CN111320070A - An automatic grappling hook spreader for I-beams - Google Patents

Abstract

An automatic grapple hoist for I-steel comprises a grapple body, a lifting device and a lifting device, wherein the grapple body comprises a connecting part, a grapple hinged below the connecting part and locking parts arranged at two sides of the connecting part in a mirror image manner; the locking piece is including setting up the gyro wheel on connecting portion, the setting element of setting in the connecting portion side, the round pin axle of setting on the setting element, set up at epaxial locking hook of round pin and set up the rocking arm between gyro wheel and round pin axle, sell epaxial torsional spring that is provided with, torsional spring one end butt setting element, torsional spring other end butt locking hook, the grapple both sides are provided with the locking axle respectively, the mobile setting of locking hook is epaxial at the locking, the grapple inside and outside edge is the arc. Compared with the prior art, the invention has the advantages that the locking structure is simple, the locking state is firm, the safety risk of hoisting the I-steel is reduced or avoided, and the invention has the functions of stable movement, high working efficiency, automatic hooking and automatic locking; when the construction operation, need not artifical couple fixed, reduced artifical intervention, improved the efficiency of construction.

Description

An automatic grappling hook spreader for I-beams

technical field

The invention relates to the field of mechanical equipment, in particular to an automatic grapple hook spreader for I-beams.

Background technique

I-beam is a relatively common material in the production of steel components in steel structure processing plants; in the processing plant assembly line, the I-beam or steel components need to be hoisted to the welding station for frame or panel welding. At present, these hoisting work mainly relies on the crane, ferry car or elevator in the workshop to hoist and transport with the help of magnetic suction cups, gravity hooks, gravity clamps, steel wire ropes, rigging, synthetic fiber slings and other components; during the hoisting process, manual Assisting in the hooking operation not only requires a large amount of manual intervention and is inefficient, but also may cause the hooking to be weak due to careless manual operation, which poses certain safety risks. Therefore, how to make an automatic grappling hook spreader for I-beams that can solve the problems of the prior art has become a technical problem to be solved.

SUMMARY OF THE INVENTION

Based on the above technical problems, the present invention proposes an automatic grappling hook spreader for I-beams to solve the above problems in the background technology.

In view of this, the present invention proposes an automatic grappling hook spreader for I-beams, which comprises: a grappling hook body, the grappling hook body includes a connecting part, and a grappling hook hingedly arranged under the connecting part and mirrored locking pieces arranged on both sides of the connecting portion; the locking piece includes a roller arranged on the connecting portion, a positioning piece arranged on the side of the connecting portion, and a positioning piece arranged on the A pin on the part, a locking hook arranged on the pin, and a rocker arm arranged between the roller and the pin, the pin is provided with a torsion spring, and the One end of the torsion spring abuts the positioning member, the other end of the torsion spring abuts the locking hook, the two sides of the grabbing hook are respectively provided with locking shafts, and the locking hook is movably arranged on the On the locking shaft, the inner and outer edges of the grab hook are arc-shaped.

In this technical solution, the locking structure is simple, the locking state is firm, the safety risk of I-beam hoisting is reduced or avoided, and it has the functions of smooth movement, high work efficiency, automatic hooking, and automatic locking.

In the above technical solution, it is preferable to further include a beam, a connecting seat and a lifter screw, the lifter screw and the grab hook body are two, and the two lifter screws pass through the The connecting seats are arranged at the upper ends of the beam, and the two grapple hook bodies are respectively arranged at the lower ends of the beam.

In this technical solution, preferably, a beam is arranged between the two groups of grapple hook bodies, which increases the hoisting stability of the I-beam member. The lift screw is set on the beam to reduce or avoid the swing amplitude of the I-beam hoisting.

In the above technical solution, preferably, a lifter is provided on the top of the lifter screw, and also includes a gantry frame, the lifter is arranged on the gantry frame, and the beams are divided into two groups and pass through the gantry frame. The elevator screws are arranged parallel to each other at the bottom of the gantry.

In this technical solution, preferably, it can be used for lifting and transporting large-scale I-beam components, so as to ensure that the large-scale I-beam components are not deformed during the transportation process.

In the above technical solution, preferably, the two mirrored rollers are arranged at a horizontal interval on the connecting portion, and an unlocking transmission mechanism is provided on one side of the grabbing hook body, and the unlocking transmission mechanism includes Abutting plates, connecting rods and tongues are arranged in sequence from top to bottom, the beams are provided with guide holes, the connecting rods are arranged through the guide holes, and the upper parts of the connecting rods are provided with A spring, the lower part of the tongue can be movably inserted between the two rollers, and the upper part of the abutting plate is provided with a stopper in the moving direction.

In this technical solution, preferably, an unlocking transmission mechanism is provided to automatically unlock the locking piece of the grappling hook body, so as to avoid the possibility of collision and crush injury caused by the operator manually picking the hook, and further reduce the amount of manual intervention. Increased construction efficiency;

In the above technical solution, preferably, an anti-rotation plate is provided inside the unlocking transmission mechanism, and the height of the anti-rotation plate is higher than the height of the unlocking transmission mechanism.

In this technical solution, preferably, an anti-rotation plate is provided to facilitate the docking of the unlocking transmission mechanism with the position of the stopper.

In the above technical solution, preferably, the upper and lower parts of the grapple body in the moving direction are provided with travel switches, the elevator is provided with a controller, and the travel switches are connected to the controller.

In this technical solution, preferably, it is used for the automatic operation of the automatic up and down movement of the automatic grapple spreader for I-beams.

The present invention proposes an automatic grappling hook spreader for I-beams. Compared with the prior art, the present invention has the following advantages: 1. The transmission parts are rigidly connected with pins and the like, which ensures that the grappling hook automatically hooks, The decoupling action is sensitively transmitted; 2. The design of the inner and outer arcs of the grapple hook realizes the upward and downward hooking, decoupling and reset automation; 3. Avoid the risk of collision and crushing when the operator manually hooks and removes the hook; 4. For the hoisting of large flat I-beam members, ropes such as cranes and hoisting frames are not required; 5. The overall maintenance cost of the hook spreader is reduced, and safe and reliable operation is realized; 6. The travel switch is set to ensure that automatic running.

Description of drawings

Fig. 1 shows the front view of the structure of the present invention;

Figure 2 shows a side view of the structure of the present invention;

Fig. 3 shows the use state schematic diagram of the present invention;

Fig. 4 shows the schematic diagram of the automatic hook of the present invention;

Fig. 5 shows the schematic diagram of automatic decoupling of the present invention;

Fig. 6 shows the schematic diagram of automatic return of the present invention;

In the figure: 1 Grab hook body; 2 Locking hook; 3 Pin shaft; 4 Rocker arm; 5 Roller; 6 Tongue piece; 7 Lift connecting pin; 8 Kingpin; 9 Torsion spring; Transmission mechanism; 13 elevator screw; 14 block iron; locking piece 15, connecting seat 16, abutting plate 17, 18 connecting rod, 19 spring, 20 positioning piece, 21 connecting part, 22 locking shaft, 23 left hook, 24 right Hook, 25 upper wings, 26 grapple jaws.

Detailed ways

In order to understand the above objects, features and advantages of the present invention more clearly, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the content disclosed below. limits.

The technical solution of the present invention will be further described below with reference to FIG. 1 to FIG. 6 .

The first embodiment, as shown in Fig. 1 to Fig. 6: an automatic grappling hook spreader for I-beams, which includes: a grappling hook body 1, the grappling hook body 1 includes a connecting part 21, a hinged setting The grab hooks under the connecting portion 21 and the locking members 15 mirrored on both sides of the connecting portion 21; the connecting portion 21 includes two sets of steel plates arranged at intervals; the grab hooks include a left hook 23 and the right hook 24, the left hook 23 and the right hook 24 are provided with a hinge portion, the hinge portion is provided between two sets of steel plates, and the hinge portion is correspondingly provided on the steel plate There is a hinge hole, and the hook body 1 and the connection part 21 are hinged through the king pin 8 arranged in the hinge hole;

The locking member 15 includes a roller 5 arranged on the connecting portion 21, a positioning member 20 arranged on the side of the connecting portion 21, a pin shaft 3 arranged on the positioning member 20, The locking hook 2 on the pin shaft 3 and the rocker arm 4 arranged between the roller 5 and the pin shaft 3, the pin shaft 3 is provided with a torsion spring 9, the torsion One end of the spring 9 is in contact with the positioning member 20, the other end of the torsion spring 9 is in contact with the locking hook 2, the two sides of the grabbing hook are respectively provided with locking shafts 22, and the locking hook 15 can be It is movably arranged on the locking shaft 22, and the inner and outer edges of the grab hook are arc-shaped.

It also includes a beam 10, a connecting seat 16 and a lift screw 13. The connecting seat 16 is provided with a through hole corresponding to the bottom of the lift screw 13, and the connecting seat 16 passes through the lift screw 13. The lifter connecting pin 7 arranged in the through hole is fixed, the top of the lifter screw 13 is used for setting the lifter, the lifter screw 13 and the grapple body 1 are two, and the two are two. The two elevator screws 13 are respectively disposed on the upper two ends of the beam 10 through the connecting seat 16 , and the two grapple hook bodies 1 are respectively disposed on the two connecting parts 21 . The lower ends of the horizontal 10 beam.

The top of the elevator screw 13 is provided with a lift, and also includes a gantry, the lift is arranged on the gantry, and the cross beams 10 are two groups, and the lift screw 13 is located at the place. The bottoms of the gantry frames are arranged parallel to each other.

The two mirrored rollers 5 are arranged at a horizontal interval on the connecting portion 21, and an unlocking transmission mechanism 12 is provided on one side of the grapple body 1, and the unlocking transmission mechanism 12 includes a top-to-bottom structure. The abutting plate 17, the connecting rod 18 and the tongue piece 6 are arranged in sequence, the beam 10 is provided with a guide hole, and the middle and lower part of the connecting rod 18 is movably arranged in the guide hole, and the A spring 19 is provided on the connecting rod 18 between the upper part of the guide hole and the lower part of the abutting plate 17 , and the lower part of the tongue 6 can be movably inserted between the two rollers 5 . A stopper 14 is provided in the moving direction of the upper part of the contact plate 17 .

An anti-rotation plate 11 is provided on the inner side of the unlocking transmission mechanism 12 , and the height of the anti-rotation plate 11 is higher than the height of the unlocking transmission mechanism 12 . The upper and lower parts of the grapple body 1 in the moving direction are provided with travel switches, and the elevator is provided with a controller, and the controller is wirelessly connected to the travel switch through a wireless device.

Hooking process: Align the grapple body 1 with the lifting point of the I-shaped or I-beam frame, multiple lifts (coaxial drives) descend at the same time, and the automatic grapple body 1 slowly descends with the beam 10. When the grapple body 1 After contacting the I-beam upper wing plate 25, the outer edge of the bottom of the grapple is slowly propped up by the I-beam upper wing plate 25. As the grapple body 1 falls, the gripper jaws 26 are gradually opened. When the hook jaw 26 is opened to the same width as the I-beam wing plate, the wing plate enters into the grab hook jaw 26, and when the grab hook falls again, the grab hook jaw 26 is closed by its own weight, and is closed by the force of the torsion spring 9. The upper wing plate 25 is clamped and locked, and the descending stops at this time. At this time, the travel switch is activated, and then the elevator starts to rise, hoisting the I-beam frame.

Decoupling process: After the grapple body 1 lifts the I-beam frame to the welding station, the I-beam frame and the welding station panel can be accurately positioned by means of the guide device set on the welding station. At this time, the elevator slowly falls so that the I-beam frame is placed on the panel, and the grappling hook body 1 continues to fall. At this time, the arc set on the inside of the grapple hook is supported by the I-beam upper wing plate 25 as it descends. , when the gripping hook jaw 26 reaches the maximum value, the locking hook 2 hooks the locking shaft 22 by the force of the torsion spring 9, and the gripping hook jaw 26 is constrained and fixed. At this time, the travel switch is activated, and the elevator stops descending. Then the elevator starts to rise, leaves the workpiece, and completes the automatic decoupling of the grapple body 1 .

Resetting process: After the grapple body 1 is separated from the workpiece, it continues to rise. When the abutment plate 17 of the unlocking transmission mechanism 12 is touched by the blocking iron 14, the connecting rod 18 (through the guide hole in the beam 10) moves downward, and the spring 19 is blocked. Compression, the tongue 6 (sharp-shaped) at the lower end of the connecting rod 18 gradually spreads the two rollers 5, and then drives the locking hook 2 to open outward through the lever action of the rocker arm 4 and the pin 3, so that the locking hook 2 is released from the lock. Axis 22, complete the reset process. Controlled by the uppermost travel switch, the lift stops rising. When the lift descends again, the abutment plate 17 leaves the stopper 14, the tongue 6 is reset by the spring 19 on the connecting rod 18, and the grapple loses its restraint and automatically falls down by its gravity. When closed, the locking hook 2 returns to its original position under the action of the torsion spring 9 to complete a working cycle.

During use: through the joint action of various structures, the formed I-beam frame can be automatically grabbed, then moved to the next station, automatically unhooked after dropping the workpiece, and then returned to the original position to make the hook body 1 Reset again to prepare for the next translation of the workpiece.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (6)

1. An automatic grappling hook spreader for I-beams, characterized in that: comprising a grappling hook body, the grappling hook body comprising a connecting portion, a grappling hook hingedly arranged under the connecting portion, and a mirror image arranged on the connecting portion. The locking pieces on both sides of the connecting part; the locking piece includes a roller set on the connecting part, a positioning piece set on the side surface of the connecting part, and a pin set on the positioning piece A shaft, a locking hook arranged on the pin shaft, and a rocker arm arranged between the roller and the pin shaft, the pin shaft is provided with a torsion spring, and one end of the torsion spring Connected to the positioning piece, the other end of the torsion spring abuts the locking hook, the two sides of the grabbing hook are respectively provided with locking shafts, and the locking hook is movably arranged on the locking shaft , the inner and outer edges of the grapple hook are arc-shaped. 2. The automatic grappling hook spreader for I-beams according to claim 1, characterized in that: further comprising a beam, a connecting seat and a lifter screw, the lifter screw and the grapple body are both There are two, two elevator screws are respectively arranged on the upper two ends of the beam through the connecting seat, and the two grab hook bodies are respectively arranged on the lower ends of the beam. 3. The automatic grappling hook spreader for I-beams according to claim 1 or 2, characterized in that: a lifter is provided on the top of the lifter screw, and also includes a gantry, and the lifter is arranged at the On the gantry, there are two sets of the beams, which are arranged parallel to each other at the bottom of the gantry through the elevator screw. 4 . The automatic grappling hook spreader for I-beams according to claim 3 , wherein the two mirrored rollers are arranged at horizontal intervals on the connecting portion, and the grappling hooks An unlocking transmission mechanism is provided on one side of the main body. The unlocking transmission mechanism includes an abutment plate, a connecting rod and a tongue piece arranged in sequence from top to bottom. The beam is provided with a guide hole, and the connecting rod is arranged through In the guide hole, the upper part of the connecting rod is provided with a spring, the lower part of the tongue piece is movably inserted between the two rollers, and the upper part of the abutting plate is provided with a stopper in the moving direction iron. 5 . The automatic grab hook spreader for I-beams according to claim 4 , wherein an anti-rotation plate is arranged inside the unlocking transmission mechanism, and the height of the anti-rotation plate is higher than that of the The height of the unlocking transmission mechanism. 6. The automatic grappling hook spreader for I-beams according to claim 3 or 5, characterized in that: the upper part and the lower part of the moving direction of the said grapple hook body are provided with travel switches; A controller is provided, and the travel switch is connected to the controller.

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