薄煤層采煤機(jī)總體方案畢業(yè)設(shè)計(jì)及截割減速器設(shè)計(jì)
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- 薄煤層采煤機(jī)總體方案畢業(yè)設(shè)計(jì)及截割減速器設(shè)計(jì)
摘要
薄煤層采煤機(jī)用于采高低于130mm的煤層。由于有些煤層的厚度太低普通采煤機(jī)難以進(jìn)行正常開采，影響采煤的效率。對(duì)一些薄、厚煤層并存的煤礦,由于薄煤層開采速度緩慢,使其下部的中厚煤層長(zhǎng)期得不到及時(shí)開采,以至影響工作面的正常接替,而有的就只能被迫丟失一些薄煤層資源。隨著大批煤礦中、厚煤層的資源開采比較多,使得資源越來越少,所以薄煤層的開采已列入日程。因此,研制適合的薄煤層采煤機(jī),以適應(yīng)不同的煤層結(jié)構(gòu),提高薄煤層采煤的工作效率是當(dāng)務(wù)之急。
雖然薄煤層采煤機(jī)的型號(hào)、規(guī)格有許多,但它的各主要組成部分大同小異，合理選擇薄煤層采煤機(jī)的截割部的參數(shù)，可以改善其工作性能和減少采煤比能耗。選擇這個(gè)題目就是要進(jìn)一步熟悉薄煤層采煤機(jī)各部分的工作原理，對(duì)其進(jìn)行更好的改進(jìn)，并對(duì)它的截割部減速器進(jìn)行細(xì)致分析設(shè)計(jì)，使其耐用并且省時(shí)省力容易裝修，使其在工作中能夠有更好的經(jīng)濟(jì)效益。對(duì)于現(xiàn)在使用較為廣泛的薄煤層采煤機(jī)的減速器中存在的錐齒輪，影響電動(dòng)機(jī)的安放和使用壽命，針對(duì)此處進(jìn)行改進(jìn)。
關(guān)鍵詞：薄煤層采煤機(jī)；截割機(jī)構(gòu)；減速器。
Abstract
For now the wider use of thin seam Shearer reducer in the bevel gear, horn and placed the motor life, for improvement here.Shearer for the thin seam-less than 130 mm of high coal seam. As some of the coal seam thickness of ordinary low Shearer difficult to carry out normal exploitation, impact on the efficiency of coal mining. For some thin, the coexistence of thick coal seam, thin due to the slow pace of coal mining, to the lower part of the thick coal seam in the long-term not promptly mining, as well as affect the normal face to succeed, but some will be forced to lose some of the Thin seam resources. With a large number of coal mines in the thick seam of resource exploitation more, making fewer and fewer resources, the exploitation of thin seam has been included in the agenda. Therefore, the development of the thin seam for Shearer to adapt to different seam structure, improve the thin seam of coal mining efficiency is imperative.
Although Shearer thin seam of models, specifications have many, but it's the major component of the same, a reasonable choice Shearer thin seam of cutting the Department of parameters, can improve their work performance and reduce power consumption than coal mining. Choose this subject is to further thin seam Shearer familiar with the different parts of the working principle, to better improve, and its cutting reducer a detailed analysis of the design, durability and its time-saving easy decoration, To work to have better economic returns.
Key words: thin seam Shearer; cutting; reducer。
目錄
前言…………...........................................................................................................1
1緒論………………………………………………………………………………3
1.1國內(nèi)外采煤機(jī)械的發(fā)展及其現(xiàn)狀…………………………………………… 3
1.2 薄煤層采煤機(jī)的分類及其特點(diǎn)……………………………………………... 4
1.3 薄煤層采煤機(jī)在我國的應(yīng)用情況…………………………………………... 4
1.4 薄煤層采煤機(jī)的優(yōu)點(diǎn)及其局限性…………………………………………... 6
1.5 薄煤層采煤機(jī)設(shè)計(jì)的目的及意義…………………………………………... 7
2薄煤層采煤機(jī)的總體結(jié)構(gòu)方案的設(shè)計(jì)………………………………………… 8
2.1 薄煤層采煤機(jī)的主要技術(shù)參數(shù)的確定……………………………………... 8
2.2實(shí)現(xiàn)采煤機(jī)基本功能的結(jié)構(gòu)方案設(shè)計(jì)…………………………………….. 11
2.3實(shí)現(xiàn)采煤機(jī)輔助功能的結(jié)構(gòu)方案………………………………………….. 12
2.4 小結(jié)………………………………………………………………………… 16
3截割部減速器的具體設(shè)計(jì)說明………………………………………………. 21
3.1電動(dòng)機(jī)的選擇………………………………………………………………... 21
3.1.1電動(dòng)機(jī)功率的確定………………………………………………………. 21
3.1.2電動(dòng)機(jī)型號(hào)的確定………………………………………………………. 21
3.2傳動(dòng)裝置的運(yùn)動(dòng)和動(dòng)力參數(shù)計(jì)算…………………………………………. 21
3.2.1傳動(dòng)比的分配……………………………………………………………. 21
3.2.2根據(jù)傳動(dòng)比的分配查書機(jī)械系統(tǒng)設(shè)計(jì)選擇齒輪齒數(shù)………………….. 22
3.2.3各軸功率、轉(zhuǎn)速和轉(zhuǎn)矩的計(jì)算………………………………………….. 22
3.3齒輪部分設(shè)計(jì)………………………………………………………………. 23
3.3.1電動(dòng)機(jī)輸出部分齒輪傳動(dòng)計(jì)算…………………………………………. 23
3.3.2減速器部分齒輪傳動(dòng)計(jì)算………………………………………………. 31
3.4軸的設(shè)計(jì)……………………………………………………………………. 38
3.4.1變速箱低速軸的設(shè)計(jì)及強(qiáng)度校核………………………………………. 38
3.4.2變速箱中間軸的強(qiáng)度校核………………………………………………. 44
3.4.3變速箱高速軸的強(qiáng)度校核………………………………………………... 49
3.4.4變速箱外高速軸的強(qiáng)度校核……………………………………………. 54
3.4.5變速箱外低速軸的強(qiáng)度校核……………………………………………. 59
4整體性驗(yàn)算……………………………………………………………………. 64
4.1穩(wěn)定性的計(jì)算………………………………………………………………. 64
4.2 穩(wěn)定性的評(píng)價(jià)指標(biāo)………………………………………………………… 64
4.3 穩(wěn)定比………………………………………………………………………. 65
4.4 生產(chǎn)能力的驗(yàn)算……………………………………………………………. 66
5結(jié)論…………………………………………………………………………….. 68
致謝……………………………………………………………………………… 69
參考文獻(xiàn)…………………………………………………………………………. 70
附錄A 譯文……………………………………………………………………… 71
附錄B 外文文獻(xiàn)………………………………………………………………… 76 ...
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