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    • 1. 发明授权
    • Rotary drive apparatus with permanent magnets on the rotor and stator
    • 在转子和定子上具有永磁体的旋转驱动装置
    • US4533847A
    • 1985-08-06
    • US616187
    • 1984-06-01
    • Takaharu IdogakiIkuo HayashiHisasi KawaiKyo HattoriKazuhiro Sakurai
    • Takaharu IdogakiIkuo HayashiHisasi KawaiKyo HattoriKazuhiro Sakurai
    • H02K21/14H01F7/14H02K37/16H02K1/00
    • H01F7/145
    • A rotary drive apparatus including a frame having at least three holes; a yoke having a center portion and two side bar portions on opposite sides of the center portion, the center portion having a hole, coils mounted on the side bar portions of the yoke, a collar having a bore and being tightly mounted on the surface of the hole of the yoke, magnetic parameter changing elements being mounted on the surface of the bore of the collar, and a rotor having magnetic poles in the radial direction and being inserted into the bore of the collar with a predetermined clearance. In the apparatus, a first hole of the frame is parallel to a first direction of the apparatus and has a cross-section for tightly receiving the center portion of the yoke, and a second and third holes of the frame are in a second direction perpendicularly intersecting the first direction and being concentric with each other oppositely the first hole, the center portion of the yoke being fit into the first hole. The position of the collar is adjusted through the second hole during the adjustment, and the third hole passes a shaft connected to one end of the rotor.
    • 一种旋转驱动装置,包括具有至少三个孔的框架; 轭具有在中心部分的相对侧上的中心部分和两个侧杆部分,中心部分具有孔,安装在轭的侧杆部分上的线圈,具有孔并且紧紧地安装在 磁轭的孔,磁参数改变元件安装在轴环的孔的表面上,以及转子,其具有径向方向的磁极并以预定的间隙插入到轴环的孔中。 在该装置中,框架的第一孔平行于装置的第一方向,并且具有用于紧密地容纳轭的中心部分的横截面,并且框架的第二和第三孔垂直于第二方向 与第一方向相交并且与第一孔相对地彼此同心,轭的中心部分装配到第一孔中。 在调整期间,通过第二孔调节轴环的位置,并且第三孔通过连接到转子的一端的轴。
    • 7. 发明授权
    • Rotary actuator
    • 旋转执行机构
    • US4491815A
    • 1985-01-01
    • US487760
    • 1983-04-22
    • Takaharu IdogakiHisasi KawaiKyo HattoriKazuhiro Sakurai
    • Takaharu IdogakiHisasi KawaiKyo HattoriKazuhiro Sakurai
    • H02K33/02F02M3/06F02M3/07F16K31/06H01F7/13H01F7/14H01F7/08
    • H01F7/145F02M3/07F16K31/0682H01F7/13F02M2003/067
    • A rotary actuator for driving a fluid control valve comprises a yoke which forms a closed magnetic path an excitation coil which produces a magnetic flux in the yoke, a permanent magnet which is rotatably arranged in a through hole or in a slit formed in the yoke, and a restoring spring which produces a force acting against a rotational torque generated in the magnet by a main magnetic flux which flows through the yoke and the permanent magnet when the excitation coils is energized. Shielding portions are formed on both sides of the ends of the yoke, which ends oppose the permanent magnet, so as to substantially shield the permanent magnet together with the ends of the yoke, whereby a magnetic reluctance of a path of the magnetic flux remains substantially constant irrespective of the rotating position of the permanent magnet with respect to the yoke when the excitation coil is de-energized.
    • 用于驱动流体控制阀的旋转致动器包括形成闭合磁路的轭,其产生磁轭中的磁通量的励磁线圈,可旋转地布置在通孔中或形成在磁轭中的狭缝中的永磁体, 以及恢复弹簧,其通过在励磁线圈通电时流过磁轭的主磁通和永磁体产生作用于在磁体中产生的旋转扭矩的力。 屏蔽部分形成在轭的端部的两端,该端部与永磁体相对,以便基本上将永磁体与磁轭的端部一起屏蔽,由此磁通路径的磁阻基本上保持 当励磁线圈断电时,永磁体相对于磁轭的旋转位置是恒定的。
    • 10. 发明授权
    • Rotary actuator
    • 旋转执行机构
    • US4345228A
    • 1982-08-17
    • US256832
    • 1981-04-23
    • Takaharu IdogakiHisasi KawaiTakeshi MatsuiKyo HattoriKazuhiro Sakurai
    • Takaharu IdogakiHisasi KawaiTakeshi MatsuiKyo HattoriKazuhiro Sakurai
    • H02K33/02F16K31/06H01F7/14H02K26/00
    • F16K31/0682H01F7/145H02K26/00Y10T137/86863Y10T137/8782
    • A rotary actuator for imparting a rotational force to a rotary valve member of a multi-way valve device has a cylindrical housing and an electric motor housed therein and being operative to produce a torque corresponding to the input current supplied to the motor. The motor shaft is hollow and rotatably journalled by the end walls of the motor housing. A torsion bar is housed in the shaft and fixed at one end to one end of the shaft. The other end of the torsion bar is fixed to the housing so that, when rotational force is imparted by the motor to the shaft and thus the rotary valve member connected thereto, the torsion bar produces a return force applied to the shaft. The angular position of the other end of the torsion bar about the axis thereof is adjustable within a limited range. The actuator is suited to impart a rotational motion of less than 180.degree. and provides a reduced hysteresis in the rotation characteristics.
    • 用于向多通阀装置的旋转阀构件施加旋转力的旋转致动器具有容纳在其中的圆柱形壳体和电动机,并且可操作地产生与供应到电动机的输入电流相对应的转矩。 电动机轴是中空的并且可旋转地由电动机壳体的端壁支承。 扭杆容纳在轴中并且在一端固定在轴的一端。 扭杆的另一端固定在壳体上,使得当电动机向轴施加旋转力并因此连接到其上的旋转阀构件时,扭杆产生施加到轴上的返回力。 扭杆的另一端围绕其轴线的角度位置可在有限的范围内调节。 致动器适于赋予小于180°的旋转运动,并且在旋转特性中提供减小的滞后。