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CN-121990451-A - Lifting appliance and lifting method for steel structure construction

CN121990451ACN 121990451 ACN121990451 ACN 121990451ACN-121990451-A

Abstract

The invention discloses a lifting appliance for steel structure construction and a lifting method, which relate to the technical field of steel structure lifting, and comprise two symmetrically arranged mounting plates fixedly connected through bolts, a rotating wheel set rotatably connected between the two mounting plates through a rotating wheel shaft, and a connecting block rotatably connected between the two mounting plates through a connecting shaft and positioned above the rotating wheel set, wherein an upper lifting lug assembly is arranged on the connecting block and comprises a main lifting lug; enhancing the lifting lug; according to the invention, the reinforced lifting lug structure is formed by additionally arranging the reinforced lifting lugs on two sides of the main lifting lug, so that on one hand, the load performance of the lifting lug can be enhanced, the deformation and cracking probability of the lifting lug structure can be reduced, and on the other hand, after a single lifting lug is damaged, the other two lifting lugs can also jointly play a role in loading, and the reliability and safety of the whole lifting lug structure are improved; in addition, the improved lifting lug structure is changed, so that the stress concentration of the main lifting lug can be weakened, and the lifting lug structure has stronger load performance.

Inventors

  • WEI WEI
  • SUN QIANG
  • ZHU QINGSONG
  • YU HUA
  • LUO WEN
  • CHEN DELUN
  • ZHU YANG

Assignees

  • 成都建工路桥建设有限公司

Dates

Publication Date
20260508
Application Date
20260331

Claims (8)

  1. 1. The utility model provides a hoist is used in steel construction, includes two symmetry settings and mounting panel (1) through bolt fixed connection, rotates runner group (2) of being connected between two mounting panel (1) through runner axle (3), rotates connecting block (4) of being connected between two mounting panel (1) and being located runner group (2) top through connecting axle (41), a serial communication port, install lifting lug subassembly (5) on connecting block (4), upward lifting lug subassembly (5) include: a main lifting lug (51); the reinforcing lifting lugs (52) are arranged, the two reinforcing lifting lugs (52) are symmetrically distributed on two sides of the main lifting lug (51) about the middle line of the main lifting lug (51), and one sides, close to each other, of the two reinforcing lifting lugs (52) are respectively abutted against two sides of the main lifting lug (51); The connecting lugs (53), connecting lugs (53) are provided with a plurality of and are fixed with main lug (51) and two reinforcing lug (52) respectively, and a plurality of connecting lugs (53) divide into a plurality of groups, and every group a plurality of connecting lugs (53) horizontal position of connecting lugs (53) corresponds and passes through the bolt fastening, multiunit connecting lugs (53) all distribute in main lug (51) or reinforcing lug (52) outside.
  2. 2. The lifting appliance for steel structure construction according to claim 1, wherein the main lifting lug (51) and the hook necks of the two reinforcing lifting lugs (52) form a cylinder together, the reinforcing lifting lugs (52) are positioned at the lower ends of the connecting blocks (4) and are provided with taper reinforcing blocks (55), the taper reinforcing blocks (55) are fixedly sleeved outside the hook heads (511) of the main lifting lugs (51), and the taper reinforcing blocks (55) are multistage frustum bodies.
  3. 3. The lifting appliance for steel structure construction according to claim 2, wherein stress diffusion grooves (551) are formed between the multi-stage frustum bodies of the taper reinforcing blocks (55), the cross-sectional area of the stress diffusion grooves (551) is more than half of the cross-sectional area of the taper reinforcing blocks (55), and the multi-stage frustum bodies of the taper reinforcing blocks (55) have different tapers.
  4. 4. The lifting appliance for steel structure construction according to claim 3, wherein the taper of the upper end frustum body of the taper enhancing block (55) close to the connecting block (4) is larger than the taper of the lower end frustum body of the taper enhancing block (55) far away from the connecting block (4), and the taper of the multistage frustum bodies of the taper enhancing block (55) is gradually decreased from top to bottom.
  5. 5. The lifting appliance for steel structure construction according to claim 1, wherein the outer sides of the intersections of the hook bodies and the hook necks of the main lifting lug (51) and the reinforcing lifting lug (52) are respectively fixed with a buckling reinforcing block (54), the outer curved surfaces of the buckling reinforcing blocks (54) are opposite to the outer curved surfaces of the intersections of the main lifting lug (51) or the reinforcing lifting lug (52), and a plurality of buckling reinforcing blocks (54) are in interference fit with each other.
  6. 6. The lifting appliance for steel structure construction according to claim 5, wherein the main lifting lug (51) and the reinforcing lifting lug (52) are formed into a non-circular symmetrical body in a combined structure cross section, and a symmetrical middle line of the main lifting lug (51) and the reinforcing lifting lug (52) is perpendicular to the axis of the connecting shaft (41).
  7. 7. The lifting appliance for steel structure construction according to claim 1, wherein the inner side of the hook neck of the main lifting lug (51) is further integrally formed with a mounting lug (56), and the mounting lug (56) is used for mounting an anti-falling fastener.
  8. 8. A steel structure construction hoisting method is characterized in that the lifting appliance for steel structure construction is used for bridge steel structure construction hoisting operation according to the claims 1-7.

Description

Lifting appliance and lifting method for steel structure construction Technical Field The invention relates to the technical field of steel structure hoisting, in particular to a lifting appliance and a lifting method for steel structure construction. Background The special lifting appliance is usually required to be used in the steel structure lifting operation process, such as a commonly called crane block lifting tackle, is a simple lifting machine which can be applied to a steel structure bridge construction site and is used for vertically lifting a heavy object through a chain wheel or a winding drum, and the lifting tackle can be divided into four types of lifting hook tackles, chain ring tackles, hanging ring tackles and hanging bracket tackles according to the connection mode of the tackle and the lifting object. Through searching, the patent document with the bulletin number of CN221093418U discloses a building hoist trolley, which comprises a pulley seat, a hoisting lifting hook and a connecting column arranged at the position between the pulley seat and the hoisting lifting hook, wherein a supporting frame is arranged on the outer side of the connecting column, the supporting frame comprises a stabilizing ring, a supporting mechanism and a moving mechanism, the supporting mechanism comprises a reinforcing plate, a connecting steel rope and a supporting block, the stabilizing ring is arranged on the outer surface of the connecting column, the reinforcing plate is arranged on the outer surface of the stabilizing ring, a fixing short column is arranged in the reinforcing plate, the hoisting lifting hook is embedded into the supporting block, the supporting and limiting of the hoisting lifting hook are realized, one end of the supporting block is firmly fixed by the connecting steel rope, the positioning column penetrates through a limiting block, the other end of the supporting block is fixed, the two ends of the supporting block are supported, the supporting block is stressed and is balanced, so that the design of the hoisting lifting hook is supported, and the condition that the lifting hook is deformed or cracked due to the large load of the lifting hook is avoided. Based on the above search, in combination with the discovery of the prior art, the existing hoisting tackle structure shares the load of the upper lifting lug by adding a supporting frame structure outside the upper lifting lug (namely the lifting hook), so that the safety of the upper lifting lug is enhanced, but the self structure of the upper lifting lug is not changed, and the problem of stress concentration exists, so that the deformation and cracking phenomena still occur when the upper lifting lug is loaded, the self structural strength of the upper lifting lug is insufficient, and certain potential safety hazards exist, and therefore, a lifting appliance and a lifting method for steel structure construction are needed. Disclosure of Invention The application aims to provide a lifting appliance and a lifting method for steel structure construction, which are used for solving the problems in the background technology. In order to achieve the above purpose, the application provides the technical scheme that the lifting appliance for steel structure construction comprises two symmetrically arranged mounting plates fixedly connected through bolts, a rotating wheel set rotatably connected between the two mounting plates through a rotating wheel shaft, and a connecting block rotatably connected between the two mounting plates through a connecting shaft and positioned above the rotating wheel set, wherein an upper lifting lug assembly is arranged on the connecting block, and comprises: A main lifting lug; The two reinforcing lifting lugs are symmetrically distributed on two sides of the main lifting lug about the middle line of the main lifting lug, and one side, close to each other, of each of the two reinforcing lifting lugs is abutted against two sides of the main lifting lug respectively; the connecting lugs are provided with a plurality of and fixed with main lug and two reinforcing lugs respectively, and a plurality of connecting lugs divide into a plurality of groups, and a plurality of connecting lug horizontal positions of every group connecting lug correspond and are fixed through the bolt, and multiunit connecting lug all distributes in main lug or reinforcing lug outside. As a further supplement of this scheme, the hook neck department of main lug and two reinforcing lug forms the cylinder jointly, and the reinforcing lug is located the lower extreme of connecting block and is formed with tapering reinforcing block, and the tapering reinforcing block fixed cover is located the hook head portion outside of main lug, and tapering reinforcing block is multistage frustum. As a further supplement of the scheme, a stress diffusion groove is formed between the multi-stage frustum bodies of the taper reinforcing block, the cross-s