Gear rack, synchronous belt, lead screw, three kinds of transmission way in detail and their advantages and disadvantages, thank you ~!
Screw, (1) ordinary trapezoidal screw can self lock, this is the biggest advantage, but the transmission efficiency is low, lower than the above two, so it is not suitable for high-speed reciprocating drive. The disadvantage is long time, large transmission gap, poor return accuracy, used in vertical transmission more appropriate.(2) the ball screw can not lock, high transmission efficiency, high precision, low noise, high speed and transmission, but the level of transmission span to limit speed and weight drop deformation, so the transmission length should not be too big, or a change to the screw rotation screw does not move, but still can not be too long, or with the gear rack. Typical use: CNC machine tools, small layout CNC cutting machine
Synchronous belt, large bearing capacity, load and then to widen transmission belt, high precision, transmission length should not be too big, otherwise need elastic deformation and vibration, long driving distance especially for precise positioning, continuous motion control, XY axis CNC equipment such as large layout, but can be used for servo motor the transmission gear or the servo motor to the short distance driving screw. Advantages: short distance drive, high speed, low noise. Typical applications: small CNC equipment, certain printers
Rack and pinion, synchronous belt, lead screw contrastRack and pinion, bearing capacity, high transmission accuracy, up to 0.1mm, unlimited length of docking continuity, transmission speed can be very high, >2m/s, shortcomings: if the processing and installation accuracy is poor, large noise transmission, wear and tear. Typical applications: large plate, glass CNC cutting machine, construction lift up to 30 storeys high.
