An automatic piercing device and method for seamless steel pipes

Abstract

The application provides a seamless steel pipe automatic drilling equipment and method, and relates to the technical field of petroleum industry. The equipment comprises a working unit, a first feeding unit and a discharging unit. The working unit comprises a supporting part, a drilling part and a drill rod part in sequence. The supporting part is used for supporting and conveying the oil pipe to be drilled. The drilling part is used for clamping the oil pipe to be drilled. The drill rod part is used for extending the drill rod into the oil pipe on the supporting part. The relative extrusion and rotation between the oil pipe and the drill rod are used to realize the drilling of the oil pipe. The first feeding unit and the discharging unit are respectively arranged on the two sides of the supporting part. The application provides a seamless steel pipe automatic drilling equipment and method. The traditional working mode is upgraded from manual work to full-automatic work. The whole process does not need manual participation, the labor intensity of the operator is reduced, the working efficiency is improved, and the working safety is enhanced.

Description

Technical Field

[0001] This invention relates to the field of petroleum industry technology, specifically to an automatic drilling and drilling device and method for seamless steel pipes. Background Technology

[0002] Seamless steel tubing is used in oil extraction operations, and removing deposits from the inner and outer walls of the tubing is a crucial step in well repair. During oil well operations, wax deposition, sand return, and wear can cause scale buildup on the inner walls of the tubing, necessitating regular tubing cleaning to ensure normal well production.

[0003] Currently, most oilfields subcontract pipeline cleaning to professional cleaning service providers. Equipment cleaning is primarily done manually. Existing pipeline internal wall cleaning equipment includes processes such as feeding, transferring, loading, drilling, and water control. The entire process requires three people to work simultaneously, resulting in low efficiency, high labor intensity, and significant safety hazards. Summary of the Invention

[0004] In response to the problems of low efficiency, high labor intensity and high safety hazards in existing oil pipe cleaning operations, this application provides an automatic drilling equipment and method for seamless steel pipes, which upgrades the traditional operation method from manual operation to fully automatic operation. The entire process does not require human intervention, reduces the labor intensity of operators, improves work efficiency and enhances operation safety.

[0005] The technical solution adopted by this invention to solve its technical problem is: An automatic drilling and passing device for seamless steel pipes includes an operating unit, a first feeding unit, and a discharging unit. The operating unit sequentially includes a support assembly, a drilling assembly, and a drill rod assembly. The supporting part is used to support and transport the oil pipe to be drilled through, the drilling part is used to clamp the oil pipe to be drilled through, and the drill rod part is used to allow the drill rod to extend into the oil pipe on the supporting part, and the oil pipe is drilled through by the relative squeezing and rotation between the oil pipe and the drill rod. The first feeding unit and the discharge unit are located on both sides of the support assembly, respectively. The supporting assembly includes a first working frame and a first conveying component. The first conveying component includes a first swing frame rotatably connected to the first working frame. The upper end of the first swing frame is provided with a conveying wheel and a first motor. The lower end of the first swing frame is hinged to a first tie rod. The first tie rod is hinged to the drive end of a first linear drive member hinged to the first working frame. The drilling assembly includes a second working frame, on which a rotary support cylinder and a second motor for driving the rotary support cylinder to rotate are rotatably mounted. The end of the rotary support cylinder is provided with a chuck for clamping the oil pipe. The drill rod assembly includes a third working frame and a moving component. The drill rod is mounted on the moving component and can move closer to or further away from the drilling assembly under the drive of the moving component.

[0006] Furthermore, the first working frame is provided with at least two supporting components, each including a supporting bracket and two supporting rollers disposed on the upper end of the supporting bracket, and the rotation axis of the supporting rollers is parallel to the oil pipe. When the first conveying component is in a vertical supporting state, the oil pipe is disengaged from the supporting rollers under the support of the conveying wheel.

[0007] Furthermore, the first feeding unit includes a first feeding frame body with an inclined support surface, and the oil pipe located on the first feeding frame body can move towards one end of the support part under its own weight and abut against the first limiting member. The discharge unit includes a discharge frame with an inclined support surface. The oil pipe located on the discharge frame can move away from the supporting part under its own weight and abut against the second limiting member. The supporting component includes at least two transfer members. Each transfer member includes a transfer plate and a second linear drive for driving the transfer plate to move up and down. The upper edge of the transfer plate includes a first inclined portion and a second inclined portion, and a first stop portion is formed between the first inclined portion and the second inclined portion. When the transfer plate moves upward, an oil pipe on the first feed frame is lifted by the transfer plate and moves down along the first inclined portion to the first stop portion under its own weight. At the same time, an oil pipe on the supporting component is also lifted by the transfer plate and moves down along the second inclined portion under its own weight. When the transfer plate moves downward, the oil pipe that has moved down to the first stop portion is transferred to the supporting component.

[0008] Furthermore, a first bracket is provided at the end of the third working frame near the drilling assembly, and a first support wheel for supporting the drill pipe is provided on the first bracket. Several second brackets are rotatably arranged on the side of the third working frame opposite to the drilling assembly, and a second support wheel is provided on the second bracket. A shift fork is provided on the rotation shaft of the second bracket. Limiting posts are respectively provided on both sides of the shift fork on the third working frame. When the shift fork is engaged with the limiting post on the side away from the drilling assembly, the second support wheel can support the drill pipe. When the shift fork is engaged with the limiting post on the side near the drilling assembly, the second support wheel can avoid the moving part. A driving post is provided on the moving part, and the driving post is used to switch the shift fork between two positions.

[0009] Furthermore, a second feeding unit is provided upstream of the first feeding unit, and a loading unit is provided between the first and second feeding units. The second feeding unit includes a second feeding frame with an inclined support surface. The oil pipe located on the second feeding frame can move towards the end of the support under its own weight and abut against the third limiting member. The loading unit includes a loading frame, on which at least two second swing frames are rotatably arranged. The upper edge of the second swing frame is provided with a third inclined part and a second stop part. A positioning groove is formed between the third inclined part and the second stop part. The lower ends of the second swing frames are all hinged to the second pull rod. The second pull rod is hinged to the driving end of the third linear drive member hinged to the loading frame. The end of the first feeding unit is rotatably provided with a third rotating shaft and a power member for driving the third rotating shaft to rotate. The third rotating shaft is provided with at least two transfer hooks, which are used to transfer the oil pipe in the positioning groove to the first feeding unit.

[0010] Furthermore, the working end of the drill pipe is provided with a water outlet, the second working frame has a first water tank, and the supporting part is provided with a second water tank on the side opposite to the drilling part. When the oil pipe is clamped, one end of the oil pipe extends into the first water tank, and the other end of the drilling oil pipe extends into the second water tank. The first water tank is connected to the first sedimentation tank, the second water tank is connected to the second sedimentation tank, the first sedimentation tank is connected to the second sedimentation tank through the first overflow port, and the second sedimentation tank is connected to the purification tank through the second overflow port.

[0011] Furthermore, the working end of the drill rod is provided with a drill bit, which includes a connecting part and a tapered part. Multiple working teeth are provided on the outer side wall of the connecting part along the circumferential direction. The water outlet is provided on the drill rod, and a steel brush is provided on the side of the drill rod opposite to the drill bit and located at the water outlet.

[0012] Furthermore, a water control unit and a transfer unit are provided between the supporting assembly and the discharge unit. The water control unit includes a water control frame with an inclined support surface. The oil pipe located on the water control frame can move away from the supporting assembly under its own weight and abut against the fourth limiting member. A lifting unit is provided on one side of the water control frame. The lifting unit is used to lift one end of the oil pipe, so that the oil pipe is in an inclined state, thereby controlling the water in the oil pipe. The transfer unit includes a transfer frame and a transfer plate. A seventh linear drive member is provided between the transfer frame and the transfer plate for driving the transfer plate to move up and down. The upper edge of the transfer plate includes a fourth inclined part. When the transfer plate moves upward and lifts the oil pipe on the water control frame, the oil pipe can slide down the transfer plate to the feeding frame of the feeding unit.

[0013] Furthermore, the first working frame is equipped with an automatic painting device, which is used to mark oil pipes that have not been drilled through.

[0014] An automatic drilling method for seamless steel pipes includes the following steps: S1, the second swing frame moves to lift the oil pipe at the feeding position of the second feeding unit, and the lifted oil pipe slides along the second swing frame into the positioning groove; S2, the transfer hook moves to transfer the oil pipe to the first feeding unit; S3, the transfer plate of the transfer component moves upward and lifts the oil pipe to be drilled at the feeding position of the first feeding unit and the oil pipe that has been drilled through at the support part. The oil pipe to be drilled at the feeding position of the first feeding unit moves along the first inclined part to the first stop part. At the same time, the oil pipe that has been drilled through at the support part moves along the second inclined part to the water control frame of the water control unit. Then the transfer plate of the transfer component moves downward and places the oil pipe onto the support part. The oil pipe located on the support section is operated as follows: 3.1.1 The first linear drive unit moves to put the first conveying component into a supporting state. Then the first motor starts and drives the oil pipe to move towards the drilling assembly side through the conveying wheel until the oil pipe passes through the rotary support cylinder and chuck. Then the first linear drive unit moves to restore the first conveying component to the tilting avoidance state. 3.1.2 Chuck locks the oil pipe; 3.1.3 The second motor drives the oil pipe to rotate synchronously with the chuck. The moving parts drive the drill rod to extend into the oil pipe and spray water into the oil pipe through the drill rod. The relative squeezing and relative rotation between the oil pipe and the drill rod breaks up the dirt in the oil pipe and cleans the inner wall of the oil pipe, so as to realize the drilling of the oil pipe. When the oil pipe cannot be drilled through, the automatic painting device makes a paint mark on the oil pipe that cannot be drilled through. 3.1.4 The drill pipe stops spraying water, the moving part drives the drill pipe back to the initial position, at the same time, the chuck stops rotating and releases the oil pipe, and then the first conveying part conveys the oil pipe to the support part for installation; The oil pipe located on the water control frame is operated as follows: 3.2.1 The lifting unit lifts one end of the oil pipe, making the oil pipe tilted, and drains the residual water inside the oil pipe; 3.2.2 The seventh linear drive unit drives the transfer plate to move upward, transferring the oil pipe on the water control frame to the discharge frame.

[0015] The beneficial effects of this invention are: 1. The seamless steel pipe automatic drilling equipment provided in this application integrates the entire oil pipe cleaning process into an automated closed loop. From feeding, transfer and conveying, waiting to be drilled, drilling and cleaning, water control and draining to discharge, the whole process is automated without the need for direct human intervention. This fundamentally reduces the labor intensity of operators, reduces the risk of human-machine contact, and significantly improves the safety and standardization of operations.

[0016] 2. The seamless steel pipe automatic drilling equipment provided in this application embodiment achieves rapid and stable transfer of oil pipes through the cooperation of cylinders, flip plates, and transfer hooks; the first feeding unit can buffer multiple oil pipes to be processed, realizing the decoupling of the feeding process and the drilling process, and avoiding interference of feeding with drilling operations; the transfer plate can complete the dual tasks of "feeding + unloading" in a single action, reducing motion redundancy, shortening cycle time, ensuring continuous and stable operation of the production line, and the overall operation efficiency is far higher than that of the traditional manual mode.

[0017] 3. The seamless steel pipe automatic drilling equipment provided in this application embodiment can automatically increase torque and reduce feed speed when encountering severe blockage, so as to ensure drilling and cleaning effect; when encountering severe blockage and exceeding the limit of the equipment, it can be marked with paint to facilitate subsequent sorting and processing, avoid process interruption or equipment overload damage, and improve system reliability and fault tolerance.

[0018] 4. The seamless steel pipe automatic drilling and cleaning equipment provided in this application integrates three functions: cutting of working teeth, grinding of steel brushes and high-pressure water flushing. The three functions work together to powerfully break down and remove stubborn deposits such as wax, sand, and rust on the inner wall of the oil pipe, making the cleaning more thorough. It is suitable for various complex scaling and blockage scenarios in oilfield oil pipes and significantly improves the reuse rate of oil pipes.

[0019] 5. The seamless steel pipe automatic drilling equipment provided in this application provides a closed-loop flushing circulating water device. After the cleaning wastewater is filtered and settled in the sedimentation tank, it can be circulated to the high-pressure water pump for reuse, which greatly reduces water consumption, reduces sewage discharge and treatment costs, and meets the requirements of green production and energy conservation in oil fields. Attached Figure Description

[0020] Figure 1 A three-dimensional structural schematic diagram of an automatic drilling device for seamless steel pipes provided in this application embodiment; Figure 2 A top view of an automatic drilling device for seamless steel pipes provided in an embodiment of this application; Figure 3 A left view of an automatic drilling device for seamless steel pipes provided in an embodiment of this application; Figure 4 This is a schematic diagram showing the positional relationship between the second feeding unit and the loading unit; Figure 5 for Figure 4 A magnified structural diagram of part A in the middle; Figure 6 Left view showing the positional relationship between the second feeding unit and the loading unit; Figure 7 This is a diagram illustrating the flipping action; Figure 8 This is a schematic diagram showing the positional relationship between the feeding unit and the first feeding unit; Figure 9 This is a schematic diagram of the operation of the transfer hook; Figure 10 A three-dimensional structural diagram for receiving the components; Figure 11 for Figure 10 A magnified structural diagram of part B in the middle section; Figure 12 The main view of the receiving component; Figure 13 A schematic diagram showing the positional relationship between the transfer component and the first feeding unit; Figure 14 Schematic diagram of the transfer plate's operation Figure 1 ; Figure 15 Schematic diagram of the transfer plate's operation Figure 2 ; Figure 16 This is a three-dimensional structural diagram of the water control unit; Figure 17 for Figure 16 A magnified structural diagram of section C; Figure 18 A schematic diagram showing the positional relationship between the water control unit, the transfer unit, and the discharge unit; Figure 19 Left view showing the positional relationship between the water control unit, the transfer unit, and the discharge unit; Figure 20 A three-dimensional structural diagram of the drilling assembly and the drill pipe assembly; Figure 21 for Figure 20 A magnified structural diagram of section D; Figure 22 for Figure 20 A magnified structural diagram of section E in the middle; Figure 23 for Figure 20 A magnified structural diagram of section F in the middle; Figure 24 This is a three-dimensional structural diagram of the moving part; Figure 25 A three-dimensional structural diagram of the working end of the drill pipe; Figure 26 This is a diagram illustrating the assembly process between the drive column and the shift fork. Figure 27 A schematic diagram showing the positional relationship between the receiving sub-assembly and the second water tank; Figure 28 for Figure 27 A magnified structural diagram of section G in the middle.

[0021] In the diagram: 1. Work unit; 11. Support assembly; 111. First working frame; 112. First conveying component; 1121. First swing frame; 1122. Conveying wheel; 1123. First motor; 1124. Coupling; 113. First tie rod; 1131. First support rod; 114. First linear drive component; 115. Support component; 1151. Support bracket; 1152. Support roller; 116. First detection switch; 117. Transfer component; 1171. Transfer plate; 11711. First inclined part; 11712. Second inclined part; 11713. First stop part; 1172. Second linear drive component; 1181. Mounting bracket; 1182. Automatic painting device; 12. Drilling assembly; 121. Second working frame; 1211. Support base; 1221. Chuck; 1222. Rotary support cylinder; 1223. Second motor; 1224. First transmission mechanism; 13. Drill pipe assembly; 131. Third working frame; 1311. Side beam; 1312. Limiting post; 132. Moving parts; 1321. Moving frame; 1322. Drive shaft; 1323. Roller; 1324. Second transmission mechanism; 1325. Third transmission mechanism; 1326. Third motor; 1327. Counterweight; 1328. Mounting base; 1329. Drive post; 133. Drill pipe; 133 1. Flange plate; 1332. Water outlet; 1333. Drill bit; 13331. Working tooth; 1334. Steel brush; 134. First bracket; 1341. First support roller; 135. Second bracket; 1351. Second support roller; 1352. Shift fork; 1361. First limit switch; 1362. First contact block; 1371. Second limit switch; 1372. Second contact block; 138. Hard limit switch; 2. First feeding unit; 21. First feeding frame; 211. First limiting component; 212. Sleeve; 22. Second detection switch; 23. Third detection switch; 3. Discharge unit; 31. Discharge frame; 311. Second limit switch; 32. Fourth detection switch; 4. Second feeding unit; 41. Second feeding frame; 411. Third limiting component; 42. Fifth detection switch; 43. Sixth detection switch; 5. Feeding unit; 51. Feeding frame; 52. Second swing frame; 521. Third inclined part; 522. Second stop part; 523. Positioning groove; 53. Second pull rod; 531. Second support rod; 54. Third linear drive component; 55. Seventh detection switch; 56. Third rotating shaft; 561. Transfer hook; 562. Third support rod; 57. Fourth linear drive component; 61. First water tank; 62. Second water tank; 621. Waterproof cover; 6211. Second guide column; 622. Fifth linear drive component; 63. First sedimentation tank; 64. Second sedimentation tank; 65. First pipe; 66. Second pipe; 67. Third pipe; 68. Purification tank; 69. Fourth pipe; 7. Water control unit; 71. Water control frame; 711. Fourth limit component; 72. Lifting assembly; 721. Lifting frame; 722. Lifting plate; 723. Sixth linear drive component; 73. Eighth detection switch; 81. Transfer assembly; 811. Transfer frame; 812. Transfer plate; 813. Seventh linear drive component; 9. Oil pipes. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be described in detail below with reference to the accompanying drawings. The described embodiments are merely a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort should fall within the protection scope of this application.

[0023] To facilitate understanding of the specific embodiments of this application, a coordinate system is now defined as follows: Figure 1 As shown, the left and right directions are horizontal, the front and back directions are vertical, and the up and down directions are vertical.

[0024] like Figure 1 , Figure 2 and Figure 27 As shown, an automatic drilling and penetration device for seamless steel pipes includes a control system (not shown in the figure) and a working unit 1. The working unit 1 is the core unit of the device and is used to drill and penetrate the oil pipe 9.

[0025] The working unit 1 extends along the extension direction of the oil pipe 9 (according to...). Figure 1 The coordinate system shown (from left to right) includes a support assembly 11, a drilling assembly 12, and a drill rod assembly 13. The support assembly 11 supports the tubing 9 to be drilled through. The drilling assembly 12 clamps the tubing 9. The drill rod assembly 13 allows the drill rod 133 to extend into the tubing 9 on the support assembly 11. During drilling, the tubing 9 is drilled through by the relative compression and rotation between the tubing 9 and the drill rod 133.

[0026] The supporting assembly 11 includes a first working frame 111, on which a first conveying component 112 is provided for moving the oil pipe 9 closer to or away from the drilling assembly 12. Figure 1 In the coordinate system shown, the oil pipe 9 can move in the left and right directions under the drive of the first conveying component 112.

[0027] As one specific implementation method, such as Figure 10 , Figure 11 and Figure 12 As shown, in this embodiment, at least two first conveying components 112 are arranged laterally on the first working frame 111. Each first conveying component 112 includes a first swing frame 1121. The middle part of the first swing frame 1121 is rotatably connected to the first working frame 111. The upper end of the first swing frame 1121 is provided with a conveying wheel 1122 and a first motor 1123 for driving the conveying wheel 1122 to rotate. The lower end of the first swing frame 1121 is hinged to a first pull rod 113. A first linear drive member 114 is hinged on the first working frame 111, and the first pull rod 113 is hinged to the drive end of the first linear drive member 114. When the first linear drive member 114 is activated, it can drive several first conveying components 112 to swing up and down synchronously through the first pull rod 113.

[0028] In one specific embodiment, the first working frame 111 described in this embodiment is provided with four first conveying components 112. The first swing frame 1121 includes a base plate, and the base plate is connected and fixed to a first rotating shaft located below the base plate via connecting ears. The first rotating shaft is rotatably connected to a first ear plate fixedly mounted on the first working frame 111 via a bearing assembly (not shown in the figure). A first connecting rod is fixedly mounted on the first rotating shaft. The upper end of the first connecting rod is connected and fixed to the first rotating shaft by welding, and the lower end of the first connecting rod is hinged to the first pull rod 113 via a hinge shaft. Two first support ears are provided on the upper side of the base plate. The conveying wheel 1122 is located between the two first support ears, and both ends of the conveying wheel 1122 are rotatably connected to the first support ears via bearing assemblies (not shown in the figure). The first motor 1123 is detachably fixed to the base plate, and the power output shaft of the first motor 1123 is connected to the end of the conveying wheel 1122 via a coupling 1124. The first pull rod 113 is provided with a first support rod 1131, and the first support rod 1131 is perpendicular to the first pull rod 113. One end of the first support rod 1131 is connected and fixed to the first pull rod 113 by welding, and the other end of the first support rod 1131 is hinged to the driving end of the first linear drive member 114 through a hinge shaft.

[0029] Here, the first linear drive 114 can be a cylinder, hydraulic cylinder, or electric actuator, or other drive component capable of linear drive. In one specific embodiment, the first linear drive 114 in this example is a cylinder. The cylinder body of the first linear drive 114 is hinged to the first working frame 111, and the piston rod end of the first linear drive 114 is hinged to the first support rod 1131.

[0030] The drilling assembly 12 includes a second working frame 121, which is provided with a clamping component for clamping the oil pipe 9. When the oil pipe 9 approaches the drilling assembly 12 under the drive of the first conveying component 112 and extends into the clamping component, the clamping component can clamp the end of the oil pipe 9, thereby fixing the oil pipe 9.

[0031] In one specific implementation, the clamping component described in this embodiment is a chuck 1221.

[0032] like Figure 20 and Figure 22As shown, the drill pipe assembly 13 includes a third working frame 131, on which a moving part 132 is provided. The drill pipe 133 is detachably fixed on the moving part 132 and can move closer to or further away from the drilling assembly 12 under the action of the moving part 132. Figure 1 In the coordinate system shown, the drill rod 133 can move in the left and right directions under the drive of the moving part 132.

[0033] As one specific implementation method, such as Figure 20 and Figure 22 As shown, the movable component 132 in this embodiment includes a movable frame 1321. Two drive shafts 1322 are disposed at the bottom of the movable frame 1321, and both ends of the drive shafts 1322 are rotatably connected to the movable frame 1321 via bearing assemblies. Rollers 1323 are fixedly disposed at both ends of the drive shafts 1322, and the rollers 1323 can rotate synchronously with the drive shafts 1322 under their drive. The third working frame 131 includes two side beams 1311 extending laterally. The two side beams 1311 cooperate with the rollers 1323 to provide guidance for the movement of the movable frame 1321. For example, the inner side of the roller 1323 (with the opposite side of the two rollers 1323 as the inner side) is provided with a limiting flange, and the outer side of the limiting flange (with the opposite side of the two rollers 1323 as the inner side) is in contact with the inner side of the side beam 1311 (with the opposite side of the two rollers 1323 as the inner side), thereby restricting the degree of freedom of the movable frame 1321 to move back and forth relative to the third working frame 131. The two drive shafts 1322 are connected by a second transmission mechanism 1324, and one of the drive shafts 1322 is connected to the power output shaft of the third motor 1326 through a third transmission mechanism 1325. For example, both the second transmission mechanism 1324 and the third transmission mechanism 1325 adopt synchronous belt drive, and the third motor 1326 is detachably fixed on the upper side of the movable frame 1321. The movable frame 1321 is provided with a clearance hole for avoiding the third transmission mechanism 1325. The movable frame 1321 is located on the side of the third motor 1326 near the drilling section 12 (according to...). Figure 1 The coordinate system shown is on the right side. A mounting base 1328 is provided, and the drill rod 133 is fixedly mounted on the mounting base 1328 in a detachable manner.

[0034] In one specific embodiment, a flange plate 1331 is fixedly installed on the drill rod 133 by welding. The mounting base 1328 is provided with a through hole for accommodating the drill rod 133. The end of the drill rod 133 is inserted into the through hole. The flange plate 1331 is fixedly connected to the mounting base 1328 by bolt assembly.

[0035] Furthermore, such as Figure 20 and Figure 21 As shown, the clamping component further includes a rotary support cylinder 1222 and a second motor 1223 for driving the rotary support cylinder 1222 to rotate around its own axis. The chuck 1221 is detachably fixed to the rotary support cylinder 1222. During drilling, the tubing 9 can move axially relative to the drill rod 133 and rotate relative to the drill rod 133, that is, the tubing 9 is drilled through by the relative compression and rotation between the tubing 9 and the drill rod 133.

[0036] In one specific embodiment, two support seats 1211 are fixedly installed on the second working frame 121 in this embodiment. The two ends of the rotary support cylinder 1222 are rotatably connected to the support seats 1211 via bearing assemblies. The chuck 1221 is located at one end of the rotary support cylinder 1222 facing away from the support portion 11, and the end of the rotary support cylinder 1222 facing the support portion 11 is connected to the power output shaft of the second motor 1223 via a first transmission mechanism 1224. The second motor 1223 is detachably fixed to the second working frame 121 and located below the rotary support cylinder 1222. The first transmission mechanism 1224 uses synchronous belt drive. The chuck 1221 is a front-mounted pneumatic chuck 1221, and the rotating end of the chuck 1221 is detachably connected to the end of the rotary support cylinder 1222.

[0037] The aforementioned front-mounted pneumatic chuck 1221 is existing technology and can be directly obtained through external purchase; therefore, its internal structure will not be described in detail here. For example, in this embodiment, the pneumatic chuck 1221 is the K53-320 front-mounted pneumatic chuck 1221 manufactured by Hohhot Zhonghuan (Group) Co., Ltd.

[0038] Furthermore, to prevent sliding friction between the oil pipe 9 and the conveyor wheel 1122 during rotation, which would cause wear to the oil pipe 9, such as... Figure 11 and Figure 12As shown, at least two supporting components 115 are provided on the first working frame 111 along the extension direction of the oil pipe 9. The supporting component 115 includes a supporting bracket 1151, the lower end of which is fixedly connected to the first working frame 111, and the upper end of which is provided with supporting rollers 1152 on both sides of the oil pipe 9 to be drilled, with the rotation axis of the supporting rollers 1152 parallel to the oil pipe 9 to be drilled.

[0039] In one specific implementation, the first working frame 111 described in this embodiment is provided with two supporting components 115, and the two supporting components 115 are located at both ends of the first working frame 111.

[0040] Driven by the first linear drive 114, the first conveying component 112 has two working positions. When the first conveying component 112 is in the first working position, the first conveying component 112 is in a vertical supporting state. Figure 12 As shown), at this time, the conveyor wheel 1122 is at its upper limit position. The oil pipe 9, supported by the conveyor wheel 1122, moves upwards away from the support roller 1152, but remains within the central hole area of ​​the chuck 1221. That is, driven by the first conveying component 112, the oil pipe 9 can still extend into the chuck 1221 without sliding friction with the support roller 1152. When the first conveying component 112 is in the second working position, it is in an inclined avoidance state (…). Figure 10 As shown), at this time, the conveyor wheel 1122 is at the lower limit position, and the oil pipe 9 to be drilled is supported by the supporting component 115 and is coaxial with the chuck 1221.

[0041] Furthermore, a first detection switch 116 is provided on the first working frame 111 at one end near the drilling section 12. The first detection switch 116 is used to detect whether there is an oil pipe 9 on the supporting component 115.

[0042] Furthermore, in order to increase the friction between the roller 1323 and the side beam 1311, thereby enabling the moving part 132 to provide greater thrust to the drill rod 133, such as... Figure 22 As shown, a counterweight 1327 is provided on the mobile frame 1321.

[0043] In one specific embodiment, the counterweight 1327 is located between the mounting base 1328 and the third motor 1326. The counterweight 1327 has a cylindrical structure. Limiting rods with an angle steel cross-section are respectively provided on the four corners of the counterweight 1327 on the mobile frame 1321. The counterweight 1327 is restricted within the square area formed by the four limiting rods.

[0044] Furthermore, to prevent the drill pipe 133 from deforming due to excessive length, such as Figure 23 As shown, a first bracket 134 is fixedly installed on the third working frame 131 at one end near the drilling section 12, and a first supporting wheel 1341 for supporting the drill rod 133 is provided on the first bracket 134.

[0045] Furthermore, such as Figure 20 , Figure 22 and Figure 26 As shown, a plurality of second brackets 135 are rotatably mounted on the third working frame 131 on the side of the first bracket 134 opposite to the drilling section 12. Each second bracket 135 is equipped with a second supporting wheel 1351. A shift fork 1352 is mounted on the rotation axis of the second bracket 135. Limiting posts 1312 are respectively provided on both sides of the shift fork 1352 on the third working frame 131. The two limiting posts 1312 determine the swing range of the second bracket 135. The second bracket 135 has two working positions. When the second bracket 135 is in the first working position, the shift fork 1352 rests on the limiting post 1312 on the side away from the drilling assembly 12, and the second support wheel 1351 is in the upper limit position, providing support for the drill rod 133. When the second bracket 135 is in the second working position, the shift fork 1352 rests on the limiting post 1312 on the side closer to the drilling assembly 12, and the second support wheel 1351 is in the lower limit position, allowing it to avoid the moving frame 1321, enabling the moving frame 1321 to smoothly pass over the second bracket 135 and move towards the side closer to the drilling assembly 12. The moving frame 1321 is provided with a drive post 1329 that cooperates with the shift fork 1352. When the movable frame 1321 moves in the direction close to the drilling assembly 12, the drive column 1329 can switch the second bracket 135 from the first working position to the second working position through the drive fork 1352; when the movable frame 1321 moves in the direction away from the drilling assembly 12, the drive column 1329 can restore the second bracket 135 from the second working position to the first working position through the drive fork 1352.

[0046] In one specific embodiment, the second bracket 135 in this embodiment includes a second rotating shaft as a rotation axis. Both ends of the second rotating shaft are rotatably connected to a second ear plate fixedly mounted on the third working frame 131 via bearing assemblies (not shown in the figure). Two second supporting ears are fixedly mounted on the second rotating shaft by welding, and a second supporting wheel 1351 is disposed between the two second supporting ears. Figure 1 In the coordinate system shown, the shift fork 1352 is fixedly mounted to the rear end of the second rotating shaft by welding, and the open end of the shift fork 1352 is located away from the second rotating shaft. Correspondingly, the drive column 1329 is located on the rear side of the movable frame 1321. For example, two vertical plates extending obliquely to the lower right are provided on the lower side of the main body of the movable frame 1321. The drive column 1329 is located between the two vertical plates, and both ends of the drive column 1329 are fixedly connected to the suspended ends of the vertical plates.

[0047] Furthermore, a first limit switch 1361 is provided at the end of the movable frame 1321 near the drilling assembly 12, and a first contact block 1362 cooperating with the first limit switch 1361 is provided at the end of the third working frame 131 near the drilling assembly 12. The first limit switch 1361 and the first contact block 1362 cooperate to determine the limit position of the movable component 132 moving in the direction near the drilling assembly 12. A second limit switch 1371 is provided at the end of the movable frame 1321 away from the drilling assembly 12, and a second contact block 1372 cooperating with the second limit switch 1371 is provided at the end of the third working frame 131 away from the drilling assembly 12. The second limit switch 1371 and the second contact block 1372 cooperate to determine the limit position of the movable component 132 moving in the direction away from the drilling assembly 12. For example, the first limit switch 1361 is disposed at the right front end of the mobile frame 1321, and the second limit switch 1371 is disposed at the left rear end of the mobile frame 1321.

[0048] Furthermore, the third working frame 131 is located at the end furthest from the drilling assembly 12 (according to...). Figure 1 The coordinate system shown is on the left end, and a hard limit of 138 is set.

[0049] like Figure 1 , Figure 2 and Figure 3 As shown, along the direction perpendicular to the extension of the oil pipe 9, a first feeding unit 2 is provided on one side of the support assembly 11, and a discharge unit 3 is provided on the other side of the support assembly 11. Figure 1In the coordinate system shown, the first feeding unit 2 is located on the rear side of the support assembly 11, and the discharging unit 3 is located on the front side of the support assembly 11.

[0050] The first feeding unit 2 includes a first feeding frame 21. The support surface of the first feeding frame 21 for supporting the oil pipe 9 is arranged obliquely downward along the direction close to the support part 11. A first limiting member 211 is provided at one end of the first feeding frame 21 near the support part 11. The oil pipe 9 located on the first feeding frame 21 can move downward under its own weight to the end of the first feeding frame 21 near the support part 11 and abut against the first limiting member 211. A second detection switch 22 is provided at one end of the first feeding frame 21 near the support part 11. When the oil pipe 9 abuts against the first limiting member 211, the second detection switch 22 can detect the oil pipe 9, thereby feeding back a material signal to provide a trigger signal for the operation of the drilling unit.

[0051] As one specific implementation method, such as Figure 3 and Figure 8 As shown, the first feeding frame 21 in this embodiment includes several first feeding brackets arranged side by side in the left-right direction. Each first feeding bracket includes an inclined first support beam and a first column for supporting the first support beam. For example, the first feeding frame 21 includes three first feeding brackets, and the second detection switch 22 is located at the front end of the left first feeding bracket.

[0052] Furthermore, a third detection switch 23 is provided at the end of the first feeding frame 21 away from the support part 11. The third detection switch 23 is used to detect whether the first feeding frame 21 is full of material.

[0053] Furthermore, a third detection switch 23 is respectively provided at both ends of the first feed frame 21 along the extension direction of the oil pipe 9, according to... Figure 1 The coordinate system shown indicates that a third detection switch 23 is provided at both the left and right ends of the first feeding frame 21. For example, a third detection switch 23 is provided at the rear end of both the left and right ends of the first feeding bracket. Since the end of the oil pipe 9 has a connector, and the outer diameter of the connector is larger than the outer diameter of the oil pipe 9, by providing two third detection switches 23, the influence of the tilt of the oil pipe 9 on the full-load detection can be resolved. That is, regardless of whether the connector of the oil pipe 9 is on the left or right side, a full-load detection error will not occur.

[0054] The discharge unit 3 includes a discharge frame 31, the support surface of which for supporting the oil pipe 9 is arranged obliquely downward along the direction away from the support assembly 11. A second limiting member 311 is provided at one end of the discharge frame 31 away from the support assembly 11, and the oil pipe 9 located on the discharge frame 31 can move downward under its own weight to the end of the discharge frame 31 away from the support assembly 11 and abut against the second limiting member 311.

[0055] As one specific implementation method, such as Figure 18 As shown, the discharge rack 31 in this embodiment includes several discharge supports arranged side by side in the left-right direction, and a first connecting beam is provided between two adjacent discharge supports. Each discharge support includes an inclined second support beam and a second column for supporting the second support beam. The two ends of the first connecting beam are respectively connected and fixed to the second support beam by welding. For example, the discharge rack 31 includes three discharge supports.

[0056] Furthermore, a fourth detection switch 32 is provided at one end of the discharge rack 31 near the support portion 11. This fourth detection switch 32 is used to detect whether the discharge rack 31 is full. Similarly, according to... Figure 1 The coordinate system shown indicates that a fourth detection switch 32 is provided at both the left and right ends of the discharge frame 31.

[0057] like Figure 11 and Figure 13 As shown, the first working frame 111 is provided with at least two transfer components 117. Each transfer component 117 includes a transfer plate 1171, which is slidably connected to the first working frame 111. A second linear drive member 1172 for driving the transfer plate 1171 to move up and down is provided between the transfer plate 1171 and the first working frame 111. The upper edge of the transfer plate 1171 includes a first inclined portion 11711 and a second inclined portion 11712. Both the first inclined portion 11711 and the second inclined portion 11712 are inclined downwards in a direction away from the first feeding unit 2, and a first stop portion 11713 is formed between the first inclined portion 11711 and the second inclined portion 11712. Preferably, the first stop portion 11713 is in a vertical state.

[0058] like Figure 13 As shown, the end of the transfer plate 1171 near the first feeding unit 2 overlaps with the first feeding unit 2, and the distance M2 between the end face of the transfer plate 1171 near the first feeding unit 2 and the first limiting member 211 is greater than the radius R of the oil pipe 9, but less than three times the radius R of the oil pipe 9, i.e., R <M2<3R。

[0059] like Figure 14 As shown, when the oil pipe 9 to be drilled is supported by the support component 115, the first stop portion 11713 of the transfer plate 1171 is located on the side of the axis of the oil pipe 9 to be drilled that is close to the first feed unit 2, and the distance between the two is M4.

[0060] like Figure 15 As shown, when the oil pipe 9 to be drilled is supported by the transfer plate 1171 and abuts against the first stop 11713, the axis of the oil pipe 9 to be drilled is located between the axes of the two support rollers 1152, that is, the triangle formed by the cross-sectional centers of the oil pipe 9 to be drilled and the two support rollers 1152 connected in sequence is an acute triangle.

[0061] Thus, when the transfer plate 1171 moves upward under the drive of the second linear drive member 1172, the oil pipe 9 closest to the support part 11 on the first feeding frame 21 will be lifted by the transfer plate 1171 and move downward along the first inclined part 11711 to the first stop part 11713 under its own weight; at the same time, the oil pipe 9 that has been drilled and was originally supported by the support member 115 will also be lifted by the transfer plate 1171 and move downward along the second inclined part 11712 to the discharge unit 3 under its own weight. When the transfer plate 1171 moves downward under the drive of the second linear drive member 1172, since the axis of the oil pipe 9 stuck on the first stop part 11713 of the transfer plate 1171 is located between the axes of the two support rollers 1152, the oil pipe 9 can fall smoothly between the two support rollers 1152 to wait for the next drilling operation.

[0062] The transfer component 117 provided in this application can simultaneously complete the material transfer between the first feeding unit 2 and the supporting unit 11, and between the supporting unit 11 and the discharging unit 3 in one lifting action. This not only effectively reduces equipment complexity and costs, but also improves work efficiency.

[0063] Here, the second linear drive 1172 can be a cylinder, hydraulic cylinder, or electric actuator capable of linear drive. In one specific embodiment, the second linear drive 1172 is a cylinder. A first mounting plate is provided on the first working frame 111. The cylinder body of the second linear drive 1172 is detachably fixed to the first mounting plate. The piston rod end of the second linear drive 1172 is connected to the transfer plate 1171 via a hinge shaft. The transfer plate 1171 has downwardly extending first guide posts at both ends. First guide slides that cooperate with the first guide posts are respectively provided on both sides of the first linear drive 114 on the first mounting plate. For example, the first guide slides are linear bearings.

[0064] Furthermore, a second feeding unit 4 is provided on the upstream side of the first feeding unit 2 (i.e. the side away from the support part 11), and a feeding unit 5 is provided between the first feeding unit 2 and the second feeding unit 4. The feeding unit 5 is used to transfer the oil pipes 9 on the second feeding unit 4 to the first feeding unit 2 one by one.

[0065] like Figure 3 and Figure 4 As shown, the second feeding unit 4 includes a second feeding frame 41. The support surface of the second feeding frame 41 for supporting the oil pipe 9 is arranged obliquely downward along the direction close to the support part 11. A third limiting member 411 is provided at one end of the second feeding frame 41 near the support part 11. The oil pipe 9 located on the second feeding frame 41 can move downward under its own weight to one end of the second feeding frame 41 near the support part 11 and abut against the third limiting member 411. A fifth detection switch 42 is provided at one end of the second feeding frame 41 near the support part 11. When the oil pipe 9 abuts against the third limiting member 411, the fifth detection switch 42 can detect the oil pipe 9, thereby feeding back a material presence signal to provide a trigger signal for the operation of the feeding unit 5.

[0066] In one specific embodiment, the second feeding frame 41 in this example includes several second feeding brackets arranged side by side in a left-right direction, with a second connecting beam between adjacent second feeding brackets. Each second feeding bracket includes an inclined third support beam and a third column for supporting the third support beam. The two ends of the second connecting beam are fixedly connected to the third support beam by welding. For example, the second feeding frame 41 includes four second feeding brackets, and the fifth detection switch 42 is located at the front end of the left second feeding bracket.

[0067] Furthermore, a sixth detection switch 43 is provided at the end of the second feeding frame 41 away from the support part 11. The sixth detection switch 43 is used to detect whether the second feeding frame 41 is full. Similarly, according to... Figure 1 The coordinate system shown indicates that a sixth detection switch 43 is provided at both the left and right ends of the second feeding frame 41.

[0068] like Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the feeding unit 5 includes a feeding frame 51. At least two second swing frames 52 are provided on the feeding frame 51 along the extension direction of the oil pipe 9, and the middle part of the second swing frames 52 is rotatably connected to the feeding frame 51. The upper edge of the second swing frame 52 sequentially includes a third inclined portion 521 and a second stop portion 522 in a direction away from the second feeding unit 4. The third inclined portion 521 is inclined downwards in a direction away from the second feeding unit 4, and the second stop portion 522 is vertical. The joint between the third inclined portion 521 and the second stop portion 522 forms a positioning groove 523 for accommodating the oil pipe 9. The lower ends of the second swing frames 52 are all hinged to the second pull rod 53. A third linear drive member 54 is hinged on the feeding frame 51, and the second pull rod 53 is hinged to the drive end of the third linear drive member 54. When the third linear drive 54 is activated, it can drive several second swing frames 52 to swing up and down synchronously via the second pull rod 53.

[0069] In one specific embodiment, the feeding frame 51 described in this embodiment is provided with two second swing frames 52, and the two second swing frames 52 are respectively located at both ends of the feeding frame 51. Each second swing frame 52 includes a flap, and the upper edge of the flap includes a third inclined portion 521 and a second stop portion 522 sequentially along the direction away from the second feeding unit 4. A second rotating shaft is fixedly provided at the lower end of the flap by welding. The two ends of the second rotating shaft are rotatably connected to a third ear plate fixedly provided on the feeding frame 51 via bearing assemblies (not shown in the figure). A second connecting rod is provided on the second rotating shaft. The upper end of the second connecting rod is fixedly connected to the second rotating shaft by welding, and the lower end of the second connecting rod is hinged to the second pull rod 53 via a hinge shaft. The second pull rod 53 is provided with a second support rod 531, and the second support rod 531 is perpendicular to the second pull rod 53. One end of the second support rod 531 is connected and fixed to the second pull rod 53 by welding, and the other end of the second support rod 531 is hinged to the driving end of the third linear drive member 54 through a hinge shaft.

[0070] Here, the third linear drive 54 can be a cylinder, hydraulic cylinder, or electric actuator, or other drive component capable of linear drive. In one specific embodiment, the third linear drive 54 in this example is a cylinder. The cylinder body of the third linear drive 54 is hinged to the loading frame 51, and the piston rod end of the third linear drive 54 is hinged to the second support rod 531.

[0071] like Figure 6As shown, one end of the flap near the second feeding unit 4 overlaps with the second feeding unit 4, and the distance M1 between the end face of the end of the flap near the second feeding unit 4 and the third limiting member 411 is greater than the radius R of the oil pipe 9 and less than 3 times the radius R of the oil pipe 9, that is, R < M1 < 3R. During the process that the flap is turned upward from the right-leaning state to the vertical state under the drive of the third linear driving member 54, one oil pipe 9 on the second feeding frame 41 closest to the first feeding unit 2 is lifted by the flap and moves downward along the third inclined portion 521 of the flap into the positioning groove 523.

[0072] Further, a seventh detection switch 55 for detecting whether there is an oil pipe 9 in the positioning groove 523 is provided on the feeding frame 51.

[0073] Further, an arc surface is provided between the third inclined portion 521 and the second stopping portion 522, and the radius of the arc surface is equal to the radius of the oil pipe 9.

[0074] As Figure 8 and Figure 9 shown, the feeding unit 5 further includes a third rotating shaft 56 and a power member for driving the third rotating shaft 56 to rotate around its own axis. At least two transfer hooks 561 are fixedly provided on the third rotating shaft 56 by welding. The transfer hook 561 has two working positions under the drive of the power member. When the transfer hook 561 is in the first working position, the hook groove of the transfer hook 561 is aligned with the positioning groove 523 of the second swing frame 52 in the vertical state. Preferably, the hook groove of the transfer hook 561 is of an arc structure and is coaxial with the positioning groove 523 of the second swing frame 52. When the transfer hook 561 is in the second working position, the hook groove is located obliquely above the third rotating shaft 56, and the oil pipe 9 in the groove can slide down along the transfer hook 561 onto the first feeding frame 21 of the first feeding unit 2.

[0075] As a specific implementation manner, in this embodiment, one end of the first feeding frame 21 near the second feeding unit 4 is fixedly provided with a sleeve 212 by welding. The third rotating shaft 56 is located in the sleeve 212 and is rotatably connected to the sleeve 212. Exemplarily, a sleeve 212 is fixedly provided on each first feeding bracket, and the sleeve 212 is fixedly connected to the end of the first supporting beam by welding. Three transfer hooks 561 are fixedly provided on the third rotating shaft 56 by welding. The power member includes a fourth linear driving member 57. A third support rod 562 is fixedly provided on the third rotating shaft 56 by welding. The end of the third support rod 562 far from the third rotating shaft 56 is hinged to the driving end of the fourth linear driving member 57 through a hinge shaft.

[0076] Here, the fourth linear drive component 57 can be a cylinder, hydraulic cylinder, or electric actuator capable of linear drive. As a specific embodiment, the fourth linear drive component 57 in this embodiment is a cylinder. The cylinder body of the fourth linear drive component 57 is hinged to the ground or the first feed frame 21 via a hinged seat, and the piston rod end of the fourth linear drive component 57 is hinged to the third support rod 562. For example, the hinged seat is fixedly installed on the ground, and the cylinder body of the fourth linear drive component 57 is hinged to the hinged seat.

[0077] By setting up a second feeding unit 4 and a feeding unit 5, on the one hand, the material buffer can be increased to avoid material accumulation, and on the other hand, the oil pipes 9 on the first feeding unit 2 can be arranged in a single layer one by one.

[0078] Furthermore, in order to improve the drilling effect, the automatic drilling equipment for seamless steel pipes provided in this application also includes a water flushing unit.

[0079] like Figure 1 and Figure 27 As shown, the drill rod 133 has a hollow tubular structure. One end of the drill rod 133 facing away from the drilling section 12 is connected to a water supply source through a pipeline. The end of the drill rod 133 facing the drilling unit is a closed working end, and several water outlet holes 1332 are evenly distributed along the circumference on the side wall of the working end. During drilling, while the oil pipe 9 and the drill rod 133 are squeezed and rotated relative to each other, water is injected into the oil pipe 9 through the drill rod 133, which can effectively improve the drilling effect. The flushing unit includes a first water tank 61 set on the second working frame 121, and a second water tank 62 is set on one side of the support section 11 facing away from the drilling section 12. When the oil pipe 9 to be drilled is clamped by the clamping component, one end of the oil pipe 9 to be drilled extends into the first water tank 61, and the other end of the oil pipe 9 to be drilled extends into the second water tank 62. The first water tank 61 and the second water tank 62 are used to collect the wastewater flowing out of the oil pipe 9 to be drilled.

[0080] In one specific embodiment, the end of the rotary support cylinder 1222 facing the drill rod assembly 13 extends into the first water tank 61, and the chuck 1221 is located in the first water tank 61.

[0081] Furthermore, in order to further improve the drilling effect, such as Figure 25As shown, the working end of the drill rod 133 (i.e., the end facing the drilling head 12) is provided with a drill bit 1333. The drill bit 1333 includes a cylindrical connecting part and a conical part along the direction near the drilling head 12. The connecting part is coaxially sleeved on the outside of the drill rod 133 and fixedly connected to the drill rod 133 body by welding. Multiple working teeth 13331 are evenly distributed along the circumferential direction on the outer wall of the connecting part. The water outlet 1332 is provided on the drill rod 133 and located at the end near the drill bit 1333. A steel brush 1334 is fixedly provided on the side of the drill rod 133 opposite to the drill bit 1333 of the water outlet 1332.

[0082] During drilling, the conical section utilizes its conical structure to squeeze and penetrate into the interior of the clump of oil, allowing the working teeth 13331 to contact the edge of the clump. Then, the relative rotation between the tubing 9 and the drill rod 133 breaks up the clump of oil through the working teeth 13331. As the drill rod 133 advances, cleaning water flows out from the outlet 1332, and the brush uses the cleaning water to thoroughly wash the broken and softened oil. This not only ensures drilling through but also thoroughly cleans the inner wall of the tubing 9.

[0083] Furthermore, in order to recycle and reuse the water after cleaning, thereby reducing pollution and lowering energy consumption, such as... Figure 27 As shown, the rinsing unit also includes a sedimentation tank and a purification tank. The first water tank 61 and the second water tank 62 are respectively connected to the sedimentation tank through pipes. After the sewage in the first water tank 61 and the second water tank 62 flows into the sedimentation tank, it undergoes sedimentation and purification. An overflow port is provided at the upper end of the sedimentation tank, and the purified water overflowing from the sedimentation tank enters the purification tank 68 for recycling.

[0084] In one specific embodiment, the sedimentation tank in this example includes a first sedimentation tank 63 and a second sedimentation tank 64. The first water tank 61 is connected to the first sedimentation tank 63 via a first pipe 65, and the second water tank 62 is connected to the second sedimentation tank 64 via a fourth pipe 69. The upper end of the first sedimentation tank 63 is provided with a first overflow port, which is connected to the second sedimentation tank 64 via a second pipe 66. The upper end of the second sedimentation tank 64 is provided with a second overflow port, which is connected to the purification tank 68 via a third pipe 67. The purification tank 68 is connected to the water inlet of the drill rod 133 via a pipeline (not shown in the figure) and a high-pressure water pump (not shown in the figure). Exemplarily, the first sedimentation tank 63 is generally located below the first water tank 61, the second sedimentation tank 64 is generally located below the second water tank 62, and the purification tank 68 is close to the second sedimentation tank 64 and located on one side of the second sedimentation tank 64.

[0085] By setting up a first sedimentation tank 63 and a second sedimentation tank 64, and performing two-stage sedimentation and purification, the purification effect can be improved. Furthermore, the wastewater received by the first tank 61 is more turbid and contains more impurities than that of the second tank 62. By setting up the first sedimentation tank 63 and the second sedimentation tank 64, the wastewater from the first tank 61 and the second tank 62 can be purified separately through sedimentation, preventing the wastewater from the first tank 61 from contaminating the second tank 62, thus improving the effect and efficiency of sedimentation and purification.

[0086] Furthermore, to avoid water splashing, such as Figure 27 and Figure 28 As shown, the second water tank 62 is a C-shaped structure with its opening facing the support component 11. The lower half of the second water tank 62 is used to collect sewage flowing from the oil pipe 9. A waterproof cover 621 is provided at the opening of the second water tank 62. Second guide posts 6211 extending upwards perpendicularly to the waterproof cover 621 are respectively provided at both ends of the waterproof cover 621. A second guide slide seat that cooperates with the second guide posts 6211 is provided at the top of the second water tank 62. For example, the second guide slide seat is a linear bearing. A fifth linear drive member 622 is provided at the top of the second water tank 62, located between the two second guide posts 6211. The drive end of the fifth linear drive member 622 passes through the upper side wall of the second water tank 62 and connects to the waterproof cover 621. The lower edge of the opening end of the second water tank 62 is provided with an arc-shaped groove for accommodating the oil pipe 9. The lower edge of the waterproof cover 621 is provided with an arc-shaped groove for accommodating the oil pipe 9. When the waterproof cover 621 moves downward to the lower limit position under the drive of the fifth linear drive member 622, the end of the oil pipe 9 is sealed inside the second water tank 62 of the waterproof cover 621, thereby preventing the cleaning water from splashing.

[0087] Here, the fifth linear drive 622 can be a drive component capable of linear drive, such as a cylinder, hydraulic cylinder, or electric actuator. As a specific embodiment, the fifth linear drive 622 in this embodiment is a cylinder.

[0088] Furthermore, the first water tank 61 is provided with an openable cover (not shown in the figure). The cover and the end of the first water tank 61 facing the drill rod assembly 13 are provided with an arc-shaped groove for accommodating the drill rod 133, and the end of the cover and the first water tank 61 facing away from the drill rod assembly 13 are provided with an arc-shaped groove for accommodating the rotary support cylinder 1222. For example, the cover is rotatably connected to the first water tank 61 via a hinge.

[0089] Furthermore, such as Figure 1 , Figure 2 and Figure 3 As shown, a water control unit 7 and a transfer unit are sequentially arranged between the support unit 11 and the discharge unit 3 along the transfer direction of the oil pipe 9.

[0090] like Figure 16 and Figure 17 As shown, the water control unit 7 includes a water control frame 71. The support surface of the water control frame 71 for supporting the oil pipe 9 is arranged obliquely downward in the direction away from the support assembly 11, and the end of the water control frame 71 near the support assembly 11 overlaps with the transfer plate 1171, that is, the oil pipe 9 moving downward along the second inclined portion 11712 of the transfer plate 1171 can enter the support surface of the water control frame 71. A fourth limiting member 711 is provided at the end of the water control frame 71 away from the support assembly 11, and the oil pipe 9 located on the water control frame 71 can move downward under its own weight to the end of the water control frame 71 away from the support assembly 11 and abut against the fourth limiting member 711. A lifting assembly 72 is provided on one side of the water control frame 71, and the lifting assembly 72 is used to lift one end of the oil pipe 9, so that the oil pipe 9 is in an inclined state, thereby controlling the water in the oil pipe 9 out. An eighth detection switch 73 is provided at the end of the water control frame 71 away from the support unit 11. When the oil pipe 9 abuts against the fourth limit member 711, the eighth detection switch 73 can detect the oil pipe 9 and thus feed back a material signal to provide a trigger signal for the action of the lifting unit 72.

[0091] As one specific implementation method, according to Figure 1 In the coordinate system shown, the lifting unit 72 described in this embodiment is located to the left of the water control frame 71, and the right end of the oil pipe 9 is located above the water purification tank. When the oil pipe 9 is tilted, the water controlled from the oil pipe 9 flows directly into the water purification tank.

[0092] As one specific implementation method, such as Figure 3 and Figure 8 As shown, the water control frame 71 in this embodiment includes several water control brackets arranged side by side in the left-right direction. Each water control bracket includes a fourth support beam arranged at an angle and a fourth column for supporting the fourth support beam. For example, the water control frame 71 includes three water control brackets, and the eighth detection switch 73 is located at the front end of the left water control bracket. The fourth column near the support unit 11 is fixedly connected to the first working frame 111.

[0093] The lifting assembly 72 includes a lifting frame 721 and a lifting plate 722 slidably disposed on the lifting frame 721. A sixth linear drive member 723 for driving the lifting plate 722 to move up and down is provided between the lifting frame 721 and the lifting plate 722.

[0094] In one specific embodiment, the upper end of the lifting plate 722 is provided with a V-shaped groove for accommodating the oil pipe 9, and third guide posts are respectively provided at both ends of the lifting plate 722. The lifting frame 721 is provided with a third guide slide that cooperates with the third guide posts. For example, the third guide slide is a linear bearing.

[0095] Here, the sixth linear drive 723 can be a drive component capable of linear drive, such as a cylinder, hydraulic cylinder, or electric actuator. In one specific embodiment, the sixth linear drive 723 in this example is a cylinder. The cylinder body of the sixth linear drive 723 is fixedly connected to the lifting frame 721, and the piston rod end of the sixth linear drive 723 is connected to the lifting plate 722.

[0096] like Figure 18 and Figure 19 As shown, the transfer unit includes at least two transfer components 81. Each transfer component 81 includes a transfer frame 811 and a transfer plate 812 slidably disposed on the transfer frame 811. A seventh linear drive member 813 for driving the transfer plate 812 to move up and down is disposed between the transfer frame 811 and the transfer plate 812. The upper edge of the transfer plate 812 includes a fourth inclined portion, which is inclined downwards in a direction away from the water control unit 7. The end of the transfer plate 812 near the water control unit 7 overlaps with the water control unit 7, and the end of the transfer plate 812 near the discharge unit 3 overlaps with the discharge unit 3. When the transfer plate 812 moves upwards under the drive of the seventh linear drive member 813, the oil pipe 9 on the water control frame 71 is lifted and slides down along the fourth inclined portion of the transfer plate 812 onto the discharge frame 31 of the discharge unit 3.

[0097] In one specific implementation, the transfer plate 812 in this embodiment is provided with fourth guide posts at both ends, and the transfer frame 811 is provided with a fourth guide slide that cooperates with the fourth guide posts. For example, the fourth guide slide is a linear bearing.

[0098] Here, the seventh linear drive component 813 can be a drive component capable of linear drive, such as a cylinder, hydraulic cylinder, or electric actuator. As a specific embodiment, the seventh linear drive component 813 in this embodiment is a cylinder.

[0099] Furthermore, such as Figure 11 As shown, the first work frame 111 is equipped with a mounting bracket 1181, and an automatic painting device 1182 is mounted on the mounting bracket 1181. The automatic painting device 1182 is existing technology and can be directly obtained through external purchase; its internal structure will not be described in detail here. As a specific embodiment, the automatic painting device 1182 in this embodiment is a W-200LVMP type automatic painting device manufactured by Zhejiang Aolida Pneumatic Tools Co., Ltd.

[0100] Example 2 Based on the automatic drilling equipment for seamless steel pipes provided in this application, this application also provides an automatic drilling method for seamless steel pipes.

[0101] If the number of oil pipes 9 on the discharge unit 3 does not reach the warning position, and there is a certain number of oil pipes 9 on the second feeding unit 4, then the automatic oil pipe 9 drilling equipment is ready to start. The specific operating steps after the equipment is started are as follows: S1, the control system determines whether there is an oil pipe 9 at the feeding position of the second feeding unit 4 based on the signal fed back by the fifth detection switch 42. If there is an oil pipe 9 at this position, the control system flips the flap to lift the oil pipe 9. The lifted oil pipe 9 slides along the third inclined part 521 of the flap to the positioning groove 523 of the flap.

[0102] S2, the control system determines whether there is an oil pipe 9 in the positioning groove 523 based on the signal fed back by the seventh detection switch 55. If there is an oil pipe 9 in the positioning groove 523, it indicates that the oil pipe 9 has been positioned. Then, the fourth linear drive 57 drives the transfer hook 561 to move, transferring the oil pipe 9 to the first feeding frame 21 of the first feeding unit 2. Then, the fourth linear drive 57 drives the transfer hook 561 to reset, and the flip plate can carry out the transfer of the next oil pipe 9.

[0103] S3, if the oil pipe 9 on the support unit 11 has completed drilling, and the control system determines from the signal feedback from the second detection switch 22 that there is an oil pipe 9 at the feeding position of the first feeding unit 2, then the transfer plate 1171 of the transfer component 117 moves upward, simultaneously lifting the oil pipe 9 to be drilled at the feeding position of the first feeding unit 2 and the oil pipe 9 on the support unit 11 that has completed drilling. The oil pipe 9 to be drilled at the feeding position of the first feeding unit 2 moves along the first inclined part 11711 to the first stop part 11713. At the same time, the oil pipe 9 on the support unit 11 that has completed drilling moves along the second inclined part 11712 to the water control frame 71 of the water control unit 7. After the control system determines from the signal feedback from the first detection switch 116 that the oil pipe 9 to be drilled has moved to the first stop part 11713, the transfer plate 1171 of the transfer component 117 moves downward, and smoothly places the oil pipe 9 to be drilled between the two support rollers 1152 of the support component 115.

[0104] Perform steps 3.1.1-3.1.4 on the drilling tubing 9 on the supporting component 115: 3.1.1 The control system controls the first linear drive 114 to move, so that the first conveying component 112 is in a supporting state. Then the first motor 1123 starts and drives the oil pipe 9 to move towards the drilling unit 12 side through the conveying wheel 1122 until the oil pipe 9 passes through the rotary support cylinder 1222 and the chuck 1221. Then the first linear drive 114 moves to restore the first conveying component 112 to the tilting and avoidance state, and the oil pipe 9 returns to the state supported by the supporting component 115.

[0105] 3.1.2 Control system controls chuck 1221 and locks oil pipe 9.

[0106] 3.1.3 The control system starts the second motor 1223 and the third motor 1326. The second motor 1223 drives the oil pipe 9 to rotate synchronously with the chuck 1221. The moving part 132 drives the drill rod 133 to extend into the oil pipe 9 at a set speed. At the same time, the high-pressure water pump starts and supplies water into the oil pipe 9. The relative compression and relative rotation between the oil pipe 9 and the drill rod 133 break up the dirt in the oil pipe 9 and clean the inner wall of the oil pipe 9, thereby achieving drilling through the oil pipe 9.

[0107] The control system includes a deflector and has an anomaly handling function during drilling. When there is a lot of dirt inside the tubing 9, the control system can detect the current changes of the third motor 1326 and the second motor 1223 through the frequency converter, and improve the drilling effect by increasing the torque and slowing down the feed speed of the drill pipe 133.

[0108] When the oil pipe 9 is severely blocked, exceeding the maximum driving capacity of the equipment and unable to be drilled through, the control system controls the automatic painting device to paint a mark on the oil pipe 9 that cannot be drilled through.

[0109] 3.1.4 The drill pipe 133 stops spraying water, and the moving part 132 drives the drill pipe 133 back to the initial position. At the same time, the chuck 1221 stops rotating and releases the oil pipe 9. Then, the first conveying part 112 is controlled to flip upward to the supporting state and drive the oil pipe 9 back to the supporting part 11. After the oil pipe 9 is back to the supporting part 11, the first conveying part 112 is controlled to flip downward to the tilting avoidance state and the oil pipe 9 is placed back smoothly on the supporting part 115.

[0110] For the oil pipe 9 on the water control frame 71, which has already been drilled, proceed with steps 4.2.1-4.2.2: 3.2.1 The control system determines whether there is an oil pipe 9 on the water control frame 71 based on the signal fed back by the eighth detection switch 73. If there is an oil pipe 9 at this location, the control system activates the sixth linear drive 723, causing the lifting plate 722 to rise, thereby lifting one end of the oil pipe 9 and tilting it to drain any residual water from the oil pipe 9. After the lifting plate 722 has been raised for a period of time, it resets under the action of the sixth linear drive 723.

[0111] Preferably, the water control time is related to the drilling time of the oil pipe 9. When the drilling of the next oil pipe 9 is completed, the sixth linear drive 723 drives the lifting plate 722 to descend, thereby moving the oil pipe 9 onto the water control frame 71.

[0112] 3.2.2 The control system controls the seventh linear drive 813 to move, the transfer plate 812 moves upward, thereby lifting the oil pipe 9 on the water control frame 71, and the oil pipe 9 moves downward along the fourth inclined part of the transfer plate 812 to the discharge frame 31 of the discharge unit 3.

[0113] Other embodiments obtained by those skilled in the art based on the embodiments provided in this application by combining, splitting, or reorganizing the embodiments of this application do not exceed the protection scope of this application.

[0114] The above detailed embodiments have provided a detailed explanation of the purpose, technical solutions, and beneficial effects of the embodiments of this application. The above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. That is, any modifications, equivalent substitutions, improvements, etc., made on the basis of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. An automatic drilling and unloading device for seamless steel pipes, comprising an operating unit (1), a first feeding unit (2), and a discharging unit (3), characterized in that: The work unit (1) includes, in sequence, a support assembly (11), a drilling assembly (12), and a drill rod assembly (13). The supporting assembly (11) is used to support and transport the oil pipe (9) to be drilled through, the drilling assembly (12) is used to clamp the oil pipe (9) to be drilled through, and the drill rod assembly (13) is used to allow the drill rod (133) to extend into the oil pipe (9) on the supporting assembly (11). The oil pipe (9) is drilled through by the relative squeezing and rotation between the oil pipe (9) and the drill rod (133). The first feeding unit (2) and the discharge unit (3) are located on both sides of the support assembly (11).

2. The automatic drilling equipment for seamless steel pipes according to claim 1, characterized in that: The supporting assembly (11) includes a first working frame (111) and a first conveying component (112). The first conveying component (112) includes a first swing frame (1121) rotatably connected to the first working frame (111). The upper end of the first swing frame (1121) is provided with a conveying wheel (1122) and a first motor (1123). The lower end of the first swing frame (1121) is hinged to a first pull rod (113). The first pull rod (113) is hinged to the drive end of a first linear drive component (114) hinged to the first working frame (111). The drilling assembly (12) includes a second working frame (121), on which a rotary support cylinder (1222) and a second motor (1223) for driving the rotary support cylinder (1222) to rotate are provided. The end of the rotary support cylinder (1222) is provided with a chuck (1221) for clamping the oil pipe (9). The drill rod assembly (13) includes a third working frame (131) and a moving part (132). The drill rod (133) is mounted on the moving part (132) and can move closer to or further away from the drilling assembly (12) under the drive of the moving part (132).

3. The automatic drilling equipment for seamless steel pipes according to claim 2, characterized in that: The first working frame (111) is provided with at least two supporting components (115). The supporting component (115) includes a supporting bracket (1151) and two supporting rollers (1152) disposed on the upper end of the supporting bracket (1151). The rotation axis of the supporting rollers (1152) is parallel to the oil pipe (9). When the first conveying component (112) is in a vertical supporting state, the oil pipe (9) is disengaged from the supporting rollers (1152) under the support of the conveying wheel (1122).

4. The automatic drilling equipment for seamless steel pipes according to claim 3, characterized in that: The first feeding unit (2) includes a first feeding frame (21) with an inclined support surface. The oil pipe (9) located on the first feeding frame (21) can move towards the end close to the support part (11) under its own weight and abut against the first limiting member (211). The discharge unit (3) includes a discharge frame (31) with an inclined support surface. The oil pipe (9) located on the discharge frame (31) can move away from the support assembly (11) under its own weight and abut against the second limiting member (311). The supporting assembly (11) includes at least two transfer components (117). Each transfer component (117) includes a transfer plate (1171) and a second linear drive (1172) for driving the transfer plate (1171) to move up and down. The upper edge of the transfer plate (1171) includes a first inclined portion (11711) and a second inclined portion (11712). A first stop portion (11713) is formed between the first inclined portion (11711) and the second inclined portion (11712). When the transfer plate (1171) moves upward... At that time, an oil pipe (9) on the first feed frame (21) is lifted by the transfer plate (1171) and moves down along the first inclined part (11711) to the first stop part (11713) under its own weight. At the same time, the oil pipe (9) on the support part (11) is also lifted by the transfer plate (1171) and moves down along the second inclined part (11712) under its own weight. When the transfer plate (1171) moves down, the oil pipe (9) that has moved down to the first stop part (11713) is transferred to the support part (115).

5. The automatic drilling equipment for seamless steel pipes according to claim 2, characterized in that: A first bracket (134) is provided at one end of the third working frame (131) near the drilling assembly (12). The first bracket (134) is provided with a first support wheel (1341) for supporting the drill rod (133). Several second brackets (135) are rotatably arranged on the side of the third working frame (131) opposite to the drilling assembly (12) of the first bracket (134). The second brackets (135) are provided with second support wheels (1351). A shift fork (1352) is provided on the rotation shaft of the second bracket (135). The third working frame (131) is located on both sides of the shift fork (1352). Limiting posts (1312) are provided on each side. When the shift fork (1352) is attached to the limiting post (1312) on the side away from the drilling assembly (12), the second support wheel (1351) can support the drill rod (133). When the shift fork (1352) is attached to the limiting post (1312) on the side close to the drilling assembly (12), the second support wheel (1351) can avoid the moving part (132). The moving part (132) is provided with a drive post (1329), which is used to switch the shift fork (1352) between two positions.

6. The automatic drilling equipment for seamless steel pipes according to claim 4, characterized in that: A second feeding unit (4) is provided upstream of the first feeding unit (2). A loading unit (5) is provided between the first feeding unit (2) and the second feeding unit (4). The second feeding unit (4) includes a second feeding frame (41) with an inclined support surface. The oil pipe (9) located on the second feeding frame (41) can move towards the end close to the support part (11) under its own weight and abut against the third limiting member (411). The loading unit (5) includes a loading frame (51). At least two second swing frames (52) are rotatably provided on the loading frame (51). A third inclined part (521) is provided on the upper edge of the second swing frame (52). The second stop (522) and the third inclined part (521) form a positioning groove (523) between the second stop (522). The lower end of the second swing frame (52) is hinged to the second pull rod (53). The second pull rod (53) is hinged to the driving end of the third linear drive (54) hinged on the feeding frame (51). The end of the first feeding unit (2) is rotatably provided with a third rotating shaft (56) and a power member for driving the third rotating shaft (56) to rotate. At least two transfer hooks (561) are provided on the third rotating shaft (56). The transfer hooks (561) are used to transfer the oil pipe (9) in the positioning groove (523) to the first feeding unit (2).

7. The automatic drilling equipment for seamless steel pipes according to claim 6, characterized in that: The working end of the drill rod (133) is provided with a water outlet (1332), the second working frame (121) has a first water tank (61), and the support assembly (11) is provided with a second water tank (62) on the side opposite to the drilling assembly (12). When the oil pipe (9) is clamped, one end of the oil pipe (9) extends into the first water tank (61), and the other end of the oil pipe (9) to be drilled extends into the second water tank (62). The first water tank (61) is connected to the first sedimentation tank (63), and the second water tank (62) is connected to the second sedimentation tank (64). The first sedimentation tank (63) is connected to the second sedimentation tank (64) through the first overflow port, and the second sedimentation tank (64) is connected to the purification tank (68) through the second overflow port.

8. The automatic drilling equipment for seamless steel pipes according to claim 7, characterized in that: The working end of the drill rod (133) is provided with a drill bit (1333), which includes a connecting part and a tapered part. Multiple working teeth (13331) are provided on the outer side wall of the connecting part along the circumferential direction. The water outlet (1332) is provided on the drill rod (133). A steel brush (1334) is provided on the side of the drill rod (133) opposite to the drill bit (1333) of the water outlet (1332).

9. The automatic drilling equipment for seamless steel pipes according to claim 7, characterized in that: A water control unit (7) and a transfer unit (81) are provided between the supporting unit (11) and the discharge unit (3). The water control unit (7) includes a water control frame (71) with an inclined support surface. The oil pipe (9) located on the water control frame (71) can move away from the supporting unit (11) under its own weight and abut against the fourth limiting member (711). A lifting unit (72) is provided on one side of the water control frame (71). The lifting unit (72) is used to lift one end of the oil pipe (9) so that the oil pipe (9) is in an inclined state, thereby controlling the water in the oil pipe (9) out. The transfer unit (81) includes a transfer frame. The transfer frame (811) and the transfer plate (812) are provided with a seventh linear drive (813) for driving the transfer plate (812) to move up and down. The upper edge of the transfer plate (812) includes a fourth inclined part. When the transfer plate (812) moves upward and lifts the oil pipe (9) on the water control frame (71), the oil pipe (9) can slide down along the transfer plate (812) to the feeding frame of the feeding unit. The first working frame (111) is provided with an automatic painting device (1182). The automatic painting device (1182) is used to mark the oil pipe (9) that has not been drilled through.

10. A drilling method for an automatic drilling device for seamless steel pipes as described in claim 9, characterized in that: Includes the following steps, S1, the second swing frame (52) moves to lift the oil pipe (9) at the feeding position of the second feeding unit (4), and the lifted oil pipe (9) slides along the second swing frame (52) into the positioning groove (523); S2, the transfer hook (561) is activated to transfer the oil pipe (9) to the first feeding unit (2); S3, the transfer plate (1171) of the transfer component (117) moves upward and simultaneously lifts the oil pipe (9) to be drilled at the feeding position of the first feeding unit (2) and the oil pipe (9) that has been drilled through on the support assembly (11). The oil pipe (9) to be drilled at the feeding position of the first feeding unit (2) moves along the first inclined part (11711) to the first stop part (11713). At the same time, the oil pipe (9) that has been drilled through on the support assembly (11) moves along the second inclined part (11712) to the water control frame (71) of the water control unit (7). Then the transfer plate (1171) of the transfer component (117) moves downward and places the oil pipe (9) on the support assembly (11). The oil pipe (9) located on the support assembly (11) is operated as follows: 3.1.1 The first linear drive (114) is activated, causing the first conveying component (112) to be in a supporting state. Then the first motor (1123) is started, and the oil pipe (9) is moved towards the drilling assembly (12) side through the conveying wheel (1122) until the oil pipe (9) passes through the rotary support cylinder (1222) and the chuck (1221). Then the first linear drive (114) is activated to restore the first conveying component (112) to the tilting avoidance state. 3.1.2 Chuck (1221) locks the oil pipe (9); 3.1.3 The second motor (1223) drives the oil pipe (9) to rotate synchronously with the chuck (1221). The moving part (132) drives the drill rod (133) to extend into the oil pipe (9) and sprays water into the oil pipe (9) through the drill rod (133). The relative squeezing and relative rotation between the oil pipe (9) and the drill rod (133) breaks up the dirt in the oil pipe (9) and cleans the inner wall of the oil pipe (9), so as to realize the drilling of the oil pipe (9). When the oil pipe (9) cannot be drilled, the automatic painting device makes a paint mark on the oil pipe (9) that cannot be drilled. 3.1.4 The drill pipe (133) stops spraying water, the moving part (132) drives the drill pipe (133) back to the initial position, at the same time, the chuck (1221) stops rotating and releases the oil pipe (9), and then the first conveying part (112) conveys the oil pipe (9) to the support part (11); The oil pipe (9) located on the water control frame (71) is operated as follows: 3.2.1 Lifting unit (72) lifts one end of oil pipe (9) to make oil pipe (9) tilted, and drains the residual water in oil pipe (9); 3.2.2 The seventh linear drive unit (813) drives the transfer plate (812) to move upward, and transfers the oil pipe (9) on the water control frame (71) to the discharge frame (31).

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