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    • 1. 发明授权
    • Drive force transmission apparatus
    • 驱动力传动装置
    • US5899306A
    • 1999-05-04
    • US966244
    • 1997-11-07
    • Naoyuki SakaiHiroshi TakunoYoshiaki SengaKunihiko SuzukiNaoyuki KokuboTsuyoshi MurakamiMikiharu OyabuSatoshi AshidaKenji AraiHisashi FukuchiAkio Mukainaka
    • Naoyuki SakaiHiroshi TakunoYoshiaki SengaKunihiko SuzukiNaoyuki KokuboTsuyoshi MurakamiMikiharu OyabuSatoshi AshidaKenji AraiHisashi FukuchiAkio Mukainaka
    • F16D43/284
    • F16D43/284
    • A drive force transmission apparatus includes a housing connected to one of two shafts that are rotatable relative to each other, a rotary shaft rotatably supported by the housing and connected to the other shaft, and a multiple disc clutch composed of a plurality of outer plates engaged with the housing in the rotational direction and a plurality of inner plates engaged with the rotary shaft in the rotational direction. The multiple disc clutch transmits rotational torque between the housing and the rotary shaft through frictional engagement between the outer plates and the inner plates. The apparatus also includes a pressure generation mechanism for generating a pressure corresponding to a rotational-speed difference between the housing and the rotary shaft and for applying the generated force to the multiple disc clutch via a piston. The pressure generating means is composed of a plurality of rotary blades accommodated within a cylindrical space formed between the piston and the housing and rotating together with the rotary shaft, a viscous fluid charged into a plurality of pressure chambers defined by the housing, the piston, and the rotary blades, and a free blade accommodated within at least one pressure chamber. The free blade is freely movable in the circumferential direction between the rotary blades.
    • 驱动力传递装置包括连接到可相对于彼此旋转的两个轴之一的壳体,由壳体可旋转地支撑并连接到另一轴的旋转轴,以及由多个外板接合的多片离合器 其中壳体沿旋转方向,并且多个内板在旋转方向上与旋转轴接合。 多片离合器通过外板和内板之间的摩擦接合在壳体和旋转轴之间传递旋转扭矩。 该装置还包括用于产生对应于壳体和旋转轴之间的转速差的压力并用于经由活塞将生成的力施加到多片离合器的压力产生机构。 压力发生装置由容纳在形成于活塞和壳体之间的圆柱形空间中并与旋转轴一起旋转的多个旋转叶片组成,被填充到由壳体,活塞等限定的多个压力室中的粘性流体, 和旋转叶片,以及容纳在至少一个压力室内的自由叶片。 自由叶片可在旋转叶片之间沿圆周方向自由移动。
    • 7. 发明授权
    • Contra-rotating bearing device for contra-rotating propeller
    • 反转螺旋桨的反转轴承装置
    • US6056509A
    • 2000-05-02
    • US809339
    • 1998-08-10
    • Mikihiko NakayamaShinichi OhtaniKazuhide OhtaMasayasu MatsudaKeiichi NittaSatoshi KeirimboSatoshi AshidaHideki Shibuya
    • Mikihiko NakayamaShinichi OhtaniKazuhide OhtaMasayasu MatsudaKeiichi NittaSatoshi KeirimboSatoshi AshidaHideki Shibuya
    • B63H5/10B63H23/32F16C17/18F16C32/06F16C33/10F01D1/24
    • F16C32/0651B63H21/386B63H23/321B63H5/10F16C17/02F16C17/18F16C33/1065F16C33/1075B63H2005/106B63H2023/323
    • A hollow portion is provided on the core of an inner shaft (2) to form an oil feed port (3), a plurality of oil feed holes (4) which are connected with both of the outer peripheral face of the inner shaft (2) within a range (L) of the bearing surface of the inner shaft (2) and the oil feed port (3) are radially provided in a line , and axial oil grooves (5) each of which includes an inner shaft surface side opening portion (4a) of the oil feed hole (4) are provided on the outer peripheral face of the inner shaft to form a contra-rotating bearing device for a contra-rotating propeller which causes the inner shaft (2) and an outer shaft (2) to contra-rotate mutually. In place of the oil grooves, a plurality of concave-convex portions may be formed in the axial direction of a contra-rotating bearing on the inner peripheral face of the bearing and circular portions may be provided on both axial ends of the concavo-convex portions to form the contra-rotating bearing device for a contra-rotating propeller. Thus, a sufficient oil film is formed on the bearing surface of the contra-rotating bearing in an area where the inner shaft and the outer shaft rotate in mutually opposite directions at almost equal speeds so that an excellent bearing function can be obtained.
    • PCT No.PCT / JP95 / 01761 Sec。 371日期:1998年8月10日 102(e)日期1998年8月10日PCT 1997年3月6日PCT公布。 公开号WO96 / 07832 日期:1996年3月14日在内轴(2)的芯部上设置有中空部,形成供油口(3),多个供油孔(4) 在内轴(2)的支承面和供油口(3)的范围(L)内的内轴(2)沿径向设置成一条直线,轴向油槽(5) 供油孔(4)的内轴面侧开口部(4a)设置在内轴的外周面上,形成反转螺旋桨的反转轴承装置,该反转轴承装置使内轴(2) 和外轴(2)相互旋转。 代替油槽,可以在轴承的内周面上的反转轴承的轴向上形成多个凹凸部,并且可以在凹凸的两个轴向端部设置圆形部分 部分以形成反向旋转的螺旋桨的反转轴承装置。 因此,在反转轴承的轴承面上,在内轴和外轴以相等的速度相互相反的方向旋转的区域形成有充分的油膜,从而能够获得优异的轴承功能。
    • 10. 发明授权
    • Rotary coupling for torque transmission
    • 用于转矩传递的旋转联轴器
    • US5178249A
    • 1993-01-12
    • US813690
    • 1991-12-27
    • Kyosuke HagaSatoshi AshidaYukihiro Tanigawa
    • Kyosuke HagaSatoshi AshidaYukihiro Tanigawa
    • F16D35/00F16D43/284F16D47/06
    • F16D43/284F16D35/00F16D35/005F16D47/06
    • A rotary coupling for torque transmission is arranged between two relatively rotatable shafts to transmit a rotational torque in response to a rotational speed difference therebetween. The device includes a housing connected to the first shaft for rotation therewith, a clutch means for transmitting rotational torque between two shafts, and a piston which thrusts the clutch means in the axial direction. The rotary coupling also includes a rotor received in a cylindrical space, in which a high viscous fluid is filled to be compulsorily moved by the rotor. Each side surface of the rotor is provided with plural depressions at regular interval in the circumferential direction. The depressions have inclining surfaces inclining in the rotational direction of the rotor. When a rotational speed difference occurs between the two shafts, wedge effects occur between the inclined surfaces and the housing and between the inclined surface and the piston so that a high pressure is generated in the space section quickly.
    • 用于扭矩传递的旋转联轴器设置在两个相对旋转的轴之间,以响应于它们之间的转速差而传递旋转扭矩。 该装置包括连接到第一轴以与其一起旋转的壳体,用于在两个轴之间传递旋转扭矩的离合器装置和沿轴向推动离合器装置的活塞。 旋转联轴器还包括容纳在圆柱形空间中的转子,其中高粘性流体被填充以被转子强制地移动。 转子的每个侧表面在圆周方向上以规则间隔设置有多个凹部。 凹部具有在转子的旋转方向上倾斜的倾斜面。 当在两个轴之间产生转速差时,在倾斜表面和壳体之间以及倾斜表面和活塞之间产生楔形效应,使得在空间部分中快速产生高压。