摘 要

水潤(rùn)滑動(dòng)密封軸承是一種用新型工程復(fù)合材料替代貴重金屬作為摩擦副，用自然水替代礦物油作為潤(rùn)滑介質(zhì)，由多曲面圓弧直線凹槽的橡膠合金襯套和金屬外殼與動(dòng)密封體等有機(jī)結(jié)合為一體的結(jié)構(gòu)，具有減振、降噪、耐磨、可靠、高效、節(jié)能、優(yōu)化軸系結(jié)構(gòu)、裝拆維修簡(jiǎn)便等優(yōu)點(diǎn)，從而實(shí)現(xiàn)資源節(jié)約與環(huán)境友好的目的。為了拓寬該產(chǎn)品的工程應(yīng)用領(lǐng)域，通過(guò)建立水潤(rùn)滑動(dòng)密封軸承試驗(yàn)臺(tái)，研究不同材料、結(jié)構(gòu)、轉(zhuǎn)速、載荷、溫升和潤(rùn)滑介質(zhì)等對(duì)它的摩擦學(xué)性能及泄漏量的影響，對(duì)提高它的潤(rùn)滑與密封性能，具有重要意義和工程價(jià)值。
本論文在機(jī)械傳動(dòng)國(guó)家重點(diǎn)實(shí)驗(yàn)室現(xiàn)有的水潤(rùn)滑動(dòng)密封軸承性能試驗(yàn)臺(tái)的基礎(chǔ)上，從該試驗(yàn)臺(tái)的結(jié)構(gòu)組成上著手，對(duì)其工作原理進(jìn)行了詳細(xì)地分析和闡述，針對(duì)計(jì)量泵精確計(jì)量微細(xì)流量的特點(diǎn)，在Visual Basic 軟件開發(fā)平臺(tái)上，利用軟件編程通過(guò)對(duì)數(shù)據(jù)的采集、儲(chǔ)存以及分析來(lái)實(shí)現(xiàn)對(duì)動(dòng)密封微細(xì)泄漏的計(jì)算機(jī)自動(dòng)化動(dòng)態(tài)檢測(cè)。最后，在試驗(yàn)臺(tái)上進(jìn)行不同載荷和轉(zhuǎn)速工況下的實(shí)驗(yàn)測(cè)試研究，為進(jìn)一步完善該試驗(yàn)臺(tái)的功能與相關(guān)技術(shù)指標(biāo)，深入開展水潤(rùn)滑動(dòng)密封軸承的理論研究和工程應(yīng)用提供一定的科學(xué)技術(shù)依據(jù)。


關(guān)鍵詞：水潤(rùn)滑，動(dòng)密封，軸承，摩擦學(xué)，試驗(yàn)臺(tái)

ABSTRACT

Water-lubricated dynamic sealing bearings are composed by multi-groove surface arc line rubber alloy bush and metal shell with the dynamic sealing body, using new type engineering complex materials instead of dear metals as friction pair, and nature water instead of mineral oil as lubricating medium, having the advantage of reducing vibration, decreasing noise, wear-resistant, reliable, efficient, saving energy, optimizing the shaft structure and easy maintenance, thus realizing the purpose of resource-saving and environment-friendly. In order to broaden the engineering application area, through establishing the test bed, the thesis study how different materials, structures, rotating speeds, loads, temperatures, lubricating mediums etc influence its tribology performance and leaking rate, and this has important significance and engineering value in improving its lubricated and sealing performance.
Based on the former water lubricated dynamic sealing bearings testing machine in the State Key Lab of Mechanical Transmission of Chongqing University, the thesis definitude the function and technique index, setting about the structure of the testing machine, to analyze and expatiate the working principle in detail. Aiming at the characteristic of calculating small flow exactly for flow control pump, with the software exploitation platform of the Visual Basic, by the way of gathering, storing and analyzing the data using software, the thesis realizes examining dynamically of the dynamic sealing small leaking with computer automatically. Finally, a testing research is made on different loads and rotating speeds conditions on the testing machine, which provide stated technology according for the theory research and engineering apply of the water-lubricated dynamic sealing bearings.


Key words：water-lubricating, dynamic sealing, bearings, tribology, test



目 錄
摘 要 I
ABSTRACT II
目 錄 III
1 緒論 1
1.1課題的背景及實(shí)用意義 1
1.2國(guó)內(nèi)外研究現(xiàn)狀綜述 2
1.2.1水潤(rùn)滑動(dòng)密封軸承的研究形狀 2
1.2.2機(jī)械密封測(cè)試的研究形狀 4
1.3本章小結(jié) 5
2水潤(rùn)滑動(dòng)密封軸承試驗(yàn)臺(tái)的工作原理分析 7
2.1動(dòng)密封實(shí)驗(yàn)系統(tǒng)實(shí)現(xiàn)的功能及技術(shù)指標(biāo) 7
2.2動(dòng)密封實(shí)驗(yàn)系統(tǒng)的構(gòu)成 8
2.2.1電機(jī)主軸傳動(dòng)裝置 9
2.2.2壓力倉(cāng)裝置 11
2.2.3油加壓系統(tǒng) 12
2.2.4計(jì)算機(jī)檢測(cè)和控制系統(tǒng) 18
2.3計(jì)量泵工作原理分析 20
2.3.1計(jì)量泵的結(jié)構(gòu) 20
2.3.2計(jì)量泵控制工作原理 21
2.4本章小結(jié) 22
3 水潤(rùn)滑動(dòng)密封軸承試驗(yàn)臺(tái)控制系統(tǒng)的實(shí)現(xiàn) 24
3.1需求分析 24
3.1.1問(wèn)題提出 24
3.1.2系統(tǒng)功能要求 24
3.2總體設(shè)計(jì) 25
3.2.1測(cè)試系統(tǒng)的構(gòu)成 25
3.2.2測(cè)試系統(tǒng)的結(jié)構(gòu)示意圖 25
3.3詳細(xì)設(shè)計(jì) 26
3.3.1系統(tǒng)界面設(shè)計(jì) 26
3.3.2代碼設(shè)計(jì) 31
3.4系統(tǒng)調(diào)試 32
3.5本章小結(jié) 32
4 水潤(rùn)滑動(dòng)密封試件的測(cè)試研究 34
4.1實(shí)驗(yàn)?zāi)康?34
4.2實(shí)驗(yàn)方法 34
4.2.1試驗(yàn)件 34
4.2.2實(shí)驗(yàn)內(nèi)容 35
4.2.3實(shí)驗(yàn)條件 35
4.2.4實(shí)驗(yàn)裝置 35
4.3實(shí)驗(yàn)步驟 36
4.3.1靜態(tài)實(shí)驗(yàn)操作步驟 36
4.3.2動(dòng)態(tài)循環(huán)實(shí)驗(yàn)操作步驟 36
4.4實(shí)驗(yàn)數(shù)據(jù)記錄 37
4.5實(shí)驗(yàn)結(jié)果分析 38
4.6本章小結(jié) 39
5 總結(jié) 41
致謝 42
參考文獻(xiàn) 43