Design of Walking Stepless Speed System for Caterpillar Feeding Combined Harvester

Abstract

Hydro mechanical stepless speed system is a new conbination system of hydraulic transmission and mechanical transmission, which realizes the stepless speed change through the hydraulic transmission and the mechanical transmission to reduce the speed and torque, and to improve transmission efficiency; through optimizing design, The system can realize the differential steering, increase ground clearance. In this paper, the caterpillar feeding combined harvester is the object, the system is composed by the motor, a variable pump single stage planetary gear, hydraulic machinery stepless speed walking system is of wide speed range, simple structure.