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Magnetic coupling device

A magnetic coupling and magnet technology, applied in electromechanical devices, transmissions, electric brakes/clutches, etc.

Inactive Publication Date: 2013-03-20
SHOEI ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006]However, in the magnetic coupling device having a disk-shaped driving side rotating body and a driven side rotating body, the driving side rotating body and the driven side Magnetic attraction is generated between the rotating bodies along the direction of the rotating shaft, so the burden on the bearing parts supporting the rotating body increases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0034] figure 1 It is a side cross-sectional view schematically showing the magnetic coupling device according to the first embodiment of the present invention. The magnetic coupling device exemplified here is configured to include a driving-side rotating body (first rotating body) 10 and a driven-side rotating body (second rotating body) 20.

[0035] Such as figure 2 As shown, the driving side rotating body 10 is in the form of a disc, and a driving shaft 11 is provided such that the rotating shaft L passes through the center of the driving side rotating body 10. In more detail, the drive-side rotating body 10 is provided with a drive shaft 11 so as to protrude from the acting surface 12, and is provided to be rotatable about the axis of the drive shaft 11, that is, the rotation axis L. The drive shaft 11 is connected to the drive mechanism 13, and the drive force from the drive mechanism 13 is supplied to the drive side rotating body 10 via the drive shaft 11, whereby the dri...

Embodiment approach 2

[0049] Figure 5 It is a side cross-sectional view schematically showing a magnetic coupling device according to Embodiment 2 of the present invention. In addition, the same reference numerals are assigned to parts having the same configuration as the magnetic coupling device of the first embodiment described above for description.

[0050] The magnetic coupling device exemplified here is configured to include a driving-side rotating body (first rotating body) 10 and a driven-side rotating body (second rotating body) 20.

[0051] Such as Image 6 As shown, the driving side rotating body 10 is in the form of a disc, and a driving shaft 11 is provided such that the rotating shaft L passes through the center of the driving side rotating body 10. In more detail, the drive-side rotating body 10 is provided with a drive shaft 11 so as to protrude from the acting surface 12, and is provided to be rotatable about the axis of the drive shaft 11, that is, the rotation axis L. The drive shaf...

Embodiment approach 3

[0077] Figure 8 The magnetic coupling device according to Embodiment 3 of the present invention is schematically shown, and is a side cross-sectional view showing a part of the magnetic coupling device in cross section. In addition, suppose Figure 8 The left side is the front and the right side is the rear for explanation. The magnetic coupling device illustrated here is configured to include a pulley (first rotating body) 60 and a driven-side rotating body (second rotating body) 70.

[0078] The pulley 60 has a substantially cylindrical shape with an open front side and a closed rear side. For example, a cover 80 made of a magnetic body or the like is attached to the pulley 60 with screws B or the like, and the cover 80 closes the front side of the pulley 60. A recess 61 is formed in the center of the rear side of the pulley 60, and a through hole 63 is formed in the center of the bottom wall 62 of the recess 61, that is, in the center of the rear of the pulley 60. Put the f...

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PUM

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Abstract

A reduced-size magnetic coupling device includes a first magnet group having a plurality of first magnets arranged on an interaction surface at equal intervals in the direction of the circumference about the rotation axis; a second magnet group having a plurality of second magnets arranged on an interaction surface at equal intervals in the direction of the circumference about the rotation axis and in positions in the vicinity of the rotation axis; and a third magnet group having a plurality of third magnets that are arranged at equal intervals in the circumferential direction about the rotation axis and in positions outward with respect to the second magnets. The third magnets have an area approximately equal to that of the second magnets. Each third magnet has a magnetic pole different from that of the second magnet that is positioned between the third magnet and the rotation axis.

Description

technical field [0001] The present invention relates to a magnetic coupling device, and more specifically, to such a magnetic coupling device: the magnetic coupling device has a first rotating body and a second rotating body, and the first rotating body and the second rotating body are separated from each other by their active surfaces. and are arranged in an opposite manner, and can respectively rotate around a rotating shaft extending in a direction perpendicular to the action surface, utilizing the magnetic force generated between the action surfaces of the first rotator and the second rotator, from one side of the rotator Torque is transmitted to the rotating body on the other side. Background technique [0002] Conventionally, the following magnetic coupling device is known as an example of a rotation transmission mechanism that transmits torque in a non-contact manner. For example, on the inner peripheral surface of the driving side rotating body in a cylindrical form...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H49/00F16D7/02H02K49/00
CPCH02K49/108F04C15/0069H02K49/106
Inventor 操谷钦吾上田元彦
Owner SHOEI ENG