Device for disconnecting and connecting drainage wire in live-line state of transformer substation

Abstract

The invention relates to the technical field of industrial automation, in particular to a transformer substation live-line drainage wire disconnecting and connecting device which comprises a supporting column, a sliding rail frame arranged on the end face of the supporting column, a sliding base movably arranged outside the sliding rail frame, a vertical plate screwed to one end of the sliding rail frame and a bolt sleeve arranged on the end face of the vertical plate. The device comprises a sliding base, a bearing plate arranged on the end face of the sliding base, an electric wrench detachably connected with the bearing plate, a floating connector arranged at the output end of the electric wrench and a nut sleeve arranged at one end of the floating connector. Workers are prevented from contacting with electrified bodies, operation risks are reduced, working efficiency is improved, operation difficulty is reduced, power supply reliability is improved, and safe and reliable operation of a power grid is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of industrial automation technology, and in particular to a device for disconnecting and connecting live feed lines in a substation. Background Technology

[0002] In power supply systems, substations are the hubs connecting various power grids, organically linking different levels of grids together. Their safety and stability directly affect the safety of the entire power grid system. Equipment and components within the substation need to undergo periodic pre-testing and scheduled maintenance according to the "Power Equipment Maintenance and Testing Regulations." Traditional maintenance strategies primarily rely on power outages. During power outages, grid risks increase dramatically, sometimes even making it impossible to conduct equipment pre-testing and scheduled maintenance during power outages, resulting in a high percentage of overdue maintenance. This leads to a situation where improving equipment health and eliminating grid risks become mutually exclusive, highlighting the growing contradiction between maintenance strategies and grid risks. (Bus-side disconnecting switches.)

[0003] However, due to the difficulty of power outages on the busbars, which require the shutdown of both the busbars and circuit breakers (or lines), the outages are characterized by a large scope, short duration, and numerous switching operations. This leads to a significant increase in risks to the power grid and operations during power outage maintenance. Due to difficulties in coordinating power outages, the busbar-side disconnect switches often cannot be maintained and repaired on schedule. As a result, the disconnect switches become dilapidated and develop defects such as failure to operate, leading to inadequate maintenance of substation equipment, high operational risks, and difficulty in ensuring power supply reliability, which seriously affects the safe and reliable operation of the power grid. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the above problems, the present invention is proposed.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a device for disconnecting and connecting live feed lines in a substation, comprising: a support column; a slide rail frame disposed on the end face of the support column; a slide block movably disposed outside the slide rail frame; a vertical plate screwed to one end of the slide rail frame; and a bolt sleeve disposed on the end face of the vertical plate; and a bearing plate disposed on the end face of the slide block; an electric wrench detachably connected to the bearing plate; a floating joint disposed on the output end of the electric wrench; and a nut sleeve disposed on one end of the floating joint.

[0007] As a preferred embodiment of the device for disconnecting and connecting live feed lines in a substation according to the present invention, the other end of the support column is provided with a connecting flange, the other end of the slide rail is provided with a cylinder, and the output end of the cylinder is connected to the outer wall of the slide block.

[0008] As a preferred embodiment of the device for disconnecting and connecting live lead wires in a substation according to the present invention, the outer wall of the bearing plate is provided with a first sliding groove, and the outer wall of the bearing plate is provided with a bearing assembly. The bearing assembly includes a bearing seat that can slide and cooperate with the first sliding groove, and the end face of the bearing seat is provided with a receiving groove for placing the electric wrench.

[0009] As a preferred embodiment of the device for disconnecting and connecting live feed lines in a substation according to the present invention, the outer wall of the bearing plate is further provided with a movable cavity, the end face of the bearing seat is screwed with a limiting block that can move within the movable cavity, and the outer wall of the limiting block is provided with a limiting channel, wherein a first slot and a second slot are respectively provided in the limiting channel.

[0010] As a preferred embodiment of the device for disconnecting and connecting live feed lines in a substation according to the present invention, an elastic element is provided between the inner wall of the movable cavity and the limiting block, and the elastic element is a compression spring.

[0011] As a preferred embodiment of the device for disconnecting and connecting live feed lines in a substation according to the present invention, the bearing assembly further includes a limiting rod that is movably connected to the bearing plate, and a limiting slide rod that can slide and cooperate with the limiting channel is provided on one side of the outer wall of the limiting rod.

[0012] As a preferred embodiment of the device for disconnecting and connecting live lead lines in a substation according to the present invention, the bearing plate is provided with a second sliding groove and a limiting component is provided in the bearing plate. The limiting component includes a clamping slide rod that can be slidably connected to the second sliding groove, and one end of the clamping slide rod extends to the outside of the bearing plate and is screwed with a clamping ring. The outer wall of the clamping slide rod is provided with a transmission groove.

[0013] As a preferred embodiment of the device for disconnecting and connecting live feed lines in a substation according to the present invention, wherein: the outer wall of the bearing plate passes through the first sliding groove and is provided with a linkage frame, and the inner wall of the linkage frame is provided with an output tooth groove, and the outer wall of the linkage frame is screwed with a handle.

[0014] As a preferred embodiment of the device for disconnecting and connecting live feed lines in a substation according to the present invention, the limiting component further includes a worm gear movably disposed within a support plate and capable of meshing with the transmission groove. A worm is rotatably disposed within the support plate and capable of meshing with the worm gear, and one end of the worm passes through the support plate and is fitted with a transmission gear, which meshes with the output tooth groove.

[0015] As a preferred embodiment of the device for disconnecting and connecting live feed lines in a substation according to the present invention, wherein: an abutment block is installed on the outer wall of the bearing plate, and a third sliding groove is provided on the outer wall of the abutment block, which can slide and engage with the clamping slide rod.

[0016] The beneficial effects of this invention are as follows: This invention is particularly useful for disconnecting and connecting the disconnecting switch and the three-phase busbar lead-out line in substations, enabling live disassembly and assembly, avoiding contact between workers and live parts, reducing operational risks, improving work efficiency, reducing operational difficulty, improving power supply reliability, and ensuring the safe and reliable operation of the power grid. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the support plate structure in this invention.

[0020] Figure 3 This is a schematic diagram of the support plate structure in this invention from another perspective.

[0021] Figure 4 This is a schematic diagram of the limiting component structure in this invention. Detailed Implementation

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0025] Example 1

[0026] Reference Figures 1-4 This is the first embodiment of the present invention, which provides a device for disconnecting and connecting live lead wires in a substation. The present invention is particularly useful for disconnecting and connecting the disconnecting switch and the three-phase lead wires of the busbar in a substation, enabling live disassembly and assembly, avoiding contact between workers and live parts, reducing operational risks, improving work efficiency, reducing operational difficulty, improving power supply reliability, and ensuring the safe and reliable operation of the power grid.

[0027] Specifically, the support column 100 includes a slide rail frame 101 located on the end face of the support column 100, a slide block 102 movably located outside the slide rail frame 101, a vertical plate 103 screwed to one end of the slide rail frame 101, and a bolt sleeve 103a located on the end face of the vertical plate 103; a bearing plate 200 located on the end face of the slide block 102, an electric wrench 201 detachably connected to the bearing plate 200, a floating connector 201a located at the output end of the electric wrench 201, and a nut sleeve 201a-1 located at one end of the floating connector 201a.

[0028] Preferably, the other end of the support column 100 is provided with a connecting flange 100a, the other end of the slide rail frame 101 is provided with a cylinder 102a, and the output end of the cylinder 102a is connected to the outer wall of the slide block 102.

[0029] The slide rail 101 is used to provide horizontal displacement for the slide block 102, while the cylinder 102a is a cylindrical metal component that guides the piston to perform linear reciprocating motion within the cylinder. The support column 100 is used in conjunction with the robotic arm, and the connecting flange 100a is used to connect the support column 100 and the robotic arm. All of the above contents have been fully described in the prior art and need not be elaborated further here.

[0030] In summary, during the installation of the drain line, the staff remotely operates the robotic arm to connect with the connecting flange 100a. The entire assembly is then pulled to the appropriate position on the drain plate by the robotic arm traction device. After visually identifying the bolt hole position, the robotic arm pulls the bolt through the bolt hole, and the cylinder inlets air to clamp the bolt, ensuring the bolt and nut are tightly fitted. The staff then remotely controls the electric wrench, and the floating connector 201a automatically locates the nut position. Through the rotation of the electric wrench 201, the bolt and nut are tightened, completing the work.

[0031] During the process of dismantling the drain line, the staff remotely operated the robotic arm and the 100a connecting flange to self-check. The robotic arm was pulled to the appropriate position of the drain line by the traction device. After visually identifying the position of the bolt, the robotic arm was pulled to the precise position and the cylinder was used to clamp the bolt and nut. The staff then remotely controlled the electric wrench. The floating joint automatically found the position of the nut and separated the bolt and nut by the reverse rotation of the electric wrench. The work was completed.

[0032] Example 2

[0033] Reference Figures 1-4 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that a limiting method for the carrier plate 200 is provided.

[0034] Specifically, the outer wall of the support plate 200 is provided with a first sliding groove 200a, and the outer wall of the support plate 200 is provided with a support assembly 300. The support assembly 300 includes a support seat 301 that can slide and cooperate with the first sliding groove 200a, and the end face of the support seat 301 is provided with a receiving groove 301a for placing the electric wrench 201. The support seat 301 can move vertically within the stroke of the first sliding groove 200a, and the receiving groove 301a can improve the stability of the electric wrench 201 when it is placed on the support seat 301.

[0035] The outer wall of the support plate 200 is also provided with a movable cavity 200b. The end face of the support seat 301 is screwed with a limiting block 302 that can move in the movable cavity 200b. The outer wall of the limiting block 302 is provided with a limiting channel 302a. The limiting channel 302a is provided with a first slot and a second slot respectively. The first slot and the second slot are located at the two ends of the limiting channel 302a respectively.

[0036] An elastic element 303b is provided between the inner wall of the active cavity 200b and the limiting block 302, and the elastic element 303b is a compression spring; wherein, the elastic element 303b is used to provide the limiting block 302 to reset after being pressed.

[0037] The support assembly 300 also includes a limiting rod 303 that is movably connected to the support plate 200, and a limiting slide rod 303a that can slide and cooperate with the limiting channel 302a is provided on one side of the outer wall of the limiting rod 303; wherein, the connection between the limiting rod 303 and the support plate 200 is made through a rotating shaft.

[0038] In summary, in the initial state, the limiting slide bar 303a is located in the first slot. When the electric wrench 201 is placed on the support seat 301, pressing the electric wrench 201 downwards causes the support seat 301 to move vertically downwards on the first slide groove 200a. At this time, the elastic element 303b is subjected to force, and the limiting block 302 moves downwards with the support seat 301. The limiting slide bar 303a will slide out of the first slot and slide to the second slot within the stroke of the limiting channel 302a, thus achieving the limiting. When the support seat 301 needs to be raised, pressing the support seat 301 again will cause the limiting slide bar 303a to slide out of the second slot and slide from the other side of the limiting channel 302a back into the first slot to come to rest.

[0039] Example 3

[0040] Reference Figures 1-4This is the third embodiment of the present invention. This embodiment is based on the previous embodiment, except that when the support seat 301 moves downward, it will move the linkage clamping ring 401a to complete the clamping of the electric wrench 201.

[0041] Specifically, a second sliding groove 200c is provided in the support plate 200, and a limiting component 400 is provided in the support plate 200. The limiting component 400 includes a clamping slide rod 401 that can be slidably connected to the second sliding groove 200c. One end of the clamping slide rod 401 extends to the outside of the support plate 200 and is screwed with a clamping ring 401a. A transmission groove 401b is provided on the outer wall of the clamping slide rod 401. A rubber pad for increasing the friction between the clamping ring 401a and the electric wrench 201 is provided on the outside of the clamping ring 401a.

[0042] The outer wall of the bearing plate 200 passes through the first sliding groove 200a and is provided with a linkage frame 301b. The inner wall of the linkage frame 301b is provided with an output tooth groove 301b-11, and the outer wall of the linkage frame 301b is screwed with a handle 301b-1. The handle 301b-1 is used to control the linkage frame 301b to move.

[0043] The limiting assembly 400 also includes a worm gear 402 movably disposed within the support plate 200 and capable of meshing with the transmission groove 401b. A worm 403 is rotatably disposed within the support plate 200 and capable of meshing with the worm gear 402. One end of the worm 403 passes through the support plate 200 and is fitted with a transmission gear 403a. The transmission gear 403a meshes with the output tooth groove 301b-11. When the worm 403 rotates, the worm gear 402 rotates, thereby causing the clamping slide bar 401 to move.

[0044] The outer wall of the support plate 200 is equipped with an abutment block 404, and the outer wall of the abutment block 404 is provided with a third sliding groove 404c that can slide with the clamping slide rod 401. The abutment block 404 is used to increase the movement stroke of the clamping slide rod 401 and prevent the clamping slide rod 401 from being displaced excessively outside the support plate 200.

[0045] In summary, based on Embodiment 2, when the electric wrench 201 is placed on the support 301, the handle 301b-1 drives the linkage frame 301b to move with the support 301. At this time, the worm 403 rotates due to the meshing of the output tooth groove 301b-11 with the transmission gear 403a. The rotation of the worm 403 will cause the two clamping rings 401a to move closer to each other through the meshing of the worm wheel 402 and the meshing of the worm wheel 402 with the transmission groove 401ab. That is, by fixing the support 301, the electric wrench 201 is clamped synchronously.

[0046] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0047] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0048] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for disconnecting and connecting live feed lines in a substation, characterized in that: include, The support column (100), a slide rail frame (101) disposed on the end face of the support column (100), a slide block (102) movably disposed outside the slide rail frame (101), a vertical plate (103) screwed to one end of the slide rail frame (101), and a bolt sleeve (103a) disposed on the end face of the vertical plate (103); and, A bearing plate (200) is provided on the end face of the slide (102), an electric wrench (201) detachably connected to the bearing plate (200), a floating connector (201a) provided on the output end of the electric wrench (201), and a nut sleeve (201a-1) provided on one end of the floating connector (201a).

2. The device for disconnecting and connecting live feeders in a substation as described in claim 1, characterized in that: The other end of the support column (100) is provided with a connecting flange (100a), and the other end of the slide rail frame (101) is provided with a cylinder (102a), and the output end of the cylinder (102a) is connected to the outer wall of the slide block (102).

3. The device for disconnecting and connecting live feed lines in a substation as described in claim 1, characterized in that: The outer wall of the support plate (200) is provided with a first sliding groove (200a), and the outer wall of the support plate (200) is provided with a support assembly (300). The support assembly (300) includes a support seat (301) that can slide with the first sliding groove (200a), and the end face of the support seat (301) is provided with a receiving groove (301a) for placing the electric wrench (201).

4. The device for disconnecting and connecting live feeders in a substation as described in claim 3, characterized in that: The outer wall of the support plate (200) is also provided with a movable cavity (200b). The end face of the support seat (301) is screwed with a limiting block (302) that can move in the movable cavity (200b). The outer wall of the limiting block (302) is provided with a limiting channel (302a). The limiting channel (302a) is provided with a first slot and a second slot respectively.

5. The device for disconnecting and connecting live feeders in a substation as described in claim 4, characterized in that: An elastic element (303b) is provided between the inner wall of the movable cavity (200b) and the limiting block (302), and the elastic element (303b) is a compression spring.

6. The device for disconnecting and connecting live feeders in a substation as described in claim 5, characterized in that: The bearing assembly (300) further includes a limiting rod (303) that is movably connected to the bearing plate (200), and a limiting slide rod (303a) is provided on one side of the outer wall of the limiting rod (303) that can slide with the limiting channel (302a).

7. The device for disconnecting and connecting live feeders in a substation as described in claim 6, characterized in that: The support plate (200) has a second sliding groove (200c) and a limiting component (400) is provided in the support plate (200). The limiting component (400) includes a clamping slide rod (401) that can be slidably connected to the second sliding groove (200c). One end of the clamping slide rod (401) extends to the outside of the support plate (200) and is screwed with a clamping ring (401a). The outer wall of the clamping slide rod (401) has a transmission groove (401b).

8. The device for disconnecting and connecting live feeders in a substation as described in claim 7, characterized in that: The outer wall of the bearing plate (200) passes through the first slide groove (200a) and is provided with a linkage frame (301b). The inner wall of the linkage frame (301b) is provided with an output tooth groove (301b-11), and a handle (301b-1) is screwed onto the outer wall of the linkage frame (301b).

9. The device for disconnecting and connecting live feeders in a substation as described in claim 8, characterized in that: The limiting component (400) also includes a worm gear (402) movably disposed within the support plate (200) and capable of meshing with the transmission groove (401b). A worm (403) rotatably disposed within the support plate (200) and capable of meshing with the worm gear (402) is provided. One end of the worm (403) passes through the support plate (200) and is fitted with a transmission gear (403a). The transmission gear (403a) meshes with the output tooth groove (301b-11).

10. The device for disconnecting and connecting live feeders in a substation as described in claim 9, characterized in that: The outer wall of the bearing plate (200) is equipped with an abutment block (404), and the outer wall of the abutment block (404) is provided with a third sliding groove (404c) that can slide with the clamping slide rod (401).

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