机械5

摘要 MG400/900-WD型采煤机是一种多电机驱动，横向布置的交流电牵引采煤机。根据采煤机现在的发展动态通过分析与比较，确定了采煤机的牵引方式，并且对牵引部的基本参数进行了详细的计算，介绍了行走部传动系统的拟定；传动装置的运动及动力参数的计算；各个齿轮的几何尺寸的确定；以及轴、行星齿轮和花键的设计计算和校核。 牵引电机输出的转矩经三级圆柱齿轮和二级行星齿轮减速器减速后，由行星架输出，通过驱动轮与行走轮相啮合，再由行走轮与工作面刮板输送机上的齿轨啮合使采煤机来回行走，同时制动轴输出轴通过键与制动器相连，实现电牵引部的制动。 MG400/900-WD型采煤机，操作方便，可靠性高，事故率低，开机效率高，可满足高产高效工作面的需要。 关键词：采煤机；牵引部；行走部；行星齿轮 Abstract The MG300/900-WD coal mi
ni
ng machi
ne is more tha
n o
ne ki
nd of motor-drive
n, crosswise arra
ngeme
nt alter
nati
ng curre
nt hauli
ng coal mi
ni
ng machi
ne. TAccordi
ng to the coal mi
ni
ng machi
ne
now developme
nt through a
nalysis a
nd compariso
n, determi
ne the shearer tractio
n, a
nd the tractio
n of the basic parameters are calculated i
n detail, i
ntroduces thewalki
ng part of the tra
nsmissio
n system of the protocol; tra
nsmissio
n device of ki
nematic a
nd dy
namic parameters calculatio
n; each gear to determi
ne the geometric size, a
nd shaft; pla
netary reductio
n gear a
nd spli
ne desig
n calculatio
n a
nd checki
ng. he pulli
ng motor outputs torque decelerates after the third-level cyli
ndrical gears a
nd the seco
nd-level pla
net gear reductio
n gear, by the pla
net carrier outputs,withwalks li
ni
ng o
n the feet a
nd palms of buddha meshi
ng through the drivi
ng gear, bywalks agai
n rou
nd a
nd o
nworki
ng surface scraper co
nveyer's rack rail meshi
ng causes the coal mi
ni
ng machi
ne back a
nd forth towalk, simulta
neously the brake spi
ndle output shaft is co
n
nected through the key a
nd the brake, realizes the electricity hauli
ng departme
nt brake. The MG400/900-WD coal mi
ni
ng machi
ne, the ease of operatio
n, the reliability is high, the accide
nt rate is low, the starti
ng efficie
ncy is high, may satisfy the high productio
n highly effectiveworki
ng surface the
need. Keyword: The coal mi
ni
ng machi
ne； the hauli
ng departme
nt；walks； 目录 摘要I Abstract II 1引言- 1- 1.1采煤机械发展的历史- 1- 1.2国外采煤机的发展状况- 1- 1.3国内采煤机的发展状况- 3- 1.4电牵引采煤机产生和发展- 4- 1.5采煤机类型- 5- 1.6采煤机的组成- 6- 1.7电牵引采煤机的优点- 7- 2.牵引机构传动系统- 8- 2.1主要技术参数- 8- 2.1.1电动机的选择- 9- 2.1.2传动比的分配- 11- 2.2.牵引部传动计算- 13- 3.牵引部齿轮设计计算- 16- 3.1齿轮1和齿轮2的设计及强度效核- 16- 3.2齿轮3和齿轮4的设计及强度效核- 25- 3.3齿轮5和齿轮6的设计及强度效核- 32- 4.牵引部行星机构的设计计算- 39- 4.1配齿计算- 39- 4.2行星齿轮的计算- 41- 4.3行星轮啮合要素验算- 54- 5轴的设计及校核- 58- 5.1确定轴的最小直径- 58- 5.2花键的强度校核- 70- 5.3轴承的校核- 72- 6采煤机的使用和维护- 74- 7总结- 76- 参考文献- 77- 致谢- 78-