工業(yè)型煤成型機(jī)的設(shè)計(jì)
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工業(yè)型煤成型機(jī)的設(shè)計(jì)
中 國(guó) 礦 業(yè) 大 學(xué)
本科生畢業(yè)論文
姓 名： 陳 會(huì) 軍 學(xué) 號(hào)：0030842
學(xué) 院： 機(jī)電工程學(xué)院
專 業(yè)： 機(jī)械工程及自動(dòng)化
論文題目： 工業(yè)型煤成型機(jī)的設(shè)計(jì)
專 題：
指導(dǎo)教師： 王忠賓 職 稱： 副教授
2007年 6 月 徐州
中國(guó)礦業(yè)大學(xué)畢業(yè)論文任務(wù)書
學(xué)院 機(jī)電工程學(xué)院 專業(yè)年級(jí) 機(jī)自03-3班 學(xué)生姓名 陳會(huì)軍
任務(wù)下達(dá)日期：2007年 3 月 5 日
畢業(yè)論文日期： 2007 年 3 月 26 日 至 2007 年6 月 25日
畢業(yè)論文題目： 工業(yè)型煤成型機(jī)的設(shè)計(jì)
畢業(yè)論文專題題目：
畢業(yè)論文主要內(nèi)容和要求：
結(jié)合畢業(yè)實(shí)習(xí)采用對(duì)輥成型原理，采用強(qiáng)迫加料方式設(shè)計(jì)一臺(tái)工業(yè)型煤成型機(jī)。
輥?zhàn)愚D(zhuǎn)速 8-10r/min(圓周速度0.4-0.6m/s);成型壓力 10-20 Kn/cm，小時(shí)產(chǎn)量20-30噸；型球尺寸 45*45*28， 采用液壓加載；螺桿固定框架結(jié)構(gòu)；同步式齒輪傳動(dòng)箱；
1. 明確該裝置的工作原理及相關(guān)受力分析，參考設(shè)計(jì)參數(shù)確定電動(dòng)機(jī)功率。完成該裝置的總體設(shè)計(jì)；
2. 完成同步式齒輪箱裝配圖設(shè)計(jì)；
3. 齒輪傳動(dòng)組件，零件工作圖設(shè)計(jì)；
4. 編寫完成整機(jī)設(shè)計(jì)計(jì)算說(shuō)明書；
5. 專題討論成型筒的材料與加工
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中國(guó)礦業(yè)大學(xué)畢業(yè)論文指導(dǎo)教師評(píng)閱書
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摘要
本論文描述了GDC955/45對(duì)輥成型機(jī)的設(shè)計(jì)和計(jì)算過(guò)程，并對(duì)關(guān)鍵部位進(jìn)行了分析和研究。
工業(yè)對(duì)輥成型機(jī)是一種應(yīng)用到型煤生產(chǎn)中的關(guān)鍵設(shè)備，屬于工程機(jī)械。對(duì)輥成型機(jī)是由壓輥、軸承、給料系統(tǒng)、承壓支架、減速器（傳動(dòng)裝置）、潤(rùn)滑系統(tǒng)、等機(jī)構(gòu)組成。與傳統(tǒng)低速重載、剛性不足的老式減速器相比，它具有體積小、重量輕、成本低廉等優(yōu)點(diǎn)。
對(duì)輥組件直接關(guān)系到型煤煤球的成球質(zhì)量，工業(yè)型煤是一種廣泛應(yīng)用到冶金、制造化肥、電廠等工業(yè)領(lǐng)域、對(duì)節(jié)能、環(huán)保都具有重要意義的清潔、高效的新型燃料。本設(shè)計(jì)在對(duì)輥輥輪與對(duì)輥軸之間采用脹套無(wú)鍵連接技術(shù)，兩對(duì)對(duì)輥輥輪之間必須具有良好的對(duì)中性，否則會(huì)影響成型質(zhì)量。采用脹套無(wú)鍵連接的優(yōu)點(diǎn)是可以方便的松開脹套對(duì)輥輪進(jìn)行調(diào)整，保證型煤的成球率。
在給料系統(tǒng)中，本裝置采用了螺旋強(qiáng)迫加料裝置，采用此裝置可滿足對(duì)輥成型機(jī)對(duì)加料速度，加料壓力及物料密度的匹配要求大大提高了型煤的成球強(qiáng)度。
本設(shè)計(jì)機(jī)架采用螺桿連接結(jié)構(gòu)，此種機(jī)架制作簡(jiǎn)便，而且承載能力強(qiáng)，拆裝方便，基本滿足大型對(duì)輥成型機(jī)的工作要求。
關(guān)鍵詞：對(duì)輥成型機(jī)；工業(yè)型煤；螺旋加料；液壓加載
ABSTRACT
The process of the design and calculations GDC955/45 roll-type forming machine is described, and the crucial units are analyzed and investigated.
Industry roll-type forming machine is a crucial device applied to the manufacturing of shape-coal. It’s a kind of engineering machine. Roll-type machine consists of units such as pressing rolls, bearing, feeding system, bearing beam ,three-staged velocity-reduction gearbox (transmission system), lubricating system, and hydraulic pressing system, etc .compared conventional forming machine ,with heavy-burden and inadequate rigidity, it is of small-volume,;low-weight and low-cost.
Double rolls have a direct relation to the forming-quality of shape-coal. Industry shape-coal is a new-type of clean ,effective fuel which is widely applied to various industry field such as metallurgical industry ,manufacturing industry chemical fertilizer, calcium carbide and has a vital significance to energys-aving and environment-protection business.
Design in the paper uses expanded–casing and no-key connecting technology and it must be guaranteed that it must be of good centering character-
istic betwween ball groves of the two rolls. Otherwise the forming quality will be
seriously affected. Use expanded-casing and no-key connecting technology, rolls can can be conveniently adjusted by loosning expanded-casing to ensure the forming rate of shape coal.
In the feeding system, the frequency conversion-timinghelix feeding equipment is adopted in the system which can satisfy the requriements of speed of filing the press of the feeding and the match of the material. So ,it can also improve the intensity of the figuration of the briquette.
Design of structure uses construction of pressing rolls which can be easily removed or easily altered. This kind of structure is of simple-make and bear heavy loads. Hence,the working requirements os large scale roll-type forming maching are satisfied.
Keywords: roll-rype forming machine; industry shape-coal; thefrequency conversion-timing helix feeding system; hydraulic loading .
目 錄
第１章 總述…………………………………………………...1
1.1 對(duì)輥成型機(jī)的工作原理 1
1.2 影響型煤成型的因素 3
1.2.1 粉煤粒度、給配對(duì)粉煤成型的影響 3
1.2.2 原料混合后的均勻性與攪拌時(shí)間的影響 4
1.2.3 成型的壓力 4
1.2.4 成型過(guò)程中水分含量的影響 5
1.2.5 壓輥的直徑和寬度 6
1.2.6 兩個(gè)壓輥的間距 6
1.2.7 壓輥的轉(zhuǎn)速 6
1.3型輪主要參數(shù)設(shè)計(jì)理論 6
1.3.1 最大壓強(qiáng) 7
1.3.2 兩棍輪的間隙 7
1.3.3 棍輪直徑 8
1.3.4 生產(chǎn)能力計(jì)算 8
1.3.5 功率的計(jì)算 8
1.4高壓對(duì)輥成型機(jī)的設(shè)計(jì)及其新進(jìn)展 9
1.4.1 壓輥 9
1.4.2 壓輥的支撐裝置 10
1.4.3 給料系統(tǒng) 11
1.4.4 承壓支架 13
1.4.5 驅(qū)動(dòng)齒輪系 14
1.4.6 潤(rùn)滑 14
1.4.7 液壓施壓系統(tǒng) 14
第２章對(duì)輥成型機(jī)的設(shè)計(jì)過(guò)程...........................................................................15
2.1 確定傳動(dòng)方案 15
2.2 總體設(shè)計(jì) 16
2.2.1 已知主要參數(shù) 16
2.2.2 確定輥?zhàn)拥某叽鐓?shù) 17
2.2.3 總壓力計(jì)算 18
2.2.4 輥?zhàn)拥尿?qū)動(dòng)力矩計(jì)算 19
2.2.5 主電機(jī)功率計(jì)算 19
2.3 非標(biāo)準(zhǔn)同步減速器的設(shè)計(jì) 20
2.3.1 傳動(dòng)比的分配 20
2.3.2 帶傳動(dòng)設(shè)計(jì) 21
2.4 同步減速器設(shè)計(jì) 24
2.4.1 減速器的設(shè)計(jì)要求 24
2.4.2 各級(jí)傳動(dòng)參數(shù)計(jì)算 25
2.4.3 I級(jí)傳動(dòng)輪齒副設(shè)計(jì)計(jì)算 26
2.4.4 Ⅱ級(jí)傳動(dòng)輪齒副設(shè)計(jì)計(jì)算 31
2.4.5 Ⅲ級(jí)傳動(dòng)輪齒副設(shè)計(jì)計(jì)算 37
2.4.6 減速器輸入軸的設(shè)計(jì)和校核 41
2.4.7 減速器輸出軸的設(shè)計(jì)和校核 50
2.4.8 型輥軸的結(jié)構(gòu)設(shè)計(jì) 60
2.4.9 軸的強(qiáng)度校核 61
第３章成型機(jī)其他部分的設(shè)計(jì)………………………………………………...66
3.1型板材料的選擇 66
3.2液力加載系統(tǒng)分析 67
3.2.1 液力加載系統(tǒng)的特征 67
3.2.2 液力加載系統(tǒng)原理 67
3.2.3 液力支撐油缸 68
3.2.4 力加載系統(tǒng)受力動(dòng)態(tài)分析 69
3.3關(guān)鍵部位設(shè)計(jì) 71
參考文獻(xiàn)…………………………………………………………………………………...72
翻譯部分………………………………………………………………………...74
致謝……………………………………………………………………………...85
翻譯部分
英文原文
BELT CONVEYING SYSTEM
Ideally, the system adopted for the transport of any mineral should: (a) provide continuity of mineral clearance from the point of production with maximum safety and reliability, to ensure that production is not interrupted by transport restrictions, (b) be capable of handling the peak outputs, (c) minimize degradation and dust problem , (d) eliminate spillage or at least incorporate means for its collection and reintroduction to the main mineral stream, (e) provide optimum economy in labour requirement .
In general terms, belt conveying systems satisfy the above criteria. The application of remote monitoring and control. Together with the employment of bunker conveyors , further enhance the efficiency of the system.
There are limiting factors affecting the use of belt conveyors in that generally a reasonably straight run is necessary, the maximum angle of inclination is normally 25 degrees (1 in 4) and the maximum lump size is to be less than about half the width of the belt. The carrying capacity is influenced by the angle of repose of the material transported, keeping in mind that passing over the idler rollers, the material is continuously disturbed and spread out on the belt. Notwithstanding the above the belt conveyor has a tremendous and expanding mineral transport potential.
In its simplest form a belt conveyor consists of a pair of drums, one of which is powered, and between which is stretched an endless band. This elementary arrangement has limited use for other than short distance application such as the carrying of packages, etc. . For other than short distance the top band must be supported by regularly spaced idlers to prevent sagging. Troughing idlers are ideal for this purpose, a set of which normally consists of three separate rollers, the two outer and shorter being inclined upwards to trough the belt. For low capacity, narrow belts, two idlers may be used and for high capacity duty, five or more may be employed. The button or return belt requires a lower level of support and generally may run in a flat plane, a usual arrangement being to use single rollers, at double the spacing distance used with the top strand. With exceptionally long conveyors, two roll semi-troughed return rollers may be justified.
The drive arrangements normally consist of an electric motor and speed reduction gear-box, connected to each other by suitable couplings and preferably pre-aligned on a machined bed plate, the assembly being associated with an all embracing supporting structure to support and align the idlers, pulleys and drive.
The above comprise the essential elements of a typical belt conveyor; belt, idlers, pulleys, drive and structure, to which are added other important items, a selection of which will be examined, starting with probably the most important;the conveyor belt.
CONVEYOR BELTING
A conveyor belt that may be defined (ref. 1), as “ a number of load carrying members bonded together with polymeric compounds (making up the carcase) and protected from mechanical damage by elastomeric covers. The load carrying members usually consist of either a number of plier of woven fabric, a single solid woven fabric carcase, or a single layer of parallel, equidistant steel cables”.
At the onset it must be stated that conveyor belting of any construction, may be classified as Fire Resistant or Non-fire Resistant. In certain underground situations, the former may be required by Legislation or by accepted Codes of Practice. For example, in the U.K. coal mining industry, only Approved fire resisting belting may be used underground. Most other developed countries have similar requirements. In addition there are many situations where the use of fire resistant belting is recommended, for example, in complex mineral benefication plants. It is most important that in the early stages of design of any conveyor system, the type of belt be determined, as differing characteristics of the two types may influence the design of other associated equipment, and problems may be introduced if a change is required at some later date. The use to which any particular belt is to be subjected should be covered in the purchase specification, since the various properties of a belt may need modification to accommodate the sometimes conflicting demands of coefficient of friction, ageing characteristics, moisture absorption, etc. .Also as a generality, a belt of rubber construction has a greater ability to absorb impact than one of fire resistant construction.
There are three main constructional forms of belting : (a) ply construction, (b) solid woven construction, (c) steel cord construction.
In the above constructions, (a) and (b), only the carcase provides the strength to carry the load and withstand the various operational stresses that are developed in the belt. Since the carcase is the most expensive element in the belt, it is important that the specification incorporates adequate means of protecting this most important element. In the(c), the load carrying steel cords requires like protection.
Additionally, there is the specialised design of belt with the Cable belt system which will be separately described when that arrangement is considered.
(1)Ply Belt Construction
When discussing ply belting, the terms ‘warp’ and ‘weft’ often occur, for the purpose of this sub-section it may be taken that : ‘warp’ refers to the longitudinal strength of the belt, and ‘weft’ refers to the lateral strength of belt.
The lateral flexibility of the belt is always of importance in order that it may conform to the idler curve, this being particularly so when deep troughing idlers are to be used.
The traditional belt carcase consisted of layers of woven natural fabric, this now consists of one or more plies of synthetic fibres such as nylon and /or terylene, the whole being vulcanised or fused together with the appropriate cover material. Such synthetic fibres are stronger than natural fibres (cotton), are thinner, more flexible, allowing deeper troughing in the idlers, allow the use of smaller diameter pulleys and have a shorter elongation under high working tensions.
The cover may be rubber in the case of non-fire resisting belts and PVC, Neoprene, etc. ,in the case of fire resisting types. The minimum cover on both side of any belt should be not less than 0.8 mm (0.3 in) but for the transport of almost all mineral must be increase having regard to the material handled. For example ,with moderately abrasive materials such as coal, rubble, ashes, etc. ,the minimum carrying side cover should be 2.4 mm with 0.8 mm on the pulley side. With the more abrasive minerals, see Appendix 5, the minimum carrying side over should be 3.2 mm with 1.6mm on the pulley side.
Although national standards may vary, a belt type may be classified having regard to its strength, an example being given in the next sub-section.
(2)Solid Woven Belt
Much of that said about ply belting applies to the solid woven form , but in the later, the fibres from which the belt carcase is constructed are inter-woven, then impregnated to give a ‘solid’ form, and to which appropriate covers are applied. The fibers may be of high tenacity nylon warp, cotton pile and blended weft, with certain qualities of belting employ a polyester warp. In the standard fire resisting form the cover may be PVC, but this has certain limitations, particularly in respect of conveying up inclines. To overcome this problem the cover may be of nitrile rubber, i.e. 100% butadiene acrylonitrile polymer, which offers the advantages of natural rubber. Such nitrile rubber covers are applied to both the carrying and the driving faces of the belt with consequently improved frictional characteristics which minimize load slip and afford increase driving traction. A smooth pressed finish permits more efficient belt cleaning –an essential feature in view of the higher moisture content of coal and indeed many other minerals. A further advantage is that such covers do not polish in service as dose PVC . An important feature of solid woven belt is that the construction eliminates ply separation and gives excellent resistance to edge wear, further, it is rot proof and resistant to mineral oils.
A modern loom to manufacture solid woven belting employs a rapier weft insertion system rather than a shuttle, to eliminate the down time require to change weft bobbins, and also to give a good selvedge finish. The weaving process finished, the carcase is transferred to the finishing process which entails impregnation with liquid PVC compound, giving an additional, appropriate wear resistant surface coating, finally being press cured under tension.
In addition to satisfying U.K. requirements such belts conform to the following fire resistant specifications and are readily available in tensile strengths from 315 to 2625 kn/m of belt width:
Australia MDA-Series 250 international ISO R340
Canada 4th Draft No. M422-M South Africa SABS 971
France NF-M81-651 U. S .A USBM Schedule 2G
Germany DIN 22103/4
A particular product range includes belts ranging in tensile warp (longitudinal ) strength ranging from 315 to 1000 kn/m, with associated warp ( lateral ) strength from 158 to 350 kN/m, the weft to warp ratio varies progressively from 50 down to 35%. Higher strength belts then increase to a tensile strength to 2625 kN/m, the weft strength remaining constant at 350 kN/m. Consequently , the weft/warp ratio drops rapidlly down to 11.4%, this being necessary to allow ready tracking in the troughing idlers.
(3) Steel Cord belt Construction
The ever increasing demand for higher tensile strength belting created a corresponding demand for stronger belt reinforcements, which at higher level cannot be satisfied by the use of even the highest strength man-made fibers, resulting in the use of the steel cord belt in which the warp strength is provided by steel cables. Such belt is manufactured in a two part process, (a) the mixing of ploy chloroprene to produce a centre matrix and the two cover layers , and (b) the assembly of cords , matrix and covers in a rolling process with the cords under tension, followed by a curing process.
It has been found that a combination of hard (>80 degrees ) fire resistant, anti-static (FRAS) elastomers and cords displaced vertically at a distance greater than 1 mm leads to the failure of the elastomer by compression and tension. Like problems may occur if there are defects in the design concept. Such problem may be overcome by the use of elastomers with a hardness in the 60 to 68 degree range-this being a stringent requirement when additives to drive ensure fire retardency are employed. Fatigue may be minimized by close attention to drive and return drum diameters and by the use of torque limitation devices in the conveyor drive.
The details of the belt employed at the Sebly Mining Complex, England, are :
Conveyor length 14.93 km Belt thickness 28.3 mm
Belt width 1300 mm Belt strength 6590 kN/m
Number of cords 57 Vertical lift 990 m
Cord diameter 13.1 mm Motor power 10100 kW
DRIVING DRUMS
It must be conceded that improvements in drum or pulley design has not kept pace with the overall drive-head developments. Increasingly flexible belts allow the use of smaller diameter pulleys which then rotate faster for a given belt speed. Belts themselves also run faster, resulting in yet higher rotational speed-pulleys then fail, particularly at welded connections, due to their high fatigue loading.
In all stress calculations associated with drum design, explicit allowances must be made for stress ratios due to their cyclic loading. Hub deflections must be below the critical stress level and all welds should be class’E’. Drums should have a Fatigue Reserve Factor(FRF) of at least 1.3 to 1. the FRF being the ratio: Maximum Allowable Amplitude Stress/Actual Amplitude Stress, which should be >1.3.
For infinite life-which should be objective of all drums design, a fatigue limit of not less than 10^8 should be specified.
中文翻譯:
帶傳動(dòng)系統(tǒng)
在理想的狀態(tài)下，若采用此系統(tǒng)對(duì)任何礦物運(yùn)輸時(shí)，應(yīng)能（a）以最大的安全和可靠性，由間隔的生產(chǎn)點(diǎn)形成連續(xù)的礦物流，以保證生產(chǎn)不因運(yùn)輸?shù)哪承┫拗茥l件而間斷。(b)能操作最高的輸出，(c)使退化降到最低和減小粉塵問題，(d)消除濺射或至少把它收藏起來(lái)以及恢復(fù)主要礦產(chǎn)地,(e)勞工要求方面提供最佳的經(jīng)濟(jì)條件。
一般而言，皮帶傳輸系統(tǒng)符合上述的標(biāo)準(zhǔn)。應(yīng)用遙感的檢測(cè)和控制，連同就業(yè)掩體輸送帶，進(jìn)一步提高了系統(tǒng)的效率。
這兒有許多限制因素影響帶傳動(dòng)的使用，這是因?yàn)椋核枰粋€(gè)合適的直線運(yùn)動(dòng)，它的最大傾斜角度為25度，最大的整體尺寸要少于帶寬尺寸的一半。帶的運(yùn)輸能力受傾斜角度和皮帶材料的影響，始終要記住的一點(diǎn)是：掠過(guò)閑人壓路機(jī)，礦物質(zhì)不斷的干擾皮帶和散布在皮帶上，盡管如此，皮帶還是有很大的運(yùn)輸潛能，從而可以擴(kuò)大生產(chǎn)能力。
一個(gè)最簡(jiǎn)單的皮帶運(yùn)輸形式包括一對(duì)滾筒，其中一個(gè)是動(dòng)力源。并且在它們之間纏繞得有無(wú)頭的膠帶。這種簡(jiǎn)單的纏繞方式僅限于使用在短距離輸送中，比如用于搬運(yùn)包裹等。除個(gè)別的短距離，頂部的膠帶必須要以固定的間隔的拖棍支撐起來(lái)，防止膠帶的下垂。為達(dá)到此目的，槽形的拖棍是最理想的。這種拖棍由三個(gè)獨(dú)立的滾輪組成，有兩個(gè)在外部，一個(gè)在離它們很近的一端，，并且?guī)乃纳厦娲┻^(guò)。對(duì)于較低運(yùn)輸能力的，窄的膠帶，可能使用到兩個(gè)拖棍，對(duì)于高運(yùn)輸能力和多塵的工作環(huán)境條件下，可能用到五個(gè)或者更多的拖棍。底部或返回帶需要更低的支撐條件，并且很有可能一個(gè)平面運(yùn)行一般使用單一的滾輪，在雙頂?shù)拈g隔距離使用鋼絞線。對(duì)于特定的長(zhǎng)距離運(yùn)輸，兩個(gè)半凹輥更為合適。
驅(qū)動(dòng)部分通常由電機(jī)和齒輪減速箱組成，各個(gè)部分通過(guò)合適的聯(lián)軸器聯(lián)結(jié)，最好預(yù)先對(duì)齊機(jī)器底座，組裝時(shí)要求所有的支撐結(jié)構(gòu)支撐到拖棍并，膠帶輪，且要和它對(duì)齊。
上面所講的都是典型的皮帶傳輸系統(tǒng)的必要組成元素，如：膠帶，拖棍，滾筒，，驅(qū)動(dòng)部分，和支撐結(jié)構(gòu)，在加上一些其他的部分。選定后進(jìn)行審查，是開始的最重要的部分，特別是對(duì)于帶式傳輸。
運(yùn)輸機(jī)膠帶裝置
運(yùn)輸傳送帶可以定義為（參閱1）“一些承擔(dān)負(fù)載運(yùn)輸?shù)幕暇酆衔?，以及避免機(jī)械遭受損壞的橡膠覆蓋層。” 通常的承載部分包括一定數(shù)量的組織物，單一的固體組織物和單一的平行層及等距鋼纜。
在類型方面，對(duì)于運(yùn)輸機(jī)膠帶裝置的結(jié)構(gòu)材料可分為耐火和非耐火材料。在某些情況下，前者可能需要通過(guò)立法或接受守則的規(guī)定。例如，在英國(guó)煤炭開采業(yè)，只有耐火的膠帶用于地下工作。其他大多數(shù)國(guó)家也都有類似的規(guī)定。另外還有許多情況下，建議使用耐火材料的膠帶。例如在復(fù)雜的選礦廠。在設(shè)計(jì)任何運(yùn)輸機(jī)膠帶裝置的初期階段，要確定膠帶的類型，這是最重要的，因?yàn)閮煞N不同類型的膠帶將會(huì)影響到其他的相關(guān)的設(shè)備的設(shè)計(jì)，如果在后期需要作改變，則會(huì)有新的問題產(chǎn)生。使用任何特定的皮帶都應(yīng)該覆蓋到它的采購(gòu)規(guī)格，由于需要調(diào)整皮帶的不同性能來(lái)滿足某些摩擦要求，壽命要求以及滿足吸濕的要求等。同時(shí)，作為一般性，橡膠帶的沖擊力吸收性要比耐火材料的吸收性好。
這里主要有三種類型結(jié)構(gòu)的的膠帶：（a）層芯結(jié)構(gòu)，（b）整芯編織結(jié)構(gòu)，（c）鋼繩芯結(jié)構(gòu)。
在上述的類型結(jié)構(gòu)中，對(duì)于（a）類和（b）類，只有帶芯承擔(dān)負(fù)載和承受各種工作壓力，即產(chǎn)生在膠帶內(nèi)部的壓力，很重要的一點(diǎn)是膠帶要具有各種保護(hù)能力。在（c）類中，鋼絲繩芯也需要保護(hù)。
另外，有專門的皮帶設(shè)計(jì)系統(tǒng)使用鋼繩牽引膠帶系統(tǒng)，當(dāng)需要考慮不同的安排結(jié)構(gòu)時(shí)，它需要分開來(lái)描述。
（1）層芯結(jié)構(gòu)
當(dāng)討論層芯結(jié)構(gòu)時(shí)，經(jīng)常會(huì)遇到膠帶的縱向強(qiáng)度和橫向強(qiáng)度，在本小節(jié)，可以用經(jīng)線來(lái)代表膠帶的縱向強(qiáng)度，緯線來(lái)代表膠帶的橫向強(qiáng)度。
膠帶的橫向彈性是最重要的，這是因?yàn)椋核芘c拖棍的曲線吻合。尤其在使用槽形的拖棍的時(shí)候。
傳統(tǒng)的帶芯是由天然的橡膠材料組成的，現(xiàn)在的帶芯由一個(gè)或多個(gè)合成纖維如尼龍/或滌綸組成，用適當(dāng)?shù)牟牧习颜麄€(gè)融合在一起。這些合成纖維的強(qiáng)度都要比天然纖維（棉花）的強(qiáng)度大，要薄，更具有柔性。，允許使用在更深的槽形拖棍中，較小直徑的膠帶輪上， 并且在重載情況下伸縮量較小。
耐火類型的膠帶的覆蓋層可能是橡膠，聚氯乙烯，氯丁橡膠等。膠帶兩邊的最小覆蓋層應(yīng)該不少于0.8毫米（0.3英寸），但對(duì)于所有的礦物運(yùn)輸必須增加相關(guān)材料的處理。例如，中度磨料如煤，碎石，骨灰等，最小的運(yùn)輸邊覆蓋層應(yīng)該2.4毫米，滾筒邊應(yīng)該是0.8 毫米。更多的磨料物質(zhì)見附錄5，最小的運(yùn)輸邊覆蓋層應(yīng)該是3.2 毫米，滾筒邊是1.6毫米。
盡管各國(guó)的標(biāo)準(zhǔn)不一樣，但是皮帶都是根據(jù)它的強(qiáng)度來(lái)分的,一個(gè)給定的例子就是下面的部分。
（2）整芯編織結(jié)構(gòu)
有許多關(guān)于整芯編織結(jié)構(gòu)的說(shuō)法，但對(duì)于后來(lái)的整芯編織結(jié)構(gòu)，都是跨編織結(jié)構(gòu)，然后用合適的層鑲以‘堅(jiān)實(shí)’的形式。纖維可能是高強(qiáng)度尼龍紗，棉花，并貫以聚酯的膠帶。標(biāo)準(zhǔn)的耐火形式的材料是聚氯乙烯，但它有一定的局限性，特別是應(yīng)用在傾斜面的傳輸。為了克服這個(gè)缺點(diǎn)，覆蓋層為丁腈橡膠即100%的聚丙烯腈丁二烯，與天然橡膠相比，它具有更大的優(yōu)勢(shì)。丁腈橡膠的覆蓋層在運(yùn)輸面和驅(qū)動(dòng)面都適用，它增加了摩擦系數(shù)和增加了驅(qū)動(dòng)力。對(duì)于水分含量高的煤和其他的礦物質(zhì)，膠帶表面光滑是它的一個(gè)重要特征。一個(gè)最大的優(yōu)勢(shì)是這樣的表層沒有聚氯乙烯的表面光滑。整芯編織結(jié)構(gòu)的膠帶的一個(gè)重要特征是它的結(jié)構(gòu)消除了層芯結(jié)構(gòu)的缺點(diǎn)，并且還有良好的運(yùn)載力抗磨損能力和抵抗礦物油的腐蝕。
現(xiàn)代的的整芯編織結(jié)構(gòu)是使用一把雙刃劍系統(tǒng)而非穿梭系統(tǒng)。為了減少所需時(shí)間，它需要改變緯線的部分。同時(shí)也為了能整理好織邊。編織過(guò)程完成后，帶芯就轉(zhuǎn)交給整理工藝，即使與聚氯乙烯的復(fù)合，另外在表面涂上適當(dāng)?shù)哪湍ゲ牧希钤趶埩ο聣褐瞥尚汀?
除了滿足英國(guó)的的要求外，還需要滿足下述的耐火的規(guī)定和315牛頓到2625牛頓每米膠帶寬的拉伸強(qiáng)度要求：
澳洲 丙二醛系列 250 國(guó)際的國(guó)際標(biāo)準(zhǔn)組織 R340
加拿大 第 4 起草號(hào)碼 M422-M 的南非 SABS 971
法國(guó) NF-M81-651 U. S .A USBM 預(yù)定 2G
德國(guó) DIN 22103/4
某一產(chǎn)品包括皮帶的縱向拉伸強(qiáng)度分布在315千牛每米到1000 千牛每米，相關(guān)的橫向拉伸強(qiáng)度分布在158千牛每米到350千牛每米。縱向和橫向強(qiáng)度比列不一致，它們的比列相應(yīng)的從50%降低到30%。高強(qiáng)度的皮帶的縱向強(qiáng)度增加到2625千牛每米，而橫向的強(qiáng)度仍然為350千牛每米。結(jié)果，縱橫比很快的降到了11.4%，這是很有必要的的，以便滿足拖棍的的軌跡。
（3）鋼繩芯結(jié)構(gòu)
隨著高強(qiáng)度抗拉皮帶的需求，便產(chǎn)生了相應(yīng)的皮帶加固要求。即在較高水平的情況下，即使是人造的最高強(qiáng)度的纖維也不能滿足使用要求，結(jié)果便用鋼繩芯結(jié)構(gòu)來(lái)代替使用，它的縱向強(qiáng)度由鋼絲繩來(lái)承擔(dān)。這樣的皮帶的制造工藝分為兩個(gè)部分，（a）聚酯混合產(chǎn)生一個(gè)中心層和兩個(gè)覆蓋層，（b）鋼絲繩的組裝，在張力按一個(gè)曲線過(guò)程進(jìn)行軋制。
已發(fā)現(xiàn)多種耐火材料，和防靜電的彈性材料 ，并且繩索的垂直的在大于1毫米的情況下會(huì)導(dǎo)致彈性材料壓力和張力的失效。如果存在設(shè)計(jì)缺陷，就會(huì)產(chǎn)生這樣的問題。這些問題可以通過(guò)使用彈性體硬度在60到68度的的彈性材料來(lái)克服。在運(yùn)輸裝置駕駛中，力矩限制裝置和密切駕駛都可以減少疲勞。
在英國(guó)，Sebly綜采的皮帶的具體參數(shù)如下：
運(yùn)輸裝置長(zhǎng)度 1300 毫米 帶厚 28.3 毫米
帶寬 1300 毫米 帶的強(qiáng)度 6590 千牛每米
鋼絲數(shù)量 57 根 垂直舉起距離 990 毫米
繩索直徑 13.1 毫米 電機(jī)功率 10100千瓦
驅(qū)動(dòng)輪
必須承認(rèn)，滑輪或滾筒的設(shè)計(jì)技改進(jìn)有并未跟上整個(gè)磁頭的技術(shù)的發(fā)展。逐漸地，柔性的帶子允許使用在較小的直徑滾筒上，對(duì)于給定的帶速，這個(gè)滾筒旋轉(zhuǎn)得更快。皮帶本身也有很快的速度，特別是在焊接處，造成高速滾筒的失效，這都?xì)w因于高疲勞負(fù)載。
所有與滾筒應(yīng)力的相關(guān)設(shè)計(jì)和計(jì)算，必須明確循環(huán)應(yīng)力的比例。樞紐撓度必須低于臨界壓力并且要求焊縫為E等級(jí).輪的疲勞因素至少在1.3至1 之間。疲勞因素比列：最大允許應(yīng)力幅值與實(shí)際應(yīng)力幅值之比應(yīng)該大于1.3。
對(duì)于無(wú)限的壽命—都是所有滾筒設(shè)計(jì)的目標(biāo)。應(yīng)該指出疲勞極限不少于10^8。
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