"Lifting equipment installation construction and acceptance norms" according to the National Planning Commission Comprehensive (1986) No. 450 requirements, the former Ministry of Machinery Industry editor. Specific revision by the mechanical installation engineering standards Dinge Zhan organization, Ministry of Machinery Industry Beijing Materials Handling Research, the China Construction Machinery Corporation to install mechanized company and manufacturer of hoist equipment and the use of key units jointly revised.
In the revision process, the revision of the original group conscientiously sum up the experience gained since the implementation specification; fully understand our lifting equipment manufacturing industry standardization and research; absorbed lifting equipment installation engineering new technologies, new materials and new processes.manual hoist In strict accordance with the Ministry of Construction revision of standards, standardized procedures, procedures and requirements, and finally the former Ministry of Machinery Industry in conjunction with the relevant departments to review the finalized.
This specification is divided into twelve chapters and four appendices, amendments to the main contents of the following areas:
1 in accordance with the situation of the crane manufacturing industry, revised the types of lifting equipment installation specifications scope, adding some new lifting equipment.
(2) amend the original specification of the 1970s, due to objective conditions, standardization is far from perfect.load chain Now lifting equipment manufacturing standards, mostly adopting international standards and foreign advanced technology selected equivalent standards. Therefore crane equipment installation specifications test items, technical requirements and parameters are larger changes, such as lifting equipment commissioning.
3 lifting equipment installation engineering need to check or review geometric precision, fully consider the case of lifting equipment factory, transportation and storage and other factors that may cause deformation, through research, surveys and all concerned triage and determined. So test items have a greater change.
4 lifting equipment installation commissioning from the device out of the box to play until the whole grid project acceptance. The commissioning of the installation works explicitly include load, static load and dynamic load test load test; and through these trials, lifting equipment required to measure the mid-span camber cantilever deflection and static stiffness. These tests and measurements for normal safe operation of
hoist equipment are very important parameters; otherwise prone to persons or equipment accidents.
5 increase the lifting equipment on any precision detection methods, measurement tools and other necessary corrections appendix.
6 terms, terminology, shape and position tolerances, measurement units at the prevailing national standards and lifting equipment manufacturing industry regulations, there is greater changes.