The screw drive mechanism is consists of nut screw drive, ball screw drive and planetary roller screw drive and so on. Ball screw is currently one of the most commonly used transmission elements of the electric cylinder, its main function is to convert rotary motion into linear motion, or torque into axial repetitive force, both high precision, reversibility and high efficiency.
Since many balls are rolling between the ball screw shaft and the ball screw nut of the ball screw sub, the electric cylinder with ball screw can get high motion efficiency.
2. Reduction mechanism
Electric cylinder deceleration mechanism can be synchronous belt, planetary gear reducer and harmonic gear reducer and so on.
Synchronous belt drive is mostly used in folding electric cylinder. Synchronous belt drive has the advantages of accurate transmission, constant transmission ratio and smooth transmission.
Planetary gear transmission is a gear transmission that makes the axis of one or more planetary wheels rotate around the fixed axis of the central wheel. Planetary gearing has the advantages of small size, light weight and high load carrying capacity.
Harmonic gear transmission has the advantages of simple structure, small size, large load carrying capacity, wide range of transmission ratio, high motion accuracy, small and uniform wear of tooth surface.
3.Control system
The core components for the servo motor, electric cylinder system using the servo motor closed-loop control characteristics,
The combination of this technology and computer control technology can achieve high-precision dynamic closed-loop control of servo electric cylinder actuator displacement, speed, thrust, acceleration, providing a technical basis for servo electric cylinder control.
The use of modern motion control technology, numerical control technology and network technology to achieve programmed, networked and intelligent control.
Servo control mainly solves the position control problem, requiring the system to have the ability to accurately track the position instruction. For the servo system, the position instruction is a random variable, and the system must have good following performance to accurately track changes in the given position and ensure that the electric cylinder actuator accurately tracks the given instruction.
