Mainly reflected in the following aspects: 1 use small torque to promote the potentiometer and mechanical fastening, effectively reduce the strain of mechanical stress.

　　Improve the positioning parallelism of electrical components and mechanical parts, reduce mechanical wear.

　　3. Eliminate the transmission clearance of gear, improve the transmission accuracy and efficiency.

　　4. Simpler structure, no need to disassemble parts, can use smaller torque to facilitate the clutch of electrical components and mechanical devices, debugging.

　　Most of the traditional mechanical and electrical positioning techniques use a tension spring to fix the sliding shaft of the potentiometer and the mechanical sampling gear. After use for a long time, it will produce serious deformation and wear due to long-term mechanical stress. Thus, the positioning sampling accuracy and life are greatly reduced. PPD localization technology creates a new localization mode.

　　4 Technical Application

　　Electrical and mechanical positioning device in industrial automation process control equipment in the electric actuator to realize the key technology of electromechanical integration. The accuracy of positioning is directly related to the control accuracy, stability and operation life of the equipment.

　　PPD positioning technology is GRAT Greite control valve company invented in 2010 for: industrial automation process control device (electric actuator, electric actuator, electric regulating valve, etc.) mechanical and electrical components of the positioning device utility model patent technology.

　　Belongs to: a new technology with long life, high positioning accuracy and simple debugging.

　　PPD positioning technology can be widely used in various mechanical and electrical products in the mechanical and electrical positioning device.

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