CN104405909A - Three-eccentric butterfly valve - Google Patents
Three-eccentric butterfly valve Download PDFInfo
- Publication number
- CN104405909A CN104405909A CN201410676532.7A CN201410676532A CN104405909A CN 104405909 A CN104405909 A CN 104405909A CN 201410676532 A CN201410676532 A CN 201410676532A CN 104405909 A CN104405909 A CN 104405909A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve shaft
- pin
- mounting
- plate
- 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
Links
- 238000007789 sealing Methods 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
- F16K1/482—Attaching valve members to screw-spindles with a collar on the spindle or a groove in the spindle, by which a fixing element is supported, the spindle reaching into the valve member
- F16K1/485—Attaching valve members to screw-spindles with a collar on the spindle or a groove in the spindle, by which a fixing element is supported, the spindle reaching into the valve member with a groove in the spindle
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
- F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
-
- 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
- F16K1/16—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 pivoted closure-members
- F16K1/18—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 pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention provides a three-eccentric butterfly valve. The three-eccentric butterfly valve comprises a valve body, a valve plate and a valve shaft, wherein the valve plate is arranged in the valve body by the valve shaft; one side of the valve plate is provided with two valve shaft mounting seats with valve shaft mounting holes; the valve shaft is arranged in the two valve shaft mounting holes in a penetrating manner; the first valve shaft mounting seat is fixedly connected with the valve shaft by a pin I which is vertical to the valve shaft and the valve plate at the same time; the second valve shaft mounting seat is fixedly connected with the valve shaft by two cylindrical pins II which are parallel to each other; the axes of the pins II are vertical to the valve shaft and are parallel to the valve plate; the pins II are provided with mounting planes and inclined angles are formed between the mounting planes and the axes of the pins II; two pin II mounting holes are formed in the second valve shaft mounting seat; mounting platforms matched with the mounting planes are arranged at the positions, corresponding to the pins II, on the valve shaft; thread holes are formed in the small ends of the pins II and are internally provided with backstop bolts. The pins II can be prevented from quitting and a hole shaft gap can be eliminated; the friction of a hole shaft is reduced and the service life of the valve is prolonged.
Description
Technical field
The present invention relates to a kind of butterfly valve of pipeline, especially a kind of three eccentric butterfly valve.
Background technique
Butterfly valve is as opening or the valve of medium of closing duct and equipment, and play a part to regulate and dam in pipeline and equipment, at oil, rock gas, the fields such as chemical industry have a wide range of applications.Butterfly valve more advanced in prior art is three eccentric butterfly valve, and valve body and valve seat are disjunctor component, valve seat sealing surface layer built-up welding heatproof, corrosion resistant alloy material, and the soft stacked seal ring of multilayer is fixed on valve plate.
As shown in Figure 1, because the eccentric A of a biased size between valve shaft axis and sealing surface of valve plate, and and a size bias is biased between valve channel
b, valve seat rotational axis and valve channel axis form the eccentric C of an eccentric angle, therefore form three eccentricity.Butterfly valve is when opening for 0 °-90 °, sealing surface of valve plate can depart from sealing surface of seat immediately in the moment of opening, when closing for 90 °-0 °, the moment of only closing, its valve plate conical sealing face just can contact and compress the sealing of valve seat taper shape, so between sealing surface on valve seat and valve plate without any friction, the possibility eliminating wearing and tearing and leak.
This butterfly valve also has high temperature resistant compared with traditional butterfly valve, operates light, comes compensation sealing, the sealability that improve butterfly valve and the advantage increased the service life during closedown along with the moment of driving mechanism increases.
But in the application of reality, in order to the convenience of repair demolition, valve shaft and valve plate mounting hole normally Spielpassung, the while of then adopting pin and valve shaft and valve plate, vertically disposed mode fixes and is connected valve shaft and valve plate, such Placement, or be that tension not easily detachable maintaining installed by pin, be pin partially pine be in use easy to exit, thus causing following problem: sealing surface of valve plate can not depart from sealing surface of seat immediately in the moment of opening, but there is certain delay, butterfly valve also can not cut out due to the existence in this gap fast when cutting out, this not only causes the deviations in accuracy of open and close action, and cause further wearing and tearing between valve shaft and mounting hole, thus reduce the working life of whole butterfly valve, the existence of hole shaft clearance also can cause aggressive medium in pipeline to the corrosion of valve shaft and mounting hole in addition, when pin exits serious, even there is the phenomenon that valve plate can not normally be opened, thus bring hidden danger for safety in production.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of three eccentric butterfly valve.
The present invention is in order to solve the problems of the technologies described above, and the technological scheme adopted is: a kind of three eccentric butterfly valve, comprise valve body, valve plate and valve shaft, described valve plate is arranged in valve body rotationally by valve shaft, the sealing surface coordinated with valve body is circumferentially provided with at valve plate, the first valve shaft fitting seat and the second valve shaft fitting seat is provided with in the side of valve plate, the valve shaft mounting hole passed through for valve shaft is equipped with in two valve shaft fitting seats, two described valve shaft mounting holes are through hole, and the center line of two valve shaft mounting holes coincides, described valve shaft is located in two valve shaft mounting holes, first valve shaft fitting seat is fixedly connected with pin I vertical while of valve plate with valve shaft by one with between valve shaft, second valve shaft fitting seat is fixedly connected with the columniform pin II be arranged in parallel by two between valve shaft, axis and the valve shaft of described pin II are perpendicular, and parallel with valve plate, described pin II is provided with the mounting plane of the axis with pin II axis with tilt angle, second valve shaft fitting seat is provided with two pin II mounting holes connected with the valve shaft mounting hole of the second valve shaft fitting seat respectively, described pin II mounting hole center line and valve shaft perpendicular, and parallel with valve plate, position corresponding to pin II on described valve shaft is provided with the mountion plate matched with the mounting plane of pin II, the tapped hole consistent with pin II axial direction is provided with the crossing end of pin II axis at the mounting plane of pin II, pin II is connected with a Dogbolt by tapped hole.
Further, the mounting plane of pin II is arranged within pin II mounting hole with the crossing end of pin II axis, described pin II mounting hole is provided with step at this end, described step is provided with pad, after described Dogbolt and the tapped hole of pin II are connected, the large end of bolt is pressed on by pad on the step of pin II mounting hole, and the other end of described pin II is arranged on outside pin II mounting hole.
Further, the degree of depth radially residing on valve shaft of described mountion plate be the 0.15-0.20 of valve shaft diameter doubly, the diameter of described pin II be the 1.8-2.2 of the mountion plate degree of depth doubly.
Beneficial effect:
1, the present invention by valve shaft milling mountion plate and in cylindrical pins milling mounting plane, and at mounting plane, tapped hole is set with the crossing end of cylindrical pins axis, a Dogbolt is connected by tapped hole, thus valve shaft and valve plate are linked together securely, not only for ease of maintenaince dismounting, and ensure that pin II can not exit from pin II mounting hole, thus ensure that the reliability that valve uses.
2, step is set in one end of pin II mounting hole, and pad is set, after bolt and tapped hole are connected, the large end of bolt is pressed on pad, can make to adjust tighter and tighter between pin II and valve shaft by the effect that tightens of Dogbolt, while ensure that pin II can not exit, also eliminate the gap between valve shaft and valve shaft mounting hole, thus the friction reduced between the axle of hole, and can prevent ducted Korrosionsmedium from entering space, cause the corrosion of hole axle, extend the working life of whole valve further.
Accompanying drawing explanation
Fig. 1 is three eccentricity geometric representation.
Fig. 2 is structural representation of the present invention.
Fig. 3 is D-D view in Fig. 2.
Fig. 4 is pin II and valve shaft mated condition figure.
Fig. 5 is pin feature figure.
Fig. 6 is the right elevation of Fig. 5.
In figure, 1, valve shaft, 101, mountion plate, 2, pin II, 201, mounting plane, 3, pad, 4, Dogbolt, 5, valve plate, the 501, first valve shaft fitting seat, the 502, second valve shaft fitting seat, 6, valve body, 7, pin I, 8, sealing surface, 9, tapped hole.
Embodiment
Below in conjunction with the drawings and specific embodiments, concrete detailed description is further done to the present invention.
A kind of three eccentric butterfly valve, comprise valve body 6, valve plate 5 and valve shaft 1, described valve plate 5 is arranged in valve body 6 by valve shaft 1 rotationally, the sealing surface 8 coordinated with valve body 6 is circumferentially provided with at valve plate 5, the first valve shaft fitting seat 501 and the second valve shaft fitting seat 502 is provided with in the side of valve plate 5, the valve shaft mounting hole passed through for valve shaft 1 is equipped with in two valve shaft fitting seats, two described valve shaft mounting holes are through hole, and the center line of two valve shaft mounting holes coincides, described valve shaft 1 is located in two valve shaft mounting holes.
First valve shaft fitting seat 501 is fixedly connected with pin I 7 vertical while of valve plate 5 with valve shaft 1 by one with between valve shaft 1, second valve shaft fitting seat 502 is fixedly connected with the columniform pin II 2 be arranged in parallel by two between valve shaft 1, described pin II 2 axis and valve shaft 1 perpendicular, and parallel with valve plate 5, described pin II 2 is provided with the mounting plane 201 with pin II axis with the axis at tilt angle, second valve shaft fitting seat 502 is provided with two pin II mounting holes connected with the valve shaft mounting hole of the second valve shaft fitting seat 502 respectively, described pin II mounting hole center line is perpendicular with valve shaft 1 and parallel with valve plate 5, on described valve shaft 1, the position corresponding to pin II 2 is provided with the mountion plate 101 matched with the mounting plane 201 of pin II, the tapped hole 9 consistent with pin II axial direction is provided with the crossing end of pin II axis at the mounting plane 201 of pin II 2, pin II 2 is connected with a Dogbolt 4 by tapped hole 9.
The mounting plane 201 of pin II is arranged within pin II mounting hole with the crossing end of pin II axis, and described pin II mounting hole is provided with step at this end, and described step is provided with pad 3, and this pad can use plain cushion.
After described Dogbolt 4 and the tapped hole 9 of pin II 2 are connected, the large end of bolt is pressed on by pad 3 on the step of pin II mounting hole, and the other end of described pin II 2 is arranged on outside pin II mounting hole.
Because the mounting plane in pin II 2 201 and pin II 2 have tilt angle, thus make large one end, pin II 2 one end little, small end (i.e. the mounting plane 201 of pin II and the crossing end of pin II axis) is provided with inner bolt hole 9, and be connected with Dogbolt 4, thus ensure that valve plate 5 and valve shaft 1 are fixed together by pin II 2 securely, and due to the stop of Dogbolt 4, pin II 2 can not exit from pin II mounting hole.
Owing to being coordinated by mounting plane 201 and mountion plate 101 between pin II 2 with valve shaft 1, thus limit the rotary motion of pin II 2, further ensure the reliability connected between valve plate 5 and valve shaft 1, and the frictional loss avoided because rotary motion brings and injury.
By screwing Dogbolt 4, can pin II 2 be adjusted tighter and tighter, thus make valve shaft mounting hole by valve shaft 1 armful tighter, not only can eliminate the gap between valve shaft 1 and valve shaft mounting hole, reduce the friction between valve shaft mounting hole and valve shaft 1, and can prevent ducted Korrosionsmedium from entering gap, cause the corrosion of hole axle, extend the working life of whole valve further.
Can also ensure that the intensity of valve shaft 1 is unaffected while being connected firmly with valve plate 5 at guarantee valve shaft 1, the degree of depth radially residing on valve shaft 1 of described mountion plate 101 is preferably the 0.15-0.20 of valve shaft 1 diameter doubly, and the diameter of described pin II is preferably the 1.8-2.2 of mountion plate 101 degree of depth doubly.
Claims (3)
1. a three eccentric butterfly valve, comprise valve body (6), valve plate (5) and valve shaft (1), described valve plate (5) is arranged in valve body (6) by valve shaft (1) rotationally, the sealing surface (8) coordinated with valve body (6) is circumferentially provided with at valve plate (5), it is characterized in that: be provided with the first valve shaft fitting seat (501) and the second valve shaft fitting seat (502) in the side of valve plate (5), the valve shaft mounting hole passed through for valve shaft (1) is equipped with in two valve shaft fitting seats, two described valve shaft mounting holes are through hole, and the center line of two valve shaft mounting holes coincides, described valve shaft (1) is located in two valve shaft mounting holes, first valve shaft fitting seat (501) is fixedly connected with pin I (7) vertical the while of valve plate (5) with valve shaft (1) by one with between valve shaft (1), second valve shaft fitting seat (502) is fixedly connected with the columniform pin II (2) be arranged in parallel by two between valve shaft (1), axis and the valve shaft (1) of described pin II (2) are perpendicular, and parallel with valve plate (5), described pin II (2) is provided with the mounting plane (201) with pin II axis with the axis at tilt angle, second valve shaft fitting seat (502) is provided with two pin II mounting holes connected with the valve shaft mounting hole of the second valve shaft fitting seat (502) respectively, described pin II mounting hole center line and valve shaft (1) perpendicular, and parallel with valve plate (5), above the mountion plate (101) matched with the mounting plane of pin II (201) is provided with in position corresponding with pin II (2) at described valve shaft (1), mounting plane (201) in pin II (2) and the crossing end of pin II axis are provided with the tapped hole (9) consistent with pin II axial direction, pin II (2) is connected with a Dogbolt (4) by tapped hole (9).
2. a kind of three eccentric butterfly valve according to claim 1, it is characterized in that: the mounting plane (201) of pin II is arranged within pin II mounting hole with the crossing end of pin II axis, described pin II mounting hole is provided with step at this end, described step is provided with pad (3), after described Dogbolt (4) and the tapped hole (9) of pin II (2) are connected, the large end of bolt is pressed on the step of pin II mounting hole by pad (3), and the other end of described pin II (2) is arranged on outside pin II mounting hole.
3. a kind of three eccentric butterfly valve according to claim 2, it is characterized in that: the degree of depth radially residing on valve shaft (1) of described mountion plate (101) be the 0.15-0.20 of valve shaft diameter doubly, the diameter of described pin II (2) be the 1.8-2.2 of the mountion plate degree of depth doubly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410676532.7A CN104405909A (en) | 2014-11-24 | 2014-11-24 | Three-eccentric butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410676532.7A CN104405909A (en) | 2014-11-24 | 2014-11-24 | Three-eccentric butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104405909A true CN104405909A (en) | 2015-03-11 |
Family
ID=52643560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410676532.7A Pending CN104405909A (en) | 2014-11-24 | 2014-11-24 | Three-eccentric butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104405909A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019285A (en) * | 2016-10-31 | 2018-05-11 | 埃贝斯佩歇排气技术有限责任两合公司 | Exhaust valve |
| CN112460273A (en) * | 2020-11-24 | 2021-03-09 | 浙江尔格科技股份有限公司 | Butterfly valve, valve plate of butterfly valve and connection structure of butterfly valve plate and rotating shaft |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0275247A1 (en) * | 1987-01-16 | 1988-07-20 | Fisher Controls International, Inc. | Taper key joint for connecting a rotary valve shaft to a valve disc |
| CN202195078U (en) * | 2011-08-23 | 2012-04-18 | 成都川力智能流体控制设备有限公司 | Spherical sealing butterfly valve |
| CN202901316U (en) * | 2012-09-14 | 2013-04-24 | 上海埃维玛阀门有限公司 | Anti-high-temperature and anti-high-pressure and low-torsion high-performance disc valve |
| CN202901328U (en) * | 2012-09-14 | 2013-04-24 | 上海埃维玛阀门有限公司 | Key pin connecting structure of valve rod and valve plate in three-eccentric center butterfly valve |
| CN202992205U (en) * | 2012-11-30 | 2013-06-12 | 无锡智能自控工程股份有限公司 | Low load type cutting-off butterfly valve |
| CN203532777U (en) * | 2013-10-11 | 2014-04-09 | 重庆川仪调节阀有限公司 | Three-eccentric hard-sealing butterfly valve |
| CN203730785U (en) * | 2014-03-19 | 2014-07-23 | 安徽铜都流体科技股份有限公司 | Plate sealing dual-eccentric flange flexible sealing butterfly valve |
| CN204300402U (en) * | 2014-11-24 | 2015-04-29 | 河南煜达阀门制造有限公司 | A kind of three eccentric butterfly valve |
-
2014
- 2014-11-24 CN CN201410676532.7A patent/CN104405909A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0275247A1 (en) * | 1987-01-16 | 1988-07-20 | Fisher Controls International, Inc. | Taper key joint for connecting a rotary valve shaft to a valve disc |
| CN202195078U (en) * | 2011-08-23 | 2012-04-18 | 成都川力智能流体控制设备有限公司 | Spherical sealing butterfly valve |
| CN202901316U (en) * | 2012-09-14 | 2013-04-24 | 上海埃维玛阀门有限公司 | Anti-high-temperature and anti-high-pressure and low-torsion high-performance disc valve |
| CN202901328U (en) * | 2012-09-14 | 2013-04-24 | 上海埃维玛阀门有限公司 | Key pin connecting structure of valve rod and valve plate in three-eccentric center butterfly valve |
| CN202992205U (en) * | 2012-11-30 | 2013-06-12 | 无锡智能自控工程股份有限公司 | Low load type cutting-off butterfly valve |
| CN203532777U (en) * | 2013-10-11 | 2014-04-09 | 重庆川仪调节阀有限公司 | Three-eccentric hard-sealing butterfly valve |
| CN203730785U (en) * | 2014-03-19 | 2014-07-23 | 安徽铜都流体科技股份有限公司 | Plate sealing dual-eccentric flange flexible sealing butterfly valve |
| CN204300402U (en) * | 2014-11-24 | 2015-04-29 | 河南煜达阀门制造有限公司 | A kind of three eccentric butterfly valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019285A (en) * | 2016-10-31 | 2018-05-11 | 埃贝斯佩歇排气技术有限责任两合公司 | Exhaust valve |
| CN112460273A (en) * | 2020-11-24 | 2021-03-09 | 浙江尔格科技股份有限公司 | Butterfly valve, valve plate of butterfly valve and connection structure of butterfly valve plate and rotating shaft |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150311 |
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| RJ01 | Rejection of invention patent application after publication |