Quick-change type electro-hydraulic servo valve oil filter seat structure

Abstract

The application relates to the technical field of electro-hydraulic servo valve oil filter seats, in particular to a quick-change type electro-hydraulic servo valve oil filter seat structure which comprises a main body, a top cover is fixedly installed at the top of the main body, an input pipe is fixedly connected to the top of the top cover, a fixing frame is fixedly connected to the inner wall of the main body, and a filter barrel is arranged in the main body. The utility model is provided with a threaded rod, a moving plate one and a brush plate, after the top cover is opened, the staff can lift the filter barrel upwards, the moving plate one is in threaded connection with the threaded rod, the threaded rod can rotate freely, when the filter barrel is lifted upwards, the moving plate one drives the threaded rod to rotate, the rotation of the threaded rod can clean the outer wall of the filter barrel and the inner wall of the main body at the same time, the device can clean the outer wall of the filter barrel and the inner wall of the main body during dismounting, the time required by the staff for cleaning the outer wall of the filter barrel and the inner wall of the main body is reduced, and the work load of the staff is reduced.

Description

Technical Field

[0001] This application relates to the technical field of oil filter seats for electro-hydraulic servo valves, and in particular to a quick-change oil filter seat structure for electro-hydraulic servo valves. Background Technology

[0002] Currently, the oil filter holder of the electro-hydraulic servo valve is a key component used to install and fix the oil filter (oil filter) in the electro-hydraulic servo system. Its main function is to filter the oil entering the servo valve, ensure the cleanliness of the oil, and prevent contaminants (such as metal particles, impurities, colloids, etc.) from clogging the precision valve port of the servo valve or wearing the valve core, thereby ensuring the control accuracy and service life of the servo valve.

[0003] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: In the prior art, under prolonged use, some particles and other impurities inevitably adhere to the inner wall of the device and the outer wall of the filter barrel. This requires staff to disassemble the filter barrel and the inner wall of the device before cleaning, which not only increases the workload of the staff but also requires them to spend a lot of time cleaning it. Utility Model Content

[0004] In order to enable the cleaning of the inner wall of the device during disassembly, this application provides a quick-change electro-hydraulic servo valve oil filter seat structure.

[0005] This application provides a quick-change electro-hydraulic servo valve oil filter seat structure, which adopts the following technical solution: it includes a main body, a top cover is fixedly installed on the top of the main body, an input pipe is fixedly connected to the top of the top cover, a fixing frame is fixedly connected to the inner wall of the main body, a filter barrel is provided inside the main body, a filter screen is fixedly connected to the inner wall of the filter barrel, a limit post is fixedly connected to the side of the inner wall of the main body away from the fixing frame, and an output pipe is fixedly connected to the bottom of the main body; A movable plate is provided below the filter barrel. A threaded hole is opened at the bottom of the movable plate. A threaded rod is threadedly connected to the inner wall of the threaded hole. A brush plate is in contact with the inner wall of the main body.

[0006] Optionally, a rotating plate is rotatably connected to the top of the fixed frame via a pin. The center of the top of the rotating plate is fixedly connected to the bottom of the threaded rod, and the side of the top of the rotating plate away from the threaded rod is fixedly connected to the bottom of the brush plate.

[0007] Optionally, a limiting plate is fixedly connected to the outer wall of the filter barrel. The limiting plate has a limiting hole at its top. The inner wall of the limiting hole is in contact with the outer wall of the limiting post. A guide block is fixedly connected to the bottom of the inner wall of the filter barrel.

[0008] Optionally, a barrier ring is fixedly connected to the bottom of the filter barrel, and there are two brush plates. The two brush plates are symmetrically arranged with the threaded rod as the center. A slot is opened at the bottom of the filter barrel, and a slot is opened on the outer wall of the filter barrel.

[0009] Optionally, a fixed plate is fixedly connected to the bottom of the filter bucket, a moving groove is opened on the left side of the moving plate, a pressing block is slidably connected to the inner wall of the moving groove, and a second moving plate is fixedly connected to the right side of the pressing block.

[0010] Optionally, a claw is fixedly connected to the top of the second movable plate, a spring telescopic column is fixedly connected to the right side of the second movable plate, and a limit plate is fixedly connected to the inner wall of the first movable plate. There are two second movable plates, and the left side of the second movable plate located on the right is fixedly connected to the right side of the spring telescopic column.

[0011] Optionally, the bottom of the fixing plate is provided with a fixing groove, the inner wall of the fixing groove is in contact with the outer wall of the claw, the number of pressing blocks is two, the two pressing blocks are symmetrically arranged, and the top of the moving plate is provided with a sliding groove, the outer wall of the claw is in contact with the sliding groove.

[0012] In summary, this application includes the following beneficial technical effects: 1. This utility model, by incorporating components such as a threaded rod, a movable plate, and brush plates, allows the filter bucket to be lifted upwards after the top cover is opened. Since the movable plate and the threaded rod are threadedly connected and the threaded rod is freely rotatable, lifting the filter bucket upwards will cause the movable plate to drive the threaded rod to rotate. The rotation of the threaded rod will cause the two brush plates to clean the outer wall of the filter bucket and the inner wall of the main body simultaneously. This allows the device to clean the outer wall of the filter bucket and the inner wall of the main body during disassembly, reducing the time required for workers to clean the outer wall of the filter bucket and the inner wall of the main body, and reducing the workload of workers.

[0013] 2. This utility model, by including a fixed plate, pressing blocks, and a second movable plate, allows the filter bucket to move to its highest position by simultaneously pressing the two pressing blocks. This causes the two movable plates to move the two claws in opposite directions. When the two claws reach the position of the second limiting plate, they release their restriction on the fixed plate, allowing the filter bucket to be disassembled. For installation, the first limiting plate can be aligned with the limiting post. Furthermore, because the bottom of the fixed plate near the claws is arc-shaped, pressing downwards causes the claws to retract and reset, re-fixing the fixed plate and filter bucket. This allows for quick disassembly and replacement, improving the overall convenience of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application; Figure 2 This is a schematic diagram of the rotating plate in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the fixing plate in an embodiment of this application; Figure 4 This is an embodiment of the present application. Figure 3 A magnified structural diagram of A in the diagram.

[0015] Reference numerals: 1. Main body; 11. Top cover; 111. Input pipe; 12. Fixing frame; 13. Filter barrel; 131. Filter screen; 14. Limiting post; 15. Output pipe; 2. Rotating plate; 21. Threaded rod; 211. Moving plate one; 22. Barrier ring; 23. Guide block; 24. Limiting plate one; 25. Brush plate; 3. Fixing plate; 31. Pressing block; 311. Moving plate two; 32. Claw; 33. Spring telescopic post; 34. Limiting plate two. Detailed Implementation

[0016] The following is in conjunction with the appendix Figures 1-4 This application will be further described in detail below. The technical solutions in the embodiments of this application will be clearly described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0017] This application discloses a quick-change electro-hydraulic servo valve oil filter seat structure. For example... Figure 1 As shown, the device includes a main body 1, a top cover 11 fixedly installed on the top of the main body 1, an input pipe 111 fixedly connected to the top of the top cover 11, a fixing frame 12 fixedly connected to the inner wall of the main body 1, a filter bucket 13 disposed inside the main body 1, a filter screen 131 fixedly connected to the inner wall of the filter bucket 13, a limit post 14 fixedly connected to the side of the inner wall of the main body 1 away from the fixing frame 12, and an output pipe 15 fixedly connected to the bottom of the main body 1.

[0018] In this embodiment, a movable plate 211 is provided below the filter barrel 13. A threaded hole is provided at the bottom of the movable plate 211, and a threaded rod 21 is threadedly connected to the inner wall of the threaded hole. A brush plate 25 is in contact with the inner wall of the main body 1.

[0019] Please see Figure 3 , Figure 4 As shown, a fixed plate 3 is fixedly connected to the bottom of the filter bucket 13, and a moving groove is opened on the left side of the moving plate 1 211. A pressing block 31 is slidably connected to the inner wall of the moving groove, and a moving plate 2 311 is fixedly connected to the right side of the pressing block 31.

[0020] Please see Figure 2As shown, a rotating plate 2 is rotatably connected to the top of the fixed frame 12 via a pin. The center of the top of the rotating plate 2 is fixedly connected to the bottom of the threaded rod 21, and the side of the top of the rotating plate 2 away from the threaded rod 21 is fixedly connected to the bottom of the brush plate 25.

[0021] Please see Figure 4 As shown, a claw 32 is fixedly connected to the top of the second movable plate 311, and a spring telescopic column 33 is fixedly connected to the right side of the second movable plate 311. A limit plate 34 is fixedly connected to the inner wall of the first movable plate 211. There are two second movable plates 311. The left side of the second movable plate 311 on the right side is fixedly connected to the right side of the spring telescopic column 33. The movement of the spring telescopic column can allow the two second movable plates 311 to move in opposite directions and then reset.

[0022] Please see Figure 2 As shown, a limiting plate 24 is fixedly connected to the outer wall of the filter barrel 13. A limiting hole is provided at the top of the limiting plate 24, and the inner wall of the limiting hole contacts the outer wall of the limiting post 14. The setting of the limiting plate 24 and the limiting post 14 can restrict the movement of the filter barrel 13. The space reserved at the bottom of the filter barrel 13 is adapted to the threaded rod 21. A guide block 23 is fixedly connected to the bottom of the inner wall of the filter barrel 13. The setting of the guide block 23 can guide the oil that has just been filtered by the filter screen 131, so that it flows along the inclined surface of the guide block 23. A barrier ring 22 is fixedly connected to the bottom of the filter barrel 13. The setting of the barrier ring 22 can prevent the oil flowing down after filtration from sticking to the moving plate 211, keeping it clean and convenient for workers to use. There are two brush plates 25.

[0023] Please see Figure 4 As shown, a fixing groove is provided at the bottom of the fixing plate 3. The bottom of the fixing plate 3 is arc-shaped. The inner wall of the fixing groove contacts the outer wall of the claw 32. There are two pressing blocks 31, which are symmetrically arranged. A sliding groove is provided at the top of the moving plate 211. The outer wall of the claw 32 contacts the sliding groove. The top of the claw 32 is inclined so that it can be adapted to the arc-shaped position at the bottom of the fixing plate 3. This allows the claw 32 to retract and reset while the fixing plate 3 moves downward.

[0024] Please see Figure 2 As shown, two brush plates 25 are symmetrically arranged with the threaded rod 21 as the center. The bottom of the filter barrel 13 has a slot 1, and the number of slot 1 slots is several, so that the filtered oil can flow down from this position. The outer wall of the filter barrel 13 has a slot 2, and the number of slot 2 slots can make the accumulated oil flow down from this position together with the slot 1 slot when there is too much filtered oil.

[0025] The implementation principle of the quick-change electro-hydraulic servo valve oil filter seat structure in this application embodiment is as follows: After the input pipe 111 is disassembled from the electro-hydraulic servo valve, the top cover 11 can be opened, and the operator can lift the filter bucket 13 upwards. Since the bottom of the filter bucket 13 is engaged with the moving plate 211 via the fixing plate 3, the moving plate 211 can move synchronously while the filter bucket 13 moves upwards. Furthermore, since the moving plate 211 is threadedly connected to the threaded rod 21, and the threaded rod 21 is rotatably connected to the fixing frame 12, it can rotate freely. When the filter bucket 13 is lifted upwards under the restriction of the limiting post 14 and the limiting plate 24, the threaded rod 21 can drive the rotating plate 2 and the two brush plates 25 on the rotating plate 2 to rotate, so that the brush plates 25 can clean the outer wall of the filter bucket 13 and the inner wall of the main body 1 during the rotation. This design reduces the time required for workers to clean the outer wall of the filter bucket 13 and the inner wall of the main body 1, thus reducing their workload. When the filter bucket 13 moves the first moving plate 211 to its highest position, workers can simultaneously press the two pressing blocks 31 to move the two moving plates 311 and the two claws 32 in opposite directions. When the two claws 32 move to the position of the second limiting plate 34, they will release the restriction on the fixing plate 3. At this point, workers can disassemble the filter bucket 13. When installation is required, the limiting plate 24 can be aligned with the limiting post 14. Since the bottom of the fixing plate 3 is arc-shaped near the claws 32, pressing down will cause the claws 32 to retract and reset, re-fixing the fixing plate 3 and the filter bucket 13. This allows for quick disassembly and replacement of the device, improving the overall convenience of the device.

[0026] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quick-change electro-hydraulic servo valve oil filter seat structure, comprising a main body (1), characterized in that: The main body (1) is fixedly installed with a top cover (11), and an input pipe (111) is fixedly connected to the top of the top cover (11). A fixing frame (12) is fixedly connected to the inner wall of the main body (1). A filter bucket (13) is provided inside the main body (1). A filter screen (131) is fixedly connected to the inner wall of the filter bucket (13). A limit post (14) is fixedly connected to the side of the inner wall of the main body (1) away from the fixing frame (12). An output pipe (15) is fixedly connected to the bottom of the main body (1). A movable plate (211) is provided below the filter barrel (13). A threaded hole is provided at the bottom of the movable plate (211). A threaded rod (21) is threadedly connected to the inner wall of the threaded hole. A brush plate (25) is in contact with the inner wall of the main body (1).

2. The quick-change electro-hydraulic servo valve oil filter seat structure according to claim 1, characterized in that: The top of the fixed frame (12) is rotatably connected to a rotating plate (2) via a pin. The center of the top of the rotating plate (2) is fixedly connected to the bottom of the threaded rod (21), and the side of the top of the rotating plate (2) away from the threaded rod (21) is fixedly connected to the bottom of the brush plate (25).

3. The quick-change electro-hydraulic servo valve oil filter seat structure according to claim 1, characterized in that: The filter barrel (13) is fixedly connected to a limiting plate (24) on its outer wall. The limiting plate (24) has a limiting hole at its top. The inner wall of the limiting hole is in contact with the outer wall of the limiting post (14). A guide block (23) is fixedly connected to the bottom of the inner wall of the filter barrel (13).

4. The quick-change electro-hydraulic servo valve oil filter seat structure according to claim 1, characterized in that: The filter barrel (13) is fixedly connected to a barrier ring (22) at the bottom. There are two brush plates (25). The two brush plates (25) are symmetrically arranged with the threaded rod (21) as the center. The bottom of the filter barrel (13) is provided with a slot one, and the outer wall of the filter barrel (13) is provided with a slot two.

5. The quick-change electro-hydraulic servo valve oil filter seat structure according to claim 1, characterized in that: The filter bucket (13) is fixedly connected to a fixed plate (3) at the bottom. A moving groove is provided on the left side of the moving plate one (211). A pressing block (31) is slidably connected to the inner wall of the moving groove. A moving plate two (311) is fixedly connected to the right side of the pressing block (31).

6. The quick-change electro-hydraulic servo valve oil filter seat structure according to claim 5, characterized in that: The top of the second movable plate (311) is fixedly connected to a claw (32), and the right side of the second movable plate (311) is fixedly connected to a spring telescopic column (33). The inner wall of the first movable plate (211) is fixedly connected to a limit plate (34). There are two second movable plates (311), and the left side of the second movable plate (311) on the right side is fixedly connected to the right side of the spring telescopic column (33).

7. The quick-change electro-hydraulic servo valve oil filter seat structure according to claim 6, characterized in that: The bottom of the fixed plate (3) is provided with a fixed groove, the inner wall of the fixed groove is in contact with the outer wall of the claw (32), the number of the pressing block (31) is two, the two pressing blocks (31) are symmetrically arranged, the top of the moving plate (211) is provided with a sliding groove, and the outer wall of the claw (32) is in contact with the sliding groove.

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