Sweeping device of sweeping car

Abstract

The invention discloses a sweeping device of a sweeping car. The sweeping device of the sweeping car consists of a bracket, a parallel four-bar mechanism, an elevating hydraulic cylinder, a sweeping disk and a hydraulic motor, wherein the inner end of the bracket is arranged on a chassis of the sweeping car while the outer end is connected with a front seat of the parallel four-bar mechanism through a hinge; the elevating hydraulic cylinder is arranged on the lower part of on inner side of the front seat of the parallel four-bar mechanism, and a piston rod of the elevating hydraulic cylinder is connected with the back part of an upper connecting rod through a hinge; the hydraulic motor is arranged on a back seat of the parallel four-bar mechanism; and the sweeping disk is arranged on the hydraulic motor. The sweeping device of the sweeping car further comprises a spring and an inhaul cable, wherein one end of the spring is arranged on the front seat of the parallel four-bar mechanism while the other end is arranged on the bracket; and one end of the inhaul cable is arranged on the back seat of the parallel four-bar mechanism while the other end is arranged on the bracket. The sweeping device for the sweeping car not only has a simple structure, but also prevents the sweeping disk from being collided with and damaged by obstacles.

Description

Technical field [0001] The invention relates to a road sweeper, in particular to a sweeping device of the road sweeper. Background technique [0002] Existing road sweeper brush sweeping device is usually made of support, parallel four-bar mechanism, lifting hydraulic cylinder, horizontal hydraulic cylinder, sweeping brush plate and hydraulic motor. The parallel four-bar mechanism is composed of a front seat, a rear seat, an upper link and a lower link. The front seat and the rear seat are parallel to each other, and the upper link and the lower link are parallel to each other. The inner upper part and inner lower part of the rear seat form a hinged connection. The inner end of the bracket is arranged on the chassis of the road sweeper, and the outer end forms a hinge connection with the front seat of the parallel four-bar mechanism. The horizontal hydraulic cylinder is arranged on the chassis, and its piston rod forms a hinge connection with the front seat of the parallel...

AI Technical Summary

Problems solved by technology

Because the parallel four-bar mechanism is controlled by two hydraulic cylinders during the road sweeping operation, the structure of the sweeping device becomes complicated; at the same time, because the rear seat of the parallel four-bar mechanism is always controlled by a horizontal hydraulic cylinder when it is located on the outside, Therefore, when the brush plate encounters an obstacle, the rear end of the parallel four-bar mechanism cannot turn to the inside to avoid the obstacle, which makes the brush plate easily damaged by the obstacle

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