An ultrasonic flaw detection device for a ship shaft material

Abstract

The present invention provides an ultrasonic flaw detector for ship shaft materials, which relates to the technical field of non-destructive testing. The ultrasonic flaw detector for ship shaft materials includes a base, a fixed seat, a moving seat, a moving frame and an ultrasonic flaw detector. The fixed seat is fixedly installed on the top of the base, the moving seat is slidably installed on the top of the base, the moving frame is slidably installed on the top of the base, and the ultrasonic flaw detector is arranged in the moving frame. Two telescopic rods are rotatably installed on the sides of the fixed seat and the moving seat close to each other, and two rotating wheels are fixedly installed on the outer walls of the two telescopic rods. The ultrasonic flaw detector for ship shaft materials provided by the present invention has the advantages of convenient use, accurate control of the usage amount of the coupling agent, ensuring uniform coating, reducing waste, and facilitating the disassembly and cleaning of the container filled with the coupling agent.

Description

Technical Field

[0001] The present invention relates to the technical field of non-destructive testing, and particularly to an ultrasonic flaw detection device for ship shaft materials. Background Art

[0002] The ship shaft is a key component in the ship propulsion system. Since internal defects such as pores, inclusions, and cracks will occur during the manufacturing process of the ship shaft, and new defects will also appear due to fatigue during long-term use, ultrasonic flaw detection can effectively detect these internal defects, determine their positions, sizes, and shapes, and avoid serious accidents such as shaft fracture during operation.

[0003] When the traditional ultrasonic flaw detection device for ship shaft materials detects the ship shaft materials, the coupling agent is usually directly poured out from a large container for use, and it is easy to pour out too much. Especially when the shape of the flaw detection part is complex and multiple coatings are required, the waste is relatively serious. It is very difficult to accurately control the usage amount of the coupling agent and ensure uniform coating.

[0004] Therefore, it is necessary to provide an ultrasonic flaw detection device for ship shaft materials to solve the above technical problems. Summary of the Invention

[0005] The technical problem solved by the present invention is to provide an ultrasonic flaw detection device for ship shaft materials that is easy to use, can accurately control the usage amount of the coupling agent, ensure uniform coating, reduce waste, and facilitate the disassembly and cleaning of the container filled with the coupling agent.

[0006] To solve the above technical problems, the ultrasonic flaw detector for the ship shaft material provided by the present invention includes: a base, a fixed seat, a moving seat, a moving frame and an ultrasonic flaw detector. The fixed seat is fixedly installed on the top of the base, the moving seat is slidably installed on the top of the base, the moving frame is slidably installed on the top of the base, and the ultrasonic flaw detector is arranged in the moving frame. On one side of the fixed seat and the moving seat close to each other, two telescopic rods are rotatably installed. On the outer walls of the two telescopic rods, two rotating wheels are fixedly installed. In the moving frame, a lifting plate is slidably installed. At the bottom of the lifting plate, a centralized box is fixedly installed. The ultrasonic flaw detector is fixedly installed on one side of the centralized box. At the bottom of the centralized box, a leak-proof plate is hermetically arranged. On the inner wall of the top of the centralized box, a rotating seat is rotatably installed. At the bottom of the rotating seat, a fourth screw rod is installed. On the top of the centralized box, a third motor is fixedly installed. The output shaft of the third motor is fixedly connected to the rotating seat. In the centralized box, a pressing plate is slidably installed. The pressing plate is threadedly connected to the fourth screw rod. Two porous cylinders penetrate through and are slidably and hermetically installed on the leak-proof plate. In each of the two porous cylinders, a first mounting plate is fixedly installed. On the first mounting plate, first balls are arranged. Both the porous cylinder and the first mounting plate are provided with a plurality of flow ports. At the bottom of the leak-proof plate, a plastic scraping plate is fixedly installed. On one side of the centralized box, a water pump is fixedly installed. The water outlet end of the water pump is fixedly installed with a one-way valve. One end of the one-way valve is fixedly connected to the centralized box. The water inlet end of the water pump is fixedly installed with a second rigid pipe. On the top of the base, a first box body is fixedly installed. On one side of the base, a valve is provided. One end of a hose is provided at the water outlet end of the valve, and the other end of the hose is arranged on the second rigid pipe.

[0007] Preferably, a second screw rod is rotatably installed on the base. One end of the bottom of the moving frame is threadedly connected to the second screw rod. On one side of the base, a second motor is fixedly installed. The output shaft of the second motor is fixedly connected to one end of the second screw rod. A first screw rod is also rotatably installed on the base. The bottom of the moving seat is threadedly connected to the first screw rod. On the base, a first motor is fixedly installed. The output shaft of the first motor is fixedly connected to one end of the first screw rod.

[0008] Preferably, a third screw rod is provided at the top of the moving frame. The bottom end of the third screw rod extends into the moving frame and is rotatably installed on the top of the lifting plate. The third screw rod is threadedly connected to the moving frame. At the top end of the third screw rod, a round-edge handwheel is fixedly installed.

[0009] Preferably, the first mounting plate is provided with a first pocket hole. The first balls are movably inserted into the first pocket holes. A first spring is sleeved outside the porous cylinder. The two ends of the first spring are respectively fixedly installed on the leak-proof plate and the porous cylinder.

[0010] Preferably, a first rigid pipe is arranged in the first box body, and the other end of the first rigid pipe extends outside the first box body and is fixedly connected to the first water inlet end of the valve.

[0011] Preferably, a T-shaped groove is arranged at the bottom of the lifting plate, a T-shaped fixing plate is fixedly installed at the top of the centralized box, the T-shaped fixing plate is adapted to the T-shaped groove, a connecting shaft is fixedly installed at the top end of the fourth screw rod, a guiding strip is integrally formed on the outer wall of the connecting shaft, a circular clamping hole is arranged at the bottom of the rotating seat, limiting grooves are arranged on both sides of the circular clamping hole, the top end of the connecting shaft extends into the circular clamping hole, and the guiding strip is adapted to the limiting groove. A ball seat is fixedly installed at the bottom end of the connecting shaft, a second mounting plate is fixedly installed in the ball seat, a second ball is arranged on the second mounting plate, a contact seat is fixedly installed at the top of the leak-proof plate, the second ball is in contact with the contact seat, limiting blocks are fixedly installed on both sides of the leak-proof plate, U-shaped clamping seats are fixedly installed on both sides of the centralized box, the top ends of the limiting blocks extend into the U-shaped clamping seats, communication clamping holes are arranged on the U-shaped clamping seats and the limiting blocks, a clamping rod is arranged in the communication clamping hole, a first inclined surface is arranged at one end of the clamping rod, a second inclined surface is further arranged on the inner wall of the top of the communication clamping hole on the limiting block, the first inclined surface is adapted to the second inclined surface, a plurality of second threaded holes and a plurality of first threaded holes are respectively arranged on the clamping rod and the U-shaped clamping seat, and the plurality of second threaded holes and the plurality of first threaded holes are adapted to each other. A same threaded bolt is arranged in the first threaded hole and the second threaded hole.

[0012] Preferably, a second pocket hole is arranged on the second mounting plate, and the second ball is movably inserted into the second pocket hole.

[0013] Preferably, an arc-shaped collecting plate is fixedly installed at the bottom of the fixing seat, a third box body is fixedly installed at the top of the base, a first opening is formed at the top of the third box body, a double-pass box is rotatably installed on the third box body, first fixing rods are integrally formed on both sides of the double-pass box, a fifth motor is fixedly installed at the top of the third box body, an output shaft of the fifth motor is fixedly connected to one end of the first fixing rod, a dust-proof plate is installed in the first opening, second fixing rods are integrally formed on both sides of the dust-proof plate, and one ends of the two second fixing rods away from each other are respectively rotatably connected to inner walls on both sides of the first opening. A second gear is fixedly installed on an outer wall of the corresponding second fixing rod, a third fixing rod is rotatably installed at the top of the third box body, a first gear is fixedly installed at one end of the third fixing rod, the first gear meshes with the second gear, pulley wheels are fixedly installed on outer walls of the first fixing rod and the third fixing rod, and the same belt is sleeved outside the two pulley wheels. A movable frame is slidably installed in the double-pass box, two second filter meshes are hinged to an inner wall on one side of the movable frame, two limiting strips are fixedly installed on an inner wall of the movable frame, grooves are formed in both the two limiting strips, movable plates are slidably installed in the grooves, pressure sensors are fixedly installed in the grooves, a bottom of the second filter mesh contacts a top of the movable plate, second openings are formed in both sides of the movable frame, first filter meshes are fixedly installed in the second openings, a fourth box body is further fixedly installed at the top of the base, a garbage storage box is arranged in the fourth box body, one end of a spray pipe is fixedly installed in the fourth box body, and the other end of the spray pipe extends outside the fourth box body. A third rigid pipe is arranged in the third box body, and one end of the third rigid pipe extends outside the third box body and is fixedly connected to a second water inlet end of the valve.

[0014] Preferably, one ends of two third springs are fixedly installed at a bottom of the movable plate, and the other ends of the two third springs are fixedly installed on the limiting strips.

[0015] Preferably, a sewage discharge pipe is fixedly installed on one side of the fourth box body, and a plurality of filter holes are formed in a bottom of the garbage storage box.

[0016] Compared with the related art, the ultrasonic flaw detection device for the ship shaft material provided by the present invention has the following beneficial effects:

[0017] By cooperating the first box body, the first rigid pipe, the valve, the flexible pipe, the second rigid pipe, the water pump, the pressing plate, the fourth screw rod, the first spring, the first ball and the porous cylinder, the present invention provides an ultrasonic flaw detection device for ship shaft materials. By this, it can accurately extrude an appropriate amount of coupling agent according to the actual needs of the flaw detection part, avoiding the waste phenomenon that may occur in the traditional method, reducing the cost, and the flaw detection personnel do not need to frequently go to the large cylinder to get the coupling agent. Especially in the case of narrow space or special position of the ship shaft, it can reduce the operation time and difficulty and improve the work efficiency; By cooperating the fixed seat, the rotating wheel, the telescopic rod, the moving seat, the first screw rod and the first motor, since the lengths of the ship shafts of different ships are different, the ultrasonic flaw detector can adapt to ship shafts of various lengths without specially customizing an ultrasonic flaw detector for each ship shaft, and can also accurately adjust the position of the ultrasonic flaw detector according to the length of the ship shaft, so that the ultrasonic probe can better couple with the ship shaft, ensuring that the ultrasonic wave can be evenly and accurately transmitted and received;

[0018] By cooperating the third motor, the rotating seat, the pressing plate, the fourth screw rod, the ball seat clamp, the second ball, the contact seat, the circular card hole, the connecting shaft and the guiding strip, when the pressing plate descends, it can continuously apply a downward pressure to the coupling agent, so that the coupling agent can be stably extruded from the centralized box during use, avoiding the situation of unsmooth extrusion or unstable flow rate caused by factors such as uneven self-gravity distribution of the coupling agent or deformation of the centralized box. The pressing plate can also fully extrude the coupling agent to the outlet of the cylinder body, making the coupling agent in the cylinder be used more thoroughly and reducing the residue; By cooperating the first threaded hole, the threaded bolt, the limiting block, the clamping rod, the second threaded hole and the U-shaped seat clamp, the structure in the centralized box can be regularly disassembled for thorough cleaning, preventing the coupling agent residue from drying and adhering to the inner wall of the centralized box, avoiding its pollution to the subsequent used coupling agent, ensuring the purity and performance of the coupling agent, and avoiding the chemical components in the residual coupling agent from corroding or causing other damages to the material of the centralized box, thereby prolonging the service life of the centralized box;

[0019] By cooperating the arc-shaped collecting plate, the third box body, the double-pass box, the movable frame and the first box body, it can collect the dripping coupling agent and extract and use it when needed, enabling the coupling agent to be fully utilized and reducing the waste caused by accidental dripping of the coupling agent. When the coupling agent in another cylinder is used up, it can be timely extracted and used from the collecting cylinder, avoiding the suspension of the flaw detection work caused by the interruption of the coupling agent supply; By cooperating the first filter screen, the second filter screen, the third spring, the pressure sensor, the movable plate, the fourth motor, the sewage pipe, the fourth box body and the spray pipe, it can remove impurities, particles and other pollutants in the coupling agent, preventing them from affecting the transmission and reflection of the ultrasonic wave, as well as wearing the ultrasonic probe or blocking the pipeline. Installing the filtering device can reduce the wear and blockage of these components, prolong the service life of the equipment, enable the clean coupling agent to better form a good coupling between the probe and the ship shaft, improve the coupling efficiency, and make the ultrasonic energy be transmitted more effectively. Brief Description of the Drawings

[0020] Figure 1 Schematic diagram of the structure of the first embodiment of the ultrasonic flaw detection device for the ship shaft material provided by the present invention;

[0021] Figure 2 is Figure 1 Partial cross-sectional view of the structure shown from another perspective;

[0022] Figure 3 is Figure 2 Cross-sectional view of the lifting plate and the moving frame shown;

[0023] Figure 4 is Figure 3 Bottom view of the centralized box shown;

[0024] Figure 5 is Figure 4 Cross-sectional view of the structure shown in plan;

[0025] Figure 6 is Figure 1 Top view of a partial structure shown;

[0026] Figure 7 is Figure 6 Cross-sectional view of the rotating wheel and the telescopic rod shown;

[0027] Figure 8 Schematic diagram of the second embodiment of the ultrasonic flaw detection device for the ship shaft material provided by the present invention;

[0028] Figure 9 is Figure 8 Assembly diagram of structures such as the leak-proof plate, the centralized box and the lifting plate shown;

[0029] Figure 10 is Figure 9 Disassembly diagram of the lifting plate and the centralized box shown;

[0030] Figure 11 is Figure 10 Cross-sectional view of structures such as the centralized box shown;

[0031] Figure 12 is Figure 11 Assembly diagram of the fourth screw rod and the rotating seat shown;

[0032] Figure 13 is Figure 10 Partial cross-sectional view of the structure shown;

[0033] Figure 14 is Figure 13 Enlarged view of the structure of part A shown;

[0034] Figure 15Schematic diagram of the third embodiment of the ultrasonic flaw detector for the ship shaft material provided by the present invention;

[0035] Figure 16 It is Figure 15 Schematic diagram of another perspective of the structure shown;

[0036] Figure 17 It is Figure 15 Schematic diagram of the partial structure shown;

[0037] Figure 18 It is Figure 17 Assembly schematic diagram of the fourth box body, the first gear, the second gear and the dust-proof plate shown;

[0038] Figure 19 It is Figure 17 Schematic diagram of the sectional view of the structure shown;

[0039] Figure 20 It is Figure 19 Schematic diagram of the partial sectional view of the structure shown;

[0040] Figure 21 It is Figure 19 Schematic diagram of the partial side sectional view shown.

[0041] Reference numerals in the figure: 1, base; 2, fixed seat; 3, rotating wheel; 4, telescopic rod; 5, round-edge handwheel; 6, first hard pipe; 7, first box body; 8, moving seat; 9, moving frame; 10, first screw rod; 11, first motor; 12, second motor; 13, valve; 14, hose; 15, second screw rod; 16, ultrasonic flaw detector; 17, lifting plate; 18, third screw rod; 19, second hard pipe; 20, water pump; 21, centralized box; 22, plastic scraper; 23, leak-proof plate; 24, first ball; 25, third motor; 26, pressing plate; 27, porous cylinder; 28, rotating seat; 29, fourth screw rod; 30, first spring; 31, fourth motor; 32, T-shaped groove; 33, T-shaped fixing plate; 34, fixing bolt; 35, one-way valve; 36, contact seat; 37, second ball; 38, circular card hole; 39, connecting shaft; 40, ball seat; 41, guide bar; 42, first threaded hole; 43, limit block; 44, clamping rod; 45, second threaded hole; 46, threaded bolt; 47, arc-shaped collecting plate; 48, third box body; 49, sewage pipe; 50, third hard pipe; 51, fourth box body; 52, dust-proof plate; 53, first gear; 54, belt; 55, fifth motor; 56, spray pipe; 57, double-pass box; 58, second gear; 59, garbage collection box; 60, movable frame; 61, first filter screen; 62, second filter screen; 63, movable plate; 64, third spring; 65, pressure sensor; 66, U-shaped seat. Detailed implementation manners

[0042] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0043] First Embodiment:

[0044] Please refer to Figures 1 - 7, in the first embodiment of the present invention, an ultrasonic flaw detector for the ship shaft material includes a base 1, a fixed seat 2, a moving seat 8, a moving frame 9, and an ultrasonic flaw detector 16. The fixed seat 2 is fixedly installed on the top of the base 1. The moving seat 8 is slidably installed on the top of the base 1. The moving frame 9 is slidably installed on the top of the base 1. The ultrasonic flaw detector 16 is arranged inside the moving frame 9. Two telescopic rods 4 are rotatably installed on the sides of the fixed seat 2 and the moving seat 8 close to each other. The telescopic rod 4 is composed of a hollow tube and a ribbed tube. The inner wall of the hollow tube is provided with a strip groove, which is adapted to the ribs on the ribbed tube. One end of the ribbed tube extends into the hollow tube. When rotating, the strip groove restricts the ribs, causing the hollow tube and the ribbed tube to rotate simultaneously. Two rotating wheels 3 are fixedly installed on the outer walls of the two telescopic rods 4. Two fourth motors 31 are fixedly installed on one side of the moving seat 8. The output shafts of the two fourth motors 31 are respectively fixedly connected to one end of the two telescopic rods 4. A lifting plate 17 is slidably installed inside the moving frame 9. A central box 21 is fixedly installed at the bottom of the lifting plate 17. The ultrasonic flaw detector 16 is fixedly installed on one side of the central box 21. A leak-proof plate 23 is hermetically provided at the bottom of the central box 21. A rotating seat 28 is rotatably installed on the inner wall of the top of the central box 21. A fourth screw rod 29 is installed at the bottom of the rotating seat 28. A third motor 25 is fixedly installed on the top of the central box 21. The output shaft of the third motor 25 is fixedly connected to the rotating seat 28. A pressing plate 26 is slidably installed inside the central box 21. The pressing plate 26 is threadedly connected to the fourth screw rod 29. Two porous cylinders 27 are hermetically penetrated and slidably installed on the leak-proof plate 23. A first mounting plate is fixedly installed inside each of the two porous cylinders 27. First balls 24 are provided on the first mounting plate. Multiple flow ports are provided on both the porous cylinders 27 and the first mounting plate. A plastic scraping plate 22 is fixedly installed at the bottom of the leak-proof plate 23. A water pump 20 is fixedly installed on one side of the central box 21. The water outlet end of the water pump 20 is fixedly installed with a one-way valve 35. One end of the one-way valve 35 is fixedly connected to the central box 21. The water inlet end of the water pump 20 is fixedly installed with a second hard tube 19. A first box body 7 is fixedly installed on the top of the base 1. A valve 13 is provided on one side of the base 1. One end of a hose 14 is provided at the water outlet end of the valve 13. The other end of the hose 14 is arranged on the second hard tube 19. When the first ball 24 contacts the ship shaft material, the first ball 24 drives the porous cylinder 27 to rise, opening the flow ports on the porous cylinder 27, and the coupling agent flows out. Start the third motor 25. The third motor 25 drives the fourth screw rod 29 to rotate through the output shaft, causing the pressing plate 26 to descend, and extruding the coupling agent out of the central box 21 through pressure. When the first ball 24 no longer contacts the ship shaft material, the porous cylinder 27 descends and no longer discharges the coupling agent. According to the actual requirements of the flaw detection part, an appropriate amount of coupling agent is accurately extruded, avoiding the waste phenomenon that may occur in the traditional method and reducing the cost.

[0045] A second screw rod 15 is rotatably installed on the base 1. One end of the bottom of the moving frame 9 is threadedly connected to the second screw rod 15. A second motor 12 is fixedly installed on one side of the base 1. The output shaft of the second motor 12 is fixedly connected to one end of the second screw rod 15. A first screw rod 10 is also rotatably installed on the base 1. The bottom of the moving seat 8 is threadedly connected to the first screw rod 10. A first motor 11 is fixedly installed on the base 1. The output shaft of the first motor 11 is fixedly connected to one end of the first screw rod 10.

[0046] A third screw rod 18 is provided at the top of the moving frame 9. The bottom end of the third screw rod 18 extends into the moving frame 9 and is rotatably installed on the top of the lifting plate 17. The third screw rod 18 is threadedly connected to the moving frame 9. A round-edge handwheel 5 is fixedly installed at the top end of the third screw rod 18.

[0047] A first pocket hole is provided on the first mounting plate. The first ball 24 is movably inserted into the first pocket hole. A first spring 30 is sleeved outside the porous cylinder 27. Two ends of the first spring 30 are respectively fixedly installed on the leak-proof plate 23 and the porous cylinder 27. When the coupling agent flows out through the first pocket hole, it can be quickly smeared on the ship shaft material in cooperation with the ball.

[0048] A first hard pipe 6 is provided in the first box body 7. The other end of the first hard pipe 6 extends outside the first box body 7 and is fixedly connected to the first water inlet end of the valve 13.

[0049] The working principle of the ultrasonic flaw detection device for ship shaft materials provided by the present invention is as follows:

[0050] First, place the ship shaft material on the two telescopic rods 4. Start the fourth motor 31. The output shaft of the fourth motor 31 drives the telescopic rods 4 to rotate. At this time, the ship shaft material continuously rolls with the telescopic rods 4. When it is necessary to adjust the distance between the fixed seat 2 and the moving seat 8, start the first motor 11. The output shaft of the first motor 11 drives the first screw rod 10 to rotate, so that the moving seat 8 moves towards the fixed seat 2, and the telescopic rods 4 start to shorten. Rotate the round-edge handwheel 5, and the lifting plate 17 descends through the third screw rod 18, bringing the first ball 24 and the ultrasonic flaw detector 16 into contact with the ship shaft material. While starting the ultrasonic flaw detector 16, turn on the water pump 20. The water pump 20 starts to extract the coupling agent in the first box body 7 through the second hard pipe 19, the hose 14 and the first hard pipe 6, and transports the coupling agent to the centralized box 21. When the first ball 24 contacts the ship shaft material, the first ball 24 will drive the porous cylinder 27 to rise, opening the flow port on the porous cylinder 27, and the coupling agent flows out. Start the third motor 25. The output shaft of the third motor 25 drives the rotating seat 28 to rotate. The rotating seat 28 drives the fourth screw rod 29 to rotate, causing the pressing plate 26 to descend. The pressing plate 26 extrudes the coupling agent, and the coupling agent is evenly smeared on the ship shaft material through the cooperation of the first ball 24 and the plastic scraping plate 22. The ultrasonic flaw detector 16 starts to detect the ship shaft material, and thus the flaw detection work of the ship shaft material is completed.

[0051] Compared with the related technologies, the ultrasonic flaw detection device for the ship shaft material provided by the present invention has the following beneficial effects:

[0052] Through the cooperation of the first box body 7, the first rigid tube 6, the valve 13, the flexible tube 14, the second rigid tube 19, the water pump 20, the pressing plate 26, the first spring 30, the first ball 24 and the porous cylinder 27, the present invention provides an ultrasonic flaw detection device for the ship shaft material. By this, an appropriate amount of coupling agent can be accurately extruded according to the actual requirements of the flaw detection part, avoiding the waste phenomenon that may occur in the traditional method, reducing the cost, and the flaw detection personnel do not need to frequently go to the large cylinder to get the coupling agent. Especially in the case of narrow space or special position of the ship shaft, the operation time and difficulty can be reduced, and the work efficiency can be improved; Through the cooperation of the fixed seat 2, the rotating wheel 3, the telescopic rod 4, the moving seat 8, the first screw rod 10 and the first motor 11, since the lengths of the ship shafts of different ships are different, the ultrasonic flaw detector 16 can adapt to ship shafts of various lengths without specially customizing the ultrasonic flaw detector 16 for each ship shaft, and the position of the ultrasonic flaw detector 16 can also be accurately adjusted according to the length of the ship shaft, so that the ultrasonic probe can be better coupled with the ship shaft, ensuring that the ultrasonic waves can be evenly and accurately transmitted and received.

[0053] Second Embodiment:

[0054] Based on the ultrasonic flaw detection device for the ship shaft material provided in the first embodiment of the present application, the second embodiment of the present application proposes another ultrasonic flaw detection device for the ship shaft material. The second embodiment is only a preferred manner of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0055] The following further describes the second embodiment of the present invention in conjunction with the drawings and the embodiments.

[0056] Please refer to Figures 8 - 14, the ultrasonic flaw detection device for the ship shaft material further includes a T-shaped groove 32. The T-shaped groove 32 is provided at the bottom of the lifting plate 17. A T-shaped fixing plate 33 is fixedly installed at the top of the centralized box 21. The T-shaped fixing plate 33 is adapted to the T-shaped groove 32. Fixing holes are provided on both the T-shaped fixing plate 33 and the T-shaped groove 32. A fixing bolt 34 is provided in the fixing hole. The top end of the fourth screw 29 is fixedly installed with a connecting shaft 39. A guiding strip 41 is integrally formed on the outer wall of the connecting shaft 39. A circular clamping hole 38 is provided at the bottom of the rotating seat 28. Limiting grooves are provided on both sides of the circular clamping hole 38. The top end of the connecting shaft 39 extends into the circular clamping hole 38, and the guiding strip 41 is adapted to the limiting groove. The bottom end of the connecting shaft 39 is fixedly installed with a ball seat 40. A second mounting plate is fixedly installed in the ball seat 40. A second ball 37 is provided on the second mounting plate. A contact seat 36 is fixedly installed at the top of the leak-proof plate 23. The second ball 37 is in contact with the contact seat 36. Limiting blocks 43 are fixedly installed on both sides of the leak-proof plate 23. U-shaped clamping seats 66 are fixedly installed on both sides of the centralized box 21. The top end of the limiting block 43 extends into the U-shaped clamping seat 66. Communication clamping holes are provided on both the U-shaped clamping seat 66 and the limiting block 43. A clamping rod 44 is provided in the communication clamping hole. One end of the clamping rod 44 is provided with a first inclined surface. A second inclined surface is further provided on the inner wall of the top of the communication clamping hole on the limiting block 43. The first inclined surface is adapted to the second inclined surface. When the inclined surface on the clamping rod 44 comes into contact with and is pushed by the inclined surface on the limiting block 43, a pressure perpendicular to the inclined surface will be generated. This pressure can be decomposed into horizontal and vertical component forces. The horizontal component force causes the leak-proof plate 23 and the centralized box 21 to be squeezed against each other in the horizontal direction, thereby achieving fastening. The vertical component force helps to make the contact surfaces of the two fit more closely, reduce the gaps between the sealing rings, and further prevent the internal coupling agent from leaking. A plurality of second threaded holes 45 and first threaded holes 42 are respectively provided on the clamping rod 44 and the U-shaped clamping seat 66, and the plurality of second threaded holes 45 and the plurality of first threaded holes 42 are adapted to each other. A same threaded bolt 46 is provided in the first threaded hole 42 and the second threaded hole 45. A sealing ring is fixedly installed around the top of the leak-proof plate 23. The sealing ring is inserted into the sealing groove at the bottom of the centralized box 21. When the clamping rod 44 is inserted into the communication clamping holes on the U-shaped clamping seat 66 and the limiting block 43, the leak-proof plate 23 and the centralized box 21 can be fixed to prevent the coupling agent from leaking.

[0057] A second socket hole is provided on the second mounting plate, and the second ball 37 is movably inserted into the second socket hole.

[0058] When it is necessary to clean the inside of the centralized box 21, first use a tool to remove the fixing bolt 34, slide out the centralized box 21, then use a tool to remove the threaded bolt 46 in the first threaded hole 42, and then pull out the clamping rod 44 to separate the leak-proof plate 23 from the centralized box 21. Pull out the fourth screw rod 29 from the rotating seat 28, and then remove the pressing plate 26 from the fourth screw rod 29, and then the components inside the centralized box 21 can be cleaned. When installing, put the pressing plate 26 on the top of the fourth screw rod 29, then align the connecting shaft 39 and the guiding strip 41 with the circular clamping hole 38 on the rotating seat 28. After inserting, cover the leak-proof plate 23 on the bottom of the centralized box 21 to ensure that the second ball 37 is located inside the contact seat 36. Then, clamp the clamping rod 44 in the communicating clamping hole and use the threaded bolt 46 to fix the clamping rod 44. In this way, the disassembly and installation of the leak-proof plate 23 and the centralized box 21 are completed. Through the setting of the above components in the present invention, when the pressing plate 26 descends, it can continuously apply a downward pressure to the coupling agent, so that the coupling agent is stably extruded from the centralized box 21 during use, avoiding the situation of unsmooth extrusion or unstable flow caused by factors such as uneven self-gravity distribution of the coupling agent or deformation of the centralized box 21. The pressing plate 26 can also fully extrude the coupling agent to the outlet of the cylinder body, and can use the coupling agent in the cylinder more thoroughly, reducing residues. The structure inside the centralized box 21 can be regularly disassembled for thorough cleaning to prevent the coupling agent residues from drying and adhering to the inner wall of the centralized box 21, avoiding contamination of the subsequent used coupling agent, ensuring the purity and performance of the coupling agent, and avoiding corrosion or other damage to the material of the centralized box 21 caused by the chemical components in the residual coupling agent, thereby prolonging the service life of the centralized box 21.

[0059] Third Embodiment:

[0060] Based on the ultrasonic flaw detection device for ship shaft materials provided in the second embodiment of the present application, the third embodiment of the present application proposes another ultrasonic flaw detection device for ship shaft materials. The third embodiment is only a preferred manner of the second embodiment, and the implementation of the third embodiment will not affect the independent implementation of the second embodiment.

[0061] The following further describes the third embodiment of the present invention in conjunction with the drawings and embodiments.

[0062] Please refer to Figures 15 - 21, the ultrasonic flaw detection device for the ship shaft material further includes an arc-shaped collection plate 47. The arc-shaped collection plate 47 is fixedly installed at the bottom of the fixed seat 2, collects the dripping coupling agent and can be pumped for use when needed, enabling the coupling agent to be fully utilized and reducing the waste caused by accidental dripping of the coupling agent. When the coupling agent in the first box body 7 is used up, it can be timely pumped from the third box body 48 for use, avoiding the suspension of the flaw detection work due to the interruption of the coupling agent supply. The top of the base 1 is fixedly installed with a third box body 48. The top of the third box body 48 is provided with a first opening. A double-pass box 57 is rotatably installed on the third box body 48. First fixing rods are integrally formed on both sides of the double-pass box 57. The top of the third box body 48 is fixedly installed with a fifth motor 55. The output shaft of the fifth motor 55 is fixedly connected to one end of the first fixing rod. A dust-proof plate 52 is installed in the first opening. Second fixing rods are integrally formed on both sides of the dust-proof plate 52. The mutually remote ends of the two second fixing rods are respectively rotatably connected to the inner walls on both sides of the first opening. A second gear 58 is fixedly installed on the outer wall of the corresponding second fixing rod. A third fixing rod is rotatably installed on the top of the third box body 48. A first gear 53 is fixedly installed at one end of the third fixing rod. The first gear 53 meshes with the second gear 58. Pulley wheels are fixedly installed on the outer walls of the first fixing rod and the third fixing rod. The same belt 54 is sleeved outside the two pulley wheels. An activity frame 60 is slidably installed in the double-pass box 57. Two second filter meshes 62 are hinged on one inner wall of the activity frame 60. Two limiting bars are fixedly installed on the inner wall of the activity frame 60. Grooves are provided on both limiting bars. An activity plate 63 is slidably installed in the grooves. A pressure sensor 65 is fixedly installed in the grooves. The bottom of the second filter mesh 62 is in contact with the top of the activity plate 63. Second openings are provided on both sides of the activity frame 60. First filter meshes 61 are fixedly installed in the second openings. The top of the base 1 is also fixedly installed with a fourth box body 51. A garbage collection box 59 is arranged in the fourth box body 51. One end of a spray pipe 56 is fixedly installed in the fourth box body 51. The other end of the spray pipe 56 extends outside the fourth box body 51. Connect a water pipe to the spray pipe 56. The water sprayed by the spray pipe 56 cleans the second filter mesh 62 and the first filter mesh 61 on the activity frame 60. The impurities and metal wires are concentrated on the garbage collection box 59. The staff can take out the garbage collection box 59, and the remaining waste water is discharged from the sewage pipe 49. A third hard pipe 50 is arranged in the third box body 48. One end of the third hard pipe 50 extends outside the third box body 48 and is fixedly connected to the second water inlet end of the valve 13. The second filter mesh 62 filters out the impurities and metal wires in the coupling agent. When the metal wires and impurities on the two second filter meshes 62 are concentrated too much, it will drive the second filter mesh 62 to descend. One end of the second filter mesh 62 drives the activity plate 63 to descend and contacts the pressure sensor 65. At this time, the fifth motor 55 starts and begins to clean the activity frame 60.

[0063] One end of each of two third springs 64 is fixedly installed at the bottom of the movable plate 63, and the other ends of the two third springs 64 are both fixedly installed on the limiting strip.

[0064] A sewage discharge pipe 49 is fixedly installed on one side of the fourth box body 51, and a plurality of filter holes are formed in the bottom of the garbage collection box 59.

[0065] When applying the coupling agent to the ship shaft material, some of the coupling agent will drip onto the arc-shaped collecting plate 47 and slide into the third box body 48 through the arc-shaped collecting plate 47. When the coupling agent drips from the arc-shaped collecting plate 47 into the third box body 48, the second filter screen 62 will filter out impurities and metal wires in the coupling agent. When there is too much concentration of metal wires and impurities on the two second filter screens 62, it will drive the second filter screen 62 to descend. One end of the second filter screen 62 drives the movable plate 63 to descend and contact the pressure sensor 65. At this time, the fifth motor 55 starts, and the output shaft of the fifth motor 55 drives the double-pass box 57 to rotate. While the double-pass box 57 is rotating, the dust-proof plate 52 will be driven to rotate through the belt 54, facilitating the rotation of the double-pass box 57 out of the third box body 48. When the double-pass box 57 rotates 90 degrees, the movable frame 60 slides out into the fourth box body 51. Connect the water pipe to the spray pipe 56, and the water sprayed by the spray pipe 56 cleans the second filter screen 62 and the first filter screen 61 on the movable frame 60. The impurities and metal wires are concentrated on the garbage collection box 59, and the staff can take out the garbage collection box 59, and the remaining waste water is discharged from the sewage discharge pipe 49. Then, start the fifth motor 55 again to reverse the output shaft of the fifth motor 55 to return the double-pass box 57 to its original position. Through the setting of the above components, the present invention collects the dripping coupling agent and extracts and uses it when needed, enabling the coupling agent to be fully utilized and reducing the waste caused by accidental dripping of the coupling agent. When the coupling agent in the other cylinder is used up, it can be timely extracted and used from the collection cylinder, avoiding the suspension of the flaw detection work caused by the interruption of the coupling agent supply. It can remove pollutants such as impurities and particles in the coupling agent to prevent them from affecting the transmission and reflection of ultrasonic waves, as well as wearing the ultrasonic probe or blocking the pipeline. Installing the filtering device can reduce the wear and blockage of these components, extend the service life of the equipment, enable the clean coupling agent to better form a good coupling between the probe and the ship shaft, improve the coupling efficiency, and enable the ultrasonic energy to be transmitted more effectively.

[0066] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. An ultrasonic flaw detector for a ship shaft material, comprising a base, a fixed seat, a moving seat, a moving frame and an ultrasonic flaw detector. The fixed seat is fixedly installed on the top of the base, the moving seat is slidably installed on the top of the base, the moving frame is slidably installed on the top of the base, and the ultrasonic flaw detector is arranged in the moving frame. It is characterized in that, On one side where the fixed seat and the movable seat are close to each other, two telescopic rods are rotatably installed. Two rotating wheels are fixedly installed on the outer walls of the two telescopic rods. A lifting plate is slidably installed in the movable frame. A centralized box is fixedly installed at the bottom of the lifting plate. The ultrasonic flaw detector is fixedly installed on one side of the centralized box. A leak-proof plate is hermetically arranged at the bottom of the centralized box. A rotating seat is rotatably installed on the inner wall of the top of the centralized box. A fourth screw rod is installed at the bottom of the rotating seat. A third motor is fixedly installed on the top of the centralized box. The output shaft of the third motor is fixedly connected to the rotating seat. A pressing plate is slidably installed in the centralized box. The pressing plate is threadedly connected to the fourth screw rod. Two porous cylinders penetrate and are slidably sealed on the leak-proof plate. A first mounting plate is fixedly installed in each of the two porous cylinders. First balls are arranged on the first mounting plate. A plurality of flow ports are arranged on both the porous cylinders and the first mounting plate. A plastic scraping plate is fixedly installed at the bottom of the leak-proof plate. A water pump is fixedly installed on one side of the centralized box. A one-way valve is fixedly installed at the water outlet end of the water pump. One end of the one-way valve is fixedly connected to the centralized box. A second hard pipe is fixedly installed at the water inlet end of the water pump. A first box body is fixedly installed on the top of the base. A valve is arranged on one side of the base. One end of a hose is arranged at the water outlet end of the valve. The other end of the hose is arranged on the second hard pipe; A second screw rod is rotatably installed on the base. One end of the bottom of the movable frame is threadedly connected to the second screw rod. A second motor is fixedly installed on one side of the base. The output shaft of the second motor is fixedly connected to one end of the second screw rod. A first screw rod is also rotatably installed on the base. The bottom of the movable seat is threadedly connected to the first screw rod. A first motor is fixedly installed on the base. The output shaft of the first motor is fixedly connected to one end of the first screw rod; A third screw rod is arranged on the top of the movable frame. The bottom end of the third screw rod extends into the movable frame and is rotatably installed on the top of the lifting plate. The third screw rod is threadedly connected to the movable frame. A round-edge handwheel is fixedly installed at the top end of the third screw rod; The bottom of the lifting plate is provided with a T-shaped groove, the top of the centralized box is fixedly installed with a T-shaped fixing plate, the T-shaped fixing plate is adapted to the T-shaped groove, the top end of the fourth screw rod is fixedly installed with a connecting shaft, a guiding strip is integrally formed on the outer wall of the connecting shaft, a circular clamping hole is provided at the bottom of the rotating seat, limiting grooves are provided on both sides of the circular clamping hole, the top end of the connecting shaft extends into the circular clamping hole, and the guiding strip is adapted to the limiting groove, the bottom end of the connecting shaft is fixedly installed with a ball seat, a second mounting plate is fixedly installed in the ball seat, a second ball is provided on the second mounting plate, a contact seat is fixedly installed on the top of the leak-proof plate, the second ball is in contact with the contact seat, limiting blocks are fixedly installed on both sides of the leak-proof plate, U-shaped clamping seats are fixedly installed on both sides of the centralized box, the top ends of the limiting blocks extend into the U-shaped clamping seats, communicating clamping holes are provided on both the U-shaped clamping seats and the limiting blocks, a clamping rod is provided in the communicating clamping hole, a first inclined surface is provided at one end of the clamping rod, and a second inclined surface is further provided on the inner wall of the top of the communicating clamping hole on the limiting block, the first inclined surface is adapted to the second inclined surface, a plurality of second threaded holes and first threaded holes are respectively provided on the clamping rod and the U-shaped clamping seat, and the plurality of second threaded holes and the plurality of first threaded holes are adapted to each other, and the same threaded bolt is provided in the first threaded hole and the second threaded hole.

2. The ultrasonic flaw detection device for the ship shaft material according to claim 1, characterized in that, A first pocket hole is provided on the first mounting plate, and the first ball is movably inserted into the first pocket hole. A first spring is sleeved outside the porous cylinder, and both ends of the first spring are respectively fixedly installed on the leak-proof plate and the porous cylinder.

3. The ultrasonic flaw detection device for the ship shaft material according to claim 1, characterized in that, A first hard pipe is provided in the first box body, and the other end of the first hard pipe extends outside the first box body and is fixedly connected to the first water inlet end of the valve.

4. The ultrasonic flaw detection device for the ship shaft material according to claim 1, characterized in that, A second pocket hole is provided on the second mounting plate, and the second ball is movably inserted into the second pocket hole.

5. The ultrasonic flaw detection device for the ship shaft material according to claim 1, characterized in that, An arc-shaped collecting plate is fixedly installed at the bottom of the fixed seat, a third box body is fixedly installed at the top of the base, a first opening is formed at the top of the third box body, a double-pass box is rotatably installed on the third box body, first fixing rods are integrally formed on both sides of the double-pass box, a fifth motor is fixedly installed at the top of the third box body, an output shaft of the fifth motor is fixedly connected to one end of the first fixing rod, a dust-proof plate is installed in the first opening, second fixing rods are integrally formed on both sides of the dust-proof plate, and the mutually remote ends of the two second fixing rods are respectively rotatably connected to the inner walls on both sides of the first opening. A second gear is fixedly installed on the outer wall of the corresponding second fixing rod. A third fixing rod is rotatably installed at the top of the third box body, a first gear is fixedly installed at one end of the third fixing rod, the first gear is meshed with the second gear, pulley wheels are fixedly installed on the outer walls of the first fixing rod and the third fixing rod, and the same belt is sleeved on the outer sides of the two pulley wheels. A movable frame is slidably installed in the double-pass box, two second filter meshes are hinged on one inner wall of the movable frame, two limiting strips are fixedly installed on the inner wall of the movable frame, grooves are formed in both of the two limiting strips, movable plates are slidably installed in the grooves, pressure sensors are fixedly installed in the grooves, the bottom of the second filter mesh is in contact with the top of the movable plate, second openings are formed in both sides of the movable frame, first filter meshes are fixedly installed in the second openings, a fourth box body is further fixedly installed at the top of the base, a garbage receiving box is arranged in the fourth box body, one end of a spray pipe is fixedly installed in the fourth box body, and the other end of the spray pipe extends outside the fourth box body. A third rigid pipe is arranged in the third box body, and one end of the third rigid pipe extends outside the third box body and is fixedly connected to the second water inlet end of the valve.

6. The ultrasonic flaw detector for the ship shaft material according to claim 5, characterized in that, One ends of two third springs are fixedly installed at the bottom of the movable plate, and the other ends of the two third springs are fixedly installed on the limiting strips.

7. The ultrasonic flaw detection device for the ship shaft material according to claim 5, characterized in that, A sewage discharge pipe is fixedly installed on one side of the fourth box body, and a plurality of filter holes are formed in the bottom of the garbage receiving box.

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