What are the causes of abnormal meshing of the worm gear of the WPWA60-40-A reducer? 2025-10-30
This problem is very accurate. The core reasons for the abnormal meshing of the worm gear of the WPWA60-40-A reducer are concentrated in four categories: assembly deviation, wear and aging, lubrication failure, and improper working conditions. The details are as follows: 1. Assembly and installation deviation center distance deviation. The actual installation center distance deviates from the design value (60mm), resulting in tooth tip or tooth root contact during meshing instead of contact in the middle of the tooth surface. Axis position deviation, the axis of the worm and the worm gear is not perpendicular (tolerance ≤ 0.02mm/m) or not parallel, causing unbalanced meshing. Bearing installation problems, the bearing clearance is too large/too small or the assembly is tilted, causing the worm/worm gear shaft to move and skew, destroying the meshing accuracy. The deformation of the box, uneven pretightening force of the base bolts or insufficient foundation rigidity lead to slight deformation of the box, which indirectly affects the meshing position. 2. Component wear and quality issues: Tooth surface wear. After long-term operation, the worm gear (copper) tooth surface wears unevenly, the tooth thickness becomes thinner, or the worm tooth surface is rusted or scratched.
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