Drill pipe body processing heat treatment equipment

Abstract

The present invention relates to the technical field of drill pipe body processing, specifically to a drill pipe body processing heat treatment equipment, comprising a base, a support seat is fixedly installed on the upper end face of the base, a loading ring is rotatably installed on the support seat, a loading mechanism for supporting multiple drill pipe bodies is provided on the loading ring, and a clamping mechanism for internal clamping of multiple drill pipe bodies is provided on the loading mechanism. The present invention realizes efficient automation of drill pipe body processing by using the loading mechanism, the clamping mechanism and the heat treatment mechanism in coordination with each other, adopts an automated loading and unloading system, an internal support method and a uniform rotary heat treatment technology, significantly improves the efficiency of the heat treatment process, reduces manual operation and waiting time, ensures the consistency of heat treatment of the same batch of drill pipe bodies by a synchronous internal support method, and ensures that the drill pipe bodies are uniformly heated by rotary heat treatment, thereby greatly improving the efficiency and quality of drill pipe body processing.

Description

Technical Field

[0001] The invention relates to the technical field of drill pipe body processing, in particular to a drill pipe body processing heat treatment device. Background Art

[0002] The drill pipe is a key component connecting the ground drilling rig and the drill bit. It is used to transmit rotational power and drilling fluid to the drill bit, and to provide the necessary pressure during the drilling process. In order to improve the performance of the drill pipe and extend its service life, it is necessary to heat treat the drill pipe body during processing to improve the strength and hardness of the drill pipe body, so that it can withstand the high torque and pressure generated during drilling and reduce deformation and wear.

[0003] At present, there are the following disadvantages when heat treating the drill pipe body: 1. When heat treating the drill pipe body, it is usually necessary to send the drill pipe body into the heat treatment furnace individually. Only after the heat treatment of the current drill pipe body is completed and transported out, the subsequent drill pipe body can be processed and heat treated. The method of processing one drill pipe body at a time leads to low utilization rate of the heat treatment furnace, long production cycle, low overall heat treatment processing efficiency, and frequent loading and unloading operations increase the labor intensity and operation risks of workers; 2. When heat treating the drill pipe body, the drill pipe entering the heat treatment furnace will always remain in a fixed state for heat treatment. During the heat treatment process, the drill pipe body will have uneven heat distribution, which is easy to cause stress concentration, resulting in cracks, deformation and other defects during the heat treatment of the drill pipe body, resulting in uneven material properties and reducing the effect of heat treatment of the drill pipe body. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a drill pipe body processing and heat treatment equipment, which is achieved by the following specific technical means: a drill pipe body processing and heat treatment equipment, including a base, a support seat is fixedly installed on the upper end face of the base, a loading ring is rotatably installed on the support seat, the loading ring is provided with a loading mechanism for supporting multiple drill pipe bodies, and the loading mechanism is provided with a clamping mechanism for internally clamping multiple drill pipe bodies.

[0005] The loading mechanism includes a switching part arranged on the loading ring for switching the clamping mechanism between loading and unloading, the switching part is provided with a pushing part for cooperating with the clamping mechanism to implement loading or unloading, and the switching part is also provided with a limiting part; the clamping mechanism includes an insertion part arranged on the pushing part for synchronously aligning multiple drill pipe bodies, the insertion part is provided with an internal support part and a driving part that provides power for the internal support part.

[0006] The support seat is provided with a heat treatment mechanism for performing rotary heat treatment on a plurality of drill pipe bodies; the heat treatment mechanism comprises a treatment part arranged on the support seat, the treatment part is provided with a matching part and a positioning part for matching the insertion part to implement positioning.

[0007] As a preferred technical solution of the present invention, the switching part includes a supporting slide rail, a first motor, a first gear ring, a first slider and a second slider. The supporting slide rail is fixedly installed at the front end of the loading ring, the first gear ring is fixedly installed on the lower end surface of the loading ring, and the first motor is fixedly installed on the upper end surface of the base. The output end of the first motor is meshed and connected with the first gear ring through a first gear. The first slider is slidably installed on the side of the supporting slide rail close to the loading ring, a left-right symmetrical first spring is fixedly installed between the first slider and the rear side wall of the supporting slide rail, a second slider located in front of the first slider is slidably installed in the supporting slide rail, and a left-right symmetrical second spring is fixedly installed between the second slider and the first slider.

[0008] As a preferred technical solution of the present invention, the pushing part includes a pushing slider, a screw, a second motor and a pushing ring. The pushing slider located in front of the second slider is slidably installed in the supporting slide rail. A screw threadedly connected to the pushing slider is installed in the supporting slide rail through a bearing. The second motor with an output end fixedly connected to the screw is fixedly installed on the supporting slide rail, and a pushing ring is fixedly installed on the upper end of the pushing slider.

[0009] As a preferred technical solution of the present invention, the insertion part includes a pressure cylinder, an insertion cylinder, a groove and a positioning rod. The rear end face of the push ring is fixedly installed with a plurality of pressure cylinders in a circular array. The insertion cylinder is fixedly installed at the center of the rear end face of the pressure cylinder. The insertion cylinder and the pressure cylinder are jointly provided with a sliding hole. The outer ring wall at the rear end of the insertion cylinder is penetrated with a plurality of grooves in a circular array. The positioning rod is fixedly installed in the groove.

[0010] As a preferred technical solution of the present invention, the limiting part includes a limiting ring plate, a loading ring plate, a U-shaped loading hole and a first guide rod. The upper ends of the first slider and the second slider are fixedly installed with a limiting ring plate, a ring groove penetrating the inner and outer ring walls of the limiting ring plate is opened in the limiting ring plate, a placement hole penetrating the inner ring wall of the limiting ring plate is opened in the upper end of the limiting ring plate, a loading ring plate is rotatably installed in the ring groove, the loading ring plate, the limiting ring plate and the pushing ring are coaxial, a plurality of U-shaped loading holes corresponding to the pressing cylinders are opened in the loading ring plate, and a plurality of first guide rods sliding through the front loading ring plate are fixedly installed in a circular array on the rear loading ring plate.

[0011] As a preferred technical solution of the present invention, the driving part includes a screw barrel, a second gear ring and a third motor. The front end surface of the pushing ring is equipped with a screw barrel corresponding to the pressure barrel one by one through a bearing. A second gear is fixedly sleeved on the screw barrel. The front end surface of the pushing ring is equipped with a second gear ring meshingly connected to several second gears through a bearing. The third motor is fixedly installed on the pushing ring, and the output end of the third motor is meshingly connected to the second gear ring through the third gear.

[0012] As a preferred technical solution of the present invention, the inner support part includes a sliding rod and a clamping claw. The sliding rod is slidably installed in the sliding hole on the pressure cylinder. The front end of the sliding rod is threadedly connected to the screw barrel through an opened thread. The rear end of the sliding rod is hinged with a clamping claw corresponding to the groove one by one. The clamping claw is slidably connected to the corresponding positioning rod through a sliding groove opened through it.

[0013] As a preferred technical solution of the present invention, the processing part includes a heat treatment cylinder, an annular support, a support ring, a connecting rod, a fourth motor, a support hole and an electric heating tube. The heat treatment cylinder is fixedly installed on the upper end surface of the support seat, and a front-to-back symmetrical annular support is fixedly installed in the heat treatment cylinder. The support ring is rotatably installed on the inner ring wall of the annular support. The front-to-back symmetrical support rings are fixedly connected by a plurality of connecting rods arranged in a circular array. The heat treatment cylinder is fixedly installed with a fourth motor, and the output end of the fourth motor is transmission-connected to the front support ring through a first transmission gear set. Support holes corresponding to the pressure cylinders are opened in a circular array on the annular support. The electric heating tube is fixedly installed at the center of the heat treatment cylinder, and a plurality of electric heating tubes are also fixedly installed on the inner ring wall of the heat treatment cylinder in a circular array.

[0014] As a preferred technical solution of the present invention, the matching portion includes a connecting hole and a fan-shaped baffle, and the front and rear end faces of the heat treatment cylinder are penetrated by connecting holes corresponding to the pressure cylinder one by one, and the inner ring wall of the connecting hole is hinged with a plurality of fan-shaped baffles inclined toward the inside of the heat treatment cylinder in a circular array.

[0015] As a preferred technical solution of the present invention, the alignment portion includes a semi-ring column and a pressure claw, the front end face of the front support ring and the rear end face of the rear support ring are both fixedly installed with semi-ring columns corresponding to the support holes one by one, and the inner ring wall of the support hole is fixedly installed with a plurality of pressure claws in a circular array.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes efficient automation of drill pipe body processing by using the loading mechanism, clamping mechanism and heat treatment mechanism in coordination with each other, adopts an automated loading and unloading system, an internal support method and uniform rotary heat treatment technology, significantly improves the efficiency of the heat treatment process, and reduces manual operation and waiting time. The consistency of heat treatment of the drill pipe bodies of the same batch is ensured by a synchronous internal support method, and the drill pipe bodies are ensured to be uniformly heated by rotary heat treatment, thereby greatly improving the efficiency and quality of drill pipe body processing.

[0017] 2. The present invention uses the loading mechanism and the clamping mechanism in coordination with each other, and after the drill pipe bodies are installed to the corresponding positions one by one, multiple drill pipe bodies can be automatically clamped, fed and discharged in a unified manner, so as to greatly improve the efficiency of the heat treatment process, reduce manual operation time and waiting time, and ensure the consistency of the heat treatment conditions of each drill pipe body through unified operation, thereby improving the batch processing consistency of the product.

[0018] 3. The present invention adopts an internal support method to ensure the stability of the drill pipe body during material removal and feeding through the setting of a clamping mechanism, so as to ensure the position accuracy of the drill pipe body in the heat treatment furnace, thereby ensuring that the drill pipe body is heated more evenly during the heat treatment process, reducing the stress concentration caused by position deviation, and the internal support can quickly position the drill pipe body during material feeding and discharging, reducing the adjustment and waiting time, thereby improving the efficiency of the entire production line.

[0019] 4. The present invention performs uniform rotational heat treatment on the drill pipe body by means of a heat treatment mechanism. At the same time, the drill pipe body is supported at multiple points during the heat treatment process to ensure that all parts of the drill pipe body are heated evenly, avoiding thermal stress and thermal deformation, thereby maintaining the consistency of material properties. Rotary heat treatment can shorten the heat treatment cycle and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention when it is working.

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

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the loading mechanism and the clamping mechanism of the present invention.

[0023] Figure 4 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0024] Figure 5 for Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0025] Figure 6 for Figure 3 Schematic diagram of the enlarged structure at point C in the middle.

[0026] Figure 7 It is a schematic diagram of the cross-sectional three-dimensional structure of the heat treatment mechanism of the present invention.

[0027] Figure 8 for Figure 7 Schematic diagram of the structure at D in the figure.

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the drill pipe body.

[0029] In the figure: 1, base; 2, support seat; 3, loading ring; 4, loading mechanism; 41, switching part; 411, supporting slide rail; 412, first motor; 413, first gear ring; 414, first slider; 415, second slider; 42, pushing part; 421, pushing slider; 422, screw rod; 423, second motor; 424, pushing ring; 43, limiting part; 431, limiting ring plate; 432, loading ring plate; 433, U-shaped loading hole; 434, first guide rod; 5, clamping mechanism; 51, inserting part; 511, pressing cylinder; 512, inserting into the cylinder; 513, groove; 514, positioning rod; 52, driving part; 521, screw barrel; 522, second gear ring; 523, third motor; 53, inner support part; 531, slide rod; 532, clamping claw; 6, heat treatment mechanism; 61, treatment part; 611, heat treatment cylinder; 612, annular support; 613, support ring; 614, connecting rod; 615, fourth motor; 616, support hole; 617, electric heating pipe; 62, matching part; 621, connecting hole; 622, fan-shaped baffle; 63, alignment part; 631, semi-ring column; 632, pressing claw. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1A drill pipe body processing heat treatment equipment comprises a base 1, a support seat 2 is fixedly installed on the upper end surface of the base 1, a loading ring 3 is rotatably installed on the support seat 2, a loading mechanism 4 for supporting a plurality of drill pipe bodies is arranged on the loading ring 3, a clamping mechanism 5 for internally clamping a plurality of drill pipe bodies is arranged on the loading mechanism 4; the loading mechanism 4 comprises a switching part 41 arranged on the loading ring 3 for switching the clamping mechanism 5 between loading and unloading, a pushing part 42 for cooperating with the clamping mechanism 5 to load or unload is arranged on the switching part 41, and a limiting part 43 is also arranged on the switching part 41.

[0032] See also Figure 1 The clamping mechanism 5 includes an inserting portion 51 disposed on the pushing portion 42 for synchronously aligning a plurality of drill pipe bodies, and an inner supporting portion 53 and a driving portion 52 for providing power to the inner supporting portion 53 are disposed on the inserting portion 51 .

[0033] See also Figure 1 and Figure 7 A heat treatment mechanism 6 for performing rotary heat treatment on a plurality of drill pipe bodies is provided on the support seat 2; the heat treatment mechanism 6 includes a treatment portion 61 provided on the support seat 2, and a matching portion 62 and a positioning portion 63 for matching the insertion portion 51 to implement positioning are provided on the treatment portion 61.

[0034] See also Figure 1 , Figure 2 and Figure 3 The switching part 41 includes a supporting rail 411, a first motor 412, a first gear ring 413, a first slider 414 and a second slider 415. The supporting rail 411 is fixedly installed at the front end of the loading ring 3, the first gear ring 413 is fixedly installed at the lower end surface of the loading ring 3, the first motor 412 is fixedly installed at the upper end surface of the base 1, and the output end of the first motor 412 is meshed and connected with the first gear ring 413 through a first gear. A first slider 414 is slidably installed on the side of the supporting rail 411 close to the loading ring 3, a left-right symmetrical first spring is fixedly installed between the first slider 414 and the rear side wall of the supporting rail 411, a second slider 415 located in front of the first slider 414 is slidably installed in the supporting rail 411, and a left-right symmetrical second spring is fixedly installed between the second slider 415 and the first slider 414.

[0035] See also Figure 1 , Figure 2 and Figure 3The pushing part 42 includes a pushing slider 421, a screw 422, a second motor 423 and a pushing ring 424. The pushing slider 421 located in front of the second slider 415 is slidably installed in the supporting slide rail 411. The screw 422 threadedly connected to the pushing slider 421 is installed in the supporting slide rail 411 through a bearing. The second motor 423 with an output end fixedly connected to the screw 422 is fixedly installed on the supporting slide rail 411, and a pushing ring 424 is fixedly installed on the upper end of the pushing slider 421.

[0036] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The insertion portion 51 includes a pressure tube 511, an insertion tube 512, a groove 513 and a positioning rod 514. A plurality of pressure tubes 511 are fixedly installed on the rear end surface of the push ring 424 in a circumferential array. An insertion tube 512 is fixedly installed at the center of the rear end surface of the pressure tube 511. A sliding hole is commonly provided in the insertion tube 512 and the pressure tube 511. A plurality of grooves 513 are penetrated through the outer ring wall at the rear end of the insertion tube 512 in a circumferential array. A positioning rod 514 is fixedly installed in the groove 513.

[0037] See also Figure 1 , Figure 2 and Figure 3 The limiting portion 43 includes a limiting ring plate 431, a loading ring plate 432, a U-shaped loading hole 433 and a first guide rod 434. The upper ends of the first slider 414 and the second slider 415 are fixedly installed with the limiting ring plate 431. A ring groove penetrating the inner and outer ring walls of the limiting ring plate 431 is provided in the limiting ring plate 431. A placement hole penetrating the inner ring wall of the limiting ring plate 431 is provided at the upper end. The loading ring plate 432 is rotatably installed in the ring groove. The loading ring plate 432, the limiting ring plate 431 and the pushing ring 424 are coaxial. A plurality of U-shaped loading holes 433 corresponding to the pressing cylinder 511 are penetrated on the loading ring plate 432. A plurality of first guide rods 434 slidingly penetrating the front loading ring plate 432 are fixedly installed in a circular array on the rear loading ring plate 432.

[0038] During specific work, when the drill pipe body needs to be heat treated, the drill pipe body is hoisted by a hoist fixedly installed on the base 1 and moved to above the placement hole of the limit ring plate 431. At this time, the second motor 423 is in an unstarted state, and the push slider 421 is located at the front end of the support slide rail 411, while the first slider 414 and the second slider 415 will not move under the action of the first spring and the second spring.

[0039] Then, a manipulator fixed on the base 1 grabs and synchronously rotates the loading ring plates 432 on both sides, and stops running the manipulator when the U-shaped loading hole 433 is aligned with the placement hole. Then, the hoist is started to lower the hoisted drill pipe body, and put it into the U-shaped loading hole 433 on the loading ring plates 432 on both sides through the placement hole, so that the loading ring plates 432 on both sides support the drill pipe body, thereby completing the loading of the first drill pipe body. Then, the manipulator controls the loading ring plate 432 in the same way to align the next U-shaped loading hole 433 with the placement hole. At this time, the hoist synchronously grabs the drill pipe body, and the operation is repeated until multiple drill pipe bodies are fully loaded.

[0040] When the manipulator rotates the loading ring plate 432, the U-shaped loading hole 433 of the offset placement hole will be blocked by the inner ring wall of the limiting ring plate 431, thereby limiting the drill pipe body placed in the U-shaped loading hole 433 to ensure that the position of the drill pipe body in the U-shaped loading hole 433 will not be offset, thereby performing preliminary positioning of the inserted drill pipe body.

[0041] See also Figure 1 , Figure 3 and Figure 5 The driving part 52 includes a screw barrel 521, a second gear ring 522 and a third motor 523. The front end surface of the pushing ring 424 is equipped with a screw barrel 521 corresponding to the pressure barrel 511 through a bearing. A second gear is fixedly sleeved on the screw barrel 521. The front end surface of the pushing ring 424 is equipped with a second gear ring 522 meshingly connected with a plurality of second gears through a bearing. The third motor 523 is fixedly installed on the pushing ring 424. The output end of the third motor 523 is meshingly connected with the second gear ring 522 through the third gear.

[0042] See also Figure 1 , Figure 4 , Figure 5 and Figure 6 The inner support part 53 includes a sliding rod 531 and a clamping claw 532. The sliding rod 531 is slidably installed in the sliding hole on the pressure cylinder 511. The front end of the sliding rod 531 is threadedly connected to the screw cylinder 521 through an opened thread. The rear end of the sliding rod 531 is hinged with a clamping claw 532 corresponding to the groove 513 one by one. The clamping claw 532 is slidably connected to the corresponding positioning rod 514 through a sliding groove opened through it.

[0043] During specific operation, after the loading of the drill pipe body is completed, the U-shaped loading hole 433 of the drill pipe body loaded last is just aligned with the placement hole, and then the second motor 423 is started to rotate the screw 422 to move the push slider 421 backward, and push the pressure tube 511 toward the drill pipe body through the push ring 424. Due to the positioning of the limit portion 43, the insertion tube 512 corresponds to the drill pipe body one by one, and the pressure tube 511 is inserted into the tube hole of the drill pipe body corresponding to the U-shaped loading hole 433 with the insertion tube 512, and then the second motor 423 is started again, so that the rear end face of the pressure tube 511 is fitted with the front end face of the drill pipe body, and all the drill pipe bodies are moved to the same horizontal plane through the rear end face of the pressure tube 511, so as to position the drill pipe body again. At this time, the insertion tube 512 is completely in the tube hole of the drill pipe body.

[0044] Then the third motor 523 can be started to rotate the second gear ring 522 through the third gear, and the second gear ring 522 will synchronously rotate the screw barrel 521 through the second gear, thereby causing the sliding rod 531 to move backward in the sliding hole, and the sliding groove of the clamping jaw 532 slides relative to the positioning rod 514, and the clamping jaw 532 rotates with the positioning rod 514 as the center point, so that the clamping jaw 532 opens to all sides in the tube hole of the drill pipe body, so that the clamping jaw 532 supports and clamps the drill pipe body internally, so that the drill pipe body can always be kept stable when taking and feeding materials.

[0045] See also Figure 1 and Figure 7 The processing part 61 includes a heat treatment cylinder 611, an annular support 612, a support ring 613, a connecting rod 614, a fourth motor 615, a support hole 616 and an electric heating pipe 617. The heat treatment cylinder 611 is fixedly installed on the upper end surface of the support seat 2. A front-to-back symmetrical annular support 612 is fixedly installed in the heat treatment cylinder 611. A support ring 613 is rotatably installed on the inner ring wall of the annular support 612. The front-to-back symmetrical support rings 613 are connected by a plurality of connecting rods 614 arranged in a circular array. The heat treatment cylinder 611 is fixedly connected with a fourth motor 615, and the output end of the fourth motor 615 is transmission-connected with the support ring 613 at the front side through the first transmission gear set. The annular support 612 is provided with support holes 616 corresponding to the pressing cylinder 511 in a circumferential array. An electric heating pipe 617 is fixedly installed at the center of the heat treatment cylinder 611, and a plurality of electric heating pipes 617 are also fixedly installed on the inner ring wall of the heat treatment cylinder 611 in a circumferential array.

[0046] See also Figure 1 , Figure 7 and Figure 8The matching part 62 includes a connecting hole 621 and a fan-shaped baffle 622. The front and rear end surfaces of the heat treatment cylinder 611 are penetrated with connecting holes 621 corresponding to the pressure cylinder 511 one by one. The inner ring wall of the connecting hole 621 is hinged with a plurality of fan-shaped baffles 622 inclined toward the inside of the heat treatment cylinder 611 in a circular array.

[0047] See also Figure 1 and Figure 7 The alignment portion 63 includes a semi-ring column 631 and a pressing claw 632. The front end surface of the front support ring 613 and the rear end surface of the rear support ring 613 are fixedly installed with semi-ring columns 631 corresponding to the support holes 616 one by one, and the inner ring wall of the support hole 616 is fixedly installed with a plurality of pressing claws 632 in a circular array.

[0048] During specific operation, after the clamping mechanism 5 completes clamping of the drill pipe body, the manipulator is withdrawn and the second motor 423 is started to push the slider 421 to continue moving backward. During the movement, the clamped drill pipe body is pushed backward by the clamping mechanism 5 until the pressure tube 511 is inserted into the U-shaped loading hole 433 of the front loading ring plate 432.

[0049] During this process, the rear ends of multiple drill pipe bodies are simultaneously inserted into the connecting hole 621 on the front side, and the drill pipe body will push open the fan-shaped baffle 622 in the connecting hole 621 on this side, so that the fan-shaped baffle 622 rotates toward the inner wall of the connecting hole 621 with the hinge point as the center. When multiple drill pipe bodies extend into the heat treatment barrel 611 but do not contact the support ring 613, the second motor 423 is stopped, and the fourth motor 615 is started to rotate the support ring 613 through the first transmission gear set and rotate with the semi-ring column 631, so that the front semi-ring column 631 is in contact with the rear end of the drill pipe body closest to it, thereby calibrating the relative position of the drill pipe body and the front support hole 616.

[0050] Then, the second motor 423 is started to make the push ring 424 fit with the front limiting ring plate 431, and the push ring 424 continues to push the front limiting ring plate 431 backward until the pressing cylinder 511 is inserted into the U-shaped loading hole 433 of the rear loading ring plate 432. At this time, the front limiting ring plate 431 squeezes the second spring and pushes the rear limiting ring plate 431 backward through the second spring, thereby continuing to move the front and rear limiting ring plates 431 toward the heat treatment cylinder 611. Until the rear end of the pressure tube 511 pushes the drill pipe body into the heat treatment tube 611, when the drill pipe body is inserted into the support hole 616, the pressure claw 632 will support the outer ring wall of the drill pipe body, so that the drill pipe body is in the center position of the support hole 616, thereby completing the unified clamping and feeding of multiple drill pipe bodies, so that in the process of pushing the drill pipe body into the heat treatment tube 611 for heat treatment, the carrier ring plate 432 can always ensure the accuracy of the positions of multiple drill pipe bodies.

[0051] After the pushing portion 42 cooperates with the clamping mechanism 5 to complete the clamping and feeding of multiple drill pipe bodies, the third motor 523 is started in reverse to release the internal lock of the drill pipe body by the clamping mechanism 5, and the second motor 423 is started in reverse to move the pressing cylinder 511 forward through the pushing portion 42, and the pressing cylinder 511 is disengaged from the heat treatment cylinder 611, and then the pushing slider 421 is continued to move forward so that the pressing cylinder 511 is still in the U-shaped loading hole 433 of the front and rear side loading ring plates 432. At this time, the second motor 423 can be stopped, and then the first motor 412 is started to rotate the loading ring 3 through the first gear and the first gear ring 413, thereby rotating the supporting slide rail 411 with the loading mechanism 4 and the clamping mechanism 5 by 180 degrees, so that the pressing cylinder 511 at this time corresponds to the connecting hole 621 on the rear side.

[0052] At the same time, the electric heating tube 617 and the fourth motor 615 are started. The fourth motor 615 will rotate the support ring 613 through the first transmission gear set, thereby causing the drill pipe body in the support hole 616 to rotate around the electric heating tube 617 located in the center of the heat treatment tube 611, thereby performing uniform rotational heat treatment on the drill pipe body to ensure that all parts of the drill pipe body can be heated evenly. The several fan-shaped baffles 622 that have been detached from the drill pipe body and reset form a conical structure with the small-diameter end facing the inside of the heat treatment tube 611 in the connecting hole 621, which can help reduce the outflow of heat from the heat treatment tube 611.

[0053] After the heat treatment mechanism 6 completes the heat treatment of the drill pipe body, the second motor 423 is started so that it cooperates with the clamping mechanism 5 through the pushing part 42 to move the pressure tube 511 forward and insert it into the connecting hole 621 on the rear side. When the pressure tube 511 extends into the heat treatment tube 611 but does not contact the support ring 613 on the rear side, the second motor 423 is stopped and the fourth motor 615 is started to align the pressure tube 511 with the support hole 616 through the semi-ring column 631.

[0054] Then, the second motor 423 is started to make the front end face of the pressure cylinder 511 fit with the rear end face of the drill pipe body, so that the other side of the drill pipe body can be clamped again through the clamping mechanism 5, and then the second motor 423 is started in reverse to pull the heat-treated drill pipe body out of the connecting hole 621 on the rear side. During the pulling-out process, the front and rear loading ring plates 432 always support the drill pipe body, and when the sliding block 421 is pushed to be located on the side of the supporting slide rail 411 away from the heat treatment mechanism 6, the unified clamping and discharging of multiple drill pipe bodies is completed. At this time, the clamping mechanism 5 can be released. Similarly, with the cooperation of the mechanical claw, the heat-treated drill pipe body is moved out of the U-shaped loading hole 433 one by one through the hanger to complete the heat treatment processing of this batch of drill pipe bodies.

[0055] See also Figure 1-Figure 9 Working principle: When the drill pipe body needs to be heat treated, the drill pipe body hoisted by the hanger fixedly installed on the base 1 is moved to the top of the placement hole of the limiting ring plate 431, and then the manipulator is stopped when the U-shaped loading hole 433 is aligned with the placement hole, and then the hanger is started to lower the hoisted drill pipe body and put it into the U-shaped loading hole 433, thereby completing the loading of the first drill pipe body, and then the operation is repeated until the drill pipe body is fully loaded.

[0056] Then, the second motor 423 is started to make the pressure tube 511 and the insertion tube 512 be inserted into the tube hole of the drill pipe body corresponding to the U-shaped loading hole 433 through the pushing part 42, and then the second motor 423 is started again to make the pressure tube 511 move all the drill pipe bodies to their front end faces in the same horizontal plane, and the third motor 523 is started to support and clamp the drill pipe body internally through the inner support part 53.

[0057] Then, the second motor 423 is started to push the sliding block 421 to continue to move backward to push the drill pipe body backward and insert it into the connecting hole 621 on the front side. When the drill pipe body extends into the heat treatment barrel 611 but does not contact the support ring 613, the second motor 423 is stopped and the fourth motor 615 is started to calibrate the relative position of the drill pipe body and the front support hole 616 through the processing part 61. Then, the second motor 423 is started again to push the drill pipe body into the heat treatment barrel 611 through the clamping mechanism 5 and the loading mechanism 4.

[0058] Then, the inner lock of the drill pipe body by the clamping mechanism 5 is released, and the second motor 423 is started in reverse to move the pressing cylinder 511 forward through the pushing portion 42, so that the pushing slider 421 moves until the pressing cylinder 511 is still in the U-shaped loading hole 433 of the front and rear side loading ring plates 432. At this time, the second motor 423 can be stopped, and then the loading mechanism 4 and the clamping mechanism 5 are rotated 180 degrees through the switching portion 41. At this time, the electric heating tube 617 and the fourth motor 615 are started, and the drill pipe body is subjected to uniform rotational heat treatment through the heat treatment mechanism 6.

[0059] After the heat treatment mechanism 6 completes the heat treatment of the drill pipe body, the second motor 423 is started so that it cooperates with the clamping mechanism 5 through the pushing part 42 to insert the pressure tube 511 into the connecting hole 621 on the rear side. When the pressure tube 511 extends into the heat treatment tube 611 but does not contact the support ring 613 on the rear side, the second motor 423 is stopped and the fourth motor 615 is started to align the pressure tube 511 with the support hole 616 through the semi-ring column 631.

[0060] Then, the second motor 423 is started to make the pressure cylinder 511 fit with the drill pipe body, and the drill pipe body is clamped again by the clamping mechanism 5. The second motor 423 is started in reverse to pull the heat-treated drill pipe body out from the connecting hole 621 on the rear side, and when the sliding block 421 is pushed to be located on the side of the supporting slide rail 411 away from the heat treatment mechanism 6, the unified clamping and discharging of multiple drill pipe bodies is completed. At this time, the clamping mechanism 5 can be released. Similarly, the heat-treated drill pipe bodies are moved out of the U-shaped loading hole 433 one by one through the hanger to complete the heat treatment processing of this batch of drill pipe bodies.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drill pipe body processing heat treatment equipment, comprising a base (1), characterized in that: A support seat (2) is fixedly mounted on the upper end surface of the base (1); a loading ring (3) is rotatably mounted on the support seat (2); a loading mechanism (4) for supporting a plurality of drill pipe bodies is disposed on the loading ring (3); and a clamping mechanism (5) for internally clamping a plurality of drill pipe bodies is disposed on the loading mechanism (4); The loading mechanism (4) comprises a switching portion (41) arranged on the loading ring (3) for switching the clamping mechanism (5) between loading and unloading, the switching portion (41) being provided with a pushing portion (42) for cooperating with the clamping mechanism (5) to implement loading or unloading, and the switching portion (41) being further provided with a limiting portion (43); The switching part (41) comprises a supporting slide rail (411), a first motor (412), a first gear ring (413), a first slider (414) and a second slider (415); the supporting slide rail (411) is fixedly mounted on the front end of the loading ring (3); the first gear ring (413) is fixedly mounted on the lower end surface of the loading ring (3); the first motor (412) is fixedly mounted on the upper end surface of the base (1); the output end of the first motor (412) is meshedly connected with the first gear ring (413) via a first gear; the first slider (414) is slidably mounted on a side of the supporting slide rail (411) close to the loading ring (3); a left-right symmetrical first spring is fixedly mounted between the first slider (414) and the rear side wall of the supporting slide rail (411); a second slider (415) located in front of the first slider (414) is slidably mounted in the supporting slide rail (411); and a left-right symmetrical second spring is fixedly mounted between the second slider (415) and the first slider (414); The clamping mechanism (5) comprises an inserting portion (51) arranged on the pushing portion (42) for synchronously aligning a plurality of drill pipe bodies, and an inner supporting portion (53) and a driving portion (52) for providing power to the inner supporting portion (53) are arranged on the inserting portion (51); A heat treatment mechanism (6) for performing a rotary heat treatment on a plurality of drill pipe bodies is arranged on the support seat (2); The heat treatment mechanism (6) comprises a treatment portion (61) arranged on the support seat (2), and the treatment portion (61) is provided with a matching portion (62) and a positioning portion (63) for matching with the insertion portion (51) to implement positioning.

2. The drill pipe body processing heat treatment equipment according to claim 1, characterized in that: The pushing portion (42) comprises a pushing slider (421), a screw (422), a second motor (423) and a pushing ring (424); the pushing slider (421) located in front of the second slider (415) is slidably installed in the supporting slide rail (411); a screw (422) threadedly connected to the pushing slider (421) is installed in the supporting slide rail (411) via a bearing; a second motor (423) whose output end is fixedly connected to the screw (422) is fixedly installed on the supporting slide rail (411); and a pushing ring (424) is fixedly installed on the upper end of the pushing slider (421).

3. The drill pipe body processing heat treatment equipment according to claim 2, characterized in that: The inserting portion (51) comprises a pressing cylinder (511), an inserting cylinder (512), a groove (513) and a positioning rod (514); a plurality of pressing cylinders (511) are fixedly mounted on the rear end surface of the pushing ring (424) in a circumferential array manner; an inserting cylinder (512) is fixedly mounted at the center of the rear end surface of the pressing cylinder (511); a sliding hole is provided in the inserting cylinder (512) and the pressing cylinder (511); a plurality of grooves (513) are penetrated through the outer ring wall at the rear end of the inserting cylinder (512) in a circumferential array manner; a positioning rod (514) is fixedly mounted in the groove (513).

4. The drill pipe body processing heat treatment equipment according to claim 3, characterized in that: The limiting portion (43) comprises a limiting ring plate (431), a loading ring plate (432), a U-shaped loading hole (433) and a first guide rod (434); the limiting ring plate (431) is fixedly mounted on the upper ends of the first slider (414) and the second slider (415); a ring groove penetrating the inner and outer ring walls of the limiting ring plate (431) is provided in the limiting ring plate (431); a placement hole penetrating the inner ring wall of the limiting ring plate (431) is provided at the upper end; a loading ring plate (432) is rotatably mounted in the ring groove; the loading ring plate (432), the limiting ring plate (431) and the pushing ring (424) are coaxial; a plurality of U-shaped loading holes (433) corresponding to the pressing cylinders (511) are penetratingly mounted on the loading ring plate (432); a plurality of first guide rods (434) slidingly penetrating the front loading ring plate (432) are fixedly mounted on the rear loading ring plate (432) in a circular array.

5. The drill pipe body processing heat treatment equipment according to claim 3, characterized in that: The driving part (52) comprises a screw barrel (521), a second gear ring (522) and a third motor (523); a screw barrel (521) corresponding to the pressure barrel (511) is mounted on the front end surface of the pushing ring (424) via a bearing; a second gear is fixedly sleeved on the screw barrel (521); a second gear ring (522) meshingly connected with a plurality of second gears is mounted on the front end surface of the pushing ring (424) via a bearing; a third motor (523) is fixedly mounted on the pushing ring (424); an output end of the third motor (523) is meshingly connected with the second gear ring (522) via a third gear.

6. The drill pipe body processing heat treatment equipment according to claim 3, characterized in that: The inner support portion (53) includes a sliding rod (531) and a clamping claw (532). The sliding rod (531) is slidably installed in the sliding hole on the pressure cylinder (511). The front end of the sliding rod (531) is threadedly connected to the screw cylinder (521) through an opened thread. The rear end of the sliding rod (531) is hinged with a clamping claw (532) corresponding to the groove (513) one by one. The clamping claw (532) is slidably connected to the corresponding positioning rod (514) through a sliding groove opened through it.

7. The drill pipe body processing heat treatment equipment according to claim 3, characterized in that: The processing part (61) comprises a heat treatment cylinder (611), an annular support (612), a support ring (613), a connecting rod (614), a fourth motor (615), a support hole (616) and an electric heating pipe (617); the heat treatment cylinder (611) is fixedly mounted on the upper end surface of the support seat (2); a front-to-back symmetrical annular support (612) is fixedly mounted inside the heat treatment cylinder (611); a support ring (613) is rotatably mounted on the inner ring wall of the annular support (612); and the front-to-back symmetrical support rings (613) are connected by a plurality of connecting rods arranged in a circular array. The connecting rod (614) is fixedly connected, and a fourth motor (615) is fixedly installed on the heat treatment cylinder (611). The output end of the fourth motor (615) is transmission-connected to the support ring (613) on the front side via a first transmission gear set. Support holes (616) corresponding to the pressure cylinder (511) are opened in a circular array on the annular support (612). An electric heating pipe (617) is fixedly installed at the center of the heat treatment cylinder (611). A plurality of electric heating pipes (617) are also fixedly installed on the inner ring wall of the heat treatment cylinder (611) in a circular array.

8. The drill pipe body processing heat treatment equipment according to claim 7, characterized in that: The matching portion (62) includes a connecting hole (621) and a fan-shaped baffle (622), and the front and rear end surfaces of the heat treatment cylinder (611) are penetrated by connecting holes (621) corresponding to the pressure cylinder (511) one by one, and the inner ring wall of the connecting hole (621) is hinged with a plurality of fan-shaped baffles (622) inclined toward the inside of the heat treatment cylinder (611) in a circular array.

9. The drill pipe body processing heat treatment equipment according to claim 8, characterized in that: The alignment portion (63) comprises a semi-ring column (631) and a pressing claw (632); the front end surface of the front support ring (613) and the rear end surface of the rear support ring (613) are both fixedly mounted with semi-ring columns (631) corresponding to the support holes (616) one by one; and the inner ring wall of the support hole (616) is fixedly mounted with a plurality of pressing claws (632) in a circumferential array.

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