Construction method and device for grounding resistance-reducing grounding grid of wind turbine generator
By using the guide frame and adjustment components together, the grounding electrode is ensured to be centered in the slot. The conductive powder medium is filled by the tamping component, which solves the problem of uneven conductive path caused by eccentric insertion of the grounding electrode and improves the current dissipation effect and safety of the grounding grid.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-10
- Publication Date
- 2026-04-21
AI Technical Summary
In existing technologies, it is difficult to keep the grounding electrode of a wind turbine in a central position when it is inserted into the slot, resulting in uneven conductive path, which affects the current dissipation effect and resistance reduction efficiency of the grounding grid, and also poses safety hazards.
A guide frame and adjustment assembly are used to ensure the center position of the grounding electrode insertion hole, and a tamping assembly is used to fill the conductive powder medium to ensure uniform distribution. This includes the coordinated use of the guide frame's support sleeve, guide sleeve, adjustment assembly, and tamping assembly.
This achieves uniform filling of the gap between the grounding electrode and the inner wall of the slot, improving the grounding effect and resistance reduction efficiency, and enhancing the stability and safety of the wind turbine grounding system.
Smart Images
Figure CN121906191A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of wind power generation technology, specifically a method and device for constructing a grounding grid for wind turbine generators to reduce grounding resistance. Background Technology
[0002] As an important form of clean and renewable energy, wind power is expanding its development to high-altitude and plateau regions where wind energy resources are more abundant. These regions have significant development advantages due to their high wind speeds and stability. However, the unique geological conditions of plateau regions—such as thin soil, high resistivity, and loose gravel layers covering the surface—also pose serious challenges to the safe and stable operation of wind turbines, with reliable grounding being one of the core problems.
[0003] In wind turbine engineering, a ring-shaped trench is typically excavated around the wind turbine foundation. Holes are drilled within the trench, and vertical grounding electrodes are installed. This is then filled with a highly conductive medium, such as graphite powder. Finally, multiple grounding electrodes are electrically connected to form a resistance-reducing grounding grid. In current construction techniques, especially in the crucial step of inserting the grounding electrodes into pre-drilled slots, manual operation or using simple tools by construction workers is commonly employed. This method has significant drawbacks: First, due to the lack of effective positioning and guiding methods, it is difficult to ensure that the slender grounding electrode remains centered in the slot throughout the insertion process. If the grounding electrode becomes eccentric within the slot, it will directly lead to uneven gaps between its perimeter and the hole wall. Filling the conductive powder in this state will result in insufficient compaction on the narrow sides and loose accumulation on the wide sides, ultimately causing uneven and discontinuous conductive paths in the medium surrounding the grounding electrode. This not only severely affects the current dissipation and resistance-reducing efficiency of the grounding grid, leading to unstable grounding resistance and failure to meet design standards, but may also pose a danger under impact from lightning currents due to poor local contact or medium voids.
[0004] Therefore, the present invention provides a method and apparatus for constructing a grounding grid for reducing the grounding resistance of a wind turbine. Summary of the Invention
[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0006] The technical solution adopted by this invention to solve its technical problem is: a wind turbine grounding resistance reduction grounding grid construction device, comprising: The guide frame includes a pair of support sleeves spaced apart vertically, which are fixedly connected by a fixing plate. Support plates are symmetrically arranged on the outer sides of the two support sleeves, and a guide sleeve is provided at the center of each support sleeve to guide the grounding electrode to the center position of the insertion slot. An adjustment component is provided on the support sleeve and is used to adjust the support plate to be closer to or further away from the side wall of the support sleeve so that the support plate can abut against the inner wall of the grounding electrode mounting hole groove. A tamping component is disposed inside the support sleeve and is used to tamp the conductive powder medium filled in the gap between the grounding electrode and the inner wall of the slot.
[0007] Preferably, the adjusting assembly includes a support rod fixed to the outer wall of the guide sleeve, a movable sleeve rod sleeved at the end of the support rod away from the guide sleeve, a support plate fixed to the end of the movable sleeve rod, and the movable sleeve rod slidably disposed in a through hole one opened on the support sleeve; a through hole two is opened on the support sleeve and above the movable sleeve rod, an internally threaded sleeve is rotatably installed in the through hole two, a threaded rod is threadedly connected to the internally threaded sleeve, and the end of the threaded rod is fixedly connected to the support plate; a helical gear is fixed at the end of the internally threaded sleeve facing the guide sleeve, and a gear ring is meshed above the helical gear.
[0008] Preferably, an annular track is fixed above the inner wall of the support sleeve, an annular plate is movably arranged in the middle of the annular track, the toothed ring is fixed below the annular plate, and a vertical rod is fixed at the top of the annular plate.
[0009] Preferably, the tamping assembly includes a movable frame disposed on the support rod, and a tamping ring is mounted on the bottom of the movable frame via a connecting rod.
[0010] Preferably, the movable frame is configured as a rectangular frame and fitted onto the support rod; the movable frame has a movable cavity inside, and movable rods are symmetrically arranged along its length inside the movable cavity. A spring for resetting the movable rods is also fixed inside the movable cavity; multiple protrusions are evenly distributed on the opposite sidewalls of the movable rods on both sides; the top end of the connecting rod extends movably into the movable cavity and is fixed with a movable block, the movable block has a cavity in the middle, and a triangular block is fixed at the top of the cavity; a crossbar is fixed to the sidewall of one movable rod, the end of the crossbar extends into the cavity, and a triangular block is fixed at its top.
[0011] Preferably, a second spring is fixed between the movable block and the inner wall of the movable cavity.
[0012] Preferably, rollers are rotatably mounted on the side wall of the support plate.
[0013] Preferably, the top of the upper support sleeve is fixed with a support frame for connecting the grounding meter.
[0014] Preferably, a fixing block is fixed on the side wall of the guide sleeve, and the support rod is fixed on the fixing block; limit grooves are opened on both sides of the fixing block, and L-shaped plates are symmetrically arranged on the side of the movable frame facing the guide sleeve, and the L-shaped plates on both sides are respectively limited and slidably arranged in the corresponding limit grooves.
[0015] A method for constructing a grounding grid for reducing the resistance of a wind turbine generator, applicable to the aforementioned grounding grid construction device for reducing the resistance of a wind turbine generator, includes the following steps: S1. First, dig an annular pit around the wind turbine foundation using excavation equipment, and then drill holes at equal intervals inside the annular pit using drilling equipment. S2. Place the guide frame inside the slot so that the support frame is attached to the ground surface at the top of the slot; S3. Hold the vertical rod and drive the ring plate and toothed ring to rotate. The rotation of the toothed ring drives the helical gear to rotate, which in turn drives the internal threaded sleeve to rotate, causing the threaded rod to move along the axial direction of the internal threaded sleeve. Adjust the position of the support plate until the roller on the support plate abuts against the inner wall of the hole groove, thereby achieving stable positioning of the guide frame in the hole groove. S4. Insert the grounding electrode into the center of the slot through the guide sleeve to ensure that a uniform gap is formed between the grounding electrode and the inner wall of the slot. S5. Fill the gap between the grounding electrode and the inner wall of the slot with conductive powder medium. During the filling process, the filled conductive powder medium is compacted by the tamping component to ensure that the conductive powder medium is tightly filled without gaps. S6. Repeat the above steps until all holes and slots have completed the installation of the grounding electrode and the filling and compaction of the conductive powder medium. S7. Connect each grounding electrode to the other with a conductor to form a complete grounding resistance reduction grounding network.
[0016] The beneficial effects of this invention are as follows: 1. The present invention discloses a method and device for constructing a grounding resistance reduction grounding grid for wind turbine units. By setting a guide frame to guide the grounding electrode to be inserted into the center position of the hole groove, the guide frame is placed inside the hole groove during use. The worker inserts the grounding electrode into the center position of the hole groove through the guide sleeve to ensure that a uniform gap is formed between the grounding electrode and the inner wall of the hole groove. When filling the gap with conductive powder medium in the future, the medium distribution can be guaranteed to be uniform, thereby improving the grounding effect.
[0017] 2. The wind turbine grounding resistance reduction grounding grid construction method and device of the present invention adjusts the position of the support plate by adjusting the component, so that the support plate abuts against the inner wall of the pit, thereby limiting the guide frame; and it can be installed in holes and slots of different sizes, enhancing the versatility and flexibility of the device; and the gear ring synchronously drives the symmetrically arranged gears on all four sides, making the adjustment process of the support plate more stable and synchronous, improving the adjustment rate and reducing the difficulty of operation. Attached Figure Description
[0018] The invention will now be further described with reference to the accompanying drawings.
[0019] Figure 1 This is a perspective view of the present invention; Figure 2 This is a partial cross-sectional view of the present invention; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 yes Figure 2 Enlarged view of point A in the middle; Figure 5 This is a top view of the present invention; Figure 6 yes Figure 3 Enlarged view at point B in the middle; Figure 7 yes Figure 3 Enlarged view at point C; Figure 8 This is a flowchart of the method of the present invention.
[0020] In the diagram: 1. Support sleeve; 2. Guide sleeve; 3. Support frame; 4. Support plate; 5. Roller; 6. Movable frame; 7. Tamping ring; 8. Support rod; 9. Movable sleeve rod; 10. Fixed block; 11. Internal threaded sleeve; 12. Helical gear; 13. Threaded rod; 14. Circular track; 15. Gear ring; 16. Circular plate; 17. Vertical rod; 18. L-shaped plate; 19. Movable rod; 20. Protrusion; 21. Connecting rod; 22. Movable cavity; 23. Spring 1; 24. Horizontal rod; 25. Movable block; 26. Triangular block 1; 27. Triangular block 2; 28. Spring 2. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.
[0022] Example 1: As Figures 1 to 7 As shown in the figure, a wind turbine grounding resistance reduction grounding grid construction device according to an embodiment of the present invention includes: The guide frame includes a pair of support sleeves 1 spaced apart vertically, which are fixedly connected by a fixing plate. Support plates 4 are symmetrically arranged on the outer sides of the two support sleeves 1. A guide sleeve 2 is provided at the center of each support sleeve 1 to guide the center position of the grounding electrode insertion slot. An adjustment component is provided on the support sleeve 1 and is used to adjust the support plate 4 to be closer to or further away from the side wall of the support sleeve 1 so that the support plate 4 can abut against the inner wall of the grounding electrode mounting hole groove. A tamping component is disposed inside the support sleeve 1 and is used to tamp the conductive powder medium filled in the gap between the grounding electrode and the inner wall of the slot.
[0023] During operation, firstly, an annular pit is excavated around the wind turbine base using excavation equipment. Then, the required holes are drilled at equal intervals within the annular pit using drilling equipment. A guide frame is placed inside the holes, and the position of the support plate 4 is adjusted using an adjusting assembly, so that the support plate 4 abuts against the inner wall of the pit, thus limiting the guide frame's position. This allows for installation in holes of different sizes, enhancing the device's versatility and flexibility. Next, the grounding electrode is inserted into the center of the hole through the guide sleeve 2, ensuring a uniform gap between the grounding electrode and the inner wall of the hole. This ensures uniform dielectric distribution when filling the gap with conductive powder, thereby improving the grounding effect.
[0024] In addition, by setting up tamping components, the conductive powder medium in the gaps can be filled tightly without gaps, thereby improving the grounding resistance reduction effect and enhancing the stability and safety of the wind turbine grounding system.
[0025] Preferably, the adjusting assembly includes a support rod 8 fixed to the outer wall of the guide sleeve 2, a movable sleeve 9 sleeved at the end of the support rod 8 away from the guide sleeve 2, a support plate 4 fixed to the end of the movable sleeve 9, and the movable sleeve 9 slidably disposed in a through hole one opened on the support sleeve 1; a through hole two is opened on the support sleeve 1 and above the movable sleeve 9, an internally threaded sleeve 11 is rotatably installed in the through hole two, a threaded rod 13 is threadedly connected to the internally threaded sleeve 11, and the end of the threaded rod 13 is fixedly connected to the support plate 4; a helical gear 12 is fixed at the end of the internally threaded sleeve 11 facing the guide sleeve 2, and a gear ring 15 is meshed above the helical gear 12.
[0026] Preferably, an annular track 14 is fixed above the inner wall of the support sleeve 1, an annular plate 16 is movably arranged in the middle of the annular track 14, the toothed ring 15 is fixed below the annular plate 16, and a vertical rod 17 is fixed at the top of the annular plate 16.
[0027] During operation, the operator holds a vertical rod 17 to drive the annular plate 16 and gear ring 15 to rotate. The rotation of gear ring 15 drives helical gear 12, which in turn causes the internal threaded sleeve 11 to rotate. Since the internal threaded sleeve 11 is threadedly connected to the threaded rod 13, the threaded rod 13 moves axially along the internal threaded sleeve 11 during its rotation. The movement of the threaded rod 13 causes the support plate 4 to move, thereby adjusting the support plate 4 to move closer to or further away from the side wall of the support sleeve 1, until the roller 5 on the support plate 4 abuts against the inner wall of the slot, achieving stable positioning of the guide frame within the slot. Furthermore, the gear ring 15 synchronously drives the symmetrically arranged gears around it, making the adjustment process of the support plate 4 smoother and more synchronized, increasing the adjustment speed, and reducing the difficulty of operation.
[0028] Preferably, the tamping assembly includes a movable frame 6 disposed on the support rod 8, and a tamping ring 7 is installed at the bottom of the movable frame 6 via a connecting rod 21.
[0029] Preferably, the movable frame 6 is configured as a rectangular frame and fitted onto the support rod 8; the movable frame 6 has a movable cavity 22 inside, and movable rods 19 are symmetrically arranged along its length inside the movable cavity 22. A spring 23 for resetting the movable rods 19 is also fixed inside the movable cavity 22; multiple protrusions 20 are evenly distributed on the opposite sidewalls of the movable rods 19 on both sides; the top end of the connecting rod 21 extends movably into the movable cavity 22 and is fixed with a movable block 25. The movable block 25 has a cavity in the middle, and a triangular block 26 is fixed at the top of the cavity; a crossbar 24 is fixed on the sidewall of one side of the movable rod 19, the end of the crossbar 24 extends into the cavity, and a triangular block 27 is fixed at its top.
[0030] Preferably, a spring 28 is fixed between the movable block 25 and the inner wall of the movable cavity 22.
[0031] During operation, conductive powder medium is filled into the gap between the grounding electrode and the inner wall of the slot. During filling, the operator moves the movable frame 6 upwards. As the movable frame 6 moves, multiple protrusions 20 pass sequentially over the support rod 8. Under the combined action of the protrusions 20, the support rod 8, and the spring 23, the movable rod 19 is driven to reciprocate laterally. The crossbar 24 on the movable rod 19 also reciprocates, synchronously driving the second triangular block 27 to move laterally. When the second triangular block 27 contacts the first triangular block 26, it pushes the movable block 25 upwards; when the second triangular block 27 separates from the first triangular block 26, the movable block 25 moves downwards under the action of the spring 28, thus moving the movable block 25 up and down. The movable block 25, through the connecting rod 21, drives the tamping ring 7 to reciprocate up and down, tamping the filled conductive powder medium to ensure a tight, gapless filling, thereby improving the grounding resistance reduction effect and enhancing the stability and safety of the wind turbine grounding system.
[0032] Preferably, rollers 5 are rotatably mounted on the side wall of the support plate 4. During operation, when adjusting the position of the support plate 4, the rollers 5 are controlled to contact the inner wall of the slot. This allows for easier replacement of slots later, where simply pulling the guide frame upwards causes the rollers 5 on the side wall of the support plate 4 to roll along the inner wall of the slot. This significantly reduces the friction between the guide frame and the inner wall of the slot, making the movement of the guide frame easier and smoother. This facilitates the quick transfer of the guide frame to the next slot for installation without the need for readjustment, effectively improving construction efficiency.
[0033] Preferably, the top of the upper support sleeve 1 is fixed with a support frame 3 for grounding the grounding electrode. During operation, when the guide frame is placed inside the slot, the support frame 3 can stably rest on the ground surface at the top of the slot, providing stable support for the entire guide frame, preventing the guide frame from shaking or shifting during subsequent construction, ensuring the accuracy of the grounding electrode insertion into the center of the slot, and ensuring that the support plate 4 can smoothly abut against the inner wall of the slot.
[0034] Example 2: Figure 4 and Figure 5 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a fixing block 10 is fixed on the side wall of the guide sleeve 2, and the support rod 8 is fixed on the fixing block 10; limiting grooves are formed on both sides of the fixing block 10, and L-shaped plates 18 are symmetrically arranged on the side of the movable frame 6 facing the guide sleeve 2, with the L-shaped plates 18 on both sides respectively limited and slidably disposed inside the corresponding limiting grooves. During operation, when the movable frame 6 moves on the support rod 8, the L-shaped plates 18 will slide along the limiting grooves on both sides of the fixing block 10. The limiting grooves play a role in restricting and guiding the L-shaped plates 18, so that the movable frame 6 can only move up and down in a specific direction without deviation or shaking.
[0035] like Figure 8 As shown, the present invention provides a method for constructing a grounding resistance reduction grounding grid for wind turbine generators. This method is applicable to the aforementioned wind turbine generator grounding resistance reduction grounding grid construction device and includes the following steps: S1. First, dig an annular pit around the wind turbine foundation using excavation equipment, and then drill holes at equal intervals inside the annular pit using drilling equipment. S2. Place the guide frame inside the slot so that the support frame 3 overlaps the top surface of the slot. S3. Hold the vertical rod 17 and drive the annular plate 16 and the toothed ring 15 to rotate. The rotation of the toothed ring 15 drives the helical gear 12 to rotate, which in turn drives the internal threaded sleeve 11 to rotate, causing the threaded rod 13 to move along the axial direction of the internal threaded sleeve 11. Adjust the position of the support plate 4 until the roller 5 on the support plate 4 abuts against the inner wall of the hole groove, thereby achieving stable positioning of the guide frame in the hole groove. S4. Insert the grounding electrode into the center of the slot through the guide sleeve 2 to ensure that a uniform gap is formed between the grounding electrode and the inner wall of the slot. S5. Fill the gap between the grounding electrode and the inner wall of the slot with conductive powder medium. During the filling process, the filled conductive powder medium is compacted by the tamping component to ensure that the conductive powder medium is tightly filled without gaps. S6. Repeat the above steps until all holes and slots have completed the installation of the grounding electrode and the filling and compaction of the conductive powder medium. S7. Connect each grounding electrode to the other with a conductor to form a complete grounding resistance reduction grounding network.
[0036] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0037] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.
[0038] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A construction device for grounding resistance reduction grounding grid of wind turbine generator, characterized in that: include: The guide frame includes a pair of support sleeves (1) spaced apart vertically, which are fixedly connected by a fixing plate. Support plates (4) are symmetrically arranged on the outer sides of the two support sleeves (1). A guide sleeve (2) is provided at the center of each support sleeve (1) to guide the center position of the grounding electrode insertion hole. An adjustment component is provided on the support sleeve (1) for adjusting the support plate (4) to be close to or away from the side wall of the support sleeve (1) so that the support plate (4) can abut against the inner wall of the grounding electrode mounting hole groove. The tamping component is disposed inside the support sleeve (1) and is used to tamp the conductive powder medium filled in the gap between the grounding electrode and the inner wall of the slot.
2. The wind turbine grounding resistance reduction grounding grid construction device according to claim 1, characterized in that: The adjustment assembly includes a support rod (8) fixed to the outer wall of the guide sleeve (2), a movable sleeve rod (9) sleeved at one end of the support rod (8) away from the guide sleeve (2), a support plate (4) fixed to the end of the movable sleeve rod (9), and the movable sleeve rod (9) slidably disposed in a through hole one opened on the support sleeve (1); a through hole two is opened on the support sleeve (1) and above the movable sleeve rod (9), an internal threaded sleeve (11) is rotatably installed in the through hole two, a threaded rod (13) is threadedly connected in the internal threaded sleeve (11), and the end of the threaded rod (13) is fixedly connected to the support plate (4); a helical gear (12) is fixed at one end of the internal threaded sleeve (11) facing the guide sleeve (2), and a gear ring (15) is meshed above the helical gear (12).
3. The wind turbine grounding resistance reduction grounding grid construction device according to claim 2, characterized in that: An annular track (14) is fixed above the inner wall of the support sleeve (1). An annular plate (16) is movably arranged in the middle of the annular track (14). The toothed ring (15) is fixed below the annular plate (16). A vertical rod (17) is fixed on the top of the annular plate (16).
4. The wind turbine grounding resistance reduction grounding grid construction device according to claim 3, characterized in that: The tamping assembly includes a movable frame (6) mounted on the support rod (8), and a tamping ring (7) is mounted on the bottom of the movable frame (6) via a connecting rod (21).
5. The wind turbine grounding resistance reduction grounding grid construction device according to claim 4, characterized in that: The movable frame (6) is set as a rectangular frame and sleeved on the support rod (8); the movable frame (6) is provided with a movable cavity (22), and movable rods (19) are symmetrically arranged along its length inside the movable cavity (22). A spring (23) for resetting the movable rods (19) is also fixed inside the movable cavity (22); multiple protrusions (20) are evenly distributed on the opposite side walls of the movable rods (19) on both sides; the top of the connecting rod (21) extends movably into the movable cavity (22) and is fixed with a movable block (25). A cavity is opened in the middle of the movable block (25), and a triangular block (26) is fixed at the top of the cavity; a crossbar (24) is fixed on the side wall of one side of the movable rod (19), and the end of the crossbar (24) extends into the cavity, and a triangular block (27) is fixed at its top.
6. The wind turbine grounding resistance reduction grounding grid construction device according to claim 5, characterized in that: A second spring (28) is fixed between the movable block (25) and the inner wall of the movable cavity (22).
7. The wind turbine grounding resistance reduction grounding grid construction device according to claim 1, characterized in that: Rollers (5) are rotatably mounted on the side wall of the support plate (4).
8. The construction device for grounding resistance reduction grounding grid of wind turbine generator according to claim 1, characterized in that: The top of the upper support sleeve (1) is fixed with a support frame (3) for connecting the ground meter.
9. A construction device for grounding resistance reduction grounding grid of a wind turbine unit according to claim 4, characterized in that: A fixing block (10) is fixed on the side wall of the guide sleeve (2), and the support rod (8) is fixed on the fixing block (10). Limiting grooves are opened on both sides of the fixing block (10), and L-shaped plates (18) are symmetrically arranged on one side of the movable frame (6) facing the guide sleeve (2). The L-shaped plates (18) on both sides are respectively limited and slidably arranged in the corresponding limiting grooves.
10. A method for constructing a grounding resistance reduction grounding grid for wind turbine generators, applicable to any one of the grounding resistance reduction grounding grid construction devices for wind turbine generators as described in claims 1-9, characterized in that: Includes the following steps: S1. First, dig an annular pit around the wind turbine foundation using excavation equipment, and then drill holes at equal intervals inside the annular pit using drilling equipment. S2. Place the guide frame inside the slot so that the support frame is attached to the ground surface at the top of the slot; S3. Hold the vertical rod and drive the ring plate and toothed ring to rotate. The rotation of the toothed ring drives the helical gear to rotate, which in turn drives the internal threaded sleeve to rotate, causing the threaded rod to move along the axial direction of the internal threaded sleeve. Adjust the position of the support plate until the roller on the support plate abuts against the inner wall of the hole groove, thereby achieving stable positioning of the guide frame in the hole groove. S4. Insert the grounding electrode into the center of the slot through the guide sleeve to ensure that a uniform gap is formed between the grounding electrode and the inner wall of the slot. S5. Fill the gap between the grounding electrode and the inner wall of the slot with conductive powder medium. During the filling process, the conductive powder medium is compacted by the tamping component to ensure that the conductive powder medium is tightly filled without gaps. S6. Repeat the above steps until all holes and slots have completed the installation of the grounding electrode and the filling and compaction of the conductive powder medium. S7. Connect each grounding electrode to the others with a conductor to form a complete grounding resistance reduction grounding network.