CN107514489A - A kind of forced seal ball valve opens and closes drive device - Google Patents
A kind of forced seal ball valve opens and closes drive device Download PDFInfo
- Publication number
- CN107514489A CN107514489A CN201710985209.1A CN201710985209A CN107514489A CN 107514489 A CN107514489 A CN 107514489A CN 201710985209 A CN201710985209 A CN 201710985209A CN 107514489 A CN107514489 A CN 107514489A
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- China
- Prior art keywords
- valve
- valve rod
- ball valve
- drive device
- ball
- Prior art date
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- 238000007789 sealing Methods 0.000 claims abstract description 19
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
-
- 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
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/535—Mechanical actuating means with toothed gearing for rotating valves
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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
- F16K35/00—Means to prevent accidental or unauthorised actuation
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
Abstract
The present invention relates to a kind of forced seal ball valve to open and close drive device, including sealed valve stem, valve ball valve rod, valve rod driving rotating disk and valve rod travel block, and sealed valve stem driving sealing driving wheel rotates, the driving sealed valve stem rotation of valve rod driving rotating disk；Valve ball valve rod driving valve ball rotates, the rotational travel of valve rod travel block control valve ball valve rod；Rotated simultaneously with sealed valve stem in the rotational travel internal valve ball valve rod of valve ball valve rod, after valve ball valve rod turns to valve ball closed position, valve rod driving rotating disk driving sealed valve stem rotates, drives screw driving wheel to jack up and withdraw closure.The beneficial effects of the invention are as follows：Using a valve rod driving rotating disk, coordinate the elasticity mounting ring being arranged on valve ball valve rod and driving hook, depart from hook, depart from the angle of wedge and reset the angle of wedge, valve rod driving rotating disk is set to drive the operation of valve ball and closure according to the operating process of forced seal ball valve, it is easy to operate, reliability is high, the application particularly suitable for heavy caliber and high pressure valve.
Description
Technical field
The invention belongs to ball valve, more particularly to a kind of forced seal ball valve to open and close drive device.
Background technology
In field of fluid control, such as the switching of production of hydrocarbons flow, pipeline shut-off, metering, pressure regulation, molecular sieve switching, compression
Machine inlet and outlet, the frequent operation such as hydrogen operating mode, the space division of synthetic ammonia installation in oil refining process and fluid switch control and pass
Close the field that tightness requires harsh, it is desirable to the generation pressure drop that valve can be as small as possible in the state of straight-through, and can
The pressure moment of torsion sealing not influenceed by pipeline pressure medium is provided.Forced seal ball valve is acknowledged as preferable solution.With
Ordinary ball valve is different, and forced seal ball valve pass through two steps in operation, when operation valve ball opening and closing position it
Between rotate, second, operation closure jack up and withdraw, realize forced seal.How using the single operation as common valve
The operation that forced seal ball valve is completed in action is one of key technology of forced seal ball valve design.Chinese utility model patent
（The patent No. 2016204911272）" a kind of forced seal ball valve " is disclosed, forced seal device, while valve are driven using valve rod
Bar drives valve ball to rotate by torsion spring, completes two operating procedures.But such technical scheme is applied in heavy caliber and high pressure valve
Door may produce the unstable of operation, or even failure.
The content of the invention
The purpose of the present invention is to propose to the technical scheme that a kind of forced seal ball valve opens and closes drive device, forced seal is improved
The operating characteristics and reliability of ball valve.
To achieve these goals, the technical scheme is that：A kind of forced seal ball valve opens and closes drive device, sets
In forced seal ball valve, the forced seal ball valve includes valve ball, and the valve ball is provided with closure and screw driving wheel, works as institute
When stating valve ball and rotating to closed position, the screw driving wheel rotation is by screw thread jack-up and withdraws the closure, the spiral shell
Rotation driving wheel is rotated by sealing drive wheel；The forced seal ball valve, which opens and closes drive device, includes sealed valve stem, valve ball valve
Bar, valve rod driving rotating disk and valve rod travel block, the sealed valve stem driving sealing driving wheel rotate, the valve rod driving
Rotating disk driving sealed valve stem rotation；The valve ball valve rod drives the valve ball to rotate, and the valve rod travel block controls the valve
The rotational travel of ball valve rod；The valve ball valve rod turns simultaneously with the sealed valve stem in the rotational travel of the valve ball valve rod
Dynamic, after the valve ball valve rod turns to valve ball closed position, the valve ball valve rod turns to stop operating；The valve rod driving rotating disk
Continue to drive the sealed valve stem to rotate and drive the screw driving wheel to jack up and withdraw the closure.
Further, the forced seal ball valve opens and closes drive device and is provided with drive device casing, and the valve rod driving turns
Disk is arranged in the drive device casing；The valve ball valve rod is provided with elasticity mounting ring, and the elasticity mounting ring is with the valve
Ball valve rod rotates, and the elasticity mounting ring is the elasticity mounting ring that elastic displacement is produced in the rotation round direction of valve ball valve rod,
The drive device casing is provided with position correspondence and linked up with the disengaging angle of wedge of the elasticity mounting ring and disengaging, the valve rod driving
Rotating disk is provided with the driving hook for pulling the elasticity mounting ring；When the valve ball valve rod turns to valve ball closed position, the disengaging
The angle of wedge promotion elasticity mounting ring departs from the driving hook and is linked into the disengaging hook.
Further, the drive device casing is provided with upper lid, and the disengaging angle of wedge and disengaging hook are arranged on described
Cover.
Further, the valve rod driving rotating disk is provided with position correspondence in the reset angle of wedge of the elasticity mounting ring, works as institute
State valve rod driving rotating disk to opening direction rotate when, it is described reset the angle of wedge promote it is described elasticity mounting ring depart from it is described depart from hang
Hook and the driving hook for being linked into the valve rod driving rotating disk.
Further, the valve ball valve rod is provided with turning handle, and the turning handle is provided with through hole, and the elasticity mounting ring includes hanging
Ring, peg and stage clip, the peg pass through the through hole of turning handle, and one end of the peg is hinged with the link, the extension
A stage clip is respectively equipped between the other end of bar and the turning handle.
Further, the valve ball valve rod is provided with turning handle, and the turning handle is provided with through hole, and the elasticity mounting ring includes hanging
Ring, peg and elastic telescopic frame, the peg pass through turning handle the through hole, the link and peg respectively with the expansion bracket
Both ends be hinged.
Further, the elastic telescopic frame includes the first expansion bracket, the second expansion bracket and stage clip, first expansion bracket
One end be hinged with peg, the other end of first expansion bracket is provided with the first spring shelves head, second expansion bracket with it is described
Link is hinged, and the other end of second expansion bracket is provided with second spring shelves head, the compression spring sleeve in first expansion bracket and
On second expansion bracket, the first spring shelves head and second spring shelves head described in the both ends difference top pressure of the stage clip.
Further, the forced seal ball valve opens and closes drive device and is provided with drive device casing, the valve rod travel gear
Block includes closed position block and open position block, and the valve ball valve rod is provided with turning handle；The closed position block and unlatching
Position stop is arranged on the drive device casing, and the valve ball valve rod turns to turning handle contact during valve ball closed position
The closed position block, the valve ball valve rod turn to turning handle during valve ball open position and contact the open position gear
Block.
Further, the closed position block and open position block are arranged on the drive device by block bolt
On casing, the contact surface of the closed position block and open position block and the turning handle is inclined-plane, and the block bolt is set
There is locking nut.
Further, the valve rod driving rotating disk is the turbine disk by worm drive..
The beneficial effects of the invention are as follows：Using a valve rod driving rotating disk, coordinate the bullet being arranged on valve ball valve rod turning handle
Property mounting ring and driving hook, depart from hook, depart from the angle of wedge and reset the angle of wedge, make valve rod driving rotating disk according to forced seal ball valve
Operating process drives the operation of valve ball and closure, and the use of elasticity mounting ring, the closure for making to integrate on valve ball is except pressure
All positions beyond when sealing jacks up can be reliably tightened up on valve ball matrix, avoid the influence of medium turbulent flow.Work as valve ball
When integrally being rotated to pass direction, rigidly connected fault-tolerant guarantee can be provided.After valve ball matrix turns to off-position, it can separate again
Motion association between valve ball matrix and closure jack-up, reduces the consumption of forced seal moment of torsion.Easy to operate, reliability is high,
Application particularly suitable for heavy caliber and high pressure valve.
The present invention is described in detail with reference to the accompanying drawings and examples.
Brief description of the drawings
Fig. 1 is structure chart of the present invention；
Fig. 2 is drive device body structure of the present invention, and upper lid upset is opened；
Fig. 3 is the structure chart that the present invention opens drive device box cover, and turning handle goes to valve ball closed position；
Fig. 4 is the structure chart of forced seal ball valve open position of the present invention；
Fig. 5 is the structure chart of forced seal ball valve closed position of the present invention；
Fig. 6 is that the angle of wedge of the invention that departs from promotes elasticity mounting ring disengaging driving hook schematic diagram；
Fig. 7 is that elasticity mounting ring of the invention is linked into disengaging hook schematic diagram；
Fig. 8 is that the reset angle of wedge of valve rod driving rotating disk of the present invention promotes elasticity to mount the driving that ring is linked into valve rod driving rotating disk again
The schematic diagram of hook；
Fig. 9 is another structure chart of elasticity mounting ring of the invention；Elasticity mounting is equipped with elastic telescopic frame.
Embodiment
Such as Fig. 1 to Fig. 5, a kind of forced seal ball valve opens and closes drive device, is arranged in forced seal ball valve, the pressure
Seal ball-valve includes valve ball 10, and the valve ball is provided with closure 11 and screw driving wheel 12, when the valve ball rotates to close stance
When putting, the screw driving wheel rotation, the closure is jacked up and withdrawn by screw thread 13, the screw driving wheel is driven by sealing
The driving rotation of driving wheel 14；The forced seal ball valve, which opens and closes drive device, includes sealed valve stem 20, valve ball valve rod 30, valve rod driving
Rotating disk 40 and valve rod travel block（51,52）, the sealed valve stem driving sealing driving wheel rotation, the valve rod driving turn
Dish driving sealed valve stem rotates；The valve ball valve rod drives the valve ball to rotate, and the valve rod travel block controls the valve ball
The rotational travel of valve rod；The valve ball valve rod rotates simultaneously with the sealed valve stem in the rotational travel of the valve ball valve rod,
After the valve ball valve rod turns to valve ball closed position, the valve ball valve rod turns to stop operating；The valve rod driving rotating disk after
The continuous driving sealed valve stem rotates and drives the screw driving wheel to jack up and withdraw the closure.
The forced seal ball valve opens and closes drive device and is provided with drive device casing 60, and the valve rod driving rotating disk is arranged on
In the drive device casing；The valve ball valve rod is provided with elasticity mounting ring 70, and the elasticity mounting ring is with the valve ball valve rod
Rotation, the elasticity mounting ring are that the elasticity that elastic displacement is produced in the rotation round direction of valve ball valve rod mounts ring, the drive
Dynamic device box is provided with position correspondence in the disengaging angle of wedge 62 of the elasticity mounting ring and departs from hook 63, and the valve rod driving turns
Disk is provided with the driving hook 41 for pulling the elasticity mounting ring；When the valve ball valve rod turns to valve ball closed position, the disengaging
The angle of wedge promotion elasticity mounting ring departs from the driving hook and is linked into the disengaging hook.
The drive device casing is provided with upper lid 61, and the disengaging angle of wedge and disengaging hook are arranged on the upper lid.
The valve rod driving rotating disk is provided with position correspondence in the reset angle of wedge 42 of the elasticity mounting ring, when the valve rod drives
Turn disk to opening direction rotate when, it is described reset the angle of wedge promote it is described elasticity mounting ring depart from it is described depart from link up with and be linked into
The driving hook of the valve rod driving rotating disk.
The valve ball valve rod is provided with turning handle 31, and the turning handle is provided with through hole, and the elasticity mounting ring includes link 70, peg
71 and stage clip 72, the peg passes through the through hole of turning handle, and one end of the peg is hinged with the link, the peg
A stage clip is respectively equipped between the other end and the turning handle.
Such as Fig. 9, another structure of the elasticity mounting ring is：The valve ball valve rod is provided with turning handle 31, and the turning handle is set
There is through hole, the elasticity mounting ring includes link 70, peg 71 and elastic telescopic frame, and the peg leads to through the described of turning handle
Hole, the both ends of the link and peg respectively with the expansion bracket are hinged.
The elastic telescopic frame includes the first expansion bracket 73, the second expansion bracket 74 and stage clip 72, first expansion bracket
One end is hinged with peg, and the other end of first expansion bracket is provided with the first spring shelves first 75, second expansion bracket with it is described
Link is hinged, and the other end of second expansion bracket is provided with second spring shelves first 76, and the compression spring sleeve is in first expansion bracket
On the second expansion bracket, the first spring shelves head and second spring shelves head described in the both ends difference top pressure of the stage clip.
The valve rod travel block includes closed position block 51 and open position block 52, the closed position block and
Open position block is arranged on the drive device casing, and the valve ball valve rod turns to turning handle during valve ball closed position
The closed position block is contacted, the valve ball valve rod turns to turning handle during valve ball open position and contacts the open position
Block.
The closed position block and open position block are arranged on the drive device casing by block bolt 53,
The contact surface of the closed position block and open position block and the valve ball valve rod turning handle 31 is inclined-plane, the block bolt
Provided with locking nut 54.
The crowning of closed position block and open position block all the time with drive device box cover contacts, described
Raised and box cover is integral.So as to provide reliable spacing stop.
The valve rod driving rotating disk is the turbine disk driven by worm screw 43.The valve rod driving rotating disk is with respect to valve ball valve
The angle that bar rotates is no more than 270 degree.
Embodiment one：
Such as Fig. 1 to Fig. 5, a kind of forced seal ball valve opens and closes drive device, is arranged in forced seal ball valve.
Forced seal ball valve includes valve ball 10, and valve ball is provided with closure 11 and screw driving wheel 12, and closure passes through rib axle
In the rib hole 18 of ball valve, when the valve ball rotates to closed position, screw driving wheel is pushed up when rotating by screw thread 13
Play and withdraw closure.Top pressure realizes the sealing of ball valve on valve seat 15 when closure is jacked up；When closure is retracted and valve
Seat departs from, contacted with valve ball, and certain gap is kept between closure and valve seat, valve ball is not rubbed when rotating with valve seat
Wipe.Screw driving wheel drives rotation by sealing driving wheel 14.In the present embodiment, sealing driving wheel passes through an intermediate drive gear
16 driving screw driving wheels rotate.Screw driving wheel, intermediate drive gear and sealing driving wheel are all bevel gears, screw driving wheel
Axis perpendicular to sealing driving wheel axis.In order to reduce the end-face friction between screw driving wheel and valve ball, in spiral
The contact surface of driving wheel and valve ball is provided with thrust bearing 17.
Forced seal ball valve, which opens and closes drive device, includes sealed valve stem 20, valve ball valve rod 30.Sealed valve stem drives with sealing
Wheel is fixedly connected, and drives sealing driving wheel to rotate.Valve ball valve rod is passed through from sealed valve stem, and valve ball valve rod is fixed with valve ball to be connected
Connect, and drive valve ball to rotate.Turning handle 31 is provided with the upper end of valve ball valve rod.
Drive device casing 60 is provided with the stem side of forced seal ball valve.Drive device casing is provided with upper lid 61.
Valve rod driving rotating disk 40 is provided with drive device casing.Valve rod driving rotating disk is a turbine disk, is filled in driving
Put the worm screw 43 that driving stem driving rotating disk is provided with casing.Valve rod driving rotating disk is connected with sealed valve stem and drives sealed valve stem
Rotation.
Valve rod travel block, the rotational travel of valve rod travel block control valve ball valve rod are provided with drive device casing.
Valve rod travel block includes closed position block 51 and open position block 52, and valve ball valve rod turns when turning to valve ball closed position
Handle contacts closed position block, and turning handle contacts open position block when valve ball valve rod turns to valve ball open position.Closed position
Block and open position block are arranged on by block bolt 53 in the side wall of drive device casing, closed position block and unlatching
Position stop and the contact surface of valve rod turning handle（51a, 52a）It is inclined-plane, block bolt is provided with locking nut 54.Adjust block bolt
The inclined-plane of the length screwed in drive device casing, closed position block and open position block can be turned with reset valve ball valve rod
The stroke of handle.
Valve ball valve rod is provided with elasticity mounting ring 70, and elasticity mounting ring includes 70, two pegs 71 of link and two stage clips 72.
The turning handle of valve ball valve rod is provided with two through holes, and two pegs are each passed through the through hole of two turning handles, one end of two pegs and extension
Ring is hinged, and a stage clip is respectively equipped between the other end and turning handle of two pegs.Elasticity mounting ring can be in valve ball valve rod
Rotation round direction produces elastic displacement.
Valve rod driving rotating disk be provided with pull elasticity mounting ring driving hook 41, valve rod driving rotating disk be additionally provided with position correspondence in
The reset angle of wedge 42 of elasticity mounting ring.The upper lid 61 of drive device casing is provided with disengaging of the position correspondence in the elasticity mounting ring
The angle of wedge 62 and disengaging hook 63.
The operation principle of forced seal ball valve is：Valve ball valve rod rotational travel internal valve ball valve rod and sealed valve stem simultaneously
Rotate, valve ball valve rod stops operating after valve ball closed position is turned to, and valve rod driving rotating disk driving sealed valve stem rotates and band
Dynamic screw driving wheel jacks up and withdrawn closure.Generally, valve rod driving rotating disk is no more than relative to the angle that valve ball valve rod rotates
270 °, in the present embodiment, valve rod driving rotating disk is no more than 110 ° relative to the angle that valve ball valve rod rotates, you can completes sealing behaviour
Make.
When sealed valve stem relatively rotates with valve ball valve rod, screw driving wheel rotates relative to valve ball, and screw driving wheel passes through
Screw thread 13 jacks up and withdrawn closure.When closure is in recovery state, the bottom surface of closure contacts with the end face 19 of valve ball,
Screw driving wheel no longer rotates to the direction for packing up closure.Now, the driving of valve rod driving rotating disk hooks elasticity mounting ring,
Stage clip 72 keeps certain pretightning force between valve rod driving rotating disk and elasticity mounting ring.
Forced seal ball valve is in opening, as shown in figure 4, the turning handle 31 of valve ball valve rod connects with open position block 52
Touch, when valve rod driving rotating disk 40 rotates to closing direction（Such as G directions in Fig. 2）, the driving hook 41 of valve rod driving rotating disk pulls
Valve ball valve rod rotates, and valve rod driving rotating disk also drives the synchronous axial system of sealed valve stem 20 simultaneously.Due to sealed valve stem and valve ball valve rod
Between do not relatively rotate, closure 11 is maintained at retrieving position.
When valve rod driving rotating disk pulls valve ball valve rod to turn to valve ball closed position, as shown in fig. 6, valve ball valve rod turns
Handle 31 contacts with closed position block 51, and valve ball valve rod stops operating.Due to the presence of stage clip 72, driving hook 41 is hung with dynamic elasticity
Connect ring to continue to move to, stage clip is compressed, and in the compression travel of stage clip, is arranged on the disengaging angle of wedge 62 of drive device box cover
Promote elasticity mounting ring 70 to depart from driving hook 41 and be linked into disengaging hook 63, as shown in Figure 7；Under the pressure of stage clip, turning handle 31
It is pressed on the block of closed position, is maintained in its closed position valve ball.The valve rod driving rotating disk for departing from elasticity mounting ring continues
Rotate to closing direction, produced relative rotation between sealed valve stem 20 and valve ball valve rod 30, sealed valve stem drives screw driving wheel
12 rotations, screw driving wheel screw thread 13 jacks up closure, by closure top pressure on valve seat 15.Realize forced seal ball valve
Sealing, as shown in Figure 5.
When opening forced seal ball valve, valve rod driving rotating disk rotates to opening direction（Such as K directions in Fig. 2）, valve rod drive
Turn dribbling dynamic sealing valve rod rotates, and sealed valve stem drives screw driving wheel rotation, and screw driving wheel screw thread 13 withdraws closure,
The bottom surface of closure is contacted with the end face 19 of valve ball, and gap is produced between closure and valve seat.As shown in figure 8, valve rod driving turns
For disk in rotation process, the reset angle of wedge 42 of valve rod driving rotating disk promotes elasticity mounting ring to depart from the de- of drive device box cover
From hook 63, elasticity mounting ring is linked into the driving hook of valve rod driving rotating disk again.Valve rod driving rotating disk continues to revolve to opening direction
Turn, due to the bottom surface end contact with valve ball of closure, relative turn no longer is produced between sealed valve stem and valve ball valve rod
Dynamic, valve ball valve rod is synchronous with sealed valve stem to be rotated to opening direction, and valve ball rotates to opening direction, and elasticity mounting ring is also with valve ball
Valve rod rotates.The turning handle 31 of valve ball valve rod turns to be contacted with open position block 52, and valve ball turns to open position, completes
The unlatching operation of forced seal ball valve, as shown in Figure 4.
The forced seal ball valve of the present embodiment opens and closes drive device, and using a valve rod driving rotating disk, cooperation is arranged on valve
Elasticity mounting ring and driving hook, disengaging on ball valve rod are linked up with, depart from the angle of wedge and reset the angle of wedge, make valve rod driving rotating disk according to strong
The operating process driving valve ball of seal ball-valve processed and the operation of closure, only need rotary worm effectively to realize forced seal
The opening and closing operation of ball valve.Easy to operate, reliability is high, the application particularly suitable for heavy caliber and high pressure valve.
Embodiment two：
Such as Fig. 9, a kind of forced seal ball valve opens and closes drive device, and the present embodiment is a kind of knot of elasticity mounting ring in embodiment one
Structure improves.
In the present embodiment, valve ball valve rod is provided with turning handle 31, and turning handle is provided with through hole, and the structure of elasticity mounting ring includes：Link
70th, peg 71 and elastic telescopic frame, elastic telescopic frame include the first expansion bracket 73, the second expansion bracket 74 and stage clip 72.
There is the through hole that a peg passes through turning handle, one end of peg is provided with boss 77, and peg tangles turning handle by boss.Hang
One end of the other end of bar and two the first expansion brackets is hinged, and two the first expansion brackets are arranged on the symmetrical both sides of peg.First
The other end of expansion bracket is provided with the first spring shelves first 75.
One end of link and two the second expansion brackets is hinged, and two the second expansion brackets are arranged on the both ends of link.Second stretches
The other end of contracting frame is provided with second spring shelves first 76.There are two stage clips, each compression spring sleeve is in first expansion bracket and one
Outside two expansion brackets, both ends difference top pressure the first spring shelves head and second spring shelves head of stage clip.
When the driving hook of valve rod driving rotating disk pulls link, elastic telescopic frame produces elastic telescopic, realizes elasticity mounting
The function of ring.
Claims (10)
1. a kind of forced seal ball valve opens and closes drive device, it is arranged in forced seal ball valve, the forced seal ball valve includes
Valve ball, the valve ball are provided with closure and screw driving wheel, when the valve ball rotates to closed position, the screw driving wheel
Rotation is jacked up by screw thread and withdraws the closure, and the screw driving wheel is rotated by sealing drive wheel；Its feature exists
In the forced seal ball valve, which opens and closes drive device, includes sealed valve stem, valve ball valve rod, valve rod driving rotating disk and valve rod travel gear
Block, the sealed valve stem driving sealing driving wheel rotate, the valve rod driving rotating disk driving sealed valve stem rotation；The valve
Ball valve rod drives the valve ball to rotate, and the valve rod travel block controls the rotational travel of the valve ball valve rod；In the valve ball
The valve ball valve rod rotates simultaneously with the sealed valve stem in the rotational travel of valve rod, and turning to valve ball in the valve ball valve rod closes
After closed position, the valve ball valve rod turns to stop operating；The valve rod driving rotating disk continues to drive the sealed valve stem rotation and band
The dynamic screw driving wheel jacks up and withdrawn the closure.
2. a kind of forced seal ball valve according to claim 1 opens and closes drive device, it is characterised in that the forced seal
Ball valve opens and closes drive device and is provided with drive device casing, and the valve rod driving rotating disk is arranged in the drive device casing；Institute
State valve ball valve rod be provided with elasticity mounting ring, it is described elasticity mounting ring is rotated with the valve ball valve rod, it is described elasticity mount ring be
The rotation round direction of valve ball valve rod produces the elasticity mounting ring of elastic displacement, the drive device casing be provided with position correspondence in
The disengaging angle of wedge of the elasticity mounting ring and disengaging are linked up with, and the valve rod driving rotating disk is provided with the drive for pulling the elasticity to mount ring
Dynamic hook；When the valve ball valve rod turns to valve ball closed position, the disengaging angle of wedge is promoted described in the elasticity mounting ring disengaging
Driving hook is simultaneously linked into the disengaging hook.
3. a kind of forced seal ball valve according to claim 2 opens and closes drive device, it is characterised in that the drive device
Casing is provided with upper lid, and the disengaging angle of wedge and disengaging hook are arranged on the upper lid.
4. a kind of forced seal ball valve according to claim 2 opens and closes drive device, it is characterised in that the valve rod driving
Rotating disk is provided with position correspondence in the reset angle of wedge of the elasticity mounting ring, when the valve rod driving rotating disk rotates to opening direction
When, the reset angle of wedge promotion elasticity mounting ring disengaging is described to be departed from hook and is linked into the drive of the valve rod driving rotating disk
Dynamic hook.
5. a kind of forced seal ball valve according to claim 2 opens and closes drive device, it is characterised in that the valve ball valve rod
Provided with turning handle, the turning handle is provided with through hole, and the elasticity mounting ring includes link, peg and stage clip, and the peg passes through turning handle
The through hole, one end of the peg is hinged with the link, set respectively between the other end of the peg and the turning handle
There is a stage clip.
6. a kind of forced seal ball valve according to claim 2 opens and closes drive device, it is characterised in that the valve ball valve rod
Provided with turning handle, the turning handle is provided with through hole, and the elasticity mounting ring includes link, peg and elastic telescopic frame, and the peg is worn
The through hole of turning handle is crossed, the both ends of the link and peg respectively with the expansion bracket are hinged.
7. a kind of forced seal ball valve according to claim 6 opens and closes drive device, it is characterised in that the elastic telescopic
Frame includes the first expansion bracket, the second expansion bracket and stage clip, and one end of first expansion bracket is hinged with peg, and described first is flexible
The other end of frame is provided with the first spring shelves head, and second expansion bracket is hinged with the link, second expansion bracket it is another
End is provided with second spring shelves head, and the compression spring sleeve is on first expansion bracket and the second expansion bracket, the both ends point of the stage clip
First spring shelves head described in other top pressure and second spring shelves head.
8. a kind of forced seal ball valve according to claim 1 opens and closes drive device, it is characterised in that the forced seal
Ball valve opens and closes drive device and is provided with drive device casing, and the valve rod travel block includes closed position block and open position is kept off
Block, the valve ball valve rod are provided with turning handle；The closed position block and open position block are arranged on the drive device casing
On, the valve ball valve rod turns to turning handle during valve ball closed position and contacts the closed position block, the valve ball valve rod
Turn to turning handle during valve ball open position and contact the open position block.
9. a kind of forced seal ball valve according to claim 8 opens and closes drive device, it is characterised in that the closed position
Block and open position block are arranged on the drive device casing by block bolt, the closed position block and unlatching
Position stop and the contact surface of the turning handle are inclined-planes, and the block bolt is provided with locking nut.
10. a kind of forced seal ball valve according to claim 1 opens and closes drive device, it is characterised in that the valve rod drives
Turn disk is the turbine disk by worm drive.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710985209.1A CN107514489B (en) | 2017-10-20 | 2017-10-20 | Forced sealing ball valve opening and closing driving device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710985209.1A CN107514489B (en) | 2017-10-20 | 2017-10-20 | Forced sealing ball valve opening and closing driving device |
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| CN107514489A true CN107514489A (en) | 2017-12-26 |
| CN107514489B CN107514489B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710985209.1A Active CN107514489B (en) | 2017-10-20 | 2017-10-20 | Forced sealing ball valve opening and closing driving device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194698A (en) * | 2018-03-08 | 2018-06-22 | 淄博沃泰斯石化设备有限公司 | A kind of stepless locking device of valve rod |
| CN108278378A (en) * | 2018-02-01 | 2018-07-13 | 淄博沃泰斯石化设备有限公司 | A kind of valve seat driving forced seal ball valve |
| CN108426056A (en) * | 2018-04-17 | 2018-08-21 | 淄博沃泰斯石化设备有限公司 | A kind of side valve bar forced seal ball valve |
| CN110242770A (en) * | 2019-07-02 | 2019-09-17 | 李军 | A kind of three-way ball valve |
| CN111550597A (en) * | 2020-05-18 | 2020-08-18 | 邵玉强 | Ball valve |
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| CN108278378A (en) * | 2018-02-01 | 2018-07-13 | 淄博沃泰斯石化设备有限公司 | A kind of valve seat driving forced seal ball valve |
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| CN108426056B (en) * | 2018-04-17 | 2019-08-13 | 淄博沃泰斯石化设备有限公司 | A kind of side valve bar forced seal ball valve |
| CN110242770A (en) * | 2019-07-02 | 2019-09-17 | 李军 | A kind of three-way ball valve |
| CN111550597A (en) * | 2020-05-18 | 2020-08-18 | 邵玉强 | Ball valve |
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|---|---|
| CN107514489B (en) | 2024-04-12 |
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