A cable rack for cable laying

Abstract

The utility model discloses a cable erects with cable rack, including wire reel support frame, the outer wall sliding joint of wire reel support frame has jacking assembly, the jacking assembly surface is equipped with fastening bolt, wire reel support frame symmetry sets up, be equipped with wire reel wear axle between wire reel support frame, the utility model inside inflation tight mechanism cooperates reverse lead screw with 120 degree isokite jacking arm, drives bracing arc plate synchronous opening and closing, the self -adaptation different diameter wire reel central hole, need not repeatedly replace axle rod, and the adjusting seat is along the sliding bar sliding and is locked through hand screw bolt, can quick positioning adaptation height, simple operation need not complex tool, promote adaptation flexibility, simultaneously, and axle seat ball structure will slide friction convert for rolling friction, reduce wire reel rotation resistance, avoid cable abrasion, in combination hydraulic jacking assembly accurate control wire reel ground clearance, prevent ground friction interference, still reserve sufficient operation space, and each part is mutually coordinated, guarantees the smooth wire laying.

Description

Technical Field

[0001] This utility model mainly relates to the field of cable laying technology, specifically a cable rack for cable laying. Background Technology

[0002] Cable laying refers to the systematic process of transferring cables from production and storage to actual application scenarios and laying and fixing them according to design requirements. In this process, the cable reel must first be stably supported off the ground, and then the reel is rotated smoothly by pulling the cable in an orderly manner to ensure that the cable is smoothly unrolled and installed along the predetermined path. It is crucial to avoid reel swaying and cable dragging and wear, while also ensuring work efficiency and operational safety. This is a key construction step connecting cable production and actual application in the construction of infrastructure such as power and communications.

[0003] Cable laying racks are specialized construction auxiliary equipment designed to meet the core requirements of stable cable reel placement and smooth cable laying during cable laying operations. Most existing cable laying racks use fixed-size shafts to fit into the central hole of the cable reel. If there is a gap between the two, it can cause problems such as reel swaying and cable dragging trajectory deviation during laying, and also increase the resistance to reel rotation. Some racks require repeated disassembly and replacement of shafts of the corresponding size, which is not only cumbersome and time-consuming, but also prone to installation errors due to frequent disassembly and assembly, resulting in uneven gaps between the reel and the shaft. Utility Model Content

[0004] This utility model addresses the problem of overly simplistic solutions in existing technologies by providing a cable rack for cable laying. This rack solves the problems mentioned in the background section, such as the use of fixed-specification shafts that easily create gaps with the central hole of the cable reel, leading to reel swaying, trajectory deviation, and increased rotational resistance during cable laying; or the need for repeated disassembly and replacement of suitable through-shafts, which is not only cumbersome and time-consuming but also prone to uneven gaps due to errors in disassembly and assembly.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A cable rack for cable laying includes a reel support frame. A lifting assembly is slidably connected to the outer wall of the reel support frame. Fastening bolts are provided on the surface of the lifting assembly. The reel support frames are symmetrically arranged, and a reel through shaft is provided between the reel support frames. The two ends of the reel through shaft are respectively inserted and connected to the corresponding lifting assembly. A worm gear is rotatably connected to one end of the reel through shaft. A worm wheel is meshed below the worm gear. An internal tightening mechanism is provided inside the reel through shaft.

[0006] Furthermore, the lifting assembly includes an adjusting seat, a hydraulic cylinder, and a shaft seat. The bottom of the hydraulic cylinder is fixedly connected to the top of the adjusting seat, and the power output end of the hydraulic cylinder is fixedly connected to the bottom of the shaft seat.

[0007] Furthermore, a threaded through hole for use with a fastening bolt is provided on one side of the outer wall of the adjusting seat, and a sliding rod for the adjusting seat to slide is provided on the outer wall of the spool support frame. Multiple through holes are provided at equal intervals along the length of the sliding rod, and the specifications of the through holes are the same as those of the threaded through holes on the adjusting seat.

[0008] Furthermore, the center of the bearing seat has a through slot for inserting the wire reel through the shaft, and the bearing seat has multiple ball bearing structures rotatably connected to the inner wall of the corresponding slot.

[0009] Furthermore, the internal tightening mechanisms are spaced apart and located in the middle region inside the reel shaft. Each internal tightening mechanism includes a reverse lead screw, a drive nut, a lifting arm, and a tensioning arc plate. The reverse lead screws are coaxially arranged with the worm gear, and the drive nuts are threaded to the opposite surfaces of the outer walls of the reverse lead screws, forming a helical transmission structure.

[0010] Furthermore, the lifting arms are distributed at 120° equiangular angles along the outer periphery of the drive nut, and one end of each lifting arm is rotatably connected to the outside of the corresponding side drive nut via a pin. The other ends of each lifting arm located at the same horizontal position are rotatably connected via a support arc plate.

[0011] Furthermore, a slot is provided on the outer wall of the spool through the shaft at a position corresponding to the tensioning arc plate, and the position of the slot is adapted to the distribution position of the tensioning arc plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This cable rack, through the coordinated structure of an internal expansion mechanism and an adjusting seat, achieves flexible adaptation to cable reels of different specifications. The internal expansion mechanism, with the help of 120° equidistant lifting arms and reverse screw transmission, drives the tensioning arc plate to open and close synchronously, which can adapt to the central shaft hole of reels of different diameters, completely eliminating the tedious operation of repeatedly changing fixed diameter shafts in traditional equipment. The adjusting seat slides along the slide rod and is locked by hand-tightening bolts, which can quickly locate the matching hole according to the height of the reel shaft center. No complicated tools are required throughout the process; only simple manual operation is needed to complete the height adjustment and fixing, improving the equipment's adaptability to different reels of different specifications and different working environments, while reducing the complexity of operation.

[0013] 2. The ball bearing structure on the inner wall of the shaft seat groove converts the sliding friction between the reel and the shaft seat into rolling friction, effectively reducing the resistance of the transmission cable reel when rotating and avoiding cable wear caused by rotation jamming or excessive friction; the lifting component driven by the hydraulic cylinder can precisely control the height of the reel off the ground, which not only prevents the reel from rubbing against the ground and affecting the wire laying, but also leaves sufficient space for operation.

[0014] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the lifting component structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the thread reel through the shaft of this utility model; Figure 4 This is a schematic diagram of the internal expansion and tightening mechanism of this utility model; Figure 5 This is a schematic diagram of the cable reel assembly structure of this utility model.

[0016] Numbering on the map: 1. Wire reel support frame; 2. Lifting assembly; 201. Adjusting seat; 202. Hydraulic cylinder; 203. Shaft seat; 3. Wire reel shaft; 4. Worm gear; 5. Worm wheel; 6. Internal tensioning mechanism; 601. Reverse screw; 602. Drive nut; 603. Lifting arm; 604. Tensioning arc plate. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Please refer to the appendix carefully. Figure 1-5 A cable rack for cable laying includes a reel support frame 1, a lifting component 2 slidably connected to the outer wall of the reel support frame 1, fastening bolts on the surface of the lifting component 2, the reel support frames 1 being symmetrically arranged, a reel through shaft 3 being provided between the reel support frames 1, the two ends of the reel through shaft 3 being respectively inserted and connected to the corresponding lifting component 2, a worm gear 4 being rotatably connected to one end inside the reel through shaft 3, a worm wheel 5 being meshed below the worm gear 4, and an internal tightening mechanism 6 being provided inside the reel through shaft 3.

[0020] In this embodiment, as Figure 2As shown, the lifting assembly 2 includes an adjusting seat 201, a hydraulic cylinder 202, and a shaft seat 203. The bottom of the hydraulic cylinder 202 is fixedly connected to the top of the adjusting seat 201, and the power output end of the hydraulic cylinder 202 is fixedly connected to the bottom of the shaft seat 203.

[0021] Through the above structure, the hydraulic cylinder 202 provides lifting force, and the drive shaft seat 203 drives the wire reel through shaft 3 and the cable reel to rise and fall smoothly, efficiently achieving the support of the cable reel off the ground. It can accurately control the height of the wire reel off the ground according to the operation requirements, which not only avoids the friction between the wire reel and the ground affecting the wire laying, but also leaves enough space for the wire laying operation, improving the convenience of wire laying and the efficiency of operation.

[0022] In this embodiment, as Figure 1 and Figure 2 As shown, a threaded through hole for use with a fastening bolt is provided on one side of the outer wall of the adjusting seat 201. The outer wall of the coil support frame 1 is provided with a sliding rod for the adjusting seat 201 to slide. Multiple through holes are provided at equal intervals along the length of the sliding rod. The specifications of the through holes are the same as those of the threaded through holes on the adjusting seat 201.

[0023] Through the above structure, the slide bar provides a stable sliding guide for the adjusting seat 201, ensuring that the adjusting seat 201 moves smoothly in the preset direction. The through holes that are evenly distributed and of the same specification allow the adjusting seat 201 to quickly position to the appropriate hole according to the height requirements of the cable reel, and lock in place with the threaded through holes and fastening bolts.

[0024] In this embodiment, as Figure 2 As shown, the center of the bearing seat 203 has a through slot for inserting the wire spool through the shaft 3, and the bearing seat 203 has multiple ball bearing structures rotatably connected to the inner wall of the corresponding slot.

[0025] Through the above structure, the ball bearing structure on the inner wall of the slot can convert the sliding friction between the reel shaft 3 and the bearing seat 203 into rolling friction, reduce the frictional resistance when the cable reel rotates, make the wire feeding process smoother, and at the same time reduce the wear between the two and extend the service life of the components.

[0026] In this embodiment, as Figure 3 and Figure 4 As shown, the internal tensioning mechanisms 6 are spaced apart and located in the middle area inside the reel shaft 3. The internal tensioning mechanism 6 includes a reverse screw 601, a drive nut 602, a lifting arm 603 and a tensioning arc plate 604. The reverse screws 601 are coaxially arranged with the worm gear 5, and the drive nuts 602 are threaded to the opposite surfaces of the outer walls of the reverse screws 601, forming a helical transmission structure.

[0027] With the above structure, the internal tightening mechanism 6 is spaced apart in the middle of the cable reel shaft 3, which can form a symmetrical and balanced tightening force on the central shaft hole of the cable reel, avoiding uneven local force. The structure of the reverse screw 601 and the worm gear 5 being coaxial can drive the reverse screw 601 to rotate synchronously through the worm gear 5 and worm 4, improving the convenience of operation.

[0028] In this embodiment, as Figure 3 and Figure 4 As shown, the lifting arms 603 are distributed at 120° angles along the outer periphery of the drive nut 602. One end of each lifting arm 603 is rotatably connected to the outside of the corresponding drive nut 602 via a pin. The other ends of each lifting arm 603 located at the same horizontal position are rotatably connected to each other via a support arc plate 604.

[0029] With the above structure, the lifting arms 603, which are evenly distributed at 120° angles, can form a balanced three-point support. They are connected to the drive nut 602 through the pin shaft. The movement of the drive nut 602 can ensure that each tensioning arc plate 604 opens and closes synchronously and is subjected to uniform force. This can stably adapt to the shaft holes of different diameter spools, and achieve a tight fit between the shaft hole and the tensioning arc plate 604. It effectively avoids the problems of spool shaking and sudden increase in wire feeding resistance caused by the gap due to size mismatch of traditional fixed diameter shafts, as well as the cumbersome operation caused by the need to repeatedly replace shafts of different specifications.

[0030] In this embodiment, as Figure 3 As shown, a slot is provided on the outer wall of the spool shaft 3 at a position corresponding to the tensioning arc plate 604, and the position of the slot is adapted to the distribution position of the tensioning arc plate 604.

[0031] With the above structure, the outer diameter of the spool shaft 3 is 80mm and the wall thickness is 12mm. The groove on its outside provides reserved space for the opening and closing action of the tensioning arc plate 604, ensuring that when it shrinks, it can fit against the outer wall of the spool shaft 3 to smoothly pass into the spool central shaft hole, and when it opens, it can expand outward without obstruction and fit tightly against the inner wall of central shaft holes of different diameters.

[0032] The specific operating procedure of this utility is as follows: When using this cable laying cable rack, first move the cable reel support frame 1 to both ends of the cable reel and position it.

[0033] According to the axial height of the cable reel, adjust the position of the lifting component 2 on the cable reel support frame 1. Loosen the stainless steel butterfly hand-tightening bolt between the adjusting seat 201 and the slide rod on the outer wall of the cable reel support frame 1, so that the adjusting seat 201 slides along the slide rod to the target height until the threaded through hole on the adjusting seat 201 is aligned with the through hole at the corresponding position on the slide rod surface. Then tighten the butterfly bolt to fix it.

[0034] Next, the cable reel shaft 3 is installed. The end of the cable reel shaft 3 (made of steel, 1800mm long, suitable for cable reels with diameters of 800-1200mm) without a handle is inserted into the slot of the shaft seat 203 of one of the cable reel support frames 1, and then passes through the through hole at the center of the cable reel until the other end of the cable reel shaft 3 passes into the slot of the shaft seat 203 of the other cable reel support frame 1. The cable reel is then mounted between the two cable reel support frames 1 by the cooperation of the shaft seats 203 on the two cable reel support frames 1.

[0035] After the installation is completed, the operator rotates the worm gear 4 through the handle on the outside of the cable reel shaft 3 according to the diameter of the cable reel shaft hole. The worm gear 4 drives the meshing worm wheel 5 to rotate. Since the worm wheel 5 and the reverse screw 601 are coaxially set, the reverse screw 601 rotates synchronously with the worm wheel 5, causing the drive nut 602, which is threaded to the opposite surface of the outer wall of the reverse screw 601, to move relatively closer or further away.

[0036] When the drive nut 602 moves relative to the nut, the lifting arm 603, which is distributed at a 120° angle along its outer periphery, moves accordingly. The end of the lifting arm 603 connected to the drive nut 602 rotates through the pin, causing the lifting arm 603 to gradually lift upward from its original near-horizontal angle. Finally, the tensioning arc plate 604 between the lifting arms 603 located at the same horizontal position can move synchronously.

[0037] The tensioning arc plate 604 rotates along its rotational connection point with the lifting arm 603, gradually opening outward from the corresponding slot on the outer wall of the cable reel shaft 3 until it tightly fits the inner wall of the cable reel shaft hole. Through this adaptive adjustment, the gap between shaft holes of different diameters and the cable reel shaft 3 can be filled. Compared with the existing fixed diameter shaft structure, it can avoid problems such as unstable cable reel fixation, shaking, or shaft hole wear caused by mismatched shaft hole diameters, and achieve reliable fixation of cable reels of different specifications.

[0038] After adjusting the cable reel shaft 3, the hydraulic system is activated to extend the power output end of the hydraulic cylinder 202 according to the working height requirements of the cable reel, pushing the shaft seat 203 upward. Since the cable reel is sleeved on the outside of the cable reel shaft 3 between the shaft seats 203, it drives the cable reel to rise synchronously until the required working height is reached, so that the cable reel is off the ground, which facilitates subsequent cable laying operations.

[0039] At this time, during the process of pulling the cable, the cable reel can rotate freely around the reel shaft 3. The ball bearing structure set on the inner wall of the shaft seat 203 can effectively reduce the frictional resistance between the reel shaft 3 and the shaft seat 203, making the rotation of the cable reel smoother and more stable, reducing the resistance during the cable dragging process, avoiding cable damage or poor cable laying due to excessive friction, and improving the overall work efficiency and safety.

[0040] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A cable rack for cable laying, comprising a cable reel support frame (1), characterized in that: The outer wall of the spool support frame (1) is slidably connected to a lifting component (2). The surface of the lifting component (2) is provided with fastening bolts. The spool support frames (1) are symmetrically arranged. A spool through shaft (3) is provided between the spool support frames (1). The two ends of the spool through shaft (3) are respectively inserted and connected to the corresponding lifting component (2). A worm gear (4) is rotatably connected to one end of the spool through shaft (3). A worm wheel (5) is meshed below the worm gear (4). An internal tightening mechanism (6) is provided inside the spool through shaft (3).

2. The cable rack for cable laying according to claim 1, characterized in that: The lifting assembly (2) includes an adjusting seat (201), a hydraulic cylinder (202) and a bearing seat (203). The bottom of the hydraulic cylinder (202) is fixedly connected to the top of the adjusting seat (201), and the power output end of the hydraulic cylinder (202) is fixedly connected to the bottom of the bearing seat (203).

3. A cable rack for cable laying according to claim 2, characterized in that: The outer wall of the adjusting seat (201) has a threaded through hole for use with fastening bolts. The outer wall of the coil support frame (1) is provided with a sliding rod for the adjusting seat (201) to slide. The surface of the sliding rod has multiple through holes at equal intervals along its length. The through holes are consistent with the specifications of the threaded through holes on the adjusting seat (201).

4. A cable rack for cable laying according to claim 2, characterized in that: The center of the bearing seat (203) has a through slot for inserting the wire reel through shaft (3), and the bearing seat (203) has multiple ball bearing structures rotatably connected to the inner wall of the corresponding slot.

5. A cable rack for cable laying according to claim 1, characterized in that: The internal tightening mechanisms (6) are spaced apart and located in the middle area inside the reel shaft (3). The internal tightening mechanism (6) includes a reverse screw (601), a drive nut (602), a lifting arm (603), and a tensioning arc plate (604). The reverse screws (601) are coaxially arranged with the worm gear (5), and the drive nuts (602) are threaded to the opposite surfaces of the outer walls of the reverse screws (601) respectively, forming a helical transmission structure.

6. A cable rack for cable laying according to claim 5, characterized in that: The lifting arms (603) are distributed at 120° angles along the outer periphery of the drive nut (602). One end of each lifting arm (603) is rotatably connected to the outside of the corresponding side drive nut (602) by a pin. The other ends of each lifting arm (603) located at the same horizontal position are rotatably connected by a support arc plate (604).

7. A cable rack for cable laying according to claim 5, characterized in that: On the outer wall of the spool shaft (3), a slot is provided at a position corresponding to the tensioning arc plate (604), and the position of the slot is adapted to the distribution position of the tensioning arc plate (604).

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