Wear-resistant water pump rotor structure
The multi-layer interlocking structure design solves the problem of water pump rotor loosening during long-term operation, achieving a stable connection of components and reducing wear, thus extending the equipment's lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN XINJIANLONG HARDWARE CO LTD
- Filing Date
- 2025-04-16
- Publication Date
- 2026-05-12
AI Technical Summary
The existing water pump rotor is not easily interlocked during assembly, which leads to loosening during long-term operation, affecting stability, aggravating wear, and increasing maintenance requirements.
It adopts a multi-layer interlocking structure design. By using the assembly pressure ring and the top cover together, the limiting groove and fasteners are used to achieve a stable connection between the components, ensuring accurate docking between the components and reducing wear.
It effectively prevents components from loosening, improves connection stability, reduces maintenance costs and time, and extends equipment lifespan.
Smart Images

Figure CN224233418U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water pump rotor technology, specifically a wear-resistant water pump rotor structure. Background Technology
[0002] A water pump rotor is a pump component that rotates along with the shaft. It converts electrical energy into rotational torque through electric drive or traditional mechanical means, driving the impeller to rotate, causing the liquid to generate centrifugal force and be drawn into and discharged from the pump body. Existing water pump rotors cannot properly interlock between structural components during assembly, leading to loosening during long-term operation. Loose components affect the stability of the water pump, which can cause misalignment or accelerated wear of internal components, increasing the need for regular inspection and maintenance of the equipment. Utility Model Content
[0003] The purpose of this invention is to provide a wear-resistant water pump rotor structure to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant water pump rotor structure, comprising:
[0005] Rotation axis;
[0006] The iron core frame is sleeved on the outside of the rotating shaft. A magnet is embedded in the outside of the iron core frame. Multiple limiting posts are evenly fixed to the top of the iron core frame. Limiting grooves are opened on the sides of the limiting posts.
[0007] The cylinder is sleeved on the outside of the iron core frame. A top cover is provided on the top of the cylinder. A through hole corresponding to the limiting post is provided in the middle of the top of the top cover. Fasteners are installed on the top of the top cover.
[0008] The assembly pressure ring is placed on the top of the top cover. The outer side of the assembly pressure ring is provided with multiple mounting grooves. When the mounting grooves correspond to the three limiting posts, the assembly pressure ring is installed on the top of the top cover. Rotating the assembly pressure ring will cause the assembly pressure ring to be locked in the three limiting grooves. At this time, the mounting grooves cooperate with the fasteners.
[0009] Preferably, a limiting plate is fixed to the outer side of the rotating shaft, and a plurality of positioning holes are equidistantly provided in the middle of the limiting plate, and a limiting groove is provided in the middle of the rotating shaft.
[0010] Preferably, the bottom of the core frame is fixedly connected with a plurality of positioning pins corresponding to positioning holes, and the bottom of the cylinder is provided with a limiting hole that cooperates with the positioning pins.
[0011] Preferably, the outer side of the iron core frame is provided with multiple mounting slots at equal intervals, and the magnet is fixedly installed in the mounting slots.
[0012] Preferably, the top of the cylinder is fixedly connected with a plurality of limiting posts II, and the outer side of the top cover is provided with a plurality of limiting grooves II that cooperate with the limiting posts II.
[0013] Preferably, the bottom of the top cover is fixedly connected to two limiting posts that cooperate with the limiting groove, and the middle of the top cover is provided with a through hole that cooperates with the limiting post.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: By using the assembly pressure ring and the top cover together, the structure can be fixed simply and effectively. During installation, the assembly pressure ring is rotated so that its edge is engaged in the limiting groove three, and then fixed with fasteners to form a multi-layer interlocking structure, ensuring that each component is tight and does not loosen. Through the interlocking design of the top cover, assembly pressure ring, limiting groove, positioning post, etc., the connection between each component is stable and firm, avoiding loosening during long-term use and reducing maintenance costs and time. The matching design of the positioning post with the positioning hole and limiting hole ensures accurate docking between the iron core frame and the cylinder. Through the cooperation of limiting post one and limiting post two with limiting groove one and limiting groove two, the movement range of each component is effectively limited, avoiding excessive wear or mutual friction between components, and extending the service life of the equipment. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the limiting post 2 of this utility model;
[0017] Figure 3 This is a schematic diagram of the assembly groove of this utility model;
[0018] Figure 4 This is a schematic diagram of the structure of the limiting post one of this utility model;
[0019] Figure 5 This is a schematic diagram of the structure of the cylindrical body of this utility model;
[0020] Figure 6 This is a schematic diagram of the structure of the limiting groove three of this utility model;
[0021] Figure 7 This is a schematic diagram of the mounting groove of this utility model.
[0022] In the diagram: 1. Rotating shaft; 2. Iron core frame; 3. Assembly slot; 4. Limiting plate; 5. Positioning hole; 6. Limiting slot one; 7. Top cover; 8. Limiting post one; 9. Limiting slot two; 10. Limiting post two; 11. Magnet; 12. Cylinder; 13. Limiting post three; 14. Limiting slot three; 15. Fastener; 16. Assembly pressure ring; 17. Mounting slot; 18. Positioning post. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1 , 2 As shown in Figures 3, 4, 5, 6, and 7, this utility model provides a technical solution: a wear-resistant water pump rotor structure, comprising: a rotating shaft 1; an iron core frame 2 fixedly sleeved on the outside of the rotating shaft 1, a wear-resistant sleeve made of ceramic material sleeved between the rotating shaft 1 and the iron core frame 2, a magnet 11 fixedly embedded on the outside of the iron core frame 2, a plurality of limiting posts 13 uniformly fixedly connected to the top of the iron core frame 2, and limiting grooves 14 opened on the sides of the limiting posts 13, with the openings of the limiting grooves 14 facing one side of the rotating shaft 1; and a cylinder 12 sleeved on the iron core frame 2. On the outside, a top cover 7 is provided on the top of the cylinder 12. The top center of the top cover 7 is provided with a through hole corresponding to the limiting post 13. A fastener 15 is installed on the top of the top cover 7. The fastener 15 is a fastening screw. An assembly pressure ring 16 is placed on the top of the top cover 7. Multiple mounting grooves 17 are provided on the outside of the assembly pressure ring 16. When the mounting groove 17 corresponds to the limiting post 13, the assembly pressure ring 16 is installed on the top of the top cover 7. Rotating the assembly pressure ring 16 will make the assembly pressure ring 16 lock in the limiting groove 14. At this time, the mounting groove 17 and the fastener 15 cooperate.
[0025] It should be noted that in this embodiment, the rotating shaft 1 is sleeved on the outside of the rotating shaft 1, the magnet 11 is installed on the outside of the iron core frame 2, and then the top cover 7 is placed on the top of the iron core frame 2, so that the limiting post 3 13 protrudes from the top of the top cover 7, and the top of the limiting groove 3 14 is higher than the top cover 7 and the bottom of the limiting groove 3 14 is located inside the top cover 7. Then, the mounting pressure ring 16 is sleeved on the outside of the rotating shaft 1, and the mounting pressure ring 16 is fitted and installed in close contact with the top cover 7. During installation, the mounting groove 17 and the limiting post 3 13 are aligned. Corresponding to 13, press the assembly ring 16 downwards so that the assembly ring 16 fits snugly against the top cover 7. Then rotate the assembly ring 16 so that the edge of the assembly ring 16 is locked in the limiting groove 3 14. When the mounting groove 17 on the outside of the assembly ring 16 rotates to the installation position of the fastener 15, pass the fastener 15 through the middle of the mounting groove 17 and thread it to the iron core frame 2. In this way, the assembly ring 16 is pressed tightly against the outside of the top cover 7 by the fastener 15. In this way, the multi-layer interlocking prevents it from loosening.
[0026] In one embodiment, such as Figure 2 , 3As shown in Figures 6 and 7, the bottom of the core frame 2 is fixed with a plurality of positioning pins 18 corresponding to the positioning holes 5, the bottom of the cylinder 12 is provided with a limiting hole that cooperates with the positioning pins 18, and a plurality of assembly slots 3 are provided at equal intervals on the outer side of the core frame 2, and the magnet 11 is fixedly installed in the assembly slots 3.
[0027] It should be noted that in this embodiment, three of the positioning pins 18 are threaded rods. The three threaded rods are distributed at equal angles about the center of the iron core frame 2. When the iron core frame 2 is installed inside the cylinder 12, the three threaded rods penetrate through the bottom of the cylinder 12 and are then tightened and fixed by nuts, thereby connecting and fixing the iron core frame 2 to the cylinder 12.
[0028] In one embodiment, such as Figure 3 , 4 As shown, a limiting plate 4 is fixed to the outer side of the rotating shaft 1. Multiple positioning holes 5 are equidistantly provided in the middle of the limiting plate 4. A limiting groove 6 is provided in the middle of the rotating shaft 1. Multiple limiting posts 10 are fixed to the top of the cylinder 12. Multiple limiting grooves 9 that cooperate with the limiting posts 10 are equidistantly provided on the outer side of the top cover 7. Two limiting posts 8 that cooperate with the limiting grooves 6 are fixed to the bottom of the top cover 7. A through hole that cooperates with the limiting posts 13 is provided in the middle of the top cover 7.
[0029] It should be noted that, in this embodiment, when the iron core frame 2 is fixed to the rotating shaft 1, the iron core frame 2 is sleeved on the outside of the rotating shaft 1. When the bottom of the iron core frame 2 contacts the limiting plate 4, the positioning pin 18 is inserted into the positioning hole 5. When the iron core frame 2 is engaged with the cylinder 12, the positioning pin 18 passes through the bottom of the cylinder 12 and is fixed. Then, the top cover 7 is placed on the top of the cylinder 12, so that the second limiting groove 9 and the second limiting pin 10 are engaged in a one-to-one correspondence. When the second limiting groove 9 and the second limiting pin 10 are engaged, the first limiting pin 8 is inserted into the first limiting groove 6, thereby interlocking the top cover 7 with the rotating shaft 1.
[0030] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0031] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] 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 wear-resistant water pump rotor structure, characterized in that: include: Rotation axis (1); The iron core frame (2) is sleeved on the outside of the rotating shaft (1). A magnet (11) is embedded in the outside of the iron core frame (2). A plurality of limiting posts (13) are uniformly fixed to the top of the iron core frame (2). A limiting groove (14) is opened on the side of the limiting posts (13). The cylinder (12) is sleeved on the outside of the iron core frame (2). The top of the cylinder (12) is provided with a top cover (7). The top center of the top cover (7) is provided with a through hole corresponding to the limiting post three (13). The top of the top cover (7) is equipped with a fastener (15). The assembly pressure ring (16) is placed on the top of the top cover (7). The outer side of the assembly pressure ring (16) is provided with multiple mounting grooves (17). When the mounting groove (17) corresponds to the limiting post three (13), the assembly pressure ring (16) is installed on the top of the top cover (7). The assembly pressure ring (16) is rotated to make the assembly pressure ring (16) stuck in the limiting groove three (14). At this time, the mounting groove (17) cooperates with the fastener (15).
2. The wear-resistant water pump rotor structure according to claim 1, characterized in that: A limiting plate (4) is fixed to the outside of the rotating shaft (1). Multiple positioning holes (5) are equidistantly provided in the middle of the limiting plate (4). A limiting groove (6) is provided in the middle of the rotating shaft (1).
3. The wear-resistant water pump rotor structure according to claim 1, characterized in that: The bottom of the iron core frame (2) is fixed with a plurality of positioning pins (18) corresponding to positioning holes (5), and the bottom of the cylinder (12) is provided with a limiting hole that cooperates with the positioning pins (18).
4. The wear-resistant water pump rotor structure according to claim 3, characterized in that: Multiple assembly slots (3) are provided at equal intervals on the outer side of the iron core frame (2), and the magnet (11) is fixedly installed in the assembly slots (3).
5. The wear-resistant water pump rotor structure according to claim 1, characterized in that: The top of the cylinder (12) is fixed with multiple limiting posts (10), and the outer side of the top cover (7) is provided with multiple limiting grooves (9) that cooperate with the limiting posts (10).
6. The wear-resistant water pump rotor structure according to claim 3, characterized in that: The bottom of the top cover (7) is fixedly connected with two limiting posts (8) that cooperate with the limiting groove (6), and the middle part of the top cover (7) is provided with a through hole that cooperates with the limiting post (13).