CN206017770U - Wear-resisting butterfly valve valve rod spindle nose rotational structure - Google Patents
Wear-resisting butterfly valve valve rod spindle nose rotational structure Download PDFInfo
- Publication number
- CN206017770U CN206017770U CN201621012088.XU CN201621012088U CN206017770U CN 206017770 U CN206017770 U CN 206017770U CN 201621012088 U CN201621012088 U CN 201621012088U CN 206017770 U CN206017770 U CN 206017770U
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- CN
- China
- Prior art keywords
- valve
- gland
- spindle nose
- valve rod
- bearing
- 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.)
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Links
- 210000001331 Nose Anatomy 0.000 title claims abstract description 23
- 210000004907 Glands Anatomy 0.000 claims abstract description 30
- 230000000875 corresponding Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 229910004682 ON-OFF Inorganic materials 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000011049 pearl Substances 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
This utility model is related to a kind of wear-resisting butterfly valve valve rod spindle nose rotational structure, including valve body, valve plate, valve shaft, gland and support and valve shaft actuator, vertically through installation valve shaft in valve body, valve shaft in valve body is radially fixedly mounted with valve plate, gland is installed in the sealing of valve body upper end, valve shaft is installed and executes structure in gland upper end, one bearing of coaxial setting-in between valve rod lower surface and spindle nose gland upper surface, ball is installed in bearing, semicircle annular groove is coaxially formed with valve rod lower surface, also semicircle annular groove is formed with the corresponding spindle nose gland upper surface in valve rod lower surface, two semicircle annular grooves are coaxially corresponding, and bearing is coaxially disposed with annular groove, ball is embedded in two halves circular ring slot.Installation bearing is formed between the valve stem end and rotary head gland of the wear-resisting butterfly valve valve rod spindle nose rotational structure that the application is provided, ball is installed in bearing, when valve rod is rotated, valve rod carries out pivoting friction with ball, the hard friction between valve stem end and capping is avoided, makes rotation more smooth quick.
Description
Technical field
This utility model belongs to valve field, especially a kind of wear-resisting butterfly valve valve rod spindle nose rotational structure.
Background technology
Butterfly valve is called flap valve, is a kind of regulating valve of simple structure, can be used for the on-off control of low pressure pipeline medium
Butterfly valve refers to closure member (flap or butterfly plate) for disk, reaches a kind of valve of open and close around valve shaft rotation, and valve can
For controlling all kinds such as empty gas and water, steam, various Korrosionsmediums, mud, oil product, liquid metal and radiating medium
The flowing of fluid.Cut-out and throttling action is acted primarily as on pipeline.Butterfly valve opening and closing element is a discoidal butterfly plate, in valve body
Rotate around the axis of its own, so as to reach the purpose for opening and closing or adjusting.
The end of the valve rod of existing butterfly valve is all the rotary head gland of directly contact valve body lower end, when valve rod is rotated, valve
Boom end is rotated for hard with capping, and rotating effect is very bad.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of low cost, good seal performance, rotation
Efficiently wear-resisting butterfly valve valve rod spindle nose rotational structure.
This utility model realizes that the technical scheme of purpose is as follows：
A kind of wear-resisting butterfly valve valve rod spindle nose rotational structure, including valve body, valve plate, valve shaft, gland and support and valve shaft
Actuator, vertically through valve shaft is installed in valve body, the valve shaft in valve body is radially fixedly mounted with valve plate, and pressure is installed in the sealing of valve body upper end
Lid, gland upper end are installed valve shaft and execute structure, and valve shaft top is through gland and support, the driving in end and valve shaft actuator
Gear is engaged, by valve shaft actuator come the rotation of drive valve plate, lower end axis hole of the valve rod lower end through valve body, valve body lower end
Axis hole end sealed by spindle nose gland, between valve rod lower surface and spindle nose gland upper surface coaxial setting-in one bearing, axle
Interior installation ball is held, semicircle annular groove is coaxially formed with valve rod lower surface, in the corresponding spindle nose gland upper end in valve rod lower surface
Face is also formed with semicircle annular groove, and two semicircle annular grooves are coaxially corresponding, and bearing is coaxially disposed with annular groove, in two halves circular ring slot
Interior setting-in ball.
The valve shaft actuator is pneumatic actuator or hand actuator.
The beneficial effects of the utility model are：
Peace is formed between the valve stem end and rotary head gland of the wear-resisting butterfly valve valve rod spindle nose rotational structure that the application is provided
Dress bearing, installs ball in bearing, when valve rod is rotated, valve rod and ball carry out pivoting friction, it is to avoid valve stem end and envelope
Hard friction between lid, makes rotation more smooth quick.
Description of the drawings
Structural representations of the Fig. 1 for the application；
Close-up schematic views of the Fig. 2 for the A of Fig. 1.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings and by specific embodiment, and following examples are simply retouched
The property stated, be not determinate, it is impossible to limit protection domain of the present utility model successively.
A kind of wear-resisting butterfly valve valve rod spindle nose rotational structure, including valve body 6, valve plate 4, valve shaft 5,8 and of gland 7 and support
Valve shaft actuator, vertically through valve shaft is installed in valve body, the valve shaft in valve body is radially fixedly mounted with valve plate, and the sealing of valve body upper end is installed
Gland, gland upper end are installed valve shaft and execute structure, and valve shaft top is through gland and support, the drive in end and valve shaft actuator
Moving gear is engaged, by valve shaft actuator come the rotation of drive valve plate.
Lower end axis hole of the valve rod lower end through valve body, the axis hole end of valve body lower end is sealed by spindle nose gland 1.
The innovation of the application is：
Ball 2 is installed in one bearing 9 of coaxial setting-in, bearing between valve rod lower surface and spindle nose gland upper surface, in valve
Semicircle annular groove 3 is coaxially formed with bar lower surface, is also formed with semicircular rings in the corresponding spindle nose gland upper surface in valve rod lower surface
Groove, two semicircle annular grooves are coaxially corresponding, and bearing is coaxially disposed with annular groove, is embedded in ball 2, is used in two halves circular ring slot
When valve rod is rotated, reduce the friction of valve rod lower surface and gland upper surface.
Wherein valve shaft actuator is opened the mechanism of valve plate, has pneumatic holding in prior art for driving valve shaft to rotate coaxially
Row mechanism and manual actuator, i.e. pneumatic actuator and hand actuator etc. are multiple, and the application does not do particular restriction.
Valve rod rotate more 0-90 °, so at least three pearls can just provide 90 ° deliver.
Peace is formed between the valve stem end and rotary head gland of the wear-resisting butterfly valve valve rod spindle nose rotational structure that the application is provided
Dress bearing, installs ball in bearing, when valve rod is rotated, valve rod and ball carry out pivoting friction, it is to avoid valve stem end and envelope
Hard friction between lid, makes rotation more smooth fast.
Claims (2)
1. a kind of wear-resisting butterfly valve valve rod spindle nose rotational structure, holds including valve body, valve plate, valve shaft, gland and support and valve shaft
Row mechanism, vertically through valve shaft is installed in valve body, the valve shaft in valve body is radially fixedly mounted with valve plate, and gland is installed in the sealing of valve body upper end,
Gland upper end is installed valve shaft and executes structure, and valve shaft top is through gland and support, the sliding tooth in end and valve shaft actuator
Wheel engagement, by valve shaft actuator come the rotation of drive valve plate, valve rod lower end passes through the lower end axis hole of valve body, valve body lower end
Axis hole end is sealed by spindle nose gland, it is characterised in that：Coaxially it is embedded between valve rod lower surface and spindle nose gland upper surface
Ball is installed in one bearing, bearing, semicircle annular groove is coaxially formed with valve rod lower surface, in the corresponding spindle nose in valve rod lower surface
Gland upper surface is also formed with semicircle annular groove, and two semicircle annular grooves are coaxially corresponding, and bearing is coaxially disposed with annular groove, in two halves
Setting-in ball in circular ring slot.
2. butterfly valve valve rod spindle nose rotational structure wear-resisting according to claim 1, it is characterised in that：The valve shaft actuator
For pneumatic actuator or hand actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621012088.XU CN206017770U (en) | 2016-08-31 | 2016-08-31 | Wear-resisting butterfly valve valve rod spindle nose rotational structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621012088.XU CN206017770U (en) | 2016-08-31 | 2016-08-31 | Wear-resisting butterfly valve valve rod spindle nose rotational structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206017770U true CN206017770U (en) | 2017-03-15 |
Family
ID=58256745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621012088.XU Active CN206017770U (en) | 2016-08-31 | 2016-08-31 | Wear-resisting butterfly valve valve rod spindle nose rotational structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206017770U (en) |
-
2016
- 2016-08-31 CN CN201621012088.XU patent/CN206017770U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |