CN2554334Y - Continuous sucker rod joint of fibre reinforced composite - Google Patents
Continuous sucker rod joint of fibre reinforced composite Download PDFInfo
- Publication number
- CN2554334Y CN2554334Y CN 02235734 CN02235734U CN2554334Y CN 2554334 Y CN2554334 Y CN 2554334Y CN 02235734 CN02235734 CN 02235734 CN 02235734 U CN02235734 U CN 02235734U CN 2554334 Y CN2554334 Y CN 2554334Y
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- CN
- China
- Prior art keywords
- joint
- jacket
- sucker rod
- rotating jacket
- pressed
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- 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 continuous sucker rod joint of fiber reinforced composite material, comprising a clamping head, a safety pin and a rotary joint, wherein, the clamping head consists of a clamping casing, wedge fastening blocks and a pressing joint. The sucker rod are clamped between the two separated wedge fastening blocks, the fastening blocks are arranged inside the clamping casing, and the pressing joint presses the wedge fastening block from one end of the clamping casing to fix the sucker rod. The pressing joint is connected with the safety pin jacket through a connecting jacket, a break pin is crossly arranged on the safety pin to lead the connecting jacket to be fixedly connected with the safety pin jacket, and the other end of the safety pin jacket is connected with a rotary jacket, an end hole of the rotary jacket is loosely inserted with an outer joint, and the rotary jacket can freely rotate opposite to the outer joint without breaking off. When over loading occurs under a well, the joint can lead the break pin to protect the sucker rod from being damaged, and the torsion state of the sucker rod can be flexibly adjusted.
Description
Technical field:
The utility model relates to the coiled rod joint that flexible member is connected usefulness with rigid member joint, particularly oil exploitation are used.
Background technology:
At present, the flexible continuous pumping rod of using in the oil exploitation is generally made by carbon fiber or other fibrous composites, because it has that supporting capacity is strong, wear-resisting, antifatigue, advantage such as can coil, has become the developing direction of sucker rod.And be used for the joint that this flexible rod is connected with the rigid device (as: oil well pump, polished rod etc.) of fixing, then require to bear big, the safe special joint of dynamic loading.US4416329 discloses a kind of carbon fibre reinforced composite sucker rod and joint, this joint is fixed in the carbon fiber flexible band on the steel stem with rivet, because actual oil recovery operating mode dynamic load is bigger, and rivet joint supporting capacity only is the 1/4-1/3 of unidirectional composite material actual strength generally, so the supporting capacity of joint can not satisfy working condition requirement, and tearing of composite material takes place in rivet hole place easily on the rods.Chinese patent 00248770.5 proposes a kind of joint, comprise fittings body, wedge and connecting bolt, connected rods is clipped in the wedge, and wedge is reached the purpose of clamping by the hold-down bolt holddown spring at rear portion, connecting bolt is arranged on the fittings body, joint is fixedlyed connected with rigid member.This patent is difficult for getting loose under dynamic load owing to adopt the mode that compresses of hold-down bolt holddown spring.But, the banded sucker rod of carbon fiber can reach 220KN because being connected the maximum pull that is born with joint, therefore require the wedge in the joint that sucker rod is had enough big clamping force, but only depend on hold-down bolt to compress voussoir through the external torque spiral, because of existing the frictional resistance between screw thread and the factors such as frictional resistance of wedge and outer inner room, be difficult to guarantee the clamping force unanimity of all joints, its reliability can not guarantee.In addition, connector interfaces directly is connected with fixture with connecting bolt, when overloading (as holddown etc.), directly damages coiled rod, maintain and replace inconvenience, and maintenance cost is higher.In addition,, on continuous length surpasses, twist easily in the deep-well of km, produce internal stress, influence the application life of sucker rod because sucker rod is the continuous flexible band shape.
Summary of the invention:
The technical problems to be solved in the utility model is: when overload took place, the protection fibre reinforced composites sucker rod body of rod was not damaged; In addition, when heavy duty service, prevent banded rod twisting and produce excessive torsional stress, thereby a kind of safe, easy to maintenance, rod connector of continous sucker rod made of fiber reinforced composition being had protective effect is provided.
The technical solution of the utility model: this joint comprises clamping head, safety joint and swivel three part assemblies, wherein clamping head is by gripping sleeve, wedge clamping block and pressed joint are formed, rod grip is in the middle of two wedge clamping blocks that separate, clamp is pressed in the gripping sleeve, rod grip is fastened, pressed joint compresses wedge clamping block from gripping sleeve one end, pressed joint is connected with the safety joint assembly by an adapter sleeve, the safety joint assembly comprises: with adapter sleeve safe guide movingly, safety pin puts and has crossed one and cut off pin, adapter sleeve is fixedlyed connected with safe guide, safe guide is fixedlyed connected with a rotating jacket by joint, the stomidium pine that rotating jacket is passed in socket is enclosed within on the rotating jacket, and rotating jacket can freely rotate and do not deviate from relative to socket.
Effect of the present utility model: safety pin and swivel modular construction that the utility model adopts; when transshipping (holddown etc.); the pin of cutting off of safety pin at first ruptures, and makes adapter sleeve and clamping head do as a whole disengaging, has protected sucker rod not to be damaged.In addition, owing to adopt the swivel assembly with being connected of ground fixed equipment, when continuous sucker rod twisted, rotating jacket reached and can freely rotate relative to socket with its sucker rod that connects as one, thereby adjusted reversing of coiled rod generation flexibly.
Description of drawings:
Fig. 1 is a structural representation of the present utility model
The specific embodiment:
Embodiment: as shown in Figure 1: the utility model comprises clamping head, safety pin and swivel three parts, wherein: clamping head is made up of gripping sleeve 3, wedge clamping block 2 and pressed joint 4, sucker rod 1 is clipped in the middle of two wedge clamping blocks that separate, wedge clamping block 2 adopts hydraulic pressure stationary fit mode to be pressed in the gripping sleeve 3 by hydraulic means, hydraulic coupling when compressing is the 5-15 ton, and sucker rod is fixed.Pressed joint 4 is a multidiameter shape, one end is a hold-down head, stretch into gripping sleeve 3 from gripping sleeve one end and compress the fixing wedge clamping block of hydraulic pressure, the pressed joint other end is connected with safe guide 7 by an adapter sleeve 5, safe guide is stepped, its small end is sleeved in the adapter sleeve movingly, and radially crossed one along it and cut off pin 6, adapter sleeve 5 is fixedlyed connected with safe guide 7, its big end is an inner thread sleeve, the centre is rotary with a nipple 8, the other end of nipple 8 is equipped with rotating jacket 9, and the stomidium of rotating jacket is passed in socket 10, and pine is enclosed within on the rotating jacket, the shaft shoulder is held the stage in the rotating jacket, makes rotating jacket freely rotate and do not deviate from relative to socket.
The operating principle of this joint: this joint comprises: clamping head, safety pin and swivel three part assemblies, flexible rod 1 is clamped by two wedge clamping blocks 2, and compress by pressed joint 4, pressed joint 4 fixedly spins with adapter sleeve 5, adapter sleeve 5 is connected with the safety pin cover by cutting off pin, when overload takes place in the down-hole, cuts off pin and at first ruptures, this moment, adapter sleeve 5 fell down with clamping head assembly integral body, guaranteed that sucker rod is not damaged.Safe guide connects rotating jackets 9 by nipple 8, and the stomidium of rotating jacket is passed in socket 10, and pine is enclosed within on the rotating jacket, and the shaft shoulder is held the stage in the rotating jacket, makes rotating jacket freely rotate and do not deviate from relative to socket.When continuous sucker rod twisted, rotating jacket and the sucker rod that connects as one with it can freely rotate, and reached and adjusted the purpose that sucker rod reverses.
Claims (4)
1, a kind of continous sucker rod made of fiber reinforced composition joint, comprise a clamping head, clamping head is by gripping sleeve (3), wedge clamping block (2) and pressed joint (4) are formed, sucker rod (1) is clipped in the middle of two wedge clamping blocks that separate, clamp is pressed in the gripping sleeve, rod grip is fastened, pressed joint compresses wedge clamping block from gripping sleeve one end, it is characterized in that: pressed joint is connected with the safety joint assembly by an adapter sleeve (5), the safety joint assembly comprises: with adapter sleeve safe guide (7) movingly, safety pin puts and has crossed one and cut off pin (6), adapter sleeve is fixedlyed connected with safe guide, safe guide is fixedlyed connected with rotating jacket (9) by joint (8), the stomidium pine that rotating jacket is passed in socket (10) is enclosed within on the rotating jacket, and the relative socket of rotating jacket is free to rotate and do not deviate from.
2, joint according to claim 1, it is characterized in that: pressed joint is connected with a safe guide (7) by an adapter sleeve (5), safe guide (7) is stepped, its small end is sleeved in the adapter sleeve movingly, and radially crossed one along it and cut off pin (6), adapter sleeve is fixedlyed connected with safe guide, its big end is an inner thread sleeve, the centre is rotary with a nipple (8), the fixedly connected rotating jacket of the other end of nipple (9).
3, joint according to claim 1 is characterized in that: the stomidium pine that rotating jacket is passed in socket (10) is enclosed within on the rotating jacket, and the shaft shoulder of socket is held the stage in the rotating jacket, and rotating jacket freely rotates and do not deviate from relative to socket.
4, joint according to claim 1 is characterized in that: wedge clamping block (2) adopts hydraulic pressure stationary fit mode to be pressed in the gripping sleeve (3) by hydraulic means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02235734 CN2554334Y (en) | 2002-05-27 | 2002-05-27 | Continuous sucker rod joint of fibre reinforced composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02235734 CN2554334Y (en) | 2002-05-27 | 2002-05-27 | Continuous sucker rod joint of fibre reinforced composite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2554334Y true CN2554334Y (en) | 2003-06-04 |
Family
ID=33710189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02235734 Expired - Lifetime CN2554334Y (en) | 2002-05-27 | 2002-05-27 | Continuous sucker rod joint of fibre reinforced composite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2554334Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089114A (en) * | 2016-07-22 | 2016-11-09 | 胜利油田新大管业科技发展有限责任公司 | A kind of high temperature resistant built-up joint of continuous sucker rod made of fiber reinforced composition and method |
| CN108286415A (en) * | 2018-01-24 | 2018-07-17 | 中国石油大学(华东) | Carbon fibre pumping rod and pumping rod made by steel jointing and its installation method |
-
2002
- 2002-05-27 CN CN 02235734 patent/CN2554334Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089114A (en) * | 2016-07-22 | 2016-11-09 | 胜利油田新大管业科技发展有限责任公司 | A kind of high temperature resistant built-up joint of continuous sucker rod made of fiber reinforced composition and method |
| CN106089114B (en) * | 2016-07-22 | 2019-03-19 | 胜利油田新大管业科技发展有限责任公司 | A kind of continuous sucker rod made of fiber reinforced composition high temperature resistant built-up joint and method |
| CN108286415A (en) * | 2018-01-24 | 2018-07-17 | 中国石油大学(华东) | Carbon fibre pumping rod and pumping rod made by steel jointing and its installation method |
| CN108286415B (en) * | 2018-01-24 | 2019-09-13 | 中国石油大学(华东) | Carbon fibre pumping rod and pumping rod made by steel jointing and its installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENGLI OILFIELD FURIUTE OIL EQUIPMENT CO.,LTD. Free format text: FORMER NAME OR ADDRESS: ENGINEERING MACHINERY GENERAL FACTORY, SHENGLI PETROLEUM ADMINISTRATION |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Shengli Oil Field Furuite Petroleum Equipment Co., Ltd. Patentee before: Engineering Machinery Plant, Shengli Petroleum Administration |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120527 Granted publication date: 20030604 |