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MG400940-WD型电牵引采煤机截割部的设计【10张CAD图纸和说明书】

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关键词：: mg400940 wd 牵引采煤机截割部设计 10 cad 图纸以及说明书仿单

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摘要 II

Abstract III

第一章绪论 1

1.1本课题研究意义 1

1.2 国内电牵引采煤机的技术特点及发展趋势 2

1.2.1 采煤机的技术特点 2

1.2.2 采煤机的发展趋势 3

1.3 总体方案的确定 4

1.3.1 采煤机类型 4

1.3.2 采煤机的组成 4

1.4截割部结构及技术特征 6

1.4.1截割部传动方式确定 6

1.4.2 电动机的选择 8

第二章传动参数的确定 9

2.1总传动比的计算 9

2.2传动比的分配 9

2.3确定各轴的转速n、功率P、转矩T 10

第三章齿轮啮合参数及强度计 11

3.1齿轮的初步设计及强度校核 11

3.1.1第一级减速齿轮传动设计计算及强度校核 12

3.1.2 第二级减速齿轮传动设计计算及强度校核 15

3.1.3 三级减速齿轮传动设计及计算 19

3.1.4 一级减速中惰轮轴的齿轮设计计算及校核 22

3.1.5 三级减速中惰轮轴的齿轮设计计算及校核 24

3.2 行星减速机构的齿轮设计计算及校核 26

第四章轴及轴承的设计 31

4.1轴的结构设计及其强度校核 31

4.1.1 Ⅰ轴的结构设计及其强度校核 31

4.1.2 Ⅱ轴的结构设计及其强度校核 36

4.1.3 Ⅲ轴的结构设计及其强度校核 41

4.1.4 Ⅳ轴的结构设计及其强度校核 47

4.1.5 Ⅴ轴的结构设计及其强度校核 53

4.1.6 Ⅵ轴的结构设计及其强度校核 57

4.1.7 大齿轮轴的结构设计及其强度校核 58

4.2 轴承的选用及其校核 64

4.2.1 Ⅰ轴上轴承的选用及其校核 65

4.2.2 Ⅱ轴上轴承的选用及其校核 66

4.2.3 Ⅲ轴上轴承的选用及其校核 66

4.2.4 Ⅳ轴上轴承的选用及其校核 67

4.2.5 Ⅴ轴上轴承的选用及其校核 68

4.2.6 Ⅵ轴上轴承的选用及其校核 69

第五章截割部的润滑及密封 69

结论 72

参考文献 73

摘要

MG400/940-WD型采煤机是一种电牵引大功率采煤机，该机机身矮，装机功率大，所有电机横向布置，机械传动都是直齿传动，电机、行走箱驱动轮组件等均可从老塘侧抽出，故传动效率高，容易安装和维护。

本说明书主要介绍了采煤机截割部的设计计算。MG400/940-WD 型采煤机截割部主要是由四级齿轮传动组成，截割部电机放在摇臂内横向布置，电动机输出的动力经由三级直齿圆柱齿轮和一级行星轮系的传动，最后驱动滚筒旋转。截割部采用四行星单浮动结构，减小了结构尺寸，采用大角度弯摇臂设计，加大了过煤空间，提高了装煤效果。

在设计过程中，对截割部的轴、传动齿轮、轴承和联接用的花键等部件进行了设计计算、强度校核和选用。本说明书主要针对主要部件的设计计算和强度校核进行了叙述和介绍。

此外，还对MG400/940-WD采煤机的使用与维护进行了说明，以便能更好的发挥该采煤机的性能，达到最佳工作效果。

关键词：采煤机；截割部；行星轮系；齿轮传动设计

Abstract

The MG400/940-WD type mining machine is that a kind of electricity draws the high-power mining machine, this machine fuselage is low, Installation is large in power, all electrical machineries are fixed up horizontally, mechanical drive is all the transmission of straight tooth, electrical machinery, walk case drive wheel package etc. can take from old pool side out, so the transmission is high in efficiency, easy to install and safeguard.

Calculate in design which cuts the cutting department of main introduction mining machine of this manual. It is made up of a moderate breeze gear wheel transmission that the MG400/940-WD type mining machine cuts the cutting department, cut the electrical machinery of cutting department and put to fix up horizontally in the rocker arm, the power that the motor outputs leans on a round of transmission of department of gear wheel and planet round via the tertiary straight tooth, urge the cylinder to rotate finally. Cut the cutting department and adopt the floating structure of four planetary forms, have reduced the physical dimension, adopt the large angle to curve the rocker arm to design, have strengthened the space of coal, have improved the coal result of putting.

In the course of designing, to cutting the axle of the cutting department, gear wheel of the transmission, parts such as the bearing and spline linking using, etc have designed to calculate, the intensity is checked and selected for use. This manual mainly designs for main part one calculating to check with the intensity have narrated and introduced.

In addition，returning use for MG400/940-WD mining machine and maintenance proves, In order to be able to good full play performance of person who should mine, reach the best working result.

Keyword: Mining machine ；the cutting department ； A department of planet ；Gear wheel of the transmission Design

第一章绪论

1.1本课题研究意义

为了提高工作面的生产效益, 世界主要采煤国均纷纷致力于发展大型先进的综采设备, 取得了显著的效果, 综采工作面的生产能力和效益均大幅度提高。我国经济的快速发展对煤炭需求大幅度增加,年产超600万t高产高效工作面得到快速发展,大功率采煤机的市场需求日益增加。电力电子技术、微电子技术、计算机计术的飞速发展,为开发集电力电子、信息采集、微机控制及智能监测系统于一身的大采高重型电牵引采煤机创造了条件。我国在90 年代初致力发展高产高效工作面,开发了日产7000t 综采成套设备, 但能真正实现高产高效的工作面依然较少, 主要原因是受采煤机生产能力的限制, 高产高效工作面要求采煤机具有高可靠性、大截割功率、大牵引力、大牵引速度, 并能较快发现故障和处理故障。

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内容简介：: 英文原文The Technical Situation and Development Trend of Electrical Haulage ShearersAbstract： In this paper，the technical development history and technical situation of electrical haulage shearersfor thin seam of China are reviewed，and the main technical parameters，general structure，serialization anddevelopment trend of such sheares are introducedKeywords： thin seam；shearer；electrical haulage；multimotor driving；transverse arrangementGerman Eickhoff company and American JOY company, the mid 70s in 20 centuries develops a direct current to lead to adopt coal machine one after another.Henceforth, each mainly adopted coal machine a research a manufacturing a company to all lead to adopt coal machine to carry on to the electricity in the world a great deal of of study a development.80The age expected to appear alternate current to lead to adopt coal machine behind.90Age, the big power electricity which develops to gather electronics, micro-electronics, information management and calculator intelligence technique in the integral whole leads to adopt coal machine, like the LS series of American JOY company, British Long-Airdox the Electra, SL series of the company, the EDW, SL series of German Eickhof company, three wells in Japan three pond creation the MCLE-DR of series etc. the electricity lead to adopt coal machine.The electricity leads to adopt coal machine good and dependable sex with its function parameter Gao, automation degree Gao, operation convenience, supervision protection and examination the function perfect and economic performance Gao Deng3s advantage be quickly expanded an usage.1 The foreign electricity leads long to adopt the coal machine development general situation1.1German Eickhof companyAfter 1976 developped successful direct current to lead to adopt coal machine, it was basic to stopped a liquid to press to lead a development research of adopt the coal machine and continuously developped various form electricities to lead to adopt coal machine.90The SL series that the age develop is horizontal to arrange the alternate current lead to adopt coal machine, cut to mow electrical engineering to arrange in shaking arm.Among them, the S type electricity leads to adopt coal machine to pack machine power to reach to one 580 kWs, biggest lead dint 998 LSOkNs.SL300 type electricity leads to adopt coal machine to always pack machine power one 018 kWs, the adoption double change once the Pin machine drag along one system, biggest lead speed to reach to 54.5 ms/rai system the system have to hand over with each other a type a person the machine dialogue, equipments healthily forecasts, the on-line control, data deliver etc. function.1.2 :British Long-Airdox companyAfter 1984 developped success the first set cut to mow electrical engineering to arrange at many decorations with horizontal electrical engineerings of shake the arms get Electra550 type direct current led to adopt coal machine, at its foundation top enlargement power, and then develop into an Electra1000 type direct current to lead to adopt coal machine.90Age, on the model foundation of the Electra series, enlargement power, the improvement controls system, developped EL series alternate current to lead to adopt coal machine and the main model contains EL600, EL1000, EL1500, EL3000 type.At EL series model up equip of the Impact integrate protection and supervise and control system and have burden to control, machine supervision, adopt coal machine to automatically position, automatically key up, district control, the intelligence turn safe catena and random break down diagnosis, data to deliver etc. function.1.3American JOY company2070s in centurys developping successfully a 1 ls many electrical engineerings is successfullyhorizontal to arrange the direct current after lead adopt coal machine continuously developped a 2 IS ISs-7s again etc. type many electrical engineerings are horizontal to arrange the direct current lead to adopt coal machine.71.55 adopt the coal machine total power one 940 kWs, lead the speed 30 ms/min.Adopt a strong dint sells a track to have no chain to lead system, the enlargement chain track stanza is apart from with width, and adopt a forging to sell a row;Equip and 6 LS5 type the in general use JNA machine carry calculator information center and have persons machine communication interface, break down diagnosis sketch to show and store, wireless control from a distance, lead functions such as control and protection etc1.4 Japan1987The year continuously develops to succeed various series alternate current of the MCLE-DR which mow electrical engineering to lengthways set outs to lead to adopt coal machine behind and developped to cut many electrical engineering alternate currents of mow the electrical engineering horizontal decorations to lead to adopt coal machine again for the last few years.Adopt the coal machine has tiny machine work condition a monitor and breaks down diagnosis system, can the numerical manifestation lead speed, roller position, stay a bottom coal thickness, electrical engineering load and everywhere temperature, have wireless remote control, and can add infrared ray shoot the machine manipulate a liquid to press a support.1.5 Poland the KOMAG mine for minerals a mechanization research centerPoland continuously developped KSE in developping successful KSE a 344 thin coal seam alternate currents with Chinese cooperation to lead foundation of adopt the coal machine a 360, KSE a 700, KSE one 800 RWs/2 BPs, KSE a 535 Ss/2 BPs, KSE1000 type etc. alternate current lead to adopt coal machine.Adopt the coal machine cuts deeply from 630171111 raise 800-1000 mms.1.6 RussiaThe former Soviet Union 70s in 20 centuries develops a K128 Is-Is.The direct current after lead adopt coal machine develops to succeed various direct currents to lead to adopt coal machine one after another again.9The age of the o developped K a 8 etc. alternate currents to lead to adopt coal machine.Every consider, the electricity of Russia leads to adopt coal machine power smaller, the direct current lead and the function parameter is lower.2 The local electricity leads to adopt the coal machine development general situationIn recent years.The our country electricity led to adopt develop of coal machine to obtain a substantial progress with development, carry on two developments in digesting to absorb abroad to usher in to adopt the coal machine technical foundation and owned many have an independent intelligent property right of change a product, at our country coal mine comprehensive the mechanization adopt coal work noodles, coal science studies total Shanghai branch in the hospital and Poland cooperates, after the local initiative develop successful our countrys first adoption exchanges change Pin adjust soon technical thin coal seam to climb scaleboard to adopt coal machine, branch in Shanghai again successively develop succeed cut to mow the alternate current that the electrical engineering lengthways sets out to lead to adopt coal machine and cut to mow electrical engineering horizontal set out of be applicable to in thick with the alternate current of thinner coal seam lead to adopt coal machine, and succeed applied at the Jin city, Huai south, Xu2 Zhou, big equal mineral duty bureau.3 Technique characteristics and develop trend3.1 pack machine power to enlarge.The function parameter raise(1)The single set piece mows electrical engineering power all in the 400 kWs above.The most adopts the coal machine single set piece to mow electrical engineering power to already arrive 6 OO kW, the 7 LS5s adopts the coal machine single set piece to mow electrical engineering power to be up to 750 kWs.(2)Lead power all above in the 80 kWs, biggest already 220 kWs.(3)Always pack machine power more than one 000 kWs, reach to one 94 OkWs such as the 7 LS5s, the EL3000 always packs machine power as tallest as 2000 kWs.(4)Lead speed and lead dint to significantly raise.Lead the speed l 5-25 ms/min, lead the dint 500 kNs above.Biggest lead speed 54.5 ms/rain(SL300), biggest lead dint 998 kNs.(5)Cut to mow power aggrandizement, the support random pays to protect of realization, the enlargement roller cuts deeply.The l is 0 year agos and cut deeply mostly is a 630-700 Inll1s, widespread now adopt 1000-1200 Zis to cut deeply, separately attain 1500 Infnses to cut deeply.(6)The exaltation adopts the coal machine credibility with can utilization.The abroad adopts coal machine a dollar a parts a design life span:The wheel gear 12500 hs, the bearings is 20000-30000 hses, the electrical engineering insulates the life span 44000 hs, and the roller adopts coal 640,000 ts.Adopt coal machine to greatly fix a period for 2 years, the coal measure 300-5,000,000 ts.Our country requests that adopting coal machine coal measures a 150-2,000,000 ts but not and greatly fixs, the margin is very big.3.2 medium high pressure power suppliesAlong with adopt coal machine to pack the machine power significant exaltation, the work noodles continuously lengthens, the whole work noodles capacity works over the 5000 kWs the noodles length attain 300 ms.In order to reduce power line road to exhaust, quality and electrical engineering function of the exaltation power supply, high pressure power supply in the widespread adoption.The main power supply grade has a 2300, 3300, 4160 and 5000 V etc3.3 supervisions protection system intelligence turnThe modern electricity leads to adopt the intelligence that the coal machine all has establishment in the microprocessor foundation to turn supervision, monitor and protection system, can carry out to hand over with each other type person machine dialogue, wireless control from a distance, the work condition monitor and appearance show, the data collect to save and deliver, health(break down) diagnosis and with early warning, auto control, automatically key up etc. various functions, adopt the coal machine maintenance quantity least by assurance, the utilization is the tallest, and can carry out to press a support with liquid and work the noodles transport the information of machine to hand over with each other with allied move a control etc. function.Such as Anne virtuous Sen company EL series the model up equips Impac:The t integrates protection and supervision system, the Eichhof of the Eichhof company a data gathers together technique system, the JOY company 6 LS type the electricity lead the JNA network information center of adopt the coal machine etcSupervise and control protection system intelligence to turn main function:(1)Load the control passes the monitor that the piece mows electrical engineering electric current, adjust to adopt lead of coal machine speed and make to adopt coal machine under the different work condition with superior turn of the parameter carry on a work and promise to spread to move system to dont easily be continuously pounded at influence;(2)Work noodles fixed position controls identifying to adopt coal machine is work the position of noodles, automatically decelerate in the machine head, machine tail with stop, match with a realization auto with support to random move;(3)Transport machine with work noodles allied machine burden the control pass a burden monitor of transport the machine to regulate to adopt the adopt of coal machine amount of coal and make to adopt coal machine and transport the production ability of machine to match mutually;(4)Automatically keying up a control will have the coal rock boundary of certain resolution to identify to spread a feeling machine to combine a calculator control and constitute a coal rock boundary to spread feeling device and coal rock boundary to identify system.Have already apply to physically or just be placed in research at the production currently with experiment the coal rock of stage identify a method and analytical the system mainly have:Remember the intelligence distance control, the analytical and natural D of the vibration frequency chart shoot line, measure dint to cut Chi, radioisotope, Zao voice the infrared ray, radar probe into etcRemember an intelligence distance to control a coal rock boundary to identify and control system among them an application at most is what foreign main model adopt to automatically key up a technique currently in actually the production.But radars probing into a technique to be think be a kind of coal rock boundary which have application foreground mostIdentify a method;(5)Circulate appearance supervision and manifestation adopts coal machine a data to collect systemCan collect machine parameter:If the Eickhof company SL series adopts coal machine a material to have MICOS68 mineralses to use tiny machine system, main course 10 single submenus include to adopt coal luck to go appearance;Automatically manipulate;Cut to mow a parameter;Lead a parameter, liquid presses system parameter, each examination to order temperature, each electric motor electric current;Water measure, water pressure;Control system soft, hardware model number;Diagnosis, early warning(password) etc., the most protection item can hand over a way to with each other shield through persons machine;(6)The data deliver, agreeable slot control and ground supervisions adopting the coal machine long range communication and work noodles concentration a control technique be the marking of modern mineral well.(7)Expert system and breakdown diagnose data and information from the examination and movement parameter of the supervision, function with former machine maintenance, usage the circumstance carry on a comparison, carry on diagnosis to the healthy movement of machine, can also to particular mistake and recommend the project provide risk valuation.3.4 electricities lead system to adjust to soon develop toward the exchangesThe electricity leads to adopt a lead of coal machines method to press the type of lead the electrical engineering and can is divided into direct current to lead and communicates to lead.The electricity in earlier period leads to adopt coal machine to mostly adopt direct current to adjust soon system.Develop success from the mid 80s of Japan 20 centuries the first set alternate current lead to adopt coal machine and communicate that adjusting soon system is advanced with its technique, dependable sex Gao, the maintenance manage in brief, the price cheap etc. advantage, drive quick expansion application.9The big power electricity expected to develop behind in the age of the o lead3.6 have no chain to lead toward the wheel gear one Chi track the type turn intoAlong with lead continuously enlarge of the dint, sell a round one Chi track types having no chain to lead have already eliminate, wheel gear one chain track types having no chain to lead have already not much use as well, now adopt coal machine have no the chain lead to just and gradually incline toward adoption wheel gear one Chi track type have no the chain lead, this is 1 kind from the wheel gear on selling a track type to turn in to since then have no chain to lead structure, cylinders sell is replace by the Chi track and weld structure to change whole nicety cast or forge, the width enlarge, the stanza is apart from to increase tofrom the 125 mms l 75 mms.4 The local electricity leads to adopt the coal machine research contentsThe local electricity leads to adopt coal machine a representative model and foreign electricity to lead to adopt coal machine to compare and have already near in the total parameter function foreign 20 centuries age initial stage of 9 o level.But some key partses and it the total function, function, orientation scope.etc. still treat further perfect with raise.Particularly on-line work condition monitor, breakdown diagnosis and forecast, the signal deliver and adopt coal machine to automatically control, spread a feeling machine etc. the intelligence turn technique and abroad to compare to still have a bigger margin.As a result the local electricity leads intelligence of adopt the coal machine to turn degree low, the equipments credibility, safety with can support sex worse, the local electricity will lead to adopt coal machine from now onMain research contents is as follows:(1)Further perfect communicate with exaltation change the Pin adjust soon credibility of lead the system.The point is perfect and raises system device of anti- earthquake, spread hot and defend tide etc. function;(2)The research dependable tiny machine electricity controls system.Point is the exaltation adopts coal machine the electricity controls the system anti- interference, anti- hot effect of ability;(3)Development or to build up the electricity control the supervision function of system.Point is the research breaks down diagnosis and expert system, the works condition monitor, manifestation and information to deliver system and work the noodles adopt coal machine to automatically circulate control system and change from the orientation Pin electric circuit of electric leakage examination and protection technique, shake arm to automatically key up system etc.;(4)Development can the mineral of four quadrant movements use to communicate change the Pin adjust to soon equip.Make to adopt coal function to adapt the demand that bigger Qing Cape coal seam mine;(5)The development packs machine power to largerly adopt coal machine, the exaltation adopts coal machine can the research of utilization and life span;(6)The research that the electric appliances component is small scaled to turn.In order to packing machine power to enlarge, electric motor, transformer, change Pin machine etc. the physical volume of the equipments also corresponds aggrandizement, for satisfy whole the machine structure arrange tightly packed of request, have to study an equipments small scaled turn of technique path.中文译文电牵引采煤机的技术现状和发展趋势现摘要：本文介绍了我国薄煤层电牵引采煤机的技术发展历史和现状，重点介绍薄煤层电牵引采煤机的主要技术参数、总体结构、系列化及其发展趋势。关键词：薄煤层；采煤机；电牵引；多电机驱动；横向布置德国 Eickhoff 公司

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