混凝土噴射機設計

機械論文編號:JX339  所有圖紙,任務書,外文翻譯。論文字數:19500.頁數:68
目  錄
1概述……………………………………………………………....1
2方案確定………………………………………………………….4
    2.1設計總則………………………………………………………4
    2.2已知參數………………………………………………………4
2.3選擇方案…………………………………………………………….4
       2.3.1噴射混凝土工藝的選擇......................4
       2.3.2 濕式混凝土噴射機機構型式的選擇.............6
       2.3.3 濕式混凝土噴射機動力源及傳動裝置的選擇.......10
       2.3.4 濕式混凝土噴射機轉子結構的選擇……………………11
       2.3.5 濕式混凝土噴射機結合板和襯板的選擇………………11
  2.3.6 速凝劑添加系統的選擇...........................11
3濕噴機的風路系統計算………………………………............17
3.1轉子式料腔容積的計算………………………………….........17
    3.2 輸送管道的換算長度的計算…………………………………17
    3.3 噴嘴出口處空氣速度的計算……………………………………18
    3.4輸送混合料所需壓風耗量的計算………………………………20
    3.5輸送管內徑d的計算……………………………………………..20
4濕噴機的傳動系統總體計算………………………………...21
    4.1傳動系統的確定及電動機的選擇…………………………………21
    4.2傳動裝置的參數計算………………………………………………21
        4.2.1總傳動比的計算…………………………………………21
4.2.2傳動裝置運動參數的計算…………………………………22
5濕噴機的齒輪傳動的計算…………………………………..24
    5.1第一級齒輪傳動的計算............................24
    5.2第二級齒輪傳動的計算………………………………………….27
    5.3第三級齒輪傳動的計算……………………………………………30
    5.4齒輪參數列表………………………………………………………33
6濕噴機的軸的剛度計算………………………………………34
    6.1各軸的最小軸徑的計算……………………………………………34
    6.2減速器各級傳動軸的設計………………………………………..34
        6.2.1傳動軸的徑向尺寸的設計…………………………………34
        6.2.2傳動軸的軸向尺寸的設計………………………………….35
    6.3各級傳動軸的軸承的設計………………………………………….35
    6.4各級傳動軸的強度校核…………………………………………….35
7軸承的強度校核………………………………………………...52
    7.1 I軸上的軸承校核…………………………………………52
    7.2 II軸上的軸承校核…………………………………………53
    7.3 III軸上的軸承校核………………………………………54
    7.4 IV軸上的軸承校核…………………………………………56
8鍵的強度校核……………………………………………………58
    8.1 各軸上鍵的強度校核………………………………………58
8.2 聯軸器上鍵的強度校核…………………………………………..59
結論…………………………………………………………………....60
參考文獻………………………………………………………………….61
致謝…………………………………………………………. …………62
附錄：
關于傾角煤層挖掘巷道的錨桿支護的研究…………. ………………63

摘   要

     濕式混凝土噴射機目前的主導機型是轉子式混凝土濕噴機，它具有出料均勻、結構緊湊、作業粉塵濃度低、回彈少、噴射混凝土強度高等優點，廣泛地應用于礦山錨噴支護、隧道工程、建筑工地等領域。其工作原理是：電動機通過聯軸器，驅動減速器，減速器的輸出軸既帶動轉子旋轉，又帶動料斗上的撥料器旋轉，混凝土拌合料經料斗落入旋轉的轉子料腔內，轉子轉過后，壓縮空氣與料腔進風口相通，在壓氣的作用下，物料通過出料彎頭和輸料管被輸送到噴嘴，并在噴嘴處加水噴射出去。
本機型的設計取消了支撐架，輪軸直接固定在減速器上，減輕了重量；轉子的料腔采用了新型的呈梯形、圓角、多料腔結構，使得進風連續，噴射脈沖小。
    本論文首先概括性地介紹了混凝土噴射機的發展歷史、工作原理，并分析了現有機型的優缺點，接著確定本次設計的機型。其次結合任務書的參數設計三級圓柱直齒減速器、輸料管、旋轉體等一些主要的部件，對部分要求比較高的零件進行強度校核。

關鍵詞：噴射機； 錨噴支護； 減速器。

ABSTRACT

The leading model of the concrete sprayer is rotor concrete damp sprayer, it has some good characters, such as the uniformity of material coming out, compact structure, lower dust, less reflectance and higher shotcreting strength. it is widely used in mine shotcreting support, tunnel construction and building construction. Its working principle is: the electromotor drives the reducer by the joint slack, the output shaft of the reducer not only drives the rotor, but also drives the implement of dialing material of the hopper. The concrete falls through the hopper into the material cavity of the rotor, when the rotor rotates, the compressed air blows into the material cavity, on the action of the compressed air, material is sent to muzzle through the elbow of output material and transportation tube, and sprayed out with water at the muzzle.
The machine is canceled the underprop, wheel and axle are directly fixed on the reducer, so the machine is lightened its weight; the material cavity of the rotor is adopted a new style, such as trapeziform, roundness, multi-material cavities, it makes series of blowing, less spraying pulse.
This paper firstly synoptically introduces the development history of rotor concrete damp sprayer, working principle, and analyzes the advantage and the disadvantage of the present models, then confirms the model of this design. Secondly according to the parameters of assignment prospectus, designs the main parts, such as three-level transmission of spur gears reducer, transportation tube, and rotor, and proofreads the stress of some upper request parts.
Keywords: Concrete Sprayer; Shotcreting Support; Reducer