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

【摘要】：振動給料裝置是應用在采礦業(yè)送料分選場合和輕工行業(yè)自動上料及裝配生產(chǎn)線上的重要機械。激振器作為振動給料裝置的重要部件,決定著振動給料裝置的工作場合和性能,是國內(nèi)外學者研究的重點課題之一。本論文針對現(xiàn)有激振器的不足,通過對氣壓傳動系統(tǒng)原理的分析研究,設計了新型氣動激振器,并應用在振動料斗中,通過氣動振動系統(tǒng)仿真實驗對系統(tǒng)進行了分析。 采用閥控氣缸的原理,借鑒液壓激振器的控制形式,提出了氣動激振器的設計方案,建立了該類閥控氣缸的數(shù)學模型,結(jié)合計算機仿真,從理論上分析了系統(tǒng)參數(shù)對氣壓傳動系統(tǒng)的影響。 借鑒液壓激振器的控制形式,設計了適用于振動料斗的新型閥控一體式氣動激振器,對激振器的執(zhí)行元件和控制元件結(jié)構(gòu)進行了詳細設計。 將激振器應用在振動料斗中,建立了氣動振動料斗振動系統(tǒng)的數(shù)學模型。采用基于MATLAB的Simulink仿真技術,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)對氣動振動系統(tǒng)的影響。 分析了物料運動狀態(tài),得到判斷物料不同運動狀態(tài)時振幅和頻率的臨界值,給出了物料上料速度的計算公式,在此基礎上通過仿真實驗,分析了系統(tǒng)參數(shù)對物料運動狀態(tài)的影響。 通過本課題的研究,解決了激振器現(xiàn)存的問題,提高了振動料斗的工作性能,擴大了其適用范圍。
[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.

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

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