Magnetic type dustproof protection device for collector ring carbon brush of large generator

Abstract

The utility model relates to the technical field of dustproof protection of a carbon brush at a collector ring of a generator, in particular to a magnetic suction type dustproof protection device for a collector ring carbon brush of a large-scale generator, which comprises an upper dustproof cover and a lower dustproof cover, and the inner diameter enclosed by the upper dustproof cover is smaller than that enclosed by the lower dustproof cover. A connecting part is arranged between the upper dustproof cover and the lower dustproof cover; the upper dustproof cover is provided with an upper magnetic attraction structure, and the upper dustproof cover is attracted and attached to the periphery of the rotating shaft fixing area. The lower dustproof cover is provided with a lower magnetic attraction structure, and the lower dustproof cover is attracted and attached to the peripheries of the collector ring and the carbon brush. The connecting part is used for covering the rotating shaft and the collector ring connecting area. According to the utility model, the rotating shaft part, the collector ring part and the carbon brush part of the generator are covered and protected, so that external dust and impurities are prevented from entering, and a clean environment inside the generator is 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 utility model relates to the dustproof technology field of the carbon brush of generator collecting ring, specifically relates to a large -scale generator collecting ring carbon brush magnetic dustproof device. BACKGROUND

[0002] In the power system, the large -scale generator slip ring room is arranged with the important equipment such as rotating shaft, collecting ring, conducting plate, carbon brush, magnetic pole lead, excitation cable, various sensors. Usually in the overhaul work, need to clean the collecting ring, carbon brush and other important equipment, ensure that the generator slip ring room equipment safe and stable operation. Collecting ring, carbon brush clean, often exist other team or other slip ring room polishing, painting and so on operation, due to the interior equipment of slip ring room is more, structure heteromorpha complex, usually use plastic film to protect, not only waste time, manpower, material resources, and protection is not comprehensive, easy to fall off, and the protection effect is poor. Usually will contaminate the collecting ring, carbon brush, when the paint powder is attached to the surface of collecting ring, carbon brush, causes the surface to be not clean, when the temperature of collecting ring, carbon brush reaches 80 DEG C or more during operation, possibly lead to the local temperature of collecting ring, carbon brush is too high, seriously influence the normal operation of large -scale generator unit.

[0003] It can be seen that the dustproof structure of the current collecting ring carbon brush still has room for improvement, and the dustproof effect of the dustproof structure should be optimized to facilitate operation, reduce environmental pollution, maintain the safe and stable operation of the collecting ring and the service life. Therefore, a more reasonable technical solution is needed to solve the technical problems in the prior art. UTILITY MODEL CONTENT

[0004] The utility model provides a large -scale generator collecting ring carbon brush magnetic dustproof device, solves the dustproof problem of the heavy pressure equipment such as the collecting ring and carbon brush of generator slip ring room in the above background art, solves the dustproof of the original mode using plastic film, and the problems such as waste time, manpower, material resources, protection is not comprehensive, easy to fall off, and the poor protection effect. It is used to improve work efficiency, enhance the protection of the collecting ring carbon brush of slip ring room, reduce the environmental pollution caused by the use of disposable plastic film, avoid the secondary pollution of the equipment after cleaning, and ensure the long -term safe and stable operation of large -scale generator.

[0005] In order to realize the above purpose, the protective device disclosed by the utility model can adopt the following technical scheme:

[0006] A magnetic dustproof protection device for the slip ring and carbon brush of a large generator includes an upper dust cover and a lower dust cover. The inner diameter of the upper dust cover is smaller than that of the lower dust cover, and a connecting part is provided between the upper and lower dust covers. The upper dust cover has an upper magnetic structure for adsorbing and attaching the upper dust cover to the outer periphery of the shaft fixing area of ​​the generator structure. The lower dust cover has a lower magnetic structure for adsorbing and attaching the lower dust cover to the outer periphery of the slip ring and carbon brush of the generator structure. The connecting part is used to cover the connection area between the shaft and the slip ring.

[0007] The aforementioned dustproof protection device, through the upper dust cover in conjunction with the shaft fixing part of the generator structure, can wrap the outside of the shaft to prevent external dust and impurities from entering the shaft gap; through the lower dust cover wrapping the area where the slip ring and brush are located, it prevents dust from entering the area, and at the same time, through the connecting part, it achieves the coverage of the area where the shaft and slip ring are located. The connecting part is horizontally set to close the area between the upper dust cover and the lower dust cover.

[0008] Furthermore, for ease of observation, the upper and lower dust covers need to be visible. Their structure is not uniquely limited; here, an optimization is proposed, and one feasible option is to use transparent protective fabric for both the upper and lower dust covers. With this solution, the internal structure and operation can be observed through the transparent protective fabric. In other solutions, observation windows can also be provided on the upper and lower dust covers.

[0009] Furthermore, the structure of the connecting part can adopt various schemes, and its structure is not limited to one. Here, we optimize and propose one feasible option: the connecting part includes a horizontally arranged connecting fabric. The inner edge of the connecting fabric is connected and fixed to the upper dust cover, and the outer edge of the connecting fabric is connected and fitted to the lower dust cover, with one fixed connection position and several magnetic connection positions. When the above scheme is adopted, the connecting part unfolds into a ring shape, and after unfolding, it becomes an arc shape. The inner edge of the arc shape is connected to the upper dust cover, and the outer edge of the arc shape is connected to at least one point of the lower dust cover. When enclosed, both the upper and lower dust covers form a cylindrical structure, and the connecting part forms a horizontal ring structure.

[0010] Furthermore, the connecting fabric provides horizontal dust protection and needs to ensure a certain level of protection to prevent hard objects from damaging the structure at the shaft and slip ring. Therefore, its structure is not limited to a single type. Here, we propose an optimization and one feasible option: several reinforcing plates are attached to the connecting fabric. When adopting the above solution, the reinforcing plates are made of insulating boards and are evenly spaced along the circumference of the connecting fabric.

[0011] Furthermore, the upper magnetic structure is used to assist in fixing the upper dust cover. Its structure is not limited to a single feature; here, an optimization is proposed, and one feasible option is suggested: the upper magnetic structure includes a magnetic bag connected to the upper dust cover, which is used to adhere to the generator structure. When using the above solution, the magnetic bag and the upper dust cover can be sewn together, connected by fasteners, or integrally formed.

[0012] Furthermore, the lower magnetic attachment is used to assist in fixing the lower dust cover. Its structure is not limited to a single feature; here, an optimization is proposed, and one feasible option is suggested: the lower magnetic structure includes a magnetic bag connected to the lower dust cover, which is used to adhere to the generator structure. When using the above solution, the magnetic bag and the lower dust cover can be sewn together, connected by fasteners, or integrally molded.

[0013] Furthermore, the magnetic bag, used to hold magnetic materials, can be configured in various ways, and its structure is not limited to a single design. Here, we propose one feasible option: the magnetic bags are continuously arranged to form elongated bag cavities, with several magnets spaced apart within each cavity. When the upper or lower dust cover surrounds and fits the generator structure, the bag cavity forms an annular cavity. With this design, several small pockets can be placed within the bag cavity to hold the magnets. In some other designs, the magnetic bag can be designed to be openable for easy access to the magnets.

[0014] Furthermore, in many other solutions, the magnetic bags can be set up in other ways, and their structure is not limited to one specific method. Here, we optimize and propose one feasible option: the magnetic bags are spaced apart, and each magnetic bag contains a magnet; when the upper or lower dust cover surrounds and fits the generator structure, the magnetic bags are evenly spaced circumferentially. In this solution, each magnetic bag contains one magnet.

[0015] Furthermore, to facilitate the integration of the dustproof and protective devices with the generator structure, an optimization is proposed, suggesting one feasible option: the upper dust cover, lower dust cover, and connecting portion all include a flat fabric surface, with corresponding connectors on both sides of the fabric surface. When the upper dust cover, lower dust cover, and connecting portion cover the generator structure, the connectors on both sides of the fabric surface engage and connect. When using the above solution, the connectors can be Velcro, clips, hooks, etc.

[0016] The above-mentioned dust protection device is disclosed. This utility model also discloses a dust protection method, as follows:

[0017] A method for dust protection of large generator slip ring carbon brush magnetic suction type, which adopts the dust protection device described above.

[0018] Compared with the prior art, some of the beneficial effects of the technical solution disclosed in this utility model include:

[0019] This invention utilizes a dustproof protection device to cover and protect the generator's shaft, slip ring, and carbon brush areas, reducing the entry of external dust and impurities and ensuring a clean internal environment for the generator. Furthermore, the dustproof protection device in this invention provides more comprehensive coverage and a closer fit with the generator, resulting in a more stable and reliable dustproof effect. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Fig. 1 This is a schematic diagram of the overall dust protection device.

[0022] Fig. 2 This is a schematic diagram of the unfolded structure of the dustproof and protective device.

[0023] Fig. 3 This is a schematic diagram of another structure for the dustproof and protective device, which includes a reinforcing plate.

[0024] In the above attached figures, the meanings of each label are as follows:

[0025] 1. Upper dust cover; 2. Connecting part; 3. Lower dust cover; 4. Magnetic bag; 5. Magnet; 6. Connector; 7. Reinforcing plate. Detailed Implementation

[0026] The following description, in conjunction with the accompanying drawings and specific embodiments, further illustrates this embodiment.

[0027] In view of the unsatisfactory dust prevention effect and the labor-intensive cleaning at existing generator locations, the following embodiments provide a dust protection device designed to overcome the deficiencies in the prior art.

[0028] Example 1

[0029] like Figs. 1-3As shown in the figure, this embodiment of a magnetic dustproof protection device for a large generator slip ring carbon brush includes 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 part 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 magnetic structure to adsorb and adhere the upper dust cover 1 to the outer periphery of the rotating shaft fixing area of ​​the generator structure. The lower dust cover 3 is provided with a lower magnetic structure to adsorb and adhere the lower dust cover 3 to the outer periphery of the slip ring and carbon brush of the generator structure. The connecting part 2 is used to cover the connection area between the rotating shaft and the slip ring.

[0030] The dustproof protection device disclosed in this embodiment can cover the outside of the shaft by using the upper dust cover 1 in conjunction with the shaft fixing part of the generator structure, thus preventing external dust and impurities from entering the shaft gap; the lower dust cover 3 covers the area where the slip ring and brush are located, preventing dust from entering the area; at the same time, the connecting part 2 covers the area where the shaft and slip ring are located. The connecting part 2 is horizontally set to close the area between the upper dust cover 1 and the lower dust cover 3.

[0031] For ease of observation, the upper dust cover 1 and the lower dust cover 3 need to be visible. Their structure is not uniquely limited; this embodiment optimizes the design and adopts one feasible option: the upper dust cover 1 and the lower dust cover 3 are made of transparent protective fabric. With this solution, the internal structure and operation can be observed through the transparent protective fabric. In other solutions, observation windows can also be provided on the upper dust cover 1 and the lower dust cover 3.

[0032] The structure of the connecting part 2 can adopt various schemes, and its structure is not limited to one. This embodiment optimizes and adopts one feasible option: the connecting part 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 fitted to the lower dust cover 3, with one fixed connection position and several magnetic connection positions. When the above scheme is adopted, the connecting part 2 unfolds into a ring shape, and after unfolding, it becomes an arc shape. The inner edge of the arc shape is connected to the upper dust cover 1, and the outer edge of the arc shape is connected to at least one point of the lower dust cover 3. When enclosed, both the upper dust cover 1 and the lower dust cover 3 form a cylindrical structure, and the connecting part 2 forms a horizontal ring structure.

[0033] The connecting fabric provides horizontal dust protection and needs to ensure a certain level of protection to prevent hard objects from damaging the structure at the shaft and slip ring. Therefore, its structure is not uniquely limited. This embodiment optimizes and adopts one feasible option: several reinforcing plates 7 are attached to the connecting fabric. When adopting the above solution, the reinforcing plates 7 are insulating plates, evenly spaced along the circumference of the connecting fabric.

[0034] Preferably, the insulating plate is made of rigid rubber and is bonded to the connecting cloth.

[0035] The upper magnetic structure is used to assist in fixing the upper dust cover 1. Its structure is not limited to a single type; this embodiment optimizes and adopts one feasible option: the upper magnetic structure includes a magnetic bag 4 connected to the upper dust cover 1, which is used to adhere to the generator structure. When using the above solution, the magnetic bag 4 and the upper dust cover 1 can be sewn together, connected by fasteners, or integrally formed.

[0036] The lower magnetic attachment is used to assist in fixing the lower dust cover 3. Its structure is not limited to a single feature; this embodiment optimizes the design and adopts one feasible option: the lower magnetic structure includes a magnetic bag 4 connected to the lower dust cover 3, which is used to adhere to the generator structure. When using the above solution, the magnetic bag 4 and the lower dust cover 3 can be sewn together, connected by fasteners, or integrally formed.

[0037] The magnetic bag 4 is used to hold magnetic materials and can be arranged in various ways. Its structure is not limited to a single one. This embodiment optimizes and adopts one feasible option: the magnetic bags 4 are continuously arranged to form an elongated bag cavity, and several magnets 5 are arranged at intervals inside the bag cavity; when the upper dust cover 1 or the lower dust cover 3 surrounds and fits the generator structure, the bag cavity forms an annular cavity. When the above scheme is adopted, several small card pockets can be set inside the bag cavity to hold the magnets 5 respectively. In some other schemes, the magnetic bag 4 can also be set as an openable structure to facilitate the removal and placement of the magnets 5.

[0038] In other solutions, the magnetic bags 4 can be arranged in other ways, and their structure is not limited to one specific method. This embodiment optimizes and adopts one feasible option: the magnetic bags 4 are arranged at intervals, and each magnetic bag 4 contains a magnet 5; when the upper dust cover 1 or the lower dust cover 3 surrounds and fits the generator structure, the magnetic bags 4 are evenly spaced around the circumference. When the above solution is adopted, each magnetic bag 4 contains a magnet 5.

[0039] To facilitate the integration of the dustproof and protective device with the generator structure, this embodiment is optimized by adopting one feasible option: the upper dust cover 1, the lower dust cover 3, and the connecting part 2 all include a flat fabric surface, with corresponding connectors 6 provided on both sides of the fabric surface. When the upper dust cover 1, the lower dust cover 3, and the connecting part 2 cover the generator structure, the connectors 6 on both sides of the fabric surface are connected. When using the above solution, the connectors 6 can be Velcro, buckles, hooks, etc.

[0040] Example 2

[0041] The above embodiment 1 discloses a dust protection device. This embodiment also discloses a dust protection method, as follows:

[0042] A method for dust protection of large generator slip ring carbon brush magnetic suction type, which adopts the dust protection device described above.

[0043] The above are the embodiments listed in this example. However, this example is not limited to the optional embodiments described above. Those skilled in the art can arbitrarily combine the above methods to obtain other various embodiments. Anyone can derive other various forms of embodiments under the guidance of this example. The above specific embodiments should not be construed as limiting the scope of protection of this example. The scope of protection of this example should be defined in the claims.

Claims

1. A magnetic dustproof and protective device for carbon brushes of large generator slip rings, characterized in that: It includes an upper dust cover (1) and a lower dust cover (3). The inner diameter of the upper dust cover (1) is smaller than that of the lower dust cover (3). A connecting part (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 magnetic structure to adsorb and attach the upper dust cover (1) to the outer periphery of the shaft fixing area of ​​the generator structure. The lower dust cover (3) is provided with a lower magnetic structure to adsorb and attach the lower dust cover (3) to the outer periphery of the slip ring and carbon brush of the generator structure. The connecting part (2) is used to cover the connection area between the shaft and the slip ring.

2. The large generator slip ring carbon brush magnetic dustproof protection device according to claim 1, characterized in that: The upper dust cover (1) and the lower dust cover (3) are made of transparent protective cloth.

3. The magnetic dustproof protection device for carbon brushes of large generator slip rings according to claim 1, characterized in that: The connecting part (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 cooperated with the lower dust cover (3) and is provided with one fixed connection position and several magnetic connection positions.

4. The magnetic dustproof protection device for carbon brushes of large generator slip rings according to claim 3, characterized in that: Several reinforcing plates (7) are attached to the connecting fabric.

5. The magnetic dustproof protection device for carbon brushes of large generator slip rings according to claim 1, characterized in that: The upper magnetic structure includes a magnetic bag (4) connected to the upper dust cover (1), which is used to adhere to the generator structure.

6. The magnetic dustproof protection device for carbon brushes of large generator slip rings according to claim 1, characterized in that: The lower magnetic structure includes a magnetic bag (4) connected to the lower dust cover (3), which is used to adhere to the generator structure.

7. The magnetic dustproof protection device for carbon brushes of large generator slip rings according to claim 5 or 6, characterized in that: The magnetic bags (4) are continuously arranged to form a long strip-shaped bag cavity, and several magnets (5) are arranged at intervals inside the bag cavity; when the upper dust cover (1) or the lower dust cover (3) surrounds and fits the generator structure, the bag cavity forms an annular cavity.

8. The magnetic dustproof protection device for carbon brushes of large generator slip rings according to claim 5 or 6, characterized in that: The magnetic bags (4) are spaced apart, and each magnetic bag (4) contains a magnet (5); when the upper dust cover (1) or the lower dust cover (3) surrounds and fits the generator structure, the magnetic bags (4) are evenly spaced around the circumference.

9. The magnetic dustproof protection device for carbon brushes of large generator slip rings according to claim 1, characterized in that: The upper dust cover (1), lower dust cover (3) and connecting part (2) all include a flat cloth surface, and corresponding connectors (6) are provided on both sides of the cloth surface. When the upper dust cover (1), lower dust cover (3) and connecting part (2) cover the generator structure, the connectors (6) on both sides of the cloth surface are connected together.

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