An automatic power connection device for live hooks used with port gantry cranes

Abstract

This utility model discloses an automatic energizing device for a live hook used with a port gantry crane, belonging to the technical field of gantry crane energizing devices. This utility model aims to solve the problems of low efficiency and safety hazards in energizing operations. The utility model includes a connecting lug installed at the gantry crane end, a first connecting cylinder installed on the connecting lug, a cable installed at the gantry crane end, a live rotating hook for connecting to a spreader, a second connecting cylinder installed with a nut at the end of the live rotating hook away from the spreader, an outer conical female head, and an outer conical male head. The outer conical female head is installed on the outer wall of the first connecting cylinder at the end away from the connecting lug. This solution achieves automatic power supply at the gantry crane end, eliminating the need for manual operation, thus improving operational efficiency and safety. By setting up components such as the inner conical female head and inner conical male head, the accuracy and stability of the connection are improved. A buffer spring is installed at the gap between the lower connection block and the annular groove to mitigate rigid impact.

Description

Technical Field

[0001] This utility model relates to the technical field of gantry crane power connection devices, specifically an automatic power connection device for a live hook used with a port gantry crane. Background Technology

[0002] In port operations, gantry cranes are commonly used lifting equipment. When it is necessary to connect the lifting equipment to an external energized system, the traditional method of powering the gantry crane usually requires manual operation. In particular, the power connection operation at the end of the gantry crane requires manual climbing to connect the power, which is not only inefficient but also poses safety hazards. Utility Model Content

[0003] To solve the above problems, namely the problems mentioned in the background art, this utility model proposes an automatic energizing device for a live hook used with a port gantry crane, including a connecting lug installed at the end of the gantry crane, a first connecting cylinder installed on the connecting lug, a cable installed at the end of the gantry crane, a live rotating hook for connecting with a spreader, a second connecting cylinder installed with a nut at the end of the live rotating hook away from the spreader, an outer conical female head and an outer conical male head, the outer conical female head being installed on the outer wall of the end of the first connecting cylinder away from the connecting lug, an upper docking block being installed at the end of the first connecting cylinder away from the connecting lug, an aviation plug being installed on the upper docking block, and the cable extending into the interior of the first connecting cylinder and connecting to the aviation plug;

[0004] The outer conical male head is inserted into the outer wall of the second connecting cylinder at the end away from the energized rotating hook head. An outer conical male head spring is provided between the outer conical male head and the second connecting cylinder. A lower docking block is provided at the end of the second connecting cylinder near the outer conical male head. An aviation plug is installed on the lower docking block. The cable of the energized rotating hook head is connected to the aviation plug on the lower docking block.

[0005] The female outer cone has a groove inside that guides the male outer connector to be inserted, and the two aviation plugs are connected to each other.

[0006] A further feature of this invention is that an inner conical female head is provided between the first connecting cylinder and the outer conical female head, and an inner conical male head is sleeved on the outer wall of the lower connecting block, with the inner conical male head inserted into the end of the outer conical male head. The inner conical female head has a groove inside that can guide the inner conical male head to be inserted.

[0007] A further feature of this invention is that an inner conical male head top cylinder is provided inside the outer conical male head, and one end of the inner conical male head top cylinder abuts against the inner conical male head, and an inner conical male head top cylinder spring is provided at the end of the inner conical male head top cylinder away from the inner conical male head.

[0008] A further feature of this invention is that: a connecting rod is slidably engaged on the outer conical female head, a locking pin is installed at one end of the connecting rod, a through hole is provided on the inner conical female head to allow the locking pin to pass through, an annular groove is provided on the outer wall of the inner conical male head to allow the locking pin to be inserted, and an electric push rod is installed at the end of the connecting rod away from the locking pin.

[0009] A further feature of this invention is that: both the upper and lower connecting blocks are equipped with positioning pins, and both the upper and lower connecting blocks have positioning holes for guiding the insertion of the positioning pins; the inner wall of the inner conical male head has an annular groove for placing the lower connecting block; a gap is left between the lower connecting block and the annular groove; and a buffer spring is provided at the gap between the lower connecting block and the annular groove.

[0010] The beneficial technical effects of this utility model are as follows: This solution realizes automatic power supply at the gate end without manual operation, which improves work efficiency and safety. By setting up components such as the inner conical female head and the inner conical male head, the accuracy and stability of docking are improved. A buffer spring is set at the gap between the lower docking block and the annular groove, which can reduce rigid impact. At the same time, the setting of positioning pin and positioning hole also plays an auxiliary role in docking, improving the fault tolerance rate of docking and ensuring the accuracy of docking. Attached Figure Description

[0011] Figure 1 A schematic diagram of the overall structure of this solution is shown.

[0012] Figure 2 A schematic diagram of the internal structure of this solution is shown.

[0013] Figure 3 A partially enlarged view of this scheme is shown.

[0014] The attached diagram includes the following reference numerals: 1. Connecting ear; 2. First connecting cylinder; 3. Docking flange; 4. Second connecting cylinder; 5. Electrically operated rotating hook; 6. Cable; 7. Outer conical female head; 8. Outer conical male head; 9. Inner conical male head top cylinder; 10. Nut; 11. Outer conical male head spring; 12. Inner conical male head top cylinder spring; 13. Inner conical female head; 14. Aviation plug; 15. Upper docking block; 16. Inner conical male head; 17. Positioning pin; 18. Locking pin; 19. Connecting rod; 20. Electric push rod; 21. Buffer spring; 22. Lower docking block. Detailed Implementation

[0015] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0016] This utility model proposes an automatic power connection device for a live hook for a port gantry crane. It is part of an automatic power connection device for a live hook for a port gantry crane, used to connect to the gantry crane end for power supply. A connecting lug 1 is installed on the gantry crane. A first connecting cylinder 2 is hinged to the connecting lug 1. The cable 6 from the gantry crane end passes through the first connecting cylinder 2 and connects to an aviation plug 14 installed at the end of the first connecting cylinder 2. The aviation plug 14 is installed at the end of the first connecting cylinder 2 via an upper docking block 15. An outer conical female head 7 is installed on the outer wall of the first connecting cylinder 2 away from the connecting lug 1 via a docking flange 3. A conical cavity pointing towards the upper docking block 15 is opened at the lower part of its interior. A second connecting cylinder 4 is installed above a live rotating hook 5. An outer conical male head 8 is inserted into the second connecting cylinder 4 and points towards one end of the outer conical female head 7. The cable of the live rotating hook 5 is installed at the end of the outer conical male head 8 via the aviation plug 14 and the lower docking block 22. During connection, the live rotating hook 5 is lifted upwards by the steel wire rope of the gantry crane, causing the outer conical male head 8 to connect with the outer conical female head 7.

[0017] Meanwhile, an inner conical female head 13 is also installed between the outer conical female head 7 and the first connecting cylinder 2. A gap is left between the inner wall of the inner conical female head 13 and the end of the first connecting cylinder 2 where the upper mating block 15 is installed. An inner conical male head 16 is also installed at the end of the outer conical male head 8. The lower mating block 22 is installed in the inner conical male head 16. The inner conical male head 16 can be inserted into the inner conical female head 13, causing the upper connecting cylinder 12 to drive the upper mating block 15 into the inner conical male head 16, thereby guiding the upper mating block 15 to mate with the lower mating block 22. The cable 6 at the gantry crane end is electrically connected to the cable of the energized hook head 5 via the aviation plug 14. Finally, the electric push rod 20 pushes the connecting rod 19, causing the locking pin 18 to pass through the inner conical female head 13 and insert into the annular groove on the outer wall of the inner conical male head 16. The pin of the connecting rod 19 is slidably engaged with the sliding groove on the outer conical female head 7 to limit the horizontal movement of the connecting rod 19. After the energization action at the gantry crane end is completed, the energized rotating hook head 5 and the lifting device are energized, and the lifting device that requires power can be operated for transportation operations.

[0018] Both the upper docking block 15 and the lower docking block 22 are provided with positioning pins 17 and positioning holes. The end of the positioning pin 17 is provided with a tapered transition area to guide the docking of the upper and lower docking blocks. The lower docking block 22 is stuck in the annular groove on the inner wall of the inner conical male head 16 with a gap. A buffer spring 21 is installed in the gap, which can make the lower docking block 22 wobble slightly during docking to reduce rigid impact. It also finely controls the direction of the wobble according to the tapered transition area at the end of the positioning pin 17 to ensure the accuracy of docking and plays an auxiliary docking role. The outer conical male head 8 is equipped with an outer conical male head spring 11 at the end inside the second connecting cylinder 8 to reduce rigid impact. The inner conical male head top cylinder 9 is also equipped with an inner conical male head top cylinder spring 12 at the end away from the inner conical male head 16 to reduce rigid impact.

[0019] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0020] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0023] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A port portal crane matching electric hook head automatic power connection device, characterized in that: The device includes a connecting lug (1) installed at the gantry crane end, a first connecting cylinder (2) installed on the connecting lug (1), a cable (6) installed at the gantry crane end, a live rotating hook (5) for connecting with the lifting device, a second connecting cylinder (4) installed at the end of the live rotating hook (5) away from the lifting device by a nut (10), an outer conical female head (7) and an outer conical male head (8). The outer conical female head (7) is installed on the outer wall of the end of the first connecting cylinder (2) away from the connecting lug (1) by a mating flange (3). An upper mating block (15) is installed at the end of the first connecting cylinder (2) away from the connecting lug (1). An aviation plug (14) is installed on the upper mating block (15). The cable (6) extends into the first connecting cylinder (2) and connects to the aviation plug (14). The outer conical male head (8) is inserted into the outer wall of the second connecting cylinder (4) away from the energized rotating hook head (5). An outer conical male head spring (11) is provided between the outer conical male head (8) and the second connecting cylinder (4). A lower connecting block (22) is provided at the end of the second connecting cylinder (4) near the outer conical male head (8). An aviation plug (14) is installed on the lower connecting block (22). The cable of the energized rotating hook head (5) is connected to the aviation plug (14) on the lower connecting block (22). The outer conical female head (7) has a groove inside that guides the insertion of the outer male head (8), and the two aviation plugs (14) are plugged into each other.

2. The automatic power connection device with electrified hook head for port portal crane complete sets according to claim 1, characterized in that: An inner conical head (13) is also provided between the first connecting cylinder (2) and the outer conical head (7). An inner conical head (16) is sleeved on the outer wall of the lower connecting block (22), and the inner conical head (16) is inserted into the end of the outer conical head (8). A groove is provided inside the inner conical head (13) to guide the inner conical head (16) to be inserted.

3. The automatic power connection device with electrified hook head for port portal crane complete sets according to claim 2, characterized in that: The outer conical male head (8) is provided with an inner conical male head top cylinder (9), and one end of the inner conical male head top cylinder (9) is pressed against the inner conical male head (16). The inner conical male head top cylinder (9) is provided with an inner conical male head top cylinder spring (12) at the end away from the inner conical male head (16).

4. The automatic power connection device with electrified hook head for port portal crane complete sets according to claim 3, characterized in that: A connecting rod (19) is slidably engaged on the outer conical female head (7). A locking pin (18) is installed at one end of the connecting rod (19). A through hole is provided on the inner conical female head (13) to allow the locking pin (18) to pass through. An annular groove is provided on the outer wall of the inner conical male head (16) so that the locking pin (18) can be inserted. An electric push rod (20) is installed at the end of the connecting rod (19) away from the locking pin (18).

5. The automatic power connection device with a live hook head for a port portal crane complete set according to any one of claims 2-4, characterized in that: Positioning pins (17) are installed on both the upper docking block (15) and the lower docking block (22). Positioning holes for guiding the insertion of positioning pins (17) are provided on both the upper docking block (15) and the lower docking block (22). An annular groove for placing the lower docking block (22) is provided on the inner wall of the inner conical male head (16). A gap is left between the lower docking block (22) and the annular groove. A buffer spring (21) is provided at the gap between the lower docking block (22) and the annular groove.

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