轴承
軸承
축승
BEARING
2015年
8期
48-50
,共3页
朱亮%李言%马小华%姜国平%赵涛
硃亮%李言%馬小華%薑國平%趙濤
주량%리언%마소화%강국평%조도
四点接触球轴承%重载%温升特性%试验
四點接觸毬軸承%重載%溫升特性%試驗
사점접촉구축승%중재%온승특성%시험
four point contact ball bearing%heavy load%temperature rise characteristic%test
重载工况轴承内部温升特性对机械传动系统的可靠性具有重要影响，运用轴承模拟试验机对重载工况用四点接触球轴承温升特性进行了测试。结果表明：轴承开始运转时温度逐渐上升，随后将保持相对稳定，当发生疲劳失效时轴承温度骤升，直至试验机报警停机；采用加大供油压力，调整冷却油出口流向等措施，可减小温升对轴承疲劳寿命的影响。
重載工況軸承內部溫升特性對機械傳動繫統的可靠性具有重要影響，運用軸承模擬試驗機對重載工況用四點接觸毬軸承溫升特性進行瞭測試。結果錶明：軸承開始運轉時溫度逐漸上升，隨後將保持相對穩定，噹髮生疲勞失效時軸承溫度驟升，直至試驗機報警停機；採用加大供油壓力，調整冷卻油齣口流嚮等措施，可減小溫升對軸承疲勞壽命的影響。
중재공황축승내부온승특성대궤계전동계통적가고성구유중요영향，운용축승모의시험궤대중재공황용사점접촉구축승온승특성진행료측시。결과표명：축승개시운전시온도축점상승，수후장보지상대은정，당발생피로실효시축승온도취승，직지시험궤보경정궤；채용가대공유압력，조정냉각유출구류향등조시，가감소온승대축승피로수명적영향。
The characteristics for internal temperature rise of bearings under heavy load operating conditions have im-portant influence on reliability for mechanical transmission system.The temperature rise characteristic for four point con-tact ball bearings under heavy load operating conditions is tested by using bearing simulation tester.The results show that the operating temperature of bearings is gradually raised,afterwards remaining relatively stable.When fatigue failure occurs,the temperature of bearings suddenly rise until tester sends warning signals and shut down.The effect of tempera-ture rise on fatigue life of bearings is decreased by increasing oil supply quantity and adjusting outlet flow direction of cooling oil.
