The invention relates to a foldable boarding ladder for a harvester. The ladder comprises a ladder frame body welded part, the ladder frame body welded part is of an inverted-L-shaped frame structureand comprises an upper transverse part and a vertical part, the inner end of the upper transverse part is fixedly connected with one side of a rack below a harvester cab, the upper transverse part islocated above a front tire on the corresponding side, and the vertical part is located on the outer side of the front tire on the corresponding side; the foldable boarding ladder comprises a pluralityof pedals which are sequentially arranged up and down, the positions, close to the middle, of the two sides of the uppermost step of pedal are rotatably connected with the two side edges of the uppertransverse part through pin shafts, and the positions, close to the inner ends, of the two sides of the other steps of pedals are rotatably connected with the two side plates of the vertical part through pin shafts; a connecting plate is arranged on each of the two sides of the multi-step pedal, and each pedal is rotatably connected with the connecting plates on the two sides through respective pin shafts; and the foldable boarding ladder comprises a recovery action mechanism which can enable the pedals to be erected and folded. The foldable boarding ladder is simple in structure and convenient to operate, and the pedals can be rotationally folded, so that the width of the whole boarding ladder is not greatly increased.
本发明涉及一种用于收获机上的可折叠式上车梯,包括梯子架体焊合,梯子架体焊合为倒L型框架结构,包括上横部和竖向部两部分:上横部的内端与收获机驾驶室下方机架的一侧固定连接,上横部位于对应侧前轮胎的上方,竖向部位于对应侧前轮胎的外侧;包括上下依次设置的多阶踏板;最上一阶踏板的两侧靠近中部位置与上横部的两侧边通过销轴可转动式连接,其他阶踏板的两侧靠近内端的位置与竖向部的两侧板通过销轴可转动式连接;在多阶踏板的两侧各设置有一连接板,各踏板通过各自销轴与两侧连接板可转动式连接;包括能使各阶踏板竖起折叠的回收作用机构。本上车梯结构简单、操作方便,由于各阶踏板均可转动收起,因此对整机的宽度增加影响不大。
Foldable boarding ladder for harvester
一种用于收获机上的可折叠式上车梯
2020-04-28
Patent
Electronic Resource
Chinese
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