Servo hydraulic drive system is an automatic control system that takes mechanical position or angle as the control object, for example, hydraulic baler machine, CNC machine tool, etc.
The driving motor used in the servo system requires fast response speed, accurate positioning and moment of inertia (the moment of inertia of the servo motor used in the electromechanical system is large, in order to be directly connected to mechanical parts such as the screw. There is a special type of servo motor Small inertia motor, in order to obtain extremely high response speed. However, this type of motor has low overload capacity, when used in the feed servo system, it must be accelerated and decelerated. The moment of inertia reflects the acceleration characteristics of the system. The moment of inertia of the system cannot be greater than 3 times of the moment of inertia of the motor.) This type of special motor is called a servo motor.
Of course, its basic working principle is no different from ordinary AC and DC motors. The dedicated drive unit for this type of motor is called a servo drive unit, sometimes referred to as a servo, and generally contains a closed loop of current, speed, and / or position.
Servo is a term for performance. Generally, as long as the approximation of the command and control results reaches a certain level, it can be called servo, which has no direct relationship with the structure of the machine. For example, the servo system does not have a precise range of inertia matching. This is because the result of inertia matching is only as long as it does not affect the control object to follow or influence the main command, and it does not matter whether it is 3 or 3.5. The servo system is not necessarily a motor system, and some pneumatic systems are called pneumatic servos.
The servo system is essentially a servo system. It's just that the quantity being controlled is displacement or its derivative with time.
If you want to ask what a servo system is, the output of a system reproduces the input signal in the fastest and most accurate way possible. Its measurement indicators are overshoot and delay.
The servo system is an automatic control system that enables the output controlled quantity of the object such as the position, orientation and state to follow the arbitrary change of the input target (or given value).
The main task of the servo is to amplify, transform and adjust the power according to the requirements of the control command, so that the torque, speed and position control output by the drive device are very flexible and convenient.as more information ,please visit : www.nickbaler.net
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