可伸縮帶式給料機設計

機械論文編號:JX286 所有圖紙,外文翻譯。論文字數:41803.頁數:99
目    錄
1 緒論 ...............................................................1
1.1可伸縮帶式給料機的用途............................................ 1
1.2給料機械的特點、分類和應用.......................................  1
1.2.1連續輸送機械的特點.............................................  1
1.2.2連續輸送機械的分類 ............................................. 2
1.2.3連續輸送機械的應用范圍.........................................  3
1.3帶式給料機的發展歷史及發展趨勢 ................................... 4
1.3.1帶式輸送機的發展歷史...........................................  4
1.3.2帶式輸送機的發展趨勢 ........................................... 7
1.3.3帶式輸送機發展的市場需求.......................................  7
1.4可伸縮大傾角帶式給料機的特點 ..................................... 8
1.5 給料機的工作原理及結構..........................................  9
1.5.1 膠帶的摩擦傳動原理............................................  9
1.5.2給料機的結構...................................................  9
1.6設計要求、目的及基本參數.........................................  11
1.6.1設計要求.................................................  ......11
1.6.2設計目的 ....................................................... 12
1.6.3設計參數 ....................................................... 12
2 整體結構設計 ...................................................... 12
2.1 散狀物料的特性..................................................  12
2.2帶速的選擇 ....................................................... 12
2.3總體布置設計 ..................................................... 13
2.4滾筒匹配 ................................................. ........14
2.5托輥間距 ......................................................... 15
3 參數計算 .......................................................... 15
3.1計算標準 ......................................................... 15
3.2原始參數.........................................................  15
3.3初定設計參數.....................................................  15
3.3.1帶速的確定 ..................................................... 15
3.3.2帶寬B的確定 .................................................... 15
3.4運行阻力的計算 ................................................... 16
3.4.1主要阻力................................................. ...... 16
3.4.2附加阻力 ....................................................... 17
3.4.3特種主要阻力...................................................  18
3.4.4特種附加阻力...................................................  19
3.4.5傾斜阻力 ....................................................... 19
3.4.6圓周驅動力 ..................................................... 20
3.5傳動功率的計算 ................................................... 20
3.5.1傳動滾筒的軸功率...............................................  20
3.5.2電機功率 ....................................................... 20
3.6膠帶張力.........................................................  20
3.6.1輸送帶不打滑條件校核...........................................  20
3.6.2輸送帶下垂度校核 ............................................... 21
3.6.3傳動滾筒合力Fn ................................................. 21
3.6.4各特性點張力................................................. .. 22
3.7拉緊裝置計算.....................................................  23
3.7.1拉緊力的計算 ................................................... 23
3.7.2拉緊行程的確定：...............................................  23
3.8膠帶及托輥的安全驗算.............................................  23
3.8.1輸送帶的選擇計算 ............................................... 23
3.8.2傳動滾筒直徑的核算 ............................................. 24
3.8.3托輥載荷的核算 ................................................. 24
4驅動裝置的設計.....................................................  25
4.1傳動簡圖.........................................................  26
4.2齒輪傳動的參數選擇 ............................................... 26
4.2.1．計算傳動比i .................................................. 26
4.2.2傳動齒輪模數m的確定 ............................................ 27
4.3齒數的確定.................................................  ......28
4.4電動滾筒減速齒輪幾何計算.........................................  29
4.4.1電動滾筒第Ⅰ級減速齒輪計算.....................................  29
4.4.2電動滾筒第Ⅱ級減速齒輪幾何計算.................................  32
4.5齒輪疲勞強度的校核計算...........................................  35
4.5.1．第一級外嚙合傳動齒輪接觸疲勞強度校核計算.....................  35
4.5.2第一級齒輪彎曲疲勞強度校核計算 ................................. 38
4.5.3內嚙合傳動齒輪疲勞強度校核計算 ................................. 40
4.5.4彎曲疲勞強度校核計算 ........................................... 43
4.6電動滾筒主要零部件的設計計算 ..................................... 45
4.6.1滾動體的計算...................................................  45
4.6.2左右法蘭軸的設計計算...........................................  47
4.6.3緊固件的計算.................................................  ..52
4.6.4鍵連接的計算...................................................  54
4.6.5軸承的選擇計算 ................................................. 55
5 機架的設計計算.................................................  ...58
5.1固定臂主梁.......................................................  58
5.2伸縮臂移動機構...................................................  58
5.3伸縮臂阻力計算 ................................................. ..59
5.3.1伸縮臂的載重及自重.............................................  59
5.3.2伸縮臂移動阻力 ................................................. 59
6液壓伸縮系統的整體設計.............................................  59
6.1系統的使用要求及速度負載分析.....................................  59
6.2液壓系統方案設計.................................................  60
7液壓伸縮系統部件設計................................................ 62
7.1液壓缸的設計 ..................................................... 62
7.1.1液壓缸的結構................................................. .. 62
7.1.2缸筒的設計與計算 ............................................... 63
7.1.3活塞設計................................................. ...... 65
7.1.4活塞桿設計................................................. .... 66
7.1.5導向套、密封圈和防塵圈的選擇...................................  67
7.1.6中隔圈.........................................................  68
7.1.7油口...........................................................  69
7.1.8液壓缸主要技術性能的計算.......................................  69
7.2泵組的選型設計計算 ............................................... 71
7.2.1液壓泵的選擇................................................. .. 71
7.2.2泵的驅動功率 ................................................. ..72
7.2.3泵站電機的選型 ................................................. 72
7.2.4電動機的安裝形式...............................................  72
7.2.5聯軸器 ................................................. ........72
7.2.6泵組底座................................................. ...... 72
7.2.7管路附件 ....................................................... 72
7.3閥組的選型設計...................................................  73
7.3.1電磁換向閥 ..................................................... 73
7.3.2液控單向閥 ..................................................... 73
7.3.3溢流閥 ......................................................... 73
7.3.3壓力表.......................................................... 74
7.3.4壓力表開關.................................................  ....74
7.4液壓輔件的計算與選擇.............................................  74
7.4.1液壓管道計算 ................................................... 74
7.4.2油箱及其附件的選擇和計算 ....................................... 75
7.5驗算液壓系統性能 ................................................. 77
7.5.1驗算壓力損失................................................. .. 77
7.5.2驗算溫升.................................................  ......78
7.5.3驗算液壓沖擊 ................................................... 80
8給料機部件選型.....................................................  80
8.1輸送帶...........................................................  80
8.2驅動裝置.........................................................  81
8.3改向滾筒.........................................................  81
8.4托輥.............................................................  81
8.5托輥形式選擇、類型和應用.........................................  81
8.6拉緊裝置 ......................................................... 82
8.6.1拉緊裝置的作用和位置 ........................................... 82
8.6.2常用的拉緊裝置 ................................................. 83
8.7清掃裝置.........................................................  84
8.8導料槽................................................. .......... 84
結論 ................................................................ 86
參考文獻............................................................  87
英文原文............................................................  88
中文翻譯........................................................... . 94
致謝 ................................................................ 

摘    要

用傳統的帶式給料機給汽車、火車、輪船裝煤炭及其它物料時，皮帶機不能在原處一次性裝滿貨物，并且托輥夾角小使皮帶機傾角只能為17度，給一些高大容器裝載帶來很多的困難。
本論文設計內容是可伸縮帶式給料機，是通過傳動滾筒與膠帶之間的摩擦力來傳遞牽引力，以膠帶兼作牽引機構和承載機構的一種給料設備，伸縮臂尾部設置有可伸縮的液壓支柱，使整機長度靈活的伸長或縮短，托輥之間夾角增大可使皮帶機傾角可達到25度，具有給料量大，運輸平穩，維修方便，可多點卸料，占地面積小等特點，給裝車帶來方便，能廣泛的應用于各種散料集散地的生產現場。
本文論述了可伸縮帶式給料機的總體設計方案，采用逐點張力計算以及ISO5048功率計算相結合的方法選擇給料機合理的參數，對該給料機的部件進行選型、設計和校核，其中，對驅動裝置和伸縮裝置進行了較為詳盡的設計計算和校核。

關鍵詞： 可伸縮帶式給料機； 電動滾筒； 液壓系統

ABSTRACT

With the traditional belt feeding engine when for the automobile, the train, the steamboat installs the coal and other materials, the belt fastener cannot in the original position disposable pack the cargo, because the supporting roller included angle slightly enables the belt fastener inclination angle only to be 17 degrees, brings many difficulties for some big vessel loading.
The present paper design content is the expandable belt feeding engine, is transmits the force of traction through between the transmission drum and adhesive tape's friction force, concurrently makes the hauling organization and the load bearing organization one kind by the adhesive tape for the material equipment, expands and contracts the arm rear part establishment to have the expandable hydraulic prop, causes the complete machine length nimble elongation or the reduction, between the supporting roller the included angle increases to causes the belt fastener inclination angle to be possible to amount to 25 degrees, has for estimates in a big way, the transportation is steady, the service is convenient, the area slightly and so on characteristics, brings conveniently to the load, can the widespread application in each kind of bulk collection and distribution center production scene.
This article elaborated the expandable belt feeding engine's overall project design, uses method choice feeding engine reasonable parameter which point by point the computation as well as the ISO5048 power calculation unify, carries on the shaping, the design and the examination to this feeding engine's part, and expanded and contracted the installment to the drive to carry on the more exhaustive design calculation and the examination.

Keywords：Expandable belt feeding engine;  Electric roller;  Hydraulic system