Forklifts can do handing works,and can flexibility to adapt to changing of handing requirements,and generally applicable to ports,railway stations,freight yard,workshops,warehouses,oil fields and the airport and places,and forklifts could still enter the cabin and container handing operations within.In addition,forklifts are alseo widely used in military and special explosion—proof sector,some vehicles will be unmanned,that officers should hot work in places close to or for Flexible Manufacturing Systerm.In short, as the logistics and technological development and the enhancement of the level of industrialization,the use of fork lifts will be expanding ,and it will become a yield varieties with a lot of material handing machinery.
The forklift is based produces already on the market in Dalian 6113 BG-10-ton forklift design,the basit parameters was similar,for the largest load of 10 tons.The main degin of the design is the transmission, Other parts only briefly describes or do not given the design.Within this total,the transmission of three-axis,gearbex,sliding gear transmission,simple and compact structure,by the same agencies to achieve a variable speed transmission and reverse operation..
The major trend ofmodern technology developmentof the fork truck is to be fully in consideration of the friendly operation, the reliability, the safety, the goodmaintenance, the specialization, the series, and the diversificat, and to adopt new technology, to improve steering system, and to focuson energy saving and environmentprotection in order to promote the truck’s capacity and quality.
Based on the analysis of current status of international and domestic forklift truck form design， the key elements and design principles in forklift truck form design was researched using industriM design theory and methodology：It Was put forward that the form offorklift truck should be simple and lively tll smooth lines in order to convey the sense of strength and steadiness；the color strives simplicity to make people feel pleasant and light — mainly usingtones ofyeHow and orange；there shouldbe big ass atthefrontand back oftrucks；thein— struments should be easy to read．The research results provided practical reference for forklift truck design．
Keywords： fork truck; 3-axis; sliding gear transmission; compact
目 錄
1 緒論
1.1 國內叉車外觀造型設計的現狀……………………………………1
1.2 國際叉車外觀造型設計的現狀……………………………………2
1.3 叉車造型設計幾個方面……………………………………………2
1.4 叉車技術的發展趨勢………………………………………………4
1.5 叉車在特殊條件下的應用……………………………………… 11
2 叉車設計總體方案
2.1 設計總體方案確定………………………………………………15
2.1.1 方案的制定原則……………………………………………15
2.1.2 設計方案的規劃 …………………………………………………15
2.1.3 方案設計內容總結 ………………………………………………17
2.2 叉車發動機的選擇………………………………………………17
2.2.1 發動機基本型式的選擇…………………………………………17
2.2.2 發動機主要性能指標的選擇……………………………………19
3 變速箱設計
3.1 變速箱的構造和原理……………………………………………23
3.2 變速箱的結構方案圖……………………………………………26
3.3 變速箱主要參數的選擇…………………………………………27
3.3.1 變速箱掛慢速檔時參數選擇……………………………………27
3.3.2 變速箱掛快速檔時參數選擇……………………………………30
3.3.3 變速箱掛倒檔時參數選擇……………………………………32
3.3.4 中心距確定………………………………………………………34
3.3.5 齒輪模數確定……………………………………………………34
3.3.6 齒數分配…………………………………………………………35
3.3.7 齒輪其他基本幾何參數與結構圖………………………………38
3.3.8 主要零件的計算…………………………………………………44
3.4 齒輪公差組的確定………………………………………………49
3.5 軸的結夠設計及強度計算………………………………………50
3.5.1 第一軸的結夠設計及強度計算…………………………………50
3.5.2 中間軸的結夠設計及強度計算…………………………………63
3.6 軸承的選擇與校核………………………………………………73
3.7 鍵的選擇與校核…………………………………………………76
3.8 確定箱體的基本參數 ……………………………………………80
4 差速器設計
4.1 差速器的類型及選擇 ………………………………………81
4.2 差速器齒輪設計…………………………………………………81
4.2.1 齒輪主要參數選擇 ……………………………………………81
4.2.2 幾何參數的計算……………………………………………………82
4.2.3 行星齒輪軸直徑及支撐長度確定…………………………………84
4.3 齒輪強度計算 ……………………………………………84
4.4 主減速器齒輪幾何尺寸計算……………………………………85
5 液壓驅動與控制系統的設計
5.1 驅動馬達的選擇…………………………………………………86
5.2 舉升液壓缸的計算 ………………………………………………87
5.2.1 液壓缸主要尺寸的確定 ………………………………………87
5.2.2 液壓缸的結構設計 ……………………………………………90
5.3 貨叉前端液壓缸設計……………………………………………95
5.4 驅動方案的選擇 …………………………………………………98
5.5 驅動方案的確定…………………………………………………100
6 液壓系統的常見問題及解決措施 ……………………………………101
結論 ………………………………………………………………………107
參考文獻 …………………………………………………………………108
附錄1 叉車總圖 ……………………………………………………110
翻譯部分
英文原文 ……………………………………………………………111
中文譯文 ……………………………………………………………117
致謝 …………………………………………………………………………121
...
熱門關鍵詞：
豫公網安備 41072402000322號
