| 摘要 |
PROBLEM TO BE SOLVED: To form an output shaft provided with a pinion for transmitting the power of a turning reduction gear, in twin structure to ensure mesh with a gear on the swing bearing side. SOLUTION: In the turning reduction gear for a working machine provided with a turning mechanism, an output shaft 11 direct-coupled to a turning motor 20 and reduced in speed by an epicyclic reduction mechanism 10 to output is supported by bearings 15, 15 built in a support housing 2 mounted integrally with the epicyclic reduction mechanism 10 on both sides of a pinion 14 provided on the output shaft 11, and the pinion 14 is meshed with a gear 36 additionally provided with a swing bearing at an opening 6 formed at the required part of the support housing 2. The support housing 2 is fixed to the mounted side of a swing bearing member (the movable side) corresponding to a swing bearing member (the fixed side) additionally provided at the gear 36.
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