Lifting device for movable platform vehicle

Abstract

The invention relates to a lifting device for a movable platform vehicle. The lifting device comprises two supporting frame assemblies symmetrically arranged on the two sides of a vehicle body, each supporting frame assembly comprises a supporting column and a supporting beam, the two supporting columns are vertically and fixedly installed on a flat plate of the vehicle body, and the supporting beams are installed between the tops of the two supporting columns. A duplex lifting pulley block is arranged between the two supporting frame assemblies, the duplex lifting pulley block is used for lifting and synchronous dynamic supporting of a lifting platform, and a duplex double-rotation-direction winch is installed on the flat plate of the vehicle body and located between the two supporting frame assemblies. The duplex double-rotation-direction winch and the duplex lifting pulley block are connected through a flexible cable, and the duplex double-rotation-direction winch provides a power source for the lifting device. By means of the combined scheme that the duplex lifting pulley block and the duplex double-rotation-direction winch are arranged on the vehicle body, the flexible cable pulling force is reduced, and the braking effect is improved.

Description

technical field [0001] The invention relates to the technical field of mobile station trolleys, in particular to a lifting device for mobile station trolleys. Background technique [0002] The existing lifting device of the mobile station trolley usually adopts a lifting mechanism with a fixed pulley block and a wire rope to carry out the lifting operation of the loading and unloading platform, but the loading and unloading platform of the mobile station trolley is long in length and heavy in weight, and is only driven by the lifting motor, reducer and transmission device. There are the following technical defects when fixing the pulley block and directly pulling the wire ropes fixed on both sides of the loading and unloading platform for lifting operations: on the one hand, the unfavorable consequences of deformation or even breakage of the rope are likely to occur due to the large tensile force of the steel wire rope; on the other hand, due to the heavy weight of the loadin...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problems of the existing mobile platform trolleys, such as the large tension of the lifting wire rope and the poor braking effect of the lifting motor and the speed reducer when the loading and unloading platform is lifted or lowered, the present invention provides a mobile platform trolley lifting device, which includes symmetrically arranged on the trolley Two support frame assemblies on both sides of the body, the support frame assembly includes support columns and support beams, the two support columns are vertically fixed on the flat plate of the vehicle body, and the tops of the two support columns are installed There is the support beam, and a double lifting pulley block is arranged between the two supporting frame components, and the double lifting pulley block is used for lifting and synchronous dynamic support of the lifting platform, and all the lifting pulley blocks between the two supporting frame components The flat plate of the car body is equipped with a double-connected double-rotation winch, which is connected with the double-lift pulley block through flexible cables, and the double-connection double-rotation winch is the double lift Pulley block provides power source

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