CN210322325U - Electronic parking system test device for reduction gearbox - Google Patents
Electronic parking system test device for reduction gearbox Download PDFInfo
- Publication number
- CN210322325U CN210322325U CN201921670432.8U CN201921670432U CN210322325U CN 210322325 U CN210322325 U CN 210322325U CN 201921670432 U CN201921670432 U CN 201921670432U CN 210322325 U CN210322325 U CN 210322325U
- Authority
- CN
- China
- Prior art keywords
- reduction gearbox
- tested
- parking system
- electronic parking
- testing device
- 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 reducing gear box electron parking system test device relates to electric automobile test technical field. The test device comprises a driving mechanism and a loading mechanism: the driving mechanism is arranged at the input end of the reduction gearbox to be tested and used for driving the reduction gearbox to be tested and an electronic parking system of the reduction gearbox to be tested to operate; the loading mechanism comprises a loading motor and a speed change mechanism which are in transmission connection, the output end of the speed change mechanism is connected with the output shaft of the reduction gearbox to be tested, and the loading mechanism is used for providing load torque for the output end of the reduction gearbox to be tested so as to simulate road load. The test device can complete the operation test of the electronic parking system of the reduction gearbox under the condition of road load without carrying out the whole vehicle test, thereby being convenient for finding out problems and improving the problems in the research and development process and improving the research and development efficiency.
Description
Technical Field
The utility model relates to an electric automobile tests technical field, especially relates to a reducing gear box electron parking system test device.
Background
At present, for pure electric vehicles, a high-speed motor and a reduction gearbox are generally adopted as a power driving system. Among them, as for the parking system provided in the reduction gear box, it is generally provided as an electronic parking system. The system is characterized in that the electronic control unit controls the parking actuating mechanism to complete parking braking.
In the early development stage of the reduction gearbox, the electronic parking system is usually tested after the reduction gearbox is installed on the whole vehicle because the reduction gearbox does not have a loading condition. However, the electronic parking system is also a part of the reduction gearbox, and if a test result of the electronic parking system is in a problem, the reduction gearbox needs to be disassembled to design the electronic parking system again, so that the whole design of the reduction gearbox is inevitably affected, the research and development efficiency is reduced, and even the whole research and development progress of the automobile is delayed.
Based on this, there is a need for a testing apparatus for an electronic parking system of a reduction box, which is used to solve the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a reducing gear box electron parking system test device need not to test the electron parking system of reducing gear box with the help of whole car, improves research and development efficiency.
To achieve the purpose, the utility model adopts the following technical proposal:
a testing device for an electronic parking system of a reduction gearbox comprises:
the driving mechanism is arranged at the input end of the reduction gearbox to be tested and used for driving the reduction gearbox to be tested and the electronic parking system of the reduction gearbox to be tested to operate;
the loading mechanism comprises a loading motor and a speed change mechanism which are in transmission connection, the output end of the speed change mechanism is connected with the output shaft of the reduction gearbox to be tested, and the loading mechanism is used for providing load torque for the output end of the reduction gearbox to be tested so as to simulate road load.
Optionally, the speed change mechanism includes a speed reducer and a gearbox, and the loading motor, the speed reducer and the gearbox are in transmission connection in sequence.
Optionally, the reducer is a worm gear reducer.
Optionally, the testing device for the electronic parking system of the reduction gearbox further comprises a measuring mechanism, and the measuring mechanism is used for measuring test parameters related to the test of the electronic parking system of the reduction gearbox.
Optionally, the measuring mechanism comprises a torque sensor connected to the loading mechanism for measuring the load torque.
Optionally, the measuring mechanism includes an encoder, and the encoder is connected to the output shaft of the reduction gearbox to be measured and used for detecting the torsion angle of the output shaft of the reduction gearbox to be measured.
Optionally, the measuring mechanism further comprises a dial, and the dial is connected with the encoder and used for displaying the torsion angle of the output shaft of the reduction gearbox to be measured.
Optionally, the testing device for the electronic parking system of the reduction gearbox further comprises a test bench, and the test bench is used for installing and fixing the testing device for the electronic parking system of the reduction gearbox.
Optionally, the test bench comprises a reduction gearbox mounting bracket, and the reduction gearbox mounting bracket is connected with the reduction gearbox to be tested and used for mounting and fixing the reduction gearbox to be tested.
Optionally, the output end of the reduction gearbox to be tested is provided with a transmission shaft assembly, one end of the transmission shaft assembly is connected with the output shaft of the reduction gearbox to be tested, and the other end of the transmission shaft assembly is connected with the loading mechanism and used for transmitting the load torque to the output shaft of the reduction gearbox to be tested.
The utility model has the advantages that:
the utility model provides a reducing gear box electron parking system test device has realized the simulation to the road load that the reducing gear box receives through setting up loading mechanism, and then has combined actuating mechanism's setting to realize the simulation to the parking braking of reducing gear box electron parking system to need not to carry out the operation test that whole car was experimental can accomplish reducing gear box electron parking system, in time discover the problem and improve in the convenient research and development in-process, improved research and development efficiency.
Drawings
FIG. 1 is a front view of the testing device of the electronic parking system of the reduction gearbox provided by the present invention;
FIG. 2 is a top view of the testing device of the electronic parking system of the reduction box provided by the present invention;
fig. 3 is a schematic view of a local structure of the testing device of the electronic parking system of the reduction gearbox.
In the figure:
100. a reduction gearbox to be tested; 101. an output shaft of the reduction gearbox to be tested;
1. a drive mechanism; 2. a measuring mechanism; 21. a torque sensor; 22. a first coupling; 23. an encoder; 24. a dial scale; 3. a loading mechanism; 31. loading a motor; 32. a speed reducer; 33. a second coupling; 34. a gearbox; 4. a test bed; 41. the driving mechanism mounting bracket; 42. a reduction gearbox mounting bracket; 421. a vertical mounting plate; 43. an encoder mounting bracket; 44. a torque sensor mounting bracket; 45. a gearbox mounting base; 46. a speed reducer mounting base; 47. a test platform base; 5. a driveshaft assembly; 51. an intermediate connecting member; 52. a drive shaft; 6. a bearing assembly; 61. a bearing; 62. a bearing seat; 7. and a third coupling.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The embodiment provides a testing device for an electronic parking system of a reduction gearbox. As shown in fig. 1 and 2, the testing apparatus includes a driving mechanism 1 and a loading mechanism 3. The driving mechanism 1 is arranged at the input end of the reduction gearbox 100 to be tested and used for driving the reduction gearbox 100 to be tested and the electronic parking system of the reduction gearbox 100 to be tested to operate. Specifically, a drive motor may be employed as the drive mechanism 1. The loading mechanism 3 is arranged at the output end of the reduction gearbox 100 to be tested and is used for providing load torque for the reduction gearbox 100 to be tested so as to simulate road load. The loading mechanism 3 comprises a loading motor 31 and a speed change mechanism which are in transmission connection, and the output end of the speed change mechanism is connected with a reduction gearbox output shaft 101 to be tested which is positioned at the output end of a reduction gearbox 100 to be tested.
When the test device is used for testing the electronic parking system of the reduction gearbox 100 to be tested, the process is as follows:
(1) in this embodiment, the number of the loading mechanisms 3 is set to 1. However, because the differential is integrated in the reduction gearbox of the electric automobile, the output ends of the reduction gearbox are two (correspondingly connected with two automobile wheels), before the test, the inner side of the differential shell in the reduction gearbox 100 to be tested needs to be welded to be dead, so that only one output end of the reduction gearbox 100 to be tested is loaded;
of course, in other embodiments, the two output ends of the reduction gearbox 100 to be tested can be respectively provided with one loading mechanism 3 without welding the inner side of the differential shell;
(2) the reduction gearbox 100 to be tested is driven to run through the driving mechanism 1 so as to simulate the working condition when the reduction gearbox of the electric automobile does not bear road load;
(3) a loading mechanism 3 is used for providing a load torque for the output end of the reduction gearbox 100 to be tested (namely, the reduction gearbox output shaft 101 to be tested) so as to simulate the working condition of the reduction gearbox of the electric automobile when bearing road load;
(4) the driving mechanism 1 drives the electronic parking system of the reduction gearbox 100 to be tested to operate, and executes parking action to test whether the electronic parking system can normally operate;
(5) after the test is completed once, the load torque output by the loading mechanism 3 can be changed, whether the electronic parking system can still normally operate is tested, and the change of the electronic parking system in operation under the action of different load torques is researched.
In the loading mechanism 3, since the rotation speed of the loading motor 31 is high, the directly output torque is small, and the difference between the torque and the actual road load torque that the reduction gearbox 100 to be tested should bear is large, the speed change mechanism is arranged in the loading mechanism 3 in the embodiment. Optionally, the variator includes a retarder 32 and a gearbox 34. Specifically, the loading motor 31, the reducer 32 and the gearbox 34 are in transmission connection in sequence. The reduction gear 32 and the transmission case 34 are connected by a second coupling 33. According to the arrangement, the output rotating speed of the loading mechanism 3 can be reduced through the speed reducer 32, the load torque output by the loading mechanism 3 can be improved, the output rotating speed of the loading mechanism 3 can be further changed through the gearbox 34, the change range of the load torque output by the loading mechanism 3 can be expanded, and therefore simulation of different road loads can be achieved.
In this embodiment, in order to reduce the volume of the loading mechanism 3 as much as possible and provide a large load torque, the reducer 32 is a worm and gear reducer with a compact structure and a large transmission ratio. In addition, a diaphragm coupling is selected as the second coupling 33, which has a strong damping effect, is noiseless, does not require lubrication, and has a small volume.
Alternatively, as shown in fig. 1 and 2, in order to obtain accurate test parameters to facilitate the development of subsequent research and development work, a measuring mechanism 2 connected to the reduction gearbox 100 to be tested may be provided. In the present embodiment, the measuring mechanism 2 includes a torque sensor 21, an encoder 23, and a dial 24.
The torque sensor 21 is used for measuring the load torque output by the loading mechanism 3, and is of a flange structure, one end of the torque sensor is connected with the output end of the gearbox 34 through the third coupler 7, and the other end of the torque sensor is connected with the output shaft 101 of the reduction gearbox to be measured through the first coupler 22. After a specific load torque value is obtained through the torque sensor 21, the load torque can be accurately adjusted according to the road load value borne by the reduction gearbox in the actual running process of the automobile, so that the load torque is closer to the real road load. Specifically, the actual road load on the reduction gearbox of the automobile can be obtained by looking up the data. Of course, a plurality of sets of tests can be performed by changing the value of the load torque, so as to explore the influence of different load torques on the operation of the electronic parking system of the reduction gearbox 100 to be tested. In the present embodiment, the first coupling 22 and the third coupling 7 are each provided as a diaphragm coupling, as in the second coupling 33.
After the electronic parking system executes the parking action, the output shaft 101 of the reduction gearbox to be tested is twisted by a certain angle. In order to search the relationship between the load torque and the torsion angle, in this embodiment, an encoder 23 connected to the output shaft 101 of the reduction gearbox to be tested is provided to detect the torsion angle of the output shaft 101 of the reduction gearbox to be tested. In order to read the value of the torsion angle, a dial 24 connected with the encoder 23 is further provided in the present embodiment for displaying the torsion angle of the output shaft 101 of the reduction gearbox to be tested.
Of course, when the measuring mechanism 2 is provided in other embodiments, one of the torque sensor 21 and the encoder 23 may be provided selectively according to the test requirements, or other measuring elements may be provided to measure other test parameters.
Alternatively, as shown in fig. 1 and 2, a test stand 4 may be provided to facilitate mounting and fixing of the reduction gearbox electronic parking system test apparatus. The test bench 4 comprises a driving mechanism mounting bracket 41, a reduction gearbox mounting bracket 42, an encoder mounting bracket 43, a torque sensor mounting bracket 44, a gearbox mounting base 45 and a reducer mounting base 46, and is respectively used for mounting and fixing the driving mechanism 1, the reduction gearbox 100 to be tested, the encoder 23, the torque sensor 21, the gearbox 34 and the reducer 32, and providing a certain damping effect when the test device operates. Further, a test platform base 47 may be provided to connect and support all of the mounting brackets and mounting bases described above, so that the test stand 4 is an integral unit. Of course, a certain number of universal wheels may be provided below the test platform base 47 to make the test bed 4 a mobile test bed for moving the test apparatus.
For the installation of the reduction gearbox 100 to be tested, in order to connect the reduction gearbox 100 to be tested with the loading mechanism 3, as shown in fig. 3, a transmission shaft assembly 5 may be arranged at the output end of the reduction gearbox 100 to be tested. The drive shaft assembly 5 includes an intermediate connecting member 51 and a drive shaft 52 connected to each other. The middle connecting piece 51 is connected with the output shaft 101 of the reduction gearbox to be tested, and the transmission shaft 52 is connected with the output end of the loading mechanism 3. When the transmission shaft assembly 5 is driven by the loading mechanism 3 to rotate, the load torque output by the loading mechanism 3 can be transmitted to the output shaft 101 of the reduction gearbox to be tested. In this embodiment, the intermediate connector 51 and the transmission shaft 52 are fixed by screw connection.
Further, since the transmission shaft 52 and the reduction gearbox output shaft 101 to be tested rotate synchronously, the encoder 23 and the dial 24 can be mounted on the transmission shaft 52.
Optionally, to facilitate installation of the driveshaft assembly 5, a bearing assembly 6 may be provided, as shown in FIG. 3. The bearing assembly 6 includes a bearing 61 and a bearing housing 62, and the bearing 61 is disposed opposite to the bearing housing 62. Specifically, the bearing assembly 6 may be mounted on the reduction gearbox mounting bracket 42 and the bearing housing 62 secured by fasteners such as screws. Then, the transmission shaft 52 is installed in the bearing 61, and the intermediate connecting member 51 is connected to the transmission shaft 52, so that the transmission shaft assembly 5 can be installed.
In addition, as shown in fig. 3, in the present embodiment, the reduction gearbox 100 to be tested is selectively covered on the vertical mounting plate 421 in the reduction gearbox mounting bracket 42. Therefore, the output end side of the reduction gearbox 100 to be tested can be sealed by the vertical mounting plate 421, the transmission shaft assembly 5 and the bearing assembly 6 at the same time, and oil in the reduction gearbox 100 to be tested is prevented from leaking from the side.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides a reducing gear box electron parking system test device which characterized in that includes:
the driving mechanism (1) is arranged at the input end of the reduction gearbox (100) to be tested and used for driving the reduction gearbox (100) to be tested and an electronic parking system of the reduction gearbox (100) to be tested to operate;
the loading mechanism (3), the loading mechanism (3) includes loading motor (31) and the speed change mechanism of transmission connection, the output of speed change mechanism is connected with the reducing gear box output shaft (101) that awaits measuring, loading mechanism (3) are used for the output of the reducing gear box (100) that awaits measuring provides the load moment of torsion in order to simulate road load.
2. The testing device for the electronic parking system of the reduction gearbox according to claim 1, wherein the speed change mechanism comprises a speed reducer (32) and a gearbox (34), and the loading motor (31), the speed reducer (32) and the gearbox (34) are in transmission connection in sequence.
3. The testing device for the electronic parking system of the reduction gearbox according to claim 2, characterized in that the reducer (32) is a worm gear reducer.
4. The testing device for the electronic parking system of the reduction gearbox according to claim 1, characterized by further comprising a measuring mechanism (2), wherein the measuring mechanism (2) is used for measuring test parameters related to the testing of the electronic parking system of the reduction gearbox.
5. A testing device for an electronic parking system of a reduction gearbox according to claim 4, characterized in that the measuring mechanism (2) comprises a torque sensor (21), the torque sensor (21) being connected with the loading mechanism (3) for measuring the load torque.
6. The testing device of the electronic parking system of the reduction gearbox according to claim 4, wherein the measuring mechanism (2) comprises an encoder (23), and the encoder (23) is connected with the output shaft (101) of the reduction gearbox to be tested and used for detecting the torsion angle of the output shaft (101) of the reduction gearbox to be tested.
7. The testing device for the electronic parking system of the reduction gearbox according to claim 6, wherein the measuring mechanism (2) further comprises a dial (24), and the dial (24) is connected with the encoder (23) and used for displaying the torsion angle of the output shaft (101) of the reduction gearbox to be tested.
8. The testing device of the electronic parking system of the reduction gearbox according to claim 1, characterized by further comprising a test bench (4), wherein the test bench (4) is used for installing and fixing the testing device of the electronic parking system of the reduction gearbox.
9. The testing device of the electronic parking system of the reduction gearbox according to claim 8, wherein the test bench (4) comprises a reduction gearbox mounting bracket (42), and the reduction gearbox mounting bracket (42) is connected with the reduction gearbox (100) to be tested and used for mounting and fixing the reduction gearbox (100) to be tested.
10. The testing device for the electronic parking system of the reduction gearbox according to claim 1, wherein a transmission shaft assembly (5) is arranged at the output end of the reduction gearbox (100) to be tested, one end of the transmission shaft assembly (5) is connected with the output shaft (101) of the reduction gearbox to be tested, and the other end of the transmission shaft assembly is connected with the loading mechanism (3) and used for transmitting the load torque to the output shaft (101) of the reduction gearbox to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921670432.8U CN210322325U (en) | 2019-10-08 | 2019-10-08 | Electronic parking system test device for reduction gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921670432.8U CN210322325U (en) | 2019-10-08 | 2019-10-08 | Electronic parking system test device for reduction gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210322325U true CN210322325U (en) | 2020-04-14 |
Family
ID=70133669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921670432.8U Active CN210322325U (en) | 2019-10-08 | 2019-10-08 | Electronic parking system test device for reduction gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210322325U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982537A (en) * | 2020-08-25 | 2020-11-24 | 捷科智能装备(苏州)有限公司 | Method and device for detecting parking mechanism of automobile driving unit |
| CN113607422A (en) * | 2021-06-22 | 2021-11-05 | 联合轲麟新能源科技(济宁)有限公司 | Testing device and testing method for multi-gear electric drive assembly of new energy vehicle |
-
2019
- 2019-10-08 CN CN201921670432.8U patent/CN210322325U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982537A (en) * | 2020-08-25 | 2020-11-24 | 捷科智能装备(苏州)有限公司 | Method and device for detecting parking mechanism of automobile driving unit |
| CN113607422A (en) * | 2021-06-22 | 2021-11-05 | 联合轲麟新能源科技(济宁)有限公司 | Testing device and testing method for multi-gear electric drive assembly of new energy vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102937699B (en) | Test system for high-frequency torque ripples of distributed driving wheel hub motor | |
| CN210322325U (en) | Electronic parking system test device for reduction gearbox | |
| CN105372032A (en) | Device, system and method of vibration performance integration testing of transmission shaft and rear axle assembly | |
| CN106596120B (en) | A kind of automobile tandem axle experimental rig | |
| CN111380698A (en) | Be used for new energy automobile to drive power assembly to dragging test bench structure | |
| CN108332978A (en) | A kind of tension-torsion fatigue test board for Automobile flywheel disk | |
| CN105699077B (en) | Forerunner's automobile mechanical gear shifting box Transmission Error Measuring testing stand and integrated test facility | |
| CN205317434U (en) | Transmission shaft and rear axle assembly vibration performance integrated test device and test system | |
| CN205538211U (en) | Forerunner automobile machinery gearbox transmission error test bench | |
| CN110793690B (en) | Method for testing motor efficiency on hybrid power assembly rack | |
| JP3444163B2 (en) | Engine and drive train performance testing equipment and torque detection equipment | |
| CN112781880B (en) | Starting jitter testing method for electric drive assembly | |
| CN111175058A (en) | Novel test bed for electric power steering system | |
| CN110686894A (en) | Transmission lubrication test device | |
| CN207197812U (en) | A kind of mechanical transmission contact (area) pattern testing stand | |
| CN202159455U (en) | Integrated fault diagnosis experiment table for car power transmission system | |
| CN113092107B (en) | Test bench for oil-electricity hybrid power gearbox | |
| CN209820769U (en) | New forms of energy pure electric automobile electric drive assembly detection device | |
| CN210802922U (en) | Endurance test experiment bench for single dynamometer double-output-shaft electric drive system | |
| CN211553326U (en) | Automobile steering performance test bench | |
| CN219369152U (en) | Vehicle coupling testing device with steering device | |
| CN208012874U (en) | A kind of Double-outputting speed change box list measurement of power bracket loading test platform | |
| CN106017891A (en) | Propeller dynamic characteristic testing device | |
| CN111595579A (en) | Transmission error test system of gearbox | |
| CN2823991Y (en) | Steering parameter tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |