The invention provides a tractor steering column which comprises a first main shaft, a second main shaft, a third main shaft and a mounting support, the upper portion of the second main shaft is connected with the lower portion of the first main shaft through a spline, and the lower end of the second main shaft is connected with the third main shaft through a universal joint; the upper portion of the first main shaft is connected with an outer pipe through a first bearing, the lower portion of the second main shaft is connected with an inner pipe through a second bearing, the outer pipe is connected with the inner pipe in a sliding mode, the lower end of the inner pipe is hinged to the installation support, and a hinged shaft right faces the universal joint. According to the invention, the first main shaft can be axially adjusted relative to the second main shaft along the spline, and the outer pipe can slide along with the first main shaft; the angle of the inner pipe can be adjusted around the universal joint along with the second main shaft; length adjustment and angle adjustment of the steering column can be achieved at the same time, flexibility is good, and operation comfort is good. And the first bearing and the second bearing improve stability, control precision is high, and quietness is good.
本发明提供了一种拖拉机转向管柱,包括第一主轴、第二主轴、第三主轴、安装支架,所述第二主轴的上部与第一主轴的下部通过花键连接,第二主轴的下端与第三主轴通过万向节连接;所述第一主轴的上部通过第一轴承连接有外管,第二主轴的下部通过第二轴承连接有内管,外管与内管滑动连接,内管的下端铰接于所述安装支架上且铰接轴正对所述万向节。采用本发明,第一主轴可沿花键相对于第二主轴进行轴向调节,外管可随第一主轴滑动;内管可随第二主轴绕万向节进行角度调节;实现了转向管柱可同时进行长度调节和角度调节,灵活性好,操作舒适性好;且第一轴承、第二轴承提高了稳定性,操纵精度高,静谧性好。
Tractor steering column
拖拉机转向管柱
2024-10-25
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
Tractor steering column transmission shaft buffer device and steering column
European Patent Office | 2024
|Engineering Index Backfile | 1962
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