桥式起重机小车运行机构设计

目录

摘要 (4)

ABSTRACT (5)

0引言 (7)

1起重机介绍 (7)

1.1起重机的定义 (7)

1.2起重机工作原理 (8)

1.3起重机的类型及特点 (10)

1.4起重机的发展状况 (11)

1.4.1国内起重机机械发展状况 (11)

1.5发展趋势 (13)

1.5.1模块化和组合化 (13)

1.5.2大型化和专业化 (14)

1.5.3自动化和智能化 (15)

1.5.4成套化和系统化 (16)

1.5.5轻型化和多样化 (17)

1.5.6新型化和实用化 (18)

2桥式起重机的介绍 (19)

2.1桥式起重机的分类 (19)

2.1.1通用桥式起重机 (19)

2.1.2专用桥式起重机 (20)

2.1.3电动葫芦型桥式起重机 (21)

2.2桥式起重机的组成和特点 (22)

2.2.1桥式起重机小车 (23)

2.2.2桥式起重机小车运行机构 (28)

2.3 我的毕业设计中的内容 (28)

2.3.1桥式起重机的主要参数 (28)

2.3.2这次设计中的桥式起重机的用途和结构特点 (29)

3小车运行机构设计计算 (31)

3.1起重机小车运行机构的计算 (31)

3.1.1计算条件 (31)

3.1.2运行阻力的计算 (32)

3.1.3电动机的选择 (33)

3.1.4打滑验算 (36)

3.1.5减速器计算 (37)

3.1.6制动器的选择 (38)

3.1.6.1制动惯性力矩Ma (38)

3.1.6.2最小静阻力矩Mjmin (39)

3.1.7联轴器的选择 (39)

3.1.7.1联轴器传递扭矩的确定 (39)

3.1.8缓冲器的选择 (40)

3.2减速器的设计 (41)

3.2.1减速器各轴的传递功率、转速、转矩 (41)

3.2.2高速级齿轮的计算 (42)

3.2.3中速级齿轮的计算 (47)

3.2.4低速级齿轮的计算 (52)

3.2.5齿轮的结构形式 (57)

3.2.6减速器箱体及附件 (57)

3.2.6.1减速器箱体的设计 (57)

3.2.6.2减速器附件设计 (58)

4结论 (59)

5设计总结 (60)

6参考文献 (61)

7英文资料 (62)

8译文 (72)

9原文说明 (85)

摘要

起重机的出现大大提高了人们的劳动效率，以前需要许多人花长时间才能搬动的大型物件现在用起重机就能轻易达到效果，尤其是在小范围的搬动过程中起重机的作用是相当明显的。在工厂的厂房内搬运大型零件或重型装置桥式起重机是不可获缺的。

桥式起重机小车主要包括起升机构、小车架、小车运行机构、吊具等部分。其中的小车运行机构主要由减速器、主动轮组、从动轮组、传动轴和一些连接件组成。

此次设计的桥式起重机是水电站桥式起重机，安装于丰满水电站扩建工程厂房内，用于水轮发电机组及其附属设备的安装和检修工作。水电站内设备一般都是大中型设备，对桥式起重机的载荷要求较高，所以对减速器性能要求较高。

关键词：桥式起重机，小车运行机构，减速器，

Design of the bridge type hoist crane Car movement

organization

ABSTRACT

The invention of crane has greatly increased people’s work efficiency.People can use crane to handle with huge articles,which used to be taken a long time to do, especially in a small area.The bridge type hoist crane is required to handle with huge accessory or huge device.

The bridge type hoist crane car consists of protmoted organization，the car frame，the car movement organization，hoisting mechanisms and so on. Its operation structure is composed of reducer，the driving wheel group，the driven wheel group，the transmission shaft and some connect fitting. The core of this structure is the design of the reducer.

This bridge type hoist crane is be used to the hydroelectric power station. It is installed in the expanded workshop of Fengman water and electricity station.It is used to installing,examining and repairing the water-turbine generator set and its accessorial equipments.the equipments in the water and electricity station are large or medium-size. These equipments have a high request on the load of bridge type hoist crane , so they also have a high request on the capability of the reducer.