CN201129149Y - Mechanical type rotating anchoring device - Google Patents
Mechanical type rotating anchoring device Download PDFInfo
- Publication number
- CN201129149Y CN201129149Y CNU2007200942893U CN200720094289U CN201129149Y CN 201129149 Y CN201129149 Y CN 201129149Y CN U2007200942893 U CNU2007200942893 U CN U2007200942893U CN 200720094289 U CN200720094289 U CN 200720094289U CN 201129149 Y CN201129149 Y CN 201129149Y
- Authority
- CN
- China
- Prior art keywords
- anchoring device
- overcoat
- jacket
- power shaft
- mechanical type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a mechanical rotary anchoring device, belonging to the technical field of petroleum equipment, which is characterized in that: a power shaft is matched with a pin cap, a jacket, and a friction body in clearance, and the stop position of the power shaft is limited by a shear pin; the pin cap, the jacket and the friction body are connected through the threads; the power shaft in the jacket is provided with a plurality of cam paths ., and sliding fixture blocks arranged in each cam groove is frictionally matched with the cam part. The mechanical rotary anchoring device has the beneficial effects of deblocking by turning strings in a reversed direction underground, repeatedly anchoring, working reliably, being convenient to be operated, thus being extended in application.
Description
Technical field
The utility model belongs to the oil equipment technical field.
Background technology
Present domestic Oilfield using screw pump or electric submersible pump pumpingh well quantity are constantly increasing, and this oil pumping mode needs grappling in the tubing string bottom.Anchor has rail mounted, one-board, multi-plate now.See that from on-the-spot mode of occupation the rail mounted anchor is not handy greater than 25 ° of wells in gradient, board-like anchor anchoring effect in inclined shaft is poorer.
Summary of the invention
The purpose of this utility model is:
A kind of mechanical type rotation anchor is provided, and it can be used for the oil well electric submersible pump, and the grappling of screw pump pumping pipe string prevents the moment of torsion that tubing string is produced when bearing electric submersible pump or screw pump work.
The utility model is that technical scheme is:
Line shaft and pin cap, overcoat, friction piece matched in clearance, and it is spacing by shear pin, pin cap, overcoat, friction piece are threaded each other, and several cam paths are arranged on the line shaft in overcoat, be placed with the slip fixture block and cooperate with the sliding friction of cam position in each groove.
When the line shaft both forward and reverse directions rotated, brake pad constraint overcoat and sleeve friction fixedly made fixture block stretch out or withdraw.
After shear pin was cut off, filler ring held up the connector of line shaft outside, and fixture block enters in the overcoat simultaneously, and fixture block no longer contacts with sleeve pipe.
Mechanical type rotation anchor has just changes grappling and two kinds of the grapplings of reversing.
The beneficial effects of the utility model are:
But pass through the unfreezing of counter-rotation tubing string in the down-hole, and can repeat grappling, reliable operation, easy and simple to handle, be convenient to expand wide application.
Description of drawings
Fig. 1 is the utility model structure sectional view;
Fig. 2 is the disconnected sectional view of the utility model A-A;
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As shown in Figure 1, 2, the 1st, line shaft, the 2nd, pin cap, the 3rd, shear pin, the 4th, limit body, the 5th, backing-up screw, the 6th, magnetic column, the 7th, fixture block, the 8th, overcoat, the 9th, hold-down screw, the 10th, leaf spring, the 11st, brake pad, the 12nd, baffle ring, the 13rd, friction piece, the 14th, filler ring, the 15th, dog screw.
After machinery rotation anchor was used tubing string G.I.H desired depth, at this moment, brake pad (11) was subjected to leaf spring (10) power effect and sleeve pipe generation stiction that overcoat (8) is not rotated, and the fixture block (7) that is contained in the overcoat can not rotate.Like this, line shaft (1) was also followed the tubing string rotation when tubing string rotated, and the cam on the line shaft (1) ejects fixture block (7) contact sleeve pipe.The tubing string torque is big more, and fixture block (7) is also big more with casing clamp power, and fixture block (7) can self-locking.Cutting off shear pin (3) by counter-rotation tubing string or upper lifting pipe post during unfreezing gets final product.After shear pin (3) was cut off, filler ring (14) held up the connector of line shaft outside, and fixture block (7) enters in overcoat (8) chamber simultaneously, and fixture block (7) no longer contacts with sleeve pipe.
Claims (1)
1. a mechanical type rotates anchor, it is characterized in that: line shaft and pin cap, overcoat, friction piece matched in clearance, and it is spacing by shear pin, pin cap, overcoat, friction piece are threaded each other, several cam paths are arranged on the line shaft in overcoat, in each groove, be placed with the slip fixture block and cooperate with the sliding friction of cam position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200942893U CN201129149Y (en) | 2007-08-31 | 2007-08-31 | Mechanical type rotating anchoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200942893U CN201129149Y (en) | 2007-08-31 | 2007-08-31 | Mechanical type rotating anchoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201129149Y true CN201129149Y (en) | 2008-10-08 |
Family
ID=40016989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200942893U Expired - Lifetime CN201129149Y (en) | 2007-08-31 | 2007-08-31 | Mechanical type rotating anchoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201129149Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107672763A (en) * | 2017-09-01 | 2018-02-09 | 宝鸡石油机械有限责任公司 | A kind of steel wire rope aids in the long-range fishing device of self-locking underwater installation |
-
2007
- 2007-08-31 CN CNU2007200942893U patent/CN201129149Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107672763A (en) * | 2017-09-01 | 2018-02-09 | 宝鸡石油机械有限责任公司 | A kind of steel wire rope aids in the long-range fishing device of self-locking underwater installation |
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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: 20081008 |