Voltage and current transformer testing device and method

Abstract

The invention discloses a voltage and current transformer testing device and method, and belongs to the technical field of testing devices.The voltage and current transformer testing device comprises a device body, a detection mechanism and a discharging mechanism, the side face of one end of the device body is provided with a first motor, the output end of the first motor is sleeved with a transmission shaft, and the transmission shaft is in transmission connection with a first conveying belt; the voltage and current transformer testing device has the advantages that pins are elastically pushed by the first springs to be inserted into a voltage and current transformer for testing, the insertion depth can be adjusted in a self-adaptive mode, and when the depth is small, the pins can be inserted into the voltage and current transformer to be tested. When the voltage and current transformers are inserted, the pins compress the first springs, so that the pins are prevented from being damaged and bent due to overlarge pressure, the testing device is protected, the service life is prolonged, the insertion depth of the pins does not need to be repeatedly adjusted according to different voltage and current transformers, and the use convenience is greatly improved.

Description

Technical Field

[0001] This application relates to the technical field of test devices, and in particular, to a voltage and current transformer test device and method. Background Art

[0002] Voltage transformers are used in power systems to convert high voltages into low voltages to provide signals for measuring instruments and relay protection devices, and current transformers are used to convert large currents into small currents to provide signals for power metering and protection devices;

[0003] After retrieval, a patent with the Chinese patent publication number CN117110970B discloses a voltage and current transformer test device and method. Although this device does not require manual plugging and unplugging of the power supply, thus avoiding electric shock to staff, and tests voltage and current transformers through multiple sets of electrical contacts and test needles during rotation, so as to alternately test a large number of voltage and current transformers, improving the test efficiency and reducing the labor cost at the same time, when using this device, it is necessary to adjust the insertion depth of different test needles according to different voltage and current transformers, which makes the adjustment rather troublesome; in addition, when the existing device is detecting, when the test needle is under excessive pressure, the test needle will bend and deform, thus damaging the test needle and reducing the service life of the device.

[0004] Therefore, the present invention proposes an improved voltage and current transformer test device, aiming to solve the problems of complex adjustment and easy damage of test needles existing in the prior art. Summary of the Invention

[0005] One of the purposes of this application is to provide a voltage and current transformer test device and method to solve the problems of complex adjustment and easy damage of test needles existing in the prior art.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: A voltage and current transformer testing device and method, including: a device main body, a detection mechanism, and a discharging mechanism. A first motor is installed on one side surface of the device main body. A transmission shaft is sleeved outside the output end of the first motor. The transmission shaft is in transmission connection with a first conveyor belt. The first conveyor belt is located inside a groove at one end of the device main body. Two first sensors are arranged on both sides of the top of the first conveyor belt. The first sensors are used to detect the position of the workpiece. A discharging mechanism is arranged at one end of the first conveyor belt. The discharging mechanism is used for guiding the workpiece. A third motor is arranged at the bottom of the discharging mechanism. The third motor is embedded in the bottom of the device main body. The third motor is used for the turning work of the discharging mechanism. A second conveyor belt is arranged on one side of the discharging mechanism, and a third conveyor belt is arranged on the other side of the discharging mechanism. The second conveyor belt and the third conveyor belt are respectively in transmission connection with a second motor. There are two second motors. A controller is installed on one side of the device main body. The controller is used for the overall control work of the equipment. A lifting mechanism is arranged at the other end of the device main body. A lifting cylinder is installed at one end of the top of the lifting mechanism. There are two lifting cylinders. A detection mechanism is arranged at one end of the bottom of the two lifting cylinders. The detection mechanism is located above the discharging mechanism.

[0007] Preferably, the detection mechanism includes an elastic mechanism and a probe mechanism. The elastic mechanism is located at one end of the bottom of the lifting cylinder. The elastic mechanism is used for adaptively adjusting the insertion depth of the probe mechanism. The probe mechanism is installed at the bottom of the elastic mechanism. The probe mechanism is used for detecting current. The probe mechanism is electrically connected to the controller. The elastic mechanism is located at the bottom of the lifting cylinder and can adaptively adjust the insertion depth of the probe according to the hole groove depth of the voltage and current transformer. This design avoids the problems of the probe being inserted too deep or too shallow due to different hole groove depths, and there is no need to manually repeatedly adjust the insertion depth of the probe, greatly improving the versatility and convenience of the testing device. The existence of the elastic mechanism can effectively buffer the contact force between the probe and the voltage and current transformer. When the probe is inserted into the hole groove, the elastic mechanism can absorb part of the pressure, preventing the probe from bending or being damaged due to excessive force. This not only protects the probe but also extends the service life of the testing device and reduces the maintenance cost of the equipment.

[0008] Preferably, the elastic mechanism includes a connecting block, with telescopic columns arranged at both ends of the connecting block. One end of the bottom of the telescopic column is welded to the connecting block, and one end of the top of the telescopic column is welded to the connecting block. In the middle of the top of the connecting block, a first threaded rod is welded. The outer part of the first threaded rod is in sliding contact with the inner hole groove of the connecting block. One end of the top of the first threaded rod is welded with a first limiting block. The outer part of the first threaded rod is threadedly connected with a first adjusting block. A first spring is arranged on the top of the first adjusting block, and the first spring is sleeved on the outer part of the first threaded rod. The design of the telescopic column allows the elastic mechanism to perform telescopic movement in the vertical direction, thereby realizing the adaptive adjustment of the probe insertion depth; it can automatically adjust the position of the probe according to the hole groove depth of the voltage and current transformer to ensure that the probe can be accurately inserted into the hole groove. The presence of the spring provides elastic support for the telescopic movement; when the probe touches the voltage and current transformer, the spring can buffer the pressure to prevent the probe from being damaged due to excessive force; at the same time, the elastic restoring force of the spring can ensure that the probe maintains a stable contact force in hole grooves of different depths.

[0009] Preferably, the probe mechanism includes a mounting block, which is embedded at the bottom of the mounting seat. Set screws are arranged on the side surfaces at both ends of the mounting seat, and the set screws are threadedly connected with the inner parts at both ends of the mounting seat. Two pins are installed at the bottom of the mounting block. A second spring is sleeved outside the pins. One end of the top of the second spring is welded to the bottom of the mounting block. A dust-proof sleeve is arranged outside the second spring. One end of the bottom of the dust-proof sleeve is glued to the mounting block. One end of the bottom of the dust-proof sleeve is glued with a slider. The slider is made of flexible rubber, and a hole groove is opened inside the slider. The inner wall of the hole groove inside the slider is in sliding contact with the outer wall surface of the pin. A sponge is bonded to the top surface of the slider. During the up and down movement of the pin, the slider and the sponge can clean the surface of the pin to remove possible attached impurities, dust or stains; this dual cleaning mechanism can effectively avoid the increase in contact resistance caused by pin surface contamination and ensure the stability and reliability of the detection signal. The dust-proof sleeve is sleeved outside the second spring and glued to the mounting block at the bottom, which can effectively isolate external dust and impurities and prevent them from attaching to the surfaces of the pins and the spring. It not only protects the pins from contamination but also avoids pin corrosion or short circuit caused by dust accumulation, thereby extending the service life of the pins.

[0010] Preferably, the discharging mechanism includes a rotating base, which is located inside the groove on one end surface of the device body. The rotating base is sleeved outside the output end of the third motor. Inside both ends of the rotating base, a fourth motor is installed. The output of the fourth motor is sleeved with a transmission wheel. The transmission wheels are distributed at equal intervals in a straight line inside both ends of the rotating base, and adjacent transmission wheels are connected to each other by a transmission belt. The transmission wheel is sleeved outside both ends of the roller. The rollers are distributed at equal intervals in a straight line and are located inside the middle groove of the rotating base. The rotating base is installed at the output end of the third motor. By the rotation of the motor, the precise rotation of the rotating base can be realized, so that the discharging mechanism can automatically switch the working position according to the detection result, and send the qualified and unqualified voltage and current transformers to different conveyor belts respectively, realizing the automatic sorting function.

[0011] Preferably, second sensors are installed at the top of both ends of the rotating base. The second sensors are electrically connected to the controller. On both sides of the second sensors, micro-motion cylinders are provided. The micro-motion cylinders are installed on the top of the rotating base by screws. A clamping block is sleeved outside the telescopic end of the micro-motion cylinder. The surface of the clamping block is provided with a rubber coating. The second sensors installed at the top of both ends of the rotating base can detect the position information of the voltage and current transformers in real time and feedback the signal to the controller. Through the precise detection of the sensors, the controller can control the subsequent actions (such as clamping, rotation, etc.) according to the position of the transformer, ensuring that each transformer can be processed at the correct position, improving the accuracy and reliability of detection and sorting. The micro-motion cylinders are fixed on the top of the rotating base by screws, and their telescopic ends can precisely control the movement of the clamping block. The design of the micro-motion cylinders allows precise telescopic actions to be realized within a small stroke, can quickly respond to the instructions of the controller, and ensure the timeliness and accuracy of the clamping action.

[0012] Preferably, the lifting mechanism includes a column. One end of the bottom of the column is welded to the device body. On one side of the column, a second threaded rod is provided. One end of the bottom of the second threaded rod is rotatably connected to the device body. One end of the top of the second threaded rod is rotatably connected to one end of the top of the column. A knob is welded to the top of the second threaded rod. The outside of the second threaded rod is threadedly connected to one side of the lifting block. Inside one side of the lifting block, a lifting cylinder is embedded. The second threaded rod and the lifting block are threadedly connected. The rotation of the knob can drive the second threaded rod to rotate, thereby realizing the up and down movement of the lifting block. This threaded transmission method can provide precise height adjustment to ensure that the lifting cylinder can be adjusted to a suitable position according to voltage and current transformers of different specifications. The threaded connection has self-locking property, which can ensure that the lifting block remains stable after being adjusted to a specific height and will not change its position due to vibration or other external forces.

[0013] Preferably, circular holes are provided at both ends of the lifting block. The circular holes at both ends of the lifting block are in sliding contact with the outer wall of the sliding rod. There are two sliding rods, and the two sliding rods are arranged parallel to the second threaded rod. One end of the bottom of the sliding rod is welded to the device body, and one end of the top of the sliding rod is welded to both ends of the top of the column. The circular holes at both ends of the lifting block are in sliding contact with the outer wall of the sliding rod. This design enables the lifting block to always move along the axis direction of the sliding rod during the up and down movement, thus avoiding tilting or deviation of the lifting block during the movement; the linear guiding function of the sliding rod ensures that the movement trajectory of the lifting block is highly accurate, which is crucial for the accurate positioning of the detection mechanism (such as the probe), and can ensure that the probe is aligned with the hole groove of the voltage and current transformer, improving the reliability of the detection.

[0014] Preferably, strip-shaped protruding structures are distributed on the surface of the first conveyor belt at equal intervals in a straight line, and the first conveyor belt is aligned with the groove on the surface of the rotating seat. The rotating seat is aligned with the second conveyor belt and the third conveyor belt respectively through the groove on the surface by rotational mating, and grooves are provided on both sides of the end of the device body. The grooves on both sides of the end of the device body are aligned with the second conveyor belt and the third conveyor belt. The rotating seat can align the grooves on its surface with the second conveyor belt and the third conveyor belt respectively through rotation; this design ensures the smooth transition of the transformer between different conveyor belts, and good alignment can be maintained both during the conveying before detection and the sorting and conveying after detection; this alignment mechanism enables the transformer to accurately enter the next station, improving the reliability and efficiency of the entire conveying system.

[0015] Preferably, the method is as follows:

[0016] S01: By sequentially conveying the voltage and current transformers to be detected onto the surface of the first conveyor belt, driving the transmission shaft to rotate through the first motor, and then driving the voltage and current transformers on the surface of the first conveyor belt to be sequentially conveyed to the discharging mechanism;

[0017] S02: When the voltage and current transformer is conveyed onto the surface of the roller, when the voltage and current transformer moves to the designated position, it is detected by the second sensor, and then the second sensor feeds back the signal to the controller, and then controls the telescopic end of the micro-motion cylinder to extend. While the telescopic end of the micro-motion cylinder extends, it can drive the clamping block to clamp and position the voltage and current transformer;

[0018] S03: By rotating the knob, the knob can drive the second threaded rod to rotate. While the threaded rod rotates, it can drive the lifting block to adjust the height up and down, and then adjust the height of the lifting cylinder according to the detected product. By the telescopic end of the bottom of the lifting cylinder extending downward, the lifting cylinder can push the first spring downward, and the first spring can elastically push the pin downward, so that the pin can be aligned with the hole groove on the surface of the voltage and current transformer, and as the pin is pressed down, it can be inserted into the voltage and current transformer for detection;

[0019] S04: After the pin detection, the telescopic end of the lifting cylinder drives the contraction. While the pin moves upward, under the push of the second spring, the slider can slide outside the pin, so that the slider can clean the outer wall of the pin. At the same time, it drives the sponge to slide up and down outside the pin, so that the sponge can further clean the outer wall of the pin, thus avoiding the influence of water vapor corrosion on the outer wall surface of the pin on the detection. And under the action of the dust-proof cover, the external dust can be isolated from the surface of the pin, thus achieving the dust-proof effect;

[0020] S05: According to the detection result, the controller controls the third motor to rotate. While the third motor rotates, it can drive the rotating seat to rotate 90 degrees. Then the micro-motion cylinder drives the clamping block to contract, so that the clamping block disengages from the clamping of the voltage and current transformer. The fourth motor drives the transmission wheel to rotate, and the transmission wheel drives each roller to rotate through the transmission belt, so that the qualified voltage and current transformers can be conveyed to the second conveyor belt, and the unqualified voltage and current transformers can be conveyed to the third conveyor belt, thus achieving the effect of automatic sorting and greatly improving the convenience.

[0021] Compared with the prior art, the beneficial effects of the present application are as follows:

[0022] (1) The telescopic end at the bottom of the lifting cylinder extends downward, so that the lifting cylinder can push the first spring downward, and the first spring can elastically push the pin downward, so that the pin can align with the surface hole groove of the voltage and current transformer. As the pin is pressed down, it can be inserted into the voltage and current transformer for detection. The elastic push of the first spring to insert the pin into the voltage and current transformer for testing can adaptively adjust the insertion depth. When the depth is relatively shallow, the pin will compress the first spring, thus avoiding excessive pressure on the pin resulting in damage and bending, thereby protecting the test device, being beneficial to extending the service life, and there is no need to repeatedly adjust the insertion depth of the pin according to different voltage and current transformers, greatly improving the convenience of use.

[0023] (2) According to the detection results, the controller sends a control signal to the third motor according to the preset logic, driving the third motor to rotate 90° in the specified direction; the rotation of the third motor drives the rotating seat to rotate synchronously through mechanical transmission, realizing the switching of workstations. At the same time, the controller sends an instruction to the micro-cylinder, causing its telescopic end to contract, thereby driving the clamping block to disengage from the clamping state of the voltage and current transformer; subsequently, the controller starts the fourth motor, and the output end of the fourth motor drives the transmission wheel to rotate. The transmission wheel transmits power to each roller through the transmission belt, driving the rollers to rotate in the preset direction; through the above coordinated actions, the voltage and current transformers that pass the detection are conveyed to the second conveyor belt, while the voltage and current transformers that fail the detection are conveyed to the third conveyor belt, thus realizing the automatic sorting function of the voltage and current transformers, significantly improving the efficiency and accuracy of the detection process.

[0024] (3) After the detection is completed, the telescopic end of the lifting cylinder contracts upward, driving the pin to move upward; during this process, the elastic force exerted by the second spring pushes the slider to slide downward along the outer wall of the pin; the inner wall of the slider is closely attached to the outer wall of the pin, which can effectively remove impurities and residues on the surface of the pin; at the same time, the sponge adhered to the top of the slider slides up and down on the outer wall of the pin, further deeply cleaning the surface of the pin to remove possible attached fine particles or stains; this dual cleaning mechanism can effectively prevent the outer wall of the pin from being corroded due to the accumulation of water vapor or impurities, ensuring the electrical performance and contact reliability of the pin in subsequent detections; in addition, the design of the dust cover can effectively isolate the contact between external dust and the surface of the pin, preventing dust from adhering to cause pollution or damage to the pin, thereby providing good dust protection for the pin in the non-detection state, prolonging the service life of the pin and improving the overall reliability of the detection device. Description of the Drawings

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 It is a schematic top view structure of the present invention.

[0027] Figure 3 It is a schematic front view structure of the present invention.

[0028] Figure 4 It is a schematic side view structure of the present invention.

[0029] Figure 5 It is a schematic diagram of the structure of the third motor of the present invention.

[0030] Figure 6 It is a schematic diagram of the structure of the detection mechanism of the present invention.

[0031] Figure 7 It is a schematic diagram of the structure of the discharging mechanism of the present invention.

[0032] Figure 8 This is a schematic diagram of the belt structure of the present invention.

[0033] Figure 9 This is a schematic diagram of the lifting cylinder structure of the present invention.

[0034] Figure 10 For the present invention Figure 9 The enlarged structure schematic diagram at position A in it.

[0035] In the figure: 1, device main body; 2, first motor; 3, transmission shaft; 4, first sensor; 5, first conveyor belt; 6, second conveyor belt; 7, detection mechanism; 701, connecting block; 702, telescopic column; 703, first threaded rod; 704, first limit block; 705, first adjusting block; 706, first spring; 707, mounting seat; 708, set screw; 709, pin; 710, dust cover; 711, slider; 712, sponge; 713, second spring; 714, mounting block; 8, discharging mechanism; 801, rotating seat; 802, second sensor; 803, micro motion cylinder; 804, clamping block; 805, roller; 806, transmission wheel; 807, transmission belt; 808, fourth motor; 9, lifting mechanism; 901, column; 902, slide bar; 903, knob; 904, second threaded rod; 905, lifting block; 10, third conveyor belt; 11, controller; 12, lifting cylinder; 13, second motor; 14, third motor. Specific embodiments

[0036] Next, in combination with specific embodiments, the present application will be further described. It should be noted that, on the premise of no conflict, the following described embodiments or technical features can be arbitrarily combined with each other to form new embodiments.

[0037] In the description of the present application, it should be noted that for orientation terms, if there are terms such as "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation and position relationship is based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0038] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence.

[0039] Embodiment 1:

[0040] One preferred embodiment of the present application is as Figures 1 to 10As shown in the figure, a voltage and current transformer testing device and method include: a device main body 1 and a detection mechanism 7. On one side of the device main body 1, a first motor 2 is installed. A transmission shaft 3 is sleeved outside the output end of the first motor 2. The transmission shaft 3 is in transmission connection with a first conveyor belt 5. The first conveyor belt 5 is located inside a groove at one end of the device main body 1. On both sides of the top of the first conveyor belt 5, first sensors 4 are provided. The first sensors 4 are used to detect the position of the workpiece. At one end of the first conveyor belt 5, a discharging mechanism 8 is provided. The discharging mechanism 8 is used for guiding the workpiece. At the bottom of the discharging mechanism 8, a third motor 14 is installed. The third motor 14 is embedded in the bottom of the device main body 1. The third motor 14 is used for the steering operation of the discharging mechanism 8. On one side of the discharging mechanism 8, a second conveyor belt 6 is provided, and on the other side of the discharging mechanism 8, a third conveyor belt 10 is provided. The second conveyor belt 6 and the third conveyor belt 10 are respectively in transmission connection with a second motor 13. There are two second motors 13. A controller 11 is installed on one side of the device main body 1. The controller 11 is used for the overall control of the equipment. At the other end of the device main body 1, a lifting mechanism 9 is provided. At one end of the top of the lifting mechanism 9, a lifting cylinder 12 is installed. There are two lifting cylinders 12. At one end of the bottom of the two lifting cylinders 12, a detection mechanism 7 is provided. The detection mechanism 7 is located above the discharging mechanism 8; the detection mechanism 7 includes an elastic mechanism and a probe mechanism. The elastic mechanism is located at one end of the bottom of the lifting cylinder 12. The elastic mechanism is used for adaptively adjusting the insertion depth of the probe mechanism. The probe mechanism is installed at the bottom of the elastic mechanism. The probe mechanism is used for detecting current. The probe mechanism is electrically connected to the controller 11; the elastic mechanism includes a connecting block 701. At both ends of the connecting block 701, telescopic columns 702 are provided. At one end of the bottom of the telescopic column 702, it is welded to the connecting block 701. At one end of the top of the telescopic column 702, it is welded to the connecting block 701. In the middle of the top of the connecting block 701, a first threaded rod 703 is welded. The outside of the first threaded rod 703 is in sliding contact with the inner hole of the connecting block 701. At one end of the top of the first threaded rod 703, a first limit block 704 is welded. The outside of the first threaded rod 703 is threadedly connected to a first adjusting block 705. At the top of the first adjusting block 705, a first spring 706 is provided. The first spring 706 is sleeved outside the first threaded rod 703. By the telescopic end of the bottom of the lifting cylinder 12 extending downward, the lifting cylinder 12 can push the first spring 706 downward, so that the first spring 706 can elastically push the pin 709 downward, so that the pin 709 can align with the surface hole of the voltage and current transformer. As the pin 709 is pressed down, it can be inserted into the voltage and current transformer for detection. By the elastic pushing of the first spring 706, the pin 709 is inserted into the voltage and current transformer for testing, and the insertion depth can be adaptively adjusted. When the depth is relatively shallow, the pin 709 will compress the first spring 706, thereby avoiding damage and bending of the pin 709 due to excessive pressure, thus protecting the testing device, being beneficial to extending the service life, and there is no need to repeatedly adjust the insertion depth of the pin 709 according to different voltage and current transformers, greatly improving the convenience of use.

[0041] Example 2:

[0042] One preferred embodiment of the present application is as follows Figures 1 to 8As shown in the figure, a voltage and current transformer testing device and method. The probe mechanism includes a mounting block 714, which is embedded at the bottom of the mounting seat 707. At both ends of the mounting seat 707, set screws 708 are provided on the side surfaces. The set screws 708 are threadedly connected to the inner parts at both ends of the mounting seat 707. At the bottom of the mounting block 714, two pins 709 are installed. A second spring 713 is sleeved outside the pins 709. One end of the top of the second spring 713 is welded to the bottom of the mounting block 714. A dust cover 710 is provided outside the second spring 713. One end of the bottom of the dust cover 710 is glued to the mounting block 714. One end of the bottom of the dust cover 710 is glued with a slider 711. The slider 711 is made of flexible rubber material, and a hole groove is provided inside the slider 711. The inner wall of the hole groove inside the slider 711 is in sliding contact with the outer wall surface of the pin 709. A sponge 712 is adhered to the top surface of the slider 711; The discharging mechanism 8 includes a rotating seat 801, which is located inside the groove on the surface at one end of the device main body 1. The rotating seat 801 is sleeved outside the output end of the third motor 14. Inside both ends of the rotating seat 801, a fourth motor 808 is installed. The output of the fourth motor 808 is sleeved with a transmission wheel 806. The transmission wheels 806 are distributed in a straight line at equal intervals inside both ends of the rotating seat 801, and adjacent transmission wheels 806 are connected to each other through a transmission belt 807. The transmission wheels 806 are sleeved outside both ends of a roller 805. The rollers 805 are distributed in a straight line at equal intervals, and the rollers 805 are distributed inside the middle groove of the rotating seat 801; At the top of both ends of the rotating seat 801, a second sensor 802 is installed. The second sensor 802 is electrically connected to the controller 11. On both sides of the second sensor 802, a micro-motion cylinder 803 is provided. The micro-motion cylinder 803 is installed on the top of the rotating seat 801 by screws. A clamping block 804 is sleeved outside the telescopic end of the micro-motion cylinder 803. A rubber coating is provided on the surface of the clamping block 804; The lifting mechanism 9 includes a column 901. One end of the bottom of the column 901 is welded to the device main body 1. On one side of the column 901, a second threaded rod 904 is provided. One end of the bottom of the second threaded rod 904 is rotatably connected to the device main body 1. One end of the top of the second threaded rod 904 is rotatably connected to one end of the top of the column 901. A knob 903 is welded to the top of the second threaded rod 904. The outside of the second threaded rod 904 is threadedly connected to one side of a lifting block 905. Inside one side of the lifting block 905, a lifting cylinder 12 is embedded; Circular hole grooves are provided at both ends of the lifting block 905. The circular hole grooves at both ends of the lifting block 905 are in sliding contact with the outer wall of a slide bar 902. There are two slide bars 902. The two slide bars 902 are arranged in parallel with the second threaded rod 904. One end of the bottom of the slide bar 902 is welded to the device main body 1. One end of the top of the slide bar 902 is welded to both ends of the top of the column 901;The surface of the first conveyor belt 5 is distributed with strip-shaped protruding structures at equal intervals in a straight line, and the first conveyor belt 5 is aligned with the grooves on the surface of the rotating seat 801. The rotating seat 801 is aligned with the second conveyor belt 6 and the third conveyor belt 10 respectively through rotational cooperation with the surface grooves. Grooves are provided on both sides of the end of the device main body 1, and the grooves on both sides of the end of the device main body 1 are aligned with the second conveyor belt 6 and the third conveyor belt 10. According to the detection results, the controller 11 sends a control signal to the third motor 14 according to the preset logic, driving the third motor 14 to rotate 90° in the specified direction; the rotation of the third motor 14 drives the synchronous rotation of the rotating seat 801 through the mechanical transmission belt 807 to realize the switching of workstations. At the same time, the controller 11 sends an instruction to the micro-motion cylinder 803 to make its telescopic end contract, thereby driving the clamping block 804 to release the clamping state of the voltage and current transformer; subsequently, the controller 11 starts the fourth motor 808, and the output end of the fourth motor 808 drives the transmission wheel 806 to rotate. The transmission wheel 806 transmits power to each roller 805 through the transmission belt 807, driving the rollers 805 to rotate in the preset direction; through the above-mentioned coordinated actions, the voltage and current transformers that pass the detection are conveyed to the second conveyor belt 6, while the voltage and current transformers that fail the detection are conveyed to the third conveyor belt 10, thereby realizing the automatic sorting function of the voltage and current transformers, significantly improving the efficiency and accuracy of the detection process.

[0043] Embodiment 3:

[0044] One of the preferred embodiments of the present application is as Figures 1 to 6 shown, a voltage and current transformer testing device and method, a voltage and current transformer testing method, the method is as follows:

[0045] S01: By sequentially conveying the voltage and current transformers to be detected to the surface of the first conveyor belt 5, the drive shaft 3 is driven to rotate by the first motor 2, and then the drive shaft 3 drives the voltage and current transformers on the surface of the first conveyor belt 5 to be sequentially conveyed to the discharging mechanism 8;

[0046] S02: When the voltage and current transformer is conveyed to the surface of the roller 805 and detected by the second sensor 802 after moving to the specified position, the second sensor 802 then feeds back the signal to the controller 11, and then controls the telescopic end of the micro-motion cylinder 803 to extend. While the telescopic end of the micro-motion cylinder 803 extends, it can drive the clamping block 804 to clamp and position the voltage and current transformer;

[0047] S03: By rotating the knob 903, the knob 903 can drive the second threaded rod 904 to rotate. While the threaded rod rotates, it can drive the lifting block 905 to adjust the height up and down, and then adjust the height of the lifting cylinder 12 according to the product to be detected. By the telescopic end of the bottom of the lifting cylinder 12 extending downward, the lifting cylinder 12 can push the first spring 706 downward, so that the first spring 706 can elastically push the pin 709 downward, enabling the pin 709 to align with the surface hole slot of the voltage and current transformer. As the pin 709 is pressed down, it can be inserted into the voltage and current transformer for detection;

[0048] S04: After the pin 709 is detected, it is driven to contract by the telescopic end of the lifting cylinder 12. While the pin 709 moves upward, under the push of the second spring 713, the slider 711 can slide outside the pin 709, so that the slider 711 can clean the outer wall of the pin 709. At the same time, it drives the sponge 712 to slide up and down outside the pin 709, enabling the sponge 712 to further clean the outer wall of the pin 709, thus avoiding the influence of water vapor corrosion on the outer wall surface of the pin 709 on detection. And under the action of the dust-proof cover, external dust can be isolated from the surface of the pin 709, thus achieving the effect of dust prevention;

[0049] S05: According to the detection result, the controller 11 controls the third motor 14 to rotate. While the third motor 14 rotates, it can drive the rotating seat 801 to rotate by ninety degrees. Then the micro-motion cylinder 803 drives the clamping block 804 to contract, so that the clamping block 804 disengages from the clamping of the voltage and current transformer. The fourth motor 808 drives the transmission wheel 806 to rotate, and the transmission wheel 806 drives each roller 805 to rotate through the transmission belt 807, so that the qualified voltage and current transformers can be conveyed to the second conveyor belt 6, and the unqualified voltage and current transformers can be conveyed to the third conveyor belt 10, thus achieving the effect of automatic sorting and greatly improving the convenience;

[0050] After the detection is completed, the telescopic end of the lifting cylinder 12 contracts upward, driving the pin 709 to move upward; during this process, the elastic force exerted by the second spring 713 pushes the slider 711 to slide downward along the outer wall of the pin 709; the inner wall of the slider 711 is closely attached to the outer wall of the pin 709, which can effectively remove impurities and residues on the surface of the pin 709; at the same time, the sponge 712 adhered to the top of the slider 711 slides up and down on the outer wall of the pin 709, further deeply cleaning the surface of the pin 709 to remove possible attached fine particles or stains; this dual cleaning mechanism can effectively prevent the outer wall of the pin 709 from being corroded due to the accumulation of water vapor or impurities, ensuring the electrical performance and contact reliability of the pin 709 in subsequent detections; in addition, the design of the dust cover 710 can effectively isolate the contact between external dust and the surface of the pin 709, preventing dust from adhering to and causing pollution or damage to the pin 709, thereby providing good dust protection for the pin 709 in the non-detection state, extending the service life of the pin 709 and improving the overall reliability of the detection device.

[0051] The above describes the basic principle, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A voltage and current transformer testing device, characterized in that: include: The device comprises a main body (1), a detection mechanism (7) and a discharge mechanism (8), wherein a first motor (2) is installed on the side of one end of the main body (1), a transmission shaft (3) is mounted on the outside of the output end of the first motor (2), and the transmission shaft (3) is connected to a first conveyor belt (5) in a transmission manner, the first conveyor belt (5) is located inside a groove at one end of the main body (1), first sensors (4) are arranged on both sides of the top of the first conveyor belt (5), and the first sensors (4) are used to detect the position of a workpiece, a discharge mechanism (8) is arranged at one end of the first conveyor belt (5), and the discharge mechanism (8) is used to guide the workpiece, and a third motor (14) is arranged at the bottom of the discharge mechanism (8), and the third motor (14) is embedded in the bottom of the main body (1), and the third motor (14) is used to discharge The material discharging mechanism (8) is turned to work, a second conveyor belt (6) is arranged on one side of the material discharging mechanism (8), and a third conveyor belt (10) is arranged on the other side of the material discharging mechanism (8), the second conveyor belt (6) and the third conveyor belt (10) are respectively connected to the second motor (13) by transmission, and two second motors (13) are arranged. A controller (11) is installed on one side of the device body (1), and the controller (11) is used for overall control of the equipment. A lifting mechanism (9) is arranged on the other end of the device body (1), and a lifting cylinder (12) is installed on the top end of the lifting mechanism (9), and two lifting cylinders (12) are arranged. A detection mechanism (7) is arranged on the bottom end of the two lifting cylinders (12), and the detection mechanism (7) is located above the material discharging mechanism (8).

2. A voltage and current transformer testing device as claimed in claim 1, characterized in that: The detection mechanism (7) comprises an elastic mechanism and a probe mechanism, wherein the elastic mechanism is located at one end of the bottom of the lifting cylinder (12), the elastic mechanism is used to adaptively adjust the insertion depth of the probe mechanism, the probe mechanism is installed at the bottom of the elastic mechanism, the probe mechanism is used to detect current, and the probe mechanism is electrically connected to the controller (11).

3. A voltage and current transformer testing device as claimed in claim 2, characterized in that: The elastic mechanism comprises a connecting block (701), wherein telescopic columns (702) are arranged at both ends of the connecting block (701), wherein a bottom end of the telescopic column (702) is welded to the connecting block (701), and a top end of the telescopic column (702) is welded to the connecting block (701), and a first threaded rod (703) is welded to the middle of the top of the connecting block (701), and the outside of the first threaded rod (703) is in sliding contact with a hole groove inside the connecting block (701), and a first limiting block (704) is welded to one end of the top of the first threaded rod (703), and the outside of the first threaded rod (703) is threadedly connected to a first adjusting block (705), and a first spring (706) is arranged on the top of the first adjusting block (705), and the first spring (706) is sleeved on the outside of the first threaded rod (703).

4. A voltage and current transformer testing device as claimed in claim 2, characterized in that: The probe mechanism comprises a mounting block (714), wherein the mounting block (714) is embedded in the bottom of the mounting seat (707), and setscrews (708) are arranged on the sides of both ends of the mounting seat (707), and the setscrews (708) are connected to the internal threads of both ends of the mounting seat (707), and two pins (709) are installed at the bottom of the mounting block (714), and a second spring (713) is sleeved on the outside of the pins (709), and one end of the top of the second spring (713) is connected to the mounting block (714). The bottom is welded, a dust cover (710) is arranged outside the second spring (713), one end of the bottom of the dust cover (710) is glued to the mounting block (714), one end of the bottom of the dust cover (710) is glued to a slider (711), the slider (711) is made of flexible rubber material, and a hole groove is opened inside the slider (711), the inner wall of the hole groove inside the slider (711) is in sliding contact with the outer wall surface of the pin (709), and the top surface of the slider (711) is glued with a sponge (712).

5. A voltage and current transformer testing device as claimed in claim 1, characterized in that: The discharge mechanism (8) comprises a rotating seat (801), the rotating seat (801) is located inside a groove on the surface of one end of the device body (1), the rotating seat (801) is sleeved on the outside of the output end of the third motor (14), the fourth motor (808) is installed inside both ends of the rotating seat (801), the output of the fourth motor (808) is sleeved with a transmission wheel (806), the transmission wheels (806) are distributed in a straight line and at equal intervals inside the two ends of the rotating seat (801), and adjacent transmission wheels (806) are connected to each other by a transmission belt (807), the transmission wheels (806) are sleeved on the outside of both ends of the rollers (805), the rollers (805) are distributed in a straight line and at equal intervals, and the rollers (805) are distributed inside the middle groove of the rotating seat (801).

6. A voltage and current transformer testing device as claimed in claim 1, characterized in that: Second sensors (802) are installed at the top of both ends of the rotating seat (801), and the second sensors (802) are electrically connected to the controller (11). Micro-motion cylinders (803) are arranged on both sides of the second sensor (802), and the micro-motion cylinders (803) are installed on the top of the rotating seat (801) by screws. A clamping block (804) is sleeved on the outside of the telescopic end of the micro-motion cylinder (803), and a rubber coating is arranged on the surface of the clamping block (804).

7. A voltage and current transformer testing device as claimed in claim 1, characterized in that: The lifting mechanism (9) comprises a column (901), one end of the bottom of the column (901) is welded to the device body (1), a second threaded rod (904) is provided on one side of the column (901), one end of the bottom of the second threaded rod (904) is rotatably connected to the device body (1), one end of the top of the second threaded rod (904) is rotatably connected to the top of the column (901), a knob (903) is welded to the top of the second threaded rod (904), the outside of the second threaded rod (904) is threadedly connected to one side of a lifting block (905), and a lifting cylinder (12) is embedded inside one side of the lifting block (905).

8. A voltage and current transformer testing device as claimed in claim 7, characterized in that: Circular holes are formed at both ends of the lifting block (905), and the circular holes at both ends of the lifting block (905) are in sliding contact with the outer wall of the sliding rod (902). Two sliding rods (902) are provided, and the two sliding rods (902) are arranged in parallel with the second threaded rod (904). One end of the bottom of the sliding rod (902) is welded to the device body (1), and one end of the top of the sliding rod (902) is welded to both ends of the top of the column (901).

9. A voltage and current transformer testing device as claimed in claim 1, characterized in that: The surface of the first conveyor belt (5) is provided with strip-shaped protruding structures distributed in a straight line at equal intervals, and the first conveyor belt (5) is aligned with the surface grooves of the rotating seat (801), and the rotating seat (801) is respectively aligned with the second conveyor belt (6) and the third conveyor belt (10) by rotating the matching surface grooves, and grooves are provided on both sides of the end of the device body (1), and the grooves on both sides of the end of the device body (1) are aligned with the second conveyor belt (6) and the third conveyor belt (10).

10. A voltage and current transformer testing method according to any one of claims 1 to 9, characterized in that: Here’s how: S01: The voltage and current transformers to be detected are sequentially conveyed to the surface of a first conveyor belt (5), and a first motor (2) drives a transmission shaft (3) to rotate, thereby causing the transmission shaft (3) to drive the voltage and current transformers on the surface of the first conveyor belt (5) to be sequentially conveyed to a discharge mechanism (8); S02: When the voltage and current transformer is transported to the surface of the roller (805), the voltage and current transformer is detected by the second sensor (802) when it moves to the specified position, and then the second sensor (802) feeds back the signal to the controller (11), thereby controlling the extension of the telescopic end of the micro-motion cylinder (803). When the telescopic end of the micro-motion cylinder (803) is extended, it can drive the clamping block (804) to clamp and position the voltage and current transformer; S03: By rotating the knob (903), the knob (903) can drive the second threaded rod (904) to rotate, and the threaded rod can drive the lifting block (905) to adjust the height up and down while rotating, and then adjust the height of the lifting cylinder (12) according to the detection product, and the bottom telescopic end of the lifting cylinder (12) extends downward, so that the lifting cylinder (12) can push the first spring (706) downward, so that the first spring (706) can elastically push the pin (709) downward, so that the pin (709) can align with the hole groove on the surface of the voltage and current transformer, and as the pin (709) is pressed downward, it can be inserted into the voltage and current transformer for detection; S04: After the pin (709) is detected, the pin (709) is driven to retract by the telescopic end of the lifting cylinder (12). The pin (709) moves upward and, under the push of the second spring (713), the slider (711) can slide outside the pin (709), thereby enabling the slider (711) to clean the outer wall of the pin (709). At the same time, the sponge (712) is driven to slide up and down outside the pin (709), thereby enabling the sponge (712) to further clean the outer wall of the pin (709), thereby preventing the outer wall of the pin (709) from being corroded by water vapor and affecting the detection. Moreover, the dust cover can be used to isolate the external dust from the surface of the pin (709), thereby achieving a dustproof effect. S05: According to the detection result, the controller (11) controls the third motor (14) to rotate. When the third motor (14) rotates, it can drive the rotating seat (801) to rotate ninety degrees, and then the micro-cylinder (803) drives the clamping block (804) to contract, so that the clamping block (804) is released from the clamping of the voltage and current transformer. The fourth motor (808) drives the transmission wheel (806) to rotate. The transmission wheel (806) drives each roller (805) to rotate through the transmission belt (807), so that the voltage and current transformer that passes the test can be transported to the second conveyor belt (6), and the voltage and current transformer that fails the test can be transported to the third conveyor belt (10), thereby achieving the effect of automatic sorting and greatly improving convenience.

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