Simulation load device for high-voltage switch operating mechanism

Abstract

The utility model discloses a simulation load device for a high-voltage switch operating mechanism, which comprises a rack, a fixed table is arranged on the upper end face of the rack, a loader is arranged on the rack, a load shaft is rotatably connected onto the loader, and the load shaft is connected with a transmission shaft in a high-voltage switch box body; an insertion column and a plurality of spline blocks are arranged on the load shaft, and the insertion column is fixed on the load shaft and inserted into the spline hole of the transmission shaft; the multiple spline blocks are evenly distributed on the side wall of the insertion column, and each spline block transversely extends to the outer portion of the insertion column. According to the utility model, the high-voltage switch box body can be easily and stably fixed on the rack through the fixing table and the load device, and meanwhile, accurate butt joint of the load shaft and the transmission shaft in the high-voltage switch box body is ensured. The installation process is simplified, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a simulated load device for a high-voltage switch operating mechanism, belonging to the field of high-voltage switch load simulation technology. Background Technology

[0002] In the testing and evaluation of high-voltage switchgear operating mechanisms, traditional methods often require complex and cumbersome installation steps to secure the operating mechanism housing and ensure precise alignment of the internal drive shaft with the testing equipment. This consumes a significant amount of time and effort. Furthermore, traditional simulated load devices often employ fixed-specification designs, making it difficult to adapt to the needs of drive shafts of varying sizes. Given the diverse types of high-voltage switchgear operating mechanisms and their varying drive shaft specifications, traditional simulated load devices face numerous challenges in adapting to different drive shaft sizes. To accommodate different drive shaft specifications, multiple simulated load devices of various sizes are often required, increasing testing costs and reducing efficiency. Therefore, there is an urgent need for testing equipment that simplifies the installation process, improves installation accuracy and stability, and ensures a secure connection between drive shafts.

[0003] To address the aforementioned issues, a simulated load device for high-voltage switch operating mechanisms is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a simulated load device for a high-voltage switch operating mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a simulated load device for a high-voltage switch operating mechanism, comprising:

[0006] frame;

[0007] A fixing platform is provided on the upper end face of the frame and is used to fix the housing of the high-voltage switch operating mechanism.

[0008] The load cell is mounted on a frame and located below a fixed platform. A load shaft is rotatably connected to the load cell and is connected to a transmission shaft inside the high-voltage switch operating mechanism housing.

[0009] The load shaft is provided with:

[0010] A cylindrical plug-in pin is fixed on the load shaft and inserted into the spline hole of the aforementioned drive shaft;

[0011] Multiple spline blocks are evenly distributed on the side wall of the plug post, and each spline block extends laterally to the outside of the plug post.

[0012] When the plug is inserted into the spline hole of the drive shaft, the spline block is located in the keyway of the spline hole.

[0013] Preferably, the spline block slides perpendicularly to the insertion post axis on the insertion post, and the load shaft is provided with an adjustment component for adjusting the sliding length of the spline block, the adjustment component comprising:

[0014] A top pressure block, which is slidably connected inside the plug-in post along the axial direction of the plug-in post;

[0015] A lead screw, which is rotatably connected to a load shaft, with its centerline perpendicular to the axis of the load shaft;

[0016] Two sliders are meshed and connected to a lead screw. When the lead screw slides, the two sliders slide symmetrically on the plug-in pin.

[0017] Two push-pull rods are rotatably connected to two sliders, and the upper ends of both push-pull rods are rotatably connected to the side wall of the top pressure block.

[0018] Preferably, the upper end of the top pressure block is conical, and the lower end of the spline block has an inclined wall that matches the upper end of the top pressure block.

[0019] Preferably, the upper end of the plug is chamfered.

[0020] Preferably, the fixed platform is provided with a placement slot for placing the high-voltage switch operating mechanism housing. Two clamping blocks are provided on both sides of the placement slot, and a locking screw is engaged with both sides of the placement slot. The threaded ends of the two locking screws are rotatably connected to the side wall of the clamping block on the same side.

[0021] Preferably, a rubber layer is fixed on the surface of the two clamping blocks.

[0022] Preferably, the surface of the rubber layer is provided with anti-slip texture.

[0023] Preferably, the middle of the placement slot is provided with a through hole for the drive shaft of the high-voltage switch operating mechanism housing to pass downward.

[0024] Compared with existing technologies:

[0025] 1. This utility model easily and securely fixes the high-voltage switch operating mechanism housing to the frame using a fixing platform and load device, while ensuring precise alignment between the load shaft and the drive shaft inside the high-voltage switch operating mechanism housing. This simplifies the installation process and improves work efficiency. Regarding the insertion and mating, the evenly distributed spline blocks on the side wall of the insertion post achieve precise mating with the keyway of the spline hole in the drive shaft. This spline connection method not only has strong torque transmission capability but also a self-locking function, effectively preventing loosening and slippage during transmission. This ensures a stable connection between the load shaft and the drive shaft, providing a solid foundation for subsequent simulation operations.

[0026] 2. This utility model introduces an adjustment component, allowing the spline block to slide perpendicularly to the axis on the insertion post, thereby adjusting its sliding length. When it is necessary to adapt to different specifications of drive shafts, simply operate the adjustment component and rotate the lead screw to drive the two sliders to slide symmetrically on the insertion post. The sliders are connected to the top pressure block via push-pull rods. As the sliders slide, the push-pull rods push or pull the top pressure block to slide along the axis of the insertion post, ensuring a complete fit with the spline hole and keyway of the required drive shaft, thus achieving the adaptation of the load shaft to different specifications of drive shafts. This enhances the versatility and flexibility of the simulated load device, enabling its widespread application in the testing and evaluation of high-voltage switch operating mechanisms of different specifications. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the high-voltage switch operating mechanism housing of this utility model fixed on a fixed platform;

[0028] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the load shaft, plug-in post and spline block of this utility model;

[0031] Figure 5 This is an exploded view of the top pressure block and spline block of this utility model;

[0032] Figure 6 This is a cross-sectional view of the load shaft, plug-in column, spline block and top pressure block of this utility model.

[0033] In the picture:

[0034] 1. Frame; 101. Stage;

[0035] 2. Fixing platform, 201. Placement slot, 202. Through hole;

[0036] 3. Load cell; 4. Load shaft;

[0037] 401. Inserted post; 402. Spline block; 403. Inclined wall;

[0038] 5. Adjustment components;

[0039] 501. Top pressure block; 502. Lead screw; 503. Slider; 504. Push-pull rod;

[0040] 6. Clamping block, 7. Rubber layer, 8. Locking screw. Detailed Implementation

[0041] The present invention is illustrated below with specific embodiments, but these are not intended to limit the scope of the invention.

[0042] Example 1

[0043] like Figures 1-6 As shown, in this embodiment, a simulated load device for a high-voltage switch operating mechanism is provided, including a frame 1; a fixed platform 2 is provided on the upper end surface of the frame 1 for fixing the housing of the high-voltage switch operating mechanism; a load cell 3 is provided on the frame 1 and below the fixed platform 2, such as... Figure 1 and Figure 2 As shown, a platform 101 for supporting a load cell 3 is fixed on the frame 1 and located at the lower end of the fixed platform 2. A load shaft 4 is rotatably connected to the load cell 3 and is connected to a transmission shaft inside the high-voltage switch operating mechanism housing. A column-shaped insertion post 401 is provided on the load shaft 4. The insertion post 401 is fixed on the load shaft 4 and inserted into the spline hole of the transmission shaft. The insertion post 401 and the load shaft 4 are integrally formed, and the axis of the insertion post 401 is collinear with the axis of the load shaft 4. A plurality of spline blocks 402 are evenly distributed on the side wall of the insertion post 401, and each spline block 402 extends laterally to the outside of the insertion post 401. When the insertion post 401 is inserted into the spline hole of the transmission shaft, the spline block 402 is located in the keyway of the spline hole.

[0044] Installation and Connection: First, fix the housing of the high-voltage switch operating mechanism on the fixed platform 2 at the upper end of the frame 1. The load shaft 4 on the load device 3 is connected to the drive shaft inside the housing of the high-voltage switch operating mechanism through the column-shaped plug 401 on it.

[0045] Insertion and Fitting: The insertion post 401 is designed to be integrally formed on the load shaft 4, with its axis collinear with the axis of the load shaft 4. Multiple spline blocks 402 are evenly distributed on the sidewall of the insertion post 401, extending laterally to the outside of the insertion post 401. When the insertion post 401 is inserted into the spline hole of the drive shaft, the spline blocks 402 precisely fit into the keyway of the spline hole, thereby achieving a stable connection between the load shaft 4 and the drive shaft.

[0046] Operation and Simulation: Once the connection is complete, the operation of the high-voltage switch operating mechanism will drive the drive shaft to rotate, which in turn drives the load shaft 4 to rotate via the spline connection. The load cell 3 simulates the load conditions of the high-voltage switch operating mechanism in actual operation based on the rotation of the load shaft 4.

[0047] Example 2

[0048] like Figures 4-6 As shown, based on Embodiment 1, in order to adapt the load shaft 4 to drive shafts of different specifications, the spline block 402 slides perpendicularly to the axis of the plug-in post 401 on the plug-in post 401. The load shaft 4 is provided with an adjustment component 5 for adjusting the sliding length of the spline block 402. The adjustment component 5 includes a top pressure block 501, which is slidably connected to the inside of the plug-in post 401 along the axial direction of the plug-in post 401. The lower end of the top pressure block 501 extends into the inside of the load shaft 4. A lead screw 502 is rotatably connected to the load shaft 4. The center line of the lead screw 502 is perpendicular to the axis of the load shaft 4. Two sliders 503 are engaged with the lead screw 502. When the lead screw 502 slides, the two sliders 503 slide symmetrically on the plug-in post 401. Each of the two sliders 503 is rotatably connected to a push-pull rod 504, and the upper ends of the two push-pull rods 504 are rotatably connected to the side wall of the top pressure block 501.

[0049] like Figure 5 and Figure 6 As shown, in order to facilitate the top pressing block 501 to push the spline block 402, the upper end of the top pressing block 501 is conical, and the lower end of the spline block 402 is provided with an inclined wall 403 that cooperates with the upper end of the top pressing block 501.

[0050] Initial state: When no adjustment is made, the spline block 402 is in the inner position of the insertion post 401, and its sliding length is insufficient to fully match the spline hole keyway of the drive shaft.

[0051] Adjustment preparation: When it is necessary to adapt to different specifications of drive shafts, first operate the adjustment component 5. The adjustment component 5 includes a top pressure block 501, a lead screw 502, a slider 503, and a push-pull rod 504.

[0052] Screw operation: Rotate screw 502 (e.g.) Figure 5 As shown, one end of the lead screw 502 is provided with a hexagonal countersunk hole to facilitate the rotation of the lead screw 502. Since the center line of the lead screw 502 is perpendicular to the axis of the load shaft 4, and two sliders 503 are meshed on the lead screw 502, when the lead screw 502 rotates, the two sliders 503 will slide symmetrically on the plug post 401.

[0053] The transmission of the push-pull rod 504: Two sliders 503 are rotatably connected to a push-pull rod 504, and the upper end of the push-pull rod 504 is rotatably connected to the side wall of the top pressure block 501. As the sliders 503 slide, the push-pull rod 504 will push or pull the top pressure block 501 to slide along the axial direction of the insertion post 401.

[0054] The function of the top pressure block 501: The upper end of the top pressure block 501 is conical, which cooperates with the inclined wall 403 at the lower end of the spline block 402. When the top pressure block 501 slides upward, its conical upper end will push the spline block 402 to slide outward along the insertion post 401, increasing the sliding length of the spline block 402.

[0055] Adaptation complete: By adjusting the lead screw 502, the sliding length of the spline block 402 is made to fully match the spline hole and keyway of the required transmission shaft, thereby achieving the adaptation of the load shaft 4 to transmission shafts of different specifications.

[0056] The upper end of the plug post 401 is chamfered.

[0057] Example 3

[0058] like Figures 1-3 As shown, based on the above embodiment, in order to quickly fix the high-voltage switch operating mechanism housing on the fixed platform 2, the fixed platform 2 is provided with a placement groove 201 for placing the high-voltage switch operating mechanism housing. Two clamping blocks 6 are provided on both sides of the placement groove 201, and a locking screw 8 is engaged with both sides of the placement groove 201. The threaded ends of the two locking screws 8 are respectively rotatably connected to the side wall of the clamping block 6 on the same side.

[0059] Placing the high-voltage switch operating mechanism housing: First, place the high-voltage switch operating mechanism housing in the placement slot 201 of the fixed platform 2. The placement slot 201 ensures that the housing is placed stably;

[0060] Adjustment of clamping block 6: Next, adjust the clamping blocks 6 on both sides of the placement groove 201. The clamping blocks 6 are engaged with the side wall of the placement groove 201 by the locking screw 8. Therefore, the clamping blocks 6 can be pushed or pulled by rotating the locking screw 8, thereby adjusting the distance between the clamping blocks 6 and the box.

[0061] Locking and fixing: When the clamping block 6 is adjusted to a suitable position, that is, when it is in close contact with the side wall of the box, continue to rotate the locking screw 8 so that its threaded end is rotated and connected to the side wall of the clamping block 6 on the same side, thereby firmly fixing the clamping block 6 to the side wall of the placement slot 201 and realizing the clamping and fixing of the box.

[0062] A rubber layer 7 is fixed on the surface of the two clamping blocks 6, and the surface of the rubber layer 7 is provided with anti-slip texture.

[0063] Anti-slip treatment: Since the surface of the clamping block 6 is fixed with a rubber layer 7, and the surface of the rubber layer 7 is provided with anti-slip texture, it can effectively prevent the box from sliding or shifting during the test, ensuring the accuracy and safety of the test.

[0064] A through hole 202 is provided in the middle of the placement slot 201 for the drive shaft of the high-voltage switch operating mechanism box to pass downward.

[0065] Drive shaft protrusion: Finally, the drive shaft inside the high-voltage switch operating mechanism housing can be passed downward through the through hole 202 in the middle of the placement slot 201 and connected to the plug post 401 on the load shaft 4.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model without departing from the spirit and scope of this utility model. Any modifications or partial substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A simulated load device for a high-voltage switch operating mechanism, characterized in that, include: Rack (1); A fixed platform (2) is provided on the upper end face of the frame (1) for fixing the housing of the high voltage switch operating mechanism; Loader (3), the loader (3) is set on the frame (1) and located below the fixed platform (2), the loader (3) is rotatably connected to the load shaft (4), the load shaft (4) is connected to the transmission shaft in the high voltage switch operating mechanism box; The load shaft (4) is provided with: A column-shaped plug (401) is fixed on the load shaft (4) and plugged into the spline hole of the aforementioned transmission shaft; Multiple spline blocks (402) are evenly distributed on the side wall of the plug post (401), and each spline block (402) extends laterally to the outside of the plug post (401). When the plug pin (401) is inserted into the spline hole of the drive shaft, the spline block (402) is located in the keyway of the spline hole.

2. The simulated load device for a high-voltage switch operating mechanism according to claim 1, characterized in that, The spline block (402) slides perpendicularly to the axis of the plug (401) on the plug (401). An adjustment assembly (5) for adjusting the sliding length of the spline block (402) is provided on the load shaft (4). The adjustment assembly (5) includes: A top pressure block (501) is slidably connected inside the plug-in post (401) along the axial direction of the plug-in post (401); A lead screw (502) is rotatably connected to a load shaft (4), and the center line of the lead screw (502) is perpendicular to the axis of the load shaft (4). Two sliders (503) are meshed and connected to the lead screw (502). When the lead screw (502) slides, the two sliders (503) slide symmetrically on the plug-in post (401). Two push-pull rods (504) are rotatably connected to two sliders (503), and the upper ends of the two push-pull rods (504) are rotatably connected to the side wall of the top pressure block (501).

3. The simulated load device for a high-voltage switch operating mechanism according to claim 2, characterized in that, The upper end of the top pressure block (501) is conical, and the lower end of the spline block (402) is provided with an inclined wall (403) that matches the upper end of the top pressure block (501).

4. The simulated load device for a high-voltage switch operating mechanism according to claim 1, characterized in that, The upper end of the plug (401) is chamfered.

5. A simulated load device for a high-voltage switch operating mechanism according to claim 1, characterized in that, The fixed platform (2) is provided with a placement slot (201) for placing the high voltage switch operating mechanism box. Two clamping blocks (6) are provided on both sides of the placement slot (201), and a locking screw (8) is engaged with both sides of the placement slot (201). The threaded ends of the two locking screws (8) are respectively rotatably connected to the side wall of the clamping block (6) on the same side.

6. A simulated load device for a high-voltage switch operating mechanism according to claim 5, characterized in that, A rubber layer (7) is fixed on the surface of the two clamping blocks (6).

7. A simulated load device for a high-voltage switch operating mechanism according to claim 6, characterized in that, The surface of the rubber layer (7) is provided with anti-slip texture.

8. A simulated load device for a high-voltage switch operating mechanism according to claim 5, characterized in that, The middle of the placement slot (201) is provided with a through hole (202) for the transmission shaft inside the high-voltage switch operating mechanism housing to pass downward.

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