CN209687454U - Compensation ram preventer locking device built in a kind of fluid cylinder - Google Patents
Compensation ram preventer locking device built in a kind of fluid cylinder Download PDFInfo
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- CN209687454U CN209687454U CN201920039866.1U CN201920039866U CN209687454U CN 209687454 U CN209687454 U CN 209687454U CN 201920039866 U CN201920039866 U CN 201920039866U CN 209687454 U CN209687454 U CN 209687454U
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Abstract
The utility model discloses ram preventer locking devices compensation built in a kind of fluid cylinder, are mainly connected bolt by locking piston, locking cylinder cap, locking wedge block, main piston, hydraulic cylinder, spacer flanger, connecting shaft, flashboard axis, wear ring, sealing element with fluid cylinder and are formed；Main piston is provided in hydraulic cylinder, main piston is equipped with the runner of connection internal piston close to the endpiece position of spacer flanger one end, one end far from spacer flanger is uniformly provided with several apertures；The locking piston that longitudinal section is wedge surface is arranged in main piston, the wedge surface for being close to locking piston is equipped with several locking wedge blocks, and each locking wedge block clamping fixed is in an aperture of main piston.The hydraulic locking apparatus is built in main piston using locking piston, is same oil circuit with flashboard is closed；Locking piston and locking wedge block cooperation realize that locking device can compensate locking stroke automatically when ram block is closed, and guarantee ram seal effect.
Description
Technical field
The utility model belongs to petroleum gas drilling and extracting equipment technical field, and it is anti-to be related to compensation flashboard built in a kind of fluid cylinder
Spray apparatus locking device.
Background technique
During petroleum, gas drilling, since bottom pressure is not easy to predict, geological condition is complicated, when encountering high pressure
Oil-gas Layer or drilling fluid mud are polluted by bottoms stream and density reduces, when bottom pressure is more than drilling fluid mud column pressure,
High pressure oil air-flow will invade pit shaft and the accidents such as well kick or blowout occur, and preventer should start rapidly closing well, at this time preventer one
Denier failure, will lead to the major accidents such as blowout, causes equipment damage, environmental pollution and casualties, preventer locking device is just
It is to lock ram block after preventer closing well, moves out, guarantee anti-under the pressure effect for preventing flashboard to fluctuate in well
The stability and reliability of spray apparatus shut-in well.
The flashboard switch and closing and opening side doors of ram preventer are all made of hydraulic-driven, are pushed and are lived by the hydraulic oil in hydraulic cylinder
Plug, flashboard axis and flashboard move horizontally flashboard to well head direction until closing flashboard, reach shut-in well, effectively control well head pressure
The purpose of power must then use locking device lock ram position when hydraulic failure or need shut-in well for a long time.It is common at present
Locking mode include manual locking device and hydraulic locking apparatus, wherein manual locking device operates large labor intensity, speed
Slowly, and locking is using screw drive, and screw thread gets rusty easily in situ of drilling well operating environment, makes to lock and unlock difficult, makes
It cannot smoothly be closed or opened at flashboard；And hydraulic locking apparatus is fixed there are locked position, is unable to satisfy ram seal abrasion
Afterwards, the requirement that locking device stroke compensates automatically.
Utility model content
The purpose of the utility model is to provide ram preventer locking device compensation built in a kind of fluid cylinder, solve due to
Ram block sealing wear cause hydraulic locking stroke lengthen the problem of, realize ram block close when locking device from
Dynamic compensation locking.
The utility model is the technical scheme adopted is that compensation ram preventer locking device built in a kind of fluid cylinder, packet
Master cylinder cover is included, master cylinder cover one end has been bolted locking cylinder cap by the connection of interior hexagonal, and the other end of master cylinder cover is connected with hydraulic
Cylinder sleeve, the other end of hydraulic cylinder are connected with spacer flanger, and master cylinder cover, hydraulic cylinder and spacer flanger connect bolt by fluid cylinder
It is connected as one；Main piston is provided in hydraulic cylinder, main piston is equipped with connection close to the endpiece position of spacer flanger one end and lives
Runner inside plug, one end far from spacer flanger are uniformly provided with several apertures；It is wedge that longitudinal section is arranged in main piston
The locking piston in face, the wedge surface for being close to locking piston are equipped with several locking wedge blocks, and each locking wedge block clamping fixed is in master
In one aperture of piston；The end of main piston is connected with the connecting shaft through spacer flanger, and main piston is by being arranged in end
In set screw thread with connect axis connection, be connected with flashboard axis in the other end of connecting shaft, the flashboard axis other end is for installing flashboard
Assembly；Hydraulic oil duct I is communicated on spacer flanger, locking cylinder, which covers, is communicated with hydraulic oil duct II.
The utility model is also characterized by
It locks and is equipped with sealed groove in piston, sealed groove is provided with locking piston seal, the inner shaft shape with main piston
At complete seal；The wedge surface of locking piston is matched with locking wedge block lower end surface.
Locking wedge block is cylindrical structure, and bottom surface is concaved circular cambered surface, and when locking can be on the wedge surface sliding of locking piston, top
Face contacts for raised arc surface, with the interior guide groove of master cylinder cover inner face.
The outer end face that main piston is in contact with hydraulic cylinder is equipped with embedded main piston sealing ring and wear ring, main piston
Sealing ring is used to seal main piston and hydraulic cylinder；The two end faces of hydraulic cylinder are equipped with embedded cylinder liner packing ring, wherein one
End forms with master cylinder cover inner face and seals, and the other end is inserted into spacer flanger embedded portion and forms sealing.
The inner surface of spacer flanger is equipped with embedded sealing I and sealing II, forms complete seal with connecting shaft, wherein
Sealing I is used to seal oil pressure when closing flashboard, and sealing II is used to seal well pressure.
Cylinder cap sealing ring is equipped between master cylinder cover and the interior loop interface for locking cylinder cap.
Cylinder liner packing ring II is provided between hydraulic cylinder and the interior loop interface of master cylinder cover.
The utility model has the beneficial effects that compensation ram preventer locking dress built in a kind of fluid cylinder of the utility model
It sets and is built in main piston using locking piston, be same oil circuit with flashboard is closed；It locks piston and locking wedge block cooperation is realized
Locking device can compensate locking stroke automatically when ram block is closed, and guarantee ram seal effect.
Detailed description of the invention
Fig. 1 is the unlock of the utility model locking device, flashboard open state schematic diagram；
Fig. 2 is the closing of the utility model flashboard, locking device locking state schematic diagram；
Fig. 3 is the Section A-A schematic diagram of Fig. 2；
Fig. 4 is that the utility model locks piston schematic diagram.
In figure: 1. locking pistons, 2. locking cylinder caps, 3. locking wedge blocks, 4. master cylinder covers, 5. main pistons, 6. hydraulic cylinders, 7.
Hydraulic oil duct I, 8. spacer flangers, 9. connecting shafts, 10. flashboard axis, 11. sealings I, 12. sealings II, 13. cylinder liner packing rings
I, 14. wear rings, 15. main piston sealing rings, 16. fluid cylinders connection bolt, 17. locking piston seals, 18. cylinder cap sealing rings,
19. hexagonal connects bolt, 20. hydraulic oil ducts II, 21. cylinder liner packing rings II, 22. runners in.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
Compensation ram preventer locking device built in a kind of fluid cylinder, structure is as shown in Figure 1, include master cylinder cover 4, master cylinder cover
4 one end connect bolt 19 by interior hexagonal and are connected with locking cylinder cap 2, and the other end of master cylinder cover 4 is connected with hydraulic cylinder 6, hydraulic
The other end of cylinder sleeve 6 is connected with spacer flanger 8, and master cylinder cover 4, hydraulic cylinder 6 and spacer flanger 8 connect bolt 16 by fluid cylinder and connect
It is connected in one；Main piston 5 is provided in hydraulic cylinder 6, main piston 5 is equipped with connection close to the endpiece position of 8 one end of spacer flanger
The runner 22 of internal piston, one end far from spacer flanger 8 are uniformly provided with several apertures；Vertical cut is arranged in main piston 5
Face is the locking piston 1 (as shown in Figure 4) of wedge surface, and the wedge surface for being close to locking piston 1 is equipped with several locking wedge blocks 3, each
3 clamping fixed of locking wedge block is in an aperture of main piston 5；The end of main piston 5 is connected with the connection through spacer flanger 8
Axis 9, main piston 5 set screw thread and connect with connecting shaft 9 by being arranged in end, are connected with flashboard in the other end of connecting shaft 9
Axis 10,10 other end of flashboard axis are used to install flashboard assembly；It is communicated with hydraulic oil duct I 7 on spacer flanger 8, locks and connects on cylinder cap 2
It is connected with hydraulic oil duct II 20.
It locks and is equipped with sealed groove in piston 1, sealed groove is provided with locking piston seal 17, interior with main piston 5
Axis forms complete seal；The wedge surface of locking piston 1 is matched with 3 lower end surface of locking wedge block.
Locking wedge block 3 is cylindrical structure, and bottom surface is concaved circular cambered surface, when locking can in the wedge surface sliding of locking piston 1,
Top surface contacts for raised arc surface, with the interior guide groove of 4 inner face of master cylinder cover.
The outer end face that main piston 5 is in contact with hydraulic cylinder 6 is equipped with embedded main piston sealing ring 15 and wear ring 14,
Main piston sealing ring 15 is used to seal main piston 5 and hydraulic cylinder 6；It is close that the two end faces of hydraulic cylinder 6 are equipped with embedded cylinder sleeve
Seal 13, wherein one end and 4 inner face of master cylinder cover, which are formed, seals, and the other end is inserted into 8 embedded portion of spacer flanger and forms sealing.
The inner surface of spacer flanger 8 forms complete close equipped with embedded sealing I 11 and sealing II 12, with connecting shaft 9
Envelope, wherein sealing I 11 is used to seal oil pressure when closing flashboard, and sealing II 12 is used to seal well pressure.
Cylinder cap sealing ring 18 is equipped between master cylinder cover 4 and the interior loop interface for locking cylinder cap 2.
Cylinder liner packing ring II 21 is provided between hydraulic cylinder 6 and the interior loop interface of master cylinder cover 4.
The working condition of compensation ram preventer locking device is as follows built in a kind of fluid cylinder of the utility model:
When carrying out shut-in well closing flashboard, hydraulic oil enters cavity from hydraulic oil duct II 20, by main piston sealing ring
15, piston seal 17, cylinder cap sealing ring 18 and cylinder liner packing ring II 21 are locked and forms complete seal space, is locked under the state
Piston 1 due to locking wedge block 3 effect and be stuck and can not move, hydraulic oil will first push main piston 5 drive 10 edge of flashboard axis
Axis is mobile to close flashboard, and locking piston 1 and locking wedge block 5 will move along, and enters in master cylinder cover 4 tiltedly to locking wedge block 3
Behind face, locking piston 1 will also be moved along axis, until main piston 5 pushes flashboard to completely close, locking piston 1 and locking wedge block 3
Realization flashboard locking in in-position will lead to locking stroke lengthening, the locking using the case where abrasion since ram seal exists
Device can compensate increased locking stroke by locking piston 1 and the cooperation of locking wedge block 3 automatically, guarantee ram seal effect, such as
State shown in Fig. 3.
Referring to Fig. 2 and Fig. 3, utility model device flashboard closed, locking device locking state, when needing to open flashboard
When, hydraulic oil enters cavity from hydraulic oil duct 7, by main piston sealing ring 15, locking piston seal 17, sealing II 13 and cylinder
It covers sealing ring I 13 and forms complete seal space, main piston 5 is due to will be unable to move under the locking effect of locking wedge block 3 under the state
It is dynamic, and lock piston 1 under the effect of the pressure, be moved to the left, piston 1 to be locked is moved to certain position, locking wedge block 3 will under
Lock is transfered from one place to another under escort, so that main piston 5 can be moved to the left along axis, until fully opening flashboard, state as shown in Figure 2.
Claims (7)
1. compensation ram preventer locking device built in a kind of fluid cylinder, it is characterised in that: including master cylinder cover (4), the master cylinder
Lid (4) one end is connected with locking cylinder cap (2) by interior hexagonal connection bolt (19), and the other end of the master cylinder cover (4) is connected with
The other end of hydraulic cylinder (6), the hydraulic cylinder (6) is connected with spacer flanger (8), the master cylinder cover (4), hydraulic cylinder
(6) bolt (16) is connected by fluid cylinder with spacer flanger (8) to be connected as one；Main piston is provided in the hydraulic cylinder (6)
(5), the main piston (5) is equipped with the runner (22), separate of connection internal piston close to the endpiece position of spacer flanger (8) one end
One end of spacer flanger (8) is uniformly provided with several apertures；The locking that longitudinal section is wedge surface is arranged in the main piston (5)
Piston (1), the wedge surface for being close to locking piston (1) are equipped with several locking wedge blocks (3), each locking wedge block (3)
Clamping fixed is in an aperture of the main piston (5)；The end of the main piston (5) is connected with through spacer flanger (8)
Connecting shaft (9), the main piston (5) sets screw thread and connect with connecting shaft (9) by being arranged in end, the connecting shaft
(9) it is connected in the other end flashboard axis (10), flashboard axis (10) other end is used to install flashboard assembly；The intermediate method
It is communicated with hydraulic oil duct I (7) on blue (8), is communicated with hydraulic oil duct II (20) on the locking cylinder cap (2).
2. compensation ram preventer locking device built in a kind of fluid cylinder according to claim 1, it is characterised in that: described
It locks and is equipped with sealed groove in piston (1), the sealed groove, which is provided with, locks piston seal (17) and main piston (5)
Inner shaft forms complete seal；The wedge surface of locking piston (1) is matched with locking wedge block (3) lower end surface.
3. compensation ram preventer locking device built in a kind of fluid cylinder according to claim 1 or 2, it is characterised in that:
The locking wedge block (3) is cylindrical structure, and bottom surface is concaved circular cambered surface, and top surface is raised arc surface and master cylinder cover (4) inner face
Interior guide groove contact.
4. compensation ram preventer locking device built in a kind of fluid cylinder according to claim 1, it is characterised in that: described
The outer end face that main piston (5) is in contact with hydraulic cylinder (6) is equipped with embedded main piston sealing ring (15) and wear ring (14),
The main piston sealing ring (15) is used to seal main piston (5) and hydraulic cylinder (6)；The two end faces of the hydraulic cylinder (6)
Equipped with embedded cylinder liner packing ring (13), wherein one end and master cylinder cover (4) inner face, which are formed, is sealed, and the other end is inserted into spacer flanger
(8) embedded portion forms sealing.
5. compensation ram preventer locking device built in a kind of fluid cylinder according to claim 1, it is characterised in that: described
The inner surface of spacer flanger (8) is equipped with embedded sealing I (11) and sealing II (12), has been formed with the connecting shaft (9)
Whole sealing, wherein sealing I (11) is used to seal oil pressure when closing flashboard, and sealing II (12) is used to seal well pressure.
6. compensation ram preventer locking device built in a kind of fluid cylinder according to claim 1, it is characterised in that: described
Cylinder cap sealing ring (18) are equipped between master cylinder cover (4) and the interior loop interface for locking cylinder cap (2).
7. compensation ram preventer locking device built in a kind of fluid cylinder according to claim 1, it is characterised in that: described
Cylinder liner packing ring II (21) is provided between hydraulic cylinder (6) and the interior loop interface of master cylinder cover (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920039866.1U CN209687454U (en) | 2019-01-10 | 2019-01-10 | Compensation ram preventer locking device built in a kind of fluid cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920039866.1U CN209687454U (en) | 2019-01-10 | 2019-01-10 | Compensation ram preventer locking device built in a kind of fluid cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209687454U true CN209687454U (en) | 2019-11-26 |
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ID=68598422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920039866.1U Active CN209687454U (en) | 2019-01-10 | 2019-01-10 | Compensation ram preventer locking device built in a kind of fluid cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209687454U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173473A (en) * | 2020-03-11 | 2020-05-19 | 上海神开石油设备有限公司 | Double-function locking device of hydraulic lock and hand lock |
| CN111188589A (en) * | 2020-01-07 | 2020-05-22 | 姜兴安 | Ram blowout preventer for well control device |
| CN112012687B (en) * | 2020-10-27 | 2021-01-22 | 山东威盟石油机械有限公司 | Efficient blowout prevention box for coiled tubing |
-
2019
- 2019-01-10 CN CN201920039866.1U patent/CN209687454U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188589A (en) * | 2020-01-07 | 2020-05-22 | 姜兴安 | Ram blowout preventer for well control device |
| CN111188589B (en) * | 2020-01-07 | 2022-01-14 | 濮阳市轮通机械设备修造有限公司 | Ram blowout preventer for well control device |
| CN111173473A (en) * | 2020-03-11 | 2020-05-19 | 上海神开石油设备有限公司 | Double-function locking device of hydraulic lock and hand lock |
| CN112012687B (en) * | 2020-10-27 | 2021-01-22 | 山东威盟石油机械有限公司 | Efficient blowout prevention box for coiled tubing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201221 Address after: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province Patentee after: Baoji Oilfield Machinery Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co., Ltd Address before: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province Patentee before: Baoji Oilfield Machinery Co.,Ltd. |
|
| TR01 | Transfer of patent right |