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【行业百科】山工装载机的变矩器及变速箱常见问题(一)

  • 分类:行业资讯
  • 作者:小编
  • 来源:
  • 发布时间:2024-11-13 08:58:56
  • 访问量:

【概要描述】  山工变速箱有前进4挡位,后退4挡位■■,总共8个挡位■,这样可以更好的应对更多更复杂的工况。   泵轮通过弹性板与发动机飞轮连成一体,同速同向

【行业百科】山工装载机的变矩器及变速箱常见问题(一)

【概要描述】  山工变速箱有前进4挡位,后退4挡位■■,总共8个挡位■,这样可以更好的应对更多更复杂的工况。   泵轮通过弹性板与发动机飞轮连成一体,同速同向

  • 分类:行业资讯
  • 作者:小编
  • 来源:
  • 发布时间:2024-11-13 08:58:56
  • 访问量:

  山工变速箱有前进4挡位◆◆,后退4挡位■★◆■★,总共8个挡位◆■◆★◆,这样可以更好的应对更多更复杂的工况。

  泵轮通过弹性板与发动机飞轮连成一体,同速同向旋转,发动机高速旋转,迫使油液沿叶片间通道向外切向甩出。以极大的速度和冲力冲击涡轮叶片。

  第二个原因■◆■★■,是蓄能器内部弹簧疲劳,无法快速供油,导致短期内蓄能器提供的压力不足◆◆★。很多维修师傅反应山工变速箱修一次之后就用不足了,很多情况下是因为忽视了蓄能器的作用。换了很多配件■■■,但唯独没有更换蓄能器导致的。

  涡轮是变矩器的被动轮■■◆。它外沿的叶片接受来自泵轮甩出的工作油液冲击之后◆◆◆◆★,涡轮便产生旋转■◆★■★★。同时内沿接受高速流出液流冲击在固定不动的导轮上的反作用力,实际上涡轮在两个力的作用下旋转★■★■■■,所以增大了输出扭矩。也就是说来自泵轮油液的动能又转换为涡轮旋转的输出机械能。

  在操纵阀的后面位置,有一个气控截止阀◆◆,它的作用是,在我们踩刹车的时候,切断油路★◆★。保护离合器片★■★◆◆■。踩刹车时■◆■◆◆,离合器片分离★★■■,变速箱就不工作了。

  通过变矩器后的扭矩增大倍数。例如■◆■◆■:变矩系数◆◆“3”,及增大了发动机输出扭矩的 三倍◆■★。

  装载机的是靠油的压力把离合器片压紧来传递动力。其中前进离合器、后退离合器、1:3离合器、2◆★◆:4离合器,所有的离合器的主动片和从动片都是一样多的。

  (1)传递转矩■■◆。发动机的转矩通过液力变矩器的主动元件,再通过ATF传给液力变矩器的从动元件★★◆◆★,最后传给变速器。

  (3) 自动离合。液力变矩器由于采用ATF传递动力,当踩下制动踏板时,发动机也不会熄火■■◆,此时相当于离合器分离;当抬起制动踏板时■★,可以起步,此时相当于离合器接合◆■■◆。

  另外一个原因就是序号24、25之间有一个单向阀,里面有一个小钢球,很多维修师傅在维修完之后并没有清洗单向阀这个位置★■◆■◆◆,导致这里密封不严★◆,很容易导致压力不足◆◆,摩擦片摩擦过度,导致烧片。

  定轴指的是所有的离合器轴都是固定在箱体上面的。位置不变动的■■◆。且所有的轴都是平行的◆★。

  像单涡轮的变矩器就叫做单极三元件,比如山工变矩器,如果是双涡轮,那就是双极四元件变矩器。

  在序号16到19之间,有一个类似活塞的结构★◆◆★■★,在压力油的作用下推动压紧这些离合器片◆■★◆■,这样就实现动力的传递。

  我们可以先形象的打个比喻,当我们把两个风扇对着放在一起,打开其中一个,通过第一个吹出来的风,就可以带动第二个的转动。

  375泵轮、涡轮工作时◆■★■,液体的有效循环圆直径

  免责声明■◆★■◆◆:本文援引自厂商或其他媒体,与铁甲网无关◆■■■◆★。其原创性以及文中陈述文字和内容未经本站证实,对本文以及其中全部或者部分内容◆◆★◆■◆、文字的真实性、完整性、及时性本站不作任何保证或承诺◆◆,请读者仅作参考,并请自行核实相关内容!

  发动机传递的动力是刚性的,当直接遇到大的阻力的时候会被憋熄火,所以变矩器的作用,一是当遇到大的阻力的时候■★■◆,可以保护发动机◆■,防止发动机熄火◆◆★★。第二个作用就是增加输出的扭矩◆■■,把原来刚性的动力变成柔性的液力动力。

  变矩器的动力传递与之相似,但不是通过风来传递了★■■◆,而是改成通过油来传递动力■★。

  (2) 无级变速◆★◆■。根据工况的不同,液力变矩器可以在一定范围内实现转速和转矩的无级变化■★★★■。

  同时由于采用ATF传递动力,液力变矩器的动力传递柔和,且能防止传动系过载发动机熄火。

  在平时的时候,操纵阀来油控制蓄能器内阀杆压紧弹簧★★★■◆★。当进行换挡时候★■★◆,阀杆回位■■,切换油路★◆◆★◆,使换挡间隙时,油路可以将之前储存好的油立马供应到相应离合器位置。实现快速补油换档。

  (4)驱动油泵。ATF在工作的时候需要油泵提供一定的压力■■◆■◆◆,而油泵一般是由液力变矩器壳体驱动的◆★。

  液力变矩器位于发动机和机械变速器之间,以自动变速器油(ATF)为工作介质■◆★,主要完成以下功用:

  从变矩器的进口压力阀开始分流,其中一路就进入变速箱,目的就是用这个压力油来压紧离合器,这个地方的压力呢,是1.4--1.7MPa。然后通过变速分配阀的控制,让油进入前进离合器★◆■■◆、后退离合器、1:3离合器或2:4离合器◆★■★■,实现油的分流■◆。

  2024 年中国 bauma 展■■◆◆:维特根集团隆重推出面向亚洲市场的新产品和新技术

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