CN104595561A - Spring type hydraulic driver for flat gate valve - Google Patents
Spring type hydraulic driver for flat gate valve Download PDFInfo
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- CN104595561A CN104595561A CN201510046347.4A CN201510046347A CN104595561A CN 104595561 A CN104595561 A CN 104595561A CN 201510046347 A CN201510046347 A CN 201510046347A CN 104595561 A CN104595561 A CN 104595561A
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- fixed seat
- valve
- valve rod
- connecting rod
- driver
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Details Of Valves (AREA)
Abstract
The invention provides a spring type hydraulic driver for a flat gate valve. The driver comprises a driver shell, an upper fixed seat and al lower fixed seat, wherein a piston is arranged in the upper fixed seat and is connected with an ejection rod; a pull rod, a valve rod connecting rod and a spring are also arranged in the driver shell; the pull rod is abutted against the piston; the valve rod connecting rod is connected with the pull rod and is in threaded connection with a valve rod of the flat gate valve; the external diameter of the valve rod connecting rod is greater than that of the valve rod to form a step on the lower end face of the valve rod connecting rod; the lower fixed seat is provided with an internal threaded hole which runs through up and down; an adjusting nut which can move up and down to adjust is in threaded connection with the internal threaded hole; a through hole for the valve rod to movably penetrate is formed in the adjusting nut; the upper end face of the adjusting nut and the step are correspondingly arranged to limit the stroke for downward movement of the valve rod adjusting rod. The driver integrates the various advantages such as adjustable stroke, integral mounting, high stability in mounting and reliability in work; compared with the prior art, the driver has the advantage that the debugging and mounting of the driver are more convenient and faster.
Description
Technical field
The present invention relates to a kind of plate valve single-acting (spring) hydraulic unit driver, especially a kind of stroke be adjustable, can the spring hydraulic unit driver that attaches together of complete machine and plate valve.
Background technique
Single-acting hydraulic driver is mainly used in the equipment such as production tree safety valve, choke manifold, gathering line, be a kind ofly integrate conventional, driving force is large, run the control gear of the plurality of advantages such as uniform and stable.But also there are many deficiencies and urgently improvements in this quasi-driver existing, wherein assemble not firm, of a great variety, complete machine cannot be realized and the problem such as valve assembles, stroke adjustment difficulty more outstanding.Specifically, mainly there is following technical problem urgently to be resolved hurrily in current existing plate valve spring-loaded drive.
(1) in prior art, the stroke stricti jurise of this quasi-driver says it is nonadjustable, and the bore (piston diameter) of driver needed for many times supporting with it plate valve, spring pressure, Connecting format and specification etc. are all identical, be stroke difference and be more or less the same (several millimeters or tens millimeters).The solution of prior art needs several stroke just to do several driver exactly, and the material of this several driver and processing cost are substantially identical, because add driver kind, the cost cause design, purchase, managing there is certain increase.In addition, non-adjustable due to driver stroke, technician is when the practical set stroke of regulating valve, and mean of calculating, method and selection can tail off, and sometimes also can be forced to add additional cost because of increase pad in some joint during assembling, part is done over again etc.
(2) in prior art, driver docks by means of only screw thread with valve, is furnished with Cock screw anti-rotation.And owing to being threaded into uncertainty a little, for making the hydraulic power oil circuit interface on driver align with the runner hole of valve, usual screw thread can not screw, only by Cock screw anti-rotation.Because space and body element size limit, Cock screw diameter can not be very large, directly causes its anti-rotation effect extremely limited; When driver suppress or carry cause screw thread load change time, Cock screw can become loosening, and its anti-rotating function is had a greatly reduced quality, and now driver and valve are shaking or can produce relative rotation under External Force Acting, directly cause the change of valve stroke, cause adverse consequences.
(3) in prior art, valve rod connecting rod in the valve rod of plate valve and driver is threaded connection, and be furnished with Cock screw anti-rotation, similar with the situation of the Cock screw anti-rotation emphasized in (2), load change suffered by screw thread when application and tests between valve rod and valve rod connecting rod, cause Cock screw to loosen, can relatively rotate between valve rod and valve rod connecting rod, also can impact the stroke of driver.In addition, many times driver can overallly be purchased or dock with valve after assembling, and valve rod fixed by application Cock screw and valve rod connecting rod carrys out anti-rotation, just must dismantle driver, causes the duplication of labour.
Summary of the invention
In view of this, in order to overcome the defect of prior art, first object of the present invention is to provide the adjustable plate valve spring hydraulic unit driver of a kind of stroke.
In order to achieve the above object, the invention provides a kind of plate valve spring hydraulic unit driver, the lower fixed seat comprising actuator housing, be fixed on the upper fixed seat of the upper end of described actuator housing, be fixed on the lower end of described actuator housing, the piston that can move up and down is provided with in fixed seat, described piston is connected with the upwards movable push rod stretching out fixed seat, hydraulic pressure cavity is formed between described piston and fixed seat, the side of fixed seat also offers the hydraulic power oil circuit interface being communicated with described hydraulic pressure cavity, it is characterized in that:
Also be provided with the upper end pull bar inconsistent with described piston, the valve rod connecting rod be fixedly connected with described pull bar in described actuator housing, make described pull bar and described valve rod connecting rod have the Compress Spring of the trend of moving upward, described valve rod connecting rod and the valve rod of plate valve are threaded to drive described valve rod to move up and down mutually, and the external diameter of described valve rod connecting rod is greater than described valve rod and forms step in the lower end surface of described valve rod connecting rod;
Described lower fixed seat offers the interior threaded hole run through up and down, be threaded in described interior threaded hole and can move up and down the adjusting nut of adjustment, there is in described adjusting nut the perforation supplying the valve handle activity of plate valve to pass, the stroke that the upper-end surface setting corresponding with described step of described adjusting nut moves downward to limit described valve rod adjustable lever, when described valve rod connecting rod moves downward on earth, the upper-end surface of described step and described adjusting nut is inconsistent.
Spring-loaded drive of the present invention adopts the design of adjusting nut, can when not dismantling driver from the stroke of outside adjusting driver.And, spring hydraulic unit driver of the present invention can complete machine and plate valve attach together, only the valve rod of plate valve need be linked together with valve rod connecting rod through after the perforation of adjusting nut during installation, fixing, very convenient after on the valve gap that lower fixed seat is enclosed within plate valve.
Owing to adopting the design of range-adjustable, the production specification of spring hydraulic unit driver can be unified, again according to the stroke of actual conditions adjusting driver during installation, reach general object.
Preferably, in order to be more convenient for operating adjusting nut in the outside of driver, described adjusting nut is at least provided with the operation unit operating the rotation of described adjusting nut on lower end surface.In one embodiment, adjusting nut is laterally zygomorphic shape, and now its upper and lower both ends of the surface are equipped with operation unit, reaches two and to make no distinction of rank the effect that can be threaded in the interior threaded hole of lower fixed seat.
Wherein, in the present embodiment, described operation unit is the handle hole of indent.Handle hole on upper-end surface or lower end surface can adopt along the paired design of same radial direction, uniform force when operation adjusting nut is rotated vertically.
Further preferably, the bottom of described actuator housing is socketed in the periphery of described lower fixed seat, the side opening of described lower fixed seat is provided with side tapped hole, described actuator housing is by being connected to bolt in the tapped hole of side and described lower fixed seat is fixed together, the inner of described side tapped hole offers the interior clamp screw pit being communicated with described interior threaded hole and described side tapped hole, and be threaded in described interior clamp screw pit Cock screw in described adjusting nut and described lower fixed seat being locked.Adopt such design, the object of adjusting nut anti-rotation can be realized, and make interior Cock screw be hidden in the inner of side tapped hole, prevent misoperation.
Behind aligning runner hole, driver complete machine object is in relative rotation prevented in order to what solve hydraulic power oil circuit interface on driver, the present invention adopts following design further: described valve gap is provided with outside thread, described lower fixed seat is threaded with the valve gap of plate valve, described plate valve spring hydraulic unit driver also comprises the locking nut of described lower fixed seat and described valve gap being locked, and described locking nut is arranged on the below of described lower fixed seat and links together with the outside thread of described valve gap.Adopt locking nut and tight lower fixed seat, avoid because hydraulic circuit structure needs to aim at runner hole and the defect that can not screw that is threaded, make to be threaded no matter screw thread is threaded to where can firmly be fixed together between lower fixed seat with valve gap.
Further, described lower fixed seat at least offers the outer clamp screw pit be oppositely arranged along same radial line for a pair in the side with described valve gap threaded connection place, described outer clamp screw pit is provided with the outer Cock screw described lower fixed seat and described valve gap locked; Described locking nut also at least offers a pair along the same outer clamp screw pit diametrically arranged, described outer clamp screw pit is provided with the outer Cock screw described locking nut and described valve gap locked.Adopt outer Cock screw to make again to be fixed together more closely between lower fixed seat and valve gap, between locking nut and valve gap, play the effect of dual anti-rotation, and improve the anti-seismic performance of screw thread combination.
Cock screw anti-rotation is adopted to need the defect of repetition dismounting driver complete machine in order to solve valve rod connecting rod in driver, the present invention adopts following design: described pull bar is provided with spring seat, described lower fixed seat is provided with leading truck, and described Compress Spring is connected between described spring seat and described leading truck; Described valve rod connecting rod is cylindrical bar, its outer circumferential face to be pruned vertically formation guide surface, described leading truck offers the anti-rotating hole suitable with the shape of cross section of described valve rod connecting rod, described valve rod connecting rod only axially can be located in described anti-rotating hole along self up and down.By the anti-rotating hole on leading truck and the guiding slip effect between valve rod connecting rod, valve rod is directly connected with valve rod connecting rod coaxial threaded, valve rod connecting rod only axially can be moved up and down along self, avoid unnecessary rotation, and do not need to take driver complete machine again apart and twist Cock screw anti-rotation, convenient.
Further, in order to easy to process, described anti-rotating hole is circular hole, and the side of described circular hole is fixed with the slide block matched with described guide surface.
In one embodiment, described slide block is fixed by screws on described leading truck.
In order to make the Compress Spring in driver easier for installation, described pull bar has the long bolt to downward-extension, described valve rod connecting rod has the threaded connection hole matched with described long bolt, when described Compress Spring is in free elongation state, the lower end of described long bolt is threaded mutually with the upper end of described threaded connection hole.After adopting such design, tightened gradually by screw thread by the long bolt of pull bar and the threaded connection hole of valve rod connecting rod, just more effortlessly spring constantly can be compressed to the decrement of design.
Due to visible, adopt plate valve spring hydraulic unit driver of the present invention, efficiently solve the problems existed in prior art, have the following advantages:
(1) the present invention makes the stroke of driver become adjustable, and it is also adjustable after final assembly, can the kind of specification driver to a great extent, make original several driver unified for a kind of by the adjustment of stroke, coordinate the overall stroke of regulating valve in addition by fine setting driver stroke, make valve quickly through latus rectum inspection;
(2) the present invention makes the hydraulic power oil circuit interface direction of driver become easy adjustment, makes driver be connected with valve more firm, reliable simultaneously, and debugging, easy for installation, quick;
(3) the present invention makes driver can not be subject to mechanical vibration, load change and cause its travel to change, and makes thread looseness in prior art, relatively rotates the hidden danger forming displacement and become and can not also not be present in;
(4) in prior art, this quasi-driver generally can only assemble along valve from bottom to top together, even if what have minority independently to assemble has generally also all worn the valve part such as valve gap and valve rod, make the kind of driver, uniform specification runs into very burden, the present invention is just solving this problem, make driver independent of valve, attach together with valve again after can independently assembling driver, also can assemble together.
Accompanying drawing explanation
Fig. 1 is the axial cross-sectional views of plate valve spring hydraulic unit driver of the present invention.
Fig. 2 is the K portion enlarged diagram in Fig. 1.
Fig. 3 is that A-A in Fig. 1 is to generalized section.
In accompanying drawing: 1-push rod, 2-upper fixed seat, 3-plug, 4-back-up ring, 5-push rod gland, 6-actuator housing, 7-pull bar, 8-spring seat, 9-valve rod, 10-adjusting nut, 101-handle hole, 11-hexagon head bolt, 12-locking nut, 13-guidance tape, 14-valve gap, 15-filler, 16-outer Cock screw, 17-Gland, 18-lower fixed seat, 181-interior threaded hole, 182-side tapped hole, 183-interior clamp screw pit, 184-outer clamp screw pit, 19-interior Cock screw, 20-spring washer, 21-leading truck, 22-baffler, 23-screw, 24-slide block, 25-valve rod connecting rod, 251-step, 252-guide surface, 253-threaded connection hole, 26-Compress Spring, 27-dust ring, 28-hydraulic seal, 29-guidance tape, 30-piston, 31-Cock screw, 32-hydraulic seal, 33-guidance tape, 34-dust ring, 35-guard shield, 36-dust-proof cover.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is described in detail.
Refer to Fig. 1, valve gap 14, valve rod 19, Gland 17, guidance tape 13 and these parts of filler 15(that driver of the present invention does not comprise on plate valve are classified as valve part, the object of this design reduces driver kind, because many times variant the but institute of valve gap, valve rod size to join driver identical, as being classified as driver portion, therefore driver kind can increase), the object showing these parts in Fig. 1 sets forth mounting type of the present invention, structural feature and running principle more intuitively in order to more clear.
A kind of plate valve spring hydraulic unit driver of the present embodiment, the lower fixed seat 18 that agent structure comprises actuator housing 6, is fixed on the upper fixed seat 2 of the upper end of described actuator housing 6, is fixed on the lower end of described actuator housing 6.The top of actuator housing 6 is threaded with upper fixed seat 2 and is fixed together by Cock screw 31, and socket lower fixed seat 18 in the bottom of actuator housing 6 is fixed together by hexagon head bolt 11.Actuator housing 6 is provided with baffler 22, for additional air in housing of draining during spring-compressed.
Wherein, the piston 30 that can move up and down is provided with in upper fixed seat 2, piston 30 is connected with the upwards movable push rod 1 stretching out fixed seat 2, hydraulic pressure cavity is formed between described piston 30 and fixed seat 2, the side of upper fixed seat 2 also offers the hydraulic power oil circuit interface being communicated with described hydraulic pressure cavity, during non-connecting fluid potential source, hydraulic power oil circuit interface is provided with plug 3.
Push rod 1 can move along with piston 30 and upwards eject or retracted downward, is used to refer to the working state of driver.Be connected by hydraulic seal 32 between push rod 1 with upper fixed seat 2, be also provided with guidance tape 33 and dust ring 34 between push rod 1 and upper fixed seat 2, guidance tape 33 starts antiwear effect.The part cover that upper fixed seat 2 is exposed in push rod upper end has guard shield 35 and dust-proof cover 36.
In the present embodiment, piston 30 is independently free style piston, and the mutual transmission of pressure of pull bar 7 plane contact of itself and below is to realize the running of driver.Be provided with guidance tape 29, hydraulic seal 28 and dust ring 27 between the bottom of piston 30 and upper fixed seat 2, guidance tape 29 provide protection against wear.
Hydraulic pressure cavity is made up of jointly piston 30, upper fixed seat 2, hydraulic seal 28 and hydraulic seal 32.During work, need plug 3 to take off, hydraulic power oil circuit interface is connected with the pipe coupling of external control cabinet, hydraulic oil is pressed in hydraulic pressure cavity.Piston 30 straight line motion downwards can be promoted under the effect of hydraulic fluid pressure.
Also be provided with the upper end pull bar 7 inconsistent with piston 30, the valve rod connecting rod 25 be fixedly connected with pull bar 7 in actuator housing 6, make pull bar 7 and valve rod connecting rod 25 have the Compress Spring 26 of the trend of moving upward, valve rod connecting rod 25 and the valve rod 9 of plate valve are threaded to drive described valve rod 9 to move up and down mutually, and the external diameter of described valve rod connecting rod 25 is greater than described valve rod 9 and forms step 251 in the lower end surface of described valve rod connecting rod 25.
Described lower fixed seat 18 offers the interior threaded hole 181 run through up and down, be threaded in interior threaded hole 181 and can move up and down the adjusting nut 10 of adjustment, there is the perforation that valve rod 9 activity for plate valve is passed, the stroke that the upper-end surface setting corresponding with step 251 of adjusting nut 10 moves downward to limit valve rod adjustable lever 25 in adjusting nut 10.Distance between the lower end surface of valve rod connecting rod 25 and the upper-end surface of adjusting nut 10 is exactly the stroke of driver.When valve rod connecting rod 25 moves downward on earth, step 251 is inconsistent with the upper-end surface of adjusting nut 10.Therefore, by the position of up-down adjustment adjusting nut 10, the stroke of this driver adjustable.
The working procedure of the present embodiment is: when hydraulic oil press-in hydraulic pressure cavity, when piston 30 starts to do straight line motion downwards, a part of power is passed to Compress Spring 26 by pull bar 7, spring seat 8 by piston 30, and now Compress Spring 26 starts to be compressed; Another part power is passed to valve rod 9 by pull bar 7, valve rod connecting rod 25 by piston 30 simultaneously, and now valve starts to open.After valve rod connecting rod 25 lower end surface and step 251 contact with the upper-end surface of adjusting nut 10, under the effect of adjusting nut 10 opposite force, the stop of valve rod connecting rod 25, and then impel piston 30 stop, Compress Spring 26 stopping compression, now driver stroke reaches lower limit, and valve is opened completely; When the hydraulic oil in hydraulic pressure cavity starts backflow, after hydraulic pressure cavity pressure drop, the piston 30 of driver under the acting in conjunction such as buoyancy of the recoil of spring power transmitted by pull bar 7 and valve rod 9 upwards do straight line motion, when the sealing surface of valve rod 9 and the sealing surface of valve gap 14 are fitted, driver is braked under the effect of valve rod 9, valve closing.
For the ease of operation, adjusting nut 10 is equipped with the handle hole 101 operating adjusting nut 10 rotation in upper and lower both ends of the surface, as shown in Figure 1.
As shown in Figure 2, easily align with the runner hole of hydraulic power to make the hydraulic oil interface on the driver of the present embodiment, and the installation of whole driver and valve is more firm, the present embodiment adopts following design: the bottom of actuator housing 6 is socketed in the periphery of lower fixed seat 18, the side opening of lower fixed seat 18 is provided with side tapped hole 182, actuator housing 6 is fixed together with lower fixed seat 18 by the hexagon head bolt 11 be connected in side tapped hole 182, the inner of side tapped hole 182 offers the interior clamp screw pit 183 being communicated with interior threaded hole 181 and described side tapped hole 182, be threaded in interior clamp screw pit 183 Cock screw 19 in adjusting nut 10 and lower fixed seat 18 being locked.Utilize the outside thread on the valve gap 14 of plate valve, lower fixed seat 18 is threaded with the valve gap 14 of plate valve, the present embodiment also comprises the locking nut 12 of lower fixed seat 18 and valve gap 14 being locked, and locking nut 12 is arranged on the below of lower fixed seat 18 and links together with the outside thread of valve gap 14.Lower fixed seat 18 at least offers the outer clamp screw pit 184 be oppositely arranged along same radial line for a pair in the side with valve gap 14 threaded connection place, outer clamp screw pit 184 is provided with the outer Cock screw 16 lower fixed seat 18 and valve gap 4 locked; Locking nut 12 also at least offers a pair along the same outer clamp screw pit 121 diametrically arranged, outer clamp screw pit 121 is provided with the outer Cock screw 16 locking nut 12 and valve gap 14 locked.
First locking nut 12 is screwed in the shoulder that valve gap 14 also fits in valve gap 14 as far as possible during assembling, afterwards driver complete machine is screwed in valve gap 14 by lower fixed seat 18, when being screwed into designed depth, the hydraulic power oil circuit interface of driver is aligned in valve flowing channel hole (due to the uncertainty of screw thread process starting point, sometimes need to continue backspin or convolution several angle could align oil circuit interface, now select smaller therebetween); Following counterrotating locking nut 12, until lower fixed seat 18 and locking nut 12 are also tight, to make to screw between screw thread the effect of pressure that (i.e. between the screw thread of lower fixed seat 18 and valve gap 14, between locking nut 12 and the screw thread of valve gap 14) added and frictional force, even if when work loads has a variation, this frictional force still exists; Lower fixed seat 18 and locking nut 12 arrange outer Cock screw 16 respectively, not only increases the anti-seismic performance that reliability also improves screw thread combination simultaneously.
Therefore, the hydraulic power oil circuit interface of the present embodiment can align easily with runner hole, more make the secure and reliable connection of driver and valve, and structure is simple, part is easy to process simultaneously, and debugging is simple, convenient, fast with installation.
Pull bar 7 is provided with spring seat 8, and lower fixed seat 18 is provided with leading truck 21, and Compress Spring 26 is connected between spring seat 8 and leading truck 21.The hollow cylindrical of leading truck 21 outward extending platform for lower end has, the platform that lower end extends can the lower end of limit compression spring 26.In order to realize the anti-rotation of valve rod connecting rod, valve rod connecting rod 25 is cylindrical bar, its outer circumferential face to be pruned vertically formation guide surface 252, leading truck 21 offers the anti-rotating hole suitable with the shape of cross section of valve rod connecting rod 25, and described valve rod connecting rod 25 only axially can be located in described anti-rotating hole along self up and down.In the present embodiment, described anti-rotating hole is circular hole, and the side of described circular hole is fixed with the slide block 24 matched with guide surface 252 by screw 23, slide block 24 is fixed on the upper end of leading truck 21, is positioned at the side of circular hole, as shown in Figure 3.After adopting such design, leading truck 21 can prevent valve rod connecting rod 25 from rotating diametrically, can lead to it in the axial direction again.Due to anti-rotation and the leading role of this leading truck 21, can prevent from relatively rotating with valve rod 9 owing to vibrating the valve rod connecting rod 25 caused, and then cause the stroke of complete machine valve to change.
In accompanying drawing 1, the state of Compress Spring 26 is installment state, and installment state will compress a segment distance relative to free state, and namely in Fig. 1, Compress Spring 26 has certain decrement.For convenience of the columniform long bolt 71 in installation the design of Compress Spring 26, pull bar 7 bottom is designed to downward-extension, valve rod connecting rod 25 upper design is darker threaded connection hole 253, it is emphasized that need utilize valve rod or similar frock that valve rod connecting rod 25 is fixed on shown position during assembling, when Compress Spring 26 is in free elongation state, the long bolt 71 of pull bar 7 fully can contact with the upper end of the threaded connection hole 253 of valve rod connecting rod 25 bottom and can screw, and carrys out Compress Spring reach installment state by the power that screws of the two screw thread.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and implement according to this; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (10)
1. a plate valve spring hydraulic unit driver, comprise actuator housing (6), be fixed on the upper fixed seat (2) of the upper end of described actuator housing (6), be fixed on the lower fixed seat (18) of the lower end of described actuator housing (6), the piston (30) that can move up and down is provided with in fixed seat (2), the push rod (1) of fixed seat (2) is stretched out in upwards activity that described piston (30) is connected with, hydraulic pressure cavity is formed between described piston (30) and fixed seat (2), the side of fixed seat (2) also offers the hydraulic power oil circuit interface being communicated with described hydraulic pressure cavity, it is characterized in that:
Upper end and the inconsistent pull bar (7) of described piston (30) is also provided with in described actuator housing (6), the valve rod connecting rod (25) be fixedly connected with described pull bar (7), described pull bar (7) and described valve rod connecting rod (25) is made to have the Compress Spring (26) of the trend of moving upward, described valve rod connecting rod (25) and the valve rod (9) of plate valve are threaded to drive described valve rod (9) to move up and down mutually, the external diameter of described valve rod connecting rod (25) is greater than described valve rod (9) and forms step (251) in the lower end surface of described valve rod connecting rod (25),
Described lower fixed seat (18) offers the interior threaded hole (181) run through up and down, be threaded in described interior threaded hole (181) adjusting nut (10) that can move up and down adjustment, there is in described adjusting nut (10) perforation supplying valve rod (9) activity of plate valve to pass, the stroke that the upper-end surface of described adjusting nut (10) moves downward to limit described valve rod adjustable lever (25) with described step (251) corresponding setting, when described valve rod connecting rod (25) moves downward on earth, described step (251) is inconsistent with the upper-end surface of described adjusting nut (10).
2. a kind of plate valve spring hydraulic unit driver according to claim 1, is characterized in that: described adjusting nut (10) is at least provided with to operate the operation unit that described adjusting nut (10) rotates on lower end surface.
3. a kind of plate valve spring hydraulic unit driver according to claim 2, is characterized in that: described operation unit is the handle hole (101) of indent.
4. a kind of plate valve spring hydraulic unit driver according to claim 1, it is characterized in that: the bottom of described actuator housing (6) is socketed in the periphery of described lower fixed seat (18), the side opening of described lower fixed seat (18) is provided with side tapped hole (182), described actuator housing (6) is fixed together with described lower fixed seat (18) by the bolt (11) be connected in side tapped hole (182), the inner of described side tapped hole (182) offers the interior clamp screw pit (183) being communicated with described interior threaded hole (181) and described side tapped hole (182), be threaded in described interior clamp screw pit (183) the interior Cock screw (19) described adjusting nut (10) and described lower fixed seat (18) locked.
5. a kind of plate valve spring hydraulic unit driver according to claim 1 or 4, it is characterized in that: described valve gap (14) is provided with outside thread, described lower fixed seat (18) is threaded with the valve gap (14) of plate valve, described plate valve spring hydraulic unit driver also comprises the locking nut (12) of described lower fixed seat (18) and described valve gap (14) being locked, and described locking nut (12) is arranged on the below of described lower fixed seat (18) and links together with the outside thread of described valve gap (14).
6. a kind of plate valve spring hydraulic unit driver according to claim 5, it is characterized in that: described lower fixed seat (18) at least offers a pair outer clamp screw pit (184) be oppositely arranged along same radial line in the side with described valve gap (14) threaded connection place, described outer clamp screw pit (184) is provided with the outer Cock screw (16) described lower fixed seat (18) and described valve gap (4) locked; Described locking nut (12) also at least offers a pair along the same outer clamp screw pit (121) diametrically arranged, described outer clamp screw pit (121) is provided with the outer Cock screw (16) described locking nut (12) and described valve gap (14) locked.
7. a kind of plate valve spring hydraulic unit driver according to claim 1, it is characterized in that: described pull bar (7) is provided with spring seat (8), described lower fixed seat (18) is provided with leading truck (21), and described Compress Spring (26) is connected between described spring seat (8) and described leading truck (21); Described valve rod connecting rod (25) is cylindrical bar, its outer circumferential face to be pruned vertically formation guide surface (252), described leading truck (21) offers the anti-rotating hole suitable with the shape of cross section of described valve rod connecting rod (25), described valve rod connecting rod (25) only axially can be located in described anti-rotating hole along self up and down.
8. a kind of plate valve spring hydraulic unit driver according to claim 7, is characterized in that: described anti-rotating hole is circular hole, and the side of described circular hole is fixed with the slide block (24) matched with described guide surface (252).
9. a kind of plate valve spring hydraulic unit driver according to claim 7, is characterized in that: described slide block (24) is fixed by screws on described leading truck (21).
10. a kind of plate valve spring hydraulic unit driver according to claim 1, it is characterized in that: described pull bar (7) has the long bolt (71) to downward-extension, described valve rod connecting rod (25) has the threaded connection hole (253) matched with described long bolt (71), when described Compress Spring (26) is in free elongation state, the lower end of described long bolt (71) can be threaded mutually with the upper end of described threaded connection hole (253).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510046347.4A CN104595561B (en) | 2015-01-29 | 2015-01-29 | Flat gate valve spring hydraulic unit driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510046347.4A CN104595561B (en) | 2015-01-29 | 2015-01-29 | Flat gate valve spring hydraulic unit driver |
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| Publication Number | Publication Date |
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| CN104595561A true CN104595561A (en) | 2015-05-06 |
| CN104595561B CN104595561B (en) | 2016-10-05 |
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| CN201510046347.4A Active CN104595561B (en) | 2015-01-29 | 2015-01-29 | Flat gate valve spring hydraulic unit driver |
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| CN204437433U (en) * | 2015-01-29 | 2015-07-01 | 纽威石油设备（苏州）有限公司 | Plate valve spring hydraulic unit driver |
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| US6352239B1 (en) * | 1999-03-25 | 2002-03-05 | Fmc Corporation | Gate valve actuator override mechanism |
| CN201339752Y (en) * | 2009-01-20 | 2009-11-04 | 苏州道森压力控制有限公司 | Novel valve hydraulic actuator |
| CN201902656U (en) * | 2010-11-23 | 2011-07-20 | 宝鸡石油机械有限责任公司 | Hydraulic driving device of flat plate gate valve under seawater |
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| CN103527835A (en) * | 2013-10-25 | 2014-01-22 | 苏州道森钻采设备股份有限公司 | Hydraulic-driven underwater gate valve capable of being driven by ROV |
| CN204437433U (en) * | 2015-01-29 | 2015-07-01 | 纽威石油设备（苏州）有限公司 | Plate valve spring hydraulic unit driver |
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| CN104595561B (en) | 2016-10-05 |
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