Micromotor rotor cleaning device

Abstract

The utility model relates to the technical field of micromotor production and manufacturing, and provides a micromotor rotor cleaning device which comprises a disc-shaped mounting plate, a motor, a brush rod and a brush cylinder, the motor is fixedly arranged on one side of the mounting plate, the brush rod is rotationally arranged on the other side of the mounting plate, and the brush cylinder is rotationally connected with the mounting plate; the three brush rods are uniformly distributed on the circumference, can synchronously rotate under the driving of the motor and can drive the brush cylinder to rotate on the mounting plate in the same direction; the brush cylinder is provided with three concyclic arc-shaped plate brushes, and the arc-shaped plate brushes correspond to the brush rods and cover the peripheries of the brush rods. According to the utility model, the three brush rods which are uniformly distributed on the circumference and the three arc-shaped plate brushes corresponding to the brush rods are driven by the motor to rotate, so that the grooves on the inner and outer surfaces of the rotor core can be quickly cleaned, the cleaning efficiency is high, and the labor intensity can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of micro motor manufacturing technology, specifically to a micro motor rotor cleaning device. Background Technology

[0002] Micro motors, also known as miniature motors, are motors with a diameter of less than 160mm or a rated power of less than 750mW. Micro motors are commonly used in control systems or transmission machinery loads to perform functions such as detection, analysis, amplification, execution, or conversion of electromechanical signals or energy.

[0003] As a type of small motor that converts electrical energy into mechanical energy, a micro motor is typically composed of a permanent magnet, coils, and a rotor. From an axial perspective, the micro motor rotor consists of three circumferentially distributed rotor cores in a T-shape. Each rotor core has numerous grooves perpendicular to the rotor axis on its outer arc surface and on the inner surface between every two rotor cores.

[0004] Before the micro-motor rotor is wound, it needs to be cleaned to remove debris or dust adhering to the inner and outer grooves. Currently, the cleaning of micro-motor rotors is mostly done manually with brushes, which is ineffective, inefficient, and labor-intensive. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a micro-motor rotor cleaning device to solve the problems of poor manual cleaning effect, low efficiency, and high labor intensity in existing technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A micro motor rotor cleaning device, comprising:

[0008] The mounting plate is disc-shaped.

[0009] The electric motor is fixedly mounted on one side of the mounting plate;

[0010] The brush rod is rotatably mounted on the other side of the mounting plate; and

[0011] The brush cylinder is rotatably connected to the mounting plate.

[0012] The brush rod has three evenly distributed circumferences, which can rotate synchronously under the drive of the motor and can rotate in the same direction on the mounting plate along with the brush cylinder; the brush cylinder is provided with three concentric arc-shaped brushes, which correspond to the brush rod and cover the outer periphery of the brush rod.

[0013] Optionally, the output end of the motor is connected to a drive gear after passing through a through hole in the middle of the mounting plate;

[0014] Each of the brush rods is connected to a driven gear at one end, which meshes with the driving gear. The driven gear is rotatably connected to the mounting plate.

[0015] The brush cylinder is rotatably connected to the mounting plate via an internal toothed ring, and the three arc-shaped brushes are respectively connected to the internal toothed ring;

[0016] The internal teeth of the internal gear ring mesh with the driven gear.

[0017] Optionally, the diameter of the driving gear is larger than the diameter of the driven gear, and their transmission ratio is 1:1.5 to 2.

[0018] Optionally, each of the brush bars is provided with a plurality of first bristles and second bristles evenly distributed along its circumferential surface, wherein the first bristles and the second bristles are staggered.

[0019] The first bristles are longer than the second bristles. The first bristles are thinner and softer, while the second bristles are thicker and harder.

[0020] Optionally, one end of each brush bar connected to the driven gear is a stud, and the stud is internally threaded into a threaded hole in the middle of the driven gear.

[0021] Optionally, the mounting plate has three shaft holes evenly distributed around the central through hole;

[0022] The driven gear has a rotating shaft on the side facing away from the brush bar, and the rotating shaft is rotatably connected to the shaft hole.

[0023] Optionally, a slot is provided on the rotating shaft, and the driven gear is engaged in the slot and positioned on the mounting plate by a snap ring after the rotating shaft rotates through the shaft hole.

[0024] Optionally, the curved brush has a plurality of third and fourth bristles of different thicknesses and lengths on the side facing the brush bar, with the third and fourth bristles arranged alternately.

[0025] Optionally, the inner gear ring has three evenly distributed arc-shaped slots on one side facing away from the motor, and the arc-shaped brush is inserted into the arc-shaped slots.

[0026] Optionally, the internal gear ring is rotatably connected to the outer ring of the mounting plate via a bearing;

[0027] An annular baffle is connected to one side of the internal gear ring facing the motor. The annular baffle rotates and fits against the mounting plate to axially limit the internal gear ring.

[0028] Compared with the prior art, the beneficial effects of this utility model are:

[0029] 1. The three circumferentially distributed brush rods and the corresponding three arc-shaped brushes are driven by an electric motor to rotate, which can quickly clean the grooves on the inner and outer surfaces of the rotor core. The cleaning efficiency is high and the labor intensity can be effectively reduced.

[0030] 2. The transmission ratio between the driving gear and the driven gear is 1:1.5 to 2. That is, through the meshing of the driving gear and the driven gear, the brush rod rotates faster and can clean the debris or dust in the groove more quickly, thus improving cleaning efficiency.

[0031] 3. The first and second brush bristles, which are staggered and have different lengths and thicknesses, can complement each other. When the brush bar rotates, it can thoroughly clean the grooves on the inner surface between each pair of rotor cores, resulting in a good cleaning effect.

[0032] 4. The brush bar is detachably connected to the driven gear via a stud at one end, which facilitates the replacement of the brush bar after the first and second brush bristles are worn or damaged, making maintenance convenient;

[0033] 5. The third and fourth bristles, which are of different thicknesses and lengths and are arranged at intervals, can thoroughly clean the grooves on the outer surface of each rotor core when the brush cylinder rotates, resulting in a good cleaning effect.

[0034] 6. The arc-shaped brush is designed to fit into the arc-shaped slot, which facilitates quick replacement of the arc-shaped brush after the bristles wear or break, making maintenance convenient. At the same time, the arc-shaped brush can be removed when the groove on the outer surface of the rotor core does not need to be cleaned, so as to observe the operation of the brush rod. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0037] Figure 2 This is a three-dimensional structural diagram of the present invention from another angle;

[0038] Figure 3 for Figure 2 A magnified schematic diagram of section A in the middle;

[0039] Figure 4 This is a three-dimensional structural diagram of the concealed brush cylinder of this utility model;

[0040] Figure 5 This is a three-dimensional structural diagram of the driven gear;

[0041] Figure 6 This is a schematic diagram of the three-dimensional structure of the brush rod;

[0042] Figure 7 This is a schematic diagram of the three-dimensional structure of the internal gear ring. Detailed Implementation

[0043] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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.

[0045] 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] In this utility model, unless otherwise explicitly 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 part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] 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 above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this invention.

[0049] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0050] See Figures 1 to 7 As shown, this utility model provides a micro motor rotor cleaning device, comprising:

[0051] Mounting plate 100 is disc-shaped;

[0052] The electric motor 200 is fixedly mounted on one side of the mounting plate 100;

[0053] Brush rod 300 is rotatably mounted on the other side of mounting plate 100; and

[0054] The brush cylinder 600 is rotatably connected to the mounting plate 100;

[0055] Among them, three brush rods 300 are evenly distributed around the circumference. They can rotate synchronously under the drive of the motor 200 and can carry the brush cylinder 600 to rotate in the same direction on the mounting plate 100. The brush cylinder 600 is provided with three concentric arc-shaped brushes 610, which correspond to the brush rods 300 and cover the outer periphery of the brush rods 300.

[0056] Specifically, the output end of the motor 200 passes through the through hole in the middle of the mounting plate 100 and is connected to the drive gear 400; one end of each brush bar 300 is connected to a driven gear 500 that meshes with the drive gear 400, and the driven gear 500 is rotatably connected to the mounting plate 100; the brush cylinder 600 is rotatably connected to the mounting plate 100 through the internal gear ring 620, and the three arc-shaped brushes 610 are respectively connected to the internal gear ring 620; the internal teeth of the internal gear ring 620 mesh with the driven gear 500.

[0057] During operation, the micro-motor rotor to be cleaned is first fixed in place by a fixture, and the area between each pair of rotor cores is aligned with the brush bar 300. Then, the motor 200 is started, and the power is transmitted to the brush bar 300 through the meshing of the drive gear 400 and the driven gear 500. The three brush bars 300 rotate synchronously, and at the same time, the brush cylinder 600 meshes with the driven gear 500 through the internal teeth of the internal gear ring 620, thus acting as a planetary gear and rotating in the same direction on the mounting plate 100, thereby rotating the three arc-shaped brushes 610. Finally, the cleaning brush is moved towards the rotor axis, so that the rotating brush bar 300 extends into the area between each pair of rotor cores, thereby cleaning the grooves on the surface of the area. At the same time, the three arc-shaped brushes 610 clean the grooves on the outer arc surface of each rotor core to remove the slag or dust adhering to the grooves. The three circumferentially distributed brush rods 300 and the corresponding three arc-shaped brushes 610 are driven to rotate by the motor 200, which can quickly clean the grooves on the inner and outer surfaces of the rotor core. The cleaning efficiency is high and the labor intensity can be effectively reduced.

[0058] In this embodiment, the diameter of the driving gear 400 is larger than the diameter of the driven gear 500, and their transmission ratio is 1:1.5 to 2. That is, through the meshing of the driving gear 400 and the driven gear 500, the brush rod 300 rotates faster, and the cleaning of debris or dust in the groove can be completed more quickly, further improving the cleaning efficiency.

[0059] See Figure 6 As shown, each brush bar 300 has several first bristles 310 and second bristles 320 evenly distributed along its circumferential surface. The first bristles 310 and second bristles 320 are staggered. The first bristles 310 are longer than the second bristles 320. The first bristles 310 have a smaller diameter and are softer, while the second bristles 320 have a larger diameter and are harder. The staggered arrangement of the first bristles 310 and second bristles 320, which are of different lengths and thicknesses, allows them to complement each other. When the brush bar 300 rotates, it can thoroughly clean the grooves on the inner surface between every two rotor cores, resulting in a good cleaning effect.

[0060] Each brush rod 300 is connected to the driven gear 500 at one end by a stud 330, which is threaded into a threaded hole in the middle of the driven gear 500. This means the brush rod 300 is detachably connected to the driven gear 500 via the stud 330 at one end, facilitating replacement and maintenance after the first bristles 310 and second bristles 320 have worn out.

[0061] The mounting plate 100 has three shaft holes evenly distributed around the central through hole; the driven gear 500 has a rotating shaft 510 on the side facing away from the brush rod 300, and the rotating shaft 510 is rotatably connected to the shaft holes.

[0062] To prevent axial movement when the driven gear 500 rotates, see [link / reference] Figure 5 As shown, a slot 511 is provided on the rotating shaft 510. After the driven gear 500 rotates and passes through the shaft hole, it is engaged in the slot 511 by a snap ring (not shown in the figure) and positioned on the mounting plate 100.

[0063] See Figure 3 As shown, the arc-shaped brush 610 has several third bristles 611 and fourth bristles 612 of different thicknesses and lengths on the side facing the brush rod 300, with the third bristles 611 and fourth bristles 612 arranged alternately. Through the third bristles 611 and fourth bristles 612 of different thicknesses and lengths, arranged alternately, the grooves on the outer surface of each rotor core can be thoroughly cleaned when the brush cylinder 600 rotates, resulting in a good cleaning effect.

[0064] See Figure 7 As shown, the inner gear ring 620 has three evenly distributed arc-shaped slots 621 on its side facing away from the motor 200. The arc-shaped brush 610 is inserted into the arc-shaped slots 621. That is, the arc-shaped brush 610 and the arc-shaped slots 621 are inserted into each other. After the bristles on the arc-shaped brush 610 are worn or broken, it is convenient to quickly replace the arc-shaped brush 610 and maintain it. At the same time, the arc-shaped brush 610 can be removed when the groove on the outer surface of the rotor core does not need to be cleaned, so as to observe the operation of the brush rod 300.

[0065] The internal gear ring 620 is rotatably connected to the outer ring of the mounting plate 100 via a bearing, and an annular baffle 630 is connected to the side of the internal gear ring 620 facing the motor 200 (see details). Figure 1 As shown, the annular baffle 630 is rotatably attached to the mounting plate 100 to axially limit the internal gear ring 620. That is, due to the limiting effect of the annular baffle 630, the internal gear ring 620 will not move axially when it rotates.

[0066] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A microelectromechanical rotor cleaning device, characterized by It comprises: a mounting plate in the shape of a disc; a motor fixed on one side of the mounting plate; a brush rod rotatably arranged on the other side of the mounting plate; and a brush cylinder rotatably connected with the mounting plate; wherein three brush rods are evenly distributed around the circumference of the brush rod, which can rotate synchronously under the driving of the motor and can rotate in the same direction with the brush cylinder on the mounting plate; the brush cylinder is provided with three arc-shaped plate brushes sharing a circle, which correspond to the brush rods and are arranged around the brush rods.

2. The micro motor rotor cleaning device according to claim 1, wherein: a driving gear is connected with the output end of the motor after passing through a through hole formed in the middle of the mounting plate; each of the brush rods is connected with a driven gear at one end, which is in mesh with the driving gear, and the driven gear is rotatably connected with the mounting plate; the brush cylinder is rotatably connected with the mounting plate through an inner ring gear, and the three arc-shaped plate brushes are connected with the inner ring gear respectively; the inner teeth of the inner ring gear are in mesh with the driven gear.

3. The micromachine rotor cleaning device according to claim 2, wherein The diameter of the driving gear is larger than that of the driven gear, and the transmission ratio is 1:1.5-2.

4. The micro motor rotor cleaning device according to any one of claims 1-3, wherein: a plurality of first bristles and second bristles are evenly distributed along the circumferential surface of each of the brush rods, and the first bristles and the second bristles are arranged alternately; the first bristles are longer than the second bristles, the first bristles are thinner in diameter and softer in texture, and the second bristles are thicker in diameter and harder in texture.

5. The micro machine rotor cleaning device according to claim 2, wherein each of the brush rods is connected with a threaded stud at one end connected with the driven gear, and the threaded stud is threadedly connected with a threaded hole formed in the middle of the driven gear.

6. The micro motor rotor cleaning device according to claim 2 or 5, wherein: three shaft holes are evenly distributed around the through hole formed in the middle of the mounting plate; a rotating shaft is arranged on the side of the driven gear opposite to the brush rod, and the rotating shaft is rotatably connected with the shaft hole.

7. The micromachine rotor cleaning device according to claim 6, wherein a clamping groove is formed in the rotating shaft, and the driven gear is positioned on the mounting plate by clamping the clamping spring into the clamping groove after rotating through the shaft hole.

8. The micro machine rotor cleaning device according to claim 2 or 3, wherein a plurality of third bristles and fourth bristles with different thicknesses and lengths are arranged on the side of the arc-shaped plate brush facing the brush rod.

9. The micromachine rotor cleaning device according to claim 8, wherein three arc-shaped insertion grooves are evenly distributed around the side of the inner ring gear opposite to the motor, and the arc-shaped plate brush is connected with the arc-shaped insertion groove by insertion.

10. The micro motor rotor cleaning device according to claim 2 or 9, wherein: the inner ring gear is rotatably connected with the outer ring of the mounting plate through a bearing; an annular baffle is connected with the side of the inner ring gear facing the motor, and the annular baffle is rotatably attached to the mounting plate for axially limiting the inner ring gear.

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