The invention relates to the technical field of crane lifting devices, in particular to a crane lifting device, a crane pulley beam and a crane, the crane lifting device comprises a support, the support is provided with a motor, and the motor is used for driving the whole lifting device to operate; the lifting assembly comprises a winding drum, a steel wire rope and a lifting hook; the transmission assembly is used for transmitting power of the motor to the winding drum; the brake assembly is used for locking and braking the winding drum when the transmission failure of the transmission assembly is detected; when the speed of the second transmission shaft is detected to be abnormal, the winding drum braking mechanism can be automatically started to forcibly brake and lock the winding drum, so that a lifting hook and a lifted object can be effectively prevented from falling off after an internal gear of the speed reducer is broken, and personnel are prevented from being injured by crashing; and meanwhile, the winding drum is locked after braking, so that secondary falling of the lifting hook and a lifted object can be prevented, and the safety of workers in the maintenance process is guaranteed.
本发明涉及起重机起升装置技术领域,尤其为起重机起升装置、起重机滑轮梁及起重机,其中起重机起升装置包括:支架,支架设置有电动机,电动机用于驱动整个起升装置的运行;起吊组件,起吊组件包括卷筒、钢丝绳和吊钩;传动组件,传动组件用于将电动机的动力传递到卷筒;制动组件,制动组件用于在检测到传动组件传动失效时将卷筒进行锁死制动;本发明在检测出传动轴二的速度异常时,会自动启动卷筒制动机构对卷筒进行强制制动并锁死,可以有效地防止减速器内部齿轮断裂后吊钩和吊起物的坠落从而而避免人员砸伤,同时在制动后将卷筒锁死可以防止吊钩和吊起物出现二次坠落,保证了工作人员在维修过程中的安全性。
Crane lifting device, crane pulley beam and crane
起重机起升装置、起重机滑轮梁及起重机
2023-09-08
Patent
Elektronische Ressource
Chinesisch
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