螺旋输送式混凝土湿式喷射机

机械论文编号:JX266 所有图纸,外文翻译。论文字数:33760.页数:97

目    录
1 绪论.....................................................................1
1.1混凝土喷射机的概述..................................................... 1
1.2 混凝土喷射机的种类和特点.............................................. 2
1.3湿式混凝土喷射机种类和特点 .............................................7
1.4湿式混凝土喷射机推广应用中需解决的一些问题 .............................11
1.5 湿式混凝土喷射机的发展趋势 ............................................11
1.6设计混凝土喷射机的意义 .................................................12
2 方案的确定  .............................................................14
2.1设计总则 ...............................................................14
2.2主要参数............................................................... 14
2.3选择方案 ...............................................................15
2.3.1喷射混凝土工艺的选择 .................................................15
2.3.2螺旋输送式混凝土湿喷机的工作原理 .....................................17
2.3.3螺旋输送式混凝土湿式喷射机系统功能................................... 17
2.3.4湿式混凝土喷射机的工作过程 ...........................................17
2.3.5湿式混凝土喷射机动力源............................................... 19
2.3.6结论................................................................. 20
3 风路系统的设计与计算  ...................................................20
3.1螺旋湿喷机的喷射能力(kg/h) .............................................20
3.2输送管道的换算长度的计算 ...............................................21
3.3喷嘴出口处空气速度的计算 ...............................................22
3.4送混合料所需压风耗量的计算 .............................................23
3.5送管内径d的计算 ........................................................23
4 湿喷机传动系统总体设计与计算  ...........................................24
4.1传动系统的确定及电动机的选择 ...........................................24
4.1.1螺旋湿喷机的螺旋直径D................................................ 25
4.1.2电动机选择 ...........................................................27
4.2传动装置的参数计算 .....................................................29
4.2.1总传动比的计算 .......................................................29
4.2.2传动装置运动参数的计算............................................... 29
5 湿喷机的齿轮传动的计算...................................................32
5.1第一级齿轮传动的计算................................................... 32
5.2第二级齿轮传动的计算 ...................................................35
5.3第三级齿轮传动的计算................................................... 38
5.4齿轮参数列表 ...........................................................41
6 湿喷机的轴的刚度计算.....................................................42
6.1各轴的最小轴径的计算................................................... 42
6.2减速器各级传动轴的设计................................................. 43
6.2.1传动轴的径向尺寸的设计............................................... 43
6.2.2传动轴的轴向尺寸的设计............................................... 43
6.3各级传动轴的轴承的设计 .................................................44
6.4各级传动轴的强度校核................................................... 44
7 轴承的强度校核 ..........................................................61
7.1 I轴上的轴承........................................................... 61
7.2 II轴上的轴承 ..........................................................62
7.3 III轴上的轴承......................................................... 63
7.4 IV轴上的轴承.......................................................... 65
8 键的强度校核.............................................................67
8.1 各轴上键的强度校核 ....................................................67
8.2 联轴器上键的强度校核 ..................................................68
9 螺旋喂料系统的设计计算 ..................................................69
9.1螺旋湿喷机的螺旋直径D ..................................................69
9.2螺旋轴的受力与强度计算 .................................................71
10喷射机其他各系统的介绍...................................................74
10.1电气控制系统 ..........................................................74
10.1.1 控制电路........................................................... 74
10.1.2 单片机控制系统设计 .................................................75
10.2速凝剂计量添加系统 ....................................................76
10.2.1液体速凝剂的选择 ....................................................76
10.2.2速凝剂泵的选择...................................................... 77
10.3行走系统与固定作业.................................................... 78
10.4湿式混凝土喷射机物料配比 ..............................................78
10.4.1影响物料配比的因素.................................................. 78
10.4.2合理配比的计算 ......................................................80
结  论 ….. ...............................................................81
参考文献...................................................................82
致  谢 ....................................................................83
附录： 混凝土喷射机在我国的应用与发展......................................84
英文原文.................................................................. 84
中文译文.................................................................. 91

摘   要

     混凝土喷射机是利用压缩空气将混凝土沿管道连续输送，并喷射到施工面上去的机械。分干式喷射机和湿式喷射机两类，前者由气力输送干拌合料，在喷嘴处与压力水混合后喷出；后者由气力或混凝土泵输送混凝土混合物经喷嘴喷出。广泛用于地下工程、井巷、隧道、涵洞等的衬砌施工
螺旋式混凝土喷射机由螺旋喂料器将料斗卸下的干拌合料均匀地推送至吹送室，罐内装搅拌好的混凝土。然后由螺旋喂料器空心轴和吹送管引入的压缩空气将干拌合料沿输送管吹送至喷嘴。
螺旋式湿喷机特点：
(1) 结构螺旋式喷射机由传动机构、料斗、机体、行走装置、输送软管和喷枪组成。
(2) 优点螺旋式喷射机具有体积小、重量轻、结构简单、上料点低、操作方便、出料均匀等优点。
(3) 缺点螺旋式喷射机粉尘浓度大、螺旋叶片磨损快, 需经常更换易损件。
本论文首先概括性地介绍了混凝土喷射机的发展历史、工作原理，并分析了现有机型的优缺点，接着确定本次设计的机型。其次结合任务书的参数设计三级圆柱直齿减速器、输料管、旋转体等一些主要的部件，对部分要求比较高的零件进行强度校核。

关键词：喷射机； 锚喷支护； 减速器。

ABSTRACT

Shotcrete Machine is the use of compressed air jet will be along the pipeline for transportation of concrete and blasting to the surface to the construction machinery. The dry and wet jet two types of jet aircraft, conveying gas from the former dry mixing materials, in the nozzle and pressure mixture of water emitted from the latter by the gas or to transport concrete pump nozzle emitted by the concrete mixture. Widely used in underground engineering, Roadway, tunnels, culverts, such as the lining construction.
   Jets from the spiral concrete spiral feed-hopper to discharge dry evenly mixing materials sent to the push Chuisong room, the tank with a good mixing of concrete. Feeding then spiral-Chuisong hollow shaft and the introduction of the compressed air will dry mixing materials along the pipeline blown sent to the nozzle.
   Spiral wet spraying machine features:
(1) spiral structure of the jet drive, hopper, body, walking devices, transmission of the hose and spray gun. (2) advantages of spiral jet with small size, light weight, simple structure, the low point on the material, easy to operate, the advantages of a uniform material. (3) shortcomings spiral jet dust concentration, spiral leaves and wear quickly, often need to replace wearing parts.
   This paper first general introduction to the history of the development of concrete Jets, principle and analysis of the advantages and disadvantages of the current models, and then determine the design of this model. This was followed by the combined task of the design parameters of three cylindrical straight teeth reducer, the loser of the material, such as rotation of some of the majorcomponents of some parts of the relatively high demand for strength checking.

Keywords: Shotcrete Machine; Shotcreting Support; Reducer