The mechanical installation of absolute rotary encoder has many forms such as high-speed end installation, low-speed end installation, and auxiliary mechanical device installation.
High-speed end installation: Installed on the shaft end of the power motor (or gear connection). The advantage of this method is high resolution. Since the multi-turn encoder has revolutions, the number of motor revolutions is within this range, which can be increased by fully using the full range Resolution, the disadvantage is that after the moving object passes the reduction gear, there is a gear gap error in the back and forth. It is generally used for one-way high-precision control and positioning, such as roll gap control in steel rolling. In addition, the encoder is directly installed on the high-speed end, and the motor jitter must be small, otherwise the encoder is easily damaged.
Installation at the low speed end: installed after the reduction gear, such as the shaft end of the winding wire rope drum or the shaft end of the last reduction gear, this method has no gear back and forth clearance, the measurement is more direct, and the accuracy is higher. This method generally measures the length Distance positioning, such as various lifting equipment, feeding trolley positioning, etc.
Auxiliary machinery installation: commonly used gears and racks, chain belts, friction wheels, rope winding machinery, etc.