ROTATION MECHANISM AND ROBOT
To provide a rotation mechanism and robot, for which assembly and disassembly work efficiency can be improved and which can be operated stably and extend the product service life.SOLUTION: A speed reduction mechanism 1B according to an embodiment includes an output shaft 9, carriers 13, 14 each of w...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a rotation mechanism and robot, for which assembly and disassembly work efficiency can be improved and which can be operated stably and extend the product service life.SOLUTION: A speed reduction mechanism 1B according to an embodiment includes an output shaft 9, carriers 13, 14 each of which has an output shaft hole 13b, 14b, and oscillating gears 11, 12 each of which has an output shaft insertion hole 25a, 25b. The output shaft holes 13b, 14b and the output shaft insertion holes 25a, 25b are inserted with the output shaft 9 and have inner peripheral surfaces contacted with the output shaft 9. The surface roughness Ra of the inner peripheral surfaces of the output shaft holes 13b, 14b and output shaft insertion holes 25a, 25b is equal to or less than 1.6 μm, and the static friction coefficient of the inner peripheral surfaces against the output shaft 9 is equal to or less than 0.2.SELECTED DRAWING: Figure 2
【課題】組み立て作業性や分解作業性を向上できるとともに、安定動作させて製品寿命も延命化できる回転機構及びロボットを提供する。【解決手段】実施形態の減速機構1Bは、出力シャフト9と、出力シャフト孔13b,14bを有する各キャリア13,14、及び出力シャフト挿入孔25a,25bを有する各揺動歯車11,12と、を備える。出力シャフト孔13b,14b及び出力シャフト挿入孔25a,25bは、出力シャフト9が挿入されるとともに内周面に出力シャフト9が接触される。出力シャフト孔13b,14b及び出力シャフト挿入孔25a,25bの内周面の面粗度Raは、1.6μm以下であり、かつ内周面の出力シャフト9に対する静摩擦係数は、0.2以下である。【選択図】図2 |
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