CN109163105A - A kind of double stub shaft regulating valve and its assembly method - Google Patents
A kind of double stub shaft regulating valve and its assembly method Download PDFInfo
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- CN109163105A CN109163105A CN201811303171.6A CN201811303171A CN109163105A CN 109163105 A CN109163105 A CN 109163105A CN 201811303171 A CN201811303171 A CN 201811303171A CN 109163105 A CN109163105 A CN 109163105A
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
- B23P21/004—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control the units passing two or more work-stations whilst being composed
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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
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
- F16K1/487—Attaching valve members to screw-spindles by a fixing element extending in the axial direction of the spindle, e.g. a screw
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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
- F16K31/53—Mechanical actuating means with toothed gearing
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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
- F16K31/60—Handles
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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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The present invention relates to a kind of double stub shaft regulating 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, the regulating device that can control worm gear rotation is additionally provided in the middle part of gear-box, Have the advantages that good airproof performance, vibration proof are good, assembly method has the advantages that simple, quick, assembly qualified rate is high.
Description
Technical field
The present invention relates to a kind of regulating valve more particularly to a kind of double stub shaft regulating valves and its assembly method.
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
Dynamic property good a kind of double stub shaft regulating valve and its assembly method.
The present invention realizes by following technical solution:
A kind of double stub shaft regulating 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, intake channel lateral arrangement, exit passageway is at horizontal Y type knot
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 is arranged in upper valve base
The lower part of cavity wall is arranged in seat, 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 pacified at tandem
Mounted in the lower section of upper valve rod, lower valve rod is equipped between upper and lower flap, lower valve rod lower end is fixedly connected with lower Disc, and upper flap is set
It sets on exit passageway top, lower Disc setting is respectively equipped with upper and lower valve clack sealing surface, valve 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 lid setting, is equipped with filler in groove, groove top is additionally provided with gland, and gland is downward
Filler is compressed, pedestal 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 bracket protrude into driving device, it is characterised in that: the valve further includes vertically arranged inner valve stem, the inner valve stem
It is mounted on inside upper valve rod, inner valve stem lower end extends downwardly into inside upper flap, and inner valve stem lower part is opposite equipped with the inner valve stem is limited
In the mobile limited block of upper flap, which is placed in inside upper flap, and inner valve stem lower end is additionally provided with adjusting external screw thread, upper flap
Inside is additionally provided with lift block and anti-rotation groove, and lift block top is equipped with the adjusting internal screw thread matched with adjusting external screw thread, lift block
Outside 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, on upper valve rod
Portion is additionally provided with gear-box, is equipped with worm gear in gear-box, which forms a fixed connection with inner valve stem top, in the middle part of gear-box also
Equipped with the regulating device that can control worm gear rotation, the regulating device includes left casing, adjusting rod, right casing and handwheel, left set
Pipe is fixed at the side of gear-box, and right casing is fixed at the other side of gear-box, and one end of adjusting rod passes through right set
Left inside pipe casing is protruded into inside pipe, the worm screw for forming Worm Wheel System with worm wheel is equipped in the middle part of adjusting rod, and handwheel is set
Set the other end in adjusting rod, between the valve body and valve deck be equipped with guide sleeve, upper flap top be equipped with formed with guide sleeve,
The guide rod of lower guiding, upper valve rod lower end are fixedly connected with guide rod upper end, are equipped between the inner valve stem outer circle and upper valve rod
Rubber seal.
A kind of double stub shaft regulating 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
Internal to be simultaneously fixedly connected with lift block, inner valve stem is installed inside upper valve rod, rubber seal be mounted on inner valve stem outer circle with it is upper
Between valve rod, inner valve stem lower end is extended downwardly into inside upper flap, and inner valve stem lower part is fixedly connected with limited block, while rotating internal valve
Bar makes adjusting screw into adjusting internal screw thread, and worm gear is arranged in gear-box, and worm gear and inner valve stem top is made to form fixed company
It connects；
3. the assembling of regulating device: left casing is fixed at the side of gear-box, and right casing is fixed at the another of gear-box
Side, one end of adjusting rod pass through right inside pipe casing and protrude into left inside pipe casing, and worm screw is placed in the middle part of adjusting rod, while making worm screw
Worm Wheel System is formed with worm wheel, the other end of adjusting rod is arranged in handwheel；
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；
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. by a kind of band displacement micromatic setting regulating valve drying of pass the test, outer surface japanning, storage.
The present invention has the advantages that the setting of inner valve stem and regulating device, 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 double stub shaft regulating valve of the present invention.
Specific embodiment
As can be seen from FIG. 1, a kind of double stub shaft regulating valve, comprising: valve body 1, upper valve base 7, lower valve base 3, upper flap 6, under
Flap 4, valve deck 11, upper valve rod 12, bracket 16 and driving device 20 are equipped with intake channel 2 and exit passageway 24 inside valve body 1,
2 lateral arrangement of intake channel, exit passageway 24 are arranged at horizontal y-type structure, and horizontal U is equipped between intake channel 2 and exit passageway 24
The cavity wall of type structure, upper valve base 7 are arranged in the top of cavity wall, and lower valve base 3 is arranged in the lower part of cavity wall, upper and lower valve seat 7,3 it is upper
End is respectively equipped with upper and lower sealing surface of seat, and upper and lower flap 6,4 one-tenth tandems are mounted on the lower section of upper valve rod 12, upper and lower flap
6, lower valve rod 5 is equipped between 4,5 lower end of lower valve rod is fixedly connected with lower Disc 4, and upper flap 6 is arranged on 24 top of exit passageway,
The setting of lower Disc 4 is 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 valve
1 upper end of body, 11 upper end of valve deck are equipped with groove, are equipped with filler 14 in groove, groove top is additionally provided with gland 15, and gland 15 is pressed downward
Tight 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, on upper valve rod 12
End upwardly penetrates through valve deck 11, groove and bracket 16 and protrudes into driving device 20, which further includes vertically arranged inner valve stem 13, should
Inner valve stem 13 is mounted on inside upper valve rod 12, and 13 lower end of inner valve stem extends downwardly into inside upper flap 6, and 13 lower part of inner valve stem is equipped with limit
The inner valve stem 13 limited block 9 mobile relative to upper flap 6 is made, which is placed in inside upper flap 6,13 lower end of inner valve stem
It is additionally provided with adjusting external screw thread, lift block 8 and anti-rotation groove are additionally provided with inside upper flap 6,8 top of lift block is equipped with and adjusts external screw thread
The adjusting internal screw thread matched, the anti-rotation shin for protruding into anti-rotation groove is equipped with outside lift block 8, and lower valve rod 5 extends upwardly into upper flap 6
And be fixedly connected with lift block 8,12 top of upper valve rod is additionally provided with gear-box 19, is equipped with worm gear 18, the worm gear 18 in gear-box 19
It forms a fixed connection with 13 top of inner valve stem, the regulating device that can control worm gear rotation is additionally provided in the middle part of gear-box 19, it is described
Regulating device includes left casing 17, adjusting rod 21, right casing 22 and handwheel 23, and left casing 17 is fixed at the one of gear-box 19
Side, right casing 22 are fixed at the other side of gear-box 19, and one end of adjusting rod 21 passes through and protrudes into left set inside right casing 22
It inside pipe 17, is equipped in the middle part of adjusting rod 21 and matches the worm screw to form Worm Wheel System with worm gear 18, the setting of handwheel 23 is being adjusted
The other end of pole 21 is equipped with rubber seal, the valve body 1 and valve deck 11 between 13 outer circle of inner valve stem and outer valve rod 12
Between be equipped with guide sleeve 10,6 top of upper flap is equipped with and with guide sleeve 10 forms the guide rod being oriented to above and below, 12 lower end of upper valve rod
It is fixedly connected with guide rod upper end, rubber seal is equipped between 13 outer circle of inner valve stem and upper valve rod 12.
A kind of band displacement micromatic setting regulating 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: the top of cavity wall is arranged in upper valve base 7, and lower valve base 3 is 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, and rubber is close
Seal is mounted between 13 outer circle of inner valve stem and upper valve rod 12, and 13 lower end of inner valve stem extends downwardly into inside upper flap 6, inner valve stem 13
Lower part is fixedly connected with limited block 9, while rotating inner valve stem 13, and adjusting is made to screw into adjusting internal screw thread, and worm gear 18 is arranged
In gear-box 19, worm gear 18 is made to form a fixed connection with 13 top of inner valve stem；
3. the assembling of regulating device: left casing 17 is fixed at the side of gear-box 19, and right casing 22 is fixed at gear
The other side of case 19, one end of adjusting rod 21 passes through to be protruded into inside left casing 17 inside right casing 22, and worm screw is placed in adjusting rod 21
Middle part, while worm screw 18 and worm wheel being made to form Worm Wheel System, the other end of adjusting rod 21 is arranged in handwheel 23；
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 24 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；
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 24 has No leakage；
7. by a kind of band displacement micromatic setting regulating valve drying of pass the test, 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, handwheel is rotated clockwise, adjusting rod and worm screw rotation is driven, utilizes Worm Wheel System
Mode drives inner valve stem to rotate, and in the case where adjusting external screw thread and adjusting the cooperation of internal screw thread, drives lift block, lower valve rod and lower Disc
It moves down, until lower Disc sealing surface and lower valve base sealing surface are formed and sealed.
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, rotation hand wheel counterclockwise drives adjusting rod and worm screw rotation, utilizes Worm Wheel System
Mode drives inner valve stem to rotate, and in the case where adjusting external screw thread and adjusting the cooperation of internal screw thread, upper flap is driven to move down, until upper
Valve clack sealing surface and upper valve base sealing surface, which are formed, to be sealed.
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 double stub shaft regulating 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, intake channel lateral arrangement, exit passageway is at horizontal Y type knot
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 is arranged in upper valve base
The lower part of cavity wall is arranged in seat, 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 pacified at tandem
Mounted in the lower section of upper valve rod, lower valve rod is equipped between upper and lower flap, lower valve rod lower end is fixedly connected with lower Disc, and upper flap is set
It sets on exit passageway top, lower Disc setting is respectively equipped with upper and lower valve clack sealing surface, valve 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 lid setting, is equipped with filler in groove, groove top is additionally provided with gland, and gland is downward
Filler is compressed, pedestal 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 bracket protrude into driving device, it is characterised in that: the valve further includes vertically arranged inner valve stem, the inner valve stem
It is mounted on inside upper valve rod, inner valve stem lower end extends downwardly into inside upper flap, and inner valve stem lower part is opposite equipped with the inner valve stem is limited
In the mobile limited block of upper flap, which is placed in inside upper flap, and inner valve stem lower end is additionally provided with adjusting external screw thread, upper flap
Inside is additionally provided with lift block and anti-rotation groove, and lift block top is equipped with the adjusting internal screw thread matched with adjusting external screw thread, lift block
Outside 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, on upper valve rod
Portion is additionally provided with gear-box, is equipped with worm gear in gear-box, which forms a fixed connection with inner valve stem top, in the middle part of gear-box also
Equipped with the regulating device that can control worm gear rotation, the regulating device includes left casing, adjusting rod, right casing and handwheel, left set
Pipe is fixed at the side of gear-box, and right casing is fixed at the other side of gear-box, and one end of adjusting rod passes through right set
Left inside pipe casing is protruded into inside pipe, the worm screw for forming Worm Wheel System with worm wheel is equipped in the middle part of adjusting rod, and handwheel is set
Set the other end in adjusting rod, between the valve body and valve deck be equipped with guide sleeve, upper flap top be equipped with formed with guide sleeve,
The guide rod of lower guiding, upper valve rod lower end are fixedly connected with guide rod upper end, are equipped between the inner valve stem outer circle and upper valve rod
Rubber seal.
2. a kind of double stub shaft regulating valve assembly method, 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. 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
Internal to be simultaneously fixedly connected with lift block, inner valve stem is installed inside upper valve rod, rubber seal be mounted on inner valve stem outer circle with it is upper
Between valve rod, inner valve stem lower end is extended downwardly into inside upper flap, and inner valve stem lower part is fixedly connected with limited block, while rotating internal valve
Bar makes adjusting screw into adjusting internal screw thread, and worm gear is arranged in gear-box, and worm gear and inner valve stem top is made to form fixed company
It connects；
The assembling of regulating device: left casing is fixed at the side of gear-box, and right casing is fixed at the another of gear-box
Side, one end of adjusting rod pass through right inside pipe casing and protrude into left inside pipe casing, and worm screw is placed in the middle part of adjusting rod, at the same make worm screw with
Worm wheel forms Worm Wheel System, and the other end of adjusting rod is arranged in handwheel；
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；
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) stores a kind of band displacement micromatic setting regulating valve drying of pass the test, outer surface japanning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811303171.6A CN109163105B (en) | 2018-11-02 | 2018-11-02 | double-valve-rod regulating valve and assembling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811303171.6A CN109163105B (en) | 2018-11-02 | 2018-11-02 | double-valve-rod regulating valve and assembling method thereof |
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| CN109163105A true CN109163105A (en) | 2019-01-08 |
| CN109163105B CN109163105B (en) | 2019-12-06 |
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| CN201811303171.6A Active CN109163105B (en) | 2018-11-02 | 2018-11-02 | double-valve-rod regulating valve and assembling method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110303319A (en) * | 2019-07-22 | 2019-10-08 | 中国电建集团河南工程有限公司 | The method constructed to east 660MW novel valve |
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| SE9500658D0 (en) * | 1995-02-22 | 1995-02-22 | Danfoss As | STOP vALVE |
| CN205298696U (en) * | 2015-12-18 | 2016-06-08 | 纽威阀门有限公司 | Bivalve lamella cast steel stop valve |
| CN205781167U (en) * | 2016-05-26 | 2016-12-07 | 上海白云泵阀制造有限公司 | Dynamic balance electric regulating valve |
| CN206972960U (en) * | 2017-03-17 | 2018-02-06 | 永康市良工阀门有限公司 | A kind of double spool flow throttling ball valves |
| CN107191614A (en) * | 2017-05-25 | 2017-09-22 | 刘晓琦 | A kind of forced seal ball valve with scroll spring arrangement of clutch |
| CN206845969U (en) * | 2017-06-29 | 2018-01-05 | 苏州知瑞光电材料科技有限公司 | A kind of ball valve for biochemical reaction emission-control equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110303319A (en) * | 2019-07-22 | 2019-10-08 | 中国电建集团河南工程有限公司 | The method constructed to east 660MW novel valve |
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