半轴套管拆装机毕业设计

摘要

随着汽车工业的发展，汽车保有量的迅速增加，对汽车的性能要求日益增大，导致对汽车维修设备的需求量逐渐加大。在汽车运动过程中，由于发生颠簸等事故，会造成后桥壳中半轴套管的损伤，开发具有自主知识产权的半轴套管拆装机也就成了我国汽车维修工业中的一部分重要课题，而且对提高我国专用机器的的设计水平，带动我国维修车辆的自主设计开发具有重要意义。随着科技的迅猛发展，我们必须加快先进性设计理念，并应用到实践。因此，高科技半轴套管拆装机作为重型汽车修理的必备工具，是具有发展前景的车辆修理专用设备之一。

文中通过大量调研，改装了一种以手动操作为基础，额定压力为20WPa的高压维修设备。文中主要进行了由液压泵、液压缸、电机、千斤顶、阀体、车架附属装置组成的液压系统的设计。最后，对改装完成后的半轴套管拆装机进行了必要的操纵性、安全性和稳定性等主要整车性能的计算分析，计算结果表明整车性能满足要求。

关键词半轴套管；拆装机；液压泵；液压缸

Abstract

Along with the development of the automotive industry,autopossession of the rapid increase of automobile, the performance requirements of enlarging, lead to the vehicle maintenance equipment demand increase gradually. In vehicle movement process, because such accidents occurred turbulence, can cause rear axle shell in half axle sleeve tube damage, develop with independent intellectual property rights of half axle sleeve tube dismantle installed also became partofChina'sautomobilemaintenance industry important topic, and to enhance our country's special machine, the design level of drive our country repair vehicles independent design development to have the important meaning. Along with the rapid development of science and technology, we must accelerate the advanced design idea, and applied to practice. Therefore, high-tech half axle sleeve pipe down as heavy vehicle repair installed an essential tool, is to have the prospects of development of special equipment repair vehicles.

In this paper, through the plenty of investigation, to modify a kind of manual operation as the foundation, pressure rated for 20WPa high-pressure maintenance equipment. This paper mainly made by hydraulic pump and hydraulic cylinder, motor, jack, body, frame, accessory device consisting of hydraulic system design. Finally, after completion of modification of half axle sleeve tube dismantle installed through the necessary control, safety and stability etc., the main vehicle performance of calculation and analysis, the calculation results show that the vehicle performance meet the requirements.

Keywords half axle sleeve pipe；Demolition installed；Hydraulic pump；Hydraulic cylinder

目录

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1.1 课题研究前景............................................................................ 错误！未定义书签。

1.2 课题研究现状 (1)

1.3 课题研究的目的和意义 (2)

1.4 设计的主要内容 (3)

第2章半轴套管拆装机简介 (4)

2.1 半轴套管拆装机结构 (4)

2.2 工作原理 (4)

2.3 使用方法 (4)

2.4 注意事项 (5)

第3章液压缸设计 (7)

3.1 总体设计方案 (7)

3.2 工况分析 (7)

3.3 缸体分类及特点 (7)

3.4 活塞杆构造 (8)

3.5 基本参数的确定 (8)

3.5.1 工作负载的确定 (8)

3.5.2 缸体内径D的计算 (9)

3.5.3 工作速度及速比计算 (9)

3.5.4 活塞杆直径的计算 (10)

3.5.5 最小导向长度的计算 (10)

3.5.6 缸体壁厚的计算 (11)

3.5.7 活塞杆强度校核 (11)

3.6 主要连接处的强度校核 (12)

3.6.1 焊点应力的计算与校核 (12)

3.6.2 缸盖连接螺栓的强度校核 (13)

第4章油路系统的设计计算 (15)

4.1 阀体的分类及要求 (15)

4.1.1 按用途分 (15)

4.1.2 按控制方式分 (15)

4.1.3 按连接方式分 (15)

4.2 对液压阀的基本要求 (16)

4.3 方向控制阀的选取 (16)

4.4 调速阀的选取 (16)

4.5 溢流阀的选取 (17)

4.6 油路的计算 (17)

4.6.1 油路压力损失分析 (17)

4.6.2 油路压力损失计算 (18)

4.7 油路系统原理图设计 (19)