A lower cross arm assembly comprises a first supporting arm and a second supporting arm which are oppositely arranged, the first supporting arm and the second supporting arm are connected into a whole through an arm shoulder, the end of the first supporting arm and the end of the second supporting arm are each provided with a pin shaft hole, the two pin shaft holes are coaxially arranged, and the first supporting arm and the second supporting arm are coaxially arranged. The second cross arm pin shaft penetrates through the pin shaft hole to enable the lower cross arm assembly to be hinged to the frame, an oil inlet channel is drilled in the cross arm pin shaft in the axial direction, oil outlet channels penetrating through the first cross arm pin shaft and the second cross arm pin shaft are drilled in the peripheral wall of the first cross arm pin shaft and the peripheral wall of the second cross arm pin shaft in the radial direction, and the oil outlet channels are communicated with the oil inlet channel. Annular diffusion grooves are formed in the peripheral walls of the first cross arm pin shaft and the second cross arm pin shaft in the circumferential direction and communicate with oil outlets in the two sides of the oil outlet channel. The invention is applicable to the chassis of an extra-heavy vehicle, and effectively solves the problem that the pin shaft of the cross arm is difficult to lubricate, disassemble and assemble.
本发明涉及一种用于超重型车辆的双横臂独立悬架系统,其中,下横臂总成包括相对设置的第一支臂和第二支臂,第一支臂的通过臂肩与第二支臂连为一体,第一支臂的端部和第二支臂的端部均设有一销轴孔,两个销轴孔同轴心布置,第二横臂销轴穿过销轴孔将下横臂总成铰接在车架上,横臂销轴内沿轴向钻有进油通道,第一横臂销轴和第二横臂销轴的外周壁上沿径向均钻有贯穿自身的出油通道,出油通道与进油通道连通,第一横臂销轴和第二横臂销轴的外周壁上沿周向均设有环形扩散槽,环形扩散槽与出油通道两侧的出油口连通。本发明可适用于超重型车辆底盘,并有效解决了横臂销轴润滑及拆装困难的问题。
Double-wishbone independent suspension system for extra-heavy vehicle
一种用于超重型车辆的双横臂独立悬架系统
2022-03-22
Patent
Electronic Resource
Chinese
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |
European Patent Office | 2020
|Double-wishbone independent suspension system and vehicle
European Patent Office | 2023
|