Fixture for replacing double-split bus strain insulator string of transformer substation

Abstract

The invention discloses a fixture for replacing a double-split bus strain insulator string of a transformer substation, and relates to the technical field of transformer substations. The device comprises an insulation string, a cable and connecting frames, the two ends of the insulation string are rotationally connected with the connecting frames respectively, supporting arms are installed on the two sides of each connecting frame respectively, penetrating holes are formed in the middle positions of the two connecting arms, sliding rods are slidably connected into the penetrating holes, a sleeve frame is installed at one end of each sliding rod, and the sleeve frame is connected with the cable. The connecting arm is slidably connected with the sliding rod, the sliding rod is fixedly connected with the lifting plate, the middle position of the lifting plate is rotatably connected with a threaded ring, the arc-shaped surface of the inner side of the threaded ring is in threaded connection with the threaded rod, the handle is rotated to drive the threaded ring to rotate, the lifting plate is fixedly connected with the sliding rod, and a rotating hole is formed in the middle position of the lifting plate. The threaded ring rotates, the threaded rod is fixed, so that the threaded ring ascends and descends, the threaded ring is rotationally connected to the lifting plate, and the lifting plate is driven to move up and down through supporting of the sliding block.

Description

Technical Field

[0001] The invention belongs to the technical field of transformer substations, and in particular relates to a clamp for replacing a double-split busbar tension insulator string of a transformer substation. Background Art

[0002] The double-split busbar tension insulator string is a power equipment specially designed for high voltage and high current transmission. It is composed of two or more insulator elements, mainly used to suspend the conductor and insulate the conductor from the pole tower and the ground. This design can meet the transmission requirements of high voltage and high current, while improving the safety and reliability of the line. The insulator string needs to be installed on the pole tower using a clamp for easy hanging. From the existing technology, the common clamp only uses screws to fix the cable and the insulator string, which has the risk of falling off and safety hazards. Some of them are fixed with screws and cannot be adjusted. In special scenarios, additional clamps are required. It is not suitable for multiple specifications and scenarios, and there is no protection measure on the outside of the insulator string, which is easy to cause damage to the insulator string. For this reason, we propose a clamp for replacing the double-split busbar tension insulator string of the substation. Summary of the invention

[0003] The purpose of the present invention is to provide a clamp for replacing a double-split busbar tension insulator string of a substation, so as to solve the problems that the existing insulator string clamps cannot be adjusted, are not suitable for insulator strings of various specifications, and the insulator strings have no protection.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention relates to a clamp for replacing a double-split busbar tension insulator string of a transformer substation, comprising an insulating string, a cable, and a connecting frame, wherein the two ends of the insulating string are rotatably connected to the connecting frame, and support arms are respectively installed on both sides of the connecting frame, and through holes are provided in the middle positions of two groups of the connecting arms, and a sliding rod is slidably connected in the through holes, a sleeve is installed at one end of the sliding rod, and a lifting plate is fixedly connected to the other end of the sliding rod, and the two groups of the sliding rods are respectively fixedly connected to the two ends of the lifting plate, and a rotating hole is provided in the middle position of the lifting plate, and a sliding groove is provided on the inner arc surface of the rotating hole, and a threaded ring is rotatably connected in the rotating hole, and a threaded groove is provided on the inner arc surface of the threaded ring, and a threaded rod is threadedly connected in the threaded groove, and the threaded rod passes through the lifting plate and is fixedly connected to the top surface of the connecting frame.

[0005] Preferably, the threaded ring is annular in structure, and four groups of sliders are evenly mounted on the outer arc surface of the threaded ring, one end of the slider is fixedly connected to the threaded ring, and the other end of the slider is slidably connected in the slide groove.

[0006] Preferably, a handle is installed on a side plane of the threaded ring away from the connecting frame, and the handle is fixedly connected to the threaded ring.

[0007] Preferably, the two groups of connecting frames are in a square structure, and a weight-reducing groove is provided at the center of the connecting frame. One end of the support arm is fixedly connected to the connecting frame, and the other end of the support arm is provided with a fixing hole.

[0008] Preferably, baffle rods are installed on both sides of the insulating string. The baffle rods are cylindrical in structure and threaded grooves are provided at the two end plane positions of the baffle rods. Fixing rods are inserted into the fixing holes on the two groups of support arms, and the fixing rods pass through the support arms and are threadedly connected to the threaded grooves on the baffle rods.

[0009] Preferably, the sleeve frame is an arc-shaped hollow structure, and openings are provided on the planes at both ends of the sleeve frame. A rotating shaft is installed on one side of the sleeve frame close to the connecting frame.

[0010] Preferably, the inner side of the rotating shaft is fixedly connected to the sliding rod, and the outer side of the rotating shaft is fixedly connected to the sleeve frame, and the cable is inserted into the sleeve frame.

[0011] Preferably, one side of the connecting frame is an arc-shaped structure, and a connecting hole is provided on the arc-shaped structure of the connecting frame.

[0012] The present invention has the following beneficial effects: 1. In the present invention, connecting frames are installed at both ends of the insulating string, and the connecting frames and connecting arms are used for support. A sliding rod is slidably connected to the connecting arm, and a lifting plate is fixedly connected to the sliding rod. The middle position of the lifting plate is rotatably connected to a threaded ring, and a threaded rod is threadedly connected to the inner arc surface of the threaded ring. The threaded ring is driven to rotate by rotating the handle. The threaded ring rotates because the threaded rod is fixed, so that the threaded ring is raised and lowered, and the threaded ring is rotatably connected to the lifting plate, and the lifting plate is driven to move up and down by the support of the slider, and the height of the sliding rod is adjusted, and the installation height of the cable is adjusted to improve practicality.

[0013] 2. In the present invention, baffle rods are installed on both sides of the insulating string, the baffle rods are fixedly connected to the connecting arm, and the baffle plate is threadedly connected to the baffle rods through the connecting arm via a fixed rod, which is easy to disassemble, and two sets of baffle rods are respectively placed on both sides of the insulating string to protect the insulating string and prevent collision.

[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the overall structure of a fixture for replacing a double-split busbar tension insulator string in a substation according to the present invention; Figure 2 It is a schematic diagram of the overall structure of another angle of a fixture for replacing a double-split busbar tension insulator string of a substation according to the present invention; Figure 3 It is a schematic diagram of the overall structure of a connecting frame in a fixture for replacing a double-split busbar tension insulator string of a substation according to the present invention; Figure 4 It is a structural schematic diagram of another angle connection frame in a fixture for replacing a double-split busbar tension insulator string of a substation according to the present invention; Figure 5 It is a cross-sectional view of a connecting frame structure in a fixture for replacing a double-split busbar tension insulator string of a substation according to the present invention; Figure 6 The present invention is a clamp for replacing a double-split busbar tension insulator string of a substation Figure 5 A magnified schematic diagram of the structure in the middle.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Insulating string; 2. Cable; 3. Connecting frame; 4. Support arm; 5. Perforation; 6. Sliding rod; 7. Lifting plate; 8. Rotating shaft; 9. Sleeve; 10. Rotating hole; 11. Threaded ring; 12. Sliding groove; 13. Sliding block; 14. Threaded groove; 15. Threaded rod; 16. Handle; 17. Weight reduction groove; 18. Fixing hole; 19. Stop rod; 20. Connecting hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", "lower", "all around" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0020] See also Figure 1-6 As shown, the present invention is a clamp for replacing a double-split busbar tension insulator string of a substation, comprising an insulating string 1, a cable 2, and a connecting frame 3. The two ends of the insulating string 1 are rotatably connected to the connecting frame 3, and support arms 4 are respectively installed on both sides of the connecting frame 3. A through hole 5 is opened in the middle position of the two groups of connecting arms, and a sliding rod 6 is slidably connected in the through hole 5. A sleeve frame 9 is installed at one end of the sliding rod 6, and a lifting plate 7 is fixedly connected to the other end of the sliding rod 6. The two groups of sliding rods 6 are respectively fixedly connected to the two ends of the lifting plate 7, and a rotating hole 10 is opened in the middle position of the lifting plate 7. A sliding groove 12 is opened on the inner arc surface of the rotating hole 10. A threaded ring 11 is rotatably connected in the rotating hole 10, and a threaded groove 14 is opened on the inner arc surface of the threaded ring 11. A threaded rod 15 is threadedly connected in the threaded groove 14. The threaded rod 15 passes through the lifting plate 7 and is fixedly connected to the top surface of the connecting frame 3. The threaded ring 11 is annular in structure, and the outer arc of the threaded ring 11 Four groups of sliders 13 are evenly installed on the shaped surface, one end of the slider 13 is fixedly connected to the threaded ring 11, and the other end of the slider 13 is slidably connected in the slide groove 12, a handle 16 is installed on the side plane of the threaded ring 11 away from the connecting frame 3, the handle 16 is fixedly connected to the threaded ring 11, and the two ends of the insulating string 1 are installed with connecting frames 3, which are supported by the connecting frame 3 and the connecting arm, and the connecting arm is slidably connected with a slide rod 6, and the slide rod 6 is fixedly connected with a lifting plate 7, and the middle position of the lifting plate 7 is rotatably connected to the threaded ring 11, and a threaded rod 15 is threadedly connected on the inner arc surface of the threaded ring 11. Rotating the handle 16 drives the threaded ring 11 to rotate. The threaded ring 11 rotates because the threaded rod 15 is fixed, so that the threaded ring 11 is lifted and lowered, and the threaded ring 11 is rotatably connected to the lifting plate 7, and the support of the slider 13 drives the lifting plate 7 to move up and down, adjust the height of the slide rod 6, adjust the installation height of the cable 2, and improve practicality.

[0021] Among them, the two groups of connecting frames 3 are of square structure, and a weight-reducing groove 17 is provided at the center of the connecting frame 3, one end of the support arm 4 is fixedly connected to the connecting frame 3, and a fixing hole 18 is provided at the other end of the support arm 4, and a blocking rod 19 is installed on both sides of the insulating string 1, and the blocking rod 19 is of cylindrical structure, and a thread groove 14 is provided at the plane position of both ends of the blocking rod 19, and a fixing rod is inserted into the fixing hole 18 on the two groups of support arms 4, and the fixing rod passes through the support arm 4 and is threadedly connected to the thread groove 14 on the blocking rod 19, and the sleeve 9 is of an arc-shaped hollow structure, and openings are provided on the planes at both ends of the sleeve 9 A rotating shaft 8 is installed on one side of the sleeve 9 close to the connecting frame 3, the inner side of the rotating shaft 8 is fixedly connected to the sliding rod 6, and the outer side of the rotating shaft 8 is fixedly connected to the sleeve 9, the sleeve 9 is inserted with a cable 2, one side of the connecting frame 3 is an arc-shaped structure, and a connecting hole is opened on the arc-shaped structure of the connecting frame 3, and baffles 19 are installed on both sides of the insulating string 1, the baffles 19 are fixedly connected to the connecting arm, and the baffle is threadedly connected to the baffle 19 through the fixing rod through the connecting arm, which is easy to disassemble, and two sets of baffles 19 are respectively placed on both sides of the insulating string 1 to protect the insulating string 1 and prevent collision.

[0022] The following is the working principle of the present invention: See also Figure 1-6 As shown, the present invention is a clamp for replacing a double-split busbar tension insulator string of a substation, and the method of using the clamp is as follows: a connecting frame 3 is installed at both ends of the insulation string 1, and the connecting frame 3 and the connecting arm are used for support, a sliding rod 6 is slidably connected to the connecting arm, and a lifting plate 7 is fixedly connected to the sliding rod 6, and a threaded ring 11 is rotatably connected to the middle position of the lifting plate 7, and a threaded rod 15 is threadedly connected to the inner arc surface of the threaded ring 11, and a handle 16 is turned to drive the threaded ring 11 to rotate, and the threaded ring 11 rotates because the threaded rod 15 is fixed, so that The threaded ring 11 can be raised and lowered, and the threaded ring 11 is rotatably connected to the lifting plate 7. The lifting plate 7 is driven up and down by the support of the slider 13, the height of the slide bar 6 is adjusted, and the installation height of the cable 2 is adjusted to improve practicality. Baffle rods 19 are installed on both sides of the insulating string 1. The baffle rods 19 are fixedly connected to the connecting arm, and the baffle is threadedly connected to the baffle rod 19 through the connecting arm through the fixing rod, which is easy to disassemble, and two sets of baffle rods 19 are respectively placed on both sides of the insulating string 1 to protect the insulating string 1 and prevent collision.

[0023] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0024] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A clamp for replacing a double-split busbar tension insulator string in a substation, comprising an insulation string (1), a cable (2), and a connecting frame (3), characterized in that: The two ends of the insulating string (1) are rotatably connected to a connecting frame (3), and support arms (4) are installed on both sides of the connecting frame (3). A through hole (5) is provided in the middle position of the two groups of connecting arms. A sliding rod (6) is slidably connected in the through hole (5). A sleeve frame (9) is installed at one end of the sliding rod (6), and a lifting plate (7) is fixedly connected to the other end of the sliding rod (6). The two groups of sliding rods (6) are fixedly connected to the two ends of the lifting plate (7). A rotating hole (10) is provided in the middle position of the lifting plate (7). A sliding groove (12) is provided on the inner arc surface of the rotating hole (10). A threaded ring (11) is rotatably connected in the rotating hole (10). A threaded groove (14) is provided on the inner arc surface of the threaded ring (11). A threaded rod (15) is threadedly connected in the threaded groove (14). The threaded rod (15) passes through the lifting plate (7) and is fixedly connected to the top surface of the connecting frame (3).

2. A fixture for replacing a substation double-split busbar tension insulator string according to claim 1, characterized in that: The threaded ring (11) is annular in structure, and four groups of sliders (13) are evenly mounted on the outer arc surface of the threaded ring (11), one end of the slider (13) is fixedly connected to the threaded ring (11), and the other end of the slider (13) is slidably connected to the slide groove (12).

3. A fixture for replacing a substation double-split busbar tension insulator string according to claim 1, characterized in that: A handle (16) is mounted on a plane of a side of the threaded ring (11) away from the connecting frame (3), and the handle (16) is fixedly connected to the threaded ring (11).

4. A fixture for replacing a substation double-split busbar tension insulator string according to claim 1, characterized in that: The two groups of connecting frames (3) are of square structure, and a weight-reducing groove (17) is provided at the center of the connecting frame (3); one end of the supporting arm (4) is fixedly connected to the connecting frame (3), and the other end of the supporting arm (4) is provided with a fixing hole (18).

5. A fixture for replacing a substation double-split busbar tension insulator string according to claim 1, characterized in that: Block rods (19) are installed on both sides of the insulating string (1), the block rods (19) are cylindrical in structure, and thread grooves (14) are provided at the plane positions at both ends of the block rods (19), and fixing rods are inserted into the fixing holes (18) on the two groups of support arms (4), and the fixing rods pass through the support arms (4) and are threadedly connected to the thread grooves (14) on the block rods (19).

6. A fixture for replacing a substation double-split busbar tension insulator string according to claim 1, characterized in that: The sleeve frame (9) is an arc-shaped hollow structure, and openings are provided on the planes at both ends of the sleeve frame (9). A rotating shaft (8) is installed on one side of the sleeve frame (9) close to the connecting frame (3).

7. A fixture for replacing a double-split busbar tension insulator string in a substation according to claim 6, characterized in that: The inner side of the rotating shaft (8) is fixedly connected to the sliding rod (6), and the outer side of the rotating shaft (8) is fixedly connected to the sleeve frame (9), and the cable (2) is inserted into the sleeve frame (9).

8. The fixture for replacing a substation double-split busbar tension insulator string according to claim 1, characterized in that: One side of the connecting frame (3) is in the form of an arc-shaped structure, and a connecting hole (20) is provided on the arc-shaped structure of the connecting frame (3).

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