Is it difficult to use a hand capstan? I'm going to lift from 150 to 6 floor from the 1 floor. Can the adult man shake it?
With gear or worm gear reducer, this structure can easily lift tons of objects, but the lifting speed may be very slow. The structure of 2, 3 and 4 should be shaken by adults. First kinds of structures, such as unreasonable design (such as rocker drum is too short, too thick) for lighter weight, arm general adults, can not shake.
There is a fixed pulley and a moving pulley, which is less than half of the first theoretical effort; 3, a number of fixed pulley and moving pulley combination, or differential pulley to be more labor-saving; 2, 3, two kinds of lifting speed is relatively slow;
Capstan has many kinds of structure, only 1, a rocker arm and a fixed pulley; the structure can change direction, mainly depends on the length and diameter of the rocker drum ratio (ratio of torque and distance) to achieve the purpose of saving labor, enhance the advantages of fast speed, such as rural wells with pulley;
