CN203836349U - Novel pneumatic diaphragm type angular travel actuator - Google Patents
Novel pneumatic diaphragm type angular travel actuator Download PDFInfo
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- CN203836349U CN203836349U CN201420194330.4U CN201420194330U CN203836349U CN 203836349 U CN203836349 U CN 203836349U CN 201420194330 U CN201420194330 U CN 201420194330U CN 203836349 U CN203836349 U CN 203836349U
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- cavity
- push rod
- novel pneumatic
- diaphragm type
- diaphragm
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Abstract
The utility model discloses a novel pneumatic diaphragm type angular travel actuator which comprises a cavity and an output box arranged on one side of the cavity. A diaphragm is arranged in the cavity, the cavity is separated into a left cavity and a right cavity through the diaphragm, an air inlet is arranged in the cavity of the left cavity, a spring is arranged between a top plate of the diaphragm and the cavity wall of the right cavity, one end of the push rod is fixed with the top plate, and the other end of the push rod stretches out of the right cavity to be fixedly connected with a sliding block arranged in the output box. A pin roll is arranged on the sliding block, the pin roll is connected with one end of a poking plate in the output box in a sliding mode, a rotating shaft is arranged in the middle of the poking plate, and an output shaft hole coaxial with the rotating shaft is formed in the lower end face of the rotating shaft. The actuator effectively solves the problem in the prior art that an angular piston type actuator is large in adjusting error and severe in dead zone lag when used for adjusting the openness of a rotating valve. The novel pneumatic diaphragm type angular travel actuator is simple in structure, high in adjusting accuracy and less in dead zone lag and has high practical value.
Description
Technical field
The utility model relates to a kind of pneumatic actuator of valve opening and closing control, particularly a kind of novel pneumatic diaphragm type angle stroke actuators for ball valve and butterfly valve isogonism stroke class valve.
Background technique
Valve has very widely application in industries such as metallurgy, the energy, chemical industry, oil, gasifications, and makes valve core rotation several angle and reach and regulate or the valve such as the ball valve of switch medium negotiability, butterfly valve, stop valve is all realized by electronic or pneumatic angle stroke actuators.The angle stroke piston formula final controlling element of prior art exists while being used for regulating rotation class valve opening that regulating error is large, dead-zone lag phenomenon is serious etc. and asks him, has affected control accuracy.Open day is on January 16th, 2013, publication number is that the patent document of CN102878344 A discloses a kind of pneumatic actuator for angular travel valve, comprise angular travel valve valve rod, cylinder block, piston and the resetting means for piston reset, on described cylinder block, be formed with 2～3 chambers separate and that be circle distribution, each chamber is communicated with the gas-entered passageway and the exhaust passage that are respectively used to intake and exhaust; Described piston is made up of a piston sleeve and 2～3 piston sheets, piston sleeve is fixed on valve rod by key Placement suit, piston sheet circumference uniform distribution is in piston sleeve outside, the quantity of piston sheet has identical with described chamber quantity, each piston sheet lays respectively in the chamber of a correspondence, piston sheet can promote it by pressurized air and rotate 0～90 ° in chamber, the wind spring formation that described resetting means resets for making piston rotation.But the pneumatic actuator output torque of this angular travel valve is less and requirement on machining accuracy is high, and cost of production is higher.
Model utility content
The utility model provides the novel pneumatic diaphragm type angle that a kind of degree of regulation is high, dead-zone lag is few stroke actuators for solving the problems such as the regulating error existing when the angle stroke piston formula final controlling element of prior art rotates class valve opening for regulating is large, dead-zone lag phenomenon is serious.
The utility model for the concrete technological scheme that reaches above-mentioned technical purpose and adopt is: a kind of novel pneumatic diaphragm type angle stroke actuators, comprise cavity and be arranged on the delivery casing of cavity one side, in described cavity, be provided with diaphragm, cavity is divided into left cavity and right cavity by described diaphragm, the chamber wall of described left cavity is provided with suction port, diaphragm is provided with top board towards a side of right cavity, between the chamber wall of top board and right cavity, be provided with spring, in right cavity, be provided with push rod, one end and the top board of push rod are fixed, the other end of push rod stretches out right cavity and is fixedly connected with the slide block being arranged in delivery casing, in delivery casing, be provided with fork plate, the middle part of fork plate is provided with rotating shaft, and the base plate of delivery casing is extended in the lower end of rotating shaft, and the lower end surface of rotating shaft is provided with the output shaft hole coaxial with rotating shaft, slide block is provided with bearing pin, and one end of fork plate is provided with waist shaped hole, and bearing pin fits in the waist shaped hole of fork plate slidably, and the other end of fork plate is provided with spacing inclined-plane, and delivery casing is provided with the Limit screw corresponding with spacing inclined-plane.In the utility model, on suction port, connect and control source of the gas, just can control the opening angle of valve, when suction port is left in cavity when gas injection, diaphragm by top board drive push rod to the right cavity side move, spring is compressed, push rod promotes slide block and moves to the right, slide block drives fork plate to rotate around the axis and then drives the valve rod being arranged in output shaft hole to rotate, thereby realize the unlatching of valve, valve opening is during to desired location, the spring-back force balance of the gas pressure in left cavity and spring, and the opening angle of valve remains unchanged.Like this, control the accurately aperture of control valve of size of suction pressure.On the contrary, in the time that the air pressure in left cavity reduces, the elastic force of spring by top board by pressing diaphragm cavity one side left, push rod left cavity side moves, push rod pulls slide block to move to the left, slide block drives fork plate to rotate backward around the shaft and then drive the valve rod being arranged in output shaft hole to rotate backward, thereby realize closing of valve, like this, in the utility model, the opening angle of valve is only relevant to the suction pressure of left cavity side, the regulating error that the angle stroke piston formula final controlling element that has solved prior art exists when regulating rotation class valve opening is large, the problems such as dead-zone lag phenomenon is serious.And the spacing inclined-plane of the other end of fork plate coordinates and can limit the rotation angle of fork plate and then the opening angle of control valve with Limit screw corresponding on delivery casing.
As preferably, the fixing one end of push rod and slide block is extended with the marker post that can stretch out delivery casing, and marker post is provided with output angle indicative mark.The marker post length of stretching out delivery casing can show the displacement distance of push rod, thereby indicates the opening angle of corresponding valve, conveniently the working state of valve is judged and controls.
As preferably, push rod one side in delivery casing is provided with the guide rod parallel with push rod, and slide block is provided with the pilot hole with guide rod adaptation, and slide block is set on guide rod slidably by pilot hole.When guide rod can anti-throw-out lever moves, there is skew, thereby improve control accuracy.
As preferably, top board central authorities are provided with attachment post, and push rod is threaded with attachment post, and diaphragm is provided with pressing plate towards a side of left cavity.
As preferably, left cavity and right cavity are all round peviform, its opening is provided with outward flanging, left cavity is relative with right cavity hatch and be connected and fixed formation cavity by the fixing bolt being arranged on flanging, described diaphragm is rounded, and the outer periphery of diaphragm is folded between left cavity and the flanging of right cavity.
As preferably, fork plate is two, and two fork plates be arranged in parallel up and down, and upper and lower two fork plates are connected by the rotating shaft of hierarchic structure; Described spacing inclined-plane is two, is separately positioned on the terminal part of upper and lower fork plate away from slide block one side, and the angle between described spacing inclined-plane and fork plate length direction is 45 degree, and the angle between two spacing inclined-planes is 90 degree.Angle between two spacing inclined-planes is that the structure of 90 degree is 0-90 degree corresponding to the opening angle of valve.
As preferably, the casing of delivery casing is provided with threaded sleeve, and Limit screw is screwed onto on threaded sleeve, between Limit screw and threaded sleeve, is provided with fastening screw nut.
As preferably, above the casing of delivery casing, be provided with positioning work piece, casing below is provided with the valve fixing seat for connecting valve.Valve fixing seat is for being fixed on valve by the utility model.
The beneficial effects of the utility model are: the problem that regulating error is large, dead-zone lag phenomenon is serious that the angle stroke piston formula final controlling element that it has solved prior art effectively exists when regulating rotation class valve opening, the utility model is simple in structure, degree of regulation is high, dead-zone lag is few, has very high use value.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the utility model novel pneumatic diaphragm type angle stroke actuators;
Fig. 2 is a kind of structural representation that the utility model novel pneumatic diaphragm type angle stroke actuators is used state.
In figure: 1. cavity, 2. top board, 3. attachment post, 4. suction port, 5. left cavity, 6. diaphragm, 7. right cavity, 8. spring, 9. slide block, 10. bearing pin, 11. guide rods, 12. marker posts, 13. delivery casings, 14. output shaft holes, 15. rotating shafts, 16. spacing inclined-planes, 17. Limit screws, 18. fork plates, 19. threaded sleeves, 20. push rods, 21. fixing bolts, 22. positioning work pieces, 23. fixed bases, 24. valve rods, 25. valves.
Embodiment
Below by embodiment, and by reference to the accompanying drawings the embodiment of technical solutions of the utility model is further described.
Embodiment 1
In embodiment 1 as shown in Figure 1, a kind of novel pneumatic diaphragm type angle stroke actuators, comprise cavity and be fixedly connected on the delivery casing of cavity one side, in described cavity 1, be provided with diaphragm 6, cavity is divided into left cavity 5 and right cavity 7 by described diaphragm, left cavity and right cavity are all round peviform, its opening is provided with outward flanging, left cavity is relative with right cavity hatch and be connected and fixed formation cavity by the fixing bolt 21 being arranged on flanging, described diaphragm is rounded, and the outer periphery of diaphragm is folded between left cavity and the flanging of right cavity.The chamber wall of described left cavity is provided with suction port 4, diaphragm is provided with pressing plate towards a side of left cavity, diaphragm is provided with top board 2 towards a side of right cavity, between the chamber wall of top board and right cavity, be provided with spring 8, in right cavity, be provided with push rod 20, one end of push rod is threaded with the attachment post 3 that top board central authorities arrange; The other end of push rod is fixedly connected with the slide block 9 being arranged in delivery casing 13 through the chamber wall of right cavity and the tank wall of delivery casing; Push rod one side in delivery casing is provided with the guide rod parallel with push rod 11, and slide block is provided with the pilot hole with guide rod adaptation, and slide block is set on guide rod slidably by pilot hole.The fixing one end of push rod and slide block is extended with the marker post 12 that can stretch out delivery casing, and marker post is provided with output angle indicative mark.
In delivery casing, be provided with the fork plate 18 of strip, described fork plate is two, two fork plates be arranged in parallel up and down, the middle part of fork plate is provided with rotating shaft 15, upper and lower two fork plates are connected by the rotating shaft of hierarchic structure, the base plate of delivery casing is extended in the lower end of rotating shaft, and the lower end surface of rotating shaft is provided with the output shaft hole coaxial with rotating shaft 14, on slide block, be equipped with bearing pin 10, one end of fork plate is provided with waist shaped hole, bearing pin fits in the waist shaped hole of fork plate slidably, the other end of fork plate is provided with spacing inclined-plane 16, described spacing inclined-plane is two, be separately positioned on the terminal part of upper and lower fork plate away from slide block one side, angle between described spacing inclined-plane and fork plate length direction is 45 degree, angle between two spacing inclined-planes is 90 degree, the casing of delivery casing is provided with threaded sleeve 19, on threaded sleeve, be bolted with the Limit screw corresponding with spacing inclined-plane 17, between Limit screw and threaded sleeve, be provided with fastening screw nut.The casing top of delivery casing is provided with positioning work piece 22, and casing below is provided with the valve fixing seat 23 for connecting valve.
When novel pneumatic diaphragm type of the present utility model angle stroke actuators is used, valve 25 is connected and fixed with valve fixing seat 23, valve rod 24(dwang on valve) (see figure 2) in the output shaft hole of insertion angle, upper end stroke actuators, on suction port, connect and control source of the gas, just can control the opening angle of valve, when suction port is left in cavity when gas injection, diaphragm by top board drive push rod to the right cavity side move, spring is compressed, push rod promotes slide block and moves to the right, slide block drives fork plate to rotate around the axis and then drives the valve rod being arranged in output shaft hole to rotate, thereby realize the unlatching of valve, valve opening is during to desired location, the spring-back force balance of the gas pressure in left cavity and spring, the opening angle of valve remains unchanged.Like this, control the accurately aperture of control valve of size of suction pressure.And in the time that the air pressure in left cavity reduces, the elastic force of spring by top board by pressing diaphragm cavity one side left, push rod left cavity side moves, push rod pulls slide block to move to the left, slide block drives fork plate to rotate backward around the shaft and then drive the valve rod being arranged in output shaft hole to rotate backward, thereby realize closing of valve, like this, in the utility model, the opening angle of valve is only relevant to the suction pressure of left cavity side, the regulating error that the angle stroke piston formula final controlling element that has solved prior art exists when regulating rotation class valve opening is large, the problems such as dead-zone lag phenomenon is serious.Can know and stretch out on the marker post of delivery casing the opening angle that shows valve, Limit screw can regulate the scope of opening angle.
In addition to the implementation; in claims of the present utility model and the disclosed scope of specification; technical characteristics of the present utility model or technical data can reselect and combine; thereby form new embodiment; it is attainable without carrying out creative work that these are all those skilled in the art, and the embodiment that therefore these the utility model are not described in detail also should be considered as specific embodiment of the utility model and within protection domain of the present utility model.
Claims (8)
1. a novel pneumatic diaphragm type angle stroke actuators, comprise cavity and be arranged on the delivery casing of cavity one side, it is characterized in that: in described cavity (1), be provided with diaphragm (6), cavity is divided into left cavity (5) and right cavity (7) by described diaphragm, the chamber wall of described left cavity is provided with suction port (4), diaphragm is provided with top board (2) towards a side of right cavity, between the chamber wall of top board and right cavity, be provided with spring (8), in right cavity, be provided with push rod (20), one end and the top board of push rod are fixed, the other end of push rod stretches out right cavity and is fixedly connected with the slide block (9) being arranged in delivery casing (13), in delivery casing, be provided with fork plate (18), the middle part of fork plate is provided with rotating shaft (15), and the base plate of delivery casing is extended in the lower end of rotating shaft, and the lower end surface of rotating shaft is provided with the output shaft hole coaxial with rotating shaft (14), slide block is provided with bearing pin (10), and one end of fork plate is provided with waist shaped hole, and bearing pin fits in the waist shaped hole of fork plate slidably, and the other end of fork plate is provided with spacing inclined-plane (16), and delivery casing is provided with the Limit screw corresponding with spacing inclined-plane (17).
2. novel pneumatic diaphragm type according to claim 1 angle stroke actuators, is characterized in that: the fixing one end of described push rod and slide block is extended with the marker post (12) that can stretch out delivery casing, and marker post is provided with output angle indicative mark.
3. novel pneumatic diaphragm type according to claim 1 angle stroke actuators, it is characterized in that: push rod one side in described delivery casing is provided with the guide rod parallel with push rod (11), slide block is provided with the pilot hole with guide rod adaptation, and slide block is set on guide rod slidably by pilot hole.
4. according to the novel pneumatic diaphragm type angle stroke actuators described in claim l, it is characterized in that: described top board central authorities are provided with attachment post (3), and push rod is threaded with attachment post, and diaphragm is provided with pressing plate towards a side of left cavity.
5. novel pneumatic diaphragm type according to claim 1 angle stroke actuators, it is characterized in that: described left cavity and right cavity are all round peviform, its opening is provided with outward flanging, left cavity is relative with right cavity hatch and be connected and fixed formation cavity by the fixing bolt (21) being arranged on flanging, described diaphragm is rounded, and the outer periphery of diaphragm is folded between left cavity and the flanging of right cavity.
6. novel pneumatic diaphragm type according to claim 1 angle stroke actuators, is characterized in that: described fork plate is two, two fork plates be arranged in parallel up and down, and upper and lower two fork plates are connected by the rotating shaft of hierarchic structure; Described spacing inclined-plane is two, is separately positioned on the terminal part of upper and lower fork plate away from slide block one side, and the angle between described spacing inclined-plane and fork plate length direction is 45 degree, and the angle between two spacing inclined-planes is 90 degree.
7. according to the novel pneumatic diaphragm type angle stroke actuators described in claim 1-6 any one, it is characterized in that: the casing of delivery casing is provided with threaded sleeve (19), Limit screw is screwed onto on threaded sleeve, between Limit screw and threaded sleeve, is provided with fastening screw nut.
8. according to the novel pneumatic diaphragm type angle stroke actuators described in claim 1-6 any one, it is characterized in that: the casing top of delivery casing is provided with positioning work piece (22), and casing below is provided with the valve fixing seat (23) for connecting valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420194330.4U CN203836349U (en) | 2014-04-21 | 2014-04-21 | Novel pneumatic diaphragm type angular travel actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420194330.4U CN203836349U (en) | 2014-04-21 | 2014-04-21 | Novel pneumatic diaphragm type angular travel actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203836349U true CN203836349U (en) | 2014-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420194330.4U Expired - Fee Related CN203836349U (en) | 2014-04-21 | 2014-04-21 | Novel pneumatic diaphragm type angular travel actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203836349U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387265A (en) * | 2015-12-07 | 2016-03-09 | 中国船舶重工集团公司第七一九研究所 | Planetary gear transmission mechanism capable of achieving mutual noninterference driving |
| CN106438563A (en) * | 2016-11-25 | 2017-02-22 | 杭州德联自动化设备有限公司 | Slidable large torque angle travel cylinder |
| CN106704297A (en) * | 2016-12-29 | 2017-05-24 | 无锡缔友自动化设备有限公司 | Pneumatic actuator |
| CN109296815A (en) * | 2018-11-16 | 2019-02-01 | 福斯流体控制（苏州）有限公司 | Fork type pneumatic actuator |
-
2014
- 2014-04-21 CN CN201420194330.4U patent/CN203836349U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387265A (en) * | 2015-12-07 | 2016-03-09 | 中国船舶重工集团公司第七一九研究所 | Planetary gear transmission mechanism capable of achieving mutual noninterference driving |
| CN106438563A (en) * | 2016-11-25 | 2017-02-22 | 杭州德联自动化设备有限公司 | Slidable large torque angle travel cylinder |
| CN106704297A (en) * | 2016-12-29 | 2017-05-24 | 无锡缔友自动化设备有限公司 | Pneumatic actuator |
| CN106704297B (en) * | 2016-12-29 | 2018-07-13 | 无锡缔友自动化设备有限公司 | Pneumatic actuator |
| CN109296815A (en) * | 2018-11-16 | 2019-02-01 | 福斯流体控制（苏州）有限公司 | Fork type pneumatic actuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20210421 |