CN217381791U - High-flow pneumatic pressure proportional control servo valve - Google Patents
High-flow pneumatic pressure proportional control servo valve Download PDFInfo
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- CN217381791U CN217381791U CN202220499668.5U CN202220499668U CN217381791U CN 217381791 U CN217381791 U CN 217381791U CN 202220499668 U CN202220499668 U CN 202220499668U CN 217381791 U CN217381791 U CN 217381791U
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- exhaust hole
- plate
- servo valve
- proportional control
- valve body
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- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a large-traffic pneumatic pressure proportional control servo valve, which comprises a valve body, be provided with the inner chamber in the valve body, the air inlet has been seted up on the inner chamber top, the intracavity is provided with the fly leaf, fly leaf bottom central fixed mounting has the depression bar, the ejector pin is installed perpendicularly to the depression bar below, ejector pin bottom fixed mounting is on receiving the lamina, receive lamina bottom fixed mounting to have the rebound spare, first exhaust hole and second exhaust hole have been seted up respectively from top to bottom on the valve body lateral wall, integrated into one piece has first sealed plate and second sealed plate on the ejector pin. The utility model discloses large-traffic pneumatic pressure proportional control servo valve, it is through the rebound spare that is located the bottom, and control pneumatic balance has just seted up first exhaust hole and second exhaust hole, can realize quick adjustment to the unbalanced condition of air current, and response speed is faster, for traditional servo valve, has simple structure, and the constant voltage is servo effectual, sets up the advantage that pressure accuracy is high.
Description
Technical Field
The utility model relates to a servovalve technical field specifically is large-traffic pneumatic pressure proportional control servovalve.
Background
The large-flow pneumatic pressure proportional control servo valves at home and abroad are roughly divided into slide valve type, nozzle baffle type, jet type and pressure proportional control servo valves according to the control modes, and the pressure proportional control servo valves consume certain compressed air after reaching a stable state. The other type of pressure proportional control servo valve controls an externally controlled diaphragm type pneumatic control precise pressure control valve through a small-flow E-P valve in a pilot mode, a pressure transmitter and a pressure stabilizing air chamber are arranged at the downstream of an output port of the pneumatic control precise pressure control valve, and an external 'measuring and controlling electric loop' receives an electric signal (converted from a pneumatic signal received by the pressure transmitter) output by the pressure transmitter and then compares the electric signal with a preset pressure signal value to send a signal again to drive the E-P valve until the pressure of the output port of the pressure proportional control servo valve accurately reaches the preset pressure signal value.
At present, the fluctuation condition of pressure in a follow-up system in a large-flow pneumatic pressure proportional control servo valve is large, and the requirements of long-time pressure constant control and high-precision response cannot be met.
Based on this, the utility model designs a large-traffic pneumatic pressure proportional control servovalve to solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a large-traffic pneumatic pressure proportional control servo valve to at present, the undulant condition of pressure in servo system is big among the large-traffic pneumatic pressure proportional control servo valve, has not satisfied the problem of the requirement of long-time pressure constant control and high accuracy response in solving the above-mentioned background art and proposing.
In order to achieve the above object, the utility model provides a following technical scheme:
high-flow pneumatic pressure proportional control servo valve, including the valve body, be provided with the inner chamber in the valve body, the air inlet has been seted up on the inner chamber top, the intracavity is provided with the fly leaf, fly leaf bottom central authorities fixed mounting has the depression bar, the ejector pin is installed perpendicularly to the depression bar below, ejector pin bottom fixed mounting is on the pressure receiving plate, pressure receiving plate bottom fixed mounting has the rebound spare, first exhaust hole and second exhaust hole have been seted up respectively from top to bottom on the valve body lateral wall, integrated into one piece has first closing plate and second closing plate on the ejector pin.
As a further aspect of the present invention, the first airtight plate and the interval of the first exhaust hole are smaller than the second airtight plate and the interval of the second exhaust hole.
As a further aspect of the present invention, the movable plate is attached to the inner wall of the inner cavity, and the movable plate is provided with an air hole.
As a further scheme of the utility model, be located in the valve body receive the board and seted up firm spout all around, receive the board through integrated into one piece's slider slidable mounting in the firm spout.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses large-traffic pneumatic pressure proportional control servo valve, it is through the rebound spare that is located the bottom, and control pneumatic balance has just seted up first exhaust hole and second exhaust hole, can realize quick adjustment to the unbalanced condition of air current, and response speed is faster, for traditional servo valve, has simple structure, and the constant voltage is servo effectual, sets up the advantage that pressure accuracy is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of a large-flow pneumatic pressure proportional control servo valve according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a valve body; 2. an air inlet; 3. an inner cavity; 4. a movable plate; 5. air holes; 6. a pressure lever; 7. a top rod; 8. a pressure receiving plate; 9. a resilient member; 10. a stable chute; 11. a slider; 12. a first exhaust port; 13. a second vent hole; 14. a first obturation plate; 15. a second sealing plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the present invention provides a high-flow pneumatic pressure proportional control servo valve, wherein,
fig. 1 is a schematic view of the overall structure of a high-flow pneumatic pressure proportional control servo valve according to the present invention;
it can be seen from figure 1 that, in practical application, large-traffic pneumatic pressure proportional control servo valve, including valve body 1, be provided with inner chamber 3 in the valve body 1, air inlet 2 has been seted up on the 3 tops of inner chamber, be provided with fly leaf 4 in the inner chamber 3, 4 bottom central authorities of fly leaf have depression bar 6, ejector pin 7 is installed perpendicularly to depression bar 6 below, 7 bottom fixed mounting of ejector pin are on receiving pressure plate 8, receive 8 bottom fixed mounting of pressure plate to have rebound spare 9, first exhaust hole 12 and second exhaust hole 13 have been seted up respectively from top to bottom on the valve body 1 lateral wall, integrated into one piece has first closing plate 14 and second closing plate 15 on the ejector pin 7.
The distance between the first obturation plate 14 and the first exhaust hole 12 is smaller than the distance between the second obturation plate 15 and the second exhaust hole 13. The movable plate 4 is attached to the inner wall of the inner cavity 3, and the movable plate 4 is provided with an air hole 5. The valve body 1 is internally provided with a stable sliding groove 10 which is arranged around the pressed plate 8, and the pressed plate 8 is arranged in the stable sliding groove 10 in a sliding manner through an integrally formed sliding block 11.
When the air inlet 2 admits air, the movable plate 4 is pressed downwards, the air enters the lower part of the inner cavity through the air hole 5, when the pressure of the air flow above the inner cavity is large, the movable plate 4 drives the pressure sensor 6 to press the ejector rod 7 downwards, the air around the ejector rod cannot circulate through the blocking of the first sealing plate 14 and the second sealing plate 15, when the air pressure is large, the ejector rod 7 moves downwards, at the moment, the first sealing plate 14 and the second sealing plate 15 move downwards, and when the first sealing plate 14 is located below the first exhaust hole 12, part of the air is exhausted through the first exhaust hole 12 to adjust the internal pressure; if the pressure is still higher, the first sealing plate 14 and the second sealing plate 15 move downwards continuously, and when the second sealing plate 15 is positioned below the second exhaust hole 13, the first exhaust hole 12 and the second exhaust hole 13 exhaust air simultaneously to adjust the air pressure balance in the valve.
The utility model discloses large-traffic pneumatic pressure proportional control servo valve, it is through the rebound spare that is located the bottom, and control pneumatic balance has just seted up first exhaust hole and second exhaust hole, can realize quick adjustment to the unbalanced condition of air current, and response speed is faster, for traditional servo valve, has simple structure, and the constant voltage is servo effectual, sets up the advantage that pressure accuracy is high.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. Large-traffic pneumatic pressure proportional control servo valve, including valve body (1), its characterized in that, be provided with inner chamber (3) in valve body (1), air inlet (2) have been seted up on inner chamber (3) top, be provided with fly leaf (4) in inner chamber (3), fly leaf (4) bottom central fixed mounting has depression bar (6), ejector pin (7) are installed perpendicularly to depression bar (6) below, ejector pin (7) bottom fixed mounting is on receiving pressure plate (8), receive pressure plate (8) bottom fixed mounting have rebound spare (9), first exhaust hole (12) and second exhaust hole (13) have been seted up respectively from top to bottom on valve body (1) lateral wall, integrated into one piece has first closed plate (14) and second closed plate (15) on ejector pin (7).
2. High flow pneumatic pressure proportional control servo valve according to claim 1, characterized in that the distance between the first closing plate (14) and the first exhaust hole (12) is smaller than the distance between the second closing plate (15) and the second exhaust hole (13).
3. The high-flow pneumatic pressure ratio control servo valve according to claim 1, wherein the movable plate (4) is attached to the inner wall of the inner cavity (3), and the movable plate (4) is provided with an air hole (5).
4. The high-flow pneumatic pressure proportional control servo valve according to claim 1, wherein a stabilizing sliding groove (10) is formed in the valve body (1) at the periphery of the pressure receiving plate (8), and the pressure receiving plate (8) is slidably mounted in the stabilizing sliding groove (10) through an integrally formed sliding block (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220499668.5U CN217381791U (en) | 2022-03-08 | 2022-03-08 | High-flow pneumatic pressure proportional control servo valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220499668.5U CN217381791U (en) | 2022-03-08 | 2022-03-08 | High-flow pneumatic pressure proportional control servo valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217381791U true CN217381791U (en) | 2022-09-06 |
Family
ID=83102070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220499668.5U Expired - Fee Related CN217381791U (en) | 2022-03-08 | 2022-03-08 | High-flow pneumatic pressure proportional control servo valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217381791U (en) |
-
2022
- 2022-03-08 CN CN202220499668.5U patent/CN217381791U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20220906 |