The invention belongs to the technical field of non-pneumatic tires, and particularly relates to a non-pneumatic tire comprising X-shaped spokes, which comprises a rubber tread, a sandwich beam, spokes and a rim. The spokes are composed of a plurality of X-shaped spoke units which are evenly and discretely arranged in the circumferential direction of the wheel. Compared with the existing spoke design, such as honeycomb spokes arranged in the axial direction of the wheel, the X-shaped spoke units have higher in-plane flexibility and out-of-plane rigidity, so that it is guaranteed that the wheel hub has the mechanical property similar to that of a pneumatic tire, that is, the longitudinal rigidity is larger than the lateral rigidity, and the vertical rigidity is between the longitudinal rigidity and the lateral rigidity. Besides, the crossed spoke arms of the X-shaped spoke units can be manufactured to be arc-shaped and have a good vibration reduction effect, and the upper arms and the lower arms can adopt approximately trapezoidal sections so as to reduce stress concentration at the joints of the spokes, the rim and the sandwich beam when the wheel is braked. Compared with an existing non-pneumatic tire, the non-pneumatic tire has the mechanical property similar to that of a pneumatic tire, is suitable for medium-low speed vehicles and can also be used for high-speed vehicles.
本发明属于非充气轮胎技术领域,尤其是一种包含X形辐条的非充气轮胎,由橡胶胎面、夹芯梁、辐条和轮辋组成。辐条由若干沿车轮圆周方向均匀且离散的X形辐条单元组成。相对于现有辐条设计,如布置于车轮轴向的蜂窝辐条,X形辐条单元具备较高的面内柔度和面外刚度,因此保障本发明具备与充气轮胎相似的力学特性,即纵向刚度大于侧向刚度,且垂向刚度介于二者之间。此外,X形辐条单元的交叉辐条臂可以制作为圆弧形,具备良好的减振效果,而上臂和下臂可以采用近似梯形的截面,用以减小车轮制动时,辐条与轮辋以及夹芯梁连接处的应力集中。相对于现有非充气轮胎,本发明具备与充气轮胎相似的力学特性,不仅适用于中低速车辆,也可用于高速汽车。
Non-pneumatic tire comprising X-shaped spokes
一种包含X形辐条的非充气轮胎
2024-10-01
Patent
Electronic Resource
Chinese