CN214118627U - Pneumatic control system and pneumatic actuating mechanism thereof - Google Patents
Pneumatic control system and pneumatic actuating mechanism thereof Download PDFInfo
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- CN214118627U CN214118627U CN202120518387.5U CN202120518387U CN214118627U CN 214118627 U CN214118627 U CN 214118627U CN 202120518387 U CN202120518387 U CN 202120518387U CN 214118627 U CN214118627 U CN 214118627U
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- pneumatic
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- pneumatic actuator
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Abstract
The application discloses pneumatic control system and pneumatic actuator thereof, this pneumatic actuator includes: a pneumatic actuator comprising a chamber including a piston within the chamber that is permitted to reciprocate under gas actuation; the air inlet circuit and the air return circuit are communicated with the cavity through a reversing valve and are used for supplying air into the cavity or recovering air discharged from the cavity when the piston moves; and a wireless controller electrically connected to the directional valve, the wireless controller comprising: the wireless transmission module is used for receiving a wireless control signal or sending working state information; and the control module is used for sending a control instruction according to the wireless control signal so as to control the reversing valve to be switched on, off or switch the gas circuit. According to the technical scheme of the application, remote accurate control over a plurality of pneumatic actuating mechanisms can be achieved.
Description
Technical Field
The application relates to the field of mechanical control, in particular to a pneumatic control system and a pneumatic actuating mechanism thereof.
Background
Pneumatic machines powered by compressed air or inert gas have found widespread use in modern industrial production due to their relatively low cost of use and relatively high efficiency of operation. In the use of the pneumatic machine, a gas source is generally required to provide driving force, and an electric control element such as a solenoid valve is controlled by an electric signal to control the running state of the pneumatic machine through the change of a gas path.
When the pneumatic machine to be controlled is more, the number of the electric control elements to be controlled is increased correspondingly. The traditional arrangement mode usually needs to connect a plurality of electric control elements to one or more controllers through lines, the arrangement mode is complex in line layout, more energy is consumed for installation, and the complex line controller is usually arranged nearby a working machine, so that an operator needs to operate on a working site, the energy of the operator is restrained, and potential safety hazards exist.
Therefore, how to realize remote precise control of a plurality of pneumatic actuators becomes a technical problem to be solved in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the present application provides a pneumatic control system and a pneumatic actuator thereof, so as to achieve remote precise control over a plurality of pneumatic actuators.
According to the present application, a pneumatic actuator is proposed, comprising: a pneumatic actuator comprising a chamber including a piston within the chamber that is permitted to reciprocate under gas actuation; the air inlet circuit is used for supplying air to the cavity or recovering air discharged from the cavity when the piston moves; and a wireless controller electrically connected to the directional valve, the wireless controller comprising: the wireless transmission module is used for receiving a wireless control signal or sending working state information; and the control module is used for sending a control instruction according to the wireless control signal so as to control the reversing valve to be switched on, off or switch the gas circuit.
Preferably, an electrically controlled regulating valve is arranged on the air inlet path and/or the air return path, the electrically controlled regulating valve is electrically connected with the wireless controller, and the control module sends out a control instruction according to the wireless control signal so as to control the electrically controlled regulating valve to regulate the flow of the air return path.
Preferably, a valve positioner is arranged on the electric control regulating valve, and the valve positioner is electrically connected with the wireless controller and is used for monitoring the working state information of the electric control regulating valve in real time and sending the working state information to the wireless controller.
Preferably, at least one position sensor is arranged on the cavity, and the at least one position sensor is electrically connected with the wireless controller and is used for measuring the working state information of the piston in real time and sending the working state information to the wireless controller.
Preferably, the wireless controller includes a judging module, and the judging module is configured to judge whether the pneumatic actuator normally operates according to the operating state information received by the wireless controller, and send a judgment result through the wireless transmission module.
Preferably, an elastic mechanism acting on the piston is arranged in the cavity, and the reversing valve is a three-way reversing valve; when the reversing valve is switched to supply air to the cavity from the air inlet, air pressure acts on the piston to enable the piston to move in a direction of overcoming the elastic force of the elastic mechanism; when the reversing valve is switched to exhaust from the cavity to the air return path, the elastic mechanism acts on the piston to enable the piston to move towards the direction of the elastic force.
Preferably, the reversing valve is a four-way reversing valve, and the four-way reversing valve is respectively communicated with two ends of the cavity in the moving path of the piston.
Preferably, the pneumatic actuator is a linear drive or a rotary drive.
There is also provided, in accordance with another aspect of the present application, a pneumatic control system, including: a plurality of pneumatic actuators, the pneumatic actuators being any of the pneumatic actuators described above; and the control center is connected with the wireless transmission module of the pneumatic actuating mechanism through wireless communication and is used for receiving the working state information of the pneumatic actuating mechanism or sending a control command to the pneumatic actuating mechanism.
Preferably, the control center comprises a master control center and at least one sub-control center in communication connection with the master control center, and any sub-control center is in wireless communication connection with the plurality of pneumatic actuators.
According to the technical scheme of the application, the wireless control signal is sent to the wireless transmission module of the wireless controller of the pneumatic actuating mechanism, the working state of the reversing valve can be remotely controlled through the control module, for example, the connection state of the air inlet circuit and the air return circuit in the driving air circuit and the cavity of the pneumatic actuator is switched by controlling the reversing valve, so that the reciprocating motion of the piston is controlled or the operation of the pneumatic actuator is remotely opened or closed, and the pneumatic actuating mechanism convenient for remote control of workers is further provided.
Additional features and advantages of the present application will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate an embodiment of the invention and, together with the description, serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of a pneumatic actuator according to a preferred embodiment of the present application;
FIG. 2 is a schematic view of a pneumatic actuator according to another preferred embodiment of the present application;
FIG. 3 is a schematic diagram of a pneumatic control system according to a preferred embodiment of the present application.
Detailed Description
The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to realize remote accurate control of a pneumatic actuator, the present application provides a pneumatic actuator, as shown in fig. 1 and 2, including: a pneumatic actuator 10, the pneumatic actuator 10 including a chamber 11, a piston 12 inside the chamber 11 for allowing reciprocating movement under gas drive; the driving air path comprises an air inlet path 21 and an air return path 22, the air inlet path 21 and the air return path 22 are communicated with the cavity 11 through a reversing valve 23 and are used for supplying air into the cavity 11 or recovering air discharged from the cavity 11 when the piston 12 moves; and a wireless controller 30, the wireless controller 30 being electrically connected to the directional valve 23, the wireless controller 30 including: the wireless transmission module is used for receiving a wireless control signal or sending working state information; and the control module is used for sending a control instruction according to the wireless control signal so as to control the reversing valve 23 to be switched on, switched off or switched over the air path.
According to the scheme of the application, the pneumatic actuating mechanism is provided with the wireless controller 30, and a worker can send a control instruction to a wireless transmission module of the wireless controller 30 through a remote control terminal or a wireless control center, so that the remote control reversing valve 23 can be switched on or off to drive the air path connection between the air path and the pneumatic actuator 10, and further the remote control of the pneumatic actuating mechanism is realized. On the other hand, the wireless controller 30 can preferably feed back the working information of the pneumatic actuator to the worker or the control center through the wireless transmission module, so that the worker can monitor the working state of the pneumatic actuator in real time without arriving at the production site, and the safety of the worker is improved.
In this embodiment, the pneumatic actuator 10 is pneumatically driven by the piston 12 to operate a mechanism associated with the piston 12, such as a transmission mechanism, for example, a push rod or a rack connected to the piston 12. The air source of the air inlet 21 in the driving air path may be air or inert gas provided by an air pump or an air tank, and the air discharged from the pneumatic actuator 10 may be returned to the air source or discharged to the atmosphere through the air return path 22.
As shown in fig. 1 and fig. 2, an electrically controlled regulating valve 24 is preferably disposed on the air inlet path 21 and/or the air return path 22 in the driving air path, the electrically controlled regulating valve 24 is electrically connected to a wireless controller 30, and the control module sends a control instruction according to a wireless control signal to control the electrically controlled regulating valve 24 to regulate the flow rate of the air return path 22. Through the adjustment of the gas flow of the air inlet circuit 21 and/or the air return circuit 22, the moving speed of the piston 12 of the pneumatic actuator 10 under the influence of the air pressure can be effectively limited, so that the applicability of the pneumatic actuator is improved, and the pneumatic actuator can provide mechanical driving functions with different speeds according to different working conditions. In order to improve the stability of the electrically controlled regulating valve 24 on the flow control, a valve positioner 25 is preferably disposed on the electrically controlled regulating valve 24, and the valve positioner 25 is electrically connected to the wireless controller 30, and is used for monitoring the working state information (on-off state, valve position state, etc.) of the electrically controlled regulating valve 24 in real time and sending the information to the wireless controller 30. The cavity 11 may also be provided with at least one position sensor 13, and the at least one position sensor 13 is electrically connected to the wireless controller 30, and is used for measuring the working state information of the piston 12 (such as the position information of the piston) in real time and transmitting the working state information to the wireless controller 30. The wireless controller 30 can send the working state information to a worker or an upper control center through the wireless transmission module, so as to accurately control the working state information such as the flow of the gas path or the position of the piston. According to the above embodiment, the wireless controller 30 includes a determining module, and the determining module is configured to determine whether the pneumatic actuator normally operates according to the operating status information received by the wireless controller 30, and send a determination result through the wireless transmission module. The judging module preferably comprises a programmable logic controller which is used for automatically sending an instruction for adjusting the working state according to the working state information after receiving the working state information according to the pre-programmed working conditions, so that the working stability of the pneumatic actuating mechanism is further improved, and the workload of workers is reduced.
According to any of the pneumatic actuators described above, the pneumatic actuator may be a one-way driven actuator, and preferably, as shown in fig. 2, the elastic mechanism 14 acting on the piston 12 may be disposed in the cavity 11 of the pneumatic actuator 10, and the reversing valve 23 may be a three-way reversing valve. According to this embodiment, by controlling the switching of the switching valve 23, only the air intake passage 21 may be connected to the chamber 11 to allow the air pressure to push the piston 12, or only the air return passage 22 may be connected to the chamber 11 to allow the piston 12 to push the air in the chamber 11. When the reversing valve 23 is switched to supply air from the air inlet channel 21 to the cavity 11, air pressure acts on the piston 12 to enable the piston to move in a direction overcoming the elastic force of the elastic mechanism 14; when the direction change valve 23 is switched to exhaust the air from the chamber 11 to the return passage 22, the elastic mechanism 14 acts on the piston 12 to move the piston in the direction of the elastic force. In the pneumatic actuator of this embodiment, the elastic force of the elastic means 14, which may be a tensile force or a pushing force, acts between the piston 12 and the chamber 11, and the elastic means 14 is preferably an elastic member of a metal or nonmetal material such as a spring.
The pneumatic actuator of the present application may also be a bi-directional driving actuator, and preferably, as shown in fig. 1, the reversing valve 23 may be a four-way reversing valve, and the four-way reversing valve 23 is respectively communicated with two ends of the moving path of the piston 12 of the cavity 11. According to this embodiment, by switching the four-way selector valve, the position at which the intake passage 21 and the return passage 22 communicate with the cavity 11 can be changed, and the end of the piston 12 communicating with the intake passage 21 can be moved toward the end communicating with the return passage 22.
In the pneumatic actuator of the present application, the pneumatic actuator 10 may be a linear actuator or a rotary actuator or the like that operates by moving a piston. The pneumatic actuating mechanisms with different driving modes can be remotely controlled by the same set of pneumatic control system so as to realize complex production work through a simpler control system.
There is also provided according to another aspect of the present application, a pneumatic control system, as shown in fig. 3, including: a plurality of pneumatic actuators, which may be any one or more of the pneumatic actuators of the embodiments described above; and the control center is connected with the wireless transmission module of the pneumatic actuating mechanism through wireless communication and is used for receiving the working state information of the pneumatic actuating mechanism or sending a control command to the pneumatic actuating mechanism. Wherein, the control center can be provided with one or more pneumatic actuators which need to be wirelessly controlled and the range factor. Preferably, as shown in fig. 3, the control center includes a general control center 40 and at least one sub-control center 41 in communication connection with the general control center 40, and any sub-control center 41 is in wireless communication connection with a plurality of pneumatic actuators, so that a larger number of pneumatic actuators in a larger range can be monitored and controlled simultaneously by one general control center 40. The sub-control center 41 serves as a signal transfer center of the master control center, and may also be configured as a multi-level transfer center, for example, one higher-level sub-control center may be connected to a plurality of lower-level sub-control centers in a wireless communication manner, and the lower-level sub-control centers may control a plurality of pneumatic actuators, respectively.
According to the pneumatic control system and the pneumatic actuator thereof in the preferred embodiment of the present application, a worker can remotely send wireless control signals to the wireless transmission modules of the wireless controllers 30 of a plurality of pneumatic actuators through the general control center 40, so as to remotely control the working states of the electrical control elements such as the directional valve 23, the electrical control regulating valve 24, and the like through the control modules. The working state information of a plurality of pneumatic actuators can be monitored by combining the position sensor 13, the valve positioner 25 and other sensing elements, and potential safety hazards can be eliminated when problems are found. Therefore, according to the pneumatic control system and the pneumatic actuating mechanism thereof, the technical scheme capable of realizing remote accurate control and monitoring of a plurality of pneumatic actuating mechanisms is provided.
The preferred embodiments of the present application have been described in detail above, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the technical idea of the present application, and these simple modifications all belong to the protection scope of the present application.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in the present application.
In addition, any combination of the various embodiments of the present application is also possible, and the same should be considered as disclosed in the present application as long as it does not depart from the idea of the present application.
Claims (10)
1. Pneumatic actuator, characterized in that, this pneumatic actuator includes:
a pneumatic actuator (10), the pneumatic actuator (10) comprising a chamber (11), a piston (12) within the chamber (11) that is permitted to reciprocate under gas actuation;
the driving air path comprises an air inlet path (21) and an air return path (22), the air inlet path (21) and the air return path (22) are communicated with the cavity (11) through a reversing valve (23) and are used for supplying air into the cavity (11) or recovering air discharged from the cavity (11) when the piston (12) moves; and
a wireless controller (30), the wireless controller (30) being electrically connected to the diverter valve (23), the wireless controller (30) comprising: the wireless transmission module is used for receiving a wireless control signal or sending working state information; and the control module is used for sending a control instruction according to the wireless control signal so as to control the reversing valve (23) to be switched on, off or switch the gas path.
2. The pneumatic actuator according to claim 1, wherein an electrically controlled regulating valve (24) is disposed on the air inlet path (21) and/or the air return path (22), the electrically controlled regulating valve (24) is electrically connected to the wireless controller (30), and the control module sends a control command according to the wireless control signal to control the electrically controlled regulating valve (24) to regulate the flow of the air return path (22).
3. The pneumatic actuator according to claim 2, wherein a valve positioner (25) is disposed on the electrically controlled regulating valve (24), and the valve positioner (25) is electrically connected to the wireless controller (30) for monitoring the operating state information of the electrically controlled regulating valve (24) in real time and transmitting the operating state information to the wireless controller (30).
4. The pneumatic actuator according to claim 2, wherein at least one position sensor (13) is arranged on the cavity (11), and the at least one position sensor (13) is electrically connected with the wireless controller (30) and is used for measuring the working state information of the piston (12) in real time and transmitting the working state information to the wireless controller (30).
5. The pneumatic actuator according to claim 1, wherein the wireless controller (30) comprises a determining module, and the determining module is configured to determine whether the pneumatic actuator is working normally according to the working status information received by the wireless controller (30), and send the determination result through the wireless transmission module.
6. Pneumatic actuator according to claim 1, wherein elastic means (14) acting on the piston (12) are provided in the chamber (11), the reversing valve (23) being a three-way reversing valve;
when the reversing valve (23) is switched to supply air from the air inlet channel (21) to the cavity (11), air pressure acts on the piston (12) to enable the piston to move towards the direction of overcoming the elastic force of the elastic mechanism (14);
when the reversing valve (23) is switched to exhaust air from the cavity (11) to the air return passage (22), the elastic mechanism (14) acts on the piston (12) to enable the piston to move towards the direction of the elastic force.
7. The pneumatic actuator according to claim 1, wherein the reversing valve (23) is a four-way reversing valve, and the four-way reversing valve (23) is respectively communicated with the two ends of the cavity (11) in the moving path of the piston (12).
8. Pneumatic actuator according to any of claims 1 to 7, wherein the pneumatic actuator (10) is a linear drive or a rotary drive.
9. A pneumatic control system, characterized in that the pneumatic control system comprises:
a plurality of pneumatic actuators according to any one of claims 1 to 8;
and the control center is connected with the wireless transmission module of the pneumatic actuating mechanism through wireless communication and is used for receiving the working state information of the pneumatic actuating mechanism or sending a control command to the pneumatic actuating mechanism.
10. The pneumatic control system according to claim 9, wherein the control center comprises a master control center (40) and at least one sub-control center (41) in communication connection with the master control center (40), any sub-control center (41) being in wireless communication connection with a plurality of the pneumatic actuators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120518387.5U CN214118627U (en) | 2021-03-11 | 2021-03-11 | Pneumatic control system and pneumatic actuating mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120518387.5U CN214118627U (en) | 2021-03-11 | 2021-03-11 | Pneumatic control system and pneumatic actuating mechanism thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214118627U true CN214118627U (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120518387.5U Expired - Fee Related CN214118627U (en) | 2021-03-11 | 2021-03-11 | Pneumatic control system and pneumatic actuating mechanism thereof |
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| Country | Link |
|---|---|
| CN (1) | CN214118627U (en) |
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2021
- 2021-03-11 CN CN202120518387.5U patent/CN214118627U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210903 |
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| CF01 | Termination of patent right due to non-payment of annual fee |