【摘要】：三激波滾柱活齒行星傳動是活齒行星傳動的一種,它的結(jié)構(gòu)簡單,特別是其滾柱與傳動圈的組合形式具有明顯優(yōu)點(diǎn),改變了以往平行四邊形輸出機(jī)構(gòu)形式,縮短了傳動鏈,不用使用柔輪,避免了使用柔輪產(chǎn)生的一系列問題,而且還能夠減少傳遞過程的能量損失,改善傳動性能。在三激波滾柱活齒行星傳動變速器中,激波輪質(zhì)心幾乎在旋轉(zhuǎn)中心,自我平衡性能好,整個(gè)機(jī)構(gòu)有6種不同的安裝方式,滾柱數(shù)目具有2種選擇形式,經(jīng)過不同形式的組合,一共能獲得12種不同的變速效果,既能夠?qū)崿F(xiàn)增速運(yùn)動,也能夠?qū)崿F(xiàn)減速運(yùn)動,且傳動比范圍大(0.01-100),運(yùn)用范圍廣,在機(jī)械傳動中有很重要的意義,對三激波滾柱活齒行星傳動原理進(jìn)行研究及仿真,對減小設(shè)計(jì)成本,提高設(shè)計(jì)質(zhì)量、降低噪聲、提高承載能力：與延長使用壽命具有重要作用。本文主要在以下幾個(gè)方面進(jìn)行了探索： (1)證明了三激波滾柱活齒不同條件下12種傳動比；推導(dǎo)出了激波輪與內(nèi)齒圈的理論齒廓方程與實(shí)際齒廓方程,并用Matlab進(jìn)行了仿真；對傳動進(jìn)行了運(yùn)動學(xué)分析,求出了滾柱質(zhì)心位移、速度、加速度,及波幅A對它們的影響,并用Matlab進(jìn)行了仿真。 (2)用PRO/E進(jìn)行了三維建模與運(yùn)動學(xué)仿真,發(fā)現(xiàn)運(yùn)行良好無干涉,證明了前面推導(dǎo)的正確性。 (3)求出了內(nèi)齒圈齒廓上的不同位置的曲率半徑與壓力角,并分析了有關(guān)參數(shù)對曲率半徑與壓力角的影響,分析了內(nèi)齒圈齒廓失真的情形。 (4)結(jié)合Ansys13.0workbench與PRO/E,建立了三激波滾柱活齒行星傳動有限元模型,并進(jìn)行了模態(tài)分析,求得了三激波滾柱活齒行星傳動的固有頻率與振型。通過對云圖和動畫顯示進(jìn)行分析,滾柱與傳動圈的剛度對模態(tài)影響較大,通過對云圖和動畫顯示進(jìn)行分析,能發(fā)現(xiàn)最大的接觸變形出現(xiàn)在內(nèi)齒圈嚙合中段靠近齒頂處,設(shè)計(jì)時(shí)需注意其固有頻率與振型,這對提高設(shè)計(jì)產(chǎn)品質(zhì)量具有深遠(yuǎn)的意義。
[Abstract]:The three-shock roller movable tooth planetary transmission is one kind of movable tooth planetary transmission, its structure is simple, especially the combination form of roller and transmission ring has obvious advantages, which has changed the former parallelogram output mechanism form and shortened the transmission chain. Without the use of flexible wheel, a series of problems caused by the use of flexible wheel can be avoided, and the energy loss in transmission process can be reduced, and the transmission performance can be improved. In the three shock roller movable teeth planetary transmission, the center of mass of the exciting wave wheel is almost in the center of rotation, and the self-balancing performance is good. The whole mechanism has six different installation modes. A total of 12 different speed changes can be achieved, both in terms of acceleration and deceleration, with a wide range of transmission ratios (0.01-100), which is of great significance in mechanical transmission. The principle of three-shock roller movable tooth planetary transmission is studied and simulated, which plays an important role in reducing design cost, improving design quality, reducing noise, increasing bearing capacity and prolonging service life. This paper mainly explores the following aspects: (1) it is proved that there are 12 transmission ratios under different conditions of three shock roller movable teeth; The theoretical and practical tooth profile equations of shock wheel and inner gear ring are derived and simulated by Matlab. The kinematic analysis of the transmission is carried out, and the effects of the displacement, velocity, acceleration and amplitude A of the roller on them are obtained, and the simulation is carried out by Matlab. (2) 3D modeling and kinematics simulation with PRO/E are carried out, and it is found that the system works well without interference, which proves the correctness of the previous derivation. (3) the curvature radius and pressure angle of different positions on the inner gear profile are obtained, the influence of the parameters on the curvature radius and pressure angle is analyzed, and the distortion of the inner gear tooth profile is analyzed. (4) combined with Ansys13.0workbench and PRO/E, the finite element model of three shock wave roller movable tooth planetary transmission is established, and the modal analysis is carried out, and the natural frequency and mode shape of the three shock wave roller movable tooth planetary transmission are obtained. By analyzing the cloud picture and animation display, the stiffness of roller and transmission ring has a great influence on the modal. By analyzing the cloud picture and animation display, it can be found that the maximum contact deformation occurs in the middle section of the inner gear ring meshing near the top of the tooth. It is necessary to pay attention to its natural frequency and mode shape in design, which is of great significance to improve the quality of design products.
【學(xué)位授予單位】：湖南農(nóng)業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TH132.425

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