9R-28 型揉碎機設計 1摘要秸稈是一種潛在的粗飼料資源，我國每年有數(shù)千億斤農(nóng)作物秸稈被粉碎加工成飼料。飼料工業(yè)已經(jīng)發(fā)展成為國民經(jīng)濟中不可缺少的重要基礎產(chǎn)業(yè)。9R-28 型揉碎機主要用于粗飼料的加工,它集揉切碎和粉碎等機型的優(yōu)點,可將農(nóng)作物秸稈、牧草、藤蔓等作物莖桿揉碎成絲狀段、既可直接飼喂牲畜,也可將其青貯、氨化、堿化或進行其它加工。本文針對 9R-28 型揉碎機進行設計，本文首先分析了揉碎原理，擬定了9R-28 型揉碎機的傳動方案，采用 V 帶進行增速傳動。然后，對 V 帶傳動進行傳動設計計算，確定 V 帶的形式及帶輪的結(jié)構(gòu)參數(shù)。最后，對整個機器進行了結(jié)構(gòu)設計，重點對機架及轉(zhuǎn)子進行了設計。本文所設計的揉碎機結(jié)構(gòu)緊湊,性能優(yōu)良,使用可靠,工作平穩(wěn),操作簡便,適用范圍廣,可廣泛地滿足廣大用戶要求。關鍵詞：9R-28，揉碎機，V 帶傳動，轉(zhuǎn)子9R-28 型揉碎機設計 2ABSCTACTStraw is a kind of potential forage resources, there are hundreds of billions of pounds of crop straw crushed processed into feed every year in our country. Feed industry has become an important basic industry indispensable to the national economy.9R-28 rubbing machine is mainly used for processing of coarse fodder, it incorporates the merits of rubbing and crushing machine chopped, the crop straw, grass, crops such as rubber vine Stem Silk shaped section, which can be directly fed to livestock, and also can be processed for the silage, ammoniation, alkalization or.In this paper, based on the type of 9R-28 rubbing machine design, this paper first analyzes the principle of the transmission scheme for rubber, 9R-28 rubber, using V belt transmission.Then, the calculation of the transmission design of V belt drive, determination of V belt and pulley structure parameters.Finally, the whole machine structure design, focuses on the design of the frame and the rotor.Rubbing machine structure is designed in this paper has compact structure, excellent performance, reliable use, stable work, convenient operation, wide application range, can be used to meet the requirements of customers.Keywords: 9R-28, rubbing machine, V tape drive, the rotor9R-28 型揉碎機設計 3目錄摘要 IABSCTACT.II目錄 III第一章 緒論 11.1 課題的背景及意義 .11.2 揉碎機國內(nèi)外現(xiàn)狀與發(fā)展趨勢 21.2.1 國內(nèi)揉碎機研究及產(chǎn)品現(xiàn)狀 21.2.2 國外揉碎機現(xiàn)狀 5第二章 傳動方案擬定 72.1 揉碎機設計任務要求 72.2 方案擬定 82.2.1 傳動原理方案一 82.2.1 傳動原理方案二 92.3 流場作用與物料推移 .9第三章 傳動設計及計算 113.1 電動機的選擇 113.1.1 電動機選擇的方法 113.1.2 揉碎機功率消耗 .133.1.3 電動機選擇 133.2 傳動比的分配 143.3 V 帶傳動設計計算 .15第四章 結(jié)構(gòu)設計 174.1 機架設計 174.2 帶輪結(jié)構(gòu)設計 184.3 轉(zhuǎn)子結(jié)構(gòu)設計 224.4 軸承的選擇與校核 24第五章 結(jié)論 26參考文獻 27致謝 29