Jib crane boom margins mainly use (pitching) rotation around the vertical axis with lifting goods, the use of flexible action to meet the loading requirements, in the form of fixed, mobile and floating. Fixed jib crane mounted directly on the dock or pier base library field, can only work in situ. Some of the boom is not only pitching rotation, and some can tilt can be reversed.
2013年12月12日星期四
Lifting machinery safety procedures
Lifting machinery safetysteel crane have been enacted 25 years of GB/T6067-1985 "hoisting machinery safety regulation, in June 1, 2011 by GB6067.1-2010" hoisting machinery safety procedures part 1: general rules "(hereinafter referred to as the new rules) replacement, the new rules focus on system safety, to adapt to the application of new technology, new material and update of the standards, in line with international standards. The new regulations as a hoist gantry crane national standards, to improve lifting machinery safety requirements, to reduce the lifting accident rate and ensure the safe operation of the hoisting machinery, will play a positive role in promoting. The new regulations mainly has the following characteristics. To adapt to the extensive and comprehensive system the new procedure from system concept, highlight the partition of security system and induction, is a adapt to the extensive and comprehensive system of hoisting machinery safety technical guidance. First of all, the new regulations applicable to the design, manufacture, installation, alteration, maintenance, use, scrap, check and so on eight aspects, than in the past the old rules added three parts installation, modification, maintenance. Secondly, the new regulations in order to adapt to the special requirements of various types of lifting machinery safety technology, considering from the function of the hoisting machinery and institutional characteristics, the old rules broken down into seven parts, the first part is the general rules; The second part as mobile crane; The third part is the tower crane.
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