A detachable impeller

Abstract

The utility model provides a detachable impeller, include: impeller front cover, impeller blade, impeller base body and impeller back cover, the impeller blade sets up in the circumferential side of impeller base body. Impeller front cover and impeller back cover are separately at both sides of impeller blade, impeller front cover and impeller back cover are all nested on impeller base body, and the interval arrangement of impeller front cover and impeller back cover forms cavity for arranging impeller blade. The utility model provides through the complicated whole impeller is decomposed for impeller main part, front cover, back cover and so on several simple components, has reduced the casting or stamping difficulty of single component, has reduced production cost and disassembly difficulty while improving the equipment maintenance efficiency of later period.

Description

Technical Field

[0001] This utility model belongs to the field of impeller technology, and in particular relates to a detachable impeller. Background Technology

[0002] Impellers are core components of fluid machinery such as pumps and fans, and their performance directly affects the overall efficiency of the machine. Traditional impellers, especially enclosed impellers, are mostly made by integral casting or welding. This type of enclosed impeller has the following significant disadvantages: integral casting or welding requires high process requirements, is prone to casting defects or welding deformation, affecting the impeller's dynamic balance; and if any part of the impeller (such as the front cover plate, blades, or rear cover plate) is damaged, the entire impeller must be replaced, resulting in significant material waste and economic losses. Furthermore, during use, the impeller's flow channels are prone to adhesion, blockage, or wear. For integral impellers, cleaning and maintenance are extremely inconvenient, and sometimes impossible, leading to performance degradation, which is not the case with enclosed impeller structures. Utility Model Content

[0003] This utility model provides a detachable impeller, which is implemented as follows: A detachable impeller includes: The impeller comprises a front cover plate, impeller blades, an impeller base, and an impeller rear cover plate, wherein the impeller blades are disposed on the periphery of the impeller base. The front cover plate and the rear cover plate are respectively disposed on both sides of the impeller blades. Both the impeller front cover plate and the impeller rear cover plate are nested on the impeller base, and the impeller front cover plate and the impeller rear cover plate are spaced apart to form a cavity for arranging the impeller blades.

[0004] Preferably, the impeller front cover plate includes an inner support ring and an outer extension plate. The inner edge of the inner support ring is provided with three sets of limiting blocks, and the outer shell of the impeller base is provided with a positioning groove that matches the limiting blocks.

[0005] Preferably, the inner support ring is nested with the impeller base, and a rear cover plate is provided between the inner support ring and the impeller base for fixing. The rear cover plate is fixedly assembled into the impeller base through the inner support ring.

[0006] Preferably, the rear cover plate is fixed in four groups and is arranged in an array on the front cover plate of the impeller.

[0007] Preferably, the rear cover plate is fixed by fastening bolts, and the screwing direction of the fastening bolts is perpendicular to the rotation axis of the impeller blades.

[0008] Preferably, the impeller rear cover plate has the same structure as the impeller front cover plate, and the impeller rear cover plate is fixed to the impeller base by a front cover plate.

[0009] Preferably, the impeller base has a hollow interior forming an assembly shaft cavity, which is used to house the main shaft that drives the detachable impeller to rotate.

[0010] Compared with the prior art, the embodiments of this application have the following main advantages: The detachable impeller provided by this utility model decomposes the complex integral impeller into several simple components such as the impeller body, front cover plate, and rear cover plate, reducing the casting or stamping difficulty of individual components, improving the yield rate, reducing the scrap rate caused by welding or integral casting defects, and adopting a convenient disassembly structure. After the rear cover plate and front cover plate are removed, the debris remaining in the impeller body and impeller blades can be quickly processed. The impeller's transmission performance is maintained by effectively cleaning the impeller. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of a detachable impeller provided by this utility model.

[0012] Figure 2 This is a schematic diagram of the internal structure of a detachable impeller provided by this utility model.

[0013] Figure 3 This is a schematic diagram of the impeller front cover plate and impeller rear cover plate structure of a detachable impeller provided by this utility model.

[0014] Figure 4 This is a schematic diagram of the structure of the impeller base in a detachable impeller provided by this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Impeller front cover plate; 11. Limiting block; 12. Positioning groove; 2. Impeller blades; 3. Impeller rear cover plate; 4. Rear cover plate fixing; 5. Impeller base; 6. Main shaft; 7. Front cover plate fixing; 8. Impeller nut. Detailed Implementation

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0017] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0018] This utility model embodiment provides a detachable impeller, such as Figures 1-4 As shown, the detachable impeller includes: The impeller comprises a front cover plate 1, impeller blades 2, an impeller base 5, and an impeller rear cover plate 3, wherein the impeller blades 2 are disposed around the periphery of the impeller base 5. The front cover plate 1 and the rear cover plate 3 are respectively disposed on both sides of the impeller blades 2. The impeller front cover plate 1 includes an inner support ring and an outer extension plate. The inner support ring is hollow and nested on the impeller base 5. The outer extension plate is disposed on one side of the inner support ring and shields the impeller blades 2. The impeller rear cover plate 3 adopts the same structural design as the impeller front cover plate 1. Similarly, the impeller rear cover plate 3 is disposed on the side of the impeller blades 2 away from the impeller front cover plate 1. The impeller blades 2 are arranged at intervals between the impeller front cover plate 1 and the impeller rear cover plate 3 to form cavities. The impeller base 5 also has a hollow structure design at its center. The hollow interior of the impeller base 5 forms an assembly shaft cavity for assembling the main shaft 6. Here, the main shaft 6 is not part of the main impeller structure. The shaft of the device that drives the impeller to rotate is the main shaft 6. The main shaft 6 is inserted into the impeller base 5 from the side where the impeller rear cover plate 3 is set. In this embodiment, a front cover plate fixing 7 is provided between the inner support ring and the impeller base 5, and a rear cover plate fixing 4 is provided between the impeller rear cover plate 3 and the impeller base 5 for fixing. Here, both the front cover plate fixing 7 and the rear cover plate fixing 4 are fastening bolts. Taking the front cover plate fixing 7 as an example, the screwing direction of the front cover plate fixing 7 is perpendicular to the rotation axis of the impeller blade 2. When disassembling, after removing the front cover plate fixing 7 and the rear cover plate fixing 4, the debris remaining in the impeller base 5 and the impeller blade 2 can be processed, and the complex integral impeller can be decomposed into several simple components such as the impeller body, the front cover plate, and the rear cover plate. This reduces the casting or stamping difficulty of individual components, improves the yield, and reduces the scrap rate caused by welding or integral casting defects.

[0019] In a preferred embodiment of this invention, the front end of the main shaft 6 is further provided with an impeller nut 8, and the assembly shaft cavity of the impeller base 5 is provided with a bearing seat for assembling the main shaft 6. After the front end of the main shaft 6 is inserted into the bearing seat, the impeller nut 8 is assembled on the front end of the main shaft 6. Here, the center of the bearing seat adopts an irregularly shaped hole groove that matches the structure of the main shaft 6. The bearing seat is connected to the inner wall of the impeller base 5 through several sets of connecting rods. As a preferred embodiment of this application, the impeller front cover plate 1 and the impeller rear cover plate 3 are connected to the impeller base 5 in the same nested manner. Here, the structure of the impeller front cover plate 1 and the impeller base 5 is taken as an example. The inner wall of the inner support ring constituting the impeller front cover plate 1 is provided with three sets of limiting blocks 11 arranged in an array, and the outer wall of the impeller base 5 is also provided with three sets of positioning grooves 12 arranged in an array. The limiting blocks 11 and the positioning grooves 12 are adapted to each other. The limiting blocks 11 and the positioning grooves 12 help to enhance the structural stability of the impeller front cover plate 1 and the impeller base 5. During the impeller rotation, the limiting blocks 11 and the positioning grooves 12 are used to enhance the overall structural strength and avoid relying solely on the front cover plate fixing 7 to achieve locking. The inner support ring is provided with a through screw hole for the front cover plate fixing 7 to pass through, while the impeller base 5 is provided with a screw hole for assembling the front cover plate fixing 7. The screw holes on the impeller base 5 are blind holes. It should be noted that there are four sets of through screw holes on the inner support ring, which are also arranged in an array. In actual application, one set of through screw holes passes through the limiting block 11 and corresponds to the position of the screw hole on the outer wall of the impeller base 5. The remaining through screw holes are staggered with the other limiting blocks 11. The staggered design of the limiting blocks 11 and the positioning groove 12 here enhances the overall structural stability. The connection structure used for the impeller rear cover plate 3 and the impeller base 5 is the same as that used for the impeller front cover plate 1 and the impeller base 5.

[0020] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0021] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A detachable impeller, characterized in that, include: Impeller front cover plate (1), impeller blades (2), impeller base (5), and impeller rear cover plate (3), The impeller blades (2) are arranged on the periphery of the impeller base (5), and the impeller front cover plate (1) and the impeller rear cover plate (3) are respectively arranged on both sides of the impeller blades (2); the impeller front cover plate (1) includes an inner support ring and an outer extension plate, the inner edge of the inner support ring is provided with three sets of limiting blocks (11), and the outer shell of the impeller base (5) is provided with a positioning groove (12) that matches the limiting blocks (11); The inner support ring is nested and connected to the impeller base (5). A front cover plate fixing (7) is provided between the inner support ring and the impeller base (5). The impeller rear cover plate (3) has the same structure as the impeller front cover plate (1). A rear cover plate fixing (4) is provided between the impeller rear cover plate (3) and the impeller base (5) for fixing. The front cover plate fixing (7) passes through the inner support ring and is assembled on the impeller base (5). The front cover plate fixing (7) is a fastening bolt. The screwing direction of the fastening bolt is perpendicular to the rotation axis of the impeller blade (2). The impeller base (5) has a hollow interior forming an assembly shaft cavity, which is used to arrange the main shaft (6) that drives the detachable impeller to rotate. The impeller front cover plate (1) and the impeller rear cover plate (3) are both nested on the impeller base (5), and the impeller front cover plate (1) and the impeller rear cover plate (3) are spaced apart to form a cavity for arranging the impeller blades (2).

2. A detachable impeller as described in claim 1, characterized in that, The number of fixed front cover plates (7) is four, and they are arranged in an array on the front cover plate (1) of the impeller.

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