Lifting hook fixing device of ship electric slewing crane

Abstract

The utility model discloses a lifting hook fixing device of a ship electric slewing crane, which comprises an electric slewing crane and a lifting hook fixer which are arranged on a ship deck, a steel wire rope led out from a winch on a suspension arm of the electric slewing crane is connected with a movable pulley with a lifting hook through a head pulley, and the lifting hook fixer comprises a drag hook part. A fixed seat fixed on a deck and a lantern ring matched with a lifting hook sleeve hook are respectively arranged at two ends of the drag hook part; the drag hook part is of a telescopic structure with an extension state and a shortening state, and the drag hook part is shortened to tension the lifting hook when the lantern ring and the lifting hook sleeve hook are connected in a matched mode. According to the hook fixing device, the hook can be tensioned and fixed through the telescopic hook part of the hook fixing device, so that the probability and amplitude of shaking of the hook due to the influence of wind power, ship navigation and the like are greatly reduced, and the stability and safety of hook fixing are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric slewing cranes, and particularly relates to a hook fixing device for a ship electric slewing crane. Background Technique

[0002] The electric slewing crane on a ship can be used for the horizontal movement of goods or lifeboats. Based on sight and control considerations, the electric slewing crane is generally arranged near the starboard side of the ship. When the electric slewing crane is in a state without hoisting operation, for safety considerations, a rope connected to the deck is used to traction and fix the hook. When the hook is fixed by the rope, the shaking amplitude is relatively large under the influence of factors such as wind force and ship navigation, and the fixing stability is poor. Summary of the Invention

[0003] Object of the Invention: In order to overcome the deficiencies in the prior art, the utility model provides a hook fixing device for a ship electric slewing crane. The hook is tightly fixed by the retractable hook part of the hook fixator, which greatly reduces the probability and amplitude of the hook shaking under the influence of wind force, ship navigation, etc., thereby improving the stability and safety of the hook fixing.

[0004] Technical Solution: To achieve the above object, a hook fixing device for a ship electric slewing crane of the utility model includes an electric slewing crane and a hook fixator arranged on the ship deck. The steel wire rope led out from the winch on the boom of the electric slewing crane is connected with a movable pulley with a hook through a head pulley. The hook fixator includes a hook part. Fixed seats fixed on the deck and rings that are hook-fitted with the hook are respectively arranged at both ends of the hook part; the hook part is a retractable structure including two states of elongation and shortening. When the ring is hook-fitted and connected with the hook, the hook part shortens to tightly pull the hook.

[0005] Further, the hook part includes a telescopic mechanism and a pulling rope connected to each other; the telescopic mechanism is connected with the fixed seat, and the pulling rope is connected with the ring; when the telescopic mechanism performs a telescopic action, the overall length of the hook part can be adjusted.

[0006] Further, a turning shaft is provided on the fixed seat, and the telescopic mechanism is turnably installed on the fixed seat through the turning shaft.

[0007] Further, the turning shaft is a damping shaft, and the telescopic mechanism is damped and turned on the fixed seat through the damping shaft.

[0008] Further, the position where the fixed seat is installed on the ship deck is directly below the hook, and the hook part is in a substantially vertical posture when tightly pulling the hook.

[0009] Further, a supporting plate is provided on one of the flipping sides of the telescopic mechanism, and the telescopic mechanism is supported by the supporting plate when it is flipped downward to a substantially horizontal posture.

[0010] Further, there is a gap between the telescopic mechanism supported by the supporting plate in a horizontal posture and the deck of the ship.

[0011] Further, a telescopic mechanism locking device is provided on the supporting plate, and one end of the telescopic mechanism supported by the supporting plate is locked by the telescopic mechanism locking device.

[0012] Beneficial effects: The utility model can tightly fix the lifting hook through the retractable hook part of the lifting hook fixer, and can adjust the tightening force through the telescopic mechanism. Compared with the prior art of using a rope alone for traction and fixation of the lifting hook, it can greatly reduce the probability and amplitude of the lifting hook shaking affected by wind force, ship navigation, etc., thereby improving the stability and safety of the lifting hook fixation. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model. Detailed Embodiments

[0014] The following further describes the present utility model with reference to the drawings.

[0015] As Figure 1 shown, a lifting hook fixing device for a ship's electric slewing crane includes an electric slewing crane 1 and a lifting hook fixer 6 provided on the ship's deck. The steel wire rope led out from the winch 2 on the boom of the electric slewing crane 1 is connected with a movable pulley 4 equipped with a lifting hook 5 through a head pulley 3. The lifting hook fixer 6 includes a hook part 7. Fixed seats 8 fixed on the deck and collar rings 9 sleeved and cooperated with the lifting hook 5 are respectively arranged at both ends of the hook part 7. For safety considerations, in the prior art, a rope connected to the deck is generally used to traction and fix the lifting hook. When fixed with a rope, the lifting hook shakes greatly affected by factors such as wind force and ship navigation, and the fixing stability is poor. To solve the above problems, the improvement made by the present utility model is that the hook part 7 is a retractable structure including two states of elongation and shortening. When the collar ring 9 is sleeved and cooperated with the lifting hook 5, the hook part 7 shortens to tighten the lifting hook 5. More specifically, the hook part 7 includes a telescopic mechanism 10 and a pulling rope 11 connected to each other; the telescopic mechanism 10 is connected to the fixed seat 8, and the pulling rope 11 is connected to the collar ring 9. The utility model can tightly fix the lifting hook 5 through the retractable hook part 7 of the lifting hook fixer 6, and can adjust the tightening force through the telescopic mechanism 10. Compared with the prior art of using a rope alone for traction and fixation of the lifting hook, it can greatly reduce the probability and amplitude of the lifting hook shaking affected by wind force, ship navigation, etc., thereby improving the stability and safety of the lifting hook fixation.

[0016] When the telescopic mechanism 10 performs telescopic actions, it can adjust the overall length of the hook portion 7. When the length of the hook portion 7 is adjusted to be longer, it is convenient for the staff to put the collar 9 on the lifting hook 5, and then adjust the length of the hook portion 7 to be shorter to tighten it.

[0017] For the convenience of operating the telescopic mechanism 10, a turning shaft 12 is provided on the fixed seat 8, and the telescopic mechanism 10 is pivotally mounted on the fixed seat 8 through the turning shaft 12. More specifically, the turning shaft 12 is a damping shaft, and the telescopic mechanism 10 is damped and pivoted on the fixed seat 8 through this damping shaft. The setting of damping enables the telescopic mechanism 10 to hover according to the operation of the staff, which is convenient for putting on or removing the collar 9 relative to the lifting hook 5. The reason for enabling the telescopic mechanism 10 to pivot is also to lift the telescopic mechanism 10 when using the lifting hook fixer 6 and to lay down the telescopic mechanism 10 when not using the lifting hook fixer 6, reducing space occupation.

[0018] In order to improve the tightening effect and enhance stability, in the present utility model, the position where the fixed seat 8 is installed on the ship deck is directly below the lifting hook 5, and the hook portion 7 is in a substantially vertical posture when tightening the lifting hook 5.

[0019] In order to enable the laid-down telescopic mechanism 10 to have a support rather than being directly placed on the ship deck, therefore, a supporting plate 13 is provided on one of the pivoting sides of the telescopic mechanism 10, and the telescopic mechanism 10 is supported by the supporting plate 13 when it is turned downward to a substantially horizontal posture. There is a spacing between the telescopic mechanism 10 supported by the supporting plate 13 in a horizontal posture and the ship deck, and the pulling rope 11 can be wound around the telescopic mechanism 10 to keep it tidy, and the spacing is reserved for the pulling rope 11 wound around the telescopic mechanism 10.

[0020] A telescopic mechanism locking device 14 is provided on the supporting plate 13, and one end of the telescopic mechanism 10 supported by the supporting plate 13 is locked by the telescopic mechanism locking device 14 to fix the telescopic mechanism 10 when not using the lifting hook fixer 6. Among them, the telescopic mechanism 10 is preferably an electric telescopic rod, and the telescopic mechanism locking device 14 can be a clamp pivotally mounted on the supporting plate 13.

[0021] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present utility model.

Claims

1. A hook fixing device for an electric slewing crane of a ship, comprising an electric slewing crane (1) and a hook fixer (6) arranged on the ship deck. A steel wire rope led out from a winch (2) on the boom of the electric slewing crane (1) is connected with a movable pulley (4) having a hook (5) through a head pulley (3). The hook fixer (6) includes a hook part (7). Fixed seats (8) fixed on the deck and collar rings (9) which are sleeved and cooperated with the hook (5) are respectively arranged at two ends of the hook part (7); It is characterized in that: The hook pulling part (7) is a telescopic structure including two states of elongation and shortening. When the collar (9) and the lifting hook (5) are in a hooked and connected state, the hook pulling part (7) shortens to tighten the lifting hook (5).

2. The hook fixing device of a ship's electric slewing crane according to claim 1, characterized in that: The hook pulling part (7) includes a telescopic mechanism (10) and a pulling rope (11) connected to each other; the telescopic mechanism (10) is connected to the fixed seat (8), and the pulling rope (11) is connected to the collar (9); when the telescopic mechanism (10) performs a telescopic action, the overall length of the hook pulling part (7) can be adjusted.

3. The hook fixing device of an electric slewing crane for ships according to claim 2, characterized in that: The fixed seat (8) is provided with a turning shaft (12), and the telescopic mechanism (10) is turnably mounted on the fixed seat (8) through the turning shaft (12).

4. The hook fixing device of a ship's electric slewing crane according to claim 3, characterized in that: The turning shaft (12) is a damping shaft, and the telescopic mechanism (10) is damped and turned on the fixed seat (8) through this damping shaft.

5. The hook fixing device of an electric slewing crane for ships according to claim 4, characterized in that: The position where the fixed seat (8) is installed on the ship deck is directly below the lifting hook (5), and the hook pulling part (7) is in a substantially vertical posture when tightening the lifting hook (5).

6. The hook fixing device of an electric slewing crane for ships according to claim 4, characterized in that: A supporting plate (13) is arranged on one of the turning sides of the telescopic mechanism (10), and the telescopic mechanism (10) is supported by the supporting plate (13) when turning downward to a substantially horizontal posture.

7. The hook fixing device of a ship's electric slewing crane according to claim 6, characterized in that: There is a gap between the telescopic mechanism (10) supported by the supporting plate (13) in a horizontal posture and the ship deck.

8. The hook fixing device of a ship's electric slewing crane according to claim 7, characterized in that: The supporting plate (13) is provided with a telescopic mechanism locking device (14), and one end of the telescopic mechanism (10) supported by the supporting plate (13) is locked by the telescopic mechanism locking device (14).

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