A performance test bench for rack rail bogies and a method of using the same

Abstract

The present application relates to the technical field of rail transit test equipment, and particularly relates to a performance test bench for rack rail bogies and a use method thereof. The performance test bench for rack rail bogies comprises a test bench rack, an adjustment bench arranged above the test bench rack, a rear side of the adjustment bench hinged to the test bench rack, the adjustment bench capable of rotating along the hinge point and locking the position, the adjustment bench provided with a driving part, the driving part capable of rotating, a bogie arranged on a top surface of the adjustment bench, the bogie comprising a frame, a rack rail wheel and a plurality of walking wheels, the rack rail wheel and the walking wheels capable of rotating, the driving part rotating to drive the rack rail wheel to rotate, and the adjustment bench rotating to drive the bogie to tilt. The present application overcomes the defects in the prior art that the rack rail test device is designed for a single working condition, lacks the capability of carrying out comprehensive tests on dynamic slopes or on the whole rack rail bogie, and the data obtained by the test is insufficient in reference.

Description

Technical Field

[0001] This invention relates to the technical field of rail transit testing equipment, and in particular to a performance testing bench for a rack bogie and its method of use. Background Technology

[0002] The cogwheel train is a new type of rail transport used in mountain railways, and can be considered a "climbing expert" in the railway family. Its track design is quite unique; in addition to the conventional two rails, a third rail with teeth, the cogwheel, is laid in the middle. Correspondingly, a gear system is installed at the bottom of the train that precisely matches the cogwheel. When the train climbs a slope, the gears in the running gear mesh tightly with the cogwheel, and the rotation of the gears generates a biting force, propelling the train forward. This ingenious design allows it to easily handle steep slopes.

[0003] Due to its unique operating environment and structural design, structural response analysis is of great significance for rack trains. When operating in complex mountainous areas, it must not only withstand the loads of conventional wheel-rail trains but also cope with the dynamic forces generated by rack meshing, while facing additional challenges from steep slopes and curves. Furthermore, harsh environments such as high altitudes and large temperature differences also affect the train's structural performance. Structural response analysis allows for in-depth research into the train's vibration, stress distribution, and fatigue characteristics under various operating conditions, thereby optimizing the train's structural design, ensuring the strength and stability of key components, improving the train's operational safety and reliability, extending its service life, and providing a scientific basis for maintenance and repair, ensuring the efficient and safe operation of rack trains.

[0004] Existing rack bogie testing equipment is mostly designed for single working conditions and lacks the ability to conduct comprehensive tests on dynamic slopes or the entire rack bogie, resulting in insufficient reference value for the test data. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing rack bogie test devices, which are mostly designed for single working conditions and lack the ability to conduct comprehensive tests on dynamic slopes or the entire rack bogie, resulting in insufficient reference value of the test data. This invention provides a performance test bench for rack bogies and its usage method.

[0006] In a first aspect, the present invention provides a test bench for the meshing performance of gears and rails in a rack bogie, comprising: Test bench frame; An adjustment platform is provided above the test bench frame. The rear side of the adjustment platform is hinged to the test bench frame. The adjustment platform can rotate and lock its position along the hinge point. The adjustment platform is provided with an active component that can rotate. A bogie is mounted on the top surface of the adjusting platform. The bogie includes a frame, a rack wheel, and several running wheels. The rack wheel and the running wheels are rotatable. The rotation of the driving member drives the rack wheel to rotate, and the rotation of the adjusting platform causes the bogie to tilt.

[0007] During the experiment, the side where the hinge point is located is the rear side of the adjustment platform.

[0008] One side of the adjustment platform is hinged to the test bench frame. The platform can rotate and lock around the hinge point, thus simulating different track gradients and operating conditions as closely as possible. This allows for structural response testing of dynamic gradients, improving the accuracy of the test results. A bogie is installed, comprising rack wheels and running wheels, both of which can rotate. This closely approximates the actual operation of rack railways, further enhancing the accuracy and reliability of the test results.

[0009] Preferably, a telescopic device is provided between the adjustment platform and the test bench frame, and the extension or shortening of the telescopic device can drive the adjustment platform to rotate along the hinge point.

[0010] An extension device is installed, which extends or shortens the adjustment table to rotate along the hinge point, facilitating adjustment.

[0011] Preferably, the telescopic device is hinged to the adjustment platform and the test bench frame on both sides.

[0012] The telescopic device is hinged to the adjustment table and the test bench frame on both sides, which will not affect the rotation of the adjustment table around the hinge point. Preferably, it further includes a stop member disposed on the rear side of the adjustment platform and connected to the rear travel wheel of the bogie.

[0013] During the actual test, the height of the front side of the adjustment platform was higher than that of the rear side, so a stop was set to prevent the bogie from slipping as much as possible.

[0014] Preferably, a pressure sensor is provided between the stop and the traveling wheel.

[0015] A pressure sensor is installed between the stop and the traveling wheel to measure the pressure applied by the traveling wheel to the stop. The rotational speed of the rack wheel is adjusted according to the pressure measured by the pressure sensor, which can closely approximate the actual working environment of the rack railway and thus ensure the accuracy of the test as much as possible.

[0016] Preferably, the driving component is a rack and pinion chain and a chain gear. The rotation of the chain gear drives the rack and pinion chain to rotate. The rack and pinion chain meshes with the toothed wheel, and the rotation of the rack and pinion chain drives the toothed wheel to rotate.

[0017] The driving components are rack and pinion chains and chain gears, which are designed to make the contact pattern with the rack and pinion wheels as close as possible to the actual operation of rack and pinion trains, thereby improving the accuracy of the test results.

[0018] Preferably, the adjustment platform is further provided with a chain support plate, which is used to support the rack chain and the toothed wheel.

[0019] Installing chain support plates helps improve the stability of the structure.

[0020] Preferably, the adjustment platform is further provided with an active support wheel and a passive support wheel, both of which are connected to the traveling wheel. The active support wheel and the passive support wheel are respectively provided on the front and rear sides of any one of the traveling wheels. The rotation of the active support wheel drives the traveling wheel to rotate, and the rotation of the traveling wheel drives the passive support wheel to rotate.

[0021] By setting up support wheels, and having both an active support wheel and a passive support wheel on the front and rear sides of each support wheel, it is possible to make each support wheel rotate, which can simulate the situation in the actual use scenario of a rack train as much as possible, thus improving the accuracy of the test results.

[0022] Preferably, the top surface of the adjustment platform is further provided with at least two rails, the length direction of which is parallel to the travel direction of the bogie, and the position of which is adapted to the position of the travel wheels of the bogie.

[0023] The rails are installed in a position that is adapted to the position of the traveling wheels, so that the bogie can easily enter or leave the adjustment platform.

[0024] In a second aspect, the present invention provides a method of using a performance test bench for a rack-and-gear bogie, comprising the following steps: S1. Place the bogie on the top surface of the adjusting platform, connect the gear wheel and the driving component, rotate the adjusting platform along the hinge point to the predetermined position and fix it. S2. Rotate the driving component at a constant speed, and the driving component drives the toothed wheel to rotate at a constant speed; increase the rotation speed of the toothed wheel until the gravitational component of the bogie in the direction parallel to the top surface of the adjustment platform is balanced; S3. Conduct a dynamic response test of the rack train. After the test is completed, return the adjustment platform to its original position and drive the traveling wheels to move and disengage from the adjustment platform to complete the dynamic response test of the rack train under simulated slope conditions.

[0025] Uniform rotation of the driving component maintains a constant rotation frequency of the rack and pinion wheel, facilitating accurate extraction of the rack and pinion wheel's inherent vibration characteristics and minimizing interference from speed fluctuations in the spectral analysis. Furthermore, with a constant rack and pinion wheel rotation frequency, any changes to the angle between the adjustment platform and the test bench frame can be minimized to eliminate speed interference and clearly define the design critical load. Accelerated rotation of the driving component increases the rack and pinion wheel rotation frequency, simulating the climbing condition of the rack and pinion bogie. The traction force generated by the rack and pinion wheel meshing with the rack and pinion wheel reduces the component of force on the bogie in the downhill direction to zero. In the dynamic response test of the rack and pinion train, the driving component can be rotated uniformly first, then accelerated; alternatively, it can be accelerated first, then rotated uniformly. The gravitational component of the bogie in the direction parallel to the top surface of the adjustment platform is balanced, meaning the rear running wheels no longer transmit pressure to the components behind them.

[0026] This method can simulate sudden changes in gradient during the operation of a rack train and can also eliminate the influence of speed to extract the inherent vibration characteristics of the rack wheels, making it applicable to various working conditions. Furthermore, by directly setting up the bogie for testing, it more closely resembles the actual use of rack trains, thus improving the accuracy of the test results.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention provides a test bench for the gear-rail meshing performance of a rack-and-gear bogie, comprising a test bench frame, an adjustment platform, and a bogie. One side of the adjustment platform is hinged to the test bench frame, and the adjustment platform can rotate and lock along the hinge point, thereby simulating different track gradients and various operating conditions as closely as possible. It enables structural response testing under dynamic gradients, improving the accuracy of the test results. The bogie includes rack-and-gear wheels and running wheels, both of which are rotatable, closely mimicking the actual operation of rack-and-gear railways, further enhancing the accuracy and reliability of the test results. This application overcomes the shortcomings of existing rack-and-gear test devices, which are mostly designed for single operating conditions and lack the ability to conduct comprehensive tests on dynamic gradients or the entire rack-and-gear bogie, resulting in insufficient data reliability.

[0028] 2. This invention provides a method for using a performance test bench for rack and pinion bogies. First, the bogie is placed on the top surface of an adjustment platform, and the platform is rotated along the hinge point. Then, the rack and pinion wheels are rotated at both constant and accelerated speeds, and finally, a dynamic response study is conducted. This method can simulate the climbing conditions during rack and pinion train operation, and can also eliminate the influence of speed to extract the inherent vibration characteristics of the rack and pinion wheels, making it suitable for various working conditions. Furthermore, directly setting up the bogie for testing more closely reflects the actual usage of rack and pinion trains, which helps improve the accuracy and reference value of the test results. Attached Figure Description

[0029] Figure 1This is a schematic diagram of a test bench for the meshing performance of gears and rails in a geared bogie according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of a test bench for the meshing performance of gears and rails in a geared bogie according to the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the rack and pinion chain of the present invention; Figure 4 This is a flowchart illustrating a method of using a performance test bench for a rack bogie according to the present invention.

[0030] icon: 1-Test bench frame, 101-Hydraulic telescopic rod, 102-Hinge point, 103-Chain support plate, 104-Support rod, 201-Rack and pinion chain, 2011-Gear, 2012-Chain link, 2013-Roller, 202-Chain gear, 203-Gearbox, 204-Sprocket motor, 3011-Active support wheel, 3012-Passive support wheel, 302-Support wheel motor, 303-Stop component, 304-Rail, 4-Bogie, 401-Rack and pinion wheel, 402-Traveling wheel. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0032] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of the present invention is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the present invention or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a particular device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on the present invention.

[0033] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but that it can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0034] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0035] Furthermore, in the description of the embodiments of the present invention, "several", "more than", and "a number of" represent at least two. The number can be any number, such as 2, 3, 4, 5, 6, 7, 8, or 9, and can even exceed nine.

[0036] Furthermore, in the description of the technical solution of this invention, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0037] Example 1 like Figures 1 to 3 As shown, a test bench for the meshing performance of gears and rails in a rack bogie includes: Test bench frame 1; An adjustment platform is provided above the test bench frame 1. The rear side of the adjustment platform is hinged to the test bench frame 1. The adjustment platform can rotate and lock its position along the hinge point 102. The adjustment platform is provided with an active component that can rotate. The bogie 4 is disposed on the top surface of the adjustment platform. The bogie 4 includes a frame, a rack wheel 401 and a plurality of running wheels 402. The rack wheel 401 and the running wheels 402 are rotatable. The rotation of the drive member drives the rack wheel 401 to rotate. The rotation of the adjustment platform causes the bogie 4 to tilt.

[0038] In this embodiment, the bogie 4 includes four traveling wheels 402 and one rack wheel 401. The rack wheel 401 is disposed between the two front traveling wheels 402, as shown below. Figure 1 and Figure 2 As shown, the arrangement of the rack wheels 401 as close as possible to the rack train helps to ensure the accuracy of the test results.

[0039] During the experiment, the side where hinge point 102 is located is the rear side of the adjustment platform.

[0040] One side of the adjustment platform is hinged to the test bench frame 1. The adjustment platform can rotate and lock along the hinge point 102, thereby simulating the different gradients of the rack railway in actual operation as closely as possible, involving different working conditions. It is capable of conducting structural response tests on dynamic gradients, which helps improve the accuracy of the test results. A bogie 4 is provided, which includes rack wheels 401 and traveling wheels 402. The rack wheels 401 and traveling wheels 402 can rotate, closely resembling the actual operation of the rack railway, which helps improve the accuracy of the test results.

[0041] Furthermore, the top surface of the test bench frame 1 is provided with a plurality of support rods 104, the two ends of which are respectively connected to the top surface of the test bench frame 1 and the bottom surface of the adjustment platform. In this embodiment, at least one set of support rods 104 is included, and one set of support rods 104 includes a first support rod 104 located in front of the front travel wheel 402 and a second support rod 104 located behind the rear travel wheel 402. One side of the adjustment platform is hinged to the second support rod 104, and the other side can be placed on top of the first support rod 104. The distance from the bottom surface of the adjustment platform to the first support rod 104 is adjustable.

[0042] Furthermore, a telescopic device is provided between the top surface of the test bench frame 1 and the bottom surface of the adjustment platform. In this embodiment, the telescopic device is a hydraulic telescopic rod 101, with both ends of the hydraulic telescopic rod 101 hinged to the test bench frame 1 and the adjustment platform. The extension or shortening of the hydraulic telescopic rod 101 causes the adjustment platform to rotate along the hinge point 102 of the second support rod 104, thereby adjusting the angle between the adjustment platform and the test bench frame 1, and consequently causing the bogie 4 to tilt, which can more closely resemble the actual working environment of a rack railway and is beneficial to improving the accuracy of rack railway test results. In other embodiments, the hydraulic telescopic rod 101 can be replaced by a pneumatic telescopic sleeve, a ball screw telescopic system, or a scissor lift mechanism; this application does not impose any limitations.

[0043] Furthermore, it also includes a stop 303, which is disposed on the rear side of the adjustment platform and connected to the rear travel wheel 402 of the bogie 4. The inclined adjustment platform causes a separation of gravity in the direction parallel to the platform for the bogie 4. When the rotational speed of the gear wheel 401 of the bogie 4 is not fast enough, it cannot balance the gravitational component in this direction. Therefore, the stop 303 is provided to minimize displacement of the bogie 4 and prevent interference with the test. Furthermore, a pressure sensor is provided between the stop 303 and the traveling wheel 402. The pressure sensor can measure the pressure exerted by the traveling wheel 402 on the stop 303. When the pressure exerted by the traveling wheel 402 on the stop 303 is 0, it can be considered that the bogie 4 is simulating a sudden change in gradient during the climbing process of a rack train. In actual use, the pressure sensor can also be connected to a display module or an alarm module. The display module shows the pressure received by the pressure sensor; or when the pressure received by the pressure sensor is 0, the alarm module emits an audible warning. The specific connection structure can refer to existing pressure sensor connection systems, and this application is not limited thereto.

[0044] Furthermore, the driving components are a rack and pinion chain 201 and a chain gear 202. The rotation of the chain gear 202 drives the rack and pinion chain 201 to rotate. The rack and pinion chain 201 meshes with the rack and pinion wheel 401, and the rotation of the rack and pinion chain 201 drives the rack and pinion wheel 401 to rotate. The rack and pinion chain 201 and chain gear 202 closely approximate the usage scenario of a rack and pinion train, thus improving the accuracy of the test results. In this embodiment, the rack and pinion chain 201 is driven by a sprocket motor 204, which is also connected to a gearbox 203, enabling control of the rotation speed of the rack and pinion chain 201, thereby simulating different operating conditions during the operation of a rack and pinion train. The adjustment platform is also equipped with a chain support plate 103, which supports the rack and pinion chain 201 and the rack and pinion wheel 401.

[0045] Furthermore, the adjustment platform is also equipped with an active support wheel 3011 and a passive support wheel 3012. Both the active support wheel 3011 and the passive support wheel 3012 are connected to the traveling wheel 402. The active support wheel 3011 and the passive support wheel 3012 are respectively located on the front and rear sides of each traveling wheel 402. The rotation of the active support wheel 3011 drives the traveling wheel 402 to rotate, and the rotation of the traveling wheel 402 drives the passive support wheel 3012 to rotate. In this embodiment, an active support wheel 3011 and a passive support wheel 3012 are respectively located on the front and rear sides of a traveling wheel, which not only drives the traveling wheel 402 to rotate but also supports it. The active support wheel 3011 and the support wheel motor 302 are connected by a belt, and the support wheel motor 302 drives the active support wheel 3011 to rotate. The support wheel motor 302 is located below the active support wheel 3011, at the lower part of the top surface of the adjustment platform, and is used to simulate the adhesive operation of the gear bogie (non-gear meshing operation).

[0046] Furthermore, the top surface of the adjustment platform is also provided with at least two steel rails 304. The length direction of the steel rails 304 is parallel to the traveling direction of the bogie 4, and the position of the steel rails 304 is adapted to the position of the traveling wheels 402 of the bogie 4. In this embodiment, as... Figure 1 and Figure 2 As shown, the rail 304 is broken into multiple sections below the traveling wheel 402, reserving space for the active support wheel 3011 and the passive support wheel 3012. The rail 304 is used to support the bogie 4 as it enters or exits the adjustment platform.

[0047] In this embodiment, as Figure 3 As shown, the rack and pinion chain 201 includes teeth 2011, links 2012 and rollers 2013. The teeth 2011 and links 2012 are staggered, and the rollers 2013 and links 2012 are positioned correspondingly. The spacing between two adjacent teeth 2011 matches the tooth pitch of the rack and pinion wheel 401, which facilitates the meshing of the rack and pinion chain 201 with the rack and pinion wheel 401.

[0048] Example 2 like Figure 4 As shown, a method for using a performance test bench for a rack-and-gear bogie, using a rack-and-gear meshing performance test bench as described in Example 1, includes the following steps: S1. The bogie 4 drives along the rail 304 into the top surface of the adjustment platform, meshes the rack wheel 401 and the rack chain 201, extends the hydraulic telescopic rod 101, and rotates the adjustment platform along the hinge point 102 to the predetermined position and fixes it. S2. The sprocket motor 204 starts, driving the chain gear 203 to rotate at a constant speed. The rotation of the chain gear 203 drives the toothed wheel 401 to rotate at a constant speed. The rotation direction of the toothed wheel 401 is rearward at the meshing point with the rack and chain 201. In this embodiment, as shown... Figure 1 and Figure 2 As shown, the toothed wheel 401 rotates counterclockwise; then the rotation speed of the toothed wheel 401 is increased until the pressure transmitted from the traveling wheel 402 to the rear stop 303 is 0. S3. Conduct a dynamic response test of the rack train. After the test is completed, return the adjustment platform to its original position and drive the traveling wheel 402 to move and disengage from the adjustment platform to complete the dynamic response test of the rack train under simulated slope conditions.

[0049] In this embodiment, step S2 first causes the toothed wheel 401 to rotate at a constant speed, and then causes the toothed wheel 401 to rotate at an accelerated speed. This can eliminate the thermodynamic interference of the accelerated rotation of the toothed wheel 401 and directly separate the dynamic load increment caused by inertial force. However, in actual experimental processes, the toothed wheel 401 can also be accelerated first and then rotated at a constant speed; this application does not impose any restrictions.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A test bench for the meshing performance of gears and rails in a rack bogie, characterized in that, include: Test bench frame (1); An adjustment platform is provided above the test bench frame (1). The rear side of the adjustment platform is hinged to the test bench frame (1). The adjustment platform can rotate and lock its position along the hinge point (102). The adjustment platform is provided with an active member that can rotate. Bogie (4), the bogie (4) is disposed on the top surface of the adjustment platform, the bogie (4) includes a frame, a rack wheel (401) and a plurality of running wheels (402), the rack wheel (401) and the running wheels (402) are rotatable, the drive member rotates to drive the rack wheel (401) to rotate, the adjustment platform rotates to drive the bogie (4) to tilt; The driving components are a rack and pinion chain (201) and a chain gear (202). The chain gear (202) rotates to drive the rack and pinion chain (201) to rotate. The rack and pinion chain (201) meshes with the toothed wheel (401). The rotation of the rack and pinion chain (201) drives the toothed wheel (401) to rotate. The adjustment platform is also provided with an active support wheel (3011) and a passive support wheel (3012). The active support wheel (3011) and the passive support wheel (3012) are both connected to the walking wheel (402). The active support wheel (3011) and the passive support wheel (3012) are respectively provided on the front and rear sides of any one of the walking wheels (402). The rotation of the active support wheel (3011) drives the walking wheel (402) to rotate, and the rotation of the walking wheel (402) drives the passive support wheel (3012) to rotate.

2. The test bench for the meshing performance of gears and rails in a geared bogie according to claim 1, characterized in that, A telescopic device is provided between the adjustment platform and the test bench frame (1). The telescopic device can extend or shorten to drive the adjustment platform to rotate along the hinge point (102).

3. The test bench for the meshing performance of gears and rails in a geared bogie according to claim 2, characterized in that, The telescopic device is hinged to the adjustment table and the test bench frame (1) on both sides respectively.

4. The test bench for the meshing performance of gears and rails in a geared bogie according to claim 1, characterized in that, It also includes a stop (303) which is disposed on the rear side of the adjustment platform and is connected to the rear travel wheel (402) of the bogie (4).

5. The test bench for the meshing performance of gears and rails in a geared bogie according to claim 4, characterized in that, A pressure sensor is provided between the stop (303) and the traveling wheel (402).

6. The test bench for the meshing performance of gears and rails in a geared bogie according to claim 1, characterized in that, The adjustment platform is also provided with a chain support plate (103), which is used to support the rack chain (201) and the toothed wheel (401).

7. A test bench for the meshing performance of gears and rails in a geared bogie according to any one of claims 1-6, characterized in that, The top surface of the adjustment platform is also provided with at least two steel rails (304). The length direction of the steel rails (304) is parallel to the travel direction of the bogie (4), and the position of the steel rails (304) is adapted to the position of the travel wheel (402) of the bogie (4).

8. A method of using a performance test bench for a rack and pinion bogie, characterized in that, Using a test bench for the meshing performance of a gear and tooth rail of a bogie as described in any one of claims 1-7, the following steps are included: S1. Place the bogie (4) on the top surface of the adjustment platform, connect the gear wheel (401) and the driving component, rotate the adjustment platform along the hinge point (102) to the predetermined position and fix it. S2. Rotate the active component at a constant speed, and the active component drives the toothed wheel (401) to rotate at a constant speed; increase the rotation speed of the toothed wheel (401) until the gravitational component of the bogie (4) in the direction parallel to the top surface of the adjustment platform is balanced; S3. Conduct a dynamic response test of the rack train. After the test is completed, return the adjustment platform to its original position and drive the traveling wheel (402) to move and disengage from the adjustment platform to complete the dynamic response test of the rack train under simulated slope conditions.

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