High-speed transmission shaft moving joint cylindrical shell internal and external injury detection equipment

Abstract

The invention relates to internal and external injury detection equipment, and discloses high-speed transmission shaft moving joint cylindrical shell internal and external injury detection equipment, which comprises a conveying belt, a flaw detection mechanism arranged on the conveying belt, a box shell arranged on the conveying belt, a cleaning mechanism arranged in the box shell, and a manipulator assembly arranged at the top of the conveying belt and positioned in the box shell, the cleaning mechanism comprises a plate table, a hole is formed in the top of the plate table, a hollow stand is fixedly connected to the inner wall of the hole, a liquid collecting shell is fixedly connected to the bottom of the hollow stand, a top cover shell is arranged at the top of the hollow stand, a self-rotating type inner spray head is arranged in the liquid collecting shell, and an annular self-rotating spray head is arranged in the top cover shell. By arranging the cleaning mechanism, the device can be used for cleaning and decontaminating before flaw detection is carried out on the cylindrical shell, the situation that stains on the surface of the cylindrical shell interfere flaw detection and affect the detection result is effectively avoided, and the interior and the exterior of the cylindrical shell can be cleaned at the same time through a self-rotating type inner spray head and an annular self-rotating spray head of the cleaning mechanism.

Description

Technical Field

[0001] The present invention relates to flaw detection equipment, and more particularly to an internal and external flaw detection equipment for the cylindrical shell of a high-speed drive shaft movable joint. Background Art

[0002] In modern automotive drive systems, the high-speed drive shaft movable joint (constant velocity joint) plays a crucial role. It allows the drive shaft to flexibly adjust the angle during vehicle driving according to the changes in the steering and suspension systems, thus ensuring smooth power transmission. During the production process, the cylindrical shell of the movable joint (i.e., the outer star wheel of the constant velocity joint) needs to be processed through multiple processes, including casting, heat treatment, machining, etc. These processes may cause defects such as cracks, wear, and corrosion on the inner and outer surfaces of the cylindrical shell. Therefore, after production, strict internal and external flaw detection of the cylindrical shell is an important link to ensure product quality and reliability. The flaw detection process uses an electromagnetic flaw detection device (adopting the principle of electromagnetic induction, detecting defects inside the cylindrical shell by emitting electromagnetic waves and receiving their reflected signals) and an ultrasonic flaw detection device (adopting the characteristics of ultrasonic waves propagating inside an object, detecting defects inside the cylindrical shell by emitting ultrasonic waves and receiving their reflected or transmitted signals) to detect defects inside or on the surface of the cylindrical shell.

[0003] After production, dirt and impurities often adhere to the inner and outer surfaces of the existing cylindrical shells of movable joints. However, during the flaw detection process, the presence of dirt may have various adverse effects. For example, it may cause the sensor of the flaw detector to be unable to accurately receive the reflected or transmitted signals inside the product due to the influence of dirt. Some dirt may absorb ultrasonic waves, preventing the ultrasonic waves from penetrating into the inner part of the outer star wheel. In addition, the dirt may also cover up the tiny defects on the surface of the outer star wheel, thus affecting the flaw detection results. Currently, some flaw detection lines are combined with cleaning lines to solve the problem of dirt influence, but it is still difficult to achieve a comprehensive and effective dirt cleaning effect for specific products of the drive shaft movable joint cylindrical shell, which affects the flaw detection results. Summary of the Invention

[0004] To overcome the above-mentioned defects of the prior art, the present invention provides an internal and external flaw detection equipment for the cylindrical shell of a high-speed drive shaft movable joint to solve the problem that when flaw detection is performed on the cylindrical outer shell of the movable joint as described in the above background art, the dirt on its surface affects the detection results of the flaw detection equipment, resulting in insufficient detection accuracy of the existing flaw detection equipment for the cylindrical shell of the movable joint.

[0005] The present invention provides the following technical solution: An internal and external flaw detection equipment for the cylindrical shell of a high-speed drive shaft movable joint, including a conveyor belt, a flaw detection mechanism is arranged on the conveyor belt, a box shell is arranged on the conveyor belt, a cleaning mechanism is arranged inside the box shell, and a manipulator assembly is installed at the top of the conveyor belt inside the box shell; The cleaning mechanism includes a plate table. A hole is formed in the top of the plate table, and a hollow platform is fixedly connected to the inner wall of the hole. A liquid collecting shell is fixedly connected to the bottom of the hollow platform. A top cover shell is arranged on the top of the hollow platform. A self-rotating inner spray head is arranged inside the liquid collecting shell. A ring-shaped self-rotating spray head is arranged inside the top cover shell. Gas-liquid supply mechanisms and lifting components are installed on the side walls of the top cover shell and the liquid collecting shell respectively. The output ends of the two lifting components are respectively docked with the self-rotating inner spray head and the ring-shaped self-rotating spray head. The output ends of the two gas-liquid supply mechanisms are respectively docked with the self-rotating inner spray head and the ring-shaped self-rotating spray head. A lifting arm component is installed on the top of the plate table, and the output end of the lifting arm component is docked with the top of the top cover shell; The two lifting components cooperate with the self-rotating inner spray head and the ring-shaped self-rotating spray head to control the gas-liquid output switching of the two gas-liquid supply mechanisms.

[0006] Furthermore, a top pin is fixedly connected to the top inner wall of the top cover shell. The top pin cooperates with the hollow platform to clamp the cleaning workpiece.

[0007] Furthermore, the ring-shaped self-rotating spray head includes a ring-shaped box. An annular groove communicating with the inside is arranged on the inner wall of the ring-shaped box. A rotating wall is rotatably sleeved in the annular groove. A plurality of first inclined nozzles are arranged on the side wall of the rotating wall. The first inclined nozzles and the inner wall of the rotating wall have an included angle greater than 90°.

[0008] Furthermore, the self-rotating inner spray head includes a connecting frame. A vertical pipe is fixedly installed on the top of the connecting frame. A rotating cap head is rotatably sleeved at the top end of the vertical pipe. A plurality of second inclined nozzles are arranged on the side wall of the rotating cap head. The included angle between the second inclined nozzles and the side wall of the rotating cap head is greater than 90°. A top nozzle is arranged on the top of the rotating cap head; The lifting arm component includes a vertical plate. A first electric cylinder is fixedly installed on the front of the vertical plate. The output end of the first electric cylinder is fixedly connected with a connecting arm. A telescopic rod is installed on the back of the vertical plate. The output end of the telescopic rod is fixedly connected with the bottom of the connecting arm. A connecting rod is fixedly connected to the bottom of the connecting arm. The bottom end of the connecting rod is fixedly connected with the top of the top cover shell.

[0009] Furthermore, the lifting component includes a second electric cylinder. The output end of the second electric cylinder is connected with a transmission rod through a connecting block. The transmission rods of the two lifting components respectively penetrate through the top and bottom of the top cover shell and the liquid collecting shell and are connected with the ring-shaped self-rotating spray head and the self-rotating inner spray head.

[0010] Furthermore, the gas-liquid supply mechanism includes a liquid-connected telescopic tube valve and a gas-connected telescopic tube valve. The output ends of the liquid-connected telescopic tube valve and the gas-connected telescopic tube valve of the two gas-liquid supply mechanisms are respectively connected to the annular self-spinning nozzle and the annular self-spinning nozzle. The top end of the liquid-connected telescopic tube valve is connected to the high-pressure liquid supply mechanism through a liquid-passing hose, and the top end of the gas-connected telescopic tube valve is connected to the high-pressure gas supply mechanism through a ventilation hose. The liquid-connected telescopic tube valve and the gas-connected telescopic tube valve have the same structure. When the liquid-connected telescopic tube valve is extended to the maximum length, the valve is closed, and when it is contracted to the shortest length, the valve is open. The valve state of the gas-connected telescopic tube valve is opposite to that of the liquid-connected telescopic tube valve.

[0011] Furthermore, the self-spinning inner nozzle is connected to the liquid-connected telescopic cylinder valve and the gas-connected telescopic cylinder valve of the gas-liquid supply mechanism through a three-way pipe.

[0012] Furthermore, the liquid-connected telescopic cylinder valve includes an outer cylinder, and the top and bottom of the gas-connected telescopic cylinder valve are both provided with through holes, an inner cylinder is slidably sleeved in the through hole at the bottom of the outer cylinder, a rotary valve is installed in the through hole at the top of the outer cylinder, a rotating frame docked with the rotary valve is provided inside the outer cylinder, a linkage touch plate for triggering the rotation and reset of the rotating frame is installed at the top of the side wall of the inner cylinder, a telescopic bellows is fixedly connected to the bottom end of the rotary valve, and the bottom end of the telescopic bellows is rotatably sleeved on the top of the inner cavity of the rotating frame.

[0013] Furthermore, the rotating frame includes a top rotating cylinder and a bottom rotating cylinder, and the top rotating cylinder and the bottom rotating cylinder are fixedly connected by a plurality of middle rods. The bottom end of the top rotating cylinder is provided with a slope groove 1, and the top end of the bottom rotating cylinder is provided with a slope groove 2 opposite to the slope groove 1. The linkage touch plate includes an end plate, and the top and bottom of the end plate are fixedly connected with abutment protrusions, and the end plate is fixedly connected to the top end of the side wall of the inner moving cylinder.

[0014] Furthermore, the rotary valve comprises a fixed valve plate, a movable valve plate is attached to the bottom of the fixed valve plate, and a plurality of through holes are arranged at eccentric positions on the tops of the fixed valve plate and the movable valve plate.

[0015] Technical effects and advantages of the present invention: The present invention is provided with a cleaning mechanism, which enables the device to clean and decontaminate before flaw detection of the cylindrical shell, effectively avoiding interference of flaw detection with stains on the surface of the cylindrical shell and affecting the detection result. The self-spinning inner nozzle and the annular self-spinning nozzle of the cleaning mechanism can clean the inside and outside of the cylindrical shell at the same time, and cooperate with the structural characteristics of the two lifting components and the self-spinning inner nozzle and the annular self-spinning nozzle to facilitate all-round decontamination of the cylindrical shell and avoid the existence of a cleaning blind area. On this basis, two gas-liquid supply mechanisms are provided. The liquid-connected telescopic cylinder valve and the gas-connected telescopic cylinder valve of the gas-liquid supply mechanism are respectively connected to the high-pressure liquid supply mechanism and the high-pressure gas supply mechanism. When the self-rotating inner nozzle and the annular self-rotating nozzle perform liquid spraying and cleaning, they can also perform air jetting to precisely air-dry the cylindrical shell in all directions. Moreover, the blowing effect can help blow out the impurities and stains in the gaps of the cylindrical shell, enhancing the cleaning effect. The structures of the liquid-connected telescopic cylinder valve and the gas-connected telescopic cylinder valve are further optimized. Through the rotating frame and the linkage touch plate, the gas-liquid supply mechanism can realize the automatic switching from liquid spraying and cleaning to air jetting and air-drying of the self-rotating inner nozzle and the annular self-rotating nozzle under the lifting action of the self-rotating inner nozzle and the annular self-rotating nozzle, improving the automation effect of the device. Brief Description of the Drawings

[0016] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 of the present invention Figure 1 is the internal structural schematic diagram of the box shell in the present invention; Figure 3 of the present invention Figure 2 is the exploded structural schematic diagram of the cleaning mechanism in the present invention; Figure 4 of the present invention Figure 3 is the enlarged structural schematic diagram at A in the present invention; Figure 5 of the present invention Figure 4 is the exploded structural schematic diagram of the annular self-rotating nozzle in the present invention; Figure 6 of the present invention Figure 4 is the exploded structural schematic diagram of the self-rotating inner nozzle in the present invention; Figure 7 of the present invention Figure 4 is the structural schematic diagram of the lifting arm assembly in the present invention; Figure 8 of the present invention Figure 4 is the structural schematic diagram of the gas-liquid supply mechanism in the present invention; Figure 9 of the present invention Figure 8 is the exploded structural schematic diagram of the liquid-connected telescopic cylinder valve in the present invention; Figure 10 of the present invention Figure 9 is the structural schematic diagram of the rotary valve in the present invention.

[0017] The reference numerals are: 1, conveyor belt; 2, flaw detection mechanism; 3, box shell; 4, cleaning mechanism; 5, manipulator assembly; 41, plate platform; 42, hollow platform; 43, top cover shell; 44, liquid collection shell; 45, lifting and lowering arm assembly; 46, gas-liquid supply mechanism; 47, spin type inner spray head; 48, annular spin spray head; 49, lifting and lowering assembly; 410, three-way pipe; 411, ejector pin; 481, annular box; 482, rotating wall; 483, inclined nozzle I; 471, connecting frame; 472, riser pipe; 473, rotating cap head; 474, inclined nozzle II; 475, top nozzle; 451, vertical plate; 452, electric cylinder I; 453, telescopic rod; 454, connecting arm; 455, connecting rod; 460, liquid connection telescopic cylinder valve; 461, gas connection telescopic cylinder valve; 462, liquid connection hose; 463, gas connection hose; 464, outer cylinder; 465, rotary valve; 466, inner moving cylinder; 467, rotating frame; 468, linkage contact plate; 469, telescopic bellows; 4671, top rotating cylinder; 4672, bottom rotating cylinder; 4673, middle rod; 4681, end plate; 4682, abutting convex block; 4651, fixed valve plate; 4652, moving valve plate; 491, electric cylinder II; 492, connecting block; 493, transmission rod. Detailed implementation manners

[0018] The following will describe in detail the specific implementation manners of the present invention with reference to the accompanying drawings.

[0019] Refer to Figures 1-4 , the present invention provides a high-speed drive shaft moving joint cylindrical shell internal and external flaw detection device, including a conveyor belt 1, a flaw detection mechanism 2 is arranged on the conveyor belt 1, a box shell 3 is arranged on the conveyor belt 1, a cleaning mechanism 4 is arranged inside the box shell 3, and a manipulator assembly 5 is installed inside the box shell 3 at the top of the conveyor belt 1; The cleaning mechanism 4 includes a plate platform 41, a hole is opened at the top of the plate platform 41, the inner wall of the hole is fixedly connected with a hollow platform 42, the bottom of the hollow platform 42 is fixedly connected with a liquid collection shell 44, a top cover shell 43 is arranged at the top of the hollow platform 42, a spin type inner spray head 47 is arranged inside the liquid collection shell 44, an annular spin spray head 48 is arranged inside the top cover shell 43, gas-liquid supply mechanisms 46 and lifting and lowering assemblies 49 are installed on the side walls of the top cover shell 43 and the liquid collection shell 44 respectively, the output ends of the two lifting and lowering assemblies 49 are respectively docked with the spin type inner spray head 47 and the annular spin spray head 48, the output ends of the two gas-liquid supply mechanisms 46 are respectively docked with the spin type inner spray head 47 and the annular spin spray head 48, a lifting and lowering arm assembly 45 is installed at the top of the plate platform 41, and the output end of the lifting and lowering arm assembly 45 is docked with the top of the top cover shell 43; The two lifting and lowering assemblies 49 cooperate with the spin type inner spray head 47 and the annular spin spray head 48 to control the gas-liquid output switching of the two gas-liquid supply mechanisms 46.

[0020] The cylindrical shell of the product to be detected is conveyed through the conveyor belt 1. First, the product enters the inside of the box shell 3 and is grabbed by the manipulator assembly 5 and then placed on the cleaning mechanism 4 for cleaning. After cleaning, the product is grabbed by the manipulator assembly 5 again and input into the flaw detection mechanism 2 through the conveyor belt 1 for detection, thus avoiding the influence of impurities on the product surface on the flaw detection. During cleaning, the cylindrical shell is placed on the top of the hollow platform 42. The inner surface and outer surface of the cylindrical shell are simultaneously cleaned by the self-rotating inner nozzle 47 and the annular self-rotating nozzle 48. During the cleaning process, the self-rotating inner nozzle 47 and the annular self-rotating nozzle 48 rotate, and two lifting components 49 are used to control the lifting of the self-rotating inner nozzle 47 and the annular self-rotating nozzle 48, so that the cleaning mechanism 4 can achieve a full-range cleaning effect on the inside and outside of the cylindrical shell, avoiding cleaning blind spots. During the cleaning process, under the action of the top cover shell 43 and the liquid collecting shell 44, the cylindrical shell is cleaned in a closed state to prevent liquid leakage. In addition, through two gas-liquid supply mechanisms 46, the self-rotating inner nozzle 47 and the annular self-rotating nozzle 48 can be switched between liquid spraying and gas spraying, so that while achieving full-range cleaning of the cylindrical shell, a full-range air-drying effect can also be achieved, avoiding the influence of liquid attached to the product surface after cleaning on subsequent detection, and the gas spraying effect also helps to blow out impurities and dirt in the surface gaps of the cylindrical shell, enhancing the dirt treatment effect.

[0021] Refer to Figure 4 , a top pin 411 is fixedly connected to the top of the inner wall of the top cover shell 43. The top pin 411 and the hollow platform 42 are used to clamp the cleaning workpiece.

[0022] When the cylindrical shell is cleaned by the self-rotating inner nozzle 47 and the annular self-rotating nozzle 48, the cylindrical shell is prone to shift due to the impact force. By setting the top pin 411 and the hollow platform 42 to clamp the cylindrical shell, the stability is improved.

[0023] Refer to Figure 5 , the annular self-rotating nozzle 48 includes an annular box 481. An annular groove communicating with the inside is provided on the inner wall of the annular box 481. A rotating wall 482 is rotatably sleeved in the annular groove. A number of first inclined nozzles 483 are provided on the side wall of the rotating wall 482. The first inclined nozzles 483 and the inner wall of the rotating wall 482 have an angle greater than 90°.

[0024] When the gas-liquid supply mechanism 46 outputs gas-liquid, it enters the inside of the annular box 481, and the gas-liquid is ejected through the first inclined nozzles 483. Since the angle between the first inclined nozzles 483 and the inner wall of the rotating wall 482 is greater than 90°, that is, the ejection direction of the first inclined nozzles 483 deviates from the center line of the rotating wall 482, the first inclined nozzles 483 have a rotating driving force on the rotating wall 482 when ejecting, thus achieving the self-rotation effect of the annular self-rotating nozzle 48.

[0025] Refer to Figure 6, the spin-type inner spray head 47 includes a connecting frame 471. A riser pipe 472 is fixedly installed at the top of the connecting frame 471. A swivel head 473 is rotatably sleeved at the top end of the riser pipe 472. A plurality of second inclined nozzles 474 are arranged on the side wall of the swivel head 473. The included angle between the second inclined nozzles 474 and the side wall of the swivel head 473 is greater than 90°. A top nozzle 475 is arranged at the top of the swivel head 473; The lifting and lowering arm assembly 45 includes a vertical plate 451. A first electric cylinder 452 is fixedly installed on the front surface of the vertical plate 451. The output end of the first electric cylinder 452 is fixedly connected with a connecting arm 454. A telescopic rod 453 is installed on the back of the vertical plate 451. The output end of the telescopic rod 453 is fixedly connected with the bottom of the connecting arm 454. A connecting rod 455 is fixedly connected to the bottom of the connecting arm 454. The bottom end of the connecting rod 455 is fixedly connected to the top of the top cover 43.

[0026] The gas-liquid output by the gas-liquid supply mechanism 46 enters the interior of the riser pipe 472. The gas-liquid enters the interior of the swivel head 473 through the riser pipe 472. Since the included angle between the second inclined nozzles 474 and the side wall of the swivel head 473 is greater than 90°, that is, it is in an inclined state. When the second inclined nozzles 474 spray, the reverse driving force generated drives the swivel head 473 to rotate, so as to achieve the spin effect of the spin-type inner spray head 47; The first electric cylinder 452 outputs power to drive the connecting arm 454 to lift and lower. Under the connection effect of the connecting rod 455, the lifting and lowering arm assembly 45 controls the lifting and lowering of the top cover 43. By setting the telescopic rod 453, the stability of the connecting arm 454 during lifting and lowering can be improved.

[0027] Refer to Figure 4 , the lifting and lowering assembly 49 includes a second electric cylinder 491. The output end of the second electric cylinder 491 is connected with a transmission rod 493 through a connecting block 492. The transmission rods 493 of the two lifting and lowering assemblies 49 respectively penetrate the top and bottom of the top cover 43 and the liquid collecting shell 44 and are connected with the annular spin spray head 48 and the spin-type inner spray head 47.

[0028] The second electric cylinder 491 outputs power to control the lifting and lowering of the transmission rod 493 under the connection of the connecting block 492. The transmission rod 493 drives the annular spin spray head 48 and the spin-type inner spray head 47 to lift and lower.

[0029] Refer to Figure 8, the gas-liquid supply mechanism 46 includes a liquid-connected telescopic cylinder valve 460 and a gas-connected telescopic cylinder valve 461. The output ends of the liquid-connected telescopic cylinder valves 460 and the gas-connected telescopic cylinder valves 461 of the two gas-liquid supply mechanisms 46 are respectively docked with the annular self-rotating spray heads 48. The top end of the liquid-connected telescopic cylinder valve 460 is connected to the high-pressure liquid supply mechanism through a liquid connection hose 462, and the top end of the gas-connected telescopic cylinder valve 461 is connected to the high-pressure gas supply mechanism through a gas connection hose 463. The liquid-connected telescopic cylinder valve 460 and the gas-connected telescopic cylinder valve 461 have the same structure. When the liquid-connected telescopic cylinder valve 460 extends to the maximum length, the valve closes, and when it contracts to the shortest length, the valve opens. The valve state of the gas-connected telescopic cylinder valve 461 is opposite to that of the liquid-connected telescopic cylinder valve 460.

[0030] Since the lifting assembly 49 drives the annular self-rotating spray head 48 to lift and lower, when the annular self-rotating spray head 48 lifts and lowers, it drives the liquid-connected telescopic cylinder valve 460 and the gas-connected telescopic cylinder valve 461 to expand and contract. In the initial state, the liquid-connected telescopic cylinder valve 460 and the gas-connected telescopic cylinder valve 461 are at the shortest length. At this time, the valve of the liquid-connected telescopic cylinder valve 460 is open, and the valve of the gas-connected telescopic cylinder valve 461 is closed. That is, the gas-liquid supply mechanism 46 outputs liquid to perform water cleaning on the cylindrical shell. When the lifting assembly 49 operates, the liquid-connected telescopic cylinder valve 460 and the gas-connected telescopic cylinder valve 461 gradually extend until they reach the maximum length, and then the valve states of the liquid-connected telescopic cylinder valve 460 and the gas-connected telescopic cylinder valve 461 are switched. That is, the gas-liquid supply mechanism 46 outputs gas to blow and dry the cylindrical shell.

[0031] Refer to Figure 4 , the self-rotating inner spray head 47 is connected to the liquid-connected telescopic cylinder valve 460 and the gas-connected telescopic cylinder valve 461 of the gas-liquid supply mechanism 46 through a tee pipe 410.

[0032] Since the gas-liquid supply mechanism 46 has two output ends, by setting the tee pipe 410, the liquid-connected telescopic cylinder valve 460, the gas-connected telescopic cylinder valve 461 can be connected to the riser pipe 472 of the self-rotating inner spray head 47.

[0033] Refer to Figure 9 , the liquid-connected telescopic cylinder valve 460 includes an outer cylinder 464. Through holes are provided at the top and bottom of the gas-connected telescopic cylinder valve 461. An inner moving cylinder 466 is slidably sleeved in the through hole at the bottom of the outer cylinder 464. A rotary valve 465 is installed in the through hole at the top of the outer cylinder 464. A rotary frame 467 docked with the rotary valve 465 is arranged inside the outer cylinder 464. A linkage touch plate 468 for triggering the rotation and reset of the rotary frame 467 is installed at the top end of the side wall of the inner moving cylinder 466. The bottom end of the rotary valve 465 is fixedly connected to a telescopic bellows 469, and the bottom end of the telescopic bellows 469 is rotatably sleeved at the top end of the inner cavity of the rotary frame 467.

[0034] When the liquid-connected telescopic cylinder valve 460 extends, the inner moving cylinder 466 slides down to drive the linkage contact plate 468 to move downward until the linkage contact plate 468 contacts the lower part of the rotating frame 467, causing the rotating frame 467 to rotate. By rotating the rotating frame 467, the state of the linkage contact plate 468 is switched. After the liquid-connected telescopic cylinder valve 460 retracts, the linkage contact plate 468 contacts the upper part of the rotating frame 467 to drive the rotating frame 467 to reset. At this time, the rotation of the rotating frame 467 causes the rotary valve 465 to return to its initial state, thereby achieving the effect of switching the valve state by the expansion and contraction of the liquid-connected telescopic cylinder valve 460. The telescopic bellows 469 is provided to ensure the sealing performance.

[0035] Referring to Figure 9 , the rotating frame 467 includes a top rotating cylinder 4671 and a bottom rotating cylinder 4672. The top rotating cylinder 4671 and the bottom rotating cylinder 4672 are fixedly connected by a number of middle rods 4673. A first slope groove is provided at the bottom end of the top rotating cylinder 4671, and a second slope groove with a direction opposite to that of the first slope groove is provided at the top end of the bottom rotating cylinder 4672. The linkage contact plate 468 includes an end plate 4681, and contact bumps 4682 are fixedly connected to both the top and bottom of the end plate 4681. The end plate 4681 is fixedly connected to the top end of the side wall of the inner moving cylinder 466.

[0036] When the linkage contact plate 468 contacts the lower part of the rotating frame 467, that is, the contact bump 4682 at the bottom of the end plate 4681 abuts against the slope of the second slope groove at the top end of the bottom rotating cylinder 4672. Under the influence of pressure, the contact bump 4682 slides along the slope, causing the bottom rotating cylinder 4672 to rotate. Under the connection effect of the middle rod 4673, the entire rotating frame 467 can be rotated. On the contrary, when the linkage contact plate 468 contacts the upper part of the top rotating cylinder 4671, the top rotating cylinder 4671 is flipped under the pressing of the contact bump 4682 at the top of the end plate 4681, and the entire rotating frame 467 can be flipped and reset.

[0037] Referring to Figure 10 , the rotary valve 465 includes a fixed valve plate 4651, and a moving valve plate 4652 is attached to the bottom of the fixed valve plate 4651. A number of perforations are provided at the eccentric positions of the tops of the fixed valve plate 4651 and the moving valve plate 4652.

[0038] When the rotary valve 465 is triggered, the moving valve plate 4652 rotates while the position of the fixed valve plate 4651 remains unchanged. At this time, a number of perforations on the fixed valve plate 4651 and the moving valve plate 4652 are misaligned, and the moving valve plate 4652 closes the perforations of the fixed valve plate 4651, causing the rotary valve 465 to switch from the valve open state to the closed state.

[0039] The basic principles, main features and advantages of the present invention have been shown and described above. The present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, various changes and improvements will occur to the present invention, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A detection device for internal and external injuries of the cylindrical shell of a high-speed transmission shaft moving joint, including a conveyor belt (1), a flaw detection mechanism (2) is arranged on the conveyor belt (1), and a box shell (3) is arranged on the conveyor belt (1), and it is characterized in that: A cleaning mechanism (4) is arranged inside the box shell (3), and a manipulator assembly (5) is installed inside the box shell (3) at the top of the conveyor belt (1); The cleaning mechanism (4) includes a plate platform (41), a hole is opened at the top of the plate platform (41), a hollow platform (42) is fixedly connected to the inner wall of the hole, a liquid collecting shell (44) is fixedly connected to the bottom of the hollow platform (42), a top cover shell (43) is arranged on the top of the hollow platform (42), a self-rotating inner spray head (47) is arranged inside the liquid collecting shell (44), and an annular self-rotating spray head (48) is arranged inside the top cover shell (43); Gas-liquid supply mechanisms (46) and lifting components (49) are installed on the side walls of the top cover shell (43) and the liquid collecting shell (44). The output ends of the two lifting components (49) are respectively docked with the self-rotating inner spray head (47) and the annular self-rotating spray head (48). The output ends of the two gas-liquid supply mechanisms (46) are respectively docked with the self-rotating inner spray head (47) and the annular self-rotating spray head (48). A lifting arm assembly (45) is installed on the top of the plate platform (41), and the output end of the lifting arm assembly (45) is docked with the top of the top cover shell (43); The two lifting components (49) cooperate with the self-rotating inner spray head (47) and the annular self-rotating spray head (48) to control the gas-liquid output switching of the two gas-liquid supply mechanisms (46).

2. The internal and external injury detection device for the cylindrical shell of the moving joint of a high-speed transmission shaft according to claim 1, characterized in that: A top needle (411) is fixedly connected to the top inner wall of the top cover shell (43), and the top needle (411) cooperates with the hollow platform (42) to clamp the cleaning workpiece.

3. The internal and external injury detection device for the cylindrical shell of the moving joint of a high-speed transmission shaft according to claim 1, characterized in that: The annular self-rotating spray head (48) includes an annular box (481), an annular groove communicating with the inside is arranged on the inner wall of the annular box (481), a rotating wall (482) is rotatably sleeved in the annular groove, a plurality of first inclined nozzles (483) are arranged on the side wall of the rotating wall (482), and the first inclined nozzles (483) and the inner wall of the rotating wall (482) have an included angle greater than 90°.

4. The internal and external injury detection device for the cylindrical shell of the moving joint of a high-speed transmission shaft according to claim 1, wherein: The self-rotating inner spray head (47) includes a connecting frame (471), a vertical pipe (472) is fixedly installed on the top of the connecting frame (471), a rotating cap head (473) is rotatably sleeved at the top of the vertical pipe (472), a plurality of second inclined nozzles (474) are arranged on the side wall of the rotating cap head (473), the included angle between the second inclined nozzles (474) and the side wall of the rotating cap head (473) is greater than 90°, and a top nozzle (475) is arranged on the top of the rotating cap head (473); The lifting and lowering arm assembly (45) includes a vertical plate (451). A first electric cylinder (452) is fixedly installed on the front surface of the vertical plate (451). The output end of the first electric cylinder (452) is fixedly connected to a connecting arm (454). A telescopic rod (453) is installed on the back of the vertical plate (451). The output end of the telescopic rod (453) is fixedly connected to the bottom of the connecting arm (454). A connecting rod (455) is fixedly connected to the bottom of the connecting arm (454). The bottom end of the connecting rod (455) is fixedly connected to the top of the top cover (43).

5. An internal and external injury detection device for the cylindrical shell of a high-speed transmission shaft moving joint according to claim 1, characterized in that: The lifting assembly (49) includes a second electric cylinder (491). The output end of the second electric cylinder (491) is connected to a transmission rod (493) through a connecting block (492). The transmission rods (493) of the two lifting assemblies (49) respectively penetrate through the top and bottom of the top cover (43) and the liquid collecting shell (44) and are connected to an annular self-rotating nozzle (48) and a self-rotating inner nozzle (47).

6. The internal and external injury detection device for the cylindrical shell of the moving joint of a high-speed transmission shaft according to claim 1, characterized in that: The gas-liquid supply mechanism (46) includes a liquid-connected telescopic cylinder valve (460) and a gas-connected telescopic cylinder valve (461). The output ends of the liquid-connected telescopic cylinder valves (460) and the gas-connected telescopic cylinder valves (461) of the two gas-liquid supply mechanisms (46) are respectively docked with the annular self-rotating nozzles (48). The top end of the liquid-connected telescopic cylinder valve (460) is connected to a high-pressure liquid supply mechanism through a liquid connection hose (462). The top end of the gas-connected telescopic cylinder valve (461) is connected to a high-pressure gas supply mechanism through a gas connection hose (463). The liquid-connected telescopic cylinder valve (460) and the gas-connected telescopic cylinder valve (461) have the same structure. When the liquid-connected telescopic cylinder valve (460) extends to the maximum length, the valve is closed, and when it contracts to the shortest length, the valve is opened. The valve state of the gas-connected telescopic cylinder valve (461) is opposite to that of the liquid-connected telescopic cylinder valve (460).

7. An internal and external injury detection device for the cylindrical shell of a high-speed drive shaft moving joint according to claim 6, characterized in that: The self-rotating inner nozzle (47) is connected to the liquid-connected telescopic cylinder valve (460) and the gas-connected telescopic cylinder valve (461) of the gas-liquid supply mechanism (46) through a three-way pipe (410).

8. The internal and external injury detection device for the cylindrical shell of the moving joint of a high-speed transmission shaft according to claim 6, characterized in that: The liquid-connected telescopic cylinder valve (460) includes an outer cylinder (464). Through holes are provided at the top and bottom of the gas-connected telescopic cylinder valve (461). An inner moving cylinder (466) is slidably sleeved in the through hole at the bottom of the outer cylinder (464). A rotary valve (465) is installed in the through hole at the top of the outer cylinder (464). A rotary frame (467) docked with the rotary valve (465) is arranged inside the outer cylinder (464). A linkage touch plate (468) for triggering the rotation and reset of the rotary frame (467) is installed at the top end of the side wall of the inner moving cylinder (466). The bottom end of the rotary valve (465) is fixedly connected to a telescopic bellows (469). The bottom end of the telescopic bellows (469) is rotatably sleeved at the top end of the inner cavity of the rotary frame (467).

9. An internal and external injury detection device for the cylindrical shell of a high-speed drive shaft moving joint according to claim 8, characterized in that: The rotating frame (467) includes a top rotating cylinder (4671) and a bottom rotating cylinder (4672). The top rotating cylinder (4671) and the bottom rotating cylinder (4672) are fixedly connected by a number of middle rods (4673). A first slope groove is provided at the bottom end of the top rotating cylinder (4671), and a second slope groove with a direction opposite to that of the first slope groove is provided at the top end of the bottom rotating cylinder (4672). The linkage contact plate (468) includes an end plate (4681). The top and bottom of the end plate (4681) are fixedly connected with abutting bumps (4682), and the end plate (4681) is fixedly connected to the top end of the side wall of the inner moving cylinder (466).

10. An internal and external injury detection device for the cylindrical shell of the moving joint of a high-speed transmission shaft according to claim 8, characterized in that: The rotary valve (465) includes a fixed valve plate (4651). A moving valve plate (4652) is attached to the bottom of the fixed valve plate (4651). A number of through holes are provided at the eccentric positions at the tops of the fixed valve plate (4651) and the moving valve plate (4652).

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