The gear reducer repair and replacement

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The gear reducer gear if the following defects shall not continue to use, should be repaired or replaced.
(1) face wear of t he gear pitch circle tooth thickness wear earnings exceed the permissible wear value, to repair or replacement.
Fix: the wear of the tooth surface welding structural steel, eliminate stress after milling and grinding, or welding carbide, and then grinding.
(2) pitting and spalling of gear surface, especially in the pitch near the many small pitting (spalling pits), known as pitting. Severe gear hardness layer of steel is often peeling off in chunks.
Treatment methods: pitting gear is usually the case, you can use, but not overloaded. Serious pitting and spalling, it is necessary replaced with new parts.
(3) gear gluing the contact surface of the gear, due to the instantaneous high temperature melting, the molten material in the tooth surface by the pressure from sliding, plastic attached to its matching tooth surface.
Fix: The viscosity of lubricating oil, strengthen lubrication to prevent overload; cooling, high temperature to prevent the tooth surf ace; the glue of the tooth surface, adhesive attached to the tooth surface of the melt research out, remove the oil residues, the first light load operation, the running-time, check the normal car no problem; if melting serious, plastic deformation is large, it is replaced with new gear.