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A display of the characteristics of the crane

Time2017/8/31 PostHenan Weihua Heavy Machinery Co., Ltd.

Different types of cranes have different purposes,vary according to the working time and the load of the crane,the crane usually work types are divided into:light level,intermediate level,heavy and heavy four levels. Henan Weihua is a professional crane equipment manufacturer.Lets take a look at the different features of the crane:

The work type and weight of the crane are two different concepts.The weight of the crane is large,not necessarily heavy,and the weight is small,and it is not necessarily light.Such as water power station with the crane lifting weight of hundreds of tons,but very few use opportunity,is only used when installing unit and repair unit,the rest of the time is down there,so even though the weight is very big,but still belongs to the light level.The gantry crane,such as the station yard,is not very heavy,but it is very busy and belongs to the type of heavy duty.

      The work type of crane is closely related to safety performance.Lifting weight, span, lifting height of the same crane, if different type of work, in designing and manufacturing, the safety factor is not taken by the same, or different parts model, size, specification.If the wire rope and brake are different due to different type of work, the safety factor is different (light level safety factor is small and the safety factor is large), and the selected model is different.As a bridge crane with 10t, the power of lifting motor for intermediate work type (JC = 25%) is N = 16KW, while the lifting motor power for the heavy duty type (JC = 40%) is N = 23.5 KW.

       From the above situation, if the crane of light duty type is used in the place of heavy duty type of work, the crane will often fail and affect safe production. Therefore, in the security check, we should pay attention to the type of crane work must be consistent with the working conditions.

     Characteristic curve of crane: the envelope of three curves of crane structure, carrying capacity, lifting capacity of boom and stability of overturning stability of whole machine.

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