Bulldozer definition and classification
Definition
Bulldozer is an earth-moving machine capable of excavating, transporting and dumping rock and soil, which is widely used in open-pit mines. For example, it is used to build waste dump, level car waste dump, stack scattered ores and rocks, level working platform and construction site, etc. It is not only used for auxiliary work, but also for main mining work. For example, the stripping and mining of placers, the traction and propulsion of scrapers and rock ploughs, and the cooperation with other earth-moving machinery to reduce the height of stripping steps without transportation and mining methods.
Classification
Walking mode
Bulldozers can be divided into crawler type bulldozers and tire type bulldozers. Track-type bulldozers have large tractive force, low specific pressure to the ground (0.04-0.13MPa), strong climbing ability, but low driving speed. Wheel bulldozers are characterized by high driving speed, flexible mobility, short operation cycle, convenient transportation and transfer, and low traction, and are suitable for frequent replacement at site and site work
By purpose
It can be divided into general type and special type. The general model is a model produced according to the standard and widely used in earth-rock engineering. Special types are applicable to specific working conditions, including wetland bulldozers and swamp bulldozers, amphibious bulldozers, underwater bulldozers, cabin bulldozers, unmanned bulldozers, plateau bulldozers and bulldozers operating under high humidity working conditions.
