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如何控制电动葫芦作业中摇晃
[来源:www.futejixie.com] [作者:567zx] [日期:19-04-13]

如何控制电动葫芦作业中摇晃 How to control the shaking of electric hoist assignments 我们常常会收到客户反馈,反映电动葫芦有作业中产生摇晃。河北赛能起重技术专家在此分析一下电动葫芦在作业中的摇晃的原因: We often receive customer feedback, reflecting the electric hoist shaking with homework. Hebei game can lifting technology experts in the analysis of the causes of electric hoist shaking in the homework: (1)最主要的就是惯性。一般出现在运行启动和运行停止时。水平方向的启动与停止比上升和下降时产生的摇晃机率和幅度最大。 (1) the most main is inertia. Generally appear in the run up and running to stop. The start and stop of horizontal direction than the rise and fall when the shaking probability and sharpest. (2)如果说摇晃的幅度取决于惯性的大小,那么惯性的大小又是由什么决定的呢?是由速度差的大小决定的。对于单一速度来说,就取决于速度的快慢。例如:静止时,速度为0m/nin,运行速度常速为20m/min.那么水平运行时,启动和停止时就会出现速度由0-20m/min或者20-0m/min的跨跃。这时就会产生慢性,速度差为20。如果运行速度是5m/min,启动和停止时就会出现速度由0-5m/min或者5-0m/min的跨跃,速度差为5。速度差大的比速度差小的产生的慢性大,摇晃同样也大。同理,上升和下降也是这样。 (2) if the swaying amplitude depends on the size of the inertia, so the size of the inertia is determined by what? Is determined by the size of the speed difference. For a single speed, it is depends on the speed of the speed. Such as stationary, the speed of 0 m/nin, running speed constant velocity of 20 m/min. Then the horizontal run, can appear when starting and stopping the speed is from 0 to 20 m/min or 20 - leaping 0 m/min. At this moment can produce chronic, speed difference to 20. If speed is 5 m/min, can appear when starting and stopping the speed is from 0 to 5 m/min or 5-0 m/min leaping, speed difference is 5. Differential velocity greater than the speed of small chronic, shaking too big. By the same token, the rising and falling. (3)同样的速度差的情况下,下垂的链条或者是绳索越长的,惯性越大,摇晃幅度越大。当同一额定载额,同一提升速度的两台电动葫芦,分别吊同一物体时。提升高度30M的电动葫芦吊物时,摇晃幅度则大于提升高度30M以下的如提度高度为6M、9M的电动葫芦。这一点,在有外界环境的影响下更为明显,如有风的情况下。 (3) under the condition of same speed difference, prolapse of the chain or rope is long, the greater the inertia, the greater the shake. When the same rated load, at the same speed of two sets of electric hoist, crane respectively when the same object. The electric hoist crane hoisting height 30 m on it, shake it greater than 30 m below the hoisting height degree of lift height is 6 m, 9 m electric hoist. This, in under the influence of the external environment is more apparent, such as windy conditions. (4)当同一型号同一规格的两台电动葫芦,即额定载额相同、提升和速度相同、提升高度相同时,分别吊同一物体时,绳索或者是链条等越细的电动葫芦,摇晃率越大。钢丝绳电动葫芦尽量不要用乱缠绳,同一额定载额、同一提度高度、同一提升速度的电动葫芦,乱缠绳的摇晃率比有导绳器的钢丝绳电动葫芦大。 (4) when the same type the same specifications of the two sets of electric hoist, namely the rated load amount, hoisting height is the same speed and and at the same time, respectively, the same object, a rope or chain electric hoist, such as the thinner, the shaking ratio increases. Wire rope electric hoist as far as possible not to use rope, the same rated load amount, the same height, the same speed of electric hoist, the sway of the rope rate than some guide line of steel wire rope electric hoist. (5)同一台电动葫芦,所吊物体外形状态不同时,产生的摇晃也不同。一般来说电动葫芦只能吊没有生命的物体,不可以吊人,其实也最好不要吊动物。动物也是有生命的,是活的,它在在起吊过程中挣扎、活动,这样就会生产起吊中的不稳定性。就会发生摇晃,这种摇晃是没有规律的、不可以控制的。很容易出现超载现象,是非常危险的。相对来说,吊没有生命的比有生命的摇晃幅度小,而且更安全。即使是没有生命的物体,外型不规则,吊挂或者捆绑不牢,受力不均,或者是液态的,对摇晃的影响也是很大的。 (5) the same electric hoist, lifting objects' state of shape at the same time, the sway of the produce is different also. In general electric hoist can only inanimate objects, not people, also had better not hanging animals actually. Animals are living, is alive, it struggled to cope with in the process of lifting, activities, and so will the instability in the lifting of production. The shaking occurs, the shaking is not regular, you can't control. It is easy to appear overload phenomenon, is very dangerous. Relatively speaking, hanging lifeless life than the shake is small, and safer. Even inanimate objects, the shape is irregular, hanging or bind not firm, uneven, or liquid, is also a great influence on shaky. (6)同一台电动葫芦,所吊物体重量不同时,产生的摇晃也不同。但这一点就不太好判定。当然这一点也是不可避免的,电动葫芦本来就是吊运物体的。只要不超载,都可以正常使用。所以,这一条不算在内。 (6) the same electric hoist, lifting objects' weight at the same time, the sway of the produce is different also. But it is not so good. Which is also the inevitable, of course, electric hoist is lifting objects. As long as you don't overload can be normal use. So, this article do not count. 如果想在电动葫芦作业中不产生摇晃是不可能的。有速度、有吊重、有高度就会产生摇晃。河北赛能起重建议使用者可以从以下几方面去着手,来尽可能地减少摇晃: If you want to be in the electric hoist assignment does not produce the shaking is impossible. Speed, hoisting, highly tends to shake. Hebei game can lifting suggest users can begin from the following aspects, to reducing the shaking as much as possible: 1、 速度如果是单速度的,可以用慢速度。但考虑工作效率的情况下,又不想速度太慢,那么就选择变频的。 1, if it is single speed speed, can use a slow speed. But under the condition of considering the efficiency, and don't want to be too slow, then choose frequency conversion. 2、 有其它办法的情况下,尽量不要越高吊物。 2, there are other ways of case, try not to lift the higher. 3、 不要用太细的绳索和链条,能双绳就双绳,能双链就双链。绳和链条的行数越多,就越稳定,不过相对来说,这样的速度也就越慢。而且多绳的钢丝绳电动葫芦本体体积也越大。所以视情况而定。 3, don't use too thin ropes and chains, could be double rope, double rope could be double-stranded double chain. Rope and chain is the more the number of rows, the more stable, but relatively speaking, this speed will be slow. The size and the wire rope electric hoist line, ontology has the greater. So, as the case may be. 4、 所吊物体尽量是无生命的固体,一定不要超过电动葫芦的额定载额,吊液态的不要过满。要吊挂捆绑牢固。 4, the hanging object is inanimate solids as far as possible, must not exceed the rated load of electric hoist, lifting liquid don't too full. To hang bind firmly. 5、 非双钩或者非同步群吊的电动葫芦,不要用于群吊,要听从厂家建议。(来源:中国起重机网) 5, the double hook or asynchronous group of crane electric hoist, don't used for hanging, listen to manufacturers recommendations. (source: China crane network)

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