关键词: 圆捆机, 压捆室, 可变直径, 秸秆, 卷捆机理, 运动仿真

Abstract: Aiming at the problem of single diameter of round bale formed by traditional straw baling machine when harvesting crop straw, a variable round bale baling machine was designed, which was composed of pickingup mechanism, feeding mechanism, baling mechanism and straw bale unloading device. A threedimensional model of the variable baling chamber round baler was established in Solidworks, its working principle and the structural design of key components were briefly described, and the power transmission system of the whole machine was analyzed. The law of material movement in the baling room, and the linear speed of the steel roller was 2.29 m/s through calculation; the kinematics simulation of the baler was carried out with ADAMS software to verify that the baler does not block and accumulate materials during operation, and the steel roll was obtained. The linear velocity of the roller was 2.3 m/s, which was basically consistent with the calculation result. The modal analysis of the baler frame was carried out by using ANSYS Workbench software, and it was concluded that the frame did not have resonance phenomenon when the baler was working normally, which could provide theoretical support for the innovative design and structural improvement of subsequent straw balers.

Key words: round baler, bale chamber, variable diameter, straw, baling mechanism, motion simulation