Wheel drive running-in test bench and debugging method thereof

Abstract

The present application relates to the technical fields of wheel pair testing, and provides a wheel drive running-in test bench and a debugging method thereof.The wheel drive running-in test bench comprises a base, a support assembly arranged on the base, the support assembly having a support surface with adjustable X, Y and Z direction positions, and the support assembly comprising an axle box support part and a rotating shaft support part.The axle box support part comprises a box support part and a motor box support part, a first omnidirectional adjusting mechanism is arranged at the bottom of the box support part, a second omnidirectional adjusting mechanism is arranged at the bottom of the motor box support part, the rotating shaft support part comprises a first support part and a second support part, a first XZ adjusting mechanism is arranged at the bottom of the first support part, and a second XZ adjusting mechanism is arranged at the bottom of the second support part.Through the support assembly with adjustable support surface positions, various different types of wheel drives can be adapted, and the support assembly can be adaptively adjusted based on the type of wheel drive.

Description

Technical Field

[0001] This invention relates to the field of wheelset testing technology, and in particular to a wheel drive running-in test bench and its debugging method. Background Technology

[0002] The wheelset is the core component that connects the locomotive to the rails. It mainly consists of two wheels and an axle. The wheels are connected to both ends of the axle and are used for rolling contact with the corresponding rails. Each wheelset can be driven by a corresponding wheel drive, which includes a connected axle box and a motor housing. The axle runs through the axle box, and the motor is installed in the motor housing. The motor drives the axle to rotate through a gear transmission chain.

[0003] Before being put into use, wheel drives require a break-in test. During this test, the wheel drive is mounted on a test bench, the motor is started, and the rotation of the shaft is observed. Under current technology, wheel drives come in various models, each with different structures and dimensions. Therefore, a standardized fixture cannot be used to support different wheel drive models, increasing testing costs. Using different fixtures to test corresponding wheel drives requires specific fixture adjustments based on the wheel drive model, further increasing testing difficulty and workload.

[0004] Meanwhile, the wheel drive rotates at a very high speed during testing. Even a slight deviation in the installation accuracy of the wheel drive on the test bench can cause severe vibrations, making normal testing impossible or even damaging the wheel drive or the test bench. This further increases the difficulty of installing the wheel drive, reduces work efficiency, and causes great trouble for technicians.

[0005] Therefore, it is necessary to provide an improved wheel drive running-in test bench and its debugging method to solve the above-mentioned technical problems. Summary of the Invention

[0006] To address the problems of existing technologies, one embodiment of the present invention provides a wheel drive running-in test bench for supporting a wheel drive. The wheel drive includes an axle box, a shaft, and a motor housing that is driveably connected to the shaft. The axle box has a first side and a second side located on opposite sides along the axial direction of the shaft. The axle box has a first end and a second end that are opposite to each other along the axial direction of the shaft. The first end is provided with a first bearing seat, and the second end is provided with a second bearing seat. The shaft passes through the first bearing seat and the second bearing seat. The motor housing is connected to the second side of the axle box. The wheel drive running-in test bench includes: a base; a support assembly disposed on the base, the support assembly having a support surface that can be adjusted in the X, Y, and Z directions, and the support assembly including an axle box support portion. The axle box support includes a housing support and a motor housing support. A first omnidirectional adjustment mechanism is configured at the bottom of the housing support, and the housing support is matched with the housing portion of the axle box in the X, Y, and Z directions. A second omnidirectional adjustment mechanism is configured at the bottom of the motor housing support, and the motor housing support is matched with the motor box in the X, Y, and Z directions. The shaft support includes a first support and a second support. A first XZ adjustment mechanism is configured at the bottom of the first support, and the first support is matched with one end of the shaft in the X and Z directions. A second XZ adjustment mechanism is configured at the bottom of the second support, and the second support is matched with the other end of the shaft in the X and Z directions.

[0007] In some embodiments, the top of the support component is configured with a positioning component that matches the shape of the corresponding wheel drive structure. The top of the positioning component is provided with a symmetrical groove, the symmetrical groove matches the shape of the corresponding wheel drive structure, and the symmetry line of the symmetrical groove coincides with the symmetry line of the support component.

[0008] In some embodiments, the wheel drive running-in test bench further includes a control module, which is communicatively connected to the first omnidirectional adjustment mechanism, the second omnidirectional adjustment mechanism, the first XZ adjustment mechanism, and the second XZ adjustment mechanism; the support surface includes a first support surface disposed on the first support portion, a second support surface disposed on the second support portion, a third support surface disposed on the housing support portion, and a fourth support surface disposed on the motor housing support portion; the first bearing seat is fixedly placed on the first support surface, the second bearing seat is fixedly placed on the second support surface; the axle box is fixedly placed on the third support surface, and the motor housing is fixedly placed on the fourth support surface.

[0009] In some embodiments, the first bearing housing includes a first extension frame arranged radially, and a first auxiliary wheel is provided at one end of the first extension frame away from the first bearing housing; the second bearing housing includes a second extension frame arranged radially, and a second auxiliary wheel is provided at one end of the second extension frame away from the second bearing housing; the support assembly further includes an auxiliary support, the auxiliary support including a first auxiliary support matched with the first auxiliary wheel and a second auxiliary support matched with the second auxiliary wheel.

[0010] In some embodiments, the auxiliary support includes a vertical support rod and a horizontal support rod fixedly disposed at the top of the vertical support rod. A reinforcing fixing part is provided between the vertical support rod and the horizontal support rod. A horizontal limiting part and a longitudinal support part are provided at the top of the horizontal support rod. At least a portion of the first extension frame / second extension frame passes through the corresponding horizontal limiting part. The horizontal limiting part includes a horizontal groove and a first symmetrical inclined surface disposed at the top of the horizontal groove and inclined outward. The width of the horizontal groove is equal to the width of the extension frame. The first auxiliary wheel / second auxiliary wheel is engaged with the corresponding longitudinal limiting part. A second symmetrical inclined surface is provided at the top of the longitudinal limiting part. The second symmetrical inclined surface is compatible with auxiliary wheels of different sizes.

[0011] In some embodiments, the housing support includes a third support and a housing support platform disposed on top of the third support. A matrix mounting plate is disposed on top of the third support, and the housing support platform is fixedly connected to the third support via the matrix mounting plate. The housing support platform includes a vertically disposed support ridge and a third support surface disposed on top of the support ridge. A vibration damping layer is disposed between the support ridge and the third support surface. A guide seat is detachably disposed on top of the third support surface. The guide seat has a guide surface facing the wheel drive, and the guide surface is used to guide the wheel drive to move and be fixed on the third support surface.

[0012] In some embodiments, the motor housing support includes a fourth support and a motor housing support platform disposed on the top of the fourth support, wherein a fourth support surface is disposed on the motor housing support platform; a stepped surface is disposed on the fourth support surface, and the stepped surface is matched and disposed according to the reliable meshing position of the gears in different motor housings.

[0013] One embodiment of the present invention provides a debugging method for a wheel drive running-in test bench. The method is applied to the wheel drive running-in test bench, which includes a first support surface corresponding to one end of the wheel drive shaft, a second support surface corresponding to the other end of the wheel drive shaft, a third support surface corresponding to the axle box of the wheel drive, and a fourth support surface corresponding to the motor housing of the wheel drive. The method includes: acquiring wheel drive information; determining a first adjustment parameter corresponding to the first support surface, a second adjustment parameter corresponding to the second support surface, a third adjustment parameter corresponding to the third support surface, and a fourth adjustment parameter corresponding to the fourth support surface based on the wheel drive information; adjusting the wheel drive running-in test bench based on the first adjustment parameter, the second adjustment parameter, the third adjustment parameter, and the fourth adjustment parameter to obtain an adjusted test bench; detecting the relative position of each support surface and the base in the adjusted test bench; determining the positional error between each support surface and the standard position based on the relative position; determining a correction parameter based on the positional error; and correcting the relative position of at least one support surface and the base based on the correction parameter.

[0014] In some embodiments, the wheel drive information includes the dimensions of the axle box, the dimensions of the shaft, and the relative position information of the shaft relative to the axle box. Determining the first adjustment parameter corresponding to the first support surface and the second adjustment parameter corresponding to the second support surface based on the wheel drive information includes: determining the planar position information of the shaft based on the dimensions of the axle box; determining the height position information of the shaft based on the relative position information; determining the three-dimensional position information of the shaft based on the planar position information and the height position information; and determining the first adjustment parameter corresponding to the first support surface and the second adjustment parameter corresponding to the second support surface based on the dimensions of the shaft and the three-dimensional position information. The parameters; the wheel drive running-in test bench includes a guide seat disposed on the third support surface, and determines a third adjustment parameter corresponding to the third support surface and a fourth adjustment parameter corresponding to the fourth support surface based on the wheel drive information, including: determining the fixed position information of the axle box based on the relative position information and the three-dimensional position information of the rotating shaft; determining the guide position information of the guide seat based on the fixed position information; performing coordinate transformation on the guide position information to generate guide coordinates; generating the third adjustment parameter for the third support surface based on the guide coordinates; determining the support position of the motor housing based on the fixed position information, and generating the fourth adjustment parameter corresponding to the fourth support surface based on the support position of the motor housing.

[0015] In some embodiments, the fourth support surface includes a stepped surface. The step of determining the support position of the motor housing based on the fixed position information and generating a fourth adjustment parameter corresponding to the fourth support surface based on the support position of the motor housing includes: acquiring the chassis size data of the motor housing and the reliable meshing position of the motor housing and the axle box; determining the support position of the motor housing based on the fixed position information, the chassis size data, and the reliable meshing position, wherein the support position includes a horizontal support position and a vertical support position; determining the support step of the stepped surface based on the vertical support position, and determining the support point of the support step based on the horizontal support position; and generating a fourth adjustment parameter corresponding to the fourth support surface based on the support step and the support point.

[0016] The present invention has at least the following technical effects through the technical solution provided by the present invention:

[0017] By employing a support assembly with adjustable support surface position, it can accommodate various different wheel drive models. Furthermore, the support assembly can be adaptively adjusted based on the wheel drive model, increasing the applicability of the wheel drive break-in test bench and reducing the equipment costs required for testing. The control system facilitates automated and high-precision adjustment of the support assembly, reducing the difficulty of debugging the wheel drive break-in test bench and improving its debugging efficiency. Attached Figure Description

[0018] The present invention will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting, and in these embodiments, the same reference numerals denote the same structures, wherein:

[0019] Figure 1 This is a schematic diagram of the structure of a wheel drive running-in test bench according to some embodiments of the present invention;

[0020] Figure 2 This is a schematic diagram of wheel drive installation according to some embodiments of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the first support portion according to some embodiments of the present invention;

[0022] Figure 4 This is another structural schematic diagram of the first support portion shown in some embodiments of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of an auxiliary support according to some embodiments of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the box support portion according to some embodiments of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the motor housing support portion according to some embodiments of the present invention;

[0026] Figure 8 This is a flowchart illustrating the debugging method of a wheel drive running-in test bench according to some embodiments of the present invention.

[0027] Explanation of reference numerals in the attached drawings: 100, base; 110, ...; 200, support assembly; 210, first support part; 211, first slide rail; 212, first horizontal part; 213, first lifting part; 214, first support block; 215, first adjusting support; 220, second support part; 230, third support; 231, third horizontal part; 232, third lifting part; 233, box support platform; 234, first omnidirectional adjustment mechanism; 2341, third X rail; 2342, third X base; 2343, third Y rail; 2344, third Y base; 235, third support surface; 236 240. Guide seat; 241. Fourth support; 242. Fourth horizontal part; 243. Fourth lifting part; 244. Motor box support platform; 245. Second omnidirectional adjustment mechanism; 2441. Fourth X track; 2442. Fourth X base; 2443. Fourth Y track; 2444. Fourth Y base; 250. Auxiliary support; 251. Vertical support rod; 252. Horizontal support rod; 253. Longitudinal limiting part; 254. Horizontal limiting part; 300. Wheel drive; 310. Axle box; 311. First bearing seat; 312. First auxiliary wheel; 320. Rotating shaft; 330. Motor box; 800. Process. Detailed Implementation

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of the present invention. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0029] As indicated in this invention and the claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0030] Under current technological conditions, different models of wheel drives have different structures and dimensions, requiring different test benches to support them during break-in tests, increasing testing costs. Furthermore, different test benches need to be specifically adjusted for different wheel drives, increasing the difficulty of adjustment. This invention provides a wheel drive break-in test bench that, by adjusting the different positions of the support surface, can adapt to support different types of wheel drives, thus improving the applicability of the wheel drive break-in test bench. More details about the wheel drive break-in test bench can be found in the following description.

[0031] Figure 1 This is a schematic diagram of the structure of a wheel drive running-in test bench according to some embodiments of the present invention. Figure 2 This is a schematic diagram of wheel drive installation according to some embodiments of the present invention.

[0032] like Figure 1 , Figure 2 As shown, the wheel drive running-in test bench is used to support the wheel drive 300, so that the wheel drive 300 can be run-in tested on the wheel drive running-in test bench.

[0033] The wheel drive 300 is used to drive the wheelset rotation of the locomotive. In some embodiments, the wheel drive 300 may include an axle box 310, a shaft 320, and a motor housing 330 that is driveably connected to the shaft 320.

[0034] The axle box 310 serves as the mounting base for mounting the rotating shaft 320.

[0035] In some embodiments, the axle box 310 has a first side and a second side located on opposite sides of the axial direction of the rotating shaft 320. The axle box 310 has a first end and a second end that are opposite to each other along the axial direction of the rotating shaft 320. The first end is provided with a first bearing seat 311, and the second end is provided with a second bearing seat.

[0036] The axle 320 serves as a mounting base for mounting rollers to form wheelsets. The wheelsets can be used to support the locomotive; when the wheelsets rotate, they roll on the rails, causing the locomotive to move relative to the rails. The axle 320 can extend through a first bearing housing 311 and a second bearing housing. In some embodiments, the first bearing housing 311 houses a first bearing connected to the axle 320, and the second bearing housing houses a second bearing connected to the axle 320. In some embodiments, the axle box 310 can have an internal receiving space for accommodating a gear drive chain. The gear drive chain can be driven by the axle 320.

[0037] The motor housing 330 serves as a mounting base for installing the motor, which outputs torque and drives the rotating shaft 320 to rotate via a gear transmission chain. The interior of the motor housing 330 can form a receiving space to accommodate the motor.

[0038] In some embodiments, the motor housing 330 may be connected to the second side of the axle housing 310.

[0039] The wheel drive running-in test bench may include a base 100 and a support assembly 200.

[0040] The base 100 serves as the mounting base for mounting the support component 200.

[0041] In some embodiments, the base 100 has a mounting surface, and the support assembly 200 can be disposed on the mounting surface. In some embodiments, to ensure the strength and load-bearing capacity of the base 100, the base 100 can be made of a metal material, such as cast iron, carbon steel, aluminum alloy, or other metal materials. The upper surface of the base 100 can serve as the mounting surface.

[0042] In some embodiments, the lower surface of the base 100 may be provided with multiple reinforcing ribs, which may be arranged intersectingly. The reinforcing ribs can improve the overall strength and bending resistance of the base 100, and ensure the load-bearing capacity and flatness of the mounting surface of the base 100.

[0043] In some embodiments, the upper surface of the base 100 may have a variety of shapes, such as rectangle, square, circle or other shapes, and the specific shape may be set according to actual needs.

[0044] In some embodiments, the base 100 is provided with a first reference line and a second reference line (not shown in the figure) that are perpendicular to each other. The first reference line and the second reference line intersect to form the origin, and the first reference line points in the X direction (e.g., Figure 1 The second baseline points in the Y direction (e.g., in the X direction), and the second baseline points in the Y direction (e.g., in the X direction). Figure 1 Y direction in ).

[0045] The first and second reference lines can be used as reference references respectively. In some embodiments, the first and second reference lines can be set on the mounting plane. The origin can be located at one of the preset points on the mounting plane, such as at least one of the centroids of any coordinate reference hole, the centroid of the mounting plane, or the intersection of edges, and its specific location can be set according to actual needs. By setting the first and second reference lines, multiple support surfaces can be adjusted with reference to a unified reference, which facilitates the design and management of adjustment parameters, thereby improving the accuracy and efficiency of adjustment.

[0046] The support assembly 200 is used to support the wheel drive 300. In some embodiments, the support assembly 200 may be disposed on the base 100.

[0047] In some embodiments, the support component 200 has a support surface with adjustable X, Y, and Z-axis positions to support and limit the relative position of the drive 300 and the base 100.

[0048] The support surface is used to provide support at different locations of the wheel drive 300 for positioning and installation.

[0049] In some embodiments, the relative position of the support surface and the base 100 can be adjusted, for example, the relative position in the X and / or Y directions relative to the origin can be adjusted. In some embodiments, the relative height of the support surface and the base 100 can be adjusted. For example, in Figure 1 The relative height in the Z-axis direction can be adjusted.

[0050] In some embodiments, the first and second reference lines have corresponding scales, thereby facilitating real-time observation of the actual position of the support surface.

[0051] In some embodiments, multiple reinforcing pads are connected at the connection point between the support assembly 200 and the wheel drive 300, with the surface of the reinforcing pads facing the wheel drive 300 serving as the support surface. The material hardness of the reinforcing pads can be greater than or equal to the material hardness of the wheel drive 300. A high-strength fabric-reinforced rubber transition plate can be arranged below the reinforcing pads to absorb bearing housing vibration and prevent bearing housing resonance during running-in from affecting the vibration test results of the motor housing. When testing multiple wheel drives 300, repeated impacts during the loading and unloading of multiple wheel drives 300s on the support surface are avoided, which could lead to wear on the support surface and affect the positioning accuracy of the wheel drives 300. The material hardness of the V-shaped support assembly 200 can be less than the material hardness of the reinforcing pads to prevent damage to the outer surface of the bearing housing. In some embodiments, the reinforcing pads can be connected to the support assembly 200 in various ways, such as at least one of snap-fit, threaded connection, etc.

[0052] In some embodiments, a positioning structure may be provided on the support surface. The positioning structure may include various types, such as at least one of positioning grooves, positioning holes, positioning pins, and magnetic structures. Some structures on the wheel drive 300 may be adapted to the positioning structure, thereby improving the positioning accuracy and positioning efficiency of the wheel drive 300.

[0053] The support components include axle box support and shaft support.

[0054] In some embodiments, the axle box support includes a housing support and a motor housing support. The housing support provides support for the axle box 310 of the wheel drive 300. The motor housing support provides support for the motor housing 330 of the wheel drive 300.

[0055] A first omnidirectional adjustment mechanism 234 is configured at the bottom of the housing support, and the housing support and the housing portion of the axle box 310 are matched in the X, Y, and Z directions. A second omnidirectional adjustment mechanism 244 is configured at the bottom of the motor housing support, and the motor housing support and the motor housing 330 are matched in the X, Y, and Z directions.

[0056] The pivot support includes a first support 210 and a second support 220.

[0057] The first support portion 210 and the second support portion 220 are respectively used to provide support for both ends of the axle 320 of the wheel drive 300.

[0058] A first XZ adjustment mechanism is configured at the bottom of the first support part 210, and the first support part 210 and one end of the rotating shaft 320 are matched in the X and Z directions.

[0059] The first XZ adjustment mechanism is used to adjust the relative position of the support surface corresponding to the first support part 210 with the base 100 in the X and Z directions.

[0060] A second XZ adjustment mechanism is configured at the bottom of the second support 220, and the other end of the second support 220 and the rotating shaft 320 are matched in the X and Z directions.

[0061] The first support part 210, the second support part 220, the housing support part, and the motor housing support part provide support for different positions of the wheel drive 300 to provide positioning for the wheel drive 300, enabling the wheel drive 300 to maintain its required positional accuracy during the running-in test. By adjusting the positions of the first support part 210, the second support part 220, the housing support part, and the motor housing support part, different types of wheel drives 300 can be accommodated, thereby increasing the applicability of the wheel drive running-in test bench.

[0062] In some embodiments, the support surface includes a first support surface disposed on the first support portion 210, a second support surface disposed on the second support portion 220, a third support surface disposed on the housing support portion, and a fourth support surface disposed on the motor housing support portion.

[0063] The first bearing housing is fixedly placed on the first support surface, the second bearing housing is fixedly placed on the second support surface, the axle box is fixedly placed on the third support surface, and the motor housing is fixedly placed on the fourth support surface.

[0064] The wheel drive running-in test bench also includes a control module, which is communicatively connected to the first omnidirectional adjustment mechanism, the second omnidirectional adjustment mechanism, the first XZ adjustment mechanism, and the second XZ adjustment mechanism.

[0065] The control module is used to collect, analyze, and process data, and can implement control functions based on preset programs. For example, it controls the drive module to perform corresponding functions or actions. In some embodiments, the control module may include at least one of several, such as a processor, microprocessor, controller, cloud server, etc.

[0066] The first omnidirectional adjustment mechanism, the second omnidirectional adjustment mechanism, the first XZ adjustment mechanism, and the second XZ adjustment mechanism each have a drive module that is communicatively connected to the control module.

[0067] The drive module is used to drive the structure to move and / or rotate. For example, it drives at least a portion of the support assembly 200 to move and / or rotate in the X, Y, and Z directions.

[0068] In some embodiments, the drive module is configured to adjust the relative position of the support surface.

[0069] Relative position is used to describe the support surface in the vertical direction (e.g., Figure 1 (in the Z direction) and / or horizontal direction (e.g., Figure 1 The positional relationship between the origin and the X-direction and / or Y-direction.

[0070] In some embodiments, the support surface may have at least one reference point. For example, at least one of the following: the centroid of the support surface, the midpoint of the edge, a corner point, etc.

[0071] Relative position can be represented by the coordinates of a reference point, such as (x, y, z), where x represents the relative position of the reference point and the origin in the X-axis, y represents the relative position of the reference point and the origin in the Y-axis, and z represents the relative position of the reference point and the origin in the Z-axis. In some embodiments, the driving module can construct a spatial coordinate system based on a first reference line and a second reference line, for example, with the first reference line as the X-axis, the second reference line as the Y-axis, and a line perpendicular to both the first and second reference lines as the Z-axis. The coordinates can be within this spatial coordinate system.

[0072] In some embodiments, the reference point may have initial coordinates and adjusted coordinates. The initial coordinates may be recorded in the control module and read and retrieved by the control module. After the drive module adjusts the support surface, the control module can calculate the adjusted coordinates based on the initial coordinates and the adjustment parameters of the drive module.

[0073] The adjustment parameters are used to describe the relevant parameters of the drive module to adjust the support surface. For example, the adjustment parameters may include the distance that the drive module drives the support surface to move in at least one of the X, Y, and Z directions.

[0074] Once all support surfaces are adjusted to their positions, the wheel drive running-in test bench can be used to support the corresponding wheel drive 300. Multiple different positions on the wheel drive 300 can be connected to the corresponding support surfaces, thereby allowing the wheel drive 300 to simulate or maintain a preset posture, such as the posture of the wheel drive 300 during normal operation. At this time, the motor of the wheel drive 300 can be started to conduct a running-in test.

[0075] When testing different types of wheel drive 300s, the positions of multiple support surfaces are adjusted using the drive module to align them with the wheel drive 300s, allowing for testing of the corresponding wheel drive 300. The positions of the support surfaces and their correspondence with the wheel drive 300s are preset values, which can be set according to actual needs.

[0076] The wheel drive running-in test bench provided in some embodiments of the present invention, by employing a support component 200 with an adjustable support surface position, can adapt to various different models of wheel drives 300. Simultaneously, the support component 200 can be adaptively adjusted based on the model of the wheel drive 300, increasing the applicability of the wheel drive running-in test bench and reducing the equipment cost required for testing. The use of a control system facilitates the automated and high-precision adjustment of the support component 200, reducing the difficulty of debugging the wheel drive running-in test bench and improving its debugging efficiency.

[0077] Different models of wheel drive 300 may have different shapes in the first bearing housing, second bearing housing, axle box 310, and motor housing 330, such as flat surfaces, inclined surfaces, curved surfaces, and irregular surfaces. If the support surface is a single flat surface, it may not be able to fit precisely with the wheel drive 300, thus affecting the positioning accuracy.

[0078] In some embodiments, the top of the support assembly 200 is configured with a positioning component that matches the shape of the corresponding structure of the wheel drive 300. The top of the positioning component is provided with a symmetrical groove, the symmetrical groove matches the shape of the corresponding structure of the wheel drive, and the symmetry line of the symmetrical groove coincides with the symmetry line of the support assembly.

[0079] The positioning component provides support and positioning for the corresponding part of the wheel drive 300. The symmetrical groove can be mirror-symmetrically arranged on a virtual plane in the Z-direction, and the opening of the symmetrical groove can be oriented upwards along the Z-direction. The symmetrical groove provides at least two support positions for the corresponding part of the wheel drive 300, thus providing support from at least two directions. It can adaptively adjust the relative position of the corresponding part of the wheel drive 300 with respect to the shape of the corresponding part, thereby achieving automatic centering and alignment, and enhancing the constraint and positioning accuracy of the corresponding part of the wheel drive 300.

[0080] In some embodiments, the symmetrical groove can have various shapes, such as V-shape, arc shape, etc. In some embodiments, the symmetrical groove can be adapted to the shape of the corresponding part of the wheel drive 300. For example, when the shape of the corresponding part of the wheel drive 300 is irregular, the symmetrical groove can be an irregular structure.

[0081] In some embodiments, the positioning component can be detachably connected to the support assembly 200 in various ways, such as snap-fit, threaded connection, or adhesive bonding. This allows for the replacement of the corresponding positioning component depending on the type of wheel drive 300, thereby increasing its applicability.

[0082] Due to the large size and volume of the wheel drive 300, it is necessary to support it simultaneously at multiple circumferential positions during testing to maintain its stability. To provide stable support for the wheel drive 300 from multiple positions, the support assembly 200 can be designed as multiple separate components. Different components provide support for different positions of the wheel drive 300, and each component can be adjusted individually to meet the actual needs of the test. More information about the support assembly 200 can be found in the relevant description below.

[0083] Figure 3 This is a schematic diagram of the structure of the first support portion according to some embodiments of the present invention. Figure 4 This is another structural schematic diagram of the first support portion according to some embodiments of the present invention. Figure 5 This is a schematic diagram of the structure of an auxiliary support according to some embodiments of the present invention.

[0084] In some embodiments, such as Figure 1 , Figure 3 , Figure 4 As shown, the pivot support may include a first support 210.

[0085] The first support portion 210 is used to support the first end of the axle box 310 and limit the distance between the first end of the axle box 310 and the base 100. In some embodiments, the first support portion 210 can be designed in various structures, such as cylindrical, prismatic, irregular columnar structures or other shapes, and its specific shape can be set according to actual needs.

[0086] To ensure the strength and load-bearing capacity of the first support part 210, the first support part 210 can be made of metal materials, such as carbon steel, stainless steel, aluminum alloy, or other metal materials.

[0087] The support surface includes a first support surface disposed on the first support portion 210, which is used to support the first end. The first support surface may be disposed on the top surface and / or at least one side surface of the first support portion 210.

[0088] In some embodiments, the first support surface can be designed as a variety of surfaces, such as at least one of a plane, a stepped surface, a curved surface, a V-shaped surface, etc.

[0089] In some embodiments, a detachable first support block 214 may be provided on the top of the first support portion 210, and a first support surface may be provided on the first support block 214. The first support block 214 can be detachably connected to the top of the first support portion 210 in a variety of ways, such as at least one of snap-fit, threaded connection, etc. Different first support blocks 214 may be provided with first support surfaces of different shapes, so as to facilitate the operator to replace different first support blocks 214 and first support surfaces according to actual needs to adapt to the corresponding wheel drive 300.

[0090] In some embodiments, the first support block 214 can be designed as a variety of structures, such as at least one of a block structure, a plate structure, a frame structure, etc.

[0091] For example only, such as Figure 3 As shown, the upper surface of the first support block 214 is designed as a plane to serve as the first support surface, which is parallel to the upper surface of the base 100.

[0092] For example only, such as Figure 4 As shown, the upper surface of the first support block 214 is designed as a V-shaped surface to serve as the first support surface. The V-shaped surface has two symmetrically arranged inclined surfaces, which are set at an angle to the base 100, for example, 30°, 45°, 60°, or other values. The specific values ​​can be set according to actual needs. When the first bearing seat 311 has a surface of revolution or a partially symmetrical surface, the V-shaped design of the first support surface can center the first bearing seat 311, making the corresponding symmetrical surface of the first bearing seat 311 adaptively coplanar with the symmetrical surface of the V-shaped surface, which helps to improve the positioning accuracy of the first bearing seat 311.

[0093] In some embodiments, the first support surface may be adapted to at least a portion of the outer surface of the first bearing housing 311. This allows at least a portion of the first bearing housing 311 to fit against the first support surface, thereby improving the positioning accuracy of the first bearing housing 311.

[0094] The reference point may include a first reference point set on the first support surface. The first reference point may be a preset point on the first support surface, such as at least one of the following: centroid, midpoint of edge, endpoint of edge, endpoint of symmetry line, etc.

[0095] In some embodiments, such as Figure 3 , Figure 4 As shown, the first support 210 is connected to the base 100 via the first XZ adjustment mechanism.

[0096] The first XZ adjustment mechanism is used to provide the first support 210 and / or the base 100 with a degree of freedom of movement and / or rotation.

[0097] In some embodiments, the first XZ adjustment mechanism is configured to adjust the relative position of the first support surface with respect to the base 100 in at least one upward direction. By way of example only, the first XZ adjustment mechanism can adjust the relative position of the first support surface with respect to the base 100 in the X direction.

[0098] In some embodiments, the first XZ adjustment mechanism may include various structures.

[0099] For example only, such as Figure 3 , Figure 4 As shown, the first XZ adjustment mechanism may include a first slide rail 211 and a first slide groove, the first slide groove being adapted to the first slide rail 211. The first slide rail 211 may be disposed on one of the base 100 and the first support portion 210, and the first slide groove may be disposed on the other of the base 100 and the first support portion 210. The length direction of the first slide rail 211 may be parallel to the X-direction. Through the cooperation of the first slide rail 211 and the first slide groove, the first support portion 210 can move along the length direction of the first slide rail 211. The cross-section of the first slide rail 211 may have various shapes, such as at least one of T-shape, I-shape, and dovetail shape. The shape of the cross-section of the first slide groove may be adapted to the first slide rail 211. Multiple first slide rails 211 may be provided, and multiple first slide rails 211 may be arranged parallel to each other, which is beneficial to improving the guiding accuracy and stability of the first support portion 210.

[0100] As an example only, the first XZ adjustment mechanism can also be a lead screw with a lead screw nut that can slide along the axial direction of the lead screw. The first support part 210 can be fixedly connected to the lead screw nut. When the lead screw nut slides, it can drive the first support part 210 to move synchronously.

[0101] In some embodiments, the first XZ adjustment mechanism may also include other structures, such as at least one of gear drive chains, belt drive chains, chain drive chains, etc.

[0102] The drive module includes a first drive mechanism that is drively connected to the first XZ adjustment mechanism.

[0103] The first drive mechanism is used to output power so that the first XZ adjustment mechanism can adjust the relative position of the first support 210 and the base 100.

[0104] In some embodiments, the first drive mechanism may include a variety of structures, such as at least one of a motor, a hydraulic cylinder, a pneumatic cylinder, and an electric actuator. In some embodiments, the first drive mechanism employs a hydraulic cylinder, a pneumatic cylinder, or an electric actuator, and the piston rod of the hydraulic cylinder, pneumatic cylinder, or electric actuator can be directly connected to the first support portion 210 for transmission.

[0105] The first drive mechanism can communicate with the control module, allowing for remote and automated control of the first drive mechanism. For example, the control module can control at least one of the following: starting, stopping, or changing the operating power of the first drive mechanism. This enables automated adjustment of the position of the first support part 210.

[0106] In some embodiments, the first XZ adjustment mechanism can be connected to the base 100 in a variety of ways, such as snap-fit, threaded connection, welding, etc.

[0107] In some embodiments, such as Figure 3 As shown, the first XZ adjustment mechanism can be mounted on the first adjustment support 215.

[0108] The first adjustment support 215 serves as a mounting base for mounting the first XZ adjustment mechanism and the first support portion 210. In some embodiments, the first adjustment support 215 may be designed as a plate-like structure. The first XZ adjustment mechanism and the first adjustment support 215, and the first adjustment support 215 and the first support portion 210 may be connected by various methods, such as at least one of snap-fit, threaded connection, welding, etc.

[0109] In some embodiments, a first limiting groove adapted to the first adjusting support 215 may be provided on the base 100, which serves to position and limit the first adjusting support 215. This improves the positioning accuracy and installation efficiency of the first adjusting support 215 when assembling a wheel drive running-in test bench.

[0110] By mounting the first support 210 and the first XZ adjustment mechanism on the first adjustment support 215, the first support 210 and the first XZ adjustment mechanism can be modularized and integrated into a whole, facilitating unified management and transportation of the first support 210. This also improves on-site assembly efficiency.

[0111] In some embodiments, the first support portion 210 may include a first horizontal portion 212 and a first lifting portion 213.

[0112] The first horizontal section 212 serves as the mounting base for mounting the first lifting section 213. The first horizontal section 212 can be connected to the first XZ adjustment mechanism via a transmission connection.

[0113] The first lifting part 213 is slidably connected to the first horizontal part 212. The sliding direction of the first lifting part 213 is perpendicular to the base 100, and the first support surface is provided on the first lifting part.

[0114] In some embodiments, the first lifting portion 213 and the first horizontal portion 212 can be connected by a first sliding structure, thereby allowing the first lifting portion 213 and the first horizontal portion 212 to slide relative to each other. In some embodiments, the structure of the first sliding structure and the first XZ adjustment mechanism can be the same or similar. Similarity means that the shape of the first sliding structure and the first XZ adjustment mechanism can be the same, but their dimensions can be different. For more information about the first sliding structure, please refer to the previous description of the first XZ adjustment mechanism. The first lifting portion 213 can be driven by a first driving mechanism or other driving mechanisms similar to the first driving mechanism.

[0115] In some embodiments, the lower surface of the first lifting part 213 can be designed as a groove, and at least a portion of the first horizontal part 212 can extend into the groove. The first horizontal part 212 has two opposing sides, and each of the two sides is provided with at least one sliding structure, which helps to improve the connection strength and guiding accuracy between the first lifting part 213 and the first horizontal part 212.

[0116] The pivot support may further include a second support 220, and the support surface includes a second support surface disposed on the second support 220, which is used to support the second bearing housing.

[0117] In some embodiments, the axle box 310 is provided with a second bearing housing, the second end of the rotating shaft 310 extends outward through the second bearing housing, and the second bearing housing is provided with a bearing connected to the rotating shaft 310.

[0118] The second support part 220 can be used to support the second bearing housing, thereby achieving support for the second end.

[0119] The second support 220 is connected to the base 100 via a second XZ adjustment mechanism. The second XZ adjustment mechanism is configured to adjust the relative position of the second support surface with respect to the base 100 in at least one direction; the drive module includes a second drive mechanism that is pulverizedly connected to the second XZ adjustment mechanism.

[0120] In some embodiments, the second support portion 220 may have the same structure as the first support portion 210 and be distributed in a mirror-symmetric manner. The second XZ adjustment mechanism may have the same structure as the first XZ adjustment mechanism and be distributed in a mirror-symmetric manner. The second drive mechanism may have the same structure as the first drive mechanism and be distributed in a mirror-symmetric manner. For more information about the second support portion 220, the second XZ adjustment mechanism, and the second drive mechanism, please refer to the preceding descriptions of the first support portion 210, the first XZ adjustment mechanism, and the first drive mechanism.

[0121] In some embodiments, the first support portion 210 and the second support portion 220 can be aligned in the X direction to ensure the parallelism of the rotating shaft 320 with the X direction.

[0122] In some embodiments, the second support portion 220 is connected to a second adjusting support, and the base 100 is provided with a second limiting groove corresponding to the second adjusting support. Using the second limiting groove to position the second adjusting support and using the first limiting groove to position the first adjusting support 215 helps to ensure the alignment accuracy of the first support portion 210 and the second support portion 220 in the X direction.

[0123] In some embodiments, at least a portion of the structure on the first support 210 can restrict the degree of freedom of movement of the wheel drive 300 along the axial direction of the shaft 320, and at least a portion of the structure on the second support 220 can restrict the degree of freedom of movement of the wheel drive 300 along the shaft 320. This restricts the degree of freedom of movement of the wheel drive 300 along the axial direction of the shaft 320, preventing axial displacement of the wheel drive 300 during break-in testing, thereby ensuring safety and accuracy during testing.

[0124] In some embodiments, the first support portion 210 may have a first vertical support surface perpendicular to the first support surface, and the first vertical support surface may abut against at least a portion of the surface of the first bearing housing 311. The second support portion 220 may have a second vertical support surface perpendicular to the second support surface, and the second vertical support surface may abut against at least a portion of the surface of the second bearing housing, thereby restricting the axial movement freedom of the wheel drive 300.

[0125] In some embodiments, the wheel drive 300 can be elastically connected to the first vertical support surface and the second vertical support surface, respectively, to reduce the vibration transmitted to the first support portion 210 and the second support portion 220 when the wheel drive 300 starts. Elastic structures, such as at least one of elastic pads, springs, and spring sheets, can be respectively provided on the first and second vertical support surfaces. The elastic pads can be made of elastic materials, such as at least one of rubber and silicone.

[0126] The first support portion 210 and the second support portion 220 only need to be adjusted in their relative positions to the base 100 in the X direction. Since the first bearing housing 311 and the second bearing housing of the wheel drive 300 have a certain degree of coaxiality, the adjustment of the first support portion 210 and the second support portion 220 in the Y direction can be eliminated. This avoids deviations between the first support surface and the second support surface in the Y direction due to factors such as human error, assembly error, and processing error, thereby reducing the difficulty of adjustment and improving the accuracy and efficiency of adjustment.

[0127] In some embodiments, such as Figure 3As shown, a first extension frame is provided on the first bearing housing 311, arranged radially along the rotating shaft 320. A rotatable first auxiliary wheel 312 is connected to the first extension frame. The rotation center of the first auxiliary wheel 312 is parallel to the axis of the rotating shaft 320. The first auxiliary wheel 312 can be rolledly connected to the track to provide auxiliary support for the wheel drive 300. The second bearing housing includes a second extension frame arranged radially, and a second auxiliary wheel is provided at the end of the second extension frame away from the second bearing housing. Since the first extension frame, the first auxiliary wheel 312, the second extension frame, and the second auxiliary wheel have a certain weight, when the wheel drive 300 is installed on the wheel drive running-in test bench, the wheel drive 300 will have an additional rotational tendency due to the influence of gravity, thereby affecting the installation accuracy of the wheel drive 300.

[0128] Figure 5 This is a schematic diagram of the structure of an auxiliary support according to some embodiments of the present invention.

[0129] like Figure 5 As shown, the support assembly 200 may further include an auxiliary support. The auxiliary support 250 includes a first auxiliary support that matches the first auxiliary wheel 312 and a second auxiliary support that matches the second auxiliary wheel.

[0130] The auxiliary support 250 is used to provide support for the first auxiliary wheel 312 or the second auxiliary wheel during hoisting and placement, reducing the labor intensity of manual assistance in wheel drive positioning, and preventing safety hazards caused by offset during wheel drive positioning.

[0131] In some embodiments, the auxiliary support 250 includes a vertical support rod 251 and a horizontal support rod 252 fixedly disposed on the top of the vertical support rod 251. A reinforcing fixing part is provided between the vertical support rod 252 and the horizontal support rod 251, and a horizontal limiting part 254 and a longitudinal support part 253 are provided on the top of the horizontal support rod.

[0132] At least a portion of the first extension frame / second extension frame passes through the corresponding lateral limiting part 254, the lateral limiting part 254 including a lateral groove and a first symmetrical inclined surface disposed at the top of the lateral groove and inclined outward, the width of the lateral groove being equal to the width of the extension frame.

[0133] The first auxiliary wheel 312 and the second auxiliary wheel are engaged with the corresponding longitudinal limiting part 253. The top of the longitudinal limiting part 253 is provided with a second symmetrical inclined surface, which is compatible with auxiliary wheels of different sizes.

[0134] The vertical support rod 251 serves as the mounting base for installing the horizontal support rod 252, and the horizontal support rod 252 serves as the mounting base for installing the longitudinal limiting part 253. The bottom of the vertical support rod 251 and the base 100, the horizontal support rod 252 and the vertical support rod 251, and the longitudinal limiting part 253 and the horizontal support rod 252 can be connected in various ways, such as at least one of snap-fit, threaded connection, or welding. A reinforcing rod can be provided between the horizontal support rod 252 and the vertical support rod 251 to improve the stability and load-bearing capacity of the horizontal support rod 252.

[0135] The longitudinal limiting portion 253 is used to support the first auxiliary wheel 312 or the second auxiliary wheel. In some embodiments, the longitudinal limiting portion 253 has two V-shaped inclined surfaces, which can be symmetrically distributed. The length direction of the inclined surfaces can be parallel to the axial direction of the first auxiliary wheel 312. By using two inclined surfaces to support the first auxiliary wheel 312 simultaneously, it is possible to accommodate first auxiliary wheels 312 of different sizes, thereby expanding the applicability of the auxiliary support 250. A reserved groove is provided below the inclined surfaces to accommodate a portion of the first auxiliary wheel 312.

[0136] The second symmetrical inclined plane can also restrict the radial movement of the first auxiliary wheel 312 along the shaft 320, thereby helping to improve the overall positional accuracy of the wheel drive 300.

[0137] In some embodiments, the longitudinal limiting part 253 can be designed as a frame structure, and the longitudinal limiting part 253 can be made of sheet metal, such as at least one of spring steel, stainless steel plate, carbon steel plate, etc., so that the longitudinal limiting part 253 has a certain elasticity. When the first auxiliary wheel 312 is connected to the longitudinal limiting part 253, under the gravity of the first auxiliary wheel 312, a type of bearing seat can adaptively perform coarse guidance positioning. The adaptive elastic deformation of the longitudinal limiting part 253 can also reduce the vibration transmitted from the first auxiliary wheel 312 to the longitudinal limiting part 253 during the running-in test of the wheel drive 300.

[0138] In some embodiments, a lateral limiting portion 254 may also be provided on the lateral support rod 252. The lateral limiting portion 254 is used to support the first extension frame / second extension frame, and the length direction of the lateral limiting portion 254 is parallel to the length direction of the first extension frame / second extension frame. The lateral limiting portion 254 may be the same as or similar to the longitudinal limiting portion 253. Similar means that the lateral limiting portion 254 and the longitudinal limiting portion 253 may have the same structure but different dimensions.

[0139] The transverse groove can be used to limit the displacement of the first extension frame / second extension frame along the axis of the rotating shaft 320, thereby limiting the overall displacement of the wheel drive 300 along the axis of the rotating shaft 320, which helps to improve the positional accuracy of the wheel drive 300.

[0140] In some embodiments, the second auxiliary support may have the same structure as the first auxiliary support 250. For more information about the second auxiliary support, please refer to the preceding description of the first auxiliary support 250.

[0141] The auxiliary support provided in some embodiments of the present invention, by supporting the first auxiliary wheel 312 and the second auxiliary wheel, can improve the hoisting stability of the first auxiliary wheel 312 and the second auxiliary wheel, and provide a coarse guide positioning bearing seat. It prevents the first auxiliary wheel 312 and the second auxiliary wheel from being suspended in the air, thereby reducing the shaking generated during running-in. It also prevents the first auxiliary wheel 312 and the second auxiliary wheel from sagging, which would affect the overall positioning accuracy and positional accuracy of the wheel drive 300.

[0142] Figure 6 This is a schematic diagram of the structure of the box support portion according to some embodiments of the present invention.

[0143] In some embodiments, such as Figure 1 , Figure 6 As shown, the box support includes a third support 230 and a box support platform 233 disposed on the top of the third support 230. A matrix mounting plate is disposed on the top of the third support 230, and the box support platform 233 is fixedly connected to the third support 230 through the matrix mounting plate.

[0144] The housing support platform 233 includes a vertically arranged support ridge and a third support surface 235 disposed on the top of the support ridge. A vibration damping layer is disposed between the support ridge and the third support surface 235. The vibration damping layer can include various types, such as springs, spring sheets, elastic pads, etc. The vibration damping layer can buffer and reduce vibration, reducing the impact of the wheel drive 300 on the third support surface 235, and helping to reduce wear on the third support surface 235.

[0145] A guide seat 236 is detachably configured on the top of the third support surface 230. The guide seat 236 is provided with a guide surface facing the wheel drive. The guide surface is used to guide the wheel drive to move and be fixed on the third support surface.

[0146] The third support 230 is used to support the axle box 310. In some embodiments, the third support 230 may have the same or similar structure as the first support 210. Similarity means that the third support 230 and the first support 210 may have the same structure but different dimensions. For more information about the third support 230, please refer to the preceding text. Figure 3 , Figure 4 Description of the first support section 210.

[0147] The housing support platform 233 can adopt various structures, such as at least one of block structure, plate structure, and frame structure. The housing support platform 233 can be detachably connected to the upper surface of the housing support in various ways, such as at least one of snap-fit ​​and threaded connection. Different housing support platforms 233 can have third support surfaces 235 of different shapes, allowing for the replacement of different third support surfaces 235 depending on the type of the wheel drive 300. In some embodiments, the matrix mounting plate has multiple mounting holes, which can include at least one of through holes and threads. These mounting holes can be evenly distributed in an array for connection with different housing support platforms 233, improving the positioning accuracy and installation efficiency of the housing support platform 233.

[0148] The housing support and the base 100 can be connected by the first omnidirectional adjustment mechanism 234.

[0149] The first omnidirectional adjustment mechanism 234 is configured to adjust the third support surface 235 in at least one upward relative position with respect to the base 100. For example, Figure 6 At least one of the X and Y directions. The X direction is parallel to the first reference line, and the Y direction is parallel to the second reference line.

[0150] In some embodiments, the first omnidirectional adjustment mechanism 234 may include a third X-track 2341, a third X-base 2342, a third Y-track 2343, and a third Y-base 2344.

[0151] The third X-track 2341 is set along the X direction.

[0152] The third X track 2341 can be provided on one of the base 100 and the third X base 2342. The other of the base 100 and the third X base 2342 has a third X groove that is adapted to the third X track 2341. By using the cooperation between the third X groove and the third X track 2341, the third X base 2342 can be moved along the length direction of the third X track 2341.

[0153] The third Y-track 2343 is set along the Y direction.

[0154] The third Y-track 2343 can be disposed on one of the third X-base 2342 and the third Y-base 2344. The other of the third X-base 2342 and the third Y-base 2344 has a third Y-groove adapted to the third Y-track 2343. By utilizing the cooperation between the third Y-groove and the third Y-track 2343, the third Y-base 2344 can move along the length direction of the third Y-track 2343.

[0155] This allows the entire housing support to move relative to the base 100 in the X and / or Y directions. This, in turn, allows adjustment of the position of the third support surface 235 based on the wheel drive 300 model.

[0156] The drive module includes a third drive mechanism that is drively connected to the first omnidirectional adjustment mechanism.

[0157] The third drive mechanism may include a third X drive mechanism and a third Y drive mechanism.

[0158] The third X drive mechanism is used to output power to drive the third X base 2342 to move along the third X track 2341.

[0159] The third Y-drive mechanism is used to output power to drive the third Y base 2344 to move along the third Y track 2343.

[0160] The third X-drive mechanism and the third Y-drive mechanism can be the same as or similar to the first drive mechanism. Similarity means that the third X-drive mechanism and the third Y-drive mechanism can adopt the same structure, but their dimensions and power distributions may differ. For more information about the third X-drive mechanism and the third Y-drive mechanism, please refer to the previous description of the first drive mechanism.

[0161] In some embodiments, the housing support may further include a guide seat 236.

[0162] The guide seat 236 is used to guide the movement of the wheel drive 300 during installation. In some embodiments, the guide seat 236 has a guide surface. The wheel drive 300 can be transported by hoisting. During the installation of the wheel drive 300 on the wheel drive running-in test bench, at least a portion of the surface of the wheel drive 300 can contact the guide surface and move along the guide surface onto the third support surface 235. In some embodiments, the guide surface can include various shapes; for example, the guide surface can be an inclined surface that is tilted relative to the third support surface 235. Another example is that the guide surface can be a concave arcuate surface.

[0163] The guide seat 236 can limit the suspension of the wheel drive 300 during hoisting. During the descent of the wheel drive 300, the guide surface guides its movement, facilitating rapid positioning of the corresponding part of the wheel drive 300 onto the third support surface 235, thereby improving positioning efficiency. After the wheel drive 300 is installed on the third support surface 235, the guide seat 236 can also limit its movement.

[0164] In some embodiments, the guide seat 236 can be detachably connected to the housing support or the housing support platform 233 in a variety of ways, such as at least one of snap-fit, threaded connection, etc. This facilitates the installation, removal, or replacement of the guide seat 236 as needed.

[0165] In some embodiments, the third support 230 includes a third horizontal portion 231 and a third lifting portion 232, the third lifting portion 232 being slidably connected to the third horizontal portion 231, and the sliding direction of the third lifting portion 232 being perpendicular to the base 100. A third support surface 235 may be disposed on the third lifting portion 232. In some embodiments, a matrix mounting plate may be disposed on the third lifting portion 232. The matrix mounting plate may be connected to the third lifting portion 232 in a variety of ways, such as at least one of snap-fit, welding, or integral molding.

[0166] The third horizontal part 231 and the third lifting part 232 can be connected by a third sliding structure, so that the third sliding structure can drive the third lifting part 232 to slide relative to the third horizontal part 231, thereby adjusting the relative position of the third support surface 235 with the base 100 in the Z direction.

[0167] In some embodiments, the third horizontal portion 231 may be the same as or similar to the first horizontal portion 212, the third lifting portion 232 may be the same as or similar to the first lifting portion 213, and the third sliding structure may be the same as or similar to the first sliding structure. For more information on the third horizontal portion 231, the third lifting portion 232, and the third sliding structure, please refer to [link to relevant documentation]. Figure 3 , Figure 4 Description of the first horizontal part 212, the first lifting part 213 and the first sliding structure.

[0168] The housing support provided in some embodiments of the present invention can provide support and limit at least part of the structure of the axle box 310, and can limit part of the rotational freedom of the entire wheel drive 300 around the rotating shaft 310, which is beneficial to improving the positioning accuracy of the wheel drive 300.

[0169] Figure 7 This is a schematic diagram of the structure of the motor housing support portion according to some embodiments of the present invention.

[0170] In some embodiments, such as Figure 1 , Figure 7 As shown, the motor housing support includes a fourth support 240 and a motor housing support platform 243 disposed on the top of the fourth support, and a fourth support surface is disposed on the motor housing support platform 243.

[0171] A stepped surface is provided on the fourth support surface, and the stepped surface is matched according to the reliable meshing position of the gears in different motor boxes.

[0172] The fourth support 240 can be used to provide support for the motor housing 330.

[0173] The fourth support 240 and the base 100 can be connected by the second omnidirectional adjustment mechanism 244.

[0174] The second omnidirectional adjustment mechanism 244 is configured to adjust the relative position of the fourth support surface with respect to the base 100 in at least one direction. For example, in Figure 7 At least one of the X and Y directions.

[0175] The second omnidirectional adjustment mechanism 244 may include a fourth X track 2441, a fourth X base 2442, a fourth Y track 2443, and a fourth Y base 2444. The fourth X track 2441 may be disposed on one of the fourth X base 2442 and the base 100, and the other of the fourth X base 2442 and the base 100 has a fourth X groove that is slidably connected to the fourth X track 2441. The fourth Y track 2443 may be disposed on one of the fourth Y base 2444 and the fourth support 240, and the other of the fourth Y base 2444 and the fourth support 240 has a fourth Y groove that is slidably connected to the fourth Y track 2443.

[0176] The drive module includes a fourth drive mechanism that is drively connected to the second omnidirectional adjustment mechanism 244.

[0177] The fourth drive mechanism can be used to drive the fourth X base 2442 and the fourth X track 2441 to move relative to each other, and to drive the fourth Y track 2443 and the fourth Y base 2444 to move relative to each other.

[0178] The fourth support 240 includes a fourth horizontal part 241 and a fourth lifting part 242. The fourth lifting part 242 is slidably connected to the fourth horizontal part 241, and the sliding direction of the fourth lifting part 242 is perpendicular to the base.

[0179] In some embodiments, the fourth support 240 and the third support 230 may have the same or similar structures, the second omnidirectional adjustment mechanism 244 may have the same or similar structures as the first omnidirectional adjustment mechanism 234, and the fourth drive mechanism may have the same or similar structures as the third drive mechanism. For more information on the fourth support 240, the second omnidirectional adjustment mechanism 244, and the fourth drive mechanism, please refer to [link to relevant documentation]. Figure 6 Description of the third support 230, the first omnidirectional adjustment mechanism 234 and the third drive mechanism.

[0180] like Figure 1 As shown, the fourth support 240 may include a motor housing support platform 243. The motor housing support platform 243 is used to support the corresponding position of the motor housing 330, and the fourth support surface may be provided on the motor housing support platform 243.

[0181] In some embodiments, the structure of the motor housing support platform 243 and the housing support platform 233 may be the same or similar. For more information about the motor housing support platform 243, please refer to [link to relevant documentation]. Figure 6 Description of the box support platform 233.

[0182] Figure 8 This is a flowchart illustrating the debugging method of a wheel drive running-in test bench according to some embodiments of the present invention.

[0183] like Figure 8 As shown, a debugging method for a wheel drive running-in test bench is described above. The method is applied to the wheel drive running-in test bench, which includes a first support surface corresponding to one end of the wheel drive's shaft, a second support surface corresponding to the other end of the wheel drive's shaft, a third support surface corresponding to the wheel drive's axle box, and a fourth support surface corresponding to the wheel drive's motor housing. The method includes process 800. Process 800 can be run by a control module; more information about the control module can be found in the relevant description above. In some embodiments, process 800 may include:

[0184] Step 810: Obtain wheel drive information, and determine the first adjustment parameter corresponding to the first support surface, the second adjustment parameter corresponding to the second support surface, the third adjustment parameter corresponding to the third support surface, and the fourth adjustment parameter corresponding to the fourth support surface based on the wheel drive information.

[0185] Wheel drive information refers to information related to the wheel drive 300. In some embodiments, wheel drive information may include information such as the model, size, structure, and component composition of the wheel drive 300. In some embodiments, the control module can determine the wheel drive information by acquiring user input.

[0186] The adjustment parameters are used to describe the relevant parameters for adjusting the support component 200.

[0187] In some embodiments, the adjustment parameters may include at least the initial position and adjusted position of at least one support surface, and the upward movement distance of the support surface in at least one of the X, Y, and Z directions. In some embodiments, the control module may determine the adjustment parameters in multiple ways, such as obtaining manual input or obtaining them from historical data. In some embodiments, the adjustment parameters may be set to correspond to the model of the wheel drive 300, and the adjustment parameters and their correspondence with the wheel drive 300 may be preset values, which can be set according to actual needs.

[0188] In some embodiments, the adjustment parameter can be represented by the coordinates of a reference point. For example, (x c y c , z c (x) can represent the initial coordinates of the reference point.z y z , z z (x) can represent the adjusted coordinates of the reference point. Where x... c x z This indicates the reference point relative to the X coordinate, y coordinate... c y z The z-coordinate represents the reference point relative to the Y-axis. c z z This represents the coordinates of the reference point relative to the Z-axis. In some embodiments, the control module can calculate the difference between the adjusted coordinates and the initial coordinates in the corresponding direction, and determine this difference as the movement distance in the corresponding direction.

[0189] In some embodiments, the adjustment parameters may include a first adjustment parameter corresponding to a first support surface, a second adjustment parameter corresponding to a second support surface, a third adjustment parameter corresponding to a third support surface, and a fourth adjustment parameter corresponding to a fourth support surface. The reference points may include a first reference point on the first support surface, a second reference point on the second support surface, a third reference point on the third support surface, and a fourth reference point on the fourth support surface. The first reference point has coordinates (x, y, y) for representing a first initial position. c1 y c1 , z c1 ) and coordinates (x) used to represent the first adjusted position. z1 y z1 , z z1 The second, third, and fourth reference points are similar to the first reference point. For more information on reference points, please refer to the preceding text. Figure 1 Related descriptions.

[0190] In some embodiments, the initial coordinates of the reference point can support the shape of the surface, and the specific correspondence is a preset value that can be set according to actual needs.

[0191] In some embodiments, after testing a certain type of wheel drive 300 on the wheel drive running-in test bench, it is necessary to replace it with another type of wheel drive 300. The control module can confirm the adjusted position of the previous wheel drive 300 as the current position, and determine the adjusted position of the next wheel drive 300. Based on the current position and the theoretical support point of the next wheel drive 300, the control module can determine the adjustment parameters corresponding to the next wheel drive 300. This simplifies the debugging process of the wheel drive running-in test bench when replacing the wheel drive 300. Furthermore, it enables automated adjustment, allowing for fully automated debugging when batch testing multiple types of wheel drive 300s, thereby improving the efficiency of debugging the wheel drive running-in test bench and testing the wheel drive 300s.

[0192] Step 820: Adjust the wheel drive running-in test bench based on the first adjustment parameter, the second adjustment parameter, the third adjustment parameter and the fourth adjustment parameter to obtain the adjusted test bench.

[0193] In this embodiment of the invention, the wheel drive 300 includes at least a shaft, an axle box, and a motor housing that is driven by the shaft. To facilitate quick and accurate placement of the wheel drive 300 on the wheel drive running-in test bench, the shaft is first positioned and fixed, and then the axle box and motor housing are positioned and fixed according to the positioning information of the shaft. It should be noted that the axle box can also be positioned and fixed first, and then the shaft with a clear relative positional relationship with it can be positioned and fixed in sequence, and finally the motor housing with a drive connection to the shaft can be positioned and fixed. Technicians can adopt the corresponding positioning method according to actual needs, which will not be elaborated further here.

[0194] In some embodiments, the relative position of the support surface and the base 100 can include various types; for example, the support surface and the base 100 may be positioned at different locations. Figure 1 The relative position in the X, Y, and Z directions.

[0195] The support component 200 can be adjusted manually, or at least a portion of the support component 200 can be driven by the drive module controlled by the control module, thereby adjusting the relative position of the corresponding support surface and the base 100 to improve adjustment efficiency and accuracy.

[0196] For example, when the drive module includes a motor, the control module can control the rotation angle of the motor's output shaft. The transmission chain converts the rotation angle of the motor's output shaft into a distance moved in a straight line, thereby using the transmission chain to drive at least a portion of the support assembly 200 to move, so as to adjust the relative position of the corresponding support surface and the base 100.

[0197] For example, when the drive module includes a hydraulic cylinder or a pneumatic cylinder, the control module can control the amount of medium pumped by the hydraulic pump or the pneumatic pump to control the distance the piston rod moves. In this way, the piston rod of the hydraulic cylinder or the pneumatic cylinder drives at least a part of the support assembly 200 to move, thereby adjusting the relative position of the corresponding support surface and the base 100.

[0198] In some embodiments, a first adjustment parameter corresponding to the first support surface and a second adjustment parameter corresponding to the second support surface are first determined. Specifically, since the axle box 310 must be in a test-ready state with the wheel drive 300 off the ground when it is placed on the test bench, after the previous wheel drive 300 test is completed, the size information of the axle box of the next wheel drive 300 is first obtained. For example, the size information includes, but is not limited to, the length, width, and height of the axle box 310. Based on the size information, the planar position information of the shaft on the plane projection can be determined. Then, based on the relative position information between the shaft 320 and the axle box 310, specifically, there is a uniform gap between the shaft 320 and the axle box 310 and the overall balance needs to be maintained. Based on the relative position relationship, the height position information of the shaft 320 when the axle box 310 is suspended and reliably placed on the test bench can be determined. At this time, the three-dimensional position information of the shaft can be determined based on the above planar position information and height position information. For example, the above information can be converted into the coordinate information of the shaft 320 in three-dimensional space according to the coordinate system of the test bench.

[0199] Since the support assembly 200 is in fixed contact with the bottom of the shaft 320 when it is fixedly placed on the test bench, it is also necessary to determine the first adjustment parameter corresponding to the first support surface and the second adjustment parameter corresponding to the second support surface based on the shaft's size information (e.g., diameter, length) and three-dimensional position information. This means determining the height, horizontal position, and parallelism that the first support surface should possess, and the height, horizontal position, and parallelism that the second support surface should possess, so that the shaft 320 can be placed on the test bench for stable and reliable testing. At this time, the first support portion 210 and the second support portion 220 can be adjusted to their corresponding positions according to the aforementioned first and second adjustment parameters.

[0200] In some embodiments, the control module can control the power output of the first drive mechanism (e.g., a motor or worm gear structure) based on the first adjustment parameter to drive the first support 210 to move, thereby adjusting the first relative position between the first support surface and the base 100.

[0201] As an example only, the initial coordinates of the first reference point corresponding to the first support surface are (-1000, 0, 500), and the adjusted coordinates are (-800, 0, 550). Here, -1000 and -800 represent the first reference point's coordinates relative to the X-axis, 0 represents the first reference point's coordinates relative to the Y-axis, and 500 and 550 represent the first reference point's coordinates relative to the Z-axis. The unit can be mm. The control module can control the first drive mechanism to apply a thrust along the X-axis to the first support part 210, causing the first support part 210 to move 200mm upwards in the X-axis direction. The control module can also control the first drive mechanism to apply a thrust along the Z-axis to the first lifting part 213, causing the first lifting part 213 to move 50mm upwards in the Z-axis direction, thereby moving the first reference point from the initial coordinates to the adjusted coordinates.

[0202] The adjustment process of the second support part 220 is similar to that of the first support part 210, and will not be described in detail here. After adjusting the first support surface and the second support surface into place, the axle 320 of the wheel drive 300 is first fixedly placed on the corresponding first support surface and the second support surface, and then the axle box 310 is placed.

[0203] Due to the large overall size of the wheel drive, fine-tuning during hoisting and transportation is extremely difficult due to inertia. Therefore, a guide seat is further configured on the third support surface to assist in accurately and conveniently placing the axle box 310 in the correct position. In this embodiment of the invention, since the shaft 310 is already fixedly installed, the fixed position information of the axle box 310 can be determined based on the relative position information and the three-dimensional position information of the shaft 320, that is, the accurate position information of the axle box 310 when it is fixedly placed. Then, based on this precise position information, the guiding position information of the guide seat on the third support surface can be determined. For example, the guiding position information includes the height information, horizontal position information, and inclination information of the guide surface on the guide seat. At this time, coordinate transformation is performed on the above guiding position information to generate guiding coordinates. Since the guide seat is fixedly connected to the housing support 230, the three-dimensional coordinate information of the housing support 230 as a whole can be further determined based on the three-dimensional coordinate information of the guide seat, that is, the third adjustment parameter for the third support surface is determined.

[0204] In some embodiments, the control module can control the power output of the third drive mechanism based on the third adjustment parameter to drive the housing support 230 to move, thereby adjusting the third relative position between the third support surface and the base 100. After the axle box 310 and the rotating shaft 320 are positioned and fixed, the motor housing 330 is positioned and fixed.

[0205] Since the motor housing 330 is not simply fixedly connected to the shaft 310 and the rotating shaft 320, the transmission connection between the drive components in the motor housing 330 and the rotating shaft 320 must also be considered. In order to ensure transmission reliability, the configuration position of the motor housing 330 needs to be precisely adjusted.

[0206] Specifically, in order to achieve precise adaptation to different models of wheel drive 300 and motor housings 330 of different sizes / types, a stepped surface is set on the fourth support surface. In the process of determining the fourth adjustment parameters of the fourth support surface, the chassis size data of the motor housing 330 (such as length, width, height, horizontal position, etc.) and the reliable meshing position of the motor housing and the axle box are first obtained. Then, based on the fixed position information of the axle box, the chassis size data, and the reliable meshing position, the support position of the motor housing 330 is determined. The support position includes the horizontal support position and the vertical support position. Then, the specific positioning and fixing position of the motor housing 330 on the stepped surface is further determined, including which step it needs to be fixed on and the specific support point on the fixed step. This further determines the three-dimensional spatial position to which the fourth support surface needs to be adjusted, that is, the fourth adjustment parameters corresponding to the fourth support surface are determined.

[0207] In some embodiments, the control module can control the power output of the fourth drive mechanism based on the fourth adjustment parameter to drive the motor housing support 240 to move, thereby adjusting the fourth relative position between the fourth support surface and the base 100. The adjustment process of the second, third, and fourth support surfaces is similar to the adjustment process of the first support surface, and will not be described again here.

[0208] By accurately calculating and adjusting parameters, the control module can control the support component 200 to achieve automated, precise control and adaptive adjustment, which improves the automation level of the wheel drive running-in test bench, greatly accelerates the positioning and fixing efficiency of the wheel drive 300, and improves test efficiency and test accuracy.

[0209] After adjusting the first, second, third, and fourth support surfaces, the adjusted test bench was obtained. However, during the process of hoisting and placing the wheel drive 300 onto the test bench, disturbances or inaccurate placement are inevitable. Since the test speed of the wheel drive 300 may be relatively high, its assembly precision after placement is extremely high to avoid shaking during high-speed operation and ensure test safety. Therefore, further adjustments to the various support devices of the test bench are needed to precisely adjust the assembly of the wheel drive 300, ensuring that its overall assembly is in a qualified and accurate state.

[0210] Step 830: Detect the relative position of each support surface and the base in the adjusted test bench, and determine the positional error between each support surface and the standard position based on the relative position.

[0211] The standard position refers to the preset position that the support surface needs to reach after adjustment. The standard position is a preset value, which can be preset according to the model of the Wheel Drive 300. In some embodiments, the control module can determine the standard position in a variety of ways, such as obtaining manual input, obtaining it from historical data, etc.

[0212] In some embodiments, the standard position can be used as the standard coordinate representation of the reference point corresponding to the support surface, for example, (x b y b , z b ), where x b This represents the standard coordinates of the reference point relative to the X-axis, y b This represents the standard coordinates of the reference point relative to the Y-axis, z. b The reference point is represented by its standard coordinates relative to the Z-axis. In some embodiments, the standard position may include a first standard coordinate, a second standard coordinate, a third standard coordinate, and a fourth standard coordinate, respectively, corresponding to the first support surface, the second support surface, the third support surface, and the fourth support surface.

[0213] Position error describes the error between the adjusted coordinates of a reference point and the standard coordinates. In some embodiments, position error may include X-axis error, Y-axis error, and Z-axis error. In some embodiments, the X, Y, and Z errors can be specific numerical values, and the control module can calculate the difference between the adjusted coordinates and the standard coordinates, determining it as the position error.

[0214] Position error can be compared with an error range. An error range refers to a preset interval or preset value used for comparison with the position error. In some embodiments, the error range can be a specific numerical value or range, such as 0, -0.1mm to 0.1mm, -0.2mm to 0.2mm, or other numerical ranges, and the specific numerical range can be set according to actual needs. In some embodiments, the control module can determine the error range in multiple ways, such as obtaining manual input, obtaining data from historical data, etc., at least one of these methods.

[0215] The positional error includes a first error, a second error, a third error, and a fourth error corresponding to the first support surface, the second support surface, the third support surface, and the fourth support surface, respectively.

[0216] Step 840: Determine correction parameters based on position error.

[0217] The correction parameters include a first correction parameter, a second correction parameter, a third correction parameter, and a fourth correction parameter, respectively, corresponding to the first error, the second error, the third error, and the fourth error.

[0218] The control module can control the first drive mechanism, the second drive mechanism, the third drive mechanism, and the fourth drive mechanism to correct the position of the corresponding support surface based on the first correction parameter, the second correction parameter, the third correction parameter, and the fourth correction parameter, respectively. This ensures that the positional accuracy of the first support surface, the second support surface, the third support surface, and the fourth support surface meets the requirements, thereby improving the positioning accuracy of the corresponding wheel drive 300.

[0219] The correction parameter refers to the parameter used to correct the adjusted coordinates. Based on the correction parameter, the control module can readjust the adjusted coordinates again, controlling the support surface to move so that the coordinates of the reference point are aligned with the standard coordinates. This corrects the relative position of the support surface and the base 100.

[0220] In some embodiments, the control module can determine correction parameters based on the adjusted coordinates and the error range. For example, the control module can determine the error range corresponding to the values ​​or the median of the value range in the X-axis, Y-axis and / or Z-axis, and determine the coordinate values ​​of the adjusted coordinates in the X-axis, Y-axis and / or Z-axis. The control module can calculate the difference between the value or median and the corresponding coordinate value, and confirm the difference as the correction parameter.

[0221] Step 850: Based on the correction parameters, correct the relative position of at least one support surface with respect to the base 100.

[0222] When the correction parameter is greater than 0, the drive module can drive the support surface to move along the positive direction of the corresponding coordinate axis. When the correction parameter is less than 0, the drive module can drive the support surface to move along the negative direction of the corresponding coordinate axis.

[0223] As an example, if the error range of a reference point along the X-axis is -0.1mm to 0.1mm, and the X-error along the X-axis is -0.3mm, it means that the coordinates of the reference point after adjustment have not reached the standard coordinate position along the X-axis. The control module can calculate that the median value of the error range is 0, and the difference between the median value and the X-error is 0.3mm. The control module can then control the corresponding drive mechanism to move the corresponding support surface 0.3mm along the positive direction of the X-axis.

[0224] The debugging method provided in some embodiments of this invention is applied to a wheel drive running-in test bench. Utilizing a control module to achieve automated control, it can adjust the positions of the first, second, third, and fourth support surfaces respectively, thereby ensuring that their positions meet the requirements of the corresponding wheel drive 300. This allows it to adapt to running-in tests of various wheel drive 300 models, expanding the applicability of the wheel drive running-in test bench. By determining the coordinates of a reference point and adjusting and correcting the positions of the corresponding support surfaces based on these coordinates, the calculations of the control module are simplified, saving computational power and improving control accuracy and efficiency.

[0225] In some embodiments, the control system may further include a detection module, which is communicatively connected to the control module. The detection module is configured to detect position errors.

[0226] In some embodiments, the detection module can detect the adjusted coordinates of the support surface. The detection module can include various types, such as at least one of a laser rangefinder or a laser level. The detection module can be connected to the base in various ways, such as at least one of abutment, snap-fit, threaded connection, adhesive connection, or magnetic connection.

[0227] In some embodiments, the detection module includes multiple laser levels. The lasers emitted by two laser levels intersect to form standard coordinate points, which include a first standard coordinate point, a second standard coordinate point, a third standard coordinate point, and a fourth standard coordinate point corresponding to the first support surface, the second support surface, the third support surface, and the fourth support surface, respectively.

[0228] Multiple laser levels are used to detect the positional errors between the first, second, third, and fourth support surfaces and their corresponding first, second, third, and fourth standard coordinates.

[0229] As an example, when adjusting the first support 210 and the second support 220, three laser levels can be used. The third laser level can be positioned between the first and second support parts 210 and 220. The laser emitted by the third laser level is parallel to the X-axis and passes through the first support surface of the first support 210 and the second support surface of the second support 220. The laser emitted by the first laser level is parallel to the Y-axis and intersects perpendicularly with the laser emitted by the third laser level. This intersection point is the first standard coordinate point corresponding to the first support surface, and its coordinates are the first standard coordinates corresponding to the first support surface. After adjusting the position of the first support surface, the first and third laser levels can detect the positional error between the adjusted coordinates of the first support surface and the first standard coordinates. The laser emitted by the second laser level is parallel to the Y-axis and intersects perpendicularly with the laser emitted by the third laser level. This intersection point is the second standard coordinate point corresponding to the second support surface, and its coordinates are the second standard coordinates. Similarly, the positional error between the adjusted coordinates of the second support surface and the second standard coordinates can be detected.

[0230] By using multiple laser levels, it is convenient to use the lasers emitted by two laser levels to determine the standard coordinate point, thereby facilitating the detection of the positional error between the coordinates of the support surface after adjustment and the standard coordinates, which helps to improve the efficiency and accuracy of debugging.

[0231] In some embodiments, the wheel drive 300 has a contact surface that contacts the support surface and a detection surface for detecting height. Along a direction perpendicular to the base 100, the contact surface and the detection surface can be two opposite sides of the wheel drive 300, with the contact surface located below the detection surface.

[0232] In some embodiments, the drive information may also include the standard vertical distance between the detection surface and the base 100.

[0233] In some embodiments, the contact surface may include a first contact surface, a second contact surface, a third contact surface, and a fourth contact surface that are in contact with the first support surface, the second support surface, the third support surface, and the fourth support surface, respectively. The detection surface may include a first detection surface, a second detection surface, a third detection surface, and a fourth detection surface that are in contact with the first contact surface, the second contact surface, the third contact surface, and the fourth contact surface, respectively.

[0234] The detection module can also detect the actual distances between the first, second, third, and fourth detection surfaces and the base 100. The control module can calculate the distance difference between the actual distance and the standard vertical distance, and compare the difference between the distance difference and a distance difference threshold. The distance difference threshold can be a preset value or a range of values. When the difference is greater than the maximum value of the distance difference threshold or less than the minimum value, the control module can determine that there is a deviation in the installation position of the wheel drive 300, and adjust the distance between the corresponding support surface and the base 100 in the Z direction based on the difference. The distance difference threshold is a preset value, and its specific value can be set according to actual needs.

[0235] The basic concepts have been described above. It is clear that the detailed disclosure above is merely illustrative and does not constitute a limitation of the present invention. Although not explicitly stated herein, various modifications, improvements, and corrections may be made to the present invention by those skilled in the art. Such modifications, improvements, and corrections are suggested in this invention and therefore remain within the spirit and scope of the exemplary embodiments of the present invention.

[0236] Meanwhile, specific terms are used to describe embodiments of the invention. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of the invention. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this invention do not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics in one or more embodiments of the invention can be appropriately combined.

Claims

1. A wheel drive running-in test bench for supporting a wheel drive, the wheel drive including an axle box, a shaft, and a motor housing drivenly connected to the shaft; the axle box has a first side and a second side located on opposite sides along the axial direction of the shaft, the axle box having a first end and a second end along the axial direction of the shaft and opposite to each other, the first end having a first bearing seat, and the second end having a second bearing seat; the shaft passing through the first bearing seat and the second bearing seat; the motor housing connected to the second side of the axle box, characterized in that, The wheel drive running-in test bench includes: Base; A support assembly is disposed on the base. The support assembly has a support surface that can be adjusted in the X, Y, and Z directions. The support assembly includes an axle box support and a rotating shaft support. The axle box support includes a housing support and a motor housing support. A first omnidirectional adjustment mechanism is arranged at the bottom of the housing support. The housing support and the housing part of the axle box are matched in the X, Y, and Z directions. A second omnidirectional adjustment mechanism is arranged at the bottom of the motor housing support. The motor housing support and the motor housing are matched in the X, Y, and Z directions. The rotating shaft support includes a first support and a second support. A first XZ adjustment mechanism is arranged at the bottom of the first support, and the first support is matched with one end of the rotating shaft in the X and Z directions. A second XZ adjustment mechanism is arranged at the bottom of the second support, and the second support is matched with the other end of the rotating shaft in the X and Z directions.

2. The wheel drive running-in test bench according to claim 1, characterized in that, The top of the support component is configured with a positioning component that matches the shape of the corresponding structure of the wheel drive. The top of the positioning component is provided with a symmetrical groove. The symmetrical groove matches the shape of the corresponding structure of the wheel drive, and the symmetry line of the symmetrical groove coincides with the symmetry line of the support component.

3. The wheel drive running-in test bench according to claim 1, characterized in that, The wheel drive running-in test bench also includes a control module, which is communicatively connected to the first omnidirectional adjustment mechanism, the second omnidirectional adjustment mechanism, the first XZ adjustment mechanism, and the second XZ adjustment mechanism. The support surface includes a first support surface disposed on the first support part, a second support surface disposed on the second support part, a third support surface disposed on the housing support part, and a fourth support surface disposed on the motor housing support part; The first bearing housing is fixedly placed on the first support surface, and the second bearing housing is fixedly placed on the second support surface; the axle box is fixedly placed on the third support surface, and the motor housing is fixedly placed on the fourth support surface.

4. The wheel drive running-in test bench according to claim 1, characterized in that, The first bearing housing includes a first extension frame arranged radially, and a first auxiliary wheel arranged at the end of the first extension frame away from the first bearing housing; the second bearing housing includes a second extension frame arranged radially, and a second auxiliary wheel arranged at the end of the second extension frame away from the second bearing housing. The support assembly further includes an auxiliary support, which includes a first auxiliary support that matches the first auxiliary wheel and a second auxiliary support that matches the second auxiliary wheel.

5. The wheel drive running-in test bench according to claim 4, characterized in that, The auxiliary support includes a vertical support rod and a horizontal support rod fixedly disposed on the top of the vertical support rod. A reinforcing fixing part is provided between the vertical support rod and the horizontal support rod. A horizontal limiting part and a longitudinal support part are provided on the top of the horizontal support rod. At least a portion of the first extension frame / second extension frame passes through the corresponding lateral limiting portion, the lateral limiting portion including a lateral groove and a first symmetrical inclined surface disposed at the top of the lateral groove and inclined outward, the width of the lateral groove being equal to the width of the extension frame; The first auxiliary wheel / the second auxiliary wheel is engaged with the corresponding longitudinal limiting part, and the top of the longitudinal limiting part is provided with a second symmetrical inclined surface, which is compatible with auxiliary wheels of different sizes.

6. The wheel drive running-in test bench according to claim 1, characterized in that, The box support includes a third support and a box support platform disposed on the top of the third support. A matrix mounting plate is disposed on the top of the third support, and the box support platform is fixedly connected to the third support through the matrix mounting plate. The box support platform includes a vertically arranged support rib and a third support surface disposed on the top of the support rib, and a vibration damping layer is disposed between the support rib and the third support surface; A guide seat is detachably configured on the top of the third support surface. The guide seat is provided with a guide surface facing the wheel drive. The guide surface is used to guide the wheel drive to move and be fixed on the third support surface.

7. The wheel drive running-in test bench according to claim 1, characterized in that, The motor housing support includes a fourth support and a motor housing support platform disposed on the top of the fourth support, and a fourth support surface is provided on the motor housing support platform; The fourth support surface is provided with a stepped surface, which is matched and set according to the reliable meshing position of the gears in different motor boxes.

8. A debugging method for a wheel drive running-in test bench, characterized in that, The method is applied to the wheel drive running-in test bench according to any one of claims 1-7, wherein the wheel drive running-in test bench includes a first support surface corresponding to one end of the wheel drive shaft, a second support surface corresponding to the other end of the wheel drive shaft, a third support surface corresponding to the axle box of the wheel drive, and a fourth support surface corresponding to the motor housing of the wheel drive, and the method includes: Obtain wheel drive information, and based on the wheel drive information, determine a first adjustment parameter corresponding to the first support surface, a second adjustment parameter corresponding to the second support surface, a third adjustment parameter corresponding to the third support surface, and a fourth adjustment parameter corresponding to the fourth support surface; The wheel drive running-in test bench is adjusted based on the first adjustment parameter, the second adjustment parameter, the third adjustment parameter, and the fourth adjustment parameter to obtain the adjusted test bench; The relative positions of each support surface and the base in the adjusted test bench are detected, and the positional error between each support surface and the standard position is determined based on the relative positions. The correction parameters are determined based on the position error; Based on the correction parameters, the relative position of at least one support surface to the base is corrected.

9. The debugging method according to claim 8, characterized in that, The wheel drive information includes the dimensions of the axle box, the dimensions of the shaft, and the relative position of the shaft with respect to the axle box. Determining the first adjustment parameter corresponding to the first support surface and the second adjustment parameter corresponding to the second support surface based on the wheel drive information includes: The planar position information of the rotating shaft is determined based on the size information of the axle box, and the height position information of the rotating shaft is determined based on the relative position information. The three-dimensional position information of the rotating shaft is determined based on the planar position information and the height position information; Based on the size information of the rotating shaft and the three-dimensional position information, a first adjustment parameter corresponding to the first support surface and a second adjustment parameter corresponding to the second support surface are determined; The wheel drive running-in test bench includes a guide seat disposed on the third support surface, and determines a third adjustment parameter corresponding to the third support surface and a fourth adjustment parameter corresponding to the fourth support surface based on the wheel drive information, including: The fixed position information of the axle box is determined based on the relative position information and the three-dimensional position information of the rotating shaft; The guide position information of the guide seat is determined based on the fixed position information; The guide position information is transformed into coordinates to generate guide coordinates; A third adjustment parameter for the third support surface is generated based on the guide coordinates; The support position of the motor housing is determined based on the fixed position information, and a fourth adjustment parameter corresponding to the fourth support surface is generated based on the support position of the motor housing.

10. The debugging method according to claim 6, characterized in that, The fourth support surface includes a stepped surface. The process of determining the support position of the motor housing based on the fixed position information and generating a fourth adjustment parameter corresponding to the fourth support surface based on the support position of the motor housing includes: Obtain the chassis dimensions of the motor housing and the reliable meshing position between the motor housing and the axle box; The support position of the motor housing is determined based on the fixed position information, the chassis size data, and the reliable engagement position. The support position includes a horizontal support position and a vertical support position. The support steps of the stepped surface are determined based on the vertical support positions, and the support points of the support steps are determined based on the horizontal support positions. A fourth adjustment parameter corresponding to the fourth support surface is generated based on the support step and the support point.

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