Online cleaning and grinding device for slip ring of generator

Abstract

The invention relates to the technical field of generator slip ring cleaning, in particular to an online cleaning and grinding device for a generator slip ring, and aims to solve the problems of poor brush contact, overlarge current, slip ring firing and the like caused by surface carbon deposition of the generator slip ring. The device comprises a cleaning and grinding body, a connecting disc clamping block, a connecting disc and other parts, and a fresh air flow pipe and a negative pressure air flow device are arranged to keep the interior clean. Through real-time monitoring and intelligent management of the camera, the device can clean and grind the surface of the slip ring on line, the reliability of the device is improved, the service life is prolonged, and the operation efficiency is improved. In addition, the method is easy and convenient to operate, safe and reliable, the downtime is shortened, and technical guarantee is provided for long-term stable operation of the generator. The problems caused by carbon deposition can be effectively prevented, safe and efficient operation of a power system is ensured, the maintenance cost is reduced, and the overall performance of the generator is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of generator slip ring cleaning, in particular to an online cleaning and grinding device for generator slip ring. BACKGROUND

[0002] In large thermal power plants, the excitation system is an important part of the generator. The excitation system is the power supply and its auxiliary equipment for supplying the excitation current of the synchronous generator, mainly including excitation transformer, power rectifier unit, excitation regulator, excitation, de-excitation, protection, monitoring device and instrument, etc. The main task of the excitation system is to provide an adjustable DC current to the excitation winding of the generator to meet the needs of normal operation of the generator. The generator slip ring device, as an input unit of the excitation system, bears an important part of the excitation regulation of the generator, which transmits electric energy to the load. The service life of the excitation system is crucial to the normal operation of the generator.

[0003] The generator slip ring has the function of transmitting electric energy. The carbon brush ensures smooth transmission of current by contacting with the slip ring, which is a bridge for conducting electric energy between the rotor and the stator. The generator slip ring is a disc-shaped part made of conductive material, which is composed of an inner ring, an outer ring, a carbon brush, etc.

[0004] The carbon brush, also known as an electric brush, is a kind of sliding contact. The main application materials of carbon brush are graphite, impregnated graphite, and metal (containing copper and silver) graphite. The carbon brush is a device for transmitting energy or signals between fixed and rotating parts of an electric motor or generator or other rotating machinery. The carbon brush is generally made of pure carbon with a solidifying agent. The carbon brush is generally square in shape and is clamped on a metal bracket with a spring pressing the carbon brush against the rotating shaft. When the motor rotates, it delivers electric energy to the coil through the commutator. Since its main component is carbon, it is called a carbon brush, which is easily worn out. It should be regularly maintained and replaced, and the accumulated carbon should be cleaned.

[0005] With the formation of new power markets, large thermal power plant units are deeply peaking, daily start-stop, and frequent peaking and frequency modulation, which sharply increases the changes of large generator excitation systems, causing the carbon brush current to fluctuate greatly, which easily causes high current, accelerated wear of carbon brush, dust accumulation in slip ring, and other abnormal conditions. The failure of the slip ring system often causes the unit to reduce load, limit reactive load, slip ring burnout, and other serious accidents, which require shutdown for processing, long processing time, high unit start-stop cost, and other serious impacts on unit operation. It is urgently needed to clean the generator slip ring system online in time when abnormal conditions occur to meet the unit operation requirements and reduce unit losses. SUMMARY

[0006] This invention provides an online cleaning and grinding device for generator slip rings, which solves the problem that carbon deposits on the slip ring surface during generator use lead to poor brush contact, excessive current, and thus sparking of the slip ring.

[0007] This invention provides an online cleaning and grinding device for generator slip rings, comprising: a cleaning and grinding device body, a connecting plate block, and a connecting plate, wherein the connecting plate is installed on the top of the connecting plate block, and the cleaning and grinding device body is installed on the top of the connecting plate; The main body of the cleaning and grinding device includes a cleaning and grinding device base, a first cover plate, a cleaning and grinding device side wall, a second cover plate, and a cleaning and grinding device central beam. The cleaning and grinding device side wall is installed on the cleaning and grinding device base, and the cleaning and grinding device base is used to support the cleaning and grinding device side wall. A central beam for the cleaning and grinding device is installed in the middle of the side wall of the cleaning and grinding device. The central beam is used to provide support for the middle position of the side wall of the cleaning and grinding device. A first cover plate and a second cover plate are installed on the top of the side wall of the cleaning and grinding device. The inner wall of the cleaning and grinding device is equipped with a first plate, a second plate and a third plate from top to bottom. The first plate and the first cover plate and the second cover plate form a first grinding stone installation area. The first plate and the second plate form a first brush installation area. The second plate and the third plate form a second grinding stone installation area. The third plate and the base of the cleaning and grinding device form a second brush installation area. The first and second grinding stone mounting areas are used to mount grinding stones, and the first and second brush mounting areas are used to mount brushes. The base of the cleaning and grinding device is equipped with a fresh air flow duct diversion device and a negative pressure air flow convergence device. The fresh air flow duct diversion device is equipped with a fresh air connection hole, and the negative pressure air flow convergence device is equipped with a negative pressure air intake connection hole. A fresh air inlet is installed on the top side wall of the cleaning and grinding device. The fresh air inlet is connected to the fresh air flow distribution device through a connecting pipe inside the side wall of the cleaning and grinding device. A negative pressure air intake is installed on the bottom side wall of the cleaning and grinding device. The negative pressure air intake is connected to the negative pressure air flow convergence device through a connecting pipe inside the side wall of the cleaning and grinding device.

[0008] During generator operation, the slip ring, as a key rotating contact component, plays a crucial role in transmitting current. However, due to prolonged operation, environmental factors, and friction between the brushes and the slip ring, a layer of carbon black or other impurities gradually accumulates on the slip ring surface; this is known as carbon buildup.

[0009] Carbon buildup can negatively impact the normal operation of a generator. First, carbon buildup can cause uneven contact between the brushes and slip rings, or even localized isolation, leading to poor brush contact. Poor contact further obstructs current transmission, resulting in unstable current flow.

[0010] When the current is unstable, excessive current occurs. Excessive current not only accelerates the wear of the brushes and slip rings but also causes localized high temperatures and even electric arcs. This high temperature and arcing further accelerate the carbonization and damage to the slip ring surface, creating a vicious cycle.

[0011] More seriously, when the current is too high and the duration is too long, the high temperature and electric arc can cause the slip rings to spark. Slip ring sparks not only damage the generator itself, but also endanger the safe and stable operation of the entire power system.

[0012] Therefore, solving the problem of carbon buildup on the surface of generator slip rings is crucial. The generator slip ring online cleaning and grinding device of this invention is designed specifically to address this issue. It aims to ensure the smoothness of the slip ring surface by cleaning and grinding it online, thereby reducing problems such as poor brush contact, excessive current, and slip ring sparking, and ensuring the safe and efficient operation of the generator.

[0013] The beneficial effects of the online cleaning and grinding device for generator slip rings provided by this invention specifically include: Improved equipment reliability: Cleaning and grinding the slip rings effectively removes carbon deposits from their surface, reducing problems such as poor brush contact and excessive current, thereby significantly improving the generator's operational reliability and stability.

[0014] Improved operating efficiency: A clean slip ring surface ensures good contact between the brush and the slip ring, thereby reducing energy loss and improving the generator's operating efficiency.

[0015] Reduced downtime: Since the device can perform cleaning and grinding online, there is no need for long-term downtime for maintenance, which reduces production interruption time and improves equipment utilization.

[0016] Easy and safe to operate: The operation is carried out through the intelligent control system of the host computer, which is easy to operate and reduces the safety risks caused by direct manual operation.

[0017] Environmental protection: The device maintains internal air circulation through a fresh air flow duct diversion device and a negative pressure air flow convergence device, reducing the impact of dust and particles generated during the grinding process on the environment.

[0018] Real-time monitoring and intelligent management: Equipped with cameras and control devices, the cleaning and grinding process can be monitored and managed in real time, enabling timely detection and handling of problems, thus improving the timeliness and effectiveness of maintenance. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of an actual application scenario of the online cleaning and grinding device for motor slip rings provided by the present invention.

[0021] Figure 2 This is a schematic diagram of the main view structure of the online cleaning and grinding device for motor slip rings provided by the present invention.

[0022] Figure 3 This is a top view structural diagram of the online cleaning and grinding device for motor slip rings provided by the present invention.

[0023] Figure 4 This is a top view of the motor slip ring online cleaning and grinding device provided by the present invention, showing the structure after the first cover plate has been disassembled.

[0024] Figure 5 This is a top view cross-sectional structural diagram of the online cleaning and grinding device for motor slip rings provided by the present invention.

[0025] Figure 6 This is a side view cross-sectional structural diagram of the online cleaning and grinding device for motor slip rings provided by the present invention.

[0026] Figure 7 This is a side view structural diagram of the online cleaning and grinding device for motor slip rings provided by the present invention.

[0027] Figure 8 This is a schematic diagram of the structure of the online cleaning and grinding device for motor slip rings provided by the present invention after the grinding stone fixing device is installed.

[0028] Figure 9 This is a schematic diagram of the insulating buffer device in the online cleaning and grinding device for motor slip rings provided by the present invention.

[0029] Figure 10 This invention provides Figure 6 Schematic diagram of the structure at point a.

[0030] Figure 11 This invention provides Figure 7 Schematic diagram of the structure at point b.

[0031] Figure 12 This invention provides Figure 8 Schematic diagram of the structure at point c.

[0032] Figure 13 This invention provides Figure 8 Schematic diagram of the structure at point d.

[0033] Illustrations: 1. Cleaning the main body of the grinding device; 101. Cleaning the base of the grinding device; 102. First cover plate; 103. Cleaning the side wall of the grinding device; 104. Second cover plate; 105. Cleaning the central beam of the grinding device; 106. Cleaning the bottom slider of the grinding device; 107. First layer plate; 108. Second layer plate; 109. Third layer plate; 1010. Second area of ​​the layer plate; 1011. First area of ​​the layer plate. 2. Connecting disc retainer; 3. Connecting disc; 4. Generator slip ring; 5. Generator; 6. Grinding stone; 7. Track; 8. Grinding stone fixing device; 9. Traction device; 10. Insulated traction rope; 11. Insulated buffer device; 1101. Insulated buffer base; 1102. Insulated buffer contact head; 12. Brush, bristle brush; 13. Telescopic electric push rod; 14. Heating device; 15. Pressure relief spring; 16. Fresh air inlet; 17. Negative pressure air intake; 18. Camera; 19. Fresh air flow duct diversion device; 20. Fresh air connection hole; 21. Negative pressure air flow convergence device; 22. Negative pressure air intake connection hole; 23. Connecting disc cover plate; 24. Inner wall insulation layer. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention. The technical solutions provided by various embodiments of this invention will be described in detail below with reference to the accompanying drawings.

[0035] The generator slip ring online cleaning and grinding device provided by this invention has a sophisticated structure and comprehensive functions. It aims to solve the problem of carbon buildup on the surface of generator slip rings, thereby ensuring good brush contact and preventing excessive current and slip ring sparking. The specific technical solution of this invention is as follows: This invention provides an online cleaning and grinding device for generator slip rings, comprising: a cleaning and grinding device body 1, a connecting plate block 2, and a connecting plate 3, wherein the connecting plate 3 is installed on the top of the connecting plate block 2, and the cleaning and grinding device body 1 is installed on the top of the connecting plate 3; The present invention does not change the original generator equipment structure. The main body 1 of the cleaning and grinding device is connected to the connecting plate 3, and the connecting plate 3 is connected to the connecting plate clamping block 2. The connecting plate clamping block 2 is a component that matches the existing generator equipment structure. Since the structural improvement of the present invention is significant and no longer compatible with the existing generator mounting slot, the main body 1 of the cleaning and grinding device is installed on the generator by connecting the connecting plate 3 and the connecting plate clamping block 2.

[0036] The main body 1 of the cleaning and grinding device includes a cleaning and grinding device base 101, a first cover plate 102, a cleaning and grinding device side wall 103, a second cover plate 104, and a cleaning and grinding device middle beam 105. The cleaning and grinding device side wall 103 is installed on the cleaning and grinding device base 101, and the cleaning and grinding device base 101 is used to support the cleaning and grinding device side wall 103. A central beam 105 for the cleaning and grinding device is installed in the middle of the side wall 103 of the cleaning and grinding device. The central beam 105 is used to provide support for the middle position of the side wall 103 of the cleaning and grinding device. A first cover plate 102 and a second cover plate 104 are installed on the top of the side wall 103 of the cleaning and grinding device. The inner wall of the side wall 103 of the cleaning and grinding device is provided with a first layer plate 107, a second layer plate 108 and a third layer plate 109 installed from top to bottom. The first layer plate 107 forms a first grinding stone mounting area with the first cover plate 102 and the second cover plate 104. The first layer plate 107 forms a first brush mounting area with the second layer plate 108. The second layer plate 108 and the third layer plate 109 form a second grinding stone mounting area. The third layer plate 109 forms a second brush mounting area with the base 101 of the cleaning and grinding device. The first and second grinding stone mounting areas are used to mount grinding stones, and the first and second brush mounting areas are used to mount brushes. A fresh air flow duct diverter 19 and a negative pressure air flow combiner 21 are installed on the side wall of the base 101 of the cleaning and grinding device. A fresh air connection hole 20 is installed on the fresh air flow duct diverter 19, and a negative pressure air flow combiner 21 is installed on the negative pressure air intake connection hole 22. By introducing fresh air, debris on the slip ring is moved, and then negative pressure is used to suck away the debris and dust in the air. Fresh air can also be blown onto the slip ring to lower its temperature. When using negative pressure alone, there are situations where debris on the slip ring cannot be sucked up. Blowing fresh air makes the debris on the slip ring shake, which makes it easier for the negative pressure to absorb the debris.

[0037] A fresh air inlet 16 is installed on the top side wall of the side wall 103 of the cleaning and grinding device. The fresh air inlet 16 is connected to the fresh air flow diversion device 19 through the connecting pipe inside the side wall 103 of the cleaning and grinding device. A negative pressure air intake 17 is installed on the bottom side wall of the side wall 103 of the cleaning and grinding device. The negative pressure air intake 17 is connected to the negative pressure air flow converging device 21 through the connecting pipe inside the side wall 103 of the cleaning and grinding device.

[0038] Specifically, the present invention provides an online cleaning and grinding device for generator slip rings, further comprising: a bottom slider 106 of the cleaning and grinding device is screwed to the bottom of the base 101 of the cleaning and grinding device, the outer contour of the bottom slider 106 of the cleaning and grinding device matching the groove provided on the connecting plate. The bottom slider 106 of the cleaning and grinding device is inserted into the groove provided on the connecting plate, thereby connecting the main body 1 of the cleaning and grinding device to the connecting plate 3.

[0039] Specifically, the present invention provides an online cleaning and grinding device for generator slip rings, which further includes: a threaded hole for the outer wall of the connecting plate 3, the connecting plate 3 being screwed to the connecting plate cover plate 23 through the threaded hole, and the connecting plate cover plate 12 serving to lock the bottom slider 106 of the cleaning and grinding device.

[0040] Specifically, the present invention provides an online cleaning and grinding device for generator slip rings, which further includes: The fresh air flow duct diversion device 19 has a fresh air diversion duct installed inside, and the fresh air diversion duct is connected to the fresh air connection hole 20. The negative pressure airflow manifold device 21 is equipped with a negative pressure airflow manifold pipe, which is connected to the negative pressure airflow connection hole 22.

[0041] Specifically, the present invention provides an online cleaning and grinding device for generator slip rings, which further includes: The first and second grinding stone installation areas are provided with a first shelf area 1011 and a second shelf area 1010. Both the first shelf area 1011 and the second shelf area 1010 are equipped with rails 7. Grinding stone fixing devices 8 are installed on the rails 7, and grinding stones are installed on the grinding stone fixing devices 8. A traction device 9 is installed at the end of the rails 7. An insulated traction rope 10 is connected between the traction device 9 and the grinding stone fixing device 8. The traction device 9 drives the grinding stone fixing device 8 to move on the rails 7 through the insulated traction rope 10. A top locking block electric push rod is installed on the top of the grinding stone fixing device 8. The outer contour of the top locking block electric push rod matches the slot of the beam 105 of the cleaning and grinding device. The grinding stone fixing device 8 is fixed in the position of the rails 7 by inserting the top locking block electric push rod into the slot of the beam 105 of the cleaning and grinding device.

[0042] This step involves using the traction device 9 to move the grinding stone fixing device 8 to the position of the first cover plate (102) on the track 7 via the insulated traction rope 10 when the grinding stone 6 needs to be replaced. Then the first cover plate (102) can be opened to remove and replace the grinding stone 6. Since the first cover plate (102) is located at the rear of the device, the grinding stone 6 can be replaced without stopping the machine. During operation, the operator needs to wear insulated gloves.

[0043] Specifically, the present invention provides an online cleaning and grinding device for generator slip rings, which further includes: Telescopic electric actuators 13 are installed inside the first and second brush mounting areas. Brushes 12 are mounted on the telescopic electric actuators 13. Heating devices 14 are installed at the contact points between the first and second brush mounting areas and the side wall 103 of the cleaning and grinding device. The telescopic electric actuators 13 are used to move the brushes 12, which are used to clean the slip rings. In cold weather, the heating device 14 can be activated to heat the air, making the fresh air warm. When this warm air reaches the slip rings, the grease on the slip rings melts and is easily cleaned.

[0044] Specifically, the present invention provides an online cleaning and grinding device for generator slip rings, which further includes: An insulating buffer device 11 is provided on the second area 1010 of the shelf, which is used to relieve pressure on the grinding stone. The second cover plate 104 and the second layer plate 108 are equipped with pressure relief springs 15 on the opposite side of the grinding stone 6. The pressure relief springs 15 are used to provide appropriate pressure to the grinding stone 6 so that the grinding stone 6 can fit against the generator slip ring 4.

[0045] Specifically, the present invention provides an online cleaning and grinding device for generator slip rings. The insulating buffer device 11 includes an insulating buffer base 1101 and an insulating buffer contact head 1102. The insulating buffer contact head 1102 is installed on the top of the insulating buffer base 1101, and the top of the insulating buffer contact head 1102 contacts the grinding stone 6.

[0046] Specifically, the present invention provides an online cleaning and grinding device for generator slip rings, which further includes: an inner wall insulation layer 24 provided on the side wall 103 of the cleaning and grinding device and the inner wall of the base 101 of the cleaning and grinding device.

[0047] Specifically, the present invention provides an online cleaning and grinding device for generator slip rings, which further includes: a control device that establishes an electrical connection with a camera 18, a traction device 9, a telescopic electric push rod 13, and a heating device 14; the control device also establishes an electrical connection with a top-mounted block electric push rod installed on the top of the grinding stone fixing device 8; the control device transmits the image data collected by the camera 18 to a host computer, receives execution commands from the host computer, and transmits the execution commands from the host computer to the traction device 9, the telescopic electric push rod 13, the heating device 14, and the top-mounted block electric push rod installed on the top of the grinding stone fixing device 8.

[0048] The specific implementation of the present invention is as follows: The main body 1 of the cleaning and grinding device is installed on the slip ring of the generator through the connecting plate block 2 and the connecting plate 3, ensuring that the device is stable and aligned with the slip ring.

[0049] Install grinding stones and brushes in each installation area of ​​the main body 1 of the cleaning and grinding device, ensuring that they fit tightly against the surface of the slip ring.

[0050] Connect the fresh air flow duct diverter 5 and the negative pressure air flow combiner 6 to ensure air circulation inside the device so as to remove the dust and heat generated during the grinding process.

[0051] Establish electrical connections between the control device and the camera, traction device 10, telescopic electric push rod 15, and heating device 16, and conduct tests to ensure that each component is working properly.

[0052] The device is activated to monitor the surface condition of the slip ring in real time via a camera and transmit the image data to the host computer.

[0053] According to the instructions from the host computer, the control device activates the traction device 10, which moves the grinding stone fixing device on the track 9 via the insulated traction rope to grind the surface of the slip ring. At the same time, the pressure relief spring 18 provides appropriate pressure to the grinding stone to ensure the grinding effect.

[0054] During the grinding process, the fresh air duct diversion device 5 continuously supplies fresh air into the device, while the negative pressure airflow converging device 6 removes dust and heat, keeping the inside of the device clean. The fresh air is obtained through an external fresh air system, and the negative pressure suction is achieved through an external negative pressure system.

[0055] After grinding is complete, the control device activates the telescopic electric actuator 15, which drives the brush to clean the surface of the slip ring. Simultaneously, the heating device 16 activates to heat the brush, improving the cleaning effect. After cleaning, the device automatically resets, awaiting the next operating command.

[0056] Regularly check the wear of the grinding stones and brushes, and replace damaged parts promptly. Clean the dust and debris inside the device to keep it clean. Pay special attention to cleaning debris from the side wall 4 of the grinding device and from each layer (first layer 7, second layer 8, and third layer 17).

[0057] Check the working status of each electric component (such as traction device 10 and telescopic electric push rod 15) to ensure that the device is operating normally.

[0058] Depending on the usage, make necessary adjustments and optimizations to the device, such as adjusting the position or pressure of the grinding stone fixing device and the brush, to improve the cleaning and grinding effect.

[0059] Through the above implementation scheme, the generator slip ring online cleaning and grinding device of the present invention can effectively clean and grind the surface of the generator slip ring, solve the problem of carbon buildup, ensure good contact of the brushes, and avoid excessive current and slip ring sparking. At the same time, the device also has the advantages of simple operation, safety and reliability, and intelligent management. Intelligent monitoring and operation are achieved through a control device and camera, providing strong technical support for the long-term stable operation of the generator.

[0060] The embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. Additionally, to facilitate a clear description of the technical solutions of the embodiments of this application, the terms "first," "second," etc., are used in the embodiments of this application to distinguish identical or similar items with substantially the same function and effect. Those skilled in the art will understand that the terms "first," "second," etc., do not limit the quantity or execution order, and that "first," "second," etc., are not necessarily different. The embodiments of the present application described above do not constitute a limitation on the scope of protection of this application.

[0061] The above are merely specific application examples of the present invention and do not constitute any limitation on the scope of protection of the present invention. All technical solutions formed by equivalent transformations or equivalent substitutions of the present invention are within the scope of protection of the present invention.

Claims

1. An online cleaning and grinding device for generator slip rings, characterized in that, include: The main body (1) of the cleaning and grinding device, the connecting plate block (2) and the connecting plate (3) are installed on the top of the connecting plate block (2) and the main body (1) of the cleaning and grinding device is installed on the top of the connecting plate (3). The main body (1) of the cleaning and grinding device includes a cleaning and grinding device base (101), a first cover plate (102), a cleaning and grinding device side wall (103), a second cover plate (104), and a cleaning and grinding device middle beam (105). The cleaning and grinding device base (101) is equipped with the cleaning and grinding device side wall (103), and the cleaning and grinding device base (101) is used to support the cleaning and grinding device side wall (103). A central beam (105) of the cleaning and grinding device is installed in the middle of the side wall (103) of the cleaning and grinding device. The central beam (105) of the cleaning and grinding device is used to provide support for the middle position of the side wall (103) of the cleaning and grinding device. A first cover plate (102) and a second cover plate (104) are installed on the top of the side wall (103) of the cleaning and grinding device. The inner wall of the side wall (103) of the cleaning and grinding device is provided with a first layer plate (107), a second layer plate (108) and a third layer plate (109) installed from top to bottom. The first layer plate (107) forms a first grinding stone mounting area with the first cover plate (102) and the second cover plate (104). The first layer plate (107) forms a first brush mounting area with the second layer plate (108). The second layer plate (108) and the third layer plate (109) form a second grinding stone mounting area. The third layer plate (109) forms a second brush mounting area with the base (101) of the cleaning and grinding device. The first and second grinding stone mounting areas are used to mount grinding stones, and the first and second brush mounting areas are used to mount brushes. A fresh air flow duct diversion device (19) and a negative pressure air flow convergence device (21) are installed on the side wall of the base (101) of the cleaning and grinding device. A fresh air connection hole (20) is installed on the fresh air flow duct diversion device (19), and a negative pressure air flow convergence device (21) is installed on the negative pressure air intake connection hole (22). A fresh air inlet (16) is installed on the top side wall of the cleaning and grinding device (103). The fresh air inlet (16) is connected to the fresh air flow distribution device (19) through the connecting pipe inside the cleaning and grinding device (103). A negative pressure air intake (17) is installed on the bottom side wall of the cleaning and grinding device (103). The negative pressure air intake (17) is connected to the negative pressure air flow converging device (21) through the connecting pipe inside the cleaning and grinding device (103).

2. The generator slip ring online cleaning and grinding device according to claim 1, characterized in that, Also includes: The bottom of the cleaning and grinding device base (101) is screwed with a bottom slider (106) of the cleaning and grinding device, and the outer contour of the bottom slider (106) of the cleaning and grinding device matches the groove provided on the connecting plate.

3. The generator slip ring online cleaning and grinding device according to claim 2, characterized in that, Also includes: The outer wall of the connecting plate (3) is also provided with a connecting plate threaded hole. The connecting plate (3) is screwed to the connecting plate cover plate (23) through the connecting plate threaded hole. The connecting plate cover plate (12) is used to lock the bottom slider (106) of the cleaning and grinding device.

4. The generator slip ring online cleaning and grinding device according to claim 3, characterized in that, Also includes: The fresh air diversion pipe diversion device (19) has a fresh air diversion pipe installed inside, and the fresh air diversion pipe is connected to the fresh air connection hole (20); The negative pressure airflow manifold device (21) has a negative pressure airflow manifold pipe installed inside, and the negative pressure airflow manifold pipe is connected to the negative pressure airflow connection hole (22).

5. The generator slip ring online cleaning and grinding device according to claim 4, characterized in that, Also includes: The first grinding stone installation area and the second grinding stone installation area are provided with a first shelf area (1011) and a second shelf area (1010). Both the first shelf area (1011) and the second shelf area (1010) are equipped with rails (7). Grinding stone fixing devices (8) are installed on the rails (7). Grinding stones are installed on the grinding stone fixing devices (8). A traction device (9) is installed at the end of the rails (7). An insulated traction rope (10) is connected between the traction device (9) and the grinding stone fixing device (8). The traction device (9) drives the grinding stone fixing device (8) to move on the rails (7) through the insulated traction rope (10). A top clamping electric push rod is installed on the top of the grinding stone fixing device (8). The outer contour of the top clamping electric push rod matches the groove of the beam (105) of the cleaning and grinding device.

6. The generator slip ring online cleaning and grinding device according to claim 5, characterized in that, Also includes: Telescopic electric push rods (13) are installed inside the first brush mounting area and the second brush mounting area. Brushes (12) are installed on the telescopic electric push rods (13). Heating devices (14) are installed at the contact points between the first brush mounting area and the second brush mounting area and the side wall (103) of the cleaning and grinding device. The telescopic electric push rods (13) are used to drive the brushes (12) to move. The brushes (12) are used to clean the slip rings.

7. The generator slip ring online cleaning and grinding device according to claim 6, characterized in that, Also includes: An insulating buffer device (11) is provided on the second area (1010) of the shelf, which is used to relieve pressure on the grinding stone; The second cover plate (104) and the second layer plate (108) are equipped with a pressure relief spring (15) on the side opposite to the grinding stone (6). The pressure relief spring (15) is used to provide appropriate pressure to the grinding stone (6) so that the grinding stone (6) can fit against the generator slip ring (4).

8. The generator slip ring online cleaning and grinding device according to claim 7, characterized in that, The insulating buffer device (11) includes an insulating buffer base (1101) and an insulating buffer contact head (1102). The insulating buffer contact head (1102) is installed on the top of the insulating buffer base (1101), and the top of the insulating buffer contact head (1102) contacts the grinding stone (6).

9. The generator slip ring online cleaning and grinding device according to claim 1, characterized in that, Also includes: The inner wall insulation layer (24) is provided on the side wall (103) of the cleaning and grinding device and the inner wall of the base (101) of the cleaning and grinding device.

10. The generator slip ring online cleaning and grinding device according to claim 8, characterized in that, Also includes: The control device establishes an electrical connection with the camera (18), the traction device (9), the telescopic electric push rod (13), and the heating device (14). The control device also establishes an electrical connection with the top clamping block electric push rod installed on the top of the grinding stone fixing device (8). The control device transmits the image data collected by the camera (18) to the host computer and receives the execution command from the host computer. The execution command from the host computer is transmitted to the traction device (9), the telescopic electric push rod (13), the heating device (14), and the top clamping block electric push rod installed on the top of the grinding stone fixing device (8).

Images