Recently, the Shandong Provincial Special Inspection Institute completed the QTZ250 (7030) tower crane type test designed by Shandong Fuyou Co., Ltd. and Shandong Wansida Group.
The rated lifting torque of the QTZ250 tower crane is 2500 kN·m, the independent height is 48m, the attachment height is up to 220m, the maximum amplitude is 70m, and the maximum lifting capacity is 16t. The whole adopts the chip structure and the pin shaft connection. The hoisting mechanism adopts double-wound motor and differential transmission; the slewing mechanism and the luffing mechanism adopt torque motor. It is the largest and most advanced ordinary tower crane produced in Shandong Province, and is widely used in bridges, buildings and municipalities. And other engineering fields.
After the Shandong Special Inspection Institute accepted the application for the QTZ250 type test, the leaders of the hospital paid great attention to it, and the technical personnel were carefully prepared to formulate a detailed type test plan. With the cooperation of the relevant personnel of the enterprise, the inspectors carried out the main force-bearing components of the tower crane. Stress testing and analysis and calculation, the tower safety equipment, the performance of the mechanism and the connection quality of the metal structure were carefully tested. After three days of intense work, the type test work was successfully completed. The inspectors conducted exchanges and discussions with the tower crane design unit and the production unit on the problems found during the inspection process, and formulated detailed and reasonable rectification measures.
After the type test of the QTZ250 tower crane, it marked the new level of inspection of the national tower crane of the provincial special inspection institute.
The rated lifting torque of the QTZ250 tower crane is 2500 kN·m, the independent height is 48m, the attachment height is up to 220m, the maximum amplitude is 70m, and the maximum lifting capacity is 16t. The whole adopts the chip structure and the pin shaft connection. The hoisting mechanism adopts double-wound motor and differential transmission; the slewing mechanism and the luffing mechanism adopt torque motor. It is the largest and most advanced ordinary tower crane produced in Shandong Province, and is widely used in bridges, buildings and municipalities. And other engineering fields.
After the Shandong Special Inspection Institute accepted the application for the QTZ250 type test, the leaders of the hospital paid great attention to it, and the technical personnel were carefully prepared to formulate a detailed type test plan. With the cooperation of the relevant personnel of the enterprise, the inspectors carried out the main force-bearing components of the tower crane. Stress testing and analysis and calculation, the tower safety equipment, the performance of the mechanism and the connection quality of the metal structure were carefully tested. After three days of intense work, the type test work was successfully completed. The inspectors conducted exchanges and discussions with the tower crane design unit and the production unit on the problems found during the inspection process, and formulated detailed and reasonable rectification measures.
After the type test of the QTZ250 tower crane, it marked the new level of inspection of the national tower crane of the provincial special inspection institute.
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