JP2016001054A5

JP2016001054A5 -

Info

Publication number: JP2016001054A5
Application number: JP2015016914A
Authority: JP
Filing date: 2015-01-30
Publication date: 2016-11-24
Anticipated expiration: 2035-01-30

Description

非磁性部材５ａの幅１５ｍｍは、可動子２の幅の約４０％に相当する。そうすると、可動子２を吸引する際と、可動子２を保持する際に、それぞれ十分な電磁トルクを得るには、非磁性部材５ａの幅としては、可動子２の幅の１２．５％から４０％程度に相当する幅に設定することが最適である。 The width 15 mm of the nonmagnetic member 5 a corresponds to about 40% of the width of the mover 2. Then, when attracting the mover 2 and holding the mover 2, in order to obtain sufficient electromagnetic torque, the width of the nonmagnetic member 5 a is from 12.5 % of the width of the mover 2. It is optimal to set the width corresponding to about 40%.

Claims

A stator,
A mover arranged to face the stator and supported rotatably with respect to the stator;
A coil that generates magnetic flux for rotating the mover toward the side closer to the stator;
An elastic part having an urging force to rotate the mover to the side away from the stator;
The rotor is braked by rotating the mover toward the side away from the stator, and the brake is released by rotating the mover toward the side closer to the stator;
A nonmagnetic portion provided on at least one of the stator and the mover,
The non-magnetic portion is an electromagnetic brake device that is disposed on a side that becomes a rotation center when the mover rotates with respect to the stator.

The electromagnetic brake device according to claim 1, wherein the nonmagnetic part is a nonmagnetic member.

One of the above is provided with a recess,
The electromagnetic brake device according to claim 2, wherein the nonmagnetic member is disposed in the recess.

The electromagnetic brake device according to claim 2 or 3, wherein the non-magnetic member is fixed to either one of the non-magnetic members by screws.

The electromagnetic brake device according to claim 4, wherein the nonmagnetic member includes a height adjusting portion.

The mover has a first width as a length from the first end on the side serving as the rotation center to the second end on the opposite side to the side serving as the rotation center,
The nonmagnetic member has a second width as a length from the third end portion on the side serving as the rotation center to the fourth end portion on the side opposite to the rotation center side,
The electromagnetic brake device according to any one of claims 2 to 5, wherein the second width is set to 12.5 % to 40% of the first width.

The electromagnetic brake device according to claim 2, wherein the nonmagnetic member is disposed as a spacer between the stator and the mover.

The electromagnetic brake device according to claim 1, wherein the nonmagnetic portion is a gap.

The electromagnetic brake device according to any one of claims 1 to 8, wherein a buffer member is interposed between the mover and the stator.

An elevator apparatus comprising the electromagnetic brake device according to any one of claims 1 to 9,
With a basket,
A hoist for raising and lowering the basket,
The electromagnetic brake device is an elevator device disposed in the hoisting machine.