Ship traction pulley block

Abstract

A ship traction pulley block effectively solves the problems of low working efficiency and short service life and comprises an anchoring plate, a fixed pulley block arranged on the right side of the anchoring plate, a trolley arranged on the right side of the fixed pulley block, a movable pulley block arranged on the trolley, a first cable sequentially wound on the fixed pulley block and the movable pulley block, and a balance arm hinged to the movable pulley block. The pulley block labor-saving principle is utilized, the combination of the first pulleys and the second pulleys is well designed, stress is even, labor is greatly saved, the weight borne by the rope is reasonably distributed, the needed traction force is greatly reduced, the power burden of traction equipment is effectively relieved, working efficiency is high, energy consumption is reduced, and economical and practical effects are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ship traction equipment, in particular to a ship traction pulley block. Background Art

[0002] In the process of marine engineering construction, ship traction pulleys play a vital role. When a ship is ready to dock at the dock, the traction pulley slowly pulls the ship to the designated berth by connecting the fixed point on the ship and the traction equipment on the shore (such as trailers or shore-based winches, etc.). Due to the frequent exchanges of ships in modern ports and the shortage of berths, the existing ship traction pulleys have low working efficiency, large wear and tear, and reduced service life. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a ship traction pulley block, which effectively solves the problems of low working efficiency and short service life.

[0004] The technical solution to solve the technical problem is: it includes an anchor plate, a fixed pulley block is provided on the right side of the anchor plate, a trolley is provided on the right side of the fixed pulley block, a movable pulley block is provided on the trolley, a first cable is wound around the fixed pulley block and the movable pulley block in sequence, and a balance arm is hinged on the movable pulley block.

[0005] Preferably, 13 pin holes are provided on one side of the anchor plate.

[0006] Preferably, the fixed pulley group includes a plurality of first yoke plates, in which the first pulley shaft and the first connecting shaft are rotatably connected, 10 first pulleys are installed on the first pulley shaft, a pull plate is rotatably connected on the first connecting shaft, 7 pins are installed on one side of the pull plate, the pins correspond to the pin holes, and the plurality of first yoke plates are fixedly connected via a plurality of first supporting sleeves.

[0007] Preferably, the movable pulley group includes a plurality of second yoke plates, in which a second pulley shaft and a second connecting shaft are rotatably connected, 10 second pulleys are mounted on the second pulley shaft, a lifting ear is rotatably connected to the second connecting shaft, the lifting ear is hinged to the balance arm, and the plurality of second yoke plates are fixedly connected via a plurality of second supporting sleeves.

[0008] Preferably, the front and rear ends of the balance arm are rotatably connected to a positioning shaft, a second cable is wound around the positioning shaft, and the other end of the second cable is connected to the ship.

[0009] Preferably, one end of the first cable is fixedly connected to the first yoke plate, the first cable is sequentially wound around the second pulley and the first pulley, and the other end of the first cable is connected to the traction device.

[0010] Preferably, the trolley includes a car body, a support frame corresponding to the second pulley shaft is fixed on the car body, a limit plate located above the second pulley shaft is installed on the support frame, a support platform located below the lifting ear is fixed on the car body, a pad located on the left side of the support platform is fixed on the upper surface of the car body, and the bottom of the second yoke plate is in contact with the upper surface of the pad.

[0011] Compared with the traditional equipment, the utility model has the following advantages: 1) Combining the labor-saving principle of the pulley block, the carefully designed combination of multiple first pulleys and second pulleys can bear the force evenly and greatly save labor. By reasonably distributing the weight borne by the rope, the required traction force is greatly reduced, effectively reducing the power burden of the traction equipment, improving the working efficiency, reducing energy consumption, and providing a more economical and efficient solution for ship traction operations; 2) The pulley assembly of the fixed pulley block and the movable pulley block ensures that it can withstand the traction weight and will not deform or be damaged under long-term high-load operation, thereby reducing the risk of rope wear and extending the service life; 3) The overall disassembly and assembly are convenient, which is convenient for on-site installation and later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the front view of the utility model;

[0013] Figure 2 It is a schematic diagram of a top view of the utility model;

[0014] Figure 3 It is a schematic diagram of a cross-sectional view of a fixed pulley block in the utility model;

[0015] Figure 4 It is a schematic diagram of a cross-sectional view of a movable pulley block in the utility model;

[0016] Figure 5 It is a schematic diagram of a cross-sectional view of a balance arm in the utility model;

[0017] Figure 6 It is a schematic diagram of the main view of the small vehicle of the utility model;

[0018] Figure 7 It is a schematic diagram of a top view of a small vehicle in the utility model;

[0019] Figure 8 It is a schematic diagram of a left view of a small vehicle of the utility model.

[0020] Figure numerals: 1. anchor plate; 2. fixed pulley block; 3. trolley; 4. movable pulley block; 5. first cable; 6. balance arm; 7. pin hole; 8. first yoke plate; 9. first pulley shaft; 10. first connecting shaft; 11. first pulley; 12. pull plate; 13. pin; 14. first support sleeve; 15. second yoke plate; 16. second pulley shaft; 17. second connecting shaft; 18. second pulley; 19. lifting ear; 20. second support sleeve; 21. positioning shaft; 22. second cable; 23. support frame; 24. limit plate; 25. support platform; 26. pad. DETAILED DESCRIPTION

[0021] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0022] Depend on Figures 1 to 8 A ship traction pulley block is provided, comprising an anchor plate 1, a fixed pulley block 2 is provided on the right side of the anchor plate 1, a trolley 3 is provided on the right side of the fixed pulley block 2, a movable pulley block 4 is provided on the trolley 3, a first cable 5 is wound around the fixed pulley block 2 and the movable pulley block 4 in sequence, and a balance arm 6 is hinged on the movable pulley block 4.

[0023] One side of the anchor plate 1 is provided with 13 pin holes 7 , and two reinforcing plates with a thickness of 40 mm are added on both sides of the upper and lower sides of the pin holes 7 to enhance the strength of the pin holes 7 , and the reinforcing plates are fixedly connected to the anchor plate 1 .

[0024] The fixed pulley group 2 includes a plurality of first yoke plates 8, in which a first pulley shaft 9 and a first connecting shaft 10 are rotatably connected, ten first pulleys 11 are mounted on the first pulley shaft 9, a pull plate 12 is rotatably connected on the first connecting shaft 10, seven pins 13 are mounted on one side of the pull plate 12, the pins 13 correspond to the pin holes 7, and the plurality of first yoke plates 8 are fixedly connected via a plurality of first supporting sleeves 14.

[0025] The movable pulley group 4 includes a plurality of second yoke plates 15, in which a second pulley shaft 16 and a second connecting shaft 17 are rotatably connected, 10 second pulleys 18 are mounted on the second pulley shaft 16, a lifting ear 19 is rotatably connected to the second connecting shaft 17, and the lifting ear 19 is hinged to the balance arm 6. The plurality of second yoke plates 15 are fixedly connected via a plurality of second supporting sleeves 20.

[0026] The front and rear ends of the balance arm 6 are rotatably connected to a positioning shaft 21, a second cable 22 is wound around the positioning shaft 21, and the other end of the second cable 22 is connected to the ship.

[0027] One end of the first cable 5 is fixedly connected to the first yoke plate 8 , the first cable 5 is wound around the second pulley 18 and the first pulley 11 in sequence, and the other end of the first cable 5 is connected to a traction device.

[0028] The trolley 3 includes a body, a support frame 23 corresponding to the second pulley shaft 16 is fixed on the body, a limit plate 24 located above the second pulley shaft 16 is installed on the support frame 23, a support platform 25 located below the lifting ear 19 is fixed on the body, a pad 26 located on the left side of the support platform 25 is fixed on the upper surface of the body, and the bottom of the second yoke plate 15 is in contact with the upper surface of the pad 26.

[0029] When the utility model is in use, the anchor plate 1 is fixed on the foundation, 13 pin holes 7 are provided on one side of the anchor plate 1, 7 pins 13 are installed on one side of the pull plate 12, the number of the pin holes 7 is greater than the number of the pins 13, one pin 13 is installed corresponding to one pin hole 7, and the position of the fixed pulley block 2 can be fine-tuned forward and backward by adjusting the position of the pin 13, so that it can obtain better performance. When the ship is ready to dock at the pier, one end of the second cable 22 is wound around the positioning shaft 21, and the other end of the second cable 22 is connected to the ship. The first cable 5 is connected to a traction device (such as a trailer or a shore-based winch, etc.), and the traction device is started. The traction device tightens the first cable 5, and the first cable 5 is wound around the first pulley 11 and the second pulley 18 in sequence. The first pulley 11 drives the first pulley shaft 9 to rotate, and the second pulley 18 drives the second pulley shaft 16 to rotate. The first cable 5 pulls the pulley block 4, the balance arm 6 and the trolley 3 as a whole to move closer to the fixed pulley block 2, and the balance arm 6 drives the ship to move closer to the fixed pulley block 2 via the second cable 22, thereby steadily docking the ship at the pier.

[0030] In addition, we increase the firmness and safety factor by installing a reinforcement plate on the balance arm 6, adding multiple pin holes 7 and reinforcement plates on the anchor plate 1, selecting reasonable materials and heat treatment methods to improve the strength of the pin 13, and using rectangular tubes as the main structural components to make the trolley 3. This not only reduces the weight of the trolley 3 but also effectively increases the overall firmness of the trolley 3. The main steel structure load-bearing parts of the fixed pulley block 2 and the movable pulley block 4 and the anchor plate 1 are made of low-alloy high-strength structural steel Q355B steel plates.

[0031] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model are within the protection scope of the technical solution of the utility model.

Claims

1. A ship traction pulley block, characterized in that: The invention comprises an anchor plate (1), a fixed pulley block (2) is arranged on the right side of the anchor plate (1), a trolley (3) is arranged on the right side of the fixed pulley block (2), a movable pulley block (4) is arranged on the trolley (3), a first cable (5) is wound around the fixed pulley block (2) and the movable pulley block (4) in sequence, and a balancing arm (6) is hingedly connected to the movable pulley block (4).

2. A ship traction pulley block according to claim 1, characterized in that: One side of the anchor plate (1) is provided with 13 pin holes (7).

3. A ship traction pulley block according to claim 2, characterized in that: The fixed pulley block (2) comprises a plurality of first yoke plates (8), wherein a first pulley shaft (9) and a first connecting shaft (10) are rotatably connected inside the plurality of first yoke plates (8), ten first pulleys (11) are mounted on the first pulley shaft (9), a pull plate (12) is rotatably connected to the first connecting shaft (10), seven pins (13) are mounted on one side of the pull plate (12), the pins (13) correspond to the pin holes (7), and the plurality of first yoke plates (8) are fixedly connected via a plurality of first support sleeves (14).

4. A ship traction pulley block according to claim 1, characterized in that: The movable pulley block (4) comprises a plurality of second yoke plates (15), a second pulley shaft (16) and a second connecting shaft (17) being rotatably connected inside the plurality of second yoke plates (15), ten second pulleys (18) being mounted on the second pulley shaft (16), a lifting lug (19) being rotatably connected to the second connecting shaft (17), the lifting lug (19) being hinged to the balance arm (6), and the plurality of second yoke plates (15) being fixedly connected via a plurality of second supporting sleeves (20).

5. A ship traction pulley block according to claim 1, characterized in that: The front and rear ends of the balancing arm (6) are rotatably connected to a positioning shaft (21), a second cable (22) is wound around the positioning shaft (21), and the other end of the second cable (22) is connected to the ship.

6. A ship traction pulley block according to claim 4, characterized in that: The trolley (3) comprises a vehicle body, a support frame (23) corresponding to the second pulley shaft (16) is fixed on the vehicle body, a limit plate (24) located above the second pulley shaft (16) is installed on the support frame (23), a support platform (25) located below the lifting lug (19) is fixed on the vehicle body, a pad (26) located on the left side of the support platform (25) is fixed on the upper surface of the vehicle body, and the bottom of the second yoke plate (15) is in contact with the upper surface of the pad (26).

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