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    • 38. 发明申请
    • ROLLER SCREW AND METHOD OF CIRCULATING ROLLERS IN ROLLER SCREW
    • 滚子螺杆和滚子螺旋滚子的循环方法
    • US20100282011A1
    • 2010-11-11
    • US12744175
    • 2008-11-14
    • Kentaro NishimuraTetsuya MiuraAkimasa YoshidaSoshi MiyaharaYusuke TodorokiTakashi Sakuyama
    • Kentaro NishimuraTetsuya MiuraAkimasa YoshidaSoshi MiyaharaYusuke TodorokiTakashi Sakuyama
    • F16H25/22
    • F16H25/2247F16H2025/2271Y10T74/19749Y10T74/19772
    • There is provided a roller screw in which a twisted amount of an unloaded return path is reduced.The roller screw has a screw shaft 1 having a spiral roller-rolling surface is on an outer peripheral surface thereof; a nut 2 having a spiral loaded roller-rolling surface 2a on an inner peripheral surface thereof, the spiral loaded roller-rolling surface being opposed to the roller-rolling surface is of the screw shaft 1; a circulation member 7 arranged in the nut 2 and formed to have an unloaded return path 8 connecting one end and the other end of the loaded roller-rolling surface 2a, whose turn number is less than one, of the nut 2; and a plurality of rollers 4 arranged in a one-turn roller circulation path composed by a loaded roller-rolling path 6 and the unloaded return path 8. The circulation member 7 guides the rollers which have moved and arrived at the one end of the loaded roller-rolling path 6 having less than one turn, to the unloaded return path 8, and then returns the rollers to the other end of the loaded roller-rolling path 6 having less than one turn. The number of turns of the loaded roller-rolling path 6 is set to be less than one turn, whereby the rollers 4 which have arrived at one end of the loaded roller-rolling path 6 can be transferred to the other end of the loaded roller-rolling path 6 without changing their attitudes.
    • 提供了一种滚子丝杠,其中卸载的返回路径的扭转量减小。 滚子丝杠具有螺旋滚子滚动面的螺旋轴1在其外周面上; 在其内周面上具有螺旋负载的滚动滚动面2a的螺母2与滚子滚动面相对的螺旋加载滚动滚动面是螺杆轴1; 布置在螺母2中并且形成为具有将螺母2的转数小于1的加载的滚动滚动面2a的一端与另一端连接的无载返回路径8的循环构件7; 以及多个辊4,其布置在由加载的滚动滚动路径6和未加载的返回路径8组成的单圈辊循环路径中。循环构件7引导已经移动并到达加载的滚动路径的一端的辊 具有小于1转的滚动滚道6到无载返回路径8,然后将辊返回到具有小于一圈的负载滚动滚动路径6的另一端。 负载滚动滚动路径6的匝数被设定为小于一圈,从而可以将已经到达负载的滚动滚动路径6的一端的辊4传递到负载辊的另一端 滚动路径6,而不改变他们的态度。
    • 40. 发明申请
    • CANTILEVER DEVICE AND CANTILEVER CONTROLLING METHOD
    • CANTILEVER设备和CANTILEVER控制方法
    • US20090293161A1
    • 2009-11-26
    • US12274511
    • 2008-11-20
    • Masaharu KurodaKentaro NishimuraTakashi SomeyaHiroshi Yabuno
    • Masaharu KurodaKentaro NishimuraTakashi SomeyaHiroshi Yabuno
    • G01N13/16G12B21/08
    • G01Q10/065Y10S977/863
    • The amplitude control of a cantilever based on the van der Pol model is performed through a feedback using the measurement data on a deflection of the cantilever. A self-oscillating circuit integrates a deflection angle signal of a cantilever detected by a deflection angle measuring mechanism using an integrator, multiplies a resulting integral value by linear feedback gain Klin generated by a gain generator, and an output corresponding to the linear feedback signal is generated. Also, the self-oscillating circuit cubes the deflection angle signal using analog multipliers, integrates the resulting values using integrators, multiplies the resulting integral values by a nonlinear feedback gain Knon generated by a gain generator, and an output corresponding to the nonlinear feedback signal is generated. Furthermore, the self-oscillating circuit 40 adds the outputs together using an adder, and a voltage signal VC for a piezo element is generated.
    • 基于范德波尔模型的悬臂的幅度控制通过使用悬臂偏转测量数据的反馈进行。 自振荡电路使用积分器将由偏转角测量机构检测到的悬臂的偏转角信号进行积分,将由积分器生成的线性反馈增益Klin的积分值乘以与线性反馈信号相对应的输出, 生成。 此外,自振荡电路使用模拟乘法器对偏转角信号进行立方体,使用积分器对结果值进行积分,将得到的积分值乘以由增益发生器产生的非线性反馈增益Knon,对应于非线性反馈信号的输出为 生成。 此外,自振荡电路40使用加法器将输出相加,产生用于压电元件的电压信号VC。