Provided is a contactless vertical transfer device using a linear motor. The contactless vertical transfer device using a linear motor includes: a transfer unit for picking up an article; and a linear motor located on a side portion of the transfer unit to move the transfer unit, wherein the linear motor comprises at least one driving unit that is located on a side portion of the transfer unit and provided with a mover which a coil is wound; and a rail unit that is located apart from the mover by a predetermined distance in a lateral direction and provided with a plurality of magnet portions disposed in a transfer direction of the transfer unit. The transfer unit is moved along the rail unit by a thrust force of the mover and the magnet portion.

A cylindrical part of a rotor for an eddy current deceleration device of the present embodiment has a chemical composition consisting of, by mass %, C: 0.05 to 0.15%, Si: 0.10 to 0.40%, Mn: 0.50 to 1.00%, P: 0.030% or less, S: 0.030% or less, Mo: 0.20 to 1.00%, Nb: 0.020 to 0.060%, V: 0.040 to 0.080%, sol. Al: 0.030 to 0.100%, B: 0.0005 to 0.0050%, N: 0.003 to 0.010%, Cu: 0 to 0.20%, Ni: 0 to 0.20%, Cr: 0 to 0.10%, and the balance: Fe and impurities, and in which the total area fraction of martensite and bainite in a microstructure is more than 95.0%, and the number density of carbides having an equivalent circular diameter of 100 to 500 nm is 0.35 to 0.75 particles/μm.sup.2.

A motor may include a rotor and a stator. The stator may include first and second stator assemblies. Each stator assembly may include a coil wound around a tube-shaped body part of a bobbin comprising a terminal block; and first and second stator cores disposed on opposite sides of the coil. The first stator cores of the first and second stator assemblies are welded together at outer peripheries of the first stator cores of the first and second stator assemblies. The welded portion may be covered by the terminal block of one of the first stator assembly or the second stator assembly on an outer side in the radial direction with a predetermined space between the welded portion and the terminal block.

An internal magnetic resistance system for use with a fitness device includes an axle, inertia wheel, transmission wheel, magnetic permeable ring and electromagnet. The inertia wheel is disposed at the axle and has a protruding ring portion. The transmission wheel connects to the inertia wheel and transfers an external force to the inertia wheel to cause the inertia wheel to rotate. An outer circumferential surface of the magnetic permeable ring is fixedly disposed on an inner circumferential surface of the protruding ring portion such that the magnetic permeable ring rotates together with the inertia wheel. The electromagnet is disposed in the protruding ring portion and surrounded by the magnetic permeable ring. The electromagnet has a support fixedly disposed at the axle and iron cores disposed at the support. Each said iron core is surrounded by a coil and separated from the magnetic permeable ring by a gap.

A magnetic control device for directly sensing the motion load value especially the one that has a magnetic resistance mechanism which is “floating” and pivoted on the inner edge of the outer ring body of a flywheel; an acting rod, one end of is locked on the outside of the magnetic resistance mechanism and synchronized with it, and the other end has a pressure applied member connected to the beam load cell; a torque value conversion unit for converting the load value of the beam load cell into a torque value; so as to achieves directly measuring the motion load value, which has the effect of improving the detection accuracy.

In some embodiments, two or more different types of stator structures may be disposed within a gap of an axial flux machine. Such arrangements may be advantageous, for example, for producing a machine optimized for multiple modes of operation, such as mechanical torque generation, conversion of mechanical torque to electrical power, and/or dissipation of mechanical power. Further, in some embodiments, an axial flux machine may include a planar stator having a winding arranged to be positioned within the machine's active region, and may further include at least one switch configured to be selectively closed to establish an electrical connection between respective ends of the winding at a time that the winding is not coupled to an external power source

The system includes: a driver; a rotating load configured to be driven into rotation by the driver; a controller, for controllably changing a rotation speed of the load; and a variable speed transmission, arranged between the driver and the load. The variable speed transmission includes a speed summing gear arrangement with a first input shaft, a second input shaft and an output shaft. The output shaft is drivingly coupled to the rotating load. The first input shaft is drivingly coupled to the driver. A continuous variable transmission device is mechanically coupled to the driver and to the second input shaft of the speed summing gear arrangement. The continuous variable transmission device is functionally coupled to the controller.

Described herein is an assembly and methods of use thereof for controlling or governing the relative speed of motion between the assembly parts via eddy current formation. The assembly and methods also may minimize the number of parts required and may minimize the number of moving parts thereby increasing the mechanical durability of the assembly compared to art designs that may have more moving parts and greater part complexity.

A generator-gearbox arrangement for a wind turbine includes a generator having a stator and a rotor interacting with one another, a functional component arranged on an end side of the generator and including an extension which points toward the rotor, and a magnetic rail brake arrangement including component parts fastened to the extension. The magnetic rail brake arrangement is designed to apply a braking action which is based on an operating principle of electromagnetic attraction between the magnetic rail brake arrangement and at least one of the rotor and the functional component.

Line dispensing devices include a coupling transmission, a retraction mechanism, and a rotor that rotates around a shaft. Rotation of the rotor causes a portion of at least one pivotable member to move into and out of a magnetic field.