發(fā)布時(shí)間：2018-01-04 03:35

  本文關(guān)鍵詞：KDQ1300壓磚機(jī)液壓控制系統(tǒng)的仿真及其改進(jìn)　出處：《燕山大學(xué)》2014年碩士論文　論文類(lèi)型：學(xué)位論文

  更多相關(guān)文章： 全自動(dòng)液壓壓磚機(jī) PLC控制 壓制規(guī)程 摩擦力 中框隨動(dòng) Simulink仿真分析

【摘要】：最近幾年，節(jié)約能源保護(hù)環(huán)境成為人們?nèi)找骊P(guān)注的話題，而傳統(tǒng)的粘土磚由于破壞環(huán)境，已經(jīng)不能適應(yīng)時(shí)代的要求，新型墻體材料開(kāi)始成為人們?nèi)找骊P(guān)注的焦點(diǎn)。液壓壓磚機(jī)作為新型墻體磚生產(chǎn)線上最關(guān)鍵的裝備，在積極吸收國(guó)外頂尖技術(shù)的同時(shí)，自身也在不斷的改進(jìn)。因此根據(jù)墻體磚壓機(jī)的特點(diǎn)研究壓機(jī)并提出合理的改進(jìn)措施有著重要的意義。 本文以某廠KDQ1300全自動(dòng)液壓壓磚機(jī)作為研究對(duì)象，首先對(duì)中框受力特性進(jìn)行分析，推導(dǎo)出了摩擦力方程，，并用線性回歸的方法得到了摩擦力參數(shù)的表達(dá)式；針對(duì)中框摩擦力高的問(wèn)題，提出在中框回油路改裝比例溢流閥的解決方案；基于Matlab軟件中的Simulink工具箱搭建了壓機(jī)液壓系統(tǒng)的仿真模型，借助于Matlab軟件中的C-MEX S函數(shù)，把壓機(jī)的PLC控制部分加進(jìn)了仿真模型中，所建模型包含了壓機(jī)的控制部分，負(fù)載以及液壓部分；結(jié)合所建模型仿真分析了壓機(jī)三種壓制規(guī)程的優(yōu)缺點(diǎn)。 其次，為了通過(guò)調(diào)整布料厚度來(lái)滿足壓力和位移的要求，編寫(xiě)了全自動(dòng)壓制規(guī)程，該壓制規(guī)程可以自動(dòng)返回壓制參數(shù)值；針對(duì)壓力和位移分別滿足要求的兩種情況進(jìn)行仿真分析，結(jié)合仿真結(jié)果計(jì)算出了滿足磚坯強(qiáng)度及精度要求應(yīng)該調(diào)整的壓制參數(shù)值。 最后，采用全自動(dòng)壓制規(guī)程的方法與人工試壓的方法分別調(diào)試壓機(jī)壓制粉煤灰磚，實(shí)驗(yàn)得出兩種調(diào)試方法下上缸跟中框的位移、摩擦力、壓制力以及中框兩腔壓力曲線，對(duì)比分析實(shí)驗(yàn)結(jié)果，驗(yàn)證了中框回油路采用比例溢流閥以及全自動(dòng)壓制規(guī)程的合理性及優(yōu)越性。
[Abstract]:In recent years, energy conservation and environmental protection has become a topic of increasing concern, and the traditional clay brick has been unable to adapt to the requirements of the times because of its damage to the environment. As the most critical equipment in the new wall brick production line, the hydraulic brick press is actively absorbing the top technology from abroad. Therefore, it is of great significance to study the press according to the characteristics of the wall brick press and put forward reasonable improvement measures. In this paper, a factory KDQ1300 automatic hydraulic press as the research object, first of all, the force characteristics of the central frame are analyzed, and the friction equation is derived. The expression of friction parameters is obtained by linear regression method. Aiming at the problem of high friction force in the middle frame, the solution of refitting the proportional relief valve in the oil return circuit of the middle frame is put forward. Based on the Simulink toolbox of Matlab software, the simulation model of hydraulic system of press is built, with the help of C-MEX S function in Matlab software. The PLC control part of the press is added to the simulation model. The model includes the control part of the press, the load and the hydraulic part. The advantages and disadvantages of the three pressing rules of the press are analyzed by the simulation of the model. Secondly, in order to meet the requirements of pressure and displacement by adjusting the thickness of the cloth, the automatic compaction procedure is written, which can automatically return the compaction parameter value. Based on the simulation analysis of pressure and displacement, the compaction parameters which should be adjusted to meet the requirements of strength and precision of brick slab are calculated in combination with the simulation results. Finally, the automatic pressing rules method and the manual pressure test method are used to debug the press respectively to suppress coal brick, and the results show that the displacement and friction force of the upper cylinder heel frame are obtained by two debugging methods. The compaction force and the pressure curve of the two cavities in the middle frame are compared with the experimental results, and the rationality and superiority of the proportional relief valve and the automatic pressing regulation in the oil return circuit of the middle frame are verified.
【學(xué)位授予單位】：燕山大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TH137;TP273

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