Water pump type magnetic suspension ultrathin shielding sleeve structure

Abstract

The utility model discloses a water pump class magnetic suspension ultrathin shielding sleeve structure, which comprises a magnetic suspension stator and a shielding sleeve, the installation surface of the shielding sleeve is provided with a plurality of 2 mm * 3 mm reinforcing ribs, a stator support plate on the magnetic suspension stator is provided with a plurality of grooves matched with the reinforcing ribs, the reinforcing ribs are in clearance fit with the grooves, and the shielding sleeve is arranged on the magnetic suspension stator. According to the magnetic suspension shielding sleeve structure designed by the utility model, the problem of processing bulge of the shielding sleeve can be effectively solved, the thinnest part of the shielding sleeve can be designed to be less than or equal to 0.4 mm, and the flatness of the shielding sleeve is detected to be less than or equal to 0.03 mm after finish machining is completed.

Description

Technical Field

[0001] This utility model relates to the technical field of magnetic levitation stator shielding sleeve structure, and in particular to a water pump-type magnetic levitation ultra-thin shielding sleeve structure. Background Technology

[0002] The magnetic levitation stator is a key component in a magnetic levitation system. The fundamental principle of magnetic levitation technology is to use magnetic force to levitate an object. For devices such as magnetic levitation motors, the stator is the part that generates the magnetic field. The magnetic levitation stator interacts with the rotor through electromagnetic force, enabling the rotor to levitate and rotate without mechanical contact. Based on the laws of electromagnetic induction and Ampere's law, when alternating current is applied to the stator windings, an alternating magnetic field is generated. This magnetic field interacts with the permanent magnets or electromagnets on the rotor, producing levitation force and driving force.

[0003] The magnetic levitation stator shielding sleeve is an ultra-thin-walled component (design thickness 0.3-0.4mm) with a large machined surface (inner diameter 93mm, outer diameter 345mm). Therefore, it is prone to heat deformation during the welding process after assembly. Bulging is also a common occurrence during the machining of the shielding components. (See details...) Figure 1 As shown, bulges can seriously affect product quality. In view of the above situation, this utility model provides a solution. Utility Model Content

[0004] The purpose of this invention is to provide a magnetic levitation ultra-thin shielding sleeve structure for water pumps.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A water pump-type magnetic levitation ultra-thin shielding sleeve structure includes a magnetic levitation stator and a shielding sleeve. The mounting surface of the shielding sleeve has multiple 2mm×3mm reinforcing ribs. The stator support plate on the magnetic levitation stator has multiple grooves that mate with the reinforcing ribs. The reinforcing ribs and grooves are fitted with a clearance fit. The magnetic levitation stator and the shielding sleeve are bonded together by applying epoxy adhesive and then fixed by argon arc welding. Preferably, the adhesive thickness is controlled to be less than 0.1mm. After bonding, it is fixed using tooling fixtures. After the shielding sleeve is assembled and bonded, it is argon arc welded using an intermittent welding process to control the internal temperature of the product to be <180 degrees Celsius. After welding, the shielding sleeve is baked at 130 degrees Celsius for 3 hours for curing.

[0007] Furthermore, the assembly gap between the reinforcing rib and the groove is 0.05 to 0.1 mm, which enhances the shielding sleeve's ability to resist heat-induced delamination.

[0008] Furthermore, the flatness of the mounting end face of the magnetic levitation stator and the shielding sleeve is no greater than 0.02 mm.

[0009] Furthermore, the thickness of the thinnest part of the shielding sleeve is no more than 0.4 mm.

[0010] Furthermore, after the shielding sleeve is assembled and processed with the magnetic levitation stator, the flatness of the shielding sleeve surface is no greater than 0.03mm.

[0011] Furthermore, the number of reinforcing ribs and grooves is 8, and the number of reinforcing ribs can be designed according to the actual product size and specifications.

[0012] In summary, the present invention has the following beneficial effects: the magnetic levitation shielding sleeve structure designed in this invention can effectively solve the problem of bulging during shielding sleeve processing. The thinnest part of the shielding sleeve can be designed to be less than or equal to 0.4mm, and the flatness of the shielding sleeve after precision processing is less than or equal to 0.03mm. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the bulge in the existing magnetic levitation stator shielding sleeve.

[0014] Figure 2 This is a schematic diagram of the magnetic levitation stator shielding sleeve structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the installation of the magnetic levitation stator shielding sleeve of this utility model.

[0016] In the diagram, 1 is the magnetic levitation stator; 2 is the shielding sleeve; 3 is the stator support plate; 4 is the reinforcing rib; and 5 is the groove. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings. The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0018] like Figure 2 and Figure 3As shown, a water pump-type magnetic levitation ultra-thin shielding sleeve structure includes a magnetic levitation stator 1 and a shielding sleeve 2. The mounting surface of the shielding sleeve 2 is provided with multiple 2mm×3mm reinforcing ribs 4. The stator support plate 3 on the magnetic levitation stator 1 is provided with multiple grooves 5 that mate with the reinforcing ribs 4. The reinforcing ribs 4 and grooves 5 are clearance-fitted. The magnetic levitation stator 1 and the shielding sleeve 2 are bonded together by applying epoxy adhesive and then fixed by argon arc welding. Preferably, the adhesive thickness is controlled to be less than 0.1mm. After bonding, it is fixed using tooling fixtures. After the shielding sleeve is assembled and bonded, it is subjected to argon arc welding using an intermittent welding process, controlling the internal temperature of the product to be <180 degrees Celsius. After welding, the shielding sleeve is baked at 130 degrees Celsius for 3 hours for curing.

[0019] Furthermore, the assembly gap between the reinforcing rib 4 and the groove 5 is 0.05 to 0.1 mm. By designing the structure of the reinforcing rib 4 and the groove 5, the ability of the shielding sleeve to resist heat-induced delamination is effectively enhanced.

[0020] Furthermore, the flatness of the mounting end faces of the magnetic levitation stator 1 and the shielding sleeve 2 is no greater than 0.02 mm.

[0021] Furthermore, the thickness of the thinnest part of the shielding sleeve is set to be no more than 0.4 mm.

[0022] Furthermore, after the shielding sleeve 2 is assembled and processed with the magnetic levitation stator 1, the flatness of the surface of the shielding sleeve 2 is set to be no greater than 0.03mm.

[0023] Furthermore, the number of reinforcing ribs 4 and grooves 5 is 8, and the number of reinforcing ribs 4 can be designed according to the actual product size and specifications.

[0024] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A water pump-type magnetic levitation ultrathin shielding sleeve structure, comprising a magnetic levitation stator (1) and a shielding sleeve (2), characterized in that: The mounting surface of the shielding sleeve (2) is provided with multiple 2mm×3mm reinforcing ribs (4). The stator support plate (3) on the magnetic levitation stator (1) is provided with multiple grooves (5) that cooperate with the reinforcing ribs (4). The reinforcing ribs (4) and the grooves (5) are fitted with a gap. The magnetic levitation stator (1) and the shielding sleeve (2) are bonded together by applying epoxy adhesive and then fixed by argon arc welding.

2. The water pump-type magnetic levitation ultra-thin shielding sleeve structure according to claim 1, characterized in that: The assembly gap between the reinforcing rib (4) and the groove (5) is 0.05 to 0.1 mm.

3. The water pump-type magnetic levitation ultra-thin shielding sleeve structure according to claim 2, characterized in that: The flatness of the mounting end faces of the magnetic levitation stator (1) and the shielding sleeve (2) is no greater than 0.02 mm.

4. The water pump-type magnetic levitation ultra-thin shielding sleeve structure according to claim 3, characterized in that: The thickness of the thinnest part of the shielding sleeve is no more than 0.4 mm.

5. The water pump-type magnetic levitation ultra-thin shielding sleeve structure according to claim 3, characterized in that: After the shielding sleeve (2) is assembled and processed with the magnetic levitation stator (1), the flatness of the surface of the shielding sleeve (2) is no greater than 0.03mm.

6. The water pump-type magnetic levitation ultra-thin shielding sleeve structure according to claim 1, characterized in that: The number of the reinforcing ribs (4) and grooves (5) is 8.

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