品牌:丹尼逊
发货:3天内
T6C 025 3R02 B1
武穴黎翔机电设备有限公司,询价联系人:何女士
询价电话:0713-6542758,手机:18934630908
询价传真:0713-6542758
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现货特价型号:R900925687 4WRAE10W1-30-22/G24N9K31/F1V 2台
0811402141 DBETBEX-1X/315G24K31F1M 2台
定子具有圆柱形内表面,定子和转子间有偏心距。叶片装在转子槽中,并可在槽内滑动,当转子回转时,由于离心力的作用,使叶片紧靠在定子内壁,这样在钉子、转子、叶片和两侧配油盘间就形成若干个密封的工作空间,当转子按图示的方向回转时,在图的右部,叶片逐渐伸出,叶片间的工作 空间逐渐增大,从吸油口吸油,这是吸油腔。在图的左部,叶片 被定子内壁逐渐压进槽内,工作空间逐渐缩小,将油液从压油口压出,这是压油腔,在吸油腔和压油腔之间,有一段封油区,把吸油腔和压油腔隔开,这种叶片泵在转子每转一周,每个工作空间完成一次吸 油和压油,因此称为单作用叶片泵。转子不停地旋转,泵就不断地吸油和排油。 二、单作用叶片泵的流量计算 泵的实际输出流量为 单作用叶片泵的流量也是有脉动的,理论分析表明,泵内叶片数越多,流量脉动率越小,此外,奇数叶片的泵的脉动率比偶数叶片的泵的脉动率小,所以单作用叶片泵的叶片数均为奇数,一般为13或15片。 三、特点 (1)改变定子和转子之间的偏心便可改变流量。偏心反向时,吸油压油方向也相反;
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(2)处在压油腔的叶片顶部受到压力油的作用,该作用要把叶片推入转子槽内。为了使叶片顶部可靠地和定子内表面相接触,压油腔一侧的叶片底部要通过特殊的沟槽和压油腔相通。吸油腔一侧的叶片底部要和 吸油腔相通,这里的叶片仅靠离心力的作用顶在定子内表面上; (3)由于转子受到不平衡的径向液压作用力,所以这种泵一般不宜用于高压。 (4)为了更有利于叶片在惯性力作用下向外伸出,而使叶片有一个与旋转方向相反的倾斜角,称后倾角,限压式变量叶片泵 1.外反馈限压式变量叶片泵的工作原理 限压式变量叶片泵是单作用叶片泵,根据前面介绍的单作用叶片泵的工作原理,改变定子和转子间的偏心距e,就能改变泵的输出流量,限压式变量叶片泵能借助输出压力的大小自动改变偏心距e的大小来改变输 出流量。当压力低于某一可调节的限定压力时,泵的输出流量最大; 压力高于限定压力时,随着压力增加,泵 的输出流量线性地减少,其工作原理如图2-8所示。 泵的工作压力愈高,偏心量就愈小,泵的输出流量也就愈小,控制定子移动的作用力是将液压泵出口的压 力油引到柱塞上,然后再加到定子上去,这种控制方式称为外反馈式。 2.限压式变量叶片泵的特性曲线 限压式变量叶片泵在工作过程中,当工作压力p小于预先调定的限定压力pc时,液压作用力不能克服弹簧 的预紧力,这时定子的偏心距保持最大不变,因此
使工程师能够及时对产品的属性进行调整。以往我们在设计过程中都是迫于一些外部的环保条例或者客户的强制性要求,比如ROHS法规
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、环保回收料的使用等,很少去主动发掘自己设计结果对环境所造成的影响,在SolidWorks2010新版本中,我们就可以很直观的来考虑这些问题。
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其次就是软件操作的便捷性,进一步缩短了用户的操作时间,这里面的改进主要是增加了一些操作的直观性。这其中的一系列改进非常多,主要有3大块改进比较突出:
1、常用命令的直观显示及便捷操作,比如这次新版本加入的鼠标笔势,改变了过去软
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件的菜单模式,以前我们在操作过程中,点开右键菜单,无论是有用的功能还是没用的功能都罗列在其中,为了便捷还会去设定许多的快捷键,然而现在,只需要根据自己的需求进行设定,各种图标就能非常直观的显现出来
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。2、尺寸公差也是在工程图绘制过程中经常会遇到的,也是一个重要环节,往往很多产品的品质问题都是由于公差的累积误差,使原始设计方案产生一系列的问题,调整的频率也是非常之高。在2010版本中可以通过直观的方式进行标注,极大的便利了工程图的绘制工作。
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024-03529-002S T6C 025 3R02 B1
024-03529-003S T6C 025 3R03 B1
024-51243-003S T6C 031 3L03 B1
024-51048-500S T6C 031 3R00 B5
024-40951-000S T6D 020 1L00 B1
024-31019-000S T6D 020 1R00 B1
024-31019-001S T6D 020 1R01 B1
024-31019-501S T6D 020 1R01 B5
024-26327-000S T6D 024 1L00 B1
024-25895-000S T6D 024 1R00 B1
024-03582-003S T6D 028 1L03 B1
024-03125-000S T6D 028 1R00 B1
024-03125-500S T6D 028 1R00 B5
024-03125-001S T6D 028 1R01 B1
024-03125-002S T6D 028 1R02 B1