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目前,国外采用了一种真空滚筒的传动方法,也就是把滚筒内部抽成真空,利用滚筒外的大气压力使胶带压紧滚筒,增加滚筒的传动能力。这样,对于一个相同的胶带,在同样的安全强度下,由于传动能力的加大,可以减小初张力,因此可以输送更大的长度或克服较大的阻力;或者,在相同的参数下,由于初张力可以减小,胶带内的最大张力可以减小,也就延长了胶带的寿命,或者可以改用较薄的(内衬层数较小的)胶带。据苏联的资料介绍,真空滚筒传动的2л80型胶带输送机可以用五层胶带代替ПВХ-100型普通胶带输送机用的六 层胶带,仅折旧提成
At present, a foreign vacuum roller drive method is used, that is, the pump is drawn into a vacuum, the atmospheric pressure outside the drum so that the tape pressed against the roller, increasing the transmission capacity of the roller. In this way, for the same tape, with the same safety strength, the initial tension can be reduced due to the increased transmission capacity, so that a larger length can be delivered or a greater resistance can be overcome; or, under the same parameters, As the initial tension can be reduced, the maximum tension within the tape can be reduced, thus extending the life of the tape, or you can use a thinner (less lining) tape. According to the Soviet Union’s information, vacuum roller conveyor 2л80 tape conveyor belt can be replaced with five layers of ПВХ-100 ordinary belt conveyor with six tape, only depreciation commission