同平面軸等直徑鉤桿空間螺旋線齒輪設(shè)計理論研究
發(fā)布時間：2019-02-17 09:56
【摘要】：微機(jī)電系統(tǒng)（MEMS）具有結(jié)構(gòu)微型化、功能多樣化、智能化、能耗低、靈敏度和工作效率高等優(yōu)點。微小型/微型機(jī)電產(chǎn)品的最主要特征是體積小、重量輕，以小動力的運動傳遞或者分度運動為主，以動力傳遞為主的常規(guī)傳動機(jī)構(gòu)通常不再適用。因此，微小/微傳動機(jī)構(gòu)及驅(qū)動裝置的工作原理、性能特征和設(shè)計制造的創(chuàng)新研究已逐漸成為機(jī)械學(xué)科前沿研究領(lǐng)域的研究熱點和重要方向之一。 本文首先針對國內(nèi)外微小/微傳動機(jī)構(gòu)及驅(qū)動裝置的研究成果進(jìn)行了系統(tǒng)性的闡述與分析，然后在前期用于正交軸傳動的空間曲線嚙合輪傳動機(jī)構(gòu)的研究基礎(chǔ)上，開展了同平面軸等直徑鉤桿空間螺旋線齒輪設(shè)計理論研究。首先，建立了具有普適性的用于同平面內(nèi)任意角度交叉軸和平行軸傳動的空間曲線嚙合理論。在此基礎(chǔ)上，研究解決等直徑鉤桿空間螺旋線齒輪傳動機(jī)構(gòu)工業(yè)化應(yīng)用的關(guān)鍵問題，從而為構(gòu)建獨立而完整的同平面軸等直徑鉤桿空間螺旋線齒輪設(shè)計理論奠定基礎(chǔ)。大量理論分析與實驗研究表明，本文研究的同平面軸等直徑鉤桿空間螺旋線齒輪具有工業(yè)化應(yīng)用的指導(dǎo)性與可行性。 總體來說，本文具體開展了以下幾個方面的研究工作： 1.建立了適用于任意角度交叉軸和平行軸傳動的空間曲線嚙合方程。首先建立了空間曲線嚙合坐標(biāo)系，分析空間曲線嚙合的約束條件，，推導(dǎo)具備普適性的軸線共面的空間曲線嚙合方程。根據(jù)主從動鉤桿空間矢量關(guān)系，得到等直徑鉤桿空間螺旋線齒輪主從動鉤桿的接觸線與中心線方程。 2.在軸線共面的空間曲線嚙合方程的基礎(chǔ)上，推導(dǎo)等直徑鉤桿空間螺旋線齒輪的重合度設(shè)計公式。分析影響等直徑鉤桿空間螺旋線齒輪重合度的各項參數(shù)，研究重合度的幾種設(shè)計方法。在重合度設(shè)計公式及其影響因素基礎(chǔ)上，研究主動鉤桿的最少齒數(shù)，并針對傳動連續(xù)性和平穩(wěn)性進(jìn)行運動學(xué)仿真分析和實驗研究，驗證重合度設(shè)計公式的正確性。 3.研究等直徑鉤桿空間螺旋線齒輪參數(shù)標(biāo)準(zhǔn)化設(shè)計。分析等直徑鉤桿空間螺旋線齒輪主從動輪的各項齒形結(jié)構(gòu)參數(shù)，包括齒數(shù)、螺旋升角、螺距、鉤桿直徑、齒高等，確定主從動輪坐標(biāo)系中心距，確定等直徑鉤桿空間螺旋線齒輪的基本設(shè)計參數(shù)和基本設(shè)計尺寸。為避免主從動輪之間的干涉，修正主從動鉤桿中心線和接觸線參數(shù)取值范圍。 4.制定等直徑鉤桿空間螺旋線齒輪的彎曲疲勞無限壽命設(shè)計準(zhǔn)則。分別針對等直徑鉤桿空間螺旋線齒輪嚙合傳動的主動鉤桿和從動鉤桿進(jìn)行受力分析，結(jié)合ANSYS有限元數(shù)值模擬仿真，推導(dǎo)主動鉤桿根部最大名義應(yīng)力解析式，擬合具有普適性的主動鉤桿根部理論應(yīng)力集中系數(shù)的函數(shù)表達(dá)式。根據(jù)疲勞強(qiáng)度理論，結(jié)合安全系數(shù)法，制定等直徑鉤桿空間螺旋線齒輪的彎曲疲勞無限壽命設(shè)計準(zhǔn)則。 5.研究等直徑鉤桿空間螺旋線齒輪主動鉤桿結(jié)構(gòu)優(yōu)化設(shè)計。分析主動鉤桿各項螺旋參數(shù)與主動鉤桿應(yīng)力和變形之間的變化規(guī)律，確定包括螺旋升角在內(nèi)的各項設(shè)計參數(shù)的最優(yōu)取值范圍，提高等直徑鉤桿空間螺旋線齒輪傳動副的承載能力和抗變形能力。
[Abstract]:Micro-electro-mechanical system (MEMS) has the advantages of miniaturization of structure, diversified functions, intelligence, low energy consumption, high sensitivity and working efficiency. The main characteristics of the micro/ micro mechanical and electrical products are small volume, light weight, small power transmission or division movement, and the conventional transmission mechanism with power transmission is no longer applicable. Therefore, the working principle, performance characteristics and design and manufacture of the micro/ micro transmission mechanism and the driving device have gradually become one of the hot and important research fields in the research field of mechanical discipline. In this paper, a systematic exposition and analysis of the research results of the micro/ micro-drive mechanism and the driving device at home and abroad, and then the research foundation of the space curve engaging wheel transmission mechanism for the orthogonal axis transmission in the early stage On the other hand, the theoretical research on the design of the helical gear with the same diameter as the plane shaft and the like is carried out. First of all, it is reasonable to establish a universal space curve for arbitrary angle cross-axis and parallel-axis transmission in the same plane. On the basis of this, the key problems of the industrial application of the large-diameter hook-and-rod space helical gear transmission mechanism have been solved, so as to lay the foundation for the construction of the theory of the design of the helical gear of the large-diameter hook-rod space, such as the independent and complete same-plane axis. In this paper, a large number of theoretical analysis and experimental studies have shown that the same-diameter hook-and-rod space spiral gear, such as the same plane axis, has the guidance and feasibility of industrial application. In general, the article specifically carries out the research on the following aspects Study: 1. A space curve suitable for any angle cross-axis and parallel-axis drive is established The linear meshing equation is established. First, a space curve meshing coordinate system is established, the constraint conditions of the meshing of the spatial curves are analyzed, and the space curve with the universal axis co-plane is derived. according to the relation of the space vector of the master-slave dynamic hook rod, the contact line of the master-slave movable hook rod of the equal-diameter hook rod space spiral gear is obtained, On the basis of the space curve meshing equation of the axial co-surface, the space spiral gear of the equal-diameter hook and rod is derived. The coincidence degree design formula is used to analyze the parameters of the coincidence degree of the diameter hook and rod space spiral gear, and the degree of coincidence is studied. In this paper, the minimum number of teeth of the active hook rod is studied on the basis of the design formula of the coincidence degree and the influencing factors, and the kinematic simulation analysis and the experimental study are carried out for the transmission continuity and the stability, and the coincidence degree setting is verified. Correctness of the formula. 3. Diameter hook-and-rod space helix, such as study The gear parameter standardized design. The tooth profile structure parameters of the primary and secondary driven wheel of the diameter hook and rod space spiral gear are analyzed, including the number of teeth, the helix angle, the pitch, the diameter of the hook rod, the height of the teeth, and the like. The basic design of the equal-diameter hook-and-rod space spiral gear based on the center distance of the driven wheel coordinate system In order to avoid the interference between the driven wheel and the driven wheel, the center line of the master-slave moving hook rod and the center line of the master-slave moving hook rod are corrected to avoid the interference between the master and slave wheel. The value range of the contact line parameter. 4. Make the curve of the equal-diameter hook rod space spiral gear The design criterion of the infinite life of the bending fatigue is given. The active hook rod and the driven hook rod for meshing transmission of the equal-diameter hook rod space spiral gear are respectively subjected to stress analysis, and the active hook rod is derived by combining the finite element numerical simulation and simulation of the ANSYS. The maximum nominal stress analytic formula of the root and the root theory of the active hook rod with universality should be fitted. The function expression of the force concentration coefficient. According to the fatigue strength theory and the safety factor method, the curve of the equal-diameter hook rod space spiral gear is established. Design criterion of the infinite life of the bending fatigue. 5. The space spiral of the diameter hook and rod, such as the study, etc. The optimum design of the structure of the active hook rod of the wire gear is analyzed. The variation of the spiral parameters of the active hook and the stress and the deformation of the active hook rod is analyzed, and the optimum range of the design parameters including the screw-lift angle is determined, and the transmission of the helical gear of the equal-diameter hook rod space is improved.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2013
【分類號】：TH132.422
本文編號：2425044
[Abstract]:Micro-electro-mechanical system (MEMS) has the advantages of miniaturization of structure, diversified functions, intelligence, low energy consumption, high sensitivity and working efficiency. The main characteristics of the micro/ micro mechanical and electrical products are small volume, light weight, small power transmission or division movement, and the conventional transmission mechanism with power transmission is no longer applicable. Therefore, the working principle, performance characteristics and design and manufacture of the micro/ micro transmission mechanism and the driving device have gradually become one of the hot and important research fields in the research field of mechanical discipline. In this paper, a systematic exposition and analysis of the research results of the micro/ micro-drive mechanism and the driving device at home and abroad, and then the research foundation of the space curve engaging wheel transmission mechanism for the orthogonal axis transmission in the early stage On the other hand, the theoretical research on the design of the helical gear with the same diameter as the plane shaft and the like is carried out. First of all, it is reasonable to establish a universal space curve for arbitrary angle cross-axis and parallel-axis transmission in the same plane. On the basis of this, the key problems of the industrial application of the large-diameter hook-and-rod space helical gear transmission mechanism have been solved, so as to lay the foundation for the construction of the theory of the design of the helical gear of the large-diameter hook-rod space, such as the independent and complete same-plane axis. In this paper, a large number of theoretical analysis and experimental studies have shown that the same-diameter hook-and-rod space spiral gear, such as the same plane axis, has the guidance and feasibility of industrial application. In general, the article specifically carries out the research on the following aspects Study: 1. A space curve suitable for any angle cross-axis and parallel-axis drive is established The linear meshing equation is established. First, a space curve meshing coordinate system is established, the constraint conditions of the meshing of the spatial curves are analyzed, and the space curve with the universal axis co-plane is derived. according to the relation of the space vector of the master-slave dynamic hook rod, the contact line of the master-slave movable hook rod of the equal-diameter hook rod space spiral gear is obtained, On the basis of the space curve meshing equation of the axial co-surface, the space spiral gear of the equal-diameter hook and rod is derived. The coincidence degree design formula is used to analyze the parameters of the coincidence degree of the diameter hook and rod space spiral gear, and the degree of coincidence is studied. In this paper, the minimum number of teeth of the active hook rod is studied on the basis of the design formula of the coincidence degree and the influencing factors, and the kinematic simulation analysis and the experimental study are carried out for the transmission continuity and the stability, and the coincidence degree setting is verified. Correctness of the formula. 3. Diameter hook-and-rod space helix, such as study The gear parameter standardized design. The tooth profile structure parameters of the primary and secondary driven wheel of the diameter hook and rod space spiral gear are analyzed, including the number of teeth, the helix angle, the pitch, the diameter of the hook rod, the height of the teeth, and the like. The basic design of the equal-diameter hook-and-rod space spiral gear based on the center distance of the driven wheel coordinate system In order to avoid the interference between the driven wheel and the driven wheel, the center line of the master-slave moving hook rod and the center line of the master-slave moving hook rod are corrected to avoid the interference between the master and slave wheel. The value range of the contact line parameter. 4. Make the curve of the equal-diameter hook rod space spiral gear The design criterion of the infinite life of the bending fatigue is given. The active hook rod and the driven hook rod for meshing transmission of the equal-diameter hook rod space spiral gear are respectively subjected to stress analysis, and the active hook rod is derived by combining the finite element numerical simulation and simulation of the ANSYS. The maximum nominal stress analytic formula of the root and the root theory of the active hook rod with universality should be fitted. The function expression of the force concentration coefficient. According to the fatigue strength theory and the safety factor method, the curve of the equal-diameter hook rod space spiral gear is established. Design criterion of the infinite life of the bending fatigue. 5. The space spiral of the diameter hook and rod, such as the study, etc. The optimum design of the structure of the active hook rod of the wire gear is analyzed. The variation of the spiral parameters of the active hook and the stress and the deformation of the active hook rod is analyzed, and the optimum range of the design parameters including the screw-lift angle is determined, and the transmission of the helical gear of the equal-diameter hook rod space is improved.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2013
【分類號】：TH132.422
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