A cleaning device for the excitation leads of a hydro generator

Abstract

This disclosure discloses a cleaning device for the excitation leads of a hydro-generator, comprising: a traveling trolley for traveling along the length of the excitation lead on the inner wall of the rotor shaft of the hydro-generator, with a cleaning channel formed between the traveling trolley and the inner wall of the rotor shaft, the excitation lead being located within the cleaning channel; multiple brush assemblies, each mounted on the traveling trolley and located within the cleaning channel, with the brush assemblies abutting against the excitation lead; a negative pressure recovery assembly for negatively recovering debris from the excitation lead; and a positive pressure spraying assembly for spraying cleaning agent onto the excitation lead. This cleaning device for the excitation leads of a hydro-generator enables automated cleaning of the excitation leads and achieves high cleaning quality and efficiency.

Description

Technical Field

[0001] This disclosure relates to the field of excitation lead cleaning technology, and in particular to a cleaning device for excitation leads of hydro generators. Background Technology

[0002] The excitation leads (copper busbars) of a hydro-generator are an important component of the generator, and their surface cleanliness directly affects the generator's operating efficiency and lifespan. Due to long-term operation, dirt, oxide layers, and corrosion easily accumulate on the surface of the excitation leads, leading to a decline in insulation performance and thus affecting the normal operation of the equipment.

[0003] The excitation leads are located inside the rotor shaft of the generator. During maintenance, due to limited space and the large length of the copper busbars, operators cannot directly clean the excitation leads. Cleaning is difficult and time-consuming, making it difficult to meet the requirements of high efficiency and high quality. Summary of the Invention

[0004] This disclosure aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, the purpose of this disclosure is to provide a cleaning device for the excitation leads of a hydro generator.

[0006] To achieve the above objectives, this disclosure provides a cleaning device for the excitation lead of a hydro-generator, comprising: a traveling trolley for traveling along the length of the excitation lead on the inner wall of the rotor shaft of the hydro-generator, and a cleaning channel is formed between the traveling trolley and the inner wall of the rotor shaft, the excitation lead being located within the cleaning channel; a plurality of brush assemblies, the plurality of brush assemblies being respectively disposed on the traveling trolley and located within the cleaning channel, the brush assemblies abutting against the excitation lead; a negative pressure recovery assembly, the negative pressure end of the negative pressure recovery assembly being disposed on the traveling trolley and located within the cleaning channel, and the negative pressure recovery assembly being used to negatively recover waste debris on the excitation lead; and a positive pressure spraying assembly, the positive pressure end of the positive pressure spraying assembly being disposed on the traveling trolley and located within the cleaning channel, and the positive pressure spraying assembly being used to spray cleaning agent onto the excitation lead.

[0007] Optionally, the traveling trolley includes: a trolley body, the trolley body being provided with a cleaning groove, and the cleaning groove and the inner wall of the rotor shaft being disposed opposite each other to form the cleaning channel; multiple wheels, the wheels being rotatably disposed on the trolley body, and the multiple wheels being respectively located on both sides of the cleaning channel; a first drive mechanism, the first drive mechanism being disposed on the trolley body, and the power output end of the first drive mechanism being tractively connected to the power input end of the wheels, the first drive mechanism being used to drive the wheels to rotate; and a magnetic attraction assembly, the magnetic attraction assembly being disposed on the side of the trolley body near the inner wall of the rotor shaft, and the magnetic attraction assembly and the inner wall of the rotor shaft having a preset attraction force, so that the wheels abut against the inner wall of the rotor shaft.

[0008] Optionally, the magnetic attraction assembly includes: a permanent magnet disposed on the side of the vehicle body near the inner wall of the rotor shaft, and the permanent magnet and the inner wall of the rotor shaft have a first attraction force; an electromagnet disposed on the side of the vehicle body near the inner wall of the rotor shaft, and the electromagnet and the inner wall of the rotor shaft have a second attraction force; and a current adjustment module disposed at the power supply terminal of the electromagnet, and the current adjustment module is used to adjust the current at the power supply terminal of the electromagnet to control the magnitude of the second attraction force.

[0009] Optionally, the walking trolley further includes a backup battery, which is disposed in the trolley body, and the power supply terminal of the backup battery is connected to the power supply terminal of the first drive mechanism and the power supply terminal of the electromagnet, respectively.

[0010] Optionally, the brush assembly includes: a brush holder, which is rotatably mounted on the traveling trolley and located within the cleaning channel; a flexible tube, which is detachably mounted on the brush holder and abuts against the excitation lead; and a second drive mechanism, which is mounted on the traveling trolley and whose power output end is connected to the power input end of the brush holder, the second drive mechanism being used to drive the brush holder to rotate.

[0011] Optionally, the brush assembly further includes: a conveying channel that passes through the brush holder along the rotational central axis of the brush holder and extends to the surface of the flexible tube; a rotary joint, the stationary outer shell of which is disposed on the traveling trolley, and the rotating inner core of which is connected to the end of the conveying channel away from the surface of the flexible tube; and a reversing valve, the first end of which is connected to the stationary outer shell of the rotary joint, the second end of which is connected to the negative pressure end of the negative pressure recovery assembly, and the third end of which is connected to the positive pressure end of the positive pressure spraying assembly; wherein the first and second ends of the reversing valve are connected to allow the negative pressure recovery assembly to recover waste debris on the excitation lead through the conveying channel, or the first and third ends of the reversing valve are connected to allow the positive pressure spraying assembly to spray cleaning agent onto the excitation lead through the conveying channel.

[0012] Optionally, the plurality of brush assemblies are respectively located on the side of the excitation lead near the inner wall of the rotor shaft and on the side of the excitation lead near the traveling trolley, and the distance between the brush assembly located on the side of the excitation lead near the inner wall of the rotor shaft and the brush assembly located on the side of the excitation lead near the traveling trolley is less than the thickness of the excitation lead.

[0013] Optionally, the negative pressure recovery assembly includes: a recovery box, the air inlet of which is disposed on the traveling trolley and located within the cleaning channel; a filter screen, which is disposed within the recovery box and located between the air inlet and outlet of the recovery box; and a negative pressure device, the air inlet of which is connected to the air outlet of the recovery box, and the negative pressure device is used to create negative pressure within the recovery box.

[0014] Optionally, the positive pressure spray assembly includes: a storage tank containing the cleaning agent; and a delivery pump, the inlet of which is connected to the outlet of the storage tank, and the outlet of which is located on the traveling trolley and within the cleaning channel. The delivery pump is used to pressurize and deliver the cleaning agent into the cleaning channel.

[0015] Optionally, the cleaning device further includes a vision module, wherein the camera end of the vision module is mounted on the traveling trolley and faces the excitation lead, and the vision module is used to capture images of the excitation lead.

[0016] The technical solution provided in this disclosure may include the following beneficial effects:

[0017] By combining a traveling trolley, a brush assembly, a negative pressure recovery assembly, and a positive pressure spray assembly, automated cleaning of the excitation leads can be achieved with high cleaning quality and efficiency, thus ensuring the high-performance operation of the hydro-generator.

[0018] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0020] Figure 1 This is a schematic diagram of the structure of the traveling trolley in a cleaning device for the excitation leads of a hydro-generator according to an embodiment of this disclosure;

[0021] Figure 2 This is a flow path schematic diagram of a cleaning device for the excitation leads of a hydro-generator according to an embodiment of this disclosure;

[0022] As shown in the figure: 1. Walking trolley, 11. Car body, 12. Wheel, 13. First drive mechanism, 14. Magnetic suction assembly;

[0023] 2. Brush assembly; 21. Brush holder; 22. Flexible tube; 23. Conveying channel; 24. Rotary joint; 25. Reversing valve;

[0024] 3. Negative pressure recovery assembly; 31. Recovery box; 32. Filter screen; 33. Negative pressure equipment;

[0025] 4. Positive pressure spray assembly; 41. Storage tank; 42. Transfer pump. Detailed Implementation

[0026] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0027] like Figure 1 and Figure 2As shown in the present disclosure, an embodiment of the present disclosure proposes a cleaning device for the excitation lead of a hydro-generator, comprising: a traveling trolley 1, multiple brush assemblies 2, a negative pressure recovery assembly 3, and a positive pressure spraying assembly 4. The traveling trolley 1 is used to travel along the length direction of the excitation lead on the inner wall of the rotor shaft of the hydro-generator, and a cleaning channel is formed between the traveling trolley 1 and the inner wall of the rotor shaft. The excitation lead is located in the cleaning channel. The multiple brush assemblies 2 are respectively disposed on the traveling trolley 1 and located in the cleaning channel, and the brush assemblies 2 abut against the excitation lead. The negative pressure end of the negative pressure recovery assembly 3 is disposed on the traveling trolley 1 and located in the cleaning channel, and the negative pressure recovery assembly 3 is used to negatively recover waste debris on the excitation lead. The positive pressure end of the positive pressure spraying assembly 4 is disposed on the traveling trolley 1 and located in the cleaning channel, and the positive pressure spraying assembly 4 is used to spray cleaning agent onto the excitation lead.

[0028] Understandably, since multiple brush assemblies 2 are respectively installed on the traveling trolley 1 and located in the cleaning channel formed between the traveling trolley 1 and the inner wall of the rotor shaft, the brush assemblies 2 can use the movement of the traveling trolley 1 to achieve a comprehensive cleaning of the excitation leads in the cleaning channel. Furthermore, since the negative pressure end of the negative pressure recovery assembly 3 is installed on the traveling trolley 1 and located in the cleaning channel, the negative pressure recovery assembly 3 can recover the debris swept off the excitation leads under negative pressure. And since the positive pressure spray assembly 4 is installed on the traveling trolley 1 and located in the cleaning channel, the positive pressure spray assembly 4 can spray cleaning agent onto the excitation leads, thereby cleaning the excitation leads with the cleaning agent.

[0029] Therefore, through the cooperation of the traveling trolley 1, brush assembly 2, negative pressure recovery assembly 3 and positive pressure spray assembly 4, the excitation lead wire can be automatically cleaned with high cleaning quality and efficiency, thus ensuring the high-performance operation of the hydro-generator.

[0030] It should be noted that in a hydro-generator, the excitation winding is arranged on the rotor shaft, and the excitation leads (copper busbars) are arranged on the inner wall of the rotor shaft and connected to the excitation winding by bolts and other fasteners.

[0031] The mobile trolley 1 is used to carry the brush assembly 2, the negative pressure end of the negative pressure recovery assembly 3, the positive pressure end of the positive pressure spray assembly 4, etc., and to achieve mobile cleaning. The specific type of the mobile trolley 1 can be set according to actual needs and there are no restrictions on it.

[0032] The brush assembly 2 is used to clean the excitation leads. The specific type of the brush assembly 2 can be set according to actual needs and there are no restrictions on it.

[0033] The negative pressure recovery component 3 is used to recover waste debris from the excitation lead under negative pressure, and the positive pressure spray component 4 is used to spray cleaning agent onto the excitation lead. The specific types of the negative pressure recovery component 3 and the positive pressure spray component 4 can be set according to actual needs and are not limited thereto. The cleaning agent can be alcohol.

[0034] like Figure 1 As shown, in some embodiments, the walking vehicle 1 includes: a vehicle body 11, multiple wheels 12, a first drive mechanism 13, and a magnetic attraction assembly 14. The vehicle body 11 is provided with a cleaning groove, and the cleaning groove and the inner wall of the rotor shaft are arranged opposite to each other to form a cleaning channel. The wheels 12 are rotatably mounted on the vehicle body 11, and the multiple wheels 12 are respectively located on both sides of the cleaning channel. The first drive mechanism 13 is mounted on the vehicle body 11, and the power output end of the first drive mechanism 13 is connected to the power input end of the wheels 12. The first drive mechanism 13 is used to drive the wheels 12 to rotate. The magnetic attraction assembly 14 is located on the side of the vehicle body 11 near the inner wall of the rotor shaft, and there is a preset attraction between the magnetic attraction assembly 14 and the inner wall of the rotor shaft so that the wheels 12 abut against the inner wall of the rotor shaft.

[0035] It is understandable that, since the wheels 12 are rotatably mounted on the vehicle body 11 and multiple wheels 12 are located on both sides of the cleaning channel, the power output end of the first drive mechanism 13 is connected to the power input end of the wheels 12, so that the first drive mechanism 13 can drive the wheels 12 to rotate, thereby enabling the vehicle body 11 to move along the length of the excitation lead. Furthermore, since the magnetic attraction component 14 is located on the side of the vehicle body 11 close to the inner wall of the rotor shaft, and there is a preset attraction between the magnetic attraction component 14 and the inner wall of the rotor shaft, the wheels 12 can abut against the inner wall of the rotor shaft, thereby ensuring the stable movement of the vehicle body 11 within the rotor shaft.

[0036] It should be noted that the vehicle body 11 is the main structure of the traveling vehicle 1. The specific type of the vehicle body 11 can be set according to actual needs and there are no restrictions on it. For example, the vehicle body 11 has a U-shaped structure, and the U-shaped groove of the vehicle body 11 is the cleaning groove. The vehicle body 11 can also use telescopic rods for support and guidance.

[0037] The wheels 12 are used for the vehicle body 11 to travel on the inner wall of the rotor shaft. The specific type of the wheels 12 can be set according to actual needs and there is no limitation. For example, the diameter of the wheels 12 is four centimeters, and there can be four wheels 12, with two wheels 12 arranged on each side of the vehicle body 11.

[0038] The first drive mechanism 13 is used to drive the wheels 12 to rotate. The specific type of the first drive mechanism 13 can be set according to actual needs and is not limited thereto. For example, the first drive mechanism 13 can be a drive mechanism that combines a drive motor and a reducer, and the first drive mechanism 13 can drive a small number of the wheels 12 so that a small number of the wheels 12 serve as the main drive wheels and the remaining wheels 12 serve as auxiliary wheels.

[0039] The power supply for the traveling trolley 1 and other components can be achieved remotely by using the traveling trolley 1 to tow a cable, or it can be self-powered by using the onboard battery.

[0040] The magnetic attachment component 14 is used to attach the vehicle body 11 to the inner wall of the rotor shaft to prevent it from falling off. The specific type of the magnetic attachment component 14 can be set according to actual needs and there are no restrictions on it.

[0041] In some embodiments, the magnetic attraction assembly 14 includes: a permanent magnet, an electromagnet, and a current adjustment module. The permanent magnet is disposed on the side of the vehicle body 11 near the inner wall of the rotor shaft, and there is a first attraction between the permanent magnet and the inner wall of the rotor shaft. The electromagnet is disposed on the side of the vehicle body 11 near the inner wall of the rotor shaft, and there is a second attraction between the electromagnet and the inner wall of the rotor shaft. The current adjustment module is disposed at the power supply terminal of the electromagnet, and the current adjustment module is used to adjust the current at the power supply terminal of the electromagnet to control the magnitude of the second attraction.

[0042] Understandably, since the permanent magnet is located on the side of the vehicle body 11 near the inner wall of the rotor shaft, and there is a first attraction between the permanent magnet and the inner wall of the rotor shaft, and the electromagnet is located on the side of the vehicle body 11 near the inner wall of the rotor shaft, and there is a second attraction between the electromagnet and the inner wall of the rotor shaft, the vehicle body 11 can be attracted to the inner wall of the rotor shaft by utilizing the first attraction between the permanent magnet and the inner wall of the rotor shaft and the second attraction between the electromagnet and the inner wall of the rotor shaft, thereby ensuring the stable movement of the traveling vehicle 1. At the same time, since the current adjustment module is located at the power supply end of the electromagnet, the current adjustment module can adjust the current at the power supply end of the electromagnet, thereby controlling the magnitude of the second attraction, and thus ensuring that the traveling vehicle 1 can adapt to different driving environments.

[0043] It should be noted that the permanent magnet has permanent magnet properties, which can provide a continuous attraction force for the vehicle body 11, and also facilitate the removal of the vehicle body 11 from the inner wall of the rotor shaft. The specific type of permanent magnet can be set according to actual needs and is not limited thereto. Among them, two permanent magnets can be set, respectively arranged between the wheels 12 on both sides of the vehicle body 11.

[0044] An electromagnet becomes magnetic when energized and loses its magnetism when de-energized. When energized, it provides a continuous attraction force to the vehicle body 11, while when de-energized, it facilitates the removal of the vehicle body 11 from the inner wall of the rotor shaft. The specific type of electromagnet can be set according to actual needs and is not limited thereto. Two electromagnets can be set, respectively arranged between the wheels 12 on both sides of the vehicle body 11.

[0045] The current regulating module is used to regulate the current of the electromagnet. The specific type of the current regulating module can be set according to actual needs and there is no restriction on it. For example, the current regulating module can be a power conversion circuit composed of variable resistors or a current regulating chip.

[0046] In some embodiments, the walking vehicle 1 further includes a backup battery, which is disposed inside the vehicle body 11, and the power supply terminal of the backup battery is connected to the power supply terminal of the first drive mechanism 13 and the power supply terminal of the electromagnet, respectively.

[0047] It is understandable that since the backup battery is located inside the vehicle body 11, and the power supply end of the backup battery is connected to the power supply end of the first drive mechanism 13 and the power supply end of the electromagnet respectively, the walking trolley 1 can continue to move when it cannot get power, thereby avoiding the walking trolley 1 from being stuck inside the rotor shaft due to a malfunction.

[0048] It should be noted that the backup battery is used for emergency power supply of the walking trolley 1. The specific type of backup battery can be set according to actual needs, and there are no restrictions on it.

[0049] like Figure 1 As shown, in some embodiments, the brush assembly 2 includes: a brush holder 21, a flexible tube 22, and a second drive mechanism (not shown in the figure). The brush holder 21 is rotatably mounted on the traveling trolley 1 and located in the cleaning channel. The flexible tube 22 is detachably mounted on the brush holder 21 and abuts against the excitation lead. The second drive mechanism is mounted on the traveling trolley 1, and the power output end of the second drive mechanism is connected to the power input end of the brush holder 21. The second drive mechanism is used to drive the brush holder 21 to rotate.

[0050] Understandably, since the brush holder 21 is rotatably mounted on the traveling trolley 1 and located within the cleaning channel, and the flexible tube 22 is detachably mounted on the brush holder 21, with the flexible tube 22 abutting against the excitation lead, and the power output end of the second drive mechanism connected to the power input end of the brush holder 21, the second drive mechanism can drive the brush holder 21 to rotate, thereby driving the flexible tube 22 to clean the excitation lead, thus ensuring the cleanliness of the excitation lead. At the same time, the flexibility of the flexible tube 22 itself can cope with obstructions such as bolts on the excitation lead, thereby avoiding damage to the brush assembly 2 while cleaning the excitation lead. Furthermore, the detachable structure of the flexible tube 22 on the brush holder 21 facilitates the disassembly and replacement of the flexible tube 22, making the use of the brush assembly 2 more convenient and cost-effective.

[0051] It should be noted that the brush holder 21 is used to support the flexible tube 22. The specific type of the brush holder 21 can be set according to actual needs and there is no limitation. For example, the brush holder 21 can be a seat structure with a rotating shaft, and the rotating shaft of the brush holder 21 is arranged on the vehicle body 11 through bearings. The rotating shaft of the brush holder 21 and the second drive mechanism are connected by gears or the like for transmission.

[0052] The flexible tube 22 is a flexible structure used to rotate under the drive of the brush holder 21, thereby cleaning the excitation leads. The flexible tube 22 has a certain elastic deformation capability. The specific type of the flexible tube 22 can be set according to actual needs and there are no restrictions on it.

[0053] The second drive mechanism is used to drive the brush holder 21 to rotate in both directions so as to clean the excitation lead by the flexible tube 22. The specific type of the second drive mechanism can be set according to actual needs and there is no restriction. For example, the second drive mechanism can be a drive motor, which is connected to the rotating shaft of the brush holder 21 through gear transmission.

[0054] like Figure 2 As shown, in some embodiments, the brush assembly 2 further includes: a conveying channel 23, a rotary joint 24, and a reversing valve 25. The conveying channel 23 extends along the rotational central axis of the brush holder 21 through the brush holder 21 and extends to the surface of the flexible tube 22. The stationary outer shell of the rotary joint 24 is mounted on the traveling trolley 1, and the rotating inner core of the rotary joint 24 is connected to the end of the conveying channel 23 away from the surface of the flexible tube 22. The first end of the reversing valve 25 is connected to the stationary outer shell of the rotary joint 24, and the second end of the reversing valve 25 is connected to the negative pressure end of the negative pressure recovery assembly 3. The third end of the reversing valve 25 is connected to the positive pressure end of the positive pressure spraying assembly 4. The first and second ends of the reversing valve 25 are connected to allow the negative pressure recovery assembly 3 to recover waste debris from the excitation lead through the conveying channel 23, or the first and third ends of the reversing valve 25 are connected to allow the positive pressure spraying assembly 4 to spray cleaning agent onto the excitation lead through the conveying channel 23.

[0055] It is understandable that, since the conveying channel 23 passes through the brush holder 21 along the rotation center axis of the brush holder 21 and extends to the surface of the flexible tube 22, and the rotating inner core of the rotary joint 24 is connected to the end of the conveying channel 23 away from the surface of the flexible tube 22, and the first end of the reversing valve 25 is connected to the stationary outer shell of the rotary joint 24, the first end of the reversing valve 25 and the surface of the flexible tube 22 can be connected by the conveying channel 23. At the same time, the setting of the rotary joint 24 also avoids affecting the rotation of the brush holder 21.

[0056] Furthermore, since the second end of the reversing valve 25 is connected to the negative pressure end of the negative pressure recovery assembly 3, and the third end of the reversing valve 25 is connected to the positive pressure spray assembly 4, when the first and second ends of the reversing valve 25 are open, the negative pressure recovery assembly 3 can negatively recover the waste on the excitation lead through the conveying channel 23. When the first and third ends of the reversing valve 25 are open, the positive pressure spray assembly 4 can spray cleaning agent onto the excitation lead through the conveying channel 23. Thus, by switching the reversing valve 25, both the negative pressure recovery assembly 3 and the positive pressure spray assembly 4 can use the conveying channel 23 integrated in the flexible tube 22 to clean the excitation lead.

[0057] It should be noted that the conveying channel 23 is used to integrate the brush holder 21 and the flexible tube 22 so that the negative pressure recovery component 3 and the flexible tube 22 can cooperate to achieve negative pressure absorption of waste, and the positive pressure spraying component 4 and the flexible tube 22 can cooperate to achieve positive pressure spraying of cleaning agent. The specific type of the conveying channel 23 can be set according to actual needs and is not limited thereto. For example, the conveying channel 23 includes a first hole arranged at the central axis of the brush holder 21 and a plurality of second holes arranged in the flexible tube 22.

[0058] The rotary joint 24 is used to conduct the brush holder 21 during rotation. The rotary joint 24 has a stationary outer shell and a rotating inner core. The stationary outer shell and the rotating inner core are arranged to rotate relative to each other and have a sealing structure. While conducting the connection, the rotation of the brush holder 21 is avoided. The specific type of rotary joint 24 can be set according to actual needs and there is no limitation on it.

[0059] The reversing valve 25 is used to switch between the passage between the negative pressure end of the negative pressure recovery component 3 and the end of the conveying channel 23 away from the surface of the flexible pipe 22, and the passage between the positive pressure end of the positive pressure spray component 4 and the end of the conveying channel 23 away from the surface of the flexible pipe 22. The specific type of the reversing valve 25 can be set according to actual needs and there are no restrictions on it.

[0060] In some embodiments, a plurality of brush assemblies 2 are respectively located on the side of the excitation lead near the inner wall of the rotor shaft and on the side of the excitation lead near the traveling trolley 1, and the distance between the brush assembly 2 located on the side of the excitation lead near the inner wall of the rotor shaft and the brush assembly 2 located on the side of the excitation lead near the traveling trolley 1 is less than the thickness of the excitation lead.

[0061] Understandably, since multiple brush assemblies 2 are located on the side of the excitation lead near the inner wall of the rotor shaft and the side of the excitation lead near the traveling trolley 1 respectively, both sides of the excitation lead can be cleaned using the brush assemblies 2, thereby ensuring high cleaning efficiency and quality. At the same time, since the distance between the brush assemblies 2 located on the side of the excitation lead near the inner wall of the rotor shaft and the side of the excitation lead near the traveling trolley 1 is less than the thickness of the excitation lead, the brush assemblies 2 located on the side of the excitation lead near the inner wall of the rotor shaft and the side of the excitation lead near the traveling trolley 1 can form a clamping effect on the excitation lead, thereby effectively improving the cleaning quality and efficiency of the excitation lead by the brush assemblies 2.

[0062] like Figure 2 As shown, in some embodiments, the negative pressure recovery assembly 3 includes: a recovery box 31, a filter screen 32, and a negative pressure device 33. The air inlet of the recovery box 31 is mounted on the traveling trolley 1 and located in the cleaning channel. The filter screen 32 is mounted inside the recovery box 31 and is located between the air inlet and the air outlet of the recovery box 31. The air inlet of the negative pressure device 33 is connected to the air outlet of the recovery box 31, and the negative pressure device 33 is used to create negative pressure inside the recovery box 31.

[0063] Understandably, since the air inlet of the recycling box 31 is located on the traveling trolley 1 and within the cleaning channel, and the air inlet of the negative pressure device 33 is connected to the air outlet of the recycling box 31, the negative pressure device 33 can create negative pressure within the recycling box 31, thereby enabling the transport of waste debris from the excitation lead to the recycling box 31. At the same time, since the filter screen 32 is located within the recycling box 31 and between the air inlet and outlet of the recycling box 31, the filter screen 32 can block the waste debris within the recycling box 31, thereby achieving the collection of waste debris.

[0064] It should be noted that the recycling bin 31 is used to draw waste from the excitation lead wire using negative pressure, and at the same time store the drawn waste. The specific type of recycling bin 31 can be set according to actual needs, and there are no restrictions on it.

[0065] The filter screen 32 is used for filtering waste. The specific type of filter screen 32 can be set according to actual needs and there are no restrictions on it.

[0066] The negative pressure device 33 is used to create negative pressure in the recycling bin 31. The specific type of the negative pressure device 33 can be set according to actual needs and is not limited thereto. For example, the negative pressure device 33 can be a fan or other equipment.

[0067] Both the recycling bin 31 and the negative pressure device 33 can be located in the external space of the engine.

[0068] like Figure 2 As shown, in some embodiments, the positive pressure spray assembly 4 includes a storage tank 41 and a delivery pump 42. The storage tank 41 is filled with cleaning agent. The inlet end of the delivery pump 42 is connected to the outlet end of the storage tank 41, and the outlet end of the delivery pump 42 is mounted on the traveling trolley 1 and located in the cleaning channel. The delivery pump 42 is used to pressurize and deliver the cleaning agent into the cleaning channel.

[0069] It is understandable that, since the inlet end of the transfer pump 42 is connected to the outlet end of the storage tank 41, and the outlet end of the transfer pump 42 is set on the traveling trolley 1 and located in the cleaning channel, the transfer pump 42 can pressurize and transfer the cleaning agent in the storage tank 41 into the cleaning channel, thereby using the cleaning agent to achieve high-efficiency and high-quality cleaning of the excitation lead wire.

[0070] It should be noted that the storage tank 41 is used to store cleaning agents. The specific type of storage tank 41 can be set according to actual needs and there are no restrictions on it. For example, the storage tank 41 is a tank structure and has a liquid replenishment system.

[0071] The delivery pump 42 is used to pressurize and deliver the cleaning agent. The specific type of delivery pump 42 can be set according to actual needs and there are no restrictions on it.

[0072] Both the storage tank 41 and the transfer pump 42 can be located in the external space of the engine.

[0073] In some embodiments, the cleaning device further includes a vision module, the camera end of which is mounted on the trolley 1 and faces the excitation lead, and the vision module is used to capture images of the excitation lead.

[0074] Understandably, since the camera of the vision module is set on the traveling trolley 1 and faces the excitation lead, the vision module can capture images of the excitation lead. This allows the camera to judge the cleaning effect on the excitation lead and thus facilitate timely adjustment of cleaning parameters, ensuring high cleaning quality and efficiency.

[0075] It should be noted that the vision module is used to capture images of the excitation leads. The specific type of vision module can be set according to actual needs and there are no restrictions on it. For example, the vision module includes a high-definition camera arranged on the traveling trolley 1 and devices such as processors and displays arranged in the external space.

[0076] In the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0077] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0079] Although embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A cleaning device for the excitation leads of a hydro-generator, characterized in that, include: A traveling trolley is used to travel along the length of the excitation lead on the inner wall of the rotor shaft of the hydro-generator, and a cleaning channel is formed between the traveling trolley and the inner wall of the rotor shaft, with the excitation lead located in the cleaning channel; Multiple brush assemblies are respectively disposed on the traveling trolley and located in the cleaning channel, and the brush assemblies abut against the excitation lead. A negative pressure recovery component, wherein the negative pressure end of the negative pressure recovery component is disposed on the traveling trolley and located within the cleaning channel, and the negative pressure recovery component is used to recover waste debris from the excitation lead under negative pressure; A positive pressure spray assembly, wherein the positive pressure end of the positive pressure spray assembly is disposed on the traveling trolley and located within the cleaning channel, and the positive pressure spray assembly is used to spray cleaning agent onto the excitation lead; The trolley includes a body, multiple wheels, a first drive mechanism, and a magnetic attraction assembly. The body is provided with a cleaning groove, and the cleaning groove and the inner wall of the rotor shaft are arranged opposite to each other to form the cleaning channel. The wheels are rotatably mounted on the body, and the multiple wheels are respectively located on both sides of the cleaning channel. The first drive mechanism is mounted on the body, and the power output end of the first drive mechanism is connected to the power input end of the wheel. The first drive mechanism is used to drive the wheel to rotate. The magnetic attraction assembly is located on the side of the body near the inner wall of the rotor shaft, and there is a preset attraction between the magnetic attraction assembly and the inner wall of the rotor shaft so that the wheel abuts against the inner wall of the rotor shaft. The brush assembly includes: a brush base, a flexible tube, and a second drive mechanism. The brush base is rotatably mounted on the traveling trolley and located within the cleaning channel. The flexible tube is detachably mounted on the brush base and abuts against the excitation lead. The second drive mechanism is mounted on the traveling trolley, and the power output end of the second drive mechanism is connected to the power input end of the brush base. The second drive mechanism is used to drive the brush base to rotate. The brush assembly further includes: a conveying channel, a rotary joint, and a reversing valve. The conveying channel passes through the brush holder along the rotation center axis and extends to the surface of the flexible tube. The stationary outer shell of the rotary joint is mounted on the traveling trolley, and the rotating inner core of the rotary joint is connected to the end of the conveying channel away from the surface of the flexible tube. The first end of the reversing valve is connected to the stationary outer shell of the rotary joint, and the second end of the reversing valve is connected to the negative pressure end of the negative pressure recovery assembly. The third end of the reversing valve is connected to the positive pressure end of the positive pressure spraying assembly. The first and second ends of the reversing valve are connected to allow the negative pressure recovery assembly to recover waste debris on the excitation lead through the conveying channel. Alternatively, the first and third ends of the reversing valve are connected to allow the positive pressure spraying assembly to spray cleaning agent onto the excitation lead through the conveying channel. The multiple brush assemblies are respectively located on the side of the excitation lead near the inner wall of the rotor shaft and on the side of the excitation lead near the traveling trolley, and the distance between the brush assembly located on the side of the excitation lead near the inner wall of the rotor shaft and the brush assembly located on the side of the excitation lead near the traveling trolley is less than the thickness of the excitation lead.

2. The cleaning device for the excitation leads of a hydro-generator according to claim 1, characterized in that, The magnetic attraction component includes: A permanent magnet is disposed on the side of the vehicle body near the inner wall of the rotor shaft, and there is a first attraction between the permanent magnet and the inner wall of the rotor shaft; An electromagnet is disposed on the side of the vehicle body near the inner wall of the rotor shaft, and a second attraction exists between the electromagnet and the inner wall of the rotor shaft. A current adjustment module is disposed at the power supply terminal of the electromagnet, and the current adjustment module is used to adjust the current at the power supply terminal of the electromagnet to control the magnitude of the second attraction force.

3. The cleaning device for the excitation leads of a hydro-generator according to claim 2, characterized in that, The mobile cart also includes: A backup battery is installed inside the vehicle body, and the power supply terminal of the backup battery is connected to the power supply terminal of the first drive mechanism and the power supply terminal of the electromagnet, respectively.

4. The cleaning device for the excitation leads of a hydro-generator according to claim 1, characterized in that, The negative pressure recovery component includes: A recycling bin, the air inlet of which is located on the traveling trolley and within the cleaning channel; A filter screen is disposed inside the recycling bin and is located between the air inlet and air outlet of the recycling bin. A negative pressure device is provided, wherein the air inlet of the negative pressure device is connected to the air outlet of the recycling box, and the negative pressure device is used to create negative pressure inside the recycling box.

5. The cleaning device for the excitation leads of a hydro-generator according to claim 1, characterized in that, The positive pressure spray assembly includes: A storage tank containing the cleaning agent; A delivery pump is provided, with its inlet end connected to the outlet end of the storage tank. The outlet end of the delivery pump is located on the traveling trolley and within the cleaning channel. The delivery pump is used to pressurize and deliver the cleaning agent into the cleaning channel.

6. The cleaning device for the excitation leads of a hydro-generator according to claim 1, characterized in that, The cleaning device also includes: A vision module, wherein the camera end of the vision module is mounted on the traveling trolley and faces the excitation lead, and the vision module is used to capture images of the excitation lead.

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