Gap cleaning device

Abstract

The utility model provides a gap cleaning device, and belongs to the technical field of cleaning equipment. The gap cleaning device comprises a mounting seat, a cleaning mechanism and a spray gun, the cleaning mechanism comprises a driving motor and a rolling brush, the driving motor and the rolling brush are both mounted on the mounting seat, and the output end of the driving motor is in transmission connection with the rolling brush; and the spray gun is mounted on the mounting seat and is used for spraying a solvent. The spray gun sprays the solvent into the gap of the rotor, the slender rolling brush extends into the gap, the driving motor drives the rolling brush to rotate, and the rotating rolling brush can clean the gap of the rotor. According to the gap cleaning device, the driving motor drives the rolling brush to rotate to automatically clean the rotor gap, manual cleaning is not needed, a scaffold does not need to be additionally built, cleaning of the rotor gap is greatly facilitated, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning equipment, and particularly relates to a gap cleaning device. Background Art

[0002] The generator rotor, the rotating part of the generator, rotates at high speed during normal operation, making it susceptible to contamination from oil and dust. The most common contamination is caused by grease escaping from the generator during high-speed rotation, mixing with airborne dust and forming sludge on the rotor surface and in its gaps. This sludge increases the thermal resistance of the main insulation, making it difficult for heat generated by copper conductor losses to be dissipated through the electrical insulation and the sludge layer, leading to overheating. It can also cause discharges, creating current paths that can affect the main insulation.

[0003] Currently, cleaning and painting the gaps in large hydro-turbine generator rotors is mostly done manually. This requires the construction of a scaffolding, where workers stand to spray cleaning agents and scrub the gaps with brushes. Manual cleaning is time-consuming and labor-intensive, with low efficiency and risks associated with cleaning on scaffolding. Utility Model Content

[0004] In view of this, in order to solve the problems in the prior art, the present invention proposes a gap cleaning device. The technical problem to be solved by the present invention is: how to conveniently clean the rotor gap and improve the cleaning efficiency.

[0005] The utility model solves the above problems through the following technical means:

[0006] A gap cleaning device, comprising:

[0007] Mounting seat;

[0008] A cleaning mechanism, comprising a driving motor and a roller brush, both of which are mounted on the mounting base, and an output end of the driving motor is transmission-connected to the roller brush;

[0009] A spray gun is installed on the mounting seat and is used for spraying solvent.

[0010] In the above-mentioned gap cleaning device, a portal frame is provided on the mounting seat, and the driving motor is installed on the portal frame.

[0011] In the above-mentioned gap cleaning device, a mounting plate is provided on the portal frame, and the driving motor is mounted on the mounting plate.

[0012] In the above-mentioned gap cleaning device, the cleaning mechanism also includes a transmission assembly, the transmission assembly includes a coupling and a rotating shaft, the coupling is installed on the mounting seat, one end of the rotating shaft is transmission-connected to the drive motor, the other end of the rotating shaft is transmission-connected to the coupling, and one end of the roller brush is transmission-connected to the coupling.

[0013] In the above-mentioned gap cleaning device, a first pulley is provided at the output end of the driving motor, a second pulley is provided at the end of the rotating shaft away from the coupling, and the first pulley and the second pulley are connected via a belt transmission.

[0014] In the above-mentioned gap cleaning device, the second pulley is located below the first pulley.

[0015] In the above-mentioned gap cleaning device, the spray gun is located on one side of the roller brush, and the spray gun and the roller brush are located on the same horizontal plane.

[0016] In the above-mentioned gap cleaning device, a cover is provided on the mounting seat.

[0017] Compared with the prior art, the advantages of the present invention are as follows:

[0018] The gap cleaning device drives the motor to drive the roller brush to rotate to automatically clean the rotor gap. There is no need for manual cleaning and no need to build an additional scaffolding, which greatly facilitates the cleaning of the rotor gap and improves the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the gap cleaning device;

[0020] Figure 2 This is a schematic diagram of the structure of the gap cleaning device after removing the cover;

[0021] Figure 3 This is a schematic structural diagram of the gap cleaning device from another perspective after the cover is removed.

[0022] In the figure, 1. mounting base; 2. cleaning mechanism; 3. driving motor; 4. roller brush; 5. spray gun; 6. gantry; 7. mounting plate; 8. coupling; 9. rotating shaft; 11. first pulley; 12. second pulley; 13. cover. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] The generator rotor is the rotating part of the generator. During normal operation, it rotates at high speeds and can be contaminated by oil or dust. The most common type of contamination is caused by grease escaping from the generator during high-speed rotation, mixing with airborne dust, and forming sludge on the rotor surface and in the gaps. Sludge on the rotor surface and in the gaps increases the thermal resistance of the main insulation, making it difficult for heat generated by copper conductor losses to be dissipated through the electrical insulation and the dirt layer, which can easily lead to overheating. It also causes discharge, forming current paths that affect the main insulation. Currently, cleaning and painting the gaps in large hydro-turbine generator rotors is mostly done manually. This requires erecting a scaffolding, where workers stand to spray cleaning agents and scrub the rotor gaps with brushes. Manual cleaning is time-consuming and labor-intensive, with low cleaning efficiency. Furthermore, cleaning on a scaffold carries certain risks. In view of this, the present invention provides a gap cleaning device to facilitate rotor gap cleaning and improve cleaning efficiency.

[0025] like Figure 1 and 2 As shown, the gap cleaning device includes: a mounting base 1, a cleaning mechanism 2 and a spray gun 5; the cleaning mechanism 2 includes a drive motor 3 and a roller brush 4, the drive motor 3 and the roller brush 4 are both installed on the mounting base 1, and the output end of the drive motor 3 is transmission-connected to the roller brush 4; the spray gun 5 is installed on the mounting base 1, and the spray gun 5 is used to spray the solvent.

[0026] When the gap cleaning device is in operation, a spray gun 5 sprays solvent into the gap of the rotor, inserts a slender roller brush 4 into the gap, and drives the motor 3 to rotate the roller brush 4, which then cleans the gap of the rotor. The gap cleaning device automatically cleans the rotor gap by driving the motor 3 to drive the roller brush 4, eliminating the need for manual cleaning and the need for additional scaffolding. This greatly facilitates cleaning of the rotor gap and improves cleaning efficiency.

[0027] like Figure 2 As shown, specifically, a portal frame 6 is provided on the mounting base 1, and the drive motor 3 is mounted on the portal frame 6. A mounting plate 7 is provided on the portal frame 6, and the drive motor 3 is mounted on the mounting plate 7. In this structure, by providing the portal frame 6 on the mounting base 1 and the mounting plate 7 on the portal frame 6, the installation of the drive motor 3 is facilitated.

[0028] like Figure 2As shown, in this embodiment, the cleaning mechanism 2 further includes a transmission assembly, which includes a coupling 8 and a rotating shaft 9. The coupling 8 is mounted on the mounting base 1. One end of the rotating shaft 9 is in transmission connection with the drive motor 3, and the other end of the rotating shaft 9 is in transmission connection with the coupling 8. One end of the roller brush 4 is in transmission connection with the coupling 8. In this structure, the motor drives the roller brush 4 through the coupling and the rotating shaft 9.

[0029] like Figure 2 and 3 As shown, in this embodiment, a first pulley 11 is provided at the output end of the drive motor, and a second pulley 12 is provided at the end of the rotating shaft 9 away from the coupling 8. The first pulley 11 and the second pulley 12 are connected by a belt drive. The second pulley 12 is located below the first pulley 11. In this structure, the belt is a flexible structure, which can effectively prevent the roller brush 4 from getting stuck during the cleaning process and damaging the drive motor 3.

[0030] like Figure 2 As shown, in this embodiment, the spray gun 5 is located on one side of the roller brush 4 and is on the same horizontal plane as the roller brush 4. In this structure, the spray gun 5 is located on one side of the roller brush 4 and is on the same horizontal plane as the roller brush 4, which facilitates the roller brush 4 to clean the rotor gap after the spray gun 5 sprays solvent into the gap.

[0031] like Figure 1 As shown, in this embodiment, a cover 13 is provided on the mounting base 1. In this structure, the cover 13 is provided on the mounting base 1 to prevent oil stains from being scattered onto the drive motor 3 and the spray gun 5 during cleaning, thereby preventing the drive motor 3 and the spray gun 5 from being damaged.

[0032] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A gap cleaning device, characterized in that: include: Mounting seat (1); A cleaning mechanism (2), the cleaning mechanism (2) comprising a drive motor (3) and a roller brush (4), the drive motor (3) and the roller brush (4) both being mounted on the mounting seat (1), the output end of the drive motor (3) being in transmission connection with the roller brush (4); A spray gun (5), the spray gun (5) is mounted on the mounting seat (1), and the spray gun (5) is used for spraying solvent.

2. A gap cleaning device according to claim 1, characterized in that: A door frame (6) is provided on the mounting seat (1), and the drive motor (3) is mounted on the door frame (6).

3. A gap cleaning device according to claim 2, characterized in that: A mounting plate (7) is provided on the portal frame (6), and the drive motor (3) is mounted on the mounting plate (7).

4. A gap cleaning device according to claim 1, characterized in that: The cleaning mechanism (2) further comprises a transmission assembly, the transmission assembly comprising a coupling (8) and a rotating shaft (9), the coupling (8) being mounted on the mounting seat (1), one end of the rotating shaft (9) being transmission-connected to the driving motor (3), the other end of the rotating shaft (9) being transmission-connected to the coupling (8), and one end of the rolling brush (4) being transmission-connected to the coupling (8).

5. A gap cleaning device according to claim 4, characterized in that: The output end of the driving motor (3) is provided with a first pulley (11), and the end of the rotating shaft (9) away from the coupling (8) is provided with a second pulley (12), and the first pulley (11) and the second pulley (12) are connected through a belt transmission.

6. A gap cleaning device according to claim 5, characterized in that: The second pulley (12) is located below the first pulley (11).

7. A gap cleaning device according to claim 1, characterized in that: The spray gun (5) is located on one side of the roller brush (4), and the spray gun (5) and the roller brush (4) are located on the same horizontal plane.

8. A gap cleaning device according to any one of claims 1 to 7, characterized in that: A sealing cover (13) is provided on the mounting seat (1).

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