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Forum 起重机选用
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Related

起重机选用

YYD
YYD over 14 years ago

(1) 单主梁和双梁门式起重机的选用

  一般情况下,起重量在50t以下,跨度在35m以内,无特殊使用要求,宜选用单主梁式。如果要求门腿宽度大,工作速度较高,或经常吊运重件、长大件,则宜选双梁门式起重机。

  (2) 跨度和悬臂长度

  门式起重机的跨度是影响起重机自身质量的重要因素。选择中,在满足设备使用条件和符合跨度系列标准的前提下,应尽量减少跨度。

  (3)轮距的确定原则

  (a)能满足门架沿起重机轨道方向的稳定性要求;

  (b)货物的外形尺寸要能顺利通过支腿平面钢架;

  (c)注意使轮距B与跨度S成一定比例关系,一般取轮距B=(1/4—1/6)S。

  (4)门式起重机间距尺寸确定

  在工作中,门式起重机外部尺寸与堆场的货物及运输车辆通道之间应留有一定的空间尺寸,以利于装卸作业。一般运输车辆在跨度内装卸时,应保持与门腿有0.7m以上的间距。吊具在不工作时应与运输车辆有0.5m以上的间距,货物过门腿时,应有0.5m以上的间距。

  (5)门式起重机电气设备的选用

  它应符合通用门式起重机GB/T14406—1993的有关规定。

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