Testing device for testing automobile hub reduction gear assembly

Abstract

In order to solve the problems of low testing efficiency, inaccurate experimental data and the like of a hub reduction gear assembly, the utility model provides an automobile hub reduction gear assembly testing device, which comprises a hub reduction gear assembly testing device consisting of two groups of support frames, a first hub reduction gear assembly, a second hub reduction gear assembly and a hub connecting cylinder, the first hub reduction gear assembly and the second hub reduction gear assembly are fixedly connected to the two supporting frames respectively, the output ends of the first hub reduction gear assembly and the second hub reduction gear assembly are connected with the two ends of the hub connecting cylinder respectively, the input ends of the first hub reduction gear assembly and the second hub reduction gear assembly are connected with the first transmission shaft and the second transmission shaft respectively, and the first transmission shaft and the second transmission shaft are connected with the torque flange and the dynamometer respectively. The device can test two groups of hub reduction gear assemblies at the same time, simulates the operation condition of a real vehicle, and effectively improves the test efficiency and the accuracy of an experiment result.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a testing device for an automobile wheel reducer assembly. Background Art

[0002] Automobiles are the main means of transportation. The wheel-side reducer assembly of the automobile is the position that bears the maximum torque in the bridge assembly. It is one of the most important factors affecting the overall efficiency of the bridge assembly and also one of the factors affecting the reliability of the bridge assembly. Therefore, the efficiency, temperature rise and fatigue durability tests of the wheel-side reducer assembly play a vital role in the development process of the bridge assembly.

[0003] At present, for the tests of automobile wheel-side reducer assemblies, most of the tests are to test the data of the whole bridge assembly under the condition of whole bridge installation. However, under the condition of whole bridge installation, the data is vague and cannot confirm the performance of each component in the bridge assembly, and cannot provide effective data support for the further research and development of the bridge assembly. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a test device for testing an automobile wheel reducer assembly, and the technical solution adopted is as follows:

[0005] A test device for testing an automobile wheel reducer assembly, characterized in that it comprises:

[0006] A wheel-side reducer assembly test device, comprising two groups of support frames, a first wheel-side reducer assembly, a second wheel-side reducer assembly, and a wheel-side connecting tube, wherein the first wheel-side reducer assembly and the second wheel-side reducer assembly are respectively fixedly connected to the two groups of support frames, the output ends of the first wheel-side reducer assembly and the second wheel-side reducer assembly are respectively connected to the two ends of the wheel-side connecting tube, the input ends of the first wheel-side reducer assembly and the second wheel-side reducer assembly are respectively connected to the first transmission shaft and the second transmission shaft, and the first transmission shaft and the second transmission shaft are respectively connected to the torque flange and the dynamometer;

[0007] The blowing device is installed on one side of the wheel reducer assembly test device to simulate the wind speed of the actual vehicle;

[0008] The water spraying device is installed above the wheel reducer assembly test device to simulate the rain on the real vehicle.

[0009] Furthermore, the input ends of the first wheel-side reducer assembly and the second wheel-side reducer assembly are connected to the first transmission shaft and the second transmission shaft through the first transition flange and the second transition flange respectively.

[0010] Furthermore, the axial ends of the wheel side connecting cylinder are respectively connected to the output ends of the first wheel side reducer assembly and the second wheel side reducer assembly through wheel side connecting discs.

[0011] Furthermore, the support frame includes two groups of bases arranged at intervals, and a connecting plate, a supporting plate, and a pressing plate fixedly connected between the two bases and arranged in sequence from bottom to top.

[0012] Furthermore, the base is provided with a plurality of mounting holes along the height direction for connecting with the support plate and the pressure plate, and the support plate and the pressure plate are provided with fixing holes for fixing connection with the wheel-side reducer assembly.

[0013] Furthermore, the water spraying device includes a spray pipe and a water receiving tray, and the water receiving tray is arranged below the support frame and the wheel-side reducer assembly testing device.

[0014] Furthermore, the blowing device is a variable frequency fan.

[0015] Furthermore, it also includes a temperature detection device, which is arranged on one side of the wheel-side reducer assembly testing device and is used to detect the temperature of the wheel-side reducer assembly.

[0016] Furthermore, the temperature detection device includes a mounting bracket with adjustable height and angle, and a temperature sensor fixed on the mounting bracket.

[0017] The beneficial effects of the utility model are:

[0018] 1. Two sets of wheel reducer assemblies can be tested at the same time, effectively improving the test efficiency;

[0019] 2. The input end of the wheel reducer assembly is connected to the drive shaft through a transition flange, which is easy to replace;

[0020] 3. The wind blowing device and rain shower device can be set to simulate the actual vehicle wind speed and actual vehicle rain shower conditions, making the test data more realistic and improving the accuracy of the test results;

[0021] 4. The temperature detection device can be set to monitor the real-time temperature of the wheel reducer assembly;

[0022] 5. The height of the support plate and the pressure plate on the base is adjustable to meet the installation requirements of different wheel reducer input and output heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the utility model

[0024] Figure 2 Schematic diagram of the connection structure between the first wheel reducer assembly and the support frame

[0025] Figure 3 Schematic diagram of the distribution of the shower device, the blowing device and the temperature detection device

[0026] Figure 4 Schematic diagram of the base structure

[0027] Figure 5 Schematic diagram of the wheel side connecting tube structure

[0028] Figure 6 Schematic diagram of transition flange structure

[0029] Among them, 1-support frame, 101-base, 102-connecting plate, 103-support plate, 104-pressing plate;

[0030] 2-first transmission shaft, 3-first transition flange, 4-first wheel-side reducer assembly, 5-first wheel-side connecting plate, 6-wheel-side connecting tube, 7-second wheel-side connecting plate, 8-second wheel-side reducer assembly, 9-second transmission shaft, 10-spray pipe, 11-water tray, 12-variable frequency fan, 13-infrared thermometer. DETAILED DESCRIPTION

[0031] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0032] In the description of the utility model, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the viewing direction or position relationship, and are only for the convenience of describing the utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0033] like Figure 1-Figure 6 The shown automobile wheel reducer assembly test device comprises two groups of support frames 1 spaced apart on the left and right sides, a wheel reducer assembly test device arranged between the two groups of support frames 1, a rain shower device, a blowing device, and a temperature detection device. The rain shower device is arranged above the wheel reducer assembly test device to simulate the influence of rain on the wheel reducer assembly test device. The blowing device is located on one side of the wheel reducer assembly test device to simulate the wind speed of a real vehicle and increase the influence of real road conditions. The temperature detection device is arranged on one side of the wheel reducer assembly test device to collect the temperature curve in real time and monitor the temperature of the wheel reducer assembly test device.

[0034] Among them, the wheel-side reducer assembly test device is a double wheel-side reducer assembly test device, including a first wheel-side reducer assembly 4, a second wheel-side reducer assembly 8, a wheel-side connecting tube 6, a first transmission shaft 2 and a second transmission shaft 9. The first wheel-side reducer assembly 4 is fixedly connected to the right support frame 1, and its output end is connected to the right end of the wheel-side connecting tube 6 through the first wheel-side connecting disk 5, and its input end is connected to the first transmission shaft 2 through the first transition flange 3; the second wheel-side reducer assembly 8 is fixedly connected to the left support frame 1, and its output end is connected to the left end of the wheel-side connecting tube 6 through the second wheel-side connecting disk 7, and its input end is connected to the second transmission shaft 9 through the second transition flange (not shown in the figure); the first transmission shaft 2 and the second transmission shaft 9 are respectively connected to the torque flange and the dynamometer, and the dynamometer is used to provide a rotation speed and apply torque to perform performance tests such as efficiency and temperature rise.

[0035] Support frame 1 Figure 1 and Figure 3 As shown, it is composed of a base 101, a connecting plate 102, a support plate 103 and a pressure plate 104. The base 101 is symmetrically arranged with two groups front and back. The connecting plate 102 is fixedly connected to the middle position between the two groups of bases 101 by bolts, the support plate 103 and the pressure plate 104 are both fixedly connected to the upper position between the two groups of bases 101, and the pressure plate 104 is located above the support plate 103, and the first wheel-side reducer assembly 4 and the second wheel-side reducer assembly 8 are fixed between the pressure plate 104 and the support plate 103; and the base 101 is also provided with a plurality of groups of mounting holes in the height direction for fixing the pressure plate 104 and the support plate 103. By replacing the matching position of the pressure plate 104 and the support plate 103 with the mounting holes at different heights, it is convenient to adjust the position of the pressure plate 104 and the support plate 103 and the distance between the two, so as to adapt to the installation and fixation of wheel-side reducer assemblies of different models.

[0036] Rain shower device Figure 2 As shown, it includes a spray pipe 10 and a water receiving tray 11. The water receiving tray 11 is located above the floor and is arranged below the wheel-side reducer assembly test device and the two sets of support frames 1. The water outlet of the spray pipe 10 is arranged above the double-wheel-side reducer assembly test device. Water is sprayed onto the test device through the spray pipe 10, thereby simulating the influence of rainwater on the test specimen.

[0037] Blowing device such as Figure 2 As shown, it includes a variable frequency fan 12, which is arranged in front of the double-wheel reducer assembly test device through a bracket. The wind speed is adjusted by the variable frequency fan 12 to simulate the actual vehicle wind speed, which can increase the impact of real road conditions and make it more in line with research and development needs.

[0038] Temperature detection device such as Figure 2As shown, it includes an infrared thermometer 13, which is fixed to the rear position of the double wheel reducer assembly test device through a bracket. The infrared thermometer 13 collects the temperature curve of the wheel reducer assembly in real time to monitor the temperature of the test piece.

[0039] The device supports the wheel-side reducer assembly by means of a support frame 1, and can test two sets of wheel-side reducer assemblies at the same time by means of the wheel-side connecting tube 6, the wheel-side connecting plate and the transition flange, thereby effectively improving the test efficiency. In addition, by arranging a rain shower device and a blowing device to simulate the actual vehicle operation state, the test results can be more in line with reality.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principle of the present invention, and these improvements should also be regarded as the protection scope of the present invention.

Claims

1. A test device for testing an automobile wheel reducer assembly, characterized in that: include: A wheel-side reducer assembly test device, comprising two groups of support frames, a first wheel-side reducer assembly, a second wheel-side reducer assembly, and a wheel-side connecting tube, wherein the first wheel-side reducer assembly and the second wheel-side reducer assembly are respectively fixedly connected to the two groups of support frames, the output ends of the first wheel-side reducer assembly and the second wheel-side reducer assembly are respectively connected to the two ends of the wheel-side connecting tube, the input ends of the first wheel-side reducer assembly and the second wheel-side reducer assembly are respectively connected to the first transmission shaft and the second transmission shaft, and the first transmission shaft and the second transmission shaft are respectively connected to the torque flange and the dynamometer; The blowing device is installed on one side of the wheel reducer assembly test device to simulate the wind speed of the actual vehicle; The water spraying device is installed above the wheel reducer assembly test device to simulate the rain on the real vehicle.

2. The automobile wheel reducer assembly test device according to claim 1 is characterized in that: The input ends of the first wheel-side reducer assembly and the second wheel-side reducer assembly are connected to the first transmission shaft and the second transmission shaft through the first transition flange and the second transition flange respectively.

3. The automobile wheel reducer assembly test device according to claim 1 is characterized in that: The axial ends of the wheel side connecting cylinder are respectively connected to the output ends of the first wheel side reducer assembly and the second wheel side reducer assembly through the wheel side connecting disk.

4. The automobile wheel reducer assembly test device according to claim 1 is characterized in that: The support frame comprises two groups of bases arranged at intervals, and a connecting plate, a supporting plate and a pressing plate which are fixedly connected between the two bases and are arranged in sequence from bottom to top.

5. The automobile wheel reducer assembly test device according to claim 4 is characterized in that: The base is provided with a plurality of mounting holes along the height direction for being connected with the supporting plate and the pressing plate, and the supporting plate and the pressing plate are provided with fixing holes for being fixedly connected with the wheel-side reducer assembly.

6. The automobile wheel reducer assembly test device according to claim 1, characterized in that: The water spraying device comprises a spray pipe and a water receiving tray, and the water receiving tray is arranged below the support frame and the wheel-side reducer assembly testing device.

7. The automobile wheel reducer assembly test device according to claim 1 is characterized in that: The blowing device is a variable frequency fan.

8. The automobile wheel reducer assembly test device according to claim 1 is characterized in that: It also includes a temperature detection device, which is arranged on one side of the wheel-side reducer assembly testing device and is used to detect the temperature of the wheel-side reducer assembly.

9. The automobile wheel reducer assembly test device according to claim 8, characterized in that: The temperature detection device comprises a mounting bracket with adjustable height and angle, and a temperature sensor fixed on the mounting bracket.

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