Let you know about these cranes

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Information about Let you know about these cranes
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Published on March 17, 2014

Author: ytcrane

Source: authorstream.com

Let you know about these cranes: Let you know about these cranes Cheng machinery industry is expected to usher in dividend policy : Cheng machinery industry is expected to usher in dividend policy Not long ago, Planning Division, Ministry of Industry and Information Technology Xiao Hua said that China will accelerate the "strong industrial base ", and plan to 2020 , the basis of the field of industrial innovation capability significantly enhanced key basic materials , core infrastructure components ( components ) the ability to significantly enhance security , advanced technology has been widely used basis , industrial technology base to support more comprehensive service system , the basic realization of key materials , the coordinated development of the core components , the whole system , the industrial base capabilities to a new level .   For the Chinese construction machinery industry, machine and accessories technology has been in a state of abnormal development . In the international arena construction machinery , we have the whole world with big construction machinery enterprises , however, and even parts of our core technologies are rarely able to find something to be proud of Aspect abroad. Has been the development of basic elements resonate with the domestic industry professionals . MIIT issued " Guidance on accelerating the strong industrial base " in mid- February , offered to key basic material , the core infrastructure components ( components ) , the foundation of advanced technology, the technical basis for the development of key industries , strengthen top-level design , improve policies measures , efforts to solve the key problem areas of industrial infrastructure , accelerate the industrialization of innovation , and actively build production and application interaction mechanism , solid industrial base development. Xiao Hua said , according to the guidelines , China will study the introduction of support for industry "four groups " industrial policy development , sound and comprehensive industrial base in the field of technical standards and measurement specifications , and guide various elements inclined to industry "four groups " in the field ; improve the fiscal support policies , the use of existing funding channels continue to increase industry " four groups" support ; broaden the financing channels, to promote coordination of credit policy and industrial policy, enhance information sharing , build communication platform between banks , in various forms bank and exchange activities. Many countries have introduced favorable policies to revitalize the core technology components as well as the development of the base elements have been shouting slogans have been advocated . We see a lot of companies are in the host country after another has opened parts production line. It is understood that many companies are trying to break the domestic parts to form more and better technical content of intellectual property , of course, in the process also encountered a lot of problems , financial , technical, policy guidance . China's construction machinery industry would be able to cut the policy implementation : China's construction machinery industry would be able to cut the policy implementation Not long ago, Planning Division, Ministry of Industry and Information Technology Xiao Hua said that China will accelerate the "strong industrial base " work plan in 2020 , the basis of the field of industrial innovation capability significantly enhanced the key base material , the core infrastructure components ( components ) the ability to significantly enhance security , advanced technology has been widely used basis , industrial technology base to support more comprehensive service system , electric hoist 12 volt the basic realization of key materials , the coordinated development of the core components , the whole system , the industrial base capabilities to a new level . For the Chinese construction machinery industry, machine and accessories technology has been in a state of abnormal development . In the international arena construction machinery , we have the whole world with big construction machinery enterprises , however, and even parts of our core technologies are rarely able to find something to be proud of Aspect abroad. Has been the development of basic elements resonate with the domestic industry professionals . MIIT issued " Guidance on accelerating the strong industrial base " in mid- February , offered to key basic material , the core infrastructure components ( components ) , the foundation of advanced technology, the technical basis for the development of key industries , strengthen top-level design , improve policies measures , efforts to solve the key problem areas of industrial infrastructure , accelerate the industrialization of innovation , and actively build production and application interaction mechanism , solid industrial base development. Xiao Hua said , according to the guidelines , China will study the introduction of support for industry "four groups " industrial policy development , sound and comprehensive industrial base in the field of technical standards and measurement specifications , and guide various elements inclined to industry "four groups " in the field ; improve the fiscal support policies , the use of existing funding channels continue to increase industry " four groups" support ; broaden the financing channels, to promote coordination of credit policy and industrial policy, enhance information sharing , build communication platform between banks , in various forms bank and exchange activities. Many countries have introduced favorable policies to revitalize the basic components and the development of core technology components have been shouting slogans have been advocated . We see a lot of companies are in the host country after another has opened parts production line. It is understood that many companies are trying to break the domestic parts to form more and better technical content of intellectual property , of course, in the process also encountered a lot of problems , financial , technical, policy guidance . We sincerely hope that the top-down policy can effectively implement , as soon as a number of sophisticated training kit manufacturer , to form more influential and more competitive core technologies . The revitalization of China's construction machinery manufacturing industry chain , not beyond slogans ! Single girder suspension crane precautions : Single girder suspension crane precautions 1, where the purchase , import, installation, transformation of special equipment must comply with the technical supervision of the quality of national safety and health regulation standards, especially for large lifting machinery risk selection and procurement to the prior consent of the security equipment sector recognition.   2 , the purchase of a crane at the factory in the factory , to be randomly distributed through local municipal quality and technical supervision departments safety technical inspection and obtain " Crane Safety Inspection Certificate " post .   3 , lifting machinery installation units to obtain qualification certificates , installation personnel have operating permits, job card before being engaged in lifting machinery installation and submit the superior safety , equipment competent authorities to review the record.   4 , crane test run before delivery , the unit must first install the self-test , and complete self-test report , the receiving unit for pre- pay after acceptance ( there should be a complete record ) , the security supervisor , equipment department detection , recognition and acceptance , square can be put into trial operation .   5, the formal acceptance must be technical, safety , equipment requirements and labor protection department supervisor in accordance with the "three simultaneous" management standards implementation .   6 , strengthen the management of the crane . Seriously implement the management system and crane safety inspection system , do regular inspections of cranes , maintenance, service, timely elimination of hazards, so that the crane is always in good working condition.   7 , the 2t wall mounted jib crane operator to strengthen education and training , strict implementation of safety procedures , technical capabilities and improve operational capacity to deal with emergency situations . Together single girder suspension crane accident analysis by falling : Together single girder suspension crane accident analysis by falling First, the accident occurred after   November 6, 1998 morning, a company specializing in a production plant in the North Division warehouse workers across the North East station using LX electric single girder overhead crane ( hereinafter referred to as " car " ) lifting parts rack , for 20 minutes or so , after pluck spreader , just turned his body , the owner of the beam suddenly fall , only 20 cm away from the production workers , resulting in the car scrapped, nearly causing a major accident personal injury .   Second, on-site technical survey results   The field investigation , the car is a professional factory of technology projects , made by a professional pillar jib cranes factory overseas . The car lifting weight 2 tons , span of 5 m , lifting height of 6 meters, in 1998 to manufacture and install , without the acceptance , in August 1998 and put into use .   The field inspection found that the owners of the pin end of the beam connecting beam and disengaged , lost the support of the main beam and fall. Pin disengagement is due to the upper end of the bolt pin keypad off , the bottom bolt loose, key board and to disengage . Visible, the accident was due to the effect of sales of uranium disengage the connection is lost , separated from the main beam and side beams caused .   Third, the cause of the accident analysis   A, the direct cause of the accident   1, the supply unit fails to provide design drawings qualified components. The car 's main beam is connected with pin and activities through the end of the beam plate , in addition to the choice of materials , fasteners , fittings and welding technology requirements are very strict. But the car keys in the configuration pin plate bolt fails uranium drawings selected GB21-76, bolt M16 × 30 , and using a M16 × 35, this bolt is beyond the effective range of connection with the main beam interference plate .   2 , spring washers pressed key board drawing pin bolts required selection GB859-76, Φ16 spring washers ; while using inferior spring washers, and has severe plastic deformation failure.   3 , the inner diameter of the fixing bolt holes ultra poor. Standard screw should Φ13.8 mm solid screw side trails Φ14.5 mm larger than the standard 0.7 mm , close to the standard screw Φ14.7 mm in diameter , resulting in lower bolt preload .   4 , the car running gear to adopt a " triple play" mechanism unilateral drive side , four wheels on each side prone to " three legs " phenomenon, prone carts are not synchronized , go diagonally , end beam twist, while uranium sales keypad plate bolts to interfere with the main beam , limiting the mobile connection axial , radial . In the long bolts alternating force plate and pin the main beam and the keypad during operation of the vehicle vibration .   Through investigation, the four reasons, the bolts loose and fall off , causing the connection pin end of the beam and the main beam is disengaged , the main beam fall.   B, the indirect cause of the accident   1 , in accordance with relevant documents, lifting machinery installed units must be trained and obtain provincial quality and technology supervision department issued a " installation of special equipment maintenance certificate ," engaged in the installation personnel have " Lifting mechanical installation and maintenance of security certificate "," lifting machinery installation, maintenance job card ", the order in lifting machinery installation. The actual installation of units of the car does not qualify in this respect, there is no " self-test report " after the plant 's four units of a professional container gantry crane installation , an important part of the crane is not according to the drawings carefully inspected, tested , so that the installation crane left major accidents.   2 , North Branch of a professional factory warehouse to install four new LX electric single girder crane cantilever hanging , technical information is incomplete, no wearing parts drawings and the " Crane Safety Inspection Certificate ." The car has not been a crane factory local municipal quality and technical supervision departments test , its part of the double girder overhead crane with electric hoist safety devices have different levels of insurance cards injuries and fatigue crack stopper cotter pin wire with Φ4 replaced most of the key board loose drive system and so on.

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