Ignition gap adjusting device and ignition device adjusting method

Abstract

The invention provides an ignition gap adjusting device and an ignition gap adjusting method. Remote control equipment automatically controls a motor to act according to an ignition gap detected by a displacement sensor to achieve automatic and efficient adjustment of the ignition gap. A worker checks an image, transmitted by an image acquisition component, of a scale position of a scale indicated by a scale indication component on remote control equipment, so that the ignition gap is intuitively determined; the remote control device controls the motor to act according to an adjusting instruction input by a worker to achieve remote readjustment and calibration of the ignition gap, and therefore the ignition gap can be accurately adjusted to a target value. The displacement sensor, the image acquisition component and the electrode are far away and are powered by the battery, so that the conditions of displacement sensor failure or inaccurate detection, motor false start or overvoltage damage and the like caused by strong electromagnetic interference and high-voltage invasion are not easy to occur, and the device is suitable for scenes with high environmental potential, large potential fluctuation and strong electromagnetic interference.

Description

Technical Field

[0001] This application relates to the field of ignition mechanism technology, and in particular to an ignition gap adjustment device and an ignition device adjustment method. Background Technology

[0002] The synthetic test circuit is the core testing device for the circuit breaker's breaking / closing capability. It uses a current circuit to provide a large current and a voltage circuit to provide a high-voltage recovery voltage. The ignition mechanism is the timing actuator of the voltage circuit, responsible for accurately triggering the high-voltage pulse and ensuring that the current circuit and voltage circuit are superimposed according to the standard timing sequence.

[0003] The ignition mechanism has two electrodes with a gap between them (the ignition gap). This gap is precisely broken down before the current crosses zero, providing the specified recovery voltage to the circuit breaker under test. When ignition is not triggered, the ignition gap needs to withstand the charging voltage of the voltage circuit (typically 100kV-1000kV). Therefore, the ignition gap cannot be too small, otherwise it is prone to false break-through. During ignition, rapid and stable break-through is required; therefore, the ignition gap cannot be too large, otherwise it will be difficult to break through, leading to unstable ignition and long lag. Therefore, when the charging voltage of the voltage circuit is different, the ignition gap needs to be adjusted to ensure stable ignition.

[0004] One adjustment method involves a remote control device obtaining the current ignition gap based on image recognition from a camera or sensor readings. This, combined with the current and target ignition gap, then controls the local control device to operate a relay actuator to adjust the ignition gap. However, in high-capacity circuit breaker test circuits, the ignition mechanism is located in an environment with high potential, large potential fluctuations, and strong electromagnetic interference. This is often accompanied by sudden rises in ground potential and continuous high-voltage high-frequency pulse disturbances, frequently leading to camera damage, relay malfunctions, sensor damage, and even high-voltage intrusion into local and remote control equipment. Therefore, this adjustment method is unsuitable for this scenario. Currently, for such scenarios, manual local adjustment of the ignition gap is still the preferred method, but this is inefficient and unsafe.

[0005] In view of this, how to achieve efficient and safe adjustment of the ignition gap in scenarios with high ambient potential, large potential fluctuations, and strong electromagnetic interference is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0006] To solve the above-mentioned technical problems, this application provides an ignition gap adjustment device, which includes a motor, a transmission assembly and a displacement sensor, wherein the displacement sensor and the motor are communicatively connected to a remote control device;

[0007] The transmission assembly includes a first rack and a second rack, which extend along a first direction and are parallel to each other. In a second direction, the second rack is spaced apart from the first electrode and the second electrode. The first direction is the arrangement direction of the first electrode and the second electrode, and the second direction is perpendicular to the first direction.

[0008] The first rack is connected to the first electrode, the second rack is connected to the displacement sensor, the motor is driven by the second rack, and the second rack is driven by the first rack, so that the motor can drive the first electrode and the displacement sensor to move synchronously along the first direction.

[0009] One embodiment of the ignition gap adjustment device includes a scale, a graduation indicator, and an image acquisition component. The image acquisition component is capable of acquiring an image of the graduation position of the scale indicated by the graduation indicator. The graduations on the scale are arranged along a first direction. A second rack is connected to one of the scale and the graduation indicator. The image acquisition component is communicatively connected to a remote control device. The remote control device has a command input module, through which adjustment commands can be input.

[0010] In one embodiment of the ignition gap adjustment device, the motor and the displacement sensor are connected to the remote control device via optical fiber communication or wireless communication, as are the image acquisition component and the remote control device.

[0011] In one embodiment of the ignition gap adjustment device, the image acquisition component and displacement sensor are equipped with batteries.

[0012] One embodiment of the ignition gap adjustment device includes a transmission assembly comprising a first gear, a second gear, a third gear, a fourth gear, a third rack, and a fourth rack. The motor is connected to the first gear and the second gear. The first gear meshes with the second rack, the second gear meshes with the third rack, the third gear meshes with the first rack, and the fourth gear meshes with the fourth rack. The third rack and the fourth rack are connected or integrated.

[0013] In one embodiment of the ignition gap adjustment device, the third rack and the fourth rack are connected by an insulating connector, or at least one of the third rack and the fourth rack is an insulating rack.

[0014] In one embodiment of the ignition gap adjustment device, the third rack and the fourth rack extend along the second direction, the third rack and the second rack are offset in a third direction, and the third direction is perpendicular to the first direction and the second direction.

[0015] One embodiment of the ignition gap adjustment device includes an insulating guide rail, wherein a first rack, a second rack, a third rack, and a fourth rack are installed in a guide groove of the insulating guide rail to guide the movement direction of the racks by the guide groove.

[0016] One embodiment of the ignition gap adjustment device includes an insulating plate, an insulating guide rail fixedly mounted on the insulating plate, and a first gear, a second gear, a third gear, and a fourth gear rotatably mounted on the insulating plate.

[0017] One embodiment of the ignition gap adjustment device includes an insulating housing, an insulating plate housed within the insulating housing, and the insulating housing having a first hole for the output shaft of the motor to extend into, a second hole for the first rack to extend into, a third hole for the first rack to extend out, a fourth hole for the second rack to extend into, and a fifth hole for the second rack to extend out.

[0018] This application also provides a method for adjusting the ignition gap, the method comprising the following steps:

[0019] S1. The remote control device controls the motor to move the first electrode closer to or further away from the second electrode based on the ignition gap detected by the displacement sensor and the calculated target ignition gap.

[0020] S2. The ignition gap is obtained manually based on the image of the scale indicated by the scale indicator component acquired by the image acquisition component. If there is a difference between the ignition gap and the target ignition gap, the manual inputs the adjustment command into the remote control device. The remote control device controls the motor to move closer to or further away from the second electrode according to the input adjustment command.

[0021] The ignition gap adjustment device provided in this application can directly reflect the ignition gap because the first electrode of the ignition mechanism and the displacement sensor can move synchronously along the first direction under the drive of the motor. Compared with the ignition gap recognition based on the image transmitted by the camera, it is not affected by objective conditions such as changes in ambient light conditions, camera focal length or angle shift, etc., and therefore has high accuracy. Moreover, it does not require customized recognition algorithms for images of different sizes and environments, and therefore has high portability.

[0022] Because the displacement sensor and motor are connected to the remote control device, the remote control device can control the motor to move the first electrode closer to or further away from the second electrode based on the detection data of the displacement sensor, thereby achieving automatic and efficient adjustment of the ignition gap.

[0023] Because the second rack is spaced apart from the first and second electrodes in the second direction, the motor connected to the second rack, the displacement sensor connected to the second rack, and the remote control device connected to the motor can all be relatively far from the first and second electrodes. Therefore, it is less likely to cause displacement sensor failure or inaccurate detection, motor misstart or overvoltage damage due to strong electromagnetic interference or high voltage intrusion. Therefore, it is suitable for scenarios with high ambient potential, large potential fluctuations, and strong electromagnetic interference. For example, it can be used to adjust the ignition gap of the ignition mechanism in the synthetic test circuit of a large-capacity circuit breaker.

[0024] The ignition gap adjustment method provided in this application can remotely readjust and calibrate the ignition gap, and can accurately adjust the ignition gap to the target value. Attached Figure Description

[0025] Figure 1 A perspective view of one embodiment of the ignition gap adjustment device provided in this application;

[0026] Figure 2 for Figure 1 A 3D schematic diagram showing the state of the insulation shell being concealed;

[0027] Figure 3 for Figure 2 A three-dimensional enlarged schematic diagram of the middle section structure;

[0028] Figure 4 for Figure 2 A three-dimensional enlarged schematic diagram of the middle section structure;

[0029] Figure 5 for Figure 2 A three-dimensional enlarged schematic diagram of the middle section structure;

[0030] Figure 6 This is a schematic diagram showing the connection between the insulating board and the insulating shell;

[0031] Figure 7 A block diagram of the ignition gap adjustment device provided in this application;

[0032] 1. Motor; 2. Transmission assembly, 2.1 First rack, 2.2 Second rack, 2.3 Third rack, 2.4 Fourth rack, 2.5 First gear, 2.6 Second gear, 2.7 Third gear, 2.8 Fourth gear, 2.9 Insulating connector; 3. Displacement sensor; 4. Scale; 5. Gradient indicator; 6. Image acquisition component; 7. Insulating guide rail; 8. Insulating plate; 9. Insulating housing, 9.1 First hole, 9.2 Second hole, 9.3 Third hole, 9.4 Fourth hole, 9.5 Fifth hole, 9.6 Fixing block, 10. Threaded fastener;

[0033] 01 First electrode, 02 Second electrode. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-7 The specific embodiments of this application will be described below.

[0035] like Figures 1-7 As shown, the ignition gap adjustment device includes at least a motor 1, a transmission assembly 2, and a displacement sensor 3.

[0036] The transmission assembly 2 includes a first rack 2.1 and a second rack 2.2, which extend along a first direction and are parallel to each other. The first direction is the arrangement direction of the first electrode 01 and the second electrode 02 of the ignition mechanism; that is, the first electrode 01 and the second electrode 02 are arranged along the first direction. The type of the first electrode 01 and the second electrode 02 is not limited; for example, they can both be spherical electrodes, both can be flat electrodes, or one can be a spherical electrode and the other a flat electrode.

[0037] The first rack 2.1 is connected to the first electrode 01. The second rack 2.2 is connected to the displacement sensor 3. The motor 1 is driven by the second rack 2.2, and the second rack 2.2 is driven by the first rack 2.1, enabling the motor 1 to drive the first electrode 01 and the displacement sensor 3 to move synchronously along the first direction. In this way, the detection data of the displacement sensor 3 can directly reflect the ignition gap. Compared with identifying the ignition gap based on the image transmitted by the camera, it is not affected by objective conditions such as changes in ambient light conditions, camera focal length, or angle shift, thus having high accuracy. Moreover, it does not require customized recognition algorithms for images of different sizes and environments, thus having high portability.

[0038] Motor 1 and displacement sensor 3 are connected to a remote control device, which is a control device located outside the ignition mechanism's location. In this way, the remote control device can obtain the ignition gap based on the detection data from displacement sensor 3, and accordingly control motor 1 to move the first electrode 01 closer to or further away from the second electrode 02, thereby achieving automatic adjustment of the ignition gap. This is more efficient and safer than manually adjusting the ignition gap on-site.

[0039] In the second direction perpendicular to the first direction, the second rack 2.2 is spaced apart from the first electrode 01 and the second electrode 02 of the ignition mechanism. In this way, the motor 1, which is driven by the second rack 2.2, the displacement sensor 3, which is connected to the second rack 2.2, and the remote control device, which is communicated with the motor 1, can all be relatively far away from the first electrode 01 and the second electrode 02. Therefore, it is not easy for the displacement sensor 3 to fail or detect inaccurately, or for the motor 1 to start erroneously due to strong electromagnetic interference. Therefore, it is suitable for scenarios with high ambient potential, large potential fluctuations, and strong electromagnetic interference. For example, it can be used to adjust the ignition gap of the ignition mechanism in the synthetic test circuit of a large-capacity circuit breaker.

[0040] In some embodiments, such as Figures 1-3 and Figure 5 As shown, the ignition gap adjustment device may also include a scale 4, a scale indicator 5, and an image acquisition component 6.

[0041] The second rack 2.2 is connected to either the scale 4 or the scale indicator 5, with the other scale 4 or scale indicator 5 fixedly mounted. The scale on the scale 4 is arranged along a first direction. Taking the connection between the second rack 2.2 and the scale 4 as an example, the motor 1 can drive the scale 4 and the first electrode 01 to move synchronously along the first direction. As the scale 4 moves, the scale indicated by the scale indicator 5 changes, and the indicated scale value can directly reflect the ignition gap.

[0042] The image acquisition unit 6 can acquire images of the scale position indicated by the scale indicator unit 5 on the ruler 4. The image acquisition unit 6 can be a camera, video camera, etc. The image acquisition unit 6 and the displacement sensor 3 are preferably equipped with batteries, completely isolated from ground potential. Image acquisition uses a wireless image acquisition unit, thus eliminating the need for power supply wiring and ensuring high safety.

[0043] The image acquisition unit 6 is communicatively connected to the remote control device. The remote control device can display the image transmitted by the image acquisition unit 6, and the operator can intuitively see the indication scale of the scale indicator unit 5 from the image, thereby determining the ignition gap.

[0044] The remote control device communicates with the local devices (image acquisition unit 6, motor 1, and displacement sensor 3, etc.). The remote control device has an ignition gap calculation module and a command input module. The ignition gap calculation module uses a support vector regression algorithm to build a prediction model, statistically analyzing past experimental data. Atmospheric pressure, temperature, relative humidity, air particulate matter concentration, and the voltage across the ignition electrode are used as inputs, with the ignition gap as the output for prediction. Both air pressure and temperature are taken as absolute values, and the voltage across the ignition electrode is the charging voltage of the main capacitor. The training sample input is set as xi = [xi1, xi2, ..., xid].T d represents the dimension of the input. The sample dimension is defined as 5, and xi1, xi2, xi3, xi4, and xi5 are set as voltage U, temperature T, atmospheric pressure P, relative humidity H, and PM10, respectively. yi represents the ignition gap D. The kernel function type is selected as Radial Basis Function (RBF), the kernel coefficients are set to automatic, the penalty factor is set to 2, and the maximum allowable deviation ε between the predicted and actual values ​​is 0.1, thus establishing a prediction model. The measured environmental parameters, namely temperature, air pressure, humidity, PM10, and the expected voltages on both sides of the ignition gap, are used as inputs to the Support Vector Regression (SVR) model to calculate the target value of the ignition gap.

[0045] When the ignition gap determined by the image displayed on the remote control device differs from the target ignition gap, the operator can input an adjustment command through the command input module. The remote control device can then calculate a control command based on this command and send it to motor 1. Motor 1 drives the first electrode 01 to move closer to or further away from the second electrode 02 along a first direction, thereby achieving remote readjustment and calibration of the ignition gap. The remote control device can also be configured to remotely control the ignition adjustment mechanism, such as powering on and off motor 1. When the ignition electrode is connected to high voltage, motor 1 is completely disconnected from the power supply to prevent malfunctions or damage caused by power disturbances or ground potential rise.

[0046] The scale 4 and the graduation indicator 5 are unaffected by light, electromagnetic interference, etc., so the ignition gap detected by the two together is relatively accurate. Based on this, the ignition gap can be readjusted and calibrated to ensure that the ignition gap is accurately adjusted to the target value. Moreover, the readjustment and calibration of the ignition gap can be performed remotely through remote control equipment, without the need for on-site adjustment by personnel, making it more efficient and safer.

[0047] Preferably, the image acquisition component 6 is connected to the remote control device via fiber optic communication, and the motor 1 and displacement sensor 3 are connected to the remote control device via wireless communication, such as Wi-Fi or Bluetooth. This avoids the safety issues caused by high voltage intrusion due to wired connections.

[0048] When the image acquisition component 6 is connected to the remote control device via optical fiber communication, a photoelectric converter needs to be installed on the remote control device side to convert the optical signal transmitted through the optical fiber into an electrical signal so as to generate a visual image on the display screen of the remote control device.

[0049] When the remote control device is connected to the motor 1 and the displacement sensor 3 via optical fiber communication, a photoelectric converter needs to be set up on the local side (the side where the motor 1 and the displacement sensor 3 are located) to convert the optical signal transmitted from the optical fiber into an electrical signal in order to generate executable commands for the motor 1 and to convert the electrical signal measured by the local displacement sensor 3 into an optical signal.

[0050] In some embodiments, such as Figures 1-5 As shown, the transmission assembly 2 includes a first gear 2.5, a second gear 2.6, a third gear 2.7, a fourth gear 2.8, a third rack 2.3, and a fourth rack 2.4. The first gear 2.5 meshes with the second rack 2.2, the second gear 2.6 meshes with the third rack 2.3, the third gear 2.7 meshes with the first rack 2.1, and the fourth gear 2.8 meshes with the fourth rack 2.4. The first gear 2.5 and the second gear 2.6 are connected to the motor 1 for transmission, and the third rack 2.3 and the fourth rack 2.4 are connected or integrated.

[0051] When motor 1 rotates, it drives the first gear 2.5 and the second gear 2.6 to rotate. The first gear 2.5 drives the second rack 2.2 to move along the first direction. The second gear 2.6 drives the third gear 2.7 and the fourth gear 2.8 to rotate via the third rack 2.3 and the fourth rack 2.4. The third gear 2.7 drives the first rack 2.1 to move along the first direction. The movement of the first rack 2.1 and the second rack 2.2 is synchronous. The materials of each gear are preferably high-strength and wear-resistant materials, such as wear-resistant alloys. It should be noted that the structure of the transmission assembly 2 is not limited to this; it is sufficient as long as the motor 1 can drive the first rack 2.1 and the second rack 2.2 to move synchronously along the first direction.

[0052] Preferably, the third rack 2.3 and the fourth rack 2.4 are connected by an insulating connector 2.9. In this case, the third rack 2.3 and the fourth rack 2.4 can be made of non-insulating materials, such as wear-resistant alloys, to ensure strength and wear resistance. Alternatively, at least one of the third rack 2.3 and the fourth rack 2.4 can be an insulating rack. In this case, the third rack 2.3 and the fourth rack 2.4 can be connected by an insulating connector 2.9 or a non-insulating connector, or they can be integrated into one unit. This effectively isolates the side where the first rack 2.1 is located from the side where the second rack 2.2 is located, reducing electromagnetic interference to the motor 1, displacement sensor 3, and image acquisition component 6 located on the side where the second rack 2.2 is located.

[0053] In some embodiments, the third rack 2.3 and the fourth rack 2.4 extend along the second direction, the third rack 2.3 and the second rack 2.2 are offset upwards in a third direction perpendicular to the first direction and the second direction, and the fourth rack 2.4 and the first rack 2.1 are offset upwards in a third direction perpendicular to the first direction and the second direction to prevent motion interference.

[0054] In some embodiments, the first gear 2.5 and the second gear 2.6 are integrated coaxial gears, and the third gear 2.7 and the fourth gear 2.8 are integrated coaxial gears, which makes assembly more convenient. Alternatively, the first gear 2.5 and the second gear 2.6 can also be separately arranged and mesh with each other, and the third gear 2.7 and the fourth gear 2.8 can also be separately arranged and mesh with each other.

[0055] In some embodiments, the ignition gap adjustment device includes an insulating guide rail 7. A first rack 2.1, a second rack 2.2, a third rack 2.3, and a fourth rack 2.4 are mounted in guide grooves of the insulating guide rail 7 to guide the movement of the racks. This improves transmission stability and enhances the adjustment accuracy of the ignition gap. Specifically, the first rack 2.1 and the second rack 2.2 are respectively mounted in guide grooves of the two insulating guide rails 7 extending along a first direction, and the third rack 2.3 and the fourth rack 2.4 are mounted in guide grooves of the insulating guide rail 7 extending along a second direction.

[0056] In some embodiments, the ignition gap adjustment device includes an insulating plate 8, an insulating guide rail 7 fixedly mounted on the insulating plate 8, and a first gear 2.5, a second gear 2.6, a third gear 2.7, and a fourth gear 2.8 rotatably mounted on the insulating plate 8. This allows the transmission assembly 2 to be integrated onto the insulating plate 8, facilitating overall assembly.

[0057] In some embodiments, the ignition gap adjustment device includes an insulating housing 9, and an insulating plate 8 is fixed inside the insulating housing 9. For example... Figure 1 As shown, the insulating housing 9 has a first hole 9.1 into which the output shaft of the power supply 1 extends, a second hole 9.2 into which the first rack 2.1 extends, a third hole 9.3 into which the first rack 2.1 extends, a fourth hole 9.4 into which the second rack 2.2 extends, and a fifth hole 9.5 into which the second rack 2.2 extends. Figure 6 As shown, a fixing block 9.6 can be installed inside the insulating shell 9, and the insulating plate 8 can be fixed to the fixing block 9.6 by threaded fasteners 10.

[0058] In some embodiments, motor 1 can be a stepper motor or a servo motor. Stepper motors or servo motors have higher precision and are easier to communicate directly with a remote control system, which is more conducive to ensuring the adjustment accuracy and safety of the ignition gap.

[0059] In some embodiments, the insulating components (including the aforementioned insulating connector 2.9, insulating shell 9, and insulating plate 8) are made of epoxy glass cloth, which has high structural strength and insulation strength.

[0060] In some embodiments, the motor or displacement sensor integrates an optical fiber communication port, which can eliminate the need for a local photoelectric converter, resulting in a simpler structure.

[0061] The above examples illustrate the principles and implementation methods of this application. The descriptions of the embodiments are merely for the purpose of helping to understand the methods and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. An ignition gap adjustment device, characterized in that, The ignition gap adjustment device includes a motor (1), a transmission assembly (2), and a displacement sensor (3). The displacement sensor (3) and the motor (1) are connected in communication with a remote control device. The transmission assembly (2) includes a first rack (2.1) and a second rack (2.2), the first rack (2.1) and the second rack (2.2) extending along a first direction and parallel to each other, and in a second direction, the second rack (2.2) is spaced apart from the first electrode (01) and the second electrode (02), wherein the first direction is the arrangement direction of the first electrode (01) and the second electrode (02), and the second direction is perpendicular to the first direction; The first rack (2.1) is connected to the first electrode (01), the second rack (2.2) is connected to the displacement sensor (3), the motor (1) is driven by the second rack (2.2), and the second rack (2.2) is driven by the first rack (2.1), so that the motor (1) can drive the first electrode (01) and the displacement sensor (3) to move synchronously along the first direction.

2. The ignition gap adjusting device according to claim 1, characterized in that, The ignition gap adjustment device includes a scale (4), a scale indicator (5), and an image acquisition component (6). The image acquisition component (6) can acquire an image of the scale position of the scale (4) indicated by the scale indicator (5). The scale on the scale (4) is arranged along the first direction. The second rack (2.2) is connected to one of the scale (4) and the scale indicator (5). The image acquisition component (6) is communicatively connected to a remote control device. The remote control device has an instruction input module and can input adjustment instructions through the instruction input module.

3. The ignition gap adjusting device according to claim 2, characterized in that, The motor (1) and the displacement sensor (3) are connected to the remote control device via optical fiber communication or wireless communication, as are the image acquisition component (6) and the remote control device.

4. The ignition gap adjusting device according to claim 3, characterized in that, The image acquisition component (6) and the displacement sensor (3) are equipped with batteries.

5. The ignition gap adjusting device according to any one of claims 1-4, characterized in that, The transmission assembly (2) includes a first gear (2.5), a second gear (2.6), a third gear (2.7), a fourth gear (2.8), a third rack (2.3), and a fourth rack (2.4). The motor (1) is connected to the first gear (2.5) and the second gear (2.6). The first gear (2.5) meshes with the second rack (2.2), the second gear (2.6) meshes with the third rack (2.3), the third gear (2.7) meshes with the first rack (2.1), the fourth gear (2.8) meshes with the fourth rack (2.4), and the third rack (2.3) and the fourth rack (2.4) are connected or integrated.

6. The ignition gap adjusting device according to claim 5, characterized in that, The third rack (2.3) and the fourth rack (2.4) are connected by an insulating connector (2.9), or at least one of the third rack (2.3) and the fourth rack (2.4) is an insulating rack.

7. The ignition gap adjusting device according to claim 5, characterized in that, The third rack (2.3) and the fourth rack (2.4) extend along the second direction, and the third rack (2.3) is offset from the second rack (2.2) in a third direction, which is perpendicular to the first direction and the second direction.

8. The ignition gap adjusting device according to claim 5, characterized in that, The ignition gap adjustment device includes an insulating guide rail (7), and the first rack (2.1), the second rack (2.2), the third rack (2.3) and the fourth rack (2.4) are installed in the guide groove of the insulating guide rail (7) so as to guide the movement direction of the rack by the guide groove.

9. The ignition gap adjusting device according to claim 8, characterized in that, The ignition gap adjustment device includes an insulating plate (8), an insulating guide rail (7) fixedly installed on the insulating plate (8), and a first gear (2.5), a second gear (2.6), a third gear (2.7), and a fourth gear (2.8) rotatably installed on the insulating plate (8).

10. The ignition gap adjusting device according to claim 9, characterized in that, The ignition gap adjustment device includes an insulating housing (9), and the insulating plate (8) is housed in the insulating housing (9). The insulating housing (9) is provided with a first hole (9.1) into which the output shaft of the motor (1) extends, a second hole (9.2) into which the first rack (2.1) extends, a third hole (9.3) into which the first rack (2.1) extends, a fourth hole (9.4) into which the second rack (2.2) extends, and a fifth hole (9.5) into which the second rack (2.2) extends.

11. A method for adjusting the ignition gap, characterized in that, The ignition gap adjustment method includes the following steps: S1. The remote control device controls the motor (1) to drive the first electrode (01) to move closer to or further away from the second electrode (02) based on the ignition gap detected by the displacement sensor (3) and the calculated target ignition gap. S2. The ignition gap is obtained manually based on the image of the scale (4) indicated by the scale indicator (5) acquired by the image acquisition component (6). If there is a gap between the ignition gap and the target ignition gap, the manual inputs the adjustment command into the remote control device. The remote control device controls the motor (1) to move closer to or further away from the second electrode (02) according to the input adjustment command.

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