| 摘要 |
A braking device for a power winch includes a reduction box installed inside with a sectional shaft, an elastic member, a fixing base, a braking lining, a first engraved block, a second engraved block and a clutch base. The fixing base is fixed in the accommodating hollow of the reduction box. The braking lining is an independent component composed of at least two blocks integrated to form a ring-shaped braking lining assembled in the accommodating hollow and positioned abutting the inner edge of the accommodating hollow, the fixing base and the first engraved block, having a small gap formed between them. Only when the motor stops operating and the power winch performs braking, will the braking lining produce friction with the inner edge of the accommodating hollow, the fixing base and the first engraved block, able to prolong service life and facilitate replacing of the braking lining.
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