Studies on the mounting methods of the tillage implements on the tractors (I)

Abstract

The mounting methods of the tillage implements to the garden tractor and power tiller, such as fixed mounting, swing plow and hitching with flexible system, are studied mainly concerned to the traction and stability. The weight transfer of garden tractor with fixed mounting, is shown in Fig 2. To increase the traction, in case of the bihind mounting, l, a and R_L make smaller; and W, R_V larger. (Fig 1). The power tiller is a special case of the mfixed ounting. Wit hthe rotation of the tins R varies cyclicly, therefor, the weight transfer varies with some frequency; when R increases, D or the torque of the drive wheel decreases, and the power consumption isuniformlized (Fig 3). On the swing plow, the vertical landside force varies itself and makes the plow stable. If the hitch is located forward of the drive wheel axis, the traction sta bility is positive. With the flexible system hitching, the plow rappidly reaches its max. depth. and the stabilities of the traction and the depth are fairly good.