会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明授权
    • Ultrasonic motor
    • 超声波电机
    • US5115161A
    • 1992-05-19
    • US620776
    • 1990-12-03
    • Osamu MyohgaTadao Uchikawa
    • Osamu MyohgaTadao Uchikawa
    • H01L41/09H02N2/16
    • H02N2/0045H02N2/106
    • An ultrasonic motor comprises a stator which generates a combined ultrasonic elliptic vibration which is a combined vibration of longitudinal and torsional vibrations, and a rotor which is in press-contact with the stator and driven by the ultrasonic elliptic vibration via a friction force between the rotor and the stator. The stator comprises a first piezoelectric element for generating the longitudinal vibration, a second piezoelectric element for generating the reacting vibration, a headmass having a large stiffness against said longitudinal vibration and a large inertial mass against the torsional vibration, and a rearmass. In the ultrasonic motor, the resonance frequencies of the longitudinal and torsional vibrations are equal, so that the ultrasonic elliptic vibration is generated efficiently on the rotor in a high power state which is adapted in practical use.
    • 超声波马达包括:定子,其产生组合的超声波椭圆振动,其是纵向和扭转振动的组合振动;以及与定子压接并由超声波椭圆振动驱动的转子,通过转子之间的摩擦力 和定子。 定子包括用于产生纵向振动的第一压电元件,用于产生反作用振动的第二压电元件,抵抗所述纵向振动具有大刚度的头盔和抗扭转振动的大惯性质量,以及重新制动。 在超声波马达中,纵向和扭转振动的共振频率相等,从而在适用于实际使用的高功率状态下,在转子上有效地产生超声波椭圆振动。
    • 5. 发明授权
    • Longitudinal-torsional resonance ultrasonic motor with improved support
structure
    • 具有改进的支撑结构的纵向 - 扭转共振超声波马达
    • US5319278A
    • 1994-06-07
    • US72721
    • 1993-06-07
    • Osamu MyohgaTakeya HashiguchiTakeshi Inoue
    • Osamu MyohgaTakeya HashiguchiTakeshi Inoue
    • H01L41/09H02N2/12H01L41/08
    • H02N2/0045H02N2/0055H02N2/106
    • An ultrasonic motor comprises a rotor and a stator between which a pressurized face-to-face contact is established. The stator includes a longitudinal vibrator for producing a longitudinal thrust in the axial direction thereof and a torsional vibrator for transmitting a torsional thrust to the rotor in response to a longitudinal thrust timely generated by the longitudinal vibrator. The stator is supported by a structure which comprises a ring portion secured to the stator and a plurality of limb portions radially extending from the ring portion. Each of the limb portions has such an effective length and a width that the oscillation frequency of the motor matches the primary resonant frequency of a vibration of the limb portion generated on a plane normal to the axial direction of the stator and has such a thickness that the oscillation frequency matches an intermediate point between adjacent antiresonant frequencies of a vibration of the limb portion generated in the axial direction of the stator.
    • 超声波马达包括转子和定子,在该定子之间建立加压的面对面接触。 定子包括用于在其轴向方向上产生纵向推力的纵向振动器和用于响应由纵向振动器及时产生的纵向推力将扭转推力传递到转子的扭转振动器。 定子由包括固定到定子的环部分和从环部分径向延伸的多个分支部分的结构支撑。 每个肢体具有这样的有效长度和宽度,使得电动机的振荡频率与在与定子的轴向方向垂直的平面上产生的肢体部分的振动的初级共振频率匹配,并且具有这样的厚度: 振荡频率与在定子的轴向产生的肢体部分的振动的相邻反共振频率之间的中间点相匹配。