Drop-out fuse simulation experiment table

Abstract

The utility model relates to the technical field of drop-out fuse testing, and discloses a drop-out fuse simulation experiment table, which comprises a bottom plate, a side plate fixedly connected to the surface of the bottom plate, a rotating shaft rotatably connected to the side wall of the side plate, a mounting bracket fixedly connected to the surface of the rotating shaft, and a first gear rotatably connected to the side wall of the side plate. A reciprocating mechanism is arranged on the surface of the bottom plate, the movable end of the reciprocating mechanism is fixedly connected with a hinge seat, a hinge piece is hinged to the surface of the hinge seat, a first air cylinder is fixedly connected to the surface of the hinge piece, the movable end of the first air cylinder is fixedly connected with a clamping jaw shell, and a clamping mechanism is arranged in the clamping jaw shell. According to the utility model, simulation experiments can be carried out on drop-out fuses with different installation angles, continuous opening and closing operation of the drop-out fuses can be realized, the fatigue performance of the drop-out fuses can be effectively tested, and flexible pulling and closing operation of the drop-out fuses can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of drop-out fuse testing, in particular to a drop-out fuse simulation test bench. Background Art

[0002] A fuse is an electrical protection device, usually used to prevent electrical fires caused by circuit overload and short circuit. When the current in the circuit exceeds the rated current capacity of the fuse, the fuse will automatically blow and cut off the circuit to protect the electrical equipment and circuit from damage. When installing a drop-out fuse, it is usually only necessary to ensure that the angle between the drop-out fuse and the vertical direction is within the range of 15-30 degrees to meet the installation and use requirements. At present, there are many 10kV user lines in the distribution network, and the operation and maintenance level of user lines is not high. When a phase-to-phase short circuit occurs on the user side, the fuse of the drop-out fuse will melt. Due to the different installation angles of the drop-out fuse, the time for the drop-out fuse to fall and disconnect will be different. If the drop-out fuse fails to disconnect quickly and in time, the fault cannot be isolated in time, which will cause the public network line switch to trip, resulting in a large-scale power outage, seriously affecting the safety and normal operation of the power grid. In addition, in the actual 10kV line system and the fuse on the distribution transformer cannot operate correctly. One of the reasons is that some electricians have poor quality and weak sense of responsibility, and do not perform maintenance and repair of drop-out fuses all year round; the second reason is that some drop-out fuses are of poor quality and cannot be pulled and closed flexibly. In reality, there are often cases of lack of fuse tubes, lack of fuses, or using copper wire, aluminum wire, or even iron wire hooks instead of fuses, which makes the line trip rate and distribution transformer failure rate high. Therefore, a drop-out fuse simulation test bench is proposed to perform continuous opening and closing operations on the drop-out fuse. Utility Model Content

[0003] The utility model aims to provide a drop-out fuse simulation test bench to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drop-type fuse simulation test bench, including a bottom plate, the surface of the bottom plate is fixedly connected with a side plate, the side wall of the side plate is rotatably connected with a rotating shaft, the surface of the rotating shaft is fixedly connected with a mounting bracket, the side wall of the side plate is rotatably connected with a first gear, one end of the first gear is fixedly connected to one end of the rotating shaft, a limiting groove is provided on the side wall of the side plate, the inner side wall of the limiting groove is slidably connected with a limiting block, the side wall of the limiting block is fixedly connected with a first tooth plate, the first tooth plate is meshed with the gear, the side wall of the side plate is fixedly connected with an electric telescopic rod, the movable end of the electric telescopic rod is fixedly connected to one end of the first tooth plate, a reciprocating mechanism is provided on the surface of the bottom plate, the movable end of the reciprocating mechanism is fixedly connected with an articulated seat, the surface of the articulated seat is articulated with an articulated part, the surface of the articulated part is fixedly connected with a first cylinder, the movable end of the first cylinder is fixedly connected with a clamping claw shell, and a clamping mechanism is provided in the clamping claw shell.

[0005] As a preferred embodiment, the reciprocating mechanism includes a movable groove, a reciprocating screw, a screw sleeve, a movable block and a driving motor. The surface of the base plate is provided with evenly arranged movable grooves, the inner side wall of the movable groove is rotatably connected to the reciprocating screw, and the screw sleeve is threadedly connected to the surface of the reciprocating screw.

[0006] As a preferred solution, a movable block is fixedly connected to the surface of the screw sleeve, the movable block is slidably connected to the movable groove, and a hinge seat is fixedly connected to the upper surface of the movable block.

[0007] As a preferred solution, the side wall of the bottom plate is fixedly connected with a drive motor, and a power output end of the drive motor is fixedly connected to one end of the reciprocating screw rod.

[0008] As a preferred embodiment, the clamping mechanism includes an open groove, a second gear, a lower tooth plate, an upper tooth plate, a connecting rod and a second cylinder. The second gear is rotatably connected inside the clamp housing, and the upper tooth plate and the lower tooth plate are slidably connected inside the clamp housing, and the upper tooth plate and the lower tooth plate are both meshed and connected with the second gear.

[0009] As a preferred solution, an open groove is provided on the side wall of the clamp housing, and connecting rods are fixedly connected to the surfaces of the upper tooth plate and the lower tooth plate, and the connecting rods extend to the open grooves, and a clamping plate is fixedly connected to one end of the connecting rod, and the clamping plate is slidably connected to the open grooves.

[0010] As a preferred solution, a second cylinder is fixedly connected inside the clamp housing, and a movable end of the second cylinder is fixedly connected to one end of the lower tooth plate.

[0011] As a preferred solution, a controller is fixedly connected to the surface of the base plate, and the drive motor, the electric telescopic rod, the first cylinder and the second cylinder are electrically connected to an external power supply through the controller.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The second cylinder is controlled to operate by a controller, and the movement of the second cylinder movable end drives the lower tooth plate to move, and the movement of the lower tooth plate drives the second gear to rotate, and the rotation of the second gear drives the upper tooth plate to move, and the movement of the upper tooth plate and the lower tooth plate realizes the opposite movement or reverse movement of the two clamping plates, and the fuse switch operating rod is clamped and fixed by the opposite movement of the clamping plates. The limit operation of the fuse switch operating rod is simple and convenient, and easy to use. The operation of the driving motor is controlled by the controller, and the rotation of the power output end of the driving motor drives the reciprocating screw rod to rotate, and the rotation of the reciprocating screw rod drives the screw rod sleeve to move, and the movement of the screw rod sleeve drives the movable block to move, and the movement of the movable block drives the articulated seat to move, and the movement of the articulated seat drives the first cylinder to move, and the movement of the first cylinder drives the jaw housing to move, that is, the fuse switch operating rod is opened and closed, so as to realize the continuous opening and closing operation of the drop-out fuse, which can effectively test the fatigue performance of the drop-out fuse and ensure that the drop-out fuse can be flexibly opened and closed.

[0014] 2. The operation of the electric telescopic rod can be controlled by a controller. The movement of the movable end of the electric telescopic rod drives the movement of the first tooth plate. The movement of the first tooth plate drives the rotation of the first gear. The rotation of the first gear drives the rotation of the rotating shaft. The rotation of the rotating shaft drives the rotation of the mounting bracket, thereby adjusting the inclination angle of the drop-out fuse on the mounting bracket. The drop-out fuse with different installation angles can be simulated. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 For this utility model Figure 1 A magnified view of the structure in the middle.

[0017] Figure 3 For this utility model Figure 2 A magnified view of the structure at B in the middle.

[0018] Figure 4 This is a schematic diagram of the internal structure of the clamp housing of the utility model.

[0019] In the figure: 1. bottom plate; 2. controller; 3. side plate; 4. rotating shaft; 5. mounting bracket; 6. first gear; 7. limiting groove; 8. limiting block; 9. first tooth plate; 10. electric telescopic rod; 11. movable groove; 12. reciprocating screw; 13. screw sleeve; 14. movable block; 15. hinge seat; 16. driving motor; 17. hinge; 18. first cylinder; 19. clamping jaw housing; 20. opening groove; 21. second gear; 22. lower tooth plate; 23. upper tooth plate; 24. connecting rod; 25. second cylinder; 26. clamping plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model provides Figure 1-4The drop-out fuse simulation test bench shown in the figure includes a bottom plate 1, a side plate 3 is fixedly connected to the surface of the bottom plate 1, a rotating shaft 4 is rotatably connected to the side wall of the side plate 3, a mounting bracket 5 is fixedly connected to the surface of the rotating shaft 4, a first gear 6 is rotatably connected to the side wall of the side plate 3, one end of the first gear 6 is fixedly connected to one end of the rotating shaft 4, a limiting groove 7 is provided on the side wall of the side plate 3, a limiting block 8 is slidably connected to the inner side wall of the limiting groove 7, a first tooth plate 9 is fixedly connected to the side wall of the limiting block 8, the first tooth plate 9 is meshed with the gear, an electric telescopic rod 10 is fixedly connected to the side wall of the side plate 3, a movable end of the electric telescopic rod 10 is fixedly connected to one end of the first tooth plate 9, a reciprocating mechanism is provided on the surface of the bottom plate 1, and the reciprocating mechanism The movable end is fixedly connected with an articulated seat 15, and an articulated part 17 is articulated on the surface of the articulated seat 15. The surface of the articulated part 17 is fixedly connected with a first cylinder 18, and the movable end of the first cylinder 18 is fixedly connected with a clamping claw shell 19, and a clamping mechanism is arranged in the clamping claw shell 19; the operation of the electric telescopic rod 10 can be controlled by the controller 2, and the movement of the movable end of the electric telescopic rod 10 drives the first tooth plate 9 to move, and the movement of the first tooth plate 9 drives the first gear 6 to rotate, and the rotation of the first gear 6 drives the rotating shaft 4 to rotate, and the rotation of the rotating shaft 4 drives the mounting bracket 5 to rotate, thereby adjusting the inclination angle of the drop-out fuse on the mounting bracket 5, and can carry out simulation experiments on drop-out fuses with different installation angles.

[0022] In this embodiment, the reciprocating mechanism includes a movable groove 11, a reciprocating screw rod 12, a screw rod sleeve 13, a movable block 14 and a drive motor 16. The surface of the bottom plate 1 is provided with evenly arranged movable grooves 11, and the inner side wall of the movable groove 11 is rotatably connected to the reciprocating screw rod 12, and the surface of the reciprocating screw rod 12 is threadedly connected to the screw rod sleeve 13, and the surface of the screw rod sleeve 13 is fixedly connected to the movable block 14, and the movable block 14 is slidably connected to the movable groove 11, and the upper surface of the movable block 14 is fixedly connected to the hinge seat 15, and the side wall of the bottom plate 1 is fixedly connected to the drive motor 16, and the power output end of the drive motor 16 is fixedly connected to one end of the reciprocating screw rod 12 ; The controller 2 is used to control the operation of the drive motor 16, and the power output end of the drive motor 16 rotates to drive the reciprocating screw 12 to rotate, and the reciprocating screw 12 rotates to drive the screw sleeve 13 to move, and the movement of the screw sleeve 13 drives the movable block 14 to move, and the movement of the movable block 14 drives the articulated seat 15 to move, and the movement of the articulated seat 15 drives the first cylinder 18 to move, and the movement of the first cylinder 18 drives the clamping claw housing 19 to move, that is, the fuse opening and closing operation lever is opened and closed, so as to realize the continuous opening and closing operation of the drop-out type fuse, which can effectively test the fatigue performance of the drop-out type fuse and ensure that the drop-out type fuse can be flexibly opened and closed.

[0023] In this embodiment, the clamping mechanism includes an open slot 20, a second gear 21, a lower tooth plate 22, an upper tooth plate 23, a connecting rod 24 and a second cylinder 25. The second gear 21 is rotatably connected inside the clamp housing 19, and the upper tooth plate 23 and the lower tooth plate 22 are slidably connected inside the clamp housing 19, and the upper tooth plate 23 and the lower tooth plate 22 are both meshed and connected with the second gear 21. The side wall of the clamp housing 19 is provided with an open slot 20, and the surfaces of the upper tooth plate 23 and the lower tooth plate 22 are fixedly connected with a connecting rod 24, and the connecting rod 24 extends to the open slot 20, and one end of the connecting rod 24 is fixedly connected with a clamping plate 26, and the clamping plate 26 slides with the open slot 20. The second cylinder 25 is connected to the jaw housing 19, and the movable end of the second cylinder 25 is fixedly connected to one end of the lower tooth plate 22; the second cylinder 25 is controlled to operate by the controller 2, and the movable end of the second cylinder 25 moves to drive the lower tooth plate 22 to move, and the movement of the lower tooth plate 22 drives the second gear 21 to rotate, and the rotation of the second gear 21 drives the upper tooth plate 23 to move, and the movement of the upper tooth plate 23 and the lower tooth plate 22 realizes the relative movement or reverse movement of the two clamping plates 26, and the fuse pull-off lever is clamped and fixed by the relative movement of the clamping plates 26, and the limit operation of the fuse pull-off lever is simple and convenient, and easy to use.

[0024] In this embodiment, a controller 2 is fixedly connected to the surface of the base plate 1, and the drive motor 16, the electric telescopic rod 10, the first cylinder 18 and the second cylinder 25 are electrically connected to an external power supply through the controller 2; the operation of the drive motor 16, the electric telescopic rod 10, the first cylinder 18 and the second cylinder 25 can be controlled by the controller 2, and the control operation is simple and convenient, and easy to use.

[0025] Working principle of the utility model: the utility model is a drop-type fuse simulation test bench, which controls the operation of the electric telescopic rod 10 through the controller 2, the movable end of the electric telescopic rod 10 moves to drive the first tooth plate 9 to move, the movement of the first tooth plate 9 drives the first gear 6 to rotate, the rotation of the first gear 6 drives the rotating shaft 4 to rotate, the rotation of the rotating shaft 4 drives the mounting bracket 5 to rotate, thereby adjusting the inclination angle of the drop-type fuse on the mounting bracket 5, and can perform simulation experiments on drop-type fuses with different installation angles; the second cylinder 25 is controlled to operate through the controller 2, the movable end of the second cylinder 25 moves to drive the lower tooth plate 22 to move, the movement of the lower tooth plate 22 drives the second gear 21 to rotate, and the rotation of the second gear 21 drives the upper tooth plate 23 moves, and the two clamping plates 26 move toward or in the opposite direction through the movement of the upper tooth plate 23 and the lower tooth plate 22. The fuse pull-off lever is clamped and fixed by the movement of the clamping plates 26 toward each other. The driving motor 16 is controlled to operate by the controller 2. The power output end of the driving motor 16 rotates to drive the reciprocating screw rod 12 to rotate, and the reciprocating screw rod 12 rotates to drive the screw rod sleeve 13 to move. The screw rod sleeve 13 moves to drive the movable block 14 to move. The movable block 14 moves to drive the articulated seat 15 to move. The articulated seat 15 moves to drive the first cylinder 18 to move. The first cylinder 18 moves to drive the clamping claw housing 19 to move, that is, the fuse pull-off lever is opened and closed, so as to realize the continuous opening and closing operation of the drop-out fuse.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Drop-out fuse simulation test bench, characterized by: The invention comprises a bottom plate (1), the surface of the bottom plate (1) is fixedly connected to a side plate (3), the side wall of the side plate (3) is rotatably connected to a rotating shaft (4), the surface of the rotating shaft (4) is fixedly connected to a mounting bracket (5), the side wall of the side plate (3) is rotatably connected to a first gear (6), one end of the first gear (6) is fixedly connected to one end of the rotating shaft (4), a limiting groove (7) is provided on the side wall of the side plate (3), the inner side wall of the limiting groove (7) is slidably connected to a limiting block (8), the side wall of the limiting block (8) is fixedly connected to a first tooth plate (9), and the first tooth plate (9) is connected to The gears are meshed and connected, the side wall of the side plate (3) is fixedly connected to an electric telescopic rod (10), the movable end of the electric telescopic rod (10) is fixedly connected to one end of the first tooth plate (9), the surface of the bottom plate (1) is provided with a reciprocating mechanism, the movable end of the reciprocating mechanism is fixedly connected to an articulated seat (15), the surface of the articulated seat (15) is articulated with an articulated member (17), the surface of the articulated member (17) is fixedly connected to a first cylinder (18), the movable end of the first cylinder (18) is fixedly connected to a clamping claw housing (19), and a clamping mechanism is provided inside the clamping claw housing (19).

2. The drop-out fuse simulation test bench according to claim 1 is characterized in that: The reciprocating mechanism comprises a movable groove (11), a reciprocating screw rod (12), a screw rod sleeve (13), a movable block (14) and a driving motor (16); the surface of the bottom plate (1) is provided with evenly arranged movable grooves (11); the inner side wall of the movable groove (11) is rotatably connected to the reciprocating screw rod (12); and the surface of the reciprocating screw rod (12) is threadedly connected to the screw rod sleeve (13).

3. The drop-out fuse simulation test bench according to claim 2 is characterized in that: A movable block (14) is fixedly connected to the surface of the screw rod sleeve (13); the movable block (14) is slidably connected to the movable groove (11); and a hinge seat (15) is fixedly connected to the upper surface of the movable block (14).

4. The drop-out fuse simulation test bench according to claim 1 is characterized in that: A drive motor (16) is fixedly connected to the side wall of the bottom plate (1), and a power output end of the drive motor (16) is fixedly connected to one end of the reciprocating screw rod (12).

5. The drop-out fuse simulation test bench according to claim 1 is characterized in that: The clamping mechanism comprises an opening groove (20), a second gear (21), a lower tooth plate (22), an upper tooth plate (23), a connecting rod (24) and a second cylinder (25); the second gear (21) is rotatably connected inside the clamping jaw housing (19); the upper tooth plate (23) and the lower tooth plate (22) are slidably connected inside the clamping jaw housing (19); and the upper tooth plate (23) and the lower tooth plate (22) are both meshed and connected with the second gear (21).

6. The drop-out fuse simulation test bench according to claim 1, characterized in that: The side wall of the clamp housing (19) is provided with an open groove (20), and the surfaces of the upper tooth plate (23) and the lower tooth plate (22) are fixedly connected with a connecting rod (24), and the connecting rod (24) extends to the open groove (20), and one end of the connecting rod (24) is fixedly connected with a clamping plate (26), and the clamping plate (26) is slidably connected to the open groove (20).

7. The drop-out fuse simulation test bench according to claim 4, characterized in that: A second cylinder (25) is fixedly connected inside the clamp housing (19), and a movable end of the second cylinder (25) is fixedly connected to one end of the lower tooth plate (22).

8. The drop-out fuse simulation test bench according to claim 7, characterized in that: A controller (2) is fixedly connected to the surface of the base plate (1), and the drive motor (16), the electric telescopic rod (10), the first cylinder (18) and the second cylinder (25) are electrically connected to an external power source via the controller (2).

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