A kind of full-automatic scraper filter scraper assembly

Abstract

The utility model discloses a kind of scraper components for full-automatic scraper filter, each group of scraper components includes fixed plate, two fixed rods, blade, three displacement rods, three springs, one end of two fixed rods is fixedly connected with rotating shaft, the other end of two fixed rods is fixedly connected with the one end of fixed plate close to rotating shaft, three displacement rods are respectively inserted in fixed plate with sliding, blade is vertically placed, the side of blade is fixedly connected with three displacement rods, three springs are respectively set on three displacement rods, three springs are respectively located between blade and fixed plate;Blade is square plate block, the side of blade far from displacement rod is equipped with chamfer, the upper end of the side of blade facing rotating shaft rotation direction is equipped with first arc opening, the lower end of the side of blade facing rotating shaft rotation direction is equipped with second arc opening.The utility model has the advantages that the scraper is close to the inner side wall of filter element, and the impurities are guided downward when being scraped.

Description

Technical Field

[0001] This utility model relates to the field of fully automatic scraper filters, and in particular to a scraper assembly for a fully automatic scraper filter. Background Technology

[0002] Scraper filters are a highly efficient and reliable industrial filtration solution specifically designed to address the challenges of continuous filtration of high-viscosity, easily clogging liquids. Through a unique mechanical scraping method, they achieve automatic cleaning without shutting down the production process, playing a crucial role in improving production efficiency, ensuring product quality, and reducing operating costs.

[0003] Currently, a patent with authorization announcement number "CN219579995U" discloses a fully automatic scraper filter, including a main body. The top of the main body has an opening, and a pressure cover is fixedly connected to it by bolts. A transfer box is set in the center of the pressure cover, and a reduction motor is installed on the top of the transfer box. The main body has a feed inlet and a discharge outlet. A pipeline mechanism is set on one side of the feed inlet. A filter element is set inside the main body, and a scraper kit is set inside the filter element. A control cabinet is set on one side of the main body, and the control cabinet is electrically connected to each component.

[0004] However, its scraper cannot guarantee that it will come into contact with the inner sidewall of the filter element, thus it cannot guarantee that the impurities will be scraped off cleanly. Moreover, when scraping off impurities, the smooth side of the scraper cannot directly guide the impurities to flow downwards. The impurities will be pushed and piled up directly, and will only fall off when they form a large volume, thus increasing the burden on the scraper. Utility Model Content

[0005] The purpose of this invention is to provide a scraper assembly for a fully automatic scraper filter, which has the advantages of making the scraper stick tightly to the inner side wall of the filter element and guiding the impurities downwards when scraping them off.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A scraper assembly for a fully automatic scraper filter includes a main body, a filter element inside the main body, a rotating shaft rotatably connected to the middle of the filter element, a drive motor fixedly mounted on the top of the main body, and the rotating shaft being driven by the drive motor. The filter element contains several scraper assemblies, each of which is fixedly connected to the rotating shaft. Each scraper assembly includes a fixed plate, two fixed rods, a blade, three displacement rods, and three springs. The fixed plate is vertically positioned. One end of each of the two fixed rods is fixedly connected to the rotating shaft, and the other end of each of the two fixed rods is fixedly connected to the end of the fixed plate near the rotating shaft. The three displacement rods are slidably inserted into the fixed plate. The blade is vertically positioned, with one side of the blade fixedly connected to the three displacement rods. The three springs are respectively sleeved on the three displacement rods and are located between the blade and the fixed plate. The blade is a square plate-shaped block. The side of the blade away from the displacement rod has a chamfer. The upper end of the side of the blade facing the rotation direction of the rotating shaft has a first arc-shaped opening, and the lower end of the side of the blade facing the rotation direction of the rotating shaft has a second arc-shaped opening.

[0007] The preferred solution is as follows: Preferably, one end of the first arc-shaped opening and the second arc-shaped opening are connected to the chamfer, and the arc shape decreases from the side of the blade facing the direction of the rotation axis to the chamfer; The distance from the upper end of the first arc-shaped opening is half the distance from the lower end, and the distance from the second arc-shaped opening is the same as the distance from the lower end of the first arc-shaped opening.

[0008] Preferably, the connection between the upper and lower ends of the first arc-shaped opening is arc-shaped.

[0009] Preferably, the fixing plate has three circular through holes arranged in a row from top to bottom on the side near the rotating shaft, and the three displacement rods are respectively slidably inserted into the three circular through holes; Each of the displacement rods has an external thread at one end near the rotating shaft, and a first bolt is threaded onto the external thread of each displacement rod. The first bolt abuts against the side of the fixing plate near the rotating shaft. Each displacement rod has a second bolt threaded onto its external thread. The second bolt is fixedly connected to the displacement rod and is located on the side of the first bolt near the rotation shaft.

[0010] Preferably, each of the springs is in a compressed state.

[0011] Preferably, several of the scraper assemblies are arranged in a spiral downward array along the sidewall of the rotation axis.

[0012] Preferably, a scraper is also fixedly provided at the bottom of the rotating shaft.

[0013] In summary, this utility model has the following beneficial effects: 1. The fixed plate design facilitates blade replacement; 2. The combination of blades, three displacement rods, and three springs allows the springs to hold the blades in place, ensuring they fit snugly against the filter element. 3. By setting the first and second arc-shaped openings of the blade, impurities can be guided downwards along the first and second arc-shaped openings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structural design of the embodiment; Figure 2 This is a partial cross-sectional view of an embodiment; Figure 3 This is a schematic diagram of the rotating shaft and scraper assembly in the embodiment; Figure 4 This is a schematic diagram of the overall structure of the scraper assembly in an embodiment.

[0015] In the figure, 1. Main body; 2. Filter element; 3. Rotating shaft; 4. Drive motor; 5. Scraper assembly; 6. Fixing plate; 7. Fixing rod; 8. Blade; 9. Displacement rod; 10. Spring; 11. First bolt; 12. Second bolt; 13. Scraper; 811. First arc-shaped opening; 812. Second arc-shaped opening. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings.

[0018] A scraper assembly for a fully automatic scraper filter, such as Figures 1-4 As shown, it includes a main body 1, a filter element 2 inside the main body 1, a rotating shaft 3 rotatably connected to the middle position of the filter element 2, a drive motor 4 fixedly installed on the top of the main body 1, the rotating shaft 3 being connected to the drive motor 4 for transmission, and a number of scraper assemblies 5 inside the filter element 2, each scraper assembly 5 being fixedly connected to the rotating shaft 3.

[0019] Several scraper assemblies 5 are arranged in a spiral downward array along the side wall of the rotating shaft 3 to ensure that the scraper assemblies 5 can scrape off impurities from the inner side wall of the filter element 2.

[0020] A scraper 13 is also fixed at the bottom of the rotating shaft 3 to scrape off impurities that fall to the bottom of the filter element 2.

[0021] Each scraper assembly 5 includes a fixing plate 6, two fixing rods 7, a blade 8, three displacement rods 9, and three springs 10; The fixed plate 6 is placed vertically. One end of each of the two fixed rods 7 is fixedly connected to the rotating shaft 3, and the other end of each of the two fixed rods 7 is fixedly connected to the end of the fixed plate 6 near the rotating shaft 3. The three displacement rods 9 are slidably inserted into the fixed plate 6. The fixed plate 6 has three circular through holes arranged from top to bottom on the side near the rotating shaft 3. The three displacement rods 9 are slidably inserted into the three circular through holes. Each displacement rod 9 has an external thread at one end near the rotating shaft 3, and a first bolt 11 is threaded onto the external thread of each displacement rod 9. The first bolt 11 abuts against the side of the fixing plate 6 near the rotating shaft 3. The external threads of the displacement rod 9 are all threaded with second bolts 12. The second bolts 12 are fixedly connected to the displacement rod 9. The second bolts 12 are located on the side of the first bolt 11 near the rotating shaft 3. This can prevent the first bolt 11 from loosening and falling out of the displacement rod 9. During assembly, the second bolts 12 only need to be welded using a welding machine. When changing the blade 8, the displacement rod 9 can be cut using a cutting machine.

[0022] The blade 8 is placed vertically, and one side of the blade 8 is fixedly connected to three displacement rods 9. Three springs 10 are respectively sleeved on the three displacement rods 9. The three springs 10 are respectively located between the blade 8 and the fixed plate 6. Each spring 10 is in a compressed state, so that the spring 10 is in a rebound state, which can press the blade 8 against the inner side wall of the filter element 2. The blade 8 is a square plate-shaped block. The side of the blade 8 away from the displacement rod 9 is chamfered. The upper end of the side of the blade 8 facing the rotation direction of the rotating shaft 3 is provided with a first arc-shaped opening 811, and the lower end of the side of the blade 8 facing the rotation direction of the rotating shaft 3 is provided with a second arc-shaped opening 812. One end of the first arc-shaped opening 811 and the second arc-shaped opening 812 are connected to the chamfer. The arc shape decreases from the side of the blade 8 facing the direction of the rotation axis 3 towards the chamfer. The connection between the upper and lower ends of the first arc-shaped opening 811 is arc-shaped. The distance at the upper end of the first arc-shaped opening 811 is half the distance at the lower end, and the distance at the second arc-shaped opening 812 is the same as the distance at the lower end of the first arc-shaped opening 811. This allows impurities to slide down along the guides of the first arc-shaped opening 811 and the second arc-shaped opening 812.

[0023] Specific implementation process: Liquid flows in from the inlet at the top of the main body 1 and flows outward from the inner surface of the filter element 2. The lower end of the filter element 2 is connected to the outlet of the main body 1. The filtered liquid flows out from the outlet of the main body 1, and impurity particles are intercepted on the inner surface of the filter element 2. When a certain amount of impurities are intercepted on the inner surface of the filter element 2, the cleaning procedure is started. The drive motor 4 drives the rotating shaft 3 to rotate counterclockwise. The rotating shaft 3 drives the blade 8, which is pushed by the reaction force of the spring 10 and is tightly attached to the inner surface of the filter element 2, to rotate. This scrapes away the impurities from the inner surface of the filter element 2. The impurities leave the surface of the filter element 2 along the blade 8 and are guided by the first arc-shaped opening 811 and the second arc-shaped opening 812. They also fall into the inner bottom wall of the filter element 2 along with the downward flowing liquid. The scraper 13 sweeps the impurities on the inner wall of the filter element 2 into the bottom of the main body 1 through the drain hole at the bottom of the filter element 2. The impurities accumulate at the bottom of the main body 1, and the drain valve opens periodically to discharge the solid and liquid containing impurities from the drain pipe.

[0024] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A scraper assembly for a fully automatic scraper filter, comprising a main body (1), wherein a filter element (2) is disposed inside the main body (1), a rotating shaft (3) is rotatably connected to the middle position of the filter element (2), a drive motor (4) is fixedly disposed on the top of the main body (1), the rotating shaft (3) is connected to the drive motor (4) for transmission, and a plurality of scraper assemblies (5) are disposed inside the filter element (2), each of the scraper assemblies (5) being fixedly connected to the rotating shaft (3), characterized in that: Each scraper assembly (5) includes a fixed plate (6), two fixed rods (7), a blade (8), three displacement rods (9), and three springs (10). The fixed plate (6) is placed vertically. One end of each of the two fixed rods (7) is fixedly connected to the rotating shaft (3), and the other end of each of the two fixed rods (7) is fixedly connected to the end of the fixed plate (6) near the rotating shaft (3). The three displacement rods (9) are slidably inserted into the fixed plate (6). The blade (8) is placed vertically. One side of the blade (8) is fixedly connected to the three displacement rods (9). The three springs (10) are respectively sleeved on the three displacement rods (9) and are located between the blade (8) and the fixed plate (6). The blade (8) is a square plate-shaped block. The side of the blade (8) away from the displacement rod (9) is chamfered. The upper end of the blade (8) facing the rotation direction of the rotating shaft (3) is provided with a first arc-shaped opening (811), and the lower end of the blade (8) facing the rotation direction of the rotating shaft (3) is provided with a second arc-shaped opening (812).

2. The scraper assembly for a fully automatic scraper filter according to claim 1, characterized in that: One end of the first arc-shaped opening (811) and the second arc-shaped opening (812) are connected to the chamfer, and the arc shape decreases from the side of the blade (8) facing the direction of the rotation axis (3) towards the chamfer; The distance at the upper end of the first arc-shaped opening (811) is half the distance at the lower end, and the distance at the second arc-shaped opening (812) is the same as the distance at the lower end of the first arc-shaped opening (811).

3. The scraper assembly for a fully automatic scraper filter according to claim 2, characterized in that: The connection between the upper and lower ends of the first arc-shaped opening (811) is arc-shaped.

4. The scraper assembly for a fully automatic scraper filter according to claim 3, characterized in that: The fixed plate (6) has three circular through holes arranged from top to bottom on the side near the rotating shaft, and the three displacement rods (9) are respectively slidably inserted into the three circular through holes; Each displacement rod (9) has an external thread at one end near the rotating shaft (3), and a first bolt (11) is threaded onto the external thread of each displacement rod (9). The first bolt (11) abuts against the side of the fixing plate (6) near the rotating shaft (3). The displacement rod (9) is threaded with a second bolt (12) on its external thread. The second bolt (12) is fixedly connected to the displacement rod (9). The second bolt (12) is located on the side of the first bolt (11) near the rotating shaft (3).

5. The scraper assembly for a fully automatic scraper filter according to claim 4, characterized in that: Each of the springs (10) is in a compressed state.

6. The scraper assembly for a fully automatic scraper filter according to claim 5, characterized in that: Several of the scraper assemblies (5) are arranged in a spiral downward array along the sidewall of the rotating shaft (3).

7. The scraper assembly for a fully automatic scraper filter according to claim 6, characterized in that: A scraper (13) is also fixedly provided at the bottom of the rotating shaft (3).

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