Magnetic pole piece device and magnetic gear device

A technology of magnetic gears and pole pieces, applied in transmissions, belts/chains/gears, mechanical equipment, etc., can solve problems such as reduced torque transmission efficiency and increased losses, to improve displacement resistance, expand design freedom, Effect of suppressing interference between magnetic pole piece device and magnet excitation

Pending Publication Date: 2022-08-05
MITSUBISHI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the reinforcing member is made of a metal with a high modulus of elasticity, there is a problem that an eddy current is generated in the modulating magnetic pole due to the magnetism of the metal, and the resulting loss increases and the torque transmission efficiency decreases.

Method used

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  • Magnetic pole piece device and magnetic gear device
  • Magnetic pole piece device and magnetic gear device
  • Magnetic pole piece device and magnetic gear device

Examples

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Embodiment Construction

[0025] Hereinafter, some embodiments of the present invention will be described with reference to the drawings. However, the dimensions, materials, shapes, and relative arrangements of components described in these embodiments or shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative examples.

[0026] For example, expressions such as "in a certain direction", "along a certain direction", "parallel", "orthogonal", "center", "concentric" or "coaxially" indicating a relative or absolute arrangement do not only mean strictly Such an arrangement also shows a state in which it is relatively displaced by an angle or distance with a tolerance or a degree of obtaining the same function.

[0027] For example, expressions such as "same", "equal", and "homogeneous" indicate that things are equal not only to be strictly equal, but also to have tolerances or differences in the degree that the same function can be obtained.

[0028] ...

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PUM

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Abstract

A magnetic pole piece device according to an embodiment is disposed between an inner diameter side magnet excitation and an outer diameter side magnet excitation of a magnetic gear, and includes: an annular member including a plurality of magnetic pole pieces disposed at intervals in a circumferential direction and a plurality of holding members disposed between the plurality of magnetic pole pieces; and a cover member comprising a composite material in which a matrix resin is impregnated with continuous fibers extending in the circumferential direction, the cover member being disposed on at least one of the outer circumferential surface and the inner circumferential surface of the annular member, and satisfying the relationship 1 / 6 tc < = t < = 1 / 2 tc, where tc is the gap between the annular member and the magnet excitation and t is the thickness of the cover member.

Description

technical field [0001] The present invention relates to a magnetic pole piece device and a magnetic gear device provided with the magnetic pole piece device. [0002] This application claims priority based on Japanese Patent Application No. 2019-232518 for which it applied on December 24, 2019, and uses the content here. Background technique [0003] As one type of gear device, there is a magnetic gear that can avoid wear, vibration, noise, etc. due to contact of teeth by non-contact transmission of torque and motion using the attractive force and reaction force of magnets question. Among the magnetic gears, there are two inner and outer magnet rotors arranged in a concentric shape, and a plurality of magnetic magnets sandwiched between these magnet rotors and arranged at equal intervals in the circumferential direction by, for example, so-called pole pieces. A magnetic flux modulated magnetic gear composed of a pole piece modulated magnetic pole uses the modulated magneti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H49/00
CPCF16H49/00H02K49/102H02K2213/03H02K51/00
Inventor 清水隆之佐佐木幹人矶部真一梅田彰彦汤下笃
Owner MITSUBISHI HEAVY IND LTD
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