CN202852150U - Bidirectional shifting fork type actuator - Google Patents
Bidirectional shifting fork type actuator Download PDFInfo
- Publication number
- CN202852150U CN202852150U CN 201220549679 CN201220549679U CN202852150U CN 202852150 U CN202852150 U CN 202852150U CN 201220549679 CN201220549679 CN 201220549679 CN 201220549679 U CN201220549679 U CN 201220549679U CN 202852150 U CN202852150 U CN 202852150U
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- China
- Prior art keywords
- shifting fork
- end cap
- type actuator
- shifting
- piston
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- Expired - Fee Related
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Abstract
The utility model discloses a bidirectional shifting fork type actuator which comprises a box body, the two sides of the box body are correspondingly provided with cylinder bodies, two end covers matching with the cylinder bodies and the extended end of a piston rod penetrating the box body are arranged inside the cylinder bodies, and the extended end is fixed on the piston in a matching mode. The bidirectional shifting fork type actuator is characterized in that the box body is provided with a fork shifting device, the fork shifting device comprises a shifting fork, a spindle and a fork shifting shaft pin, the shifting fork is movably connected with the piston rod through the fork shifting shaft pin; each of the end covers is provided with a buffer device and a first air channel, and a second air channel is arranged on the connecting part between the cylinder body and the box body. By arranging the buffer devices on both ends, the bidirectional shifting fork type actuator can bidirectionally control a valve. A non-return valve can increase the inflation speed of the original position, and the fast-speed impact can be avoided when the actuator closes.
Description
Technical field
The utility model relates to a kind of pneumatic actuator, particularly two-way shifting fork type actuator.
Background technique
Pneumatic actuator is valve opening and the control actuator that closes, its general structure comprises some accessories of cylinder body, casing, piston and piston rod, mainly be to slide switch with movable valve by the cooperation of piston and piston, these final controlling element needing to occur a large amount of gas to enter, the loss of gas is large, utilization is not high, easily leak, open and close inaccuracy, use the large life-span of impact relatively also not long.
The model utility content
The purpose of this utility model is to provide a kind of Leakage prevention, fast two-way shifting fork type actuator of response time in order to solve above-mentioned the deficiencies in the prior art.
To achieve these goals, the two-way shifting fork type actuator that the utility model is designed, comprise casing, the corresponding both sides of casing are fixed with cylinder body, two end caps that match with cylinder body and place in the cylinder body through its external part of piston rod of casing, external part and be fixed with piston, it is characterized in that: described casing is provided with shifting fork device, shifting fork device comprises shift fork, rotating shaft and shift fork pivot pin, shift fork is flexibly connected by shift fork pivot pin and piston rod, described each end cap is provided with damping device and the first air flue, and the joint of cylinder body and casing is provided with the second air flue.
Preferably, damping device comprises throttle valve, lock screw, buffer plunger and buffer chamber, buffer plunger one end is fixed on the piston, and be the same level position with piston rod, the hollow cavity that the other end is positioned at the end cap middle part is movable cooperation, throttle valve is fixed on the end cap, and lock screw is between the bottom and throttle valve of end cap, and one-way valve, throttle valve consist of the passage that communicates by air flue with buffer chamber.
Preferably, on the described end cap stop screw is housed, stop screw passes end cap and buffer plunger is inconsistent.
Preferably, damping device also comprises one-way valve, and one-way valve is positioned at the hollow cavity opposite side at end cap middle part with respect to throttle valve, and one-way valve communicates with buffer chamber.
The two-way shifting fork type actuator that the utility model obtains, two ends all are provided with damping device, can two-way motion come control valve, and one-way valve can improve the aeration speed of initial position, can avoid the impact of fast speed when final controlling element is closed.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the structural representation that the two-way shifting fork type actuator of one-way valve is housed.
Among the figure: casing 1, cylinder body 2, end cap 3, piston rod 4, piston 5, shifting fork device 6, damping device 7, shift fork 11, rotating shaft 10, shift fork pivot pin 12, stop screw 22, throttle valve 23, lock screw 24, buffer plunger 21, buffer chamber 20, one-way valve 25, the first air flue 31,32, the second air flue 101,102.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Embodiment 1:
Such as Fig. 1, shown in Figure 2, the two-way shifting fork type actuator that the present embodiment provides, comprise casing 1, the corresponding both sides of casing are fixed with cylinder body 2, two end caps 3 that match with cylinder body and place in the cylinder body through piston rod 4 its external parts of casing, external part and be fixed with piston 5, described casing is provided with shifting fork device 6, shifting fork device 6 comprises shift fork 11, rotating shaft 10 and shift fork pivot pin 12, shift fork 11 is flexibly connected by shift fork pivot pin 12 and piston rod 4, described each end cap 3 is provided with damping device 7 and the first air flue 31,32, cylinder body 2 is provided with the second air flue 101 with the joint of casing 1,102.
Damping device comprises throttle valve 23, lock screw 24, buffer plunger 21 and buffer chamber 20, buffer plunger 21 1 ends are fixed on the piston 5, and be the same level position with piston rod 4, the hollow cavity that the other end is positioned at the end cap middle part is movable cooperation, throttle valve 23 is fixed on the lower end of end cap, lock screw 24 is between the bottom and throttle valve 23 of end cap, and throttle valve consists of the passage that communicates by air flue with buffer chamber.
Stop screw 22 is housed on the described end cap, and it is inconsistent with buffer plunger 21 that stop screw 22 passes end cap 3.
Further describe for device of the present utility model: when source of the gas enters cylinder from the valve of the first air flue 31 of two cylinders, the second air flue 102, the gas push piston is to left movement, gas in the chamber is discharged through the first air flue 32, the second air flue 101, piston rod 4 is connected with piston 5 and moves simultaneously, shift fork pivot pin 12 on the piston rod 4 drives shift fork 11, shift fork 11 is connected with rotating shaft 10, opens valve thereby rotating shaft 10 is rotated counterclockwise.Piston end motion to the right approximately omnidistance 90% the time, slow down the piston motion speed by damping device 7, thereby slow down the final switch speed of valve, realized cushioning effect.
Adopt stop screw 22 adjusting actuator strokes, make its can butterfly valve be closed to 75 ° adjustable;
Embodiment 2:
Shown in Figure 3, identical with structure with above-described embodiment 1 described technology, the present embodiment refers to filling an one-way valve 25 in damping device, one-way valve 25 is positioned at the hollow cavity opposite side at end cap middle part with respect to throttle valve 23, one-way valve 25 communicates with buffer chamber 20, install one-way valve 25 additional in cylinder head, further improve the aeration speed of initial position, improved the utilization to air inlet.
The percussion that valve and final controlling element itself is produced for reducing the final controlling element high-speed motion, final controlling element arranges damping device 7, when piston 5 moves right at a high speed, the air in the right chamber of piston through cylinder cap bumper post consent and porting discharged to atmosphere.When in a single day the cylinder piston throw of lever enters terminal end cap endoporus chamber, delayed throttle valve 23 discharged to atmosphere.Because throttle valve 23 aisle spares are less, the air backpressure rising in the annular cavity forms the stroke air cushion, forces piston 5 to slow down, and stops at last.
Claims (4)
1. two-way shifting fork type actuator, comprise casing (1), the corresponding both sides of casing are fixed with cylinder body (2), two end caps (3) that match with cylinder body and place in the cylinder body through its external part of piston rod (4) of casing, external part and be fixed with piston (5), it is characterized in that: described casing (1) is provided with shifting fork device (6), shifting fork device (6) comprises shift fork (11), rotating shaft (10) and shift fork pivot pin (12), shift fork (11) is flexibly connected by shift fork pivot pin (12) and piston rod (4), described each end cap (3) is provided with damping device (7) and the first air flue (31,32), the joint of cylinder body and casing is provided with the second air flue (101,102).
2. two-way shifting fork type actuator according to claim 1, it is characterized in that: damping device (7) comprises throttle valve (23), lock screw (24), buffer plunger (21) and buffer chamber (20), buffer plunger (21) one ends are fixed on the piston (5), and be the same level position with piston rod (4), the hollow cavity that the other end is positioned at the end cap middle part is movable cooperation, throttle valve (23) is fixed on the end cap, lock screw (24) is positioned between the bottom and throttle valve (23) of end cap, one-way valve (25), throttle valve (23) consists of the passage that communicates by air flue with buffer chamber (20).
3. two-way shifting fork type actuator according to claim 1, it is characterized in that: stop screw 22 is housed on the described end cap, and stop screw 22 passes end cap and buffer plunger is inconsistent.
4. two-way shifting fork type actuator according to claim 2, it is characterized in that: damping device (7) also comprises one-way valve (25), one-way valve (25) is positioned at the hollow cavity opposite side at end cap middle part with respect to throttle valve (23), one-way valve (25) communicates with buffer chamber (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220549679 CN202852150U (en) | 2012-10-15 | 2012-10-15 | Bidirectional shifting fork type actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220549679 CN202852150U (en) | 2012-10-15 | 2012-10-15 | Bidirectional shifting fork type actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202852150U true CN202852150U (en) | 2013-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220549679 Expired - Fee Related CN202852150U (en) | 2012-10-15 | 2012-10-15 | Bidirectional shifting fork type actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202852150U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN106499863A (en) * | 2016-12-04 | 2017-03-15 | 重庆永富电线电缆有限公司 | Pneumatic actuator structure for cable production |
| CN110985456A (en) * | 2019-12-31 | 2020-04-10 | 中核武汉核电运行技术股份有限公司 | Gas-liquid combined rotary motion structure |
| CN112555220A (en) * | 2019-09-10 | 2021-03-26 | 山东奥博控制技术有限公司 | Annular fixed throttle gap buffer device for hydraulic pressure |
-
2012
- 2012-10-15 CN CN 201220549679 patent/CN202852150U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103470846B (en) * | 2013-09-22 | 2016-01-20 | 浙江博恩自控阀门有限公司 | Single double-action common type shift fork pneumatic actuator assembly |
| 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 |
| CN104565508B (en) * | 2014-12-22 | 2017-02-01 | 上海大成仪表有限责任公司 | Transverse-mounting type pneumatic piston executing mechanism of angular travel adjusting valve |
| CN106499863A (en) * | 2016-12-04 | 2017-03-15 | 重庆永富电线电缆有限公司 | Pneumatic actuator structure for cable production |
| CN112555220A (en) * | 2019-09-10 | 2021-03-26 | 山东奥博控制技术有限公司 | Annular fixed throttle gap buffer device for hydraulic pressure |
| CN110985456A (en) * | 2019-12-31 | 2020-04-10 | 中核武汉核电运行技术股份有限公司 | Gas-liquid combined rotary motion structure |
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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: 20130403 Termination date: 20151015 |
|
| EXPY | Termination of patent right or utility model |