Efficient concrete mixing blade structure

By designing wear-resistant protective frames and arc-shaped wear-resistant blocks on the stirring blades, combined with threaded connections and snap-fit ​​structures, the problem of rapid wear of the stirring blades is solved, thereby improving the wear resistance and efficiency of the stirring blades, extending their service life and reducing maintenance costs.

CN224183374UActive Publication Date: 2026-05-01XIYU HYDRAULIC CONCRETE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIYU HYDRAULIC CONCRETE CO LTD
Filing Date
2025-05-28
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing concrete mixing blades experience accelerated wear due to high friction during mixing, resulting in a short service life and frequent replacements, which affects work efficiency and costs.

Method used

The design incorporates a wear-resistant protective frame and an arc-shaped wear-resistant block for fixed connection with the stirring blade assembly. The combination of threaded connection and snap-fit ​​structure enhances wear resistance, while the use of movable sleeves and reinforcing strips improves the structural strength and flexibility of the bottom stirring assembly.

Benefits of technology

It effectively reduces wear on the mixing blades, extends service life, improves mixing efficiency, reduces maintenance costs, and enhances equipment applicability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an efficient concrete mixing blade structure, which relates to the technical field of concrete mixing and comprises a transmission shaft and a mixing blade component, a positioning sleeve is mounted on the transmission shaft, the mixing blade component is mounted on the positioning sleeve, and wear-resistant protective frames are mounted on the front side and the rear side of the mixing blade component. Arc-shaped wear-resistant blocks are mounted on the sides, away from the transmission shaft, of the stirring blade assemblies; a limiting ring is installed below the transmission shaft, threaded rods are installed on the left side and the right side of the lower portion of the limiting ring, the lower portion of the transmission shaft is sleeved with a movable sleeve, and a bottom stirring assembly is installed on the movable sleeve. According to the efficient concrete mixing blade structure, through the design of the wear-resistant protection frame, the arc-shaped wear-resistant blocks and the wear-resistant pieces, the mixing blade assembly is protected in all directions, wear of concrete to the mixing blade assembly is effectively reduced, the service life of the mixing blade assembly is prolonged, the replacement frequency is reduced, and the cost is saved.
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Description

A high-efficiency concrete mixing blade structure Technical Field

[0001] This utility model relates to the field of concrete mixing technology, specifically to a high-efficiency concrete mixing blade structure. Background Technology

[0002] In the field of construction engineering, concrete is one of the most widely used building materials, and its performance directly affects the strength, durability, and stability of building structures. Concrete mixing is a crucial step in ensuring its quality, and the mixing blades, as the core component of a concrete mixer, have a decisive impact on the uniformity, efficiency, and energy consumption of concrete mixing. With the rapid development of the construction industry and the continuous expansion of infrastructure construction, the demand for concrete is increasing daily, while simultaneously placing higher demands on the quality and efficiency of concrete mixing.

[0003] For example, Chinese utility model patent application number 202020950512.5 discloses a wear-resistant mixing blade for concrete mixer trucks. The design features a sliding rod that facilitates convenient and quick disassembly of the mixing blade, ensuring its effective mixing of the concrete and reducing the time spent replacing the blades, thus improving the efficiency of the device. The inclusion of high-temperature resistant, corrosion-resistant, and wear-resistant layers extends the service life of the mixing blade. However, the device still has certain shortcomings.

[0004] When mixing concrete, the concrete rubs against the mixing blades, generating significant friction. This accelerates the wear of the mixing blades, reduces their lifespan, and necessitates frequent replacement.

[0005] Therefore, we propose a high-efficiency concrete mixing blade structure to address the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a high-efficiency concrete mixing blade structure to solve the problem mentioned in the background art that, when mixing concrete, the friction between the concrete and the mixing blade generates a large frictional force, which accelerates the wear of the mixing blade, reduces the service life of the mixing blade, and requires frequent replacement of the mixing blade.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency concrete mixing blade structure, including a drive shaft and a mixing blade assembly, wherein a positioning sleeve is installed on the drive shaft and the mixing blade assembly is installed on the positioning sleeve, wear-resistant protective frames are installed on both the front and rear sides of the mixing blade assembly, and arc-shaped wear-resistant blocks are installed on the side of the mixing blade assembly away from the drive shaft.

[0008] A limit ring is installed below the drive shaft, and threaded rods are installed on both the left and right sides below the limit ring. A movable sleeve is fitted below the drive shaft, and a bottom stirring assembly is installed on the movable sleeve.

[0009] Preferably, the stirring blade assembly has snap-fit ​​grooves on both the upper and lower sides, and threaded grooves on both the front and rear sides. Positioning bolts are installed on the wear-resistant protective frame, and the positioning bolts are threadedly connected to the threaded grooves.

[0010] The above structural design ensures that the wear-resistant protective frame is firmly installed, effectively preventing concrete from wearing down the sides of the mixing blade assembly. It also facilitates disassembly and replacement of the wear-resistant protective frame after it wears out, reducing maintenance costs and extending the overall service life of the mixing blade assembly.

[0011] Preferably, each of the wear-resistant protective frames is equipped with a snap-fit ​​block inside, which snaps into the snap-fit ​​groove on the stirring blade assembly.

[0012] The above structural design provides precise positioning during the installation of the wear-resistant protective frame, making the installation process simpler and more efficient, ensuring the accurate installation position of the wear-resistant protective frame, and thus better fulfilling its protective function.

[0013] Preferably, the arc-shaped wear-resistant block is fixedly connected to the stirring blade assembly, and wear-resistant plates are installed on both the upper and lower sides of the arc-shaped wear-resistant block.

[0014] The above structural design, with its arc-shaped wear-resistant blocks and wear-resistant plates that are in direct contact with the concrete, significantly improves the wear resistance of the mixing blade assembly's edges, reduces the wear of the edges by the concrete, extends the service life of the mixing blade assembly, and ensures the continuous and stable operation of the mixing process.

[0015] Preferably, the threaded rod is detachably connected to the limiting ring, and the limiting ring is fixedly connected to the drive shaft.

[0016] With the above structural design, the bottom stirring component can be easily removed when it is not needed, which increases the flexibility of the bottom stirring component structure. The structure can be adjusted according to actual stirring needs, thereby improving the applicability of the equipment.

[0017] Preferably, a reinforcing strip is installed on the bottom stirring assembly, and the reinforcing strip is fixedly connected to the bottom stirring assembly.

[0018] With the above structural design, during the mixing process, the bottom mixing component rotates with the movable sleeve to mix the bottom of the concrete. The reinforcing strips make it more durable and less prone to deformation or damage, which improves the mixing efficiency, extends the service life of the bottom mixing component, and reduces equipment maintenance and replacement costs.

[0019] Preferably, the movable sleeve has through holes on both the left and right sides, and the center line of the through holes coincides with the center line of the threaded rod. A movable ring is provided below the movable sleeve, and the movable ring is sleeved on the threaded rod. A limit nut is installed on the threaded rod.

[0020] The above structural design facilitates the installation and positioning of the bottom stirring assembly. The position of the movable sleeve and movable ring can be fixed by adjusting the limit nut, ensuring that the bottom stirring assembly is installed firmly and that it works normally during the stirring process.

[0021] Compared with the prior art, the beneficial effects of this utility model are: the structure of this high-efficiency concrete mixing blade:

[0022] 1. Improve the wear resistance of the mixing blade assembly and extend its service life: The design of the wear-resistant protective frame, arc-shaped wear-resistant blocks and wear-resistant plates provides all-round protection for the mixing blade assembly, effectively reducing the wear of concrete on the mixing blade assembly, extending the service life of the mixing blade assembly, reducing the replacement frequency, and saving costs.

[0023] 2. Improved mixing efficiency: During the mixing process, the bottom mixing component rotates together with the movable sleeve to mix the bottom of the concrete, which improves the mixing efficiency of the concrete. The reinforcing strip is fixedly connected to the bottom mixing component, which enhances the structural strength of the bottom mixing component, making it more durable and less prone to deformation or damage during the mixing process. Attached Figure Description

[0024] Figure 1 is a schematic diagram of the overall main structure of this utility model;

[0025] Figure 2 is a schematic diagram of the overall bottom view of this utility model;

[0026] Figure 3 is a schematic diagram of the structure of the wear-resistant protective frame of this utility model during disassembly;

[0027] Figure 4 is a schematic diagram of the snap-fit ​​groove structure of this utility model;

[0028] Figure 5 is a structural diagram of the bottom stirring assembly of this utility model when it is disassembled.

[0029] In the diagram: 1. Drive shaft; 2. Positioning sleeve; 3. Agitator blade assembly; 4. Snap-fit ​​groove; 5. Threaded groove; 6. Wear-resistant protective frame; 7. Snap-fit ​​block; 8. Positioning bolt; 9. Arc-shaped wear-resistant block; 10. Wear-resistant plate; 11. Limiting ring; 12. Threaded rod; 13. Movable sleeve; 14. Bottom agitator assembly; 15. Reinforcing strip; 16. Movable ring; 17. Limiting nut. Detailed Implementation

[0030] 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.

[0031] Please refer to Figures 1-5. This utility model provides a technical solution: a high-efficiency concrete mixing blade structure, including a drive shaft 1, a positioning sleeve 2, a mixing blade assembly 3, a snap-fit ​​groove 4, a threaded groove 5, a wear-resistant protective frame 6, a snap-fit ​​block 7, a positioning bolt 8, an arc-shaped wear-resistant block 9, a wear-resistant plate 10, a limiting ring 11, a threaded rod 12, a movable sleeve 13, a bottom mixing assembly 14, a reinforcing strip 15, a movable ring 16, and a limiting nut 17. The positioning sleeve 2 is installed on the drive shaft 1, and the mixing blade assembly 3 is installed on the positioning sleeve 2. Snap-fit ​​grooves 4 are provided on both the upper and lower sides of the mixing blade assembly 3, and threaded grooves 5 are provided on both the front and rear sides of the mixing blade assembly 3. Positioning bolts 8 are installed on the wear-resistant protective frame 6, and the positioning bolts 8 are threadedly connected to the threaded grooves 5. During the rotation of the mixing blade assembly 3, the wear-resistant protective frames 6 on the front and rear sides can effectively block the direct impact and wear of concrete on the sides of the mixing blade assembly 3. The wear-resistant protective frame 6 is connected to the mixing blade assembly 3 by the internal snap-fit ​​block 7. The blade assembly 3 is engaged with the snap-fit ​​groove 4, and simultaneously connected to the threaded groove 5 on the front and rear sides of the mixing blade assembly 3 by the positioning bolt 8. This double fixing method ensures that the wear-resistant protective frame 6 is firmly installed and facilitates disassembly and replacement of the wear-resistant protective frame 6. Wear-resistant protective frames 6 are installed on both the front and rear sides of the mixing blade assembly 3. The inside of each wear-resistant protective frame 6 is equipped with snap-fit ​​blocks 7, which engage with the snap-fit ​​groove 4 on the mixing blade assembly 3. The engagement of the snap-fit ​​blocks 7 on the wear-resistant protective frame 6 with the snap-fit ​​groove 4 on the mixing blade assembly 3 facilitates positioning during installation of the wear-resistant protective frame 6. Furthermore, an arc-shaped wear-resistant block 9 is installed on the side of the mixing blade assembly 3 away from the drive shaft 1. The arc-shaped wear-resistant block 9 is fixedly connected to the mixing blade assembly 3. Wear-resistant plates 10 are installed on the upper and lower sides of the arc-shaped wear-resistant block 9. The arc-shaped wear-resistant block 9 and the wear-resistant plates 10 are in direct contact with the concrete, which improves the wear resistance of the edge of the mixing blade assembly 3 and reduces the degree of wear on the edge of the mixing blade assembly 3 by the concrete.

[0032] A limiting ring 11 is installed below the drive shaft 1, and threaded rods 12 are installed on both the left and right sides below the limiting ring 11. The threaded rods 12 are detachably connected to the limiting ring 11, and the limiting ring 11 is fixedly connected to the drive shaft 1. When the bottom mixing assembly 14 is not needed, the threaded rods 12 can be removed from the limiting ring 11. A movable sleeve 13 is fitted below the drive shaft 1, and a bottom mixing assembly 14 is installed on the movable sleeve 13. A reinforcing strip 15 is installed on the bottom mixing assembly 14 and is fixedly connected to the bottom mixing assembly 14. During the mixing process, the bottom mixing assembly 14 rotates together with the movable sleeve 13 to mix the bottom of the concrete, improving the mixing efficiency of the concrete. The fixed connection of the reinforcing strip 15 to the bottom mixing assembly 14 enhances the structural strength of the bottom mixing assembly 14, making it more durable during the mixing process. It is not easily deformed or damaged. The movable sleeve 13 has through holes on both the left and right sides, and the center line of the through holes coincides with the center line of the threaded rod 12. A movable ring 16 is provided below the movable sleeve 13. The movable ring 16 is sleeved on the threaded rod 12. A limit nut 17 is installed on the threaded rod 12. When installing the bottom stirring assembly 14, the entire stirring mechanism is removed. Then, the movable sleeve 13 on the bottom stirring assembly 14 is sleeved on the drive shaft 1, and the movable sleeve 13 passes through the threaded rod 12 on the limit ring 11, so that the movable sleeve 13 abuts against the limit ring 11. Then, the movable ring 16 is sleeved on the threaded rod 12, so that the movable ring 16 abuts against the movable sleeve 13. Then, the limit nut 17 is installed on the threaded rod 12. The limit nut 17 limits the movable ring 16 and the movable sleeve 13, thereby completing the installation of the bottom stirring assembly 14.

[0033] Working principle: When using this high-efficiency concrete mixing blade structure, firstly, during the rotation of the mixing blade assembly 3, the wear-resistant protective frames 6 on the front and rear sides can effectively block the direct impact and wear of concrete on the sides of the mixing blade assembly 3. The wear-resistant protective frames 6 are engaged with the snap-fit ​​grooves 4 on the mixing blade assembly 3 through the internal snap-fit ​​blocks 7, and at the same time, they are threadedly connected to the threaded grooves 5 on the front and rear sides of the mixing blade assembly 3 by the positioning bolts 8. The double fixing method ensures that the wear-resistant protective frames 6 are firmly installed, and at the same time facilitates the disassembly and replacement of the wear-resistant protective frames 6.

[0034] When installing the bottom stirring assembly 14, the entire stirring mechanism is removed. Then, the movable sleeve 13 on the bottom stirring assembly 14 is fitted onto the drive shaft 1, and the movable sleeve 13 passes through the threaded rod 12 on the limiting ring 11, so that the movable sleeve 13 abuts against the limiting ring 11. Then, the movable ring 16 is fitted onto the threaded rod 12, so that the movable ring 16 abuts against the movable sleeve 13. Then, the limiting nut 17 is installed on the threaded rod 12. The limiting nut 17 limits the movable ring 16 and the movable sleeve 13, thereby completing the installation of the bottom stirring assembly 14.

[0035] During the mixing process, the bottom mixing component 14 rotates together with the movable sleeve 13 to mix the bottom of the concrete, improving the mixing efficiency. The reinforcing strip 15 is fixedly connected to the bottom mixing component 14, enhancing its structural strength and making it more durable and less prone to deformation or damage during mixing, thus completing a series of tasks. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0036] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency concrete mixing blade structure, comprising a drive shaft (1) and a mixing blade assembly (3), wherein a positioning sleeve (2) is mounted on the drive shaft (1), and the mixing blade assembly (3) is mounted on the positioning sleeve (2), characterized in that: Wear-resistant protective frames (6) are installed on both the front and rear sides of the stirring blade assembly (3), and arc-shaped wear-resistant blocks (9) are installed on the side of the stirring blade assembly (3) away from the drive shaft (1); a limit ring (11) is installed below the drive shaft (1), and threaded rods (12) are installed on both the left and right sides below the limit ring (11); a movable sleeve (13) is sleeved below the drive shaft (1), and a bottom stirring assembly (14) is installed on the movable sleeve (13).

2. The high-efficiency concrete mixing blade structure according to claim 1, characterized in that: The stirring blade assembly (3) has snap-fit ​​grooves (4) on both the upper and lower sides, and threaded grooves (5) on both the front and rear sides. The wear-resistant protective frame (6) is equipped with positioning bolts (8), which are threadedly connected to the threaded grooves (5).

3. The high-efficiency concrete mixing blade structure according to claim 2, characterized in that: The wear-resistant protective frame (6) is equipped with snap-fit ​​blocks (7) inside, which snap-fit ​​blocks (7) are engaged with snap-fit ​​grooves (4) on the stirring blade assembly (3).

4. The high-efficiency concrete mixing blade structure according to claim 1, characterized in that: The arc-shaped wear-resistant block (9) is fixedly connected to the stirring blade assembly (3), and wear-resistant plates (10) are installed on both the upper and lower sides of the arc-shaped wear-resistant block (9).

5. The high-efficiency concrete mixing blade structure according to claim 1, characterized in that: The threaded rod (12) is detachably connected to the limiting ring (11), and the limiting ring (11) is fixedly connected to the drive shaft (1).

6. The high-efficiency concrete mixing blade structure according to claim 1, characterized in that: A reinforcing strip (15) is installed on the bottom stirring assembly (14), and the reinforcing strip (15) is fixedly connected to the bottom stirring assembly (14).

7. The high-efficiency concrete mixing blade structure according to claim 1, characterized in that: The movable sleeve (13) has through holes on both the left and right sides, and the center line of the through holes coincides with the center line of the threaded rod (12). A movable ring (16) is provided below the movable sleeve (13), and the movable ring (16) is sleeved on the threaded rod (12). A limit nut (17) is installed on the threaded rod (12).

Citation Information

Patent Citations

  • Wear-resistant stirring blade special for concrete mixer truck

    CN213440409U