Rotor convenient for dynamic balance

By using a metal plate and housing to seal the rotor and drilling holes in the metal plate to adjust the dynamic balance, the vibration problem caused by uneven rotor mass distribution is solved, and simple dynamic balance adjustment and service life extension of the rotor are achieved.

CN224228934UActive Publication Date: 2026-05-12TAIZHOU YIJU MECHANICAL & ELECTRIC PROD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAIZHOU YIJU MECHANICAL & ELECTRIC PROD
Filing Date
2025-03-13
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The existing rotors have uneven mass distribution due to uneven material, processing errors, assembly deviations or running wear, which generates centrifugal force, causes vibration and accelerates bearing wear. In addition, the existing sealing materials have low density and are difficult to adjust dynamically by cutting.

Method used

A metal plate and housing are used in place of a polymer coating for sealing, and holes are drilled in the metal plate to adjust the dynamic balance of the rotor. The metal plate is made of stainless steel to improve sealing and durability.

Benefits of technology

This makes rotor dynamic balance adjustment simpler, reduces manufacturing difficulty, and improves service life and sealing performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a rotor convenient for dynamic balance, and belongs to the technical field of water pump manufacturing. The problem that dynamic balance of the water pump rotor is inconvenient is solved. The rotor facilitating dynamic balance comprises a rotor body, the rotor body comprises a shell, a rotor assembly and two metal plates, the two metal plates are arranged at the two ends of the shell, and the metal plates and the shell are used for sealing the rotor assembly. The utility model has the advantage that the dynamic balance of the rotor can be conveniently adjusted.
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Description

Technical Field

[0001] This utility model belongs to the field of water pump manufacturing technology, and specifically relates to a rotor that is easy to dynamically balance. Background Technology

[0002] Uneven mass distribution in rotors due to factors such as uneven material composition, processing errors, assembly deviations, or operational wear generates centrifugal force during rotation. This imbalance can cause vibration, accelerate bearing wear, and even lead to equipment failure. Existing rotors are often corrected by removing or balancing weights at the high-end. For sealing purposes, existing rotors often use polymer coatings such as silicone rubber, fluororubber, and polytetrafluoroethylene at both ends. These materials have low density, making dynamic balancing difficult by cutting these polymer coatings. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the prior art by providing a rotor that facilitates dynamic balancing.

[0004] The purpose of this utility model can be achieved through the following technical solution: a rotor that is easy to dynamically balance, including a rotor body, the rotor body including a housing, a rotor assembly and two metal plates, the two metal plates being disposed at both ends of the housing, and the metal plates and the housing being used to seal the rotor assembly.

[0005] The working principle of this utility model is as follows: This application uses a metal plate and a shell to replace the polymer protrusion layer to seal the rotor assembly, preventing the intrusion of external impurities and increasing the service life. At the same time, dynamic balancing of the rotor is achieved by drilling holes in the metal plate, which makes dynamic balancing adjustment simpler and reduces the difficulty of manufacturing the rotor.

[0006] In the aforementioned rotor designed for easy dynamic balancing, the metal plate is circular, and the sidewalls of the metal plate are welded to the shell.

[0007] In the aforementioned rotor designed for easy dynamic balancing, the metal plate is provided with through holes for the rotor assembly to pass through, and the through-hole rotor assembly is welded.

[0008] In the aforementioned rotor designed for easy dynamic balancing, the metal plates are made of stainless steel.

[0009] In the aforementioned rotor that facilitates dynamic balancing, a clearance slot is provided on the side wall of the metal plate for the housing to be inserted.

[0010] In the aforementioned rotor designed for easy dynamic balancing, a chamfer is provided on one side of the slot.

[0011] Compared with the prior art, this utility model has the advantage of facilitating dynamic balancing of the rotor. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0014] Figure 3 This is an enlarged structural diagram of part A of this utility model.

[0015] Figure 4 This is a schematic diagram of the dynamic balancing of this utility model.

[0016] In the diagram, 1 is the housing; 2 is the rotor assembly; 3 is the metal plate; 4 is the through hole; 5 is the clearance slot; and 6 is the chamfer. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] like Figures 1-4 As shown, this rotor, which is easy to dynamically balance, includes a rotor body, which includes a housing 1, a rotor assembly 2, and two metal plates 3. The two metal plates 3 are disposed at both ends of the housing 1, and the metal plates 3 and the housing 1 are used to seal the rotor assembly 2.

[0019] To elaborate further, the metal plate 3 is circular, and its sidewall is welded to the housing 1. The metal plate 3 is provided with a through hole 4 for the rotor assembly 2 to pass through. The through hole 4 is welded to the rotor assembly 2. The metal plate 3 is sealed to the housing 1 and the rotor assembly 2 by welding, which has good sealing performance and can meet the requirements of air tightness and water tightness.

[0020] To elaborate further, metal plate 3 is made of stainless steel, which has many advantages such as strong corrosion resistance, high strength, high temperature resistance, low temperature resistance, and easy drilling.

[0021] To elaborate further, the side wall of the metal plate 3 is provided with a clearance slot 5 for the housing 1 to be inserted. This arrangement facilitates the alignment of the metal plate 3 and the housing 1, while also increasing the sealing performance.

[0022] To elaborate further, a chamfer of 6 is provided on one side of the slot. This feature facilitates assembly and helps release internal stresses in the material.

[0023] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0024] Although this document uses a large number of technical terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A rotor that is easy to dynamically balance, characterized in that, The rotor body includes a housing (1), a rotor assembly (2), and two metal plates (3). The two metal plates (3) are disposed at both ends of the housing (1), and the metal plates (3) and the housing (1) are used to seal the rotor assembly (2).

2. The rotor for easy dynamic balancing according to claim 1, characterized in that, The metal plate (3) is circular, and the sidewall of the metal plate (3) is welded to the shell (1).

3. A rotor that facilitates dynamic balancing according to claim 2, characterized in that, The metal plate (3) is provided with through holes (4) for the rotor assembly (2) to pass through, and the rotor assembly (2) is welded through the through holes (4).

4. A rotor that facilitates dynamic balancing according to claim 3, characterized in that, The metal plate (3) is made of stainless steel.

5. A rotor that facilitates dynamic balancing according to claim 1, characterized in that, The metal plate (3) has a clearance slot (5) on its side wall for inserting the housing (1).

6. A rotor that facilitates dynamic balancing according to claim 5, characterized in that, The clearance slot (5) has a chamfer (6) on one side.