CN102278083B - Intelligent casing tongs with back-up tongs - Google Patents
Intelligent casing tongs with back-up tongs Download PDFInfo
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- CN102278083B CN102278083B CN201110187878.7A CN201110187878A CN102278083B CN 102278083 B CN102278083 B CN 102278083B CN 201110187878 A CN201110187878 A CN 201110187878A CN 102278083 B CN102278083 B CN 102278083B
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Abstract
The invention provides intelligent casing tongs with back-up tongs, which comprises a main frame, a hanging frame, main tongs and back-up tongs, wherein the main tongs and the back-up tongs are connected on the main frame; the main tongs are suspended on the hanging frame through a chain, which is connected with the main frame; the back-up tongs are welded with the main frame and supported by two feet; the hanging frame is parallelogram-shaped; a rotary torque measuring device is mounted to the main frame; the main tongs achieve the effect of clamping a casing in a claw climbing manner; the back-up tongs are tightly clamped by three claws; and the claws are distributed in a mode of 120 degrees. The purpose of full-range automation of work of casing tongs is achieved, and the labor intensity of workers and accident incidence are reduced. The parallelogram-shaped hanging frame is adopted to ensure horizontal movement of power tongs. The tooth alignment process is centralized by adjusting a support cylinder. The back-up tongs improve the clamping force of the claws by use of a wedging mechanism. The back-up tongs are flexibly connected with the main tongs and can be detached to be used alone. The types of the claws are changed to fit different tube diameters, so as to increase the application range.
Description
(1) technical field
The present invention relates to oil-well drilling equipment, is exactly a kind of intelligent casing tong with back-up tong specifically.
(2) background technology
The Power Tong that oil well is used is at present controlled greatly the start and stop of Power Tong mainly with manual mode control hydraulicdirectional control valve.The high and low shift control of the switch of safety door and Power Tong is generally also manually controlled by workman.When work, Power Tong is generally suspended in movably overarm by chain and above, moves to sleeve pipe place by workman, and carrys out the contraposition of adjusting sleeve gas thread by workman's vision.Main pincers and back-up tong are often in released state, and main pincers and back-up tong are used in conjunction with inconvenience, have both made to be equipped with back-up tong, the centering that is also connected to realize casing threads by the solid mechanical of main pincers and back-up tong.There is following shortcoming in current casing tong: automaticity is lower, and labor strength is large; Workman too approaches job location, and safety door does not have protective device, and safety guarantee is lower; When work, casing threads contraposition difficulty is larger, easily causes thread gluing, damages tooth, affects work quality; When main pincers and back-up tong are used in conjunction with, device is mobile, sleeve pipe clamping difficulty.
(3) summary of the invention
The object of the present invention is to provide a kind of intelligent casing tong with back-up tong.
The object of the present invention is achieved like this: it is made up of body frame, suspension bracket, main pincers and back-up tong, and main pincers and back-up tong are connected on body frame, and main pincers are suspended in midair on the suspension bracket being connected with body frame by chain, and back-up tong and body frame are welded to connect, and are supported by two footing.
The present invention also has following technical characterictic:
(1) described suspension bracket is parallelogram sturcutre, comprise boatswain chair, upper plate, lower plate, rear cross beam, two front beams, flange and short pins, boatswain chair is enclosed within on two front beams, front beam and upper plate and lower plate chain connection, rear cross beam and upper plate and hanger supports plate chain connection, lower plate and hanger supports plate are realized chain connection by short pin, and shoring one end and crossbeam are hinged, one end and earring seats are hinged, and earring seats is welded on pillar front side.
(2) described body frame middle part is provided with torque measuring device, the torque measurement of Power Tong and the carrying of torque are provided, latch inserts and is welded in the circular hole of the buckle on pillar, one end circle hole sleeve of adaptor is on latch, other end circular hole and torque sensor are realized hinged, the torque sensor other end is articulated on the stern post of main pincers, realize the transmission of torque, lateral bending plate is welded on pillar two bottom sides, back side panel is welded on lateral bending plate rear end, side supporting plate is welded on lateral bending front edge of board, rear carrier plate is welded on pillar rear side, rear plate is welded on the right angle place of rear carrier plate and lateral bending plate composition, after-frame fixed head is welded on rear plate one end, after-frame is connected on after-frame fixed head by bolt, after-frame is used for installing fluid pressure line annex.
(3) described main pincers are realized the clamping to sleeve pipe by the climbing form of claw, after finishing, climbing starts upper shackle process, the power transmission of main pincers adopts stage-geared form, hydraulic motor is arranged on motor base, hydraulic motor drives clutch shaft to rotate by splined shaft, shift fork hydraulic cylinder is connected on upper plate by flange, the earrings of shift fork hydraulic cylinder is connected with shift fork, shift fork is stirred shift fork ring and is moved up and down, in the time that shift fork ring moves to limes superiors position, clutch gear wheel and clutch shaft are realized and are synchronizeed rotation, in the time that shift fork ring moves to limit inferior position, clutch pinion and clutch shaft are realized and are synchronizeed rotation, clutch gear wheel or clutch pinion cog with gear train or gear train lower gear engages, rotate by flat key driven gear group gear shaft, gear train gear shaft and rear idle pulley engaged transmission, rear idle pulley and front idler wheel engaged transmission, front steering wheel and shedding cam meshed transmission gear, shedding cam gear is realized radial support by 14 rollers, claw rotates around claw axle, roller is realized hinged by axle and claw, when shedding cam gear rotates, the roller that claw connects is realized slope climbing movement along cam tooth convex wheel face, after climbing process finishes, claw clamps sleeve pipe, shedding cam tooth has been rotated further the upper shackle action of sleeve pipe.Clip is located by clip spacer and on cam tooth case upper and lower plates periphery, by rotating bolt, is regulated the clamping force between clip and cam tooth case upper and lower plates.The switching of the hydraulic cylinder-controlled brake force pincers of shift fork speed shelves, left safety door is by left-hand door cylinder control folding, left hydraulic cylinder afterbody is arranged on the earrings axle of upper plate, tailpiece of the piston rod earrings is connected on the earrings axle of left safety door, right safety door is with respect to left safety door symmetry, can control folding by right door cylinder, in addition the tailpiece of the piston rod earrings of right door cylinder is hinged with the bar of the rotation of sliding around fixed axis, in addition this bar with synchronize the bar of rotation with door folder and be connected by chute, in the time that right safety door is shut, door dog is on left safety door, realize safeguard protection effect, approach switch is arranged on right safety door, left safety door installation accessories coordinates the shutdown signal that detects safety door with approach switch, approach switch is installed on upper plate, for detection of the opening signal of left and right safety door, encoder component is connected on upper plate, the velocity of rotation of the transmission prototype gear by the gear on it and driver plate, on the balance gear shaft welding on cam tooth case upper plate, be welded with circular arc radar board, approach switch is for detection of the turned position of radar board, backing pin master cylinder is used for promoting ramp, in the time that balance gear shaft rotates, roller carries out slope climbing movement on ramp, thereby the both sides bearing pin of controlling balance gear shaft inserts or exits the arc groove of shedding cam gear, realizing shedding cam gear aims at the opening of cam tooth case upper and lower plates.
(4) described back-up tong adopts three-jaw to clamp, claw becomes 120 ° of distributions, wherein two claws drive by promoting cylinder promotion Xie piece, a claw is arranged on door and is above driven by door cylinder place, promoting cylinder afterbody earrings is connected on earrings axle, promoting cylinder piston rod end is fixedly connected with Xie piece by piston rod attachment, Xie piece one side right angle face slides in side plate one side, the inclined-plane of Xie piece and claw slide block one end in contact, claw slide block keeps radially sliding by two baffle plates, claw on door is inserted into the middle part of door, door rotates around door-hinge, door cylinder is connected on flanged plate, flanged plate can rotate by the bearing pin on it, door cylinder piston rod end earrings is connected on the earrings axle on door, door is closed rear one end and is lived by bolt board, bolt plate holder is between two plates, and slidably, bolt cylinder piston rod earrings is connected on bent plate, promote bent plate and drive bolt plate to slide by bolt cylinder, complete the clamping of door and unclamp, bolt cylinder is connected on flanged plate, lower plate is provided with approach switch near door one end, for detection of the switch situation of door.
The present invention is a kind of intelligent casing tong with back-up tong, has realized the whole-course automation of casing tong work, has reduced workman's labour intensity, has reduced the loss that accident odds and contingency cause.The present invention adopts the hanger structure of parallelogram, utilize the design feature of parallelogram to guarantee moving horizontally of Power Tong, and the righting that realizes sleeve pipe by the adjustment of shoring is to tooth process, has improved the quality of shackle on sleeve pipe.Back-up tong adopts Xie block mechanism to improve the clamping force of claw.Back-up tong and main pincers are for flexibly connecting, and detachable use separately, adapt to different tube diameters by changing claw model, have increased the usage range of establishing.
(4) accompanying drawing explanation
Fig. 1 is unitary side view of the present invention;
Fig. 2 is overall rear elevation of the present invention;
Fig. 3 is integral shaft mapping of the present invention;
Fig. 4 is main pincers interior views of the present invention;
Fig. 5 is main pincers top view of the present invention;
Fig. 6 is main pincers sectional view of the present invention;
Fig. 7 is back-up tong interior views of the present invention.
(5) specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment 1: in conjunction with Fig. 1-Fig. 7, a kind of intelligent casing tong with back-up tong of the present invention, it is made up of body frame, suspension bracket, main pincers (3) and back-up tong (2), main pincers (3) and back-up tong (2) are connected on body frame, main pincers (3) are suspended in midair by chain (4) on the suspension bracket being connected with body frame, back-up tong (2) is welded to connect with body frame, and is supported by two footing (1).
The present invention also has following technical characterictic:
Described suspension bracket is parallelogram sturcutre, comprise boatswain chair (5), upper plate (20), lower plate (10), rear cross beam (19), two front beams (17), the first flange (6), the second flange (16), three-flange (21), the 4th flange (33) and short pin (34), boatswain chair (5) is enclosed within on two front beams (17), front beam (17) and upper plate (20) and lower plate (10) chain connection, rear cross beam (19) and upper plate (20) and hanger supports plate (9) chain connection, lower plate (10) realizes chain connection with hanger supports plate (9) by short pin (34), shoring (7) one end and crossbeam (17) are hinged, one end and earring seats (24) are hinged, earring seats (24) is welded on pillar (11) front side.
Described body frame middle part is provided with torque measuring device, the torque measurement of Power Tong and the carrying of torque are provided, latch (36) inserts and is welded in the circular hole of the buckle (30) on pillar (11), one end circle hole sleeve of adaptor (31) is on latch (36), other end circular hole and torque sensor (32) are realized hinged, the torque sensor other end is articulated on the stern post of main pincers (3), realize the transmission of torque, lateral bending plate (13) is welded on pillar (11) two bottom sides, back side panel (14) is welded on lateral bending plate (13) rear end, side supporting plate is welded on lateral bending plate (13) front end, rear carrier plate (28) is welded on pillar rear side, rear plate (26) is welded on the right angle place of rear carrier plate (28) and lateral bending plate (13) composition, after-frame fixed head (27) is welded on rear plate (26) one end, after-frame (25) is connected on after-frame fixed head (27) by bolt, after-frame (25) is for installing fluid pressure line annex.
Described main pincers are realized the clamping to sleeve pipe by the climbing form of claw, after finishing, climbing starts upper shackle process, the power transmission of main pincers adopts stage-geared form, hydraulic motor (238) is arranged on motor base (231), hydraulic motor (238) drives clutch shaft (230) to rotate by splined shaft, shift fork hydraulic cylinder (239) is connected on upper plate (227) by flange, the earrings of shift fork hydraulic cylinder (239) is connected with shift fork (221), shift fork (221) is stirred shift fork ring (228) and is moved up and down, in the time that shift fork ring (228) moves to limes superiors position, clutch gear wheel (229) and clutch shaft (230) are realized and are synchronizeed rotation, in the time that shift fork ring (228) moves to limit inferior position, clutch pinion (220) and clutch shaft (230) are realized and are synchronizeed rotation, clutch gear wheel (229) or clutch pinion (220) cog with gear train (234) or gear train lower gear (217) engages, rotate by flat key driven gear group gear shaft (216), gear train gear shaft (216) and rear idle pulley (215) engaged transmission, rear idle pulley (215) and front idler wheel (214) engaged transmission, front steering wheel (214) and shedding cam gear (211) engaged transmission, shedding cam gear (211) is realized radial support by 14 rollers (235), claw (208) rotates around claw axle (206), roller (207) is realized hinged by axle (210) and claw (208), when shedding cam gear (211) rotates, the roller (207) that claw (208) connects is realized slope climbing movement along cam tooth convex wheel face, after climbing process finishes, claw (208) clamps sleeve pipe, shedding cam tooth (211) has been rotated further the upper shackle action of sleeve pipe, clip (245) is by clip spacer (212) location and on cam tooth case upper and lower plates (244) periphery, by rotating bolt (247), regulate the clamping force between clip (245) and cam tooth case upper and lower plates (244), shift fork hydraulic cylinder (239) is controlled the switching of Power Tong speed shelves, left safety door (250) is controlled folding by left-hand door cylinder (248), left hydraulic cylinder afterbody is arranged on the earrings axle of upper plate (227), tailpiece of the piston rod earrings is connected on the earrings axle of left safety door (250), right safety door (257) is with respect to left safety door (250) symmetry, can control folding by right door cylinder (260), in addition tailpiece of the piston rod earrings and the bar (258) of right door cylinder (260) are hinged, in two chutes of axle (256) insertion rod (258) on axle (259) and bar (255), bar (255) is synchronizeed rotation with door folder (253), in the time that right safety door is shut, door folder (253) is buckled in left safety door (on 250), realize safeguard protection effect, the first approach switch (252) is arranged on right safety door (257), left safety door (250) installation accessories (251) coordinates with the first approach switch (252) shutdown signal that detects safety door, the second approach switch (249) and the 3rd approach switch (261) are arranged on upper plate (227), for detection of the opening signal of left and right safety door, encoder component (237) is connected on upper plate (227), the velocity of rotation of the transmission prototype gear by the gear on it and driver plate (213), on the balance gear shaft (236) of the upper welding of cam tooth case upper plate (244), be welded with circular arc radar board (263), the 4th approach switch (242) is for detection of the turned position of radar board (263), backing pin master cylinder (240) is for promoting ramp (241), in the time that balance gear shaft (236) rotates, roller (243) carries out slope climbing movement on ramp (241), thereby the both sides bearing pin of controlling balance gear shaft (236) inserts or exits the arc groove of shedding cam gear (211), realizing shedding cam gear (211) aims at the opening of cam tooth case upper and lower plates (244).
Described back-up tong adopts three-jaw to clamp, claw becomes 120 ° of distributions, wherein two claws promote Xie piece (304) driving by promoting cylinder (302), a claw is arranged on door (318) and is above driven by door cylinder (324), promoting cylinder (302) afterbody earrings is connected on earrings axle (329), promoting cylinder (302) tailpiece of the piston rod is fixedly connected with Xie piece (304) by piston rod attachment (303), Xie piece (304) one side right angle faces slide in side plate (325) one side, the inclined-plane of Xie piece (304) and claw slide block (306) one end in contact, claw slide block (306) keeps radially sliding by two baffle plates (326) and (327), claw on door (318) is inserted into the middle part of door, door rotates around door-hinge (320), door cylinder (324) is connected on the first flanged plate (323), flanged plate can rotate by the bearing pin on it, door cylinder (324) tailpiece of the piston rod earrings is connected on the earrings axle (321) on door (320), door (318) is closed rear one end and is blocked by bolt plate (315), bolt plate (315) is clipped between a plate (314) and two plates (311), and slidably, bolt cylinder (312) piston rod earrings is connected on bent plate (310), promote bent plate (310) and drive bolt plate (315) to slide by bolt cylinder (312), complete the clamping of door (318) and unclamp, bolt cylinder (312) is connected on the second flanged plate (309), lower plate is provided with the 5th approach switch (316) near door (318) one end, for detection of the switch situation of door (318).
Embodiment 2: in conjunction with Fig. 1-Fig. 7, the present invention has realized the whole-course automation of the course of work.Shift fork hydraulic cylinder (239) is controlled the switching of Power Tong speed shelves.The switch instances that travel switch detects gear is installed on shift fork hydraulic cylinder (239).Left safety door (250) is controlled folding by left-hand door cylinder (248), and provides pass pressure protect behind the door by left-hand door cylinder (248).Left safety door is arranged on a roller shaft.Left hydraulic cylinder two ends are that earrings connects, and afterbody is arranged on the earrings axle of upper plate (227), and tailpiece of the piston rod earrings is connected on the earrings axle of left safety door (250).Right safety door (257), with respect to left safety door (250) symmetry, can be controlled folding by right door cylinder (260).In addition tailpiece of the piston rod earrings and the bar (258) of right door cylinder (260) are hinged, in the chute of axle (259) insertion rod (258), in the other end chute of axle (256) insertion rod (258) on bar (255).Bar (255) rotates with drive a folder (253) by axle (254).In the time that right safety door is shut, make a folder (253) be buckled in left safety door (250) by the effect of right door cylinder (260), bar (258) and bar (255) upper, realize safeguard protection effect.It is upper that approach switch (252) is arranged on annex (262), and annex (262) is mounted on right safety door (257) by screw.Left safety door (250) installation accessories (251) coordinates with approach switch (252) shutdown signal that detects safety door.Approach switch (249) and approach switch (261) are arranged on upper plate (227), for detection of the opening signal of left and right safety door, encoder component (237) is connected on upper plate (227), the velocity of rotation of the transmission prototype gear by the gear on it and driver plate (213), on the balance gear shaft (236) of the upper welding of cam tooth case upper plate (244), be welded with circular arc radar board (263), the 4th approach switch (242) is for detection of the turned position of radar board (263), backing pin master cylinder (240) is for promoting ramp (241), in the time that balance gear shaft (236) rotates, roller (243) carries out slope climbing movement on ramp (241), thereby the both sides bearing pin of controlling balance gear shaft (236) inserts or exits the arc groove of shedding cam gear (211), realizing shedding cam gear (211) aims at the opening of cam tooth case upper and lower plates (244).
Intelligent operation process of the present invention is: body frame moves to sleeve pipe place, in the time that sleeve pipe enters back-up tong opening part, back-up tong door (318) is closed under Men Gang (324) effect, approach switch (316) detects that door (318) is after fastening position, bolt cylinder (312) effect bolt (315) pins door (318), promote cylinder (302) effect, back-up tong clamps bottom sleeve simultaneously.In the time that back-up tong clamping force reaches certain value, main pincers left-hand door (250) is under left-hand door cylinder (248) effect, and right door (257) is closed under right door cylinder (260) effect.The first approach switch (252) detects after the shutdown signal of left and right door, and backing pin master cylinder (240) effect ramp (241) makes it reach operating position.Shift fork hydraulic cylinder (239) effect shift fork (221) makes transmission be switched to quick shelves, and converts situation by the approach switch detection gear on shift fork hydraulic cylinder (239).Gear is converted to after quick shelves, main pincers motor (238) work, and claw (208) starts to climb and realize the clamping to upper sleeve, and after clamping, the rotation of effect upper sleeve realizes the spinner of sleeve pipe.Now balance backing pin (236) has a down dip in ramp (241) effect, and makes the backing pin of respective direction insert corresponding backing pin hole.Torque sensor (32) detects the raising of torque value and detect that when torque reaches appropriate value and two approach switchs signal is that cam shedding gear (211) is during in meta simultaneously, main pincers motor (238) suspends, shift fork hydraulic cylinder (239) again acts on and is switched to shelves at a slow speed, enter linking closely the stage of large torque, when reaching while suitably linking closely torque, the end of linking closely.Backing pin master cylinder (240) effect ramp (241) position of deactivating, and be switched to quick grade, motor (238) starts reverse rotation, now cam tooth case upper and lower plates (244) rotation relative to cam shedding gear (211), under effect at backing pin after cam tooth case upper and lower plates (244) and opening gear opening are involutory, start synchronous rotary, in the time that two approach switchs detect signal simultaneously, cam tooth case reaches return state, and motor (238) quits work.Back-up tong unclamps bottom sleeve simultaneously, and main pincers and back-up tong door are opened, and in the time that the 3rd approach switch (261), the second approach switch (249) all detect signal, door is opened completely.Casing tong can unload from sleeve pipe, and upper sleeve pipe process finishes.Unload sleeve pipe and upper sleeve pipe similar process, only motor (238) direction of rotation is different.
Claims (3)
1. the intelligent casing tong with back-up tong, it is made up of body frame, suspension bracket, main pincers (3) and back-up tong (2), it is characterized in that: main pincers (3) and back-up tong (2) are connected on body frame, main pincers (3) are suspended on the suspension bracket being connected with body frame by chain (4), back-up tong (2) is welded to connect with body frame, and supported by two footing (1)
Described main pincers are realized the clamping to sleeve pipe by the climbing form of claw, after finishing, climbing starts upper shackle process, the power transmission of main pincers adopts stage-geared form, hydraulic motor (238) is arranged on motor base (231), hydraulic motor (238) drives clutch shaft (230) to rotate by splined shaft, shift fork hydraulic cylinder (239) is connected on upper plate (227) by flange, the earrings of shift fork hydraulic cylinder (239) is connected with shift fork (221), shift fork (221) is stirred shift fork ring (228) and is moved up and down, in the time that shift fork ring (228) moves to limes superiors position, clutch gear wheel (229) and clutch shaft (230) are realized and are synchronizeed rotation, in the time that shift fork ring (228) moves to limit inferior position, clutch pinion (220) and clutch shaft (230) are realized and are synchronizeed rotation, clutch gear wheel (229) or clutch pinion (220) cog with gear train (234) or gear train lower gear (217) engages, rotate by flat key driven gear group gear shaft (216), gear train gear shaft (216) and rear idle pulley (215) engaged transmission, rear idle pulley (215) and front idler wheel (214) engaged transmission, front idler wheel (214) and shedding cam gear (211) engaged transmission, shedding cam gear (211) is realized radial support by 14 rollers (235), claw (208) rotates around claw axle (206), roller (207) is realized hinged by axle (210) and claw (208), when shedding cam gear (211) rotates, the roller (207) that claw (208) connects is realized slope climbing movement along shedding cam gear (211) convex wheel face, after climbing process finishes, claw (208) clamps sleeve pipe, shedding cam gear (211) has been rotated further the upper shackle action of sleeve pipe, clip (245) is by clip spacer (212) location and on cam tooth case upper and lower plates (244) periphery, by rotating bolt (247), regulate the clamping force between clip (245) and cam tooth case upper and lower plates (244), shift fork hydraulic cylinder (239) is controlled the switching of casing tong speed shelves, left safety door (250) is controlled folding by left-hand door cylinder (248), left-hand door cylinder (248) afterbody is arranged on the earrings axle of upper plate (227), the tailpiece of the piston rod earrings of left-hand door cylinder (248) is connected on the earrings axle of left safety door (250), right safety door (257) is with respect to left safety door (250) symmetry, can control folding by right door cylinder (260), in addition tailpiece of the piston rod earrings and the bar (258) of right door cylinder (260) are hinged, in two chutes of axle (256) insertion rod (258) on axle (259) and bar (255), bar (255) is synchronizeed rotation with door folder (253), in the time that right safety door is shut, door folder (253) is buckled on left safety door (250), realize safeguard protection effect, the first approach switch (252) is arranged on right safety door (257), left safety door (250) installation accessories (251) coordinates with the first approach switch (252) shutdown signal that detects safety door, the second approach switch (249) and the 3rd approach switch (261) are arranged on upper plate (227), for detection of the opening signal of left and right safety door, encoder component (237) is connected on upper plate (227), the velocity of rotation of the transmission prototype gear by the gear on it and driver plate (213), on the balance gear shaft (236) of the upper welding of cam tooth case upper plate (244), be welded with circular arc radar board (263), the 4th approach switch (242) is for detection of the turned position of radar board (263), backing pin master cylinder (240) is for promoting ramp (241), in the time that balance gear shaft (236) rotates, roller (243) carries out slope climbing movement on ramp (241), thereby the both sides bearing pin of controlling balance gear shaft (236) inserts or exits the arc groove of shedding cam gear (211), realizing shedding cam gear (211) aims at the opening of cam tooth case upper and lower plates (244).
2. a kind of intelligent casing tong with back-up tong according to claim 1, it is characterized in that: described body frame middle part is provided with torque measuring device, the torque measurement of casing tong and the carrying of torque are provided, latch (36) inserts and is welded in the circular hole of the buckle (30) on pillar (11), one end circle hole sleeve of adaptor (31) is on latch (36), other end circular hole and torque sensor (32) are realized hinged, the torque sensor other end is articulated on the stern post of main pincers (3), realize the transmission of torque, lateral bending plate (13) is welded on pillar (11) two bottom sides, back side panel (14) is welded on lateral bending plate (13) rear end, side supporting plate is welded on lateral bending plate (13) front end, rear carrier plate (28) is welded on pillar rear side, rear plate (26) is welded on the right angle place of rear carrier plate (28) and lateral bending plate (13) composition, after-frame fixed head (27) is welded on rear plate (26) one end, after-frame (25) is connected on after-frame fixed head (27) by bolt, after-frame (25) is for installing fluid pressure line annex.
3. a kind of intelligent casing tong with back-up tong according to claim 1, is characterized in that: described back-up tong adopts three-jaw to clamp, and claw becomes 120
odistribute, wherein two claws promote Xie piece (304) driving by promoting cylinder (302), a claw is arranged on door (318) and is above driven by door cylinder (324), promoting cylinder (302) afterbody earrings is connected on earrings axle (329), promoting cylinder (302) tailpiece of the piston rod is fixedly connected with Xie piece (304) by piston rod attachment (303), Xie piece (304) one side right angle faces slide in side plate (325) one side, the inclined-plane of Xie piece (304) and claw slide block (306) one end in contact, claw slide block (306) keeps radially sliding by the first baffle plate (326) and second baffle (327), claw on door (318) is inserted into the middle part of door, door rotates around door-hinge (320), door cylinder (324) is connected on the first flanged plate (323), the first flanged plate can rotate by the bearing pin on it, door cylinder (324) tailpiece of the piston rod earrings is connected on the earrings axle (321) on door (320), door (318) is closed rear one end and is blocked by bolt plate (315), bolt plate (315) is clipped between a plate (314) and two plates (311), and can slide, bolt cylinder (312) piston rod earrings is connected on bent plate (310), promote bent plate (310) and drive bolt plate (315) to slide by bolt cylinder (312), complete the clamping of door (318) and unclamp, bolt cylinder (312) is connected on the second flanged plate (309), lower plate is provided with the 5th approach switch (316) near door (318) one end, for detection of the switch situation of door (318).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110187878.7A CN102278083B (en) | 2011-07-06 | 2011-07-06 | Intelligent casing tongs with back-up tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110187878.7A CN102278083B (en) | 2011-07-06 | 2011-07-06 | Intelligent casing tongs with back-up tongs |
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| CN102278083A CN102278083A (en) | 2011-12-14 |
| CN102278083B true CN102278083B (en) | 2014-05-21 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632183B (en) * | 2013-11-08 | 2017-08-04 | 中国石油天然气股份有限公司 | Automatic alignment controller of hydraulic power tongs |
| US10392879B2 (en) | 2015-05-28 | 2019-08-27 | Weatherford Technology Holdings, Llc | Tong assembly with torque measurement |
| CN110439486B (en) * | 2018-05-03 | 2021-06-08 | 付蕾 | Ultra-large casing tongs |
| CN108747191B (en) * | 2018-07-13 | 2024-07-30 | 吴钩科技(苏州)有限公司 | Double-driving structure in full-position automatic welding device |
| CN109940556B (en) * | 2019-05-22 | 2019-08-30 | 山东科瑞机械制造有限公司 | A kind of wellhead casing pipe disassemblerassembler |
| CN110725658B (en) * | 2019-10-14 | 2022-05-03 | 中国石油化工股份有限公司 | Radial anchoring inverted-buckling casing taking and replacing device and method |
| CN110984886B (en) * | 2019-11-27 | 2022-04-15 | 如东前进石油机械制造有限公司 | Multifunctional iron roughneck |
| CN112610171B (en) * | 2020-12-24 | 2022-06-21 | 四川宏华石油设备有限公司 | Iron roughneck clamp assembly |
| CN113585989B (en) * | 2021-09-07 | 2023-06-23 | 兰州兰石石油装备工程股份有限公司 | Tube Handling System for Continuous Tripping Drilling Rig |
| CN114320190B (en) * | 2021-12-21 | 2024-07-05 | 中国石油化工股份有限公司 | Intelligent full-electric workover rig |
| CN118728290A (en) * | 2024-06-14 | 2024-10-01 | 江苏如东金友机械有限公司 | Intelligent multi-purpose hydraulic pliers |
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| CN101429856A (en) * | 2008-08-08 | 2009-05-13 | 辽河石油勘探局 | Hydraulic pliers |
| CN201276994Y (en) * | 2008-05-06 | 2009-07-22 | 四川宏华石油设备有限公司 | Novel multifunctional power pliers |
| CN101672168A (en) * | 2009-10-23 | 2010-03-17 | 大庆石油学院 | Workover operation mechanization system replacing well mouth manual operation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7413398B2 (en) * | 2003-04-01 | 2008-08-19 | Mccoy Corporation | Power tong positioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201276994Y (en) * | 2008-05-06 | 2009-07-22 | 四川宏华石油设备有限公司 | Novel multifunctional power pliers |
| CN101429856A (en) * | 2008-08-08 | 2009-05-13 | 辽河石油勘探局 | Hydraulic pliers |
| CN101672168A (en) * | 2009-10-23 | 2010-03-17 | 大庆石油学院 | Workover operation mechanization system replacing well mouth manual operation |
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