CN109237049A - A kind of fine adjustment control valve and its assembly method - Google Patents
A kind of fine adjustment control valve and its assembly method Download PDFInfo
- Publication number
- CN109237049A CN109237049A CN201811303133.0A CN201811303133A CN109237049A CN 109237049 A CN109237049 A CN 109237049A CN 201811303133 A CN201811303133 A CN 201811303133A CN 109237049 A CN109237049 A CN 109237049A
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- China
- Prior art keywords
- valve
- rod
- flap
- valve stem
- bracket
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Classifications
-
- 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
-
- 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
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/44—Details of seats or valve members of double-seat valves
-
- 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
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Lift Valve (AREA)
Abstract
The present invention relates to a kind of fine adjustment control valve and its assembly methods, it is characterized by: the valve further includes vertically arranged inner valve stem, the inner valve stem is mounted on inside upper valve rod, inner valve stem lower end extends downwardly into inside upper flap, inner valve stem lower part, which is equipped with, limits the inner valve stem limited block mobile relative to upper flap, the limited block is placed in inside upper flap, inner valve stem lower end is additionally provided with adjusting external screw thread, lift block and anti-rotation groove are additionally provided with inside upper flap, lift block top is equipped with the adjusting internal screw thread matched with adjusting external screw thread, the anti-rotation shin for protruding into anti-rotation groove is equipped with outside lift block, lower valve rod is extended upwardly into upper flap and is fixedly connected with lift block, upper valve rod top is additionally provided with gear-box, worm gear is equipped in gear-box, the worm gear forms a fixed connection with inner valve stem top, portion is equipped with the micromatic setting that can control worm gear rotation in the bracket, tool sealing The advantage that property is good, adjusting is stable, vibration proof is good.
Description
Technical field
The present invention relates to a kind of regulating valve more particularly to a kind of fine adjustment control valve and its assembly methods.
Background technique
Double seat regulating valve specifically includes that valve body, upper valve base, lower valve base, upper flap, lower Disc, valve inner be equipped with into
Mouth channel and exit passageway, intake channel lateral arrangement, exit passageway are arranged at horizontal y-type structure, intake channel and exit passageway
Between be equipped with the cavity wall of horizontal U-shaped structure, the top of cavity wall is arranged in upper valve base, and the lower part of cavity wall, upper and lower valve seat is arranged in lower valve base
Upper end be respectively equipped with upper and lower sealing surface of seat, upper and lower flap is fixed on the lower part of valve rod at tandem, upper and lower flap this
Equipped with lower valve rod, upper flap setting outlet upper part of channel, lower Disc setting is respectively equipped in the middle part of intake channel, upper and lower flap
Upper and lower valve clack sealing surface can control upper and lower valve clack sealing surface and upper and lower sealing surface of seat by moving up and down upper valve rod respectively
The distance between, so that playing the role of regulating valve goes out pressure, flow, and its shortcoming is that: due to mismachining tolerance, assembly etc.
Influence, when mobile upper valve rod, the distance between upper flap sealing surface and upper valve base sealing surface can not be with lower Disc sealing surfaces
The distance between lower valve base sealing surface is consistent, when needing to close the valve, is unable to reach whole sealing status, leakage rate is big, together
When upper flap and lower Disc between be fixedly installed, have processing difficulties, technological deficiency at high cost.
Summary of the invention
For technological deficiency existing in the prior art, the present invention provides a kind of using good airproof performance, adjusting stabilization, vibrationproof
A kind of good fine adjustment control valve of dynamic property and its assembly method.
The present invention realizes by following technical solution:
A kind of fine adjustment control valve, comprising: valve body, upper valve base, lower valve base, upper flap, lower Disc, valve deck, upper valve rod, bracket and
Driving device, valve inner are equipped with intake channel and exit passageway, and intake channel lateral arrangement, exit passageway is at horizontal y-type structure
Setting, is equipped with the cavity wall of horizontal U-shaped structure between intake channel and exit passageway, the top of cavity wall, lower valve base is arranged in upper valve base
The lower part of cavity wall is set, and the upper end of upper and lower valve seat is respectively equipped with upper and lower sealing surface of seat, and upper and lower flap is installed at tandem
Lower valve rod is equipped between the lower section of upper valve rod, upper and lower flap, lower valve rod lower end is fixedly connected with lower Disc, upper flap setting
On exit passageway top, lower Disc setting is respectively equipped with upper and lower valve clack sealing surface, valve deck in the middle part of intake channel, upper and lower flap
In valve body upper end, valve deck upper end is equipped with groove for setting, is equipped with filler in groove, groove top is additionally provided with gland, and gland is pressed downward
Tight filler, pedestal lower end are fixedly mounted on valve deck top, and the rack-mount portion of driving device, upper valve rod upper end upwardly penetrates through valve
Lid, groove and bracket protrude into driving device, it is characterised in that: the valve further includes vertically arranged inner valve stem, inner valve stem peace
Inside upper valve rod, inner valve stem lower end is extended downwardly into inside upper flap, inner valve stem lower part be equipped with limit the inner valve stem relative to
The mobile limited block of upper flap, the limited block are placed in inside upper flap, and inner valve stem lower end is additionally provided with adjusting external screw thread, in upper flap
Portion is additionally provided with lift block and anti-rotation groove, lift block top be equipped with the adjusting internal screw thread that adjusts external screw thread and match, outside lift block
Portion is equipped with the anti-rotation shin for protruding into anti-rotation groove, and lower valve rod is extended upwardly into upper flap and is fixedly connected with lift block, upper valve rod top
It is additionally provided with gear-box, is equipped with worm gear in gear-box, which forms a fixed connection with inner valve stem top, and portion is equipped with energy in the bracket
The micromatic setting of worm gear rotation is controlled, the micromatic setting includes left casing, adjusting rod, right casing, limiting device and handwheel, a left side
The side of casing and bracket forms hinged connection, and the other side of bracket is equipped with locking slot, and right casing passes through locking slot and stretches to branch
Outside frame, one end of adjusting rod passes through right inside pipe casing and protrudes into left inside pipe casing, and being equipped in the middle part of adjusting rod can be with worm wheel shape
At the worm screw of Worm Wheel System, handwheel is arranged in the other end of adjusting rod, and limiting device plank frame and is mounted on into strips
Stent outer, limiting device upper end and bracket form hinged connection, and limiting device lower part is equipped with bolt, which can screw in branch
Frame, thus fixed limiting device, fixed limiting device can make locking slot be separated into left and right locking slot, the valve body and valve deck
Between be equipped with guide sleeve, upper flap top be equipped with the guide rod being oriented to above and below, guide rod upper end and upper valve rod are formed with guide sleeve
Lower end is fixedly connected.
A kind of fine adjustment control valve assembly method of the present invention is as follows:
1. the assembling of valve body and upper and lower valve seat: the top of cavity wall is arranged in upper valve base, and the lower part of cavity wall is arranged in lower valve base, protects
It is face-up to hold upper and lower valve base sealing；
2. the assembling of upper valve rod, lower valve rod, upper flap, lower Disc and inner valve stem: guide rod is fixedly mounted on upper flap upper end,
Upper valve rod lower end is fixedly mounted on guide rod upper end, and gear-box is installed on the top of upper valve rod, and lower valve rod lower end is fixed with lower Disc
Connection is packed into limited block and lift block inside upper flap, protrudes into anti-rotation shin in anti-rotation groove, upper flap is protruded into lower valve rod upper end
Inside is simultaneously fixedly connected with lift block, and inner valve stem is installed inside upper valve rod, and inner valve stem lower end extends downwardly into inside upper flap, interior
Stem lower portion is fixedly connected with limited block, while rotating inner valve stem, and adjusting is made to screw into adjusting internal screw thread, and worm gear setting exists
In gear-box, worm gear is made to form a fixed connection with inner valve stem top；
3. the assembling of micromatic setting: the side of left casing and bracket forms hinged connection, and right casing passes through locking slot and stretches to branch
Outside frame, one end of adjusting rod passes through right inside pipe casing and protrudes into left inside pipe casing, keeps worm screw to be arranged in the middle part of adjusting rod, handwheel is set
The other end in adjusting rod is set, limiting device is mounted on stent outer, and limiting device upper end and bracket form hinged connection, spiral shell
Limiting device lower part is arranged in bolt in a manner of it can screw in back-out, it is ensured that when the bolt can screw in bracket, is capable of fixing limiting device
And locking slot can be made to be separated into left and right locking slot；
4. the assembling for the component that component and step 2 that step 1 is completed are completed: the component that step 1 is completed protects special lower Disc downward
Mode extended downwardly into from valve body top, keep upper flap be arranged on exit passageway top, be placed in the top of upper valve base, lower valve
Valve is arranged in intake channel, is placed in the top of lower valve base；
5. the assembling of valve deck, bracket and driving device: valve deck setting in valve body upper end, guiding be set on valve body and valve deck it
Between, keep guide rod and guide sleeve to form upper and lower guiding, filler setting compresses downwards filler, bracket in groove, and with gland
Lower end is fixedly mounted on valve deck top, and the rack-mount portion of driving device, upper valve rod upper end upwardly penetrates through valve deck, groove and branch
Frame protrudes into driving device, and is formed and connected with driving device, while when keeping pulling right casing and entering left locking slot, can make snail
Wheel is connect with worm screw；
6. pressure testing: carrying out pressurized seal test: closing valve then from intake channel input air and slowly boost to examination
Pressure is tested, observation exit passageway has No leakage；
7. a kind of fine adjustment control valve of pass the test is dried up, outer surface japanning, storage.
The present invention has the advantages that the setting of inner valve stem and micromatic setting, when opening/shutting valve, it is ensured that upper flap sealing surface and
The distance between upper valve base sealing surface is consistent with the distance between lower Disc sealing surface and lower valve base sealing surface, has good airproof performance
The advantages of；Have the advantages that simultaneously easy to process, at low cost；The setting of guide sleeve has the advantages that vibration proof is good；It is assembled
Method has the advantages that simple, quick, assembly qualified rate is high.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of fine adjustment control valve of the present invention.
Fig. 2 is the E-E diagrammatic cross-section of Fig. 1.
Specific embodiment
According to Fig. 1, Fig. 2 it is found that a kind of fine adjustment control valve, comprising: valve body 1, upper valve base 7, lower valve base 3, upper flap 6,
Lower Disc 4, valve deck 11, upper valve rod 12, bracket 16 and driving device 20 are equipped with intake channel 2 and exit passageway inside valve body 1
25,2 lateral arrangement of intake channel, exit passageway 25 is arranged at horizontal y-type structure, is equipped between intake channel 2 and exit passageway 25
The top of cavity wall is arranged in the cavity wall of horizontal U-shaped structure, upper valve base 7, and the lower part of cavity wall, upper and lower valve seat 7,3 is arranged in lower valve base 3
Upper end be respectively equipped with upper and lower sealing surface of seat, upper and lower flap 6,4 one-tenth tandems are mounted on the lower section of upper valve rod 12, above and below
Lower valve rod 5 is equipped between flap 6,4,5 lower end of lower valve rod is fixedly connected with lower Disc 4, and upper flap 6 is arranged on exit passageway 25
Portion, the setting of lower Disc 4 are respectively equipped with upper and lower valve clack sealing surface at intake channel 2, upper and lower 6,4 middle part of flap, and valve deck 11 is arranged
In 1 upper end of valve body, 11 upper end of valve deck is equipped with groove, is equipped with filler 14 in groove, and groove top is additionally provided with gland 15, gland 15 to
Lower compression filler 14,16 lower end of bracket are fixedly mounted on 11 top of valve deck, and driving device 20 is mounted on 16 top of bracket, upper valve rod
12 upper ends upwardly penetrate through valve deck 11, groove and bracket 16 and protrude into driving device 20,12 lower end of upper valve rod and the fixed company of upper flap 6
It connects, which further includes vertically arranged inner valve stem 13, which is mounted on inside upper valve rod 12, and 13 lower end of inner valve stem is downward
It protrudes into inside upper flap 6,13 lower part of inner valve stem, which is equipped with, limits the inner valve stem 13 limited block 9 mobile relative to upper flap, the limit
Position block 9 is placed in inside upper flap 6, and 13 lower end of inner valve stem is additionally provided with adjusting external screw thread, and 8 He of lift block is additionally provided with inside upper flap 6
Anti-rotation groove, 8 top of lift block are equipped with the adjusting internal screw thread matched with adjusting external screw thread, are equipped with outside lift block 8 and protrude into anti-rotation
The anti-rotation shin of slot, lower valve rod 5 are extended upwardly into upper flap 6 and are fixedly connected with lift block 8, and 12 top of upper valve rod is additionally provided with gear
Case 19, gear-box 19 is interior to be equipped with worm gear 18, which forms a fixed connection with 13 top of inner valve stem, be equipped in the middle part of bracket 16
It can control the micromatic setting of the rotation of worm gear 18, the micromatic setting includes left casing 17, adjusting rod 21, right casing 22, limit dress
23 and handwheel 24, the side formation hinged connection of left casing 17 and bracket 16 are set, the other side of bracket 16 is equipped with locking slot 26,
Right casing 22 passes through locking slot 26 and stretches to outside bracket 16, and one end of adjusting rod 21 passes through to be protruded into left casing 17 inside right casing 22
Portion, the worm screw to form Worm Wheel System can be matched with worm gear 18 by being equipped in the middle part of adjusting rod 21, and handwheel 24 is arranged in adjusting rod
21 other end, limiting device 23 plank frame and are mounted on the outside of bracket 16,23 upper end of limiting device and bracket 16 into strips
Hinged connection is formed, 23 lower part of limiting device is equipped with bolt, which can screw in bracket 16, thus fixed limiting device 23,
Fixed limiting device 23 can make locking slot 26 be separated into left and right locking slot, between 13 outer circle of inner valve stem and outer valve rod 12
Equipped with rubber seal, guide sleeve 10 is equipped between the valve body 1 and valve deck 11,6 top of upper flap is equipped with and 10 shape of guide sleeve
At the guide rod being oriented to above and below.
A kind of fine adjustment control valve assembly method of the present invention is as follows:
1. the assembling of valve body 1 and upper and lower valve seat 7,3: upper valve base, the top that cavity wall is arranged in, lower valve base 3 are arranged under cavity wall
Portion keeps upper and lower valve base sealing face-up；
2. the assembling of upper valve rod 12, lower valve rod 5, upper flap 6, lower Disc 4 and inner valve stem 13: guide rod is fixedly mounted on upper valve
6 upper end of valve, 12 lower end of upper valve rod are fixedly mounted on guide rod upper end, and gear-box 19 is installed on the top of upper valve rod 12, under lower valve rod 5
End is fixedly connected with lower Disc 4, and limited block 9 and lift block 8 are packed into inside upper flap 6, protrude into anti-rotation shin in anti-rotation groove, under
5 upper end of valve rod is protruded into 6 inside of upper flap and is fixedly connected with lift block 8, and inner valve stem 13 is installed inside upper valve rod 12, inner valve stem
13 lower ends extend downwardly into inside upper flap 6, and 13 lower part of inner valve stem is fixedly connected with limited block 8, while rotating inner valve stem 13, make to adjust
Section screws into adjusting internal screw thread, and worm gear 18 is arranged in gear-box 19, and worm gear 18 and 13 top of inner valve stem is made to form fixation
Connection；
3. the assembling of micromatic setting: the side of left casing 17 and bracket 16 forms hinged connection, and right casing 22 passes through locking slot
It stretches to outside bracket 16, one end of adjusting rod 21 passes through to be protruded into inside left casing 17 inside right casing 22, and worm screw setting is kept to adjust
The other end of adjusting rod 21 is arranged in 21 middle part of pole, handwheel 24, and limiting device 23 is mounted on 16 outside of bracket, limiting device 23
Upper end and bracket 16 form hinged connection, and 23 lower part of limiting device is arranged in bolt in a manner of it can screw in back-out, it is ensured that should
When bolt can screw in bracket 16, it is capable of fixing limiting device 23 and locking slot 26 can be made to be separated into left and right locking slot；
4. the assembling for the component that component and step 2 that step 1 is completed are completed: the component that step 1 is completed protects 4 court of special lower Disc
Under mode extended downwardly into from 1 top of valve body, keep upper flap 6 be arranged on 25 top of exit passageway, be placed in the upper of upper valve base 7
Side, lower Disc 4 are arranged in intake channel 2, are placed in the top of lower valve base 3；
5. the assembling of valve deck 11, bracket 16 and driving device 20: the setting of valve deck 11 is arranged in 1 upper end of valve body, guide sleeve 10 in valve
Between body 1 and valve deck 11, guide rod and guide sleeve 10 is kept to form upper and lower guiding, filler 14 is arranged in groove, and uses gland
15 compress downwards filler 14, and 16 lower end of bracket is fixedly mounted on 11 top of valve deck, and driving device 20 is mounted on 16 top of bracket, on
12 upper end of valve rod upwardly penetrates through valve deck 11, groove and bracket 16 and protrudes into driving device 20, and is formed and connected with driving device 20,
When keeping pulling the right left locking slot of the entrance of casing 22 simultaneously, worm gear 18 can be made to connect with worm screw；
6. pressure testing: carrying out pressurized seal test: closing valve then from 2 input air of intake channel and slowly boost to examination
Pressure is tested, observation exit passageway 25 has No leakage；
7. a kind of fine adjustment control valve of pass the test is dried up, outer surface japanning, storage.
Before using the valve, it is sealed test first, when valve is in close state, is passed through examination from intake channel
Medium is tested, observation exit passageway has No leakage, due to the influence of mismachining tolerance, assembly etc., upper flap sealing surface and upper valve
The distance between seat sealing surface can not be consistent with the distance between lower Disc sealing surface and lower valve base sealing surface, therefore is unable to reach
Whole sealing status.
When having formed sealing between upper flap sealing surface and upper valve base sealing surface, and lower Disc sealing surface and lower valve base sealing
When between face there are no sealing is formed, limiting device is unclamped, right casing is pulled and enters left locking slot, connect worm gear with worm screw,
Limiting device is retightened, handwheel is rotated clockwise, drives adjusting rod and worm screw rotation, the band in the way of Worm Wheel System
Dynamic inner valve stem rotation drives lift block, lower valve rod and lower Disc to moving down in the case where adjusting external screw thread and adjusting the cooperation of internal screw thread
It is dynamic, until lower Disc sealing surface and lower valve base sealing surface are formed and sealed, limiting device is then unclamped, right casing import is pulled and enters the right side
Locking slot is detached from worm gear and worm screw, retightens limiting device.
Instantly sealing has been formed between valve clack sealing surface and lower valve base sealing surface, and upper flap sealing surface and upper valve base seal
When between face there are no sealing is formed, limiting device is unclamped, right casing is pulled and enters left locking slot, connect worm gear with worm screw,
Limiting device is retightened, rotation hand wheel counterclockwise drives adjusting rod and worm screw rotation, the band in the way of Worm Wheel System
Dynamic inner valve stem rotation drives upper flap to move down in the case where adjusting external screw thread and adjusting the cooperation of internal screw thread, until upper flap is close
Cover and upper valve base sealing surface, which are formed, to be sealed, and is then unclamped limiting device, is pulled right casing import and enter right locking slot, make worm gear and
Worm screw is detached from, and retightens limiting device.
At this point, in the valve use process, when moving up and down upper valve rod, upper flap sealing surface and upper valve base sealing surface it
Between distance and the distance between lower Disc sealing surface and lower valve base sealing surface it is consistent.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (2)
1. a kind of fine adjustment control valve, comprising: valve body, upper valve base, lower valve base, upper flap, lower Disc, valve deck, upper valve rod, bracket and
Driving device, valve inner are equipped with intake channel and exit passageway, and intake channel lateral arrangement, exit passageway is at horizontal y-type structure
Setting, is equipped with the cavity wall of horizontal U-shaped structure between intake channel and exit passageway, the top of cavity wall, lower valve base is arranged in upper valve base
The lower part of cavity wall is set, and the upper end of upper and lower valve seat is respectively equipped with upper and lower sealing surface of seat, and upper and lower flap is installed at tandem
Lower valve rod is equipped between the lower section of upper valve rod, upper and lower flap, lower valve rod lower end is fixedly connected with lower Disc, upper flap setting
On exit passageway top, lower Disc setting is respectively equipped with upper and lower valve clack sealing surface, valve deck in the middle part of intake channel, upper and lower flap
In valve body upper end, valve deck upper end is equipped with groove for setting, is equipped with filler in groove, groove top is additionally provided with gland, and gland is pressed downward
Tight filler, pedestal lower end are fixedly mounted on valve deck top, and the rack-mount portion of driving device, upper valve rod upper end upwardly penetrates through valve
Lid, groove and bracket protrude into driving device, it is characterised in that: the valve further includes vertically arranged inner valve stem, inner valve stem peace
Inside upper valve rod, inner valve stem lower end is extended downwardly into inside upper flap, inner valve stem lower part be equipped with limit the inner valve stem relative to
The mobile limited block of upper flap, the limited block are placed in inside upper flap, and inner valve stem lower end is additionally provided with adjusting external screw thread, in upper flap
Portion is additionally provided with lift block and anti-rotation groove, lift block top be equipped with the adjusting internal screw thread that adjusts external screw thread and match, outside lift block
Portion is equipped with the anti-rotation shin for protruding into anti-rotation groove, and lower valve rod is extended upwardly into upper flap and is fixedly connected with lift block, upper valve rod top
It is additionally provided with gear-box, is equipped with worm gear in gear-box, which forms a fixed connection with inner valve stem top, and portion is equipped with energy in the bracket
The micromatic setting of worm gear rotation is controlled, the micromatic setting includes left casing, adjusting rod, right casing, limiting device and handwheel, a left side
The side of casing and bracket forms hinged connection, and the other side of bracket is equipped with locking slot, and right casing passes through locking slot and stretches to branch
Outside frame, one end of adjusting rod passes through right inside pipe casing and protrudes into left inside pipe casing, and being equipped in the middle part of adjusting rod can be with worm wheel shape
At the worm screw of Worm Wheel System, handwheel is arranged in the other end of adjusting rod, and limiting device plank frame and is mounted on into strips
Stent outer, limiting device upper end and bracket form hinged connection, and limiting device lower part is equipped with bolt, which can screw in branch
Frame, thus fixed limiting device, fixed limiting device can make locking slot be separated into left and right locking slot, the valve body and valve deck
Between be equipped with guide sleeve, upper flap top be equipped with the guide rod being oriented to above and below, guide rod upper end and upper valve rod are formed with guide sleeve
Lower end is fixedly connected.
2. a kind of fine adjustment control valve assembly method, the assembly method are as follows:
1) assembling of valve body and upper and lower valve seat: the top of cavity wall is arranged in upper valve base, and the lower part of cavity wall is arranged in lower valve base, protects
It is face-up to hold upper and lower valve base sealing；
2) assembling of upper valve rod, lower valve rod, upper flap, lower Disc and inner valve stem: guide rod is fixedly mounted in upper flap
End, upper valve rod lower end are fixedly mounted on guide rod upper end, and gear-box is installed on the top of upper valve rod, and lower valve rod lower end and lower Disc are solid
Fixed connection, limited block and lift block is packed into inside upper flap, protrudes into anti-rotation shin in anti-rotation groove, upper valve is protruded into lower valve rod upper end
It being fixedly connected inside valve and with lift block, inner valve stem is installed inside upper valve rod, and inner valve stem lower end extends downwardly into inside upper flap,
Inner valve stem lower part is fixedly connected with limited block, while rotating inner valve stem, and adjusting is made to screw into adjusting internal screw thread, worm gear setting
In gear-box, worm gear is made to form a fixed connection with inner valve stem top；
3) assembling of micromatic setting: the side of left casing and bracket forms hinged connection, and right casing passes through locking slot and stretches to branch
Outside frame, one end of adjusting rod passes through right inside pipe casing and protrudes into left inside pipe casing, keeps worm screw to be arranged in the middle part of adjusting rod, handwheel is set
The other end in adjusting rod is set, limiting device is mounted on stent outer, and limiting device upper end and bracket form hinged connection, spiral shell
Limiting device lower part is arranged in bolt in a manner of it can screw in back-out, it is ensured that when the bolt can screw in bracket, is capable of fixing limiting device
And locking slot can be made to be separated into left and right locking slot；
4) assembling for the component that the component and step 2 that step 1 is completed are completed: the component that step 1 is completed protects special lower Disc court
Under mode extended downwardly into from valve body top, keep upper flap be arranged on exit passageway top, be placed in the top of upper valve base, under
Flap is arranged in intake channel, is placed in the top of lower valve base；
5) assembling of valve deck, bracket and driving device: valve deck setting in valve body upper end, guiding be set on valve body and valve deck it
Between, keep guide rod and guide sleeve to form upper and lower guiding, filler setting compresses downwards filler, bracket in groove, and with gland
Lower end is fixedly mounted on valve deck top, and the rack-mount portion of driving device, upper valve rod upper end upwardly penetrates through valve deck, groove and branch
Frame protrudes into driving device, and is formed and connected with driving device, while when keeping pulling right casing and entering left locking slot, can make snail
Wheel is connect with worm screw；
6) it pressure testing: carries out pressurized seal test: closing valve then from intake channel input air and slowly boost to examination
Pressure is tested, observation exit passageway has No leakage；
7) dries up a kind of fine adjustment control valve of pass the test, outer surface japanning, storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811303133.0A CN109237049A (en) | 2018-11-02 | 2018-11-02 | A kind of fine adjustment control valve and its assembly method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811303133.0A CN109237049A (en) | 2018-11-02 | 2018-11-02 | A kind of fine adjustment control valve and its assembly method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109237049A true CN109237049A (en) | 2019-01-18 |
Family
ID=65076746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811303133.0A Withdrawn CN109237049A (en) | 2018-11-02 | 2018-11-02 | A kind of fine adjustment control valve and its assembly method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109237049A (en) |
-
2018
- 2018-11-02 CN CN201811303133.0A patent/CN109237049A/en not_active Withdrawn
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Application publication date: 20190118 |