Hollow current limiting reactor with protection structure

Abstract

The utility model relates to the technical field of air-core reactors, in particular to an air-core current-limiting reactor with a protective structure. The reactor comprises a reactor body, a bottom frame and a connecting frame, the upper end and the lower end of the reactor body are each provided with a mounting frame, a plurality of supporting columns are annularly arranged between every two oppositely-arranged mounting frames, and a plurality of insulators are evenly distributed on the supporting columns; the bottom frames are arranged on the two sides of the reactor respectively and are opposite to each other, a plurality of connecting frames are sequentially arranged at the top ends of the bottom frames, sliding pipes are arranged on the connecting frames in a sliding mode, rubber discs are arranged on the sliding pipes, gears a are coaxially and rotationally arranged on the sliding pipes, threaded rods are in threaded connection with the gears a, and sealing plugs are arranged on the end faces of the threaded rods. A driving assembly is further arranged on the connecting frame and connected with the gear a in an engaged mode. The reactor is fixed on the connecting frame by reducing the air pressure between the rubber disc and the reactor, so that the stability of the reactor is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of air-core reactors, in particular to an air-core current-limiting reactor with a protection structure. Background Technique

[0002] An air-core reactor is an inductive high-voltage electrical appliance used in power systems to limit short-circuit current, reactive power compensation, phase shifting, etc. The magnetic flux forms a loop through air, so it is called an air-core reactor. It is mainly divided into air-core series reactors, air-core filter reactors, air-core shunt reactors, air-core current-limiting reactors, air-core split reactors, air-core starting reactors, etc., and is commonly used in occasions such as reactive power compensation, harmonic filtering, and current limiting.

[0003] Chinese Patent Publication No. CN218414167U discloses an air-core current-limiting reactor with a protection structure, including a reactor body and an installation support. An insulator is fixedly sleeved on the surface of the support frame, and a connection component is installed through the surface of the support frame. Through the cooperation of the clamping plate, the installation support, the vertical plate and the installation hole, the arc-shaped clamping plate can be used to contact the surface of the reactor body to improve the placement and installation stability of the reactor equipment; through the cooperation of the convex seat, the installation bolt, the locknut, the positioning block, the positioning groove and the through hole, the docking time can be effectively shortened, and the displacement resistance between multiple reactors is increased by the concave-convex matching design of the positioning groove and the through hole.

[0004] However, the above technical solution has the following deficiencies: when installing the reactor, the reactor being installed will exert uneven forces on the bottom reactor, which is likely to cause the bottom reactor to tilt and pose a threat to the personal safety of the installation workers. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems in the background technique and propose an air-core current-limiting reactor that ensures the stability of the reactor by reducing the air pressure between the rubber disc and the reactor to fix the reactor on the connection frame.

[0006] The technical solution of the utility model, an air-core current-limiting reactor with a protection structure, includes: a reactor, with an installation frame arranged at each of its upper and lower ends, a plurality of support columns are arranged in a ring between every two relatively arranged installation frames, and a plurality of insulators are evenly distributed on the support columns; a bottom frame, with one arranged on each side of the reactor, and the two bottom frames are opposite to each other. A plurality of connection frames are sequentially arranged at the top of the bottom frame. A sliding tube is slidably arranged on the connection frame, a rubber disc is arranged on the sliding tube, a gear a is coaxially rotatably arranged on the sliding tube, the gear a has a threaded hole, a threaded rod is arranged on the sliding tube, the threaded rod is threadedly connected to the gear a, a sealing plug is arranged on the end face of the threaded rod, and a driving component is also arranged on the connection frame, and the driving component is meshed with the gear a.

[0007] Preferably, the driving assembly includes a gear b rotatably arranged on the connecting frame and meshing with gear a, a driving frame coaxially arranged on gear b, and a rotating sleeve rotatably arranged on the driving frame.

[0008] Preferably, multiple groups of supporting assemblies are arranged side by side on the connecting frame. The supporting assembly includes a supporting frame arranged on the connecting frame, an adjusting frame slidably arranged on the supporting frame, and a spring with two ends respectively connected to the supporting frame and the adjusting frame.

[0009] Preferably, the connecting frame has a supporting channel, and both side surfaces of the supporting channel gradually incline from the bottom end of the supporting channel towards the center of the top end of the supporting channel.

[0010] Preferably, a support rod is slidably arranged in the supporting channel in a damping manner in opposite directions, and two limiting blocks are further arranged on the connecting frame. The two limiting blocks are respectively connected to the two support rods in a damping sliding manner.

[0011] Preferably, the bottom end of the bottom frame has a fixing groove, and fixing rods are arranged on the two fixing grooves. Bolts are threadedly connected to the fixing rods and the bottom frame.

[0012] Compared with the prior art, the utility model has the following beneficial technical effects:

[0013] When the utility model is in use, a worker places a bottom frame near the reactor, then arranges the connecting frame on the bottom frame, and makes the rubber disc abut against the reactor. Then the worker holds the rotating sleeve to drive gear b to drive gear a to rotate, and gear a drives the threaded rod to move away from the reactor, thereby reducing the air pressure between the rubber disc and the reactor, so that the rubber disc adsorbs the reactor under the action of the external air pressure. Then a new reactor is installed and the previous operation is repeated, thereby preventing the reactor from tilting during installation, and thus ensuring the personal safety of the worker. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of an embodiment of the utility model;

[0015] Figure 2 is a cross-sectional view of an embodiment of the utility model;

[0016] Figure 3 is a schematic structural diagram of the support rod, mounting plate and limiting block in an embodiment of the utility model.

[0017] Reference numerals: 1, reactor; 2, mounting frame; 3, support column; 4, bottom frame; 5, fixing rod; 6, connecting frame; 61, supporting channel; 7, sliding tube; 8, rubber disc; 9, gear a; 10, threaded rod; 11, gear b; 12, driving frame; 13, rotating sleeve; 14, supporting frame; 15, adjusting frame; 16, support rod; 17, mounting plate; 18, limiting block. Specific embodiments

[0018] Embodiment 1

[0019] As Figures 1 - 3 shown, a hollow current-limiting reactor with a protective structure proposed in this embodiment includes a reactor 1, a chassis 4, and a connecting frame 6. An installation frame 2 is provided at each of the upper and lower ends of the reactor 1. A plurality of support columns 3 are arranged in a ring between every two relatively arranged installation frames 2. A plurality of insulators are evenly distributed on the support columns 3. The chassis 4 is provided on both sides of the reactor 1, and the two chassis 4 are opposite to each other.

[0020] A plurality of connecting frames 6 are sequentially provided at the top end of the chassis 4. A sliding tube 7 is slidably provided on the connecting frame 6. A rubber disk 8 is provided on the sliding tube 7. A gear a9 is coaxially rotatably provided on the sliding tube 7. The gear a9 has a threaded hole. A threaded rod 10 is provided on the sliding tube 7. The threaded rod 10 is threadedly connected to the gear a9. A sealing plug is provided on the end face of the threaded rod 10. A driving assembly is further provided on the connecting frame 6. The driving assembly is meshed and connected with the gear a9.

[0021] The driving assembly includes a gear b11 rotatably provided on the connecting frame 6 and meshed with the gear a9, a driving frame 12 coaxially provided on the gear b11, and a rotating sleeve 13 rotatably provided on the driving frame 12. The bottom end of the chassis 4 has a fixing groove. A fixing rod 5 is provided on the two fixing grooves. The fixing rod 5 is threadedly connected to the chassis 4 with a bolt.

[0022] When using this embodiment, the worker places a chassis 4 near the reactor 1, then sets the connecting frame 6 on the chassis 4, and makes the rubber disk 8 abut against the reactor 1. Then the worker holds the rotating sleeve 13 to drive the gear b11 to drive the gear a9 to rotate. The gear a9 drives the threaded rod 10 to move away from the reactor 1, thereby reducing the air pressure between the rubber disk 8 and the reactor 1. Thus, the rubber disk 8 is adsorbed to the reactor 1 under the action of the external air pressure. Then install a new reactor 1 and repeat the previous operation, thereby preventing the reactor 1 from tilting during installation, thus ensuring the personal safety of the worker.

[0023] Embodiment 2

[0024] As Figures 1 - 3 shown, a hollow current-limiting reactor with a protective structure proposed in this embodiment, compared with Embodiment 1, in this embodiment, a plurality of support assemblies are arranged side by side on the connecting frame 6. The support assembly includes a support frame 14 provided on the connecting frame 6, an adjusting frame 15 slidably provided on the support frame 14, and a spring whose two ends are respectively connected to the support frame 14 and the adjusting frame 15.

[0025] In this embodiment, when it is difficult for a worker's height to install the new connecting frame 6 onto the connecting frame 6, the worker can pull the support frame 14 to slide on the adjusting frame 15, and then place a wooden board between the support frame 14 and the adjusting frame 15. The worker can stand on the wooden board to fixedly install the connecting frame 6, thereby improving the comfort of the worker in installing the reactor 1.

[0026] Embodiment Three

[0027] As Figures 1 - 3 shown, a kind of hollow current-limiting reactor with a protection structure proposed in this embodiment. Compared with Embodiment One, in this embodiment, the connecting frame 6 is provided with a support channel 61, and both side surfaces of the support channel 61 gradually incline from the bottom end of the support channel 61 towards the center of the top end of the support channel 61. Oppositely damped slidingly arranged in the support channel 61 are support rods 16, an installation plate 17 is arranged on the end surface of the support rod 16, and two limit blocks 18 are further arranged on the connecting frame 6. The two limit blocks 18 are respectively damped slidingly connected with the two support rods 16.

[0028] In this embodiment, when disassembling the reactor 1, the worker can pull out the support rod 16 from the connecting frame 6, and then place items such as wooden boards on the support rod 16. The installation plate 17 prevents the wooden board from moving randomly and posing a threat to the physical health of the worker. When the support rod 16 is pulled out, the cross-section of the support channel 61 is triangular, thereby improving the stability of the support channel 61 and slowing down the deformation speed of the support channel 61 under the action of external forces.

[0029] The above has described in detail the embodiments of the present utility model in conjunction with the drawings. However, the present utility model is not limited to this. Within the scope of knowledge possessed by those skilled in the art to which it pertains, various changes can be made without departing from the gist of the present utility model.

Claims

1. A hollow current limiting reactor with a protective structure, characterized in that: include: A reactor (1) is provided with a mounting frame (2) at each of the upper and lower ends, a plurality of support columns (3) are provided in a ring shape between each two mounting frames (2) arranged opposite to each other, and a plurality of insulators are evenly distributed on the support columns (3); A base frame (4) is provided on each side of the reactor (1), and the two base frames (4) are opposite to each other. A plurality of connecting frames (6) are sequentially provided on the top of the base frames (4). A sliding tube (7) is slidably provided on the connecting frame (6). A rubber disk (8) is provided on the sliding tube (7). A gear a (9) is coaxially rotatably provided on the sliding tube (7). The gear a (9) has a threaded hole. A threaded rod (10) is provided on the sliding tube (7). The threaded rod (10) is threadedly connected to the gear a (9). A sealing plug is provided on the end surface of the threaded rod (10). A driving assembly is also provided on the connecting frame (6). The driving assembly is meshedly connected to the gear a (9).

2. The hollow current limiting reactor with a protective structure according to claim 1, characterized in that: The driving assembly comprises a gear b (11) rotatably arranged on a connecting frame (6) and meshing with a gear a (9), a driving frame (12) coaxially arranged on the gear b (11), and a rotating sleeve (13) rotatably arranged on the driving frame (12).

3. The hollow current limiting reactor with a protective structure according to claim 1, characterized in that: A plurality of groups of support components are arranged side by side on the connecting frame (6), and the support components include a support frame (14) arranged on the connecting frame (6), an adjustment frame (15) slidably arranged on the support frame (14), and springs with two ends respectively connecting the support frame (14) and the adjustment frame (15).

4. The hollow current limiting reactor with a protective structure according to claim 1, characterized in that: The connecting frame (6) is provided with a supporting channel (61), and the two side surfaces of the supporting channel (61) are gradually inclined from the bottom end of the supporting channel (61) toward the center of the top end of the supporting channel (61).

5. The hollow current limiting reactor with a protective structure according to claim 4, characterized in that: Support rods (16) are arranged in a back-to-back damping sliding manner in the support channel (61), and two limit blocks (18) are also arranged on the connecting frame (6), and the two limit blocks (18) are respectively connected to the two support rods (16) in a damping sliding manner.

6. The hollow current limiting reactor with a protective structure according to claim 1, characterized in that: The bottom end of the base frame (4) is provided with a fixing groove, two fixing grooves are provided with fixing rods (5), and the fixing rods (5) are threadedly connected to the base frame (4) with bolts.

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