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托辊损坏的原因
托辊损坏的原因
Reasons for damage of idlers
从托辊的技术质量水平结合使用环境来讲,造成托辊损坏的原因主要有以下几个方面:
From the point of view of the technical quality level of the idler and the service environment, the main reasons for the damage of the idler are as follows:
一、托辊的密封性能差,轴承被淋水或粉尘污染:为了尽量减小托辊的旋转阻力,基本上都是采用迷宫式密封结构。目前,国内外所有的迷宫式密封结构,都是拍脑门设计出来的,没有原理的根据,都不能阻止淋水和粉尘对轴承的污染。众所周知,迷宫式密封的间隙大时,密封的效果不好。因此,人们绞尽脑汁,尽可能将迷宫式密封的间隙设计的很小、相互嵌入的深、层数(或道数)多,或者是圆弧形等,以期达到理想的密封效果,岂不知,这是很大的一个误区流水槽钢模具 不锈钢铸件 扭王字块模具 井盖钢模具 标志桩模具 调匝式消弧线圈 风冷控制柜 烤漆龙骨。迷宫式密封的间隙小,只能有所减缓淋水和粉尘的污染速度,远不能达到理想的效果。并且,迷宫式密封腔内填充的润滑脂,又大幅度增加了托辊的旋转阻力。
1. The sealing performance of the idler is poor, and the bearing is contaminated by water or dust. In order to minimize the rotary resistance of the idler, the labyrinth sealing structure is basically adopted. At present, all the labyrinth seal structures at home and abroad are designed by patting the head. Without the basis of principle, they can not prevent the pollution of water and dust on bearings. It is well known that when the gap of labyrinth seal is large, the sealing effect is not good. Therefore, people rack their brains to design the gap of labyrinth seals as small as possible, with the depth of mutual embedding, with more layers (or passages) or arcs, in order to achieve the ideal sealing effect. Don't you know, this is a big misunderstanding. The labyrinth seal has small clearance, which can only slow down the pollution speed of water and dust, and can not achieve the desired effect. Moreover, the lubricating grease filled in the labyrinth seal chamber greatly increases the rotary resistance of the idler.

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  1. 保定晟诺输送机械制造有限公司
  2. 手机:13673127077
  3. 联系人:李经理
  4. 邮箱:snjx666@126.com
  5. 地址:河北保定蠡县工业区

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