CN104482253A - Combined valve - Google Patents
Combined valve Download PDFInfo
- Publication number
- CN104482253A CN104482253A CN201410688124.3A CN201410688124A CN104482253A CN 104482253 A CN104482253 A CN 104482253A CN 201410688124 A CN201410688124 A CN 201410688124A CN 104482253 A CN104482253 A CN 104482253A
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- CN
- China
- Prior art keywords
- valve
- ball
- gear
- stop valve
- stop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- F16K13/00—Other constructional types of cut-off apparatus; Arrangements for cutting-off
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
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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
- F16K1/02—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 with screw-spindle
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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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- 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
- F16K31/56—Mechanical actuating means without stable intermediate position, e.g. with snap action
- F16K31/563—Mechanical actuating means without stable intermediate position, e.g. with snap action for rotating or pivoting 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
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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
- F16K5/06—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 with plugs having spherical surfaces; Packings therefor
- F16K5/0657—Particular coverings or materials
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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
- F16K5/06—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 with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0684—Packings on the plug
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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
- F16K5/06—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 with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention provides a combined valve. The combined valve can be free of leakage for a long time under severe working conditions. The combined valve comprises a combined valve body, wherein a medium inlet and a ball valve cavity communicated with the medium inlet are formed in one side of the combined valve body, a medium outlet and a stop valve cavity communicated with the medium outlet are formed in the other side of the combined valve body, the ball valve cavity is communicated with the stop valve cavity, a stop valve element arranged in the stop valve cavity a is connected with stop valve rod, a handle is connected to one end of the stop valve rod, a ball valve ball body arranged in the ball valve cavity is connected with a ball valve rod, the ball valve rod is connected with an output shaft at one end of a speed reduction mechanism, the other end of the speed reduction mechanism is connected with a driving gear for driving the speed reduction mechanism to rotate, the driving gear is meshed with a transition gear, and the stop valve rod drives the transition gear to rotate. The combined valve is integrally designed, has few leakage points, and is more reliable in pipeline installation, and more convenient to operate.
Description
Technical field
The present invention relates to valve field, particularly a kind of combination brake switch and proporting.
Background technique
Valve is in fluid system, is used for controlling the device of the direction of fluid, pressure, flow, can makes the media flow in pipe arrangement and equipment or stopping, and can control its flow, usually have stop valve, stopcock, ball valve, butterfly valve, needle type valve, membrane valve etc.
In the running of thermal power plant, there is high temperature everywhere.Under the operating mode that high pressure etc. are severe, any one valve leak all can cause very large loss to power plant, and the loss of the valve leak of especially externally exhaust is larger.Such as: main steam bleeder valve, draining valve, sewage door etc.
Summary of the invention
The invention provides a kind of combination brake switch and proporting, solve operating mode severe, require long-term leak free problems with valves.
Technological scheme of the present invention is achieved in that
A kind of combination brake switch and proporting, comprise combinaing valve body, the ball valve chamber that the side of described combinaing valve body is provided with medium inlet and is communicated with medium inlet, the cut-off valve pocket that described combinaing valve body opposite side is provided with media outlet and is communicated with media outlet, ball valve chamber is connected with cut-off valve pocket, the cut-off spool be arranged in cut-off valve pocket is connected with stop valve valve rod, one end of stop valve valve rod is connected with handle, the ball valve core be arranged in ball valve chamber is connected with ball-valve valve rod, ball-valve valve rod is connected with the output shaft of reducing gear one end, the driving gear that the other end and the drive deceleration mechanism of reducing gear are rotated is connected, driving gear is meshed with transition gear, stop valve valve rod drives transition gear to rotate.
Wherein, preferably, also comprise gear housing, be solidly connected with described combinaing valve body, be arranged on above described combinaing valve body, described reducing gear, described driving gear and described band transition gear are all arranged in gear housing.
Wherein, preferably, the top of described gear housing is respectively arranged with clutch shaft bearing and the second bearing, and clutch shaft bearing is connected with the rotatingshaft of described driving gear, and the second bearing is connected with the rotatingshaft of described transition gear.
Wherein, preferably, described clutch shaft bearing is provided with clutch shaft bearing end cap, described second bearing is provided with the second bearing (ball) cover.
Wherein, preferably, the stop valve Stem Mut be fixedly connected with described stop valve valve rod is also comprised, guiding element is provided with along described stop valve Stem Mut, guiding element is fixedly connected with support, and support is fixed on described gear housing, and stop valve valve rod is connected with handle through support.
Wherein, preferably, described stop valve Stem Mut one end is connected with described support by the 3rd bearing, and the other end of stop valve valve pocket is connected with described guiding element by the 4th bearing, and stop valve stem outer circumference face is provided with the gear teeth be meshed with transition gear.
Wherein, preferably, described transition gear comprises First Transition gear and second transition gear of coaxial connection, and First Transition gear is meshed with described driving gear, and the second transition gear is meshed with the gear teeth in described stop valve stem outer circumference face.
Wherein, preferably, also comprise the first thin-walled guide pin bushing be made up of filler, first thin-walled guide pin bushing is set in the stop valve valve stem passage of described combinaing valve body, stop valve filler pad is provided with below first thin-walled guide pin bushing, be provided with stop valve hold-down grid above first thin-walled guide pin bushing, stop valve valve pressing plate is fixedly connected with described combinaing valve body by bolt.
Wherein, preferably, also comprise the second thin-walled guide pin bushing be made up of filler, second thin-walled guide pin bushing is arranged in the ball-valve valve rod passage of described combinaing valve body, ball valve filler pad is provided with below second thin-walled guide pin bushing, be provided with ball valve hold-down grid above second thin-walled guide pin bushing, ball valve hold-down grid is fixedly connected with described combinaing valve body by bolt.
Wherein, preferably, described reducing gear is planetary gear reducing mechanism.
Wherein, preferably, conflict place of described ball for ball valve and described combinaing valve body is provided with spool layer.
The state of ball valve advantage completely open and close all protects sealing surface, and shortcoming is because contact all the time in the switching process of metal sealing two sealing surfaces, and between them, frictional force increases along with pressure reduction before and after valve and increases.Frictional force is easy to very greatly damage sealing surface.
Stop valve advantage switching process can not damage sealing surface, but full-gear is easily scratched sealing surface by the impurity in medium.
When the present invention combines ball valve and stop valve, their advantage just compensate for shortcoming, utilize stop valve can be more delayed than ball valve in switching process, when opening, stop valve is delayed opens, ensure that before and after in the process that ball valve is opened, pressure reduction is little, stop valve delayed pass during pass, ensures that the moment pressure reduction that ball valve is closed again is very little.Thus protect ball valve sealing face, make whole valve energy long term zero leakage sealed.
Beneficial effect of the present invention:
1. integrated design, less leakage point, Pipe installing is more reliable, more convenient operation.
2. double-sealing design, makes valve seal performance better, effectively extends the valve zero leakage life-span, than common valve more working life of long several times.
3. two sealing surfaces, operate simultaneously, but switch has delayed, stop valve switch has delayed, thus decreases sphere metallic sealing section, and front and back pressure reduction makes force of sliding friction between the sealing surface of ball face sealing greatly fall, this increases the switch life of sealing surface more greatly, ensures that the valve long lifetime is run.
4. double-sealing all uses hardness refractory alloy, and carries out special surface cure process, surface hardness HRC40, and ball face sealing hardness HRC70, degree of finish △ 10 has very strong wear resistance.
5. speed reducer is reasonable in design, and switch moment is little.
6. valve seat disc spring provides continuous print mechanical pressure, ensure thermal stress change time spheroid and valve seat closely sealed all the time.Valve rod uses High Strength Steel, and the valve rod independently amplified, coordinate valve rod verge ring, ensure that centering and the stability of valve rod.Therefore the flexible stabilizing moment of switch is even support upper and lower two needle bearings.
7. the combined packing of double sealing ring, avoid external leakage. valve rod spool one all adopt high-strength stainless steel hardness high at sealing surface place built-up welding cobalt base alloy again, valve seat is built-up welding cobalt base alloy also, prevents egg shell phenomenon, even if also can keep longer working life in harsh application.Valve core sealed cover adopts cambered surface design, and valve body sealing surface is the conical surface, and cambered surface and the conical surface can form good sealing effect, no matter how to rotate and can form a whole circle sealing.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of embodiment of the present invention combination brake switch and proporting.
1. combinaing valve body 1, 2. medium inlet, 3. media outlet, 4. ball valve chamber, 5. end valve pocket, 6. end spool, 7. stop valve valve rod, 8. ball for ball valve, 9. ball-valve valve rod, 10. planetary gear reducing mechanism, 11. output shafts, 12. driving gears, 13. First Transition gears, 14. second transition gears, 15. ball seats, 16. ball valve entrance valve seats, 17. jump rings, 18. butterfly springs, 19. gear housings, 20. clutch shaft bearings, 21. clutch shaft bearing end caps, 22. second bearings, 23. second bearing (ball) covers, 24. guiding elements, 25. supports, 26 stop valve Stem Muts, 27. gear teeth, 28. the 3rd bearings, 29. the 3rd bearing glands, 30. the 4th bearings, 31. first thin-walled guide pin bushings, 32. stop valve filler pads, 33. stop valve hold-down grids, 34. second thin-walled guide pin bushings, 35. ball valve filler pads, 36. ball valve hold-down grids, 37. spool layers
Embodiment
Be clearly and completely described the technological scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the present embodiment provides a kind of combination brake switch and proporting, comprise combinaing valve body 1, the ball valve chamber 4 that the side of combinaing valve body 1 is provided with medium inlet 2 and is communicated with medium inlet 2, the cut-off valve pocket 5 that combinaing valve body 1 opposite side is provided with media outlet 3 and is communicated with media outlet 3, ball valve chamber 4 is connected with cut-off valve pocket 5, the cut-off spool 6 be arranged in cut-off valve pocket 5 is connected with stop valve valve rod 7, one end of stop valve valve rod 7 is connected with handle, the ball for ball valve 8 be arranged in ball valve chamber 4 is connected with ball-valve valve rod 9, ball-valve valve rod 9 is connected with the output shaft 11 of reducing gear one end, the driving gear 12 that the other end and the drive deceleration mechanism of reducing gear are rotated is connected, driving gear 12 is meshed with transition gear, stop valve valve rod 7 drives transition gear to rotate.Combination brake switch and proporting connects ball-valve valve rod 9 and cut-off valve rod by transition gear, rotates the handle of stop valve, synchronously can realize the opening and closing of ball valve and stop valve, simple to operate.
Wherein, ball seat 15 is provided with in ball valve chamber 4, the side of medium inlet 2 is provided with ball valve entrance valve seat 16, and ball valve entrance valve seat 16 is fixed by the jump ring 17 be arranged in the pipeline of medium inlet 2, is provided with butterfly spring 18 between ball valve entrance valve seat 16 and ball seat 15.The dismounting of ball valve is convenient in this setting, is beneficial to maintenance.
Wherein, also comprise gear housing 19, be solidly connected with combinaing valve body 1, be arranged on above combinaing valve body 1, reducing gear, driving gear 12 and band transition gear are all arranged in gear housing 19.The top of gear housing 19 is respectively arranged with clutch shaft bearing 20 and the second bearing 22, clutch shaft bearing 20 is connected with the rotatingshaft of driving gear 12, second bearing 22 is connected with the rotatingshaft of transition gear, clutch shaft bearing 20 is provided with on clutch shaft bearing end cap 21, second bearing 22 and is provided with the second bearing (ball) cover 23.
Wherein, also comprise the stop valve Stem Mut 26 be fixedly connected with stop valve valve rod 7, be provided with guiding element 24 along stop valve Stem Mut 26, guiding element 24 is fixedly connected with support 25, support 25 is fixed on gear housing 19, and stop valve valve rod 7 is connected with handle through support 25.
Wherein, stop valve Stem Mut 26 one end is connected with support 25 by the 3rd bearing 28, and the other end of stop valve valve pocket is connected with guiding element 24 by the 4th bearing 30, and stop valve stem outer circumference face is provided with the gear teeth 27 be meshed with transition gear.Transition gear comprises First Transition gear 13 and second transition gear 14 of coaxial connection, and First Transition gear 13 is meshed with driving gear 12, and the second transition gear 14 is meshed with the gear teeth 27 in stop valve stem outer circumference face.The rotatingshaft coaxial rotation of the gear teeth 27 and handle, thus drive ball-valve valve rod 9 to rotate.3rd bearing 28 is outside equipped with the 3rd bearing gland 29.
Wherein, also comprise the first thin-walled guide pin bushing 31 be made up of filler, first thin-walled guide pin bushing 31 is set in the stop valve valve stem passage of combinaing valve body 1, stop valve filler pad 32 is provided with below first thin-walled guide pin bushing 31, be provided with stop valve hold-down grid 33 above first thin-walled guide pin bushing 31, stop valve valve pressing plate is fixedly connected with combinaing valve body 1 by bolt.Thin-walled guide pin bushing and guide pad form valve stem passage jointly.Thin-walled guide pin bushing, on the one hand for moving up and down of valve rod provides guiding circulation passage, ensures the sealing on valve body top on the other hand.
Wherein, also comprise the second thin-walled guide pin bushing 34 be made up of filler, second thin-walled guide pin bushing 34 is arranged in ball-valve valve rod 9 passage of combinaing valve body 1, ball valve filler pad 35 is provided with below second thin-walled guide pin bushing 34, be provided with ball valve hold-down grid 36 above second thin-walled guide pin bushing 34, ball valve hold-down grid 36 is fixedly connected with combinaing valve body 1 by bolt.Thin-walled guide pin bushing and guide pad form valve stem passage jointly.Thin-walled guide pin bushing, on the one hand for moving up and down of valve rod provides guiding circulation passage, ensures the sealing on valve body top on the other hand.
Wherein, reducing gear is planetary gear reducing mechanism 10.Other speed reducers relatively, planetary speed reducer has high rigidity, highi degree of accuracy (single-stage can be accomplished within 1 point), high transmission efficiency (single-stage is at 97%-98%), therefore, uses and subtracts mechanism and can control ball valve and the synchronous opening and closing of stop valve accurately.
Wherein, ball for ball valve 8 is provided with spool layer 37 with conflict place of combinaing valve body 1.Conflict place of valve body and ball for ball valve 8 is provided with spool layer 37, in order to ball valve body and ball for ball valve 8 are better fitted on the one hand, ensure sealing therebetween, spool layer 37 is compared with the material of valve body on the other hand, hardness is comparatively large, farthest can extend the working life of stop valve.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a combination brake switch and proporting, comprise combinaing valve body, the ball valve chamber that the side of described combinaing valve body is provided with medium inlet and is communicated with medium inlet, the cut-off valve pocket that described combinaing valve body opposite side is provided with media outlet and is communicated with media outlet, ball valve chamber is connected with cut-off valve pocket, it is characterized in that: the stop valve spool be arranged in cut-off valve pocket is connected with stop valve valve rod, one end of stop valve valve rod is connected with handle, the ball for ball valve be arranged in ball valve chamber is connected with ball-valve valve rod, ball-valve valve rod is connected with the output shaft of reducing gear one end, the driving gear that the other end and the drive deceleration mechanism of reducing gear are rotated is connected, driving gear is meshed with transition gear, stop valve valve rod drives transition gear to rotate.
2. a kind of combination brake switch and proporting according to claim 1, it is characterized in that: also comprise gear housing, be solidly connected with described combinaing valve body, be arranged on above described combinaing valve body, described reducing gear, described driving gear and described band transition gear are all arranged in gear housing.
3. a kind of combination brake switch and proporting according to claim 2, it is characterized in that: the top of described gear housing is respectively arranged with clutch shaft bearing and the second bearing, clutch shaft bearing is connected with the rotatingshaft of described driving gear, and the second bearing is connected with the rotatingshaft of described transition gear; Described clutch shaft bearing is provided with clutch shaft bearing end cap, described second bearing is provided with the second bearing (ball) cover.
4. a kind of combination brake switch and proporting according to claim 2, it is characterized in that: also comprise the stop valve Stem Mut be fixedly connected with described stop valve valve rod, guiding element is provided with along described stop valve Stem Mut, guiding element is fixedly connected with support, support is fixed on described gear housing, and stop valve valve rod is connected with handle through support.
5. a kind of combination brake switch and proporting according to claim 4, it is characterized in that: described stop valve Stem Mut one end is connected with described support by the 3rd bearing, the other end of stop valve valve pocket is connected with described guiding element by the 4th bearing, and stop valve stem outer circumference face is provided with the gear teeth be meshed with transition gear.
6. a kind of combination brake switch and proporting according to claim 5, it is characterized in that: described transition gear comprises First Transition gear and second transition gear of coaxial connection, First Transition gear is meshed with described driving gear, and the second transition gear is meshed with the gear teeth in described stop valve stem outer circumference face.
7. a kind of combination brake switch and proporting according to claim 1, it is characterized in that: also comprise the first thin-walled guide pin bushing be made up of filler, first thin-walled guide pin bushing is set in the stop valve valve stem passage of described combinaing valve body, stop valve filler pad is provided with below first thin-walled guide pin bushing, be provided with stop valve hold-down grid above first thin-walled guide pin bushing, stop valve valve pressing plate is fixedly connected with described combinaing valve body by bolt.
8. a kind of combination brake switch and proporting according to claim 1, it is characterized in that: also comprise the second thin-walled guide pin bushing be made up of filler, second thin-walled guide pin bushing is arranged in the ball-valve valve rod passage of described combinaing valve body, ball valve filler pad is provided with below second thin-walled guide pin bushing, be provided with ball valve hold-down grid above second thin-walled guide pin bushing, ball valve hold-down grid is fixedly connected with described combinaing valve body by bolt.
9. a kind of combination brake switch and proporting according to claim 1, is characterized in that: described reducing gear is planetary gear reducing mechanism.
10. a kind of combination brake switch and proporting according to claim 1, is characterized in that: conflict place of described ball for ball valve and described combinaing valve body is provided with spool layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201410688124.3A CN104482253A (en) | 2014-11-25 | 2014-11-25 | Combined valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201410688124.3A CN104482253A (en) | 2014-11-25 | 2014-11-25 | Combined valve |
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CN104482253A true CN104482253A (en) | 2015-04-01 |
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ID=52756829
Family Applications (1)
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CN201410688124.3A Pending CN104482253A (en) | 2014-11-25 | 2014-11-25 | Combined valve |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104913095A (en) * | 2015-04-10 | 2015-09-16 | 湖南鸿远高压阀门有限公司 | Control method and device for opening and closing based on composite valve |
CN108869763A (en) * | 2018-09-18 | 2018-11-23 | 江苏海纬集团有限公司 | A kind of adjustable shut-off valve |
CN112664697A (en) * | 2020-12-30 | 2021-04-16 | 俞柔冰 | Main gas valve device for gas stove |
JP2021516750A (en) * | 2018-07-17 | 2021-07-08 | 浙江三花制冷集団有限公司 | Electric ball valve and its manufacturing method |
JP2022529193A (en) * | 2019-06-21 | 2022-06-17 | 浙江三花制冷集団有限公司 | Solenoid valve |
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CN202302247U (en) * | 2011-10-08 | 2012-07-04 | 余姚市河姆渡庆发实业有限公司 | Speed reduction gearbox for large-size polyethylene ball valve |
CN104048093A (en) * | 2013-03-15 | 2014-09-17 | 湖南鸿远高压阀门有限公司 | Combination valve driving mechanism and hard seal combination valve |
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Application publication date: 20150401 |