CN106704297B - Pneumatic actuator - Google Patents
Pneumatic actuator Download PDFInfo
- Publication number
- CN106704297B CN106704297B CN201611248487.0A CN201611248487A CN106704297B CN 106704297 B CN106704297 B CN 106704297B CN 201611248487 A CN201611248487 A CN 201611248487A CN 106704297 B CN106704297 B CN 106704297B
- Authority
- CN
- China
- Prior art keywords
- gas chamber
- push rod
- stomata
- piston
- cylinder block
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1471—Guiding means other than in the end cap
Abstract
The present invention provides a kind of pneumatic actuator, including：First cylinder block and the second cylinder block are connected to the both sides of babinet；First piston is set in the first cylinder block, and space in the first cylinder block is divided into the first gas chamber and third gas chamber；Second piston is set in the second cylinder block, and space in the second cylinder block is divided into the second gas chamber and the 4th gas chamber；The first stomata and third stomata are respectively equipped on the cylinder body of first gas chamber and third gas chamber；It is respectively equipped with the second stomata and the 4th stomata on the cylinder body of second gas chamber and the 4th gas chamber；The both ends of biased push rod and center push rod are connect with first piston and second piston respectively, constitute piston motion component；Biased push rod is located at the side of the deviation output shaft of center push rod；Push-rod lock is located in babinet, and push rod locker is all connected with biased push rod and center push rod；One impeller is installed on push rod locker；Impeller is rotated for throw crank；The present invention keeps cylinder operation more steady reliable, also improves torque.
Description
Technical field
The present invention relates to a kind of executing agency, especially a kind of pneumatic actuator.
Background technology
Current existing angle stroke pneumatic actuator is gear ＆ rack structure or shifting fork structure.Both structures are all handles
Piston component centre of motion line is set as one end of the arm of force；This structure is all only set as a core shift, is examined from cost in use
Considering medium and small torque usually selects gear ＆ rack structure, large torque to select shifting fork structure；It is each advantageous；Respectively there is deficiency：Rack-and-pinion
It is compact-sized, arm of force etc. point biasing, but large torque cannot be provided, because more bigger more clumsy, efficiency is lower；Shifting fork structure is simple,
The core shift setting of arm of force side, is suitble to large torque output, also in that the big weighting of body, is confined to lateral deviation core weight imbalance problem,
The space very little of torque arm length selection, inefficient, use cost is relatively high.
Invention content
It is an object of the present invention to overcome the shortcomings of the prior art and provide a kind of pneumatic actuators, for torque
Problem increases torque arm length by the biased push rod being arranged on piston motion component and improves torque value, defeated to reach large torque
The effect gone out.The technical solution adopted by the present invention is：
A kind of pneumatic actuator, which is characterized in that including：
First gas chamber, the second gas chamber, third gas chamber, the 4th gas chamber, the first cylinder block, the second cylinder block, babinet, biasing push away
Bar, center push rod, crank, impeller, the first stomata, the second stomata, third stomata, the 4th stomata, first piston, second live
Plug, push rod locker, output shaft；
First cylinder block and the second cylinder block are connected to the both sides of babinet, constitute an outrigger structure；First piston
It is set in the first cylinder block, space in the first cylinder block is divided into the first gas chamber and third gas chamber；Second piston is set to
In second cylinder block, space in the second cylinder block is divided into the second gas chamber and the 4th gas chamber；Wherein, third gas chamber and the second gas
Room is located at close to the inside of babinet, and the first gas chamber and the 4th gas chamber are located at away from the outside of babinet；First gas chamber and third gas chamber
Cylinder body on be respectively equipped with the first stomata and third stomata；It is respectively equipped with the second stomata on the cylinder body of second gas chamber and the 4th gas chamber
With the 4th stomata；
The both ends of biased push rod and center push rod are connect with first piston and second piston respectively, constitute piston motion group
Part；Biased push rod is located at the side of the deviation output shaft of center push rod；
Push-rod lock is located in babinet, and push rod locker is all connected with biased push rod and center push rod；Pacify on push rod locker
Fill an impeller；
Crank is set in babinet, and the lower end of crank connects output shaft；It is set on crank there are one sliding slot, the impeller is embedded in
In the sliding slot；Impeller is rotated for throw crank, to drive output shaft to rotate.
Further, the first stomata is located at the cylinder body lateral ends that the first gas chamber deviates from babinet；Third stomata is located at third
Cylinder body inner opposite end of the gas chamber close to babinet.
Further, the second stomata is located at cylinder body inner opposite end of second gas chamber close to babinet；4th stomata is located at the 4th
Gas chamber deviates from the cylinder body lateral ends of babinet.
Further, center push rod is located on the central axis of the first cylinder block, the second cylinder block or close to the first cylinder
The central axis of body, the second cylinder block.
Further, impeller uses column or idler wheel.
Further, it is respectively provided with a shoulder at left and right sides of crank, two, crank or so is rotated in place position on babinet
It is respectively provided with a positioning bolt for offseting with the shoulder.
Further, the pneumatic actuator further includes the first spring, second spring；
First spring and second spring are separately positioned in third gas chamber, the 4th gas chamber；One end connection the of first spring
One piston, the other end connect the inside cylinder body of third gas chamber；One end of second spring connects second piston, other end connection the 4th
The outside cylinder body of gas chamber；
Or：
First spring and second spring are separately positioned in the first gas chamber, the second gas chamber；One end connection the of first spring
The outside cylinder body of one gas chamber, the other end connect first piston；One end of second spring connects the inside cylinder body of the second gas chamber, another
End connection second piston.
The advantage of the invention is that：
1）The problem of connecting piston with two push rods, prevented axial rotation when piston motion, enhances motion module
Integral rigidity, keep cylinder operation more steady reliable；
2）Replace guide rod using push rod, optimizes the integraty of structure, incorporate moving parts；
3）Push-rod lock grips the slide-and-guide block for current actuator, the energy damage during exercise of removal slide-and-guide block
Consumption；
4）The impetus of movement conversion is arranged on another push rod other than the center push rod that moves along a straight line, crank is made to exist
It is long that a core shift arm of force is increased other than center transmission shaft point to the core shift torque arm length of piston motion component movement center line again
Degree, therefore the structure for obtaining double core shifts, increasing the arm of force, to make output shaft output torque be doubled.
Description of the drawings
Fig. 1 is one of the state of one pneumatic actuator of the embodiment of the present invention schematic diagram.
Fig. 2 is two schematic diagrames of the state of one pneumatic actuator of the embodiment of the present invention.
Fig. 3 is one of the state of two pneumatic actuator of the embodiment of the present invention schematic diagram.
Fig. 4 is two schematic diagrames of the state of two pneumatic actuator of the embodiment of the present invention.
Specific implementation mode
With reference to specific drawings and examples, the invention will be further described.
Embodiment one, as shown in Figure 1 and Figure 2, pneumatic actuator proposed by the present invention, including：
First gas chamber 1, the second gas chamber 2, third gas chamber 3, the 4th gas chamber 4, the first cylinder block 5, the second cylinder block 6, babinet
7, biased push rod 8, center push rod 9, crank 10, impeller 11, the first stomata 12, the second stomata 13, third stomata 14, the 4th gas
Hole 15, first piston 16, second piston 17, push rod locker 18, the first positioning bolt 19, the second positioning bolt 20, output shaft 21；
First cylinder block 5 and the second cylinder block 6 are connected to the both sides of babinet 7, constitute an outrigger structure；First lives
Plug 16 is set in the first cylinder block 5, and space in the first cylinder block 5 is divided into the first gas chamber 1 and third gas chamber 3；Second lives
Plug 17 is set in the second cylinder block 6, and space in the second cylinder block 6 is divided into the second gas chamber 2 and the 4th gas chamber 4；Wherein,
Three gas chambers 3 and the second gas chamber 2 are located at close to the inside of babinet 7, and the first gas chamber 1 and the 4th gas chamber 4 are located at away from the outer of babinet 7
Side；The first stomata 12 and third stomata 14 are respectively equipped on the cylinder body of first gas chamber 1 and third gas chamber 3；Second gas chamber 2 and the 4th
The second stomata 13 and the 4th stomata 15 are respectively equipped on the cylinder body of gas chamber 4；Preferably, the first stomata 12 is located at the first gas chamber 1 back of the body
Cylinder body lateral ends from babinet 7；Third stomata 14 is located at cylinder body inner opposite end of the third gas chamber 3 close to babinet 7.Second stomata
13 are located at cylinder body inner opposite end of second gas chamber 2 close to babinet 7；4th stomata 15 is located at the cylinder body that the 4th gas chamber 4 deviates from babinet 7
Lateral ends.
The both ends of biased push rod 8 and center push rod 9 are connect with first piston 16 and second piston 17 respectively, constitute piston fortune
Dynamic component；Usual center push rod 9 is located on the central axis of the first cylinder block 5, the second cylinder block 6, but also center is allowed to push away
Bar 9 is offset slightly from the central axis of the first cylinder block 5, the second cylinder block 6, as long as being generally in the first cylinder block 5, the second cylinder
The axial centre of body 6 is nearby；Biased push rod 8 is located at the side of the deviation output shaft 21 of center push rod 9；
Push rod locker 18 is set in babinet 7, and push rod locker 18 is all connected with biased push rod 8 and center push rod 9；In push-rod lock
One impeller 11 is installed on folder 18；Impeller 11 is rotated for throw crank 10, in order to match with the sliding slot 101 on crank 10
It closes, simple column may be used in impeller 11, or more preferably, can be further reduced using idler wheel and be moved in sliding slot 101
Frictional force when dynamic；It should be noted that push rod locker 18 be a component-dedicated title, do not limit its be a lock body or
It is a clip；
Crank 10 is set in babinet 7, and the lower end of crank 10 connects output shaft 21；Sliding slot 101 there are one being set on crank 10, institute
Impeller 11 is stated to be embedded in the sliding slot 101；After the rotation of 11 throw crank 10 of impeller, output shaft 21 can be driven to rotate；
10 left and right sides of crank is respectively provided with a shoulder 102, and it is each to be rotated in place position for 10 or so two, crank on babinet 7
If there are one the positioning bolts 19,20 for offseting with the shoulder 102；
Compressed air is accessed to the first gas chamber 1, the second gas chamber 2 by the first stomata 12, the second stomata 13 during use,
Piston motion component is pushed to be moved to third gas chamber 3,4 direction of the 4th gas chamber, third gas chamber 3, the confining gas of the 4th gas chamber 4 are logical
Third stomata 14, the 4th stomata 15 discharge gas chamber are crossed, fixed push rod locker 18 follows work on biased push rod 8, center push rod 9
Plug moving parts move together, and 11 throw crank 10 of impeller on push rod locker 18 drives output shaft 21 to rotate；If
Change and compressed air is accessed by third stomata 14, the 4th stomata 15, the first stomata 12, the second stomata 13 change and make gas vent, then living
Plug moving parts move to the first gas chamber 1,2 direction of the second gas chamber, crank 10 impeller 11 drive under drive output shaft 21 to
This azimuthal rotational motion；
Embodiment two, as shown in Figure 3, Figure 4；Compared with embodiment one, the first spring 22 and are increased in embodiment two
Two springs 23, piston motion component rely on spring reset, remaining structure is the same as embodiment one；
First spring 22 and second spring 23 are separately positioned in third gas chamber 3, the 4th gas chamber 4；The one of first spring 22
End connection first piston 16, the other end connect the inside cylinder body of third gas chamber 3；One end of second spring 23 connects second piston
17, the other end connects the outside cylinder body of the 4th gas chamber 4；
Compressed air is accessed to the first gas chamber 1, the second gas chamber 2 by the first stomata 12, the second stomata 13 during use,
Piston motion component is pushed to be moved to third gas chamber 3,4 direction of the 4th gas chamber, third gas chamber 3, the confining gas of the 4th gas chamber 4 are logical
Third stomata 14, the 4th stomata 15 discharge gas chamber are crossed, fixed push rod locker 18 follows work on biased push rod 8, center push rod 9
Plug moving parts move together, and 11 throw crank 10 of impeller on push rod locker 18 drives output shaft 21 to rotate；When
When being vented the first gas chamber 1, air pressure in the second gas chamber 2, first piston 16 and second piston 17 drive work under the promotion of spring
Entire pneumatic actuator is restored to original position；
In addition, the first spring 22 and second spring 23 can also be separately positioned in the first gas chamber 1, the second gas chamber 2；First
One end of spring 22 connects the outside cylinder body of the first gas chamber 1, and the other end connects first piston 16；One end of second spring 23 connects
The inside cylinder body of second gas chamber 2, the other end connect second piston 17；
Third stomata 14, the 4th stomata 15 access compressed air, and the first stomata 12, the second stomata 13 work for being vented
Process is similar with the above process, repeats no more.
Compared to the prior art, improvement of the invention is：
1）Double pusher structures are devised, current shift fork cylinder is that single pusher structure or single push rod add guiding rod structure, this
The moving parts kinetic stability and stiffening effect of invention are more preferable.
2）The design replaces the design of guide rod with push rod, this component is made to become the effect of major function from miscellaneous function,
Piston motion component has been reformed, the globality of structure is optimized.
3）Moving parts are arranged fixed push rod locker and are eliminated instead of the slide-and-guide block in current actuator
The energy loss of this component.
4）The impetus of movement conversion is arranged on another push rod other than the center push rod that moves along a straight line, crank is made to exist
It is long that a core shift arm of force is increased other than center transmission shaft point to the core shift torque arm length of piston motion component movement center line again
Degree, therefore the structure for obtaining double core shifts, increasing the arm of force, to make output shaft output torque be doubled.
Claims (4)
1. a kind of pneumatic actuator, which is characterized in that including：
First gas chamber (1), the second gas chamber (2), third gas chamber (3), the 4th gas chamber (4), the first cylinder block (5), the second cylinder block
(6), babinet (7), biased push rod (8), center push rod (9), crank (10), impeller (11), the first stomata (12), the second stomata
(13), third stomata (14), the 4th stomata (15), first piston (16), second piston (17), push rod locker (18), output shaft
(21)；
First cylinder block (5) and the second cylinder block (6) are connected to the both sides of babinet (7), constitute an outrigger structure；First
Piston (16) is set in the first cylinder block (5), and the first cylinder block (5) interior space is divided into the first gas chamber (1) and third gas
Room (3)；Second piston (17) is set in the second cylinder block (6), and the second cylinder block (6) interior space is divided into the second gas chamber
(2) and the 4th gas chamber (4)；Wherein, third gas chamber (3) and the second gas chamber (2) are located at close to the inside of babinet (7), the first gas chamber
(1) it is located at away from the outside of babinet (7) with the 4th gas chamber (4)；It is set respectively on the cylinder body of first gas chamber (1) and third gas chamber (3)
There are the first stomata (12) and third stomata (14)；It is respectively equipped with the second stomata on the cylinder body of second gas chamber (2) and the 4th gas chamber (4)
(13) and the 4th stomata (15)；
The both ends of biased push rod (8) and center push rod (9) are connect with first piston (16) and second piston (17) respectively, are constituted and are lived
Fill in moving parts；Biased push rod (8) is located at the side of the deviation output shaft (21) of center push rod (9)；
Push rod locker (18) is set in babinet (7), and push rod locker (18) is all connected with biased push rod (8) and center push rod (9)；
One impeller (11) is installed on push rod locker (18)；
Crank (10) is set in babinet (7), the lower end connection output shaft (21) of crank (10)；Sliding slot there are one being set on crank (10)
(101), in the embedded sliding slot (101) of the impeller (11)；Impeller (11) is rotated for throw crank (10), to band
Dynamic output shaft (21) rotation；
First stomata (12) is located at the cylinder body lateral ends that the first gas chamber (1) deviates from babinet (7)；Third stomata (14) is located at third
Cylinder body inner opposite end of the gas chamber (3) close to babinet (7)；
Second stomata (13) is located at cylinder body inner opposite end of the second gas chamber (2) close to babinet (7)；4th stomata (15) is located at the 4th
Gas chamber (4) deviates from the cylinder body lateral ends of babinet (7)；
Center push rod (9) is located on the central axis of the first cylinder block (5), the second cylinder block (6) or close to the first cylinder block
(5), the central axis of the second cylinder block (6).
2. pneumatic actuator as described in claim 1, which is characterized in that
Impeller (11) uses column or idler wheel.
3. pneumatic actuator as described in claim 1, which is characterized in that
It is respectively provided with a shoulder (102) at left and right sides of crank (10), crank (10) left and right two is rotated in place position on babinet (7)
It sets and is respectively provided with a positioning bolt (19,20) for offseting with the shoulder (102).
4. pneumatic actuator as described in claim 1, which is characterized in that
Further include the first spring (22), second spring (23)；
First spring (22) and second spring (23) are separately positioned in third gas chamber (3), the 4th gas chamber (4)；First spring
(22) one end connection first piston (16), the other end connect the inside cylinder body of third gas chamber (3)；One end of second spring (23)
Second piston (17) is connected, the other end connects the outside cylinder body of the 4th gas chamber (4)；
Or：
First spring (22) and second spring (23) are separately positioned in the first gas chamber (1), the second gas chamber (2)；First spring
(22) one end connects the outside cylinder body of the first gas chamber (1), and the other end connects first piston (16)；One end of second spring (23)
The inside cylinder body of the second gas chamber (2) is connected, the other end connects second piston (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611248487.0A CN106704297B (en) | 2016-12-29 | 2016-12-29 | Pneumatic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611248487.0A CN106704297B (en) | 2016-12-29 | 2016-12-29 | Pneumatic actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106704297A CN106704297A (en) | 2017-05-24 |
| CN106704297B true CN106704297B (en) | 2018-07-13 |
Family
ID=58903807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611248487.0A Expired - Fee Related CN106704297B (en) | 2016-12-29 | 2016-12-29 | Pneumatic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106704297B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779871B (en) * | 2019-02-28 | 2024-01-19 | 王湫锂 | Hydraulic injection device and application thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2178537C2 (en) * | 1999-04-19 | 2002-01-20 | Шепелев Александр Александрович | Mechanism to convert movement of piston into rotation of piston machine shaft |
| CN2646452Y (en) * | 2003-10-14 | 2004-10-06 | 天津市百孚执行器技术有限公司 | Delicate and miniature angular travel pneumatic actuator |
| CN201730887U (en) * | 2010-05-12 | 2011-02-02 | 孙小平 | Pneumatic actuator |
| CN202746734U (en) * | 2012-09-17 | 2013-02-20 | 成都迈可森流体控制设备有限公司 | Double-guidance shifting fork transmission box |
| CN203836349U (en) * | 2014-04-21 | 2014-09-17 | 杭州中科阀门有限公司 | Novel pneumatic diaphragm type angular travel actuator |
| CN203906973U (en) * | 2014-06-25 | 2014-10-29 | 无锡宝牛阀业有限公司 | Four-cylinder large torque pneumatic angular travel actuator |
| CN104565508A (en) * | 2014-12-22 | 2015-04-29 | 上海大成仪表有限责任公司 | Transverse-mounting type pneumatic piston executing mechanism of angular travel adjusting valve |
-
2016
- 2016-12-29 CN CN201611248487.0A patent/CN106704297B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2178537C2 (en) * | 1999-04-19 | 2002-01-20 | Шепелев Александр Александрович | Mechanism to convert movement of piston into rotation of piston machine shaft |
| CN2646452Y (en) * | 2003-10-14 | 2004-10-06 | 天津市百孚执行器技术有限公司 | Delicate and miniature angular travel pneumatic actuator |
| CN201730887U (en) * | 2010-05-12 | 2011-02-02 | 孙小平 | Pneumatic actuator |
| CN202746734U (en) * | 2012-09-17 | 2013-02-20 | 成都迈可森流体控制设备有限公司 | Double-guidance shifting fork transmission box |
| CN203836349U (en) * | 2014-04-21 | 2014-09-17 | 杭州中科阀门有限公司 | Novel pneumatic diaphragm type angular travel actuator |
| CN203906973U (en) * | 2014-06-25 | 2014-10-29 | 无锡宝牛阀业有限公司 | Four-cylinder large torque pneumatic angular travel actuator |
| CN104565508A (en) * | 2014-12-22 | 2015-04-29 | 上海大成仪表有限责任公司 | Transverse-mounting type pneumatic piston executing mechanism of angular travel adjusting valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106704297A (en) | 2017-05-24 |
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Granted publication date: 20180713 Termination date: 20181229 |