CN202790825U - Pneumatic actuator - Google Patents
Pneumatic actuator Download PDFInfo
- Publication number
- CN202790825U CN202790825U CN 201220355176 CN201220355176U CN202790825U CN 202790825 U CN202790825 U CN 202790825U CN 201220355176 CN201220355176 CN 201220355176 CN 201220355176 U CN201220355176 U CN 201220355176U CN 202790825 U CN202790825 U CN 202790825U
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- CN
- China
- Prior art keywords
- piston
- cylinder
- rotary shaft
- cylinder body
- rotating shaft
- 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 pneumatic actuator which comprises a cylinder, a left end cover, a right end cover, a left piston, a right piston and a rotary shaft. The left piston, the right piston and the rotary shaft are disposed in the cylinder. The rotary shaft is disposed between the left piston and the right piston and in transmission fit with racks on the pistons. A cover plate of the left end cover and a cover plate of the right end cover protrude outwards. Each of the middle of the outward protrusion of the cover plate of the left end cover and the middle of the outward protrusion of the cover plate of the right end cover are provided with an inward recess, and a bolt extending into the cylinder is mounted at the recess. When the pistons move towards two sides, the pistons are butted against the bolts of the end covers on two sides. The rotary shaft extends out of the cylinder. The extended rotary shaft is provided with an annular groove. A stainless steel gasket is disposed on the contact part of the rotary shaft with the cylinder. The pneumatic actuator is reasonable and simple in structure, space in the cylinder is increased by changing the end covers, momentum is the chamber is increased, and accordingly torque is increased, and the pneumatic actuator can be effectively matched with valves without changing the whole cylinder, and is simpler to manufacture.
Description
Technical field
The utility model relates to a kind of pneumatic execution field, mainly is a kind of pneumatic actuator.
Background technique
Pneumatic actuator is used for the open and close of Open valve, for closing of accurate control valve opened and located, need the accurately torque of control final controlling element, and pneumatic actuator to be space by bleed pressure and cylinder determined, thereby need space in the intensifying cylinder body to increase indoor imposing manner.
The model utility content
For above problems of the prior art, the utility model provides a kind of novel structure, pneumatic actuator that cylinder space is large.
The utility model is achieved through the following technical solutions:
A kind of pneumatic actuator, include cylinder body, left and right end cap, and be arranged on left and right piston and rotating shaft in the cylinder body, rotating shaft is arranged on the centre of left and right piston and cooperates with rack-driving on the piston, the cover plate of described left and right end cap is protruding laterally respectively, the cover plate of described left and right end cap is the inside indent of part of the centre of projection laterally, described interior recess is equipped with bolt, described bolt extend in the cylinder body, and described piston just in time is against on the bolt of both sides end cap during to two side shiftings; Described rotating shaft is stretched out outside the cylinder body, and has an annular groove in the rotating shaft of stretching out, and the position that described rotating shaft contacts with cylinder body is provided with stainless steel gasket.
Having annular groove at the rotating shaft extension in the utility model is to need the input end of the annex of transmission in order directly to engage some in groove, has removed like this support device of installing from.
The beneficial effects of the utility model are: rational in infrastructure simple, increased the space in the cylinder body by changing end cap, and increases indoor imposing manner, thereby add high pulling torque, make the fiting effect of itself and valve good, and need not to change whole cylinder body, easy to make easy.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1 is cylinder body; 2 is end cap; 3 is piston; 4 are rotating shaft; 5 is projection; 6 is indent; 7 is bolt; 8 is groove; 9 is pad.
Embodiment
The utility model provides a kind of pneumatic actuator, include cylinder body 1, left and right end cap 2, and be arranged on left and right piston 3 and rotating shaft 4 in the cylinder body 1, rotating shaft 4 is arranged on the centre of left and right piston 3 and cooperates with rack-driving on the piston 3, the cover plate difference of described left and right end cap 2 is projection 5 laterally, the cover plate of described left and right end cap is the inside indent 6 of part of the centre of projection 5 laterally, described indent 6 places are equipped with bolt 7, described bolt 7 extend in the cylinder body 1, and described piston 3 just in time is against on the bolt of both sides end cap during to two side shiftings; Described rotating shaft 4 is stretched out outside the cylinder body 1, and has an annular groove 8 in the rotating shaft 4 of stretching out, and the position that described rotating shaft 4 contacts with cylinder body 1 is provided with stainless steel gasket 9.
Having annular groove at the rotating shaft extension in the utility model is to need the input end of the annex of transmission in order directly to engage some in groove, has removed like this support device of installing from.
The utility model is rational in infrastructure simple, has increased the space in the cylinder body by changing end cap, increases indoor imposing manner, thereby adds high pulling torque, makes the fiting effect of itself and valve good, and need not to change whole cylinder body, and is easy to make easy.
Claims (1)
1. pneumatic actuator, include cylinder body, left and right end cap, and be arranged on left and right piston and rotating shaft in the cylinder body, rotating shaft is arranged on the centre of left and right piston and cooperates with rack-driving on the piston, the cover plate that it is characterized in that described left and right end cap is protruding laterally respectively, the cover plate of described left and right end cap is the inside indent of part of the centre of projection laterally, described interior recess is equipped with bolt, described bolt extend in the cylinder body, and described piston just in time is against on the bolt of both sides end cap during to two side shiftings; Described rotating shaft is stretched out outside the cylinder body, and has an annular groove in the rotating shaft of stretching out, and the position that described rotating shaft contacts with cylinder body is provided with stainless steel gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220355176 CN202790825U (en) | 2012-07-18 | 2012-07-18 | Pneumatic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220355176 CN202790825U (en) | 2012-07-18 | 2012-07-18 | Pneumatic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790825U true CN202790825U (en) | 2013-03-13 |
Family
ID=47818088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220355176 Expired - Fee Related CN202790825U (en) | 2012-07-18 | 2012-07-18 | Pneumatic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202790825U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439182A (en) * | 2016-12-06 | 2017-02-22 | 无锡优耐特净化装备有限公司 | Pneumatic actuator |
| CN108026944A (en) * | 2015-09-22 | 2018-05-11 | 康斯博格汽车股份公司 | Double acting cylinder |
| CN108374907A (en) * | 2018-01-19 | 2018-08-07 | 东北石油大学 | A kind of driving head of control high-pressure high-flow ball valve |
-
2012
- 2012-07-18 CN CN 201220355176 patent/CN202790825U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108026944A (en) * | 2015-09-22 | 2018-05-11 | 康斯博格汽车股份公司 | Double acting cylinder |
| CN106439182A (en) * | 2016-12-06 | 2017-02-22 | 无锡优耐特净化装备有限公司 | Pneumatic actuator |
| CN108374907A (en) * | 2018-01-19 | 2018-08-07 | 东北石油大学 | A kind of driving head of control high-pressure high-flow ball valve |
| CN108374907B (en) * | 2018-01-19 | 2019-07-02 | 东北石油大学 | A kind of driving head controlling high-pressure high-flow ball valve |
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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: 20130313 Termination date: 20140718 |
|
| EXPY | Termination of patent right or utility model |