Electricity meter calibration tool

Abstract

The utility model relates to the technical field of calibration tooling, disclose a kind of electric power instrument calibration tooling, including support frame, the support frame top is fixedly connected with side table, the side table side wall is provided with detection table, the detection table side wall is provided with adjusting assembly, the adjusting assembly includes fixed platform, the fixed platform side wall is fixedly connected in the detection table side wall, the fixed platform side wall is fixedly connected with sliding table, the sliding table slidingly connects in the side table outer wall, the side table side wall is rotatably connected with multiple leadscrew, each the lead screw top is fixedly connected with sprocket.The utility model in the middle, through motor drive sprocket, chain linkage, make multiple leadscrew synchronous rotation, drive detection table height adjustment, compared with traditional tooling position adjustment heavy, precision insufficient problem, can realize detection table and electric power instrument calibration point accurate alignment, adapt to the calibration demand of different specifications instruments, reduce the calibration error caused by position deviation, improve calibration efficiency and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of calibration tooling technology, and in particular to a calibration tooling for power meters. Background Technology

[0002] Power meters are used to monitor and measure important parameters such as voltage, current, and power in power systems, and are widely used in the operation, testing, and maintenance of power equipment. To ensure the accuracy and reliability of power meters, regular calibration is crucial, typically requiring specialized calibration fixtures. The use of calibration fixtures ensures that power meters accurately reflect the actual conditions of the power system during operation.

[0003] Traditional calibration fixtures typically consist of multiple adjustment components and measuring tools. They are used to simulate various conditions encountered by power instruments in real-world working environments, and through precise adjustment and control, complete the calibration process of the power instruments.

[0004] Traditional calibration fixtures are inconvenient to adjust in height, mainly because their adjustment mechanisms are bulky and lack flexible height adjustment functions. They typically require complex mechanical operations or manual adjustments to change the angle. This inconvenient adjustment method leads to low efficiency and inaccurate operation during the calibration process, and may even affect the accuracy of calibration results due to improper settings, thereby reducing the effectiveness of the calibration and the reliability of the instrument. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a power instrument calibration fixture, which aims to improve the problem that the height adjustment of traditional calibration fixtures is inconvenient, affecting the accuracy of calibration results, thereby reducing the effectiveness of calibration and the reliability of the instrument.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a power meter calibration fixture, including a support frame, a side platform fixedly connected to the top of the support frame, a testing platform provided on the side wall of the side platform, and an adjustment component provided on the side wall of the testing platform;

[0007] The adjustment assembly includes a fixed platform, the side wall of which is fixedly connected to the side wall of the detection platform. A slide is fixedly connected to the side wall of the fixed platform, and the slide is slidably connected to the outer wall of the side platform. Multiple lead screws are rotatably connected to the side wall of the side platform. A sprocket is fixedly connected to the top of each lead screw. A chain is meshed on the outer wall of the multiple sprockets. A motor is fixedly connected to the top of the side platform. The output end of the motor is fixedly connected to the upper surface of one of the sprockets. The slide is threadedly connected to the multiple lead screws. A support assembly is provided on the side wall of the support frame.

[0008] As a further description of the above technical solution:

[0009] The support assembly includes a support platform, which is disposed on the side wall of the support frame.

[0010] As a further description of the above technical solution:

[0011] The support frame is fixedly connected to a support platform on its side wall, and a lower platform is fixedly connected to both sides of the support platform. A side plate is fixedly connected to the upper surface of each lower platform.

[0012] As a further description of the above technical solution:

[0013] The other two sides of the support platform are fixedly connected to the upper platform, and each upper platform is fixedly connected to a side plate.

[0014] As a further description of the above technical solution:

[0015] An electric motor is fixedly connected to the two side walls of one of the side plates, and an output frame is fixedly connected to the output end of the electric motor.

[0016] As a further description of the above technical solution:

[0017] One of the side plates is fixedly connected to one side wall of another electric motor, and the output end of the other electric motor is fixedly connected to another output frame.

[0018] As a further description of the above technical solution:

[0019] Multiple output racks are stacked vertically, and each output rack has a positioning slot inside, as a further description of the above technical solution:

[0020] A connecting platform is rotatably connected to the upper surface of the support platform. A sliding column is fixedly connected inside the connecting platform. A fixing member is fixedly connected to the top of the sliding column. The sliding column is slidably connected to the interior of multiple positioning slots. The top of the fixing member is fixedly connected to the bottom of the support platform.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the motor drives the sprocket and chain to rotate synchronously, which in turn drives multiple lead screws to rotate. This rotational motion is converted into vertical sliding of the slide table, which in turn drives the test table to adjust its height. Compared with the problems of cumbersome and inaccurate position adjustment of traditional tooling, this invention can achieve precise alignment between the test table and the power instrument calibration point, adapt to the calibration requirements of instruments of different specifications, reduce calibration errors caused by position deviation, and improve calibration efficiency and accuracy.

[0023] 2. In this utility model, by starting an electric motor to drive multiple output frames to rotate synchronously, and by using a sliding column to slide within the connecting platform, the spatial angle of the support platform can be flexibly adjusted, thereby realizing multi-angle adjustment of the power instrument. This solves the problem of inconvenient angle adjustment of traditional calibration fixtures, can accurately adapt to the angle requirements of different calibration scenarios, and effectively improves the accuracy and adaptability of power instrument calibration. Attached Figure Description

[0024] Figure 1 This is a perspective view of a power instrument calibration fixture proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the side platform of a power instrument calibration fixture proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the slide table of a power instrument calibration fixture proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of a support platform for a power instrument calibration fixture proposed in this utility model.

[0028] Figure 5 This is a schematic diagram of the support platform for a power instrument calibration fixture proposed in this utility model.

[0029] Legend:

[0030] 1. Support frame; 2. Side platform; 3. Testing platform; 4. Fixed platform; 5. Motor; 6. Sprocket; 7. Chain; 8. Lead screw; 9. Slide table; 10. Support platform; 11. Lower platform; 12. Upper platform; 13. Side plate one; 14. Side plate two; 15. Electric motor; 16. Output frame; 17. Positioning slot; 18. Connecting platform; 19. Sliding column; 20. Fixing component; 21. Support platform. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-3The present invention provides an embodiment of a power meter calibration fixture, including a support frame 1. The support frame 1 is made of high-strength cast iron and is used to support the side platform 2, support components and other overall structures, providing a rigid installation foundation for the fixture, avoiding component displacement due to vibration during the calibration process, and ensuring calibration stability. This is common knowledge and will not be described in detail here. The top of the support frame 1 is fixedly connected to the side platform 2, and the side wall of the side platform 2 is provided with a testing platform 3. The side wall of the testing platform 3 is provided with an adjustment component.

[0033] The adjustment assembly includes a fixed platform 4, whose side wall is fixedly connected to the side wall of the testing platform 3. A slide 9 is fixedly connected to the side wall of the fixed platform 4, and the slide 9 is slidably connected to the outer wall of the side platform 2. The slide 9 works with a lead screw 8 for threaded transmission. Under the action of the threaded force, the slide 9 slides vertically along the outer wall of the side platform 2, achieving the effect of precisely adjusting the height of the testing platform 3. Multiple lead screws 8 are rotatably connected to the side wall of the side platform 2. Each lead screw 8 has a sprocket 6 fixedly connected to its top. Chains 7 mesh with the outer walls of the multiple sprockets 6, and the chains 7 drive the other sprockets 6 to rotate synchronously, achieving the effect of multiple lead screws 8 to rotate vertically. The lever 8 rotates at the same speed to ensure the balanced force on the slide table 9. The top of the side platform 2 is fixedly connected to the motor 5, which is a servo motor. The specific model can be Delta ECMA series, with a rated power of 0.5kW to 1.5kW. It is used to drive the sprocket 6 to rotate, providing stable power for the adjustment components. The lifting and lowering adjustment of the slide table 9 is achieved by forward and reverse control. This is existing technology and will not be described in detail here. The output end of the motor 5 is fixedly connected to the upper surface of one of the sprockets 6. The slide table 9 is threadedly connected to multiple lead screws 8. The support frame 1 is provided with support components on its side wall.

[0034] Reference Figure 4 and Figure 5The support assembly includes a support platform 21, which is used to place the power instrument to be calibrated. Its surface is covered with an anti-slip silicone pad to increase friction, thereby preventing the instrument from sliding during angle adjustment and ensuring precise alignment of the instrument with the calibration point on the testing platform 3 during calibration, thus improving calibration accuracy. The support platform 21 is located on the side wall of the support frame 1, and a support bracket 10 is fixedly connected to the side wall of the support frame 1. The support bracket 10 is made of cast steel and is used to support the core components of the support assembly, such as the lower platform 11, the upper platform 12, and the connecting platform 18. Providing a stable installation platform to distribute the pressure generated during component operation and prevent deformation of the side wall of support frame 1 due to excessive local stress is common knowledge and will not be elaborated further here. Lower platforms 11 are fixedly connected to both sides of the support platform 10, and side plates 14 are fixedly connected to the upper surface of each lower platform 11. Upper platforms 12 are fixedly connected to the other two sides of the support platform 10. The upper platforms 12 are used to raise the installation height of the side plates 13, forming a height-lowering fit with the lower platforms 11, so that the stacked output frames 16 are at different horizontal levels, avoiding… During movement, they interfere with each other to ensure smooth multi-angle adjustment. Each upper platform 12 has a side plate 13 fixedly connected to its upper surface. One side plate 14 has an electric motor 15 fixedly connected to its side wall. The output end of the electric motor 15 is fixedly connected to an output frame 16. Another electric motor 15 is fixedly connected to the side wall of one side plate 13. The output end of the other electric motor 15 is fixedly connected to another output frame 16. Multiple output frames 16 are stacked on top of each other. Each output frame 16 has a positioning groove 17 inside. The positioning groove 17 provides a sliding track for the fixing member 20. Its arc structure can convert the rotational movement of the output frame 16 into the linear displacement of the fixing member 20. The positioning grooves 17 of multiple output frames 16 jointly constrain the movement of the fixing member 20 to ensure that the fixing member 20 moves smoothly. The upper surface of the support platform 10 is rotatably connected to a connecting platform 18. A sliding column 19 is fixedly connected inside the connecting platform 18. The top of the sliding column 19 is fixedly connected to the fixing member 20. The sliding column 19 is slidably connected to the inside of multiple positioning grooves 17. The top of the fixing member 20 is fixedly connected to the bottom of the support platform 21.

[0035] Working principle: First, the motor 5 drives the sprocket 6 connected to it to rotate. The sprocket 6 drives the other sprockets 6 to rotate synchronously through the chain 7, so that multiple lead screws 8 rotate together with the sprocket 6. Since the slide table 9 is threadedly connected to the lead screw 8, the rotational motion of the lead screw 8 is converted into the vertical sliding of the slide table 9 along the outer wall of the side platform 2. The slide table 9 drives the test platform 3 to move synchronously through the fixed platform 4. By controlling the forward and reverse rotation and speed of the motor 5, the height position of the test platform 3 can be precisely adjusted to ensure that the test component and the calibration point of the power instrument are accurately aligned, adapting to the calibration requirements of instruments of different specifications. When it is necessary to adjust the angle of the power instrument, the electric motor 15 on the side wall of the second side plate 14 is started first. The electric motor 15 drives the output frame 16 to rotate. At the same time, the electric motor 15 on the side wall of the first side plate 13 is also started, driving another output frame 16 to rotate. Multiple output frames 16 rotate synchronously. Since the sliding column 19 slides inside the connecting platform 18, the rotation of the output frame 16 can push the sliding column 19, so that the sliding column 19 drives the connecting platform 18 to rotate. Then, through the connection between the fixing part 20 and the support platform 21, the angle of the support platform 21 can be adjusted. The spatial angle of the power instrument placed on the support platform 21 can be flexibly adjusted to meet the angle requirements under different calibration scenarios and improve the calibration accuracy.

Claims

1. A power instrument calibration fixture, comprising a support frame (1), characterized in that: The support frame (1) is fixedly connected to a side platform (2) at the top. A testing platform (3) is provided on the side wall of the side platform (2). An adjustment component is provided on the side wall of the testing platform (3). The adjustment assembly includes a fixed platform (4), the side wall of which is fixedly connected to the side wall of the detection platform (3), a slide (9) is fixedly connected to the side wall of the fixed platform (4), the slide (9) is slidably connected to the outer wall of the side platform (2), a plurality of lead screws (8) are rotatably connected to the side wall of the side platform (2), a sprocket (6) is fixedly connected to the top of each lead screw (8), a chain (7) is meshed on the outer wall of the plurality of sprockets (6), a motor (5) is fixedly connected to the top of the side platform (2), the output end of the motor (5) is fixedly connected to the upper surface of one of the sprockets (6), the slide (9) is threadedly connected to the plurality of lead screws (8), and a support assembly is provided on the side wall of the support frame (1).

2. The power instrument calibration fixture according to claim 1, characterized in that: The support assembly includes a support platform (21), which is disposed on the side wall of the support frame (1).

3. The power instrument calibration fixture according to claim 2, characterized in that: The support frame (1) has a support platform (10) fixedly connected to its side wall. The support platform (10) has a lower platform (11) fixedly connected to both sides. Each lower platform (11) has a side plate (14) fixedly connected to its upper surface.

4. The power instrument calibration fixture according to claim 3, characterized in that: The other two sides of the support platform (10) are fixedly connected to upper platforms (12), and each upper platform (12) is fixedly connected to a side plate (13) on its upper surface.

5. The power instrument calibration fixture according to claim 4, characterized in that: An electric motor (15) is fixedly connected to the side wall of one of the side plates (14), and an output frame (16) is fixedly connected to the output end of the electric motor (15).

6. The power instrument calibration fixture according to claim 5, characterized in that: One of the side plates (13) is fixedly connected to another electric motor (15), and the output end of the other electric motor (15) is fixedly connected to another output frame (16).

7. The power instrument calibration fixture according to claim 6, characterized in that: Multiple output racks (16) are stacked one on top of the other, and each output rack (16) has a positioning slot (17) inside.

8. The power instrument calibration fixture according to claim 7, characterized in that: The upper surface of the support platform (10) is rotatably connected to a connecting platform (18), and a sliding column (19) is fixedly connected inside the connecting platform (18). A fixing member (20) is fixedly connected to the top of the sliding column (19). The sliding column (19) is slidably connected to the interior of multiple positioning grooves (17), and the top of the fixing member (20) is fixedly connected to the bottom of the support platform (21).

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