Oil filter for transformer production

Abstract

The utility model relates to oil filter machine technical field especially relates to a filter for transformer production, include: filter machine shell, top cap, detachable installation in the top of filter machine shell, and the top of top cap and the outside of filter machine shell are fixed communication respectively with oil inlet pipe and oil outlet pipe, the self -cleaning filter component including the pivot that rotates to install in the bottom of top cap, the top of top cap is fixed with the drive motor for driving pivot autogyration, the lower extreme of pivot is fixed with six prism, the surface sliding sleeve joint of six prism has the scraper. The utility model through the collaborative design of self -cleaning filter component and detachable type connecting component, both solved the problem that the traditional filter machine led to the filtration efficiency decline because of the impurity accumulation, and through the dismounting process of simplifying filter component promotion the convenience of equipment maintenance, effectively balanced the high efficiency of filter process and the operability of routine maintenance, provided more practical solution scheme for the purification treatment of insulating oil in transformer production.

Description

Technical Field

[0001] This utility model relates to the field of oil filter technology, and in particular to an oil filter for transformer production. Background Technology

[0002] In the transformer manufacturing process, insulating oil plays a crucial role. It not only provides insulation protection for the transformer windings and core but also effectively dissipates heat, ensuring stable equipment operation. The purity of the insulating oil directly affects its insulation performance and heat dissipation effect, thus impacting the transformer's service life and safety. If the insulating oil contains impurities, moisture, or other contaminants, its insulation strength will decrease, increasing the risk of equipment failure. Therefore, efficient filtration of the insulating oil is a critical step in the transformer manufacturing process.

[0003] Traditional oil filters often suffer from reduced filtration efficiency due to impurities accumulating on the filter media surface when filtering transformer oil. This necessitates frequent shutdowns for disassembly and cleaning, increasing operational steps and disrupting production continuity. Furthermore, some oil filters have fixed connections between the filter components and the machine body, requiring tools for multi-step disassembly when replacing or maintaining the filter media. This cumbersome and time-consuming process fails to meet the demands of modern production for convenient equipment maintenance.

[0004] To address these issues, this utility model aims to design an oil filter for transformer production that features a self-cleaning function and easily disassembled filter components, thereby improving filtration efficiency and ease of maintenance. Utility Model Content

[0005] The purpose of this utility model is to solve the problems in the background art by proposing an oil filter for transformer production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An oil filter for transformer manufacturing, comprising: Oil filter housing; The top cover is detachably installed on the top of the oil filter housing, and the top of the top cover and the outside of the oil filter housing are respectively fixedly connected to the oil inlet pipe and the oil outlet pipe. The self-cleaning filter assembly includes a rotating shaft rotatably mounted on the bottom of a top cover. A drive motor for driving the rotating shaft to rotate is fixed on the top of the top cover. A hexagonal strip is fixed at the lower end of the rotating shaft. A scraper is slidably sleeved on the surface of the hexagonal strip. A bowl-shaped filter plate is attached to the outer side of the scraper, and its inner and outer surfaces are respectively attached to the outer surface of the scraper and the inner surface of the filter housing. Detachable connection assembly for connecting a rotating shaft, scraper, and cup-shaped filter plate.

[0007] Preferably, the detachable connection assembly includes a connecting shaft fixed to the lower end of the hexagonal strip, which moves through the center of the bowl-shaped filter plate. The lower end of the connecting shaft is threaded with a limiting bolt, and the head diameter of the limiting bolt is larger than the diameter of the connecting shaft.

[0008] Preferably, a limiting groove is provided on the top of the oil filter housing, and the lower end of the limiting groove is closed. A limiting block is slidably connected in the limiting groove and is fixed to the outside of the bowl-shaped filter plate.

[0009] Preferably, an internally threaded ring is movably sleeved on the side of the top cover, and the internally threaded ring is threaded onto the outer side of the oil filter housing. A fixing ring is movably embedded on the inner side of the internally threaded ring, and the fixing ring is fixedly sleeved on the side of the top cover.

[0010] Preferably, the top of the oil filter housing is provided with multiple positioning grooves, and a positioning block is slidably inserted into the positioning groove and fixed to the bottom of the top cover.

[0011] Preferably, a rubber sealing ring is fixed to the bottom of the top cover, and its lower surface is either tightly fitted to or separated from the top of the oil filter housing.

[0012] Preferably, the outer side of the oil filter housing is provided with a viewing window, which is made of high-strength transparent acrylic sheet.

[0013] Preferably, the scraper has a hexagonal hole at its center, which is slidably connected to or separated from the hexagonal strip.

[0014] Compared with existing technologies, the advantages of the oil filter for transformer production provided by this utility model are as follows: 1. Self-cleaning function: The drive motor drives the rotating shaft, hexagonal bars and scraper to rotate. The scraper can scrape off the impurities attached to the inner surface of the cup-shaped filter plate in real time, avoiding the accumulation of impurities and clogging of the filter holes. This effectively maintains the continuous and efficient filtration state of the oil filter and ensures the stable filtration effect of the insulating oil.

[0015] 2. High ease of maintenance: The design of the detachable connection components makes it possible to remove the cup-shaped filter plate and scraper by simply unscrewing the limit bolts after removing the top cover when it is necessary to replace or clean them. This allows for quick disassembly of each component, greatly simplifies the maintenance operation process, reduces downtime for maintenance, and meets the needs of modern production for convenient equipment maintenance.

[0016] In summary, this utility model, through the synergistic design of a self-cleaning filter component and a detachable connection component, not only solves the problem of decreased filtration efficiency caused by impurity accumulation in traditional oil filters, but also improves the convenience of equipment maintenance by simplifying the disassembly and assembly process of the filter component. It effectively balances the high efficiency of the oil filtration process with the operability of daily maintenance, providing a more practical solution for the purification of insulating oil in transformer production.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of an oil filter for transformer production proposed in this utility model; Figure 2 This is a cross-sectional structural diagram of an oil filter for transformer production proposed in this utility model; Figure 3 This is a partial cross-sectional view of a self-cleaning filter assembly in an oil filter for transformer production according to the present invention. Figure 4 This is a partially exploded structural diagram of a detachable connecting component in an oil filter for transformer production according to the present invention. Figure 5 This is a partial exploded structural diagram of the outer shell and the bowl-shaped filter plate of an oil filter for transformer production proposed in this utility model; Figure 6 for Figure 2 A magnified schematic diagram of the structure of A in the middle.

[0019] In the diagram: 1. Oil filter housing, 2. Top cover, 3. Oil inlet pipe, 4. Oil outlet pipe, 5. Rotary shaft, 6. Drive motor, 7. Hexagonal strip, 8. Scraper, 9. Connecting shaft, 10. Bowl-shaped filter plate, 11. Limiting bolt, 12. Limiting groove, 13. Limiting block, 14. Internal threaded ring, 15. Fixing ring, 16. Positioning block, 17. Positioning groove, 18. Rubber sealing ring, 19. Viewing window. Detailed Implementation

[0020] 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.

[0021] Reference Figures 1 to 6 An oil filter for transformer manufacturing, comprising: The outer shell of the oil filter 1 is provided with a viewing window 19 on the outside. The window is made of high-strength transparent acrylic sheet. This material not only has good light transmittance, which makes it convenient for operators to observe the filtration status and impurity accumulation status inside the oil filter in real time, but also has high mechanical strength and corrosion resistance, which can withstand the pressure and chemical corrosion that may be generated during the oil filtration process, thus extending the service life of the equipment.

[0022] The top cover 2 is detachably installed on the top of the oil filter housing 1, and the top of the top cover 2 and the outer side of the oil filter housing 1 are respectively fixedly connected to the oil inlet pipe 3 and the oil outlet pipe 4; the side of the top cover 2 is movably fitted with an internal threaded ring 14, and the internal threaded ring 14 is threadedly fitted onto the outer side of the oil filter housing 1. The inner side of the internal threaded ring 14 is movably fitted with a fixing ring 15, and the fixing ring 15 is fixedly fitted onto the side of the top cover 2. The top of the oil filter housing 1 has multiple positioning grooves 17, and positioning blocks 16 are slidably inserted into the positioning grooves 17 and fixed to the top. At the bottom of cover 2, the internal threaded ring 14 engages with the oil filter housing 1, which can drive the fixing ring 15 and top cover 2 to move downward, so that the positioning block 16 is precisely embedded in the positioning groove 17. This achieves quick positioning and sealing connection between top cover 2 and oil filter housing 1, effectively preventing leakage during the oil filtration process. At the same time, this structural design facilitates the inspection and maintenance of the internal components of the oil filter. Top cover 2 can be easily removed by simply rotating the internal threaded ring 14 in the opposite direction. The operation is simple and convenient, greatly improving the flexibility of equipment use and maintenance efficiency.

[0023] The self-cleaning filter assembly includes a rotating shaft 5 rotatably mounted on the bottom of the top cover 2. A drive motor 6 for driving the rotating shaft 5 to rotate is fixed on the top of the top cover 2. A hexagonal strip 7 is fixed at the lower end of the rotating shaft 5. A scraper 8 is slidably sleeved on the surface of the hexagonal strip 7. A bowl-shaped filter plate 10 is attached to the outside of the scraper 8. Its inner and outer surfaces are respectively attached to the outer surface of the scraper 8 and the inner surface of the filter housing 1.

[0024] A detachable connecting assembly is used to connect the rotating shaft 5, scraper 8, and bowl-shaped filter plate 10. The detachable connecting assembly includes a connecting shaft 9 fixed to the lower end of the hexagonal strip 7, which moves through the center of the bowl-shaped filter plate 10. The lower end of the connecting shaft 9 is threaded with a limiting bolt 11, and the head diameter of the limiting bolt 11 is larger than the diameter of the connecting shaft 9. When the top cover 2 is removed and lifted, the connecting shaft 9 will move upward synchronously with the top cover 2, and the head of the limiting bolt 11 will also pull the bowl-shaped filter plate 10 to move out of the oil filter housing 1. At this time, by unscrewing the limiting bolt 11, the bowl-shaped filter plate 10 and the scraper 8 can be removed one by one from the connecting shaft 9 and the hexagonal strip 7 to achieve quick disassembly of each component of the self-cleaning filter assembly. This allows for individual cleaning or replacement of the disassembled scraper 8 and bowl-shaped filter plate 10, avoiding the problems of difficult disassembly and incomplete cleaning of filter elements in traditional oil filters, effectively ensuring the cleanliness of the filter elements, and thus maintaining the stable filtration performance of the oil filter.

[0025] Specifically, a limiting groove 12 is provided on the top of the oil filter housing 1, and the lower end of the limiting groove 12 is closed. A limiting block 13 is slidably connected in the limiting groove 12 and is fixed to the outside of the bowl-shaped filter plate 10. When the bowl-shaped filter plate 10 moves up or down with the top cover 2, the limiting block 13 will slide synchronously in the limiting groove 12. Through the sliding guidance of the limiting groove 12 on the limiting block 13, it can be ensured that the bowl-shaped filter plate 10 always maintains a stable posture during installation and disassembly. At the same time, it will also limit the rotation of the bowl-shaped filter plate 10, so as to avoid affecting the fitting accuracy with the scraper 8 and the oil filter housing 1 due to displacement.

[0026] Specifically, a rubber sealing ring 18 is fixed at the bottom of the top cover 2. Its lower surface is tightly fitted or separated from the top of the oil filter housing 1. When the internal threaded ring 14 drives the top cover 2 to move downward and the positioning block 16 is embedded in the positioning groove 17, the rubber sealing ring 18 will undergo elastic deformation due to the squeezing action between the top cover 2 and the oil filter housing 1, thereby filling the gap between the two and further enhancing the sealing performance of the connection between the top cover 2 and the oil filter housing 1. This prevents hydraulic oil from leaking from the connection during the filtration process, ensures that the oil filtration work is carried out efficiently in a closed environment, and improves the reliability and safety of the equipment operation.

[0027] Specifically, the scraper 8 has a hexagonal hole in the center, which is slidably connected to or separated from the hexagonal strip 7, making it convenient to disassemble the scraper 8. When the scraper 8 needs to be cleaned or replaced, it can be easily removed by simply sliding it along the axis of the hexagonal strip 7 without complicated tools or operating steps, further improving the convenience of equipment maintenance.

[0028] The working principle of this utility model is as follows: In use, the top cover 2 is first threadedly connected to the oil filter housing 1 via the internal threaded ring 14. During this process, the internal threaded ring 14 engages with the threads of the oil filter housing 1, causing the fixing ring 15 and the top cover 2 to move downwards, so that the positioning block 16 is precisely embedded in the positioning groove 17. At the same time, the rubber sealing ring 18 undergoes elastic deformation due to the compression between the top cover 2 and the oil filter housing 1, filling the gap between the two and further enhancing the sealing performance of the connection, ensuring that the oil filtration work is carried out efficiently in a closed environment. Next, the transformer oil to be filtered is injected through the oil inlet pipe 3. The oil enters the oil filter housing 1 through the top cover 2 and begins to be filtered. When the oil passes through the bowl-shaped filter plate 10, impurities are trapped on the inner surface of the bowl-shaped filter plate 10, and the filtered oil is discharged through the oil outlet pipe 4. During the entire filtration process, the operator can observe the filtration situation and the accumulation of impurities inside the oil filter housing 1 in real time through the viewing window 19. During the oil filtration process, the drive motor 6 drives the rotating shaft 5 to rotate the hexagonal strip 7 and scraper 8. The scraper 8 rotates in contact with the inner surface of the bowl-shaped filter plate 10, which can clean the impurities attached to the inner surface of the bowl-shaped filter plate 10 in real time, prevent the filter holes from being blocked, and thus improve the filtration efficiency.

[0029] When cleaning or replacing the filter components is required, simply rotate the internal threaded ring 14 in the reverse direction to easily remove the top cover 2. At this time, the connecting shaft 9 will move upward synchronously with the top cover 2, and the head of the limiting bolt 11 will also pull the bowl-shaped filter plate 10 to move out of the oil filter housing 1. Unscrew the limiting bolt 11, and the bowl-shaped filter plate 10 and scraper 8 can be removed in sequence for individual cleaning or replacement. During installation, simply reverse the above steps.

[0030] It should be noted that all electrical components appearing in this application are connected to an external main controller and 220V AC mains power. The main controller can be a processor, alarm module, or drive module, etc., to control conventional known devices. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as bolts, rivets, and welding, which are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. An oil filter for transformer manufacturing, characterized in that, include: Oil filter housing (1); The top cover (2) is detachably installed on the top of the oil filter housing (1), and the top of the top cover (2) and the outside of the oil filter housing (1) are respectively fixedly connected to the oil inlet pipe (3) and the oil outlet pipe (4). The self-cleaning filter assembly includes a rotating shaft (5) rotatably mounted on the bottom of the top cover (2). A drive motor (6) for driving the rotating shaft (5) to rotate is fixed on the top of the top cover (2). A hexagonal strip (7) is fixed at the lower end of the rotating shaft (5). A scraper (8) is slidably sleeved on the surface of the hexagonal strip (7). A bowl-shaped filter plate (10) is attached to the outside of the scraper (8). Its inner and outer surfaces are respectively attached to the outer surface of the scraper (8) and the inner surface of the filter housing (1). A detachable connection assembly for connecting a rotating shaft (5), a scraper (8), and a bowl-shaped filter plate (10).

2. The oil filter for transformer production according to claim 1, characterized in that, The detachable connection assembly includes a connecting shaft (9) fixed to the lower end of the hexagonal bar (7), which moves through the center of the bowl-shaped filter plate (10). The lower end of the connecting shaft (9) is threaded with a limiting bolt (11), and the head diameter of the limiting bolt (11) is larger than the diameter of the connecting shaft (9).

3. The oil filter for transformer production according to claim 1, characterized in that, The top of the filter housing (1) has a limiting groove (12), and the lower end of the limiting groove (12) is closed. A limiting block (13) is slidably connected inside the limiting groove (12), which is fixed to the outside of the bowl-shaped filter plate (10).

4. The oil filter for transformer production according to claim 1, characterized in that, The top cover (2) is movably fitted with an internal threaded ring (14), and the internal threaded ring (14) is threaded onto the outside of the oil filter housing (1). A fixing ring (15) is movably embedded on the inside of the internal threaded ring (14), and the fixing ring (15) is fixedly fitted onto the side of the top cover (2).

5. The oil filter for transformer production according to claim 1, characterized in that, The top of the oil filter housing (1) is provided with multiple positioning grooves (17), and a positioning block (16) is slidably inserted into the positioning groove (17), which is fixed to the bottom of the top cover (2).

6. The oil filter for transformer production according to claim 1, characterized in that, The bottom of the top cover (2) is fixed with a rubber sealing ring (18), and its lower surface is either tightly fitted to or separated from the top of the oil filter housing (1).

7. The oil filter for transformer production according to claim 1, characterized in that, The outer side of the oil filter housing (1) is provided with a viewing window (19), which is made of high-strength transparent acrylic sheet.

8. The oil filter for transformer production according to claim 1, characterized in that, The scraper (8) has a hexagonal hole in the center, which is slidably connected to or separated from the hexagonal strip (7).

Images