A wire-laying pulley for the process of stringing wires to iron towers

Abstract

This invention discloses a cable-laying pulley for tower stringing, comprising: a support frame, arranged in a rectangular frame shape, including a base rod, a top rod, and a pair of side rods, the base rod and top rod being horizontally arranged, and the side rods being vertically arranged between the two ends of the base rod and top rod; a cable-laying reel, including a rotating shaft and a guide wheel, the rotating shaft being horizontally arranged between the pair of side rods, and the guide wheel being rotatably connected to the rotating shaft; a sling, arranged on the top rod; and sliders arranged at both ends of the rotating shaft, the sliders being vertically slidably connected to the side rods, a spring being arranged below the sliders, and a drive mechanism for controlling the shaking of the sliders being arranged on the side rods. This invention, by setting a vertically sliding cable-laying reel, and when the guide rope presses the cable-laying reel to its lowest position, then releasing the guide rope to cause the cable-laying reel to shake, automatically makes slight adjustments to the position of the traction guide plate, achieving automatic disengagement from the jammed position, allowing the traction guide plate to smoothly cross the cable-laying reel, and achieving stable cable laying.

Description

Technical Field

[0001] This invention relates to the field of power facilities, and in particular to a wire-laying pulley for the process of stringing wires on iron towers. Background Technology

[0002] The wire laying pulley is an important tool used in power line construction for laying cables such as conductors or ground wires. It is usually installed on the tower or crossing structure to guide and support the direction of the conductor during the laying process, reduce frictional resistance, protect the conductor surface from damage, and improve laying efficiency.

[0003] In the traditional cable laying process, the laying pulley is usually suspended on the tower, and then the guide rope is passed over the laying pulley. The guide rope is used to pull the traction board on which the cable is installed, so that the traction board and the cable can pass over the laying pulley to realize the laying operation.

[0004] The existing technical problem is that when the traction board gets stuck at the position of the cable laying pulley, if the traction force is continuously applied, the guide rope will break. Therefore, it is necessary to manually strike the cable laying pulley with a wooden stick to make the cable laying pulley shake, so that the traction board can smoothly cross the cable laying pulley. However, this process is very inconvenient and affects the laying of the cable, and needs to be improved. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a wire-laying pulley for the process of stringing iron towers. The technical problem to be solved is that when the traditional traction guide plate encounters a jamming phenomenon at the position of the wire-laying pulley, manual control of the wire-laying pulley's vibration is required to complete the wire laying.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a wire-laying pulley for the process of stringing wires on iron towers, comprising: The support frame is arranged in a rectangular frame shape and includes a bottom rod, a top rod and a pair of side rods. The bottom rod and the top rod are arranged horizontally, and the side rods are arranged vertically between the two ends of the bottom rod and the top rod. A line-feeding reel includes a rotating shaft and a guide wheel. The rotating shaft is horizontally disposed between a pair of side rods, and the guide wheel is rotatably connected to the rotating shaft. The slings are mounted on the top rod and used to secure the tower. Both ends of the rotating shaft are provided with sliders, which are vertically slidably connected to the side rod. A spring is provided below the slider, and a drive mechanism is provided on the side rod to control the slider to vibrate when the slider slides to the lowest end.

[0007] In a preferred embodiment, the present invention can be further configured such that: the driving mechanism includes a driving rod, a guide rod, and a guide block; the driving rod is vertically disposed on the lower end face of the slider and rotatably connected to the slider; the guide rod is cylindrical and horizontally disposed on the lower end of the driving rod; the guide block is vertically disposed on the side rod; and the guide block is provided with an annular guide groove for the guide rod to slide.

[0008] In a preferred embodiment, the present invention can be further configured such that: the guide groove includes a strip groove, a zigzag groove, and a sawtooth groove; the strip groove is vertically disposed at the upper end of the guide block; the zigzag groove and the sawtooth groove are distributed on both sides of the strip groove; the zigzag groove and the sawtooth groove are arranged in a rhomboid shape, and their lower ends are interconnected, while their upper ends are connected to the lower end of the strip groove.

[0009] In a preferred embodiment, the present invention may be further configured such that a sensor for monitoring the guide rod is provided at the connection position of the zigzag groove and the sawtooth groove.

[0010] In a preferred embodiment, the present invention can be further configured such that: the rotating shaft is detachably connected to the slider, the rotating shaft is provided with an insert block, and the slider is provided with a slot for inserting the insert block.

[0011] In a preferred embodiment, the present invention can be further configured such that: the side rod is horizontally slidably connected to the bottom rod and the top rod, and the bottom rod and the top rod are provided with a control mechanism for controlling the horizontal sliding of the side rod.

[0012] In a preferred embodiment, the present invention can be further configured such that: the control mechanism includes a lead screw, a sprocket, a chain, and a handwheel; the lead screw is horizontally rotatably connected to the bottom rod and the top rod, and is threadedly connected to the side rod; the sprocket is located at the end of the lead screw; the chain is wound around the outer wall of the sprocket; and the handwheel is used to control the rotation of the lead screw.

[0013] In a preferred embodiment, the present invention can be further configured such that the ends of the bottom rod and the top rod are vertically disposed on a protective cover located outside the side rod, the protective cover being used to cover the chain.

[0014] In a preferred embodiment, the present invention can be further configured such that: the sling includes a sling plate, a boom, and a pair of wire ropes; the sling plate is horizontally disposed on the top boom and is in the same direction as the length of the top boom; the boom is longitudinally disposed on the sling plate; and the wire ropes are vertically disposed at both ends of the boom.

[0015] In a preferred embodiment, the invention may be further configured such that a plurality of crossbeams are provided transversely and at intervals between a pair of said wire ropes.

[0016] In summary, the present invention has the following beneficial effects: 1. By setting a vertically sliding wire-feeding wheel, and when the guide rope presses the wire-feeding wheel to the lowest position, the guide rope is then loosened to make the wire-feeding wheel vibrate, thereby automatically making slight adjustments to the position of the traction board, realizing automatic disengagement from the jammed position, allowing the traction board to smoothly cross the wire-feeding wheel, and achieving stable wire feeding. 2. By setting a sliding vertical rod and a detachable wire-feeding wheel, different length wire-feeding wheels can be replaced according to wire-feeding needs, meeting different wire-feeding requirements and improving the practicality of the entire wire-feeding pulley; 3. By setting up highly stable slings, the cable-laying reel is stably positioned, preventing it from rotating during operation, thus ensuring stable cable laying. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of an embodiment; Figure 2 This is a schematic diagram of the support frame structure in an embodiment; Figure 3 This is a schematic diagram of the wire feeding reel in an embodiment; Figure 4 This is a schematic diagram of the control mechanism in the embodiment; Figure 5 This is a schematic diagram of the drive mechanism in an embodiment.

[0018] Reference numerals: 1. Support frame; 11. Base rod; 12. Top rod; 13. Side rod; 2. Wire feeding reel; 21. Rotating shaft; 22. Guide wheel; 23. Slider; 24. Spring; 25. Insert block; 26. Slot; 3. Lifting sling; 31. Lifting plate; 32. Lifting rod; 33. Wire rope; 34. Crossbeam; 4. Drive mechanism; 41. Drive rod; 42. Guide rod; 43. Guide block; 44. Guide groove; 45. Strip groove; 46. Zigzag groove; 47. Serrated groove; 48. Sensor; 5. Control mechanism; 51. Lead screw; 52. Sprocket; 53. Chain; 54. Handwheel; 55. Protective cover. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] like Figure 1 As shown, a wire-laying pulley for the process of stringing wires on a steel tower includes a support frame 1, a wire-laying wheel 2, and a sling 3.

[0021] like Figure 2 , Figure 3As shown, the support frame 1 is arranged in a rectangular frame shape and includes a bottom rod 11, a top rod 12, and a pair of side rods 13. The bottom rod 11 and the top rod 12 are arranged horizontally, and the side rods 13 are arranged vertically between the two ends of the bottom rod 11 and the top rod 12.

[0022] like Figure 2 , Figure 3 , Figure 4 As shown, the wire-feeding reel 2 includes a rotating shaft 21 and a guide wheel 22. The rotating shaft 21 is horizontally positioned between a pair of side rods 13, and the guide wheel 22 is rotatably connected to the rotating shaft 21. The sling 3 is mounted on the top rod 12 and is used to fix it to the tower.

[0023] When it is necessary to lay cables, the entire cable laying pulley is suspended and fixed on the tower using sling 3. Then, the guide rope is passed over the cable laying pulley, and the traction board with the cable installed is pulled by the guide rope so that the traction board and the cable can pass over the cable laying pulley to realize the cable laying operation.

[0024] like Figure 3 , Figure 4 , Figure 5 As shown, sliders 23 are provided at both ends of the rotating shaft 21. The sliders 23 are vertically slidably connected to the side rod 13. A spring 24 is provided below the sliders 23 to apply an upward elastic driving force to the sliders 23. A drive mechanism 4 is provided on the side rod 13 to control the shaking of the sliders 23 when the sliders 23 slide to the lowest end.

[0025] like Figure 3 , Figure 4 , Figure 5 As shown, the driving mechanism 4 includes a driving rod 41, a guide rod 42, and a guide block 43. The driving rod 41 is vertically disposed on the lower end face of the slider 23 and rotatably connected to the slider 23. The guide rod 42 is cylindrical and horizontally disposed on the lower end of the driving rod 41. The guide block 43 is vertically disposed on the side rod 13, and the guide block 43 is provided with a ring-shaped guide groove 44 for the guide rod 42 to slide.

[0026] like Figure 3 , Figure 4 , Figure 5 As shown, the guide groove 44 includes a strip groove 45, a zigzag groove 46, and a serrated groove 47. The strip groove 45 is vertically arranged at the upper end of the guide block 43. The zigzag groove 46 and the serrated groove 47 are distributed on both sides of the strip groove 45. The zigzag groove 46 and the serrated groove 47 are arranged in a rhombus shape, and their lower ends are connected to each other, while their upper ends are connected to the lower end of the strip groove 45. A sensor 48 for monitoring the guide rod 42 is provided at the connection position of the zigzag groove 46 and the serrated groove 47.

[0027] When the guide rope drives the traction plate across the wire feeding wheel 2, if the position of the traction plate is relatively accurate, the guide rope can drive the traction plate smoothly through the wire feeding wheel 2. However, the pressure of the guide rope on the wire feeding wheel 2 is insufficient to fully compress the spring 24, meaning it will not be compressed to the lowest point. Therefore, the drive mechanism 4 will not be triggered, and the guide rope can drive the traction plate smoothly through the wire feeding wheel 2.

[0028] When the position of the traction board deviates, the traction board will not pass smoothly through the wire feeding wheel 2. At this time, with the continuous traction of the guide rope, the guide rope will apply pressure to the wire feeding wheel 2, thereby causing the rotating shaft 21 to drive the slider 23 to slide down continuously.

[0029] During the sliding process of slider 23, slider 23 will drive drive rod 41 to move synchronously. At this time, drive rod 41 drives guide rod 42 to move downward along the direction of strip groove 45. Then guide rod 42 enters the broken groove 46 and slides downward along the broken groove 46.

[0030] When the guide rod 42 moves to the connection position of the zigzag groove 46 and the sawtooth groove 47, the sensor 48 will be triggered to work. At this time, the position where the traction force is applied to the guide rope is received and the tension on the guide rope is canceled. At this time, the guide rope will not apply pressure to the pay-off wheel 2. Therefore, under the action of the spring 24, the entire pay-off wheel 2 slides upward and the guide rod 42 enters the sawtooth groove 47.

[0031] When the guide rod 42 moves within the serrated groove 47, it can vibrate under the guidance of the serrated shape, and transmit the vibration force to the position of the wire feeding wheel 2, so that the wire feeding wheel 2 touches the traction guide plate for slight adjustment, realizing the automatic disengagement of the jammed position, so that the traction guide plate can smoothly cross the wire feeding wheel 2, and realize the stable wire feeding.

[0032] This process is then repeated several times, using the pulling and releasing of the guide rope to adjust the vibration of the traction board, thereby completing the smooth crossing of the traction board and achieving stable cable laying.

[0033] like Figure 3 , Figure 4 As shown, the rotating shaft 21 and the slider 23 are detachably connected. The rotating shaft 21 is provided with a plug 25, and the slider 23 is provided with a slot 26 for the plug 25 to be inserted.

[0034] like Figure 3 , Figure 4 As shown, the side rod 13 is horizontally slidably connected to the bottom rod 11 and the top rod 12, and the bottom rod 11 and the top rod 12 are provided with a control mechanism 5 for controlling the horizontal sliding of the side rod 13.

[0035] like Figure 3 , Figure 4As shown, the control mechanism 5 includes a lead screw 51, a sprocket 52, a chain 53, and a handwheel 54. The lead screw 51 is horizontally rotatably connected to the bottom rod 11 and the top rod 12, and is threadedly connected to the side rod 13. The sprocket 52 is located at the end of the lead screw 51, the chain 53 is wound around the outer wall of the sprocket 52, and the handwheel 54 is used to control the rotation of the lead screw 51.

[0036] like Figure 3 , Figure 4 As shown, the ends of the bottom rod 11 and the top rod 12 are vertically positioned on the protective cover 55 located outside the side rod 13. The protective cover 55 is used to cover the chain 53.

[0037] When it is necessary to replace the wire feeding wheel 2 of different lengths according to the wire feeding requirements, the control handwheel 54 drives the bidirectional lead screw 51 to rotate, so that the lead screw 51 drives a pair of side rods 13 to move away from each other, thereby separating the rotating shaft 21 from the slider 23 and realizing the disassembly of the old wire feeding wheel 2.

[0038] Then, the new pay-off reel 2 is placed inside the support frame 1. The handwheel 54 is then controlled to drive the bidirectional lead screw 51 to rotate in the opposite direction. With the cooperation of the sprocket 52 and the chain 53, the lead screw 51 drives a pair of side rods 13 to move closer to each other, and the insert 25 on the rotating shaft 21 is inserted into the slot 26 on the slider 23, thus connecting the rotating shaft 21 and the slider 23 and completing the installation and replacement of the new pay-off reel 2.

[0039] Therefore, by setting a sliding vertical rod and a detachable wire-feeding wheel 2, different lengths of wire-feeding wheels 2 can be replaced according to wire-feeding requirements, meeting different wire-feeding needs and improving the practicality of the entire wire-feeding pulley.

[0040] like Figure 1 As shown, the sling 3 includes a suspension plate 31, a suspension rod 32, and a pair of wire ropes 33. The suspension plate 31 is horizontally mounted on the top rod 12 and is in the same direction as the length of the top rod 12. The suspension rod 32 is longitudinally mounted on the suspension plate 31. The wire ropes 33 are vertically mounted at both ends of the suspension rod 32, and multiple crossbeams 34 are horizontally spaced between the pair of wire ropes 33.

[0041] Therefore, by setting a highly stable sling 3, the cable-laying wheel 2 is stably positioned, preventing it from rotating during operation, thereby achieving stable cable laying.

[0042] The specific embodiments are merely illustrative of the present invention and are not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A wire-laying pulley for the process of stringing wires on iron towers, characterized in that: include: The support frame (1) is arranged in a rectangular frame shape and includes a bottom rod (11), a top rod (12) and a pair of side rods (13). The bottom rod (11) and the top rod (12) are arranged horizontally, and the side rods (13) are arranged vertically between the two ends of the bottom rod (11) and the top rod (12). The line feeding reel (2) includes a rotating shaft (21) and a guide wheel (22). The rotating shaft (21) is horizontally disposed between a pair of side rods (13), and the guide wheel (22) is rotatably connected to the rotating shaft (21). The sling (3) is mounted on the top rod (12) and is used to fix it to the iron tower; Both ends of the rotating shaft (21) are provided with sliders (23), the sliders (23) are vertically slidably connected to the side rod (13), a spring (24) is provided below the sliders (23), and a drive mechanism (4) is provided on the side rod (13) to control the sliders (23) to vibrate when the sliders (23) slide to the lowest end; The driving mechanism (4) includes a driving rod (41), a guide rod (42), and a guide block (43). The driving rod (41) is vertically disposed on the lower end face of the slider (23) and rotatably connected to the slider (23). The guide rod (42) is cylindrical and horizontally disposed on the lower end of the driving rod (41). The guide block (43) is vertically disposed on the side rod (13). The guide block (43) is provided with a ring-shaped guide groove (44) for the guide rod (42) to slide. The guide groove (44) includes a strip groove (45), a zigzag groove (46), and a serrated groove (47). The strip groove (45) is vertically arranged at the upper end of the guide block (43). The zigzag groove (46) and the serrated groove (47) are distributed on both sides of the strip groove (45). The zigzag groove (46) and the serrated groove (47) are arranged in a rhombus shape, and their lower ends are connected to each other, while their upper ends are connected to the lower end of the strip groove (45). A sensor (48) for monitoring the guide rod (42) is provided at the connection position of the zigzag groove (46) and the sawtooth groove (47).

2. The wire-laying pulley for the tower stringing process according to claim 1, characterized in that: The rotating shaft (21) is detachably connected to the slider (23). The rotating shaft (21) is provided with a plug (25), and the slider (23) is provided with a slot (26) for the plug (25) to be inserted.

3. The wire-laying pulley for the tower stringing process according to claim 2, characterized in that: The side rod (13) is horizontally slidably connected to the bottom rod (11) and the top rod (12). The bottom rod (11) and the top rod (12) are provided with a control mechanism (5) for controlling the horizontal sliding of the side rod (13).

4. The wire-laying pulley for the tower stringing process according to claim 3, characterized in that: The control mechanism (5) includes a lead screw (51), a sprocket (52), a chain (53), and a handwheel (54). The lead screw (51) is horizontally rotatably connected to the bottom rod (11) and the top rod (12), and is threadedly connected to the side rod (13). The sprocket (52) is located at the end of the lead screw (51). The chain (53) is wound around the outer wall of the sprocket (52). The handwheel (54) is used to control the rotation of the lead screw (51).

5. A wire-laying pulley for the tower stringing process according to claim 4, characterized in that: The ends of the bottom rod (11) and the top rod (12) are vertically positioned on a protective cover (55) located outside the side rod (13), and the protective cover (55) is used to cover the chain (53).

6. The wire-laying pulley for the tower stringing process according to claim 1, characterized in that: The sling (3) includes a sling (31), a rod (32) and a pair of wire ropes (33). The sling (31) is arranged horizontally on the top rod (12) and is in the same direction as the length of the top rod (12). The rod (32) is arranged longitudinally on the sling (31). The wire ropes (33) are arranged vertically at both ends of the rod (32).

7. A wire-laying pulley for the tower stringing process according to claim 6, characterized in that: Multiple crossbeams (34) are provided transversely and at intervals between a pair of wire ropes (33).

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