【摘要】：齒輪是制造裝備業(yè)和國防工業(yè)中極其重要的關(guān)鍵基礎(chǔ)件,被認(rèn)為是工業(yè)的象征�？茖W(xué)技術(shù)的發(fā)展對(duì)齒輪傳動(dòng)的性能如效率、可靠性、傳動(dòng)精度、承載能力等提出了越來越高的要求。開展齒輪嚙合原理研究,是提高齒輪傳動(dòng)性能的理論基礎(chǔ)和技術(shù)支撐。共軛曲線原理以空間光滑曲線為研究對(duì)象,研究了曲線的嚙合特性,為新型齒輪傳動(dòng)研究提供了理論基礎(chǔ)。共軛曲線齒輪傳動(dòng)是在共軛曲線原理的基礎(chǔ)上提出的。共軛曲線齒輪的嚙合齒面繼承了共軛曲線的嚙合特性,凹凸點(diǎn)接觸的共軛曲線齒輪傳動(dòng)具有承載能力大、潤滑效果好及使用壽命長等優(yōu)點(diǎn)。由于共軛曲線齒輪傳動(dòng)中小齒輪的齒數(shù)可以設(shè)計(jì)的很小,如3~6個(gè)齒,模數(shù)可以設(shè)計(jì)的很大,因此其結(jié)構(gòu)更加緊湊,是一種體積小重量輕的重載傳動(dòng)形式,在礦山機(jī)械、運(yùn)輸機(jī)械等重載領(lǐng)域及在航空航天、船舶航海等對(duì)重量和體積有限制的領(lǐng)域具有廣泛的應(yīng)用前景。本文研究了共軛曲線齒輪傳動(dòng)的設(shè)計(jì)理論,系統(tǒng)地研究了嚙合性能與齒形特性、切齒方法與測(cè)量方法,進(jìn)行了樣機(jī)試制并開展了傳動(dòng)性能試驗(yàn)。論文的主要工作可概括如下:(1)開展了共軛曲線齒輪傳動(dòng)的嚙合理論研究:推導(dǎo)了共軛曲線的嚙合方程、嚙合線方程等;提出了等距包絡(luò)法構(gòu)建共軛曲線齒輪嚙合管嚙合齒面的方法,推導(dǎo)了等距線方程、包絡(luò)面方程等;提出了法面齒廓作螺旋運(yùn)動(dòng)構(gòu)建共軛曲線齒輪嚙合齒面的一般方法,推導(dǎo)了嚙合齒面方程;研究了齒輪齒條法獲得的嚙合齒面與理想嚙合齒面之間的偏差,推導(dǎo)了齒輪齒條法的嚙合方程、嚙合齒面方程,給出了嚙合齒面與理想嚙合齒面偏差的計(jì)算方法。(2)開展了共軛曲線齒輪的齒形設(shè)計(jì)和精確實(shí)體建模方法研究:提出了共軛曲線齒輪齒形的設(shè)計(jì)方法,確定了共軛曲線齒輪基本齒廓的齒形參數(shù)和設(shè)計(jì)原則,設(shè)計(jì)了三點(diǎn)接觸和兩點(diǎn)接觸共軛曲線齒輪的基本齒廓;根據(jù)共軛曲線齒輪的齒面方程提出了共軛曲線齒輪副精確實(shí)體模型的構(gòu)建方法,建立了五種不同法面齒廓的共軛曲線齒輪副的實(shí)體模型。(3)開展了共軛曲線齒輪傳動(dòng)的接觸有限元分析:對(duì)五種不同法面齒廓的共軛曲線齒輪副進(jìn)行了有限元分析,計(jì)算了單點(diǎn)接觸、三點(diǎn)接觸、兩點(diǎn)接觸的共軛曲線齒輪傳動(dòng)的接觸應(yīng)力、等效應(yīng)力和彎曲應(yīng)力等,研究了齒形參數(shù)對(duì)齒輪傳動(dòng)強(qiáng)度的影響。(4)開展了共軛曲線齒輪的切齒方法和測(cè)量研究:提出了共軛曲線齒輪切齒刀具的設(shè)計(jì)方法,根據(jù)共軛曲線齒輪基本齒廓和滾刀參數(shù)設(shè)計(jì)原則設(shè)計(jì)了分別加工凸、凹齒齒廓的滾刀;提出了共軛曲線齒輪滾削加工工藝,進(jìn)行了數(shù)控滾削加工的各項(xiàng)參數(shù)設(shè)定和編程,研究其關(guān)鍵技術(shù)并進(jìn)行滾削加工試驗(yàn),完成多套齒輪樣機(jī)試制,開展了共軛曲線齒輪傳動(dòng)的現(xiàn)場(chǎng)檢測(cè)原理和方法研究。(5)開展了共軛曲線齒輪性能臺(tái)架試驗(yàn)研究并取得了工程應(yīng)用:確定了試驗(yàn)臺(tái)的測(cè)試原理和連接方案,設(shè)計(jì)了試驗(yàn)臺(tái)的工裝、支架連接裝置;完成了試驗(yàn)臺(tái)的安裝調(diào)試;設(shè)計(jì)并制造一臺(tái)共軛曲線齒輪傳動(dòng)齒輪箱樣機(jī);開展了具有相同中心距和傳動(dòng)比的試驗(yàn)樣機(jī)、國產(chǎn)漸開線硬齒面齒輪箱、FLENDER漸開線硬齒面齒輪箱的性能測(cè)試試驗(yàn),包括效率試驗(yàn)和承載試驗(yàn);對(duì)試驗(yàn)數(shù)據(jù)進(jìn)行了分析;研制了兩臺(tái)共軛曲線齒輪齒輪箱,分別應(yīng)用于某公司車間的天車和運(yùn)渣車上。
[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.
【學(xué)位授予單位】：重慶大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2015
【分類號(hào)】：TH132.41

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