CN104315190A - Valve element locking device for eccentric rotating valve - Google Patents
Valve element locking device for eccentric rotating valve Download PDFInfo
- Publication number
- CN104315190A CN104315190A CN201410477288.1A CN201410477288A CN104315190A CN 104315190 A CN104315190 A CN 104315190A CN 201410477288 A CN201410477288 A CN 201410477288A CN 104315190 A CN104315190 A CN 104315190A
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- Prior art keywords
- valve element
- valve core
- locking device
- locking
- hole
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention provides a valve element locking device for an eccentric rotating valve, which comprises a valve element, a valve element seat and a locking part, wherein the valve element and the valve element seat are assembled and connected by interference fit between a boss and a boss matching hole; a locking hole perpendicular to the axis of the boss matching hole is formed on the hole wall of the boss matching hole; the locking part passes through the locking hole to be connected with a connecting structure arranged on the boss so as to lock the valve core and the valve core seat; the locking part of the valve element locking device can be disassembled online. Compared with the prior art, the locking part of the valve element locking device is protected behind a spherical crown sealing face of the valve element, and thus, when the valve element works, the locking part cannot be flushed by fluid and locking is safe and reliable. Moreover, the valve element and the valve element seat of the valve element locking device have simple structures and are easy to process and the valve element can be replaced online, so that the equipment utilization rate is improved and the service life is prolonged and manufacturing cost of the valve element and the valve element seat is reduced; and meanwhile, manufacturing materials and processing technologies of the valve element and the spherical crown sealing face can be flexibly assembled, so that the valve element locking device can be well suitable for the requirements of different working conditions.
Description
Technical field
The present invention relates to the technical field of modulating valve, particularly a kind of eccentric rotary valve core locking device.
Background technique
Camflex valve absorbs the certain advantages of ball valve and butterfly valve, has that structure is simple, small in volume, to have compared with large rated flow coefficient, a series of advantage such as adjustable extent is large, serviceability temperature scope is wide, leakage rate is little and stability is high.Be specially adapted to that viscosity is large, the adjustment of slurry and granule medium and cut-out, be widely used in the industries such as oil, chemical industry, metallurgy, iron and steel, papermaking and Coal Chemical Industry.
Eccentric rotary valve core main in the market has two kinds of predominate architecture, Japanese mountain military VFR series camflex valve, and the Camflex series structure of Masoneilan (Masoneilan) company exploitation.As shown in Figure 1, two kinds of spools are spherical crown and supporting frame is overall structure.There is a centripetal moment at spool in this structure, drives eccentric Spool rotating by valve shaft, can fill in or depart from valve seat due to eccentric spool, is similar to a cam mechanism, can reduces friction and wear.This structure valve core profile is comparatively complicated, but spherical crown surface circularity, surface roughness, throw of eccentric tolerance of size etc. all affect valve seal performance, and this type valve core is higher to machining needs usually.
Camflex valve applying working condition is comparatively strict, and the process system that medium is starched with the what of particle is more.This kind of working condition requirement camflex valve has good wear-resistant and decay resistance.But there is following defect in existing camflex valve:
1, for integral type valve core
A, profile are irregular body, clamping difficulty in mechanical processing process, in spool spherical crown sealing surface machining, surface roughness, spherical crown circularity are all comparatively difficult to ensure card, usually all need to be aided with complicated frock clamping and ensure designing requirement;
B, integral type valve core are irregular due to profile, can only be shaping by forging type in structure, and valve ball crown surface treatment (chrome-faced, nitriding, sprayed wc, pile-up welding hard alloy) bothers, and monolithic construction Material selec-tion has narrow limitation;
2, for Split type valve core (Split type valve core that protective cap is separated with insert body)
A, protective cap material are comparatively single, considerably increase spool cost, and under different application background, adaptability is lower;
B, connection between protective cap and insert body cause spool not easily to change protective cap online and still add the manufacture difficulty of protective cap and insert body to a certain extent; Or the link between spool matrix and spool sphere is exposed to valve pocket MEDIA FLOW completely to direction, is easily caused spool to come off by fluid scouring in actual use and cannot use.
?
Summary of the invention
The object of the present invention is to provide a kind of eccentric rotary valve core locking device, can not change online to solve spool, the problem that spool utilization ratio is low.
The second object of the present invention is to provide a kind of eccentric rotary valve core locking device, too simple with the Placement solving existing Split type valve core structure, connects not firmly and link is easily affected the problem in spool life-span by fluid erosion.
The third object of the present invention is to provide a kind of eccentric rotary valve core locking device, single with the material solving existing valve core structure, and fabricating cost is high and to the poor problem of different application occasion adaptability.
For achieving the above object, the invention provides a kind of eccentric rotary valve core locking device, comprise spool, valve core case and locking element;
One end of described spool is spherical crown sealing surface, and the other end is boss, and described boss is provided with linkage structure; Described valve core case is provided with boss matching hole;
Described boss and described boss matching hole interference fit;
The hole wall of described boss matching hole is provided with the locking hole with its axis perpendicular, and described locking element is connected with described linkage structure through described locking hole locks; Wherein, locking element can be dismantled online.
Preferably, described linkage structure is sunk structure, and described locking element passes described locking hole and is connected together with described sunk structure and locks.
Preferably, described linkage structure is tapped hole, and one end of described locking element has the screw thread coordinated with described tapped hole, and the threaded one end of described locking element tool is passed described locking hole and is threaded with described tapped hole and locks.
Preferably, described locking element and described linkage structure are locked by being welded to connect.
Preferably, the material of described spool be Austenitic Stainless Steel, Martensitic Stain Less Steel, alloy just or PH Stainless Steel.
Preferably, the surface of described spherical crown sealing surface is the surface of nitriding, chromium plating or pile-up welding hard alloy.
Preferably, the surface spraying of described spherical crown sealing surface has nickel-base alloy or Co tungsten alloy.
Preferably, the surface of described spherical crown sealing surface is the surface of ion carbonization or carbonitriding.
Eccentric rotary valve core is carried out split-type design by a kind of eccentric rotary valve core locking device provided by the invention; wherein; the mode of spool and valve core case interference fit is connected and fixed; after having assembled, have dismountable locking element in its joint, and locking element is not at valve stream cavity direction; after locking element is protected in spool spherical crown cylindrical; in valve open process, after locking element is in spool spherical crown always, effectively protects locking element and do not arrived by fluid scouring.This structural safety is reliable.Meanwhile, this eccentric rotary valve core locking device simplifies the processing request of spool and valve core case, and spool can be changed online, improves utilization ratio and the working life of equipment Each part.
In the present invention, improve spherical crown sealing surface hardness mode and be not limited to surface spraying, surface overlaying cemented carbide etc., because spool is simple, adopt high carbon steel section bar bulk heat treatment mode to improve its hardness, or Austenitic Stainless Steel surface spraying, surface overlaying etc. all can meet working condition requirement.Material assembly flexibly, more reasonably meets working condition requirement, has distinct specific aim, and spool advantage of lower cost.
In sum, a kind of eccentric rotary valve core locking device provided by the invention can realize following beneficial effect:
1. spool can be changed online, reduces maintenance cost;
2. spool material can carry out flexible type selecting according to different operating mode, and material processing mode is changeable, and specific aim is stronger.Increase the service life;
3. valve core structure more easily realizes, and spherical crown sealing surface sphere size, circularity, roughness etc. require all not need frock clamping to ensure easily;
4. whole mangetic core assembly structure is simple, loads and unloads easy;
5. in mangetic core assembly, locking element is imbedded in spool spherical crown, and available protecting locking element is not washed.
Accompanying drawing explanation
Figure 1A, 1B are respectively VFR series and the serial camflex valve structural representation of Camflex;
Fig. 2 is a kind of eccentric rotary valve core locking device schematic diagram of the embodiment of the present invention one;
Fig. 3 is the spool sectional view of the embodiment of the present invention one;
Fig. 4 A, 4B are respectively valve core case plan view and the plan view of the embodiment of the present invention one.
Label declaration: 1-spool; 2-valve core case; 3-locking element; 4-valve rod; 5-guide sleeve; 6-linkage structure; 7-boss; 8-spherical crown sealing surface; 9-boss matching hole; 10-locking hole; 11-valve rod matching hole; 12-throw of eccentric.
Embodiment
For better the present invention being described, showing with preferred embodiment and coordinating accompanying drawing to elaborate to the present invention, specific as follows:
Embodiment one
As shown in Figure 2, be a kind of eccentric rotary valve core locking device provided by the present invention, comprise spool 1, valve core case 2 and locking element 3, structure shown in this Fig also comprises the valve rod 4 and guide sleeve 5 that are connected with valve core case 2, for controlling whole camflex valve.As shown in Figure 3, one end of spool 1 is spherical crown sealing surface 8, and the other end is boss 7, and boss 7 is provided with linkage structure 6.As shown in Figure 4 A, valve core case 2 is provided with boss matching hole 9, the hole wall of boss matching hole 9 is provided with the locking hole 10 with its axis perpendicular (namely perpendicular with vertical line direction, eccentric rotary valve body stream chamber), valve core case 2 is also provided with the valve rod matching hole 11 vertical with boss matching hole 9 simultaneously.As shown in Figure 4 B, valve core case 2 has the throw of eccentric 12 at valve rod 4 center needed for camflex valve and valve flowing channel center.After spool 1 and valve core case 2 have assembled, automatically can meet the throw of eccentric at spool 1 centre of sphere needed for camflex valve and valve rod 4 center.This camflex valve is two eccentric valves, makes the machining of valve core case simple, is easy to make.
When eccentric rotary valve core locking device is installed, boss 7 and boss matching hole 9 interference fit, and locked by the connection between locking element 3 and linkage structure 6.Wherein, locking element 3 can be dismantled online.Preferably, locking element 3 is connected with linkage structure 6 through locking hole 10 and locks.
In the present embodiment, linkage structure 6 is sunk structure, and as shown in Figure 1, locking element 3 passes locking hole 10 and is connected together with this sunk structure locks.
After spool 1 and valve core case 2 have assembled, because locking element 3 is arranged on vertical line direction, valve body stream chamber, therefore when the valve is open, after locking element 3 is in spool spherical crown sealing surface 8 always, effectively protects locking element 3 and do not arrived by fluid scouring.This Split type valve core completes machining by section bar completely, and structure is simple, and machining convenient mounting and clamping, does not need frock clamping, comparatively easily realizes the requirement to spherical crown size, sealing surface circularity, roughness in design.Spool boss face is with linkage structure, and this structure ensure that locking element connects spool and valve core case reliably, and spool can not rotate on valve core case with medium.Meanwhile, spool can be changed online, improves utilization ratio and the working life of equipment Each part.
Spool material can according to the conventional operating mode of camflex valve application, wash away operating mode, corrosive conditions etc. and select flexibly.For general mixture condition, the material of spool be Austenitic Stainless Steel, Martensitic Stain Less Steel, alloy just or PH Stainless Steel, as optional 1Cr13,304,316 etc.; For the medium containing particle, nitriding, chromium plating, pile-up welding hard alloy etc. can be carried out to spherical crown sealing surface; Wash away operating mode for High Pressure Difference such as Coal Chemical Industries, the spherical crown sealing surface of spool can carry out sealing surface spraying nickel-base alloy or Co tungsten alloy etc.Require corrosive conditions for salt chemical engineering etc., ion carbonization or carbonitriding process can be carried out in the surface of the spherical crown sealing surface of spool.The mode of this flexible selection can make camflex valve better to different application background adaptation, both can meet the demand of application as required, and can suitable preparation process selected in appropriate circumstances neatly to cut down finished cost and process complexity again.
Embodiment two:
In the present embodiment, except the structure of locking element and linkage structure and Placement between the two different except, the structure of remaining part, annexation and material are all identical with embodiment one.The linkage structure 6 of the present embodiment is tapped hole, and one end of locking element 3 has the screw thread coordinated with this tapped hole, and the threaded one end of locking element 3 tool is passed locking hole 10 and is threaded with this tapped hole and locks.
Certainly, can also be undertaken being connected locking by the mode of welding between locking element with linkage structure.In addition, each several part of the present invention alternate configurations and optional material can carry out combination in any according to the actual needs when not conflicting.
The structure of spool provided by the invention and valve core case reduces the machining needs of spool spherical crown sealing surface greatly.Meanwhile, for different processing mediums, spool material can be matched flexibly, under ensure that all kinds of operating mode, and wear-resisting, the corrosion-resistant requirement of valve.Ensure that the effective life cycle of valve, reduce maintenance cost.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those skilled in the art is in the technical scope that the present invention discloses; the distortion do the present invention or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (8)
1. an eccentric rotary valve core locking device, is characterized in that, comprises spool, valve core case and locking element;
One end of described spool is spherical crown sealing surface, and the other end is boss, and described boss is provided with linkage structure; Described valve core case is provided with boss matching hole;
Described boss and described boss matching hole interference fit;
The hole wall of described boss matching hole is provided with the locking hole with its axis perpendicular, and described locking element is connected with described linkage structure through described locking hole locks; Wherein, locking element can be dismantled online.
2. eccentric rotary valve core locking device according to claim 1, is characterized in that, described linkage structure is sunk structure, and described locking element passes described locking hole and is connected together with described sunk structure and locks.
3. eccentric rotary valve core locking device according to claim 1, it is characterized in that, described linkage structure is tapped hole, one end of described locking element has the screw thread coordinated with described tapped hole, and the threaded one end of described locking element tool is passed described locking hole and is threaded with described tapped hole and locks.
4. eccentric rotary valve core locking device according to claim 1, is characterized in that, described locking element and described linkage structure are locked by being welded to connect.
5. eccentric rotary valve core locking device according to claim 1, is characterized in that, the material of described spool be Austenitic Stainless Steel, Martensitic Stain Less Steel, alloy just or PH Stainless Steel.
6. eccentric rotary valve core locking device according to claim 1 or 5, is characterized in that, the surface of described spherical crown sealing surface is the surface of nitriding, chromium plating or pile-up welding hard alloy.
7. eccentric rotary valve core locking device according to claim 1 or 5, it is characterized in that, the surface spraying of described spherical crown sealing surface has nickel-base alloy or Co tungsten alloy.
8. eccentric rotary valve core locking device according to claim 1 or 5, it is characterized in that, the surface of described spherical crown sealing surface is the surface of ion carbonization or carbonitriding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477288.1A CN104315190A (en) | 2014-09-18 | 2014-09-18 | Valve element locking device for eccentric rotating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477288.1A CN104315190A (en) | 2014-09-18 | 2014-09-18 | Valve element locking device for eccentric rotating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104315190A true CN104315190A (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410477288.1A Pending CN104315190A (en) | 2014-09-18 | 2014-09-18 | Valve element locking device for eccentric rotating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104315190A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653808A (en) * | 2015-02-10 | 2015-05-27 | 无锡智能自控工程股份有限公司 | Valve ball conical surface locking structure of flushing-resistant eccentric ball valve |
| CN105909859A (en) * | 2016-06-13 | 2016-08-31 | 龙工（上海）精工液压有限公司 | Foot valve ejector column |
| CN108603604A (en) * | 2016-02-04 | 2018-09-28 | 爱三工业株式会社 | Flow control valve |
| CN109177957A (en) * | 2018-08-21 | 2019-01-11 | 吉林东光奥威汽车制动系统有限公司 | A kind of vacuum booster of pair of input power push rod limit |
| CN111853271A (en) * | 2019-04-24 | 2020-10-30 | 上海弘盛特种阀门制造股份有限公司 | Top-mounted rotary ball valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0116530A1 (en) * | 1983-02-14 | 1984-08-22 | Fisher Controls International, Inc. | Cam valve self-centering seat |
| CN2814051Y (en) * | 2005-07-20 | 2006-09-06 | 王卫国 | Eccentric half ball valve |
| CN201526471U (en) * | 2009-10-16 | 2010-07-14 | 邵建农 | Semi-sphere type slurry pump control valve |
| CN201963934U (en) * | 2011-02-15 | 2011-09-07 | 施大钟 | Valve core structure of eccentric rotating valve |
| CN203641547U (en) * | 2013-09-30 | 2014-06-11 | 丁显丰 | Hard-seal fixed ball valve |
| CN204127380U (en) * | 2014-09-18 | 2015-01-28 | 浙江中控流体技术有限公司 | A kind of eccentric rotary valve core locking mechanism |
-
2014
- 2014-09-18 CN CN201410477288.1A patent/CN104315190A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0116530A1 (en) * | 1983-02-14 | 1984-08-22 | Fisher Controls International, Inc. | Cam valve self-centering seat |
| CN2814051Y (en) * | 2005-07-20 | 2006-09-06 | 王卫国 | Eccentric half ball valve |
| CN201526471U (en) * | 2009-10-16 | 2010-07-14 | 邵建农 | Semi-sphere type slurry pump control valve |
| CN201963934U (en) * | 2011-02-15 | 2011-09-07 | 施大钟 | Valve core structure of eccentric rotating valve |
| CN203641547U (en) * | 2013-09-30 | 2014-06-11 | 丁显丰 | Hard-seal fixed ball valve |
| CN204127380U (en) * | 2014-09-18 | 2015-01-28 | 浙江中控流体技术有限公司 | A kind of eccentric rotary valve core locking mechanism |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653808A (en) * | 2015-02-10 | 2015-05-27 | 无锡智能自控工程股份有限公司 | Valve ball conical surface locking structure of flushing-resistant eccentric ball valve |
| CN108603604A (en) * | 2016-02-04 | 2018-09-28 | 爱三工业株式会社 | Flow control valve |
| CN108603604B (en) * | 2016-02-04 | 2019-10-08 | 爱三工业株式会社 | Flow control valve |
| CN105909859A (en) * | 2016-06-13 | 2016-08-31 | 龙工（上海）精工液压有限公司 | Foot valve ejector column |
| CN109177957A (en) * | 2018-08-21 | 2019-01-11 | 吉林东光奥威汽车制动系统有限公司 | A kind of vacuum booster of pair of input power push rod limit |
| CN111853271A (en) * | 2019-04-24 | 2020-10-30 | 上海弘盛特种阀门制造股份有限公司 | Top-mounted rotary ball valve |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150128 |
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| RJ01 | Rejection of invention patent application after publication |