机液联合张紧装置

机械论文编号:JX329  所有图纸,任务书.论文字数:24407.页数:64

目录

第1章概述 .............................................................1
1.1 张紧装置综述 .......................................................1
1.1.1 输送带的伸长或延伸 ...............................................1
1.1.2拉紧行程 ..........................................................1
1.1.3手动拉紧装置 ......................................................2
1.1.4自动拉紧装置 ......................................................2
1.2 新型机液张紧装置 ...................................................3
1.3 液压传动的特点..................................................... 4
1.3.1优点.............................................................. 4
1.3.2缺点....................................................... .......4
第2章主要设计参数及方案确定........................................... 5
2.1 主要设计要求 .......................................................5
2.2 方案确定 ...........................................................5
2.2.1参考方案一 ........................................................5
2.2.2参考方案二 ........................................................7
2.2.3参考方案三 ........................................................8
2.2.4方案对比.......................................................... 9
2.3 确定系统主要参数................................................... 10
第3章确定液压泵及配套电机 .............................................11
3.1 液压泵的选用....................................................... 11
3.2电动机的选用 ........................................................16
第4章确定液压系统元件、辅件........................................... 19
4.1 选择液压控制阀型号 .................................................19
4.2液压油路板的结构 ....................................................21
4.3确定液压辅件 ........................................................28
4.3.1蓄能器的选用...................................................... 28
4.3.2过滤器的选用 ......................................................33
4.3.3压力表及测压管路选用 ..............................................36
4.3.4液压管路的设计 ....................................................37
第5章液压缸设计....................................................... 39
5.1液压缸的类型和安装形式.............................................. 39
5.2 液压缸主要零部件结构、材料和技术要求 ...............................40
5.2.1 缸筒与缸盖....................................................... 40
5.2.2活塞.............................................................. 43
5.2.3活塞杆：.......................................................... 44
5.4活塞杆的导向套、密封和防尘 ..........................................47
5.5排气阀.............................................................. 48
5.6油口................................................................ 49
5.7密封圈、防尘圈的选用。 ..............................................50
5.7.1O形密封圈......................................................... 50
5.7.2防尘圈的选用...................................................... 51
5.8 液压缸的安装方法 ...................................................51
5.9液压缸的主要性能参数 ................................................51
5.10 液压绞车的选用.................................................... 57
5.11液压站的设计....................................................... 60
5.11.1液压油箱的设计 ...................................................60
5.11.2  液压油箱的外形尺寸 .............................................63
5.11.3  液压油箱的结构设计............................................. 63
第6章液压系统的安装、使用和维护 .......................................75
6.1 液压系统的安装、试压和调试......................................... 75
6.1.1 液压元件的安装 ...................................................75
6.1.2 管路的安装与清洗 .................................................77
6.2 试压............................................................... 78
6.3 液压系统的使用和维护 ...............................................78
总结................................................................... 80
致谢................................................................... 81

摘   要
     带式输送机是以输送带作为牵引机构和承载机构的一种连续运输机械，它是输送散状物料的主要设备之一。在带式输送机成本构成中，输送带占有的比重很大，大型带式输送机一般在 50% 左右，因此从成本方面考虑，延长输送带的使用寿命就很有必要。张紧装置作为带式输送机中的重要组成部分，其性能的好坏直接影响带式输送机的使用寿命和性能。
关键词:    传动原理;     输送带张力;      拉紧装置

Abstract

obliquity of rigid sliding guide of cage, the paper offers the concretescheme for designing the numerical system for measuring the obliq-uity of rigid sliding guide of cage based on AT89S52 single-chipprocessor of ATMEL company, introduces the realization to the eachkey step of system and the matters need to attention, and gives detailednarration on storing and reading the data in CF card of system.
【Descriptors】 Rigid sliding guide of cage  Obliquity  AT89S52single-chip processor  CF card  Tandem communication