CN202689960U - Tubing pressure test water injection spindle and quick-change connector component - Google Patents
Tubing pressure test water injection spindle and quick-change connector component Download PDFInfo
- Publication number
- CN202689960U CN202689960U CN 201220335582 CN201220335582U CN202689960U CN 202689960 U CN202689960 U CN 202689960U CN 201220335582 CN201220335582 CN 201220335582 CN 201220335582 U CN201220335582 U CN 201220335582U CN 202689960 U CN202689960 U CN 202689960U
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- China
- Prior art keywords
- water filling
- main shaft
- filling main
- quick coupler
- hydraulic quick
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- Expired - Fee Related
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Abstract
The utility model relates to a mechanical combination component for performing screwing plugging pressure test for tubing in the operation preparation process of the oilfield oil exploitation industry, in particular to a tubing pressure test water injection spindle and a quick-change connector component. A quick-change connector is sleeved outside the front of the water injection spindle, a non-return nut is fixedly arranged at the front end of the water injection spindle and used for fastening the quick-change connector, the middle of the non-return nut is provided with a through hole, the side wall of the water injection spindle is provided with a water injection hole, the center of the front of the water injection spindle is provided with a center hole communicated with the water injection hole, the rear end of the water injection spindle is provided with a screwing power inlet, and the outer surface of the quick-change connector is provided a tubing thread. The mechanical combination component is simple in structure, reliable in sealing and quite rapid and convenient to change.
Description
Technical field
The utility model relates in the operation set-up procedure in the oil field oil exploitation industry twists a kind of mechanical combiner that button shutoff pressure testing detects to oil pipe.
Background technology
Oil pipe is the main material of oil extraction in oil field unit consumption, raising along with energy-saving and emission-reduction and the requirement of reduction cost for oil production, the oil field is also increasing to old oil pipe reparation inspecting force, detecting most important final operation is exactly pressure testing, every of pressure testing in the repair line all will be carried out, every day every bench teat press the pressure testing radical at the 300-600 root, every pressure testing all will repeatedly be carried out the stubborn work of pulling of upper shackle to oil pipe, and injection low pressure, water under high pressure, therefore twisting button water filling axle and jointing thereof is the important high pulling torque that bears, high pressure, the parts of tight envelope, under the stressed abrasive conditions of iterative cycles, also be main easily worn part simultaneously.
For many years, the production unit of much twisting button oil pipe pressure test equipment is all stubbornly buckled research and the improvement that has carried out the water filling coupling part to what dock with oil pipe, although make some progress, convenience and the reliability requirement of distance use also have certain distance.Particularly oil pipe has plurality of specifications, regular size just has six kinds, adopt a bench teat press that six kinds of specification oil pipes are carried out pressure testing, proposed higher to meet the need just for the pressure testing butted part, not only normal wear need to be changed joint, and change specification and also will change corresponding joint, therefore guaranteeing it is particularly important whether the convenience of replacing seems on the reliable basis, past, some units often twisting the simultaneously supporting replacing of button water filling axle and joint, waste time and energy, after the unit of serving only change blank area after improving, but owing to relating to transmitting large torque and sealing the multiple high requests such as withstand voltage, often do complicatedly, change trouble, time-consuming longer.
Summary of the invention
The utility model is exactly the deficiency for the prior art scheme, designs a kind of hydraulic quick coupler and twists the supporting new combining structure that is connected of button water filling main shaft.This combining structure is simple, and sealing is reliable, changes efficient and convenient especially.
The technical scheme that the utility model provides is:
Oil pipe pressure test water filling main shaft and hydraulic quick coupler assembly, the anterior overcoat of water filling main shaft has hydraulic quick coupler, the front end of water filling main shaft is fixedly installed anti-return nut, anti-return nut tightens up hydraulic quick coupler, in the middle of the anti-return nut through hole is arranged, water filling main shaft sidewall has water injection hole, and water filling main shaft front central arranges centre bore and is communicated with water injection hole, the water filling rear-end of spindle is provided with to twist pulls the power access port, and the hydraulic quick coupler external surface is provided with tubing round thread.
Concrete, being provided with sealing ring between water filling main shaft and the hydraulic quick coupler, sealing ring is encircled on the external diameter of water filling main shaft.
Concrete, hydraulic quick coupler is socketed on the water filling main shaft external diameter, presses close to the locating ring that is socketed in water filling main spindle multiple spline tooth root section, and the external spline teeth engagement of the inner spline gear of hydraulic quick coupler and water filling main shaft forms spline joint.
Water filling main shaft of the present utility model is pulled power and water filling movable sealing head is connected with twisting, and hydraulic quick coupler is connected with oil pipe end screw thread (or transit joint screw thread), reach oil pipe end twisted to detain to screw, and the purpose of injection pressure water.The utility model be a kind of transmit twist pull power, bear press water by and the assembly mechanical device of sealing.
Technical advantage of the present utility model is:
1, hydraulic quick coupler and water filling main shaft is connected and fixed only by a Dogbolt, hydraulic quick coupler just can be freely to front slide on the water filling main shaft after removing Dogbolt, only need Dogbolt of dismounting just can during replacing, workload is very little, simultaneously because hydraulic quick coupler cooperates endoporus with cooperating of water filling main shaft larger gap to be arranged between the external diameter, therefore extract and push all very light, change hydraulic quick coupler and be very easy to quick.
During 2, to specification oil pipe pressure test not of the same race, just the tubing round thread of hydraulic quick coupler is different, and its inner structure size and water filling main shaft are all constant, and therefore the water filling main shaft need not be changed during various pressure testing specification.
3, transmitting torque relies on the spline external tooth engagement of hydraulic quick coupler end spline internal tooth and water filling main shaft to carry out, and adopts the processing of special molding cutter, and mesh degree is better, only needs shorter length of action just can transmit larger moment.Sealing relies on sealing ring press seal voluntarily under the effect of water pressure, and be the static seal form, so sealability is higher, uses reliably.
4, the syndeton of hydraulic quick coupler is simple, and size is little, and interchangeability is strong, and is easily manufactured easy, not only can use at the water filling end, also can be used in equally the emptying end of oil pipe of opposite side, installs and uses at emptying axle to reach effect same.
Description of drawings
Fig. 1 is structural representation of the present utility model.
1 anti-return nut, 2 hydraulic quick couplers, 3 sealing rings, 4 locating rings, 5 water filling main shafts
6 water injection holes, 7 splines, 8 tubing round thread 9 are twisted and are pulled the power access port.
The specific embodiment
Oil pipe pressure test water filling main shaft and hydraulic quick coupler assembly, the anterior overcoat of water filling main shaft has hydraulic quick coupler, and the front end of water filling main shaft is fixedly installed anti-return nut, and anti-return nut tightens up hydraulic quick coupler.Hydraulic quick coupler is socketed on the water filling main shaft external diameter, presses close to the locating ring that is socketed in water filling main spindle multiple spline tooth root section, and the external spline teeth engagement of the inner spline gear of hydraulic quick coupler and water filling main shaft forms spline joint.In the middle of the anti-return nut through hole is arranged, water filling main shaft sidewall has water injection hole, and water filling main shaft front central arranges centre bore and is communicated with water injection hole.The water filling rear-end of spindle is provided with to twist pulls the power access port.The hydraulic quick coupler external surface is provided with tubing round thread.
Be provided with sealing ring between water filling main shaft and the hydraulic quick coupler, sealing ring is encircled on the external diameter of water filling main shaft.
During work, stubborn button rotary power enters from the right-hand member of water filling main shaft, the spline of torque drive by the engagement of water filling main shaft and hydraulic quick coupler passed to hydraulic quick coupler, oil pipe end (or transit joint) is carried out that upper button screws shutoff and shackle is unclamped by the different tubing round thread of hydraulic quick coupler; Water injection hole by the water filling main shaft makes pressure testing water (or other medium), centre bore along the water filling main shaft is injected in the oil pipe inner chamber that connects by hydraulic quick coupler, hydraulic quick coupler is by carrying out the shutoff sealing between the special-purpose taper pipe thread sealing of external oil pipe standard and oil pipe or the transit joint, and the gap between hydraulic quick coupler inner chamber and the water filling main shaft external diameter seals by sealing ring.Dogbolt is pressed in hydraulic quick coupler by screw thread the front side of water filling main shaft, avoids twisting in button and the work of boosting, and hydraulic quick coupler withdraws from from the water filling main shaft under the effect of axial force.
When changing different hydraulic quick couplers, only need unique Dogbolt is unloaded, hydraulic quick coupler is extracted the dismounting work that just can finish hydraulic quick coupler, when new quick change tieing is installed, insert sealing ring, hydraulic quick coupler is enclosed within water filling main shaft outside pushes, the Dogbolt of screwing on is fastening just can.
Should be noted that at last: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (3)
1. oil pipe pressure test water filling main shaft and hydraulic quick coupler assembly, it is characterized in that, the anterior overcoat of water filling main shaft has hydraulic quick coupler, the front end of water filling main shaft is fixedly installed anti-return nut, and anti-return nut tightens up hydraulic quick coupler, and through hole is arranged in the middle of the anti-return nut, water filling main shaft sidewall has water injection hole, water filling main shaft front central arranges centre bore and is communicated with water injection hole, and the water filling rear-end of spindle is provided with to twist pulls the power access port, and the hydraulic quick coupler external surface is provided with tubing round thread.
2. according to claim 1 described oil pipe pressure test water filling main shaft and hydraulic quick coupler assembly is characterized in that, be provided with sealing ring between water filling main shaft and the hydraulic quick coupler, sealing ring is encircled on the external diameter of water filling main shaft.
3. according to claim 1 described oil pipe pressure test water filling main shaft and hydraulic quick coupler assembly, it is characterized in that, hydraulic quick coupler is socketed on the water filling main shaft external diameter, press close to the locating ring that is socketed in water filling main spindle multiple spline tooth root section, the external spline teeth engagement of the inner spline gear of hydraulic quick coupler and water filling main shaft forms spline joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220335582 CN202689960U (en) | 2012-07-12 | 2012-07-12 | Tubing pressure test water injection spindle and quick-change connector component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220335582 CN202689960U (en) | 2012-07-12 | 2012-07-12 | Tubing pressure test water injection spindle and quick-change connector component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202689960U true CN202689960U (en) | 2013-01-23 |
Family
ID=47545590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220335582 Expired - Fee Related CN202689960U (en) | 2012-07-12 | 2012-07-12 | Tubing pressure test water injection spindle and quick-change connector component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202689960U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651472A (en) * | 2016-04-11 | 2016-06-08 | 重庆燃气集团股份有限公司 | Device integrating fuel gas plugging and vertical pipe pressure testing and plugging pressure testing method |
| CN110273913A (en) * | 2019-07-01 | 2019-09-24 | 一汽轿车股份有限公司 | A kind of electric cylinder quick change combined driving main shaft |
-
2012
- 2012-07-12 CN CN 201220335582 patent/CN202689960U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651472A (en) * | 2016-04-11 | 2016-06-08 | 重庆燃气集团股份有限公司 | Device integrating fuel gas plugging and vertical pipe pressure testing and plugging pressure testing method |
| CN105651472B (en) * | 2016-04-11 | 2018-08-03 | 重庆燃气集团股份有限公司 | The device and closure pressure-measuring method of combustion gas closure and standpipe pressure testing one |
| CN110273913A (en) * | 2019-07-01 | 2019-09-24 | 一汽轿车股份有限公司 | A kind of electric cylinder quick change combined driving main shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20180712 |