Auger car bearing support
First Claim
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1. A support for the shaft of a high wall mining machine, comprising:
- an outer bearing, defining a cylindrical inner surface and a partial spherical outer surface, said inner and outer surfaces being symmetrical about a longitudinal axis;
said outer bearing also defining at least one diametrically oriented lubrication opening extending from said inner surface to said outer surface along a first diameter;
said outer bearing also defining forward and rear thrust surfaces for supporting loads in the direction of said longitudinal axis, said forward thrust surface having an arcuate contour;
wherein said outer bearing comprises first and second outer bearing halves which are substantially mirror images of each other;
each outer bearing half defining;
first and second substantially planar edges lying along a plane extending through said longitudinal axis and through a second diameter at right angles to said first diameter;
a first outer-bearing-securement opening extending parallel to said first diameter from the outer surface to the respective first planar edge; and
a second outer-bearing-securement opening extending parallel to said first diameter from the outer surface to the respective second substantially planar edge, wherein the first outer-bearing-securement opening of the first bearing half is aligned with the second outer-bearing-securement opening of the second bearing half at a first aligned pair of planar edges, and the first outer-bearing-securement opening of the second bearing half is aligned with the second outer-bearing-securement opening of the first bearing half at a second aligned pair of planar edges.
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Abstract
An auger shaft bearing support includes a multi-part inner bearing, a multi-part outer bearing, and a multi-part housing. The inner bearing is secured to the auger shaft and rotates with the auger shaft. The inner bearing has an outer surface that is received in the outer bearing.
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Citations
13 Claims
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1. A support for the shaft of a high wall mining machine, comprising:
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an outer bearing, defining a cylindrical inner surface and a partial spherical outer surface, said inner and outer surfaces being symmetrical about a longitudinal axis; said outer bearing also defining at least one diametrically oriented lubrication opening extending from said inner surface to said outer surface along a first diameter; said outer bearing also defining forward and rear thrust surfaces for supporting loads in the direction of said longitudinal axis, said forward thrust surface having an arcuate contour; wherein said outer bearing comprises first and second outer bearing halves which are substantially mirror images of each other; each outer bearing half defining; first and second substantially planar edges lying along a plane extending through said longitudinal axis and through a second diameter at right angles to said first diameter; a first outer-bearing-securement opening extending parallel to said first diameter from the outer surface to the respective first planar edge; and a second outer-bearing-securement opening extending parallel to said first diameter from the outer surface to the respective second substantially planar edge, wherein the first outer-bearing-securement opening of the first bearing half is aligned with the second outer-bearing-securement opening of the second bearing half at a first aligned pair of planar edges, and the first outer-bearing-securement opening of the second bearing half is aligned with the second outer-bearing-securement opening of the first bearing half at a second aligned pair of planar edges. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An auger shaft bearing support for use in auger cars used in high wall mining, comprising:
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an axially split inner bearing including at least first and second inner bearing portions each having an inner surface defining a radial direction for mounting to the auger shaft and an outer surface; an axially split outer bearing including at least first and second outer bearing portions, each having an inner surface with a profile which closely matches and provides rotational support for said outer surface of said inner bearing; wherein said inner bearing is harder than said outer bearing, is made from a heat treated low alloy steel and has a Rockwell hardness of at least 50 C and is polymer-coated, and said outer bearing is made from spinodal bronze with a Rockwell hardness of approximately 30 C; and a bearing housing including at least first and second housing portions defining a saddle which supports said outer bearing, said saddle having a partial-reverse-spherical contour.
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12. An auger shaft bearing support for use in auger cars used in high wall mining, comprising:
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an axially split inner bearing including at least first and second inner bearing portions each having an inner surface defining a radial direction for mounting to the auger shaft and an outer surface; an axially split outer bearing including at least first and second outer bearing portions, each having an inner surface with a profile which closely matches and provides rotational support for said outer surface of said inner bearing, wherein said inner surface of said inner bearing portion is cylindrically-profiled, said outer surface of said inner bearing is cylindrically-profiled, said inner surface of said outer bearing is cylindrically-profiled, and said outer surface of said outer bearing is partial-spherically-profiled; and a bearing housing including at least first and second housing portions defining a saddle which supports said outer bearing, said saddle having a partial-reverse-spherical contour. - View Dependent Claims (13)
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Specification