Flaw detection device for steel wire rope

Abstract

The invention relates to the technical field of detection, in particular to a flaw detection device for a steel wire rope. Comprising a shell, symmetrically-distributed box covers are installed on the top of the shell, a through opening is formed in the side wall of the shell, a limiting sliding groove is formed in the position, on the outer side of the opening, of the side wall of the shell, a limiting sliding ring is slidably connected into the limiting sliding groove, and a rotating disc is fixedly connected to the side wall of the limiting sliding ring; arc-shaped guide grooves distributed at equal intervals in the circumferential direction are formed in the rotating disc, and an arc-shaped rack is fixedly connected to the outer circumferential face of the rotating disc. The two-way screw rotates through the rocking handle to drive the upper guide block and the lower guide block to move, the positions of the upper electric wheel and the lower electric wheel can be adjusted, and the upper electric wheel and the lower electric wheel make close contact with a steel wire rope.

Description

Technical Field

[0001] The present invention relates to the field of detection technology, and in particular to a flaw detection device for a steel wire rope. Background Art

[0002] As a key component of lifting, transportation, and hoisting equipment, wire ropes are subjected to long-term loads such as tension, bending, and wear. They are prone to defects such as broken wires, rust, wear, and deformation, which may cause serious safety accidents. In order to ensure the safe operation of equipment, it is crucial to perform flaw detection on wire ropes to complete the process of detecting and evaluating internal and external defects of wire ropes for subsequent use or processing.

[0003] In the current flaw detection process of wire ropes, most of the inspections are done on the wire rope surface for broken wires, rust, wear, deformation and cross-sectional area reduction. In the current flaw detection process of wire ropes using visual detectors, the presence of debris or rust adhering to the wire rope surface can easily affect the flaw detection results. In addition, the visual detection method can easily misjudge some subtle fractures, resulting in the failure to detect the locations of fractures in some places, causing errors in the flaw detection results of the wire ropes. Continuing to use the wire rope with errors in the results can easily lead to major safety accidents. Summary of the Invention

[0004] In order to overcome the shortcomings mentioned in the above background technology, a technical problem to be solved is to provide a flaw detection device for a wire rope.

[0005] The technical solution is as follows: A flaw detection device for a wire rope, comprising a shell, a symmetrically distributed box cover is installed on the top of the shell, the side wall of the shell is provided with a through opening, and a limit slide groove is provided on the side wall of the shell outside the opening, and a limit slip ring is slidably connected in the limit slide groove, and the side wall of the limit slip ring is fixedly connected to a rotating disk, and the rotating disk is provided with arc guide grooves equidistantly distributed in the circumferential direction, and the outer peripheral surface of the rotating disk is fixedly connected to an arc rack, and the side wall of the shell is provided with a reduction motor through a mounting plate, and the output shaft of the reduction motor is fixedly connected to a transmission gear meshing with the arc rack, and the side wall of the shell is provided with a torsion component for slight rotation of the wire rope after clamping, and the torsion component cooperates with the arc guide groove, and an electric cleaning ring is rotatably installed on one side wall in the shell, and a visual detector is installed on the side of the shell away from the electric cleaning ring.

[0006] Furthermore, the torsion assembly includes a fixed disk fixed to the side wall of the shell through a fixed plate, the fixed disk is located on the side of the rotating disk, and a linear slide groove distributed equidistantly in the circumferential direction is provided on the fixed disk, and an arc groove connected to the linear slide groove is provided on the fixed disk, a sliding rod is slidably connected in the linear slide groove, one end of the sliding rod is slidably connected in the arc guide groove, and the other end of the sliding rod is fixed to a connecting rod, and the inner arc surface of the connecting rod is fixed to conical blocks distributed equidistantly.

[0007] Furthermore, the included angle of the arc groove is 0°-10°.

[0008] Furthermore, the arc-shaped guide grooves on the rotating disks on both sides face opposite directions, and the arc-shaped grooves on the fixed disks on both sides face opposite directions, so as to slightly twist the clamped wire rope to facilitate flaw detection by a visual detector.

[0009] Furthermore, a ball bearing is rotatably connected to the conical block to facilitate the conveying and movement of the steel wire rope after twisting.

[0010] Furthermore, an inclined connecting pipe is embedded in the side wall of the shell, one end of the connecting pipe is connected to a material receiving shell, the material receiving shell is located inside the shell and its feed port faces the electric cleaning ring, the other end of the connecting pipe is connected to a circular shell, an exhaust fan is installed in the circular shell through a support plate, a filter frame is slidably connected to the middle part of the lower side of the circular shell, and a handle is fixed to the bottom of the filter frame.

[0011] Furthermore, a circular groove is provided on the filter frame, and the circular groove is used to intercept and store impurities.

[0012] Furthermore, a mounting frame is fixedly connected to one side wall of the shell, and a symmetrically distributed vertical slide groove is provided on the mounting frame. A bidirectional screw is rotatably connected to the mounting frame, and a symmetrically distributed guide block is threadedly connected to the bidirectional screw, and the guide block is slidably engaged with the vertical slide groove, a crank handle is fixed to the upper end of the bidirectional screw, and an electric wheel is fixed to the side wall of the guide block.

[0013] Furthermore, the other side wall of the shell is fixedly connected to a fixing frame distributed equidistantly in the circumferential direction, the fixing frame is located on the outside of the fixed disk, the fixing frame is fixed to a rotating shaft, the rotating shaft is rotatably connected to a swing plate, the rotating shaft on both sides of the swing plate are sleeved with torsion springs, one end of the torsion spring is connected to the swing plate, and the other end of the torsion spring is connected to the fixing frame, and both end portions of the swing plate are rotatably connected to extrusion wheels.

[0014] Furthermore, the diameter of the extrusion wheel gradually increases from the middle to both sides, and a rubber protrusion is provided in the middle of the extrusion wheel to increase the friction resistance between the extrusion wheel and the wire rope.

[0015] The beneficial effects of the present invention are as follows: the present invention uses a crank to rotate the bidirectional screw to drive the upper and lower guide blocks to move, so that the positions of the upper and lower electric wheels can be adjusted, so that the upper and lower electric wheels are in close contact with the wire rope, so that the wire rope can be easily transported to the right by the upper and lower electric wheels, and the transmission gear drives the arc rack to move circumferentially through the operation of the reduction motor, and the circumferential movement of the arc rack drives the rotating disk to rotate, and the rotation of the rotating disk through the arc guide groove thereon can make the torsion component work to clamp the wire rope and achieve slight torsion, so that the breakage of the wire rope can be more obvious. It is very convenient for visual inspection to avoid errors in the inspection results due to unclear fractures, which may cause major safety accidents if the wire rope is continued to be used. The electric cleaning ring can clean the debris and rust on the surface of the wire rope to avoid the debris or rust on the surface of the wire rope affecting the inspection results during visual inspection and giving wrong judgments. The exhaust fan can be used to extract the air in the shell. For this reason, the debris and rust cleaned by the electric cleaning ring can enter the receiving shell through the air. The debris in the receiving shell enters the round shell through the connecting pipe and is intercepted by the filter frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the shell of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the electric cleaning ring of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the reduction motor of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating disk of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the fixing plate of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the connecting rod of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the material receiving shell of the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the filter frame of the present invention; Figure 10 This is a schematic diagram of the three-dimensional structure of the electric wheel of the present invention; Figure 11 It is a schematic diagram of the three-dimensional structure of the extrusion wheel of the present invention.

[0017] Explanation of the reference numerals: 1 housing, 2 box cover, 3 opening, 4 limiting slide, 5 limiting slip ring, 6 rotating disk, 7 arc guide groove, 8 arc rack, 9 mounting plate, 10 reduction motor, 11 transmission gear, 12 fixed plate, 13 fixed disk, 14 linear slide, 141 arc groove, 15 slide rod, 16 connecting rod, 17 tapered block, 18 ball, 19 electric cleaning ring, 20 visual detector, 21 connecting pipe, 22 receiving shell, 23 round shell, 24 exhaust fan, 25 filter frame, 26 handle, 27 mounting frame, 28 vertical slide, 29 bidirectional screw, 30 guide block, 31 crank handle, 32 electric wheel, 33 fixed frame, 34 rotating shaft, 35 swing plate, 36 extrusion wheel. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and examples.

[0019] Example 1

[0020] A flaw detection device for a wire rope, such as Figures 1-11 As shown, it includes a shell 1, and two box covers 2 are installed on the top of the shell 1 in a symmetrical manner. The box covers 2 are made of glass for easy viewing of the situation inside the shell 1. Openings 3 are provided on the left and right side walls of the shell 1, and a limiting slide groove 4 is provided on the side wall of the shell 1 outside the opening 3. A limiting slip ring 5 is slidably connected in the limiting slide groove 4, and a rotating disk 6 is fixed to the side wall of the limiting slip ring 5. The rotating disk 6 is provided with four arc guide grooves 7 equidistantly distributed in the circumferential direction. The arc guide grooves 7 on the rotating disks 6 on the left and right sides face oppositely. An arc rack 8 is fixed to the outer circumferential surface of the rotating disk 6. A reduction motor 10 is provided on the left and right side walls of the shell 1 through a mounting plate 9. The output shaft of the reduction motor 10 is fixedly connected to a transmission gear 11 meshing with the adjacent arc rack 8. A torsion assembly for slight rotation after the wire rope is clamped is provided on the left and right side walls of the shell 1. The torsion assembly cooperates with the arc guide groove 7. An electric cleaning ring 19 is rotatably installed on the left side wall of the shell 1, and a visual detector 20 is installed on the bottom right side of the shell 1.

[0021] The torsion assembly includes a fixed plate 13 fixed to the side wall of the housing 1 through a fixed plate 12. The left and right fixed plates 13 are located outside the left and right rotating plates 6, and the adjacent fixed plates 13 and the rotating plates 6 are in close contact. The fixed plate 13 is provided with four linear slide grooves 14 equidistantly distributed in the circumferential direction, and the linear slide grooves 14 correspond one-to-one with the arc-shaped guide grooves 7. The fixed plate 13 is provided with an arc-shaped groove 141 connected to the linear slide groove 14. The angle of the arc-shaped groove 141 is 0°-10°. The arc grooves 141 on the fixed disks 13 on the left and right sides face opposite directions, and are used to slightly twist the wire rope after clamping, so as to facilitate flaw detection by the visual detector 20. The arc grooves 141 are located on the inner side of the fixed disk 13. A slide bar 15 is slidably connected in the linear slide 14. One end of the slide bar 15 is slidably connected to the arc guide groove 7. The other end of the slide bar 15 is fixedly connected to a connecting rod 16. The inner arc surface of the connecting rod 16 is fixedly connected to tapered blocks 17 distributed at equal distances. The tapered blocks 17 are rotated on the inner surface of the tapered blocks 17. The gear 18 is connected with the gear 11 to transmit the arc rack 8 to the rotating disk 6, and the rotating disk 6 rotates through the arc guide groove 7 on it to squeeze the slide bar 15 to move along the linear slide groove 14, so that the four slide bars 15 drive the parts on it to move inward. For this reason, the ball 18 moves and is stuck in the depression formed by the twisting of multiple strands of steel wire on the wire rope, and the slide bar 15 slides into the arc groove 141. For this reason, the slide bar 15 can swing a certain angle circumferentially. For this reason, the ball 18 can follow the circumferential swing. Because the directions of the left and right arc guide grooves 7 and the arc groove 141 are different, the directions of the circumferential swing of the balls 18 on the left and right sides are different, thereby achieving a slight twisting of the wire rope, thereby making the wire rope break more obvious, which is convenient for visual detector 20 to detect flaws, thereby avoiding the error in the detection result caused by the unclear break and continuing to use it, which may cause a major safety accident.

[0022] The front and rear side walls of the shell 1 are both embedded with an inclined connecting pipe 21, one end of the connecting pipe 21 is connected to a material receiving shell 22, the material receiving shell 22 is located in the shell 1 and its feed port faces the electric cleaning ring 19, the other end of the connecting pipe 21 is connected to a circular shell 23, an exhaust fan 24 is installed in the circular shell 23 through a support plate, and a filter rack 25 is slidably connected to the middle part of the lower side of the circular shell 23, a circular groove is provided on the filter rack 25, and the circular groove is used to intercept impurities for storage. A handle 26 is fixed to the bottom of the filter rack 25, and the air in the shell 1 can be extracted by the exhaust fan 24, so that the debris and rust cleaned by the electric cleaning ring 19 can enter the material receiving shell 22 through the air, and the debris in the material receiving shell 22 enters the circular shell 23 through the connecting pipe 21 and is intercepted by the filter rack 25.

[0023] A mounting bracket 27 is fixed to the right side wall of the shell 1, and two vertical slide grooves 28 are symmetrically distributed in the upper and lower parts are provided on the mounting bracket 27. A bidirectional screw 29 is rotatably connected to the mounting bracket 27, and two guide blocks 30 symmetrically distributed in the upper and lower parts are threadedly connected to the bidirectional screw 29, and the upper and lower guide blocks 30 are respectively slidably matched with the upper and lower vertical slide grooves 28. A crank 31 is fixed to the upper end of the bidirectional screw 29, and an electric wheel 32 is fixed to the side wall of the guide block 30. The bidirectional screw 29 is rotated by the crank 31 to drive the upper and lower guide blocks 30 to move closer together, so that the upper and lower electric wheels 32 are in close contact with the wire rope, thereby facilitating the rightward transportation of the wire rope by the upper and lower electric wheels 32.

[0024] The left side wall of the housing 1 is fixed with three fixing frames 33 that are equidistantly distributed in the circumferential direction. The three fixing frames 33 are located on the outside of the fixed disk 13. A rotating shaft 34 is fixed to the fixing frame 33. A swing plate 35 is rotatably connected to the rotating shaft 34. A torsion spring is sleeved on the rotating shaft 34 on both sides of the swing plate 35. One end of the torsion spring is connected to the swing plate 35, and the other end of the torsion spring is connected to the fixing frame 33. The left and right ends of the swing plate 35 are rotatably connected to extrusion wheels 36. The diameter of the extrusion wheel 36 gradually increases from the middle to the sides, and a rubber protrusion is provided in the middle of the extrusion wheel 36 to increase the friction resistance between the wire rope and the wire rope. The wire rope moves to the right and is inserted into the three extrusion wheels on the right During the 36 process, the wire rope will squeeze the three extrusion wheels 36 on the right side to swing outward, and the torsion spring will be tightened to store force. For this reason, the three extrusion wheels 36 on the left side can be swung inward through the swing plate 35, so that the three extrusion wheels 36 on the left side can be in contact with the outer surface of the wire rope, and the rubber protrusions on the extrusion wheels 36 can better contact with the wire rope and increase the friction resistance between the wire rope and the wire rope. At this time, the action of the torsion spring can make the three extrusion wheels 36 on the right side in close contact with the wire rope, and at the same time, the wire rope can be straightened to the right to avoid bending or entanglement of the wire rope, thereby affecting subsequent conveying flaw detection.

[0025] During use, the user first inserts the wire rope from the left side between the three squeezing wheels 36 on the right side. During the process of the wire rope moving to the right and inserting into the three squeezing wheels 36 on the right side, the wire rope will squeeze the three squeezing wheels 36 on the right side to swing outward, and the torsion spring will be tightened to store force. For this reason, the three squeezing wheels 36 on the left side can be swung inward by the swing plate 35, so that the three squeezing wheels 36 on the left side can be in contact with the outer surface of the wire rope, and the rubber protrusions on the squeezing wheels 36 can better contact with the wire rope and increase the friction resistance between the wire rope and the wire rope. At this time, the action of the torsion spring can make the three squeezing wheels 36 on the right side closely contact with the wire rope, and at the same time, the wire rope can be straightened to be transported to the right, avoiding the wire rope from bending or getting entangled. The right end of the wire rope passes through the fixed disk 13, the rotating disk 6 and the opening 3 on the left side and enters the housing 1, and then passes through the electric cleaning ring 19 and the visual detector 20 respectively, and passes through the opening 3, the rotating disk 6, the fixed disk 13 and the upper and lower electric wheels 32 on the right side to the right. Then the user rotates the bidirectional screw 29 through the crank 31 to drive the upper and lower guide blocks 30 to move closer, so that the upper and lower electric wheels 32 are in close contact with the wire rope. For this reason, it is convenient to transport the wire rope to the right through the upper and lower electric wheels 32. When performing flaw detection on the wire rope, the user first starts the reduction motor 10. The reduction motor 10 can make the arc rack 8 move circumferentially through the transmission gear 11. The circumferential movement of the shaped rack 8 can drive the rotating disk 6 to rotate, and the rotation of the rotating disk 6 can squeeze the slide bar 15 to move through the arc guide groove 7 on it. In this process, the slide bar 15 is also limited by the linear slide groove 14. For this reason, the slide bar 15 can only move along the linear slide groove 14, so that the four slide bars 15 can move inward. The inward movement of the four slide bars 15 can drive the connecting rod 16 thereon to move the tapered block 17 and the ball 18. The movement of the ball 18 can contact the surface of the wire rope, and the ball 18 is stuck in the depression formed by the twisting of multiple strands of steel wire on the wire rope. At this time, the slide bar 15 moves into the innermost position of the linear slide groove 14, and the transmission gear 11 continues to rotate to drive the arc rack 8 to move circumferentially, so that the slide bar 15 can slide into the arc The sliding rod 15 can swing circumferentially at a certain angle in the groove 141, so that the ball 18 can swing circumferentially along with it. Because the left and right arc-shaped guide grooves 7 and the arc-shaped groove 141 have different directions, the left and right balls 18 can swing circumferentially in different directions, thereby achieving a slight twisting of the wire rope (the twisting of the wire rope to a certain extent will not cause damage to it. The user controls the twisting angle according to the actual situation, and the twisting angle at both ends of the wire rope is controlled within a reasonable range), so that the wire rope break is more obvious and convenient for the visual detector 20 to detect flaws, thereby avoiding the error in the detection result due to the unclear fracture and continuing to use it, which may cause a major safety accident. After the wire rope twisting is completed, the user turns off the reduction motor 10.And start the electric cleaning ring 19, visual detector 20, exhaust fan 24 and electric wheel 32. The electric wheel 32 can transport the wire rope to the right. The electric cleaning ring 19 can clean the debris and rust on the surface of the wire rope to avoid affecting the flaw detection result due to debris or rust on the surface of the wire rope during visual flaw detection, and giving an erroneous judgment. The exhaust fan 24 can extract the air in the shell 1, so that the debris and rust cleaned by the electric cleaning ring 19 can enter the material receiving shell 22 through the air, and the debris in the material receiving shell 22 enters the round shell 23 through the connecting pipe 21 and is The filter rack 25 intercepts the debris. When it is necessary to clean the debris intercepted by the filter rack 25, the user can turn off the exhaust fan 24 and move the filter rack 25 downward using the handle 26. The debris on the filter rack 25 is then removed and cleaned. After the debris on the filter rack 25 is cleaned, the user can reset the filter rack 25. Because the exhaust fan 24 is provided on both the front and rear sides of the housing 1, each cleaning only cleans one side, and does not affect the extraction work of the debris trough. After completing the wire rope flaw detection, the user can turn off the electric cleaning ring 19, visual detector 20, exhaust fan 24 and electric wheel 32.

[0026] Example 2

[0027] On the basis of Example 1, the connecting rod 16 is replaced by a telescopic rod (the telescopic rod is divided into a fixed part and a movable part, and the movable part is slidably connected to the inner side of the fixed part), and the side wall of the fixed part of the telescopic rod is threadedly connected with a bolt, which can fix the movable part of the telescopic rod. This makes it convenient to clamp and twist steel wire ropes of different diameters, thereby realizing flaw detection of steel wire ropes of different diameters.

[0028] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A flaw detection device for a steel wire rope, characterized in that: The invention comprises a shell (1), wherein a symmetrically distributed box cover (2) is installed on the top of the shell (1), a through opening (3) is provided on the side wall of the shell (1), a limiting slide groove (4) is provided on the side wall of the shell (1) outside the opening (3), a limiting slip ring (5) is slidably connected in the limiting slide groove (4), a rotating disk (6) is fixedly connected to the side wall of the limiting slip ring (5), an arc-shaped guide groove (7) equidistantly distributed in the circumferential direction is provided on the rotating disk (6), an arc-shaped rack (8) is fixedly connected to the outer peripheral surface of the rotating disk (6), and the rotating disk (6) is provided with a plurality of arc-shaped guide grooves (7) equidistantly distributed in the circumferential direction. The side wall of the housing (1) is provided with a reduction motor (10) through a mounting plate (9), and the output shaft of the reduction motor (10) is fixedly connected to a transmission gear (11) meshing with the arc-shaped rack (8). The side wall of the housing (1) is provided with a torsion assembly for slightly rotating the wire rope after clamping, and the torsion assembly cooperates with the arc-shaped guide groove (7). An electric cleaning ring (19) is rotatably installed on one side wall in the housing (1), and a visual detector (20) is installed on a side of the housing (1) away from the electric cleaning ring (19).

2. A flaw detection device for a steel wire rope according to claim 1, characterized in that: The torsion assembly includes a fixed disk (13) fixed to the side wall of the shell (1) through a fixed plate (12), the fixed disk (13) is located on the side of the rotating disk (6), and a linear slide groove (14) equidistantly distributed in the circumferential direction is provided on the fixed disk (13), and an arc groove (141) connected to the linear slide groove (14) is provided on the fixed disk (13), a slide rod (15) is slidably connected in the linear slide groove (14), one end of the slide rod (15) is slidably connected in the arc guide groove (7), and the other end of the slide rod (15) is fixed to a connecting rod (16), and the inner arc surface of the connecting rod (16) is fixed to conical blocks (17) equidistantly distributed.

3. A flaw detection device for a steel wire rope according to claim 2, characterized in that: The included angle of the arc-shaped groove (141) is 0°-10°.

4. A flaw detection device for a steel wire rope according to claim 3, characterized in that: The arc-shaped guide grooves (7) on the rotating disks (6) on both sides face in opposite directions, and the arc-shaped grooves (141) on the fixed disks (13) on both sides face in opposite directions, so as to slightly twist the clamped wire rope to facilitate flaw detection by the visual detector (20).

5. A flaw detection device for a steel wire rope according to claim 4, characterized in that: The conical block (17) is rotatably connected to a ball (18) to facilitate the conveying and movement of the steel wire rope after twisting.

6. A flaw detection device for a steel wire rope according to claim 5, characterized in that: The side wall of the shell (1) is embedded with an inclined connecting pipe (21), one end of the connecting pipe (21) is connected to a material receiving shell (22), the material receiving shell (22) is located in the shell (1) and its feed port faces the electric cleaning ring (19), the other end of the connecting pipe (21) is connected to a round shell (23), an exhaust fan (24) is installed in the round shell (23) through a support plate, the middle part of the lower side of the round shell (23) is slidably connected to a filter frame (25), and the bottom of the filter frame (25) is fixed with a handle (26).

7. A flaw detection device for a steel wire rope according to claim 6, characterized in that: A circular groove is provided on the filter frame (25), and the circular groove is used for intercepting and storing impurities.

8. A flaw detection device for a steel wire rope according to claim 7, characterized in that: A mounting frame (27) is fixedly connected to one side wall of the housing (1), and a symmetrically distributed vertical slide groove (28) is provided on the mounting frame (27). A bidirectional screw (29) is rotatably connected to the mounting frame (27), and a symmetrically distributed guide block (30) is threadedly connected to the bidirectional screw (29), and the guide block (30) is slidably engaged with the vertical slide groove (28). A crank handle (31) is fixedly connected to the upper end of the bidirectional screw (29), and a motorized wheel (32) is fixedly connected to the side wall of the guide block (30).

9. A flaw detection device for a steel wire rope according to claim 8, characterized in that: The other side wall of the housing (1) is fixedly connected to a fixing frame (33) distributed equidistantly in the circumferential direction. The fixing frame (33) is located outside the fixing plate (13). A rotating shaft (34) is fixedly connected to the fixing frame (33). A swing plate (35) is rotatably connected to the rotating shaft (34). Torsion springs are sleeved on the rotating shafts (34) on both sides of the swing plate (35). One end of the torsion spring is connected to the swing plate (35), and the other end of the torsion spring is connected to the fixing frame (33). Both ends of the swing plate (35) are rotatably connected to extrusion wheels (36).

10. A flaw detection device for a steel wire rope according to claim 9, characterized in that: The diameter of the extrusion wheel (36) gradually increases from the middle to both sides, and a rubber protrusion is provided in the middle of the extrusion wheel (36) to increase the friction resistance between the extrusion wheel (36) and the steel wire rope.

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