Garbage crushing device for constructional engineering
The construction waste crushing device, with its dual crushing rollers and screen plate design, solves the problem of inconsistent material sizes in traditional equipment, achieving automatic screening and efficient crushing, thus improving work efficiency.
Patent Information
- Application Number
- CN202520033111.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Traditional construction waste crushing equipment lacks screening capabilities, resulting in unevenly sized crushed material pieces that require manual sorting, leading to low efficiency.
The system employs a dual crushing roller structure and screen plate design, combined with a reflux mechanism, to achieve dual crushing and automatic screening of construction waste, ensuring the uniformity of the crushed waste.
It achieves uniformity after crushing construction waste, eliminates the need for manual screening, simplifies operation, and significantly improves work efficiency.
Smart Images
Figure CN223774932U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction engineering technology, specifically a waste crushing device for construction engineering. Background Technology
[0002] Construction waste refers to construction waste generated during engineering projects, including waste concrete, waste bricks and stones, waste soil and other discarded materials. In construction projects, construction waste is usually disposed of properly. After processing, construction waste can be recycled and reused. When processing construction waste, it is necessary to crush it first. Generally, crushing equipment is used to crush construction waste.
[0003] Traditional construction waste crushing equipment only has a simple crushing function. After crushing, the construction waste still contains many pieces of different sizes. It cannot be screened after crushing and needs to be sorted manually. Then, the larger pieces need to be crushed again, which is time-consuming and labor-intensive, resulting in low work efficiency. Utility Model Content
[0004] The purpose of this utility model is to provide a waste crushing device for construction projects to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A construction waste crushing device includes a housing. A feed hopper is connected to the top of the housing. Two symmetrically arranged first rotating shafts are rotatably connected to the inner wall of the housing near the top. First crushing rollers are fixedly connected to the surfaces of the first rotating shafts. Two symmetrically arranged second rotating shafts are rotatably connected to the inner wall of the housing, located below the first rotating shafts. Second crushing rollers are fixedly connected to the surfaces of the second rotating shafts. The distance between the two first crushing rollers is greater than the distance between the two second crushing rollers. One end of each of the first and second rotating shafts on the same side extends to the outside of the housing and is linked to a drive assembly. The drive directions of the two drive assemblies are opposite to each other. A screen plate is fixedly connected to the inner wall of the housing, located below the second crushing rollers. A discharge port, communicating with the inner cavity of the housing, is opened at the center of the bottom of the housing. Two L-shaped support plates are fixedly connected to the bottom of the housing. A collection trolley is arranged between the two L-shaped support plates, located directly below the discharge port. A return mechanism is arranged on one side of the outer side of the housing. The screen plate is inclined, with the lower end of the screen plate facing the return mechanism.
[0007] As a further embodiment of this utility model: the drive assembly includes pulleys fixedly connected to one end of the first rotating shaft and the second rotating shaft, a transmission belt sleeved between the two pulleys, a first motor fixedly connected to the outer wall of the housing, and the output end of the first motor fixedly connected to one of the pulleys.
[0008] As a further embodiment of this utility model: the inner wall of the box is fixedly connected with two guide plates located above the first crushing roller and arranged symmetrically, and a guide slope is provided at the bottom of the box.
[0009] As a further embodiment of this utility model: a limiting plate is fixedly connected to the bottom end of the box near the edge, a magnetic seat is provided on the side of the limiting plate near the collection cart, and a magnetic block adapted to the magnetic seat is provided on the side of the collection cart near the limiting plate.
[0010] As a further embodiment of this utility model: the reflux mechanism includes a reflux cylinder fixedly connected to one side of the housing by a fixing frame, a rotating auger rotatably arranged inside the reflux cylinder, a second motor arranged at the bottom end of the reflux cylinder, the output end of the second motor being connected to the rotating auger, and a discharge pipe and a feed pipe distributed vertically connected to the reflux cylinder, the discharge pipe being aligned with the feed hopper, and the feed pipe being connected to the housing.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This utility model, employing the aforementioned structure, includes a first rotating shaft, a first crushing roller, a second rotating shaft, a second crushing roller, a drive assembly, a screen plate, a discharge port, a collection trolley, and a return mechanism. When crushing construction waste, the drive assembly drives the two first rotating shafts to rotate relative to each other and the two second rotating shafts to rotate relative to each other. This, in turn, drives the two first crushing rollers and the two second crushing rollers to rotate relative to each other, thus performing double crushing on the construction waste entering the box. Smaller pieces of waste fall through the holes in the screen plate to the bottom of the box and then through the discharge port into the collection trolley below for collection. Larger pieces of waste are intercepted by the screen plate and enter the return mechanism along the inclined surface of the screen plate. From there, they re-enter the box through the feed hopper for further crushing. This results in uniformly sized construction waste, eliminating the need for manual screening, simplifying operation, providing convenience, and increasing work efficiency. Attached Figure Description
[0013] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings, but this does not constitute any limitation on the present invention.
[0014] Figure 1 This is a cross-sectional view of a waste crushing device for construction engineering.
[0015] Figure 2 In a waste crushing device for construction engineering Figure 1 A magnified structural diagram at point A.
[0016] Figure 3 This is a schematic diagram of the main structure of a waste crushing device for construction engineering.
[0017] Figure 4 In a waste crushing device for construction engineering Figure 3 A magnified structural diagram at point B.
[0018] Figure 5 This is a schematic diagram of the limiting plate in a waste crushing device for construction engineering.
[0019] In the diagram: 1. Box body; 2. Feed hopper; 3. First rotating shaft; 4. First crushing roller; 5. Second rotating shaft; 6. Second crushing roller; 7. Drive assembly; 701. Pulley; 702. Transmission belt; 703. First motor; 8. Screen plate; 9. Discharge port; 10. L-shaped support plate; 11. Collection trolley; 12. Return mechanism; 1201. Return cylinder; 1202. Rotating auger; 1203. Second motor; 1204. Discharge pipe; 1205. Feed pipe; 13. Guide plate; 14. Guide slope; 15. Limiting plate; 16. Magnetic base; 17. Magnetic block. Detailed Implementation
[0020] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0021] Please see Figure 1-5A construction waste crushing device includes a housing 1, with a feed hopper 2 connected to the top of the housing 1. Two first rotating shafts 3, symmetrically arranged, are rotatably connected to the inner wall of the housing 1 near the top. A first crushing roller 4 is fixedly connected to the surface of the first rotating shaft 3. Two second rotating shafts 5, symmetrically arranged and located below the first rotating shafts 3, are rotatably connected to the inner wall of the housing 1. A second crushing roller 6 is fixedly connected to the surface of the second rotating shaft 5. The distance between the two first crushing rollers 4 is greater than the distance between the two second crushing rollers 6. The two first crushing rollers 4 can perform preliminary crushing of construction waste, and the two second crushing rollers 6 can perform secondary crushing of the preliminary crushed construction waste. One end of the first rotating shaft 3 and the second rotating shaft 5, located on the same side, extends to the outside of the housing 1 and is linked to a drive assembly 7. The drive directions of the two drive assemblies 7 are opposite to each other. A screen plate 8 located below the second crushing roller 6 is fixedly connected to the inner wall of the housing 1. A discharge port 9, which is connected to the inner cavity of the housing 1, is opened at the center of the bottom of the housing 1. Two L-shaped support plates 10 are fixedly connected to the bottom of the housing 1 to support it. A collection trolley 11 is arranged between the two L-shaped support plates 10, and the collection trolley 11 is located directly below the discharge port 9. A return mechanism 12 is arranged on the outer side of the housing 1. The screen plate 8 is inclined, and the lower end of the screen plate 8 faces the return mechanism 12. When crushing construction waste, the two drive components 7 are activated to drive the two first rotating shafts 3 to rotate relative to each other and the two second rotating shafts 5 to rotate relative to each other. This causes the two first crushing rollers 4 and the two second crushing rollers 6 to rotate relative to each other, thus performing double crushing on the construction waste entering the box 1. After crushing, smaller pieces of waste will fall through the holes on the screen plate 8 to the bottom of the box 1, and then fall through the discharge port 9 into the collection cart 11 below for collection. Larger pieces of waste will be intercepted by the screen plate 8 and enter the return mechanism 12 along the inclined surface of the screen plate 8. Through the return mechanism 12, they will re-enter the box 1 through the feed hopper 2 for crushing again. This makes the crushed construction waste uniform in size, eliminating the need for manual screening. The operation is simple, convenient, and efficient.
[0022] Furthermore, the drive assembly 7 includes pulleys 701 fixedly connected to one end of the first rotating shaft 3 and the second rotating shaft 5, a transmission belt 702 sleeved between the two pulleys 701, and a first motor 703 fixedly connected to the outer wall of the housing 1. The output end of the first motor 703 is fixedly connected to one of the pulleys 701. When in use, the drive assembly 7 starts the first motor 703 to drive one of the pulleys 701 to rotate. With the cooperation of the transmission belt 702, the other pulley 701 will rotate synchronously, thereby driving the first rotating shaft 3 and the second rotating shaft 5 located on the same side to rotate synchronously. When crushing construction waste, both first motors 703 are started simultaneously, thereby driving the two first crushing rollers 4 and the two second crushing rollers 6 to rotate relative to each other, crushing the waste entering the housing 1.
[0023] Furthermore, the inner wall of the box 1 is fixedly connected with two guide plates 13 located above the first crushing roller 4 and arranged symmetrically, so that the construction waste entering the box 1 can fall smoothly between the two first crushing rollers 4 for crushing. A guide slope 14 is provided at the bottom of the box 1. The guide slope 14 can allow the waste falling at the bottom of the box 1 to smoothly enter the discharge port 9, avoiding the accumulation of waste at the bottom of the box 1.
[0024] Furthermore, a limiting plate 15 is fixedly connected to the bottom end of the box 1 near the edge. A magnetic seat 16 is provided on the side of the limiting plate 15 near the collection cart 11, and a magnetic block 17 adapted to the magnetic seat 16 is provided on the side of the collection cart 11 near the limiting plate 15. By setting the limiting plate 15, the magnetic seat 16 and the magnetic block 17, the collection cart 11 can be limited and fixed, so that the collection cart 11 will not deviate when receiving garbage fragments, and the collection cart 11 will always be located directly below the discharge port 9.
[0025] Furthermore, the reflux mechanism 12 includes a reflux cylinder 1201 fixedly connected to one side of the housing 1 by a fixing frame. A rotating auger 1202 is rotatably arranged inside the reflux cylinder 1201. A second motor 1203 is arranged at the bottom end of the reflux cylinder 1201. The output end of the second motor 1203 is connected to the rotating auger 1202. A discharge pipe 1204 and a feed pipe 1205 distributed vertically are connected to the reflux cylinder 1201. The discharge pipe 1204 is aligned with the feed hopper 2. The feed pipe 1205 is connected to the housing 1. When larger pieces of waste cannot pass through the holes of the screen plate 8 after crushing, the waste will enter the return cylinder 1201 through the feed pipe 1205 along the inclined surface of the screen plate 8. By starting the second motor 1203, the rotating auger 1202 will be driven to rotate. The rotating auger 1202 will transport the waste at the bottom of the return cylinder 1201 to a higher position, and then transport it back to the feed hopper 2 through the discharge pipe 1204, and re-enter the box 1 for secondary crushing.
[0026] In operation, when crushing construction waste, the two drive components 7 are activated to drive the two first rotating shafts 3 to rotate relative to each other and the two second rotating shafts 5 to rotate relative to each other. This causes the two first crushing rollers 4 and the two second crushing rollers 6 to rotate relative to each other, thus performing double crushing on the construction waste entering the housing 1. Smaller pieces of waste fall through the holes in the screen plate 8 to the bottom of the housing 1, and then fall through the discharge port 9 into the collection cart 11 below for collection. Larger pieces of waste are intercepted by the screen plate 8 and enter the return mechanism 12 along the inclined surface of the screen plate 8, where they are re-entered through the feed. The waste enters the box 1 through the hopper 2 for further crushing, resulting in uniformly sized construction waste that does not require manual screening. The operation is simple, convenient, and efficient. When larger pieces of waste cannot pass through the holes of the screen plate 8, they will enter the return cylinder 1201 through the feed pipe 1205 along the inclined surface of the screen plate 8. The second motor 1203 is started to drive the rotating auger 1202 to rotate. The rotating auger 1202 will transport the waste at the bottom of the return cylinder 1201 to a higher position, and then transport it back to the feed hopper 2 through the discharge pipe 1204, where it will re-enter the box 1 for secondary crushing.
[0027] The above-described embodiments are preferred embodiments of the present utility model and are only used to facilitate the illustration of the present utility model. They are not intended to limit the present utility model in any way. Any person skilled in the art who makes partial modifications or alterations to the technical content disclosed in the present utility model without departing from the scope of the technical features of the present utility model shall still fall within the scope of the technical features of the present utility model.
Claims
1. A waste crushing device for construction projects, comprising a housing (1), characterized in that, The top of the housing (1) is connected to a feed hopper (2). Two first rotating shafts (3) are rotatably connected to the inner wall of the housing (1) near the top, arranged symmetrically. A first crushing roller (4) is fixedly connected to the surface of the first rotating shaft (3). Two second rotating shafts (5) are rotatably connected to the inner wall of the housing (1) below the first rotating shafts (3) and arranged symmetrically. A second crushing roller (6) is fixedly connected to the surface of the second rotating shafts (5). The distance between the two first crushing rollers (4) is greater than the distance between the two second crushing rollers (6). One end of the first rotating shaft (3) and the second rotating shaft (5) on the same side extends to the outside of the housing (1) and is linked to a drive. The driving components (7) are arranged in opposite directions. A screen plate (8) located below the second crushing roller (6) is fixedly connected to the inner wall of the box (1). A discharge port (9) connected to the inner cavity of the box (1) is opened at the center of the bottom of the box (1). Two L-shaped support plates (10) are fixedly connected to the bottom of the box (1). A collection trolley (11) is arranged between the two L-shaped support plates (10). The collection trolley (11) is located directly below the discharge port (9). A return mechanism (12) is arranged on the outer side of the box (1). The screen plate (8) is inclined and the lower end of the screen plate (8) faces the return mechanism (12).
2. The waste crushing device for construction projects according to claim 1, characterized in that, The drive assembly (7) includes pulleys (701) fixedly connected to one end of the first shaft (3) and the second shaft (5), a transmission belt (702) is sleeved between the two pulleys (701), and a first motor (703) is fixedly connected to the outer wall of the housing (1). The output end of the first motor (703) is fixedly connected to one of the pulleys (701).
3. The construction waste crushing device according to claim 1, characterized in that, The inner wall of the box (1) is fixedly connected to two guide plates (13) located above the first crushing roller (4) and arranged symmetrically. A guide slope (14) is provided at the bottom of the inner wall of the box (1).
4. A waste crushing device for construction projects according to claim 1, characterized in that, A limiting plate (15) is fixedly connected to the bottom end of the box (1) near the edge. A magnetic seat (16) is provided on the side of the limiting plate (15) near the collection cart (11). A magnetic block (17) adapted to the magnetic seat (16) is provided on the side of the collection cart (11) near the limiting plate (15).
5. A waste crushing device for construction projects according to claim 1, characterized in that, The reflux mechanism (12) includes a reflux cylinder (1201) fixedly connected to one side of the housing (1) by a fixing frame. A rotating auger (1202) is rotatably arranged inside the reflux cylinder (1201). A second motor (1203) is arranged at the bottom end of the reflux cylinder (1201). The output end of the second motor (1203) is connected to the rotating auger (1202). A discharge pipe (1204) and a feed pipe (1205) distributed vertically are connected to the reflux cylinder (1201). The discharge pipe (1204) is aligned with the feed hopper (2). The feed pipe (1205) is connected to the housing (1).