CN107588228B - Shifting fork type pneumatic actuator - Google Patents
Shifting fork type pneumatic actuator Download PDFInfo
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- CN107588228B CN107588228B CN201710887920.3A CN201710887920A CN107588228B CN 107588228 B CN107588228 B CN 107588228B CN 201710887920 A CN201710887920 A CN 201710887920A CN 107588228 B CN107588228 B CN 107588228B
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- 238000007789 sealing Methods 0.000 claims abstract description 70
- 230000005540 biological transmission Effects 0.000 claims description 20
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The invention discloses a shifting fork type pneumatic actuator, which comprises a cylinder module, a box module and a spring module, and is characterized in that: the cylinder module and the spring module are connected with the box module through fasteners. The beneficial effects of the invention are as follows: the symmetrical shifting fork structure and the asymmetrical shifting fork structure are adopted, so that the actuator which is originally applicable to the ball valve can be applicable to butterfly valves with larger torque on the premise of not changing the specification of the actuator, and the type selection cost of the actuator is reduced; the pneumatic actuator adopts a fully-closed design, and particularly, the sealing design is arranged at the contact positions of the upper part and the lower part of the shifting fork of the box module and the box body, so that the inside of the actuator can not enter liquid due to leakage of a valve or a pipeline, external dust and corrosive gas can be effectively prevented from entering the inside of the actuator, and the service life of the actuator is prolonged; the adjusting bolt is locked by the sealing nut, so that rainwater or dust is prevented from entering the box body through a thread gap of the adjusting bolt.
Description
Technical Field
The invention belongs to the technical field of actuators, and particularly relates to a shifting fork type pneumatic actuator.
Background
1. The output torque of the current partial rotation pneumatic actuator does not distinguish the torque rule of the ball valve and the butterfly valve in the motion process, but uniformly adopts an actuator to drive the ball valve and the butterfly valve, so that the defect is that in order to enable the selection to meet the requirement of the butterfly valve on driving torque, larger actuator specifications are required to be selected, and the selection cost of the actuator is increased.
2. The pneumatic actuator disclosed by the invention adopts a fully-closed design, and particularly, the sealing design is arranged at the contact positions of the upper part and the lower part of the shifting fork of the box module and the box body, so that the inside of the actuator is ensured not to enter liquid due to leakage of a valve or a pipeline, external dust and corrosive gas can be effectively prevented from entering the inside of the actuator, and the service life of the actuator is prolonged.
3. The cylinder module adopts a piston rod structure, and an anti-rotation structure is required to be added at the connection position of the piston rod and the sliding block. At present, the traditional structure adopts the glue to prevent loosening, and under the condition of long-term open-air work, weather resistance and the like of the glue are needed to be considered, so that the possibility of loosening exists. Once the fastening glue fails, the piston rotates due to uneven stress, and finally the threaded connection of the piston rod or the spring rod and the sliding block fails, so that the actuator cannot normally act.
Disclosure of Invention
The invention aims to provide a shifting fork type pneumatic actuator for solving the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a pneumatic executor of shift fork formula, includes cylinder module, box module and spring module, its characterized in that: the cylinder module and the spring module are connected with the box module through fasteners;
the cylinder module comprises a cylinder cover, a cylinder body, a piston rod, a connecting cover and a pull rod, wherein the cylinder cover, the cylinder body and the connecting cover are connected through the pull rod and a nut, and the piston is in threaded rotation connection with the piston rod;
the box module comprises a box body, a box cover, rotation preventing screws, a transmission pin, a sliding block, a shifting fork, an adjusting bolt, a sealing nut, a sealing ring, a guide rod, an indicating module, a shifting fork upper sealing ring, a first oil-free self-lubricating bearing, a second oil-free self-lubricating bearing, a shifting fork upper sealing ring, a shifting fork lower sealing ring and a pin shaft cover plate, wherein the shifting fork is connected with the box body and the box cover, the contact part between the upper shaft and the lower shaft of the shifting fork and the box body and the box cover is provided with the shifting fork upper sealing ring and the shifting fork lower sealing ring, and the sliding block, the pin shaft cover plate, the transmission pin and the rotation preventing screws are arranged between two fan blades of the shifting fork. When the actuator is in single action, one end of the sliding block is connected with the piston rod, the other end of the sliding block is connected with the spring rod, grooves are formed in the tail ends of the threads of the spring rod and the piston rod, the anti-rotation screw is embedded into the grooves of the spring rod and the piston rod through the sliding block, the sliding block is in rolling connection with the transmission pin, the pin shaft cover plates at the outer ends of the two fan blades of the shifting fork are used for keeping the connection between the sliding block and the transmission pin, the guide rod is in sliding connection with the sliding block, the adjusting bolt is connected with the box body, the adjusting bolt is in rotary connection with the sealing nut, the sealing nut is provided with a sealing groove, and a sealing ring is arranged in the sealing nut;
the spring module is only used for a single-acting actuator, the spring module comprises a spring cylinder connecting cover, a spring cylinder, a spring, a screw, a large nut, a spring seat, a rear cover, a blank cap and a spring rod, the spring is arranged on the outer side of the spring rod, the spring cylinder connecting cover is arranged on the right side of the spring, the large nut is arranged at the left end of the spring rod, the large nut (305) is fixed with the left end of the spring rod (309) through threads, and the screw (305) is used for preventing the large nut (305) from rotating. The left side of spring is provided with the spring holder, the left side of spring holder is provided with the back lid, the centre of back lid is provided with the blank cap.
Preferably, a sealing ring is arranged between the piston and the piston rod, a guide piece and a sealing piece are arranged between the piston and the cylinder body, a guide piece and a sealing piece are arranged between the piston rod and the cylinder cover, and a sealing piece is arranged between the cylinder cover and the cylinder body, and a connecting cover and the cylinder body.
Preferably, when the actuator is double-acting, a baffle and a fastener are arranged at one end of the box body module far away from the cylinder module, and sealing rings are arranged between the baffle and the box body module and between the baffle and the fastener.
Preferably, when the actuator is double-acting, one end of the sliding block is connected with the piston rod, and the other end is free and is not connected with other parts.
Preferably, the transmission pin is in rolling friction connection with the sliding block, and an oil-free self-lubricating bearing is arranged between the transmission pin and the sliding block.
Preferably, the sliding block is in sliding friction connection with the guide rod, and an oil-free self-lubricating bearing is arranged between the sliding block and the guide rod.
Preferably, when the actuator is opened or closed, the adjusting bolt collides with the shifting fork to play a limiting role, and meanwhile, the position of the actuator can be adjusted by adjusting the position of the adjusting bolt.
Preferably, the spring cylinder connecting cover, the spring cylinder and the rear cover are connected in a welding mode.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts symmetrical and asymmetrical shifting fork structures, and can realize that the symmetrical torque output suitable for the ball valve is changed into larger initial torque and smaller final torque suitable for the butterfly valve by only changing the shifting fork structure. On the premise of not changing the specification of the actuator, the device can be suitable for butterfly valves with larger torque, and the type selection cost of the actuator is reduced.
2. The pneumatic actuator adopts a fully-closed design, and particularly, the sealing design is arranged at the contact positions of the upper part and the lower part of the shifting fork of the box module and the box body, so that the inside of the actuator is ensured not to leak into liquid due to the leakage of a valve or a pipeline, external dust and corrosive gas can be effectively prevented from entering the inside of the actuator, and the service life of the actuator is prolonged; the adjusting bolt is locked by the sealing nut, so that rainwater or dust is prevented from entering the box body through a thread gap of the adjusting bolt.
3. According to the invention, a piston rod structure is adopted for the cylinder module, an anti-rotation structure is required to be added at the connection position of the piston rod and the sliding block, a groove is formed at the tail end of the threaded connection of the piston rod and the spring rod, an anti-rotation screw is arranged at the connection position of the sliding block and the spring rod, and the anti-rotation screw is embedded into the groove at the tail end of the threaded connection of the piston rod or the spring rod through the sliding block, so that rotation caused by uneven stress of the piston is prevented.
Drawings
FIG. 1 is a schematic diagram of a single-acting actuator of the present invention;
FIG. 2 is a schematic structural view of the appearance of a single-acting actuator according to the present invention;
FIG. 3 is a cross-sectional view of part A of the present invention;
FIG. 4 is a schematic diagram of a dual action actuator of the present invention;
FIG. 5 is a schematic structural view of the appearance of a dual-action actuator of the present invention;
FIG. 6 is a cross-sectional view of section B of the present invention;
FIG. 7 is a structural diagram of a symmetrical structure of a shifting fork middle groove of the present invention;
FIG. 8 is a block diagram of an asymmetrical structure of a fork intermediate slot of the present invention;
FIG. 9 is a schematic view of a seal nut according to the present invention
In the figure: 1. a cylinder module; 2. a box module; 3. a spring module; 101. a cylinder cover; 102. a cylinder; 103. a piston; 104. a piston rod; 105. a connection cover; 106. a pull rod; 201. a case; 202. a case cover; 203. an anti-rotation screw; 204. a drive pin; 205. a slide block; 206. a shifting fork; 207. an adjusting bolt; 208. a seal nut; 209. a seal ring; 210. a guide rod; 211. an indication module; 212. a sealing ring is arranged on the shifting fork; 213. a first oil free self-lubricating bearing; 214. the second oil-free self-lubricating bearing; 215. a shifting fork lower sealing ring; 216. a pin cover plate; 217. a baffle; 301. the spring cylinder is connected with the cover; 302. a spring cylinder; 303. a spring; 304. a screw; 305. a large nut; 306. a spring seat; 307. a rear cover; 308. a cover is closed; 309. a spring rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1 to 3, the single-acting shifting fork type actuator comprises a cylinder module 1, a box module 2 and a spring module 3, wherein the cylinder module 1 and the spring module 3 are connected with the box module 2 through fasteners.
The cylinder module 1 comprises a cylinder cover 101, a cylinder body 102, a piston 103, a piston rod 104, a connecting cover 105 and a pull rod 106, wherein the cylinder cover 101, the cylinder body 102 and the connecting cover 105 are connected through the pull rod 106 and a nut, the piston 103 is connected with the piston rod 104 through threads, a sealing ring is arranged between the piston 103 and the piston rod 104, a guide piece and a sealing piece are arranged between the piston 103 and the cylinder body 102, and a guide piece and a sealing piece are arranged between the piston rod 104 and the cylinder cover 101. A sealing element is arranged between the cylinder cover 101 and the cylinder body 102 and between the connecting cover 105 and the cylinder body 102;
the box module 2 comprises a box 201, a box cover 202, an anti-rotation screw 203, a transmission pin 204, a sliding block 205, a shifting fork 206, an adjusting bolt 207, a sealing nut 208, a sealing ring 209, a guide rod 210, an indication module 211, a shifting fork upper sealing ring 212, a first oil-free self-lubricating bearing 213, a second oil-free self-lubricating bearing 214, a shifting fork lower sealing ring 215 and a pin shaft cover plate 216;
the shifting fork 206 is connected with the box 201 and the box cover 202, a shifting fork upper sealing ring 212, a shifting fork lower sealing ring 215, a first oil-free self-lubricating bearing 213 and a second oil-free self-lubricating bearing 214 are arranged at the contact part of the upper shaft and the lower shaft of the shifting fork 206 with the box 201 and the box cover 202, the sliding block 205 is positioned between two blades of the shifting fork 206, one end of the sliding block 205 is connected with the piston rod 104, and the other end is connected with the spring rod 309 for a single-acting actuator; the spring rod 309 and the threaded end of the piston rod 104 are provided with grooves, and the anti-rotation screw 203 is embedded into the grooves of the spring rod 309 and the piston rod 104 through the sliding block 205, so that the anti-rotation screw plays a role in preventing rotation; the transmission pin 204 is in rolling friction contact with the sliding block 205, an oilless self-lubricating bearing is arranged between the transmission pin 204 and the sliding block 205, and the sliding block 205 is kept in contact with the transmission pin 204 through a pin shaft cover plate 216 arranged at the outer ends of two fan blades of the shifting fork 206; the guide rod 210 is in sliding friction contact with the sliding block 205, and an oil-free self-lubricating bearing is arranged between the sliding block 205 and the guide rod 210. The adjusting bolt 207 is connected with the box 201, when the actuator is opened or closed, the adjusting bolt 207 collides with the shifting fork 206 to play a limiting role, and meanwhile, the position of the actuator can be adjusted by adjusting the position of the adjusting bolt 207; the sealing nut 208 is connected with the adjusting bolt 207, when the position of the adjusting bolt 207 is adjusted, the sealing nut 208 is screwed tightly, so that the locking effect can be achieved, meanwhile, the sealing nut 208 is provided with a sealing groove, and a sealing ring 209 is arranged in the sealing groove, so that the sealing nut 208 also has the effects of rain resistance and dust resistance.
The action process is as follows: for a single-action actuator, when the left cavity of the piston 103 is ventilated, air pressure pushes the piston 103 to move rightwards, the shifting fork 206 swings rightwards under the drive of the piston rod 104, and the actuator outputs anticlockwise torque to push the valve to punch a card; when the left cavity of the piston 103 is out of gas, the spring drives the shifting fork 206 to swing leftwards through the spring rod, and the actuator outputs clockwise torque to push the valve to close. The positions of the spring module 3 and the cylinder module 1 can be interchanged, so that the function conversion from spring reset closing to spring reset opening is realized.
Example 2
Referring to fig. 4-6, a double acting shifting fork type actuator comprises a cylinder module 1, a box module 2 and the cylinder module 1 is connected with the box module 2 through fasteners.
The cylinder module 1 includes a cylinder head 101, a cylinder block 102, a piston 103, a piston rod 104, a connecting cover 105, and a rod 106. The cylinder cover 101, the cylinder body 102 and the connecting cover 105 are connected through a pull rod 106 and a nut, the piston 103 is connected with the piston rod 104 through threads, and a sealing ring is arranged between the piston 103 and the piston rod 104. Between the piston 103 and the cylinder 102, a guide and a seal are provided between the piston rod 104 and the cylinder head 101. A sealing element is arranged between the cylinder cover 101 and the cylinder body 102 and between the connecting cover 105 and the cylinder body 102;
the box module 2 comprises a box 201, a box cover 202, an anti-rotation screw 203, a transmission pin 204, a sliding block 205, a shifting fork 206, an adjusting bolt 207, a sealing nut 208, a sealing ring 209, a guide rod 210, an indication module 211, a shifting fork upper sealing ring 212, a first oil-free self-lubricating bearing 213, a second oil-free self-lubricating bearing 214, a shifting fork lower sealing ring 215 and a pin shaft cover plate 216;
in the present invention, the fork 206 inside the case module 2 is divided into a symmetrical structure and an asymmetrical structure. The shifting fork 206 with the symmetrical structure can output the same torque with the starting point and the finishing point, and is more suitable for the torque characteristic of the ball valve; the asymmetrically configured shift fork 206 can output larger initial torque, which is more suitable for the torque characteristic of the butterfly valve.
The shifting fork 206 is connected with the box 201 and the box cover 202, a shifting fork upper sealing ring 212, a shifting fork lower sealing ring 215, a first oil-free self-lubricating bearing 213, a second oil-free self-lubricating bearing 214 and a sliding block 205 are arranged at the contact part of the upper shaft and the lower shaft of the shifting fork 206 with the box 201 and the box cover 202 and are positioned between two blades of the shifting fork 206, one end of the sliding block 205 is connected with the piston rod 104, and the other end is free and not connected with other parts for a double-acting actuator; the threaded tail end of the piston rod 104 is provided with a groove, and the anti-rotation screw 203 is embedded into the groove of the piston rod 104 through the sliding block 205, so that the anti-rotation function is realized; the transmission pin 204 is in rolling friction contact with the sliding block 205, an oilless self-lubricating bearing is arranged between the transmission pin 204 and the sliding block 205, and the sliding block 205 is kept in contact with the transmission pin 204 through a pin shaft cover plate 216 arranged at the outer ends of two fan blades of the shifting fork 206; the guide rod 210 is in sliding friction contact with the sliding block 205, and an oil-free self-lubricating bearing is arranged between the sliding block 205 and the guide rod 210. The adjusting bolt 207 is connected with the box 201, when the actuator is opened or closed, the adjusting bolt 207 collides with the shifting fork 206 to play a limiting role, and meanwhile, the position of the actuator can be adjusted by adjusting the position of the adjusting bolt 207; the sealing nut 208 is connected with the adjusting bolt 207, when the position of the adjusting bolt 207 is adjusted, the sealing nut 208 is screwed tightly, so that the locking effect can be achieved, meanwhile, the sealing nut 208 is provided with a sealing groove, and a sealing ring 209 is arranged in the sealing groove, so that the sealing nut 208 also has the effects of rain resistance and dust resistance.
One end of the box module 2 is connected with the cylinder module 1, and the other end is plugged by a baffle 217 and a fastener. Sealing rings are arranged between the baffle 217 and the box module 2 and between the baffle 217 and the fastener.
The action process is as follows: for the double-acting actuator, when the left cavity of the piston 103 is ventilated, air pressure pushes the piston 103 to move rightwards, the shifting fork 206 swings rightwards under the drive of the piston rod 104, and the actuator outputs anticlockwise torque to push the valve to punch a card; when the right cavity of the piston 103 is ventilated, air pressure pushes the piston 103 to move leftwards, the shifting fork 206 swings leftwards under the drive of the piston rod 104, and the actuator outputs clockwise torque to push the valve to be closed.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a shift fork formula pneumatic actuator, includes cylinder module (1), box module (2) and spring module (3), its characterized in that: the cylinder module (1) and the spring module (3) are connected with the box module (2) through fasteners; the cylinder module (1) comprises a cylinder cover (101), a cylinder body (102), a piston (103), a piston rod (104), a connecting cover (105) and a pull rod (106), wherein the cylinder cover (101), the cylinder body (102) and the connecting cover (105) are connected through the pull rod (106) and a nut, and the piston (103) is connected with the piston rod (104) through threads; the box module (2) comprises a box body (201), a box cover (202), anti-rotation screws (203), a transmission pin (204), a sliding block (205), a shifting fork (206), an adjusting bolt (207), a sealing nut (208), a sealing ring (209), a guide rod (210), an indicating module (211), a shifting fork upper sealing ring (212), a first oil-free self-lubricating bearing (213), a second oil-free self-lubricating bearing (214), a shifting fork lower sealing ring (215) and a pin shaft cover plate (216), wherein the shifting fork (206) is connected with the box body (201) and the box cover (202), a shifting fork upper sealing ring (212) and a shifting fork lower sealing ring (215) are arranged at the contact position of an upper shaft and a lower shaft of the shifting fork (206) with the box body (201) and the box cover (202), and the sliding block (205), the pin shaft cover plate (216), the transmission pin (204) and the anti-rotation screws (203) are arranged between two fan blades of the shifting fork (206); when the actuator acts singly, one end of the sliding block (205) is connected with the piston rod (104), the other end of the sliding block (205) is connected with the spring rod (309), the spring rod (309) is provided with a groove at the tail end of a thread of the piston rod (104), the anti-rotation screw (203) is embedded into the spring rod (309) and the groove of the piston rod (104) through the sliding block (205), the sliding block (205) is connected with the transmission pin (204) through rolling, the pin shaft cover plates (216) at the outer ends of two fan blades of the shifting fork (206) are used for keeping the connection between the sliding block (205) and the transmission pin (204), the guide rod (210) is connected with the sliding block (205) in a sliding way, the adjusting bolt (207) is connected with the box body (201), the adjusting bolt (207) is connected with the sealing nut (208) in a rotating way, and the sealing nut (208) is provided with a sealing groove; the spring module (3) is only used for a single-acting actuator, the spring module (3) comprises a spring cylinder connecting cover (301), a spring cylinder (302), a spring (303), a screw (304), a large nut (305), a spring seat (306), a rear cover (307), a blank cap (308) and a spring rod (309), the spring (303) is arranged on the outer side of the spring rod (309), the spring cylinder connecting cover (301) is arranged on the right side of the spring (303), the large nut (305) is arranged at the left end of the spring rod (309), the large nut (305) is fixed with the left end of the spring rod (309) through threads, and the screw (304) is used for preventing the large nut (305) from rotating; a spring seat (306) is arranged on the left side of the spring (303), a rear cover (307) is arranged on the left side of the spring seat (306), and a blank cap (308) is arranged in the middle of the rear cover (307); a sealing ring is arranged between the piston (103) and the piston rod (104), a guide piece and a sealing piece are arranged between the piston (103) and the cylinder body (102) and between the piston rod (104) and the cylinder cover (101), and sealing pieces are arranged between the cylinder cover (101) and the cylinder body (102) and between the connecting cover (105) and the cylinder body (102); when the actuator is double-acting, one end, far away from the cylinder module (1), of the box module (2) is provided with a baffle plate (217) and a fastener, and a sealing ring is arranged between the baffle plate (217) and the box module (2) and between the baffle plate (217) and the fastener; when the actuator is double-acting, one end of the sliding block (205) is connected with the piston rod (104), and the other end is free and is not connected with other parts.
2. A fork-type pneumatic actuator as claimed in claim 1, wherein: the transmission pin (204) is in rolling friction connection with the sliding block (205), and an oil-free self-lubricating bearing is arranged between the transmission pin and the sliding block.
3. A fork-type pneumatic actuator as claimed in claim 1, wherein: the sliding block (205) is in sliding friction connection with the guide rod (210), and an oil-free self-lubricating bearing is arranged between the sliding block and the guide rod.
4. A fork-type pneumatic actuator as claimed in claim 1, wherein: when the actuator is opened or closed, the adjusting bolt (207) collides with the shifting fork (206) to play a limiting role, and meanwhile, the position of the actuator is adjusted by adjusting the position of the adjusting bolt (207).
5. A fork-type pneumatic actuator as claimed in claim 1, wherein: the spring cylinder connecting cover (301), the spring cylinder (302) and the rear cover (307) are connected in a welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710887920.3A CN107588228B (en) | 2017-09-26 | 2017-09-26 | Shifting fork type pneumatic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710887920.3A CN107588228B (en) | 2017-09-26 | 2017-09-26 | Shifting fork type pneumatic actuator |
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| Publication Number | Publication Date |
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| CN107588228A CN107588228A (en) | 2018-01-16 |
| CN107588228B true CN107588228B (en) | 2023-07-14 |
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| CN201710887920.3A Active CN107588228B (en) | 2017-09-26 | 2017-09-26 | Shifting fork type pneumatic actuator |
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| CN108626472A (en) * | 2018-04-16 | 2018-10-09 | 连云港奇晴光电照明有限公司 | A kind of executing agency |
| CN108692094A (en) * | 2018-07-26 | 2018-10-23 | 温州滨特尔控制设备有限公司 | A kind of pneumatic actuator |
| CN109296746A (en) * | 2018-11-15 | 2019-02-01 | 自贡新比隆阀门有限公司 | A kind of balanced type executing agency |
| CN109296815A (en) * | 2018-11-16 | 2019-02-01 | 福斯流体控制（苏州）有限公司 | Fork type pneumatic actuator |
| CN109442086A (en) * | 2018-12-11 | 2019-03-08 | 中国船舶重工集团公司第七〇九研究所 | A kind of underwater ball valve executing agency based on both arms shift fork and Worm Wheel System |
| 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 |
| CN115823330A (en) * | 2022-12-19 | 2023-03-21 | 无锡福斯拓科科技有限公司 | Pneumatic actuator with rapid exhaust buffer structure |
| CN115929978B (en) * | 2022-12-23 | 2023-11-24 | 无锡福斯拓科科技有限公司 | Offset type shifting fork applying curve groove type |
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| CN202629285U (en) * | 2012-05-23 | 2012-12-26 | 罗兰自控阀业（上海）有限公司 | Asymmetrical heavy-load shifting fork type actuator |
| WO2014040475A1 (en) * | 2012-09-17 | 2014-03-20 | 成都迈可森流体控制设备有限公司 | Double-guidance shift fork transmission box |
| CN103470846A (en) * | 2013-09-22 | 2013-12-25 | 浙江博恩自控阀门有限公司 | Singe-acting and double-acting integrated shifting fork pneumatic actuator assembly |
| DE102015205271A1 (en) * | 2015-03-24 | 2016-09-29 | Zf Friedrichshafen Ag | Piston-sleeve element for a fluid-actuated actuator, fluid-actuated actuator and transfer case |
| 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 |
| 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 |
| CN105952956A (en) * | 2016-07-11 | 2016-09-21 | 苏州博合雅工程材料科技有限公司 | Double-acting poking fork type pneumatic actuation mechanism |
| CN106051285A (en) * | 2016-07-11 | 2016-10-26 | 苏州博合雅工程材料科技有限公司 | Large-torque shifting fork type pneumatic actuator |
| CN206093153U (en) * | 2016-07-11 | 2017-04-12 | 苏州博合雅工程材料科技有限公司 | Big moment of torsion shifting fork type pneumatic actuator |
| CN206419534U (en) * | 2017-01-22 | 2017-08-18 | 康赛特阀门集团有限公司 | A kind of novel double-acting pneumatic actuator |
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| Publication number | Publication date |
|---|---|
| CN107588228A (en) | 2018-01-16 |
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