Low-friction slide-plates for rotary machines
First Claim
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1. A mounting arrangement for use at an interface between a movable machine component and a stationary foundation comprising:
- a substantially planar foundation plate adapted for attachment to the foundation wherein said foundation plate is provided with at least one elongated key adapted to cooperate with a corresponding keyway on the footplate of the machine component for guiding the machine component during thermal expansion; and
a plurality of slide-plate assemblies secured to the foundation plate, each slide-plate assembly comprising a mounting plate, a backing plate, and a low-friction pad overlying the backing plate, said plurality of slide-plate assemblies adapted to engage a footplate of the movable machine component.
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Abstract
A mounting arrangement for use at an interface between a movable machine component and a stationary foundation includes a substantially planar foundation plate adapted for attachment to the foundation; and a plurality of slide-plate assemblies secured to the foundation plate, each slide-plate assembly comprising a mounting plate, a backing plate, and a low-friction pad overlying the backing plate, the plurality of slide-plate assemblies adapted to engage a footplate of the movable machine component.
39 Citations
10 Claims
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1. A mounting arrangement for use at an interface between a movable machine component and a stationary foundation comprising:
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a substantially planar foundation plate adapted for attachment to the foundation wherein said foundation plate is provided with at least one elongated key adapted to cooperate with a corresponding keyway on the footplate of the machine component for guiding the machine component during thermal expansion; and a plurality of slide-plate assemblies secured to the foundation plate, each slide-plate assembly comprising a mounting plate, a backing plate, and a low-friction pad overlying the backing plate, said plurality of slide-plate assemblies adapted to engage a footplate of the movable machine component. - View Dependent Claims (2, 3, 4)
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5. A mounting arrangement for use at an interface between a movable machine component and a stationary foundation comprising:
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a substantially planar foundation plate adapted for attachment to the foundation wherein said foundation plate is provided with at least one elongated key adapted to cooperate with a corresponding keyway on a footplate of the machine component for guiding the machine component during thermal expansion; and a plurality of slide-plate assemblies secured to the foundation plate, each slide-plate assembly comprising a mounting plate, a backing plate secured to the mounting plate, and a low-friction pad overlying the backing plate;
wherein said low-friction pad is comprised of polytetrafluorethylene; and
wherein said mounting plate of each of said plurality of mounting plate assemblies is provided with a part-spherical seat located between said low-friction pad and said backing plate. - View Dependent Claims (6)
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7. An exhaust hood and foundation assembly for a steam turbine comprising an exhaust hood component provided with a substantially planar footplate;
- and a foundation plate secured to a stationary foundation wherein said foundation plate has a plurality of multi-layer slide-plate assemblies thereon for interfacing with said planar footplate, each multi-layer slide-plate assembly comprising a mounting plate, a backing plate, and a low-friction pad overlying the backing plate; and
wherein said foundation plate is provided with at least one elongated key cooperating with a corresponding keyway on a footplate of the exhaust hood component for guiding the exhaust hood component upon thermal expansion of the steam turbine. - View Dependent Claims (8, 9, 10)
- and a foundation plate secured to a stationary foundation wherein said foundation plate has a plurality of multi-layer slide-plate assemblies thereon for interfacing with said planar footplate, each multi-layer slide-plate assembly comprising a mounting plate, a backing plate, and a low-friction pad overlying the backing plate; and
Specification