CN201836142U - Pneumatic actuator - Google Patents
Pneumatic actuator Download PDFInfo
- Publication number
- CN201836142U CN201836142U CN201020283842XU CN201020283842U CN201836142U CN 201836142 U CN201836142 U CN 201836142U CN 201020283842X U CN201020283842X U CN 201020283842XU CN 201020283842 U CN201020283842 U CN 201020283842U CN 201836142 U CN201836142 U CN 201836142U
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- CN
- China
- Prior art keywords
- pneumatic actuator
- piston
- cylinder body
- main shaft
- positioning strip
- 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 provides a pneumatic actuator, which belongs to the technical field of machinery and comprises a cylinder, a piston and a positioning strip. The piston moves inside the cylinder, a spindle is disposed in the cylinder, the piston drives the spindle to rotate, and the positioning strip is used for limiting motion trajectory of the piston and fixedly disposed inside the cylinder. The pneumatic actuator can limit the piston by the aid of the positioning strip so as to prevent the piston from being collided with the wall of the cylinder during movement, prevents abrasion on the wall of the cylinder and reduction of output torque, and accordingly prolongs the service life.
Description
Technical field
The utility model relates to field of mechanical technique, particularly a kind of pneumatic actuator.
Background technique
Pneumatic actuator is to be the final controlling element of power with pressurized air, is generally combined by pneumatic actuator and controlling mechanism, constitutes air-operated controller.Traditional pneumatic actuator all is provided with main shaft, cylinder body and piston, and piston moves with drive main spindle in cylinder body.Be provided with a wear rib in the prior art or do not have wear rib outside main shaft, shakiness when causing piston motion causes quickening the wearing and tearing of cylinder wall, has reduced working life and has caused output torque to reduce.
The model utility content
The piston motion shakiness causes easily causing wearing and tearing and the little problem of output torque in the prior art in order to solve, and the utility model proposes a kind of pneumatic actuator.Described technological scheme is as follows:
The utility model embodiment has proposed a kind of pneumatic actuator, comprises that cylinder body reaches and the piston that moves in described cylinder body, and described main shaft is arranged in the cylinder body, and the described main shaft of described piston actuated rotates; It is characterized in that also comprise the positioning strip that is used to limit described piston trajectory, described positioning strip is fixedly set in the described cylinder body.
Preferred as technique scheme, described positioning strip comprise having framework and be arranged at opening in the described framework, and the shape of described opening and described piston is suitable.
Preferred as technique scheme, described positioning strip has predetermined thickness along described piston movement direction.
Preferred as technique scheme, described main shaft top sides is along having rounding off.
Preferred as technique scheme also comprises shell, described shell be fixed on described cylinder body on, described shell has projection, described lug is along being arc, the sidewall of described projection forms an oblique angle.
The beneficial effect of the technological scheme that the utility model embodiment provides is: the utility model proposes a kind of pneumatic actuator, can carry out spacing to piston by positioning strip, to prevent that piston from bumping in when motion and cylinder wall, prevent to cause cylinder wall wearing and tearing and output torque to reduce, to improve the working life of pneumatic actuator.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment's technological scheme, to do one to the accompanying drawing that uses among the embodiment below introduces simply, apparently, below listed accompanying drawing only be embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the sectional structure schematic representation of pneumatic actuator of the present utility model;
Fig. 2 is the structural representation of positioning strip;
Fig. 3 is the structural representation of main shaft;
Fig. 4 is the structural representation of shell;
Fig. 5 is the worm's eye view of main shaft;
Fig. 6 is the side view of Fig. 1.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearer, the utility model mode of execution is described in further detail below in conjunction with accompanying drawing.
The utility model embodiment has proposed a kind of pneumatic actuator, and its structure comprises that cylinder body 1 reaches and the piston 3 that moves as shown in Figure 1 in described cylinder body 1, also comprise main shaft 2, and described main shaft 2 is arranged in the cylinder body 1, and described piston 3 drives described main shaft 2 and rotates; Also comprise the positioning strip 5 that is used to limit described piston trajectory, described positioning strip 5 is fixedly set in the described cylinder body 1.
As shown in Figure 1, be provided with limiting stopper 7 in main shaft 2 outsides, limiting stopper 7 is fixed in the cylinder body 1 by spring.
As shown in Figure 2, described positioning strip 5 comprises having framework and be arranged at the interior opening of described framework, and number of openings can be decided according to the quantity of piston 3.The shape of described opening and described piston 3 is suitable.Like this, when as shown in Figure 1 be fixed on positioning strip 5 in the cylinder body 1 time, piston 3 is moved back and forth in the opening of positioning strip 5, spacing so that piston 3 mobile carried out, prevent piston 3 when mobile and cylinder wall bump.
Because piston 3 has predetermined movement locus, therefore can the time positioning strip 5 have predetermined thickness along the moving direction of piston 3, in the total travel of piston 3, all to carry out spacing to piston 3.
As shown in figures 1 and 3, cylinder body 1 can be stretched out in the end of main shaft 2, to connect miscellaneous part.And existing main shaft 2 end edge edge is the right angle, easily the scratch engineering staff.Among the utility model embodiment, that the end edge of main shaft 2 is along being made as the fillet with arc, like this can the better protection engineering staff unlikely injured.And as shown in Figure 5, main shaft bottom has depression to connect other mechanisms (for example valve), anistree shape in this depression is illustrated in figure 5 as, make like this connect more convenient.
As shown in Figure 1, all be provided with shell at the two ends of cylinder body 1, this shell is fixed on the outer wall of cylinder block, and has a projection.In the utility model embodiment as shown in Figure 4, this protruding edge is an arc, and as shown in Figure 1 and Figure 4, the sidewall of described projection forms an oblique angle.Adopt airflow design like this, neither reduce the actual usability of former side cover, alleviated side cover weight simultaneously, reduced the side cover cost, make design more meticulous rationally.
As shown in Figure 6, also be fixed with on cylinder body 1 and regulate silk 8, this adjusting silk 8 can be arranged at the front or the back side of cylinder body 1, can allow the selection the when user is actual as required to be used select suitable product like this.
Further, as shown in Figure 6, on main shaft 2, can be provided with the indicator 9 that is used to show mode of operation.Indicator 9 comprises the base and the rotary head that is fixed on the main shaft 2 that are fixed on the cylinder body 1, and this rotary head can be rotated with respect to this base, so just can indicate the mode of operation of main shaft 2.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. a pneumatic actuator comprises that cylinder body reaches and the piston that moves in described cylinder body, and described main shaft is arranged in the cylinder body, and the described main shaft of described piston actuated rotates; It is characterized in that also comprise the positioning strip that is used to limit described piston trajectory, described positioning strip is fixedly set in the described cylinder body.
2. pneumatic actuator according to claim 1 is characterized in that, described positioning strip comprises having framework and be arranged at the interior opening of described framework, and the shape of described opening and described piston is suitable.
3. pneumatic actuator according to claim 2 is characterized in that, described positioning strip has thickness along described piston movement direction.
4. pneumatic actuator according to claim 3 is characterized in that, described main shaft top sides is along having rounding off.
5. pneumatic actuator according to claim 4 is characterized in that, also comprises shell, and described shell and described outer wall of cylinder block are fixed, and described shell has projection, and described lug is along being arc, and the sidewall of described projection forms an oblique angle.
6. pneumatic actuator according to claim 5 is characterized in that, the main shaft bottom has depression, and described depression is interior octagon.
7. pneumatic actuator according to claim 6 is characterized in that, also comprises indicator, and described indicator comprises and be fixed on the base on the described cylinder body and be fixed in rotary head on the described main shaft that described rotary head can be rotated with respect to described base.
8. pneumatic actuator according to claim 1 is characterized in that, at the cylinder body outer fixing silk of adjusting is arranged, the described thread front or the back side that can be arranged at described cylinder body regulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020283842XU CN201836142U (en) | 2010-08-06 | 2010-08-06 | Pneumatic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020283842XU CN201836142U (en) | 2010-08-06 | 2010-08-06 | Pneumatic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201836142U true CN201836142U (en) | 2011-05-18 |
Family
ID=44006246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020283842XU Expired - Fee Related CN201836142U (en) | 2010-08-06 | 2010-08-06 | Pneumatic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201836142U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240595A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | Dual-action shifting fork type pneumatic actuator |
| CN105240594A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | Single-action shifting fork type pneumatic actuator |
-
2010
- 2010-08-06 CN CN201020283842XU patent/CN201836142U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240595A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | Dual-action shifting fork type pneumatic actuator |
| CN105240594A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | Single-action shifting fork type pneumatic actuator |
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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: 20110518 Termination date: 20180806 |