CN208966768U - A kind of all-hydraulic locking pushing mechanism - Google Patents
A kind of all-hydraulic locking pushing mechanism Download PDFInfo
- Publication number
- CN208966768U CN208966768U CN201821787804.0U CN201821787804U CN208966768U CN 208966768 U CN208966768 U CN 208966768U CN 201821787804 U CN201821787804 U CN 201821787804U CN 208966768 U CN208966768 U CN 208966768U
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- cylinder
- gland
- piston
- pipe
- snap ring
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Abstract
The utility model relates to a kind of all-hydraulic locking pushing mechanisms, it includes sequentially connected first cylinder from front to back, connecting cylinder and the second cylinder, piston component is equipped in first cylinder, reset assembly is equipped in second cylinder, piston component is fixedly connected with reset assembly by guide rod, the rear end of second cylinder is connected with liquid inlet joint pipe, the middle part of liquid inlet joint pipe is equipped with inlet, reset assembly includes the first gland and first back-moving spring, piston component includes big piston and the second gland, the both ends of second gland are fixedly connected with big piston and guide rod respectively, big piston includes thick section and fine flour, connecting tube is equipped in thin segment, small piston, snap ring, retaining ring seat and second back-moving spring, the feed pathway being connected to cavity is offered on thin segment side wall.Advantage is smart structural design, is carried out by controlling the circulation of pressurization and release of hydraulic system, can be realized and treat the gradually propulsion for pushing rod piece or pipe fitting to a direction.
Description
Technical field
The utility model belongs to the fields such as oil drilling, the taking and placing of coal field gass gas, horizontal well, high-pressure jet punching, specifically
Be related to a kind of all-hydraulic locking pushing mechanism, for elongated rod shape or tubular section all-hydraulic propulsion and/or exit.
Background technique
Currently, usually needing to grow in fields such as oil drilling, the taking and placing of coal field gass gas, horizontal well and high-pressure jet punchings
Rod-shaped or elongated tubular component is gradually stable to push ahead.For example, carrying out drill-well operation in a manner of high-pressure jet in horizontal well
When, need a kind of that jet pipe is stable from the device that is gradually advanced into from horizontal well drill mouth downwards on the ground, the device when necessary
It should be able to realize that jet pipe is stable to be gradually backed out from underground is upward.Lack in the prior art and realizes that above-mentioned technical purpose is all-hydraulic
The device of the way of propelling.
Utility model content
The utility model provides a kind of all-hydraulic locking pushing mechanism, it is desirable to provide one kind, which can be stablized, effectively makes stock
The device for the all-hydraulic power that shape or tubular section are pushed ahead or exited back, can with it is hydraulic for power to elongated rod shape
Or tubular section realizes being fixed and the propulsion of axial direction or exiting for radial direction.
The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of all-hydraulic locking pushing mechanism, packet
Sequentially connected first cylinder, connecting cylinder and the second cylinder from front to back are included, piston component is equipped in first cylinder, it is described
Reset assembly, the piston component and the reset assembly are equipped in second cylinder by across the connecting cylinder and hollow leading
It is fixedly connected to bar, the rear end of second cylinder is connected with liquid inlet joint pipe, and the middle part of the liquid inlet joint pipe, which is equipped with, to be used for
The inlet being connected to hydraulic system, the liquid inlet joint pipe is interior to be equipped with sealing sleeve pipe, and the reset assembly includes the first gland
And first back-moving spring, the both ends of first gland are fixedly connected with the guide rod and the sealing sleeve pipe respectively, described
First back-moving spring is sheathed on the guide rod and both ends and abuts respectively with the end wall of first gland and the connecting cylinder,
The piston component includes big piston and the second gland, the both ends of second gland respectively with the big piston and the guiding
Bar is fixedly connected, and the big piston includes thick section and the thin segment for being connected to the thick section rear, the thick section outer wall and described the
It is equipped with sealing structure between one cylinder inboard wall, is equipped in the thin segment multiple for connecting tube, small piston, snap ring, retaining ring seat and second
The cavity that position spring is sequentially loaded into from front to back, the connecting tube front end are connect with the thick section, and the small piston is sheathed on company
On adapter tube, the small piston is rearward moved when offering the feed pathway being connected to the cavity and feed liquor on the thin segment side wall
It moves to push the snap ring to lock rod piece or pipe fitting to be pushed, the big piston, small piston, snap ring, retaining ring seat, the first gland
With the through-hole passed through for rod piece or pipe fitting to be pushed is correspondingly provided at the central axis of the second gland, second gland
Front end is equipped with counterbore, and inner end wall of the both ends of the second back-moving spring respectively with the snap ring aft bulkhead and the counterbore is supported
It connects.
Based on the above technical solution, the utility model can also do following improvement.
Further, the liquid inlet joint pipe is made of leading portion pipe and back segment pipe and leading portion bore is greater than in back segment pipe
Diameter, the inlet are connected to the leading portion pipe, and sealing knot is equipped between the sealing sleeve pipe outer wall and the back segment inside pipe wall
Structure.
Use the above-mentioned improved benefit of further structure for, the big back segment bore of the leading portion bore of liquid inlet joint pipe is small,
Then sealing sleeve pipe can be connected and sealed with back segment pipe, and the highly pressurised liquid for preventing hydraulic system from injecting through inlet is leaked from rear
Out, while leading portion bore is larger, then it leaves the ring entered for the highly pressurised liquid of inlet injection between sealing sleeve pipe
Gap guarantees that highly pressurised liquid can smoothly enter into the second cylinder and connecting cylinder and the flowing of the first cylinder then to front, and then pushes small
Piston and big piston are acted accordingly.
Further, the snap ring is that the round table-like of the through-hole and the first half including being mutually symmetrical are provided at the axis of center
Ring and the second semi-ring, the front end of the retaining ring seat are equipped with the conical bore to match with the snap ring.
Use the above-mentioned improved benefit of further structure for structure is simple, can be preferably by the hydraulic axial direction to snap ring
Motive force is transformed into snap ring radially to the locking pressure of rod piece or pipe fitting.
Further, multiple be used for is equipped at intervals on first semi-ring and second semi-ring semi-cylindrical relative to each other
Increase the snap ring and treats the rod piece of promotion or the groove of pipe fitting locking pressure.
Use the above-mentioned improved benefit of further structure for after multiple grooves are arranged, the first semi-ring and the second semi-ring are compressed
The area of the respective face of rod piece or pipe fitting becomes smaller, and pressure increases, then frictional resistance increases, i.e. the locking effect to rod piece or pipe fitting
More preferably.
Further, the diameter of the snap ring rear end face is 47.5mm, the diameter of front end face is 32.5mm, the snap ring center
The diameter of the through-hole at axis is 19mm.
Use the above-mentioned improved benefit of further structure for the snap ring of above-mentioned size is suitable for the locking to conventional jet pipe.
Further, the both ends of the connecting cylinder are respectively equipped with external screw thread, the respective end of first cylinder and the second cylinder
It is respectively equipped with and the matched internal screw thread of the external screw thread.
The above-mentioned improved benefit of further structure is used to carry out screw thread company between, the first cylinder, connecting cylinder, the second cylinder
It connects, detachably, the replacement after easy access and damage component.
Further, the sealing structure includes several annular grooves and the rubber seal that is sheathed in the annular groove.
Use the above-mentioned improved benefit of further structure for structure is simple, and easy to process and sealing effect is good.
Compared with prior art, the utility model has the beneficial effects that
All-hydraulic locking pushing mechanism provided by the utility model, smart structural design, by the increasing for controlling hydraulic system
Pressure and the circulation of release carry out, and can be realized and treat the gradually propulsion for pushing rod piece or pipe fitting to a direction, in the process
When pressurization rod piece or pipe fitting locked by snap ring and by big piston driving forward, rod piece or pipe fitting are discharged by snap ring when release, big living
The rod piece or pipe fitting filling in the return under action of reset spring and being released keep motionless, circularly-supercharged and release in situ, Ji Keshi
The existing movement of rod piece or pipe fitting to a direction, which, which can be, gradually pushes ahead or gradually releases backward.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the all-hydraulic locking pushing mechanism of one kind provided by the utility model；
Fig. 2 is the cross-sectional view of all-hydraulic locking pushing mechanism piston component shown in FIG. 1；
Fig. 3 is the cross-sectional view of snap ring in piston component shown in Fig. 2；
Fig. 4 is the schematic diagram of an end face of snap ring shown in Fig. 3.
In attached drawing, parts list represented by the reference numerals are as follows:
1. the first cylinder；2. connecting cylinder；3. the second cylinder；4. guide rod；5. liquid inlet joint pipe；6. inlet；7. sealing
Casing；8. the first gland；9. first back-moving spring；10. big piston；11. the second gland；12. connecting tube；13. small piston；14.
Snap ring；140. the first semi-ring；141. second semi-rings；142. groove；15. retaining ring seat；16. second back-moving spring；17. feed liquor is logical
Road；18. annular groove.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with drawings and the specific embodiments, example is only used
In explaining the utility model, it is not intended to limit the scope of the utility model.
As shown in Figures 1 to 4, the utility model provides a kind of all-hydraulic locking pushing mechanism comprising from front to back successively
The first cylinder 1, connecting cylinder 2 and the second cylinder 3 of connection, first cylinder 1 is interior to be equipped with piston component, second cylinder 3
Interior to be equipped with reset assembly, the piston component and the reset assembly are by passing through the connecting cylinder 2 and hollow guide rod 4 is solid
Fixed connection, the rear end of second cylinder 3 are threaded with liquid inlet joint pipe 5, and the middle part of the liquid inlet joint pipe 5, which is equipped with, to be used for
The inlet 6 being connected to hydraulic system, the liquid inlet joint pipe 5 is interior to be equipped with sealing sleeve pipe 7, and the reset assembly includes the first pressure
Lid 8 and first back-moving spring 9, the both ends of first gland 8 are fixed with the guide rod 4 and the sealing sleeve pipe 7 respectively to be connected
Connect, the first back-moving spring 9 be sheathed on the guide rod 4 and both ends respectively with first gland 8 and the connecting cylinder 2
End wall abut, the piston component includes big piston 10 and the second gland 11, the both ends of second gland 11 respectively with institute
It states big piston 10 and the guide rod 4 is fixedly connected, the big piston 10 includes thick section and is connected to the thin of the thick section rear
Section is equipped with sealing structure between the thick section outer wall and 1 inner wall of the first cylinder, be equipped in the thin segment for connecting tube 12,
The cavity that small piston 13, snap ring 14, retaining ring seat 15 and second back-moving spring 16 are sequentially loaded into from front to back, before the connecting tube 12
End is connect with the thick section, and the small piston 13 is sheathed in connecting tube 12, is offered on the thin segment side wall and the cavity
The small piston 13 is rearward moved to push the snap ring 14 to lock bar to be pushed when the feed pathway 17 and feed liquor of connection
Part or pipe fitting, the big piston 10, small piston 13, snap ring 14, retaining ring seat 15, the first gland 8 and the second gland 11 central axis
The through-hole passed through for rod piece or pipe fitting to be pushed is correspondingly provided at line, the front end of second gland 11 is equipped with counterbore, institute
The both ends for stating second back-moving spring 16 are abutted with the inner end wall of 14 aft bulkhead of snap ring and the counterbore respectively.
Further, the liquid inlet joint pipe 5 is made of leading portion pipe and back segment pipe and leading portion bore is greater than in back segment pipe
Diameter, the inlet 6 are connected to the leading portion pipe, and sealing is equipped between 7 outer wall of sealing sleeve pipe and the back segment inside pipe wall
Structure.
Further, the snap ring 14 is to be provided with the round table-like of the through-hole and first including being mutually symmetrical at the axis of center
Semi-ring 140 and the second semi-ring 141, the front end of the retaining ring seat 15 are equipped with the conical bore to match with the snap ring 14.
Further, it is equipped at intervals on first semi-ring 140 and second semi-ring 141 semi-cylindrical relative to each other more
A groove 142 for treating the rod piece or pipe fitting locking pressure of promotion for increasing the snap ring 14.
Further, the diameter of 14 rear end face of snap ring is 47.5mm, the diameter of front end face is 32.5mm, the snap ring 14
The diameter of the through-hole at central axis is 19mm.
Further, the both ends of the connecting cylinder 2 are respectively equipped with external screw thread, first cylinder 1 and the second cylinder 3 it is corresponding
End is respectively equipped with and the matched internal screw thread of the external screw thread.
Further, the sealing structure includes several annular grooves 18 and the rubber seal that is sheathed in the annular groove 18.
It should be noted that being equipped with sealing structure, the rubber of the sealing structure between big piston (thick section) and the first cylinder
A relatively large stiction is overcome before big piston is pushed and moved forward between sealing ring and the first cylinder, moved
The frictional force slightly reduces after dynamic, therefore can be introduced into before pushing big piston Forward in the highly pressurised liquid of inlet injection
Small piston is pushed to move backward in the cavity of big piston (thin segment), to make snap ring move back, because of retaining ring seat and card during moving back
The matched circular cone structure of ring can make the first semi-ring for constituting snap ring and the second semi-ring move closer to (before being passed through highly pressurised liquid, the
One and second the rod piece or pipe fitting to be pushed that is extended into of semi-ring strut), to clamp and rod piece or pipe fitting to be pushed, continue
Increase the pressure of highly pressurised liquid, clamping force is gradually increased, and when rod piece or pipe fitting are clamped completely, highly pressurised liquid is also just pushed
Or be further continued for big piston could being pushed to move forward when increasing pressure, then can be driven when big piston is pushed forward the rod piece being locked or
Pipe fitting moves forward, and after a mobile stroke (for example pushing 20cm forward), hydraulic system release, liquid decompression is very fast, originally
It is the pipe fitting or rod piece that release is clamped completely that compressed second back-moving spring, which pushes small piston Forward small distance, originally quilt
The first back-moving spring of compression pushes big piston return, and return is discharged because of pipe fitting or rod piece by snap ring in the process, therefore not will drive
Rod piece or pipe fitting return, and complete a promotion circulation.Repetition pressurization and the stress-relief process for controlling hydraulic system, can be realized pipe fitting
Or the continuous of rod piece is pushed to a direction.
It is understood that the stroke for needing small piston to move forward or retreat when locking and release plumbing component because of snap ring or rod piece
Very short (time is also shorter), much smaller than the propulsion stroke of big piston, therefore in addition to aforesaid way, can also be big piston Forward or
Locking of the snap ring to pipe fitting or rod piece is just realized during retrogressing, similarly can be realized the utility model to rod piece or pipe
The locking and promotion purpose of part
In addition, so it is easy to understand that when a system need simultaneously pipe fitting or rod piece propulsion to direction and to
When exiting of opposite direction, at this time the system should include at least two all-hydraulic locking pushing mechanisms provided by the utility model and
The pushing direction of two all-hydraulic locking pushing mechanisms is opposite when installation.
When the propulsive force of needs is larger, multiple all-hydraulic locking pushing mechanisms provided by the utility model can be used, together
Step pressurization and unloading, to provide biggish propulsive force to rod piece or pipe fitting.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (7)
1. a kind of all-hydraulic locking pushing mechanism, which is characterized in that including sequentially connected first cylinder (1) from front to back, even
Connect cylinder (2) and the second cylinder (3), first cylinder (1) is interior to be equipped with piston component, is equipped with and resets in second cylinder (3)
Component, the piston component and the reset assembly are by passing through the connecting cylinder (2) and the fixed company of hollow guide rod (4)
Connect, the rear end of second cylinder (3) is connected with liquid inlet joint pipe (5), the middle part of the liquid inlet joint pipe (5) be equipped with for
The inlet (6) of hydraulic system connection, is equipped with sealing sleeve pipe (7) in the liquid inlet joint pipe (5), and the reset assembly includes the
One gland (8) and first back-moving spring (9), the both ends of first gland (8) respectively with the guide rod (4) and the sealing
Casing (7) is fixedly connected, and the first back-moving spring (9) is sheathed on the guide rod (4) and both ends are respectively with described first
The end wall of gland (8) and the connecting cylinder (2) abuts, and the piston component includes big piston (10) and the second gland (11), institute
The both ends for stating the second gland (11) are fixedly connected with the big piston (10) and the guide rod (4) respectively, the big piston
It (10) include thick section and the thin segment for being connected to the thick section rear, between the thick section outer wall and first cylinder (1) inner wall
Equipped with sealing structure, it is equipped in the thin segment for connecting tube (12), small piston (13), snap ring (14), retaining ring seat (15) and second
The cavity that reset spring (16) is sequentially loaded into from front to back, connecting tube (12) front end are connect with the thick section, the small work
Plug (13) be sheathed on connecting tube (12), offered on the thin segment side wall feed pathway (17) being connected to the cavity and into
The small piston (13) is rearward moved to push the snap ring (14) to lock rod piece or pipe fitting to be pushed, the big work when liquid
It fills in equal at the central axis of (10), small piston (13), snap ring (14), retaining ring seat (15), the first gland (8) and the second gland (11)
It is correspondingly provided with the through-hole passed through for rod piece or pipe fitting to be pushed, the front end of second gland (11) is equipped with counterbore, and described the
The both ends of two reset springs (16) are abutted with the inner end wall of the snap ring (14) aft bulkhead and the counterbore respectively.
2. a kind of all-hydraulic locking pushing mechanism according to claim 1, which is characterized in that the liquid inlet joint pipe (5)
It is made of leading portion pipe and back segment pipe and leading portion bore is greater than the internal diameter of back segment pipe, the inlet (6) and the leading portion Guan Lian
It is logical, sealing structure is equipped between sealing sleeve pipe (7) outer wall and the back segment inside pipe wall.
3. a kind of all-hydraulic locking pushing mechanism according to claim 1, which is characterized in that centered on the snap ring (14)
The round table-like of the through-hole and the first semi-ring (140) and the second semi-ring (141) including being mutually symmetrical, the card are provided at axis
The front end of ring seat (15) is equipped with the conical bore to match with the snap ring (14).
4. a kind of all-hydraulic locking pushing mechanism according to claim 3, which is characterized in that first semi-ring (140)
And it is equipped at intervals with multiple treat for increasing the snap ring (14) on second semi-ring (141) semi-cylindrical relative to each other and pushes away
The groove (142) of dynamic rod piece or pipe fitting locking pressure.
5. a kind of all-hydraulic locking pushing mechanism according to claim 3, which is characterized in that snap ring (14) rear end face
Diameter be 47.5mm, the diameter of front end face is 32.5mm, the diameter of the through-hole at snap ring (14) central axis is
19mm。
6. a kind of all-hydraulic locking pushing mechanism according to any one of claims 1 to 5, which is characterized in that the connection
The both ends of cylinder (2) are respectively equipped with external screw thread, the respective end of first cylinder (1) and the second cylinder (3) be respectively equipped with it is described
The matched internal screw thread of external screw thread.
7. a kind of all-hydraulic locking pushing mechanism according to any one of claims 1 to 5, which is characterized in that the sealing
Structure includes several annular grooves (18) and the rubber seal that is sheathed in the annular groove (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821787804.0U CN208966768U (en) | 2018-10-31 | 2018-10-31 | A kind of all-hydraulic locking pushing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821787804.0U CN208966768U (en) | 2018-10-31 | 2018-10-31 | A kind of all-hydraulic locking pushing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208966768U true CN208966768U (en) | 2019-06-11 |
Family
ID=66760774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821787804.0U Expired - Fee Related CN208966768U (en) | 2018-10-31 | 2018-10-31 | A kind of all-hydraulic locking pushing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208966768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210034A (en) * | 2018-10-31 | 2019-01-15 | 菏泽市恒大石油机械配件厂 | A kind of all-hydraulic locking pushing mechanism |
-
2018
- 2018-10-31 CN CN201821787804.0U patent/CN208966768U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210034A (en) * | 2018-10-31 | 2019-01-15 | 菏泽市恒大石油机械配件厂 | A kind of all-hydraulic locking pushing mechanism |
| CN109210034B (en) * | 2018-10-31 | 2024-02-27 | 菏泽市恒大石油机械配件厂 | Full-hydraulic locking pushing mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190611 Termination date: 20211031 |