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船壳不但是水田作业机耕船的主要部件,同时又为可调节驱动轮入土深度提供了有利条件。实践证明,当机耕船进行水田作业时,为使其滚动阻力控制在最小范围内和机耕船处在最佳技术状态,要求驱动轮入土深度能随所需牵引力的变化而进行调节。这样,机耕船的动力性和经济性都会得到显著的改善。一般说,在同一工况下,如驱动轮入土深度过深,发动机功率多消耗20～40％;入土深度过浅,又将增加机耕船的打滑次数,甚至不能正常作业。
The hull is not only a major component of the paddy field working machine, but also provides favorable conditions for adjusting the depth of the driving wheel. Practice has proved that when the tillage plowing paddy field operations, in order to minimize the rolling resistance control and tug boat at the best technical conditions require the depth of the drive wheel into the soil can be adjusted with the desired traction changes. In this way, the power and economy of the tractor will be significantly improved. In general, under the same conditions, such as driving wheel deep into the soil, the engine power consumption of 20 to 40% more; too shallow depth of soil, will increase the number of machine-driven slipping, or even normal operation.