Split bearing arrangement and method of making same
First Claim
1. Split bearing arrangement for a machine housing comprising:
- a bearing block and a bearing cover made of materials of different hardnesses, wherein the bearing cover is made of an iron material and is clampably arranged relative to the bearing block and has sharp-edged pointed projections which protrude above a clamping face and which, in an initial mounting of the bearing cover with a particular required force, is capable of being pressed into an opposite clamping face of the bearing block which is made of a light metal, wherein grooves are provided in the clamping face of the bearing cover, wherein the projections of the bearing cover have one of a cutting edge and a pyramid profile, and have (i) an edge angle α
≈
50°
-110°
, (ii) an edge height “
H”
above the clamping face of the bearing cover which is between 0.25 mm-1.5 mm, and (iii) rounded grooves with radii R=0.15 mm-0.30 mm that are cut within respective radius size, R, into the clamping face so as to adjoin edge flanks of the projections, wherein the grooves are located to receive material of the bearing block that is displaced when the projections of the bearing cover are pressed into the bearing block.
1 Assignment
0 Petitions
Accused Products
Abstract
A split bearing arrangement in a machine housing, particularly a crankshaft journal bearing for piston machines. The split bearing arrangement including a bearing block and a bearing cover that are made of materials of different hardnesses. In order to provide a material anchoring between the bearing cover and the bearing block that can be subjected to high loads and is cost-effective to produce, the bearing arrangement provides the bearing cover, which is made of an iron material, with cutting-edge like projections protruding above its clamping faces and, furthermore, provides grooves in the corresponding clamping faces of the bearing cover and the bearing block. These grooves in an initial mounting of the bearing cover with the required force serve to receive the material of the bearing block that is displaced in the pressing-in process when the projections are pressed into the opposite clamping faces of the bearing block, which is made of a light metal.
22 Citations
27 Claims
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1. Split bearing arrangement for a machine housing comprising:
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a bearing block and a bearing cover made of materials of different hardnesses, wherein the bearing cover is made of an iron material and is clampably arranged relative to the bearing block and has sharp-edged pointed projections which protrude above a clamping face and which, in an initial mounting of the bearing cover with a particular required force, is capable of being pressed into an opposite clamping face of the bearing block which is made of a light metal, wherein grooves are provided in the clamping face of the bearing cover, wherein the projections of the bearing cover have one of a cutting edge and a pyramid profile, and have (i) an edge angle α
≈
50°
-110°
, (ii) an edge height “
H”
above the clamping face of the bearing cover which is between 0.25 mm-1.5 mm, and (iii) rounded grooves with radii R=0.15 mm-0.30 mm that are cut within respective radius size, R, into the clamping face so as to adjoin edge flanks of the projections,wherein the grooves are located to receive material of the bearing block that is displaced when the projections of the bearing cover are pressed into the bearing block. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. Split bearing arrangement for a machine housing comprising:
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a bearing block having a first hardness and including a first clamping face;
a bearing cover having a second hardness and including a second clamping face and being clampably arranged relative to the bearing block, wherein the second clamping face includes sharp-edged projections formed by edge flanks which protrude beyond the clamping face of the bearing cover, the edge flanks being adjoined by grooves cut into the second clamping face, the projections being pressed into the first clamping face of the bearing block when the bearing cover is clamped to the bearing block with a particular force;
wherein the grooves in the second clamping face of the bearing cover are located to receive material of the bearing block that is displaced when the projections of the bearing cover are pressed into the clamping face of the bearing block. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of making a split bearing arrangement for a machine housing comprising:
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providing a bearing block having a first hardness and including a first clamping face;
providing a bearing cover having a second hardness and including a second clamping face, the second clamping face including sharp-edged projections formed by edge flanks which protrude beyond the clamping face of the bearing cover, the edge flanks being adjoined by grooves cut into the second clamping face, clamping the first clamping face of the bearing block to the second clamping face of the bearing cover with a particular force such that the projections of the bearing cover are pressed into the first clamping face of the bearing block and the grooves formed in the second clamping face of the bearing cover operate to receive material of the bearing block which is displaced when the projections of the bearing cover are pressed into the clamping face of the bearing block. - View Dependent Claims (24, 25, 26, 27)
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Specification