Motor rotor cleaning tool

Abstract

This utility model discloses a motor rotor cleaning fixture, comprising a housing: a top opening for inserting the rotor, with fixing elements around the top opening; a bottom fixing groove for inserting a bearing at one end of the rotor; an openable inspection door on the side wall, allowing cleaning of the housing interior; a pressure plate: located within the top opening, with a pressure plate fixing groove for inserting a bearing at the other end of the rotor, the fixing elements restricting the axial and radial displacement of the pressure plate relative to the rotor shaft; and a drive element: driving the rotor to rotate within the housing. In use, the rotor is placed in the housing, one bearing of the rotor is fixed in the bottom fixing groove, and the other bearing is fixed by the pressure plate. After fixing the pressure plate, the drive element drives the rotor to rotate, throwing impurities inside the rotor into the housing. The rotor is then removed, the inspection door is opened, and the interior is cleaned, thus achieving the purpose of discharging impurities from inside the rotor by driving its own rotation.

Description

Technical Field

[0001] This utility model relates to the field of motor assembly and manufacturing, and in particular to a motor rotor cleaning fixture. Background Technology

[0002] After the motor rotor is machined, grease, debris and other impurities will remain in the gaps. If not cleaned, they will enter other parts of the motor, such as the stator, during use, causing motor failure and damage. However, wiping, brushing and blowing can only clean the surface and cannot ensure that impurities deep inside the rotor will not be carried to the outside after the rotor rotates. Utility Model Content

[0003] The present invention aims to at least partially solve one of the technical problems in the aforementioned technologies. Therefore, the purpose of this invention is to provide a cleaning fixture that discharges impurities from inside a rotor by driving the rotor to rotate.

[0004] To achieve the above objectives, embodiments of this utility model provide a motor rotor cleaning fixture, comprising:

[0005] Housing: The top opening allows the rotor to be inserted, and there are fixing elements around the top opening; the bottom forms a bottom fixing groove for inserting the bearing at one end of the rotor; the side wall has an openable maintenance door, which can be opened to clean the inside of the housing.

[0006] Pressure plate: Located in the top opening, it has a pressure plate fixing groove for the bearing at the other end of the rotor to be inserted. The fixing element moves to restrict the axial and radial displacement of the pressure plate relative to the rotor shaft.

[0007] Drive element: drives the rotor to rotate inside the housing.

[0008] According to the embodiment of the present utility model, when using the motor rotor cleaning fixture, the rotor is placed in the housing, one end of the rotor bearing is fixed in the bottom fixing groove, and the other end bearing is fixed by the pressure plate. After the pressure plate is fixed, the rotor is driven to rotate by the driving element, and the impurities inside the rotor are thrown out into the housing. Then the rotor is removed and the inspection door is opened to clean the inside.

[0009] In addition, the motor rotor cleaning fixture proposed in the above embodiments of this utility model may also have the following additional technical features:

[0010] Optionally, the driving element is a motor stator, which is disposed inside the housing.

[0011] Optionally, the driving element is a motor, and the motor shaft is connected by a transmission belt or coupling. The rotation of the motor shaft drives the rotor to rotate synchronously.

[0012] Optionally, the pressure plate is circular, and a pressure plate fixing groove is formed at the center of the pressure plate.

[0013] Optionally, the fixing element is a quick clamp, with at least three provided around the top opening.

[0014] Optionally, it also includes a detection element disposed on the pressure plate to detect the installation status of the pressure plate and the rotor rotation speed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the combined state structure according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the exploded state structure according to an embodiment of the present invention;

[0017] Figure 3 This is a cross-sectional structural diagram according to an embodiment of the present invention.

[0018] Label Explanation:

[0019] Box 1 Bottom Fixing Slot 11 Fixing Component 12

[0020] Pressure plate 2 Pressure plate fixing groove 21

[0021] Drive element 3

[0022] Detection element 4

[0023] Motor rotor 100, rotor bearing 101. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] When using this utility model, the rotor is placed in the housing, one end of the rotor bearing is fixed in the bottom fixing groove, and the other end bearing is fixed by the pressure plate. After the pressure plate is fixed, the rotor is driven to rotate by the drive element, which throws the impurities inside the rotor into the housing. Then the rotor is removed and the inspection door is opened to clean the inside.

[0026] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0027] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0028] The design of this utility model is to provide a device that can temporarily fix a rotor, in which the rotor can rotate to a designed speed, thereby throwing out impurities inside the rotor.

[0029] Figures 1 to 3 A cleaning fixture for a motor rotor 100 according to an embodiment of the present invention includes:

[0030] Housing 1: The top opening allows the rotor to be inserted, and fixing elements 12 are provided around the top opening; the bottom forms a bottom fixing groove 11 for inserting the bearing at one end of the rotor; the side wall has an openable maintenance door, which allows cleaning of the interior of housing 1. With this design, the rotor can be easily inserted. Different motor rotors 100 vary, some weighing over ten kilograms, making manual handling difficult. Using external equipment to lift and insert the rotor reduces manpower consumption during the process. Therefore, the preferred design is an opening at the top of housing 1 for rotor insertion. In this case, the rotor is fixed with its rotation axis pointing towards the ground.

[0031] The rotor has bearings at both ends of the rotating shaft. The rotor of this utility model is in a fully assembled state, so there are assembled bearings at both ends. For some rotors that do not have bearings at both ends, the bearings can be fixed in the housing 1 and then the rotor can be inserted into the bearing inner hole.

[0032] The purpose of an inspection door is to facilitate cleaning of the interior. Therefore, the inspection door itself can be made of transparent material to make it easy to observe whether the interior has reached the required cleaning state.

[0033] The fixing element 12 is a quick clamp, with at least three arranged around the top opening. It is designed to apply axial pressure to the pressure plate 2, while three or more arranged in a group can withstand the radial force during rotation.

[0034] Pressure plate 2: It is located in the top opening and has a pressure plate fixing groove 21 for the bearing at the other end of the rotor to be inserted. The fixing element 12 is activated to restrict the axial and radial displacement of the pressure plate 2 relative to the rotor shaft.

[0035] The pressure plate 2 can be circular, so that it can be directly inserted into the opening when in use, and the center of the pressure plate 2 forms a pressure plate fixing groove 21.

[0036] To facilitate temporary fixing of the bearing, a groove can be made around the bearing in the bottom fixing groove 11 and the pressure plate fixing groove 21. An O-ring or other sealing ring is placed in the groove. When the bearing is placed in the groove, it is elastically fixed by compression. This way, the rotor will not be damaged when rotating. The bearing can be removed after cleaning.

[0037] Drive element 3: Drives the rotor to rotate within housing 1. Drive element 3 enables the rotor to reach the working speed after assembly and maintain it for a period of time to ensure that no impurities are thrown out under normal working conditions. There are two possible solutions for this:

[0038] The drive element 3 is the motor stator, which is located inside the housing 1. This design completely simulates the working state of the rotor, such as heat generation.

[0039] The driving element 3 is a motor. The motor shaft is connected by a transmission belt or coupling. The rotation of the motor shaft drives the rotor to rotate synchronously. The advantage of this scheme is that if the rotor and the stator of the aforementioned scheme cannot achieve the effect of driving the rotor to rotate, then the rotor can be driven by external mechanical force. This can maximize the compatibility with various rotors and make the device more practical. Of course, a gearbox or other connection method can also be used.

[0040] It also includes a detection element 4, which is set on the pressure plate to detect the installation status of the pressure plate and the rotation speed of the rotor. The detection element 4 can be configured as follows: a limit switch is used, with the limit end passing through the pressure plate and entering the pressure plate fixing groove. When it can contact the rotor bearing 101, the bearing enters. Only when the bearing reaches a certain assembly depth can the limit switch be triggered to issue a command. It can be connected to a simple light bulb circuit, and the rotor is determined to be assembled in place by the light turning on and off. It can also be connected to an external control system to provide prompts on the terminal display device.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A motor rotor cleaning fixture, characterized in that: include The housing has an opening at the top for the rotor to be inserted, and fixing elements are provided around the top opening; a bottom fixing groove is formed at the bottom for the bearing at one end of the rotor to be inserted; the side wall has an openable maintenance door, which can be opened to clean the inside of the housing. The pressure plate is located in the top opening and has a pressure plate fixing groove for the bearing at the other end of the rotor to be inserted. The fixing element moves to limit the axial and radial displacement of the pressure plate relative to the rotor shaft. The driving element drives the rotor to rotate inside the housing.

2. The motor rotor cleaning fixture as described in claim 1, characterized in that: The driving element is a motor stator, which is located inside the housing.

3. The motor rotor cleaning fixture as described in claim 1, characterized in that: The driving element is a motor, and the motor shaft is connected by a transmission belt or coupling. The rotation of the motor shaft drives the rotor to rotate synchronously.

4. The motor rotor cleaning fixture as described in claim 1, characterized in that: The pressure plate is circular, and a pressure plate fixing groove is formed at the center of the pressure plate.

5. The motor rotor cleaning fixture as described in claim 1 or 4, characterized in that: The fixing element is a quick clamp, with at least three arranged around the top opening.

6. The motor rotor cleaning fixture as described in claim 1, characterized in that: It also includes a detection element, which is disposed on the pressure plate to detect the installation status of the pressure plate and the rotation speed of the rotor.

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