Wheel rotation monitoring device of ultrasonic wheel flaw detector

Abstract

The invention relates to wheel ultrasonic flaw detector equipment, in particular to a wheel rotation monitoring device of a wheel ultrasonic flaw detector, which comprises a workbench (1), a carrier roller (2) is arranged on the workbench (1); a monitoring assembly is arranged between every two adjacent carrier rollers (2). The monitoring assembly comprises a main shaft structure; the main shaft structure is respectively connected with a roller (3) and an encoder (4); wheels (201) are arranged on the carrier rollers (2); the wheels (201) abut against the rolling wheels (3). The monitoring assembly is installed at the lower position of the center of the two carrier rollers of the workbench. The carrier roller rotates and drives the wheel to rotate through friction force for flaw detection, the wheel drives the roller to rotate through friction force, the roller drives the main shaft structure to rotate, and the main shaft structure drives the encoder to rotate; and comparing the numerical values of the encoder of the main shaft structure and the encoder of the carrier roller, and generating a following error alarm when the numerical value deviation exceeds a certain range.

Description

Technical Field

[0001] The invention relates to wheel ultrasonic flaw detector equipment, in particular to a wheel rotation monitoring device of a wheel ultrasonic flaw detector. Background Art

[0002] Wheels are key components in railway transportation, and their quality determines the stability and safety of train operation. After processing, wheels must undergo a series of quality tests before they can be put into use, including static balance, hardness, ultrasonic testing, magnetic testing, surface strengthening, appearance and size inspection, etc. Ultrasonic testing, as a means of inspecting internal defects of wheels, is an important part of ensuring wheel quality. At present, the inspection process of wheels with through-type wheel ultrasonic flaw detectors is roughly as follows: the wheel is turned from horizontal to vertical through a flip machine, and enters the waiting position of the ultrasonic flaw detector through the track. The large frame of the ultrasonic flaw detector descends to clamp the wheel and drives the wheel to roll to the inspection position. The radial frame of the ultrasonic flaw detector extends into place and descends to clamp the wheel. The large frame of the ultrasonic flaw detector rises and retreats to the waiting position. The ultrasonic flaw detector workbench rises, and the wheel is lifted to a position away from the track by the spinning mechanism on the workbench. Each flaw detection probe is fitted at each flaw detection position of the wheel, and the hydraulic motor drives the two rollers on the spinning mechanism to rotate through the sprocket and chain. The rollers drive the wheel to rotate through friction to perform flaw detection. An encoder is installed on the roller shaft of one roller in the spinning mechanism. Since the two rollers of the spinning mechanism are driven simultaneously by a hydraulic motor through a chain, the encoder can only monitor whether the spinning mechanism is rotating, but cannot monitor whether the wheel is rotating on the spinning mechanism. As a result, when the wheel slips or stops on the spinning mechanism, the ultrasonic flaw detector continues to detect flaws without an alarm, which can easily cause missed detection accidents where wheel defects are not fully detected, and product quality cannot be guaranteed.

[0003] After searching, the applicant found that the Chinese patent document with publication number 206177898U disclosed a train wheel ultrasonic phased array automatic flaw detection device on May 17, 2017, which includes a bracket, a wheel rotation drive platform, a probe lifting mechanism, a probe horizontal adjustment mechanism, a phased array probe, a water tank and an encoder; the wheel rotation drive platform is horizontally arranged in the water tank, the wheel to be inspected is coaxially arranged on the wheel rotation drive platform, and the wheel rotation drive platform is driven to rotate by a motor reducer; a pressure plate device is arranged on the wheel rotation drive platform for clamping the wheel to be inspected; the phased array probe is connected to the probe lifting mechanism and the probe horizontal adjustment mechanism, so that the phased array probe can be adjusted laterally and longitudinally to fit the inspected surface of the wheel to be inspected; this device also cannot solve the above technical problems.

[0004] Therefore, in order to improve or solve at least one of the above problems, it is necessary to provide a wheel rotation monitoring device of a wheel ultrasonic flaw detector that can monitor in real time whether the wheel is slipping and stalling during wheel ultrasonic flaw detection. Summary of the invention

[0005] The object of the present invention is to provide a wheel rotation monitoring device for a wheel ultrasonic flaw detector which can monitor in real time whether a wheel is slipping or stalling during wheel ultrasonic flaw detection.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a wheel rotation monitoring device of a wheel ultrasonic flaw detector, comprising a workbench; a roller is arranged on the workbench; a monitoring component is arranged between adjacent rollers; the monitoring component comprises a main shaft structure; a roller and an encoder are respectively connected to the main shaft structure; a wheel is arranged on the roller; and the wheel abuts against the roller.

[0007] The spindle structure comprises a spindle; a spindle bracket is arranged on the spindle; one end of the spindle is connected to the roller; and the other end of the spindle is connected to the encoder.

[0008] Bearings are respectively provided at both ends of the spindle bracket; the spindle is arranged in the spindle bracket, and the spindle is connected to the bearings; a first shaft section and a second shaft section are respectively provided at both ends of the spindle; an end cover is provided on the first shaft section, and the first shaft section is connected to a third shaft section; the roller is connected to the third shaft section; an encoder bracket is provided on the spindle bracket; the encoder bracket is connected to the encoder; a coupling is connected between the encoder and the second shaft section.

[0009] A pressure cover is provided at the end of the third shaft section; the pressure cover is pressed against the roller; a sealing ring installation groove is provided at the end of the end cover; a sealing ring is provided in the sealing ring installation groove; and the sealing ring is connected to the first shaft section.

[0010] The monitoring component comprises a left box cover and a right box cover; a guide rail is arranged in the right box cover; a guide rail box is arranged on the spindle support; a slide groove is arranged on the guide rail box; and the guide rail is arranged in the slide groove.

[0011] A spring stopper is provided in the right box cover; a spring mounting hole is provided on the spring stopper; a plug is provided at the bottom of the right box cover; the plug is arranged in the spring mounting hole; a spring is provided in the spring mounting hole; one end of the spring is tightly pressed against the plug, and the other end of the spring is tightly pressed against the guide rail box.

[0012] The left box cover and the right box cover are both provided with mounting grooves and waterproof sealing strip mounting grooves; the end cover is arranged in the mounting groove, and a sealing gasket is connected to the end cover; a waterproof strip is arranged in the waterproof sealing strip mounting groove; the waterproof strip is arranged between the sealing gasket and the left box cover; a waterproof board is connected to the left box cover; the sealing gasket is arranged between the waterproof board and the left box cover.

[0013] An encoder joint is provided at the bottom of the right box cover; the encoder joint is connected to the encoder; an air pipe joint is provided at the bottom of the left box cover; the air pipe joint is communicated with the inside of the left box cover.

[0014] The right box cover is provided with a connecting plate; the connecting plate is connected to a base; the base is connected to a square tube; the workbench includes a crossbeam; the square tube is connected to the crossbeam.

[0015] A first waist-shaped hole is provided on the base; a first bolt is provided on the square tube, and the first bolt is connected to the first waist-shaped hole; a connecting groove is provided on the side of the base; the connecting plate is provided in the connecting groove, and a second waist-shaped hole is provided on the connecting plate; a second bolt is provided in the second waist-shaped hole, and the second bolt is connected to the base; a screw rod is provided on the top of the base; a stopper is provided on the screw rod; and the stopper is connected to the connecting plate.

[0016] The beneficial effects of this application are:

[0017] The monitoring component of the present application is installed at the lower center of the two rollers on the workbench; the two rollers rotate, and the rollers drive the wheels to rotate through friction to perform flaw detection, the wheels drive the rollers to rotate through friction, the rollers drive the main shaft structure to rotate, and the main shaft structure drives the encoder to rotate; the encoder of the main shaft structure is compared with the encoder value of the roller, and a following error alarm is generated when the deviation of the values ​​of the two exceeds a certain range, so as to determine whether the wheel is rotating on the roller, and prevent the ultrasonic flaw detector from continuing to detect flaws without an alarm when the wheel slips or stops on the roller, resulting in missed detection accidents where wheel defects are not fully detected, thereby ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the structure of the wheel rotation monitoring device of the wheel ultrasonic flaw detector.

[0020] Figure 2 This is a schematic diagram of the main shaft structure of the wheel rotation monitoring device of the wheel ultrasonic flaw detector.

[0021] Figure 3 This is a cross-sectional view of the main shaft structure of the wheel rotation monitoring device of the wheel ultrasonic flaw detector.

[0022] Figure 4 This is a schematic diagram of the structure of the monitoring component of the wheel rotation monitoring device of the wheel ultrasonic flaw detector.

[0023] Figure 5 This is an exploded view of the monitoring components of the wheel rotation monitoring device of the wheel ultrasonic flaw detector.

[0024] Figure 6 This is a schematic diagram of the structure of the right box cover of the wheel rotation monitoring device of the wheel ultrasonic flaw detector.

[0025] Figure 7 This is a schematic diagram of the structure of the left box cover of the wheel rotation monitoring device of the wheel ultrasonic flaw detector.

[0026] Figure 8 This is a schematic diagram of the installation status of the connecting plate of the wheel rotation monitoring device of the wheel ultrasonic flaw detector.

[0027] The marks in the above figure are:

[0028] The markings in the figure are:

[0029] 1. Workbench,

[0030] 2. Rollers, 201, wheels,

[0031] 3. Roller,

[0032] 4. Encoder,

[0033] 5. Spindle, 501, spindle bracket, 502, bearing,

[0034] 6. First shaft section, 601. Second shaft section, 602. Third shaft section, 603. End cover, 604. Encoder bracket, 605. Sealing ring, 606. Coupling, 607. Gland, 608. Sealing ring installation groove,

[0035] 7. Left box cover, 701. Right box cover, 702. Guide rail, 703. Guide rail box, 704. Slide slot,

[0036] 8. Spring stopper, 801. Spring mounting hole, 802. Plug, 803. Spring,

[0037] 9. Installation groove, 901. Sealing pad, 902. Waterproof board, 903. Waterproof sealing strip installation groove, 904. Encoder connector, 905. Air pipe connector,

[0038] 10. Connecting plate, 101. Base, 102. Square tube, 103. Crossbeam, 104. First waist-shaped hole, 105. Connecting groove, 106. Second waist-shaped hole, 107. Screw, 108. Stopper. DETAILED DESCRIPTION

[0039] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0040] Figure 1 The wheel rotation monitoring device of the wheel ultrasonic flaw detector shown includes a workbench 1; a roller 2 is provided on the workbench 1; a monitoring component is provided between adjacent rollers 2; the monitoring component includes a main shaft structure; a roller 3 and an encoder 4 are respectively connected to the main shaft structure; a wheel 201 is provided on the roller 2; and the wheel 201 is in contact with the roller 3.

[0041] The monitoring component is installed at the lower center of the two rollers 2 of the workbench 1; the roller 2 rotates, and the roller 2 drives the wheel 201 to rotate through friction to perform flaw detection, the wheel 201 drives the roller 3 to rotate through friction, the roller 3 drives the main shaft structure to rotate, and the main shaft structure drives the encoder 4 to rotate; the encoder 4 of the main shaft structure is compared with the encoder value of the roller 2, and a following error alarm is generated when the deviation of the values ​​of the two exceeds a certain range, so as to judge whether the wheel 201 is rotating on the roller 2, and prevent the ultrasonic flaw detector from continuing to detect flaws without an alarm when the wheel 201 slips or stops on the roller 2, resulting in the occurrence of missed detection accidents where the defects of the wheel 201 are not fully detected, thereby ensuring product quality.

[0042] The spindle structure comprises a spindle 5 ; a spindle bracket 501 is arranged on the spindle 5 ; one end of the spindle 5 is connected to the roller 3 ; and the other end of the spindle 5 is connected to the encoder 4 .

[0043] The spindle bracket 501 is a square bracket; a through hole is provided on the spindle bracket 501; the spindle 5 is installed in the through hole; the roller 3 is fixedly connected to the spindle 5; the rotation of the roller 3 can drive the spindle 5 to rotate in the spindle bracket 501; the rotation of the spindle 5 can drive the encoder 4 to rotate.

[0044] Bearings 502 are respectively provided at both ends of the spindle bracket 501; the spindle 5 is arranged in the spindle bracket 501, and the spindle 5 is connected to the bearing 502; the first shaft section 6 and the second shaft section 601 are respectively provided at both ends of the spindle 5; an end cover 603 is provided on the first shaft section 6, and the first shaft section 6 is connected to the third shaft section 602; the roller 3 is connected to the third shaft section 602; an encoder bracket 604 is provided on the spindle bracket 501; the encoder bracket 604 is connected to the encoder 4; a coupling 606 is connected between the encoder 4 and the second shaft section 601.

[0045] A bearing 502 is fixedly connected in the spindle bracket 501; the bearings 502 are respectively connected to the two ends of the spindle bracket 501; the spindle 5 is installed in the spindle bracket 501, and the two ends of the spindle 5 are respectively connected to the bearings 502, so that the spindle 5 can rotate flexibly in the spindle bracket 501; the end cover 603 is fixedly connected to the first shaft section 6, and the end cover 603 is tightly pressed against the bearing 502, which can prevent the bearing 502 from escaping from the spindle bracket 501; the encoder bracket 604 is fixedly connected to the spindle bracket 501; the encoder 4 is fixedly connected to the encoder bracket 604; the encoder 4 includes an input rod; the input rod is fixedly connected to the second shaft section 601 through a coupling 606; the encoder 4 is connected to a PLC.

[0046] A pressure cap 607 is provided at the end of the third shaft section 602 ; the pressure cap 607 is pressed tightly against the roller 3 ; a sealing ring installation groove 608 is provided at the end of the end cover 603 ; a sealing ring 605 is provided in the sealing ring installation groove 608 ; and the sealing ring 605 is connected to the first shaft section 6 .

[0047] The pressure cover 607 is fixedly connected to the end of the third shaft section 602 by screws; the roller 3 is sleeved on the third shaft section 602; one end of the roller 3 is pressed against the first shaft section 6; the other end of the roller 3 is pressed against the pressure cover 607; thereby, the roller 3 can be fixedly connected to the third shaft section 602; the sealing ring 605 can achieve sealing at the connection between the end cover 603 and the main shaft 5, and can prevent ultra-exploratory fluid or dust from entering the interior of the main shaft bracket 501 from the end cover 603.

[0048] The monitoring assembly includes a left box cover 700 and a right box cover 701 ; a guide rail 702 is arranged in the right box cover 701 ; a guide rail box 703 is arranged on the spindle support 501 ; a slide groove 704 is arranged on the guide rail box 703 ; and the guide rail 702 is arranged in the slide groove 704 .

[0049] The left box cover 7 and the right box cover 701 can be combined and fixedly connected to form a square box body; the guide rail 702 is fixedly connected to the inner wall of the right box cover 701, and the guide rail 702 is vertically arranged; the guide rail box 703 is fixedly connected to one side of the spindle bracket 501; the guide rail 702 is arranged in the slide groove 704, so as to guide and limit the vertical movement of the spindle bracket 501.

[0050] A spring stopper 8 is provided in the right box cover 701; a spring mounting hole 801 is provided on the spring stopper 8; a plug 802 is provided at the bottom of the right box cover 701; the plug 802 is provided in the spring mounting hole 801; a spring 803 is provided in the spring mounting hole 801; one end of the spring 803 is tightly pressed against the plug 802, and the other end of the spring 803 is tightly pressed against the guide rail box 703.

[0051] The spring stopper 8 is arranged inside the right box cover 701 and on the bottom plate of the right box cover 701; the plug 802 is removed from the spring mounting hole 801 to install and remove the spring 803. The plug 802 cooperates with the spring mounting hole 801 to facilitate the replacement of the spring 803 and ensure the sealing of the internal space of the right box cover 701; when the wheel 201 squeezes the roller 3 downward, the main shaft bracket 501 moves downward to squeeze the spring 803; when the wheel 201 is removed from the roller 3, the spring 803 rebounds, so that the main shaft bracket 501 can be reset.

[0052] Both the left box cover 7 and the right box cover 701 are provided with a mounting groove 9 and a waterproof sealing strip mounting groove 903; the end cover 603 is arranged in the mounting groove 9, and the end cover 603 is connected with a sealing gasket 901; a waterproof strip is arranged in the waterproof sealing strip mounting groove 903; the waterproof strip is arranged between the sealing gasket 901 and the left box cover 7; the left box cover 7 is connected with a waterproof board 902; the sealing gasket 901 is arranged between the waterproof board 902 and the left box cover 7.

[0053] The mounting grooves 9 on the left box cover 7 and the right box cover 701 can be combined into a waist-shaped groove; the roller 3 and the end cover 603 extend out of the box body through the mounting groove 9; and the roller 3 can move vertically through the mounting groove 9; the cross-section of the sealing gasket 901 is elliptical; a through hole is provided on the sealing gasket 901, and the sealing gasket 901 is sleeved on the end cover 603, and can completely cover the mounting groove 9, which can prevent the ultra-exploratory liquid from entering the box body when the roller 3 moves up and down; the waterproof sealing strip mounting groove 903 is arranged along the edge of the mounting groove 9, and the waterproof strip is tightly pressed against the sealing gasket 901, which can enhance the sealing at the mounting groove 903; the waterproof plate 902 is fixedly connected to the left box cover 7 and the right box cover 701 by bolts; a clearance groove is provided on the side of the waterproof plate 902 close to the sealing gasket 901, and a U-shaped through hole is provided on the waterproof plate 902, which can avoid interfering with the up and down movement of the sealing gasket 901.

[0054] An encoder connector 904 is provided at the bottom of the right box cover 701 ; the encoder connector 904 is connected to the encoder 4 ; an air pipe connector 905 is provided at the bottom of the left box cover 7 ; the air pipe connector 905 is connected to the inside of the left box cover 7 .

[0055] The encoder connector 904 is a waterproof connector; the encoder connector 904 is installed at the bottom of the right box cover 701, which is convenient for installing the encoder cable; the air pipe connector 905 is a waterproof connector; the air pipe connector 905 is installed at the bottom of the left box cover 7, and the compressed air enters the box body through the air pipe connector 905, so that the inside of the box body is filled with positive pressure gas, which is further dustproof and waterproof.

[0056] A connecting plate 10 is provided on the right box cover 701 ; the connecting plate 10 is connected to a base 101 ; the base 101 is connected to a square tube 102 ; the workbench 1 includes a crossbeam 103 ; the square tube 102 is connected to the crossbeam 103 .

[0057] The connecting plate 10 is fixedly connected to the right box cover 701 and the base 101 respectively; the base 101 is fixedly connected to the crossbeam 103 of the workbench 1 through the square tube 102; thereby realizing a stable connection between the device and the workbench 1.

[0058] A first waist-shaped hole 104 is provided on the base 101; a first bolt is provided on the square tube 102, and the first bolt is connected to the first waist-shaped hole 104; a connecting groove 105 is provided on the side of the base 101; the connecting plate 10 is provided in the connecting groove 105, and a second waist-shaped hole 106 is provided on the connecting plate 10; a second bolt is provided in the second waist-shaped hole 106, and the second bolt is connected to the base 101; a screw rod 107 is provided on the top of the base 101; a stopper 108 is provided on the screw rod 107; and the stopper 108 is connected to the connecting plate 10.

[0059] The square tube 102 is a hollow square tube; the square tube 102 is fixedly connected to the crossbeam 103; the first waist-shaped hole 104 is horizontally arranged; the first waist-shaped hole 104 can facilitate the base 101 to adjust the installation position on the square tube 102; the second waist-shaped hole 106 is vertically arranged; the second waist-shaped hole 106 can facilitate the connecting plate 10 to adjust the vertical position along the connecting groove 105; a U-shaped hole is provided on the stopper 108; the stopper 108 is clamped on the screw 107; the end of the stopper 108 is fixed to the connecting plate 10 by bolts; thereby, effective limiting of the connecting plate 10 can be achieved.

[0060] The specific workflow of the present invention is as follows:

[0061] The monitoring component is arranged at the lower center of the two rollers 2; and the roller 3 is adjusted to a suitable position through the connecting plate 10 and the base 101 to ensure that the wheel 201 squeezes the roller 3 downward when entering the ultrasonic flaw detector inspection position, and further compresses the spring 803 which already has a certain amount of pre-compression; the roller 3 is tightly attached to the rim of the wheel 201 through the elastic force of the spring 803.

[0062] The workbench 1 rises and lifts the wheel 201 to a position away from the track. The hydraulic motor drives the roller 2 to rotate through the sprocket and chain. The roller 2 drives the wheel 201 to rotate through friction to perform flaw detection. The wheel 201 drives the roller 3 to rotate through friction. The roller 3 drives the main shaft 5 to rotate. The main shaft 5 drives the encoder 4 to rotate through the coupling 606.

[0063] By comparing the values ​​of the encoder 4 of the main shaft structure and the encoder of the roller in the PLC program, a following error alarm is generated when the deviation of the values ​​of the two exceeds a certain range, thereby judging whether the wheel 201 is rotating on the roller 2, and preventing the ultrasonic flaw detector from continuing to inspect without an alarm when the wheel 201 slips or stops on the roller 2, thereby preventing the occurrence of missed inspection accidents where defects of the wheel 201 are not fully detected, thereby ensuring product quality.

[0064] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A wheel rotation monitoring device for a wheel ultrasonic flaw detector, characterized in that: The invention comprises a workbench (1); rollers (2) are arranged on the workbench (1); a monitoring assembly is arranged between adjacent rollers (2); the monitoring assembly comprises a main shaft structure; a roller (3) and an encoder (4) are respectively connected to the main shaft structure; a wheel (201) is arranged on the roller (2); and the wheel (201) is in abutment with the roller (3).

2. A wheel rotation monitoring device for a wheel ultrasonic flaw detector according to claim 1, characterized in that: The spindle structure comprises a spindle (5); a spindle bracket (501) is provided on the spindle (5); one end of the spindle (5) is connected to the roller (3); and the other end of the spindle (5) is connected to the encoder (4).

3. A wheel rotation monitoring device for a wheel ultrasonic flaw detector according to claim 2, characterized in that: Bearings (502) are respectively provided at both ends of the spindle support (501); the spindle (5) is arranged in the spindle support (501), and the spindle (5) is connected to the bearing (502); a first shaft section (6) and a second shaft section (601) are respectively provided at both ends of the spindle (5); an end cover (603) is provided on the first shaft section (6), and the first shaft section (6) is connected to a third shaft section (602); the roller (3) is connected to the third shaft section (602); an encoder support (604) is provided on the spindle support (501); the encoder support (604) is connected to the encoder (4); a coupling (606) is connected between the encoder (4) and the second shaft section (601).

4. A wheel rotation monitoring device for a wheel ultrasonic flaw detector according to claim 3, characterized in that: A pressure cover (607) is provided at the end of the third shaft section (602); the pressure cover (607) is tightly pressed against the roller (3); a sealing ring installation groove (608) is provided at the end of the end cover (603); a sealing ring (605) is provided in the sealing ring installation groove (608); and the sealing ring (605) is connected to the first shaft section (6).

5. A wheel rotation monitoring device for a wheel ultrasonic flaw detector according to any one of claims 2 to 4, characterized in that: The monitoring assembly comprises a left box cover (7) and a right box cover (701); a guide rail (702) is provided in the right box cover (701); a guide rail box (703) is provided on the spindle support (501); a slide groove (704) is provided on the guide rail box (703); and the guide rail (702) is arranged in the slide groove (704).

6. A wheel rotation monitoring device for a wheel ultrasonic flaw detector according to claim 5, characterized in that: The right box cover (701) is provided with a spring stopper (8); the spring stopper (8) is provided with a spring mounting hole (801); the bottom of the right box cover (701) is provided with a plug (802); the plug (802) is arranged in the spring mounting hole (801); a spring (803) is arranged in the spring mounting hole (801); one end of the spring (803) is tightly pressed against the plug (802), and the other end of the spring (803) is tightly pressed against the guide rail box (703).

7. A wheel rotation monitoring device for a wheel ultrasonic flaw detector according to claim 6, characterized in that: The left box cover (7) and the right box cover (701) are both provided with a mounting groove (9) and a waterproof sealing strip mounting groove (903); the end cover (603) is arranged in the mounting groove (9), and the end cover (603) is connected with a sealing gasket (901); a waterproof strip is arranged in the waterproof sealing strip mounting groove (903); the waterproof strip is arranged between the sealing gasket (901) and the left box cover (7); the left box cover (7) is connected with a waterproof board (902); the sealing gasket (901) is arranged between the waterproof board (902) and the left box cover (7).

8. A wheel rotation monitoring device for a wheel ultrasonic flaw detector according to any one of claims 6 to 7, characterized in that: An encoder connector (904) is provided at the bottom of the right box cover (701); the encoder connector (904) is connected to the encoder (4); an air pipe connector (905) is provided at the bottom of the left box cover (7); the air pipe connector (905) is connected to the inside of the left box cover (7).

9. A wheel rotation monitoring device for a wheel ultrasonic flaw detector according to claim 8, characterized in that: The right box cover (701) is provided with a connecting plate (10); the connecting plate (10) is connected to a base (101); the base (101) is connected to a square tube (102); the workbench (1) comprises a crossbeam (103); the square tube (102) is connected to the crossbeam (103).

10. A wheel rotation monitoring device for a wheel ultrasonic flaw detector according to claim 9, characterized in that: The base (101) is provided with a first waist-shaped hole (104); the square tube (102) is provided with a first bolt, and the first bolt is connected to the first waist-shaped hole (104); a connecting groove (105) is provided on the side of the base (101); the connecting plate (10) is arranged in the connecting groove (105), and a second waist-shaped hole (106) is provided on the connecting plate (10); a second bolt is provided in the second waist-shaped hole (106), and the second bolt is connected to the base (101); a screw rod (107) is provided on the top of the base (101); a stopper (108) is provided on the screw rod (107); and the stopper (108) is connected to the connecting plate (10).

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