Novel pump body rotor plate

Abstract

The utility model relates to the technical field of pump body rotors, in particular to a novel pump body rotor piece which comprises a rotor piece body, a central mounting hole is formed in the middle of the rotor piece body, a plurality of rotor holes are formed in the rotor piece body, and the rotor holes are arranged around the central mounting hole in an annular array mode. The outer edge of the rotor sheet body is provided with notches corresponding to the rotor holes, and the notches are communicated with the rotor holes. The electromagnetic performance of each working condition point when the pump body motor works is improved, so that the effect of improving the performance of the pump body is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of pump body rotors, and in particular to a novel pump body rotor blade. Background Technology

[0002] The rotor blades are the rotating parts inside the pump body motor. They are usually made of stacked silicon steel sheets. There are short-circuit rings at both ends of the rotor. It is the mechanism for the power output of the motor and together with the stator, it forms the core part of the motor. However, most of the motor rotors of canned pumps on the market have low performance and cannot meet the needs of various working conditions. How to improve the performance of the pump body by designing a new type of pump body rotor blade is a technical problem that enterprise technicians urgently need to solve. Utility Model Content

[0003] To address the shortcomings of the prior art, this application provides a novel pump rotor blade.

[0004] The above-mentioned inventive objective of this application is achieved through the following technical solutions:

[0005] A novel pump rotor blade includes a rotor blade body with a central mounting hole in the middle. The rotor blade body has a plurality of rotor holes arranged in a ring array around the central mounting hole. The outer edge of the rotor blade body has a cut corresponding to each rotor hole, and the cut communicates with the rotor hole.

[0006] By adopting the above technical solution, the central mounting hole in the rotor body is located in the middle of the rotor body, which facilitates the installation and fixation of the rotor and ensures the correct position of the rotor in the pump motor. The rotor holes set on the rotor body are arranged in a ring array around the central mounting hole through optimized design to optimize the magnetic flux path, reduce magnetic resistance, and enhance the stability and balance of magnetic exchange of the rotor when the motor is energized. Furthermore, by setting several cuts that communicate with the rotor holes to form additional channels for magnetic flux lines, the magnetic flux path can be further optimized, the electromagnetic performance of the pump motor can be improved, and the setting of the cuts makes it easier for steam to be discharged during the rotor die casting process, improving the die casting quality of the rotor aluminum, thereby enhancing the magnetic flux of the alternating magnetic field of the rotor during operation, and thus achieving the maximum efficiency conversion.

[0007] In a preferred embodiment, this application may be further configured such that the number of rotor holes is greater than or equal to 18.

[0008] By adopting the above technical solution and using the rotor holes within this range, the stability and balance of magnetic exchange of the rotor during motor operation can be increased.

[0009] In a preferred embodiment, the rotor hole can be further configured to be an elongated strip formed by the closure of an arc and a tangent.

[0010] By adopting the above technical solution, the rotor hole of this shape is easy to adapt to the layout of the annular array distribution, and at the same time, it is conducive to the reasonable distribution of the ratio between the size of the circular rotor blade body and the size of the rotor hole. It is also easy to match the layout of the short-circuit ring at the rotor end, effectively reducing the rotor resistance, thereby improving the efficiency of the motor and pump body.

[0011] In a preferred embodiment, this application may be further configured such that a positioning groove is provided inside the central mounting hole, and the positioning groove is toothed.

[0012] By adopting the above technical solution, each rotor hole in each layer can be aligned in the same direction when the rotor laminations are stacked, thereby improving the quality and efficiency of rotor lamination stacking and compaction.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] 1. In the rotor body, the central mounting hole is located in the middle of the rotor body, which facilitates the installation and fixation of the rotor and ensures the correct position of the rotor in the pump motor. Several rotor holes on the rotor body are arranged in a ring array around the central mounting hole through optimized design to optimize the magnetic flux path, reduce magnetic resistance, and enhance the stability and balance of magnetic exchange of the rotor when the motor is energized. In addition, by setting several cuts that communicate with the rotor holes, additional channels for magnetic flux lines are formed, which can further optimize the magnetic flux path and improve the electromagnetic performance of the pump motor. Furthermore, the setting of the cuts makes it easier for steam to be discharged from the rotor during the die casting process, thereby improving the die casting quality of the rotor.

[0015] 2. By adopting a slender strip-shaped rotor hole formed by the closure of arcs and tangents, it can adapt to the layout of the rotor hole annular array distribution. At the same time, it is conducive to the reasonable distribution of the ratio between the size of the circular rotor blade body and the size of the rotor hole, and it is easy to match the layout of the short-circuit ring at the rotor end, effectively reducing resistance. It is specifically designed for the rotor structure in canned water pumps to improve the efficiency of the motor and pump body.

[0016] 3. By opening a toothed arc-shaped positioning groove on the inside of the central mounting hole, each rotor hole in each layer can be aligned in the same direction when the rotor laminations are stacked, thereby improving the stacking and compaction quality and assembly efficiency of the rotor laminations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the novel pump body rotor blades in one embodiment of this application;

[0018] Reference numerals: 1. Rotor body; 2. Center mounting hole; 3. Rotor hole; 31. Arc; 32. Tangent; 4. Cut; 5. Positioning groove. Detailed Implementation

[0019] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of this application, including various details to aid understanding. These should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0020] It should be noted that the terms "first," "second," etc., used in this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with this disclosure.

[0021] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article, unless otherwise specified, generally indicates that the preceding and following related objects have an "or" relationship.

[0022] A novel pump rotor blade of this application is described below with reference to the accompanying drawings.

[0023] like Figure 1As shown, the novel pump body rotor includes a rotor body 1. A central mounting hole 2 is provided in the center of the rotor body 1. The rotor body 1 has a plurality of rotor holes 3 arranged in a ring array around the central mounting hole 2. A notch 4 is provided on the outer edge of the rotor body 1 corresponding to each rotor hole 3, and the notch 4 connects to the rotor hole 3. The central mounting hole 2 is located in the center of the rotor body 1, facilitating the installation and fixation of the rotor and ensuring the correct position of the rotor in the pump motor. The plurality of rotor holes 3 on the rotor body 1... By optimizing the design and arranging the rotor in a ring array around the central mounting hole 2, the magnetic flux path is optimized, magnetic resistance is reduced, and the stability and balance of magnetic exchange of the rotor when the motor is energized are enhanced. Furthermore, by setting several cuts 4 that communicate with the rotor hole 3 to form additional channels for the magnetic flux lines, the magnetic flux path can be further optimized, the electromagnetic performance of the pump motor can be improved, and the setting of cuts 4 makes it easier for steam to be discharged from the rotor during the die casting process, improving the die casting quality of the rotor aluminum, thereby enhancing the magnetic flux of the alternating magnetic field of the rotor during operation, and thus achieving the maximum efficiency conversion.

[0024] Preferably, the number of rotor holes 3 is greater than or equal to 18. By using this number of rotor holes 3, the stability and balance of magnetic exchange of the rotor during motor operation are increased.

[0025] Furthermore, the rotor hole 3 is shaped as a long strip formed by the closed arc 31 and tangent 32. This shape of the rotor hole 3 is easy to adapt to the layout of the annular array distribution, and at the same time, it is conducive to the reasonable distribution of the ratio between the size of the circular rotor body 1 and the size of the rotor hole 3. It is also easy to match the layout of the short-circuit ring at the rotor end, effectively reducing resistance. It is specifically designed for the rotor structure in the shielded water pump, thereby improving the efficiency of the motor and the pump body. Moreover, this shape can provide a greater number of rotor holes 3 while ensuring mechanical strength.

[0026] In addition, a positioning groove 5 is provided inside the center mounting hole 2. The positioning groove 5 is toothed arc-shaped so that each rotor hole 3 of each layer can be aligned when the rotor laminations are stacked, thereby improving the stacking and compaction quality and assembly efficiency of the rotor laminations. Specifically, the positioning groove 5 in the center mounting hole 2 can also increase the tension of the center mounting hole 2, so that the rotor laminations can be easily inserted into the shaft after heating and cooling and tightening, and can avoid the occurrence of reverse lamination, that is, avoid the eddy current effect caused by the gaps between the rotor laminations due to burrs during the operation of the motor, thereby reducing the noise generated by the motor and lowering the temperature of the motor.

[0027] It should be noted that, after the rotor is installed, the new type of pump body rotor blade of this application, under the same head conditions and different operating points, has a higher flow rate than the rotor installed after the traditional rotor blade is installed. Specifically, the flow rate is increased by 14.6% to 90%, and the maximum head is increased by 14%.

[0028] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A novel pump rotor blade, characterized in that, include: The rotor body (1) has a central mounting hole (2) in the middle and a plurality of rotor holes (3) arranged in a ring array around the central mounting hole (2). The outer edge of the rotor body (1) has a cut (4) corresponding to each rotor hole (3) and the cut (4) is connected to the rotor hole (3).

2. The novel pump rotor blade as described in claim 1, characterized in that, The number of rotor holes (3) is greater than or equal to 18.

3. The novel pump rotor blade as described in claim 1, characterized in that, The rotor hole (3) is a long strip formed by the closure of an arc (31) and a tangent (32).

4. The novel pump rotor blade as described in claim 1, characterized in that, The center mounting hole (2) has a positioning groove (5) inside, and the positioning groove (5) is toothed.

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