Drop-out fuse mechanical life test device

Abstract

The utility model provides a drop-out fuse mechanical life test device, which comprises a workbench, a first supporting seat, a closing and opening mechanism, a second supporting seat, a fixing mechanism and a locking device, and is characterized in that the first supporting seat is arranged on the workbench; the switching-on and switching-off mechanism is arranged on the first supporting seat and is used for driving switching-off and switching-on of the drop-out fuse; the second supporting seat is arranged on the workbench, a sliding channel is formed in the second supporting seat in a vertical mode, and the second supporting seat is further provided with a connecting channel used for communicating the sliding channel with the outer side wall of the second supporting seat; the fixing mechanism is arranged on the outer side wall of the second supporting seat and is movably connected with the second supporting seat; and the locking device is used for locking the fixing mechanism on the second supporting seat. According to the mechanical life test device for the drop-out fuse, the opening and closing mechanism is arranged to control the opening and closing of the drop-out fuse, so that the test efficiency and the test precision can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of drop-out fuse testing, and in particular to a device for testing the mechanical life of drop-out fuses. Background Technology

[0002] Drop-out fuses are indispensable protective components in power systems. They can quickly disconnect the circuit in the event of short circuits or other faults, protecting equipment and personnel. To ensure that fuses operate reliably under various conditions, mechanical operation tests are required to verify whether the fuses can reliably open and close under different environmental conditions such as temperature and humidity, as well as under frequent operation.

[0003] By simulating the mechanical stress of fuses during actual operation, their lifespan can be assessed, allowing for timely replacement of aging fuses. For newly developed fuse products, mechanical operation tests can verify the rationality of their design and their compliance with relevant standards. Power industry standards in various countries and regions have set specific requirements for the mechanical performance of fuses, and mechanical operation tests are an important means of verifying whether fuses meet these requirements.

[0004] Currently, most mechanical operation tests of drop-out fuses are conducted manually. This method is the most traditional, but it may have the following drawbacks:

[0005] First, the testing efficiency is low: manual operation testing is inefficient and cannot meet the testing needs of a large number of fuses.

[0006] Second, the testing accuracy is not high: manual operation is subjective, and the accuracy of the test results is poor, resulting in low testing accuracy.

[0007] In view of this, the inventor has specifically designed a test device for the mechanical life of a drop-out fuse, which leads to this invention. Utility Model Content

[0008] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a mechanical life testing device for drop-out fuses. By setting up a switching mechanism to control the switching of the drop-out fuse, it can be controlled by a PLC, overcoming the shortcomings of the current manual operation.

[0009] A mechanical life testing device for a drop-out fuse according to the present invention includes:

[0010] Workbench;

[0011] A first support base is disposed on the worktable;

[0012] A closing and opening mechanism is provided on the first support base and is used to drive the drop-out fuse to open and close.

[0013] The second support is disposed on the worktable. The second support has a sliding channel arranged vertically and a connecting channel for connecting the sliding channel with the outer wall of the second support.

[0014] A fixing mechanism is provided for fixing the drop-out fuse, which is disposed on the outer side wall of the second support and is movably connected to the second support.

[0015] A locking device that locks the fixing mechanism onto the second support base;

[0016] The locking device includes a locking member and a locking seat located in the sliding channel. The locking member passes through the fixing mechanism and the connecting channel and is connected to the locking seat located in the sliding channel.

[0017] The mechanical life testing device for drop-out fuses of this invention uses a switching mechanism to control the switching on and off of the drop-out fuses. Therefore, it can be controlled by a PLC, which improves the testing efficiency and accuracy.

[0018] In some embodiments of this utility model, the workbench adopts a support plate, and a frame for support is provided below the support plate.

[0019] In some embodiments of this utility model, two first support seats are provided, and are respectively located on both sides of the second support seat. The first support seat is provided with the closing and opening mechanism, and the two closing and opening mechanisms are arranged opposite to each other. The fixing mechanism is provided on both sides of the second support seat corresponding to the two first support seats.

[0020] In some embodiments of this utility model, a display is also provided on the workbench for displaying test data or displaying a control interface.

[0021] In some embodiments of this utility model, the first support base includes a first profile component arranged perpendicularly to the workbench, a second profile component disposed above the first profile component and perpendicularly connected to it, and a third profile component disposed on the second profile component and perpendicularly connected to it, wherein the closing and opening mechanism is disposed on the third profile component.

[0022] In some embodiments of this utility model, the closing and opening mechanism includes a first fixed seat disposed on a first support base and a closing and opening cylinder disposed on the first fixed seat and rotatably connected to the first fixed seat.

[0023] In some embodiments of this utility model, the locking element is a first bolt.

[0024] In some embodiments of this utility model, two limiting strips are provided on one side of the sliding channel near the connecting channel, and a plurality of first tooth grooves are provided on the limiting strips. The locking seat is provided with second tooth grooves that cooperate with the first tooth grooves, and the locking seat is also provided with a first internal thread hole for cooperating with the locking member.

[0025] In some embodiments of this utility model, the fixing mechanism includes a mounting base with a mounting groove on its side wall, a clamping member located inside the mounting base and used to press down the drop-out fuse, and a rotating member threadedly connected to the mounting base with one end located inside the mounting base and connected to the clamping member, and the other end located outside the mounting base; the rotating member rotates to drive the clamping member to move upward or downward along the vertical direction.

[0026] In some embodiments of this utility model, a support component is further provided on the first support base. The support component includes a third support base and a support plate embedded in the third support base. An arc-shaped groove is provided above the support plate for supporting the opening and closing cylinder.

[0027] In some embodiments of this utility model, a groove is provided above the third support base for installing a support plate, and then the support plate is screwed to the third support base and abuts against the outer wall of the support plate. A rubber part is also provided in the arc groove above the support plate for cushioning. Specifically, the third support base is locked to the second profile part by bolts and nuts. Attached Figure Description

[0028] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0029] in:

[0030] Figure 1 This is a schematic diagram of the mechanical life testing device for drop-out fuses of this utility model;

[0031] Figure 2 This is a partial schematic diagram of the mechanical life testing device for drop-out fuses of this utility model. Figure 1 ;

[0032] Figure 3 This is a partial schematic diagram of the mechanical life testing device for drop-out fuses of this utility model. Figure 2 ;

[0033] Figure 4 This is a structural schematic diagram of the fixing mechanism of this utility model;

[0034] Figure 5 The explosion of the fixing mechanism of this utility model Figure 1 ;

[0035] Figure 6 The explosion of the fixing mechanism of this utility model Figure 2 ;

[0036] Figure 7 This is an installation diagram of the fixing mechanism of this utility model;

[0037] Figure 8 This is an exploded view of the installation of the fixing mechanism of this utility model;

[0038] Figure 9 This utility model Figure 8 Local magnification Figure 1 ;

[0039] Figure 10 This utility model Figure 8 Local magnification Figure 2 ;

[0040] Figure 11 This is a schematic diagram of the structure of the support component of this utility model;

[0041] Figure 12 This is an exploded view of the support component of this utility model.

[0042] Label Explanation:

[0043] 001. Drop-out fuse; 10. Workbench; 11. Frame; 12. Casters; 20. First support base; 21. First profile component; 22. Second profile component; 23. Third profile component; 30. Closing / opening mechanism; 31. First fixed base; 32. Closing / opening cylinder; 40. Second support base; 41. Sliding channel; 42. Connecting channel; 43. Limiting strip; 431. First toothed groove; 50. Fixing mechanism; 51. Mounting base; 511. Mounting groove; 52. Clamping component; 53. Rotating component; 54. Handwheel; 55. Limiting component; 56. Second fixed base; 60. Locking mechanism; 61. Locking component; 62. Locking seat; 621. Second toothed groove; 622. First internal threaded hole; 70. Display; 80. Support assembly; 81. Third support base; 82. Support plate; 83. Rubber component. Detailed Implementation

[0044] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0045] Please see Figures 1 to 12This invention relates to a test device for the mechanical life of a drop-out fuse, comprising a workbench 10, a first support base 20, a closing / opening mechanism 30, a second support base 40, a fixing mechanism 50, and a locking device. The first support base 20 is mounted on the workbench 10; the closing / opening mechanism 30 is mounted on the first support base 20 and is used to drive the drop-out fuse 001 to open and close; the second support base 40 is mounted on the workbench 10, and a sliding channel 41 is provided vertically on the second support base 40. A connecting channel 42 is also provided to connect the sliding channel 41 and the outer wall of the second support base 40; a fixing mechanism 50 is used to fix the drop-out fuse 001, which is disposed on the outer wall of the second support base 40 and movably connected to the second support base 40; a locking device locks the fixing mechanism 50 onto the second support base 40; the locking device includes a locking member 61 and a locking seat 62 located in the sliding channel 41, the locking member 61 passing through the fixing mechanism 50 and the connecting channel 42 and connecting to the locking seat 62 located in the sliding channel 41. The mechanical life test device for the drop-out fuse 001 of this utility model, by setting a switching mechanism to control the switching on and off of the drop-out fuse 001, can be controlled by a PLC, thus improving the testing efficiency and accuracy.

[0046] The first support base 20 in this invention supports the closing / opening cylinder 32 and is also flexible and adjustable to adapt to different fuse shapes. The closing / opening cylinder 32 is a 60N cylinder, controlled by a PLC to extend or retract. When extended, it connects to the fuse operating ring via a connecting mechanism to push the fuse element into the closed position. When retracted, it connects to the fuse operating ring via the connecting mechanism to pull the fuse out to the open position. The fixing mechanism 50 is adjustablely mounted on the second support base 40 for fixing the fuse test sample. The fixing mechanism 50 can move freely up and down to adapt to fuses of different lengths. The handwheel 54 of the fixing mechanism 50 can quickly set the device. The control system consists of a PC host computer and a PLC. The PLC is mainly used for recording product test information and setting the number of tests. The PLC controls the fuse closing / opening logic to improve the automation level of the mechanical life test device.

[0047] Please refer to details. Figure 1The workbench 10 uses a support plate 82, and a frame 11 for support is set below the support plate 82. Casters 12 are set below the frame 11 for moving the entire test device. In this embodiment, six casters 12 are provided for more stable movement of the entire test device. Two first support bases 20 are provided, located on both sides of a second support base 40. Each first support base 20 is equipped with a closing / opening mechanism 30, and the two closing / opening mechanisms 30 are arranged opposite each other. Fixing mechanisms 50 are provided on both sides of the second support base 40 corresponding to the two first support bases 20. Specifically, two first support bases 20 are symmetrically arranged on both sides of the second support base 40. Therefore, the two closing and opening mechanisms 30 can also be symmetrically arranged. The height of the fixing mechanisms 50 located on both sides of the second support base 40 can be set as needed. At the same time, three or four first support bases 20 can be set as needed, and the corresponding closing and opening mechanisms 30 and fixing mechanisms 50 can be increased as needed. For example, when four first support bases 20 are set, they can be set on the four sides of the second support base 40 respectively, arranged in a 90-degree manner around the second support base 40. A display 70 is also set on the workbench 10 to display test data or display the control interface.

[0048] Please refer to details. Figure 1-3 The first support base 20 includes a first profile 21 perpendicularly arranged to the workbench 10, a second profile 22 disposed above and perpendicularly connected to the first profile 21, and a third profile 23 disposed on and perpendicularly connected to the second profile 22. The closing / opening mechanism 30 is disposed on the third profile 23. The first profile 21, the second profile 22, the third profile 23, and the second support base 40 can all be made of aluminum profiles, and can be fixed at the connection points by L-shaped connecting angles.

[0049] The closing / opening mechanism 30 includes a first fixed base 31 mounted on a first support base 20, and a closing / opening cylinder 32 mounted on and rotatably connected to the first fixed base 31. The output end of the closing / opening cylinder 32 is connected to a drop-out fuse 001. The first fixed base 31 is made of sheet metal and includes a horizontal portion for attaching to the side wall of the third profile 23, and connecting portions on both sides of the horizontal portion and perpendicular to the horizontal portion. The bottom of the closing / opening cylinder 32 is located between the two connecting portions, and a rotating shaft passes through it to achieve the rotatable connection for closing and opening. After the rotating shaft passes through, both ends of the rotating shaft can be secured with C-type buckles to prevent the rotating shaft from moving. The horizontal portion can be fixed using the fixing mechanism 50 of this invention, or by using bolts and nuts. The number of fixing structures or the number of bolts and nuts can be selected as needed.

[0050] The locking element 61 uses the first bolt. Two limiting strips 43 are provided on one side of the sliding channel 41 near the connecting channel 42. Several first toothed grooves 431 are provided on the limiting strips 43. The locking seat 62 is provided with second toothed grooves 621 that cooperate with the first toothed grooves 431. The locking seat 62 is also provided with a first internal threaded hole 622 for cooperating with the locking element 61. Two limiting strips 43 are located inside the sliding channel 41 and on both sides of the connecting channel 42. Two rows of second toothed grooves 621 are provided, corresponding to the two limiting strips 43. The first internal threaded hole 622 is located between the two rows of second toothed grooves 621. The locking member 61 passes through the fixing mechanism 50, the connecting channel 42, and the two limiting strips 43 and is threadedly connected to the locking seat 62. After locking, the second toothed groove 621 is embedded in the first toothed groove 431, which can prevent the fixing mechanism 50 from slipping. When it is necessary to adjust the height position of the fixing mechanism 50, the locking member 61 is loosened. It does not need to be completely loosened. It is only necessary to ensure that the second toothed groove 621 is disengaged from the first toothed groove 431. After the second toothed groove 621 is disengaged from the first toothed groove 431, the entire fixing mechanism 50 can be moved. One or more sliding channels 41 can be provided on the same side of the second support base 40, one or two corresponding connecting channels 42, and one or two locking mechanisms 60. This utility model provides two locking mechanisms 60 to better fix the fixing mechanism 50 to the side wall of the second support base 40.

[0051] The fixing mechanism 50 includes a mounting base 51 with a mounting groove 511 on its side wall, a clamping member 52 located inside the mounting base 51 and used to press down the drop-out fuse 001, and a rotating member 53 threadedly connected to the mounting base 51, with one end located inside the mounting base 51 and connected to the clamping member 52, and the other end located outside the mounting base 51. The rotation of the rotating member 53 drives the clamping member 52 to move upward or downward in the vertical direction. The fixing mechanism 50 also includes a handwheel 54 disposed on the rotating member 53 and used to drive the rotating member 53 to rotate. By rotating the handwheel 54, the rotating member 53 and the clamping member 52 are driven to rotate. When the clamping member 52 presses down, it can press down the drop-out fuse 001. The fixing mechanism 50 also includes a limiting member 55 for limiting the drop-out fuse 001. Two limiting members 55 are provided, which can be connected by a second bolt from the bottom of the mounting base 51. The end of the limiting member 55 extends into the mounting groove 511. The clamping member 52 can be locked to the bottom of the rotating member 53 by screws. The mounting base 51 is provided with an L-shaped second fixing base 56 on the upper and lower parts for mounting on the side wall of the second support base 40. The second fixing base 56 is provided with a hole for the locking member 61 to pass through. The locking member 61 first passes through the hole, then through the connecting channel 42 and is screwed to the locking base 62.

[0052] Please refer to details. Figure 11 , 12The mechanical life testing device also includes a support assembly 80 mounted on the first support base 20. The support assembly 80 includes a third support base 81 and a support plate 82 embedded in the third support base 81. An arc-shaped groove is provided on the upper part of the support plate 82 to support the opening and closing cylinder. A groove is provided on the upper part of the third support base 81 for mounting the support plate 82, and then screws are used to connect the support plate 82 to the third support base 81 and abut against the outer wall of the support plate 82. A rubber part 83 is also provided in the arc-shaped groove on the upper part of the support plate 82 to provide a cushioning effect. Specifically, the third support base 81 is locked onto the second profile part 22 by bolts and nuts.

[0053] The opening and closing cylinder 32 of this utility model is rotatably connected and is equipped with an adjustable fixing mechanism 50 to facilitate testing of more types of drop-out fuses 001, greatly improving the utilization rate of the equipment.

[0054] In summary, the mechanical life testing device for drop-out fuses of this invention, by setting up a switching mechanism to control the switching of drop-out fuses, can be controlled by a PLC, thus improving testing efficiency and accuracy. Compared with manual testing, it is faster and less expensive, making it suitable for widespread application and of great significance for ensuring the reliable operation of power systems.

[0055] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A test device for the mechanical life of a drop-out fuse, characterized in that, include; Workbench; A first support base is disposed on the worktable; A closing and opening mechanism is provided on the first support base and is used to drive the drop-out fuse to open and close. The second support is disposed on the worktable. The second support has a sliding channel arranged vertically and a connecting channel for connecting the sliding channel with the outer wall of the second support. A fixing mechanism is provided for fixing the drop-out fuse, which is disposed on the outer side wall of the second support and is movably connected to the second support. A locking device that locks the fixing mechanism onto the second support base; The locking device includes a locking member and a locking seat located in the sliding channel. The locking member passes through the fixing mechanism and the connecting channel and is connected to the locking seat located in the sliding channel.

2. The mechanical life testing device for drop-out fuses according to claim 1, characterized in that, The workbench uses a support plate, and a frame for support is provided below the support plate.

3. The mechanical life testing device for drop-out fuses according to claim 1, characterized in that, Two first support bases are provided, and they are respectively located on both sides of the second support base. Each first support base is provided with the closing and opening mechanism, and the two closing and opening mechanisms are arranged opposite to each other. The two sides of the second support base are provided with the fixing mechanism corresponding to the two first support bases.

4. The mechanical life testing device for drop-out fuses according to claim 1, characterized in that, The workbench is also equipped with a monitor for displaying test data or a control interface.

5. The mechanical life testing device for a drop-out fuse according to claim 1, characterized in that, The first support includes a first profile component that is perpendicular to the workbench, a second profile component that is disposed above the first profile component and perpendicularly connected to it, and a third profile component that is disposed on the second profile component and perpendicularly connected to it. The closing and opening mechanism is disposed on the third profile component.

6. The mechanical life testing device for a drop-out fuse according to claim 1, characterized in that, The closing and opening mechanism includes a first fixed seat disposed on a first support base and a closing and opening cylinder disposed on the first fixed seat and rotatably connected to the first fixed seat.

7. The mechanical life testing device for a drop-out fuse according to claim 1, characterized in that, The locking element is the first bolt.

8. The mechanical life testing device for drop-out fuses according to claim 1, characterized in that, Two limiting strips are provided on one side of the sliding channel near the connecting channel. The limiting strips are provided with a plurality of first tooth grooves. The locking seat is provided with second tooth grooves that cooperate with the first tooth grooves. The locking seat is also provided with a first internal threaded hole for cooperating with the locking component.

9. The mechanical life testing device for drop-out fuses according to claim 1, characterized in that, The fixing mechanism includes a mounting base with a mounting groove on its side wall, a clamping member located inside the mounting base and used to press down the drop-out fuse, and a rotating member that is threaded to the mounting base, with one end located inside the mounting base and connected to the clamping member and the other end located outside the mounting base. The rotating component rotates, causing the clamping component to move upward or downward along the vertical direction.

10. The mechanical life testing device for a drop-out fuse according to claim 1, characterized in that, It also includes a support assembly disposed on the first support base, the support assembly including a third support base and a support plate embedded in the third support base, and an arc-shaped groove is provided on the upper part of the support plate for supporting the opening and closing cylinder.

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