| 摘要 |
<p>Disclosed is a planetary gear decelerator capable of reducing processing costs, and implementing high precision as a housing comprises a front cover and a rear cover around a main frame. To achieve the objective of the present invention, the housing is formed to be separated into the front cover, the main frame, and the rear cover in order. In the front cover, a first bearing combining part is formed in the rear end with which the main frame is combined, a first oil seal combining part is formed in the front end so as to form a first projection in a boundary with the bearing combining part, an oil seal for an output shaft is combined with the first oil seal combining part, and an output shaft is combined to be rotated as being supported by a bearing for an output shaft combined with the first bearing combining part. In the main frame, a second bearing combining part with which a bearing for a carrier is combined is formed in the rear end of a ring gear facing the rear cover (300), a planetary gear carrier with which a plurality of planet gears engaged with the ring gear are combined is installed in the rear end of the output shaft, and the rear end of the planetary gear carrier is supported by the bearing for a carrier whose part is combined with the second bearing combining part. The present invention has an effect of improving formability, assembly, and decelerator precision as components are assembled in a joining surface of the front cover and the rear cover around the main frame.</p> |
