ELECTROMECHANICAL DEVICE FOR ADJUSTING GAP BETWEEN SIEVE COMBS Russian patent published in 2024 - IPC A01F12/44 A01D41/12 B07B13/18 

FIELD: machine building; agriculture.

SUBSTANCE: invention relates to agricultural machine building and can be used for cleaning and adjustment of louvered screens of a combine harvester and a grain cleaning machine. Device is built into sieve frame installed in machine housing with possibility of oscillating movements by means of drive oscillating mechanism and suspensions, and comprises an adjustment rod connected by one end with an adjustment rack. Other end of the adjustment rod is provided with a screw thread. On the frame there is an electric motor which can be made in the form of a stepper motor or a geared motor. On the shaft of the electric motor there is a driving element of the drive, designed to transmit torque to the driven element of the drive, which is connected by a screw thread with an adjustment rod and one end contacting with compression spring installed on adjusting rod. Other end of the driven element of the drive contacts the frame and contains a damper installed with a gap and with possibility of contact with a baffle installed on the machine housing. Compression spring by its other end contacts with stop rigidly installed on frame.

EFFECT: invention provides adjustment of the gap between the sieve combs and cleaning of the sieve from the grain heap particles stuck in the gap between the combs.

1 cl, 2 dwg