本文選題：渦旋壓縮機 + 組合型線�。� 參考：《蘭州理工大學》2014年碩士論文

【摘要】：隨著以高效低耗、結(jié)構(gòu)緊湊、運行平穩(wěn)等優(yōu)勢而著稱的渦旋壓縮機的應用越來越廣泛,渦旋機械的工業(yè)應用不斷得到拓展。渦旋盤作為渦旋壓縮機的關(guān)鍵執(zhí)行部件,它的設(shè)計與制造對壓縮機性能的影響至關(guān)重要。近年來研究人員對傳統(tǒng)單一型線渦旋盤進行了改進,提出了以組合型線作為渦旋盤型線的新型渦旋壓縮機。新型渦旋盤型線雖然從理論上提高了壓縮機的某些性能指標,但是也增加了該類壓縮機的制造難度。因此研究新型渦旋盤的加工制造成為新型渦旋壓縮機實現(xiàn)產(chǎn)業(yè)化生產(chǎn)的關(guān)鍵。 本文首先基于渦旋壓縮機型線的共軛嚙合原理,按照渦旋型線法向等距線法理論,分析了組合渦旋型線的設(shè)計思路；選取圓的漸開線—高次曲線—圓弧這一渦旋型線的組合形式,設(shè)計了一個新型組合型線渦旋盤,建立了其完整齒廓的數(shù)學模型和三維實體模型。然后,根據(jù)新型組合型線渦旋盤的特點及加工精度要求,設(shè)計了渦旋盤的加工工藝,對其粗、精加工階段采用不同的方法來實現(xiàn)：基于Pro/E的輔助加工制造模塊對渦旋盤的整體進行粗加工；針對新型渦旋盤渦旋齒型線的構(gòu)成特點,提出了用雙圓弧樣條插值方法對渦旋齒型線進行擬合,來實現(xiàn)渦旋盤的精加工。最后,基于現(xiàn)有加工設(shè)備對所設(shè)計的新型渦旋盤進行了實體加工,通過三坐標測量機對渦旋盤精度進行檢測,結(jié)果表明加工質(zhì)量滿足要求。 本文提出了一套新型組合型線渦旋盤從型線設(shè)計到加工檢測的完整流程,并實現(xiàn)了零件加工和精度檢驗。本文提出的基于雙圓弧樣條插值法的新型渦旋盤數(shù)控加工軌跡設(shè)計算法,與采用傳統(tǒng)CAD/CAM軟件加工新型渦旋盤相比,生成的軌跡點個數(shù)更少,加工效果更好,較好地保證了刀具路徑的光滑性和連續(xù)性,且該方法的通用性和實用性也較強。由此為新型渦旋渦旋壓縮機渦旋盤的加工制造提供一種新的方法和思路。
[Abstract]:With the advantages of high efficiency, low consumption, compact structure and smooth operation, the application of scroll compressor is becoming more and more extensive, and the industrial application of scroll machinery has been expanded. As the key component of scroll compressor, the design and manufacture of scroll disc are very important to the performance of compressor. In recent years, researchers have improved the traditional single profile scroll disk, and proposed a new type of scroll compressor which uses the combined profile as the vortex disk profile. Although the new type of scroll disk profile improves some performance indexes of compressor theoretically, it also increases the manufacturing difficulty of this kind of compressor. Therefore, the research on the manufacture of new type scroll disc is the key to realize the industrialization of the new type scroll compressor. In this paper, based on the conjugate meshing principle of the vortex compressor profile, the design idea of the combined vortex profile is analyzed according to the theory of the normal isometric method of the vortex profile. In this paper, the involute, high-order curve and circular arc of a circle are selected, and a new type of vortex disk is designed, and its complete tooth profile mathematical model and three-dimensional solid model are established. Then, according to the characteristics and machining accuracy requirements of a new type of combined linear scroll disk, the machining technology of the vortex disk is designed, and the machining process of the vortex disk is coarse. In the stage of finishing, different methods are used to realize: rough machining of the whole scroll disk based on Pro/E aided manufacturing module, and the characteristics of the new type vortex tooth profile. In this paper, a double arc spline interpolation method is proposed to fit the vortex profile to realize the finish machining of the scroll disk. Finally, based on the existing processing equipment, the designed new scroll disk is processed in solid, and the precision of the scroll disk is tested by CMM. The results show that the machining quality meets the requirements. In this paper, a set of complete flow from profile design to machining inspection for a new type of combined line vortex disk is presented, and parts machining and accuracy testing are realized. In this paper, a new NC machining path design algorithm for vortex disk based on double arc spline interpolation method is proposed. Compared with the traditional CAD/CAM software, the number of trace points generated is less and the machining effect is better. The smoothness and continuity of the tool path are well guaranteed, and the method is more versatile and practical. This provides a new method and thought for the manufacture of new scroll compressor scroll disc.
【學位授予單位】：蘭州理工大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TG659;TH45

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