摘 要 III
Abstract IV
第一章 概述 1
1.1 概述 1
1.2 橋式起重機(jī)發(fā)展概述 1
1.2.1 國(guó)內(nèi)外現(xiàn)狀 2
1.2.2國(guó)外現(xiàn)狀 2
1.2.3國(guó)內(nèi)橋式起重機(jī)發(fā)展動(dòng)向 2
1.2.4國(guó)外橋式起重機(jī)發(fā)展動(dòng)向 3
1.3 現(xiàn)代雙梁橋式起重機(jī)設(shè)計(jì)的目的、內(nèi)容和要求 4
1.3.1 設(shè)計(jì)目的 4
1.3.2 設(shè)計(jì)內(nèi)容 5
1.3.3 設(shè)計(jì)要求 5
第二章 起升機(jī)構(gòu)的計(jì)算 6
2.1確定起升機(jī)構(gòu)傳動(dòng)方案，選擇滑輪組和吊鉤組 6
2.2選擇鋼絲繩 7
2.3確定滑輪主要尺寸 7
2.4確定卷筒尺寸，并驗(yàn)算強(qiáng)度 8
2.5選擇電動(dòng)機(jī) 9
2.6減速器的設(shè)計(jì) 10
2.6.1傳動(dòng)比的分配 10
2.6.2計(jì)算傳動(dòng)裝置的運(yùn)動(dòng)和動(dòng)力參數(shù) 11
2.6.3齒輪傳動(dòng)設(shè)計(jì) 13
2.6.4軸的設(shè)計(jì) 23
2.6.5軸的校核 26
2.6.6鍵的選擇和校核 32
2.6.7滾動(dòng)軸承的選擇和校核 33
2.7.選擇制動(dòng)器 36
2.8選擇聯(lián)軸器 36
2.9驗(yàn)算啟動(dòng)時(shí)間 37
2.10 制動(dòng)時(shí)間的驗(yàn)算 37
2.11 高速浮動(dòng)軸計(jì)算 38
第三章 吊鉤組的計(jì)算 40
3.1 吊鉤的計(jì)算 40
3.2吊鉤橫軸的計(jì)算 41
3.3滑輪軸計(jì)算 42
3.4拉板的強(qiáng)度驗(yàn)算 44
3.5 滑輪軸承的選擇 45
第四章 卷筒部件計(jì)算 46
4.1 卷筒芯軸的設(shè)計(jì)計(jì)算 46
4.2 選擇軸承 47
4.3 繩端固定裝置的計(jì)算 48
第五章 結(jié)論 50
致 謝 51
參考文獻(xiàn) 52
附 錄 53

摘 要
起重機(jī)的出現(xiàn)大大提高了人們的勞動(dòng)效率和經(jīng)濟(jì)效益，以前需要很多人力物力才能搬動(dòng)的大型物件現(xiàn)在用起重機(jī)就能輕易達(dá)到效果，尤其是在小范圍的搬動(dòng)過(guò)程中起重機(jī)的作用是相當(dāng)明顯的。像在工廠的廠房?jī)?nèi)搬運(yùn)大型零件或重型裝置時(shí)，橋式起重機(jī)所起到的作用就很明顯。
我們這次設(shè)計(jì)的是橋式起重機(jī)。橋式起重機(jī)是一種工作性能比較穩(wěn)定，工作效率比較高的起重機(jī)。橋式起重機(jī)小車(chē)主要包括起升機(jī)構(gòu)、小車(chē)架、小車(chē)運(yùn)行機(jī)構(gòu)、吊具等部分。其中的小車(chē)運(yùn)行機(jī)構(gòu)主要由減速器、主動(dòng)輪組、從動(dòng)輪組、傳動(dòng)軸和一些連接件組成。
因?yàn)椴灰獙?duì)小車(chē)進(jìn)行設(shè)計(jì)。所以，我們這次的設(shè)計(jì)對(duì)于減速器不是直接取標(biāo)準(zhǔn)件，而是自己重新設(shè)計(jì)。主要的設(shè)計(jì)部件是卷筒、吊鉤、鋼絲繩、滑輪和減速器。在我們將所有的部件都設(shè)計(jì)出來(lái)之后，我們將要對(duì)它們進(jìn)行cad的繪制，是我們能夠更好的表達(dá)出我們所做的東西。
最后，通過(guò)這次設(shè)計(jì)，我們對(duì)橋式起重機(jī)有了更進(jìn)一步的了解，認(rèn)識(shí)到了它的現(xiàn)狀和發(fā)展趨勢(shì)，這對(duì)我們以后從事機(jī)械行業(yè)方面的工作有很大的益處。

關(guān)鍵詞：橋式起重機(jī)，起升機(jī)構(gòu)，減速器，卷筒
Abstract
Crane appear greatly improved people's labor efficiency and economic benefit, previous need a lot of manpower to move large objects now used cranes can easily achieve effects, especially in small range of move process crane effect is quite obvious. Like in the factory workshop of handling large parts or heavy device, bridge crane that play the role is very obvious.
We this design is bridge crane. Bridge crane is a kind of performance is stable, the working efficiency is relatively high crane. Bridge crane car mainly includes hoisting mechanism, car frame, car mechanism, sling etc parts. One of the car mechanism mainly by the reducer, initiative, driven wheels, transmission shaft and some fittings wheelset composed.
Because don't design of car. So, we this design for reducer is not directly fetch standard, but oneself redesigned. The design of the main parts is drum, hooks, wire rope, pulley and reducer. All the parts in we will all come out later, we will design cad drawing on them, we will be better able to express what we do things.
Finally, through the design of a bridge crane, we have furtherunderstanding, recognized its status and development trend, and this for our future work in machinery industry has huge benefits.

Key words: bridge crane,hoisting mechanism,the reducer，coiling block