CN104390059A

CN104390059A - Rotary reducing oil pipe clamper

Info

Publication number: CN104390059A
Application number: CN201310185588.8A
Authority: CN
Inventors: 凌锦文
Original assignee: JIANGSU GUIXIN PETROLEUM EQUIPMENT Co Ltd
Current assignee: JIANGSU GUIXIN PETROLEUM EQUIPMENT Co Ltd
Priority date: 2013-08-25
Filing date: 2013-08-25
Publication date: 2015-03-04

Abstract

The invention discloses a rotary reducing oil pipe clamper. The rotary reducing oil pipe clamper comprises a shell, a hydraulic cylinder, slip assemblies or clamp tooth assemblies, a side door, a side door bolt, a rotary table, a transmission device, a positioning device and a steel ball, an oil port joint, spring pins and a sealing mechanism, wherein multiple sets of slip assemblies or clamp teeth assemblies with different inner diameter specifications are arranged; and according to the outer diameter specification of an oil pipe to be clamped, the rotary table is rotated to select one set of slip assemblies or clamp teeth assemblies matched with the outer diameter specification of the oil pipe to be clamped, and the set of slip assemblies or clamp teeth assemblies matched with the outer diameter specification of the oil pipe to be clamped is used in place to adapt to the change of the outer diameter specification of the oil pipe to be clamped, so that the working time is saved, the production efficiency is improved, and new potential safety hazards are prevented.

Description

Rotary type reducing oil pipe binding clasp

Technical field

The present invention relates to a kind of oil pipe clamp device, especially rotary type reducing oil pipe binding clasp.

Background technique

Oil pipe clamp device is the utensil of the clamping oil pipe used in oil gas field shaft mouth operation, at present, general oil pipe clamp device adopts hydraulic driving, is referred to as hydraulic oil pipe binding clasp, when lower oil tube, hydraulic oil pipe binding clasp can realize clamping oil pipe well, hydraulic oil pipe binding clasp is made up of housing, oil hydraulic cylinder, slips assembly, side door, side door bolt, port connection, and hydraulic oil pipe binding clasp also comprises sealing mechanism, hydraulic oil pipe binding clasp is bilateral symmetry, and namely its left side structure is identical with the specification framework of right side structure and symmetrical, the center of its housing is the main through hole of round structure, housing there are two flange arrangements, namely the main through hole two ends of housing are fixedly connected with flange arrangement respectively, the center line of flange arrangement and the center line of main through hole are on the same line, housing has two side through hole, and two side through hole communicate with main through hole respectively, and a side through hole is positioned at main through hole side, another side through hole is positioned at main through hole opposite side, the center line of two side through hole on the same line and with the vertical and intersectant centerline of main through hole, oil hydraulic cylinder comprises cylinder barrel and cylinder cap, piston and piston rod, screw mandrel, cylinder barrel bolt and seal arrangement, piston rod is fixedly connected on the side of piston, the outer end of piston rod is pin thread structure, its top is plane, be referred to as to push up plane, the central axis of top plane and piston, the bi-side be connected with top plane are plane and side plane, its two side plane respectively with top plane orthogonal, and be parallel to each other, the perpendicular distance that its point is clipped to the center line of piston is equal, between side plane with piston rod main body, fluted structure is connected, groove structure open at both ends, its groove bottom is parallel with side plane, its two grooves side is parallel to each other, and it is vertical with groove bottom, the top plane parallel of groove side and piston rod, piston rod there is the blind hole of connection wire rod, the blind hole of connection wire rod and the central through bore of piston interlink, the blind hole of connection wire rod and the central through bore of piston and piston rod, the center line of piston on the same line, internal thread is had in the central through bore of piston and the blind hole of connection wire rod that links together, screw mandrel comprises body and step, body is circular pin, the step of the outwardly ring of intermediate peripheral wall of body, its step separates leading portion and back segment screw mandrel body, the external diameter of leading portion is less than the external diameter of back segment, the leading portion of body there is male thread.Slips assembly comprises slip spider, slip insert, slip spider there is box structure, box structure is convex slot, it is made up of inside groove and water jacket, namely there is convex slot in the outside of the pedestal of slip spider, horizontal break-through pedestal, its groove bottom is plane, convex slot comprises inside groove and water jacket, the width of its inside groove is greater than the width of water jacket, perpendicular distance between two groove sides of water jacket is identical with the perpendicular distance between two groove bottom of two groove structures at the top of the pin thread structure of the outer end of piston rod, the width of the groove structure groove bottom of the pin thread structure of the outer end of its piston rod is identical with the width of the groove side of the water jacket of the box structure of slip spider, the pin thread structure top plane of the outer end of piston rod is identical to the degree of depth of the inside groove of the perpendicular distance of groove side adjacent with top plane of groove structure and the box structure of slip spider, perpendicular distance between two side planes of the pin thread structure of the outer end of piston rod is equal with the perpendicular distance between two groove sides of the inside groove of the convex slot of the box structure of slip spider, slip spider and slip insert are interconnected, adopt direct fixed connection structure between slip spider and slip insert or adopt the positioning screwn fixed connection structure by socket cap, when adopting direct fixed connection structure between slip spider and slip insert, not by other component between slip spider and slip insert, slip spider is directly fixedly connected with mutually with slip insert, and slips assembly is as a whole, when adopting the positioning screwn fixed connection structure by socket cap between slip spider and slip insert, slips assembly comprises the positioning screwn also comprising socket cap, and there is outside thread the rear end of the positioning screwn of socket cap, slip spider has inner circle arcuate structure, inner circle arcuate structure and box structure lay respectively in the pedestal of slip spider, outside, inner circle arcuate structure there is circular attachment hole, the center line of the circular attachment hole of its slip spider and the center line of slip spider are on the same line, and it is vertical with the groove bottom of the convex slot of the box structure of slip spider, slip spider there is the positioning screw hole of two socket caps, the positioning screw hole of two socket caps lays respectively at the both sides of circular attachment hole and communicates with circular attachment hole respectively, the center line of the positioning screw hole of two socket caps point-blank, the vertical and intersectant centerline of its center line and circular attachment hole, internal thread is had in the positioning screw hole of socket cap, slip insert is circular arc sheet, in its slip insert has, outer two wall side faces, a wall is inner circle arc side face, be referred to as inwall side face, another wall side face is cylindrical arc side face, be referred to as outer wall side face, its inwall side face there is locking teeth structure, outwardly circular coupling bar on outer wall side face, locking teeth structure and circular coupling bar lay respectively in slip insert body, outside, the center line of circular coupling bar and the center line of slip insert are point-blank, there is annular anchoring groove the outer end of circular coupling bar, internal diameter and the degree of depth of the external diameter of circular coupling bar and length and circular attachment hole are corresponding identical, the circular coupling bar of its slip insert injects in the circular attachment hole of its slip spider and matches like this, the inwall side face of the outer wall side face of slip insert and the inner circle arcuate structure of slip spider is mutually by connecting, the positioning screwn of socket cap is injected respectively in the positioning screw hole of two socket caps on slip spider, make to screw between the outside thread of the rear end of the positioning screwn of socket cap and the internal thread of the positioning screw hole of socket cap to be connected, be connected with the annular anchoring groove of circular coupling bar in the annular anchoring groove that the front end of the positioning screwn of socket cap puts in circular coupling bar, the positioning screwn of two socket caps is clamped and blocks circular coupling bar, thus the circular coupling bar of fixing and locking, like this, piston rod packs in the hole in the middle of side door, the pin thread structure of piston rod to inject in the box structure on slip spider and mutually coincide, piston and piston rod are inserted in cylinder barrel, internal thread in the central through bore of the male thread on the leading portion of the body of screw mandrel and piston and the blind hole of the connection wire rod of piston rod that links together screws and is connected, cylinder cap stuffing box gland connects the back segment of the body of screw mandrel, the seal arrangement of oil hydraulic cylinder comprises sealing between the back segment of the body of cylinder cap and screw mandrel and the sealing between cylinder cap and cylinder barrel and the sealing between side door and cylinder barrel, sealing between piston rod and side door, sealing between piston rod and side door is divided into two-part, a part is sealed well pressure, a part is the oil pressure that sealing hydraulic control produces, twice sealing mechanism is between this two department, for making the sealing at this place very reliable, there is the seal ring of multiple structure, and the auxiliary seal of middle O-ring seals, side door itself is connected with housing by side door bolt, side door is positioned at outside the side through hole of housing, cylinder cap and cylinder barrel are fixed together by cylinder barrel bolt and side door, and slips assembly is installed and connected in the side through hole of housing, and the sealing between side door and cylinder barrel adopts y-shaped ring to realize two way sealed, the sealing mechanism of hydraulic oil pipe binding clasp comprises the sealing of the seal arrangement of oil hydraulic cylinder and the sealing between side door and housing and oil circuit, two oil circuit holes are had in the body of housing, one oil circuit hole collar extension of its housing is positioned at outside housing front, internal orifice is two, it lays respectively at the outside of housing two side through hole, the specification in oil circuit aperture of the oil circuit hole two internal orifice side door that be connected corresponding to it is respectively identical, link position is corresponding, and its oil circuit hole collar extension is fixedly connected with port connection, another oil circuit hole collar extension of its housing is also positioned at outside housing front, internal orifice is two, it lays respectively at the outside of housing two side through hole, the specification in oil circuit aperture of the oil circuit hole two internal orifice side door that be connected corresponding to it is respectively identical, link position is corresponding, and its oil circuit hole collar extension is fixedly connected with port connection, have an oil circuit hole in cylinder cap body, cylinder cap body is pierced in all side of being connected corresponding to cylinder barrel inside cylinder cap, its oil circuit hole, and centre passes inside cylinder cap, cylinder barrel has an oil circuit hole, the oil circuit aperture, all sides in cylinder cap oil circuit hole connects with an oil circuit orifice sealing in the oil circuit hole of cylinder barrel, oil circuit aperture in the middle of the inner side in the oil circuit hole of cylinder cap is led in cylinder barrel, two oil circuit holes of crossing side door are had in its side door, the two oil circuit apertures in an oil circuit hole of side door seal with another oil circuit aperture in the oil circuit hole of cylinder barrel and an oil circuit hole of housing respectively and interlink, and another oil circuit hole of side door and another oil circuit hole of housing seal and interlink and lead in cylinder barrel, its each parts are successively installed connection according to program respectively and are completed, and all have rubber seal to connect between each interface in its each oil circuit hole, it forms the oil circuit of independent completion sealing.The sealing of the sealing between each interface in hole, sealed packet oil scraper road of oil circuit and the oil circuit hole collar extension of port connection and housing, the left and right symmetry of structure of hydraulic oil pipe binding clasp, two slips assemblies are located opposite from the left and right sides through hole of housing respectively, and two relative slips assembly forms one group of slips assembly, port connection is tightly connected the hydraulic oil pipeline of hydraulic system, when hydraulic control system high pressure oil enters cylinder barrel closedown chamber, left and right, promotion piston driving left and right slips assembly moves along the side through hole of housing respectively to well head center, realize clamping oil pipe, when high pressure oil enters cylinder barrel unlatching chamber, left and right, promote piston driving left and right slips assembly to leaving the motion of well head central direction, unclamp oil pipe, slips assembly switch is controlled by the selector valve of the hydraulic control unit of hydraulic system, but the one group of oil pipe installed in same a bite Oil/gas Well is is normally connected and composed by the oil pipe of various outer diameter specification, so at lower oil tube, when using hydraulic oil pipe binding clasp clamping oil pipe, needs that will be different according to the external diameter specification of oil pipe, to use and the external diameter specification of its oil pipe adapts the slips assembly of the different internal diameter specification of mating, the internal diameter specification of slips assembly refers to the internal diameter specification of the inwall side face of the slip insert of slips assembly, and once hydraulic oil pipe binding clasp has been assembled, equipment one group of slips assembly in its hydraulic oil pipe binding clasp, the internal diameter specification of the slips assembly of its hydraulic oil pipe binding clasp is just fixing can not be changed, remove oil gas field OIH pipe like this, its hydraulic oil pipe binding clasp will change repeatedly slip insert or slips assembly usually, to adapt to the change of the external diameter specification of the oil pipe of required clamping, and change repeatedly slip insert or slips assembly process complexity, trouble, also can lose time, and repeatedly dismantle the sealing that oil hydraulic cylinder often damages oil circuit, damage hydraulic oil pipe binding clasp, produce new potential safety hazard.

Summary of the invention

The object of the invention is: a kind of rotary type reducing oil pipe binding clasp is provided, which overcome the defect of equipment one group of slips assembly in hydraulic oil pipe binding clasp, the slips assembly of rotary type reducing oil pipe binding clasp equipment many groups different inner diameters specification or the pincers tooth assembly of equipment many groups different inner diameters specification, according to the external diameter specification of the oil pipe of required clamping, by revolution rotating disk, choice for use and the external diameter specification of the oil pipe of required clamping adapt a group of mating of one group of slips assembly mating or choice for use and the external diameter specification of the oil pipe of required clamping that adapts clamps tooth assembly, and the one group of slips assembly use in place of mating or make of making to adapt with the external diameter specification of the oil pipe of required clamping adapts with the external diameter specification of the oil pipe of required clamping, a group of mating clamps the use in place of tooth assembly, thus adapt to the change of the external diameter specification of required clamping oil pipe, such saving operating time, save the trouble changed slip insert or slips assembly or pincers tooth assembly and bring, drastically increase the labor productivity of workman, stop to produce new potential safety hazard.

The object of the present invention is achieved like this: rotary type reducing oil pipe binding clasp is the utensil of the clamping oil pipe used in oil gas field shaft mouth operation, and it adopts hydraulic driving.Rotary type reducing oil pipe binding clasp comprises shell, oil hydraulic cylinder, slips assembly or pincers tooth assembly, side door, side door bolt, rotating disk, transmission device, positioning device and steel ball, port connection, spring pin, and rotary type reducing oil pipe binding clasp also comprises sealing mechanism.Rotary type reducing oil pipe binding clasp is bilateral symmetry, and namely its left side structure is identical with the specification framework of right side structure and symmetrical.Spring pin comprises shell, spring, pin.Its shell comprises housing, the fastening structure of housing lid and housing lid and housing, Hermetical connecting structure, housing comprises body and flange arrangement, body is rectangular structure, the center of body is the main through hole of hollow round structure, the center line of main through hole and the center line of housing are on the same line, inside chime rings shape structure on the inner circle wall of one end of main through hole, it is at the bottom of the ring of body, the center line of the center hole at the bottom of the ring of body and the center line of housing are on the same line, inner face at the bottom of the ring of body is the plane of cirque structure, the other end of main through hole is referred to as outer end, its body of all sides, outer end there is driving gear mounting hole, driving gear mounting hole on housing comprises counterbore and axis hole, side channel, counterbore is circular hole, the internal diameter of counterbore is greater than the internal diameter of axis hole, a ledge structure is formed between counterbore inner circle wall and the inner circle wall of axis hole, the center line of counterbore and axis hole on the same line, the perisporium of axis hole has and is communicated with the main through hole of body and the side channel of axis hole, the center line of body is respectively perpendicular to two relative groove sides of side channel, driving gear is installed and connected on housing by the driving gear mounting hole of housing, driving gear comprises gear disk and axle, install in side channel and connect gear disk, there is axle connecting through hole the centre of gear disk, and axle connecting through hole is square hole, the axle of driving gear is made up of four parts, i.e. columniform head, there is interior hexagonal structure on the top of its head, the afterbody of cylindrical structural, the middle part of cube structure, its external diameter be connected between head and middle part is greater than the cylindrical structural of the external diameter of head, axle sleeve enters in the axle connecting through hole of gear disk, the afterbody of axle puts in the axis hole that is inserted on housing, the middle part of axle is enclosed within the axle connecting through hole of the centre of gear disk, axle overlaps connected set circle, lasso is circle structure, the cylindrical structural cover connected set circle be connected between head and middle part of the axle of driving gear, lasso is inserted in the counterbore of driving gear mounting hole of housing, lasso respectively and the counterbore of driving gear mounting hole of housing and the cylindrical structural be connected between head and middle part of the axle of driving gear be tightly connected, uniform multiple connection blind hole on its body of the outer circumferential side of the outer end of main through hole is internal thread in its blind hole, the center line of blind hole and the centerline parallel of housing, body has two side through hole, and two side through hole communicate with main through hole respectively, and a side through hole is positioned at main through hole side, and another side through hole is positioned at main through hole opposite side, the center line of two side through hole on the same line and with the vertical and intersectant centerline of main through hole, outside at the bottom of the ring of body is flange arrangement, and on the same line, the intermediate throughholes of flange arrangement and the middle circular hole at the bottom of the ring of body interlink for the center line of flange arrangement and the center line of main through hole, the outer side surface of flange arrangement has the groove of annular, housing there is spring pin connecting through hole, spring pin connecting through hole installs linking springs pin, spring pin connecting through hole is positioned at the perisporium of housing and penetrates the perisporium of housing, the center line of spring pin connecting through hole and the vertical and intersectant centerline of housing, spring pin is fixedly connected on housing by the spring pin connecting through hole of housing, spring pin is connected with housing seal, comprise two parts, one is being tightly connected of the shell of spring pin and the spring pin connecting through hole of housing, one is being tightly connected of the pin of spring pin and the spring pin connecting through hole of housing, the pin of spring pin stretches to the main through hole of housing, housing lid comprises lid body, step, flange arrangement, side through hole, connecting through hole, lid body is cirque structure, be round tube hole in the middle of lid body, the side of lid body is the step of outwardly cirque structure, round tube hole in the middle of step and the round tube hole in the middle of lid body interlink, the opposite side of lid body is flange arrangement, the round tube hole of the through hole of the centre of flange arrangement and the centre of lid body interlinks, step and lid body, the center line of flange arrangement on the same line, the outer side surface of flange arrangement there is the groove of annular, there is a side through hole all sides of the round tube hole of the centre of lid body, the internal diameter of side through hole equals the external diameter of the head of the axle of driving gear, all sides of the round tube hole of the centre of lid body are uniformly distributed multiple connecting through hole.Oil hydraulic cylinder comprises cylinder barrel and cylinder cap, piston and piston rod, screw mandrel, cylinder barrel bolt and seal arrangement, piston rod is fixedly connected on the side of piston, piston rod there is the blind hole of connection wire rod, the blind hole of connection wire rod and the central through bore of piston interlink, the blind hole of connection wire rod and the central through bore of piston and piston rod, the center line of piston on the same line, internal thread is had in the central through bore of piston and the blind hole of connection wire rod that links together, screw mandrel comprises body and step, body is circular pin, the step of the outwardly ring of intermediate peripheral wall of body, its step separates leading portion and back segment the body of screw mandrel, the external diameter of leading portion is less than the external diameter of back segment, the leading portion of body there is male thread, the top putting in the outer end of the side through hole of housing of piston rod comprises pin thread and the pin attachment hole of head, pin thread comprises pin thread head and pin thread groove, the annular groove of the center line around piston that pin thread groove is concaved out by the head perisporium of piston rod, the center line of pin thread head and pin thread groove and piston rod on the same line, the center line of its center line and piston on the same line, pin attachment hole is arranged at the top putting in the outer end of the side through hole of housing of piston rod, the pin center line of attachment hole and the vertical and intersectant centerline of piston rod, and pin attachment hole is between pin thread and piston, and pin thread groove is between pin thread head and pin attachment hole.Rotary type reducing oil pipe binding clasp equipment many groups slips assembly or equipment many group pincers tooth assembly, when rotary type reducing oil pipe binding clasp equipment many groups slips assembly, the slips assembly of its equipment comprises slip spider, slip insert, slip spider there is the box hole of the pin thread connecting piston rod, box hole is the attachment hole of pin thread, it is circular hole, the center line in the box hole of its slip spider and the center line of slip spider are on the same line, slip spider there are two spring pin holes, two spring pin holes lay respectively at the both sides in box hole and communicate with box hole respectively, the center line of two spring pin holes point-blank, the vertical and intersectant centerline in its center line and box hole, slip spider there are two positioning holes, two positioning holes lay respectively at the both sides of the plane at the center line of slip spider and the center line place of two spring pin holes, the center line of two positioning holes on the same line, its center line is perpendicular to the plane at the center line of slip spider and the center line place of two spring pin holes, in two spring pin holes of slip spider, linking springs pin is installed respectively, slip spider and slip insert are interconnected, adopt direct fixed connection structure between slip spider and slip insert or adopt the positioning screwn fixed connection structure by socket cap, when adopting direct fixed connection structure between slip spider and slip insert, not by other component between slip spider and slip insert, slip spider is directly fixedly connected with mutually with slip insert, and slips assembly is as a whole, when adopting the positioning screwn fixed connection structure by socket cap between slip spider and slip insert, slips assembly comprises the positioning screwn also comprising socket cap, and there is outside thread the rear end of the positioning screwn of socket cap, slip spider has inner circle arcuate structure, inner circle arcuate structure and box hole lay respectively in the pedestal of slip spider, outside, inner circle arcuate structure there is circular attachment hole, the center line of the circular attachment hole of its slip spider and the center line of slip spider are on the same line, slip spider there is the positioning screw hole of two socket caps, the positioning screw hole of two socket caps lays respectively at the both sides of circular attachment hole and communicates with circular attachment hole respectively, the center line of the positioning screw hole of two socket caps point-blank, the vertical and intersectant centerline of its center line and circular attachment hole, internal thread is had in the positioning screw hole of socket cap, the center line of the positioning screw hole of two socket caps and the center line of slip spider and two spring pin holes is in same plane, slip insert is circular arc sheet, in its slip insert has, outer two wall side faces, a wall is inner circle arc side face, be referred to as inwall side face, another wall side face is cylindrical arc side face, be referred to as outer wall side face, its inwall side face there is locking teeth structure, outwardly circular coupling bar on outer wall side face, locking teeth structure and circular coupling bar lay respectively in the body of slip insert, outside, the center line of circular coupling bar and the center line of slip insert are point-blank, there is annular anchoring groove the outer end of circular coupling bar, internal diameter and the degree of depth of the external diameter of circular coupling bar and length and circular attachment hole are corresponding identical, the circular coupling bar of its slip insert injects in the circular attachment hole of its slip spider and matches like this, the inwall side face of the outer wall side face of slip insert and the inner circle arcuate structure of slip spider is mutually by connecting, the positioning screwn of socket cap is injected respectively in the positioning screw hole of two socket caps on slip spider, make to screw between the outside thread of the rear end of the positioning screwn of socket cap and the internal thread of the positioning screw hole of socket cap to be connected, be connected with the annular anchoring groove of circular coupling bar in the annular anchoring groove that the front end of the positioning screwn of socket cap puts in circular coupling bar, the positioning screwn of two socket caps is clamped and blocks circular coupling bar, thus realize being locked circular coupling bar, the specification of slips assembly refers to the internal diameter specification of slips assembly, the i.e. internal diameter specification of the inwall side face of the slip insert of slips assembly.When rotary type reducing oil pipe binding clasp equipment many group pincers tooth assembly, the pincers tooth assembly of its equipment comprises the positioning screwn of slide block and pincers tooth and socket cap, pincers tooth is by clamping tooth body, tooth body and circular coupling bar are formed, pincers tooth body is rectangular block, tooth body is by clamping the wall body that inwall that tooth body extends is the thread form of inner circle arc, the inwall of tooth body there is locking teeth structure, the outwardly rectangular block structured fixed block in middle part of one side of pincers tooth body, fixed block runs through the side be connected with fixed block of pincers tooth body, the fixed block of pincers tooth body connects circular coupling bar, tooth body and circular coupling bar lay respectively in pincers tooth body, outer both sides, the center line of circular coupling bar and the center line of pincers tooth are on the same line, there is annular anchoring groove the outer end of circular coupling bar, slide block is rectangular block structure, one side of slide block middle part have recessed rising as high as the banks, the side at the recessed recessed place of rising as high as the banks running through slide block of rising as high as the banks, slide block there is the circular attachment hole being connected and fixed pincers tooth, the aperture of circular attachment hole is in recessed groove bottom of rising as high as the banks, the center line of circular attachment hole and the center line of slide block are on the same line, distance between recessed two groove sides of rising as high as the banks is corresponding identical with the width of the fixed block of pincers tooth body, the recessed degree of depth of rising as high as the banks is corresponding identical with the thickness of the fixed block of pincers tooth body, slide block there is the positioning screwn through hole of two socket caps, the positioning screwn through hole of two socket caps lays respectively at the both sides of circular attachment hole and communicates with circular attachment hole respectively, the center line of the positioning screw hole of two socket caps point-blank, the vertical and intersectant centerline of its center line and circular attachment hole, internal thread is had in the positioning screw hole of socket cap, slide block there is the box hole of the pin thread connecting piston rod, box hole is the attachment hole of pin thread, it is circular hole, the center line in the box hole of its slide block and the center line of slide block are on the same line, slide block there are two spring pin holes, two spring pin holes lay respectively at the both sides in box hole and communicate with box hole respectively, the center line of two spring pin holes point-blank, the vertical and intersectant centerline in its center line and box hole, slide block there are two positioning holes, two positioning holes lay respectively at the both sides of the plane at the center line of the center line of circular attachment hole and the positioning screw hole of two socket caps and the center line place of two spring pin holes, the center line of two positioning holes on the same line, its center line is perpendicular to the plane at the center line of circular attachment hole and the center line of the positioning screw hole of two socket caps and the center line place of two spring pin holes, in two spring pin holes on slide block, linking springs pin is installed respectively, internal diameter and the degree of depth of the external diameter of circular coupling bar and length and circular attachment hole are corresponding identical, the circular coupling bar of its pincers tooth injects in the circular attachment hole of its slide block and matches like this, the fixed block of pincers tooth body sandwich a side of slide block middle part recessed rise as high as the banks in match, the positioning screwn of socket cap is injected respectively in the positioning screw hole of two socket caps of slide block, make to screw between the outside thread of the rear end of the positioning screwn of socket cap and the internal thread of the positioning screw hole of socket cap to be connected, be connected with the annular anchoring groove of circular coupling bar in the annular anchoring groove that the front end of the positioning screwn of socket cap puts in circular coupling bar, the positioning screwn of socket cap is clamped and blocks circular coupling bar, thus realize be locked circular coupling bar and pincers tooth, the specification of pincers tooth assembly refers to the internal diameter specification clamping tooth assembly, the internal diameter specification of the inwall of the inner circle arc of the wall body of the thread form that the pincers tooth body namely clamping tooth assembly extends.Like this, piston rod packs in the hole in the middle of side door, piston rod connects positioning sliding block, positioning sliding block there is piston rod connecting through hole, its piston rod connecting through hole longitudinally penetrates positioning sliding block body, the center line of piston rod connecting through hole and the center line of positioning sliding block are on the same line, positioning sliding block there is the positioning screwn through hole of two socket caps, the positioning screwn through hole of two socket cap lays respectively at the both sides of piston rod connecting through hole and communicates with piston rod connecting through hole, be internal thread in the positioning screwn through hole of socket cap, the center line of the positioning screwn through hole of socket cap and the vertical and intersectant centerline of piston rod connecting through hole, install in the positioning screwn through hole of socket cap and connect positioning screwn, the front end of positioning screwn puts in the pin attachment hole of piston rod, the outside thread of positioning screwn rear end screws with the positioning screwn through hole internal thread of socket cap and is connected, positioning sliding block is made to be fixedly connected on piston rod, piston and piston rod are inserted in cylinder barrel, internal thread in the central through bore of the male thread on the leading portion of the body of screw mandrel and piston and the blind hole of the connection wire rod of piston rod that links together screws and is connected, cylinder cap stuffing box gland connects the back segment of the body of screw mandrel, the seal arrangement of oil hydraulic cylinder comprises sealing between the back segment of the body of cylinder cap and screw mandrel and the sealing between cylinder cap and cylinder barrel and the sealing between side door and cylinder barrel, sealing between piston rod and side door, sealing between piston rod and side door is divided into two-part, a part is sealed well pressure, a part is the oil pressure that sealing hydraulic control produces, twice sealing mechanism is between this two department, for making the sealing at this place very reliable, there is the seal ring of multiple structure, and the auxiliary seal of middle O-ring seals, side door itself is connected with housing by side door bolt, side door is positioned at outside the side through hole of housing, cylinder cap and cylinder barrel are fixed together by cylinder barrel bolt and side door, and piston rod and positioning sliding block put in the side through hole of housing, and the sealing between side door and cylinder barrel adopts y-shaped ring to realize two way sealed, the sealing mechanism of rotary type reducing oil pipe binding clasp comprises the sealing of the seal arrangement of oil hydraulic cylinder and the sealing between side door and housing and oil circuit and the sealing of housing and housing lid, two oil circuit holes are had in the body of housing, one oil circuit hole collar extension is positioned at outside housing front, internal orifice is two, it lays respectively at the outside of housing two side through hole, the specification in oil circuit aperture of the oil circuit hole two internal orifice side door that be connected corresponding to it is respectively identical, link position is corresponding, and the oil circuit hole collar extension of its housing is fixedly connected with port connection, its another oil circuit hole collar extension is also positioned at outside housing front, internal orifice is two, it lays respectively at the outside of housing two side through hole, the specification in oil circuit aperture of the oil circuit hole two internal orifice side door that be connected corresponding to it is respectively identical, link position is corresponding, and the oil circuit hole collar extension of its housing is fixedly connected with port connection, have an oil circuit hole in cylinder cap body, cylinder cap body is pierced in all side of being connected corresponding to cylinder barrel inside cylinder cap, its oil circuit hole, and centre passes inside cylinder cap, cylinder barrel has an oil circuit hole, the oil circuit aperture, all sides in cylinder cap oil circuit hole connects with an oil circuit orifice sealing in the oil circuit hole of cylinder barrel, the oil circuit aperture that in cylinder cap, the inner side in oil circuit hole is middle is led in cylinder barrel, two oil circuit holes of crossing side door are had in its side door, the two oil circuit apertures in an oil circuit hole of side door are connected with another oil circuit aperture in the oil circuit hole of cylinder barrel and the oil circuit orifice sealing of housing respectively, and another oil circuit hole of side door and another oil circuit hole of housing seal and interlink and lead in cylinder barrel.Its each parts are successively installed connection according to program respectively and are completed, and all have rubber seal to connect between each interface in oil circuit hole, it forms the oil circuit of independent completion sealing.Sealing between each interface in hole, sealed packet oil scraper road of oil circuit and the oil circuit hole external tapping of port connection and housing and the sealing of housing; The left and right symmetry of structure of rotary type reducing oil pipe binding clasp, connects piston rod and positioning sliding block in the left and right sides through hole of housing respectively.Rotating disk is cirque structure, the central through bore of rotating disk is vertical circular hole, the center line of the central through bore of rotating disk and the center line of rotating disk are on the same line, the body of the rotating disk in the outside of the central through bore of rotating disk there is multiple side through hole, the body of rotating disk and the wall body of rotating disk, its side through hole is cross through hole, side through hole communicates with central through bore, side through hole is on the outer wall of rotating disk, the i.e. wall body of side through hole lateral penetration rotating disk, the center line of side through hole and the vertical and intersectant centerline of rotating disk, multiple side through hole is uniformly distributed on the wall body of rotating disk, namely the angle that the center line of each two adjacent side through hole is crossing is identical, multiple side through hole on rotating disk arrange in pairs, namely two relative side through hole form a pair side through hole, the center line of its same two side through hole to side through hole on the same line, form the structure of multipair side through hole, the center line of multiple side through hole at grade, its side through hole connects two relative spring pin holes respectively, be connected to the center line of two the relative spring pin holes on the through hole of the same side on the same line, the center line of two spring pin hole and the centerline parallel of rotating disk, and be connected the side through hole vertical and intersectant centerline of two spring pin hole, two spring pin holes communicate with side through hole respectively, and the aperture of an one spring pin hole is positioned on a side of rotating disk, and the aperture of another spring pin hole is positioned on the another side of rotating disk, installs linking springs pin respectively in two spring pin holes, the wall body of rotating disk there is multiple positioning hole, the aperture of positioning hole be positioned at rotating disk wall body perisporium on, the center line of positioning hole and the vertical and intersectant centerline of rotating disk, the center line of each positioning hole on the wall body of rotating disk at grade, positioning hole on rotating disk is corresponding with the side through hole on rotating disk, quantity is identical, multiple positioning hole be uniformly distributed in rotating disk wall body on, namely the angle that the center line of each two adjacent positioning holes is crossing is identical, its angle intersected is identical with the angle that the center line of adjacent two side through hole intersects, multiple positioning holes on rotating disk arrange in pairs, namely two relative positioning holes form a pair positioning hole, its center line with two positioning holes of a pair positioning hole on the same line, form the structure of multipair positioning hole, the perisporium of the wall body of the side of the side through hole of rotating disk is machined into driven gear, this side is referred to as the outside of rotating disk, one side of the adjacent driven gear of rotating disk is referred to as the outer side surface of rotating disk, the another side of rotating disk is referred to as inner side surface, the center line of driven gear and the center line of rotating disk are on the same line, inside and outside two sides of rotating disk there is respectively the annular groove around central through bore, two annular groove specification is identical, on the same line, the center line of its center line and rotating disk on the same line for the center line of two annular grooves, the perisporium of the wall body of the opposite side of the side through hole of rotating disk there is the side ring connected in star around central through bore, the center line of its side ring connected in star and the center line of rotating disk are on the same line, install respectively in each side through hole of rotating disk and connect slips assembly or pincers tooth assembly, namely slips assembly or pincers tooth assembly are installed and connected in the side through hole of rotating disk, slips assembly in the side through hole of rotating disk or pincers tooth assembly arrange in pairs, namely two relative slips assemblies or two relative pincers tooth assemblies form a pair slips assembly or a pair pincers tooth assembly, it is one group of slips assembly or one group of pincers tooth assembly with a pair slips assembly or with a pair pincers tooth assembly, slips assembly or pincers tooth assembly are put in the side through hole of rotating disk, the outer wall of the outer wall of the slip spider of its slips assembly or the pincers tooth slide block of pincers tooth assembly coordinates the inwall of side through hole, the box hole of the box hole of the slip spider of slips assembly or the slide block of pincers tooth assembly is outside rotating disk.Rotating disk is installed and connected in the main through hole of housing, in rotating disk, side ring connected in star on annular groove on outer two sides and the perisporium of rotating disk installs some steel balls respectively, the inner bottom surface at the bottom of ring of the steel ball that the annular groove on face connects and housing is tangent to be leaned on, in the annular groove of the steel ball one part sphere that the side ring connected in star of the perisporium of rotating disk connects on inner side surface, the steel ball of the side ring connected in star connection of the perisporium of rotating disk and the main through hole inner circle wall of housing are mutually by connecting, in the annular groove of the steel ball one part sphere that annular groove on the outer side surface of rotating disk connects on outer side surface, the ring inner side surface of the step of the steel ball that the annular groove on the outer side surface of rotating disk connects and housing lid is tangent to be leaned on, housing lid is fixedly connected with housing, namely housing lid and housing is fastenedly connected with bolt by the connecting through hole of housing lid and the blind hole that connects of housing, rotating disk and housing are located, namely the center line of the center line of rotating disk and housing on the same line, the center line of the side through hole of housing is in the plane at the place of the center line of multiple side through hole of rotating disk, slips assembly or pincers tooth assembly and piston rod locate, namely the center line in the box hole of the center line in the box hole of the slip spider of each slips assembly or the slide block of each pincers tooth assembly at grade, the center line in box hole of the center line in the box hole of the slip spider of its slips assembly or the slide block of pincers tooth assembly and the vertical and intersectant centerline of housing, in the plane at the place of the center line in the box hole of the slide block of center line in the box hole of the slip spider of each slips assembly of the center line of piston rod or each pincers tooth assembly, the center line of fixing slide block and the center line of piston rod are on the same line, piston rod and slips assembly or clamp tooth assembly and locate and also comprise, in the positioning hole of the pin jacking rotating disk of the spring pin on housing, behind its rotating disk location, a pair slips assembly or pincers tooth assembly is had to be positioned at two piston rod middles, this becomes a pair slips assembly in place or pincers tooth assembly when rotating disk is located to slips assembly or pincers tooth assembly, and the center line in the box hole of the slide block of the box hole of the slip spider of its a pair slips assembly in place or a pair pincers tooth assembly and the center line of two piston rods are on the same line, the center line of two spring pin holes of its correspondence on the both sides rotating disk of the center line of two positioning holes of slip spider or two positioning holes of slide block and slips assembly or pincers tooth assembly and the center line of rotating disk are at grade, in the plane at the center line place of each positioning hole of center line on rotating disk perisporium of the spring pin on housing.Transmission device comprises driving gear and driven gear; Meshingly to be connected with the tooth of driven gear on rotating disk is mutual in the main through hole that the tooth of driving gear puts in housing, the center line of driving gear and the centerline parallel of housing, the head of the axle of driving gear exposes housing, and the head of its axle pierces in the side through hole of housing lid.The positioning hole of the spring pin in the spring pin through hole that positioning device comprises spring pin on housing and the positioning hole on corresponding rotating disk perisporium, be installed and connected on rotating disk and corresponding slip spider or the positioning hole of slide block, be installed and connected on slip spider spring pin through hole in spring pin or the side through hole of the groove of spring pin in spring pin through hole on slide block and piston rod pin thread, positioning sliding block on piston rod and rotating disk; The specification of the pincers tooth assembly of its identical or same group of slips assembly specification of same group is identical, the specification of the pincers tooth assembly of not identical or different group of the slips assembly specification of different group is not identical, respectively group slips assembly or pincers tooth assembly arrange the corresponding specification of mating that adapts with the oil pipe of different size respectively for they, like this, each group slips assembly or each Self Matching of each group pincers tooth assembly its adapt to the oil pipe of specification.The shell of the spring pin on its housing there is latch through hole, the center line of its latch through hole and the central axis of shell, the pin of the spring pin on housing has latch attachment hole, the central axis of the center line of its latch attachment hole and the pin of spring pin, be equipped with latch, when the pin of spring pin is by spring pressure stretch and in the positioning hole putting in rotating disk completely, latch is injected in the latch attachment hole of the pin of latch through hole on the shell of spring pin and spring pin, to make between the shell of its spring pin and the pin of spring pin fixing.The head of the axle of driving gear protrudes from outside housing lid, housing lid is installed and connects dial, it is placed on the head of the axle of driving gear, dial is carved with the numeral of the plurality of specifications of slips assembly that rotary type reducing oil pipe binding clasp equips or pincers tooth assembly, the head of its axle is installed and is connected pointer, by pointer and dial, to show the specification of slips assembly or pincers tooth assembly one group of slips assembly whether in place and in place or pincers tooth assembly.Port connection is tightly connected the hydraulic oil pipeline of hydraulic system.In the whole working procedure of rotary type reducing oil pipe binding clasp, rotary type reducing oil pipe binding clasp has four positioning states, the i.e. location of rotating disk, the secondary location of the positioning sliding block of piston rod, piston rod and slips assembly or clamp being located by connecting of tooth assembly, rotating disk and slips assembly or clamp the location of tooth assembly, in the whole working stroke of piston, first move ahead in process at piston, piston rod head stretches out the side through hole of housing together with the part of positioning sliding block, positioning sliding block is connected in the side through hole of housing and the side through hole of rotating disk, thus realize slips assembly or pincers tooth assembly lower second time location in working order, simultaneously piston rod head put in the slip spider of slips assembly box hole in or clamp in the box hole of slide block of tooth assembly, in the annular groove that the pin clinching of the spring pin on the slip spider of slips assembly enters piston rod head or the slide block of pincers tooth assembly the pin clinching of spring pin enter in the annular groove of piston rod head, realize piston rod and slips assembly or clamp being located by connecting of tooth assembly, in piston retracts process, the pin clinching of the spring pin of rotating disk enters in the positioning hole on the slip spider of slips assembly or the pin clinching of the spring pin of rotating disk enters to clamp in the positioning hole of the slide block of tooth assembly, realize rotating disk and slips assembly or clamp the location of tooth assembly, simultaneously, piston rod and slips assembly or clamp tooth assembly and be separated, piston rod head is retracted in the side through hole of housing together with positioning sliding block.Working state when the working procedure of rotary type reducing oil pipe binding clasp comprises dial rotation, working state when rotary type reducing oil pipe binding clasp loosens, the working state during clamping of rotary type reducing oil pipe binding clasp, during working state when dial rotation or when rotary type reducing oil pipe binding clasp loosens, its piston rod head is retracted in the side through hole of housing together with positioning sliding block, piston rod is separated with rotating disk, the clinching that the clinching that the pin of each spring pin on rotating disk is corresponding respectively enters the pin of each spring pin pressure in the positioning hole on the slip spider of slips assembly or on rotating disk corresponding respectively enters to clamp in the positioning hole of the slide block of tooth assembly, each slips assembly or each pincers tooth assembly are positioned in the side through hole of each correspondence of rotating disk respectively, during working state when rotary type reducing oil pipe binding clasp clamps, the pin of the spring pin on its housing is also put in a positioning hole of rotating disk by spring pressure stretch completely, piston rod head stretches out the side through hole of housing together with the part of positioning sliding block, it puts in the side through hole of rotating disk, positioning sliding block is connected in the side through hole of housing and the side through hole of rotating disk, simultaneously piston rod head put in the slip spider of one group of slips assembly in place box hole in or one group in place clamp in the box hole of the slide block of tooth assembly, in the annular groove that the pin clinching of the spring pin on the slip spider of its slips assembly enters piston rod head or the slide block of pincers tooth assembly the pin clinching of spring pin enter in the annular groove of piston rod head, and other slips assembly or pincers tooth assembly are positioned in the side through hole of each correspondence of rotating disk respectively.Rotary type reducing oil pipe binding clasp adopts hydraulic driving, namely when hydraulic control system high pressure oil enters cylinder barrel closedown chamber, left and right, about the one group slips assembly that promotion piston driving is in place or in place one group of pincers tooth assembly move along case side through hole respectively to well head center, realize clamping oil pipe, when high pressure oil enters cylinder barrel unlatching chamber, left and right, promote piston driving about one group slips assembly in place or clamp tooth assembly to leaving the motion of well head central direction, unclamp oil pipe, the switch of slips assembly or pincers tooth assembly is controlled by the selector valve of hydraulic system.Rotary type reducing oil pipe binding clasp is equipped with hand handle, there is outer-hexagonal structure one end of hand handle, the interior hexagonal structure of the specification of outer-hexagonal structure of its hand handle and the head of the axle of driving gear matches, thus matches when the outer-hexagonal structure of hand handle is inserted in the interior hexagonal structure of the head of the axle of driving gear, like this, rotary type reducing oil pipe binding clasp is installed in the apparatus for work of oil and gas wellhead lower oil tube, when the external diameter of the oil pipe removed changes, use handle rotation driving gear, make dial rotation, change one group of slips assembly in place or one group of pincers tooth assembly, choice for use and the external diameter specification of the oil pipe of required clamping adapt a group of mating of one group of slips assembly mating or choice for use and the external diameter specification of the oil pipe of required clamping that adapts clamps tooth assembly, and the one group of slips assembly use in place of mating or make of making to adapt with the external diameter specification of the oil pipe of required clamping adapts with the external diameter specification of the oil pipe of required clamping, a group of mating clamps the use in place of tooth assembly, thus adapt to the oil pipe that external diameter there occurs change, thus reach object of the present invention.

Owing to have employed technique scheme, rotary type reducing oil pipe binding clasp not only which overcomes the defect of equipment one group of slips assembly in hydraulic oil pipe binding clasp, the slips assembly of rotary type reducing oil pipe binding clasp equipment many groups different inner diameters specification or the pincers tooth assembly of equipment many groups different inner diameters specification, according to the external diameter specification of the oil pipe of required clamping, by revolution rotating disk, choice for use and the external diameter specification of the oil pipe of required clamping adapt a group of mating of one group of slips assembly mating or choice for use and the external diameter specification of the oil pipe of required clamping that adapts clamps tooth assembly, and the one group of slips assembly use in place of mating or make of making to adapt with the external diameter specification of the oil pipe of required clamping adapts with the external diameter specification of the oil pipe of required clamping, a group of mating clamps the use in place of tooth assembly, thus adapt to the change of the external diameter specification of required clamping oil pipe, save the operating time, save the trouble changed slip insert or slips assembly or pincers tooth assembly and bring, drastically increase the labor productivity of workman, stop to produce new potential safety hazard, and structure is simple, easy to operate.

Accompanying drawing explanation

Below in conjunction with embodiment, rotary type reducing oil pipe binding clasp of the present invention is further described.

Accompanying drawing 1 is the example structure schematic diagram of rotary type reducing oil pipe binding clasp of the present invention.

Accompanying drawing 2 is the example structure explosion views of rotary type reducing oil pipe binding clasp of the present invention.

In figure: 1. cylinder cap, 2. screw mandrel, 3. cylinder barrel, 4. piston, 5. side door, 6. positioning sliding block, 7. the pin attachment hole of piston rod, 8. housing, 9. the pin thread groove of piston rod, 10. slide block, 11. steel balls, center hole at the bottom of the ring of the body of 12. housings, in the spring pin hole communicated with side through hole on flange arrangement 14. rotating disk of the outside at the bottom of the ring of the body of 13. housings, the spring pin be connected is installed, 15. housing lid, 16. pincers tooth bodies, the flange arrangement of 17. housing lid, the tooth body of 18. pincers teeth, 19. lassos, the head of the interior hexagonal configuration of the axle of 20. driving gears, the middle part of the cube structure of the axle of 21. driving gears, the gear disk of 22. driving gears, the afterbody of the cylindrical structural of the axle of 23. driving gears, 24. cylinder barrel bolts, 25. side door bolts, the spring pin connected is installed in the spring pin hole on 26. slide blocks, connecting thread blind hole on its body of outer circumferential side of the outer end of the main through hole of 27. housings, side through hole on 28. rotating disks, positioning hole on 29. rotating disks, the spring pin hole communicated with side through hole on 30. rotating disks, 31. pincers tooth assemblies, the spring pin connecting through hole of 32. housings installs the spring pin connected, 33. pointers, 34. oil pipes, 35. are connected to the positioning screwn in the pin attachment hole of piston rod, 36. rotating disks

Embodiment

In figure: rotary type reducing oil pipe binding clasp is the utensil of the clamping oil pipe used in oil gas field shaft mouth operation, and it adopts hydraulic driving.Rotary type reducing oil pipe binding clasp comprises shell, oil hydraulic cylinder, slips assembly or pincers tooth assembly, side door, side door bolt, rotating disk, transmission device, positioning device and steel ball, port connection, and rotary type reducing oil pipe binding clasp also comprises sealing mechanism.Rotary type reducing oil pipe binding clasp is bilateral symmetry, and namely its left side structure is identical with the specification framework of right side structure and symmetrical.Its shell comprises housing (8), the fastening structure of housing lid (15) and housing lid and housing, Hermetical connecting structure, housing comprises body and flange arrangement, body is rectangular structure, the center of body is the main through hole of hollow round structure, the center line of main through hole and the center line of housing are on the same line, inside chime rings shape structure on the inner circle wall of one end of main through hole, it is at the bottom of the ring of body, the center line of the center hole (12) at the bottom of the ring of body and the center line of housing are on the same line, inner face at the bottom of the ring of body is the plane of cirque structure, the other end of main through hole is referred to as outer end, its body of all sides, outer end there is driving gear mounting hole, driving gear mounting hole on housing comprises counterbore and axis hole, side channel, counterbore is circular hole, the internal diameter of counterbore is greater than the internal diameter of axis hole, a ledge structure is formed between counterbore inner circle wall and the inner circle wall of axis hole, the center line of counterbore and axis hole on the same line, the perisporium of axis hole has and is communicated with the main through hole of body and the side channel of axis hole, the center line of body is respectively perpendicular to two relative groove sides of side channel, driving gear is installed and connected on housing by the driving gear mounting hole of housing, driving gear comprises gear disk (22) and axle, install in side channel and connect gear disk, there is axle connecting through hole the centre of gear disk, axle connecting through hole is square hole, the axle of driving gear is made up of four parts, i.e. columniform head (20), the top of its head there is interior hexagonal structure, the afterbody (23) of cylindrical structural, the middle part (21) of cube structure, its external diameter be connected between head and middle part is greater than the cylindrical structural of the external diameter of head, axle sleeve enters in the axle connecting through hole of gear disk, the afterbody of axle puts in the axis hole that is inserted on housing, the middle part of axle is enclosed within the axle connecting through hole of the centre of gear disk, axle overlaps connected set circle (19), lasso is circle structure, the cylindrical structural cover connected set circle be connected between head and middle part of the axle of driving gear, lasso is inserted in the counterbore of driving gear mounting hole of housing, lasso respectively and the counterbore of driving gear mounting hole of housing and the cylindrical structural be connected between head and middle part of the axle of driving gear be tightly connected, uniform multiple connection blind hole (27) on its body of the outer circumferential side of the outer end of main through hole is internal thread in its blind hole, the center line of blind hole and the centerline parallel of housing, body has two side through hole, and two side through hole communicate with main through hole respectively, and a side through hole is positioned at main through hole side, and another side through hole is positioned at main through hole opposite side, the center line of two side through hole on the same line and with the vertical and intersectant centerline of main through hole, outside at the bottom of the ring of body is flange arrangement (13), the center line of flange arrangement and the center line of main through hole are on the same line, the intermediate throughholes of flange arrangement and the middle circular hole at the bottom of the ring of body interlink, and the outer side surface of flange arrangement have the groove of annular, housing there is spring pin connecting through hole, spring pin connecting through hole installs linking springs pin (32), spring pin connecting through hole is positioned at the perisporium of housing and penetrates the perisporium of housing, the center line of spring pin connecting through hole and the vertical and intersectant centerline of housing, spring pin is fixedly connected on housing by the spring pin connecting through hole of housing, spring pin is connected with housing seal, comprise two parts, one is being tightly connected of the shell of spring pin and the spring pin connecting through hole of housing, one is being tightly connected of the pin of spring pin and the spring pin connecting through hole of housing, the pin of spring pin stretches in the main through hole of housing, housing lid (15) comprises lid body, step, flange arrangement, side through hole, connecting through hole, lid body is cirque structure, be round tube hole in the middle of lid body, the side of lid body is the step of outwardly cirque structure, round tube hole in the middle of step and the round tube hole in the middle of lid body interlink, the opposite side of lid body is flange arrangement (17), the round tube hole of the through hole of the centre of flange arrangement and the centre of lid body interlinks, step and lid body, the center line of flange arrangement on the same line, the outer side surface of flange arrangement there is the groove of annular, there is a side through hole all sides of the round tube hole of the centre of lid body, the internal diameter of side through hole equals the external diameter of the head of the axle of driving gear, all sides of the round tube hole of the centre of lid body are uniformly distributed multiple connecting through hole.Oil hydraulic cylinder comprises cylinder barrel (3) and cylinder cap (1), piston (4) and piston rod, screw mandrel (2), cylinder barrel bolt (24) and seal arrangement, piston rod is fixedly connected on the side of piston, piston rod there is the blind hole of connection wire rod, the blind hole of connection wire rod and the central through bore of piston interlink, the blind hole of connection wire rod and the central through bore of piston and piston rod, the center line of piston on the same line, internal thread is had in the central through bore of piston and the blind hole of connection wire rod that links together, screw mandrel comprises body and step, body is circular pin, the step of the outwardly ring of intermediate peripheral wall of body, its step separates leading portion and back segment the body of screw mandrel, the external diameter of leading portion is less than the external diameter of back segment, the leading portion of body there is male thread, the top of the outer end of piston rod comprises pin thread and the pin attachment hole (7) of head, pin thread comprises pin thread head and pin thread groove (9), the annular groove of the center line around piston that pin thread groove is concaved out by the head perisporium of piston rod, the center line of pin thread head and pin thread groove and piston rod on the same line, the center line of its center line and piston on the same line, pin attachment hole is arranged at the top putting in the outer end of the side through hole of housing of piston rod, the pin center line of attachment hole and the vertical and intersectant centerline of piston rod, and pin attachment hole is between pin thread and piston, and pin thread groove is between pin thread head and pin attachment hole.Three groups of pincers tooth assemblies equipped by rotary type reducing oil pipe binding clasp, pincers tooth assembly (31) comprise the positioning screwn of slide block (10) and pincers tooth and socket cap, pincers tooth is by clamping tooth body (16), tooth body (18) and circular coupling bar are formed, pincers tooth body is rectangular block, tooth body is by clamping the wall body that inwall that tooth body extends is the thread form of inner circle arc, the inwall of tooth body there is locking teeth structure, the outwardly rectangular block structured fixed block in middle part of one side of pincers tooth body, fixed block runs through the side be connected with fixed block of pincers tooth body, the fixed block of pincers tooth body connects circular coupling bar, tooth body and circular coupling bar lay respectively in pincers tooth body, outer both sides, the center line of circular coupling bar and the center line of pincers tooth are on the same line, there is annular anchoring groove the outer end of circular coupling bar, slide block is rectangular block structure, one side of slide block middle part have recessed rising as high as the banks, the side at the recessed recessed place of rising as high as the banks running through slide block of rising as high as the banks, slide block there is the circular attachment hole being connected and fixed pincers tooth, the aperture of circular attachment hole is in recessed groove bottom of rising as high as the banks, the center line of circular attachment hole and the center line of slide block are on the same line, distance between recessed two groove sides of rising as high as the banks is corresponding identical with the width of the fixed block of pincers tooth body, the recessed degree of depth of rising as high as the banks is corresponding identical with the thickness of the fixed block of pincers tooth body, slide block there is the positioning screwn through hole of two socket caps, the positioning screwn through hole of two socket caps lays respectively at the both sides of circular attachment hole and communicates with circular attachment hole respectively, the center line of the positioning screw hole of two socket caps point-blank, the vertical and intersectant centerline of its center line and circular attachment hole, internal thread is had in the positioning screw hole of socket cap, slide block there is the box hole of the pin thread connecting piston rod, box hole is the attachment hole of pin thread, it is circular hole, the center line in the box hole of its slide block and the center line of slide block are on the same line, slide block there are two spring pin holes, two spring pin holes lay respectively at the both sides in box hole and communicate with box hole respectively, the center line of two spring pin holes point-blank, the vertical and intersectant centerline in its center line and box hole, slide block there are two positioning holes, two positioning holes lay respectively at the both sides of the plane at the center line of the center line of circular attachment hole and the positioning screw hole of two socket caps and the center line place of two spring pin holes, the center line of two positioning holes on the same line, its center line is perpendicular to the plane at the center line of circular attachment hole and the center line of the positioning screw hole of two socket caps and the center line place of two spring pin holes, linking springs pin (26) is installed in two spring pin holes on slide block respectively, internal diameter and the degree of depth of the external diameter of circular coupling bar and length and circular attachment hole are corresponding identical, the circular coupling bar of its pincers tooth injects in the circular attachment hole of its slide block and matches like this, the fixed block of pincers tooth body sandwich a side of slide block middle part recessed rise as high as the banks in match, the positioning screwn of socket cap is injected respectively in the positioning screw hole of two socket caps of slide block, make to screw between the outside thread of the rear end of the positioning screwn of socket cap and the internal thread of the positioning screw hole of socket cap to be connected, be connected with the annular anchoring groove of circular coupling bar in the annular anchoring groove that the front end of the positioning screwn of socket cap puts in circular coupling bar, the positioning screwn of socket cap is clamped and blocks circular coupling bar, thus realize being locked circular coupling bar, the specification of pincers tooth assembly refers to the internal diameter specification clamping tooth assembly, the internal diameter specification of the inwall of the inner circle arc of the wall body of the thread form that the pincers tooth body namely clamping tooth assembly extends.Like this, piston rod is put in the hole in the middle of side door (5), piston rod connects positioning sliding block (6), positioning sliding block there is piston rod connecting through hole, its piston rod connecting through hole longitudinally penetrates positioning sliding block body, the center line of piston rod connecting through hole and the center line of positioning sliding block are on the same line, positioning sliding block there is the positioning screwn through hole of two socket caps, the positioning screwn through hole of two socket cap lays respectively at the both sides of piston rod connecting through hole and communicates with piston rod attachment hole, be internal thread in the positioning screwn through hole of socket cap, the center line of the positioning screwn through hole of socket cap and the vertical and intersectant centerline of piston rod connecting through hole, install in the positioning screwn through hole of socket cap and connect positioning screwn (35), the front end of positioning screwn puts in the pin attachment hole of piston rod, the outside thread of positioning screwn rear end screws with the positioning screwn through hole internal thread of socket cap and is connected, positioning sliding block is made to be fixedly connected on piston rod, piston and piston rod are inserted in cylinder barrel, internal thread in the central through bore of the male thread on the leading portion of the body of screw mandrel and piston and the blind hole of the connection wire rod of piston rod that links together screws and is connected, cylinder cap stuffing box gland connects the back segment of the body of screw mandrel, the seal arrangement of oil hydraulic cylinder comprises sealing between the back segment of the body of cylinder cap and screw mandrel and the sealing between cylinder cap and cylinder barrel and the sealing between side door and cylinder barrel, sealing between piston rod and side door, sealing between piston rod and side door is divided into two-part, a part is sealed well pressure, a part is the oil pressure that sealing hydraulic control produces, twice sealing mechanism is between this two department, for making the sealing at this place very reliable, there is the seal ring of multiple structure, and the auxiliary seal of middle O-ring seals, side door itself is connected with housing by side door bolt (25), side door is positioned at outside the side through hole of housing, cylinder cap and cylinder barrel are fixed together by cylinder barrel bolt and side door, piston rod and positioning sliding block put in the side through hole of housing, and the sealing between side door and cylinder barrel adopts y-shaped ring to realize two way sealed, the sealing mechanism of rotary type reducing oil pipe binding clasp comprises the sealing of the seal arrangement of oil hydraulic cylinder and the sealing between side door and housing and oil circuit and the sealing of housing and housing lid, two oil circuit holes are had in the body of housing, one oil circuit hole collar extension of its housing is positioned at outside housing front, internal orifice is two, it lays respectively at the outside of housing two side through hole, the specification in oil circuit aperture of the oil circuit hole two internal orifice side door that be connected corresponding to it is respectively identical, link position is corresponding, and its oil circuit hole collar extension is fixedly connected with port connection, another oil circuit hole collar extension of its housing is also positioned at outside housing front, internal orifice is two, it lays respectively at the outside of housing two side through hole, the specification in oil circuit aperture of the oil circuit hole two internal orifice side door that be connected corresponding to it is respectively identical, link position is corresponding, and its oil circuit hole collar extension is fixedly connected with port connection, have an oil circuit hole in cylinder cap body, cylinder cap body is pierced in all side of being connected corresponding to cylinder barrel inside cylinder cap, its oil circuit hole, and centre passes inside cylinder cap, cylinder barrel has an oil circuit hole, the oil circuit aperture, all sides in cylinder cap oil circuit hole connects with an oil circuit orifice sealing in the oil circuit hole of cylinder barrel, oil circuit aperture in the middle of the inner side in cylinder cap oil circuit hole is led in cylinder barrel, its side door has two oil circuit holes of crossing side door, the two oil circuit apertures in an oil circuit hole of side door seal with another oil circuit hole in the oil circuit hole of cylinder barrel and the oil circuit hole of housing respectively and interlink, and another oil circuit hole of side door and another oil circuit hole of housing seal and interlink and lead in cylinder barrel.Its each parts are successively installed connection according to program respectively and are completed, and all have rubber seal to connect between each interface in oil circuit hole, it forms the oil circuit of independent completion sealing.The sealing of the sealing between each interface in hole, sealed packet oil scraper road of oil circuit and the oil circuit hole collar extension of port connection and housing; The left and right symmetry of structure of rotary type reducing oil pipe binding clasp, connects piston rod and positioning sliding block in the left and right sides through hole of housing respectively.Rotating disk (36) is cirque structure, the central through bore of rotating disk is vertical circular hole, the center line of the central through bore of rotating disk and the center line of rotating disk are on the same line, the body of the rotating disk in the outside of the central through bore of rotating disk there are six side through hole, the body of rotating disk and the wall body of rotating disk, its side through hole (28) is cross through hole, side through hole communicates with central through bore, side through hole is on the wall body of rotating disk, the i.e. wall body of side through hole lateral penetration rotating disk, the center line of side through hole and the vertical and intersectant centerline of rotating disk, six side through hole are uniformly distributed on the wall body of rotating disk, namely the angle that the center line of each two adjacent side through hole is crossing is identical, six side through hole on rotating disk arrange in pairs, namely two relative side through hole form a pair side through hole, the center line of its same two side through hole to side through hole on the same line, form the structure of three pairs of side through hole, the center line of six side through hole at grade, its side through hole connects two relative spring pin holes respectively, be connected to the center line of two the relative spring pin holes on the through hole of the same side on the same line, the center line of two spring pin hole and the centerline parallel of rotating disk, and be connected the vertical and intersectant centerline of side through hole of two spring pin hole, two spring pin holes communicate with side through hole respectively, the aperture of an one spring pin hole (30) is positioned on a side of rotating disk, the aperture of another spring pin hole is positioned on the another side of rotating disk, installs linking springs pin (14) in two spring pin holes respectively, rotating disk wall body on have six positioning holes, the aperture of positioning hole (29) be positioned at rotating disk wall body perisporium on, the center line of positioning hole and the vertical and intersectant centerline of rotating disk, the center line of each positioning hole on the perisporium of the wall body of rotating disk at grade, positioning hole on rotating disk is corresponding with the side through hole on rotating disk, quantity is identical, six positioning holes are uniformly distributed on the wall body of rotating disk, namely the angle that the center line of each two adjacent positioning holes is crossing is identical, its angle intersected is identical with the angle that the center line of adjacent two side through hole intersects, six positioning holes on rotating disk arrange in pairs, namely two relative positioning holes form a pair positioning hole, its center line with two positioning holes of a pair positioning hole on the same line, form the structure of three pairs of positioning holes, the perisporium of one sidewall bodies of the side through hole of rotating disk is machined into driven gear, this side is referred to as the outside of rotating disk, one side of the adjacent driven gear of rotating disk is referred to as the outer side surface of rotating disk, the another side of rotating disk is referred to as inner side surface, the center line of driven gear and the center line of rotating disk are on the same line, inside and outside two sides of rotating disk there is respectively the annular groove around central through bore, two annular groove specification is identical, on the same line, the center line of its center line and rotating disk on the same line for the center line of two annular grooves, the perisporium of the wall body of the opposite side of the side through hole of rotating disk there is the side ring connected in star around central through bore, the center line of its side ring connected in star and the center line of rotating disk are on the same line, connection clamp tooth assembly is installed in each side through hole of rotating disk respectively, namely clamping tooth assembly is installed and connected in the side through hole of rotating disk, pincers tooth assembly is put in the side through hole of rotating disk, pincers tooth assembly in the side through hole of rotating disk arranges in pairs, namely two relative pincers tooth assemblies form a pair pincers tooth assembly, and it is one group of pincers tooth assembly with a pair pincers tooth assembly, the outer wall of the pincers tooth slide block of its pincers tooth assembly coordinates the inwall of side through hole, and the box hole of the slide block of pincers tooth assembly is outside rotating disk.Rotating disk is installed and connected in the main through hole of housing, in rotating disk, side ring connected in star on annular groove on outer two sides and the perisporium of rotating disk is installed respectively and is connected some steel balls, in the annular groove of the steel ball one part sphere that annular groove on the inner side surface of rotating disk connects on inner side surface, the steel ball (11) that annular groove on the inner side surface of rotating disk connects leans on the inner bottom surface at the bottom of ring of housing is tangent, in the annular groove of the steel ball one part sphere that the side ring connected in star of the perisporium of rotating disk connects on inner side surface, the steel ball of the side ring connected in star connection of the perisporium of rotating disk and the main through hole inner circle wall of housing are mutually by connecting, in the annular groove of the steel ball one part sphere that annular groove on the outer side surface of rotating disk connects on outer side surface, the ring inner side surface of the step of the steel ball that the annular groove on the outer side surface of rotating disk connects and housing lid is tangent to be leaned on, housing lid is fixedly connected with housing, namely housing lid and housing is fastenedly connected with bolt by the connecting through hole of housing lid and the blind hole that connects of housing, rotating disk and housing are located, namely the center line of the center line of rotating disk and housing on the same line, the center line of the side through hole of housing is in the plane at the place of the center line of six side through hole of rotating disk, pincers tooth assembly and piston rod contraposition, namely the center line in the box hole of the slide block of each pincers tooth assembly at grade, the center line in box hole of the slide block of its pincers tooth assembly and the vertical and intersectant centerline of housing, the center line of piston rod is in the plane at the place of the center line in the box hole of the slide block of each pincers tooth assembly, the center line of fixing slide block and the center line of piston rod are on the same line, piston rod is located with pincers tooth assembly and is also comprised, in the positioning hole of the pin jacking rotating disk of the spring pin on housing, behind its rotating disk location, a pair pincers tooth assembly is had to be positioned at two piston rod middles, this becomes a pair pincers tooth assembly in place when rotating disk is located to pincers tooth assembly, and the center line in the box hole of the slide block of its a pair pincers tooth assembly in place and the center line of two piston rods are on the same line, the center line of two spring pin holes of its correspondence on the both sides rotating disk of the center line of two positioning holes of slide block and pincers tooth assembly and the center line of rotating disk are at grade, in the plane at the center line place of each positioning hole of center line on rotating disk perisporium of the spring pin on housing.Transmission device comprises driving gear and driven gear; Meshingly to be connected with the tooth of driven gear on rotating disk is mutual in the main through hole that the tooth of driving gear puts in housing, the center line of driving gear and the centerline parallel of housing, the head of the axle of driving gear exposes housing, and the head of its axle pierces in the side through hole of housing lid.Positioning device comprises spring pin on housing and the corresponding positioning hole on rotating disk perisporium, be installed and connected in the positioning hole of the spring pin in the spring pin through hole on rotating disk and corresponding slide block, be installed and connected in the groove of spring pin in the spring pin through hole on slide block and piston rod pin thread, the side through hole of the positioning sliding block on piston rod and the side through hole of housing and rotating disk, the specification of its pincers tooth assembly of same group is identical, the specification of the pincers tooth assembly of different group is not identical, its respectively group pincers tooth assembly the corresponding specification of mating that adapts with the oil pipe of different size is set respectively, like this, each group of pincers tooth assembly each Self Matching its adapt to the oil pipe of specification, the shell of the spring pin on its housing there is latch through hole, the center line of its latch through hole and the central axis of shell, the pin of the spring pin on housing has latch attachment hole, the central axis of the center line of its latch attachment hole and the pin of spring pin, be equipped with latch, when the pin of spring pin is by spring pressure stretch and in the positioning hole putting in rotating disk completely, latch is injected in the latch attachment hole of the pin of latch through hole on the shell of spring pin and spring pin, to make between the shell of its spring pin and the pin of spring pin fixing.The head of the axle of driving gear protrudes from outside housing lid, housing lid is installed and connects dial, it is placed on the head of the axle of driving gear, dial is carved with the numeral of three kinds of specifications of the pincers tooth assembly that rotary type reducing oil pipe binding clasp is equipped, the head of its axle is installed and is connected pointer (33), by pointer and dial, to show the specification of pincers tooth assembly one group of pincers tooth assembly whether in place and in place.Port connection is tightly connected the hydraulic oil pipeline of hydraulic system.In the whole working procedure of rotary type reducing oil pipe binding clasp, rotary type reducing oil pipe binding clasp has four positioning states, the i.e. location of rotating disk, the slips assembly of the positioning sliding block of piston rod or pincers tooth assembly lower second time location in working order, piston rod is located by connecting with pincers tooth assembly, rotating disk and the location of clamping tooth assembly, in the whole working stroke of piston, first move ahead in process at piston, piston rod head stretches out the side through hole of housing together with the part of positioning sliding block, positioning sliding block is connected in the side through hole of housing and the side through hole of rotating disk, thus realize secondary location, piston rod head puts in the box hole of the slide block of pincers tooth assembly simultaneously, the pin clinching of the spring pin of the slide block of pincers tooth assembly enters in the annular groove of piston rod head, realize piston rod and clamp being located by connecting of tooth assembly, in piston retracts process, the pin clinching of the spring pin of rotating disk enters to clamp in the positioning hole of the slide block of tooth assembly, realizes rotating disk and the location of clamping tooth assembly, and meanwhile, piston rod is separated with pincers tooth assembly, and piston rod head is retracted in the side through hole of housing together with positioning sliding block.In the working procedure of rotary type reducing oil pipe binding clasp, comprise working state during dial rotation, working state when rotary type reducing oil pipe binding clasp loosens, the working state during clamping of rotary type reducing oil pipe binding clasp, during working state when dial rotation or when rotary type reducing oil pipe binding clasp loosens, its piston rod head is retracted in the side through hole of housing together with positioning sliding block, piston rod is separated with rotating disk, the pin of each spring pin of rotating disk respectively clinching enters to clamp in the positioning hole of the slide block of tooth assembly, each pincers tooth assembly is positioned in the side through hole of each correspondence of rotating disk respectively, during working state when rotary type reducing oil pipe binding clasp clamps, the pin of the spring pin on its housing is also put in a positioning hole of rotating disk by spring pressure stretch completely, piston rod head stretches out the side through hole of housing together with the part of positioning sliding block, it puts in the side through hole of rotating disk, positioning sliding block is connected in the side through hole of housing and the side through hole of rotating disk, piston rod head puts in the box hole of the slide block of one group of pincers tooth assembly in place simultaneously, the pin clinching of the spring pin of the slide block of pincers tooth assembly enters in the annular groove of piston rod head, and other each pincers tooth assembly is positioned in the side through hole of each correspondence of rotating disk respectively.Rotary type reducing oil pipe binding clasp adopts hydraulic driving, namely when hydraulic control system high pressure oil enters cylinder barrel closedown chamber, left and right, promote in place about one group of piston driving to clamp tooth assembly and move respectively to well head center along case side through hole, realize clamping oil pipe (34), when high pressure oil enters cylinder barrel unlatching chamber, left and right, promote in place about one group of piston driving and clamp tooth assembly to leaving the motion of well head central direction, unclamp oil pipe, the switch of pincers tooth assembly is controlled by the selector valve of hydraulic system.Rotary type reducing oil pipe binding clasp is equipped with hand handle, there is outer-hexagonal structure one end of hand handle, the interior hexagonal structure of the specification of outer-hexagonal structure of its hand handle and the head of the axle of driving gear matches, thus matches when the outer-hexagonal structure of hand handle is inserted in the interior hexagonal structure of the head of the axle of driving gear; Like this, rotary type reducing oil pipe binding clasp is installed in the apparatus for work of oil and gas wellhead lower oil tube, when the external diameter of the oil pipe removed changes, use handle rotation driving gear, make dial rotation, change one group of pincers tooth assembly in place, adapt a group of mating of choice for use and the external diameter specification of the oil pipe of required clamping clamps tooth assembly, and a group of mating of making to adapt with the external diameter specification of the oil pipe of required clamping clamps the use in place of tooth assembly, make it adapt to oil pipe that external diameter there occurs change.

Claims

1. a swinging reducing oil pipe binding clasp, swinging reducing oil pipe binding clasp is the utensil of the clamping oil pipe used in oil gas field shaft mouth operation, and it adopts hydraulic-driven, swinging reducing oil pipe binding clasp comprises shell, hydraulic cylinder, slips assembly or pincers tooth assembly, side door, side door bolt, rotating disk, transmission device, positioner and steel ball, port connection, spring catch, and swinging reducing oil pipe binding clasp also comprises sealing mechanism, swinging reducing oil pipe binding clasp is bilateral symmetry, and namely its left side structure is identical with the specification framework of right side structure and symmetrical, spring catch comprises shell, spring, pin, its shell comprises housing, the fastening structure of case lid and case lid and housing, Hermetical connecting structure, housing comprises body and flange arrangement, body is rectangular structure, the center of body is the main through hole of hollow circular configuration, the center line of main through hole and the center line of housing are on the same line, inside chime rings shape structure on the internal perisporium of one end of main through hole, it is at the bottom of the annular of body, the center line of the center hole at the bottom of the annular of body and the center line of housing are on the same line, inner face at the bottom of the annular of body is the plane of cirque structure, the other end of main through hole is referred to as outer end, uniform multiple connection blind hole on its body of the outer circumferential side of the outer end of main through hole is internal thread in its blind hole, the center line of blind hole and the centerline parallel of housing, body has two side through hole, and two side through hole communicate with main through hole respectively, and a side through hole is positioned at main through hole side, and another side through hole is positioned at main through hole opposite side, the center line of two side through hole on the same line and with the vertical and intersectant centerline of main through hole, outside at the bottom of the annular of body is flange arrangement, and on the same line, the middle circular hole at the bottom of the intermediate throughholes of flange arrangement and the annular of body interlinks for the center line of flange arrangement and the center line of main through hole, and the lateral surface of flange arrangement has the groove of annular, case lid comprises lid body, step, flange arrangement, side through hole, connecting through hole, lid body is cirque structure, it is round tube hole in the middle of lid body, the side of lid body is the step of outwardly cirque structure, round tube hole in the middle of step and the round tube hole in the middle of lid body interlink, the opposite side of lid body is flange arrangement, the round tube hole of the through hole of the centre of flange arrangement and the centre of lid body interlinks, step and lid body, the center line of flange arrangement is on the same line, the lateral surface of flange arrangement has the groove of annular, there is a side through hole all sides of the round tube hole of the centre of lid body, all sides of the round tube hole of the centre of lid body are uniformly distributed multiple connecting through hole, hydraulic cylinder comprises cylinder barrel and cylinder cap, piston and piston rod, screw mandrel, cylinder barrel bolt and sealing device, piston rod is fixedly connected on the side of piston, piston rod has the blind hole of connection wire rod, the blind hole of connection wire rod and the central through hole of piston interlink, the blind hole of connection wire rod and the central through hole of piston and piston rod, the center line of piston is on the same line, internal thread is had in the central through hole of piston and the blind hole of connection wire rod that links together, screw mandrel comprises body and step, body is circular pin, the step of the outwardly annular of the intermediate peripheral wall of body, its step separates the body of screw mandrel leading portion and back segment, the external diameter of leading portion is less than the external diameter of back segment,The leading portion of body there is male thread, swinging reducing oil pipe binding clasp equipment many groups slips assembly or the many group pincers tooth assemblies of equipment, the specification of the pincers tooth assembly of its identical or same group of slips assembly specification of same group is identical, and the specification of the pincers tooth assembly of not identical or different group of the slips assembly specification of different group is not identical, when swinging reducing oil pipe binding clasp equipment many groups slips assembly, the slips assembly of its equipment comprises slip spider, slip insert, slip spider and slip insert are interconnected, adopt direct fixed connection structure between slip spider and slip insert or adopt the dog screw fixed connection structure by socket cap, when adopting direct fixed connection structure between slip spider and slip insert, not by other component between slip spider and slip insert, slip spider is directly fixedly connected with mutually with slip insert, and slips assembly is as a whole, when adopting the dog screw fixed connection structure by socket cap between slip spider and slip insert, slips assembly comprises the dog screw also comprising socket cap, and there is external screw thread the rear end of the dog screw of socket cap, slip spider has inner circle arcuate structure, inner circle arcuate structure has circular connecting hole, the center line of the circular connecting hole of its slip spider and the center line of slip spider are on the same line, slip spider has the positioning screw hole of two socket caps, the positioning screw hole of two socket caps lays respectively at the both sides of circular connecting hole and communicates with circular connecting hole respectively, the center line of the positioning screw hole of two socket caps is point-blank, its center line and the vertical and intersectant centerline of circular connecting hole, have internal thread in the positioning screw hole of socket cap, the center line of the positioning screw hole of two socket caps and the center line of slip spider and two spring pin holes is in same plane, slip insert is circular arc sheet, in its slip insert has, outer two wall side faces, a wall is inner circle arc side face, it is referred to as inwall side face, another wall side face is cylindrical arc side face, it is referred to as outer wall side face, its inwall side face there is locking teeth structure, outwardly circular coupling bar on outer wall side face, locking teeth structure and circular coupling bar lay respectively in the body of slip insert, outside, the center line of circular coupling bar and the center line of slip insert are point-blank, there is annular anchoring groove the outer end of circular coupling bar, the external diameter of circular coupling bar and length are corresponding identical with internal diameter and the degree of depth of circular connecting hole, the circular coupling bar of its slip insert injects in the circular connecting hole of its slip spider and matches like this, the inwall side face of the outer wall side face of slip insert and the inner circle arcuate structure of slip spider is mutually by even, the dog screw of socket cap is injected respectively in the positioning screw hole of two socket caps on slip spider, make to screw between the external screw thread of rear end of the dog screw of socket cap and the internal thread of the positioning screw hole of socket cap to be connected, the annular anchoring groove annular anchoring groove that is interior and circular coupling bar that the front end of the dog screw of socket cap puts in circular coupling bar is connected, the dog screw of two socket caps is made to clamp and block circular coupling bar, thus realize the circular coupling bar that is locked, the specification of slips assembly refers to the internal diameter specification of slips assembly, the i.e. internal diameter specification of the inwall side face of the slip insert of slips assembly, when the many group pincers tooth assemblies of swinging reducing oil pipe binding clasp equipment, pincers tooth assembly of its equipment comprises slide block and the dog screw of pincers tooth and socket cap, pincers tooth by clamp tooth body,Tooth body and circular coupling bar are formed, pincers tooth body is rectangular block, tooth body is by clamping the wall body that the inwall that tooth body extends is the thread form of inner circle arc, the inwall of tooth body has locking teeth structure, the outwardly rectangular block structured fixed block in middle part of the one side of pincers tooth body, fixed block runs through the side being connected with fixed block of pincers tooth body, the fixed block of pincers tooth body connects circular coupling bar, on the same line, there is annular anchoring groove the outer end of circular coupling bar for the center line of circular coupling bar and the center line of pincers tooth, slide block is rectangular block structure, the one side of slide block middle part have recessed rising as high as the banks, the side at the recessed recessed place of rising as high as the banks running through slide block of rising as high as the banks, slide block has the circular connecting hole being connected and fixed pincers tooth, the aperture of circular connecting hole is in the recessed groove bottom risen as high as the banks, the center line of circular connecting hole and the center line of slide block are on the same line, distance between the recessed two groove sides risen as high as the banks is corresponding identical with the width of the fixed block of pincers tooth body, the recessed degree of depth risen as high as the banks is corresponding identical with the thickness of the fixed block of pincers tooth body, slide block has the dog screw through hole of two socket caps, the dog screw through hole of two socket caps lays respectively at the both sides of circular connecting hole and communicates with circular connecting hole respectively, the center line of the positioning screw hole of two socket caps is point-blank, the vertical and intersectant centerline of its center line and circular connecting hole, internal thread is had in the positioning screw hole of socket cap, the external diameter of circular coupling bar and length are corresponding identical with internal diameter and the degree of depth of circular connecting hole, circular coupling bar of its pincers tooth injects in the circular connecting hole of its slide block and matches like this, the fixed block of pincers tooth body sandwich the one side of slide block middle part recessed rise as high as the banks in match, the dog screw of socket cap is injected respectively in the positioning screw hole of two socket caps of slide block, make to screw between the external screw thread of rear end of the dog screw of socket cap and the internal thread of the positioning screw hole of socket cap to be connected, the annular anchoring groove annular anchoring groove that is interior and circular coupling bar that the front end of the dog screw of socket cap puts in circular coupling bar is connected, the dog screw of socket cap is made to clamp and block circular coupling bar, thus realize be locked circular coupling bar and pincers tooth, the specification of pincers tooth assembly refers to clamp the internal diameter specification of tooth assembly, the internal diameter specification of the inwall of the inner circle arc of the wall body of the thread form that the pincers tooth body namely clamping tooth assembly extends, piston and piston rod are inserted in cylinder barrel, internal thread in the central through hole of the male thread on the leading portion of the body of screw mandrel and piston and the blind hole of the connection wire rod of piston rod that links together screws and is connected, cylinder cap sealing shroud connects the back segment of the body of screw mandrel, the sealing device of hydraulic cylinder comprises the sealing between the back segment of the body of cylinder cap and screw mandrel and the sealing between cylinder cap and cylinder barrel and the sealing between side door and cylinder barrel, sealing between piston rod and side door, sealing between piston rod and side door is divided into two parts, a part is sealed well pressure, a part is the oil pressure that sealing hydraulic control produces, twice sealing mechanism is between this two department, for making the sealing at this place very reliable, there is the sealing ring of multiplet, and the auxiliary seal of middle O-ring seals, side door itself is connected with housing by side door bolt, and side door is positioned at outside the side through hole of housing, and cylinder cap and cylinder barrel are fixed together by cylinder barrel bolt and side door,Piston rod and positioning sliding block put in the side through hole of housing, and the sealing between side door and cylinder barrel adopts y-shaped ring to realize two way seal, the sealing mechanism of swinging reducing oil pipe binding clasp comprises the sealing of the sealing device of hydraulic cylinder and the sealing between side door and housing and oil circuit and the sealing of housing and case lid, two oil circuit holes are had in the body of housing, one oil circuit hole collar extension is positioned at outside housing front, internal orifice is two, it lays respectively at the outside of housing two side through hole, the specification in oil circuit aperture of the oil circuit hole two internal orifice side door that be connected corresponding to it respectively is identical, link position is corresponding, and the oil circuit hole collar extension of its housing is fixedly connected with port connection, its another oil circuit hole collar extension is also positioned at outside housing front, internal orifice is two, it lays respectively at the outside of housing two side through hole, the specification in oil circuit aperture of the oil circuit hole two internal orifice side door that be connected corresponding to it respectively is identical, link position is corresponding, and the oil circuit hole collar extension of its housing is fixedly connected with port connection, having an oil circuit hole in cylinder cap body, cylinder cap body is pierced into all sides being connected corresponding to cylinder barrel in its oil circuit hole inside cylinder cap, and centre passes inside cylinder cap, cylinder barrel has an oil circuit hole, the oil circuit aperture, all sides in cylinder cap oil circuit hole connects with an oil circuit orifice sealing in the oil circuit hole of cylinder barrel, the oil circuit aperture that in cylinder cap, the inner side in oil circuit hole is middle is led in cylinder barrel, two oil circuit holes crossing side door are had in its side door, the two oil circuit apertures in an oil circuit hole of side door another oil circuit aperture in oil circuit hole and the oil circuit orifice sealing of housing with cylinder barrel are connected respectively, and another oil circuit hole of side door and another oil circuit hole sealing of housing interlink and lead in cylinder barrel, its each parts are successively installed connection according to program respectively and are completed, and all have rubber seal to connect between each interface in oil circuit hole, and it forms the oil circuit of independent completion sealing, sealing between each interface in hole, sealed packet oil scraper road of oil circuit and the oil circuit hole external tapping of port connection and housing and the sealing of housing, the left and right symmetry of structure of swinging reducing oil pipe binding clasp, connects piston rod and positioning sliding block in the left and right side through hole of housing respectively, port connection is tightly connected the hydraulic oil pipeline of hydraulic system, the switch of slips assembly or pincers tooth assembly is controlled by the reversal valve of hydraulic system, it is characterized in that: its body of all sides, the outer end of the main through hole of the body of housing has driving gear installing hole, driving gear is installed and connected on housing by the driving gear installing hole of housing, housing has spring catch connecting through hole, spring catch connecting through hole installs linking springs pin, spring catch connecting through hole is positioned at the perisporium of housing and penetrates the perisporium of housing, and spring catch is fixedly connected on housing by the spring catch connecting through hole of housing, rotating disk is installed and connected in the main through hole of housing, rotating disk is cirque structure, the central through hole of rotating disk is vertical circular hole, the body of the rotating disk in the outside of the central through hole of rotating disk has multiple side through hole, the body of rotating disk and the wall body of rotating disk, its side through hole is cross through hole, side through hole communicates with central through hole, side through hole is on the outer wall of rotating disk, the i.e. wall body of side through hole lateral penetration rotating disk, multiple side through hole on rotating disk arrange in pairs, namely two relative side through hole form a pair side through hole, the center line of its same two side through hole to side through hole is on the same line, form the structure of multipair side through hole, the center line of multiple side through hole is at grade,Its side through hole connects relative two spring pin hole respectively, two spring pin holes communicate with side through hole respectively, the aperture of one spring pin hole is positioned on the one side of rotating disk, and the aperture of another spring pin hole is positioned on the another side of rotating disk, installs linking springs pin respectively in two spring pin holes; The wall body of rotating disk has multiple locating hole, the aperture of locating hole be positioned at rotating disk wall body perisporium on; Installing respectively in each side through hole of rotating disk and connect slips assembly or pincers tooth assembly, namely slips assembly or pincers tooth assembly are installed and connected in the side through hole of rotating disk; The slips assembly or the pincers tooth assembly that are positioned at the side through hole of rotating disk arrange in pairs, namely two relative slips assemblies or two relative pincers tooth assemblies form a pair slips assembly or a pair pincers tooth assembly, and it is one group of slips assembly or one group of pincers tooth assembly with a pair slips assembly or with a pair pincers tooth assembly; When equipping slips assembly, the slip spider of the slips assembly of its equipment has the box hole of the pin thread connecting piston rod, slip spider has two spring pin holes, two spring pin holes lay respectively at the both sides in box hole and communicate with box hole respectively, install linking springs pin respectively in two spring pin holes of slip spider; When equipping pincers tooth assembly, the slide block of the pincers tooth assembly of its equipment has the box hole of the pin thread connecting piston rod, slide block has two spring pin holes, two spring pin holes lay respectively at the both sides in box hole and communicate with box hole respectively, install linking springs pin respectively in two spring pin holes on slide block; The top of the outer end of the side through hole putting in housing of piston rod comprises the pin thread of head; Being machined into driven gear on the perisporium of the wall body of the side of the side through hole of rotating disk, transmission device comprises driving gear and driven gear; The tooth of driving gear puts in the main through hole of housing and mutual with the tooth of driven gear on rotating disk meshing is connected, and the head of the axle of driving gear exposes housing, and the head of its axle pierces in the side through hole of case lid.

2. rotary type reducing oil pipe binding clasp according to claim 1, it is characterized in that: the outer wall of the outer wall of the slip spider of its slips assembly or the pincers tooth slide block of pincers tooth assembly coordinates the inwall of side through hole, and the box hole of the box hole of the slip spider of slips assembly or the slide block of pincers tooth assembly is outside rotating disk, the center line of the central through bore of rotating disk and the center line of rotating disk are on the same line, the center line of side through hole and the vertical and intersectant centerline of rotating disk, multiple side through hole is uniformly distributed on the wall body of rotating disk, namely the angle that the center line of each two adjacent side through hole is crossing is identical, be connected to the center line of two the relative spring pin holes on the through hole of the same side on the same line, the center line of two spring pin hole and the centerline parallel of rotating disk, and be connected the side through hole vertical and intersectant centerline of two spring pin hole, the center line of positioning hole and the vertical and intersectant centerline of rotating disk, the center line of each positioning hole on the wall body of rotating disk at grade, positioning hole on rotating disk is corresponding with the side through hole on rotating disk, quantity is identical, multiple positioning hole be uniformly distributed in rotating disk wall body on, namely the angle that the center line of each two adjacent positioning holes is crossing is identical, its angle intersected is identical with the angle that the center line of adjacent two side through hole intersects, multiple positioning holes on rotating disk arrange in pairs, namely two relative positioning holes form a pair positioning hole, its center line with two positioning holes of a pair positioning hole on the same line, form the structure of multipair positioning hole, the perisporium of the wall body of the side of the side through hole of rotating disk is machined into driven gear, this side is referred to as the outside of rotating disk, one side of the adjacent driven gear of rotating disk is referred to as the outer side surface of rotating disk, the another side of rotating disk is referred to as inner side surface, the center line of driven gear and the center line of rotating disk are on the same line, inside and outside two sides of rotating disk there is respectively the annular groove around central through bore, two annular groove specification is identical, on the same line, the center line of its center line and rotating disk on the same line for the center line of two annular grooves, the perisporium of the wall body of the opposite side of the side through hole of rotating disk there is the side ring connected in star around central through bore, the center line of its side ring connected in star and the center line of rotating disk are on the same line, in rotating disk, side ring connected in star on annular groove on outer two sides and the perisporium of rotating disk installs some steel balls respectively, the inner bottom surface at the bottom of ring of the steel ball that the annular groove on face connects and housing is tangent to be leaned on, in the annular groove of the steel ball one part sphere that the side ring connected in star of the perisporium of rotating disk connects on inner side surface, the steel ball of the side ring connected in star connection of the perisporium of rotating disk and the main through hole inner circle wall of housing are mutually by connecting, in the annular groove of the steel ball one part sphere that annular groove on the outer side surface of rotating disk connects on outer side surface, the ring inner side surface of the step of the steel ball that the annular groove on the outer side surface of rotating disk connects and housing lid is tangent to be leaned on, housing lid is fixedly connected with housing, namely housing lid and housing is fastenedly connected with bolt by the connecting through hole of housing lid and the blind hole that connects of housing, rotating disk and housing are located, namely the center line of the center line of rotating disk and housing on the same line, the center line of the side through hole of housing is in the plane at the place of the center line of multiple side through hole of rotating disk, slips assembly or pincers tooth assembly and piston rod locate, namely the center line in the box hole of the center line in the box hole of the slip spider of each slips assembly or the slide block of each pincers tooth assembly at grade, the center line in box hole of the center line in the box hole of the slip spider of its slips assembly or the slide block of pincers tooth assembly and the vertical and intersectant centerline of housing, in the plane at the place of the center line in the box hole of the slide block of center line in the box hole of the slip spider of each slips assembly of the center line of piston rod or each pincers tooth assembly, the center line of fixing slide block and the center line of piston rod are on the same line, piston rod and slips assembly or clamp tooth assembly and locate and also comprise, in the positioning hole of the pin jacking rotating disk of the spring pin on housing, behind its rotating disk location, a pair slips assembly or pincers tooth assembly is had to be positioned at two piston rod middles, this becomes a pair slips assembly in place or pincers tooth assembly when rotating disk is located to slips assembly or pincers tooth assembly, and the center line in the box hole of the slide block of the box hole of the slip spider of its a pair slips assembly in place or a pair pincers tooth assembly and the center line of two piston rods are on the same line, the center line of two spring pin holes of its correspondence on the both sides rotating disk of the center line of two positioning holes of slip spider or two positioning holes of slide block and slips assembly or pincers tooth assembly and the center line of rotating disk are at grade, in the plane at the center line place of each positioning hole of center line on rotating disk perisporium of the spring pin on housing, the positioning hole of the spring pin in the spring pin through hole that positioning device comprises spring pin on housing and the positioning hole on corresponding rotating disk perisporium, be installed and connected on rotating disk and corresponding slip spider or the positioning hole of slide block, be installed and connected on slip spider spring pin through hole in spring pin or the side through hole of the groove of spring pin in spring pin through hole on slide block and piston rod pin thread, positioning sliding block on piston rod and rotating disk, its respectively group slips assembly or pincers tooth assembly the corresponding specification of mate that adapts with the oil pipe of different size is set respectively, like this, each group slips assembly or respectively organize clamp each Self Matching of tooth assembly its adapt to the oil pipe of specification.

3. rotary type reducing oil pipe binding clasp according to claim 1, it is characterized in that: when rotary type reducing oil pipe binding clasp equipment many groups slips assembly, the box hole of the slip spider of the slips assembly of its equipment is the attachment hole of pin thread, it is circular hole, the center line in the box hole of its slip spider and the center line of slip spider are on the same line, the center line of two spring pin holes point-blank, the vertical and intersectant centerline in its center line and box hole, slip spider there are two positioning holes, two positioning holes lay respectively at the both sides of the plane at the center line of slip spider and the center line place of two spring pin holes, the center line of two positioning holes on the same line, its center line is perpendicular to the plane at the center line of slip spider and the center line place of two spring pin holes, inner circle arcuate structure and box hole lay respectively at the medial and lateral of the pedestal of slip spider.

4. rotary type reducing oil pipe binding clasp according to claim 1, it is characterized in that: when rotary type reducing oil pipe binding clasp equipment many group pincers tooth assembly, the box hole of the slide block of the pincers tooth assembly of its equipment is the attachment hole of pin thread, it is circular hole, the center line in the box hole of its slide block and the center line of slide block are on the same line, the center line of two spring pin holes point-blank, the vertical and intersectant centerline in its center line and box hole, slide block there are two positioning holes, two positioning holes lay respectively at the both sides of the plane at the center line of the center line of circular attachment hole and the positioning screw hole of two socket caps and the center line place of two spring pin holes, the center line of two positioning holes on the same line, its center line is perpendicular to the plane at the center line of circular attachment hole and the center line of the positioning screw hole of two socket caps and the center line place of two spring pin holes, tooth body and circular coupling bar lay respectively at the inside and outside both sides of pincers tooth body.

5. rotary type reducing oil pipe binding clasp according to claim 1, it is characterized in that: the center line of spring pin connecting through hole on its housing and the vertical and intersectant centerline of housing, spring pin is connected with housing seal, comprise two parts, one is being tightly connected of the shell of spring pin and the spring pin connecting through hole of housing, one is being tightly connected of the pin of spring pin and the spring pin connecting through hole of housing, and the pin of spring pin stretches to the main through hole of housing; The shell of the spring pin on its housing there is latch through hole, the center line of its latch through hole and the central axis of shell, the pin of the spring pin on housing has latch attachment hole, the central axis of the center line of its latch attachment hole and the pin of spring pin, be equipped with latch, when the pin of spring pin is by spring pressure stretch and in the positioning hole putting in rotating disk completely, latch is injected in the latch attachment hole of the pin of latch through hole on the shell of spring pin and spring pin, to make between the shell of its spring pin and the pin of spring pin fixing.

6. rotary type reducing oil pipe binding clasp according to claim 1, it is characterized in that: the top putting in the outer end of the side through hole of housing of piston rod also comprises pin attachment hole, pin thread comprises pin thread head and pin thread groove, the annular groove of the center line around piston that pin thread groove is concaved out by the head perisporium of piston rod, on the same line, the center line of its center line and piston on the same line for the center line of pin thread head and pin thread groove and piston rod, pin attachment hole is arranged at the top putting in the outer end of the side through hole of housing of piston rod, the pin center line of attachment hole and the vertical and intersectant centerline of piston rod, and pin attachment hole is between pin thread and piston, and pin thread groove is between pin thread head and pin attachment hole, piston rod packs in the hole in the middle of side door, piston rod connects positioning sliding block, positioning sliding block there is piston rod connecting through hole, its piston rod connecting through hole longitudinally penetrates positioning sliding block body, the center line of piston rod connecting through hole and the center line of positioning sliding block are on the same line, positioning sliding block there is the positioning screwn through hole of two socket caps, the positioning screwn through hole of two socket cap lays respectively at the both sides of piston rod connecting through hole and communicates with piston rod connecting through hole, be internal thread in the positioning screwn through hole of socket cap, the center line of the positioning screwn through hole of socket cap and the vertical and intersectant centerline of piston rod connecting through hole, install in the positioning screwn through hole of socket cap and connect positioning screwn, the front end of positioning screwn puts in the pin attachment hole of piston rod, the outside thread of positioning screwn rear end screws with the positioning screwn through hole internal thread of socket cap and is connected, positioning sliding block is fixedly connected on piston rod.

7. rotary type reducing oil pipe binding clasp according to claim 1, it is characterized in that: the driving gear mounting hole on housing comprises counterbore and axis hole, side channel, counterbore is circular hole, the internal diameter of counterbore is greater than the internal diameter of axis hole, a ledge structure is formed between counterbore inner circle wall and the inner circle wall of axis hole, on the same line, the perisporium of axis hole has and is communicated with the main through hole of body and the side channel of axis hole, the center line of body is respectively perpendicular to two relative groove sides of side channel for the center line of counterbore and axis hole, driving gear comprises gear disk and axle, install in side channel and connect gear disk, there is axle connecting through hole the centre of gear disk, axle connecting through hole is square hole, the axle of driving gear is made up of four parts, i.e. columniform head, the top of its head there is interior hexagonal structure, the afterbody of cylindrical structural, the middle part of cube structure, its external diameter be connected between head and middle part is greater than the cylindrical structural of the external diameter of head, the axle sleeve of driving gear enters in the axle connecting through hole of gear disk, the afterbody of axle puts in the axis hole that is inserted on housing, the middle part of axle is enclosed within the axle connecting through hole of the centre of gear disk, axle overlaps connected set circle, lasso is circle structure, the cylindrical structural cover connected set circle be connected between head and middle part of the axle of driving gear, lasso is inserted in the counterbore of driving gear mounting hole of housing, lasso respectively and the counterbore of driving gear mounting hole of housing and the cylindrical structural be connected between head and middle part of the axle of driving gear be tightly connected.

8. according to claim 1 or rotary type reducing oil pipe binding clasp according to claim 7, it is characterized in that: the center line of driving gear and the centerline parallel of housing, the internal diameter of the side through hole of all sides of the round tube hole of the centre of the lid body of housing lid equals the external diameter of the head of the axle of driving gear, the head of the axle of driving gear protrudes from outside housing lid, housing lid is installed and connects dial, it is placed on the head of the axle of driving gear, dial is carved with the numeral of the plurality of specifications of slips assembly that rotary type reducing oil pipe binding clasp equips or pincers tooth assembly, the head of its axle is installed and is connected pointer, by pointer and dial, to show the specification of slips assembly or pincers tooth assembly one group of slips assembly whether in place and in place or pincers tooth assembly.

9. according to claim 1 or rotary type reducing oil pipe binding clasp according to claim 7, it is characterized in that: rotary type reducing oil pipe binding clasp is equipped with hand handle, there is outer-hexagonal structure one end of hand handle, the interior hexagonal structure of the specification of outer-hexagonal structure of its hand handle and the head of the axle of driving gear matches, thus matches when the outer-hexagonal structure of hand handle is inserted in the interior hexagonal structure of the head of the axle of driving gear.