BLG construction boom is to expand the scope of concrete, improve the level of pumping construction mechanization and developed new products. It is indispensable to the construction of pumping supporting construction machinery, supporting the use of boom and flexibility to achieve a large area of ??concrete cloth, can be expanded use of concrete pumps, improve their performance, while saving labor, reduce labor intensity and shorten the construction period, improve efficiency, reduce piping, construction units and the community will bring greater economic and social benefits of red. BLG12 boom with full swing, arm shelf fabric structure, fabric range up to 360 square meters, equipped with 125mm ducts, 360 ° full swing, the whole manual. Has a simple structure, strength, rigidity, reliable, simple, flexible, easy maintenance, and supporting the use of concrete pumps can be widely used in civil and industrial buildings concreting project. Second, the type of fabric Dimensions radius (M) Fabric height (M) Diameter (M) rotation range (M) Total weight (kg) weight (kg) BLG-12 12 5 ￠ 133 360 ° 1400 800 BLG- 15 15 5 ￠ 133 360 ° 1700 1000 BLG-18 18 5 ￠ 133 360 ° 2000 1200 three |, the main structure Introduction The chassis consists of four legs under the rack-shaped distribution was very composed, the vertical load of concrete placing booms the role of the cross with its cross section of the base, and then to the four legs, each leg has a horizontal retractable telescopic legs. Slewing ring slewing ring mounted between the frame and the bearing, the connecting, slewing, supporting role. The upper half of the front rack frame for concrete delivery tube support frame, the latter half of the weight bracket. Rack mount and weld it on, and with the slewing ring connection. Delivery under concrete pipe duct orifice can be any change protruding from the four sides of the tower above the supreme rack up through the tower through the rotation center, extending to the front of the rack arm in arm up the front end of a turn downward again, this front office for concrete delivery tube relative to the center of rotation of the boom. Concrete duct located inside the tower two control cards, duct under the nozzle height can be adjusted as needed. Fourth, the use of a warning BLG fabric must be installed (see 12 meters of fabric cutting machine diagram) Chassis, pulled four retractable legs and put a pin in the following order. Hoisting tower, attention should be perpendicular to the axis of the tower chassis. Lifting the rack, and slewing ring connecting bolts must be 8.8 high strength bolts, and definitely not with ordinary bolt connection. Lifting pay counterweight (300KG) lifting arm. Rack and boom with three pin connection. Note: installed in front of the concrete duct boom should go back to the side under the arm, in order to avoid tipping fabric machine forward. In order to use the application of four former security pipe (pipe rack) firmly fixed. Heavy lifting assembly were promoting the use of the rack and front concrete pipes, to the outlet end of the tube is aligned pouring concrete delivery point.