A cable pulling device for cable laying

Abstract

The utility model relates to the technical field of cable laying, specifically a cable traction device for cable laying, comprising a U-shaped frame, the front end of the frame having an opening, both sides of the frame at the front end of the opening are provided with through grooves, the rear ends of the two through grooves are provided with hydraulic cylinders, the front ends of the two through grooves are provided with sliding blocks, the sliding blocks are connected to the power output end of the hydraulic cylinder, the two sliding blocks are provided with through holes, push-pull rods are respectively provided in the two through holes, the rear end of the opening is provided with a driving roller, the outer side of the frame is provided with a first motor for driving the driving roller, and the top of the rear end of the frame is provided with a wire pulling device. The hydraulic cylinder drives the push-pull rod to move toward the driving roller until the cable drum is lifted, and after the cable passes through the wire pulling device, the laying of the cable is completed by the rotation of the driving roller and the wire pulling device, thereby reducing the labor intensity of the operator and improving the efficiency of cable laying.

Description

Technical Field

[0001] The utility model relates to the technical field of cable laying, in particular to a cable traction device for cable laying. Background Art

[0002] During the cable laying process, the cable is usually tied with a steel wire rope for dragging or the cable outer sheath is pulled with a pig cage. However, the existing cable laying traction device is prone to damage due to excessive traction force during traction, which reduces the service life of the cable. In addition, the cables are of different sizes, and manual adjustment is required when pulling cables of different sizes, which greatly affects the normal cable laying efficiency and quality. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a cable traction device for cable laying. The two push-pull rods are pulled apart by a handle to push the frame so that the cable drum is located between the push-pull rod and the driving roller. The two push-pull rods are brought close to each other and fixed by a mortise and tenon structure. The hydraulic cylinder is started to drive the push-pull rod to move toward the driving roller. When the driving roller and the push-pull rod are in contact with the cable drum, the hydraulic cylinder continues to work until the cable drum is lifted up. After the cable passes through the wire pulling device, the cable is turned out by rotating the driving roller and the wire pulling roller. When the frame moves forward, the laying of the cable is completed.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A cable traction device for cable laying, comprising a U-shaped frame, the front end of the frame having an opening, both sides of the frame at the front end of the opening are provided with through grooves, the rear ends of the two through grooves are provided with hydraulic cylinders, the front ends of the two through grooves are provided with sliding blocks slidably arranged, the sliding blocks are connected to the power output ends of the hydraulic cylinders, the two sliding blocks are provided with through holes, push-pull rods are slidably arranged in the two through holes, a driving roller is rotatably arranged at the rear end of the opening, a first motor for driving the driving roller is provided on the outer side of the frame, and a wire pulling device is provided at the top of the rear end of the frame.

[0006] Preferably, the wire pulling device includes two vertical plates arranged side by side on the top of the rear end of the frame, a top plate is provided on the top of the two vertical plates, and a wire pulling roller is rotatably provided at the bottom between the two vertical plates, a second motor for driving the wire pulling roller is provided on the outside of one of the vertical plates, a mounting hole is opened in the middle of the top plate, a guide rod is passed through the mounting hole, a limiting plate is provided on the top of the guide rod, a spring is sleeved on the guide rod between the limiting plate and the top plate, the top of the spring is fixedly connected to the limiting plate, the bottom of the spring is fixedly connected to the top of the top plate, a U-shaped plate is installed at the bottom of the guide rod, the U-shaped plate is located above the wire pulling roller between the two vertical plates, and an extrusion roller cooperating with the wire pulling roller is rotatably provided in the U-shaped plate.

[0007] Preferably, handles are respectively installed at the ends of the two push-pull rods that are far away from each other, and mortise and tenon structures are provided at the ends of the two push-pull rods that are close to each other, and the two push-pull rods are connected by the mortise and tenon structures.

[0008] Preferably, the push-pull rod and the driving roller are both made of metal.

[0009] Preferably, wheels are installed on both sides of the bottom of the front end of the frame, and universal wheels are installed on both sides of the bottom of the rear end of the frame. The frame has a built-in power source, and the power source is used to drive the wheels.

[0010] Preferably, a push rod is provided at the top of the rear end of the frame.

[0011] Preferably, the surfaces of the wire drawing roller and the squeezing roller are both provided with anti-skid and wear-resistant layers.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model has a simple structure. The two push-pull rods are pulled apart to push the frame so that the cable drum is located between the push-pull rod and the driving roller. The two push-pull rods are abutted against each other, and the hydraulic cylinder is started. The power output end of the hydraulic cylinder drives the push-pull rod on the sliding block to move toward the driving roller. When the driving roller and the push-pull rod are abutted against the cable drum, the hydraulic cylinder continues to work until the cable drum is lifted up. After the cable passes through the wire pulling device, the cable on the cable drum is turned out by the rotation of the driving roller and the wire pulling device, and the frame continues to move forward to complete the laying of the cable, thereby reducing the labor intensity of the operator and improving the efficiency of cable laying.

[0014] 2. The spring on the top plate of the device can drive the limit plate to move toward the top plate, ensuring that the extrusion roller in the U-shaped plate at the bottom of the guide rod approaches the wire pulling roller, thereby realizing the dragging of the cable. This makes it easier for the device to drag and lay cables of different diameters and types, thereby improving the adaptability of the device.

[0015] 3. The power source of the device can drive the wheels to rotate, reducing the labor intensity of the operator. The universal wheel is convenient for steering the device, improving the flexibility of the device. The operator can adjust the direction of travel of the device through the push rod.

[0016] 4. The surfaces of the wire pulling roller and the squeezing roller of the device are provided with anti-skid and wear-resistant layers, which are convenient for increasing the friction force of the squeezing roller and the wire pulling roller on the cable when pulling the cable, facilitating the stable dragging of the cable and improving the service life of the device.

[0017] 5. The two push-pull rods of the device are provided with mortise and tenon structures at the ends close to each other, so that when the two push-pull rods abut against each other, they are fixed through the mortise and tenon structures, ensuring the stability of the push-pull rods when the cable drum is lifted. At the same time, when the cable drum rotates following the driving roller, the two push-pull rods rotate synchronously with the cable drum, reducing the resistance of the cable drum when it rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a left view of the utility model;

[0020] Figure 3 for Figure 2 A magnified view of the local structure;

[0021] Figure 4 The front view of the device when supporting the cable drum;

[0022] Figure 5 This is a schematic diagram of the overall structure of the device when supporting a cable reel.

[0023] In the figure: 1. frame; 2. through groove; 3. hydraulic cylinder; 4. sliding block; 5. through hole; 6. push-pull rod; 7. handle; 8. wheel; 9. universal wheel; 10. first motor; 11. driving roller; 12. push rod; 13. vertical plate; 14. top plate; 15. wire pulling roller; 16. squeezing roller; 17. second motor; 18. U-shaped plate; 19. guide rod; 20. limit plate; 21. spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] A cable pulling device for cable laying, the structure is as follows Figure 1-Figure 5 As shown, it includes a U-shaped frame 1, the front end of the frame 1 has an opening, both sides of the frame 1 at the front end of the opening are provided with through grooves 2, the rear ends of the two through grooves 2 are provided with hydraulic cylinders 3, the front ends of the two through grooves 2 are slidably provided with sliding blocks 4, the sliding blocks 4 are connected to the power output end of the hydraulic cylinder 3, the two sliding blocks 4 are provided with through holes 5, push-pull rods 6 are slidably provided in the two through holes 5, a driving roller 11 is rotatably provided at the rear end of the opening, a first motor 10 for driving the driving roller 11 is provided on the outer side of the frame 1, and a wire pulling device is provided on the top of the rear end of the frame 1.

[0027] When laying the cable, pull the two push-pull rods 6 apart, push the frame 1, so that the cable drum is located between the push-pull rod 6 and the driving roller 11, make the two push-pull rods 6 abut against each other, start the hydraulic cylinder 3, and the power output end of the hydraulic cylinder 3 drives the push-pull rod 6 on the sliding block 4 to move toward the driving roller 11. When the driving roller 11 and the push-pull rod 6 abut against the cable drum, the hydraulic cylinder 3 continues to work until the cable drum is lifted up. After the cable passes through the wire pulling device, the cable on the cable drum is turned out by the rotation of the driving roller 11 and the wire pulling device, and the frame 1 continues to move forward to complete the laying of the cable, reduce the labor intensity of the operator, and improve the efficiency of cable laying.

[0028] The wire pulling device includes two vertical plates 13 arranged side by side at the top of the rear end of the frame 1, a top plate 14 is arranged on the top of the two vertical plates 13, and a wire pulling roller 15 is rotatably arranged at the bottom between the two vertical plates 13, and a second motor 17 for driving the wire pulling roller 15 is arranged on the outside of one of the vertical plates 13, a mounting hole is opened in the middle of the top plate 14, a guide rod 19 is passed through the mounting hole, a limit plate 20 is arranged on the top of the guide rod 19, a spring 21 is sleeved on the guide rod 19 between the limit plate 20 and the top plate 14, the top of the spring 21 is fixedly connected to the limit plate 20, and the bottom of the spring 21 is fixedly connected to the top of the top plate 14, a U-shaped plate 18 is installed at the bottom of the guide rod 19, the U-shaped plate 18 is located above the wire pulling roller 15 between the two vertical plates 13, and an extrusion roller 16 cooperating with the wire pulling roller 15 is rotatably arranged in the U-shaped plate 18.

[0029] When laying the cable, one end of the cable passes through the wire drawing roller 15 and the squeezing roller 16, and the wire drawing roller 15 is driven to rotate by the second motor 17 to drag the cable out of the cable drum, thereby achieving the laying of the cable.

[0030] When it is necessary to lay cables of different types, since the diameters of the cables are different, the spring 21 on the top plate 14 of the device can drive the limit plate 20 to move toward the top plate 14, ensuring that the squeezing roller 16 in the U-shaped plate 18 at the bottom end of the guide rod 19 approaches the wire pulling roller 15. When the cable with a large diameter is to be dragged, the squeezing roller 16 is moved toward the top of the top plate 14 by an external force. Due to the elastic force of the spring 21, it can be ensured that the squeezing roller 16 squeezes the cable toward the wire pulling roller 15, making it easier for the wire pulling roller 15 to drag the cable.

[0031] When dragging a cable with a small diameter, the elastic force of the spring 21 drives the squeezing roller 16 toward the wire pulling roller 15, and the cable with a small diameter can be squeezed toward the wire pulling roller 15, thereby dragging the cable. This makes it easy for the device to drag and lay cables of different diameters and types, thereby improving the adaptability of the device.

[0032] The ends of the two push-pull rods 6 that are far away from each other are respectively provided with handles 7. The push-pull rods 6 and the driving roller 11 are both made of metal.

[0033] The handle 7 can be used to pull the push-pull rod 6 in the through hole 5 of the sliding block 4, so that the push-pull rod 6 can be pulled away from each other and pushed to abut against each other, so that the frame 1 can be pushed to the cable drum after the push-pull rod 6 is pulled out, so that the cable drum can be placed between the push-pull rod 6 and the driving roller 11. After the push-pull rod 6 is abutted against each other, the hydraulic cylinder 3 can drive the push-pull rod 6 to move toward the driving roller 11 until the cable drum is supported, so that when the driving roller 11 rotates, the cable drum can be driven to rotate together, so that the cable on the cable drum can be rotated and loosened, which is convenient for laying the cable. The push-pull rod 6 and the driving roller 11 made of metal can increase the service life of the device and improve the stability of the device during laying.

[0034] Wheels 8 are installed on both sides of the bottom of the front end of the frame 1, and universal wheels 9 are installed on both sides of the bottom of the rear end of the frame 1. The frame 1 has a built-in power source, and the power source is used to drive the wheels 8. A push rod 12 is arranged on the top of the rear end of the frame 1.

[0035] The wheel 8 can be driven to rotate by a power source, which reduces the labor intensity of the operator. The universal wheel 9 facilitates the steering of the device and improves the flexibility of the device. The operator can adjust the travel direction of the device by a push rod 12.

[0036] The surfaces of the wire drawing roller 15 and the squeezing roller 16 are both provided with anti-skid and wear-resistant layers.

[0037] Since the surfaces of the wire pulling roller 15 and the squeezing roller 16 are both provided with anti-skid and wear-resistant layers, it is convenient to increase the friction force of the squeezing roller 16 and the wire pulling roller 15 when pulling the cable, so as to facilitate stable dragging of the cable and improve the service life of the device.

[0038] Embodiment 2

[0039] On the basis of the first embodiment, the adjacent ends of the two push-pull rods 6 are provided with a mortise and tenon structure, and the two push-pull rods 6 are connected by the mortise and tenon structure.

[0040] The mortise and tenon structure is set up so that when the two push-pull rods 6 abut against each other, they are fixed through the mortise and tenon structure, ensuring the stability of the push-pull rods 6 when the cable drum is lifted. At the same time, when the cable drum rotates following the driving roller 11, the two push-pull rods 6 rotate synchronously with the cable drum, reducing the resistance of the cable drum when it rotates.

[0041] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or additions, subtractions or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A cable pulling device for cable laying, comprising a U-shaped frame (1), the front end of the frame (1) having an opening, characterized in that: Both sides of the frame (1) at the front end of the opening are provided with through grooves (2), the rear ends of the two through grooves (2) are provided with hydraulic cylinders (3), the front ends of the two through grooves (2) are provided with sliding blocks (4) for sliding, the sliding blocks (4) are connected to the power output end of the hydraulic cylinder (3), the two sliding blocks (4) are provided with through holes (5), and push-pull rods (6) are respectively slidably provided in the two through holes (5), the rear end of the opening is provided with a driving roller (11) for rotation, the outer side of the frame (1) is provided with a first motor (10) for driving the driving roller (11), and the top of the rear end of the frame (1) is provided with a wire pulling device.

2. A cable pulling device for cable laying according to claim 1, characterized in that: The wire pulling device comprises two vertical plates (13) arranged side by side at the top of the rear end of the frame (1), a top plate (14) is arranged on the top of the two vertical plates (13), a wire pulling roller (15) is rotatably arranged at the bottom between the two vertical plates (13), a second motor (17) for driving the wire pulling roller (15) is arranged on the outside of one of the vertical plates (13), a mounting hole is opened in the middle of the top plate (14), a guide rod (19) is passed through the mounting hole, and a limit plate (20) is arranged on the top of the guide rod (19) A spring (21) is sleeved on the guide rod (19) between the limit plate (20) and the top plate (14), the top of the spring (21) is fixedly connected to the limit plate (20), the bottom of the spring (21) is fixedly connected to the top of the top plate (14), a U-shaped plate (18) is installed at the bottom of the guide rod (19), the U-shaped plate (18) is located above the wire drawing roller (15) between the two vertical plates (13), and an extrusion roller (16) cooperating with the wire drawing roller (15) is rotatably arranged inside the U-shaped plate (18).

3. A cable pulling device for cable laying according to claim 1, characterized in that: Handles (7) are respectively installed at the ends of the two push-pull rods (6) that are far away from each other, and mortise and tenon structures are arranged at the ends of the two push-pull rods (6) that are close to each other, and the two push-pull rods (6) are connected via the mortise and tenon structures.

4. A cable pulling device for cable laying according to claim 1, characterized in that: The push-pull rod (6) and the driving roller (11) are both made of metal.

5. A cable pulling device for cable laying according to claim 1, characterized in that: Wheels (8) are installed on both sides of the bottom of the front end of the frame (1), and universal wheels (9) are installed on both sides of the bottom of the rear end of the frame (1). The frame (1) has a built-in power source, and the power source is used to drive the wheels (8).

6. A cable pulling device for cable laying according to claim 1, characterized in that: A push rod (12) is arranged on the top of the rear end of the frame (1).

7. A cable pulling device for cable laying according to claim 2, characterized in that: The surfaces of the wire drawing roller (15) and the squeezing roller (16) are both provided with anti-skid and wear-resistant layers.

Images