本文選題：盤式異步磁力耦合器 + 轉(zhuǎn)矩表達(dá)式�。� 參考：《江蘇大學(xué)》2017年碩士論文

【摘要】：盤式異步磁力耦合器是以電磁感應(yīng)原理為工作基礎(chǔ)的一種新型動力傳遞裝置,實現(xiàn)了電機與負(fù)載之間的無接觸式傳動,且因具有隔振、無需高精度對中、輕載啟動與過載保護等優(yōu)點,而被廣泛應(yīng)用于機械工業(yè)、電力、冶金等各個行業(yè)。磁力耦合器可以在不同負(fù)載工況下通過改變氣隙厚度實現(xiàn)調(diào)速功能,并在驅(qū)動離心式風(fēng)機、泵類等變轉(zhuǎn)矩負(fù)載時可實現(xiàn)調(diào)速節(jié)能效果,因此對于磁力耦合器的研究不僅在學(xué)術(shù)價值上意義重大,而且極具工程實用價值。本文對盤式異步磁力耦合器進行了如下幾個方面的研究:(1)建立盤式異步磁力耦合器的轉(zhuǎn)矩與調(diào)速關(guān)系的計算模型。利用等效磁路法與磁路的基爾霍夫定律建立磁力耦合器模型,通過對模型進行解析計算得出耦合器的磁路參數(shù),再結(jié)合三維修正系數(shù)與轉(zhuǎn)矩公式推導(dǎo)耦合器的最終轉(zhuǎn)矩表達(dá)式。通過對不同負(fù)載進行分析,進一步推導(dǎo)磁力耦合器在恒轉(zhuǎn)矩負(fù)載與變轉(zhuǎn)矩負(fù)載下的調(diào)速關(guān)系式,并利用Matlab對調(diào)速關(guān)系式進行求解,得到耦合器調(diào)速關(guān)系的理論計算值。(2)建立盤式異步磁力耦合器三維有限元模型,并對其機械特性與調(diào)速特性進行了模擬分析。建立盤式異步磁力耦合器的三維有限元模型并闡述建模過程,模擬分析耦合器的機械特性與調(diào)速特性,獲得耦合器機械特性曲線與調(diào)速特性曲線,并依據(jù)調(diào)速特性曲線分析耦合器的帶負(fù)載能力、調(diào)速節(jié)能和啟動性能,提出適合該磁力耦合器的變轉(zhuǎn)矩負(fù)載系數(shù),以及提高耦合器啟動性能的方式。模擬分析耦合器在不同負(fù)載轉(zhuǎn)矩下的調(diào)速關(guān)系,得到耦合器在調(diào)速過程中轉(zhuǎn)差率隨氣隙厚度的變化規(guī)律,驗證調(diào)速關(guān)系在理論計算上的正確性。(3)設(shè)計了盤式異步磁力耦合器智能調(diào)速系統(tǒng)的總體方案,并建立了智能調(diào)速系統(tǒng)的傳遞函數(shù)。提出盤式異步磁力耦合器智能調(diào)速系統(tǒng)的設(shè)計方案,建立智能調(diào)速系統(tǒng)的機械結(jié)構(gòu)模型與控制系統(tǒng)框圖;確定調(diào)速系統(tǒng)的運動方案,并對控制系統(tǒng)的硬件進行選取,設(shè)計硬件安裝接線圖;研究智能調(diào)速系統(tǒng)的機械結(jié)構(gòu)與控制系統(tǒng)的傳遞函數(shù),得到整個智能調(diào)速系統(tǒng)的傳遞函數(shù),從而確定輸入信號與氣隙厚度之間的關(guān)系,并通過傳遞函數(shù)對智能調(diào)速系統(tǒng)的穩(wěn)定性進行分析。(4)設(shè)計并研制盤式實心異步磁力耦合器樣機,搭建調(diào)速性能測試平臺,開展了磁力耦合器在恒轉(zhuǎn)矩負(fù)載與變轉(zhuǎn)矩負(fù)載下的調(diào)速關(guān)系、以及離心式風(fēng)機的負(fù)載特性的試驗測試。根據(jù)測試結(jié)果可知,耦合器的轉(zhuǎn)差率隨著氣隙厚度的增大而加速增大,并確定了風(fēng)機的變轉(zhuǎn)矩負(fù)載系數(shù)。測試值與計算值、模擬值具有較好的一致性。
[Abstract]:The disk asynchronous magnetic coupler is a new type of power transmission device based on the principle of electromagnetic induction. It realizes the contactless transmission between the motor and the load, and because of its vibration isolation, it does not need high precision alignment. Light-load startup and overload protection are widely used in mechanical industry, electric power, metallurgy and other industries. The magnetic coupler can realize the speed regulation function by changing the thickness of the air gap under different load conditions, and can realize the speed regulation and energy saving effect when driving the centrifugal fan, pump and other variable torque loads. Therefore, the study of magnetic coupler is not only of great academic value, but also of great practical engineering value. In this paper, the following aspects of the disk asynchronous magnetic coupler are studied: (1) the calculation model of the relationship between the torque and the speed regulation of the disc asynchronous magnetic coupler is established. The magnetic coupler model is established by using the equivalent magnetic circuit method and Kirchhoff's law of the magnetic circuit. The magnetic circuit parameters of the coupler are calculated by analyzing the model, and the final torque expression of the coupler is derived by combining the three-dimensional correction coefficient and torque formula. Through the analysis of different loads, the relationship between the constant torque load and the variable torque load of the magnetic coupler is further deduced, and the formula is solved by Matlab. The theoretical calculation value of coupler speed regulation relationship is obtained. (2) the three-dimensional finite element model of disc asynchronous magnetic coupler is established and its mechanical and speed characteristics are simulated and analyzed. The 3D finite element model of disk asynchronous magnetic coupler is established and the modeling process is described. The mechanical characteristic curve and speed regulating characteristic curve of the coupler are obtained by simulating and analyzing the mechanical characteristics and speed regulating characteristics of the coupler. According to the characteristic curve of speed regulation, the load capacity of coupler, the energy saving and startup performance of coupler are analyzed, and the variable torque load coefficient suitable for the magnetic coupler is put forward, and the way to improve the starting performance of coupler is put forward. The relation of coupler speed regulation under different load torque is simulated and analyzed, and the variation law of coupler's slip rate with air gap thickness is obtained in the course of speed regulation. To verify the correctness of the speed regulation relationship in theoretical calculation. (3) the overall scheme of the disk asynchronous magnetic coupler intelligent speed regulation system is designed and the transfer function of the intelligent speed regulation system is established. The design scheme of intelligent speed regulating system of disk asynchronous magnetic coupler is put forward, the mechanical structure model and control system block diagram of intelligent speed regulating system are established, the motion scheme of speed regulating system is determined, and the hardware of the control system is selected. Design the hardware installation wiring diagram, study the mechanical structure of the intelligent speed regulation system and the transfer function of the control system, get the transfer function of the whole intelligent speed regulation system, and determine the relationship between the input signal and the thickness of the air gap. The stability of the intelligent speed regulating system is analyzed by transfer function. (4) the disk solid asynchronous magnetic coupler prototype is designed and developed, and the testing platform of speed regulation performance is built. The relationship between the constant torque load and the variable torque load of the magnetic coupler and the test of the load characteristics of the centrifugal fan are carried out. According to the test results, the slip rate of the coupler increases with the increase of the air gap thickness, and the variable torque load coefficient of the fan is determined. The test value is in good agreement with the calculated value.
【學(xué)位授予單位】：江蘇大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TH139

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 楊超君;吉城龍;張秀文;章友京;袁愛仁;張小鋒;;COMI和CIMO型雙層實心異步磁力耦合器的傳動性能對比分析[J];機械傳動;2016年09期

2 呂沫;劉波;王玲玲;王德喜;劉佳;;聚磁式永磁渦流耦合器結(jié)構(gòu)參數(shù)對傳動性能的影響[J];廣東化工;2016年02期

3 牛景麗;陳東海;;基于MagNet的磁力耦合調(diào)速器磁路機構(gòu)的參數(shù)優(yōu)化[J];現(xiàn)代制造技術(shù)與裝備;2016年01期

4 段曉飛;;淺析變頻調(diào)速的優(yōu)點與缺點[J];科技與企業(yè);2014年22期

5 劉思廣;;磁力耦合器的應(yīng)用及其優(yōu)點[J];科技風(fēng);2014年11期

6 劉強;劉立山;王孝為;;基于PLC的X-Y工作平臺控制系統(tǒng)設(shè)計[J];電氣自動化;2014年02期

7 張祥星;杜慧慧;張連營;劉輝;;變頻器的現(xiàn)狀及發(fā)展趨勢[J];裝備制造技術(shù);2011年09期

8 劉琦;;變頻器的特點及應(yīng)用[J];采礦技術(shù);2009年02期

9 岳金峰;;感應(yīng)式異步電動機降壓起動分析[J];煉油技術(shù)與工程;2008年04期

10 楊超君;顧紅偉;;永磁傳動技術(shù)的發(fā)展現(xiàn)狀和展望[J];機械傳動;2008年02期

相關(guān)會議論文 前1條

1 王愛忠;;磁力耦合器在離心水泵、風(fēng)機上的應(yīng)用[A];第二屆電站鍋爐優(yōu)化運行與環(huán)保技術(shù)研討會論文集[C];2014年

相關(guān)碩士學(xué)位論文 前5條

1 章友京;盤式異步磁力耦合器變負(fù)載調(diào)速系統(tǒng)的工作性能研究[D];江蘇大學(xué);2016年

2 吉城龍;調(diào)速型筒式異步磁力耦合器傳動性能與調(diào)速性能研究[D];江蘇大學(xué);2016年

3 張帥;籠型轉(zhuǎn)子異步磁力耦合器結(jié)構(gòu)分析與調(diào)速系統(tǒng)研究[D];大連交通大學(xué);2015年

4 溫子淇;籠型轉(zhuǎn)子磁力耦合器永磁體計算及調(diào)速系統(tǒng)研究[D];大連交通大學(xué);2013年

5 沈強;軸向磁軸承及其轉(zhuǎn)子動力學(xué)研究[D];大連交通大學(xué);2008年

，

本文編號：2088115