摘 要

我國(guó)應(yīng)用圓弧齒輪已經(jīng)有30多年的歷史。圓弧齒輪是一種高承載能力的動(dòng)力傳動(dòng)齒輪。圓弧齒輪由于其齒形特點(diǎn)，因而具有很高的接觸強(qiáng)度和彎曲強(qiáng)度。對(duì)調(diào)質(zhì)圓弧齒輪，與同材質(zhì)、同尺寸的漸開(kāi)線(xiàn)齒輪相比，齒面接觸強(qiáng)度可提高到2～4倍。
圓弧齒輪是一種點(diǎn)嚙合制的齒輪傳動(dòng)，運(yùn)動(dòng)的傳遞依靠接觸跡沿軸向移動(dòng)而實(shí)現(xiàn)。所以與傳統(tǒng)的、線(xiàn)嚙合制的漸開(kāi)線(xiàn)齒輪傳動(dòng)完全不同。因此，不僅在設(shè)計(jì)上有不同的考慮和計(jì)算方法，而且在制造、檢測(cè)、安裝和使用等各方面都有特殊要求。只有在全面保證設(shè)計(jì)、制造、安裝和使用的質(zhì)量條件下，才能獲得良好的效果。如果只套用漸開(kāi)線(xiàn)齒輪的應(yīng)用經(jīng)驗(yàn)，往往將導(dǎo)致圓弧齒輪的早期失效，這是必須注意的。
本文研究的對(duì)象是雙圓弧齒輪泵，但由于相關(guān)研究?jī)?nèi)容很多，涵蓋的知識(shí)領(lǐng)域比較廣泛，因此在有限的研究期限內(nèi)很難做到面面俱到。其重點(diǎn)是對(duì)雙圓弧齒輪的設(shè)計(jì)，包括圓弧齒輪齒形設(shè)計(jì)，圓弧齒輪參數(shù)設(shè)計(jì)，泵體部分零部件的校核，另外還用了PRO/E軟件繪制零件圖、裝配圖等。


關(guān)鍵詞：圓弧齒輪，泵，嚙合，設(shè)計(jì)















ABSTRACT

The arc gear has been used for more than 30 years. Arc gear is the one which can endure high load. Because of the trait of the gear form, it has the high contact intensity. And distort intensity. Contrast with the involutes gear. The contact can be improved to two to four times.
Arc gear is the transmission gear meshed at spot; it is realized by the move of the contact track along the shaft. So, it isn’t the same as other transmission gear. Not only the design method should be different from others, but also with machining, test, equip and using. If only the design, manufacture, fixing and quality be guaranteed, it can obtain the better effect. What’ more. If we only use the experience from in volute gear, usually, it will result in the early defect of the arc gear.
The article is maiming talking about the arc gear pump, but there are many details about the research. So, we can’t include all the aspects. The most important aspect are about the design, including the form design, parameter design, parts adjust, what more, the software Pro/E has been used to draw the part draft.


Key words: Arc gear, pump,mesh, design

















目 錄

中文摘要 Ⅰ
ABSTRACT Ⅱ
1緒論 1
1.1齒輪泵的發(fā)展及其研究現(xiàn)狀 1
1.1.1齒輪泵概述 1
1.1.2齒輪泵的研究現(xiàn)狀 2
1.2論文研究的目的和意義 3
1.3論文的主要研究?jī)?nèi)容 3
1.4本章小結(jié) 4
2圓弧齒輪齒形設(shè)計(jì)與計(jì)算 5
2.1圓弧齒輪齒形參數(shù)的選擇 5
2.2雙圓弧齒輪的齒形計(jì)算 8
2.3圓弧齒輪基本參數(shù)的選擇 12
2.4圓弧齒輪各個(gè)參數(shù)的最終確定 13
3圓弧齒輪的強(qiáng)度計(jì)算 16
3.1圓弧齒輪強(qiáng)度計(jì)算公式 16
3.1.1圓弧材料彎曲強(qiáng)度計(jì)算公式 17
3.2載荷、有關(guān)系數(shù)和疲勞極限 17
3.3圓弧齒輪強(qiáng)度校核 21
4軸的設(shè)計(jì)計(jì)算及校核 24
4.1軸設(shè)計(jì)的主要問(wèn)題 24
4.2軸的材料 24
4.3軸直徑的初步估算 24
4.4軸的結(jié)構(gòu)設(shè)計(jì) 25
4.5軸的強(qiáng)度校核計(jì)算 27
5圓弧齒輪的三維建模 28
5.1 Pro/ENGINEER功能介紹 28
5.2圓弧齒輪的三維建模 29
5.2.1草繪圓弧齒輪齒廓 29
5.2.2圓弧齒輪的繪制 31
5.3裝配圖 43
6 結(jié)論 44
參考文獻(xiàn) 45
致謝