The invention discloses a frame flexible supporting structure and a mining dump truck. The frame flexible supporting structure is composed of a left supporting plate assembly, a right supporting plate assembly and a supporting shaft. The left supporting plate assembly and the right supporting plate assembly are welded to the lower portion of the frame through the vertical plate, the front end of the vertical plate and the tail end of the vertical plate are each of a long and thin structure, so that a welding seam for connecting the vertical plate and the frame is long, and sufficient connecting strength is achieved. The whole structure of the supporting shaft is a cylinder, and the two ends of the supporting shaft penetrate through round holes in the lower portions of the left supporting plate assembly and the right supporting plate assembly to be connected with the left supporting plate assembly and the right supporting plate assembly. When being stressed, the left supporting plate assembly and the right supporting plate assembly can deform inwards, slight sliding can be generated between the supporting shaft and the left supporting plate assembly and between the supporting shaft and the right supporting plate assembly, a flexible structure is formed, and the impact of the lifting oil cylinder on the whole supporting structure is relieved through deformation and sliding. The supporting shaft is not welded to the left supporting plate assembly and the right supporting plate assembly, the fault of weld joint cracking is avoided, the structural reliability is improved, and the service life of the frame is prolonged.
本发明公开了一种车架柔性支撑结构及矿用自卸车,由左支撑板总成、右支撑板总成、支撑轴组成。左支撑板总成和右支撑板总成通过立板焊接在车架下方,立板前端和立板尾端为细长结构,使得立板和车架连接的焊缝较长,具有足够的连接强度。支撑轴整体结构为圆柱体,支撑轴两端穿过左支撑板总成和右支撑板总成下方的圆孔,连接左支撑板总成和右支撑板总成。受力时,左、右支撑板总成在受力时会向内侧变形,支撑轴和左、右支撑板总成之间会产生轻微的滑动,形成了柔性结构,通过变形和滑动缓解了举升油缸对整个支撑结构的冲击。支撑轴与左、右支撑板总成之间没有焊接,不会产生焊缝开裂的故障,提高了结构可靠性和车架使用寿命。
Frame flexible supporting structure and mining dump truck
一种车架柔性支撑结构及矿用自卸车
2022-05-27
Patent
Electronic Resource
Chinese
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