目 ?錄

摘要 7

Abstract: 8

第一章??緒論 9

§1.2 ?機(jī)械無(wú)級(jí)變速器的特征和應(yīng)用 10

§1.3機(jī)械無(wú)級(jí)變速器的選用和潤(rùn)滑密封 12

§1.4 本文的主要內(nèi)容及要求 14

第二章 摩擦無(wú)級(jí)變速器的機(jī)械特性加壓裝置和調(diào)速機(jī)構(gòu) 15

§2.1 ?機(jī)械特性 15

§2.2 ?調(diào)速操縱機(jī)構(gòu) 16

§2.3 ?加壓裝置

第三章 摩擦式無(wú)級(jí)變速器設(shè)計(jì)說(shuō)明和計(jì)算過(guò)程 18

§3.1 ?摩擦機(jī)械無(wú)級(jí)變速器的工作原理 18

§3.2 ?摩擦無(wú)級(jí)變速器的特點(diǎn) 19

§3.3 ?錐輪的設(shè)計(jì)與計(jì)算

§3.4 ?鋼環(huán)的設(shè)計(jì)與計(jì)算 23

1、鋼環(huán)尺寸和參數(shù)的確定 23

2、強(qiáng)度驗(yàn)算 25

§3.5 ?軸系的設(shè)計(jì) 26

§3.6 ?軸的結(jié)構(gòu)設(shè)計(jì) 27

第四章???主要零件的校核 29

§4.1 ．輸出，輸入軸的校核 29

§4.2 . 軸承的校核 30

總?結(jié) ? 31

致?謝 ? 32

參考文獻(xiàn)資料 33

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摩擦式機(jī)械無(wú)級(jí)變速器結(jié)構(gòu)設(shè)計(jì)

摘要

在某種控制的作用下，使機(jī)器的輸出軸轉(zhuǎn)速可在兩個(gè)極值范圍內(nèi)連續(xù)變化的無(wú)級(jí)變速器傳動(dòng)隨著機(jī)械、材質(zhì)及加工工藝的高速發(fā)展和其需求量日益增多而得到廣泛應(yīng)用和發(fā)展。無(wú)級(jí)變速器的主動(dòng)和從動(dòng)兩根軸通過(guò)傳遞轉(zhuǎn)矩的中間介質(zhì)（機(jī)械構(gòu)件、流體、電磁流等）把兩根軸直接或間接地聯(lián)系起來(lái)并傳遞動(dòng)力。當(dāng)對(duì)主、從動(dòng)軸的聯(lián)系關(guān)系進(jìn)行控制時(shí)，則兩軸間的傳動(dòng)比發(fā)生變化（在兩極值范圍內(nèi)連續(xù)而任意地變化）。用機(jī)械構(gòu)件作為中間介質(zhì)的為機(jī)械無(wú)級(jí)變速器，其包括摩擦式和脈動(dòng)式。無(wú)級(jí)變速器與定傳動(dòng)比傳動(dòng)及有級(jí)變速傳動(dòng)（它只有有限的幾種傳動(dòng)比）相比，其優(yōu)點(diǎn)是能夠根據(jù)工作需要在一定范圍內(nèi)連續(xù)變換速度，以適應(yīng)輸出轉(zhuǎn)速和外界負(fù)載變化的要求，摩擦式機(jī)械無(wú)級(jí)變速器依靠傳動(dòng)元件之間的摩擦進(jìn)行傳動(dòng)，鋼材材質(zhì)、加工工藝水平和潤(rùn)滑油料品質(zhì)等因素是摩擦式機(jī)械式無(wú)級(jí)變速器不斷發(fā)展的重要保證。本文通過(guò)查閱相關(guān)的諸多文獻(xiàn)和書籍手冊(cè)等進(jìn)行鋼環(huán)式無(wú)級(jí)變速器原理及其結(jié)構(gòu)、變速原理的傳動(dòng)結(jié)構(gòu)的實(shí)現(xiàn)的研究，并對(duì)摩擦式機(jī)械無(wú)級(jí)變速器進(jìn)行結(jié)構(gòu)設(shè)計(jì)，可直接作為設(shè)計(jì)文件或指導(dǎo)文件進(jìn)行生產(chǎn)加工。

關(guān)鍵詞：無(wú)級(jí)變速器；摩擦式；傳動(dòng)；潤(rùn)滑；

The structure design of CVT machine of friction type

Abstract:

Under the action of some kind of control?which can make the output of the machine spindle speed in two extreme CVT?within the framework of the continuous variation of the transmission with the high-speed development of machinery, materials and processing technology and its demand is growing and is widely used and CVT?transmission of the driving and driven by passing two shaft torque in the middle of the medium (mechanical components, fluid, electromagnetic flow, etc.), the two shaft linked directly or indirectly, and transfer power.When were related to the Lord, driven shaft to control, is the ratio between the two axis change (within the scope of the two extreme consecutive and arbitrarily change).With mechanical components as a medium for mechanical CVT, among which include friction and pulsation.CVT?and constant transmission ratio transmission and continuously variable transmission (it's only a limited number of transmission ratio), compared to its advantage is the ability to work according to the need to continuous transformation rate within a certain scope, to adapt the demand of output speed and external load, the friction type CVT?depend on mechanical transmission device for transmission, the friction between the steel material, processing technology level and the quality of lubricating oil is factors such as friction type mechanical stepless transmission the important guarantee of continuous development.This article through the consult literature and books, manuals, etc for the steel ring type stepless transmission principle and structure, the realization of the principle of variable speed drive structure research, and the friction type mechanical CVT?structure design, can be directly as a guide for design documents or files for production and processing.??

CVT;Friction type;Transmission;Lubrication;

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