A drill collar hot straightening machine

By combining dual straightening and cooling protection measures, the problems of low efficiency and easy damage of parts in traditional drill collar straightening machines have been solved, realizing an efficient and reliable drill collar straightening process, improving production efficiency and equipment service life.

CN120885582BActive Publication Date: 2025-12-26SHANXI ZHONGHE NONMAGNETIC DRILLING TOOL CO LTD
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Patent Information

Application Number
CN202511430630.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-10-09
Publication Date
2025-12-26
Estimated Expiration
2045-10-09

AI Technical Summary

Technical Problem

Traditional drill collar straighteners have low straightening efficiency, making it difficult to match the pace of continuous production lines. Parts are prone to thermal fatigue cracks, requiring frequent shutdowns for replacement, which affects the operation progress.

Method used

The drill collar hot straightening machine adopts a dual straightening and coordinated operation, which realizes multi-point synchronous straightening through four hydraulic cylinders and auxiliary clamping components. The electric motor drives the clamping blocks to change working positions in turn, the protective components disperse high-temperature contact points, and the cooling components quickly dissipate heat to protect the parts.

Benefits of technology

It significantly shortens the straightening cycle, improves straightening efficiency, reduces parts wear and replacement frequency, extends equipment life, and avoids high-temperature cracks affecting drill collar quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a drill collar hot straightening machine. It relates to the technical field of drill collar processing. The drill collar hot straightening machine comprises a hot straightening machine, four auxiliary assemblies are arranged on the hot straightening machine, and each of the four auxiliary assemblies comprises a fixing frame, two sliding plates, two strip-shaped plates, two toothed racks, two fixed plates, a round rod, a circular gear, a cam, a connecting rod, a connecting frame, two connecting rods, a hydraulic cylinder, an adapter block and a hinged rod. The fixing frame is fixedly installed on the hot straightening machine, the two sliding plates are slidingly installed on the fixing frame, the two strip-shaped plates are fixedly installed on the sides of the two sliding plates close to each other, and the two toothed racks are fixedly installed on the sides of the two strip-shaped plates close to each other. The application has the advantages of double straightening cooperation, improved straightening efficiency, timely replacement of damaged parts and prolonged service life of the parts of the equipment.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drill collar processing, in particular to a drill collar hot straightening machine. BACKGROUND

[0002] The drill collar is at the lowermost part of the drill string and is the main component of the lower drilling tool assembly. Its main feature is that it has a large wall thickness, a large gravity and a large rigidity. The drill collar is prone to bending deformation due to uneven stress during downhole operation. In order to avoid waste and ensure normal use of the drill collar, the drill collar can be straightened by a hot straightening machine. The drill collar can be put into use after being straightened by the hot straightening machine. The hot straightening machine can correct the shape defects of metal plastic processing products. The angle and pressure of the straightening roller are adjusted by a hydraulic system to extrude and correct the high-temperature metal plate, eliminate the internal residual stress and warping deformation thereof, and make the bending and other defects be eliminated under the action of external force through various straightening processes, so that the product reaches a qualified state.

[0003] Conventionally, the drill collar straightening relies on a single-point hydraulic pressure head on the straightening machine to straighten in sections. The drill collar needs to be stopped and adjusted in position for multiple times, which takes a long time and is difficult to match the rhythm of the continuous production line. The correction efficiency is low. The parts used to support the drill collar are in direct contact with the drill collar for a long time, which is prone to thermal fatigue cracks. The parts need to be frequently replaced, which affects the operation progress.

[0004] Therefore, it is necessary to provide a new drill collar hot straightening machine to solve the above technical problems. SUMMARY

[0005] The present application aims to provide a drill collar hot straightening machine with double straightening cooperation, improved straightening efficiency, timely replacement of easily damaged parts, and prolonged service life of the parts of the equipment.

[0006] To solve the above technical problems, the drill collar hot straightening machine provided by the present application comprises a hot straightening machine, four auxiliary assemblies are arranged on the hot straightening machine, each of the four auxiliary assemblies comprises a fixing frame, two sliding plates, two strip-shaped plates, two first racks, two fixed plates, a first round rod, a first circular gear, a cam, a connecting rod, a connecting frame, two connecting rods, a second hydraulic cylinder, an adapter block and a hinged rod, the fixing frame is fixedly installed on the hot straightening machine, the two sliding plates are slidingly installed on the fixing frame, the two strip-shaped plates are fixedly installed on the sides of the two sliding plates close to each other, the two first racks are fixedly installed on the sides of the two strip-shaped plates close to each other, the two fixed plates are fixedly installed on the hot straightening machine, the first round rod is rotatably installed on the two fixed plates, the first circular gear is fixedly sleeved on the first round rod, the cam is fixedly sleeved on the first round rod, the connecting rod is fixedly installed on one side of the cam, the connecting frame is fixedly installed on the hot straightening machine, the two connecting rods are rotatably installed on the connecting frame, the second hydraulic cylinder is fixedly installed between the two connecting rods, the adapter block is fixedly installed on the output rod of the second hydraulic cylinder, the hinged rod is rotatably installed on the adapter block, one end of the hinged rod is rotatably connected with the connecting rod, the two sliding plates are provided with adjusting assemblies, each of the two adjusting assemblies comprises a driven circular block, a circular block, four sliding blocks, four clamping blocks and a first electric motor, the driven circular block is rotatably installed on the sliding plate, the circular block is fixedly installed on the top of the driven circular block, the four sliding blocks are slidingly installed on the circular block, the four clamping blocks are fixedly installed on the four sliding blocks respectively, and the first electric motor is arranged on the sliding plate and fixedly connected with the bottom of the driven circular block.

[0007] Preferably, the hot straightening machine is provided with four protection assemblies, each of the four protection assemblies comprises: a connecting block, a built-in groove, a mounting plate, a circular plate, a circular connecting block, a second electric motor, a third electric motor, two bevel gears, a screw rod, two vertical rods, a receiving plate, a moving plate, four screws, four linkage blocks and four arc-shaped plates, the connecting block is fixedly installed on the hot straightening machine, the built-in groove is formed in the connecting block, the mounting plate is fixedly installed on the connecting block, the circular plate is rotatably installed on the mounting plate, the circular connecting block is fixedly installed on one side of the circular plate, the second electric motor is fixedly installed on the inner wall of the circular connecting block, the third electric motor is fixedly installed on the mounting plate, the two bevel gears are fixedly installed on the circular connecting block and the third electric motor respectively, the two bevel gears are engaged with each other, the screw rod is rotatably installed on the circular plate, the two vertical rods are fixedly installed on one side of the circular plate, the receiving plate is fixedly installed on the ends of the two vertical rods away from the circular plate, the receiving plate is rotatably connected with the screw rod, the moving plate is threadedly installed on the screw rod, the four screws are slidably installed on the moving plate, the four linkage blocks are slidably installed on the four screws respectively, and the four arc-shaped plates are fixedly installed on the four linkage blocks respectively, and the four arc-shaped plates are matched with the built-in groove.

[0008] Preferably, in the four auxiliary assemblies, the bottoms of the eight sliding plates are inlaid with a plurality of rolling beads one, the bottoms of the eight circular blocks are inlaid with a plurality of rolling beads two, and the plurality of rolling beads two are in contact with the tops of the eight sliding plates respectively.

[0009] Preferably, in the four auxiliary assemblies, four installation grooves are formed in any one of the circular blocks, four sliding blocks are slidably installed in the corresponding installation grooves respectively, side grooves are formed on the two sides of the four installation grooves, and side blocks are fixedly installed on the two sides of the four sliding blocks and slidably installed in the corresponding side grooves.

[0010] Preferably, a screw cap is threadedly provided on each of the plurality of screws, and the screw cap is in contact with the corresponding moving plate.

[0011] Preferably, in the four protection assemblies, rubber hoses are fixedly installed on the bottoms of the four moving plates, and the other ends of the rubber hoses are fixedly connected with the receiving plates.

[0012] Preferably, the hot straightening machine is provided with three cooling assemblies, each of the three cooling assemblies comprises: a mounting frame one, a round rod two, an electric motor four, a transfer plate one, a fan, a circular gear two, a horizontal rod, a rack two, a mounting frame two, a round rod three, a circular gear three, a transfer plate two, a rack three, a suction cover and a corrugated pipe, the mounting frame one is fixedly installed on the hot straightening machine, the round rod two is rotationally installed on the mounting frame one, the electric motor four is fixedly installed on one side of the mounting frame one, the output shaft of the electric motor four is fixedly connected with one end of the round rod two, the transfer plate one is fixedly installed on the round rod two, the fan is fixedly installed on one side of the transfer plate one, the circular gear two is fixedly sleeved on the round rod two, the horizontal rod is slidingly installed on one side of the mounting frame one, the rack two is fixedly installed on the top of the horizontal rod, the rack two is engaged with the circular gear two, the mounting frame two is fixedly installed on the hot straightening machine, the round rod three is rotationally installed on the mounting frame two, the circular gear three is fixedly sleeved on the round rod three, the transfer plate two is fixedly installed on the round rod three, the rack three is fixedly installed on the bottom of the horizontal rod, the rack three is engaged with the circular gear three, the suction cover is fixedly installed on the transfer plate two, the corrugated pipe is fixedly installed on one side of the suction cover, the hot straightening machine is provided with a long pipe, and the bottom ends of the three corrugated pipes are fixedly connected with the long pipe, one side of the hot straightening machine is provided with a water storage tank, the top of the water storage tank is provided with an air suction pump, the air inlet of the air suction pump is fixedly connected with one end of the long pipe, the air outlet of the air suction pump is fixedly installed with a conveying pipe, and the bottom end of the conveying pipe extends into the water storage tank.

[0013] Preferably, the three transfer plates one are all provided with through holes, the three through holes are respectively matched with the three fans, and the three transfer plates one are all fixedly installed with support seats on one side.

[0014] Preferably, in the three cooling assemblies, the sides of the mounting frame one and the mounting frame two are all fixedly installed with extension rods, and two extension rods are slidingly installed in two horizontal holes in the horizontal rod.

[0015] Preferably, the hot straightening machine is provided with two U-shaped clamps, the two U-shaped clamps are fixedly connected with the long pipe, one side of the water storage tank is fixedly installed with a drain pipe, and the drain pipe is fixedly installed with a valve.

[0016] Compared with the related art, the drill collar hot straightening machine has the following beneficial effects:

[0017] This invention straightens the drill collar simultaneously with a hydraulic pressure head, while also assisting in the straightening of other parts of the drill collar with the cooperation of four hydraulic cylinders and four sets of auxiliary clamping components. The main and auxiliary straightening processes occur concurrently, achieving multi-point synchronous straightening of the bent parts of the drill collar, significantly shortening the straightening cycle and avoiding the time delays of traditional single-point pressure application. The dual-mode collaborative straightening doubles efficiency. Four electric motors drive four circular blocks to rotate, allowing the four clamping blocks to alternate working positions, preventing continuous wear on a single clamping block. Among the four protective components, the arc-shaped plates automatically change position through the linkage control of four electric motors, dispersing high-temperature contact points, reducing the risk of arc-shaped plate cracks, and lowering replacement frequency. The protection provided by each arc-shaped plate prevents direct contact between the four connecting blocks and the drill collar, thus protecting the four connecting blocks. Timely replacement of the arc-shaped plates prevents cracks caused by high temperatures from affecting the drill collar. Attached Figure Description

[0018] Figure 1 A front view schematic diagram of the first embodiment of the drill collar thermal straightening machine provided by the present invention;

[0019] Figure 2 A side view of the first embodiment of the drill collar thermal straightening machine provided by the present invention;

[0020] Figure 3 A side sectional view of the hot straightening machine and the fixing frame in the first embodiment of the drill collar hot straightening machine provided by the present invention;

[0021] Figure 4 for Figure 3 An enlarged schematic diagram of the mounting bracket shown;

[0022] Figure 5 A side sectional view of the fixing frame and sliding plate shown in the first embodiment of the drill collar hot straightening machine provided by the present invention;

[0023] Figure 6 for Figure 5 An enlarged schematic diagram of the mounting bracket shown;

[0024] Figure 7 A side sectional view of the connecting block shown in the first embodiment of the drill collar hot straightening machine provided by the present invention;

[0025] Figure 8 for Figure 7 An enlarged schematic diagram of the connecting blocks shown;

[0026] Figure 9 for Figure 8 An enlarged schematic diagram of the mounting plate shown;

[0027] Figure 10The front view structural schematic diagram of the second embodiment of the drill collar hot straightening machine provided by the present application is shown in the figure.

[0028] Figure 11 The Figure 10 The enlarged schematic diagram of the mounting rack one and the mounting rack two is shown in the figure.

[0029] Figure 12 The rear view assembly schematic diagram of the mounting rack one and the mounting rack two in the second embodiment of the drill collar hot straightening machine provided by the present application is shown in the figure.

[0030] Figure 13 The oblique view assembly schematic diagram of the long strip tube and the water storage tank in the second embodiment of the drill collar hot straightening machine provided by the present application is shown in the figure.

[0031] In the figure: 1, hot straightening machine; 2, fixed rack; 3, sliding plate; 4, strip plate; 5, rack one; 6, fixed plate; 7, round rod one; 8, round gear one; 9, cam; 10, connecting rod; 11, connecting rack; 12, link rod; 13, hydraulic cylinder two; 14, adapter block; 15, articulated rod; 16, driven round block; 17, round block; 18, sliding block; 19, clamping block; 20, electric motor one; 21, connecting block; 22, insertion groove; 23, mounting plate; 24, round plate; 25, round connecting block; 26, electric motor two; 27, electric motor three; 28, bevel gear; 29, screw rod; 30, vertical rod; 31, receiving plate; 32, moving plate; 33, screw; 34, linkage block; 35, arc plate; 36, mounting rack one; 37, round rod two; 38, electric motor four; 39, transfer plate one; 40, fan; 41, round gear two; 42, transverse rod; 43, rack two; 44, mounting rack two; 45, round rod three; 46, round gear three; 47, transfer plate two; 48, rack three; 49, bellows; 50, suction cover; 51, long strip tube; 52, water storage tank; 53, air suction pump; 54, delivery pipe. DETAILED DESCRIPTION

[0032] The present application will be further described below in combination with the drawings and embodiments.

[0033] Please refer to Figures 1-9In the first embodiment of the present application, the drill collar hot straightening machine comprises a hot straightening machine 1, four auxiliary assemblies are arranged on the operating table of the hot straightening machine 1, the four auxiliary assemblies are linearly distributed at equal intervals, the four auxiliary assemblies can assist in clamping the drill collar and accelerate the straightening of the drill collar, and each of the four auxiliary assemblies comprises a fixing frame 2, two sliding plates 3, two strip plates 4, two rack bars 5, two fixed plates 6, a round rod 7, a circular gear 8, a cam 9, a connecting rod 10, a connecting frame 11, two connecting rods 12, a hydraulic cylinder 13, an adapter block 14 and a hinged rod 15, the fixing frame 2 is fixedly installed on the operating table of the hot straightening machine 1, the two sliding plates 3 are both slidingly installed on the fixing frame 2, the two sliding plates 3 are both L-shaped, the two strip plates 4 are both fixedly installed on the sides of the two sliding plates 3 close to each other, the two rack bars 5 are both fixedly installed on the sides of the two strip plates 4 close to each other, the two fixed plates 6 are both fixedly installed on the operating table of the hot straightening machine 1, the round rod 7 is rotatably installed on the two fixed plates 6, the circular gear 8 is fixedly sleeved on the round rod 7, the cam 9 is fixedly sleeved on the round rod 7, the connecting rod 10 is fixedly installed on one side of the cam 9, the connecting frame 11 is fixedly installed on the operating table of the hot straightening machine 1, the two connecting rods 12 are both rotatably installed on the connecting frame 11, the hydraulic cylinder 13 is fixedly installed between the two connecting rods 12, the adapter block 14 is fixedly installed on the output rod of the hydraulic cylinder 13, the hinged rod 15 is rotatably installed on the adapter block 14, one end of the hinged rod 15, away from the adapter block 14, is rotatably connected with the connecting rod 10, and the two sliding plates 3 are both provided with adjusting assemblies, and each of the two adjusting assemblies comprises a driven circular block 16, a circular block 17, four sliding blocks 18, four clamping blocks 19 and an electric motor 20, the driven circular block 16 is rotatably installed on the sliding plate 3, the circular block 17 is fixedly installed on the top of the driven circular block 16, an annular block is fixedly sleeved at the bottom end of the driven circular block 16, the annular block increases the stability of the driven circular block 16 on the sliding plate 3, the four sliding blocks 18 are all slidingly installed on the circular block 17, the four sliding blocks 18 are arranged in an annular array, the four clamping blocks 19 are all fixedly installed on the four sliding blocks 18, and the electric motor 20 is fixedly installed on the top inner wall of the sliding plate 3.

[0034] In order to protect the four connecting blocks 21, avoid the connecting blocks 21 from being in contact with the drill collar at high temperature for a long time, in the mode, four protection assemblies are arranged on the hot straightening machine 1, the four connecting blocks 21 in the four protection assemblies are connected with the pressure head and the three supporting frames on the hot straightening machine 1 respectively, the pressure head is connected with the piston rod of the hydraulic cylinder one on the hot straightening machine 1, and is used for exerting pressure on the drill collar to straighten the drill collar, the three supporting frames support the drill collar, and the four protection assemblies all include the connecting block 21, the embedded groove 22, the mounting plate 23, the circular plate 24, the circular connecting block 25, the second electric motor 26, the third electric motor 27, the two conical gears 28, the screw rod 29, the two vertical rods 30, the bearing plate 31, the moving plate 32, the four screws 33, the four linkage blocks 34 and the four arc-shaped plates 35, the connecting block 21 is fixedly installed on the operating table of the hot straightening machine 1, the embedded groove 22 is arranged on the connecting block 21, the mounting plate 23 is fixedly installed on one side of the connecting block 21, the circular plate 24 is rotatably installed on the mounting plate 23, the circular connecting block 25 is fixedly installed on one side of the circular plate 24, the second electric motor 26 is fixedly installed on the inner wall of the circular connecting block 25, the third electric motor 27 is fixedly installed on one side of the mounting plate 23, the two conical gears 28 are fixedly installed on the output shafts of the circular connecting block 25 and the third electric motor 27 respectively, the two conical gears 28 are engaged, the screw rod 29 is rotatably installed on the circular plate 24, the two vertical rods 30 are fixedly installed on one side of the circular plate 24, the bearing plate 31 is fixedly installed on one end of the two vertical rods 30 away from the circular plate 24, the bearing plate 31 is rotatably connected with the screw rod 29, the moving plate 32 is threadedly installed on the screw rod 29, the four screws 33 are slidably installed on the moving plate 32, the four screws 33 are threadedly sleeved with the nuts, the four nuts are in contact with one side of the moving plate 32, the four linkage blocks 34 are slidably installed on the four screws 33 respectively, the four arc-shaped plates 35 are fixedly installed on the four linkage blocks 34 respectively, the four arc-shaped plates 35 are matched with the embedded groove 22, the four arc-shaped plates 35 are installed in the embedded groove 22 in turn, and the connecting block 21 can be better protected, the service life of the connecting block 21 is prolonged, and the arc-shaped plates 35 need not be frequently replaced.

[0035] In order to ensure the smoothness of the movement of the eight sliding plates 3 and the eight circular blocks 17 and reduce wear, in the four auxiliary assemblies, the bottoms of the eight sliding plates 3 are embedded with a plurality of rolling beads one, and the bottoms of the eight circular blocks 17 are embedded with a plurality of rolling beads two, and the plurality of rolling beads two are in contact with the tops of the eight sliding plates 3 respectively.

[0036] In order to facilitate the replacement of the clamping block 19, and at the same time ensure the stability of the clamping block 19 on the circular block 17, in the mode, four auxiliary assemblies, any one of the circular block 17 is provided with four installation grooves, and the corresponding four sliding blocks 18 are slidably installed in the corresponding installation grooves, and the two sides of the four installation grooves are provided with side grooves, and the two sides of the four sliding blocks 18 are fixedly installed with side blocks, and the eight side blocks are slidably installed in the corresponding side grooves.

[0037] In order to isolate and protect the screw rod 29, prevent foreign matters from being clamped into the thread groove on the screw rod 29, in the mode, in the four protection assemblies, the bottom of the four moving plates 32 is fixedly installed with a rubber hose, and the other end of the rubber hose is fixedly connected with the receiving plate 31.

[0038] The working principle of the drill collar heat straightening machine provided by the present application is as follows:

[0039] In the initial state, in the four auxiliary assemblies, every two sliding plates 3 are away from each other, the hydraulic rods of the hydraulic cylinders two 13 are retracted, the moving plates 32 in the four protection assemblies are kept close to the installation plates 23, and the arc-shaped plates 35 are installed in each insertion groove 22.

[0040] When the heat straightening machine 1 straightens the drill collar, the drill collar treated by high temperature rotates under the drive of the rotating roller, the hydraulic cylinder one on the heat straightening machine 1 drives the connecting block 21 connected thereto to move downward, in the process of moving downward of the connecting block 21, the drill collar stops rotating, the connecting block 21 presses the drill collar downward through an arc-shaped plate 35, so as to forcibly straighten the curved part of the drill collar, at the same time of driving of the hydraulic cylinder one, the four hydraulic cylinders two 13 are started, the output rods of the hydraulic cylinders two 13 output outward and push the cam 9 to rotate in the opposite direction of the position of the hydraulic cylinders two 13 with the circular rod one 7 as the center, the circular rod one 7 drives the circular gear one 8, and drives the two strip-shaped plates 4 and the two sliding plates 3 to be close to each other through the two racks one 5, the two sliding plates 3 drive the corresponding two clamping blocks 19 to be close to the middle drill collar, and the two clamping blocks 19 form clamping from both sides to the drill collar, so as to straighten the remaining positions of the drill collar, and the two straightening operations are performed at the same time, which greatly improves the straightening efficiency, meanwhile, the subsequent driving of the hydraulic cylinder one and the following straightening operation are not affected, and the work amount of the hydraulic cylinder one is saved, after the pressing of the drill collar is completed, the output rod of the hydraulic cylinder one retracts inward and drives the connecting block 21 connected thereto to move upward, at the same time, the output rods of the four hydraulic cylinders two 13 also retract inward and drive the clamping blocks 19 to gradually move away from the drill collar and recover to the initial position, so as to facilitate the next straightening operation.

[0041] After a period of use, the output rods of the four hydraulic cylinders are retracted, each clamp block is away from the drill collar, and the workbench is not placed with the drill collar. The plurality of electric motors are started, the electric motors drive the circular blocks through the corresponding driven circular blocks, the positions of the four clamp blocks on the circular blocks are adjusted, the clamp blocks on one side are rotated to face the drill collar, so as to be ready for the next round of clamping and straightening of the drill collar, so as to avoid that a clamp block is used for a long time alone, facilitate timely replacement of the damaged clamp block, and avoid that the crack on the clamp block affects the drill collar. Similarly, the arc-shaped plates on each connecting block need to be replaced. When operating, the connecting block installed on the hydraulic cylinder is in a lifted state, the four electric motors are started, the output shaft of the electric motor drives the screw to rotate, the moving plate moves on the screw and drives the corresponding four arc-shaped plates to gradually move away from the mounting plate, the moving plate moves to the predetermined position, the four electric motors are temporarily closed, and then the electric motor is started again. The electric motor drives the circular connecting block to rotate through the cooperation of the two bevel gears, the positions of the four arc-shaped plates are adjusted, the arc-shaped plates on one side are rotated to be aligned with the insertion slot on one side of the insertion slot, then the four electric motors are automatically closed, the four electric motors are started again to drive the four screws to rotate in the opposite direction, the corresponding four arc-shaped plates are moved to the initial height again, the corresponding arc-shaped plates are clamped into the insertion slot on the connecting block, the replacement of the arc-shaped plates is completed, and the arc-shaped plates are also replaced to avoid that the arc-shaped plates are too high in temperature and generate cracks or sawdust, protect the shape of the drill collar, prevent the drill collar from being pressed when being straightened due to the cracks or sawdust, and reduce the damage rate of the drill collar.

[0042] Compared with the related art, the drill collar heat straightening machine has the following beneficial effects:

[0043] The present application is characterized in that the hydraulic pressure head is used to straighten the drill collar, and the four hydraulic cylinders 13 and the four auxiliary clamping assemblies are used to assist in straightening the rest of the drill collar. The main straightening and the auxiliary straightening are performed simultaneously, the multi-point synchronous straightening of the curved part of the drill collar is realized, the straightening period is greatly shortened, the process delay of the traditional single-point pressure is avoided, the double-mode cooperative straightening is realized, the efficiency is doubled, the four circular blocks 17 are driven to rotate by the four electric motors 20, the four clamping blocks 19 are rotated to work in different positions, the single clamping block 19 is prevented from being continuously stressed and worn, the four electric motors 26 and the four electric motors 27 are used to control the automatic position exchange of the arc-shaped plates 35, the high-temperature contact points are dispersed, the crack risk of the arc-shaped plates 35 is reduced, the replacement frequency is reduced, the four connecting blocks 21 are prevented from directly contacting the drill collar under the protection of the arc-shaped plates 35, the four connecting blocks 21 are protected, the arc-shaped plates 35 are timely replaced, and the influence of the cracks of the arc-shaped plates 35 on the drill collar caused by the high temperature is avoided.

[0044] Second embodiment:

[0045] Based on the drill collar heat straightening machine provided in the first embodiment of the present application, the second embodiment of the present application provides another drill collar heat straightening machine. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the separate implementation of the first embodiment.

[0046] The second embodiment of the present application will be further described in combination with the drawings and the embodiments.

[0047] Please refer to Figures 10-13, the heat straightening machine 1 is provided with three cooling assemblies, the three cooling assemblies all include: a mounting frame one 36, a round rod two 37, an electric motor four 38, a transfer plate one 39, a fan 40, a circular gear two 41, a transverse rod 42, a rack two 43, a mounting frame two 44, a round rod three 45, a circular gear three 46, a transfer plate two 47, a rack three 48, a suction cover 50 and a corrugated pipe 49, the mounting frame one 36 is fixedly installed on the workbench of the heat straightening machine 1, the round rod two 37 is rotatably installed on the mounting frame one 36, the electric motor four 38 is fixedly installed on one side of the mounting frame one 36, the output shaft of the electric motor four 38 is fixedly connected with one end of the round rod two 37, the transfer plate one 39 is fixedly installed on the round rod two 37, the fan 40 is fixedly installed on one side of the transfer plate one 39, the circular gear two 41 is fixedly sleeved on the round rod two 37, the transverse rod 42 is slidably installed on one side of the mounting frame one 36, the rack two 43 is fixedly installed on the top of the transverse rod 42, the rack two 43 is engaged with the circular gear two 41, the mounting frame two 44 is fixedly installed on the workbench of the heat straightening machine 1, the round rod three 45 is rotatably installed on the mounting frame two 44, the circular gear three 46 is fixedly sleeved on the round rod three 45, the transfer plate two 47 is fixedly installed on the round rod three 45, the rack three 48 is fixedly installed on the bottom of the transverse rod 42, the rack three 48 is engaged with the circular gear three 46, the suction cover 50 is fixedly installed on the transfer plate two 47, the corrugated pipe 49 is fixedly installed on one side of the suction cover 50, the heat straightening machine 1 is provided with a long strip pipe 51, one end of the long strip pipe 51 away from the air suction pump 53 is sealed, the bottom ends of the three corrugated pipes 49 are fixedly connected with the long strip pipe 51, one side of the heat straightening machine 1 is provided with a water storage tank 52, the same cross beam is fixedly installed between the two side inner walls of the water storage tank 52, the top of the cross beam is fixedly installed with the air suction pump 53, the air inlet of the air suction pump 53 is fixedly connected with one end of the long strip pipe 51, the air outlet of the air suction pump 53 is fixedly installed with the conveying pipe 54, the bottom end of the conveying pipe 54 extends into the water storage tank 52, and the conveying pipe 54 is L-shaped.

[0048] In order to ensure the stability of the installation of the three fans 40, in the mode, the three transfer plates one 39 are all provided with through holes, the through holes are used for ventilation to ensure that the gas is blown to the corresponding connecting blocks 21, the three through holes are respectively matched with the three fans 40, and the three transfer plates one 39 are all fixedly installed with support seats on one side, and the three support seats are respectively fixedly connected with the bases of the three fans 40.

[0049] In order to support the transverse rod 42 and limit the movement range of the transverse rod 42, in the mode, one side of any one of the mounting frame one 36 and the mounting frame two 44 of the three cooling assemblies is fixedly installed with an extension rod, two transverse holes are formed in the transverse rod 42, and the two extension rods are slidably installed in the two transverse holes.

[0050] In order to ensure the stability of the long tube 51 position, convenient sewage in the water storage tank 52 is discharged, in the mode, the heat straightening machine 1 is provided with two U-shaped clamps, the two U-shaped clamps are fixedly connected with the long tube 51, the water storage tank 52 is fixedly installed with a drain pipe on one side, and the drain pipe is fixedly installed with a valve.

[0051] In the embodiment

[0052] In the use process of the heat straightening machine 1, when the drill collar is removed from the heat straightening machine 1 after being straightened, a proper amount of water is first injected into the water storage tank 52, so that the bottom end of the conveying pipe 54 is above the liquid level, and then the three electric motors four 38 are started, the output shaft of the electric motor four 38 drives the fixed circular rod two 37 to rotate counterclockwise, the circular rod two 37 overturns the transfer plate one 39, the fan 40 on the side of the mounting frame one 36 gradually rotates to the upper side, the circular gear two 41 is driven by the circular rod two 37, the horizontal rod 42 is driven to slide to the right through the gear rack two 43, the horizontal rod 42 drives the circular rod three 45 to rotate clockwise through the cooperation of the gear rack three 48 and the circular gear three 46, the transfer plate two 47 drives the suction cover 50 to gradually stand up, the suction cover 50 and the fan 40 are located on the two sides of the corresponding connecting blocks 21 respectively, then the three fans 40 and the air suction pump 53 are started, the three fans 40 blow air towards the connecting blocks 21 to heat them, the heat dissipated from the three connecting blocks 21 and the sawdust generated due to high temperature or scratching are sucked into the water storage tank 52 through the three suction covers 50, and are discharged into the water storage tank 52 to mix with the water in the water storage tank 52, so that the heat dissipation of the three connecting blocks 21 is accelerated, and part of the sawdust on the workbench of the heat straightening machine 1 is collected, so that the subsequent adhesion to the drill collar is prevented, after a while of heat dissipation and collection, the air suction pump 53 is closed and the three electric motors four 38 are restarted, the output shaft of the three electric motors four 38 rotates in the opposite direction, so that the three fans 40 and the three suction covers 50 are laid down again, so as to avoid hindering the drill collar and facilitate the next round of straightening.

[0053] It should be noted that the device structure and the drawings of the present application mainly describe the principle of the present application, and the setting of the power mechanism, the power supply system and the control system of the device is not completely described in the technical principle of the design principle, and the specific power mechanism, power supply system and control system can be clearly known by the technical personnel in the field under the premise of understanding the principle of the above application.

[0054] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation obtained by using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A drill collar hot straightening machine, comprising a hot straightening machine, characterized in that, The thermal straightening machine is equipped with four auxiliary components, each including: a fixed frame, two sliding plates, two strip plates, two racks, two fixed plates, a round rod, a circular gear, a cam, a connecting rod, a connecting frame, two connecting rods, a hydraulic cylinder, a transition block, and a hinge rod. The fixed frame is fixedly mounted on the thermal straightening machine. The two sliding plates are slidably mounted on the fixed frame. The two strip plates are respectively fixedly mounted on the sides of the two sliding plates that are close to each other. The two racks are respectively fixedly mounted on the sides of the two strip plates that are close to each other. The two fixed plates are fixedly mounted on the thermal straightening machine. The round rod is rotatably mounted on the two fixed plates. The circular gear is fixedly sleeved on the round rod. The cam is fixedly sleeved on the round rod. The connecting rod is fixedly mounted on the cam. On the side, the connecting frame is fixedly installed on the hot straightening machine, and the two connecting rods are rotatably installed on the connecting frame. The second hydraulic cylinder is fixedly installed between the two connecting rods. The adapter block is fixedly installed on the output rod of the second hydraulic cylinder. The hinge rod is rotatably installed on the adapter block, and one end of the hinge rod is rotatably connected to the connecting rod. Adjustment components are provided on both sliding plates. Each adjustment component includes: a driven circular block, a circular block, four sliders, four clamping blocks, and an electric motor. The driven circular block is rotatably installed on the sliding plate, and the circular block is fixedly installed on the top of the driven circular block. The four sliders are slidably installed on the circular block, and the four clamping blocks are respectively fixedly installed on the four sliders. The electric motor is installed on the sliding plate, and the output shaft of the electric motor is fixedly connected to the bottom of the driven circular block. The thermal straightening machine is equipped with four protective components, each including: a connecting block, an insertion slot, a mounting plate, a circular plate, a circular connecting block, a second electric motor, a third electric motor, two bevel gears, a screw, two vertical rods, a receiving plate, a moving plate, four screws, four linkage blocks, and four arc-shaped plates. The connecting block is fixedly mounted on the thermal straightening machine. The insertion slot is formed on the connecting block. The mounting plate is fixedly mounted on the connecting block. The circular plate is rotatably mounted on the mounting plate. The circular connecting block is fixedly mounted on one side of the circular plate. The second electric motor is fixedly mounted on the inner wall of the circular connecting block. The third electric motor is fixedly mounted on... Mounted on the mounting plate, the two bevel gears are respectively fixedly mounted on the circular connecting block and the electric motor. The two bevel gears mesh with each other. The screw is rotatably mounted on the circular plate. The two vertical rods are fixedly mounted on one side of the circular plate. The receiving plate is fixedly mounted on the end of the two vertical rods away from the circular plate. The receiving plate is rotatably connected to the screw. The moving plate is threaded onto the screw. The four screws are slidably mounted on the moving plate. The four linkage blocks are slidably mounted on the four screws. The four arc-shaped plates are fixedly mounted on the four linkage blocks. The four arc-shaped plates are all adapted to the insertion slot.

2. The drill collar hot straightening machine according to claim 1, characterized in that, In the four auxiliary components, the bottom of each of the eight sliding plates is inlaid with a plurality of rolling beads I, and the bottom of each of the eight circular blocks is inlaid with a plurality of rolling beads II, and the plurality of rolling beads II respectively contact the top of the eight sliding plates.

3. The drill collar hot straightening machine according to claim 1, characterized in that, In the four auxiliary components, each of the circular blocks has four mounting slots, and the four corresponding sliders are slidably installed in the corresponding mounting slots. Side slots are provided on both sides of the four mounting slots, and side blocks are fixedly installed on both sides of the four sliders. The eight side blocks are slidably installed in the corresponding side slots.

4. The drill collar hot straightening machine according to claim 1, characterized in that, Each of the screws is threaded with a nut, and each of the nuts contacts the corresponding movable plate.

5. The drill collar hot straightening machine according to claim 1, characterized in that, In the four protective components, a rubber hose is fixedly installed at the bottom of each of the four movable plates, and the other end of the rubber hose is fixedly connected to the receiving plate.

6. The drill collar hot straightening machine according to claim 1, characterized in that, The hot straightening machine is equipped with three cooling components, each comprising: a mounting frame 1, a round rod 2, an electric motor 4, a transfer plate 1, a fan, a circular gear 2, a transverse rod, a rack 2, a mounting frame 2, a round rod 3, a circular gear 3, a transfer plate 2, a rack 3, a suction hood, and a bellows. The mounting frame 1 is fixedly mounted on the hot straightening machine. The round rod 2 is rotatably mounted on the mounting frame 1. The electric motor 4 is fixedly mounted on one side of the mounting frame 1, and its output shaft is fixedly connected to one end of the round rod 2. The transfer plate 1 is fixedly mounted on the round rod 2. The fan is fixedly mounted on one side of the transfer plate 1. The circular gear 2 is fixedly sleeved on the round rod 2. The transverse rod is slidably mounted on one side of the mounting frame 1. The rack 2 is fixedly mounted on the top of the transverse rod. The second rack meshes with the second circular gear. The second mounting bracket is fixedly mounted on the hot straightening machine. The third circular rod is rotatably mounted on the second mounting bracket. The third circular gear is fixedly sleeved on the third circular rod. The second transfer plate is fixedly mounted on the third circular rod. The third rack is fixedly mounted at the bottom of the horizontal rod and meshes with the third circular gear. The suction hood is fixedly mounted on the second transfer plate. The corrugated pipe is fixedly mounted on one side of the suction hood. The hot straightening machine is equipped with a long strip pipe. The bottom ends of the three corrugated pipes are all fixedly connected to the long strip pipe. A water storage tank is provided on one side of the hot straightening machine. An air pump is provided on the top of the water storage tank. The air inlet of the air pump is fixedly connected to one end of the long strip pipe. A delivery pipe is fixedly installed on the air outlet of the air pump. The bottom end of the delivery pipe extends into the water storage tank.

7. The drill collar hot straightening machine according to claim 6, characterized in that, Each of the three transfer plates has a through hole, which is adapted to each of the three fans. Each of the three transfer plates has a support fixedly installed on one side, and the three support seats are fixedly connected to the bases of the three fans.

8. The drill collar hot straightening machine according to claim 6, characterized in that, In the three cooling components, an extension rod is fixedly installed on one side of any one of the mounting brackets 1 and 2. Two transverse holes are opened on the transverse rod, and the two extension rods are slidably installed in the two transverse holes respectively.

9. The drill collar hot straightening machine according to claim 6, characterized in that, The hot straightening machine is equipped with two U-shaped clamps, both of which are fixedly connected to a long strip pipe. A drain pipe is fixedly installed on one side of the water storage tank, and a valve is fixedly installed on the drain pipe.

Citation Information

Patent Citations

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