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盾构机中的集中润滑是作用于盾构机的关键部位刀盘驱动大轴承、唇口密封等。刀盘驱动大轴承润滑不良,会带来大轴承的咬死,造成刀盘不能工作,影响盾构使用;唇口密封润滑不好和压力过低,会造成唇口密封摩擦阻力增大,磨损增加,缩短使用寿命;润滑油压力过低,会造成盾构机外部的泥沙进入唇口密封,损坏唇口密封,进一步进入刀盘轴承,引起轴承咬死,会使盾构无法掘进。所以盾构机中的集中润滑是一个非常重要的装置。同时,盾构机中的集中润滑是强制性的润滑。
The centralized lubrication in the shield machine is a key part of the shield machine which is used to drive large bearings and lip seals in the cutterhead. Large cutter disc drive bearing lubrication, will bring a big bearing biting, resulting in cutter can not work, affecting the use of shield; lip seal lubrication is not good and the pressure is too low, will cause lip seal frictional resistance increases, wear and tear Increase and shorten the service life. If the pressure of the lubricating oil is too low, it will cause the sand outside the shield machine to enter the lip seal, damage the lip seal and further enter the cutter bearing, causing the bearing to seize death, which will make the shield unable to drive. Therefore, centralized lubrication in the shield machine is a very important device. At the same time, the centralized lubrication in the shield machine is compulsory lubrication.