A cable pay-off stand

Abstract

The utility model provides a kind of cable pay-off rack, it is related to cable pay-off field, the scheme used is: including two support frames of relative arrangement, support shaft is arranged between the support frame, the end portion coaxial of support shaft is provided with brake disc, brake assembly is provided on the support frame, the brake assembly includes brake band, one end of brake band is set on the support frame, and the other end is connected with the upper end of brake lever after encircling brake disc outer circle, the lower end of brake lever is connected with brake handle, and the end portion of brake handle is rotatably arranged on the support frame, the corresponding position of support frame is provided with clamping groove, and the clamping groove can be connected with brake handle. The utility model can realize quick brake, and better avoid cable interference release.

Description

Technical Field

[0001] This utility model relates to the field of cable laying, and in particular to a cable laying frame. Background Technology

[0002] Since high-voltage cables are generally stored and transported in reels, they are characterized by their large size and heavy weight. Therefore, they usually need to be used in conjunction with cable laying frames to complete the auxiliary laying. Traditional cable laying frames do not have a braking mechanism. Due to the large weight and inertia of the high-voltage cable reels, they rotate and cannot be stopped immediately, resulting in interference laying of the high-voltage cables.

[0003] In the prior art, Chinese utility model patent with authorization announcement number CN 220055795 U discloses a high-voltage cable laying frame with a braking mechanism, including a first laying frame, a second laying frame, and a cable reel shaft. One end of the cable reel shaft is set on the first rotating mechanism, and the other end is set on the second rotating mechanism. A braking structure is provided, which includes a brake lever, a brake lever handle, a brake lever nut, and a brake block. The cable reel shaft includes a central shaft, and a brake disc is fixedly mounted on one end of the central shaft by a brake disc fixing bolt. When parking or in an emergency requiring rapid stopping, the brake block is driven forward to press against the friction brake disc by turning the fixed brake lever handle, thus achieving parking.

[0004] The above method can achieve braking, but the threaded brake lever needs to be rotated during braking. Generally, the cable reel shaft will have axial movement during use. To avoid friction during normal use, the brake pads are usually adjusted to a position far away from the brake disc, so that there will be no friction and it will not affect normal use. However, when braking is needed, the brake lever needs to be rotated several times to achieve braking. The braking process takes a long time. During this time, the cable has been released too much, and it cannot better avoid interference release of the cable. Utility Model Content

[0005] To address the technical problem of long braking time in the existing cable laying frame, this invention provides a cable laying frame that can achieve rapid braking and better avoid interference release of the cable.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a cable laying frame includes two support frames arranged opposite each other, a support shaft is provided between the support frames, a brake disc is coaxially provided at the end of the support shaft, the brake disc can be detachably connected to the cable reel, a brake assembly is provided on the support frame, the brake assembly includes a brake band, one end of the brake band is provided on the support frame, the other end is wrapped around the outer circle of the brake disc and connected to the upper end of the brake lever, the lower end of the brake lever is connected to the brake handle, the end of the brake handle is rotatably provided on the support frame, and a slot is provided at a corresponding position on the support frame, the slot can engage with the brake handle.

[0007] This invention utilizes a brake lever to pull down the brake band and press the brake disc, generating friction at the moment the brake lever is pressed down, thus achieving rapid braking and greatly reducing interference release of the cable.

[0008] Furthermore, a receiving groove is provided on the circumferential surface of the brake disc, and the brake band is disposed in the receiving groove.

[0009] This invention prevents brake band deviation and brake failure by setting a receiving groove.

[0010] Furthermore, the outer circumference of the brake lever is provided with threads, the upper end of the brake lever is rotatably connected to the brake band through a bearing, and the lower end of the brake lever is threadedly connected to the brake handle.

[0011] This invention enables adjustment of the brake band tension by setting threads on the brake lever.

[0012] Furthermore, the mounting end of the brake lever is rotatably connected to the support frame via a pin, and the mounting end is connected to the lower part of the brake lever. Along the cable outgoing direction, the connection position between the brake lever and the brake lever is located at the front of the pin.

[0013] Furthermore, the support frame includes a chassis support, on which a support column one and a support column two are vertically arranged. The tops of the support column one and the support column two are connected by a top beam. Two support diagonal rods are arranged between the end of the top beam and the chassis support, and the two support diagonal rods are arranged in a V-shape.

[0014] Furthermore, both the first and second support columns are provided with multiple pin holes along their height direction. A crossbeam is provided between the first and second support columns. A sleeve is provided at each end of the first and second crossbeams. The first sleeve is axially movably fitted onto the first support column, and the second sleeve is axially movably fitted onto the second support column. Both the first and second sleeves are provided with positioning holes along the radial direction. A positioning pin passes through the positioning hole and one of the pin holes. The first crossbeam supports the support shaft, and the second crossbeam is provided with a groove for accommodating the jack.

[0015] This utility model, through the cooperation of jacks, crossbeam one, and crossbeam two, can change the support position according to the diameter of the cable reel, thereby expanding the applicability of this cable laying frame.

[0016] Furthermore, one end of the brake band is connected to the sleeve, and the pin is located at the lower part of the crossbeam and is detachably connected to a pin hole on the support column.

[0017] Furthermore, an elliptical limiting ring is provided on the second support column. The limiting ring is vertically positioned, and the brake handle can extend out from the limiting ring. At least three locking blocks are provided on the inner wall of the limiting ring from top to bottom. The brake handle can abut against the corresponding locking block. A locking groove is provided between two adjacent locking blocks, and the uppermost locking groove is lower than the pin.

[0018] This invention, by setting three locking blocks, can achieve multi-stage clamping of the brake disc, and can select the appropriate position according to the weight of the cable reel, thus ensuring the reliability of the brake.

[0019] Furthermore, a V-shaped bracket is provided on the crossbeam, and two rollers are rotatably mounted on the V-shaped bracket, with the axial direction of the rollers being consistent with the axial direction of the support shaft.

[0020] This invention achieves rolling friction by using idler rollers, which greatly reduces friction and wear.

[0021] Furthermore, the brake assembly is provided on only one of the support frames.

[0022] As can be seen from the above technical solutions, this utility model has the following advantages: This utility model provides a cable laying rack. By using a brake lever to pull down the brake band and press it against the brake disc, friction is generated instantaneously when the brake lever is pressed down, achieving rapid braking and greatly reducing cable interference release. A receiving groove is provided to prevent brake band deviation and braking failure. Threads on the brake lever allow for adjustment of the brake band tension. The cooperation of a jack, crossbeam one, and crossbeam two allows the support position to be changed according to the diameter of the cable reel, expanding the applicability of this cable laying rack. Three locking blocks enable multi-stage pressing of the brake band against the brake disc, allowing for selection of a suitable position based on the weight of the cable reel, ensuring reliable braking. Rolling friction is achieved using rollers, greatly reducing friction and wear. Attached Figure Description

[0023] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0025] Figure 2 This is a schematic diagram of the assembly structure of one of the support frames and brake components according to a specific embodiment of the present invention. Figure 1 .

[0026] Figure 3 This is a schematic diagram of the assembly structure of one of the support frames and brake components according to a specific embodiment of the present invention. Figure 2 .

[0027] Figure 4 This is a schematic diagram of the assembly structure of one of the support frames and brake components according to a specific embodiment of the present invention. Figure 3 .

[0028] Figure 5 This is a diagram showing the braking state during use in a specific embodiment of this utility model.

[0029] In the diagram, 1. Top beam; 2. Supporting diagonal rod; 3. Pin hole; 4. Support column one; 5. Brake disc; 6. Brake band; 7. Positioning pin; 8. Sleeve one; 9. Chassis bracket; 10. Support column two; 11. Slot; 12. Brake handle; 13. Locking block; 14. Limiting ring; 15. Sleeve two; 16. Cross; 17. Brake lever; 18. Fixing rod; 19. Crossbeam one; 20. Crossbeam two; 21. V-shaped bracket; 22. Idler roller; 23. Support plate; 24. Pin shaft; 25. Lifting sleeve; 26. Support frame; 27. Brake assembly; 28. Cable reel; 29. ​​Groove; 30. Support shaft. Detailed Implementation

[0030] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0031] like Figures 1 to 4 As shown, this specific embodiment provides a cable tray, including two opposing support frames 26. A support shaft 30 is rotatably mounted between the support frames 26. A brake disc 5 is coaxially mounted at the end of the support shaft 30. The brake disc 5 can be detachably connected to a cable reel 28, connecting the cable reel 28 and the support shaft 30 as a whole. A brake assembly 27 is mounted on the support frame 26, including a brake band 6. One end of the brake band 6 is mounted on the support frame 26, and the other end surrounds the outer circumference of the brake disc 5 and is connected to the upper end of a brake lever 17. The brake lever 17 is vertically mounted, and its lower end is connected to the brake handle 12. The end of the brake handle 12 is rotatably mounted on the support frame 26. Along the cable outlet direction, the connection position between the brake lever 17 and the brake handle 12 is located in front of the connection position between the brake handle 12 and the support frame 26. The support frame 26 is provided with a corresponding slot 11, which can engage with the brake handle 12. When braking, the brake handle 12 is pressed down, which drives the brake lever 17 to move down. The brake band 6 is pressed against the brake disc 5 by the brake lever 17, generating friction force quickly.

[0032] In this specific embodiment, the brake lever 12 drives the brake rod 17 to pull down the brake band 6 to press the brake disc 5. The brake band 6 and the brake disc 5 come into instantaneous contact, and friction is formed at the moment the brake lever 12 is pressed down, thus achieving rapid braking and greatly reducing the interference release of the cable.

[0033] like Figures 2 to 4As shown, in this specific embodiment, the brake disc 5 adopts the following specific structure: the brake disc 5 includes a connecting part and a brake part. One end of the support shaft 30 passes through the connecting part and is connected radially by a pin. A cross 16 is provided on the end face of the connecting part. A connecting bolt is provided on the cross 16. The connecting bolt is used to connect with the cable reel 28. A receiving groove is provided on the circumferential surface of the brake part. The brake band 6 is placed in the receiving groove. The receiving groove is provided to prevent the brake band 6 from deviating and causing braking failure.

[0034] Because the brake band 6 is subject to thermal expansion and contraction and deformation, in order to ensure the braking effect, in this specific embodiment, the outer circumference of the brake lever 17 is provided with threads. The upper end of the brake lever 17 is rotatably connected to the end of the brake band 6, and the lower end of the brake lever 17 is threadedly connected to the ball head sleeve inside the brake handle 12. The hexagonal head of the ball head sleeve protrudes from the brake handle 12, and the ball head sleeve is freely rotatably disposed inside the brake handle 12. Specifically, the end of the brake band 6 is provided with a connecting sleeve, and a bearing is provided inside the connecting sleeve. The upper end of the brake lever 17 is disposed inside the bearing. When it is necessary to increase the friction force, the brake handle 12 is raised so that the brake lever 17 is in a vertical state. Then, the ball head sleeve is pinched with pliers, and the brake lever 17 is rotated so that the brake lever 17 moves downward. When braking, the contact area between the brake band 6 and the brake disc 5 increases, and the friction force increases; conversely, it decreases.

[0035] To achieve stable support, in this specific embodiment, the support frame 26 can adopt the following specific structure: The support frame 26 includes a chassis support 9, on which support column one 4 and support column two 10 are vertically arranged. The tops of support column one 4 and support column two 10 are connected by a top beam 1. Two support diagonal rods 2 are arranged between the end of the top beam 1 and the chassis support 9, and the two support diagonal rods 2 are arranged in a V-shape. A V-shaped bracket 21 is arranged on the crossbeam one 19, and two rollers 22 are rotatably arranged on the V-shaped bracket 21. The axial direction of the rollers 22 is consistent with the axial direction of the support shaft 30, which can reduce the friction between the support shaft 30 and the crossbeam one 19 when rotating, and reduce wear. Since the diameters of different cable reels 28 are different, in order to facilitate the adjustment of the height of the cable reels 28, in this specific embodiment, multiple pin holes 3 are provided on support column one 4 and support column two 10 along their height direction. A crossbeam one 19 and a crossbeam two 20 are arranged between support column one 4 and support column two 10. The crossbeam one 19 is used to support the support shaft 30. Crossbeam 20 is used to lift crossbeam 19. Sleeve 1 8 and sleeve 2 15 are respectively provided at both ends of crossbeam 19 and crossbeam 20. Sleeve 1 8 is axially movably fitted onto support column 1 4, and sleeve 2 15 is axially movably fitted onto support column 2 10. Both sleeve 1 8 and sleeve 2 15 have radially provided positioning holes. Positioning pin 7 passes through the positioning holes and one of the pin holes 3. A support shaft 30 is supported on crossbeam 19, and crossbeam 20 has a groove 29 for accommodating a jack. The jack can abut against the crossbeam 19. When adjusting the height, place the jack inside the groove 29 and lift it. After lifting, position the crossbeam 19 using the positioning pin 7, then lower the jack to raise the height of the crossbeam 20 and fix it with the corresponding positioning pin 7. Ensure that the distance between the crossbeam 19 and the crossbeam 20 is greater than the height of the jack but less than the height after the jack is lifted. Use the jack to lift again and repeat the cycle until the crossbeam 19 reaches the appropriate height.

[0036] To enable the brake assembly 27 to move with the brake disc 5, in this specific embodiment, one end of the brake band 6 is connected to the sleeve 8 on the crossbeam 19, and the pin 24 is located at the lower part of the crossbeam 20 and is detachably connected to a pin hole 3 on the support column 10. The pin 24 can move axially within the pin hole 3. Specifically, the end of the brake band 6 is provided with a closed flange, which is sleeved on the fixing rod 18. The flange can rotate relative to the fixing rod 18. One end of the fixing rod 18 is provided with a thread and screwed into a radial threaded hole on the sleeve 8. Both ends of the pin 24 are provided with cotter pins to prevent the pin 24 from coming out of the pin hole 3 under vibration or other effects.

[0037] Because cable reels 28 of different weights have different inertia, this specific embodiment provides two braking levels, which can be selected according to the weight of the cable reels 28. Specifically, a support is provided on the second support column 10, and the support includes a welded connection between a lifting sleeve 25 and a support plate 23. The support plate 23 is horizontally arranged on one side of the lifting sleeve 25. The lifting sleeve 25 is axially movably sleeved on the second support column 10 and its position is fixed by corresponding pin holes 3 and bolts. An elliptical limiting ring 14 is welded on the support plate 23 of the support. The limiting ring 14 is vertically arranged, and the brake handle 12 can extend from the limiting ring 14. At least three locking blocks 13 are arranged from top to bottom on the inner wall of the limiting ring 14. A slot 11 is arranged between two adjacent locking blocks 13. The uppermost slot 11 is lower than the height of the pin 24. In this specific embodiment, three locking blocks 13 are arranged to form two slots 11. With this arrangement, when the mass of the cable reel 28 is large, the brake handle 12 can be engaged with the lowermost slot 11 after braking. When the mass is small, the uppermost slot 11 can be selected.

[0038] Two brake assemblies 27 can be provided, each located on a corresponding support frame 26. In this specific embodiment, one brake assembly 27 is provided. The brake band 6 is made of wear-resistant rubber material. When not braking, its inner surface slides and rubs against the brake disc 5, resulting in low friction. When braking, pressing down on the brake lever 12 increases the contact area between the brake band 6 and the brake disc 5, and also increases the radial pressure of the brake band 6 on the brake disc 5. According to the friction formula, this greatly increases the friction force, achieving rapid braking.

[0039] As can be seen from the above specific embodiments, this utility model has the following beneficial effects: 1. By using the brake lever 12 to drive the brake rod 17 to pull down the brake band 6 and press the brake disc 5, friction is generated at the moment the brake lever 12 is pressed down, achieving rapid braking and greatly reducing the interference release of the cable. 2. By setting up a receiving groove, the brake band 6 is prevented from veering off course, which could cause braking failure. 3. The tension of the brake band 6 can be adjusted by setting threads on the brake lever 17; 4. By cooperating with the jack, crossbeam 19 and crossbeam 20, the support position can be changed according to the diameter of the cable reel 28, thereby increasing the applicability of this cable laying frame. 5. By setting three locking blocks 13, the brake band 6 can be pressed against the brake disc 5 in multiple stages, and the appropriate position can be selected according to the weight of the cable reel 28 to ensure the reliability of the brake. 6. By using the idler roller 22 to achieve rolling friction, the friction force is greatly reduced and wear is minimized.

[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cable laying rack, comprising two opposing support frames (26), wherein a support shaft (30) is disposed between the support frames (26), characterized in that, A brake disc (5) is coaxially provided at the end of the support shaft (30). The brake disc (5) can be detachably connected to the cable reel. A brake assembly (27) is provided on the support frame (26). The brake assembly (27) includes a brake band (6). One end of the brake band (6) is provided on the support frame (26), and the other end is connected to the upper end of the brake lever (17) after surrounding the outer circle of the brake disc (5). The lower end of the brake lever (17) is connected to the brake handle (12). The end of the brake handle (12) is rotatably provided on the support frame (26). A slot (11) is provided at the corresponding position of the support frame (26). The slot (11) can engage with the brake handle (12).

2. The cable tray as described in claim 1, characterized in that, The brake disc (5) has a receiving groove on its circumferential surface, and the brake band (6) is disposed in the receiving groove.

3. The cable tray as described in claim 2, characterized in that, The brake lever (17) has a thread on its outer circumference. The upper end of the brake lever (17) is rotatably connected to the brake band (6) through a bearing, and the lower end of the brake lever (17) is threadedly connected to the brake handle (12).

4. The cable tray as described in claim 3, characterized in that, The mounting end of the brake lever (12) is rotatably connected to the support frame (26) via a pin (24). The mounting end is connected to the lower part of the brake rod (17). Along the cable outlet direction, the connection position between the brake rod (17) and the brake lever (12) is located at the front of the pin (24).

5. The cable tray as described in claim 4, characterized in that, The support frame (26) includes a chassis support (9), on which a support column one (4) and a support column two (10) are vertically arranged. The tops of the support column one (4) and the support column two (10) are connected by a top beam (1). Two support diagonal rods (2) are arranged between the end of the top beam (1) and the chassis support (9), and the two support diagonal rods (2) are arranged in a V-shape.

6. The cable tray as described in claim 5, characterized in that, Multiple pin holes (3) are provided on both the first support column (4) and the second support column (10) along their height direction. A crossbeam (19) and a crossbeam (20) are provided between the first support column (4) and the second support column (10). A sleeve (8) and a sleeve (15) are provided at both ends of the first crossbeam (19) and the second crossbeam (20). The sleeve (8) is axially movably fitted on the first support column (4), and the sleeve (15) is axially movably fitted on the second support column (10). A positioning hole is provided on both the first sleeve (8) and the second sleeve (15) along the radial direction. A positioning pin (7) passes through the positioning hole and one of the pin holes (3). The support shaft (30) is supported on the first crossbeam (19), and a groove (29) for accommodating the jack is provided on the second crossbeam (20).

7. The cable tray as described in claim 6, characterized in that, One end of the brake band (6) is connected to the sleeve (8), and the pin (24) is located at the lower part of the crossbeam (20) and is detachably connected to one of the pin holes (3) on the support column (10).

8. The cable tray as described in claim 7, characterized in that, An elliptical limiting ring (14) is raised and lowered on the second support column (10). The limiting ring (14) is vertically arranged. The brake handle (12) can extend out from the limiting ring (14). At least three locking blocks (13) are arranged from top to bottom on the inner wall of the limiting ring (14). The brake handle (12) can abut against the corresponding locking block (13). The locking groove (11) is arranged between two adjacent locking blocks (13). The uppermost locking groove (11) is lower than the height of the pin (24).

9. The cable tray as described in claim 6, characterized in that, A V-shaped bracket (21) is provided on the crossbeam (19), and two rollers (22) are rotatably mounted on the V-shaped bracket (21). The axial direction of the rollers (22) is consistent with the axial direction of the support shaft (30).

10. The cable tray as described in claim 1, characterized in that, The brake assembly (27) is provided on only one of the support frames (26).

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