The application relates to the technical field of crane hoisting devices, in particular to a crane hoisting device, a crane
pulley beam and a crane, wherein the crane hoisting device comprises a support, the support is provided with a motor, the motor is used for driving the operation of the whole hoisting device; a hoisting
assembly, the hoisting
assembly comprises a winding drum, a steel
wire rope and a lifting hook; a transmission
assembly, the transmission assembly is used for transmitting the power of the motor to the winding drum; and a
brake assembly, the
brake assembly is used for locking and braking the winding drum when detecting that the transmission assembly fails to drive; when the speed of the transmission shaft II is detected to be abnormal, the winding
drum brake mechanism is automatically started to forcibly
brake and lock the winding drum, the falling of the lifting hook and the hoisted object after the gear in the speed
reducer is broken can be effectively prevented, personnel can be prevented from being injured, the winding drum is locked after braking, the second falling of the lifting hook and the hoisted object can be prevented, and the safety of the workers in the maintenance process is ensured.