mgyb2x125型采煤機(jī)截割部減速器的設(shè)計(jì)畢業(yè)論文-在線瀏覽
2025-08-06 14:26本頁(yè)面
【正文】 ；齒輪；行星輪MG2125/250WD Drum shearer cutting the Department of DesignAbstract：Coal mining machine is the important equipment in coal mining, is one of the important equipment to achieve coal production mechanization and modernization. Therefore, it has important effects on the improvement of the efficiency of coal mining. At present, the design of coal mining machine has developed quite perfect, but pared with domestic coal mining machine technology and abroad is still relatively backward. This design is mainly on the cutting part of shearer reducer design and improvement, the main contents of the research on Shearer background, design and the design of reducer of the total transmission scheme, the transmission parameters. And the gear, shaft and other parts of the planet mechanism. Many of the problems found in the process of design, but also solve a lot of problems. Through the continuous improvement of the reducer, the performance of the shearer has been greatly improved, the tail coal industry services so as to better, make the economy of our country develop more quickly.Key words： Shearer； Cutting Unit； Gear； Planetary Gear目錄第1章 緒 論 1 1。煤炭工業(yè)機(jī)械化是指采掘、支護(hù)、運(yùn)輸、提升的機(jī)械化。隨著采煤機(jī)械化的發(fā)展，采煤機(jī)是最主要的采煤機(jī)械。采煤機(jī)的工作環(huán)境復(fù)雜，一旦出現(xiàn)故障將會(huì)造成巨大的經(jīng)濟(jì)損失。因此它的結(jié)構(gòu)也變的越來(lái)越復(fù)雜，這導(dǎo)致了采煤機(jī)出現(xiàn)故障的原因也變的復(fù)雜。采煤工作主要包括：落煤、裝煤、支護(hù)、和運(yùn)輸?shù)葞讉€(gè)工序。雙筒采煤機(jī)的類型和種類很多，它的特點(diǎn)概括起來(lái)有以下幾點(diǎn)。，人工工作量降低。，每小時(shí)可生產(chǎn)600～1000t。，有手把操縱和按鈕操縱，有的還可以無(wú)線電操縱。同一時(shí)期德國(guó)研制出了刨煤機(jī)。這種采煤機(jī)與可彎曲輸送機(jī)配套，為機(jī)械化采煤的發(fā)展奠定了基礎(chǔ)。這兩項(xiàng)關(guān)鍵的改進(jìn)是滾筒式采煤機(jī)實(shí)現(xiàn)現(xiàn)代化采煤機(jī)械的基礎(chǔ)[1]。這個(gè)系統(tǒng)使煤炭生產(chǎn)進(jìn)入安全、高產(chǎn)、高效和可靠的現(xiàn)代化發(fā)展階段。上世紀(jì)70年代以來(lái)，綜合機(jī)械化采煤設(shè)備正在朝著遙控、遙測(cè)、大功率的方向發(fā)展。現(xiàn)在的綜合機(jī)械化采煤系統(tǒng)結(jié)合了自動(dòng)監(jiān)測(cè)、故障診斷、數(shù)據(jù)處理和數(shù)顯等監(jiān)控技術(shù)。，免開(kāi)缺口。滾筒采煤機(jī)的缺點(diǎn)：結(jié)構(gòu)復(fù)雜，價(jià)格昂貴，煤塊度小，粉塵多，能消耗大。、分類和組成，采高h(yuǎn)=，傾角α≤30176。，最大生產(chǎn)能力528t/h，經(jīng)濟(jì)生產(chǎn)能力249t/h。，牽引方式：液壓無(wú)級(jí)調(diào)速、銷排無(wú)鏈?zhǔn)綘恳?、擺線齒輪。，牽引電機(jī)。按照這些工序可分為普通機(jī)械化采煤、綜合機(jī)械化采煤兩種采煤方式。隨著煤炭工業(yè)的快速發(fā)展，采煤機(jī)正朝著重型化方向發(fā)展。在實(shí)際的設(shè)計(jì)過(guò)程中，發(fā)現(xiàn)了很多問(wèn)題，這樣使產(chǎn)品的性能得到進(jìn)一步提高，從而使煤炭工業(yè)的發(fā)展更加迅速。第2章 總體傳動(dòng)方案的確定：采用直齒圓柱齒輪傳動(dòng).圖 21 方案一（1）能保證瞬時(shí)傳動(dòng)比的恒定。（3）傳動(dòng)效率較高。：采用直齒錐齒輪傳動(dòng)。（2）圓錐齒輪傳動(dòng)振動(dòng)和噪聲都比較大。通過(guò)對(duì)兩傳動(dòng)方案的優(yōu)缺點(diǎn)進(jìn)行比較，方案一整體結(jié)構(gòu)簡(jiǎn)單，承載能力較大，傳動(dòng)效率較高，空間體積較小，生產(chǎn)加工性較好，因此綜合考慮各方面因素，選定方案一為最終的設(shè)計(jì)方案。另外，電動(dòng)機(jī)產(chǎn)品型號(hào)已經(jīng)系列化、標(biāo)準(zhǔn)化，裝機(jī)功率可以根據(jù)實(shí)際需要選擇。 (32)式中：－軸承效率，－齒輪嚙合效率。代入?yún)?shù)得各軸的輸入轉(zhuǎn)矩為：第4章 齒輪嚙合
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