Pneumatic motor servo system and control method
A technology of pneumatic motor and servo system, which is applied in the direction of fluid pressure actuation system components, fluid pressure actuation devices, mechanical equipment, etc. problems, to achieve the effect of improving performance and broadening the field of use
Inactive Publication Date: 2016-03-30
NANTONG UNIVERSITY
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[0008] However, due to the lack of research on aerodynamic fluid mechanics in China, the air motor is still in the open-loop control stage. Compared with the electric motor and hydraulic motor, the research on its speed and torque control is less, so the air motor is usually used in some For occasions that do not require precise control, for underwater ROV, underwater drilling and mining, etc. that require high control precision, the air motor cannot give full play to its inherent advantages
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[0031] Such as figure 1 The air motor servo system shown is mainly composed of three parts: air servo motor, flow and direction regulator, and air servo controller. It has the functions of controlling the running direction and speed adjustment of the air motor.
[0032] 1. Pneumatic servo motor
[0033] It is mainly composed of a conventional air motor 6, a clamping fixture 7, and a speed sensor 8. The speed sensor 8 is clamped and fixed on the output shaft of the air motor 6 by the clamping fixture 7, so that the speed sensor 8 and the air motor 6 are coaxially synchronized. Rotational movement, the speed sensor 8 measures the actual speed of the air motor 6, and converts it into an electrical signal, which is sent to the pneumatic servo controller. The intelligent control algorithm in the pneumatic servo controller continuously compares the error between the set speed and the actual speed, and Using this error as the input of the intelligent control algorithm, the air intak...
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The invention discloses a pneumatic motor servo system and a control method. The pneumatic motor servo system comprises a pneumatic servo motor, a flow and direction regulator and a pneumatic servo controller. The pneumatic servo motor is composed of a pneumatic motor, a clamping fixer and a rotation speed sensor, wherein the rotation speed sensor is clamped and fixed to an output shaft of the pneumatic motor through the clamping fixer. The flow and direction regulator is installed at the front end of an air inlet of the pneumatic servo motor and composed of an air inflow switch valve, a flow proportion regulating valve, a flow sensor, a forward-rotation switching valve and a reverse-rotation switching valve. The pneumatic servo controller is composed of a CPU module, an A / D collection module, a D / A output module and a communication module. By the adoption of the pneumatic motor servo system, the rotation speed of the pneumatic motor can be accurately controlled, so that the pneumatic motor has the preliminary servo characteristic, the performance of the pneumatic motor is improved, the use field of the pneumatic motor is broadened, and the system can be widely applied to an underwater ROV and the occasions for underwater drilling and mining and the like with the requirement for high control accuracy.
Description
technical field [0001] The invention relates to an air motor servo system, which belongs to the technical fields of electromechanical integration, sensing and measurement and control, and is applicable to occasions such as mines and oil fields, ocean engineering, ports and wharves. Background technique [0002] Compared with traditional electric motors and hydraulic motors, air motors are lighter in weight and easy to install and transport; and because their working medium is compressed air, they will not cause fire; when the air motor is overloaded, it can maintain a balance with the air supply pressure and stop automatically ;Compared with hydraulic motors, the leakage of compressed air will not pollute the environment; compared with electric motors, there is no motor damage caused by problems such as overvoltage, overcurrent, and insulation degradation. Therefore, the air motor has the following advantages: [0003] (1) It is safe to work, has explosion-proof performance...
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IPC IPC(8): F15B21/08
CPCF15B21/08
Inventor 周根荣姜平薛卫卫陈瑞祥钟永彦
Owner NANTONG UNIVERSITY