This invention discloses a design method and device for a wheat field weeding
actuator based on an operational
power consumption model. The weeding
actuator includes a rotary blade and a roller, with multiple rotary blades connected to the roller. The initial position is taken as the tip of the rotary blade contacting the soil. The entire weeding process is divided into four working conditions: contacting the soil,
cutting the soil, chopping the grass, and lifting the soil. The rotary blade weeding
actuator then employs a
power consumption model during operation: W = ∑ i 1(W1+W2+W3+W4); The wheat field weeding device mainly consists of a rotary blade, rollers, a
drive motor, a controller, and auxiliary mechanisms. The actuator of this invention uses a weeding wheel structure. By analyzing the
robot-soil-
weed interaction during wheat field weeding, a
power consumption model of the rotary blade weeding
robot actuator is constructed, and the structural parameters with the lowest power consumption during operation are determined. This not only results in a wide working area, low operating resistance, and high weeding efficiency, but also effectively solves the problem of high
seedling damage rate when weeding crops with small row spacing.