KISSsoft
教程
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系列:圆柱齿轮的计算
1. 设计任务
本系列教程将介绍如何对已知数据的齿轮通过 KISSsoft 软件进行详细
的
分析
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和计算,从而得出一系列的结果。
因此,圆柱齿轮完整计算需要规定以下几个方面:
1)所需原始的数据输入 KISSsoft 重新计算;
2)按照 DIN3990 标准
规范
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;
3)根据实际要求创建文档的级别标准。
1.1 输入原始数据
对于随后进行的数据输入说明,请参阅本教程系列的第二章内容:
1.1.1 载荷参数性能
功率[P] 3.5 kw
驱(主)动速度[n] 2500 1/min(小齿轮 1)
应用系数[KA] 1.35
寿命周期 750 h
1.1.2 几何
法面模数[mn] 1.5 mm
斜齿螺旋角[β] 25 °(度)
法面压力角 20 °(度)
齿数 16/43
中心距[a] 48.9 mm
变位系数[x] 小齿轮 1 0.3215
齿宽[b] 齿 1/齿 2 14/14.5 mm
1.1.3 分度齿廓
齿根高系数[h*fP] 齿根半径系数
齿顶高系数[h*aP]
齿 1 主动轮
1.25 0.3 1.0
齿 2
1.25 0.3 1.0
1.1.4 附加数据
材料:·
材料 硬度
弯曲疲劳强度
极限
齿面接触疲劳
极限
齿 1 主动轮 15 CrNi 6 表面硬化
HRC 60
430N/mm2 1500N/mm2
齿 2 15 CrNi 6 表面硬化
HRC 60
430N/mm2 1500N/mm2
润滑:
脂润滑 微量润滑油 GB00 80°C
基圆正切长度公差范围:
齿数 最大基圆正切长度
[Wkmax]
最小基圆正切长度
[Wkmin]
齿 1 小齿轮 3 11.782mm 11.758mm
齿 2 6 25.214mm 25.183mm
质量[Q] (DIN3961) 8/8
2 主要轮齿修形方法 轮齿齿面轮廓修形(线性和抛物线形)
接触方式 正常不发生改变或不正确啮合
小齿轮轴的性质
图 1.1 小齿轮轴的应变图
ISO 6336 图片 13a I=53mm;S=5.9mm;dsh=14mm
2. 解决方式
2.1 启动程序
通常在注册以及安装之后才可以启动 KISSsoft 软件,通常的步骤有:
开始>程序>KISSsoft 04-2010>KISSsoft,以下为整个操作的截图 2.1:
2.2 计算方式的选择:
在树型窗口下有一个活动的 Module 模块,选择双圆柱齿轮副这样一个
命令。
图 2.2 双圆柱齿轮副选择
同时便可以打开一个命令窗口:
图 2.3 双圆柱齿轮副的输入窗口
下面我们可以对怎样对这些双圆柱齿轮副的数据设置进行简单介绍。
2.3 齿轮副的几何参数:
在几何参数栏中你可以输入法向模数(1.5mm),压力角(20mm),
倾斜角(25°),中心距(48.9mm)、齿数(16/43),齿宽(14/14.5mm),
变位系数(0.3215/...)和质量输入窗口(8 /8)等基本数据,通过对
这些数据的设置就能够逐步完成初步的图 2.3 界面的参数的输入,我
们才可以输入齿轮 2 的中心距及变位系数,如果没有齿轮 1 参数的
输入,那么齿轮 2 的这两个参数将无法激活。
然而我们还可以通过点击标签 对该参数一定的计算方法得到需
要数值,我们还可以对该计算模块进行一定的设置,如图 2.4 所示:
图 2.4 计算模块的特殊设置 质量标准不依赖于计算方式
图 2.5 输入菜单—关于几何形状的一些数据列表
点击输入值的右边的 转换按钮,为每一个输入值提供一系列的附加
数值的计算,或者提供一些特殊数值的计算。比如你想输入角度,右击
空的输入区域,便会出现另一个界面,你就可以输入度数、分和秒。
图 2.6 额外的输入,包括法面模数和角度等细节的参数设置
2.4 载荷相关数据及计算的方法
在载荷一栏中,你可以定义更多的动力学的参数,要求的寿命时间(750h)
和应用系数(1.35)。比如,扭矩可以输入功率(3.5kw)和速度(2500
1/min),然而在不同的例子里,如果你想输入扭矩并计算功率,那么
就请点击输入栏右边的一个“selection”按钮从扭矩、功率、速度后面
都有圆圈让你根据要求点取,在“detail”一栏中你可以输入更多的关
于载荷的一些参数,
正确设置分度圆齿轮的载荷分布。在选择图中计算方法一栏的下拉菜单
中选择你需要的计算方式。如图 2.7 所示,在这个案例中,你必须将在
拉菜单中选择 ISO6363:2006 MethodB。
图 2.7 输入窗口—基础数据栏,载荷数据组
你还可以对齿向载荷分布系数 KHß(齿面接触强度)进行编辑和定义,
你可以点取正方框来激活本是灰色的参数输入框,你还可以点击如图
2.8所示的 叠加按钮来对该系数进行进一步定义。
图 2.8定义齿向载荷分布系数 KHß(齿面接触强度)
去计算该载荷参数,你必须输入以下几个基本的基本选项:
-主要轮齿修形方法(在这次的案例中选择 End Relief 表示对轮齿齿面
轨迹修形,该选项修形方式为线性和抛物线)
-轴的几种类型 按照图 2.9 所示,点击小齿轮轴类型一栏后面的 信
息按钮,图中案例中默认的为 A选项。你还可以输入相应的轴承距离 I,
只要去激活选项后面的选择按钮(点击正方框)。
-你也必须选择啮合后的接触位置的几种形式,在没有验证的情况下,
请用户谨慎选择合适的下拉菜单选项。
注意:你必须正确选择图上从 A到 E其中一种的轴分布方式示意图,
然后对其进行齿向载荷分布系数 KHß(齿面接触强度)的计算。如图 2.9
中的五种轴的配置结构示意图都是依据 ISO6336(or DIN3990)标准来定
义的。
齿向载荷分布系数KHß(齿面接触强度)反应了齿面上载荷沿接触线分
布不均的程度,你可以在KISSsoftAG软件当中单独对该指令进一步的设
置,请参考文件当中的“kisssoft-anl-002-D-Eingabe-des-Breitenlastfaktors-KHß.doc”。
2.5 材料和润滑
在基本数据中有一栏是材料和润滑选项块的,你可以在如图2.10所示的
下拉菜单中选择制造齿轮所需要的相关材料以及热处理方式等,比如该
案例中就默认的选择15CrNi6,碳化钢作为齿轮的材料标准。
你还可以选择单独的润滑标准和润滑油的种类。
图 2.10 输入窗口-关于材料和润滑方式的数据设置
通过点击 按钮对润滑油的工作温度进行设置,如图
2.6 分度圆齿廓
在分度圆标签当中,你可以输入进一步的定义齿轮的数据,比如齿 1和
齿 2 分度圆齿廓中的齿根高参数[*fP] 、齿根半径因素[*fP] 、齿顶高参
数[h*aP]等。
图 2.11 输入窗口-“分度圆齿廓”标签
2.7公差
在通常的设计和制造当中还要考虑生产出的齿厚有一个偏差,在
KISSsoft软件当中可以在公差标签一栏中对其进行设计定义,如图2.12
所示:
图 2.12 输入窗口-公差标签
输入基圆的正切长度需要点击公差这个标签,在余量一栏里选择齿厚偏
差后面的转换按钮 ,出现中间的图 2.13所示的两个窗口:
图 2.13 计算基圆正切长度
你现在可以输入齿数的跨度值和基圆正切长度的最大值最小值,然后点
击中间的计算按钮并且结束后点击接受,将转换好的数值提送到上一级
的主窗口去。
注意:当变位的形式已经被两个齿轮接受之后,你就不能输入偏移值。
否则,你将会接受到一个不正确的数值,并且你必须重复的完成这样的
一个的尺寸大小验算的流程。
注意:你可以在步骤 2 和步骤 3 之间改变齿轮数跨度值。操作步骤有两
种:1.在公差标签里的设置一栏点击齿轮跨度值后面的选择按钮激活该
输入框,然后对其数值进行修改,如图 2.14所示;
图 2.14 输入界面-公差标签当中的设置一栏
3. 或者直接在如图 2.13 里面的转换界面中对其修改。
2.7 润滑
在基本输入界面当中的“材料和润滑”一栏中,我们会默认的将一种润
滑温度普及到各种不同种类润滑方式当中。在特殊要求情况下,你还可
以在下拉菜单中选择你你需要的润滑种类和方式。
在对润滑油和油脂定义润滑温度的同时你也就定义了齿轮本身的工作
温度。处于这个原因,润滑温度对于计算有效润滑粘度起到了异常重要
的作用。然而,环境温度对该计算却没有太大的影响。
例外:
蜗杆:环境温度是必须要考虑的参数,用以计算温度安全系数。
塑料齿轮:当塑料齿轮的受载情况完全取决于齿轮本身的温度时,你就
必须输入跟其相关的一系列温度参数,包括环境温度。
图 2.15 没有润滑油情况下齿轮运行的温度
图 2.16 在润滑脂润滑情况下的齿轮运行温度
2.9计算
点击计算按钮 或者点击快捷键 F5 去计算各项载荷值。当齿轮间的
啮合方式无法正常进行下去时,就会有相关的信息提示你齿向载荷分布
系数 KHß数值太高,需要修正。
这就意味着针对 KHß的计算是建立在不正确齿向啮合方式上的。当你在
实际生产车间检验这样一个啮合过程时,你就能判断得出这个结论是过
于保守还是很贴切于实际了。
如果你在整个运算过程中没有遇到任何问题,那么计算出来的数据将会
在界面中得到体现,见图 2.18:
图 2.18 整个教程最终需要的得到的参数数据
点击report当中的generate键,就可以自动生成满足您要求的表格,
格式可以根据要求自行修改,如下:
Report
KISSsoft - Release 04-2010
KISSsoft-Entwicklungs-Version KISSsoft AG CH-8634
HOMBRECHTIKON
File
Name : Tutorial-008_ISO
Changed by : ho on: 19.02.2010 at: 10: 53: 31
Important hint: At least one warning has occurred during the
calculation: 在计算中会有重要的提示指导你纠正设置参数时犯得
错误。
1-> Indication:
With the setting ’Position of the contact pattern:
unfavorable’
unrealistic high face load coefficient KHb is given for gears
with tooth trace corrections.
CALCULATION OF A HELICAL GEAR PAIR 螺旋齿轮副
Drawing or article number:
Gear 1: 0.000.0
Gear 2: 0.000.0
Calculation method ISO 6336: 2006 Method B
------- GEAR 1 -------- GEAR 2 --
Power (kW) [P] 3.500
Speed (1/min) [n] 2500.0 930.2
Torque (Nm) [T] 13.4 35.9
Application factor [KA] 1.35 应用系数
Required service life [ H] 750.00
Gear driving (+)/driven (-) + - 齿轮驱动(-)和从动(+)
1. TOOTH GEOMETRY AND MATERIAL 齿几何尺寸和材料
(Geometry calculation according ISO 21771)
------- GEAR 1 -------- GEAR 2 --
Center distance (mm) [a] 48.900
Center distance allowances (mm) [Aa. e/i] 0.030/-0.030
Normal module (mm) [mn] 1.5000
Pressure angle at normal section (°) [alfn] 20.0000
Helix angle at reference circle (°) [beta] 25.0000
Number of teeth [ z] 16 43
Face width (mm) [ b] 14.00 14.50
Hand of gear right left
Accuracy grade [ Q-ISO1328] 8 8 齿轮的精度等级
Inner diameter (mm) [di] 0.00 0.00
Inside diameter of rim (mm) [dbi] 0.00 0.00
Material
Gear 1: 15 CrNi 6, Case-carburized steel, case- hardened
ISO 6336-5 Figure 9/10 (MQ), core strength >=25HRC Jominy J=12
mm
=25HRC Jominy J=12
mm=0.85)
Fatigue strength. tooth root stress (N/mm²)
[sigFlim] 430.00 430.00
Fatigue strength for Hertzian pressure (N/mm²)
[sigHlim] 1500.00 1500.00
Tensile strength (N/mm²) [Rm] 1000.00 1000.00
Yield point (N/mm²) [Rp] 685.00 685.00
Young’s modulus (N/mm²) [E] 206000 206000
Poisson’s ratio [ny] 0.300 0.300 泊松比
Average roughness, Ra, tooth flank (µm) [RAH] 0.60 0.60
Mean roughness height, Rz, flank (µm) [RZH] 4.80 4.80
Mean roughness height, Rz, root (µm) [RZF] 20.00 20.00
Tool or reference profile of gear 1 :
Reference profile
1.25/0.30/1.0 ISO 53.2 Profile B
Addendum coefficient [haP*] 1.000
Dedendum coefficient [hfP*] 1.250
Tip radius factor [rhoaP*] 0.000
Root radius factor [rhofP*] 0.300
Tip form height coefficient [hFaP*] 0.000
Protuberance height factor [hprP*] 0.000
Protuberance angle [alfprP] 0.000
Ramp angle [alfKP] 0.000
not topping
Tool or reference profile of gear 2 :
Reference profile
1.25/0.30/1.0 ISO 53.2 Profile B
Addendum coefficient [haP*] 1.000
Dedendum coefficient [hfP*] 1.250
Tip radius factor [rhoaP*] 0.000
Root radius factor [rhofP*] 0.300
Tip form height coefficient [hFaP*] 0.000
Protuberance height factor [hprP*] 0.000
Protuberance angle [alfprP] 0.000
Ramp angle [alfKP] 0.000
not topping
Sum of reference profile gears:
Dedendum reference profile (module) [hfP*] 1.250 1.250
Tooth root radius Refer. profile (module)
[rofP*] 0.300 0.300
Addendum Reference profile (module) [haP*] 1.000 1.000
Protuberance height (module) [hprP*] 0.000 0.000
Protuberance angle (°) [alfprP] 0.000 0.000
Buckling root flank height (module) [hFaP*] 0.000 0.000
Buckling root flank angle (°) [alfKP] 0.000 0.000
Type of profile modification:
No
Tip relief (µm) [Ca] 2.00 2.00
Lubrication type Grease lubrication
Type of grease Grease: Microlube GB 00
Lubricant base Mineral-oil base
Kinem. viscosity base oil at 40 °C (mm²/s) [nu40] 700.00
Kinem. viscosity base oil at 100 °C (mm²/s) [nu100] 35.00
FZG test A/8.3/90 step [FZGtestA] 12
Specific density at 15 °C (kg/dm³) [roOil] 0.900
Grease temperature (°C) [TS] 80.000
------- GEAR 1 -------- GEAR 2 --
Overall transmission ratio [itot] -2.688
Gear ratio [u] 2.688
Transverse module (mm) [mt] 1.655
Pressure angle at Pitch circle (°) [alft] 21.880
Working transverse pressure angle (°) [alfwt] 22.100
[alfwt. e/i] 22.186/22.013
Working pressure angle at normal section (°) [alfwn] 20.199
Helix angle at operating pitch circle (°)
[betaw] 25.034
Base helix angle (°) [betab] 23.399
Reference center distance (mm) [ad] 48.824
Sum of profile shift coefficients [Summexi] 0.0506
Profile shift coefficient [x] 0.3215 -0.2709
Tooth thickness (Arc) (module) [sn*] 1.8048 1.3736
Tip alteration (mm) [k] 0.000 0.000
Reference diameter (mm) [d] 26.481 71.168
Base diameter (mm) [dB] 24.573 66.041
Tip diameter (mm) [da] 30.446 73.355
(mm) [da. e/i] 30.446/30.436 73.355/73.345
Tip diameter allowances (mm) [Ada. e/i] 0.000/-0.010
0.000/-0.010
Tip chamfer/tip rounding (mm) [hK] 0.000 0.000
Tip form diameter (mm) [dFa] 30.446 73.355
(mm) [dFa. e/i] 30.446/30.436 73.355/73.345
Operating pitch diameter (mm) [dw] 26.522 71.278
(mm) [dw. e/i] 26.538/26.506 71.322/71.234
Root diameter (mm) [df] 23.696 66.605
Generating Profile shift coefficient [xE. e/i] 0.2601/0.2367
-0.3275/-0.3577
Manufactured root diameter with xE (mm) [df. e/i] 23.511/23.441
66.436/66.345
Theoretical tip clearance (mm) [c] 0.375 0.375
Effective tip clearance (mm) [c. e/i] 0.540/0.429 0.537/0.437
Active root diameter (mm) [dNf] 25.050 68.670
(mm) [dNf. e/i] 25.086/25.020 68.719/68.627
Root form diameter (mm) [dFf] 24.894 67.921
(mm) [dFf. e/i] 24.820/24.794 67.816/67.761
Reserve (dNf-dFf)/2 (mm) [cF. e/i] 0.146/0.100 0.479/0.405
Addendum (mm) [ha] 1.982 1.094
(mm) [ha. e/i] 1.982/1.977 1.094/1.089
Dedendum (mm) [hf] 1.393 2.281
(mm) [hf. e/i] 1.485/1.520 2.366/2.411
Roll angle at dFa (°) [xsi_dFa. e/i] 41.909/41.870
27.702/27.682
Roll angle to dNa (°) [xsi_dNa. e/i] 41.909/41.870
27.702/27.682
Roll angle to dNf (°) [xsi_dNf. e/i] 11.766/10.969
16.480/16.189
Roll angle at dFf (°) [xsi_dFf. e/i] 8.135/7.696 13.371/13.160
Tooth height (mm) [H] 3.375 3.375
Virtual gear no. of teeth [zn] 20.960 56.329
Normal Tooth thickness at Tip cyl. (mm) [san] 0.874 1.225
(mm) [san. e/i] 0.806/0.771 1.166/1.127
Normal space width at tip cylinder (mm) [efn] 0.000 1.352
(mm) [efn. e/i] 0.000/0.000 1.388/1.409
Max. sliding velocity at tip (m/s) [vga] 1.436 0.919
Specific sliding at the tip [zetaa] 0.610 0.591
Specific sliding at the root [zetaf] -1.443 -1.567
Sliding factor on tip [Kga] 0.414 0.265
Sliding factor on root [Kgf] -0.265 -0.414
Pitch on reference circle (mm) [pt] 5.200
Base pitch (mm) [pbt] 4.825
Transverse pitch on contact-path (mm) [pet] 4.825
Lead height (mm) [pz] 178.408 479.470
Axial pitch (mm) [px] 11.150
Length of path of contact (mm) [ga, e/i] 6.555 ( 6.635/6.456)
Length T1-A, T2-A (mm) [T1A, T2A] 2.432(2.352/ 2.523)
15.965(15.965/15.954)
Length T1-B (mm) [T1B, T2B] 4.162(4.162/ 4.154)
14.235(14.155/14.323)
Length T1-C (mm) [T1C, T2C] 4.989(4.967/ 5.011)
13.408(13.350/13.466)
Length T1-D (mm) [T1D, T2D] 7.257(7.177/ 7.348)
11.140(11.140/11.129)
Length T1-E (mm) [T1E, T2E] 8.987(8.987/ 8.979) 9.410(9.330/
9.498)
Length T1-T2 (mm) [T1T2] 18.397 (18.317/18.477)
Diameter of single contact point B (mm)
[d-B] 25.945(25.945/25.940) 71.916(71.853/71.986)
Diameter of single contact point D (mm)
[d-D] 28.540(28.459/28.633) 69.698(69.698/69.691)
Addendum contact ratio [eps] 0.829(0.833/ 0.822) 0.530(0.542/
0.516)
Minimum length of contact line (mm) [Lmin] 19.611
Transverse contact ratio [eps_a] 1.359
Transverse contact ratio with allowances [eps_a. e/m/i]
1.375/1.357/1.338
Overlap ratio [eps_b] 1.256
Total contact ratio [eps_g] 2.614
Total contact ratio with allowances [eps_g. e/m/i]
2.631/2.612/2.594
2. FACTORS OF GENERAL INFLUENCE 因素的总体影响:
------- GEAR 1 -------- GEAR 2 --
Nominal circum. force at pitch circle (N)
[Ft] 1009.7
Axial force (N) [Fa] 470.8
Radial force (N) [Fr] 405.5
Normal force (N) [Fnorm] 1185.6
Tangent. load at p. c. d. per mm (N/mm) (N/mm)
[w] 72.12
Only as information: Forces at pitch circle:
Nominal circumferential force (N) [Ftw] 1008.1
Axial force (N) [Faw] 470.8
Radial force (N) [Frw] 409.4
Circumferential speed pitch d. . (m/sec) [v] 3.47
Running-in value (µm) [yp] 1.1
Running-in value (µm) [yf] 1.0
Correction coefficient [CM] 0.800
Gear body coefficient [CR] 1.000
Reference profile coefficient [CBS] 0.975
Material coefficient [E/Est] 1.000
Singular tooth stiffness (N/mm/µm) [c’] 12.156
Meshing stiffness (N/mm/µm) [cgalf] 15.426
Meshing stiffness (N/mm/µm) [cgbet] 13.112
Reduced mass (kg/mm) [mRed] 0.00235
Resonance speed (min-1) [nE1] 48315
Nominal speed (-) [N] 0.052
Subcritical range
Running-in value (µm) [ya] 1.1
Bearing distance l of pinion shaft (mm) [l] 53.000
Distance s of pinion shaft (mm) [s] 5.900
Outside diameter of pinion shaft (mm) [dsh] 14.000
load according ISO 6336/1 Diagram 16 [-] 0
0: a), 1: b), 2: c), 3: d), 4: e)
Coefficient K’ following ISO 6336/1 Diagram 13
[K’] 0.80
Without support effect
Tooth trace deviation (active) (µm) [Fby] 15.11
from deformation of shaft (µm) [fsh*B1] 2.56
Tooth trace: with end relief
Position of Contact pattern: not verified or inappropriate
from production tolerances (µm) [fma*B2] 14.36
Tooth trace deviation, theoretical (µm) [Fbx] 17.77
Running-in value (µm) [yb] 2.7
Dynamic factor [KV] 1.051
Width factor - flank [KHb] 1.968
- Tooth root [KFb] 1.676
- Scuffing [KBb] 1.968
Transverse coefficient - flank [KHa] 1.341
- Tooth root [KFa] 1.341
- Scuffing [KBa] 1.341
Helix angle coefficient scuffing [Kbg] 1.242
Number of load changes (in mio.) [NL] 112.500 41.860
3. TOOTH ROOT STRENGTH 齿根强度计算
------- GEAR 1 -------- GEAR 2 --
Calculation of Tooth form coefficients according to method: B
(Calculate tooth form factor YF with manufacturing addendum mod.
xE. e)
Tooth form factor [YF] 1.37 1.67
Stress correction factor [YS] 2.15 1.84
Working angle (°) [alfen] 21.64 18.97
Bending lever arm (mm) [hF] 1.52 1.84
Tooth thickness at root (mm) [sFn] 3.14 3.15
Tooth root radius (mm) [roF] 0.65 0.82
(hF* = 1.012/1.225 sFn* = 2.093/2.102 roF* = 0.431/0.545 dsFn
= 24.00/67.03 alfsFn = 30.00/30.00)
Contact ratio factor [Yeps] 1.000
Helix angle factor [Ybet] 0.792
Deep tooth factor [YDT] 1.000
Gear rim factor [YB] 1.000 1.000
Effective facewidth (mm) [beff] 14.00 14.50
Nominal shear stress at tooth root (N/mm²)
[sigF0] 112.30 113.33
Tooth root stress (N/mm²) [sigF] 358.07 361.35
Permissible bending stress at root of test gear
Support factor [YdrelT] 0.999 0.994
Surface factor [YRrelT] 0.957 0.957
Size coefficient (Tooth root) [YX] 1.000 1.000
Finite life factor [YNT] 0.930 0.949
[YdrelT*YRrelT*YX*YNT] 0.889 0.902
Alternating bending coefficient [YM] 1.000 1.000
Stress correction factor [Yst] 2.00
Limit strength tooth root (N/mm²) [sigFG] 764.63 776.06
Permissible tooth root stress (N/mm²)
[sigFP=sigFG/SFmin] 588.17 596.97
Required safety [SFmin] 1.30 1.30
Safety for Tooth root stress [SF=sigFG/sigF] 2.14 2.15
Transmittable power (kW) [kWRating] 5.75 5.78
4. SAFETY AGAINST PITTING (TOOTH FLANK) 齿面点蚀安全系数
------- GEAR 1 -------- GEAR 2 --
Zone factor [ZH] 2.291
Elasticity coefficient (N^.5/mm) [ZE] 189.812
Contact ratio factor [Zeps] 0.858
Helix angle factor [Zbet] 0.952
Effective facewidth (mm) [beff] 14.00
Nominal flank pressure (N/mm²) [sigH0] 686.65
Surface pressure at Operating pitch circle (N/mm²)
[sigHw] 1328.53
Single tooth contact factor [ZB, ZD] 1.00 1.00
Flank pressure (N/mm²) [sigH] 1328.53 1328.53
Lubrication factor [ZL] 1.096 1.093
Speed factor [ZV] 0.974 0.975
Roughness factor [ZR] 0.937 0.939
Material mating factor [ZW] 1.000 1.000
Finite life factor [ZNT] 0.975 1.014
[ZL*ZV*ZR*ZNT] 0.976 1.014
Small amount of pitting permissible (0=no, 1=yes) 0 0
Size coefficient (flank) [ZX] 1.000 1.000
Limit strength pitting (N/mm²) [sigHG] 1464.48 1521.64
Permissible surface pressure (N/mm²) [sigHP=sigHG/SHmin]
1541.56 1601.73
Safety for surface pressure at pitch circle
[SHw] 1.10 1.15
Required safety [SHmin] 0.95 0.95
Transmittable power (kW) [kWRating] 4.71 5.09
Safety for stress at single tooth contact
[SHBD=sigHG/sigH] 1.10 1.15
(Safety regarding nominal torque) [(SHBD)^2] 1.22 1.31)
5. STRENGTH AGAINST SCUFFING 抗齿面划伤的载荷
Calculation method according to ISO/TR 13989
The calculation of load capacity for scuffing does not cover
grease.
The FZG-Test stage [FZGtestA] is only estimated for grease.
The calculation can only serve as a rough guide. !
Lubrication coefficient (for lubrication type)
[XS] 1.200
Lubricant factor [XL] 1.000
Multiple meshing factor [Xmp] 1.0
Relative structure coefficient (Scoring) [XWrelT] 1,000
Thermal. contact factor (N/mm/s^.5/K) [BM] 13.795 13.795
Relevant tip relief (µm) [Ca] 2.00 2.00
Optimum tip relief (µm) [Ceff] 6.31
Effective facewidth (mm) [beff] 14.000
Applicable circumferential force/tooth width (N/mm)
[wBt] 269.984
(Kbg = 1.242, wBt*Kbg = 335.345)
Flash factor (°K*N^-.75*s^.5*m^-.5*mm) [XM] 1.581
Pressure angle factor (eps1:
0.990, eps2: 0.829) [Xalfbet] 0.530
Flash temperature-criteria
Tooth mass temperature (°C) [theMi] 93.52
theM = theoil + XS*0.47*Xmp*theflm [theflm] 23.97
Scuffing temperature (°C) [theS] 343.23
Coordinate gamma (point of highest temp.) [Gamma] 0.788
[Gamma. A]= -0.513 [Gamma. E]= 0.801
Highest contact temp. (°C) [theB] 162.15
Approach factor [XJ] 1.000
Load sharing factor [XGam] 1.151
Dynamic viscosity (mPa*s) [etaM] 63.69
Coefficient of friction [mym] 0.073
Required safety [SBmin] 2.000
Safety factor for scuffing (flash-temp) [SB] 3.204
Integral temperature-criteria
Tooth mass temperature (°C) [theM-C] 98.78
theM-C = theoil + XS*0.70*theflaint [theflaint] 25.00
Integral scuffing temperature (°C) [theSint] 398.47
Running-in factor (well run in) [XE] 1.000
Contact ratio factor [Xeps] 0.282
Dynamic viscosity (mPa*s) [etaOil] 63.69
Averaged coefficient of friction [mym] 0.101
Geometry factor [XBE] 0.364
Meshing factor [XQ] 1.000
Tip relief factor [XCa] 1.261
Integral tooth flank temperature (°C) [theint] 132.31
Required safety [SSmin] 1.800
Safety factor for scuffing (intg. -temp.) [SSint] 2.699
Safety referring to transferred torque [SSL] 5.298
6. MEASUREMENTS FOR TOOTH THICKNESS 齿厚测量
------- GEAR 1 -------- GEAR 2 --
Tooth thickness deviation Own Input Own Input
Tooth thickness allowance (normal section) (mm)
[As. e/i] -0.067/-0.093 -0.062/-0.095
Number of teeth spanned [k] 3.000 6.000
Base tangent length (no backlash) (mm) [Wk] 11.845 25.272
Actual base tangent length (’span’) (mm) [Wk. e/i]
11.782/11.758 25.214/25.183
Diameter of contact point (mm) [dMWk. m] 26,843 69,973
Theoretical diameter of ball/pin (mm) [DM] 2.789 2.496
Eff. diameter of ball/pin (mm) [DMeff] 3.000 2.500
Theoretical dim. center to ball (mm) [MrK] 16.053 36.846
Actual dimension center to ball (mm) [MrK. e/i] 15.989/15.964
36.760/36.714
Diameter of contact point (mm) [dMMr. m] 27,596 70,166
Diametral measurement over two balls without clearance (mm)
[MdK] 32.107 73.644
Actual dimension over balls (mm) [MdK. e/i] 31.978/31.929
73.473/73.381
Theor. dimension over two pins