2015年4月3日星期五

Bulldozer is a simple structure of self-propelled shovel transport machinery. It has a flexible operation, extensive easy to use, application, adaptable and other advantages. Bulldozers are designed in the past, mainly used in construction, mining, road transportation, national defense construction and other construction, can be spread compression and leveling the ground, filling trenches, the accumulation of dirt, gravel and other loose material number operations. Now bulldozers have been used for water conservancy construction.

  Agricultural tractors, are mounted in front of the farm tractor dozer and enhance control mechanism, a tractor with a power shovel cut and pushing soil, gravel and so on. It is mainly used for agricultural engineering land formation, terracing, land reclamation, land reclamation, trenching dig trenches, accumulated dirt and paving and other operations. Strong adaptability of its terrain, you can work on the cross slope 15 ° -20 ° slope; dozer placed in front of the tractor, dozer direction consistent with the tractor forward direction, when the job is open on their own, in potholes or uneven ground Set launder more irregular mountain ravines dozing, still full operating performance, economic haul distance of 20-30 meters, a significant decline in productivity when more than 50 meters.

  Therefore, the process is one of the most important agricultural earthwork construction work tools. Bulldozer drawback is that the deposited amount before the dozer can not be too small economical transportation distance.

  Bulldozer economic haul tractor power size varies with the commonly used dozer economic haul: Large (200 hp) of 50-70 meters, medium (50-100 hp) of 20-30 meters, a small (50 hp ) 10-20 m. If the transport distance over 80 meters, you should use other earth-moving machinery (such as scrapers, etc.) to carry out.

  Our project began production in the early 1950s with a bulldozer. Currently, the project has been developed with a bulldozer to two dozen, they are equipped with power more than 100 horsepower, with crawler majority. Four wheel drive and marshes dedicated bulldozers, underwater bulldozers also began production.

  Our agricultural bulldozer began production in the early sixties, the larger are transplanted from construction machinery, small bulldozer with existing crawler or wheeled tractors for power and self-supporting design made Mi device. At present, agricultural bulldozer minimum power of 20 hp and a maximum power of 160 horsepower.

  Arrangements for agricultural production around the country for more than ten kinds of models bulldozer and are further expanding varieties, models and improve operational performance. In recent years, people around the self-reliance, big way agricultural mechanization, agricultural tractors doubled, increasing the range of mechanical work. In order to achieve mechanized farmland capital construction, not only dedicated agricultural bulldozer gradually increased, and in the provinces unified arrangement of crawler tractors gradually configured single cylinder, twin hydraulic dozer device. Currently, the bulldozer has played a major role in agricultural production.

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