CN1036818A - Be used for the automatic sealing device of aperture with the frictional force sealing pressure fluid - Google Patents
Be used for the automatic sealing device of aperture with the frictional force sealing pressure fluid Download PDFInfo
- Publication number
- CN1036818A CN1036818A CN 89105214 CN89105214A CN1036818A CN 1036818 A CN1036818 A CN 1036818A CN 89105214 CN89105214 CN 89105214 CN 89105214 A CN89105214 A CN 89105214A CN 1036818 A CN1036818 A CN 1036818A
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- sealing
- seal
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- pressure
- fluid
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- Earth Drilling (AREA)
Abstract
The present invention relates to circle and regular polygon aperture, so that the mode of unpacking utilizes frictional force to seal up the seal arrangement of pressure fluid, particularly with the petrosal foramen seal arrangement of fluid high static pressure splitting rock equipment and the sealing of geology well head.Existing " screw thread pressing machine structure " utilizes and manually screws the pretightening force realization aperture sealing that screw thread produces, labor intensity is big, inefficiency, sealing reliability is poor, the present invention is a kind of auto-action device, utilize the sealing of hydrodynamic pressure auto lock, and can regulate seal friction power automatically according to the closed hole fluid pressure, this device can seal up by the pressure fluid in the seal arrangement input hole, can seal up the pressure fluid in the hole again, this device can seal up the pressure fluid of 50 MPas safely, and is easy to operate, and loading and unloading easily.
Description
The present invention relates to garden shape and regular polygon aperture, so that the mode of unpacking utilizes frictional force to seal up the seal arrangement of hole internal pressure fluid, particularly with the petrosal foramen seal arrangement of fluid high static pressure splitting rock equipment and the sealing of geology well head.
(number of patent application is: 86209430) development comes by Northeast Polytechnic College development " screw thread pressing machine structure " in the present invention.
In the known aperture high pressure seal structure of being convenient to break seal, adopt thread seal more.This structure is only applicable to the sealing in the shape hole, garden on the material of machining screw easily, to the hole on some natural materials, such as the shape common rock drilling hole of rule not too on the rock, seal up hole internal pressure fluid, just must adopt " friction sealed method ".The petrosal foramen diameter that ordinary rock drill is finished is 40 to 43 millimeters, utilization directly acts on the fluid high static pressure splitting large rock mass in the sealing petrosal foramen in a row, working pressure needs 10 to 50 MPas, and existing seal arrangement has only " the screw thread pressing machine structure " of Northeast Polytechnic College development a kind of.This mechanism utilizes and manually screws the pretightening force realization sealing that screw thread produces.This " screw thread pressing machine structure " though can seal up the pressure fluid of 40 MPas, sealing is to realize that by manually screwing screw thread labor intensity is big fully, inefficiency, and sealing reliability is relatively poor.
Task of the present invention is: design a kind of auto-action device, can seal by auto lock when time in the hole that pressure fluid seals by the seal arrangement input, and can regulate seal friction power automatically according to the hole fluid pressure.This installs through evidence: sealing is reliable, and is easy to operate, and loading and unloading can seal up the pressure fluid of 50 MPas easily safely.
Technological scheme of the present invention is: be used for the aperture so that the mode of unpacking utilizes frictional force to seal up hole internal pressure fluid, particularly, the screw threads for fastening sealing mechanism is changed into the piston (5) that can utilize the hydrodynamic pressure auto-action with the petrosal foramen seal arrangement of fluid high static pressure splitting rock equipment.Cylinder body (4) double-action mechanism utilizes fluid transmission and hydrodynamic pressure to be communicated with principle and realizes the auto lock sealing, and can regulate seal friction power automatically according to closed hole (19) fluid pressure.Side of cylinder block has import (7), through hole (11) is arranged on the piston rod (12), this through-hole diameter is less than the inlet diameter on the cylinder body, and certain distance is arranged apart from piston, there is the shaft shoulder (14) to contact on the piston rod with cone (15) microcephaly's end face, on piston and the cylinder body cooperation place piston seal groove (6) is arranged, seal ring is arranged in the groove.At piston and cylinder body matching part and have between the piston rod of through hole and a diameter is arranged less than piston external diameter, piston shoulder (9) greater than diameter of piston rod, seal groove (10) is arranged on the cylinder body of cylinder body and piston rod cooperation place, seal ring is arranged in the groove, on piston, screw rod (1) is arranged with the corresponding the other end of piston rod, this screw rod and piston and piston rod are on same shaft axis, and become one, the length of screw rod makes piston when position, the most close hole (7), screw rod can stretch out (3) at least 7 pitch of cylinder cap, in the part of stretching out cylinder cap nut (2) is arranged.
After pressure fluid is in import (7) enters piston cavity (8), piston action, and drive cone (15) motion by nut (18) ' packing ring (17) and cushion rubber (16) and make tapered sleeve (13) expansion, be pressed on the hole wall after the tapered sleeve expansion, cushion rubber pressurized expansion simultaneously, with hole (19) sealing, realize the purpose of auto lock sealing.When piston moves to through hole (11) and import (7) when being communicated with, fluid enters in the hole (19) of sealing by through hole from piston cavity.After hole (19) is full of fluid, under the fluid pressure input effect, this hole internal pressure improves rapidly, and the hole internal pressure reacts on the piston again by through hole, thereby the pressure that tapered sleeve is born is directly proportional with the closed hole internal pressure, realizes the function that close pressure frictional force is regulated automatically with sealing load.
Be this mechanism enters hole (19) from import (7) from motive sealing pressure fluid above, after import (7) blocked, turn nut (2) makes the through hole (11) on the piston rod be communicated with piston cavity (8), at this moment the salable pressure fluid of living in the hole (19) of this device, and can regulate seal friction power automatically.
Screw rod (1) in the time of need unloading lower sealing device, knocks with hand hammer gently in this mechanism after finishing seal operation, making cone break away from tapered sleeve can take out seal arrangement easily from the hole.
The present invention can realize the auto lock sealing, and can regulate seal friction power automatically according to sealing load, when needs unload lower sealing device, can directly knock screw rod (1) easily with its taking-up.Compare with existing " screw thread pressing machine structure ", have following advantage:
1. utilize hydrodynamic pressure from motive sealing, realize the sealing automation.
2. can regulate seal friction power automatically, sealing is reliable.
3. easy to operate, loading and unloading easily.
Accompanying drawing has been described structure of the present invention and principle.
The parts drawing that adjoint of the present invention reaches and accompanying drawing is supporting can be processed realization.
Description of drawings:
1. screw rod 2. nuts 3. cylinder caps 4. cylinder bodies 5. pistons 6. seal grooves 7. imports 8. piston cavity 9. pistons are takeed on 10. seal grooves, 11. through holes, 12. piston rods, 13. tapered sleeves, 14. shaft shoulders, 15. cones, 16. cushion rubbers, 17. packing rings, 18. nuts, 19. holes
Claims (4)
1, a kind of be used for the aperture so that the unpacking mode, utilize frictional force to seal up the robot device of hole internal pressure fluid, it is characterized in that this device utilizes piston (5) cylinder body (4) through hole (11) double-action mechanism and the shaft shoulder (14) of hydrodynamic pressure auto-action, the sealing of realization auto lock, the function of regulating seal friction power and convenient loading and unloading automatically.
2, according to the double-action mechanism of claim 1, it is characterized in that after pressure fluid is in import (7) enters piston cavity (8), piston action also makes tapered sleeve (13) expand and be pressed on the hole wall by nut (18) packing ring (17) and cushion rubber (16) drive cone (15) interlock, cushion rubber pressurized expansion simultaneously realizes the auto lock sealing with hole (19) sealing.
3, according to the double-action mechanism of claim 1, it is characterized in that moving to through hole (11) and import (7) when being communicated with when piston, pressure fluid enters in the sealed hole (19), after being full of fluid in the hole (19), pressure improves rapidly, this pressure reacts on the piston again, thereby pressure that tapered sleeve bears is directly proportional with hydrodynamic pressure in the closed hole (19), realizes that seal friction power regulates automatically with sealing-fluid pressure.
4, according to the feature shaft shoulder (14) of claim 1, it is characterized in that the sealing device after finishing sealing, knock screw rod (1) gently, seal arrangement can be taken out from closed hole (19) easily with hammer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105214 CN1020164C (en) | 1989-01-18 | 1989-01-18 | Automatic sealing device for sealing pressure fluid at orifice by friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105214 CN1020164C (en) | 1989-01-18 | 1989-01-18 | Automatic sealing device for sealing pressure fluid at orifice by friction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1036818A true CN1036818A (en) | 1989-11-01 |
| CN1020164C CN1020164C (en) | 1993-03-24 |
Family
ID=4855982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89105214 Expired - Fee Related CN1020164C (en) | 1989-01-18 | 1989-01-18 | Automatic sealing device for sealing pressure fluid at orifice by friction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1020164C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116960405A (en) * | 2023-09-20 | 2023-10-27 | 爱德曼氢能源装备有限公司 | Integrated intercooler of hydrogen fuel cell system |
-
1989
- 1989-01-18 CN CN 89105214 patent/CN1020164C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116960405A (en) * | 2023-09-20 | 2023-10-27 | 爱德曼氢能源装备有限公司 | Integrated intercooler of hydrogen fuel cell system |
| CN116960405B (en) * | 2023-09-20 | 2023-12-12 | 爱德曼氢能源装备有限公司 | Integrated intercooler of hydrogen fuel cell system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1020164C (en) | 1993-03-24 |
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Legal Events
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|---|---|---|---|
| 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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |