Elevator gearless traction machine construction
A flexible construction for an elevator gearless traction drive machine having a frame that is easily adaptable to traction sheaves of differing widths and diameters while providing the necessary stability for the drive components without an additional structure. The frame is comprised of a pair of frame members joined by a plurality connecting rods. The connecting rods can be mounted in various positions based on the diameter of the sheave to avoid interference between the drive mount and suspension means. Longer or shorter connecting rods may be used based on the width of the sheave.
1. An elevator machine mount comprising:
a first frame member having
a first bearing mounting aperture therein and
a first plurality of holes;
a second frame member, spaced from said first frame member, and having
a second bearing mounting aperture therein and
a second plurality of holes;
said first plurality of holes and said second plurality of holes being oriented such that the holes in said first frame member and the holes in said second frame member are substantially aligned in pairs;
a motor located proximate and in alignment with one of said frame members, said motor having a third plurality of holes each oriented substantially in alignment with each one of said pairs;
a plurality of connecting rods, each connecting rod having a first end passing through one of said plurality of holes in said first frame member, a second end passing through the substantially aligned hole in said second frame member, and one of said ends passing through the substantially aligned hole in said motor; and
fasteners located on said first end and said second end of each of said plurality of connecting rods.
2. The elevator machine mount of claim 1 wherein each of said plurality of connecting rods has
a first shoulder adjacent said first frame member; and
a second shoulder adjacent said second frame member,
said first shoulder and said second shoulder being positioned to separate said first frame member and said second frame member.
3. The elevator machine mount of claim 1 wherein a spacer bushing is positioned about each of said plurality of connecting rods between said first frame member and said second frame member.
4. The elevator machine mount of claim 1 wherein said first and second ends of said connecting rods are threaded, and wherein said fasteners comprise nuts engaged on said ends.
5. The elevator machine mount of claim 1 further including a spacer about each of said plurality of connecting rods adjacent to said second frame member.
6. The elevator machine mount of claim 2 wherein said first and second ends of said connecting rods are threaded, and wherein said fasteners comprise nuts engaged on said ends.
7. The elevator machine mount of claim 2 further including a spacer about each of said plurality of connecting rods adjacent to said second frame member.
8. The elevator machine mount of claim 6 further including a spacer about each of said plurality of connecting rods adjacent to said second frame member.
9. The elevator drive machine according to the claim 1 , further including:
a shaft having a first end and a second end, passing through and supported by said a first bearing and a second bearing located in said first and second bearing mounting apertures; and
a sheave forming part of said shaft.
10. The elevator machine mount of claim 9 wherein said motor is of frameless construction.
11. The elevator machine mount of claim 9 further including:
a brake mounted on said shaft opposite said motor; and
a suspension for an elevator car mounted on said sheave.
12. The elevator machine mount of claim 11 wherein said suspension is one of the group consisting of sisal core ropes, synthetic ropes, steel ropes, and flat belts.
13. The elevator machine mount of claim 11 wherein said brake is a disk brake.