Bulldozer is a major mechanical earthmoving machinery, according to the walk is divided into two kinds of crawler and tires, because less tire bulldozer. This paper describes the structure and working principle of Bulldozer. The basic job of a bulldozer excavation is: A. B. earth C. shoveling dump.
Power greater than 120KW crawler dozer, the vast majority use hydraulic - mechanical transmission. Such Hydraulic Drive Crawler Bulldozers from the introduction of Japan's Komatsu D155 type, D85 type, D65 type three basic hydraulic dozer suppliers technology. After localization, stereotyped as TY320 type, TY220 type, TY160 type Basic track bulldozer suppliers.