CN104141459A - Automatic clutch sucker rod separation prevention device - Google Patents
Automatic clutch sucker rod separation prevention device Download PDFInfo
- Publication number
- CN104141459A CN104141459A CN201410269344.2A CN201410269344A CN104141459A CN 104141459 A CN104141459 A CN 104141459A CN 201410269344 A CN201410269344 A CN 201410269344A CN 104141459 A CN104141459 A CN 104141459A
- Authority
- CN
- China
- Prior art keywords
- hole
- connecting rod
- sucker rod
- automatic clutch
- releasing device
- 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.)
- Granted
Links
Landscapes
- Transmission Devices (AREA)
Abstract
The invention discloses an automatic clutch sucker rod separation prevention device in the field of sucker rod connecting devices. An axial through hole is formed in a body of the device; a lower opening of the through hole is connected with a lower joint through an internal thread; a connecting rod is arranged in the through hole; a circular truncated cone matched with the through hole in inner diameter is arranged in the middle of the connecting rod; an arc-shaped circular groove and a plurality of steel balls are arranged between the circular truncated cone and the inner wall of the through hole; the upper end of the connecting rod extends out of the body to be in threaded connection with an upper joint; a floating body is arranged in the through hole; guiding grooves are formed in the side surface of the floating body; positioning screws which are radially inserted into the guiding grooves are arranged on the body; couplings which are used for transmitting the torque and capable of being separated and combined axially are arranged between the lower end of the floating body and the upper end of the lower joint; a thread at the upper end of the connecting rod and a thread at the upper end of the lower joint are identical in thread direction; the thread at the upper end of the connecting rod and a thread at the lower end of the connecting rod are opposite in thread direction. By the aid of the device, accidents that sucker rods fall into wells due to breakage and separation of sucker rod strings can be effectively prevented.
Description
Technical field
The present invention relates to a kind of oil field sucker rod pumping equipment, particularly a kind of pumping rod connecting device.
Background technology
In prior art, there is a kind of rotary anti-drop sucker rod box cupling, its application number: 201320727064.2; The applying date: 2013-11-18; Publication number: CN 203570217U; Open day: 2014-04-30; This device comprises top connection and lower contact, the top connection lower end box cupling body that has been threaded, in box cupling body, be provided with shoulder hole, aperture, shoulder hole upper end is greater than aperture, lower end, rotary body in the middle of being equipped with in shoulder hole, it is outer and be threaded with lower contact that shoulder hole is stretched out in middle rotary body lower end, between middle rotary body upper end and top connection, be equipped with some supporting steel balls between middle rotary body and shoulder hole inner bottom part.This installs between upper and lower joint both can bear axial load, can relatively rotate again, can prevent to a certain extent the loosening of sucker rod and screw threads of coupler and thread off.Its weak point is: this device can not be for transmitting torque, in Screw Pump of Oil Field oil extraction system, oil well depth reaches even several kms of hundreds of rice, and rod string is the elongate rod being formed by connecting by some sucker rods and box cupling, when adopting screw rod to recover the oil, ground installation drives rod string to be rotated in the forward, transmitting torque carrys out drive screw pump, now underground sucker rod post is suffered, and to be rotated in the forward moment of torsion very large, can make it become twisted shape, when screw pump system maybe needs to shut down because of fault, act on the energy back High Rotation Speed that moment of torsion must discharge rod string savings that is rotated in the forward on rod string, in this case, very easily cause the screw thread of sucker rod and box cupling junction to thread off, even cause the fracture of sucker rod, cause down-hole accident, the oil well maintenance of being forced to stop production.
Summary of the invention
The object of the present invention is to provide a kind of automatic clutch Anti-releasing device for sucker rod; can come drive screw pump to carry out oil producing operation by transmitting torque; meanwhile, when screw pump system maybe needs to shut down because of fault, the sucker rod that is disconnected, de-and that cause that can effectively the prevent rod string well accident that falls.
The object of the present invention is achieved like this: a kind of automatic clutch Anti-releasing device for sucker rod, comprise top connection, body and lower contact, described body is cylindrical, body is provided with the through hole that axially runs through body, the end opening position of through hole is connected with lower contact through internal thread, in described through hole, is provided with connecting rod, and connecting rod middle part is provided with the round platform matching with through hole internal diameter, between described round platform and through hole inwall, be provided with corresponding arc-shaped ring groove, in arc-shaped ring groove, be provided with some steel balls; Connecting rod upper end stretches out that this is external and be threaded with top connection, in through hole, can be provided with axially slidably buoyancy body, and buoyancy body side is provided with the gathering sill paralleling with through hole axis, and body is provided with the dog screw radially inserting in gathering sill; Buoyancy body upper end is threaded with connecting rod lower end; Between buoyancy body lower end and lower contact upper end, be provided with for transmitting torque can axial separation and the male part of combination; The screw thread of connecting rod upper end with the ridge of lower contact upper end to identical; The screw thread of connecting rod upper end with the ridge of connecting rod lower end to contrary.
When the present invention works, top connection is connected respectively at sucker rod with lower contact, and this device also can be used in a plurality of series connection, when normal work, top connection rotating drive connecting rod rotates, between connecting rod and buoyancy body, relatively rotate, drive buoyancy body descending, male part is intercoupled, when buoyancy body moves downward extreme position, buoyancy body can not continue to move down, and the moment of torsion from top connection will drive body, lower contact to rotate together, and transmitting torque comes drive screw pump to carry out oil producing operation; When screw pump system maybe needs to shut down because of fault; the reversion of reverse rotation torque drive connecting rod, moves in buoyancy body, until male part departs from mutually; body and lower contact is subsequently free to rotate, the sucker rod that is disconnected, de-and that cause that effectively the prevents rod string well accident that falls.The present invention can be used in the oil well of screw rod oil recovery.
As a further improvement on the present invention, described male part comprises rectangle projection and the rectangular recess cooperatively interacting.Described rectangle projection can be arranged on buoyancy body lower end, and rectangular recess is arranged on lower contact upper end.Rectangle projection also can be arranged on lower contact upper end, and rectangular recess is arranged on to buoyancy body lower end.Said structure all has easy to process, the reliable advantage of separated and combination.
As a further improvement on the present invention, described male part comprises cross projection and the cross groove cooperatively interacting.Cross projection and cross groove cooperatively interact, and can transmit larger moment of torsion, and its supporting capacity is strong, and easy to process.In addition, male part can also be other polygonal shapes.
Reliable for guaranteeing guiding, buoyancy body is stressed evenly, and described gathering sill has a plurality of in buoyancy body peripheral distribution.
For ease of steel ball is installed, be provided with for the side down hole of steel ball be installed corresponding with arc-shaped ring groove on described body, plug has been threaded on side down hole.
As progress one step of the present invention, improve, the position of upper at through hole on described body is provided with limited step, and described round platform upper surface correspondence is arranged on limited step downside.When steel ball is worn, limited step can limit connecting rod, avoids it to deviate from through hole and causes rod string to come off.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is that the A-A of Fig. 1 is to view.
Fig. 3 is that the B-B of Fig. 1 is to view.
Fig. 4 is another structural representation of male part.
Wherein, 1 top connection, 2 connecting rods, 201 round platforms, 3 plugs, 4 gathering sills, 5 rectangle projections, 5a cross projection, 6 rectangular recess, 7 lower contacts, 8 dog screws, 9 buoyancy body, 10 bodies, 1001 limited steps, 11 steel balls.
The specific embodiment
As Figure 1-3, for a kind of automatic clutch Anti-releasing device for sucker rod, its structure mainly comprises top connection 1, body 10 and lower contact 7 etc., body 10 is cylindrical, body 10 is provided with the through hole that axially runs through body 10, the end opening position of through hole is connected with lower contact 7 through internal thread, in through hole, be provided with connecting rod 2, connecting rod 2 middle parts are provided with the round platform 201 matching with through hole internal diameter, between round platform 201 and through hole inwall, be provided with corresponding arc-shaped ring groove, in arc-shaped ring groove, be provided with some steel balls 11, connecting rod 2 can freely be rotated with respect to body 10; Be provided with for the side down hole of steel ball 11 be installed corresponding with arc-shaped ring groove on body 10, plug 3 has been threaded on side down hole; Connecting rod 2 upper ends are stretched out outside body 10 and are threaded with top connection 1, in through hole, can be provided with axially slidably buoyancy body 9, buoyancy body 9 sides are provided with the gathering sill 4 paralleling with through hole axis, gathering sill 4 has a plurality of in buoyancy body 9 peripheral distribution, body 10 is provided with the dog screw 8 radially inserting in gathering sill 4; Buoyancy body 9 upper ends are threaded with connecting rod 2 lower ends; Between buoyancy body 9 lower ends and lower contact 7 upper ends, be provided with for transmitting torque can axial separation and the male part of combination; Male part comprises rectangle projection 5 and the rectangular recess 6 cooperatively interacting, and wherein, rectangle projection 5 is arranged on buoyancy body 9 lower ends, and rectangular recess 6 is arranged on lower contact 7 upper ends; Also can conversely rectangle projection 5 be arranged on to lower contact 7 upper ends, rectangular recess 6 is arranged on buoyancy body 9 lower ends; On rectangle projection 5 and rectangular recess 6, be respectively equipped with chamfering, to can be plugged in together well between the two.The screw thread of connecting rod 2 upper ends with the ridge of lower contact 7 upper ends to identical; The screw thread of connecting rod 2 upper ends with the ridge of connecting rod 2 lower ends to contrary.
Position of upper at through hole on body 10 is provided with limited step 1001, and described round platform 201 upper surface correspondences are arranged on limited step 1001 downsides.When steel ball 11 is worn, limited step 1001 can limit connecting rod 2, avoids it to deviate from through hole and causes rod string to come off.
During work, top connection 1 is connected respectively at sucker rod with lower contact 7, this device also can be used by a plurality of series connection access rod strings, when normal work, top connection 1 rotating drive connecting rod 2 rotates, between connecting rod 2 and buoyancy body 9, relatively rotate, drive buoyancy body 9 descending, rectangle projection 5 is inserted in rectangular recess 6, both intercouple, and when buoyancy body 9 moves downward extreme position, buoyancy body 9 can not continue to move down, the moment of torsion from top connection 1 will drive body 10, lower contact 7 to rotate together, and transmitting torque drive screw pump carries out oil producing operation; When screw pump system maybe needs to shut down because of fault; torque drive connecting rod 2 reversions of reverse rotation; in buoyancy body 9, move; until rectangle projection 5 and the interior mutual disengaging of rectangular recess 6; body 10 and lower contact 7 is subsequently free to rotate, the sucker rod that is disconnected, de-and that cause that can effectively the prevent rod string well accident that falls.
As shown in Figure 4, male part of the present invention can also be cross projection 5a and the cross groove cooperatively interacting, and both are transmitting torque well.
The present invention is not limited to above-described embodiment; on the basis of technical scheme disclosed by the invention; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in protection scope of the present invention.
Claims (8)
1. an automatic clutch Anti-releasing device for sucker rod, comprise top connection, body and lower contact, described body is cylindrical, body is provided with the through hole that axially runs through body, the end opening position of through hole is connected with lower contact through internal thread, it is characterized in that: in described through hole, be provided with connecting rod, connecting rod middle part is provided with the round platform matching with through hole internal diameter, between described round platform and through hole inwall, be provided with corresponding arc-shaped ring groove, in arc-shaped ring groove, be provided with some steel balls; Connecting rod upper end stretches out that this is external and be threaded with top connection, in through hole, can be provided with axially slidably buoyancy body, and buoyancy body side is provided with the gathering sill paralleling with through hole axis, and body is provided with the dog screw radially inserting in gathering sill; Buoyancy body upper end is threaded with connecting rod lower end; Between buoyancy body lower end and lower contact upper end, be provided with for transmitting torque can axial separation and the male part of combination; The screw thread of connecting rod upper end with the ridge of lower contact upper end to identical; The screw thread of connecting rod upper end with the ridge of connecting rod lower end to contrary.
2. automatic clutch Anti-releasing device for sucker rod according to claim 1, is characterized in that: described male part comprises rectangle projection and the rectangular recess cooperatively interacting.
3. automatic clutch Anti-releasing device for sucker rod according to claim 2, is characterized in that: described rectangle projection is arranged on buoyancy body lower end, and rectangular recess is arranged on lower contact upper end.
4. automatic clutch Anti-releasing device for sucker rod according to claim 2, is characterized in that: described rectangle projection is arranged on lower contact upper end, and rectangular recess is arranged on buoyancy body lower end.
5. automatic clutch Anti-releasing device for sucker rod according to claim 1, is characterized in that: described male part comprises cross projection and the cross groove cooperatively interacting.
6. according to the automatic clutch Anti-releasing device for sucker rod described in claim 1-5 any one, it is characterized in that: described gathering sill has a plurality of in buoyancy body peripheral distribution.
7. according to the automatic clutch Anti-releasing device for sucker rod described in claim 1-5 any one, it is characterized in that: be provided with for the side down hole of steel ball be installed corresponding with arc-shaped ring groove on described body, plug has been threaded on side down hole.
8. according to the automatic clutch Anti-releasing device for sucker rod described in claim 1-5 any one, it is characterized in that: the position of upper at through hole on described body is provided with limited step, described round platform upper surface correspondence is arranged on limited step downside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410269344.2A CN104141459B (en) | 2014-06-17 | 2014-06-17 | Automatic clutch Anti-releasing device for sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410269344.2A CN104141459B (en) | 2014-06-17 | 2014-06-17 | Automatic clutch Anti-releasing device for sucker rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104141459A true CN104141459A (en) | 2014-11-12 |
| CN104141459B CN104141459B (en) | 2016-08-24 |
Family
ID=51850771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410269344.2A Active CN104141459B (en) | 2014-06-17 | 2014-06-17 | Automatic clutch Anti-releasing device for sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104141459B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715208A (en) * | 2016-02-15 | 2016-06-29 | 中石化石油工程技术服务有限公司 | Drill stem rotation control device for oriented drilling |
| CN109594932A (en) * | 2019-01-30 | 2019-04-09 | 卞洪丽 | A kind of oil field tube rod anti-dropping device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4068868A (en) * | 1975-09-02 | 1978-01-17 | Vetco Offshore Industries, Inc. | Flexible joints for marine risers |
| CN201059164Y (en) * | 2007-07-10 | 2008-05-14 | 滨州市远宇化工机械有限责任公司 | Novel torsion-resistant disconnecting-proof pumping rod |
| CN101824971A (en) * | 2010-04-27 | 2010-09-08 | 辽宁江城石油技术服务有限公司 | Pumping-assisting centering dropout prevention device of pumping rod |
| CN202882789U (en) * | 2012-11-21 | 2013-04-17 | 徐洪林 | Anti-tripping device of sucker rod |
| CN203570217U (en) * | 2013-11-18 | 2014-04-30 | 济源市石油机械有限公司 | Rotation type disengagement-prevention sucker rod coupling |
| CN203925320U (en) * | 2014-06-17 | 2014-11-05 | 济源市石油机械有限公司 | Automatic clutch Anti-releasing device for sucker rod |
-
2014
- 2014-06-17 CN CN201410269344.2A patent/CN104141459B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4068868A (en) * | 1975-09-02 | 1978-01-17 | Vetco Offshore Industries, Inc. | Flexible joints for marine risers |
| CN201059164Y (en) * | 2007-07-10 | 2008-05-14 | 滨州市远宇化工机械有限责任公司 | Novel torsion-resistant disconnecting-proof pumping rod |
| CN101824971A (en) * | 2010-04-27 | 2010-09-08 | 辽宁江城石油技术服务有限公司 | Pumping-assisting centering dropout prevention device of pumping rod |
| CN202882789U (en) * | 2012-11-21 | 2013-04-17 | 徐洪林 | Anti-tripping device of sucker rod |
| CN203570217U (en) * | 2013-11-18 | 2014-04-30 | 济源市石油机械有限公司 | Rotation type disengagement-prevention sucker rod coupling |
| CN203925320U (en) * | 2014-06-17 | 2014-11-05 | 济源市石油机械有限公司 | Automatic clutch Anti-releasing device for sucker rod |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715208A (en) * | 2016-02-15 | 2016-06-29 | 中石化石油工程技术服务有限公司 | Drill stem rotation control device for oriented drilling |
| CN105715208B (en) * | 2016-02-15 | 2018-07-17 | 中石化石油工程技术服务有限公司 | A kind of drill string rotating control device for directed drilling |
| CN109594932A (en) * | 2019-01-30 | 2019-04-09 | 卞洪丽 | A kind of oil field tube rod anti-dropping device |
| CN109594932B (en) * | 2019-01-30 | 2022-05-17 | 扬州市油田金达实业有限公司 | Oil field pipe pole anticreep ware |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104141459B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103726804B (en) | Hydraulic packer and mounting method thereof | |
| CN104358524B (en) | A kind of coiled tubing speed tubing string and the method for liquid discharging gas producing | |
| CN105443057A (en) | Torque-withstanding type double-acting releasing tool | |
| CN203925320U (en) | Automatic clutch Anti-releasing device for sucker rod | |
| CN107044260A (en) | Drive casing appliances in a kind of screw drive fully mechanical top | |
| CN203702075U (en) | Hydraulic packer | |
| CN104141459A (en) | Automatic clutch sucker rod separation prevention device | |
| CN205577874U (en) | A connection structure for liner hanger sends into nipple joint | |
| CN104405295B (en) | A kind of anti-torquer of pipe drilling well continuously | |
| CN204620940U (en) | The mechanical fast joint structure of rod iron and nonprestressed reinforcement | |
| CN202970522U (en) | Screw pump oil extraction polished rod anti-dropping device | |
| CN206477792U (en) | Drive casing appliances in a kind of screw drive fully mechanical top | |
| CN204402358U (en) | Device is entered under a kind of sleeve rotating circulation | |
| CN103982153A (en) | Ball injecting de-blocking hydraulic tubing anchor | |
| CN102635315B (en) | Joint with hole-repairing drill bit | |
| CN105484692B (en) | A kind of comprehensive shaft mouth operation instrument and its application method | |
| CN202441295U (en) | Safety relief device for pipe column | |
| CN203050579U (en) | Mechanical release device for coiled tubing fracturing | |
| CN201184157Y (en) | Oil well hydraulic unfreezing machine | |
| CN204175279U (en) | A kind of test rigidity weighted lever | |
| CN103015935A (en) | Top-down pull rod type expansion pipe structure | |
| CN203476294U (en) | Throwing-in and pulling-out type submersible screw pump | |
| CN103912231A (en) | Drill rod male-thread fisher | |
| CN102926694A (en) | Mechanical releasing device for coiled-tubing fracturing | |
| CN206458320U (en) | On to anti-well rig reaming bit and starter erecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |