CN202824469U - Cable shearing device - Google Patents
Cable shearing device Download PDFInfo
- Publication number
- CN202824469U CN202824469U CN 201220301895 CN201220301895U CN202824469U CN 202824469 U CN202824469 U CN 202824469U CN 201220301895 CN201220301895 CN 201220301895 CN 201220301895 U CN201220301895 U CN 201220301895U CN 202824469 U CN202824469 U CN 202824469U
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Abstract
Provided is a cable shearing device. A step-shaped through hole and a cable through hole are longitudinally formed in a body, wherein the lower end of the step-shaped through hole is communicated with the upper end of the cable through hole; a guide hole with a sealed inner end is transversely formed in the middle of the body, and the guide hole and the lower portion of the step-shaped through hole are communicated in a cross-shaped intersection mode; a cylinder body with an open outer end is arranged in the middle of the right side of the body in an outward protruding mode, a piston is located in the cylinder body, a piston rod at the front end of the piston is located in the guide hole, and a waist-shaped hole is formed in the end portion of the piston rod in the radial direction; an end cover is arranged at the outer end of the cylinder body in a sleeved mode and seals the cylinder, and a hydraulic oil inlet at the outer end of the end cover is connected with a fast connector; a fixed knife edge seat and a pressing cap are arranged in the step-shaped through hole from bottom to top; a through hole corresponding to the cable through hole is longitudinally formed in the fixed knife edge seat and the pressing cap, and a shearing hole corresponding to the guide hole is transversely formed in the fixed knife edge seat; and internal threads are formed at the upper end inside the step-shaped through hole, and external threads are formed at the lower end of the body. According to the cable shearing device, hydraulic pressure is adopted to drive the piston to shear a cable, fractures of the cable are parallel and aligned, and operation is simple and convenient.
Description
Technical field
The utility model belongs to oilfield test well operations technical field, is specifically related to a kind of cable cutter cutting apparatus.
Background technology
During oilfield test well wireline operation, because a variety of causes may cause the appearance of cable armouring steel wire wear fracture of wire situation, the fracture of wire situation may form the bird's nest accident in greasing seal head lower end when cable is carried, cause cable to be blocked, can not on carry.Traditional treating method is: double ram type preventer is closed clamp cable first, and greasing hermetically-sealed cable, then the lubricator internal pressure is released, remove again, sling lubricator and upper catcher, greasing seal head, in lower catcher upper end to the cable attached cable of checking card, and with hand shears cable is cut off the position on the upper side from lower sheave, extract at last cable out from the lubricator lower end, cut the bird's nest position, and again penetrate cable from lubricator, greasing seal head lower end, up and down two joint docking, armouring is wrapped; Remove strain relief clamp again, connect lubricator and lower catcher, after a whole set of blowout hookup connected, preventer was opened, and pressure UNICOM has got final product normal operation.This kind mode has increased the cable segment length that goes out of use, and follow-up from lubricator, waste time and energy when the greasing seal head penetrates new cable again, therefore is necessary to improve.
The utility model content
The technical problem that the utility model solves: a kind of cable cutter cutting apparatus is provided, is installed in the middle of the greasing seal head, shear cable by hydraulic drive piston, the cable fracture is concordant, and is easy and simple to handle.
The technical solution adopted in the utility model: the cable cutter cutting apparatus, have body, vertically be shaped with step through hole and cable through-hole in the described body, and step through hole lower end communicates with the upper end of cable through-hole; The middle part laterally is shaped with the pilot hole of inner sealing in the described body, and bottom " ten " shape of pilot hole and step through hole is intersected perforation; Described body right side central is outwardly the uncovered cylinder body in outer end, and piston is arranged in cylinder body, and the piston rod of piston nose is arranged in pilot hole, and the end of piston rod radially is shaped with waist-shaped hole; End cap is sleeved on the cylinder body outer end with cylinder body seal, is connected with snap joint in the hydraulic oil import of described end cap outer end; Described step through hole is equipped with fixedly edge of a knife seat and pressure cap from bottom to top successively; Vertically be shaped with the through hole corresponding with cable through-hole on described fixedly edge of a knife seat and the pressure cap, and fixedly laterally be shaped with the shearing perforation corresponding with pilot hole on the edge of a knife seat, the upper end is shaped with internal thread in the described step through hole, and described body lower end is shaped with external screw thread.
Further, be fitted with safe shear pin between described cylinder body and the piston.
Further, described piston rod end is shaped with the hole that connects with waist-shaped hole.
Further, be installed with protective cap on the described internal thread, be installed with protective sleeve on the described external screw thread.
The utility model compared with prior art adopts hydraulic drive piston to shear cable, and the cable fracture is concordant, and is easy and simple to handle, and can reduce the cable segment length that goes out of use, and reduces follow-up wearing the spent time of cable.Particularly when the situation of blowout or the urgent closing well of other need occurring, can directly cut off cable in the blowout hookup eminence, cable is fallen in the well, and the quick closedown head valve is guaranteed well head safe.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the A-A cutaway view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing 1,2 a kind of embodiment of the present utility model is described.
A kind of cable cutter cutting apparatus has body 1, and described body 1 is interior vertically to be shaped with step through hole 8 and cable through-hole 9, and step through hole 8 lower ends communicate with the upper end of cable through-hole 9; Described body 1 interior middle part laterally is shaped with the pilot hole 10 of inner sealing, and bottom " ten " shape of pilot hole 10 and step through hole 8 is intersected perforation; Described body 1 right side central is outwardly the uncovered cylinder body in outer end 11, and piston 7 is arranged in cylinder body 11, and the piston rod 12 of piston 7 front ends is arranged in pilot hole 10, and the end of piston rod 12 radially is shaped with waist-shaped hole 13; End cap 4 is sleeved on cylinder body 11 outer ends with cylinder body 11 sealings, is connected with snap joint 5 in the hydraulic oil import of described end cap 4 outer ends; Described step through hole 8 is equipped with fixedly edge of a knife seat 3 and pressure cap 2 from bottom to top successively; Described step through hole 8 interior upper ends are shaped with internal thread 18, vertically be shaped with the through hole 15 corresponding with cable through-hole 9 on described fixedly edge of a knife seat 3 and the pressure cap 2, and fixedly laterally be shaped with the shearing perforation 16 corresponding with pilot hole 10 on the edge of a knife seat 3, described body 1 lower end is shaped with external screw thread 19.Described body 1 adopts the solid forging blank to process.
Be fitted with safe shear pin 6 between described cylinder body 11 and the piston 7, prevent the misoperation of hydraulic system pushing piston.Described piston rod 12 ends are shaped with the hole 17 that connects with waist-shaped hole 13, are convenient to residual cable section is pounded out by hole 17.Described step through hole 8 upper ends are shaped with internal thread 18, and are installed with protective cap 20 on the internal thread 18, for the protection of internal thread 18.Described body 1 bottom is shaped with external screw thread 19, and is set with protective sleeve 21 on the external screw thread 19, for the protection of external screw thread 19.
Lay down protective cap 20 and protective sleeve 14 during use; by being threaded up and down the utility model is installed in the middle of the greasing seal head; end and internal thread 18 by the greasing seal head screw the pressure cap 2 that is fixed edge of a knife seat 3 tops; by snap joint 5 connecting fluid pressing systems, from 7 motions of snap joint 5 injection liquid force feed pushing pistons.The waist-shaped hole 13 of piston rod 12 front ends also is to shear the edge of a knife, advances in the pilot hole 10 of piston rod 12 in body 1, cooperates the cable that will be arranged in longitudinal hole 15 on the fixing edge of a knife seat 3 to cut off with fixing edge of a knife seat 3.After cutting off cable, lay down end cap 4, with hand piston 7 integral body are pulled out, the residual cable section in piston rod 12 ends is pounded out by front aperture 17.For preventing the piston misoperation, between body 1 and piston 7, be equipped with safe shear pin 6, when the hydraulic drive piston, need cut off first safe shear pin 6, could continue to move ahead, shear cable.Reinstall piston 7, equipped safe shear pin 6 after having sheared, suit end cap 4 returns to the front state of shearing, and gets ready for shearing next time.
Above-described embodiment is preferred embodiment of the present utility model, is not to limit the utility model practical range, so all equivalences of being done with the described content of the utility model claim change, all should be included within the utility model claim scope.
Claims (4)
1. the cable cutter cutting apparatus has body (1), it is characterized in that: vertically be shaped with step through hole (8) and cable through-hole (9) in the described body (1), and step through hole (8) lower end communicates with the upper end of cable through-hole (9); The middle part laterally is shaped with the pilot hole (10) of inner sealing in the described body (1), and bottom " ten " shape of pilot hole (10) and step through hole (8) is intersected perforation; Described body (1) right side central is outwardly the uncovered cylinder body in outer end (11), piston (7) is arranged in cylinder body (11), the piston rod (12) of piston (7) front end is arranged in pilot hole (10), and the end of piston rod (12) radially is shaped with waist-shaped hole (13); End cap (4) is sleeved on cylinder body (11) outer end with cylinder body (11) sealing, is connected with snap joint (5) in the hydraulic oil import of described end cap (4) outer end; Described step through hole (8) is equipped with fixedly edge of a knife seat (3) and pressure cap (2) from bottom to top successively; Vertically be shaped with the through hole (15) corresponding with cable through-hole (9) on described fixedly edge of a knife seat (3) and the pressure cap (2), and fixedly laterally be shaped with the shearing perforation (16) corresponding with pilot hole (10) on the edge of a knife seat (3), the upper end is shaped with internal thread (18) in the described step through hole (8), and described body (1) lower end is shaped with external screw thread (19).
2. cable cutter cutting apparatus according to claim 1 is characterized in that: be fitted with safe shear pin (6) between described cylinder body (11) and the piston (7).
3. cable cutter cutting apparatus according to claim 1 is characterized in that: described piston rod (12) end is shaped with the hole (17) that connects with waist-shaped hole (13).
4. according to claim 1 and 2 or 3 described cable cutter cutting apparatus, it is characterized in that: be installed with on the described internal thread (18) protective cap (20, be installed with protective sleeve (14) on the described external screw thread (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220301895 CN202824469U (en) | 2012-06-26 | 2012-06-26 | Cable shearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220301895 CN202824469U (en) | 2012-06-26 | 2012-06-26 | Cable shearing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202824469U true CN202824469U (en) | 2013-03-27 |
Family
ID=47936265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220301895 Expired - Lifetime CN202824469U (en) | 2012-06-26 | 2012-06-26 | Cable shearing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202824469U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106475623A (en) * | 2015-08-27 | 2017-03-08 | 上海交通大学 | ROV hydraulic pressure scissors |
| CN111469204A (en) * | 2020-04-29 | 2020-07-31 | 杭州宇控机电工程有限公司 | Emergent double knives cutting device of compound umbilical cable |
-
2012
- 2012-06-26 CN CN 201220301895 patent/CN202824469U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106475623A (en) * | 2015-08-27 | 2017-03-08 | 上海交通大学 | ROV hydraulic pressure scissors |
| CN111469204A (en) * | 2020-04-29 | 2020-07-31 | 杭州宇控机电工程有限公司 | Emergent double knives cutting device of compound umbilical cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |