A brake steel back abrasion testing device

Abstract

The present application relates to the technical field of brake steel back abrasion test, and particularly relates to a brake steel back abrasion test device. The present application provides a brake steel back abrasion test device which can be quickly measured after detection and improve the measurement stability. The brake steel back abrasion test device comprises a mounting seat, a first driving motor, a bearing wheel, a first mounting frame and a cover plate, etc. The first driving motor is connected to the upper side of the rear part of the mounting seat through bolts. The bearing wheel is rotatably connected to the upper part of the mounting seat. The bearing wheel is connected to the output shaft of the first driving motor. The first mounting frame is connected to the front side of the upper part of the mounting seat through bolts. The cover plate is clamped to the first mounting frame. The first sliding frame is pushed along the first fixed frame, so that the detection ruler can be close to the bearing wheel for detection, and the abrasion value of the bearing wheel is obtained, thereby judging the abrasion performance of the brake steel back, reducing the operation steps in the detection process, and improving the detection efficiency.

Description

Technical Field

[0001] This invention relates to the field of brake steel back wear testing technology, and more particularly to a brake steel back wear testing device. Background Technology

[0002] Brake backing wear test is a method to test the degree of wear of brakes. In a brake, the brake pad is the part that contacts the brake disc, and the base of the brake pad is usually made of a steel backing material, which plays a supporting role for the brake pad. As the usage time increases, the brake backing material will gradually wear down, affecting the performance and life of the brake.

[0003] Brake backing wear testing is typically performed using a wear testing machine. This machine simulates brake usage under certain conditions, causing friction between the brake pads and the brake disc. During the test, the brake pads and brake disc are subjected to wear tests within the testing machine. The difference in the remaining thickness of the brake pad backing material before and after the test is calculated at the same time interval to assess the degree of wear of the backing material. Alternatively, the degree of wear of the brake disc can be determined by measuring it. However, existing devices are inconvenient for calculation, requiring the use of an additional measuring machine for alignment and measurement, which increases the number of steps and reduces testing efficiency. Furthermore, handheld measuring machines are susceptible to human error, leading to reduced accuracy.

[0004] Therefore, in order to address the above problems, a brake steel back wear testing device is now being developed that facilitates rapid measurement after detection and improves measurement stability. Summary of the Invention

[0005] To overcome the inconvenience of existing devices in performing measurements, which require additional measurement machines for alignment and measurement, increasing the number of operation steps and reducing testing efficiency, and the fact that handheld measurement machines are easily affected by human factors, leading to reduced measurement accuracy, this invention provides a brake steel back wear testing device that facilitates rapid measurement after detection and improves measurement stability.

[0006] The technical solution of the present invention is as follows: a brake steel back wear testing device, comprising a mounting base, a first drive motor, a bearing wheel, a first mounting frame, a cover plate, a clamp, and a testing mechanism. The first drive motor is bolted to the upper rear side of the mounting base. The bearing wheel is rotatably connected to the upper part of the mounting base and is connected to the output shaft of the first drive motor. The first mounting frame is bolted to the upper front side of the mounting base. The cover plate is clamped onto the first mounting frame. A clamp for clamping with the first mounting frame is slidably connected to the cover plate. The testing mechanism is provided on the mounting base. The testing mechanism includes a first fixed frame, a first sliding frame, and a testing ruler. The first fixed frame is bolted to the upper right side of the mounting base. The first sliding frame is slidably connected to the first fixed frame. The testing ruler is slidably connected to the lower side of the first sliding frame.

[0007] In a preferred embodiment of the present invention, a lifting mechanism is further included. The lifting mechanism includes a second mounting bracket, a hydraulic cylinder, a lifting assembly, a reciprocating assembly, a lifting frame, and a first limiting member. The second mounting bracket is bolted to the top of the mounting base. A hydraulic cylinder is connected to the rear side of the second mounting bracket. A lifting assembly is connected to the telescopic end of the hydraulic cylinder. A reciprocating assembly is connected between the cover plate and the lifting assembly. A lifting frame that is slidably connected to the first sliding frame is connected to the right side of the lifting assembly. A first limiting member that limits the lifting frame is connected to the right side of the mounting base.

[0008] In a preferred embodiment of the present invention, a rotating mechanism is further included. The rotating mechanism includes a second sliding frame, a second drive motor, a first rotating roller, a third mounting frame, and a first lead screw. The second sliding frame is slidably connected to the lower part of the mounting base. The second drive motor is connected to the right side of the second sliding frame. The first rotating roller is connected to the output shaft of the second drive motor. The first rotating roller is rotatably connected to the second sliding frame. The third mounting frame is bolted to the middle position of the rear part of the mounting base. The first lead screw, which is threadedly connected to the second sliding frame, is rotatably connected to the third mounting frame.

[0009] In a preferred embodiment of the present invention, a push-out mechanism is further included. The push-out mechanism includes a fixed frame, a second limiting member, a third sliding frame, a connecting member, a sliding member, a spring, a limiting frame, and a push-out member. The fixed frame is bolted to the upper left side of the mounting base. The second limiting member is bolted to the middle of the top of the fixed frame. The third sliding frame is slidably connected to the second limiting member. The connecting member is bolted to the left side of the lifting assembly. The sliding member is slidably connected to the front left side of the connecting member and is slidably connected to the third sliding frame. A spring is connected between the sliding member and the connecting member. The limiting frame is connected to the top of the first mounting frame. Both the left and right sides of the limiting frame are slidably connected to push-out members for pushing out the brake steel back and slidably connected to the third sliding frame.

[0010] In a preferred embodiment of the present invention, an adjustment mechanism is further included. The adjustment mechanism includes a fixed seat and a second lead screw. The right sides of the front and rear parts of the first sliding frame are bolted to the fixed seats. The fixed seats are rotatably connected to the second lead screw, which is threadedly connected to the detection ruler.

[0011] In a preferred embodiment of the present invention, an auxiliary mechanism is further included. The auxiliary mechanism includes a second rotating roller and a second fixed frame. The second fixed frame is bolted to the left side of the second sliding frame, and the second rotating roller is rotatably connected to the second fixed frame.

[0012] In a preferred embodiment of the present invention, the lifting assembly includes a connecting frame and a connecting block. The connecting frame is slidably connected to the front of the second mounting frame, the rear of the connecting frame is connected to the top of the telescopic end of the hydraulic cylinder, the bottom of the connecting frame is connected to the connecting block, and the connecting block is connected to the top of the cover plate.

[0013] In a preferred embodiment of the present invention, the reciprocating assembly includes a reciprocating cylinder, a connecting rod, and a fixing member. Fixing members are connected to the front and rear sides of the left and right parts of the cover plate, and a reciprocating cylinder is connected to each fixing member. The telescopic rods of the reciprocating cylinders are connected to the outer side of the adjacent bolts, and a connecting rod is connected between the reciprocating cylinder and the lifting assembly.

[0014] In a preferred embodiment of the present invention, the lifting frame is connected to ribs for improving stability.

[0015] In a preferred embodiment of the present invention, the bottom of the fixed frame is a mechanism that tilts to the left.

[0016] Compared with the prior art, the present invention has the following advantages: 1. The present invention pushes the first sliding frame along the first fixed frame, so that the detection ruler can approach the bearing wheel for detection, obtain the wear value of the bearing wheel, and thus determine the wear performance of the brake steel back, reducing the operation steps in the detection process and improving the detection efficiency.

[0017] 2. This invention controls the movement of the lifting assembly by extending and retracting the hydraulic cylinder, thereby enabling the cover plate to rise and fall automatically. At the same time, the lifting assembly drives the lifting frame to move, so that the first sliding frame can drive the detection ruler to automatically approach for detection, thereby enhancing the degree of automation and improving testing efficiency.

[0018] 3. The present invention controls the rotation of the first lead screw to drive the second sliding frame to slide upward along the mounting base, so that the first rotating roller can fit against the bearing wheel. Then, the second drive motor is started, so that the output shaft of the second drive motor drives the first rotating roller to rotate, thereby driving the bearing wheel to rotate slowly for wear measurement.

[0019] 4. The present invention uses a lifting component to drive the connecting parts to move upward, thereby causing the sliding parts to push the third sliding frame to slide to the left, so that the push-out parts can slide out and push the brake steel back into the fixed frame for discharge, eliminating the need for inspection personnel to manually remove the brake steel back, thus improving operational safety. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a schematic diagram of the partially exploded three-dimensional structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the detection mechanism of the present invention.

[0023] Figure 4 This is a three-dimensional structural diagram of the detection mechanism of the present invention.

[0024] Figure 5 This is a three-dimensional structural diagram of the lifting mechanism of the present invention.

[0025] Figure 6 This is a three-dimensional structural diagram of the rotating mechanism of the present invention.

[0026] Figure 7 This is a schematic diagram of the rotating mechanism of the present invention.

[0027] Figure 8 This is a three-dimensional structural diagram of the ejection mechanism of the present invention.

[0028] Figure 9 This is a partial three-dimensional structural diagram of the ejection mechanism of the present invention.

[0029] Figure 10 This is a three-dimensional structural diagram of the adjustment mechanism of the present invention.

[0030] Figure 11 This is a three-dimensional structural diagram of the auxiliary mechanism of the present invention.

[0031] The above-mentioned drawings include the following reference numerals: 1. Mounting base; 2. First drive motor; 3. Bearing wheel; 4. First mounting bracket; 5. Cover plate; 6. Clamp; 7. Detection mechanism; 71. First fixed bracket; 72. First sliding bracket; 73. Detection ruler; 8. Lifting mechanism; 81. Second mounting bracket; 82. Hydraulic cylinder; 83. Lifting assembly; 84. Reciprocating assembly; 85. Lifting bracket; 86. First limiting member; 9. Rotation mechanism; 91. Second sliding bracket; 92. Second drive motor, 93, first rotating roller, 94, third mounting bracket, 95, first lead screw, 10, ejection mechanism, 101, fixed frame, 102, second limiting member, 103, third sliding frame, 104, connecting member, 105, sliding member, 106, spring, 107, limiting frame, 108, ejection member, 11, adjustment mechanism, 111, fixed seat, 112, second lead screw, 12, auxiliary mechanism, 121, second rotating roller, 122, second fixed frame. Detailed Implementation

[0032] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0033] A brake steel back wear testing device, such as Figure 1 and Figure 2As shown, the device includes a mounting base 1, a first drive motor 2, a bearing wheel 3, a first mounting bracket 4, a cover plate 5, a bolt 6, and a detection mechanism 7. The first drive motor 2 is bolted to the upper rear part of the mounting base 1, and the output shaft of the first drive motor 2 is oriented forward. The bearing wheel 3 for testing the wear of the brake steel back is rotatably connected to the upper part of the mounting base 1. The bearing wheel 3 is connected to the output shaft of the first drive motor 2. The first mounting bracket 4 for placing the brake steel back is bolted to the upper front part of the mounting base 1. The cover plate 5 for restricting the brake steel back is clamped on the first mounting bracket 4. The bolt 6 for clamping with the first mounting bracket 4 is slidably connected to the cover plate 5. The mounting base 1 is equipped with a detection mechanism 7 for detecting the degree of wear.

[0034] It should be noted that after the brake steel backing is produced, its wear performance needs to be tested to ensure that the brake is within a safe range during use. During the test, the brake steel backing is first placed on the first mounting bracket 4, and the cover plate 5 is clamped to the first mounting bracket 4 by the bolt 6, thereby limiting and fixing the brake steel backing. Then, the first drive motor 2 is started, and the output shaft of the first drive motor 2 drives the bearing wheel 3 to rotate, thereby causing the bearing wheel 3 to perform a wear test on the brake steel backing. After the test is completed, the first drive motor 2 is turned off, and then the wear degree of the bearing wheel 3 is detected by the detection mechanism 7 to determine the wear performance of the brake steel backing.

[0035] like Figure 1 , Figure 3 and Figure 4 As shown, the testing mechanism 7 includes a first fixed frame 71, a first sliding frame 72 and a testing ruler 73. The first fixed frame 71 is bolted to the upper right side of the mounting base 1. The first sliding frame 72 is slidably connected to the first fixed frame 71. The testing ruler 73 for detecting the wear degree of the bearing wheel 3 is slidably connected to the lower side of the first sliding frame 72.

[0036] It should be noted that after the brake steel back is inspected, the first sliding frame 72 is pushed backward along the first fixed frame 71 so that the measuring ruler 73 can approach the bearing wheel 3. Then, by pushing the measuring ruler 73, the wear degree of the bearing wheel 3 is measured to determine the wear performance of the brake steel back. In summary, by pushing the first sliding frame 72 along the first fixed frame 71, the measuring ruler 73 can approach the bearing wheel 3 for inspection, and the wear value of the bearing wheel 3 can be obtained, thereby determining the wear performance of the brake steel back. This reduces the number of operation steps in the inspection process and improves the inspection efficiency.

[0037] like Figure 1 and Figure 5As shown, it also includes a lifting mechanism 8, which includes a second mounting bracket 81, a hydraulic cylinder 82, a lifting assembly 83, a reciprocating assembly 84, a lifting frame 85, and a first limiting member 86. The top of the mounting base 1 is bolted to the second mounting bracket 81, and the hydraulic cylinder 82 is connected to the rear side of the second mounting bracket 81. The lifting assembly 83, which is used to drive the cover plate 5 to perform automatic lifting and lowering movements, is connected to the telescopic end of the hydraulic cylinder 82. The lifting assembly 83 includes a connecting frame and a connecting block. The connecting frame is slidably connected to the front of the second mounting bracket 81, and the rear of the connecting frame is connected to the top of the telescopic end of the hydraulic cylinder 82. The connecting block is connected to the bottom of the connecting frame. The block is connected to the top of the cover plate 5. A reciprocating assembly 84 is connected between the cover plate 5 and the lifting assembly 83. The reciprocating assembly 84 includes a reciprocating cylinder, a connecting rod, and a fixing component. Fixing components are connected to the front and rear sides of the left and right sides of the cover plate 5. A reciprocating cylinder is connected to each fixing component. The telescopic rod of the reciprocating cylinder is connected to the outside of the adjacent bolt 6. A connecting rod is connected between the reciprocating cylinder and the lifting assembly 83. A lifting frame 85 is connected to the right side of the lifting assembly 83 and is slidably connected to the first sliding frame 72. A rib for improving stability is connected to the lifting frame 85. A first limiting component 86 for limiting the lifting frame 85 is connected to the right side of the mounting base 1.

[0038] It should be noted that during the performance test of the brake steel backing, the extension end of the hydraulic cylinder 82 can be controlled to drive the lifting assembly 83 to move, thereby causing the lifting assembly 83 to slide along the second mounting bracket 81, which in turn drives the cover plate 5 to move downward and cover and limit the brake steel backing. Then, the reciprocating assembly 84 is controlled to push the adjacent latches 6 to lock the cover plate 5. After the test is completed, the reciprocating assembly 84 is first controlled to drive all the latches 6 to slide outward, so that the cover plate 5 is no longer locked. Then, the extension end of the hydraulic cylinder 82 is controlled to drive the lifting assembly 83 to slide upward along the second mounting bracket 81, thereby causing the cover plate 5 to move downward. The sliding mechanism opens the cover plate, removing the limit on the brake backing. Simultaneously, as the lifting assembly 83 moves upward, the lifting frame 85 slides upward under the guidance of the first limiting member 86. This causes the second sliding member 105 to slide backward along the lifting frame 85, allowing the detection ruler 73 to automatically approach the bearing wheel 3 for inspection. In summary, by controlling the movement of the lifting assembly 83 through the extension end of the hydraulic cylinder 82, the cover plate 5 can automatically rise and fall. Simultaneously, the lifting assembly 83 drives the lifting frame 85 to move, enabling the first sliding frame 72 to automatically approach the detection ruler 73 for inspection, thus enhancing automation and improving testing efficiency.

[0039] like Figure 1 , Figure 6 and Figure 7As shown, it also includes a rotating mechanism 9, which includes a second sliding frame 91, a second drive motor 92, a first rotating roller 93, a third mounting frame 94, and a first lead screw 95. The second sliding frame 91 is slidably connected to the lower part of the mounting base 1, and the second drive motor 92 is connected to the right side of the second sliding frame 91. The output shaft of the second drive motor 92 is oriented forward, and the first rotating roller 93 for driving the bearing wheel 3 to rotate slowly is connected to the output shaft of the second drive motor 92. The first rotating roller 93 is rotatably connected to the second sliding frame 91. The third mounting frame 94 is bolted to the middle position of the rear part of the mounting base 1, and the first lead screw 95, which is threadedly connected to the second sliding frame 91, is rotatably connected to the third mounting frame 94.

[0040] It should be noted that after the brake steel back wear test is completed, the first lead screw 95 is rotated to make the second sliding frame 91 move upward along the mounting base 1, thereby causing the second sliding frame 91 to drive the second drive motor 92 to move upward, so that the first rotating roller 93 can fit into the bearing wheel 3. After the fit is completed, the second drive motor 92 is started, so that the second drive motor 92 rotates slowly, so that the first rotating roller 93 drives the bearing wheel 3 to rotate slowly. Then, the wear condition of the bearing wheel 3 is calculated in conjunction with the measuring ruler 73. After the calculation is completed, the second drive motor 92 is turned off, and the first lead screw 95 is controlled to rotate in the opposite direction, so that the second sliding frame 91 slides down along the mounting base 1 to reset, and the first rotating roller 93 disengages from the bearing wheel 3. In summary, by controlling the rotation of the first lead screw 95 to drive the second sliding frame 91 to slide upward along the mounting base 1, the first rotating roller 93 can fit into the bearing wheel 3. Then, the second drive motor 92 is started, so that the output shaft of the second drive motor 92 drives the first rotating roller 93 to rotate, thereby driving the bearing wheel 3 to rotate slowly for wear calculation.

[0041] like Figure 1 , Figure 8 and Figure 9As shown, it also includes a push-out mechanism 10, which includes a fixed frame 101, a second limiting member 102, a third sliding frame 103, a connecting member 104, a sliding member 105, a spring 106, a limiting frame 107, and a push-out member 108. The upper left side of the mounting base 1 is bolted to a fixed frame 101 for supporting the tested brake steel back. The bottom of the fixed frame 101 has a left-tilting mechanism. The top center of the fixed frame 101 is bolted to a second limiting member 102. A third sliding frame 103 is slidably connected to 102. A connector 104 is bolted to the left side of the lifting assembly 83. A sliding member 105 is slidably connected to the third sliding frame 103 on the front left side of the connector 104. A spring 106 is connected between the sliding member 105 and the connector 104. A limit frame 107 is connected to the top of the first mounting frame 4. Both the left and right sides of the limit frame 107 are slidably connected to a push-out member 108 for pushing out the brake steel back and slidably connected to the third sliding frame 103.

[0042] It should be noted that after the brake steel back inspection is completed, as the lifting assembly 83 begins to move upward, it will drive the connecting piece 104 to move upward, thereby causing the sliding piece 105 to move upward along the third sliding frame 103. The sliding piece 105 then pushes the third sliding frame 103 to the left along the second limiting piece 102. As the third sliding frame 103 slides to the left, it will drive the pusher 108 to slide forward and backward along the limiting frame 107, thus pushing the inspected brake steel back into the fixed frame 101 for discharge. When the brake steel back needs to be inspected again, the pusher 108 is first pushed back to its original position, causing the pusher 108 to drive the third sliding frame 103 to slide to the right and reset. Then, the lifting assembly 83 begins to move downward to reset. The connecting member 104 causes the sliding member 105 to move downwards and reset. At this time, the sliding member 105 will contact the left side of the third sliding frame 103 and be squeezed by the third sliding frame 103 during the descent, causing the sliding member 105 to slide to the left. The spring 106 is stretched by force. When the sliding member 105 continues to move downwards to the notch position of the third sliding frame 103, under the action of the spring 106, the sliding member 105 will slide to the right and reset, returning to the inside of the third sliding frame 103. In summary, the lifting component 83 drives the connecting member 104 to move upwards, thereby causing the sliding member 105 to push the third sliding frame 103 to slide to the left, so that the ejector 108 can slide out and push the brake steel back into the fixed frame 101 for discharge. There is no longer a need for the inspection personnel to manually remove the brake steel back, improving the operational safety.

[0043] like Figure 1 and Figure 10As shown, it also includes an adjustment mechanism 11, which includes a fixed seat 111 and a second lead screw 112. The front and rear right sides of the first sliding frame 72 are both connected to the fixed seat 111 by bolts. The fixed seat 111 is rotatably connected to the second lead screw 112, and the second lead screw 112 is threadedly connected to the measuring ruler 73.

[0044] It should be noted that when the position of the measuring scale 73 needs to be adjusted, the measuring scale 73 can be moved stably by rotating the second lead screw 112. At the same time, the self-locking effect between the second lead screw 112 and the measuring scale 73 improves the stability of the measuring scale 73.

[0045] like Figure 1 and Figure 11 As shown, it also includes an auxiliary mechanism 12, which includes a second rotating roller 121 and a second fixed frame 122. The second fixed frame 122 is bolted to the left side of the second sliding frame 91, and the second rotating roller 121 for assisting the first rotating roller 93 is rotatably connected to the second fixed frame 122.

[0046] It should be noted that as the first rotating roller 93 drives the bearing wheel 3 to rotate, the bearing wheel 3 will simultaneously drive the second rotating roller 121 to rotate, thereby achieving the effect of assisting the first rotating roller 93 to drive the bearing wheel 3 to rotate stably.

[0047] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A brake steel back wear testing device, comprising a mounting base (1), a first drive motor (2), a bearing wheel (3), a first mounting frame (4), a cover plate (5), a bolt (6), and a testing mechanism (7), wherein the first drive motor (2) is bolted to the upper rear side of the mounting base (1), the bearing wheel (3) is rotatably connected to the upper part of the mounting base (1), the bearing wheel (3) is connected to the output shaft of the first drive motor (2), the first mounting frame (4) is bolted to the upper front side of the mounting base (1), the cover plate (5) is snapped onto the first mounting frame (4), and the bolt (6) for snapping onto the first mounting frame (4) is slidably connected to the cover plate (5), and the testing mechanism (7) is provided on the mounting base (1), characterized in that: The testing mechanism (7) includes a first fixed frame (71), a first sliding frame (72) and a testing ruler (73). The first fixed frame (71) is bolted to the upper right side of the mounting base (1). The first sliding frame (72) is slidably connected to the first fixed frame (71). The testing ruler (73) is slidably connected to the lower side of the first sliding frame (72). It also includes a lifting mechanism (8), which includes a second mounting bracket (81), a hydraulic cylinder (82), a lifting assembly (83), a reciprocating assembly (84), a lifting frame (85), and a first limiting member (86). The top of the mounting base (1) is connected to the second mounting bracket (81) by bolts. The rear side of the second mounting bracket (81) is connected to the hydraulic cylinder (82). The extension end of the hydraulic cylinder (82) is connected to the lifting assembly (83). The reciprocating assembly (84) is connected between the cover plate (5) and the lifting assembly (83). The right side of the lifting assembly (83) is connected to the lifting frame (85) which is slidably connected to the first sliding frame (72). The right side of the mounting base (1) is connected to the first limiting member (86) which limits the lifting frame (85). It also includes an ejection mechanism (10), which includes a fixed frame (101). The upper left side of the mounting base (1) is bolted to a fixed frame (101) for bearing the brake steel back after testing. The bottom of the fixed frame (101) is a left-tilting mechanism. The top middle position of the fixed frame (101) is bolted to a second limiting member (102). The second limiting member (102) is slidably connected to a third sliding frame (103). The left side of the lifting assembly (83) is bolted to a connecting member (104). The front left side of the connecting member (104) is slidably connected to the third sliding frame. The sliding frame (103) is slidably connected to the sliding member (105). A spring (106) connects the sliding member (105) and the connecting member (104). The top of the first mounting frame (4) is connected to a limit frame (107). Both sides of the limit frame (107) are slidably connected to push-out members (108) for pushing out the brake steel back and slidably connecting to the third sliding frame (103). As the lifting assembly (83) begins to move upward, the lifting assembly (83) will drive the connecting member (104) to move upward, thereby causing the sliding member (105) to move upward along the third sliding frame (103). The third sliding frame (103) is pushed to the left along the second limiting member (102) by the sliding member (105). As the third sliding frame (103) slides to the left, it will drive the pusher (108) to slide forward and backward along the limiting member (107) to the front and rear sides respectively. Thus, the pusher pushes the brake steel back after the test is completed into the fixed frame (101) to complete the discharge. When the brake steel back needs to be tested again, the pusher (108) is first pushed back to its original position, so that the pusher (108) drives the third sliding frame (103) to slide to the right to reset. Then the lifting and lowering are performed. When component (83) begins to move downwards to reset, the connecting piece (104) will cause the sliding piece (105) to move downwards to reset. At this time, the sliding piece (105) will contact the left side of the third sliding frame (103) and be squeezed by the third sliding frame (103) during the descent, causing the sliding piece (105) to slide to the left. The spring (106) will be stretched. When the sliding piece (105) continues to move downwards to the notch position of the third sliding frame (103), under the action of the spring (106), the sliding piece (105) will slide to the right to reset and return to the inside of the third sliding frame (103).

2. The brake steel back wear testing device as described in claim 1, characterized in that: It also includes a rotating mechanism (9), which includes a second sliding frame (91), a second drive motor (92), a first rotating roller (93), a third mounting frame (94), and a first lead screw (95). The second sliding frame (91) is slidably connected to the lower part of the mounting base (1), and the second drive motor (92) is connected to the right side of the second sliding frame (91). The first rotating roller (93) is connected to the output shaft of the second drive motor (92), and the first rotating roller (93) is rotatably connected to the second sliding frame (91). The third mounting frame (94) is bolted to the middle position of the rear part of the mounting base (1), and the first lead screw (95) is rotatably connected to the second sliding frame (91) by a thread.

3. The brake steel back wear testing device as described in claim 2, characterized in that: It also includes an adjustment mechanism (11), which includes a fixed seat (111) and a second lead screw (112). The front and rear right sides of the first sliding frame (72) are connected to the fixed seat (111) by bolts. The fixed seat (111) is rotatably connected to the second lead screw (112) between the fixed seats (111). The second lead screw (112) is threadedly connected to the measuring ruler (73).

4. The brake steel back wear testing device as described in claim 3, characterized in that: It also includes an auxiliary mechanism (12), which includes a second rotating roller (121) and a second fixed frame (122). The second fixed frame (122) is bolted to the left side of the second sliding frame (91), and the second rotating roller (121) is rotatably connected to the second fixed frame (122).

5. The brake steel back wear testing device as described in claim 4, characterized in that: The lifting assembly (83) includes a connecting frame and a connecting block. The connecting frame is slidably connected to the front of the second mounting frame (81). The rear of the connecting frame is connected to the top of the telescopic end of the hydraulic cylinder (82). The connecting block is connected to the bottom of the connecting frame. The connecting block is connected to the top of the cover plate (5).

6. The brake steel back wear testing device as described in claim 5, characterized in that: The reciprocating assembly (84) includes a reciprocating cylinder, a connecting rod and a fixing component. The front and rear sides of the left and right sides of the cover plate (5) are connected to the fixing component. The reciprocating cylinder is connected to the fixing component. The telescopic rod of the reciprocating cylinder is connected to the outside of the adjacent bolt (6). The reciprocating cylinder is connected to the lifting assembly (83) by a connecting rod.

7. The brake steel back wear testing device as described in claim 6, characterized in that: The lifting frame (85) is connected to ribs to improve stability.

8. The brake steel back wear testing device as described in claim 7, characterized in that: The bottom of the fixed frame (101) is a mechanism that tilts to the left.

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