轴承
軸承
축승
BEARING
2015年
6期
32-35
,共4页
轮毂轴承%径向迷宫密封%齿型角%泄漏量
輪轂軸承%徑嚮迷宮密封%齒型角%洩漏量
륜곡축승%경향미궁밀봉%치형각%설루량
hub bearing%radial labyrinth seal%tooth angle%amount of leakage
以轮毂轴承径向直通式迷宫密封结构为研究对象，应用流体力学仿真分析软件研究了不同齿型角的迷宫流场和不同压比下泄漏量随齿型角的变化规律。结果表明：当其他结构尺寸一定时，相同压比下，泄漏量随齿型角的增大先减小后增大，即存在最佳齿型角使得泄漏量最小；当压比增大时，最佳齿型角仍存在，但其值减小。
以輪轂軸承徑嚮直通式迷宮密封結構為研究對象，應用流體力學倣真分析軟件研究瞭不同齒型角的迷宮流場和不同壓比下洩漏量隨齒型角的變化規律。結果錶明：噹其他結構呎吋一定時，相同壓比下，洩漏量隨齒型角的增大先減小後增大，即存在最佳齒型角使得洩漏量最小；噹壓比增大時，最佳齒型角仍存在，但其值減小。
이륜곡축승경향직통식미궁밀봉결구위연구대상，응용류체역학방진분석연건연구료불동치형각적미궁류장화불동압비하설루량수치형각적변화규률。결과표명：당기타결구척촌일정시，상동압비하，설루량수치형각적증대선감소후증대，즉존재최가치형각사득설루량최소；당압비증대시，최가치형각잉존재，단기치감소。
Taking the radial straight-through labyrinth seals of hub bearings as the research object,the variation rules for labyrinth flow field with different tooth angles and the amount of leakage under different pressure ratio with tooth an-gle are investigated by using fluid dynamics simulation analysis software.The results indicate that when other structure size remains constant,the amount of leakage presents a decrease at the start,and then an increase as the tooth angle increase under same pressure ratio,that means there is an optimal tooth angle makes the smallest amount of leak-age.When pressure ratio increases,the best tooth angle still exists,but its value will decrease.
