A carrying trolley for replacing an internal CT of a closed busbar

Abstract

The utility model relates to CT transport equipment technical field, more particularly, relate to a kind of for the CT replacement of enclosed bus internal transport trolley, including arc bracket and the push-pull assembly of arc bracket rear end, the upper end of arc bracket is adapted with the outer diameter of CT, the lower end of arc bracket is equipped with support assembly, support assembly is structured as at least a portion of arc bracket is supported, and it can be moved relative to the inner wall of enclosed bus, so that arc bracket is displaced from the outlet position of enclosed bus to the below of CT.Compared with the mode of traditional manual drag CT, the utility model realizes the transport of CT by using transport trolley, which can effectively shorten the transport time of CT, thereby improving the transport efficiency and effectively preventing the bumping of CT and enclosed bus internal, two arc bracket can stably hold CT, effectively avoid CT damage due to personnel misoperation or unstable in the process of transportation.

Description

Technical Field

[0001] This utility model relates to the field of CT transport equipment technology, and more specifically, to a transport trolley for replacing CT scanners inside a closed busbar. Background Technology

[0002] Electricity has become an important energy source for humankind. Large-capacity generator sets have higher energy efficiency and lower energy consumption. With increasing attention paid to the global greenhouse effect and climate change, the capacity of generator sets is increasing, which is an established trend in energy construction. Ensuring the safe operation of generator sets is of great significance for meeting the ever-growing energy demand of economic and social development and ensuring energy supply and security.

[0003] To ensure the safe operation of the generating unit, current transformers (CTs) for metering and protection are usually installed inside the isolated phase busbar. In the conventional installation structure of the generator side of the traditional current transformer (CT), the current transformer (CT) needs to be carried and transported to the designed installation position by manpower. However, the designed position of the current transformer (CT) is usually far away from the end of the isolated busbar. During installation, disassembly, inspection and maintenance, small operators need to enter the isolated phase busbar and manually drag the current transformer (CT) out. This has the disadvantages of inconvenient operation, long time consumption, heavy workload of operators, poor working environment, low efficiency and safety hazards.

[0004] Therefore, improving the safety and convenience of CT replacement inside enclosed busbars is a technical problem that urgently needs to be solved. Utility Model Content

[0005] The purpose of this utility model is to provide a transport trolley for replacing CTs inside enclosed busbars, in order to solve the technical problem of how to improve the safety and convenience of replacing CTs inside enclosed busbars.

[0006] This utility model is achieved through the following technical solution: a transport trolley for replacing a CT inside a closed busbar, including an arc-shaped bracket and a push-pull assembly located at the rear end of the arc-shaped bracket. The upper end of the arc-shaped bracket is adapted to the outer diameter of the CT, and the lower end of the arc-shaped bracket is provided with a support assembly. The support assembly is configured to support at least a part of the arc-shaped bracket and is movable relative to the inner wall of the closed busbar, thereby displacing the arc-shaped bracket from the outlet position of the closed busbar to below the CT.

[0007] According to a preferred embodiment, the arc-shaped bracket includes at least two parallel and spaced-apart first arc-shaped supports, and at least two first reinforcing ribs are vertically connected between the first arc-shaped supports.

[0008] According to a preferred embodiment, the first reinforcing rib is provided in two sets, one set is connected to the end of the first arc-shaped bracket, and the other set is connected to the inner side of the first arc-shaped bracket. A first axial bracket is also provided between the set of first reinforcing ribs located on the inner side of the first arc-shaped bracket, and the first axial bracket is arranged parallel to the first reinforcing rib.

[0009] According to a preferred embodiment, the support assembly is disposed on the first reinforcing rib and / or the first axial bracket.

[0010] According to a preferred embodiment, the support assembly consists of a plurality of first rollers arranged at intervals on the first reinforcing rib and / or the first axial support.

[0011] According to a preferred embodiment, the push-pull assembly is connected to a first arc-shaped bracket located at the rear end of the arc-shaped bracket.

[0012] According to a preferred embodiment, the push-pull assembly includes a second arc-shaped bracket that is parallel and spaced apart from the first arc-shaped bracket, and at least two second reinforcing ribs are connected between the second arc-shaped bracket and the first arc-shaped bracket located at the rear end of the arc-shaped bracket.

[0013] According to a preferred embodiment, a set of second reinforcing ribs is provided and connected to the first reinforcing rib connected to the inner side of the first arc-shaped bracket. A second axial bracket is provided between the second reinforcing ribs. The second axial bracket is arranged parallel to the second reinforcing ribs and is connected to the first axial bracket.

[0014] According to a preferred embodiment, the support assembly further includes a plurality of second rollers arranged at intervals on the second reinforcing rib and / or the second axial support.

[0015] According to a preferred embodiment, the first roller and the second roller are rubber-coated bearings.

[0016] The present invention provides a technical solution for a transport trolley for replacing CT inside an enclosed busbar, which has at least the following advantages and beneficial effects: (1) Compared with the traditional manual towing method of CT, the transport trolley can effectively shorten the transport time of CT, thereby improving the transport efficiency and effectively preventing CT from colliding with the inside of the enclosed busbar, thus avoiding damage to CT; (2) By matching the upper end of the arc-shaped bracket with the outer diameter of CT, the CT can be stably supported, reducing the shaking and collision of CT during transport, and effectively avoiding damage to CT due to human error or instability during transport. Damage; while the push-pull assembly allows operators to enter the sealed busbar without having to enter, reducing the risk of the CT falling and injuring the operators during disassembly and assembly; (3) The support plane formed by the arc bracket, the first reinforcing rib and the first axial bracket can fit tightly with the outer surface of the CT, forming a multi-angle wrapping support for the CT, reducing the risk of excessive local stress on the bottom of the CT, effectively avoiding shell cracks or damage to internal components caused by concentrated support points, and improving the safety of the CT during transportation; (4) The polyurethane coated bearing has elastic buffering performance, which can absorb the vibration generated during the movement of the arc bracket, reduce the amplitude of CT transportation, and realize the protection of the CT during transportation. Attached Figure Description

[0017] Figure 1 This is a top view of the transport trolley for replacing the internal CT of the enclosed busbar provided in Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the overall structure of the transport trolley for replacing the CT inside the enclosed busbar, provided in Embodiment 2 of this utility model. Reference numerals: 100-arc bracket, 110-first arc bracket, 120-first reinforcing rib, 130-first axial bracket, 200-push-pull assembly, 210-second arc bracket, 220-second reinforcing rib, 230-second axial bracket, 300-support assembly, 310-first roller, 320-second roller. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Example 1 This embodiment provides a transport trolley for replacing CTs inside an enclosed busbar. Figure 1See the top view of the transport cart. Figure 1 As shown, the transport trolley includes an arc-shaped bracket 100 and a push-pull assembly 200 located at the rear end of the arc-shaped bracket 100.

[0020] In some embodiments of this example, the upper end of the arc-shaped bracket 100 is adapted to the outer diameter of the CT, which can stably support the CT and reduce the shaking and collision of the CT during transportation, effectively avoiding damage to the CT due to human error or instability during transportation; while the push-pull assembly 200 eliminates the need for operators to enter the sealed busbar, reducing the risk of the CT falling and injuring the operators during disassembly and assembly.

[0021] The lower end of the arc-shaped bracket 100 is provided with a support component 300. The support component 300 is configured to support at least a part of the arc-shaped bracket 100 and can move relative to the inner wall of the enclosed busbar, thereby displacing the arc-shaped bracket 100 from the outlet position of the enclosed busbar to below the CT. Compared with the traditional method of manually towing the CT, the transportation time of the CT can be effectively shortened by using a transport trolley, thereby improving the transportation efficiency and effectively preventing the CT from colliding with the inside of the enclosed busbar, thus avoiding damage to the CT.

[0022] Example 2 This embodiment, based on the technical solution provided in Embodiment 1, further explains the specific structure of the arc-shaped bracket 100: In this embodiment, see Figure 2 As shown, the arc-shaped bracket 100 includes at least two parallel and spaced first arc-shaped supports 110. At least two first reinforcing ribs 120 are vertically connected between the first arc-shaped supports 110, forming a network-like support system. This allows the CT load to be transferred to the support assembly 300 through multiple support points, evenly distributing the CT weight and preventing deformation of a single support under stress. This effectively enhances the bending resistance of the arc-shaped bracket 100 in both horizontal and vertical directions, ensuring reliable support of the CT during transport and preventing the CT from falling or the arc-shaped bracket 100 from being damaged due to insufficient structural strength. Furthermore, the at least two first arc-shaped supports 110 can be customized according to the outer diameter of the CT to ensure a tight fit between the upper end of the arc-shaped bracket 100 and the outer surface of the CT. For example, in this embodiment, the arc of the arc-shaped bracket 100 is set to 120°. This adaptability effectively secures the CT, preventing collisions between the CT and the interior of the enclosed busbar, thus avoiding damage to the CT.

[0023] Furthermore, the first reinforcing rib 120 is provided in two sets, one set is connected to the end of the first arc-shaped bracket 110, and the other set is connected to the inner side of the first arc-shaped bracket 110, forming a double-layer support system. The first reinforcing rib 120 connected to the end can withstand the radial pressure applied by the CT. A first axial bracket 130 is also provided between the set of first reinforcing ribs 120 located on the inner side of the first arc-shaped bracket 110. The first axial bracket 130 is arranged parallel to the first reinforcing rib 120. The first reinforcing rib 120 connected to the inner side, together with the first axial bracket 130, can resist axial thrust, so that when the arc-shaped bracket 100 carries the CT, the weight is evenly transferred to the support assembly 300 through the first reinforcing ribs 120 at different positions, avoiding overload deformation of a single part. In addition, the support plane formed by the arc-shaped bracket, the first reinforcing rib 120 and the first axial bracket 130 can fit closely with the outer surface of the CT, forming a multi-angle wrapping support for the CT, reducing the risk of excessive local stress on the bottom of the CT, effectively avoiding shell cracks or damage to internal components caused by concentrated support points, and improving the safety of the CT during transportation.

[0024] In this embodiment, the support assembly 300 is disposed on the first reinforcing rib 120 and / or the first axial support 130; preferably, the first reinforcing rib 120 and the first axial support 130 are both provided with the support assembly 300, and the support assembly 300 is composed of a plurality of first rollers 310 arranged at intervals on the first reinforcing rib 120 and the first axial support 130. The first rollers 310 are rubber-coated bearings, such as polyurethane rubber-coated bearings; furthermore, the polyurethane rubber-coated bearings are fixed on the first reinforcing rib 120 and the first axial support 130 by flat washers, spring washers and hexagonal nuts, etc. It should be noted that the polyurethane rubber-coated bearings have elastic buffering performance, which can absorb the vibration generated during the movement of the arc-shaped bracket 100, reduce the amplitude of CT transport, and realize the protection of CT during transport.

[0025] Example 3 This embodiment, based on the technical solution provided in Embodiment 2, further explains the structure of the push-pull assembly 200: In this embodiment, the push-pull assembly 200 is connected to the first arc-shaped bracket 110 located at the rear end of the arc-shaped bracket 100; the push-pull assembly 200 includes a second arc-shaped bracket 210 arranged parallel to and spaced apart from the first arc-shaped bracket 110, and at least two second reinforcing ribs 220 are connected between the second arc-shaped bracket 210 and the first arc-shaped bracket 110 located at the rear end of the arc-shaped bracket 100; a set of second reinforcing ribs 220 is provided and connected to the first reinforcing rib 120 connected to the inner side of the first arc-shaped bracket 110; a second axial bracket 230 is provided between the second reinforcing ribs 220, the second axial bracket 230 is arranged parallel to the second reinforcing ribs 220 and is connected to the first axial bracket 130; the support assembly 300 also includes a plurality of second rollers 320 arranged at intervals on the second reinforcing ribs 220 and / or the second axial brackets 230; the second rollers 320 are rubber-coated bearings.

[0026] The structural composition of the push-pull component 200 in this embodiment is the same as that of the embodiment with the same structure and technical effect as that of the arc bracket 100, and will not be repeated here; the difference is that the push-pull component 200 is only used as a handle and not for supporting the CT, so its thickness can be smaller than that of the arc bracket.

[0027] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A transport trolley for replacing CTs inside an enclosed busbar, characterized in that, The device includes an arc-shaped bracket (100) and a push-pull assembly (200) located at the rear end of the arc-shaped bracket (100). The upper end of the arc-shaped bracket (100) is adapted to the outer diameter of the CT, and the lower end of the arc-shaped bracket (100) is provided with a support assembly (300). The support assembly (300) is configured to support at least a part of the arc-shaped bracket (100) and is movable relative to the inner wall of the closed busbar, thereby displacing the arc-shaped bracket (100) from the outlet position of the closed busbar to below the CT.

2. The transport trolley for replacing CTs inside an enclosed busbar as described in claim 1, characterized in that, The arc-shaped bracket (100) includes at least two parallel and spaced first arc-shaped supports (110), and at least two first reinforcing ribs (120) are vertically connected between the first arc-shaped supports (110).

3. The transport trolley for replacing CTs inside an enclosed busbar as described in claim 2, characterized in that, The first reinforcing rib (120) is provided in two sets. One set is connected to the end of the first arc-shaped bracket (110), and the other set is connected to the inner side of the first arc-shaped bracket (110). A first axial bracket (130) is also provided between the set of first reinforcing ribs (120) located on the inner side of the first arc-shaped bracket (110). The first axial bracket (130) is arranged parallel to the first reinforcing rib (120).

4. The transport trolley for replacing CTs inside an enclosed busbar as described in claim 3, characterized in that, The support assembly (300) is disposed on the first reinforcing rib (120) and / or the first axial support (130).

5. The transport trolley for replacing CTs inside an enclosed busbar as described in claim 4, characterized in that, The support assembly (300) consists of a plurality of first rollers (310) arranged at intervals on the first reinforcing rib (120) and / or the first axial support (130).

6. The transport trolley for replacing CTs inside an enclosed busbar as described in claim 5, characterized in that, The push-pull assembly (200) is connected to the first arc-shaped bracket (110) located at the rear end of the arc-shaped bracket (100).

7. The transport trolley for replacing CTs inside an enclosed busbar as described in claim 6, characterized in that, The push-pull assembly (200) includes a second arc-shaped bracket (210) arranged parallel to and spaced apart from the first arc-shaped bracket (110), and at least two second reinforcing ribs (220) are connected between the second arc-shaped bracket (210) and the first arc-shaped bracket (110) located at the rear end of the arc-shaped bracket (100).

8. The transport trolley for replacing CTs inside an enclosed busbar as described in claim 7, characterized in that, The second reinforcing rib (220) is provided in a set and is connected to the first reinforcing rib (120) connected to the inner side of the first arc-shaped bracket (110). A second axial bracket (230) is provided between the second reinforcing ribs (220). The second axial bracket (230) is arranged parallel to the second reinforcing rib (220) and is connected to the first axial bracket (130).

9. The transport trolley for replacing CTs inside an enclosed busbar as described in claim 8, characterized in that, The support assembly (300) further includes a plurality of second rollers (320) spaced apart on the second reinforcing rib (220) and / or the second axial support (230).

10. The transport trolley for replacing CTs inside an enclosed busbar as described in claim 9, characterized in that, The first roller (310) and the second roller (320) are made of rubber-coated bearings.

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