Generator slip ring chamber equipment zipper sucker type dustproof protection device and method

Abstract

The invention relates to the technical field of dustproof protection of internal equipment of a generator slip ring chamber, in particular to a zipper sucker type dustproof protection device and method for the equipment of the generator slip ring chamber, the device comprises an upper dustproof cover and a lower dustproof cover, and a connecting part is arranged between the upper dustproof cover and the lower dustproof cover; the upper dustproof cover is provided with an upper hanging hole and connected with a sucker piece, and the lower dustproof cover is provided with a lower hanging hole and connected with a sucker piece. The upper dustproof cover, the lower dustproof cover and the connecting part all comprise flat cloth covers, and corresponding insulating zippers are arranged on the two side edges of each cloth cover; and a plurality of anti-collision protection structures are arranged on the cloth surfaces of the upper dust cover and the lower dust cover. The rotating shaft part, the collecting ring part and the carbon brush part of the generator are covered and protected, external dust and impurities are prevented from entering the generator, and the clean environment in the generator is conveniently guaranteed; and meanwhile, the dustproof protection device is more complete in coverage and more tightly matched with the generator, and the dustproof effect is more stable and reliable.

Description

Technical Field

[0001] The invention relates to the technical field of dust protection for internal equipment of a generator slip ring chamber, and in particular to a zipper suction cup type dust protection device and method for equipment in a generator slip ring chamber. Background Art

[0002] In the power system, the slip ring room of a large generator is equipped with important equipment such as the large shaft air supply pipe, rotating shaft, collector ring, conductive plate, carbon brush, magnetic pole lead, excitation cable, various sensors, etc. Usually, during maintenance work, it is necessary to clean important equipment such as collector rings and carbon brushes to ensure the safe and stable operation of the equipment in the generator slip ring room. After the collector rings and carbon brushes are cleaned, there are often other teams or other slip ring rooms for grinding, painting and other operations. Due to the large number of equipment inside the slip ring room and the complex structure, plastic film is usually used for protection, which not only wastes time, manpower and material resources, but also has incomplete protection, is easy to fall off, and has poor protection effect. Collector rings and carbon brushes are usually contaminated. When paint powder adheres to the surface of collector rings and carbon brushes, the surface becomes unclean. When the temperature of collector rings and carbon brushes reaches above 80°C during operation, it may cause the local temperature of collector rings and carbon brushes to be too high, seriously affecting the normal operation of large generator sets.

[0003] It can be seen that the dustproof structure of the current collector ring carbon brush still has room for improvement. It should be optimized to improve the dustproof effect of the dustproof structure, facilitate operation, reduce environmental pollution, and maintain the safe and stable operation and service life of the collector ring. Therefore, it is necessary to propose a more reasonable technical solution to solve the technical problems existing in the existing technology. Summary of the invention

[0004] The present invention proposes a zipper suction cup dust protection device and method for generator slip ring room equipment, which solves the dust protection problem of heavy pressure equipment such as collector rings and carbon brushes in the generator slip ring room proposed in the above background technology, and solves the problems of using plastic film for dust protection in the original method, which wastes time, manpower and material resources, is not comprehensive, is easy to fall off, and has poor protection effect. It is used to improve work efficiency, enhance protection of carbon brushes of collector rings in slip ring room, reduce environmental pollution caused by using disposable plastic film, and avoid secondary pollution of equipment after cleaning, so as to ensure the long-term safe and stable operation of large generators.

[0005] In order to achieve the above-mentioned purpose, the protective device disclosed in the present invention can adopt the following technical solutions:

[0006] A zipper suction cup dust protection device for a generator slip ring chamber equipment comprises an upper dust cover and a lower dust cover, wherein the inner diameter of the upper dust cover is smaller than the inner diameter of the lower dust cover, and a connecting portion is provided between the upper dust cover and the lower dust cover; the upper dust cover is provided with an upper hanging hole and connected with a suction cup member, so as to absorb and fit the upper dust cover to the periphery of the rotating shaft fixing area of ​​the generator structure; the lower dust cover is provided with a lower hanging hole and connected with a suction cup member, so as to absorb and fit the lower dust cover to the periphery of the collector ring and the carbon brush of the generator structure; the connecting portion is used to cover the connecting area between the rotating shaft and the collector ring;

[0007] The upper dust cover, the lower dust cover and the connecting part all include a flat cloth surface, and corresponding insulating zippers are arranged on both side edges of the cloth surface. When the upper dust cover, the lower dust cover and the connecting part are covered on the generator structure, the insulating zippers on both sides of the cloth surface are matched and connected;

[0008] The cloth surfaces of the upper dust cover and the lower dust cover are both provided with a plurality of anti-collision protection structures.

[0009] The dust protection device disclosed above can wrap the outer side of the rotating shaft through the upper dust cover cooperating with the rotating shaft fixing part of the generator structure to prevent external dust and impurities from entering the rotating shaft gap; wrap the area where the collector ring and the brush are located through the lower dust cover to prevent dust from entering the area, and at the same time, the area where the rotating shaft and the collector ring are located is covered through the connecting part, which is horizontally arranged to close the area between the upper dust cover and the lower dust cover.

[0010] Furthermore, for the convenience of observation, the upper dust cover and the lower dust cover need to be visible, and their structures are not limited to a single one. Here, an optimization is made and one of the feasible options is proposed: the upper dust cover and the lower dust cover are made of transparent protective cloth. When the above solution is adopted, the internal structure and operation status can be observed through the transparent protective cloth. In some other solutions, an observation window structure can also be set on the upper dust cover and the lower dust cover.

[0011] Furthermore, a label bag is provided on the upper dust cover and / or the lower dust cover, and the label bag is used to place a label card.

[0012] Furthermore, the structure of the connecting part can adopt a variety of schemes, and its structure is not limited to a single one. Here, optimization is performed and one feasible option is proposed: the connecting part includes a horizontally arranged connecting cloth, the inner edge of the connecting cloth is connected and fixed to the upper dust cover, and the outer edge of the connecting cloth is connected and matched with the lower dust cover through an insulating zipper. When the above scheme is adopted, the connecting part is annular, and after unfolding, it is an arc-shaped. The inner edge of the arc is connected to the upper dust cover, and the outer edge of the arc is connected and matched with the lower dust cover through an insulating zipper. When enclosed, the upper dust cover and the lower dust cover both form a cylindrical structure, and the connecting part forms a horizontal annular structure.

[0013] Furthermore, the connecting cloth provides horizontal dust protection, and needs to ensure certain protection performance to prevent hard objects from damaging the structure of the shaft and the collector ring. Therefore, its structure is not limited to a single one. Here, it is optimized and one of the feasible options is proposed: a plurality of reinforcing plates are attached to the connecting cloth. When the above solution is adopted, the reinforcing plates are insulating plates, which are evenly spaced along the circumference of the connecting cloth.

[0014] Furthermore, the upper hanging hole structure is used to assist in fixing the upper dust cover so that the upper dust cover can be fixed relative to the generator structure. Its structure is not limited to a single one. Here, an optimization is made and one of the feasible options is proposed: the upper hanging hole includes an opening set on the upper dust cover, and an insulating hanging ring is connected and fixed at the opening. The insulating hanging ring is connected and fixed to the suction cup member through a connecting belt. The suction cup member is used to adsorb on the surface of the generator structure and tighten the upper dust cover. When the above solution is adopted, the connecting belt adopts an insulating belt.

[0015] Furthermore, an elastic edge band is arranged on the upper part of the upper dust cover, and the insulating hanging ring is arranged on the elastic edge band.

[0016] Furthermore, the lower hanging hole is used to assist in fixing the lower dust cover so that the lower dust cover can be fixed relative to the generator structure. The structure is not limited to a single one. Here, an optimization is made and one of the feasible options is proposed: the lower hanging hole includes an opening provided in the lower dust cover, an insulating hanging ring is connected and fixed at the opening, and the insulating hanging ring is connected and fixed to the suction cup member through a connecting belt, and the suction cup member is used to adsorb on the surface of the generator structure and tighten the upper dust cover. When the above solution is adopted, the connecting belt adopts an insulating belt.

[0017] Furthermore, an elastic edge band is arranged at the bottom of the lower dust cover, and the insulating hanging ring is arranged on the elastic edge band.

[0018] Furthermore, the upper hanging hole structure can be arranged in a variety of ways, and its arrangement structure is not limited to a single one. Here, an optimization is made and one feasible option is proposed: the upper hanging holes are arranged in a row at the top of the upper dust cover, and the lower hanging holes are arranged in a row at the bottom of the lower dust cover, and at least the front and rear holes in the arrangement are connected with suction cups. When the above scheme is adopted, the setting position of the suction cup can be adjusted according to the tightness of the upper dust cover and the lower dust cover to help tighten the upper dust cover and the lower dust cover.

[0019] Furthermore, the upper dust cover and / or the lower dust cover are provided with an elastic band, which is used to tighten the upper dust cover and the lower dust cover, thereby keeping the upper dust cover and the lower dust cover attached to the surface of the generator structure.

[0020] Furthermore, the anti-collision protection structure is used to form a certain gap between the surface of the generator and the cloth surface, which can cope with some collisions and protect the surface of the generator. The anti-collision protection structure can be constructed in various forms, and its structure is not limited to a single one. Here, it is optimized and one of the feasible options is proposed: the anti-collision protection structure includes anti-collision strips arranged on the inner side of the upper dust cover and the lower dust cover. The anti-collision strips are arranged at intervals on the circumference and extend longitudinally. When the upper dust cover and the lower dust cover cover the surface of the generator structure, the anti-collision strips are used to fit tightly against the generator structure and form a gap between the cloth surface of the upper dust cover and the lower dust cover and the generator structure. When the above scheme is adopted, the anti-collision strips can be rubber strips.

[0021] Furthermore, in some other schemes, the anti-collision protection structure can also adopt other schemes, and its structure is not limited to the only one. Here, optimization is performed and one feasible option is proposed: the anti-collision protection structure includes an anti-collision airbag arranged in the upper dust cover and the lower dust cover. When the upper dust cover and the lower dust cover cover the outer surface of the generator structure, the anti-collision airbag fits the outer surface of the generator structure, and the cloth surface of the upper dust cover and the lower dust cover forms a gap with the generator structure. When the above scheme is adopted, the anti-collision airbag includes an inner capsule body and an outer protective layer. The inner capsule body is filled with gas, and the outer protective layer fits the inner capsule body to form external protection.

[0022] The above content discloses a dust protection device, and the present invention also discloses a dust protection method as follows:

[0023] A zipper suction cup dust protection method for a generator slip ring chamber equipment adopts the dust protection device described above.

[0024] Compared with the prior art, some beneficial effects of the technical solution disclosed in the present invention include:

[0025] In the present invention, a dustproof protection device is used to cover and protect the shaft, collector ring and carbon brush parts of the generator, thereby reducing the entry of external dust and impurities, thereby ensuring a clean environment inside the generator; at the same time, the dustproof protection device in the present invention has a more complete coverage area, cooperates more closely with the generator, and has a more stable and reliable dustproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only represent some embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is an overall schematic diagram of the dust protection device.

[0028] Figure 2 Schematic diagram of the expanded structure of the dust protection device.

[0029] Figure 3 This is another structural schematic diagram of a dust protection device, in which a reinforcement plate is provided.

[0030] In the above drawings, the meanings of the symbols are as follows:

[0031] 1. Upper dust cover; 2. Connecting part; 3. Lower dust cover; 4. Elastic edge band; 5. Upper hanging hole; 6. Insulated zipper; 7. Reinforcement plate; 8. Lower hanging hole; 9. Connecting band; 10. Suction cup; 11. Anti-collision protection structure; 12. Elastic stretch band; 13. Label bag. DETAILED DESCRIPTION

[0032] The present embodiment is further explained below in conjunction with the accompanying drawings and specific embodiments.

[0033] In view of the fact that the dust prevention effect of the existing generator is not ideal and cleaning is labor-intensive, the following embodiments provide a dust protection device to overcome the defects in the prior art.

[0034] Example 1

[0035] like Figure 1 to Figure 3 As shown, the present embodiment is a magnetic dust protection device for a collector ring carbon brush of a large generator, comprising an upper dust cover 1 and a lower dust cover 3, wherein the inner diameter formed by the upper dust cover 1 is smaller than the inner diameter formed by the lower dust cover 3, and a connecting portion 2 is provided between the upper dust cover 1 and the lower dust cover 3; the upper dust cover 1 is provided with an upper hanging hole 5 and is connected with a suction cup member 10, for adsorbing and fitting the upper dust cover 1 to the periphery of the rotating shaft fixing area of ​​the generator structure; the lower dust cover 3 is provided with a lower hanging hole 8 and is connected with a suction cup member 10, for adsorbing and fitting the lower dust cover 3 to the collector ring and the periphery of the carbon brush of the generator structure; the connecting portion 2 is used to cover the connecting area between the rotating shaft and the collector ring;

[0036] The upper dust cover 1, the lower dust cover 3 and the connecting part 2 all include a flat cloth surface, and corresponding insulating zippers 6 are arranged on both side edges of the cloth surface. When the upper dust cover 1, the lower dust cover 3 and the connecting part 2 are covered on the generator structure, the insulating zippers 6 on both sides of the cloth surface are connected in cooperation;

[0037] The fabric surfaces of the upper dust cover 1 and the lower dust cover 3 are both provided with a plurality of anti-collision protection structures 11 .

[0038] The dust protection device disclosed in this embodiment can wrap the outer side of the shaft through the upper dust cover 1 cooperating with the shaft fixing part of the generator structure to prevent external dust and impurities from entering the shaft gap; wrap the area where the collector ring and the brush are located through the lower dust cover 3 to prevent dust from entering the area, and at the same time, the area where the shaft and the collector ring are located is covered through the connecting part 2, and the connecting part 2 is horizontally arranged to close the area between the upper dust cover 1 and the lower dust cover 3.

[0039] For the convenience of observation, the upper dust cover 1 and the lower dust cover 3 need to be visible, and their structures are not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the upper dust cover 1 and the lower dust cover 3 are made of transparent protective cloth. When the above solution is adopted, the internal structure and operation status can be observed through the transparent protective cloth. In some other solutions, an observation window structure can also be set on the upper dust cover 1 and the lower dust cover 3.

[0040] Furthermore, a label bag 13 is provided on the upper dust cover 1 and / or the lower dust cover 3, and the label bag 13 is used to place a label card. The structure of the connecting portion 2 can adopt a variety of schemes, and its structure is not limited to a single one. This embodiment is optimized and adopts one of the feasible options: the connecting portion 2 includes a horizontally arranged connecting cloth, the inner edge of the connecting cloth is connected and fixed to the upper dust cover 1, and the outer edge of the connecting cloth is connected and matched with the lower dust cover 3 through an insulating zipper 6. When the above scheme is adopted, the connecting portion 2 is annular and arc-shaped after being unfolded. The inner edge of the arc is connected to the upper dust cover 1, and the outer edge of the arc is connected and matched with the lower dust cover 3 through an insulating zipper 6. When enclosed, the upper dust cover 1 and the lower dust cover 3 both form a cylindrical structure, and the connecting portion 2 forms a horizontal annular structure.

[0041] The connecting cloth provides horizontal dust protection, and needs to ensure certain protection performance to prevent hard objects from damaging the structure of the shaft and the collector ring. Therefore, its structure is not limited to a single one. This embodiment optimizes and adopts one of the feasible options: a plurality of reinforcing plates 7 are attached to the connecting cloth. When the above solution is adopted, the reinforcing plates 7 are insulating plates, which are evenly spaced along the circumference of the connecting cloth.

[0042] Preferably, the insulating plate is made of a hard rubber plate and is bonded to the connecting cloth.

[0043] The upper hanging hole 5 structure is used to assist in fixing the upper dust cover 1 so that the upper dust cover 1 can be fixed relatively to the generator structure. Its structure is not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the upper hanging hole 5 includes an opening set on the upper dust cover 1, and an insulating hanging ring is connected and fixed at the opening. The insulating hanging ring is connected and fixed to the suction cup member 10 through a connecting belt 9. The suction cup member 10 is used to adsorb on the surface of the generator structure and tighten the upper dust cover 1. When the above solution is adopted, the connecting belt 9 adopts an insulating belt.

[0044] Preferably, in this embodiment, an elastic edge band 4 is provided on the upper portion of the upper dust cover 1 , and the insulating hanging ring is provided on the elastic edge band 4 .

[0045] The lower hanging hole 8 is used to assist in fixing the lower dust cover 3 so that the lower dust cover 3 can be fixed relatively to the generator structure. Its structure is not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the lower hanging hole 8 includes an opening set in the lower dust cover 3, and an insulating hanging ring is connected and fixed at the opening. The insulating hanging ring is connected and fixed to the suction cup member 10 through a connecting belt 9. The suction cup member 10 is used to adsorb on the surface of the generator structure and tighten the upper dust cover 1. When the above solution is adopted, the connecting belt 9 adopts an insulating belt.

[0046] Preferably, an elastic edge band 4 is provided at the bottom of the lower dust cover 3 , and the insulating hanging ring is provided on the elastic edge band 4 .

[0047] The upper hanging holes 5 can be arranged in a variety of ways, and the arrangement structure is not limited to a single one. This embodiment optimizes and adopts one of the feasible options: the upper hanging holes 5 are arranged in a row at the top of the upper dust cover 1, and the lower hanging holes 8 are arranged in a row at the bottom of the lower dust cover 3, and at least the front and rear holes in the arrangement are connected with the suction cup 10. When the above scheme is adopted, the setting position of the suction cup 10 can be adjusted according to the tightness of the upper dust cover 1 and the lower dust cover 3 to help tighten the upper dust cover 1 and the lower dust cover 3.

[0048] Preferably, an elastic stretch band 12 is provided on the upper dust cover 1 and / or the lower dust cover 3 described in this embodiment, and the elastic stretch band 12 is used to tighten the upper dust cover 1 and the lower dust cover 3, so as to keep the upper dust cover 1 and the lower dust cover 3 attached to the surface of the generator structure.

[0049] The anti-collision protection structure 11 is used to form a certain gap between the surface of the generator and the cloth surface, which can cope with some collisions and protect the surface of the generator. The anti-collision protection structure 11 can be constructed in various forms, and its structure is not limited to a single one. This embodiment is optimized and adopts one of the feasible options: the anti-collision protection structure 11 includes anti-collision strips arranged on the inner side of the upper dust cover 1 and the lower dust cover 3. The anti-collision strips are arranged at intervals on the circumference and extend longitudinally. When the upper dust cover 1 and the lower dust cover 3 cover the surface of the generator structure, the anti-collision strips are used to fit tightly against the generator structure and form a gap between the cloth surface of the upper dust cover 1 and the lower dust cover 3 and the generator structure. When the above scheme is adopted, the anti-collision strips can be rubber strips.

[0050] In some other embodiments, the anti-collision protection structure 11 may also adopt other solutions, and its structure is not limited to the only one: the anti-collision protection structure 11 includes an anti-collision airbag arranged in the upper dust cover 1 and the lower dust cover 3. When the upper dust cover 1 and the lower dust cover 3 cover the outer surface of the generator structure, the anti-collision airbag fits the outer surface of the generator structure, and the cloth surface of the upper dust cover 1 and the lower dust cover 3 forms a gap with the generator structure. When the above solution is adopted, the anti-collision airbag includes an inner capsule body and an outer protective layer. The inner capsule body is filled with gas, and the outer protective layer fits the inner capsule body to form external protection.

[0051] Example 2

[0052] The content of the above embodiment 1 discloses a dust protection device, and this embodiment also discloses a dust protection method, as follows:

[0053] A zipper suction cup dust protection method for a generator slip ring chamber equipment adopts the dust protection device described above.

[0054] The above are the implementation methods listed in this embodiment, but this embodiment is not limited to the above optional implementation methods. Those skilled in the art can arbitrarily combine the above methods to obtain other various implementation methods. Anyone can derive other various implementation methods under the inspiration of this embodiment. The above specific implementation methods should not be understood as limiting the protection scope of this embodiment. The protection scope of this embodiment should be based on the definition in the claims.

Claims

1. A zipper suction cup dust protection device for a generator slip ring chamber, characterized in that: The invention comprises an upper dust cover (1) and a lower dust cover (3); the inner diameter of the upper dust cover (1) is smaller than the inner diameter of the lower dust cover (3); a connecting portion (2) is arranged between the upper dust cover (1) and the lower dust cover (3); the upper dust cover (1) is provided with an upper hanging hole (5) and is connected to a suction cup (10) for adsorbing and fitting the upper dust cover (1) to the periphery of the rotating shaft fixing area of ​​the generator structure; the lower dust cover (3) is provided with a lower hanging hole (8) and is connected to a suction cup (10) for adsorbing and fitting the lower dust cover (3) to the periphery of the collector ring and the carbon brush of the generator structure; the connecting portion (2) is used to cover the connecting area between the rotating shaft and the collector ring; The upper dust cover (1), the lower dust cover (3) and the connecting part (2) all include a flat cloth surface, and corresponding insulating zippers (6) are arranged on both side edges of the cloth surface. When the upper dust cover (1), the lower dust cover (3) and the connecting part (2) are covered on the generator structure, the insulating zippers (6) on both sides of the cloth surface are matched and connected; The fabric surfaces of the upper dust cover (1) and the lower dust cover (3) are both provided with a plurality of anti-collision protection structures (11).

2. The zipper suction cup dust protection device for the generator slip ring chamber equipment according to claim 1 is characterized in that: The upper dust cover (1) and the lower dust cover (3) are made of transparent protective cloth.

3. The zipper suction cup dust protection device for the generator slip ring chamber equipment according to claim 1 is characterized in that: The connecting portion (2) comprises a horizontally arranged connecting cloth, the inner edge of the connecting cloth is connected and fixed to the upper dust cover (1), and the outer edge of the connecting cloth is connected and matched to the lower dust cover (3) via an insulating zipper (6).

4. The zipper suction cup dust protection device for the generator slip ring chamber equipment according to claim 3 is characterized in that: A plurality of reinforcing plates (7) are fitted on the connecting cloth.

5. The zipper suction cup dust protection device for the generator slip ring chamber equipment according to claim 1 is characterized in that: The upper hanging hole (5) comprises an opening arranged on the upper dust cover (1), an insulating hanging ring is connected and fixed at the opening, and the insulating hanging ring is connected and fixed to a suction cup member (10) via a connecting belt (9), and the suction cup member (10) is used to be adsorbed on the surface of the generator structure and tighten the upper dust cover (1).

6. The zipper suction cup dust protection device for the generator slip ring chamber equipment according to claim 1 is characterized in that: The lower hanging hole (8) comprises an opening arranged on the lower dust cover (3), an insulating hanging ring is connected and fixed at the opening, and the insulating hanging ring is connected and fixed to a suction cup member (10) via a connecting belt (9), and the suction cup member (10) is used to be adsorbed on the surface of the generator structure and tighten the upper dust cover (1).

7. The zipper suction cup dust protection device for the generator slip ring chamber equipment according to claim 5 or 6, characterized in that: The upper hanging holes (5) are arranged in a row at the top of the upper dust cover (1), and the lower hanging holes (8) are arranged in a row at the bottom of the lower dust cover (3), and at least the front and rear holes in the arrangement are connected to suction cups (10).

8. The zipper suction cup dust protection device for the generator slip ring chamber equipment according to claim 5 or 6, characterized in that: The anti-collision protection structure (11) comprises anti-collision strips arranged on the inner side surfaces of the upper dust cover (1) and the lower dust cover (3), wherein the anti-collision strips are arranged at intervals on the circumference and extend in the longitudinal direction. When the upper dust cover (1) and the lower dust cover (3) cover the surface of the generator structure, the anti-collision strips are used to fit tightly against the generator structure and form a gap between the fabric surfaces of the upper dust cover (1) and the lower dust cover (3) and the generator structure.

9. The zipper suction cup dust protection device for the generator slip ring chamber equipment according to claim 1 is characterized in that: The anti-collision protection structure (11) comprises an anti-collision airbag arranged in an upper dust cover (1) and a lower dust cover (3); when the upper dust cover (1) and the lower dust cover (3) cover the outer surface of the generator structure, the anti-collision airbag fits the outer surface of the generator structure and forms a gap between the cloth surface of the upper dust cover (1) and the lower dust cover (3) and the generator structure.

10. A zipper suction cup dust protection method for a generator slip ring chamber, characterized in that: A dust protection device according to any one of claims 1 to 9 is used.

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