CN106194097A - The flashboard locking device of preventer - Google Patents
The flashboard locking device of preventer Download PDFInfo
- Publication number
- CN106194097A CN106194097A CN201510214503.3A CN201510214503A CN106194097A CN 106194097 A CN106194097 A CN 106194097A CN 201510214503 A CN201510214503 A CN 201510214503A CN 106194097 A CN106194097 A CN 106194097A
- Authority
- CN
- China
- Prior art keywords
- flashboard
- lock shaft
- locking
- piston
- preventer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention provides the flashboard locking device of a kind of preventer, including flashboard, side door, flashboard axis, lock shaft and fluid cylinder, it is inner that flashboard is arranged on side door, flashboard axis passes from side door and is connected with flashboard, fluid cylinder is arranged on the outer end of side door, the end sleeve of flashboard axis is provided with first piston, first piston mates with the inner chamber of fluid cylinder, flashboard axis is moved axially in fluid cylinder, lock shaft can be partially disposed in inside flashboard axis and realize relative motion, axial profiled holes it is provided with inside flashboard axis, described lock shaft is provided with the locking strip that N bar is axial, both can be mutually matched fit, profiled holes be radially provided with the first spiral camber district, locking strip be radially provided with the second spiral camber district, both can be mutually matched.This invention simplifies structure and oil circuit, reduce the volume of locking device, have so that processing cost, labor intensity and fault rate reduce, the beneficial effect that locking efficiency, reliability, maintenance convenience improve.
Description
Technical field
The present invention relates to a kind of in the creeping into of soil layer or rock for sealing or insulate the device of well or well,
Flashboard locking device particularly to a kind of preventer.
Background technology
During oil, gas drilling, formation fluid is the most out of hand, it is possible to occur well kick or
Blowout out of control, it is necessary to use preventer that it is controlled, and ram preventer is in preventer requisite one
Kind.Ram preventer generally uses hydraulic oil control, by fluid cylinder hydraulic oil promote piston, flashboard axis and
Flashboard, makes flashboard move until cutting out flashboard to well head center position, reaches shut-in well, effectively control well head pressure
The purpose of power.After ram preventer shut-in well, if needing to shunt in a well or prevent hydraulic failure flashboard from opening for a long time
Situation, be necessary for use flashboard locking device flashboard is locked at its present position, prevent flashboard at well
Move out under the pressure of interior fluctuation, it is ensured that the stability of preventer shut-in well and reliability.
Flashboard locking device is divided into manual locking device and the locking device that surges.
Manual locking device mainly includes that hydraulic pressure closes lock shaft follower structure, hub splines structure, hydraulic pressure pass
Locking mandrel not follower structure 3 class.Being most commonly used that the first kind and the 3rd class in reality, Equations of The Second Kind is
Inside lock shaft, spline housing is added on the basis of one class, substantially identical with the first kind, but actually used
Less.The handling characteristics of three class formations is all to utilize artificial rotation hand wheel to drive lock shaft to depend on after rotating tens circles
Realize locking flashboard by the self-locking between lock shaft trapezoidal thread pair, unlock and also need to rotate backward handwheel tens equally
Circle.Although the purpose of locking can be reached, but three classes manual locking device is time-consuming, laborious, efficiency is low for this.
And due to well site environment and the change of temperature, thread contact face rust can be caused dead or occlusion, make locking conciliate
Lock difficulty, causes flashboard can not close smoothly and open.About the locking device that the surges, " stone published for 2007
Oil field field machinery " " ram preventer hydraulic locking fills in volume 36 the 10th phase case study of page 1～4
Put present Research " and the paper " lock of " oil drilling technology " the 4th phase of volume 36 published in July, 2008
Plate blowout preventer hydraulic locking device present situation and developmental research " these two papers are to domestic and international hydraulic locking apparatus
On the basis of present Research is analyzed, the structure describing several different hydraulic locking apparatus in detail is special
Point, but these hydraulic locking apparatus all exist or structure is complicated or bulky or fault rate is high lacks
Point.
It addition, the flashboard of preventer surges, locking device has been disclosed in many United States Patent (USP)s, including
But be not limited to Patent No. US3242826, US3470793, US3941141, US4052995,
US4076208、US4290577、US4293115、US4601232、US4969390、US4969627、
US5025708、US5575452、US5918851、US7195224、US7798466、US8444109、
Cited patent and/or non-patent literature in the patent document of US8857784 and these patent documents.
Summary of the invention
The technical problem to be solved in the present invention is to overcome in the flashboard locking device of preventer in prior art
Manual locking device and the shortcoming of the locking device that surges, it is provided that the flashboard locking device of a kind of preventer, according to
The difference of rotation lock axle mode, both can be used on manual locking device, it is also possible to be used in the lock that surges
On tight device.
The present invention solves above-mentioned technical problem by following technical proposals: the locking of a kind of preventer fills
Putting, including flashboard, side door, flashboard axis, lock shaft and fluid cylinder, it is inner that described flashboard is arranged on described side door,
Described flashboard axis passes from described side door and is connected with described flashboard, and described fluid cylinder is arranged on outside described side door
End, the end sleeve of described flashboard axis is provided with first piston, and described first piston mates with the inner chamber of described fluid cylinder,
Described flashboard axis is moved axially in described fluid cylinder, and it is internal real that described lock shaft can be partially disposed in flashboard axis
Existing relative motion, its feature is:
Being provided with axial profiled holes inside described flashboard axis, described lock shaft is provided with N (N is natural number)
The locking strip that bar is axial, both can be mutually matched fit；
Described profiled holes be radially provided with the first spiral camber district, described locking strip be radially provided with second
Spiral camber district, both are mutually matched.
It is preferred that described first spiral camber district is the first spiral camber, or it it is the first spiral camber group；
Described second spiral camber district is the second spiral camber, or is the second spiral camber group；
The lead angle in described first spiral camber district or the second spiral camber district is 0 °-23 °.
It is preferred that be provided with multilamellar the first spiral camber district in described profiled holes, described locking strip is in described locking
Forming multilamellar the second spiral camber district on axle, both mate accordingly.
It is preferred that described profiled holes end has guiding circular hole, described lock shaft end to have guide cylinder.
Join it is preferred that the profiled holes of described flashboard axis is the most concavo-convex with the locking strip of described lock shaft
Closing, the semi-cone angle in described profiled holes and locking strip is 1 ° of 25'43 "-90 °.
It is preferred that the flashboard locking device of described preventer also includes actuator, described actuator is arranged
At the other end of described lock shaft, it is used for driving described lock shaft to rotate.
It is preferred that described actuator includes locking fluid cylinder, one end of described lock shaft is with described flashboard axis even
Connecing, the other end of described lock shaft penetrates in described locking fluid cylinder, outside described locking fluid cylinder is with described fluid cylinder
End connects.
It is preferred that described actuator also includes the second piston, the 3rd piston, the first tooth bar, the second tooth bar
And rotation gear, described rotation gear is located in the other end of described lock shaft；
Described first tooth bar and described second tooth bar are engaged in the upper and lower of described rotation gear respectively, and described
Two pistons are fixing with described first tooth bar to be connected, and described 3rd piston is fixing with described second tooth bar to be connected, and
Described second piston and described 3rd piston lay respectively at the both sides of described rotation gear；
Described lock shaft is provided with keyway, and described rotation gear is connected with described lock shaft by key；
Described actuator is contained in described locking fluid cylinder.
It is preferred that described actuator also includes the 4th piston, the 5th piston, connecting rod and swing arm, institute
State swing arm and be arranged on the other end of described lock shaft, and described swing arm is through described connecting rod, described company
The two ends of extension bar are fixing with described 4th piston and described 5th piston respectively to be connected；
Described actuator is contained in described locking fluid cylinder.
It is preferred that described actuator includes that driving gear, driven gear and motor, described driven gear are worn
Being located at the other end of described lock shaft, described driving gear is connected with described motor by connecting shaft, described from
Moving gear engages with described driving gear.
The most progressive effect of the present invention is: the flashboard locking device of preventer of the present invention can only need to rotate
Lock shaft 1/6 circle can be achieved with locking, will be than tradition if relying on manpower direct rotation lock axle to carry out locking
Manual locking device improves efficiency at least Radix Achyranthis Bidentatae, significantly reduces labor intensity and improves locking efficiency；
If rely on hydraulic-driven actuator rotation lock mandrel lock, then can than tradition surge locking device knot
Structure is simpler, volume is smaller and more exquisite, processing cost and fault rate lower.
Accompanying drawing explanation
The above and other feature of the present invention, character and advantage will be by below in conjunction with the accompanying drawings and embodiment
Description and become apparent, the most identical reference represents identical feature all the time, wherein:
Fig. 1 is the structural representation of the embodiment one of the flashboard locking device of preventer of the present invention.Fig. 2 is this
Flashboard axis and the assembling schematic diagram of lock shaft in the embodiment one of the flashboard locking device of invention preventer.
Fig. 3 is the sectional view cut open along line A-A in Fig. 2.
Fig. 4 is the sectional view cut open along line B-B in Fig. 2.
Fig. 5 be the flashboard locking device of preventer of the present invention embodiment one in flashboard axis coordinate with lock shaft
Perspective view.
Fig. 6 be the flashboard locking device of preventer of the present invention embodiment one in flashboard axis coordinate with lock shaft
Front view.(having marked a and b less)
Fig. 7 is the enlarged drawing of a part in Fig. 6.
Fig. 8 is the enlarged drawing of b part in Fig. 6.
Fig. 9 be the flashboard locking device of preventer of the present invention embodiment one in lock shaft successively by unlocked position
Move to the schematic diagram of locked position.
Figure 10 be the flashboard locking device of preventer of the present invention embodiment one in lock shaft join with actuator
The schematic diagram of unlocked position it is positioned at after conjunction.
Figure 11 be the flashboard locking device of preventer of the present invention embodiment one described in flashboard open after be in
The schematic diagram of released state.
Figure 12 be the flashboard locking device of preventer of the present invention embodiment one in lock shaft join with actuator
The schematic diagram of locked position it is positioned at after conjunction.
Figure 13 be the flashboard locking device of preventer of the present invention embodiment one described in flashboard close after be in
The schematic diagram of locking state.
Figure 14 be the flashboard locking device of preventer of the present invention embodiment two in lock shaft join with actuator
The schematic diagram of unlocked position it is positioned at after conjunction.
Figure 15 be the flashboard locking device of preventer of the present invention embodiment two described in flashboard open after be in
The schematic diagram of released state.
Figure 16 be the flashboard locking device of preventer of the present invention embodiment two in lock shaft join with actuator
The schematic diagram of locked position it is positioned at after conjunction.
Figure 17 be the flashboard locking device of preventer of the present invention embodiment two described in flashboard close after be in
The schematic diagram of locking state.
Figure 18 be the flashboard locking device of preventer of the present invention embodiment three in flashboard axis coordinate with lock shaft
Front view.
Figure 19 is the enlarged drawing of a1 part in Figure 18.
Figure 20 is the enlarged drawing of a2 part in Figure 18.
Figure 21 be the flashboard locking device of preventer of the present invention embodiment four in flashboard axis coordinate with lock shaft
Perspective view.
Figure 22 be the flashboard locking device of preventer of the present invention embodiment four in flashboard axis coordinate with lock shaft
Front view one.
Figure 23 is the enlarged drawing of a3 part in Figure 22.
Figure 24 is the enlarged drawing of a4 part in Figure 22.
Figure 25 be the flashboard locking device of preventer of the present invention embodiment four in flashboard axis coordinate with lock shaft
Front view two.
Figure 26 is the enlarged drawing of a5 part in Figure 25.
Figure 27 is the enlarged drawing of a6 part in Figure 25.
Figure 28 be the flashboard locking device of preventer of the present invention embodiment five in flashboard axis coordinate with lock shaft
Front view.
Figure 29 is the enlarged drawing of b1 part in Figure 28.
Figure 30 is the enlarged drawing of b2 part in Figure 28.
Figure 31 be the flashboard locking device of preventer of the present invention embodiment six in flashboard axis coordinate with lock shaft
Front view.
Figure 32 is the enlarged drawing of b3 part in Figure 31.
Figure 33 is the enlarged drawing of b4 part in Figure 31.
Figure 34 be the flashboard locking device of preventer of the present invention embodiment seven in flashboard axis coordinate with lock shaft
Perspective view.
Figure 35 be the flashboard locking device of preventer of the present invention embodiment seven in flashboard axis coordinate with lock shaft
Front view.
Figure 36 is the enlarged drawing of c1 part in Figure 35.
Figure 37 is the enlarged drawing of c2 part in Figure 35.
Figure 38 is the sectional view one cut open along line C-C in Figure 35.
Figure 39 is the sectional view one cut open along line D-D in Figure 35.
Figure 40 is the sectional view two cut open along line C-C in Figure 35.
Figure 41 is the sectional view two cut open along line D-D in Figure 35.
Figure 42 is the sectional view three cut open along line C-C in Figure 35.
Figure 43 is the sectional view three cut open along line D-D in Figure 35.
Figure 44 be the flashboard locking device of preventer of the present invention embodiment eight in flashboard axis coordinate with lock shaft
Front view.
Figure 45 is the enlarged drawing of d1 part in Figure 44.
Figure 46 is the enlarged drawing of d2 part in Figure 44.
Figure 47 be the flashboard locking device of preventer of the present invention embodiment eight in flashboard axis and lock shaft formed
The schematic diagram of two groups of spiral cambers.
Figure 48 be the flashboard locking device of preventer of the present invention embodiment eight in flashboard axis coordinate with lock shaft
Internal structure schematic diagram one.
Figure 49 is the enlarged drawing of e1 part in Figure 48.
Figure 50 is the enlarged drawing of e2 part in Figure 48.
Figure 51 be the flashboard locking device of preventer of the present invention embodiment eight in flashboard axis coordinate with lock shaft
Internal structure schematic diagram two.
Figure 52 is the enlarged drawing of f1 part in Figure 51.
Figure 53 is the enlarged drawing of f2 part in Figure 51.
Figure 54 be the flashboard locking device of preventer of the present invention embodiment nine in flashboard axis coordinate with lock shaft
Perspective view.
Figure 55 be the flashboard locking device of preventer of the present invention embodiment nine in flashboard axis coordinate with lock shaft
Front view.
Figure 56 is the enlarged drawing of g1 part in Figure 55.
Figure 57 is the enlarged drawing of g2 part in Figure 55.
Figure 58 be the flashboard locking device of preventer of the present invention embodiment ten in flashboard axis coordinate with lock shaft
Front view.
Figure 59 is the enlarged drawing of h1 part in Figure 58.
Figure 60 is the enlarged drawing of h2 part in Figure 58.
Figure 61 be the flashboard locking device of preventer of the present invention embodiment 11 in flashboard axis join with lock shaft
The perspective view closed.
Figure 62 be the flashboard locking device of preventer of the present invention embodiment 11 in flashboard axis join with lock shaft
The front view closed.
Figure 63 is the enlarged drawing of I1 part in Figure 62.
Figure 64 is the enlarged drawing of I2 part in Figure 62.
Figure 65 is the sectional view cut open along E-E line in Figure 62.
Figure 66 is the sectional view cut open along F-F line in Figure 62.
Figure 67 be the flashboard locking device of preventer of the present invention embodiment 12 in flashboard axis join with lock shaft
The front view closed.
Figure 68 is the enlarged drawing of J1 part in Figure 67.
Figure 69 is the enlarged drawing of J2 part in Figure 67.
Figure 70 be the flashboard locking device of preventer of the present invention embodiment 13 in flashboard axis join with lock shaft
The front view closed.
Figure 71 is the enlarged drawing of K1 part in Figure 70.
Figure 72 is the enlarged drawing of K2 part in Figure 70.
Figure 73 be the flashboard locking device of preventer of the present invention embodiment 14 in actuator and lock shaft
The axonometric chart coordinated.
Figure 74 be the flashboard locking device of preventer of the present invention embodiment 15 in actuator and lock shaft
The axonometric chart coordinated.
Figure 75 be preventer of the present invention flashboard locking device in the locking of flashboard axis and lock shaft coordinate arrangement group
Close schematic diagram.
Detailed description of the invention
For the above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing to this
Bright detailed description of the invention elaborates.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but the present invention
Other can also be used to be different from alternate manner described here implement, therefore the present invention is not by described below
The restriction of specific embodiment.
Embodiment one:
Fig. 1 is the structural representation of the embodiment one of the flashboard locking device of preventer of the present invention.Such as Fig. 1 institute
Show, the invention discloses the flashboard locking device of a kind of preventer, including preventer 100, housing 110,
Flashboard 120, side door 130 and fluid cylinder 140, flashboard 120 is housed in housing 110, and side door 130 is solid
It is scheduled on the outside of housing 110, is i.e. positioned at the outer end of flashboard 120, flashboard 120 is enclosed in housing 110,
Making the flashboard axis 121 connecting flashboard 120 be passed by side door 130, fluid cylinder 140 is arranged on side door simultaneously
The outer end of 130.
End sleeve at flashboard axis 121 is provided with first piston 160, and first piston 160 is interior with fluid cylinder 140
Chamber is mated so that flashboard axis 121 can realize moving axially in fluid cylinder 140, thus drives flashboard axis 121
Interior intracavity at fluid cylinder 140 moves, and wherein the piston stroke of first piston 160 is L.
Fig. 2 be the flashboard locking device of preventer of the present invention embodiment one in the assembling of flashboard axis and lock shaft
Schematic diagram.Fig. 3 is the sectional view cut open along line A-A in Fig. 2.Fig. 4 is to cut open along line B-B in Fig. 2
Sectional view.
As shown in Figures 2 to 4, in combination with Fig. 1, the flashboard locking device of preventer also includes lock shaft
150 and locking fluid cylinder 170, one end of lock shaft 150 is connected with flashboard axis 121, lock shaft 150 another
One end is passed by locking fluid cylinder 170, and locks fluid cylinder 170 and be connected with the outer end of fluid cylinder 140, to realize lock
Mandrel 150 is relative movement rotational lock in flashboard axis 121.
Offer profiled holes 123 in flashboard axis 121, locking strip 151 be correspondingly set on lock shaft 150,
Locking strip 151 and profiled holes 123 are cooperated locking.The quantity of locking strip 151 can arrange a plurality of,
Such as one, two or three, and locking strip 151 are evenly distributed on lock shaft 150, by lock shaft
The uniform decile of outer surface of 150.As shown in Figures 2 to 4, the present embodiment is arranged on lock shaft 150
Article two, locking strip 151, carries out the quartering by lock shaft 150.
The first spiral camber group 124 it is provided with in profiled holes 123, including spiral curved surface 1241 and 1242,
Locking strip 151 forms the second spiral camber group 152 on lock shaft 150, including spiral curved surface 1521
With 1522, the first spiral camber group 124 is corresponding to the second spiral camber group 152 mates, i.e. spiral is bent
Spiral curved surface 1521 is mated in face 1241 and spiral curved surface 1242 mates spiral curved surface 1522,
Their lead angle coupling is equal.The lead angle of the first spiral camber group 124 is 0 °-23 °, the second spiral shell
The lead angle of rotation curved surface group 152 is 0 °-23 °.First spiral camber group 124 and the second spiral shell in the present embodiment
The lead angle of rotation curved surface group 152 is 0 °, the i.e. first spiral camber group 124 and the second spiral camber group 152
For plane.Especially, the position height of the second spiral camber group 152 of two locking strip 151 formation is mutual
Unanimously, the position height of the first spiral camber group 124 in same profiled holes 123 is the most consistent with each other.
Fig. 5 be the flashboard locking device of preventer of the present invention embodiment one in flashboard axis coordinate with lock shaft
Perspective view.Fig. 6 be the flashboard locking device of preventer of the present invention embodiment one in flashboard axis join with lock shaft
The front view closed.Fig. 7 is the enlarged drawing of a part in Fig. 6.Fig. 8 is the enlarged drawing of b part in Fig. 6.
As shown in Figure 5 to Figure 6, there are guiding circular hole 1231, simultaneously lock shaft 150 end in profiled holes 123 end
Portion has guide cylinder 1511, locking strip 151 ring to be located on the outer surface of lock shaft 150.Wherein, flashboard axis
Guiding degree of depth L1, lock shaft guides length L3 and flashboard axis column part overall length L2.The span of L1
It is 0～(flashboard axis column part overall length L2-piston stroke L)；The span of L3 is 0～(flashboard axis
Column part overall length L2-piston stroke L).Following example the most like that, repeat no more.
As shown in Figure 7 and Figure 8, in the present embodiment, the lead angle of profiled holes 123 is 0 °, locking strip 151
Lead angle be also 0 °, both can be mutually matched locking.
According to said structure, lock shaft 150 contacts coupling with flashboard axis 121 by corresponding lead angle,
Frictional force between the two is relied on to realize self-locking.
Fig. 9 be the flashboard locking device of preventer of the present invention embodiment one in lock shaft successively by unlocked position
Move to the schematic diagram of locked position.As it is shown in figure 9, lock shaft 150 is in the direction of the arrow X by solving lock-bit
Put and move to locked position.When lock shaft 150 is in the unlocked position, lock shaft 150 entirety is retracted within lock
In the profiled holes 123 of board shaft 121.Along with the movement of flashboard axis 121, lock shaft 150 the most relatively from
In flashboard axis 121 protruding, and rotate until lock shaft 150 second spiral camber group and flashboard axis
First spiral camber group coupling locking of the profiled holes 123 of 121.Unlocking movement is the reverse mistake of locking motion
Journey, does not repeats them here.
The flashboard locking device of the preventer of said structure use manpower directly drive lock shaft outer end rotate from
And realize manual locking.
Additionally, on the basis of said structure, the flashboard locking device of the preventer of the present invention can also wrap
Include actuator 180, thus it is tight further to realize hydraulic automatic locking.
Figure 10 be the flashboard locking device of preventer of the present invention embodiment one in lock shaft join with actuator
The schematic diagram of unlocked position it is positioned at after conjunction.Figure 11 is the embodiment of the flashboard locking device of preventer of the present invention
The schematic diagram of released state it is in after flashboard is opened described in one.Figure 12 is the flashboard lock of preventer of the present invention
In the embodiment one of tight device, lock shaft is positioned at the schematic diagram of locked position with actuator after coordinating.Figure 13
It is in locking state after closing for flashboard described in the embodiment one of the flashboard locking device of preventer of the present invention
Schematic diagram.
As shown in Figure 10 to Figure 13, actuator 180 is arranged on the other end of lock shaft 150, mainly uses
In the rotation driving lock shaft 150.Preferably, actuator 180 includes that the second piston the 184, the 3rd is lived
Plug 185, first tooth bar the 182, second tooth bar 183 and rotation gear 181, be located in rotation gear 181
On the other end of lock shaft 150.Rotate the mode using key connecting between gear 181 and lock shaft 150,
Lock shaft 150 arranges keyway 155, in keyway 155, places key 1811 (as shown in Figure 5), logical
Crossing key 1811 makes rotation gear 181 be connected as one with lock shaft 150.Second piston 184 and first
Tooth bar 182 is fixed together, and the 3rd piston 185 is fixed together with the second tooth bar 183, the
One tooth bar 182 engages with rotating gear 181 on rotation gear 181 top, and the second tooth bar is rotating gear 181
Bottom is engaged with rotating gear 181, and the second piston 184 and the 3rd piston 185 lay respectively at rotation gear
The both sides of 181.First tooth bar 182 and the second tooth bar 183 are at the second piston 184 and the 3rd piston 185
Promote rotation gear 181 to rotate clockwise or counterclockwise under drive simultaneously, thus realize locking clockwise
Or counterclockwise unlocking motion.
In actuator 180 entirety is housed in by the locking fluid cylinder 170 of the flashboard locking device of preventer.Lock
Sealing member is had to be sealed on lock shaft 150 in tight fluid cylinder 170, thus by the chamber, pass 142 of fluid cylinder 140 and lock
The unblock chamber 210 of tight fluid cylinder 170 isolates, and locks fluid cylinder 170 end and separately have sealing member to be sealed in locking
In making on axle 150 to unlock chamber 210, hydraulic oil is not leak in air.
As shown in Figure 10 and Figure 11, the flashboard locking device of the preventer in the present embodiment is driven by hydraulic pressure
Dynamic piston 160 is also driven flashboard axis 121 to move by it, thus drives the folding of flashboard 120.Therefore, exist
Relevant oil circuit 131 is offered on side door 130 top, makes pass oil circuit 131 connect with the chamber, pass 142 of fluid cylinder 140.
The same direction, pass oil circuit 131 bottom offered on side door 130 top is parallel offers out oil circuit 141, makes out oil
The beginning to speak of road 141 and fluid cylinder 140 143 connects.Close oil circuit 131 and open oil circuit 141 be two separately run,
Non-interfering independent oil path.On locking fluid cylinder 170, offer locking oil circuit 172 simultaneously and unlock oil circuit
171, unlock oil circuit 171 and connect with opening oil circuit 141, locking oil circuit 172 connects with closing oil circuit 131, and
Connect with the chamber, pass 142 of fluid cylinder 140.When fluid cylinder 140 begin to speak 143 be passed through hydraulic oil from opening oil circuit 141
After, first piston 160 drives flashboard axis 121 to move to the direction away from well head center, flashboard axis 121
Lock shaft 150 part is inserted in wherein by profiled holes 123.Simultaneously because unlock oil circuit 171 and open oil circuit 141
Communicate, so hydraulic oil is by unlocking oil circuit 171 simultaneously also into unblock chamber 210, by the second piston 184
It is pushed into locking fluid cylinder lid 200 with the 3rd piston 185.Now the second piston 184 and the 3rd piston 185 due to
The stop motion by the prevention of end face of locking fluid cylinder lid 200, thus the first tooth bar 182 He cannot be driven
The motion of the second tooth bar 183, and then rotation gear 181 cannot be driven to rotate counterclockwise.When hydraulic oil promotes
During the end contact of first piston 160 and locking fluid cylinder 170, due to locking fluid cylinder 170 end face prevention and
Make first piston 160 stop motion.So after removal hydraulic coupling, at the flashboard locking device of whole preventer
In released state (as shown in figure 11).
As shown in Figure 12 and Figure 13, when the chamber, pass 142 of fluid cylinder 140 is after pass oil circuit 131 is passed through hydraulic oil,
Piston 160 drives flashboard axis 121 to move to well head center position, now the hydraulic oil in locking oil circuit 172
Also simultaneously enter lock chambers 220, be intended to promote the second piston 184 drive the most corresponding with the 3rd piston 185 the
One tooth bar 182 and the second tooth bar 183 move, and make rotation gear by tooth bar with rotating engaging of gear 181
181 have the trend that turns clockwise of lock shaft 150 that drives, but owing to now lock shaft 150 is also in flashboard
Axle 121 is internal, and flashboard axis 121 prevents turning clockwise of lock shaft 150.Lock shaft 150 is cannot
In the case of motion, flashboard axis 121 and lock shaft 150 little by little axial separation, until on lock shaft 150
When second spiral camber group 152 departs from the prevention of flashboard axis 150, lock shaft 150 is in guide cylinder 1511
Guide effect under turn clockwise immediately and corresponding to the first spiral camber group 124 on flashboard axis 150
Mate thus lock.After removal hydraulic coupling, lock shaft 150 continues to maintain the lock status with flashboard axis 121.
Especially, when the angle of spiral curved surface group is not 0 ° (such as embodiment 5), in use
Lock shaft 151 can compensate the mill due to drilling rod and gate rubber core automatically by automatically increasing the angle rotated
Damage the increase of the axial internal clearance caused.
Embodiment two:
The structure of the present embodiment is essentially identical with the structure of embodiment one, and its difference is: the present embodiment
The locking oil circuit offered in the flashboard locking device of middle preventer is different, thus correspondingly by actuator 180
In difference is arranged for the annexation of piston and tooth bar.
Figure 14 be the flashboard locking device of preventer of the present invention embodiment two in lock shaft join with actuator
The schematic diagram of unlocked position it is positioned at after conjunction.Figure 15 is the embodiment of the flashboard locking device of preventer of the present invention
The schematic diagram of released state it is in after flashboard is opened described in two.Figure 16 is the flashboard lock of preventer of the present invention
In the embodiment two of tight device, lock shaft is positioned at the schematic diagram of locked position with actuator after coordinating.Figure 17
It is in locking state after closing for flashboard described in the embodiment two of the flashboard locking device of preventer of the present invention
Schematic diagram.
As shown in figure 14, actuator 180 includes second piston the 184, the 3rd piston the 185, first tooth bar
182, the second tooth bar 183 and rotation gear 181, be located in another of lock shaft 150 by rotation gear 181
On end.Second piston 184 is fixed together with the second tooth bar 183, the 3rd piston 185 and the first tooth
Bar 182 is fixed together, and the first tooth bar 182 is nibbled with rotating gear 181 on rotation gear 181 top
Closing, the second tooth bar 183 engages with rotating gear 181 in rotation gear 181 bottom, and the second piston 184
The both sides rotating gear 181 are laid respectively at the 3rd piston 185.First tooth bar 182 and the second tooth bar 183
Promote rotation gear 181 to carry out up time respectively under the drive of the 3rd piston 185 and the second piston 184 simultaneously
Pin or rotate counterclockwise, thus realize locking clockwise or unlocking motion counterclockwise.
As shown in figure 15, offer relevant oil circuit 131 on side door 130 top, make pass oil circuit 131 and fluid cylinder 140
Chamber, pass 142 connect.The same direction, pass oil circuit 131 bottom offered on side door 130 top is parallel to be offered out
Oil circuit 141, make out oil circuit 141 and fluid cylinder 140 begin to speak 143 connect.Close oil circuit 131 and open oil circuit 141
It is two separately operation, non-interfering independent oil paths.Offer on locking fluid cylinder 170 simultaneously and interconnect mutually
Logical unblock oil circuit 171 and unblock oil circuit 173, unlock oil circuit 173 and connect with opening oil circuit 141, and unlock
The beginning to speak of oil circuit 173 and fluid cylinder 140 143 connects.When fluid cylinder 140 begin to speak 143 lead to from opening oil circuit 141
After entering hydraulic oil, first piston 160 drives flashboard axis 121 to move to away from well head center position, flashboard axis
Lock shaft 150 part is inserted in wherein by the profiled holes 123 of 121.Simultaneously because unlock oil circuit 171 and unlock
Oil circuit 173 communicates with opening oil circuit 141, so hydraulic oil is same by unlocking oil circuit 171 and unblock oil circuit 173
Time also into unblock chamber 210, thus the second tooth bar 183 end being connected with the second piston 184 promotes
To the inner face of the second piston 185, the first tooth bar 182 end being connected with the 3rd piston 185 is pushed away simultaneously
Move the inner face to first piston 184.Now, the second piston 184 and the 3rd piston 185 are due to by right
Side's prevention of inner face and stop motion, thus the first tooth bar 182 and the second tooth bar 183 cannot be driven to move,
And then rotation gear 181 cannot be driven to rotate counterclockwise.When hydraulic oil promotes first piston 160 and locking liquid
During the end contact of cylinder 170, first piston 160 is made to stop fortune due to the prevention of locking fluid cylinder 170 end face
Dynamic.After removal hydraulic coupling, the flashboard locking device of whole preventer is in released state.
As shown in Figure 16 and Figure 17, when the chamber, pass 142 of fluid cylinder 140 is after pass oil circuit 131 is passed through hydraulic oil,
Piston 160 drives flashboard axis 121 to move to well head center position, and in now closing chamber 142, hydraulic oil is also simultaneously
Enter lock chambers 220, be intended to promote the second piston 184 drive the most corresponding with the 3rd piston 185 second tooth bar
183 and first tooth bar 182 move, by tooth bar with rotate engaging of gear 181 make rotation gear 181 have
Drive the trend that turns clockwise of lock shaft 150, but owing to now lock shaft 150 is also in flashboard axis 121
Inside, flashboard axis 121 prevents turning clockwise of lock shaft 150.Lock shaft 150 cannot move
In the case of, flashboard axis 121 and lock shaft 150 little by little axial separation, until the second spiral shell on lock shaft 150
When rotation curved surface group 152 departs from the prevention of flashboard axis 150, lock shaft 150 is in the guiding of guide cylinder 1511
Turn clockwise immediately under effect and corresponding to the first spiral camber group 124 on flashboard axis 150 mate from
And lock.After removal hydraulic coupling, lock shaft 150 continues to maintain the lock status with flashboard axis 121.Especially,
When the angle of spiral curved surface group is not 0 ° (such as embodiment 5), in use lock shaft 151
Automatically can compensate owing to the abrasion of drilling rod and gate rubber core is caused by automatically increasing the angle rotated
The increase of axial internal clearance.
Embodiment three:
Figure 18 be the flashboard locking device of preventer of the present invention embodiment three in flashboard axis coordinate with lock shaft
Front view.Figure 19 is the enlarged drawing of a1 part in Figure 18.Figure 20 is the amplification of a2 part in Figure 18
Figure.
As shown in Figure 18 to Figure 20, the structure of the present embodiment is essentially identical with the structure of embodiment one, and it is not
It is with part: the lead angle of the first spiral camber group 124 of the profiled holes 123 in flashboard axis 121
Being 0 °, the lead angle of the second spiral camber group 152 of the locking strip 151 of same lock shaft 150 is 0 °.
Especially, the position height of the second spiral camber group 152 of two locking strip 151 formation is inconsistent.
Embodiment four:
Figure 21 be the flashboard locking device of preventer of the present invention embodiment four in flashboard axis coordinate with lock shaft
Perspective view.Figure 22 be the flashboard locking device of preventer of the present invention embodiment four in flashboard axis and locking
The front view one that axle coordinates.Figure 23 is the enlarged drawing of a3 part in Figure 22.Figure 24 is a4 portion in Figure 22
The enlarged drawing divided.
As shown in FIG. 21 to 24, the structure of the present embodiment is essentially identical with the structure of embodiment one, and it is not
It is with part: the position height of the second spiral camber group 152 of two locking strip 151 formation is consistent with each other,
The position height of the first spiral camber group 124 in same profiled holes 123 is the most consistent with each other.Lock shaft 151
End shape be outer male conical, be inner concave conical under the guiding circular hole of flashboard axis 121, semi-cone angle θ 1, θ 2
Span is 1 ° of 25'43 "-90 °.Flashboard axis 121 and lock shaft 150 be weight at the semi-cone angle of correspondent equal
Merge locking.
Figure 25 be the flashboard locking device of preventer of the present invention embodiment four in flashboard axis coordinate with lock shaft
Front view two.Figure 26 is the enlarged drawing of a5 part in Figure 25.Figure 27 be in Figure 25 a6 part put
Big figure.
As shown in Figure 25 to Figure 27, in like manner it is also possible that arrange: the second of two locking strip 151 formation
The position height of spiral camber group 152 is inconsistent.The position of the first spiral camber group 124 in profiled holes 123
Degree of setting high is the most inconsistent.The end shape of lock shaft 151 is outer male conical simultaneously, the guiding of flashboard axis 121
It it is inner concave conical under circular hole.Specifically, lock shaft semi-cone angle θ 3 span is 1 ° of 25'43 "-90 °, half
Taper angle theta 4 span is 1 ° of 25'43 "-90 °.Flashboard axis 121 and lock shaft 150 are at the half cone of correspondent equal
Overlap at angle and lock.
Embodiment five:
Figure 28 be the flashboard locking device of preventer of the present invention embodiment five in flashboard axis coordinate with lock shaft
Front view.Figure 29 is the enlarged drawing of b1 part in Figure 28.Figure 30 is the amplification of b2 part in Figure 28
Figure.
As shown in Figure 28 to Figure 30, the structure of the present embodiment is essentially identical with the structure of embodiment one, and it is not
It is with part: lead angle θ 5 of the first spiral camber group 124 of the profiled holes 123 in flashboard axis 121
Be 5 °, the second spiral camber group 152 of the locking strip 151 of same lock shaft 150 lead angle θ 5
It it is 5 °.It is provided with two locking strips 151 on lock shaft 150, by the outer round surface four of lock shaft 150 herein
Decile.Especially, the position height mutual of the second spiral camber group 152 of two locking strip 151 formation
Causing, the position height of the first spiral camber group 124 in same profiled holes 123 is the most consistent with each other.Similar real
Execute the angle classification of semi-cone angle θ 1 in example 4 and semi-cone angle θ 2, overlap also at the semi-cone angle of correspondent equal
The situation of locking, can also be converted into the spiral at correspondent equal in the case of embodiment 5 has lead angle
Overlap at lift angle and lock and implement equally, not repeating them here.
Embodiment six:
Figure 31 be the flashboard locking device of preventer of the present invention embodiment six in flashboard axis coordinate with lock shaft
Front view.Figure 32 is the enlarged drawing of b3 part in Figure 31.Figure 33 is the amplification of b4 part in Figure 31
Figure.
As shown in Figure 31 to Figure 33, the structure of the present embodiment is essentially identical with the structure of embodiment one, and it is not
It is with part: lead angle θ 6 of the first spiral camber group 124 of the profiled holes 123 in flashboard axis 121
Being 5 °, lead angle θ 6 of the second spiral camber group 152 of the locking strip 151 of same lock shaft 150 is 5 °.
It is provided with two locking strips 151 on lock shaft 150, by the outer round surface quartering of lock shaft 150 herein.
Especially, the position height of the second spiral camber group 152 of two locking strip 151 formation is inconsistent.Preferably
Second spiral camber group 152 of each locking strip 151 of ground is positioned on a helix, these locking positions
Sideline just overlaps on helix.The position height of the first spiral camber group 124 in same profiled holes 123
The most inconsistent.Preferably the first spiral camber group 124 of profiled holes 123 is positioned on a helix, these
The sideline at locking position just overlaps on helix.
Embodiment seven:
Figure 34 be the flashboard locking device of preventer of the present invention embodiment seven in flashboard axis coordinate with lock shaft
Perspective view.Figure 35 be the flashboard locking device of preventer of the present invention embodiment seven in flashboard axis and locking
The front view that axle coordinates.Figure 36 is the enlarged drawing of c1 part in Figure 35.Figure 37 is c2 part in Figure 35
Enlarged drawing.
As shown in Figure 34 to Figure 37, the structure of the present embodiment is essentially identical with the structure of embodiment one, and it is not
It is with part: a locking strip 151 is set on lock shaft 150, by the outer round surface two of lock shaft 150
Decile.The lead angle of the first spiral camber 124 of the profiled holes 123 in flashboard axis 121 is 0 ° and (is
Plane), the lead angle of the second spiral camber 152 of the locking strip 151 of same lock shaft 150 be 0 ° (i.e.
For plane).
Figure 38 is the sectional view one cut open along line C-C in Figure 35.Figure 39 is to cut open along line D-D in Figure 35
Sectional view one.As shown in Figure 38 and Figure 39, in flashboard axis 121, the section of profiled holes 123 is semicircular ring
Shape, correspondingly the section of the locking strip 151 of lock shaft 150 is corresponding semi-circular shape, it is simple to both are smooth
Ground fit.
Figure 40 is the sectional view two cut open along line C-C in Figure 35.Figure 41 is to cut open along line D-D in Figure 35
Sectional view two.As shown in Figure 40 and Figure 41, profiled holes 123 and lock shaft 150 in flashboard axis 121
Locking strip 151 may be arranged as following structure: in flashboard axis 121, the top of the section of profiled holes 123 has
The angle [alpha] 1 of evagination and bottom is had to have the angle beta 1 of evagination.The correspondingly locking strip 151 of lock shaft 150
The top of section there is the angle [alpha] 2 of evagination and bottom has the angle beta 2 of evagination.Here angle [alpha] 1 can
Taking 0 °-30 °, the most desirable 0 °-30 ° of angle beta 1, both angles can combination in any.Same desirable 0 °-30 ° of angle [alpha] 2,
The most desirable 0 °-30 ° of angle beta 2, both angles can combination in any.But the value of angle [alpha] 1 and angle [alpha] 2 must
Must be identical, angle beta 1 must be identical with angle beta 2 value.
Figure 42 is the sectional view three cut open along line C-C in Figure 35.Figure 43 is to cut open along line D-D in Figure 35
Sectional view three.As shown in Figure 42 and Figure 43, profiled holes 123 and lock shaft 150 in flashboard axis 121
Locking strip 151 may be arranged as following structure: in flashboard axis 121, the top of the section of profiled holes 123 has
The angle [alpha] 3 of indent and bottom is had to have the angle beta 3 of indent.The correspondingly locking strip 151 of lock shaft 150
The top of section there is the angle [alpha] 4 of indent and bottom has the angle beta 4 of indent.Here angle [alpha] 3 can
Taking 0 °-30 °, the most desirable 0 °-30 ° of angle beta 3, both angles can combination in any.Same desirable 0 °-30 ° of angle [alpha] 4,
The most desirable 0 °-30 ° of angle beta 4, both angles can combination in any.But the value of angle [alpha] 3 and angle [alpha] 4 must
Must be identical, angle beta 3 must be identical with angle beta 4 value.
Embodiment eight:
Figure 44 be the flashboard locking device of preventer of the present invention embodiment eight in flashboard axis coordinate with lock shaft
Front view.Figure 45 is the enlarged drawing of d1 part in Figure 44.Figure 46 is the amplification of d2 part in Figure 44
Figure.
As shown in Figure 44 to Figure 46, the structure of the present embodiment is essentially identical with the structure of embodiment seven, and it is not
It is with part: lead angle θ 7 of the first spiral camber 124 of the profiled holes 123 in flashboard axis 121
Being 3 °, lead angle θ 7 of the second spiral camber 152 of the locking strip 151 of same lock shaft 150 is 3 °.
Figure 47 be the flashboard locking device of preventer of the present invention embodiment eight in flashboard axis and lock shaft formed
The schematic diagram of two helical layer curved surfaces.As shown in figure 47, the locking between flashboard axis 121 and lock shaft 150
Can i.e. form two helical layer curved surfaces in the way of using two contact surface lockings, the width of contact surface 156 is less than
The width of spiral camber groove 125, thus realize locking, its model of action and one by both couplings
Locking contact surface is identical, arranges locking contact surface so that lock more reliable more.Certainly, above-mentioned contact surface
Locking mode can also apply to other lead angles or multi-layer helical curved regions, and it equally realizes above-mentioned
Function.
Figure 48 be the flashboard locking device of preventer of the present invention embodiment eight in flashboard axis coordinate with lock shaft
Internal structure schematic diagram one.Figure 49 is the enlarged drawing of e1 part in Figure 48.Figure 50 is e2 in Figure 48
The enlarged drawing of part.As shown in Figure 48 to Figure 50, when above-mentioned lead angle θ 7 is 3 °, its lock shaft 150
Could be arranged to convex.Specifically, in flashboard axis 121 first spiral camber 124 of profiled holes 123 with
The internal face angle theta 8 of profiled holes 123 is 1 ° of 25'43 "-90 °.On lock shaft 150 the second of locking strip 151
Spiral camber 152 is 1 ° of 25'43 with the outer surface angle theta 8 of locking strip 151 "-90 °.
Figure 51 be the flashboard locking device of preventer of the present invention embodiment eight in flashboard axis coordinate with lock shaft
Internal structure schematic diagram two.Figure 52 is the enlarged drawing of f1 part in Figure 51.Figure 53 is f2 in Figure 51
The enlarged drawing of part.As shown in Figure 51 to Figure 53, when above-mentioned lead angle θ 7 is 3 °, its lock shaft 150
Could be arranged to matrix.Specifically, in flashboard axis 121 first spiral camber 124 of profiled holes 123 with
The internal face angle theta 9 of profiled holes 123 is 1 ° of 25'43 "-90 °.On lock shaft 150 the second of locking strip 151
Spiral camber 152 is 1 ° of 25'43 with the outer surface angle theta 9 of locking strip 151 "-90 °.
As shown in Figure 48 and Figure 51, it can equally be well applied to arrange a plurality of locking strip 151 on lock shaft 150
Situation, two locking strips 151 are such as set by lock shaft 150 quartering, or three locking strips 151 are set
By lock shaft 150 6 decile.θ 8, θ 9 span are 1 ° of 25'43 "-90 °.
Embodiment nine:
Figure 54 be the flashboard locking device of preventer of the present invention embodiment nine in flashboard axis coordinate with lock shaft
Perspective view.Figure 55 be the flashboard locking device of preventer of the present invention embodiment nine in flashboard axis and locking
The front view that axle coordinates.Figure 56 is the enlarged drawing of g1 part in Figure 55.Figure 57 is g2 part in Figure 55
Enlarged drawing.
As shown in Figure 54 to Figure 57, the structure of the present embodiment is essentially identical with the structure of embodiment seven, and it is not
It is with it: lead angle θ 10 of the first spiral camber 124 of the profiled holes 123 in flashboard axis 121 is
17 °, lead angle θ 10 of the second spiral camber 152 of the locking strip 151 of same lock shaft 150 is 17 °.
Embodiment ten:
Figure 58 be the flashboard locking device of preventer of the present invention embodiment ten in flashboard axis coordinate with lock shaft
Front view.Figure 59 is the enlarged drawing of h1 part in Figure 58.Figure 60 is the amplification of h2 part in Figure 58
Figure.
As shown in Figure 58 to Figure 60, the structure of the present embodiment is essentially identical with the structure of embodiment seven, and it is not
It is with it: lead angle θ 11 of the first spiral camber 124 of the profiled holes 123 in flashboard axis 121 is
23 °, lead angle θ 11 of the second spiral camber 152 of the locking strip 151 of same lock shaft 150 is 23 °.
The lead angle arranging certain angle in all embodiments both can realize self-locking, it is also possible at rotation process
The motive force that middle generation is axial, the most just can compensate automatically owing to the abrasion of drilling rod and gate rubber core is caused
The increase of axial internal clearance, and the excessive phenomenon of unblock being possible to prevent in releasing process.With embodiment nine phase
Ratio, in the case of can guarantee that self-locking equally, owing to the increase of lead angle will cause at identical rotational angle
Under conditions of produce axial internal clearance more more than embodiment nine.
Embodiment 11:
Figure 61 be the flashboard locking device of preventer of the present invention embodiment 11 in flashboard axis join with lock shaft
The perspective view closed.Figure 62 be the flashboard locking device of preventer of the present invention embodiment 11 in flashboard axis with
The front view that lock shaft coordinates.Figure 63 is the enlarged drawing of I1 part in Figure 62.Figure 64 is I2 in Figure 62
The enlarged drawing of part.
As shown in Figure 61 to Figure 64, the structure of the present embodiment is essentially identical with the structure of embodiment one, and it is not
It is with part: three locking strips 151 are set on lock shaft 150, by the outer round surface six of lock shaft 150
Decile.The lead angle of the first spiral camber group 124 of the profiled holes 123 in flashboard axis 121 be 0 ° (i.e.
For plane), the lead angle of the second spiral camber group 152 of the locking strip 151 of same lock shaft 150 is
0 ° (being plane).
Figure 65 is the sectional view cut open along E-E line in Figure 62.Figure 66 is to cut open along F-F line in Figure 62
Sectional view.As shown in Figure 65 and Figure 66, locking strip 151 is by lock shaft 150 6 decile, flashboard axis 121
Interior profiled holes 123 is in shape correspondingly, it is simple to both fits smoothly.
Embodiment 12:
Figure 67 be the flashboard locking device of preventer of the present invention embodiment 12 in flashboard axis join with lock shaft
The front view closed.Figure 68 is the enlarged drawing of J1 part in Figure 67.Figure 69 be in Figure 67 J2 part put
Big figure.
As shown in Figure 67 to Figure 69, the structure of the present embodiment is essentially identical with the structure of embodiment 11, its
Difference is: the first spiral camber group 124 of the profiled holes 123 in flashboard axis 121 has spiral liter
Angle θ 12 is 7 °, and the second spiral camber group 152 of the locking strip 151 of same lock shaft 150 has spiral liter
Angle θ 12 is 7 °.It is provided with three locking strips 151 on lock shaft 150, by the cylindrical of lock shaft 150 herein
Surface six decile.Especially, the position height of the second spiral camber group 152 of three locking strip 151 formation
Consistent with each other, the position height of the first spiral camber group 124 in same profiled holes 123 is the most consistent with each other.
Embodiment 13:
Figure 70 be the flashboard locking device of preventer of the present invention embodiment 13 in flashboard axis join with lock shaft
The front view closed.Figure 71 is the enlarged drawing of K1 part in Figure 70.Figure 72 be in Figure 70 K2 part put
Big figure.
As shown in Figure 70 to Figure 72, the structure of the present embodiment is essentially identical with the structure of embodiment 11, its
Difference is: the first spiral camber group 124 of the profiled holes 123 in flashboard axis 121 has spiral liter
Angle θ 13 is 7 °, and the second spiral camber group 152 of the locking strip 151 of same lock shaft 150 has spiral liter
Angle θ 13 is 7 °.It is provided with three locking strips 151 on lock shaft 150, by the cylindrical of lock shaft 150 herein
Surface six decile.Especially, the position height of the second spiral camber group 152 of three locking strip 151 formation
Inconsistent.Preferably the second spiral camber group 152 of each locking strip 151 is positioned on a helix, this
The sideline at a little locking positions just overlaps on helix.The first spiral camber group 124 in same profiled holes 123
Position height the most inconsistent.Preferably the first spiral camber group 124 of each profiled holes 123 is positioned at one
On helix, the sideline at these locking positions just overlaps on helix.
Embodiment 14:
Figure 73 be the flashboard locking device of preventer of the present invention embodiment 14 in actuator and lock shaft
The axonometric chart coordinated.
As shown in Figure 73, the structure of the present embodiment is essentially identical with the structure of embodiment one, and its difference exists
In: actuator 180 includes the 4th piston the 300, the 5th piston 400, connecting rod 186 and swing arm 187.
Swing arm 187 is arranged on the other end of lock shaft 150, and swing arm 187 is through connecting rod 186, even
The two ends of extension bar 186 are fixed be connected with the 4th pistons 300 and the 5th piston 400 respectively.
The 4th piston 300 and the 5th piston 400 is promoted, by the 4th piston 300 by the hydraulic coupling of switch oil circuit
Promote connecting rod 186 with the 5th piston 400, then driven swing arm 187 by connecting rod 186, then by swinging
Bar 187 drives lock shaft 150 counterclockwise or to turn clockwise.Figure 73 shows in the hydraulic coupling closing oil circuit
Promote the 4th piston 300 and the 5th piston 400, and then promote swing arm 187 to turn clockwise, thus reach
The locked position arrived.In like manner, unlocked position is then by opening the hydraulic coupling of oil circuit promotion the 4th piston 300 He
5th piston 400 adverse movement, thus promote lock shaft 150 to rotate unblock counterclockwise.
Embodiment 15:
Figure 74 be the flashboard locking device of preventer of the present invention embodiment 15 in actuator and lock shaft
The axonometric chart coordinated.As shown in Figure 74, the structure of the present embodiment is essentially identical with the structure of embodiment one,
Its difference is: performs structure 180 and includes driving gear 188, driven gear 189 and motor 190,
Driven gear 189 is located in the other end of lock shaft 150, and driving gear 188 is by connecting shaft 191 and electricity
Machine 190 connects, and driven gear 189 engages with driving gear 188 simultaneously.
Motor 190 can from charged pool can also external power supply, by open oil circuit action of hydraulic force touch
Motor 190 rotates forward (the most counterclockwise) switch, connecting shaft 191 drive driving gear 188 to revolve counterclockwise
Turning thus drive driven gear 189 dextrorotation then locking, during unblock, the hydraulic coupling by closing oil circuit is touched
Motor 190 inverts (the most clockwise) switch, connecting shaft 191 drive driving gear 188 dextrorotation
Turn, thus drive driven gear 189 to rotate counterclockwise and unlock.
Descriptions based on the various embodiments described above, the quantity of locking strip in the flashboard locking device of preventer of the present invention
Can be designed as required, its corresponding lead angle can complete self-locking locking in 0 °-23 °.Spiral shell
The change of rotation lift angle is conducive to amount of movement to be in the axial direction adjusted.Lead angle is big, and the most identical corner is led
The axial internal clearance causing flashboard axis is just big, the axial internal clearance caused for the abrasion of drilling rod and gate rubber core
The compensation of increase the most.Therefore the quantity of locking strip and the angle of lead angle thereof be not by above-described embodiment
Limit, can allocate according to the actual requirements.
It addition, above-mentioned second piston the 184, the 3rd piston the 185, the 4th piston 300 and the 5th piston 400
Cross section all can use circle, Long Circle or ellipse, and its shape is not restricted to the described embodiments.
Figure 75 be preventer of the present invention flashboard locking device in the locking of flashboard axis and lock shaft coordinate arrangement group
Close schematic diagram.As shown in Figure 75, wherein O1 represent locking strip by lock shaft decile, O2 represents have spiral shell
Rotation lift angle, O3 represents that lead angle is 0 °, and O4 represents the highly consistent of lead angle, and O5 represents spiral
The height of lift angle is inconsistent, and O6 represents that flashboard axis guides circular hole and has the guiding degree of depth, and O7 represents locking spindle guide
Having guiding length to cylinder, O8 represents axially facing surface angle (i.e. semi-cone angle), and O9 represents that radial direction connects
Contacting surface quantity, O10 represents that flashboard axis lock shaft is concavo-convex.Above-mentioned O1-O10 is the lock of preventer of the present invention
In plate locking device between flashboard axis with lock shaft locking coordinates the technical characteristic that can limit, except O2 with
Outside O3, O4 and O5 can not be mutually combined, other all can carry out combination in any and form various embodiment.
Such as, O1, O3 and O5 combine, and represent that the locking between described flashboard axis and lock shaft coordinates by lock shaft
After any decile, the lead angle of flashboard axis and lock shaft is 0 °, and the height of lead angle is inconsistent
Situation.For another example, O1, O2, O4, O6, O7, O8, O9 and O10 combine, and represent described flashboard axis
With the locking between lock shaft coordinates by lock shaft by after any decile, flashboard axis and lock shaft have certain
Lead angle, and lead angle is highly consistent, and flashboard axis guides circular hole and has certain guiding degree of depth,
Lock shaft guide cylinder has certain guiding length, and the axially facing surface of flashboard axis and lock shaft has certain
The radial direction of angle, flashboard axis and lock shaft has the contact surface of a number of contact surface, flashboard axis and lock shaft
Shape can be the most concavo-convex situation.
As can be seen here, these schemes can reach the effect of the present invention, not by above-mentioned illustrated embodiment
Limit.The present invention locks friction tight permutation and combination form varied between flashboard axis and lock shaft, it is impossible to
Enumerated one by one by embodiment.Therefore, as shown in Figure 75, those skilled in the art should be understood that various groups
The mode closed, does not repeats them here.
In sum, the flashboard locking device of preventer of the present invention can only need rotation lock axle 1/6 to enclose with regard to energy
Realizing locking, will improve than traditional manual locking device if relying on manpower direct rotation lock axle to carry out locking
Efficiency at least Radix Achyranthis Bidentatae, significantly reduces labor intensity and improves locking efficiency；If dependence hydraulic-driven
Actuator rotation lock mandrel is locked, then can surge that locking device structure is simpler than tradition, volume more
Small and exquisite, processing cost and fault rate are lower.
Although the foregoing describing the detailed description of the invention of the present invention, it will be appreciated by those of skill in the art that
These are merely illustrative of, and protection scope of the present invention is defined by the appended claims.This area
These embodiments, on the premise of without departing substantially from the principle of the present invention and essence, can be made many by technical staff
Plant change or amendment, but these changes and amendment each fall within protection scope of the present invention.
Claims (10)
1. a flashboard locking device for preventer, including flashboard, side door, flashboard axis, lock shaft and fluid cylinder,
It is inner that described flashboard is arranged on described side door, and described flashboard axis passes with described flashboard even from described side door
Connecing, described fluid cylinder is arranged on the outer end of described side door, and the end sleeve of described flashboard axis is provided with first piston, institute
State first piston to mate with the inner chamber of described fluid cylinder so that described flashboard axis moves axially in described fluid cylinder,
Described lock shaft can be partially disposed in inside flashboard axis and realize relative motion, it is characterised in that:
Being provided with axial profiled holes inside described flashboard axis, described lock shaft is provided with N (N is natural number)
The locking strip that bar is axial, both can mutually mate by fit；
Described profiled holes be radially provided with the first spiral camber district, described locking strip be radially provided with second
Spiral camber district, both corresponding contact couplings.
2. the flashboard locking device of preventer as claimed in claim 1, it is characterised in that described first spiral shell
Rotation curved regions is the first spiral camber, or is the first spiral camber group；
Described second spiral camber district is the second spiral camber, or is the second spiral camber group；
The lead angle in described first spiral camber district or the second spiral camber district is 0 °-23 °.
3. the flashboard locking device of preventer as claimed in claim 2, it is characterised in that described profiled holes
Inside being provided with multilamellar the first spiral camber district, described locking strip forms multilamellar the second helical curve on described lock shaft
Face district, both corresponding contact couplings.
4. the flashboard locking device of preventer as claimed in claim 1, it is characterised in that described profiled holes
End has guiding circular hole, described lock shaft end to have guide cylinder.
5. the flashboard locking device of preventer as claimed in claim 1, it is characterised in that described flashboard axis
Locking strip mutually male-female engagement, described profiled holes and the locking strip in the axial direction of profiled holes and described lock shaft
On semi-cone angle be 1 ° of 25'43 "-90 °.
6. the flashboard locking device of preventer as claimed in claim 1, it is characterised in that described preventer
Flashboard locking device also include that actuator, described actuator are arranged on the other end of described lock shaft,
For driving described lock shaft to rotate.
7. actuator as claimed in claim 6, it is characterised in that described actuator includes locking liquid
Cylinder, one end of described lock shaft is connected with described flashboard axis, and the other end of described lock shaft penetrates described locking
In fluid cylinder, described locking fluid cylinder is connected with the outer end of described fluid cylinder.
8. actuator as claimed in claim 7, it is characterised in that described actuator also includes second
Piston, the 3rd piston, the first tooth bar, the second tooth bar and rotation gear, described rotation gear is located in described
The other end of lock shaft；
Described first tooth bar and described second tooth bar are engaged in the upper and lower of described rotation gear respectively, and described
Two pistons are fixing with described first tooth bar to be connected, and described 3rd piston is fixing with described second tooth bar to be connected, or
Second piston described in person is fixing with described second tooth bar to be connected, described 3rd piston and the fixing connection of the first tooth bar,
And described second piston and described 3rd piston lay respectively at the both sides of described rotation gear；
Described lock shaft is provided with keyway, and described rotation gear is connected with described lock shaft by key；
Described actuator is contained in described locking fluid cylinder.
9. actuator as claimed in claim 7, it is characterised in that described actuator also includes the 4th
Piston, the 5th piston, connecting rod and swing arm, described swing arm is arranged on the other end of described lock shaft,
And described swing arm is through described connecting rod, the two ends of described connecting rod respectively with described 4th piston and described
5th piston is fixing to be connected；
Described actuator is contained in described locking fluid cylinder.
10. actuator as claimed in claim 6, it is characterised in that described actuator includes actively
Gear, driven gear and motor, described driven gear is located in the other end of described lock shaft, described active
Gear is connected with described motor by connecting shaft, and described driven gear engages with described 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 true CN106194097A (en) | 2016-12-07 |
| CN106194097B 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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065301A (en) * | 2020-09-03 | 2020-12-11 | 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 |
| CN115095294A (en) * | 2022-07-08 | 2022-09-23 | 安徽大鼎智能装备有限公司 | Locking device capable of quickly replacing flashboard |
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| 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 |
| US20080265188A1 (en) * | 2007-04-27 | 2008-10-30 | Frank Benjamin Springett | Ram locking blowout preventer |
| 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 |
-
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 (6)
| 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 |
| US20080265188A1 (en) * | 2007-04-27 | 2008-10-30 | Frank Benjamin Springett | Ram locking blowout preventer |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065301A (en) * | 2020-09-03 | 2020-12-11 | 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 |
| CN115095294A (en) * | 2022-07-08 | 2022-09-23 | 安徽大鼎智能装备有限公司 | Locking device capable of quickly replacing flashboard |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016173439A1 (en) | 2016-11-03 |
| CN106194097B (en) | 2018-11-06 |
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