二级展开式圆柱齿轮减速器课程设计说明书范例.doc

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1、【精品文档】如有侵权，请联系网站删除，仅供学习与交流二级展开式圆柱齿轮减速器课程设计说明书范例.精品文档.机械课程设计说明书姓名：陈权班级：机电10-4班学号：18 指导老师：周瑞强成绩： 计 算 及 说 明结 果第一章 设计任务书1设计任务设计带式输送机的传动系统，采用两级圆柱齿轮减速器的齿轮传动。一、原始数据：1、运输牵引力2200N；2、运输带速度1.45m.s；3、滚筒直径280mm二、工作条件：单项连续运转，工作有轻微振动，空载启动，两班制工作，每班工作8小时，输送带工作速度允许误差为5%三、使用期限及检修周期：使用期限为8年，每年300个工作日，检修周期为3年。四、生产批量：小批量

2、生产。第二章 传动系统方案的总体设计一、带式输送机传动系统方案如下图所示1电动机的选择 1电动机容量选择根据已知条件由计算得知工作机所需有效功率设： 一对流滚动轴承效率。 =0.99为齿式联轴器的效率。 =0.99为8级齿轮传动的效率。 =0.97输送机滚筒效率。 =0.96估算传动系统的总效率：计 算 及 说 明结 果工作机所需的电动机攻率为： Y系列三相异步电动机技术数据中应满足：。,因此综合应选电动机额定功率2、电动机的转速选择根据已知条件由计算得知输送机滚筒的工作转速方案比较方案号型号额定功率同步转速满载转速总传动比Y132M1-64.0KW10009609.70Y112M-44.0K

3、W1500146014.55通过两种方案比较可以看出：方案选用电动机的总传动比为14.55，适合于二级减速传动，故选方案较为合理。Y112M-4型三相异步电动机额定功率为4.0kw，满载转速为970r/min,电动机中心高H=112mm，轴伸出部分用于装联轴器，轴段的直径和长度分别为：D=28mm、E=60mm2传动比的分配带式输送机传动系统的总传动比： 传动系统各传动比为：计 算 及 说 明结 果3 传动系统的运动和动力学参数设计传动系统各轴的转速、功率和转矩的计算如下：0轴电动机轴 1轴减速器高速轴 2轴减速器中间轴 3轴减速器低速轴4轴工作机 计 算 及 说 明结 果轴号电动机减速器工作

4、机0轴1轴2轴3轴4轴转速1440144031998.7698.76功率3.73.663.513.73.30转矩24.5424.29102.04165.0310.2联接、传动件联轴器齿轮齿轮联轴器传动比14.513.231传动效率0.990.96030.96030.9801(单位：； PkW; TNm)第三章 高速级齿轮设计一、选定齿轮类型、精度等级、材料及齿数。1)选用斜齿圆柱齿轮传动2)运输机为一般工作机，速度不高，故用7级精度（GB10095-88）3)材料选择。 由课本P58表4-2及例题4-1得可选齿轮材料为40Cr（调质），小齿轮硬度为280HBS，二者材料硬差为40HBS。4)选

5、取小齿轮齿数Z1=24，大齿轮齿数：Z2=iZ1=4.5524=109.2取Z2=110。5)选取螺旋角。初螺旋角为=1401按齿面强度设计即：1） 确定公式内的各计算数值（1） 试选Kt=1.6（2） 由课本得ZH=2.433（3） 由课本得：（4） 计算小齿轮传递的转矩P1/n1=95.51053.66/1440=2.4273104Nm各参数如左图所示T1=2.4273103Nm计 算 及 说 明结 果(5) 由课本得：(6)由课本得：材料弹性影响系数(7)由图10-21d按齿面硬度查得小齿轮的接触疲劳强度极限；大齿轮的疲劳强度极限。(8)条件：每年工作时间按300天计算，使用期限8年，每

6、天工作两班，每班8小时。计算应力循环次数：(9)由文献【一】图10-19查得接触疲劳寿命系数(10)疲劳许用应力取失效概率为1%，安全系数为S=1。2)计算(1)小齿轮分度圆直径d1t(2)计算圆周的速度：(3)计算齿宽b及模数mnt计 算 及 说 明结 果H=2.25mnt=3.235mm b/h=35.56/4.55=10.99(4)计算重合度(5)计算载荷系数K根据v=2.7m/s、7级精度，由文献【一】图10-8查得动载系数Kv=1.10;由查得：KH=1.41;KF=1.3;KHa=KFa=1.4(6)按实际的载荷系数校正所算得的(7)计算模数Mn 2 按齿根弯曲强度设计： 1）确定

7、计算参数(1)计算载荷系数(2)根据纵向重合度2.27,从图10-28查得(3)计算当量齿数： (4)查取齿形系数，由表10-5查得：(5)查取应力校正系数，由表10-6得：(6)由图10-20C得小齿轮的弯曲疲劳强度极限FE1=500MPa计 算 及 说 明结 果大齿轮的弯曲疲劳强度极限(7)由图10-18查得弯曲疲劳强寿命系数KFN1=0.85,KFN2=0.88(8)计算弯曲疲劳许用应力取弯曲疲劳安全系数1.4(9)计算大、小齿轮下面的值，并加以比较。大齿轮的数值大)设计计算对比计算结果，由齿面接触疲劳强度计算的法面模数Mn大于由齿根弯曲疲劳强度计算的法面模数，取Mn=1.5mm,已可满

8、足弯曲强度。但为了同时满足接触疲劳强度，需按接触强度极限算得分度圆直径d1=36.60mm来计算应有的齿数。于是由取则，取113)几何尺寸计算)计算中心距将中心距圆整为107mm2)按圆整后中心距修正螺旋角mm计 算 及 说 明结 果)计算大、小齿轮的分度圆直径 )计算齿轮宽度圆整后取5)结构设计第四章 低速级齿轮设计1、选定齿轮类型、精度等级、材料及齿数。1)选用斜齿圆柱齿轮传动2)运输机为一般工作机器，速度高，故用7级精度（GB10095-88）3)材料选择。 由文献【一】表10-1得可选小齿轮材料为40Cr（调质），硬度为280HBS，二者材料硬差为40HBS。4)选取小齿轮齿数Z1=1

9、7，大齿轮齿数：Z2=iZ1=3.2317=54.91取Z2=55。5)选取螺旋角。初螺旋角为=1401按齿面强度设计即：2） 确定公式内的各计算数值（5） 试选Kt=1.6（6） 由文献【一】图10-30得ZH=2.433（7） 由文献【一】图10-30得：计 算 及 说 明结 果(4)计算小齿轮传递的转矩P2/n2=95.51053.51/319=10.508104Nm(5) 文献【一】表10-7得：(6) 文献【一】表10-6得：材料弹性影响系数(7)由图10-21d按齿面硬度查得小齿轮的接触疲劳强度极限；大齿轮的接触疲劳强度极限。(8)设每年工作时间按300天计算(9)由文献【一】图1

10、0-19查得接触疲劳寿命系数(10)疲劳许用应力取失效概率为1%，安全系数为S=1。2)计算(1)小齿轮分度圆直径d1t(2)计算圆周的速度：(3)计算齿宽b及模数mnt 计 算 及 说 明结 果H=2.25mnt=7.415mm b/h=57.74/7.415=7.8(4)计算重合度(5)计算载荷系数K根据v=1m/s、7级精度，由文献【一】图10-8查得动载系数Kv=0.7;由查得：KH=1.422;KF=1.33;KHa=KFa=1.4(6)按实际的载荷系数校正所算得的(7)计算模数Mn 2按齿根弯曲强度设计： 1）确定计算参数(1)计算载荷系数(2)根据纵向重合度1.35,从图10-2

11、8查得螺旋角影响系数(3)计算当量齿数： H=2.25mm计 算 及 说 明结 果(4)查取齿形系数，由表10-5查得：(5)查取应力校正系数，由表10-6得：(6)由图10-20C得小齿轮的弯曲疲劳强度极限FE1=500MPa大齿轮的弯曲疲劳强度极限(7)由图10-18查得弯曲疲劳强寿命系数KFN1=0.85,KFN2=0.88(8)计算弯曲疲劳许用应力取弯曲疲劳安全系数1.4(9)计算大、小齿轮下面的值，并加以比较。大齿轮的数值大)设计计算对比计算结果，由齿面接触疲劳强度计算的法面模数Mn大于由齿根弯曲疲劳强度计算的法面模数，取Mn=3mm,已可满足弯曲强度。但为了同时满足接触疲劳强度，需

12、按接触强度极限算得分度圆直径d1=57.74mm来计算应有的齿数。于是由取则，取62计 算 及 说 明结 果.几何尺寸计算)计算中心距将中心距圆整为125mm2)按圆整后中心距修正螺旋角)计算大、小齿轮的分度圆直径)计算齿轮宽度圆整后取：4 斜齿轮各参数的确定名称符号高速1齿高速2齿低速1齿低速2齿螺旋角14.214.213.6913.69齿数Z251131962旋向左右左右法面模数1.51.533端面模数2.062.063.093.09法面压力角200200200200端面压力角20.5020.5020.6020.60法面齿距4.714.719.429.42端面齿距4.864.869.729

13、.72法面齿顶高系数1111法面顶隙系数0.250.250.250.25法面基圆齿距4.434.438.858.85齿顶高1.51.533齿根高1.8751.8753.753.75法面齿厚2.3552.3554.714.71齿顶圆直径53239.5665.67214.30齿根圆直径46.25209.0552.17186.97分度圆直径5022659.67194.47基圆直径46.8211.5458.67191.45计 算 及 说 明结 果 第五章 各轴设计方案1轴的设计轴的布置如下图： 计 算 及 说 明结 果1 中间轴的设计及轴承的选取1、初选轴的最小直径与计算各段轴长。选取轴的材料为45钢

14、，调质处理，由文献【二】表15-3取A0=112，于是得。输出轴的最小直径显然是是安装滚动轴承处的直径，由文献【二】附表E-2，根据轴最小直径38.3mm，可选标准轴球轴承的安装直径为40mm，即轴的直径为40mm，那么宽B=15mm.由文献【二】表5-2得d2=49.75mm考虑相邻齿轮轴向不发生干涉，计入尺寸S=10mm；考虑齿轮与箱体内壁沿轴向不发生干涉，计入尺寸K=10mm；为保证党总支轴承放入箱体轴承座孔内，订入尺寸C=5mm。2、受力分析（如下页图示）2 中间轴的受力和弯矩图如下计 算 及 说 明结 果3、求水平面内的支承力，作水平面的弯矩图 由轴的水平面的受力图可得：弯矩图如上图

15、4、求垂直面内的支承力，作垂直面的弯矩图轴在垂直面内的弯矩图如上图所示。5、求支承反力、作轴的合成弯矩图和转矩图。计 算 及 说 明结 果(轴向力Fa1、Fa2用于支承轴的滚动轴承拟选用深沟球轴承，并采用丙端固定式组合方式，故轴向力作用在轴承A、B上)弯矩图如上图所示6、轴的初步计算经查资料轴的材料为45号钢调质处理此处开有一个键槽时，直径增大4%，所以 7、轴的结构设计按经验公式，减速器高速级从动轴的危险截面直径：由文献【二】表5-1，取减速器中间轴的危险面直径d =65mm.轴的最小直径取d2就不当了，应定为：60mm(为轴承处直径大小)8、键的选取：由文献【二】附录G可得：bh=1811

16、,轴:-0.0430毂：0.0215; 深度：轴：7（00.2）,毂：4.4(00.2); 半径：r=0.250.40RB=2829.57合弯矩大小左侧所示D=65mm计 算 及 说 明结 果3 高速轴的设计及联轴器的选取 1、初选轴的最小直径与计算各段轴长。选取轴的材料为45钢，调质处理。由文献【二】表15-3取A0=112，于是得。输出轴的最小直径显然是是安装联轴器处的直径。2、初步选定联轴器和计算转矩：Tca=KAT1由文献【二】表14-1得KA=1.3; Tca=1.387330=113529Nmm查标准Gb/T5014-1985或手册，选用TL5型弹性柱销联轴器，其公称转矩为1250

17、00Nmm；半联轴器的孔径d1=25;半联轴器长度L=62mm；毂孔长度L1=44mm。由文献【二】表5-2得：d1=25 时，d2= d1+3.1c=25+3.11.6=29.9mm3、选角接触球轴承由文献【二】附表E-3可选7006C:d3=35mm, D=62mm, B=14mm4、d4=d2+3.11.6=39.96; 取d4=40mm5、键的选取1）联轴器处键的选取2)齿轮处键的选取6、轴的跨度跟据中间轴的尺寸来定。（标注如附录二）d1=25d2= 30mmd3=35mmd4=40mmd5=46mm计 算 及 说 明结 果4 低速轴的设计及联轴器的选取 1、初选轴的最小直径与计算各段

18、轴长。选取轴的材料为45钢，调质处理。由文献【二】表15-3取A0=112，于是得。输出轴的最小直径显然是是安装联轴器处的直径。2、联轴器的计算转矩：Tca=KAT3由文献【二】表14-1得KA=1.3; Tca=1.3128900=1675700Nmm查标准Gb/T5014-1985或手册，选用TL5型弹性柱销联轴器，其公称转矩为2000000Nmm；半联轴器的孔径d1=60;半联轴器长度L=142mm；毂孔长度L1=107mm。由文献【二】表5-2得：d1=60mm时，d2= d1+3.5c=60+3.52=67mm3、选角接触球轴承由文献【二】附表E-3可选7014C:d3=70mm,

19、D=110mm, B=20mm4、d4=74mm5、键的选取1）齿轮处键的选取2)联轴器处键的选取6、轴的跨度跟据中间轴的尺寸来定。（标注如附录二）d1=60mmd2=67mmd3=70mmd4=84mm5 各轴图示与标注高速级轴承中间轴承低速级轴承【注】：上图为二级传速轴的示图和相应尺寸标注，单位：mm（英文版 ） easily blame, to prevent the broken window effect. Supervise the leading cadres to play an exemplary role, take the lead in the strict imple

20、mentation of the and , lead to safeguard the solemnity and authority of the party discipline, ensure that the party discipline and the laws and regulations for implementation in place. Throughout the discipline in the daily supervision and management, strengthen supervision and inspection, from the

21、thorough investigation of violations of discipline behavior. Strengthen to key areas, key departments and key projects as well as the masses reflect the concentration of the units and departments for supervision. - strengthening supervision, discipline inspection and supervision of cadres to set an

22、example for compliance with the and is a man must be hexyl, blacksmith needs its own hardware. Discipline inspection organs as the executor of the party discipline, and supervisor of the defenders, for its supervision must be more strictly, discipline inspection and supervision of cadres to firmly e

23、stablish the awareness of Party Constitution, sense of discipline and rules consciousness, politics loyalty, sense obey. Action speak Ji Ordinance to set an example of the regulations of the rule of law, strengthen supervision and accept the supervision of the firmness and consciousness, do comply w

24、ith and . To firmly establish the discipline must first be disciplined, the supervisor will be subject to the supervision of concept, and consciously safeguard and implement party compasses party, take the lead in practicing three strict real strict, so loyal, clean, play. To be good at learning, th

25、e Constitution and the as morality, politics and brought to fruition; to implement , do not want to, dare not, not with disciplinary ruler to supervision; to discipline a ruler, often the control inspection, and consciously in the ideological red line to draw the row Ming Good accumulation is indeed

26、 the bottom line, so that the heart has fear, said to have quit, the line has ended. Attached: indifferent to heart, calmly to the table in our life, there are many unpredictable things will happen, some good, some bad things, we cannot control is powerless to stop, but with time, you will find in l

27、ife sometimes turns out to be not good, some bad things finally turned out to be a good thing, but then we muddy however did not know, this is the life teach us things. 1, life can be complex, can also be simple. Want simple life of precipitation, to have enough time to reflect, to make Become more

28、perfect. Life is the most important thing is not to win, but the struggle; not to have conquered, but to have fought well. 2, the plain is the background of life. Live a plain life, give up on themselves is not a coward, but the wise answers; not disillusioned after the heart, such as ashes, but exp

29、erience the storm after the enlightenment; not unrewarding perfunctorily, but calm attitude of life of unrestrained self-confidence. Plain living, there is no noise noisy, no earthly troubles, more did not fill in the discontent of desire, some just a calm, a calm. 3, memory of heart will not good t

30、hings to erase the, life is a When no movie, pain is a beginning, the struggle is a kind of process, death is a kind of ending. Give up this giving up is the helpless, do not give up the abandoned, do not give up this giving up is ignorance, do not give up should not give up is persistent. 4, a thin

31、g figured is heaven, think impassability is hell. Since the living, to live better. Sometimes we because of too narrow-minded, too care around the chores and penny wise and pound foolish, not worth the candle. Some things to attract trouble and worry, completely depends on how we look at and deal wi

32、th it. Dont always take everything back to things, and dont get into a blind alley, dont want to face, dont be narrow-minded. Poke to care, is a kind of open-minded, a free and easy. 5, I am not afraid of others behind me a knife, I afraid to look back and see stab me, is my intention to treat peopl

33、e; I am not afraid of the truth to tell the best friend, Im afraid he turned to it as a joke to tell dont 6, when we are in a positive frame of mind, you will find many good things; and when we are in a negative state of mind, you will find many depressed things; life happy and worry, all is you of

34、life attitude, optimistic, good luck; loss of sink, Eritrea company. When you are in adversity, may wish to change a point of view to think everything over to the good Think, because good mentality decided the fate of the! 7, people are tired, rest; heart tired, calm. Grow up, mature, this society r

35、ead. Tired and sad, squat down, to their a hug. Because the world no one can sympathize with you, have mercy on you. You cry, tears is your own; you pain, no one can understand. Then you only tears to smile. 8, each people have youth,Each youth are a story, the life of the world never gets easier, I

36、 want what, wish the world all know, as has been the same; now want anything, for fear that others know, or like to lose the same. 9, the heart move, everything in the world is followed by birth, Rangrang, important thing is often the most difficult to open ones mouth, because words will reduce its

37、importance; to let strangers people care about your life in the good things, the original is not easy 10, do not blame, do not laugh at who, also dont envy who. Like a person is a kind of feeling, not like a person is true. The truth is easy to explain, I feel Is unspeakable. The best travel life is

38、 that you in a strange place found a long lost touched. 11, happy life not in the bustling in, and in the peace of mind; no matter how many grievances, how uncomfortable, and ultimately to heal themselves or their own, others may got you to comfort, but never know your heart is how wanjianchuanxin.

39、12, maam, like a movie, learn to appreciate, learn to be grateful, learn tolerance, and goodness, helping others. Instead of accusing the society, as into one; and an exception is better to give than to what 13, dont envy him A sum of, dont lose your life and the life, respectively is: the former is

40、 a we experienced cannot escape in a day finally will last minute, while the latter is our persistent, we want to cherish the memory of those people and things. 14, learn to smile, learn to strong, the world you know so many people, so many people and you are, you cannot change also cant let everyon

41、e like you, so also do not want to do. Life is too short to go crazy to love to go to waste, to chase the dream to regret. 15, when temper, a blessing to go. A wounding elegant people, the key is to control their own emotions. With the mouth is the most stupid behavior. A control negative emotions than a can take a city more powerful water flow slow, language is expensive. People spent two years of time to learn to speak, but to spend a few years time to shut up. That