CN104676019A - Axial limiting structure of butterfly valve - Google Patents
Axial limiting structure of butterfly valve Download PDFInfo
- Publication number
- CN104676019A CN104676019A CN201510095771.8A CN201510095771A CN104676019A CN 104676019 A CN104676019 A CN 104676019A CN 201510095771 A CN201510095771 A CN 201510095771A CN 104676019 A CN104676019 A CN 104676019A
- Authority
- CN
- China
- Prior art keywords
- bearing
- steel
- steel ring
- valve rod
- ring
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- 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
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses an axial limiting structure of a butterfly valve. The axial limiting structure comprises a valve body, a valve rod, a butterfly plate and an end cover, which is characterized in that a bearing, which sleeves the valve rod, is arranged under the butterfly plate; the valve rod is axially supported on the end cover by a steel ball arranged at the bottom of the valve rod; a steel ring is arranged under the bearing; a plane bearing is formed by the steel ring and ball bearings and is abutted against the bearing; a half ring is arranged at the periphery of the steel ball and is fixed on the valve body by a screw; the internal bore diameter of the half ring is smaller than the diameter of the outer circle of the bearing; a plane cam groove is formed in the periphery of the steel ring and is matched with a guide pin mounted on the inner wall of the half ring; an adjusting hole is formed in the steel ring; when the axial limiting structure works for a long time, and friction is formed between the ball bearings and the end face of the bearing, the steel ring can be rotated by the adjusting hole and the steel ring moves upwards along the guide pin. The axial limiting structure has a reasonable structure, is convenient to overhaul and has good working performances.
Description
Technical field
The present invention relates to a kind of axial limit structure of butterfly valve.
Background technique
Dish plate and the valve rod of tradition butterfly valve, by pin transmitting torque, become an assemblying body after connection, axial limiting be lean on end cap part split annulus, antifriction spacer realizes; Shortcoming is: it is poor that pin connects detachability, and split annulus and to be easily engaged with valve body and stuck, when overhauling rear end cover part, dish plate moves down with valve rod, destroys the realization of sealing function.
Along with the lifting of butterfly valve technical property requirements, become development trend without pin valve, namely adopt the form such as key, spline, flat tenon, square tenon to be connected between upper valve rod with dish version, lower valve rod does not make axial limiting part, only play the effect that circumference is spacing, the axial limiting of dish plate is directly responsible for by bearing.
Summary of the invention
The object of the present invention is to provide a kind of rational in infrastructure, maintenance is convenient, the axial limit structure of the butterfly valve of favorable working performance.
Technical solution of the present invention is:
An axial limit structure for butterfly valve, comprises valve body, valve rod, dish plate, end cap, it is characterized in that: arrange the bearing be sleeved on valve rod below dish plate, valve rod is axially supported on end cap by the steel ball being arranged on stem bottom, arranges steel ring below bearing; Steel ring and steel ball form plane bearing, abut with bearing; Steel ball periphery arranges and splits annulus, and split annulus and be fixed by screws on valve body, the diameter of bore splitting annulus is less than bearing top circle diameter; Steel ring periphery is processed with face cam groove, and is arranged on the guide finger splitting circle ring inner wall and matches, and steel ring is provided with adjustment hole, and when working long hours, when steel ball and bearing face have a friction, by adjustment hole rotating steel rim, steel ring moves along on guide finger.
The present invention is rational in infrastructure, and maintenance is convenient, favorable working performance.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the structural representation of steel ring.
Fig. 3 is the structural representation of face cam groove.
Embodiment
An axial limit structure for butterfly valve, comprises valve body 1, valve rod 2, dish plate 3, end cap 4, and arrange the bearing 5 be sleeved on valve rod below dish plate, valve rod is axially supported on end cap by the steel ball 6 being arranged on stem bottom, and friction factor is little; Steel ring 7 is set below bearing; Steel ring and steel ball 8 form plane bearing, and abut with bearing 5, friction factor is little; Steel ball periphery arranges and splits annulus 9, and split annulus and be fixed by screws on valve body, the diameter of bore splitting annulus is less than bearing top circle diameter, and behind maintenance end cap position, dish plate does not move down; Steel ring periphery is processed with face cam groove 10, with be arranged on the guide finger 11 splitting circle ring inner wall and match, steel ring is provided with adjustment hole 12, when working long hours, when steel ball and bearing face have a friction, by adjustment hole rotating steel rim, steel ring moves along on guide finger, realize stepless changing, convenient, accurate.
Claims (1)
1. the axial limit structure of a butterfly valve, comprise valve body, valve rod, dish plate, end cap, it is characterized in that: arrange the bearing be sleeved on valve rod below dish plate, valve rod is axially supported on end cap by the steel ball being arranged on stem bottom, arranges steel ring below bearing; Steel ring and steel ball form plane bearing, abut with bearing; Steel ball periphery arranges and splits annulus, and split annulus and be fixed by screws on valve body, the diameter of bore splitting annulus is less than bearing top circle diameter; Steel ring periphery is processed with face cam groove, and is arranged on the guide finger splitting circle ring inner wall and matches, and steel ring is provided with adjustment hole, and when working long hours, when steel ball and bearing face have a friction, by adjustment hole rotating steel rim, steel ring moves along on guide finger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510095771.8A CN104676019B (en) | 2015-03-04 | 2015-03-04 | The axial limit structure of butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510095771.8A CN104676019B (en) | 2015-03-04 | 2015-03-04 | The axial limit structure of butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104676019A true CN104676019A (en) | 2015-06-03 |
| CN104676019B CN104676019B (en) | 2017-09-22 |
Family
ID=53311446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510095771.8A Active CN104676019B (en) | 2015-03-04 | 2015-03-04 | The axial limit structure of butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104676019B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826964A (en) * | 2019-03-14 | 2019-05-31 | 江苏神通阀门股份有限公司 | A kind of axial limit structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1300161A (en) * | 1969-03-07 | 1972-12-20 | Jean Gachot | Improved butterfly valve |
| JPH0828715A (en) * | 1994-07-20 | 1996-02-02 | Tomoe Gijutsu Kenkyusho:Kk | Dynamic torque measurement system for butterfly valve and butterfly valve element therefor |
| CN201025308Y (en) * | 2007-03-07 | 2008-02-20 | 李红伟 | Valve plate positioning butterfly valve |
| CN201599420U (en) * | 2010-01-08 | 2010-10-06 | 科福龙阀门集团有限公司 | Rolling friction butterfly valve |
| CN202165623U (en) * | 2011-07-23 | 2012-03-14 | 宣达实业集团有限公司 | Butterfly valve |
| CN103322211A (en) * | 2013-06-24 | 2013-09-25 | 浙江中德自控阀门有限公司 | Metal sealed butterfly valve without pin connection |
| CN204477329U (en) * | 2015-03-04 | 2015-07-15 | 江苏神通阀门股份有限公司 | The axial limit structure of butterfly valve |
-
2015
- 2015-03-04 CN CN201510095771.8A patent/CN104676019B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1300161A (en) * | 1969-03-07 | 1972-12-20 | Jean Gachot | Improved butterfly valve |
| JPH0828715A (en) * | 1994-07-20 | 1996-02-02 | Tomoe Gijutsu Kenkyusho:Kk | Dynamic torque measurement system for butterfly valve and butterfly valve element therefor |
| CN201025308Y (en) * | 2007-03-07 | 2008-02-20 | 李红伟 | Valve plate positioning butterfly valve |
| CN201599420U (en) * | 2010-01-08 | 2010-10-06 | 科福龙阀门集团有限公司 | Rolling friction butterfly valve |
| CN202165623U (en) * | 2011-07-23 | 2012-03-14 | 宣达实业集团有限公司 | Butterfly valve |
| CN103322211A (en) * | 2013-06-24 | 2013-09-25 | 浙江中德自控阀门有限公司 | Metal sealed butterfly valve without pin connection |
| CN204477329U (en) * | 2015-03-04 | 2015-07-15 | 江苏神通阀门股份有限公司 | The axial limit structure of butterfly valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826964A (en) * | 2019-03-14 | 2019-05-31 | 江苏神通阀门股份有限公司 | A kind of axial limit structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104676019B (en) | 2017-09-22 |
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