What are the technical standards for bridge cranes?
The optimal design of bridge crane is a complex system evaluation and multi-objective decision-making optimization problem involving many factors such as electromechanical design, manufacturing technology, energy consumption, safety and environmental protection, etc. The overall requirement is to achieve economic The goal of comprehensive optimal benefit, environmental benefit and social benefit.
The factors that affect technology can generally be analyzed by quantitative analysis, while some factors that reflect the processability, environmental protection and economy cannot or are not easy to use numerical expressions, and qualitative analysis is required. For a single general-purpose bridge crane, the equipment weight, outline size, limit size, speed control performance, manufacturing and installation processability (including the length of the period from production to commissioning) are indicators for assessing the design level. However, in addition to evaluating the above indicators for series design, it is also necessary to evaluate such as: standardization coefficient (mainly refers to the degree of generalization), the coverage rate of series product parameters to meet conventional needs (mainly refers to the degree to which product parameters meet conventional needs, and also refers to series design The convenience of adapting to non-standard changes), derivability (referring to the convenience of extension and modification of basic products to other derivative series) and other comprehensive indicators.
Some indicators cannot be directly quantitatively assessed and need to be given by means of expert scoring. Therefore, the assessment indicators have a certain degree of relative accuracy and relative inaccuracy (fuzziness) related to human factors.
