第10章--齿轮机构及其设计习题解答

全站基槽均为机械开挖，同时为保持一个平整的施工现场，达到文明施工的要求，根据现场情况将所挖出的土、石方只要不是立即回填的，便站外租地存放。Subsequently,theAnhuiArmymilitarySpecialBranch,inShanghai'sCentralIntelligenceOrganizationandtheCommunistpartyorganizationinWesternZhejiangProvince,sentpartybackbone,respectively,wenttoWuJiangyanopenedtheTomb,Tombofheroicpeople,undertheleadershipoftheCommunistParty,fearnosacrificeandpersevering,goaloftheanti-Japaneserevolutionarystruggle.(A)stationedinTaoyuanarea(Tombof)1,thenewarmyoftheCommunistPartyofChinaundergroundorganizationinSeptember1938,theCPCZhuangShaozhen(ZhuangZhen,Nanxunpeople)bytheDeputyDirectorofthepoliticalDepartmentofthearmyonDengZihui'sdispatch,operatingfromJingCounty,AnhuiProvince,theLakereachedtheTomb,itstasksare:lookingforreliableobject,introducethemtothenew,toexpandthenewteam.ZhuangShaozhenKMT-CPCcooperationasanopportunity,afterclassmatesYaoBi(Nanxunpeople,RenZhuxiforcestaffDirector),introducedintotheKuomintanggovernmentpoliticalteam,andasapoliticalleader.HeusedthisopportunitytoinviteprogressiveyouthHongHaiquanformapoliticalteam,atthispoint,theCountyGovernmenthasjustbeenestablished,localschool,unemployedyoutharemorequicklyabsorbedsheng,zhenze,Miaogang,Nanxun,huzhou,morethan20morethanrequired-Japaneseyouth.Inordertoraisethelevelofpoliticalplayersandtheabilitytowork,ZhuangShaozhenXuTemple,isfortheestablishmentofyouth...PoliticalactivitieswillsoonattracttheattentionoftheKuomintang.IsearlyZhuangShaozhenindicatingHongHaiquantoscoopthefirstelementaryschool,teacher'sidentityasacover,carryouttheparty'swork.However,CountyDirectorofeducationcomesintoaction.To第10章齿轮机构及其设计一、本章教学基本要求（1）了解齿轮机构的分类及应用；（2）掌握齿轮啮合基本定律与共轭齿廓；（3）掌握渐开线及渐开线齿廓；（4）掌握渐开线标准直齿圆柱齿轮及其啮合传动；（5）了解渐开线齿廓的切制及变位齿轮；（6）掌握斜齿圆柱齿轮传动、了解蜗杆传动、圆锥齿轮传动。二、重点知识1．齿轮机构的分类用于平行轴传动的齿轮机构（直齿、斜齿）用于相交轴传动的齿轮机构（圆锥齿轮）用于交错轴间传动的齿轮机构（蜗杆蜗轮）2．齿轮的齿廓曲线概念：节点、节圆齿廓啮合基本定律齿廓曲线的选择3．渐开线齿廓的啮合特点渐开线的形成及其特性（5条特性）渐开线方程及渐开线函数渐开线齿廓啮合的特点：渐开线齿廓能保证定传动比传动；渐开线齿廓之间的正压力方向不变；渐开线齿廓传动具有可分性。4．渐开线标准齿轮的基本参数和几何尺寸齿轮的5个基本参数：zchma、、、、**齿轮各部分的名称及几何尺寸计算（主要是4个圆）5．渐开线圆柱直齿轮的啮合传动一对渐开线齿轮正确啮合条件；齿轮传动的中心距和啮合角；一对齿轮的啮合过程及连续传动条件、重合度。6．渐开线齿轮的变位修正1）齿轮变位的原因；2）变位修正齿轮的切制；3）变位齿轮的几何尺寸计算；4）变位齿轮传动：变位齿轮传动的中心距；变位齿轮传动的类型及其特点；变位齿轮传动的设计步骤。7．斜齿圆柱齿轮传动全站基槽均为机械开挖，同时为保持一个平整的施工现场，达到文明施工的要求，根据现场情况将所挖出的土、石方只要不是立即回填的，便站外租地存放。Subsequently,theAnhuiArmymilitarySpecialBranch,inShanghai'sCentralIntelligenceOrganizationandtheCommunistpartyorganizationinWesternZhejiangProvince,sentpartybackbone,respectively,wenttoWuJiangyanopenedtheTomb,Tombofheroicpeople,undertheleadershipoftheCommunistParty,fearnosacrificeandpersevering,goaloftheanti-Japaneserevolutionarystruggle.(A)stationedinTaoyuanarea(Tombof)1,thenewarmyoftheCommunistPartyofChinaundergroundorganizationinSeptember1938,theCPCZhuangShaozhen(ZhuangZhen,Nanxunpeople)bytheDeputyDirectorofthepoliticalDepartmentofthearmyonDengZihui'sdispatch,operatingfromJingCounty,AnhuiProvince,theLakereachedtheTomb,itstasksare:lookingforreliableobject,introducethemtothenew,toexpandthenewteam.ZhuangShaozhenKMT-CPCcooperationasanopportunity,afterclassmatesYaoBi(Nanxunpeople,RenZhuxiforcestaffDirector),introducedintotheKuomintanggovernmentpoliticalteam,andasapoliticalleader.HeusedthisopportunitytoinviteprogressiveyouthHongHaiquanformapoliticalteam,atthispoint,theCountyGovernmenthasjustbeenestablished,localschool,unemployedyoutharemorequicklyabsorbedsheng,zhenze,Miaogang,Nanxun,huzhou,morethan20morethanrequired-Japaneseyouth.Inordertoraisethelevelofpoliticalplayersandtheabilitytowork,ZhuangShaozhenXuTemple,isfortheestablishmentofyouth...PoliticalactivitieswillsoonattracttheattentionoftheKuomintang.IsearlyZhuangShaozhenindicatingHongHaiquantoscoopthefirstelementaryschool,teacher'sidentityasacover,carryouttheparty'swork.However,CountyDirectorofeducationcomesintoaction.To1）6个基本参数（zchmnannn、、、、、**）及几何尺寸计算2）一对斜齿正确啮合的条件；3）斜齿轮传动的重合度；4）斜齿轮的当量齿轮及其当量齿数；5）斜齿轮传动的主要优缺点。8．蜗杆传动1）蜗杆传动的类型及特点；2）蜗杆蜗轮传动正确啮合条件；3）蜗杆传动的主要参数即几何尺寸。9．圆锥齿轮传动1）直齿圆锥齿轮的当量齿轮及当量齿数；2）一对圆锥齿轮的正确啮合条件；3）直齿圆锥齿轮传动的几何参数和尺寸计算。三、本章的考点包括以下几个方面1．渐开线直齿圆柱齿轮啮合原理；2．渐开线的性质；3．标准直齿圆柱齿轮几何尺寸的计算；4．齿轮的切削加工原理、根切现象及最小齿数；5．变位齿轮的设计；6．用图解法和解析法求重合度及重合度的意义；7．斜齿圆柱齿轮的特点及设计计算；8．当量齿轮、当量齿数及其用途；9．蜗杆蜗轮传动特点、设计计算及旋向的确定。四、常见题型精解10-1已知一对渐开线齿轮的基圆、齿顶圆及主动轮1的角速度1的方向，试作出啮合线、并指出理论啮合线段和实际啮合线段。分析根据渐开线的性质,啮合线必和两轮的基圆相切,由于逆时针方向旋转,故其应与轮1基圆的左下方和轮2的右上方,设切点分别为21NN、，21NN、与轮1和轮2齿顶圆的交点分别为21BB、，则21NN为理论啮合线段，21BB为实际啮合线段。解：如图所示评注本题主要考查对渐开线齿轮啮合原理和渐开线的性质及其相关知识的理解。10-2设计一对渐开线外啮合标准直齿圆柱齿轮机构。已知,5,37,1821mmmzz1,20*ah，试求：（1）两轮的几何尺寸及中心矩；（2）计算重合度，并以长度比例尺mmmml/2.0绘出一对啮合区和两对齿啮合区。分析本题没有难度，主要是训练对标准直齿圆柱齿轮几何尺寸的计算公式的应用和掌握。全站基槽均为机械开挖，同时为保持一个平整的施工现场，达到文明施工的要求，根据现场情况将所挖出的土、石方只要不是立即回填的，便站外租地存放。Subsequently,theAnhuiArmymilitarySpecialBranch,inShanghai'sCentralIntelligenceOrganizationandtheCommunistpartyorganizationinWesternZhejiangProvince,sentpartybackbone,respectively,wenttoWuJiangyanopenedtheTomb,Tombofheroicpeople,undertheleadershipoftheCommunistParty,fearnosacrificeandpersevering,goaloftheanti-Japaneserevolutionarystruggle.(A)stationedinTaoyuanarea(Tombof)1,thenewarmyoftheCommunistPartyofChinaundergroundorganizationinSeptember1938,theCPCZhuangShaozhen(ZhuangZ