A ball valve wear resistance detection device

Abstract

The present invention belongs to the technical field of ball valve detection, and specifically is a ball valve wear resistance detection device, including a conveyor, wherein the conveyor includes a bracket and a conveyor belt; a fixed plate is provided at the top of the conveyor and on one side of the conveyor belt, a hydraulic cylinder is provided on the side of the fixed plate away from the conveyor belt, the output end of the hydraulic cylinder passes through the fixed plate, and a receiving plate is provided at the end of the hydraulic cylinder output end; the ball valve wear resistance detection device described in the present invention is provided with a friction block and a camera, and when in use, a turntable drives the friction block to rotate, and the friction block rotates inside the ball of the ball valve, generating friction with the inner wall of the ball valve ball, and the camera records the picture of the inner wall of the valve ball and uploads the picture to an external computer; the computer judges and records whether the current ball of the ball valve is qualified, and the conveyor drives the next ball valve on the conveyor belt to move to the detection position for continuous detection; such reciprocating can greatly improve the detection efficiency, and is suitable for the detection of large quantities of ball valves in actual production.

Description

Technical Field

[0001] The invention belongs to the technical field of ball valve detection, in particular to a ball valve wear resistance detection device. Background Art

[0002] A ball valve is a valve whose opening and closing parts are driven by the valve stem and rotate around the axis of the ball valve. It can be used for regulating and controlling fluids. It is currently widely used in oil refining, long-distance pipelines, chemicals, papermaking, pharmaceuticals, water conservancy, electricity, municipal administration, steel and other industries, and occupies a pivotal position in the national economy. In operations such as ash discharge, mineral powder transportation, pulverized coal transportation, and pulp pumping, wear-resistant ball valves are usually used for control.

[0003] The wear-resistant ball valve adopts a special sealing structure with reliable sealing performance and truly achieves zero leakage; the ball and valve seat have good shear self-cleaning function; the sealing pair is processed by tungsten carbide high wear-resistant alloy hardening technology, with high hardness and super wear resistance. The service life is more than twice that of the current conventional metal sealing ball valve, and the appearance still maintains the beautiful shape of the conventional ball valve; the wear-resistant ball valve needs to be tested for wear resistance on the inner wall of the sealing pair during production. The existing testing methods include surface morphology method, notch method, isotope determination method, scratch test, etc. The specific surface morphology method is to use a surface roughness meter for local measurement and take the flat Average value; the notch method is to use a microscope and a hardness tester to make local measurements and measure along the depth of the indentation; the isotope determination method is to continuously record the wear of the sample by taking photos and using a counter; the scratch test is to slide sandpaper or a grinding wheel on the coating surface, and judge the wear resistance of the coating by observing whether there are scratches on the coating or the size of the scratches; the observation method can be achieved by collecting pictures before and after the coating and comparing them with a computer; the above detection method requires the ball valve to be placed on the detection table for detection during the specific detection. The detection process requires the staff to manually operate the detection instrument, and the detection efficiency is low. It is not suitable for large-scale ball valve detection.

[0004] To this end, the present invention provides a ball valve wear resistance detection device. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: a ball valve wear resistance detection device according to the present invention comprises a conveyor, the conveyor comprises a bracket and a conveyor belt; a fixing plate is arranged at the top of the conveyor and on one side of the conveyor belt, a hydraulic cylinder is arranged on the side of the fixing plate away from the conveyor belt, the output end of the hydraulic cylinder passes through the fixing plate, and a receiving plate is arranged at the end of the output end of the hydraulic cylinder;

[0007] A motor is arranged on the side of the receiving plate away from the hydraulic cylinder, a turntable is arranged at the end of the motor output end, a plurality of rectangular grooves are evenly opened in a ring shape on the side of the turntable away from the motor, a guide rod is arranged inside the rectangular groove, one end of the guide rod is located in the rectangular groove, and the other end passes through the outside of the rectangular groove, and a friction block is arranged at the end of the guide rod located outside the rectangular groove;

[0008] A rotating shaft is rotatably connected at the center of a side of the turntable away from the motor, a gravity piece is arranged at the end of the rotating shaft away from the turntable, a sleeve ring is sleeved at the end of the rotating shaft close to the turntable, and a plurality of cameras are evenly arranged on the surface of the sleeve ring.

[0009] Preferably, the gravity member comprises a telescopic rod and a brake block; the housing portion of the telescopic rod is mounted on the surface of the rotating shaft, and the bottom end of the output end of the telescopic rod is connected to the brake block.

[0010] Preferably, sandpaper can be attached to the surface of the friction block.

[0011] Preferably, a side of the friction block away from the motor is rotatably connected to a guide plate, and an end of the guide plate away from the friction block is inclined to point to the center line of the turntable.

[0012] Preferably, a linkage plate is provided on one side of the guide plate close to the turntable;

[0013] A plurality of air cylinders are arranged in a ring shape on the side of the turntable facing the linkage plate, a piston is slidably connected inside the air cylinder, an extrusion rod is arranged on the side of the piston facing outside the air cylinder, and the end of the extrusion rod away from the piston is in contact with the side of the linkage plate; an air inlet pipe is arranged on the side of the air cylinder, an air inlet head is arranged on the side of the air inlet pipe away from the air cylinder, and a one-way valve is arranged inside the air inlet head; an air outlet pipe is arranged on the side of the air cylinder away from the air inlet pipe, and a pressure relief valve is arranged on the end of the air outlet pipe away from the air cylinder, and the pressure relief valve is installed on the side of the turntable.

[0014] Preferably, a plurality of air pumps are arranged in a ring shape on one side of the receiving plate facing the turntable, an air duct is arranged at the output end of the air pump, and when the motor controls the turntable to rotate and then brake, the plurality of air inlet heads are docked and sealed with the air outlets of the plurality of air ducts.

[0015] Preferably, a rectangular notch is opened on the side of the receiving plate, a rotating belt is inserted into the inside of the rectangular notch, a part of the rotating belt is inside the rectangular notch, and the other part is outside the rectangular notch.

[0016] Preferably, a receiving plate is provided on the side of the conveyor away from the fixed plate, a pair of positioning plates are provided on the end of the receiving plate close to the conveyor, a baffle is rotatably provided between the pair of positioning plates, and the baffle is attached to the side of the conveyor belt on the conveyor; a pair of springs are provided between the baffle and the top of the receiving plate.

[0017] Preferably, a buffer gap is formed at the bottom end of the baffle plate on one side close to the conveyor, and the top end of the buffer gap is located above the conveyor belt on the conveyor.

[0018] Preferably, a plurality of receiving rollers are provided at the top end of the receiving plate.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The device for detecting the wear resistance of a ball valve described in the present invention is provided with a friction block and a camera. When in use, a turntable drives the friction block to rotate. The friction block rotates inside the ball body of the ball valve, and generates friction with the inner wall of the ball body of the ball valve. The camera records the image of the inner wall of the valve body and uploads the image to an external computer. After the turntable rotates for a period of time, the hydraulic cylinder drives the turntable to reset and detach from the ball body of the ball valve. The computer determines and records whether the current ball body of the ball valve is qualified. The conveyor drives the next ball valve on the conveyor belt to move to the detection position for continuous detection. Such reciprocating motion can greatly improve the detection efficiency and is suitable for the detection of large quantities of ball valves in actual production.

[0021] 2. A ball valve wear resistance detection device described in the present invention is provided with a guide plate; for ball valve sphere openings with different inner diameters, when the turntable moves toward the inside of the ball valve sphere, the end of the guide plate away from the friction block will first enter the inside of the ball valve sphere, and then the side of the guide plate will be squeezed by the ball valve sphere opening, and the end of the guide plate will be pressed against the side of the rotating shaft to fix the angle between the guide plate and the rotating shaft, and then the guide plate will guide the friction block into the inside of the ball valve sphere, and in this process, the friction block can drive the guide rod to move; by setting the guide plate, the friction block is applicable to ball valve spheres with different inner diameters, thereby facilitating the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 is a stereogram of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the fixed plate of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the receiving plate of the present invention;

[0026] Figure 4 It is a schematic diagram of a turntable of the present invention;

[0027] Figure 5 It is a schematic diagram of the rotary table connection structure of the present invention;

[0028] Figure 6 It is a schematic diagram of the position of the receiving plate of the present invention;

[0029] Figure 7 It is a schematic diagram of the gas cylinder connection structure of the present invention;

[0030] Figure 8 It is a side schematic diagram of the gas cylinder of the present invention;

[0031] Fig. 9 is a schematic top view of a receiving plate of the present invention;

[0032] Fig.10 is a schematic diagram of a rotating belt of the present invention;

[0033] Fig.11 It is a schematic diagram of a material receiving plate of the present invention;

[0034] Fig.12 It is a schematic diagram of the baffle connection structure of the present invention;

[0035] Fig.13 It is a side schematic diagram of the baffle of the present invention.

[0036] In the figure: 1. conveyor; 2. fixed plate; 21. hydraulic cylinder; 22. receiving plate; 23. motor; 24. turntable; 25. rectangular groove; 26. guide rod; 27. friction block; 3. rotating shaft; 31. sleeve ring; 32. camera; 33. gravity member; 331. telescopic rod; 332. brake block; 4. guide plate; 41. linkage plate; 5. air cylinder; 51. piston; 52. extrusion rod; 53. air inlet pipe; 54. air inlet head; 55. air outlet pipe; 56. pressure relief valve; 6. receiving plate; 61. positioning plate; 62. baffle; 63. spring; 64. buffer gap. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] like Figures 1 to 5 As shown, a ball valve wear resistance detection device according to an embodiment of the present invention comprises a conveyor 1, the conveyor 1 comprises a bracket and a conveyor belt; a fixing plate 2 is arranged at the top of the conveyor 1 and on one side of the conveyor belt, a hydraulic cylinder 21 is arranged on the side of the fixing plate 2 away from the conveyor belt, the output end of the hydraulic cylinder 21 passes through the fixing plate 2, and a receiving plate 22 is arranged at the end of the output end of the hydraulic cylinder 21;

[0039] A motor 23 is arranged on the side of the receiving plate 22 away from the hydraulic cylinder 21, and a turntable 24 is arranged at the end of the output end of the motor 23. A plurality of rectangular grooves 25 are evenly opened in a ring shape on the side of the turntable 24 away from the motor 23. A guide rod 26 is arranged inside the rectangular groove 25. One end of the guide rod 26 is located in the rectangular groove 25, and the other end passes through the outside of the rectangular groove 25. A friction block 27 is arranged at the end of the guide rod 26 located outside the rectangular groove 25.

[0040] A rotating shaft 3 is rotatably connected at the center of one side of the rotating disk 24 away from the motor 23. A gravity member 33 is arranged at one end of the rotating shaft 3 away from the rotating disk 24. A sleeve ring 31 is sleeved at one end of the rotating shaft 3 close to the rotating disk 24. A plurality of cameras 32 are evenly arranged on the surface of the sleeve ring 31.

[0041] In the actual production of ball valves, it is necessary to test the wear resistance of the inner wall of the sealing pair of the ball valve; the existing detection methods can be used for detection through surface morphology method, scratch method, isotope determination method, scratch test and other detection methods; the above detection methods need to place the ball valve on the detection table for detection during the specific detection, and the detection process requires the staff to manually operate the detection instrument, the detection efficiency is low, and it is not suitable for large-scale ball valve detection; to solve the above problems, the embodiment of the present invention is provided with a receiving plate 22, a rotating disk 24, a friction block 27 and other structures, and the specific working process is as follows; during the detection, the manipulator will The ball of the ball valve in production is transferred to the conveyor belt surface on the conveyor 1, and then the conveyor 1 is started. The conveyor belt stops when it drives the ball of the ball valve to the detection position. Then the hydraulic cylinder 21 is started, and the hydraulic cylinder 21 drives the motor 23 on the receiving plate 22 to move closer to the ball of the ball valve to be detected. At this time, the opening of the ball of the ball valve is facing the turntable 24 at the output end of the motor 23. When the turntable 24 moves to the inside of the ball of the ball valve, it stops. Then the motor 23 is started, and the motor 23 drives the turntable 24 to rotate. The turntable 24 throws the guide rod 26 inside the rectangular groove 25 outward through centrifugal force. , the guide rod 26 drives the friction block 27 to move toward the inner wall of the ball valve sphere. When the friction block 27 contacts the inner wall of the ball valve sphere, under the action of centrifugal force, the friction block 27 squeezes the inner wall of the ball valve sphere, and as the turntable 24 rotates, the friction block 27 slides on the inner wall of the ball valve sphere. At this time, the camera 32 on the shaft 3 records the image of the inner wall of the ball valve sphere and uploads the image to an external computer. It should be pointed out that when the turntable 24 enters the interior of the ball valve sphere, the shaft 3 drives the gravity member 33 to enter the interior of the ball valve sphere synchronously. The gravity member 33 drives the rotating shaft 3 to remain stable, and the rotating shaft 3 remains stable when the turntable 24 rotates, so the sleeve ring 31 on the rotating shaft 3 remains stable, and the camera 32 on the sleeve ring 31 remains stable to ensure the shooting effect; after the turntable 24 rotates for a period of time, the hydraulic cylinder 21 drives the turntable 24 to reset and disengage from the ball valve ball, the computer determines and records whether the current ball valve ball is qualified, and the conveyor 1 drives the next ball valve on the conveyor belt to move to the detection position for further detection; such reciprocating can greatly improve the detection efficiency, which is suitable for the detection of large quantities of ball valves in actual production.

[0042] The gravity piece 33 includes a telescopic rod 331 and a brake block 332; the shell part of the telescopic rod 331 is installed on the surface of the rotating shaft 3, and the bottom end of the output end of the telescopic rod 331 is connected to the brake block 332; after the gravity piece 33 enters the ball body of the ball valve, the telescopic rod 331 starts, driving the brake block 332 at the bottom to be squeezed to the inner wall of the ball valve ball, and the friction between the brake block 332 and the inner wall of the ball valve ball further brakes the rotating shaft 3, thereby further fixing the camera 32 and improving the stability of the camera 32.

[0043] The surface of the friction block 27 can be attached with sandpaper; for some inner walls of the ball valve that require sliding friction with sandpaper, sandpaper can be set on the friction block 27 for testing to improve the scope of application.

[0044] like Figures 3 to 10 As shown, the side of the friction block 27 away from the motor 23 is rotatably connected to the guide plate 4, and the end of the guide plate 4 away from the friction block 27 is tilted to point to the center line of the turntable 24; for the ball valve sphere openings with different inner diameters, when the turntable 24 moves toward the inside of the ball valve sphere, the end of the guide plate 4 away from the friction block 27 will first enter the inside of the ball valve sphere, and then the side of the guide plate 4 will be squeezed by the ball valve sphere opening, and the end of the guide plate 4 will be pressed against the side of the rotating shaft 3 to fix the angle between the guide plate 4 and the rotating shaft 3, and then the guide plate 4 will guide the friction block 27 to the inside of the ball valve sphere. In this process, the friction block 27 can drive the guide rod 26 to move; by setting the guide plate 4, the friction block 27 is applicable to ball valve spheres with different inner diameters, which facilitates the detection process.

[0045] A linkage plate 41 is provided on one side of the guide plate 4 close to the rotating disk 24;

[0046] The side of the rotating disk 24 facing the linkage plate 41 is provided with a plurality of air cylinders 5 in an annular shape, and a piston 51 is slidably connected inside the air cylinder 5, and an extrusion rod 52 is provided on the side of the piston 51 facing the outside of the air cylinder 5, and the end of the extrusion rod 52 away from the piston 51 contacts the side of the linkage plate 41; the side of the air cylinder 5 is connected with an air inlet pipe 53, and the side of the air inlet pipe 53 away from the air cylinder 5 is provided with an air inlet head 54, and a one-way valve is provided inside the air inlet head 54; the side of the air cylinder 5 away from the air inlet pipe 53 is connected with an air outlet pipe 55, and the end of the air outlet pipe 55 away from the air cylinder 5 is connected with a pressure relief valve 56, which is installed on the side of the rotating disk 24; when the guide plate 4 moves toward the inside of the ball valve ball, the opening of the ball valve ball will squeeze the side of the guide plate 4, so that the end of the guide plate 4 away from the friction block 27 gradually approaches the position of the rotating shaft 3, and in this process, the guide plate 4 drives the linkage plate 41 squeezes the extrusion rod 52, and when the extrusion rod 52 is squeezed, it drives the piston 51 to move inside the air cylinder 5. As the piston 51 moves, the gas pressure inside the air cylinder 5 gradually increases. When the gas pressure increases to a certain level, the air cylinder 5 releases pressure through the pressure relief valve 56 connected to the air outlet pipe 55. During the pressure relief process, the end of the guide plate 4 away from the friction block 27 gradually approaches the rotating shaft 3, avoiding the end of the guide plate 4 away from the friction block 27 being squeezed by the opening of the ball valve and pressed against the surface of the rotating shaft 3 in an instant, making the guiding effect worse. It should be pointed out that a magnetic block is provided at the end of the guide plate 4 away from the friction block 27, which continuously generates attraction with the rotating shaft 3 made of magnetic metal. When the turntable 24 rotates, under the action of centrifugal force, the end of the guide plate 4 away from the friction block 27 is thrown away from the rotating shaft 3, and then approaches the rotating shaft 3 again when the turntable 24 stops rotating, maintaining its inclination relative to the rotating shaft 3.

[0047] A plurality of air pumps 57 are arranged in a ring shape on one side of the receiving plate 22 facing the turntable 24, and an air guide pipe 58 is arranged at the output end of the air pump 57. When the motor 23 controls the turntable 24 to rotate and then brake, the plurality of air inlet heads 54 are connected and sealed with the air outlets of the plurality of air guide pipes 58; when the turntable 24 is driven to separate from the inside of the ball valve and return to its initial position, the air inlet heads 54 are connected and sealed with the air outlets of the air guide pipes 58; the air pump 57 inflates the air cylinder 5 through the air guide pipe 58 and the air inlet pipe 53, so that the piston 51 in the air cylinder 5 is reset to meet the next use.

[0048] A rectangular notch 42 is provided on the side of the receiving plate 4, and a rotating belt 43 is inserted into the inside of the rectangular notch 42, with a part of the rotating belt 43 being inside the rectangular notch 42 and the other part being outside the rectangular notch 42; when the side of the receiving plate 4 contacts the opening of the ball valve, the rotating belt 43 on the receiving plate 4 will contact the opening of the ball valve instead of the side of the receiving plate 4, and as the receiving plate 4 moves toward the inside of the ball valve, the rotating belt 43 rotates, thereby preventing the ball valve from being rubbed by the side of the receiving plate 4, thereby preventing friction scratches on the opening of the ball valve.

[0049] like Figures 11 to 13 As shown, a receiving plate 6 is provided on the side of the conveyor 1 away from the fixed plate 2, and a pair of positioning plates 61 are provided on the end of the receiving plate 6 close to the conveyor 1, and a baffle 62 is rotatably provided between the pair of positioning plates 61, and the baffle 62 is attached to the side of the conveyor belt on the conveyor 1; a pair of springs 63 are provided between the baffle 62 and the top of the receiving plate 6; during detection, the baffle 62 is required to block the bottom end of the ball valve ball to prevent the ball valve ball from being pushed away from the detection position when the side of the receiving plate 4 squeezes the opening of the ball valve ball.

[0050] A buffer notch 64 is provided at the bottom end of the baffle 62 on one side close to the conveyor 1, and the top end of the buffer notch 64 is located above the conveyor belt on the conveyor 1; for the ball valve ball that fails the inspection, the hydraulic cylinder 21 cooperates with the rotating shaft 3 to push it away from the conveyor 1. Specifically, the rotating shaft 3 pushes the ball valve ball, and the ball valve ball further squeezes the baffle 62, the baffle 62 rotates, and the spring 63 at the bottom end of the baffle 62 bends. When the ball valve ball passes over the baffle 62, the baffle 62 is reset, and the ball valve ball enters the receiving plate 6 to complete the unloading; the whole process is automated through external computer control; and when the baffle 62 rotates, the buffer notch 64 reserves space for the bottom end of the baffle 62 to rotate, so as to avoid interference caused by the bottom end of the baffle 62 pressing against the bracket of the conveyor 1.

[0051] A plurality of receiving rollers are arranged at the top of the receiving plate 6, which facilitates the movement of the ball valve and prevents the plurality of ball valve balls from piling up and hindering the subsequent unloading.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A ball valve wear resistance detection device, characterized in that: The conveyor (1) comprises a support and a conveyor belt; a fixing plate (2) is provided at the top of the conveyor (1) and on one side of the conveyor belt; a hydraulic cylinder (21) is provided on the side of the fixing plate (2) away from the conveyor belt; an output end of the hydraulic cylinder (21) passes through the fixing plate (2); and a receiving plate (22) is provided at the end of the output end of the hydraulic cylinder (21); A motor (23) is arranged on the side of the receiving plate (22) away from the hydraulic cylinder (21), a rotating disk (24) is arranged at the end of the output end of the motor (23), a plurality of rectangular grooves (25) are evenly arranged in a ring shape on the side of the rotating disk (24) away from the motor (23), a guide rod (26) is arranged inside the rectangular groove (25), one end of the guide rod (26) is located inside the rectangular groove (25), and the other end passes through the outside of the rectangular groove (25), and a friction block (27) is arranged at the end of the guide rod (26) located outside the rectangular groove (25); A rotating shaft (3) is rotatably connected to the center of a side of the rotating disk (24) away from the motor (23); a gravity member (33) is provided at one end of the rotating shaft (3) away from the rotating disk (24); a sleeve ring (31) is sleeved at one end of the rotating shaft (3) close to the rotating disk (24); and a plurality of cameras (32) are evenly arranged on the surface of the sleeve ring (31); The side of the friction block (27) away from the motor (23) is rotatably connected to a guide plate (4), and one end of the guide plate (4) away from the friction block (27) is tilted and points toward the center line of the rotating disk (24); a linkage plate (41) is provided on the side of the guide plate (4) close to the rotating disk (24); A plurality of air cylinders (5) are provided in an annular shape on one side of the rotating disk (24) facing the linkage plate (41); a piston (51) is slidably connected to the inside of the air cylinder (5); a squeeze rod (52) is provided on the side of the piston (51) facing the outside of the air cylinder (5); an end of the squeeze rod (52) away from the piston (51) contacts the side of the linkage plate (41); an air intake pipe (53) is provided on the side of the air cylinder (5); an air intake head (54) is provided on the side of the air intake pipe (53) away from the air cylinder (5); a one-way valve is provided inside the air intake head (54); the air cylinder (55) is provided with a plurality of air cylinders (5) in an annular shape; a piston (51) is slidably connected to the inside of the air cylinder (5); a squeeze rod (52) is provided on the side of the piston (51) facing the outside of the air cylinder (5); an end of the squeeze rod (52) away from the piston (51) contacts the side of the linkage plate (41); an air intake pipe (53) is provided on the side of the air intake pipe (53) away from the air cylinder (5); a one-way valve is provided inside the air intake head (54); (5) A side of the side away from the air inlet pipe (53) is connected to an air outlet pipe (55), and an end of the air outlet pipe (55) away from the air cylinder (5) is connected to a pressure relief valve (56), and the pressure relief valve (56) is installed on the side of the turntable (24); a plurality of air pumps (57) are arranged in a ring shape on the side of the receiving plate (22) facing the turntable (24), and an air guide pipe (58) is arranged at the output end of the air pump (57), and when the motor (23) controls the turntable (24) to rotate and brake, the plurality of air inlet heads (54) and the air outlets of the plurality of air guide pipes (58) are butted and sealed.

2. A ball valve wear resistance detection device according to claim 1, characterized in that: The gravity member (33) comprises a telescopic rod (331) and a brake block (332); a shell portion of the telescopic rod (331) is mounted on the surface of the rotating shaft (3), and the bottom end of the output end of the telescopic rod (331) is connected to the brake block (332).

3. A ball valve wear resistance detection device according to claim 1, characterized in that: Sandpaper can be attached to the surface of the friction block (27).

4. A ball valve wear resistance detection device according to claim 1, characterized in that: A rectangular notch (42) is provided on the side of the receiving plate (4), a rotating belt (43) is inserted into the interior of the rectangular notch (42), a part of the rotating belt (43) is inside the rectangular notch (42), and another part is outside the rectangular notch (42).

5. A ball valve wear resistance detection device according to claim 4, characterized in that: A receiving plate (6) is provided on one side of the conveyor (1) away from the fixed plate (2); a pair of positioning plates (61) are provided on one end of the receiving plate (6) close to the conveyor (1); a baffle (62) is rotatably provided between the pair of positioning plates (61); the baffle (62) is attached to the side of the conveyor belt on the conveyor (1); and a pair of springs (63) are provided between the baffle (62) and the top end of the receiving plate (6).

6. A ball valve wear resistance detection device according to claim 5, characterized in that: A buffer notch (64) is provided at the bottom end of one side of the baffle plate (62) close to the conveyor (1), and the top end of the buffer notch (64) is located above the conveyor belt on the conveyor (1).

7. A ball valve wear resistance detection device according to claim 6, characterized in that: A plurality of receiving rollers are arranged at the top end of the receiving plate (6).

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