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Stepless adjustable lifting appliance for large-tonnage eccentric box girders
A stepless adjustable lifting appliance for large-tonnage eccentric box girders comprises a carrying pole beam and a plurality of hanging rod assemblies; an upper end of the carrying pole beam is provided with a transverse slope adjusting device, and two sides of the carrying pole beam are each provided with a stepless adjusting device and a longitudinal swing adjustment device; the transverse slope adjusting device comprises a movable pulley assembly and a pin shaft assembly, and the pin shaft assembly is arranged at the movable pulley assembly and the carrying pole beam in a penetration mode; each longitudinal swing adjustment device comprises a longitudinally-arranged balance beam, the upper ends of two hanging rod assemblies are respectively arranged on the balance beams, and the lower ends of two hanging rod assemblies extend downward from the outer side of the carrying pole beam; each stepless adjusting device comprises a rod shifting device for supporting the balance beam and adjusting the position of the balance beam along the transverse direction of the carrying pole beam; therefore, the stepless adjustable lifting appliance does not need any other power device and any other auxiliary equipment, has the advantages of simple structure, low cost, strong applicability and high safety, can hoist and convey different types of the large-tonnage eccentric precast box girders, is convenient to construct, and greatly improves the work efficiency.
Stepless adjustable lifting appliance for large-tonnage eccentric box girders
A stepless adjustable lifting appliance for large-tonnage eccentric box girders comprises a carrying pole beam and a plurality of hanging rod assemblies; an upper end of the carrying pole beam is provided with a transverse slope adjusting device, and two sides of the carrying pole beam are each provided with a stepless adjusting device and a longitudinal swing adjustment device; the transverse slope adjusting device comprises a movable pulley assembly and a pin shaft assembly, and the pin shaft assembly is arranged at the movable pulley assembly and the carrying pole beam in a penetration mode; each longitudinal swing adjustment device comprises a longitudinally-arranged balance beam, the upper ends of two hanging rod assemblies are respectively arranged on the balance beams, and the lower ends of two hanging rod assemblies extend downward from the outer side of the carrying pole beam; each stepless adjusting device comprises a rod shifting device for supporting the balance beam and adjusting the position of the balance beam along the transverse direction of the carrying pole beam; therefore, the stepless adjustable lifting appliance does not need any other power device and any other auxiliary equipment, has the advantages of simple structure, low cost, strong applicability and high safety, can hoist and convey different types of the large-tonnage eccentric precast box girders, is convenient to construct, and greatly improves the work efficiency.
Stepless adjustable lifting appliance for large-tonnage eccentric box girders
SHEN CHAO (author) / SHU JUN (author) / LI ZHENXI (author) / CHEN JIALE (author) / TANG LIMING (author)
2015-08-12
Patent
Electronic Resource
English
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