防窜仓往复式给煤机

论文编号:JX333  所有图纸,外文翻译。论文字数:21378.页数:30

摘   要

     往复式给煤机安装在煤仓下口处，在煤矿井下生产中，设置一定容量的煤仓对于保证消峰平谷和高产、高效是十分必要的。
往复式给煤机由机架、底板（给煤槽）、传动平台、漏斗、闸门、托辊等组成。当电机开动后经弹性联轴器、减速机、曲柄连杆机构拖动倾料13°的底板在辊上作直线往复运动，煤均匀地卸到其他设备上。它可以有效地提高工作面采掘设备的利用率，充分发挥运输系统的潜力，保证连续均衡生产。但是，煤仓窜仓事故在我国煤矿经常发生。窜仓事故常造成设备严重损坏，井下停产，当窜仓煤量较大时，还会阻塞巷道，造成运输巷通风不畅，引起瓦斯爆炸等事故。
为了防止和降低煤矿井下煤仓窜仓造成的设备损坏、人员伤亡、阻塞巷道和影响生产等危害，设计了一种用于往复式给煤机的防窜仓装置，从而为煤仓窜仓的防治提供了一个新的途径。
关键词：曲柄滑块机构 ；煤仓窜仓 ；防窜仓装置 ；往复式给料机

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.
     

目    录  
1．绪论 ...........................................................1
1．1往复式给煤机 ..................................................1
1．2往复式给煤机防窜仓装置的设计研究...............................2
1．2．1 方案构思.................................................．2
1．2．2 工作原理 ..................................................2
   1．3K4型给煤机的技术改造......................................．3
　　　1．3．1 存在的问题...........................................3
      1．3．2 改进措施.............................................3
      1．3．3 经济效益.............................................5
2．电动机和减速器的选用.........................................． 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往复式给煤机的工作简述.........................................9
2．4．1往复式给煤机的运行阻力......................................10
2．4．2往复式给煤机的运行阻力由以下公式计算........................10
2．4．3电动机功率的计算............................................11
2．5 电动机的选型..................................................12
2．6 减速器的传动比................................................13
2．7减速器的选用...................................................13
3联轴器的选型......................................................15
3．1联轴器的转矩...................................................15
3．2联轴器的理论转矩计算...........................................16
3．3联轴器的计算转矩计算...........................................16
3．4强度验算.......................................................16
3．4．1抗剪强度验算................................................17
3．4．2压强验算....................................................17
4辊轮轴的设计计算..................................................18
4．1辊轮轴的设计计算...............................................18
4．2辊轮轴强度的校核...............................................22
5液压缸的设计......................................................25
5．1 料仓口的尺寸设计..............................................25
5．2液压缸的受力分析...............................................25
5．3液压缸的推力和速度.............................................26
5．4液压缸的主要尺寸计算...........................................28
5．4．1液压缸内径及活塞杆直径的确定................................28
5．4．2油液作用在单位面积上的压强..................................28
5．4．3液压缸的理论作用力确定......................................29
5．4．4确定液压缸的壁厚............................................30
5．4．5缸筒壁厚验算................................................30
5．5活塞杆的设计...................................................31
5．5．1活塞杆的结构、尺寸的确定....................................31
5．5．2活塞杆的直径的强度校核......................................32
5．5．3活塞杆弯曲稳定性验算........................................32
5．5．4活塞杆的结构................................................33
5．5．5活塞杆的材料和技术要求......................................34
5．6活塞杆的导向套、密封和防尘.....................................35
5．6．1结构........................................................35
5．6．2导向套的材料................................................36
5．6．3导向套长度的确定............................................36
5．7活塞...........................................................36
　　　5．7．1活塞的结构型式........................................36
5．7．2活塞与活塞杆的连接..........................................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活塞的最小导向长度H及液压缸行程S的确定......................38
5．8液压缸油口直径的确定...........................................38
5．9缸筒底部厚度计算...............................................40
5．10液压缸的流量的确定............................................44
5．11液压缸的密封..................................................45
6液压泵站的设计....................................................48
6．1液压泵的选用...................................................48
6．2液压系统图的拟订...............................................52
6．2．1液压回路的选择..............................................52
6．2．2油箱选型....................................................53
6．3箱壁、清洗孔、吊耳、液位计.....................................56
6．4阀的选型.......................................................58

7小结..............................................................60
7．1K式往复给煤机常见机械故障分析处理..............................60
7．1．l K式往复式给煤机构造原理....................................60
7．1．2 常见机械故障分析及处理措施.................................60
7．2 结语........................................................．60
参考资料 ..........................................................61
英文翻译...........................................................62
致 谢 ............................................... .............70