CN217582926U - Coupling structure for motor butt-towing test bed - Google Patents
Coupling structure for motor butt-towing test bed Download PDFInfo
- Publication number
- CN217582926U CN217582926U CN202221571471.4U CN202221571471U CN217582926U CN 217582926 U CN217582926 U CN 217582926U CN 202221571471 U CN202221571471 U CN 202221571471U CN 217582926 U CN217582926 U CN 217582926U
- Authority
- CN
- China
- Prior art keywords
- motor
- spline
- shaft coupling
- butt joint
- test bed
- 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
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model discloses a shaft coupling structure for a motor counter-dragging test bed, which comprises a shaft coupling body, wherein an elastic structure is arranged inside the right end of the shaft coupling body, and a first internal spline is formed on the inner wall of the shaft coupling 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. The utility model discloses can effectively reduce the collision dynamics between the spline when shaft coupling and motor spindle spline angle do not cooperate to the shaft coupling of being convenient for realizes the automatic fit of spline along with the rotation with motor spindle.
Description
Technical Field
The utility model relates to the field of machinary, especially, relate to a motor is to dragging shaft coupling structure for test bench.
Background
After the assembly of driving motor on the new energy automobile is accomplished, need utilize the motor to carry out automatic test to dragging the shaft coupling structure for the test bench before inserting the production line, detect whether the motor performance accords with the designing requirement, but current motor has following problem to dragging the shaft coupling structure for the test bench:
1. the motor is to dragging the conventional structure of shaft coupling structure for test bench to be: dynamometer-torque sensor-bearing box-coupling-tested motor, but the highest rotation speed reaches 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 shaft coupling structure for test bench.
The purpose of the utility model is realized through the following technical scheme:
a coupling structure for a motor counter-dragging test bed comprises a coupling body, wherein an elastic structure is arranged inside the right end of the coupling body, and a first internal spline is formed on the inner wall of the coupling 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 collision strength between the splines when the spline angles of the coupler and the motor spindle are not matched can be reduced, and the coupler and the motor spindle can be automatically matched along with the rotation of the coupler and the motor spindle.
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 a motor drag test stand;
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-absorbing 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 the motor fixing seat 8 to be tested, is firstly positioned through the positioning plate 10 and then is fixed through the 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 bottom of the tested motor fixing seat 8 is provided with rollers 15 to prevent the side from receiving resistance with the cast iron slip by friction.
The bottom of the cast iron platform 1 is provided with a shock-absorbing 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 71; a motor docking barrel 73 is inserted into the right end of the coupling body 71, one end of the motor docking barrel 73 is formed with a first external spline 74 which is matched with the first internal spline, and the other end is formed with a second internal spline 77 which is matched with a second external spline 76 of a motor spindle 75 of a tested motor. The resilient structure is a belleville spring 78. An end cover 79 matched with the belleville spring 78 is fixed inside the right end of the coupling body 71.
When the double-speed chain type motor measurement device is used, when the double-speed chain 13 transports a measured motor to the direction of the clamping support 2, the dynamometer is started to drive the coupler to rotate slowly. When the second external spline 76 of the motor spindle 75 is butted with the second internal spline 77, if the butted angle of the two splines is incorrect, the belleville spring 78 is compressed until the second external spline 76 is butted with the second internal spline 77 after the coupler 7 rotates to be butted with the angle, so that the automatic butt joint with the coupler is completed, and the collision damage caused by the 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 (3)
1. A coupling structure for a motor counter-dragging test bed is characterized by comprising a coupling body (71), wherein an elastic structure is installed inside the right end of the coupling body (71), and a first internal spline is formed on the inner wall of the coupling body; a motor butt joint barrel (73) is inserted into the right end of the coupler body (71), a first external spline (74) matched with the first internal spline is formed at one end of the motor butt joint barrel (73), and a second internal spline (77) 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 butt joint barrel (73).
2. The coupling structure for a motor counter-traction test bed according to claim 1, wherein the elastic structure is a belleville spring (78).
3. The coupling structure for the motor split-drag test bed as claimed in claim 2, wherein an end cap (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 |
|---|---|---|---|
| CN202221571471.4U CN217582926U (en) | 2022-06-22 | 2022-06-22 | Coupling structure for motor butt-towing test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221571471.4U CN217582926U (en) | 2022-06-22 | 2022-06-22 | Coupling structure for motor butt-towing test bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217582926U true CN217582926U (en) | 2022-10-14 |
Family
ID=83532655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221571471.4U Active CN217582926U (en) | 2022-06-22 | 2022-06-22 | Coupling structure for motor butt-towing test bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217582926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115683416A (en) * | 2022-11-10 | 2023-02-03 | 南通市航天机电自动控制有限公司 | Wear-proof dynamometer end shaft and dynamometer |
-
2022
- 2022-06-22 CN CN202221571471.4U patent/CN217582926U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115683416A (en) * | 2022-11-10 | 2023-02-03 | 南通市航天机电自动控制有限公司 | Wear-proof dynamometer end shaft and dynamometer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217981757U (en) | Motor is to dragging test bench | |
| CN217582926U (en) | Coupling structure for motor butt-towing test bed | |
| CN108398262B (en) | Wet friction pair belt row torque test bed and test method | |
| CN109765486B (en) | Large-scale generator load testing method | |
| CN204988717U (en) | Multi -functional operation car axle gear box type test device of synthesizing | |
| US11905998B2 (en) | Transmission shaft automatic connection and disengagement device and test equipment | |
| CN110726503A (en) | Micro-torque real-time automatic testing device | |
| CN104389777B (en) | Lubricating oil pump test device | |
| CN205941010U (en) | New energy automobile power assembly testboard | |
| CN109443802A (en) | A kind of testing equipment of the anti-stagnant ability of used in new energy vehicles drive axle | |
| JP3004181B2 (en) | Gear sound inspection device | |
| CN205300926U (en) | Tight strutting arrangement of high speed train gear box running -in test bench wheel pair axle clamp | |
| CN209992173U (en) | Automobile water pump shaft connection bearing testing machine | |
| CN208171763U (en) | It is a kind of for detecting the device of charging pile charging connector mechanical strength | |
| CN113311330A (en) | Be used for stifled test system of changeing of new forms of energy electric drive power assembly | |
| CN217403659U (en) | Locking dish torsion testing arrangement | |
| CN105537916A (en) | Torsional spring assembling device for automatic car window lifter | |
| CN220154597U (en) | Transmission system and motor dynamic test board | |
| CN218381577U (en) | Automobile shaft part torque detection device | |
| CN217213045U (en) | Upper dragging detection assembly | |
| CN215178607U (en) | Multifunctional test device for transmission shaft | |
| CN217179898U (en) | Novel differential detection equipment | |
| CN111347239B (en) | Semi-axis tooth detects and screws up central screw equipment to tooth | |
| CN220245249U (en) | Steel plate lifting clamp | |
| CN217085203U (en) | Test platform for detecting high-speed motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |