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摘 要
壓縮機曲軸軸頸及曲軸銷是動配合，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，安裝復雜，產(chǎn)量低，加工成本高，設備昂貴。提出采用振動拋光機專用設備進行拋光。
拋光是超精密加工中一種重要加工方法，其優(yōu)點是加工精度高，加工材料范圍廣。拋光機是用嵌入磨料的研具對工件表面進行研磨的工具，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、加工精度和加工質量不穩(wěn)定等缺點，這使得傳統(tǒng)研磨應用受到了一定限制，為了提高研磨加工效率，機械研磨機已經(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拋光機的傳動系統(tǒng)和拋光原理，本振動拋光機設計由電動機、減速裝置、振動馬達、振動盤等組成，并設計了減速裝置。為了使其具有足夠的剛度、強度和穩(wěn)定性，對蝸輪蝸桿減速器上的主要零部件進行了壽命校。
關鍵詞：曲軸；振動拋光；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振動研磨機國內外發(fā)展現(xiàn)狀 3
1.3本課題研究內容 5
第2章 振動拋光機研究 6
2.1振動研磨機的工作原理 6
2.2振動研磨的運動機理 8
第3章 蝸輪蝸桿減速器設計 10
3.1電動機的選擇 10
3.2傳動零件的設計計算 12
3.3 軸的設計 16
第4章 軸承的選擇和計算 21
4.1渦輪軸的軸承的選擇和計算 21
4.2 減速器鑄造箱體的主要結構尺寸 22
第5章 其他零件設計 24
5.1鍵連接的選擇和強度校核 24
5.2 聯(lián)軸器的選擇和計算 24
5.3 減速器的潤滑 25
致 謝 26
參考文獻 27
III