A special sling for hoisting equal-length steel profiles

Abstract

The present invention discloses a special lifting tool for equal-length steel sections. It is composed of a lifting beam assembly, a hook assembly, a driving assembly, a clamping assembly and a positioning assembly; the lifting beam assembly is a frame beam platform structure including a driving and guiding mechanism and a lifting mechanism; the hook assembly can move up and down between two sets of hanging plates of the lifting mechanism, a fixed shaft is arranged between the two sets of hanging plates, and the sliding groove at the lower end of the hook assembly is limited to move along the fixed shaft; two sets of driving assemblies are symmetrically arranged at both ends of the frame beam respectively, and each set of driving assembly includes a crank, a pull rod, a sliding rod and a connecting plate; the lifting tool of the present invention can transform multiple equal-length steel sections arranged disorderly side by side into longitudinal alignment and orderly arrangement at a preset spacing in the transverse direction. The profiling positioning groove in the positioning assembly presets the transverse arrangement spacing and is embedded on the equal-length steel sections by the self-weight of the lifting tool of the present invention to achieve transverse orderly arrangement. The two sets of clamping assemblies move in parallel through the driving assembly to realize the function of aligning multiple equal-length steel sections in the longitudinal direction.

Description

Technical Field

[0001] The present invention belongs to the field of mechanical design and manufacturing technology, especially to the field of design and manufacturing technology of lifting tools, and particularly relates to a special lifting tool for equal-length steel sections. Background Art

[0002] At present, each steel section production and using unit generally uses vertical steel plate lifting tongs, horizontal steel plate lifting tongs, special hooks, magnetic lifters, vacuum suckers, etc. to lift a single large-length steel section, or uses steel wires to lift in bundles or piles.

[0003] During the production of each wall panel and vehicle frame of a vehicle, large-length steel sections often need to be lifted and moved, and usually multiple equal-length steel sections need to be lifted and positioned and laid at one time. For example, in the side wall production line of railway open wagons, intelligent robots are used to carry out the grasping and assembly work of side columns, with high requirements for material distribution. The upstream production unit needs to prepare and box the side columns. Taking a certain type of open wagon as an example, a single open wagon has 12 side columns, and each side column weighs 65 Kg. Lifting the materials into the box manually requires 2 employees, and the labor intensity is high; if using a trolley to grasp and load each side column into the box, it requires 1 operating employee and 1 trolley worker to cooperate, and the operation time is about 6 hours, with low efficiency. Therefore, a convenient, safe and efficient special lifting tool is needed for the shipment and movement of large-length steel section side columns. Summary of the Invention

[0004] The present invention discloses a special lifting tool for equal-length steel sections according to the deficiencies of the prior art. The problem to be solved by the present invention is to provide a special lifting tool for equal-length steel sections that can perform multi-root automatic combined lifting.

[0005] The present invention is realized through the following technical solutions:

[0006] The special lifting tool for equal-length steel sections is characterized in that it is composed of a lifting beam assembly, a hook assembly, a driving assembly, a clamping assembly and a positioning assembly;

[0007] The lifting beam assembly is a frame beam platform structure, including a driving and guiding mechanism arranged at both ends of the frame beam and a lifting mechanism arranged in the middle of the frame beam; the driving and guiding mechanism includes a sliding sleeve, and the lifting mechanism includes two groups of vertically parallel lifting plates;

[0008] The upper end of the hook assembly is provided with a lifting ring for connection with a lifting device, and the lower end is provided with a chute; the hook assembly can move up and down between the two groups of lifting plates of the lifting mechanism, and a fixed shaft is arranged between the two groups of lifting plates, and the chute at the lower end of the hook assembly is limited to move along the fixed shaft;

[0009] The driving assembly consists of two sets, symmetrically arranged at both ends of the frame beam respectively. Each set of driving assembly includes a crank, a pull rod, a sliding rod, and a connecting plate. Among them: The crank is arranged between two sets of hanging plates and has a folding arm structure with an angle less than 180 degrees. The vertex of the folding arm is hinged to the two sets of hanging plates, one end is hinged to one side of the hook assembly, and the other end is hinged to the middle of the pull rod. The two ends of the pull rod are respectively connected to the sliding rod, and the sliding rod is driven by the crank to move in the sliding sleeve of the driving guide part. The outer end of the sliding rod is drivingly connected to the connecting plate. A locking rod parallel to the sliding rod is arranged at the center of the connecting plate. The locking rod moves along the sliding hole arranged on the end beam of the frame beam. A locking hole is arranged at the inner end of the locking rod, and the locking hole cooperates with the end beam of the frame beam through a locking pin to realize the movement unlocking or locking of the driving assembly.

[0010] The clamping assembly includes two sets of clamping beams, which are respectively arranged in parallel at both ends of the frame beam. Each set of clamping beam is drivingly connected to the connecting plate of the sliding rod at its corresponding end through a mounting seat. Multiple groups of profiling supports for sleeving the profiled steel are arranged at intervals on the inner side surface of the clamping beam.

[0011] The positioning assembly includes two sets of reference beams, which are respectively arranged in parallel on the inner sides of the clamping beams at both ends of the frame beam. Multiple groups of profiling positioning grooves are arranged at the lower ends of each set of reference beams, and the positions of the profiling positioning grooves match the positions of the profiling supports of the corresponding clamping beams.

[0012] The frame beam of the hanging beam assembly forms a rectangular planar structure, including side beams on both sides and a cross beam arranged horizontally in the middle. The middle parts of the two sets of hanging plates are connected and fixed to the cross beam, and the two ends are connected and fixed to the driving guide mechanism.

[0013] Long circular holes for the pull rod of the driving assembly to limit and slide are arranged at both ends of the two sets of hanging plates.

[0014] Each set of driving assembly includes two sets of sliding rods arranged in parallel and matching sliding sleeves.

[0015] The vertex of the folding arm is hinged to the two sets of hanging plates through a rotating shaft. One end of the folding arm is hinged to one side of the hook assembly through a rotating shaft, and the other end is drivingly hinged to the middle of the pull rod through a sliding groove.

[0016] The hook assembly is a combined fixed structure of three layers of clamping plates. The middle is a cross-shaped hanging plate structure. A hanging ring is arranged at the upper end of the cross shape, and a sliding groove is arranged at the lower end. The groove formed between the two outer clamping plates and the cross-shaped hanging plate is hinged to the crank through a rotating shaft.

[0017] Rectangular grooves are arranged on the upper parts of the two sets of hanging plates of the hanging beam assembly. The lower parts of the two outer clamping plates of the hook match the shape of the rectangular grooves and can move up and down in the rectangular grooves.

[0018] Advantages of the present invention: The lifting tool of the present invention can transform multiple equal-length steel bars arranged side by side in a disorderly manner into an alignment in the longitudinal direction and an orderly arrangement at a preset spacing in the transverse direction. The profiling positioning grooves in the positioning component preset the transverse arrangement spacing and are embedded on the equal-length steel bars by the self-weight of the lifting tool of the present invention to achieve an orderly transverse arrangement. The two clamping components are moved in parallel through the driving component to achieve the alignment function of multiple equal-length steel bars in the longitudinal direction. Brief Description of the Drawings

[0019] Figure 1 is a three-dimensional structural schematic diagram of the overall assembly of the lifting tool of the present invention;

[0020] Figure 2 is a top-view structural schematic diagram of the lifting tool of the present invention;

[0021] Figure 3 is a front-view structural schematic diagram of the lifting tool of the present invention;

[0022] Figure 4 is a structural schematic diagram of the lifting beam assembly of the lifting tool of the present invention;

[0023] Figure 5 is a structural schematic diagram of the hook assembly of the lifting tool of the present invention;

[0024] Figure 6 is a structural schematic diagram of the driving component of the lifting tool of the present invention;

[0025] Figure 7 is a structural schematic diagram of the clamping component of the lifting tool of the present invention;

[0026] Figure 8 is a structural schematic diagram of the positioning beam of the lifting tool of the present invention.

[0027] In the figure, 1 is the lifting beam assembly, 2 is the hook assembly, 3 is the driving component, 4 is the clamping component, 5 is the positioning component, 6 is the locking pin, 7 is the rotating shaft, 8 is the fixed shaft, 9 is the locking rod, 10 is the driving guiding mechanism, 11 is the hanging plate, 12 is the cross beam, 13 is the side beam, 14 is the sliding sleeve, 15 is the hanging ring, 16 is the clamping plate, 17 is the sliding groove, 18 is the connecting plate, 19 is the sliding rod, 20 is the crank, 21 is the pull rod, 22 is the mounting seat, 23 is the profiling support, 24 is the reference beam, 25 is the profiling positioning groove, and 26 is the oblong hole. Detailed Embodiments

[0028] The present invention will be further described below in conjunction with the detailed embodiments. The detailed embodiments are further explanations of the principles of the present invention and do not limit the present invention in any way. The same or similar technologies to the present invention do not exceed the protection scope of the present invention.

[0029] In conjunction with the drawings.

[0030] As shown in the figure, the special lifting tool for equal-length steel sections of the present invention is composed of a lifting beam assembly 1, a hook assembly 2, a driving assembly 3, a clamping assembly 4, and a positioning assembly 5;

[0031] The lifting beam assembly 1 is a frame beam platform structure, including a driving and guiding mechanism 10 provided at both ends of the frame beam and a lifting mechanism provided in the middle of the frame beam; the driving and guiding mechanism 10 includes a sliding sleeve 14, and the lifting mechanism includes two sets of hanging plates 11 arranged vertically and parallel to each other;

[0032] The upper end of the hook assembly 2 is provided with a lifting ring 15 for hoisting connection with the hoisting equipment, and the lower end is provided with a chute 17; the hook assembly 2 can move up and down between the two sets of hanging plates 11 of the lifting mechanism, and a fixed shaft 8 is arranged between the two sets of hanging plates 11, and the chute 17 at the lower end of the hook assembly 2 is limited to move along the fixed shaft 8;

[0033] The driving assembly 3 includes two sets, which are symmetrically arranged at both ends of the frame beam respectively. Each set of driving assembly 3 includes a crank 20, a pull rod 21, a sliding rod 19, and a connecting plate 18; among them: the crank 20 is arranged between the two sets of hanging plates 11 and is a folding arm structure with an angle less than 180 degrees. The vertex of the folding arm is hinged to the two sets of hanging plates 11, one end is hinged to one side of the hook assembly 2, and the other end is drivingly hinged to the middle of the pull rod 21; both ends of the pull rod 21 are respectively connected to the sliding rod 19, and the sliding rod 19 is driven by the crank 20 to move in the sliding sleeve 14 of the driving and guiding mechanism 10; the outer end of the sliding rod 19 is drivingly connected to the connecting plate 18, and a locking rod 9 parallel to the sliding rod 19 is arranged at the center of the connecting plate 18. The locking rod 9 moves along the sliding hole arranged on the end beam of the frame beam, and a locking hole is arranged at the inner end of the locking rod 9. The locking hole is matched with the end beam of the frame beam through a locking pin 6 to realize the movement unlocking or locking of the driving assembly 3;

[0034] The clamping assembly 4 includes two sets of clamping beams, which are respectively arranged in parallel at both ends of the frame beam. Each set of clamping beams is drivingly connected to the connecting plate 18 of the sliding rod at the corresponding end through a mounting seat 22, and multiple groups of profiling supports 23 for sleeving the steel sections are arranged at intervals on the inner side surface of the clamping beam;

[0035] The positioning assembly 5 includes two sets of reference beams 24, which are respectively arranged in parallel on the inner sides of the clamping beams at both ends of the frame beam. Multiple groups of profiling positioning grooves 25 are arranged at the lower ends of each set of reference beams 24, and the positions of the profiling positioning grooves 25 correspond to the positions of the profiling supports 23 of the corresponding clamping beams.

[0036] The frame beam of the lifting beam assembly 1 forms a rectangular plane structure, including side beams 13 on both sides and a cross beam 12 arranged horizontally in the middle. The middle parts of the two sets of hanging plates 11 are fixedly connected to the cross beam 12, and the two ends are fixedly connected to the driving and guiding mechanism 10.

[0037] Long circular holes 26 for limiting the sliding of the pull rod 21 of the driving assembly 3 are arranged at both ends of the two sets of hanging plates 11.

[0038] Each set of driving components 3 includes two sets of slide bars 19 arranged in parallel and matching sliding sleeves 14.

[0039] The vertex of the folding arm of the crank 20 is hinged to two sets of hanging plates 11 through a rotating shaft 7. One end of the folding arm is hinged to one side of the hook assembly 2 through a rotating shaft, and the other end is driven and hinged to the middle part of the pull rod 21 through a chute.

[0040] The hook assembly 2 is a combined fixed structure of three layers of clamping plates 16. The middle is a cross-shaped hanging plate structure. A hanging ring 15 is arranged at the upper end of the cross shape, and a chute 17 is arranged at the lower end. The groove formed between the two outer clamping plates 16 and the cross-shaped hanging plate is hinged to the crank 20 through a rotating shaft.

[0041] Rectangular grooves are provided at the upper parts of the two hanging plates of the hanging beam assembly 1. The lower parts of the two outer clamping plates 16 of the hook assembly 2 are matched in shape with the rectangular grooves and can move up and down in the rectangular grooves.

[0042] The operation and hoisting process from the working state to the non-working state is as follows: The special lifting tool is hoisted to the material storage point. As the lifting equipment descends, the hook assembly 2 automatically descends under the action of gravity. The crank 20 rotates around the rotating shaft 7 as the center of rotation. The pull rod 21 slides outward in the long circular hole 26 of the hanging plate 11. The pull rod 21 drives the slide bar 19, the connecting plate 18, the clamping assembly 4 and the locking rod 9 to move outward. The profiling support 23 gradually disengages from the workpiece. When the hole on the locking rod 9 moves to the position of the locking pin 6 hole of the driving and guiding mechanism 10, the locking pin 6 automatically descends under the action of gravity and falls into the hole of the locking rod 9 to form an open-hook self-locking, completing the material placement work.

[0043] The operation and hoisting process from the non-working state to the working state is as follows: The special lifting tool is hoisted above the material to be taken. The special lifting tool is lowered. The profiling positioning groove 25 falls on the workpiece. The locking pin 6 is taken out. The hook assembly 2 is raised. The crank 20 rotates around the rotating shaft 7 as the center of rotation. The pull rod 21 slides inward in the long circular hole 26 of the hanging plate 11. The pull rod 21 drives the slide bar 19, the connecting plate 18, the clamping assembly 4 and the locking rod 9 to move inward. The profiling support 23 gradually contacts the material and realizes the material centering function. The locking pin 6 is put in to complete the material grabbing work.

Claims

1. A special lifting tool for equal-length steel sections, characterized in that: It is composed of a suspension beam assembly, a hook assembly, a driving assembly, a clamping assembly and a positioning assembly; The suspension beam assembly is a frame beam platform structure, including a driving and guiding mechanism arranged at both ends of the frame beam and a hoisting mechanism arranged in the middle of the frame beam; the driving and guiding mechanism includes a sliding sleeve, and the hoisting mechanism includes two groups of vertically parallel hanging plates; The upper end of the hook assembly is provided with a lifting ring for hoisting connection with the hoisting equipment, and the lower end is provided with a chute; the hook assembly can move up and down between the two groups of hanging plates of the hoisting mechanism. A fixed shaft is arranged between the two groups of hanging plates, and the chute at the lower end of the hook assembly is limited to move along the fixed shaft; The driving assembly includes two sets, which are symmetrically arranged at both ends of the frame beam respectively. Each set of driving assembly includes a crank, a pull rod, a sliding rod and a connecting plate; among them: the crank is arranged between the two groups of hanging plates and is a folding arm structure with an angle less than 180 degrees. The vertex of the folding arm is hinged to the two groups of hanging plates, one end is hinged to one side of the hook assembly, and the other end is hinged to the middle of the pull rod; both ends of the pull rod are respectively connected to the sliding rod, and the sliding rod is driven by the crank to move in the sliding sleeve of the driving and guiding part; the outer end of the sliding rod is drivingly connected to the connecting plate, and a locking rod parallel to the sliding rod is arranged at the center of the connecting plate. The locking rod moves along the sliding hole arranged on the end beam of the frame beam, and a locking hole is arranged at the inner end of the locking rod. The locking hole is matched with the end beam of the frame beam through a locking pin to realize the movement unlocking or locking of the driving assembly; The clamping assembly includes two sets of clamping beams, which are respectively arranged in parallel at both ends of the frame beam. Each set of clamping beams is drivingly connected to the connecting plate of the sliding rod at the corresponding end through a mounting seat. Multiple groups of profiling supports for sleeving the profiled steel are arranged at intervals on the inner side surface of the clamping beam; The positioning assembly includes two sets of reference beams, which are respectively arranged in parallel on the inner sides of the clamping beams at both ends of the frame beam. Multiple groups of profiling positioning grooves are arranged at the lower ends of each set of reference beams, and the positions of the profiling positioning grooves match the positions of the profiling supports of the corresponding clamping beams.

2. The special lifting tool for equal-length steel bars according to claim 1, characterized in that: The frame beam of the suspension beam assembly forms a rectangular plane structure, including side beams on both sides and a cross beam transversely arranged in the middle. The middle parts of the two groups of hanging plates are connected and fixed to the cross beam, and both ends are connected and fixed to the driving and guiding mechanism.

3. The special sling for hoisting equal-length steel profiles according to claim 1, characterized in that: Long round holes for limiting the sliding of the pull rod of the driving assembly are arranged at both ends of the two groups of hanging plates.

4. The special lifting tool for equal-length steel bars according to claim 1, characterized in that: Each set of driving assembly includes two groups of sliding rods arranged in parallel and matching sliding sleeves.

5. The special sling for hoisting equal-length steel profiles according to claim 1, characterized in that: The vertex of the folding arm is hinged to the two groups of hanging plates through a rotating shaft, one end of the folding arm is hinged to one side of the hook assembly through a rotating shaft, and the other end is drivingly hinged to the middle of the pull rod through a chute.

6. The special sling for hoisting equal-length steel sections according to claim 1, characterized in that: The hook assembly is a three-layer splint combined fixed structure. The middle is a cross-shaped hanging plate structure. A lifting ring is arranged at the upper end of the cross shape, and a chute is arranged at the lower end. The groove formed between the two outer splints and the cross-shaped hanging plate is hinged to the crank through a rotating shaft.

7. The special lifting tool for equal-length steel bars according to claim 6, characterized in that: Rectangular grooves are arranged at the upper parts of the two groups of hanging plates of the hoisting mechanism. The lower parts of the two outer splints of the hook assembly are matched with the rectangular grooves in shape and can move up and down in the rectangular grooves.

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