c5225型立式车床减速箱设计论文.doc

摘 要 机床减速器在立式车床中起着举足轻重的作用，对机床精度、加工速度稳定性及操作性有很大影响，进而它的研究与设计成为具有现实意义的重要课题。 本次课程设计内容为C5225型立式车床减速箱设计，主要是针对减速箱传动系统和换速系统设计与计算，实现传动比为1:4.6和1:1.5两种变速。设计过程灵活运用理论知识并有效地结合实际，在满足使用要求的前提下优化设计细节，降低减速箱制造成本。设计原理为电动机输出扭矩通过皮带穿给一级减速齿轮，一级减速齿轮扭矩传递给二级减速齿轮进而减速输出，其中液压缸驱动滑移齿轮控制联轴器啮合与脱开实现两种不同减速比减速。 经过对各部件的校核现已确定此次设计满足设计要求。皮带松紧可通过电动机座箱体上螺母旋转推动机座沿导轨移动实现，换速机构采用液压驱动拨叉直线式拨动滑移齿轮实现变速，该机构设计新颖便于操作并且具有较高的精度和可靠性。此减速器整体具有很高实用性，是大型立式车床减速器优选。 关键字：减速箱；齿轮传动系统；拨叉换速机构。 ABSTRACT The vertical form fill seal machine gear lathe playing a very important role in the processing speed of machine tools, stability and illustrate just a great influence. its research and design to become a reality of the important topics. The curriculum design the content to stand down the lathe c5225 type design is primarily directed at the slow down the drive system and change the system design, implementation and calculation drive ratio to 1: 1: 1.5 two variable speed. the design process use the theoretical knowledge and effectively combined in practice, the needs of the design details and optimizes speed of the manufacturing cost. After checking for each component has determined the design and meet the design requirements. Belt by electric base cabinet firmness on standby push along rails rotating nut, change quickly move by hydraulic driving fork linear strike slipping gear speed, the realization mechanism design novel is easy to operate and has high precision and reliability. The whole high practicability, gear reducer is large vertical lathe. Keyword ： the speed of transmission ； for speed dialing and institutions. 摘 要 I ABSTRACT II 1前言 1 1.1 减速器国内外研究现状 1 1.2 减速器的组成 1 1.3 预期研究结果 1 2设计计算及说明 2 2.1 传动方案的拟定 2 2.2 电动机的选择 2 2.2.1 电机类型和结构型式 2 2.3 传动装置的运动和动力参数的选择和计算 3 2.3.1 计算传动装置总传动比和分配各级传动比 3 2.3.2计算传动装置的运动和动力参数 4 2.4V 带的设计 4 2.4.1 确定计算功率 4 2.4.2 确定带轮的基准直径并验算带速 5 2.4.3 计算带的根数 6 2.4.4带轮的结构设计 6 2.5 齿轮的设计 6 2.5.1 选定一级齿轮类型、精度等级、材料及齿数 7 2.5.2 按齿面接触强度设计 7 2.5.3 按齿根弯曲强度设计 8 2.5.4 几何尺寸计算 9 2.5.5选定齿轮类型、精度等级、材料 9