CN109458371B - Pneumatic interlocking control device - Google Patents
Pneumatic interlocking control device Download PDFInfo
- Publication number
- CN109458371B CN109458371B CN201811558109.1A CN201811558109A CN109458371B CN 109458371 B CN109458371 B CN 109458371B CN 201811558109 A CN201811558109 A CN 201811558109A CN 109458371 B CN109458371 B CN 109458371B
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- valve
- rotary
- reversing
- linear
- air outlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a pneumatic interlocking control device, which comprises a pneumatic control operation box, wherein a pair of button valves, a pair of reversing valves and a pair of standby pressure valves are arranged in the pneumatic control operation box; the lifting and the rotation of the mechanical equipment are fully controlled through the pneumatic control operation box, and any electrical components and power supply are not needed. The method can be applied to control of mechanical equipment in environments with high explosion-proof requirements. The invention has the characteristics of simple structure, convenient operation, economy, practicability, low design and manufacturing cost, wide application range, effective reduction of the labor intensity of workers and the like, and improves the degree of automation and the stability of mechanical equipment in special environments.
Description
Technical Field
The invention relates to a pneumatic interlocking control device, and belongs to the technical field of automatic control of mechanical equipment.
Background
The existing pneumatic control technology basically does not realize interlocking control, is mainly finished by manpower step by step, and has low efficiency; meanwhile, due to the participation of manpower, accidental factors are increased, and equipment is easily damaged due to misoperation.
Some pneumatic control adopts electric and gas combined control, and an electromagnetic reversing valve and a proximity switch (or a travel switch) are controlled by a PLC (programmable logic controller) or a DCS (distributed control system) to achieve the purpose of interlocking control, but the interlocking control mode is suitable for special environments with strict explosion-proof requirements.
Disclosure of Invention
The invention aims to provide a pneumatic interlocking control device. So as to adapt to the automatic control of environmental mechanical equipment with strict explosion-proof requirements.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the invention relates to a pneumatic interlocking control device which comprises a start button valve, a stop button valve, a linear reversing valve, a rotary reversing valve, a linear limiting valve, a rotary limiting valve, a first standby pressure valve and a second standby pressure valve; the air inlets of the valves are connected with a dry pure air source through pipelines; the air outlet of the starting button valve is connected with one reversing port of the first standby pressure valve, the second standby pressure valve and the linear reversing valve through a pipeline, and the other reversing port of the linear reversing valve is connected with the air outlet of the second standby pressure valve; the air outlet of the stop button valve is connected with the other reversing ports of the first standby pressure valve, the second standby pressure valve and the rotary reversing valve through pipelines, and one reversing port of the rotary reversing valve is connected with the air outlet of the first standby pressure valve; the air outlet of the linear limit valve is connected with the air inlet of the first pressure preparation valve; the air outlet of the rotary limiting valve is connected with the air inlet of the second standby pressure valve; the air outlet of the linear reversing valve is connected with the air inlet of the lifting cylinder, and the air outlet of the lifting cylinder is connected with the air return port of the linear reversing valve; the air outlet of the rotary reversing valve is connected with the air inlet of the rotary cylinder, and the air outlet of the rotary cylinder is connected with the air return port of the rotary reversing valve.
In the device, the air outlet of the linear reversing valve is connected with the air inlet of the lifting cylinder through the speed regulating valve, and the air outlet of the lifting cylinder is connected with the air return port of the linear reversing valve through the speed regulating valve; the air outlet of the rotary reversing valve is connected with the air inlet of the rotary cylinder through the speed regulating valve, and the air outlet of the rotary cylinder is connected with the air return port of the rotary reversing valve through the speed regulating valve.
In the device, the start button valve, the stop button valve, the linear reversing valve, the rotary reversing valve, the first backup pressure valve and the second backup pressure valve are arranged in the pneumatic control operation box.
In the device, the lifting cylinder and the rotating cylinder are arranged at positions where the mechanical equipment needs to lift, move or rotate.
In the device, the linear limiting valve is arranged at a position where the equipment can touch when the mechanical equipment is reset through linear motion; the rotary limiting valve is arranged at a position which can be touched by the equipment when the mechanical rotary motion is reset.
Due to the adoption of the technical scheme, the pneumatic control device comprises a pneumatic control operation box, wherein a pair of button valves, a pair of reversing valves and a pair of standby valves are arranged in the pneumatic control operation box; the lifting and the rotation of the mechanical equipment are fully controlled through the pneumatic control operation box, and any electrical components and power supply are not needed. The method can be applied to control of mechanical equipment in environments with high explosion-proof requirements. The invention has the characteristics of simple structure, convenient operation, economy, practicability, low design and manufacturing cost, wide application range, effective reduction of the labor intensity of workers and the like, and improves the degree of automation and the stability of mechanical equipment in special environments.
When the operation is performed, the linkage action of the two pneumatic execution elements can be realized by only pressing the start button valve, and similarly, the return linkage action of the two pneumatic execution elements can be realized by only pressing the stop button valve. The invention can be extended to multiple pneumatic linkage control requirements. Convenient operation and simple structure, and is particularly suitable for special environments with higher explosion-proof requirements. The invention has the characteristics of simple structure, practicality, convenient operation, low design and manufacturing cost, wide application range, effective reduction of the labor intensity of workers and the like, and improves the automation degree and the stability of equipment.
Drawings
Fig. 1 is a schematic diagram of the pneumatic control connection structure of the present invention.
Marked in the figure as: 11-start button valve, 12-stop button valve, 21-straight line reversing valve, 22-rotary reversing valve, 31-straight line limiting valve, 32-rotary limiting valve, 41-first-aid pressure valve, 42-second-aid pressure valve, 5-lifting cylinder, 6-rotary cylinder, 7-speed regulating valve and 8-pneumatic control operation box.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples.
The pneumatic interlocking control device comprises a start button valve 11, a stop button valve 12, a linear reversing valve 21, a rotary reversing valve 22, a linear limiting valve 31, a rotary limiting valve 32, a first standby pressure valve 41 and a second standby pressure valve 42, as shown in fig. 1; the air inlets of the valves are connected with a dry pure air source through pipelines; the air outlet of the start button valve 11 is connected with one reversing port of the first standby pressure valve 41, the second standby pressure valve 42 and the linear reversing valve 21 through a pipeline, and the other reversing port of the linear reversing valve 21 is connected with the air outlet of the second standby pressure valve 42; the air outlet of the stop button valve 12 is connected with the other reversing ports of the first backup pressure valve 41, the second backup pressure valve 42 and the rotary reversing valve 22 through pipelines, and one reversing port of the rotary reversing valve 22 is connected with the air outlet of the first backup pressure valve 41; the air outlet of the linear limit valve 31 is connected with the air inlet of the first pressure preparation valve 41; the air outlet of the rotation limit valve 32 is connected with the air inlet of the second standby pressure valve 42; the air outlet of the linear reversing valve 21 is connected with the air inlet of the lifting cylinder 5, and the air outlet of the lifting cylinder 5 is connected with the air return port of the linear reversing valve 21; the air outlet of the rotary reversing valve 22 is connected with the air inlet of the rotary cylinder 6, and the air outlet of the rotary cylinder 6 is connected with the air return port of the rotary reversing valve 22. The air outlet of the linear reversing valve 21 is connected with the air inlet of the lifting cylinder 5 through the speed regulating valve 7, and the air outlet of the lifting cylinder 5 is connected with the air return port of the linear reversing valve 21 through the speed regulating valve 7; the air outlet of the rotary reversing valve 22 is connected with the air inlet of the rotary cylinder 6 through the speed regulating valve 7, and the air outlet of the rotary cylinder 6 is connected with the air return port of the rotary reversing valve 22 through the speed regulating valve 7. All of the above valves are pneumatic valves.
The start button valve 11, stop button valve 12, linear direction valve 21, rotary direction valve 22, first backup pressure valve 41, and second backup pressure valve 42 are provided in the air control operation box 8. The lifting cylinder 5 and the rotating cylinder 6 are arranged at positions where the mechanical equipment needs to lift, move or rotate. The linear limiting valve 31 is arranged at a position which can be touched by the equipment when the mechanical equipment is reset through linear motion; the rotation limiting valve 32 is mounted in a position that the device can reach when the mechanical rotational movement is reset.
Examples
In specific implementation, the combination of a plurality of the invention can be adopted according to the requirements of the mechanical equipment to control a plurality of actions of the mechanical equipment, and the control of only one lifting or translation action and one rotation action is not limited. It is intended that modifications based on the technical solution of the present invention or equivalent substitutions of some technical features thereof shall fall within the scope of the present invention for those skilled in the art.
Claims (3)
1. A pneumatic interlocking control device comprises a start button valve (11), a stop button valve (12), a linear reversing valve (21), a rotary reversing valve (22), a linear limiting valve (31), a rotary limiting valve (32), a first standby pressure valve (41) and a second standby pressure valve (42); the method is characterized in that: the air inlets of the start button valve (11), the stop button valve (12), the linear reversing valve (21), the rotary reversing valve (22), the linear limiting valve (31), the rotary limiting valve (32), the first standby pressure valve (41) and the second standby pressure valve (42) are connected with a dry pure air source through pipelines; the air outlet of the starting button valve (11) is connected with one reversing port of the first standby pressure valve (41), the second standby pressure valve (42) and the linear reversing valve (21) through a pipeline, and the other reversing port of the linear reversing valve (21) is connected with the air outlet of the second standby pressure valve (42); the air outlet of the stop button valve (12) is connected with the other reversing ports of the first standby pressure valve (41), the second standby pressure valve (42) and the rotary reversing valve (22) through pipelines, and one reversing port of the rotary reversing valve (22) is connected with the air outlet of the first standby pressure valve (41); the air outlet of the linear limit valve (31) is connected with the air inlet of the first pressure valve (41); the air outlet of the rotary limiting valve (32) is connected with the air inlet of the second pressure preparation valve (42); the air outlet of the linear reversing valve (21) is connected with the air inlet of the lifting cylinder (5), and the air outlet of the lifting cylinder (5) is connected with the air return port of the linear reversing valve (21); the air outlet of the rotary reversing valve (22) is connected with the air inlet of the rotary air cylinder (6), and the air outlet of the rotary air cylinder (6) is connected with the air return port of the rotary reversing valve (22); the air outlet of the linear reversing valve (21) is connected with the air inlet of the lifting cylinder (5) through the speed regulating valve (7), and the air outlet of the lifting cylinder (5) is connected with the air return port of the linear reversing valve (21) through the speed regulating valve (7); the air outlet of the rotary reversing valve (22) is connected with the air inlet of the rotary air cylinder (6) through a speed regulating valve (7), and the air outlet of the rotary air cylinder (6) is connected with the air return port of the rotary reversing valve (22) through the speed regulating valve (7); the linear limiting valve (31) is arranged at a position which can be touched by the equipment when the mechanical equipment is reset through linear motion; the rotation limiting valve (32) is arranged at a position which can be touched by the equipment when the mechanical rotation motion is reset.
2. The pneumatic interlock control device of claim 1 wherein: the start button valve (11), the stop button valve (12), the linear reversing valve (21), the rotary reversing valve (22), the first backup pressure valve (41) and the second backup pressure valve (42) are arranged in the pneumatic control operation box (8).
3. The pneumatic interlock control device of claim 1 wherein: the lifting cylinder (5) and the rotating cylinder (6) are arranged at positions where the mechanical equipment needs to lift, move or rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811558109.1A CN109458371B (en) | 2018-12-19 | 2018-12-19 | Pneumatic interlocking control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811558109.1A CN109458371B (en) | 2018-12-19 | 2018-12-19 | Pneumatic interlocking control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109458371A CN109458371A (en) | 2019-03-12 |
| CN109458371B true CN109458371B (en) | 2023-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811558109.1A Active CN109458371B (en) | 2018-12-19 | 2018-12-19 | Pneumatic interlocking control device |
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| Country | Link |
|---|---|
| CN (1) | CN109458371B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0077984A1 (en) * | 1981-10-27 | 1983-05-04 | Klemens Milde | Positioning actuator |
| CN201043546Y (en) * | 2007-05-29 | 2008-04-02 | 天津市太平洋仪表有限公司 | Electric-pneumatic valve locator |
| CN102080676A (en) * | 2009-11-30 | 2011-06-01 | 中原特种车辆有限公司 | Pneumatic safety device |
| CN203892279U (en) * | 2014-05-15 | 2014-10-22 | 宝鸡石油机械有限责任公司 | Automatic liquid level control system for fracturing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6416033B1 (en) * | 2000-06-21 | 2002-07-09 | Flowserve Management Company | Air over hydraulics actuator system |
-
2018
- 2018-12-19 CN CN201811558109.1A patent/CN109458371B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0077984A1 (en) * | 1981-10-27 | 1983-05-04 | Klemens Milde | Positioning actuator |
| CN201043546Y (en) * | 2007-05-29 | 2008-04-02 | 天津市太平洋仪表有限公司 | Electric-pneumatic valve locator |
| CN102080676A (en) * | 2009-11-30 | 2011-06-01 | 中原特种车辆有限公司 | Pneumatic safety device |
| CN203892279U (en) * | 2014-05-15 | 2014-10-22 | 宝鸡石油机械有限责任公司 | Automatic liquid level control system for fracturing |
Non-Patent Citations (1)
| Title |
|---|
| 气动顺序控制器;时圣勇;液压与气动(第02期) * |
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| Publication number | Publication date |
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| CN109458371A (en) | 2019-03-12 |
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