准端面双圆弧齿轮啮合特性对中心距误差的敏感性研究

发布时间：2018-01-12 08:07

本文关键词：准端面双圆弧齿轮啮合特性对中心距误差的敏感性研究　出处：《太原理工大学》2012年硕士论文　论文类型：学位论文

【摘要】：圆弧齿轮承载力高、寿命长、加工方便,在石油、冶金、矿山等行业应用广泛。然而,圆弧齿轮的传动性能对中心距误差的敏感性较大,中心距误差较大时往往会造成圆弧齿轮过早的失效,因此必须严格控制圆弧齿轮的制造和装配精度。准端面双圆弧齿轮从基本齿形着手,通过传统加工方法来改善圆弧齿轮轮齿的几何形貌,使得其对中心距误差的敏感性降低。本文主要对准端面双圆弧齿轮对中心距误差的敏感性进行分析,从啮合点位置的变化、接触强度、弯曲强度来研究不同中心距误差下准端面双圆弧齿轮的啮合规律,并与法面双圆弧齿轮进行对比。根据圆弧齿轮空间啮合原理,分析了不同中心距误差引起圆弧齿轮啮合点位置的变化与压力角的关系。以压力角的变化来表征中心距误差下啮合点位置的变化,并综合齿轮螺旋角的影响,得到不同中心距误差下、不同βo的滚刀加工出来的不同β的准端面双圆弧齿轮压力角的规律及其数值。通过圆弧齿轮的啮合接触图谱,从齿廓干涉及危险性出发,研究并得出不同中心距误差下圆弧齿轮端面齿廓与啮合圆的关系。利用Pro/E软件建立了双圆弧齿轮的参数化模型,通过调节参数得到各种法面、端面、准端面双圆弧齿轮,并对模型做了简化和参数化装配。基于ANSYS面面接触有限元分析,对双圆弧齿轮进行了静态接触有限元分析,得到不同中心距误差下,法面、端面、准端面双圆弧齿轮的接触应力和弯曲应力。从齿面接触相对主曲率半径和齿面曲率半径的角度出发,分析了准端面双圆弧齿轮的接触应力和弯曲应力对中心距误差的敏感性,其变化规律与有限元分析结果一致,因此准端面双圆弧齿轮在降低中心距误差敏感性具有优越型。并给出准端面双圆弧齿轮βo和β的搭配规律。
[Abstract]:The circular arc gear has high bearing capacity, long service life, convenient processing, in the oil, metallurgy, mining and other industries are widely used. However, the transmission performance of the circular arc gear center distance error greater sensitivity to center distance error is often caused by the failure of circular arc gear premature, it is necessary to strictly control the arc gear manufacture and assembly accuracy. Quasi circular arc gear based on basic tooth shape, to improve the geometric shape of circular arc gear tooth by the traditional processing methods, the sensitivity of the center distance error is reduced.
This paper mainly focuses on the sensitivity analysis of the end face double circular arc gear to the center distance error. From the change of the meshing point location, the contact strength and the bending strength, the meshing law of the double side circular arc gear with different center distance error is studied, and it is compared with the double circular arc gear with normal face.
According to the space circular arc gear meshing principle, analyzes the different center distance error caused by changes of pressure and arc gear meshing point angle. To change the pressure angle to characterize the change of meshing point center distance error, and the comprehensive influence of helical gear, get different center distance error, quasi transverse double law circular arc gear hob processing pressure of different beta beta o different angle and its value.
Based on the meshing contact diagram of circular arc gear, from the interference and danger of tooth profile, the relationship between the tooth profile of circular arc gear and the meshing circle under different center distance errors is studied.
The parameterized model of double circular arc gear is established by using Pro/E software, and all kinds of normal face, end face and double end circular arc gear are obtained by adjusting parameters, and the model is simplified and parameterized.
Based on the ANSYS surface contact finite element analysis, the static contact finite element analysis of the double circular arc gear is carried out, and the contact stress and bending stress of the double face arc gear with different center distance errors are obtained.
From the tooth surface relative principal curvature radius of curvature radius and angle, analysis of quasi circular arc gear contact stress and bending stress on the center distance error sensitivity, with the changes of the finite element analysis results are consistent, so the quasi circular arc gear in the lower center distance error has superior sensitivity type. Collocation law and some quasi circular arc gear beta O and beta.

【学位授予单位】：太原理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH132.41

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