A cable winding and unwinding device for a substation machine room

Abstract

The utility model belongs to the technical field of power facility construction and maintenance, especially relates to a transformer substation machine room cable take-up device. The inner side rotation of support is connected with the take-up roll, the outer peripheral ring array of take-up roll has a plurality of arc sleeve pipes, a plurality of arc sleeve pipes surround and form the cylindrical winding surface for winding cable, the inner side of arc sleeve pipe is provided with a plurality of arc grooves along the axial arrangement of take-up roll. The protruding mechanism is driven along the radial telescopic of take-up roll through hydraulic drive, and the arc groove in the inner side of arc sleeve pipe is tightly pressed, which realizes the flexible adjustment of the diameter of cylindrical winding surface, can adapt to the dynamic change of diameter in the winding process of different specifications of cable, and breaks the limitation of traditional fixed diameter device.

Description

Technical Field

[0001] This utility model belongs to the field of power facility construction and maintenance technology, and in particular relates to a cable winding and unwinding device for substation equipment rooms. Background Technology

[0002] Cable winding and unwinding is a core operational step in the construction, inspection, and equipment maintenance of substation equipment rooms, and its efficiency and quality directly affect the project progress and the stability of the power supply system. Substation equipment rooms contain a variety of cable specifications, and the cable winding diameter dynamically changes with the winding amount during the winding process, which places stringent requirements on the adaptability and stability of the cable winding and unwinding equipment. Most existing cable winding and unwinding devices commonly used in substation equipment rooms have a fixed diameter structure, with the winding surface consisting of an integrated roller, and the diameter cannot be adjusted. To address the drawbacks of a fixed diameter, some improved winding and unwinding devices adopt a multi-lobed adjustable structure, forming the winding surface through spliced ​​arc-shaped plates, and adjusting the diameter using a mechanical locking structure. However, such devices still have key defects: First, the arc-shaped plates lack positioning constraints during adjustment, making them prone to radial displacement due to uneven force, resulting in insufficient cylindricity of the winding surface after enclosure, uneven force during cable winding, and further aggravating loosening and wear; Second, the axial fixing structure of the arc-shaped plates is poorly designed, often using a single end plate limiter, which cannot effectively restrict the axial movement of the arc-shaped plates during winding and unwinding, leading to axial displacement and stacking compression of the cable, seriously affecting the stability of the winding and unwinding operation and the quality of cable storage. There is an urgent need for improvement, so we propose a cable winding and unwinding device for substation equipment rooms. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned technical problems by providing a cable winding and unwinding device for substation equipment rooms, which achieves improved winding surface precision, wider adaptability, and enhanced axial stability.

[0004] In view of this, the present invention provides a cable winding and unwinding device for a substation equipment room, comprising: The bracket has a take-up and release roller rotatably connected to its inner side. The outer circumference of the take-up and release roller has a number of arc-shaped sleeves arranged in an annular array. The number of arc-shaped sleeves enclose a cylindrical winding surface for winding the cable. The inner side of the arc-shaped sleeves has a number of arc-shaped grooves arranged along the axial direction of the take-up and release rollers. A protruding mechanism is provided inside the take-up and release rollers. The protruding end of the protruding mechanism extends into the arc-shaped groove. The protruding mechanism is hydraulically driven and can extend and retract radially along the take-up and release rollers. The fixing mechanism is provided in two sets, which are respectively located on the outside of the two axial ends of the arc-shaped sleeve to fix the axial position of the arc-shaped sleeve, while the retaining rings at both ends restrict the axial movement of the cable.

[0005] Furthermore, the outer wall of the arc-shaped sleeve is provided with a rubber anti-slip layer.

[0006] Furthermore, a hydraulic chamber is provided inside the take-up and release roller at the position of the arc-shaped groove. A liquid storage chamber connected to the hydraulic chamber is provided inside the take-up and release roller. A three-way pipe is rotatably connected to one end of the take-up and release roller. An inlet and an outlet are respectively provided at the end of the three-way pipe away from the take-up and release roller. The inlet is connected to an external hydraulic pump through an oil pipe, and a valve is provided at the outlet.

[0007] Furthermore, the protruding mechanism includes a movable block slidably connected inside the hydraulic cavity. One end of the movable block extends into the arc-shaped groove and is fixedly connected to an arc-shaped plate. The arc-shaped plate is adapted to the inner wall of the arc-shaped groove and the opening of the hydraulic cavity. A limiting plate is fixedly connected to the bottom end of the movable block. A sealing ring is provided on the outside of the movable block. The sealing ring is located between the limiting plate and the opening of the hydraulic cavity, and the sealing ring is adapted to the inner wall of the hydraulic cavity.

[0008] Furthermore, the fixing mechanism includes a double-arm ring, which is formed by a first arc-shaped arm segment and a second arc-shaped arm segment connected by a pivot to form an openable and closable ring structure. The free ends of the first arc-shaped arm segment and the second arc-shaped arm segment are provided with through holes for connecting with bolts. The free end of the second arc-shaped arm segment is provided with a mounting hole communicating with the through hole. A nut is fixedly installed inside the mounting hole. One end of the bolt passes through the through hole and is threadedly connected to the nut.

[0009] Furthermore, the inner wall of the double-arm ring is provided with an annular positioning groove, and the inner wall of the positioning groove is provided with a rubber anti-slip pad.

[0010] Furthermore, a motor is fixedly installed on the outer wall of one end of the bracket, and the drive end of the motor is fixedly connected to one end of the take-up and release rollers.

[0011] The beneficial effects of this utility model are: The protruding mechanism extends and retracts radially along the take-up and undo rollers via hydraulic drive, pressing against the arc-shaped groove on the inner side of the arc-shaped sleeve. This allows for flexible adjustment of the diameter of the cylindrical winding surface, adapting to different cable specifications and dynamic changes in diameter during winding, breaking the limitations of traditional fixed diameter devices. The fixing mechanism uses a split-opening locking structure to clamp and fix the arc-shaped sleeve from both axial ends. This, together with the radial pressing of the protruding mechanism, forms a double fixation of radial and axial forces. This not only firmly locks the axial position of the arc-shaped sleeve to prevent movement during winding and undoing, but also forms an axial limit through the retaining rings at both ends to prevent the cable from becoming loose, slipping, or being squeezed by friction. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the overall structure of a cable winding and unwinding device for a substation equipment room proposed in this utility model; Figure 2 This is a schematic diagram of the take-up and untake-down roller structure of a cable take-up and untake-down device for a substation equipment room proposed in this utility model; Figure 3 This is a schematic diagram of the disassembled structure of the take-up roller and the arc-shaped sleeve of the cable take-up and release device for a substation equipment room proposed in this utility model; Figure 4 This is a schematic diagram of a double-arm ring structure for a cable take-up and unwinding device for a substation equipment room proposed in this utility model; Figure 5 This is a schematic diagram of the internal structure of the take-up and take-up roller of a cable take-up and take-up device for a substation equipment room proposed in this utility model; Figure 6 This utility model proposes a cable take-up and unwinding device for a substation equipment room. Figure 5 Enlarged view of point A in the middle; The markings in the diagram are as follows: 1. Support; 2. Take-up and untake-down rollers; 3. Arc-shaped sleeve; 4. Arc-shaped groove; 5. Hydraulic chamber; 6. Moving block; 7. Arc-shaped plate; 8. Limiting plate; 9. Sealing ring; 10. Double arm ring; 11. First arc-shaped arm segment; 12. Second arc-shaped arm segment; 13. Pivot; 14. Through hole; 15. Mounting hole; 16. Nut; 17. Bolt; 18. Motor; 19. Liquid storage chamber; 20. T-connector. Detailed Implementation

[0013] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0014] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0015] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0016] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0017] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0018] Reference Figures 1 to 6 A cable take-up and drop device for a substation equipment room, comprising: A bracket 1 is rotatably connected to a take-up and release roller 2. The outer periphery of the take-up and release roller 2 is arranged with several arc-shaped sleeves 3. The several arc-shaped sleeves 3 surround and form a cylindrical winding surface for winding the cable. Several arc-shaped grooves 4 are opened on the inner side of the arc-shaped sleeves 3 along the axial direction of the take-up and release roller 2. The protruding mechanism is located inside the take-up and release roller 2. The protruding end of the protruding mechanism extends into the arc-shaped groove 4. The protruding mechanism is hydraulically driven and can extend and retract radially along the take-up and release roller 2. The fixing mechanism is provided in two sets, which are respectively located on the outside of the two axial ends of the arc-shaped sleeve 3 to fix the axial position of the arc-shaped sleeve 3, while the retaining rings at both ends restrict the axial movement of the cable.

[0019] In use, the protruding end of the protruding mechanism is driven by a hydraulic system to extend radially along the take-up and release roller 2, so that it presses against the arc-shaped groove 4 inside the arc-shaped sleeve 3. Several annular arrays of arc-shaped sleeves 3 are used to form a cylindrical winding surface that matches the cable diameter. The fitting design between the arc-shaped groove 4 and the protruding end can prevent the arc-shaped sleeve 3 from shifting during adjustment, ensuring the cylindricity of the winding surface. Subsequently, two sets of fixing mechanisms are operated to clamp and fix the arc-shaped sleeve 3 from both ends of the axial direction through a semi-open locking structure. This not only locks the axial position of the arc-shaped sleeve 3 to prevent it from shifting during take-up and release, but also forms an axial limit through the retaining rings at both ends of the fixing mechanism, providing a stable boundary constraint for subsequent cable winding.

[0020] In the example of this application, the outer wall of the arc-shaped sleeve 3 is provided with a rubber anti-slip layer.

[0021] As a preferred example of this utility model, when the cable is wound up, the anti-slip layer can effectively prevent the cable from sliding relative to the surface of the arc-shaped sleeve 3, avoid wear and scratches caused by the cable sliding, and at the same time enhance the tightness of the cable winding and reduce the cable movement during the winding process. In the example of this application, a hydraulic chamber 5 is provided inside the take-up and release roller 2 and at the position of the arc-shaped groove 4. A liquid storage chamber 19 connected to the hydraulic chamber 5 is provided inside the take-up and release roller 2. A three-way pipe 20 is rotatably connected to one end of the take-up and release roller 2. An inlet and an outlet are respectively provided at the end of the three-way pipe 20 away from the take-up and release roller 2. The inlet is connected to an external hydraulic pump through an oil pipe, and a valve is provided at the outlet.

[0022] As a preferred example of this utility model, the three-way pipe 20 serves as a transfer component for the flow of hydraulic oil. One end is rotatably connected to the take-up and release roller 2, which can prevent the oil pipe from getting tangled and knotted when the take-up and release roller 2 rotates. The inlet at the other end is used to access external hydraulic oil. The inlet is connected to an external hydraulic pump through an oil pipe to realize the injection and discharge control of hydraulic oil. The valve set at the outlet can adjust the flow rate and on / off state of the hydraulic oil: when the valve is open, the hydraulic pump works to inject hydraulic oil into the hydraulic chamber 5 through the three-way pipe 20, driving the protruding mechanism to extend; when the valve is closed, the hydraulic chamber 5 maintains the sealing pressure, and the protruding mechanism maintains the pressing state; when pressure relief is required, the valve is opened to release the hydraulic oil, and the protruding mechanism retracts, realizing the controllability of hydraulic drive.

[0023] In the example of this application, the protruding mechanism includes a movable block 6 slidably connected inside the hydraulic cavity 5. One end of the movable block 6 extends into the arc-shaped groove 4 and is fixedly connected to an arc-shaped plate 7. The arc-shaped plate 7 is adapted to the inner wall of the arc-shaped groove 4 and the opening 21 of the hydraulic cavity 5. A limiting plate 8 is fixedly connected to the bottom end of the movable block 6. A sealing ring 9 is provided on the outside of the movable block 6. The sealing ring 9 is located between the limiting plate 8 and the opening 21 of the hydraulic cavity 5, and the sealing ring 9 is adapted to the inner wall of the hydraulic cavity 5.

[0024] As a preferred example of this utility model, on the one hand, the contact area with the inner wall of the arc-shaped sleeve 3 is increased to ensure a uniform distribution of the clamping force and prevent excessive local pressure from causing deformation of the arc-shaped sleeve 3. On the other hand, it ensures the guiding nature of the moving block 6 during extension and retraction, preventing deviation and jamming. The limiting plate 8 fixedly connected to the bottom end of the moving block 6 plays a limiting role, which can limit the maximum extension distance of the moving block 6 and prevent the moving block 6 from over-extending and damaging the arc-shaped sleeve 3 or its own structure due to excessive hydraulic pressure. The sealing ring 9 set between the limiting plate 8 and the outlet of the hydraulic cavity 5 can enhance the sealing performance of the hydraulic cavity 5, prevent hydraulic oil from leaking from the gap between the moving block 6 and the wall of the hydraulic cavity 5, ensure stable hydraulic drive pressure, and improve the working reliability of the protruding mechanism.

[0025] In the example of this application, the fixing mechanism includes a double-arm ring 10, which is formed by a first arc-shaped arm segment 11 and a second arc-shaped arm segment 12 hinged together by a pivot 13 to form an openable and closable ring structure. The free ends of the first arc-shaped arm segment 11 and the second arc-shaped arm segment 12 are provided with through holes 14 for connecting with bolts 17. The free end of the second arc-shaped arm segment 12 is provided with a mounting hole 15 communicating with the through hole 14. A nut 16 is fixedly installed inside the mounting hole 15. One end of the bolt 17 passes through the through hole 14 and is threadedly connected to the nut 16.

[0026] As a preferred example of this utility model, when it is necessary to fix the arc-shaped sleeve 3, the double-arm ring 10 is opened and fitted onto the axial ends of the arc-shaped sleeve 3. The arc-shaped arm section is closed so that the through holes 14 at the free ends are aligned. The bolt 17 is passed through the through holes 14 and threadedly connected to the nut 16 in the mounting hole 15 of the second arc-shaped arm section 12. By tightening the bolt 17, the double-arm ring 10 is firmly held at both ends of the arc-shaped sleeve 3, thereby fixing the axial position of the arc-shaped sleeve 3 and preventing the arc-shaped sleeve 3 from axially displacing when the take-up and release roller 2 rotates. At the same time, the annular structure of the double-arm ring 10 itself forms retaining rings at both ends. When the cable is wound on the winding surface enclosed by the arc-shaped sleeve 3, the retaining rings can limit the cable in the axial direction, preventing the cable from becoming loose or falling off due to axial movement during the take-up and release process, and ensuring that the cable is neatly arranged.

[0027] In the example of this application, the inner sidewall of the double-arm ring 10 is provided with an annular positioning groove, and the inner wall of the positioning groove is provided with a rubber anti-slip pad.

[0028] As a preferred example of this utility model, when the double-arm ring 10 closes and tightly hugs the arc-shaped sleeve 3, both ends of the arc-shaped sleeve 3 are embedded in the positioning groove, forming an axial positioning that further restricts the circumferential rotation and axial displacement of the arc-shaped sleeve 3, thereby improving the positioning accuracy of the fixing mechanism. The rubber anti-slip pads provided on the inner wall of the positioning grooves, on the one hand, utilize the elastic deformation characteristics of rubber to enhance the fit between the double-arm ring 10 and the arc-shaped sleeve 3, making the fixing more secure. On the other hand, by increasing the coefficient of friction, they prevent relative sliding between the double-arm ring 10 and the arc-shaped sleeve 3. At the same time, the buffering effect of the rubber material can avoid wear caused by direct contact between the metal double-arm ring 10 and the arc-shaped sleeve 3, thus extending the service life of the components.

[0029] In the example of this application, a motor 18 is fixedly installed on the outer wall of one end of the bracket 1, and the driving end of the motor 18 is fixedly connected to one end of the take-up and release roller 2.

[0030] As a preferred example of this utility model, when the motor 18 rotates in the forward direction, it drives the take-up and release roller 2 to rotate clockwise, and the winding surface enclosed by the arc-shaped sleeve 3 rotates synchronously, gradually winding the cable around the winding surface to complete the cable winding operation; when the motor 18 rotates in the reverse direction, the take-up and release roller 2 rotates counterclockwise, and the cable wound around the winding surface is gradually released under its own tension or external pulling force to complete the cable release operation. The power provided by the motor 18 is stable and controllable, and the cable winding and release speed can be controlled by adjusting the speed of the motor 18, which can adapt to the different working conditions of cable winding and release in the substation equipment room. Compared with manual drive, it is more efficient and labor-saving, and can avoid the problem of uneven speed caused by manual operation, protecting the cable from damage.

[0031] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A cable winding and unwinding device for a substation equipment room, characterized in that, include: The bracket (1) is rotatably connected to the inner side of the bracket (1). The outer circumference of the take-up and release roller (2) has a number of arc-shaped sleeves (3). The number of arc-shaped sleeves (3) surrounds to form a cylindrical winding surface for winding the cable. The inner side of the arc-shaped sleeves (3) is provided with a number of arc-shaped grooves (4) arranged along the axial direction of the take-up and release roller (2). The protruding mechanism is located inside the take-up and release roller (2), and the protruding end of the protruding mechanism extends into the arc-shaped groove (4). The protruding mechanism is hydraulically driven and can extend and retract radially along the take-up and release roller (2). The fixing mechanism is provided in two sets. The two sets of fixing mechanisms are respectively set on the outside of the two axial ends of the arc sleeve (3) to fix the axial position of the arc sleeve (3), while the retaining rings at both ends restrict the axial movement of the cable.

2. The substation equipment room cable take-up and unwinding device according to claim 1, characterized in that, The outer wall of the arc-shaped sleeve (3) is provided with a rubber anti-slip layer.

3. The substation equipment room cable take-up and unwinding device according to claim 1, characterized in that, A hydraulic chamber (5) is provided inside the take-up and release roller (2) and located in the arc-shaped groove (4). A liquid storage chamber (19) connected to the hydraulic chamber (5) is provided inside the take-up and release roller (2). A three-way pipe (20) is rotatably connected to one end of the take-up and release roller (2). An inlet and an outlet are respectively provided at the end of the three-way pipe (20) away from the take-up and release roller (2). The inlet is connected to an external hydraulic pump through an oil pipe, and a valve is provided at the outlet.

4. A cable winding and unwinding device for a substation equipment room according to claim 1, characterized in that, The protruding mechanism includes a movable block (6) slidably connected inside the hydraulic cavity (5). One end of the movable block (6) extends into the arc-shaped groove (4) and is fixedly connected to an arc-shaped plate (7). The arc-shaped plate (7) is adapted to the inner wall of the arc-shaped groove (4) and the opening (21) of the hydraulic cavity (5). The bottom end of the movable block (6) is fixedly connected to a limiting plate (8). A sealing ring (9) is provided on the outside of the movable block (6). The sealing ring (9) is located between the limiting plate (8) and the opening (21) of the hydraulic cavity (5), and the sealing ring (9) is adapted to the inner wall of the hydraulic cavity (5).

5. A cable take-up and unwinding device for a substation equipment room according to claim 1, characterized in that, The fixing mechanism includes a double-arm ring (10), which is formed by a first arc-shaped arm segment (11) and a second arc-shaped arm segment (12) hinged together by a pivot (13) to form an openable ring structure. The free ends of the first arc-shaped arm segment (11) and the second arc-shaped arm segment (12) are provided with through holes (14) for connecting with bolts (17). The free end of the second arc-shaped arm segment (12) is provided with a mounting hole (15) communicating with the through hole (14). A nut (16) is fixedly installed inside the mounting hole (15). One end of the bolt (17) passes through the through hole (14) and is threadedly connected to the nut (16).

6. A cable take-up and unwinding device for a substation equipment room according to claim 5, characterized in that, The inner wall of the double-arm ring (10) is provided with an annular positioning groove, and the inner wall of the positioning groove is provided with a rubber anti-slip pad.

7. A cable take-up and unwinding device for a substation equipment room according to claim 6, characterized in that, A motor (18) is fixedly installed on the outer wall of one end of the bracket (1), and the driving end of the motor (18) is fixedly connected to one end of the take-up and release roller (2).

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