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    • 3. 发明授权
    • Electric power-steering apparatus
    • 电动助力转向装置
    • US07537080B2
    • 2009-05-26
    • US10544220
    • 2004-02-03
    • Tetsuya MurakamiAtsuya MiyataHiroshi MuratakaAkihiro Hironaka
    • Tetsuya MurakamiAtsuya MiyataHiroshi MuratakaAkihiro Hironaka
    • B62D5/04
    • F16H37/02B62D5/0424F16H7/023F16H2025/2096
    • An electric power steering apparatus includes a reduction gear mechanism (17) for reducing the rotation speed of an output shaft (16) of an electric motor (15). The reduction gear mechanism (17) comprises an inscribed gear (39) rotatable interlockingly with the output shaft (16), and a circumscribed gear (40) in which the inscribed gear (39) is inscribed. An endless belt connects a driving pulley (41) integrally rotatable with the circumscribed gear (40) and a driven pulley (42) disposed so as to surround a steerable shaft. By heightening the reduction gear ratio by the speed reduction using the inscribed gear (39) and the circumscribed gear (40), the reduction gear mechanism (17) as a whole can achieve a high reduction gear ratio without making the diameter of the driving pulley (41) very small.
    • 电动助力转向装置包括用于减小电动机(15)的输出轴(16)的转速的减速机构(17)。 减速机构(17)包括可与输出轴(16)互锁的内接齿轮(39)和内接齿轮(39)内接的外接齿轮(40)。 环形带连接与外接齿轮(40)可整体旋转的驱动滑轮(41)和设置成围绕可转向轴的从动滑轮(42)。 通过使用内接齿轮(39)和外接齿轮(40)通过减速来提高减速比,减速齿轮机构(17)整体上可以实现高的减速比,而不会使驱动滑轮的直径 (41)非常小。
    • 6. 发明申请
    • Gear device and electric power steering apparatus
    • 齿轮装置和电动助力转向装置
    • US20070240536A1
    • 2007-10-18
    • US11727253
    • 2007-03-26
    • Tetsuya Murakami
    • Tetsuya Murakami
    • F16H57/02
    • F16H57/0427B62D5/0409B62D5/0412F16H57/0421Y10T74/19991Y10T74/2186
    • A housing of a gear device houses a plurality of gears and a lubricant. On at least one side surface of at least one gear selected from the plurality of gears, an extended projection is provided. On a side surface of the housing facing the side surface of the selected gear, an extended projection is provided. The extended projection of the selected gear and the extended projection of the housing extend in a direction crossing the circumferential direction of the selected gear. When viewed along an axial direction of the selected gear, according to rotation of the selected gear, the extended projection of the selected gear and the extended projection of the housing partially face each other in the axial direction of the selected gear and form facing portions. A lubricant holding portion capable of holding the lubricant is formed between the facing portion of the extended projection of the selected gear and the facing portion of the extended projection of the housing.
    • 齿轮装置的壳体容纳多个齿轮和润滑剂。 在从多个齿轮中选择的至少一个齿轮的至少一个侧表面上,设置有延伸的突起。 在壳体的面对所选择的齿轮的侧表面的侧表面上,设置有延伸的突起。 所选择的齿轮的延伸突起和壳体的延伸突起沿与选定齿轮的圆周方向交叉的方向延伸。 当沿所选择的齿轮的轴向观察时,根据所选择的齿轮的旋转,所选择的齿轮的延伸突起和壳体的延伸突起在所选择的齿轮的轴向方向上部分地彼此面对并形成面对部​​分。 能够保持润滑剂的润滑剂保持部分形成在所选齿轮的延伸突起的相对部分和壳体的延伸突起的相对部分之间。
    • 9. 发明授权
    • Electric power steering apparatus
    • 电动助力转向装置
    • US07159690B2
    • 2007-01-09
    • US10866182
    • 2004-06-14
    • Tetsuya MurakamiKousuke YamanakaKensaku Nakamura
    • Tetsuya MurakamiKousuke YamanakaKensaku Nakamura
    • B62D5/04
    • B62D5/0448B62D5/0421
    • An electric power steering apparatus comprises a rack shaft movable in the axial direction. The rack shaft is meshed with a pinion rotated in response to the operation of a steering member. The rotation of the output shaft in an electric motor is decelerated by first and second gears which are meshed with each other. A motion conversion mechanism for converting the rotation of the second gear into the axial movement of the rack shaft comprises a rotating cylinder rotated in synchronization with the second gear and a screw shaft. The screw shaft is integrally provided coaxially with the rack shaft and is screwed into the rotating cylinder through a rolling member. A screw groove in the screw shaft and the teeth in the first gear are twisted in the same direction.
    • 电动助力转向装置包括沿轴向移动的齿条轴。 齿条轴与响应于转向构件的操作而旋转的小齿轮啮合。 输出轴在电动机中的旋转由彼此啮合的第一和第二齿轮减速。 用于将第二齿轮的旋转转换成齿条轴的轴向运动的运动转换机构包括与第二齿轮同步旋转的旋转圆筒和螺杆轴。 螺杆轴与齿条轴同轴地设置,并通过滚动部件旋入旋转圆筒。 螺杆轴上的螺纹槽和第一档中的齿沿同一方向扭转。