CN102661469A - High-pressure tapping machine with pressure balancing mechanism - Google Patents
High-pressure tapping machine with pressure balancing mechanism Download PDFInfo
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- CN102661469A CN102661469A CN2012101699122A CN201210169912A CN102661469A CN 102661469 A CN102661469 A CN 102661469A CN 2012101699122 A CN2012101699122 A CN 2012101699122A CN 201210169912 A CN201210169912 A CN 201210169912A CN 102661469 A CN102661469 A CN 102661469A
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- perforator
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- drilling rod
- pressure balance
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Abstract
The invention relates to a high-pressure tapping machine with a pressure balancing mechanism. The high-pressure tapping machine comprises a tapping machine pull rod, a feed screw, a feed screw locknut, a tapping machine drilling rod and a rotation driving shaft. The tapping machine pull rod, the feed screw, the feed screw locknut, the tapping machine drilling rod and the rotation driving shaft are connected with one another sequentially and outwards from the center. The high-pressure tapping machine is characterized in that a pressure balancing sealing sleeve is disposed at the rear end of the feed screw locknut, a balancing hydraulic cylinder is disposed in the middle at the lower end of the tapping machine pull rod, a hydraulic piston which is in sliding fit with the balancing hydraulic cylinder is disposed in the balancing hydraulic cylinder, a plurality of oil holes are reserved at the top end of the balancing hydraulic cylinder. The oil holes are communicated with a central hole of the feed screw. A pressure balancing oil cavity is formed starting from the bottom of the pressure balancing sealing sleeve and stopping on the top face of the hydraulic piston. Hydraulic oil is disposed in the pressure balancing oil cavity in advance. The high-pressure tapping machine with a pressure balancing mechanism has the advantages that pressure of an upper section and a lower section of the tapping machine drilling rod is balanced, balancing of upper and lower pressure of the feed screw locknut is guaranteed, normal operation of the pressure balancing mechanism is not influenced by medium in a pipeline, and controllability and safety are enhanced greatly.
Description
Technical field
The invention belongs to the equipment that high pressure pipe line is safeguarded and rushed to repair, relate in particular to a kind of high pressure perforator with pressure balance mechanism.
Background technique
Carry the manifold pressure of the various energy increasingly high.Pipeline receives foundation settlement through the use of several years, and the long term of destructive factors such as corrosion and external construction, pipeline at any time all might be impaired in running, need carry out pipeline maintenance and repairing.At present for the maintenance of important energy source conveyance conduit and the impaired leakage of production technology pipeline, repairing and in the maintenance of using as a servant pipeline, normally used method be do not stop failing, the press and open holes shutoff.Therefore for high pressure pipe line, the high pressure perforator becomes indispensable equipment.The high pressure perforator pressure balancing system that uses at present directly utilizes the pipeline medium to carry out balance, and the not treated direct entering pressure balancing system of medium often causes balance sysmte to stop up, cause perforator to work.
Patent application (200910070821) discloses a kind of high-pressure large-caliber perforator that external independent adjustable is equipped with the equilibrium system that has, and it comprises external hydraulic power unit; Feed gear box; Perforator shell, flange, perforator pull bar; By the rotating driveshaft of worm gear through the key drive; Drive the perforator drilling rod that key drives through the perforator drilling rod again in the rotating driveshaft; Connect feed screw through the feed screw locknut again in the perforator drilling rod, and the inner hole sleeve of feed screw is contained on the perforator pull bar; Rear end at rotating driveshaft; Be provided with the rotating driveshaft locknut between the external diameter of rotating driveshaft and the perforator shell; The internal diameter of rotating driveshaft and feed screw locknut screw; The feed screw locknut then is sleeved on the external diameter of feed screw; It is characterized in that: in the sectional position of the rotating driveshaft at the ear end face of said perforator drilling rod place; Rotating driveshaft is continued to use to being provided with one or more through holes entad; And on the perforator shell beyond the bearing in the lead to the hole site of the said rotating driveshaft outside, also have a balance that is connected with external oil hydraulic pump and compress into oilhole fully, formation is asked ask pressure balance oil pocket that crack constitute crack, perforator drilling rod and perforator feed screw between between entad ear end face and the rotating driveshaft and the perforator drilling rod of through hole, perforator drilling rod by perforator shell, rotating driveshaft in the shoulder bottom surface of entad through hole rear portion setting, feed screw shoulder bottom surface, rotating driveshaft.Can regulate and control balance sysmte though external independent adjustable is equipped with the balance sysmte of pressing, make the perforator apparatus structure become complicated, the necessary external hydraulic station of perforator construction is inappropriate for the repairing work of many environment.
Summary of the invention
The present invention is in order to overcome deficiency of the prior art; A kind of high pressure perforator with pressure balance mechanism is provided; Pressure balance mechanism exists alone in body, is full of hydraulic oil in the oil pocket of balanced controls and has a style of one's own, and perforator is provided with filtrating equipment at medium intake place; Medium gets in the pipeline has influenced not the proper functioning of pressure balance mechanism, and controllability and Security improve greatly.
The present invention is for realizing above-mentioned purpose; Realize through following technological scheme; A kind of high pressure perforator with pressure balance mechanism comprises feed gear box, Jian speed Chi Lun Xiang ﹑ flange outer sleeve, by outside perforator pull bar, feed screw, perforator drilling rod and the rotating driveshaft that connects successively in center; The gear of said reduction gear box and rotating driveshaft keyed jointing, rotating driveshaft is through the key engagement of featherway and perforator drilling rod upper end, affixed feed screw locknut on the said rotating driveshaft; Feed screw in said feed screw locknut and the perforator drilling rod is spirally connected, and the intermediate hole of said feed screw is sleeved on the perforator pull bar, and the rear end of said feed screw locknut is provided with the pressure balance seal cover; Be provided with the balanced hydraulic cylinder body in the middle of the said perforator pull bar lower end; Be provided with the hydraulic piston that is slidingly matched with it in the said balanced hydraulic cylinder body, said balanced hydraulic cylinder body top is provided with several oilholes, and said oilhole is communicated with the intermediate hole of feed screw; Said bottom surface from the pressure balance seal cover begins to end to the hydraulic piston end face; Comprise stuffing box gland bottom surface, leading screw locknut end face, perforator drilling rod intermediate hole bottom surface, the gap between perforator drilling rod and the feed screw; Perforator rotating driveshaft rotating disk end face; Gap between perforator rotating driveshaft and the drilling rod, the gap between perforator feed screw and the perforator pull bar, gap between the balanced hydraulic cylinder body of perforator pull bar and the hydraulic piston thereof; Constitute the pressure balance oil pocket jointly, preset hydraulic oil in the said pressure balance oil pocket.
Be provided with the A combination seal between said pressure balance seal cover and the rotating driveshaft; Be provided with the B combination seal between said perforator feed screw and the perforator pull bar; Be provided with the C combination seal between said perforator pull bar and the perforator drilling rod; Be provided with the D combination seal between said perforator pull bar lower end hydraulic jack and the hydraulic piston; Between said rotating driveshaft chassis and the flange outer sleeve, be provided with the E combination seal between rotating driveshaft chassis and the rotating driveshaft; Be provided with the F combination seal between said perforator drilling rod axle sleeve and the flange outer sleeve and between drilling rod axle sleeve and the drilling rod.
Said A combination seal comprises an O-ring seal and two O RunddichtringOs.
Said B combination seal, C combination seal and D combination seal are respectively ring-like seal ring.
Said O-ring seal shape of cross section is O type or Y type or V-type or flute profile.
Said E combination seal comprises three O-ring seals and two O RunddichtringOs.
Said F combination seal comprises two O RunddichtringOs.
Beneficial effect: provide pressure balance mechanism for oneself and can make the perforator drilling rod realize the upper and lower cross section of perforator drilling rod pressure balance, thereby pressure is not born in the upper and lower pressure balance of assurance feed screw nut through this mechanism.It is simple in structure, compares with same category of device, and mechanism has a style of one's own because of pressure balance, and independent the existence, medium does not influence this pressure balance mechanism proper functioning in the pipeline, and controllability and Security strengthen greatly.
Description of drawings
Fig. 1 is a perforator master half sectional view;
Fig. 2 is a perforator master half sectional view back segment part enlarged view;
Fig. 3 is a perforator master half sectional view leading portion part enlarged view;
Fig. 4 is the local enlarged diagram of A combination seal;
Fig. 5 is the local enlarged diagram of B combination seal;
Fig. 6 is the local enlarged diagram of C combination seal;
Fig. 7 is the local enlarged diagram of D combination seal;
Fig. 8 is the local enlarged diagram of E combination seal;
Fig. 9 is the local enlarged diagram of F combination seal.
Among the figure: the 1-feed gear box; 2-pressure balance seal cover; 3-feed screw locknut; The 4-rotating driveshaft; The 5-key; 6-perforator drilling rod; The 7-feed screw; 8-perforator pull bar; The 9-reduction gear box; The 10-gear; The 11-hydraulic piston; 12-presses female; 13-filter screen I; 14-filter core I; 15-filter screen II; 16-filter core II; 17-rotating driveshaft chassis; 18-rotating driveshaft rotating disk; 19-drilling rod axle sleeve; The 20-flange outer sleeve; 21-hydraulic piston end face; The 22-jump ring, the 23-oilhole.
Embodiment
Below in conjunction with preferred embodiment; To details are as follows according to embodiment provided by the invention: see accompanying drawing for details; A kind of high pressure perforator with pressure balance mechanism; Comprise feed gear box 1, reduction gear box 9 ﹑ flange outer sleeve 20, by outside perforator pull bar 8, feed screw 7, perforator drilling rod 6 and the rotating driveshaft 4 that connects successively in center; The gear 10 and rotating driveshaft 4 keyed jointings of said reduction gear box, rotating driveshaft is through key 5 engagements of featherway and perforator drilling rod upper end, the affixed feed screw locknut 3 in said rotating driveshaft upper end; Feed screw in said feed screw locknut and the perforator drilling rod is spirally connected; The intermediate hole of said feed screw is sleeved on the perforator pull bar, and the rear end of said feed screw locknut is provided with pressure balance seal cover 2, is provided with the balanced hydraulic cylinder body in the middle of the said perforator pull bar lower end; Be provided with the hydraulic piston 11 that is slidingly matched with it in the said balanced hydraulic cylinder body; Said balanced hydraulic cylinder body top is provided with several oilholes 23, and said oilhole is communicated with the intermediate hole of feed screw, and said bottom surface from the pressure balance seal cover begins to end to hydraulic piston end face 21; Comprise stuffing box gland bottom surface, leading screw locknut end face; Perforator drilling rod intermediate hole bottom surface, the gap between perforator drilling rod and the feed screw, rotating driveshaft rotating disk 18 end faces; Gap between rotating driveshaft and the drilling rod; Gap between perforator feed screw and the perforator pull bar, the gap constitutes the pressure balance oil pocket jointly between the balanced hydraulic cylinder body of perforator pull bar and the hydraulic piston thereof, presets hydraulic oil in the said pressure balance oil pocket.
Be provided with the A combination seal between said pressure balance seal cover and the rotating driveshaft; Be provided with the B combination seal between said feed screw and the perforator pull bar; Be provided with the C combination seal between said perforator pull bar and the perforator drilling rod; Be provided with the D combination seal between said perforator pull bar lower end hydraulic jack and the hydraulic piston; Between said rotating driveshaft chassis 17 and the flange outer sleeve 20, be provided with the E combination seal between rotating driveshaft chassis and the rotating driveshaft; Be provided with the F combination seal between said perforator drilling rod axle sleeve 19 and the flange outer sleeve and between drilling rod axle sleeve and the drilling rod.Said A combination seal comprises an O-ring seal and two O RunddichtringOs.Said B combination seal, C combination seal and D combination seal are respectively ring-like seal ring.Said O-ring seal shape of cross section is O type or Y type or V-type or flute profile.Said E combination seal comprises three O-ring seals and two O RunddichtringOs.Said F combination seal comprises two O RunddichtringOs.Pressure balance seal cover and hydraulic piston are to make with metallic material.
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 of driven rotary live axle upper end portion installation simultaneously, actuation gear and the engagement of engage a gear feed gear wheel; Realize that the transmission ratio with the perforator feed screw drives the automatic feed of perforator drilling rod, accomplishes the perforate operation.The front end of perforator drilling rod bears boring pressure P; And the 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 the feed screw; Rotating driveshaft rotating disk end face, the gap between rotating driveshaft and the perforator drilling rod, and the gap between perforator feed screw and the perforator pull bar constitutes the pressure balance oil pocket jointly.When the perforate operation proceeds to pipeline inner high voltage medium and contacts with perforator; Perforator drilling rod front end is through pressing female 12 affixed filtrating equipments; High-pressure medium is fixed by jump ring 22 through filter screen I 13, filter core 14 and the filter screen II 15 of attachment hole filtrating equipment, hydraulic piston to the oil cylinder end of filter core 16 filtration back compression perforator pressure balance oil cylinders; The propagation of pressure of perforator pressure balance oil pocket through hydraulic oil equate with the pressure of high-pressure medium very soon, thereby reach the purpose of balance.
The above only is preferred embodiment of the present invention, is not structure of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technological scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (7)
1. the high pressure perforator with pressure balance mechanism comprises feed gear box, subtracts fast tooth wheel case ﹑ flange outer sleeve, by outside perforator pull bar, feed screw, perforator drilling rod and the rotating driveshaft that connects successively in center; The gear of said reduction gear box and rotating driveshaft keyed jointing, rotating driveshaft is through the key engagement of featherway and perforator drilling rod upper end, affixed feed screw locknut on the said rotating driveshaft; Feed screw in said feed screw locknut and the perforator drilling rod is spirally connected, and the intermediate hole of said feed screw is sleeved on the perforator pull bar, it is characterized in that: the rear end of said feed screw locknut is provided with the pressure balance seal cover; Be provided with the balanced hydraulic cylinder body in the middle of the said perforator pull bar lower end; Be provided with the hydraulic piston that is slidingly matched with it in the said balanced hydraulic cylinder body, said balanced hydraulic cylinder body top is provided with several oilholes, and said oilhole is communicated with the intermediate hole of feed screw; Said bottom surface from the pressure balance seal cover begins to end to the hydraulic piston end face; Comprise stuffing box gland bottom surface, leading screw locknut end face, perforator drilling rod intermediate hole bottom surface, the gap between perforator drilling rod and the feed screw; Rotating driveshaft rotating disk end face; Gap between rotating driveshaft and the drilling rod, the gap between perforator feed screw and the perforator pull bar, gap between the balanced hydraulic cylinder body of perforator pull bar and the hydraulic piston thereof; Constitute the pressure balance oil pocket jointly, preset hydraulic oil in the said pressure balance oil pocket.
2. the high pressure perforator with pressure balance mechanism according to claim 1 is characterized in that: be provided with the A combination seal between said pressure balance seal cover and the rotating driveshaft; Be provided with the B combination seal between said feed screw and the perforator pull bar; Be provided with the C combination seal between said perforator pull bar and the perforator drilling rod; Be provided with the D combination seal between said perforator pull bar lower end hydraulic jack and the hydraulic piston; Between said rotating driveshaft chassis and the flange outer sleeve, be provided with the E combination seal between rotating driveshaft chassis and the rotating driveshaft; Be provided with the F combination seal between said perforator drilling rod axle sleeve and the flange outer sleeve and between drilling rod axle sleeve and the drilling rod.
3. the high pressure perforator with pressure balance mechanism according to claim 2 is characterized in that: said A combination seal comprises an O-ring seal and two O RunddichtringOs.
4. the high pressure perforator with pressure balance mechanism according to claim 2 is characterized in that: said B combination seal, C combination seal and D combination seal are respectively ring-like seal ring.
5. the high pressure perforator with pressure balance mechanism according to claim 4 is characterized in that: said O-ring seal shape of cross section is O type or Y type or V-type or flute profile.
6. the high pressure perforator with pressure balance mechanism according to claim 2 is characterized in that: said E combination seal comprises three O-ring seals and two O RunddichtringOs.
7. the high pressure perforator with pressure balance mechanism according to claim 2 is characterized in that: said F combination seal comprises two O RunddichtringOs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101699122A CN102661469A (en) | 2012-05-29 | 2012-05-29 | High-pressure tapping machine with pressure balancing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101699122A CN102661469A (en) | 2012-05-29 | 2012-05-29 | High-pressure tapping machine with pressure balancing mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN102661469A true CN102661469A (en) | 2012-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101699122A Pending CN102661469A (en) | 2012-05-29 | 2012-05-29 | High-pressure tapping machine with pressure balancing mechanism |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019325A (en) * | 2014-06-19 | 2014-09-03 | 余本源 | High-pressure tapping machine with built-in hydraulic oil cavity |
| CN105465543A (en) * | 2016-01-14 | 2016-04-06 | 新余飞虎管道技术设备有限责任公司 | Ultrahigh-pressure drilling machine |
| CN105673993A (en) * | 2016-01-29 | 2016-06-15 | 北京市燃气集团有限责任公司 | Hot tapping blockage pressure balancing device of fluid pipeline and method of hot tapping blockage pressure balancing device |
| CN107152506A (en) * | 2017-06-06 | 2017-09-12 | 北京航空航天大学 | Pressure self-balancing formula electromechanical servo acting device under a kind of hyperbaric environment |
-
2012
- 2012-05-29 CN CN2012101699122A patent/CN102661469A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019325A (en) * | 2014-06-19 | 2014-09-03 | 余本源 | High-pressure tapping machine with built-in hydraulic oil cavity |
| CN105465543A (en) * | 2016-01-14 | 2016-04-06 | 新余飞虎管道技术设备有限责任公司 | Ultrahigh-pressure drilling machine |
| CN105673993A (en) * | 2016-01-29 | 2016-06-15 | 北京市燃气集团有限责任公司 | Hot tapping blockage pressure balancing device of fluid pipeline and method of hot tapping blockage pressure balancing device |
| CN107152506A (en) * | 2017-06-06 | 2017-09-12 | 北京航空航天大学 | Pressure self-balancing formula electromechanical servo acting device under a kind of hyperbaric environment |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120912 |