A test bench capable of performing bogie loading tests

Abstract

This utility model relates to the field of rail transit technology, specifically disclosing a test bench for bogie loading tests. It includes a single-wheel drive test bench for mounting the bogie and cooperating with the rotating frame, a loading mechanism mounted on the single-wheel drive test bench for loading the bogie, and a suspension fixing mechanism for fixing the bogie. This effectively enables loading tests and fixing of the bogie on the single-wheel drive test bench, maximizing the simulation of the bogie's motion state on the single-wheel drive test bench.

Description

Technical Field

[0001] This utility model relates to the technical field of rail transit, and more specifically, to a test bench that can perform bogie loading tests. Background Technology

[0002] The bogie is a key component of rail vehicles, playing a role in load bearing, traction, braking, steering and vibration reduction. It is one of the core components of the large-scale research of rail vehicle systems. Therefore, the structural strength and dynamic parameters of the bogie are the focus of bogie design and testing. Thus, during the design phase, the bogie needs to undergo loading tests on a test bench.

[0003] The single-wheel drive test bench can only conduct tests on a single wheelset drive and cannot perform loading tests on the bogie; loading tests will be conducted using separate equipment, which will greatly increase the testing cost. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a test bench that can realize bogie loading test. This utility model can effectively realize the loading test fixation of bogie on a single wheel drive test bench and can realize the simulation of bogie motion state on the single wheel drive test bench to the greatest extent.

[0005] The solution adopted by this utility model to solve the technical problem is:

[0006] A test bench for bogie loading tests includes a single-wheel drive test bench for mounting the bogie and cooperating with the rotating frame, a loading mechanism mounted on the single-wheel drive test bench for loading the bogie, and a suspension fixing mechanism for fixing the bogie.

[0007] In some possible implementations, the single-wheel drive test bench includes a support frame for mounting the bogie, two sets of symmetrically arranged support columns, and a drive wheel pair mounted on the support columns and located at the bottom of the support frame; the support frame is disposed between the two sets of support columns; and the loading mechanism is mounted on the support columns and located directly above the support frame.

[0008] In some possible implementations, the suspension fixing mechanism includes a fixing member mounted on a support frame for fixing the two-wheel drive of the bogie, and a fixing assembly for fixing the bogie frame.

[0009] One of the bogie's drive wheels is engaged with the drive wheelset.

[0010] In some possible implementations, the support frame includes two sets of parallel rails, a rail base connected to one end of the rails and used to support the two-wheel drive of the bogie; the fastener is mounted on the rail base.

[0011] In some possible implementations, the fasteners are in two sets and are provided corresponding to both ends of the two-position drive;

[0012] Each set of fasteners includes a wire rope with one end passing through a pull groove on the wheel hub, a connecting hook with one end connected to the wire rope, and a transition plate installed on the rail base and attached to the other end of the connecting hook; the two ends of the wire rope are connected by a ring buckle.

[0013] In some possible implementations, the transition plate includes a plate body bolted to the track base and an arc-shaped rod with both ends mounted on the plate body and hooked to a connecting hook.

[0014] In some possible implementations, the connecting hook includes a hook one that engages with the wire rope, a connecting plate that is screwed to the hook one, and a hook two that is connected to the connecting plate and engages with the arc-shaped rod.

[0015] In some possible implementations, the fixing assembly includes two-end fixing members mounted on the rail base for connecting the bogie to the end near the second wheel drive, and one-end fixing member for connecting the bogie to the end near the first wheel drive.

[0016] In some possible implementations, the two-end fasteners include fastener A for connecting the two-end frame beams of the bogie near the two-wheel drive side, and fastener B for connecting the end of the side beams of the frame near the two-wheel drive side.

[0017] The fastener A includes a support base installed on the rail surface base, a U-shaped clamp installed on the bogie, and a connecting ring with one end connected to the U-shaped clamp and the other end connected to the support base. The connecting ring is fitted inside the U-shaped clamp and the support base.

[0018] The fastener B includes a connecting plate installed on the rail base and an annular steel cable connected to the connecting plate and to the bogie.

[0019] The one-end fixing component includes a support, a connector mounted on the bogie, and a connecting rod for connecting the support and the connector; the connecting rod is hinged to the support and the connector and is rotatably engaged about the vertical direction.

[0020] In some possible implementations, the loading mechanism includes a gantry mounted on two sets of support columns, a fixing member mounted on the gantry, a vertical actuator mounted on the fixing member and moving vertically to apply load to the bogie, a crossbeam connected to the bottom of the vertical actuator, and an abutment plate mounted on the bottom of the crossbeam.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] This utility model connects the bogie to the single-wheel drive test bench through a suspension fixing mechanism, thereby effectively simulating the performance status of each mechanism of the bogie on the actual track under load, and monitoring parameters such as stress, vibration, and temperature of each part;

[0023] This utility model effectively enables the bogie to have a certain displacement in the vertical, lateral and longitudinal directions through the suspension and fixing mechanism, thereby simulating the operation of the bogie on the actual track.

[0024] This utility model has a simple structure and strong practicality. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a structural schematic diagram of the fixing component one in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the fixing member B in this utility model;

[0028] Figure 4 This is a schematic diagram of the connection of one end of the fixing member in this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of this utility model when it is installed with a bogie;

[0030] Figure 6 for Figure 5 Side view;

[0031] Figure 7 This is a schematic diagram showing the connection relationship between the two-position wheel drive, side beam, fixing component 1, fixing component B, and rail base in the bogie.

[0032] Figure 8 for Figure 5 Top view;

[0033] Figure 9 This is a schematic diagram showing the connection relationship between the fixing member at one end and the frame beam at the other end in this utility model;

[0034] The components include: 1. Single-wheel drive test bench; 11. Support frame; 111. Track; 112. Rail base; 12. Support column; 2. Loading mechanism; 21. Gantry frame; 22. Fixing component; 23. Vertical actuator; 24. Crossbeam; 25. Abutment plate; 3. Suspension and fixing mechanism; 31. Fixing component one; 311. Steel wire rope; 312. Connecting hook; 3121. Hook one; 3122. Connecting plate; 3123. Hook 3; 313, Transition plate; 3131, Plate body; 3132, Arc rod; 314, Ring buckle; 32, Fixing component B; 321, Connecting plate; 322, Ring steel cable; 33, One-end fixing component; 331, Support; 332, Connecting component; 333, Connecting rod; 10, Bogie; 101, One-end frame beam; 102, Two-end frame beam; 103, Side beam; 104, Side bearing; 105, Two-position wheel drive. Detailed Implementation

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the existence of at least one. In the implementation of this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more. For example, multiple positioning posts refer to two or more positioning posts. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The present invention will now be described in detail.

[0037] like Figures 1-9 As shown:

[0038] A test bench for performing loading tests on bogie 10 includes a single-wheel drive test bench 1 for mounting bogie 10 and cooperating with a rotating frame, a loading mechanism 2 mounted on the single-wheel drive test bench 1 for vertically loading bogie 10, and a suspension fixing mechanism 3 for fixing bogie 10 and causing displacement between bogie 10 and single-wheel drive test bench 1 in three dimensions (vertical, lateral, and longitudinal). The vertical direction is vertical, the longitudinal direction of the track 111 in the single-wheel drive test bench 1 is longitudinal, and the lateral direction is a direction perpendicular to the track 111 in the horizontal direction.

[0039] In use, the bogie 10 is connected to the single-wheel drive test bench 1 through the suspension fixing mechanism 3. Then, the loading mechanism 2 is used to vertically load the bogie 10 to simulate the bogie 10 bearing the weight of the locomotive in the vertical direction. Then, the first wheel drive of the bogie 10 is controlled to rotate. Since there is displacement between the bogie 10 and the single-wheel drive test bench 1 in three dimensions (vertical, lateral and longitudinal), it is possible to effectively simulate the operation of the locomotive under load, thereby simulating the performance status of each mechanism of the bogie 10 on the actual track and monitoring parameters such as stress, vibration and temperature of each part.

[0040] In some possible implementations, the single-wheel drive test bench 1 includes a support frame 11 for mounting the bogie 10, two sets of symmetrically arranged support columns 12, and a drive wheel pair mounted on the support columns 12 and located at the bottom of the support frame 11; the support frame 11 is disposed between the two sets of support columns 12.

[0041] The loading mechanism 2 is installed on the support column 12 and located directly above the support frame 11; the support frame 11 includes two sets of parallel rails 111 and a rail base 112 connected to one end of the rails 111 and used to support the two-position wheel drive 105 of the bogie 10; the fastener 31 is installed on the rail base 112.

[0042] The single-wheel drive test bench 1 is a single-wheel drive test bench in the prior art, and its working principle will not be described in detail; wherein, the drive wheelset is used to control the rotation of the first wheel drive of the bogie 10 or to be driven to rotate by the first wheel drive; the first wheel drive of the bogie 10 is placed on the drive wheelset and is engaged in transmission.

[0043] In some possible implementations, the suspension fixing mechanism 3 includes a fixing member 31 mounted on the support frame 11 for fixing the second-position wheel drive 105 of the bogie 10, and a fixing assembly for fixing the frame of the bogie 10; the first-position wheel drive of the bogie 10 is in transmission engagement with the drive wheelset.

[0044] Specifically, the frame includes a one-end frame beam 101 that is perpendicular to the track 111 in the horizontal direction and located near the first-position drive, a two-end frame beam 102 that is perpendicular to the track 111 in the horizontal direction and located near the second-position drive 105, two sets of side beams 103 that are parallel to the track 111 and used to connect the one-end frame beam 101 and the two-end frame beam 102, and a side bearing 104 that is parallel to the one-end frame beam 101 and the two-end frame beam 102 and located between the one-end frame beam 101 and the two-end frame beam 102, with both ends of the side bearing 104 connected to the two side beams 103.

[0045] In some possible implementations, the fastener 31 is in two sets and is provided corresponding to both ends of the two-position wheel drive 105;

[0046] Each set of fixing components 31 includes a steel wire rope 311 with one end passing through the pull groove on the wheel hub of the two-position wheel drive 105, a connecting hook 312 connected to the steel wire rope 311 at one end, and a transition plate installed on the rail base 112 and hooked to the other end of the connecting hook 312; the two ends of the steel wire rope 311 are connected by ring buckles 314, and multiple sets of ring buckles 314 are used to connect and fix the two ends of the steel wire rope 311; then the connecting hook 312 is connected to the transition plate to realize the connection between the rail base 112 and the two-position wheel drive 105.

[0047] In some possible implementations, in order to effectively achieve the connection and engagement between the connecting hook 312 and the transition plate, the transition plate includes a plate body 3131 fixed to the rail base 112 by bolts, and an arc-shaped rod 3132 with both ends installed on the plate body 3131 and hooked to the connecting hook 312; a cavity is formed between the arc-shaped rod 3132 and the top surface of the plate body 3131, and one end of the connecting hook 312 will pass through the cavity and engage with the arc-shaped rod 3132.

[0048] In some possible implementations, the connecting hook 312 includes a first hook 3121 that is engaged with the wire rope 311, a connecting plate 3122 that is screwed into the first hook 3121, and a second hook 3123 that is connected to the connecting plate 3122 and engaged with the arc-shaped rod.

[0049] The connecting plate 3122 has a ring structure, and the hook one 3121 and hook two 3123 have the same structure and are symmetrically arranged along the length direction of the track 111.

[0050] In some possible implementations, the fixing components include two-end fixing members mounted on the rail base 112 for connecting the bogie 10 to the end near the second-position drive 105, and one-end fixing member 33 for connecting the bogie 10 to the end near the first-position drive.

[0051] In some possible implementations, the two-end fasteners include fastener A for connecting the two-end frame beam 102 of the bogie 10 near the two-position wheel drive 105, and fastener B32 for connecting the side beam 103 of the frame near the end of the two-position wheel drive 105;

[0052] The fastener A includes a support seat installed on the rail base 112, a U-shaped clamp installed on the bogie 10, and a connecting ring with one end connected to the U-shaped clamp and the other end connected to the support seat. The connecting ring is fitted inside the U-shaped clamp and the support seat.

[0053] The fixing component B32 includes a connecting plate 321 mounted on the rail base 112, an annular steel cable 322 connected to the connecting plate 321 and connected to the end of the side beam 103 of the bogie 10 away from the first drive position, the annular steel cable 322 includes a steel wire rope and an annular buckle for connecting the two ends of the steel wire rope; the annular buckle has the same structure as the ring buckle 314.

[0054] Specifically, the plate body 3131, the connecting plate 321, and the support base are all connected to the rail base 112 by bolts;

[0055] Furthermore, when the plate body 3131, the connecting plate 321 and the rail base 112 are connected, the bolts are T-bolts, and the end with the nut will be located in the T-groove of the rail base 112.

[0056] The one-end fixing member 33 includes a support 331, a connector 332 mounted on the bogie 10, and a connecting rod 333 for connecting the support 331 and the connector 332; the connecting rod 333 is hinged to the support 331 and the connector 332 respectively and rotates around the vertical.

[0057] Specifically, the U-shaped clamp includes two sets of symmetrically arranged clamping plates with grooves. The two sets of grooves cooperate to form through slots that fit onto the two end frame beams 102 of the frame. The two sets of clamping plates are fixed by bolts. The two sets of clamping plates are provided with through holes, and the connecting ring will be fitted into the through holes. The support base is installed on the rail base 112 and is provided with a through hole. The axis of the through hole is set along the length of the rail 111, and the connecting ring is fitted into the through hole. The connecting ring is made of steel wire rope.

[0058] The one-end fixing member 33 includes a support 331, a connector 332 mounted on the bogie 10, and a connecting rod 333 for connecting the support 331 and the connector 332; the connecting rod 333 is hinged to the support 331 and the connector 332 respectively and rotates around the vertical.

[0059] Support 331 is fixedly installed on other support structures. One end of connecting rod 333 is hinged to support 331 through hinge seat, and the other end of connecting rod 333 is hinged to connector 332.

[0060] The connector 332 has the same structure as the U-shaped clip. The through groove formed by the connector 332 will be fitted onto the frame beam 101 at one end of the frame. The two sets of clips in the connector 332 form an installation groove close to each other on the side of the connecting rod 333. The end of the connecting rod 333 will be located in the installation groove and form a gap with the installation groove.

[0061] A hole is provided vertically on the hinge seat, and the connecting rod 333 and the hinge seat are connected by bolts through the hole to achieve hinge and vertical rotation.

[0062] Preferably, there are two sets of connectors 332, which are connected to the support 331 through two sets of connecting rods 333. The two sets of connecting rods 333 form a figure-eight structure, and the large end of the figure-eight structure is connected to the support 331. The connecting ring made of the annular steel cable 322 and the steel wire rope 311, the steel wire rope 311 of the fixing part 31, and the two sets of connecting rods 333 in the figure-eight structure will effectively fix the bogie 10 to the single-wheel drive test bench 1, and allow for displacement in the vertical, lateral and longitudinal directions, so as to effectively meet the working conditions required for simulating locomotive operation.

[0063] In some possible implementations, the loading mechanism 2 includes a gantry frame 21 mounted on two sets of support columns 12, a fixing member 22 mounted on the gantry frame 21, a vertical actuator 23 mounted on the fixing member 22 and moving vertically to apply load to the bogie 10, a crossbeam 24 connected to the bottom of the vertical actuator 23, and an abutment plate 25 mounted on the bottom of the crossbeam; the abutment plate 25 is correspondingly disposed above the side bearing 104 of the bogie 10.

[0064] Specifically, the fixing member 22 is used to connect the vertical actuator 23 to the gantry frame 21. When the side bearing 104 is not located directly below the top crossbeam of the gantry frame 21, an L-shaped structure can be used to connect the fixing member 22 to the vertical actuator 23, with one end connected to the top crossbeam of the gantry frame 21 and the other end connected to the vertical actuator 23. When the side bearing 104 is located directly below the top crossbeam of the gantry frame 21, the fixing member 22 can be directly connected to the vertical actuator 23.

[0065] During the simulation test, the vertical actuator 23 controls the crossbeam 24 to move closer to the bogie 10, thereby causing the abutment plate to move closer to the bogie 10, so that the abutment plate contacts the top surface of the side bearing 104. The vertical actuator 23 continuously applies force to realize the vertical loading of the bogie 10, simulating the bogie 10 bearing the weight of the car vertically. The drive wheelset drives one wheel drive to rotate, or the traction motor of the bogie 10 drives one wheel drive to rotate, thereby driving the drive wheelset to rotate, realizing the simulation of locomotive operation, thereby simulating the performance status of each mechanism on the actual line, and monitoring parameters such as stress, vibration, and temperature of each part.

[0066] This invention is not limited to the specific embodiments described above. This invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A test bench capable of performing bogie loading tests, characterized in that, It includes a single-wheel drive test bench for mounting bogies and cooperating with the rotating frame, a loading mechanism mounted on the single-wheel drive test bench for loading the bogies, and a suspension fixing mechanism for fixing the bogies.

2. The test bench for bogie loading tests according to claim 1, characterized in that, The single-wheel drive test bench includes a support frame for mounting the bogie, two sets of symmetrically arranged support columns, and a drive wheel pair mounted on the support columns and located at the bottom of the support frame; the support frame is located between the two sets of support columns; the loading mechanism is mounted on the support columns and located directly above the support frame.

3. The test bench for bogie loading tests according to claim 1, characterized in that, The suspension fixing mechanism includes a fixing component mounted on the support frame for fixing the two-wheel drive of the bogie, and a fixing assembly for fixing the bogie frame. One of the bogie's drive wheels is engaged with the drive wheelset.

4. The test bench for realizing bogie loading tests according to claim 3, characterized in that, The support frame includes two sets of parallel rails and a rail base connected to one end of the rails for supporting the two-position wheel drive of the bogie; the fastener is installed on the rail base.

5. The test bench for bogie loading tests according to claim 4, characterized in that, The fixing component consists of two sets, which are corresponding to the two ends of the two-position wheel drive. Each set of fasteners includes a wire rope with one end passing through a pull groove on the wheel hub, a connecting hook with one end connected to the wire rope, and a transition plate installed on the rail base and attached to the other end of the connecting hook; the two ends of the wire rope are connected by a ring buckle.

6. The test bench for realizing bogie loading tests according to claim 5, characterized in that, The transition plate includes a plate body fixed to the track base by bolts and an arc-shaped rod with both ends mounted on the plate body and hooked to the connecting hook.

7. The test bench for realizing bogie loading tests according to claim 5, characterized in that, The connecting hook includes a hook one that is attached to the wire rope, a connecting plate that is screwed to the hook one, and a hook two that is attached to the connecting plate and attached to the arc-shaped rod.

8. The test bench for realizing bogie loading tests according to claim 3, characterized in that, The fixing components include two-end fixing members mounted on the rail base for connecting the bogie to the end near the second wheel drive, and one-end fixing member for connecting the bogie to the end near the first wheel drive.

9. A test bench for realizing bogie loading tests according to claim 8, characterized in that, The two-end fasteners include fastener A for connecting the two-end frame beams of the bogie near the second-position wheel drive side, and fastener B for connecting the end of the side beam of the frame near the second-position wheel drive side. The fastener A includes a support base installed on the rail surface base, a U-shaped clamp installed on the bogie, and a connecting ring with one end connected to the U-shaped clamp and the other end connected to the support base. The connecting ring is fitted inside the U-shaped clamp and the support base. The fastener B includes a connecting plate installed on the rail base and an annular steel cable connected to the connecting plate and to the bogie. The one-end fixing component includes a support, a connector mounted on the bogie, and a connecting rod for connecting the support and the connector; the connecting rod is hinged to the support and the connector and is rotatably engaged about the vertical direction.

10. A test bench for realizing bogie loading tests according to any one of claims 2-9, characterized in that, The loading mechanism includes a gantry frame mounted on two sets of support columns, a fixing member mounted on the gantry frame, a vertical actuator mounted on the fixing member and moving vertically to apply load to the bogie, a crossbeam connected to the bottom of the vertical actuator, and an abutment plate mounted on the bottom of the crossbeam.

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