本文選題：輸送帶 + 接頭強度��； 參考：《東北大學(xué)》2011年碩士論文

【摘要】：鋼絲繩芯輸送帶是最具代表性的高強力輸送帶,適合長距離、大運量、高速度的現(xiàn)代化輸送的需要。整條輸送帶是通過硫化處理的方式連接在一起,所以每條帶至少有一個接頭,而接頭部分是輸送帶中最薄弱環(huán)節(jié),其強度要低于輸送帶的額定強度,由輸送帶接頭破壞引起輸送停滯造成的損失往往比安裝輸送帶接頭所投入的資金還要高。此外,提高接頭的疲勞強度有助于降低輸送帶的安全系數(shù),對降低生產(chǎn)成本有著重要的意義。 首先闡述了影響接頭疲勞強度的五個主要因素,詳細分析了與輸送帶本身有關(guān)的三個影響因素。針對影響因素中涉及到的性能參數(shù),設(shè)計出了輸送帶接頭疲勞強度測試實驗臺,并對實驗臺的硬件設(shè)備進行了合理的選型。該實驗臺能夠調(diào)節(jié)張力的變化范圍,測試運行過程中加載的張力值,記錄運行的應(yīng)力循環(huán)次數(shù),能夠檢測帶速的大小,同時對液壓驅(qū)動系統(tǒng)的工作壓力和油溫進行檢測。 采用Fuzzy-PID控制策略分別對電動機變頻調(diào)速系統(tǒng)和液壓同步驅(qū)動系統(tǒng)進行了建模,并用Simulink進行了仿真,在系統(tǒng)模型不十分精確的情況下,實現(xiàn)對系統(tǒng)的精確控制,同時與傳統(tǒng)的PID控制算法進行比較,分析兩者的區(qū)別。 實驗臺的控制系統(tǒng)基于西門子S7300,通過分析系統(tǒng)的實現(xiàn)功能,對PLC的主要配置進行了合理的選擇。運用STEP7編程軟件對系統(tǒng)的運行進行編程控制,PLC與HMI之間通信通過組態(tài)軟件Wincc flexible實現(xiàn)。同時根據(jù)國家橡膠輸送帶參數(shù)采集標準制定了詳細的實驗方法,對試樣制作、動載實驗、靜載實驗、結(jié)果評定等進行了詳細的說明。
[Abstract]:The steel wire rope core conveyer belt is the most representative high - strength conveyor belt , which is suitable for the needs of long - distance , large - haul and high - speed modern transportation .

In this paper , five main factors that affect the fatigue strength of the joint are described in detail . The three influencing factors related to the conveyor belt itself are analyzed in detail . The fatigue strength test bench of the conveyor belt joint is designed according to the performance parameters involved in the influencing factors . The experiment table can adjust the variation range of the tension , the tension value loaded during the test run , the number of stress cycles to be recorded and run , and the working pressure and oil temperature of the hydraulic drive system can be detected .

Fuzzy - PID control strategy is used to model the motor frequency conversion speed control system and the hydraulic synchronous driving system , and the simulation is carried out with Simulink . In the situation that the system model is not very accurate , the precise control of the system is realized , meanwhile , compared with the traditional PID control algorithm , the difference of the two is analyzed .

On the basis of Siemens S7300 , the control system of the experiment table is based on Siemens S7300 . The main configuration of the PLC is selected reasonably by analyzing the realization function of the system . The communication between the PLC and the HMI is realized through the configuration software Wincc flexible by using the STEP 7 programming software . At the same time , a detailed experimental method is developed according to the parameter acquisition standard of the national rubber belt , and detailed description is made on the sample making , the dynamic loading experiment , the static load experiment and the result rating .
【學(xué)位授予單位】：東北大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2011
【分類號】：TH22

【參考文獻】

相關(guān)期刊論文 前1條

1 朱小軍;燕振華;;ST1250鋼絲繩芯輸送帶接頭粘接工藝的改進[J];港口裝卸;2010年02期

，

本文編號：2057272