CN106081904A - Jib-type crane container spreader stabilizer - Google Patents

Abstract

The invention discloses a jib type crane container spreader stabilizer, the counterweight slides up and down in the counterweight support frame, the counterweight is connected with the container spreader through the left traction steel wire rope and the right traction steel wire rope, and the left traction steel wire rope and the right traction steel wire rope One end of each is respectively connected to the two corners of the long side of the container spreader, and the other end is fixed on the counterweight support frame by bypassing the middle pulley of the jib frame, the counterweight support frame pulley block, and the counterweight pulley block respectively. The motor is connected to the reel through the electromagnetic clutch, and the reel is fixed on the slewing platform of the crane, and a drive wire rope with one in and one out is wound on the reel, that is, when the reel rotates, one end of the drive wire rope is wound into the reel, and the other end is wound into the reel. Winding out from the reel, the two ends of the drive wire rope are connected to the upper and lower parts of the counterweight respectively around the upper guide pulley and the lower guide pulley. It can reduce the rotation and swing of the container and stabilize the container, improve the operating efficiency of the crane, and have good safety.

Description

Jib type crane container spreader stabilizer

technical field

The invention relates to a jib type crane spreader, in particular to a jib type crane container spreader stabilizer.

Background technique

General jib cranes, such as portal cranes, tire cranes, etc., often use simple container spreaders to lift containers, and the spreaders are suspended on the hooks through four wire ropes. During operation, manually align the twist locks of the spreader with the four corner fitting holes on the top of the container. Due to single-point lifting, during the container hoisting process, the container will rotate and swing due to the slewing and luffing motion of the crane boom. If only the self-damping of the simple container spreader wire rope system is used to consume the rotation and swing energy of the container, it will take a long time and directly affect the operating efficiency of the crane; if the container is manually righted, there will be hidden dangers to the personal safety of the workers. The efficiency is also low.

Contents of the invention

The object of the present invention is to provide a jib type crane container spreader stabilizer capable of reducing the rotation and swing of the container and stabilizing the container in the process of hoisting the container.

The technical scheme that the present invention realizes above-mentioned purpose is:

Including motor, electromagnetic clutch, reel, counterweight, counterweight support frame, pulley in the middle of the arm frame, counterweight support frame pulley block, upper guide pulley, lower guide pulley, counterweight pulley block, left traction wire rope, right traction wire rope, drive wire rope . The counterweight slides up and down in the counterweight support frame, and the counterweight is connected to the container spreader through the left and right traction wire ropes, and one end of the left and right traction wire ropes is respectively connected to two corner points on the long side of the container spreader , and the other end bypasses the middle pulley of the arm frame, the counterweight support frame pulley block, and the counterweight pulley block respectively, and is fixed on the counterweight support frame. When the container spreader is lowered, the counterweight is driven to slide upward by the traction wire rope; when the container spreader is raised, the counterweight slides downward under its own gravity. The motor is connected to the reel through the electromagnetic clutch, and the reel is fixed on the slewing platform of the crane, and a drive wire rope with one in and one out is wound on the reel, that is, when the reel rotates, one end of the drive wire rope is wound into the reel, and the other end is wound into the reel. Winding out from the reel, the two ends of the drive wire rope are connected to the upper and lower parts of the counterweight respectively around the upper guide pulley and the lower guide pulley. When the motor drives the reel to rotate forward and reverse through the electromagnetic clutch, the driving wire rope on the reel drives the counterweight to move up and down.

According to the above scheme, the counterweight support frame is fixed on the slewing platform of the crane, the counterweight support frame pulley set is arranged on the upper part of the counterweight support frame, and the upper guide pulley and the lower guide pulley are respectively installed on the upper and lower parts of the counterweight support frame .

The beneficial effects of the present invention are: due to the use of counterweight, the traction wire rope connected to the container spreader has an inward pulling force on the two corners of the container spreader, which can prevent the rotation and swing of the container to a certain extent, and can Reduce the rotation and swing of the container and stabilize the container, improve the operating efficiency of the crane, and have good safety.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a schematic diagram of wire rope winding of the present invention.

In the figure: 1. Crane slewing platform, 2. Lower guide pulley, 3. Drum, 4. Driving wire rope, 5. Upper guide pulley, 6. Counterweight support frame, 7. Lifting wire rope, 8. Counterweight support frame Pulley block, 9. Counterweight pulley block, 10. Counterweight, 11. Crane jib, 12. Right traction wire rope, 13. Left traction wire rope, 14. Container spreader, 15. Container, 16. Motor, 17. Electromagnetic clutch, 18. Pulley in the middle of the boom.

detailed description

The present invention is described in detail as follows in conjunction with accompanying drawing:

Including motor 16, electromagnetic clutch 17, reel 3, counterweight 10, counterweight support frame 6, arm frame middle pulley 18, counterweight support frame pulley block 8, upper guide pulley 5, lower guide pulley 2, counterweight pulley block 9, Left traction steel rope 13, right traction steel rope 12, driving steel rope 4.

One end of the right traction wire rope 12 and the left traction wire rope 13 are respectively connected to the two corners of the long side of the container spreader 14, and the other ends respectively go around the middle pulley 18 of the jib, the counterweight support frame pulley block 8, and the counterweight pulley block 9, Be fixed on the counterweight support frame 6. The motor 16 is connected with the reel 3 through the electromagnetic clutch 17, and the reel 3 is fixed on the slewing platform 1 of the crane. The lower guide pulley 2 is connected to the top of the counterweight 10; the lower rope end of the drive wire rope 4 is connected to the bottom of the counterweight 10 around the upper guide pulley 5.

The counterweight support frame 6 is fixed on the crane slewing platform 1, and the counterweight support frame pulley block 8 is located at the counterweight support frame 6 tops.

The working process of the present invention is like this:

When the motor 16 is powered off, that is, the electromagnetic clutch 17 is separated, and the counterweight 10 slides up and down in the counterweight support frame 6 and is not controlled by the reel 3: when the assembly spreader 14 descends, the right traction wire rope 12 and The left traction wire rope 13 lifts the counterweight 10 upwards; when the assembly spreader 14 rises, the counterweight 10 slides downward under its own gravity. When the jib frame 11 of the crane is inwardly braked, due to the inward pull of the two corners of the container spreader 14 by the right traction wire rope 12 connected with the counterweight 10 and the left traction wire rope 13, the container 15 swings. decrease; in the same way, when the crane jib 11 brakes outwards, due to the inward pulling force, the container 15 can stop swinging very quickly. When the container 15 rotates clockwise (overlooking the container), the left traction wire rope 13 is elongated by the container spreader 14, the counterweight 10 is lifted upwards, the right traction wire rope 12 is slack, and the entire weight of the counterweight is supported by the left traction wire rope 13 , the tension of the left traction wire rope 13 increases, forcing the container 15 to rotate in the opposite direction; similarly, when the container 15 rotates counterclockwise, the right traction wire rope 12 forces the container 15 to rotate clockwise. Under the action, the rotation of the container 15 is effectively and rapidly reduced.

When in the process of hoisting the container, because the operator's rough operation or other factors caused the container to swing and rotate significantly, the automatic adjustment of the counterweight 10 alone will be very slow to make the container 15 stable. At this time, the motor 16 can be energized. At this time, the electromagnetic clutch 17 is also in the engaged state. The motor 16 drives the reel 3 to rotate clockwise, and the lower rope end of the driving wire rope 4 pulls the counterweight 10 to slide downward, so that the right traction wire rope 12 and the inward pulling force of the left traction wire rope 13 on the container spreader 14 is continuously increased, so that the container 15 stabilizes quickly; after the container 15 stabilizes, the motor 16 drives the reel 3 to slowly rotate counterclockwise, and the drive The upper and lower two rope ends of the wire rope 4 make the counterweight 10 slide upwards slowly until the container 15 remains on the correct posture. Then the power supply to the motor 16 can be cut off, and the stability of the container 15 can be controlled by the autonomous action of the counterweight 10 .

Claims (2)

1. A jib type crane container spreader stabilizer is characterized in that: comprise motor (16), electromagnetic clutch (17), reel (3), counterweight (10), counterweight support frame (6), Boom middle pulley (18), counterweight support frame pulley block (8), upper guide pulley (5), lower guide pulley (2), counterweight pulley block (9), left traction wire rope (13), right traction wire rope (12 ), the driving wire rope (4); the counterweight (10) slides up and down in the counterweight support frame (6), and the counterweight (10) passes through the left traction wire rope (13), the right traction wire rope (12) and the container spreader (14 ) connection, one end of the left traction wire rope (13) and the right traction wire rope (12) are respectively connected to the two corners of the long side of the container spreader (14), and the other ends respectively go around the pulley (18) and the The heavy support frame pulley block (8) and the counterweight pulley block (9) are fixed on the counterweight support frame (6); the motor (16) is connected with the reel (3) through the electromagnetic clutch (17), and the reel (3) is fixed On the slewing platform (1) of the crane, a driving wire rope (4) with one in and one out is wound on the drum (3), that is, when the drum (3) rotates, one end of the driving wire rope (4) is wound into the drum (3), the other end is wound out from the reel (3), and the two ends of the driving wire rope (4) go around the upper guide pulley (5) and the lower guide pulley (2) to connect to the counterweight (10) respectively. upper and lower. 2. The jib type crane container spreader stabilizer according to claim 1, characterized in that: the counterweight support frame (6) is fixed on the crane slewing platform (1), and the counterweight support frame pulley block (8 ) is located at the counterweight support frame (6) top.