Construction elevator installation management methods?

Construction elevator is a kind of vertical transportation machinery which can be used for both goods and passengers to transport materials and personnel in different levels, and it is divided into rack and pinion type, wire rope type and mixed type according to the transmission form. Among them, the SC-type rack and pinion construction elevator is currently used by the domestic construction enterprises to use more people and goods dual-use elevator. The machine adopts electric rack and pinion drive for lifting and driving, in order to realize the vertical transportation of lifting cages, with a simple structure, easy to use, fast lifting and lowering, smooth transmission and other characteristics, in the construction of high-rise buildings are commonly used.

But the construction elevator is an external elevator is a construction site of large-scale equipment, there is a certain degree of danger, compared with the tower crane, (gantry, derrick) material hoists, construction elevator cage concentration of people, once an accident leads to casualties to a greater extent.

As the construction of vertical transportation machinery construction elevator, its safety management involves all aspects and many links. At present, should focus on the following aspects of work:

(1) grasp the product acquisition;

Purchase of construction elevator should choose the quality and reliability of excellent brand-name products. Product technical information should be perfect, in addition to product purchase and sales contracts, manufacturing licenses, product certification, manufacturing supervision and inspection certificate, manual content should be comprehensive. If there is a construction elevator instruction manual, although pointed out to check the brake braking torque, but delete the brake braking torque adjustment method, so that the site maintenance personnel can not adjust the braking torque regularly and correctly, in the brake left a major security risks. The instruction manual is not only an important technical document of the equipment but also an important evidence in product quality and safety accidents. Acquisition of such products, should attach great importance to the integrity of the content of the product technical information

(2) grasp the registration record;

In accordance with the Ministry of Construction, "Construction Crane Safety Supervision and Management Regulations" requirements, do a good job in the construction of lifting machinery property rights for the record and the use of registration. Property rights for the record is very important, conducive to equipment management, should be strictly in accordance with the provisions. The use of registration should be mandatory to promote the use of registration work to promote safety management. Not registered lifting equipment, shall not enter the construction site use. Responsible for the record or registration of the construction department in charge of the administrative region shall establish the construction of lifting machinery files, in accordance with the relevant provisions of the construction of lifting machinery for a unified number, and regularly to the community to announce the safety of construction lifting machinery.

(3) grasp the lease management;

Lease unit leased construction elevator should have special equipment manufacturing license, product certification, manufacturing supervision and inspection certificate. In the signed construction elevator leasing contract, clear the safety responsibilities of the two leasing parties, and the issuance of construction hoisting machinery special equipment manufacturing license, product certification, manufacturing supervision and inspection certificate, proof of filing and self-testing certificate of conformity, submit the installation and use instructions. Should be building construction machinery leasing enterprises to carry out industry confirmation, across provinces, autonomous regions, municipalities and cross-industry engaged in building construction leasing activities should be completed as soon as possible industry confirmation. In early April this year, held in Nanjing, China Construction Association machinery management and leasing branch of the 2008 National Secretary General's Working Conference requires that all parts of the construction machinery leasing enterprises should be further carried out industry confirmation of the work, strict conditions and requirements. This work on the construction elevator leasing and mobility management will certainly have a certain role in promoting, should be carried out seriously.

(4) grasp the installation and dismantling;

Construction elevator for people and cargo elevator, its installation and dismantling work must be obtained by the construction administrative department issued by the dismantling of the qualification certificate of the professional team is responsible for, and must be professionally trained, obtain the operating certificate of the professionals to operate and maintain. Construction elevator foundation, overall stability, verticality of the guide frame, attached to the wall settings, switch box, protective facilities should be in line with the provisions of the Safety Technical Regulations for the Use of Construction Machinery (JGJ33-2001).

(5) grasp testing and acceptance;

Construction elevator should be installed according to procedures for testing and acceptance. From the current procedures, one is self-test: the installation unit should be in accordance with the safety and technical standards and installation and use of the relevant requirements of the instructions for self-test, commissioning and test run. The quality and accuracy of the foundation and attached wall brackets and lift erection and installation of a comprehensive inspection, and should be carried out in accordance with the prescribed procedures for technical tests (including fall test). Second, since the acceptance: the use of units should be organized rental, installation, supervision and other relevant units for acceptance, or entrusted with the appropriate qualifications of the inspection and testing agency for acceptance. Third, the inspection: construction elevator should have the appropriate qualifications of the inspection and testing organizations to supervise the inspection. Testing organizations in the issuance of test conclusions should be attached to the state of the description and data, so that the test behavior is traceable. Inspection and testing organizations and inspection and testing personnel on the results of inspection and testing, identification of conclusions in accordance with the law to assume legal responsibility. Fourth, the use of licenses issued before being put into use. Through the development of standards, standardized testing methods; through the development of systems, standardized management testing behavior; through the testing and inspection, problematic equipment to limit and eliminate, to eliminate the equipment operating with disease.

Construction elevators can only be put into use after acceptance, without acceptance or unqualified acceptance shall not be used.

(6) grasp the safe use;

construction elevator safe use of the key to rely on the driver's safety and technical operation level; such as in a construction elevator cage fall accident, when the cage began to fall out of control, the driver knows that this time the switch did not start, but the natural reaction is to take the power method to stop the cage down, and can not think of any effective way, can only watch the cage fall to the ground. The cage fell to the ground. This situation shows that the driver does not understand that the electromagnetic brake is a normally closed type, and can only act as a brake when the power is cut off, and at this time, the lifting knob has not been turned to the up or down position of the energized, and the method of cutting off the power is not able to stop the cage from falling. If the driver is familiar with the performance of the equipment, experienced in operation, the situation is judged accurately, then it may be able to get rid of the crisis. Therefore, the construction elevator driver should go through special training and learning, and only be allowed to work after examination and certification. Before each shift operation should be in accordance with the provisions of the test check, the handover should be recorded. 1/2 12 Next End Page To ensure the normal operation of the elevator, to develop effective control of the number of people overloaded and weight overloading measures, without the addition of counterweights are not allowed to carry people. In addition, the fall arrester of the elevator, in use shall not be arbitrarily dismantled and adjusted, need to be dismantled and adjusted or every full 1 year, should be adjusted by the production plant or designated by the recognized unit for adjustment, overhaul or appraisal.

(7) grasp hidden troubleshooting;

Construction elevator malfunction or abnormalities, should immediately stop using, eliminate failures and potential accidents before being put back into use. Hidden troubleshooting to rely on all aspects of the **** tube: construction enterprises is the construction elevator hidden troubleshooting responsibility for the main body, should strengthen the daily inspections and regular inspections of the construction elevator steel structure, safety protection devices, electrical installations, transmission devices carefully checked; supervision units should effectively perform their duties of safety and found that there are hidden production safety accidents should be required to install the unit, the use of the unit to rectify the installation of the unit within a certain period of time, The use of the unit refuses to rectify the timely report to the construction unit; construction authorities to perform safety supervision and inspection duties, should be found in the inspection of the construction elevator hidden production safety accidents, ordered to immediately remove the major hidden production safety accidents or remove the hidden dangers in the process can not guarantee the safety of the order from the dangerous area to withdraw operators or temporarily stop construction. In the hidden danger investigation and management work, the investigation should be serious, rectification should be resolute, the results should be consolidated.

(8) grasp the maintenance;

Construction elevator maintenance work one should pay attention to the focus, the second to establish a system. Construction elevator maintenance work should pay attention to the following key points:

a Check and ensure that the upper and lower left and right rollers are fastened reliably, rack and pinion back wheels and drive base plate bolts without deformation, loosening;

b Check the ladder cage single, double doors and the bottom of the cage door limit switches and the relevant counterweight lifting point limit switches, emergency switches, limit break switches, etc. The function of the switch should be normal, and test the disconnecting action, respectively.

c Check the sensitivity of brake travel and separation of the brake, the operation of the noise does not exceed the provisions and no overheating phenomenon;

d Check the structure of the guide frame should be free of deformation, weld fracture and other phenomena, and joint screws are not loosened.

Construction elevator repair and maintenance work to establish a system and strictly enforced. Repair and maintenance of the normal use of equipment has a great relationship. In the past, we have engaged in red flag equipment competition activities, there is a complete set of warranty system, equipment repair and maintenance work to promote a lot. This management mode and experience on the current equipment management work can be refurbished reference.

In summary, to strengthen the construction elevator safety management, must be good from the source on the purchase of products, from the management emphasizes the record registration and standardization of leasing, from the quality of installation on the installation and dismantling and testing and acceptance of the work, from the operation of the equipment on the attention to the safe use of the preventive measures highlighting the hidden trouble detection and maintenance. Only through these measures, the construction elevator in the construction site can further improve the level of safe use.

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