Adjustable variable-angle type wing-shaped stirring paddle

Abstract

The invention provides an adjustable variable angle type wing-shaped stirring paddle which can be used for mixing and stirring solid and liquid. The stirring paddle is mainly composed of a stirring shaft, a paddle blade and an angle regulator, different pairs of holes are designed in the angle regulator according to a proper angle range and used for mounting and fixing the paddle blade, and each pair of holes corresponds to one mounting angle parameter of the paddle blade. The paddles can be mounted in different pairs of holes of the regulator to realize different effective sectional areas during stirring, so that different acting forces such as shearing force and axial force are generated, and different stirring effects are realized. According to the invention, the structure is innovative in the aspect of adjusting the mounting angle of the wing-shaped paddle, the mounting angle of the paddle is adjusted by adjusting the hole mounting position of the paddle according to task requirements, the problem that the paddle of the stirrer is too many and is difficult to manage is solved, and the manufacturing and maintenance cost of the paddle is reduced to a certain extent.

Description

Technical Field

[0001] The present invention relates to the technical field related to fluid stirring, and in particular to an adjustable angle-variable wing-shaped stirring paddle. Background Art

[0002] During industrial solid-liquid mixing, the structural design of the impeller affects the fluid flow distribution and energy transfer efficiency, which in turn affects the efficiency of solid-liquid mixing. Traditional impellers, such as pitched-blade impellers, typically have fixed blade mounting angles, making them difficult to meet multitasking requirements under complex working conditions. Summary of the Invention

[0003] In response to the shortcomings of the existing technology, the present invention proposes an adjustable variable-angle airfoil stirring paddle, which realizes the function of adjustable blade installation angle through structural design, thereby enabling the stirring paddle to meet the multi-task requirements in solid-liquid mixing.

[0004] An adjustable variable angle airfoil impeller mainly consists of an agitator shaft, a blade, and an angle adjuster. The angle adjuster is designed with different pairs of holes according to the appropriate angle range for the installation and fixation of the blade. Each pair of holes corresponds to a mounting angle parameter of the blade. The specific structure is as follows:

[0005] The angle adjuster is a structure for adjusting the installation angle of the blade and also a structure for connecting the stirring shaft and the blade. It mainly includes a connecting mounter, a connecting shaft, a bearing, a spring and a hole mounter.

[0006] The end hole of the connector near the agitator shaft is internally threaded, threadedly connected to the external thread at the end of the agitator shaft, allowing the angle adjuster to be removably mounted on the agitator shaft. A through-hole is machined on the other side of the connector, into which the bearing is mounted. The bearing is positioned and secured by a shoulder and a bearing retaining ring, and the inner ring of the bearing mates with the connecting shaft. A hook structure is machined into the end of the connecting shaft. A tension spring secures the hook at the end of the paddle blade to the hook at the end of the connecting shaft.

[0007] In addition to connecting the blades to the connecting shaft via a tension spring, two mounting pins are designed at the ends of the blades for insertion into the holes of the angle adjuster to further stabilize the blades. Different holes correspond to different blade installation angles, which need to be determined based on the mission requirements and liquid viscosity to generate different forces on the liquid during solid-liquid mixing, such as thrust and shear force. After installation, unused holes and other holes need to be sealed.

[0008] The blades are airfoil blades, using NACA series airfoils as airfoil cross-section units. This type of airfoil can effectively generate fluid forces such as thrust and shear force in solid-liquid mixing conditions.

[0009] Beneficial effects: The adjustable blade installation angle enables the agitator blade to select a suitable installation angle according to the material properties and task objectives. By dynamically adapting to different working conditions, it can improve the fluid flow field distribution, enhance the solid-liquid mixing effect, and significantly improve the task adaptability and applicability of the mixing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram of an adjustable variable-angle airfoil stirring impeller;

[0011] Figure 2 for the stirring paddle blade;

[0012] Figure 3 It is a hole mounter;

[0013] Figure 4 This is a schematic diagram of the hole alignment of the hole mounter;

[0014] Figure 5 This is the model diagram of the stirring paddle (position 1);

[0015] Figure 6 This is the model diagram of the stirring paddle (position 2); DETAILED DESCRIPTION

[0016] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings and implementation examples. However, the scope of protection of the present invention is not limited by the specific implementation methods. Obviously, the implementation examples described are only part of the implementation examples of the present invention, not all of the implementation examples.

[0017] like Figure 1 As shown in FIG, a schematic diagram of an adjustable variable angle airfoil stirring impeller includes a stirring shaft 1, a blade 2 and an angle adjuster 3. Figure 2 The following figure shows the impeller blade. Figure 3 As shown, the angle adjuster 3 serves as a structure for adjusting the installation angle of the blade 2 and also as a structure for connecting the stirring shaft 1 and the blade 2. The angle adjuster 3 includes a connecting mounter 31, a connecting shaft 32, a bearing 33, a tension spring 34 and a hole mounter 35.

[0018] The end hole of the connector 31 close to the stirring shaft 1 is processed with an internal thread, and the angle adjuster 3 is detachably installed on the stirring shaft 1 by threaded connection with the external thread at the end of the stirring shaft 1; a through hole is processed on the other side of the connector 31, and the bearing 33 is installed on the through hole. The bearing 33 is positioned and fixed by the shaft shoulder and the bearing retaining ring, and the inner ring of the bearing cooperates with the connecting shaft 32, and a hook structure is processed at the end of the connecting shaft 32; the hook 22 at the end of the blade 2 is fixedly connected to the hook at the end of the connecting shaft 32 by a tension spring 34, and the tension spring 34 needs to pass through the through hole structure 351 of the hole mounter 35.

[0019] In addition to connecting the blade 2 and the connecting shaft 32 through the tension spring 34, two mounting pins 21 are designed at the end of the blade 2 for inserting into the matching holes 352 of the angle adjuster 3 to further stabilize the blade 2. Different matching holes correspond to different blade installation angles, which need to be determined according to the task requirements and the viscosity of the liquid to generate different force forms on the liquid during solid-liquid mixing, such as thrust, shear force, etc. Figure 4 The figure shows the hole-matching diagram of the hole-matching installer. After installation, the unused holes and other holes need to be sealed.

[0020] Blade 2 is an airfoil blade, which adopts NACA series airfoil as the airfoil cross-section unit. This type of airfoil can effectively generate fluid forces such as thrust and shear force in solid-liquid mixing conditions.

[0021] like Figure 5 and Figure 6 The following are schematic diagrams of the model when the blades are installed in different hole positions. The specific hole installation position of the blades needs to be analyzed and determined based on the mission requirements.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that some local modifications or changes may be made without departing from the principles and essential features of the present invention, all of which fall within the scope of protection of the present invention. Therefore, from all perspectives, the embodiments should be considered as exemplary and non-limiting, and the scope of the present invention is determined by the appended claims. The present invention does not cover parts that are identical to or can be implemented using existing technologies.

Claims

1. An adjustable variable angle airfoil stirring impeller, characterized by: The agitator mainly consists of a stirring shaft, a blade and an angle adjuster. The angle adjuster is designed with different pairs of holes according to the appropriate angle range for installing and fixing the blade, where each pair of holes corresponds to an installation angle parameter of the blade.

2. The adjustable variable angle airfoil stirring impeller according to claim 1, characterized in that: The angle adjuster serves as a structure for adjusting the installation angle of the blade and also as a structure for connecting the stirring shaft and the blade, and mainly includes a connecting mounter, a connecting shaft, a bearing, a spring and a hole mounter.

3. The angle adjuster according to claim 2, characterized in that: The end hole of the connecting mounter close to the stirring shaft is processed with an internal thread, which is threadedly connected to the external thread at the end of the stirring shaft, so that the angle adjuster can be detachably installed on the stirring shaft; a through hole is processed on the other side of the connecting mounter, and the bearing is installed on the through hole. The bearing is positioned and fixed by the shaft shoulder and the bearing retaining ring, and the inner ring of the bearing cooperates with the connecting shaft, and a hook structure is processed at the end of the connecting shaft; the hook at the end of the blade is fixedly connected to the hook at the end of the connecting shaft by a tension spring.

4. The structure of the blade end according to claim 3, characterized in that: In addition to connecting the blade and the connecting shaft through a tension spring, the blade end is designed with two mounting pins for inserting into the matching holes of the angle adjuster to further stabilize the blade. Different matching holes correspond to different blade installation angles, which need to be determined according to task requirements and liquid viscosity to generate different force forms on the liquid during solid-liquid mixing, such as thrust, shear force, etc. After installation is complete, unused holes and other holes need to be sealed.

5. The adjustable variable angle airfoil stirring impeller according to claim 1, characterized in that: The blade is an airfoil blade, and adopts a NACA series airfoil as an airfoil cross-section unit. This type of airfoil can effectively generate fluid forces such as thrust and shear force in solid-liquid mixing conditions.

Images