In order to maintain the sound development of the crane industry in Lankao County and improve the overall quality level, Lanao County Quality Supervision Bureau recently carried out special rectifications on crane production enterprises. For some crane production enterprises in Lankao County, there is a problem of non-standard production and use of out-of-date standards for production. The staff of the Bureau visit the provincial and municipal quality supervision bureau's standardization departments to inquire about relevant materials and consult the experts of the Provincial Institute of Quality Supervision and Standardization. Enterprises establish standards that meet quality and safety requirements. In order to regulate the production of enterprises, the staff of the Bureau has been deeply involved in the company's production sites, helping companies establish and improve their own management systems, product quality inspection systems, and signing quality and safety commitments with companies, so that enterprises can firmly establish a sense of responsibility. In this rectification, the two companies were ordered to stop production and penalties were imposed on a company that had not been produced according to the standard.
Drawworks is one of the important supporting rig parts. In the oil drilling process, it not only responsible for starting and downloading the drilling tools, controlling WOB, dealing with accidents, extracting core tube, testing oil and other operations, but also charged with the tasks of supporting derrick and the base. Drawworks could drived by DC and AC motors. All the bearings used on the drawworks are roller Bearing. The main brake is hydraulic disk brake, water-cooled or air-cooled.
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