Host and motor for elevator
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorNaoki Hashiguchi
Life of this patent
Estimating the term…
Abstract
A thin type elevator hoisting machine is provided with a stator mounting portion at which a stator core of a motor is mounted to a surface of a side opposite to a sheave in a sheave rotation centerline direction of the hoisting machine, characterized in that a hat shape fixed frame member in which the stator mounting portion and a fixed main shaft that supports rotation of a rotor through a bearing are integrated. The thin type elevator hoisting machine is characterized in that a brake device in which an inner radial surface of a cylindrical rotor mounting portion forms a braking surface. A motor is characterized in that the width of a magnet constituting a rotor is larger than the width of the stator core. The thin type elevator hoisting machine is provided with the motor.
Claims13
1-13. (canceled)
An elevator hoisting machine having a thin shape, comprising:
- a sheave;
- a fixed main shaft that supports rotation of the sheave through a bearing;
- a rotation support frame comprising a rotor mounting portion to which a rotor is mounted, the rotation support frame being formed integrally with the sheave or being fixed to the sheave;
- a fixed frame body comprising a hollow extended portion and a cylindrical portion, the extended portion having a disc-like shape and being extended in a circumferential direction of a rotation centerline of the sheave, the cylindrical portion being bent approximately in a vertical direction from the extended portion and being extended toward the fixed main shaft;
- a stator of a motor formed larger than the sheave;
- and
- a stator mounting portion to which the stator is mounted, the stator mounting portion being provided to the fixed frame body;
- wherein the cylindrical portion overlaps the rotation support frame in the circumferential direction of the rotation centerline of the sheave.
An elevator hoisting machine of a thin type having a sheave whose thickness in a rotation centerline direction is thinner than an outside dimension in a radial direction, the elevator hoisting machine comprising a stator mounting portion that supports a stator core of a motor provided in a surface of a side opposite to the sheave in the sheave rotation centerline direction of the hoisting machine, and a fixed main shaft that supports rotation of a rotor through a bearing, wherein a fixed frame member provided with a hat shape cross sectional shape is provided in the vicinity of a brake device mounting portion.
Dependencies are inferred from the claim text.