[實用新型]用極限設計方法研制的雙列、四列圓錐滾子軸承無效
【權利要求書】：
1、用極限設計方法研制的四列圓錐滾子軸承，具有兩個外圈(1)、一個第二外圈(7)、兩個內圈(5)、在兩內圈間設內隔圈(6)，在外圈和第二外圈間設兩個外隔圈(4)，在內圈和外圈間設多個滾子(2)、滾子由保持架(3)支撐，23種型號軸承的軸承內徑d、軸承外徑D、軸承寬T分別為表1中序號1～23的數值，其特征是23種型號軸承的滾子直徑Dw、滾子長度L，滾子在周向每列設置數量Z以及滾子半錐角ψ的取值范圍分別為表1中序號1～23的一組，即取值為序號1或2或3……或23的數值范圍。
???????????????????????????????????????????????????????????????????????????????????????????????表1??序??號?????????軸承外形尺寸(毫米)????四列圓錐滾子軸承結構要素取值范圍(毫米)
????軸承內徑????d????軸承外徑????D????軸承寬????T????滾子直徑????Dw????滾子長度????L????滾子數量????Z??滾子半錐角??ψ
??1????203.2????317.5????266.7????+0.5????28.886????-2????+0.5????48.8????-2????-1????27??1°49′±10′
??2????203.352????298.450????174.628????+0.5????30.028????-2????+0.5????30????-2????-1????24??1°22′±10′
??3????244.475????381????304.8????+0.5????37.498????-2????+0.5????56.4?????-2????-1????25??1°42′±10′
??4????269.875????381????282.58????+0.5????31.796????-2????+0.5????54.3????-2????-1????30??1°4′±10′
??5????304.902????412.648????266.7????+0.5????30.928????-2????+0.5????50.7????-2????-1????34??54′±10′
??6????317.5????447.675????327.025?????+0.5????37.657????-2????+0.5????63.4?????-2????-1????31??1°4′30″±10′
??7????343.052????457.098????254????+0.5????30.635????-2????+0.5????46.1?????-2????-1????37??1°11′±10′
??8????360????480????375????+0.5????30.13????-2????+0.5????74.9????-2????-1????41??52′±10′
??9????375????545????330????+0.5????53.466????-2????+0.5????59.1????-2????-1????26??1°9′
??10????380????560????325????+0.5????59.388????-2????+0.5????57.2????-2????-1????24??1°22′±10′
??8????360????480????375????+0.5????30.13????-2????+0.5????74.9????-2????-1????41??52′±10′
??9????375????545????330????+0.5????53.466????-2????+0.5????59.1????-2????-1????26??1°9′
??10????380????560????325????+0.5????59.388????-2????+0.5????57.2????-2????-1????24??1°22′±10′
??11????409.575????546.1????334.926????+0.5????38.384????-2????+0.5????62?????-2????-1????37??1°7′±10′
??12????440????580????360????+0.5????42.075????-2????+0.5????71.6????-2????-1????36??55′±5′
??13????450????595????368????+0.5????40.531????-2????+0.5????69.1????-2????-1????38??52′
??14????480????700????420????+0.5????63.23????-2????+0.5????71????-2????-1????29??1°±10′
??15????482.6????615.95????425????+0.5????37.669????-2????+0.5????73.2????-2????-1????42??37′±5′
??16????488.95????622.3????365.125????+0.5????34.24????-2????+0.5????68.5????-2????-1????44??37″30′±5′
??17????490????625????385????+0.5????34.244????-2????+0.5????72.5????-2????-1????48??52′±5′
??18????560????750????368????+0.5????58.291????-2????+0.5????65.4?????-2????-1????34??1°±10′
??19??600????980????650????+1????117.649????-2????+1????116.4????-2????-1????21??1°31′±10′
??20????609.6????787.4????361.95????+0.5????55.883????-2????+0.5????67.8????-2????-1????37??1°±10′
??21????650????1030????560????+1????100.465????-2????+1????99.7????-2????-1????26??1°24′±10′
???????????????????????????????????????????????????????????????????????????????????????????????????????????表2序號????軸承外形尺寸(毫米)????四列圓錐滾子軸承結構要素取值范圍(毫米)
軸承內徑????d軸承外徑????D??軸承寬????T滾子直徑????Dw滾子長度????L滾子數量????Z滾子半錐角????ψ
????1????203.2????317.5???266.7??28.886????48.8????27????1°49′
????2????203.352????298.450??174.628??30.028????30????24????1°22′
????3????244.475????381???304.8??37.498????56.4????25????1°42′
????4????269.875????381???282.58??31.796????54.3????30????1°4′
????5????304.902???412.648???266.7??30.928????50.7????34????54′
????6????317.5???447.675???327.025??37.657????63.4????31??1°4′30″
????7???343.052???457.098????254??30.635????46.1????37????1°11′
????8????360????480????375???30.13????74.9????41????52′
????9????375????545????330??53.466????59.1????26????1°9′
??10????380????560????325??59.388????57.2????24????1°22′
??11??409.575???546.1???334.926??38.384????62????37????1°7′
??12????440????580????360??42.075????71.6????36????55′
??13????450????595????368??40.531????69.1????38????52′
??14????480????700????420????63.23????71????29????1°
??15??482.6??615.95????425??37.669????73.2????42????37′
??16??488.95???622.3???365.125??34.24????68.5????44????37′30″
??17????490????625????385??34.244????72.5????48????52′
??18????560????750????368??58.291????65.4????34????1°
??19????600????980????650??117.649????116.4????2I????1°31′
??20??609.6??787.4???361.95??55.883????67.8????37????1°
??21????650????1030????560??100.465????99.7????26????1°24′
??22??685.8??876.3???355.6??61.434????58.9????38????1°8′
??23????780????1220????840??132.072????166.7????24????1°28′
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