CN204477329U - The axial limit structure of butterfly valve - Google Patents
The axial limit structure of butterfly valve Download PDFInfo
- Publication number
- CN204477329U CN204477329U CN201520125504.6U CN201520125504U CN204477329U CN 204477329 U CN204477329 U CN 204477329U CN 201520125504 U CN201520125504 U CN 201520125504U CN 204477329 U CN204477329 U CN 204477329U
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- CN
- China
- Prior art keywords
- bearing
- annulus
- valve rod
- steel ball
- steel
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of axial limit structure of 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.The utility model is rational in infrastructure, and maintenance is convenient, favorable working performance.
Description
Technical field
The utility model 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 purpose of this utility model is to provide a kind of rational in infrastructure, and maintenance is convenient, the axial limit structure of the butterfly valve of favorable working performance.
Technical solution of the present utility model 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.
The utility model is rational in infrastructure, and maintenance is convenient, favorable working performance.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model embodiment.
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520125504.6U CN204477329U (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 |
|---|---|---|---|
| CN201520125504.6U CN204477329U (en) | 2015-03-04 | 2015-03-04 | The axial limit structure of butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204477329U true CN204477329U (en) | 2015-07-15 |
Family
ID=53633122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520125504.6U Expired - Fee Related CN204477329U (en) | 2015-03-04 | 2015-03-04 | The axial limit structure of butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204477329U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676019A (en) * | 2015-03-04 | 2015-06-03 | 江苏神通阀门股份有限公司 | Axial limiting structure of butterfly valve |
| CN109931419A (en) * | 2019-04-09 | 2019-06-25 | 温州市瓯斯特阀门有限公司 | A kind of wear-resisting separable type fixing ball valve |
| CN112762101A (en) * | 2020-12-29 | 2021-05-07 | 中国航发哈尔滨轴承有限公司 | Axial limiter |
-
2015
- 2015-03-04 CN CN201520125504.6U patent/CN204477329U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676019A (en) * | 2015-03-04 | 2015-06-03 | 江苏神通阀门股份有限公司 | Axial limiting structure of butterfly valve |
| CN109931419A (en) * | 2019-04-09 | 2019-06-25 | 温州市瓯斯特阀门有限公司 | A kind of wear-resisting separable type fixing ball valve |
| CN112762101A (en) * | 2020-12-29 | 2021-05-07 | 中国航发哈尔滨轴承有限公司 | Axial limiter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20180304 |