COOLING STRUCTURE OF BEARING DEVICE
PROBLEM TO BE SOLVED: To provide a cooling structure of a bearing device which can efficiently cool a bearing, and can effectively suppress an impact sound between an air curtain and a cooling fluid caused by a swirl flow generated in the vicinity of rolling bodies.SOLUTION: In this bearing device,...
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Format | Patent |
Language | English Japanese |
Published |
23.05.2016
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Abstract | PROBLEM TO BE SOLVED: To provide a cooling structure of a bearing device which can efficiently cool a bearing, and can effectively suppress an impact sound between an air curtain and a cooling fluid caused by a swirl flow generated in the vicinity of rolling bodies.SOLUTION: In this bearing device, an outer ring spacer 4 and an inner ring spacer 5 are arranged while adjoining an outer ring 2 and an inner ring 3 of a rolling bearing 1, respectively. The outer ring 2 and the outer ring spacer 4 are arranged at a housing 8, and the inner ring 3 and the inner ring spacer 5 are fit to a rotating shaft 9. A nozzle 12 for injecting a cooling fluid R toward an external peripheral face 3b of the inner ring 3 is arranged at the outer ring spacer 4 while making a discharge port 12a side of the nozzle 12 directed frontward of the inner ring 3 in a rotation direction. An inclination angle α with respect to an axial direction of the nozzle 12 is set within a range of 50° to 90°.SELECTED DRAWING: Figure 1
【課題】 軸受を効率良く冷却することができ、転動体付近に発生する旋回流からなるエアカーテンと冷却用流体との衝突音を効果的に抑制することができる軸受装置の冷却構造を提供する。【解決手段】 この軸受装置は、転がり軸受1の外輪2および内輪3にそれぞれ隣接して外輪間座4および内輪間座4が配置されている。外輪2および外輪間座4はハウジング8に設置され、内輪3および内輪間座5は回転軸9に嵌合する。外輪間座4に、内輪3の外周面3bに向けて冷却用流体Rを噴射するノズル12を、このノズル12の吐出口12a側を内輪3の回転方向の前方へ向けて設ける。このノズル12の軸方向に対する傾斜角度αを50°ないし90°の範囲内とする。【選択図】 図1 |
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AbstractList | PROBLEM TO BE SOLVED: To provide a cooling structure of a bearing device which can efficiently cool a bearing, and can effectively suppress an impact sound between an air curtain and a cooling fluid caused by a swirl flow generated in the vicinity of rolling bodies.SOLUTION: In this bearing device, an outer ring spacer 4 and an inner ring spacer 5 are arranged while adjoining an outer ring 2 and an inner ring 3 of a rolling bearing 1, respectively. The outer ring 2 and the outer ring spacer 4 are arranged at a housing 8, and the inner ring 3 and the inner ring spacer 5 are fit to a rotating shaft 9. A nozzle 12 for injecting a cooling fluid R toward an external peripheral face 3b of the inner ring 3 is arranged at the outer ring spacer 4 while making a discharge port 12a side of the nozzle 12 directed frontward of the inner ring 3 in a rotation direction. An inclination angle α with respect to an axial direction of the nozzle 12 is set within a range of 50° to 90°.SELECTED DRAWING: Figure 1
【課題】 軸受を効率良く冷却することができ、転動体付近に発生する旋回流からなるエアカーテンと冷却用流体との衝突音を効果的に抑制することができる軸受装置の冷却構造を提供する。【解決手段】 この軸受装置は、転がり軸受1の外輪2および内輪3にそれぞれ隣接して外輪間座4および内輪間座4が配置されている。外輪2および外輪間座4はハウジング8に設置され、内輪3および内輪間座5は回転軸9に嵌合する。外輪間座4に、内輪3の外周面3bに向けて冷却用流体Rを噴射するノズル12を、このノズル12の吐出口12a側を内輪3の回転方向の前方へ向けて設ける。このノズル12の軸方向に対する傾斜角度αを50°ないし90°の範囲内とする。【選択図】 図1 |
Author | MORI MASATSUGU FUKADA KIKUO YAMAMOTO YOHEI ONDA YUJI YOSHINO MASATO |
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Snippet | PROBLEM TO BE SOLVED: To provide a cooling structure of a bearing device which can efficiently cool a bearing, and can effectively suppress an impact sound... |
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SubjectTerms | BEARINGS BLASTING BORING COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING LUBRICATING MACHINE TOOLS MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL TRANSPORTING TURNING WEAPONS |
Title | COOLING STRUCTURE OF BEARING DEVICE |
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