摇臂钻床说明书模板

摘要

本次毕业设计题目是“Z32K型摇臂钻床变速箱的改进设计”。Z32K型摇臂钻床是许多学校机械加工实习所用的设备，该产品是由前联钻床型号改制而成，已有三十多年的历史，但近年来，该型号钻床的生产率降低，经济效益较低，同时伴有工人劳动强度的增大，致使钻床的使用率下降，经调查分析，主要原因是该产品没有自动升降系统所致。为改进其使用效果，此次设计主要是对Z32K型摇臂钻床的升降系统进行分析设计与改进，并对钻床的主要传动零部件进行设计校核。同时针对其在实际使用过程中出现的一些问题，并在理论分析与计算的基础上，将其手动升降变为自动升降，然后制定出合理的传动方案，且选择合适的原动机作为它的动力源，使改进后的升降系统具有手动和自动升降并存的功能。

关键词：变速箱；手动、自动升降系统；摇臂钻床；直齿锥齿轮；强度校核

ABSTRACT

The graduation project entitled "The advanced design of the gearbox of Z32K radial drilling machine". Z32K radial drilling machine as the equipment is used in many schools during the practice of machining. This product has been transformed from the former Soviet Union Drilling models for almost 30 years. However, the use of Z32K radial drilling machine has decreased in recent years because of low productivity of this drilling machine, the lack of economic efficiency on usage of Z32k comparably, and an increase in labors' intensity during the production. By the research analysis, the reduction of Z32K is because this product has shortage on the automatic lifting system. In order to improve the efficiency of Z32K, the lifting systems of Z32k radial drilling machine will

be primarily planed to promote in this time of design. Meanwhile, the main transmission parts of the drilling are going to be reunified. To some problems which occur in actual use, and on the basis of theoretical analysis and calculation, there will develop a proposal to change manual lift to automatic lift.then make the transmission scheme reasonable,and choose the appropriate engine as the power source of the gearbox,and the lifting of the improved system has manual and automatic lifting the coexistence of function.

Keyword: transmission；manual operating and automatic fluctuation system；universal radial drilling machine；straight bevel gear；strength cheeks

目录

1 概述 (1)

1.1摇臂钻床的简介 (1)

1.2摇臂钻床的发展趋势 (1)

1.3摇臂钻床的加工原理 (2)

2 原动机的选择 (3)

2.1原动机的运动形式 (3)

2.2原动机的选择 (3)

3 机械传动方案的拟定与比较 (5)

4 绘制变速箱中升降系统的传动机构运动简图 (8)

5传动部分运动及动力分析 (9)

5.1部分传动连接设计 (9)

5.2传动比、各轴转速、功率及转矩的计算 (9)

5.3齿轮材料的选择 (11)

5.4直齿圆锥齿轮的尺寸设计计算及校核 (12)

5.4.1直齿圆锥齿轮各参数的设计计算 (12)

5.4.2圆锥齿轮的受力分析 (13)

5.4.3直齿圆锥齿轮的结构设计 (13)

5.4.4直齿圆锥齿轮强度校核 (14)

5.4.5圆锥齿轮齿面接触疲劳强度校核 (17)

5.4.6直齿圆锥齿轮齿根弯曲疲劳强度的校核 (17)

5.5锥齿轮轴机-6的尺寸设计计算及校核 (18)

5.5.1锥齿轮轴机-6轮齿部分主要参数设计计算 (18)

5.5.2直齿圆锥齿轮轴机-6轴端部分设计 (19)

5.5.3锥齿轮轴机-6的固定 (20)

5.5.4锥齿轮轴机-6轴径部分的设计计算 (20)

5.5.5直齿圆锥齿轮轴机-6轴径部分的校核 (21)

5.6机-4齿轮设计计算及校核 (22)

5.6.1机-4齿轮尺寸设计计算 (22)

5.6.2结构分析 (23)

5.6.3受力分析 (24)

5.6.4机-4齿轮齿面接触疲劳强度的校核 (25)

5.6.5机-4直齿圆柱齿轮齿根弯曲疲劳强度的校核 (26)

5.7双联齿轮的设计计算与校核 (26)

5.7.1双联齿轮的结构分析 (27)

5.7.2双联齿轮齿面接触疲劳强度的校核 (28)

5.7.3双联齿轮齿根弯曲疲劳强度的校核 (29)

5.8四联齿轮的参数计算 (30)

5.9机-2过渡轴的设计计算 (30)

5.9.1轴的材料及热处理 (30)