The invention relates to a
combine harvester cleaning
sieve inclination angle automatically regulating device. The
combine harvester cleaning
sieve inclination angle automatically regulating device comprises a linear sliding table, a
servo motor cleaning
sieve, an inclination angle sensor device, a
control system and the like, wherein the inclination angle sensor is installed at the
tail part of the cleaning sieve, the linear sliding table is arranged in the vertical direction, a roller guide rail plate is installed at a working slide block of the linear sliding table, under the drive of a
servo motor, the working slide block is driven to conduct motion, the roller guide rail is further driven to conduct motion, and thus the purpose that the inclination angle of the cleaning sieve can be adjusted is achieved. According to the
combine harvester cleaning sieve inclination angle automatically regulating device, under the
joint action of the inclination angle sensor, the
control system, and the linear sliding table, real-time regulation of the inclination angle of the cleaning sieve can be achieved, the cleaning sieve can be adapted to harvesting conditions in croplands especially in hill zones in which terrains fluctuate up and down, and the cleaning sieve can be adapted to regulation of differences in respective optimum inclination angles of various crops. The normal work of the cleaning sieve surface can be guaranteed; the combine harvester cleaning sieve inclination angle automatically regulating device is beneficial to increasing of cleaning efficiency and complete
machine efficiency; the combine harvester cleaning sieve inclination angle automatically regulating device has a wide theorectical significance and application prospect.