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遼寧工程技術(shù)大學(xué)課程設(shè)計
遼寧工程技術(shù)大學(xué)
課 程 設(shè) 計
題 目：連桿彈簧復(fù)位自動調(diào)偏裝置
班 級：
姓 名：
指導(dǎo)教師：
完成日期：
一、設(shè)計題目
二、設(shè)計要求
三、完成后應(yīng)上交的材料
四、進(jìn)度安排
五、指導(dǎo)教師評語
成 績：
指導(dǎo)教師
日 期
摘 要
在帶式輸送機運轉(zhuǎn)過程中，輸送帶的縱向中心線偏離輸送機理論中心線的現(xiàn)象稱輸送帶跑偏。它的表現(xiàn)是輸送帶邊緣至托輥或滾筒邊緣的距離與理論值相比或大或小。輸送帶的跑偏會使輸送帶與機架、托輥支架相摩擦，造成邊膠磨損。嚴(yán)重的跑偏會使輸送帶翻邊，若在滾筒表面邊緣有凸起的螺絲頭、覆蓋膠層局部剝離、劃傷等事故。跑偏會導(dǎo)致輸送機的事故停機次數(shù)增多，影響生產(chǎn)；跑偏還可能引起物料外撒，使輸送機系統(tǒng)的運營經(jīng)濟(jì)性下降。
為此，曲柄連桿式自動調(diào)偏裝置最突出的特色是曲柄連桿機構(gòu)。調(diào)偏架通過滾動軸承安裝在底座上，兩端對稱連接制作的連桿，連桿末端固定立輥。安裝在曲柄上的兩側(cè)立輥靠近輸送帶邊緣，一有跑偏出現(xiàn)，輸送帶就壓向該側(cè)立輥，使立輥隨著曲柄向外轉(zhuǎn)動，曲柄和連桿拉動調(diào)偏架按輸送帶運行方向旋轉(zhuǎn)一定角度，從而產(chǎn)生調(diào)偏。
Summary
While the bringing type conveyer operates, the phenomenon that the longitudinal centre line of the conveyer belt deviates from the mechanism of transporting and talks about the centre line claims the conveyer belt runs partially. Its behavior is either large or small on compared with theory value to holding the distance on the roller or edge of cylinder the edge of conveyer belt. The running and leaning towards and will enable conveyer belt and framework, ask the roller support to rub of conveyer belt, cause the glue is worn and torn. A serious one run, lean towards, can enable conveyer belt turn-ups, if surface edge have protruding screw head, cover glue layers of part strip, accident of scratching etc. in cylinder. Run, lean towards, can lead to the fact accident of conveyer shut down number of times increase, influence and produce; Run, may cause supplies let go also simply, make conveyer economic decline of operation of system.
For this reason, it is the crank connecting rod organization that the crank connecting rod type adjusts and leans towards the most outstanding characteristic of the device automatically. Adjust and lean towards the shelf and install the connecting rod made of the symmetrical connection of both ends on the base through the rolling bearing, the connecting rod sets up the roller terminal fixedly. Both sides that are installed on the crank set up the roller close to the edge of conveyer belt, run and simply appear, conveyer belt press to should incline, set up roller, make, set up roller rotate outwards with the crank, the crank and connecting rod spur and adjust and lean towards the shelf to rotate certain angle according to the conveyer belt operation direction, thus produced and adjusted partially.
目 錄
1引言…………………………………………………………1
2系統(tǒng)分析……………………………………………………2
2.1工作原理……………………………………………2
2.2初始條件……………………………………………2
2.3計算過程與分析……………………………………2
2.3.1阻力計算……………………………………2
2.3.2載荷計算……………………………………3
2.3.3總阻力計算…………………………………4
2.3.4彈簧彈力計算與選擇………………………4
2.3.5調(diào)偏架的固定………………………………5
2.3.6兩連桿的固定及計算………………………6
2.3.7其它桿件的安裝……………………………6
2.3.8立輥的規(guī)格…………………………………6
3．系統(tǒng)說明…………………………………………………7
4. 心得體會…………………………………………………8
參考文獻(xiàn)………………………………………………………8