Gearless drive machine for elevators

Details Gearless drive machine for elevators Gearless drive machine for elevators

1991-07-26

1992-09-22

Olszewski, Robert P.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

254362, 310258, B66B 1104

Patent

active

051488930

ABSTRACT:
A gearless drive machine for elevators has a machine frame on which are mounted a counter roller carrier, a bearing block and an end plate block. The elevator cable strand spacing can be adjusted by a counter roller coupled to the counter roller carrier, whereby both a left-hand and right-hand overhang of the counter roller is possible with the same construction of the machine frame. A main shaft is supported at two places at a drive output end by a moveable bearing mounted in the bearing block and a fixed bearing mounted in the end plate block. A drive pulley having brake disc is located between the bearings and is coupled to the main shaft by a first detachable coupling. The support of the drive pulley on both sides thereof allows great radial loads with only small deformations of the main shaft. A hoist motor supplied with alternating voltage has a stator with windings and a rotor with a rotor hub slidable onto the main shaft. A second detachable coupling at the driven end of the main shaft provides a firm connection between the main shaft and the rotor hub.

REFERENCES:
patent: 4355785 (1982-10-01), Tosato et al.
patent: 4433755 (1984-02-01), Ohtomi
patent: 4679661 (1987-07-01), Gibson
patent: 5010981 (1991-04-01), Heikkinen

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