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        [滾輪軸承 圖紙]外球圓柱滾子軸承的發(fā)熱和散熱

        發(fā)布時間:2020-05-15
        [外][球][圓][柱][滾][子][軸][承][的][工][作][溫][度][取][決][于][多][種][因][素][,][包][括][所][有][相][關(guān)][熱][源][的][發(fā)][熱][量][、][熱][源][之][間][的][熱][流][速][率][以][及][系][統(tǒng)][的]外球圓柱滾子軸承的發(fā)熱和散熱[散][熱][能][力][。][熱][源][包][括][軸][承][、][密][封][圈][、][齒][輪][、][離][合][器][和][供][油][等][等][。][散][熱][取][決][于][很][多][因][素][,][包外球圓柱滾子軸承的發(fā)熱和散熱][括][軸][和][軸][承][座][的][材][料][及][設(shè)][計][、][潤][滑][油][的][循][環(huán)][及][外][部][環(huán)][境][條][件][。][這][些][因][素][將][在][之][后][的][章][節(jié)][分][別][介][紹][。][發(fā)][熱][正][常][工][作][條][件][下][,][軸][承][型][號][的][大][部][分][轉(zhuǎn)][矩][和][熱][量][來][自][于][滾][子]/[軸][承][圈][接][觸][部][位][的][彈][性][流][體][動][態(tài)][損][失][。]


        [發(fā)][熱][是][軸][承][轉(zhuǎn)][矩][和][速][度][的][產(chǎn)][物][。][使][用][下][面][的][公][式][計][算][發(fā)][熱][量][。]Qgen=k4nM[圓][錐][軸][承][可][以][使][用][下][面][的][公][式][計][算][轉(zhuǎn)][矩][。]M=k1G1(n[)])0.62(Peq)0.3[其][中][:]k外球圓柱滾子軸承的發(fā)熱和散熱1=[軸][承][轉(zhuǎn)][矩][常][數(shù)]=2.56x10-6[(]M[的][單][位][是]N/m[)]k4=0.105[(]Qge外球圓柱滾子軸承的發(fā)熱和散熱n[的][單][位][是]W[,]M[的][單][位][是]N/m[)][非][圓][錐][軸][承][,][轉(zhuǎn)][矩][的][計][算][方][法][在][之][后][的][章][節(jié)][給][出][。]

        [散][熱][:][特][殊][應][用][中][如][何][確][定][軸][承][的][熱][流][量][是][一][個][復][雜][的][問][題][。][一][般][而][言][,][可][以][認][為][影][響][散][熱][速][率][的][因][素][包][括][:]1.[軸][承][到][軸][承][座][的][溫][度][梯][度][。][此][因][素][受][軸][承][座][尺][寸][以][及][外][部][冷][卻][裝][置][(][例][如][風][扇][、][水][冷][裝][置][等][)][的][影][響][。]2.[軸][承][到][軸][的][溫][度][梯][度][。][所][有][外球圓柱滾子軸承的發(fā)熱和散熱其][它][的][熱][源][,][如][齒][輪][和][其][它][軸][承][以][及][鄰][近][部][件][都][會][影][響][軸][的][溫][度][。]3.[循][環(huán)][油][潤][滑][系][統(tǒng)][帶][走][的][熱][量][。][某][種][程][度][上][,][因][素]1[和]2[可][以][根][據(jù)][應][用][而][不][同][。][散][熱][模][式][包][括][系][統(tǒng)][中][的][熱][傳][導][、][內(nèi)][外][表][面][的][對][流][以][及][相][鄰][結(jié)][構(gòu)][之][間][的][熱][輻][射][。][很][多][應][用][中][,][散][熱][可][分][為][兩][部][分][–][循][環(huán)][油][帶][走][的][熱][量][和][通][過][結(jié)][構(gòu)][散][發(fā)][的][熱][量][。][通][過][循][環(huán)][油][系][統(tǒng)][散][熱][潤][滑][油][帶][走][的][熱][量][較][易][控][制][。][在][飛][濺][式][潤][滑][系][統(tǒng)][中][,][可][以][使][用][冷][卻][旋][管][來][控][制][潤][滑][油][溫][度][。]


        [循][環(huán)][油][潤][滑][系][統(tǒng)][中][的][潤][滑][油][帶][走][的][熱][量][可][用][以][下][公][式][計][算][。]Qoil=k6Cp[f]f([o]o-[i]i)[其][中][:]k6=1.67x10-5[(]Qoil[的][單][位][是]W[)]=1.67x10-2[(]Qoil[的][單][位][是]BTU/[分][鐘][)][如][果][循][環(huán)][潤][滑][油][是][礦][物][油][,][帶][走][的][熱][量][可][用][以][下][公][式][計][算][:]Qoil=k5f([o]o-[i]i)[以][下][系][數(shù)][適][用][于][本][頁][中][所][列][的][發(fā)][熱][與][散][熱][公][式][。][其][中][:]k5=28[(]Qoil[單][位][是]W[,]f[單][位][是]L/[分][鐘][,][][單][位][是][℃][)][。]


        。外球圓柱滾子軸承的發(fā)熱和散熱滾輪軸承 圖紙

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