Rotary oil cylinders, also known as swing oil cylinders and swing motors, are a classification of oil cylinders, commonly known as "swing motors" and "rotary oil cylinders", which mainly include three types of structure: rack and pinion, blade, and spiral. See the following table for specific characteristics:
Classification of swing cylinder
Principle and working characteristics
Rack and pinion
The linear oil cylinder drives the rack to reciprocate, thereby realizing the swing of the gear meshing with the rack.
It is suitable for transmitting large torque, simple installation, convenient use and low price.
It has a large size and takes up more space.
The blades are arranged radially, and the hydraulic oil acts on the blades to finally realize the rotation of the drive shaft.
The moment of inertia is small, the action is sensitive, and the rotation uniformity is small.
The biggest weakness is that the leakage is large, can not work at very low speed, and the mechanical characteristics are soft (that is, the speed will decrease rapidly when the load increases).
Through the internal spiral of the shell and the external spiral of the spline sleeve, the internal spiral of the spline sleeve and the external spiral of the output shaft (flange), the relative movement between the two pairs of spiral pairs realizes the shaft (flange) output. Spin.
Compact structure, accurate swing angle and high reliability. Extremely smooth operation for extremely low speeds.
The processing is difficult and the cost is high.
Weihai Kate Hydraulic Technology Co., Ltd. Address: Dongjing Road, Huancui District, Weihai City, Shandong Province Contact: Wang Hongyi Mobile: 13156089310
Main products: swing cylinder, rotary cylinder