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掃雪機(jī)的設(shè)計(jì)
學(xué) 生: 呂振鶴
指導(dǎo)老師: 向 陽(yáng)
(XX大學(xué)東方XX學(xué)院,長(zhǎng)沙,410128)
摘 要:本文在分析了目前國(guó)內(nèi)外的主要除雪方法的基礎(chǔ)上,提出一種適合中國(guó)國(guó)
情的小型機(jī)械旋轉(zhuǎn)式掃雪機(jī)的設(shè)計(jì)方案。本設(shè)計(jì)由汽油機(jī)提供動(dòng)力。經(jīng)輸出軸輸出動(dòng)力,通過(guò)鏈傳動(dòng)傳遞動(dòng)力,帶動(dòng)其他工作。該掃雪機(jī)的工程是利用攪龍旋轉(zhuǎn)將雪集中并向后推送,通過(guò)攪龍的向后推力及螺旋槳產(chǎn)生的吸力使其到達(dá)螺旋槳。由于螺旋槳高速旋轉(zhuǎn)產(chǎn)生巨大的作用力,雪被高速推向彎管,再通過(guò)與彎管壁撞擊折射出去。從而達(dá)到清除積雪的目的和最佳效果。
關(guān)鍵詞:掃雪機(jī) ;攪龍 ;傳動(dòng)軸
The Design of The Snow-blower
Student:Lv Zhen-he
Tutor:Xiang Yang
Abstract: After analyzing the various means of snow-clearings in the world at present, the project of a sort of snow-blower fit for China is put forward in this paper. Based on the theory study and applied structural design.This designis provided power by the petrol machine. It is outputted power by outputaxis, anddelivering power though a chain transmission, and arousing other work piece operations. Should in addition to the operate process of mini snow bloweris take advantage of stir revolution dragon to concentrate snow and push it backward, pass stir a dragon bckeward the vacuum force of thrust and aerofoil generate make it arrive aerofoil. Because of aerofoil with the top speed revolution generate enormous action force, and snow with top speed is pushed to the conduit bend, then collide with conduit bend wall and project out the conduit bend after refracting, thus hit the purpose
Keywords: Snow-blower; auger;transmission shaft
目 錄
摘要 …………………………………………………………………………………1
關(guān)鍵詞 ………………………………………………………………………………1
1 引言………………………………………………………………………………2
1.1 研究的目的和意義………………………………………………………3
1.2 國(guó)內(nèi)外研究現(xiàn)狀…………………………………………………………3
2 總體方案設(shè)計(jì)……………………………………………………………………4
2.1 設(shè)計(jì)任務(wù)與要求…………………………………………………………4
2.2 系統(tǒng)工作原理……………………………………………………………4
2.3 主要技術(shù)參數(shù)……………………………………………………………5
3 具體方案設(shè)計(jì)及加工……………………………………………………………5
3.1 動(dòng)力參數(shù)…………………………………………………………………5
3.2 鏈與鏈輪…………………………………………………………………5
3.2.1 確定鏈條節(jié)數(shù)……………………………………………………6
3.2.2 確定節(jié)距…………………………………………………………6
3.2.3 確定中心距………………………………………………………6
3.2.4 驗(yàn)算鏈速…………………………………………………………6
3.2.5 壓軸力……………………………………………………………6
4 傳動(dòng)軸的設(shè)計(jì)與校核……………………………………………………………7
4.1 軸的設(shè)計(jì)計(jì)算……………………………………………………………7
4.2 確定各軸的直徑和長(zhǎng)度…………………………………………………7
4.3 軸的校核…………………………………………………………………8
5 渦輪與蝸桿………………………………………………………………………8
5.1 按接觸強(qiáng)度計(jì)算…………………………………………………………8
5.1.1 確定蝸桿頭數(shù)、蝸桿齒數(shù)………………………………………8
5.1.2 確定渦輪轉(zhuǎn)矩……………………………………………………9
5.1.3 確定條件…………………………………………………………9
5.1.4 初定中心距、模數(shù)、倒程角……………………………………9
5.1.5 計(jì)算傳動(dòng)效率……………………………………………………9
5.2 驗(yàn)算齒面接觸強(qiáng)度………………………………………………………9
5.3 計(jì)算傳動(dòng)的主要尺寸……………………………………………………10
5.4 彎曲強(qiáng)度驗(yàn)算……………………………………………………………10
6 攪龍軸設(shè)計(jì)與校核………………………………………………………………11
6.1 軸的設(shè)計(jì)計(jì)算……………………………………………………………11
6.2 確定各軸段的直徑和長(zhǎng)度………………………………………………12
6.3 軸的校核…………………………………………………………………12
7 鍵的選擇與校核…………………………………………………………………14
8 螺旋葉片的設(shè)計(jì)…………………………………………………………………14
9 結(jié)論 ……………………………………………………………………………15
9.1 設(shè)計(jì)完成情況……………………………………………………………15
9.2 結(jié)論………………………………………………………………………16
參考文獻(xiàn) ……………………………………………………………………………16
致謝 …………………………………………………………………………………17