A device for treating the surface of oil drill pipe structure threads

Abstract

The present invention discloses a thread surface treatment device for a petroleum drill pipe structure, which belongs to the technical field of drill pipe manufacturing. The device comprises a support platform, a lifting frame fixedly connected to the support platform, a slider slidably connected to the lifting frame, a slider of the lifting frame rotatably connected to a rotating shaft, a rotating shaft fixedly connected to the support frame, a support frame rotatably connected to an adjustable elastic telescopic rod, a motor fixedly connected to the support frame, a bidirectional lead screw rotatably connected to the support frame, a sliding block threadedly connected to the bidirectional lead screw, a positioning frame rotatably connected to the sliding block, a spray gun provided on the positioning frame, a first push rod fixedly connected to the sliding block, a detection tube fixedly connected to the telescopic end of the first push rod, and a detection rod slidably connected to the detection tube. The present invention moves the telescopic end of the adjustable elastic telescopic rod by moving the detection rod, and adjusts the transmission ratio of the bidirectional lead screw and the motor, so as to avoid the spray gun moving too fast when processing a drill pipe with a deeper thread groove, resulting in poor surface treatment effect in the deep part of the thread.

Description

Technical Field

[0001] The invention relates to the technical field of drill pipe manufacturing, in particular to a thread surface treatment device for a petroleum drill pipe structure. Background Art

[0002] The drill pipe is connected by threads at both ends when in use. During the use of the drill pipe, the force at the threaded connection mainly acts on the side of the thread. After the drill pipe thread processing is completed, in order to increase the service life of the drill pipe, the thread of the drill pipe is generally sandblasted. The thread surface after sandblasting will form a concave-convex structure to increase the surface hardness. However, when the existing device sandblasts the side of the thread, the distance between the nozzle and the thread surface is fixed, and it is impossible to make corresponding adjustments according to the different depths of the thread groove. As a result, when sandblasting the drill pipe with a deeper thread groove, the sandblasting medium sprayed by the nozzle will stay in the deep thread groove, causing the sandblasting medium subsequently sprayed by the nozzle to collide with the previous medium, reducing the force of the sandblasting medium, resulting in poor thread processing effect when the sandblasting medium acts on the bottom of the side of the thread groove, affecting the meshing performance and sealing of the thread. Summary of the invention

[0003] The present invention provides a device for treating the thread surface of a petroleum drill pipe structure, which is designed to solve the problem that the existing device cannot be adjusted according to the depth of the thread groove, resulting in poor processing effect of the sprayed sandblasting medium on the bottom area of ​​the thread groove when processing a drill pipe with a deeper thread groove.

[0004] The technical solution is: a thread surface treatment device for a petroleum drill pipe structure, comprising a support platform, the support platform is slidably connected to a symmetrically distributed rotating frame, an elastic rod is arranged between the rotating frame and the support platform, the support platform is fixedly connected to a lifting frame, the lifting frame is slidably connected to a slider, the slider of the lifting frame is rotatably connected to a rotating shaft, the rotating shaft is fixedly connected to a support frame, the support frame is rotatably connected to an adjustable elastic telescopic rod, a motor is fixedly connected to a side of the support frame close to the adjustable elastic telescopic rod, the output shaft of the motor is transmission-connected to the telescopic end of the adjustable elastic telescopic rod through a conical wheel, and the support frame is rotatably connected to the slider of the lifting frame. An adjusting elastic telescopic rod is fixed with a bidirectional lead screw, the bidirectional lead screw is threadedly connected with a sliding block that slides with the support frame, the sliding block is rotatably connected with a positioning frame, the positioning frame is provided with a spray gun, the sliding block is fixed with a first push rod, the telescopic end of the first push rod is fixed with a detection tube, the lower side of the detection tube is slidably connected with a detection rod and a limit plate, a spring is provided between the detection rod and the detection tube, the adjusting elastic telescopic rod is rotatably connected with a hydraulic ring that is fixed with the support frame, the adjusting elastic telescopic rod and the detection tube are both connected with the hydraulic ring, and a measuring component for adjusting the angle of the spray gun is provided on the sliding block.

[0005] It is further explained that the detection tube is provided with a through hole, the thickness of the limit plate is greater than the diameter of the through hole on the detection tube, the limit plate is sealed and matched with the adjacent through hole on the detection tube, and there is damping between the limit plate and the detection tube.

[0006] Further description, the measuring component includes a sliding tube, the sliding tube is fixed to the sliding block, the sliding tube is slidably connected to a symmetrically distributed first elastic telescopic rod, the symmetrically distributed first elastic telescopic rods are all connected to the detection rod, the telescopic ends of the symmetrically distributed first elastic telescopic rods are all squeezed and matched with the support frame, the sliding block is rotatably connected to a worm, the symmetrically distributed first elastic telescopic rods are jointly fixed to a U-shaped frame, the worm is provided with equidistantly distributed sliding grooves, the equidistantly distributed sliding grooves of the worm are all squeezed and matched with the U-shaped frame, and the positioning of the sliding block The frame is fixedly connected with a worm gear, and the worm gear is transmission-connected to the worm gear; a side of the detection rod away from the detection tube is slidably connected with a bidirectional elastic telescopic plate; a spring is arranged between the bidirectional elastic telescopic plate and the detection rod; both telescopic ends of the bidirectional elastic telescopic plate are hinged with detection plates; both telescopic ends of the bidirectional elastic telescopic plate are fixedly connected with a first telescopic rod connected with the detection rod; a sliding block is ball-jointed at the telescopic end of the first telescopic rod; the sliding block is slidably connected to the adjacent detection plate; a limiting component for limiting the movement of the bidirectional elastic telescopic plate is arranged on the detection rod.

[0007] Further description, the limiting assembly includes a sealing frame, the sealing frame is slidably connected to the detection rod, the sealing frame is extruded and matched with the bidirectional elastic telescopic plate, the detection rod is provided with a through hole, the sealing frame is sealingly matched with the through hole on the detection rod, the sealing frame is fixedly connected with an extrusion ring on the side away from the bidirectional elastic telescopic plate, the first telescopic rod is slidably connected with a sealing ring, the first telescopic rod is provided with a through hole, the sealing ring is sealingly matched with the through hole on the adjacent first telescopic rod, the sealing ring is extruded and matched with the extrusion ring, and a fixing assembly for fixing the drill rod is provided on the support platform.

[0008] It is further explained that a slope is provided on a side of the extrusion ring close to the sealing ring, and the slope faces outward.

[0009] Further description, the fixed assembly includes a second push rod, the second push rod is fixedly connected to a side of the support platform close to the motor, the telescopic end of the second push rod is rotatably connected to a hydraulic shell, the hydraulic shell is fixedly connected and communicated with a circumferentially distributed positioning elastic telescopic rod, the telescopic end of the positioning elastic telescopic rod is fixedly connected to a friction block, the hydraulic shell is slidably connected to an extrusion frame, and the extrusion frame is extrusion-matched with the second push rod.

[0010] Further description, it also includes an adjustment mechanism, which is arranged on the support platform, and the adjustment mechanism is used to adjust the moving distance of the sliding block, and the adjustment mechanism includes a symmetrically distributed second elastic telescopic rod, the symmetrically distributed second elastic telescopic rod is all fixedly connected to the upper side surface of the support platform, and the telescopic ends of the symmetrically distributed second elastic telescopic rods are commonly fixedly connected to an L-shaped frame, the side of the L-shaped frame close to the rotating frame is fixedly connected to a third elastic telescopic rod, the side of the L-shaped frame close to the third elastic telescopic rod is slidably connected to a sliding plate, the sliding plate is fixedly connected to the telescopic end of the third elastic telescopic rod, the side of the support frame away from the motor is fixedly connected to the second telescopic rod, the second telescopic rod is connected to the third elastic telescopic rod, the telescopic end of the second telescopic rod is fixedly connected to an L-shaped plate, the L-shaped plate is slidably connected to the support frame, the L-shaped plate is extruded and matched with the telescopic end of the adjacent first elastic telescopic rod, and a rotating component for adjusting the angle of the support frame is provided on the L-shaped frame.

[0011] To further illustrate, the inner diameter of the third elastic telescopic rod is the same as that of the second telescopic rod, and the distances moved by the telescopic ends of the two are the same.

[0012] Further description, the rotating assembly includes a fourth elastic telescopic rod, the fourth elastic telescopic rod is fixed to the side of the L-shaped frame away from the third elastic telescopic rod, the slider of the lifting frame is fixed to the third telescopic rod, the third telescopic rod is connected to the second telescopic rod, the telescopic end of the third telescopic rod is fixed to the fourth telescopic rod, the fourth telescopic rod is connected to the fourth elastic telescopic rod, the side of the rotating shaft away from the third telescopic rod is fixed to an adjusting frame, the fourth telescopic rod is ball-connected with a slider, and the slider is slidably connected to the adjusting frame.

[0013] It is further explained that the height of the telescopic end of the fourth elastic telescopic rod after being fully compressed is the same as the height of the sliding plate.

[0014] The beneficial effects of the present invention are as follows: 1. When the threaded portion of a drill rod is sandblasted, the present invention places the bidirectional lead screw in a state of minimum rotation speed, moves the detection rod upward to adjust the telescopic end of the elastic telescopic rod to move rightward, and adjusts the transmission ratio of the bidirectional lead screw to the motor, so that the rotation speed of the bidirectional lead screw varies with the depth of the thread groove, thereby avoiding the situation in which the spray gun moves too fast when processing a drill rod with a deep thread groove, resulting in poor surface treatment effect deep in the thread, affecting the meshing performance and sealing of the thread.

[0015] 2. When the spray gun moves, the present invention detects the deflection angle of the thread through the detection plate, thereby adjusting the angle of the spray gun so that the spray gun and the inclined surface of the thread groove are at a suitable angle, thereby improving the processing efficiency.

[0016] 3. When measuring the inclination angle of the threaded portion of the drill rod, the present invention first measures the length of the threaded portion through the sliding plate, and then measures the difference between the two ends of the threaded portion through the fourth elastic telescopic rod, thereby driving the support frame to rotate, so that the support frame is flush with the inclined surface of the threaded portion of the drill rod, so that the thread surface can be processed more evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the hydraulic housing and the second elastic telescopic rod of the present invention;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the lifting frame, the rotating shaft and the supporting frame of the present invention;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the sliding tube, the first elastic telescopic rod and the worm gear of the present invention;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the bidirectional elastic telescopic plate, the detection plate and the first telescopic rod of the present invention;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the sealing frame, the extrusion ring and the sealing ring of the present invention;

[0023] Figure 7 It is a three-dimensional structural schematic diagram of the worm, U-shaped frame and worm wheel of the present invention;

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the second push rod, the hydraulic housing and the extrusion frame of the present invention;

[0025] Fig. 9 It is a schematic diagram of the three-dimensional structure of the sliding plate, the second telescopic rod and the L-shaped plate of the present invention;

[0026] Fig.10 It is a three-dimensional structural schematic diagram of the support frame, L-shaped frame and sliding plate of the present invention;

[0027] Fig.11 It is a schematic diagram of the three-dimensional structure of the second telescopic rod, the L-shaped plate and the adjustment frame of the present invention;

[0028] Fig.12 It is a schematic diagram of the three-dimensional structure of the third telescopic rod, the fourth telescopic rod and the adjustment frame of the present invention.

[0029] In the above figures: 1-support platform, 2-rotating frame, 3-lifting frame, 4-rotating shaft, 5-support frame, 6-adjustable elastic telescopic rod, 7-motor, 8-bidirectional lead screw, 9-sliding block, 10-first push rod, 11-detection tube, 12-detection rod, 13-limiting plate, 14-hydraulic ring, 21-sliding tube, 22-first elastic telescopic rod, 23-worm, 24-U-shaped frame, 25-worm gear, 26-bidirectional elastic telescopic plate, 27-detection plate , 28-first telescopic rod, 31-sealing frame, 32-extrusion ring, 33-sealing ring, 41-second push rod, 42-hydraulic shell, 43-positioning elastic telescopic rod, 44-extrusion frame, 51-second elastic telescopic rod, 52-L-shaped frame, 53-third elastic telescopic rod, 54-sliding plate, 55-second telescopic rod, 56-L-shaped plate, 61-fourth elastic telescopic rod, 62-third telescopic rod, 63-fourth telescopic rod, 64-adjusting frame. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0031] When the existing device is used to sandblast a drill pipe with a deeper thread groove, the sandblasting medium ejected from the nozzle will collide with the deeper position of the thread groove, and the kinetic energy of the sandblasting medium will be reduced. Since the sandblasting medium is in the deeper position of the thread groove, the sandblasting medium cannot quickly leave the thread groove and stays briefly in the thread groove, causing some of the sandblasting medium subsequently ejected from the nozzle to collide with the previously retained medium, resulting in some of the sandblasting medium being unable to directly act on the bottom of the side of the thread groove, resulting in poor thread processing effect.

[0032] Embodiment 1: A device for treating the surface of a thread of a petroleum drill pipe structure, such as Figure 1-Figure 5As shown, it includes a support platform 1, on which two rotating frames 2 symmetrically distributed front and back are slidably connected, an elastic rod is arranged between the rotating frame 2 and the support platform 1, and the two rotating frames 2 are rotatably connected to electric wheels, which drive the drill rod to rotate, and a lifting frame 3 is fixedly connected to the right part of the upper side of the support platform 1, and a slider is slidably connected to the front side of the lifting frame 3, and a rotating shaft 4 is rotatably connected to the front side of the slider of the lifting frame 3, and a support frame 5 is fixedly connected to the front side of the rotating shaft 4, and the right part of the support frame 5 is rotatably connected to an adjustable elastic telescopic rod 6, and the adjustable elastic telescopic rod 6 is filled with hydraulic oil, and the telescopic end of the adjustable elastic telescopic rod 6 is fixedly connected to a grinding wheel, and a motor 7 is fixedly connected to the right side of the support frame 5, and the output shaft of the motor 7 is fixedly connected to the There is a conical wheel, which is frictionally driven with the grinding wheel and is used to drive the bidirectional screw 8 to rotate when sandblasting the drill rod. The diameter of the left side of the conical wheel is smaller than the diameter of the right side. When processing thread grooves of different depths, the speed of movement of the spray gun is adjusted. The support frame 5 is rotatably connected with the bidirectional screw 8. The right end of the bidirectional screw 8 is fixedly connected to the fixed part of the adjustable elastic telescopic rod 6. The bidirectional screw 8 is threadedly connected with a sliding block 9. The rear side of the sliding block 9 is rotatably connected with a positioning frame. The positioning frame is provided with a spray gun. The upper side of the sliding block 9 is slidably matched with the support frame 5. When the bidirectional screw 8 squeezes the sliding block 9 through the thread to move the sliding block 9, the support frame 5 limits the sliding block 9 to prevent the sliding block 9 from moving with The bidirectional lead screw 8 rotates together, and a first push rod 10 is fixedly connected to the front side of the sliding block 9, and a detection tube 11 is fixedly connected to the telescopic end of the first push rod 10. The detection tube 11 is filled with hydraulic oil, and a detection rod 12 is slidably connected to the lower side of the detection tube 11. A spring is arranged between the detection tube 11 and the detection rod 12, and a limit plate 13 is slidably connected to the lower side of the detection tube 11. There is a damping between the detection tube 11 and the limit plate 13 to prevent the limit plate 13 from moving independently relative to the detection tube 11. A through hole is provided on the lower side of the detection tube 11, and the thickness of the limit plate 13 is greater than the diameter of the through hole on the detection tube 11. The limit plate 13 is sealed and matched with the adjacent through hole on the detection tube 11 to prevent the detection rod 12 from being separated from the drill pipe thread. , the detection rod 12 is protruded from the detection tube 11 again, resulting in a change in the position of the telescopic end of the adjusting elastic telescopic rod 6. The middle part of the adjusting elastic telescopic rod 6 is rotatably connected to a hydraulic ring 14, and the hydraulic ring 14 is fixed to the support frame 5. A circumferentially distributed through hole is opened in the middle part of the adjusting elastic telescopic rod 6. The adjusting elastic telescopic rod 6 is connected to the hydraulic ring 14 through the circumferentially distributed through holes. The detection tube 11 and the hydraulic ring 14 are connected by a hose. The hydraulic ring 14 is filled with hydraulic oil, which is used to make the telescopic end of the adjusting elastic telescopic rod 6 drive the grinding wheel to move to the right after the detection rod 12 is squeezed, thereby increasing the transmission ratio between the conical wheel and the grinding wheel. A measuring component for adjusting the angle of the spray gun is provided on the sliding block 9.

[0033] like Figure 5-Figure 7As shown, the measuring assembly includes a sliding tube 21, the sliding tube 21 is fixedly connected to the sliding block 9, the left and right ends of the sliding tube 21 are slidably connected with the first elastic telescopic rod 22, the sliding tube 21 and the first elastic telescopic rod 22 are filled with hydraulic oil, a cavity is provided in the middle of the detection rod 12, the two first elastic telescopic rods 22 are connected to the cavity in the middle of the detection rod 12 through a hose, the cavity in the middle of the detection rod 12 is filled with hydraulic oil, the telescopic ends of the two first elastic telescopic rods 22 are squeezed and matched with the support frame 5, and the first elastic telescopic rods 22 are squeezed by the support frame 5. When the telescopic end of 22 is reached, the first elastic telescopic rod 22 drives the U-shaped frame 24 to move, so that the U-shaped frame 24 drives the worm 23 to rotate, and the sliding block 9 is connected to the worm 23 by rotation. The upper sides of the fixed parts of the two first elastic telescopic rods 22 are fixedly connected with the U-shaped frame 24. The worm 23 is provided with two sliding grooves equidistantly distributed on the left and right. The sliding groove on the worm 23 is a curved sliding groove. The U-shaped frame 24 is squeezed and matched with the two curved sliding grooves on the worm 23. When the first elastic telescopic rod 22 drives the U-shaped frame 24 to move, the U-shaped frame 24 squeezes the two curved grooves on the worm 23. The slide groove makes the worm 23 rotate, the positioning frame of the sliding block 9 is fixedly connected with a worm wheel 25, the worm wheel 25 is connected to the worm 23, the rotation of the worm 23 drives the worm wheel 25 to rotate, thereby changing the angle of the spray gun, the lower side of the detection rod 12 is slidably connected with a two-way elastic telescopic plate 26, the two telescopic ends of the two-way elastic telescopic plate 26 are oriented left and right, a spring is arranged between the two-way elastic telescopic plate 26 and the detection rod 12, the two telescopic ends of the two-way elastic telescopic plate 26 are hinged with a detection plate 27, and the two telescopic ends of the two-way elastic telescopic plate 26 are fixedly connected with The first telescopic rod 28 is connected to the middle cavity of the detection rod 12, and the telescopic end of the first telescopic rod 28 is ball-connected with a slider. The detection plate 27 is provided with a slide groove, and the slider is slidably connected in the slide groove of the adjacent detection plate 27. When the detection plate 27 rotates, the detection plate 27 squeezes the telescopic end of the first telescopic rod 28 through the adjacent slider. The first telescopic rod 28 is filled with hydraulic oil, so that the hydraulic oil in the first telescopic rod 28 enters the two first elastic telescopic rods 22. A limiting component for limiting the movement of the bidirectional elastic telescopic plate 26 is provided on the detection rod 12.

[0034] like Figure 4 and Figure 6As shown, the limiting assembly includes a sealing frame 31, which is slidably connected to the lower part of the detection rod 12, and the sealing frame 31 is squeezed and matched with the bidirectional elastic telescopic plate 26. The detection rod 12 is provided with a through hole, and the sealing frame 31 is sealed and matched with the through hole on the detection rod 12. After the bidirectional elastic telescopic plate 26 contacts the bottom of the thread groove, the bidirectional elastic telescopic plate 26 squeezes the sealing frame 31, so that the sealing frame 31 moves upward to seal the through hole on the detection rod 12, and prevents the bidirectional elastic telescopic plate 26 from moving downward. The upper side of the sealing frame 31 is fixedly connected with an extrusion ring 32, and the upper side of the extrusion ring 32 A slope is provided on the side surface, and the slope faces outward. The first telescopic rod 28 is slidably connected with a sealing ring 33. The first telescopic rod 28 is provided with a through hole. The sealing ring 33 is sealed and matched with the through hole on the adjacent first telescopic rod 28. When the sealing frame 31 drives the extrusion ring 32 to move upward, the extrusion ring 32 squeezes the two sealing rings 33 through the slope, so that the two sealing rings 33 move outward to seal the through hole on the adjacent first telescopic rod 28, and prevents the detection plate 27 from driving the telescopic end of the adjacent first telescopic rod 28 to move. A fixing component for fixing the drill rod is provided on the support platform 1.

[0035] like Figure 2 , Figure 8 and Fig. 9 As shown, the fixed assembly includes a second push rod 41, which is fixedly connected to the right side of the support platform 1, and the telescopic end of the second push rod 41 is rotatably connected to a hydraulic shell 42. The left part of the hydraulic shell 42 is fixedly connected and connected to four circumferentially distributed positioning elastic telescopic rods 43. The hydraulic shell 42 and the positioning elastic telescopic rod 43 are both filled with hydraulic oil. The telescopic end of the positioning elastic telescopic rod 43 is fixedly connected to a friction block. The telescopic end of the positioning elastic telescopic rod 43 moves outward to cause the friction block to squeeze the drill rod, thereby fixing the right end of the drill rod. The hydraulic shell 42 is slidably connected to an extrusion frame 44, and a round rod is fixedly connected to the right side of the extrusion frame 44. The round rod on the extrusion frame 44 is extruded and matched with the fixed part of the second push rod 41. After the round rod on the extrusion frame 44 contacts the fixed part of the second push rod 41, the extrusion frame 44 squeezes the hydraulic oil in the hydraulic shell 42 to the left, so that the telescopic ends of the four positioning elastic telescopic rods 43 move outward.

[0036] In this embodiment, the moving direction of two or more parts refers to the moving direction of the right part. When the staff uses the present device to perform sandblasting on the threads of the drill rod structure, they first direct the outer threads of the drill rod to the right, and place the drill rod on the two rotating racks 2 so that the drill rod contacts the electric wheels on the two rotating racks 2. Then, the drill rod is pushed to the right so that the right end of the threaded portion on the drill rod is located below the spray gun. During this process, the hydraulic housing 42 and the parts thereon enter the through hole on the drill rod. When the right end of the threaded portion is located below the spray gun, the staff starts the second push rod 41. When the axis of the drill rod is coaxial with the axis of the second push rod 41, the telescopic end of the second push rod 41 drives the hydraulic housing 42 to move to the right, and the hydraulic housing 42 drives the extrusion rack 44. The hydraulic shell 42 moves to the right relative to the extrusion frame 44, thereby increasing the pressure in the left chamber of the hydraulic shell 42, and pushing the hydraulic oil therein into the four positioning elastic telescopic rods 43. The telescopic end of the positioning elastic telescopic rod 43 drives the adjacent friction block to move outward. When the friction block contacts the inner wall of the drill rod through hole, the telescopic end of the positioning elastic telescopic rod 43 can no longer move outward, and the hydraulic shell 42 no longer moves to the right. The staff closes the second push rod 41 to complete the fixation of the drill rod.

[0037] After the drill rod is fixed as described above, the staff rotates the shaft 4, and the rotation of the shaft 4 drives the support frame 5 to rotate, and the support frame 5 drives the parts thereon to rotate, so that the degree of the angle between the support frame 5 and the horizontal plane is the same as the degree of the inclination of the threaded portion of the drill rod, and the shaft 4 rotates to drive the support frame 5. After the degree of the angle between the support frame 5 and the horizontal plane is the same as the degree of the inclination of the threaded portion of the drill rod, the support frame 5 is parallel to the side of the threaded portion of the drill rod, and the staff stops rotating the shaft 4. The staff fixes the shaft 4 on the slider of the lifting frame 3 through the existing device, and the support frame 5 stops rotating. , the staff starts the lifting frame 3, the lifting frame 3 drives the slider thereon to move downward, the slider drives the support frame 5 to move downward through the rotating shaft 4, the support frame 5 drives the parts thereon to move downward, as the support frame 5 moves downward, when the limit plate 13 approaches the thread on the surface of the drill pipe, the staff closes the lifting frame 3 and stops driving the support frame 5 to move downward, at this time the staff starts the first push rod 10, the telescopic end of the first push rod 10 drives the detection tube 11 to move downward, the detection tube 11 drives the detection rod 12 and the limit plate 13 to move downward, and the detection rod 12 drives the parts thereon to move downward.

[0038] In the process of the above-mentioned detection rod 12 driving the parts on it to move downward, the detection rod 12 drives the bidirectional elastic telescopic plate 26 to move downward (the two telescopic ends of the bidirectional elastic telescopic plate 26 are initially extended), and the bidirectional elastic telescopic plate 26 drives the two detection plates 27 and the two first telescopic rods 28 to move downward. In the process of the bidirectional elastic telescopic plate 26 moving downward, when the two telescopic ends of the bidirectional elastic telescopic plate 26 respectively contact the side surfaces of the adjacent thread teeth, as the detection rod 12 drives the bidirectional elastic telescopic plate 26 to move downward, the two telescopic ends of the bidirectional elastic telescopic plate 26 respectively drive the adjacent first telescopic rods 28 to gather in the middle When the detection plate 27 contacts the side surface of the thread tooth, the side surface of the thread tooth squeezes the adjacent detection plate 27, causing the detection plate 27 to rotate around the telescopic end of the adjacent bidirectional elastic telescopic plate 26. In the process of the thread tooth squeezing the detection plate 27, the detection plate 27 squeezes the telescopic end of the adjacent first telescopic rod 28 through the adjacent slider. The telescopic end of the first telescopic rod 28 moves to the left and the hydraulic oil inside it enters the cavity in the middle of the detection rod 12. The pressure in the cavity in the middle of the detection rod 12 increases, and the hydraulic oil in the cavity in the middle of the detection rod 12 enters the two first elastic telescopic rods 22, and the telescopic end in the first elastic telescopic rod 22 extends to the right.

[0039] In the process of the telescopic end of the first elastic telescopic rod 22 extending to the right, initially the telescopic end of the first elastic telescopic rod 22 on the right side contacts with the support frame 5, and the telescopic end of the first elastic telescopic rod 22 cannot move, and its fixed part moves to the left and drives the U-shaped frame 24 to move, and the U-shaped frame 24 drives the first elastic telescopic rod 22 on the left side to move to the left, and the U-shaped frame 24 squeezes the curved groove on the worm 23, so that the worm 23 drives the worm gear 25 to rotate, and the worm gear 25 drives the spray gun to rotate through the positioning frame, so that the angle between the spray gun and the side of the thread is 45°, so that the sandblasting medium can better act on the thread surface, and reduce the excessive wear of the abrasive while improving the processing efficiency. When the lower side of the bidirectional elastic telescopic plate 26 contacts with the tooth bottom of the thread, the bidirectional elastic telescopic plate 26 no longer moves downward, and the detection rod 12 is relative to The bidirectional elastic telescopic plate 26 moves downward and compresses the adjacent spring. When the upper side of the bidirectional elastic telescopic plate 26 contacts the lower side of the sealing frame 31, the bidirectional elastic telescopic plate 26 squeezes the sealing frame 31 upward, and the sealing frame 31 moves upward to seal the adjacent through hole on the detection rod 12, so that the detection rod 12 no longer moves downward. In this process, the sealing frame 31 drives the extrusion ring 32 to move upward, and the inclined surface on the extrusion ring 32 squeezes the lower part of the sealing ring 33, so that the sealing ring 33 moves rightward to seal the through hole of the adjacent first telescopic rod 28. The telescopic end of the first telescopic rod 28 cannot continue to move to the left, the two detection plates 27 no longer rotate, the telescopic end of the first elastic telescopic rod 22 no longer extends, the fixing part of the first elastic telescopic rod 22 no longer drives the U-shaped frame 24 to move, and the worm gear 25 no longer drives the spray gun to rotate.

[0040] After the sealing frame 31 seals the through hole on the detection rod 12, the detection tube 11 drives the limit plate 13 to move downward relative to the detection rod 12 and compresses the adjacent spring. The pressure in the upper chamber of the detection tube 11 increases, and the hydraulic oil therein enters the adjusting elastic telescopic rod 6 through the hydraulic ring 14, so that the telescopic end of the adjusting elastic telescopic rod 6 drives the grinding wheel to move right, thereby increasing the transmission ratio between the grinding wheel and the conical wheel, thereby increasing the rotation speed of the bidirectional lead screw 8 and improving the moving speed of the spray gun. Initially, the transmission ratio between the grinding wheel and the conical wheel is the smallest, so as to avoid the movement speed of the spray gun being too large when the thread groove is deep. As a result, the deeper position of the thread groove cannot be fully processed. As the detection tube 11 drives the limit plate 13 to move downward through damping, when the limit plate 13 contacts the top of the threaded part, the limit plate 13 no longer moves downward. As the detection tube 11 moves downward, the limit plate 13 gradually blocks the adjacent through holes on the detection tube 11. When the limit plate 13 completely blocks the adjacent through holes on the detection tube 11, the detection tube 11 cannot move downward, the telescopic end of the elastic telescopic rod 6 is adjusted to no longer move to the right, and the transmission ratio between the grinding wheel and the conical wheel no longer changes. The staff closes the first push rod 10.

[0041] After the above-mentioned adjustment detection tube 11 no longer moves downward, the staff starts the first push rod 10, so that the telescopic end of the first push rod 10 drives the parts thereon to move upward. In this process, the limit plate 13 seals the adjacent through hole on the detection tube 11, and the limit plate 13 does not move downward under the effect of damping between the detection tube 11, so that the telescopic end of the adjustment elastic telescopic rod 6 cannot move, and the sealing ring 33 seals the adjacent first telescopic rod 28, so that the telescopic end of the first telescopic rod 28 and the telescopic end of the first elastic telescopic rod 22 cannot move. The staff starts the rotating frame 2, and the electric rotary wheel on the rotating frame 2 rotates. The electric rotary wheel drives the drill rod to rotate through friction, and the drill rod drives the hydraulic shell 42 and the parts thereon to rotate through the positioning elastic telescopic rod 43. Then the staff starts the motor 7, and the output shaft of the motor 7 drives the grinding wheel on the adjustment elastic telescopic rod 6 to rotate through the conical wheel, and the grinding wheel drives the adjustment elastic telescopic rod 6 to rotate. The adjustment elastic telescopic rod 6 drives the bidirectional screw 8 to rotate, and the bidirectional screw 8 squeezes the sliding block 9 through the thread, so that the sliding block 9 brings After the first elastic telescopic rod 22 on the right side contacts with the support frame 5 again, the staff closes the two rotating frames 2, the motor 7 and the spray gun, the drill rod no longer rotates, the sliding block 9 no longer drives the parts thereon to move and completes the processing of the threaded portion of the drill rod.

[0042] After completing the processing of the threaded portion of the drill pipe as described above, the staff starts the first push rod 10, and the telescopic end of the first push rod 10 drives the parts thereon to move downward. When the bidirectional elastic telescopic plate 26 contacts the bottom of the thread again, the staff closes the first push rod 10. At this time, the bidirectional elastic telescopic plate 26 and the two detection plates 27 are both in contact with the thread groove. The staff starts the motor 7, and the bidirectional lead screw 8 drives the sliding block 9 to rotate again, so that the two detection plates 27 and the bidirectional elastic telescopic plate 26 move along the thread groove of the drill pipe, and the sand material remaining in the thread groove of the drill pipe is scraped and cleaned. When the sliding block 9 repeats the above process and moves left and right by one After the cleaning of the thread groove is completed, the staff turns off the motor 7 and starts the first push rod 10 again, so that the parts on the first push rod 10 move upward and reset again. When the telescopic end of the first push rod 10 is reset, the staff moves the limit plate 13 downward to release the seal of the detection tube 11. The detection tube 11 moves downward and resets under the push of the adjacent spring and extracts the hydraulic oil in the adjusting elastic telescopic rod 6, so that the telescopic end of the adjusting elastic telescopic rod 6 moves to the left and resets. When the detection tube 11 is reset, the staff moves the sealing frame 31 downward and moves the two sealing rings 33 to the middle to release the sealing of the detection rod 12 The seal of the first telescopic rod 28 causes the telescopic end of the first elastic telescopic rod 22 to be retracted and reset. The hydraulic oil in the first elastic telescopic rod 22 enters the cavity in the middle of the detection rod 12, so that the telescopic end of the first telescopic rod 28 drives the adjacent detection plate 27 to rotate outward and reset. In this process, the bidirectional elastic telescopic plate 26 moves downward and resets under the push of the adjacent spring. After the bidirectional elastic telescopic plate 26 is reset, the staff rotates the shaft 4 in the opposite direction, and the shaft 4 drives the support frame 5 to rotate. When the support frame 5 is horizontal, the staff stops rotating the shaft 4, and the staff opens the second push rod 41 to move the second push rod 41 to the left. The second push rod 41 extends out, and the telescopic end of the second push rod 41 drives the parts thereon to move to the left. The squeezing force of the fixed part of the second push rod 41 on the extrusion frame 44 is reduced, and the pressure in the positioning elastic telescopic rod 43 is reduced. The telescopic end of the positioning elastic telescopic rod 43 drives the adjacent friction block to move downward, releasing the fixation of the drill pipe, and increasing the pressure in the hydraulic shell 42 to push the extrusion frame 44 to move to the right and reset. When the telescopic end of the positioning elastic telescopic rod 43 does not move downward, the extrusion frame 44 no longer moves to the right and the device is reset. The staff takes out the processed drill pipe, and then repeats the above process to complete the processing of the gas drill pipe.

[0043] When the axis of the drill rod is not coaxial with the axis of the second push rod 41, taking the example of the drill rod axis being located on the upper side of the axis of the second push rod 41, as the telescopic ends of the four positioning elastic telescopic rods 43 move outward, when the friction block on the lower positioning elastic telescopic rod 43 contacts the drill rod, the telescopic end of the lower positioning elastic telescopic rod 43 squeezes the drill rod downward through the friction block, causing the drill rod to move downward and squeeze the electric wheels on the two rotating frames 2, and the front rotating frame 2 drives the parts thereon to move forward. When the squeezing frame 44 contacts the fixed part of the second push rod 41, the staff closes the second push rod 41, and the telescopic end of the lower positioning elastic telescopic rod 43 no longer squeezes the drill rod downward, the drill rod no longer moves downward, the two rotating frames 2 no longer move to the front and rear sides and completes the fixation of the drill rod. Thereafter, the staff repeats the above process to process the threaded portion of the drill rod.

[0044] After the processing is completed, the staff opens the second push rod 41, extends the second push rod 41 to the left, and repeats the above process to release the fixation of the drill rod. The pressure on the drill rod is reduced, and the rotating frame 2 drives the parts thereon to move backward and reset under the push of the adjacent elastic rod.

[0045] When processing different drill pipes, the inclination angles of the threaded parts of different types of drill pipes are different, but the angles of the spray guns in existing devices are mostly fixed, resulting in different angles between the spray gun and the two sides of the thread groove when the spray gun is processing the threaded part, making the spraying effect on the surface of the drill pipe threaded part uneven.

[0046] Embodiment 2: Based on embodiment 1, Figure 9-12As shown, it also includes an adjustment mechanism, which is arranged on the support platform 1, and is used to adjust the moving distance of the sliding block 9. The adjustment mechanism includes two second elastic telescopic rods 51 which are symmetrically distributed on the left and right. The two second elastic telescopic rods 51 are fixedly connected to the right part of the upper side surface of the support platform 1, and the telescopic ends of the two second elastic telescopic rods 51 are commonly fixedly connected to an L-shaped frame 52. The L-shaped frame 52 is composed of a cross bar and a vertical rod. The vertical rod is located at the right end of the cross bar. The left side of the cross bar on the L-shaped frame 52 is fixedly connected to a third elastic telescopic rod 53. The left side of the cross bar on the L-shaped frame 52 is slidably connected to a sliding plate 54. The sliding plate 54 is fixedly connected to the telescopic end of the third elastic telescopic rod 53. When the drill rod moves to the right, the distance of the left side of the drill rod threaded portion squeezing the sliding plate 54 is measured, thereby measuring the length of the drill rod threaded portion. A second telescopic rod 55 is fixedly connected to the left part, and the second telescopic rod 55 and the parts connected thereto are filled with rear hydraulic oil. The left part of the second telescopic rod 55 is connected to the right part of the third elastic telescopic rod 53, and an L-shaped plate 56 is fixedly connected to the telescopic end of the second telescopic rod 55. The inner diameter of the third elastic telescopic rod 53 and the second telescopic rod 55 are the same, and the telescopic ends of the two move the same distance. When the sliding plate 54 moves to the right, the second telescopic rod 55 drives the L-shaped plate 56 to move to the right synchronously. The L-shaped plate 56 is slidably connected to the support frame 5, and the L-shaped plate 56 is squeezed and matched with the telescopic end of the first elastic telescopic rod 22 on the left side. After the spray gun moves to the left side of the threaded portion of the drill pipe, the L-shaped plate 56 pushes the first elastic telescopic rod 22 on the left side to move to the right, changing the angle of the spray gun. A rotating component for adjusting the angle of the support frame 5 is provided on the L-shaped frame 52.

[0047] like Figure 9-12As shown, the rotating assembly includes a fourth elastic telescopic rod 61, and the fourth elastic telescopic rod 61 and the parts connected thereto are filled with hydraulic oil. The fourth elastic telescopic rod 61 is fixedly connected to the right part of the cross bar on the L-shaped frame 52. The height of the telescopic end of the fourth elastic telescopic rod 61 after being fully compressed is the same as the height of the sliding plate 54. When the telescopic end of the fourth elastic telescopic rod 61 moves downward, it is used to make the angle between the adjustment frame 64 and the horizontal plane the same as the inclination angle of the telescopic end of the fourth elastic telescopic rod 61 and the top of the L-shaped frame 52 and the inclination direction is opposite. The front side of the slider of the lifting frame 3 is fixedly connected to the third telescopic rod 62, and the telescopic end of the third telescopic rod 62 faces the left side. The left part of the retractable rod 62 is connected with the right part of the second telescopic rod 55. When the telescopic end of the second telescopic rod 55 moves to the right, the telescopic end of the third telescopic rod 62 is driven to move to the right. The upper side of the telescopic end of the third telescopic rod 62 is fixedly connected with the fourth telescopic rod 63. The upper part of the fourth telescopic rod 63 is connected with the lower part of the fourth elastic telescopic rod 61. When the threaded part of the drill rod squeezes the telescopic end of the fourth elastic telescopic rod 61 downward, the telescopic end of the fourth telescopic rod 63 moves downward to drive the adjusting frame 64 to rotate. The left side of the rotating shaft 4 is fixedly connected with the adjusting frame 64. The lower side surface of the adjusting frame 64 is provided with a slide groove. The fourth telescopic rod 63 is ball-connected with a slider, and the slider slides in the slide groove of the adjusting frame 64.

[0048] In this embodiment, the support frame 5 is initially tilted, forming a certain angle with the horizontal direction, and when the telescopic end of the fourth elastic telescopic rod 61 is completely compressed, the support frame 5 is horizontal. In the above-mentioned process of moving the drill rod to the right, when the left side of the threaded portion of the drill rod contacts the sliding plate 54, the drill rod pushes the sliding plate 54 to move to the right, and the sliding plate 54 squeezes the telescopic end of the third elastic telescopic rod 53 to the right. When the telescopic end of the third elastic telescopic rod 53 is retracted and the hydraulic oil in it enters the second telescopic rod 55, the telescopic end of the second telescopic rod 55 moves to the right, and the second telescopic rod 55 moves to the right. The telescopic end of the rod 55 drives the L-shaped plate 56 to move rightward, so that the L-shaped plate 56 moves synchronously with the left side of the threaded portion of the drill rod, thereby determining the length of the threaded portion of the drill rod, so that when the sliding block 9 moves to the left, when the first elastic telescopic rod 22 on the left side contacts the L-shaped plate 56 and cannot move to the right, the staff adjusts the direction of the output shaft of the motor 7 and changes the direction of the bidirectional screw 8, so that the bidirectional screw 8 drives the sliding block 9 to move to the right, avoiding the sliding block 9 from continuing to move to the left after passing the left side of the threaded portion, increasing the distance the nozzle moves, and reducing the processing efficiency.

[0049] During the process of the telescopic end of the second telescopic rod 55 moving to the right, the hydraulic oil in the second telescopic rod 55 enters the third telescopic rod 62, pushing the telescopic end of the third telescopic rod 62 to move to the right, and the telescopic end of the third telescopic rod 62 drives the fourth telescopic rod 63 to move. When the right end of the drill rod contacts the telescopic end of the fourth elastic telescopic rod 61, as the drill rod moves to the right, the threaded portion of the drill rod presses the telescopic end of the fourth elastic telescopic rod 61 downward, so that the hydraulic oil in the fourth elastic telescopic rod 61 enters the fourth telescopic rod 63, and the telescopic end of the fourth telescopic rod 63 moves downward to pull the adjusting frame 64 downward, so that the adjusting frame 64 rotates around the rotating shaft 4, and the rotation of the adjusting frame 64 drives the supporting frame 5 to rotate through the rotating shaft 4. As the drill rod moves to the right, when the right side surface of the drill rod contacts the L-shaped frame 52, the staff stops pushing the drill rod, and the sliding plate 54 no longer moves to the right. The telescopic end of the second telescopic rod 55 no longer drives the L-shaped plate 56 to move to the right, the telescopic end of the third telescopic rod 62 no longer drives the fourth telescopic rod 63 to move to the right, the inclined surface of the threaded portion of the drill rod no longer continues to squeeze the telescopic end of the fourth elastic telescopic rod 61 downward, the telescopic end of the fourth telescopic rod 63 no longer pulls the adjusting frame 64 downward, and the adjusting frame 64 no longer drives the support frame 5 to rotate through the rotating shaft 4. At this time, the support frame 5 is parallel to the inclined surface of the threaded portion of the drill rod. The staff repeats the above process to start the second push rod 41 to complete the fixation of the drill rod and starts the motor 7 to drive the sliding block 9 to move to the left. When the first elastic telescopic rod 22 on the left side contacts the L-shaped plate 56, the L-shaped plate 56 squeezes the first elastic telescopic rod 22 on the left side to the right, so that the first elastic telescopic rod 22 on the left side repeats the above process to drive the worm 23 to rotate to change the direction of the spray gun and complete the processing of the drill rod.

[0050] After the above-mentioned drill rod processing is completed, the staff repeats the above process to release the fixation of the drill rod, and moves the drill rod to the left to take it out. The drill rod moves to the left, and the inclined surface of the threaded part on it reduces the squeezing force on the fourth elastic telescopic rod 61. The telescopic end of the fourth elastic telescopic rod 61 moves upward and resets, and the telescopic end of the fourth telescopic rod 63 moves upward and resets. The telescopic end of the fourth telescopic rod 63 moves upward and squeezes the adjustment frame 64, so that the support frame 5 rotates in the opposite direction and resets.

[0051] During the upward movement of the telescopic end of the fourth elastic telescopic rod 61, the drill rod moves to the left to reduce the squeezing force on the sliding plate 54, and the telescopic end of the third elastic telescopic rod 53 pushes the sliding plate 54 to move to the left and reset. During this process, the third elastic telescopic rod 53 extracts the hydraulic oil in the second telescopic rod 55, so that the telescopic end of the second telescopic rod 55 drives the L-shaped plate 56 to move to the left and reset. The second telescopic rod 55 extracts the hydraulic oil in the third telescopic rod 62, and the telescopic end of the third telescopic rod 62 drives the fourth telescopic rod 63 to move to the left and reset. When the drill rod is separated from the sliding plate 54, the sliding plate 54 completes the reset and no longer moves to the left. The telescopic end of the second telescopic rod 55 no longer drives the L-shaped plate 56 to move to the left, and the support frame 5 no longer rotates to complete the reset.

[0052] The above is a detailed introduction to the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A thread surface treatment device for a petroleum drill pipe structure, comprising a support platform (1), wherein the support platform (1) is slidably connected to a symmetrically distributed rotating frame (2), an elastic rod is arranged between the rotating frame (2) and the support platform (1), the support platform (1) is fixedly connected to a lifting frame (3), the lifting frame (3) is slidably connected to a slider, the slider of the lifting frame (3) is rotatably connected to a rotating shaft (4), and the rotating shaft (4) is fixedly connected to a support frame (5), wherein: The invention also comprises an adjustable elastic telescopic rod (6), the adjustable elastic telescopic rod (6) being rotatably connected to the support frame (5), a motor (7) being fixedly connected to a side of the support frame (5) close to the adjustable elastic telescopic rod (6), an output shaft of the motor (7) being transmission-connected to the telescopic end of the adjustable elastic telescopic rod (6) via a conical wheel, the support frame (5) being rotatably connected to a bidirectional lead screw (8) fixedly connected to the adjustable elastic telescopic rod (6), the bidirectional lead screw (8) being threadably connected to a sliding block (9) slidably matched with the support frame (5), the sliding block (9) being rotatably connected to a positioning frame, and the positioning frame being provided with A spray gun is provided, wherein the sliding block (9) is fixedly connected to a first push rod (10), the telescopic end of the first push rod (10) is fixedly connected to a detection tube (11), the lower side of the detection tube (11) is slidably connected to a detection rod (12) and a limit plate (13), a spring is provided between the detection rod (12) and the detection tube (11), the adjustable elastic telescopic rod (6) is rotatably connected to a hydraulic ring (14) fixed to the support frame (5), the adjustable elastic telescopic rod (6) and the detection tube (11) are both connected to the hydraulic ring (14), and a measuring component for adjusting the angle of the spray gun is provided on the sliding block (9); The measuring assembly comprises a slide tube (21), the slide tube (21) being fixedly connected to the sliding block (9), the slide tube (21) being slidably connected to symmetrically distributed first elastic telescopic rods (22), the symmetrically distributed first elastic telescopic rods (22) being in communication with the detection rod (12), the telescopic ends of the symmetrically distributed first elastic telescopic rods (22) being pressed and matched with the support frame (5), the sliding block (9) being rotatably connected to a worm (23), the symmetrically distributed first elastic telescopic rods (22) being jointly fixedly connected to a U-shaped frame (24), the worm (23) being provided with equidistantly distributed slide grooves, the equidistantly distributed slide grooves of the worm (23) being pressed and matched with the U-shaped frame (24), the positioning frame of the sliding block (9) being fixedly connected to the worm (23), and the worm (23) being provided with equidistantly distributed slide grooves. The worm wheel (25) is transmission-connected to the worm (23); a side of the detection rod (12) away from the detection tube (11) is slidably connected to a bidirectional elastic telescopic plate (26); a spring is provided between the bidirectional elastic telescopic plate (26) and the detection rod (12); both telescopic ends of the bidirectional elastic telescopic plate (26) are hinged to a detection plate (27); both telescopic ends of the bidirectional elastic telescopic plate (26) are fixedly connected to a first telescopic rod (28) connected to the detection rod (12); a sliding block is ball-connected at the telescopic end of the first telescopic rod (28); the sliding block is slidably connected to the adjacent detection plate (27); and a limiting component for limiting the movement of the bidirectional elastic telescopic plate (26) is provided on the detection rod (12).

2. The oil drill pipe structure thread surface treatment device according to claim 1 is characterized by: The detection tube (11) is provided with a through hole, the thickness of the limiting plate (13) is greater than the diameter of the through hole on the detection tube (11), the limiting plate (13) is sealed with adjacent through holes on the detection tube (11), and there is damping between the limiting plate (13) and the detection tube (11).

3. The oil drill pipe structure thread surface treatment device according to claim 1 is characterized by: The limiting assembly comprises a sealing frame (31), the sealing frame (31) is slidably connected to the detection rod (12), the sealing frame (31) is pressed and matched with the bidirectional elastic telescopic plate (26), the detection rod (12) is provided with a through hole, the sealing frame (31) is sealed and matched with the through hole on the detection rod (12), a side of the sealing frame (31) away from the bidirectional elastic telescopic plate (26) is fixedly connected with an extrusion ring (32), the first telescopic rod (28) is slidably connected with a sealing ring (33), the first telescopic rod (28) is provided with a through hole, the sealing ring (33) is sealed and matched with the through hole on the adjacent first telescopic rod (28), the sealing ring (33) is pressed and matched with the extrusion ring (32), and a fixing assembly for fixing the drill rod is provided on the support platform (1).

4. The oil drill pipe structure thread surface treatment device according to claim 3 is characterized by: A slope is provided on one side of the extrusion ring (32) close to the sealing ring (33), and the slope faces outward.

5. The oil drill pipe structure thread surface treatment device according to claim 3 is characterized by: The fixing assembly comprises a second push rod (41), the second push rod (41) being fixedly connected to a side of the support platform (1) close to the motor (7), the telescopic end of the second push rod (41) being rotatably connected to a hydraulic shell (42), the hydraulic shell (42) being fixedly connected to and communicating with a circumferentially distributed positioning elastic telescopic rod (43), the telescopic end of the positioning elastic telescopic rod (43) being fixedly connected to a friction block, the hydraulic shell (42) being slidably connected to an extrusion frame (44), the extrusion frame (44) being extrusion-matched with the second push rod (41).

6. The oil drill pipe structure thread surface treatment device according to claim 5 is characterized by: The invention also comprises an adjustment mechanism, the adjustment mechanism being arranged on the support platform (1), the adjustment mechanism being used to adjust the moving distance of the sliding block (9), the adjustment mechanism comprising symmetrically distributed second elastic telescopic rods (51), the symmetrically distributed second elastic telescopic rods (51) being fixedly connected to the upper side surface of the support platform (1), the telescopic ends of the symmetrically distributed second elastic telescopic rods (51) being commonly fixedly connected to an L-shaped frame (52), the side of the L-shaped frame (52) close to the rotating frame (2) being fixedly connected to a third elastic telescopic rod (53), the side of the L-shaped frame (52) close to the third elastic telescopic rod (53) being slidably connected to the rotating frame (2) A sliding plate (54) is provided, the sliding plate (54) being fixedly connected to the telescopic end of the third elastic telescopic rod (53), a second telescopic rod (55) being fixedly connected to the side of the support frame (5) away from the motor (7), the second telescopic rod (55) being communicated with the third elastic telescopic rod (53), an L-shaped plate (56) being fixedly connected to the telescopic end of the second telescopic rod (55), the L-shaped plate (56) being slidably connected to the support frame (5), the L-shaped plate (56) being pressed and matched with the telescopic end of the adjacent first elastic telescopic rod (22), and a rotating component for adjusting the angle of the support frame (5) being provided on the L-shaped frame (52).

7. The oil drill pipe structure thread surface treatment device according to claim 6 is characterized by: The third elastic telescopic rod (53) and the second telescopic rod (55) have the same inner diameter, and the telescopic ends of the two rods move the same distance.

8. The oil drill pipe structure thread surface treatment device according to claim 6 is characterized by: The rotating assembly comprises a fourth elastic telescopic rod (61), the fourth elastic telescopic rod (61) being fixedly connected to a side of the L-shaped frame (52) away from the third elastic telescopic rod (53), a slider of the lifting frame (3) being fixedly connected to the third telescopic rod (62), the third telescopic rod (62) being connected to the second telescopic rod (55), a telescopic end of the third telescopic rod (62) being fixedly connected to a fourth telescopic rod (63), the fourth telescopic rod (63) being connected to the fourth elastic telescopic rod (61), an adjusting frame (64) being fixedly connected to a side of the rotating shaft (4) away from the third telescopic rod (62), the fourth telescopic rod (63) being ball-connected to a slider, and the slider being slidably connected to the adjusting frame (64).

9. The oil drill pipe structure thread surface treatment device according to claim 8, characterized in that: The height of the telescopic end of the fourth elastic telescopic rod (61) after being fully compressed is the same as the height of the sliding plate (54).

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