Quick gear shifting equipment for no-load transformer and use method

Abstract

The invention discloses quick gear shifting equipment for a no-load transformer and a use method. The quick gear shifting equipment comprises a controller, a gear shifting rotating shaft, a mounting seat, a rotation driving device and a gear feedback device, wherein the mounting seat is mounted on the no-load transformer; the rotation driving device and the gear feedback device are positioned on the mounting seat; the gear shifting rotating shaft is rotatably arranged on the mounting base, the gear feedback device is in transmission connection with one end of the gear shifting rotating shaft, and an adapter is arranged at the other end of the gear shifting rotating shaft and used for being connected with a gear shifting switch handle on the no-load transformer; the gear feedback device is used for feeding back the gear of the no-load transformer according to the rotating angle when the gear shifting rotating shaft drives the gear shifting switch handle to rotate; the rotation driving device is in transmission connection with the gear shifting rotating shaft, and the controller is in remote communication connection with the rotation driving device and the gear feedback device. According to the invention, accurate gear switching is realized remotely, an operator does not need to climb up to a rack for gear shifting, the gear shifting operation process of the no-load transformer is simplified, the operation risk is reduced, and the operation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer control, and in particular to a fast gear adjustment device for an unloaded transformer and a use method thereof. Background Art

[0002] The no-load transformer is a special transformer whose most notable feature is that it can work normally without connecting an output load. Under no-load conditions, the output voltage of the no-load transformer is almost equal to the input voltage, and the output current is extremely small, resulting in a very small output power, which will not have a significant impact on the transformer.

[0003] At present, most of the gear shifting switches for unloaded transformers are T-shaped and set on the top of the transformer, covered by a cover. If the operator needs to adjust the gear, he needs to fill out a work ticket in advance; and after the transformer is powered off, implement safety measures and climb up the stand to adjust the gear. Before adjusting the gear, you need to unscrew the cover and then turn the gear shifting switch. The above process has disadvantages such as many work links, cumbersome work processes, risks of falling from high-altitude operations, and risks of electric shock from reverse power transmission. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a no-load transformer rapid gear adjustment device and a use method, so as to simplify the no-load transformer gear adjustment operation process, reduce operation risks and improve operation efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A fast gear-adjusting device for an unloaded transformer, comprising a controller, a gear-adjusting shaft, a mounting seat for mounting on the unloaded transformer, and a rotation driving device and a gear position feedback device located on the mounting seat; The gear shifting shaft is rotatably arranged on the mounting seat, the gear position feedback device is drivingly connected to one end of the gear shifting shaft, an adapter is arranged on the other end of the gear shifting shaft, the adapter is used to connect the gear shifting switch handle on the no-load transformer, and the gear position feedback device is used to feedback the gear position of the no-load transformer according to the rotation angle when the gear shifting shaft drives the gear shifting switch handle to rotate; The rotary drive device is in transmission connection with the gear shifting shaft, and the controller is in remote communication connection with the rotary drive device and the gear position feedback device.

[0006] In order to solve the above technical problems, another technical solution adopted by the present invention is: A method for using an unloaded transformer rapid gear adjustment device, applied to the above-mentioned unloaded transformer rapid gear adjustment device, comprises the following steps: S1. When the no-load transformer needs to be adjusted to the target gear position, a control command is remotely sent to the rotation drive device, so that the rotation drive device drives the gear adjustment shaft to rotate synchronously with the gear adjustment switch handle; S2. Receive the feedback signal of the gear feedback device in real time, and determine whether the unloaded transformer is already in the target gear according to the feedback signal. If so, stop the rotation drive device.

[0007] The beneficial effects of the present invention are: providing a fast gear shifting device for an unloaded transformer and a method for using the device, installing the device on the unloaded transformer at a position corresponding to the gear shifting switch handle through a mounting seat, connecting the adapter and the gear shifting switch handle, and remotely driving the gear shifting shaft to rotate synchronously with the gear shifting switch handle through a rotating drive device when gear shifting is required, and relying on the gear feedback device to accurately control the rotation angle, thereby achieving precise gear switching, without the need for operators to personally climb onto the workbench to shift gears, simplifying the gear shifting operation process of the unloaded transformer, reducing operation risks, and improving operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A three-dimensional diagram of the internal structure of a no-load transformer rapid gear-adjusting device of the present invention; Figure 2 A side view of the internal structure of a no-load transformer rapid gear-adjusting device of the present invention; Figure 3 A bottom view of the internal structure of a no-load transformer rapid gear-adjusting device of the present invention; Figure 4 It is a schematic diagram of the surface structure of a no-load transformer rapid gear-adjusting device of the present invention; Figure 5 This is a schematic diagram of the distribution of various components of a no-load transformer rapid gear adjustment device of the present invention within the device housing; Figure 6 The present invention is a schematic diagram of the steps of using a method for quickly adjusting gears of an unloaded transformer.

[0009] Description of labels: 1. Mounting seat; 2. Shift shaft; 3. Adapter; 4. Shift plate; 5. Indicator rod; 6. First position indicator; 7. Second position indicator; 8. Driving motor; 9. Shift lever; 10. Shift plate; 11. Arc-shaped abutment; 12. Strip-shaped abutment; 13. Arc-shaped limit groove; 14. Strip-shaped limit groove; 15. Speed ​​reducer; 16. Gear transmission assembly; 17. Equipment housing; 18. Mounting bracket; 19. Avoidance; 20. Mounting part; 21. Circuit board; 22. Isolation bracket. DETAILED DESCRIPTION

[0010] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0011] Please refer to Figures 1 to 5 , a fast gear-adjusting device for an unloaded transformer, comprising a controller, a gear-adjusting shaft 2, a mounting seat 1 for mounting on an unloaded transformer, and a rotation driving device and a gear position feedback device located on the mounting seat 1; The gear shifting shaft 2 is rotatably arranged on the mounting seat 1, the gear position feedback device is drivingly connected to one end of the gear shifting shaft 2, and an adapter 3 is arranged on the other end of the gear shifting shaft 2, and the adapter 3 is used to connect the gear shifting switch handle on the no-load transformer, and the gear position feedback device is used to feedback the gear position of the no-load transformer according to the rotation angle of the gear shifting switch handle driven by the gear shifting shaft 2 when rotating; The rotation drive device is in transmission connection with the gear shifting shaft 2, and the controller is in remote communication connection with the rotation drive device and the gear position feedback device.

[0012] From the above description, it can be seen that the beneficial effects of the present invention are: the equipment is installed on the unloaded transformer at the position corresponding to the gear shift switch handle through the mounting base 1, the adapter 3 is connected to the gear shift switch handle, and when gear shifting is required, the gear shift shaft 2 is remotely driven by the rotating drive device to rotate synchronously with the gear shift switch handle, and the gear feedback device is used to accurately control the rotation angle, thereby realizing precise gear switching, without the need for operators to personally climb onto the workbench to shift gears, simplifying the gear shifting operation process of the unloaded transformer, reducing operation risks, and improving operation efficiency.

[0013] Further, the gear position feedback device comprises a gear plate 4, an indicator rod 5, a first in-position indicator 6, a second in-position indicator 7 and a feedback device; The shift plate 4 is arranged on the mounting seat 1, and the shift plate 4 is perpendicular to the shift shaft 2. One end of the shift shaft 2 away from the adapter 3 passes through the center of the shift plate 4 and is connected to one end of the indicator rod 5. The indicator rod 5 is parallel to the shift plate 4. The first in-position indicator 6 is connected to the feedback device, and the first in-position indicator 6 is arranged on the other end of the indicator rod 5 facing the side of the gear plate 4, and at least two second in-position indicators 7 are distributed around the gear shifting shaft 2 on the gear plate 4; When the shift shaft 2 drives the indicator rod 5 to rotate, the first in-position indicator 6 can be aligned with any one of the second in-position indicators 7; The feedback device is remotely connected to the controller for communication, and is used for sending a feedback signal to the controller when the first in-place indicator 6 and the second in-place indicator 7 are aligned.

[0014] From the above description, it can be seen that in the gear feedback part, the rotation of the gear adjustment shaft 2 is converted into the rotation of the indicator rod 5. When the indicator rod 5 rotates, it drives the first in-place indicator 6 to rotate together, so that the first in-place indicator 6 passes through different second in-place indicators 7 in turn, and the positions of the second in-place indicators 7 at different positions are used to indicate different gears; when the first in-place indicator 6 is aligned with the second in-place indicator 7, a feedback signal is formed, thereby judging which gear the unloaded transformer is currently in.

[0015] Furthermore, the second in-place indicator 7 is a charged body, and the first in-place indicator 6 is an inductive element.

[0016] From the above description, it can be known that, as an implementation mode, the cooperation between the first in-position indicator 6 and the second in-position indicator 7 can adopt the alignment method of the inductive element sensing the charged body, so as to accurately judge the gear change.

[0017] Furthermore, the rotation driving device includes a driving motor 8, a lever 9 and a dial 10; The driving motor 8 is disposed on the mounting seat 1, and the driving motor 8 is transmission-connected with the shifting rod 9, and the driving motor 8 can drive the shifting rod 9 to rotate; The dial 10 is sleeved on the gear shifting shaft 2, and the lever 9 is in contact with the side of the dial 10, and the lever 9 can drive the dial 10 to rotate when rotating; The controller is electrically connected to the driving motor 8 .

[0018] From the above description, it can be known that the rotation control part relies on the driving motor 8 as a power source, and the driving motor 8 drives the shift lever 9 to rotate. When the shift lever 9 rotates, the turntable rotates, driving the gear shift shaft 2 to rotate.

[0019] Furthermore, the two ends of the lever 9 respectively have an arc-shaped abutment portion 11 and a strip-shaped abutment portion 12; The dial 10 is provided with arc-shaped limiting grooves 13 and strip-shaped limiting grooves 14 alternately distributed along its edge; The arc-shaped limiting groove 13 is matched with the arc-shaped abutting portion 11 , and the strip-shaped limiting groove 14 is matched with the strip-shaped abutting portion 12 .

[0020] From the above description, it can be seen that on the lever 9 and the dial 10, by providing mutually matching abutment parts and limit grooves, the transmission cooperation between the two is made more stable, the arc-shaped limit groove 13 is matched with the arc-shaped abutment part 11, and the driving rotation is smoother, and the strip-shaped limit groove 14 is matched with the strip-shaped abutment part 12, so that the locking effect is better, thereby preventing the dial 10 from rotating due to other external forces.

[0021] Furthermore, it also includes a reducer 15 and a gear transmission assembly 16; The driving motor 8 is connected to the lever 9 through a gear transmission assembly 16, and the reducer 15 is arranged on the driving motor 8; The controller is electrically connected to the reducer 15 .

[0022] From the above description, it can be seen that the gear transmission assembly 16 is set to rely on the meshing transmission and tooth number design of the gear transmission assembly 16 to achieve stable and accurate transmission control. In conjunction with the reducer 15, the power transmission direction change can be smoothly completed and a common transmission ratio can be provided for all gears as an extension of the transmission.

[0023] Furthermore, the mounting base 1 includes a device housing 17 and a mounting frame 18; The mounting frame 18 is located in the device housing 17, the gear shift shaft 2, the rotation drive device and the gear position feedback device are all located on the mounting frame 18, and the device housing 17 is provided with an escape opening 19 for connecting the adapter 3 with the gear shift switch handle; A mounting member 20 is provided on one side of the escape opening 19 facing the outside of the equipment housing 17 , and the mounting member 20 is used for detachably connecting with the no-load transformer.

[0024] From the above description, it can be known that the mount includes a device housing 17 and a mounting frame 18. The device housing 17 provides outer protection, while the mounting frame 18 provides internal support to improve the stability of the device.

[0025] Furthermore, the adapter 3 is a contoured clamping member.

[0026] From the above description, it can be seen that the adapter 3 can be selected as a contoured clamping member, which can firmly clamp the gear shift switch handle and then drive it to rotate when it rotates.

[0027] Furthermore, it also includes a circuit board 21 and an isolation bracket 22; The controller is disposed on the circuit board 21 , the isolation bracket 22 is disposed on the rotation driving device, and the circuit board 21 is disposed on a side of the isolation bracket 22 away from the rotation driving device.

[0028] From the above description, it can be seen that the control part and the driving part are isolated by the isolation bracket 22, which effectively reduces the influence of the electromagnetic waves generated by the motor part on the control part.

[0029] Please refer to Figure 6 A method for using a no-load transformer rapid gear adjustment device is applied to the above-mentioned no-load transformer rapid gear adjustment device, comprising the following steps: S1. When the no-load transformer needs to be adjusted to the target gear position, a control command is remotely sent to the rotation drive device, so that the rotation drive device drives the gear adjustment shaft 2 to rotate synchronously with the gear adjustment switch handle; S2. Receive the feedback signal of the gear feedback device in real time, and determine whether the unloaded transformer is already in the target gear according to the feedback signal. If so, stop the rotation drive device.

[0030] From the above description, it can be seen that the beneficial effects of the present invention are: the equipment is installed on the unloaded transformer at the position corresponding to the gear shift switch handle through the mounting base 1, the adapter 3 is connected to the gear shift switch handle, and when gear shifting is required, the gear shift shaft 2 is remotely driven by the rotating drive device to rotate synchronously with the gear shift switch handle, and the gear feedback device is used to accurately control the rotation angle, thereby realizing precise gear switching, without the need for operators to personally climb onto the workbench to shift gears, simplifying the gear shifting operation process of the unloaded transformer, reducing operation risks, and improving operation efficiency.

[0031] Please refer to Figures 1 to 5 , Embodiment 1 of the present invention is: A fast gear-shifting device for an unloaded transformer comprises a controller, a gear-shifting shaft 2, a mounting base 1 for mounting on an unloaded transformer, and a rotation drive device and a gear feedback device located on the mounting base 1; the gear-shifting shaft 2 is rotatably arranged on the mounting base 1, the gear feedback device is transmission-connected with one end of the gear-shifting shaft 2, an adapter 3 is provided on the other end of the gear-shifting shaft 2, the adapter 3 is used to connect the gear-shifting switch handle on the unloaded transformer, and the gear feedback device is used to feedback the gear position of the unloaded transformer according to the rotation angle of the gear-shifting switch handle when the gear-shifting shaft 2 drives the gear-shifting switch handle to rotate; the rotation drive device is transmission-connected with the gear-shifting shaft 2, and the controller is remotely communication-connected with the rotation drive device and the gear feedback device.

[0032] In this embodiment, the main control chip uses STMicroelectronics' STM32F103. This chip is an ARM CORTEX-M0 core with an operating frequency of up to 48Mhz, which can easily complete various calculations and controls. The built-in 64KB FLASH-ROM and 10KB SRAM can develop more application functions. The LED light-emitting tube is used as a gear display, and the corresponding green indicator light lights up when the gear switch handle is in gear. The target gear indicator light flashes during the gear adjustment process. The red fault indicator light lights up when there is no gear signal or the motor does not run in place.

[0033] like Figure 1 and Figure 2As shown, the rotation drive device includes a drive motor 8, a lever 9 and a dial 10; the drive motor 8 is arranged on the mounting seat 1, the drive motor 8 is connected to the lever 9 in a transmission manner, and the drive motor 8 can drive the lever 9 to rotate; the dial 10 is sleeved on the gear adjustment shaft 2, the lever 9 is in contact with the side of the dial 10, and the lever 9 can drive the dial 10 to rotate when rotating; the controller is electrically connected to the drive motor 8. The drive motor 8 is powered by a built-in lithium battery with a battery specification of DC24V / 2.6AH. With an external charging adapter, the motor can run continuously for 1 hour when the battery is fully charged. In order to improve the control accuracy, a magnetic Hall sensor is installed on the motor spindle to detect the motor rotation angle and ensure the accuracy of the gear adjustment position. The number of dials 10 can be selected as at least two, all of which are sleeved on the gear adjustment shaft 2, and one of them is in contact with the lever 9.

[0034] From the perspective of software algorithm design, the gear feedback device can use a magnetic Hall sensor to output a PWM waveform according to the change of the magnetic field; the sensor resolution can reach 0.088°. The controller collects the waveform and calculates the motor rotation angle to achieve gear feedback.

[0035] Considering the transmission structure, Figure 1 and Figure 2 As shown, the gear feedback device may include a gear plate 4, an indicator rod 5, a first in-position indicator 6, a second in-position indicator 7 and a feedback device; the gear plate 4 is arranged on the mounting seat 1, the gear plate 4 is perpendicular to the gear shift shaft 2, the end of the gear shift shaft 2 away from the adapter 3 passes through the center of the gear plate 4 and is connected to one end of the indicator rod 5, and the indicator rod 5 is parallel to the gear plate 4; the first in-position indicator 6 is connected to the feedback device, the first in-position indicator 6 is arranged on the other end of the indicator rod 5 facing the gear plate 4, and at least two second in-position indicators 7 are distributed around the gear shift shaft 2 on the gear plate 4; when the gear shift shaft 2 drives the indicator rod 5 to rotate, the first in-position indicator 6 can be aligned with any one of all the second in-position indicators 7; the feedback device is remotely connected to the controller for communication, and the feedback device is used to send a feedback signal to the controller when the first in-position indicator 6 is aligned with the second in-position indicator 7.

[0036] Preferably, the second in-position indicator 7 is a charged body, and the first in-position indicator 6 is an inductive element. In other equivalent embodiments, the first in-position indicator 6 and the second in-position indicator 7 can also be matched by other induction methods such as dynamic and static contact, infrared sensor obstacle indicator light, etc.

[0037] In this embodiment, if Figure 3As shown, the two ends of the lever 9 are respectively provided with an arc-shaped abutment portion 11 and a strip-shaped abutment portion 12; the dial 10 is provided with an arc-shaped limiting groove 13 and a strip-shaped limiting groove 14 which are alternately distributed along its edge; the arc-shaped limiting groove 13 is matched with the arc-shaped abutment portion 11, and the strip-shaped limiting groove 14 is matched with the strip-shaped abutment portion 12.

[0038] In this embodiment, if Figure 1 and Figure 3 As shown, it also includes a reducer 15 and a gear transmission assembly 16; the drive motor 8 is connected to the lever 9 through the gear transmission assembly 16, and the reducer 15 is arranged on the drive motor 8; the controller is electrically connected to the reducer 15. Among them, the gear transmission assembly 16 can be selected in a way of multiple gear meshing, and a gear cover is arranged on the gear, and one of the gears is matched with the lever 9 through a transmission shaft.

[0039] In this embodiment. Combined Figure 4 and Figure 5 As shown, the mounting base 1 includes an equipment housing 17 and a mounting frame 18; the mounting frame 18 is located inside the equipment housing 17, the gear adjustment shaft 2, the rotation drive device and the gear position feedback device are all located on the mounting frame 18, and the equipment housing 17 is provided with an escape opening 19 for connecting the adapter 3 with the gear adjustment switch handle; the escape opening 19 is provided with a mounting member 20 on the side facing the outside of the equipment housing 17, and the mounting member 20 is used for detachable connection with the no-load transformer. Among them, the adapter 3 is preferably a contoured clamp. The mounting member 20 can be optionally a flange, and a mounting nut is provided on the flange.

[0040] In this embodiment, it also includes a circuit board 21 and an isolation bracket 22; the controller is arranged on the circuit board 21, the isolation bracket 22 is arranged on the rotation drive device, and the circuit board 21 is arranged on a side of the isolation bracket 22 away from the rotation drive device.

[0041] Please refer to Figure 6 , Embodiment 2 of the present invention is: A method for using an unloaded transformer rapid gear adjustment device, applied to an unloaded transformer rapid gear adjustment device of embodiment 1, comprises the following steps: S1. When the no-load transformer needs to be adjusted to the target gear position, a control command is remotely sent to the rotation drive device, so that the rotation drive device drives the gear adjustment shaft 2 to rotate synchronously with the gear adjustment switch handle; S2. Receive the feedback signal of the gear feedback device in real time, and determine whether the no-load transformer is in the target gear according to the feedback signal. If so, stop the rotation drive device.

[0042] In this embodiment, different gear positions are indicated by the alignment and cooperation between the first in-position indicator 6 and different second in-position indicators 7 .

[0043] To sum up, the present invention provides a no-load transformer rapid gear shifting device and a method of use. The device is installed on the no-load transformer at a position corresponding to the gear shifting switch handle through a mounting seat, and the adapter is connected to the gear shifting switch handle. When gear shifting is required, the gear shifting shaft is remotely driven by a rotating drive device to rotate synchronously with the gear shifting switch handle, and the gear position feedback device is used to accurately control the rotation angle, thereby realizing precise gear switching. There is no need for operators to climb onto the workbench to shift gears in person, which reduces the process of arranging safety measures, eliminates the risk of falling onto the stage and electric shock, and is simple and quick to operate. This simplifies the no-load transformer gear shifting operation process, reduces operation risks, and improves operation efficiency.

[0044] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fast gear adjustment device for an unloaded transformer, characterized in that: It includes a controller, a gear-adjusting shaft, a mounting seat for mounting on an unloaded transformer, and a rotation driving device and a gear position feedback device located on the mounting seat; The gear shifting shaft is rotatably arranged on the mounting seat, the gear position feedback device is drivingly connected to one end of the gear shifting shaft, an adapter is arranged on the other end of the gear shifting shaft, the adapter is used to connect the gear shifting switch handle on the no-load transformer, and the gear position feedback device is used to feedback the gear position of the no-load transformer according to the rotation angle when the gear shifting shaft drives the gear shifting switch handle to rotate; The rotary drive device is in transmission connection with the gear shifting shaft, and the controller is in remote communication connection with the rotary drive device and the gear position feedback device.

2. The no-load transformer rapid gear adjustment device according to claim 1, characterized in that: The gear position feedback device comprises a gear position plate, an indicator rod, a first in-position indicator, a second in-position indicator and a feedback device; The shift plate is arranged on the mounting seat, the shift plate is perpendicular to the shift shaft, one end of the shift shaft away from the adapter passes through the center of the shift plate and is connected to one end of the indicator rod, and the indicator rod is parallel to the shift plate; The first in-position indicator is connected to the feedback device, and the first in-position indicator is arranged on the other end of the indicator rod facing the side of the gear plate, and at least two second in-position indicators are distributed around the gear shifting shaft on the gear plate; When the shift shaft drives the indicator rod to rotate, the first in-position indicator can be aligned with any one of the second in-position indicators; The feedback device is remotely connected to the controller for communication, and is used for sending a feedback signal to the controller when the first in-place indicator and the second in-place indicator are aligned.

3. The no-load transformer rapid gear adjustment device according to claim 2 is characterized in that: The second in-place indicator is a charged body, and the first in-place indicator is an inductive element.

4. The no-load transformer rapid gear adjustment device according to claim 1, characterized in that: The rotation driving device comprises a driving motor, a lever and a dial; The driving motor is arranged on the mounting seat, the driving motor is in transmission connection with the shifting rod, and the driving motor can drive the shifting rod to rotate; The dial is sleeved on the gear shifting shaft, the lever is in contact with the side of the dial, and the lever can drive the dial to rotate when rotating; The controller is electrically connected to the driving motor.

5. The no-load transformer rapid gear adjustment device according to claim 4, characterized in that: The two ends of the lever are respectively provided with an arc-shaped abutment portion and a strip-shaped abutment portion; The dial is provided with arc-shaped limiting grooves and strip-shaped limiting grooves alternately distributed along its edge; The arc-shaped limiting groove is matched with the arc-shaped abutting portion, and the strip-shaped limiting groove is matched with the strip-shaped abutting portion.

6. The no-load transformer rapid gear-shifting device according to claim 4, characterized in that: Also includes a speed reducer and a gear transmission assembly; The driving motor is connected to the shifting rod through the gear transmission assembly, and the reducer is arranged on the driving motor; The controller is electrically connected to the reducer.

7. The no-load transformer rapid gear adjustment device according to claim 1, characterized in that: The mounting base includes a device housing and a mounting frame; The mounting frame is located in the device housing, the gear shifting shaft, the rotation driving device and the gear position feedback device are all located on the mounting frame, and the device housing is provided with an escape opening for connecting the adapter with the gear shifting switch handle; A mounting piece is provided on one side of the avoidance opening facing the outside of the equipment housing, and the mounting piece is used for detachably connecting with the no-load transformer.

8. The no-load transformer rapid gear-shifting device according to claim 1, characterized in that: The adapter is a contoured clamping piece.

9. The no-load transformer rapid gear-shifting device according to claim 1, characterized in that: It also includes a circuit board and an isolation bracket; The controller is arranged on the circuit board, the isolation bracket is arranged on the rotation driving device, and the circuit board is arranged on a side of the isolation bracket away from the rotation driving device.

10. A method for using an unloaded transformer rapid gear adjustment device, applied to an unloaded transformer rapid gear adjustment device according to any one of claims 1 to 9, characterized in that: The steps include: S1. When the no-load transformer needs to be adjusted to the target gear position, a control command is remotely sent to the rotation drive device, so that the rotation drive device drives the gear adjustment shaft to rotate synchronously with the gear adjustment switch handle; S2. Receive the feedback signal of the gear feedback device in real time, and determine whether the unloaded transformer is already in the target gear according to the feedback signal. If so, stop the rotation drive device.

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