REDUCTION DEVICE USING PLANETARY GEARS

The present invention provides a reduction device using a planetary gear, capable of stably fixing a shaft of gears. According to an embodiment of the present invention, the reduction device includes: a housing having at least one convex unit on one side of the inner circumference; a main shaft axia...

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Bibliographische Detailangaben
1. Verfasser: CHO, KWANG HO
Format: Patent
Sprache:eng ; kor
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Zusammenfassung:The present invention provides a reduction device using a planetary gear, capable of stably fixing a shaft of gears. According to an embodiment of the present invention, the reduction device includes: a housing having at least one convex unit on one side of the inner circumference; a main shaft axially installed at the center of the housing; a sun gear installed to rotate around the main shaft on the outer circumference of the main shaft and having an input gear on one side of the outer circumference, wherein an output gear is formed on the other side of the outer circumference; at least one planetary gear formed on the outer circumference to be circumscribed to the input gear and rotating around a driving shaft of a motor axially fixed to the housing; a ring gear including at least one concave unit formed on the outer circumference facing the convex unit of the housing and having the input gear inscribed to the first planetary gear on one side of the inner circumference, wherein the output gear is formed on the other side of the inner circumference of the ring gear; and at least one second planetary gear circumscribed to the output gear of the sun gear and inscribed to the output gear of the ring gear. The ring gear is installed to rotate around the main shaft. The convex unit of the housing is connected by being inserted into the concave unit of the ring gear. 본 발명의 실시예에 따른 감속장치는, 내주면의 일측에 적어도 하나의 볼록부가 형성되는 하우징; 하우징의 중심에 축설된 주축; 주축의 외주면에서 주축을 중심으로 회전 가능하게 설치되고, 외주면의 일측에 입력측 기어가 형성되며, 외주면의 타측에 출력측 기어가 형성된 선기어; 입력측 기어에 외접하도록 외주면에 기어가 형성되고, 하우징에 축 고정된 모터의 구동축을 중심으로 회전하는 적어도 하나의 제1 플래닛기어; 하우징의 볼록부에 대향되는 외주면에 형성되는 적어도 하나의 오목부를 포함하며, 내주면의 일측에 제1 플래닛기어와 내접하는 입력측 기어가 형성되고, 내주면의 타측에 출력측 기어가 형성되며, 주축을 중심으로 회전 가능하게 설치된 링기어; 선기어의 출력측 기어에 외접하고 링기어의 출력측 기어에 내접하는 적어도 하나의 제2 플래닛기어를 포함하며, 하우징의 볼록부가 링기어의 오목부에 삽입되어 결합될 수 있다.