BEARING DEVICE AND OIL SUPPLY UNIT

• Main Authors: STOIMENOV BOYKO, TANIMOTO KIYOSHI
• Format: Patent
• Language: English; Japanese
• Published: 26.01.2017
• Subjects: BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a bearing device capable of efficiently supplying lubricant to an oil supply region requiring oil supply, and preventing excessive supply of the lubricant.SOLUTION: A bearing device 10 includes a bearing portion 20 having an outer ring 22, an inner ring 21, a plurality of balls 23 disposed therebetween, and a cage 24 for holding the plurality of balls 23, and an oil supply unit 40 disposed axially in adjacent to the bearing portion 20 and supplying a lubricant 3 to an oil supply region T requiring oil supply. The oil supply unit 40 has a tank for storing the lubricant 3, and a pump 43 for blowing out the lubricant 3 toward the oil supply region T. The pump 43 has a blowout port 50 opened toward the oil supply region T, and blows out the lubricant 3 from the blowout port 50 as oil droplets of 0.5-1000 pico-liter having a prescribed initial velocity.SELECTED DRAWING: Figure 1 【課題】給油が必要となる給油領域に効率よく潤滑油を供給し、潤滑油の過剰供給を防ぐことのできる軸受装置を提供する。【解決手段】軸受装置１０は、外輪２２、内輪２１、これらの間に介在している複数の玉２３、及び複数の玉２３を保持する保持器２４を有している軸受部２０と、この軸受部２０の軸方向の隣に設けられ給油が必要となる給油領域Ｔに潤滑油３を供給するための給油ユニット４０とを備えている。給油ユニット４０は、潤滑油３を溜めるタンクと、潤滑油３を給油領域Ｔに向かって飛ばすポンプ４３とを有している。ポンプ４３は、給油領域Ｔに向かって開口している噴出口５０を有し、噴出口５０から潤滑油３を所定の初速を有する０．５〜１０００ピコリットルの油滴として噴出する。【選択図】 図１