Impeller with cutting edge blades

Abstract

The impeller comprises a hub, cutting blades are fixedly arranged on the hub, a cutting structure is arranged on one side, in the rotating direction, of each cutting blade, and each cutting structure comprises a cutting edge arranged on one side of the corresponding cutting blade. The impeller with the cutting knife edge blades can effectively cope with the complex working environment containing long-strip-shaped or rope type garbage. The cutting structures arranged on the cutting blades can actively cut long-strip-shaped objects in the rotating process of the impeller, the long-strip-shaped objects are prevented from being wound around the impeller shaft or other parts, and therefore the problems of running resistance rising and equipment shutdown are avoided. According to the design, the reliability and the working efficiency of the impeller during treatment of liquid containing impurities are remarkably improved, and meanwhile the overall performance and the stability of fluid conveying equipment are optimized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of impeller structure, and particularly relates to an impeller with cutting blade edges. BACKGROUND

[0002] As a key component, impellers are widely used in various fluid conveying devices, especially in emergency drainage fields. The performance of the impeller directly affects the working efficiency and reliability of the water pump. The traditional impeller design has made remarkable achievements in improving pumping efficiency, optimizing fluid mechanics characteristics, and prolonging service life after years of development. However, with the increasing complexity of the use environment, especially when dealing with impurity-containing liquids, the design of the traditional impeller gradually exposes new challenges.

[0003] In the case of long strip or rope-like garbage, the commonly used methods mainly include regular cleaning and maintenance, adding filter screens or using special-shaped blade design to reduce the risk of blockage. Common measures include: regular disassembly, inspection and removal of entanglements by manual methods; installing fine filter screens at the water inlet to block large impurities; using smooth surface treatment to reduce the probability of foreign matter attachment; and adjusting the blade curvature to try to make solid substances more easily slide through without staying.

[0004] The above-mentioned prior art methods generally cannot effectively cut off long strip-shaped objects, which may still be entangled around the impeller shaft or other parts, thereby causing an increase in running resistance, and in severe cases, the device may stop working, affecting the overall system stability and working efficiency. Therefore, there is an urgent need for a new design scheme that can actively respond to this situation. CONTENT OF THE UTILITY MODEL

[0005] In order to solve the problems of the impeller in the background art, the present application provides an impeller with cutting blade edges.

[0006] The impeller with cutting blade edges provided by the present application adopts the following technical scheme:

[0007] The impeller with cutting blade edges comprises a hub, a cutting blade is fixedly arranged on the hub, a cutting structure is arranged on one side of the cutting blade in the rotation direction, and the cutting structure comprises a cutting edge arranged on one side of the cutting blade.

[0008] By adopting the above technical scheme, the impeller with cutting blade edges can effectively respond to the complex working environment containing long strip or rope-like garbage. The cutting structure arranged on the cutting blade can actively cut long strip-shaped objects during the rotation of the impeller, preventing them from being entangled around the impeller shaft or other parts, thereby avoiding the problems of increasing running resistance and device shutdown. This design significantly improves the reliability and working efficiency of the impeller when dealing with impurity-containing liquids, and optimizes the overall performance and stability of the fluid conveying device.

[0009] Preferably, a plurality of cutting edges are arranged on one side of the cutting blade.

[0010] By adopting the above technical scheme, the plurality of cutting edges arranged on one side of the cutting blade of the impeller can effectively increase the cutting frequency and range of long strip-shaped or rope-like garbage. Compared with a single cutting edge, the design of multiple cutting edges can contact and cut the winding object multiple times during the rotation of the impeller, significantly reducing the risk of long strip-shaped objects winding around the impeller shaft or other parts, thereby reducing the running resistance and improving the working efficiency and system stability of the equipment.

[0011] Preferably, any of the cutting edges is recessed towards the middle of the cutting blade.

[0012] By adopting the above technical scheme, the design of the cutting edge recessed towards the middle of the cutting blade of the impeller can effectively enhance the cutting ability of long strip-shaped or rope-like garbage. This design enables the cutting edge to form more stable shearing force during the rotation of the impeller, thereby improving the cutting efficiency of the winding object, reducing the probability of foreign matter winding on the impeller, reducing the running resistance, and improving the stability and reliability of the equipment.

[0013] Preferably, the cutting structure further comprises a cutting groove arranged on the surface of the cutting blade, the cutting groove extending from the cutting edge along the tangential direction of the hub, and the depth and width of the cutting groove gradually decrease.

[0014] By adopting the above technical scheme, long strip-shaped or rope-like garbage can be effectively guided into the cutting edge, and the shearing force can be gradually increased during the cutting process, thereby improving the cutting effect of long strip-shaped objects, reducing the possibility of garbage winding on the impeller, reducing the running resistance, ensuring stable operation of the equipment, and improving the working efficiency. In addition, the design of the cutting groove can also optimize the fluid flow path and reduce energy consumption.

[0015] Preferably, the length of the plurality of cutting grooves gradually increases in the direction away from the hub.

[0016] By adopting the above technical scheme, the length of the plurality of cutting grooves gradually increases in the direction away from the hub, which makes the distribution of the cutting grooves on the blade more reasonable, effectively increases the cutting path length of the garbage, thereby improving the cutting efficiency, reducing the risk of garbage winding on the impeller, and the variation characteristics of the length of the cutting groove help to gradually tear and disperse the garbage during the rotation of the impeller, reduce the running resistance, and ensure the stability and working efficiency of the impeller under complex working conditions.

[0017] Preferably, a weight-reducing groove is arranged on the hub.

[0018] By adopting the technical scheme, the weight-reducing groove arranged on the wheel hub can effectively reduce the overall weight of the impeller, thereby reducing the driving energy consumption required when the impeller rotates and improving the operation efficiency of the equipment.

[0019] Preferably, the cutting blade is arranged in multiple.

[0020] By adopting the technical scheme, the cutting blade of the impeller is arranged in multiple, which can effectively increase the cutting frequency and coverage range of the long strip or rope-like garbage in the fluid.

[0021] Preferably, the wheel hub and the cutting blade are integrally formed.

[0022] By adopting the technical scheme, the wheel hub and the cutting blade are integrally formed, which can effectively improve the overall strength and reliability of the impeller and avoid the loosening or fracture problem caused by the connection part in the traditional split structure.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. The cutting edge arranged on the cutting blade can effectively cut the long strip or rope-like garbage, avoid its winding on the impeller shaft or other parts, thereby significantly reducing the running resistance and improving the stability and working efficiency of the equipment operation;

[0025] 2. The cutting edge is arranged on one side of the cutting blade and recessed towards the middle, which optimizes the cutting path, enhances the shearing capacity of foreign matters and further reduces the risk of blockage;

[0026] 3. The integrally formed design of the wheel hub and the cutting blade improves the structural strength and simplifies the manufacturing process, which provides a guarantee for long-term reliable operation BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure in the embodiment of the present application;

[0028] Figure 2 is a schematic diagram of the weight-reducing groove in the embodiment of the present application.

[0029] Reference signs: 1, wheel hub; 2, cutting blade; 3, cutting structure; 31, cutting edge; 32, cutting groove; 4, weight-reducing groove. DETAILED DESCRIPTION

[0030] The following will be described in detail in combination with the accompanying Figure 1 - the accompanying Figure 2 The present application will be further described in detail.

[0031] The embodiment of the present application discloses an impeller with a cutting edge blade.

[0032] Refer toFigure 1 A impeller with cutting blade edge, comprising a hub 1 and a cutting blade 2 fixedly arranged on the hub 1, wherein the cutting blade 2 is provided with a cutting structure 3 on one side in the rotation direction, the cutting structure 3 comprises a cutting edge 31 arranged on one side of the cutting blade 2, which effectively cuts off the long strip-shaped object, reduces the resistance of the impeller operation, and improves the stability and working efficiency of the equipment.

[0033] Referring to Figure 1 The cutting edge 31 has a sharp edge and can effectively cut the long strip-shaped object; a plurality of cutting edges 31 are arranged on one side of the cutting blade 2, in the embodiment of the application, the cutting blade 2 is provided with four cutting edges 31, and any one of the cutting edges 31 is provided with five cutting edges 31; the lengths of the plurality of cutting edges 31 are different, and the lengths of the plurality of cutting edges 31 gradually increase in the direction away from the hub 1; any one of the cutting edges 31 is recessed towards the middle part of the cutting blade 2, the middle part of the cutting edge 31 has a larger contact area during cutting, and the cutting edge 31 forms a more stable shearing force during rotation, thereby improving the cutting efficiency of the winding object.

[0034] Referring to Figure 1 The cutting structure 3 further comprises a cutting groove 32 arranged on the surface of the cutting impeller corresponding to the cutting edge 31; the cutting groove 32 extends along the surface of the cutting blade 2 from the cutting edge 31, and the extension direction is the tangential direction of the hub 1; the depth and width of the cutting groove 32 gradually decrease in the extension direction from the cutting edge 31, which helps to guide the long strip-shaped object into the cutting area and gradually cut it off; a continuous cutting path is formed between the cutting edge 31 and the cutting groove 32; the cutting edge 31 and the cutting groove 32 act together to complete the cutting action through the sharp edge of the cutting edge 31, and the design of the cutting groove 32 ensures smooth transition during cutting, effectively reduces vibration and noise during cutting, and improves cutting efficiency and stability.

[0035] Referring to Figure 1 The lengths of the plurality of cutting grooves 32 are different, and the lengths of the plurality of cutting grooves 32 gradually increase in the direction away from the hub 1; the lengths of the cutting edge 31 and the cutting groove 32 gradually increase in the direction away from the hub 1; since the rotation of the impeller generates centrifugal force, the winding object moves outward, and the increase in the length of the cutting edge 31 and the cutting groove 32 on the outside of the impeller facilitates the cutting of the winding object, effectively increases the cutting path length of the garbage, and thus improves the cutting efficiency.

[0036] Referring to Figure 1 The hub 1 is further provided with a weight-reducing groove 4; the combination of the hub 1 and the weight-reducing groove 4 reduces the weight, thereby reducing the centrifugal force of the impeller during high-speed rotation, reducing the wear of the hub 1, and prolonging the service life of the equipment. At the same time, the lightweight design also improves the start and stop response speed of the impeller, and improves the working efficiency of the equipment.

[0037] Referring to Figure 1 The cutting blades 2 are obliquely arranged, and the oblique angles of the cutting blades 2 are the same. In the embodiment, the angle between the cutting blades 2 and the rotating shaft of the impeller is 45°. The hub 1 and the cutting blades 2 are integrally formed, which can effectively improve the overall strength and reliability of the impeller and avoid the problems of looseness or fracture caused by the connection part in the traditional split structure.

[0038] The implementation principle of the embodiment is that the cutting blades 2 are provided with cutting edges 31 and cutting grooves 32. More cutting edges 31 are arranged on the cutting blades 2. Each cutting edge 31 is recessed towards the middle part of the cutting blade 2 to form multiple cutting points, thereby achieving multi-point cutting of the long strip-shaped object. In order to further improve the cutting efficiency, the lengths of the cutting edges 31 and the cutting grooves 32 gradually increase in the direction away from the hub 1, which helps to guide the long strip-shaped object to gradually enter the cutting area, further improves the cutting efficiency and stability, and completes the cutting action. At the same time, the design of the cutting grooves 32 ensures the smooth transition of the cutting process. This design not only effectively solves the problem of winding of the long strip-shaped object, but also significantly reduces the running resistance of the impeller, improves the stability and working efficiency of the equipment. The combined design of the hub 1 and the weight reduction groove 4 further optimizes the overall performance of the impeller, which performs well under complex working conditions.

[0039] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An impeller with a cutting knife blade, characterized by: The application relates to a hub (1) provided with cutting blades (2) fixedly arranged on the hub (1), wherein one side of the cutting blades (2) in a rotating direction is provided with a cutting structure (3), and the cutting structure (3) comprises cutting edges (31) arranged on one side of the cutting blades (2).

2. An impeller with a cutting knife blade according to claim 1, characterized in that: The cutting edges (31) are arranged on one side of the cutting blades (2) in a plurality of ways.

3. An impeller with a cutting knife blade according to claim 2, characterized in that: Any one of the cutting edges (31) is recessed to the middle of the cutting blades (2).

4. An impeller with a cutting knife blade according to claim 3, characterized in that: The cutting structure (3) further comprises cutting grooves (32) arranged on the surface of the cutting blades (2), wherein the cutting grooves (32) extend along the tangential direction of the hub (1) from the cutting edges (31), and the depth and width of the cutting grooves (32) gradually decrease.

5. An impeller with a cutting knife blade according to claim 4, characterized in that: The length of the plurality of cutting grooves (32) gradually increases in the direction away from the hub (1).

6. An impeller with a cutting knife blade according to claim 1, characterized in that: The hub (1) is provided with a weight-reducing groove (4).

7. An impeller with a cutting knife blade according to claim 1, characterized in that: The cutting blades (2) are arranged in a plurality of ways.

8. An impeller with a cutting knife blade according to claim 1, characterized in that: The hub (1) and the cutting blades (2) are integrally formed.

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