CN106194097B - The flashboard locking device of preventer - Google Patents
The flashboard locking device of preventer Download PDFInfo
- Publication number
- CN106194097B CN106194097B CN201510214503.3A CN201510214503A CN106194097B CN 106194097 B CN106194097 B CN 106194097B CN 201510214503 A CN201510214503 A CN 201510214503A CN 106194097 B CN106194097 B CN 106194097B
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- Prior art keywords
- flashboard
- lock shaft
- locking
- preventer
- piston
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- 239000012530 fluid Substances 0.000 claims abstract description 57
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000008439 repair process Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 48
- 238000010586 diagram Methods 0.000 description 27
- 239000010720 hydraulic oil Substances 0.000 description 13
- 230000002265 prevention Effects 0.000 description 8
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 238000005553 drilling Methods 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance 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
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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)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Actuator (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The present invention provides a kind of flashboard locking devices of preventer, including flashboard, side door, flashboard axis, lock shaft and fluid cylinder, flashboard is mounted on side door inner end, flashboard axis is pierced by from side door and is connect with flashboard, fluid cylinder is mounted on the outer end of side door, the end sleeve of flashboard axis is equipped with first piston, first piston is matched with the inner cavity of fluid cylinder, so that flashboard axis moves axially in fluid cylinder, lock shaft, which can be partially disposed in inside flashboard axis, realizes relative motion, flashboard axis is internally provided with axial profiled holes, the lock shaft is equipped with the locking bar of N item axial directions, the two can be mutually matched fitting, profiled holes are radially equipped with the first spiral camber area, locking bar is radially equipped with the second spiral camber area, the two can be mutually matched.This invention simplifies structure and oil circuits, reduce the volume of locking device, have so that processing cost, labor intensity and failure rate reduce, locking efficiency, repairs the advantageous effect that convenience improves at reliability.
Description
Technical field
The device that the present invention relates to a kind of in the drilling of soil layer or rock for sealing or insulating wellbore or well, especially relates to
And a kind of flashboard locking device of preventer.
Background technology
During oil, gas drilling, formation fluid is once out of hand, it is possible to well kick occur or blowout is lost
Control, it is necessary to it is controlled using preventer, and ram preventer is essential one kind in preventer.Ram preventer is general
It is controlled using hydraulic oil, piston, flashboard axis and flashboard is pushed by the hydraulic oil in fluid cylinder, flashboard is made to be moved to well head center position
Until closing flashboard, achieve the purpose that shut-in well, effectively control well head pressure.After ram preventer shut-in well, if necessary to for a long time
The case where shunting in a well or prevent hydraulic failure flashboard from opening, must just be locked flashboard using flashboard locking device at its present position
Tightly, it prevents from moving out under the pressure that flashboard fluctuates in well, ensures the stability and reliability of preventer shut-in well.
Flashboard locking device is divided into manual locking device and the locking device that surges.
Manual locking device includes mainly that hydraulic pressure closes lock shaft follower structure, hub splines structure, hydraulic pressure closing locking
Axis not 3 class of follower structure.The most commonly used is the first kind and third class in reality, the second class is being locked on the basis of the first kind
Spline housing is increased inside axis, it is substantially identical as the first kind, but actually use less.The handling characteristics of three class formations are all profits
Manually rotation hand wheel relies on the self-locking between lock shaft trapezoidal thread pair to realize locking flashboard after driving tens circle of lock shaft rotation,
Unlock also needs equally to rotate backward the circle of handwheel tens.Although can achieve the purpose that locking, this three classes manual locking device
It is time-consuming, laborious, efficiency is low.And due to the variation of well site environment and temperature, thread contact face rust can be caused dead or occlusion, make lock
Tight and unlock is difficult, and flashboard is caused smoothly cannot to close and open.About the locking device that surges, publish within 2007《Petroleum ore
Field machinery》The 10th phase case study of page 1~4 of volume 36《Ram Preventer Hydraulic Locking Device present Research》With 2008
What July published《Oil drilling technology》The paper of the 4th phase of volume 36《Ram Preventer Hydraulic Locking Device present situation and development are ground
Study carefully》This two papers on the basis of analyzing domestic and international hydraulic locking apparatus present Research, describe in detail it is several not
With hydraulic locking apparatus design feature, but these hydraulic locking apparatus exist or it is complicated or bulky or
The shortcomings that high failure rate.
In addition, the flashboard of preventer surges, locking device has all been disclosed in many United States Patent (USP)s, including but unlimited
In Patent No. US3242826, US3470793, US3941141, US4052995, US4076208, US4290577,
US4293115、US4601232、US4969390、US4969627、US5025708、US5575452、US5918851、
Cited patent in the patent document of US7195224, US7798466, US8444109, US8857784 and these patent documents
Document and/or non-patent literature.
Invention content
The technical problem to be solved by the present invention is to manual in the flashboard locking device in order to overcome preventer in the prior art
Locking device and surge locking device the shortcomings that, a kind of flashboard locking device of preventer is provided, according to rotation lock mandrel mode
Difference, can both be used on manual locking device, and can also be used in and surge on locking device.
The present invention is to solve above-mentioned technical problem by following technical proposals：A kind of locking device of preventer, packet
Include flashboard, side door, flashboard axis, lock shaft and fluid cylinder, the flashboard is mounted on the side door inner end, and the flashboard axis is from the side
It is pierced by and connect with the flashboard in door, the fluid cylinder is mounted on the outer end of the side door, and the end sleeve of the flashboard axis is equipped with the
One piston, the first piston are matched with the inner cavity of the fluid cylinder so that the flashboard axis moves axially in the fluid cylinder, institute
The realization relative motion of flashboard axis inside can be partially disposed in by stating lock shaft, and feature is：
The flashboard axis is internally provided with axial profiled holes, and the lock shaft is equipped with the lock of N (N is natural number) item axial direction
Tight item, the two can be mutually matched fitting；
The profiled holes are radially equipped with the first spiral camber area, and the locking bar is radially equipped with the second helical curve
Face area, the two are mutually matched.
Preferably, first spiral camber area is the first spiral camber, or it is the first spiral camber group；
Second spiral camber area is the second spiral camber, or is the second spiral camber group；
The helix angle in first spiral camber area or the second spiral camber area is 0 ° -23 °.
Preferably, being equipped with the first spiral camber of multilayer area, locking bar shape on the lock shaft in the profiled holes
At the second spiral camber of multilayer area, the two accordingly matches.
Preferably, the abnormal shape bore ends have guiding circular hole, the locking shaft end to have guide cylinder.
Preferably, the locking bar male-female engagement mutual in the axial direction of the profiled holes of the flashboard axis and the lock shaft, institute
It is 1 ° of -90 ° of 25'43 " to state the semi-cone angle in profiled holes and locking bar.
Preferably, the flashboard locking device of the preventer further includes executing agency, the executing agency is arranged described
The other end of lock shaft, for driving the lock shaft to rotate.
Preferably, the executing agency includes locking fluid cylinder, one end of the lock shaft and the flashboard axis connection are described
The other end of lock shaft penetrates in the locking fluid cylinder, and the locking fluid cylinder is connect with the outer end of the fluid cylinder.
Preferably, the executing agency further includes second piston, third piston, the first rack, the second rack and turning gear
Wheel, the rotate gear are threaded through the other end of the lock shaft；
First rack and second rack are engaged in the upper and lower of the rotate gear, the second piston respectively
It is fixedly connected with first rack, the third piston is fixedly connected with second rack, and the second piston and institute
State the both sides that third piston is located at the rotate gear；
The lock shaft is equipped with keyway, and the rotate gear passes through key and the locking axis connection；
The executing agency is contained in the locking fluid cylinder.
Preferably, the executing agency further includes the 4th piston, the 5th piston, connecting rod and oscillating rod, the oscillating rod
Mounted on the other end of the lock shaft, and the oscillating rod passes through the connecting rod, the both ends of the connecting rod respectively with institute
The 4th piston is stated to be fixedly connected with the 5th piston；
The executing agency is contained in the locking fluid cylinder.
Preferably, the executing agency includes driving gear, driven gear and motor, the driven gear is threaded through described
The other end of lock shaft, the driving gear are connect by connecting shaft with the motor, the driven gear and the driving tooth
Wheel engagement.
The positive effect of the present invention is that：The flashboard locking device of preventer of the present invention can only need rotation lock mandrel
1/6 circle can be achieved with locking, and will be improved than traditional manual locking device if carrying out locking by the direct rotation lock mandrel of manpower
At least hundred times of efficiency significantly reduces labor intensity and improves locking efficiency；If revolved by hydraulic-driven executing agency
Twist lock mandrel is locked, then surging than tradition, locking device structure is simpler, volume is more small and exquisite, processing cost and failure rate
It is lower.
Description of the drawings
The above and other feature of the present invention, property and advantage will pass through description with reference to the accompanying drawings and examples
And become apparent, identical reference numeral always shows identical feature in the accompanying drawings, wherein：
Fig. 1 is the structural schematic diagram of the embodiment one of the flashboard locking device of preventer of the present invention.Fig. 2 is blowout prevention of the present invention
The assembling schematic diagram of flashboard axis and lock shaft in the embodiment one of the flashboard locking device of device.
Fig. 3 is the sectional view splitted along line A-A in Fig. 2.
Fig. 4 is the sectional view splitted along line B-B in Fig. 2.
The perspective that Fig. 5 coordinates for flashboard axis in the embodiment one of the flashboard locking device of preventer of the present invention with lock shaft
Figure.
The main view that Fig. 6 coordinates for flashboard axis in the embodiment one of the flashboard locking device of preventer of the present invention with lock shaft
Figure.(having marked a and b less)
Fig. 7 is the enlarged drawing of the parts a in Fig. 6.
Fig. 8 is the enlarged drawing of the parts b in Fig. 6.
Fig. 9 is moved to by unlocked position successively for lock shaft in the embodiment one of the flashboard locking device of preventer of the present invention
The schematic diagram of locked position.
Position after Figure 10 coordinates for lock shaft in the embodiment one of the flashboard locking device of preventer of the present invention with executing agency
In the schematic diagram of unlocked position.
Figure 11 is after flashboard described in the embodiment one of the flashboard locking device of preventer of the present invention is opened in unlock shape
The schematic diagram of state.
Position after Figure 12 coordinates for lock shaft in the embodiment one of the flashboard locking device of preventer of the present invention with executing agency
In the schematic diagram of locked position.
Figure 13 is after flashboard described in the embodiment one of the flashboard locking device of preventer of the present invention is closed in locking shape
The schematic diagram of state.
Position after Figure 14 coordinates for lock shaft in the embodiment two of the flashboard locking device of preventer of the present invention with executing agency
In the schematic diagram of unlocked position.
Figure 15 is after flashboard described in the embodiment two of the flashboard locking device of preventer of the present invention is opened in unlock shape
The schematic diagram of state.
Position after Figure 16 coordinates for lock shaft in the embodiment two of the flashboard locking device of preventer of the present invention with executing agency
In the schematic diagram of locked position.
Figure 17 is after flashboard described in the embodiment two of the flashboard locking device of preventer of the present invention is closed in locking shape
The schematic diagram of state.
The main view that Figure 18 coordinates for flashboard axis in the embodiment three of the flashboard locking device of preventer of the present invention with lock shaft
Figure.
Figure 19 is the enlarged drawing of the parts a1 in Figure 18.
Figure 20 is the enlarged drawing of the parts a2 in Figure 18.
The perspective that Figure 21 coordinates for flashboard axis in the example IV of the flashboard locking device of preventer of the present invention with lock shaft
Figure.
The main view that Figure 22 coordinates for flashboard axis in the example IV of the flashboard locking device of preventer of the present invention with lock shaft
Figure one.
Figure 23 is the enlarged drawing of the parts a3 in Figure 22.
Figure 24 is the enlarged drawing of the parts a4 in Figure 22.
The main view that Figure 25 coordinates for flashboard axis in the example IV of the flashboard locking device of preventer of the present invention with lock shaft
Figure two.
Figure 26 is the enlarged drawing of the parts a5 in Figure 25.
Figure 27 is the enlarged drawing of the parts a6 in Figure 25.
The main view that Figure 28 coordinates for flashboard axis in the embodiment five of the flashboard locking device of preventer of the present invention with lock shaft
Figure.
Figure 29 is the enlarged drawing of the parts b1 in Figure 28.
Figure 30 is the enlarged drawing of the parts b2 in Figure 28.
The main view that Figure 31 coordinates for flashboard axis in the embodiment six of the flashboard locking device of preventer of the present invention with lock shaft
Figure.
Figure 32 is the enlarged drawing of the parts b3 in Figure 31.
Figure 33 is the enlarged drawing of the parts b4 in Figure 31.
The perspective that Figure 34 coordinates for flashboard axis in the embodiment seven of the flashboard locking device of preventer of the present invention with lock shaft
Figure.
The main view that Figure 35 coordinates for flashboard axis in the embodiment seven of the flashboard locking device of preventer of the present invention with lock shaft
Figure.
Figure 36 is the enlarged drawing of the parts c1 in Figure 35.
Figure 37 is the enlarged drawing of the parts c2 in Figure 35.
Figure 38 is the sectional view one splitted along line C-C in Figure 35.
Figure 39 is the sectional view one splitted along line D-D in Figure 35.
Figure 40 is the sectional view two splitted along line C-C in Figure 35.
Figure 41 is the sectional view two splitted along line D-D in Figure 35.
Figure 42 is the sectional view three splitted along line C-C in Figure 35.
Figure 43 is the sectional view three splitted along line D-D in Figure 35.
The main view that Figure 44 coordinates for flashboard axis in the embodiment eight of the flashboard locking device of preventer of the present invention with lock shaft
Figure.
Figure 45 is the enlarged drawing of the parts d1 in Figure 44.
Figure 46 is the enlarged drawing of the parts d2 in Figure 44.
Figure 47 forms two groups of spiral shells for flashboard axis in the embodiment eight of the flashboard locking device of preventer of the present invention with lock shaft
Revolve the schematic diagram of curved surface.
The inside that Figure 48 coordinates for flashboard axis in the embodiment eight of the flashboard locking device of preventer of the present invention with lock shaft
Structural schematic diagram one.
Figure 49 is the enlarged drawing of the parts e1 in Figure 48.
Figure 50 is the enlarged drawing of the parts e2 in Figure 48.
The inside that Figure 51 coordinates for flashboard axis in the embodiment eight of the flashboard locking device of preventer of the present invention with lock shaft
Structural schematic diagram two.
Figure 52 is the enlarged drawing of the parts f1 in Figure 51.
Figure 53 is the enlarged drawing of the parts f2 in Figure 51.
The perspective that Figure 54 coordinates for flashboard axis in the embodiment nine of the flashboard locking device of preventer of the present invention with lock shaft
Figure.
The main view that Figure 55 coordinates for flashboard axis in the embodiment nine of the flashboard locking device of preventer of the present invention with lock shaft
Figure.
Figure 56 is the enlarged drawing of the parts g1 in Figure 55.
Figure 57 is the enlarged drawing of the parts g2 in Figure 55.
The main view that Figure 58 coordinates for flashboard axis in the embodiment ten of the flashboard locking device of preventer of the present invention with lock shaft
Figure.
Figure 59 is the enlarged drawing of the parts h1 in Figure 58.
Figure 60 is the enlarged drawing of the parts h2 in Figure 58.
Figure 61 coordinates for flashboard axis in the embodiment 11 of the flashboard locking device of preventer of the present invention with lock shaft saturating
View.
The master that Figure 62 coordinates for flashboard axis in the embodiment 11 of the flashboard locking device of preventer of the present invention with lock shaft
View.
Figure 63 is the enlarged drawing of the parts I1 in Figure 62.
Figure 64 is the enlarged drawing of the parts I2 in Figure 62.
Figure 65 is the sectional view splitted along E-E lines in Figure 62.
Figure 66 is the sectional view splitted along F-F lines in Figure 62.
The master that Figure 67 coordinates for flashboard axis in the embodiment 12 of the flashboard locking device of preventer of the present invention with lock shaft
View.
Figure 68 is the enlarged drawing of the parts J1 in Figure 67.
Figure 69 is the enlarged drawing of the parts J2 in Figure 67.
The master that Figure 70 coordinates for flashboard axis in the embodiment 13 of the flashboard locking device of preventer of the present invention with lock shaft
View.
Figure 71 is the enlarged drawing of the parts K1 in Figure 70.
Figure 72 is the enlarged drawing of the parts K2 in Figure 70.
Figure 73 is executing agency in the embodiment 14 of the flashboard locking device of preventer of the present invention and lock shaft cooperation
Stereogram.
Figure 74 is executing agency in the embodiment 15 of the flashboard locking device of preventer of the present invention and lock shaft cooperation
Stereogram.
Figure 75 coordinates permutation and combination signal for flashboard axis in the flashboard locking device of preventer of the present invention and locking shaft locking
Figure.
Specific implementation mode
For the above objects, features and advantages of the present invention can be clearer and more comprehensible, below in conjunction with attached drawing to the tool of the present invention
Body embodiment elaborates.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can be with
Implemented different from other manner described here using other, therefore the present invention do not limited by following public specific embodiment
System.
Embodiment one：
Fig. 1 is the structural schematic diagram of the embodiment one of the flashboard locking device of preventer of the present invention.As shown in Figure 1, this hair
It is bright to disclose a kind of flashboard locking device of preventer, including preventer 100, shell 110, flashboard 120, side door 130 and fluid cylinder
140, flashboard 120 is housed in shell 110, and side door 130 is fixed on the outside of shell 110, that is, is located at the outer end of flashboard 120,
Flashboard 120 is enclosed in shell 110, while making the flashboard axis 121 of connection flashboard 120 by being pierced by side door 130, fluid cylinder
140 are mounted on the outer end of side door 130.
It is equipped with first piston 160 in the end sleeve of flashboard axis 121, first piston 160 matches with the inner cavity of fluid cylinder 140, makes
Axial movement can be realized in fluid cylinder 140 by obtaining flashboard axis 121, to drive flashboard axis 121 to be moved in the interior intracavitary of fluid cylinder 140
Dynamic, wherein the piston stroke of first piston 160 is L.
Fig. 2 illustrates for the assembly of flashboard axis and lock shaft in the embodiment one of the flashboard locking device of preventer of the present invention
Figure.Fig. 3 is the sectional view splitted along line A-A in Fig. 2.Fig. 4 is the sectional view splitted along line B-B in Fig. 2.
As shown in Figures 2 to 4, in combination with Fig. 1, the flashboard locking device of preventer further includes lock shaft 150 and locking
One end of fluid cylinder 170, lock shaft 150 is connect with flashboard axis 121, and the other end of lock shaft 150 is pierced by by locking fluid cylinder 170, and
Locking fluid cylinder 170 is connect with the outer end of fluid cylinder 140, to realize lock shaft 150 relative movement and rotation lock in flashboard axis 121
Tightly.
Profiled holes 123 are offered in flashboard axis 121, locking bar 151 is correspondingly set on lock shaft 150 so that locking
Item 151 cooperates with profiled holes 123 and locks.A plurality of, such as one, two or three can be arranged in the quantity of locking bar 151,
And locking bar 151 is evenly distributed on lock shaft 150, by the uniform decile in the outer surface of lock shaft 150.Such as Fig. 2 to Fig. 4 institutes
Show, two locking bars 151 are set in the present embodiment on lock shaft 150, lock shaft 150 is subjected to the quartering.
The first spiral camber group 124, including spiral curved surface 1241 and 1242, locking bar are equipped in profiled holes 123
151 form the second spiral camber group 152, including spiral curved surface 1521 and 1522, the first spiral camber on lock shaft 150
124 matching corresponding to the second spiral camber group 152 of group, i.e. spiral curved surface 1241 match spiral curved surface 1521 and spiral
Rise curved surface 1242 and match spiral curved surface 1522, their helix angle matching is equal.The spiral shell of first spiral camber group 124
It is 0 ° -23 ° to revolve lift angle, and the helix angle of the second spiral camber group 152 is 0 ° -23 °.First spiral camber group in the present embodiment
124 and second spiral camber group 152 helix angle be 0 °, i.e. the first spiral camber group 124 and the second spiral camber group 152 are
Plane.Particularly, the position height for the second spiral camber group 152 that two locking bars 151 are formed is consistent with each other, same profiled holes
The position height of the first spiral camber group 124 in 123 is also consistent with each other.
The perspective that Fig. 5 coordinates for flashboard axis in the embodiment one of the flashboard locking device of preventer of the present invention with lock shaft
Figure.The front view that Fig. 6 coordinates for flashboard axis in the embodiment one of the flashboard locking device of preventer of the present invention with lock shaft.Fig. 7
For the enlarged drawing of the parts a in Fig. 6.Fig. 8 is the enlarged drawing of the parts b in Fig. 6.
As shown in Figure 5 to Figure 6,123 end of profiled holes, which has, is oriented to circular hole 1231, while 150 end of lock shaft has guiding to justify
Column 1511,151 ring of locking bar are located on the outer surface of lock shaft 150.Wherein, flashboard axis is oriented to depth L1, and lock shaft is oriented to length
Spend L3 and flashboard axis column part overall length L2.The value range of L1 is 0~(flashboard axis column part overall length L2- piston stroke L)；
The value range of L3 is 0~(flashboard axis column part overall length L2- piston stroke L).Following embodiment like that, repeats no more.
As shown in Figure 7 and Figure 8, the helix angle of profiled holes 123 is 0 ° in the present embodiment, the helix angle of locking bar 151
Also it is 0 °, the two can be mutually matched locking.
According to above structure, lock shaft 150 and flashboard axis 121 are contacted by corresponding helix angle and are matched, by the two
Between frictional force realize self-locking.
Fig. 9 is moved to by unlocked position successively for lock shaft in the embodiment one of the flashboard locking device of preventer of the present invention
The schematic diagram of locked position.As shown in figure 9, lock shaft 150 moves to locked position by unlocked position in the direction of the arrow X.When
When lock shaft 150 is in the unlocked position, lock shaft 150 is whole to be retracted in the profiled holes 123 of flashboard axis 121.With flashboard axis
121 movement, lock shaft 150 are gradually relatively stretched out from flashboard axis 121 from inside to outside, and are rotated until lock shaft 150 the
Two spiral camber groups match locking with the first spiral camber group of the profiled holes 123 of flashboard axis 121.Unlocking movement is locking movement
Reverse procedure, details are not described herein.
The flashboard locking device of the preventer of above structure directly drives the rotation of lock shaft outer end to real using manpower
Existing manual locking.
In addition, on the basis of above structure, the flashboard locking device of preventer of the invention can also include executing
Mechanism 180, to further realize that hydraulic automatic locking is tight.
Position after Figure 10 coordinates for lock shaft in the embodiment one of the flashboard locking device of preventer of the present invention with executing agency
In the schematic diagram of unlocked position.Figure 11 is after flashboard described in the embodiment one of the flashboard locking device of preventer of the present invention is opened
Schematic diagram in the unlocked state.Figure 12 is lock shaft in the embodiment one of the flashboard locking device of preventer of the present invention and execution
It is located at the schematic diagram of locked position after mechanism cooperation.Figure 13 is institute in the embodiment one of the flashboard locking device of preventer of the present invention
State the schematic diagram that locking state is in after flashboard is closed.
As shown in Figure 10 to Figure 13, the other end in lock shaft 150 is arranged in executing agency 180, is mainly used for driving locking
The rotation of axis 150.Preferably, executing agency 180 includes second piston 184, third piston 185, the first rack 182, the second tooth
Item 183 and rotate gear 181, rotate gear 181 are threaded through on the other end of lock shaft 150.Rotate gear 181 and lock shaft
Between 150 by the way of key connecting, keyway 155 is set on lock shaft 150,1811 (such as Fig. 5 of key is placed in keyway 155
It is shown), by key 1811 so that rotate gear 181 is connected as one with lock shaft 150.Second piston 184 and the first rack 182
It is fixed together, third piston 185 is fixed together with the second rack 183, and the first rack 182 is in rotate gear
181 tops are engaged with rotate gear 181, and the second rack is engaged in 181 lower part of rotate gear with rotate gear 181, and second lives
Plug 184 and third piston 185 are located at the both sides of rotate gear 181.First rack 182 and the second rack 183 are lived second
Rotate gear 181 is pushed to be rotated clockwise or counterclockwise simultaneously under the drive of plug 184 and third piston 185, to realize
Locking or unlocking motion counterclockwise clockwise.
180 entirety of executing agency is housed in interior by the locking fluid cylinder 170 of the flashboard locking device of preventer.Lock fluid cylinder
There is sealing element to be sealed on lock shaft 150 in 170, thus by the unlock chamber 210 of the close cavity 142 of fluid cylinder 140 and locking fluid cylinder 170
Isolation, and lock 170 end of fluid cylinder and separately there is sealing element to be sealed on lock shaft 150 and do not let out so that unlocking hydraulic oil in chamber 210
It drains in air.
As shown in Figure 10 and Figure 11, the flashboard locking device of the preventer in the present embodiment drives piston by hydraulic pressure
160 and by its drive flashboard axis 121 move, to drive the folding of flashboard 120.Therefore, related oil is opened up on 130 top of side door
Road 131 makes pass oil circuit 131 be connected to the close cavity 142 of fluid cylinder 140.It is same in 131 lower part of pass oil circuit that 130 top of side door opens up
Direction is parallel to open up out oil circuit 141, and oil circuit 141 and fluid cylinder 140 is made out to begin to speak 143 to be connected to.It closes oil circuit 131 and opens oil circuit 141
It is two separately operation, non-interfering independent oil paths.Simultaneously locking oil circuit 172 and unlock are offered on locking fluid cylinder 170
Oil circuit 171, unlock oil circuit 171 be connected to oil circuit 141 is opened, lock oil circuit 172 with pass oil circuit 131 be connected to, and with the pass of fluid cylinder 140
Chamber 142 is connected to.143 are begun to speak from after opening oil circuit 141 and be passed through hydraulic oil when fluid cylinder 140, and first piston 160 drives flashboard axis 121
It is moved to the direction far from well head center, 150 part of lock shaft is inserted in wherein by the profiled holes 123 of flashboard axis 121.Simultaneously because
It unlocks oil circuit 171 and opens oil circuit 141 and communicate, so hydraulic oil also enters unlock chamber 210 simultaneously by unlocking oil circuit 171, by
Second piston 184 and third piston 185 are pushed into locking fluid cylinder lid 200.At this time second piston 184 and third piston 185 due to by
To the end face of locking fluid cylinder lid 200 prevention and stop motion, to which the first rack 182 and the second rack 183 can not be driven
Movement, and then rotate gear 181 can not be driven to rotate counterclockwise.When hydraulic oil pushes first piston 160 and locks fluid cylinder 170
When end face contacts, 160 stop motion of first piston is made due to the prevention of 170 end face of locking fluid cylinder.In this way after removal hydraulic coupling,
The flashboard locking device of entire preventer is in the unlocked state (as shown in figure 11).
As shown in Figure 12 and Figure 13, after the close cavity 142 of fluid cylinder 140 is passed through hydraulic oil from pass oil circuit 131,160 band of piston
Dynamic flashboard axis 121 is moved to well head center position, and the hydraulic oil locked at this time in oil circuit 172 also enters lock chambers 220 simultaneously, is intended to
It pushes second piston 184 and third piston 185 are corresponding simultaneously to drive the first rack 182 and the movement of the second rack 183, passes through rack
Rotate gear 181 is set to have the tendency that lock shaft 150 is driven to rotate clockwise with engaging for rotate gear 181, but due to locking at this time
Mandrel 150 is also in inside flashboard axis 121, and flashboard axis 121 prevents rotating clockwise for lock shaft 150.Lock shaft 150 is in nothing
In the case that method moves, flashboard axis 121 and lock shaft 150 gradually axial separation, until the second spiral camber on lock shaft 150
When group 152 is detached from the prevention of flashboard axis 150, lock shaft 150 occurs clockwise immediately under the guiding role of guide cylinder 1511
It rotates and matching corresponding to the first spiral camber group 124 on flashboard axis 150 is to lock.After removal hydraulic coupling, lock shaft 150 with
Flashboard axis 121 continues to maintain the lock status.Particularly, when the angle of spiral curved surface group is not 0 ° (such as embodiment 5),
Lock shaft 151 can compensate the mill due to drilling rod and gate rubber core automatically by increasing the angle of rotation automatically during use
The increase of axial internal clearance caused by damage.
Embodiment two：
The structure of the present embodiment and the structure of embodiment one are essentially identical, the difference is that：Blowout prevention in the present embodiment
The locking oil circuit opened up in the flashboard locking device of device is different, thus correspondingly by executing agency 180 for piston and rack
Connection relation setting it is different.
Position after Figure 14 coordinates for lock shaft in the embodiment two of the flashboard locking device of preventer of the present invention with executing agency
In the schematic diagram of unlocked position.Figure 15 is after flashboard described in the embodiment two of the flashboard locking device of preventer of the present invention is opened
Schematic diagram in the unlocked state.Figure 16 is lock shaft in the embodiment two of the flashboard locking device of preventer of the present invention and execution
It is located at the schematic diagram of locked position after mechanism cooperation.Figure 17 is institute in the embodiment two of the flashboard locking device of preventer of the present invention
State the schematic diagram that locking state is in after flashboard is closed.
As shown in figure 14, executing agency 180 includes second piston 184, third piston 185, the first rack 182, the second tooth
Item 183 and rotate gear 181, rotate gear 181 are threaded through on the other end of lock shaft 150.Second piston 184 and the second tooth
Item 183 is fixed together, and third piston 185 is fixed together with the first rack 182, and the first rack 182 is rotating
181 top of gear is engaged with rotate gear 181, and the second rack 183 is engaged in 181 lower part of rotate gear with rotate gear 181, and
Second piston 184 and third piston 185 are located at the both sides of rotate gear 181.First rack 182 and the second rack 183 divide
Rotate gear 181 is pushed to be turned clockwise or counterclockwise simultaneously not under the drive of third piston 185 and second piston 184
It is dynamic, to realize locking or unlocking motion counterclockwise clockwise.
As shown in figure 15, related oil circuit 131 is opened up on 130 top of side door, makes the close cavity 142 of pass oil circuit 131 and fluid cylinder 140
Connection.Oil circuit 141 is opened up out the 131 lower part same direction of pass oil circuit that 130 top of side door opens up is parallel, make out oil circuit 141 with
143 connections of beginning to speak of fluid cylinder 140.It is two separately operation, non-interfering independent oil paths to close oil circuit 131 and open oil circuit 141.Together
When interconnected unlock oil circuit 171 and unlock oil circuit 173 are offered on locking fluid cylinder 170, unlock and opens oil circuit at oil circuit 173
141 connections, and unlock oil circuit 173 and fluid cylinder 140 and begin to speak 143 to be connected to.It begins to speak 143 to be passed through from oil circuit 141 is opened when fluid cylinder 140
After hydraulic oil, first piston 160 drives flashboard axis 121 to far from well head center position movement, the profiled holes 123 of flashboard axis 121
150 part of lock shaft is inserted in wherein.Simultaneously because unlock oil circuit 171 and unlock oil circuit 173 are communicated with oil circuit 141 is opened, so
Hydraulic oil also enters unlock chamber 210 simultaneously by unlocking oil circuit 171 and unlock oil circuit 173, to connect with second piston 184
183 end of the second rack connect is pushed to the inner face of second piston 185, while the first tooth that will be connect with third piston 185
182 end of item is pushed to the inner face of first piston 184.At this point, second piston 184 and third piston 185 are due to by other side
The prevention of inner face and stop motion, to which the first rack 182 and the second rack 183 can not be driven to move, and then can not drive
Rotate gear 181 rotates counterclockwise.When hydraulic oil, which pushes first piston 160, to be contacted with the end face for locking fluid cylinder 170, due to lock
The prevention of tight 170 end face of fluid cylinder and make 160 stop motion of first piston.After removal hydraulic coupling, the flashboard of entire preventer is locked
Device is in the unlocked state.
As shown in Figure 16 and Figure 17, after the close cavity 142 of fluid cylinder 140 is passed through hydraulic oil from pass oil circuit 131,160 band of piston
Dynamic flashboard axis 121 is moved to well head center position, and hydraulic oil also enters lock chambers 220 simultaneously in close cavity 142 at this time, is intended to push the
Two pistons 184 and the second rack 183 of corresponding drive and the movement of the first rack 182 simultaneously of third piston 185, pass through rack and rotation
The engagement of gear 181 makes rotate gear 181 have the tendency that lock shaft 150 is driven to rotate clockwise, but due to lock shaft 150 at this time
It is also in inside flashboard axis 121, flashboard axis 121 prevents rotating clockwise for lock shaft 150.Lock shaft 150 can not move
In the case of, flashboard axis 121 and lock shaft 150 gradually axial separation, until the second spiral camber group 152 on lock shaft 150
When being detached from the prevention of flashboard axis 150, lock shaft 150 rotates clockwise simultaneously immediately under the guiding role of guide cylinder 1511
Matching corresponding to the first spiral camber group 124 on flashboard axis 150 is to lock.After removal hydraulic coupling, lock shaft 150 and flashboard axis
121 continue to maintain the lock status.Particularly, it when the angle of spiral curved surface group is not 0 ° (such as embodiment 5), was using
Lock shaft 151 can automatically be compensated by increasing the angle of rotation automatically since the abrasion of drilling rod and gate rubber core is led in journey
The increase of the axial internal clearance of cause.
Embodiment three：
The main view that Figure 18 coordinates for flashboard axis in the embodiment three of the flashboard locking device of preventer of the present invention with lock shaft
Figure.Figure 19 is the enlarged drawing of the parts a1 in Figure 18.Figure 20 is the enlarged drawing of the parts a2 in Figure 18.
As shown in Figure 18 to Figure 20, the structure of the structure and embodiment one of the present embodiment is essentially identical, and difference exists
In：The helix angle of first spiral camber group 124 of the profiled holes 123 in flashboard axis 121 is 0 °, the lock of same lock shaft 150
The helix angle of second spiral camber group 152 of tight item 151 is 0 °.Particularly, the second helical curve that two locking bars 151 are formed
The position height of face group 152 is inconsistent.
Example IV：
The perspective that Figure 21 coordinates for flashboard axis in the example IV of the flashboard locking device of preventer of the present invention with lock shaft
Figure.The front view one that Figure 22 coordinates for flashboard axis in the example IV of the flashboard locking device of preventer of the present invention with lock shaft.
Figure 23 is the enlarged drawing of the parts a3 in Figure 22.Figure 24 is the enlarged drawing of the parts a4 in Figure 22.
As shown in FIG. 21 to 24, the structure of the structure with embodiment one of the present embodiment is essentially identical, and difference exists
In：The position height for the second spiral camber group 152 that two locking bars 151 are formed is consistent with each other, and the in same profiled holes 123
The position height of one spiral camber group 124 is also consistent with each other.The end shape of lock shaft 151 is outer male conical, flashboard axis 121
It is inner concave conical to be oriented under circular hole, and semi-cone angle θ 1,2 value ranges of θ are 1 ° of -90 ° of 25'43 ".Flashboard axis 121 and lock shaft 150 exist
It overlaps and locks at the semi-cone angle of correspondent equal.
The main view that Figure 25 coordinates for flashboard axis in the example IV of the flashboard locking device of preventer of the present invention with lock shaft
Figure two.Figure 26 is the enlarged drawing of the parts a5 in Figure 25.Figure 27 is the enlarged drawing of the parts a6 in Figure 25.
As shown in Figure 25 to Figure 27, similarly it is also possible that setting：The second spiral camber group that two locking bars 151 are formed
152 position height is inconsistent.The position height of the first spiral camber group 124 in profiled holes 123 is also inconsistent.It locks simultaneously
The end shape of axis 151 is outer male conical, is inner concave conical under the guiding circular hole of flashboard axis 121.Specifically, lock shaft half cone
θ 3 value ranges in angle are 1 ° of -90 ° of 25'43 ", and 4 value ranges of semi-cone angle θ are 1 ° of -90 ° of 25'43 ".Flashboard axis 121 and lock shaft
150 overlap and are locked at the semi-cone angle of correspondent equal.
Embodiment five：
The main view that Figure 28 coordinates for flashboard axis in the embodiment five of the flashboard locking device of preventer of the present invention with lock shaft
Figure.Figure 29 is the enlarged drawing of the parts b1 in Figure 28.Figure 30 is the enlarged drawing of the parts b2 in Figure 28.
As shown in Figure 28 to Figure 30, the structure of the structure and embodiment one of the present embodiment is essentially identical, and difference exists
In：The helix angle θ 5 of first spiral camber group 124 of the profiled holes 123 in flashboard axis 121 is 5 °, same lock shaft 150
The helix angle θ 5 of second spiral camber group 152 of locking bar 151 is 5 °.Two lockings are provided on lock shaft 150 herein
Item 151, by the outer round surface quartering of lock shaft 150.Particularly, the second spiral camber group 152 that two locking bars 151 are formed
Position height it is consistent with each other, the position height of the first spiral camber group 124 in same profiled holes 123 is also consistent with each other.Class
Classify like the angle of semi-cone angle θ 1 and semi-cone angle θ 2 in embodiment 4, the feelings for overlapping and locking at the semi-cone angle of correspondent equal
Condition, can also be converted into the case where embodiment 5 has helix angle at the helix angle of correspondent equal overlap and lock and
Same to implement, details are not described herein.
Embodiment six：
The main view that Figure 31 coordinates for flashboard axis in the embodiment six of the flashboard locking device of preventer of the present invention with lock shaft
Figure.Figure 32 is the enlarged drawing of the parts b3 in Figure 31.Figure 33 is the enlarged drawing of the parts b4 in Figure 31.
As shown in Figure 31 to Figure 33, the structure of the structure and embodiment one of the present embodiment is essentially identical, and difference exists
In：The helix angle θ 6 of first spiral camber group 124 of the profiled holes 123 in flashboard axis 121 is 5 °, same lock shaft 150
The helix angle θ 6 of second spiral camber group 152 of locking bar 151 is 5 °.Two locking bars are provided on lock shaft 150 herein
151, by the outer round surface quartering of lock shaft 150.Particularly, the second spiral camber group 152 that two locking bars 151 are formed
Position height is inconsistent.Preferably the second spiral camber group 152 of each locking bar 151 is located on a helix, these locks
The sideline at tight position just overlaps on helix.The position height of the first spiral camber group 124 in same profiled holes 123 is not yet
Unanimously.As soon as preferably the first spiral camber group 124 of profiled holes 123 is located on a helix, the sideline at these locking positions
It overlaps on helix.
Embodiment seven：
The perspective that Figure 34 coordinates for flashboard axis in the embodiment seven of the flashboard locking device of preventer of the present invention with lock shaft
Figure.The front view that Figure 35 coordinates for flashboard axis in the embodiment seven of the flashboard locking device of preventer of the present invention with lock shaft.Figure
36 be the enlarged drawing of the parts c1 in Figure 35.Figure 37 is the enlarged drawing of the parts c2 in Figure 35.
As shown in Figure 34 to Figure 37, the structure of the structure and embodiment one of the present embodiment is essentially identical, and difference exists
In：One locking bar 151 is set on lock shaft 150, the outer round surface of lock shaft 150 is halved.Abnormal shape in flashboard axis 121
The helix angle of first spiral camber 124 in hole 123 is 0 ° (be plane), the second of the locking bar 151 of same lock shaft 150
The helix angle of spiral camber 152 is 0 ° (being plane).
Figure 38 is the sectional view one splitted along line C-C in Figure 35.Figure 39 is the sectional view one splitted along line D-D in Figure 35.
As shown in Figure 38 and Figure 39, the section of profiled holes 123 is semi-circular shape in flashboard axis 121, correspondingly the locking bar of lock shaft 150
151 section is corresponding semi-circular shape, is convenient for the two smoothly fitting.
Figure 40 is the sectional view two splitted along line C-C in Figure 35.Figure 41 is the sectional view two splitted along line D-D in Figure 35.
As shown in Figure 40 and Figure 41, profiled holes 123 and the locking bar of lock shaft 150 151 may be arranged as tying as follows in flashboard axis 121
Structure：Angle beta 1 of angle [alpha] 1 and lower part of the top of the section of profiled holes 123 with evagination with evagination in flashboard axis 121.Phase
Answer the angle beta 2 of angle [alpha] 2 and lower part of the top with evagination with evagination of the section of the locking bar 151 of ground lock shaft 150.This
In desirable 0 ° -30 ° of angle [alpha] 1, angle beta 1 also can use 0 ° -30 °, and the two angle can be combined arbitrarily.Same angle [alpha] 2 is 0 ° desirable-
30 °, angle beta 2 also can use 0 ° -30 °, and the two angle can be combined arbitrarily.But the value of angle [alpha] 1 and angle [alpha] 2 must identical, angle
It spends β 1 and 2 value of angle beta must be identical.
Figure 42 is the sectional view three splitted along line C-C in Figure 35.Figure 43 is the sectional view three splitted along line D-D in Figure 35.
As shown in Figure 42 and Figure 43, profiled holes 123 and the locking bar of lock shaft 150 151 may be arranged as tying as follows in flashboard axis 121
Structure：Angle beta 3 of angle [alpha] 3 and lower part of the top of the section of profiled holes 123 with indent with indent in flashboard axis 121.Phase
Answer the angle beta 4 of angle [alpha] 4 and lower part of the top with indent with indent of the section of the locking bar 151 of ground lock shaft 150.This
In desirable 0 ° -30 ° of angle [alpha] 3, angle beta 3 also can use 0 ° -30 °, and the two angle can be combined arbitrarily.Same angle [alpha] 4 is 0 ° desirable-
30 °, angle beta 4 also can use 0 ° -30 °, and the two angle can be combined arbitrarily.But the value of angle [alpha] 3 and angle [alpha] 4 must identical, angle
It spends β 3 and 4 value of angle beta must be identical.
Embodiment eight：
The main view that Figure 44 coordinates for flashboard axis in the embodiment eight of the flashboard locking device of preventer of the present invention with lock shaft
Figure.Figure 45 is the enlarged drawing of the parts d1 in Figure 44.Figure 46 is the enlarged drawing of the parts d2 in Figure 44.
As shown in Figure 44 to Figure 46, the structure of the structure and embodiment seven of the present embodiment is essentially identical, and difference exists
In：The helix angle θ 7 of first spiral camber 124 of the profiled holes 123 in flashboard axis 121 is 3 °, the lock of same lock shaft 150
The helix angle θ 7 of second spiral camber 152 of tight item 151 is 3 °.
Figure 47 forms two layers of spiral shell for flashboard axis in the embodiment eight of the flashboard locking device of preventer of the present invention with lock shaft
Revolve the schematic diagram of curved surface.As shown in figure 47, the locking of two contact surfaces may be used in the locking between flashboard axis 121 and lock shaft 150
Mode, that is, form two helical layer curved surfaces, the width of contact surface 156 is less than the width of spiral camber slot 125, both to pass through
Matching realize locking, the mode of action is identical as a locking contact surface, contact surfaces are locked in more settings can to lock
It is more reliable.Certainly, above-mentioned contact surface locking mode can also apply to other helix angles or multi-layer helical curved regions, same
Above-mentioned function may be implemented.
The inside that Figure 48 coordinates for flashboard axis in the embodiment eight of the flashboard locking device of preventer of the present invention with lock shaft
Structural schematic diagram one.Figure 49 is the enlarged drawing of the parts e1 in Figure 48.Figure 50 is the enlarged drawing of the parts e2 in Figure 48.Such as Figure 48 to figure
Shown in 50, when above-mentioned helix angle θ 7 is 3 °, lock shaft 150 could be provided as convex.Specifically, different in flashboard axis 121
First spiral camber 124 of type hole 123 and the internal face angle theta 8 of profiled holes 123 are 1 ° of -90 ° of 25'43 ".Lock shaft 150 is locked
Second spiral camber 152 of tight item 151 and the outer surface angle theta 8 of locking bar 151 are 1 ° of -90 ° of 25'43 ".
The inside that Figure 51 coordinates for flashboard axis in the embodiment eight of the flashboard locking device of preventer of the present invention with lock shaft
Structural schematic diagram two.Figure 52 is the enlarged drawing of the parts f1 in Figure 51.Figure 53 is the enlarged drawing of the parts f2 in Figure 51.Such as Figure 51 to figure
Shown in 53, when above-mentioned helix angle θ 7 is 3 °, lock shaft 150 could be provided as concave.Specifically, different in flashboard axis 121
First spiral camber 124 of type hole 123 and the internal face angle theta 9 of profiled holes 123 are 1 ° of -90 ° of 25'43 ".Lock shaft 150 is locked
Second spiral camber 152 of tight item 151 and the outer surface angle theta 9 of locking bar 151 are 1 ° of -90 ° of 25'43 ".
As shown in Figure 48 and Figure 51, the case where can equally be well applied on lock shaft 150 that a plurality of locking bar 151 is arranged, example
Two locking bars 151 are such as set by 150 quartering of lock shaft, or three locking bars 151 are set by 150 6 decile of lock shaft.θ8,
9 value ranges of θ are 1 ° of -90 ° of 25'43 ".
Embodiment nine：
The perspective that Figure 54 coordinates for flashboard axis in the embodiment nine of the flashboard locking device of preventer of the present invention with lock shaft
Figure.The front view that Figure 55 coordinates for flashboard axis in the embodiment nine of the flashboard locking device of preventer of the present invention with lock shaft.Figure
56 be the enlarged drawing of the parts g1 in Figure 55.Figure 57 is the enlarged drawing of the parts g2 in Figure 55.
As shown in Figure 54 to Figure 57, the structure of the structure and embodiment seven of the present embodiment is essentially identical, and different is：
The helix angle θ 10 of first spiral camber 124 of the profiled holes 123 in flashboard axis 121 is 17 °, the locking of same lock shaft 150
The helix angle θ 10 of second spiral camber 152 of item 151 is 17 °.
Embodiment ten：
The main view that Figure 58 coordinates for flashboard axis in the embodiment ten of the flashboard locking device of preventer of the present invention with lock shaft
Figure.Figure 59 is the enlarged drawing of the parts h1 in Figure 58.Figure 60 is the enlarged drawing of the parts h2 in Figure 58.
As shown in Figure 58 to Figure 60, the structure of the structure and embodiment seven of the present embodiment is essentially identical, and different is：
The helix angle θ 11 of first spiral camber 124 of the profiled holes 123 in flashboard axis 121 is 23 °, the locking of same lock shaft 150
The helix angle θ 11 of second spiral camber 152 of item 151 is 23 °.The helix angle of certain angle is set in all embodiments
Both self-locking may be implemented, axial motive force can also be generated in rotation process, can also compensate automatically due to drilling rod and
The increase of axial internal clearance caused by the abrasion of gate rubber core, and the excessive phenomenon of the unlock in releasing process can be prevented.
Compared with embodiment nine, in the case where equally can guarantee self-locking, since the increase of helix angle will cause in identical angle of rotation
It is produced under conditions of degree than nine more axial internal clearances of embodiment.
Embodiment 11：
Figure 61 coordinates for flashboard axis in the embodiment 11 of the flashboard locking device of preventer of the present invention with lock shaft saturating
View.The main view that Figure 62 coordinates for flashboard axis in the embodiment 11 of the flashboard locking device of preventer of the present invention with lock shaft
Figure.Figure 63 is the enlarged drawing of the parts I1 in Figure 62.Figure 64 is the enlarged drawing of the parts I2 in Figure 62.
As shown in Figure 61 to Figure 64, the structure of the structure and embodiment one of the present embodiment is essentially identical, and difference exists
In：Three locking bars 151 are set on lock shaft 150, by six decile of outer round surface of lock shaft 150.Abnormal shape in flashboard axis 121
The helix angle of the first spiral camber group 124 in hole 123 is 0 ° (be plane), the of the locking bar 151 of same lock shaft 150
The helix angle of two spiral camber groups 152 is 0 ° (being plane).
Figure 65 is the sectional view splitted along E-E lines in Figure 62.Figure 66 is the sectional view splitted along F-F lines in Figure 62.Such as figure
Shown in 65 and Figure 66, locking bar 151 is by 150 6 decile of lock shaft, and profiled holes 123 are in shape correspondingly in flashboard axis 121, just
In the two smoothly fitting.
Embodiment 12：
The master that Figure 67 coordinates for flashboard axis in the embodiment 12 of the flashboard locking device of preventer of the present invention with lock shaft
View.Figure 68 is the enlarged drawing of the parts J1 in Figure 67.Figure 69 is the enlarged drawing of the parts J2 in Figure 67.
As shown in Figure 67 to Figure 69, the structure of the structure and embodiment 11 of the present embodiment is essentially identical, difference
It is：It is 7 ° that first spiral camber group 124 of the profiled holes 123 in flashboard axis 121, which has helix angle θ 12, same lock shaft
It is 7 ° that second spiral camber group 152 of 150 locking bar 151, which has helix angle θ 12,.Herein three are provided on lock shaft 150
Locking bar 151, by six decile of outer round surface of lock shaft 150.Particularly, the second helical curve that three locking bars 151 are formed
The position height of face group 152 is consistent with each other, and the position height of the first spiral camber group 124 in same profiled holes 123 is also mutual
Unanimously.
Embodiment 13：
The master that Figure 70 coordinates for flashboard axis in the embodiment 13 of the flashboard locking device of preventer of the present invention with lock shaft
View.Figure 71 is the enlarged drawing of the parts K1 in Figure 70.Figure 72 is the enlarged drawing of the parts K2 in Figure 70.
As shown in Figure 70 to Figure 72, the structure of the structure and embodiment 11 of the present embodiment is essentially identical, difference
It is：It is 7 ° that first spiral camber group 124 of the profiled holes 123 in flashboard axis 121, which has helix angle θ 13, same lock shaft
It is 7 ° that second spiral camber group 152 of 150 locking bar 151, which has helix angle θ 13,.Herein three are provided on lock shaft 150
Locking bar 151, by six decile of outer round surface of lock shaft 150.Particularly, the second helical curve that three locking bars 151 are formed
The position height of face group 152 is inconsistent.Second spiral camber group 152 of preferably each locking bar 151 is located at a helix
On, the sideline at these locking positions just overlaps on helix.The position of the first spiral camber group 124 in same profiled holes 123
It is also inconsistent to set height.Preferably the first spiral camber group 124 of each profiled holes 123 is located on a helix, these locks
The sideline at tight position just overlaps on helix.
Embodiment 14：
Figure 73 is executing agency in the embodiment 14 of the flashboard locking device of preventer of the present invention and lock shaft cooperation
Stereogram.
As shown in Figure 73, the structure of the structure with embodiment one of the present embodiment is essentially identical, the difference is that：It executes
Mechanism 180 includes the 4th piston 300, the 5th piston 400, connecting rod 186 and oscillating rod 187.Oscillating rod 187 is mounted on lock shaft
150 other end, and oscillating rod 187 pass through connecting rod 186, the both ends of connecting rod 186 respectively with the 4th piston 300 and the 5th
Piston 400 is fixedly connected.
Hydraulic coupling by switching oil circuit pushes the 4th piston 300 and the 5th piston 400, by the 4th piston 300 and the 5th
Piston 400 pushes connecting rod 186, then drives oscillating rod 187 by connecting rod 186, then drives lock shaft 150 inverse by oscillating rod 187
Hour hands rotate clockwise.Figure 73 is shown pushes the 4th piston 300 and the 5th piston 400 in the hydraulic coupling for closing oil circuit, in turn
Oscillating rod 187 is pushed to rotate clockwise, the locked position to reach.Similarly, unlocked position is then the hydraulic pressure by opening oil circuit
Dynamic 4th piston 300 and 400 counter motion of the 5th piston are pushed, to promote the rotation unlock counterclockwise of lock shaft 150.
Embodiment 15：
Figure 74 is executing agency in the embodiment 15 of the flashboard locking device of preventer of the present invention and lock shaft cooperation
Stereogram.As shown in Figure 74, the structure of the structure with embodiment one of the present embodiment is essentially identical, the difference is that：It executes
Structure 180 includes driving gear 188, driven gear 189 and motor 190, and driven gear 189 is threaded through the another of lock shaft 150
End, driving gear 188 is connect by connecting shaft 191 with motor 190, while driven gear 189 is engaged with driving gear 188.
Motor 190 can from charged pool can also external power supply, by open oil circuit action of hydraulic force touch motor
190 rotate forward switch (i.e. counterclockwise), drive the rotation counterclockwise of driving gear 188 to drive driven gear 189 by connecting shaft 191
Rotate clockwise and lock, when unlock by close the hydraulic coupling of oil circuit touch motor 190 invert it is (clockwise) switch, by connecting
Spindle 191 drives driving gear 188 to rotate clockwise, and is unlocked to drive driven gear 189 to rotate counterclockwise.
Description based on the various embodiments described above, the quantity of locking bar can root in the flashboard locking device of preventer of the present invention
According to needing to be designed, corresponding helix angle can complete self-locking locking in 0 ° -23 °.The variation of helix angle is advantageous
It is adjusted in amount of movement in the axial direction.Helix angle is big, then identical corner causes the axial internal clearance of flashboard axis with regard to big, right
The increased compensation of axial internal clearance caused by the abrasion of drilling rod and gate rubber core is just more.Therefore locking bar quantity and its
The angle of helix angle is not restricted to the described embodiments, and can be allocated according to actual demand.
In addition, above-mentioned second piston 184, third piston 185, the 4th piston 300 and 400 cross section of the 5th piston can be with
It is not restricted to the described embodiments using round, oblong or ellipse, shape.
Figure 75 coordinates permutation and combination signal for flashboard axis in the flashboard locking device of preventer of the present invention and locking shaft locking
Figure.As shown in Figure 75, wherein O1 indicates locking bar by lock shaft decile, and O2 indicates there is helix angle, and O3 indicates helix angle
It it is 0 °, O4 indicates that the highly consistent of helix angle, O5 indicate that the height of helix angle is inconsistent, and O6 indicates that flashboard axis is oriented to circular hole
With depth is oriented to, O7 indicates that lock shaft guide cylinder has and is oriented to length, and O8 indicates axially facing surface angle (i.e. semi-cone angle),
O9 indicates that radially facing surface quantity, O10 indicate that flashboard axis lock shaft is concave-convex.Above-mentioned O1-O10 is the flashboard of preventer of the present invention
The technical characteristic that locking cooperation can limit between flashboard axis and lock shaft in locking device, in addition to O2 and O3, O4 and O5 cannot
Except intercombination, other can carry out arbitrary combination and form various embodiments.For example, O1, O3 and O5 are combined, institute is indicated
The locking cooperation between flashboard axis and lock shaft is stated by lock shaft by after arbitrary decile, the helix angle of flashboard axis and lock shaft is
0 °, and the inconsistent situation of height of helix angle.For another example, O1, O2, O4, O6, O7, O8, O9 and O10 are combined, and indicate the lock
By lock shaft by after arbitrary decile, flashboard axis and lock shaft have certain spiral liter for locking cooperation between board shaft and lock shaft
Angle, and helix angle is highly consistent, and flashboard axis is oriented to circular hole, and there is certain guiding depth, lock shaft guide cylinder to have
The axially facing surface of certain guiding length, flashboard axis and lock shaft has certain angle, and the radial direction of flashboard axis and lock shaft has
The contact surface shape of a certain number of contact surfaces, flashboard axis and lock shaft can be concave-convex each other situation.
It can be seen that these schemes can achieve the effect that the present invention, do not limited by above-mentioned illustrated embodiment.This
The permutation and combination form for locking cooperation in invention between flashboard axis and lock shaft is varied, can not pass through embodiment sieve one by one
Row.Therefore, as shown in Figure 75, those skilled in the art should be understood that the mode of various combinations, and details are not described herein.
In conclusion the flashboard locking device of preventer of the present invention can only need the circle of rotation lock mandrel 1/6 to can be achieved with locking
Tightly, if at least hundred times of efficiency, pole will be improved than traditional manual locking device by carrying out locking by the direct rotation lock mandrel of manpower
The earth reduces labor intensity and improves locking efficiency；If locked by hydraulic-driven executing agency rotation lock shaft
Tightly, then surging than tradition, locking device structure is simpler, volume is more small and exquisite, processing cost and failure rate are lower.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
Under the premise of from the principle and substance of the present invention, various changes or modifications can be made to these embodiments, but these are changed
Protection scope of the present invention is each fallen with modification.
Claims (10)
1. a kind of flashboard locking device of preventer, including flashboard, side door, flashboard axis, lock shaft and fluid cylinder, the flashboard installation
In the side door inner end, the flashboard axis is pierced by from the side door to be connect with the flashboard, and the fluid cylinder is mounted on the side
The end sleeve of the outer end of door, the flashboard axis is equipped with first piston, and the first piston is matched with the inner cavity of the fluid cylinder so that
The flashboard axis moves axially in the fluid cylinder, and the lock shaft, which can be partially disposed in inside flashboard axis, realizes relative motion,
It is characterized in that：
The flashboard axis is internally provided with axial profiled holes, and the lock shaft is equipped with the locking bar of N item axial directions, wherein the N
For natural number, the two can mutually fitting matching；
The profiled holes are radially equipped with the first spiral camber area, and the locking bar is radially equipped with the second spiral camber
Area, the two accordingly contact matching.
2. the flashboard locking device of preventer as described in claim 1, which is characterized in that first spiral camber area is the
One spiral camber, or be the first spiral camber group；
Second spiral camber area is the second spiral camber, or is the second spiral camber group；
The helix angle in first spiral camber area or the second spiral camber area is 0 ° -23 °.
3. the flashboard locking device of preventer as claimed in claim 2, which is characterized in that be equipped with multilayer the in the profiled holes
One spiral camber area, the locking bar form the second spiral camber of multilayer area on the lock shaft, and the two accordingly contacts matching.
4. the flashboard locking device of preventer as described in claim 1, which is characterized in that the abnormal shape bore ends have guiding to justify
Hole, the locking shaft end have guide cylinder.
5. the flashboard locking device of preventer as described in claim 1, which is characterized in that the profiled holes of the flashboard axis and institute
The locking bar male-female engagement mutual in the axial direction of lock shaft is stated, the semi-cone angle in the profiled holes and locking bar is 1 ° of 25'43 "-
90°。
6. the flashboard locking device of preventer as described in claim 1, which is characterized in that the flashboard locking dress of the preventer
It further includes executing agency to set, and the other end in the lock shaft is arranged in the executing agency, for driving the lock shaft to rotate.
7. the flashboard locking device of preventer as claimed in claim 6, which is characterized in that the executing agency includes locking liquid
Cylinder, one end of the lock shaft and the flashboard axis connection, the other end of the lock shaft penetrates in the locking fluid cylinder, described
Locking fluid cylinder is connect with the outer end of the fluid cylinder.
8. the flashboard locking device of preventer as claimed in claim 7, which is characterized in that the executing agency further includes second
Piston, third piston, the first rack, the second rack and rotate gear, the rotate gear are threaded through the another of the lock shaft
End；
First rack and second rack are engaged in the upper and lower of the rotate gear, the second piston and institute respectively
The first rack is stated to be fixedly connected, the third piston be fixedly connected with second rack or the second piston with it is described
Second rack is fixedly connected, and the third piston is fixedly connected with the first rack, and the second piston and the third piston
It is located at the both sides of the rotate gear；
The lock shaft is equipped with keyway, and the rotate gear passes through key and the locking axis connection；
The executing agency is contained in the locking fluid cylinder.
9. the flashboard locking device of preventer as claimed in claim 7, which is characterized in that the executing agency further includes the 4th
Piston, the 5th piston, connecting rod and oscillating rod, the oscillating rod are mounted on the other end of the lock shaft, and the oscillating rod
Across the connecting rod, the both ends of the connecting rod are fixedly connected with the 4th piston and the 5th piston respectively；
The executing agency is contained in the locking fluid cylinder.
10. the flashboard locking device of preventer as claimed in claim 6, which is characterized in that the executing agency includes actively
Gear, driven gear and motor, the driven gear are threaded through the other end of the lock shaft, and the driving gear passes through connection
Axis is connect with the motor, and the driven gear is engaged with the driving gear.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510214503.3A CN106194097B (en) | 2015-04-29 | 2015-04-29 | The flashboard locking device of preventer |
| PCT/CN2016/079716 WO2016173439A1 (en) | 2015-04-29 | 2016-04-20 | Gate locking device for blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510214503.3A CN106194097B (en) | 2015-04-29 | 2015-04-29 | The flashboard locking device of preventer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106194097A CN106194097A (en) | 2016-12-07 |
| CN106194097B true CN106194097B (en) | 2018-11-06 |
Family
ID=57198958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510214503.3A Active CN106194097B (en) | 2015-04-29 | 2015-04-29 | The flashboard locking device of preventer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106194097B (en) |
| WO (1) | WO2016173439A1 (en) |
Families Citing this family (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 |
| CN112065301B (en) * | 2020-09-03 | 2021-06-01 | 西南石油大学 | Drilling tool jacking-preventing device and method suitable for multi-specification drilling tools |
| CN113236175A (en) * | 2021-05-26 | 2021-08-10 | 王德根 | Ram blowout preventer for oil exploitation |
| CN115095294B (en) * | 2022-07-08 | 2023-12-29 | 安徽永生机械股份有限公司 | Locking device capable of rapidly disassembling and replacing flashboard |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2487864Y (en) * | 2001-04-25 | 2002-04-24 | 兰州石油机械研究所 | Blow-out preventer driven by hydraulic action or hand |
| CN1542255A (en) * | 2003-04-28 | 2004-11-03 | ¶ | Quick release blowout preventer bonnet |
| CN201074496Y (en) * | 2007-08-28 | 2008-06-18 | 建湖县鸿达阀门管件有限公司 | Single flashboard dual duct blowout preventer for testing oil |
| CN201159065Y (en) * | 2008-03-03 | 2008-12-03 | 任丘市铁虎石油机械有限公司 | Blowout prevention air deflector |
| US9004089B2 (en) * | 2009-08-10 | 2015-04-14 | Dean Foote | Blowout preventer with lock |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7798466B2 (en) * | 2007-04-27 | 2010-09-21 | Varco I/P, Inc. | Ram locking blowout preventer |
-
2015
- 2015-04-29 CN CN201510214503.3A patent/CN106194097B/en active Active
-
2016
- 2016-04-20 WO PCT/CN2016/079716 patent/WO2016173439A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2487864Y (en) * | 2001-04-25 | 2002-04-24 | 兰州石油机械研究所 | Blow-out preventer driven by hydraulic action or hand |
| CN1542255A (en) * | 2003-04-28 | 2004-11-03 | ¶ | Quick release blowout preventer bonnet |
| CN201074496Y (en) * | 2007-08-28 | 2008-06-18 | 建湖县鸿达阀门管件有限公司 | Single flashboard dual duct blowout preventer for testing oil |
| CN201159065Y (en) * | 2008-03-03 | 2008-12-03 | 任丘市铁虎石油机械有限公司 | Blowout prevention air deflector |
| US9004089B2 (en) * | 2009-08-10 | 2015-04-14 | Dean Foote | Blowout preventer with lock |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016173439A1 (en) | 2016-11-03 |
| CN106194097A (en) | 2016-12-07 |
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