Railway vehicle wheel set automatic measuring equipment

Abstract

The utility model discloses an automatic measuring device for a railway vehicle wheel set, belongs to the technical field of vehicle wheel measurement, and aims to solve the problem that the wheel set needs to be transferred frequently although measurement operation can be carried out due to the fact that detection of wheels in the wheel set and detection of a brake disc are carried out separately. Comprising two fixing plates installed in a portal frame, wheel measuring structures and brake disc measuring structures for measuring the railway vehicle wheel sets are installed at the bottom ends of the two fixing plates, and the wheel measuring structures and the brake disc measuring structures for measuring the railway vehicle wheel sets are integrated at the bottom ends of the fixing plates. Therefore, when the wheels in the wheel set are measured, the brake disc can be detected synchronously, the wheel set does not need to be transferred again, the detection operation is carried out in the same platform, the one-to-one correspondence between the wheel data and the brake disc data can be ensured, and the situation that the data are not corresponding is avoided.

Description

Technical Field

[0001] The utility model discloses an automatic measuring device for railway vehicle wheelsets, which belongs to the technical field of wheelset measurement, and in particular relates to the technical field of automatic measuring of railway vehicle wheelsets. Background Art

[0002] When inspecting wheelsets, existing factory technologies generally have two modes of measurement: one is to manually use multiple measuring tools to measure the dimensions of each part of the wheelset. Since manual measurement requires many parameters and the need to replace different measuring tools, the work efficiency is very low and is prone to human errors. This is not suitable for the high precision and high efficiency requirements of railway vehicle wheelset workshops. The other measurement method uses optical measurement to obtain the wheelset size parameters by laser scanning the wheelset surface. This method has high requirements for the workshop environment and wheelset surface, and is easily affected by the environment and debris attached to the wheelset surface, resulting in large measurement errors and low optical accuracy. In actual production, the error is large and cannot meet production needs. Most importantly, the wheels in the wheelset and the brake disc are currently inspected separately. Although measurement operations can be performed, the wheelset needs to be frequently transferred, which reduces the inspection efficiency of the wheelset. In order to solve the above problems, we propose an automatic measurement device for railway vehicle wheelsets. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide an automatic measuring device for railway vehicle wheelsets, thereby solving the problem that the detection of wheels in the wheelset and the detection of brake discs are carried out separately. Although the measurement operation can be carried out, the wheelset needs to be frequently transported.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A railway vehicle wheelset automatic measuring device comprises two fixed plates installed inside a gantry, wherein a wheel measuring structure and a brake disc measuring structure for measuring the railway vehicle wheelset are installed at the bottom ends of the two fixed plates, and the wheel measuring structures and brake disc measuring structures at the bottom ends of the two fixed plates are symmetrically distributed.

[0006] As a preferred technical solution of the present utility model, the wheel measurement structure includes an inner distance measurement guide rail and an inner distance measurement cylinder installed at the bottom end of the fixed plate, an inner distance measurement mounting seat is slidably installed on the inner distance measurement guide rail, a bracket is installed at the bottom end of the inner distance measurement mounting seat, an inner distance measurement wheel for measuring the rim is installed on the side of the bracket, and a fixed block for installing the inner distance measurement sensor is installed at the bottom end of the inner distance measurement mounting seat.

[0007] As an optimal technical solution of the present invention, the bracket above the inner distance measuring wheel is installed with a wheel diameter measuring guide rail, and a wheel diameter measuring sliding seat is slidably installed on the wheel diameter measuring guide rail. An L-shaped connecting plate provided below the inner distance measuring mounting seat is installed on the side of the wheel diameter measuring sliding seat. A wheel diameter measuring cylinder is installed on the inner distance measuring mounting seat. The output end of the wheel diameter measuring cylinder passes through and extends to the bottom of the inner distance measuring mounting seat and is connected to the L-shaped connecting plate. A support rod is installed on the surface of the L-shaped connecting plate. The top end of the support rod passes through and extends to the inner distance measuring mounting seat. A placing plate is connected to the top of the placing plate, and a rim height measuring cylinder is installed on the top of the placing plate. The bottom end of the rim height measuring cylinder passes through and extends to the bottom of the inner distance measuring mounting seat and is connected to a push rod. A rim height measuring guide rail is installed on the bottom end of the placing plate, and the bottom end of the rim height measuring guide rail passes through and extends to the bottom of the L-shaped connecting plate and is connected to the rim height measuring anvil. A convex plate is installed on the front side of the L-shaped connecting plate, and a rim height measuring pad is installed on the L-shaped connecting plate on the side of the convex plate. A rim height measuring sensor is installed on the side of the placing plate corresponding to the position above the rim height measuring pad.

[0008] The wheel hub plate is fixed with a U-shaped base, and a wheel hub plate is fixed with a U-shaped base, and a wheel hub plate is fixed with a U-shaped base.

[0009] As an optimal technical solution of the present invention, a downwardly extending connecting plate is installed on the rear side of the bracket, and a rim thickness measuring guide rail is installed on the side of the connecting plate below the bracket, a rim thickness measuring slide is slidably installed on the rim thickness measuring guide rail, a rim thickness measuring anvil is installed on the surface of the rim thickness measuring slide on one side corresponding to the rim, and a rim thickness measuring pad is installed on the other side of the rim thickness measuring slide surface, a rim thickness measuring sensor is installed at the position corresponding to the rim thickness measuring pad on the side of the bracket, the top of the rim thickness measuring pad and the top of the rim thickness measuring anvil are arranged in the same horizontal plane, a clamping plate is installed on the surface of the rim thickness measuring slide between the rim thickness measuring pad and the rim thickness measuring anvil, and a rim thickness measuring cylinder connected to the clamping plate is installed on the connecting plate.

[0010] As an optimal technical solution of the present invention, the brake disc measuring structure includes a positioning plate installed at the bottom end of the fixed plate on one side of the inner distance measuring mounting seat, a rim width measuring guide rail is installed at the bottom end of the side of the positioning plate, a rim width measuring sliding seat is slidably installed on the rim width measuring guide rail, a rim width measuring anvil is installed on the bottom end side of the rim width measuring sliding seat, a rim width pad is installed on the top side of the rim width measuring sliding seat, a rim width measuring sensor is installed on the side of the positioning plate above the rim width measuring guide rail, an inner distance measuring pad is installed at the position of the inner distance measuring sensor on the side of the positioning plate, and a rim width measuring cylinder that drives the rim width measuring sliding seat to move is installed on the side of the inner distance measuring mounting seat.

[0011] Compared with the prior art, the beneficial effect of the present invention is that the wheel measurement structure and the brake disc measurement structure for measuring the wheelset of a railway vehicle are integrated at the bottom end of the fixed plate, so that when measuring the wheels in the wheelset, the brake disc can be detected synchronously, thereby eliminating the need for re-transferring the wheelset, and performing detection operations on the same platform can also ensure that the wheel data and the brake disc data correspond one-to-one, thereby avoiding the occurrence of data mismatches, and also improving the data detection efficiency of the wheelset. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the measurement structure of the utility model;

[0013] Figure 2 This is a first stereoscopic schematic diagram of the measurement structure of the utility model;

[0014] Figure 3 This is a second three-dimensional schematic diagram of the measurement structure of the utility model;

[0015] Figure 4 This is a third stereoscopic schematic diagram of the measurement structure of the present utility model;

[0016] Figure 5This is a fourth three-dimensional schematic diagram of the measurement structure of the present utility model;

[0017] Figure 6 This is a schematic diagram of the installation structure of the measurement structure of the utility model;

[0018] 1-Fixed plate; 2-Inner distance measuring guide rail; 3-Inner distance measuring cylinder; 4-Inner distance measuring sensor; 5-Inner distance measuring wheel; 6-Wheel diameter measuring wheel; 7-Pull rod displacement sensor; 8-Wheel diameter measuring cylinder; 9-Rim height measuring sensor; 10-Rim height measuring cylinder; 11-Brake disc measuring cylinder; 12-Brake disc measuring sensor; 13-Rim width measuring cylinder; 14-Rim width measuring anvil; 15-Rim width measuring sensor; 16-Rim thickness measuring cylinder; 17-Rim thickness measuring anvil; 18-Rim thickness measuring cylinder Sensor; 19-Rim thickness measuring cylinder; 20-Rim thickness measuring anvil; 21-Rim thickness measuring sensor; 22-Rim thickness measuring guide rail; 23-Wheel diameter measuring guide rail; 24-Rim height measuring guide rail; 25-Brake disc measuring guide rail; 26-Rim thickness measuring guide rail; 27-Rim width measuring guide rail; 28-Inner distance measuring mounting seat; 29-Fixed block; 30-Bracket; 31-Connecting plate; 32-Rim thickness measuring slide; 33-Rim thickness measuring pad; 34-Cardboard; 35-Wheel diameter measuring slide; 36- L-shaped connecting plate; 37-support rod; 38-placement plate; 39-thrust rod; 40-rim height measuring anvil; 41-convex plate; 42-rim height measuring pad; 43-rim thickness measuring sliding seat; 44-T-shaped mounting plate; 45-U-shaped fixing seat; 46-L-shaped mounting plate; 47-rim thickness measuring pad; 48-positioning plate; 49-rim width measuring sliding seat; 50-rim width pad; 51-inner distance measuring pad; 52-guide plate; 53-brake disc measuring sliding seat; 54-n-shaped mounting seat. DETAILED DESCRIPTION

[0019] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-6 , the utility model provides a technical solution:

[0021] A railway vehicle wheelset automatic measuring device comprises two fixed plates 1 installed inside a gantry, a wheel measuring structure and a brake disc measuring structure for measuring the railway vehicle wheelset are installed at the bottom ends of the two fixed plates 1, and the wheel measuring structure and the brake disc measuring structure at the bottom ends of the two fixed plates 1 are symmetrically distributed, the wheel measuring structure comprises an inner distance measuring guide rail 2 and an inner distance measuring cylinder 3 installed at the bottom ends of the fixed plates 1, an inner distance measuring mounting seat 28 is slidably installed on the inner distance measuring guide rail 2, a bracket 30 is installed at the bottom end of the inner distance measuring mounting seat 28, and an inner distance measuring wheel 5 for measuring the wheel rim is installed on the side of the bracket 30; A fixing block 29 for mounting the inner distance sensor 4 is mounted at the bottom end of the mounting base 28. The inner distance cylinder 3 extends and retracts, driving the inner distance measuring mounting base 28 to change its position; thereby driving the structure mounted on the distance measuring mounting base 28 to move, thereby causing the inner distance measuring wheel 5 to contact the wheel. At this time, the inner distance measuring sensor 4 contacts the inner distance measuring pad 51. At this time, the wheel is driven by external power to rotate. Since the inner distance measuring wheel 5 contacts the inner wall of the wheel, when the interior of the vehicle is uneven, the inner distance measuring wheel 5 is pushed, causing the measurement data of the inner distance measuring sensor 4 to change, thereby measuring the flatness of the inner side of the wheel.

[0022] A wheel diameter measuring guide rail 23 is installed on the bracket 30 above the inner distance measuring wheel 5, and a wheel diameter measuring sliding seat 35 is slidably installed on the wheel diameter measuring guide rail 23. An L-shaped connecting plate 36 is installed on the side of the wheel diameter measuring sliding seat 35 and is located below the inner distance measuring mounting seat 28. A wheel diameter measuring cylinder 8 is installed on the inner distance measuring mounting seat 28. The output end of the wheel diameter measuring cylinder 8 passes through and extends to the bottom of the inner distance measuring mounting seat 28 and is connected to the L-shaped connecting plate 36. The surface of the L-shaped connecting plate 36 is mounted. There is a support rod 37, the top of the support rod 37 passes through and extends to the top of the inner distance measurement mounting seat 28 and is connected to a placement plate 38, the top of the placement plate 38 is installed with a rim height measuring cylinder 10, the bottom end of the rim height measuring cylinder 10 passes through and extends to the bottom of the inner distance measurement mounting seat 28 and is connected to a push rod 39, the bottom end of the placement plate 38 is installed with a rim height measuring guide rail 24, the bottom end of the rim height measuring guide rail 24 passes through and extends to the bottom of the L-shaped connecting plate 36 and is connected to a rim height measuring anvil 40; the wheel diameter measuring cylinder The cylinder 8 drives the L-shaped connecting plate 36 to move up and down, thereby making the wheel diameter measuring wheel 6 contact with the wheel tread, marking the data of the pull rod displacement sensor 7 at this time, and then driving the wheel to rotate by external power. When the wheel tread is uneven, the wheel diameter measuring wheel 6 will be lifted or lowered, thereby driving the measurement data of the pull rod displacement sensor 7 to change, thereby detecting the uniformity of the wheel tread; the rim height measuring cylinder 10 works, thereby making the rim height measuring anvil 40 contact with the wheel rim, and the rim height measuring sensor 9 is in contact with the rim height measuring pad 42 at this time, marking the data of the rim height measuring sensor 9, and then driving the wheel to rotate a certain angle by external power, measuring again, marking the sensor value, when the surface of the wheel rim is uneven, the rim height measuring anvil 40 will be lifted upward, causing the measurement data of the rim height measuring sensor 9 to change, thereby detecting the uniformity of the outermost side of the wheel rim;

[0023] A convex plate 41 is installed on the front side of the L-shaped connecting plate 36, a rim height measuring pad 42 is installed on the L-shaped connecting plate 36 on the side of the convex plate 41, and a rim height measuring sensor 9 is installed on the side of the placement plate 38 at a position corresponding to the position above the rim height measuring pad 42;

[0024] A rim thickness measuring guide rail 22 is installed at the bottom end of the convex plate 41, and a rim thickness measuring sliding seat 43 is slidably installed at the bottom end of the rim thickness measuring guide rail 22. A T-shaped mounting plate 44 is installed at the bottom end of the rim thickness measuring sliding seat 43. A U-shaped fixing seat 45 is installed at the bottom end of the L-shaped connecting plate 36 on the side of the T-shaped mounting plate 44. A wheel diameter measuring wheel 6 is installed inside the bottom end of the U-shaped fixing seat 45. A rim thickness measuring anvil 20 is installed at the bottom end of the T-shaped mounting plate 44 on the side of the wheel diameter measuring wheel 6. A rim thickness measuring cylinder 19 for driving the rim thickness measuring sliding seat 43 to move is installed at the bottom end of the convex plate 41. A rim thickness measuring pad 47 is installed on the side of the T-shaped mounting plate 44. The end of the rim thickness measuring anvil 20 and the end of the rim thickness measuring pad 47 are arranged in the same horizontal plane. A rim thickness measuring sensor 21 is installed at the position of the rim thickness pad 47 on the side of the L-shaped connecting plate 36. The operation of the rim thickness measuring cylinder 19 and the inner distance measuring cylinder 3 is controlled so that the rim thickness measuring anvil 20 contacts the inner side of the rim and the inner distance measuring wheel 5 contacts the wheel. At this time, the rim thickness measuring sensor 21 contacts the rim thickness pad 47, and the inner distance measuring sensor 4 contacts the inner distance measuring pad 51. The measurement data of the rim thickness measuring sensor 21 and the inner distance measuring sensor 4 are recorded. Then, after the wheel is driven to rotate a certain angle by external power, it is measured again and the measurement data of the rim thickness measuring sensor 21 and the inner distance measuring sensor 4 are recorded. When the wheel rim becomes uneven, the rim thickness measuring anvil 20 and the inner distance measuring wheel 5 are pushed outward, thereby driving the rim thickness pad 47 and the inner distance measuring sensor 4 to move, thereby changing the measurement data of the rim thickness measuring sensor 21 and the inner distance measuring sensor 4, thereby realizing the detection operation of the uniformity of the rim thickness.

[0025] A pull-rod displacement sensor 7 is mounted on the inner distance measurement mounting seat 28 on the side of the wheel diameter measuring cylinder 8, and the bottom end of the pull-rod displacement sensor 7 is fixed to the surface of the L-shaped connecting plate 36;

[0026] A downwardly extending connecting plate 31 is installed on the rear side of the bracket 30, a rim thickness measuring guide rail 26 is installed on the side of the connecting plate 31 below the bracket 30, a rim thickness measuring slide 32 is slidably installed on the rim thickness measuring guide rail 26, a rim thickness measuring anvil 17 is installed on the surface of the rim thickness measuring slide 32 on one side corresponding to the rim, a rim thickness measuring pad 33 is installed on the other side of the surface of the rim thickness measuring slide 32, a rim thickness measuring sensor 18 is installed at the position of the rim thickness measuring pad 33 on the side of the bracket 30, the top of the rim thickness measuring pad 33 and the top of the rim thickness measuring anvil 17 are arranged in the same horizontal plane, a clamping plate 34 is installed on the surface of the rim thickness measuring slide 32 between the rim thickness measuring pad 33 and the rim thickness measuring anvil 17, and a rim thickness measuring pad connected to the clamping plate 34 is installed on the connecting plate 31. Cylinder 16; the rim thickness measuring cylinder 16 works to drive the rim thickness measuring anvil 17 to contact the rim of the wheel. At this time, the rim thickness measuring sensor 18 contacts the rim thickness measuring pad 33, and the measurement data of the rim thickness measuring sensor 18 at this time is recorded. The wheel diameter measuring cylinder 8 works to drive the L-shaped connecting plate 36 to move up and down, thereby making the wheel diameter measuring wheel 6 contact the wheel tread, marking the data of the pull rod displacement sensor 7 at this time, and then the wheel is rotated by external power. When the position of the rim and the tread is uneven, the rim thickness measuring anvil 17 and the wheel diameter measuring wheel 6 will be pushed, thereby causing the rim thickness measuring pad 33 to move, so that the measurement data of the rim thickness measuring sensor 18 and the pull rod displacement sensor 7 change, thereby performing the rim thickness measurement operation;

[0027] The brake disc measuring structure includes a positioning plate 48 installed at the bottom end of the fixed plate 1 on one side of the inner distance measuring mounting seat 28, a rim width measuring guide rail 27 installed at the bottom end of the side of the positioning plate 48, a rim width measuring sliding seat 49 slidably installed on the rim width measuring guide rail 27, a rim width measuring anvil 14 installed on the bottom end side of the rim width measuring sliding seat 49, a rim width pad 50 installed on the top side of the rim width measuring sliding seat 49, a rim width measuring sensor 15 installed on the side of the positioning plate 48 above the rim width measuring guide rail 27, an inner distance measuring pad 51 installed at the position of the inner distance measuring sensor 4 on the side of the positioning plate 48, and a rim width measuring device that drives the rim width measuring device 15 is installed on the side of the inner distance measuring mounting seat 28. The rim width measuring cylinder 13 moved by the sliding seat 49, and the rim width measuring cylinder 13 and the inner distance measuring cylinder 3 work, so that the rim width measuring anvil 14 contacts the wheel rim, and the inner distance measuring wheel 5 contacts the wheel. At this time, the rim width measuring sensor 15 contacts the rim width pad 50, and the inner distance measuring sensor 4 contacts the inner distance measuring pad 51. Then, the wheel is driven to rotate by external power. When a bulge or depression appears at the wheel rim width position, the rim width measuring anvil 14 and the inner distance measuring sensor 4 will move, thereby driving the rim width pad 50 to move, thereby causing the measurement data of the rim width measuring sensor 15 and the inner distance measuring sensor 4 to change, thereby performing a uniform rim width detection operation;

[0028] A guide plate 52 is installed at the bottom end of the fixed plate 1 on the other side of the inner distance measuring mounting seat 28, and a brake disc measuring guide rail 25 is installed on the side of the guide plate 52. A brake disc measuring sliding seat 53 is slidably installed on the brake disc measuring guide rail 25, and a brake disc measuring cylinder 11 connected to the side of the brake disc measuring sliding seat 53 is installed on the guide plate 52. An n-type mounting seat 54 is installed at the bottom end of the brake disc measuring sliding seat 53, and brake disc measuring sensors 12 are installed on both sides of the n-type mounting seat 54. First, ventilation is performed to the interior of the brake disc measuring sensor 12, so that the brake disc measuring sensor 12 contacts both sides of the brake disc, and the recording system is recorded. The brake disc measuring sensor 12 data is obtained by controlling the operation of the brake disc measuring cylinder 11, so that the n-type mounting seat 54 drives the brake disc measuring sensor 12 to descend to the brake disc wear area, and then ventilation is performed to the interior of the brake disc measuring sensor 12. When the wheel is rotated by external power, the uneven wear area will cause the brake disc measuring sensor 12 to be pushed out or retracted, thereby generating data changes in the brake disc measuring sensor 12. The brake disc measuring sensor 12 data is recorded and compared with the data before the brake disc measuring sensor 12 descends to obtain the amount of brake disc wear, thereby measuring the brake disc wear.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic measuring device for railway vehicle wheelsets, comprising two fixing plates (1) mounted inside a gantry, characterized in that: A wheel measuring structure and a brake disc measuring structure for measuring the railway vehicle wheelset are installed at the bottom ends of the two fixed plates (1), and the wheel measuring structure and the brake disc measuring structure at the bottom ends of the two fixed plates (1) are symmetrically distributed; The wheel measurement structure comprises an inner distance measuring guide rail (2) and an inner distance measuring cylinder (3) mounted on the bottom end of a fixed plate (1); an inner distance measuring mounting seat (28) slidably mounted on the inner distance measuring guide rail (2); a bracket (30) mounted on the bottom end of the inner distance measuring mounting seat (28); an inner distance measuring wheel (5) for measuring the wheel rim mounted on the side of the bracket (30); and a fixing block (29) for mounting the inner distance measuring sensor (4) mounted on the bottom end of the inner distance measuring mounting seat (28); The brake disc measuring structure comprises a positioning plate (48) mounted on the bottom end of a fixed plate (1) on one side of an inner distance measuring mounting seat (28), a rim width measuring guide rail (27) mounted on the bottom end of the side of the positioning plate (48), a rim width measuring sliding seat (49) slidably mounted on the rim width measuring guide rail (27), a rim width measuring anvil (14) mounted on the side of the bottom end of the rim width measuring sliding seat (49), a rim width pad (50) mounted on the side of the top end of the rim width measuring sliding seat (49), a rim width measuring sensor (15) mounted on the side of the positioning plate (48) above the rim width measuring guide rail (27), an inner distance measuring pad (51) mounted on the side of the positioning plate (48) corresponding to the position of the inner distance measuring sensor (4), and a rim width measuring cylinder (13) for driving the rim width measuring sliding seat (49) to move is mounted on the side of the inner distance measuring mounting seat (28).

2. The railway vehicle wheelset automatic measuring device according to claim 1, characterized in that: A wheel diameter measuring guide rail (23) is installed on the bracket (30) above the inner distance measuring wheel (5), a wheel diameter measuring sliding seat (35) is slidably installed on the wheel diameter measuring guide rail (23), an L-shaped connecting plate (36) provided below the inner distance measuring mounting seat (28) is installed on the side of the wheel diameter measuring sliding seat (35), a wheel diameter measuring cylinder (8) is installed on the inner distance measuring mounting seat (28), an output end of the wheel diameter measuring cylinder (8) passes through and extends to the bottom of the inner distance measuring mounting seat (28) and is connected to the L-shaped connecting plate (36), a support rod (37) is installed on the surface of the L-shaped connecting plate (36), a top end of the support rod (37) passes through and extends to the top of the inner distance measuring mounting seat (28) and is connected to a placement plate (38), A rim height measuring cylinder (10) is installed at the top of the placement plate (38), the bottom end of the rim height measuring cylinder (10) passes through and extends to the bottom of the inner distance measuring mounting seat (28) and is connected to a push rod (39), a rim height measuring guide rail (24) is installed at the bottom end of the placement plate (38), the bottom end of the rim height measuring guide rail (24) passes through and extends to the bottom of the L-shaped connecting plate (36) and is connected to a rim height measuring anvil (40), a convex plate (41) is installed on the front side of the L-shaped connecting plate (36), a rim height measuring pad (42) is installed on the L-shaped connecting plate (36) on the side of the convex plate (41), and a rim height measuring sensor (9) is installed on the side of the placement plate (38) at a position above the rim height measuring pad (42).

3. The railway vehicle wheelset automatic measuring device according to claim 2, characterized in that: The bottom end of the convex plate (41) is installed with a rim thickness measuring guide rail (22), the bottom end of the rim thickness measuring guide rail (22) is slidably installed with a rim thickness measuring sliding seat (43), the bottom end of the rim thickness measuring sliding seat (43) is installed with a T-shaped mounting plate (44), the bottom end of the L-shaped connecting plate (36) on the side of the T-shaped mounting plate (44) is installed with a U-shaped fixing seat (45), the bottom end of the U-shaped fixing seat (45) is installed with a wheel diameter measuring wheel (6), the bottom end of the T-shaped mounting plate (44) on the side of the wheel diameter measuring wheel (6) is installed with a rim thickness measuring anvil (20), the bottom end of the convex plate (41) is installed with a driving wheel The rim thickness measuring sliding seat (43) moves the rim thickness measuring cylinder (19), the side of the T-shaped mounting plate (44) is installed with a rim thickness measuring pad (47), the end of the rim thickness measuring anvil (20) and the end of the rim thickness measuring pad (47) are arranged in the same horizontal plane, the side of the L-shaped connecting plate (36) is installed with a rim thickness measuring sensor (21) at a position corresponding to the rim thickness pad (47), and a pull rod type displacement sensor (7) is installed on the inner distance measuring mounting seat (28) on the side of the wheel diameter measuring cylinder (8), and the bottom end of the pull rod type displacement sensor (7) is fixed to the surface of the L-shaped connecting plate (36).

4. The railway vehicle wheelset automatic measuring device according to claim 2, characterized in that: A connecting plate (31) extending downward is installed on the rear side of the bracket (30), a rim thickness measuring guide rail (26) is installed on the side of the connecting plate (31) below the bracket (30), a rim thickness measuring slide (32) is slidably installed on the rim thickness measuring guide rail (26), a rim thickness measuring anvil (17) is installed on the surface of the rim thickness measuring slide (32) corresponding to the rim on one side of the surface, and a rim thickness measuring pad (33) is installed on the other side of the surface of the rim thickness measuring slide (32). A rim thickness measuring sensor (18) is installed on the side of the bracket (30) at a position corresponding to the rim thickness measuring pad (33), the top of the rim thickness measuring pad (33) and the top of the rim thickness measuring anvil (17) are arranged on the same horizontal plane, a clamping plate (34) is installed on the surface of the rim thickness measuring slide (32) between the rim thickness measuring pad (33) and the rim thickness measuring anvil (17), and a rim thickness measuring cylinder (16) connected to the clamping plate (34) is installed on the connecting plate (31).

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