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Lifting machinery is essential in the modern production process, production equipment, and it plays an important role in the economic construction. Lifting machinery, however, is the mechanical equipment bears the most dangerous factor, the occurrence of the accident is most likely the special equipment at home and abroad every year due to lifting equipment, lifting operation caused a lot of property damage and personal injury accidents. As one of the four bodies of the crane hoisting mechanism, it is responsible for the transfer of goods to enhance and location, it is the most frequently used agencies cranes, cranes major accidents occur at home and abroad, since the lifting mechanism caused the accident possession large proportion such as the Liaoning Tieling steel mills accident; at home and abroad had undertaken extensive research it has achieved fruitful results, and played a positive role in reducing the crane caused the accident. Prone to failure in the course of this paper crane hoisting mechanism, characteristics and overall system reliability calculation difficult to reliability theory based on fuzzy theory, fuzzy probability formula is derived, combined with powerful Access database storage ability, easy to read and use a wide range of features, the use of VC programming language development crane hoisting mechanism reliability calculation software, not only to achieve the different crane hoisting mechanism reliability calculation, but also record the parts of different crane hoisting mechanism lapse of time, providing a valuable source of data for future research. Crane hoisting mechanism reliability analysis software can achieve different tonnages, different types (single-lifting type, double-lifting type), different failure criteria (in accordance with the time scrapped scrapped), in accordance with the standards, the different operating parameters (rated starting weight, span, lifting height, working level, work environment) reliability of estimates of crane hoisting mechanism, but also draw a crane hoisting mechanism of reliability (each cutset bottom events, and failure occurred probability) analysis report for a single starting liters type and lifting type crane hoisting mechanism reliability assessment feasible ways and means, a wide range of applications. The research abandoned a the traditional crane site monitoring inspection process, tedious process and a large number of inputs, to provide a new and effective method for the special equipment on-site detection, and the establishment of special equipment safety dynamic regulatory mechanism to provide technical support for our country.
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