TRANSMISSION SCREW-NUT SLIDING Russian patent published in 2023 - IPC F16H25/20 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to the field of mechanical engineering and is intended for use in feed mechanisms. The sliding screw-nut transmission consists of a hydraulic tank, throttles, a hydraulic pump and an overflow valve connected to the outlet channel of the latter and the hydraulic tank. It contains a screw with an external trapezoidal thread and a nut covering it with a similar internal thread. Pockets are made on the side surfaces of the nut, connected through throttles to the oil supply channel from the pump. The transmission is equipped with an adjustable additional throttle included in the oil drain channel and a multiplier gearbox. The hydraulic pump is gear reversible, and the propeller is kinematically connected to its drive shaft through a gear-multiplier. The transmission is additionally equipped with a three-input block for multiplying voltage signals. The additional throttle is electrically controlled and its control input is connected to the output of the multiplication unit.

EFFECT: increase in durability is achieved.

1 cl, 1 dwg