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CN-122009957-A - Large steel truss hoisting system and use method

CN122009957ACN 122009957 ACN122009957 ACN 122009957ACN-122009957-A

Abstract

The invention relates to the technical field of lifting devices, in particular to a large steel truss lifting system and a use method thereof, and aims to solve the technical problems that in a traditional large steel truss lifting mode, truss stress is uneven, clamping reliability is insufficient, lifting equipment is lag in gravity center adjustment, clamping layout is unreasonable and instability is easy to occur in the lifting process. According to the large-scale steel truss hoisting system, the cross beam, the clamping assembly and the balance weight are arranged, the balance weight can slide on the cross beam, the multi-point uniform clamping of the large-scale steel truss can be realized by combining standard operation steps, the gravity center change of the truss in the hoisting process is dynamically adapted, the shaking deviation of the truss is effectively limited, the safety, stability and accuracy of hoisting operation are improved, local deformation and hoisting instability of the truss are avoided, the hoisting requirements of the large-scale steel truss in large-span buildings, bridges and large-scale stadium engineering are met, and the construction quality and the progress are ensured.

Inventors

  • LIU QINGGUO
  • TIAN WEICHAO
  • MI YANJIE
  • XUE ZHI
  • ZHANG XIAOLIANG

Assignees

  • 河北敬业钢构科技股份有限公司

Dates

Publication Date
20260512
Application Date
20260225

Claims (10)

  1. 1. A large steel truss hoisting system, comprising: the novel lifting device comprises a cross beam (1), wherein a hanging hook (2) is arranged on the cross beam (1), and a plurality of lower hanging rods (3) are arranged below the cross beam (1) at intervals; The clamping assemblies (4) are in one-to-one correspondence with the lower hanging rods (3), the clamping assemblies (4) are hung on the lower hanging rods (3), each clamping assembly (4) comprises a connecting rod (41) and a plurality of clamps (42) arranged on the connecting rod (41) at intervals, and the clamps (42) can clamp a truss; the balance weight (5) is arranged on the cross beam (1) in a sliding manner, and the balance weight (5) is used for balancing the gravity center of the cross beam (1) in the process of lifting the truss.
  2. 2. The large steel truss hoisting system according to claim 1, wherein the clamping assembly (4) further comprises two lifting ropes (43), one ends of the two lifting ropes (43) are detachably arranged on the lower hanging rod (3), the other ends of the two lifting ropes are arranged on the connecting rod (41), and the two lifting ropes (43) are arranged in a splayed shape.
  3. 3. A large steel truss hoisting system according to claim 1, characterized in that the cross beam (1) is i-steel and the counterweight (5) comprises: The mounting seat (51) is in sliding abutting connection with the top surface of the cross beam (1); The pulley blocks (52) are provided with two groups, the two groups of pulley blocks (52) are symmetrically arranged relative to the cross beam (1) and are arranged below the mounting seat (51), and the pulley blocks (52) are positioned in concave areas at two sides of the cross beam (1); And the brake piece is arranged on the pulley block (52).
  4. 4. The large steel truss hoisting system according to claim 1, wherein extension rods (6) are arranged at two ends of the cross beam (1), a steel wire rope (7) is arranged between the two ends, far away from the cross beam (1), of the extension rods (6), a plurality of auxiliary connecting blocks (8) are arranged on the steel wire rope (7) at intervals, and the auxiliary connecting blocks (8) are used for connecting stay ropes so as to limit the truss through the stay ropes.
  5. 5. A large steel truss hoisting system according to claim 1, characterized in that the clamp (42) comprises: The mounting block (421) is detachably arranged on the connecting rod (41); The scissors piece (422) set up in installation piece (421) bottom, scissors piece (422) have two loose ends, all are provided with butt board (423) on two loose ends, two butt board (423) relative arrangement, scissors piece (422) can control two butt board (423) clamp truss.
  6. 6. The large steel truss hoisting system according to claim 5, wherein the clamping assembly (4) is further provided with a limiting post (424) and a limiting hook (425), the limiting hook (425) is connected with the limiting post (424), the shearing fork member (422) can be in an open state, and when the limiting hook (425) and the limiting post (424) are disconnected, the shearing fork member (422) can enable the two abutting plates (423) to clamp the truss under the action of gravity during hoisting.
  7. 7. The large steel truss hoisting system according to claim 5, wherein the abutting plates (423) are angle steel, and the opening directions of the two abutting plates (423) are oppositely arranged.
  8. 8. The large steel truss hoisting system according to claim 5, wherein the connecting rod (41) is provided with a clamping groove (410), and the mounting block (421) is limited by clamping with the clamping groove (410).
  9. 9. The large steel truss hoisting system according to claim 1, wherein limiting pieces (9) for preventing the balance weight (5) from slipping are arranged at two ends of the cross beam (1).
  10. 10. A method of using a lifting system according to any one of claims 1-9, comprising the steps of: s1, controlling a clamp (42) to clamp the truss; s2, adjusting the position of the balance weight (5) so as to enable the cross beam (1) to be horizontal, and locking the balance weight (5) and the cross beam (1) through a brake assembly; S3, connecting a inhaul cable on the auxiliary connecting block (8) with the truss; S4, lifting the truss.

Description

Large steel truss hoisting system and use method Technical Field The invention relates to the technical field of lifting devices, in particular to a large steel truss lifting system and a using method thereof. Background The large-scale steel truss is a core bearing member in large-span buildings, bridges and large-scale venue projects, and the safety and stability of hoisting operation directly influence the construction quality and progress. The traditional hoisting mode adopts single hoisting point or simple hoisting tool, is difficult to match with the long size and the heavy weight characteristics of a large steel truss, easily causes uneven stress and partial deformation of the truss, has insufficient clamping reliability, and cannot meet the hoisting requirements of high precision and high safety. The existing hoisting equipment has the common problems of lag in center of gravity adjustment and unreasonable clamping layout, balance components are mostly fixed, the center of gravity of a truss cannot be dynamically adapted to change in the hoisting process, deflection and integral instability of a hoisting beam are easy to cause, meanwhile, clamping components are mostly arranged at single points or unordered, multi-point uniform clamping is difficult to realize, adaptability and stability are poor, and the hoisting efficiency and safety guarantee capability of a large-scale steel truss are severely restricted. Disclosure of Invention In order to overcome the defects, the embodiment of the invention provides a large steel truss hoisting system and a use method thereof, which solve the technical problems of uneven truss stress, insufficient clamping reliability, lag in center of gravity adjustment of hoisting equipment, unreasonable clamping layout and easy instability in the hoisting process in the traditional large steel truss hoisting mode. According to one aspect, at least one embodiment of the present invention provides a large steel truss hoisting system comprising: The cross beam is provided with hanging hooks, and a plurality of lower hanging rods are arranged below the cross beam at intervals; The clamping assemblies are in one-to-one correspondence with the lower hanging rods, are hung on the lower hanging rods and comprise connecting rods and a plurality of clamps arranged on the connecting rods at intervals, and can clamp the trusses; The balance weight is arranged on the cross beam in a sliding manner and is used for balancing the gravity center of the cross beam in the process of lifting the truss. According to an implementation manner provided by the embodiment of the application, the clamping assembly further comprises two lifting ropes, one ends of the two lifting ropes are detachably arranged on the lower hanging rod, the other ends of the two lifting ropes are arranged on the connecting rod, and the two lifting ropes are arranged in a splayed shape. According to an embodiment of the present application, the beam is i-steel, and the balance weight includes: the mounting seat is in sliding abutting connection with the top surface of the cross beam; The pulley blocks are symmetrically arranged about the cross beam and are arranged below the mounting seat, and the pulley blocks are positioned in concave areas at two sides of the cross beam; and the brake piece is arranged on the pulley block. According to the embodiment of the application, the two ends of the cross beam are provided with the extension rods, a steel wire rope is arranged between the ends, far away from the cross beam, of the two extension rods, a plurality of auxiliary connecting blocks are arranged on the steel wire rope at intervals, and the auxiliary connecting blocks are used for connecting stay ropes so as to limit the truss through the stay ropes. According to an implementation manner provided by the embodiment of the application, the fixture comprises: The mounting block is detachably arranged on the connecting rod; The shearing fork piece is arranged at the bottom of the installation block and is provided with two movable ends, abutting plates are arranged on the two movable ends, the two abutting plates are oppositely arranged, and the shearing fork piece can control the two abutting plates to clamp the truss. According to the embodiment of the application, the clamping assembly is further provided with a limit post and a limit hook, the limit hook is connected with the limit post, the shearing fork piece can be in an open state, and when the limit hook is disconnected with the limit post and lifted, the shearing fork piece can enable the two abutting plates to clamp the truss under the action of gravity. According to an implementation manner provided by the embodiment of the application, the abutting plates are angle steels, and the opening directions of the two abutting plates are oppositely arranged. According to an implementation manner provided by the embodiment of the application, the connecting rod is prov