CN2339743Y - Self-rotating type coupling-uncoupling device - Google Patents
Self-rotating type coupling-uncoupling device Download PDFInfo
- Publication number
- CN2339743Y CN2339743Y CN 98212493 CN98212493U CN2339743Y CN 2339743 Y CN2339743 Y CN 2339743Y CN 98212493 CN98212493 CN 98212493 CN 98212493 U CN98212493 U CN 98212493U CN 2339743 Y CN2339743 Y CN 2339743Y
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- China
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- pole
- center
- lower body
- top connection
- track
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- Expired - Lifetime
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Abstract
The utility model relates to a self-rotating type coupling-uncoupling device which is used for coupling and uncoupling of a sucker rod and a piston when the diameter of the piston is larger than the diameter of an oil pipe in an oil pumping well in an oil field, and is composed of an upper body and a lower body. The upper body is composed of an upper joint, a track pipe and an anti-rotation pin. The lower body is composed of a center rod, a track sleeve, a key block, a shim, a spring and a lower joint. When the upper body and the lower body are coupled, the upper body and the lower body realize butt-coupling after the upper body and the lower body automatically rotate 90 DEG relatively. After the upper body and the lower body are in butt-joint into integration, the upper body and the lower body go up the opening of a pump, and automatically rotate 90 DEG again so as to realize uncoupling. The coupling-uncoupling device has a small appearance size under the condition of satisfying strength requirement, and satisfies the requirements of various pump diameters.
Description
Sucker rod and piston connected and separatory on-off connector when the utility model related to a kind of oil-field oil pumper well operations.
Oil well by the oil well pump pumping, during pipe aperture, need piston through on when piston is straight greater than pump with pump barrel G.I.H, lower sucker rod then, after the on-off connector upper and lower body butt joint that is connected on sucker rod bottom and piston top respectively, piston and sucker rod are joined together could pump.During well workover, also need piston just to trip out instrument in the well with after sucker rod separates.Finishing this process is exactly that the on-off connector upper and lower body separates.The on-off connector of prior art comes with some shortcomings at present, as the big pump on-off connector of the patent No. 92202926.1 no releasing-joints, its butt joint need be slit into a plurality of bodies of connection, because it bears alternating stresses, cause stress to concentrate easily after being slit into the bar body, also be difficult to guarantee crudy, the properties of product instability, the disconnected phenomenon of bar body root appears associating in on-the-spot the use.The on-off connector that also has needs ground to rotate sucker rod when uncoupling could realize uncoupling, and this uncoupling mode need be changed a social system oil well pump, increases the oil well pump expense, and the execute-in-place complexity is used inconvenience simultaneously.
The purpose of this utility model is to avoid existing on-off connector stressed bad, fracture and awkward weak point occur, and a kind of intensity height is provided, the service-strong on-off connector, and easy to use, simple to operate.
The purpose of this utility model is achieved in that it is made up of upper body and lower body.The upper body is made up of top connection, orbitron, anti-rotation pin; Lower body is made up of center-pole, track cover, key piece, pad, spring, lower contact.Lower body is connected on the piston of oil well pump, and with pump elder generation G.I.H, the upper body is connected on the sucker rod lower end, and with the sucker rod G.I.H, when upper and lower body contacted, sucker rod and piston just can join together realized oil pumping.When instrument trips out in well workover need be with well, at first sucker rod will be separated with piston, just need on-off connector upper and lower body uncoupling, the method for uncoupling is to carry sucker rod on the ground, after mentioning pumping hole on the on-off connector, and the upper and lower body uncoupling.
The inside of top connection has processed the slotted eye that there is semi arch at two ends, and there is the circular hole of a diameter greater than slotted eye length the slotted eye upper end.Also processed identical slotted eye in the orbitron, and be fixed in the circular hole of top connection middle part with the anti-rotation pin, make its slotted eye of two alignment, the effect of orbitron is that the head of center-pole is introduced in the slotted eye, the top connection bottom has processed spiral rail groove, and this spiral rail groove cooperates with the spiral track key that the track of lower body puts realizes on-off connector butt joint and uncoupling.
The center-pole head of lower body be processed into the upper body in the ellipsoid of the two ends band semi arch that matches of slotted eye, screw thread is arranged at the center-pole bottom, this screw thread connects with the lower contact internal thread, has processed keyway on the center-pole screw thread, a shoulder is arranged at keyway top.Track has put the spiral track key, and keyway is arranged in the hole.The key piece is installed in the keyway of center-pole and track cover, and the track cover is installed on the center-pole, and spring housing is on center-pole and by lower contact screw thread pretension.Key piece, track cover, pad relative fixed under the initial tension of spring effect is integral, and making track be enclosed within the center-pole surface can only upper and lowerly slide, and can not rotate, and the upward beginning position of slip is spacing by the shoulder on the center-pole.
Lower body is connected on the oil well pump piston, and with pump elder generation G.I.H, the upper body is connected on the sucker rod lower end, and the back is with the sucker rod G.I.H.In upper and lower body when contact,, the center-pole head is introduced in the slotted eye under the effect of orbitron, and this moment center-pole and top connection can only upper and lower relative motion, can not relatively rotate, when top connection continues when descending, the spiral track key contacts of the spiral rail groove of top connection and track cover, and tabling.Top connection continues descending, promotes track cover compression spring, makes spring energy-storage.After the center-pole head puts in place, its space of living in allows the center-pole head rotation, at this moment, spring releases energy, and to promote the track cover up, under the spiral rail groove effect of spiral track key that track puts, top connection bottom, produce moment of torsion, make the automatic relative half-twist of center-pole and top connection, thereby make the two ends of center-pole head have the ellipsoid of semi arch to become 90 °, realized the butt joint of on-off connector upper and lower body this moment with the slotted eye of top connection.
When instrument trips out in well workover need be with well, at first sucker rod and piston to be thrown off, just need on-off connector upper and lower body uncoupling.The method of uncoupling is to carry sucker rod on the ground, when mentioning pumping hole on the on-off connector, because the pumping hole internal diameter is less than the cover of the track on on-off connector external diameter, the track cover is blocked, at the spiral rail groove of top connection, under the spiral track key and the effect of key piece of track cover, the automatic half-twist of top connection and center-pole, the ellipsoid of center-pole head is alignd with the slotted eye of top connection, realize the on-off connector uncoupling.
The utility model can get a desired effect, and is simple to operate, only need transfer, on carry that sucker rod just can achieve a butt joint, the purpose of uncoupling, problems such as the stress that its component can avoid alternating stresses to cause is concentrated, thereby the intensity height, the reliable operation of going into the well, success rate height.Because its particular structure, under the situation that can satisfy requirement of strength, appearance and size is less, can satisfy the demand in multiple pump footpath, applied range.
Accompanying drawing 1 is partly cuing open and local complete section figure of the utility model butt joint back general assembly drawing.
Accompanying drawing 2 is upper body of the present utility model assembly drawings.
Accompanying drawing 3 is lower body assembly drawings of the present utility model.
Accompanying drawing 4 is from the B-B sectional view in the accompanying drawing 1.
Accompanying drawing 5 is track expanded views of accompanying drawing 1 middle orbit pipe.
Accompanying drawing 6 is top connection bottom spiral rail groove expanded views in the accompanying drawing 1.
Accompanying drawing 7 is spiral track key expanded views that accompanying drawing 1 middle orbit puts.
Accompanying drawing 8 is from the A-A sectional view in the accompanying drawing 1.
Details are as follows to embodiment of the present utility model in conjunction with the accompanying drawings: each component code name in the accompanying drawing, the 1st, top connection, the 2nd, anti-rotation pin, the 3rd, orbitron, the 4th, center-pole, the 5th, track cover, the 6th, key piece, the 7th, pad, the 8th, spring, the 9th, lower contact.Can see the general structure of the utility model when docking and the assembly relation of each parts clearly from accompanying drawing 1.Become two parts behind the utility model uncoupling: upper body, lower body, shown in the accompanying drawing 2,3.
The upper body is made up of top connection 1, anti-rotation pin 2, orbitron 3.The upper body is connected on the rod string bottom.The top of top connection 1 has screw thread to connect with sucker rod, and the C place is the slotted eye that there is semi arch at two ends, and the D place is the circular hole of diameter greater than slotted eye length, and spiral rail groove E is arranged at the bottom.Opened in the orbitron 3 and the similar slotted eye of top connection, the alignment back is fixing by anti-rotation pin 2 mutually.The effect of orbitron is that the head F that goes up in any direction center-pole 4 guides in the slotted eye.
Lower body is made up of center-pole 4, track cover 5, key piece 6, pad 7, spring 8, lower contact 9.Lower body is connected on the piston.The head of center-pole 4 is processed into the ellipsoid F of the two ends band semi arch that matches with top connection 1, and screw thread is arranged at the bottom, and screw thread top has keyway, and a shoulder is arranged at keyway top.On the track cover 5 spiral track key G is arranged, keyway is arranged in the hole.Key piece 6 is installed in the keyway of center-pole and track cover, and the track cover is installed on the center-pole, and spring 8 is enclosed within on the center-pole and by lower contact 9 screw thread pretensions.Track cover 5 can only be done upper and lower slip under the effect of key piece, can not rotate, and it is spacing by the shoulder on the center-pole to slide into initial point.
During the operation butt joint, the upper body contacts with lower body, and center-pole 4 enters in the top connection 1, under the effect of orbitron 3, the head F of center-pole is introduced in the slotted eye of orbitron and top connection, and can only do axial relative motion between center-pole and the top connection this moment, can not relatively rotate.After center-pole head F entered slotted eye, the lower surface of top connection just contacted with the spiral track key G of track cover 5.Spiral rail groove E and spiral track key G tabling, because center-pole and top connection can not be rotated, and can not rotate between spiral track key and the center-pole, therefore, when top connection continues when descending, top connection promotes track and overlaps 5 descending compression springs 8, make spring energy-storage, be up to the circular space D place of top connection up to center-pole head F, at this moment, center-pole and top connection can relatively rotate, under the effect of spring stored energy, promote track and overlap 5 uply, spiral rail groove E and spiral track key G are chimeric mutually, the generation moment of torsion, make the automatic relative half-twist of center-pole and top connection, reach the state of accompanying drawing 4, finish docking operation, sucker rod just can drive the piston motion oil pumping.
During uncoupling, on carry sucker rod, on-off connector goes upward to pumping hole, and the pumping hole internal diameter is less than the external diameter of on-off connector lower body middle orbit cover 5, and the track cover is blocked, carry in the continuation, will make track cover compression spring 8 backs descending, spiral track key G will withdraw from spiral rail groove E, forces top connection 1 and center-pole 4 automatic half-twists when withdrawing from, automatically the club head F of half-twist rear center overlaps with the slotted eye C of top connection, finishes uncoupling.After finishing uncoupling, spring 8 promotes track cover 5 and resets, and therefore, this on-off connector can repeat butt joint in well.
Claims (6)
1, a kind ofly realize that sucker rod connects the rotation type on-off connector of throwing off usefulness with piston when being used for oil-well pump of oil well piston diameter that oil-field oil pumper produces greater than pipe aperture, it divides upper body and lower body, the upper body is by top connection (1), anti-rotation pin (2), orbitron (3) is formed, lower body is by center-pole (4), track cover (5), key piece (6), pad (7), spring (8), lower contact (9) is formed, it is characterized in that: the upper body connects with sucker rod, lower body connects with piston, on, automatically half-twist butt joint relatively when lower body contacts goes upward to the automatic again half-twist of pumping hole and realizes uncoupling after butt joint is integral.
2, rotation type on-off connector according to claim 1 is characterized in that: processed the slotted eye that there is semi arch at two ends in the top connection (1), there is the circular hole of a diameter greater than slotted eye length the slotted eye upper end, and spiral rail groove is arranged at the top connection bottom.
3, rotation type on-off connector according to claim 1 is characterized in that having processed track on the orbitron (3), and inside has processed and the identical slotted eye of top connection (1), and the alignment of two slotted eyes is installed.
4, rotation type on-off connector according to claim 1 is characterized in that the head of center-pole (4) is processed into the ellipsoid of the two ends band semi arch that matches with top connection (1), and screw thread is arranged at the bottom, and screw thread top has keyway, and a shoulder is arranged at keyway top.
5, rotation type on-off connector according to claim 1 is characterized in that: the track cover has the spiral track key on (5), and keyway is arranged in the hole.
6, rotation type on-off connector according to claim 1, it is characterized in that: key piece (6) is installed in the keyway of center-pole (4) and track cover (5), the track cover is installed on the center-pole (4), and spring (8) is enclosed within on the center-pole (4) and by lower contact (9) screw thread pretension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98212493 CN2339743Y (en) | 1998-04-02 | 1998-04-02 | Self-rotating type coupling-uncoupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98212493 CN2339743Y (en) | 1998-04-02 | 1998-04-02 | Self-rotating type coupling-uncoupling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2339743Y true CN2339743Y (en) | 1999-09-22 |
Family
ID=33966783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98212493 Expired - Lifetime CN2339743Y (en) | 1998-04-02 | 1998-04-02 | Self-rotating type coupling-uncoupling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2339743Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321588A (en) * | 2013-07-17 | 2013-09-25 | 濮阳市东昊机械电子有限公司 | Sealing disengaging-connecting device |
-
1998
- 1998-04-02 CN CN 98212493 patent/CN2339743Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321588A (en) * | 2013-07-17 | 2013-09-25 | 濮阳市东昊机械电子有限公司 | Sealing disengaging-connecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |