扭簧设计计算表格

扭簧线径d（mm）2请输入扭簧中径D（mm)13请输入有效圈数n10请输入初始角度φ1(°)20请输入工作角度φ2(°)100请输入固定侧力臂l1（mm)7.5请输入受力侧力臂l2（mm)7请输入负荷类型静负荷请选择扭簧材料选择不锈钢A组请选择项目公式计算结果弹簧弹性模量E(MPa)系统查表185000扭簧内径D1(mm)D1=D-d11扭转变形角φ(°)φ=φ2-φ180内径减小量△D△D=φ2*D/(360*n)0.36导杆直径D´(mm)D´=0.9*(D1-△D)9.58判断是否长扭臂(l1+l2)≥0.09*Pi*D*n短扭臂短扭臂长扭臂扭矩T1(N.mm)T1=T´*φ1124.184扭矩T2(N.mm)T2=T´*φ2620.92曲度系数Kb顺向扭转时为11弯曲应力系数K1´系统查表0.68材料抗拉强度Rm（N/mm²)系统查表1400许用弯曲应力σ（N/mm²)σ=K´*σb952最大弯曲应力σmax（N/mm²)σmax=32*T2/(Pi*d³)790.58最小弯曲应力σmax（N/mm²)σmin=32*T1/(Pi*d³)158.12上限应力系数σmax/Rm0.565下限应力系数σmin/Rm0.11循环特征系数γγ=σmin/σmax0.2试验弯曲应力系数K2系统查表0.75扭转弹簧设计计算引用标准：GB/T23935-2009圆柱螺旋弹簧设计计算适用范围：适用于冷拉钢丝（直径小于12mm),材质为不锈钢及琴钢丝以下为自动计算参数输入设计计算强度校核扭簧特性校核刚度系数T´{N.mm/(°)}6.2092强度校核要求：从上述计算中取坐标点（下限应力系数，上限应力系数），若该点在γ=σmin/σmax与要求达到的寿命次数斜线的交点以下，则说明此扭簧的疲劳寿命N大于寿命次数，符合寿命要求，否则达不到此寿命要求。3667DnEd′T4)]21(31[3367′T4llDnEd试验证弯曲应力σs（N/mm²)σs=K2´*Rm1050试验扭矩Ts(N.mm)Ts=Pi*d³*σs/32824.67试验扭转角度φφs=Ts/T´132.81T1≥0.2*Ts否T2≤0.8*Ts是φ1≥0.2*φs否φ1≤φs是扭簧特性校核扭簧特性校核当扭簧特性曲线有要求时需做特性校核，无特殊要求不做此校核线径请从附表标准系列中选择实际导杆直径不可大于此计算值如钢丝直径非列表所示，此值无效要求达到的寿命次数数弹簧材料弹性模量E(MPa)试验弯曲应力系数l1+l214.5不锈钢A组1850000.750.09*Pi*D*n36.756603不锈钢B组1950000.75不锈钢C组1950000.75琴钢丝E组2060000.78短扭臂琴钢丝F组2060000.78长扭臂琴钢丝G组2060000.78负荷类型不锈钢A组不锈钢B组不锈钢C组琴钢丝E组琴钢丝F组静负荷0.680.680.680.70.7动负荷有限疲劳0.550.550.550.580.58动负荷无限疲劳0.450.450.450.490.49弹簧弹性模量是否长扭臂判断扭转刚度弯曲应力系数3667DnEd′T4)]21(31[3367′T4llDnEd6.20926.1366琴钢丝G组0.70.580.493667DnEd′T4)]21(31[3367′T4llDnEd直径mm不锈钢A组不锈钢B组不锈钢C组不锈钢D组琴钢丝E组0.08----23300.09----23200.1----23100.12----23000.14----22900.16----22800.18----22700.2170020501970175022600.22170020501950175022400.25170020501950175022200.28165019501950172022200.3165019501950172022100.32165019501920168022100.35165019501920168022100.4165019501920168022000.45160019001900168021900.5160019001900165021800.55160019001850165021700.6160019001850165021600.63155018501850165021400.7155018501820165021200.8155018501820162021100.9155018501800162020601155018501800162020201.11450175017501620-1.2145017501750158019201.4145017501700158018701.51400165017001550-1.6140016501650155018301.8140016501600155018002140016501600155017602.2132015501550155017202.5132015501550151016802.8123014501500151016303123014501500151016103.2123014501450148015603.5123014501450148015204123014501400148014804.511001350135014001410511001350135013301380材料抗拉强度表5.5110013501300133013306110013501300123013206.3102012701250--7102012701250--8102012701200--9100011501150--1098010001150--11-1000---12-1000---注：1.引用标准：YB/T5311-2006重要用途碳素弹簧钢丝、GB/T24588-2009不锈弹簧钢丝2.引用的抗拉强度均取下限值，不锈钢C组抗拉强度取冷拉钢丝的抗拉强度3.该表中的数值请勿随意更改或删除，否则主页计算会出错单位：MPa琴钢丝F组琴钢丝G组2710-2700-2690-2680-2670-2660-2650-2640-2620-2600-2600-2600-2590-2590-2580-2570-2560-2550-2540-2520-2500-2490-2390-23501850--2270182022001780--216017502060170019701670187016201770162017201570169015701670157016201470157014701500147014801420材料抗拉强度表1440140014201350--------------1.引用标准：YB/T5311-2006重要用途碳素弹簧钢丝、GB/T24588-2009不锈弹簧钢丝2.引用的抗拉强度均取下限值，不锈钢C组抗拉强度取冷拉钢丝的抗拉强度3.该表中的数值请勿随意更改或删除，否则主页计算会出错