4000TH差動分級齒輥式破碎機

機械論文編號:JX318 所有圖紙.論文字數:31892.頁數:71

目    錄

第一章緒論 ..............................................................1
1.1煤用破碎機的國內外技術發展及現狀......................................... 1
1.2選題的目的和意義.......................................................6
1.3新型雙齒輥破碎機開發的意義...............................................7
1.4新型雙齒輥破碎機發展綜述 ................................................8
1.4.1露天礦破碎煤和巖石的破碎機技術發展現狀................................. 8
1.4.2新型雙齒輥破碎機技術發展趨勢..........................................  9
第二章總體方案的確定 .......................................................10
2.1設計要求 ..............................................................10
2.2參數的選取 ............................................................10
2.3方案確定 ...............................................................10
第三章差動分級齒輥式破碎機破碎機理的研究 .................................. 12
3.1差動分級齒輥式破碎機的用途、結構組成及基本原理..........................  12
3.1.1用途及基本原理 ........................................................12
3.1.2結構組成及特點 ........................................................12
3.2差動分級齒輥式破碎機的破碎機理 .......................................... 13
3.3差動分級齒輥式破碎機所采用的破碎理論 ................................... .15
3.4齒形結構、齒的布置形式及制造材料 ........................................ 16
3.4.1齒形結構及其與產品粒度的關系 .......................................... 16
3.4.2齒的布置形式及其與產品粒度的關系................................... ... 17
3.4.3制造破碎齒的材料......................................................18
第四章差動分級齒輥式破碎機的總體設計....................................... 19
4.1參數理論計算分析....................................................... 19
4.1.1 4000噸差動分級齒輥式破碎機破碎能力的估算 ............................. 19
4.1.2 4000噸差動分級齒輥式破碎機破碎功率的估算 ............................. 20
4.1.3 4000噸差動分級齒輥式破碎機破碎動力源選擇 ............................. 21
4.1.4液力偶合器的選型 .....................................................21
4.1.5驅動滾軸篩以及高破碎輥運動的減速系統的選型............................. 22
4.2主傳動中及驅動低破碎輥運動減速系統的確定及設計........................... 22
4.2.1減速器的選用 ........................................................23
4.2.2總傳動比及傳動比分配 .................................................23
4.2.3減速器的設計 .........................................................24
4.3主傳動結構中破碎輥軸及偏心軸的結構設計 ...................................44
4.4差動分級齒輥式破碎機顎板的材質及選擇 .....................................46
4.4.1顎式破碎機的工作原理..................................................46
4.4.2顎板磨損機制 .........................................................47
4.4.3顎板材質.............................................................48
4.4.4顎板材質選擇的幾點建議 .................................................49
第五章篩分設備的分類、用途、篩面及有關設計 .................................50
5.1篩分設備分類 .............................................................50
5.2篩分設備的用途........................................................... 50
5.3篩分設備的篩面 ...........................................................51
5.4滾軸篩結構中閉式齒輪傳動的設計 ...........................................52
5.5滾軸篩輥軸的結構設計及有關參數計算 .......................................55
5.5.1最小直徑的確定......................................................... 56
5.5.2滾軸篩輥軸的強度校核 ...................................................57
5.2.3滾軸篩輥軸的軸承校核................................................... 60
第六章破碎物料對篩分、破碎過程的影響....................................... 62
6.1影響篩分過程的因素 .......................................................62
6.1.1煤的水分對篩分過程的影響 ...............................................62
6.1.2煤的粒度對篩分的影響 ...................................................63
6.1.3篩孔尺寸和形狀的影響 ...................................................63
6.1.4篩面長度和寬度......................................................... 63
6.2入料粒度組成對破碎效果的影響............................................. 64
6.3入料水分對破碎效果的影響................................................. 64
第七章破碎機械的操作和維修 .................................................65
7.1破碎機械的操作........................................................... 65
7.2破碎機械的維修 ...........................................................65
第八章潤滑和密封 ...........................................................66
8.1減速器的潤滑與密封....................................................... 66
8.2破碎機的潤滑與密封....................................................... 66
8.2.1滾動軸承的潤滑和密封................................................... 66
8.2.2破碎機所選用的軸承 .....................................................67
總  結................................................................... .68
參考文獻 ...................................................................69
致  謝.....................................................................70

摘   要

     隨著我國煤炭、冶金礦山向大型化發展，以大型破碎站為關鍵設備的半連續開采工藝得到了廣泛的應用。而大型破碎站的主機設備一直依賴于歐、美發達國家的產品。因此，開發高效節能新型破碎設備、替代進口、滿足國內大型礦山的需要勢在必行。
本文對差動分級齒輥式破碎機的原理、結構進行了概括介紹，重點圍繞4000t/h差動分級齒輥式破碎機的研制、開發。傳統破碎機依靠工作部件運動時施加與被破碎物料上的沖擊壓力實現破碎，效率低、能耗高、機器笨重，這些缺點限制了破碎機破碎能力的提高。為了提高破碎機的破碎能力，研制了一種差動分級齒輥式破碎機。介紹了該破碎機的工作原理、結構組成和技術特點。
我國大型露天煤礦可移式破碎站始于90年代。其破碎性能僅能滿足煤及較軟剝離物的破碎，使用受到了限制，不能滿足礦山使用要求。而本論文研究的高效、節能差動分級齒輥式破碎機由于其結構上獨特的優點，使得生產能力大、破碎硬度高、破碎比大、排料粒度均勻、過粉碎小，同時，該破碎機具有分級破碎的能力。因此，是一種發展前途廣闊的高效破碎設備。

關鍵詞：差動分級； 齒輥式破碎機； 分級破碎； 結構； 工作原理

ABSTRACT

With the development trend of Chinese coal and metal mine towards the upsizing, the half continuous mining technology featuring a large-scale crushing station as the key equipment has been used widely. Considering the main machine of the large-scale crushing station always depend on products from the developed countries such as European counties and USA, it is imperative to develop a new high-efficiency and energy saving crushing equipment to substitute imported equipment and meet the needs for the domestic large-scale mine.
This article gives a general description of the principle and structure of 4000t1h differential classification toothed roll crusher .When the traditional crushers material , it depends on the impact pressure which the working parts move to impose on the cracking material , the efficiency is low , energy consumption is high and weight is heavy . These disadvantages limit the improvement of its breaking ability. In order to improve the breaking ability of the crusher, a differential classification toothed roll crusher is studied and developed, and the operating principle, structure and technique characteristics are introduced.
The mobile crushing station began to be used in Chinese large- scale open- pit coalmine in the 1990s. Its crushing performance can only meet the crushing requirements for the coal and the softer declaim nation so that the application is restricted and the mine application requirements can not be met .The new high-efficiency and energy saving differential classification toothed roll crusher developed by this article, features high capacity, high crushing hardness, high crushing ratio uniform discharge grain-size and a small amount of over- crushing because of its unique structural advantages .While, the crusher have the breaking ability of classification . As a result, it is a high-efficiency crushing equipment with a broad developing future.

Keywords: differential classification; toothed roll crusher; graded brokenly; structure; operating principle