【正文】 目前，國(guó)際主要刮板輸送機(jī)生產(chǎn)廠商廣泛采用真空電爐冶煉的低碳優(yōu)質(zhì)多合金齒輪鋼。刮板輸送機(jī)的傳動(dòng)特點(diǎn)是低速重載、耐沖擊、體積小但潤(rùn)滑和散熱差。⑶這種鍛造的寬體扁平鏈加大了鏈環(huán)的接觸面積，可在提高鏈環(huán)強(qiáng)度的同時(shí)減少磨損，有助于保持鏈環(huán)的剛性。在質(zhì)量檢測(cè)方面，對(duì)啦伸斷口利用掃描電纜進(jìn)行斷口分析；采用圓環(huán)鏈預(yù)拉伸強(qiáng)化工藝，極大提高了承載能力和疲勞強(qiáng)度。圖4四節(jié)式槽幫鋼設(shè)計(jì)及磨損輪廓中部槽的另一種結(jié)構(gòu)形式是上下槽分體重疊式，這種形式可以根據(jù)上下槽受載情況和失效狀況不同進(jìn)行不同結(jié)構(gòu)設(shè)計(jì)與選材，且上槽更換容易，有利于提高整機(jī)強(qiáng)度與壽命。如德國(guó)某公司通過(guò)研究和開(kāi)發(fā)，撥那個(gè)在井下對(duì)不同斷面的中部槽進(jìn)行大量試驗(yàn)，最終發(fā)現(xiàn)，與∑形斷面槽幫相比，弧形斷面槽幫使刮板與槽幫內(nèi)側(cè)面接觸液力小，從而減小摩擦阻力，降低功率消耗，延長(zhǎng)中部槽和刮板的壽命。圖2DTP閥控充液式液力耦合器⑴可以實(shí)現(xiàn)刮板輸送機(jī)的空載啟動(dòng)和過(guò)載保護(hù)；⑵通過(guò)換水可以實(shí)現(xiàn)刮板輸送機(jī)的頻繁啟動(dòng)，而不必限制啟動(dòng)頻率；⑶通過(guò)告便液力耦合器的重也順序可以實(shí)現(xiàn)多機(jī)驅(qū)動(dòng)下的負(fù)載平衡；⑷可以實(shí)現(xiàn)慢速驗(yàn)鏈；⑸雙腔設(shè)計(jì)，結(jié)構(gòu)緊湊；功率傳遞部件無(wú)機(jī)械接觸，可靠性高。使用了這種自動(dòng)緊鏈系統(tǒng)，輸送機(jī)運(yùn)行時(shí)鏈條將始終保持最佳張緊狀態(tài)，延長(zhǎng)了鏈條的使用壽命，縮短了停機(jī)時(shí)間。其次，輸送機(jī)的長(zhǎng)度也不宜太長(zhǎng)，會(huì)降低推進(jìn)速度。近年來(lái)隨著高產(chǎn)高效集約化礦井的迅速發(fā)展，煤礦都在爭(zhēng)取實(shí)現(xiàn)一礦一井一面的高度集約化生產(chǎn)模式。 ⑵ startup time can be loaded with selfregulation。⑷ slow postmortem can be linked。英語(yǔ)翻譯英文原文Scraper conveyor of the status quo and development trend of technologyAbstract: The Face scraper conveyor of the machine and its head, tail, the central trough, ring linked, softstart devices, ponents of the technical status quo and development trend, and made China39。 ⑸ dualchamber design, pact, power transmission ponents without mechanical contact, high reliability.⑹ with water as a working fluid, safe and convenient and cheap, through pipes or water supply, drainage tube through the pump row, row of pressure from the main hydraulic motordriven cycle produced by the pilot of the portfolio directly to the valve To control the water cycle。 ⑶ achieved a scraper conveyor loaded with empty and the smooth startup。作為長(zhǎng)臂工作面的主要運(yùn)輸設(shè)備，刮板輸送機(jī)的輸送能力主要由高產(chǎn)高效礦井的生產(chǎn)能力來(lái)決定，同時(shí)也決定了刮板輸送機(jī)的發(fā)展趨勢(shì)。然后最主要的影響因素還在于關(guān)鍵元部件的技術(shù)性能和壽命。鏈輪組件是刮板輸送機(jī)的關(guān)鍵元件，其發(fā)展趨勢(shì)時(shí)提高鏈輪組件的可靠性，提高鏈輪的價(jià)格精度，改進(jìn)熱處理工藝，延長(zhǎng)鏈輪的使用壽命。⑹以清水作為工作液，安全方便而且廉價(jià)，可以通過(guò)水管或水箱供水，通過(guò)排液泵管排水，排液壓力由主電機(jī)帶動(dòng)的液力循環(huán)產(chǎn)生，通過(guò)本安型先導(dǎo)組合閥直接對(duì) 水循環(huán)進(jìn)行控制；⑺在不影響功率傳輸?shù)那闆r下，通過(guò)換水來(lái)散熱。刮板與∑形斷面和弧形斷面槽幫接觸面比較如圖3所示。該形式中部槽在SGZ880/2400型中雙鏈交叉?zhèn)刃豆ぷ髅婀伟遢斔蜋C(jī)中得到了成功應(yīng)用。1985年某公司率先制造出38mm137mm扁平鏈。如42mm的扁平鏈可以承受2855kW的裝機(jī)功率，而50mm寬體扁平鏈則可承受高達(dá)31000kW的裝機(jī)功率。為了獲得高性能齒輪傳動(dòng)裝置，需不斷提高產(chǎn)品都涉及水平和制造水平。齒輪熱處理采用計(jì)算機(jī)測(cè)控氣氛滲碳裝備，嚴(yán)格監(jiān)視爐內(nèi)溫度、碳勢(shì)，控制齒輪裝備主要零件采用數(shù)控加工中心制造，加工精度有利大幅度提高，國(guó)內(nèi)外有些公司齒輪制造精度達(dá)到相當(dāng)我國(guó)GB10009588《漸開(kāi)線齒輪加工精度》標(biāo)準(zhǔn)665級(jí)以上。齒輪材料晶間雜質(zhì)常成為疲勞裂紋萌生的根源。圖6智能輸送機(jī)鏈Blockmaster接鏈環(huán)是一種新型的用于扁平鏈立環(huán)的接鏈環(huán)如圖7所示，因其閉合長(zhǎng)度極端，安裝時(shí)無(wú)需松弛鏈條；其設(shè)計(jì)構(gòu)思新穎，可雙向安裝，不用考慮輸送方向，也不存在裝反的可能，接鏈環(huán)中部的鎖塊可避免鏈條扭結(jié)，同時(shí)也提高了接鏈環(huán)的強(qiáng)度，如42mm146mm的Blockmaster接鏈環(huán)破斷拉力達(dá)2500kN。⑵采用這種鏈條可以降低使用功率，或在功率不變的情況下，增大工作面的長(zhǎng)度，這將極大地減少開(kāi)拓工作量，減少工作面搬家次數(shù)。焊接工藝方面：采用先進(jìn)的堆焊設(shè)備，采用閃光堆焊和退貨加工工藝，成功地解決了堆焊過(guò)程中產(chǎn)生的過(guò)熱、過(guò)燒等問(wèn)題。鍛造啞鈴座的設(shè)計(jì)保證中部槽和啞鈴座不受到破壞，所以首先斷裂的總是啞鈴。為了進(jìn)一步提高使用壽命，國(guó)內(nèi)外主要生產(chǎn)廠商對(duì)中部槽外形、結(jié)構(gòu)及材料等方面有進(jìn)行了大量的研究。圖2為德國(guó)研制的DTP閥控充液式液力耦合器。該系統(tǒng)在鏈條與機(jī)頭、機(jī)尾驅(qū)動(dòng)鏈輪分離后的鏈道下方安置有張力傳感器，根據(jù)鏈條的實(shí)際張力控制張緊油缸。首先，中部槽的高度不宜太高，否則會(huì)影響裝煤效果。關(guān)鍵詞：刮板輸送機(jī)；元部件；技術(shù)現(xiàn)狀；發(fā)展趨勢(shì)。⑺ scene debugging simple, it is easy to modify the parameters online and debugging. AC motor technology the main technical characteristics ⑴ and other softstart mode pared to the full realization of electrical softstart control, scraper conveyor drive system and power supply system to maximize the simplification。 ⑶ through hydraulic coupler divisions will also reorder the multidrive can be achieved under the load balancing。s development scraper conveyor Trend.Key words: scraper conveyor with two, ponents, development trends.In recent years, with high yield and high efficiency of the rapid development of intensive mine, the coal mine in a mine to achieve a high degree of concentration of wells a production model. Face the long arm as the main transportation equipment, the scraper conveyor transport capability mainly by high yield and high efficiency of the production capacity of the mine to decide, but also determines the scraper conveyor trend of development.1 Technology statusSince the 1980s, both at home and abroad scraper conveyor to the large volume, long distance, highpower, highintensity, high reliability and long life direction. At present, the largest foreign Fullyface scraper conveyor to transport volume has reached 6000 t / h, installed power 4 800kW, distance 450 m. Domestic independent research and development of the scraper conveyor transport volume has reached 3500 t / h, installed power 3 700kW, distance 300 m. With God East, and other large coal base 400 m face the emergence of Chinamade scraper conveyor will be moving in the direction of more largescale. However, volume, distance and the increase of power by many factors. First of all, the height of the central trough should not be too high, otherwise they will be affected with coal effect. Second, the conveyor39。⑺ without affecting the power transmission ci