This transmission shaft is provided with: an outer ring member (3) having a bottom section (33) in which a vent hole (37) is formed through a first end section (3a) connected to a shaft member (driven shaft (2)); an inner ring member (4) that is provided on the inner peripheral side of a second end (3b) on the opposite side in the axial direction from the first end (3a) of the outer ring member (3), and that is connected to a rod member (drive shaft (1)); a ball member (5) provided between the outer ring member (3) and the inner ring member (4) and lubricated by grease (G); a plate member (7) attached to the inner peripheral portion of the outer ring member (3), the plate member (7) being a partition plate that forms a sub-chamber (30) between the plate member (7) and the bottom portion (33); and a communication passage (hole part (70)) that is provided to the plate member (7), or that communicates the first end part (3a) side and the second end part (3b) side of the outer ring member (3) via the plate member (7) in cooperation with the outer ring member (3).
本发明的传动轴具备:外圈部件(3),该外圈部件(3)具有在与轴部件(从动轴(2))相连的第一端部(3a)贯通形成有通气孔(37)的底部(33);内圈部件(4),该内圈部件(4)设置在外圈部件(3)的第一端部(3a)的轴向相反侧的第二端部(3b)的内周侧,与棒部件(驱动轴(1))相连;滚珠部件(5),该滚珠部件(5)设置在外圈部件(3)与内圈部件(4)之间,被润滑脂(G)润滑;板部件(7),该板部件(7)安装于外圈部件(3)的内周部,是在与底部(33)之间形成副室(30)的分隔板;以及连通通路(孔部(70)),该连通通路(孔部(70))设置于板部件(7),或者板部件(7)与外圈部件(3)协作,隔着板部件(7)将外圈部件(3)的第一端部(3a)侧与第二端部(3b)侧连通。
Transmission shaft
传动轴
2022-05-10
Patent
Electronic Resource
Chinese