CN203571332U - High-pressure tapping machine with external pressure balance cylinder - Google Patents
High-pressure tapping machine with external pressure balance cylinder Download PDFInfo
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- CN203571332U CN203571332U CN201320666710.9U CN201320666710U CN203571332U CN 203571332 U CN203571332 U CN 203571332U CN 201320666710 U CN201320666710 U CN 201320666710U CN 203571332 U CN203571332 U CN 203571332U
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- perforator
- pressure balance
- pressure
- tapping machine
- cylinder
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Abstract
The utility model relates to a high-pressure tapping machine with an external pressure balance cylinder. The high-pressure tapping machine comprises a seal sleeve bottom face and a lead screw nut top face from the bottom face of a pressure balance seal sleeve to a pull rod boss top face, and a tapping machine drilling rod middle hole bottom face, a clearance between a tapping machine drilling rod and a feeding lead screw, a rotary driving shaft rotary table top face, a clearance between a rotary driving shaft and the drilling rod, a clearance between the tapping machine feeding lead screw and a tapping machine pull rod and a clearance between the tapping machine pull rod boss top face and a lead screw inner hole form a pressure balance oil cavity. The high-pressure tapping machine is characterized in that the pressure balance oil cavity is connected to the external pressure balance oil cylinder through a high-pressure rubber hose. The high-pressure tapping machine has the advantages that the external pressure balance oil cylinder can transmit the pressure of media in a pipeline to a tapping machine pressure balance mechanism through oil cylinder hydraulic oil, and therefore the upper and lower pressure of a feeding lead screw nut is balanced. The external pressure balance cylinder is self-contained outside the tapping machine, the media in the pipeline are separated by the external pressure balance oil cylinder, and the work safety of the high-pressure tapping machine is guaranteed.
Description
Technical field
The utility model belongs to the equipment that high pressure pipe line is safeguarded and rushed to repair, and relates in particular to a kind of high pressure perforator with pressure balance cylinder.
Background technique
Carry the manifold pressure of the various energy more and more higher.Pipeline, through the use of several years, is subject to foundation settlement, the long term of the destructive factors such as corrosion and external construction, and pipeline is all likely impaired at any time in running, need to carry out pipeline maintenance and repairing.The maintenance of current maintenance, repairing and working pipeline for important energy source conveyance conduit and the impaired leakage of production technology pipeline, normally used method is not stopping transportation, press and open holes shutoff.Therefore for high pressure pipe line, high pressure perforator becomes indispensable equipment.The high pressure perforator using at present directly utilizes pipeline medium to carry out balance, and medium need directly enter perforator pressure balancing system, often causes balance sysmte to stop up, cause perforator to work.
Claimant's (number of patent application: 201220245496.5) disclose a kind of high pressure perforator with pressure balance mechanism, comprised the perforator pull bar, feed screw, locknut, perforator drilling rod and the rotating driveshaft that are outwards connected successively by center; It is characterized in that: the rear end of described feed screw locknut is provided with pressure balance seal cover, in the middle of described perforator pull bar lower end, be provided with balanced hydraulic cylinder body, in described balanced hydraulic cylinder body, be provided with the hydraulic piston being slidably matched with it, described balanced hydraulic cylinder body top is provided with several and is provided with the oilhole of filter screen, described oilhole is communicated with the intermediate hole of feed screw, the described bottom surface from pressure balance stuffing box gland starts only to form pressure balance oil pocket, preset hydraulic oil in described pressure balance oil pocket to hydraulic piston end face.Can make perforator by the upper and lower cross section of the drilling rod pressure balance of pressure balance oil pocket winding machine perforator, thereby guarantee the upper and lower pressure balance of feed screw nut, the interior medium of pipeline does not affect this pressure balance mechanism through filtration normally works, and controllability and Security strengthen greatly.Although claimant finds in pipeline medium and enter pressure balance oil pocket again after filtering in production practices, in the very dirty situation of in-line medium, still can cause local equilibrium's oil pocket obstructed, affect the normal work of perforator.
Model utility content
The utility model is in order to overcome deficiency of the prior art, a kind of high pressure perforator with external pressure balance cylinder is provided, on the pressure balance oil pocket basis arranging alone in perforator body, external external pressure balance oil cylinder, medium passes to the pressure balance oil pocket in perforator by pressure balance oil cylinder by pressure in pipeline, and in pipeline, medium no longer directly enters perforator inside, thereby has guaranteed that perforator normally works under high pressure conditions, controllability, Security improves greatly.
The utility model for achieving the above object, be achieved through the following technical solutions, a kind of high pressure perforator with external pressure balance cylinder, comprise feed gear box, Jian speed Chi Lun Xiang ﹑ flange outer sleeve, the perforator pull bar, feed screw, perforator drilling rod and the rotating driveshaft that by center, are outwards connected successively, the gear of described reduction gear box and rotating driveshaft keyed jointing, rotating driveshaft engages with the key of perforator drilling rod upper end by featherway, the affixed feed screw locknut in described rotating driveshaft upper end, feed screw in described feed screw locknut and perforator drilling rod is spirally connected, the intermediate hole of described feed screw is sleeved on perforator pull bar, the rear end of described feed screw locknut is provided with pressure balance seal cover, the described bottom surface from pressure balance seal cover starts to stop to pull bar boss end face, comprise stuffing box gland bottom surface, leading screw locknut end face, perforator drilling rod intermediate hole bottom surface, gap between perforator drilling rod and feed screw, rotating driveshaft rotating disk end face, gap between rotating driveshaft and drilling rod, gap between perforator feed screw and perforator pull bar, gap between perforator pull bar boss end face and leading screw endoporus, common combination forms pressure balance oil pocket, preset hydraulic oil in described pressure balance oil pocket, it is characterized in that: described pressure balance oil pocket is connected to external pressure balance oil cylinder by high-pressure rubber pipe.
Described external pressure balance oil cylinder comprises cylinder tube and hydraulic piston, in the cylinder tube of described pressure balance oil cylinder, be full of hydraulic oil, described cylinder tube is provided with the first filler opening, and described the first filler opening is connected with described perforator pressure balance oil pocket by high-pressure rubber pipe.
Described cylinder tube is provided with the second filler opening, and described the second filler opening is connected with high pressure line with aperture combination device by high-pressure rubber pipe and rapid pipe joint.Between described hydraulic piston and cylinder tube, combination seal is set.
Described combination seal comprises two O RunddichtringOs.
Beneficial effect: compared with prior art, external pressure balance oil cylinder is set to be made on the drilling rod of perforator, lower section pressure balance, thereby guarantee on feed screw nut, during pressure balance (not bearing any strength), because external pressure balance cylinder has a style of one's own outward at perforator, perforator pressure balance mechanism is independently present in body, medium does not directly enter perforator but by external pressure balance cylinder, pressure is passed to perforator internal pressure balanced controls and realize perforator and normally work under high pressure conditions in pipeline, thereby the controllability of making, Security strengthens greatly.
Accompanying drawing explanation
Fig. 1 is the structural representation of perforator and external pressure balance oil cylinder;
Fig. 2 is perforate owner half sectional view back segment part enlarged view;
Fig. 3 is perforate owner half sectional view leading portion part enlarged view.
In figure: 1, feed gear box; 2, pressure balance seal cover; 3, feed screw locknut; 4, rotating driveshaft; 5, key; 6, perforator drilling rod; 7, feed screw; 8, perforator pull bar; 9, reduction gear box; 10, gear; 11, rotating driveshaft chassis; 12, rotating driveshaft rotating disk; 13, drilling rod axle sleeve; 14, flange outer sleeve; 15, hydraulic piston; 16, hydraulic jack cylinder barrel, 17, the first filler opening, 18, the second filler opening; 19, combination seal; 20, external pressure balance oil cylinder; 21, the filler opening of perforator pressure balance oil pocket, 22, high-pressure rubber pipe.
Embodiment
Below in conjunction with preferred embodiment, to the embodiment providing according to the utility model, details are as follows: refer to accompanying drawing, a kind of high pressure perforator with external pressure balance cylinder, comprise feed gear box 1, reduction gear box 9 ﹑ flange outer sleeve 14, the perforator pull bar 8, feed screw 7, perforator drilling rod 6 and the rotating driveshaft 4 that by center, are outwards connected successively, gear 10 and rotating driveshaft 4 keyed jointings of described reduction gear box, rotating driveshaft engages with the key 5 of perforator drilling rod upper end by featherway, the affixed feed screw locknut 3 in described rotating driveshaft upper end, feed screw in described feed screw locknut and perforator drilling rod is spirally connected, the intermediate hole of described feed screw is sleeved on perforator pull bar, the rear end of described feed screw locknut is provided with pressure balance seal cover 2, the described bottom surface from pressure balance seal cover starts to stop to pull bar boss end face, comprise stuffing box gland bottom surface, leading screw locknut end face, perforator drilling rod intermediate hole bottom surface, gap between perforator drilling rod and feed screw, rotating driveshaft rotating disk end face, gap between rotating driveshaft and drilling rod, gap between perforator feed screw and perforator pull bar, between perforator pull bar raised head face and leading screw endoporus, gap common combination forms pressure balance oil pocket, preset hydraulic oil in described pressure balance oil pocket.Described pressure balance oil pocket is connected to external pressure balance oil cylinder 20 by high-pressure rubber pipe.Described pressure balance oil cylinder is comprised of hydraulic piston 15 and oil cylinder cylinder tube 16, and described cylinder tube is provided with the first filler opening 17, and described the first filler opening is connected with the filler opening 21 of described perforator pressure balance oil pocket by high-pressure rubber pipe 22.Described cylinder tube is provided with the second filler opening 18, and described the second filler opening is connected with high pressure line with aperture combination device by high-pressure rubber pipe and rapid pipe joint.Combination seal 19 is set between described hydraulic piston and cylinder tube.Described combination seal comprises two O RunddichtringOs, is placed in hydraulic piston two ends.
Working principle:
When the gear 10 of speed reducer rotates, the rotation of driven rotary live axle, rotating driveshaft drives the rotation of perforator drilling rod, the actuation gear rotation that install driven rotary live axle upper end portion simultaneously, actuation gear engages with engage a gear feed gear wheel, realize the automatic feed that drives perforator drilling rod with the transmission ratio of perforator feed screw, complete perforate operation.The front end of perforator drilling rod bears boring pressure P, and pressure balance seal cover is set in the rear end of perforator drilling rod, by the gap between stuffing box gland bottom surface, leading screw locknut end face, perforator drilling rod intermediate hole bottom surface, perforator pull bar intermediate hole, perforator drilling rod and feed screw, rotating driveshaft rotating disk 12 end faces, gap between rotating driveshaft and perforator drilling rod, and the gap between perforator feed screw and perforator pull bar forms pressure balance oil pocket jointly.When perforate operation proceeds to pipeline inner high voltage medium and enters aperture combination device, high-pressure medium passes to perforator pressure balance mechanism by the external pressure balance oil cylinder being connected between aperture combination device and perforator self pressure balance oil pocket by the pressure of high-pressure medium, thereby reaches the pressure balanced object of perforate under perforator high pressure conditions.
The above, be only preferred embodiment of the present utility model, not structure of the present utility model done to any pro forma restriction.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of the technical solution of the utility model.
Claims (4)
1. there is a high pressure perforator for external pressure balance cylinder, comprise feed gear box, subtract fast tooth wheel case ﹑ flange outer sleeve, the perforator pull bar, feed screw, perforator drilling rod and the rotating driveshaft that by center, are outwards connected successively, the gear of described reduction gear box and rotating driveshaft keyed jointing, rotating driveshaft engages with the key of perforator drilling rod upper end by featherway, the affixed feed screw locknut in described rotating driveshaft upper end, feed screw in described feed screw locknut and perforator drilling rod is spirally connected, the intermediate hole of described feed screw is sleeved on perforator pull bar, the rear end of described feed screw locknut is provided with pressure balance seal cover, the described bottom surface from pressure balance seal cover starts to stop to pull bar boss end face, comprise stuffing box gland bottom surface, leading screw locknut end face, perforator drilling rod intermediate hole bottom surface, gap between perforator drilling rod and feed screw, rotating driveshaft rotating disk end face, gap between rotating driveshaft and drilling rod, gap between perforator feed screw and perforator pull bar, gap between the boss end face of perforator pull bar and leading screw endoporus, common combination forms pressure balance oil pocket, preset hydraulic oil in described pressure balance oil pocket, it is characterized in that: described pressure balance oil pocket is connected with external pressure balance oil cylinder by high-pressure rubber pipe.
2. the high pressure perforator with external pressure balance cylinder according to claim 1, it is characterized in that: described external pressure balance oil cylinder comprises cylinder tube and hydraulic piston, in the cylinder tube of described pressure balance oil cylinder, be full of hydraulic oil, described cylinder tube is provided with the first filler opening, and described the first filler opening is connected with described perforator pressure balance oil pocket by high-pressure rubber pipe.
3. the high pressure perforator with external pressure balance cylinder according to claim 1 and 2, it is characterized in that: described cylinder tube is provided with the second filler opening, described the second filler opening is connected with high pressure line with aperture combination device by high-pressure rubber pipe and rapid pipe joint, between described hydraulic piston and cylinder tube, combination seal is set.
4. the high pressure perforator with external pressure balance cylinder according to claim 3, is characterized in that: described combination seal comprises two O RunddichtringOs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320666710.9U CN203571332U (en) | 2013-10-28 | 2013-10-28 | High-pressure tapping machine with external pressure balance cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320666710.9U CN203571332U (en) | 2013-10-28 | 2013-10-28 | High-pressure tapping machine with external pressure balance cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203571332U true CN203571332U (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320666710.9U Withdrawn - After Issue CN203571332U (en) | 2013-10-28 | 2013-10-28 | High-pressure tapping machine with external pressure balance cylinder |
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| CN (1) | CN203571332U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511792A (en) * | 2013-10-28 | 2014-01-15 | 北京金石湾管道技术有限公司 | High-pressure tapping machine with external pressure balance cylinder |
-
2013
- 2013-10-28 CN CN201320666710.9U patent/CN203571332U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511792A (en) * | 2013-10-28 | 2014-01-15 | 北京金石湾管道技术有限公司 | High-pressure tapping machine with external pressure balance cylinder |
| CN103511792B (en) * | 2013-10-28 | 2015-12-16 | 北京金石湾管道技术有限公司 | There is the high pressure perforator of external pressure balance cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140430 Effective date of abandoning: 20151216 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |