对山推推土机减速器圆锥齿轮轴向窜动间隙怎么检查调整?

2025-04-04 01:21:21
推荐回答(1个)
回答1:

对山推推土机减速器圆锥齿轮轴向窜动间隙的检查和调整:
(1)首先拆下燃油箱,增力器和转向离合器,清除后桥壳体上的污垢,并用煤油清洗中央传动室。不仅保持工作场地清洁,更主要的是消除被查轴承和齿轮轮齿间的油垢,以免所测间隙不真实。
(2)装上检查轴向窜动间隙的专用工具和千分表,表的触头与被测被动圆锥齿轮的端面相接触,若没有检查轴向间隙的专用工具时,可用撬棍设法沿轴向撬动被动圆锥齿轮,以测出其最大轴向窜动间隙。
(3)如果测得间隙超过0.1-0.2mm时,应在左右侧轴承盖上面各轴取厚度等于要求减小间隙量的一半的垫片,从轴的两端去垫的目的是保证减速器主、被动圆锥齿轮的正确啮合位置不变。若测得间隙过小时,其调整方法与前述相反。
推土机的中央传动装置(驱动桥)是在变速器与转向离合器之间的传动机构。其作用是将变速箱下轴传来的转矩放大,并改变旋转方向将转矩分别传给左右转向离合器以至最终传动齿轮,使推土机行走。中央传动装置主要由减速器主、被动圆锥螺旋齿轮、被动圆锥螺旋轮轴、圆锥轴承及联轴器等组成,由于维护不当或使用过久等,均会使中央传动装置发生异响和过热等故障。
中央传动装置常出的故障是在工作时出现异常响声或过热。引起这些故障原因与本章第二节变速器异响和过热的原因基本相同,在此介绍减速器的圆锥齿轮正确啮合印痕的调整和轴承间隙的调整。

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