刨煤機傳動系統與急停緩沖裝置設計

論文編號:JX1462  論文字數:15739.頁數:39  附開題報告，實習報告，外文翻譯，CAD圖，CAXA圖

摘要
 
 目前，我國開采薄煤層的機械設備較少，而刨煤機是一種價格低、結構簡單、維修方便、操作簡便的采煤設備。因此有必要對刨煤機進行研究設計。
 本文對刨煤機目前國內、外的發展情況進行了闡述，主要對刨煤機刨頭的傳動系統和急停緩沖裝置進行了設計研究。本文選用由電動機、耦合器、減速器組成的機械驅動裝置，由該裝置向刨頭提供動力；通過對刨頭的受力分析，結合刨頭實際采煤過程，利用氣壓傳動原理，設計急停緩沖裝置。
 刨頭傳動系統驅動刨頭完成切削煤壁的運動。急停緩沖裝置保證刨頭運行到工作端面時能夠緊急、可靠、安全地停車。
 關鍵詞：刨煤機；傳動系統；急停緩沖裝置

Abstract

 At present, in our country mines,the mechanical device machine to the thin coal bed is few, but the coal plow is one kind of low price, simple structure, easy operation mining coal equipment. Therefore it is necessary to carry on the research to design the coal plow.
 This article to the coal plow the home, the overseas development situation has carried on the elaboration at present, mainly and stopped the buffer mechanism to the coal plow discount transmission system to conduct the design research anxiously. This article selects by the machinery drive which by the electric motor, the coupler, the reduction gear is composed, provides the power by this equipment to the discount; Through to the discount stress analysis, the union discount actual mining coal process, the use pneumatic actuator principle, designs one to the existing air cylinder slightly transformation to stop the buffer mechanism anxiously.
 The discount transmission system impetus discount completes the movement of cutting coal wall, stops the buffer mechanism anxiously, guaranteed the discount moves to work end surface time urgent, reliable, stops safely.
Key word: Coal plow; Transmission system; Stops the buffer mechanism anxiously

目錄

前言 1
1 緒論 2
1.1 題目背景 2
1.2 設計目的及意義 2
1.3 刨煤機國內外發展情況 2
1.4 制約我國刨煤機發展主要因素 3
1.5 刨煤機行業在國內發展需要解決的問題 4
2 刨煤機傳動系統設計 6
2.1 機頭機尾傳動系統布置 6
2.2 鏈輪選擇設計 7
2.3 傳動鏈保護裝置設計 9
2.4 電動機選型 10
2.5 聯軸器的選型計算 11
2.6 減速器選型 11
3 刨頭緩沖裝置設計 14
3.1 緩沖裝置方案 14
3.2 刨頭刨削阻力計算 15
3.3 刨頭長度的確定 15
3.4 刨頭寬度的確定 16
3.5 刨頭高度的確定 16
3.6 刨刀間距t的確定 16
3.7 平均刨削阻力 18
3.8 單個銳利刨刀所受的煤壁平均擠壓力 19
3.9刨頭所受煤壁刨削阻力 19
4.計算過程及結果 21
4.1 裝煤阻力的計算 22
4.2 刨頭摩擦力的計算 27
4.3 緩沖裝置的設計 30
5 經濟性分析 35
6 結論 36
致謝 37
參考文獻 38