摘要:设计混砂机斜齿传动装置主要是设计其中的减速器,而减速器的设计又是机械设计的基础,是培养机械设计能力的基础。其目的就是:通过减速器设计,综合运用机械设计课程和其他选修课程的理论和实际知识,掌握机械设计的一般规律,树立正确的设计思路,培养分析和解决实际问题的能力。学会从机器功能的要求和实际需要出发,合理选择传动机构类型并制定设计方案,正确计算零件的工作能力,确定它们的尺寸、形状、结构及材料,并考虑制造工艺、使用、维护、经济和安全等问题,培养机械设计能力。通过减速器的设计,学会运用标准、规范、手册和查阅有关技术资料等,培养机械设计的基本技能。传动装置总体设计的内容为确定传动方案、选定电动机型号、计算总传动比和合理分配各级传动比,计算传动装置的运动和动力参数,为设计各级传动件和装配图设计提供条件。在减速器的设计中学会使用机械设计的基本知识,掌握机械设计的方法,学会运用AutoCAD画图和使用word软件中的更多附加工具,使自己的机械设计能力提高到一定的程度。
关键词:减速器、电动机、传动、齿轮
The designs of batch mill conveyer
Abstract:It mainly designs the decelerator among them to design of bantch mill conveyer transmission device, the design of training mechanical designed capacity .Its purpose is: Through the design of the decelerator, use machinery to design course, other theories of majoring in course first and practical intelligence synthetically,know the universal law that machinery is designed, establish the correct mentality of designing, cultivate the ability to analyse and solve practical problem. The society proceeds from the requirement for the function of the machine and actual need, choose organization’s type of the transmission and make the design plan rationally, calculate the ability to work of the part correctly, confirm their size,form, structure and material, consider such questions as manufacturing engineering, using, safeguarding, economy and security, etc, train mechanical designed capacity. Through the design of the decelerator, learn to use the standard, norm, manual and consult relevant technical data etc, basic kill of training machinery to be designed. Transmission device content that design not overall than and can’t assigned by transmission not at all levels rationally for confirming transmission scheme, selecting motor the types, calculation transmission not total of than, calculate sport and power parameter, transmission of device, offer the condition for designing the units at various levels and spreading moveable piece and installation diagram to design. Will use ABC that machinery is designed in the design middle school of the decelerator, grasp the method that machinery is designed, learn to use AutoCAD to draw and use more additional tools in word software, make one’s own mechanical designed capacity bring sure degree up to.
Keyword: Decelerator; motor; transmission; gear wheel.
1设计任务
1.1设计依据:
(1)工作机主轴上的功率 =1.8kW;
(2)工作机主轴上的转速 =30r/min;
(3)工作情况:两班制连续单向运转,载荷有轻微冲击;
(4)使用折旧器:8年;
(5)工作环境:室内,灰尘较大,环境最高温度为35 ;
(6)动力来源:电力,三相交流,电压380/220V;
(7)检修间隔期:四年一大修,二年一中修,半年一小修;
(8)制造条件及生产批量:一般机械厂制造,小批量生产。
1.2减速器的用途及使用范围
本产品广泛的应用于化工、冶金、煤炭、水电、建材等部门。功能是中长距离水平输送各种块状、粒状等散装物料,也可用来输送成件物品。
2传动方案的确定
2.1分析传动方案
传动方案一般用机构运动简图表示,它能简单明了地表示运动和动力的传递方式和路线以及各部件的组成和相互联接关系。满足工作机性能要求的传动方案,可以由不同传动机构类型以不同的组合形式和布置顺序构成。合理的方案首先应满足工作机的性能要求,保证工作可靠,并且结构简单、尺寸紧凑、加工方便、成本低廉、传动效率高和使用维护便利。一种方案要同时满足这些要求往往是困难的,因此要通过分析比较多种方案,选择能满足重点要求的较好传动方案。经过分析,这里采用为一级圆柱齿轮封闭式减速器,它适合于繁重及恶劣条件下长期工作,使用维护方便能更好的满足实际工况的需要。