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随着对大型、高输送量皮带运输机需要的增加,高强度运输皮带得到迅速推广,这种运输皮带必须具有高的牵引力,滚筒与轴之间必须具有牢固的联接性能。用常规方式装配滚筒时,普遍存在一个问题,即由于轮毂受压不均,在运转过程中轮毂在轴上就会“窜动”,从而引起皮带跑偏,进而导致皮带和轴承过早损坏。这种现象对宽的和高精度滚筒表现的更为严重。随之带来的其它问题是,由于端盖变形,造成轮毂与端盖之间、端盖与筒体之间产生应力集中,从而导致滚筒过早地疲劳破坏。在最近十年中,德国、澳大利亚等国的采矿工作者和滚筒制造商们,对不同型式的滚筒进行了广泛的研究和应力分析,以期提高皮带运输机的能力和性能。其中一项成果就是一种
As the need for large, high-throughput belt conveyors has increased, high-strength transport belts have been rapidly marketed, and such transport belts must have high traction with a strong coupling between the drum and the shaft. A common problem with conventional drum assemblies is that due to uneven compression of the hub, the hub “runs” on the shaft during operation, causing the belt to run off, which can lead to premature belt and bearing damage. This phenomenon is more serious for wide and high precision rollers. The other problem that accompanies it is that due to the deformation of the end cap, stress concentration occurs between the hub and the end cap and between the end cap and the cylinder, which leads to premature fatigue failure of the roller. In the last ten years, miners and roller manufacturers in Germany, Australia and other countries conducted extensive research and stress analysis on different types of drums to improve the capacity and performance of the belt conveyor. One of the achievements is one