Wheel wear resistance testing device

Abstract

The utility model relates to a wheel wear resistance testing device which comprises a frame body, a pushing and pressing mechanism, a pressure detection piece, a pressing wheel mechanism, a driving mechanism, a clamping mechanism and a detection mechanism. The pressing wheel mechanism is arranged on the side, facing the detected wheel, of the pushing and pressing mechanism, the pushing and pressing mechanism can abut against or be separated from the pressing wheel mechanism, the pressing wheel mechanism is provided with a rotatable pressing wheel, and the pushing and pressing mechanism can abut against the pressing wheel mechanism to move relative to the frame body so that the pressing wheel can abut against the detected wheel on the detected wheel shaft; the pressure detection piece is used for detecting the pressing force when the pressing wheel abuts against the detected wheel, and the pressure detection piece is in communication connection with the pushing and pressing mechanism, so that the pushing and pressing mechanism abuts against the pressing wheel according to the pressing force; the clamping mechanism is used for clamping a detected wheel shaft, the driving mechanism is connected with the detected wheel shaft and drives the detected wheel shaft to rotate, and the detection mechanism at least partially corresponds to the detected wheel so as to detect the abrasion loss of the detected wheel in real time. Therefore, the pushing and pressing mechanism can output constant pushing and pressing force, the accuracy of a test result is ensured, and potential safety hazards are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of testing equipment, and in particular to a wheel wear resistance testing device. Background Art

[0002] In semiconductor manufacturing plants, AMHS (Automatic Material Handling System) is used to store and transport wafer boxes, among which the aerial transport vehicle is a core type of wafer box conveying equipment in AMHS. A track system is suspended on the ceiling (also known as the ceiling) of the factory, and the aerial transport vehicle travels along the path set in the track system. The path in the aforementioned track system consists of a left track and a right track arranged at intervals in the horizontal direction intersecting the direction of travel. The running wheels on the left and right sides of the aerial transport vehicle are correspondingly supported on the left and right tracks on the path and travel, and the running wheels are friction wheels. In order to ensure the smooth travel of the aerial transport vehicle, the mechanical properties of the wheels need to meet certain requirements, so it is necessary to perform a wear resistance test on the running wheels.

[0003] Usually, the aerial transport vehicle is referred to as the overhead crane, and the running wheel of the aerial transport vehicle is referred to as the overhead crane wheel. The current overhead crane wheel testing equipment may fail to contact the running wheel under test due to the wear of the running wheel outer diameter during the test, which may lead to invalid test. In addition, if there is manual intervention during the test, there will be safety hazards. Summary of the invention

[0004] Based on this, it is necessary to provide a wheel wear resistance testing device to address the problem that the current overhead car wheel testing equipment cannot contact the running wheel during wear resistance testing. The device can output a constant pressing force to always keep the tested wheel under pressure, so that the tested wheel is always in the wear resistance testing process, thereby ensuring the accuracy of the test results. In addition, the entire wear resistance testing process does not require human intervention, reducing safety hazards.

[0005] A wheel wear test device comprises a frame, a pushing mechanism, a pressing wheel mechanism, a driving mechanism, a clamping mechanism, a pressure detection member and a detection mechanism arranged on the frame;

[0006] The pressing wheel mechanism is arranged on the side of the pushing mechanism facing the measured wheel, the pushing mechanism can abut against or be separated from the pressing wheel mechanism, the pressing wheel mechanism has a rotatable clamping wheel, the pushing mechanism can press the pressing wheel mechanism to move relative to the frame, so that the clamping wheel presses against the measured wheel on the measured wheel shaft;

[0007] The pressure detection member is used to detect the pressing force when the pressure wheel presses against the measured wheel, and the pressure detection member is communicatively connected to the pushing mechanism so that the pushing mechanism presses against the pressure wheel according to the magnitude of the pressing force;

[0008] The clamping mechanism is used to clamp the measured wheel axle, the driving mechanism is connected to the measured wheel axle and drives the measured wheel axle to rotate, and the detection mechanism at least partially corresponds to the measured wheel to detect the wear amount of the measured wheel in real time.

[0009] In one embodiment of the present application, the wheel wear resistance testing device further includes a controller, the controller is communicatively connected to the pressure detection member and the pushing mechanism, and the pressure detection member can feed back the detected pressing force to the controller in real time;

[0010] A preset pressure value is pre-stored in the controller, and the pushing mechanism is controlled to move according to a comparison result between the pressing force and the preset pressure value, so that the clamping wheel keeps pressing against the measured wheel.

[0011] In one embodiment of the present application, the pushing mechanism includes a first driving member and an abutting portion, the first driving member is disposed on the frame, the abutting portion is disposed at an output end of the first driving member and is capable of abutting against the pressing wheel mechanism;

[0012] Wherein, the abutting portion is a tip, the tip is fixedly arranged at the output end of the first driving member, and the central axis of the tip coincides with the central axis of the pressing wheel, and the tip of the tip abuts against the pressing wheel mechanism;

[0013] The outer wall of the tip of the abutting portion is spherical or spherical, and the tip of the abutting portion abuts against the pressing wheel mechanism;

[0014] Alternatively, the abutting portion is an abutting column, one end of which is fixedly arranged at the output end of the first driving member, and the other end of which is in contact with the pressing wheel mechanism.

[0015] In one embodiment of the present application, the pressure detection component is provided on the pushing mechanism, or the pressure detection component is provided on the pressing wheel mechanism.

[0016] In one embodiment of the present application, the pressure wheel mechanism also includes a support assembly and a first guide assembly. The first guide assembly is arranged on the frame along the movement direction of the pushing mechanism. The support assembly can be movably arranged on the first guide assembly, and the pressure wheel can be rotatably installed on the support assembly.

[0017] In one embodiment of the present application, the support assembly includes a support seat and a mounting shaft, the mounting shaft is disposed on the support seat, the pressure wheel is rotatably disposed on the mounting shaft and at least partially exposes the support seat;

[0018] The support assembly further includes a support bearing, which is disposed between the pressure wheel and the mounting shaft to rotatably support the pressure wheel on the mounting shaft.

[0019] In one embodiment of the present application, the clamping mechanism includes a clamping drive part, a first clamping part and a second clamping part, the clamping drive part can be movably arranged on the frame, the first clamping part is arranged at the output end of the clamping drive part, the second clamping part is arranged on the frame and is arranged corresponding to the first clamping part, when the clamping drive part drives the first clamping part to approach the second clamping part, the first clamping part and the second clamping part can rotate to clamp the measured wheel axle, and when the clamping drive part drives the first clamping part to move away from the second clamping part, the first clamping part and the second clamping part release the measured wheel axle;

[0020] The clamping drive portion is a clamping drive member or a toggle clamp.

[0021] In one embodiment of the present application, the first clamping portion includes a first clamping seat and a first rotating member, the second clamping portion includes a second clamping seat and a second rotating member, the first rotating member is rotatably disposed on a side of the first clamping seat facing the second clamping seat, the second rotating member is rotatably disposed on a side of the second clamping seat facing the first clamping seat, and the first rotating member cooperates with the second rotating member to clamp or release the measured wheel axle;

[0022] The number of the first rotating member is at least one, the number of the second rotating members is multiple, and the at least one first rotating member and the multiple second rotating members are arranged to form a rotating space for accommodating the measured wheel axle;

[0023] The first rotating member and the second rotating member are rolling bearings or rotating shafts.

[0024] In one embodiment of the present application, the driving mechanism includes a second driving member and a coupling, the second driving member is disposed on the frame, and the output end of the second driving member is connected to the measured wheel axle through the coupling.

[0025] In one embodiment of the present application, the detection mechanism includes a displacement detection member, which is disposed on the frame and corresponds to the measured wheel at least partially along the axial and / or radial direction of the measured wheel, so that the detection light emitted by the displacement detection member is projected onto the measured wheel and reflected back to the displacement detection member by the measured wheel to detect the wear amount of the measured wheel.

[0026] After adopting the above technical solution, this application has at least the following technical effects:

[0027] The wheel wear test device of the present application has a clamping mechanism that can clamp the wheel axle to be measured, and a pushing mechanism that can press against the pressing wheel mechanism, so that the pressing wheel mechanism can move relative to the frame, and then the pressing wheel in the pressing wheel mechanism can press against the wheel to be measured on the wheel axle to be measured. When the driving mechanism drives the wheel axle to be measured to rotate, the wheel axle to be measured can drive the synchronous wheel to be measured to rotate synchronously, and then the wheel to be measured can drive the pressing wheel to rotate synchronously, and when the pressing wheel rotates, the wear resistance performance of the wheel to be measured can be tested. In this process, the pressure detection component can detect the pressing force when the pressing wheel presses against the wheel to be measured, so that the pushing mechanism presses against the pressing wheel to move according to the size of the pressing force.

[0028] The wheel wear test device uses a pushing mechanism to drive the pressure wheel to press against the wheel to be tested. During the wear test, if the pressing force detected by the pressure detection component decreases, the pushing mechanism can move toward the wheel to be tested to drive the pressure wheel to always keep pressing against the wheel to be tested, so that the pushing mechanism outputs a constant pressing force to ensure that the wheel to be tested is always in the wear test process, thereby ensuring that the wear test result is not distorted and more reliable. At the same time, the detection mechanism can detect the wear of the wheel to be tested in real time to determine the wear condition of the wheel to be tested based on the wear of the wheel to be tested. In this way, the pushing structure and the pressure detection component are used to cooperate to enable the pushing mechanism to output a constant pressing force, so that the pressure wheel can always keep pressing against the wheel to be tested, so that the wheel to be tested can always be in the wear test process, thereby ensuring the accuracy of the test results. In addition, the wear test process does not require manual intervention to adjust the pressing force, thereby reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG. 1 is a schematic diagram of a wheel wear resistance testing device according to an embodiment of the present application viewed from one angle.

[0030] FIG. 2 is a schematic diagram of the wheel wear resistance testing device shown in FIG. 1 viewed from another angle.

[0031] FIG. 3 is a front view of the wheel wear resistance testing device shown in FIG. 1 .

[0032] FIG. 4 is a side view of the wheel wear resistance testing device shown in FIG. 1 .

[0033] FIG. 5 is a cross-sectional view of the wheel wear resistance testing device shown in FIG. 3 at AA.

[0034] FIG. 6 is a schematic diagram of the wheel wear resistance testing device shown in FIG. 1 when the clamping mechanism is not clamped.

[0035] FIG. 7 is a cross-sectional view of the wheel wear test device shown in FIG. 3 at point BB, wherein the clamping mechanism clamps the wheel axle to be tested.

[0036] FIG. 8 is a top view of the wheel wear resistance testing device shown in FIG. 3 .

[0037] FIG. 9 is a schematic diagram of curves of a pressure detection component and a displacement detection component in the wheel wear resistance measurement device shown in FIG. 1 .

[0038] Wherein: 10, wheel wear test device; 100, frame; 110, base; 120, support frame; 200, pressing mechanism; 210, first driving member; 230, abutment portion; 300, pressing wheel mechanism; 310, supporting assembly; 311, supporting seat; 312, mounting shaft; 313, supporting bearing; 320, first guide assembly; 321, first guide slide rail; 322, first guide slider; 330, pressing wheel; 400, clamping mechanism; 410, elbow clamp; 420, first clamping portion; 421, first clamping seat; 4211, first avoidance groove; 422, first rotating member; 4221, first accommodating groove; 430, second clamping portion; 431, second clamping seat; 4311, second avoidance groove; 432, second rotating member; 4321, second accommodating groove; 440, second guide assembly; 441, second guide rail; 442, second guide slider; 500, driving mechanism; 510, second driving member; 520, coupling; 530, first bracket; 600, detection mechanism; 610, displacement detection member; 620, second bracket; 900, pressure detection member; 70, measured wheel axle; 80, measured wheel. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0040] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0041] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0043] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "on" or "below" a second feature, etc., or the like, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0045] Referring to FIGS. 1 to 3 , the present application provides a wheel wear test device 10. The wheel wear test device 10 is used to test the wear resistance of a wheel 80 to be tested. The wheel 80 to be tested here refers to a running wheel, a wheel, a crown wheel or other types of wheels. The wheel wear test device 10 can measure the wear resistance of the wheel 80 to be tested, so as to obtain relevant wear resistance parameters of the wheel 80 to meet actual use requirements.

[0046] In this embodiment, the wheel 80 to be measured refers to a wheel of an overhead wheel, that is, a wheel of an aerial transport vehicle, which is used in semiconductor manufacturing plants to realize the transmission of wafer boxes. Semiconductor manufacturing plants have high requirements for the dustproof level of the workshop. If there is dust, it may affect the quality of the wafers in the wafer box. If the overhead wheel is worn, dust will be generated. At the same time, it will also affect the stability of the operation of the aerial transport vehicle. For this reason, the wheel wear test device 10 of the present application is required to test the wear resistance of the overhead wheel. Of course, in other embodiments of the present application, the wear test device can also perform wear resistance tests on other types of wheels 80 to be measured.

[0047] It is understandable that the current overhead wheel testing equipment may fail to contact the tested running wheel due to wear of the running wheel outer diameter during the test, which may lead to invalid test. In addition, if there is manual intervention during the test, there will be safety hazards. To this end, the present application provides a new type of wheel wear resistance testing device, which can output a constant pressing force to always keep the tested wheel 80 pressed, so that the tested wheel 80 is always in the wear resistance test process, to ensure the accuracy of the test results, and the entire wear resistance test process does not require manual intervention, reducing safety hazards. The specific structure of the wheel wear resistance testing device 10 of one embodiment is introduced below.

[0048] Referring to FIGS. 1 to 3 , in one embodiment, the wheel wear test device 10 includes a frame 100, a pressing mechanism 200, a pressing wheel mechanism 300, a driving mechanism 500, a clamping mechanism 400, a pressure detection member, and a detection mechanism 600. The pressing wheel mechanism 300 is arranged on the side of the pressing mechanism 200 facing the wheel 80 to be measured, and the pressing mechanism 200 can abut or disengage from the pressing wheel mechanism 300, and the pressing wheel mechanism 300 has a rotatable pressing wheel 330. The pressing mechanism 200 can press the pressing wheel mechanism 300 to move relative to the frame 100, so that the pressing wheel 330 presses the wheel 80 to be measured on the wheel shaft 70 to be measured, and the pressure detection member 900 is used to detect the pressing force when the pressing wheel 330 presses the wheel 80 to be measured, and the pressure detection member 900 is connected to the pressing mechanism 200 in communication, so that the pressing mechanism 200 presses the pressing wheel according to the size of the pressing force. The clamping mechanism 400 is used to clamp the measured wheel axle 70, the driving mechanism 500 is connected to the measured wheel axle 70 and drives the measured wheel axle 70 to rotate, and the detection mechanism 600 at least partially corresponds to the measured wheel 80 to detect the wear of the measured wheel 80 in real time.

[0049] The frame 100 is an integral support of the wheel wear test device 10. The frame 100 is used to realize the integral support of each component in the wheel wear test device 10, so as to form an integral wheel wear test device 10, which is convenient for the use of the wheel wear test device 10. Moreover, the frame 100 can be directly placed on the ground or other test platforms to meet the wear test requirements of the wheel 80 to be tested. Optionally, a support foot is provided at the bottom of the frame 100, and the support foot plays a supporting role. The pressing mechanism 200 is used to output a descending motion to realize the output of a pressing force, and the pressing wheel mechanism 300 can press the wheel 80 to be tested under the action of the pressing mechanism 200.

[0050] The height direction in this application is the direction in which the pressing mechanism 200 outputs the movement, that is, the up-down direction shown in Figures 1 to 3, and the length direction is the left-right direction shown in Figures 1 and 3. The tested wheel axle 70 is placed on the frame 100 along the length direction. The following text will take the up-down, left-right and right directions as the reference when describing the wheel wear test device 10, and will not be repeated in the following text. It is worth noting that this application takes the directions shown in Figures 1 to 3 as the reference when describing the specific embodiments of the wheel wear test device 10, but the use of the wheel wear test device 10 is not limited to the directions shown in Figures 1 to 3, and can also be used in a flat manner.

[0051] The pressing mechanism 200 and the pressing wheel mechanism 300 are both arranged above the frame 100, and the pressing wheel mechanism 300 is located below the pressing mechanism 200. When the pressing mechanism 200 outputs a descending motion, it can abut against the pressing wheel mechanism 300 and push the pressing wheel mechanism 300 to descend along the frame 100, so that the pressing wheel mechanism 300 presses against the measured wheel 80. Moreover, when the pressing wheel mechanism 300 stably presses against the measured wheel 80, the pressing mechanism 200 can stop further descending and maintain the current position, so that the pressing wheel mechanism 300 is in a state of maintaining the pressing against the measured wheel 80. The clamping mechanism 400, the driving mechanism 500 and the detection mechanism 600 are located at the lower part of the frame 100, and the measured wheel 80 is usually arranged on the measured wheel shaft 70, and the measured wheel shaft 70 and the measured wheel 80 can rotate coaxially. The clamping mechanism 400 is used to clamp the measured wheel shaft 70 with the measured wheel 80. After the clamping mechanism 400 clamps the measured wheel axle 70 , the radial position of the measured wheel axle 70 can be restricted to prevent the measured wheel axle 70 from moving, so that the measured wheel 80 can be in contact with the pressing wheel mechanism 300 .

[0052] The driving mechanism 500 can drive the measured wheel shaft 70 to rotate, and then the measured wheel shaft 70 can drive the measured wheel 80 to rotate synchronously. It can be understood that when the pressing mechanism 200 drives the pressing wheel mechanism 300 to press the measured wheel 80, the driving mechanism 500 can drive the measured wheel shaft 70 to drive the measured wheel 80 to rotate. At this time, the measured wheel 80 can generate a certain friction with the pressing wheel mechanism 300. After a predetermined time, the friction can cause a certain wear of the measured wheel 80 to simulate the wear of the measured wheel 80, thereby realizing the wear test of the measured wheel 80. In other words, when the measured wheel 80 rotates, a certain pressing force is applied to the measured wheel 80 through the cooperation of the pressing mechanism 200 and the pressing wheel mechanism 300, so that the measured wheel 80 can generate friction so that the outer diameter of the measured wheel 80 is gradually reduced due to wear, thereby achieving the purpose of the wear test of the measured wheel 80.

[0053] The detection mechanism 600 at least partially corresponds to the wheel 80 to be tested. During the entire wear test process, the outer diameter of the wheel 80 to be tested is gradually reduced. The detection mechanism 600 can detect the wear of the wheel 80 to be tested in real time, thereby realizing the wear test of the wheel 80 to be tested. It can be understood that when the wheel 80 to be tested is worn, the distance between the detection mechanism 600 and the wheel 80 to be tested increases. The detection mechanism 600 can detect the distance between it and the wheel 80 to be tested in real time, thereby determining the wear of the wheel 80 to be tested.

[0054] The pressing mechanism 200 of the present application can output a constant pressing force so that the pressing wheel mechanism 300 can always keep pressing against the wheel 80 to be tested. When the outer diameter of the wheel 80 to be tested gradually decreases during the wear test, the pressing mechanism 200 can output a pressing motion to drive the pressing wheel mechanism 300 to keep pressing against the wheel 80 to be tested, so that the wheel 80 to be tested can always be in the wear test process, thereby ensuring the accuracy of the wear test results. The pressing wheel mechanism 300 has a rotatable clamping wheel 330, and when the pressing wheel mechanism 300 descends, the clamping wheel 330 can press against the wheel 80 to be tested. In order to ensure that the pressing force of the pressing mechanism 200 and the pressing wheel mechanism 300 on the wheel 80 to be tested is accurately measured, the wheel wear test device 10 of the present application also includes a pressure detection member 900. When the pressing mechanism 200 presses the pressing wheel mechanism 300 , the pressing wheel 330 presses against the measured wheel 80 with a certain pressing force. The pressure detection member 900 can detect the pressing force of the pressing wheel 330 on the measured wheel 80 in real time.

[0055] During the wear test, when the wheel 80 to be measured rotates, the clamping wheel 330 can be driven to rotate synchronously. The contact friction between the wheel 80 to be measured and the clamping wheel 330 is rolling friction. The rolling friction between the clamping wheel 330 and the wheel 80 to be measured can cause the wheel 80 to be measured to wear, and the outer diameter of the wheel 80 to be measured to be reduced. At this time, the pressing force of the clamping wheel 330 on the wheel 80 to be measured decreases, and then the pressure detection member 900 can detect the decrease in the pressing force. According to the detection result of the pressure detection member 900, the pressing mechanism 200 can be controlled to drive the clamping wheel 330 to descend, so that the clamping wheel 330 continues to press against the wheel 80 to be measured. During the entire test, the pressure detection member 900 and the pressing mechanism 200 repeat the above process, so that the clamping wheel 330 can always keep pressing against the wheel 80 to be measured, and ensure that the pressing force is constant until the wear test is completed.

[0056] When the wheel wear test device 10 of the present application performs a wear test on the wheel 80 to be tested, the wheel axle 70 to be tested is placed in the clamping mechanism 400, and the clamping mechanism 400 is used to clamp the wheel axle 70 to be tested. At this time, the wheel axle 70 to be tested can rotate in the clamping mechanism 400, but cannot have radial and axial displacements, and the driving mechanism 500 is connected to one end of the wheel axle 70 to be tested. Subsequently, the pressing mechanism 200 drives the pressing wheel mechanism 300 to perform a pressing operation, and the pressing mechanism 200 can contact the pressing wheel mechanism 300 to make the pressing wheel mechanism 300 descend, and when the pressing wheel mechanism 300 descends, the pressing wheel 330 can press the wheel 80 to be tested.

[0057] When the pressure wheel 330 presses against the measured wheel 80, and the pressure detection component 900 detects that the pressure feedback from the measured wheel 80 reaches the preset pressure value, the pressure detection component 900 controls the pressing mechanism 200 to stop descending. If the pressure detection component 900 detects that the pressing force of the measured wheel 80 does not reach the preset pressure value, the pressure detection component 900 controls the pressing mechanism 200 to drive the pressure wheel mechanism 300 to continue to descend until the pressure detection component 900 detects that the pressing force feedback from the measured wheel 80 reaches the preset pressure value. Then, the driving mechanism 500 drives the measured wheel shaft 70 to drive the measured wheel 80 to rotate, and then the measured wheel 80 can drive the pressure wheel 330 to rotate, so as to perform a wear test on the measured wheel 80.

[0058] During the wear test, the pressure detection member 900 can detect the pressing force fed back by the measured wheel 80 in real time, and can compare the pressing force with the preset pressure value. During the wear test, the outer diameter of the measured wheel 80 will become smaller due to the rolling friction between the measured wheel 80 and the clamping wheel 330. At this time, the pressing force fed back to the pressure detection member 900 by the measured wheel 80 will become smaller. If the pressure detection member 900 detects that the pressing force of the measured wheel 80 does not reach the preset pressure value, the pressure detection member 900 controls the pressing mechanism 200 to drive the clamping wheel mechanism 300 to descend, and then the clamping wheel 330 presses against the measured wheel 80 to increase the pressing force of the clamping wheel 330 on the measured wheel 80. During the entire test, the pressure detection member 900 and the pressing mechanism 200 repeat the above process until the pressure detection member 900 detects that the pressing force fed back by the measured wheel 80 reaches the preset pressure value, and the pressing mechanism 200 stops working.

[0059] In this way, the pressing mechanism 200 can output a constant pressure, and the wear test of the wheel 80 can be continued, and the detection mechanism 600 can provide real-time feedback on the wear of the wheel 80. It can be understood that the preset pressure value is at least one pressure value, or the preset pressure value is a pressure range. When the actual pressing force does not reach the preset pressure value or is outside the range of the preset pressure value, it indicates that the pressing force of the clamping wheel 330 on the wheel 80 is reduced, which will affect the wear of the wheel 80. Therefore, the pressing mechanism 200 needs to continue to descend to control the clamping wheel 330 to keep pressing the wheel 80 to achieve a stable output of the pressing force.

[0060] The wheel wear test device 10 of the above embodiment uses a pressing mechanism 200 to drive the clamping wheel 330 to press against the wheel 80 to be tested. During the wear test, if the pressing force detected by the pressure detection member 900 decreases, the pressing mechanism 200 drives the clamping wheel 330 to move toward the wheel 80 to be tested, so that the clamping wheel 330 always keeps pressing against the wheel 80 to be tested, and then the pressing mechanism 200 outputs a constant pressing force to ensure that the wheel 80 to be tested is always in the wear test process, thereby ensuring that the wear test result is not distorted and is more reliable. At the same time, the detection mechanism 600 can detect the wear of the wheel 80 to be tested in real time, so as to judge the wear condition of the wheel 80 to be tested according to the wear of the wheel 80 to be tested. In this way, the pressing mechanism 200 is used in cooperation with the pressure detection component 900 to enable the pressing mechanism 200 to output a constant pressing force, so that the clamping wheel 330 can always keep pressing against the wheel 80 to be tested, and thus the wheel 80 to be tested can always be in the wear resistance test process, thereby ensuring the accuracy of the test results. In addition, the wear resistance test process does not require manual intervention to adjust the pressing force, thereby reducing safety hazards.

[0061] It is easy to understand that the pressing mechanism 200 constitutes a pushing mechanism that drives the pressing wheel mechanism 300 to move to be in close contact with the measured wheel 80. In some replaceable embodiments, the pushing mechanism is not limited to pushing the pressing wheel mechanism 300 from above, but can also be pushed from other directions.

[0062] Referring to FIGS. 1 to 3 , in one embodiment, the pressing mechanism 200 includes a first driving member 210 and an abutting portion 230. The first driving member 210 is disposed on the frame 100. The abutting portion 230 is disposed at the output end of the first driving member 210 and is capable of abutting against the pressing wheel mechanism 300. The first driving member 210 drives the abutting portion 230 to abut against the pressing wheel mechanism 300 to move relative to the frame 100, so that the pressing wheel 330 abuts against the measured wheel 80 on the measured wheel shaft 70. The pressure detection member 900 is connected to the first driving member 210 in communication, so that the first driving member 210 controls the moving distance of the abutting portion 230 according to the magnitude of the pressing force.

[0063] The first driving member 210 is the power source of the pressing mechanism 200. The first driving member 210 is fixed to the frame 100. The first driving member 210 has an output shaft. The first driving member 210 can drive the output shaft to move up and down. The abutting portion 230 is arranged at the end of the output shaft. The end of the abutting portion 230 can abut against the top of the pressing wheel mechanism 300. When the first driving member 210 drives the output shaft to descend, the output shaft can drive the abutting portion 230 to descend, and then the abutting portion 230 can drive the pressing wheel mechanism 300 to descend by abutting contact. The pressing wheel mechanism 300 has a rotatable pressing wheel 330. When the pressing wheel mechanism 300 descends, the pressing wheel 330 can press the measured wheel 80.

[0064] Optionally, the abutment portion 230 is fixed to the output shaft by a threaded member such as a screw, so as to ensure that the abutment portion 230 is reliably fixed to the output end of the first driving member 210. Optionally, the first driving member 210 is a servo press, and the servo press and the pressure detection member 900 form a closed-loop feedback structure. Once the pressing force detected by the pressure detection member 900 becomes smaller, the servo press can be controlled to control the pressing wheel 330 to descend. Once the pressing force detected by the pressure detection member 900 reaches a preset pressure value, the servo press can be controlled to stop working. Optionally, the first driving member 210 can also be a servo motor or other components that can cooperate with the pressure detection member 900 to output lifting and lowering motion. Of course, in other embodiments of the present application, the pressing mechanism 200 can also be directly a servo press, a servo motor, etc. At this time, the output end of the pressing mechanism 200 can directly press the pressing wheel mechanism 300 to drive the pressing wheel mechanism 300 to move.

[0065] Referring to FIGS. 1 to 3 , in one embodiment, the pressure detection member 900 is disposed on the pressing mechanism 200, or the pressure detection member 900 is disposed on the pressing wheel mechanism 300. It is worth noting that the setting position of the pressure detection member 900 is not limited in principle, as long as the pressure detection member 900 can detect the pressing force of the pressing wheel 330 on the measured wheel 80. Optionally, the pressure detection member 900 is a pressure sensor. Of course, in other embodiments of the present application, the pressure detection member 900 can also be other components capable of realizing pressing force detection.

[0066] Exemplarily, the pressure detection member 900 is disposed in the pressing mechanism 200, and further, the pressure detection member 900 is disposed between the abutment portion 230 and the output shaft of the first driving member 210. The pressure detection member 900 can detect the pressing force of the measured wheel 80 reacting to the pressure detection member 900 through the abutment portion 230, and the pressure detection member 900 is communicatively connected to the first driving member 210, so that the first driving member 210 controls the descending distance of the abutment portion 230 according to the magnitude of the pressing force.

[0067] When the first driving member 210 drives the abutting portion 230 to press the pressing wheel mechanism 300 downward through the output shaft, the pressing wheel 330 presses the measured wheel 80 with a certain pressing force. Since the force is mutual, the pressing force can react to the pressure detection member 900 through the pressing wheel 330, the pressing wheel mechanism 300 and the abutting portion 230, so that the pressure detection member 900 can detect the pressing force applied by the first driving member 210. When the pressing force of the pressing wheel 330 on the measured wheel 80 decreases, the pressure detection member 900 can detect the decrease in the pressing force. According to the detection result of the pressure detection member 900, the first driving member 210 can be controlled to drive the output shaft to descend, and then the output shaft drives the abutting portion 230 to drive the pressing wheel mechanism 300 and the pressing wheel 330 to descend, so that the pressing wheel 330 continues to press the measured wheel 80.

[0068] Of course, in other embodiments of the present application, the pressure detection member 900 may also be provided on the pressing wheel mechanism 300. The pressure detection member 900 can detect the pressing force of the measured wheel 80 reacting to the pressure detection member 900 through the pressing wheel mechanism 300. Optionally, the pressure detection member 900 may be provided between the abutment portion 230 and the pressing wheel mechanism 300, or may be directly provided on the pressing wheel 330, as long as the pressure detection member 900 can detect the pressing force.

[0069] In one embodiment, the wheel wear resistance testing device 10 also includes a controller, which is communicatively connected to the pressure detection member 900 and the first drive member 210, and the pressure detection member 900 can feed back the detected pressing force to the controller in real time. A preset pressure value is pre-stored in the controller, and the first drive member 210 is controlled to move according to the comparison result between the pressing force and the preset pressure value, so that the clamping wheel 330 keeps pressing against the wheel 80 being tested. The controller is electrically connected to the pressure detection member 900 and is also electrically connected to the first drive member 210. The controller can control the first drive member 210 to output a lifting movement or stop working, and the controller can also receive a signal of the pressing force fed back by the pressure detection member 900. The controller, the pressure detection member 900 and the first drive member 210 can form a closed-loop control structure. A preset pressure value is pre-stored in the controller, and the preset pressure value is the set pressing force of the clamping wheel 330 against the measured wheel 80. In this state, the clamping wheel 330 is in a better pressing state against the measured wheel 80, so that the measured wheel 80 is in a better wear state, so as to more truly reflect the wear test condition of the measured wheel 80, thereby ensuring the accuracy of the wear test result.

[0070] After the pressing force detected by the pressure detection member 900 is fed back to the controller, the controller can compare the pressing force with the preset pressure value. If the pressing force reaches the preset pressure value, the controller controls the first driving member 210 to stop descending. At this time, the first driving member 210 outputs a constant pressing force, which can keep the clamping wheel 330 pressed against the measured wheel 80. If the pressing force does not reach the preset pressure value, the controller controls the first driving member 210 to drive the output shaft to drive the abutting portion 230 to descend, and then the abutting portion 230 drives the clamping mechanism to drive the clamping wheel 330 to descend, so that the clamping wheel 330 presses against the measured wheel 80, so as to increase the pressing force of the clamping wheel 330 on the measured wheel 80. During the entire test process, the pressure detection member 900 and the pressing mechanism 200 repeat the above process until the pressure detection member 900 detects that the pressing force fed back by the measured wheel 80 reaches the preset pressure value, and the controller controls the first driving member 210 to stop working.

[0071] Referring to FIG. 1 , in one embodiment, the frame 100 includes a base 110 and a support frame 120, the support frame 120 is arranged on the base 110 and extends in the height direction, the pressing mechanism 200 and the pressing wheel mechanism 300 are arranged on the support frame 120, and the pressing wheel mechanism 300 is located below the pressing mechanism 200, the driving mechanism 500 and the detection mechanism 600 are arranged on the base 110, and the clamping mechanism 400 is arranged on the support frame 120 and the base 110 to clamp the measured wheel shaft 70. Optionally, the support frame 120 is a supporting shell, and the base 110 is arranged in a flat plate shape, so that the support frame 120 and the base 110 play a bearing and supporting role. Of course, in other embodiments of the present application, the base 110 and the support frame 120 can also be a frame or other structural forms capable of bearing and supporting.

[0072] Referring to FIGS. 1 to 4 , in one embodiment, the end of the abutting portion 230 away from the first driving member 210 can abut or disengage from the pressing wheel mechanism 300. That is to say, the relationship between the pressing mechanism 200 and the pressing wheel mechanism 300 of the present application is that they are in abutment with each other. In this way, the constraints between the pressing mechanism 200 and the pressing wheel mechanism 300 can be reduced, so that the abutting portion 230 and the pressing wheel mechanism 300 are a mechanical coupling structure that can be disengaged from each other, and the lifting and lowering movement of the pressing mechanism 200 and the pressing wheel mechanism 300 are avoided. Over-definition between the lifting and lowering movement of the pressing mechanism 200 and the pressing wheel mechanism 300 is avoided, and then the descending movement output by the pressing mechanism 200 can accurately act on the pressing wheel mechanism 300, so that the pressing wheel mechanism 300 can accurately descend along the frame 100, so that the pressing force applied by the first driving member 210 can accurately act on the measured wheel 80, so that the clamping wheel 330 can reliably press the measured wheel 80, and ensure the stability of the overall force transmission.

[0073] It is worth noting that the structural form of the abutment portion 230 is not limited in principle, as long as the abutment portion 230 and the pressure wheel are in contact. Two possible forms of the abutment portion 230 are introduced below, but are not limited to the following two forms.

[0074] Referring to FIGS. 1 to 4 , in one embodiment of the present application, the abutting portion 230 is a tip, which is fixedly arranged at the output end of the first driving member 210, and the tip of the tip abuts against the pressing mechanism 200. The bottom of the tip is a tip, and the top of the tip is fixed to the output shaft of the first driving member 210. The tip is arranged in a conical shape. In this way, while the constraint between the pressing mechanism 200 and the pressing wheel mechanism 300 is cancelled, it is also possible to ensure that the force direction of the tip on the pressing wheel mechanism 300 is downward, reducing / avoiding the components in other directions, so as to ensure the pressing effect of the pressing wheel 330 on the measured wheel 80. Optionally, the outer wall of the tip of the abutting portion 230 is spherical or spherical, and thus has an arc-shaped abutting surface. When the tip of the abutting portion 230 abuts against the pressing wheel mechanism 300, the component of the pushing force in the non-pushing direction can be reduced or avoided, so as to ensure the contact effect between the tip and the pressing wheel mechanism 300.

[0075] In one embodiment, the center axis H1 of the tip coincides with the center axis H2 of the pressing wheel 330, as shown in FIG3 . The tip of the tip can abut against the top of the pressing wheel mechanism 300. The pressing mechanism 200 of this embodiment uses the tip to press against the pressing wheel mechanism 300, so that the constraint between the pressing mechanism 200 and the pressing wheel mechanism 300 can be eliminated while ensuring that the force applied by the tip to the pressing wheel mechanism 300 is directed downward, reducing / avoiding the force in other directions, and then acting on the center axis of the pressing wheel 330, so as to ensure the pressing effect of the pressing wheel 330 on the wheel 80 to be measured.

[0076] In another embodiment of the present application, the abutment portion 230 is an abutment column, one end of which is fixedly arranged at the output end of the first driving member 210, and the other end of which is in contact with the pressure wheel mechanism 300. The abutment column abuts against the pressure wheel mechanism 300 in a surface contact manner. In this way, the constraint between the pressing mechanism 200 and the pressure wheel mechanism 300 can also be eliminated, and the pressing force can be concentrated to ensure the pressing effect of the pressure wheel 330 on the measured wheel 80. Optionally, the abutment column is cylindrical, prismatic, etc. Of course, in other embodiments of the present application, the abutment portion 230 can also be a rod or other structural forms that can achieve abutment contact.

[0077] Referring to FIGS. 1 to 3 and 5, in one embodiment, the pressure wheel mechanism 300 further includes a support assembly 310 and a first guide assembly 320. The first guide assembly 320 is disposed on the frame 100 along the movement direction of the abutting portion 230. The support assembly 310 is movably disposed on the first guide assembly 320, and the pressure wheel 330 is rotatably mounted on the support assembly 310. The pressure wheel 330 is rotatably mounted in the support assembly 310, and the pressure wheel 330 is at least partially exposed from the support assembly 310 so that the pressure wheel 330 can press against the measured wheel 80. The first guide assembly 320 is disposed on the support frame 120 of the frame 100 along the height direction. The support assembly 310 can be connected to the first guide assembly 320, and the first guide assembly 320 can guide the movement of the support assembly 310. When the first driving member 210 drives the abutting portion 230 to press down the supporting assembly 310, the supporting assembly 310 can move downward along the first guiding assembly 320, so that the supporting assembly 310 can be accurately raised and lowered along the height direction, so that the clamping wheel 330 can accurately press against the measured wheel 80.

[0078] Referring to FIGS. 1 to 3 and 5, in one embodiment, the support assembly 310 includes a support seat 311 and a mounting shaft 312, wherein the mounting shaft 312 is disposed on the support seat 311, and the pressure wheel 330 is rotatably disposed on the mounting shaft 312 and at least partially exposed from the support seat 311. The support seat 311 is recessed on one side toward the measured wheel 80 to form a receiving cavity, and the pressure wheel 330 is rotatably mounted in the receiving cavity, and the bottom of the pressure wheel 330 is exposed from the receiving cavity to press against the measured wheel 80. The mounting shaft 312 is a supporting component of the pressure wheel 330, and the mounting shaft 312 is fixedly disposed on the support seat 311, and the pressure wheel 330 is rotatably disposed on the mounting shaft 312. When the measured wheel 80 rotates, the pressure wheel 330 can be driven to rotate around the mounting shaft 312.

[0079] Referring to Fig. 5, in one embodiment, the support assembly 310 further includes a support bearing 313, which is disposed between the pressure wheel 330 and the mounting shaft 312 to rotatably support the pressure wheel 330 on the mounting shaft 312. The support bearing 313 is a rotation support member between the pressure wheel 330 and the mounting shaft 312, the outer ring of the support bearing 313 is installed in the shaft hole of the pressure wheel 330, and the inner ring of the support bearing 313 is fixed to the mounting shaft 312. In this way, the pressure wheel 330 can rotate relative to the mounting shaft 312 through the support bearing 313 to reduce the friction between the pressure wheel 330 and the mounting shaft 312, thereby ensuring smooth rotation of the pressure wheel 330 and avoiding affecting the rotation of the measured wheel 80.

[0080] Referring to FIGS. 1 to 3 , in one embodiment, the first guide assembly 320 includes a first guide rail 321 and a first guide slider 322. The first guide rail 321 is provided on the frame 100 along the moving direction of the abutting portion 230. The first guide slider 322 can be slidably provided on the first guide rail 321 and connected to the support assembly 310. The first guide rail 321 is provided on the frame 100 along the height direction. The first guide slider 322 can be slidably provided on the first guide rail 321. Moreover, the first guide slider 322 is also connected to the support seat 311 of the support assembly 310. When the first driving member 210 drives the abutting portion 230 to descend, the abutting portion 230 can abut the support seat 311 and push the support seat 311 to descend. Then, the support seat 311 can drive the first guide slider 322 to move along the first guide rail 321 to ensure that the trajectory of the support seat 311 is accurate, thereby ensuring that the pressing wheel 330 accurately presses the measured wheel 80.

[0081] Exemplarily, the number of the first guide assembly 320 is two groups, and the two groups of first guide assemblies 320 are symmetrically arranged on both sides of the support assembly 310 to ensure the stability of the support assembly 310 when it descends. The two groups of first guide assemblies 320 are located on the outside of the support seat 311, and the first guide sliders 322 in the two groups of first guide assemblies 320 are respectively connected to the support seat 311 on both sides of the support seat 311. Optionally, the first guide slider 322 is fixedly connected to the support seat 311 by a screw or the like. Of course, in other embodiments of the present application, the number of the first guide assembly 320 can also be one, and the support seat 311 is connected by one first guide slider 322.

[0082] Referring to Figures 1 to 4 and Figures 6 to 8, in one embodiment, the clamping mechanism 400 includes a clamping drive part, a first clamping part 420 and a second clamping part 430. The clamping drive part is disposed on the frame 100, the first clamping part 420 is disposed at the output end of the clamping drive part, and the second clamping part 430 is disposed on the frame 100 and corresponding to the first clamping part 420. When the clamping drive part drives the first clamping part 420 to approach the second clamping part 430, the first clamping part 420 and the second clamping part 430 can rotate to clamp the measured wheel axle 70. When the clamping drive part drives the first clamping part 420 to move away from the second clamping part 430, the first clamping part 420 and the second clamping part 430 release the measured wheel axle 70.

[0083] Exemplarily, the clamping drive portion is a toggle clamp 410, that is, the present application uses the toggle clamp 410 as the power source of the clamping mechanism 400. The toggle clamp 410 is the driving component of the clamping mechanism 400. The toggle clamp 410 is a structural component that can convert rotational motion into lifting motion. It is worth noting that the toggle clamp 410 is a standard component, and its specific structure and operating principle are not described in detail here. Of course, in other embodiments of the present application, the clamping drive portion can also be a clamping drive member, such as a drive motor, etc. The clamping drive member can be connected to the controller for communication, and the clamping drive member automatically drives the first clamping portion 420 to move under the action of the controller, which is not described in detail here. In the following text, the movement process of the clamping mechanism 400 is described only by taking the clamping drive portion as the toggle clamp 410 as an example.

[0084] The toggle clamp 410 is movably disposed on the support frame 120 of the frame 100, the first clamping portion 420 is disposed at the output end of the toggle clamp 410, and the second clamping portion 430 is disposed on the base 110 of the frame 100, and the first clamping portion 420 and the second clamping portion 430 are disposed correspondingly. Moreover, the second clamping portion 430 is disposed on the base 110 of the frame 100, and the position of the second clamping portion 430 is fixed. The toggle clamp 410 can drive the first clamping portion 420 to move relative to the second clamping portion 430, so that the first clamping portion 420 can approach or move away from the second clamping portion 430. When the first clamping portion 420 is away from the second clamping portion 430, the measured wheel shaft 70 can move into or out of the second clamping portion 430, and when the first clamping portion 420 is close to the second clamping portion 430, the first clamping portion 420 and the second clamping portion 430 can realize the rotatable clamping of the measured wheel shaft 70.

[0085] When the operator operates the toggle clamp 410 to lock, the toggle clamp 410 drives the first clamping part 420 to move above the second clamping part 430, and the first clamping part 420 can approach the second clamping part 430. At this time, the first clamping part 420 and the second clamping part 430 can clamp the measured axle 70 to limit the radial displacement of the measured axle 70. When the operator operates the toggle clamp 410 to unlock, the toggle clamp 410 drives the first clamping part 420 to move in a direction away from the measured axle 70, and the first clamping part 420 moves away from the second clamping part 430. At this time, the first clamping part 420 and the second clamping part 430 release the measured axle 70, and the measured axle 70 can be removed, replaced with a new measured axle 70, or the position of the measured axle 70 can be adjusted.

[0086] When the measured wheel 80 needs to be replaced, the operator operates the toggle clamp 410 to drive the first clamping part 420 to move toward the second clamping part 430, and the measured wheel axle 70 can be replaced. After the replacement is completed, the operator operates the toggle clamp 410 to drive the first clamping part 420 to move closer to the second clamping part 430. The toggle clamp 410 cooperates with the first clamping part 420 and the second clamping part 430 to achieve rapid replacement of the measured wheel 80, shorten the replacement time of the measured wheel axle 70, and ensure quick replacement of the measured wheel axle 70, thereby shortening the downtime of the wheel wear test device 10 and reducing the difficulty of replacement. It is worth noting that after the first clamping part 420 and the second clamping part 430 clamp the measured wheel axle 70, the measured wheel axle 70 can rotate between the first clamping part 420 and the second clamping part 430.

[0087] It is worth noting that the structures of the first clamping portion 420 and the second clamping portion 430 are not limited in principle, as long as they can clamp the measured wheel axle 70. Several possible structures of the first clamping portion 420 and the second clamping portion 430 are introduced below.

[0088] Referring to Figures 1, 6 and 7, in one embodiment, the first clamping portion 420 includes a first clamping seat 421 and a first rotating member 422, the second clamping portion 430 includes a second clamping seat 431 and a second rotating member 432, the first rotating member 422 can be rotatably disposed on the side of the first clamping seat 421 facing the second clamping seat 431, the second rotating member 432 can be rotatably disposed on the side of the second clamping seat 431 facing the first clamping seat 421, the first rotating member 422 and the second rotating member 432 cooperate to clamp or release the measured wheel axle 70.

[0089] The first clamping seat 421 is the mounting seat body of the first clamping portion 420, the second clamping seat 431 is the mounting seat body of the second clamping portion 430, the first rotating member 422 is rotatably disposed at the bottom of the first clamping seat 421, and the second rotating member 432 is rotatably disposed at the top of the second clamping seat 431. When the first clamping portion 420 is close to the second clamping portion 430, the first rotating member 422 cooperates with the second rotating member 432 to clamp the measured wheel shaft 70. Moreover, the outer circumferential surfaces of the first rotating member 422 and the second rotating member 432 can contact the measured wheel shaft 70. The measured wheel shaft 70 is driven to adjust its position by the rotatable first rotating member 422 and the second rotating member 432, so as to realize the automatic positioning and centering of the measured wheel shaft 70, ensure that the measured wheel shaft 70 is reliably clamped between the first clamping portion 420 and the second clamping portion 430, and allow the measured wheel shaft 70 to rotate between the first clamping portion 420 and the second clamping portion 430.

[0090] In other embodiments of the present application, the measured wheel axle 70 may be clamped by only the cooperation of the first clamping seat 421 and the second clamping seat 431. Of course, the layout of the first rotating member 422 on the first clamping seat 421 and the layout of the second rotating member 432 on the second clamping seat 431 may be adjusted, as long as the cooperation of the first rotating member 422 and the second rotating member 432 can realize the rotatable clamping of the measured wheel axle 70.

[0091] Referring to FIG. 1 , FIG. 6 and FIG. 7 , in one embodiment, the number of the first rotating member 422 is at least one, the number of the second rotating member 432 is multiple, and the at least one first rotating member 422 and the multiple second rotating members 432 are arranged to form a rotating space for accommodating the measured wheel shaft 70. Optionally, the number of the first rotating member 422 can be one, and the number of the second rotating members 432 can be multiple, and the reliable clamping of the measured wheel shaft 70 is achieved by the cooperation of one first rotating member 422 and multiple second rotating members 432. Optionally, the number of the first rotating member 422 is multiple, and the number of the second rotating member 432 is at least one; or, the number of the first rotating member 422 is multiple, and the number of the second rotating member 432 is also multiple, and the reliable clamping of the measured wheel shaft 70 is achieved by the cooperation of multiple first rotating members 422 and multiple second rotating members 432. Further, the number of the first rotating member 422 is the same as or different from the number of the second rotating member 432.

[0092] Referring to Fig. 1, Fig. 6 and Fig. 7, in one embodiment, the number of the first rotating members 422 is two, the number of the second rotating members 432 is also two, and the two first rotating members 422 and the two second rotating members 432 are arranged in a quadrilateral to enclose a rotation space of the measured wheel shaft 70. Exemplarily, the number of the first rotating members 422 is two, the two first rotating members 422 are symmetrically and rotatably disposed on the first clamping portion 420, and the two first rotating members 422 are arranged to enclose a first receiving groove 4221 for accommodating the measured wheel shaft 70; the number of the second rotating members 432 is two, the two second rotating members 432 are symmetrically and rotatably disposed on the second clamping portion 430, and the two second rotating members 432 are arranged to enclose a second receiving groove 4321 for accommodating the measured wheel 80.

[0093] The two first rotating members 422 are symmetrically arranged on the side of the first clamping portion 420 facing the second clamping portion 430, and the two first rotating members 422 are arranged to form a first V-shaped receiving groove 4221. The two second rotating members 432 are symmetrically arranged on the side of the second clamping portion 430 facing the first clamping portion 420, and the two second rotating members 432 are arranged to form a second V-shaped receiving groove 4321. The V-shaped first receiving groove 4221 and the second receiving groove 4321 can facilitate the positioning of the wheel axle 70 to be measured.

[0094] When the first clamping part 420 and the second clamping part 430 clamp the measured axle 70, the outer circumferences of the first rotating member 422 and the second rotating member 432 can contact the measured axle 70. When the measured axle 70 is installed, the measured axle 70 is located in the first receiving groove 4221 and the second receiving groove 4321, and the measured axle 70 is automatically positioned and centered by the rotatable first rotating member 422 and the second rotating member 432, ensuring that the measured axle 70 is reliably clamped between the first clamping part 420 and the second clamping part 430, and allowing the measured axle 70 to rotate between the first clamping part 420 and the second clamping part 430.

[0095] In other embodiments of the present application, the number of the first rotating member 422 is one, the number of the second rotating member 432 is two, and the first rotating member 422 and the two second rotating members 432 are arranged in a triangle to enclose a rotating space. In this way, the automatic positioning and centering of the measured wheel shaft 70 can be achieved through the rotatable first rotating member 422 and the second rotating member 432, ensuring that the measured wheel shaft 70 is reliably clamped between the first clamping portion 420 and the second clamping portion 430, and allowing the measured wheel shaft 70 to rotate between the first clamping portion 420 and the second clamping portion 430. Of course, the number of the first rotating member 422 and the second rotating member 432 can also be other numbers.

[0096] Optionally, the first rotating member 422 and the second rotating member 432 are both rolling bearings, and the measured axle 70 is rotatably supported by the rolling bearings to achieve the positioning of the measured axle 70. Of course, in other embodiments of the present application, the first rotating member and the second rotating member 432 can also be rotating shafts or other rotatable supporting structures. Moreover, in other embodiments of the present application, the first rotating member 422 can be only provided on the first clamping portion 420, or the second rotating member 432 can be only provided on the second clamping portion 430, so that the measured axle 70 can also be fixed.

[0097] 6 and 7, in one embodiment, the first clamping portion 420 has a first avoidance groove 4211, which is recessed on the surface of the first clamping portion 420 facing the second clamping portion 430; and / or the second clamping portion 430 has a second avoidance groove 4311, which is recessed on the surface of the second clamping portion 430 facing the first clamping portion 420. In this embodiment, the surface of the first clamping portion 420 facing the second clamping portion 430 has a recessed first avoidance groove 4211, which is connected to and corresponds to the first receiving groove 4221, and the surface of the second clamping portion 430 facing the first clamping portion 420 has a recessed second avoidance groove 4311, which is connected to and corresponds to the second receiving groove 4321. When the measured axle 70 is installed between the first clamping portion 420 and the second clamping portion 430 , the measured axle 70 is located between the first accommodating groove 4221 , the second accommodating groove 4321 , the first avoiding groove 4211 and the second avoiding groove 4311 , so as to achieve reliable installation and limiting of the measured axle 70 .

[0098] Referring to Figs. 1 to 3, 6 and 7, in one embodiment, the clamping mechanism 400 further includes a second guide assembly 440, which is disposed on the frame 100 along the movement direction of the first clamping portion 420 and connected to the first clamping portion 420. The second guide assembly 440 is used to guide the movement of the first clamping portion 420. The second guide assembly 440 is disposed on the support frame 120 of the frame 100 along the height direction. When the operator operates the toggle clamp 410, the toggle clamp 410 can drive the first clamping portion 420 to perform lifting movement, and then the second guide assembly 440 can guide the lifting movement of the first clamping portion 420, so that the first clamping portion 420 can be accurately installed on the second clamping portion 430 or separated from the second clamping portion 430.

[0099] Referring to FIGS. 1 to 3, 6 and 7, in one embodiment, the second guide assembly 440 includes a second guide rail 441 and a second guide slider 442. The second guide rail 441 is provided on the frame 100 along the movement direction of the first clamping portion 420, and the second guide slider 442 is slidably provided on the second guide rail 441 and connected to the first clamping portion 420. The second guide rail 441 is provided on the support frame 120 of the frame 100 along the height direction, and the second guide slider 442 is slidably provided on the second guide rail 441, and the second guide slider 442 is also connected to the first clamping portion 420. When the toggle clamp 410 drives the first clamping portion 420 to perform lifting motion, the first clamping portion 420 can drive the second guide slider 442 to synchronously lift and lower along the second guide rail 441 to ensure that the motion trajectory of the first clamping portion 420 is accurate.

[0100] Optionally, there are multiple clamping mechanisms 400, and multiple clamping mechanisms 400 are arranged on the frame 100 along the axial direction of the measured wheel shaft 70. The measured wheel shaft 70 is clamped in sections by multiple clamping mechanisms 400 to limit the radial displacement of the measured wheel shaft 70, so that the measured wheel shaft 70 can only rotate in the clamping mechanism 400 but cannot move. Correspondingly, the number of second guide components 440 is matched with the number of clamping mechanisms 400, that is, each clamping mechanism 400 is correspondingly provided with a second guide component 440. Exemplarily, there are two clamping mechanisms 400, and the two clamping mechanisms 400 are arranged on both sides of the pressing wheel mechanism 300.

[0101] Referring to FIGS. 1 to 3 , in one embodiment, the driving mechanism 500 includes a second driving member 510 and a coupling 520. The second driving member 510 is disposed on the frame 100, and the output end of the second driving member 510 is connected to the measured axle 70 through the coupling 520. The second driving member 510 is a power source of the driving mechanism 500 to drive the measured axle 70 to rotate. The second driving member 510 is disposed on the base 110 of the frame 100, and the coupling 520 is installed on the output end of the second driving member 510, and then the coupling 520 is connected to the measured axle 70. When the second driving member 510 rotates, the measured axle 70 is driven to rotate through the coupling 520. Optionally, the second driving member 510 is a motor. Of course, in other embodiments of the present application, the second driving member 510 can also be other components that output rotational motion. Optionally, the driving mechanism 500 further includes a first bracket 530 , which is disposed on the base 110 of the frame 100 , and the second driving member 510 is fixed to the base 110 via the first bracket 530 .

[0102] Referring to FIGS. 1 to 3 , in one embodiment, the detection mechanism 600 includes a displacement detection member 610, which is disposed on the frame 100. The displacement detection member 610 at least partially corresponds to the measured wheel 80, so that the detection light emitted by the displacement detection member 610 is projected onto the measured wheel 80 and reflected back to the displacement detection member 610 by the outer peripheral surface of the measured wheel 80. The displacement detection member 610 is the main component of the detection mechanism 600. The displacement detection member 610 can detect the distance between it and the measured wheel 80, realize the detection of the wear amount of the measured wheel 80, and judge the wear condition of the measured wheel 80. Specifically, after the detection light emitted by the displacement detection member 610 is projected onto the outer peripheral surface of the measured wheel 80, the measured wheel 80 can reflect the detection light back to the displacement detection member 610. At this time, the displacement detection member 610 can detect the distance between the displacement detection member 610 and the measured wheel 80 by emitting and receiving the detection light, and realize the measurement of the wear condition of the measured wheel 80. Optionally, the displacement detection member 610 is a laser sensor or an infrared sensor, which can measure the distance to determine the wear amount of the measured wheel 80 .

[0103] Moreover, the displacement detection member 610 at least partially corresponds to the measured wheel 80, so that the detection light emitted by the displacement detection member 610 can be projected onto the outer wall of the measured wheel 80, such as the outer peripheral surface, to detect the distance from the measured wheel 80. Optionally, the displacement detection member 610 is disposed on the base 110 or under the base 110, and at least partially corresponds to the measured wheel 80. Optionally, the detection mechanism 600 further includes a second bracket 620, the second bracket 620 is disposed on the base 110 of the frame 100, and the displacement detection member 610 is disposed on the second bracket 620. Referring to Figures 1 to 3, in the present application, the displacement detection member 610 is arranged on the base 110 through the second bracket 620, so that the displacement detection member 610 is located on the radial outside of the measured wheel 80. In this way, the displacement detection member 610 can detect the distance between itself and the measured wheel 80. When the measured wheel 80 is worn and the outer diameter becomes smaller, the displacement detection member 610 can detect the change in the distance between itself and the measured wheel 80, and obtain the wear amount of the measured wheel 80 in the detection direction of the displacement sensor.

[0104] Moreover, the present application also sets the pressure detection member 900 between the abutment portion 230 and the output shaft of the first driving member 210. When the first driving member 210 is pressed down, the pressure detection member 900 can detect the squeezing of the measured wheel 80 by the clamping wheel 330. When the displacement caused by wear is normal and the pressure feedback from the pressure detection member 900 is normal, the displacement and pressure curves are smooth; when the displacement caused by wear is abnormal and the pressure feedback from the pressure detection member 900 is abnormal, the displacement and pressure curves are broken, indicating that the first driving member 210 and the first guide assembly 320 are stuck, the pressing force is abnormal, and the pressure displacement curve is broken and an error is reported, as shown in FIG9. During normal operation, after the clamping wheel 330 moves to a point of contact with the measured wheel 80, it continues to press down until the pressure detection member 900 detects that the pressing force reaches the preset pressure value, and then the first driving member 210 stops pressing down and performs the test.

[0105] The wheel wear test device 10 of the present application optimizes the pressing mechanism 200 to ensure that the test results are accurate and true. At the same time, the clamping mechanism 400 positions the measured wheel axle 70 and simplifies the clamping method of the measured wheel axle 70, so that the replacement of the measured wheel 80 is simple and convenient. The first driving member 210 and the pressure detection member 900 are used to automatically press the pressing wheel mechanism 300, so that the pressing wheel 330 can always keep pressing the measured wheel 80, and ensure that a constant pressing force is applied to the measured wheel 80, so as to avoid the situation that the pressing wheel 330 cannot contact the measured wheel 80 due to the reduction of the diameter of the measured wheel 80 during the wear test, and ensure that the pressing block reliably presses the measured wheel 80 to ensure the accuracy of the test results. At the same time, the toggle clamp 410 is used in the clamping mechanism 400 to drive the first clamping part 420 to move relative to the second clamping part 430, so as to realize the rapid replacement of the measured wheel axle 70, shorten the replacement time and downtime waiting time, reduce the difficulty of installation and replacement, and improve the test efficiency. Moreover, the first guide assembly 320 is used to guide the movement of the pressing mechanism 200 to ensure that the descending trajectory of the clamping wheel 330 is accurate, so that the clamping wheel 330 can accurately press the measured wheel 80. The second guide assembly 440 is used to guide the movement of the first clamping part 420 to ensure that the first clamping part 420 is accurately installed on the second clamping part 430, thereby achieving accurate clamping of the measured wheel shaft 70.

[0106] When the wheel wear test device 10 of the present application performs a wear test on the wheel 80 to be tested, the wheel axle 70 to be tested is placed in the clamping mechanism 400, and the clamping mechanism 400 is used to clamp the wheel axle 70 to be tested. At this time, the wheel axle 70 to be tested can rotate in the clamping mechanism 400, but cannot have radial and axial displacements, and the driving mechanism 500 is connected to one end of the wheel axle 70 to be tested. Subsequently, the pressing mechanism 200 drives the pressing wheel mechanism 300 to perform a pressing operation, and the first driving member 210 drives the output shaft to drive the abutting portion 230 to descend, so that the abutting portion 230 can abut against the pressing wheel mechanism 300 to make the pressing wheel mechanism 300 descend, and when the pressing wheel mechanism 300 descends, the pressing wheel 330 can press against the wheel 80 to be tested.

[0107] When the pressure wheel 330 presses against the measured wheel 80, and the pressure detection member 900 detects that the pressure feedback from the measured wheel 80 reaches the preset pressure value, the pressure detection member 900 controls the first driving member 210 to stop descending. If the pressure detection member 900 detects that the pressure of the measured wheel 80 does not reach the preset pressure value, the pressure detection member 900 controls the first driving member 210 to drive the pressure wheel mechanism 300 to continue to descend until the pressure detection member 900 detects that the pressure feedback from the measured wheel 80 reaches the preset pressure value. Then, the driving mechanism 500 drives the measured wheel shaft 70 to drive the measured wheel 80 to rotate, and then the measured wheel 80 can drive the pressure wheel 330 to rotate, so as to perform a wear test on the measured wheel 80.

[0108] During the wear test, the pressure detection member 900 can detect the pressing force fed back by the measured wheel 80 in real time, and can compare the pressing force with the preset pressure value. During the wear test, the outer diameter of the measured wheel 80 will become smaller due to the rolling friction between the measured wheel 80 and the clamping wheel 330. At this time, the pressing force fed back to the pressure detection member 900 by the measured wheel 80 will become smaller. If the pressure detection member 900 detects that the pressing force of the measured wheel 80 does not reach the preset pressure value, the pressure detection member 900 controls the first drive member 210 to drive the clamping wheel mechanism 300 to descend, and then the clamping wheel 330 presses against the measured wheel 80 to increase the pressing force of the clamping wheel 330 on the measured wheel 80. During the entire test, the pressure detection member 900 and the pressing mechanism 200 repeat the above process until the pressure detection member 900 detects that the pressing force fed back by the measured wheel 80 reaches the preset pressure value, and the first drive member 210 stops working. In this way, the first driving member 210 can output a constant pressure, the wear resistance test of the measured wheel 80 can continue, and the detection mechanism 600 can provide feedback on the wear amount of the measured wheel 80 .

[0109] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0110] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A wheel wear resistance testing device, characterized in that: It includes a frame, a pushing mechanism, a pressing wheel mechanism, a driving mechanism, a clamping mechanism, a pressure detection member, and a detection mechanism arranged on the frame; The pressing wheel mechanism is arranged on the side of the pushing mechanism facing the measured wheel, the pushing mechanism can abut against or be separated from the pressing wheel mechanism, the pressing wheel mechanism has a rotatable clamping wheel, the pushing mechanism can press the pressing wheel mechanism to move relative to the frame, so that the clamping wheel presses against the measured wheel on the measured wheel shaft; The pressure detection member is used to detect the pressing force when the pressure wheel presses against the measured wheel, and the pressure detection member is communicatively connected to the pushing mechanism so that the pushing mechanism presses against the pressure wheel according to the magnitude of the pressing force; The clamping mechanism is used to clamp the measured wheel axle, the driving mechanism is connected to the measured wheel axle and drives the measured wheel axle to rotate, and the detection mechanism at least partially corresponds to the measured wheel to detect the wear amount of the measured wheel in real time.

2. The wheel wear resistance testing device according to claim 1, characterized in that: The wheel wear test device further comprises a controller, wherein the controller is communicatively connected to the pressure detection member and the pushing mechanism, and the pressure detection member can feed back the detected pressing force to the controller in real time; The controller stores a preset pressure value in advance, and controls the movement of the pushing mechanism according to the comparison result between the pressing force and the preset pressure value, so that the clamping wheel keeps pressing against the measured wheel.

3. The wheel wear resistance testing device according to claim 1, characterized in that: The pushing mechanism includes a first driving member and an abutting portion, wherein the first driving member is disposed on the frame, and the abutting portion is disposed at an output end of the first driving member and is capable of abutting against the pressing wheel mechanism; Wherein, the abutting portion is a tip, the tip is fixedly arranged at the output end of the first driving member, and the central axis of the tip coincides with the central axis of the pressing wheel, and the tip of the tip abuts against the pressing wheel mechanism; The outer wall of the tip of the abutting portion is spherical or spherical, and the tip of the abutting portion abuts against the pressing wheel mechanism; Alternatively, the abutting portion is an abutting column, one end of which is fixedly arranged at the output end of the first driving member, and the other end of which is in contact with the pressing wheel mechanism.

4. The wheel wear resistance testing device according to claim 1, characterized in that: The pressure detection component is arranged on the pushing mechanism, or the pressure detection component is arranged on the pressing wheel mechanism.

5. The wheel wear resistance testing device according to claim 1, characterized in that: The pressing wheel mechanism also includes a supporting assembly and a first guiding assembly. The first guiding assembly is arranged on the frame along the movement direction of the pushing mechanism. The supporting assembly can be movably arranged on the first guiding assembly. The pressing wheel can be rotatably installed on the supporting assembly.

6. The wheel wear resistance testing device according to claim 5, characterized in that: The support assembly includes a support seat and a mounting shaft, wherein the mounting shaft is disposed on the support seat, and the pressing wheel is rotatably disposed on the mounting shaft and at least partially exposes the support seat; The support assembly further includes a support bearing, which is disposed between the pressure wheel and the mounting shaft to rotatably support the pressure wheel on the mounting shaft.

7. The wheel wear resistance testing device according to claim 1, characterized in that: The clamping mechanism comprises a clamping driving part, a first clamping part and a second clamping part, wherein the clamping driving part is movably arranged on the frame, the first clamping part is arranged at the output end of the clamping driving part, and the second clamping part is arranged on the frame and corresponding to the first clamping part. When the clamping driving part drives the first clamping part to approach the second clamping part, the first clamping part and the second clamping part can rotate to clamp the measured wheel axle, and when the clamping driving part drives the first clamping part to move away from the second clamping part, the first clamping part and the second clamping part release the measured wheel axle; The clamping drive portion is a clamping drive member or a toggle clamp.

8. The wheel wear resistance testing device according to claim 7, characterized in that: The first clamping portion includes a first clamping seat and a first rotating member, the second clamping portion includes a second clamping seat and a second rotating member, the first rotating member is rotatably disposed on a side of the first clamping seat facing the second clamping seat, the second rotating member is rotatably disposed on a side of the second clamping seat facing the first clamping seat, the first rotating member cooperates with the second rotating member to clamp or release the measured wheel axle; The number of the first rotating member is at least one, the number of the second rotating member is multiple, and the at least one first rotating member and the multiple second rotating members are arranged to form a rotating space for accommodating the measured wheel axle; or, the number of the first rotating member is multiple, the number of the second rotating member is at least one, and the multiple first rotating members and the at least one second rotating member are arranged to form a rotating space for accommodating the measured wheel axle; The first rotating member and the second rotating member are rolling bearings or rotating shafts.

9. The wheel wear resistance testing device according to any one of claims 1 to 8, characterized in that: The driving mechanism comprises a second driving member and a coupling. The second driving member is arranged on the frame. The output end of the second driving member is connected to the measured wheel axle through the coupling.

10. The wheel wear resistance testing device according to any one of claims 1 to 8, characterized in that: The detection mechanism includes a displacement detection member, which is arranged on the frame and corresponds to the measured wheel at least partially along the axial direction and / or radial direction of the measured wheel, so that the detection light emitted by the displacement detection member is projected onto the measured wheel and reflected back to the displacement detection member by the measured wheel to detect the wear amount of the measured wheel.

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