![]() ![]() The calculation of a two-jaw rope grapple with long links can be performed with the help of methods. It must be noted that in the existing works on this subject this task hasn’t been set at all. The solution of this problem is possible by calculating the parameters of the grapple with the help of a computer. The grapple quality criterion is the ratio of its mass to the crane load capacity, so the optimal choice task is to reduce the mass fraction of the grapple and to increase the share of payload within the crane load capacity. ![]() The performance and cost of loading and unloading operations depend on the quality of grapples and the degree of their specialization in relation to different operating conditions and properties of goods. Grab cranes are widely used in the handling of bulk cargoes in transport, industry and construction.
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