本文關(guān)鍵詞： 振動(dòng)料斗 氣壓傳動(dòng) 激振器 數(shù)學(xué)模型 無因次參數(shù) 系統(tǒng)仿真　出處：《燕山大學(xué)》2011年碩士論文　論文類型：學(xué)位論文

【摘要】：振動(dòng)給料裝置是應(yīng)用在采礦業(yè)送料分選場合和輕工行業(yè)自動(dòng)上料及裝配生產(chǎn)線上的重要機(jī)械。激振器作為振動(dòng)給料裝置的重要部件,決定著振動(dòng)給料裝置的工作場合和性能,是國內(nèi)外學(xué)者研究的重點(diǎn)課題之一。本論文針對現(xiàn)有激振器的不足,通過對氣壓傳動(dòng)系統(tǒng)原理的分析研究,設(shè)計(jì)了新型氣動(dòng)激振器,并應(yīng)用在振動(dòng)料斗中,通過氣動(dòng)振動(dòng)系統(tǒng)仿真實(shí)驗(yàn)對系統(tǒng)進(jìn)行了分析。 采用閥控氣缸的原理,借鑒液壓激振器的控制形式,提出了氣動(dòng)激振器的設(shè)計(jì)方案,建立了該類閥控氣缸的數(shù)學(xué)模型,結(jié)合計(jì)算機(jī)仿真,從理論上分析了系統(tǒng)參數(shù)對氣壓傳動(dòng)系統(tǒng)的影響。 借鑒液壓激振器的控制形式,設(shè)計(jì)了適用于振動(dòng)料斗的新型閥控一體式氣動(dòng)激振器,對激振器的執(zhí)行元件和控制元件結(jié)構(gòu)進(jìn)行了詳細(xì)設(shè)計(jì)。 將激振器應(yīng)用在振動(dòng)料斗中,建立了氣動(dòng)振動(dòng)料斗振動(dòng)系統(tǒng)的數(shù)學(xué)模型。采用基于MATLAB的Simulink仿真技術(shù),在Simulink環(huán)境中建立了系統(tǒng)仿真模型。通過控制仿真初始參數(shù),分析了系統(tǒng)主要參數(shù)對氣動(dòng)振動(dòng)系統(tǒng)的影響。 分析了物料運(yùn)動(dòng)狀態(tài),得到判斷物料不同運(yùn)動(dòng)狀態(tài)時(shí)振幅和頻率的臨界值,給出了物料上料速度的計(jì)算公式,在此基礎(chǔ)上通過仿真實(shí)驗(yàn),分析了系統(tǒng)參數(shù)對物料運(yùn)動(dòng)狀態(tài)的影響。 通過本課題的研究,解決了激振器現(xiàn)存的問題,提高了振動(dòng)料斗的工作性能,擴(kuò)大了其適用范圍。
[Abstract]:Vibration feeding device is used to send important mechanical material sorting occasions and light industry automatic feeding and assembly line in the mining industry. As a vibration exciter for important parts feeder, which determines the workplace and performance of vibration feeding device, is one of the key topics of domestic and foreign scholars. This thesis aiming at the vibration exciter, through analyzing the principle of pneumatic system, the design of a new type pneumatic vibrator, and application in vibration hopper, the pneumatic vibration system simulation experiment of the system is analyzed.
Based on the principle of valve controlled cylinder and the control form of hydraulic exciter, a design scheme of pneumatic vibration exciter is put forward. A mathematical model of this kind of valve controlled cylinder is established. Combined with computer simulation, the influence of system parameters on pneumatic transmission system is theoretically analyzed.
Referring to the control form of hydraulic exciter, a new type of valve controlled pneumatic actuator suitable for vibration hopper is designed, and the executive elements and control element structure of the exciter are designed in detail.
The exciter used in vibration hopper, established the mathematical model of pneumatic vibration hopper vibration system. By using Simulink simulation technology based on MATLAB in Simulink environment, the system simulation model was established. By controlling the initial simulation parameters, analyzed the influence of the main parameters of the system of pneumatic vibration system.
The state of material movement is analyzed, and the critical value of amplitude and frequency of material in different motion state is obtained. The formula of material feed rate is given. Based on that, the influence of system parameters on material movement state is analyzed through simulation experiments.
Through the research of this subject, the existing problems of the vibrator are solved, the working performance of the vibrating hopper is improved and the scope of its application has been expanded.

【學(xué)位授予單位】：燕山大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2011
【分類號】：TH237.1

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本文編號：1488417