Cooling structure of bearing unit
A technology of cooling structure and bearing device, which is applied in the direction of bearing cooling, bearing assembly, bearing, etc.
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[0049] according to Figure 1 to Figure 8 , the first embodiment of the present invention will be described. picture figure 1 As shown, in the cooling structure of the bearing device J, the outer surfaces of the adjacent rolling bearings 1, 1 in the arrangement of the rolling bearings 1 arranged in three or more rows (in the illustrated example, four rows) in the axial direction are An outer ring spacer 4 and an inner ring spacer 5 are interposed between the rings 2, 2 and between the inner rings 3, 3, respectively. The outer ring 2 and the outer ring spacer 4 are provided on the inner periphery of the housing 6 , and the inner ring 3 and the inner ring spacer 5 are fitted on the outer periphery of the main shaft 7 as the rotation axis.
[0050] An air nozzle 15 is arranged on the above-mentioned outer ring spacer 4 , and the air nozzle 15 sprays compressed air to the inner ring spacer 5 opposite to each other. In addition, a valve body 51 is arranged, which adjusts the corr...
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