CN110284851A - A kind of Ram Preventer Hydraulic Locking Device - Google Patents
A kind of Ram Preventer Hydraulic Locking Device Download PDFInfo
- Publication number
- CN110284851A CN110284851A CN201910680317.7A CN201910680317A CN110284851A CN 110284851 A CN110284851 A CN 110284851A CN 201910680317 A CN201910680317 A CN 201910680317A CN 110284851 A CN110284851 A CN 110284851A
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- piston
- wedge
- cover
- voussoir
- cylinder
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- 230000007246 mechanism Effects 0.000 claims abstract description 87
- 239000007788 liquid Substances 0.000 claims abstract description 54
- 230000001360 synchronised effect Effects 0.000 claims abstract description 29
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 34
- 230000000694 effects Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 244000144985 peep Species 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 4
- 239000010727 cylinder oil Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 239000003292 glue Substances 0.000 description 5
- 230000002265 prevention Effects 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 241001280173 Crassula muscosa Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008141 laxative Substances 0.000 description 1
- 230000002475 laxative effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 208000004141 microcephaly Diseases 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
- E21B33/061—Ram-type blow-out preventers, e.g. with pivoting rams
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Actuator (AREA)
Abstract
A kind of Ram Preventer Hydraulic Locking Device, it is characterized by: the locking device is made of primary lock mechanism with synchronous retaining mechanism, primary lock mechanism includes, piston component, cover of wedge, voussoir, liquid locks cylinder, voussoir is assemblied in the square hole of piston component front, the lower inclined plane of voussoir and the inclined-plane of cover of wedge fit, voussoir is axially moved with piston, make to be moved forward and backward in the slideway of liquid lock cylinder at the top of voussoir, the synchronous retaining mechanism being made of the conical ring of spring pre-tightening with cone disk is provided in primary lock device front end, it is equipped in the end of liquid lock cylinder by differential piston, the indication mechanism of helmet and cylinder cap composition, it can working condition from external observation to mechanism.The present invention has which has a compact structure and a reasonable design, and locking and unlock are not influenced by hydraulic oil condition and other factors.In the locking of primary lock mechanism, synchronous retaining mechanism is synchronous to be locked, and keeps locking more reliable.Coupling mechanism force is provided by plunger piston locking, can reduce component wear, and releasing force is provided by unlock piston, it is easier to be unlocked.
Description
Technical field
The present invention relates to a kind of petroleum machinery, especially a kind of Ram Preventer Hydraulic Locking Device.
Background technique
Currently, well known technology has, such as: Chinese invention patent CN108756803A discloses one kind and surges double disc blowout prevention
Device, comprising: Integral hydraulic cylinder, half envelope flashboard, blind rams, pole shutoff, all-or-nothing piece, oil inlet flange and blind flange；Half envelope lock
Plate and blind rams are disposed as flat, and are arranged inside blowout preventer body；Half envelope flashboard and hermetically sealed flashboard with one
The connection of formula hydraulic cylinder；Pole shutoff and all-or-nothing piece are fixed on blowout preventer body, and are connected to respectively with oil inlet flange；And pole shutoff and
All-or-nothing piece cooperates with blowout preventer bonnet respectively, and blowout preventer bonnet and blowout preventer body lid are closed and connected；Blind flange and oil inlet flanged joint.This
Preventer seals the combination of gate using Integral hydraulic cylinder, full envelope gate and half, overcomes existing preventer blowout prevention performance difference
Defect improves the blowout prevention and sealing performance of preventer.
Such as: Chinese invention patent CN104790898B discloses a kind of multi-purpose combined type annular damper preventer, including
Ram preventer, well head valve module, annular space injection device, well head lower flange, casing nipple, the upper end of the ram preventer
Connect by flange with well head valve module, the lower end of the ram preventer successively from top to bottom with annular space injection device, well head
Lower flange, casing nipple are fixedly connected, and the well head valve module, ram preventer, annular space injection device, well head laxative remedy
Blue, the respective inner cavity of casing nipple is conducted.Well head height is reduced, to reduce the waste of resource, the scene of improving is applied
Work environment, while eliminating some potential safety problems.When solving lower tubing coupling by pressure release, balance valve group simultaneously, resistance
Greatly, it is difficult to transfer, the problem of annular rubber core well damage.
Such as: Chinese utility model patent CN203626699U discloses a kind of hydraulic flashboard blowout preventer of variable diameter sealing,
Including shell, hydraulic cylinder, the flashboard assembly of variable diameter, side door, side door bolt, port connection, the hydraulic flashboard blowout prevention of variable diameter sealing
Device further includes sealing mechanism；The flashboard assembly of variable diameter includes variable bore ram ontology and sealing element；Sealing element includes top glue core, preceding
Portion's variable diameter glue core, front variable diameter glue core include ironware, parallels, the motion bar, connecting rod of variable diameter colloid, special-shaped cam structure；Before
Portion's variable diameter glue core is by ironware, four parallels, two motion bars and two connecting rods and rubber of multiple special-shaped cam structures in mould
Disposably vulcanize in tool and becomes an entirety；It can close different specification size by the flashboard total performance of one group variable diameter
Tubing string, to realize that variable diameter seals, and structure is simple, easy for installation；To greatly improve the labour production effect of worker
Rate prevents to generate new security risk.
Ram preventer is important drilling channel equipment safe involved in oil drilling and workover treatment.Ram preventer
After hydraulic closing, to ensure safety, it is also necessary to carry out mechanical interlocking to it.Requirement of the preventer to locking device is that locking can
It leans on, unlock is easy.The currently used locking mode of ram preventer has manual locking and hydraulic locking two ways, manual locking
It is simple and reliable, but labor intensity is big, and the occasion of the limited spaces such as unsuitable marine drilling platform uses, hydraulic locking
It is able to achieve automatically lock, is relatively advanced locking mode.The blowout preventer hydraulic locking device produced both at home and abroad at present mainly has
The several frequently seen forms such as long tapered bar formula, screw rod fluted disc disengaging type, Wedge-type.
Long tapered bar formula locking device reliable lock, but its structure size is big, and it is frequently present of asking of being difficult to unlock after locking
Topic, locking position are prone to wear, and make the reduction of its reliability.Screw rod fluted disc disengaging type locking device structure is complicated, by mechanical former
The limitation of reason, locked position be it is discontinuous, the rigidity after locking is poor, and clutch tooth is taken inventory the problem of being prone to wear.Wedge
Block formula locking device is usually located inside oil cylinder, and reliability is affected by hydraulic oil and other factors, and hydraulic oil glues
Degree, pollution level, environment temperature, surface roughness of components etc., can all impact it, and being easy to appear cannot lock,
The problems such as unlocking, the typically no external indication mechanism of such locking device are difficult to after locking again, operator is difficult to understand its work
State.
Summary of the invention
In view of the above technical problems, the object of the present invention is to provide a kind of Ram Preventer Hydraulic Locking Devices.
A kind of Ram Preventer Hydraulic Locking Device, it is characterised in that: the locking device is by primary lock mechanism and synchrolock
Tight mechanism is constituted, and the primary lock mechanism includes piston component (1), cover of wedge (3), voussoir (4), liquid lock cylinder (5), voussoir (4)
It is assemblied in the square hole (101) of piston component (1) front, inclined-plane (301) phase of the lower inclined plane (401) and cover of wedge (3) of voussoir (4)
Fitting, cover of wedge (3) and voussoir (4) are designed using the biggish angle of wedge, and voussoir (4) is axially moved with piston (1), makes voussoir (4)
Top liquid lock cylinder (5) slideway in be moved forward and backward, in the front end of primary lock mechanism, be provided with by spring (9) pre-tighten cone
The synchronous retaining mechanism that ring (12) is constituted with cone disk (11), to ensure overall mechanism reliable lock, conical ring (12) and cone disk (11)
It is designed using the lesser angle of wedge, the locking action of retaining mechanism is completed by minor diameter plunger piston locking (8), by major diameter solution when unlock
It locks piston (13) to complete, the display being made of differential piston (7), helmet (6) and cylinder cap (15) is equipped in the end of liquid lock cylinder (5)
Mechanism, can working condition from external observation to mechanism.
It is uniformly distributed along the circumference and is opened up there are three square hole (101) in the front of piston component (1), three voussoirs (4) are assembled respectively
In the square hole (101), make the lower inclined planes (4) of three voussoir (4) bottoms respectively on cover of wedge (3) uniformly distributed three at inclined-plane (301)
Contact, opens up with inclined-plane (301) staggered position that there are three spring storehouse holes (303) in the cover of wedge (3), in spring storehouse hole (303)
It is inside installed with the pre-tightening mechanism being made of spring pressed stud (14) and spring (9) respectively, is sequentially installed with bullet at the rear portion of cover of wedge (3)
Spring gasket ring (10), cone disk (11), conical ring (12) and unlock piston (13), spring gasket ring (10) are located at spring (9) and cone disk
(11) between, conical ring (12) is installed in cone disk (11) inside, and the inner hole flange (1202) of conical ring (12) is installed on cover of wedge (3) ring-type
In groove (304), the piston rod of unlock piston (13) is set in the cover of wedge hole (302) of cover of wedge (3), in the end of cover of wedge (3)
It is equipped with plunger piston locking (8) through screw, the plunger rod of plunger piston locking (8) is inserted into the piston rod of unlock piston (13).
The left end of the piston component (1) be a hollow cylindrical configuration, by carve set (3), spring pressed stud (14), spring (9),
Spring gasket ring (10), conical ring (12), cone disk (11) are placed in piston component (1) with the synchronous retaining mechanism that piston (13) are formed is unlocked
Hollow cylindrical configuration in, piston component (1) is placed in together with the synchronization retaining mechanism in piston component (1) hollow sleeve by cylinder cap
(15), in the cavity that liquid lock cylinder (5) and oil cylinder (2) connect and compose, the cylinder cap (15) connect through bolt with liquid lock cylinder (5) solid
It is fixed, side door (16) are equipped at the rear portion of oil cylinder (2), liquid lock cylinder (5) is locked through stay bolt (17) and side door (16), differential work
Plug (7) is installed between helmet (6) and cylinder cap (15), and helmet (6) is connected and fixed through bolt and cylinder cap (15), in helmet (6) circle
Circumferential direction offers peep hole (601), and helmet (6) lower part offers atmosphere through slot (602).
The major diameter of the piston component (1) and the inner hole of oil cylinder (2) are in the unlocked state, oblique at the top of voussoir (4)
Cylindrical surface (402) and straight cylindrical surfaces (403) are located in the slideway by liquid lock cylinder (5), and the slideway is by straight cylinder cambered surface
(501) and oblique circular cylinder cambered surface (502) composition；In the locked condition, the oblique circular cylinder face (402) at the top of voussoir (4) and liquid lock cylinder
(5) oblique circular cylinder cambered surface (502) contact being uniformly distributed along the circumference in hole.
Energizing spring nail pressing (14) compressible spring (9) generates pretightning force, and pretightning force is acted on by spring gasket ring (10)
It bores on disk (11) and conical ring (12), makes male cone (strobilus masculinus) (1201), the cone disk of the internal taper hole (1101) for boring disk (11) and conical ring (12)
(11) inner hole (102) of outer circle (1102) and piston component (1) keeps being in close contact, to keep oil circuit unimpeded, in cover of wedge (3)
Right end offer the cover of wedge notch (305) being uniformly distributed along the circumference at three.
Uniform force when in order to make locking, the voussoir (4) is distributed along piston component (1) circumference array, in order to guarantee
The unlock of primary lock mechanism is reliable, and the lock corner of voussoir (4) and cover of wedge (3) is designed as 10 degree, in order to guarantee synchronous retaining mechanism lock
Tight reliable, the lock corner of conical ring (12) and cone disk (11) is designed as 5 degree.
In order to eliminate gap, locking rigidity is improved, conical ring (12) and cone disk (11) are in locking state, always by spring
(9) it compresses, for the ease of installation, conical ring (12) uses two halves butted structure, for uniform force and convenient for assembly, cone disk
(11) table chain structure is used.
In locking, hydraulic oil is entered by liquid lock cylinder oil circuit mouth (503) on liquid lock cylinder (5), is pushed piston component (1)
It moves right, hydraulic oil can cross the gap of component and the cover of wedge notch (305) of cover of wedge (3) simultaneously, be applied to unlock piston major part
Left side (1305), to push unlock piston (13) to move right, until unlocking the right side (1304) of piston (13) and living
The interior hole end surface (104) of plug assembly (1) contacts, and the left side (801) of plunger piston locking (8) is acted on by the pressure of hydraulic oil, pushes away
Dynamic cover of wedge (3) and the spring gasket ring (10) being mounted on cover of wedge (3), cone disk (11) and conical ring (12) move right together, when
When piston component (1) moves right, the lower inclined plane (401) of voussoir (4) is made voussoir by the effect on the inclined-plane (301) of cover of wedge (3)
(4) it moves radially outwards, and then the oblique circular cylinder face (402) of voussoir (4) is made to enter the oblique circular cylinder cambered surface (502) that liquid locks cylinder (5)
And be fitted close therewith, at this point, foring primary lock mechanism by voussoir (4), cover of wedge (3), liquid lock cylinder (5) and piston component (1)
Locking state, at the same time, the cone disk (11) for being installed on cover of wedge (3) front end and conical ring (12) are due to pre- by spring (9) always
The effect of clamp force causes the internal taper hole (1101) for boring disk (11) and the male cone (strobilus masculinus) (1201) of conical ring (12) to keep being in close contact, cone
Disk outer circle (1102) also keeps tight in sealing contact with piston component inner hole (102), in this state, by carving set (3), spring pressure
Nail (14), spring (9), spring gasket ring (10), conical ring (12), cone disk (11) and piston component inner hole (102) form synchrolock
The locking state of tight mechanism, after synchronous retaining mechanism locking, it can be ensured that primary lock mechanism closes the feelings that pressure disappears in hydraulic oil
It will not be loosened under condition.
In locking action, since plunger piston locking (8) moves right, cause the left side (801) of plunger piston locking (8) and poor
The right side (701) of piston (7) disengages, and hydraulic oil passes through the center oil-through-hole (702) of differential piston (7), is applied to
The left side annular surface (703) of differential piston (7), since left side annular surface (703) area of differential piston (7) is greater than differential piston
(7) right side (701) area, causes differential piston (7) to move right, and is seen by the peep hole (601) of helmet (6) from outside
The motion state of differential piston (7) is examined, thus know in-house motion state, the atmosphere through slot opened up on helmet (6)
(602) for the right circular face of differential piston (7) to be communicated with the atmosphere, it is ensured that differential piston (7) can work normally, in order to protect
Indication mechanism reliable in action is demonstrate,proved, the annulus area of differential piston (7) is designed to twice of about end area.
In unlock, hydraulic oil is entered by the side door oil circuit mouth (1601) of side door (16), acts on piston component (1)
Right annular surface, hydraulic oil act on the right side (1304) of unlock piston (13) by the oil hole (103) of piston component (1),
Since right side (1304) area of unlock piston (13) is larger, biggish releasing force can produce, unlock the right end of piston (13)
Face (1304) is moved to the left under oil pressure active force, until the major part left side (1305) of unlock piston (13) and cone disk (11)
Right side (1103) contact, and cone disk (11) is pushed to move to left, cone disk (11) can make the internal taper hole (1101) for boring disk (11) after moving to left
It is disengaged with the male cone (strobilus masculinus) (1201) of conical ring (12), so that the locking state of synchronous retaining mechanism is destroyed, synchronous retaining mechanism
After unlock, unlock piston (13) continues to be moved to the left, and pushes cover of wedge (3) and the spring gasket ring (10) being mounted on cover of wedge (3), cone
Ring (12), cone disk (11) are moved to the left together, and while cover of wedge (3) moves to left, piston component (1) also can Xiang Zuoyi by oil pressure effect
Dynamic, voussoir (4) is moved to the left with piston component (1), causes the oblique circular cylinder face (402) of voussoir (4) by the oblique circular cylinder of liquid lock cylinder (5)
The constraint of cambered surface (502) can promote voussoir (4) while moving downward radially to central reduction, until the oblique circle of voussoir (4)
Cylinder (402) is completely disengaged with the oblique circular cylinder cambered surface (502) of liquid lock cylinder (5) and is contacted, and the straight cylindrical surfaces (403) of cover of wedge (4) enter
Liquid is locked in cylinder straight cylinder cambered surface (501), and primary lock mechanism has been completely in unlocked state at this time, and continuing to move to left makes plunger piston locking
(8) left side (801) contacts with the right side (701) of differential piston (7) and differential piston (7) is pushed to move to left, differential piston
(7) prominent end face about 20mm, at this point, preventer is in full open position.
The beneficial effects of the present invention are: 1. which has a compact structure and a reasonable designs, locking and unlock be not by hydraulic oil condition and other
The influence of factor.2. synchronous retaining mechanism is synchronous to lock in the locking of primary lock mechanism, keep locking more reliable.3. passing through shield
The peep hole of cap is from the motion state of external observation differential piston, to know the working condition of locking device.4. coupling mechanism force by
Minor diameter plunger piston locking provides, and can reduce component wear, and releasing force is provided by major diameter unlock piston, it is easier to be unlocked.
Detailed description of the invention
Fig. 1 is schematic cross-sectional view of the present invention in solution lock-bit；
Fig. 2 is the schematic cross-sectional view in locking position of Fig. 1；
Fig. 3 is decomposition texture schematic diagram of the invention；
Fig. 4 is the schematic perspective view of inventive piston component (1)；
Fig. 5 is the half section structure diagram of Fig. 4；
Fig. 6 is the schematic perspective view of oil cylinder of the present invention (2)；
Fig. 7 is the schematic perspective view of cover of wedge of the present invention (3)；
Fig. 8 is the another side schematic perspective view of Fig. 7；
Fig. 9 is the schematic perspective view of voussoir of the present invention (4)；
Figure 10 is the another side schematic perspective view of Fig. 9；
Figure 11 is the schematic perspective view of liquid lock cylinder (5) of the present invention；
Figure 12 is the schematic perspective view of helmet of the present invention (6)；
Figure 13 is the schematic perspective view of differential piston of the present invention (7)；
Figure 14 is the another side schematic perspective view of Figure 13；
Figure 15 is the schematic perspective view of plunger piston locking of the present invention (8)；
Figure 16 is the another side schematic perspective view of Figure 15；
Figure 17 is the schematic perspective view of spring of the present invention (9)；
Figure 18 is the schematic perspective view of spring gasket ring (10) of the present invention；
Figure 19 is the schematic perspective view of present invention cone disk (11)；
Figure 20 is the another side schematic perspective view of Figure 19；
Figure 21 is the schematic perspective view of conical ring of the present invention (12)；
Figure 22 is the another side schematic perspective view of Figure 21；
Figure 23 is the schematic perspective view of present invention unlock piston (13)；
Figure 24 is the another side schematic perspective view of Figure 23；
Figure 25 is the schematic perspective view of spring pressed stud of the present invention (14)；
Figure 26 is the another side schematic perspective view of Figure 25；
Figure 27 is the schematic perspective view of cylinder cap of the present invention (15)；
Figure 28 is the another side schematic perspective view of Figure 27.
In figure: piston component 1, square hole 101, inner hole 102, oil hole 103, interior hole end surface 104, oil cylinder 2, cover of wedge 3, inclined-plane
301, sets of holes 302, spring storehouse hole 303, annular ditch groove 304, notch 305, voussoir 4, lower inclined plane 401, oblique circular cylinder face 402, straight circle
Cylinder 403, liquid lock cylinder 5, straight cylinder cambered surface 501, oblique circular cylinder cambered surface 502, and liquid locks cylinder helmet 6, peep hole 601, atmosphere through slot
602, differential piston 7, right side 701, center oil-through-hole 702, left side annular surface 703, plunger piston locking 8, left side 801, spring
9, spring gasket ring 10, cone disk 11, internal taper hole 1101, outer circle 1102, right side 1103, conical ring 12, male cone (strobilus masculinus) 1201, inner hole flange
1202, piston 13, major part cylindrical surface 1301, microcephaly cylindrical surface 1302, inner hole 1303, right side 1304, major part left side are unlocked
1305, spring pressed stud 14, cylinder cap 15, side door 16, stay bolt 17.
Specific embodiment
Invention is described in detail with reference to the accompanying drawing.
The locking device is made of primary lock mechanism with synchronous retaining mechanism, and the primary lock mechanism includes piston group
Part 1, cover of wedge 3, voussoir 4, liquid lock cylinder 5, and voussoir 4 is assemblied in the square hole 101 of 1 front of piston component, the lower inclined plane 401 of voussoir 4
It fitting with the inclined-plane 301 of cover of wedge 3, cover of wedge 3 and voussoir 4 are designed using the biggish angle of wedge, and voussoir 4 is axially moved with piston 1,
It is moved forward and backward the top of voussoir 4 in the slideway of liquid lock cylinder 5.In the front end of primary lock mechanism, it is provided with and is pre-tightened by spring 9
The synchronous retaining mechanism that conical ring 12 and cone disk 11 are constituted, to ensure overall mechanism reliable lock, conical ring 12 and cone disk 11 using compared with
Small angle of wedge design.The locking action of retaining mechanism is completed by minor diameter plunger piston locking 8, and component wear can be greatly reduced, mention
High service life.It is completed when unlock by major diameter unlock piston 13, is difficult to the problem of unlocking after further avoiding locking.In liquid
The end of lock cylinder 5 is equipped with the indication mechanism that is made of differential piston 7, helmet 6 and cylinder cap 15, can work from external observation to mechanism
Make state.
The left end of piston component 1 is a hollow cylindrical configuration, is uniformly distributed along the circumference and offers in the front of hollow cylindrical configuration
Three square holes 101, three voussoirs 4 are assemblied in respectively in square hole 101, make the lower inclined planes 4 of three 4 bottoms of voussoir respectively with cover of wedge 3
Inclined-plane 301 at uniformly distributed three is gone up to contact.Position staggered with inclined-plane 301 is opened up there are three spring storehouse hole 303 in cover of wedge 3,
The pre-tightening mechanism being made of spring pressed stud 14 and spring 9 is installed in spring storehouse hole 303 respectively.Successively pacify at the rear portion of cover of wedge 3
Equipped with spring gasket ring 10, cone disk 11, conical ring 12 and unlock piston 13, spring gasket ring 10 is located between spring 9 and cone disk 11, cone
Ring 12 is installed in inside cone disk 11, and the inner hole flange 1202 of conical ring 12 is installed in the annular ditch groove 304 of cover of wedge 3, unlocks piston
13 piston rod is set in the cover of wedge hole 302 of cover of wedge 3, is equipped with plunger piston locking 8, locking post through screw in the end of cover of wedge 3
The plunger rod of plug 8 is inserted into the piston rod of unlock piston 13.
Be placed in the hollow cylindrical configuration of piston component 1 by carve set 3, spring pressed stud 14, spring 9, spring gasket ring 10,
Conical ring 12, cone disk 11 and the synchronous retaining mechanism for unlocking the formation of piston 13, piston component 1 is together in 1 hollow sleeve of piston component
Synchronization retaining mechanism be placed in by cylinder cap 15, liquid lock cylinder 5 and the cavity that connects and composes of oil cylinder 2, the cylinder cap 15 is through bolt
It being connected and fixed with liquid lock cylinder 5, is equipped with side door 16 at the rear portion of oil cylinder 2, liquid lock cylinder 5 is locked through stay bolt 17 and side door 16,
Differential piston 7 is installed between helmet 6 and cylinder cap 15, and helmet 6 is connected and fixed through bolt and cylinder cap 15, in 6 circumferencial direction of helmet
Peep hole 601 is offered, 6 lower part of helmet offers atmosphere through slot 602.
The major diameter of piston component 1 and the inner hole of oil cylinder 2, in the unlocked state, the oblique circular cylinder face 402 at 4 top of voussoir
It is located in the slideway by liquid lock cylinder 5 with straight cylindrical surfaces 403, the slideway is by straight cylinder cambered surface 501 and oblique circular cylinder cambered surface 502
Composition.In the locked condition, the oblique circular cylinder face 402 at 4 top of voussoir and liquid lock the oblique circular cylinder cambered surface being uniformly distributed along the circumference in 5 hole of cylinder
502 contacts.
14 compressible spring 9 of energizing spring nail pressing generates pretightning force, and pretightning force acts on cone disk 11 by spring gasket ring 10
On conical ring 12, makes the male cone (strobilus masculinus) 1201 of the internal taper hole 1101 for boring disk 11 and conical ring 12, bores the outer circle 1102 and piston group of disk 11
The inner hole 102 of part 1 keeps being in close contact, and to keep oil circuit unimpeded, the wedge being uniformly distributed along the circumference at three is offered in the right end of cover of wedge 3
Cover notch 305.
Uniform force when in order to make locking, the voussoir 4 are distributed along 1 circumference array of piston component.In order to guarantee main lock
Tight mechanism unlock is reliable, and the lock corner of voussoir 4 and cover of wedge 3 is designed as 10 degree.In order to guarantee synchronous retaining mechanism reliable lock, cone
The lock corner of ring 12 and cone disk 11 is designed as 5 degree.
In order to eliminate gap, locking rigidity is improved, conical ring 12 and cone disk 11 are compressed by spring 9 always in locking state.
For the ease of installation, conical ring 12 uses two halves butted structure.For uniform force and convenient for assembly, cone disk 11 uses watch chain
Shape structure.
The present invention in the unlocked state (as shown in Figure 1), lock cylinder oil circuit mouth 503 by the liquid that liquid locks cylinder 5 and enter by hydraulic oil,
Piston component 1 is pushed to move right, hydraulic oil passes through the cover of wedge notch 305 of component spacings and cover of wedge 3 simultaneously, is applied to unlock and lives
Plug 13 major part left side 1305, thus push unlock piston 13 move right, until unlock piston 13 right side 1304 with
The interior hole end surface 104 of piston component 1 contacts, and unlocks piston 13 at this time and only serves booster action.Due to the left side of plunger piston locking 8
801 are also acted on by hydraulic fluid pressure, spring gasket ring 10, the cone disk that plunger piston locking 8 will push cover of wedge 3 and be mounted on cover of wedge 3
11 and conical ring 12 move right together, the right side 701 of the left side 801 of plunger piston locking 8 and differential piston 7 is detached from and connects at this time
Touching, hydraulic oil are applied to annular surface 703 on the left of differential piston, because of differential piston 7 by differential piston center oil-through-hole 702
Annular surface 703 area in left side is greater than 701 area of right side of differential piston 7, causes differential piston 7 that can move right, passes through shield
The peep hole 601 of cap 6 is from the motion state of external observation differential piston 7, to reflect the internal motion shape of mechanism indirectly
State, the atmosphere through slot 602 opened up on helmet 6 is for being communicated with the atmosphere the right circular face of differential piston 7, it is ensured that differential piston
7 can work normally, and in order to guarantee indication mechanism reliable in action, the annulus area of differential piston (7) is designed to about end area
Twice.When piston component 1 does not move to stroke end locking position, the straight cylindrical surfaces 403 of voussoir 4 lock 5 straight cylinder of cylinder in liquid
Movement in cambered surface 501, when moving to stroke end locking position, as shown in Fig. 2, the lower inclined plane 401 of voussoir 4 is by the oblique of cover of wedge 3
The effect in face 301, voussoir 4 can move radially outwards, and the oblique circular cylinder face 402 of voussoir 4 enters the oblique circular cylinder cambered surface of liquid lock cylinder 5
It 502 and is fitted close therewith, at this point, the locking of the primary lock mechanism formed by voussoir 4, cover of wedge 3, liquid lock cylinder 5 and piston component 1
State, at the same time, the cone disk 11 and conical ring 12 for being installed on 3 front end of cover of wedge due to by the effect of 9 pretightning force of spring, causing always
It bores disk internal taper hole 1101 and conical ring male cone (strobilus masculinus) 1201 keeps being in close contact, cone disk outer circle 1102 is also protected with piston component inner hole 102
Hold it is tight in sealing contact, in this state, by carve set 3, spring pressed stud 14, spring 9, spring gasket ring 10, conical ring 12, cone disk 11 with
Piston component inner hole 102 forms the locking state of synchronous retaining mechanism, and synchronous retaining mechanism can using lesser lock corner energy
It is locked by ground, after synchronous retaining mechanism locking, it can be ensured that primary lock mechanism closes in the case that pressure disappears also not in hydraulic oil
It can loosen.Its mechanism of action is: after closing hydraulic disappearance, the reaction force acts from ram block sealing element and well pressure
On piston component 1, it is made to have the tendency that being moved to the left, this active force is transferred to liquid by the oblique circular cylinder face 402 of voussoir and locks cylinder 5
Oblique circular cylinder cambered surface 502, while generating normal pressure on the inclined-plane 301 of the lower inclined plane of voussoir 4 401 and cover of wedge 3, this power makes cover of wedge 3
Have the tendency that moving to left, when the oblique angle on the inclined-plane of cover of wedge 3 301 is less than angle of friction, primary lock mechanism can be self-locking, when oblique angle is greater than mill
When wiping angle, primary lock mechanism can be loosened, and since angle of friction is related to coefficient of friction, and coefficient of friction is coarse by component surface
The influence of the factors such as degree, hydraulic oil condition, is not an exact numerical value, and consequence is exactly that will cause retaining mechanism
It is unreliable, and the setting for synchronizing retaining mechanism can eliminate influence caused by this unfavorable factor, synchronous retaining mechanism locking
After prevent cover of wedge 3 relative to piston component 1 from axially moving to left, cover of wedge 3, which cannot move to left, also to be ensured that by voussoir 4, cover of wedge 3, liquid
The primary lock mechanism that lock cylinder 5 and piston component 1 form can be locked reliably in locking position.
In the locked condition (as shown in Figure 2), hydraulic oil passes through the side door oil circuit mouth 1601 of side door 16 to the present invention, acts on
The right annular surface of piston component 1 acts on unlock piston right side 1304 also by the oil hole 103 of piston component 1, due to solution
1304 area of right side for locking piston 13 is larger, can produce biggish releasing force, to guarantee the reliable life of unlock.Unlock piston
Right side 1304 under oil pressure effect, unlock piston 13 can move to left, until unlock piston major part left side 1305 and cone disk are right
End face 1103 contacts and cone disk 11 is pushed to move to left, and cone disk 11 makes to bore disk internal taper hole 1101 after moving to left and conical ring male cone (strobilus masculinus) 1201 is detached from
Contact, to destroy the locking state of synchronous retaining mechanism, after synchronous retaining mechanism unlock, unlock piston 13, which continues to move to left, to be pushed away
Dynamic cover of wedge 3 and the spring gasket ring 10 being mounted on cover of wedge 3, cone disk 11 and conical ring 12 move to left together, while cover of wedge 3 moves to left,
Piston component 1 by oil pressure effect can also move to left, voussoir 4 is moved to the left with piston component 1, cause the oblique circular cylinder face 402 of voussoir 4 by
Liquid locks the constraint of the oblique circular cylinder cambered surface 502 of cylinder 5, can promote voussoir 4 while moving downward radially to central reduction, until wedge
The oblique circular cylinder face 402 of block 4 completely disengages with the oblique circular cylinder cambered surface 502 of liquid lock cylinder 5 and contacts, and the straight cylindrical surfaces 403 of cover of wedge 4 enter liquid
It locks in cylinder straight cylinder cambered surface 501, primary lock mechanism has been completely in unlocked state at this time, continues to move to left the left side for making plunger piston locking 8
End face 801 contacts with the right side 701 of differential piston 7 and differential piston 7 is pushed to move to left, the prominent end face about 20mm of differential piston 7,
Preventer is in full open position (as shown in Figure 1) at this time.
Claims (10)
1. a kind of Ram Preventer Hydraulic Locking Device, it is characterised in that: the locking device is by primary lock mechanism and synchronous locking
Mechanism is constituted, and the primary lock mechanism includes piston component (1), cover of wedge (3), voussoir (4), liquid lock cylinder (5), voussoir (4) dress
In square hole (101) assigned in piston component (1) front, the lower inclined plane (401) of voussoir (4) is affixed with the inclined-plane (301) of cover of wedge (3)
It closes, cover of wedge (3) and voussoir (4) are designed using the biggish angle of wedge, and voussoir (4) is axially moved with piston (1), make voussoir (4)
Top is moved forward and backward in the slideway of liquid lock cylinder (5), in the front end of primary lock mechanism, is provided with the conical ring pre-tightened by spring (9)
(12) the synchronous retaining mechanism constituted with cone disk (11), to ensure overall mechanism reliable lock, conical ring (12) is adopted with cone disk (11)
It is designed with the lesser angle of wedge, the locking action of retaining mechanism is completed by minor diameter plunger piston locking (8), and when unlock is unlocked by major diameter
Piston (13) is completed, and the display machine being made of differential piston (7), helmet (6) and cylinder cap (15) is equipped in the end of liquid lock cylinder (5)
Structure, can working condition from external observation to mechanism.
2. a kind of Ram Preventer Hydraulic Locking Device according to claim 1, it is characterised in that: in piston component (1)
Front be uniformly distributed along the circumference and open up there are three square hole (101), three voussoirs (4) are assemblied in respectively in square hole (101), make three wedges
The lower inclined plane (4) of block (4) bottom is contacted with inclined-plane (301) on cover of wedge (3) uniformly distributed three respectively, in cover of wedge (3) and inclined-plane
(301) staggered position is opened up there are three spring storehouse hole (303), is installed with respectively in spring storehouse hole (303) by spring pressed stud
(14) and spring (9) constitute pre-tightening mechanism, the rear portion of cover of wedge (3) be sequentially installed with spring gasket ring (10), cone disk (11), cone
Ring (12) and unlock piston (13), spring gasket ring (10) are located between spring (9) and cone disk (11), and conical ring (12) is installed in cone
Disk (11) is internal, and the inner hole flange (1202) of conical ring (12) is installed in the annular ditch groove (304) of cover of wedge (3), unlocks piston
(13) piston rod is set in the cover of wedge hole (302) of cover of wedge (3), is equipped with plunger piston locking through screw in the end of cover of wedge (3)
(8), the plunger rod of plunger piston locking (8) is inserted into the piston rod of unlock piston (13).
3. a kind of Ram Preventer Hydraulic Locking Device according to claim 2, it is characterised in that: the piston component
(1) left end is a hollow cylindrical configuration, by carving set (3), spring pressed stud (14), spring (9), spring gasket ring (10), conical ring
(12), cone disk (11) is placed in the hollow cylindrical configuration of piston component (1) with the synchronous retaining mechanism that piston (13) are formed is unlocked,
Piston component (1) together with the synchronization retaining mechanism in piston component (1) hollow sleeve be placed in by cylinder cap (15), liquid lock cylinder (5) and
In the cavity that oil cylinder (2) connects and composes, the cylinder cap (15) is connected and fixed through bolt and liquid lock cylinder (5), after oil cylinder (2)
Portion is equipped with side door (16), and liquid lock cylinder (5) is locked through stay bolt (17) and side door (16), and differential piston (7) is installed on helmet
(6) between cylinder cap (15), helmet (6) is connected and fixed through bolt and cylinder cap (15), and in helmet (6), circumferencial direction offers observation
Hole (601), its underpart offer atmosphere through slot (602).
4. a kind of Ram Preventer Hydraulic Locking Device according to claim 3, it is characterised in that: the piston component
(1) inner hole of major diameter and oil cylinder (2), in the unlocked state, oblique circular cylinder face (402) and straight cylinder at the top of voussoir (4)
Face (403) is located in the slideway by liquid lock cylinder (5), and the slideway is by straight cylinder cambered surface (501) and oblique circular cylinder cambered surface (502)
Composition；In the locked condition, the oblique circular cylinder face (402) at the top of voussoir (4) and liquid lock the oblique circle being uniformly distributed along the circumference in cylinder (5) hole
Column cambered surface (502) contact.
5. a kind of Ram Preventer Hydraulic Locking Device according to claim 2, it is characterised in that: energizing spring nail pressing
(14) compressible spring (9) generates pretightning force, and pretightning force is acted on cone disk (11) and conical ring (12) by spring gasket ring (10),
Make the male cone (strobilus masculinus) (1201) of the internal taper hole (1101) for boring disk (11) and conical ring (12), bore the outer circle (1102) and piston group of disk (11)
The inner hole (102) of part (1) keeps being in close contact, and to keep oil circuit unimpeded, offers in the right end of cover of wedge (3) circumferentially equal at three
The cover of wedge notch (305) of cloth.
6. a kind of Ram Preventer Hydraulic Locking Device according to claim 2, it is characterised in that: in order to make locking when by
Power is uniform, and the voussoir (4) is distributed along piston component (1) circumference array, in order to guarantee that the unlock of primary lock mechanism is reliable, voussoir
(4) 10 degree are designed as with the lock corner of cover of wedge (3), in order to guarantee synchronous retaining mechanism reliable lock, conical ring (12) and cone disk
(11) lock corner is designed as 5 degree.
7. a kind of Ram Preventer Hydraulic Locking Device according to claim 6, it is characterised in that: in order to eliminate gap,
Locking rigidity is improved, conical ring (12) and cone disk (11) are compressed by spring (9) always in locking state, for the ease of installation, cone
Ring (12) uses two halves butted structure, and for uniform force and convenient for assembly, cone disk (11) uses table chain structure.
8. a kind of Ram Preventer Hydraulic Locking Device according to claim 4, it is characterised in that: hydraulic in locking
Oil is entered by liquid lock cylinder oil circuit mouth (503) on liquid lock cylinder (5), pushes piston component (1) to move right, hydraulic oil meeting simultaneously
The gap of component and the cover of wedge notch (305) of cover of wedge (3) are crossed, unlock piston major part left side (1305) is applied to, to push
Unlock piston (13) moves right, until the interior hole end surface of the right side (1304) of unlock piston (13) and piston component (1)
(104) it contacts, the left side (801) of plunger piston locking (8) is acted on by the pressure of hydraulic oil, is pushed cover of wedge (3) and is mounted on wedge
Spring gasket ring (10), cone disk (11) and conical ring (12) on set (3) move right together, when piston component (1) moves right
When, the lower inclined plane (401) of voussoir (4) moves radially outwards voussoir (4) by the effect on the inclined-plane (301) of cover of wedge (3), into
And so that the oblique circular cylinder face (402) of voussoir (4) is entered the oblique circular cylinder cambered surface (502) of liquid lock cylinder (5) and be fitted close therewith, at this point,
The locking state of primary lock mechanism is formd by voussoir (4), cover of wedge (3), liquid lock cylinder (5) and piston component (1), at the same time,
The cone disk (11) for being installed on cover of wedge (3) front end and conical ring (12) are due to by the effect of spring (9) pretightning force, causing cone disk always
(11) male cone (strobilus masculinus) (1201) of internal taper hole (1101) and conical ring (12) keeps being in close contact, cone disk outer circle (1102) and piston group
Part inner hole (102) also keeps tight in sealing contact, in this state, by carving set (3), spring pressed stud (14), spring (9), spring
Gasket ring (10), conical ring (12), cone disk (11) form the locking state of synchronous retaining mechanism with piston component inner hole (102), together
After walking retaining mechanism locking, it can be ensured that primary lock mechanism is closed in the case that pressure disappears in hydraulic oil and will not be loosened.
9. a kind of Ram Preventer Hydraulic Locking Device according to claim 8, it is characterised in that: in locking action,
Since plunger piston locking (8) moves right, cause the left side (801) of plunger piston locking (8) and the right side of differential piston (7)
(701) it disengages, hydraulic oil passes through the center oil-through-hole (702) of differential piston (7), is applied to the left side of differential piston (7)
Annular surface (703), since left side annular surface (703) area of differential piston (7) is greater than the right side (701) of differential piston (7)
Area causes differential piston (7) to move right, by the peep holes (601) of helmet (6) from external observation differential piston (7)
Motion state, to know in-house motion state, the atmosphere through slot (602) opened up on helmet (6) is for making differential work
The right circular face of plug (7) is communicated with the atmosphere, it is ensured that differential piston (7) can work normally, in order to guarantee that indication mechanism movement can
It leans on, the annulus area of differential piston (7) is designed to twice of about end area.
10. a kind of Ram Preventer Hydraulic Locking Device according to claim 4, it is characterised in that: hydraulic in unlock
Oil is entered by the side door oil circuit mouth (1601) of side door (16), acts on the right annular surface of piston component (1), hydraulic oil passes through work
The oil hole (103) of plug assembly (1) acts on the right side (1304) of unlock piston (13), due to unlocking the right end of piston (13)
Face (1304) area is larger, can produce biggish releasing force, unlocks the right side (1304) of piston (13) under oil pressure active force
It is moved to the left, until the major part left side (1305) of unlock piston (13) is contacted with the right side (1103) of cone disk (11), and pushes away
Mantle disk (11) moves to left, and cone disk (11) can make to bore the internal taper hole (1101) of disk (11) and the male cone (strobilus masculinus) of conical ring (12) after moving to left
(1201) it disengages, to destroy the locking state of synchronous retaining mechanism, after synchronous retaining mechanism unlock, unlocks piston (13)
Continue to be moved to the left, pushes cover of wedge (3) and the spring gasket ring (10) being mounted on cover of wedge (3), conical ring (12), cone disk (11) together
It is moved to the left, while cover of wedge (3) moves to left, piston component (1) can be also moved to the left by oil pressure effect, and voussoir (4) is with piston group
Part (1) is moved to the left, and causes the oblique circular cylinder face (402) of voussoir (4) by the constraint of the oblique circular cylinder cambered surface (502) of liquid lock cylinder (5), meeting
Promote voussoir (4) while moving downward radially to central reduction, until the oblique circular cylinder face (402) of voussoir (4) and liquid lock cylinder
(5) oblique circular cylinder cambered surface (502) completely disengages contact, and the straight cylindrical surfaces (403) of cover of wedge (4) enter liquid and lock cylinder straight cylinder cambered surface
(501) in, primary lock mechanism has been completely in unlocked state at this time, continue to move to left the left side (801) for making plunger piston locking (8) with
The right side (701) of differential piston (7) contacts and differential piston (7) is pushed to move to left, the prominent end face about 20mm of differential piston (7),
At this point, preventer is in full open position.
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| CN201910680317.7A CN110284851B (en) | 2019-07-26 | 2019-07-26 | Hydraulic locking device of ram blowout preventer |
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| CN201910680317.7A CN110284851B (en) | 2019-07-26 | 2019-07-26 | Hydraulic locking device of ram blowout preventer |
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Cited By (4)
| 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 |
| CN113397654A (en) * | 2021-05-06 | 2021-09-17 | 武汉联影智融医疗科技有限公司 | Synchronous locking structure, minimally invasive surgical instrument and control method of minimally invasive surgical instrument |
| CN114396241A (en) * | 2022-03-28 | 2022-04-26 | 四川新为橡塑有限公司 | Double-layer sealed spherical rubber core and annular blowout preventer |
| CN116838284A (en) * | 2023-09-01 | 2023-10-03 | 河北新铁虎石油机械有限公司 | Hydraulic locking device of ram blowout preventer with elastic locking and double-stage oil cylinder unlocking functions |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5575452A (en) * | 1995-09-01 | 1996-11-19 | Varco Shaffer, Inc. | Blowout preventer with ram wedge locks |
| CN2246706Y (en) * | 1994-05-06 | 1997-02-05 | 华北石油管理局第二机械厂 | Hydraulic automatic locking device for ram of blow-out preventer |
| US5918851A (en) * | 1998-03-03 | 1999-07-06 | Cooper Cameron Corporation | Blowout preventer ram automatic locking system |
| CN2799847Y (en) * | 2005-01-10 | 2006-07-26 | 河北华北石油荣盛机械制造有限公司 | Automatic locking device for ram preventer |
| CN200952376Y (en) * | 2006-10-16 | 2007-09-26 | 上海神开石油化工装备集团有限公司 | Automatic hydraulic locking device of flashboard blow-out preventer for petroleum and natural gas drilling |
| CN101111660A (en) * | 2005-02-01 | 2008-01-23 | 瓦克I/P公司 | Blowout preventer and locking mechanism |
| CN101675213A (en) * | 2007-02-16 | 2010-03-17 | 海德里尔美国制造业有限责任公司 | Ram bop position sensor |
| CN101672171A (en) * | 2009-06-19 | 2010-03-17 | 江苏信得石油机械有限公司 | Novel blowout preventer hydraulic locking device |
| CN104847297A (en) * | 2015-04-30 | 2015-08-19 | 顾军锋 | Flashboard locking state display device of blowout preventer |
| CN204663459U (en) * | 2015-04-13 | 2015-09-23 | 河北博路天宝石油设备制造有限公司 | A kind of hydraulic pressure self-locking mechanism of preventer |
| CN108457611A (en) * | 2018-04-02 | 2018-08-28 | 江苏信得石油机械股份有限公司 | A kind of synchronous mode rest shoe side door retaining mechanism |
| CN210460571U (en) * | 2019-07-26 | 2020-05-05 | 唐建华 | Hydraulic locking device of ram blowout preventer |
-
2019
- 2019-07-26 CN CN201910680317.7A patent/CN110284851B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2246706Y (en) * | 1994-05-06 | 1997-02-05 | 华北石油管理局第二机械厂 | Hydraulic automatic locking device for ram of blow-out preventer |
| US5575452A (en) * | 1995-09-01 | 1996-11-19 | Varco Shaffer, Inc. | Blowout preventer with ram wedge locks |
| US5918851A (en) * | 1998-03-03 | 1999-07-06 | Cooper Cameron Corporation | Blowout preventer ram automatic locking system |
| CN2799847Y (en) * | 2005-01-10 | 2006-07-26 | 河北华北石油荣盛机械制造有限公司 | Automatic locking device for ram preventer |
| CN101111660A (en) * | 2005-02-01 | 2008-01-23 | 瓦克I/P公司 | Blowout preventer and locking mechanism |
| CN200952376Y (en) * | 2006-10-16 | 2007-09-26 | 上海神开石油化工装备集团有限公司 | Automatic hydraulic locking device of flashboard blow-out preventer for petroleum and natural gas drilling |
| CN101675213A (en) * | 2007-02-16 | 2010-03-17 | 海德里尔美国制造业有限责任公司 | Ram bop position sensor |
| CN101672171A (en) * | 2009-06-19 | 2010-03-17 | 江苏信得石油机械有限公司 | Novel blowout preventer hydraulic locking device |
| CN204663459U (en) * | 2015-04-13 | 2015-09-23 | 河北博路天宝石油设备制造有限公司 | A kind of hydraulic pressure self-locking mechanism of preventer |
| CN104847297A (en) * | 2015-04-30 | 2015-08-19 | 顾军锋 | Flashboard locking state display device of blowout preventer |
| CN108457611A (en) * | 2018-04-02 | 2018-08-28 | 江苏信得石油机械股份有限公司 | A kind of synchronous mode rest shoe side door retaining mechanism |
| CN210460571U (en) * | 2019-07-26 | 2020-05-05 | 唐建华 | Hydraulic locking device of ram blowout preventer |
Cited By (6)
| 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 |
| CN113397654A (en) * | 2021-05-06 | 2021-09-17 | 武汉联影智融医疗科技有限公司 | Synchronous locking structure, minimally invasive surgical instrument and control method of minimally invasive surgical instrument |
| CN113397654B (en) * | 2021-05-06 | 2022-04-26 | 武汉联影智融医疗科技有限公司 | Synchronous locking structure, minimally invasive surgical instrument and control method of minimally invasive surgical instrument |
| CN114396241A (en) * | 2022-03-28 | 2022-04-26 | 四川新为橡塑有限公司 | Double-layer sealed spherical rubber core and annular blowout preventer |
| CN116838284A (en) * | 2023-09-01 | 2023-10-03 | 河北新铁虎石油机械有限公司 | Hydraulic locking device of ram blowout preventer with elastic locking and double-stage oil cylinder unlocking functions |
| CN116838284B (en) * | 2023-09-01 | 2023-11-07 | 河北新铁虎石油机械有限公司 | Hydraulic locking device of ram blowout preventer with elastic locking and double-stage oil cylinder unlocking functions |
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| CN110284851B (en) | 2024-07-02 |
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