Lifting device for ships

Abstract

The lifting device comprises a ship plate, the top of the ship plate is connected with a stress plate through two connecting columns, a trolley is arranged between the stress plate and the ship plate, the top of the trolley is rotationally provided with four idler wheels, and the four side faces of the idler wheels make contact with the bottom of the stress plate. Two symmetrically-arranged rotating discs are rotationally arranged on the trolley, a cargo boom is rotationally arranged on the tops of the rotating discs, and the rotating discs are connected with the lower side face of the cargo boom through hydraulic oil cylinders. The top of the trolley abuts against the stress plate to serve as a balance weight of the hoisting equipment, the upper limit of the weight of goods hoisted by the hoisting equipment is greatly increased, the hoisting equipment is arranged on the trolley, the trolley can drive the hoisting equipment to be transferred on a ship plate, the use range of the hoisting equipment is further expanded, and the practicability of the hoisting equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, specifically to a lifting device for ships. Background Technology

[0002] Lifting machinery uses a lifting hook or other lifting device to lift or move heavy objects. The working process of lifting machinery generally includes steps such as lifting, traveling, lowering, and returning to the original position. The lifting mechanism lifts the heavy object from the pick-up location using a lifting device, moves the heavy object through a traveling, slewing, or luffing mechanism, lowers the heavy object to the designated location, and then returns to the original position. With the development of the shipping industry, the application of lifting devices is becoming increasingly widespread. Lifting devices use a lifting hook or other lifting device to lift or move heavy objects.

[0003] However, existing ship lifting equipment is generally fixed on the ship to ensure lifting capacity, which makes it inflexible to use and can only be used for lifting operations within a certain range of the installation location, which is quite inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide a lifting device for ships, in order to overcome the aforementioned shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lifting device for ships, including a ship plate, a load-bearing plate connected to the top of the ship plate by two connecting columns, a trolley disposed between the load-bearing plate and the ship plate, four rollers rotatably disposed on the top of the trolley with their sides in contact with the bottom of the load-bearing plate, two symmetrically arranged turntables rotatably disposed on the trolley, a lifting arm rotatably disposed on the top of the turntables, and the turntables and the lower side of the lifting arm being connected by a hydraulic cylinder.

[0006] Furthermore, the top of the trolley is connected to the top plate via two connecting plates, and the four rollers are rotatably mounted inside the top plate.

[0007] Furthermore, two mounting holes are provided at each end of the trolley, and suction cups are threaded into the mounting holes.

[0008] Furthermore, the suction cup interface is connected to a vacuum pump via a pipe, and the vacuum pump is fixed to the trolley with screws.

[0009] Furthermore, one end of the hydraulic cylinder is rotatably mounted on the side wall of the turntable, the movable end of the hydraulic cylinder is rotatably mounted on the lower side of the lifting arm, and a fixed pulley is fixedly connected to the top of the lifting arm.

[0010] Furthermore, a winch is fixedly installed on the upper side of the lifting arm, and the wire rope wound around the winch passes over a fixed pulley and is fixedly connected to a hook.

[0011] In the above technical solution, the lifting device for ships provided by this utility model has the following beneficial effects:

[0012] This utility model uses a trolley top to support a load-bearing plate, which acts as a counterweight for the lifting equipment, greatly increasing the upper limit of the weight of goods that the equipment can lift. By setting the lifting equipment on the trolley, the trolley can move the lifting equipment on the ship's deck, further expanding the scope of application of the lifting equipment and improving its practicality.

[0013] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0014] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 A structural schematic diagram provided for an embodiment of this utility model;

[0017] Figure 2 A plan view provided for an embodiment of this utility model;

[0018] Figure 3 Provided for the embodiments of this utility model Figure 1 Enlarged view of point A in the middle.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Ship plate; 11. Connecting column; 2. Load-bearing plate; 3. Trolley; 31. Connecting plate; 4. Suction cup; 41. Vacuum pump; 5. Top plate; 51. Roller; 6. Lifting arm; 61. Fixed pulley; 7. Turntable; 8. Hydraulic cylinder; 9. Winch; 91. Hook; 92. Wire rope. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0022] Please see Figures 1-3 A lifting device for ships includes a ship plate 1. A load-bearing plate 2 is connected to the top of the ship plate 1 by two connecting columns 11. A trolley 3 is arranged between the load-bearing plate 2 and the ship plate 1. Four rollers 51 with sides in contact with the bottom of the load-bearing plate 2 are rotatably arranged on the top of the trolley 3. Two symmetrically arranged turntables 7 are rotatably arranged on the trolley 3. A lifting arm 6 is rotatably arranged on the top of the turntables 7. The turntables 7 and the lower side of the lifting arm 6 are connected by a hydraulic cylinder 8.

[0023] Specifically, this utility model uses the top of the trolley 3 to press against the force plate 2, thereby acting as a counterweight for the lifting equipment, which greatly increases the upper limit of the weight of goods that the equipment can lift. By setting the lifting equipment on the trolley 3, the trolley 3 can drive the lifting equipment to move on the ship plate 1, further expanding the scope of use of the lifting equipment and improving its practicality.

[0024] Furthermore, the top of the trolley 3 is connected to the top plate 5 via two connecting plates 31, and four rollers 51 are rotatably mounted inside the top plate 5.

[0025] For details, please refer to Figure 1 and Figure 2 A rotating shaft is coaxially arranged on the roller 51. The roller 51 is fixedly sleeved on the rotating shaft. The two ends of the rotating shaft are rotatably set on the top plate 5. When the trolley 3 moves along the force plate 2 on the ship plate 1, the roller 51 rolls at the bottom of the force plate 2, always maintaining the contact mode between the bottom of the force plate 2 and the bottom of the force plate 2. This ensures that the force of the lifting equipment can be transmitted to the force plate 2 and then to the ship plate 1, so that the equipment does not need counterweight, the overall equipment is lighter and easier to transport.

[0026] Furthermore, two mounting holes are provided at each end of the trolley 3. Suction cups 4 are threaded into the mounting holes. The interfaces of the suction cups 4 are connected to a vacuum pump 41 through pipes. The vacuum pump 41 is fixed to the trolley 3 with screws.

[0027] For details, please refer to Figure 1 and Figure 3Each suction cup 4 corresponds to a vacuum pump 41. The suction cup 4 and the vacuum pump 41 are connected by a pipe. By rotating the suction cup 4, the distance between the suction cup 4 flare and the ship plate 1 is changed. When the suction cup 4 flare is tightly attached to the ship plate 1, the vacuum pump 41 is started, so that a negative pressure is formed between the suction cup 4 and the ground, which tightly attaches the suction cup 4 to the ship plate 1, thereby enhancing the stability of the lifting equipment when hoisting goods.

[0028] Furthermore, one end of the hydraulic cylinder 8 is rotatably mounted on the side wall of the turntable 7, the movable end of the hydraulic cylinder 8 is rotatably mounted on the lower side of the lifting arm 6, and a fixed pulley 61 is fixedly connected to the top of the lifting arm 6.

[0029] Specifically, as the turntable 7 rotates, the lifting boom 6 and hydraulic cylinder 8 will rotate synchronously. When the equipment is not in use, such as... Figure 2 As shown, the placement reduces the impact on workers performing other activities on the ship plate 1. When the movable end of the hydraulic cylinder 8 extends, the lifting arm 6 is lifted to carry out the hoisting operation.

[0030] Furthermore, a winch 9 is fixedly installed on the upper side of the lifting boom 6, and a hook 91 is fixedly connected to the wire rope 92 wound around the winch 9 after passing over the fixed pulley 61.

[0031] Specifically, the winch 9 is a product currently on the market. It uses a hook 91 to hook the goods, and the winch 9 drives the drum to rotate via a motor to retract or release the wire rope 92, thereby picking up and putting down the goods.

[0032] In this utility model, reference Figures 1 to 3 First, drive the trolley 3 to move along the force plate 2 to the designated position, then rotate the suction cup 4 so that the flared mouth of the suction cup 4 is close to the boat plate 1. Then start the vacuum pump 41 to create a negative pressure inside the suction cup 4, and the four suction cups 4 are attached to the boat plate 1. Finally, use the lifting device set on the trolley 3.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A lifting device for vessels of the shipboard type, comprising a deck (1), characterized in that: The top of the ship plate (1) is connected with a force plate (2) through two connecting columns (11), a trolley (3) is arranged between the force plate (2) and the ship plate (1), four rollers (51) with four side surfaces in contact with the bottom of the force plate (2) are rotatably arranged on the top of the trolley (3), two symmetrical rotating discs (7) are rotatably arranged on the trolley (3), a hoist arm (6) is rotatably arranged on the top of the rotating disc (7), and the rotating disc (7) and the lower side surface of the hoist arm (6) are connected through a hydraulic oil cylinder (8).

2. A lifting device for a marine vessel as claimed in claim 1, characterised in that, The top of the trolley (3) is connected with a top plate (5) through two connecting plates (31), and the four rollers (51) are rotatably arranged in the top plate (5).

3. A lifting device for marine vessels as claimed in claim 1, wherein, Two mounting holes are formed in the two end portions of the trolley (3), and a suction disc (4) is threadedly connected in the mounting hole.

4. A lifting device for a marine vessel as claimed in claim 3, wherein, A vacuum pump (41) is connected to the interface of the suction disc (4) through a pipeline, and the vacuum pump (41) is fixed on the trolley (3) through screws.

5. A lifting device for marine vessels as claimed in claim 1, wherein, One end of the hydraulic oil cylinder (8) is rotatably arranged on the side wall of the rotating disc (7), the movable end of the hydraulic oil cylinder (8) is rotatably arranged on the lower side surface of the hoist arm (6), and the top end of the hoist arm (6) is fixedly connected with a fixed pulley (61).

6. A lifting device for a marine vessel as claimed in claim 5, characterised in that, A hoist (9) is fixedly installed on the upper side surface of the hoist arm (6), and a steel wire rope (92) wound outside the hoist (9) is fixedly connected with a hook (91) after passing through the fixed pulley (61).

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