Flexible tray for high-voltage vacuum circuit breaker

Abstract

The utility model discloses a flexible tray for a high-voltage vacuum circuit breaker, and relates to the technical field of circuit breaker transfer equipment. The device comprises a tray support, two groups of first guide rail assemblies and two groups of second guide rail assemblies are symmetrically arranged on the tray support, the first guide rail assemblies are close to one side of a circuit breaker, the second guide rail assemblies are far away from one side of the circuit breaker, and trays are arranged on the first guide rail assemblies and the second guide rail assemblies on the same side. A track type structure is adopted to be matched with the tray, the width of the tray can be adjusted, and therefore the tray can well adapt to transfer of circuit breakers of different specifications, work intensity is reduced, and operation safety is improved.

Description

Technical Field

[0001] This utility model relates to a flexible tray for high-voltage vacuum circuit breakers, and belongs to the technical field of circuit breaker transfer equipment. Background Technology

[0002] The rated current of the 10KV vacuum circuit breakers in the high-voltage switchgear ranges from 630A to 3150A, and the heaviest weighs nearly 300 kg. Due to the variety of specifications and models and the different width dimensions, transfer equipment is needed to move the circuit breakers, and pallets are required to support the circuit breakers on the transfer equipment.

[0003] Conventional pallet designs use a fixed width structure, with each pallet only suitable for one type of circuit breaker width. This necessitates the use of different pallet sizes within the same distribution room, requiring the selection of the appropriate pallet based on the circuit breaker's dimensions when moving it. Traditional pallets and transfer trolleys are integrated, resulting in a large size that cannot be stacked, taking up considerable space. Furthermore, the pallet's enclosed bottom means that if a circuit breaker has a problem requiring repair, it must be moved to a maintenance table. Due to the weight of the circuit breakers and the limited space in the distribution room, lifting equipment cannot be installed, necessitating manual handling, increasing workload and handling risks. Utility Model Content

[0004] The purpose of this utility model is to address the defects or deficiencies in the existing technology by providing a flexible tray for high-voltage vacuum circuit breakers. The tray adopts a track-type structure to cooperate with the tray, thereby enabling the tray width to be adjusted. This allows it to adapt well to the transportation of circuit breakers of different specifications, reducing workload and improving operational safety.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: it includes a tray support 1, on which a first guide rail assembly 2 and a second guide rail assembly 3 are provided. The first guide rail assembly 2 and the second guide rail assembly 3 are symmetrically arranged in two sets, with the first guide rail assembly 2 being closer to the circuit breaker and the second guide rail assembly 3 being farther away from the circuit breaker. A tray 4 is provided on the first guide rail assembly 2 and the second guide rail assembly 3 on the same side.

[0006] Furthermore, a guide rod 5 is provided at the bottom of the tray 4, and an anti-pinch block 6 is provided in the middle of the guide rod 5.

[0007] Furthermore, the tray support 1 includes a first crossbeam 11 and a second crossbeam 12. The first crossbeam 11 cooperates with the first guide rail assembly 2, and the second crossbeam 12 cooperates with the second guide rail assembly 3.

[0008] Furthermore, the first guide rail assembly 2 includes a first tray bracket 21, a first bracket pad 22, a first slider 23, a first guide rail 24, and a first limiting block 25. The first tray bracket 21 is welded to the first bracket pad 22. The first bracket pad 22 is connected to the first slider 23 by screws. The first guide rail 24 is installed on the first crossbeam 11. The inner side of the first slider 23 is provided with a clamping groove that cooperates with the guide rail grooves provided on both sides of the first guide rail 24. The first limiting block 25 is provided on both sides of the first guide rail 24.

[0009] Furthermore, the second guide rail assembly 3 includes a second tray bracket 31, a second bracket pad 32, a second slider 33, a second guide rail 34, and a second limiting block 35. The second tray bracket 31 is welded to the second bracket pad 32. The second bracket pad 32 and the second slider 33 are connected by screws. The second guide rail 34 is installed on the second crossbeam 12. The inner side of the second slider 33 is provided with a clamping groove that cooperates with the guide rail grooves provided on both sides of the second guide rail 34. The second limiting block 35 is provided on both sides of the second guide rail 34.

[0010] Furthermore, the second bracket pad 32 has its side bent downward to form a limiting edge, and a limiting spring pin 9 is provided on the limiting edge.

[0011] Furthermore, the second crossbeam 12 is provided with several pin holes 121 on its side to match the limiting spring pins 9.

[0012] Furthermore, a limit stop 41 is provided at one end of the tray 4.

[0013] Furthermore, the bottom of the first crossbeam 11 and the second crossbeam 12 are provided with positioning brackets 7, and positioning sensors 8 are provided on both sides of the positioning brackets 7 and the limiting baffle 41 in the same direction.

[0014] The beneficial effects of this utility model after adopting the above technical solution are as follows: the use of a track-type structure in conjunction with a tray enables the tray width to be adjustable, thereby adapting well to the transfer of circuit breakers of different specifications, reducing workload and improving operational safety. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 yes Figure 1 The left view;

[0018] Figure 3 yes Figure 1 The third-angle view;

[0019] Figure 4 This is a schematic diagram showing the state of tray 4 when it is positioned in different locations.

[0020] Explanation of reference numerals in the attached drawings: 1. Tray support; 2. First guide rail assembly; 3. Second guide rail assembly; 4. Tray; 5. Guide rod; 6. Anti-pinch block; 7. Positioning bracket; 8. Positioning sensor; 9. Limiting spring pin; 11. First crossbeam; 12. Second crossbeam; 21. First tray support; 22. First support pad; 23. First slider; 24. First guide rail; 25. First limiting block; 31. Second tray support; 32. Second support pad; 33. Second slider; 34. Second guide rail; 35. Second limiting block; 41. Limiting stop; 121. Detailed Implementation

[0021] See Figures 1-4 As shown, the technical solution adopted in this specific embodiment is as follows: It includes a pallet support 1, on which a first guide rail assembly 2 and a second guide rail assembly 3 are provided. The first guide rail assembly 2 and the second guide rail assembly 3 are symmetrically arranged in two sets, with the first guide rail assembly 2 being closer to the circuit breaker and the second guide rail assembly 3 being farther away from the circuit breaker. A pallet 4 is provided on the first guide rail assembly 2 and the second guide rail assembly 3 on the same side. In this embodiment, a flexible pallet structure is provided. When the circuit breaker is transported, the pallet spacing is adjusted according to the width of the circuit breaker so as to match the width of the circuit breaker and clamp the circuit breaker. A guide rod 5 is provided at the bottom of the pallet 4, and an anti-pinch block 6 is provided in the middle of the guide rod 5. This illustration also shows a way to adjust the pallet, that is, the specifications of the circuit breaker are marked on the pallet support. The pallet can be manually adjusted to the corresponding specification position. The pallet is guided by the guide rod to ensure more horizontal movement, and an anti-pinch block is provided in the middle to prevent the two pallets from colliding and damaging the pallet during transportation or use.

[0022] In another embodiment, a nut is provided at the bottom of the pallet, and the guide rod is a threaded rod. A servo motor is provided on the pallet bracket to drive the threaded rod to rotate and move the pallet on it. With the help of sensors on the transfer vehicle, the width can be automatically adjusted, which further reduces the intensity of manual labor and improves the safety of operation.

[0023] More specifically, the pallet support 1 includes a first crossbeam 11 and a second crossbeam 12. The first crossbeam 11 cooperates with the first guide rail assembly 2, and the second crossbeam 12 cooperates with the second guide rail assembly 3. In this embodiment, two crossbeams are provided as the load-bearing bodies of the guide rail assembly to support the movement and adjustment of the pallet.

[0024] More specifically, the first guide rail assembly 2 includes a first tray bracket 21, a first bracket pad 22, a first slider 23, a first guide rail 24, and a first limiting block 25. The first tray bracket 21 is welded to the first bracket pad 22, and the first bracket pad 22 is connected to the first slider 23 by screws. The first guide rail 24 is mounted on the first crossbeam 11. The inner side of the first slider 23 is provided with a clamping groove that cooperates with the guide rail grooves provided on both sides of the first guide rail 24. The first limiting block 25 is provided on both sides of the first guide rail 24. The second guide rail assembly 3 includes a second tray bracket 31, a second bracket pad 32, a second slider 33, a second guide rail 34, and a second limiting block 35. The second tray bracket 31 is welded to the second bracket pad 32, and the second bracket pad 32 is connected to the second slider 33 by screws. The second guide rail 34 is installed on the second crossbeam 12. The inner side of the second slider 33 is provided with a clamping groove that cooperates with the guide rail grooves provided on both sides of the second guide rail 34. The second limiting block 35 is provided on both sides of the second guide rail 34. In this embodiment, the two sets of guide rail assemblies have the same movement adjustment function and also need to have good support capacity. Therefore, a tray bracket is provided on the slider, which serves as a connector between the slider and the tray and also as a support for the tray. The slider is provided with a clamping groove on its inner side, and the guide rail grooves are provided on both sides of the guide rail. The slider is slidably connected to the guide rail groove through the clamping groove, thereby realizing the linear movement of the tray on the guide rail. This facilitates the adjustment of the tray spacing to match the width of the circuit breaker for loading and transportation. In order to prevent the slider from exceeding its stroke, a limiting block structure is provided at both ends of the guide rail to constrain the slider stroke and ensure the safety of the equipment during operation.

[0025] More specifically, the second support pad 32 has its side bent downwards to form a limiting edge, and a limiting spring pin 9 is provided on the limiting edge. The second crossbeam 12 has several pin holes 121 on its side that match the limiting spring pins 9. In this embodiment, the difference between the first guide rail assembly and the second guide rail assembly is that the second guide rail assembly uses a bent support pad with a limiting spring pin on it. When adjusting, the limiting spring pin is pulled out so that the tray can move smoothly. Since the pin holes on the crossbeam also match the width of the circuit breaker, it is important to keep the limiting spring pin pulled out when adjusting the spacing over a large range, and then insert it after the tray spacing adjustment is completed. In another embodiment, when an automatic adjustment structure is used, the limiting spring pin is not used, and the slider stroke is controlled by the motor, thus having a better locking effect.

[0026] More specifically, one end of the tray 4 is provided with a limit stop 41. The limit stop on the tray can limit the circuit breaker after it is installed, prevent the circuit breaker from being overloaded and causing equipment damage, and ensure the safety of the circuit breaker transportation.

[0027] More specifically, the bottom of the first crossbeam 11 and the second crossbeam 12 are provided with positioning brackets 7. Positioning brackets 7 and the limiting baffle 41 are provided with positioning sensors 8 on both sides in the same direction. In this embodiment, the positioning brackets at the bottom of the crossbeams are used for positioning when installed on the transfer trolley to ensure accurate installation. At the same time, the positioning sensors are provided. When the circuit breaker is inserted into place, the positioning sensors sense the sensors on the circuit breaker bracket, triggering a positioning prompt, and then the next stroke can continue, which is conducive to automated operation.

[0028] The working principle of this utility model is as follows: The entire pallet is installed on the transfer trolley. During use, the width between the two pallets 4 is adjusted according to the width of the circuit breaker. When the pallet 4 moves, the slider moves on the guide rail and is assisted by the guide rod 5 to ensure the stability of the movement. After adjusting to the width that matches the circuit breaker, the limit spring pin 9 is inserted into the pin hole 121 to complete the positioning of the pallet 4, ensuring that it can be clamped with the circuit breaker. After the pallet 4 is fully inserted into the bottom of the circuit breaker, the end of the circuit breaker abuts against the limit baffle 41 and will not come out of the pallet 4, ensuring safe operation. At the same time, when the circuit breaker is fully in place, the positioning sensor 8 will sense the corresponding sensor on the circuit breaker bracket, and the transfer trolley will issue a prompt to continue the subsequent transfer operation, realizing automated operation.

[0029] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A flexible tray for a high-voltage vacuum circuit breaker, characterized in that: It includes a tray support (1), on which a first guide rail assembly (2) and a second guide rail assembly (3) are provided. Two sets of the first guide rail assembly (2) and the second guide rail assembly (3) are symmetrically arranged. The first guide rail assembly (2) is closer to the circuit breaker, and the second guide rail assembly (3) is away from the circuit breaker. A tray (4) is provided on the first guide rail assembly (2) and the second guide rail assembly (3) on the same side.

2. The flexible tray for a high-voltage vacuum circuit breaker according to claim 1, characterized in that: The bottom of the tray (4) is provided with a guide rod (5), and the middle of the guide rod (5) is provided with an anti-pinch block (6).

3. The flexible tray for a high-voltage vacuum circuit breaker according to claim 1, characterized in that: The tray support (1) includes a first crossbeam (11) and a second crossbeam (12). The first crossbeam (11) cooperates with the first guide rail assembly (2), and the second crossbeam (12) cooperates with the second guide rail assembly (3).

4. A flexible tray for a high-voltage vacuum circuit breaker according to claim 1, characterized in that: The first guide rail assembly (2) includes a first tray bracket (21), a first bracket pad (22), a first slider (23), a first guide rail (24), and a first limiting block (25). The first tray bracket (21) is welded to the first bracket pad (22). The first bracket pad (22) and the first slider (23) are connected by screws. The first guide rail (24) is installed on the first crossbeam (11). The inner side of the first slider (23) is provided with a clamping groove that cooperates with the guide rail grooves provided on both sides of the first guide rail (24). The first limiting block (25) is provided on both sides of the first guide rail (24).

5. A flexible tray for a high-voltage vacuum circuit breaker according to claim 1, characterized in that: The second guide rail assembly (3) includes a second tray bracket (31), a second bracket pad (32), a second slider (33), a second guide rail (34), and a second limiting block (35). The second tray bracket (31) is welded to the second bracket pad (32). The second bracket pad (32) and the second slider (33) are connected by screws. The second guide rail (34) is installed on the second crossbeam (12). The inner side of the second slider (33) is provided with a clamping groove that cooperates with the guide rail grooves provided on both sides of the second guide rail (34). The second limiting block (35) is provided on both sides of the second guide rail (34).

6. A flexible tray for a high-voltage vacuum circuit breaker according to claim 5, characterized in that: The second bracket pad (32) is bent downward on the side to form a limiting edge, and a limiting spring pin (9) is provided on the limiting edge.

7. A flexible tray for a high-voltage vacuum circuit breaker according to claim 3, characterized in that: The second crossbeam (12) has several pin holes (121) on its side that match the limit spring pins (9).

8. A flexible tray for a high-voltage vacuum circuit breaker according to claim 1, characterized in that: The tray (4) is provided with a limit stop (41) at one end.

9. A flexible tray for a high-voltage vacuum circuit breaker according to claim 3, characterized in that: The bottom of the first crossbeam (11) and the second crossbeam (12) are provided with positioning brackets (7), and positioning sensors (8) are provided on both sides of the positioning brackets (7) and the limiting baffle (41) in the same direction.

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