ANSI B92.1-1970(R1993) SAE美国渐开线花键-中文翻译完整版0429.doc

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1、SPLINESANDSERRATIONS（翻译：朱晓峰,，）Asplinedshaftisonehavingaseriesofparallelkeysformedintegrallywiththeshaftandmatingwithcorrespondinggroovescutinahuborfitting;thisarrangementisincontrasttoashafthavingaseriesofkeysorfeathersfittedintoslotscutintotheshaft.Thelatterconstructionweakenstheshafttoaconsider

2、abledegreebecauseoftheslotscutintoitandconsequently,reducesitstorque-transmittingcapacity.花键轴是一种具有“一系列相互平行的齿、并且齿与轴整体成型”的轴，它与在轮毂上或者装配体上开的键槽相配合。这种装置与“在轴上开槽并且与一组销子或者楔键相配合”的结构相反。后者的结构由于在轴上开槽大大降低了轴（的强度），降低了传递扭矩的能力。Splinedshaftsaremostgenerallyusedinthreetypesofapplications:1)forcouplingshaftswhenrelat

3、ivelyheavytorquesaretobetransmittedwithoutslippage;2)fortransmittingpowertoslidably-mountedorpermanently-fixedgears,pulleys,andotherrotatingmembers;and3)forattachingpartsthatmayrequireremovalforindexingorchangeinangularposition.花键轴主要用在以下三种情况：1）需要在无滑动的联轴器上传递大的扭矩；2）用于向“可滑动的装配组件”或者“固定装配的齿轮组或滑轮副”传递动力

4、，3）用于“要求指定滑移量或转角位置”的配件上。译注A1：“slidably-mounted”例如球笼式等速万向节，万向节同时能转动一定角度；“ermanently-fixedgears”例如齿轮变速箱。（凡是带“译注”的，表示译者的理解，下同）Splineshavingstraight-sidedteethhavebeenusedinmanyapplications(seeSAEParallelSideSplinesforSoftBroachedHolesinFittings);however,theuseofsplineswithteethofinvoluteprofilehasst

5、eadilyincreasedsince1)involutesplinecouplingshavegreatertorque-transmittingcapacitythananyothertype;2)theycanbeproducedbythesametechniquesandequipmentasisusedtocutgears;and3)theyhaveaself-centeringactionunderloadevenwhenthereisbacklashbetweenmatingmembers.具有“直边式齿形”的花键已经适用于多种场合（请查看“用于软拉削加工成型的直边式花键

6、”）；然而，“齿侧具有渐开线形状的花键”的使用正在逐步的增长，原因如下：1）渐开线花键传递扭矩的性能超过其他形式；2）可用加工齿轮的技术或设备来加工；3）在齿和外齿配合情况下产生的反作用力具有自定心功能。译注A2：“ParallelSideSplines”指的是矩形花键，文中翻译成“直边式花键”，见《GB/T1144矩形花键尺寸、公差和检验》；译注A3：“SAEParallelSideSplinesforSoftBroachedHolesinFittings”指SAEJ499A，一种类似GB/T1144的标准。InvoluteSplinesAmericanNationalStandard

7、InvoluteSplines*.—Thesesplinesormultiplekeysaresimilarinformtointernalandexternalinvolutegears.Thegeneralpracticeistoformtheexternalsplineseitherbyhobbing,rolling,oronagearshaper,andinternalsplineseitherbybroachingoron