CN212321066U - Electronic limited slip differential test bench - Google Patents
Electronic limited slip differential test bench Download PDFInfo
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- CN212321066U CN212321066U CN202020582186.7U CN202020582186U CN212321066U CN 212321066 U CN212321066 U CN 212321066U CN 202020582186 U CN202020582186 U CN 202020582186U CN 212321066 U CN212321066 U CN 212321066U
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Abstract
The utility model discloses an electronic limited slip differential test bench, which comprises a drive end bench, two loading end benches and a test end bench; the driving end rack comprises a servo motor, a gearbox connected with the servo motor, a driving end torque and rotating speed sensor connected with the gearbox, and a driving end universal coupling connected with the driving end torque and rotating speed sensor through a driving end bearing seat; the loading end rack comprises a magnetic powder brake, a loading end torque and speed sensor connected with the magnetic powder brake, and a loading end universal coupling connected with the loading end torque and speed sensor through a loading end bearing seat. Through adjusting the motor rotating speed of the servo frame at the driving end and the loading torque of the magnetic powder brake at the loading end, the rotating speed of the servo motor and the torque of the magnetic powder brake can be changed rapidly so as to simulate different road conditions, and therefore, the performance test of the electronic limited slip differential under the driving condition of multiple road conditions is completed.
Description
Technical Field
The utility model relates to an automobile parts tests technical field, concretely relates to electron limited slip differential mechanism test bench.
Background
When the adhesive force of one side wheel of the traditional differential is small, the phenomenon that the rotating speed of the side wheel with small adhesive force is large and the other side wheel does not rotate can occur. The limited slip differential is an improved differential which works to ensure normal running performance when the difference value of the rotating speeds of two wheels is larger than a certain value due to different load factors of driving wheels at two sides. The limited slip differential generally adopts a method of increasing internal friction torque, namely, uneven distribution of driving torque is realized between a left driving wheel and a right driving wheel, so that the driving wheel at the side with a high adhesion coefficient can obtain larger adhesion force than the driving wheel at the side with a low adhesion coefficient, thereby improving the adhesion capability of a rear wheel driving vehicle on a complex road surface and realizing normal running of the vehicle.
In order to test the slip limiting effect of a designed electronic differential, a suitable test stand is required. At present, most of test racks of the differential mechanism are endurance test detection equipment consisting of a driving end and two loading ends, and performance detection cannot be carried out on the limited slip differential mechanism, namely, the load moment of left and right half shafts of the differential mechanism is rapidly changed, and road condition simulation is carried out.
Disclosure of Invention
The utility model aims at providing an utilize servo motor and magnetic particle brake to give the electron limited slip differential mechanism test bench of limited slip differential mechanism drive and load to the defect that current automobile parts test bench can't carry out the complete ability to electron limited slip differential mechanism and detect.
In order to realize the purpose, the utility model relates to an electronic limited slip differential test bench, which comprises a drive end bench, two loading end benches and a test end bench; the driving end rack comprises a servo motor, a gearbox connected with the servo motor, a driving end torque and rotating speed sensor connected with the gearbox, and a driving end universal coupling connected with the driving end torque and rotating speed sensor through a driving end bearing seat;
the loading end rack comprises a magnetic powder brake, a loading end torque and speed sensor connected with the magnetic powder brake, and a loading end universal coupling connected with the loading end torque and speed sensor through a loading end bearing seat;
and the universal coupling at the driving end of the driving end rack is connected with an input shaft of a tested main reducer on the test end rack, and the universal couplings at the loading ends of the two loading end racks are respectively connected with two output shafts of the tested main reducer on the test end rack.
Furthermore, the servo motor is connected with the gearbox through a first coupling, the gearbox is connected with a second coupling through a first flange plate, one end of the drive end torque and speed sensor is connected with the second coupling, the other end of the drive end torque and speed sensor is connected with a third coupling, the third coupling is connected with a drive end bearing seat, and the drive end bearing seat is connected with the drive end universal coupling through a second flange plate.
Further, the drive end rack further comprises a drive end base, the servo motor is installed on the drive end base through a servo motor support, the gearbox is installed on the drive end base through a gearbox support, the drive end torque and rotation speed sensor, the third coupler and the drive end bearing seat are installed on the drive end base through the drive end support, and a sensor cushion block is arranged at the bottom of the drive end torque and rotation speed sensor.
Furthermore, the magnetic powder brake is connected with one end of a loading end torque and speed sensor through a fourth coupler, the other end of the loading end torque and speed sensor is connected with a loading end bearing seat through a fifth coupler, and the loading end bearing seat is connected with a loading end universal coupler through a third flange plate.
Further, the loading end rack further comprises a loading end base, the magnetic powder brake is installed on the loading end base through a magnetic powder brake support, the loading end torque and speed sensor, the fifth coupler and the loading end bearing seat are installed on the loading end base through a loading end support, and a sensor cushion block is arranged at the bottom of the loading end torque and speed sensor.
Further, the test end rack comprises a test end base and a main reducer support used for installing a tested main reducer, and the main reducer support is fixed on the test end base.
Compared with the prior art, the utility model has the advantages of it is following: the utility model discloses electron limited slip differential test bench through the loading moment of adjusting drive end platform servo motor rotational speed and loading end platform frame magnetic particle brake, thereby can change the different road conditions of servo motor rotational speed of quick change and magnetic particle brake moment simulation, borrow this and accomplish the capability test of electron limited slip differential under multichannel condition driving condition. Therefore, the utility model discloses can be through changing differential mechanism input shaft rotational speed and output half axle load torque, and then detect limited slip differential torque distribution and limited slip performance, realize electronic limited slip differential part capability test and part tactics test from this.
Drawings
FIG. 1 is a schematic diagram of the structure of a driving end rack of an electronic limited slip differential test rack of the present invention;
FIG. 2 is a structural diagram of a loading end rack of the electronic limited slip differential test rack of the present invention;
FIG. 3 is the utility model discloses electron limited slip differential test bench test end rack structure sketch map.
Wherein: the device comprises a driving end rack 10, a servo motor 101, a first coupler 102, a gearbox 103, a first flange 104, a second coupler 105, a driving end torque and rotating speed sensor 106, a driving end bearing seat 107, a second flange 108, a driving end support 109, a driving end base 110, a gearbox support 111, a servo motor support 112, a third coupler 113 and a driving end universal coupler 114;
the device comprises a loading end rack 20, a magnetic powder brake 21, a fourth coupler 202, a loading end torque and rotating speed sensor 203, a fifth coupler 204, a loading end bearing seat 205, a third flange plate 206, a loading end universal coupler 207, a loading end base 208 and a loading end bracket 209;
a test end bench 30, a test end base 31 and a main reducer bracket 32;
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
The utility model discloses electron limited slip differential test bench, including drive end rack 10, two loading end racks 20 and test end rack 30. As shown in fig. 1, the driving end rack 10 includes a servo motor 101, a transmission case 103 connected to the servo motor 101 through a first coupling 102, a second coupling 105 connected to the transmission case 103 through a first flange 104, a driving end torque and speed sensor 106 connected to the second coupling 105 at one end, a third coupling 113 connected to the other end of the driving end torque and speed sensor 106, a driving end bearing block 107 connected to the third coupling 113, and a driving end universal coupling 114 connected to the driving end bearing block 107 through a second flange 108, and a driving end base 110, the servo motor 101 is mounted on the driving end base 110 through a servo motor bracket 112, the transmission case 103 is mounted on the driving end base 110 through a transmission case bracket 111, the driving end torque and speed sensor 106, the third coupling 113, and the driving end bearing block 107 are mounted on the driving end base 110 through a driving end bracket 109, and the bottom of the driving end torque and rotating speed sensor 106 is provided with a sensor cushion block 40.
As shown in fig. 2, each loading end gantry 20 includes a magnetic powder brake 21, a fourth coupler 202 connected to the magnetic powder brake 21, a loading end torque and rotation speed sensor 203 having one end connected to the fourth coupler 202, a fifth coupler 204 connected to the other end of the loading end torque and rotation speed sensor 203, a loading end bearing block 205 connected to the fifth coupler 204, and a loading end universal coupling 207 connected to the loading end bearing block 205 through a third flange 206, and a loading end base 208, the magnetic powder brake 201 is mounted on the loading end base 208 through a magnetic powder brake bracket 210, the loading end torque and rotation speed sensor 203, the fifth coupler 204, and the loading end bearing block 205 are mounted on the loading end base 208 through a loading end bracket 209, and a sensor pad 40 is disposed at the bottom of the loading end torque and rotation speed sensor 203.
As shown in fig. 3, the test end stand 30 includes a test end base 31 and a final drive bracket 32 for mounting a final drive 50 to be tested, and the final drive bracket 32 is fixed to the test end base 31. The driving-end universal coupling 114 of the driving-end gantry 10 is connected to the input shaft of the main reducer 50 to be tested through a flange, and similarly, the loading-end universal couplings 207 of the two loading-end gantries 20 are respectively connected to the two output shafts of the main reducer 50 to be tested through flanges.
In this embodiment, the servo motor is an ac servo motor, the coupling is a quincunx elastic coupling, and the universal coupling is a cross-axle type universal coupling.
The utility model discloses electron limited slip differential test bench through the loading moment of adjusting drive end platform servo motor rotational speed and loading end platform frame magnetic particle brake, thereby can change the different road conditions of servo motor rotational speed of quick change and magnetic particle brake moment simulation, borrow this and accomplish the capability test of electron limited slip differential under multichannel condition driving condition. Therefore, the utility model discloses can be through changing differential mechanism input shaft rotational speed and output half axle load torque, and then detect limited slip differential torque distribution and limited slip performance, realize electronic limited slip differential part capability test and part tactics test from this.
Claims (6)
1. An electronic limited slip differential test bench comprises a drive end bench, two loading end benches and a test end bench; the method is characterized in that: the driving end rack comprises a servo motor, a gearbox connected with the servo motor, a driving end torque and rotating speed sensor connected with the gearbox, and a driving end universal coupling connected with the driving end torque and rotating speed sensor through a driving end bearing seat;
the loading end rack comprises a magnetic powder brake, a loading end torque and speed sensor connected with the magnetic powder brake, and a loading end universal coupling connected with the loading end torque and speed sensor through a loading end bearing seat;
and the universal coupling at the driving end of the driving end rack is connected with an input shaft of a tested main reducer on the test end rack, and the universal couplings at the loading ends of the two loading end racks are respectively connected with two output shafts of the tested main reducer on the test end rack.
2. The electronic limited slip differential test bed according to claim 1, wherein: the servo motor is connected with the gearbox through a first coupling, the gearbox is connected with a second coupling through a first flange plate, one end of the drive end torque and rotation speed sensor is connected with the second coupling, the other end of the drive end torque and rotation speed sensor is connected with a third coupling, the third coupling is connected with a drive end bearing seat, and the drive end bearing seat is connected with the drive end universal coupling through a second flange plate.
3. The electronic limited slip differential test bed according to claim 2, wherein: the driving end rack further comprises a driving end base, the servo motor is installed on the driving end base through a servo motor support, the gearbox is installed on the driving end base through a gearbox support, the driving end torque and rotation speed sensor, the third coupler and the driving end bearing seat are installed on the driving end base through the driving end support, and a sensor cushion block is arranged at the bottom of the driving end torque and rotation speed sensor.
4. The electronic limited slip differential test bed according to claim 1, wherein: the magnetic powder brake is connected with one end of a loading end torque and speed sensor through a fourth coupler, the other end of the loading end torque and speed sensor is connected with a loading end bearing seat through a fifth coupler, and the loading end bearing seat is connected with a loading end universal coupler through a third flange plate.
5. The electronic limited slip differential test bed according to claim 4, wherein: the loading end rack further comprises a loading end base, the magnetic powder brake is installed on the loading end base through a magnetic powder brake support, the loading end torque and speed sensor, the fifth coupler and the loading end bearing seat are installed on the loading end base through a loading end support, and a sensor cushion block is arranged at the bottom of the loading end torque and speed sensor.
6. The electronic limited slip differential test bed according to claim 1, wherein: the test end rack comprises a test end base and a main reducer support used for installing a tested main reducer, and the main reducer support is fixed on the test end base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020582186.7U CN212321066U (en) | 2020-04-19 | 2020-04-19 | Electronic limited slip differential test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020582186.7U CN212321066U (en) | 2020-04-19 | 2020-04-19 | Electronic limited slip differential test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212321066U true CN212321066U (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020582186.7U Active CN212321066U (en) | 2020-04-19 | 2020-04-19 | Electronic limited slip differential test bench |
Country Status (1)
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|---|---|
| CN (1) | CN212321066U (en) |
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2020
- 2020-04-19 CN CN202020582186.7U patent/CN212321066U/en active Active
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