Screening filter screen structure of crusher

Abstract

The utility model discloses a material screening filter screen structure of a crusher, which comprises an annular outer frame, an annular step groove is arranged at the bottom of the annular outer frame, a screen body is arranged in the annular step groove, and a circular fixing frame used for fixing the screen body in the annular step groove or loosening the screen body from the annular step groove is further arranged in the annular step groove. Clamping blocks are arranged on the side wall of the circular fixing frame, L-shaped clamping grooves matched with the clamping blocks are formed in the bottom of the mounting ring, the circular fixing frame can be fixed into the annular step groove or loosened from the annular step groove through matching of the L-shaped clamping grooves and the clamping blocks, and therefore the net body can be fixed into the annular step groove or loosened from the annular step groove. When the screening filter screen is replaced, the screen body can be disassembled and assembled, so that when the screening filter screen is replaced, only the screen body needs to be replaced, the whole screening filter screen does not need to be replaced, and waste of resources is avoided.

Description

Technical Field

[0001] This utility model relates to the field of screen filter technology for crushers, and in particular to a screen filter structure for crushers. Background Technology

[0002] A crusher is a specialized machine used to crush and process large solid materials to the required size. To separate fragments of different sizes, a screen is typically used to sift the fragments. Existing screens consist of a cylindrical container with the screen fixed to its inner wall. Fragments are poured in from the top of the container, sieved, and fall down the cylindrical surface, while larger fragments remain on the screen. In actual production, because the annular outer frame and the screen body are usually integrated, and the conventional replacement method involves replacing the entire screen, regularly replacing the screen body inevitably wastes a large number of annular outer frames, resulting in resource waste. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a screen filter structure for a crusher. This solves the technical problem that in the prior art, the annular outer frame and the screen body of the screen filter are usually set as one piece, and the conventional replacement method is to replace the entire screen filter. Therefore, regularly replacing the screen filter body will inevitably waste a large amount of the screen outer frame, thus causing a waste of resources.

[0004] To achieve the above technical objectives, the present invention provides a screen filter structure for a crusher, comprising an annular outer frame, an annular stepped groove at the bottom of the annular outer frame, a screen body inside the annular stepped groove, and a circular fixing frame inside the annular stepped groove for fixing the screen body inside or releasing it from the annular stepped groove. The side wall of the circular fixing frame is provided with a locking block, and the bottom of the mounting ring is provided with an L-shaped locking groove that cooperates with the locking block.

[0005] Furthermore, the screen filter structure also includes a circular support frame located between the screen body and the circular fixed frame.

[0006] Furthermore, a fixing rod is installed on the top edge of the circular support frame, and a fixing groove that mates with the fixing rod is provided on the top of the annular stepped groove.

[0007] Furthermore, the upper end of the fixing rod has a tapered structure.

[0008] Furthermore, the circular support frame includes a first inner ring and a first outer ring arranged at the same center, and the first inner ring and the first outer ring are connected by a first connecting rod.

[0009] Furthermore, the bottom of the card block is provided with a protrusion, and the inner wall of the L-shaped card slot is provided with a groove that matches the protrusion.

[0010] Furthermore, the protrusion has a hemispherical structure.

[0011] Furthermore, the circular fixing frame includes a second inner ring and a second outer ring arranged at the same center, and the second inner ring and the second outer ring are connected by a second connecting rod.

[0012] The beneficial effects of this utility model include:

[0013] 1. By using the L-shaped slot and the locking block, the circular fixing frame can be fixed inside or released from the annular stepped groove, thereby fixing or releasing the screen inside or from the annular stepped groove. This allows for the disassembly and assembly of the screen. Therefore, when replacing the screen, only the screen needs to be replaced, instead of replacing the entire screen, thus avoiding waste of resources.

[0014] 2. By setting a circular support frame between the screen body and the circular fixed frame, and installing a fixing rod on the top edge of the circular support frame, and setting a fixing groove at the top of the annular stepped groove that matches the fixing rod, when the circular support frame is pressed onto the screen body, the fixing rod passes through the screen body and is fixed inside the fixing groove, thus preventing the screen from detaching from the annular stepped groove during use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the screen filter structure of the pulverizer according to an embodiment of the present invention;

[0016] Figure 2 This is a cross-sectional view of the screen filter structure of the pulverizer according to an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the annular outer frame structure of an embodiment of this utility model;

[0018] Figure 4 This is another state diagram of the annular outer frame according to an embodiment of this utility model;

[0019] Figure 5 This is a schematic diagram of the circular fixing frame structure according to an embodiment of the present utility model;

[0020] Figure 6 This is a schematic diagram of the circular support frame structure according to an embodiment of the present utility model;

[0021] In the figure: 1. Annular outer frame; 11. Annular stepped groove; 12. L-shaped slot; 121. Groove; 13. Fixing groove; 2. Mesh body; 3. Circular fixing frame; 31. Locking block; 311. Protrusion; 32. Second inner ring; 33. Second outer ring; 34. Second connecting rod; 4. Circular support frame; 41. Fixing rod; 42. First inner ring; 43. First outer ring; 44. First connecting rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] This utility model embodiment provides a screen filter structure for a crusher, such as... Figure 1-6 As shown, the screen includes an annular outer frame 1, with an annular stepped groove 11 at the bottom. A mesh 2 is located inside the annular stepped groove 11. A circular fixing bracket 3 is also provided inside the annular stepped groove 11 for fixing or releasing the mesh 2 from within the groove. A locking block 31 is provided on the side wall of the circular fixing bracket 3. An L-shaped locking groove 12, which cooperates with the locking block 31, is provided at the bottom of the mounting ring 1. By cooperating with the locking block 31, the circular fixing bracket 3 can be fixed inside or released from the annular stepped groove 11, thereby fixing or releasing the mesh 2 from within the annular stepped groove 11. This allows for easy assembly and disassembly of the mesh 2. Therefore, when replacing the screen, only the mesh 2 needs to be replaced, without replacing the entire screen, thus avoiding resource waste.

[0024] In this embodiment, the screen filter structure also includes a circular support frame 4 disposed between the screen body 2 and the circular fixing frame 3. When the screen body 2 is installed inside the annular stepped groove 11, the circular support frame 4 can pre-press the screen body 2 inside the annular stepped groove 11. Then, the circular fixing frame 3 is pressed onto the annular pad 4, and the circular fixing frame 3 is rotated to make the locking block 31 engage with the L-shaped locking groove 12. Therefore, direct contact between the screen body 2 and the circular fixing frame 3 can be avoided, making it easier to rotate the circular fixing frame 3. At the same time, a fixing rod 41 is installed on the top edge of the circular support frame 4, and a fixing groove 13 that cooperates with the fixing rod 41 is provided at the top of the annular stepped groove 11. When the circular support frame 4 is pressed onto the screen body 2, the screen body 2 can be pre-pressed into the annular stepped groove 11. When the screen is in use, the fixing rod 41 passes through the screen body 2 and is fixed inside the fixing groove 13, which can prevent the screen body 2 from detaching from the annular stepped groove 11 during use. At the same time, the upper end of the fixing rod 41 has a conical structure, which makes it easier for the fixing rod 41 to pass through the screen body 2. Meanwhile, the circular support frame 4 includes a first inner ring 42 and a first outer ring 43 arranged at the same center. The first inner ring 42 and the first outer ring 43 are connected by a first connecting rod 44. The circular support frame 4 designed as described above can stably support the screen body 2 and prevent the material on the screen body 2 from crushing the screen body 2. At the same time, the operator can hold the first connecting rod 44 to pick up the circular support frame 4, making the operation more convenient.

[0025] In this embodiment, the bottom of the locking block 31 is provided with a protrusion 311, and the inner wall of the L-shaped slot 12 is provided with a groove 121 that cooperates with the protrusion 311. When the locking block 31 is inserted into the L-shaped slot 12, the protrusion 311 can be inserted into the groove 121, preventing the locking block 31 from disengaging from the L-shaped slot 12 when the screen filter is in use. At the same time, the protrusion 311 is a hemispherical structure, which makes it easier for the protrusion 311 to be inserted into or rotated out of the groove 121 when the circular fixing frame 3 is rotated. Meanwhile, the circular fixing frame 3 includes a second inner ring 32 and a second outer ring 33 arranged at the same center. The second inner ring 32 and the second outer ring 33 are connected by a second connecting rod 34. The circular fixing frame 3 designed as described above can stably support the circular support frame 4, improving the stability of the screen filter structure. At the same time, the operator can hold the second connecting rod 34 to pick up or rotate the circular fixing frame 3, making the operation more convenient.

[0026] Specific principle: When replacing the net body 3, rotate the circular fixing frame 3 to rotate the locking block 31 to the opening of the L-shaped locking groove 12. Then, take out the circular fixing frame 3, the circular support frame 4 and the net body 2 from the inside of the annular stepped groove 11 in sequence. After the net body 2 is taken out from the inside of the annular stepped groove 11, put the new net body 2 into the stepped groove 11. Then, press the circular support frame 4 on the net body 2. At the same time, the fixing rod 41 passes through the net body 2 and is fixed inside the fixing groove 13. Finally, rotate the circular fixing frame 3 to make the locking block 31 lock into the inside of the L-shaped locking groove 12, and the replacement of the net body can be completed.

[0027] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A screen filter structure for a pulverizer, characterized in that, The device includes an annular outer frame (1), the bottom of which is provided with an annular stepped groove (11), and a mesh body (2) is provided inside the annular stepped groove (11). The annular stepped groove (11) is also provided with a circular fixing frame (3) for fixing the mesh body (2) inside the annular stepped groove (11) or releasing it from the annular stepped groove (11). The side wall of the circular fixing frame (3) is provided with a locking block (31), and the bottom of the annular outer frame (1) is provided with an L-shaped locking groove (12) that cooperates with the locking block (31).

2. The screen filter structure of the pulverizer according to claim 1, characterized in that, The screen filter structure also includes a circular support frame (4) located between the screen body (2) and the circular fixed frame (3).

3. The screen filter structure of the pulverizer according to claim 2, characterized in that, The circular support frame (4) has a fixing rod (41) installed on its top edge, and the top of the annular stepped groove (11) has a fixing groove (13) that cooperates with the fixing rod (41).

4. The screen filter structure of the pulverizer according to claim 3, characterized in that, The upper end of the fixing rod (41) has a tapered structure.

5. The screen filter structure of the pulverizer according to claim 2, characterized in that, The circular support frame (4) includes a first inner ring (42) and a first outer ring (43) arranged at the same center, and the first inner ring (42) and the first outer ring (43) are connected by a first connecting rod (44).

6. The screen filter structure of the pulverizer according to claim 1, characterized in that, The bottom of the card block (31) is provided with a protrusion (311), and the inner wall of the L-shaped card slot (12) is provided with a groove (121) that matches the protrusion (311).

7. The screen filter structure of the pulverizer according to claim 6, characterized in that, The protrusion (311) is a hemispherical structure.

8. The screen filter structure of the pulverizer according to claim 1, characterized in that, The circular fixing frame (3) includes a second inner ring (32) and a second outer ring (33) arranged at the same center, and the second inner ring (32) and the second outer ring (33) are connected by a second connecting rod (34).

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