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1、EnglishforMechanicalEngineering机械工程专业英语常州工学院机电工程学院徐红丽Slottedconepointedsetscrew.Hexnut.Slottednut.Brightwasher.Springwasher.Tabwasher锥端紧定螺钉六角螺母六角槽形螺母平垫圈弹簧垫圈外舌止动垫圈Hexagonheadbolt.Stud.Slottedcheeseheadscrew.Slottedpanheadscrew.Slottedcountersunkscrew.Hexagonsocketcap六角
2、头螺钉双头螺柱头圆柱头螺钉盘头螺钉沉头螺钉圆柱头内六角螺钉Typesofscrewfasteners螺纹紧固件的种类Partswiththreadsusedforjoiningandfasteningarecalledscrewfasteners.Themostwidelyusedcomponentsasscrewfastenersarebolts,doublescrewbolts---stud,screws,nutsandwashers。用螺纹联接并起紧固作用的零件称为螺纹紧固件。常用的螺纹紧固件有螺栓、双头螺柱、螺钉、螺母、垫
3、圈等。Lesson19Screws,fastenersandjoints机械工程专业英语机械工程专业英语预备知识一、BackgroundinformationLesson19Screws,fastenersandjointsBoltedjointsareoneofthemostcommonelementsinconstructionandmachinedesign.Theyconsistofcapscrewsorstudsthatcaptureandjoinotherparts,andaresecuredwiththemating
4、ofscrewthreads.Therearetwomaintypesofboltedjointdesigns.Inonemethodtheboltistightenedtoacalculatedclampload,usuallybyapplyingameasuredtorqueload.Thejointwillbedesignedsuchthattheclamploadisneverovercomebytheforcesactingonthejoint(andthereforethejoinedpartsseenorelativ
5、emotion).Theothertypeofboltedjointdoesnothaveadesignedclamploadbutreliesontheshearstrengthoftheboltshaft.Thismayincludeclevislinkages,jointsthatcanmove,andjointsthatrelyonlockingmechanism(likelockwashers,threadadhesives,andlocknuts).机械工程专业英语预备知识一、Backgroundinformation
6、Lesson19Screws,fastenersandjointsBoltedjointScrewjointStudjointBolt螺栓Theboltassemblyisusedwhenjointpartsarenottoothicktodrillthroughholes.螺栓用于联接二通孔薄件Stud双头螺柱Studareusedinsituationswhereapartwithathroughholeandapartwithblindtappedhole.双头螺柱用于联接一通孔薄件和一盲孔厚件。Screw螺钉Screwsa
7、remostlyusedforthecaseswithsmallbearingforces.suchasinspectioncoverswhichhavetoberemovedfrequently.螺钉多用于用于受力不大需要经常拆卸的情况Nut螺母Nutareusedtomatchtheotherscrewfasteners.螺母与其他螺纹件配合使用Washer垫圈弹簧垫圈平垫圈Washerareusedtomatchtheotherscrewfasteners.垫圈与其他螺纹件配合使用机械工程专业英语预备知识一、Backgrou
8、ndinformationLesson19Screws,fastenersandjointsTheoryTheclampload,alsocalledpreload,ofacapscrewiscreatedwhenatorqueisapplied,
