An aggregate feeding mechanism for a concrete production line
By introducing screening and crushing devices into the feeding mechanism of the concrete production line, the problem of uneven aggregate particle size was solved, and the strength and density of the concrete were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN RUNFENGZE BUILDING MATERIALS CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-26
AI Technical Summary
The existing concrete production line does not screen aggregates during the aggregate feeding process, resulting in uneven particle size distribution and affecting concrete quality.
An aggregate feeding mechanism for a concrete production line was designed, comprising a screening component and a crushing mechanism. It uses vibration screening and spiral blade conveying, and crushing blades to crush large aggregate pieces to ensure uniform particle size.
It achieves uniformity of aggregate particle size, thereby improving the compressive and tensile strength and density of concrete.
Smart Images
Figure CN224275613U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete production technology, and in particular to an aggregate feeding mechanism for a concrete production line. Background Technology
[0002] A concrete production line is a complex system integrating mixing, conveying, and storage functions, used for the efficient and continuous production of concrete. Aggregates mainly play a role in the skeleton and filler of concrete, and have a significant impact on its performance. Because existing recycled aggregates are processed from crushed waste concrete, a certain amount of fine aggregates is mixed into the large aggregates. The addition of these fine aggregates will have an adverse effect on the recycled concrete.
[0003] Existing technology, patent number CN221604772U, discloses a recycled concrete aggregate feeding mechanism for a mixing plant. This mechanism uses a screen to remove fine particles trapped within the recycled aggregate, thus reducing the impact of fine particles on the recycled concrete. Furthermore, the inclination angle of the conveying pipe can be adjusted using a cylinder and telescopic rod to accommodate mixers of different heights. The use of a screw conveyor reduces the risk of blockages during aggregate transport. However, in practical use, existing technologies directly convey aggregates without screening them, resulting in uneven aggregate particle size distribution. Aggregates that are too large or too small will reduce the strength of the concrete, thus affecting its quality. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide an aggregate feeding mechanism for a concrete production line.
[0005] This utility model is achieved through the following technical solution:
[0006] An aggregate feeding mechanism for a concrete production line includes a base plate. A base and an auger conveyor are fixedly connected to the top of the base plate. The base is installed on one side of the auger conveyor. A support frame is installed at the top of the base. A crushing mechanism is installed inside the support frame. A sorting box is arranged above the base. A screening assembly is installed inside the sorting box. The screening assembly includes a vibrating motor, which is fixedly connected to the front of the sorting box. Multiple springs are fixedly connected to the bottom of the sorting box. The bottom ends of the springs are fixedly connected to the top of the base. Two first inclined planes are fixedly connected inside the sorting box. The sorting box has a slope plate, a screening plate fixedly connected inside, a screening plate with multiple screening holes on its surface, a first discharge port connected to one side of the sorting box, a second discharge port connected to the other side of the sorting box, a second inclined plate fixedly connected inside the sorting box, a conveyor box fixedly connected to one side of the support frame, a first discharge port connected to one side of the conveyor box, a first variable frequency motor fixedly connected to the bottom of the conveyor box, a third discharge port on one side of the conveyor box, a first rotating shaft fixedly connected to the output end of the first variable frequency motor, and a spiral blade fixedly connected to the outside of the first rotating shaft.
[0007] It can be seen that the above technical solution can screen aggregates of different particle sizes, so that the aggregate particle size of the feed remains uniform, which is beneficial to improving the quality of concrete production.
[0008] Optionally, in one possible implementation, the crushing mechanism includes a feeding plate, which is fixedly connected to the top of a support frame. Two second variable frequency motors are installed on one side of the support frame. The output end of the second variable frequency motor is fixedly connected to a second rotating shaft. The second rotating shaft is rotatably connected to the inside of the support frame. Multiple first crushing blades and second crushing blades are fixedly connected to the outside of the second rotating shaft. The first crushing blades are installed on one side of the second crushing blades.
[0009] As can be seen, the above technical solution can break large aggregates into smaller particles, making the aggregates more uniform and dense.
[0010] The beneficial effects of this utility model are:
[0011] This invention, by setting up a screening component, compared with the prior art, can screen aggregates of different sizes through vibration and screening holes when the aggregates are sorted in the sorting box. The spiral action of the spiral blades is used to transport the larger aggregates back to the support frame for re-crushing, so that the aggregates fed are more uniform in size. The uniform aggregates can form a denser structure during the hardening process, thereby improving the compressive and tensile strength of concrete.
[0012] At the same time, by setting up a crushing mechanism, compared with the existing technology, the first and second crushing blades can be driven by the second rotating shaft to crush the aggregate. The first and second crushing blades can work together during the crushing process to form a more efficient crushing force, which can effectively crush large aggregates into smaller particles, making the aggregates more uniform and dense. Attached Figure Description
[0013] Figure 1 A schematic diagram of the overall structure of this utility model is shown;
[0014] Figure 2 A schematic diagram of the rear structure of the sorting box in this utility model is shown;
[0015] Figure 3 This invention provides a cross-sectional view of the sorting box and support frame.
[0016] Figure 4 A cross-sectional view of the conveyor box in this utility model is shown as a schematic diagram.
[0017] Figure 5 A partial structural schematic diagram of the second rotating shaft connection in this utility model is shown;
[0018] Figure 6 A schematic diagram of the internal structure of the sorting box in this utility model is shown;
[0019] Explanation of reference numerals in the attached figures:
[0020] 1. Base plate; 2. Base; 3. Screw conveyor; 4. Support frame; 5. Sorting box; 6. Vibrating motor; 7. Spring; 8. First inclined plate; 9. Screening plate; 10. Screening hole; 11. First discharge port; 12. Second inclined plate; 13. Second discharge port; 14. Conveyor box; 15. First variable frequency motor; 16. First rotating shaft; 17. Spiral blade; 18. Third discharge port; 19. Feed plate; 20. Second variable frequency motor; 21. Second rotating shaft; 22. First crushing blade; 23. Second crushing blade. Detailed Implementation
[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and preferred embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0022] In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.
[0023] Example 1: The embodiments disclosed in this application are as follows Figure 1-6 The aggregate feeding mechanism for a concrete production line shown includes a base plate 1, a base 2 and an auger conveyor 3 fixedly connected to the top of the base plate 1, the base 2 is installed on one side of the auger conveyor 3, a support frame 4 is installed at the top of the base 2, a crushing mechanism is installed inside the support frame 4, a sorting box 5 is set above the base 2, and a screening component is installed inside the sorting box 5.
[0024] The screening assembly includes a vibration motor 6, which is fixedly connected to the front of the sorting box 5. Multiple springs 7 are fixedly connected to the bottom of the sorting box 5, and the bottom of each spring 7 is fixedly connected to the top of the base 2. Two first inclined plates 8 are fixedly connected inside the sorting box 5. A screening plate 9 is fixedly connected inside the sorting box 5, and multiple screening holes 10 are formed on the surface of the screening plate 9. A first discharge port 11 is connected to one side of the sorting box 5, and a second discharge port 13 is connected to the other side. A second inclined plate 12 is fixedly connected inside the sorting box 5. A conveyor box 14 is fixedly connected to one side of the support frame 4, and the first discharge port 11 is connected to one side of the conveyor box 14. A first variable frequency motor is fixedly connected to the bottom of the conveyor box 14. 15. A third discharge port 18 is provided on one side of the conveyor box 14. The output end of the first variable frequency motor 15 is fixedly connected to the first rotating shaft 16. The outer side of the first rotating shaft 16 is fixedly connected to the spiral blade 17. By using the cooperation of the vibration motor 6 and multiple springs 7, the sorting box 5 can vibrate at the top of the base 2. Under the action of vibration, aggregates of different sizes can be screened through multiple screening holes 10 on the surface of the screening plate 9. The spiral blade 17 is driven by the first rotating shaft 16 to rotate, and the larger aggregates can be transported back to the support frame 4 for crushing, so that the aggregates fed are more uniform in size. Uniform aggregates help to improve the density and strength of concrete.
[0025] Example 2: The crushing mechanism includes a feeding plate 19, which is fixedly connected to the top of the support frame 4. Two second variable frequency motors 20 are installed on one side of the support frame 4. The output end of the second variable frequency motor 20 is fixedly connected to a second rotating shaft 21. The second rotating shaft 21 is rotatably connected to the inside of the support frame 4. Multiple first crushing blades 22 and second crushing blades 23 are fixedly connected to the outside of the second rotating shaft 21. The first crushing blades 22 are installed on one side of the second crushing blades 23. The two second variable frequency motors 20 simultaneously drive the second rotating shaft 21 to drive the multiple first crushing blades 22 and second crushing blades 23 to rotate. The two second rotating shafts 21 are symmetrically distributed inside the support frame 4, so that the two rotation directions are opposite. At the same time, the two second crushing blades 23 and the two first crushing blades 22 are cross-coordinated with each other, so that the aggregate can be better crushed between the two second rotating shafts 21, and large aggregates can be effectively crushed into smaller particles.
[0026] Working principle of this utility model: This utility model designs an aggregate feeding mechanism for a concrete production line, the specific structure of which is shown in the attached instruction manual. Figure 1-6 As shown, in this technical solution, through the cooperation of various structures, when aggregate needs to be fed, the aggregate is poured into the support frame 4 through the feed plate 19. Then, two second variable frequency motors 20 are started simultaneously, which drive the second rotating shaft 21 to rotate. This causes the second rotating shaft 21 to rotate multiple first crushing blades 22 and second crushing blades 23. When the aggregate falls into the support frame 4, it moves between the two second rotating shafts 21 through their rotation. The multiple first crushing blades 22 and second crushing blades 23 can crush large particles and lumps in the aggregate. The crushed aggregate then falls into the sorting box 5. After that, the vibration motor 6 is started, which drives the sorting box 5 to vibrate. Multiple springs 7 can assist the sorting box 5 in swinging. Under the action of vibration, aggregate particles of appropriate size can fall through the screening hole 10 to the second inclined plate 12. Under the incline of the second inclined plate 12 and vibration, they will be conveyed through the second discharge port 13 to the feed port at the top of the auger conveyor 3. The auger conveyor 3 can complete the feeding of aggregate. Aggregate particles larger than the diameter of the screening hole 10 can enter the conveying box 14 through the first discharge port 11 under the action of vibration and the inclination of the screening plate 9. Then, the first variable frequency motor 15 is started, and the first variable frequency motor 15 drives the first rotating shaft 16 to rotate. The first rotating shaft 16 can drive the spiral blade 17 to rotate. Under the spiral action of the spiral blade 17, the aggregate inside the conveying box 14 can be conveyed upward. The upward conveyed aggregate will re-enter the inner side of the support frame 4 through the third discharge port 18 for further crushing, so as to keep the aggregate particles uniform.
[0027] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.
Claims
1. An aggregate feeding mechanism for a concrete production line, characterized in that, Includes a base plate (1), the top of which is fixedly connected to a base (2) and an auger conveyor (3), the base (2) is installed on one side of the auger conveyor (3), the top of which is a support frame (4), the support frame (4) is installed inside the support frame (4), and a sorting box (5) is set above the base (2), the sorting box (5) is installed inside the sorting box (5); The screening assembly includes a vibration motor (6), which is fixedly connected to the front of the sorting box (5). Multiple springs (7) are fixedly connected to the bottom of the sorting box (5). The bottom of the springs (7) is fixedly connected to the top of the base (2). Two first inclined plates (8) are fixedly connected inside the sorting box (5). A screening plate (9) is fixedly connected inside the sorting box (5). Multiple screening holes (10) are opened on the surface of the screening plate (9).
2. The aggregate feeding mechanism for a concrete production line according to claim 1, characterized in that, The sorting box (5) has a first discharge port (11) connected to one side and a second discharge port (13) connected to the other side. A second inclined plate (12) is fixedly connected inside the sorting box (5).
3. The aggregate feeding mechanism for a concrete production line according to claim 1, characterized in that, The support frame (4) is fixedly connected to a conveyor box (14) on one side, and a first discharge port (11) is connected to one side of the conveyor box (14). A first variable frequency motor (15) is fixedly connected to the bottom of the conveyor box (14), and a third discharge port (18) is opened on one side of the conveyor box (14).
4. The aggregate feeding mechanism for a concrete production line according to claim 3, characterized in that, The output end of the first variable frequency motor (15) is fixedly connected to a first rotating shaft (16), and a spiral blade (17) is fixedly connected to the outside of the first rotating shaft (16).
5. The aggregate feeding mechanism for a concrete production line according to claim 1, characterized in that, The crushing mechanism includes a feeding plate (19), which is fixedly connected to the top of the support frame (4), and two second variable frequency motors (20) are installed on one side of the support frame (4).
6. The aggregate feeding mechanism for a concrete production line according to claim 5, characterized in that, The output end of the second variable frequency motor (20) is fixedly connected to a second rotating shaft (21), and the second rotating shaft (21) is rotatably connected to the support frame (4).
7. The aggregate feeding mechanism for a concrete production line according to claim 6, characterized in that, Multiple first crushing blades (22) and second crushing blades (23) are fixedly connected to the outside of the second rotating shaft (21), with the first crushing blades (22) installed on one side of the second crushing blades (23).