CN218484475U - Speed reducing mechanism, rolling brush assembly and cleaning electric appliance - Google Patents

Speed reducing mechanism, rolling brush assembly and cleaning electric appliance Download PDF

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Publication number
CN218484475U
CN218484475U CN202222775468.0U CN202222775468U CN218484475U CN 218484475 U CN218484475 U CN 218484475U CN 202222775468 U CN202222775468 U CN 202222775468U CN 218484475 U CN218484475 U CN 218484475U
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China
Prior art keywords
gear
ring
output shaft
planet
fixedly connected
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CN202222775468.0U
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Chinese (zh)
Inventor
孙鹏
郑昊
杨宇盟
聂东
初佰慧
郭超
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Midea Group Co Ltd
Jiangsu Midea Cleaning Appliances Co Ltd
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Midea Group Co Ltd
Jiangsu Midea Cleaning Appliances Co Ltd
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Abstract

The utility model discloses a reduction gears, round brush subassembly and clean electrical apparatus. The speed reducing mechanism comprises a motor and a planetary gear mechanism, the motor comprises a body and an output shaft, and the output shaft is rotationally connected with the body; the planetary gear mechanism comprises a sun gear, a planet carrier, a planet gear and a gear ring, and the sun gear is fixed on the output shaft; the planet carrier is fixed on the body; the planet gear is rotationally connected to the planet carrier and is meshed with the sun gear; the motor is used for driving the sun gear to drive the planet gear to rotate so as to drive the gear ring to rotate through the output shaft. Among the above-mentioned reduction gears, the planet carrier is fixed on motor body, and the planet wheel rotation drives the ring gear and rotates, so do not need second main shaft and extra coupling joint reduction gears and driven part (like the round brush), simplified transmission structure, reduce reduction gears's occupation space.

Description

Speed reducing mechanism, rolling brush assembly and cleaning appliance
Technical Field
The utility model relates to a clean electrical apparatus technical field, in particular to reduction gears, a round brush subassembly and a clean electrical apparatus.
Background
Floor washers require a more reliable drive motor and a more direct drive mechanism for the purpose of seeking a zero corner as small as possible, simplifying the drive mechanism, reducing space usage. The multi-purpose traditional planetary reduction gearbox mechanism of drive module built-in round brush technique that appears on the market at present, output shaft pass through the shaft coupling and are connected with the cylinder, and drive mechanism structure is complicated, can make machine overall structure great simultaneously.
SUMMERY OF THE UTILITY MODEL
The utility model discloses embodiment provides a reduction gears, round brush subassembly and a clean electrical apparatus.
The utility model discloses embodiment's reduction gears includes:
an electric machine, the electric machine comprising:
a body; and
an output shaft rotationally connected to the body; and
a planetary gear mechanism, the planetary gear mechanism comprising:
a sun gear fixed to the output shaft;
the planet carrier is fixed on the body;
the planet gear is rotationally connected to the planet carrier and is meshed with the sun gear; and
the motor is used for driving the sun gear to drive the planet gear to rotate through the output shaft so as to drive the gear ring to rotate.
Among the above-mentioned reduction gears, the planet carrier is fixed on motor body, and the planet wheel rotation drives the ring gear and rotates, so do not need second main shaft and extra coupling joint reduction gears and driven part (like the round brush), simplified transmission structure, reduce reduction gears's occupation space.
In some embodiments, the speed reducing mechanism further comprises:
the base is fixed one side of body, the output shaft wears to establish the base, the planet carrier is fixed on the base.
In some embodiments, the speed reducing mechanism includes a first bearing, the inner circumferential surface of the ring gear is provided with a toothed portion, the toothed portion is engaged with the planet gear, the first bearing includes a first inner ring and a first outer ring, the first inner ring is fixedly connected with the base, and the first outer ring is fixedly connected with the inner circumferential surface of the ring gear.
In some embodiments, the speed reduction mechanism further includes an upper cover and a second bearing, the second bearing includes a second inner ring and a second outer ring, the upper cover is connected to the carrier, the second inner ring is fixedly connected to the upper cover, the second outer ring is fixedly connected to an inner circumferential surface of the ring gear, and the first bearing and the second bearing are respectively disposed on both sides of the sun gear in an axial direction of the output end.
In some embodiments, the planetary gear mechanism comprises a plurality of the planet wheels, which are evenly distributed along the inner circumference of the ring gear.
In some embodiments, the speed reducing mechanism further includes two retaining rings, the two retaining rings are spaced apart in the axial direction of the output shaft and are fixedly connected to the planet carrier, and the planet wheel is located between the two retaining rings.
In some embodiments, the planet carrier includes a mounting portion and a supporting column, the mounting portion connects the body and the supporting column, the output shaft penetrates through the mounting portion, and the planet wheel and the stopper are sleeved on the supporting column.
In some embodiments, the ring gear includes a toothed portion that is distributed at an intermediate position on an inner peripheral surface of the ring gear, in the axial direction of the output shaft.
In some embodiments, the outer peripheral surface of the ring gear is provided with a coupling structure extending in the axial direction of the output shaft.
The utility model discloses embodiment's a round brush subassembly includes:
rolling and brushing; and
in the reduction mechanism of any one of the above embodiments, the ring gear is fixedly connected to the roller brush.
The utility model discloses clean electrical apparatus of embodiment include above-mentioned embodiment the round brush subassembly.
Among the above-mentioned round brush subassembly and the clean electrical apparatus, the planet carrier is fixed on motor body, and the planet wheel rotation drives the ring gear and rotates, so does not need second main shaft and extra coupling joint reduction gears and driven part (like the round brush), has simplified transmission structure, reduces reduction gears's occupation space.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is an exploded schematic view of a reduction mechanism according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a reduction mechanism according to an embodiment of the present invention;
fig. 3 is another schematic structural view of the speed reducing mechanism according to the embodiment of the present invention;
FIG. 4 isbase:Sub>A sectional view of the speed reducing mechanism of FIG. 3 taken along line A-A;
FIG. 5 is an enlarged view of a portion a of FIG. 4;
fig. 6 is a schematic structural diagram of a base according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a first bearing according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a retainer ring according to an embodiment of the present invention;
fig. 9 is a schematic structural view of a carrier according to an embodiment of the present invention;
fig. 10 is a schematic structural view of the upper cover according to the embodiment of the present invention;
fig. 11 is a schematic structural view of a ring gear according to an embodiment of the present invention;
fig. 12 is another schematic structural view of the ring gear according to the embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to 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" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The disclosure herein provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of the specific examples are described herein. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 1 and 2, a reduction mechanism 100 according to an embodiment of the present invention includes a motor 10 and a planetary gear mechanism 12.
The motor 10 includes a body 11 and an output shaft 13, the output shaft 13 being rotatably connected to the body 11. The planetary gear mechanism 12 comprises a sun gear 14, a planet carrier 18, planet gears 16 and a gear ring 20, the sun gear 14 is fixed on the output shaft 13, the planet carrier 18 is fixed on the body 11, the planet gears 16 are rotatably connected on the planet carrier 18 and meshed with the sun gear 14, the gear ring 20 is meshed with the planet gears 16, and the motor 10 is used for driving the sun gear 14 to drive the planet gears 16 to rotate through the output shaft 13 so as to drive the gear ring 20 to rotate.
In the speed reducing mechanism 100, the planet carrier 18 is fixed on the motor 10 body 11, and the planet wheel 16 rotates to drive the gear ring 20 to rotate, so that a second main shaft and an additional coupling are not needed to connect the speed reducing mechanism 100 and a driven part (such as a rolling brush), the transmission structure is simplified, and the occupied space of the speed reducing mechanism 100 is reduced.
Specifically, in the speed reducing mechanism 100, the output shaft 13 of the motor 10 is reduced through the planetary gear mechanism 12, the sun gear 14 of the planetary gear mechanism 12 is fixed on the output shaft 13 of the motor 10, the planetary gears 16 are mounted on the planet carrier 18, the planetary gears 16 are meshed with the sun gear 14, because the planet carrier 18 is fixed with the body 11 of the motor 10, the output shaft 13 of the motor 10 drives the sun gear 14 to rotate, the sun gear 14 drives the planetary gears 16 to rotate, the ring gear 20 is meshed with the planetary gears 16, the planetary gears 16 rotate to drive the ring gear 20 to rotate, the sun gear 14, the planetary gears 16 and the ring gear 20 form a transmission structure of the planetary gear mechanism 12, wherein the rotation direction of the ring gear 20 is opposite to the rotation direction of the motor 10, and the speed reducing ratio i of the speed reducing mechanism 100 is calculated according to the following formula:
i = number of teeth of ring gear 20/number of teeth of sun gear 14.
In some embodiments, referring to fig. 1 and 4, the speed reducing mechanism 100 further includes a base 22 fixed on one side of the body 11, the output shaft 13 penetrates through the base 22, and the planet carrier 18 is fixed on the base 22. In this manner, the base 22 can fix the planetary gear mechanism 12 in cooperation with the ring gear 20.
Specifically, at motor 10 one side installation base 22, motor 10's output shaft 13 wears to establish base 22 installation sun gear 14, and planet carrier 18 is fixed on base 22, and planet wheel 16 rotates to be connected on planet carrier 18, and sun gear 14 meshes with planet wheel 16, and ring gear 20 cover is established on base 22, meshes with planet wheel 16, so makes the gear drive structure more firm. In the illustrated embodiment, mounting holes are formed in corresponding positions of the carrier 18 and the base 22, and the carrier 18 and the base 22 are connected by screws, but in other embodiments, the carrier 18 and the base 22 may be connected by other connection methods.
In some embodiments, the speed reducing mechanism 100 includes a first bearing 24, the inner circumferential surface 25 of the ring gear 20 is provided with teeth 26, the teeth 26 are engaged with the planet gears 16, the first bearing 24 includes a first inner ring 28 and a first outer ring 30, the first inner ring 28 is fixedly connected with the base 22, and the first outer ring 30 is fixedly connected with the inner circumferential surface 25 of the ring gear 20. In this way, the rotation of the ring gear 20 can be made more stable and smooth.
Specifically, referring to fig. 4 to 6, the base 22 includes a bottom plate 21 and a protrusion 23, a joint between the bottom plate 21 and the protrusion 23 has a circle of step surfaces 27 arranged along a circumferential direction of the protrusion 23, the first bearing 24 is in interference fit with the protrusion 23, the step surfaces 27 serve as positioning surfaces for mounting the first bearing 24, and the step surfaces 27 abut against a bottom surface of a first inner ring 28 of the first bearing 24 during mounting so that a bottom surface of a first outer ring 30 of the first bearing 24 does not contact with the bottom plate 21. The first inner ring 28 of the first bearing 24 is fixedly connected with the convex portion 23, the first outer ring 30 is fixedly connected with the inner circumferential surface 25 of the ring gear 20, the planetary gear mechanism 12 is more stable by installing the first bearing 24, meanwhile, the first bearing 24 is installed on one side of the ring gear 20 close to the base 22, and the other side of the ring gear 20 is made into a cantilever structure, so that the installation is convenient, and the cost is reduced.
In some embodiments, referring to fig. 1 and 4, the speed reducing mechanism 100 further includes an upper cover 32 and a second bearing 34, the second bearing 34 includes a second inner ring 36 and a second outer ring 38, the upper cover 32 is connected to the planet carrier 18, the second inner ring 36 is fixedly connected to the upper cover 32, the second outer ring 38 is fixedly connected to the inner circumferential surface 25 of the ring gear 20, and the first bearing 24 and the second bearing 34 are respectively disposed on two sides of the sun gear 14 along the axial direction of the output end. Therefore, the two ends of the gear ring 20 are supported by the bearings, so that the jumping is easier to control, and the noise is lower.
Specifically, the upper cover 32 is connected with the planet carrier 18 as an axial constraint of the planetary gear mechanism 12, the second bearing 34 is installed on one side of the ring gear 20 close to the upper cover 32, the second inner ring 36 of the second bearing 34 is fixedly connected with the upper cover 32, and the second outer ring 38 is fixedly connected with the inner circumferential surface 25 of the ring gear 20, so that the first bearing 24 and the second bearing 34 are respectively installed on two sides of the ring gear 20, the meshing part of the planet gears 16 and the ring gear 20 is located between the two bearings, and the two ends of the ring gear 20 are supported by the bearings, so that the jumping is easier to control, and the speed reducing mechanism 100 operates more stably and has lower noise. In the illustrated embodiment, mounting holes are formed in corresponding positions of the upper cover 32 and the carrier 18, and the upper cover 32 and the carrier 18 are connected by screws, but in other embodiments, the upper cover 32 and the carrier 18 may be connected by other connection means. As shown in fig. 2 and 3, the axial direction is the y-axis direction in the drawing, wherein the y-axis direction is the negative direction toward the motor 10 side and the positive direction toward the upper cover 32 side.
In some embodiments, the planetary gear mechanism 12 includes a plurality of planet gears 16, and the plurality of planet gears 16 are evenly distributed along an inner circumference of the ring gear 20. Thus, the plurality of planet wheels 16 can bear load together, so that the operation is more stable.
Specifically, the planetary gear mechanism 12 includes a plurality of planetary gears 16, the plurality of planetary gears 16 are uniformly distributed along the inner circumference of the ring gear 20, and the load distribution among the plurality of planetary gears 16 is uniform, that is, the magnitude of the meshing acting force transmitted to each planetary gear 16 by the sun gear 14 is equal, which is beneficial to improving the transmission efficiency of the planetary gear mechanism 12.
In some embodiments, the speed reducing mechanism 100 further includes two retaining rings 40, the two retaining rings 40 are spaced apart along the axial direction of the output shaft 13 and are fixedly connected to the planet carrier 18, and the planet wheel 16 is located between the two retaining rings 40. In this way, a transmission structure that protects the planetary gear mechanism 12 from the closed environment can be formed.
Specifically, two retaining rings 40 are respectively installed on two axial sides of the transmission structure, the two retaining rings 40 and the inner circumferential surface 25 of the ring gear 20 form a relatively closed environment, the transmission structure rotates between the two retaining rings 40 to prevent foreign matters from entering, and meanwhile, the retaining rings 40 are fixedly connected with the planet carrier 18 on two sides of the transmission structure to play a reinforcing role, so that the planetary gear mechanism 12 is more stable.
In some embodiments, referring to fig. 9, the planet carrier 18 includes a mounting portion 17 and a supporting column 19, the mounting portion 17 connects the body 11 and the supporting column 19, the output shaft 13 penetrates through the mounting portion 17, and the planet wheel 16 and the retaining ring 40 are sleeved on the supporting column 19. Thus, the structure of the planetary gear mechanism 12 is more compact and stable.
Specifically, the planet carrier 18 comprises a support column 19 and a mounting portion 17, the support column 19 is used for mounting the planet wheel 16 and a retainer ring 40, and a through hole 41 is formed in the retainer ring 40 and used for penetrating through the support column 19. The mount 17 is used to fix the carrier 18 and the motor 10 body 11. In the illustrated embodiment, the support column 19 is fixedly connected to the mounting portion 17, the planetary gear 16 is rotatably connected to the support column 19, and is meshed with the sun gear 14, the planetary gear 16 is driven by the sun gear 14 to rotate, and the planetary gear 16 is fixed as a whole.
In other embodiments, the supporting column 19 may be rotatably connected to the mounting portion 17, the planet wheels 16 are fixedly connected to the supporting column 19, when the sun wheel 14 rotates, the planet wheels 16 and the supporting column 19 rotate together to drive the ring gear 20 to rotate, and the mounting portion 17 is fixed.
In the illustrated embodiment, first mounting holes 42 are formed in the mounting portion 17 and the bottom plate 21 for fixedly connecting the carrier 18 and the base 22 by screws, and second mounting holes 44 are formed in the top of the supporting posts 19 and the upper cover 32 for fixedly connecting the carrier 18 and the upper cover 32 by screws.
In some embodiments, referring to fig. 11, the ring gear 20 includes a toothed portion 26, and the toothed portion 26 is distributed at an intermediate position of the inner circumferential surface 25 of the ring gear 20 in the axial direction of the output shaft 13. In this way, the planetary gear mechanism 12 can be further stabilized.
Specifically, the tooth 26 of the ring gear 20 is disposed in the middle of the inner circumferential surface 25 of the ring gear 20, the outer rings of the first bearing 24 and the second bearing 34 are connected to both sides of the inner circumferential surface 25 of the ring gear 20, when the ring gear 20 is sleeved on the planet carrier 18, the sun gear 14 is engaged with the planet gear 16, the planet gear 16 is engaged with the ring gear 20 and is located in the middle of the inside of the ring gear 20, the retainer rings 40 are respectively mounted to both sides of the ring gear 20, and the first bearing 24 and the second bearing 34 can also be mounted, so that the planetary gear mechanism 12 is stable, and the operation of the speed reducing mechanism 100 is more stable.
In some embodiments, the outer peripheral surface 45 of the ring gear 20 is provided with a coupling structure 46 extending in the axial direction of the output shaft. In this way, the ring gear 20 can be directly connected to the driven mechanism (e.g., a roller brush) without an additional coupling.
Specifically, the reduction mechanism 100 is connected to a driven member (e.g., a rolling brush) by adding a coupling structure 46 extending in the axial direction of the output shaft to the outer surface of the ring gear 20, so that an additional coupling or the like is omitted, and the driven member is directly driven by the ring gear 20, thereby further simplifying the structure of the reduction mechanism 100. In one embodiment, the coupling mechanism 46 is shown in fig. 12, and in other embodiments, the coupling mechanism 46 may be configured as desired or otherwise according to the configuration of the driven member.
In summary, the speed reducing mechanism 100 is composed of the motor 10 and the planetary gear mechanism 12, wherein the planetary gear mechanism 12 includes a sun gear 14, a planetary gear 16 and a ring gear 20, the sun gear 14 is rotatably connected to an output shaft 13 of the motor 10, the output shaft 13 drives the sun gear 14 to rotate, the sun gear 14 transmits motion to the planetary gear 16, the planetary gear 16 is rotatably connected to a planet carrier 18, the planet carrier 18 is fixed, and the planetary gear 16 rotates and transmits motion to the ring gear 20.
In other embodiments, if the reduction ratio is more required, a multi-stage NGW type planetary gear reduction mechanism may be adopted, the NGW type planetary gear train in the illustrated embodiment is used as a second-stage gear train, a NGW type planetary gear train is added between the motor 10 and the second-stage gear train as a first-stage gear train, a first-stage planet carrier in the first-stage gear train is fixedly connected with a second-stage sun gear, the first-stage planet gear revolves to drive the second-stage sun gear, and the ring gear 20 is meshed with the second-stage planet gear and rotates along with the second-stage planet gear.
The utility model discloses a round brush subassembly of embodiment includes round brush and the reduction gears 100 of any one above-mentioned embodiment, ring gear 20 fixed connection round brush.
According to the rolling brush, the coupling structure is additionally arranged on the outer peripheral surface of the gear ring 20 and is matched with the inner peripheral surface of the rolling brush to fix the gear ring 20 and the rolling brush, an additional coupling is not needed, and the rolling brush is simpler in structure. When the speed reducing mechanism 100 works, the motor 10 drives the sun gear 14 to rotate, motion is transmitted to the planet gear 16, the planet carrier 18 is fixed, the planet gear 16 transmits motion to the gear ring 20, and the gear ring 20 is connected with the rolling brush through a coupling structure on the outer side, so that rolling brush driving can be directly completed.
In other embodiments, the roller brush comprises a roller and a cleaning member arranged on the outer surface of the roller, the length of the gear ring 20 is lengthened, so that the motor 10 is integrally arranged in the gear ring 20, the gear ring 20 directly serves as the roller part of the roller brush, and the cleaning member is arranged on the outer surface of the gear ring 20, so that the structure of the roller brush is further simplified.
The utility model discloses embodiment's a clean electrical apparatus includes above-mentioned embodiment's round brush subassembly.
Above-mentioned cleaning electrical apparatus places reduction gears 100 in the round brush, realizes the zero corner, improves reduction gears 100's transmission mode simultaneously, makes the transmission more directly reliable to simplify reduction gears 100's structure, make cleaning electrical apparatus's overall structure reduce, reduce cleaning electrical apparatus's occupation space.
Cleaning appliances include, but are not limited to, floor washers, vacuum cleaners, sweeping robots, or other appliances with cleaning functionality.
In the description of the present specification, reference to the description of "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (11)

1. A speed reducing mechanism, comprising:
an electric machine, the electric machine comprising:
a body; and
an output shaft rotationally connected to the body; and
a planetary gear mechanism, the planetary gear mechanism comprising:
a sun gear fixed to the output shaft;
the planet carrier is fixed on the body;
the planet gear is rotationally connected to the planet carrier and is meshed with the sun gear; and
the motor is used for driving the sun gear to drive the planet gear to rotate through the output shaft so as to drive the gear ring to rotate.
2. The reduction mechanism according to claim 1, further comprising:
the base is fixed one side of body, the output shaft wears to establish the base, the planet carrier is fixed on the base.
3. The reduction mechanism according to claim 2, characterized in that the reduction mechanism includes a first bearing, a toothed portion is provided on an inner peripheral surface of the ring gear, the toothed portion is engaged with the planetary gear, the first bearing includes a first inner ring and a first outer ring, the first inner ring is fixedly connected to the base, and the first outer ring is fixedly connected to an inner peripheral surface of the ring gear.
4. The reduction mechanism according to claim 3, further comprising a second bearing including a second inner ring and a second outer ring, wherein the second inner ring is fixedly connected to the carrier, the second inner ring is fixedly connected to the upper cover, the second outer ring is fixedly connected to an inner peripheral surface of the ring gear, and the first bearing and the second bearing are disposed on both sides of the sun gear in an axial direction of the output end.
5. The reduction mechanism according to claim 1, wherein the planetary gear mechanism includes a plurality of the planetary wheels that are evenly distributed along an inner circumferential direction of the ring gear.
6. The reduction mechanism according to claim 1, further comprising two retainer rings that are spaced apart in the axial direction of the output shaft and fixedly connected to the carrier, and the planetary gear is located between the two retainer rings.
7. The reduction mechanism according to claim 6, wherein the carrier includes a mounting portion and a support column, the mounting portion connects the body and the support column, the output shaft passes through the mounting portion, and the planet wheel and the stopper ring are sleeved on the support column.
8. The reduction mechanism according to claim 1, wherein the ring gear includes teeth portions that are distributed at intermediate positions on an inner peripheral surface of the ring gear in an axial direction of the output shaft.
9. The reduction mechanism according to claim 1, wherein an outer peripheral surface of the ring gear is provided with a coupling structure extending in an axial direction of the output shaft.
10. A round brush assembly, comprising:
rolling and brushing; and
the speed reducing mechanism of any one of claims 1 to 9, wherein the ring gear is fixedly connected to the roll brush.
11. A cleaning appliance comprising the roller brush assembly of claim 10.
CN202222775468.0U 2022-10-21 2022-10-21 Speed reducing mechanism, rolling brush assembly and cleaning electric appliance Active CN218484475U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222775468.0U CN218484475U (en) 2022-10-21 2022-10-21 Speed reducing mechanism, rolling brush assembly and cleaning electric appliance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222775468.0U CN218484475U (en) 2022-10-21 2022-10-21 Speed reducing mechanism, rolling brush assembly and cleaning electric appliance

Publications (1)

Publication Number Publication Date
CN218484475U true CN218484475U (en) 2023-02-17

Family

ID=85195151

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222775468.0U Active CN218484475U (en) 2022-10-21 2022-10-21 Speed reducing mechanism, rolling brush assembly and cleaning electric appliance

Country Status (1)

Country Link
CN (1) CN218484475U (en)

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