Brake device for winch and winch

The winch comprises a rope drum, the brake device comprises a brake sleeve, an elastic ring, a torsion spring and a brake assembly, the brake assembly is sleeved with the torsion spring, the brake sleeve is arranged on the torsion spring in a sleeving mode, and the elastic ring is arranged on the brake sleeve. The brake assembly is used for driving the torsional spring to move between the tensioning position and the retracting position so as to lock and release the brake sleeve, and the elastic ring is arranged on the periphery of the brake sleeve in a sleeving mode and suitable for abutting against the inner wall of the rope drum. The brake device for the winch is low in noise and good in using effect. 本实用新型涉及一种用于绞盘的刹车装置和绞盘，所述绞盘包括绳筒，所述刹车装置包括刹车套、弹性圈、扭簧和制动组件，所述扭簧套设在所述制动组件上，所述刹车套套设在所述扭簧上，所述制动组件用于驱动所述扭簧在涨紧位置和收缩位置之间移动，以锁紧和释放所述刹车套，所述弹性圈套设在所述刹车套的外周且适于与所述绳筒内壁抵接。本实用新型的用于绞盘的刹车装置的噪音较低，使用效果较好。