Pass-type test bench based on metro vehicle wheel set running-in

Abstract

The utility model discloses a pass-type test bench based on metro vehicle wheel set running-in, which comprises two lifting guide rails arranged in a foundation pit along the front-back direction and corresponding to two wheels of a wheel set; the two axle box supporting seats are arranged in the foundation pit and located on the two sides, away from each other, of the two guide rails. The two pressing devices are respectively arranged on the two axle box supporting seats; the gear box supporting seat is arranged in the foundation pit and located between the two lifting guide rails; the device further comprises a friction wheel transmission device and a coupling driving device which are arranged in the foundation pit, and the coupling driving device and the friction wheel transmission device are installed in the foundation pit through a three-dimensional moving platform and located between the two lifting guide rails. A wheel set to be subjected to a running-in test is directly pushed into the lifting guide rail without hoisting; and according to the arrangement of the friction wheel transmission device and the coupling driving device, the test bed is suitable for the running-in test of the bullet train wheel pair and the trailer wheel pair.

Description

Technical Field

[0001] This application relates to the field of vehicle testing technology, specifically to a pass-through test bench based on the running-in of subway vehicle wheelsets. Background Technology

[0002] Currently, the test benches for the running-in of subway vehicle wheelsets all use a hoisting method to hoist the wheelsets to the test bench. For example, the running-in test bench described in the utility model patent document with announcement number CN207197946U is a running-in test bench for wheelsets in an unloaded and pressurized state without axle box. Hoisting requires the wheelsets to be stably fixed on the hoisting fixture before being transferred to the running-in test bench and then the hoisting fixture is removed. This is inefficient. In addition, the structure and interface of wheelsets are different for different projects, and hoisting fixtures need to be designed separately for wheelsets with different structures and interfaces before replacement, which is inconvenient. Summary of the Invention

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a pass-through test bench for the running-in of subway vehicle wheelsets to improve the efficiency of running-in testing. The technical solution adopted includes:

[0004] A pass-through test bench based on the running-in of subway vehicle wheelsets.

[0005] Two lifting guide rails are set in the pit along the front-to-back direction, and the two lifting guide rails correspond to the two wheels of the wheelset;

[0006] Two axle box supports are installed in the pit and located on opposite sides of the two guide rails.

[0007] Two clamping devices are respectively installed on the two axle box support seats;

[0008] The gearbox support is installed inside the pit and located between two lifting guide rails;

[0009] It also includes a friction wheel drive device and a coupling drive device installed in the foundation pit. The coupling drive device and the friction wheel drive device are respectively installed in the foundation pit via a three-dimensional moving platform and located between two lifting guide rails.

[0010] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: it further includes a first guide rail, which is set on the ground on one side of the foundation pit. When the lifting guide rail rises to be flush with the ground, the first guide rail and the lifting guide rail are connected.

[0011] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: it further includes a second guide rail, which is set on the ground on the other side of the foundation pit, and the second guide rail and the first guide rail are located on opposite sides of the foundation pit. When the lifting guide rail rises to be flush with the ground, the second guide rail and the lifting guide rail are connected.

[0012] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: each of the lifting guide rails includes a track beam, four worm gear lifts and a servo motor. The four worm gears are spaced apart in the front-back direction. The track beam is installed at the output end of the four worm gear lifts. The servo motor is connected to the input end of the four worm gear lifts.

[0013] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: the clamping device includes a telescopic component and a clamping component. The telescopic component is installed on the axle box support seat with its telescopic end facing downward, and the clamping component is installed on the telescopic end of the telescopic component.

[0014] The through-type test bench for running-in of subway vehicle wheelsets described in this application does not require the use of hoisting tools to lift the wheelsets; the wheelsets to be tested can be directly pushed into the lifting guide rail. Furthermore, based on the setting of the friction wheel transmission device and the coupling drive device, the test bench is suitable for running-in tests of motor vehicle wheelsets and trailer wheelsets. Attached Figure Description

[0015] The above and additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Figure 1 This is a schematic diagram of the installation of the test bench described in this application;

[0017] Figure 2 This is a schematic diagram of the structure of the test bench described in this application;

[0018] Figure 3 This is a front view of the foundation pit described in this application;

[0019] Figure 4 This is a cross-sectional view of the foundation pit described in this application. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] Reference Figure 1-4 The through-type test bench for subway vehicle wheelset running-in described in this embodiment includes:

[0025] Lifting guide rails 20 are installed in the pit 10 along the front-to-back direction, and the two lifting guide rails 20 correspond to the two wheels 101 of the wheel set;

[0026] Two axle box support seats 30 are set in the foundation pit 10 and located on two opposite sides of the two guide rails;

[0027] Two clamping devices 40 are respectively installed on two axle box support seats 30;

[0028] The gearbox support 50 is set inside the pit 10 and located between two lifting guide rails 20;

[0029] It also includes a friction wheel drive device 60 and a coupling drive device 70 installed in the foundation pit 10. The coupling drive device 70 and the friction wheel drive device 60 are respectively installed in the foundation pit 10 via a three-dimensional moving platform 80 and located between two lifting guide rails 20.

[0030] The method of using the through-type test bench for the running-in of subway vehicle wheelsets described in this embodiment is as follows:

[0031] The two wheels 101 of the subway car wheelset are pushed into the lifting guide rail 20 respectively. The lifting guide rail 20 descends so that the axle boxes 102 at both ends of the wheelset are placed on the axle box support 30, and the gear box 103 is placed on the gear box support 50. Then, the axle boxes at both ends of the wheelset are pressed together by the clamping device to fix the position of the wheelset. The lifting guide rail 20 continues to descend so that the two wheels 101 are suspended in the air.

[0032] For the 101 pairs of moving wheels, the three-dimensional moving platform 80 drives the coupling drive device 70 to move to the gear shaft close to the gearbox, and then connects the gear shaft of the gearbox and the output shaft of the coupling drive device 70 through a coupling. The coupling drive device 70 is then started to drive the wheelset to run-in test, and data monitoring such as speed monitoring, temperature measurement, and vibration measurement is performed.

[0033] For the tractor wheel 101 pair, the three-dimensional moving platform 80 drives the friction wheel transmission device 60 to move within the pit 10 so that the friction wheel of the friction wheel transmission device 60 contacts the wheel 101 of the wheel pair, and starts the friction wheel transmission device 60 so that the friction wheel transmission device 60 drives the wheel pair to run-in through the friction wheel pair tread, and performs data monitoring such as speed monitoring, temperature measurement, and vibration measurement.

[0034] The data to be monitored includes vibrations at three locations: the axle box bearing on the gearbox side, the axle box bearing on the non-gearbox side, and the gearbox body; and temperatures at four locations: the axle box bearing on the gearbox side, the axle box bearing on the non-gearbox side, the gearbox oil temperature, and the ambient temperature. Additionally, the noise of the axle box bearing needs to be measured.

[0035] Based on the above test content, it is possible to simulate the working conditions of wheelsets of various types of vehicles such as EMUs and trailers, conduct bearing thermal balance tests and no-load running-in tests, and conduct tests on an assembled axle box at one time, mainly measuring temperature, vibration, speed and noise.

[0036] The three-dimensional moving platform 80 is existing technology in this field, and the specific structure and working principle of the three-dimensional moving platform 80 are not described in detail in this embodiment. The three-dimensional moving platform 80 can realize the position adjustment of the coupling drive device 70 and the friction wheel transmission device 60, thereby adapting to the position of the wheelset and pinion shaft of the gearbox on different models of products.

[0037] The through-type test bench for running-in of subway vehicle wheelsets described in this application does not require the use of hoisting tools to lift the wheelsets; the wheelsets to be run-in tested can be directly pushed into the lifting guide rail 20. Furthermore, based on the setting of the friction wheel transmission device 60 and the coupling drive device 70, the test bench is suitable for running-in tests of motor vehicle wheelsets 101 and trailer wheelsets 101.

[0038] Based on the above, the test bench in this embodiment also includes a first guide rail 90. The first guide rail 90 is set on the ground on one side of the foundation pit 10. When the lifting guide rail 20 rises to be flush with the ground, the first guide rail 90 is connected to the lifting guide rail 20. A pair of wheelsets to be run-in can be placed on the first guide rail 90. By placing the wheelsets to be run-in on the first guide rail 90, the wheelsets can be pushed into the lifting guide rail 20 from the first guide rail 90, which helps to improve the test efficiency.

[0039] On the other hand, it also includes a second guide rail 110, which is set on the ground on the other side of the foundation pit 10. The second guide rail 110 and the first guide rail 90 are located on opposite sides of the foundation pit 10. When the lifting guide rail 20 rises to be flush with the ground, the second guide rail 110 is connected to the lifting guide rail 20, and the wheelset that has completed the running-in test is pushed out from the lifting guide rail 20 into the second guide rail 110.

[0040] The lifting guide rail 20 includes two track beams 21, four worm gear lifters 22, and a servo motor 23. The four worm gear lifters 22 are divided into two groups, with the two groups of worm gear lifters 22 spaced apart from each other. The two worm gear lifters 22 in each group are vertically spaced apart along the front-back direction. The track beams 21 are installed at the output ends of the two worm gear lifters 22. The servo motor 23 is connected to the input ends of the four worm gear lifters 22 to ensure that the two track beams 21 lift synchronously.

[0041] The clamping device 40 includes a telescopic member 41 and a clamping member 42. The telescopic member 41 is mounted on the axle box support 30 with its telescopic end facing downwards, and the clamping member 42 is mounted on the telescopic end of the telescopic member 41.

[0042] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A pass-through test bench based on the running-in of subway vehicle wheelsets, characterized in that, Two lifting guide rails (20) are set in the pit (10) along the front-back direction, and the two lifting guide rails (20) correspond to the two wheels (101) of the wheelset; Two axle box support seats (30) are set in the pit (10) and located on two opposite sides of the two guide rails; Two clamping devices (40) are respectively installed on two axle box support seats (30); The gearbox support (50) is set in the pit (10) and located between two lifting guide rails (20); It also includes a friction wheel drive device (60) and a coupling drive device (70) installed in the pit (10). The coupling drive device (70) and the friction wheel drive device (60) are respectively installed in the pit (10) via a three-dimensional moving platform (80) and located between two lifting guide rails (20).

2. The through-type test bench based on the running-in of subway vehicle wheelsets according to claim 1, characterized in that, It also includes a first guide rail (90), which is set on the ground on one side of the pit (10). When the lifting guide rail (20) rises to be flush with the ground, the first guide rail (90) and the lifting guide rail (20) are connected.

3. The through-type test bench based on the running-in of subway vehicle wheelsets according to claim 2, characterized in that, It also includes a second guide rail (110), which is set on the ground on the other side of the pit (10), and the second guide rail (110) and the first guide rail (90) are located on opposite sides of the pit (10). When the lifting guide rail (20) rises to be level with the ground, the second guide rail (110) and the lifting guide rail (20) are connected.

4. The through-type test bench based on the running-in of subway vehicle wheelsets according to claim 1, characterized in that, Each of the lifting guide rails (20) includes a track beam (21), four worm gear lifts (22) and a servo motor (23). The four worm gear lifts are spaced apart in the front-back direction. The track beam (21) is installed at the output end of the four worm gear lifts (22), and the servo motor (23) is connected to the input end of the four worm gear lifts (22).

5. The through-type test bench based on the running-in of subway vehicle wheelsets according to claim 1, characterized in that, The clamping device (40) includes a telescopic member (41) and a clamping member (42). The telescopic member (41) is installed on the axle box support (30) with its telescopic end facing downwards, and the clamping member (42) is installed on the telescopic end of the telescopic member (41).

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