32LB5-60型螺桿泵設(shè)計(jì)

機(jī)械論文編號(hào):JX715  論文字?jǐn)?shù):10194.頁(yè)數(shù):24   附CAD圖

目  錄
中文摘要 i
外文摘要 ii
目錄 iii
第一章 緒論 1
1.1概論 1
1.2螺桿泵的產(chǎn)生與發(fā)展 2
1.3螺桿泵設(shè)計(jì)方案 3
第二章 螺桿泵的結(jié)構(gòu)設(shè)計(jì) 4
2.1螺桿泵的結(jié)構(gòu)及特性 4
2.2螺桿泵的主體結(jié)構(gòu)分析 4
2.2.1單螺桿泵的壓力確定： 4
2.2.2單螺桿泵轉(zhuǎn)速的選擇： 5
2.2.3單螺桿泵襯套橡膠材料的選擇： 5
2.2.4 軸封： 7
2.2.5泵的驅(qū)動(dòng)方式： 7
第三章 螺桿泵工作設(shè)計(jì)計(jì)算 8
3.1螺桿設(shè)計(jì) 8
3. 2電機(jī)選擇 9
3.3主軸與軸承部件尺寸計(jì)算與校核 9
3.4聯(lián)軸器的選用 12
3.5螺桿與傳動(dòng)軸的連接件選擇 17
第四章 總結(jié) 19
參考文獻(xiàn)： 20
致謝 21

摘要
 泵是一類將原動(dòng)機(jī)所做的功轉(zhuǎn)化成功被輸送流體的壓力的勢(shì)能和動(dòng)能的流體機(jī)械。螺桿泵由于結(jié)構(gòu)和工作特性，具有下列諸多優(yōu)點(diǎn)： 能輸送高固體含量的介質(zhì)，流量均勻壓力穩(wěn)定，低轉(zhuǎn)速時(shí)更為明顯，流量與泵的轉(zhuǎn)速成正比，因而具有良好的變量調(diào)節(jié)性，一泵多用可以輸送不同粘度的介質(zhì)，泵的安裝位置可以任意傾斜。，適合輸送粘性物品和易受離心力等破壞的物品，體積小，重量輕、噪聲低，結(jié)構(gòu)簡(jiǎn)單，維修方便等。
 單螺桿泵的基本工作原理：?jiǎn)温輻U泵是一種內(nèi)嚙合偏心回轉(zhuǎn)的容積泵，泵的主要構(gòu)件：一根單頭螺旋的轉(zhuǎn)子和一個(gè)通常用彈性材料制造的具有雙關(guān)螺旋的定子，當(dāng)轉(zhuǎn)子在定于型腔內(nèi)繞定子的軸線作行星回轉(zhuǎn)時(shí)，轉(zhuǎn)定子之間形成的密閉腕就沿轉(zhuǎn)子螺線產(chǎn)生位移；因此就將介質(zhì)連續(xù)地，均速地、而且容積恒定地從吸入口送到壓出端。
 此次畢業(yè)設(shè)計(jì)的內(nèi)容主要包括螺桿尺寸數(shù)值計(jì)算、結(jié)構(gòu)件的選擇以及螺桿泵的繪圖這幾方面。其中，螺桿泵的尺寸計(jì)算，主要是根據(jù)《單螺桿泵設(shè)計(jì)及實(shí)驗(yàn)性研究報(bào)告》中的方法來(lái)計(jì)算的：通過(guò)分析水力集合系數(shù)K1,K2及轉(zhuǎn)速ns對(duì)泵性能曲線影響的對(duì)比試驗(yàn) ，闡述泵性能變化規(guī)律；在歸納分析優(yōu)秀水力模型基礎(chǔ)上，運(yùn)用數(shù)值分析方法擬合出系數(shù)K1,K2及泵容積效率計(jì)算公式，從而推導(dǎo)出泵螺桿直徑D，導(dǎo)程T和偏心距e的計(jì)算公式。

關(guān)鍵字：?jiǎn)温輻U泵；設(shè)計(jì)；水力計(jì)算；工程制圖

The Design of Screw Pump 32LB5-60

Abstract
 Pump is fluid mechanics, is a kind of power will be the driving force behind efforts to be translated into the pressure transmission fluid potential energy and kinetic energy of fluid machinery. Pumps in various sectors of the national economy have been widely used and people's lives is inextricably relationship. For example: urban water supply, agricultural drainage, irrigation; mining ventilation; metallurgical industry of gas, liquid delivery; and the oil industry, chemical industry and so on. According to statistics, the country's total electricity consumption species, pump 30% of power consumption. As technology advances, the scope of application of pump increasing, various applications of fluid mechanical parameters and reliability requirements have become more sophisticated, tend to focus on large capacity, high speed, high efficiency and automation. A wide variety of pumps, the design of the target volume of the screw pump to carry out research and design.
 Screw pump is turning to the use of screw liquid smoke emission. Screw to the middle of the initiative, motivated by the original rotation, the screw is driven on both sides of screw, with the initiative for the screw reverse rotation. Lord, are driven double-headed screw thread of the thread.     As a result of the mutual engagement of the screw and the screw and tube wall lining of the close co-operation of the inhalation in the pump outlet port and between, will be divided into one or more enclosed space. With the rotating screw and meshing, the sealed space in the pump suction side evolving to inhaled enclosed room in which the liquid, and from inhalation of room along the screw axis to move from row to push the client, will be closed in the space continuous discharge of liquid, like a nut in the thread when he was constantly turning the situation to move forward, this is the basic working principle of the screw pump.
 
key words: Single screw pump; design; Hydraulik calculation; Engineering Drawing