大型翻转提升机构的结构设计

大型H钢翻转提升机构设计

摘要

我国现如今的工业水平不断地发展，H钢运用的领域越发广泛，在提升和翻转那些笨重、体积很大零件不能只靠人力去完成，为了提高生产效率需要设计出一种设备来解决此问题。在设计的同时需要考虑到传动装置变松以及润滑等问题。

本文首先对翻转机提升类型从其特点进行分析到选择，选择出链式翻转机构和液压式提升装置，对H钢翻转工作进行分析，设计出符合要求的元器件如轴，齿轮，皮带等，对部分件进行校核，为了元件相互协调配合，设备运行平稳。最后设计出液压与电气系统组合，从而形成一套完整的工作体系从上升正反翻转、制动、下降。

提升机构选择形式为液压式，优点是重量轻、容易实现调速、使用寿命长。缺点是油液对密封装置要求比较严苛容易泄露。翻转机构使用链式传动，优点是摩擦性好、成本低。缺点不耐冲击、质量大。

关键词H钢；翻转机构；提升机构

Design of Large Scale H Steel Lifting Mechanism

Abstract

China is now the level of industrial development, H steel used more and more widely in the field, lifting and turning of the heavy and large parts can not only rely on manpower to complete, in order to improve the production efficiency we need to design a device to solve this problem. At the same time the design should take into account the loose gear and lubrication problems.

Based on the analysis of the types of hoisting machine turn to choose from its features, choose a chain turnover mechanism and a hydraulic lifting device for H steel turning work analysis, designed to meet the requirements of the components such as shaft, gear, belt and so on, to check the part, as the components of coordination, equipment running smoothly. Finally, the hydraulic and electrical system is combined to form a complete system of work, from rising, reverse, braking and descending.

The selection of lifting mechanism is hydraulic, with the advantages of light weight, easy realization of speed control and long service life. The disadvantage is that the oil on the sealing device requirements are more stringent, easy to leak. The turnover mechanism adopts chain type transmission, and has the advantages of good friction and low cost. Disadvantages, no impact, high quality.

Keywords H steel, turnover mechanism, lifting mechanism

目录

摘要...................................................................................................................... I Abstract ............................................................................................................... II

第1章绪论 (1)

1.1 课题研究的背景及意义 (1)

1.2 国内外研究现状 (1)

1.2.1 国外发展现状 (1)

1.2.2 国内发展现状 (2)

1.3 本课题的研究内容 (4)

第2章翻转提升机构的总体设计 (5)

2.1 翻转和提升机构采用形式的确定 (5)

2.1.1 翻转机构的确定 (5)

2.1.2 提升机构的确定 (7)

2.2 H钢翻转的工作原理 (9)

2.3 大型H钢翻转提升机构的简图 (9)

2.4 本章小结 (10)

第3章翻转提升机构的结构设计 (11)

3.1 链条及链轮的选择设计 (11)

3.1.1 链条的设计选择 (11)

3.1.2 链轮的设计选择 (12)

3.1.3 滑轮的设计选择 (13)

3.1.4 润滑油的选择 (14)

3.2 电机的选择 (14)

3.3 带传动及齿轮的设计及计算 (15)

3.3.1 皮带传动的设计 (15)

3.3.2 V带轮的设计 (17)

3.3.3 皮带张紧装置的选择 (19)

3.4 轴的结构设计与校核 (19)

3.4.1 轴的设计计算 (19)

3.4.2 滚动轴承的校核 (21)

3.4.3 键的校核 (22)

3.5 本章小结 (22)

第4章翻转提升机构的液压与电气的系统设计 (23)

4.1 机构液压系统的设计 (23)