共轭曲线齿轮设计理论及切齿方法研究
发布时间：2018-07-31 09:48
【摘要】：齿轮是制造装备业和国防工业中极其重要的关键基础件,被认为是工业的象征。科学技术的发展对齿轮传动的性能如效率、可靠性、传动精度、承载能力等提出了越来越高的要求。开展齿轮啮合原理研究,是提高齿轮传动性能的理论基础和技术支撑。共轭曲线原理以空间光滑曲线为研究对象,研究了曲线的啮合特性,为新型齿轮传动研究提供了理论基础。共轭曲线齿轮传动是在共轭曲线原理的基础上提出的。共轭曲线齿轮的啮合齿面继承了共轭曲线的啮合特性,凹凸点接触的共轭曲线齿轮传动具有承载能力大、润滑效果好及使用寿命长等优点。由于共轭曲线齿轮传动中小齿轮的齿数可以设计的很小,如3~6个齿,模数可以设计的很大,因此其结构更加紧凑,是一种体积小重量轻的重载传动形式,在矿山机械、运输机械等重载领域及在航空航天、船舶航海等对重量和体积有限制的领域具有广泛的应用前景。本文研究了共轭曲线齿轮传动的设计理论,系统地研究了啮合性能与齿形特性、切齿方法与测量方法,进行了样机试制并开展了传动性能试验。论文的主要工作可概括如下:(1)开展了共轭曲线齿轮传动的啮合理论研究:推导了共轭曲线的啮合方程、啮合线方程等;提出了等距包络法构建共轭曲线齿轮啮合管啮合齿面的方法,推导了等距线方程、包络面方程等;提出了法面齿廓作螺旋运动构建共轭曲线齿轮啮合齿面的一般方法,推导了啮合齿面方程;研究了齿轮齿条法获得的啮合齿面与理想啮合齿面之间的偏差,推导了齿轮齿条法的啮合方程、啮合齿面方程,给出了啮合齿面与理想啮合齿面偏差的计算方法。(2)开展了共轭曲线齿轮的齿形设计和精确实体建模方法研究:提出了共轭曲线齿轮齿形的设计方法,确定了共轭曲线齿轮基本齿廓的齿形参数和设计原则,设计了三点接触和两点接触共轭曲线齿轮的基本齿廓;根据共轭曲线齿轮的齿面方程提出了共轭曲线齿轮副精确实体模型的构建方法,建立了五种不同法面齿廓的共轭曲线齿轮副的实体模型。(3)开展了共轭曲线齿轮传动的接触有限元分析:对五种不同法面齿廓的共轭曲线齿轮副进行了有限元分析,计算了单点接触、三点接触、两点接触的共轭曲线齿轮传动的接触应力、等效应力和弯曲应力等,研究了齿形参数对齿轮传动强度的影响。(4)开展了共轭曲线齿轮的切齿方法和测量研究:提出了共轭曲线齿轮切齿刀具的设计方法,根据共轭曲线齿轮基本齿廓和滚刀参数设计原则设计了分别加工凸、凹齿齿廓的滚刀;提出了共轭曲线齿轮滚削加工工艺,进行了数控滚削加工的各项参数设定和编程,研究其关键技术并进行滚削加工试验,完成多套齿轮样机试制,开展了共轭曲线齿轮传动的现场检测原理和方法研究。(5)开展了共轭曲线齿轮性能台架试验研究并取得了工程应用:确定了试验台的测试原理和连接方案,设计了试验台的工装、支架连接装置;完成了试验台的安装调试;设计并制造一台共轭曲线齿轮传动齿轮箱样机;开展了具有相同中心距和传动比的试验样机、国产渐开线硬齿面齿轮箱、FLENDER渐开线硬齿面齿轮箱的性能测试试验,包括效率试验和承载试验;对试验数据进行了分析;研制了两台共轭曲线齿轮齿轮箱,分别应用于某公司车间的天车和运渣车上。
[Abstract]:Gear is the most important key element in the manufacturing equipment industry and the national defense industry. It is considered as the symbol of industry. The development of science and technology demands more and more high requirements for the gear transmission performance such as efficiency, reliability, transmission precision and carrying capacity. The study of gear meshing theory is the theoretical basis for improving the gear transmission performance. The conjugate curve principle takes the space smooth curve as the research object, studies the meshing characteristics of the curve, provides the theoretical basis for the study of the new type gear transmission. The conjugate curve gear transmission is based on the principle of the conjugate curve. The meshing tooth surface of the conjugate curve gear inherits the meshing characteristic of the conjugate curve and the concave and convex. The conjugate curve gear transmission with point contact has the advantages of large bearing capacity, good lubrication effect and long service life. As the number of teeth of small and medium gear transmission with conjugate curve gear can be designed very small, such as 3~6 teeth, the modulus can be designed very much, so its structure is more compact, and it is a kind of heavy load transmission form with small weight and light weight. In this paper, the design theory of conjugate curve gear transmission is studied in this paper. The meshing performance and tooth profile, the tooth cutting method and the measurement method are systematically studied, and the prototype is tested and carried out. The main work of this paper can be summarized as follows: (1) the meshing theory of conjugate curve gear transmission is studied. The meshing equation of conjugate curve and the meshing line equation are derived. The method of constructing the meshing tooth surface of the conjugate curve gear meshing tube is put forward, the equation of the equidistance line and the equation of the envelope surface are derived, and the equation of the contour line and the envelope surface are derived. The general method of constructing the meshing tooth surface of the conjugate curve gear is constructed by the spiral motion of the normal tooth profile, and the equation of the meshing tooth surface is derived. The deviation between the meshing tooth surface and the ideal meshing tooth surface obtained by the gear rack method is studied. The meshing equation of the gear rack method, the square path of the meshing tooth surface and the deviation of the meshing tooth surface and the ideal meshing tooth surface are given. (2) the tooth shape design and accurate solid modeling method of conjugate curve gear are carried out. The design method of conjugate curve gear tooth profile is put forward, the tooth profile parameters and design principles of the basic tooth profile of conjugate curve gear are determined, and the basic tooth profile of three point contact and two point contact conjugate curve gear is designed. The tooth surface equation of the line gear has proposed the construction method of the exact solid model of the conjugate curve gear pair, and established the solid model of five kinds of conjugate curve gear pairs with different normal tooth profile. (3) the contact finite element analysis of the conjugate curve gear transmission is carried out. The finite element analysis of the conjugate curve gear pair of five different normal surface profile is carried out. The contact stress, equivalent stress and bending stress of the conjugate curve gear transmission with single point contact, three point contact and two point contact are calculated. The influence of tooth shape parameters on the gear transmission strength is studied. (4) the tooth cutting method and measurement of conjugate curve gear are carried out. The design method of conjugate curve gear cutting tool is put forward. The principle design principle of the basic tooth profile and hob parameter design of the yoke gear is designed to process the hob of convex and concave tooth profile respectively. The hobbing process of the conjugate curve gear is put forward. The parameters setting and programming of the CNC hobbing are carried out, the key technology is studied and the rolling experiment is carried out. Study on the principle and method of field detection of the conjugated curve gear transmission. (5) the test research of the conjugate curve gear performance is carried out and the engineering application has been obtained. The test principle and connection scheme of the test bed are determined, the tooling and support connection device of the test rig are designed, the installation and debugging of the test rig are completed, and a conjugate curve is designed and manufactured. The prototype of the line gear transmission gear box, the test prototype with the same center distance and the transmission ratio, the performance test of the home-made involute hard tooth gear box and the FLENDER involute hard tooth gear box, including the efficiency test and the bearing test, analysis of the test data, and the development of two conjugate curve gear boxes, respectively. In a company's workshop on the car and the slag truck.
【学位授予单位】：重庆大学
【学位级别】：博士
【学位授予年份】：2015
【分类号】：TH132.41
本文编号：2155204
[Abstract]:Gear is the most important key element in the manufacturing equipment industry and the national defense industry. It is considered as the symbol of industry. The development of science and technology demands more and more high requirements for the gear transmission performance such as efficiency, reliability, transmission precision and carrying capacity. The study of gear meshing theory is the theoretical basis for improving the gear transmission performance. The conjugate curve principle takes the space smooth curve as the research object, studies the meshing characteristics of the curve, provides the theoretical basis for the study of the new type gear transmission. The conjugate curve gear transmission is based on the principle of the conjugate curve. The meshing tooth surface of the conjugate curve gear inherits the meshing characteristic of the conjugate curve and the concave and convex. The conjugate curve gear transmission with point contact has the advantages of large bearing capacity, good lubrication effect and long service life. As the number of teeth of small and medium gear transmission with conjugate curve gear can be designed very small, such as 3~6 teeth, the modulus can be designed very much, so its structure is more compact, and it is a kind of heavy load transmission form with small weight and light weight. In this paper, the design theory of conjugate curve gear transmission is studied in this paper. The meshing performance and tooth profile, the tooth cutting method and the measurement method are systematically studied, and the prototype is tested and carried out. The main work of this paper can be summarized as follows: (1) the meshing theory of conjugate curve gear transmission is studied. The meshing equation of conjugate curve and the meshing line equation are derived. The method of constructing the meshing tooth surface of the conjugate curve gear meshing tube is put forward, the equation of the equidistance line and the equation of the envelope surface are derived, and the equation of the contour line and the envelope surface are derived. The general method of constructing the meshing tooth surface of the conjugate curve gear is constructed by the spiral motion of the normal tooth profile, and the equation of the meshing tooth surface is derived. The deviation between the meshing tooth surface and the ideal meshing tooth surface obtained by the gear rack method is studied. The meshing equation of the gear rack method, the square path of the meshing tooth surface and the deviation of the meshing tooth surface and the ideal meshing tooth surface are given. (2) the tooth shape design and accurate solid modeling method of conjugate curve gear are carried out. The design method of conjugate curve gear tooth profile is put forward, the tooth profile parameters and design principles of the basic tooth profile of conjugate curve gear are determined, and the basic tooth profile of three point contact and two point contact conjugate curve gear is designed. The tooth surface equation of the line gear has proposed the construction method of the exact solid model of the conjugate curve gear pair, and established the solid model of five kinds of conjugate curve gear pairs with different normal tooth profile. (3) the contact finite element analysis of the conjugate curve gear transmission is carried out. The finite element analysis of the conjugate curve gear pair of five different normal surface profile is carried out. The contact stress, equivalent stress and bending stress of the conjugate curve gear transmission with single point contact, three point contact and two point contact are calculated. The influence of tooth shape parameters on the gear transmission strength is studied. (4) the tooth cutting method and measurement of conjugate curve gear are carried out. The design method of conjugate curve gear cutting tool is put forward. The principle design principle of the basic tooth profile and hob parameter design of the yoke gear is designed to process the hob of convex and concave tooth profile respectively. The hobbing process of the conjugate curve gear is put forward. The parameters setting and programming of the CNC hobbing are carried out, the key technology is studied and the rolling experiment is carried out. Study on the principle and method of field detection of the conjugated curve gear transmission. (5) the test research of the conjugate curve gear performance is carried out and the engineering application has been obtained. The test principle and connection scheme of the test bed are determined, the tooling and support connection device of the test rig are designed, the installation and debugging of the test rig are completed, and a conjugate curve is designed and manufactured. The prototype of the line gear transmission gear box, the test prototype with the same center distance and the transmission ratio, the performance test of the home-made involute hard tooth gear box and the FLENDER involute hard tooth gear box, including the efficiency test and the bearing test, analysis of the test data, and the development of two conjugate curve gear boxes, respectively. In a company's workshop on the car and the slag truck.
【学位授予单位】：重庆大学
【学位级别】：博士
【学位授予年份】：2015
【分类号】：TH132.41
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