Abstract:
In order to
raise the tractive efficiency of a boat-type tractor further,
according to a point of view about reducing energy consumption
by reducing the volume of the blade cavity, and idea of
four-footed walking boat-type tractor is put forward, and a
walking device with two feet and four small wheels is designed
and manufactured. It can move on the rails of a paddy soil bin
to simulate the tractive performance of a boat-type tractor in
the paddy field. Kinematics and dynamics of the walking device
is analysed. Because it can ensure that the blade foot enters
and leaves the soil vertically, and eliminates the functions of
the soil compression and pick by the blade entirely, so the
volume of the blade cavity can be reduced to a minimum and the
efficiency of the walking system has been raised considerably.
Thus, it is feasible to adopt a four-footed walking mechanism in
the boat-type tractor.
Key words:
Boat-type tractor Walking machine Elasto-viscoplasticity Finite element analysis
Manuscript received on June
26, 1995; revised manuscript February 1, 1996
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