VEMS-based rail transit vehicle wheel contour detection device

Abstract

The invention discloses a VEMS-based rail transit vehicle wheel contour detection device, and relates to the technical field of vehicle wheel contour detection, the VEMS-based rail transit vehicle wheel contour detection device comprises a mounting seat, and a detection device is fixed on the inner side of the mounting seat. According to the VEMS-based rail traffic vehicle wheel contour detection device, when the detection equipment does not need to be used, the air cylinder is started to enable the protective cover to rotate so as to shield and protect the detection equipment, and when the protective cover rotates, the protective cover is in contact with the arc-shaped block, so that the protective cover extrudes the arc-shaped block; through a transmission plate, a hinge rod, a rotating rod, a disc, a swing plate and a shifting rod, two sets of push plates can be far away from each other, in snowy weather, accumulated snow at the bottom of the detection equipment can be pushed away through the push plates, and the situation that too much accumulated snow at the bottom of the detection equipment shields a shooting assembly on the detection equipment, and consequently the detection result is inaccurate is prevented; and the follow-up rail operation is influenced.

Description

Technical Field

[0001] The invention relates to the technical field of a wheel profile detection device for a rail transit vehicle based on VEMS, and in particular to a wheel profile detection device for a rail transit vehicle based on VEMS. Background Art

[0002] The VEMS system is supported by a comprehensive data management system (DMS), which includes a measurement database and facilities for analyzing, viewing and reporting measurement data, as well as tools to convert this data into usable, objective maintenance information. The wheel profile VEMS provides highly accurate wheel parameter measurements and generates a complete profile from the back of the rim to the end face of the rim. All measurements can be performed during normal operations, resulting in more accurate data than previously time-consuming manual measurements. In addition, the VEMS system can function as a customized group with other inspection modules to speed up workflows throughout the vehicle segment and provide modules with reliable data. For example, the wheel tread VEMS detects and reports gaps, scratches and roundness deviations by generating an accurate digital image of the entire wheel contact surface around the periphery.

[0003] The existing VEMS rail vehicle wheel profile detection device, when placed outdoors for detection, may have the problem of snow accumulation due to snowy days. Snow may accumulate on the bottom of the detection equipment. If there is too much snow, the snow will block the lens of the shooting component of the detection equipment, which will affect the shooting of the shooting component, resulting in inaccurate detection data and affecting the normal operation of the subsequent track. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a rail transit vehicle wheel profile detection device based on VEMS, which solves the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a VEMS rail transit vehicle wheel profile detection device, comprising a mounting seat, a detection device is fixed on the inner side of the mounting seat, a shooting assembly is arranged on the detection device, a protective assembly for protecting the detection device is arranged on the mounting seat, a cleaning assembly for conveniently cleaning water stains on the shooting assembly is arranged on the detection device, and a striking assembly is arranged on the cleaning assembly; wherein the protective assembly comprises an electric push rod, a connecting block, a fixed block, a rotating shaft, a protective cover, a rotating block, an extrusion rod, a reset spring, a transmission plate, a rotating rod, a swing plate, a disc, a hinged rod, an arc block, a push plate and a lever, the electric push rod is fixed on the inner side of the mounting seat, a fixed block is fixed on the inner side of the mounting seat, a rotating shaft runs through the fixed block, and the rotating shaft A protective cover is fixed to the outer wall, a rotating block is fixed to the end point of the rotating shaft, a connecting block is fixed to the top of the electric push rod, an extrusion rod is fixed to the side wall of the connecting block, and the extrusion rod passes through the through hole of the rotating block. By starting the electric push rod, the connecting block can be driven to move downward, which will cause the extrusion rod to be squeezed at the through hole of the rotating block, driving the rotating block and the rotating shaft to rotate forward, so that the protective cover rotates forward to shield and protect the detection equipment, and a transmission plate is slidably installed on the inner side of the mounting seat, and a return spring is fixed to the bottom of the transmission plate, and the bottom of the return spring is fixed to the inner side of the mounting seat, and an arc block is fixed on the side of the transmission plate away from the return spring. When the protective cover rotates forward to contact the arc surface at the top of the arc block, the protective cover will squeeze the arc block to move downward, driving the transmission plate to move downward, thereby compressing the return spring.

[0006] According to the above technical solution, a rotating rod is rotatably installed on the inner side of the mounting seat, a disc is fixed at the end point of the rotating rod, a hinged rod is hinged at the bottom of the transmission plate, and one end of the hinged rod away from the transmission plate is hinged on the disc. When the transmission plate moves downward, the transmission handle will squeeze the hinged rod, so that the hinged rod can squeeze the disc to rotate.

[0007] According to the above technical solution, a swing plate is fixed to the outer wall of the rotating rod, a push plate is slidably mounted on the inner side of the mounting seat, a lever is fixed to the side wall of the swing plate, and the outer wall of the lever fits with the inner wall of the groove of the side wall of the push plate. When the rotating rod rotates, the swing plate can drive the lever to rotate, so that the lever can squeeze the push plate to move on the mounting seat.

[0008] According to the above technical solution, the cleaning assembly includes a connecting rod, a movable rod, a movable frame, a connecting rod, a cleaning sponge, a block, a U-shaped rod, an extrusion block, a hinged seat and a connecting spring. The connecting rod is fixed to the side wall of the push plate, and the side wall of the detection device is slidably installed with a movable frame. A connecting rod is fixed to the bottom of the movable frame, and a movable rod is hinged to the bottom of the connecting rod. The end of the movable rod away from the connecting rod is hinged to the end point of the connecting rod, and a cleaning sponge is fixed to the inner side of the movable frame. When the push plates move away from each other, the connecting rod moves, pulling the movable rod, driving the connecting rod and the movable frame to move downward.

[0009] According to the above technical solution, a U-shaped rod passes through the moving frame, a hinge seat is fixed at one end of the U-shaped rod, an extrusion block is fixed at the other end of the U-shaped rod, a connecting spring is fixed at the bottom of the hinge seat, the bottom of the connecting spring is fixed to the top of the moving frame, and a stop block is fixed to the side wall of the detection device. When the moving frame moves downward, the U-shaped rod will contact the support block, and when the U-shaped rod is subjected to extrusion force, it will drive the extrusion block to move upward on the moving frame.

[0010] According to the above technical solution, the striking assembly includes a slide plate, a transmission rod, a sleeve, a sleeve rod, a transmission spring, a top plate, a knocking rod, an arc block and a pushing rod. The slide plate is slidably installed on the top of the moving frame, and the transmission rod is hinged on the hinge seat. The end of the transmission rod away from the hinge seat is hinged on the slide plate. A plurality of groups of arc blocks in a linear array are fixed to the top of the slide plate. When the U-shaped rod moves upward in the moving frame, the hinge seat will pull the transmission rod, so that the transmission rod pulls the slide plate to move toward the U-shaped rod.

[0011] According to the above technical solution, a sleeve is fixed on the top of the movable frame, a sleeve rod is slidably installed on the inner wall of the sleeve, a top plate is fixed on the top of the sleeve rod, multiple groups of knocking rods in a linear array are fixed on the bottom of the top plate, and a pushing rod is fixed on the bottom of the top plate.

[0012] According to the above technical solution, a transmission spring is fixed to the bottom of the sleeve rod, and the bottom of the transmission spring is fixed to the inner wall of the sleeve.

[0013] The present invention provides a VEMS-based rail transit vehicle wheel profile detection device, which has the following beneficial effects:

[0014] 1. The VEMS rail vehicle wheel profile detection device, when the detection equipment is not needed, starts the cylinder to allow the protective cover to rotate to shield and protect the detection equipment, and when the protective cover rotates, it will contact the arc block, so that the protective cover squeezes the arc block, and the two sets of push plates are moved away from each other through the transmission plate, hinged rod, rotating rod, disc, swing plate and lever. When it snows, the snow at the bottom of the detection equipment can be pushed away by the push plates to prevent excessive snow at the bottom of the detection equipment from blocking the shooting components on the detection equipment, resulting in inaccurate detection results and affecting the subsequent operation of the track.

[0015] 2. The VEMS rail vehicle wheel profile detection device, when the two groups of push plates move away from each other, will cause the connecting rod to move to pull the movable rod, driving the connecting rod to move downward, so that the moving frame and the cleaning sponge move downward to fit the lens on the shooting component, and can clean up the water stains and impurities attached to the shooting component. When the moving frame moves downward to the U-shaped rod and contacts the stopper, the U-shaped rod will be squeezed and move upward in the moving frame, driving the squeezing block to squeeze out the liquid in the cleaning sponge, which is convenient for subsequent adsorption operations.

[0016] 3. The VEMS-based rail transit vehicle wheel profile detection device, when the U-shaped rod moves upward in the moving frame, the transmission rod can pull the slide plate to move toward the U-shaped rod, which will cause the arc block to move on the push rod. Through the setting of the transmission spring, the push rod can move back and forth up and down, driving the knocking block to knock back and forth up and down on the cleaning sponge, which can knock off the granular impurities attached to the cleaning sponge, preventing the granular impurities from being attached to the cleaning sponge, which may easily cause scratches on the shooting component when moving on the lens on the shooting component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a partial structural schematic diagram of the present invention;

[0019] Figure 3 It is a partial structural schematic diagram of the protection component of the present invention;

[0020] Figure 4 It is a schematic diagram of a partial cross-sectional structure of the present invention;

[0021] Figure 5 A schematic diagram of the structure of the protection component of the present invention;

[0022] Figure 6 This is a schematic diagram of the cleaning component structure of the present invention;

[0023] Figure 7It is a schematic diagram of the cross-sectional structure of the cleaning component of the present invention;

[0024] Figure 8 For the present invention Figure 7 A magnified schematic diagram of the A structure.

[0025] In the figure: 1, mounting base; 2, detection equipment; 3, shooting assembly; 4, protection assembly; 41, electric push rod; 42, connecting block; 43, fixed block; 44, rotating shaft; 45, protective cover; 46, rotating block; 47, extrusion rod; 48, return spring; 49, transmission plate; 410, rotating rod; 411, swing plate; 412, disc; 413, hinged rod; 414, arc block; 415, push plate; 416, lever ; 5. Cleaning assembly; 51. Connecting rod; 52. Movable rod; 53. Moving frame; 54. Connecting rod; 55. Cleaning sponge; 56. Stop block; 57. U-shaped rod; 58. Articulated seat; 59. Connecting spring; 510. Extrusion block; 6. Striking assembly; 61. Slide plate; 62. Transmission rod; 63. Sleeve; 64. Sleeve rod; 65. Transmission spring; 66. Top plate; 67. Knocking rod; 68. Push rod; 69. Arc block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 5An embodiment of the present invention is: a VEMS rail transit vehicle wheel profile detection device, comprising a mounting seat 1, a detection device 2 is fixed on the inner side of the mounting seat 1, a shooting component 3 is installed on the detection device 2, and a protective component 4 for protecting the detection device 2 is arranged on the mounting seat 1, wherein the protective component 4 comprises an electric push rod 41, a connecting block 42, a fixing block 43, a rotating shaft 44, a protective cover 45, a rotating block 46, an extrusion rod 47, a reset spring 48, a transmission plate 49, a rotating rod 410, The swing plate 411, the disc 412, the hinge rod 413, the arc block 414, the push plate 415 and the lever 416, the electric push rod 41 is fixed to the inner side of the mounting seat 1, the inner side of the mounting seat 1 is fixed with a fixed block 43, the fixed block 43 is penetrated by a rotating shaft 44, and the rotating shaft 44 is rotatably connected with the penetration of the fixed block 43, the outer wall of the rotating shaft 44 is fixed with a protective cover 45, the end point of the rotating shaft 44 is fixed with a rotating block 46, the top of the electric push rod 41 is fixed with a connecting block 42, and the connecting block 42 is close to the protective cover 45. An extrusion rod 47 is fixed on one side, and the extrusion rod 47 passes through the through hole in the middle of the rotating block 46, and the penetration part is fitted. A transmission plate 49 is slidably installed on the inner side of the mounting seat 1, and a return spring 48 is fixed to the bottom of the transmission plate 49. The bottom of the return spring 48 is fixed to the inner wall of the mounting seat 1. A rotating rod 410 is rotatably installed on the inner side of the mounting seat 1, and a swing plate 411 is fixed to the outer wall of the rotating rod 410. A disc 412 is fixed to the end point of the rotating rod 410, and a hinged rod 413 is hinged at the bottom of the transmission plate 49. One end of the hinged rod 413 away from the transmission plate 49 is hinged to the side of the disc 412 away from the rotating rod 410, and a push plate 415 is slidably installed on the inner side of the mounting base 1, and a lever 416 is fixed to the side of the swing plate 411 close to the push plate 415, and the outer wall of the lever 416 is fitted with the inner wall of the opening of the side wall of the push plate 415, and two groups of discs 412 and push plates 415 are arranged at the bottom of the detection device 2, and the two groups of discs 412 and push plates 415 are symmetrically arranged with the center line of the mounting base 1 in the vertical direction as the axis of symmetry.

[0028] When the electric push rod 41 is started and the connecting block 42 is driven to move downward, the squeezing rod 47 will be squeezed at the through hole of the rotating block 46, which can drive the rotating shaft 44 and the protective cover 45 to rotate. The protective cover 45 can shield and protect the detection device 2 to prevent dust from falling on the shooting component 3 of the detection device 2 and affecting the shooting accuracy, and can also prevent the detection device 2 from being damaged by collision.

[0029] An arc block 414 is fixed on the side of the transmission plate 49 away from the return spring 48, and the top of the arc block 414 is an arc shape. When the protective cover 45 blocks and protects the detection device 2, the protective cover 45 will squeeze the arc block 414, so that the arc block 414 can move downward, and the disc 412 can be squeezed to rotate through the hinge rod 413, so that the swing plate 411 drives the lever 416 to rotate in the push plate 415, and the snow accumulated at the bottom of the detection device 2 can be pushed through the push plate 415 to prevent excessive snow at the bottom of the detection device on snowy days from blocking the detection device 2, resulting in inaccurate detection results and affecting the operation of subsequent tracks.

[0030] When this embodiment is working: when the detection device 2 is not needed to be used, the electric push rod 41 is started, so that the conveying end of the electric push rod 41 drives the connecting block 42 to move downward, so that the connecting block 42 drives the extrusion rod 47 to move downward in the through hole of the rotating block 46, which will cause the extrusion rod 47 to drive the rotating block 46 to rotate forward, and at the same time, the rotating block 46 and the rotating shaft 44 rotate forward, driving the protective cover 45 to cover the detection device 2, to protect the detection device 2, to prevent the detection device 2 from being exposed to the outside when the detection device 2 is not in use, which is easy to cause damage by collision and cause dust to fall on the shooting component 3 on the detection device 2, affecting the subsequent shooting component 3 to detect the vehicle wheel contour.

[0031] When the protective cover 45 rotates forward to contact the arc surface of the arc block 414, the protective cover 45 returns to the arc surface of the arc block 414 for extrusion. Because the arc block 414 moves downward due to the extrusion force, the transmission plate 49 is driven to move downward, so that the return spring 48 is compressed. When the transmission plate 49 moves downward, the transmission plate 49 squeezes the hinge rod 413, so that the hinge rod 413 rotates at the hinge, so that the hinge rod 413 pushes the two sets of disks 412 at the bottom of the detection device 2 to rotate inward, thereby driving the rotating rod 410 to rotate, thereby driving the swing plate 411 to rotate, so that the lever 416 squeezes the inner side of the push plate 415, so that the lever 416 can move the two sets of push plates 415 at the bottom of the detection device 2 15 are away from each other, because in snowy weather, there may be snow at the bottom of the detection device 2, so the push plate 415 can push away the snow at the bottom of the detection device 2 to prevent excessive snow accumulation from affecting subsequent measurement operations, and when the protective cover 45 rotates to not contact the inclined surface of the arc block 414, because the arc block 414 is not subject to extrusion force and the return spring 48 is in a compressed state, the transmission plate 49 will move upward, so that the transmission plate 49 pulls the hinge rod 413, so that the hinge rod 413 drives the two sets of disks 412 to rotate outward, and the rotating rod 410 drives the swing plate 411 to rotate, so that the lever 416 can push the two sets of push plates 415 closer to each other, so that the push plates 415 return to their original positions for the next operation.

[0032] When the equipment needs to be used, the electric push rod 41 is started to move the connecting block 42 upward, so that the squeezing rod 47 squeezes the through hole of the rotating block 46, so that the rotating block 46 is reversed, and the rotating shaft 44 drives the protective cover 45 to reverse and unfold, so that the detection equipment 2 is exposed, and the normal detection component 2 is performed. When the protective cover 45 is reversed, the arc block 414 is also squeezed, which makes the arc block 414 move downward. In the same way as above, the snow accumulated at the bottom of the detection equipment 2 before use is pushed again, so as to facilitate subsequent detection operations.

[0033] See also Figure 1-Figure 8 On the basis of the above embodiment, another embodiment of the present invention further includes a cleaning component 5 for conveniently cleaning water stains on the shooting component 3 provided on the detection device 2 and a striking component 6 provided on the cleaning component 5, the cleaning component 5 includes a connecting rod 51, a movable rod 52, a moving frame 53, a connecting rod 54, a cleaning sponge 55, a stopper 56, a U-shaped rod 57, an extrusion block 510, a hinge seat 58 and a connecting spring 59; the connecting rod 51 is fixed to the side wall of the push plate 415, the outer wall of the detection device 2 is slidably mounted with a moving frame 53, and a cleaning sponge 55 is fixed to the inner side of the moving frame 53. A cleaning sponge 55 is provided, and a connecting rod 54 is fixed to the bottom of the movable frame 53. A movable rod 52 is hinged to the bottom of the connecting rod 54. One end of the movable rod 52 away from the connecting rod 54 is hinged to the connecting rod 51. A stopper 56 is fixed to the side wall of the detection device 2. A U-shaped rod 57 passes through the movable frame 53, and the U-shaped rod 57 is slidably connected to the penetration point of the movable frame 53. An extrusion block 510 is fixed to one end of the U-shaped rod 57, and a hinge seat 58 is fixed to the other end of the U-shaped rod 57. A connecting spring 59 is fixed to the bottom of the hinge seat 58, and the bottom of the connecting spring 59 is fixed to the top of the movable frame 53.

[0034] The cleaning sponge 55 can be used to clean water stains and impurities attached to the shooting component 3.

[0035] The liquid in the cleaning sponge 55 can be squeezed out by the squeezing block 510, which is convenient for the subsequent adsorption operation, and the top of the cleaning sponge 55 is fitted with the bottom of the top protrusion of the movable frame 53. When the cleaning sponge 55 is squeezed, the cleaning sponge 55 will be pressed against the protrusion of the movable frame 53, which is convenient for drainage operation.

[0036] The striking assembly 6 includes a slide plate 61, a transmission rod 62, a sleeve 63, a sleeve rod 64, a transmission spring 65, a top plate 66, a knocking rod 67, a curved block 69 and a push rod 68; the slide plate 61 is slidably mounted on the top of the moving frame 53, the transmission rod 62 is hinged on the hinge seat 58, and the end of the transmission rod 62 away from the hinge seat 58 is hinged on the slide plate 61, the sleeve 63 is fixed at the top protrusion of the moving frame 53, the sleeve rod 64 is slidably mounted on the inner wall of the sleeve 63, the transmission spring 65 is fixed to the bottom of the sleeve rod 64, the bottom of the transmission spring 65 is fixed to the inner wall of the sleeve 63, and the sleeve rod 6 A top plate 66 is fixed on the top of 4, a plurality of groups of arrayed arc blocks 69 are fixed on the top of the slide plate 61, a push rod 68 is fixed on the bottom of the top plate 66, a plurality of groups of linear arrayed knocking rods 67 are fixed on the bottom of the top plate 66, the bottom of the knocking rod 67 is fitted with the top of the cleaning sponge 55, and the knocking rod 67 is set so that the knocking rod 67 can knock on the top of the cleaning sponge 55 to knock off the granular impurities adhered to the cleaning sponge 55, so as to prevent the granular impurities attached to the cleaning sponge 55 from being damaged when passing through the shooting component 3.

[0037] When the present embodiment is working, when the two groups of push plates 415 move away from each other, the push plates 415 push the connecting rod 51 to squeeze, so that the connecting rod 51 squeezes the movable rod 52, so that the movable rod 52 rotates at the hinge, so that the movable rod 52 pulls the connecting rod 54 to move downward, drives the movable frame 53 to move downward, and makes the cleaning sponge 55 fit the lens of the shooting component 3 to move, and the water stains on the lens of the shooting component 3 can be absorbed by the cleaning sponge 55 to prevent the water stains from adhering to the lens of the shooting component 3 and affecting the later shooting operation of the shooting component 3, and the cleaning sponge 55 is used to clean the shooting component 3. When the moving frame 53 moves downward to the U-shaped rod 57 and contacts the stopper 56 fixed to the side wall of the detection device 2, the cleaning sponge 55 is removed from the shooting component 3. When the U-shaped rod 57 contacts the stopper 56, the U-shaped rod 57 is squeezed and moves upward in the moving frame 53, thereby driving the hinge seat 58 to move upward, causing the connecting spring 59 to deform and exert a pulling force on the hinge seat 58. When the U-shaped rod 57 moves upward in the moving frame 53, it can drive the squeezing block 510 to squeeze the cleaning sponge 55, so that the squeezing block 510 can The liquid absorbed in the cleaning sponge 55 is squeezed out to facilitate the subsequent absorption operation, and when the U-shaped rod 57 moves upward in the moving frame 53, the hinge seat 58 pulls the transmission rod 62, so that the transmission rod 62 rotates at the hinge, so that the transmission rod 62 pulls the slide plate 61 to approach the U-shaped rod 57, and drives the arc block 69 to move. When the arc block 69 moves to contact with the push rod 68, the push rod 68 is squeezed and moves upward, driving the top plate 66 to move upward, so that the sleeve rod 64 drives the transmission spring 65 to deform, so that the transmission spring 65 gives the sleeve rod 64 a downward pulling force, and When the top plate 66 moves upward, the knocking rod 67 will move upward and away from the cleaning sponge 55. When the slide plate 61 moves to the arc block 69 and does not contact the bottom of the push rod 68, the push rod 68 is not subjected to the squeezing force, and the transmission spring 65 gives a pulling force to the sleeve rod 64, which will cause the sleeve rod 64 to move downward, so that the top plate 66 drives multiple groups of knocking rods 67 to move downward to knock on the cleaning sponge 55, and the granular impurities attached to the cleaning sponge 55 can be knocked off. Then, when the multiple groups of arc blocks 69 move on the push rod 68, the knocking rod 67 will knock back and forth on the outer wall of the cleaning sponge 55.

[0038] When the two groups of push plates 415 approach each other, the connecting rod 51 will squeeze the movable rod 52, so that the movable rod 52 squeezes the connecting rod 54 to move upward, and the movable frame 53 drives the cleaning sponge 55 to move upward back to its original position for the next adsorption operation. When the movable frame 53 moves upward, it can drive the U-shaped rod 57 away from the stopper 56, so that the U-shaped rod 57 is not subjected to the squeezing force, and the connecting spring 59 gives a pulling force to the hinge seat 58, which will cause the hinge seat 58 to move downward. When the U-shaped rod 57 moves downward, it drives the squeezing block 510 to move downward and return to its original position for the next squeezing operation. When the hinge seat 58 moves downward, it will squeeze the transmission rod 62 to reset the slide plate 61.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A VEMS-based rail transit vehicle wheel profile detection device, comprising a mounting seat (1), characterized in that: A detection device (2) is fixed on the inner side of the mounting seat (1), a shooting component (3) is arranged on the detection device (2), a protection component (4) for protecting the detection device (2) is arranged on the mounting seat (1), a cleaning component (5) for conveniently cleaning water stains on the shooting component (3) is arranged on the detection device (2), and a striking component (6) is arranged on the cleaning component (5); The protection assembly (4) comprises an electric push rod (41), a connecting block (42), a fixed block (43), a rotating shaft (44), a protective cover (45), a rotating block (46), an extrusion rod (47), a return spring (48), a transmission plate (49), a rotating rod (410), a swing plate (411), a disc (412), a hinged rod (413), an arc block (414), a push plate (415) and a lever (416), wherein the electric push rod (41) is fixed to the inner side of the mounting seat (1), a fixed block (43) is fixed to the inner side of the mounting seat (1), a rotating shaft (44) runs through the fixed block (43), and the rotating shaft (44) A protective cover (45) is fixed to the outer wall of the mounting seat (1), a rotating block (46) is fixed to the end point of the rotating shaft (44), a connecting block (42) is fixed to the top of the electric push rod (41), an extrusion rod (47) is fixed to the side wall of the connecting block (42), and the extrusion rod (47) passes through the through hole of the rotating block (46), a transmission plate (49) is slidably installed on the inner side of the mounting seat (1), a reset spring (48) is fixed to the bottom of the transmission plate (49), and the bottom of the reset spring (48) is fixed to the inner side of the mounting seat (1), and an arc block (414) is fixed to the side of the transmission plate (49) away from the reset spring (48).

2. The VEMS-based rail transit vehicle wheel profile detection device according to claim 1, characterized in that: A rotating rod (410) is rotatably mounted on the inner side of the mounting seat (1), a disc (412) is fixed to the end point of the rotating rod (410), a hinged rod (413) is hinged at the bottom of the transmission plate (49), and one end of the hinged rod (413) away from the transmission plate (49) is hinged on the disc (412).

3. The VEMS-based rail transit vehicle wheel profile detection device according to claim 2, characterized in that: A swing plate (411) is fixed to the outer wall of the rotating rod (410), a push plate (415) is slidably mounted on the inner side of the mounting seat (1), a shifting rod (416) is fixed to the side wall of the swing plate (411), and the outer wall of the shifting rod (416) is in contact with the inner wall of the side wall groove of the push plate (415).

4. The VEMS-based rail transit vehicle wheel profile detection device according to claim 3, characterized in that: The cleaning assembly (5) comprises a connecting rod (51), a movable rod (52), a movable frame (53), a connecting rod (54), a cleaning sponge (55), a stopper (56), a U-shaped rod (57), an extrusion block (510), a hinge seat (58) and a connecting spring (59); the connecting rod (51) is fixed to the side wall of the push plate (415); the side wall of the detection device (2) is slidably mounted with a movable frame (53); the bottom of the movable frame (53) is fixed with a connecting rod (54); the bottom of the connecting rod (54) is hinged with a movable rod (52); one end of the movable rod (52) away from the connecting rod (54) is hinged to the end point of the connecting rod (51); and the inner side of the movable frame (53) is fixed with a cleaning sponge (55).

5. The VEMS-based rail transit vehicle wheel profile detection device according to claim 4, characterized in that: A U-shaped rod (57) passes through the movable frame (53), a hinge seat (58) is fixed at one end of the U-shaped rod (57), an extrusion block (510) is fixed at the other end of the U-shaped rod (57), a connecting spring (59) is fixed at the bottom of the hinge seat (58), the bottom of the connecting spring (59) is fixed to the top of the movable frame (53), and a stopper (56) is fixed to the side wall of the detection device (2).

6. The VEMS-based rail transit vehicle wheel profile detection device according to claim 5, characterized in that: The striking assembly (6) comprises a slide plate (61), a transmission rod (62), a sleeve (63), a sleeve rod (64), a transmission spring (65), a top plate (66), a knocking rod (67), an arc surface block (69) and a pushing rod (68); the slide plate (61) is slidably mounted on the top of the moving frame (53); the transmission rod (62) is hinged on the hinge seat (58); one end of the transmission rod (62) away from the hinge seat (58) is hinged on the slide plate (61); and a plurality of groups of arc surface blocks (69) in a linear array are fixed on the top of the slide plate (61).

7. The VEMS-based rail transit vehicle wheel profile detection device according to claim 6, characterized in that: A sleeve (63) is fixed on the top of the movable frame (53), a sleeve rod (64) is slidably mounted on the inner wall of the sleeve rod (63), a top plate (66) is fixed on the top of the sleeve rod (64), a plurality of groups of knocking rods (67) in a linear array are fixed on the bottom of the top plate (66), and a push rod (68) is fixed on the bottom of the top plate (66).

8. The VEMS-based rail transit vehicle wheel profile detection device according to claim 7, characterized in that: A transmission spring (65) is fixed to the bottom of the sleeve rod (64), and the bottom of the transmission spring (65) is fixed to the inner wall of the sleeve (63).

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