CN202336556U - Shearing machine for logging cable - Google Patents
Shearing machine for logging cable Download PDFInfo
- Publication number
- CN202336556U CN202336556U CN2011204783182U CN201120478318U CN202336556U CN 202336556 U CN202336556 U CN 202336556U CN 2011204783182 U CN2011204783182 U CN 2011204783182U CN 201120478318 U CN201120478318 U CN 201120478318U CN 202336556 U CN202336556 U CN 202336556U
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- spacer
- hole
- tube
- cable
- central
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Abstract
The utility model discloses a shearing machine for a logging cable and aims at providing the shearing machine for the logging cable, which has simple structure and is easy for cutting off the cable. The shearing machine comprises an upper joint, a lower joint and a pipe barrel connected between the upper joint and a lower pull head; a spacer bush and a capture cylinder are arranged in the pipe barrel from top to bottom; the spacer bush is fixed at the inner upper part or middle upper part of the pipe barrel; and a cable cutting tool is arranged at one side or two sides of a central through hole on the upper end surface of the spacer bush; the capture cylinder is fixed at the inner lower part of the pipe barrel through a shear pin; when an external tensile force is greater than the shearing parameter of the shear pin, the shear pin is cut off and leads the capture cylinder to move toward the direction of the spacer bush under the action of the external tensile force; when the logging cable needs to be sheared, the cable is upwards lifted and pulled, the shear pin fractures, the capture cylinder compresses the spring and drives a rack to upwards move, the rack drives a gear on the cutting tool to rotate, and the gear drives a cutting head to rotate around a cutter shaft and realize the shearing of the logging cable, thereby the logging cable can be taken out, and significant blowout accidents are avoided.
Description
Technical field
The utility model relates to a kind of logging cable clipper of petroleum works oil gas well, is applicable on the test string that is connected petroleum works oil gas well, through Ground Control, realizes the shearing of the test cable of oil gas well.
Background technology
Existing logging cable clipper is through upwards lifting cable, drive the shear-blade upset, accomplishing the shearing of test cable.The problem that this logging cable clipper structure exists is that upwards to lift the pulling force of cable too big, and cable is difficult for cutting off.
The utility model content
For overcoming above-mentioned defective, the purpose of the utility model provide a kind of simple in structure and easy cut-out cable the logging cable clipper.
For achieving the above object, the logging cable clipper of the utility model, comprise top connection, lower contact and be connected top connection and following pull head between socket; Axially be provided with and hold cable and pass central through hole in the middle part at described top connection, lower contact and socket from the middle part;
In described socket, be provided with spacer from top to bottom and catch tube, spacer with catch a center and be equipped with the central through hole that allows cable to pass; Described spacer with catch tube and be provided with at interval; Wherein,
This spacer is fixed on socket internal upper part or middle and upper part, and the central through hole one or both sides are provided with the cable cutting tool on the spacer upper surface;
This is caught tube and is fixed on bottom in the socket through shear pin; Described shear pin is cut off and makes this to catch tube and externally moves to the spacer direction under the tension when externally pulling force is greater than its shear parameters;
Between this catches tube and this spacer, be provided with drive unit, catching tube when the spacer direction is moved, this drive unit driving cutting tool is made shearing motion, and the movement travel of shearing tool is more than or equal to the diameter of central through hole;
The diameter of the central through hole of lower contact is greater than the diameter of the central through hole of catching tube.
Particularly, described cutting tool is set to two, and each cutting tool is made up of cutter shaft and the cutter head that is installed in the cutter shaft front end, the blade of two cutter heads be provided with in opposite directions and the length of blade greater than the diameter of central through hole; Described cutter shaft is installed on the upper surface of spacer through support;
Described drive unit comprises: the driven wheel that is installed in the cutter shaft afterbody; On the sidewall of spacer, position that should driven wheel is provided with side through hole; Upwards be fixed with tooth bar catching a position of upper surface respective side through hole, the upper end of described tooth bar is passed side through hole and is meshed with gear.。
Particularly, the circumferential edge place upwards forms thin wall cylinder in described spacer upper surface, on book wall tube upper surface, is provided with the bearing tube, and bearing lower surface, thin wall cylinder inner surface and spacer upper surface surround a cavity, and described cutting tool is arranged in the cavity.
Particularly, the position of nearly centre bore forms guide vertically downwards in described spacer lower surface; The diameter of described central through hole of catching tube is greater than the external diameter of guide, and described guide lower end is positioned at the central through hole of catching tube; Outside described guide, be arranged with back-moving spring.
Logging cable clipper described in the utility model under oil gas well proper testing situation, is connected on the test string, and logging cable passes from the centre bore of shearing, and can accomplish transmission and the electric current of pressure, moment of torsion, the transmission of the signal of telecommunication.When needs are sheared logging cable,, upwards lift cable with suitable pulling force; When the lower surface of tube was caught in the joint contact of cable lower end, shear pin ruptured, and caught tube compression spring and drive tooth bar to move up; Gear on the rack drives cutting tool rotates; The gear driven cutter head rotates the shearing that realizes logging cable around cutter shaft, can take out logging cable, avoids great gas blowout accident.The utility model novel structure can use under high-temperature and high-pressure conditions, and is safe and reliable; Under the normal condition, can realize transmission and the electric current of pressure, moment of torsion, the transmission of the signal of telecommunication; In particular cases, can accomplish cutting off of logging cable with less pulling force on demand, safe and reliable.
Description of drawings
Fig. 1 is the structural representation of the utility model logging cable clipper embodiment.
The drawing reference numeral explanation:
1, top connection; 2, lower contact; 3, socket; 4, bearing; 5, cutter head; 6, cutter shaft; 7, cutter head; 8, spacer; 9, back-moving spring; 10, catch tube; 11, shear pin; 12, straight pin; 13, tooth bar
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Embodiment 1
Consult Fig. 1, the logging cable clipper of the utility model, comprise top connection 1, lower contact 2 and be connected top connection and following pull head between socket 3; Axially be provided with and hold cable and pass through hole in the middle part at described top connection, lower contact and socket from the middle part;
In described socket, be provided with spacer 8 from top to bottom and catch tube 10, spacer 8 with catch tube 10 centers and be equipped with the central through hole that allows cable to pass; Described spacer 8 with catch tube 10 and be provided with at interval; Wherein,
This spacer 8 is fixed on socket internal upper part or middle and upper part, and the central through hole one or both sides are provided with the cable cutting tool on spacer 8 upper surfaces;
This is caught tube and is fixed on bottom in the socket 3 through shear pin 11; Described shear pin is cut off and makes this to catch tube and externally moves to the spacer direction under the tension when externally pulling force is greater than its shear parameters;
Between this catches tube 10 and this spacer 8, be provided with drive unit, catching tube when the spacer direction is moved, this drive unit driving cutting tool is made shearing motion, and the movement travel of shearing tool is more than or equal to the diameter of central through hole.
Described cutting tool is set to two, and each cutting tool is made up of cutter shaft 6 and the cutter head 5,7 that is installed in the cutter shaft front end, the blade of two cutter heads be provided with in opposite directions and the length of blade greater than the diameter of central through hole; Described cutter shaft 6 is installed on the upper surface of spacer 8 through support;
Described drive unit comprises: the driven wheel that is installed in cutter shaft 6 afterbodys; On the sidewall of spacer 8, position that should driven wheel is axially arranged with through hole; Position that should through hole upwards is fixed with tooth bar 13 catching tube 10 upper surfaces, the upper end of described tooth bar 13 is passed this through hole and is meshed with gear.
Embodiment 2
Shown in Figure 1 is the logging cable clipper embodiment of the utility model, comprise top connection 1, lower contact 2 and be connected top connection and following pull head between socket 3; Axially be provided with and hold cable and pass through hole in the middle part at described top connection, lower contact and socket from the middle part;
In described socket, be provided with spacer 8 from top to bottom and catch tube 10, spacer 8 with catch tube 10 centers and be equipped with the central through hole that allows cable to pass; Described spacer 8 with catch tube 10 and be provided with at interval; Wherein,
This spacer 8 is fixed on socket internal upper part or middle and upper part, and the central through hole one or both sides are provided with the cable cutting tool on spacer 8 upper surfaces;
This is caught tube and is fixed on bottom in the socket 3 through shear pin 11; Described shear pin is cut off and makes this to catch tube and externally moves to the spacer direction under the tension when externally pulling force is greater than its shear parameters;
Between this catches tube 10 and this spacer 8, be provided with drive unit, catching tube when the spacer direction is moved, this drive unit driving cutting tool is made shearing motion, and the movement travel of shearing tool is more than or equal to the diameter of central through hole.
Described cutting tool is set to two, and each cutting tool is made up of cutter shaft 6 and the cutter head 5,7 that is installed in the cutter shaft front end, and wherein cutter head 5 is auxilliary cutter, and cutter head 7 is operator; The blade of two cutter heads is provided with in opposite directions; Described cutter shaft 6 is installed on the upper surface of spacer 8 through support;
Described drive unit comprises: the driven wheel that is installed in cutter shaft 6 afterbodys; On the sidewall of spacer 8, position that should driven wheel is axially arranged with through hole; Position that should through hole upwards is fixed with tooth bar 13 catching tube 10 upper surfaces, the upper end of described tooth bar 13 is passed this through hole and is meshed with gear.The circumferential edge place upwards forms thin wall cylinder in described spacer 8 upper surface, on book wall tube upper surface, is provided with the bearing tube, and bearing lower surface, thin wall cylinder inner surface and spacer upper surface surround a cavity, and described cutting tool is arranged in the cavity.
The position of nearly centre bore forms guide vertically downwards in described spacer 8 lower surfaces; Described external diameter of catching the diameter of tube 10 central through hole greater than guide, described guide lower end is positioned at the central through hole of catching tube; Outside described guide, be arranged with back-moving spring 9.Can make after cutting off cable that like this catching tube resets under action of reset spring.
Adopt said structure, be connected on the test string, can realize transmission and the electric current of pressure, moment of torsion, the transmission of the signal of telecommunication.When needs are sheared logging cable,, upwards lift cable with suitable pulling force; When the lower surface of tube 10 is caught in the joint contact of cable lower end; Shear pin 11 fracture is caught tube 10 compression springs 9 and is driven tooth bar 13 and moves up, and the gear that tooth bar 13 drives in auxilliary cutter 5, the operator 7 rotates; Gear driven is assisted cutter 5, operator 7 is rotated the shearing that realizes logging cable around cutter shaft 6, can take out logging cable.
The design philosophy of the utility model may extend on the logging cable clipper of any model.Should guarantee material property, crudy, thermal treatment quality and assembly quality in the specific implementation, only in this way just can guarantee the reliability and the high life of the utility model.
Claims (4)
1. a logging cable clipper is characterized in that, comprise top connection, lower contact and be connected top connection and following pull head between socket; Axially be provided with and hold cable and pass central through hole in the middle part at described top connection, lower contact and socket from the middle part;
In described socket, be provided with spacer from top to bottom and catch tube, spacer with catch a center and be equipped with the central through hole that allows cable to pass; Described spacer with catch tube and be provided with at interval; Wherein,
This spacer is fixed on socket internal upper part or middle and upper part, and the central through hole one or both sides are provided with the cable cutting tool on the spacer upper surface;
This is caught tube and is fixed on bottom in the socket through shear pin; Described shear pin is cut off and makes this to catch tube and externally moves to the spacer direction under the tension when externally pulling force is greater than its shear parameters;
Between this catches tube and this spacer, be provided with drive unit, catching tube when the spacer direction is moved, this drive unit driving cutting tool is made shearing motion, and the movement travel of shearing tool is more than or equal to the diameter of central through hole;
The diameter of the central through hole of lower contact is greater than the diameter of the central through hole of catching tube.
2. logging cable clipper as claimed in claim 1; It is characterized in that; Described cutting tool is set to two, and each cutting tool is made up of cutter shaft and the cutter head that is installed in the cutter shaft front end, the blade of two cutter heads be provided with in opposite directions and the length of blade greater than the diameter of central through hole; Described cutter shaft is installed on the upper surface of spacer through support;
Described drive unit comprises: the driven wheel that is installed in the cutter shaft afterbody; On the sidewall of spacer, position that should driven wheel is provided with side through hole; Upwards be fixed with tooth bar catching a position of upper surface respective side through hole, the upper end of described tooth bar is passed side through hole and is meshed with gear.
3. logging cable clipper as claimed in claim 1; It is characterized in that; The circumferential edge place upwards forms thin wall cylinder in described spacer upper surface; On book wall tube upper surface, be provided with the bearing tube, bearing lower surface, thin wall cylinder inner surface and spacer upper surface surround a cavity, and described cutting tool is arranged in the cavity.
4. logging cable clipper as claimed in claim 1 is characterized in that, the position of nearly centre bore forms guide vertically downwards in described spacer lower surface; The diameter of described central through hole of catching tube is greater than the external diameter of guide, and described guide lower end is positioned at the central through hole of catching tube; Outside described guide, be arranged with back-moving spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204783182U CN202336556U (en) | 2011-11-25 | 2011-11-25 | Shearing machine for logging cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204783182U CN202336556U (en) | 2011-11-25 | 2011-11-25 | Shearing machine for logging cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202336556U true CN202336556U (en) | 2012-07-18 |
Family
ID=46485261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204783182U Withdrawn - After Issue CN202336556U (en) | 2011-11-25 | 2011-11-25 | Shearing machine for logging cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202336556U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102397961A (en) * | 2011-11-25 | 2012-04-04 | 新疆塔里木油田建设工程有限责任公司 | Logging cable shears |
-
2011
- 2011-11-25 CN CN2011204783182U patent/CN202336556U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102397961A (en) * | 2011-11-25 | 2012-04-04 | 新疆塔里木油田建设工程有限责任公司 | Logging cable shears |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120718 Effective date of abandoning: 20131113 |
|
| RGAV | Abandon patent right to avoid regrant |