Aluminum die-cast impeller with blade reinforcement structure for ship

Abstract

The utility model relates to impeller technical field discloses a marine aluminum die casting impeller with blade reinforcing structure, including installation cylinder, installation groove, wheel seat, installation cylinder fixed setting in the middle part of wheel seat, installation groove sets up in the inside of installation cylinder, be provided with clamping assembly, flow guide component, reinforcing component on the wheel seat, clamping assembly sets up on installation cylinder, flow guide component sets up on the wheel seat, reinforcing component sets up in flow guide component, the utility model discloses through cross clamping groove and installation rod cooperation, realize impeller and driving shaft firm connection, prevent skidding deviation, guarantee power transmission stability, the flow guide component in blade link wheel seat and installation cylinder, flow guide rod, male head guide fluid, reduce eddy current resistance, wheel seat outside flow guide column optimization flow direction, reduce blade impact vibration, the blade in the inside reinforcing component with light honeycomb block partition, light weight consider strength and fatigue resistance, overall consider multifunction, solve the problem that the flow guide is poor, and blade is vulnerable.

Description

Technical Field

[0001] This utility model relates to the field of impeller technology, specifically to a marine aluminum die-cast impeller with a blade-reinforced structure. Background Technology

[0002] In marine propulsion systems, marine die-cast aluminum impellers are core components of critical equipment such as centrifugal pumps and propulsion pumps, and their performance directly affects the ship's power output and operating efficiency. Marine impellers need to rotate at high speeds in complex fluid environments for extended periods, not only withstanding fluid pressure shocks but also requiring sufficient structural stability to cope with continuous torque effects. Therefore, stringent requirements are placed on the impeller's flow guidance effect and blade strength.

[0003] A patent document with publication number CN221568944U discloses an impeller for a marine centrifugal pump, comprising a disc. The front end face of the disc has a insertion groove and a mounting hole. The inner wall of the mounting hole has a mounting groove. An insertion block is slidably connected inside the insertion groove, and a blade is fixedly connected to the front end of the insertion block. A blocking cover is rotatably connected to the circumference of the disc, and a fixing component is provided on the circumference of the blocking cover. An insertion hole is also provided on the circumference of the blocking cover. This invention, by setting up the insertion groove, insertion hole, insertion block, and blocking cover, allows the blocking cover to be rotated when the blade needs to be replaced, aligning the insertion hole with the insertion groove. This facilitates the removal of the insertion block from the disc, making it easy to replace the blade. This eliminates the need to replace the entire impeller when the blade is damaged, reducing resource waste.

[0004] However, the above-mentioned solutions and existing technologies lack guiding components to enhance blade rotation. During the high-speed rotation of marine impellers, fluid is prone to forming eddies or turbulent flow patterns on the blade surface. Existing structures rely solely on the shape of the blades themselves for flow guidance, lacking targeted guiding components to optimize the fluid trajectory. This not only increases impeller rotational resistance and reduces power transmission efficiency, but also intensifies blade vibration due to uneven impact of the fluid on the blades. Long-term operation can easily cause blade fatigue damage. The lack of guiding components also makes it difficult for the blades to form stable force support when subjected to complex forces, affecting the overall operational stability and service life of the impeller.

[0005] Therefore, this utility model proposes a marine aluminum die-cast impeller with blade reinforcement structure to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a marine aluminum die-cast impeller with a blade reinforcement structure to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a marine aluminum die-cast impeller with a blade reinforcement structure, comprising an mounting cylinder, a mounting groove, and a wheel seat, wherein the mounting cylinder is fixedly disposed in the middle part of the wheel seat, and the mounting groove is disposed inside the mounting cylinder; The wheel seat is provided with a snap-fit ​​component, a flow guide component, and a reinforcing component. The snap-fit ​​component is disposed on the mounting cylinder, the flow guide component is disposed on the wheel seat, and the reinforcing component is disposed inside the flow guide component.

[0008] Preferably, the cross-shaped snap-fit ​​groove in the snap-fit ​​assembly is disposed inside the mounting groove, and the cross-shaped snap-fit ​​groove is mounted on the mounting rod.

[0009] Preferably, one end of the guide vane in the guide assembly is uniformly fixedly mounted on the wheel seat, and the other end of the guide vane is fixedly mounted on the outside of the mounting cylinder.

[0010] Preferably, a guide rod is fixedly installed on the guide blade in the guide assembly, and the guide rod is evenly distributed on the outer surface of the guide blade.

[0011] Preferably, the end of the guide rod in the guide assembly is provided with an arc-shaped guide protrusion, and the guide columns in the guide assembly are evenly installed on the outer side of the wheel seat.

[0012] Preferably, the reinforcing partition in the reinforcing assembly is uniformly disposed inside the guide vane, and the reinforcing partition is composed of lightweight honeycomb blocks welded together.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a snap-fit ​​component on the mounting cylinder, and utilizing the cooperation of the cross snap-fit ​​groove and the mounting rod, a stable connection between the impeller and the drive shaft is achieved, avoiding slippage or deviation during high-speed rotation and ensuring the stability of power transmission; with the help of the flow guiding component, the blades are evenly distributed to connect the wheel seat and the mounting cylinder, and the flow guiding rods and the arc-shaped flow guiding protrusions at the ends of the blades can guide the fluid to flow along a preset trajectory, reducing the generation of eddies and turbulent flow, reducing rotational resistance, and improving power transmission efficiency. At the same time, the flow guiding column on the outside of the wheel seat further optimizes the fluid inlet and outlet direction, reduces the uneven impact of the fluid on the blades, and alleviates blade vibration; by setting a reinforcing component inside the blade, the reinforcing layer composed of lightweight honeycomb blocks significantly improves the structural strength and fatigue resistance of the blade while ensuring the blade's lightweight nature, and enhances the blade's ability to withstand complex forces. The overall structural design takes into account the functions of flow guidance, connection stability, and blade reinforcement, effectively solving the problems of poor impeller flow guidance and easy fatigue damage of blades in the prior art, and significantly improving the operational stability and service life of marine aluminum die-cast impellers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the snap-fit ​​assembly structure of this utility model; Figure 3 This is a schematic diagram of the flow guiding component structure of this utility model; Figure 4 This is a schematic diagram of the reinforcing component structure of this utility model.

[0015] In the figure: 1. Mounting cylinder; 2. Mounting groove; 3. Wheel seat; 4. Snap-fit ​​assembly; 5. Guide assembly; 6. Reinforcing assembly; 401. Cross snap-fit ​​groove; 501. Guide blade; 502. Guide rod; 503. Arc-shaped guide protrusion; 504. Guide column; 601. Reinforcing partition; 602. Lightweight honeycomb block. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this utility model, not all embodiments, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. The technical solutions in the embodiments of this utility model will be clearly and completely described below.

[0017] Example 1: Please refer to Figures 1 to 2 A marine aluminum die-cast impeller with blade reinforcement structure includes a mounting cylinder 1, a mounting groove 2, and a wheel seat 3. The mounting cylinder 1 is fixedly disposed in the middle part of the wheel seat 3, and the mounting groove 2 is disposed inside the mounting cylinder 1. The wheel seat 3 is provided with a snap-fit ​​component 4, a flow guiding component 5, and a reinforcement component 6. The snap-fit ​​component 4 is disposed on the mounting cylinder 1, the flow guiding component 5 is disposed on the wheel seat 3, and the reinforcement component 6 is disposed inside the flow guiding component 5.

[0018] The cross-shaped snap-fit ​​groove 401 in the snap-fit ​​assembly 4 is located inside the mounting groove 2, and the cross-shaped snap-fit ​​groove 401 is mounted on the mounting rod.

[0019] In use, first align the drive shaft with the mounting groove 2 inside the mounting cylinder 1, so that the connecting structure on the drive shaft is precisely aligned with the cross-shaped locking groove 401 in the mounting groove 2. Since the cross-shaped locking groove 401 is mounted on the mounting rod, the mounting rod and the inner wall of the mounting groove 2 form a stable support. Push the drive shaft axially into the mounting groove 2 until the protrusion on the drive shaft is completely engaged in the groove of the cross-shaped locking groove 401. The cross-shaped structure of the cross-shaped locking groove 401 can limit the drive shaft from the circumferential and radial directions, preventing the impeller from slipping circumferentially or shifting axially during high-speed rotation. This provides a reliable power connection foundation for the efficient operation of the impeller and prevents power loss or impeller vibration due to loose connection.

[0020] Example 2: Based on Example 1, please refer to... Figures 2 to 3 One end of the guide vane 501 in the guide assembly 5 is uniformly fixed on the wheel seat 3, and the other end of the guide vane 501 is fixedly installed on the outside of the mounting cylinder 1.

[0021] A guide rod 502 is fixedly installed on the guide vane 501 in the flow guide assembly 5. The guide rod 502 is evenly distributed on the outer surface of the guide vane 501. An arc-shaped guide protrusion 503 is provided at the end of the guide rod 502 in the flow guide assembly 5. The guide column 504 in the flow guide assembly 5 is evenly installed on the outer side of the wheel seat 3.

[0022] In operation, after the impeller starts, the impeller seat 3 drives the guide vanes 501 to rotate around the central axis of the mounting cylinder 1. Fluid enters from the outer side of the impeller seat 3 and first contacts the guide columns 504 evenly installed on the outer side of the impeller seat 3. The guide columns 504 initially divert the fluid, guiding it radially along the impeller seat 3 to the guide vanes 501. As the fluid flows past the guide vanes 501, guide rods 502 evenly arranged on the vanes further guide the fluid. The arc-shaped structure adapts to the fluid's trajectory, reducing frictional resistance between the fluid and the vane surface. The ends of the guide rods 502... The arc-shaped guide protrusion 503 can effectively disperse small eddies in the fluid, allowing the fluid to flow smoothly along the extension direction of the guide rod 502 and avoiding the generation of turbulent flow. At the same time, the structure of the guide blade 501 connecting the wheel seat 3 on one side and the mounting cylinder 1 on the other side forms a triangular stable support, which can maintain the structure without deformation under the action of fluid pressure, ensuring stable guiding effect. Through the synergistic effect of each component of the guide assembly 5, the fluid can efficiently pass through the impeller along the preset trajectory, reducing rotational resistance, improving the impeller's propulsion efficiency, and reducing the uneven impact of the fluid on the blades.

[0023] Example 3: Based on Example 2, please refer to... Figures 3 to 4 The reinforcing partition 601 in the reinforcing component 6 is uniformly disposed inside the guide vane 501, and the reinforcing partition 601 is composed of lightweight honeycomb blocks 602 welded together.

[0024] During use, the guide vane 501 withstands the pressure impact and torque of the fluid during high-speed rotation. The uniformly arranged reinforcing partitions 601 inside play a key reinforcing role. The reinforcing partitions 601 are welded together from lightweight honeycomb blocks 602. The regular hexagonal structure of the honeycomb blocks has excellent mechanical properties, which can evenly distribute the force borne by the blade to each honeycomb unit, avoiding stress concentration in local areas of the blade. The lightweight honeycomb blocks 602 improve strength without significantly increasing the overall weight of the blade, achieving a balance between lightweight and high strength. When the fluid impacts the guide vane 501, the reinforcing partitions 601 can effectively resist the bending and deformation of the blade, ensuring that the blade maintains the preset guiding shape and maintains a stable guiding effect. During long-term operation, the welded structure of the lightweight honeycomb blocks 602 can prevent the reinforcing partitions 601 from loosening or falling off, ensuring the long-term effectiveness of the reinforcing component 6.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A marine aluminum die-cast impeller with blade reinforcement structure, comprising a mounting cylinder (1), a mounting groove (2), and a wheel seat (3), wherein the mounting cylinder (1) is fixedly disposed in the middle part of the wheel seat (3), and the mounting groove (2) is disposed inside the mounting cylinder (1); characterized in that It includes a snap-fit ​​assembly (4), a flow guide assembly (5), and a reinforcing assembly (6). The snap-fit ​​assembly (4) is disposed on the mounting cylinder (1), the flow guide assembly (5) is disposed on the wheel seat (3), and the reinforcing assembly (6) is disposed inside the flow guide assembly (5).

2. The marine aluminum die-cast impeller with a blade strengthening structure according to claim 1, characterized in that: The cross-shaped snap-fit ​​groove (401) in the snap-fit ​​assembly (4) is located inside the mounting groove (2), and the cross-shaped snap-fit ​​groove (401) is mounted on the mounting rod.

3. The marine aluminum die-cast impeller with blade reinforcement structure according to claim 1, characterized in that: The guide vane (501) in the flow guide assembly (5) is uniformly fixed on one side of the wheel seat (3), and the other side of the guide vane (501) is fixed on the outside of the mounting cylinder (1).

4. The marine aluminum die-cast impeller with blade reinforcement structure according to claim 3, characterized in that: A guide rod (502) is fixedly installed on the guide blade (501) in the guide assembly (5), and the guide rod (502) is evenly distributed on the outer surface of the guide blade (501).

5. The marine aluminum die-cast impeller with blade reinforcement structure according to claim 4, characterized in that: The end of the guide rod (502) in the guide assembly (5) is fixedly provided with an arc-shaped guide protrusion (503), and the guide column (504) in the guide assembly (5) is evenly installed on the outer side of the wheel seat (3).

6. The marine aluminum die-cast impeller with a blade strengthening structure according to claim 1, characterized in that: The reinforcing partition (601) in the reinforcing component (6) is uniformly disposed inside the guide vane (501), and the reinforcing partition (601) is composed of lightweight honeycomb blocks (602) welded together.

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