CN217981757U - Motor is to dragging test bench - Google Patents
Motor is to dragging test bench Download PDFInfo
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- CN217981757U CN217981757U CN202221571513.4U CN202221571513U CN217981757U CN 217981757 U CN217981757 U CN 217981757U CN 202221571513 U CN202221571513 U CN 202221571513U CN 217981757 U CN217981757 U CN 217981757U
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Abstract
The utility model discloses a motor counter-dragging test bed, which comprises a cast iron platform, wherein a clamping bracket is fixed on the cast iron platform, hydraulic corner oil cylinders are respectively arranged on two sides of the clamping bracket, a positioning through hole is formed in the middle of the clamping bracket, and a conical positioning pin is arranged on the periphery of the positioning through hole; a dynamometer fixing frame for fixing the dynamometer is installed on the left side of the clamping support, the dynamometer is connected with a bearing box through a torque sensor, and the bearing box is connected with a coupler; a conveying structure is arranged on the right side of the clamping support and connected with a lifting mechanism, and an L-shaped motor fixing seat to be tested is placed on the conveying structure; a positioning hole matched with the conical positioning pin is formed on the fixed seat of the tested motor; and positioning plates are fixed on two sides of the top of the bottom plate of the fixed seat of the motor to be detected. The utility model discloses vibrations when can effectively reduce the motor test, and can realize the automatic butt joint of motor and shaft coupling, save the manual work, improved the security of test.
Description
Technical Field
The utility model relates to the field of machinary, especially, relate to a motor is to dragging test bench.
Background
After the assembly of driving motor was accomplished on the new energy automobile, need utilize the motor to carry out automatic test to dragging the test bench before inserting the production line, detect whether motor performance accords with the designing requirement, but current motor has following problem to dragging the test bench:
1. the conventional structure of the motor drag test bed is as follows: the dynamometer, the torque sensor, the bearing box, the coupler and the tested motor have the highest rotating speed of 5000-8000/rpm during testing, and large vibration is generated.
2. The tested motor is located on the conveying line and is not fixed, if the direct coupling carries out performance testing, because the conveying line only undertakes the conveying task, the structure is comparatively single thin, the produced vibration of high rotational speed when not enough bearing performance testing, the tolerance of the tested motor tool also can lead to the error of axle centering to be difficult to avoid, so influence test structure that can be very big, damage product or frock, product or part fly out injury people when more can lead to the test.
3. Most of main shafts of driving motors on new energy automobiles are involute inner/outer splines, one end of a coupler connected with the motor is made into the involute inner/outer splines matched with the motor main shaft for transmission and torque transmission, the spline and the spline are matched in a way that spline teeth are staggered by a specific angle and then are assembled, automatic centering and coupling testing is performed, the angle of stopping the coupler after rotation is uncertain, the angle of the assembled motor main shaft is uncertain, and the condition that the spline teeth collide against the spline teeth and the motor main shaft or the coupler are damaged can be caused when the coupler is automatically centered. And when the tested motor is installed manually, the motor risks falling off or damaging products.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a motor is to dragging test bench.
The purpose of the utility model is realized through the following technical scheme:
a motor counter-dragging test bed comprises a cast iron platform, wherein a clamping support is fixed on the cast iron platform, hydraulic corner oil cylinders are respectively installed on two sides of the clamping support, a positioning through hole is formed in the middle of the clamping support, and a conical positioning pin is installed on the periphery of the positioning through hole; a dynamometer fixing frame for fixing a dynamometer is installed on the left side of the clamping support, the dynamometer is connected with a bearing box through a torque sensor, and the bearing box is connected with a coupler; a conveying structure is arranged on the right side of the clamping support and connected with a lifting mechanism, and an L-shaped motor fixing seat to be tested is placed on the conveying structure; a positioning hole matched with the conical positioning pin is formed on the fixed seat of the tested motor; positioning plates are fixed on two sides of the top of the bottom plate of the fixed seat of the motor to be detected; the fixed mount is fixed on the fixed seat of the tested motor, and the fixed mount is in threaded connection with a fixing bolt.
In a further improvement, the conveying structure is a double-speed chain; the lifting mechanism is a conveying line lifting cylinder.
In a further improvement, rollers are arranged on the side faces of four corners of the bottom of the fixed seat of the motor to be detected.
In a further improvement, the upper part and the lower part of two sides of the clamping bracket are both provided with hydraulic corner oil cylinders.
In a further improvement, a shock-absorbing foot pad is arranged at the bottom of the cast iron platform.
In a further improvement, the coupler comprises a coupler body, an elastic structure is arranged inside the right end of the coupler body, and a first internal spline is formed on the inner wall of the coupler body; a motor butt joint barrel is inserted into the right end of the coupler body, a first external spline matched with the first internal spline is formed at one end of the motor butt joint barrel, and a second internal spline matched with a second external spline of a motor spindle of a tested motor is formed at the other end of the motor butt joint barrel.
In a further improvement, the elastic structure is a belleville spring.
In a further improvement, an end cover matched with the belleville spring is fixed inside the right end of the coupler body.
Compared with the prior art, the utility model discloses a following beneficial effect has:
1. the utility model discloses a cast iron platform, the quality is great, can absorb to offset and reduce the influence of vibration to each part and test result.
2. The accurate automatic alignment of the motor is realized, and after the motor is aligned and fixed, the conveying line can be moved, and the influence of vibration on the conveying line during testing is prevented.
3. The automatic alignment of the splines can be realized, and the collision of the internal spline and the external spline can be effectively prevented.
4. And the butt joint is carried out through mechanical automatic feeding during testing, so that inaccuracy and danger during manual butt joint are effectively prevented.
The performance testing part of the motor assembly line can be directly carried out on line, the automatic completion of the motor drag test on the assembly line can be realized, and the motor drag test does not need to be carried out independently, so that the assembly process of the motor is simpler and more convenient, the efficiency is higher, the labor is saved, the safety risk is reduced, and the beat yield of the motor assembly line is improved.
6. The theoretical clamping force provided by a single hydraulic corner oil cylinder can reach more than 200KG under the oil pressure of 3MPa, and the use requirements of tested motors and tool trays with various weights are completely met.
Drawings
The present invention is further explained by using the attached drawings, but the content in the attached drawings does not constitute any limitation to the present invention.
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of the coupler body with the right end hidden;
fig. 3 is a schematic side structure view of the coupler body with the right end hidden.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples.
Example 1
The motor counter-dragging test bed shown in fig. 1-3 comprises a cast iron platform 1, a clamping support 2, a hydraulic corner oil cylinder 3, a positioning through hole 4, a conical positioning pin 5, a dynamometer fixing frame 6, a coupler 7, a tested motor fixing seat 8, a positioning hole 9, a positioning plate 10, a fixing frame 11, a fixing bolt 12, a speed multiplying chain 13, a conveying line lifting cylinder 14, a roller 15 and a shock absorption foot pad 16
Wherein, the clamping bracket 2 is fixed in the middle of the cast iron platform 1. The upper part and the lower part of two sides of the clamping bracket 2 are both provided with hydraulic corner oil cylinders 3, and the total number of the hydraulic corner oil cylinders 3 is four.
A positioning through hole 4 is formed in the middle of the clamping support 2, and a conical positioning pin 5 is arranged on the periphery of the positioning through hole 4; the left side of the clamping support 2 is provided with a dynamometer fixing frame 6 for fixing the dynamometer, the dynamometer is connected with a bearing box through a torque sensor, and the bearing box is connected with a coupler 7. A speed multiplying chain 13 is arranged on the right side of the clamping support 2, the speed multiplying chain 13 is connected with a conveying line lifting cylinder 14, and an L-shaped tested motor fixing seat 8 is placed on a conveying structure; a positioning hole 9 matched with the conical positioning pin 5 is formed on the tested motor fixing seat 8; positioning plates 10 are fixed on two sides of the top of the bottom plate of the fixed seat 8 of the motor to be detected; the fixed mount 11 is further fixed on the tested motor fixed seat 8, and the fixed mount 11 is in threaded connection with a fixing bolt 12.
The utility model discloses a use method as follows:
the motor is placed on a tested motor fixing seat 8, is firstly positioned through a positioning plate 10 and then is fixed through a fixing bolt 12. The speed multiplying chain 13 transports the motor fixing seat 8 to be tested to the clamping support 2, and the positioning is realized through the conical positioning pin 5 and the positioning hole 9 at first, so that the second external spline 76 of the motor spindle 75 of the motor to be tested is ensured to be relatively connected with the first internal spline of the coupler. A proximity sensor is mounted on the clamping bracket 2. After the proximity sensor senses the tested motor fixing seat 8, the hydraulic corner oil cylinder 3 is controlled to rotate and contract, the tested motor fixing seat 8 and the clamping support 2 are fixed, and then the conveying line lifting cylinder 14 drives the speed doubling chain 13 to descend so as to avoid the influence of vibration during testing on the speed doubling chain. And then the dynamometer is started, and the spindle of the tested motor is driven to rotate through the coupler for testing.
The four corners side of the measured motor fixing base 8 bottom is installed with gyro wheel 15 to prevent that the side and cast iron from relying on the strip friction to receive the resistance.
The bottom of the cast iron platform 1 is provided with a shock absorption foot pad 16.
Example 2
On the basis of embodiment 1, in order to prevent the spline of the coupler from colliding with the spline of the motor to cause damage, the following improvements are made:
the coupler 7 comprises a coupler body 71, an elastic structure is arranged inside the right end of the coupler body 71, and a first internal spline is formed on the inner wall of the coupler body; a motor docking barrel 73 is inserted into the right end of the coupling body 71, a first external spline 74 which is matched with the first internal spline is formed at one end of the motor docking barrel 73, and a second internal spline 77 which is matched with a second external spline 76 of a motor spindle 75 of a tested motor is formed at the other end of the motor docking barrel 73. The resilient structure is a belleville spring 78. An end cap 79 engaged with the belleville spring 78 is fixed inside the right end of the coupling body 71.
When the speed-multiplying chain 13 is used, the dynamometer is started to drive the coupler to rotate slowly while the tested motor is conveyed towards the direction of the clamping support 2. When the second male spline 76 of the motor spindle 75 is in butt joint with the second female spline 77, if the butt joint angle of the two splines is incorrect, the belleville spring 78 is compressed at the moment until the second male spline 76 is in butt joint with the second female spline 77 after the coupler 7 rotates to the butt joint angle, so that automatic butt joint with the coupler is completed, and collision damage caused by misalignment of the spline angle can be effectively prevented.
It should be finally noted that the above embodiments are only used for illustrating the technical solutions of the present invention, not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equally without departing from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. The motor counter-dragging test bed is characterized by comprising a cast iron platform (1), wherein a clamping support (2) is fixed on the cast iron platform (1), hydraulic corner oil cylinders (3) are respectively mounted on two sides of the clamping support (2), a positioning through hole (4) is formed in the middle of the clamping support (2), and a conical positioning pin (5) is mounted on the periphery of the positioning through hole (4); a dynamometer fixing frame (6) for fixing a dynamometer is installed on the left side of the clamping support (2), the dynamometer is connected with a bearing box through a torque sensor, and the bearing box is connected with a coupler (7); a conveying structure is arranged on the right side of the clamping support (2), the conveying structure is connected with a lifting mechanism, and an L-shaped tested motor fixing seat (8) is placed on the conveying structure; a positioning hole (9) matched with the conical positioning pin (5) is formed on the tested motor fixing seat (8); positioning plates (10) are fixed on two sides of the top of the bottom plate of the tested motor fixing seat (8); the fixed frame (11) is further fixed on the tested motor fixed seat (8), and the fixed frame (11) is in threaded connection with a fixing bolt (12).
2. A motor-twin-trailed test stand according to claim 1, characterised in that the conveying structure is a double speed chain (13); the lifting mechanism is a conveying line lifting cylinder (14).
3. The motor counter-traction test bed as claimed in claim 1, wherein rollers (15) are mounted on four corner sides of the bottom of the tested motor fixing seat (8).
4. The motor counter-traction test bed as claimed in claim 1, characterized in that the upper and lower parts of both sides of the clamping bracket (2) are provided with hydraulic corner cylinders (3).
5. A motor twin-tractor test bench according to claim 1, characterised in that the bottom of the cast iron platform (1) is fitted with a shock absorbing foot pad (16).
6. The motor counter-dragging test bed according to claim 1, wherein the coupler (7) comprises a coupler body (71), an elastic structure is installed inside the right end of the coupler body (71), and a first internal spline is formed on the inner wall of the coupler body (71); a motor butt joint barrel (73) is inserted into the right end of the coupler body (71), one end of the motor butt joint barrel (73) is provided with a first external spline (74) matched with the first internal spline, and the other end of the motor butt joint barrel (73) is provided with a second internal spline (77) matched with a second external spline (76) of a motor spindle (75) of a tested motor.
7. The motor counter-traction test bed according to claim 6, characterized in that said elastic structure is a belleville spring (78).
8. The motor counter-traction test bed as claimed in claim 6, characterized in that an end cover (79) engaged with the belleville spring (78) is fixed inside the right end of the coupling body (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221571513.4U CN217981757U (en) | 2022-06-22 | 2022-06-22 | Motor is to dragging test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221571513.4U CN217981757U (en) | 2022-06-22 | 2022-06-22 | Motor is to dragging test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217981757U true CN217981757U (en) | 2022-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221571513.4U Active CN217981757U (en) | 2022-06-22 | 2022-06-22 | Motor is to dragging test bench |
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| CN (1) | CN217981757U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116087771A (en) * | 2023-03-21 | 2023-05-09 | 常州中兴华达科技股份有限公司 | Pitch system motor is to dragging experimental apparatus |
| CN117406083A (en) * | 2023-12-12 | 2024-01-16 | 佛山广菱智能科技有限责任公司 | Motor test fixture |
-
2022
- 2022-06-22 CN CN202221571513.4U patent/CN217981757U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116087771A (en) * | 2023-03-21 | 2023-05-09 | 常州中兴华达科技股份有限公司 | Pitch system motor is to dragging experimental apparatus |
| CN117406083A (en) * | 2023-12-12 | 2024-01-16 | 佛山广菱智能科技有限责任公司 | Motor test fixture |
| CN117406083B (en) * | 2023-12-12 | 2024-02-20 | 佛山广菱智能科技有限责任公司 | Motor test fixture |
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