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公开(公告)号:US4696377A
公开(公告)日:1987-09-29
申请号:US781400
申请日:1985-09-27
CPC分类号: F16D55/2245 , B66D5/14 , B66D5/26 , E21B19/008 , F16D2121/12
摘要: A brake system for a drawworks includes a hydraulically actuated band brake system having a backup spring actuator for emergency stops. The system also includes a caliper disc brake system for emergency stops. The disc brake system includes a rotor directly mounted to the drum barrel and a pair of spring actuated caliper assemblies.
摘要翻译: 用于绞车的制动系统包括具有用于紧急停止的备用弹簧致动器的液压致动带式制动系统。 该系统还包括用于紧急停止的卡钳式盘式制动系统。 盘式制动系统包括直接安装到鼓筒的转子和一对弹簧致动的卡钳组件。