540 352履帶拖拉機(jī)－滑動(dòng)齒輪變速箱設(shè)計(jì)（有cad圖+中英文翻譯）

540 352履帶拖拉機(jī)－滑動(dòng)齒輪變速箱設(shè)計(jì)（有cad圖+中英文翻譯）,540,352履帶拖拉機(jī)－滑動(dòng)齒輪變速箱設(shè)計(jì)（有cad圖+中英文翻譯）,履帶,拖拉機(jī),滑動(dòng),齒輪,變速箱,設(shè)計(jì),cad,中英文,翻譯 摘要 履帶式拖拉機(jī)行駛速度很低，每次切斷動(dòng)力換擋都會(huì)導(dǎo)致拖拉機(jī)停車。所以變速器采用直齒滑動(dòng)齒輪換擋，成本低廉，工作可靠，維修方便。由于拖拉機(jī)工作環(huán)境變化較大，要求其變速器傳動(dòng)比范圍也較大，可采用兩對(duì)齒輪相嚙合的三軸式變速器，有利于擴(kuò)大傳動(dòng)比。同時(shí)，拖拉機(jī)要求有動(dòng)力輸出裝置，可采用中間軸上置兼做動(dòng)力輸出軸，輸入軸和輸出軸下置。這樣可以省去一根軸，在輸入軸常嚙合齒輪下側(cè)布置一常嚙合齒輪用作濺油齒輪。在拖拉機(jī)停車工作時(shí)濺油潤(rùn)滑。操縱機(jī)構(gòu)采用傳統(tǒng)的手動(dòng)直接換擋，省去長(zhǎng)距離換擋機(jī)構(gòu)。換擋齒輪布置在上方的中間軸上，有利于縮短換擋拔長(zhǎng)度，同時(shí)在換擋滑軌上設(shè)置自鎖、互鎖裝置，以避免變速器工作時(shí)脫擋和同時(shí)掛上兩個(gè)擋等操縱失誤。一擋、二擋及倒擋扭矩較大，布置在兩端靠近支承點(diǎn)處。一擋、倒擋共用一個(gè)滑動(dòng)齒輪。換擋滑動(dòng)齒輪做成雙聯(lián)齒輪有利于換擋。該變速器所有齒輪均采用模數(shù)為4的標(biāo)準(zhǔn)直齒齒輪，有利于生產(chǎn)制造。齒輪與軸聯(lián)接均采用花鍵聯(lián)接，由于不受軸向力，采用成本低廉的深溝球軸承。輸出軸受到主減速器小錐齒輪軸向力影響采用一對(duì)圓錐滾子軸承支承。該變速器大量采用傳統(tǒng)成熟技術(shù)，成本低廉，工作可靠同時(shí)又能滿足設(shè)計(jì)要求。 關(guān)鍵詞： 履帶式，拖拉機(jī)，變速器，滑動(dòng)直齒 ABSTRACT The track type tractor driving very low, and cutting off the motive to change to block and will cause tractor parking each time.So the transmission sadoption glide the wheel gear changes to block, the cost is cheap, work dependable, maintain the convenience.Because the tractor work environment variety compare greatly, request it the spreads to move to compare the scope to also compare greatly, can adopt two rightnesses of wheel gears to spread dynamic three stalk type transmission, be advantageous to extension to spread to move the ratio.At the same time, the tractor requests the power output device, can adopt in the center the stalk places and does the power output stalk up, inputting the stalk and outputting the stalk descend place.Can go to a stalk with the province thus, the side arranges a wheel gear to used to splash the oil wheel gear while input the stalk.At the tractor parking the work splash the oil lubrication.Manipulate the traditional hand of the organization adoption moves to change to block directly, the province goes to the long pull to change to block the organization.Change to block the wheel gear to arrange at above of middle stalk up, be advantageous to shorten to change to block to pull out the length, the constitution locks the device from the lock and with each other in changing to block the slippery track at the same time, taking off to block while toing avoid the transmission work and pin up at the same time two block etc. to manipulate the error.While block, two block and pour to block to is compare by dint greatly, arrange to close to pay to accept some place in the both ends.Block while block, pouring total use a glide wheel gear.Change to block to glide the wheel gear to make into a pair of wheel gearses to be advantageous to change to block.All wheel gears of that transmission all adopt the standard wheel gear that mold counts to 4, being advantageous to producing the manufacturing.The wheel gear and the stalk conjunctions all adopt the slippery key conjunction, because of be free from the stalk toward dint, adoption deep ditch ball bearings that cost is cheap.Output the stalk under the influence of lord decelerate the machine denticle axle toward dint adopt a rightness of roll the sub- bearings to pay to accept.Traditional mature technique of a great deal of adoption of that transmission, the cost is cheap, work credibility at the same time again satisfy the design request. KEYWORD: The track type, tractor, transmission, the glide wheel gear 目 錄 第一章 前言...............................................1 第二章 傳動(dòng)系概述.........................................2 §2.1 傳動(dòng)系方案........................................2 §2.2 變速器概述........................................3 第三章 變速器傳動(dòng)機(jī)構(gòu)布置方案.............................4 §3.1傳動(dòng)機(jī)構(gòu)布置方案分析................................4 §3.2 倒擋的布置方案.....................................5 第四章 變速器主要參數(shù)的確定................................6 §4.1齒輪形式............................................6 §4.2換擋機(jī)構(gòu)形式........................................6 §4.3 變速器軸承.........................................7 §4.4 具體參數(shù)確定.......................................8 第五章 變速器校核.........................................12 §5.1齒輪校核...........................................12 §5.2 軸的校核..........................................15 第六章 結(jié)論..............................................21 致謝......................................................22 參考文獻(xiàn)..................................................23 III