Description
Gear rack is the main transmission part in lifting mining shovel bucket; the shovel bucket achieves to lift by movement of the boom rack which carries out the operation of excavating, loading, and unloading, large impact on gear rack when working, the failure form is that the rack surface wear and broken teeth.
Due to the connection of gear rack and dipper handle by welding with the dipper arm, so the material of rack must be with high strength, good toughness and welding performance. And installation of rack should be with neutral and parallelism
Racks shall be replaced in pairs.
Due to the connection of gear rack and dipper handle by welding with the dipper arm, so the material of rack must be with high strength, good toughness and welding performance. And installation of rack should be with neutral and parallelism
Racks shall be replaced in pairs.
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