CN203906975U - Pneumatic actuator for valve - Google Patents
Pneumatic actuator for valve Download PDFInfo
- Publication number
- CN203906975U CN203906975U CN201420256659.9U CN201420256659U CN203906975U CN 203906975 U CN203906975 U CN 203906975U CN 201420256659 U CN201420256659 U CN 201420256659U CN 203906975 U CN203906975 U CN 203906975U
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- Prior art keywords
- spring
- piston
- shaft
- slide block
- pneumatic actuator
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Abstract
The utility model disclose a pneumatic actuator for a valve. The pneumatic actuator comprises a spring module, a drive module and a power module. The drive module is respectively connected with the spring module and the power module. The drive module comprises a shifting fork and a guide shaft. A slider is disposed on the guide shaft. The shifting fork is connected with the slider. The spring module comprises a spring seat and a spring shaft which is mounted on the spring seat in a matched manner. A first elastic part is disposed on the spring seat. A second elastic part is disposed on the outer side of the first elastic part. The spring shaft is connected with the slider. The power module comprises a piston and a piston shaft. The piston is connected to the piston shaft in a matched manner. The piston shaft is connected with the slider. A plurality of pull rods are mounted on the piston in a matched manner. By the arrangement, the pneumatic actuator of the valve has the advantages that flexibility and efficiency are increased, manufacturing cost is lowered, and the pneumatic actuator is compact in structure and safe and reliable to use.
Description
Technical field
The present invention relates to valve automatic field, particularly relate to a kind of valve used pneumatic actuator.
Background technique
Pneumatic actuator is the combining unit of valve automation control, its structure generally comprises cylinder block, carries out casing and spring cylinder body, piston in cylinder block is by being connected with spring cylinder intracoelomic cavity through the piston rod of carrying out casing, when shift fork, the output shaft that makes to carry out in casing that slide of the execution block in piston and piston rod produces positive and negative rotation, make that valve is corresponding opens, closes or regulate action.The outside pull bar design of tradition actuator more easily suffers the impact of Environmental Conditions, causes corrosion and damage prematurely, and device is caused to safety problem.Power plant module and the spring module of tradition final controlling element cannot exchange, the spring module of tradition final controlling element adopts single spring and without guide function, makes traditional final controlling element weight heavier, and volume is larger, the tradition final controlling element inner piece that easily makes in service damages, and produces very large noise.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of valve used pneumatic actuator, can improve flexibility and efficiency, reduces manufacture cost, and compact structure, realizes the automation controls such as invalid position open and close, maintenance and ratio adjusting.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is: a kind of valve used pneumatic actuator is provided, comprise: spring module, driver module and power plant module, described driver module is connected with power plant module with spring module respectively, described driver module comprises shift fork and the axis of guide, on the described axis of guide, be provided with slide block, described shift fork is connected with slide block, described spring module comprises spring seat and spring shaft, described spring shaft cooperation mounts elastically, on described spring seat, be provided with the first elastic component, described the first elastic component outside is provided with the second elastic component, described spring shaft is connected with slide block, described power plant module comprises piston and piston shaft, described piston is connected on piston shaft, described piston shaft is connected with slide block, on described piston, coordinate multiple pull bars are installed.
In a preferred embodiment of the present invention, described driver module also comprises drive case, and described shift fork, the axis of guide and slide block all coordinate to be located in drive case, is provided with switch screw rod and Limit screw in described drive case.
In a preferred embodiment of the present invention, on described slide block, be equipped with rotating shaft, described rotating shaft is connected with shift fork, and described slide block is provided with the first sphere bar and the second sphere bar, slide block is connected with piston shaft by the first sphere bar, is connected with spring shaft by the second sphere bar.
In a preferred embodiment of the present invention, on described shift fork, coordinate and be provided with shift fork thrust pad, on described slide block, snap close is installed, between described the first sphere bar and the second sphere and slide block, be provided with ball ring.
In a preferred embodiment of the present invention, described spring module also comprises spring strut, described spring seat the first elastic component and the second elastic component are all arranged in spring strut, and described spring shaft matches with spring strut and part passes spring strut, is provided with spring seat guide finger on described spring seat.
In a preferred embodiment of the present invention, described the first elastic component and the second elastic component are spring, are also provided with one-way valve on described spring strut.
In a preferred embodiment of the present invention, described power plant module comprises cylinder block, described multiple pull bar and piston are equipped with in casing, and described piston shaft matches with cylinder block and part passes cylinder block, on described piston, is equipped with guide ring.
In a preferred embodiment of the present invention, on described cylinder block, be connected with curved siphunculus, in described curved siphunculus, be provided with baffler.
The invention has the beneficial effects as follows: valve used pneumatic actuator of the present invention, can improve flexibility and efficiency, reduce manufacture cost, compact structure, realizes the automation controls such as invalid position open and close, maintenance and ratio adjusting.
Brief description of the drawings
In order to be illustrated more clearly in the technological scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 is the structural representation of valve used pneumatic actuator one preferred embodiment of the present invention;
Fig. 2 is the partial schematic diagram of valve used pneumatic actuator shown in Fig. 1;
Fig. 3 is the plan view of Fig. 2;
Fig. 4 is the left view of Fig. 2;
Fig. 5 is the partial schematic diagram of valve used pneumatic actuator shown in Fig. 1;
Fig. 6 is the partial schematic diagram of valve used pneumatic actuator shown in Fig. 1;
In accompanying drawing, the mark of each parts is as follows: 1, spring module, 2, driver module, 3, power plant module, 101, spring strut, 102, spring seat, 103, spring shaft, 104, the first elastic component, 105, the second elastic component, 106, one-way valve, 107, guide finger, 201, drive case, 202, shift fork, 203, the axis of guide, 204, slide block, 205, switch screw rod, 206, Limit screw, 207, rotating shaft, 208, the first sphere bar, 209, the second sphere bar, 210, shift fork thrust pad, 211, snap close, 212, ball ring, 301, cylinder block, 302 pistons, 303 piston shaft, 304, pull bar, 305, curved siphunculus, 306, baffler, 307, guide ring.
Embodiment
To the technological scheme in the embodiment of the present invention be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making all other embodiments that obtain under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, a kind of valve used pneumatic actuator, comprising: spring module 1, driver module 2 and power plant module 3, driver module is connected with power plant module with spring module respectively.
As Fig. 2 to Fig. 4, in addition, driver module 2 comprises drive case 201, shift fork 202 and the axis of guide 203, on the described axis of guide 203, be provided with slide block 204, shift fork 202 is connected with slide block 204, shift fork 202, the axis of guide 203 and slide block 204 all coordinate and are located in drive case 201, in drive case 201, be provided with switch screw rod 205 and Limit screw 206, on slide block 204, be equipped with rotating shaft 207, rotating shaft 207 is connected with shift fork 202, shift fork 202 is connected the outer sliding interior rotatable connection of employing aluminum bronze square set with rotating shaft 207, operate steadily reliable, rub little, long service life.Fork type rotation adopts self oiling bearing, reduces wearing and tearing, and transmission efficiency is high, and two key slot type shift fork frames can be installed and adjust according to site space.Slide block 204 is provided with the first sphere bar 208 and the second sphere bar 209, slide block 204 is connected with piston shaft 303 by the first sphere bar 208, be connected with spring shaft 103 by the second sphere bar 209, on shift fork 202, coordinate and be provided with shift fork thrust pad 210, snap close 211 is installed on slide block 205, between the first sphere bar 208 and the second sphere bar 209 and slide block 204, be provided with ball ring 212, 209 points, the first sphere bar 208 and the second sphere bar are arranged, thereby slide block 204 can discharge lateral force, spring shaft 103 and piston shaft 303 are without lateral deviation, the lateral force deviation of compensating piston axle 303 and spring shaft 103 pull bars, reduce driveshaft, the wearing and tearing of bearing and sealing.
As Fig. 5, in addition, spring module 1 comprises spring strut 101, spring seat 102 and spring shaft 103, spring shaft 103 cooperations are arranged on spring seat 102, on spring seat 102, be provided with the first elastic component 104, the first elastic component 104 outsides are provided with the second elastic component 105, spring shaft 103 is connected with slide block 204, the first elastic component 104 and the second elastic component 105 are all arranged in spring strut 101, spring shaft 103 matches with spring strut 101 and part passes spring strut 103, the first elastic component 104 and the second elastic component 105 are spring, on spring strut 101, be also provided with one-way valve 106, on spring seat 102, be provided with spring seat guide finger 107, spring seat guide finger ensures that spring operates steadily, reduce friction and noise, adopt double-spring structure, can be for different moment of torsion combination in any, and optimize central position.Dual spring is interiorly to design to pressurized, be designed with traditional export-oriented compression spring and prevent spring distortion, without spring-force driven dual on the end cap in spring module outside and the less feature of actuator's vibration damping, spring reset module adopts dual spring locking, and spring strut 101 integral full-closed welding designs ensure safety.
As Fig. 6, in addition, power plant module 3 comprises cylinder block 301, piston 302 and piston shaft 303, multiple pull bars 304 and piston 302 are equipped with in cylinder block 301, piston 302 is connected on piston shaft 303, piston shaft 303 is connected with slide block 204, on piston 302, coordinate multiple pull bars 304 are installed, piston shaft 303 matches with cylinder block 301 and part passes cylinder block 301, on cylinder block 301, be connected with curved siphunculus 305, in curved siphunculus 305, be provided with baffler 306, on piston 302, be equipped with guide ring, the weight of piston 302 bodies is offseted by multiple pull bars 304, avoid piston 302 and cylinder block 301 to rub, for moving in power plant module, piston does two guiding, prevent the galling between piston and cylinder wall, and on pull bar, add replaceable nylon bearing, the distortion that compensation various factors causes, and reduce the wearing and tearing of piston seal, strengthen efficiency of movement.
Valve used pneumatic actuator power plant module of the present invention and spring module can exchange easily, easily change over two patterns from one action pattern, and the pattern of gain and loss gas safety can be changed fast.Driver module axle adopts flexible sides to Compensation Design, and piston rod is connected with slide block, and the lateral force deviation of compensating piston bar and spring shaft reduces the wearing and tearing of driveshaft, bearing and sealing, reduces transmission efficiency.Spring reset module adopts dual spring locking mode, and spring strut integral full-closed welding design ensures Security.The Functional Design that can not produce spring tension in the time of dismounting spring module, ensures the Security in the time that spring is dismantled.Spring must be discharged into home, the spring module of just can trying to unload.
Be different from prior art, valve used pneumatic actuator of the present invention, can be arranged on the valve of ball valve, butterfly valve and 90 ° of rotation classes, realizes the automation controls such as invalid position open and close, maintenance and ratio adjusting, can improve flexibility and efficiency, reduce manufacture cost.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. a valve used pneumatic actuator, it is characterized in that, comprise: spring module, driver module and power plant module, described driver module is connected with power plant module with spring module respectively, described driver module comprises shift fork and the axis of guide, on the described axis of guide, be provided with slide block, described shift fork is connected with slide block, described spring module comprises spring seat and spring shaft, described spring shaft cooperation mounts elastically, on described spring seat, be provided with the first elastic component, described the first elastic component outside is provided with the second elastic component, described spring shaft is connected with slide block, described power plant module comprises piston and piston shaft, described piston is connected on piston shaft, described piston shaft is connected with slide block, on described piston, coordinate multiple pull bars are installed.
2. valve used pneumatic actuator according to claim 1, is characterized in that, described driver module also comprises drive case, and described shift fork, the axis of guide and slide block all coordinate to be located in drive case, is provided with switch screw rod and Limit screw in described drive case.
3. valve used pneumatic actuator according to claim 2, it is characterized in that, on described slide block, be equipped with rotating shaft, described rotating shaft is connected with shift fork, described slide block is provided with the first sphere bar and the second sphere bar, slide block is connected with piston shaft by the first sphere bar, is connected with spring shaft by the second sphere bar.
4. valve used pneumatic actuator according to claim 3, is characterized in that, on described shift fork, coordinates and is provided with shift fork thrust pad, on described slide block, snap close is installed, and between described the first sphere bar and the second sphere and slide block, is provided with ball ring.
5. valve used pneumatic actuator according to claim 1, it is characterized in that, described spring module also comprises spring strut, described the first elastic component and the second elastic component are all arranged in spring strut, described spring shaft matches with spring strut and part passes spring strut, is provided with spring seat guide finger on described spring seat.
6. valve used pneumatic actuator according to claim 5, is characterized in that, described the first elastic component and the second elastic component are spring, is also provided with one-way valve on described spring strut.
7. valve used pneumatic actuator according to claim 1, it is characterized in that, described power plant module comprises cylinder block, described multiple pull bar and piston are equipped with in cylinder block, described piston shaft matches with cylinder block and part passes cylinder block, on described piston, is equipped with guide ring.
8. valve used pneumatic actuator according to claim 7, is characterized in that, is connected with curved siphunculus on described cylinder block, in described curved siphunculus, is provided with baffler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420256659.9U CN203906975U (en) | 2014-05-20 | 2014-05-20 | Pneumatic actuator for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420256659.9U CN203906975U (en) | 2014-05-20 | 2014-05-20 | Pneumatic actuator for valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906975U true CN203906975U (en) | 2014-10-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420256659.9U Expired - Fee Related CN203906975U (en) | 2014-05-20 | 2014-05-20 | Pneumatic actuator for valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906975U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994264A (en) * | 2014-05-20 | 2014-08-20 | 无锡市捷诺自控设备有限公司 | Valve 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 |
| 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 |
| CN105952955A (en) * | 2016-07-11 | 2016-09-21 | 苏州博合雅工程材料科技有限公司 | Single-acting poking fork type pneumatic actuator |
| WO2018036496A1 (en) * | 2016-08-25 | 2018-03-01 | 成都迈可森流体控制设备有限公司 | Valve actuator based on gas-fluid composite spring |
-
2014
- 2014-05-20 CN CN201420256659.9U patent/CN203906975U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994264A (en) * | 2014-05-20 | 2014-08-20 | 无锡市捷诺自控设备有限公司 | Valve 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 |
| 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 |
| CN105952955A (en) * | 2016-07-11 | 2016-09-21 | 苏州博合雅工程材料科技有限公司 | Single-acting poking fork type pneumatic actuator |
| WO2018036496A1 (en) * | 2016-08-25 | 2018-03-01 | 成都迈可森流体控制设备有限公司 | Valve actuator based on gas-fluid composite spring |
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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: 20141029 Termination date: 20170520 |