasper Paverick Inventor before: Zhang Binglun Inventor before: Dang Hongguan Inventor before: Ren Hongwei |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190103 Address after: The Danish nordborg city Nuobao dimension DK-6430 No. 81 Patentee after: DANFOSS AS Address before: 213031 No. 18 Xinsi Road, Electronic Science and Technology Industrial Park, Xinbei District, Changzhou City, Jiangsu Province Patentee before: Changzhou Chengli Electronic Co., Ltd. |
|
| TR01 | Transfer of patent right |