防竄倉往復式給煤機

機械論文編號:JX333  所有圖紙,外文翻譯。論文字數:21378.頁數:30     

目    錄  
1．緒論 ...........................................................1
1．1往復式給煤機 ..................................................1
1．2往復式給煤機防竄倉裝置的設計研究...............................2
1．2．1 方案構思.................................................．2
1．2．2 工作原理 ..................................................2
   1．3K4型給煤機的技術改造......................................．3
　　　1．3．1 存在的問題...........................................3
      1．3．2 改進措施.............................................3
      1．3．3 經濟效益.............................................5
2．電動機和減速器的選用.........................................． 6
2．1位移分析.......................................................6
2．2　速度分析.....................................................7
2．3  加速度分析...................................................7
2．4往復式給煤機的工作簡述.........................................9
2．4．1往復式給煤機的運行阻力......................................10
2．4．2往復式給煤機的運行阻力由以下公式計算........................10
2．4．3電動機功率的計算............................................11
2．5 電動機的選型..................................................12
2．6 減速器的傳動比................................................13
2．7減速器的選用...................................................13
3聯軸器的選型......................................................15
3．1聯軸器的轉矩...................................................15
3．2聯軸器的理論轉矩計算...........................................16
3．3聯軸器的計算轉矩計算...........................................16
3．4強度驗算.......................................................16
3．4．1抗剪強度驗算................................................17
3．4．2壓強驗算....................................................17
4輥輪軸的設計計算..................................................18
4．1輥輪軸的設計計算...............................................18
4．2輥輪軸強度的校核...............................................22
5液壓缸的設計......................................................25
5．1 料倉口的尺寸設計..............................................25
5．2液壓缸的受力分析...............................................25
5．3液壓缸的推力和速度.............................................26
5．4液壓缸的主要尺寸計算...........................................28
5．4．1液壓缸內徑及活塞桿直徑的確定................................28
5．4．2油液作用在單位面積上的壓強..................................28
5．4．3液壓缸的理論作用力確定......................................29
5．4．4確定液壓缸的壁厚............................................30
5．4．5缸筒壁厚驗算................................................30
5．5活塞桿的設計...................................................31
5．5．1活塞桿的結構、尺寸的確定....................................31
5．5．2活塞桿的直徑的強度校核......................................32
5．5．3活塞桿彎曲穩定性驗算........................................32
5．5．4活塞桿的結構................................................33
5．5．5活塞桿的材料和技術要求......................................34
5．6活塞桿的導向套、密封和防塵.....................................35
5．6．1結構........................................................35
5．6．2導向套的材料................................................36
5．6．3導向套長度的確定............................................36
5．7活塞...........................................................36
　　　5．7．1活塞的結構型式........................................36
5．7．2活塞與活塞桿的連接..........................................37
5．7．3活塞的密封..................................................37
5．7．4活塞的材料..................................................37
5．7．5活塞的尺寸及加工精度........................................38
5．7．6活塞的最小導向長度H及液壓缸行程S的確定......................38
5．8液壓缸油口直徑的確定...........................................38
5．9缸筒底部厚度計算...............................................40
5．10液壓缸的流量的確定............................................44
5．11液壓缸的密封..................................................45
6液壓泵站的設計....................................................48
6．1液壓泵的選用...................................................48
6．2液壓系統圖的擬訂...............................................52
6．2．1液壓回路的選擇..............................................52
6．2．2油箱選型....................................................53
6．3箱壁、清洗孔、吊耳、液位計.....................................56
6．4閥的選型.......................................................58

7小結..............................................................60
7．1K式往復給煤機常見機械故障分析處理..............................60
7．1．l K式往復式給煤機構造原理....................................60
7．1．2 常見機械故障分析及處理措施.................................60
7．2 結語........................................................．60
參考資料 ..........................................................61
英文翻譯...........................................................62
致 謝 ............................................... .............70

摘   要

     往復式給煤機安裝在煤倉下口處，在煤礦井下生產中，設置一定容量的煤倉對于保證消峰平谷和高產、高效是十分必要的。
往復式給煤機由機架、底板（給煤槽）、傳動平臺、漏斗、閘門、托輥等組成。當電機開動后經彈性聯軸器、減速機、曲柄連桿機構拖動傾料13°的底板在輥上作直線往復運動，煤均勻地卸到其他設備上。它可以有效地提高工作面采掘設備的利用率，充分發揮運輸系統的潛力，保證連續均衡生產。但是，煤倉竄倉事故在我國煤礦經常發生。竄倉事故常造成設備嚴重損壞，井下停產，當竄倉煤量較大時，還會阻塞巷道，造成運輸巷通風不暢，引起瓦斯爆炸等事故。
為了防止和降低煤礦井下煤倉竄倉造成的設備損壞、人員傷亡、阻塞巷道和影響生產等危害，設計了一種用于往復式給煤機的防竄倉裝置，從而為煤倉竄倉的防治提供了一個新的途徑。
關鍵詞：曲柄滑塊機構 ；煤倉竄倉 ；防竄倉裝置 ；往復式給料機

ABSTRACT

The reciprocation type stoker installs in bunker the end openingplace, in the coal mine mine shaft production, the establishmentcertain capacity bunker disappears peak Pinggu regarding the guaranteeand the high production, is highly effective is extremely essential.
The reciprocation type stoker by the rack, the ledger wall, the transmission platform, the funnel, the strobe, therequest roller and so on is composed. After the electrical machinerystarts after the flexible coupling, the speed reducer, the crank linkmotion gear drives leans the material 13° ledger wall to make thestraight reciprocating motion on the roller, the coal evenly unloadsto other equipment on. It may effectively enhance the working surfaceexcavation equipment the use factor, fully displays the transportationsystem the potential, guaranteed continuously balanced produces. But, bunker flees the warehouse accident frequently to occur in our countrycoal mine. Flees the warehouse matter same as ever to create theequipment major damage, the mine shaft suspends production, when fleesthe warehouse coal amount is bigger, but also can block the tunnel,creates transports the lane to ventilate impeded, causes accident andso on gas explosion.
in order to prevent and reduce coal mine coal bunker channeling the warehouse equipment damage, casualties, Roadway congestion and impact production, and other hazards, for the design of a reciprocating coal channeling anti-aircraft positions devices, for the coal bunker channeling warehouse control provides a new way. Key words : coal bunker channeling warehouse; Coal; Anti-channeling devices warehouse.
Keywords：Crank slide organization；Bunker flees the warehouse；Guards againstflees the warehouse installment；The reciprocation type gives thematerial machine.