The invention belongs to the technical field of pulley blocks for hoisting machinery and particularly relates to a pulley block for conversion of movable pulleys and fixed pulleys. The pulley block comprises a controller, an operation motor, a fixed pulley frame and a movable pulley frame; the controller is used for controlling the operation motor to work; the operation motor is used for controlling a cable; the fixed pulleys are symmetrically arranged on two sides of the lower end of the fixed pulley frame, the movable pulleys are symmetrically arranged on two sides of the movable pulley frame, a cylinder is fixedly arranged in the middle of the lower end face of the fixed pulley frame, contraction grooves are uniformly formed in the circumference of the inner wall of the cylinder, a fixture block is embedded into each contraction groove, and first limit grooves which are uniformly distributed are formed in the surface of a fixed pin; the first limit grooves are in an inverted trapezoidal design; second limit grooves which are uniformly distributed are formed in the surface of the fixed pin; and the second limit grooves are designed in an inclined mode; and when the movable pulleys are converted into the fixed pulleys for use, the fixed pulleys and the movable pulleys do not need to be disassembled or assembled manually, and the disassembly and the assembly are quick and convenient.
本发明属于起重机械用滑轮组技术领域,具体的说是一种动、定滑轮转换的滑轮组,包括控制器、操作电机、定滑轮架和动滑轮架;所述控制器用于控制操作电机工作;所述操作电机用于控制缆绳;所述定滑轮架下端两侧对称设置有所述定滑轮,所述动滑轮架两侧对称设置有动滑轮,所述定滑轮架下端面中部固定设置有圆筒,所述圆筒内壁圆周均匀开设有收缩槽,每个所述收缩槽内均嵌入设置有卡块,所述固定销表面开设有均匀布置的第一限位槽;所述第一限位槽倒梯形设计;所述固定销表面开设有均匀布置的第二限位槽;所述第二限位槽倾斜设计;本发明动在滑轮转换成定滑轮使用时,无需人力将定滑轮与动滑轮拆卸或安装,且拆卸安装快捷方便。
Pulley block for conversion of movable pulleys and fixed pulleys
一种动、定滑轮转换的滑轮组
2020-08-14
Patent
Electronic Resource
Chinese
IPC: | B66D Haspeln , CAPSTANS |
SAE Technical Papers | 2019
SAE Technical Papers | 1978
Engineering Index Backfile | 1946