CN103643908A

CN103643908A - Hydraulic break-out tongs with screw thread protection function

Info

Publication number: CN103643908A
Application number: CN201310710886.4A
Authority: CN
Inventors: 田宏亮; 凡东; 常江华; 李栋
Original assignee: Xian Research Institute Co Ltd of CCTEG
Current assignee: Xian Research Institute Co Ltd of CCTEG
Priority date: 2013-12-19
Filing date: 2013-12-19
Publication date: 2014-03-19
Anticipated expiration: 2033-12-19
Also published as: CN103643908B

Abstract

The invention discloses a pair of hydraulic break-out tongs with a screw thread protection function, which comprises a bearing 1, a swing arm 2, a slewing support 3, a motor 4, a pedestal 5, a bracing seat 6, a break-out oil cylinder 7, a lifting oil cylinder 8, a bracing arm 9, a pin shaft 10, a hoisting frame 11, an upper rotary rail 12, a break-out tong part 13, a lower rotary rail 14 and a clamping tong part 15. The pair of break-out tongs is high in automation degree, convenient to mount and dismount and strong in break-out capability, can quickly realize actions of swing, lifting, clamping, as well as drilling rod screwing and dismounting, and has the drilling rod screw thread protection function during break-out.

Description

A kind of hydraulic pressure break out tong with screw thread defencive function

Technical field

Patent of the present invention relates to a kind of hydraulic pressure break out tong with screw thread defencive function, is applicable to the shackle of truck-mounted drilling rig drilling rod.

Background technology

Shackle is the important step of operation that pulls out of hole in truck-mounted drilling rig drilling process, and object is to dismantle the first button that drilling rod connects, and required torque is large, often reaches 2～3 times of rotary torque.Shackle is general uses lower pincers to fix drilling rod below, and upper clamp is lived in the reversion of face drilling rod, reaches the object of dismantling drilling rod, and in breakout process, the spacing of upper lower clamp must increase with the disengagement of screw thread, guarantees that screw thread is unlikely to be squeezed and destroys.In truck-mounted drilling rig when transportation,, because break out tong is positioned at the topmost of rig travel position, superelevation during transportation, need to dismantle, and requires the break out tong dismounting of truck-mounted drilling rig quick, convenient.The shackle device that domestic truck-mounted drilling rig adopts is mostly the shackle device that fork adds hydraulic pipe wrench; this apparatus structure is simple; but need human assistance, shackle position fix and easily skid; therefore, be starved of design easy accessibility, shackle ability strong, with the break out tong of drilling rod thread defencive function.

Summary of the invention

The object of the present invention is to provide a kind of hydraulic pressure break out tong with screw thread defencive function, can realize quick swing, lifting, clamping and unloading drilling rod, and there is drilling rod thread defencive function.

For achieving the above object, the technical solution used in the present invention is:

A hydraulic pressure break out tong with screw thread defencive function, comprises bearing 1, swing arm 2, revolution support 3, motor 4, bearing 5, supporting seat 6, shackle oil cylinder 7, hoist cylinder 8, support arm 9, bearing pin 10, hoisting frame 11, upper swing-around trajectory 12, unloads clasp forceps 13, lower swing-around trajectory 14 and clamping clip 15.Wherein, tong is fastened in the frame of rig by bearing 5; Swing arm 2 supports 3 by revolution and is connected with two bearings 5 with bearing 1; Support arm 9 and swing arm 2 adopt grafting form, fixing by bearing pin 10; Hoist cylinder 8 two ends are separately fixed on support arm 9 and hoisting frame 11, clamping clip 15 is fixed on supporting seat 6, unload clasp forceps 13 and be fixed on supporting seat 6 by upper and lower two swing-around

trajectories

12,14, shackle oil cylinder 7 two ends are separately fixed at supporting seat 6 and unload on clasp forceps 13.

Wherein, described revolution is supported 3 and is driven by motor 4, drives swing arm 2 to swing.

Wherein, described in

unload clasp forceps

13 and 12,14 of upper and lower two swing-around trajectories are gapped vertically, while guaranteeing shackle, have enough floating spaces, do not damage drilling rod thread.

Beneficial effect

The feature that the hydraulic pressure break out tong with screw thread defencive function of the present invention has is:

Break out tong automaticity of the present invention is high, easy accessibility, and shackle ability is strong, can realize fast the action of swing, lifting, clamping and unloading drilling rod, has drilling rod thread defencive function during shackle.

Accompanying drawing explanation

Fig. 1 is the overall structure figure of break out tong of the present invention;

Fig. 2 is break out tong front view of the present invention;

Fig. 3 is break out tong left view of the present invention.

In figure, 1 is bearing; 2 is swing arm; 3 is revolution support; 4 is motor; 5 is bearing; 6 is supporting seat; 7 is shackle oil cylinder; 8 is hoist cylinder; 9 is support arm; 10 is bearing pin; 11 is hoisting frame; 12 is upper swing-around trajectory; 13 for unloading clasp forceps; 14 is lower swing-around trajectory; 15 is clamping clip.

The specific embodiment

Below in conjunction with accompanying drawing, the present invention will be described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.

As shown in Figure 2,3, the hydraulic pressure break out tong with screw thread defencive function of the present invention comprises bearing 1, swing arm 2, revolution support 3, motor 4, bearing 5, supporting seat 6, shackle oil cylinder 7, hoist cylinder 8, support arm 9, bearing pin 10, hoisting frame 11, upper swing-around trajectory 12, unloads clasp forceps 13, lower swing-around trajectory 14 and clamping clip 15.Wherein, tong is fastened in the frame of rig by bearing 5; Swing arm 2 supports 3 by revolution and is connected with two bearings 5 with bearing 1; Support arm 9 and swing arm 2 adopts grafting forms, fixing by bearing pin 10, can quickly dismantled swing arm 2 and support arm 9; Hoist cylinder 8 two ends are separately fixed on support arm 9 and hoisting frame 11, the height of capable of regulating shackle pincers operating position, aggrandizement apparatus shackle scope; Clamping clip 15 is fixed on supporting seat 6, unloads clasp forceps 13 and is fixed on supporting seat 6 by upper and lower two swing-around

trajectories

12,14, and shackle oil cylinder 7 two ends are separately fixed at supporting seat 6 and unload on clasp forceps 13, promotes to unload the shackle that clasp forceps is realized drilling rod.

Wherein, described revolution is supported 3 and can be driven swing arm 2 swings by motor 4 drivings.

Wherein, described in

unload clasp forceps

Break out tong of the present invention is when rig transports, take down bearing pin 10, can extract support arm 9 out, motor 4 drives revolution to support 3 drive swing arms 2 and swings to above frame, meet width and the requirement for height of transportation, after drill site, by lifting appliance descending branch brace 9, to sling and be inserted in swing arm 2, fixed pin shaft 10 can be started working.

During break out tong of the present invention work, motor 4 drives swing arms 2 to make tong swing to operating position, clamping clip 15 and unload clasp forceps 13 and clamp drilling rod simultaneously, and shackle oil cylinder 7 promotes to unload the clasp forceps 13 rotary unloadings bar that spuds in.

Finally it should be noted that: obviously, above-described embodiment is only for example of the present invention is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And the apparent variation of being amplified out thus or change are still among protection scope of the present invention.

Claims

1. a hydraulic pressure break out tong with screw thread defencive function, is characterized in that: comprise bearing (1), swing arm (2), revolution support (3), motor (4), bearing (5), supporting seat (6), shackle oil cylinder (7), hoist cylinder (8), support arm (9), bearing pin (10), hoisting frame (11), upper swing-around trajectory (12), unload clasp forceps (13), lower swing-around trajectory (14) and clamping clip (15); Wherein, tong is fastened in the frame of rig by bearing (5); Swing arm (2) supports (3) by revolution and is connected with two bearings (5) with bearing (1); Support arm (9) and swing arm (2) adopt grafting form, fixing by bearing pin (10), hoist cylinder (8) two ends are separately fixed on support arm (9) and hoisting frame (11), clamping clip (15) is fixed on supporting seat (6), unload clasp forceps (13) and be fixed on supporting seat (6) above by upper and lower two swing-around trajectories (12), (14), shackle oil cylinder (7) two ends are separately fixed at supporting seat (6) and unload on clasp forceps (13).

2. according to the hydraulic pressure break out tong with screw thread defencive function of claim 1, it is characterized in that: described revolution is supported (3) and driven by motor (4), drive swing arm (2) to swing.

3. according to the hydraulic pressure break out tong with screw thread defencive function of claim 1; it is characterized in that: described in to unload clasp forceps (13) gapped vertically with upper and lower swing-around trajectory (12) and (14); while guaranteeing shackle, there are enough floating spaces, do not damage drilling rod thread.