Moving contact speed measuring device of high-voltage switch

Abstract

The utility model discloses a moving contact speed measuring device of a high-voltage switch, which comprises a magnetic suction device, a connecting rod is fixedly connected on the front side wall of the magnetic suction device, and a moving block is fixedly connected on the front side wall of the connecting rod. By arranging a magnetic attraction device, a connecting rod, a moving block, a sliding block, a large fastening bolt, a supporting rod, a sliding groove, a bearing seat, a main rod, a connecting sleeve, a small fastening bolt, a pointer, a fluorescent block, a meter shell, a dial plate, a scale mark, a photosensitive sensor and a connecting wire, the main rod is connected with an external operating mechanism of a high-voltage switch moving contact. The fluorescent blocks on the pointer point to different photosensitive sensors, so that the photosensitive sensors generate pulse signals and transmit the pulse signals to the outside, and the angular velocity of the pointer can be directly determined by calculating the number of pulses in unit time, so that the angular velocity of the moving contact is measured, and the measurement is accurate and rapid.

Description

Technical Field

[0001] The utility model relates to the measurement field of high-voltage switches, in particular to a moving contact speed measuring device of a high-voltage switch. Background Art

[0002] High-voltage switches are critical devices used to control and protect high-voltage circuits in power systems. They connect and disconnect load currents during normal operation and automatically and quickly disconnect fault currents in the event of a fault or severe overload, preventing accidents. Major types of high-voltage switches include high-voltage circuit breakers, disconnectors, load switches, and fuses. The speed and overtravel of the moving contacts of high-voltage switches are crucial parameters for high-voltage switches. Speed and overtravel are two key performance criteria for isolating, grounding, and fast-acting grounding switches. Conveniently, quickly, and accurately acquiring these two test data points is crucial for product testing.

[0003] The existing method of measuring the speed of the moving contact of a high-voltage switch is generally achieved through intuitive measurement. However, this is very inconvenient for measuring a high-voltage switch that is already in operation. Moreover, when the light in the external environment is weak, it will cause increased measurement errors and inaccurate measurements. For example, CN201320372325.3 describes a real-time detector for detecting the switch status during rotation of a rotary switch. The detector includes a servo motor, a servo motor driver that drives the servo motor, a programmable logic controller (PLC) that controls the servo motor driver, and a CPU for writing and downloading PLC programs. The PLC is connected to a control panel, a servo motor driver, and a CPU, respectively. The servo motor is connected to the servo motor driver. A coupling is installed on the main shaft of the servo motor. The other end of the coupling is connected to the product to be detected via a fixture. The pins of the product to be detected are connected to the PLC via cables. Utility Model Content

[0004] The purpose of the utility model is to provide a moving contact speed measuring device for a high-voltage switch, which connects a main rod to an external operating mechanism of the moving contact of the high-voltage switch. When the operating mechanism moves, the main rod rotates together, and the fluorescent blocks on the pointer point to different photosensors, causing the photosensors to generate pulse signals and transmit them outward. By calculating the number of pulses per unit time, the angular velocity of the pointer can be directly determined, thereby measuring the angular velocity of the moving contact. The measurement is accurate and fast. The fluorescent blocks, scale marks and photosensors enable the device to clearly see the measurement data even in low light conditions, thereby improving the accuracy of the measurement.

[0005] To achieve the above-mentioned purpose, a moving contact speed measuring device for a high-voltage switch is provided, comprising: a magnetic device, a connecting rod fixedly connected to the front side wall of the magnetic device, a moving block fixedly connected to the front side wall of the connecting rod, a slider fixedly connected to the left side wall of the moving block, a large fastening bolt threaded through the right side wall of the moving block, a support rod provided on the left side of the moving block, a slide groove provided on the right side wall of the support rod, a bearing seat fixedly connected to the top of the support rod, a speed measuring assembly rotatably provided inside the bearing seat, and the speed measuring assembly comprising a main rod, a connecting sleeve, a small fastening bolt, a pointer, and a fluorescent block , watch case, dial, scale mark, photosensor and connecting wire, the main rod is located inside the bearing seat and is rotatably connected, the circumferential surface of the main rod is threaded with a connecting sleeve, the circumferential surface of the connecting sleeve is threaded with a small fastening bolt, the front side wall of the main rod is fixedly connected with a pointer, the bottom of the pointer is fixedly connected with a fluorescent block, the front side wall of the support rod is fixedly connected with the watch case, the front side wall of the watch case is fixedly connected with a dial, the dial is transparent glass, and scale marks are set on the dial, the inner circumferential surface of the watch case is fixedly connected with a photosensor, and the bottom of the watch case is fixedly connected with a connecting wire.

[0006] According to the moving contact speed measuring device of a high-voltage switch, the pointer and the fluorescent block are both located inside the case, and the main rod is rotatably connected to the case.

[0007] According to the moving contact speed measuring device for a high-voltage switch, the scale mark is made of fluorescent material, and the photosensor is arranged corresponding to the scale mark, so that the device can also accurately measure in a weak light environment.

[0008] According to the moving contact speed measuring device of a high-voltage switch, the slider is located inside the slide groove, and the large fastening bolt passes through the slider. The moving block and the support rod can be fixed by the large fastening bolt.

[0009] According to the device for measuring the speed of a moving contact of a high-voltage switch, the photosensor is electrically connected to a connecting wire, which is connected to an external pulse device, so as to conveniently count the pulse signals generated by the photosensor and thereby obtain the angular velocity of the moving contact.

[0010] According to the moving contact speed measuring device of a high-voltage switch, a plurality of the light-sensitive sensors are provided and are evenly distributed on the inner circumference of the case.

[0011] According to the moving contact speed measuring device of a high-voltage switch, the connecting sleeve is located behind the bearing seat, and the small fastening bolt passes through the connecting sleeve and fits with the main rod.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The main rod is connected to the operating mechanism of the external high-voltage switch moving contact by arranging a magnetic device, a connecting rod, a moving block, a slider, a large fastening bolt, a support rod, a slide groove, a bearing seat, a main rod, a connecting sleeve, a small fastening bolt, a pointer, a fluorescent block, a watch case, a dial, a scale mark, a photosensor and a connecting line. When the operating mechanism moves, the main rod rotates together, and the fluorescent block on the pointer points to different photosensors, causing the photosensors to generate pulse signals and transmit them outward. By calculating the number of pulses per unit time, the angular velocity of the pointer can be directly determined, thereby measuring the angular velocity of the moving contact. The measurement is accurate and fast.

[0014] 2. By setting up fluorescent blocks, scale marks and photosensors, the device can clearly see the measurement data even in low light conditions (the product to be tested is connected to the PLC and display screen through cables), thereby improving the accuracy of measurement.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a front view of a moving contact speed measuring device for a high-voltage switch according to the present utility model;

[0018] Figure 2 This is a cross-sectional view of a speed measuring component of a moving contact speed measuring device for a high-voltage switch according to the present invention;

[0019] Figure 3 for Figure 2 A magnified view of middle A;

[0020] Figure 4 The utility model is a side view of a moving contact speed measuring device of a high-voltage switch.

[0021] In the figure: 1. Magnetic device; 2. Connecting rod; 3. Moving block; 4. Slider; 5. Large fastening bolt; 6. Support rod; 7. Slide; 8. Bearing seat; 9. Speed measuring assembly; 901. Main rod; 902. Connecting sleeve; 903. Small fastening bolt; 904. Pointer; 905. Fluorescent block; 906. Case; 907. Dial; 908. Scale mark; 909. Photosensor; 910. Connecting wire. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a moving contact speed measuring device of a high-voltage switch, comprising: a magnetic device 1 (this is the existing technology and will not be described here). The magnetic device 1 is provided with a switch. When the switch is turned on, the magnetic device 1 can be adsorbed on the operating mechanism of the moving contact. The front side wall of the magnetic device 1 is fixedly connected to the connecting rod 2, and the front side wall of the connecting rod 2 is fixedly connected to the moving block 3. The left side wall of the moving block 3 is fixedly connected to the slider 4. The right side wall of the moving block 3 is threadedly connected with a large fastening bolt 5. The left side of the moving block 3 is provided with a support rod 6, and the right side wall of the support rod 6 is provided with a slide groove 7. The slider 4 is located inside the slide groove 7. The large fastening bolt 5 passes through the slider 4. By screwing the large fastening bolt 5, the moving block 3 can be fixed to any position of the support rod 6, which is convenient for subsequent measurement operations. The top of the support rod 6 is fixedly connected to a bearing seat 8 for stabilizing the main rod 901. The speed measuring component 9 is provided for rotation inside the bearing seat 8.

[0024] The speed measuring assembly 9 includes a main rod 901, a connecting sleeve 902, a small fastening bolt 903, a pointer 904, a fluorescent block 905, a watch case 906, a dial 907, a scale mark 908, a light sensor 909 and a connecting line 910. The main rod 901 is located inside the bearing seat 8 and is rotatably connected. The connecting sleeve 902 is threadedly connected to the circumference of the main rod 901. The small fastening bolt 903 is threadedly connected to the circumference of the connecting sleeve 902. The small fastening bolt 903 is threadedly connected to the circumference of the connecting sleeve 902. 03 passes through the connecting sleeve 902 and fits with the main rod 901. It can be connected to the moving contact operating mechanism through the connecting sleeve 902. When the operating mechanism rotates, it can directly drive the main rod 901 to rotate. The connecting sleeve 902 is located behind the bearing seat 8. A pointer 904 is fixedly connected to the front side wall of the main rod 901. A fluorescent block 905 is fixedly connected to the bottom of the pointer 904. The pointer 904 and the fluorescent block 905 point to the photosensor 909. The front side wall of the support rod 6 is fixed The case 906 is fixedly connected, the pointer 904 and the fluorescent block 905 are both located inside the case 906, the main rod 901 is rotatably connected to the case 906, and a dial 907 is fixedly connected to the front side wall of the case 906. The dial 907 is transparent glass and is provided with a scale mark 908. A light sensor 909 is fixedly connected to the inner circumference of the case 906. There are multiple light sensors 909, which are evenly distributed on the inner circumference of the case 906. The scale mark 908 is made of fluorescent material, so that the device can also accurately measure in a weak light environment. The light sensor 909 is arranged corresponding to the scale mark 908. A connecting wire 910 is fixedly connected to the bottom of the case 906. The light sensor 909 is electrically connected to the connecting wire 910. The connecting wire 910 is connected to an external pulse device to facilitate the calculation of the number of pulses generated by the light sensor 909 per unit time, thereby obtaining the angular velocity of the pointer 904.

[0025] Working principle: The magnetic device 1 is adsorbed on the operating mechanism of the moving contact, the connecting sleeve 902 is connected to the moving contact operating mechanism, and fixed by a small fastening bolt 903, and the pointer 904 points to the zero scale of the scale mark 908. When the operating mechanism rotates, it directly drives the main rod 901 to rotate, and the pointer 904 rotates together with the fluorescent block 905. During the rotation process, the fluorescent block 905 sweeps across the photosensor 909, and the photosensor 909 generates a pulse signal and transmits it to the pulse device. By calculating the number of pulses per unit time, the angular velocity of the pointer 904 can be directly determined, thereby obtaining the angular velocity of the moving contact, and the measurement is accurate and fast.

[0026] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A moving contact speed measuring device for a high-voltage switch, comprising: The magnetic device (1) is characterized in that a connecting rod (2) is fixedly connected to the front side wall of the magnetic device (1), a moving block (3) is fixedly connected to the front side wall of the connecting rod (2), a slider (4) is fixedly connected to the left side wall of the moving block (3), a large fastening bolt (5) is threadedly connected to the right side wall of the moving block (3), a support rod (6) is provided on the left side of the moving block (3), a slide groove (7) is provided on the right side wall of the support rod (6), a bearing seat (8) is fixedly connected to the top of the support rod (6), a speed measuring assembly (9) is rotatably provided inside the bearing seat (8), and the speed measuring assembly (9) comprises a main rod (901), a connecting sleeve (902), a small fastening bolt (903), a pointer (904), a fluorescent block (905), a watch case (906), a dial (907), a scale mark (908), a photosensor (909) and a plurality of other components. ) and a connecting line (910), the main rod (901) is located inside the bearing seat (8) and is rotatably connected, a connecting sleeve (902) is threadedly connected on the circumferential surface of the main rod (901), a small fastening bolt (903) is threadedly connected on the circumferential surface of the connecting sleeve (902), a pointer (904) is fixedly connected to the front side wall of the main rod (901), a fluorescent block (905) is fixedly connected to the bottom of the pointer (904), a watch case (906) is fixedly connected to the front side wall of the support rod (6), a dial (907) is fixedly connected to the front side wall of the watch case (906), the dial (907) is transparent glass, and a scale mark (908) is provided on the dial (907), a photosensor (909) is fixedly connected to the inner circumferential surface of the watch case (906), and a connecting line (910) is fixedly connected to the bottom of the watch case (906).

2. The moving contact speed measuring device for a high-voltage switch according to claim 1, characterized in that: The connecting sleeve (902) is located behind the bearing seat (8), and the small fastening bolt (903) passes through the connecting sleeve (902) and fits with the main rod (901).

3. The moving contact speed measuring device for a high-voltage switch according to claim 1, characterized in that: The slider (4) is located inside the slide groove (7), and the large fastening bolt (5) passes through the slider (4).

4. The moving contact speed measuring device for a high-voltage switch according to claim 1, wherein: The pointer (904) and the fluorescent block (905) are both located inside the watch case (906), and the main rod (901) is rotatably connected to the watch case (906).

5. The moving contact speed measuring device for a high-voltage switch according to claim 1, wherein: There are a plurality of light-sensitive sensors (909), which are evenly distributed on the inner circumference of the watch case (906).

6. The moving contact speed measuring device for a high-voltage switch according to claim 1, characterized in that: The scale mark (908) is made of fluorescent material, and the photosensor (909) is arranged corresponding to the scale mark (908).

7. The moving contact speed measuring device for a high-voltage switch according to claim 1, characterized in that: The photosensor (909) is electrically connected to a connecting line (910), and the connecting line (910) is connected to an external pulse device.

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