Collision-proof vibration-damping undercutting device for combine harvester

联合收割机防撞减振式下切割装置

Abstract

一种联合收割机防撞减振式下切割装置,它包括下切割刀组,刀架,安装于刀架前中部底面的滑撬,连接刀架两边梁后端部的管轴,连接下切割刀组的曲柄连杆机构,以及通过轴承安装于管轴内的曲柄连杆传动轴,和连接于上割台与刀架之间的滑槽拉杆,其特征在于刀架两边梁与地平面之间的安装夹角α≤30°,而且管轴是固定于机架底盘上的,刀架两边梁后端部是通过抱箍结构与管轴相连接的,抱箍与管轴之间保留有活动间隙。本实用新型工作中,当滑撬碰撞到田埂时,刀架能自动抬升,有效地避免切割刀插入田埂而受损;同时刀架的振动也大大降低,大幅度提高了整机工作的安全可靠性和工作效率。
The utility model provides a collision-proof vibration-damping undercutting device for combine harvester, comprising an undercutting cutter set, a cutter frame, a sliding sledge positioned on the bottom surface in the front middle part of the cutter frame, a pipe shaft connecting the back parts of two edge beams of the cutter frame, a crank connecting rod mechanism connected with the undercutting cutter set, a crank-link driving shaft arranged in the pipe shaft through a bearing, and a sliding groove draw rod connecting the upper cutting table and the cutter frame. The device is characterized in that the position included angle between the two edge beams of the cutter frame and the flat surface is not bigger than 30 degree, the pipe shaft is fixed on the chassis of the machine frame, the back end parts of the two edge beams of the cutter frame are connected with the pipe shaft through a hooping structure, and a moving gap is reserved between the hoop and the pipe shaft. In working, when the sliding sledge collides with the ridges of the field, the cutter frame of the utility model can automatically lift up, so as to effectively avoid the damage of the cutting knife when inserting into the ridges. Simultaneously, the vibration of the cutter frame is reduced, which greatly improves the working safety and the working efficiency of the complete machine.

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Cited By (7)

    Publication numberPublication dateAssigneeTitle
    CN-102265740-ADecember 07, 2011湖南省双峰县湘源皇视电子有限公司收割与旋耕联合作业机
    CN-104396434-AMarch 11, 2015兴化市利源农业装备制造有限公司Lower cutter structure for combine harvesters
    CN-104396434-BOctober 05, 2016兴化市利源农业装备制造有限公司一种联合收割机的下刀结构
    CN-104813798-AAugust 05, 2015星光农机股份有限公司一种联合收割机的下刀装置
    CN-104813798-BFebruary 22, 2017星光农机股份有限公司一种联合收割机的下刀装置
    CN-104838801-AAugust 19, 2015星光农机股份有限公司Self-limiting apparatus of lower knife of harvester
    CN-104838801-BJanuary 04, 2017星光农机股份有限公司一种收割机下刀自身限位装置