刮板运输机论文中英文对照资料外文翻译文献.doc

scraper conveyortraction with scraper chain, in the bed of the delivery of bulk material conveyor called scraper conveyor. scraper conveyor trough in the middle of the adjacent level can be limited vertical bending is called flexible scraper conveyor. one body in the face and transport interchange roadway was 90-degree bending of the face conveyor set called scraper conveyor corner. coal face in the current, the scraper conveyor is not only the delivery of coal and materials, but also a shearers orbit, so it into a modern coal mining process of the major equipment indispensable. scraper conveyor functions to maintain continuous operation, production can be carried out normally. otherwise, the whole coal face production status will be shown, so that disruption of the entire production. scraper conveyor components by what? various types of scraper conveyor of the main structure and composition of the basic components are the same, it is by the head, middle and tail of three machine parts. in addition, for over conveyor equipment used hydraulic jacks and tight chain tight when the subsidiary components such as chains. machine head by the head frame, motor, fluid coupling, reducer, such as pieces of the composition and sprocket. the transition from the central trough, the central groove, scraper chain and the composition of such pieces. rear scraper plane for the return of the device chain. heavy-duty scraper conveyor tail and nose of the same are also provided with power transmission devices, from the install location to distinguish under the name on the nose and head. scraper conveyor of work? scraper conveyor of the working principle and basic structure, and our country in the years 186-189 ad between the invention of roll-over - water is the same keel. however, the use of scraper conveyor transported materials kibbling is the beginning of this century developed in the united kingdom industry. scraper conveyor early, simple structure and light, then it is only used to transport coal, manual loading of coal; low transport capacity, a maximum of only a few dozen tons per hour; conveyor only tens of meters in length;-power small, traction chain the intensity is not high. after years of improvement and development, with fully mechanized coal mining face of the scraper conveyor, in addition to coal, there are four functions: to the shearer for orbit; to pull shift hydraulic support for fixed-point shift care ; clean up floating face coal; hoisting cables, pipes, tubes, etc. emulsion. scraper conveyor in fully mechanized coal face shearer and hydraulic support and co-ordination work. scraper conveyor of the working principle is to open the chute, as coal, waste or materials, such as pieces of the bear will be fixed in the chain scraper (scraper chain component), as components of traction. when the department of nose after transmission, the chain wheel drive shaft rotating head, so that the cycle runs driven scraper chain stores along the chute to move the head up to the unloading machine. scraper chain sprocket for no class to bypass the closed cycle operation, the completion of the delivery of materials. scraper conveyor what advantages and disadvantages?scraper conveyor is the main advantages and disadvantages: advantages: 1, the structure of a solid. can withstand coal, waste or other materials of red, hit, hit, pressure and other external force.2, able to adapt to uneven floor coal face, bending over the need for vertical or horizontal can withstand the bending direction. 3, body short, easy to install. 4, can act as shearer orbit. 5, can reverse run, easy to deal with the accident at the end of chain. 6, fluid can be the fulcrum of the preceding night stand. disadvantages: 1, no-load power consumption of a greater power for the total about 30%. 2, not long-distance transmission. 3, prone to swap chain, jumped the accident chain. 4, consumption of steel and more. costs.scraper conveyor through several stages of development? scraper conveyor in the production of coal mine development and construction, more or less gone through three stages. the first phase of 30-40 years, is detachable scraper conveyor, which can only be a straight line in the face with the laying, with the face forward, need manual demolition, removal, assembly. scraper chain plate, more than a single chain, such as v-type, sgd-11 type, sgd-20 type, such as low-power light scraper conveyor. the second stage is the early 40s from germany to produce flexible scraper conveyor, with shearer, metal stent with a mechanized mining. cough such scraper conveyor to adapt to uneven floor and the level of convex curved surfaces, such as conditions shift, is not required for demolition, and coal have also increased, such as the model sgw-44-type scraper conveyor is the phase of the representative products. into the 60s as a result of the emergence of hydraulic support, in order to meet the needs of fully mechanized mining, scraper conveyor to the third phase of development, developed a cough sheathed high-power heavy-duty scraper conveyor bending, such as sgd-630/75 type, sgd -630/180 type belonging to this stage is the product. to the 70s, with a large number of applications shearer, a sgw-40, sgw-44-type scraper conveyor can be curved to achieve the non-disintegration and sub-delivered non-stop since the transfer, transport capacity to 200 t / h. since the 80s, will soon face the development of transportation equipment, due to the emergence of new types of coal cutter, scraper conveyor has a vastly different situation. shearer to be a result of walking in the conveyor, conveyor requires not only strength to ensure stability in the work of shearer, and to match production capacity with the shearer to keep the scraper conveyor of heavy development. models are representative of sgw-150 and sgw-250 type. with the emergence of high-power shearer, a number of scraper conveyor of power has reached 800 900 kw, the transport capacity of 2000 2500t / h, can yield 300 to adapt to face four million t / a production-scale requirements of 3. scraper conveyor 90 during transport capacity in order to achieve the 3500t / h, from the corresponding width 730 760mm increased to 980 1100mm, chain speed from 1m / s increased to about 1.57m / s, scraper conveyor has the power 1600kw.at present, with the coal face of increasing production capacity, scraper conveyor major trends are: 1, big traffic. countries have advanced the development of coal transport capacity of up to an hour 1500t (80s) 3500t (90s) of the scraper conveyor. 2, long distance transport. stage in order to reduce the coal mining area of the loss column, increase the length of face, the length of scraper conveyor has reached more than 335 meters. 3, high-power electric motors. electrical power has been developed to the single-speed motor of 525kw, two-speed motor 500/250kw. 4, long life. as a result of the use of large-diameter ring chain, an increase of the intensity of scraper chain, extended the life span of scraper conveyor, coal machine had reached more than 6,000,000 tons.new type of scraper conveyordown the coal mining, or other useful minerals, and only have value out of mine. therefore, the process of coal production and transport is a very important part. scraper conveyor coal shipment is the first link, the scraper conveyor of transmission capacity in the coal face to a large extent determines the capacity and efficiency. however, in the face of transport and underground tunnel, and roadway conditions are based on coal, according to the needs of the mining method, the integration of the requirements of the rock in the coal seam or cut out. therefore, the underground transport is characterized by the conditions: cross-section of the roadway in a limited run; line is staggered and tilted to connect; transport of goods in a variety of cargo; loading points often change, and some lines need to be extended or shortened; mechanized mining coal production, hours of high productivity; environmental humidity, and some workplaces have gas or coal dust. it can be seen that as a coal face and the coal mining area of roadway machinery - scraper conveyor in use, it is necessary to bear the pull, pressure, bending, impact, friction and corrosion and other effects, there must be sufficient strength, stiffness, wear resistance and corrosion resistance. mode of transport because of its materials and scraper chain sliding in the bed, running resistance and wear great. however, the coal in the coal face, there is no better machine to replace it. only from the structure, strength and manufacturing processes to look at improving constantly, making it more comprehensive, durable. this shows that the scraper conveyor is to transport coal and other minerals essential for the transport machinery.scraper conveyor in the coal mine fully mechanized coal mining face major task is to take the coal shearer continuously reproduced to machine, to ensure that the fully mechanized coal mining face straight out of the coal. scraper conveyor in coal mines, chemical mines, metal mines and power plants and other materials used to transport an important means of transport. it is from the central tank, chain, scraper and traction system. among them, the central scraper conveyor trough is a major part of the central trough of steel has nearly a hundred years of history, in the course of a long-term use of the following shortcomings: the weight of large, time-consuming installation and removal; central trough is generally 6 15mm from the plate made by the larger deformation of the shock easy, more difficult to repair; poor corrosion resistance; poor wear resistance; the materials and the friction coefficient of the central trough, and the power scraper conveyor large part of consumption in the materials and the friction on the central trough, resulting in excessive energy consumption, increased investment. uhmwpe is used to create scraper conveyor in the plate, steel plate to resolve the problems, the plastic scraper conveyor. for small scraper conveyor can be modified to produce ultra-high molecular weight polyethylene scraper conveyor. shearer for the above large-scale walking scraper conveyor, it is necessary to adopt the method of composite steel with ultra-high molecular weight polyethylene as a lining, large-scale scraper conveyor to increase the wear resistance, long life, low friction coefficient, which lower power consumption and reduction of the traction drive system requirements, this large-scale scraper conveyor of great significance. this product is developed by the shandong university of science and technology, can be used in coal mines, chemical mines, metal mines and power plants, such as transport of materials.function of the scraper conveyor generally 25 in the use of the following conditions. scraper conveyor in use, it is necessary to bear the pull, pressure, bending, impact, friction and corrosion and other effects, therefore, must have sufficient strength, stiffness, wear resistance and corrosion resistance. mode of transport because of its materials and scraper chain sliding in the bed, transport and abrasion resistance are great. however, the coal in the coal face, there is no better machine to replace it. only from the structure, strength and manufacturing processes to look at improving constantly, making it more comprehensive, durable.刮板输送机ks刮板输送机用刮板链牵引，在槽内运送散料的输送机叫刮板输送机。刮板输送机的相邻中部槽在水平、垂直面内可有限度折曲的叫可弯曲刮板输送机。其中机身在工作面和运输巷道交汇处呈90度弯曲设置的工作面输送机叫“拐角刮板输送机”。在当前采煤工作面内，刮板输送机的作用不仅是运送煤和物料，而且还是采煤机的运行轨道，因此它成为现代化采煤工艺中不可缺少的主要设备。刮板输送机能保持连续运转，生产就能正常进行。否则，整个采煤工作面就会呈现停产状态，使整个生产中断。刮板输送机是由哪些部件组成？各种类型的刮板输送机的主要结构和组成的部件基本是相同的，它由机头、中间部和机尾部等三个部分组成。此外，还有供推移输送机用的液压千斤顶装置和紧链时用的紧链器等附属部件。机头部由机头架、电动机、液力偶合器、减速器及链轮等件组成。中部由过渡槽、中部槽、链条和刮板等件组成。机尾部是供刮板链返回的装置。重型刮板输送机的机尾与机头一样，也设有动力传动装置，从安设的位置来区分叫上机头与下机头。刮板输送机的工作原理是什么？刮板输送机的工作原理和基本结构，与我国在公元186至189年间发明的“翻车”龙骨水车是相同的。可是，用刮板输送机运送散碎物料，是在本世纪初出现于工业发达的英国。早期的刮板输送机，结构简单轻便，那时它仅是运煤之用，人工装煤；运输能力低，每小时最多只有几十吨；输送机长度只有几十米；功率小，牵引链的强度也不高。经过多年的改进和发展，目前综采工作面用的刮板输送机，除了运煤之外，还有四种功能：给采煤机作运行轨道；为拉移液压支架作托移固定点；清理工作面的浮煤；悬挂电缆、水管、乳化液管等。刮板输送机在综采工作面与采煤机和液压支架配套工作。刮板输送机的工作原理是，将敞开的溜槽，作为煤炭、矸石或物料等的承受件，将刮板固定在链条上（组成刮板链），作为牵引构件。当机头传动部启动后，带动机头轴上的链轮旋转，使刮板链循环运行带动物料沿着溜槽移动，直至到机头部卸载。刮板链绕过链轮作无级闭合循环运行，完成物料的输送。刮板输送机有什么优缺点？刮板输送机主要优缺点是：优点:1、结构坚实。能经受住煤炭、矸石或其他物料的冲、撞、砸、压等外力作用。2、 能适应采煤工作面底板不平、弯曲推移的需要，可以承受垂直或水平方向的弯曲。3、机身矮，便于安装。4、能兼作采煤机运行的轨道。5、可反向运行，便于处理底链事故。6、能作液夜支架前段的支点。缺点:1、空载功率消耗较大，为总功率的30%左右。2、不宜长距离输送。3、易发生掉链、跳链事故。4、消耗钢材多。成本大。刮板输送机的发展经过几个阶段？刮板输送机在煤矿的生产与建设中的发展，大致经历了三个阶段。第一阶段在30-40年代，是可拆卸的刮板输送机，它在工作面内只能直线铺设，随工作面的推进，需人工拆卸、搬移、组装。刮板链是板式，多为单链，如v型、sgd-11型、sgd-20型等小功率轻型刮板输送机。第二阶段是40年代前期由德国制造出可弯曲刮板输送机，它与采煤机、金属支架配合实现了机械化采煤。这种刮板输送机咳适应底板不平凸凹凸不平和水平弯曲等条件，移设时不需拆卸，并且运煤量也有所增大，如当时的型号sgw-44型刮板输送机就是这个阶段的代表产品。进入60年代由于液压支架的出现，为了适应综采的需要，刮板输送机发展到了第三阶段，研制出大功率铠装咳弯曲重型刮板输送机，如sgd-630/75型、sgd-630/180型等就是属于这个阶段的产品。到了70年代，随着采煤机的大量应用，出现了sgw-40、sgw-44型可弯曲刮板输送机，实现了不解体和不停运分段自移，运输能力提高到200 t/h。80年代以来，工作面运输设备发展很快，由于各种新型采煤机的出现，刮板输送机已大为改观。因采煤机要在输送机上行走，不仅要求输送机强度大，保证采煤机工作稳定，且要与采煤机生产能力相匹配，促使刮板输送机不断向重型化发展。代表机型有sgw-150和sgw-250型。随着大功率采煤机的出现，一些刮板输送机的功率已达800900 kw，运输能力达20002500t/h，能适应工作面单产300400万t/a的生产规模要求3。90年代刮板输送机的运输能力