CN210198687U - Motor shaft shearing resistance test fixture - Google Patents
Motor shaft shearing resistance test fixture Download PDFInfo
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- CN210198687U CN210198687U CN201920682323.1U CN201920682323U CN210198687U CN 210198687 U CN210198687 U CN 210198687U CN 201920682323 U CN201920682323 U CN 201920682323U CN 210198687 U CN210198687 U CN 210198687U
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Abstract
The utility model discloses a motor rotating shaft shearing resistance test tool, wherein a motor rotating shaft is arranged on the test tool, and the test tool comprises a supporting mechanism, a rotating shaft fixing device, a lever mechanism and a cam mechanism; the motor rotating shaft is fixedly arranged on the rotating shaft fixing device; the cam mechanism is arranged at the lower end of the lever mechanism. The utility model discloses a lever mechanism selects the atress fulcrum of suitable distance, joins in marriage the balancing weight, and impact force about cam mechanism produces reaches continuous, unanimous even atress, reaches the test of motor shaft shearing force, and is efficient, with low costs, and operation safety, frock carry out accurate location to the work piece, and the uniformity is high.
Description
Technical Field
The utility model relates to a motor shaft test field specifically is a motor shaft shearing resistance test fixture.
Background
The motor can sometimes take place the cracked condition of pivot afterbody when frequently starting, consequently need carry out the endurance test of anti-shear force to motor shaft fracture position, test motor shaft opens and stops the life-span, according to relevant national standard requirement, and the number of times of experiment should be not less than 10000 times.
According to the traditional test method, a locked rotor test is carried out according to the maximum torque of the motor, the specified torque is reached through feedback of a torque sensor, the motor is unloaded, then the motor is rotated, and the torque and the frequency of each time are recorded. This test method has the following disadvantages: the testing efficiency is low, more related equipment needs to be configured, and the manufacturing cost is high (a computer, a motor, a controller, a direct-current power supply cabinet, a 24V stabilized voltage power supply, a tool, a torque sensor, a CAN (controller area network) disc, a torque detector and the like are configured); and editing test software, converting alternating current into direct current by a direct current power supply cabinet to supply the direct current to a controller, driving a motor to rotate with load by the controller, and recording the shearing force and the frequency of the test.
SUMMERY OF THE UTILITY MODEL
For solving above-mentioned prior art's defect, the utility model provides a motor shaft shearing resistance test fixture, the utility model discloses a lever mechanism selects the atress fulcrum of suitable distance, joins in marriage the balancing weight, and impact force about cam mechanism produces reaches continuous, unanimous even atress, reaches the test of motor shaft shearing force, and is efficient, with low costs, and operation safety, the frock carries out accurate location to the work piece, and the uniformity is high.
In order to achieve the technical purpose, the utility model adopts the following technical scheme: a motor rotating shaft anti-shearing force testing tool is provided with a motor rotating shaft and comprises a supporting mechanism, a rotating shaft fixing device, a lever mechanism and a cam mechanism; the motor rotating shaft is fixedly arranged on the rotating shaft fixing device; the cam mechanism is arranged at the lower end of the lever mechanism;
the lever mechanism comprises a guide rod, a balancing weight, a support plate and a clamping ring;
the clamping ring is fixed at the upper end of the guide rod, the balancing weight is fixed on the guide rod, a linear bearing is arranged on the guide rod, and the linear bearing is fixed on the supporting mechanism; one end of the support plate is fixedly connected with the rotating shaft fixing device, the other end of the support plate is fixedly provided with a clamping plate, the guide rod penetrates through the clamping plate, and the guide rod slides along the clamping plate;
the cam mechanism comprises a driving device, a cam and a counting device; the driving device is rotationally connected with the cam; the surface of the cam is a closed surface capable of instantly generating a height difference; the bottom end of the guide rod slides along the surface of the cam;
when the cam rotates, the guide rod moves up and down linearly along the linear bearing under the action of the cam.
Furthermore, the supporting mechanism comprises a supporting frame, an upper panel, a first mounting plate and a second mounting plate; the upper panel is arranged at the upper end of the support frame, and the rotating shaft fixing device is arranged on the upper panel; the first mounting plate and the second mounting plate are arranged at the upper end and the lower end of the same side face of the support frame.
Further, the linear bearings comprise a first linear bearing, a second linear bearing; the first linear bearing is fixed on the second mounting plate, and the second linear bearing is fixed on the first mounting plate.
Furthermore, the rotating shaft fixing device comprises a fixing seat, a section limiting seat and a switching sleeve; the motor rotating shaft penetrates through the fixing seat, one end of the motor rotating shaft penetrates through the section limiting seat to be connected with the adapter sleeve, and the section limiting seat is provided with a photoelectric sensor; a bulge is arranged on the end surface of the adapter sleeve; a first positioning key is arranged between the adapter sleeve and the motor rotating shaft, and a second positioning key is arranged between the fixing seat and the motor rotating shaft; and a nut is arranged at one end of the motor rotating shaft, which is connected with the switching sleeve.
Further, the lever mechanism further comprises a deep groove ball bearing; the deep groove ball bearing is arranged at the lower end of the guide rod.
Further, the cam mechanism further comprises a bottom plate and a connecting shaft; the driving device is connected with the cam through a connecting shaft; a through groove corresponding to the cam is formed in the bottom plate; the connecting shaft is rotatably connected to the first vertical plate and the second vertical plate, and the cam is arranged between the first vertical plate and the second vertical plate.
Further, the counting device comprises a sensor and a sensing piece; one end of the induction sheet is fixed at the end part of the connecting shaft, and the other end of the induction sheet corresponds to the inductor.
Further, the surface of the cam comprises an arc-shaped surface and a plane, and the arc-shaped surface and the plane are connected end to form a closed surface; and the joint of the arc surface and the plane is processed by a fillet.
To sum up, the utility model discloses following technological effect has been gained:
the utility model discloses showing efficiency and the operation convenience that has improved motor shaft impact load test, through setting up drive arrangement, realizing full-automatic test to the atress is even, and uniformity, reliability are effectively guaranteed, do not have high-speed big moment of torsion rotation process, and area is little, and is with low costs, does not need complicated equipment.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a shaft fixing device;
FIG. 3 is a sectional view of the spindle fixing device;
FIG. 4 is a schematic diagram of a lever mechanism;
FIG. 5 is a schematic view of a cam mechanism;
FIG. 6 is a schematic view of an embodiment of a cam configuration;
in the figure, 1, a supporting mechanism, 101, an upper panel, 102, a supporting frame, 103, a first mounting panel, 104, a second mounting panel, 2, a rotating shaft fixing device, 201, a fixing seat, 202, a section limiting seat, 203, an adapter sleeve, 204, a bolt, 205, a protrusion, 206, a nut, 207, a first positioning key, 208, a second positioning key, 209, a photoelectric sensor, 3, a lever mechanism, 301, a guide rod, 302, a counterweight, 303, a first linear bearing, 304, a second linear bearing, 305, a deep groove ball bearing, 306, a clamping plate, 307, a support plate, 308, a clamping ring, 4, a cam mechanism, 401, a bottom plate, 402, a driving device, 403, a connecting plate, 404, a through groove, 405, a first vertical plate, 406, a second vertical plate, 407, an inductor, 408, an induction sheet, 409, 410, a cam, 411, an arc-shaped surface, 412, a plane, 413, a first connection surface, 414, a second connection surface, 415. a key groove 5 and a motor rotating shaft.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Example (b):
as shown in fig. 1, the test tool for the shearing resistance of the motor rotating shaft is provided with the motor rotating shaft 5, and is used for testing the shearing resistance of the motor rotating shaft 5, and comprises a supporting mechanism 1, a rotating shaft fixing device 2, a lever mechanism 3 and a cam mechanism 4; the rotating shaft fixing device 2 is arranged at the upper end of the supporting mechanism 1, the lever mechanism 3 is arranged on the side face of the supporting mechanism 1, the rotating shaft fixing device 2 is located at the upper portion of the lever mechanism 3, the cam mechanism 4 is located at the lower end of the lever mechanism 3, and the cam mechanism 4 is a power output portion of the testing tool.
As shown in fig. 1, the motor shaft 5 is fixedly mounted on the shaft fixing device 2, so as to keep the motor shaft 5 from rotating, thereby facilitating the test.
As shown in fig. 1, the lever mechanism 3 includes a guide rod 301, a weight 302, a support plate 307, and a snap ring 308. A snap ring 308 is fixed to the upper end of the guide rod 301 as a point against which an up-down impact is applied. The weight 302 is fixed on the guide rod 301, and in actual use, the weight of the weight 302 and the position of the weight 302 on the guide rod 301 are determined according to the specification of the motor rotating shaft to be tested. The guide rod 301 is provided with a linear bearing, the linear bearing is fixed on the supporting mechanism 1, and the linear bearing is used for guiding to ensure that the guide rod 301 moves up and down; one end of the support plate 307 is fixedly connected with the rotating shaft fixing device 2, the other end of the support plate is fixedly provided with a clamping plate 306, the guide rod 301 penetrates through the clamping plate 306, and the guide rod 301 slides along the clamping plate 306; the support plate 307 is kept still, when the guide rod 301 moves downwards, the clamping ring 308 has a downward impact force under the action of the gravity of the counterweight 302, and the clamping ring 308 transmits the impact force to the clamping plate 306 and the support plate 307, so as to transmit the impact force to the rotating shaft fixing device 2, so as to transmit the impact force to the motor rotating shaft 5, and finally, a test force for the motor rotating shaft 5 is formed.
As shown in fig. 1, the cam mechanism 4 includes a driving device 402, a cam 410, a counting device; the driving device 402 is rotationally connected with the cam 410, and the driving device 402 adopts a motor; the surface of the cam 410 is a closed surface capable of instantaneously generating a height difference; the surface of the cam 410 is in contact with the bottom end of the guide rod 301, and the bottom end of the guide rod 301 slides along the surface of the cam 410; when the cam 410 rotates, the guide rod 301 moves linearly up and down along the linear bearing under the action of the cam 410. The counting device is used to record the number of revolutions of the cam 410.
As shown in fig. 1, the support mechanism 1 includes a support frame 102, an upper panel 101, a first mounting plate 103, and a second mounting plate 104; the upper panel 101 is arranged at the upper end of the support frame 102, and the rotating shaft fixing device 2 is arranged on the upper panel 101; the first mounting plate 103 and the second mounting plate 104 are disposed at the upper and lower ends of the same side of the support frame 102.
The linear bearings include a first linear bearing 303, a second linear bearing 304; first linear bearing 303 is fixed to second mounting plate 104 and second linear bearing 304 is fixed to first mounting plate 103. The guide rod 301 is disposed through the first linear bearing 303 and the second linear bearing 304. The first linear bearing 303 is positioned above the counterweight block 302, and the second linear bearing 304 is positioned below the counterweight block 302;
as shown in fig. 1 and 2, the rotating shaft fixing device 2 includes a fixing seat 201, a section limiting seat 202, and an adapter sleeve 203; motor shaft 5 runs through fixing base 201 and sets up, the spacing seat 202 in section is passed to motor shaft 5's one end and is connected switching cover 203, the spacing seat 202 in section is located motor shaft 5 atress maximum and takes place the position of disconnected axle, it is controllable to use the stress point, be equipped with photoelectric sensor 209 on the spacing seat 202 in section, photoelectric sensor 209 is electrically connected with drive arrangement 402 electricity, photoelectric sensor 209 response switching cover 203, when motor shaft 5 breaks, switching cover 203 takes the fracture part to break away from the spacing seat 202 in section, photoelectric sensor 209 does not respond to switching cover 203, send stop signal to drive arrangement 402, drive arrangement 402 stop work, and record current impact number of times, send out the alarm and inform the operating personnel. In this embodiment, the photoelectric sensor 209 is of the type E3Z-LS61 OMRON.
Two bolts 204 are further arranged on the fixing seat 201, and the bottom ends of the bolts 204 abut against the motor rotating shaft 5 through a gasket, so that the fixation of the motor rotating shaft 5 is further enhanced.
As shown in fig. 3, a first positioning key 207 is arranged between the adapter sleeve 203 and the motor shaft 5, and a second positioning key 208 is arranged between the fixing seat 201 and the motor shaft 5, for enhancing the fixation of the motor shaft 5; one end of the motor rotating shaft 5 connected with the adapter sleeve 203 is provided with a nut 206 for reinforcing the fixation of the motor rotating shaft 5 and the adapter sleeve 203, and the adapter sleeve 203 is used as an adapter supporting point of the shearing force.
As shown in fig. 4, a protrusion 205 is provided on an end surface of the adapter sleeve 203, the strut 307 is fixedly connected with the adapter sleeve 203, and the protrusion 205 is embedded on the strut 307 to further ensure the fixation between the strut 307 and the adapter sleeve 203. The lever mechanism 3 further comprises a deep groove ball bearing 305; the deep groove ball bearing 305 is provided at the lower end of the guide rod 301. The deep groove ball bearing 305 is in contact with the cam 410 and slides along the track of the cam 410.
As shown in fig. 5, the cam mechanism 4 further includes a bottom plate 401, a connecting shaft 409; the driving device 402 is connected with the cam 410 through a connecting shaft 409; a through groove 404 corresponding to the cam 410 is formed in the bottom plate 401, and the through groove 404 provides a rotating space for the cam 410; a first vertical plate 405 and a second vertical plate 406 are arranged on two sides of the through groove 404, a connecting shaft 409 is rotatably connected to the first vertical plate 405 and the second vertical plate 406, and a cam 410 is arranged between the first vertical plate 405 and the second vertical plate 406. The driving device 402 is fixed to the connecting plate 403.
As shown in FIG. 5, the counting device includes a sensor 407 and a sensing plate 408, in this embodiment, the sensor 407 is of type EE-SX 671-671P; one end of the sensing piece 408 is fixed to the end of the connecting shaft 409, and the other end corresponds to the slot of the sensor 407. When the sensing piece 408 rotates along with the connecting shaft 409, the sensing piece 408 passes through the slot of the sensor 407 once per rotation, and the sensor 407 records the passing times of the sensing piece 408, so as to record the rotation number of the cam 410 as the impact times.
The cam 410 is formed into a shape capable of instantly generating a height difference and forming an impact force, and is driven to rotate by the driving device 402, so that the lever mechanism 3 performs an up-and-down circulating impact force, and a shear force test is performed on the motor shaft 5. As shown in fig. 6, the surface of the cam 410 includes an arc surface 411 and a plane surface 412, and the arc surface 411 and the plane surface 412 are connected end to form a closed surface; the two junctions of the arc-shaped surface 411 and the plane 412 are rounded to form a first junction surface 413 and a second junction surface 414. The cam 410 is provided with a shaft hole, one side of the shaft hole is provided with a key groove 415 for the connecting shaft 409 to pass through, and the connecting shaft 409 is provided with a convex block matched with the key groove 415 to ensure the stable connection of the connecting shaft 409 and the cam 410.
The deep groove ball bearing 305 moves on the arc surface 411, the first connection surface 413, the plane 412, the second connection surface 414 and the arc surface 411.
The arc surface 411 is a continuous arc surface, one end of the arc surface 411 is the highest point of the movement of the deep groove ball bearing 305, the other end is the lowest point, i.e. the first connection surface 413 is the highest point, the second connection surface 414 is the lowest point, i.e. the second connection surface 414 is the lowest point, when the deep groove ball bearing 305 is located on the second connection surface 414 at the lowest point, the arc surface 411 and the first connection surface 413 at the highest point, the deep groove ball bearing 305 is in an ascending stage, and preparation is made for reaching the highest point and instantly descending to form impact.
The length of the plane 412 is equal to the maximum distance between the snap ring 308 and the snap plate 306, so as to ensure that when the snap ring 308 impacts the snap plate 306, the deep groove ball bearing 305 just reaches the second connecting surface 414, and the impact of this time is finished and preparation is made for the next impact.
The working principle is as follows:
as shown in fig. 1 to 6, the fulcrum plate 307 is fixedly connected to the adaptor sleeve 203, the guide rod 301 moves up and down along the snap-gauge 306, the weight block 302 moves up and down along with the guide rod 301, and the first linear bearing 303, the second linear bearing 304 and the deep groove ball bearing 305 ensure that the guide rod 301 moves linearly.
When the driving device 402 drives the cam 410 to rotate, the deep groove ball bearing 305 moves along the arc-shaped surface 411, the first connecting surface 413, the plane 412, the second connecting surface 414 and the arc-shaped surface 411. When the deep groove ball bearing 305 moves from the first connection surface 413 to the plane 412, the guide rod 301 descends instantly and forms impact force due to the gravity of the counterweight block 302, the descending distance of the guide rod 301 is the length of the plane 412, the snap ring 308 descends along with the descending distance of the guide rod 301 and forms impact force, the snap ring 308 impacts the snap plate 306 downwards due to the gravity of the counterweight block 302, the snap plate 306 transmits the impact force to the motor rotating shaft 5 through the support plate 307 and the adapter sleeve 203, and the shearing force test is performed on the motor rotating shaft 5. When the snap ring 308 hits the snap plate 306 downward and the deep groove ball bearing 305 reaches the second connection surface 414, the cam 410 continues to rotate, the deep groove ball bearing 305 reaches the arc surface 411 and the first connection surface 413 again, and the snap ring 308 performs the next descending impact.
When the photoelectric sensor 209 senses that the motor rotating shaft 5 is broken, the photoelectric sensor 209 sends a stop signal to the driving device 402, and the driving device 402 stops rotating and gives an alarm to notify an operator.
In actual use, the threshold value of the sensor 407 may be set according to the specification of the motor shaft 5 to be tested, and when the count reaches the threshold value, the driving device 402 stops rotating, and the test stops.
This embodiment adopts lever principle to convert the moment of torsion that motor shaft bore into the suitable distance of two atress fulcrums, the distance between adapter sleeve 203 stress point and the cardboard 306 stress point promptly, cooperates the balancing weight of suitable weight on the suitable position of guide arm 301, calculates suitable impact velocity and height again, through the cam rotation, reaches continuous, unanimous shearing force, tests.
The scheme has the advantages of low energy consumption, safe operation, clean field environment, accurate positioning of the workpiece by the tool through the counter, theoretical calculation and mechanical simulation, reliable quality and high consistency, thereby meeting the performance test of the new energy high-performance motor rotating shaft of the automobile and realizing the anti-shearing force test of various motor rotating shafts by switching a small number of tools.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all the modifications and equivalents of the technical spirit of the present invention to any simple modifications of the above embodiments are within the scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides a motor shaft shearing resistance test fixture, install motor shaft (5) on the test fixture, its characterized in that: comprises a supporting mechanism (1), a rotating shaft fixing device (2), a lever mechanism (3) and a cam mechanism (4); the motor rotating shaft (5) is fixedly arranged on the rotating shaft fixing device (2); the cam mechanism (4) is arranged at the lower end of the lever mechanism (3);
the lever mechanism (3) comprises a guide rod (301), a balancing weight (302), a support plate (307) and a clamping ring (308); the clamping ring (308) is fixed at the upper end of the guide rod (301), the balancing weight (302) is fixed on the guide rod (301), a linear bearing is arranged on the guide rod (301), and the linear bearing is fixed on the supporting mechanism (1); one end of the support plate (307) is fixedly connected with the rotating shaft fixing device (2), the other end of the support plate is fixedly provided with a clamping plate (306), the guide rod (301) penetrates through the clamping plate (306), and the guide rod (301) slides along the clamping plate (306);
the cam mechanism (4) comprises a driving device (402), a cam (410) and a counting device; the driving device (402) is rotationally connected with the cam (410); the surface of the cam (410) is a closed surface capable of generating height difference instantly; the bottom end of the guide rod (301) slides along the surface of the cam (410);
when the cam (410) rotates, the guide rod (301) moves up and down linearly along the linear bearing under the action of the cam (410).
2. The motor rotating shaft shearing force resistance testing tool according to claim 1, characterized in that: the supporting mechanism (1) comprises a supporting frame (102), an upper panel (101), a first mounting plate (103) and a second mounting plate (104); the upper panel (101) is arranged at the upper end of the support frame (102), and the rotating shaft fixing device (2) is arranged on the upper panel (101); the first mounting plate (103) and the second mounting plate (104) are arranged at the upper end and the lower end of the same side face of the support frame (102).
3. The motor rotating shaft shearing force resistance testing tool according to claim 2, characterized in that: the linear bearings comprise a first linear bearing (303), a second linear bearing (304); the first linear bearing (303) is fixed on the second mounting plate (104), and the second linear bearing (304) is fixed on the first mounting plate (103).
4. The motor rotating shaft shearing force resistance testing tool according to claim 1, characterized in that: the rotating shaft fixing device (2) comprises a fixing seat (201), a section limiting seat (202) and a switching sleeve (203); the motor rotating shaft (5) penetrates through the fixing seat (201), one end of the motor rotating shaft (5) penetrates through the section limiting seat (202) to be connected with the adapter sleeve (203), and the photoelectric sensor (209) is arranged on the section limiting seat (202); a bulge (205) is arranged on the end face of the adapter sleeve (203); a first positioning key (207) is arranged between the adapter sleeve (203) and the motor rotating shaft (5), and a second positioning key (208) is arranged between the fixing seat (201) and the motor rotating shaft (5); and a nut (206) is arranged at one end of the motor rotating shaft (5) connected with the adapter sleeve (203).
5. The motor rotating shaft shearing force resistance testing tool according to claim 1, characterized in that: the lever mechanism (3) further comprises a deep groove ball bearing (305); the deep groove ball bearing (305) is arranged at the lower end of the guide rod (301).
6. The motor rotating shaft shearing force resistance testing tool according to claim 1, characterized in that: the cam mechanism (4) further comprises a bottom plate (401) and a connecting shaft (409); the driving device (402) is connected with a cam (410) through a connecting shaft (409); a through groove (404) corresponding to the cam (410) is formed in the bottom plate (401); a first vertical plate (405) and a second vertical plate (406) are arranged on two sides of the through groove (404), the connecting shaft (409) is rotatably connected to the first vertical plate (405) and the second vertical plate (406), and the cam (410) is arranged between the first vertical plate (405) and the second vertical plate (406).
7. The motor rotating shaft shearing force resistance testing tool according to claim 1, characterized in that: the counting device comprises a sensor (407) and a sensing piece (408); one end of the induction sheet (408) is fixed at the end part of the connecting shaft (409), and the other end of the induction sheet corresponds to the inductor (407).
8. The motor rotating shaft shearing force resistance testing tool according to claim 1, characterized in that: the surface of the cam (410) comprises an arc-shaped surface (411) and a plane (412), and the arc-shaped surface (411) and the plane (412) are connected end to form a closed surface; the connection part of the arc-shaped surface (411) and the plane (412) adopts fillet treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920682323.1U CN210198687U (en) | 2019-05-13 | 2019-05-13 | Motor shaft shearing resistance test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920682323.1U CN210198687U (en) | 2019-05-13 | 2019-05-13 | Motor shaft shearing resistance test fixture |
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| Publication Number | Publication Date |
|---|---|
| CN210198687U true CN210198687U (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920682323.1U Active CN210198687U (en) | 2019-05-13 | 2019-05-13 | Motor shaft shearing resistance test fixture |
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| CN (1) | CN210198687U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082087A (en) * | 2019-05-13 | 2019-08-02 | 无锡科力捷新能源科技有限公司 | Motor shaft shearing resistance test fixture |
| CN114295496A (en) * | 2022-03-07 | 2022-04-08 | 常州新金宇传动科技有限公司 | Motor shaft shearing resistance test fixture |
-
2019
- 2019-05-13 CN CN201920682323.1U patent/CN210198687U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082087A (en) * | 2019-05-13 | 2019-08-02 | 无锡科力捷新能源科技有限公司 | Motor shaft shearing resistance test fixture |
| CN110082087B (en) * | 2019-05-13 | 2023-11-14 | 超昇速科技(无锡)有限公司 | Motor rotating shaft shearing force resistance testing tool |
| CN114295496A (en) * | 2022-03-07 | 2022-04-08 | 常州新金宇传动科技有限公司 | Motor shaft shearing resistance test fixture |
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Effective date of registration: 20220601 Address after: No. x019, Changzhou New Energy Automobile Research Institute, No. 178, Yulong South Road, Zhonglou District, Changzhou City, Jiangsu Province, 213023 Patentee after: MAISIWEI POWER TECHNOLOGY (CHANGZHOU) Co.,Ltd. Address before: Room 3115, No. 156, shangmadun Road, Liangxi District, Wuxi City, Jiangsu Province, 214000 Patentee before: Wuxi Kelijie New Energy Technology Co.,Ltd. |
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