(完整版)盘磨机传动装置设计毕业设计 - 下载本文

盘磨机传动装置设计 【摘 要】齿轮传动是现代机械中应用最广的一种传动形式。 它的主要优点是: 1、瞬时传动比恒定、工作平稳、传动准确可靠,可传递空间任意两轴之间的运动和动力; 2、适用的功率和速度范围广,传动效率高,工作可靠、使用寿命长; 3、外轮廓尺寸小、结构紧凑。由齿轮、轴、轴承及箱体组成的齿轮减速器,用于原动机和工作机或执行机构之间,起匹配转速和传递转矩的作用,在现代机械中应用极为广泛 国内的减速器多以齿轮传动、蜗杆传动为主,但普遍存在着功率与重量比小,或者传动比大而机械效率过低的问题。另外,材料品质和工艺水平上还有许多弱点,特别是大型的减速器问题更突出,使用寿命不长。国外的减速器,以德国、丹麦和日本处于领先地位,特别在材料和制造工艺方面占据优势,减速器工作可靠性好,使用寿命长。但其传动形式仍以定轴齿轮传动为主,体积和重量问题,也未解决好。 当今的减速器是向着大功率、大传动比、小体积、高机械效率以及使用寿命长的方向发展。减速器与电动机的连体结构,也是大力开拓的形式,并已生产多种结构形式和多种功率型号的产品。近十几年来,由于近代计算机技术 Pd=5.5kW i=32 i3=3.5 i0=9.14 i1=3.5 i2=2.6 nⅠ=1440 rmin nⅡ=411.4rmin nⅢ=158rmin n主=45rmin PⅠ5.34kW PⅡ5.07kW PⅢ4.82kW PⅣ====4.35 kW TⅠ=35.4N·m TⅡ118N·m TⅢ== 与数控技术的发展,使得机械加工精度,加工效率大大提291N·m 高,从而推动了机械传动产品的多样化,整机配套的模块T主=化,标准化,以及造型设计艺术化,使产品更加精致,美923N·m 观化。 [σH]1=715 在21世纪成套机械装备中,齿轮仍然是机械传动的基MPa 本部件。CNC机床和工艺技术的发展,推动了机械传动结[σH] 构的飞速发展。在传动系统设计中的电子控制、液压传动、Mpa 齿轮、带链的混合传动,将成为变速箱设计中优化传动组合m=10 的方向。在传动设计中的学科交叉,将成为新型传动产品发δ1=16° 展的重要趋势。 【关键词】 减速器 轴承 齿轮 机械传动 The Design of The Plate Mill’s Gear Jia Genqin Class of 0601 Machinery Manufacturing δ2=74° d1=100mm d2=350mm d a22=725 =355.4mm f2Abstract:Wheel gear’s spreading to move is a the most d =wide kind of the application spreads to move a form in the 343.25mm modern machine.Its main advantage BE: R=182mm 1、spreads to move to settle, work than in a moment b=50mm steady, spread to move accurate credibility, can deliver θa1=θa2=space arbitrarily sport and the motive of the of two stalks;3° Power and speed scope; 2、applies are wide; θf1=θf2=4° δa1=19° spreads to move an efficiency of, soon and deliver δa2=77° a function of turning , the application is extremely δf1=12°extensive in the modern machine. δf2=70° Local deceleration machine much with the wheel gear V=0.83ms spread to move, the pole spread to move for lord, but m=3 widespread exist power and weight ratio small, or spread d1=75mm to move ratio big but the machine efficiency lead a low d2=195mm problem.There are also many weaknesses on material b2=75mm quality and craft level moreover, the especially large b1=80mm deceleration machine’s problem is more outstanding, the a=135mm service life isn’t long.The deceleration machine of abroad, d a1=81mm with Germany, Denmark and Japan be placed in to lead a d a2=position, occupying advantage in the material and the 201mm manufacturing craft specially, decelerating the machine d f1=work credibility like, service life long.But it spreads to 67.5mm move a form to still take settling stalk wheel gear to spread d f2=to move as lord, physical volume and weight problem, 187.5mm don’t also resolve like V=1.61ms The direction which decelerates a machine to is the m=2 facing big power and spread to move ratio, small physical d1=50mm volume, several in the last yearses, control a technical d2=176mm development because of the modern calculator technique b2=50mm and the number, make the machine process accuracy, b1=55mm process an efficiency to raise consumedly, pushed a a=113mm machine to spread the diversification of movable property d a2=article thus, the mold piece of the whole machine kit turns, 180mm standardizing, and shape design the art turn, making d f1=45mm product more fine, the beauty turns. d f2= Become a set a machine material in 21 centuries 171mm medium, the wheel gear is still a machine to spread a V=3.768ms dynamic basic parts C tool machine and the craft d=35mm technical development, pushed a machine to spread to d1=40mm move structure to fly to develop soon.Be spreading to d2=45mm move the electronics control, liquid in the system design to d3=55mm press to spread to move, wheel gear, take the mixture of d4=47mm chain to spread to move, will become become soon a box to d5=40mm design in excellent turn to spread to move a combination d6=35mm of direction.The academics that is in spread move the l1=37.5 mm design crosses, will become new spread a movable l2=73mm property article the important trend of the development. l3=10mm Key words: Reduction gear Bearing gear l4=70mm mechanical drive 一、传动装置的总体设计 (一)传动方案分析 1、传动装置的布局要求: l5=70mm l6=80mm Ft2=2985N Fr2=1086N 在分析盘磨机传动装置方案时,首先应该满足机械设Fn2=3177N 计的基本要求,此外还要保证工作可靠,传动效率高,结FHA=1003N 构简单,工艺性能好等,同时应注意常用机械传动方式的FHB=1982N 特点及在布局上的要求: FVA=-1261(1)带传动平稳性好,能缓冲吸振,但承载能力小,N 宜布置在高速级; FVB= 2347N (2)链传动平稳性差,且有冲击、振动,宜布置在d=25mm 低速级; d1=25mm (3)蜗杆传动放在高速级时蜗轮材料应选用锡青铜,d2=30mm 否则可选用铝铁青铜; d3=35mm (4)开式齿轮传动的润滑条件差,磨损严重,应布d4=30mm 置在低速级; (5)锥齿轮、斜齿轮宜放在高速级; d5=25mm l1=32mm 根据工作需要,所以,盘磨机与减速器之间应该选用l2=78mm 锥齿轮进行传动。 2、传动系统方案的拟定 盘磨机传动系统方案如下图所示: l3=10mm l4=48mm l5=35mm d=18mm d1=18mm d2=25mm d3=30mm d4=54mm d5=30mm d6=25mm l1=40mm 电动机1→联轴器2→直齿圆柱齿轮减速3→联轴器5 l2=70mm →锥齿轮传动6→主轴7→盘磨机4 l3=102.5mm 电动机1通过联轴器2将动力传入直齿圆柱齿轮减速l4=55mm 器3,再经过直齿圆柱齿轮减速器3通过联轴器5将动力传至锥齿轮6,由锥齿轮6通过主轴7传送到盘磨机4上l5=15mm l6=15mm 工作。采用两级圆柱齿轮减速器,由于齿轮相对于轴承为d1=72mm 不对称布置,因而沿齿向载荷分布不均,要求轴有较大刚D1=168mm 度,应此选用展开式。 D0=120mm

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