What Is a Zip Chain Actuator?
A zip chain actuator is an innovative actuator that operates using a unique linear motion mechanism called a zip chain. This mechanism involves two chain-like structures pressed against each other, engaging like a zipper on clothing, which allows for linear motion perpendicular to the pressing force.
Applications of Zip Chain Actuators
Zip chain actuators are advantageous for their compact design, high-speed operation (up to 1000 mm/sec), and the ability to stop at any point along their stroke. They are ideal in situations requiring large strokes within limited spaces, such as in lifters or dollies that need rapid, precise movement and variable stopping positions. These actuators can be installed in any direction, accommodating both lifting and lowering actions.
Principle of Zip Chain Actuator
The zip chain actuator comprises two interlocking chains, a tip bracket, a chain housing, and a gear and shaft setup for power transmission. The chains interlock at the tip through metal fittings, and as they are fed out of the housing, they form a single, sturdy chain structure. This design allows for compact storage relative to the actuator’s stroke length.
The drive transmission unit, featuring a gear fixed to a rotating shaft, offers superior positioning accuracy compared to pneumatic cylinders. With motor-driven operation, the reduction ratio can be externally adjusted, facilitating complex feedback control and high-speed linear motion.