發(fā)布時(shí)間：2019-05-19 13:39

【摘要】：齒輪箱作為一種機(jī)械設(shè)備中必不可少的連接和傳遞動力主要組成部分，，廣泛的應(yīng)用于各行各業(yè)。隨著科學(xué)技術(shù)的飛速發(fā)展，現(xiàn)代機(jī)械設(shè)備也向著大型化、高效化、自動化和高性能等方向發(fā)展。工業(yè)是國民經(jīng)濟(jì)的命脈，保證機(jī)械設(shè)備的正常運(yùn)行和持續(xù)運(yùn)行尤其重要。本文在已有設(shè)備和技術(shù)的基礎(chǔ)上建立齒輪箱狀態(tài)檢測與故障診斷試驗(yàn)平臺，模擬齒輪箱的各種故障。通過數(shù)據(jù)采集設(shè)備和故障診斷專家系統(tǒng)進(jìn)行數(shù)據(jù)采集和數(shù)據(jù)分析，經(jīng)分析得到故障原因，然后比較理論分析結(jié)果和試驗(yàn)?zāi)M結(jié)果，得出最終的結(jié)論。 研究中首先闡述了齒輪箱的故障機(jī)理，分別從齒輪箱故障形式和故障征兆、齒輪故障形式及振動機(jī)理、滾動軸承的故障特征及故障機(jī)理、齒輪軸的故障特征及故障機(jī)理和信號處理技術(shù)等幾方面進(jìn)行了介紹，并介紹了基于Zigbee技術(shù)的無線傳感器網(wǎng)絡(luò)及故障診斷專家系統(tǒng)。 其次，在已有的無線傳感器網(wǎng)絡(luò)技術(shù)和故障診斷專家系統(tǒng)的基礎(chǔ)上，用ADXL202無線加速度傳感器和DH3819協(xié)調(diào)器搭建無線傳感器網(wǎng)絡(luò)，設(shè)計(jì)齒輪箱故障振動試驗(yàn)臺，在齒輪箱部分設(shè)置了傳感器安裝位，通過ADXL202無線加速度傳感器把振動試驗(yàn)臺與數(shù)據(jù)采集系統(tǒng)及故障診斷專家系統(tǒng)連接起來。應(yīng)用無線傳感器網(wǎng)絡(luò)對齒輪箱進(jìn)行數(shù)據(jù)采集，將采集到的數(shù)據(jù)傳入故障診斷專家系統(tǒng)，最終組成一個(gè)完整的基于無線傳輸網(wǎng)絡(luò)的齒輪箱狀態(tài)監(jiān)測及故障診斷專家系統(tǒng)。 最后通過建立完成的系統(tǒng)進(jìn)行試驗(yàn)，采集齒輪箱測點(diǎn)振動數(shù)據(jù)，分別應(yīng)用故障診斷專家系統(tǒng)的時(shí)域分析模塊、頻域分析模塊、倒頻譜分析模塊和包絡(luò)譜分析模塊對采集到的數(shù)據(jù)進(jìn)行分析，提取頻率特征并且判斷故障，對比試驗(yàn)分析故障與實(shí)際模擬故障得出研究結(jié)論。根據(jù)研究結(jié)果對本課題提出建設(shè)性意見和未來的展望。
[Abstract]:Gearbox, as an indispensable part of mechanical equipment, is widely used in various industries. With the rapid development of science and technology, modern mechanical equipment is also developing in the direction of large-scale, high efficiency, automation and high performance. Industry is the lifeblood of the national economy, so it is particularly important to ensure the normal operation and continuous operation of machinery and equipment. In this paper, the condition detection and fault diagnosis test platform of gearbox is established on the basis of existing equipment and technology, and all kinds of faults of gearbox are simulated. Through data acquisition equipment and fault diagnosis expert system, data acquisition and data analysis are carried out, and the cause of fault is obtained through analysis, and then the theoretical analysis results and experimental simulation results are compared, and the final conclusion is obtained. In the study, the fault mechanism of gearbox is described, from the fault form and symptom of gearbox, the fault form and vibration mechanism of gear, the fault characteristics and fault mechanism of rolling bearing. The fault characteristics, fault mechanism and signal processing technology of gear shaft are introduced, and the wireless sensor network and fault diagnosis expert system based on Zigbee technology are also introduced. Secondly, on the basis of the existing wireless sensor network technology and fault diagnosis expert system, the wireless sensor network is built with ADXL202 wireless acceleration sensor and DH3819 coordinator, and the gearbox fault vibration test bench is designed. The sensor installation position is set up in the gearbox part, and the vibration test bench is connected with the data acquisition system and fault diagnosis expert system through ADXL202 wireless acceleration sensor. Wireless sensor network is used to collect the data of gearbox, and the collected data is passed into the fault diagnosis expert system. Finally, a complete expert system of gearbox condition monitoring and fault diagnosis based on wireless transmission network is formed. Finally, through the establishment of the completed system, the vibration data of gearbox measurement points are collected, and the time domain analysis module and frequency domain analysis module of fault diagnosis expert system are applied respectively. The cepstrum analysis module and the envelope spectrum analysis module analyze the collected data, extract the frequency characteristics and judge the fault, and compare the experimental analysis fault with the actual simulation fault to draw the research conclusion. According to the research results, this paper puts forward constructive suggestions and prospects for the future.
【學(xué)位授予單位】：武漢紡織大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TP274;TH165.3

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