Liquid spray device for magnetic particle inspection of drilling joints

Abstract

The present invention relates to the technical field of magnetic particle detection equipment, and specifically to a liquid spraying device for magnetic particle detection of drilling joints, including a work frame, a drilling joint is arranged at the upper middle end of one side of the work frame, a clamping assembly for maintaining the stability of the drilling joint during liquid spraying operation is arranged at the upper end of the work frame located on one side of the drilling joint, the clamping assembly includes clamping plates respectively arranged on both sides of the drilling joint, a driving assembly for driving the drilling joint to rotate is arranged at the upper end of the work frame located at a corner of one side of the drilling joint, and a reciprocating screw is rotatably connected to the middle of one side of the upper end face of the work frame away from the clamping assembly. Compared with the prior art, the present application solves the problem in the prior art that it is difficult to adjust the spray width of the nozzle according to the diameter of the drilling joint and the problem that the magnetic suspension cannot be reused, resulting in increased detection costs and waste of resources.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic powder detection equipment, in particular to a liquid spraying device for magnetic powder detection of drilling joints. Background Art

[0002] Drilling joints are an indispensable key component in drilling operations. They are used to connect tools such as drill pipes, casings and drill bits to ensure the smooth progress of drilling operations. Due to the complex drilling operation environment, joints may suffer from defects such as wear and cracks, so strict inspections must be carried out. Magnetic particle inspection technology is a commonly used non-destructive inspection method, which is particularly suitable for detecting surface and near-surface defects of drilling joints. This technology uses the adsorption characteristics of magnetic powder under the action of a magnetic field to observe the deposition of magnetic powder at the defect to determine whether the joint has defects. In the process of magnetic particle inspection, the spray device plays a key role. It can evenly distribute the magnetic suspension on the surface of the drilling joint to ensure that the magnetic powder can fully cover and adsorb on potential defects. The efficiency and uniformity of the spray device are crucial to improving the accuracy and efficiency of magnetic particle inspection. Therefore, a reasonably designed spray device is an important link in ensuring the quality of drilling joints.

[0003] In the prior art, a Chinese patent document with the announcement number CN113245091B proposes an improved spray device for magnetic particle flaw detection, including a loading mechanism; a suction mechanism is provided on the top of the loading mechanism; a control mechanism is arranged on the top of the suction mechanism; and a liquid spraying mechanism is arranged at the right end of the control mechanism. A funnel is provided inside the tank of the loading mechanism, so that the magnetic suspension can be filtered during the loading process, and the shaft sleeve of the rotating member is connected in the rotating groove so that the rotating member can rotate according to the rotating groove, and a stirring member is fixedly connected to the bottom of the rotating member, and the magnetic suspension is stirred by the stirring member. The spherical structure on the stirring member can increase the contact area with the magnetic suspension. However, when this technology is used for liquid spraying treatment of drilling joints, since the drilling joints are cylindrical, they are mostly placed vertically during liquid spraying treatment, and the diameters of the drilling joints are different. However, the nozzle of this technology is not equipped with a structure for adjusting the spray width, resulting in that when spraying magnetic suspension on some drilling nozzles with smaller diameters, the two sides of the magnetic suspension sprayed from the nozzle fail to adhere to the surface of the drilling nozzle, thus wasting it and causing pollution to the working environment. In addition, in the process of spraying the drilling nozzle, it is necessary to spray it continuously. During the spraying, a large amount of magnetic suspension will flow out from the lower end of the drilling joint, which not only increases the detection cost, but also causes a huge waste of resources, making the reuse of magnetic suspension particularly difficult.

[0004] Furthermore, we disclose a liquid spraying device for magnetic particle inspection of drilling joints to meet the actual needs of the prior art that it is difficult to adjust the spray width of the nozzle according to the diameter of the drilling joint and fails to reuse the magnetic suspension, resulting in increased inspection costs and waste of resources. Summary of the invention

[0005] In view of this, the purpose of the present invention is to propose a liquid spraying device for magnetic particle inspection of drilling joints, so as to solve the problems in the prior art that it is difficult to adjust the spray width of the nozzle according to the diameter of the drilling joint and the failure to reuse the magnetic suspension, resulting in increased inspection costs and waste of resources.

[0006] Based on the above purpose, the present invention provides a liquid spraying device for magnetic particle detection of drilling joints, including a working frame, a drilling joint is arranged at the upper end of the middle part of one side of the working frame, the upper end of the working frame is located on one side of the drilling joint and is provided with a clamping assembly for maintaining the stability of the drilling joint during the liquid spraying operation, the clamping assembly includes clamping plates respectively arranged on both sides of the drilling joint, the upper end of the working frame is located at a corner of one side of the drilling joint and is provided with a driving assembly for driving the drilling joint to rotate, a reciprocating screw is rotatably connected to the middle part of one side of the upper end surface of the working frame away from the clamping assembly, the external transmission of the reciprocating screw is connected to a lifting seat, and the two ends of the lifting seat The ends are slidably connected to the first guide rod, the lower ends of the two first guide rods are fixedly connected to the work frame, three nozzles for spraying liquid on the drilling joint are arranged on the side of the lifting seat close to the drilling joint, the upper end of the lifting seat is provided with an angle adjustment component for rotating the nozzles on both sides, and the angle adjustment component realizes angle adjustment of the nozzle by moving the clamping plate, a liquid storage tank is fixedly connected to the middle part of the side of the upper end surface of the working frame away from the drilling joint, and a connecting pipe is fixedly connected to the middle part of the side of the drilling joint on the lower end surface of the working frame, one end of the connecting pipe is fixedly connected to the liquid storage tank, and the connecting pipe is inclined.

[0007] Preferably, the clamping assembly also includes a support rod fixedly connected to the middle part of one side of the upper end of the working frame, the upper end of the support rod is rotatably connected to a bidirectional screw rod, both ends of the outer wall of the bidirectional screw rod are transmission connected to a movable plate, and the side of the support rod close to the clamping plate is fixedly connected to a second guide rod, the two movable plates are both slidably connected to the second guide rod, and the end of the movable plate away from the bidirectional screw rod is fixedly connected to the clamping plate, and the clamping plate is of arc-shaped design.

[0008] Preferably, a plurality of buffer assemblies are respectively provided on the end surfaces of one side of the two clamps close to the drilling joint, and the buffer assemblies include two telescopic springs fixedly connected to the clamps, one end of the two telescopic springs is fixedly connected to a clamping block, and both ends of the clamping block on the side away from the telescopic spring are rotatably connected to rollers, and a plurality of connecting rods are evenly fixedly connected to the side of the end surface of one side of the clamp close to the lifting seat, one end of the plurality of connecting rods is fixedly connected to a connecting spring, one end of the plurality of connecting springs is fixedly connected to a fixing block, and a shielding plate is fixedly connected to the end surfaces of one side of the plurality of fixing blocks, and a guide groove is provided on the end surface of the shielding plate close to the lifting seat.

[0009] Preferably, a groove is provided in the middle of the upper end surface of the work frame on one side of the drilling joint, the groove is connected to the connecting pipe, a rotating groove is provided in the middle of the groove, a plurality of support plates are slidably connected inside the rotating groove, a rotating plate is fixedly connected to the upper ends of the plurality of support plates, and a plurality of through holes are evenly spaced on the surface of the rotating plate.

[0010] Preferably, the driving assembly includes a support seat fixedly connected to the workbench, one end of the support seat is rotatably connected to a rotating rod, the middle part of an end surface of the support seat close to the drilling joint is fixedly connected to a connecting plate, one end surface of the connecting plate is fixedly connected to a limiting spring, one end of the limiting spring away from the connecting plate is fixedly connected to the middle part of the rotating rod, one end of the rotating rod away from the support seat is rotatably connected to a friction wheel, a second servo motor is provided in the middle part of the upper end surface of the rotating rod, the output end of the second servo motor extends into the interior of the rotating rod and is fixedly connected to a toothed belt wheel, and the outside of the toothed belt wheel is transmission-connected to the friction wheel via a toothed belt.

[0011] Preferably, the angle adjustment assembly includes a roller, a connecting slide rod, and a connecting sleeve, the roller is rotatably connected to the middle part of the upper end of the lifting seat, one end of the connecting slide rod is slidably connected to one side clamping plate, one side end surface of the clamping plate is provided with a slide groove, the connecting slide rod is slidably connected to the clamping plate through the slide groove, one end of the connecting sleeve is fixedly connected to the lifting seat, the other end of the connecting sleeve is slidably connected to the connecting slide rod, the connecting slide rod is fixedly connected to a first pull rope at the middle part of one side end surface of the connecting sleeve, the first pull rope passes through the connecting sleeve and is slidably connected to the same, and one end of the first pull rope passes through the connecting sleeve, is wrapped around the outside of the roller and is fixedly connected to the roller.

[0012] Preferably, the inner middle part of one side of the lifting seat is rotatably connected to a winding roller, the winding roller is fixedly connected to the rotating roller, the upper and lower ends of the outer wall of the winding roller are fixedly connected to second pull ropes, the two second pull ropes are both wound around the winding roller and the winding directions are inconsistent, the ends of the two second pull ropes away from the winding roller are respectively fixedly connected to one end of the outer wall of the nozzles on both sides, the middle parts of the outer walls of the nozzles on both sides are fixedly connected to return springs, and one end of the two return springs is fixedly connected to the lifting seat.

[0013] Preferably, a telescopic tube is fixedly connected to the middle part of the outer wall of the lifting seat, a flow cavity is opened inside the lifting seat, the nozzles located on both sides are rotatably connected to the lifting seat and communicated with the flow cavity through a bellows, and the nozzle located in the middle is fixedly connected to the lifting seat and communicated with the flow cavity through two connecting hoses.

[0014] Preferably, a stirring assembly for stirring the internal liquid is provided inside the liquid storage tank, and the stirring assembly includes a gear and a rotating seat, the rotating seat is rotatably connected to the inside of the liquid storage tank, a plurality of stirring rods are evenly and fixedly connected to the middle part of the rotating seat, a tooth groove is provided on the upper end outer wall of the rotating seat, the rotating seat is meshed with the gear through the external tooth groove, the gear is engaged and rotatably connected with the liquid storage tank, and a first servo motor is provided at a corner on one side of the reciprocating screw rod on the upper end surface of the working frame, and the output end of the first servo motor is connected to the reciprocating screw rod and the gear transmission through a toothed belt pulley structure.

[0015] Preferably, a delivery pump is provided in the middle of the upper end surface of the liquid storage tank, the input end of the delivery pump extends into the inner bottom of the liquid storage tank, and the output end of the delivery pump is fixedly connected to the telescopic tube.

[0016] Beneficial effects of the present invention:

[0017] In the fluid spraying device for magnetic particle inspection of drilling joints, the movement of the splint and the nozzle angle adjustment component form a close linkage mechanism. With the fine movement of the splint, the nozzle can respond sensitively and change the angle accordingly. This design allows the operator to indirectly and accurately adjust the angle of the nozzle by precisely controlling the movement of the splint, thereby achieving detailed adjustment of the width of the fluid spray. This innovative design not only improves the accuracy and efficiency of the fluid spraying operation, but also ensures the effective use of the magnetic suspension and avoids waste. At the same time, due to the adjustability of the nozzle angle, the device can adapt to drilling joints of different diameters, further improving the versatility and practicality of the equipment.

[0018] The liquid spraying device for magnetic particle inspection of drilling joints is connected to the connecting pipe, liquid storage tank and groove, forming a closed-loop system for magnetic suspension recovery. When the magnetic suspension is evenly sprayed on the surface of the drilling joint, it will flow down along the outer wall of the joint. During this process, the excess magnetic suspension will naturally gather in the groove and then be guided through the connecting pipe. Since the connecting pipe is designed to be inclined, the force of gravity is used to steadily guide the magnetic suspension back to the liquid storage tank. This design not only ensures the recovery efficiency of the magnetic suspension, but also ensures that the recovered magnetic suspension can be directly used for subsequent inspection work, which not only reduces the inspection cost, but also realizes the maximum utilization of resources, fully reflecting the green and environmentally friendly production concept. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the clamping assembly of the present invention;

[0022] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0023] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0024] Figure 5 It is a schematic diagram of a partial three-dimensional structure of the clamping assembly of the present invention;

[0025] Figure 6 This is a schematic diagram of the internal three-dimensional structure of the liquid storage tank of the present invention;

[0026] Figure 7 It is a partial three-dimensional schematic diagram of the nozzle angle adjustment assembly of the present invention;

[0027] Figure 8 This is a schematic diagram of the internal structure of the nozzle angle adjustment assembly of the present invention;

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the winding roller of the present invention;

[0029] Fig.10 It is a schematic diagram of the three-dimensional structure of the drilling joint self-rotation drive assembly of the present invention.

[0030] The markings in the figure are:

[0031] 1. Work frame; 2. Support rod; 3. Moving plate; 4. Bidirectional screw rod; 5. Clamp plate; 6. Guide groove; 7. Shield plate; 8. Reciprocating screw rod; 9. First guide rod; 10. Lifting seat; 11. First servo motor; 12. Telescopic tube; 13. Delivery pump; 14. Liquid storage tank; 15. Roller; 16. Rotating plate; 17. Clamp block; 18. Telescopic spring; 19. Roller; 20. Rotating groove; 21. Support plate; 22. Through hole; 23. Connecting pipe; 24. Connecting sleeve; 25. Spray head; 26. Fixed block; 27. Connecting spring; 28. Connecting rod; 29. ​​Connecting slide rod; 30. Gear; 31. Rotating seat; 32. Agitating rod; 33. First pull rope; 34. Bellows; 35. Connecting hose; 36. Second pull rope; 37. Return spring; 38. Circulation chamber; 39. Winding roller; 40. Slide groove; 41. Second guide rod; 42. Support seat; 43. Second servo motor; 44. Rotating rod; 45. Friction wheel; 46. Limiting spring; 47. Connecting plate; 48. Groove. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0033] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] like Figures 1 to 10As shown, a fluid jetting device for magnetic particle detection of drilling joints comprises a work frame 1, a drilling joint is arranged at the upper middle end of one side of the work frame 1, a clamping assembly for maintaining the stability of the drilling joint during fluid jetting operation is arranged at the upper end of the work frame 1 located on one side of the drilling joint, the clamping assembly comprises clamping plates 5 respectively arranged on both sides of the drilling joint, a driving assembly for driving the drilling joint to rotate is arranged at the upper end of the work frame 1 located at a corner of one side of the drilling joint, a reciprocating screw rod 8 is rotatably connected to the middle of one side of the upper end surface of the work frame 1 away from the clamping assembly, the external transmission of the reciprocating screw rod 8 is connected to a lifting seat 10, and the lifting seat 1 0 is slidably connected with first guide rods 9 at both ends, and the lower ends of the two first guide rods 9 are fixedly connected to the work frame 1. Three nozzles 25 for spraying liquid on the drilling joint are arranged on the side of the lifting seat 10 close to the drilling joint. An angle adjustment component for rotating the nozzles 25 on both sides is arranged on the upper end of the lifting seat 10. The angle adjustment component adjusts the angle of the nozzle 25 by moving the clamping plate 5. A liquid storage tank 14 is fixedly connected to the middle of the side of the upper end face of the work frame 1 away from the drilling joint. A connecting pipe 23 is fixedly connected to the lower end face of the work frame 1 located in the middle of one side of the drilling joint. One end of the connecting pipe 23 is fixedly connected to the liquid storage tank 14, and the connecting pipe 23 is tilted. The clamping assembly clamps the drilling joint through the clamping plates 5 on both sides to ensure the stability during the spraying operation. When the device is used, the movement of the clamping plate 5 is linked with the angle adjustment assembly of the nozzle 25. When the clamping plate 5 moves, the nozzle 25 can be driven to change the angle accordingly. By accurately controlling the movement amount of the clamping plate 5, the angle of the nozzle 25 can be indirectly controlled, and then the width of the spray can be adjusted, thereby improving the accuracy of the spraying operation and avoiding the waste of magnetic suspension. The nozzle 25 is adjustable in angle to adapt to drilling joints of different diameters, which improves the device. The versatility of the equipment reduces the environmental pollution problem caused by too wide a spray. In addition, one end of the connecting pipe 23 is connected to the liquid storage tank 14, and the other end is connected to the groove 48. When the magnetic suspension is sprayed onto the surface of the drilling joint, the magnetic suspension will flow down the outer wall of the drilling joint, and the excess magnetic suspension will flow into the connecting pipe 23 along the groove 48. The connecting pipe 23 is tilted and uses gravity to drain the magnetic suspension back into the liquid storage tank 14. The recovered magnetic suspension can be reused, which reduces the detection cost, reduces the environmental pollution caused by the loss of the magnetic suspension, improves the resource utilization efficiency, and conforms to the green and environmentally friendly production concept.

[0035] Further, such as Figure 1 , Figure 2 , Figure 5As shown, the clamping assembly also includes a support rod 2 fixedly connected to the middle part of one side of the upper end of the work frame 1, the upper end of the support rod 2 is rotatably connected with a bidirectional screw rod 4, both ends of the outer wall of the bidirectional screw rod 4 are transmission-connected with a moving plate 3, the side of the support rod 2 close to the clamping plate 5 is fixedly connected with a second guide rod 41, the two moving plates 3 are slidably connected to the second guide rod 41, the end of the moving plate 3 away from the bidirectional screw rod 4 is fixedly connected to the clamping plate 5, the clamping plate 5 is designed in an arc shape, and the end surfaces of the two clamping plates 5 close to the drilling joint are respectively provided with a plurality of buffer assemblies, the buffer assembly includes two telescopic springs 18 fixedly connected to the clamping plates 5, and the two telescopic springs 18 are fixedly connected to the clamping plates 5. One end of the spring 18 is fixedly connected to a clamping block 17, and both ends of the clamping block 17 away from the telescopic spring 18 are rotatably connected to rollers 19. One end surface of one side of the clamping plate 5 is evenly spaced and fixedly connected to a side of the lifting seat 10, and one end of the multiple connecting rods 28 is fixedly connected to a connecting spring 27, and one end of the multiple connecting springs 27 is fixedly connected to a fixed block 26. One end surface of the multiple fixed blocks 26 is fixedly connected to a shielding plate 7, and the end surface of the shielding plate 7 close to the lifting seat 10 is provided with a guide groove 6. The upper end surface of the working frame 1 is located in the middle of one side of the drilling joint and is provided with a groove 48, and the groove 48 is connected to the connecting pipe 23 A rotating groove 20 is provided in the middle of the groove 48, and a plurality of support plates 21 are slidably connected inside the rotating groove 20. A rotating plate 16 is fixedly connected to the upper ends of the plurality of support plates 21, and a plurality of through holes 22 are evenly spaced on the surface of the rotating plate 16. When the device is in use, the moving plates 3 at both ends are first moved inward by rotating the bidirectional screw rod 4. The movement stability of the moving plate 3 can be improved by the action of the second guide rod 41. The movement of the moving plate 3 drives the clamping plate 5 to move. After moving a certain distance, the roller 19 on the clamping block 17 first contacts the drilling joint to be treated by the injection, and after the contact, the clamping plate 5 continues to move forward a certain distance. , buffered by the telescopic spring 18, while preventing the clamping force from being too large to cause damage to the drilling joint, it can also not affect the self-rotation of the drilling joint through the driving assembly. A shielding plate 7 is also provided on one side of the splint 5, and the shielding plate 7 can shield the magnetic suspension sprayed onto the surface of the joint to prevent splashing. The magnetic suspension on the shielding plate 7 slides through the guide groove 6 to the groove 48 for reuse. The shielding plate 7 is connected to the splint 5 by a connecting spring 27. Through the action of the connecting spring 27, when the splint 5 clamps joints of different sizes, the shielding plate 7 can also complete a good adaptation work.

[0036] Further, such as Figure 1 and Fig.10As shown, the driving assembly includes a support seat 42 fixedly connected to the work frame 1, one end of the support seat 42 is rotatably connected to a rotating rod 44, a connecting plate 47 is fixedly connected to the middle of one end surface of the support seat 42 close to the drilling joint, a limiting spring 46 is fixedly connected to one end surface of the connecting plate 47, one end of the limiting spring 46 away from the connecting plate 47 is fixedly connected to the middle of the rotating rod 44, one end of the rotating rod 44 away from the support seat 42 is rotatably connected to a friction wheel 45, a second servo motor 43 is provided in the middle of the upper end surface of the rotating rod 44, the output end of the second servo motor 43 extends into the interior of the rotating rod 44 and is fixedly connected to a toothed belt wheel, the outer portion of the toothed belt wheel is connected to the friction wheel 45 through a toothed belt, and after the clamping work is completed , turn on the second servo motor 43, and the second servo motor 43 provides power to drive the friction wheel 45 to rotate using the toothed belt pulley structure. The friction wheel 45 is rotatably connected to one end of the rotating rod 44, and the rotating rod 44 is rotatably connected to the support seat 42, and a limiting spring 46 is arranged between the rotating rod 44 and the support seat 42. The limiting spring 46 allows the rotating rod 44 to rotate and thus adjust the position of the friction wheel 45. When driving joints of different diameters to rotate, the friction wheel 45 can always be in contact with the outer wall of the joint and maintain a certain pressure, and then when the second servo motor 43 drives the friction wheel 45 to rotate, it can drive the joint to rotate, thereby realizing the magnetic suspension spraying work on the entire outer wall.

[0037] Further, such as Figure 5 , Figure 7 , Figure 8 , Fig. 9As shown, the angle adjustment assembly includes a roller 15, a connecting slide bar 29, and a connecting sleeve 24. The roller 15 is rotatably connected to the middle part of the upper end of the lifting seat 10. One end of the connecting slide bar 29 is slidably connected to one side clamp plate 5. A slide groove 40 is provided on one side end surface of the one side clamp plate 5. The connecting slide bar 29 is slidably connected to the clamp plate 5 through the slide groove 40. One end of the connecting sleeve 24 is fixedly connected to the lifting seat 10. The other end of the connecting sleeve 24 is slidably connected to the connecting slide bar 29. The connecting slide bar 29 is located in the middle part of one side end surface of the connecting sleeve 24 and is fixedly connected with a first pull rope 33. The first pull rope 33 passes through the connecting sleeve 24 and is slidably connected thereto. One end of the first pull rope 33 passes through the connecting sleeve 24 and is wound around the outside of the roller 15 and is connected to the roller 1 5 is fixedly connected, the winding roller 39 is rotatably connected to the middle part of one side of the lifting seat 10, and the winding roller 39 is fixedly connected to the rotating roller 15. The upper and lower ends of the outer wall of the winding roller 39 are fixedly connected to the second pull rope 36, and the two second pull ropes 36 are wound around the winding roller 39 and the winding directions are inconsistent. The ends of the two second pull ropes 36 away from the winding roller 39 are respectively fixedly connected to one end of the outer wall of the nozzles 25 on both sides, and the middle parts of the outer walls of the nozzles 25 on both sides are fixedly connected to the return springs 37, and one end of the two return springs 37 is fixedly connected to the lifting seat 10. The middle part of the outer wall of the lifting seat 10 is fixedly connected to the telescopic tube 12, and the interior of the lifting seat 10 is provided with a circulation cavity 38. The nozzles 25 on both sides are rotatably connected to the lifting seat 10 and The nozzle 25 in the middle is connected to the flow chamber 38 through the bellows 34 and is fixedly connected to the lifting seat 10 and is connected to the flow chamber 38 through two connecting hoses 35. When the clamping plate 5 on the clamping assembly clamps the drilling joint, the connecting slide bar 29 can be driven to move to the side close to the drilling joint. The connecting slide bar 29 pulls the first pull rope 33 while moving. Since the other end of the first pull rope 33 is wound around the roller 15, the roller 15 rotates and drives the winding roller 39 inside the lifting seat 10 to rotate. Since the upper and lower outer walls of the winding roller 39 are both wound with the second pull rope 36 and the winding directions are inconsistent, the rotation of the winding roller 39 causes the winding roller 39 to pull the second pull rope 36 on both sides. When the second pull rope 36 is wound up, the nozzles 25 on both sides will rotate toward one side of the middle nozzle 25 to complete the angle adjustment, thereby realizing the adjustment of the spray width. When the clamp 5 is loosened, the winding roller 39 rotates in the opposite direction, and the second pull rope 36 is unwound. The nozzles 25 on both sides rotate in the opposite direction through the action of the return spring 37. The nozzle 25 in the middle is supplied with magnetic suspension from the circulation cavity 38 through the two connecting hoses 35, and the nozzles 25 on both sides are supplied with magnetic suspension from the circulation cavity 38 through the bellows 34. When the lifting seat 10 moves up and down,By connecting the connecting slide rod 29 and the connecting sleeve 24 and one end of the connecting slide rod 29 being slidably connected to the clamping plate 5 through the sliding groove 40, the entire angle adjustment assembly can slide up and down on the clamping plate 5 while the lifting seat 10 moves up and down, without affecting the angle adjustment work of the nozzle 25.

[0038] Further, such as Figure 4 , Figure 6 As shown, the liquid storage tank 14 is provided with a stirring assembly for stirring the internal liquid, and the stirring assembly includes a gear 30 and a rotating seat 31. The rotating seat 31 is rotatably connected to the inside of the liquid storage tank 14. A plurality of stirring rods 32 are evenly spaced and fixedly connected to the middle of the rotating seat 31. A tooth groove is provided on the upper end outer wall of the rotating seat 31. The rotating seat 31 is meshed and connected with the gear 30 through the external tooth groove. The gear 30 is engaged and rotatably connected with the liquid storage tank 14. The upper end surface of the working frame 1 is located at a corner on one side of the reciprocating screw rod 8. The first servo motor 11 is provided at the first servo motor 11. The output ends are connected to the reciprocating screw 8 and the gear 30 through the toothed belt pulley structure to drive the first servo motor 11. The first servo motor 11 can drive the reciprocating screw 8 and the gear 30 to rotate by using the toothed belt pulley structure. When the reciprocating screw 8 rotates, the lifting seat 10 moves up and down through the guiding effect of the first guide rod 9 to complete the adjustment of the spray height. When the gear 30 rotates, it can drive the rotating seat 31 to rotate. A stirring rod 32 is arranged inside the rotating seat 31, thereby driving the stirring rod 32 to rotate to complete the stirring of the internal magnetic suspension.

[0039] Further, such as Figure 6 As shown, a delivery pump 13 is provided in the middle of the upper end surface of the liquid storage tank 14, and the input end of the delivery pump 13 extends into the inner bottom of the liquid storage tank 14, and the output end of the delivery pump 13 is fixedly connected to the telescopic tube 12. When spraying is required, the delivery pump 13 is started, and the delivery pump 13 absorbs the magnetic suspension through the liquid inlet pipe extending into the inner bottom of the liquid storage tank 14, and then inputs it into the flow cavity 38 inside the lifting seat 10 through the telescopic tube 12 to realize the supply of magnetic suspension to the three nozzles 25.

[0040] Working principle: The moving plate 3 is driven inward by the bidirectional screw 4, and the second guide rod 41 ensures stability. The moving plate 3 drives the roller 19 on the clamping plate 5 and the clamping block 17 to contact the drilling joint, and the telescopic spring 18 buffers to prevent damage. The shielding plate 7 shields the sprayed magnetic suspension to prevent splashing, and is collected in the groove 48 through the guide groove 6 for reuse. The connecting spring 27 allows the shielding plate 7 to adapt to joints of different sizes;

[0041] When the clamping plate 5 is clamped, the winding roller 39 is rotated by connecting the sliding rod 29, the first pull rope 33 and the rotating roller 15 to adjust the angle of the nozzles 25 on both sides, thereby adjusting the spray width. When the lifting seat 10 moves, the angle adjustment component slides with the clamping plate 5 and does not affect the angle adjustment;

[0042] After the clamping is completed, the second servo motor 43 drives the friction wheel 45 to rotate, and is connected to the rotating rod 44 through the toothed belt pulley structure. The rotating rod 44 adjusts its position under the action of the support seat 42 and the limit spring 46 to ensure contact with the joints of different diameters and maintain pressure, driving the joints to rotate, achieving comprehensive spraying, and the recovered magnetic suspension enters the liquid storage tank 14 through the connecting pipe 23 for recycling;

[0043] The delivery pump 13 is started, and the delivery pump 13 absorbs the magnetic suspension liquid through the liquid inlet pipe extending into the bottom of the liquid storage tank 14, and then inputs it into the flow cavity 38 inside the lifting seat 10 through the telescopic tube 12 to realize the supply of magnetic suspension liquid to the three nozzles 25.

[0044] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0045] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A liquid spraying device for magnetic particle detection of drilling joints, comprising a working frame (1), wherein a drilling joint is arranged at an upper middle end of one side of the working frame (1), and characterized in that: The upper end of the working frame (1) is located on one side of the drilling joint and is provided with a clamping assembly for maintaining the stability of the drilling joint during the injection operation. The clamping assembly includes clamping plates (5) respectively arranged on both sides of the drilling joint. The upper end of the working frame (1) is located at a corner of one side of the drilling joint and is provided with a driving assembly for driving the drilling joint to rotate. A reciprocating screw rod (8) is rotatably connected to the middle of the side of the upper end surface of the working frame (1) away from the clamping assembly. The external transmission of the reciprocating screw rod (8) is connected to a lifting seat (10). Both ends of the lifting seat (10) are slidably connected to first guide rods (9). The lower ends of the two first guide rods (9) are fixedly connected to the working frame (1). The lifting seat (10) is provided with three nozzles (25) for spraying liquid on the drilling joint on one side thereof, and the upper end of the lifting seat (10) is provided with an angle adjustment assembly for rotating the nozzles (25) on both sides thereof, and the angle adjustment assembly adjusts the angle of the nozzles (25) by moving the clamping plate (5). The middle part of the upper end face of the working frame (1) away from the drilling joint is fixedly connected to a liquid storage tank (14), and the lower end face of the working frame (1) is fixedly connected to a connecting pipe (23) on the middle part of one side of the drilling joint, and one end of the connecting pipe (23) is fixedly connected to the liquid storage tank (14), and the connecting pipe (23) is arranged obliquely; The angle adjustment assembly comprises a rotating roller (15), a connecting slide rod (29), and a connecting sleeve (24); the rotating roller (15) is rotatably connected to the middle part of the upper end of the lifting seat (10); one end of the connecting slide rod (29) is slidably connected to a clamping plate (5) on one side; a sliding groove (40) is provided on one end surface of the clamping plate (5); the connecting slide rod (29) is slidably connected to the clamping plate (5) via the sliding groove (40); one end of the connecting sleeve (24) is fixedly connected to the lifting seat (10); The other end of the connecting sleeve (24) is slidably connected to the connecting slide rod (29); the connecting slide rod (29) is located in the middle of one end surface of the connecting sleeve (24) and is fixedly connected to a first pull rope (33); the first pull rope (33) passes through the connecting sleeve (24) and is slidably connected thereto; one end of the first pull rope (33) passes through the connecting sleeve (24) and is wound around the outside of the rotating roller (15) and is fixedly connected to the rotating roller (15); the inner middle of one side of the lifting seat (10) is rotatably connected to the winding roller (39); The winding roller (39) is fixedly connected to the rotating roller (15); the upper and lower ends of the outer wall of the winding roller (39) are fixedly connected to second pull ropes (36); the two second pull ropes (36) are both wound around the winding roller (39) and the winding directions are inconsistent; the ends of the two second pull ropes (36) away from the winding roller (39) are respectively fixedly connected to one end of the outer wall of the nozzle (25) located on both sides; the middle parts of the outer walls of the nozzles (25) located on both sides are fixedly connected to reset springs (37); the two reset springs (37) are fixedly connected to the outer wall of the nozzles (25) located on both sides; One end of the spring (37) is fixedly connected to the lifting seat (10), a telescopic tube (12) is fixedly connected to the middle of the outer wall of the lifting seat (10), a circulation chamber (38) is provided inside the lifting seat (10), the nozzles (25) located on both sides are rotatably connected to the lifting seat (10) and are connected to the circulation chamber (38) through a bellows (34), and the nozzle (25) located in the middle is fixedly connected to the lifting seat (10) and is connected to the circulation chamber (38) through two connecting hoses (35).

2. The liquid spraying device for magnetic particle detection of drilling joints according to claim 1 is characterized in that: The clamping assembly further comprises a support rod (2) fixedly connected to the middle part of one side of the upper end of the working frame (1); the upper end of the support rod (2) is rotatably connected to a bidirectional screw rod (4); both ends of the outer wall of the bidirectional screw rod (4) are drivingly connected to a movable plate (3); a side of the support rod (2) close to the clamping plate (5) is fixedly connected to a second guide rod (41); both movable plates (3) are slidably connected to the second guide rod (41); an end of the movable plate (3) away from the bidirectional screw rod (4) is fixedly connected to the clamping plate (5); and the clamping plate (5) is designed to be arc-shaped.

3. The liquid spraying device for magnetic particle detection of drilling joints according to claim 2 is characterized in that: A plurality of buffer components are respectively arranged on the end surfaces of one side of the two clamping plates (5) close to the drilling joint, and the buffer components include two telescopic springs (18) fixedly connected to the clamping blocks (17) at one end of the two telescopic springs (18), and both ends of the clamping blocks (17) on the side away from the telescopic springs (18) are rotatably connected to rollers (19), and a plurality of connecting rods (28) are evenly spaced and fixedly connected to the side of the end surface of one side of the clamping plates (5) close to the lifting seat (10), and one end of the plurality of connecting rods (28) is fixedly connected to the connecting spring (27), and one end of the plurality of connecting springs (27) is fixedly connected to the fixing block (26), and one end surface of the plurality of fixing blocks (26) is fixedly connected to the shielding plate (7), and the end surface of the shielding plate (7) close to the lifting seat (10) is provided with a guide groove (6).

4. The liquid spraying device for magnetic particle detection of drilling joints according to claim 1 is characterized in that: A groove (48) is provided in the middle of the upper end surface of the working frame (1) on one side of the drilling joint, the groove (48) is connected to the connecting pipe (23), a rotating groove (20) is provided in the middle of the groove (48), a plurality of supporting plates (21) are slidably connected inside the rotating groove (20), a rotating plate (16) is fixedly connected to the upper ends of the plurality of supporting plates (21), and a plurality of through holes (22) are evenly spaced on the surface of the rotating plate (16).

5. The liquid spraying device for magnetic particle detection of drilling joints according to claim 1 is characterized in that: The driving assembly comprises a support seat (42) fixedly connected to the work frame (1); one end of the support seat (42) is rotatably connected to a rotating rod (44); a connecting plate (47) is fixedly connected to the middle of a side end surface of the support seat (42) close to the drilling joint; a limiting spring (46) is fixedly connected to a side end surface of the connecting plate (47); one end of the limiting spring (46) away from the connecting plate (47) is fixedly connected to the middle of the rotating rod (44); one end of the rotating rod (44) away from the support seat (42) is rotatably connected to a friction wheel (45); a second servo motor (43) is provided in the middle of an upper end surface of the rotating rod (44); an output end of the second servo motor (43) extends into the interior of the rotating rod (44) and is fixedly connected to a toothed belt wheel; the outer portion of the toothed belt wheel is transmission-connected to the friction wheel (45) via a toothed belt.

6. The liquid spraying device for magnetic particle detection of drilling joints according to claim 1, characterized in that: The liquid storage tank (14) is provided with a stirring assembly for stirring the liquid inside, the stirring assembly comprising a gear (30) and a rotating seat (31), the rotating seat (31) being rotatably connected to the inside of the liquid storage tank (14), a plurality of stirring rods (32) being evenly spaced and fixedly connected to the middle of the rotating seat (31), a tooth groove being provided on the outer wall of the upper end of the rotating seat (31), the rotating seat (31) being meshed and connected to the gear (30) through the outer tooth groove, the gear (30) being engaged and rotatably connected to the liquid storage tank (14), the upper end surface of the working frame (1) being provided with a first servo motor (11) at a corner on one side of the reciprocating screw (8), the output end of the first servo motor (11) being transmission-connected to the reciprocating screw (8) and the gear (30) through a toothed belt pulley structure.

7. The liquid spraying device for magnetic particle detection of drilling joints according to claim 6, characterized in that: A delivery pump (13) is provided in the middle of the upper end surface of the liquid storage tank (14), the input end of the delivery pump (13) extends into the inner bottom of the liquid storage tank (14), and the output end of the delivery pump (13) is fixedly connected to the telescopic tube (12).

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