Concrete mixer for high-strength concrete production
By using a servo motor-driven transmission system and a double-helix mixing ring design, the problem of poor material circulation in existing technologies has been solved, enabling uniform mixing and efficient production of high-strength concrete.
Patent Information
- Application Number
- CN202423123736.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-18
AI Technical Summary
In existing high-strength concrete mixers, the blade angle is too gentle, making it difficult for materials to form an effective up-and-down circulation, resulting in uneven concrete quality and low production efficiency.
The transmission system, driven by a servo motor, achieves compound circumferential and axial motion of materials through the design of transmission rods and double helical stirring rings. Combined with an angle adjustment mechanism, it enhances the attitude adjustment capability of the stirring drum and promotes uniform mixing of materials in all directions.
It achieves all-round, multi-level circulating mixing of materials, improves the quality and production efficiency of concrete, ensures the uniformity of concrete and the stability of finished product quality, and reduces mixing time and discharge residue.
Smart Images
Figure CN223617952U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete processing equipment technology, and in particular to a concrete mixer for producing high-strength concrete. Background Technology
[0002] High-strength concrete is a type of concrete with high compressive strength and other performance indicators. It is typically made from high-quality cement, coarse and fine aggregates, and admixtures in precise proportions. It is often used in the construction of large bridges, high-rise buildings, and long-span structures where high structural load-bearing capacity is required, better meeting stringent requirements for safety and stability. A concrete mixer is a mechanical device used to mix concrete. It thoroughly mixes cement, sand, gravel, water, and other additives in a certain proportion, ensuring that the components are evenly distributed and guaranteeing the stable quality of the concrete. This allows it to continuously provide finished concrete that meets the construction requirements for various building construction scenarios.
[0003] A high-strength concrete mixer mainly consists of a mixing drum, mixing shaft, blades, feeding device, discharging device, transmission device, and power unit. Its working principle is as follows: the power unit drives the transmission device, causing the mixing shaft to rotate the blades inside the mixing drum. The feeding device feeds cement, coarse and fine aggregates, water, and admixtures into the mixing drum in a specific ratio. During rotation, the blades violently tumble, shear, and mix these materials, ensuring thorough and uniform mixing. Finally, the well-mixed high-strength concrete is discharged through the discharging device.
[0004] In existing technologies, the lifting and spreading effect on materials is often weakened due to the excessively gentle angle of the blades. When the blades rotate, they can only push the materials within a small range, making it difficult to create effective up-and-down circulation. This makes it difficult for some mixers to circulate and mix the materials repeatedly, resulting in a decline in concrete quality, such as uneven strength and inconsistent workability. It also reduces production efficiency, causes batch quality instability, and prolongs mixing time. Therefore, a high-strength concrete mixer is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a concrete mixer for high-strength concrete production, which aims to improve the problem that some existing mixers are unable to repeatedly mix materials.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A concrete mixer for producing high-strength concrete includes a mixing drum, a feeding mechanism fixedly connected to the top of the mixing drum, multiple support legs fixedly connected to the bottom of the mixing drum, a support plate fixedly connected to the bottom of the multiple support legs, a mixing mechanism fixedly connected to the top of the support plate, a discharge mechanism fixedly connected to the outside of the mixing drum, and an angle adjustment mechanism fixedly connected to the bottom of the support plate.
[0008] The stirring mechanism includes a servo motor, the bottom of which is fixedly connected to the top of the support plate. A support frame is fixedly connected to the top of the support plate, and a transmission device is fixedly connected to the top of the support frame. Two rollers are fixedly connected to one end of the transmission device and the output end of the servo motor, respectively. A circulating stirring assembly is fixedly connected to the other end of the transmission device.
[0009] As a further description of the above technical solution:
[0010] The circulating stirring assembly includes a transmission rod, one end of which is fixedly connected to the other end of the transmission device. Multiple mounting blocks are fixedly connected to the outer wall of the transmission rod, and two connecting rods are fixedly connected to the outer wall of each mounting block. A stirring ring I is fixedly connected to the other end of multiple connecting rods, and a stirring ring II is fixedly connected to the other end of multiple connecting rods. A retainer is rotatably connected to the other end of the transmission rod, and the outer wall of the retainer is fixedly connected to the outer wall of the stirring cylinder.
[0011] As a further description of the above technical solution:
[0012] The feeding mechanism includes a feeding box, the bottom of which is fixedly connected to the top of the mixing drum, and the top of which is fixedly connected to two feeding ports;
[0013] As a further description of the above technical solution:
[0014] The discharge mechanism includes a discharge port, the outer wall of which is fixedly connected to the outside of the mixing drum, the inner wall of which is threadedly connected to a threaded plug, and the outer wall of which is fixedly connected to a sealing ring.
[0015] As a further description of the above technical solution:
[0016] The angle adjustment mechanism includes a connecting block 1, the top of which is fixedly connected to the bottom of the support plate. Two fixed posts 1 are rotatably connected to both ends of the connecting block 1. A base plate is fixedly connected to the bottom of the two fixed posts 1. Two fixed posts 2 are fixedly connected to the top of the base plate. A dual-head motor is rotatably connected to the adjacent side of the two fixed posts 2. Two rotating plates 1 are fixedly connected to the two output ends of the dual-head motor. A rotating plate 2 is rotatably connected to the other end of the rotating plate 1. A connecting block 2 is rotatably connected to the adjacent side of the two rotating plates 2. The top of the connecting block 2 is fixedly connected to the bottom of the support plate.
[0017] As a further description of the above technical solution:
[0018] The outer wall of the discharge port is provided with an annular groove, and the outer wall of the sealing ring is detachably connected to the inside of the annular groove.
[0019] As a further description of the above technical solution:
[0020] Both the first stirring ring and the second stirring ring are spiral-shaped, and the first stirring ring and the second stirring ring are arranged in a double spiral.
[0021] As a further description of the above technical solution:
[0022] One of the rollers is coupled to a belt on its outer side, and the inner side of the belt is coupled to the outer side of another roller.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, a servo motor drives the roller to rotate, which is then transmitted through belt drive and a transmission device, ultimately driving the transmission rod to move. With the help of the mounting block and connecting rod, the transmission rod causes the first and second mixing rings to rotate at high speed under the drive of the transmission rod, guiding the materials to perform a compound motion in the circumferential and axial directions. This promotes the rapid and uniform mixing of various raw materials, achieving the effect of cyclic stirring of materials. It breaks up the agglomeration of raw materials in all directions, allowing cement, sand, gravel, additives and other components to fully contact and disperse evenly, promoting a more thorough chemical reaction, accurately controlling the concrete mix ratio, effectively ensuring the quality and performance stability of high-strength concrete, and improving production efficiency.
[0025] 2. In this utility model, a dual-head motor drives the rotating plate one to rotate, and the rotating plate two drives the connecting block two to act on the support plate, causing the support plate to lift or tilt downward around the connecting block two, thereby driving the entire mixing drum to move synchronously. When the mixing drum is lifted, it can disrupt the original accumulation state of the raw materials, causing them to tumble in multiple dimensions inside the drum, enhancing the degree of mixing, greatly reducing the mixing time, efficiently stimulating the activity of the raw materials, and improving the quality of concrete. When the mixing drum tilts downward, it utilizes the gravitational potential energy, and the finished concrete flows smoothly to the discharge port with a stable and controllable flow rate. This not only ensures thorough discharge and reduces residue inside the drum, but also reduces the risk of blockage. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of the concrete mixer for producing high-strength concrete proposed in this utility model.
[0027] Figure 2 This is a schematic diagram of the mixing drum of the high-strength concrete mixer for production proposed in this utility model.
[0028] Figure 3 This is a schematic diagram of the transmission rod of the concrete mixer for high-strength concrete production proposed in this utility model.
[0029] Figure 4 An exploded view of the threaded plug of the high-strength concrete mixer for producing high-strength concrete proposed in this utility model.
[0030] Figure 5 This is a schematic diagram of the connecting block 2 of the high-strength concrete mixer for production proposed in this utility model.
[0031] Legend:
[0032] 1. Mixing drum; 2. Feed box; 3. Feed inlet; 4. Support leg; 5. Support plate; 6. Servo motor; 7. Support frame; 8. Transmission device; 9. Roller; 10. Belt; 11. Transmission rod; 12. Mounting block; 13. Connecting rod; 14. Mixing ring one; 15. Mixing ring two; 16. Fixer; 17. Discharge port; 18. Threaded plug; 19. Sealing ring; 20. Connecting block one; 21. Fixing post one; 22. Base plate; 23. Fixing post two; 24. Dual-head motor; 25. Rotating plate one; 26. Rotating plate two; 27. Connecting block two. Detailed Implementation
[0033] 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.
[0034] Reference Figures 2 to 4 This utility model provides an embodiment of a concrete mixer for high-strength concrete production, comprising a mixing drum 1, which serves as a container for holding and initially integrating various raw materials. A feeding mechanism is fixedly connected to the top of the mixing drum 1, used to precisely control the input of raw materials. Multiple support legs 4 are fixedly connected to the bottom of the mixing drum 1, and a support plate 5 is fixedly connected to the bottom of each support leg 4. The support legs 4 are evenly distributed on the top of the support plate 5, thereby distributing the weight of the equipment and enhancing the stability of the mixing drum 1. A mixing mechanism is fixedly connected to the top of the support plate 5, and a discharge mechanism is fixedly connected to the outside of the mixing drum 1, responsible for outputting the finished product. An angle adjustment mechanism is fixedly connected to the bottom of the support plate 5, allowing for flexible adjustment of the equipment's posture to adapt to different working conditions.
[0035] The mixing mechanism includes a servo motor 6, the bottom of which is fixedly connected to the top of a support plate 5. The servo motor 6 is secured to the top of the support plate 5 with high-strength bolts, allowing for flexible adjustment of the output speed according to different concrete formulas and mixing stages. This prevents uneven mixing or over-mixing of raw materials due to improper speed, effectively ensuring stable concrete quality. A support frame 7 is fixedly connected to the top of the support plate 5, providing mounting and support points for subsequent structures. A transmission device 8 is fixedly connected to the top of the support frame 7, transmitting the power of the servo motor 6 to the subsequent mixing mechanism. One end of the transmission device 8 is fixedly connected to two rollers 9, one at the output end of the servo motor 6. A belt 10 is coupled to the outer side of one roller 9, and the inner side of the belt 10 is coupled to the outer side of the other roller 9. The cooperation of the belt 10 and the rollers 9 efficiently and smoothly transmits the power generated by the servo motor 6 to the other roller 9, thereby achieving deceleration, acceleration, or torque adjustment to meet the working requirements of the circulating mixing assembly. The other end of the transmission device 8 is fixedly connected to the circulating mixing assembly.
[0036] The circulating mixing assembly includes a drive rod 11, one end of which is fixedly connected to the other end of a transmitter 8. The drive rod 11 transmits the rotational power of the transmitter 8 to the subsequent circulating mixing assembly. Multiple mounting blocks 12 are fixedly connected to the outer wall of the drive rod 11. The mounting blocks 12 are used to mount subsequent structures, allowing them to rotate synchronously with the mounting blocks 12. Two connecting rods 13 are fixedly connected to the outer wall of the mounting blocks 12, transmitting the rotation of the mounting blocks 12 to the subsequent structures. A first stirring ring 14 is fixedly connected to the other end of one of the connecting rods 13, and a second stirring ring 15 is fixedly connected to the other end of the other connecting rods 13. Both the first stirring ring 14 and the second stirring ring 15 are helical, arranged in a double helix. When the drive rod 11 rotates, the double helical stirring rings rotate at high speed. Guided by the helical structure, the material moves circumferentially while tumbling axially, achieving all-round, multi-level circulating mixing. Compared to conventional mixing structures, the double-helix design significantly improves mixing efficiency, allowing cement, sand, gravel, additives, and other raw materials to mix quickly and evenly, fully activating the activity of each component and laying a solid foundation for the formation of high-strength concrete. The other end of the transmission rod 11 is rotatably connected to a retainer 16, the outer wall of which is fixedly connected to the outer wall of the mixing drum 1, thereby assisting the transmission rod 11 in stable rotation and reducing swaying and shaking during operation.
[0037] The feeding mechanism includes a feeding box 2, the bottom of which is fixedly connected to the top of the mixing drum 1. The bottom of the feeding box 2 is connected to the top of the mixing drum 1 via a sealed weld, forming a closed feeding channel to prevent raw material dust from escaping. Two feeding ports 3 are fixedly connected to the top of the feeding box 2, facilitating the simultaneous addition of different types of raw materials. Operators can accurately and quickly add cement, aggregates, admixtures, etc., according to the formula. The discharging mechanism includes a discharge port 17, the outer wall of which is fixedly connected to the outside of the mixing drum 1. The outer wall of the discharge port 17 is firmly welded to the outside of the mixing drum 1, ensuring the sealing and structural strength of the connection. A threaded plug 18 is threadedly connected to the inner wall of the discharge port 17, with a tight thread engagement and easy removal of the threaded plug 18. A sealing ring 19 is fixedly connected to the outer wall of the threaded plug 18. An annular groove is opened on the outer wall of the outlet 17. The outer wall of the sealing ring 19 is detachably connected to the inside of the annular groove. The sealing ring 19 can be accurately embedded in the annular groove to maintain the sealing effect, prevent concrete slurry from seeping out, ensure site cleanliness, and reduce material loss.
[0038] Reference Figure 1 , Figure 2 , Figure 5The angle adjustment mechanism includes a connecting block 20, the top of which is fixedly connected to the bottom of the support plate 5. The connecting block 20 can withstand various vibrations and stresses generated during equipment operation, while simultaneously ensuring greater stability of the entire support plate 5's rotation. Two fixed piles 21 are rotatably connected to both ends of the connecting block 20. The fixed piles 21 work in conjunction with the connecting block 20 to allow the support plate 5 to rotate around the axis between the two fixed piles 21. A base plate 22 is fixedly connected to the bottom of the two fixed piles 21. The base plate 22 directly contacts the ground or equipment base, distributing the equipment weight over a large area, reducing pressure per unit area, and preventing the equipment from sinking or tilting. Two fixed piles 23 are fixedly connected to the top of the base plate 22, providing installation support points for subsequent structures.
[0039] Two fixed piles 23 are rotatably connected to a dual-head motor 24 on their adjacent sides. The dual-head motor 24 has the unique advantage of bidirectional synchronous power output, which can precisely control the output torque and speed on both sides to adapt to different working conditions. Two rotating plates 25 are fixedly connected to the two output ends of the dual-head motor 24, and the rotating plates 25 are controlled to rotate by the dual-head motor 24. The other end of the rotating plates 25 is rotatably connected to a rotating plate 26, which is used to transmit the rotation of the rotating plates 25 to the subsequent structure to ensure stable upward transmission of power. A connecting block 27 is rotatably connected to the adjacent sides of the two rotating plates 26. The top of the connecting block 27 is fixedly connected to the bottom of the support plate 5. When the dual-head motor 24 is started, the output shafts at both ends rotate synchronously, driving the rotating plates 25 to rotate around the connection point with the fixed piles 23. With the linkage of the rotating plates 25 and 26, the rotational motion is converted into the linear displacement and angular change of the connecting block 27, thereby pulling the support plate 5 and the mixing drum 1 to change the tilt angle.
[0040] Working principle: During use, the pre-mixed concrete raw materials are fed into the mixing drum 1 through the feed inlet 3, and then the double-head motor 24 is turned on. The operation of the double-head motor 24 drives the two rotating plates 1 25 to rotate, thereby driving the two rotating plates 26 to rotate synchronously. This causes the connecting plate 1 and connecting plate 2 to unfold, and the connecting block 1 20 provides a vertical upward force to one end of the support plate 5, thereby driving the support plate 5 to be lifted upward along the rotating axis point of the connecting block 2 27. In this way, during the mixing process, the raw materials inside the mixing drum 1 can fall down under the action of gravity, and then be lifted up by the cooperation of the mixing ring 1 14 and the mixing ring 2 15, thereby improving the mixing effect and preventing material leakage.
[0041] Then, the servo motor 6 is turned on. The operation of the servo motor 6 drives one of the rollers 9 to rotate, which in turn drives the other roller 9 to rotate through the belt 10. This drives the transmission rod 11 to rotate through the transmission device 8. The rotation of the transmission rod 11 drives the multiple connecting rods 13 to rotate through the mounting block 12. This drives the stirring ring 14 and stirring ring 25, which are arranged in a double helix, to rotate at high speed. Under the guidance of the helical structure, the material moves in the circumferential direction and rolls in the axial direction at the same time, realizing all-round and multi-level circulation mixing. This allows various raw materials to be mixed quickly and evenly, fully stimulating the activity of the components and consolidating the foundation for the formation of high-strength concrete.
[0042] During discharge, the dual-head motor 24 drives the two rotating plates 25 to rotate in opposite directions. This, through the transmission action of the rotating plate 26 and the connecting block 27, drives the entire support plate 5 to rotate downward, causing the entire mixing drum 1 to tilt downward. Then, the threaded plug 18 is rotated to open the discharge port 17. At the same time, the servo motor 6 drives the stirring ring 14 and the stirring ring 15 to rotate relative to each other. Thus, through the pushing action of the stirring ring 14 and the stirring ring 15 and the effect of the finished product's own weight, the finished product is discharged from the discharge port 17.
[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A concrete mixer for producing high-strength concrete, comprising a mixing drum (1), characterized in that: The top of the mixing drum (1) is fixedly connected to a feeding mechanism, the bottom of the mixing drum (1) is fixedly connected to multiple support legs (4), the bottom of the multiple support legs (4) is fixedly connected to a support plate (5), the top of the support plate (5) is fixedly connected to a mixing mechanism, the outside of the mixing drum (1) is fixedly connected to a discharge mechanism, and the bottom of the support plate (5) is fixedly connected to an angle adjustment mechanism. The stirring mechanism includes a servo motor (6), the bottom of which is fixedly connected to the top of the support plate (5). A support frame (7) is fixedly connected to the top of the support plate (5), and a transmission device (8) is fixedly connected to the top of the support frame (7). One end of the transmission device (8) is fixedly connected to two rollers (9) at the output end of the servo motor (6), and the other end of the transmission device (8) is fixedly connected to a circulating stirring assembly.
2. The concrete mixer for producing high-strength concrete according to claim 1, characterized in that: The circulating stirring assembly includes a transmission rod (11), one end of which is fixedly connected to the other end of the transmission device (8). Multiple mounting blocks (12) are fixedly connected to the outer wall of the transmission rod (11). Two connecting rods (13) are fixedly connected to the outer wall of the mounting blocks (12). A stirring ring (14) is fixedly connected to the other end of the multiple connecting rods (13), and a stirring ring (15) is fixedly connected to the other end of the other multiple connecting rods (13). A fixture (16) is rotatably connected to the other end of the transmission rod (11), and the outer wall of the fixture (16) is fixedly connected to the outer wall of the stirring drum (1).
3. The concrete mixer for producing high-strength concrete according to claim 1, characterized in that: The feeding mechanism includes a feeding box (2), the bottom of which is fixedly connected to the top of the mixing drum (1), and the top of the feeding box (2) is fixedly connected to two feeding ports (3).
4. The concrete mixer for producing high-strength concrete according to claim 1, characterized in that: The discharge mechanism includes a discharge port (17), the outer wall of which is fixedly connected to the outside of the mixing drum (1), and a threaded plug (18) is threadedly connected to the inner wall of the discharge port (17), and a sealing ring (19) is fixedly connected to the outer wall of the threaded plug (18).
5. The concrete mixer for producing high-strength concrete according to claim 1, characterized in that: The angle adjustment mechanism includes a connecting block 1 (20), the top of which is fixedly connected to the bottom of the support plate (5). Two fixed posts 1 (21) are rotatably connected to both ends of the connecting block 1 (20). A base plate (22) is fixedly connected to the bottom of the two fixed posts 1 (21). Two fixed posts 2 (23) are fixedly connected to the top of the base plate (22). A double-headed motor (24) is rotatably connected to the adjacent side of the two fixed posts 2 (23). Two rotating plates 1 (25) are fixedly connected to the two output ends of the double-headed motor (24). A rotating plate 2 (26) is rotatably connected to the other end of the rotating plate 1 (25). A connecting block 2 (27) is rotatably connected to the adjacent side of the two rotating plates 2 (26). The top of the connecting block 2 (27) is fixedly connected to the bottom of the support plate (5).
6. The concrete mixer for producing high-strength concrete according to claim 4, characterized in that: The outer wall of the discharge port (17) is provided with an annular groove, and the outer wall of the sealing ring (19) is detachably connected to the inside of the annular groove.
7. The concrete mixer for producing high-strength concrete according to claim 2, characterized in that: Both the first stirring ring (14) and the second stirring ring (15) are spiral-shaped, and the first stirring ring (14) and the second stirring ring (15) are arranged in a double spiral.
8. The concrete mixer for producing high-strength concrete according to claim 1, characterized in that: One of the rollers (9) is coupled to the outer side of a belt (10), and the inner side of the belt (10) is coupled to the outer side of another roller (9).