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Magnetic coupling device

A magnetic coupling and magnet technology, applied in the direction of electromechanical devices, transmission devices, electric brakes/clutches, etc., can solve problems such as increased burden on bearing components, achieve the effects of reducing thrust load, good torque transmission, and miniaturization

Inactive Publication Date: 2011-04-27
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
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Effect test

Embodiment approach 1

[0033] figure 1 It is a side sectional view schematically showing the magnetic coupling device according to Embodiment 1 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 .

[0034] Such as figure 2 As shown, the driving side rotating body 10 is in the form of a disk, and the driving shaft 11 is provided so that the rotating shaft L passes through the center of the driving side rotating body 10 . More specifically, the drive-side rotary body 10 is provided with a drive shaft 11 protruding from the action surface 12 , and is provided rotatably around a rotation axis L that is the axis of the drive shaft 11 . The drive shaft 11 is connected to a drive mechanism 13 , and the driving force from the drive mechanism 13 is supplied to the drive side rotating body 10 via the drive shaft 11 , whereby the drive side rotating bo...

Embodiment approach 2

[0048] Figure 5 It is a side sectional view schematically showing the magnetic coupling device according to Embodiment 2 of the present invention. In addition, the same code|symbol is attached|subjected and demonstrated to the part which has the same structure as the magnetic coupling device of Embodiment 1 mentioned above.

[0049] 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 .

[0050] Such as Figure 6 As shown, the driving side rotating body 10 is in the form of a disk, and the driving shaft 11 is provided so that the rotating shaft L passes through the center of the driving side rotating body 10 . More specifically, the drive-side rotary body 10 is provided with a drive shaft 11 protruding from the action surface 12 , and is provided rotatably around a rotation axis L that is the axis of the drive shaft 11 . The drive shaft 11 is co...

Embodiment approach 3

[0076] Figure 8 A magnetic coupling device according to Embodiment 3 of the present invention is schematically shown, and is a side cross-sectional view showing a part thereof in section. In addition, set Figure 8 In the illustration, the left side is the front and the right side is the rear. The magnetic coupling device exemplified here includes a pulley (first rotating body) 60 and a driven side rotating body (second rotating body) 70 .

[0077] The pulley 60 has a substantially cylindrical shape with an open front and a closed rear. For example, a cover 80 made of a magnetic body or the like is attached to the pulley 60 by screws B or the like, and the cover 80 closes the front side of the pulley 60 . A recess 61 is formed at the rear center of the pulley 60 , and a through hole 63 is formed at the center of the bottom wall 62 of the recess 61 , that is, at the rear center of the pulley 60 . Put the front portion C1 of the compressor main body C into the concave porti...

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Abstract

A magnetic coupling device reduced in size and configured such that the magnetic coupling device can excellently transmit torque by suppressing movement of one rotating body in the direction of a rotation axis (L) in which direction said rotating body approaches and separates from the other rotating body. A magnetic coupling device for transmitting torque by magnetic force acting between acting surfaces (12, 21) of a drive-side rotating body (10) and a driven-side rotating body (20) is provided with a first magnet group (14) having first magnets (15) equidistantly arranged on the acting surface (12) in the circumferential direction of the rotation axis (L), a second magnet group (23) having second magnets (24) equidistantly arranged on the acting surface (21) in the circumferential direction of the rotation axis (L) so as to be located at positions close to the rotation axis (L), and a third magnet group (25) having third magnets (25) equidistantly arranged in the circumferential direction of the rotation axis (L) at portions outward from the second magnets (24). The third magnets (26) have substantially the same area as the second magnets (24) and having a different polarity fromthe the second magnets (24) located between the rotation axis (L) and the third magnets (26).

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