A mobile 10kV high-voltage circuit breaker mechanical characteristic test bench

Abstract

The utility model relates to a movable 10kV high voltage circuit breaker mechanical characteristic test board, it includes the test board body that is equipped with the socket, the first, second, third track of sliding assembly on test board body, be equipped with crossbeam on test board body top, and have fixed groove on the side of crossbeam, the guide baffle of being located crossbeam outside is equipped with in first track, second track, third track both sides, and install the jacking bolt on the guide baffle, the alignment insert piece is equipped with below first track, the butt joint slot that is compatible with alignment insert piece is equipped with below third track. This test board passes through three track double state adjusting structure and the interface combination structure with lift truck, completely eliminates the circuit breaker hoisting handling link, significantly improves the test security, the separable third track makes the insulation pull rod measurement area completely expose, realizes sensor quick installation, realizes high -efficient continuous operation on the basis of guaranteeing the shift of high voltage circuit breaker in mechanical characteristic test.

Description

Technical Field

[0001] This utility model relates to the field of electrical testing equipment and technology, specifically to a mobile 10kV high-voltage circuit breaker mechanical characteristic test bench. Background Technology

[0002] As a core protection device in the power system, the mechanical characteristic testing of 10kV high-voltage circuit breakers is a crucial step in ensuring reliable opening and closing. In traditional testing procedures, the circuit breaker needs to be removed from the switchgear, transported to a fixed test bench using hoisting equipment, and then hoisted back into the cabinet after sensor installation and mechanical testing. This method has several shortcomings and defects: First, repeated hoisting poses significant safety hazards. Heavy circuit breakers are easily overturned due to center of gravity shift when moved repeatedly in confined spaces, and the reliance on manual pushing for positioning makes operation significantly dangerous. Second, the test preparation process is cumbersome. The fixed test bench track structure obstructs key measurement points on the bottom of the circuit breaker (such as insulating tie rods), and partial track removal is required when installing sensors, which is not only time-consuming and labor-intensive but may also alter the initial mechanical state of the circuit breaker. Furthermore, equipment coordination efficiency is low. While customized lifting test benches reduce the number of hoisting operations, their high cost makes widespread adoption difficult. External forklifts lack dedicated interfaces, posing a risk of detachment during lifting, and prolonged forklift occupation during testing leads to resource waste. Utility Model Content

[0003] The technical problem this utility model aims to solve is how to overcome the aforementioned defects of the prior art and provide a mobile 10kV high-voltage circuit breaker mechanical characteristic test bench. Through a three-rail dual-state adjustment structure and an interface combination structure with a lifting vehicle, it completely eliminates the circuit breaker hoisting and handling process, and makes it possible for a single lifting vehicle to serve multiple test benches, significantly improving test safety. The laterally movable third rail provides ample sensor operation windows during testing, fully exposing the insulation rod measurement area and enabling rapid sensor installation without disassembly. The extended track structure forms a continuous support section when the third rail is merged, fundamentally eliminating the risk of overturning caused by track joint gaps. Thus, while ensuring the transfer of the high-voltage circuit breaker during mechanical characteristic testing, it achieves efficient and continuous operation.

[0004] This mobile 10kV high-voltage circuit breaker mechanical characteristic test bench includes a test bench body with an insertion port for inserting the two forks of a lifting vehicle; it also includes a first rail and a second rail slidably mounted on the test bench body, and a third rail slidably mounted on the test bench body and located between the first rail and the second rail. A crossbeam is provided above the test bench body, with a fixing groove on the side of the crossbeam. Guide baffles are provided on both sides of the first rail, the second rail, and the third rail, located outside the crossbeam, and tightening bolts are installed on the guide baffles. An alignment insert is provided below the first rail, and a mating slot adapted to the alignment insert is provided below the third rail.

[0005] Furthermore, the first and second tracks are equipped with chassis locks for matching the circuit breaker chassis.

[0006] Furthermore, the bottom of the test bench is equipped with a set of omnidirectional casters with locking function.

[0007] The optimized design includes a spring pin locking mechanism on the test bench's insertion port.

[0008] In the optimized configuration, the front ends of the first, second, and third tracks all extend forward from the guide baffle to form a continuous support section greater than 150mm.

[0009] This utility model discloses a mobile 10kV high-voltage circuit breaker mechanical characteristic test bench. Through a three-rail dual-state adjustment structure and an interface combination structure with a lifting vehicle, it completely eliminates the circuit breaker hoisting and handling process, making it possible for a single lifting vehicle to serve multiple test benches, significantly improving test safety. The laterally movable third rail provides ample sensor operating windows during testing, fully exposing the insulation rod measurement area and enabling rapid, non-disassembly sensor installation. The extended track structure forms a continuous support section when the third rail is combined, fundamentally eliminating the risk of overturning caused by track joint gaps. Thus, while ensuring the safe transfer of the high-voltage circuit breaker during mechanical characteristic testing, it achieves efficient and continuous operation. Attached Figure Description

[0010] The following description, in conjunction with the accompanying drawings, further illustrates the mechanical characteristic test bench for a mobile 10kV high-voltage circuit breaker according to this utility model:

[0011] Figure 1 This is a three-dimensional structural diagram of the mobile 10kV high-voltage circuit breaker mechanical characteristic test bench.

[0012] Figure 2 This is the main view of the exploded structure of the mobile 10kV high-voltage circuit breaker mechanical characteristic test bench (the first and third rails exploded off the test bench body and are in a top-down view).

[0013] Figure 3 This is a side view of the explosion of the mechanical characteristics test bench for mobile 10kV high-voltage circuit breakers (the first and third rails exploded off the test bench body and were in a top view).

[0014] In the picture:

[0015] 1-Test bench body; 11-Socket, 12-Crossbeam, 13-Universal caster set; 111-Spring pin locking mechanism, 121-Fixing groove;

[0016] 2-First track; 21-Alignment insert;

[0017] 3-Second track;

[0018] 4-Third track; 41-Matching slot;

[0019] 5-Guide baffle; 51-Tightening bolt;

[0020] 6- Chassis lock latch;

[0021] 7-Continuous support section. Detailed Implementation

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0023] In the description of this utility model, it should be understood that the terms "left", "right", "front", "rear", "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 utility model 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 limitations on this utility model.

[0024] The present invention will be further described below with specific embodiments, but the scope of protection of the present invention is not limited to the following embodiments.

[0025] Implementation method 1: such as Figures 1 to 3As shown, this mobile 10kV high-voltage circuit breaker mechanical characteristic test bench includes a test bench body 1, on which a socket 11 for inserting the two forks of a lifting vehicle is provided; it also includes a first rail 2 and a second rail 3 slidably mounted on the test bench body 1, and a third rail 4 slidably mounted on the test bench body 1 and located between the first rail 2 and the second rail 3. A crossbeam 12 is provided above the test bench body 1, and a fixing groove 121 is opened on the side of the crossbeam 12. Guide baffles 5 are provided on both sides of the first rail 2, the second rail 3, and the third rail 4, located outside the crossbeam 12, and tightening bolts 51 are installed on the guide baffles 5. An alignment insert 21 is provided below the first rail 2, and a mating slot 41 adapted to the alignment insert 21 is provided below the third rail 4. The lifting vehicle can be an existing manual or automatic forklift with lifting forks. When it is necessary to adapt to circuit breakers of different widths, first slide the first rail 2 and the second rail 3 to the target distance, and then lock the guide baffle 5 to fix the rail position by tightening the bolt 51. Subsequently, if it is necessary to safely transfer the circuit breaker, push the third rail 4 to merge with the first rail 2, and insert the alignment piece 21 into the docking slot 41 to form a continuous wide rail. At this time, the lifting truck fork inserts into the socket 11 to lift the test platform, which not only achieves seamless rail docking with the switch cabinet, but also avoids the risk of rail misalignment due to the mechanical interlock of the piece-slot. Finally, while reducing the manual handling process, it significantly reduces the circuit breaker overturning accident rate and improves the efficiency of rail adjustment.

[0026] Implementation method 2: such as Figure 1 As shown, the first track 2 and the second track 3 of this mobile 10kV high-voltage circuit breaker mechanical characteristic test bench are equipped with chassis vehicle latches 6 for matching the circuit breaker chassis vehicle. The chassis vehicle latches are universal latches used in existing power station switchgear circuit breaker chassis vehicles. After the circuit breaker slides into the test bench, the chassis vehicle latches 6 engage with the circuit breaker chassis to lock it in place, eliminating measurement errors caused by traditional binding and fixing. The remaining structures and components are as described in Embodiment 1 and will not be repeated.

[0027] Implementation method 3: such as Figure 1 As shown, the bottom of the test bench body 1 of this mobile 10kV high-voltage circuit breaker mechanical characteristic test bench is equipped with a set of universal moving wheels 13 with locking function. After the test bench carrying the circuit breaker is placed on the ground, the universal moving wheels 13 are first unlocked, and then the test bench is manually pushed to the test position. Since the wheels bear the full load in the grounded state, the fine-tuning positioning accuracy is high, ensuring that the mechanical characteristic sensors are not affected by displacement during the 10kV high-voltage high-current test, thus improving the test stability. The remaining structures and components are as described in Embodiment 1 and will not be described again.

[0028] Implementation method 4: such as Figure 2As shown, the test bench body 1 of this mobile 10kV high-voltage circuit breaker mechanical characteristic test bench is equipped with a spring pin locking mechanism 111 on the insertion port 11. During the insertion of the lifting vehicle's forks into the insertion port 11, the spring pin locking mechanism 111 is first pressed by the inclined surface of the forks. When the fork positioning hole aligns with the locking pin, the spring pin automatically springs into the hole to complete the locking. During the lifting operation, because this passive locking mechanism does not require manual intervention, it not only eliminates the risk of the forks falling out, but is also compatible with commercially available standard forks. After the test bench is placed on the ground, the unlocking lever can be manually pulled to release the forks, shortening the time the lifting vehicle occupies the platform. The remaining structures and components are as described in Embodiment 1 and will not be described again.

[0029] Implementation method 5: such as Figure 1 , 2 As shown, the front ends of the first rail 2, second rail 3, and third rail 4 of this mobile 10kV high-voltage circuit breaker mechanical characteristic test bench all extend forward from the guide baffle 5 to form a continuous support section 7 greater than 150mm. By constructing a seamless rail transition zone through the extension section, the risk of overturning due to rail gaps when the circuit breaker slides from the switchgear to the test bench is completely eliminated. At the same time, it provides operators with intuitive safety redundancy markings and significantly improves the stability of heavy equipment transfer.

[0030] In use: Insert the forks of the manual hydraulic forklift into the bottom socket 11 of the test bench. When the forks are fully inserted, the spring pin locking mechanism 111 automatically engages with the fork positioning hole to achieve anti-disengagement locking. Operate the forklift to lift and move the test bench to the front of the switch cabinet. Adjust the height of the test bench hydraulically until the first track 2 and the second track 3 are precisely aligned with the switch cabinet track. Slide the distance between the first and second tracks to be the same width as the switch cabinet track, and use the tightening bolt 51 to lock the guide baffle 5 to fix the track. Push the third track 4 to merge with the first track 2, and insert the alignment piece 21 into the docking slot 4. 1. Form a continuous wide rail and smoothly pull the circuit breaker from the switch cabinet onto the test bench rail. After locking the wheel assembly, use the chassis lock 6 to fix the circuit breaker. Lower the forklift to lower the entire test bench to the ground, pull out the forklift, and move the third rail 4 laterally to expose the bottom insulating tie rod area. Push the test bench to the test position to install the sensor. At this time, the third rail 4 independently supports the tail of the circuit breaker to form a stable triangular structure, and the mechanical characteristic test can be carried out directly. After the test is completed, insert the forklift to move back to the test bench and lift it to align with the switch cabinet. Merge the third rail 4, unlock the wheel assembly and lock 6, and slide the circuit breaker back into the cabinet to complete the whole process.

[0031] This mobile 10kV high-voltage circuit breaker mechanical characteristic test bench, through its three-rail dual-state adjustment structure and interface combination structure with the lifting vehicle, completely eliminates the circuit breaker hoisting and handling process, and makes it possible for a single lifting vehicle to serve multiple test benches, significantly improving test safety. The laterally movable third rail provides ample sensor operation windows during testing, fully exposing the insulation rod measurement area and enabling rapid sensor installation without disassembly. The extended track structure forms a continuous support section when the third rail is merged, fundamentally eliminating the risk of overturning caused by track joint gaps. Thus, while ensuring the transfer of high-voltage circuit breakers during mechanical characteristic testing, it achieves efficient and continuous operation.

[0032] The above description illustrates the main features, basic principles, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments or examples described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments or examples should be considered exemplary and not restrictive. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mobile 10kV high-voltage circuit breaker mechanical characteristic test bench, characterized in that: The system includes a test bench body (1) with slots (11) for inserting the two forks of a lifting vehicle; it also includes a first track (2) and a second track (3) slidably mounted on the test bench body (1), and a third track (4) slidably mounted on the test bench body (1) and located between the first track (2) and the second track (3), wherein... The test bench body (1) is provided with a crossbeam (12) above it and a fixing groove (121) is opened on the side of the crossbeam (12). The first track (2), the second track (3), and the third track (4) are provided with guide baffles (5) located outside the crossbeam (12) on both sides, and tightening bolts (51) are installed on the guide baffles (5). The first track (2) is provided with a positioning insert (21) below it, and the third track (4) is provided with a docking slot (41) that is compatible with the positioning insert (21) below it.

2. The mobile 10kV high-voltage circuit breaker mechanical characteristic test bench according to claim 1, characterized in that: The first track (2) and the second track (3) are provided with chassis locks (6) for matching the circuit breaker chassis.

3. The mobile 10kV high-voltage circuit breaker mechanical characteristic test bench according to claim 2, characterized in that: The bottom of the test bench body (1) is equipped with a set of universal casters (13) with locking function.

4. The mobile 10kV high-voltage circuit breaker mechanical characteristic test bench according to claim 3, characterized in that: The test bench body (1) is provided with a spring pin locking mechanism (111) on the socket (11).

5. The mobile 10kV high-voltage circuit breaker mechanical characteristic test bench according to any one of claims 1 to 4, characterized in that: The front ends of the first track (2), the second track (3), and the third track (4) all extend forward from the guide baffle (5) to form a continuous support part (7) of more than 150 mm.

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