A pay-off device for cable laying
By introducing a stop servo motor-driven active braking structure for the rhomboid metal block and axial movement of the threaded rod into the cable laying device, the problem of poor adaptability of the cable laying device is solved, achieving fast and accurate cable stopping and applicability to multiple cable specifications, thus improving the stability and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGCHENG ENERGY GRP CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-07
AI Technical Summary
Existing cable laying equipment has a fixed structure and dimensions, making it difficult to adapt to cable rolls of different diameters and widths. This results in poor versatility and issues such as delayed stopping and high impact force, which affect laying quality and safety.
An active braking structure is adopted, which uses a servo motor to drive a diamond-shaped metal block to squeeze an arc-shaped metal strip. Combined with the axial movement of a threaded rod, it can quickly and accurately stop the cable roll. The combination of wedge blocks and nuts can be used to fix cable rolls of different widths.
It improves the stability and safety of cable laying equipment, enhances its adaptability to various cable specifications, and improves the applicability and construction efficiency of the equipment.
Smart Images

Figure CN224467208U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable laying equipment technology, and in particular to a cable laying device for cable laying. Background Technology
[0002] Cable laying and releasing devices are mechanical equipment specifically designed for cable laying in fields such as power and communications. They support cable reels and enable the orderly release of cables. Their core function is to support the weight of the cable reel through a rotating mechanism, while a braking and speed control system regulates the laying speed and tension to prevent cable dragging and damage. The device typically includes components such as a support frame, drive assembly, and tension controller. It can be adapted to different specifications of cable reels and is widely used in overhead, underground, and pipeline laying scenarios, improving construction efficiency and ensuring the quality and safety of cable laying.
[0003] However, existing devices are difficult to adapt to cable rolls of different diameters and widths due to their fixed structural dimensions. They require the replacement of special accessories or adjustment of complex parameters, resulting in poor versatility. Furthermore, existing devices often rely on manual braking (such as manually pressing the friction pads) or mechanical hard braking, which has problems such as delayed stopping and large impact force. This can easily lead to cable slack, dragging, or excessive tension, affecting the laying quality (such as cable twisting and length error) and also posing significant safety hazards.
[0004] Therefore, we propose a cable laying device to solve the above problems. Utility Model Content
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A cable laying device includes a fixed bracket, two guide grooves on the inner side of the fixed bracket, a displacement bracket slidably mounted on the inner side of the two guide grooves, a rotating base fixedly mounted on the side of the displacement bracket near the fixed bracket, and a stop plate fixedly sleeved on the outer side of the rotating base.
[0007] Specifically, a threaded sleeve is fixedly inserted through one side of the fixed bracket, and a drive shaft is rotatably mounted on the inner side of the threaded sleeve.
[0008] Specifically, the threaded sleeve has a motor slot inside, and a telescopic servo motor is fixedly installed inside the motor slot. The output shaft of the telescopic servo motor is fixedly connected to the transmission shaft to facilitate the rotation of the transmission shaft by the telescopic servo motor.
[0009] Specifically, a threaded rod is rotatably mounted on one side of the rotating base, and a transmission port is provided at one end of the threaded rod. The threaded rod is slidably sleeved on the transmission shaft, so that the threaded rod can be rotated by the transmission shaft.
[0010] Specifically, the same cable roll is rotatably mounted on the threaded sleeve and the rotating base, and a stop groove is provided on the side of the cable roll near the rotating base.
[0011] Specifically, nuts are fixedly inserted through one side of the inner wall of each of the two guide grooves, and wedge blocks can be detachably installed on the inner side of each of the two guide grooves. Mounting holes are opened on one side of each of the two wedge blocks, and bolts are slidably installed on the inner side of each of the two mounting holes. The two bolts are threadedly connected to the corresponding nuts, which facilitates the fixed installation of the wedge blocks by bolts and nuts.
[0012] Specifically, a fixed post is fixedly installed on one side of the stop disc, and two arc-shaped metal strips are rotatably sleeved on the fixed post. Traction springs are fixedly installed on the sides of the two arc-shaped metal strips that are close to each other. The other ends of the two traction springs are fixedly connected to the corresponding arc-shaped metal strips, so as to facilitate the reset of the two arc-shaped metal strips.
[0013] Specifically, a rhomboid metal block is rotatably mounted on one side of the stop disk, and the rhomboid metal block abuts against two arc-shaped metal strips. A drive housing is fixedly mounted on the other side of the stop disk, and a stop servo motor is fixedly mounted on the inner side of the drive housing. The output shaft of the stop servo motor is fixedly connected to the rhomboid metal block, and the rhomboid metal block can be driven to rotate by the stop servo motor.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a stop servo motor to drive the rhomboid metal block to squeeze the two arc-shaped metal strips, the active braking structure can quickly trigger the friction limit between the arc-shaped metal strips and the cable roll stop groove, with fast response speed and high stopping accuracy, improving the stability and safety of the equipment. Furthermore, by driving the threaded rod to move axially, it can adapt to the clamping requirements of cable rolls of different widths, improve the equipment's adaptability to various cable specifications, and enhance the applicability of the equipment. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of a cable laying device proposed in this utility model.
[0016] Figure 2 This is a three-dimensional structural disassembly diagram of a cable laying device proposed in this utility model.
[0017] Figure 3 This is a three-dimensional structural breakdown diagram of the wedge block, bolt, and nut of a cable laying device proposed in this utility model.
[0018] Figure 4 This is a three-dimensional structural breakdown diagram of a cable laying device for cable laying, comprising a threaded sleeve, a telescopic servo motor, a drive shaft, a threaded rod, and a rotating base.
[0019] Figure 5 This utility model presents a three-dimensional structural diagram of a cable laying device for cable laying, comprising a drive housing, a stop disc, a stop servo motor, a rhomboid metal block, a fixing column, a traction spring, and an arc-shaped metal strip.
[0020] In the diagram: 1. Fixed bracket; 2. Displacement bracket; 3. Cable reel; 4. Wedge block; 5. Nut; 6. Bolt; 7. Threaded sleeve; 8. Telescopic servo motor; 9. Drive shaft; 10. Threaded rod; 11. Rotating base; 12. Drive housing; 13. Stop disk; 14. Stop servo motor; 15. Rhomboid metal block; 16. Fixed column; 17. Traction spring; 18. Arc-shaped metal strip. Detailed Implementation
[0021] Reference Figure 1-5 A cable laying device includes a fixed bracket 1, two guide grooves are opened on the inner side of the fixed bracket 1, and the same displacement bracket 2 is slidably installed on the inner side of the two guide grooves. A rotating base 11 is fixedly installed on the side of the displacement bracket 2 close to the fixed bracket 1; a stop plate 13 is fixedly sleeved on the outer side of the rotating base 11.
[0022] Specifically, a threaded sleeve 7 is fixedly inserted through one side of the fixed bracket 1, and a drive shaft 9 is rotatably installed on the inner side of the threaded sleeve 7.
[0023] Specifically, the threaded sleeve 7 has a motor slot inside, and a telescopic servo motor 8 is fixedly installed inside the motor slot. The output shaft of the telescopic servo motor 8 is fixedly connected to the transmission shaft 9 to facilitate the rotation of the transmission shaft 9 by the telescopic servo motor 8.
[0024] Specifically, a threaded rod 10 is rotatably mounted on one side of the rotating base 11. One end of the threaded rod 10 has a transmission port. The threaded rod 10 is slidably sleeved on the transmission shaft 9, so that the threaded rod 10 can be rotated by the transmission shaft 9.
[0025] Specifically, the same cable roll 3 is rotatably mounted on the threaded sleeve 7 and the rotating base 11, and a stop groove is provided on the side of the cable roll 3 near the rotating base 11.
[0026] Specifically, nuts 5 are fixedly inserted through one inner wall of each of the two guide grooves, and wedge blocks 4 can be detachably installed on the inner side of each of the two guide grooves. Mounting holes are opened on one side of each of the two wedge blocks 4, and bolts 6 are slidably installed on the inner side of each of the two mounting holes. The two bolts 6 are threadedly connected to the corresponding nuts 5, so as to facilitate the fixed installation of the wedge blocks 4 by means of bolts 6 and nuts 5.
[0027] Specifically, a fixed post 16 is fixedly installed on one side of the stop plate 13. Two arc-shaped metal strips 18 are rotatably sleeved on the fixed post 16. Traction springs 17 are fixedly installed on the side of the two arc-shaped metal strips 18 that are close to each other. The other ends of the two traction springs 17 are fixedly connected to the corresponding arc-shaped metal strips 18, so as to facilitate the reset of the two arc-shaped metal strips 18.
[0028] Specifically, a rhomboid metal block 15 is rotatably mounted on one side of the stop disk 13, and the rhomboid metal block 15 abuts against two arc-shaped metal strips 18. A drive housing 12 is fixedly mounted on the other side of the stop disk 13, and a stop servo motor 14 is fixedly mounted on the inner side of the drive housing 12. The output shaft of the stop servo motor 14 is fixedly connected to the rhomboid metal block 15, and the rhomboid metal block 15 can be driven to rotate by the stop servo motor 14.
[0029] Working principle: When installing cable reel 3 on the cable laying bracket, first, the fixed bracket 1 is laid down, then the cable reel 3 is placed on the threaded sleeve 7. Next, the displacement bracket 2 is assembled with the fixed bracket 1, aligning the threaded rod 10 on the displacement bracket 2 with the threaded sleeve 7 on the fixed bracket 1, so that the drive shaft 9 is inserted into the drive port of the threaded rod 10. Then, the telescopic servo motor 8 is started, driving the drive shaft 9 to rotate, which in turn drives the threaded rod 10 to rotate. The threaded rod 10 is threadedly connected to the threaded sleeve 7, preventing the threaded sleeve 7 from rotating. Therefore, when the threaded rod 10 rotates, it moves axially along the internal thread of the threaded sleeve 7. This movement of the threaded rod 10 causes the displacement bracket 2 and the stop plate 13 to move closer to the fixed bracket 1. When the stop plate 13 contacts the cable reel 3, the telescopic servo motor 8 is turned off, completing the installation of the cable reel 3. At this point, the operation... Personnel straighten the fixed bracket 1 along with the displacement bracket 2, and then fix the two wedge blocks 4 to the fixed bracket 1 with the corresponding bolts 6 and nuts 5 to complete the installation. When it is necessary for the cable roll 3 to stop rotating, the personnel start the stop servo motor 14. The stop servo motor 14 drives the rhomboid metal block 15 to rotate, which squeezes the two arc-shaped metal strips 18. The two arc-shaped metal strips 18 are squeezed and rotate around the same fixed column 16 as the center, and come into contact with the annular inner wall of the stop groove opened on one side of the cable roll 3. The friction limit makes the cable roll 3 stop rotating. When the cable roll 3 stops rotating, the stop servo motor 14 controls the rhomboid metal block 15 to reset. At this time, the two arc-shaped metal strips 18 lose the squeezing force, and the two traction springs 17 assist the two arc-shaped metal strips 18 to move closer to each other, complete the reset, and release the friction limit on the cable roll 3.
[0030] The technological advancements of this invention compared to existing technologies are as follows: By using a stop servo motor 14 to drive a rhomboid metal block 15 to compress two arc-shaped metal strips 18, the active braking structure can quickly trigger the friction limit between the arc-shaped metal strips 18 and the stop groove of the cable roll 3. This results in a fast response speed, high stopping accuracy, and improved stability and safety of the equipment. Furthermore, by driving the threaded rod 10 to move axially, it can adapt to the clamping requirements of cable rolls 3 of different widths, enhancing the equipment's adaptability to various cable specifications and improving its applicability.
Claims
1. A cable laying device for cable installation, characterized in that, Includes a fixed bracket (1), the fixed bracket (1) has two guide grooves on its inner side, and the same displacement bracket (2) is slidably installed on the inner side of the two guide grooves. The displacement bracket (2) has a rotating base (11) fixedly installed on the side of the fixed bracket (1) near the fixed bracket (1). A stop disc (13) is fixedly sleeved on the outer side of the rotating base (11).
2. The cable laying device according to claim 1, characterized in that, A threaded sleeve (7) is fixedly inserted through one side of the fixed bracket (1), and a drive shaft (9) is rotatably installed on the inner side of the threaded sleeve (7).
3. The cable laying device according to claim 2, characterized in that, The threaded sleeve (7) has a motor slot inside, and a telescopic servo motor (8) is fixedly installed on the inner side of the motor slot. The output shaft of the telescopic servo motor (8) is fixedly connected to the transmission shaft (9).
4. A cable laying device according to claim 3, characterized in that, A threaded rod (10) is rotatably mounted on one side of the rotating base (11). One end of the threaded rod (10) has a transmission port, and the threaded rod (10) is slidably sleeved on the transmission shaft (9).
5. A cable laying device according to claim 4, characterized in that, The same cable roll (3) is rotatably sleeved on the threaded sleeve (7) and the rotating base (11), and a stop groove is provided on the side of the cable roll (3) near the rotating base (11).
6. A cable laying device according to claim 5, characterized in that, Nuts (5) are fixedly inserted on one side of the inner wall of each of the two guide grooves. Wedge blocks (4) can be detachably installed on the inner side of each of the two guide grooves. Mounting holes are opened on one side of each of the two wedge blocks (4). Bolts (6) are slidably installed on the inner side of each of the two mounting holes. The two bolts (6) are threadedly connected to the corresponding nuts (5).
7. A cable laying device according to claim 6, characterized in that, A fixed post (16) is fixedly installed on one side of the stop disk (13). Two arc-shaped metal strips (18) are rotatably sleeved on the fixed post (16). Traction springs (17) are fixedly installed on the side of the two arc-shaped metal strips (18) that are close to each other. The other ends of the two traction springs (17) are fixedly connected to the corresponding arc-shaped metal strips (18).
8. A cable laying device according to claim 7, characterized in that, A rhomboid metal block (15) is rotatably mounted on one side of the stop disk (13), and the rhomboid metal block (15) abuts against two arc-shaped metal strips (18). A drive housing (12) is fixedly mounted on the other side of the stop disk (13), and a stop servo motor (14) is fixedly mounted on the inner side of the drive housing (12). The output shaft of the stop servo motor (14) is fixedly connected to the rhomboid metal block (15).