Double-drum precleaner

Abstract

The utility model relates to the technical field of precleaner equipment, in particular to a double-barrel precleaner which comprises a precleaner body, a feeding port is integrally formed in the top end of the precleaner body, a hopper is fixedly connected to the surface of the feeding port, drawing plates are connected to the surfaces of the two sides of the hopper in an inserted mode, and the surfaces of the two sides of the hopper are connected with two sets of clamping blocks in a sliding mode. The top end surface of the hopper is slidably connected with an extension frame, the two side surfaces of the extension frame are fixedly connected with sliding plates, the two sides of the top end of the hopper are slidably connected with insertion blocks, and the insertion blocks are inserted into the surfaces of the sliding plates; the screening device has the beneficial effects that the distance-adjustable drawing plates are arranged on the surface of the hopper, control over the falling flow of materials is achieved, the screening effect is improved, after the two drawing plates are attached, the hopper can temporarily store the materials, the applicability is improved, the height of the extending frame is adjusted through the inserting blocks on the surface of the hopper, the material capacity is adjusted, and the screening efficiency is improved. The screening continuity and stability are ensured, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of primary cleaning screen equipment, in particular to a double-drum primary cleaning screen. Background Art

[0002] After mechanical threshing, corn, wheat, cereals and other grains often contain a lot of dust, lint, bran and other debris, which is not conducive to the drying, storage and deep processing of grain particles. The impurities must be removed through the sieve. The cylindrical primary cleaning screen is used for the initial cleaning of raw materials in the grain processing industry. It can be used to remove large impurities mixed in the grain, so as to avoid equipment failure and damage during the subsequent cleaning, transportation and processing of the grain.

[0003] In the prior art, a feed hopper is provided on the surface of the double-drum primary cleaning screen, and the feed hopper is connected with the internal pipeline. The material is poured from the feed hopper, reaches the double-layer screen drum through the pipeline, is screened by the screen drum, and is transported to different discharge ports.

[0004] However, the feed hopper is directly connected to the internal pipeline, and the material flow entering the primary screening screen cannot be adjusted. When the material amount is too large, the screen will be overloaded, resulting in material accumulation and blockage, affecting the screening effect. In addition, the capacity of the feed hopper is fixed, and the capacity cannot be adjusted according to the falling speed of the material, which leads to discontinuous screening and affects the screening efficiency. Utility Model Content

[0005] The utility model aims to provide a double-drum primary cleaning screen to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-drum primary cleaning screen, comprising a primary cleaning screen body, a feed port integrally formed at the top of the primary cleaning screen body, a hopper fixedly connected to the surface of the feed port, drawers are inserted into the two side surfaces of the hopper, two groups of blocks are slidably connected to the two side surfaces of the hopper, the blocks are respectively pressed against the two side surfaces of the drawers to limit the position of the drawers, an extension frame is slidably connected to the top surface of the hopper, slides are fixedly connected to the two side surfaces of the extension frame, plug blocks are slidably connected to the two sides of the top of the hopper, and the plug blocks are inserted into the surface of the slide.

[0007] Preferably, a draw groove is provided on the surface of the hopper, the draw groove is a "U"-shaped groove, a draw plate is inserted on both sides of the surface of the draw groove, the draw plate is a "T"-shaped plate structure, and multiple slots distributed in an array are provided on the two side surfaces of the draw plate, and the slots are square grooves.

[0008] Preferably, both side surfaces of the hopper are provided with limiting grooves, the limiting grooves are "T"-shaped grooves, one end of the limiting grooves is fixedly connected to a rubber block, the other end of the rubber block is fixedly connected to a limiting block, the limiting block is a "T"-shaped block structure, the surface of the card block is fixedly connected to one end of the limit block, the card block is a square plate structure, and one end of the card block is inserted into the surface of the card slot.

[0009] Preferably, slide grooves are provided on the inner walls of both side surfaces of the hopper, and a slide plate is slidably connected to the surface of the slide groove. The slide plate has a square plate-like structure, and a plurality of parallel slots are provided on the surface of the slide plate. The slots are square grooves.

[0010] Preferably, grooves are provided on both side surfaces of the hopper, the slide grooves are connected to the grooves, and blocks are inserted into the surfaces of the grooves. The blocks are in a square block structure, and one end of the blocks is inserted into the surface of the slots to brake the extension frame.

[0011] Preferably, a rubber groove is formed on the surface of one end of the insert block away from the slot, the rubber groove is a square groove, a rubber strip is fixedly connected to the center of the surface of the rubber groove, and both ends of the rubber strip are fixedly connected to the surface of the hopper.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The double-drum primary cleaning screen proposed by the utility model has drawers with adjustable spacing on the surface of the hopper to control the falling flow rate of the material and improve the screening effect; after the two drawers are fitted together, the hopper can temporarily store the material to increase applicability; the surface of the hopper can adjust the height of the extension frame through inserts to adjust the material capacity, thereby ensuring the continuity and stability of the screening and improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a half-section schematic diagram of the structure of the utility model;

[0016] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0017] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0018] Figure 5 This is a schematic diagram of the hopper structure of the utility model.

[0019] In the figure: 1. primary cleaning screen body; 2. hopper; 3. extension frame; 4. slide; 5. drawer plate; 6. drawer slot; 7. clamping slot; 8. limit slot; 9. rubber block; 10. limit block; 11. clamping block; 12. slide plate; 13. slot; 14. insert block; 15. groove; 16. rubber slot; 17. rubber strip; 18. feed port. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] See also Figure 1 to Figure 2 The utility model provides a technical solution: a double-drum primary cleaning screen, including a primary cleaning screen body 1, a feed inlet 18 is integrally formed at the top of the primary cleaning screen body 1, and a hopper 2 is fixedly connected to the surface of the feed inlet 18, and a draw plate 5 is inserted on the two side surfaces of the hopper 2. Two sets of card blocks 11 are slidably connected to the two side surfaces of the draw plate 5, and the card blocks 11 are respectively pressed against the two side surfaces of the draw plate 5 to limit the draw plate 5. An extension frame 3 is slidably connected to the top surface of the hopper 2, and a slide plate 12 is fixedly connected to the two side surfaces of the extension frame 3. Insert blocks 14 are slidably connected to the two sides of the top of the hopper 2, and the insert blocks 14 are inserted into the surface of the slide plate 12. The draw plates 5 with adjustable spacing are arranged on the surface of the hopper 2 to control the falling flow rate of the materials and improve the screening effect. After the two draw plates 5 are attached, the hopper 2 can temporarily store the materials and increase the applicability. The surface of the hopper 2 adjusts the height of the extension frame 3 through the insert blocks 14 to adjust the material capacity, ensure the continuity and stability of the screening, and improve the screening efficiency.

[0023] Embodiment 2

[0024] See also Figure 3On the basis of the first embodiment, in order to adjust the spacing between the two draw plates 5, a draw groove 6 is provided on the surface of the hopper 2, and the draw groove 6 is a "U"-shaped groove. The draw plate 5 is plugged into the two sides of the surface of the draw groove 6. The draw plate 5 is a "T"-shaped plate structure. A plurality of slots 7 distributed in an array are provided on the two side surfaces of the draw plate 5. The slots 7 are square slots. Limiting slots 8 are provided on both side surfaces of the hopper 2. The limiting slots 8 are "T"-shaped slots. A rubber block 9 is fixedly connected to one end of the limiting slot 8. The other end of the rubber block 9 is fixedly connected to a limiting block 10. The limiting block 10 is a "T"-shaped block structure. The surface of the card block 11 is fixedly connected to one end of the limiting block 10. The card block 11 is a square plate structure. One end of the card block 11 is plugged into the surface of the card slot 7.

[0025] The limiting groove 8 is provided so that the limiting block 10 can slide in the limiting groove 8, and the limiting groove 8 limits the clamping block 11 so that the clamping block 11 can only move in the horizontal direction. The rubber block 9 is provided. When the clamping block 11 is clamped on the surface of the clamping groove 7, the rubber block 9 is in the original state and has a restraining effect on the clamping block 11. When the clamping block 11 is manually moved to separate from the clamping groove 7, the limiting block 10 moves toward one end of the rubber block 9, so that the rubber block 9 is in a compressed state, so that the rubber block 9 has a tendency to rebound.

[0026] Embodiment 3

[0027] See also Figures 4 to 5 On the basis of the second embodiment, in order to adjust the height of the hopper 2, slide grooves 4 are provided on the inner walls of the two side surfaces of the hopper 2, and a slide plate 12 is slidably connected to the surface of the slide groove 4. The slide plate 12 is a square plate-shaped structure. A plurality of parallel slots 13 are provided on the surface of the slide plate 12. The slots 13 are square slots. Grooves 15 are provided on the two side surfaces of the hopper 2. The slide grooves 4 are connected to the grooves 15. An insert block 14 is inserted on the surface of the groove 15. The insert block 14 is a square block structure. One end of the insert block 14 is inserted into the surface of the slot 13 to brake the extension frame 3. A rubber groove 16 is provided on the surface of the end of the insert block 14 away from the slot 13. The rubber groove 16 is a square groove. A rubber strip 17 is fixedly connected to the center of the surface of the rubber groove 16. Both ends of the rubber strip 17 are fixedly connected to the surface of the hopper 2.

[0028] A rubber strip 17 is provided to make one end of the insert block 14 fit tightly in the slot 13 to prevent the insert block 14 from separating from the slot 13 and causing the extension frame 3 to fall off. The extension frame 3 can increase the height of the hopper 2 to adapt to more usage scenarios. The slide groove 4 and the slide plate 12 can allow the extension frame 3 to slide on the surface of the hopper 2 to achieve the pulling and storage of the extension frame 3.

[0029] In actual use, first, manually move the blocks 11 on both sides. After the blocks 11 are separated from the card slots 7, pull out the drawer plate 5 to adjust the distance between the two drawers 5, and then release the blocks 11. The rubber block 9 returns to its original compressed state, driving the limit block 10 to move to one side of the drawer plate 5. The limit block 10 drives the block 11 to move and be engaged with the surface of the card slot 7, so as to control the material flow. When the hopper height needs to be adjusted, pull the plug block 14 by hand to disengage the plug block 14 from the slot 13, and then slide the extension frame 3 to a certain height, and then reinsert the plug block 14 into the slot 13. When the two ends of the two drawers 5 are completely fitted together, temporary storage of the material can be achieved.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-cylinder primary cleaning screen, comprising a primary cleaning screen body (1), wherein a feed inlet (18) is integrally formed at the top of the primary cleaning screen body (1), characterized in that: The surface of the feed port (18) is fixedly connected to a hopper (2), and both side surfaces of the hopper (2) are plugged with draw plates (5). Both side surfaces of the hopper (2) are slidably connected to two groups of clamping blocks (11), and the clamping blocks (11) are respectively pressed against both side surfaces of the draw plate (5) to limit the position of the draw plate (5). The top surface of the hopper (2) is slidably connected to an extension frame (3), and both side surfaces of the extension frame (3) are fixedly connected to a slide plate (12). Both sides of the top of the hopper (2) are slidably connected to inserting blocks (14), and the inserting blocks (14) are plugged into the surface of the slide plate (12).

2. A double-drum primary cleaning screen according to claim 1, characterized in that: The surface of the hopper (2) is provided with a draw groove (6), the draw groove (6) is a "U"-shaped groove, the draw plate (5) is plugged into the two sides of the surface of the draw groove (6), the draw plate (5) is a "T"-shaped plate structure, and the two side surfaces of the draw plate (5) are provided with a plurality of slots (7) distributed in an array, the slots (7) are square slots.

3. A double-drum primary cleaning screen according to claim 2, characterized in that: The surfaces of both sides of the hopper (2) are provided with limiting grooves (8), the limiting grooves (8) are T-shaped grooves, one end of the limiting grooves (8) is fixedly connected to a rubber block (9), the other end of the rubber block (9) is fixedly connected to a limiting block (10), the limiting block (10) is a T-shaped block structure, the surface of the clamping block (11) is fixedly connected to one end of the limiting block (10), the clamping block (11) is a square plate structure, and one end of the clamping block (11) is plugged into the surface of the clamping groove (7).

4. A double-drum primary cleaning screen according to claim 1, characterized in that: The inner walls of the two side surfaces of the hopper (2) are provided with slide grooves (4), the slide plate (12) is slidably connected to the surface of the slide groove (4), the slide plate (12) is in a square plate structure, and the surface of the slide plate (12) is provided with a plurality of slots (13) distributed in parallel, and the slots (13) are in the form of square grooves.

5. A double-drum primary cleaning screen according to claim 4, characterized in that: The surfaces of both sides of the hopper (2) are provided with grooves (15), the slide groove (4) and the grooves (15) are connected, and the surface of the grooves (15) is plugged with an insert block (14), the insert block (14) is in a square block structure, and one end of the insert block (14) is plugged into the surface of the slot (13) to brake the extension frame (3).

6. A double-drum primary cleaning screen according to claim 4, characterized in that: A rubber groove (16) is formed on the surface of one end of the plug block (14) away from the slot (13). The rubber groove (16) is a square groove. A rubber strip (17) is fixedly connected to the center of the surface of the rubber groove (16). Both ends of the rubber strip (17) are fixedly connected to the surface of the hopper (2).

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