Chain by pulling to move the chain

Chain by pulling to move the chain, manual hoist wheel rotation, the friction slice ratchet wheel, brake pressure into one common rotation, short and long axis rotation piece of gear, the tooth axis and the spline gear. So perfectly on the spline gear lifting chain wheel drives the lifting chain, thus hoist equipment promote weight. Unilateral brake friction ratchet type, can self braking under load, ratchet in spring and ratchet gearing, under the action of the brake safety work.