High-pressure glue impregnated paper capacitive bushing

Abstract

The utility model provides a high pressure glue impregnated paper capacitance type bushing which comprises a bushing body, a plurality of track plates are arranged on the bushing body in a sliding mode, installation blocks are arranged on the track plates in a sliding mode, a plurality of installation holes are formed in the installation blocks, the track plates are jointly connected with a driving gear ring in a rotating mode, and the driving gear ring is connected with the driving gear ring in a rotating mode. The multiple track plates are rotationally connected with driven gears and follow-up gears, belt wheels are arranged on the driven gears and the follow-up gears, the two belt wheels are connected through a transmission belt, the driven gears are connected with the driving gear ring in a meshed mode, and racks connected with the follow-up gears in a meshed mode are fixedly connected to the mounting blocks. According to the high-pressure impregnated paper capacitive bushing provided by the utility model, the radial positions of the plurality of mounting blocks are synchronously adjusted through the driving gear ring, so that the distance and the aperture of the mounting holes can flexibly adapt to equipment flanges of different standards, and the suitability of the mounting of the capacitive bushing is improved.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage capacitor bushing technology, specifically a high-voltage adhesive-impregnated paper capacitor bushing. Background Technology

[0002] High-voltage impregnated paper capacitive bushings are key insulation components in high-voltage electrical installations such as power transformers and GIS equipment. Their core function is to achieve efficient insulation between the conductor and the grounding part through multi-layer impregnated paper and capacitive voltage equalization structure. Traditional bushings usually adopt a fixed flange connection structure, which rigidly connects the bushing flange to the equipment flange with bolts. They rely on standardized hole spacing and diameter to achieve sealing and mechanical fixation. Although this design can meet basic requirements in conventional scenarios, its structural limitations are gradually becoming apparent in the face of the trend of diversified power equipment interfaces and complex installation environments.

[0003] In the existing technology, the hole spacing, hole diameter and distribution pattern of bushing flanges are all fixed parameters, which means that a single specification of bushing can only be adapted to a specific model of equipment. When the flange standards of equipment such as transformers and switchgear are inconsistent, special bushings need to be customized or transition connectors need to be added, which significantly increases production costs and operation and maintenance costs. In addition, split flanges or transition components are prone to risks such as sealing failure and insufficient mechanical strength, and cannot achieve quick disassembly and adjustment.

[0004] In view of this, a high-voltage adhesive-impregnated paper capacitor bushing is proposed. Utility Model Content

[0005] The purpose of this invention is to solve the problem that the flange interface of traditional high-voltage paper-impregnated capacitor bushings is fixed, resulting in poor compatibility, requiring customized or adapter parts, which increases costs and installation complexity. The invention provides a high-voltage paper-impregnated capacitor bushing.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a high-pressure adhesive-impregnated paper capacitor bushing, comprising a bushing body, multiple track plates slidably disposed on the bushing body, mounting blocks slidably disposed on each of the multiple track plates, multiple mounting holes formed on each mounting block, a drive gear ring rotatably connected to the multiple track plates, a driven gear and a follower gear rotatably connected to each of the multiple track plates, pulleys disposed on each of the driven gear and the follower gear, two pulleys being connected by a transmission belt, the driven gear meshing with the drive gear ring, a rack fixedly connected to the mounting block and meshing with the follower gear, the drive gear ring being used to simultaneously drive multiple mounting blocks to move relative to the corresponding track plates when rotating to adapt to different installation requirements.

[0007] Preferably, the bottom of the mounting block is fixedly connected to a slide bar with a T-shaped cross section, and the bottom of the track plate is provided with a movable groove that matches the size of the slide bar. The slide bar is fixedly connected to the rack, and the movable groove is provided with a channel for the rack to move.

[0008] Preferably, the bottom of the drive gear ring is fixedly connected to a rotating ring with an inverted T-shaped cross-section, and a rotating groove adapted to the size of the rotating ring is provided on each of the multiple track plates.

[0009] Preferably, the bottom height of the rotating groove is higher than the top height of the movable groove to avoid affecting the movement of the drive gear ring and the slide bar.

[0010] Preferably, four track plates are provided on the sleeve body, and the four track plates overlap each other and are spliced ​​into a ring in the initial state.

[0011] Preferably, the drive gear ring is fixedly connected to a handle that facilitates rotation of the drive gear ring during assembly and disassembly.

[0012] Preferably, a protective cover is fixedly connected to the sleeve body, and the protective cover can completely cover the track plate and the mounting block.

[0013] Compared with the prior art, this utility model has the following beneficial effects:

[0014] 1. The high-pressure adhesive-impregnated paper capacitor bushing provided by this utility model synchronously adjusts the radial position of multiple mounting blocks by driving a toothed ring, so that the mounting hole spacing and hole diameter can be flexibly adapted to equipment flanges of different standards, improving the adaptability of capacitor bushing installation, reducing the use of customized transition parts or special bushings, and reducing the variety of inventory specifications and procurement costs.

[0015] 2. The high-pressure adhesive-impregnated paper capacitor bushing provided by this utility model uses a sliding adjustment mechanism between the track plate and the mounting block, combined with the transmission of gears and racks, to achieve synchronous adjustment of all mounting hole positions with a single rotation of the drive gear ring, which greatly shortens the time for hole alignment and adjustment during installation, and also avoids manual alignment errors. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model.

[0019] Figure 2This is a detailed drawing of an embodiment of the present utility model.

[0020] Figure 3 This is a split diagram of an embodiment of the present invention.

[0021] Figure 4 This is a cross-sectional schematic diagram of a drive gear ring according to an embodiment of the present invention.

[0022] In the diagram: 1. Sleeve body, 2. Protective cover, 3. Track plate, 4. Mounting block, 41. Mounting hole, 5. Sliding bar, 6. Movable groove, 7. Drive gear ring, 8. Rotary ring, 9. Rotating groove, 10. Driven gear, 11. Follower gear, 12. Pulley, 13. Transmission belt, 14. Rack, 15. Handle. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Please see Figure 1-4 .

[0025] This utility model of a high-pressure adhesive-impregnated paper capacitor bushing includes a bushing body 1, on which multiple track plates 3 are slidably disposed, and on each of the multiple track plates 3, mounting blocks 4 are slidably disposed. Each mounting block 4 has multiple mounting holes 41. The multiple track plates 3 are rotatably connected to a drive gear ring 7. Each of the multiple track plates 3 is rotatably connected to a driven gear 10 and a follower gear 11. Each driven gear 10 and follower gear 11 is provided with a pulley 12. The two pulleys 12 are connected by a transmission belt 13. The driven gear 10 is meshed with the drive gear ring 7. A rack 14 is fixedly connected to the mounting block 4 and meshes with the follower gear 11. When the drive gear ring 7 rotates, it simultaneously drives the multiple mounting blocks 4 to move relative to the corresponding track plates 3 to adapt to different installation requirements.

[0026] Specifically, multiple track plates 3 are slidably mounted on the sleeve body 1, and mounting blocks 4 are slidably mounted on the track plates 3. The drive gear ring 7 drives the mounting blocks 4 to move synchronously through gears and pulleys 12. This configuration allows the synchronous displacement of multiple track plates 3 to be controlled by a single drive gear ring 7, solving the adaptation limitations caused by the fixed flange hole spacing in traditional methods. In other words, rotating the drive gear ring 7 can synchronously adjust the radial position of all mounting blocks 4, enabling the device to adapt to different flange standards. In addition, the gear and pulley transmission system is integrated into the track plate 3, avoiding external complex mechanisms and saving space.

[0027] The mounting block 4 is fixedly connected to a slide bar 5 with a T-shaped cross section at its bottom. The bottom of the track plate 3 is provided with a movable groove 6 that matches the size of the slide bar 5. The slide bar 5 is fixedly connected to the rack 14. The movable groove 6 is provided with a channel for the rack 14 to move. The matching design of the T-shaped slide bar 5 and the movable groove 6 provides precise linear guidance and rigid support for the movement of the mounting block 4. The rigid connection between the slide bar 5 and the rack 14 ensures that the gear torque is efficiently converted into linear thrust, eliminating the risk of jamming caused by off-center load. In addition, the closed slide groove structure simultaneously prevents the intrusion of foreign objects such as dust and oil, reduces the wear of moving parts, and extends the service life.

[0028] Secondly, the bottom of the drive gear ring 7 is fixedly connected to a rotating ring 8 with an inverted T-shaped cross section. Multiple track plates 3 are provided with rotating grooves 9 that are adapted to the size of the rotating ring 8. The nested structure of the inverted T-shaped rotating ring 8 and the rotating grooves 9 provides the drive gear ring 7 with bidirectional limiting and radial bearing capacity. This design effectively disperses the concentrated stress generated by gear meshing and avoids transmission failure caused by sway.

[0029] Furthermore, the bottom height of the rotating groove 9 is higher than the top height of the movable groove 6 to avoid affecting the movement of the drive gear ring 7 and the slider 5. The vertical layered layout of the rotating groove 9 and the movable groove 6 avoids the motion interference between the drive gear ring 7 and the slider 5 through the height difference, ensuring that the two do not interfere with each other during the adjustment process. This design achieves a compact arrangement of multi-layered structures in a limited space, which not only maintains the miniaturization of the overall device, but also reserves expansion space for the subsequent addition of sensors or locking mechanisms, thereby improving the scalability of the technical solution.

[0030] In addition, four track plates 3 are provided on the bushing body 1. The four track plates 3 overlap each other and are spliced ​​into a ring in the initial state. Specifically, the split track plates 3 reduce the stress effect of the bushing end load on the insulating core while ensuring uniform force distribution.

[0031] Furthermore, a handle 15 is fixedly connected to the drive gear ring 7 to facilitate rotation of the drive gear ring 7 during disassembly and assembly. The handle 15 makes it more convenient to rotate the drive gear ring 7.

[0032] In addition, a protective cover 2 is fixedly connected to the sleeve body 1. The protective cover 2 can completely cover the track plate 3 and the mounting block 4. The protective cover 2 can effectively isolate external pollutants such as dust, oil, and moisture from entering, and prevent precision transmission components such as gears and pulleys 12 from failing due to impurities or corrosion. In addition, the protective cover 2 can also slow down the aging effects of ultraviolet rays and chemical media on the device parts, extend the service life of the transmission system, and reduce maintenance costs.

[0033] In practice, by adding an adjustment block that can rotate around its arc center on the mounting block 4 and integrating the mounting hole 41 into the block, the device can have the ability to adjust angles in addition to radial displacement adjustment, thereby further improving the adaptability of the device.

[0034] Specifically, this invention drives the driven gear 10 to rotate through the rotation of the drive gear ring 7. The power is then transmitted to the follower gear 11 via the pulley 12 and the transmission belt 13, causing the rack 14 to move linearly. This, in turn, pushes the mounting block 4 to slide along the movable groove 6 of the track plate 3. During this process, the mounting blocks 4 of the four track plates 3 move radially under the synchronous control of the drive gear ring 7, achieving dynamic adjustment of the spacing between the mounting holes 41. The layered guide structure of the T-shaped slide bar 5 and the inverted T-shaped rotating ring 8 ensures displacement accuracy and transmission stability. The protective cover 2 isolates external contaminants from interference, ultimately enabling the sleeve flange hole position to accurately adapt to different equipment interfaces, completing rapid installation and sealing connection.

[0035] It is important to note that before operation, the lubrication status of the drive gear ring 7 and related transmission components must be confirmed to avoid dry friction damaging the gear teeth. When adjusting, the handle 15 should be rotated evenly to prevent overload from causing belt slippage or rack 14 jamming. After installation, the sealing of the protective cover 2 should be checked to ensure that no dust or moisture enters the transmission cavity. The displacement marking line of the mounting block 4 should be checked regularly to prevent displacement caused by long-term vibration. In extreme temperature or highly corrosive environments, weather-resistant protective cover 2 material should be selected and the maintenance cycle should be shortened to maintain adjustment accuracy and sealing reliability.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A high-voltage adhesive-impregnated paper capacitor bushing, comprising a bushing body (1), characterized in that: Multiple track plates (3) are slidably arranged on the sleeve body (1). Each of the multiple track plates (3) is slidably arranged with a mounting block (4). Multiple mounting holes (41) are opened on the mounting block (4). The multiple track plates (3) are rotatably connected to a drive gear ring (7). Each of the multiple track plates (3) is rotatably connected with a driven gear (10) and a follower gear (11). Each driven gear (10) and follower gear (11) is provided with a pulley (12). The two pulleys (12) are connected by a transmission belt (13). The driven gear (10) is meshed with the drive gear ring (7). A rack (14) is fixedly connected to the mounting block (4) and meshes with the follower gear (11). The drive gear ring (7) is used to drive multiple mounting blocks (4) to move relative to the corresponding track plates (3) when rotating to adapt to different installation requirements.

2. The high-voltage impregnated paper capacitor bushing as described in claim 1, characterized in that: The bottom of the mounting block (4) is fixedly connected to a slide bar (5) with a T-shaped cross section. The bottom of the track plate (3) is provided with a movable groove (6) that matches the size of the slide bar (5). The slide bar (5) is fixedly connected to the rack (14). The movable groove (6) is provided with a channel for the rack (14) to move.

3. The high-voltage impregnated paper capacitor bushing as described in claim 2, characterized in that: The bottom of the drive gear ring (7) is fixedly connected to a rotating ring (8) with an inverted T-shaped cross section, and a rotating groove (9) adapted to the size of the rotating ring (8) is opened on each of the multiple track plates (3).

4. The high-voltage impregnated paper capacitor bushing as described in claim 3, characterized in that: The bottom height of the rotating groove (9) is higher than the top height of the movable groove (6) to avoid affecting the movement of the drive gear ring (7) and the slide bar (5).

5. The high-voltage impregnated paper capacitor bushing as described in claim 4, characterized in that: Four track plates (3) are provided on the sleeve body (1), and the four track plates (3) overlap each other and are spliced ​​into a ring in the initial state.

6. The high-voltage impregnated paper capacitor bushing as described in claim 5, characterized in that: A handle (15) is fixedly connected to the drive gear ring (7) to facilitate rotation of the drive gear ring (7) during disassembly and assembly.

7. The high-voltage impregnated paper capacitor bushing as described in claim 6, characterized in that: A protective cover (2) is fixedly connected to the sleeve body (1), and the protective cover (2) can completely cover the track plate (3) and the mounting block (4).

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