CN115788328A

CN115788328A - Oil well maintenance power tongs

Info

Publication number: CN115788328A
Application number: CN202211597108.4A
Authority: CN
Inventors: 张笑洋
Original assignee: Chengde Petroleum College
Current assignee: Chengde Petroleum College
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-03-14

Abstract

The invention relates to the technical field of oil well maintenance, in particular to an oil well maintenance power tong which comprises a connecting plate and a power tong body, wherein an intelligent push rod is fixedly connected to the top surface of the connecting plate, the power tong body is fixedly connected to the movable end of the intelligent push rod, a driving mechanism is arranged below the power tong body, a clamping mechanism is arranged in the driving mechanism, a plurality of auxiliary mechanisms are arranged on the clamping mechanism, and an inlet and an outlet are formed in the center of the top surface of the connecting plate. According to the invention, the pipe fitting is lifted to a plurality of auxiliary mechanisms, then the driving mechanism is started to drive the clamping mechanism to limit the pipe fitting in an oil well, meanwhile, the driving mechanism can drive the auxiliary mechanisms to limit the lifted pipe fitting, so that the pipe fitting is placed downwards, the intelligent push rod is started to control the position of the power tong body, and the power tong body is moved to the butt joint of the two pipe fittings to be screwed, so that a user can conveniently connect a plurality of pipe fittings.

Description

Oil well maintenance power tongs

Technical Field

The invention relates to the technical field of oil well maintenance, in particular to a power tong for oil well maintenance.

Background

Because the largest and most burdensome workload of operating workers in the well repairing process is to load and unload the screw threads of the oil pipe and the drilling tool, pipe tongs or chain tongs have been used in the past, which not only has high labor intensity but also has danger, while the existing oil well maintenance power tongs can be controlled by a hydraulic motor, are mechanical screw thread loading and unloading tools operated by the well repairing power, can greatly reduce the labor intensity of the well repairing workers, avoid or reduce the occurrence of injury accidents, and meanwhile, the hydraulic power tongs strengthen the torsion of the screw threads of the oil pipe and the drilling tool, reduce the occurrence of the tripping accidents of the oil pipe and the drilling tool, and are oil well maintenance power tongs.

The inside of the oil well maintenance power tong rotates through the opening gear of the tong head to generate high and low rotating speeds so as to drive a pipe tool (drilling tool) to rotate, and when the opening gear rotates, the plate frame does not rotate under the braking action of the braking hammer, so that the opening gear and the jaw plate frame move relatively. Thus, the two rollers of the jaw plate climb on the slope plate and force the jaw on the crotch plate to move towards the center of the pipe (drilling tool) until the pipe (drilling tool) is gripped, and then the jaw and the opening gear drive the pipe (drilling tool) to rotate together;

the conventional oil well maintenance power tongs are generally hoisted, a drilling tool and a pipe fitting for maintenance basically enter an oil well mouth through hoisting, and then are sent into a well, the drilling tool and the pipe fitting are screwed, basically, a user manually holds the pipe fitting to align, then the power tongs are used for screwing, and then the pipe fitting is controlled to enter the well.

Disclosure of Invention

In order to overcome the technical problems, the invention aims to provide the power tongs for oil well maintenance, the pipe fittings are hoisted among a plurality of auxiliary mechanisms, then the driving mechanism is started to drive the clamping mechanism to limit the pipe fittings in an oil well, meanwhile, the driving mechanism can drive the auxiliary mechanisms to limit the hoisted pipe fittings, the pipe fittings are lowered, the intelligent push rod is started to control the position of the power tongs body, the power tongs body is moved to the butt joint of the two pipe fittings to be screwed, and therefore, a user can conveniently connect the pipe fittings.

The purpose of the invention can be realized by the following technical scheme:

an oil well maintenance power tong comprises a connecting plate and a power tong body, wherein an intelligent push rod is fixedly connected to the top surface of the connecting plate, the power tong body is fixedly connected to the movable end of the intelligent push rod, a driving mechanism is arranged below the power tong body, a clamping mechanism is arranged in the driving mechanism, a plurality of auxiliary mechanisms are arranged on the clamping mechanism, and an inlet and an outlet are formed in the center of the top surface of the connecting plate;

the clamping mechanism comprises a plurality of fixed plates which are uniformly arranged around an inlet and an outlet, the bottom surfaces of the fixed plates are fixedly connected with the top surface of a connecting plate, the fixed plates are provided with a plurality of sliding holes on one side, the sliding holes are connected with the sliding plates inside the sliding holes in a sliding mode, the sliding plates are arranged in a sliding mode, one ends of the sliding plates are provided with penetrating grooves, limiting ropes are arranged above the sliding plates, one ends of the limiting ropes are provided with penetrating ports, the other ends of the limiting ropes sequentially penetrate through the penetrating grooves and the penetrating ports, fixing rods are fixedly connected to the top surface of the connecting plate, the outer side walls of the fixing rods are rotatably connected with winding drums, the other ends of the limiting ropes are fixedly wound on the inner side walls of the winding drums, the connecting plates are placed at oil well openings, the inlet and the outlet of the connecting plates are aligned with the connecting plates, bolts are used for drilling the connecting plates with the oil wells, when the power tongs are required to rotate the pipe fittings, the driving mechanism is used for enabling the sliding plates to be close to each other, the end portions of the pipe fittings in the oil wells are simultaneously supported and are fixed when the sliding plates are close to each other sliding plates, the pipe fittings, the rotating drum is rotated, one end of the limiting ropes is controlled to be convenient to move to push rods of the pipe fittings, and to control the pipe fittings.

Further, the method comprises the following steps: the utility model discloses a take-up reel, including a take-up reel, a fixed rod, a plurality of slide one end, spacing rope, the snare that runs through mouthful formation is relaxed, and the fixed rod lateral wall is fixed connection, the snare that runs through mouthful formation is passed to spacing rope, the spacing rope is passed to the side of take-up reel, the snare that runs through mouthful formation is fixed connection, the other end, the fixed rod lateral wall is fixed connection, when making a plurality of slide one ends be close to each other through volute spiral spring, then volute spiral spring can drive the automatic rotation of take-up reel because of self elasticity with spacing rope one end winding on the take-up reel, it reduces to make spacing rope pass the snare that runs through mouthful formation, it is spacing to receive the pipe fitting tip that the snare inside that runs through mouthful formation was passed to spacing rope.

Further, the method comprises the following steps: it is a plurality of the equal fixedly connected with of slide one end is supported the head, makes a plurality ofly support the head and contradict with the pipe fitting spacing, and is more firm that can the centre gripping to some thinner pipe fittings.

Further, the method comprises the following steps: the driving mechanism comprises a barrel body, a plurality of sliding plates are all positioned in the barrel body, the top surface of the connecting plate is uniformly and fixedly connected with a plurality of arc plates, the outer side walls of the arc plates are all contacted with the inner side wall of the barrel body, the bottom end and the top end of the outer side wall of the barrel body are all fixedly sleeved with annular plates, the outer side wall of the barrel body is positioned between the two annular plates and is slidably sleeved with a lantern ring, the bottom surface of the connecting plate is provided with two circular holes, electric push rods are all fixedly connected in the two circular holes, the movable ends of the two electric push rods are all fixedly connected with the bottom surfaces of the lantern rings, one side of each fixed plate is positioned below the adjacent sliding hole and is rotatably connected with a rotating plate, the other ends of the sliding plates are all fixedly connected with connecting ropes, one end of each connecting rope is fixedly connected with one side of the adjacent rotating plate, and the other side of each rotating plate is attached to the top surface of the barrel body, the rotating plates correspond to the auxiliary mechanisms one by one, the auxiliary mechanisms are positioned at one end of the opposite rotating plate, the two electric push rods are started to push the lantern rings to move upwards so that the lantern rings move upwards to abut against the annular plate positioned at the top of the barrel body to lift the barrel body upwards, the barrel body jacks the rotating plates to move, the rotating plates rotate to abut against the adjacent sliding plates, one ends of the sliding plates are close to each other to clamp the pipe fitting, when the electric push rods reset, the lantern rings support the annular plate at the top of the barrel body to move downwards so that the barrel body synchronously moves downwards along with the lantern rings under the self-weight, then the rotating plates automatically reset to the top of the barrel body under the self-weight, when the rotating plates reset, the adjacent sliding plates are pulled to reset through the connecting ropes, the connecting ropes can be elastic ropes, when the rotating plates rotate, the contact points of the rotating plates are different from those of the adjacent sliding plates, when the sliding plates move, the connecting ropes are stretched, when the rotating plate resets and the sliding plate is pulled to reset, the connecting rope contracts and the sliding plate is pulled to reset.

Further, the method comprises the following steps: the other end of the sliding plate is an arc-shaped surface, so that when the rotating plate is abutted against the sliding plate to move, the sliding plate can slide on the rotating plate more smoothly.

Further, the method comprises the following steps: a plurality of internal thread section of thick bamboo of barrel inside wall fixedly connected with, and a plurality of internal thread section of thick bamboo and a plurality of commentaries on classics board one-to-one, and a plurality of internal thread section of thick bamboo are all closed soon and are closed the pole soon, and a plurality of close the pole soon all contradict with corresponding commentaries on classics board opposite side activity, through closing the position of adjusting the pole soon, alright with in the top commentaries on classics board makes commentaries on classics board rotating part back closed soon the pole tip conflict on the barrel, thereby make the commentaries on classics board closed soon the pole conflict further rotate, and adjustable close the pole soon, make the slide to suitable distance, thereby make the slide displacement can adjust, and make a plurality of complementary unit rotated by adjacent commentaries on classics board and drive and be close to each other.

Further, the method comprises the following steps: the auxiliary mechanism comprises a support plate, one end of the support plate is rotatably connected with one side of an adjacent rotating plate, one end of the support plate is provided with a torsional spring, one end of the torsional spring is fixedly connected with one side of the adjacent rotating plate, the other end of the torsional spring is fixedly connected with one end of the support plate, one end of the stay cord is fixedly connected with a stay cord, one end of the stay cord bypasses one end of the adjacent rotating plate and is fixedly connected with the top surface of the lantern ring, the other ends of the support plates on the auxiliary mechanism are fixedly connected with connecting cylinders, guide ropes are arranged above a plurality of auxiliary mechanisms, the top surface of the connecting plate is fixedly connected with a support rod, the outer side wall of the support rod is provided with a guide groove, the outer side wall of the support rod is slidably sleeved with a slide cylinder, the inner side wall of the slide cylinder is fixedly connected with a connecting strip embedded into the guide groove, the outer side wall of the slide cylinder is rotatably sleeved with a containing cylinder, and the inner side wall of the containing cylinder is provided with a torsional spring, one end of the torsion spring is fixedly connected with the inner side wall of the containing barrel, the other end of the torsion spring is fixedly connected with the outer side wall of the sliding barrel, one end of the guide rope is provided with a socket, the other end of the guide rope sequentially penetrates through the connecting barrels and the socket and is fixedly wound on the inner side wall of the containing barrel, the support plates on the auxiliary mechanisms are pulled and limited by the sleeves through the pull ropes in an initial state to enable the support plates to be parallel to the adjacent rotating plates, when the sleeves move upwards, the pull ropes loosen to enable the support plates to automatically rotate towards the direction of the adjacent fixing plates due to the reset elasticity of the adjacent torsion springs to form a bending state with the adjacent rotating plates, and when the rotating plates are abutted and rotated by the adjacent screwing rods, one ends of the rotating plates all move towards the inlet and outlet directions to enable one ends of the rotated support plates to mutually approach each other to clamp one end of a lifted pipe fitting and enable the guide rope to pass through the formed rope sleeve to loosen along with the mutual approach of the rotated support plates, then direction rope one end is driven and automatic rolling is on the containing cylinder because of inside torsion spring reset elasticity by the containing cylinder, make the noose on the direction rope constantly shrink because of constantly being close to of a plurality of extension board one end, carry on spacingly to the inside pipe fitting tip of direction rope noose, simultaneously transfer the pipe fitting through overhead hoist, whole process direction rope constantly contracts along with constantly transferring of pipe fitting until the noose of a plurality of extension boards and direction rope pastes the pipe fitting and pastes the pipe fitting, and the pipe fitting of guide handling aligns with the pipe fitting in the oil well, and lie in the inside of power tong body, make the power tong body close soon to two pipe fittings, longer at the pipe fitting, the handling in-process pipe fitting easily rocks along with the wind and produces great power, directly carry out centre gripping guide to the pipe fitting this moment, the pipe fitting rocks along with the wind and leads to the centre gripping dislocation or circumstances such as insecure, cause the pipe fitting to be difficult to align, the condition of dislocation, thereby improve the guide to the handling pipe fitting and the spacing effect of pipe fitting tip.

Further, the method comprises the following steps: it is a plurality of the breach has all been seted up to commentaries on classics board one end, and inside a plurality of stay cords all were located adjacent breach, utilized the breach to carry on spacingly to the stay cord, avoids the stay cord to break away from commentaries on classics board one end.

The method is further characterized in that: it is a plurality of the rectangular channel has all been seted up to commentaries on classics board one side, and rectangular channel one end rotates and is connected with the butt plate, butt plate one side contacts with the commentaries on classics board, rotate between the rectangular channel both ends and be connected with the screw rod, and the screw rod lateral wall closes soon and has cup jointed the limiting plate, the screw rod is located butt plate one side, and the limiting plate contacts with the butt plate, adjusts the position of limiting plate through rotating the screw rod, can make the limiting plate conflict butt plate inject the turned angle who butts the board, and the extension board rotates because of torsional spring reset elasticity and pastes until one side and butt plate subsides, thereby can rely on the turned angle who adjusts the butt plate to adjust the turned angle of extension board, thereby the accessible is adjusted the turned angle of extension board and is adjusted the length of closing the pole and is controlled the interval between a plurality of slides and a plurality of branch boards, thereby makes a plurality of slides and a plurality of extension board can inject the position of the pipe fitting of multiple specification.

The method is further characterized in that: a plurality of the arc outer arc surface of arc all seted up the notch, it is a plurality of the inside spring fixture block that all is provided with of notch, and a plurality of spring fixture block one end all offsets with the barrel inside wall, can make the barrel slide on a plurality of arcs obstructed through spring fixture block, only can remove through the lantern ring pulling, when spacing to the pipe fitting, because the pipe fitting has a certain diameter, make the rotary rod conflict can not push up the runner to complete vertical state when the runner, and make the runner still be in the tilt state after the pole conflict is closed soon, electric putter starts to promote the lantern ring and drives the barrel and shift up and make a plurality of extension boards and a plurality of slides accomplish spacing to the pipe fitting, and utilize the power tong body to close the back that finishes soon, when electric putter resets, the lantern ring can descend in advance, then a plurality of stay ropes stimulate make a plurality of extension boards and pipe fitting lateral wall to conflict and accomplish the rotation, but because a plurality of extension boards and pipe fitting lateral wall are difficult to conflict and reset, when making the lantern ring continue to move down, it pushes down to make a plurality of adjacent runner to drive a plurality of adjacent runner to push down and make a plurality of the barrel to make the rotary rod to move the barrel and to provide the barrel and to make the barrel move down and to make the barrel move and to make the barrel to accomplish the barrel to move and to make the barrel to move to form through the rope and to the barrel that the rope to make the barrel that the fence that the adjacent runner to move.

The invention has the beneficial effects that:

1. through with the pipe fitting handling between a plurality of complementary unit, then start actuating mechanism and drive fixture and carry on spacingly to the inside pipe fitting of oil well, actuating mechanism can drive a plurality of complementary unit simultaneously and carry on spacingly to the pipe fitting of handling, make the handling pipe fitting transfer the back, can align the junction of two pipe fittings automatically, start the position of intelligent push rod control power tong body, make the power tong body move the butt joint department of two pipe fittings and close soon, thereby make the pipe fitting can align the position automatically, thereby it is more convenient when carrying out the connection of multitube spare to be convenient for the user of service.

2. Starting the two electric push rods, enabling the two electric push rods to push the lantern rings to move upwards, enabling the auxiliary mechanisms to be started, enabling the lantern rings to move upwards to abut against the annular plate located at the top of the barrel body so as to lift the barrel body upwards, enabling the barrel body to push the rotating plates to rotate to abut against the adjacent sliding plates to slide, enabling one ends of the sliding plates to approach each other to clamp the pipe fittings, enabling one ends of the limiting ropes to be wound by the winding cylinder, enabling the rope sleeves formed by the limiting ropes to limit the pipe fittings, when the electric push rods reset, enabling the lantern rings to move downwards to reset the auxiliary mechanisms, then enabling the annular plate abutting against the bottom of the barrel body to drive the barrel body to move downwards, enabling the rotating plates to automatically rotate to the top of the barrel body due to dead weight to reset, enabling the rotating plates to drive the adjacent sliding plates to reset through the connecting ropes when the rotating plates reset, and enabling the rope sleeves formed by the sliding plates and the connecting ropes to limit the end portions of the pipe fittings inside the oil well;

3. when the two electric push rods start to move upwards, the pull ropes are loosened, so that the support plates automatically rotate towards the direction of the adjacent fixed plates and are attached to the adjacent resisting plates due to the reset elasticity of the adjacent torsion springs, then when the rotation plates are abutted to rotate by the adjacent screwing rods, one ends of the rotation plates all move towards the inlet and outlet directions, one ends of the support plates after rotation are close to each other, and along with the mutual close of one ends of the support plates after rotation, the guide ropes pass through rope sleeves formed by the insertion openings to be loosened, then one ends of the guide ropes are automatically wound on the storage barrel due to the driving of the reset elasticity of the torsion springs inside the storage barrel, so that the rope sleeves on the guide ropes continuously contract due to the continuous close of one ends of the support plates, meanwhile, the pipe fittings are placed down through the hoisting device, the guide ropes continuously contract along with the continuous placing down of the pipe fittings in the whole process until the support plates and the rope sleeves of the guide ropes attach the pipe fittings, the guided pipe fittings are aligned with the pipe fittings in an oil well and are located inside the power tongs body, so that the power tongs body is screwed to two pipe fittings, and accordingly, the guiding effect of the hoisting pipe fittings and the limiting effect of the end part of the pipe fittings is improved;

4. when spacing to the pipe fitting, because the pipe fitting has the certain diameter, make the soon close pole conflict can not will change the board top and move to complete vertical state when changeing the board, and make changeing the board and still be in the tilt state after being contradicted by the soon close pole, electric putter starts to promote the lantern ring and drives the barrel and shift up and make a plurality of extension boards and a plurality of slide accomplish spacingly to the pipe fitting, and utilize the power tong body to revolve and close the back that finishes, when electric putter resets, the lantern ring can descend in advance, then stimulate a plurality of stay cords and make a plurality of extension boards reset the rotation, nevertheless because a plurality of extension boards are contradicted with the pipe fitting lateral wall and are difficult to accomplish and reset, when making the lantern ring continue to move down, drive adjacent commentaries on classics board and push down through a plurality of extension boards of pulling stay cords and drive, make a plurality of extension boards with adjacent commentaries on classics close pole push down and break away from changeing the board, thereby make a plurality of commentaries on classics close pole drive barrel gliding part, make a plurality of rings form the rail that resets to the peripheral, make the barrel that the sleeve that makes a plurality of extension boards and lead to constitute forms the rail, then provide the pipe fitting and to provide the supplementary barrel that the pipe fitting moves down, and then drive the bottom that the barrel that the protection is located and move down, make the barrel that the supplementary under the barrel that moves.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view showing the positional relationship among the chucking mechanism, the driving mechanism, and the auxiliary mechanism in the present invention;

FIG. 3 is an exploded view of the clamping mechanism of the present invention;

FIG. 4 is a partial enlarged view of the invention at A;

FIG. 5 is an exploded view of the drive mechanism of the present invention;

FIG. 6 is a sectional view of the driving mechanism and the auxiliary mechanism in the initial state;

FIG. 7 is a sectional view of the position relationship between the driving mechanism and the auxiliary mechanism in the present invention;

FIG. 8 is a schematic view of the position relationship between the pivotal plate and the support plate of the present invention;

FIG. 9 is a schematic view of the structure of the auxiliary mechanism of the present invention;

FIG. 10 is an exploded view of the structure of the auxiliary mechanism according to the present invention;

FIG. 11 is a partial enlarged view of the invention at B;

FIG. 12 is a partial enlarged view of the present invention at C.

In the figure: 100. a connecting plate; 101. an inlet and an outlet; 102. a circular hole; 110. an intelligent push rod; 200. a drive mechanism; 210. an arc-shaped plate; 211. a spring clamping block; 220. a barrel; 221. an annular groove; 230. an annular plate; 240. a collar; 250. an electric push rod; 260. an internal threaded barrel; 261. screwing the rod; 300. a clamping mechanism; 310. a fixing plate; 311. a slide hole; 320. a slide plate; 321. a through groove; 322. abutting against the head; 323. connecting ropes; 330. a limiting rope; 331. a through opening; 340. winding the roll; 350. fixing the rod; 360. rotating the plate; 361. a rectangular groove; 362. a notch; 400. an auxiliary mechanism; 410. a support plate; 411. a connecting cylinder; 412. pulling a rope; 420. a guide rope; 421. a socket; 430. a strut; 431. a guide groove; 440. a slide cylinder; 441. a connecting strip; 442. a storage cylinder; 450. a screw; 460. a resisting plate; 451. a limiting plate; 500. the power tong body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-12, an oil well maintenance power tong includes a connecting plate 100 and a power tong body 500, wherein the top surface of the connecting plate 100 is fixedly connected with an intelligent push rod 110, the movable end of the intelligent push rod 110 is fixedly connected with the power tong body 500, a driving mechanism 200 is arranged below the power tong body 500, a clamping mechanism 300 is arranged inside the driving mechanism 200, a plurality of auxiliary mechanisms 400 are arranged on the clamping mechanism 300, and an inlet and an outlet 101 are arranged at the center of the top surface of the connecting plate 100;

the clamping mechanism 300 comprises a plurality of fixing plates 310 uniformly arranged around an inlet and an outlet 101, the bottom surfaces of the fixing plates 310 are fixedly connected with the top surface of a connecting plate 100, sliding holes 311 are formed in one sides of the fixing plates 310, sliding plates 320 are slidably connected inside the sliding holes 311, penetrating grooves 321 are formed in one ends of the sliding plates 320, limiting ropes 330 are arranged above the sliding plates 320, penetrating holes 331 are formed in one ends of the limiting ropes 330, the other ends of the limiting ropes 330 sequentially penetrate through the penetrating grooves 321 and the penetrating holes 331, fixing rods 350 are fixedly connected to the top surface of the connecting plate 100, outer side walls of the fixing rods 350 are rotatably connected with winding drums 340, the other ends of the limiting ropes 330 are fixedly wound on the inner side walls of the winding drums 340, the ends of pipe fittings in the oil well are abutted against the sliding plates 320 to fix the pipe fittings 101, then the inlet and outlet bolts are connected with the oil well, when the pipe fittings need to be rotated by using a power tong body 500, the sliding plates 320 are driven to enable the ends of the pipe fittings to be abutted against the limiting ropes 320 when the pipe fittings 500 are moved by rotating the sliding plates, and the pipe fittings are prevented from being moved by rotating the limiting ropes 330, and the sliding plates 320.

The inner side wall of the winding drum 340 is provided with a scroll spring, one end of the scroll spring is fixedly connected with the inner side wall of the winding drum 340, the other end of the scroll spring is fixedly connected with the outer side wall of the fixing rod 350, when one ends of the plurality of sliding plates 320 are close to each other through the scroll spring, the limiting rope 330 penetrates through the penetrating port 331 to form a snare which is loose, then the scroll spring can drive the winding drum 340 to automatically rotate due to self elasticity to wind one end of the limiting rope 330 on the winding drum 340, the limiting rope 330 penetrates through the snare formed by the penetrating port 331 to be reduced, and the limiting rope 330 is wound and limited by the end part of a pipe fitting inside the snare formed by the penetrating port 331.

The equal fixedly connected with of a plurality of slides 320 one end is supported first 322, makes a plurality of first 322 and pipe fitting of supporting contradict spacingly, can the more firm of centre gripping to some thinner pipe fittings.

The driving mechanism 200 comprises a cylinder 220, a plurality of sliding plates 320 are all positioned in the cylinder 220, a plurality of arc plates 210 are uniformly and fixedly connected to the top surface of the connecting plate 100, the outer side walls of the arc plates 210 are all contacted with the inner side wall of the cylinder 220, the bottom end and the top end of the outer side wall of the cylinder 220 are all fixedly sleeved with annular plates 230, a lantern ring 240 is slidably sleeved between the two annular plates 230 on the outer side wall of the cylinder 220, two circular holes 102 are formed in the bottom surface of the connecting plate 100, electric push rods 250 are all fixedly connected to the inner parts of the two circular holes 102, the movable ends of the two electric push rods 250 are all fixedly connected with the bottom surfaces of the lantern rings 240, a rotating plate 360 is rotatably connected below an adjacent sliding hole 311 on one side of a plurality of fixing plates 310, connecting ropes 323 are all fixedly connected to the other ends of the sliding plates 320, one end of each connecting rope 323 is fixedly connected to one side of an adjacent rotating plate 360, and the other side of each rotating plate 360 is attached to the top surface of the cylinder 220, the plurality of rotating plates 360 correspond to the plurality of auxiliary mechanisms 400 one by one, the plurality of auxiliary mechanisms 400 are all positioned at one end of the opposite rotating plate 360, the two electric push rods 250 are started to push the lantern ring 240 to move upwards, so that the lantern ring 240 moves upwards to abut against the annular plate 230 positioned at the top of the cylinder 220 to lift the cylinder 220 upwards, the cylinder 220 jacks the plurality of rotating plates 360, the plurality of rotating plates 360 rotate to abut against the adjacent sliding plates 320, so that one ends of the plurality of sliding plates 320 are close to each other to clamp the pipe fittings, when the electric push rods 250 are reset, the lantern ring 240 supports the annular plate 230 at the top of the cylinder 220 to move downwards, so that the cylinder 220 synchronously moves downwards along with the lantern ring 240 by virtue of self weight, then the plurality of rotating plates 360 automatically rotate to the top of the cylinder 220 for resetting due to self weight, when the plurality of rotating plates 360 rotate and reset, the adjacent sliding plates 320 are pulled to reset by the connecting rope 323, and the connecting rope 323 can be an elastic rope, since the contact point of the rotating plate 360 is different from that of the adjacent sliding plate 320 when rotating, the connecting rope 323 is stretched when the rotating plate 360 abuts against the sliding plate 320 to move, and when the rotating plate 360 resets and pulls the sliding plate 320 to reset, the connecting rope 323 is contracted and the pulling sliding plate 320 resets.

The other ends of the sliding plates 320 are arc-shaped surfaces, so that when the rotating plate 360 abuts against the sliding plates 320 to move, the sliding plates 320 slide on the rotating plates 360 more smoothly.

A plurality of internal thread section of thick bamboo 260 of barrel 220 inside wall fixedly connected with, and a plurality of internal thread section of thick bamboo 260 and a plurality of 360 one-to-ones of commentaries on classics board, a plurality of internal thread section of thick bamboo 260 are inside all closed soon and close pole 261, and a plurality of closed soon pole 261 all with corresponding 360 opposite side activities of commentaries on classics board conflict, adjust the position of closed soon pole 261 through closing soon, alright make 360 commentaries on classics board 360 make change 360 pivoted parts of board behind the closed soon pole 261 tip conflict on barrel 220, thereby make change 360 conflicting further rotations of pole 261 soon of board, and adjustable closed soon pole 261, make slide 320 slide to suitable distance, thereby make slide 320 displacement can adjust, and make a plurality of complementary unit 400 rotated by adjacent 360 boards and drive and be close to each other.

The auxiliary mechanism 400 comprises a support plate 410, one end of the support plate 410 is rotatably connected with one side of the adjacent rotating plate 360, one end of the support plate 410 is provided with a torsion spring, one end of the torsion spring is fixedly connected with one side of the adjacent rotating plate 360, the other end of the torsion spring is fixedly connected with one end of the support plate 410, one end of one side of the support plate 410 is fixedly connected with a pull rope 412, one end of the pull rope 412 bypasses one end of the adjacent rotating plate 360 and is fixedly connected with the top surface of the lantern ring 240, the other ends of the support plates 410 on the plurality of auxiliary mechanisms 400 are fixedly connected with connecting cylinders 411, guide ropes 420 are arranged above the plurality of auxiliary mechanisms 400, a support rod 430 is fixedly connected with the top surface of the connecting plate 100, a guide groove 431 is arranged on the outer side wall of the support rod 430, a sliding cylinder 440 is slidably sleeved on the outer side wall of the support rod 430, a connecting strip 441 embedded in the guide groove 431 is fixedly connected with the inner side wall of the sliding cylinder 440, a containing cylinder 442 is rotatably sleeved on the outer side wall of the sliding cylinder 442, and a torsion spring is arranged on the containing cylinder 442, one end of the torsion spring is fixedly connected with the inner side wall of the containing barrel 442, the other end of the torsion spring is fixedly connected with the outer side wall of the sliding barrel 440, one end of the guide rope 420 is provided with a socket 421, the other end of the guide rope sequentially penetrates through the connecting barrels 411 and the socket 421 and is fixedly wound with the inner side wall of the containing barrel 442, in an initial state, the support plates 410 on the auxiliary mechanisms 400 are pulled and limited by the sleeve rings 240 through the pull ropes 412, so that the support plates 410 are parallel to the adjacent rotating plates 360, when the sleeve rings 240 move upwards, the pull ropes 412 are loosened, so that the support plates 410 automatically rotate towards the adjacent fixing plates 310 due to the resetting elasticity of the adjacent torsion springs to form a bending state with the adjacent rotating plates 360, then when the rotating plates 360 are abutted and rotated by the adjacent screwing rods 261, one ends of the rotating plates 360 all move towards the inlet and outlet 101, so that one ends of the rotating support plates 410 are close to each other, one end of a lifted pipe is clamped, and as one end of the plurality of rotating support plates 410 approaches to each other, the rope loop formed by the guide rope 420 passing through the insertion opening 421 is loosened, then one end of the guide rope 420 is driven by the storage barrel 442 due to the reset elastic force of the torsion spring therein to be automatically wound on the storage barrel 442, so that the rope loop on the guide rope 420 continuously shrinks as one end of the plurality of support plates 410 approaches to each other, the end of the pipe fitting inside the rope loop of the guide rope 420 is limited, and the pipe fitting is lowered through the hoisting device, the guide rope 420 continuously shrinks along with the continuous lowering of the pipe fitting in the whole process until the rope loops of the plurality of support plates 410 and the guide rope 420 cling to the pipe fitting, and the hoisted pipe fitting is guided to be aligned with the pipe fitting in the oil well and is located inside the power tong body 500, so that the power tong body 500 is used for screwing two pipe fittings, when the pipe fitting is long, the pipe fitting is easy to swing along with wind and generate large force, at the pipe fitting is directly used for clamping and guiding the pipe fitting, and the situations that the pipe fitting is misplaced or unfirm due to the like due to the swinging along with wind, which the situations that the pipe fitting is difficult to be aligned and misplaced, and the situations that the pipe fitting is difficult to be misplaced and the situations are caused, thereby improving the guiding effect of the pipe fitting and limiting effect of the end of the pipe fitting.

A gap 362 is formed at one end of each of the rotating plates 360, and the pull ropes 412 are located in the adjacent gaps 362, so that the pull ropes 412 are limited by the gaps 362, and the pull ropes 412 are prevented from being separated from one end of the rotating plate 360.

The rectangular grooves 361 are formed in one sides of the rotating plates 360, one ends of the rectangular grooves 361 are rotatably connected with the abutting plates 460, one sides of the abutting plates 460 are in contact with the rotating plates 360, the screws 450 are rotatably connected between two ends of the rectangular grooves 361, the limiting plates 451 are rotatably sleeved on the outer side walls of the screws 450, the screws 450 are located on one sides of the abutting plates 460, the limiting plates 451 are in contact with the abutting plates 460, the positions of the limiting plates 451 are adjusted by rotating the screws 450, the limiting plates 451 can abut against the abutting plates 460 to limit the rotating angles of the abutting plates 460, the support plates 410 rotate until one sides abut against the abutting plates 460 due to the restoring elasticity of the torsion springs, the rotating angles of the support plates 460 can be adjusted, the rotating angles of the support plates 410 can be adjusted, the lengths of the rotating rods 261 can be adjusted, the intervals between the sliding plates 320 and the support plates 410 can be controlled, and the positions of pipe fittings of various specifications can be limited by the sliding plates 320 and the support plates 410.

The outer arc surfaces of the arc plates 210 are provided with notches, the spring clamping blocks 211 are arranged in the notches, one ends of the spring clamping blocks 211 are abutted against the inner side wall of the cylinder 220, the cylinder 220 can slide on the arc plates 210 and can only be pulled by the sleeve ring 240 to move, when the pipe is limited, as the pipe has a certain diameter, the rotating plate 360 cannot be jacked to be in a completely vertical state when the rotating plate 261 is abutted against the rotating plate 360, and the rotating plate 360 is still in an inclined state after being abutted by the rotating plate 261, the electric push rod 250 starts to push the sleeve ring 240 to drive the cylinder 220 to move upwards to limit the pipe by the support plates 410 and the sliding plates 320, and after the power clamp body 500 is utilized to complete the screwing, when the electric push rod 250 is reset, the sleeve ring 240 can descend in advance, the pull ropes 412 are pulled to reset the support plates 410, however, because the plurality of support plates 410 are abutted against the side wall of the pipe fitting and are difficult to reset, when the lantern ring 240 moves downwards continuously, the plurality of support plates 410 are controlled by pulling the pull rope 412 to drive the adjacent rotating plates 360 to press downwards, the plurality of rotating plates 360 press the adjacent screwing rods 261 downwards until the adjacent screwing rods 261 are separated from the rotating plates 360, so that the plurality of screwing rods 261 drive the barrel 220 to slide downwards, the plurality of rotating plates 360 rotate, the plurality of support plates 410 have sufficient space to reset, a rope sleeve formed by the plurality of support plates 410 and the guide rope 420 forms a fence on the periphery of the pipe, and provides auxiliary protection for a person when the pipe is sent into an oil well, then the lantern ring 240 moves downwards to abut against the annular plate 230 at the bottom of the barrel 220, and then drives the barrel 220 to move downwards by abutting against the annular plate 230 at the bottom of the barrel 220, so that the barrel 220 is reset.

The working principle is as follows: when the device is used, firstly, a controller is arranged on the connecting plate 100 to control the opening and closing of the two electric push rods 250, the controller is arranged on the connecting plate 100 to control the opening and closing of the intelligent push rod 110, then, the connecting plate 100 is connected with an oil well mouth by using bolts or other connecting pieces, the inlet and outlet 101 is aligned to the oil well mouth, and a pipe fitting in the oil well is positioned in a rope sleeve formed by one end of the limiting rope 330 penetrating through the through hole 331;

hoisting another pipe fitting to the space above the plurality of auxiliary mechanisms 400, enabling the bottom of the hoisted pipe fitting to be positioned in a rope sleeve formed by one end of the guide rope 420 penetrating through the insertion opening 421, then rotating the screw rods 450 on the plurality of auxiliary mechanisms 400 according to the caliber of the pipe fitting, adjusting the positions of the plurality of limiting plates 451, thereby controlling the rotatable distance of the plurality of abutting plates 460, and then rotating the plurality of screwing rods 261 to adjust the length thereof, thereby controlling the sliding distance of the plurality of sliding plates 320;

starting the two electric push rods 250, synchronously controlling the lifting pipe fitting to descend, enabling the lantern ring 240 to move upwards until the lantern ring is abutted against the annular plate 230 at the top of the cylinder body 220, enabling the pull ropes 412 to be loosened, enabling the support plates 410 to rotate to be abutted against the adjacent resisting plates 460 due to the reset elasticity of the adjacent torsion springs, enabling one ends of the support plates 410 to approach each other, enabling the rope sleeves formed by the guide ropes 420 to be loosened, enabling the storage cylinder 442 to automatically wind one end of the guide rope 420 due to the reset elasticity of the torsion springs inside, enabling the rope sleeves formed by the guide ropes 420 to be tightened, limiting the pipe fitting, enabling the lantern ring 240 to drive the cylinder body 220 to move upwards along with the continuous upward movement of the two electric push rods 250, enabling the cylinder body 220 to abut against the rotary plates 360 to approach each other, enabling one ends of the support plates 410 to continue to approach each other, enabling the rotary rods 261 to abut against the adjacent rotary plates 360 to further rotate along with the upward movement of the cylinder body 220, one ends of the support plates 410 are continuously close to each other, when the pipe fittings to be hoisted move to a position close to the power tong body 500, the pipe fittings are hooped by rope sleeves formed by the support plates 410 and the guide ropes 420, and meanwhile, the rotation of the rotating plates 360 is resisted with the adjacent sliding plates 320 to slide, so that the end parts of the pipe fittings in the oil well are limited by the sliding plates 320, as one ends of the sliding plates 320 are close to each other, the rope sleeves formed by the limiting ropes 330 are loosened, then the winding drum 340 winds one end of the limiting rope 330 by the reset elastic force of the internal volute spiral spring to tighten the rope sleeves formed by the limiting ropes 330, so that the rope sleeves formed by the sliding plates 320 and the limiting ropes 330 hoop the pipe fittings in the oil well, then the intelligent push rod 110 is started to control the power tong body 500 to screw the connecting pieces at the adjacent end parts of the two pipe fittings, and the rotating plates 360, the guide ropes 420, the support plates 410 and the sliding plates 320 are not contacted with the power tong body 500 when in motion;

after the screwing is finished, the resetting parts of the two electric push rods 250 are started, the lantern ring 240 pulls the pull ropes 412 to drive the adjacent support plates 410 to rotate, however, the support plates 410 are abutted to the lifting pipe fittings, the lantern ring 240 pulls the support plates 410 to press the rotating plates 360 to rotate through the pull ropes 412, the inclined rotating plates 360 are abutted to the adjacent rotating rods 261 to press down, the rotating rods 261 are separated from the adjacent rotating plates 360 and move the barrel 220 downwards, so that the rotating plates 360 continue to automatically rotate to pull the sliding plates 320 due to self weight, the oil well is not hooped by the pipe fittings, then the lantern ring 240 continues to move downwards, the support plates 410 are rotated to reset, the support plates 410 can complete resetting due to the fact that the rotating plates 360 rotate to provide enough space for the support plates 410, then the pipe fittings are placed into the oil well, a fence formed by rope sleeves formed by the support plates 410 and the guide ropes 420 is used for supporting peripheral personnel to support when the pipe fittings topple over, the pipe fittings can be pulled to a certain degree by the electric push rods 250, and the electric push rods 240 drive the rotating plates to automatically reset due to pull the self weight.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.

Claims

1. An oil well maintenance power tong comprises a connecting plate (100) and a power tong body (500), and is characterized in that the top surface of the connecting plate (100) is fixedly connected with an intelligent push rod (110), the movable end of the intelligent push rod (110) is fixedly connected with the power tong body (500), a driving mechanism (200) is arranged below the power tong body (500), a clamping mechanism (300) is arranged inside the driving mechanism (200), a plurality of auxiliary mechanisms (400) are arranged on the clamping mechanism (300), and an inlet and an outlet (101) are formed in the center of the top surface of the connecting plate (100);

fixture (300) include a plurality of fixed plates (310) of evenly arranging around business turn over mouth (101), and a plurality of fixed plate (310) bottom surfaces all with connecting plate (100) top surface fixed connection, a plurality of sliding hole (311) have all been seted up to fixed plate (310) one side, and inside equal sliding connection of a plurality of sliding hole (311) has slide (320), and is a plurality of slide (320) one end has all been seted up and has been run through groove (321), and a plurality of slide (320) top is provided with spacing rope (330), spacing rope (330) one end has been seted up and has been run through mouthful (331), and spacing rope (330) other end runs through a plurality of grooves (321) and runs through mouthful (331) in proper order, connecting plate (100) top surface fixedly connected with dead lever (350), and dead lever (350) lateral wall rotate and be connected with receipts reel (340), and the fixed winding inside wall of spacing rope (330) other end and a rolling reel (340).

2. An oil well maintenance power tong according to claim 1, characterized in that the inner side wall of the winding drum (340) is provided with a spiral spring, and one end of the spiral spring is fixedly connected with the inner side wall of the winding drum (340) and the other end is fixedly connected with the outer side wall of the fixing rod (350).

3. A workover power tong according to claim 1, characterized in that a plurality of said skid plates (320) are each fixedly connected at one end with an abutment (322).

4. A well servicing power tong according to claim 2, characterized in that the drive mechanism (200) comprises a barrel (220), and a plurality of sliding plates (320) are all positioned in the cylinder body (220), a plurality of arc-shaped plates (210) are uniformly and fixedly connected with the top surface of the connecting plate (100), and the outer side walls of the arc-shaped plates (210) are all contacted with the inner side wall of the cylinder body (220), the bottom end and the top end of the outer side wall of the cylinder body (220) are fixedly sleeved with annular plates (230), the outer side wall of the cylinder body (220) is positioned between the two annular plates (230) and is sleeved with a lantern ring (240) in a sliding way, the bottom surface of the connecting plate (100) is provided with two circular holes (102), electric push rods (250) are fixedly connected inside the two circular holes (102), the movable ends of the two electric push rods (250) are fixedly connected with the bottom surfaces of the lantern rings (240), one side of each fixing plate (310) is positioned below the adjacent sliding hole (311) and is rotatably connected with a rotating plate (360), the other ends of the sliding plates (320) are fixedly connected with connecting ropes (323), one ends of the connecting ropes (323) are fixedly connected with one side of the adjacent rotating plate (360), the other sides of the plurality of rotating plates (360) are respectively attached to the top surface of the cylinder body (220), the plurality of rotating plates (360) are in one-to-one correspondence with the plurality of auxiliary mechanisms (400), and a plurality of auxiliary mechanisms (400) are all positioned at one end of the opposite rotating plate (360).

5. A workover power tong according to claim 4, characterised in that the other ends of said plurality of said skid plates (320) are each arcuate surfaces.

6. An oil well maintenance power tong according to claim 4, characterized in that a plurality of internal thread cylinders (260) are fixedly connected to the inner side wall of the cylinder body (220), the internal thread cylinders (260) correspond to the rotating plates (360) one by one, screwing rods (261) are screwed in the internal thread cylinders (260), and the screwing rods (261) are movably abutted against the other sides of the corresponding rotating plates (360).

7. The oil well maintenance power tong as claimed in claim 4, characterized in that the auxiliary mechanism (400) comprises a support plate (410), one end of the support plate (410) is rotatably connected with one side of the adjacent rotating plate (360), one end of the support plate (410) is provided with a torsion spring, one end of the torsion spring is fixedly connected with one side of the adjacent rotating plate (360), the other end of the torsion spring is fixedly connected with one end of the support plate (410), one end of one side of the support plate (410) is fixedly connected with a pull rope (412), one end of the pull rope (412) bypasses one end of the adjacent rotating plate (360) and is fixedly connected with the top surface of the collar (240), the other ends of the support plates (410) on the plurality of auxiliary mechanisms (400) are fixedly connected with a connecting cylinder (411), a guide rope (420) is arranged above the plurality of auxiliary mechanisms (400), a support rod (430) is fixedly connected with the top surface of the connecting plate (100), a guide groove (431) is formed on the outer side wall of the support rod (430), a sliding sleeve (440) is slidably sleeved with a sliding sleeve (440), a connecting strip (441) fixedly connected with an inner side wall of the sliding sleeve (440), a rotating sliding sleeve (440) is fixedly connected with a spring receiving cylinder (442), and the other end of the sliding sleeve is fixedly connected with a spring receiving cylinder (442), socket (421) have been seted up to direction rope (420) one end, the other end runs through a plurality of connecting cylinders (411) and socket (421) in proper order and with the fixed winding of storage cylinder (442) inside wall.

8. A workover power tong according to claim 7, characterised in that a plurality of said rotary plates (360) are each provided with a notch (362) at one end and a plurality of drawstrings (412) are each located within an adjacent notch (362).

9. The oil well maintenance power tong as claimed in claim 7, characterized in that a rectangular groove (361) is formed in one side of each of the plurality of rotating plates (360), one end of the rectangular groove (361) is rotatably connected with a resisting plate (460), one side of the resisting plate (460) is in contact with the rotating plate (360), a screw (450) is rotatably connected between two ends of the rectangular groove (361), a limiting plate (451) is rotatably sleeved on the outer side wall of the screw (450), the screw (450) is located on one side of the resisting plate (460), and the limiting plate (451) is in contact with the resisting plate (460).

10. The workover power tong according to claim 4, characterized in that a plurality of notches are formed in the outer arc surfaces of the arc plates (210), a plurality of spring clamping blocks (211) are arranged in the notches, and one end of each spring clamping block (211) is abutted against the inner side wall of the barrel (220).