A kettle paddle structure with a scraping structure

Abstract

The utility model discloses a kind of mixing kettle stirring paddle structures with scraping structure, comprising: main shaft, the two sides of the main shaft are evenly distributed with four groups of stirring rod, the shaft body of the main shaft is vertically provided with first sliding slot, the inside sliding connection of the first sliding slot has push rod, the two sides sliding connection of the push rod has receiving ring, the outside of the receiving ring is detachably installed with mounting ring, the outside of the mounting ring is fixed with scraper, the top end of the main shaft is fixed with driven pulley, transmission belt is provided on the driven pulley, the rotatory stirring of stirring rod is combined with the liftable scraping structure of scraper, without replacing stirring component, it can adapt to different viscosity material processing needs from thin to viscous, solve the functional limitation of traditional single structure stirring paddle. Avoid frequent shutdown and replace the operation of stirring paddle, reduce production interruption time, reduce worker labor intensity, significantly improve production continuity and overall efficiency.

Description

Technical Field

[0001] This utility model relates to the field of blending kettle technology, specifically to a blending kettle stirring paddle structure with a scraping structure. Background Technology

[0002] Mixing tanks are key equipment widely used in industries such as oils, coatings, and pharmaceuticals for material mixing and reactions. The structure of its core component, the agitator, directly determines the mixing efficiency and quality of the materials. In actual production processes, the physical properties of the materials processed vary significantly, with a wide range of viscosity. This characteristic places different functional requirements on the agitator: for high-viscosity, easily adhesive materials, anchor-type or frame-type agitators equipped with wall-scraping functions are usually required to prevent material deposition and crusting on the inner wall of the tank and to enhance heat transfer and mixing effects. However, for low-viscosity materials with good flowability, such wall-scraping blades may generate excessive flow resistance due to their structural characteristics, increasing power consumption. In this case, simple and efficient paddle or turbine agitators are more suitable.

[0003] Currently, the industry generally uses a single-function agitator structure. This forces manufacturers to frequently stop and restart equipment to replace matching agitators when processing materials of different viscosities in order to achieve optimal processing results. This process is not only cumbersome and time-consuming, but also seriously affects the continuity and efficiency of production and increases the labor intensity of workers. To address this, we propose an agitator structure for blending kettles with a scraping mechanism. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a mixing vessel stirring paddle structure with a scraping structure, comprising: a main shaft, four sets of stirring rods evenly distributed on both sides of the main shaft, a first sliding groove vertically formed on the shaft body of the main shaft, a push rod slidably connected inside the first sliding groove, receiving rings slidably connected on both sides of the push rod, an installation ring detachably mounted on the outer side of the receiving ring, a scraper fixed on the outer side of the installation ring, a driven pulley fixed at the top end of the main shaft, a transmission belt provided on the driven pulley, a driving pulley provided on the inner ring of one side of the transmission belt, a rotating shaft fixed at the center hole of the driving pulley, a motor fixed at the top of the rotating shaft, and a hydraulic rod inserted through the top of the first sliding groove.

[0005] As a preferred technical solution of this utility model, a second sliding groove is provided in the middle of the inner ring of the receiving ring, and the second sliding groove is slidably connected to both ends of the push rod.

[0006] In a preferred embodiment of this invention, the piston end of the hydraulic rod is rotatably connected to the center of the top end of the push rod via a bearing.

[0007] In a preferred embodiment of this invention, the transmission belt is a synchronous toothed belt, and the driving pulley is connected to the driven pulley via the transmission belt.

[0008] As a preferred embodiment of this utility model, the scraper has a triangular cross-section, and the outer diameter of the scraper is fitted to the inner cavity of the mixing vessel.

[0009] As a preferred embodiment of this utility model, the width of the push rod matches the inner radial direction of the first groove.

[0010] As a preferred embodiment of this utility model, the top ends of the rotating shaft and the main shaft are rotatably connected to the top cover of the mixing vessel via bearings, and the cylinders of the motor and the hydraulic rod are fixed to the top of the top cover of the mixing vessel via bolts.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] (1) Multifunctional adaptability, improving production efficiency: By combining the rotating stirring of the stirring rod with the lifting and scraping structure of the scraper, it can adapt to the processing needs of materials with different viscosities from thin to viscous without changing the stirring parts, which solves the functional limitations of traditional single-structure stirring paddles. It avoids the operation of frequently stopping to change stirring paddles, reduces production interruption time, reduces the labor intensity of workers, and significantly improves production continuity and overall efficiency.

[0013] (2) Optimize mixing quality: When dealing with viscous materials, the up-and-down movement of the scraper can not only effectively scrape off the deposits on the vessel wall, but also enhance the convection mixing of the upper and lower layers of materials. Combined with the rotation and shearing of the stirring rod, it greatly improves the uniformity of material mixing.

[0014] (3) Structural stability and convenience: The sliding fit between the first slide and the push rod, the second slide, and the rotational isolation design of the bearing connection ensure the coordinated stability of power transmission and scraping action, and reduce interference and wear between components. Through the coordinated control of the motor and the hydraulic rod, the stirring and scraping actions can be flexibly switched to adapt to the changes in material characteristics at different process stages. The operation is simple and easy to automate. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the pulley of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the receiving ring of this utility model.

[0021] In the diagram: 1. Main shaft; 2. Stirring rod; 3. First chute; 4. Push rod; 5. Receiving ring; 6. Second chute; 7. Mounting ring; 8. Scraper; 9. Driven pulley; 10. Transmission belt; 11. Drive pulley; 12. Rotating shaft; 13. Motor; 14. Hydraulic rod. Detailed Implementation

[0022] 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.

[0023] Example

[0024] Please see Figure 1-4 The present invention provides the following technical solution: a mixing vessel stirring paddle structure with a scraping structure, comprising: a main shaft 1, four sets of stirring rods 2 evenly distributed on both sides of the main shaft 1, a first sliding groove 3 vertically opened on the shaft body of the main shaft 1, a push rod 4 slidably connected inside the first sliding groove 3, a receiving ring 5 slidably connected on both sides of the push rod 4, an installation ring 7 detachably installed on the outer side of the receiving ring 5, a scraper 8 fixed on the outer side of the installation ring 7, a driven pulley 9 fixed at the top end of the main shaft 1, a transmission belt 10 provided on the driven pulley 9, a driving pulley 11 provided on the inner ring of one side of the transmission belt 10, a rotating shaft 12 fixed at the center hole of the driving pulley 11, a motor 13 fixed at the top of the rotating shaft 12, and a hydraulic rod 14 inserted through the top of the first sliding groove 3.

[0025] In order to achieve a sliding fit between the receiving ring 5 and the push rod 4, so that the push rod 4 can drive the receiving ring 5 to rise and fall synchronously when rotating with the main shaft 1, while avoiding jamming during the relative movement of the two and ensuring the smooth up and down movement of the scraping structure, in this embodiment, as a preferred technical solution of the present invention, a second sliding groove 6 is provided in the middle of the inner ring of the receiving ring 5, and the second sliding groove 6 is slidably connected to both ends of the push rod 4.

[0026] In order to isolate the rotational movement of the hydraulic rod 14 and the push rod 4, and to prevent the push rod 4 from rotating synchronously with the main shaft 1, thus preventing mechanical damage to the hydraulic rod 14 due to rotation, and at the same time ensuring that the hydraulic rod 14 can stably drive the push rod 4 to move up and down, in this embodiment, as a preferred technical solution of the present invention, the piston end of the hydraulic rod 14 is rotatably connected to the center of the top end of the push rod 4 through a bearing.

[0027] To ensure the accuracy and stability of power transmission and to prevent slippage between the driving pulley 11 and the driven pulley 9, and to ensure that the power of the motor 13 can be efficiently and synchronously transmitted to the main shaft 1 so that the main shaft 1 drives the stirring rod 2 to rotate stably, in this embodiment, as a preferred technical solution of the present invention, the transmission belt 10 is a synchronous toothed belt, and the driving pulley 11 is connected to the driven pulley 9 through the transmission belt 10.

[0028] To enhance the scraping effect of the scraper 8 on the inner wall of the mixing vessel, the triangular cross-section can reduce the resistance of the material to the scraper 8, while ensuring that the outer diameter of the scraper 8 is in close contact with the inner cavity of the vessel, so as to ensure that the viscous material adhering to the inner wall can be thoroughly scraped off and prevent the material from depositing and forming a crust. In this embodiment, as a preferred technical solution of the present invention, the cross-section of the scraper 8 is triangular, and the outer diameter of the scraper 8 is in close contact with the inner cavity of the mixing vessel.

[0029] To ensure the stability of the push rod 4 when sliding in the first slide groove 3, and to prevent the push rod 4 from shaking or deviating due to the mismatch between its width and the first slide groove 3, and to ensure that the push rod 4 can accurately drive the receiving ring 5 to rise and fall along the main shaft 1 axially, thereby improving the operational reliability of the scraping structure, in this embodiment, as a preferred technical solution of the present invention, the width of the push rod 4 matches the inner radial direction of the first slide groove 3.

[0030] In order to achieve stable rotational support for the rotating shaft 12 and the main shaft 1, reduce the frictional resistance during their rotation, and ensure the installation stability of the motor 13 and the hydraulic rod 14 by bolt fixing, so as to avoid vibration or displacement caused by loose parts during equipment operation and ensure the operational safety of the overall structure, in this embodiment, as a preferred technical solution of the present invention, the top ends of the rotating shaft 12 and the main shaft 1 are rotatably connected to the top cover of the mixing vessel by bearings, and the cylinders of the motor 13 and the hydraulic rod 14 are fixed to the top end of the top cover of the mixing vessel by bolts.

[0031] In summary, with the help of the above-described technical solution of this utility model,

[0032] Working principle: During installation, the hydraulic rod 14 is fixed to the center of the top of the mixing vessel cover with bolts. The motor 13 is installed on one side of the hydraulic rod 14, and its output end is connected to the rotating shaft 12 through a coupling. The rotating shaft 12 and the top of the main shaft 1 are rotatably connected to the top cover through bearings, forming a stable power support structure.

[0033] When processing thin materials, motor 13 drives shaft 12 to rotate, which in turn drives main shaft 1 to rotate synchronously via drive pulley 11, transmission belt 10, and driven pulley 9. Four sets of stirring rods 2 on both sides of main shaft 1 rotate with it, utilizing rotational shear force to achieve efficient stirring of low-viscosity materials. During this process, push rod 4 rotates synchronously with main shaft 1, but because the second sliding groove 6 inside the receiving ring 5 slides with push rod 4, and push rod 4 is connected to the piston end of hydraulic rod 14 via bearings, interference with hydraulic rod 14 is avoided. Simultaneously, scraper 8 remains stationary due to friction generated by its contact with the inner wall of the vessel, and does not participate in rotation, reducing additional resistance to thin materials.

[0034] When processing viscous materials, while the stirring rod 2 continues to rotate and stir, the hydraulic rod 14 is activated. Its piston end extends and retracts axially, driving the receiving ring 5 to rise and fall synchronously along the first sliding groove 3 of the main shaft 1 via the push rod 4. The mounting ring 7 and scraper 8 on the outer side of the receiving ring 5 move up and down accordingly. Utilizing the adhesion between the scraper 8 and the inner wall of the vessel, the viscous material adhering to the inner wall is scraped off, preventing sedimentation and crusting. Simultaneously, the up-and-down movement of the scraper 8 breaks up material stratification, accelerating the convection mixing of the upper and lower layers of material within the vessel, and improving the uniformity of stirring. The motor model mentioned above is 61K120RGN-CF. This motor model is for reference only and should meet the operational requirements.

[0035] Finally, it should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The above description is merely 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 mixing vessel stirring paddle structure with a scraping mechanism, characterized in that, include: The main shaft (1) has four sets of stirring rods (2) evenly distributed on both sides. The shaft body of the main shaft (1) has a first groove (3) vertically opened. The push rod (4) is slidably connected inside the first groove (3). The two sides of the push rod (4) are slidably connected to the receiving ring (5). The outer side of the receiving ring (5) is detachably installed with an installation ring (7). The outer side of the installation ring (7) is fixed with a scraper (8). The top end of the main shaft (1) is fixed with a driven pulley (9). The driven pulley (9) is provided with a transmission belt (10). The inner ring of one side of the transmission belt (10) is provided with a driving pulley (11). The center hole of the driving pulley (11) is fixed with a rotating shaft (12). The top of the rotating shaft (12) is fixed with a motor (13). The top of the first groove (3) is inserted with a hydraulic rod (14).

2. The mixing vessel stirring paddle structure with a scraping structure according to claim 1, characterized in that: The receiving ring (5) has a second groove (6) in the middle of its inner ring, and the second groove (6) is slidably connected to both ends of the push rod (4).

3. The mixing vessel stirring paddle structure with a scraping structure according to claim 1, characterized in that: The piston end of the hydraulic rod (14) is rotatably connected to the center of the top end of the push rod (4) via a bearing.

4. The mixing vessel stirring paddle structure with a scraping structure according to claim 1, characterized in that: The transmission belt (10) is a synchronous toothed belt, and the driving pulley (11) is connected to the driven pulley (9) through the transmission belt (10).

5. The mixing vessel stirring paddle structure with a scraping structure according to claim 1, characterized in that: The cross-section of the scraper (8) is triangular, and the outer diameter of the scraper (8) is in contact with the inner cavity of the mixing vessel.

6. The mixing vessel stirring paddle structure with a scraping structure according to claim 1, characterized in that: The width of the push rod (4) matches the inner radial direction of the first groove (3).

7. The mixing vessel stirring paddle structure with a scraping structure according to claim 1, characterized in that: The top ends of the rotating shaft (12) and the main shaft (1) are rotatably connected to the top cover of the mixing vessel through bearings, and the cylinders of the motor (13) and the hydraulic rod (14) are fixed to the top of the top cover of the mixing vessel through bolts.

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