Device working principle is introduced

Device working principle is introduced: the ratchet wheel and pawl device belongs to ratchet stop the ratchet wheel and pawl, commonly used to prevent reversal system inverse as a mechanical device or for intermittent transmission.
Is one of the important component parts of chain blocks the ratchet wheel and pawl, some chain adopts single ratchet and pawl, others with double ratchet pawl, double double contrast in braking the ratchet wheel and pawl will be more safe.
Pawl upon ratchet SHH electric chain hoist intermittent movement of the parts. Pawl driven by connecting rod to do reciprocating motion, thus promote ratchet do one-way movement. Unidirectional movement to stuck ratchet, let the ratchet, reverse lock structure parts
Brake in crane operation mechanism, rotating mechanism and luffing mechanism, can make these wire rope electric hoist institutions to the desired accurately and reliably stop position. If installed in the lifting mechanism, in addition to load in a state of brake role, also can adjust rate of descent.
Brake according to the way of action points closed and open; According to the structure of the block type and belt type; According to the transmission points of mechanical drive, hydraulic drive and electric. In general, often closed double block block brake is more common in the crane. And manual hoist general friction ratchet type one-way brake, can brake under load, very convenient.
Brake lifting equipment is one of the important parts, rival chain also is so, its main function is to make the moving parts (mechanical) slow down, stop or keep the status, and other functions of a device