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摘 要
壓縮機(jī)曲軸軸頸及曲軸銷是動(dòng)配合，要求表面粗糙度通常在Ra0.4以下，常用磨削的方法加工及拋光。由于其形狀不規(guī)則，安裝復(fù)雜，產(chǎn)量低，加工成本高，設(shè)備昂貴。提出采用振動(dòng)拋光機(jī)專用設(shè)備進(jìn)行拋光。
拋光是超精密加工中一種重要加工方法，其優(yōu)點(diǎn)是加工精度高，加工材料范圍廣。拋光機(jī)是用嵌入磨料的研具對(duì)工件表面進(jìn)行研磨的工具，是保證研磨加工的重要條件。由于傳統(tǒng)研磨存在加工效率低、加工成本高、加工精度和加工質(zhì)量不穩(wěn)定等缺點(diǎn)，這使得傳統(tǒng)研磨應(yīng)用受到了一定限制，為了提高研磨加工效率，機(jī)械研磨機(jī)已經(jīng)取代了傳統(tǒng)的手工研磨。
本文主要是合理的分析了振動(dòng)拋光機(jī)的傳動(dòng)系統(tǒng)和拋光原理，本振動(dòng)拋光機(jī)設(shè)計(jì)由電動(dòng)機(jī)、減速裝置、振動(dòng)馬達(dá)、振動(dòng)盤等組成，并設(shè)計(jì)了減速裝置。為了使其具有足夠的剛度、強(qiáng)度和穩(wěn)定性，對(duì)蝸輪蝸桿減速器上的主要零部件進(jìn)行了壽命校。
關(guān)鍵詞：曲軸；振動(dòng)拋光；蝸輪蝸桿；
Abstract
Compressor crank journal and crank pin is moving with the surface roughness is usually in the following Ra0.4 commonly grinding machining and polishing. Because of its irregular shape, installation complexity, low-yield, high processing costs, expensive equipment. Proposed special equipment vibration polishing machine polishing.
Polishing is an ultra-precision machining processing method, the advantage of high precision machining and processing a wide range of materials. The polishing machine is embedded abrasive lap on the workpiece surface grinding tool, is an important condition to ensure that the abrasive machining. Traditional grinding low processing efficiency, processing costs, unstable machining precision and quality shortcomings, which makes traditional grinding application subject to certain restrictions, in order to improve the efficiency of grinding, mechanical polishing machine has replaced the traditional hand-grinding.
This paper is reasonable analysis of vibration polishing machines the drivetrain and polishing principle, the vibration polishing machine design by the motor, deceleration device, vibration motor, vibration disk, and the design of the deceleration device. In order to have a sufficient rigidity, strength and stability of the main parts of the worm gear reducer school life.
【Key word】Crankshaft; vibration polishing; worm
目 錄
摘 要 I
Abstract II
目 錄 III
第1章 緒論 1
1.1本課題的研究背景及意義 1
1.2振動(dòng)研磨機(jī)國(guó)內(nèi)外發(fā)展現(xiàn)狀 3
1.3本課題研究?jī)?nèi)容 5
第2章 振動(dòng)拋光機(jī)研究 6
2.1振動(dòng)研磨機(jī)的工作原理 6
2.2振動(dòng)研磨的運(yùn)動(dòng)機(jī)理 8
第3章 蝸輪蝸桿減速器設(shè)計(jì) 10
3.1電動(dòng)機(jī)的選擇 10
3.2傳動(dòng)零件的設(shè)計(jì)計(jì)算 12
3.3 軸的設(shè)計(jì) 16
第4章 軸承的選擇和計(jì)算 21
4.1渦輪軸的軸承的選擇和計(jì)算 21
4.2 減速器鑄造箱體的主要結(jié)構(gòu)尺寸 22
第5章 其他零件設(shè)計(jì) 24
5.1鍵連接的選擇和強(qiáng)度校核 24
5.2 聯(lián)軸器的選擇和計(jì)算 24
5.3 減速器的潤(rùn)滑 25
致 謝 26
參考文獻(xiàn) 27
III