Collecting ring structure used in hydro-generator

Abstract

The utility model belongs to the technical field of collector ring bodies, and discloses a collector ring structure used in a hydro-generator, which comprises a collector ring body, the inner surface of the collector ring body is fixedly sleeved with a rotating shaft, the outer surface of the rotating shaft is rotatably connected with a cleaning frame, and the cleaning frame is fixedly connected with a shell of the hydro-generator. A cleaning assembly is installed on the inner surface of the cleaning frame, the cleaning assembly comprises a plurality of cleaning rods, one end of the cleaning frame is provided with a penetrating type circular groove, and the outer surfaces of the cleaning rods are connected with the inner surface of the circular groove in a sliding and sleeved mode. The cleaning block is tightly attached to the outer surface of the collector ring body, impurities generated in the running process of the surface of the collector ring can be continuously and efficiently removed, the current transmission efficiency is improved, the position of the cleaning block can be adaptively adjusted, it is ensured that the cleaning block is stably attached to the surface of the collector ring all the time, and the stable and reliable cleaning effect is maintained.

Description

Technical Field

[0001] This utility model belongs to the field of slip ring body technology, specifically a slip ring structure used in a hydro generator. Background Technology

[0002] Hydroelectric generators, as an important type of hydropower equipment, occupy a key position in the energy sector. Their slip ring structure plays a crucial role in transmitting current during generator operation, ensuring stable and efficient operation.

[0003] Meanwhile, the patent specification with application number CN207410185U discloses a slip ring structure for a hydro-generator, "including an annular mounting base and an annular bracket mounted on the outer circular surface of the annular mounting base; slip rings are coaxially arranged on both sides of the annular bracket, and the two slip rings are mounted on the annular bracket by insulating screws; insulating pads are also provided on both sides of the annular bracket, and the insulating pads are located between the slip rings and the annular bracket; conductive screws are respectively provided on the two slip rings; dustproof rings are fixedly provided on both end faces of the annular mounting base, and the outer circumference of the dustproof rings abuts against the slip rings. This utility model can keep the surface of the annular mounting base clean at all times, prevent the two slip rings from forming a short circuit, improve the performance of the slip rings, and improve the normal operation of the hydro-generator."

[0004] During operation, existing hydro-generator slip ring structures are prone to accumulating large amounts of dust and carbon powder on their surface. Existing cleaning devices struggle to maintain the slip ring surface efficiently and continuously, leading to increased contact resistance between the slip ring and the brushes. This affects current transmission efficiency and consequently reduces the power generation performance of the hydro-generator. Furthermore, the heat generated by the conductive ring during operation cannot be dissipated effectively and promptly, causing the slip ring temperature to become excessively high. This accelerates the aging of components such as the conductive ring and insulating ring, shortening the service life of the slip ring structure.

[0005] Therefore, a slip ring structure for use in hydro-generators is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a slip ring structure for a hydro generator. This structure not only continuously and efficiently removes impurities generated on the slip ring surface during operation, improving current transmission efficiency, but also adaptively adjusts the position of the cleaning block to ensure stable contact with the slip ring surface, maintaining a stable and reliable cleaning effect. Furthermore, it can quickly dissipate the heat generated by the conductive ring, reducing the slip ring temperature, slowing down component aging, and extending the service life of the slip ring structure.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a slip ring structure for a hydro-generator, comprising a slip ring body, a rotating shaft fixedly sleeved on the inner surface of the slip ring body, a cleaning frame rotatably connected to the outer surface of the rotating shaft, the cleaning frame being fixedly connected to the hydro-generator housing, a cleaning component installed on the inner surface of the cleaning frame, the cleaning component comprising a plurality of cleaning rods, a through-hole circular groove opened at one end of the cleaning frame, the outer surfaces of the plurality of cleaning rods respectively slidingly sleeved with the inner surface of the circular groove, springs wound around the outer surfaces of the plurality of cleaning rods, a fixing ring fixedly connected to the outer surfaces of the plurality of cleaning rods, one end of the plurality of springs respectively fixedly connected to one end of the fixing ring, a connecting plate fixedly connected to one end of the plurality of cleaning rods, a cleaning block fixedly connected to one end of the plurality of connecting plates, and the cleaning blocks being made of sponge.

[0008] Preferably, each of the inner surfaces of the plurality of circular grooves is fixedly connected to two limiting blocks, and each of the outer surfaces of the plurality of cleaning rods is provided with a limiting groove that cooperates with the two limiting blocks.

[0009] Preferably, a limiting plate is fixedly connected to one end of each of the cleaning rods away from the collector ring body.

[0010] Preferably, the other ends of several of the springs are jointly fixedly connected to one side of the inner wall of the cleaning rack.

[0011] Preferably, the current collector ring body includes a plurality of conductive rings, an insulating ring is provided between two adjacent conductive rings, and heat dissipation fins are fixed on the outer surface of the plurality of conductive rings.

[0012] Preferably, each of the plurality of heat dissipation fins has two through-holes at one end, and the heat dissipation holes on two adjacent heat dissipation fins are arranged in an alternating pattern.

[0013] Preferably, several of the cleaning blocks are tightly fitted to two adjacent conductive rings.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. By setting up a cleaning component, the cleaning block is tightly attached to the outer surface of the collector ring body under the elastic force of the spring. This not only continuously and efficiently removes impurities generated on the surface of the collector ring during operation and improves current transmission efficiency, but also adaptively adjusts the position of the cleaning block to ensure that it is always stably attached to the surface of the collector ring and maintains a stable and reliable cleaning effect.

[0016] 2. This utility model increases the contact area with air and optimizes the airflow path by fixing heat dissipation fins on the outer surface of the conductive ring and opening staggered heat dissipation holes at one end of the heat dissipation fins. Under the action of natural convection, the heat generated by the conductive ring can be quickly dissipated, reducing the temperature of the collector ring, slowing down the aging of the components, and extending the service life of the collector ring structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the cleaning rack structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the cleaning component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the main structure of the collector ring of this utility model.

[0021] In the diagram: 1. Collector ring body; 11. Conductive ring; 12. Heat dissipation fins; 13. Heat dissipation holes; 14. Insulating ring;

[0022] 2. Shaft;

[0023] 3. Cleaning component; 31. Circular groove; 32. Limiting block; 33. Cleaning block; 34. Retaining ring; 35. Cleaning rod; 36. Spring; 37. Limiting groove; 38. Connecting plate;

[0024] 4. Cleaning rack; 5. Limiting plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 4 As shown, this utility model provides a slip ring structure for use in a hydro generator, including a slip ring body 1, a rotating shaft 2 fixedly sleeved on the inner surface of the slip ring body 1, a cleaning frame 4 rotatably connected to the outer surface of the rotating shaft 2, the cleaning frame 4 being fixedly connected to the outer shell of the hydro generator, and a cleaning component 3 installed on the inner surface of the cleaning frame 4.

[0027] The cleaning component 3 includes several cleaning rods 35. One end of the cleaning frame 4 has a through-hole circular groove 31. The outer surfaces of each cleaning rod 35 are slidably fitted onto the inner surface of the circular groove 31. Springs 36 are wound around the outer surfaces of each cleaning rod 35. Fixing rings 34 are fixedly connected to the outer surfaces of each cleaning rod 35. One end of each spring 36 is fixedly connected to one end of each fixing ring 34. A connecting plate 38 is fixedly connected to one end of each cleaning rod 35. A cleaning block 33 is fixedly connected to one end of each connecting plate 38. The cleaning blocks 33 are all made of sponge. The springs 36 ensure that the cleaning blocks 33 always remain in contact with the surface of the collector ring body 1. Furthermore, when the surface of the collector ring body 1 is uneven, the springs 36 can automatically adjust the position of the cleaning blocks 33 through extension and retraction to ensure cleaning effectiveness. Simultaneously, the sponge material of the cleaning blocks 33 effectively cleans the surface of the collector ring body 1 without scratching it.

[0028] Specifically, each of the inner surfaces of several circular grooves 31 is fixedly connected to two limiting blocks 32, and each of the outer surfaces of several cleaning rods 35 is provided with a limiting groove 37 that works in conjunction with the two limiting blocks 32. This restricts the sliding direction of the cleaning rods 35 within the circular grooves 31, prevents the cleaning rods 35 from rotating during operation, and ensures that the cleaning blocks 33 always clean the collector ring body 1 at the correct angle and position.

[0029] like Figures 1 to 4 As shown, a limit plate 5 is fixedly connected to one end of each cleaning rod 35 away from the collector ring body 1 to ensure the structural integrity of the cleaning assembly 3 and enable the cleaning assembly 3 to work continuously and stably.

[0030] Furthermore, the other ends of several springs 36 are fixedly connected to one side of the inner wall of the cleaning frame 4, which ensures that the springs 36 apply a stable elastic force to the cleaning rod 35 and maintain close contact between the cleaning block 33 and the surface of the collector ring body 1.

[0031] like Figures 1 to 4 As shown, the collector ring body 1 includes several conductive rings 11. An insulating ring 14 is provided between two adjacent conductive rings 11. Heat dissipation fins 12 are fixed on the outer surface of the several conductive rings 11. The heat dissipation fins 12 increase the heat dissipation area of ​​the conductive rings 11, which can dissipate the heat generated during the operation of the collector ring in a timely manner, thereby improving the working stability and service life of the collector ring.

[0032] It is worth noting that each of the heat dissipation fins 12 has two through-holes 13 at one end. The heat dissipation holes 13 on adjacent heat dissipation fins 12 are arranged in an alternating pattern. The heat dissipation holes 13 further enhance the heat dissipation effect of the heat dissipation fins 12, and air can form convection through the heat dissipation holes 13 to carry away more heat. The alternating arrangement of the heat dissipation holes 13 on adjacent heat dissipation fins 12 avoids heat dissipation blind spots caused by the alignment of the heat dissipation holes 13, making the heat dissipation more uniform.

[0033] like Figures 1 to 4 As shown, several cleaning blocks 33 are closely attached to two adjacent conductive rings 11, which can clean the two adjacent conductive rings 11 at the same time, improve cleaning efficiency, ensure the cleanliness of the surface of the conductive rings 11, and facilitate the stable transmission of current.

[0034] Working principle and process: When the hydro-generator is working, the slip ring body 1 rotates together with the shaft 2. Since the cleaning frame 4 is fixedly connected to the hydro-generator housing, the cleaning component 3 remains in a fixed position. Under the elastic force of the spring 36, the cleaning block 33 is tightly attached to the surface of the conductive ring 11 of the slip ring body 1. When the slip ring body 1 rotates, the cleaning block 33 wipes and cleans the surface of the conductive ring 11, removing dust, impurities, etc. The heat generated by the slip ring body 1 during operation is dissipated through the heat dissipation fins 12 and the heat dissipation holes 13 on the heat dissipation fins 12, maintaining the normal operating temperature of the slip ring body 1. The insulating ring 14 ensures the insulation between adjacent conductive rings 11, ensuring the stable and efficient operation of the slip ring structure.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A slip ring structure for use in a hydro-generator, comprising a slip ring body (1), characterized in that: The inner surface of the collector ring body (1) is fixedly sleeved with a rotating shaft (2), and the outer surface of the rotating shaft (2) is rotatably connected with a cleaning frame (4). The cleaning frame (4) is fixedly connected to the housing of the water turbine generator, and a cleaning component (3) is installed on the inner surface of the cleaning frame (4). The cleaning component (3) includes several cleaning rods (35). One end of the cleaning frame (4) is provided with a through-type circular groove (31). The outer surfaces of the several cleaning rods (35) are respectively slidably sleeved with the inner surface of the circular groove (31). The outer surfaces of the several cleaning rods (35) are wrapped with springs (36). The outer surfaces of the several cleaning rods (35) are fixedly connected with fixing rings (34). One end of the several springs (36) is fixedly connected to one end of the fixing rings (34). One end of the several cleaning rods (35) is fixedly connected with a connecting plate (38). One end of the several connecting plates (38) is fixedly connected with a cleaning block (33). The cleaning blocks (33) are all made of sponge.

2. The slip ring structure for a hydro-generator according to claim 1, characterized in that: Two limiting blocks (32) are fixedly connected to the inner surface of several circular grooves (31), and limiting grooves (37) that cooperate with the two limiting blocks (32) are opened on the outer surface of several cleaning rods (35).

3. The slip ring structure for a hydro-generator according to claim 1, characterized in that: Each of the cleaning rods (35) is fixedly connected to a limiting plate (5) at one end away from the collector ring body (1).

4. The slip ring structure for a hydro-generator according to claim 1, characterized in that: The other ends of several of the springs (36) are fixedly connected to one side of the inner wall of the cleaning rack (4).

5. The slip ring structure for a hydro-generator according to claim 1, characterized in that: The collector ring body (1) includes several conductive rings (11), and an insulating ring (14) is provided between two adjacent conductive rings (11). Heat dissipation fins (12) are fixed on the outer surface of the several conductive rings (11).

6. The slip ring structure for a hydro-generator according to claim 5, characterized in that: Each of the heat dissipation fins (12) has two through-holes (13) at one end, and the heat dissipation holes (13) on two adjacent heat dissipation fins (12) are arranged in an alternating manner.

7. The slip ring structure for a hydro-generator according to claim 5, characterized in that: Several of the cleaning blocks (33) are tightly fitted to two adjacent conductive rings (11).

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