CN222733827U - Durable test system of reduction gearbox is driven to electricity - Google Patents
Durable test system of reduction gearbox is driven to electricity Download PDFInfo
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- CN222733827U CN222733827U CN202421442590.9U CN202421442590U CN222733827U CN 222733827 U CN222733827 U CN 222733827U CN 202421442590 U CN202421442590 U CN 202421442590U CN 222733827 U CN222733827 U CN 222733827U
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- 238000012360 testing method Methods 0.000 title claims abstract description 144
- 230000009467 reduction Effects 0.000 title claims abstract description 31
- 230000005611 electricity Effects 0.000 title description 2
- 230000008878 coupling Effects 0.000 claims abstract description 13
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
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Abstract
本实用新型公开了一种电驱减速箱耐久测试系统。本实用新型的技术方案是：包括机台，所述机台上设置有驱动电机、陪试件、测试件、试件安装支架、低速轴系、高速轴系及机械加载装置，所述驱动电机通过驱动电机联轴器及连接短轴与陪试件连接，所述连接短轴上设置有电机扭矩传感器，所述低速轴系与高速轴系设置在陪试件与测试件之间，所述试件安装支架为支撑固定陪试件与测试件的三轴可调式支撑台架，所述机械加载装置设置在低速轴系上。本实用新型提供的方案能够精确且稳定的对电驱减速箱进行耐久测试。
The utility model discloses an electric drive reduction box durability test system. The technical solution of the utility model is: including a machine platform, on which a driving motor, a test piece, a test piece, a test piece mounting bracket, a low-speed shaft system, a high-speed shaft system and a mechanical loading device are arranged. The driving motor is connected to the test piece through a driving motor coupling and a connecting short shaft, and a motor torque sensor is arranged on the connecting short shaft. The low-speed shaft system and the high-speed shaft system are arranged between the test piece and the test piece. The test piece mounting bracket is a three-axis adjustable support stand for supporting and fixing the test piece and the test piece, and the mechanical loading device is arranged on the low-speed shaft system. The solution provided by the utility model can accurately and stably perform durability tests on electric drive reduction boxes.
Description
Technical Field
The utility model relates to the technical field of electric drive reduction gearbox testing, in particular to a durability testing system of an electric drive reduction gearbox.
Background
The electric drive reduction gearbox is a core part of a new energy automobile transmission system, the durability of the electric drive reduction gearbox is very important to the quality and safety of a vehicle, and the problem of incomplete test and low precision of a durability test scheme aiming at the electric drive reduction gearbox or a gearbox in the prior art exists.
Disclosure of utility model
Aiming at the defects existing in the prior art, the main purpose of the utility model is to provide the durability test system of the electric drive reduction gearbox, which can accurately and stably test the durability of the electric drive reduction gearbox.
In order to achieve the above purpose, the technical scheme is that the durable testing system of the electric drive reduction gearbox comprises a machine table, wherein a driving motor, a test piece mounting bracket, a low-speed shafting, a high-speed shafting and a mechanical loading device are arranged on the machine table, the driving motor is connected with the test piece through a driving motor coupler and a connecting short shaft, a motor torque sensor is arranged on the connecting short shaft, the low-speed shafting and the high-speed shafting are arranged between the test piece and the test piece, the test piece mounting bracket is a triaxial adjustable supporting rack for supporting and fixing the test piece and the test piece, and the mechanical loading device is arranged on the low-speed shafting.
Preferably, the low-speed shafting comprises a test piece accompanying low-speed connecting shaft connected with the test piece and a test piece low-speed connecting shaft connected with the test piece, the test piece accompanying low-speed connecting shaft is connected with the test piece low-speed connecting shaft through a low-speed coupler, and a low-speed torque sensor is arranged on the test piece low-speed connecting shaft.
Preferably, the mechanical loading device comprises a force arm sleeved and fixed on the low-speed coupler, and the force arm is vertically connected with a hanging scaffold capable of placing a plurality of weights.
Preferably, the high-speed shafting comprises a test piece accompanying high-speed connecting shaft connected with the test piece and a test piece high-speed connecting shaft connected with the test piece, the test piece accompanying high-speed connecting shaft is connected with a test piece accompanying high-speed coupler, the test piece accompanying high-speed connecting shaft is connected with the test piece high-speed coupler, and the test piece accompanying high-speed coupler and the test piece high-speed coupler are jointly connected with a high-speed torque sensor.
Preferably, a protective cover capable of covering the low-speed shaft system and the high-speed shaft system is arranged on the machine.
Compared with the prior art, the mechanical closed power flow test system has the advantages that the mechanical closed power flow test system is used for endurance test of the performance of the electric drive reduction gearbox, the electric drive reduction gearbox is loaded with moment, and the actual load of the electric drive reduction gearbox is simulated. The low-speed shafting and the high-speed shafting are designed to test the low-speed performance and the high-speed performance of the test piece respectively, and the test piece can be accurately installed and fixed through the triaxial adjustable support rack, so that the test precision is ensured. The whole system applies mechanical torque through the driving motor, when the low-speed performance needs to be tested, the driving motor is a low-speed end driving motor, the low-speed shaft system is driven to operate, when the high-speed performance needs to be tested, the driving motor is a high-speed end driving motor, the high-speed shaft system is driven to operate, and the accuracy of the test is ensured by independent test. The mechanical loading device is arranged on a low-speed shaft system with low inertia and high torque and is used for maintaining torque force when the shaft of the low-speed shaft system is fixed, so that the connecting effect is ensured. The motor torque sensor is used for measuring the torque of the mechanical closed system supplied by the driving motor to judge the friction loss of the sample gear, the service life data of the electric drive reduction gearbox and the loss data of the electric drive reduction gearbox can be collected through the test system, and the SN curve and Weibull curve of the gear can be deduced for establishing a gear fatigue failure model.
Drawings
FIG. 1 is a schematic diagram of a durability test system for an electrically driven reduction gearbox according to the present utility model;
FIG. 2 is a schematic diagram of a durability test system for an electrically driven reduction gearbox according to the present utility model;
Fig. 3 is a schematic structural view of a test piece mounting bracket of the durability test system of the electric drive reduction gearbox.
In the figure, 1, a machine table, 2, a driving motor, 3, a test piece, 4, a test piece, 5, a test piece mounting bracket, 6, a low-speed shaft system, 7, a high-speed shaft system, 8, a mechanical loading device, 9, a driving motor coupler, 10, a connecting short shaft, 11, a test piece low-speed connecting shaft, 12, a test piece low-speed connecting shaft, 13, a low-speed torque sensor, 14, a force arm, 15, a hanging scaffold, 16, weights, 17, a test piece high-speed connecting shaft, 19, a test piece high-speed connecting shaft, 20, a test piece high-speed coupler, 21, a test piece high-speed coupler, 22, a high-speed torque sensor, 23, a motor torque sensor and 24, a base.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1, an electric drive reduction gearbox endurance test system comprises a machine table 1, wherein a driving motor 2, a test piece 3, a test piece 4, a test piece mounting bracket 5, a low-speed shafting 6, a high-speed shafting 7 and a mechanical loading device 8 are arranged on the machine table 1, the driving motor 2 is connected with the test piece 3 through a driving motor coupler 9 and a connecting short shaft 10, a motor torque sensor 23 is arranged on the connecting short shaft 10, the low-speed shafting 6 and the high-speed shafting 7 are arranged between the test piece 3 and the test piece 4, the test piece mounting bracket 5 is a triaxial adjustable support table for supporting and fixing the test piece 3 and the test piece 4, and the mechanical loading device 8 is arranged on the low-speed shafting 6.
The scheme is that the mechanical closed power flow test system is used for endurance test of the performance of the electric drive reduction gearbox, loads moment on the electric drive reduction gearbox and simulates actual load of the electric drive reduction gearbox. The low-speed shafting 6 and the high-speed shafting 7 are designed to test the low-speed performance and the high-speed performance of the test piece 4 respectively, and the test piece 3 and the test piece 4 can be accurately installed and fixed through the triaxial adjustable support rack, so that the test precision is ensured. The whole system applies mechanical torque through the driving motor 2, when the low-speed performance needs to be tested, the driving motor 2 is a low-speed end driving motor 2, the low-speed shaft system 6 is driven to operate, when the high-speed performance needs to be tested, the driving motor 2 is a high-speed end driving motor 2, the high-speed shaft system 7 is driven to operate, and the accuracy of the test is ensured by independent test. The mechanical loading device 8 is arranged on the low-speed shafting 6 with low inertia and high torque and is used for maintaining torque force when the shaft of the low-speed shafting 6 is fixed, so that the connecting effect is ensured. The motor torque sensor 23 is used for measuring how much torque of the mechanical closed system is supplied by the driving motor 2 to judge the friction loss of the sample gear, through the testing system, the service life data of the electric drive reduction gearbox and the loss data of the electric drive reduction gearbox can be collected, and the SN curve and Weibull curve of the gear can be deduced for establishing a gear fatigue failure model.
The structure of the three-axis adjustable support rack comprises a base 24 and an adjusting mechanism in three directions of XYZ axes, and the test piece 3 and the test piece 4 can be accurately adjusted and fixed.
Preferably, the low-speed shafting 6 comprises a test piece low-speed connecting shaft 11 connected with the test piece 3 and a test piece low-speed connecting shaft 12 connected with the test piece 4, the test piece low-speed connecting shaft 11 is connected with the test piece low-speed connecting shaft 12 through a low-speed coupling, and a low-speed torque sensor 13 is arranged on the test piece low-speed connecting shaft 12.
Aiming at the low-speed shafting 6 with large inertia and large torque, the test piece 3 and the test piece 4 are connected with the rotating disc through the test piece low-speed connecting shaft 11 and the test piece low-speed connecting shaft 12. The low-speed shaft system comprises a low-speed coupling and a low-speed torque sensor 13, wherein the low-speed torque sensor 13 is used for measuring the torque exerted on the low-speed shaft system 6 by the mechanical loading device 8. In addition, the lengths of the test piece low-speed connecting shaft 12 and the test piece low-speed connecting shaft 11 can be different according to the different wheel tracks.
Preferably, the mechanical loading device 8 comprises a force arm 14 sleeved and fixed on the low-speed coupling, and the force arm 14 is vertically connected with a hanging scaffold 15 capable of placing a plurality of weights 16.
The mechanical loading device 8 can adjust the torque exerted on the low-speed shafting 6 according to the different setting weights 16.
Preferably, the high-speed shafting 7 comprises a test piece high-speed connecting shaft 17 connected with the test piece 3 and a test piece high-speed connecting shaft 19 connected with the test piece 4, the test piece high-speed connecting shaft 17 is connected with a test piece high-speed coupler 20, the test piece high-speed connecting shaft 19 is connected with a test piece high-speed coupler 21, and the test piece high-speed coupler 20 and the test piece high-speed coupler 21 are jointly connected with a high-speed torque sensor 22.
Aiming at the high-speed shafting 7 with low inertia and small torque, the test piece 3 and the test piece 4 are connected with the rotating disc through the test piece high-speed connecting shaft 17 and the test piece high-speed connecting shaft 19. The high-speed shaft system includes two high-speed couplings and a high-speed torque sensor 22 connected to the two high-speed couplings, and the high-speed torque sensor 22 is capable of. In addition, the lengths of the test piece high-speed connecting shaft 19 and the test piece high-speed connecting shaft 17 can be different according to the different wheel tracks.
Preferably, the motor torque sensor 23 is provided on the connecting stub shaft 10. The motor torque sensor 23 is used to measure how much torque the drive motor 2 is supplying to the mechanical closure system to determine the loss of sample gear friction.
Preferably, the machine 1 is provided with a protective cover capable of covering the low-speed shaft system 6 and the high-speed shaft system 7. The protection cover can seal the low-speed shafting 6 and the high-speed shafting 7, and the purpose of protecting equipment and operators is achieved.
The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421442590.9U CN222733827U (en) | 2024-06-24 | 2024-06-24 | Durable test system of reduction gearbox is driven to electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421442590.9U CN222733827U (en) | 2024-06-24 | 2024-06-24 | Durable test system of reduction gearbox is driven to electricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222733827U true CN222733827U (en) | 2025-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421442590.9U Active CN222733827U (en) | 2024-06-24 | 2024-06-24 | Durable test system of reduction gearbox is driven to electricity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222733827U (en) |
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2024
- 2024-06-24 CN CN202421442590.9U patent/CN222733827U/en active Active
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