Bogie rolling vibration test device

Abstract

The utility model discloses a bogie rolling vibration test device which comprises a test bed base, a supporting unit and a track simulation unit, the supporting unit is installed on the test bed base, and the track simulation unit is installed on the supporting unit; the number of the track simulation units corresponds to the number of wheel sets of the bogie, and each wheel tread of the bogie is located on the corresponding track simulation unit; the track simulation unit comprises a first simulation part and a second simulation part, and the first simulation part and the second simulation part are arranged corresponding to two wheels of the same wheel pair respectively; the first simulation part and the second simulation part corresponding to the same wheel pair are installed on the same supporting unit, and the first simulation part and the second simulation part can slide on the supporting unit to adjust the track gauge; the number of the supporting units corresponds to the number of wheel sets of the bogie, and the multiple supporting units slide on the test bed base to adjust the wheelbase. The rolling vibration test device can be used for carrying out rolling vibration tests on bogies with different track gauges and axle distances, and meets the test requirements of different bogies.

Description

Technical Field

[0001] The present application relates to the technical field of bogie rolling vibration testing, and in particular to a bogie rolling vibration testing device. Background Art

[0002] The rail transit industry is booming, and new bogies of various speeds and structures have been developed and installed. As the core and key component of rail transit vehicles, bogies provide traction and braking force for trains. While carrying the weight of the train, they need to run at high speed under different track conditions. Their working conditions are related to the operating safety, operating stability and riding comfort of the entire train. At present, the rolling vibration test equipment for bogies of different track gauges and wheelbases of rail transit vehicles in China cannot fully meet the test requirements. Utility Model Content

[0003] The utility model provides a bogie rolling vibration test device to solve the technical problem that the test device in the prior art cannot meet the rolling vibration test requirements of bogies with different track gauges and wheelbases.

[0004] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is as follows:

[0005] According to a first aspect of the utility model, a bogie rolling vibration test device is provided, comprising a test bench base, a support unit and a track simulation unit, wherein the support unit is mounted on the test bench base, and the track simulation unit is mounted on the support unit; the number of the track simulation units corresponds to the number of wheel pairs of the bogie, and the tread of each wheel of the bogie is located on the corresponding track simulation unit; the track simulation unit comprises a first simulation part and a second simulation part, wherein the first simulation part and the second simulation part are respectively arranged corresponding to two wheels of the same wheel pair; the first simulation part and the second simulation part corresponding to the same wheel pair are mounted on the same support unit, and the first simulation part and the second simulation part can slide on the support unit respectively to adjust the track gauge; the number of the support units corresponds to the number of wheel pairs of the bogie, and a plurality of support units slide on the test bench base to adjust the wheelbase.

[0006] Furthermore, the track simulation unit also includes a universal connecting shaft, and the first simulation part and the second simulation part are connected by the universal connecting shaft; the bogie rolling vibration test device includes a first connecting member and a second connecting member, the first connecting member can detachably connect the first simulation part and the support unit, and the second connecting member can detachably connect the second simulation part and the support unit.

[0007] Furthermore, a plurality of first slide grooves are provided on the support unit, and the first simulation part and the second simulation part move in the first slide grooves respectively.

[0008] Furthermore, the first sliding groove is perpendicular to the extension direction of the track.

[0009] Furthermore, the bogie rolling vibration test device includes a third connecting member, and each of the support units is detachably connected to the test bench base via the third connecting member.

[0010] Furthermore, a plurality of second slide grooves are provided on the test bench base, and the support unit moves in the second slide grooves.

[0011] Furthermore, the second sliding groove is parallel to the extension direction of the track.

[0012] Furthermore, the bogie rolling vibration test device also includes a simulated pillow block, a shock absorber tooling, a dummy bogie, a reaction frame and a base, the simulated pillow block connects the dummy bogie with the traction seat and the secondary vertical suspension device of the bogie, the shock absorber tooling connects the dummy bogie with the secondary vertical shock absorber, the secondary lateral shock absorber and the anti-snaking shock absorber of the bogie; the dummy bogie is connected to the base through the reaction frame.

[0013] Furthermore, the bogie rolling vibration test device includes a driving mechanism and a transmission system, the output end of the driving mechanism is connected to the transmission system, and the track simulation unit is connected to the transmission system.

[0014] The bogie rolling vibration test device provided by the utility model has a track simulation unit and a wheelset of the bogie, the first simulation part and the second simulation part of the track simulation unit correspond to the two wheels of the same wheelset respectively, the first simulation part and the second simulation part slide on the support unit respectively, and can adjust the distance between the two wheels of the same wheelset, that is, adjust the track gauge to meet the rolling vibration test requirements of bogies with different track gauges; the first simulation part and the second simulation part corresponding to the same wheelset are installed on the same support unit, and different support units slide on the test bench base respectively, and can adjust the distance between different wheelsets to meet the rolling vibration test requirements of bogies with different wheelbases. The above-mentioned bogie rolling vibration test device can perform rolling vibration tests on bogies with different track gauges and wheelbases, adapt to the test requirements of different bogies, reduce test costs, and improve test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a bogie rolling vibration test device in an embodiment of the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the side structure of

[0018] Figure 3 for Figure 1 A schematic diagram of the structure from above, wherein the bogie is not shown.

[0019] Reference numerals:

[0020] 10. Bogie; 20. Test bench base; 21. Second slide; 30. Support unit; 31. First slide; 40. Track simulation unit; 41. First simulation part; 42. Second simulation part; 43. Universal joint shaft; 50. Third connecting piece; 60. Simulated pillow beam; 70. Shock absorber tooling; 80. Dummy trolley; 90. Reaction frame; 100. Base; 110. Transmission system. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0023] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, 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 should not be understood as a limitation on the present application.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0025] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0026] like Figures 1 to 3 As shown, an embodiment of the present application provides a bogie rolling vibration test device, including a test bench base 20, a support unit 30 and a track simulation unit 40, wherein the support unit 30 is installed on the test bench base 20, and the track simulation unit 40 is installed on the support unit 30.

[0027] The number of track simulation units 40 corresponds to the number of wheel pairs of the bogie 10, and the treads of each wheel of the bogie 10 are located on the corresponding track simulation unit 40; the track simulation unit 40 includes a first simulation part 41 and a second simulation part 42, and the first simulation part 41 and the second simulation part 42 are respectively arranged corresponding to the two wheels of the same wheel pair; the first simulation part 41 and the second simulation part 42 corresponding to the same wheel pair are installed on the same support unit 30, and the first simulation part 41 and the second simulation part 42 can slide on the support unit 30 respectively to adjust the track gauge.

[0028] In the embodiment of the present application, the track simulation unit 40 is arranged corresponding to the wheelset of the bogie 10, and the first simulation part 41 and the second simulation part 42 of the track simulation unit 40 respectively correspond to the two wheels of the same wheelset, and the first simulation part 41 and the second simulation part 42 respectively slide on the support unit 30, and can adjust the distance between the two wheels of the same wheelset, that is, adjust the track gauge, to meet the rolling vibration test requirements of the bogie 10 with different track gauges.

[0029] The number of support units 30 corresponds to the number of wheel sets of the bogie 10, and multiple support units 30 slide on the test bench base 20 to adjust the wheelbase. In the embodiment of the present application, the first simulation part 41 and the second simulation part 42 corresponding to the same wheel set are installed on the same support unit 30, and different support units 30 slide on the test bench base 20 respectively, which can adjust the distance between different wheel sets and meet the rolling vibration test needs of bogies 10 with different wheelbases.

[0030] The bogie rolling vibration test device of the embodiment of the present application is capable of performing rolling vibration tests on bogies 10 with different track gauges and wheelbases, adapting to the test requirements of different bogies 10, reducing test costs and improving test efficiency.

[0031] In the embodiment of the present application, the number of track simulation units 40 and support units 30 corresponds to the number of wheel pairs of the bogie 10, that is, each wheel pair of the bogie 10 requires a pair of track simulation units 40 and a pair of support units 30. The bogie rolling vibration test device of the embodiment of the present application can be provided with multiple pairs of track simulation units 40 and multiple pairs of support units 30, respectively, to meet the rolling vibration test requirements of multiple wheel pairs of the bogie 10 at the same time.

[0032] In some embodiments, the track simulation unit 40 further includes a universal connecting shaft 43, and the first simulation part 41 and the second simulation part 42 are connected via the universal connecting shaft 43. The bogie rolling vibration test device includes a first connecting member and a second connecting member, the first connecting member detachably connects the first simulation part 41 and the support unit 30, and the second connecting member detachably connects the second simulation part 42 and the support unit 30.

[0033] In the embodiment of the present application, a universal connecting shaft 43 is provided between the first simulation part 41 and the second simulation part 42, so that the first simulation part 41 and the second simulation part 42 can be connected and rotate synchronously. The first simulation part 41 and the support unit 30 are detachably connected through the first connecting member, and when the two need to be fixed, the first connecting member can be installed and tightened; when the first simulation part 41 needs to slide on the support unit 30, the first connecting member can be removed. The detachable connection between the second simulation part 42 and the support unit 30 is similar to the above, and will not be repeated here.

[0034] In some embodiments, a plurality of first chutes 31 are provided on the support unit 30, and the first simulation part 41 and the second simulation part 42 move in the first chutes 31 respectively. It is understandable that the plurality of first chutes 31 are arranged in the same direction. The first simulation part 41 and the second simulation part 42 move relative to or opposite to each other, that is, the movement directions of the first simulation part 41 and the second simulation part 42 are opposite, so as to reduce or expand the distance between the first simulation part 41 and the second simulation part 42. In the embodiment of the present application, the first chutes 31 are perpendicular to the extension direction of the track. It is understandable that the first chutes 31 are perpendicular to the extension direction of the track, and the first simulation part 41 and the second simulation part 42 move along the first chutes 31, so as to achieve the adjustment of the track gauge.

[0035] In some embodiments, the bogie rolling vibration test device includes a third connecting member 50, and each support unit 30 is detachably connected to the test bench base 20 through the third connecting member 50. In the embodiment of the present application, the support unit 30 is detachably connected to the test bench base 20, and when the support unit 30 needs to be moved on the test bench base 20 to adjust the wheelbase, the third connecting member 50 can be removed; when the support unit 30 is moved into place, the third connecting member 50 is installed and tightened to fix the support unit 30 and the test bench base 20.

[0036] In some embodiments, a plurality of second slide grooves 21 are provided on the test bench base 20, and the support unit 30 moves in the second slide grooves 21. It is understandable that the plurality of second slide grooves 21 are provided in the same direction. Different support units 30 move relative to or away from each other, that is, the moving directions are opposite, so as to reduce or expand the distance between the two support units 30. In the embodiment of the present application, the second slide groove 21 is parallel to the extension direction of the track. It is understandable that the second slide groove 21 is parallel to the extension direction of the track, and the two support units 30 move along the second slide groove 21, so as to achieve the adjustment of the wheelbase.

[0037] In some embodiments, the bogie rolling vibration test device also includes a simulated pillow block 60, a shock absorber tooling 70, a dummy trolley 80, a reaction frame 90 and a base 100. The simulated pillow block 60 connects the dummy trolley 80 with the traction seat and the secondary vertical suspension device of the bogie 10. The shock absorber tooling 70 connects the dummy trolley 80 with the secondary vertical shock absorber, the secondary lateral shock absorber and the anti-snaking shock absorber of the bogie 10. The dummy trolley 80 is connected to the base 100 through the reaction frame 90.

[0038] In the embodiment of the present application, the bogie 10 falls on the track wheel of the track simulation unit 40, and the simulated bolster 60 and the shock absorber fixture 70 are used to realize the connection between the bogie 10 and the dummy trolley 80, wherein the simulated bolster 60 connects the dummy trolley 80 with the traction seat of the bogie 10 and the secondary vertical suspension device, and the shock absorber fixture 70 is used to connect the dummy trolley 80 with the secondary vertical shock absorber, the secondary lateral shock absorber and the anti-snaking shock absorber of the bogie 10. The simulated bolster 60 and the shock absorber fixture 70 with different structures and interfaces can be designed according to different types of bogies 10. The dummy trolley 80 is used to connect and fix the bogie 10 by simulating the car body, and weights can be placed on the dummy trolley 80 to simulate the vehicle axle weight. The reaction frame 90 and the base 100 are used to connect and fix the dummy trolley 80 to achieve longitudinal positioning and lateral and vertical constraints. The reaction frame 90 itself is fixed on the base 100, and its position can be adjusted longitudinally and laterally on the base 100. The position can be adjusted longitudinally together with the base 100 to adapt to the testing of bogies 10 and dummy trolleys 80 of different lengths and structures.

[0039] In some embodiments, the bogie rolling vibration test device includes a driving mechanism and a transmission system 110, the output end of the driving mechanism is connected to the transmission system 110, and the track simulation unit 40 is connected to the transmission system 110. In the embodiment of the present application, after the test device is connected, the track wheel of the track simulation unit 40 is rotated by the driving mechanism such as a motor and the transmission system 110, and the wheels of the bogie 10 are driven to roll, so as to achieve speed synchronization of different axes. The transmission system 110 mainly includes a synchronous gearbox, a synchronous box connecting shaft and a universal coupling.

[0040] The bogie rolling vibration test device also includes a hydraulic excitation system, which includes a vertical actuator and a lateral actuator, which can simultaneously provide vertical and lateral vibrations of different frequencies and amplitudes to simulate the vertical and lateral unevenness of the line, and verify the performance of the bogie 10 when different line spectra are applied at different speeds. During the test, the vertical actuator and the lateral actuator can simulate the line spectrum and simultaneously apply vertical vibration and lateral vibration to achieve the rolling vibration of the bogie 10 and test the performance and parameter verification of the bogie 10. By adjusting the test bench and designing and manufacturing the simulated bolster 60 and the shock absorber connection tooling, various types of bogie rolling vibration tests can be met.

[0041] The bogie rolling vibration test device of the embodiment of the present application is combined with the rolling vibration test bench. The size and parameters of the test bench are adjusted with reference to the gauge, wheelbase and other parameters of the bogie 10, so that the bogie 10 falls on the track wheel of the track simulation unit 40. The bogie 10 is fixed and connected by the reaction frame 90, the dummy trolley 80 and the like to simulate the axle weight. Different line spectra are loaded by the hydraulic excitation system to simulate the line unevenness during the actual operation of the bogie 10, so as to verify whether various performances such as the structural design, suspension device design and parameter selection of the bogie 10 meet the design requirements.

[0042] When the bogie rolling vibration test device of the embodiment of the present application is used, the spacing between the first simulation part 41 and the second simulation part 42 in the track simulation unit 40 and the spacing between the support units 30 are adjusted according to the track gauge and wheelbase of the bogie 10 to adjust the track gauge and wheelbase of the test bench. The bogie 10 is placed on the test bench, and the single bogie 10 is connected, positioned and fixed using a simulated bolster 60, a shock absorber tooling 70, a dummy trolley 80, a reaction frame 90 and a base 100, and the axle weight is balanced using weights; the test bench track wheel is used to simulate the track and drive the bogie 10 wheels to run in pure rolling. The test bench hydraulic excitation system can load different line spectra, and simultaneously apply vertical and lateral vibrations to simulate the vertical and lateral unevenness of the line, and verify the critical speed of the bogie 10, the stability of the bogie 10 and other performances under different lines, different speeds, different connection states (removing different shock absorbers to simulate fault conditions) and other conditions.

[0043] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bogie rolling vibration test device, characterized in that: It comprises a test bench base, a support unit and a track simulation unit, wherein the support unit is installed on the test bench base, and the track simulation unit is installed on the support unit; The number of the track simulation units corresponds to the number of wheel pairs of the bogie, and the tread of each wheel of the bogie is located on the corresponding track simulation unit; the track simulation unit includes a first simulation part and a second simulation part, and the first simulation part and the second simulation part are respectively arranged corresponding to two wheels of the same wheel pair; the first simulation part and the second simulation part corresponding to the same wheel pair are installed on the same support unit, and the first simulation part and the second simulation part can slide on the support unit respectively to adjust the track gauge; The number of the support units corresponds to the number of wheel pairs of the bogie, and a plurality of support units slide on the test bench base to adjust the wheelbase.

2. The bogie rolling vibration test device according to claim 1, characterized in that: The track simulation unit also includes a universal connecting shaft, and the first simulation part and the second simulation part are connected by the universal connecting shaft; the bogie rolling vibration test device includes a first connecting member and a second connecting member, and the first connecting member can detachably connect the first simulation part and the support unit, and the second connecting member can detachably connect the second simulation part and the support unit.

3. The bogie rolling vibration test device according to claim 1, characterized in that: The support unit is provided with a plurality of first slide grooves, and the first simulation part and the second simulation part move in the first slide grooves respectively.

4. The bogie rolling vibration test device according to claim 3, characterized in that: The first sliding groove is perpendicular to the extension direction of the track.

5. The bogie rolling vibration test device according to claim 1, characterized in that: The bogie rolling vibration test device comprises a third connecting member, and each of the support units is detachably connected to the test bench base via the third connecting member.

6. The bogie rolling vibration test device according to claim 1, characterized in that: A plurality of second slide grooves are arranged on the test bench base, and the support unit moves in the second slide grooves.

7. The bogie rolling vibration test device according to claim 6, characterized in that: The second sliding groove is parallel to the extension direction of the track.

8. The bogie rolling vibration test device according to any one of claims 1 to 7, characterized in that: The bogie rolling vibration test device also includes a simulated bolster, a shock absorber tooling, a dummy bogie, a reaction frame and a base. The simulated bolster connects the dummy bogie with the traction seat and the secondary vertical suspension device of the bogie. The shock absorber tooling connects the dummy bogie with the secondary vertical shock absorber, the secondary lateral shock absorber and the anti-snaking shock absorber of the bogie. The dummy bogie is connected to the base through the reaction frame.

9. The bogie rolling vibration test device according to any one of claims 1 to 7, characterized in that: The bogie rolling vibration test device comprises a driving mechanism and a transmission system, the output end of the driving mechanism is connected to the transmission system, and the track simulation unit is connected to the transmission system.

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