CN201687964U - Butterfly valve locating structure with external bearings - Google Patents
Butterfly valve locating structure with external bearings Download PDFInfo
- Publication number
- CN201687964U CN201687964U CN2010201777575U CN201020177757U CN201687964U CN 201687964 U CN201687964 U CN 201687964U CN 2010201777575 U CN2010201777575 U CN 2010201777575U CN 201020177757 U CN201020177757 U CN 201020177757U CN 201687964 U CN201687964 U CN 201687964U
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- CN
- China
- Prior art keywords
- valve
- bearing
- support
- valve rod
- butterfly valve
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a butterfly valve locating structure with external bearings, including a valve body, a valve plate, a valve rod and a support; characterized in that the support is of a Theta shape, a middle transverse plate of the support is provided with a conical roller bearing, which supports the valve rod to rotate; the lower end of the valve body is provided with a bearing seat, a bearing is arranged in the bearing seat, and the bearing supports the valve rod; the valve rod is integrated with a valve rod. The butterfly valve locating structure is capable of greatly reducing friction force, the valve is turned on/off easily, operation is flexible and convenient; operation stability of the valve is improved greatly; localization is more accurate, and the requirement to the force moment of an actuating mechanism is low; and the locating structure is more suitable for a high temperature medium and large caliber butterfly valve.
Description
Technical field
The utility model relates to a kind of position structure of butterfly valve, especially the external butterfly valve position structure of bearing.
Background technique
For the bigger butterfly valve of latus rectum, the weight of unbalanced force on the valve plate and valve plate and valve rod supports by axle sleeve in the prior art, the patent No. is the disclosed structure of the utility model patent of ZL03252922.8, its support is " day " font structure, its middle transverse slat radially is being rotatably assorted by bearing and valve rod, be connected in axially locating with the threaded stem section by bearing, nut, constitute the support mechanism of valve rod axial direction positioning device and trim gravity; " day " font support of this kind structure is arranged on the last neck of butterfly valve, and what neck adopted under it is axle sleeve, utilizes the fit form of built-in axle sleeve and axle, supports the bottom valve rod.The built-in axle sleeve structure of this kind, its deficiency be mainly reflected in following some: 1, friction is big, and the frictional force between axle sleeve and the valve rod is bigger, and the switching of valve is dumb, and valve rod weares and teares bigger with axle sleeve; 2, valve rod is stuck easily, because the gap of axle sleeve is little, advances behind the impurity with regard to easy stuck valve rod, influences the proper functioning of butterfly valve; 3, non-refractory can not adapt to the use needs under the hot environment; What adopt in the transverse slat in 4, in " day " font support navigation system is plain thrust bearing, can not effectively support valve rod and valve plate when the butterfly valve level is installed, and valve plate and valve rod support instability by fulcrum of axle sleeve of valve body lower end.
Summary of the invention
The utility model provides a kind of bearing external butterfly valve position structure at the above-mentioned deficiency of prior art butterfly valve.This kind structure can reduce frictional force, flexible operation, reduce vibration.
The technical solution of the utility model: the butterfly valve position structure that a kind of bearing is external comprises valve body, valve plate, valve rod and support; It is characterized in that: described support is a day font support, in the middle transverse slat of support tapered roller bearing is set, and tapered roller bearing supports the rotation of valve rod; In valve body lower end bearing support is set, bearing is set in bearing support, bearings plays valve rod.
Further feature is: described valve rod and valve rod connect into an integral body.
Bearing cap is set on bearing support, bearing cap with the bearing shutoff in inside.
The butterfly valve position structure that the utility model bearing is external has following characteristics:
1, reduces frictional force significantly, make the valve open and close laborsaving, flexible operation, convenience.
2, increase substantially the operation stability of valve.
3, the location is more accurate, and actuator requires moment lower.
4, more be applicable to high temperature media and large-diameter butterfly valve.
Description of drawings
Fig. 1 is the utility model butterfly valve structure sectional view.
Embodiment
In Fig. 1,2, the butterfly valve position structure that the utility model bearing is external, comprise valve body 1, valve plate 2, valve rod 3, in the upper end of valve body 1 support 4 is set, described support 4 is day font supports, the concrete structure of day font support referring to name be called " rotary motion valve mounting bracket ", the patent No. is the disclosed structure of utility model patent of ZL03252922.8, in day font support 4 middle transverse slat tapered roller bearing 7 is set, tapered roller bearing 7 supports the rotation of valve rods 3; In valve body 1 lower end bearing support 5 is set, bearing 6 is set in bearing support 5, bearing 6 supports valve rod 31.Bearing support 5 is externals, is arranged on valve body 1 lower end, is convenient to dismounting, maintenance etc.Valve rod 3 can be an integrated type, and promptly the valve rod 31 of the valve rod 3 of upper end and lower end links into an integrated entity or itself is exactly an integrated type rod member, and valve rod 3 relies on bearings 6, tapered roller bearing 7 rotations with valve rod 31; Valve rod 3 also can be divided into upper and lower two partly, and promptly the valve rod 3 of upper and lower end is independent settings with valve rod 31, and the valve rod 3 of upper end is in tapered roller bearing 7 upper supports, and the valve rod 31 of lower end relies on bearing 6 to support.
Bearing cap 8 is set on bearing support 5, and bearing cap 8 in inside, prevents that dust, impurity etc. from entering in the bearing 6 with bearing 6 shutoff, simultaneously the seal lubrication grease.
Claims (3)
1. the butterfly valve position structure that bearing is external comprises valve body (1), valve plate (2), valve rod (3) and support (4); It is characterized in that: described support (4) is a day font support, and tapered roller bearing (7) is set in the middle transverse slat of support (4), and tapered roller bearing (7) supports the rotation of valve rod (3); In valve body (1) lower end bearing support (5) is set, bearing (6) is set in bearing support (5), bearing (6) supports valve rod (31).
2. the butterfly valve position structure that bearing according to claim 1 is external is characterized in that: described valve rod (3) connects into an integral body with valve rod (31).
3. the butterfly valve position structure that bearing according to claim 1 and 2 is external is characterized in that: bearing cap (8) is set on bearing support (5), bearing cap (8) with bearing (6) shutoff in inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201777575U CN201687964U (en) | 2010-04-30 | 2010-04-30 | Butterfly valve locating structure with external bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201777575U CN201687964U (en) | 2010-04-30 | 2010-04-30 | Butterfly valve locating structure with external bearings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201687964U true CN201687964U (en) | 2010-12-29 |
Family
ID=43376244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201777575U Expired - Fee Related CN201687964U (en) | 2010-04-30 | 2010-04-30 | Butterfly valve locating structure with external bearings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201687964U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498943A (en) * | 2013-09-04 | 2014-01-08 | 北京艺创阀门制造有限公司 | Double-direction pressure rigidity seal butterfly valve of long support structure with rolling friction |
| CN105508724A (en) * | 2015-12-11 | 2016-04-20 | 四川勃朗蜀威科技有限公司 | Rotary motion valve mounting structure |
| CN106015597A (en) * | 2016-05-18 | 2016-10-12 | 中国北方发动机研究所(天津) | Low-driving-torque high-temperature valve bearing structure |
-
2010
- 2010-04-30 CN CN2010201777575U patent/CN201687964U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498943A (en) * | 2013-09-04 | 2014-01-08 | 北京艺创阀门制造有限公司 | Double-direction pressure rigidity seal butterfly valve of long support structure with rolling friction |
| CN105508724A (en) * | 2015-12-11 | 2016-04-20 | 四川勃朗蜀威科技有限公司 | Rotary motion valve mounting structure |
| CN106015597A (en) * | 2016-05-18 | 2016-10-12 | 中国北方发动机研究所(天津) | Low-driving-torque high-temperature valve bearing structure |
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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 |
Granted publication date: 20101229 Termination date: 20150430 |
|
| EXPY | Termination of patent right or utility model |