本文選題：振動(dòng)料斗　切入點(diǎn)：壓電驅(qū)動(dòng)　出處：《遼寧工業(yè)大學(xué)》2012年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：近年來(lái),壓電驅(qū)動(dòng)與控制技術(shù)在我國(guó)發(fā)展十分迅速,尤其在超聲振動(dòng)輸送領(lǐng)域得到了廣泛的應(yīng)用。本文以國(guó)家自然科學(xué)基金項(xiàng)目(項(xiàng)目編號(hào):50675094)的接續(xù)研究為背景,在現(xiàn)有的物料輸送和供給技術(shù)的基礎(chǔ)上,提出一種新穎的小型壓電式超聲振動(dòng)料斗的結(jié)構(gòu)方案并制作了相應(yīng)的實(shí)物樣機(jī)。 基于傳統(tǒng)的料斗結(jié)構(gòu)形式,根據(jù)彈性體振動(dòng)理論,提出了內(nèi)部含有梯形齒的錐筒形給料壓電振子的結(jié)構(gòu)形式。利用ANSYS有限元軟件對(duì)給料振子的振動(dòng)模態(tài)進(jìn)行動(dòng)態(tài)分析,對(duì)給料振子的結(jié)構(gòu)尺寸和陶瓷片的粘貼方案進(jìn)行了優(yōu)選�；谟邢拊�?jiǎng)討B(tài)設(shè)計(jì)結(jié)果,并考慮加工可行性及加工精度的要求設(shè)計(jì)并制作了錐筒形振子。研制了出料端內(nèi)徑為16mm的振子樣機(jī)以及小型超聲振動(dòng)料斗裝置。該樣機(jī)以三階面內(nèi)彎曲模態(tài)為工作模態(tài)。 采用激光測(cè)振儀并依據(jù)平面鏡反射原理設(shè)計(jì)了相應(yīng)的振子齒面測(cè)試系統(tǒng),并對(duì)已加工的振子進(jìn)行了振型和共振頻率的測(cè)試。該振子的工作頻率為22261Hz。實(shí)驗(yàn)結(jié)果表明,該振動(dòng)料斗的振子可以產(chǎn)生比較均勻的行波。論文對(duì)振動(dòng)料斗裝置進(jìn)行了整機(jī)的組裝及運(yùn)行效果的試驗(yàn),當(dāng)對(duì)振子施加一定的電壓激勵(lì)時(shí),料斗對(duì)物料的配送有一定的可控性。
[Abstract]:In recent years, piezoelectric drive and control technology has developed rapidly in China, especially in the field of ultrasonic vibration transmission. Based on the existing technology of material transportation and supply, a novel structural scheme of a small piezoelectric ultrasonic vibration hopper is proposed and a corresponding prototype is made. Based on the traditional hopper structure and the theory of elastic body vibration, the structure of the cone-cylindrical feed piezoelectric vibrator with trapezoid teeth is proposed. The dynamic analysis of the vibration mode of the feed vibrator is carried out by using ANSYS finite element software. The structure size of feed oscillator and the paste scheme of ceramic chip are optimized. Based on the dynamic design results of finite element method, Considering the feasibility of machining and the requirement of machining precision, a conical cylindrical oscillator is designed and fabricated. A prototype of the oscillator with an inner diameter of 16mm at the discharging end and a small ultrasonic vibration hopper device are developed. The prototype takes the third-order in-plane bending mode as the working mode. The measuring system of the tooth surface of the oscillator is designed by using the laser vibration measuring instrument and according to the reflection principle of the plane mirror, and the mode shape and resonance frequency of the machined oscillator are tested. The operating frequency of the oscillator is 22261 Hz. The experimental results show that, The vibrator of the vibratory hopper can produce a more uniform traveling wave. The assembly and operation effect of the vibrating hopper are tested in this paper. When a certain voltage is applied to the vibrator, the hopper has a certain controllability to the distribution of the material.
【學(xué)位授予單位】：遼寧工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類(lèi)號(hào)】：TH234;TB559

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相關(guān)期刊論文 前6條

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本文編號(hào)：1569305