Novel magnetic ring assembly

Abstract

The utility model discloses a novel magnetic ring assembly which comprises a transmission shaft and a magnetic ring, and the magnetic ring is coaxially sleeved on the transmission shaft. The magnetic ring and the transmission shaft are of an integrated structure, and the magnetic ring is fixedly formed on the transmission shaft in a secondary forming mode to form a magnetic ring shaft assembly structure. The integrated structure of the magnetic ring and the transmission shaft is adopted, so that a structural gap between the magnetic ring and the transmission shaft can be effectively eliminated, and the magnetic ring can be fixed; the problem that in the mode that the magnetic ring adheres to the transmission shaft through glue, due to the fact that the curing time of the glue is insufficient, the magnetic ring displaces can be effectively solved. Meanwhile, the risk of separation of the magnetic ring caused by sharp reduction of the heating strength of glue due to heating of the motor during operation of the motor can be avoided; the performance of the magnetic ring shaft assembly can be improved, the dynamic balance performance of the magnetic ring shaft assembly is improved from the G16 grade to the G2.5 grade, and the double peak value of a motor adopting the magnetic ring shaft assembly is reduced by 60%.

Description

Technical Field

[0001] The utility model belongs to the technical field of magnetic ring components and relates to a novel magnetic ring component. Background Art

[0002] In the prior art, the structure of the magnetic ring shaft assembly is mainly composed of a transmission shaft and a magnetic ring fixed on the transmission shaft. The magnetic ring is usually made of magnetic powder by molding and then fixed on the transmission shaft by bonding. In the prior art, the commonly used bonding method is mainly achieved by glue. This processing method has great disadvantages. When the magnetic ring is bonded with glue, the assembly needs to be left to work to provide sufficient curing time for the glue. If the glue is not completely cured, the magnetic ring will be displaced, resulting in defects. The entire processing flow is inefficient, the waiting time is long, and the investment in personnel and tooling equipment is high. In the process of motor operation, the heat generated by the motor will cause the thermal strength of the glue to drop sharply, making the magnetic ring at risk of falling off. Utility Model Content

[0003] In order to solve the implementation technical problems, the utility model adopts the following technical solutions:

[0004] A novel magnetic ring assembly comprises: a transmission shaft and a magnetic ring, wherein the magnetic ring is coaxially sleeved on the transmission shaft; the magnetic ring and the transmission shaft are an integrated structure, and the magnetic ring is fixedly formed on the transmission shaft by secondary molding to form a magnetic ring shaft assembly structure.

[0005] As a further solution of the utility model: the magnetic ring is formed directly on the transmission shaft by using magnetic powder material and cooperating with a mold.

[0006] As a further solution of the utility model: one or more structures of grooves, knurling and ribbed structures are formed on the surface of the transmission shaft.

[0007] The beneficial effects of the utility model are as follows: the integrated structure of the magnetic ring and the transmission shaft can effectively eliminate the structural gap between the magnetic ring and the transmission shaft, and can achieve a fixing effect for the magnetic ring; it can effectively solve the problem of magnetic ring displacement caused by insufficient glue curing time when the magnetic ring is adhered to the transmission shaft by glue; it can also avoid the risk of the magnetic ring detaching due to a sharp drop in the heat intensity of the glue caused by the heat generated by the motor during operation; it can improve the performance of the magnetic ring shaft assembly, and improve the dynamic balancing performance of the magnetic ring shaft assembly from G16 level to G2.5 level, and reduce the peak value of the motor using this type of magnetic ring shaft assembly by 60%. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the utility model. DETAILED DESCRIPTION

[0009] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. It should be understood that the present application is not limited to the example embodiments disclosed herein. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0010] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0011] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0012] The utility model provides Figure 1 In an embodiment of the utility model, a new type of magnetic ring assembly includes: a transmission shaft 2 and a magnetic ring 1, and the magnetic ring 1 is coaxially mounted on the transmission shaft 2; and an integrated structure is adopted between the magnetic ring 1 and the transmission shaft 2, which can effectively eliminate the structural gap between the magnetic ring 1 and the transmission shaft 2, and can enable the magnetic ring 1 to achieve a fixing effect, and can effectively solve the problem of displacement of the magnetic ring 1 due to insufficient curing time of the glue when the magnetic ring 1 is adhered to the transmission shaft 2 by glue; at the same time, it can also avoid the risk of detachment of the magnetic ring 1 due to a sharp drop in the thermal strength of the glue caused by the heat generated by the motor during operation.

[0013] During the preparation of the magnetic ring 1 shaft assembly, the magnetic ring 1 is fixed on the transmission shaft 2 by secondary molding; in the present embodiment, the magnetic ring 1 is made of magnetic powder material. During preparation, the transmission shaft 2 is placed in a molding mold of the magnetic ring 1, and the magnetic powder is directly molded on the transmission shaft 2 by molding, thereby completing the production of the magnetic ring 1 shaft assembly structure.

[0014] Furthermore, in order to achieve the effect of improving the tangential or axial separation strength of the magnetic ring 1 shaft assembly, the technical purpose of improving the tangential or axial separation strength can be achieved by forming one or more of the following structures: grooving, knurling, and ribbed structures on the surface of the transmission shaft 2.

[0015] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "including a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0016] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A new type of magnetic ring assembly, characterized in that: include: The transmission shaft and the magnetic ring are coaxially mounted on the transmission shaft. The magnetic ring and the transmission shaft are an integrated structure. The magnetic ring is fixed on the transmission shaft by secondary molding to form a magnetic ring shaft assembly structure.

2. A novel magnetic ring assembly according to claim 1, characterized in that: The magnetic ring is formed directly on the transmission shaft by using magnetic powder material and cooperating with the mold.

3. A novel magnetic ring assembly according to claim 1, characterized in that: One or more structures of grooves, knurling and ribbed structures are formed on the surface of the transmission shaft.

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