Concrete raw material crushing and mixing device

Abstract

The utility model relates to the technical field of concrete raw materials, and discloses a concrete raw material crushing and mixing device which comprises a mixing box, the top of the mixing box is fixedly communicated with a crushing box, two crushing rollers are rotatably arranged in the crushing box, one end of each crushing roller is fixedly provided with a gear, and the two gears are meshed with each other. A first motor is fixedly arranged on one side of the crushing box, the output end of the first motor is fixedly connected with one of the crushing rollers, two material guide plates are fixedly arranged in the crushing box, when the crushing device is used, raw materials are poured into the material mixing box, and the raw materials can be guided between the two crushing rollers through the material guide plates, so that the raw materials are crushed; and dust and fragments generated during crushing can be shielded through a first baffle, meanwhile, crushed raw materials can be screened through a filtering plate, the screened raw materials can fall into the mixing box, part of large raw materials can fall into a collecting box to be collected in a centralized mode, and secondary crushing is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of concrete raw material technology, specifically a concrete raw material crushing and mixing device. Background Technology

[0002] Concrete is an engineering composite material made by mixing cementitious materials, coarse and fine aggregates, and water in a certain proportion. Its main raw materials include cement, water, crushed stone, and sand, each of which plays an important role in concrete. Concrete is widely used in civil engineering, such as in the structural parts of buildings like beams, slabs, and columns. Its high strength and durability make it an indispensable material in modern construction. However, crushing concrete raw materials generates a large amount of dust, and some fragments may fly out, causing environmental pollution and hindering workers' operations. Therefore, a concrete raw material crushing and mixing device is proposed. Utility Model Content

[0003] The purpose of this utility model is to provide a concrete raw material crushing and mixing device to solve the problems mentioned in the background art, which are that a large amount of dust is generated when crushing concrete raw materials, and some fragments may be scattered, causing environmental pollution and hindering the operation of workers.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a concrete raw material crushing and mixing device, comprising a mixing box, a crushing box fixedly connected to the top of the mixing box, two crushing rollers rotatably arranged inside the crushing box, a gear fixedly arranged at one end of each of the two crushing rollers and the two gears meshing with each other, a first motor fixedly arranged on one side of the crushing box and the output end of the first motor fixedly connected to one of the crushing rollers, two guide plates fixedly arranged inside the crushing box, two first baffles hingedly connected inside the crushing box and the first baffles being above the guide plates, torsion springs arranged at both ends of the two first baffles and the two ends of the torsion springs being fixedly connected to the first baffles and the crushing box respectively, two second baffles fixedly arranged on the inner wall of the crushing box, a filter plate placed between the tops of the two second baffles, a collection box arranged on one side of the crushing box and the collection box being located at the top of the mixing box, a stirring structure arranged inside the mixing box, and a box door arranged on one side of the mixing box.

[0005] Preferably, the stirring structure includes a transmission rod rotatably mounted inside the mixing tank. Multiple stirring rods are fixedly mounted on the outer side of the transmission rod. A first pulley is fixedly mounted at one end of the transmission rod. A second motor is fixedly mounted on one side of the mixing tank via a support, and the output end of the second motor is fixedly connected to the transmission rod. Two reciprocating double-acting screws are rotatably mounted inside the mixing tank. A second pulley is fixedly mounted at one end of each of the two reciprocating double-acting screws. Belts are connected to the first pulley and the two second pulleys respectively. Connecting blocks are threadedly connected to the outer sides of each of the two reciprocating double-acting screws. A scraper is fixedly mounted on one side of the connecting block and fits against the inner wall of the mixing tank. Two fixing plates are fixedly mounted on one side of the scraper.

[0006] Preferably, a discharge chute is provided on one side of the mixing box.

[0007] Preferably, the connecting block has a threaded hole inside, and the size of the reciprocating bidirectional screw is adapted to the threaded hole.

[0008] Preferably, the scraper is processed into an L-shape and fits against the inner wall of the mixing box, while the fixing plate on one side of the scraper is processed into a triangle.

[0009] Preferably, the top four sides of the collection box are machined into diagonal lines.

[0010] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0011] This invention, by setting up a mixing box, a crushing box, a crushing roller, a first motor, and a guide plate, allows for the mixing of concrete. Raw materials are poured into the mixing box, crushed by the crushing roller, and the crushed material is then screened through a filter plate before falling back into the mixing box. A second motor is then activated, and a stirring rod mixes the materials. Simultaneously, a fixed plate on one side of the scraper agitates the materials on both sides, thereby improving mixing efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 This is a side view of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the mixing box of this utility model;

[0016] Figure 4 This is a schematic diagram of the connection structure between the first baffle and the mixing box of this utility model;

[0017] Figure 5 For the present utility model Figure 4 A magnified structural diagram of A in the diagram.

[0018] Explanation of reference numerals in the attached drawings: 1. Mixing box; 2. Crushing box; 3. Crushing roller; 4. Gear; 5. First motor; 6. Guide plate; 7. First baffle; 8. Torsion spring; 9. Second baffle; 10. Filter plate; 11. Collection box; 12. Transmission rod; 13. Stirring rod; 14. First pulley; 15. Second motor; 16. Reciprocating double-acting screw; 17. Second pulley; 18. Belt; 19. Connecting block; 20. Scraper; 21. Fixing plate; 22. Box door. Detailed Implementation

[0019] 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.

[0020] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce. Example

[0021] In existing technologies, crushing concrete raw materials generates a large amount of dust, and some fragments may fly out, causing environmental pollution and hindering workers' operations.

[0022] Please see Figure 1-5This utility model provides a technical solution: a concrete raw material crushing and mixing device, including a mixing box 1, a crushing box 2 fixedly connected to the top of the mixing box 1, two crushing rollers 3 rotatably arranged inside the crushing box 2, a gear 4 fixedly arranged at one end of each of the two crushing rollers 3 and the two gears 4 meshing with each other, a first motor 5 fixedly arranged on one side of the crushing box 2 and the output end of the first motor 5 fixedly connected to one of the crushing rollers 3, two guide plates 6 fixedly arranged inside the crushing box 2, two first baffles 7 hingedly connected inside the crushing box 2 and the first baffles 7 being above the guide plates 6, torsion springs 8 arranged at both ends of the two first baffles 7 and the two ends of the torsion springs 8 being fixedly connected to the first baffles 7 and the crushing box 2 respectively, and the crushing box 2... Two second baffles 9 are fixedly installed on the inner wall, and a filter plate 10 is placed between the tops of the two second baffles 9. A collection box 11 is set on one side of the crushing box 2 and the collection box 11 is located on top of the mixing box 1. The mixing box 1 is equipped with a mixing structure inside, and a box door 22 is set on one side of the mixing box 1. When crushing and mixing concrete, the raw materials are poured into the interior of the mixing box 1. The raw materials are guided between the two crushing rollers 3 through the guide plate 6 for crushing. The dust and fragments generated by crushing are blocked by the first baffle 7. At the same time, the crushed raw materials are screened through the filter plate 10. The screened raw materials fall into the interior of the mixing box 1. Some larger raw materials fall into the collection box 11 for centralized collection, which facilitates secondary crushing.

[0023] The mixing structure includes a transmission rod 12, which is rotatably mounted inside the mixing tank 1. Multiple mixing rods 13 are fixedly mounted on the outer side of the transmission rod 12. A first pulley 14 is fixedly mounted at one end of the transmission rod 12. A second motor 15 is fixedly mounted on one side of the mixing tank 1 via a support, and the output end of the second motor 15 is fixedly connected to the transmission rod 12. Two reciprocating double-acting screws 16 are rotatably mounted inside the mixing tank 1. A second pulley 17 is fixedly mounted at one end of each of the two reciprocating double-acting screws 16. Belts 18 are connected to the first pulley 14 and the two second pulleys 17 respectively. Connecting blocks 19 are threadedly connected to the outer sides of each of the two reciprocating double-acting screws 16. A scraper 20 is fixedly installed on one side of the 19 and is in contact with the inner wall of the mixing box 1. Two fixed plates 21 are fixedly installed on one side of the scraper 20. The material crushed by the crushing box 2 will fall into the interior of the mixing box 1. Then the second motor 15 is started. The second motor 15 drives the reciprocating double screw 16 and the transmission rod 12 to rotate simultaneously. The stirring rod 13 on the outside of the transmission rod 12 will mix and stir the material. At the same time, the scraper 20 on the outside of the reciprocating double screw 16 will reciprocate to scrape the inner wall of the mixing box 1 to prevent the material from adhering to the inner wall of the mixing box 1. Meanwhile, the fixed plate 21 on one side of the scraper 20 will turn the material on both sides, thereby improving the mixing efficiency.

[0024] A discharge chute is provided on one side of the mixing box 1 to facilitate the removal of the mixed raw materials.

[0025] The connecting block 19 has a threaded hole inside, and the size of the reciprocating double screw 16 is adapted to the threaded hole. By rotating the reciprocating double screw 16, the scraper 20 on one side of the connecting block 19 is moved.

[0026] The scraper 20 is processed into an L-shape and is attached to the inner wall of the mixing box 1. Meanwhile, the fixing plate 21 on one side of the scraper 20 is processed into a triangle. The scraper 20 scrapes off the material adhering to the inner wall of the mixing box 1.

[0027] The top four sides of the collection box 11 are all machined with bevels to facilitate the introduction of crushed materials into the collection box 11.

[0028] The working principle or structural principle is as follows: When crushing and mixing concrete, the raw materials are poured into the mixing tank 1. The raw materials are squeezed by the first baffle 7 and guided between the two crushing rollers 3 through the guide plate 6 for crushing. The first baffle 7 is reset by the torsion springs 8 on both sides, thus blocking the dust and fragments generated during crushing. At the same time, the crushed raw materials are screened by the filter plate 10. The screened raw materials fall into the mixing tank 1. Larger raw materials fall into the collection box 11 for centralized collection, which is convenient for secondary crushing. Then, the second motor 15 is started. The second motor 15 drives the reciprocating double screw 16 and the transmission rod 12 to rotate simultaneously. The stirring rod 13 on the outside of the transmission rod 12 mixes and stirs the materials. At the same time, the scraper 20 on the outside of the reciprocating double screw 16 moves back and forth to scrape the inner wall of the mixing tank 1, preventing the materials from adhering to the inner wall of the mixing tank 1. At the same time, the fixing plate 21 on one side of the scraper 20 flips the materials on both sides, thereby improving the mixing efficiency.

[0029] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A concrete raw material crushing and mixing device comprising a mixing box (1), characterized in that: The top of the mixing box (1) is fixedly connected with a crushing box (2), two crushing rollers (3) are rotatably arranged in the crushing box (2), one end of each of the two crushing rollers (3) is fixedly provided with a gear (4), the two gears (4) are meshed with each other, a first motor (5) is fixedly arranged on one side of the crushing box (2), the output end of the first motor (5) is fixedly connected with one of the crushing rollers (3), two guide plates (6) are fixedly arranged in the crushing box (2), two first baffles (7) are hingedly connected in the crushing box (2) and above the guide plates (6), torsion springs (8) are arranged at both ends of each of the two first baffles (7) and fixedly connected with the first baffles (7) and the crushing box (2), respectively, two second baffles (9) are fixedly arranged on the inner wall of the crushing box (2), a filter plate (10) is arranged between the top portions of the two second baffles (9), a collecting box (11) is arranged on one side of the crushing box (2) and above the mixing box (1), a stirring structure is arranged in the mixing box (1), and a box door (22) is arranged on one side of the mixing box (1).

2. The concrete raw material crushing and mixing device according to claim 1, characterized in that: The stirring structure comprises a transmission rod (12), the transmission rod (12) is rotatably arranged in the mixing box (1), a plurality of stirring rods (13) are fixedly arranged on the outer side of the transmission rod (12), a first belt pulley (14) is fixedly arranged at one end of the transmission rod (12), a second motor (15) is fixedly arranged on one side of the mixing box (1) through a support, the output end of the second motor (15) is fixedly connected with the transmission rod (12), two reciprocating bidirectional screws (16) are rotatably arranged in the mixing box (1), a second belt pulley (17) is fixedly arranged at one end of each of the two reciprocating bidirectional screws (16), a belt (18) is connected between the first belt pulley (14) and the two second belt pulleys (17), respectively, a connecting block (19) is threadedly connected to the outer side of each of the two reciprocating bidirectional screws (16), a scraper (20) is fixedly arranged on one side of the connecting block (19) and abuts against the inner wall of the mixing box (1), and two fixed plates (21) are fixedly arranged on one side of the scraper (20).

3. The concrete raw material crushing and mixing device according to claim 1, characterized in that: A discharging groove is formed in one side of the mixing box (1).

4. The concrete raw material crushing and mixing device according to claim 2, characterized in that: A threaded hole is formed in the connecting block (19), and the size of the reciprocating bidirectional screw (16) is matched with the threaded hole.

5. The concrete raw material crushing and mixing device according to claim 2, characterized in that: The scraper (20) is processed into an L shape, the scraper (20) abuts against the inner wall of the mixing box (1), and the fixed plates (21) on one side of the scraper (20) are processed into a triangular shape.

6. The concrete raw material crushing and mixing device according to claim 1, characterized in that: The top of the collecting box (11) is processed into an inclined line on four sides.

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