CN202901490U - Shift fork type pneumatic actuator - Google Patents
Shift fork type pneumatic actuator Download PDFInfo
- Publication number
- CN202901490U CN202901490U CN 201220574476 CN201220574476U CN202901490U CN 202901490 U CN202901490 U CN 202901490U CN 201220574476 CN201220574476 CN 201220574476 CN 201220574476 U CN201220574476 U CN 201220574476U CN 202901490 U CN202901490 U CN 202901490U
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- CN
- China
- Prior art keywords
- shift fork
- piston
- pneumatic actuator
- type pneumatic
- fork type
- 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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Abstract
The utility model provides a shift fork type pneumatic actuator comprising an air cylinder component and a shift fork component. The air cylinder component comprises an air cylinder, an air cylinder cover, a piston and a piston rod. The shift fork component comprises a shift fork, a spindle and a box, a slide is arranged at the tail end of the shift fork, a through hole is reserved at the center of the shift fork, a pin is arranged on the piston rod and slidingly matched with the slide, the spindle is mounted in the through hole of the shift fork, a piston connecting sleeve is fixedly mounted at the tail end of the piston rod, a screw rod is fixedly mounted at the tail end of the piston connecting sleeve, a handle is fixedly mounted at the tail end of the screw rod, and a nut is sleeved on the screw rod. By the aid of the shift fork type pneumatic actuator, the piston can be driven to move by rotating the handle, so that linear movement of the piston rod is converted into rotating movement of the shift fork, and on and off of a valve is controlled. The shift fork type pneumatic actuator is simple in structure and convenient to manually operate and adjust.
Description
Technical field
The utility model belongs to valve field, is specifically related to a kind of shift fork type pneumatic actuator for control valve.
Background technique
The driving mechanism of pneumatic actuator has two kinds of pinion and-rack and fork types, and shift fork type pneumatic actuator is to drive shift fork by the piston rod moving linearly to rotate, and then drives main shaft or valve rod rotates.Shift fork type pneumatic actuator of the prior art mainly comprises cylinder part and shift fork transmission part, cylinder part comprises cylinder, cylinder head, piston and piston rod, the shift fork transmission part comprises pull-fork assembly, main shaft and casing, main shaft and pull-fork assembly are arranged in the casing, main shaft and casing are rotationally connected, and pull-fork assembly and piston rod are in transmission connection.But existing shift fork type pneumatic actuator is relatively required great effort when manual tune, operation inconvenience.
The model utility content
The utility model provides a kind of shift fork type pneumatic actuator that can carry out easily manual tune for above-mentioned the deficiencies in the prior art.
The utility model is achieved by the following technical solution:
A kind of shift fork type pneumatic actuator, comprise cylinder assembly and pull-fork assembly, described cylinder assembly comprises cylinder, cylinder head, piston and piston rod, and pull-fork assembly comprises shift fork, main shaft and casing, the end of described shift fork is provided with a chute, and the central position of described shift fork is provided with a through hole; Be provided with a bearing pin on the described piston rod, described bearing pin and chute are slidingly matched; Described main shaft is installed in the through hole at shift fork center; It is characterized in that, the end of described piston rod is installed with a piston female connector, and the end of piston female connector is installed with a leading screw, and the end of described leading screw is installed with one handle; Be set with a nut on the leading screw.
Further setting of the present utility model is, the periphery of described piston female connector and leading screw is provided with an outer sleeve, and an end of outer sleeve is fixedly connected with casing, and the other end is provided with an end cap.
Further setting of the present utility model is, described nut is fixedly mounted on the described end cap.
Further setting of the present utility model is, is provided with damping device on described cylinder head and the casing.
Further setting of the present utility model is, the link position of described piston female connector and leading screw is provided with a thrust ball bearing.
Shift fork type pneumatic actuator described in the utility model fixedly mounts a piston female connector by the end at piston rod, fixedly mounts a leading screw at the end of piston female connector, at the end fixed installation one handle of leading screw; And at leading screw suit one nut, realized the piston rod motion by handle with sleeve, and then realized that the straight line motion with piston rod changes the rotating operation of shift fork into, and then the switching of control valve.This shift fork type pneumatic actuator simple in structure, manually-operable is easy to adjust.
Description of drawings
Fig. 1 is the structural drawing of shift fork type pneumatic actuator described in the utility model;
Among the figure: cylinder 1, casing 2, shift fork 3, piston 4, piston rod 5, main shaft 6, cylinder head 7, piston female connector 8, leading screw 9, nut 10, thrust ball bearing 11, outer sleeve 12, handle 13, end cap 14.
Embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the utility model provides a kind of shift fork type pneumatic actuator, comprise cylinder assembly and pull-fork assembly, described cylinder assembly comprises cylinder 1, cylinder head 7, piston 4 and piston rod 5, pull-fork assembly comprises shift fork 3, main shaft 6 and casing 2, the end of described shift fork 3 is provided with a chute, and the central position of described shift fork is provided with a through hole; Be provided with a bearing pin on the described piston rod 5, described bearing pin and chute are slidingly matched; Described main shaft 6 is installed in the through hole at shift fork 3 centers.The end of piston rod 5 is installed with a piston female connector 8, and the end of piston female connector 8 is installed with a leading screw 9, and the end of described leading screw 9 is installed with one handle 13; Be set with a nut 10 on the leading screw 9.The periphery of described piston female connector 8 and leading screw 9 is provided with an outer sleeve 12, and an end of outer sleeve 12 is fixedly connected with casing 2, and the other end is provided with an end cap 14.Described nut 10 is fixedly mounted on the described end cap 14, and then can piston rod 5 motions by handle with sleeve 13.In order to make the shift fork type pneumatic actuator operation more steady, also be provided with damping device on described cylinder head 7 and the casing 2.Described piston female connector 8 also is provided with a thrust ball bearing 11 with the link position of leading screw 9.
The above is preferred embodiment of the present utility model, and all equivalent variations of doing according to the utility model claim all should belong to protection domain of the present utility model.
Claims (5)
1. shift fork type pneumatic actuator, comprise cylinder assembly and pull-fork assembly, described cylinder assembly comprises cylinder, cylinder head, piston and piston rod, and pull-fork assembly comprises shift fork, main shaft and casing, the end of described shift fork is provided with a chute, and the central position of described shift fork is provided with a through hole; Be provided with a bearing pin on the described piston rod, described bearing pin and chute are slidingly matched; Described main shaft is installed in the through hole at shift fork center; It is characterized in that, the end of described piston rod is installed with a piston female connector, and the end of piston female connector is installed with a leading screw, and the end of described leading screw is installed with one handle; Be set with a nut on the leading screw.
2. shift fork type pneumatic actuator according to claim 1 is characterized in that, the periphery of described piston female connector and leading screw is provided with an outer sleeve, and an end of outer sleeve is fixedly connected with casing, and the other end is provided with an end cap.
3. shift fork type pneumatic actuator according to claim 2 is characterized in that, described nut is fixedly mounted on the described end cap.
4. shift fork type pneumatic actuator according to claim 1 is characterized in that, is provided with damping device on described cylinder head and the casing.
5. shift fork type pneumatic actuator according to claim 1 is characterized in that, the link position of described piston female connector and leading screw is provided with a thrust ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220574476 CN202901490U (en) | 2012-11-02 | 2012-11-02 | Shift fork type pneumatic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220574476 CN202901490U (en) | 2012-11-02 | 2012-11-02 | Shift fork type pneumatic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202901490U true CN202901490U (en) | 2013-04-24 |
Family
ID=48122161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220574476 Expired - Fee Related CN202901490U (en) | 2012-11-02 | 2012-11-02 | Shift fork type pneumatic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202901490U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960568A (en) * | 2022-04-22 | 2022-08-30 | 中国电建集团华东勘测设计研究院有限公司 | Emergency accident drainage system for leakage water collecting well of large hydropower station |
| CN115977930A (en) * | 2023-02-28 | 2023-04-18 | 采埃孚商用车系统(青岛)有限公司 | Unloading device and air compressor |
| CN116181951A (en) * | 2022-11-14 | 2023-05-30 | 无锡福斯拓科科技有限公司 | Single-acting screw rod manual mechanism with travel indication |
-
2012
- 2012-11-02 CN CN 201220574476 patent/CN202901490U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960568A (en) * | 2022-04-22 | 2022-08-30 | 中国电建集团华东勘测设计研究院有限公司 | Emergency accident drainage system for leakage water collecting well of large hydropower station |
| CN114960568B (en) * | 2022-04-22 | 2023-12-05 | 中国电建集团华东勘测设计研究院有限公司 | Emergency drainage system for seepage water collecting well of large hydropower station |
| CN116181951A (en) * | 2022-11-14 | 2023-05-30 | 无锡福斯拓科科技有限公司 | Single-acting screw rod manual mechanism with travel indication |
| CN115977930A (en) * | 2023-02-28 | 2023-04-18 | 采埃孚商用车系统(青岛)有限公司 | Unloading device and air compressor |
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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: 20130424 Termination date: 20151102 |
|
| EXPY | Termination of patent right or utility model |