A construction waste crushing device for construction projects

Abstract

This utility model discloses a construction waste crushing device for building engineering, characterized by: a crusher body and a screening mechanism; two crushing rollers arranged opposite each other inside the crusher body; a cover detachably connected to the crusher body; and a servo motor fixedly installed on the crusher body to drive the crushing rollers to rotate. The screening mechanism includes a screening screen for separating small particles of waste and a separation plate for retaining large particles of construction waste, with a movable plate on the separation plate. By setting up the screening screen, separation plate, and movable plate, it is convenient to screen out small particles of construction waste first to avoid repeated crushing of small particles, and it is also convenient to crush large particles of construction waste separately. Therefore, compared with the existing level, this construction waste crushing device can effectively reduce the repeated crushing of small particles of construction waste, and further improve the recycling rate of construction waste.

Description

Technical Field

[0001] This utility model relates to the field of construction waste treatment technology, specifically a construction waste crushing device for construction projects. Background Technology

[0002] Construction waste mainly includes construction debris, waste bricks, waste tiles, loose mortar and concrete, as well as small amounts of steel, wood, glass, plastics, and various packaging materials. The common method of disposal is to transport it to designated locations for centralized landfill. Many people are aware of the pollution risks associated with landfilling, while construction waste also has recycling value. A crucial step in the recycling and reuse of construction waste is its crushing.

[0003] During the crushing process of construction waste, large-diameter particles are crushed together with small particles. Most of the large particles are crushed into smaller particles, while the small particles are crushed into even smaller particles with less utilization value. This results in uneven particle size of the crushed construction waste, leading to a decrease in the recycling rate of construction waste. Utility Model Content

[0004] The purpose of this invention is to provide a construction waste crushing device for construction projects, in order to solve the problem mentioned in the background art that repeated crushing of small particles of waste reduces the reuse rate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a construction waste crushing device for construction engineering, characterized in that: it includes a crusher body and a screening mechanism; two crushing rollers are arranged opposite each other inside the crusher body; a cover is detachably connected to the crusher body; a feed inlet is provided on the cover; a discharge outlet is provided on the crusher body; a servo motor for driving the crushing rollers to rotate is fixedly installed on the crusher body; the screening mechanism includes a screening screen for screening out small particles of waste and an isolation plate for intercepting large particles of construction waste; a movable plate is provided on the isolation plate; the isolation plate is fixedly installed with the cover; and a stepper motor for driving the movable plate to move is provided on the cover.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Preferably, the crushing roller includes a main shaft, a roller surface is provided on the main shaft, and teeth are provided on the roller surface. A sealed bearing is provided between the main shaft and the crusher body. By providing a sealed bearing, the internal and external spaces of the crusher body are kept sealed while the main shaft rotates, reducing dust emissions during crushing.

[0008] Preferably, the output shaft of the servo motor is provided with a drive gear, and a transmission gear meshes with the drive gear. The main shafts of the two crushing rollers are respectively fixedly connected to the drive gear and the transmission gear.

[0009] Preferably, a vibrating motor is fixedly installed on the bottom surface of the cover, the output end of the vibrating motor is fixedly connected to the isolation plate, the screening screen is fixedly installed on the isolation plate, and the surface of the vibrating motor is provided with a dustproof cover, or a model with dustproof effect on the market can be selected. By setting the vibrating motor, the vibration effect is transmitted to the screening screen through the isolation plate, so that the screening screen can quickly screen out small particles of construction waste.

[0010] Preferably, the cover has a translation groove, a screw is rotatably connected in the translation groove, a transmission block is provided on the screw, a nut threadedly connected to the screw is provided in the transmission block, the screw is fixedly installed to the output end of the stepper motor, an L-shaped rod is provided on the transmission block, and the end of the L-shaped rod away from the cover is fixedly connected to the movable plate. The translation effect of the movable plate is controllable through the screw transmission, which facilitates the large particles of waste to pass through the isolation plate and reach the crushing roller after the small particles of waste are screened.

[0011] Preferably, the isolation plate is provided with through holes adapted to the movable plate, and the screening mechanism further includes a push plate and a connecting rod. The push plate is disposed on the screening screen, and the two ends of the connecting rod are fixedly connected to the push plate and the movable plate, respectively.

[0012] Preferably, the push plate is shaped like a triangular prism, and a scraper is provided on the bottom surface of the push plate.

[0013] Preferably, the crusher body is equipped with a power supply for power supply, and both the feed inlet and discharge outlet are equipped with switchable valves, and a guide plate is provided inside the crusher body.

[0014] Beneficial effects Compared with the prior art, the technical solution of this application has the following beneficial technical effects: a construction waste crushing device for construction projects, by setting a screening screen, a partition plate and a movable plate, facilitates the screening out of small particles of construction waste to avoid repeated crushing of small particles of construction waste, and facilitates the separate crushing of large particles of construction waste. Thus, the construction waste crushing device for construction projects can effectively reduce the repeated crushing of small particles of construction waste compared with the existing level, and further achieve the purpose of improving the recycling rate of construction waste. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the present invention; Figure 2 This is a schematic diagram of the main view of this utility model; Figure 3 for Figure 1 Schematic diagram of the cross section at point AA.

[0016] In the diagram: 1. Crusher body; 2. Crushing roller; 21. Main shaft; 22. Roller surface; 3. Screening mechanism; 31. Screening screen; 32. Isolation plate; 33. Movable plate; 34. Push plate; 35. Connecting rod; 4. Feed inlet; 5. Discharge outlet; 6. Servo motor; 7. Vibration motor; 8. Cover; 9. Stepper motor; 10. Transmission gear; 11. Translation groove; 12. Screw; 13. Transmission block; 14. L-shaped rod; 15. Guide plate; 16. Drive gear. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-3 This utility model provides a technical solution: a construction waste crushing device for construction engineering, including a crusher body 1 and a screening mechanism 3. Two crushing rollers 2 are arranged opposite each other inside the crusher body 1. A cover 8 is detachably connected to the crusher body 1. A feed inlet 4 is provided on the cover 8. A discharge outlet 5 is provided on the crusher body 1. A servo motor 6 for driving the crushing rollers 2 to rotate is fixedly installed on the crusher body 1. The screening mechanism 3 includes a screening screen 31 for screening out small particles of waste and an isolation plate 32 for intercepting large particles of waste. The isolation plate 32 is provided with a movable plate 33. The isolation plate 32 is fixedly installed with the cover 8.

[0019] The screening mechanism 3 is mounted on the cover 8, which is equipped with a stepper motor 9 for driving the movable plate 33 to move. The cover 8 is fixedly installed with the isolation plate 32 and the crusher body 1 is detachably connected to the cover 8, which facilitates the removal of the screening mechanism 3 from the crusher body 1 for easy maintenance. By setting the screening screen 31, the isolation plate 32 and the movable plate 33, it is easy to screen out small particles of construction waste first to avoid repeated crushing of small particles of construction waste, and it is also easy to crush large particles of construction waste separately.

[0020] The crushing roller 2 includes a main shaft 21, a roller surface 22 is provided on the main shaft 21, and convex teeth are provided on the roller surface 22. A sealed bearing is provided between the main shaft 21 and the crusher body 1.

[0021] The output shaft of the servo motor 6 is provided with a drive gear 16, and a transmission gear 10 meshes with the drive gear 16. The main shafts 21 of the two crushing rollers 2 are fixedly connected to the drive gear 16 and the transmission gear 10, respectively.

[0022] A vibration motor 7 is fixedly installed on the bottom surface of the cover 8. The output end of the vibration motor 7 is fixedly connected to the isolation plate 32. The screening screen 31 is fixedly installed on the isolation plate 32. By setting the vibration motor 7, it is easier to speed up the screening rate of small-particle construction waste by the screening screen 31.

[0023] The cover 8 has a translation groove 11, and a screw 12 is rotatably connected in the translation groove 11. A transmission block 13 is provided on the screw 12, and a nut threadedly connected to the screw 12 is provided in the transmission block 13. The screw 12 is fixedly installed to the output end of the stepper motor 9. An L-shaped rod 14 is provided on the transmission block 13. The end of the L-shaped rod 14 away from the cover 8 is fixedly connected to the movable plate 33. By setting the screw 12, the L-shaped rod 14, the transmission block 13 and the stepper motor 9, the translation of the movable plate 33 can be easily controlled.

[0024] The isolation plate 32 is provided with through holes that are adapted to the movable plate 33. The screening mechanism 3 also includes a push plate 34 and a connecting rod 35. The push plate 34 is disposed on the screening screen 31, and the two ends of the connecting rod 35 are fixedly connected to the push plate 34 and the movable plate 33, respectively.

[0025] The push plate 34 is shaped like a triangular prism, and a scraper is provided on the bottom surface of the push plate 34. By setting the push plate 34 and the scraper, it is convenient to push the large particles of construction waste onto the crushing roller 2 after the small particles of construction waste have been screened. At the same time, the scraper can clean the surface of the screening screen 31 and reduce the risk of screen hole blockage.

[0026] The crusher body 1 is equipped with a power supply for power supply. The feed inlet 4 and the discharge outlet 5 are both equipped with switchable valves. The crusher body 1 is equipped with a guide plate 15. Therefore, this construction waste crushing device for construction projects can effectively reduce the repeated crushing of small-particle construction waste compared with the existing level, and further improve the recycling rate of construction waste.

[0027] Working principle: Construction waste is first poured in through the feed inlet 4 and enters the screening screen 31. The waste is blocked by the isolation plate 32 and the movable plate 33. Small particles of construction waste pass through the screening screen 31 and fall to the bottom of the crusher. At the same time, the vibration motor 7 is turned on to speed up the screening rate of the screening screen 31. After screening, the stepper motor 9 is turned on to make the screw 12 rotate, which drives the transmission block 13 to move the L-shaped rod 14, which in turn moves the movable plate 33. This opens the through holes on the isolation plate 32, allowing large particles of construction waste to pass through the isolation plate 32 and reach the crushing roller 2. Under the influence of gravity, they fall onto the crushing roller 2. At the same time, the servo motor 6 is turned on to drive the drive gear 16 to rotate, which in turn drives the transmission gear 10 to rotate, which in turn drives the two crushing rollers 2 to rotate in opposite directions. After the large particles of waste are crushed, they fall into the bottom of the crusher body 1. Thus, this construction waste crushing device can effectively reduce the repeated crushing of small particles of construction waste compared with the existing level, and further improve the recycling rate of construction waste.

[0028] The mechanisms, components, and parts in this utility model that are not specifically described are all existing structures that already exist in the prior art and can be purchased directly from the market.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A construction waste crushing device for construction projects, characterized in that: The device includes a crusher body (1) and a screening mechanism (3). The crusher body (1) has two crushing rollers (2) arranged opposite to each other. The crusher body (1) is detachably connected to a cover (8). The cover (8) is provided with a feed inlet (4). The crusher body (1) is provided with a discharge outlet (5). The crusher body (1) is fixedly installed with a servo motor (6) for driving the crushing rollers (2) to rotate. The screening mechanism (3) includes a screening screen (31) for screening out small particles of waste and an isolation plate (32) for intercepting large particles of waste. The isolation plate (32) is provided with a movable plate (33). The isolation plate (32) is fixedly installed with the cover (8). The screening mechanism (3) is located on the cover (8). The cover (8) is provided with a stepper motor (9) for driving the movable plate (33) to move.

2. The construction waste crushing device for construction projects according to claim 1, characterized in that: The crushing roller (2) includes a main shaft (21), a roller surface (22) is provided on the main shaft (21), and a toothed surface is provided on the roller surface (22). A sealed bearing is provided between the main shaft (21) and the crusher body (1).

3. The construction waste crushing device for construction projects according to claim 1, characterized in that: The output shaft of the servo motor (6) is provided with a drive gear (16), and a transmission gear (10) meshes on the drive gear (16). The main shafts (21) of the two crushing rollers (2) are fixedly connected to the drive gear (16) and the transmission gear (10) respectively.

4. The construction waste crushing device for construction projects according to claim 1, characterized in that: A vibration motor (7) is fixedly installed on the bottom surface of the cover (8). The output end of the vibration motor (7) is fixedly connected to the isolation plate (32). The screening screen (31) is fixedly installed on the isolation plate (32).

5. A construction waste crushing device for construction projects according to claim 1, characterized in that: The cover (8) is provided with a translation groove (11), and a screw (12) is rotatably connected in the translation groove (11). A transmission block (13) is provided on the screw (12), and a nut that is threadedly connected to the screw (12) is provided in the transmission block (13). The screw (12) is fixedly installed with the output end of the stepper motor (9). An L-shaped rod (14) is provided on the transmission block (13), and the end of the L-shaped rod (14) away from the cover (8) is fixedly connected to the movable plate (33).

6. A construction waste crushing device for construction projects according to claim 1, characterized in that: The isolation plate (32) is provided with through holes that are compatible with the movable plate (33). The screening mechanism (3) also includes a push plate (34) and a connecting rod (35). The push plate (34) is disposed on the screening screen (31). The two ends of the connecting rod (35) are fixedly connected to the push plate (34) and the movable plate (33) respectively.

7. A construction waste crushing device for construction projects according to claim 6, characterized in that: The push plate (34) is shaped like a triangular prism, and a scraper is provided on the bottom surface of the push plate (34).

8. A construction waste crushing device for construction engineering according to claim 1, characterized in that: The crusher body (1) is equipped with a power supply for power supply, and the feed inlet (4) and discharge outlet (5) are equipped with switchable valves. The crusher body (1) is equipped with a guide plate (15).

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