摘要:
A first spacer, a second tubular member, and a second spacer are externally fitted and fixed to an outer peripheral surface of a nut. The second tubular member is formed by stacking a plurality of silicon steel plates without any gap, and is arranged between the first spacer and the second spacer axially. The outer diameter of an outer peripheral surface of the second tubular member is made larger than the outer diameter of an outer peripheral surface of the first spacer and the outer diameter of an outer peripheral surface of the second spacer. A detection surface of a first displacement detector is made to radially face a contact portion between the second spacer and the second tubular member, while a detection surface of a second displacement detector is made to radially face a contact portion between the first spacer and the second tubular member.
摘要:
A rotating electric machine in which an adequate magnetic supporting force can be produced even when the gap length of the rotator is long. The rotating electric machine comprises a rotator (31) mounted on the main shaft and a stator so provided as to enclose the rotator. The rotator has a first rotator section (32) producing a torque in the circumferential direction of the main shaft or the torque and the supporting force and a second rotator section (33) producing a shaft supporting force outward in the radial direction of the main shaft. The first and second rotator sections are arranged in tandem along the main shaft.
摘要:
A first spacer, a second tubular member, and a second spacer are externally fitted and fixed to an outer peripheral surface of a nut. The second tubular member is formed by stacking a plurality of silicon steel plates without any gap, and is arranged between the first spacer and the second spacer axially. The outer diameter of an outer peripheral surface of the second tubular member is made larger than the outer diameter of an outer peripheral surface of the first spacer and the outer diameter of an outer peripheral surface of the second spacer. A detection surface of a first displacement detector is made to radially face a contact portion between the second spacer and the second tubular member, while a detection surface of a second displacement detector is made to radially face a contact portion between the first spacer and the second tubular member.
摘要:
A variable-speed dynamotor has a stator having a first set of windings that provide a number of poles for rotating a rotor and a second set of windings that provide a number of poles different from the number of poles provided by the first set of windings. Voltages or currents supplied to the second set of windings are controlled to generate radial forces acting on the rotor for thereby controlling a radial position of the rotor, suppressing vibrations of the rotor, adjusting rotational balancing of the rotor, and controlling radial damping of the rotor.
摘要:
A rolling bearing device with a sensor includes a rotational component estimator that extracts a rotational synchronization component included in the rotation of an inner shaft relative to an outer ring from each of a signal output by a first displacement detector and a signal output by a second displacement detector. The rotational component estimator performs rotational operation and integration operation.
摘要:
There is provided a shaft and sleeve assembly structure for an automatic transmission which can be assembled by inserting a shaft into a needle roller bearing so that a seal ring fitted to the shaft is allowed to pass through inside of the needle roller bearing without causing a seal ring to be damaged. In this assembly structure, in the process of inserting the shaft 11 into the needle roller bearing 25, the seal ring 22 fitted to the shaft 11, upon contact with a radially inner end portion 36A of a flange portion 36 of an outer ring 33 of the needle roller bearing 25, is allowed to pass through the radial inside of the flange portion 36 smoothly along a curved surface 37 bent axially inward. Further, the seal ring 22 fitted to the shaft 11, upon contact with axial one end of a cage 32 of the needle roller bearing 25, is allowed to pass through the radial inside of a flange portion 38 provided at axial one end of the cage 32 smoothly along a curved surface 41 of the flange portion 38.
摘要:
A generator device has a reluctance generator. The reluctance generator comprises stator coils and an I-shaped rotor. The stator coils includes a winding phase for being supplied with a 90.degree.-leading armature current to generate a no-load induced electromotive force. The I-shaped rotor has an extremely small magnetic reluctance in a first direction normal to a rotational axis thereof and a large magnetic reluctance in a second direction normal to the first direction.
摘要:
A rolling bearing includes rolling elements, an inner ring which includes a raceway surface on which the rolling elements roll on an outer circumference thereof, and an outer ring which includes a raceway surface on which the rolling elements roll and which receives a radial load and a load directed to one side of an axial direction from the rolling elements on an inner circumference thereof. A closure member for closing an inner circumferential side opening of the outer ring is formed integrally at an end portion of the outer ring which lies on the one side of the axial direction or the outer ring is fitted in a cylindrical portion of the closure member.
摘要:
A high speed electromagnetic rotating machine is arranged to avoid heat generation due to mutual inductance between a stator and rotor and has a stator provided with drive windings for generating a rotating magnetic field to rotate the rotor and position control windings fitted to the stator for generating a magnetic field having a different number of poles than that of the drive windings for controlling the axial or radial position of the rotor when an electric current sufficient to unbalance the magnetic field applied to the rotor by the drive windings is supplied to the position control windings. The rotor has a cage conductors interconnected to form a plurality of closed circuits mounted to the rotor, the closed circuits having a number of poles set so that there is no mutual inductance between the position control windings and the cage conductors. The cage conductors are connected by circumferentially-divided end rings rigidly connected by a retaining ring or by axially divided end rings directly connected to the rotor shaft. In one embodiment, the cage conductors are arranged in four-pole closed circuits, the drive windings have four poles, and the position control windings have two poles. In an alternative embodiment, the cage conductors may be arranged in two-pole closed circuits, the drive windings have two poles and the position control windings have four poles.
摘要:
This invention relates to a switched reluctance rotator according to which a rotor can be rotated at a high speed without generating electromagnetic vibration at a rotating shaft and in which a current for generating of torque and a current for generating a radial force are passed through windings on the protruding poles of the stator or a winding for generating torque, and a winding for generating a radial force are wound on the protruding poles of the stator.