Automatic folding windproof crane for maintenance of port shipbuilding portal crane

Abstract

The utility model discloses a kind of automatic folding wind-preventing cranes for port shipbuilding portal crane maintenance, including base, support arm and jib, the base with the support arm bottom end fixed connection, the support arm top and the jib articulate;Electric push rod is provided on the support arm, the electric push rod includes cylinder and piston end, the cylinder and support arm articulate, the piston end and jib articulate, the jib one end is provided with wind speed sensor of real-time detection environment wind speed, clamping block is provided on the support arm, clamping groove matched with the clamping block is opened on the jib;The wind speed sensor is electrically connected with control system, control system is according to the preset wind speed threshold value control the piston end telescoping of the electric push rod, drives the jib rotation along with the articulation point of the support arm, after the jib folding is in position, the clamping block is embedded in the clamping groove and completes locking, the utility model has the characteristics of good safety and good stability.

Description

Technical Field

[0001] This utility model relates to the technical field of port machinery maintenance equipment, specifically an automatic folding windproof crane for port shipbuilding gantry crane maintenance. Background Technology

[0002] In port shipbuilding operations, shipbuilding gantry cranes are core loading and unloading equipment, undertaking key tasks such as hoisting and installing large components. As gantry cranes are in a high-load and high-frequency working state for a long time, their key components such as metal structure, transmission system, and electrical equipment are prone to wear, fatigue or failure. Therefore, regular maintenance and repair are required. However, the height of gantry cranes is usually tens of meters, and maintenance work often requires the assistance of maintenance cranes installed on the top of the gantry crane.

[0003] However, traditional maintenance cranes mostly use a fixed structure. Under strong winds, the crane boom, wire rope and other components will bear huge wind loads, which can lead to structural deformation, weld cracking or even complete overturning. This not only shortens the service life of the equipment, but may also cause safety accidents such as falling from heights and parts falling off.

[0004] Therefore, it is necessary to design an automatic folding windproof crane for maintenance of port shipbuilding gantry cranes with good safety and stability. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic folding windproof crane for the maintenance of port shipbuilding gantry cranes, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an automatic folding windproof crane for maintenance of port shipbuilding gantry cranes, including a base, a support arm and a boom, wherein the base is fixedly connected to the bottom end of the support arm and the top end of the support arm is hinged to the boom; An electric push rod is provided on the support arm. The electric push rod includes a cylinder and a piston end. The cylinder is hinged to the support arm, and the piston end is hinged to the boom. A wind speed sensor for real-time detection of ambient wind speed is provided at one end of the boom. A locking block is provided on the support arm, and a locking groove matching the locking block is provided on the boom. The wind speed sensor is electrically connected to the control system. The control system controls the piston end of the electric push rod to extend and retract according to the preset wind speed threshold, which drives the boom to rotate along the hinge point with the support arm. After the boom is folded into place, the locking block is embedded in the slot to complete the locking.

[0007] According to the above technical solution, a mounting bracket is connected to one side of the boom, the wind speed sensor is fixed on the mounting bracket, and a hook assembly is provided on the side of the boom away from the wind speed sensor.

[0008] According to the above technical solution, the base and the support arm are connected by a flange, and the flange is connected with a number of bolts at equal intervals around its circumference, and one end of each bolt is threaded with a nut.

[0009] According to the above technical solution, the flange is provided with a number of reinforcing ribs at equal intervals around its circumference. The reinforcing ribs are spaced apart from the bolts and are connected to the support arm.

[0010] According to the above technical solution, the base is provided with fixed seats on both sides for connecting with the shipbuilding gantry crane.

[0011] According to the above technical solution, a maintenance frame is connected to the end of the boom near the wind speed sensor.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are: (1) By setting up an automatic sensing folding system consisting of a wind speed sensor and an electric push rod, when the ambient wind speed reaches the preset threshold, the wind speed sensor transmits the detection signal to the control system. The control system then controls the electric push rod to drive the piston end to extend and retract, causing the boom to rotate along the hinge point with the support arm. At the same time, the piston end rotates along the boom hinge point, and the cylinder rotates along the support arm hinge point, completing the folding of the crane. After folding, the locking block is embedded in the slot to lock it. This device can automatically fold and store the boom in strong winds, effectively reducing wind resistance and reducing the risk of the crane shaking or overturning due to strong winds. It greatly improves the stability and safety of the crane under severe weather conditions and ensures the smooth operation of the maintenance of the gantry crane in the port. (2) By setting up a structure with inspection frame, reinforcing ribs, and fixed seats, the inspection frame facilitates maintenance personnel to inspect and maintain the maintenance crane, improving the convenience of equipment maintenance. The reinforcing ribs between the base and the support arm enhance the stability of the connection between the two. The fixed seats on both sides of the base facilitate the stable connection between the maintenance crane and the shipbuilding gantry crane, and also facilitate the installation and disassembly of the maintenance crane, improving the versatility and flexibility of the equipment. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structural composition of this utility model; Figure 2 yes Figure 1 Enlarged view of point A in the middle; In the diagram: 10. Base; 11. Flange; 111. Bolt; 12. Nut; 13. Reinforcing rib; 14. Fixing seat; 20. Support arm; 21. Electric push rod; 211. Cylinder body; 212. Piston end; 22. Locking block; 23. Locking groove; 30. Hoisting arm; 31. Wind speed sensor; 32. Mounting bracket; 33. Hook assembly; 34. Maintenance bracket. Detailed Implementation

[0014] To enable those skilled in the art to better understand the present invention, the solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0015] This utility model provides a technical solution: an automatic folding windproof crane for maintenance of port shipbuilding gantry cranes, including a base 10, a support arm 20 and a boom 30. The base 10 is fixedly connected to the bottom end of the support arm 20, and the top end of the support arm 20 is hinged to the boom 30. An electric push rod 21 is provided on the support arm 20. The electric push rod 21 includes a cylinder body 211 and a piston end 212. The cylinder body 211 is hinged to the support arm 20, and the piston end 212 is hinged to the boom 30. A wind speed sensor 31 for real-time detection of ambient wind speed is provided at one end of the boom 30. A locking block 22 is provided on the support arm 20, and a locking groove 23 matching the locking block 22 is provided on the boom 30. The wind speed sensor 31 is electrically connected to the control system. The control system controls the piston end 212 of the electric push rod 21 to extend and retract according to the preset wind speed threshold, which drives the boom 30 to rotate along the hinge point with the support arm 20. After the boom 30 is folded into place, the locking block 22 is embedded in the locking groove 23 to complete the locking.

[0016] This technical solution enables intelligent wind protection for the crane in complex windy environments at ports. Wind speed sensor 31 monitors the ambient wind speed in real time. When a preset threshold is reached, the control system responds immediately, precisely controlling the electric push rod 21 to extend and retract the piston end 212. This causes the boom 30 to rotate along the hinge point with the support arm 20, while the piston end 212 rotates along the hinge point of the boom 30, and the cylinder 211 rotates along the hinge point of the support arm 20, completing the crane folding. This automated wind protection mechanism eliminates the need for manual operation, greatly improving the timeliness and accuracy of responding to sudden strong winds. It effectively prevents the boom 30 from swaying, colliding, or even overturning due to strong winds. Furthermore, after the boom 30 is folded into place, the locking structure of the locking block 22 and the locking groove 23 further enhances the stability of the equipment in windproof conditions, ensuring the reliability of the crane structure in windy environments, reducing the risk of equipment damage, extending the equipment's service life, and providing strong support for efficient port operations.

[0017] Furthermore, a mounting bracket 32 ​​is connected to one side of the boom 30, the wind speed sensor 31 is fixed on the mounting bracket 32, and a hook assembly 33 is provided on the side of the boom 30 away from the wind speed sensor 31.

[0018] Through this technical solution, the mounting bracket 32 ​​provides a stable and reasonable installation position for the wind speed sensor 31, enabling the wind speed sensor 31 to be better exposed to the environment and accurately detect wind speed.

[0019] Furthermore, the base 10 and the support arm 20 are connected by a flange 11, and the flange 11 is equidistantly connected with a number of bolts 111 around its circumference, and one end of the bolts 111 is threaded with a nut 12.

[0020] Through this technical solution, the bolts 111 and nuts 12, which are equidistantly distributed around the circumference of the flange 11, are combined to evenly distribute the connection force across the entire flange 11, avoiding structural damage caused by local stress concentration. This connection method not only enhances the connection strength between the base 10 and the support arm 20, but also facilitates quick operation during installation, disassembly, or maintenance, reducing maintenance difficulty and cost.

[0021] Furthermore, the flange 11 is provided with a number of reinforcing ribs 13 at equal intervals around its circumference. The reinforcing ribs 13 are spaced apart from the bolts 111, and the reinforcing ribs 13 are connected to the support arm 20.

[0022] Through this technical solution, the reinforcing ribs 13 and bolts 111 are spaced apart to form an interlaced support structure. On the basis of the fastening force provided by the bolts 111, the load and stress transmitted from the support arm 20 to the base 10 are further dispersed, which effectively avoids the deformation of the flange 11 or the loosening of the bolts 111 due to the concentration of force, enhances the overall rigidity of the crane, and improves the reliability of the crane when subjected to extreme working conditions such as strong winds.

[0023] Furthermore, the base 10 is provided with fixed seats 14 on both sides for connecting with the shipbuilding gantry crane.

[0024] This technical solution enables the fixed base 14 to quickly and accurately dock with the shipbuilding gantry crane, significantly shortening the equipment installation time.

[0025] Furthermore, a maintenance frame 34 is connected to the end of the boom 30 near the wind speed sensor 31.

[0026] Through this technical solution, the maintenance frame 34 provides a stable working space for maintenance personnel and provides a reliable guarantee for the maintenance of the boom 30 equipment.

[0027] Working principle: The crane is securely connected to the shipbuilding gantry crane through the fixed seats 14 on both sides of the base 10. The base 10 and the support arm 20 are fastened together by the flange 11, bolts 111 and nuts 12, and reinforced with reinforcing ribs 13 to enhance the structural rigidity, providing a stable foundation for crane operation. During operation, the hook assembly 33 is used to lift and transport the items required for maintenance. The wind speed sensor 31 on the mounting bracket 32 ​​at one end of the boom 30 continuously monitors the ambient wind speed in real time and transmits the data to the control system in real time. When the ambient wind speed reaches the preset threshold, the control system drives the electric push rod 21 on the support arm 20 to start. The piston end 212 of the electric push rod 21 begins to extend and retract, driving the boom 30 to rotate around the hinge point with the support arm 20. At the same time, the piston end 212 rotates along the hinge point of the boom 30, and the cylinder 211 rotates along the hinge point of the support arm 20, completing the folding of the crane. After the boom 30 is folded into place, the locking block 22 on the support arm 20 is precisely embedded in the locking groove 23 of the boom 30 to complete the locking, effectively reducing wind resistance and enhancing the stability of the equipment in windy conditions.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or specific orientation structure and operation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0029] In the description of this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, those skilled in the art can combine different embodiments or examples and features of different embodiments or examples described in this utility model without contradiction.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic folding windproof crane for maintenance of gantry cranes in port shipbuilding, comprising a base (10), a support arm (20) and a boom (30), wherein the base (10) is fixedly connected to the bottom end of the support arm (20), and the top end of the support arm (20) is hinged to the boom (30); Its features are: An electric push rod (21) is provided on the support arm (20). The electric push rod (21) includes a cylinder (211) and a piston end (212). The cylinder (211) is hinged to the support arm (20), and the piston end (212) is hinged to the boom (30). A wind speed sensor (31) for real-time detection of ambient wind speed is provided at one end of the boom (30). A locking block (22) is provided on the support arm (20), and a slot (23) matching the locking block (22) is opened on the boom (30). The wind speed sensor (31) is electrically connected to the control system. The control system controls the piston end (212) of the electric push rod (21) to extend and retract according to the preset wind speed threshold, which drives the boom (30) to rotate along the hinge point with the support arm (20). After the boom (30) is folded into place, the locking block (22) is embedded in the slot (23) to complete the locking.

2. The automatic folding windproof crane for maintenance of port shipbuilding gantry cranes according to claim 1, characterized in that: A mounting bracket (32) is connected to one side of the boom (30), the wind speed sensor (31) is fixed on the mounting bracket (32), and a hook assembly (33) is provided on the side of the boom (30) away from the wind speed sensor (31).

3. The automatic folding windproof crane for maintenance of port shipbuilding gantry cranes according to claim 2, characterized in that: The base (10) and the support arm (20) are connected by a flange (11). The flange (11) is connected with a number of bolts (111) at equal intervals around the circumference. One end of the bolt (111) is threaded with a nut (12).

4. The automatic folding windproof crane for maintenance of port shipbuilding gantry cranes according to claim 3, characterized in that: The flange (11) is provided with a number of reinforcing ribs (13) at equal intervals around the circumference. The reinforcing ribs (13) are spaced apart from the bolts (111), and the reinforcing ribs (13) are connected to the support arm (20).

5. The automatic folding windproof crane for maintenance of port shipbuilding gantry cranes according to claim 1, characterized in that: The base (10) has fixed seats (14) on both sides for connecting with the shipbuilding gantry crane.

6. The automatic folding windproof crane for maintenance of port shipbuilding gantry cranes according to claim 1, characterized in that: The boom (30) is connected to a maintenance frame (34) at the end near the wind speed sensor (31).

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