监控及视频会议系统方案.doc
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1、器的主要传动零件进行强度校核。使用有非金属弹性元件的联轴器时,还应注意联轴器所在部位的工作温度不要超过该弹性元件材料允许的最高温度。三、下面介绍几种联轴器的具体参数:1、凸缘联轴器:传递转矩大,不吸收震动,容易产生附加载核,通常用于工作平稳的一般传动,要求安装精度非常高。型号公称转矩/(Nm)许用转速/(r/min)轴孔直径d、d/mm轴孔长度D/mmD/mmb/mmb/mms/mm转动惯量/(kgm)质量/kgY型J型GY1GYS1GYH1251200012,1432278030264260.00081.1616,18,194230GY2GYS2GYH2631000016,18,194230
2、9040284460.00151.7220,22,245238256244GY3GYS3GYH3112950020,22,24523810045304660.00252.3825,286244GY4GYS4GYH4224900025,28624410555324860.0033.1530,32,358260GY5GYS5GYH5400800030,32,35,38826012068365280.0075.4340,4211284GY6GYS6GYH6900680038826014080405680.0157.5940,42,45,48,5011284GY7GYS7GYH71600600048,
3、50,55,5611284160100405680.03113.160,63142107GY8GYS8GYH83150480060,63,65,70,71,751421072001305068100.10327.580172132GY9GYS9GYH963003600751421072601606684100.31947.880,85,90,951721321002121672、齿式联轴器:是可移式刚性联轴器用途最广的一种,结构紧凑,承载能力大,使用的速度范围广,可以补偿两轴相对位移,适用于重载或高速运转的水平传动轴的联型号公称转矩/(Nm)许用转速/(r/min)轴孔直径d、d、dz轴孔长度
4、LDD1D2BACC1C2e转动惯量/(kgm)质量/kgYJ1、Z1/mmCLCL1800710016,18,1942-12595601157520-300.0095.920,22,24523810-2425,2862442.5-1930,32,35,3882601522CLCL21400630025,286244145120751358810.5-29300.029.730,32,35,3882602.512.53040,42,45,481128413.528CLCL32800590030,32,35,38826017014095155106324.525300.04717.240,42,
5、45,48,50,55,561128417286014210735CLCL45000540032,35,388260195165115178125143732300.09124.940,42,45,48,50,55,56112843172860,63,65,7014210735CLCL58000500040,42,45,48,50,55,561128422518313019814232528300.1673860,63,65,70,71,751421072035801721322243CLCL611200480048,50,55,561128424020014521816063535300.2
6、6748.260,63,65,70,71,751421074203580,85,901721322243CLCL715000450060,63,65,70,71,7514210726023016024418043535300.45368.980,85,90,95172132224310021216748CLCL821200400065,70,71,7514210728024517526419353535300.64683.380,85,90,951721322243100,11021216748注:1.J1型轴孔根据需要也可以不使用轴端挡圈 2.本联轴器具有良好的补偿两轴综合位移的能力,外形尺
7、寸小、承载能力高,能在高转速下可靠的工作。适用于重型机械及长轴连接,但不宜用于立轴的连接。3、滚子链联轴器具有结构简单(四个件组成)、装拆方便、拆卸时不用移动被联接的两轴、尺寸紧凑、质量轻、有一定补偿能力、安装精度要求不高、工作可靠、寿命较长、成本较低等优点,滚子链联轴器应在良好的润滑并有防护罩的条件下工作。滚子链联轴器基本参数和主要尺寸(GB/T6069-85)型号公称转矩Tn/Nm许用转速n/rmin-1轴孔直径d1、d2轴孔长度链号链条节距齿数ZDbf1sADkmaxLkmax质量m/kg转动惯量I/kgm2许用补偿量不装罩壳安装罩壳Y型J1型径向y轴向x角向/()LL1GL140140
8、0450016、18、1942-06B9.5251451.065.34.9-70700.400.00010.191.41412052384GL263125045001942-06B9.5251657.085.34.9-75750.70.000220、22、2452384GL31001000400020、22、24523808B12.71468.887.26.71285801.10.000380.251.92562446GL4160100040002452-08B12.71676.917.26.7-95881.80.0008625、286244630、328260-GL5250800315028
9、62-10A15.8751694.468.99.2-1121003.20.00250.322.330、32、35、3882644011284GL6400630250032、35、38826010A15.87520116.578.99.2-1401055.00.005840、42、45、48、5011284GL7630630250040、42、45、48、50、551128412A19.0518127.7811.910. every night2接排句(Run-on Sentence)所谓接排句就是两个或更多的句子混合交织在一起,而没有正确的标点符号标明它们之间关系的句子。这样的句子,意思含混不
10、清,使读者不能理解各部分之间的关系。接排句有两种形式:一是融合句(fused sentence),即在句子之间没有标点符号和句间连接词;另一种更为常见的形式是逗号连接(comma splice),即没有并列连词,只用逗号代替分号和句号,把两个完整的意思连接起来.请看例句:Fused Sentences 1. The girls scored higher in math the boys scored higher in verbal skills2. Gestures are a means of communication for everyone they are essential f
11、or the hearing-impairedComma Splices 1. Education is an elusive word, it often means different things to different people2. Hikers would especially enjoy a vacation at Yellowstone National Park,the park consists of two million acres of backcountry改正接排句的基本方法可根据句子之间的不同关系分为以下5种1.用句号分隔。当长句或两个句子之间的关系不是很密
12、切或毫无 关系时,可使用这种方法。例如:Revised Sentences The girls scored higher in mathThe boys scored higher in verbal skillsGestures are a means of communication for everyoneThey are essential for the hearing-impaired Education is an elusive wordIt often means different things to different people Hikers would espec
13、ially enjoy a vacation at Yellowstone NationalParkThe park consists of two million acres of backcountry2 用分号隔开。用分号连接两个独立的分句时,它们之间的关系 在意义和语法结构上比起使用句号时,关系较紧密。Revised Sentences The girls scored higher in math;the boys scored higher inverbal skills Gestures are a means of communication for everyone;they
14、are essential for the hearingimpaired Education is an elusive word;it often means different thingsto different people Hikers would especially enjoy a vacation at Yellowstone National Park;the park consists of two million acres of backcountry3使用并列连词连接。当接排的句子之间关系紧密,容易辨别且 合乎逻辑时,可以借助并列连词来连接,通常在这些连词前要 加上
15、逗号。Revised Sentences The girls scored higher in math,andbut the boys scoredhigher in verbal skills Gestures are a means of communication for everyone, butthey are essential for the hearingimpaired Education is an elusive word,for it often means differentthings to different people Yellowstone Nationa
16、l Park consists of two million acres ofbackcountry,and hikers would especially enjoy a vacationthere4使用连接副词连接。根据作者的意图和句子的需要。接排的句 子可以使用连接副词来连接。这时,句子之间要用分号。在连接副词的后面还要加逗号,但是一般在单音节的连词后不加逗 号。如so,yet。thus等.Revised Sentences The girls scored higher in math;however,the boys scored higherin verbal skills Ges
17、tures are a means of communication for everyone; neverthe1ess,they are essential for the hearing-impaired Education is an elusive word; indeed, it often means differentthings to different people Yellowstone National Park consists of two million acres of backcountry; therefore, hikers would especiall
18、y enjoy a vacation there5.使用从属连词、关系副词或关系代词连接. 当可以判断出一个句子从逻辑上或意义上从属于另一个句子时, 可以将此接排句 改写成复合句。Revised SentencesThe girls scored higher in math,while the boys scored higherin verbal skillsAlthough gestures are a means of communication for everyone,they are essential for the hearing-impairedThe power fail
19、ure caused a blackout which created a lot ofproblemsHikers would especially enjoy a vacation at Yellowstone NationalPark,which consists of two million acres of backcountryDirections: Revise the following run-on sentences1 Women no longer need to move into the traditionally male professions they have
20、 already opened most of the doors to desirable career paths2I called for a reservation at a famous restaurant in town,all the tables were taken before the Dragon Boat Festival3Eric was late to work he ran all the wayRevised sentences1Women no longer need to move into the traditionally male professio
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