The invention provides a mining tire and a manufacturing method, and relates to the technical field of special tires, the mining tire comprises a tread, a belted layer, a toe opening reinforcing layer and a tire body which are sequentially arranged, a main body of the tire body bypasses a toe opening and then extends towards the tread direction to form a turn-up part, and the toe opening reinforcing layer is arranged at the position of the toe opening; in the radial direction of the tire, the turn-up part extends to exceed the maximum axial size of the tire side, the inner side and the outer side of the end part of the turn-up part are respectively provided with a protective rubber sheet, and the protective rubber sheets are in lap joint with the cushion rubber at the tire shoulder position; aiming at the problem that the tire sidewall of the current mining vehicle is easy to lose efficacy in a high-load state, by increasing the height of a tire body turn-up part and enabling the height of the turn-up part to exceed the axial widest position of the tire sidewall and combining with a protective rubber sheet at the end point position of the turn-up part, the load capacity and stiffness of the tire are improved, the axial deformation is relieved, and the problem of sidewall structure failure is reduced. The tire shoulder position is supported by the cushion rubber, so that the problems of tire shoulder separation and crown separation are reduced.
本发明提供一种矿用轮胎及制作方法,涉及特种轮胎技术领域,包括依次设置的胎面、带束层、趾口加强层和胎体,胎体的主体绕过趾口后向胎面方向延伸形成反包部,趾口位置设有趾口加强层;沿轮胎径向上,反包部延伸超过胎侧轴向尺寸最大值处,反包部端部内侧和外侧分别设有保护胶片,保护胶片与处于胎肩位置的垫胶搭接;针对目前矿用车辆的轮胎高负荷状态下轮胎胎侧易失效的问题,通过提高轮胎胎体反包部的高度并将其超过胎侧轴向最宽位置,结合反包部端点位置的保护胶片,提高轮胎的负荷能力及轮胎的挺性,减缓轴向形变减少胎侧结构失效问题,利用垫胶对胎肩位置进行支撑,减少轮胎肩空、冠脱问题。
Mining tire and manufacturing method thereof
一种矿用轮胎及制作方法
2022-08-05
Patent
Electronic Resource
Chinese
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