Recycled concrete aggregate processing device

Abstract

The utility model relates to the technical field of concrete aggregate processing, and discloses a recycled concrete aggregate processing device which comprises a device body, a feeding hopper, a first smashing roller assembly, a first smashing roller, a first wedge-shaped groove, large smashing teeth, a first limiting groove, a first limiting mechanism, a hollow cavity, a spiral groove and a fixing bolt. When aggregate enters the device body through the feeding hopper, the two first crushing roller assemblies can extrude, crush and process the aggregate through a plurality of large crushing teeth, and the large crushing teeth can be slidably installed in the first wedge-shaped grooves and can be clamped in a matched mode through the first wedge-shaped grooves; and the first limiting mechanisms on the two sides of the large crushing teeth are located in the first limiting grooves in a limiting butt joint mode, at the moment, the fixing bolts and the screw grooves in the large crushing teeth are subjected to threaded locking and disassembly in the same way, and therefore when the single large crushing teeth are maintained, the large crushing teeth can be directly disassembled in a sliding mode and reinstalled.

Description

Technical Field

[0001] This utility model relates to the field of concrete aggregate processing technology, and in particular to a recycled concrete aggregate processing device. Background Technology

[0002] Recycled concrete refers to new concrete made by crushing, cleaning, and grading waste concrete blocks, mixing them with aggregates in a certain proportion, partially or completely replacing natural aggregates such as sand and gravel, and then adding cement and water. In the process of recycling concrete processing, the recycled concrete aggregates need to be crushed by a crushing device.

[0003] Existing crushing devices use external crushing teeth on the crushing roller to crush aggregates after they enter. However, these crushing teeth wear down under prolonged stress. Since the crushing teeth and crushing roller are rigidly connected, the entire crushing roller needs to be disassembled for maintenance, which increases maintenance time and affects efficiency. Therefore, we propose a recycled concrete aggregate processing device. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art and provide a device for processing recycled concrete aggregates.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a recycled concrete aggregate processing device, comprising a device body, a feeding hopper, and a first crushing roller assembly. The first crushing roller assembly consists of a first crushing roller, a first wedge-shaped groove, and large crushing teeth. The first wedge-shaped groove is equidistantly arranged around the central axis of the first crushing roller relative to its periphery. The large crushing teeth are slidably engaged inside the first wedge-shaped groove. First limiting grooves are provided on both sides of the first wedge-shaped groove. First limiting mechanisms are integrally formed on both sides of the large crushing teeth corresponding to the two sets of first limiting grooves. A hollow cavity is provided inside the first crushing roller corresponding to the position of each set of large crushing teeth. A threaded groove penetrating the large crushing teeth is provided on the side of the hollow cavity near the large crushing teeth. A fixing bolt is threadedly connected inside the threaded groove.

[0006] Preferably, the inside of the first wedge-shaped groove is a trapezoidal hollow groove. When the large crushing tooth is installed relative to the inside of the first wedge-shaped groove, the large crushing tooth is in a limited and locked state through the first wedge-shaped groove. The two sides of the large crushing tooth are slidably limited and engaged with the first limiting groove through the first limiting mechanism.

[0007] Preferably, when the fixing bolt is threaded into the screw groove inside the large crushing tooth, the large crushing tooth is locked relative to the inside of the first wedge groove by the fixing bolt.

[0008] Preferably, a buffer pad is provided on the threaded part of the fixing bolt surface, and the buffer pad itself has deformation characteristics.

[0009] Preferably, when the fixing bolt and the buffer pad are connected to the threaded groove inside the large crushing tooth, the large crushing tooth is in an adjustable buffer state through the buffer pad on the surface of the fixing bolt.

[0010] Preferably, two sets of second crushing roller assemblies are rotatably arranged at the lower interior of the main body of the device. A guide cover is fixedly installed on the inner side of the main body of the device between the first crushing roller assembly and the second crushing roller assembly. A material guide groove for dropping material is opened at the bottom of the inner side of the guide cover.

[0011] Preferably, the second crushing roller assembly consists of a second crushing roller, a second wedge-shaped groove, and small crushing teeth. The second wedge-shaped groove is equidistantly arranged around the central axis of the second crushing roller relative to its outer periphery. The small crushing teeth are slidably engaged inside the second wedge-shaped groove. The interior of the second wedge-shaped groove has second limiting grooves on both sides. The small crushing teeth have second limiting mechanisms integrally formed on both sides of the two sets of second limiting grooves. One end of the second crushing roller is provided with a fixed end cap. The outer periphery of one end of the second crushing roller and the inner side of the fixed end cap are both provided with mutually engaging threads.

[0012] Preferably, when the fixed end cap is connected to the outer periphery of one end of the second crushing roller by a thread, the fixed end cap is in a limiting and locking state for the small crushing teeth inside the second wedge groove.

[0013] Preferably, the device has a discharge trough on one side of its main body, and a conveying platform for transporting and guiding the crushed material is provided inside the discharge trough.

[0014] This utility model provides a device for processing recycled concrete aggregates. It has the following beneficial effects:

[0015] 1. In this recycled concrete aggregate processing device, when the aggregate enters the main body of the device through the feed hopper, two sets of first crushing roller assemblies can crush the aggregate through multiple sets of large crushing teeth. During the initial installation, the large crushing teeth can be slidably installed inside the first wedge groove, and the large crushing teeth can be engaged and locked through the first wedge groove. The first limiting mechanisms on both sides of the large crushing teeth can be limited and connected inside the first limiting groove. Then, the fixing bolts are threadedly connected to the threaded groove inside the large crushing teeth to lock the threads of the large crushing teeth themselves. Disassembly is the same. In this way, when maintaining individual large crushing teeth, they can be directly slidably disassembled and reinstalled, so that the first crushing roller assembly can be quickly reused, thereby improving the processing efficiency of the device.

[0016] 2. In this recycled concrete aggregate processing device, a second crushing roller assembly is provided at the bottom of the first crushing roller assembly. After the aggregate is initially crushed and refined by the two sets of first crushing roller assemblies, the aggregate can fall into the two sets of second crushing roller assemblies through the guide groove inside the guide cover. The small crushing teeth on the outside of the second crushing roller assembly are slidably installed inside the second wedge-shaped groove, and the volume of the small crushing teeth is smaller than that of the large crushing teeth. In this way, the two sets of second crushing roller assemblies can perform secondary refinement of the initially crushed aggregate through the small crushing teeth, without the need to repeatedly collect the aggregate and put it back into the crushing. The refined aggregate can be conveyed through the conveying platform, thereby improving the processing efficiency. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This utility model Figure 1 Enlarged view of A in the middle;

[0021] Figure 3 This is a partial schematic diagram of the first crushing roller of this utility model;

[0022] Figure 4 This is a partial schematic diagram of the fixing bolt of this utility model;

[0023] Figure 5 This utility model Figure 4 Enlarged view of B in the middle;

[0024] Figure 6 This utility model Figure 1 Enlarged view of C;

[0025] Figure 7 This is a partial schematic diagram of the second crushing roller of this utility model.

[0026] Legend:

[0027] 1. Main body of the device; 2. Feed hopper; 3. First crushing roller assembly; 4. First crushing roller; 5. First wedge groove; 6. Large crushing tooth; 7. First limiting groove; 8. First limiting mechanism; 9. Hollow cavity; 10. Threaded groove; 11. Fixing bolt; 12. Buffer pad; 13. Second crushing roller assembly; 14. Guide cover; 15. Guide groove; 16. Second crushing roller; 17. Second wedge groove; 18. Small crushing tooth; 19. Second limiting groove; 20. Second limiting mechanism; 21. Fixed end cap; 22. Thread; 23. Discharge chute; 24. Conveying platform. Detailed Implementation

[0028] 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.

[0029] Example: A device for processing recycled concrete aggregate, such as Figures 1-7As shown, the device includes a main body 1, a feed hopper 2, and a first crushing roller assembly 3. The first crushing roller assembly 3 consists of a first crushing roller 4, a first wedge-shaped groove 5, and large crushing teeth 6. The first wedge-shaped groove 5 is equidistantly arranged around the central axis of the first crushing roller 4 relative to its outer periphery. The large crushing teeth 6 are slidably engaged inside the first wedge-shaped groove 5. First limiting grooves 7 are provided on both sides of the first wedge-shaped groove 5. First limiting mechanisms 8 are integrally formed on both sides of the large crushing teeth 6 corresponding to the two sets of first limiting grooves 7. A hollow cavity 9 is provided inside the first crushing roller 4 corresponding to the position of each set of large crushing teeth 6. A threaded groove 10 is provided inside the hollow cavity 9 near the large crushing teeth 6, penetrating the large crushing teeth 6. A fixing bolt 11 is threaded inside the threaded groove 10. A buffer pad 12 is fixedly provided on the threaded part of the fixing bolt 11. The buffer pad 12 has deformation characteristics. Two sets of second crushing roller assemblies 13 are rotatably arranged inside the lower part of the main body 1. A guide cover 14 is fixedly installed on the inner side of the main body 1 between the first crushing roller assembly 3 and the second crushing roller assembly 13. A material guide groove 15 for dropping material is opened at the bottom of the inner side of the guide cover 14. The second crushing roller assembly 13 is composed of a second crushing roller 16, a second wedge groove 17, and small crushing teeth 18. The second wedge groove 17 is equidistantly arranged around the outer periphery of the second crushing roller 16 along the central axis of the second crushing roller 16. The small crushing teeth 18 are slidably engaged inside the second wedge groove 17. A second limiting groove 19 is opened on both sides of the inner side of the second wedge groove 17. A second limiting mechanism 20 is integrally formed on both sides of the small crushing teeth 18 corresponding to the two sets of second limiting grooves 19. A fixed end cap 21 is provided at one end of the second crushing roller 16. A thread 22 that fits between the outer periphery of one end of the second crushing roller 16 and the inner side of the fixed end cap 21 is opened. A discharge groove 23 is opened on one side of the main body 1. A transmission platform 24 for conveying and guiding the crushed material is provided inside the discharge groove 23.

[0030] Furthermore, the interior of the first wedge-shaped groove 5 is a trapezoidal hollow groove. When the large crushing tooth 6 is installed relative to the interior of the first wedge-shaped groove 5, the large crushing tooth 6 is in a limited and locked state through the first wedge-shaped groove 5. The two sides of the large crushing tooth 6 are slidably limited and engaged with the first limiting groove 7 through the first limiting mechanism 8.

[0031] Furthermore, when the fixing bolt 11 is threadedly connected to the threaded groove 10 inside the large crushing tooth 6, the large crushing tooth 6 is locked relative to the inside of the first wedge groove 5 by the fixing bolt 11.

[0032] Furthermore, when the fixing bolt 11 and the buffer pad 12 are threadedly connected to the screw groove 10 inside the large crushing tooth 6, the large crushing tooth 6 is in an adjustable buffer state through the buffer pad 12 on the surface of the fixing bolt 11.

[0033] Furthermore, when the fixed end cap 21 is connected to the outer periphery of one end of the second crushing roller 16 via the thread 22, the fixed end cap 21 is in a limiting and locking state for the small crushing teeth 18 inside the second wedge groove 17.

[0034] The working principle of this utility model:

[0035] When the aggregate enters the main body 1 of the device through the feed hopper 2, the two sets of first crushing roller assemblies 3 can crush the aggregate by extrusion through multiple sets of large crushing teeth 6. During the initial installation, the large crushing teeth 6 can be slidably installed inside the first wedge groove 5. The large crushing teeth 6 can be engaged and locked through the first wedge groove 5, and the first limiting mechanisms 8 on both sides of the large crushing teeth 6 can be limited and connected inside the first limiting groove 7. Then, the fixing bolts 11 are threadedly connected to the screw grooves 10 inside the large crushing teeth 6 to lock the threads of the large crushing teeth 6 themselves. Disassembly is the same. In this way, when maintaining individual large crushing teeth 6, the large crushing teeth 6 can be directly slidably disassembled and reinstalled, so that the first crushing roller assembly 3 can be quickly reused, thereby improving the processing efficiency of the device.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A recycled concrete aggregate processing device, comprising a main body (1), a feeding hopper (2), and a first crushing roller assembly (3), characterized in that: The first crushing roller assembly (3) consists of a first crushing roller (4), a first wedge groove (5), and a large crushing tooth (6). The first wedge groove (5) is equidistantly arranged around the central axis of the first crushing roller (4) relative to the periphery of the first crushing roller (4). The large crushing tooth (6) is slidably engaged inside the first wedge groove (5). The first wedge groove (5) has a first limiting groove (7) on both sides. The large crushing tooth (6) has a first limiting mechanism (8) integrally formed on both sides of the two sets of first limiting grooves (7). The first crushing roller (4) has a hollow cavity (9) at the position of each set of large crushing teeth (6). The hollow cavity (9) has a threaded groove (10) that penetrates the large crushing tooth (6) on the side close to the large crushing tooth (6). The threaded groove (10) is threaded with a fixing bolt (11).

2. The recycled concrete aggregate processing device according to claim 1, characterized in that: The first wedge groove (5) has a trapezoidal hollow groove inside. When the large crushing tooth (6) is installed relative to the inside of the first wedge groove (5), the large crushing tooth (6) is in a limited locking state through the first wedge groove (5). The two sides of the large crushing tooth (6) are slidably limited and cooperated with the first limiting groove (7) through the first limiting mechanism (8).

3. The recycled concrete aggregate processing device according to claim 2, characterized in that: When the fixing bolt (11) is threadedly connected to the screw groove (10) inside the large crushing tooth (6), the large crushing tooth (6) is locked relative to the inside of the first wedge groove (5) by the fixing bolt (11).

4. The recycled concrete aggregate processing device according to claim 3, characterized in that: The fixing bolt (11) has a buffer pad (12) fixedly installed on its own threaded part, and the buffer pad (12) itself has deformation characteristics.

5. The recycled concrete aggregate processing device according to claim 4, characterized in that: When the fixing bolt (11) and the buffer pad (12) are threadedly connected to the screw groove (10) inside the large crushing tooth (6), the large crushing tooth (6) is in an adjustable buffer state through the buffer pad (12) on the surface of the fixing bolt (11).

6. The recycled concrete aggregate processing device according to claim 1, characterized in that: Two sets of second crushing roller assemblies (13) are rotatably arranged inside the lower part of the main body (1) of the device. A guide cover (14) is fixedly installed on the inner side of the main body (1) between the first crushing roller assembly (3) and the second crushing roller assembly (13). A material guide groove (15) for dropping material is opened at the bottom of the inner side of the guide cover (14).

7. A recycled concrete aggregate processing device according to claim 6, characterized in that: The second crushing roller assembly (13) consists of a second crushing roller (16), a second wedge groove (17), and small crushing teeth (18). The second wedge groove (17) is equidistantly arranged around the central axis of the second crushing roller (16) relative to the periphery of the second crushing roller (16). The small crushing teeth (18) are slidably engaged inside the second wedge groove (17). The second wedge groove (17) has second limiting grooves (19) on both sides. The small crushing teeth (18) have second limiting mechanisms (20) integrally formed on both sides of the two sets of second limiting grooves (19). The second crushing roller (16) has a fixed end cap (21) at one end. The periphery of the second crushing roller (16) and the inner side of the fixed end cap (21) are both provided with threads (22) that fit each other.

8. A recycled concrete aggregate processing device according to claim 7, characterized in that: When the fixed end cap (21) is connected to the outer periphery of one end of the second crushing roller (16) by the thread (22), the fixed end cap (21) is in a limited locking state for the small crushing teeth (18) inside the second wedge groove (17).

9. A recycled concrete aggregate processing device according to claim 6, characterized in that: The main body (1) of the device has a discharge trough (23) on one side, and a transmission platform (24) for conveying and guiding the crushed material is provided inside the discharge trough (23).

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