Working characteristics and principle of hydraulic servo system

With servo system composed of hydraulic components (what) servo system is called a hydraulic servo system, and the speed of the hydraulic servo system is easy to realize linear motion displacement and force control, driving force, torque and power, small size light weight, good speed performance, fast response, high control precision, stability, the advantages of easy to guarantee (the classification of the servo system). So what is a hydraulic servo system? The editor made a detailed summary of the basic knowledge of the hydraulic servo system by collecting and sorting data.

Working characteristics of hydraulic servo system (working principle of the servo system)
(1) hydraulic servo system is a position tracking system.

(2) hydraulic servo system is a force amplification system.

(3) the hydraulic servo system is a negative feedback system.

(4) hydraulic servo system is an error system.

Hydraulic servo system classification

According to the output physical quantity: position, speed, force servo system
Classification by signal: hydraulic, electro-hydraulic, gas-liquid servo system
By component: valve control system, pump control system
The principle of hydraulic servo system
The principle of hydraulic servo system
In the hydraulic servo system, the control signal is in the form of organic hydraulic servo system, electro-hydraulic servo system and gas-liquid servo system. The mechanical components are used in the given, feedback and comparison of the system in the hydraulic servo system. However, the friction, gap and inertia in the feedback mechanism will adversely affect the system accuracy. The detection, correction and initial amplification of error signals in the electro-hydraulic servo system adopt electrical and electronic components or computers to form the analog servo system, digital servo system or digital analog hybrid servo system. Electro-hydraulic servo system has the advantages of high control accuracy, high response speed, flexible signal processing and wide application