A housing assembly for a rotor

Abstract

The utility model relates to motor technical field especially relates to a casing assembly for rotor. Including casing body and casing insert piece, casing body is used for connecting rotor, and has the outer wall of annular structure, casing insert piece has the cross section of L type structure formed through own axis, including inlaying section and compensation section, inlaying section is connected with the outer wall of casing insert piece and fixes compensation section with casing body, compensation section is set on the arbitrary radial of casing body, compensation section is structured with stripping part and surplus part, stripping part and surplus part can be separately arranged, when the stripping part and surplus part of casing body arbitrary radial are separated, casing assembly forms new rotation center, the present application adds an independent replaceable casing insert piece outside casing body, and the material reduction operation required for dynamic balance adjustment is shifted from casing body to casing insert piece, so that the lint and burr generated during processing only exist in the outside of casing, and these metal impurities are prevented from falling into the inside of rotor.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a housing assembly for a rotor. Background Technology

[0002] As the core rotating component of an electric motor, the rotor is widely used in equipment such as fans and pumps. Its dynamic balance performance directly affects the vibration, noise, and service life of the entire machine. During the manufacturing process, the rotor must undergo dynamic balancing tests and corrections to ensure that its rotation center coincides with its geometric axis as much as possible.

[0003] Currently, one common method for dynamic balancing of rotor housing assemblies is to directly remove material from the housing itself. Specifically, after dynamic balancing testing, based on the test results, some material is removed from a specific radial direction of the housing body using methods such as punching, milling, or grinding to change the mass distribution of the entire rotor system and thus achieve balance.

[0004] However, the aforementioned existing technologies have the following drawbacks: During the shearing and punching processes on the machine housing, metal lint and flash are easily detached and fall into the rotor area inside the housing. These hard impurities, driven by the high-speed rotating rotor, can cause wear and scratches on components such as the shaft and bearings, affecting product quality. Utility Model Content

[0005] The purpose of this invention is to provide a housing assembly for a rotor, so as to solve the problem that directly reducing the material of the housing body in the prior art can easily damage the rotor.

[0006] The technical solution of this utility model is: a housing assembly for a rotor, comprising a housing body and housing inserts; The housing body is used to connect the rotor and has an outer wall with an annular structure; The housing insert has an L-shaped cross-section formed through its own axis, including an insert section and a compensation section. The insert section is connected to the outer wall of the housing insert to fix the compensation section to the housing body. The compensation section is provided in any radial direction of the housing body. The compensation section is constructed with a peeling part and a remaining part, which are separable; when the peeling part and the remaining part are separated in any radial direction of the housing body, the housing assembly forms a new rotation center.

[0007] Preferably, the housing insert is provided with a reinforcing rib at the L-shaped corner to connect the insert section and the compensation section. The reinforcing rib is used to maintain the relative position of the compensation section and the insert section. The peeling portion is constructed as the area between adjacent reinforcing ribs.

[0008] Preferably, an anti-rotation part is provided between the housing body and the housing insert to limit the relative rotation between the housing insert and the housing body.

[0009] Preferably, the anti-rotation part includes a protrusion on the outer wall of the housing body and a recess formed on the inner wall of the housing insert to cooperate with the protrusion.

[0010] Preferably, the anti-rotation part is configured as knurling processed on the outer wall of the housing body.

[0011] Preferably, the end of the compensation segment away from the inlay segment is designated as a free end, and the free end has an inward or outward rolled edge.

[0012] Preferably, the compensation section is made of mild steel.

[0013] Compared with the prior art, the advantages of this utility model are: (1) This application transfers the material reduction operation required for dynamic balancing from the main body of the housing to the housing insert by adding an independent and replaceable housing insert on the outside of the housing body. This ensures that the lint and flash generated during processing exist only on the outside of the housing, avoiding the risk of these metal impurities falling into the rotor, protecting the core components such as the shaft and bearings, and ensuring product quality.

[0014] (2) The housing body is completely protected without any processing throughout the process. Even if the trimming operation of the housing insert is mistaken, only a low-cost insert needs to be replaced. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a structural diagram of a housing assembly for a rotor according to the present invention; Figure 2 This is an exploded view of a rotor housing assembly according to the present invention. Figure 3 This is a cross-sectional view of a housing assembly for a rotor according to the present invention; Among them: 1. Housing body, 2. Housing insert, 21. Insert section, 22. Compensation section, 23. Reinforcing rib, 24. Rolled edge, 3. Anti-rotation part. Detailed Implementation

[0016] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0017] Furthermore, the terms "first" and "second" 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" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0018] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0019] The present invention will be further described in detail below with reference to specific embodiments: A housing assembly for a rotor includes a housing body 1 for connecting the rotor. During manufacturing, the rotor requires dynamic balancing to ensure its rotation center falls on its axis. A common method in the prior art is to adjust the rotor's rotation center by reducing the mass of the housing body 1 relative to the rotor in a radial direction through methods such as trimming, removal, and cutting.

[0020] This method can easily cause lint and burrs from the sheared casing to fall into the rotor, leading to wear on the rotor shaft and affecting the rotor's quality.

[0021] To solve this problem, such as Figures 1-3 As shown, this application provides a housing insert 2 on the outer wall of the annular structure of the housing body 1.

[0022] The housing insert 2 has an L-shaped cross section through its own axis, including an insert section 21 and a compensation section 22. The insert section 21 is connected to the outer wall of the housing insert 2 to fix the compensation section 22 to the housing body 1. The compensation section 22 is formed into a ring structure, so that it is provided in any radial direction of the housing body 1.

[0023] The housing insert 2 can be fixed to the housing body 1 by interference fit, or by welding or bonding. Preferably, the housing insert 2 is interference-fitted to the housing body 1 by heating and expanding the hole, or it can be directly pressed in by tooling. Compared with welding, this fitting method allows the housing insert 2 to be removed and replaced from the housing body.

[0024] The compensation section 22 is constructed with a separable peeling portion and a remaining portion. The peeling portion is designed to trim and peel off the portion of the compensation section 22, and the remaining portion is designed to be left behind. When the peeling portion and the remaining portion separate in any radial direction of the housing body 1, the housing assembly forms a new center of rotation.

[0025] By adding housing insert 2 and performing material reduction processing on housing insert 2, the problem of directly trimming the housing body 1 and affecting the rotor quality is avoided.

[0026] Furthermore, the compensation section 22 can be made of copper or mild steel, which have lower hardness.

[0027] In order to ensure that the compensation section 22 and the inlay section 21 maintain a consistent relative position and posture when the rotor rotates, and to avoid the change of the rotor rotation center caused by the deformation of the compensation section 22, the housing insert 2 is provided with a reinforcing rib 23 connecting the inlay section 21 and the compensation section 22 at the L-shaped corner, and the peeling part is constructed as the area between adjacent reinforcing ribs 23.

[0028] Furthermore, an anti-rotation part 3 is provided between the housing body 1 and the housing insert 2 to limit the relative rotation between the housing insert 2 and the housing body 1.

[0029] In a preferred embodiment of this application, the anti-rotation part 3 includes a protrusion provided on the outer wall of the housing body 1, and a recess formed on the inner wall of the housing insert 2 to cooperate with the protrusion. The protrusion and the recess are formed by applying a radial force to the insert section 21 of the housing insert 2 after the housing insert 2 and the housing body 1 are assembled.

[0030] In other embodiments of this application, the anti-rotation part 3 is configured as knurling processed on the outer wall of the housing body 1, thereby increasing the friction between the outer wall of the housing body 1 and the inner wall of the housing insert 2 to achieve the anti-rotation function of the housing insert 2.

[0031] The end of the compensation section 22 that is far from the inlay section 21 is designated as the free end. To prevent the free end from being too sharp and causing injury to the operator, the free end is provided with an inward or outward rolled edge 24.

[0032] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A housing assembly for a rotor, characterized in that, Includes the main body of the casing (1) and the casing inserts (2); The housing body (1) is used to connect the rotor and has an outer wall with an annular structure; The housing insert (2) has a cross section that forms an L-shaped structure through its own axis, including an insert section (21) and a compensation section (22). The insert section (21) is connected to the outer wall of the housing insert (2) to fix the compensation section (22) to the housing body (1). The compensation section (22) is provided in any radial direction of the housing body (1). The compensation section (22) is constructed with a peeling part and a remaining part, which are separable; when the peeling part and the remaining part are separated in any radial direction of the housing body (1), the housing assembly forms a new rotation center.

2. A housing assembly for a rotor according to claim 1, characterized in that, The housing insert (2) is provided with a reinforcing rib (23) at the L-shaped corner to connect the insert section (21) and the compensation section (22). The reinforcing rib (23) is used to maintain the relative position of the compensation section (22) and the insert section (21). The peeling part is constructed as the area between adjacent reinforcing ribs (23).

3. A housing assembly for a rotor according to claim 1, characterized in that, An anti-rotation part (3) is provided between the housing body (1) and the housing insert (2) to limit the relative rotation between the housing insert (2) and the housing body (1).

4. A housing assembly for a rotor according to claim 3, characterized in that, The anti-rotation part (3) includes a protrusion on the outer wall of the housing body (1) and a recess on the inner wall of the housing insert (2) that cooperates with the protrusion.

5. A housing assembly for a rotor according to claim 3, characterized in that, The anti-rotation part (3) is constructed as a knurling process on the outer wall of the housing body (1).

6. A housing assembly for a rotor according to claim 1, characterized in that, The end of the compensation section (22) away from the inlay section (21) is set as a free end, and the free end is provided with an inward or outward rolled edge (24).

7. A housing assembly for a rotor according to claim 1, characterized in that, The compensation section (22) is made of mild steel.

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