A transformer bushing repair support structure

Abstract

The utility model relates to transformer maintenance technical field discloses a kind of transformer bushing maintenance support structure, including bushing main body, bushing main body is installed on transformer;Supporting assembly, supporting assembly is used to support bushing main body, supporting assembly includes installation shell, clamping plate, transmission frame, drive rod and bottom plate, bottom plate is set on working surface, installation shell is set on bottom plate, corresponding transmission frame and drive rod are fixedly connected between, and transmission frame is elastically connected between, clamping plate and corresponding transmission frame are fixedly connected, suitable space is opened in the installation shell, and transmission frame, drive rod are all slidably connected with installation shell, and adjacent drive rod is staggered between setting, by the cooperation of relevant components in supporting assembly and clamping plate, transmission frame, without excessive operation steps, and without carrying excessive auxiliary device, and due to the movable setting of clamping plate, different sizes of bushing main body are realized.

Description

Technical Field

[0001] This utility model belongs to the field of transformer maintenance technology, specifically, it relates to a support structure for transformer bushing maintenance. Background Technology

[0002] During transformer maintenance, statistics on defective parts were compiled. The results showed that bushings accounted for the largest proportion of all defects, reaching 30%. This is because high-current bushings carry a large current, and under the influence of electrodynamic forces, the internal leads and external substation busbars exert significant forces on the bushings, making them prone to defects. Additionally, due to the high temperatures experienced by the bushings, their internal sealing rings are prone to aging, potentially leading to oil leakage after prolonged operation.

[0003] A document with publication number CN214603870U discloses a transformer bushing maintenance guide rod fixing device, including a clamp, a connecting plate, a turnbuckle nut, and a support rod. The turnbuckle nut has holes at both ends; one end is screwed onto the support rod, and the other end is connected to the connecting plate to form a support foot. The connecting plate at the top of the support foot is fixed to the clamp through the opening in the clamp. This utility model allows for disassembly and construction from the top of the bushing, eliminating the need for complete bushing removal, reducing oil draining, improving transformer insulation levels, avoiding the technical risks associated with vacuuming, and providing economic benefits. It replaces large tools such as cranes and vacuum units, increasing construction safety while saving significant costs, and providing a reference for handling high-current bushing faults in indoor substations.

[0004] The clamps of the aforementioned devices are essentially flange structures, which have numerous drawbacks in practical use:

[0005] 1. The internal space of the above-mentioned device is limited after the clamps on both sides are fixed, which limits its adaptability to different specifications of sleeves and thus limits the actual application range of the device.

[0006] 2. The clamps of the above-mentioned device require manual labor and fasteners (such as bolts) to assemble between the clamps and the sleeves, which means that construction workers need to carry a lot of parts, including the auxiliary tools used for installation, thus making the use of the device inconvenient.

[0007] In view of this, this utility model is proposed. Utility Model Content

[0008] To solve the technical problem of casing maintenance and support, the basic concept of the technical solution adopted by this utility model is as follows:

[0009] A transformer bushing maintenance support structure includes a bushing body mounted on a transformer; and a support assembly for supporting the bushing body. The support assembly includes a mounting shell, a clamping plate, a transmission frame, a drive rod, and a base plate. The base plate is placed on a working surface, the mounting shell is placed on the base plate, the corresponding transmission frame is fixedly connected to the drive rod, and the transmission frames are elastically connected to each other. The clamping plate is fixedly connected to the corresponding transmission frame.

[0010] In a preferred embodiment of this utility model, a suitable space is provided inside the mounting shell, and the transmission frame and drive rod are slidably connected to the mounting shell, with adjacent drive rods being staggered.

[0011] In a preferred embodiment of this utility model, a first spring is provided between the transmission frames, the ends of the first springs are fixedly connected to the corresponding transmission frames, and a limit block is provided between the transmission frames.

[0012] In a preferred embodiment of this utility model, a space is provided between the limiting block and the inner wall of the mounting shell, and the ends of the space are respectively fixedly connected to the corresponding limiting block and the mounting shell. A trigger block is fixedly connected to the limiting block, and the trigger block is slidably connected to the mounting shell.

[0013] In a preferred embodiment of this utility model, each of the transmission frames is fixedly connected with a limiting block, the limiting block and the side wall of the limiting block are abutted together, and the transmission frame and the side wall of the limiting block are abutted together.

[0014] In a preferred embodiment of this utility model, the base plate is symmetrically provided with assembly blocks, each assembly block is fixedly connected to the base plate, and the mounting shell is disposed between the assembly blocks and connected by fasteners.

[0015] In a preferred embodiment of the present invention, each bottom corner of the base plate is provided with a fixing block, each fixing block is fixedly connected to the base plate, and each fixing block is rotatably connected to a threaded cylinder, and each threaded cylinder is threadedly connected to a lead screw.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. This transformer bushing maintenance support structure, through the cooperation of the support assembly with the clamping plate and transmission frame related components, requires no excessive operation steps and no need to carry too many auxiliary devices. Furthermore, due to the movable setting of the clamping plate, it can accommodate bushing bodies of different sizes.

[0018] 2. This transformer bushing maintenance support structure, through the combination of trigger blocks, limit blocks and other components, enables the continuous unfolding of components such as clamping plates and transmission frames. The internal components can be triggered by simple pressing to clamp the main body of the bushing. The limit blocks keep the clamping position of the clamping plate relatively centered, avoiding displacement during clamping and affecting the construction.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] In the attached diagram:

[0021] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the mounting shell and the base plate of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the mounting shell of this utility model;

[0024] Figure 4 This is a schematic diagram showing the structural breakdown between the transmission frame and the trigger block of this utility model;

[0025] Figure 5 This is a schematic diagram of the bottom structure of the base plate of this utility model.

[0026] In the figure: 1. Sleeve body; 2. Mounting shell; 3. Clamping plate; 31. Transmission frame; 32. Drive rod; 33. Limiting block; 34. First spring; 4. Trigger block; 41. Limiting block; 5. Base plate; 51. Assembly block; 6. Lead screw; 61. Threaded cylinder; 62. Fixing block. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0028] Please see Figure 1-5 A transformer bushing maintenance support structure includes a bushing body 1, which is mounted on a transformer; and a support assembly for supporting the bushing body 1. The support assembly includes a mounting shell 2, a clamping plate 3, a transmission frame 31, a drive rod 32, and a base plate 5. The base plate 5 is set on the working surface, the mounting shell 2 is set on the base plate 5, the corresponding transmission frame 31 and the drive rod 32 are fixedly connected, and the transmission frames 31 are elastically connected to each other. The clamping plate 3 is fixedly connected to the corresponding transmission frame 31.

[0029] In actual use, the drive rod 32 is first pressed inward. The drive rod 32 moves and drives the transmission frame 31 to unfold. The transmission frame 31 is limited by the other components in the support assembly. After the construction personnel bring the inner wall of the mounting shell 2 into contact with the bottom of the sleeve body 1, the components between the transmission frames 31 are triggered. The transmission frame 31 drives the clamping plate 3 to make close contact with the bottom wall of the sleeve body 1, thus achieving clamping and fixing. There are no need for too many operation steps and no need to carry too many auxiliary devices. Due to the movable setting of the clamping plate 3, it is possible to clamp and fix sleeve bodies 1 of different sizes. Then, the bottom of the base plate 5 is adjusted to a suitable position for support.

[0030] It is worth noting that this optimization scheme is aimed at the clamping and fixing support of the casing body 1. Therefore, it does not describe the subsequent maintenance of the casing body 1. Moreover, the technical issues such as the maintenance of the casing body 1 are common knowledge in this field. Construction personnel only need to follow the industry operation rules, so they will not be elaborated here.

[0031] The mounting housing 2 has a suitable space inside, and the transmission frame 31 and the drive rod 32 are slidably connected to the mounting housing 2, with adjacent drive rods 32 being staggered.

[0032] Among them, a first spring 34 is provided between the transmission frames 31, and the ends of the first spring 34 are fixedly connected to the corresponding transmission frames 31, and a limit block 41 is provided between the transmission frames 31.

[0033] Among them, a 42 is provided between the limiting block 41 and the inner wall of the mounting shell 2. The ends of the 42 are fixedly connected to the corresponding limiting block 41 and the mounting shell 2 respectively. A trigger block 4 is fixedly connected to the limiting block 41, and the trigger block 4 is slidably connected to the mounting shell 2.

[0034] Each transmission frame 31 is fixedly connected to a limiting block 33, which abuts against the side wall of the limiting block 41, and the transmission frame 31 abuts against the side wall of the limiting block 41.

[0035] Before use, the drive rods 32 on both sides are pushed inward by hand. The drive rods 32 drive the transmission frame 31 to move. As the transmission frame 31 moves towards each other, the first spring 34 is stretched. The first spring 34 generates a deformation force, which is always applied to the transmission frame 31. In the initial state, the limiting block 41 first abuts against the transmission frame 31. At this time, the limiting block 41 compresses 42, and 42 always has a deformation force. When the transmission frame 31 is unfolded, the limiting block 41 is pushed outward by the deformation force of 42, and the trigger block 4 is also pushed out simultaneously. Then, the limiting block 41 abuts against the restricting block 33, thereby restricting the position of the transmission frame 31. Furthermore, the clamping plate 3 is driven by the transmission frame 31 to be in the unfolded state. Then, the manual... When the trigger block 4 is pressed against the bottom wall of the sleeve body 1, the trigger block 4 is pushed inward, and the trigger block 4 drives the limiting block 41 to move inward. Then the limiting block 41 releases the restriction on the limiting block 33, and the transmission frame 31 is unrestricted. Through the deformation force of the first spring 34, the transmission frame 31 is pulled inward. The transmission frame 31 drives the clamping plate 3 to make close contact with the bottom wall of the sleeve body 1, thereby achieving the effect of clamping and fixing. After the limiting block 41 and the transmission frame 31 abut against each other again, the position of both sides of the transmission frame 31 is kept the same through the setting of the limiting block 41. There is no need for too many operation steps and no need to carry too many auxiliary devices. Moreover, due to the movable setting of the clamping plate 3, the sleeve body 1 of different sizes can be clamped and fixed.

[0036] With the combination of trigger block 4, limit block 41 and 42, the clamping plate 3, transmission frame 31 and other components can be continuously unfolded. The internal components can be triggered by simple pressing to clamp the sleeve body 1. The limit block 41 keeps the clamping position of the clamping plate 3 relatively centered to avoid displacement during clamping and affect the construction.

[0037] It is worth noting that the K values ​​of the first springs 34 and 42 are sufficient to ensure stable operation of the device and guarantee the stability of the clamping.

[0038] The base plate 5 is symmetrically provided with assembly blocks 51, each assembly block 51 is fixedly connected to the base plate 5, and the mounting shell 2 is disposed between the assembly blocks 51 and connected by fasteners.

[0039] By setting up the assembly block 51, the installation of the mounting shell 2 is made detachable, so that if the mounting shell 2 is damaged, only the mounting shell 2 needs to be replaced, reducing the material waste caused by replacing the whole shell.

[0040] Among them, the bottom corners of the base plate 5 are provided with fixing blocks 62, each fixing block 62 is fixedly connected to the base plate 5, and each fixing block 62 is rotatably connected to a threaded cylinder 61, and each threaded cylinder 61 is threadedly connected to a lead screw 6.

[0041] After the components on the mounting shell 2 are installed on the bottom of the sleeve body 1, the lead screw 6 is manually rotated. The lead screw 6 extends and retracts in the threaded cylinder 61 through the thread. The rotation of the threaded cylinder 61 and the fixed block 62 can adjust the corner supports of the base plate 5 separately, avoiding deviations caused by asynchronous adjustment of the lead screw 6. The adjustment is stopped after each lead screw 6 is extended and retracted to make close contact with the support surface, thus achieving stable support for the device.

[0042] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A transformer bushing maintenance support structure, characterized in that, include: Bushing body (1), bushing body (1) is installed on the transformer; The support assembly is used to support the sleeve body (1). The support assembly includes a mounting shell (2), a clamping plate (3), a transmission frame (31), a drive rod (32), and a base plate (5). The base plate (5) is set on the working surface, the mounting shell (2) is set on the base plate (5), the corresponding transmission frame (31) is fixedly connected to the drive rod (32), and the transmission frames (31) are elastically connected to each other. The clamping plate (3) is fixedly connected to the corresponding transmission frame (31).

2. The transformer bushing maintenance support structure according to claim 1, characterized in that, The mounting housing (2) has a suitable space inside, and the transmission frame (31) and the drive rod (32) are slidably connected to the mounting housing (2), and the adjacent drive rods (32) are staggered.

3. The transformer bushing maintenance support structure according to claim 1, characterized in that, A first spring (34) is provided between the transmission frames (31), and the ends of the first spring (34) are fixedly connected to the corresponding transmission frames (31), and a limit block (41) is provided between the transmission frames (31).

4. The transformer bushing maintenance support structure according to claim 3, characterized in that, A (42) is provided between the limiting block (41) and the inner wall of the mounting shell (2). The ends of (42) are fixedly connected to the corresponding limiting block (41) and mounting shell (2) respectively. A trigger block (4) is fixedly connected to the limiting block (41), and the trigger block (4) is slidably connected to the mounting shell (2).

5. The transformer bushing maintenance support structure according to claim 3, characterized in that, Each of the transmission frames (31) is fixedly connected to a limiting block (33), the limiting block (33) and the side wall of the limiting block (41) are abutted together, and the transmission frame (31) and the side wall of the limiting block (41) are abutted together.

6. The transformer bushing maintenance support structure according to claim 1, characterized in that, Assembly blocks (51) are symmetrically arranged on the base plate (5). Each assembly block (51) is fixedly connected to the base plate (5). The mounting shell (2) is arranged between the assembly blocks (51) and connected by fasteners.

7. The transformer bushing maintenance support structure according to claim 1, characterized in that, The bottom corner of the base plate (5) is provided with a fixing block (62), each fixing block (62) is fixedly connected to the base plate (5), and each fixing block (62) is rotatably connected to a threaded cylinder (61), and each threaded cylinder (61) is threadedly connected to a lead screw (6).

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