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三共制作所为了克服行星齿轮传动装置的缺点研制成了行星滚柱传动装置,并申请了专利。这种装置可作为液力联轴器、变速装置、差动装置使用。行星齿轮传动有着较多的缺点,如:齿侧存在着间隙,转动时易产生噪声;齿形误差引起回转不均;由于根切的限制,与内齿轮相啮合的行星轮的齿数不能太少,因此,不能得到更大的速比。行星滚柱传动装置把齿轮换成滚柱,使动力传递的形式由齿轮的吻合传动变成了滚柱的摩擦传动。这种装置的主要特点如下:(1)如图所示,该装置由多列行星滚柱群构成,
In order to overcome the shortcomings of the planetary gear drive, Sankyo made a planetary roller drive and applied for a patent. This device can be used as a hydraulic coupling, transmission, differential device. Planetary gear transmission has many shortcomings, such as: there is a gap on the tooth side, easy to produce noise when turning; tooth shape error caused by uneven rotation; due to undercutting, and the internal gear meshing planet gear not too small , Therefore, can not get a bigger speed ratio. Planetary roller gear to the gear into the roller, so that the form of power transmission by the gear of the transmission into a roller friction transmission. The main features of this device are as follows: (1) As shown in the figure, the device consists of a plurality of columns of planetary rollers,