Cleaning brush for soldering tin of micro-motor rotor

Abstract

The utility model relates to the technical field of micromotor production and manufacturing, and provides a cleaning brush for soldering tin of a micromotor rotor, which comprises a disc-shaped mounting plate, a motor and a brush cylinder, the motor is fixedly arranged on one side of the mounting plate, and the brush cylinder is provided with an inner gear ring rotationally sleeved on the mounting plate and three arc-shaped plate brushes connected with the inner gear ring; the output end of the motor penetrates through a through hole formed in the middle of the mounting plate and then is connected with a driving gear; the other side of the mounting plate is rotationally connected with a driven gear, one side of the driven gear is meshed with the driving gear, and the other side of the driven gear is meshed with inner teeth of the inner gear ring. The three arc-shaped plate brushes are driven by the motor to rotate, the rotor can be cleaned quickly, cleaning is convenient and simple, and the cleaning efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of micro motor manufacturing technology, specifically to a cleaning brush for micro motor rotor soldering. 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, a coil, and a rotor.

[0004] In the production process of micro motors, the soldering of the rotor is involved. After the micro motor rotor is soldered, it needs to be cleaned to remove impurities that adhered to it during the soldering process. Currently, the cleaning of micro motor rotors after soldering is mostly done manually by shaking them, which has poor cleaning effect, low efficiency, and is prone to damaging the internal components of the micro motor. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a cleaning brush for soldering micro motor rotors, which solves the problem that cleaning and removing impurities from micro motor rotors after soldering by manual shaking is ineffective and can easily damage internal components of the micro motor.

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

[0007] A cleaning brush for soldering micro motor rotors, comprising:

[0008] The mounting plate is disc-shaped.

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

[0010] The brush cylinder has an internal toothed ring rotatably mounted on the mounting plate and three arc-shaped brushes connected to the internal toothed ring;

[0011] The motor output end is connected to a drive gear after passing through a through hole in the middle of the mounting plate; a driven gear is rotatably connected to the other side of the mounting plate, and the driven gear meshes with the drive gear on one side and with the internal teeth of the internal gear ring on the other side.

[0012] Optionally, the three arc-shaped brushes are evenly distributed around the axis of the inner toothed ring, with intervals between them forming a cylindrical structure.

[0013] Optionally, the arc-shaped brush has multiple rows of bristles on its arc-shaped inner surface, and each row of bristles contains several first bristles and second bristles that are spaced apart from each other.

[0014] Optionally, the first bristles are shorter than the second bristles, the first bristles are coarser in diameter and harder in texture, and the second bristles are finer in diameter and softer in texture.

[0015] 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.

[0016] Optionally, three driven gears are evenly distributed around the circumference, and each driven gear has a rotating shaft in the middle of its side surface. The rotating shaft is rotatably connected to a shaft hole opened on the mounting plate.

[0017] 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.

[0018] Optionally, the internal gear ring is rotatably connected to the outer ring of the mounting plate via a bearing, and an annular baffle is connected to the end of the internal gear ring facing the motor. The annular baffle is rotatably attached to the mounting plate and is used to axially limit the internal gear ring.

[0019] Optionally, the annular baffle is a polytetrafluoroethylene (PTFE) plate.

[0020] Optionally, the outer ring of the mounting plate has an annular step;

[0021] The internal gear ring has a countersunk hole at the end facing the motor.

[0022] The bearing is installed between the annular step and the countersunk hole.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] 1. The three curved brushes are driven by an electric motor to rotate, which can quickly clean the rotor. Cleaning is convenient, simple, and highly efficient.

[0025] 2. By using first and second bristles that are spaced apart and have different thicknesses and lengths, the micro motor rotor can be thoroughly cleaned when the brush cylinder rotates, resulting in a good cleaning effect.

[0026] 3. The curved brush is designed to fit into the curved slot, which facilitates quick replacement of the curved brush after the bristles wear or break, making maintenance convenient.

[0027] 4. By synchronously transmitting power through three driven gears, the rotation of the internal gear ring can be kept stable and reliable, thereby improving the efficiency of cleaning work;

[0028] 5. The annular baffle is made of polytetrafluoroethylene (PTFE) plate, which is wear-resistant, has a long service life, and causes less wear on the mounting plate when it rotates to axially limit the internal gear ring. Attached Figure Description

[0029] 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.

[0030] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0031] Figure 2 This is a three-dimensional structural diagram of the present invention from another angle;

[0032] Figure 3 for Figure 2 A magnified schematic diagram of section A in the middle;

[0033] Figure 4 This is a three-dimensional structural diagram of the concealed brush cylinder of this utility model;

[0034] Figure 5 This is a three-dimensional structural diagram of the driven gear;

[0035] Figure 6 This is a schematic diagram of the three-dimensional structure of the internal gear ring;

[0036] Figure 7 This is a schematic diagram of the longitudinal section structure of the internal gear ring. Detailed Implementation

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0044] See Figures 1 to 7 As shown, this utility model provides a cleaning brush for soldering micro motor rotors, comprising:

[0045] Mounting plate 100 is disc-shaped;

[0046] The electric motor 200 is fixedly mounted on one side of the mounting plate 100; and

[0047] The brush cylinder 300 has an internal toothed ring 310 rotatably sleeved on the mounting plate 100 and three arc-shaped brushes 320 connected to the internal toothed ring 620.

[0048] 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; the other side of the mounting plate 100 is rotatably connected to the driven gear 500, one side of the driven gear 500 meshes with the drive gear 400 and the other side meshes with the internal teeth of the internal gear ring 310.

[0049] Specifically, three arc-shaped brushes 320 are evenly distributed around the axis of the internal gear ring 310, forming a cylindrical structure with gaps between them. After the micro-motor rotor is soldered, it is inserted between the three arc-shaped brushes 320. Then, the motor 200 is started, transmitting power to the arc-shaped brushes 320 sequentially through the driving gear 400, driven gear 500, and internal gear ring 310, causing the brushes to rotate and thus cleaning the rotor. The cylindrical structure has gaps (i.e., the gaps between the three arc-shaped brushes 320) to facilitate slag removal and observation. In other words, the three arc-shaped brushes 320 are driven by the motor 200 to rotate, quickly cleaning the rotor. Cleaning is convenient, simple, and highly efficient.

[0050] See Figure 3 As shown, the arc-shaped brush 320 has multiple rows of bristles on its arc-shaped inner surface. Each row of bristles contains several first bristles 321 and second bristles 322 that are spaced apart from each other. The first bristles 321 are shorter than the second bristles 322. The first bristles 321 have a larger diameter and are harder, while the second bristles 322 have a smaller diameter and are softer. Through the spaced-apart, different-thickness, and different-length first and second bristles 321 and 322, the micro-motor rotor can be thoroughly cleaned when the brush cylinder 300 rotates, resulting in a good cleaning effect.

[0051] See Figure 6 As shown, the inner gear ring 310 has three evenly distributed arc-shaped slots 311 on its side facing away from the motor 200. The arc-shaped brush 320 is inserted into the arc-shaped slots 311. That is, the arc-shaped brush 320 and the arc-shaped slots 311 are inserted into each other, which facilitates the quick replacement of the arc-shaped brush 320 after the bristles on the arc-shaped brush 320 are worn or broken, and makes maintenance convenient.

[0052] See Figure 4 As shown, three driven gears 500 are evenly distributed around their circumference. Each driven gear 500 has a rotating shaft 510 located at the center of its side. The rotating shaft 510 is rotatably connected to a shaft hole on the mounting plate 100. When the motor 200 drives the driving gear 400 to rotate, the three driven gears 500 rotate synchronously, simultaneously causing the internal gear ring 310 to rotate in the same direction on the mounting plate 100. That is, by synchronously transmitting power through the three driven gears 500, the rotation of the internal gear ring 310 can be ensured to be stable and reliable, thereby improving the efficiency of the cleaning work.

[0053] 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.

[0054] The internal gear ring 310 is rotatably connected to the outer ring of the mounting plate 100 via a bearing, and an annular baffle 330 is connected to the end of the internal gear ring 310 facing the motor 200 (see details). Figure 1 As shown, the annular baffle 330 rotatably fits onto the mounting plate 100 to axially limit the internal gear ring 310. That is, through the limiting effect of the annular baffle 330, the internal gear ring 310 will not experience axial movement during rotation. In this embodiment, the annular baffle 330 is made of polytetrafluoroethylene (PTFE), which is wear-resistant, has a long service life, and causes minimal wear on the mounting plate 100 during rotation.

[0055] Specifically, see Figure 4 As shown, the outer ring of the mounting plate 100 has an annular step 110; see also Figure 7 As shown, the internal gear ring 310 has a countersunk hole 312 at one end facing the motor 200; the bearing is installed between the annular step 110 and the countersunk hole 312, that is, the inner ring of the bearing is fitted with the annular step 110 and the outer ring is fitted with the countersunk hole 312.

[0056] 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 cleaning brush for soldering micro-motor rotors, characterized in that, include: The mounting plate is disc-shaped. The electric motor is fixedly mounted on one side of the mounting plate; and The brush cylinder has an internal toothed ring rotatably mounted on the mounting plate and three arc-shaped brushes connected to the internal toothed ring; The motor output end is connected to a drive gear after passing through a through hole in the middle of the mounting plate; a driven gear is rotatably connected to the other side of the mounting plate, and the driven gear meshes with the drive gear on one side and with the internal teeth of the internal gear ring on the other side.

2. The cleaning brush for soldering micro-motor rotors according to claim 1, characterized in that, The three curved brushes are evenly distributed around the axis of the inner toothed ring, with gaps between them, forming a cylindrical structure.

3. The cleaning brush for soldering micro-motor rotors according to claim 1 or 2, characterized in that, The arc-shaped brush has multiple rows of bristles on its arc-shaped inner surface, and each row of bristles contains several first bristles and second bristles that are spaced apart from each other.

4. The cleaning brush for soldering micro-motor rotors according to claim 3, characterized in that, The first bristles are shorter than the second bristles. The first bristles are coarser in diameter and harder in texture, while the second bristles are finer in diameter and softer in texture.

5. The cleaning brush for soldering micro-motor rotors according to claim 1 or 4, characterized in that, The internal 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.

6. The cleaning brush for soldering micro-motor rotors according to claim 1, characterized in that, The driven gears are evenly distributed in threes around the circumference, and each driven gear has a rotating shaft in the middle of its side surface. The rotating shaft is rotatably connected to the shaft hole opened on the mounting plate.

7. The cleaning brush for soldering micro-motor rotors according to claim 6, characterized in that, The rotating shaft has a slot, 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.

8. The cleaning brush for soldering micro-motor rotors according to any one of claims 1, 6, and 7, characterized in that, The internal gear ring is rotatably connected to the outer ring of the mounting plate via a bearing, and an annular baffle is connected to the end of the internal gear ring facing the motor. The annular baffle is rotatably attached to the mounting plate and is used to axially limit the internal gear ring.

9. The cleaning brush for soldering micro-motor rotors according to claim 8, characterized in that, The annular baffle is made of polytetrafluoroethylene (PTFE).

10. The cleaning brush for soldering micro-motor rotors according to claim 8, characterized in that: The outer ring of the mounting plate has an annular step. The internal gear ring has a countersunk hole at the end facing the motor. The bearing is installed between the annular step and the countersunk hole.

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