CN106641411A - Quick-closing valve - Google Patents
Quick-closing valve Download PDFInfo
- Publication number
- CN106641411A CN106641411A CN201610976467.9A CN201610976467A CN106641411A CN 106641411 A CN106641411 A CN 106641411A CN 201610976467 A CN201610976467 A CN 201610976467A CN 106641411 A CN106641411 A CN 106641411A
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- CN
- China
- Prior art keywords
- quick
- closing valve
- driving
- connecting rod
- oil cylinder
- 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
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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
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/38—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side
- F16K31/383—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a piston
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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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
- F16K31/44—Mechanical actuating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a quick-closing valve and belongs to the technical field of steam valves. The quick-closing valve comprises a quick-closing valve seat, a quick-closing valve body, a quick-closing valve element, a drive oil cylinder, a control mechanism and a control oil cylinder. The quick-closing valve seat is provided with a steaming opening. The quick-closing valve body can be arranged on the steaming opening in an opening and closing manner. The two ends of the quick-closing valve element are fixedly connected with the quick-closing valve body and a drive piston of the drive oil cylinder correspondingly. The end, away from the drive piston, of the drive oil cylinder is provided with an installation hole, and a second oil discharging port is formed in the side wall of the installation hole. The control mechanism comprises a sliding rod, a first connecting rod and a second connecting rod. The sliding rod is movably arranged in the installation hole, and an oil inlet channel capable of communicating with the second oil discharging port is arranged in the sliding rod. The first connecting rod is connected to the sliding rod in a lapping manner and is rotationally connected with one end of the second connecting rod. The second connecting rod is connected with the control oil cylinder through an elastic part. A control piston rod of the control oil cylinder is separably arranged at the end portion of the sliding rod. According to the quick-closing valve, the problem of insufficient operation safety caused by automatic opening of the quick-closing valve due to electronic control misoperation can be avoided.
Description
Technical field
The present invention relates to steam valve technical field, more particularly to a kind of quick-closing valve.
Background technology
Heat energy in steam and pressure energy can be converted into mechanical energy by steam turbines, so as to drive on rotary machine
For example drive the equipment such as oil pump, generating set, screw.Steam turbines is widely used on ship, the steam turbines
The a set of quick-closing valve of outfit is generally required, for turning off the flow of steam, needs quick closedown to block when inlet valve group
When entering vapour of steam turbines, can make steam turbines quit work rapidly by closing quick-closing valve.
During the present invention is realized, inventor has found that prior art at least has problems with：
In prior art, the driving means for controlling quick-closing valve shut-off belong to power type, by remotely control, are vulnerable to remote
The faulty operation of Cheng Duan causes bungle, and processing safety is not enough.
The content of the invention
Because belonging to power type and causing quick-closing valve for the driving means that control quick-closing valve shut-off in order to solve prior art
The not enough problem of processing safety, embodiments provide a kind of quick-closing valve.The technical scheme is as follows：
A kind of quick-closing valve of the embodiment of the present invention, the quick-closing valve includes quick-closing valve seat, quick-closing valve door, quick-closing valve core and drive
Dynamic oil cylinder, the quick-closing valve seat tool has air intake, air port and a steam drain being sequentially communicated, the quick-closing valve door can folding set
Put on the air port, one end of the quick-closing valve core is fixedly connected on the quick-closing valve door, the quick-closing valve core it is another
The side wall of the quick-closing valve seat is stretched out in one end,
The driving oil cylinder is fixedly mounted on the side wall of the quick-closing valve seat, is provided with driving in the driving oil cylinder and is lived
Plug, the driving piston will be divided into driving epicoele and drives cavity of resorption, the side wall of the driving cavity of resorption to set inside the driving oil cylinder
Be equipped with the first oil-in and the first oil drain out, the other end of the quick-closing valve core is stretched into the driving cavity of resorption, and with it is described
Piston is driven to be fixedly connected, it is described to drive the side wall of epicoele to be provided with the second oil-in；
There is an installing hole end that oil cylinder is driven away from the quick-closing valve seat along the driving oil cylinder is axially arranged, described
The second oil drain out is offered on the hole wall of installing hole；
The quick-closing valve also includes controlling organization and control cylinder；
The controlling organization includes slide bar, first connecting rod and second connecting rod, and the slide bar is movably arranged on the installing hole
It is interior, oil drain passage is provided with the slide bar, one end of the oil drain passage communicates with the inside of the driving epicoele, the row
The other end of oily passage is operationally communicated with second oil drain out, and the first connecting rod is axially displaceably inserted into described
Drive oil cylinder away from the end of the quick-closing valve seat, the moving direction of the first connecting rod is in folder with the axis direction of the slide bar
Angle, one end of the first connecting rod is overlapped on the slide bar on one end of the driving piston, the first connecting rod it is another
One end is hinged with one end of the second connecting rod, is hinged in the middle part of the second connecting rod in the control cylinder, described second
Dynamic clamping head and quiet clamping head is provided between connecting rod and the control cylinder；
The control cylinder is arranged on the driving oil cylinder, and control piston rod is provided with the control cylinder, described
The telescopic end of control piston rod is detachably provided in the slide bar on one end of the driving piston.
Further, the slide bar includes the set gradually to the outside of the driving oil cylinder from inside the driving oil cylinder
One bar portion and the second bar portion, the diameter with diameter greater than first bar portion of second bar portion, the installing hole is included from institute
State and drive the first installing hole and the second installing hole set gradually to the outside of the driving oil cylinder inside oil cylinder, described first installs
The internal diameter in hole is consistent with the external diameter of first bar portion, the external diameter phase of the internal diameter of second installing hole and second bar portion
Unanimously.When slide bar is moved in installing hole, the second bar portion can limit the moving displacement of slide bar.
Further, the end of second bar portion is provided with positive stop lug boss, and the diameter of the positive stop lug boss is less than institute
The diameter of the second bar portion is stated, one end of the first connecting rod is detachably provided in the sidepiece of the positive stop lug boss.Positive stop lug boss
Effect be limit first connecting rod moving displacement.
Further, one end of the second connecting rod is provided with mounting hole, the length direction of the mounting hole and described
The length direction of two connecting rods is identical, and one end of the second connecting rod is cut with scissors by the mounting hole with the other end of the first connecting rod
Connect.
Preferably, it is provided with the first compression elastic piece in the rodless cavity of the control cylinder.
Further, the second compression elastic piece, the second compression bullet are provided with the driving epicoele of the driving oil cylinder
Property part two ends respectively with it is described driving piston and the driving oil cylinder be connected away from the end of the quick-closing valve seat.By control
The active force of second compression elastic piece of pressure and setting of in-oil cylinder hydraulic oil is driven, rests on can driving piston specified
Position, this can just make the aperture of quick-closing valve door adjustable.
Further, it is described to drive oil cylinder to be in match with the second compression elastic piece external diameter at least with one section
Column.The stylolitic part can be supported to the second compression elastic piece, prevent the second compression elastic piece because of gravity, impulsive force etc.
Effect produces eccentric.
Further, the driving piston is provided with projection, the driving oil cylinder towards on the end face of the quick-closing valve seat
There is the groove corresponding with the projection near the end of the quick-closing valve seat, first oil drain out is opened in the driving oil
On one end of the quick-closing valve seat, first oil drain out is correspondingly arranged and communicates cylinder with the groove, the first row
Aperture of the aperture of hydraulic fluid port less than the groove.Piston mobile drive quick-closing valve core movement in oil cylinder is driven is driven, fast pass is made
During valve closing, hydraulic oil can be discharged from the first oil drain out, and projection can be moved to groove direction, and then reduce the first oil drain out
Dredge oil amount, the movement to driving piston slows down, and then can reduce the closing velocity of quick-closing valve door, and to reach speed is reduced
The impact that closing valve is produced when closed with quick-closing valve seat, it is to avoid produce noise, and increase the service life of valve group.
Further, the driving oil cylinder is provided with by quick-closing valve core activity in one end of the quick-closing valve seat
The pilot sleeve for passing through, has lubrication gap between the pilot sleeve and the quick-closing valve core.Drive the hydraulic oil in oil cylinder
During the lubrication gap can be penetrated into, movement of the quick-closing valve core in pilot sleeve is lubricated, prevents bite phenomenon.
Preferably, the pilot sleeve passes the driving oil cylinder and is provided near the position of one end of the quick-closing valve seat
Drain tap.The drain tap is used to reclaim the hydraulic oil in lubrication gap, while hydraulic oil at a lubrication gap can also be reduced
Pressure.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
The quick-closing valve seat tool of the quick-closing valve that the embodiment of the present invention is provided has air intake, air port and the steam discharge being sequentially communicated
Mouthful, so, steam can be entered from the air intake of quick-closing valve, Jing after air port, then be discharged from steam drain；Due to quick-closing valve door
Can folding be arranged on air port, the break-make on control vapour road can be reached by controlling the unlatching of quick-closing valve door, due to speed pass
The two ends of valve element respectively with quick-closing valve door and drive the driving piston of oil cylinder to be fixedly connected, therefore, the unlatching of quick-closing valve door can be with
Controlled by driving the driving piston driving quick-closing valve core movement of oil cylinder.
Because the side wall for driving the driving cavity of resorption of oil cylinder is provided with the first oil-in and the first oil drain out, the side of epicoele is driven
Wall is provided with the second oil-in, and the end for driving oil cylinder is provided with installing hole, and the second oil drain out is offered on the hole wall of installing hole,
By the first oil-in to driving cavity of resorption to send force feed, the oil drain outs of hydraulic oil Jing second for driving epicoele are discharged, and drive piston
Quick-closing valve core, quick-closing valve door can be driven to move to the direction away from air port, quick-closing valve is opened；Conversely, passing through the second oil-feed
Mouth to driving epicoele to send force feed, discharge by the oil drain outs of hydraulic oil Jing first for driving cavity of resorption, drives speed to close by driving piston
Valve element, quick-closing valve door are moved towards the direction of air port, and quick-closing valve is closed.
Because the quick-closing valve of the embodiment of the present invention also includes controlling organization and control cylinder, the slide bar activity of controlling organization sets
Put in installing hole, oil drain passage is provided with slide bar, one end of oil drain passage communicates with the inside for driving cylinder body, oil drain passage
The other end operationally communicate with the second oil drain out, therefore, drive epicoele the oil drain outs of hydraulic oil Jing second convey when, need by
Oil drain passage is communicated with the second oil drain out, that is, need to move the slide bar of controlling organization in installing hole.
Because one end of the first connecting rod of the controlling organization of the embodiment of the present invention is overlapped on slide bar away from the one of driving piston
On end, therefore, in slide bar before installing hole is moved, one end of first connecting rod need to be departed from from slide bar.
Because first connecting rod is axially displaceably inserted into the end for driving oil cylinder away from quick-closing valve seat, and first connecting rod
One end is overlapped on slide bar on the one end for driving piston, and the other end of first connecting rod is hinged with one end of second connecting rod, and second
It is hinged in the middle part of connecting rod in control cylinder, dynamic clamping head and quiet clamping head is provided between second connecting rod and control cylinder, elder generation is needed during operation
Apply a revolving force for overcoming dynamic clamping head and quiet clamping head active force to second connecting rod manually, make second connecting rod rotate, drive the
One connecting rod departs from from slide bar, and slide bar can be moved in the presence of the hydraulic oil for driving epicoele, until the oil extraction in slide bar
Passage is communicated with the second oil drain out, and now, the telescopic end of the control piston rod of control cylinder is withstood on the end face of slide bar, anti-on-slip
Bar is further moved.
When quick-closing valve is closed, the telescopic end work of the control piston rod of control cylinder makes slide bar move in installing hole, makes
Oil drain passage and the second oil drain out disconnect, and under the reset response of dynamic clamping head and quiet clamping head, second connecting rod rotates, and then force the
One connecting rod to slide bar end move, lock slide bar, prevent slide bar in installation cavity slidably, make slide bar oil drain passage and
Second oil drain out is communicated, so that quick-closing valve is automatically turned on or closed.
Therefore, the quick-closing valve in the embodiment of the present invention before activation, the second connecting rod being both needed in manual action controlling organization,
First connecting rod is departed from from slide bar so that the second oil drain out can with drive epicoele communicate, quick-closing valve after closing, control machine
Second connecting rod in structure can automatically reset, and first connecting rod is moved to slide bar end, lock slide bar, make the second oil extraction
Mouth disconnects with epicoele is driven, and to prevent because automatically controlled maloperation causes quick-closing valve to automatically turn on, the processing safety for causing is not enough to ask
Topic.
Description of the drawings
Technical scheme in order to be illustrated more clearly that the embodiment of the present invention, below will be to making needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, can be obtaining other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the structural representation of quick-closing valve provided in an embodiment of the present invention；
Fig. 2 is the arrangement schematic diagram of control cylinder in quick-closing valve provided in an embodiment of the present invention；
Fig. 3 is the arrangement schematic diagram of pilot sleeve in quick-closing valve provided in an embodiment of the present invention；
Fig. 4 is the arrangement schematic diagram of the installing plate of quick-closing valve medium-height trestle provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiments provide a kind of quick-closing valve.Fig. 1 is the structural representation of quick-closing valve provided in an embodiment of the present invention
Figure, referring to Fig. 1, the quick-closing valve includes quick-closing valve seat 1, quick-closing valve door 2, quick-closing valve core 3, driving oil cylinder 5, controlling organization 6 and control
Liquefaction cylinder 7.
Wherein, quick-closing valve seat 1 has air intake 101, air port 102 and the steam drain 103 being sequentially communicated, quick-closing valve door 2
Can folding be arranged on air port 102, one end of quick-closing valve core 3 is fixedly connected on quick-closing valve door 2, quick-closing valve core 3 it is another
Stretch out the side wall of quick-closing valve seat 1 in one end.
Drive oil cylinder 5 to be fixedly mounted on the side wall of quick-closing valve seat 1, drive and be provided with oil cylinder 5 and can drive in oil cylinder 5
The driving piston 504 of activity, drives piston 504 to drive and be divided into inside oil cylinder 5 driving epicoele and drive cavity of resorption, drives cavity of resorption
Side wall is provided with the first oil-in 511 and the first oil drain out 505, and the other end of quick-closing valve core 3 is extend into driving cavity of resorption, and speed is closed
The other end of valve element 3 is fixedly connected with piston 504 is driven, and the side wall for driving epicoele is provided with the second oil-in 512.
Oil cylinder 5 is axially arranged installing hole 507 to drive oil cylinder 5 to drive away from the end edge of quick-closing valve seat 1, the installing hole
The second oil drain out 508 is offered on 507 hole wall.
The quick-closing valve also includes controlling organization 6 and control cylinder 7.
Controlling organization 6 includes slide bar 601, first connecting rod 602 and second connecting rod 603, and slide bar 601 is movably arranged on installing hole
In 507, oil drain passage 604 is provided with slide bar 601, one end of oil drain passage 604 communicates with the inside for driving epicoele, and oil extraction is led to
The other end in road 604 is operationally communicated with the second oil drain out 508, and first connecting rod 602 is axially displaceably inserted into driving oil
Away from the end of quick-closing valve seat 1, the moving direction of first connecting rod 602 is in angle with the axis direction of slide bar 601 to cylinder 5, and first connects
One end of bar 602 is overlapped on 1 slide bar 601 on the one end for driving piston 504, and the other end of first connecting rod 602 and second connects
One end of bar 603 is hinged, and the middle part of second connecting rod 603 is hinged in control cylinder 7, between second connecting rod 603 and control cylinder 7
It is provided with dynamic clamping head and quiet clamping head 605.
Control cylinder 7 is arranged on and drives on oil cylinder 5, and control piston rod 705 is provided with control cylinder 7, controls piston rod
705 telescopic end is detachably provided in slide bar 601 on the one end for driving piston 504.When quick-closing valve is opened, control is lived
The telescopic end of stopper rod 705 is withstood on slide bar 601, and when quick-closing valve is in closing, one end of first connecting rod 602 is located at slide bar 601
On.
The quick-closing valve seat tool of the quick-closing valve that the embodiment of the present invention is provided has air intake, air port and the steam discharge being sequentially communicated
Mouthful, so, steam can be entered from the air intake of quick-closing valve, Jing after air port, then be discharged from steam drain；Due to quick-closing valve door
Can folding be arranged on air port, the break-make on control vapour road can be reached by controlling the unlatching of quick-closing valve door, due to speed pass
The two ends of valve element respectively with quick-closing valve door and drive the driving piston of oil cylinder to be fixedly connected, therefore, the unlatching of quick-closing valve door can be with
Controlled by driving the driving piston driving quick-closing valve core movement of oil cylinder.
Because the side wall for driving the driving cavity of resorption of oil cylinder is provided with the first oil-in and the first oil drain out, the side of epicoele is driven
Wall is provided with the second oil-in, and the end for driving oil cylinder is provided with installing hole, and the second oil drain out is offered on the hole wall of installing hole,
By the first oil-in to driving cavity of resorption to send force feed, the oil drain outs of hydraulic oil Jing second for driving epicoele are discharged, and drive piston
Quick-closing valve core, quick-closing valve door can be driven to move to the direction away from air port, quick-closing valve is opened；Conversely, passing through the second oil-feed
Mouth to driving epicoele to send force feed, discharge by the oil drain outs of hydraulic oil Jing first for driving cavity of resorption, drives speed to close by driving piston
Valve element, quick-closing valve door are moved towards the direction of air port, and quick-closing valve is closed.
Because the quick-closing valve of the embodiment of the present invention also includes controlling organization and control cylinder, the slide bar activity of controlling organization sets
Put in installing hole, oil drain passage is provided with slide bar, one end of oil drain passage communicates with the inside for driving cylinder body, oil drain passage
The other end operationally communicate with the second oil drain out, therefore, drive epicoele the oil drain outs of hydraulic oil Jing second convey when, need by
Oil drain passage is communicated with the second oil drain out, that is, need to move the slide bar of controlling organization in installing hole.
Because one end of the first connecting rod of the controlling organization of the embodiment of the present invention is overlapped on slide bar away from the one of driving piston
On end, therefore, in slide bar before installing hole is moved, one end of first connecting rod need to be departed from from slide bar.
Because first connecting rod is axially displaceably inserted into the end for driving oil cylinder away from quick-closing valve seat, and first connecting rod
One end is overlapped on slide bar on the one end for driving piston, and the other end of first connecting rod is hinged with one end of second connecting rod, and second
It is hinged in the middle part of connecting rod in control cylinder, dynamic clamping head and quiet clamping head is provided between second connecting rod and control cylinder, elder generation is needed during operation
Apply a revolving force for overcoming dynamic clamping head and quiet clamping head active force to second connecting rod manually, make second connecting rod rotate, drive the
One connecting rod departs from from slide bar, and slide bar can be moved in the presence of the hydraulic oil for driving epicoele, until the oil extraction in slide bar
Passage is communicated with the second oil drain out, and now, the telescopic end of the control piston rod of control cylinder is withstood on the end face of slide bar, anti-on-slip
Bar is further moved.
When quick-closing valve is closed, the telescopic end work of the control piston rod of control cylinder makes slide bar move in installing hole, makes
Oil drain passage and the second oil drain out disconnect, and under the reset response of dynamic clamping head and quiet clamping head, second connecting rod rotates, and then force the
One connecting rod to slide bar end move, lock slide bar, prevent slide bar in installation cavity slidably, make slide bar oil drain passage and
Second oil drain out is communicated, so that quick-closing valve is automatically turned on or closed.
Therefore, the quick-closing valve in the embodiment of the present invention before activation, the second connecting rod being both needed in manual action controlling organization,
First connecting rod is departed from from slide bar so that the second oil drain out can with drive epicoele communicate, quick-closing valve after closing, control machine
Second connecting rod in structure can automatically reset, and first connecting rod is moved to slide bar end, lock slide bar, make the second oil extraction
Mouth disconnects with epicoele is driven, and to prevent because automatically controlled maloperation causes quick-closing valve to automatically turn on, the processing safety for causing is not enough to ask
Topic.
During the present invention is implemented, there is quick-closing valve seat 1 air intake 101 being sequentially communicated and steam drain 103 to be located at speed pass respectively
The symmetrical both sides of valve seat, and air intake 101 and steam drain 103 central shaft is parallel to each other, air port 102 is arranged on air intake
Between 101 and steam drain 103, and central shaft and the center of steam drain 103 of the central shaft of air port 102 with air intake 101
Axle is mutually perpendicular to.
Fig. 2 is the arrangement schematic diagram of control cylinder in quick-closing valve provided in an embodiment of the present invention；With reference to Fig. 2, the present invention is real
In applying example, slide bar 601 can include from drive inside oil cylinder 5 to drive outside oil cylinder 5 the first bar portion 601a for setting gradually and
Second bar portion 601b, the diameter with diameter greater than the first bar portion 601a of the second bar portion 601b, correspondingly, installing hole 507 include from
Drive the first installing hole and the second installing hole set gradually to the outside of driving oil cylinder 5 inside oil cylinder 5, the internal diameter of the first installing hole
Consistent with the external diameter of the first bar portion 601a, the internal diameter of the second installing hole is consistent with the external diameter of the second bar portion 601b, so sliding
When bar 601 is moved in installing hole 507, the second bar portion 601b can limit the moving displacement of slide bar 601.
Further, the embodiment of the present invention can be provided with positive stop lug boss 601c, positive stop lug boss in the end of the second bar portion 601b
601c can be in the form of a column, and less than the diameter of the second bar portion 601b, one end of first connecting rod 602 can act against positive stop lug boss to its diameter
On 601c, the effect of positive stop lug boss 601c is the moving displacement for limiting first connecting rod 601b.
In the embodiment of the present invention, the first bar portion 601a, the second bar portion 601b and positive stop lug boss 601c can be tied for integral type
Structure, and be coaxially disposed, to facilitate the manufacturing of slide bar 601.
In the embodiment of the present invention, one end of second connecting rod 603 can be provided with mounting hole 606, the length side of mounting hole 606
To identical with the length direction of second connecting rod 603, one end of second connecting rod 603 is another with first connecting rod 601 by mounting hole 606
Realize being hinged in one end.
In the embodiment of the present invention, the moving direction of first connecting rod 602 can be with perpendicular pass with the axis direction of slide bar 601
System.
The middle part of the second connecting rod 603 in the embodiment of the present invention can be rotatably connected with control cylinder 7, therebetween
Dynamic clamping head and quiet clamping head 605 can select helical spring, and under original state, dynamic clamping head and quiet clamping head 605 can all the time act on second connecting rod
Active force counterclockwise on 603, forces first connecting rod 602 to move towards the direction of slide bar in lid 502 in driving, to slide bar
601 movement is limited；Before slide bar 601 is moved upwards, first manual action second connecting rod 603 is needed, a up time is applied to it
The revolving force of pin, the helical spring power for overcoming dynamic clamping head and quiet clamping head 605 to produce drives the court in lid 502 in driving of first connecting rod 602
Move to the direction away from slide bar 601, and then slide bar 601 is moved upwards in the case where the hydraulic action in oil cylinder 5 is driven, while the
One end of one connecting rod 602 contacts with the second bar portion 601b, contrary, during the slide downward of slide bar 601, first connecting rod 602
One end can contact with positive stop lug boss 601c, and then carry out buckle to slide bar 601 and fix, and prevent slide bar 601 from moving upwards.
In the embodiment of the present invention, can be connected by third connecting rod 607 between the middle part of second connecting rod 603 and control cylinder 7
Connect, one end and the middle part of second connecting rod 603 of third connecting rod 607 are hinged, the other end and the control cylinder 7 of third connecting rod 607 are consolidated
Fixed connection.
The control cylinder 7 of the embodiment of the present invention includes lid 702, control lower cover 703 and control on control cylinder body 701, control
Piston 704, the two ends for controlling cylinder body 701 are sealed respectively by the upper lid 702 of control and control lower cover 703, and the control activity of piston 704 sets
Put control cylinder body 7 in, control piston rod 705 with control piston 704 be fixedly connected, control cylinder body 701 side wall be provided with it is logical
Hydraulic fluid port 706, between control piston 704 and the upper lid 702 of control the first compression elastic piece 707 is provided with, and this can just make control live
Hydraulic-driven power is born in the lower surface of plug 704, and the spring force of the first compression elastic piece 707 is born in the upper surface for controlling piston 704,
By logical hydraulic fluid port 706 release hydraulic oil when, the hydraulic-driven power for controlling the lower surface of piston 704 disappears, and control piston 704 is first
The spring force of compression elastic piece 707 is down moved under promoting, and then promotes slide bar 601 to move downward, and is introduced by logical hydraulic fluid port 706
During hydraulic oil, hydraulic-driven power is set up in the lower surface for controlling piston 704, and the hydraulic-driven power overcomes the first compression elastic piece 707
Spring force promote control piston 704 up to move, and then move up offer condition for slide bar 601.
First compression elastic piece 707 of the embodiment of the present invention can be compression spring, wherein, control the external diameter of cylinder body 701
Match, so, control cylinder body 701 can be supported to the first compression elastic piece 707, prevent the first compression elastic piece 707
Because gravity produces bias.
In the embodiment of the present invention, lid 502 can be with integrated on the control lower cover 703 of control cylinder 7 and the driving of driving oil cylinder 5
Together, with facilitate control cylinder 7 drive oil cylinder 5 on installation.
In the embodiment of the present invention, drive in cylinder body 501 and be provided with the second compression elastic piece 508, the second compression elastic piece 508
Two ends be connected with upper lid 502 and driving piston 504 is driven respectively.The pressure of the hydraulic oil in oil cylinder 501 is driven by control
With the active force of the second compression elastic piece 508 of setting, driving piston 504 can be made to rest on specified location, this can just make speed
The aperture of closing valve is adjustable.
The second compression elastic piece 508 in the embodiment of the present invention can be compression spring, and drive cylinder body 501 to be in platform
Scalariform, and at least there is one section in the column matched with the external diameter of the second compression elastic piece 508, the stylolitic part can be to second
Compression elastic piece 508 is supported, and prevents the second compression elastic piece 508 eccentric because the effect such as gravity, impulsive force is produced.
The driving oil cylinder 5 of the embodiment of the present invention also includes driving lid 502 and driving lower cover 503 on cylinder body 501, driving, drives
Respectively by driving above lid 502 and driving lower cover 503 to seal, driving cylinder body 501 and the upper lid 502 of driving are at the two ends of dynamic cylinder body 501
Integral structure, drives lower cover 503 to be removably connected with cylinder body 501 is driven.
The piston 504 that drives of the embodiment of the present invention is provided with projection 509 towards on the end face for driving lower cover 503, under driving
Lid 503 is provided with the groove 5010 corresponding with projection 509, and the first oil drain out 505 is opened on driving lower cover 503, first row
Hydraulic fluid port 505 is correspondingly arranged and communicates with groove 5010, and the aperture of the first oil drain out 505 is less than the aperture of groove 5010.Drive and live
Plug 504 is mobile in oil cylinder 5 is driven to drive quick-closing valve core 3 to move, and when closing quick-closing valve door 2, hydraulic oil can be from the first oil extraction
Discharge in mouth 505, projection 509 also can be moved to the direction of groove 5010, and hydraulic oil can only be between projection 509 and groove 5010
Gap flows to the first oil drain out 505, and then the dredge oil amount of the first oil drain out 505 of reduction, and the movement to driving piston 504 subtracts
Speed, and then the closing velocity of quick-closing valve door 2 can be reduced, produced with quick-closing valve seat 1 when closed with reaching reduction quick-closing valve door 2
Impact, with avoid produce noise, and increase valve group service life.
First oil-in 5011 of the embodiment of the present invention can be opened on driving lower cover 503.
Projection in the embodiment of the present invention can be annular in shape.
In the embodiment of the present invention, an oil expulsion channel 5012, the two ends difference of the oil expulsion channel 5012 can be opened up on projection 509
Communicate with the inside of control cylinder body 701 and the first oil drain out 505, after projection 509 and groove 5010 are fully mated, for discharging control
Remaining hydraulic oil in cylinder body processed 701.
The oil cylinder 5 that drives of the embodiment of the present invention can be arranged on the outer wall of quick-closing valve seat 1 by support 4.
Fig. 3 is the arrangement schematic diagram of pilot sleeve in quick-closing valve provided in an embodiment of the present invention；With reference to Fig. 3, the present invention is real
In applying example, drive lower cover 503 to be integrated on support 4, drive in lower cover 503 and be provided with what is passed through by the activity of quick-closing valve core 4
Pilot sleeve 8, has lubrication gap between pilot sleeve 8 and quick-closing valve core 4.The hydraulic oil in oil cylinder 5 is driven to penetrate into
In the lubrication gap, movement of the quick-closing valve core 4 in pilot sleeve 8 is lubricated, prevents bite phenomenon.
In the embodiment of the present invention, one end of pilot sleeve 8 can be provided with and be overlapped on the overlap joint driven on the top surface of lower cover 503
Otic placode 801, the overlap joint otic placode 801 can be arranged on by bolt and be driven on lower cover 503.
The position of lower cover 503 is driven to be provided with drain tap 802 in addition, pilot sleeve 8 is passed, the drain tap 802 is used for back
The hydraulic oil in lubrication gap is received, while the pressure of hydraulic oil at a lubrication gap can also be reduced.
In the embodiment of the present invention, drain tap 802 can be connected by a pipeline with fuel tank, for reclaiming from the draining
The hydraulic oil that mouth 802 is discharged.
Fig. 4 is the arrangement schematic diagram of the installing plate of quick-closing valve medium-height trestle provided in an embodiment of the present invention；With reference to Fig. 4, support 4
It is arranged between driving oil cylinder 5 and quick-closing valve seat 1, and support 4 is provided with the installing plate for being fixedly connected with quick-closing valve seat 1
401, the installing plate 401 is provided with first through hole 401a and the second through hole 401b, first through hole 401a and the second through hole for communicating
401b is passed through by the activity of quick-closing valve core 3, and the internal diameter of first through hole 401a and the external diameter of quick-closing valve core 3 match, the second through hole
The internal diameter of 401b is filled with encapsulant 10, the second through hole 401b more than the internal diameter of first through hole 401a in the second through hole 401b
Sealed by the sealing nut 9 coordinated with the second through hole 401b screw threads, sealing nut 9 slides and is sleeved on quick-closing valve core 3, in case
Only steam leakage.
In the embodiment of the present invention, first through hole 401a and the second through hole 401b so can may be used successively near oil cylinder 5 is driven
To facilitate the dismounting of sealing nut 9, to supplement encapsulant.
In the embodiment of the present invention, the hole passed through by quick-closing valve core 3 is provided with sealing nut 9, is needed to encapsulant 10
When being supplemented, rotating gland nut 9, sealing nut 9 can be screwed out along quick-closing valve core 3 from the second through hole 401b.
Encapsulant 10 in the embodiment of the present invention has steam seal function, can be flexible graphite packing etc..
In the embodiment of the present invention, the installing plate 401 of support 4 can be arranged on quick-closing valve seat 1 by bolt.
Support 4 in the embodiment of the present invention can adopt integrated casting structure, to ensure that it is good firm that support 4 has
Property, and ensure that the installation place of pilot sleeve 8 has enough intensity, quick-closing valve core 3 is prevented because rigidity is not enough deformed, blocks
Etc. failure.
In the embodiment of the present invention, due to driving oil cylinder to be arranged on the outer wall of quick-closing valve seat 1 by support 4, therefore, speed is closed
The length of valve element 3 needs to lengthen, and then makes quick-closing valve core 3 have sufficiently long span, to ensure that the two ends of quick-closing valve core 3 have
Sufficient heat-dissipating space, prevents the high temperature that the steam medium of quick-closing valve door 2 causes to be transferred to drive at oil cylinder 5.
In the embodiment of the present invention, drive and can be connected by multiple support bars 402 between lower cover 503 and installing plate 401, with
Structure is strengthened.
In the embodiment of the present invention, a screwed hole 201 can be provided with quick-closing valve door 2, quick-closing valve core 3 is plugged in the spiral shell
In pit 201, and locked by locking nut 202.The screw thread being thread through by quick-closing valve core 3 is provided with locking nut 202
Hole.
In the embodiment of the present invention, the quick-closing valve can also include oil intake assembly and oil return component, wherein, oil intake assembly includes
Oil pump 11, the first oil inlet pipe 12 and the second oil inlet pipe 13, the pumping from fuel tank of oil pump 11 has the hydraulic oil of certain pressure, the liquid
A force feed point two-way is entered into driving oil cylinder 5, wherein leading up to the first oil inlet pipe 12 and the first oil-in 511 enters into driving
In the oil cylinder cavity of resorption of oil cylinder 5, the second oil inlet pipe 13 is led up in addition and the second oil-in 512 for driving cylinder body 501 is arranged on
In entering into the cylinder upper cavity oil for driving oil cylinder 5；And oil return component includes the first oil return pipe 15, the second oil return pipe 16 and magnetic valve
14, when battery valve 14 is opened, drive the hydraulic oil in the oil cylinder cavity of resorption of oil cylinder 5 to pass through the first oil drain out 505, the first oil return pipe
15 and battery valve 14 be back to fuel tank, the hydraulic coupling of oil cylinder cavity of resorption disappears, and drives piston 504 in the second compression elastic piece 508
Move downward under spring-force driven dual, meanwhile, the hydraulic oil in control cylinder 7 is by leading to hydraulic fluid port 706, the second oil return pipe 16 and electromagnetism
Valve 14 is back to fuel tank, and the hydraulic coupling for controlling the lower surface of piston 704 disappears, and control piston 704 is in the first compression elastic piece 707
Down move in the presence of spring force, promote slide bar 601 to move downward, the second oil drain out 604 is disconnected with epicoele is driven, so
Can just make the hydraulic oil in the cylinder upper cavity oil for driving oil cylinder 5 progressively set up pressure, further promote control piston to transport downwards
It is dynamic, the closing function of quick-closing valve is realized, the open function of quick-closing valve is identical with closing function general principle, will not be described here.
The foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of quick-closing valve, the quick-closing valve includes quick-closing valve seat, quick-closing valve door, quick-closing valve core and drives oil cylinder, and the speed is closed
Valve seat has the air intake, air port and the steam drain that are sequentially communicated, the quick-closing valve door can folding be arranged on the air port
On, one end of the quick-closing valve core is fixedly connected on the quick-closing valve door, and the other end of the quick-closing valve core stretches out the speed
Close the side wall of valve seat, it is characterised in that
The driving oil cylinder is fixedly mounted on the side wall of the quick-closing valve seat, and in the driving oil cylinder driving piston is provided with,
The driving piston will be divided into driving epicoele and drives cavity of resorption, the side wall of the driving cavity of resorption to be provided with inside the driving oil cylinder
First oil-in and the first oil drain out, the other end of the quick-closing valve core is stretched into the driving cavity of resorption and lived with described driving
Plug is fixedly connected, and described to drive the side wall of epicoele to be provided with the second oil-in, the driving oil cylinder is away from the quick-closing valve seat
End drives that oil cylinder is axially arranged installing hole along described, and the second oil drain out is offered on the hole wall of the installing hole；
The quick-closing valve also includes controlling organization and control cylinder；
The controlling organization includes slide bar, first connecting rod and second connecting rod, and the slide bar is movably arranged in the installing hole, institute
State and be provided with slide bar oil drain passage, one end of the oil drain passage communicates with the inside of the driving epicoele, and the oil extraction is led to
The other end in road is operationally communicated with second oil drain out, and the first connecting rod is axially displaceably inserted into the driving
Away from the end of the quick-closing valve seat, the moving direction of the first connecting rod is in angle with the axis direction of the slide bar to oil cylinder,
One end of the first connecting rod is overlapped on the slide bar on one end of the driving piston, the other end of the first connecting rod
It is hinged with one end of the second connecting rod, is hinged in the middle part of the second connecting rod in the control cylinder, the second connecting rod
Dynamic clamping head and quiet clamping head is provided between the control cylinder；
The control cylinder is arranged on the driving oil cylinder, and control piston rod, the control are provided with the control cylinder
The telescopic end of piston rod is detachably provided in the slide bar on one end of the driving piston.
2. quick-closing valve according to claim 1, it is characterised in that the slide bar is included from inside the driving oil cylinder to institute
State and drive the first bar portion for setting gradually and the second bar portion outside oil cylinder, second bar portion with diameter greater than first bar portion
Diameter, the installing hole includes from inside the driving oil cylinder to the first installing hole for setting gradually outside the driving oil cylinder
With the second installing hole, the internal diameter of first installing hole is consistent with the external diameter of first bar portion, second installing hole
Internal diameter is consistent with the external diameter of second bar portion.
3. quick-closing valve according to claim 2, it is characterised in that the end of second bar portion is provided with positive stop lug boss,
Less than the diameter of second bar portion, one end of the first connecting rod is detachably provided in described the diameter of the positive stop lug boss
The sidepiece of positive stop lug boss.
4. quick-closing valve according to claim 1, it is characterised in that one end of the second connecting rod is provided with mounting hole, institute
The length direction for stating mounting hole is identical with the length direction of the second connecting rod, and one end of the second connecting rod is by the kidney-shaped
Hole is hinged with the other end of the first connecting rod.
5. quick-closing valve according to claim 1, it is characterised in that the first pressure is provided with the rodless cavity of the control cylinder
Contracting elastic component.
6. the quick-closing valve according to any one of claim 1-5, it is characterised in that set in the driving epicoele of the driving oil cylinder
The second compression elastic piece is equipped with, the two ends of second compression elastic piece are remote with the driving piston and the driving oil cylinder respectively
Connect from the end of the quick-closing valve seat.
7. quick-closing valve according to claim 6, it is characterised in that the driving oil cylinder at least has a section and is in and described the
The column that two compression elastic piece external diameters match.
8. the quick-closing valve according to any one of claim 1-5, it is characterised in that the driving piston is towards the quick-closing valve
Projection is provided with the end face of seat, the driving oil cylinder has corresponding with the projection recessed near the end of the quick-closing valve seat
Groove, first oil drain out be opened in it is described driving oil cylinder on one end of the quick-closing valve seat, first oil drain out with
The groove is correspondingly arranged and communicates, and the aperture of first oil drain out is less than the aperture of the groove.
9. quick-closing valve according to claim 8, it is characterised in that the driving oil cylinder is near one end of the quick-closing valve seat
The pilot sleeve passed through by the quick-closing valve core activity is inside provided with, there is profit between the pilot sleeve and the quick-closing valve core
Sliding gap.
10. quick-closing valve according to claim 9, it is characterised in that it is close that the pilot sleeve passes the driving oil cylinder
The position of one end of the quick-closing valve seat is provided with drain tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610976467.9A CN106641411B (en) | 2016-11-07 | 2016-11-07 | Quick-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610976467.9A CN106641411B (en) | 2016-11-07 | 2016-11-07 | Quick-closing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106641411A true CN106641411A (en) | 2017-05-10 |
| CN106641411B CN106641411B (en) | 2019-02-05 |
Family
ID=58805273
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610976467.9A Active CN106641411B (en) | 2016-11-07 | 2016-11-07 | Quick-closing valve |
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| Country | Link |
|---|---|
| CN (1) | CN106641411B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723897A (en) * | 2017-10-27 | 2019-05-07 | 赵斌 | Zero energy consumption normally-open normally-close solenoid valve of big flux |
| CN114233408A (en) * | 2021-12-28 | 2022-03-25 | 靖江市新博液压件有限公司 | Emergency trip hydraulic device with sequence valve |
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| CN203702269U (en) * | 2014-03-12 | 2014-07-09 | 南京汽轮电机(集团)有限责任公司 | Low-pressure single-side hydraulic servo-motor |
| CN204042151U (en) * | 2014-09-10 | 2014-12-24 | 重庆红江机械有限责任公司 | A kind of speed closes stop valve |
| CN105065696A (en) * | 2015-08-19 | 2015-11-18 | 武汉船用机械有限责任公司 | Quick-closing regulating valve |
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| US4418764A (en) * | 1981-07-14 | 1983-12-06 | Giken Kogyo Kabushiki Kaisha | Fluid impulse torque tool |
| US5399071A (en) * | 1992-04-07 | 1995-03-21 | Abraham; Moshe | Pressure booster |
| CN202302083U (en) * | 2011-10-18 | 2012-07-04 | 天津国际机械有限公司 | Hydraulic three-way stop valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109723897A (en) * | 2017-10-27 | 2019-05-07 | 赵斌 | Zero energy consumption normally-open normally-close solenoid valve of big flux |
| CN109723897B (en) * | 2017-10-27 | 2020-10-16 | 赵斌 | Large-flux normally open normally closed electromagnetic valve |
| CN114233408A (en) * | 2021-12-28 | 2022-03-25 | 靖江市新博液压件有限公司 | Emergency trip hydraulic device with sequence valve |
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| Publication number | Publication date |
|---|---|
| CN106641411B (en) | 2019-02-05 |
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