Cable fixing device for rail-mounted gantry crane

Abstract

The utility model discloses a cable fixing device for a rail-mounted gantry crane, relates to the technical field of ship corollary equipment, and provides the following scheme aiming at the problems proposed in the background technology: the cable fixing device comprises a lazy arm, an electric box fixedly connected with the left side of the lazy arm, an access door rotatably connected with the left side of the electric box, and a fixing assembly lapped with the left side of the lazy arm, the fixing assembly comprises a strip-shaped frame, a plurality of through holes are formed in the upper surface and the lower surface of the strip-shaped frame, and strip-shaped mounting plates are fixedly connected to the front face and the back face of the strip-shaped frame. According to the utility model, through the arrangement of the fixing assembly, during use, a plurality of cables can be clamped in the semicircular grooves and the arc-shaped grooves by using the positioning frame, the first movable frame and the second movable frame, and the cables are blocked through the adjusting screw rod, the bearing sleeve and the stop block, so that the cables are ensured not to be separated, and the fixing effect on the cables is better; and meanwhile, the problem that the cable is easy to break once being pulled in the moving process of the suspension arm can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of ship equipment technology, and in particular to a cable fixing device for a rail-mounted gantry crane. Background Technology

[0002] Rail-mounted gantry cranes, also known as rail-mounted container gantry cranes, are mainly used for loading, unloading, handling, and stacking containers in container rail transfer yards and large container storage and transportation yards. They can also be used as lifting accessories on ships and are a relatively common type of lifting equipment.

[0003] Most rail-mounted cranes currently use electrical boxes for power supply. These boxes are typically installed on the boom surface, and the cables connected to them are secured to the boom surface with clips. However, vibrations generated during prolonged boom movement can cause these clips to gradually come loose, making it easy for the cables to detach from the boom and end up hanging in the air. This not only increases the risks during lifting but also poses a safety hazard if the cables are pulled during boom movement, potentially leading to cable breakage and damage to the electrical box. There is room for improvement in this regard. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a cable fixing device for rail-mounted cranes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cable fixing device for a rail-mounted gantry includes a boom. An electrical box is fixedly connected to the left side of the boom, and an inspection door is rotatably connected to the left side of the electrical box. A fixing assembly is attached to the left side of the boom. The fixing assembly includes a strip frame with several through holes on both its upper and lower surfaces. Strip mounting plates are fixedly connected to both the front and back of the strip frame. Several mounting bolts are threaded onto the left side of each of the two strip mounting plates. A positioning frame is fixedly connected to the right inner wall of the strip frame. A semi-circular groove is formed on the right side of the positioning frame, and a rubber pressure pad is fixedly connected to the inner wall of the semi-circular groove. Two sliding grooves are formed on the right side of the positioning frame, and each sliding groove has a limiter on its inner wall. The groove and the inner wall of the limiting groove are fixedly connected to a limiting rod. A spring is sleeved on the surface of the limiting rod. A movable plate is slidably connected to the inner wall of the sliding groove. A top rod is fixedly connected to the right side of each of the two movable plates. A first movable frame and a second movable frame are fixedly connected to the right end of each of the two top rods, respectively. A storage groove is opened on the back of the first movable frame. An adjusting screw is threadedly connected to the front of the first movable frame. A blocking block is rotatably connected to the rear end of the adjusting screw through a bearing sleeve. A slot is opened on the front of the second movable frame. Arc-shaped grooves are opened on the opposite surfaces of the first and second movable frames. A round hole is opened on the left side of the strip frame. A winding assembly is rotatably connected to the inner wall of the round hole.

[0007] Preferably, the left side of the boom has several threaded grooves that are compatible with the mounting bolts.

[0008] Preferably, the movable plate is slidably connected to the surface of the limiting rod, and the left end of the spring overlaps with the right side of the movable plate and the right end overlaps with the inner wall of the limiting groove. The movable plate can slide on the surface of the limiting rod. When the first movable frame and the second movable frame are pulled to move to the right, the movable plate can compress the spring to cause it to deform.

[0009] Preferably, the blocking block is adapted to the storage slot and the card slot respectively, and the two arc-shaped slots and the semi-circular slot are positioned opposite each other. The blocking block can enter the storage slot and the card slot respectively. The two arc-shaped slots and the semi-circular slot form a circular hole, which can store several cables.

[0010] Preferably, the winding assembly includes a rotating rod, with a limit disk fixedly connected to the right end of the rotating rod, and a winding roller fixedly connected to the surface of the rotating rod.

[0011] Preferably, the left end of the rotating rod extends to the outside of the strip frame and is fixedly connected to a handwheel. The handwheel can drive the rotating rod to rotate, thereby driving the winding roller to rotate.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. By setting up a fixing component, during use, several cables can be clamped inside the semi-circular groove and arc groove using the positioning frame, the first movable frame and the second movable frame. The cables are blocked by the adjusting screw, bearing sleeve and blocking block to ensure that the cables will not come off. The fixing effect of the cables is good, and it can also avoid the problem that the cables are easily broken if they are pulled during the movement of the boom.

[0014] 2. By setting up a winding component, excessively long cables can be wound up and stored inside the bar frame during use, preventing them from hanging on the outside. This reduces the risk of cables hanging on the outside affecting the lifting operation and also improves the overall aesthetics of the boom. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a cable fixing device for a rail gantry proposed in this utility model;

[0016] Figure 2 This is a front sectional view of a cable fixing device for a rail crane proposed in this utility model;

[0017] Figure 3 This is a top-section diagram of the positioning frame of a cable fixing device for a rail crane proposed in this utility model.

[0018] In the diagram: 1. Boom; 2. Electrical box; 3. Strip frame; 4. Strip mounting plate; 5. Positioning frame; 6. Rubber pad; 7. Limiting rod; 8. Spring; 9. Movable plate; 10. Top rod; 11. First movable frame; 12. Second movable frame; 13. Adjusting screw; 14. Bearing sleeve; 15. Blocking block; 16. Rotating rod; 17. Limiting disc; 18. Winding roller; 19. Handwheel. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Example 1, referring to Figure 1 , Figure 2 and Figure 3 A cable fixing device for a rail crane includes a boom 1, an electrical box 2 fixedly connected to the left side of the boom 1, an inspection door rotatably connected to the left side of the electrical box 2, a fixing component overlapping the left side of the boom 1, the fixing component including a strip frame 3, several through holes opened on the upper and lower surfaces of the strip frame 3, strip mounting plates 4 fixedly connected to the front and back of the strip frame 3, several mounting bolts threadedly connected to the left side of the two strip mounting plates 4, and several threaded grooves adapted to the mounting bolts opened on the left side of the boom 1;

[0021] A positioning frame 5 is fixedly connected to the right inner wall of the strip frame 3. A semi-circular groove is opened on the right side of the positioning frame 5. A rubber pad 6 is fixedly connected to the inner wall of the semi-circular groove. Two sliding grooves are opened on the right side of the positioning frame 5. A limit groove is opened on the inner wall of each sliding groove. A limit rod 7 is fixedly connected to the inner wall of the limit groove. A spring 8 is sleeved on the surface of the limit rod 7. A movable plate 9 is slidably connected to the inner wall of the sliding groove. The movable plate 9 is slidably connected to the surface of the limit rod 7. The left end of the spring 8 overlaps with the right side of the movable plate 9, and the right end overlaps with the inner wall of the limit groove. A top rod 10 is fixedly connected to the right side of each of the two movable plates 9. The right ends of the two top rods 10 are respectively fixedly connected to the first movable frame 11 and the second movable frame 12.

[0022] The back of the first movable frame 11 is provided with a storage groove. The front of the first movable frame 11 is threaded with an adjusting screw 13. The rear end of the adjusting screw 13 is rotatably connected to a blocking block 15 through a bearing sleeve 14. The front of the second movable frame 12 is provided with a slot. The blocking block 15 is adapted to the storage groove and the slot respectively. The opposite surfaces of the first movable frame 11 and the second movable frame 12 are provided with arc-shaped grooves, and the two arc-shaped grooves correspond to the semi-circular grooves. The left side of the strip frame 3 is provided with a round hole, and the inner wall of the round hole is rotatably connected to a winding assembly.

[0023] After passing the cable through the through hole above the strip frame 3, rotate the adjusting screw 13. This causes the blocking block 15 to move backward through the bearing sleeve 14, simultaneously sinking it into the storage groove. At this point, the first movable frame 11 and the second movable frame 12 are no longer obstructed, allowing the cable to be inserted into the rubber pressure pad 6 in the semi-circular groove. Then, rotate the adjusting screw 13 in the opposite direction to return the blocking block 15 to its original position. In conjunction with the movable plate 9, the top rod 10, and the spring 8, the cable can be locked in the semi-circular groove, thus securing the cable and ensuring that it will not come loose or break after prolonged use. This provides a good positioning effect for the cable.

[0024] Example 2: Refer to Figure 1 and Figure 2 The winding assembly includes a rotating rod 16, with a limit plate 17 fixedly connected to the right end of the rotating rod 16, a winding roller 18 fixedly connected to the surface of the rotating rod 16, and a handwheel 19 fixedly connected to the left end of the rotating rod 16 extending to the outside of the strip frame 3.

[0025] When the cable is too long, the excess part of the cable can be wound around the surface of the winding roller 18. The handwheel 19 drives the rotating rod 16 to rotate, which in turn drives the winding roller 18 to rotate and rewind the cable. After the cable is adjusted to a suitable length, it can be connected to the required power supply equipment. This method is highly flexible and can ensure that the cable will not be dragged too long.

[0026] Working principle: First, the cable inside the electrical box 2 is passed through the through hole on the upper surface of the strip frame 3, allowing the cable to enter the interior of the strip frame 3. At this time, rotating the adjusting screw 13 causes the blocking block 15 to move backward through the bearing sleeve 14, allowing it to enter the receiving slot. At this time, the obstruction between the first movable frame 11 and the second movable frame 12 disappears, and the cable is inserted into the semi-circular groove and contacts the rubber pressure pad 6. Then, rotating the adjusting screw 13 in the opposite direction causes the blocking block 15 to engage in the slot, thereby locking the cable position. The first movable frame 11 and the second movable frame 12 are subjected to the force of the top rod 10, the movable plate 9, and the spring 8, ensuring they remain firmly pressed against the right side of the positioning frame 5. When there are many cables, the size of the semi-circular groove and the arc groove can be automatically and elastically adjusted to ensure that the cables will not swing and fall off at will, thus improving stability. The cables pass through the through holes and enter the inside of the strip frame 3, so that the cables will not come into contact with the surface of the boom 1, thereby reducing the wear rate of the cables and improving durability. When the cables are too long, they are wound around the surface of the winding roller 18. The handwheel 19 drives the rotating rod 16 to rotate, which drives the winding roller 18 to rotate, thereby performing the cable winding and unwinding operation, which is highly flexible. Finally, the strip frame 3 is fixedly installed on the side of the boom 1 and below the electrical box 2 using the strip mounting plate 4 and mounting bolts.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cable fixing device for a rail crane, comprising a boom (1), an electrical box (2) fixedly connected to the left side of the boom (1), an inspection door rotatably connected to the left side of the electrical box (2), and a fixing assembly overlapping the left side of the boom (1), characterized in that, The fixing component includes a strip frame (3), with several through holes on both the upper and lower surfaces of the strip frame (3). Strip mounting plates (4) are fixedly connected to both the front and back of the strip frame (3). Several mounting bolts are threaded onto the left side of each of the two strip mounting plates (4). A positioning frame (5) is fixedly connected to the right inner wall of the strip frame (3). A semi-circular groove is opened on the right side of the positioning frame (5). A rubber pad (6) is fixedly connected to the inner wall of the semi-circular groove. Two sliding grooves are opened on the right side of the positioning frame (5). Limit grooves are opened on the inner walls of the two sliding grooves. Limit rods (7) are fixedly connected to the inner walls of the limit grooves. Springs (8) are sleeved on the surface of the limit rods (7). A movable spring is slidably connected to the inner walls of the sliding grooves. The movable plate (9) has a top rod (10) fixedly connected to the right side of each of the two movable plates (9). The right ends of the two top rods (10) are respectively fixedly connected to the first movable frame (11) and the second movable frame (12). The back of the first movable frame (11) is provided with a storage groove. The front of the first movable frame (11) is threadedly connected to an adjusting screw (13). The rear end of the adjusting screw (13) is rotatably connected to a blocking block (15) through a bearing sleeve (14). The front of the second movable frame (12) is provided with a slot. The opposite surfaces of the first movable frame (11) and the second movable frame (12) are provided with arc-shaped grooves. The left side of the strip frame (3) is provided with a round hole. The inner wall of the round hole is rotatably connected to a winding assembly.

2. The cable fixing device for a rail gantry according to claim 1, characterized in that, The left side of the boom (1) has several threaded grooves that are compatible with the mounting bolts.

3. The cable fixing device for a rail gantry according to claim 1, characterized in that, The movable plate (9) is slidably connected to the surface of the limiting rod (7), and the left end of the spring (8) overlaps with the right side of the movable plate (9), while the right end overlaps with the inner wall of the limiting groove.

4. The cable fixing device for a rail gantry according to claim 1, characterized in that, The blocking block (15) is adapted to the storage slot and the card slot respectively, and the two arc-shaped slots correspond to the semi-circular slot.

5. A cable fixing device for a rail gantry according to claim 1, characterized in that, The winding assembly includes a rotating rod (16), with a limit disk (17) fixedly connected to the right end of the rotating rod (16), and a winding roller (18) fixedly connected to the surface of the rotating rod (16).

6. A cable fixing device for a rail gantry according to claim 5, characterized in that, The left end of the rotating rod (16) extends to the outside of the strip frame (3) and is fixedly connected to a handwheel (19).

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