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翻譯部分
英文原文
1.1 The take type transports the characteristics and the application of the machine
The take type transports machine since 1795 was disheveled hair and clear,through the development of more than twocenturies,already drive electric power、metallurgy、coal、chemical engineering、mineral mountain、portetc.every trade adopts extensively.Especially the Industrial Revolution brings material,lately technical adoption for the third time lately and makes the take type transport the development of the machine to follow a new era.In now days ,whether appraise from carry、length、economy-effectiveness and so on.It can be the same train,automobile transport to match the situation as it stands,and become the first to the development of industries.
The take type transports the characteristics of the machine:
The structure is simple.Followed by belt conveyor drive pully to one drum,or idler roller components、drives、conveyors several large components.Only a dozen or more components,production can be standardized and may require portfolio assembly,the structure is very simple;
Transport the material scope extensively.Conveyor belt with wear,corrosion resistance ,oil resistance,such as fire-retardant properties,and high-resistance,low temperature,may be required to produce,which will transport all kinds of stuff,block materials,chemicals,the Health clinker and concrete;
Transport to have great capacity.Volume per hour from a few kilograms to several thousands of tons,but is uninterrupted delivery
This is the train,the automobile conveyance is too far behind to catch up;
The luck is apart from to grow.Single length of up to 10 kilometers an abroad,is very popular,in the middle reproduced without any points.
Cross-countrily the take type transports machine to often use to rub to drive a way in the center,making to transport the restriction that the length is free from the belt conveyer strength.
It is strong to the circuit adaptability.Modern belt conveyor in laying cross-country,from the trough to tube-shaped,it can be horizontal and vertical plane tumed breaking the mold conveyor or not bend the restrictions,which will rely on mountain water,and walk along the terrain,can save a lot of a tunnel,bridge infrastructure investment;
Pack to unload very convenient.Under the belt conveyor process needs,may at any point on the equipment and dump;Pipe conveyor as well.
Can also pack,unload to anticipate on the return journey segment ,carry on anti-to conveyance;
The credibility is high .As simple structure,moving parts light weight ,as long as the belt is not torn,with a life span of 10 years,metal components,as long as antirust good,for the past several decades is not a bad idea;
The operation fee is cheap.Wear parts belt conveyor idlers and only roller,conveyor longevity,a high degree of automation,use of the staff is small,per km on average less than one,the consumption of oil and electricity rarely;
Can consume low,the efficiency is high.Since moving parts as light weight,low void shipped in all non-continuous and continuous transport,Belt conveyor energy minimum,maximum efficiency;
Maintain a fee little .Belt conveyor is the only moving parts and idler pulley,belt wear is very.
Compare under,the train,automobile wears away a parts to want many,and replace to wear away a piece also more multifarious;
On the other say,the take type transports the superiority of the machine already very obviously,it is the key equipments of the indispensability in the national economy .Moreover,Internet the realization has been greatly shortened the belt conveyor design,development,manufacture,sales cycles,make it more competitive.
1.2 The take type transports the present condition and the development of the machine
Take type’s transporting machine is the coal mine is the most ideal to transport an equipments efficiently and continuously,compared with other conveyance equipmentses have distance of transport long,the carrying capacity is big and continue to transport etc.advantage,and circulate credibility,be easy to the realization automation and concentrate to turn a control,particularly to high produce efficiently the mineral well,the take type transports the key equipments that the machine has become coal to mine the machine electricity integral whole to turn a technique and equips.Along with the our country is high to produe of mineral well efficiently now,the take type that is originally possessed’s transporting machine is a regardless main parameter to still circulate functions and all have already can’t satisfy a request,have to the long pull,high take soon,big carrying capacity,big power of large turn the direction development,and want improve and raise to circulate function, insure safe credibility.
The take type that the our country production make transports the species,type of the machine more.In the”Enghth Five-Year Plan”period,the national one-stop “Nissan 10,000 tons fully mechanized equipment”projects,conveyor technology has-greatly improved,and mine with high power .The key to long-distance belt conveyor technology research and development of new products ,LU has made considerable progress.
Such as the big cape long pull take type transport machine to become a set an equipments,high produce to work efficiently noodles fluently slot the flexible take type transport machine ,etc.all filled up local bland ,and transport machine to turn down the key technique to the take type and it main dollar the parts carried on the theories research and the product development,develop successfully variety soft start and make to move equip and take PLC as core of the programmable electricity control device,driving the system adoption to adjust soon type the liquid dint matches the machine and the planet wheel gear to decelerate a machine accidentally.
The coal mine take type transports technical development trend of machine .
The equipments is large to turn,the exaltation transport an ability:For adapt high produce efficiently intensive turn the demand of the production,the take type transports machine to transport an ability to want enlargement.Long-distance,high belt speed,large-capacity,high-power future is the inecitable trend of development,as well as transport for the high-technology development direction.
Transport quantity and raise to the 3000-4000 ts/h in the 10 as of aftertime also raise to the 4-6 ms/s soon,transport length to transport to the flexible take type confidential attain a 3000ms.
For strength steel belt conveyor take longer to 5,000 m above single-driven power demand reached 1,000~1,500 kw,conveyor tensile strength reached 6,000 N/mm (steel cord)and 2500 N/mm (steel cord).
By the coal mine well to descend agreeable slot particularly flexible transport a technical development,along with high produce efficiently continuously develop of the emergence and the coal science and technology of work the noodles,the original flexible take type transports machine,is a regardless main parameter,still circulate functions all hard adapt high produce efficiently a request of work the noodles,the coal mine needs main parameter urgently on the scene greater ,the technique is more advanced,function more dependable long pull ,big carrying capacity 、big power fluently slot the flexible take type transport machine ,transporting technical design level of machine by the exaltation our country take type,filling up local bland,near to and catch up the technique level of the international advanced industrial country.
It contains seven of the key technologies:(1) belt conveyor dynamic analysis and control technology;(2)soft start with the power balance technology;(3)Intermediate Driver;(4)automatic tensioning technology .(5)new lifetime high technology high-speed roller;(6)rapid shift from the tail;(7)with efficient storage technology.
Raise 1 dollar parts function and credibicity :The equipments switch on rate of high and low mainly be decided by the function and the credibility of 1 dollar parts.In addition to further improving and enhancing the existing yuan parts of the performance and reliability,we will continue to research and development of new technologies and metadata components,such as high-performance technical controllable soft start,Dynamic Analysis and Monitoring Technology,and efficient storage devices with rapid shift from the tail,high-speed roller,belt conveyor so that the performance can be further raised.
Extend function ,a machine uses to turn much:Expan a luck a person,carry to anticipate or double to conveyance etc.function,attain a machine to use much,make it the exertive and biddest economic performance.Develop a special type a take type to transport machine,if the flection take type transports the machine,big cape or perpend cularity to promote to transport machine etc.
The big cape take type transports the extreme limit that the machine broke the last luck cape 25°s,expand,mine for the coal mine and the main and inclined well transported an equipments to choose a type to develop a new path,also transporting the equipments that the system changed an extension to provide economy efficiently for the current inclined well,to raise a yield and decline low cost have important meaning.
The level take type transports machine to have amplitude in the our country mineral mountain the production of applied foregroune,especially in the coal mine.My more inclind seam,16~25° tilt seam exist in large numbers.
The take type transports the function success to used for the bottom of the well,since can reduce tunnel to expand the quantity and equipments.
中文譯文
1.1帶式輸送機(jī)的的特點(diǎn)與應(yīng)用
帶式輸送機(jī)自1795年被發(fā)明以來,經(jīng)過兩個(gè)多世紀(jì)的發(fā)展,已被電力、冶金、煤炭、化工、礦山、港口等各行各業(yè)廣泛采用,特別是第三次工業(yè)革命帶來了新材料、新技術(shù)的采用使帶式輸送機(jī)的發(fā)展步入了一個(gè)新紀(jì)元。
當(dāng)今,無論從輸送量、運(yùn)距、經(jīng)濟(jì)效益等方面來衡量,它已經(jīng)可以同火車、汽車運(yùn)輸相抗衡,成為三足鼎立局面,并成為各國(guó)爭(zhēng)先發(fā)展的行業(yè)。
1.1.1帶式輸送機(jī)的特點(diǎn)
(1)結(jié)構(gòu)簡(jiǎn)單。帶式輸送機(jī)的接由傳動(dòng)滾筒、改向滾筒、托輥或無托輥部件、驅(qū)動(dòng)裝置、輸送帶等幾大件組成,僅有十多種部件,能進(jìn)行標(biāo)準(zhǔn)化生產(chǎn),并可按需要進(jìn)行組合裝配,結(jié)構(gòu)十分簡(jiǎn)單;
(2)輸送物料范圍廣泛。帶式輸送機(jī)的輸送帶具有耐磨、耐酸堿、耐油、阻燃等各種性能,并耐高、低溫,可按需要進(jìn)行能夠制造,因而能輸送各種散料、塊料、化學(xué)品生熟料和混凝土;
(3)輸送量大。運(yùn)量可從每小時(shí)幾公斤到幾千噸,而且是連續(xù)不間距輸送,這是火車、汽車運(yùn)輸望塵莫及的;
(4)運(yùn)距長(zhǎng)。單機(jī)長(zhǎng)度可達(dá)到十幾公里一條,在國(guó)外已經(jīng)十分普及,中間無需任何轉(zhuǎn)載點(diǎn)。越野的帶式輸送機(jī)常使用中間摩擦驅(qū)動(dòng)方式,使輸送機(jī)長(zhǎng)度不受輸送帶強(qiáng)度的限制。
(5)對(duì)線路適應(yīng)性強(qiáng)。現(xiàn)代的帶式輸送機(jī)在越野鋪設(shè)時(shí),已從槽形發(fā)展到圓形,它可在水平及垂直面上轉(zhuǎn)彎,打破了槽形輸送機(jī)不能打彎的限制,因而能依山靠水,沿地形而走,可節(jié)省大量修隧道,橋梁的基建投資。
(6)裝卸十分方便。帶式輸送機(jī)可根據(jù)工藝流程需要,可在任何點(diǎn)上進(jìn)行裝、卸料。圓管式輸送機(jī)也是如此。也可以在回程段上裝、卸料,進(jìn)行反向運(yùn)輸;
(7)可靠性高。由于結(jié)構(gòu)簡(jiǎn)單,運(yùn)動(dòng)部件自重輕,只要輸送帶不被撕破,壽命可達(dá)十年之久,而金屬結(jié)構(gòu)部件,只要防銹好,幾十年不壞;
(8)營(yíng)運(yùn)費(fèi)低廉。帶式輸送機(jī)的磨損件僅為托輥和滾筒,輸送帶壽命長(zhǎng),自動(dòng)化程度高,使用人員少,平均每公里不到一人,消耗的機(jī)油和電力也很少。
(9)能耗低,效率高。由于運(yùn)動(dòng)部件自重輕,無效運(yùn)量少,在所有連續(xù)式和非連續(xù)式運(yùn)輸中,帶式輸送機(jī)耗能最低,效率最高;
(10)維修費(fèi)少。帶式輸送機(jī)運(yùn)動(dòng)部件僅是滾筒和托輥,輸送帶又十分耐磨。相比之下,火車、汽車磨損部件要多的多,且更換磨損件也較為頻繁;
綜上所述,帶式輸送機(jī)的優(yōu)越性已十分明顯,它是國(guó)民經(jīng)濟(jì)中不可或缺的關(guān)鍵設(shè)備。加之國(guó)際互聯(lián)網(wǎng)絡(luò)化的實(shí)現(xiàn),又大大縮短了帶式輸送機(jī)的設(shè)計(jì)、開發(fā)、制造、銷售的周期,使它更加具有競(jìng)爭(zhēng)力。
1.2帶式輸送機(jī)的現(xiàn)狀及發(fā)展
帶式輸送機(jī)是煤礦最理想的高效連續(xù)運(yùn)輸設(shè)備,與其他運(yùn)輸設(shè)備相比,具有輸送距離長(zhǎng)、運(yùn)量大、連續(xù)運(yùn)輸?shù)葍?yōu)點(diǎn),而且運(yùn)行可靠、易于實(shí)現(xiàn)自動(dòng)化和集中化控制,尤其對(duì)高產(chǎn)高效礦井,帶式輸送已成為煤炭開采機(jī)電一體化技術(shù)與裝備的關(guān)鍵設(shè)備,隨著我國(guó)高產(chǎn)高效礦井的出現(xiàn),原有的帶式輸送機(jī)無論是主參數(shù)還是運(yùn)行性能都已不能滿足要求,必須向長(zhǎng)距離、高帶速、大運(yùn)量、大功率的大型化方向發(fā)展,并要改善和提高運(yùn)行性能,確保安全可靠。
我國(guó)生產(chǎn)制造的帶式輸送機(jī)的品種,類型較多,在“八五”期間,通過國(guó)家一條龍“日產(chǎn)萬噸綜采設(shè)備”項(xiàng)目的實(shí)施,帶式輸送機(jī)的技術(shù)水平有了很大的提高,煤礦井下用大功率、長(zhǎng)距離帶式輸送機(jī)的關(guān)鍵技術(shù)研究和新產(chǎn)品開發(fā)都取得了很大的進(jìn)步。如大傾角長(zhǎng)距離帶式輸送機(jī)成套設(shè)備,高產(chǎn)高效工作面順槽可伸縮帶式輸送機(jī)等均填補(bǔ)了國(guó)內(nèi)空白,并對(duì)帶式輸送機(jī)的減低關(guān)鍵技術(shù)及其主要元部件進(jìn)行了理論研究和產(chǎn)品開發(fā),研制成功了多種軟起動(dòng)和制動(dòng)裝置以及以PLC為核心的可編程電控裝置,驅(qū)動(dòng)系統(tǒng)采用調(diào)速型液力耦合器和行星齒輪減速器。
煤礦帶式輸送機(jī)技術(shù)的發(fā)展趨勢(shì):
設(shè)備大型化,提高運(yùn)輸能力;為了適應(yīng)高產(chǎn)高效集約化生產(chǎn)的需要,帶式輸送機(jī)的輸送能力需要加大,長(zhǎng)距離、高帶速、大運(yùn)量、大功率是今后發(fā)展的必然趨勢(shì),也是高產(chǎn)高效礦井運(yùn)輸技術(shù)的發(fā)展方向,在今后的10a內(nèi)輸送量要提高到3000~4000t/h,帶速提高到4~6m/s,輸送長(zhǎng)度對(duì)于可伸縮帶式輸送機(jī)要達(dá)到3000m。對(duì)于鋼繩芯強(qiáng)力帶式輸送機(jī)需加長(zhǎng)至5000m以上,單機(jī)驅(qū)動(dòng)功率要求達(dá)到1000~1500KW,輸送帶抗拉強(qiáng)度要達(dá)到6000N/ mm(鋼繩芯)和2500N/mm(鋼繩芯)。尤其是煤礦井下順槽可伸縮輸送技術(shù)的發(fā)展,隨著高產(chǎn)高效工作面的出現(xiàn)及煤炭科技的不斷發(fā)展,原有的可伸縮帶式輸送機(jī),無論是主參數(shù),還是運(yùn)行性能都難以適應(yīng)高產(chǎn)高效工作面的要求,煤礦現(xiàn)場(chǎng)急需主參數(shù)更大,技術(shù)更先進(jìn),性能更可靠的長(zhǎng)距離、大運(yùn)量、大功率順槽可伸縮帶式輸送機(jī),以提高我國(guó)帶式輸送機(jī)技術(shù)的設(shè)計(jì)水平,填補(bǔ)國(guó)內(nèi)空白,接近并趕上國(guó)際先進(jìn)工業(yè)國(guó)的技術(shù)水平。其包含7個(gè)方面的關(guān)鍵技術(shù): (1)帶式輸送機(jī)動(dòng)態(tài)分析與監(jiān)控技術(shù);(2)軟起動(dòng)與功率平衡技術(shù);(3)中間驅(qū)動(dòng)技術(shù);(4)自動(dòng)張緊技術(shù);(5)新型高壽命高速托輥技術(shù);(6)快速自移機(jī)尾技術(shù);(7)高速儲(chǔ)帶技術(shù)。
提高元部件性能和可靠性:設(shè)備開機(jī)率的高與低主要取決于元部件的性能和可靠性。除了進(jìn)一步完善和提高現(xiàn)有元部件的性能和可靠性,還要不斷地開發(fā)研究新的技術(shù)和元部件,如高性能可控軟起動(dòng)技術(shù),動(dòng)態(tài)分析與監(jiān)控技術(shù),高效貯帶裝置、快速自移機(jī)尾、高速托輥等,使帶式輸送機(jī)的性能得到進(jìn)一步提高。
擴(kuò)大功能,一機(jī)多用化:拓展運(yùn)人、運(yùn)料或雙向運(yùn)輸?shù)裙δ?,做到一機(jī)多用,使其發(fā)揮最大的經(jīng)濟(jì)效益。開發(fā)特殊型帶式輸送機(jī),如彎曲帶式輸送機(jī)、大傾角或垂直提升輸送機(jī)等。
大傾角帶式輸送機(jī)突破了丄運(yùn)25°的極限,為煤礦開拓,開采及在斜井輸送設(shè)備的選型開辟了一條新途徑,也為當(dāng)前斜井輸送系統(tǒng)改擴(kuò)建提供了經(jīng)濟(jì)高效的設(shè)備,對(duì)提高產(chǎn)量,降低成本具有重要意義。
水平帶式輸送機(jī)在我國(guó)礦山生產(chǎn)中有著廣闊的前景。我國(guó)傾斜煤層較多,16~25°傾斜煤層大量存在。帶式輸送機(jī)能成功地用于井下,既能減少巷道開拓量和設(shè)備投資又可加快工程進(jìn)度具有較大的經(jīng)濟(jì)效益。
畢業(yè)設(shè)計(jì)(論文)開題報(bào)告
題目:
工件步進(jìn)輸送機(jī)設(shè)計(jì)
系 部:
專 業(yè):
學(xué)生姓名:
指導(dǎo)教師:
開題時(shí)間:
一、總體說明
在開題報(bào)告中要求給出你對(duì)課題的理解,類似的研究在國(guó)內(nèi)外的進(jìn)展情況,你對(duì)系統(tǒng)設(shè)計(jì)的初步設(shè)想,主要需要解決的技術(shù)難題和解決思路,同時(shí)應(yīng)給出課題的時(shí)間安排。
二、開題報(bào)告內(nèi)容
1.畢業(yè)設(shè)計(jì)(論文)課題的目的、意義、國(guó)內(nèi)外現(xiàn)狀及發(fā)展趨勢(shì)
2.課題主要工作(設(shè)計(jì)思想、擬采用的方法及手段)
3.完成課題的實(shí)驗(yàn)條件、預(yù)計(jì)設(shè)計(jì)過程中可能遇到的問題以及解決的方法和措施
4. 畢業(yè)設(shè)計(jì)(論文)實(shí)施計(jì)劃(進(jìn)度安排)
5. 參考文獻(xiàn)
三、撰寫要求
1.報(bào)告字?jǐn)?shù)不少于3000字
2.報(bào)告內(nèi)容一律用A4紙打印
3. 上交時(shí)間為畢業(yè)設(shè)計(jì)第三周周末。
一、畢業(yè)設(shè)計(jì)(論文)課題的意義、國(guó)內(nèi)外現(xiàn)狀及發(fā)展趨勢(shì)(可加附頁)
1、課題意義
工件步進(jìn)輸送機(jī)用于間歇地輸送工件,到達(dá)預(yù)定位置。傳統(tǒng)輸送機(jī)通過電動(dòng)機(jī)采用普通減速器多級(jí)變速實(shí)現(xiàn),傳動(dòng)裝置結(jié)構(gòu)尺寸大。為了使裝置結(jié)構(gòu)緊湊,傳動(dòng)效率高,本文完成了采用行星減速器為傳動(dòng)系的步進(jìn)輸送機(jī)的設(shè)計(jì)與研究。
本文對(duì)工件步進(jìn)輸送機(jī)的研究要點(diǎn)如下:
(1) 介紹了現(xiàn)有工件輸送機(jī)的類型、發(fā)展趨勢(shì)和研究本課題的目的、意義,分析了輸送機(jī)國(guó)內(nèi)外的研究現(xiàn)狀。
(2) 在完成對(duì)工作機(jī)構(gòu)的設(shè)計(jì)、確定電動(dòng)機(jī)的類型的情況下,建立了兩種傳動(dòng)系減速方案,通過方案對(duì)比,擇優(yōu)選擇出采用行星齒輪減速器的步進(jìn)輸送機(jī)傳動(dòng)方案,并對(duì)此方案的可行性進(jìn)行了分析。
(3) 進(jìn)行了工件步進(jìn)輸送機(jī)的總體結(jié)構(gòu)設(shè)計(jì),重點(diǎn)設(shè)計(jì)了行星齒輪減速器總體及部分零件的結(jié)構(gòu),并詳細(xì)繪制了關(guān)鍵零件的工作圖。
(4) 同時(shí)運(yùn)用計(jì)算機(jī)輔助軟件對(duì)工作機(jī)構(gòu)及傳動(dòng)系進(jìn)行運(yùn)動(dòng)仿真分析,為進(jìn)一步改進(jìn)傳動(dòng)結(jié)構(gòu)提供理論依據(jù)。
2、 國(guó)外帶式輸送機(jī)技術(shù)的現(xiàn)狀
隨著科學(xué)技術(shù)的進(jìn)步,我國(guó)傳送裝置制造行業(yè)有了長(zhǎng)足的進(jìn)步。傳送裝置的成套性,自動(dòng)化程度,定位精度和整體質(zhì)量都明顯提高,其應(yīng)用范圍正逐步擴(kuò)大。輸送機(jī)是在一定線路上連續(xù)輸送物料的物料搬運(yùn)機(jī)械,又稱連續(xù)輸送機(jī)。它可進(jìn)行水平、傾斜和垂直輸送,也可組成空間輸送線路,輸送線路一般是固定的。輸送機(jī)輸送能力達(dá),運(yùn)距長(zhǎng),還可在輸送過程中同時(shí)完成若干工藝操作,所以應(yīng)用十分廣泛。工件步進(jìn)輸送機(jī)用于間歇地輸送工件,到達(dá)預(yù)定位置。
工件步進(jìn)輸送機(jī)一般來說應(yīng)具有電動(dòng)機(jī)、聯(lián)軸器、減速器、工作機(jī)構(gòu)、滑架、推爪、輥道和機(jī)架等部分,其中減速器是工件步進(jìn)輸送機(jī)最關(guān)鍵的傳動(dòng)裝置之一。它在傳送工件的過程中不僅擔(dān)負(fù)著減速及增加轉(zhuǎn)矩的功能,同時(shí)也降低了負(fù)載的慣量,是步進(jìn)式輸送機(jī)的核心部件之一。
3、國(guó)內(nèi)輸送機(jī)狀況
一 輸送機(jī)一般按有無牽引件來進(jìn)行分類:
(1)具有牽引件的輸送機(jī)一般包括牽引件、承載構(gòu)件、驅(qū)動(dòng)裝置、張緊裝置、改向裝置和支承件等。牽引件用以傳遞牽引力,可采用輸送帶、牽引鏈或鋼絲繩; 承載構(gòu)件用以承放物料,有料斗、托架或吊具等;驅(qū)動(dòng)裝置給輸送機(jī)以動(dòng)力,一般由電動(dòng)機(jī)、減速器和制動(dòng)器(停止器)等組成;張緊裝置一般有螺桿式和重錘式兩種,可使?fàn)恳3忠欢ǖ膹埩痛苟?,以保證輸送機(jī)正常運(yùn)轉(zhuǎn);支承件用以承托牽引件或承載構(gòu)件,可采用托輥、滾輪等。
具有牽引件的輸送機(jī)的結(jié)構(gòu)特點(diǎn)是:被運(yùn)送物料裝在與牽引件連結(jié)在一起的承載構(gòu)件內(nèi),或直接裝在牽引件(如輸送帶)上,牽引件繞過各滾筒或鏈輪首尾相連,形成包括運(yùn)送物料的有載分支和不運(yùn)送物料的無載分支的閉合環(huán)路,利用牽引件的連續(xù)運(yùn)動(dòng)輸送物料。
這類的輸送機(jī)種類繁多,主要有帶式輸送機(jī)、板式輸送機(jī)、小車式輸送機(jī)、 自動(dòng)扶梯、自動(dòng)人行道、刮板輸送機(jī)、埋刮板輸送機(jī)、斗式輸送機(jī)、懸掛輸送機(jī)和架空索道等。
(2)沒有牽引件的輸送機(jī)的結(jié)構(gòu)組成各不相同, 用來輸送物料的工作構(gòu)件亦不相同。它們的結(jié)構(gòu)特點(diǎn)是:利用工作構(gòu)件的旋轉(zhuǎn)運(yùn)動(dòng)或往復(fù)運(yùn)動(dòng),或利用介質(zhì)在管 道中的流動(dòng)使物料向前輸送。例如,輥?zhàn)虞斔蜋C(jī)的工作構(gòu)件為一系列輥?zhàn)?,輥?zhàn)?作旋轉(zhuǎn)運(yùn)動(dòng)以輸送物料;螺旋輸送機(jī)的工作構(gòu)件為螺旋,螺旋在料槽中作旋轉(zhuǎn)運(yùn) 動(dòng)以沿料槽推送物料;振動(dòng)輸送機(jī)的工作構(gòu)件為料槽,料槽作往復(fù)運(yùn)動(dòng)以輸送置 于其中的物料等。
二.輸送機(jī)械按使用的用途分可以分為:
(1)帶式輸送機(jī)由驅(qū)動(dòng)裝置拉緊裝置輸送帶中部構(gòu)架和托輥組成輸送帶作為牽引和承載構(gòu)件,借以連續(xù)輸送散碎物料或成件品。帶式輸送機(jī)是一種摩擦驅(qū)動(dòng)以連續(xù)方式運(yùn)輸物料的機(jī)械。應(yīng)用它,可以將物料在一定的輸送線上,從最初的供料點(diǎn)到最終的卸料點(diǎn)間形成一種物料的輸送流程。它既可以進(jìn)行碎散物料的輸送,也可以進(jìn)行成件物品的輸送。除進(jìn)行純粹的物料輸送外,還可以與各工業(yè)企業(yè)生產(chǎn)流程中的工藝過程的要求相配合,形成有 節(jié)奏的流水作業(yè)運(yùn)輸線。所以帶式輸送機(jī)廣泛應(yīng)用于現(xiàn)代化的各種工業(yè)企業(yè)中。 在礦山的井下巷道、礦井地面運(yùn)輸系統(tǒng)、露天采礦場(chǎng)及選礦廠中,廣泛應(yīng)用帶式輸送機(jī)。它用于水平運(yùn)輸或傾斜運(yùn)輸。
(2)螺旋輸送機(jī)俗稱絞龍,適用于顆?;蚍蹱钗锪系乃捷斔?,傾斜輸送,垂直輸送等形式。輸送距離根據(jù)畸形不同而不同,一般從2米到70米[1]。 輸送原理:旋轉(zhuǎn)的螺旋葉片將物料推移而進(jìn)行螺旋輸送機(jī)輸送。使物料不與 螺旋輸送機(jī)葉片一起旋轉(zhuǎn)的力是物料自身重量和螺旋輸送機(jī)機(jī)殼對(duì)物料的摩擦阻力。結(jié)構(gòu)特點(diǎn):螺旋輸送機(jī)旋轉(zhuǎn)軸上焊有螺旋葉片,葉片的面型根據(jù)輸送物料的不同有實(shí)體面型、帶式面型、葉片面型等型式。螺旋輸送機(jī)的螺旋軸在物料運(yùn)動(dòng) 方向的終端有止推軸承以隨物料給螺旋的軸向反力,在機(jī)長(zhǎng)較長(zhǎng)時(shí),應(yīng)加中間吊掛軸承。雙螺旋輸送機(jī)就是有兩根分別焊有旋轉(zhuǎn)葉片的旋轉(zhuǎn)軸的螺旋輸送機(jī)。說白了,就是把兩個(gè)螺旋輸送機(jī)有機(jī)的結(jié)合在一起,組成一臺(tái)螺旋輸送機(jī)。 螺旋輸送機(jī)旋轉(zhuǎn)軸的旋向,決定了物料的輸送方向,但一般螺旋輸送機(jī)在設(shè)計(jì)時(shí)都是按照單項(xiàng)輸送來設(shè)計(jì)旋轉(zhuǎn)葉片的。當(dāng)反向輸送時(shí),會(huì)大大降低輸送機(jī)的 使用壽命。
(3)斗式提升機(jī) 利用均勻固接于無端牽引構(gòu)件上的一系列料斗,豎向提升物料的連續(xù)輸送機(jī)械。斗式提升機(jī)具有輸送量大,提升高度高,運(yùn)行平穩(wěn)可靠,壽命長(zhǎng)顯著優(yōu)點(diǎn),本提升機(jī)適于輸送粉狀,粒狀及小塊狀的無磨琢性及磨琢性小的物料,如:煤、 水泥、石塊、砂、粘土、礦石等,由于提升機(jī)的牽引機(jī)構(gòu)是環(huán)行鏈條,因此允許輸送溫度較高的材料(物料溫度不超過250℃)。一般輸送高度最高可達(dá)40米。
二、課題預(yù)期目標(biāo)及主要工作(設(shè)計(jì)思想、擬采用的方法及手段)
通過對(duì)研究本課題,不僅可以使我對(duì)工件輸送機(jī)總體結(jié)構(gòu)有宏觀把握,而且對(duì)行星傳動(dòng)減速器有了深入的了解,掌握其工作原理,提高自己對(duì)機(jī)械設(shè)計(jì)的了解,在設(shè)計(jì)的過程中我肯定會(huì)遇到大量的問題。如減速器的結(jié)構(gòu)問題,中間的大量的數(shù)據(jù)計(jì)算,不過我會(huì)通過查閱資料或詢問老師來解決,提高自己解決困難的能力。而且了解其優(yōu)點(diǎn),在自己的設(shè)計(jì)工作中充分地發(fā)揮其優(yōu)點(diǎn),把其缺點(diǎn)降低到最低的限度,從而設(shè)計(jì)出性能優(yōu)良的行星齒輪傳動(dòng)裝置。這次畢業(yè)設(shè)計(jì)一定會(huì)對(duì)我今后的學(xué)習(xí)工作起到巨大的作用。
三、預(yù)計(jì)設(shè)計(jì)過程中可能遇到的問題以及解決的方法和措施
1、設(shè)計(jì)過程中可能出現(xiàn)支架的剛度不足問題,我們會(huì)采取還剛度更好些的鋼材。
2、折疊方案問題,我們會(huì)采取用最簡(jiǎn)單的方案做出同樣的效果。如螺栓定位折疊法
3、傾斜角度問題,采取的方案太多,但是從經(jīng)濟(jì)適用省力角度選擇一種。如絞磨鋼絲繩組合調(diào)角度。
4、電機(jī)放置方案,是采用放在機(jī)架上還是放在箱體上。
四、進(jìn)度安排
順序
階段日期
計(jì) 劃 完 成 內(nèi) 容
備注
1
第一周
布置任務(wù),熟悉課題,查閱資料
2
第二周
確定方案,準(zhǔn)備開題報(bào)告
3
第三周
完成開題報(bào)告
4
第四周
總體方案設(shè)計(jì)
5
第五周
結(jié)構(gòu)設(shè)計(jì)
6
第六周
強(qiáng)度和剛度驗(yàn)算
7
第七周
電機(jī)選擇,減速裝置設(shè)計(jì)
8
第八周
裝配圖設(shè)計(jì),零件圖設(shè)計(jì)
9
第九周
裝配圖設(shè)計(jì),零件圖設(shè)計(jì)
10
第十周
模型制造與調(diào)試
11
第十一周
模型制造與調(diào)試
12
第十二周
整理文檔,整理設(shè)計(jì)論文,準(zhǔn)備答辯
13
第十三周
設(shè)計(jì)答辯
五、參考文獻(xiàn)
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[2]李炳文,王啟廣.礦山機(jī)械.徐州:中國(guó)礦業(yè)大學(xué)出版社,2007,162~186
[3]張?jiān)?DTⅡ(A)型帶式輸送機(jī)設(shè)計(jì)手冊(cè).北京:冶金工業(yè)出版社.2003,15~450
[4]宋偉剛.通用帶式輸送機(jī)設(shè)計(jì).北京:機(jī)械工業(yè)出版社,2006,1~183
[5]北京起重運(yùn)輸機(jī)械研究所.DTⅡ(A)型帶式輸送機(jī)設(shè)計(jì)手冊(cè)..北京:冶金工業(yè)出版社礦山機(jī)械.2003,20~50
[6]周滿山,于巖,張媛等。帶凹凸變坡的帶式輸送機(jī)設(shè)計(jì)。礦山機(jī)械,2011.6
[7]王新偉等。軟啟動(dòng)在帶式輸送機(jī)中的應(yīng)用。礦山機(jī)械,2005.4
[8]成大先主編,機(jī)械設(shè)計(jì)手冊(cè)。北京:化學(xué)工業(yè)出版社,1993
[9]孫可文主編,帶式輸送機(jī)的傳動(dòng)理論與設(shè)計(jì)計(jì)算。煤炭工業(yè)出版社
[10]程居山主編,礦山機(jī)械。中國(guó)礦業(yè)大學(xué)出版社,1997
[11]Belt conveyor technology(part Ⅲ).trans tech publications.2000
[12]吳宗澤,機(jī)械設(shè)計(jì)師手冊(cè)[M]。北京:機(jī)械工業(yè)出版社,2004
[13]Lodewijks G..dynamics of belt system:Dortoral Thesis.Delft University of Technology,Netherland,1996
[14] Giraud, Laurent; Masse, Serge; Schreiber, Luc. Belt conveyor
safety .professional safety 2004,49(11):20-26
[15]邱宣懷,《機(jī)械設(shè)計(jì)》,高等教育出版社 , 1997(第四版)
[16]濮良貴,《機(jī)械設(shè)計(jì)》,高等教育出版社,2000(第七版)
[17]輸送機(jī)關(guān)鍵部件產(chǎn)品說明書
[18]相關(guān)刊期論文等
六、指導(dǎo)教師意見
指導(dǎo)教師簽名:
年 月 日