A construction waste recycling and processing device

Abstract

This utility model relates to the field of construction equipment and discloses a waste recycling and processing device for construction, including a crushing chamber. The crushing chamber has a crushing cavity on its inner side, and a crushing mechanism is provided inside the crushing cavity. The crushing mechanism includes a fast-moving jaw and a slow-moving jaw, both of which are slidably mounted on the inner wall of the crushing cavity. Four bearing seats are fixedly installed on the top of the crushing chamber. A single fast-moving eccentric shaft is rotatably mounted in the two bearing seats on the left side, and a single slow-moving eccentric shaft is rotatably mounted in the two bearing seats on the right side. This utility model has the following advantages and effects: it can improve crushing efficiency; at the same time, the shearing force generated by the speed difference between the fast-moving jaw and the slow-moving jaw can assist in cutting thin steel bars, reducing steel bar entanglement and blockage, thus improving crushing efficiency and enhancing the material adaptability of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of construction equipment technology, and in particular to a waste recycling and processing device for construction. Background Technology

[0002] Construction waste recycling and processing equipment is a specialized device that transforms waste materials such as concrete, steel bars, and wood generated during construction into reusable raw materials (such as recycled aggregates and metal particles) through mechanical processes such as crushing, screening, and sorting. This equipment achieves waste reduction and resource recovery, and features convenient mobility, high processing efficiency, and low energy consumption. It effectively reduces construction waste emissions and contributes to green construction and the development of a circular economy.

[0003] In related technologies, when recycling construction waste, jaw crushers are often used to crush cement blocks and other waste materials. However, most existing jaw crushers are single-jaw plate structures. During the crushing stroke, the material is subjected to force in a single direction and cannot crush concrete blocks containing reinforcing bars, which can easily lead to reinforcing bar entanglement. Furthermore, the single jaw plate only applies force on one side, requiring multiple compressions to crush the material, resulting in a slow processing speed and a tendency for material blockage due to uneven force distribution.

[0004] Therefore, we propose a construction waste recycling and processing device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a waste recycling and processing device for construction, which has the effects of improving crushing efficiency and production capacity and enhancing material adaptability.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a waste recycling and processing device for construction, comprising a crushing chamber, a crushing cavity is provided on the inner side of the crushing chamber, a crushing mechanism is provided on the inner side of the crushing cavity, the crushing mechanism includes a fast moving jaw and a slow moving jaw, both of which are slidably installed on the inner wall of the crushing cavity; four bearing seats are fixedly installed on the top of the crushing chamber, the same fast eccentric shaft is rotatably installed in the two bearing seats on the left side, and the same slow eccentric shaft is rotatably installed in the two bearing seats on the right side.

[0007] A further feature of this invention is that two covers are fixedly installed on the top of the crushing chamber, and four bearing seats are located inside the corresponding covers.

[0008] By adopting the above technical solution, the bearing housing can be protected from damage caused by construction waste.

[0009] A further feature of this invention is that the same feed hopper is fixedly installed on the top of both covers.

[0010] By adopting the above technical solution, it is easy to pour construction waste into the equipment.

[0011] A further feature of this invention is that a discharge port is provided on one side of the crushing chamber, and a conveyor belt is provided on the inner side of the discharge port.

[0012] By adopting the above technical solution, crushed materials can be transported by conveyor belt.

[0013] A further feature of this invention is that a protective shell is fixedly installed on the right side of the crushing chamber, a motor slot is provided on the inner side of the protective shell, a servo motor is fixedly installed on the inner side of the motor slot, and a double-row drive wheel is rotatably installed on one side of the protective shell. The output shaft of the servo motor is fixedly connected to the double-row drive wheel.

[0014] By adopting the above technical solution, a servo motor can drive the double-row drive wheels to rotate.

[0015] A further feature of this invention is that a fast wheel is fixedly sleeved on the right end of the fast eccentric shaft, and the same fast belt is wound between the fast wheel and the double-row drive wheels. The fast moving jaw is fixedly sleeved on the fast eccentric shaft.

[0016] By adopting the above technical solution, the high-frequency motion characteristics of the fast-moving jaw can be precisely controlled, complementing the slow-moving jaw and improving crushing efficiency and throughput.

[0017] A further feature of this invention is that a slow-speed wheel is fixedly sleeved on the right end of the slow-speed eccentric shaft, and the same slow-speed belt is wound between the slow-speed wheel and the double-row drive wheels. The slow-moving jaw is fixedly sleeved on the slow-speed eccentric shaft, and the diameter of the slow-speed wheel is larger than that of the fast-speed wheel.

[0018] By adopting the above technical solution, a speed difference is generated by the difference in diameter between the slow wheel and the fast wheel. The shearing force generated by the speed difference can help cut thin steel bars and reduce steel bar entanglement and blockage.

[0019] A further feature of this invention is that a fast flywheel is fixedly fitted onto the other end of the fast eccentric shaft, and the weight and diameter of the fast flywheel are the same as those of the fast wheel.

[0020] By adopting the above technical solution, the parameters of the fast flywheel and the fast wheel are consistent, which can make the load on both sides more balanced and avoid power slippage or energy waste caused by the difference in inertia on both sides.

[0021] A further feature of this invention is that a slow-speed flywheel is fixedly fitted onto the other end of the slow-speed eccentric shaft, and the weight and diameter of the slow-speed flywheel are the same as those of the slow-speed wheel.

[0022] By adopting the above technical solution, the eccentric shaft will generate centrifugal force due to uneven mass distribution when rotating, which may cause equipment vibration. The design of the slow flywheel and the slow wheel with the same weight and diameter can balance the generated centrifugal force through symmetrical arrangement, reduce the wear of vibration on the crushing chamber and bearing housing, and reduce operating noise.

[0023] A further feature of this invention is that the crushing mechanism includes two upper jaw plates and two lower jaw plates, with upper jaw plates and lower jaw plates fixedly installed on the sides of the fast-moving jaw and the slow-moving jaw that are close to each other, and the two upper jaw plates being located above the corresponding lower jaw plates.

[0024] By adopting the above technical solution, the upper jaw plate has coarse teeth, which can better crush the material. Then, the lower jaw plate has fine teeth to crush the material, thereby improving the efficiency and speed of material processing.

[0025] This application includes at least one of the following beneficial technical effects: By utilizing a crushing mechanism composed of a fast-moving jaw and a slow-moving jaw, this application can improve crushing efficiency. At the same time, the speed difference between the fast-moving jaw and the slow-moving jaw changes the contact angle between the jaw plate and the material, so that the upper part of the crushing chamber coarsely crushes large pieces of material with a large biting angle, and the lower part finely crushes with a small biting angle, forming a "staged crushing" effect. This avoids the over-crushing of material in the lower part due to excessive compression in traditional designs. The shearing force generated by the speed difference can effectively crush steel bars, improving crushing efficiency and enhancing the material adaptability of the equipment. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural diagram of a construction waste recycling and processing device proposed in this utility model;

[0028] Figure 2 This is a three-dimensional structural breakdown diagram of a construction waste recycling and processing device proposed in this utility model;

[0029] Figure 3 This is a three-dimensional structural breakdown diagram of the fast wheel and slow wheel of a construction waste recycling and processing device proposed in this utility model.

[0030] Figure 4 This is a three-dimensional structural diagram of the crushing mechanism of a construction waste recycling and processing device proposed in this utility model;

[0031] Figure 5 This is a three-dimensional structural breakdown diagram of the crushing mechanism of a construction waste recycling and processing device proposed in this utility model.

[0032] In the diagram, 1. Crushing chamber; 2. Cover; 3. Feed hopper; 4. Conveyor belt; 5. Protective shell; 6. Servo motor; 7. Double-row drive wheel; 8. High-speed wheel; 9. High-speed belt; 10. Low-speed wheel; 11. Low-speed belt; 12. High-speed flywheel; 13. High-speed eccentric shaft; 14. High-speed jaw; 15. Low-speed flywheel; 16. Low-speed eccentric shaft; 17. Low-speed jaw; 18. Upper jaw plate; 19. Lower jaw plate; 20. Bearing housing. Detailed Implementation

[0033] Reference Figure 1-5 A waste recycling and processing device for construction materials includes a crushing chamber 1. A crushing cavity is formed on the inner side of the crushing chamber 1. A crushing mechanism is provided on the inner side of the crushing cavity. The crushing mechanism includes a fast-moving jaw 14 and a slow-moving jaw 17, both of which are slidably installed on the inner wall of the crushing cavity. Four bearing seats 20 are fixedly installed on the top of the crushing chamber 1. The same fast-moving eccentric shaft 13 is rotatably installed in the two bearing seats 20 on the left side, and the same slow-moving eccentric shaft 16 is rotatably installed in the two bearing seats 20 on the right side.

[0034] In this embodiment, two covers 2 are fixedly installed on the top of the crushing chamber 1, and four bearing seats 20 are located inside the corresponding covers 2, which can protect the bearing seats 20 and prevent construction waste from damaging them.

[0035] In this embodiment, the top of both covers 2 is fixedly equipped with the same feed hopper 3, which facilitates the pouring of construction waste into the equipment.

[0036] In this embodiment, a discharge port is provided on one side of the crushing chamber 1, and a conveyor belt 4 is provided inside the discharge port, through which the crushed material can be transported.

[0037] In this embodiment, a protective shell 5 is fixedly installed on the right side of the crushing chamber 1. A motor slot is provided on the inner side of the protective shell 5. A servo motor 6 is fixedly installed on the inner side of the motor slot. A double-row drive wheel 7 is rotatably installed on one side of the protective shell 5. The output shaft of the servo motor 6 is fixedly connected to the double-row drive wheel 7, and the double-row drive wheel 7 can be driven to rotate by the servo motor 6.

[0038] In this embodiment, a fast wheel 8 is fixedly sleeved on the right end of the fast eccentric shaft 13. The same fast belt 9 is wound between the fast wheel 8 and the double-row drive wheel 7. The fast jaw 14 is fixedly sleeved on the fast eccentric shaft 13, which can precisely control the high-frequency motion characteristics of the fast jaw 14, and complement the slow jaw 17 to improve crushing efficiency and throughput.

[0039] In this embodiment, a slow speed wheel 10 is fixedly sleeved on the right end of the slow speed eccentric shaft 16. The same slow speed belt 11 is wound around both the slow speed wheel 10 and the double-row drive wheel 7. The slow-moving jaw 17 is fixedly sleeved on the slow speed eccentric shaft 16. The diameter of the slow speed wheel 10 is larger than that of the fast speed wheel 8. The difference in diameter between the slow speed wheel 10 and the fast speed wheel 8 generates a speed difference. The shearing force generated by the speed difference can help cut the thin steel bars and reduce the entanglement and blockage of the steel bars.

[0040] In this embodiment, a fast flywheel 12 is fixedly sleeved on the other end of the fast eccentric shaft 13. The weight and diameter of the fast flywheel 12 are the same as those of the fast wheel 8. The parameters of the fast flywheel 12 and the fast wheel 8 are consistent, which can make the load on both sides more balanced and avoid power slippage or energy waste caused by the difference in inertia on both sides.

[0041] In this embodiment, a slow flywheel 15 is fixedly sleeved on the other end of the slow eccentric shaft 16. The weight and diameter of the slow flywheel 15 are the same as those of the slow wheel 10. When the eccentric shaft rotates, it will generate centrifugal force due to uneven mass distribution, which may cause vibration of the equipment. The design of the slow flywheel 15 having the same weight and diameter as the slow wheel 10 can balance the generated centrifugal force through symmetrical arrangement, reduce the wear of vibration on the crushing chamber 1 and bearing seat 20, and reduce operating noise.

[0042] In this embodiment, the crushing mechanism also includes two upper jaw plates 18 and two lower jaw plates 19. The upper jaw plates 18 and lower jaw plates 19 are fixedly installed on the side of the fast-moving jaw 14 and the slow-moving jaw 17 that are close to each other. The two upper jaw plates 18 are located above the corresponding lower jaw plates 19. The upper jaw plates 18 have coarse teeth, which can better crush the material. Then, the material is finely crushed by the fine teeth of the lower jaw plates 19, thereby improving the effect and speed of material processing.

[0043] Working Principle: When crushing construction waste, the equipment is started, and the construction waste is poured into the feed hopper 3. The construction waste enters the crushing chamber 1 from the feed hopper 3. At this time, the servo motor 6 starts, driving the double-row drive wheel 7 to rotate. The rotation of the double-row drive wheel 7 drives the fast belt 9 and the slow belt 11 to rotate. The rotation of the fast belt 9 and the slow belt 11 drives the fast wheel 8 and the slow wheel 10 to rotate respectively. The rotation of the fast wheel 8 drives the fast flywheel 12 and the fast eccentric shaft 13 to rotate, thereby driving the fast jaw 14 to perform high-frequency reciprocating motion. The slow wheel 10 drives the slow jaw 17 to perform high-frequency reciprocating motion through the slow flywheel 15 and the slow eccentric shaft 16. Since the diameter of the fast wheel 8 is smaller than that of the slow wheel 10, the fast jaw 14... A speed difference is generated between the fast-moving jaw 14 and the slow-moving jaw 17. The fast-moving jaw 14 and the slow-moving jaw 17 are both fixedly installed on the side that are close to each other. The upper jaw plate 18 has coarse teeth, which can better crush large pieces of material. The lower jaw plate 19 has fine teeth, which can further crush the material after coarse crushing, thereby improving the efficiency and speed of material processing. At the same time, when the fast-moving jaw 14 and the slow-moving jaw 17 move relative to each other at different speeds, the material is not only subjected to compressive stress, but also to shear force generated by the speed difference, which accelerates the material to break along the weak surface. This can better crush concrete blocks containing steel bars. The shear force generated by the speed difference can help cut the thin steel bars and reduce the entanglement and blockage of steel bars. The crushed material is discharged from the bottom of the crushing chamber and sent out by the conveyor belt 4 for subsequent processes.

[0044] The technological advancements achieved by this invention compared to existing technologies are: it can improve crushing efficiency. At the same time, the speed difference between the fast-moving jaw 14 and the slow-moving jaw 17 changes the contact angle between the jaw plate and the material, so that the upper part of the crushing chamber coarsely crushes large pieces of material with a large biting angle, while the lower part finely crushes them with a small biting angle, forming a "graded crushing" effect. This avoids the over-crushing of material in the lower part due to excessive compression in traditional designs. The shearing force generated by the speed difference can effectively crush steel bars, improving crushing efficiency and enhancing the material adaptability of the equipment.

[0045] The foregoing has provided a detailed description of a construction waste recycling and processing device provided in this application. Specific embodiments have been used to illustrate the principles and implementation methods of this application. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A construction waste recycling device characterized by comprising: It includes a crushing chamber (1), the crushing chamber (1) has a crushing cavity on its inner side, the crushing cavity has a crushing mechanism on its inner side, the crushing mechanism includes a fast moving jaw (14) and a slow moving jaw (17), the fast moving jaw (14) and the slow moving jaw (17) are slidably installed on the inner wall of the crushing cavity; The top of the crushing chamber (1) is fixedly equipped with four bearing seats (20). The same fast eccentric shaft (13) is rotatably installed in the two bearing seats (20) on the left side, and the same slow eccentric shaft (16) is rotatably installed in the two bearing seats (20) on the right side.

2. A construction waste recycling device according to claim 1, characterized in that: The top of the crushing chamber (1) is fixedly equipped with two covers (2), and four bearing seats (20) are located inside the corresponding covers (2).

3. The construction waste recycling device according to claim 1, characterized in that: The top of both caps (2) is fixedly equipped with the same feed hopper (3).

4. The construction waste recycling device according to claim 1, characterized in that: The crushing chamber (1) has a discharge port on one side, and a conveyor belt (4) is provided inside the discharge port.

5. The construction waste recycling and processing device according to claim 1, characterized in that: A protective shell (5) is fixedly installed on the right side of the crushing chamber (1). A motor slot is provided on the inner side of the protective shell (5). A servo motor (6) is fixedly installed on the inner side of the motor slot. A double-row drive wheel (7) is rotatably installed on one side of the protective shell (5). The output shaft of the servo motor (6) is fixedly connected to the double-row drive wheel (7).

6. The construction waste recycling and processing device according to claim 5, characterized in that: A fast wheel (8) is fixedly sleeved on the right end of the fast eccentric shaft (13). The same fast belt (9) is wound between the fast wheel (8) and the double-row drive wheel (7). The fast moving jaw (14) is fixedly sleeved on the fast eccentric shaft (13).

7. The construction waste recycling and processing device according to claim 6, characterized in that: A slow wheel (10) is fixedly sleeved on the right end of the slow eccentric shaft (16). The same slow belt (11) is wound between the slow wheel (10) and the double-row drive wheel (7). The slow jaw (17) is fixedly sleeved on the slow eccentric shaft (16). The diameter of the slow wheel (10) is larger than that of the fast wheel (8).

8. The construction waste recycling and processing device according to claim 7, characterized in that: The other end of the fast eccentric shaft (13) is fixedly fitted with a fast flywheel (12), the weight and diameter of which are the same as those of the fast wheel (8).

9. A construction waste recycling and processing device according to claim 8, characterized in that: The other end of the slow eccentric shaft (16) is fixedly fitted with a slow flywheel (15), the weight and diameter of which are the same as those of the slow wheel (10).

10. The construction waste recycling device according to claim 1, characterized in that: The crushing mechanism also includes two upper jaw plates (18) and two lower jaw plates (19). The upper jaw plates (18) and lower jaw plates (19) are fixedly installed on the side of the fast-moving jaw (14) and the slow-moving jaw (17) that are close to each other. The two upper jaw plates (18) are located above the corresponding lower jaw plates (19).

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