Cable unwinding device for power transmission and transformation project construction

Abstract

The utility model discloses a cable unreeling device for power transmission and transformation project construction, which comprises a base, the upper end of the base is recessed inwards to form two moving chambers, a screw is rotatably arranged in each moving chamber, a moving seat is in threaded connection with the screw, the upper end of the moving seat penetrates through the moving chambers to be fixedly connected with a supporting arm, and the supporting arm is fixedly connected with a cable. Bearings are installed on the supporting arm, rotating shafts are arranged in the two bearings, cable trays are fixedly arranged on the rotating shafts, one end of the screw penetrates through the moving chamber to be fixedly connected with a rotating handle, two guide rails are arranged on the base in a sliding mode, one end of each guide rail is provided with an inclined face, and installation grooves matched with the guide rails are formed in the base. A cable reel wound with a cable can be rapidly installed on the whole unwinding device, a crane does not need to be used for hoisting and installing the cable reel, the cable moving in the unwinding process can be clamped and fixed, and meanwhile the guide rail can be fixed to the base.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission and transformation engineering construction, and more specifically, to a cable unwinding device for power transmission and transformation engineering construction. Background Art

[0002] Power transmission and transformation engineering is an important field in power system engineering, mainly involving the design, construction and operation of transmission lines and substations. In the construction of power transmission and transformation engineering, a cable unwinding device is required to facilitate the installation of cables. During the use of the existing cable unwinding device for power transmission and transformation engineering construction, due to the large overall weight of the cable reel wrapped with cables, it is usually necessary to use a crane to lift it before installing it on the unwinding device, which is complicated to operate and makes it inconvenient to replace the cable reel; secondly, the existing cable unwinding device for power transmission and transformation engineering construction is usually not equipped with components to limit the cable pressure, which makes it easy for the cables on the cable reel to become loose and chaotic during the unwinding process, and the cables that have not been released from the cable reel are also loose, affecting the subsequent normal unwinding and use. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the problems existing in the prior art, the utility model provides a cable unwinding device for power transmission and transformation project construction, so as to solve the technical problem that during use, the cable reel with the cable wound around it is heavy and usually needs to be lifted by a crane before it can be installed on the unwinding device, which results in complicated operation.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cable unwinding device for power transmission and transformation engineering construction, comprising a base, the upper end of the base is recessed inward to form two moving chambers, a screw is rotatably provided in each of the moving chambers, a moving seat is threadedly connected to the screw, the upper end of the moving seat passes through the moving chamber and is fixedly connected to a support arm, a bearing is installed on the support arm, a rotating shaft is provided in each of the two bearings, a cable drum is fixedly provided on the rotating shaft, one end of the screw passes through the moving chamber and is fixedly connected to a turning handle, two guide rails are slidably provided on the base, one end of each guide rail is provided with an inclined surface, and a mounting groove matching the guide rail is provided on the base;

[0007] A support plate is fixedly arranged on the base, a limit chamber is arranged on the support plate, a lower pressing roller is rotatably arranged in the limit chamber, and an upper pressing roller is movably arranged in the limit chamber.

[0008] The utility model is further configured that a lifting frame is slidably connected to the limiting chamber through a track structure, and the upper wire pressing roller is rotatably arranged in the lifting frame to facilitate the movement of the upper wire pressing roller.

[0009] The utility model is further configured that a lifting rod is fixedly provided on the lifting frame, and a first spring is provided on a movable sleeve outside the lifting rod to facilitate pushing the lifting frame to move downward.

[0010] The utility model is further configured that a sleeve is threadedly connected to the support plate, and the sleeve is movably connected to the lifting rod to facilitate the movement of the sleeve.

[0011] The utility model is further configured that the lower end of the sleeve extends into the limiting chamber and is fixedly connected with a pushing ring, and the first spring is arranged between the pushing ring and the lifting frame to facilitate the movement of the pushing ring.

[0012] The utility model is further configured that a fixed chamber is provided in each guide rail, a movable plate is movably provided in the fixed chamber, and a second spring is provided between the movable plate and the fixed chamber to facilitate pushing the movable plate.

[0013] The utility model is further configured that a plug rod is fixedly provided on one side of the movable plate, and one end of the plug rod passes through the fixing chamber and is inserted into the base, so as to fix the guide rail.

[0014] The utility model is further configured that a push rod is fixedly provided on one side of the movable plate, and one end of the push rod passes through the fixed chamber and extends to the outside of the fixed chamber to facilitate the movement of the movable plate.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a cable unwinding device for power transmission and transformation engineering construction, which has the following beneficial effects:

[0017] 1. Through the coordination of the base, moving chamber, screw, moving seat, support arm, bearing, rotating shaft, cable reel, turning handle, guide rail, inclined surface and mounting groove, the cable reel with the cable wound around it can be quickly installed on the entire unwinding device. There is no need to use a crane to lift the cable reel for installation. The operation is simple, making the cable reel replacement convenient and quick.

[0018] 2. The supporting plate, the limiting chamber, the lower pressing roller, the upper pressing roller, the lifting frame, the lifting rod, the first spring, the sleeve and the pushing ring cooperate to clamp and fix the moving cable during the unwinding process, thereby limiting its position, avoiding the phenomenon of loose and chaotic cables during the unwinding process, preventing the cables that have not been released from the cable reel from becoming loose, and ensuring the subsequent normal unwinding and use.

[0019] 3. The guide rail can be fixed to the base through the cooperation of the guide rail, the fixed chamber, the movable plate, the second spring, the plug rod and the push rod to prevent the cable reel from rolling on the guide rail and causing the guide rail to be separated from the base due to force, thereby ensuring the normal installation of the cable reel. At the same time, the guide rail installation method is simple and very convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a cable unwinding device for power transmission and transformation engineering construction in use;

[0021] Figure 2 for Figure 1 A is a partial enlarged schematic diagram;

[0022] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the base and its connecting parts when the cable reel is installed;

[0023] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the support plate and its connecting parts when the upper crimping roller is moving downward;

[0024] Figure 5 This is a schematic diagram of the partial cross-section structure when the guide rail is not installed.

[0025] In the figure: 1. base; 2. moving chamber; 3. screw; 4. moving seat; 5. support arm; 6. bearing; 7. rotating shaft; 8. cable drum; 9. turning handle; 10. guide rail; 11. inclined plane; 12. mounting groove; 13. support plate; 14. limit chamber; 15. lower pressure roller; 16. upper pressure roller; 17. lifting frame; 18. lifting rod; 19. first spring; 20. sleeve; 21. pushing ring; 22. fixed chamber; 23. moving plate; 24. second spring; 25. insertion rod; 26. push rod. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0029] See also Figure 1-5 A cable unwinding device for power transmission and transformation engineering construction, comprising a base 1, the upper end of the base 1 is recessed inward to form two moving chambers 2, each of the moving chambers 2 is rotatably provided with a screw 3, the screw 3 is threadedly connected with a moving seat 4, the upper end of the moving seat 4 passes through the moving chamber 2 and is fixedly connected with a support arm 5, a bearing 6 is installed on the support arm 5, both of the two bearings 6 are provided with a rotating shaft 7, a cable drum 8 is fixedly provided on the rotating shaft 7, one end of the screw 3 passes through the moving chamber 2 and is fixedly connected with a turning handle 9, two guide rails 10 are slidably provided on the base 1, each of the guide rails 10 is provided with an inclined surface 11 at one end, and a mounting groove 12 matching the guide rail 10 is provided on the base 1;

[0030] A support plate 13 is fixedly disposed on the base 1 , a limit chamber 14 is disposed on the support plate 13 , a lower pressing roller 15 is rotatably disposed in the limit chamber 14 , and an upper pressing roller 16 is movably disposed in the limit chamber 14 .

[0031] In this embodiment, when it is necessary to install the cable drum 8 with the cable wound around it, the two guide rails 10 are respectively installed in the two installation grooves 12, and the cable drum 8 is pushed so that the cable drum 8 rolls along the two guide rails 10 to the top of the base 1, and the two turning handles 9 are rotated in sequence. The turning handles 9 rotate and the screw rod 3 is rotated at the same time, so that the moving seat 4 moves along the moving chamber 2 toward the cable drum 8, and the moving seat 4 drives the support arm 5 to move, and the support arm 5 drives the bearing 6 to move, so that the two ends of the rotating shaft 7 are respectively inserted into the two bearings 6, thereby installing the entire cable drum 8. Use the opposite method to remove the two guide rails 10 from the base 1, so that the cable drum 8 is separated from the guide rails 10, and at the same time, the cable drum 8 is separated from the base 1.

[0032] More specifically, two guide rails 10 can be installed so that the cable drum 8 can be moved to the top of the base 1 through the guide rails 10, and the two turning handles 9 are turned in sequence so that the two ends of the rotating shaft 7 are respectively inserted into the two bearings 6, thereby installing the entire cable drum 8. The cable is passed between the lower pressing roller 15 and the upper pressing roller 16, and the upper pressing roller 16 moves downward, thereby cooperating with the small pressing roller to clamp and fix the cable. When the cable is unwound, the upper pressing roller 16 and the lower pressing roller 15 rotate, thereby reducing the friction when the cable is unwound.

[0033] See also Figure 1-5 As an implementation method for moving the upper pressing roller 16: a lifting frame 17 is slidably connected to the limit chamber 14 through a track structure, and the upper pressing roller 16 is rotatably set in the lifting frame 17. A lifting rod 18 is fixedly provided on the lifting frame 17, and a first spring 19 is movably sleeved on the outer side of the lifting rod 18. A sleeve 20 is threadedly connected to the support plate 13, and the sleeve 20 is movably connected to the lifting rod 18. The lower end of the sleeve 20 extends into the limit chamber 14 and is fixedly connected to a pushing ring 21, and the first spring 19 is set between the pushing ring 21 and the lifting frame 17.

[0034] Specifically, under the push of the first spring 19, the lifting frame 17 drives the lifting rod 18 to move downward, and at the same time, the lifting frame 17 drives the upper wire pressing roller 16 to move downward, and cooperates with the lower wire pressing roller 15 to limit the cable wire pressing. When the elastic force of the first spring 19 weakens during long-term use, the sleeve 20 is rotated. Since the sleeve 20 is threadedly connected to the support plate 13, the sleeve 20 rotates and moves downward. At the same time, the sleeve 20 will drive the push ring 21 to rotate and move downward, thereby shortening the distance between the push ring 21 and the lifting frame 17, and the elastic force of the first spring 19 can be adjusted.

[0035] See also Figure 1-5 As an implementation method for fixing the guide rail 10: a fixed chamber 22 is provided in each of the guide rails 10, a movable plate 23 is movably provided in the fixed chamber 22, a second spring 24 is provided between the movable plate 23 and the fixed chamber 22, an insertion rod 25 is fixedly provided on one side of the movable plate 23, one end of the insertion rod 25 passes through the fixed chamber 22 and is inserted into the base 1, a push rod 26 is fixedly provided on one side of the movable plate 23, one end of the push rod 26 passes through the fixed chamber 22 and extends to the outside of the fixed chamber 22.

[0036] Specifically, when the guide rail 10 needs to be fixed, the push rod 26 is pushed, and the push rod 26 drives the movable plate 23 to move in the fixed chamber 22. The second spring 24 is compressed, and at the same time, the movable plate 23 drives the insertion rod 25 to move into the fixed chamber 22, and the guide rail 10 is moved to the installation groove 12. The push rod 26 is released, and under the action of the second spring 24, the movable plate 23 drives the insertion rod 25 and the push rod 26 to move back to the original position. At this time, the insertion rod 25 is inserted into the base 1, thereby fixing the guide rail 10 to the base 1.

[0037] To sum up, when the overall equipment is in use:

[0038] When it is necessary to install two guide rails 10, push the push rod 26, which drives the movable plate 23 to move in the fixed chamber 22, and the second spring 24 is compressed. At the same time, the movable plate 23 drives the insertion rod 25 to move into the fixed chamber 22, and the guide rail 10 is moved into the installation groove 12. Release the push rod 26, and under the action of the second spring 24, the movable plate 23 drives the insertion rod 25 and the push rod 26 to move back to the original position. At this time, the insertion rod 25 is inserted into the base 1, thereby fixing the guide rail 10 to the base 1.

[0039] When the cable drum 8 with the cable wound around it needs to be installed, the cable drum 8 is pushed so that the cable drum 8 rolls along the two guide rails 10 to the top of the base 1, and the two turning handles 9 are turned in sequence. The turning handles 9 rotate while driving the screw 3 to rotate, so that the moving seat 4 moves along the moving chamber 2 toward the cable drum 8, and the moving seat 4 drives the support arm 5 to move, and the support arm 5 drives the bearing 6 to move, so that the two ends of the rotating shaft 7 are respectively inserted into the two bearings 6, thereby installing the entire cable drum 8. Use the opposite method to remove the two guide rails 10 from the base 1, so that the cable drum 8 is separated from the guide rails 10, and at the same time, the cable drum 8 is separated from the base 1.

[0040] When the cable needs to be unwound, one end of the cable is passed between the lower pressing roller 15 and the upper pressing roller 16. Under the push of the first spring 19, the lifting frame 17 drives the lifting rod 18 to move downward, and the lifting frame 17 drives the upper pressing roller 16 to move downward, and cooperates with the lower pressing roller 15 to limit the cable. When the cable is unwound, the upper pressing roller 16 and the lower pressing roller 15 rotate, thereby reducing the friction when the cable is unwound. When the elastic force of the first spring 19 weakens during long-term use, the sleeve 20 is rotated. Since the sleeve 20 is threadedly connected to the support plate 13, the sleeve 20 rotates and moves downward. At the same time, the sleeve 20 drives the push ring 21 to rotate and move downward, thereby shortening the distance between the push ring 21 and the lifting frame 17, and the elastic force of the first spring 19 can be adjusted.

[0041] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A cable unwinding device for power transmission and transformation engineering construction, comprising a base (1), characterized in that: The upper end of the base (1) is recessed inward to form two moving chambers (2), each of the moving chambers (2) is provided with a screw rod (3) for rotation, the screw rod (3) is threadedly connected to a moving seat (4), the upper end of the moving seat (4) passes through the moving chamber (2) and is fixedly connected to a support arm (5), the support arm (5) is provided with a bearing (6), both bearings (6) are provided with a rotating shaft (7), a cable drum (8) is fixedly provided on the rotating shaft (7), one end of the screw rod (3) passes through the moving chamber (2) and is fixedly connected to a turning handle (9), two guide rails (10) are slidably provided on the base (1), each of the guide rails (10) is provided with an inclined surface (11) at one end, and a mounting groove (12) matching the guide rail (10) is provided on the base (1); A support plate (13) is fixedly provided on the base (1), a limiting chamber (14) is provided on the support plate (13), a lower pressing roller (15) is rotatably provided in the limiting chamber (14), and an upper pressing roller (16) is movably provided in the limiting chamber (14).

2. The cable unwinding device for power transmission and transformation engineering construction according to claim 1 is characterized in that: The limiting chamber (14) is slidably connected to a lifting frame (17) via a track structure, and the upper pressing roller (16) is rotatably arranged in the lifting frame (17).

3. The cable unwinding device for power transmission and transformation engineering construction according to claim 2 is characterized in that: A lifting rod (18) is fixedly provided on the lifting frame (17), and a first spring (19) is movably sleeved on the outer side of the lifting rod (18).

4. The cable unwinding device for power transmission and transformation engineering construction according to claim 3 is characterized by: A sleeve (20) is threadedly connected to the support plate (13), and the sleeve (20) is movably connected to the lifting rod (18).

5. The cable unwinding device for power transmission and transformation engineering construction according to claim 4 is characterized in that: The lower end of the sleeve (20) extends into the limiting chamber (14) and is fixedly connected to a pushing ring (21); the first spring (19) is arranged between the pushing ring (21) and the lifting frame (17).

6. A cable unwinding device for power transmission and transformation engineering construction according to any one of claims 1 or 2, characterized in that: A fixed chamber (22) is provided in each guide rail (10), a movable plate (23) is movably provided in the fixed chamber (22), and a second spring (24) is provided between the movable plate (23) and the fixed chamber (22).

7. A cable unwinding device for power transmission and transformation engineering construction according to claim 6, characterized in that: An insertion rod (25) is fixedly provided on one side of the movable plate (23), and one end of the insertion rod (25) passes through the fixing chamber (22) and is inserted into the base (1).

8. The cable unwinding device for power transmission and transformation engineering construction according to claim 7 is characterized by: A push rod (26) is fixedly provided on one side of the movable plate (23), and one end of the push rod (26) passes through the fixed chamber (22) and extends to the outside of the fixed chamber (22).

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