Hydraulic stepless telescopic mechanism of ironing board of paver

Abstract

The invention discloses a hydraulic stepless telescopic mechanism of an ironing board of a paver, belonging to the field of telescopic mechanisms of ironing boards. The mechanism comprises a first support rod, a second support rod, a third support rod, a fourth support rod, a host section, a telescopic section, a middle part and a hydraulic oil cylinder, wherein the hydraulic oil cylinder is mounted on a right board of the host section; a piston rod of the hydraulic oil cylinder is fixed on a left baffle of the telescopic section; the first support rod and the second support rod are fixedly mounted on the telescopic section and can slide on the middle part; and the third support rod and the fourth support rod are fixedly mounted on the middle part and can slide on the host section. The hydraulic stepless telescopic mechanism disclosed by the invention has the beneficial effects that: the stretching and retracting of the ironing board are realized by use of four support rods and the hydraulic oil cylinder; the mechanism is convenient to operate, has simple structure and good rigidity, does not deform easily or need a pull rod, can conveniently adjust the stretching / retracting length automatically according to the user needs, and can be used for paving the road surfaces of various widths.

Description

technical field [0001] The invention relates to a hydraulic stepless telescopic mechanism of a paver screed, which belongs to the field of screed telescopic mechanisms. Background technique [0002] The main function of the screed of the road paver is to ensure that the flatness and compactness of the road surface can meet the construction requirements during road construction. Most of the screeds of the existing pavement paver are hydraulic extension structures. And the screed of this structure mainly includes two support rods, hydraulic cylinder and pull rod, when using, after the screed expands and contracts, need manually pull the rod to make the screed return to normal state, troublesome to operate, waste manpower resources. In addition, this structure is generally suitable for small-width models. When paving large-width roads, the rigidity of the screed is obviously insufficient, and the smoothness of the road surface cannot be guaranteed. Contents of the invention ...

AI Technical Summary

Problems solved by technology

The screed with this structure mainly includes two support rods, a hydraulic cylinder and a pull rod. When in use, after the screed expands and contracts, it is necessary to manually pull the rod to restore the screed to its normal state, which is cumbersome to operate and wastes human resources.

In addition, this structure is generally suitable for small-width models. When paving large-width roads, the rigidity of the screed is obviously insufficient, and the smoothness of the road surface cannot be guaranteed.

Images