Land leveler scraping working device based on rotary translation mechanism

Abstract

The invention discloses a land leveler scraping working device based on a rotary translation mechanism. The land leveler scraping working device comprises a machine frame, a first rotary table, a translation mechanism, a second rotary table and a scraper knife mechanism, the first rotary table is installed on the machine frame through a rotary pair and can rotate relative to the machine frame, the translation mechanism is a planar double-connecting-rod four-rod mechanism and forms a parallelogram structure, the translation mechanism comprises a longitudinal beam, a first connecting rod, a second connecting rod and a movable platform, the longitudinal beam is fixedly installed on the first rotary table, the two ends of the first connecting rod and the second connecting rod are connected with the longitudinal beam and the movable platform, and the movable platform can translate relative to the first rotary table under the driving action of a first linear driver; the second rotary table is mounted on the movable platform through a revolute pair and can rotate relative to the movable platform; the scraper knife mechanism can realize lateral movement and rotation of a scraper knife. According to the land leveler scraping working device, six-degree-of-freedom movement of the scraper knife can be achieved during operation, and compared with an existing land leveler, the land leveler scraping working device is good in flexibility, low in movement coupling degree, free of spherical hinges and better in rigidity and stability.

Description

technical field [0001] The invention relates to a grader in the field of shoveling and transporting machinery, in particular to a soil scraping working device of the grader based on a rotary translation mechanism. Background technique [0002] The grader is a kind of shoveling and transporting machine used for large-area land leveling or shaping, slope filling or cutting and scraping, and ice-breaking and snow-removing operations in winter. It is used in infrastructure construction such as road engineering, agricultural engineering, water conservancy engineering, and national defense engineering. Special machinery for earthwork shaping construction. Among them, the soil scraping device is the most important working device of the motor grader, which is mainly composed of the front frame, swing frame, traction frame, and blade device; in order to meet the leveling or shaping of the land, the soil scraping device needs to accurately realize the six degrees of freedom of the bla...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a soil scraping working device of a grader based on a rotary translation mechanism, which overcomes the high coupling degree of the existing soil scraping working device of the grader, the difficulty of high-precision motion control, the poor flexibility of the blade, and the small movement space, etc. problems, to meet the requirements of high precision, high flexibility, and large working space for land leveling or shaping operations

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