CN117941984A - 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
CN117941984A
CN117941984A CN202211291127.4A CN202211291127A CN117941984A CN 117941984 A CN117941984 A CN 117941984A CN 202211291127 A CN202211291127 A CN 202211291127A CN 117941984 A CN117941984 A CN 117941984A
Authority
CN
China
Prior art keywords
gear
ring
output shaft
planet
reduction mechanism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211291127.4A
Other languages
Chinese (zh)
Inventor
孙鹏
郑昊
杨宇盟
聂东
初佰慧
郭超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Jiangsu Midea Cleaning Appliances Co Ltd
Original Assignee
Midea Group Co Ltd
Jiangsu Midea Cleaning Appliances Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, Jiangsu Midea Cleaning Appliances Co Ltd filed Critical Midea Group Co Ltd
Priority to CN202211291127.4A priority Critical patent/CN117941984A/en
Publication of CN117941984A publication Critical patent/CN117941984A/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/28—Floor-scrubbing machines, motor-driven
    • A47L11/282—Floor-scrubbing machines, motor-driven having rotary tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4041—Roll shaped surface treating tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4063—Driving means; Transmission means therefor
    • A47L11/4069—Driving or transmission means for the cleaning tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation

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  • Retarders (AREA)

Abstract

The invention discloses a speed reducing mechanism, a rolling brush assembly and a cleaning electric appliance. 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 wheel and a gear ring, and the sun gear is fixed on the output shaft; the planet carrier is fixed on the body; the planet wheel is rotationally connected to the planet carrier and meshed with the sun wheel; the gear ring is meshed with the planet gears, and the motor is used for driving the sun gear to drive the planet gears to rotate through the output shaft so as to drive the gear ring to rotate. In the speed reducing mechanism, the planet carrier is fixed on the motor body, and the planet wheel rotates to drive the gear ring to rotate, so that a second main shaft and an additional coupling are not needed to be connected with the speed reducing mechanism and a driven part (such as a rolling brush), the transmission structure is simplified, and the occupied space of the speed reducing mechanism is reduced.

Description

Speed reducing mechanism, rolling brush assembly and cleaning electric appliance
Technical Field
The invention relates to the technical field of cleaning appliances, in particular to a speed reducing mechanism, a rolling brush assembly and a cleaning appliance.
Background
The floor scrubber requires a more reliable drive motor and a more direct drive mechanism in order to pursue as small zero corners as possible, to simplify the drive mechanism, to reduce space occupation. At present, the drive module built-in rolling brush technology appearing on the market is multi-purpose and traditional planetary reduction box mechanism, an output shaft are connected with a roller through a coupler, and the transmission mechanism is complex in structure and can make the whole structure of the machine larger.
Disclosure of Invention
The embodiment of the invention provides a speed reducing mechanism, a rolling brush assembly and a cleaning electric appliance.
The speed reducing mechanism according to an embodiment of the present invention includes:
a motor, the motor comprising:
A body; and
The output shaft is rotationally connected with the body; and
A planetary gear mechanism, the planetary gear mechanism comprising:
The sun gear is fixed on the output shaft;
the planet carrier is fixed on the body;
the planet wheel is rotationally connected to the planet carrier and meshed with the sun wheel; and
And the motor is used for driving the sun wheel to drive the planetary wheel to rotate through the output shaft so as to drive the gear ring to rotate.
In the speed reducing mechanism, the planet carrier is fixed on the motor body, and the planet wheel rotates to drive the gear ring to rotate, so that a second main shaft and an additional coupling are not needed to be connected with the speed reducing mechanism and a driven part (such as a rolling brush), the transmission structure is simplified, and the occupied space of the speed reducing mechanism is reduced.
In certain embodiments, the reduction mechanism further comprises:
The base is fixed on one side of the body, the output shaft penetrates through the base, and the planet carrier is fixed on the base.
In some embodiments, the speed reducing mechanism includes a first bearing, a tooth portion is disposed on an inner peripheral surface of the gear ring, the tooth portion is meshed 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 peripheral surface of the gear ring.
In some embodiments, the speed reducing 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 with the planet carrier, the second inner ring is fixedly connected with the upper cover, the second outer ring is fixedly connected with an inner peripheral surface of the gear ring, and the first bearing and the second bearing are separated on two sides of the sun gear along an axial direction of the output end.
In certain embodiments, the planetary gear mechanism comprises a plurality of the planetary gears, the plurality of planetary gears being evenly distributed along an inner circumference of the ring gear.
In some embodiments, the reduction mechanism further comprises two collars spaced axially along the output shaft and fixedly connected to the planet carrier, the planet being located between the two collars.
In some embodiments, the planet carrier comprises a mounting part and a support column, the mounting part is connected with the body and the support column, the output shaft penetrates through the mounting part, and the planet wheel and the retainer ring are sleeved on the support column.
In some embodiments, the ring gear includes a tooth portion, which is disposed at an intermediate position of an inner peripheral surface of the ring gear, without an axial direction of the output shaft.
In some embodiments, the outer circumferential surface of the ring gear is provided with a coupling structure extending in the axial direction of the output shaft.
A rolling brush assembly according to an embodiment of the present invention includes:
A rolling brush; and
The reduction mechanism of any one of the above embodiments, wherein the ring gear is fixedly connected to the rolling brush.
The cleaning appliance comprises the rolling brush assembly.
In the rolling brush assembly and the cleaning electric appliance, the planet carrier is fixed on the motor body, and the planet wheel rotates to drive the gear ring to rotate, so that a second main shaft and an additional coupling are not needed to be connected with a speed reducing mechanism and a driven part (such as a rolling brush), the transmission structure is simplified, and the occupied space of the speed reducing mechanism is reduced.
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 foregoing 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, in which:
Fig. 1 is an exploded schematic view of a reduction mechanism of 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 structural schematic diagram of a reduction mechanism according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of the reduction mechanism of FIG. 3 taken along line A-A;
FIG. 5 is an enlarged view of portion a of FIG. 4;
FIG. 6 is a schematic view of the structure of a base according to an embodiment of the present invention;
FIG. 7 is a schematic view of the structure of a first bearing according to an embodiment of the present invention;
FIG. 8 is a schematic view of the structure of a retainer ring according to an embodiment of the present invention;
FIG. 9 is a schematic structural view of a planet carrier according to an embodiment of the present invention;
fig. 10 is a schematic structural view of an upper cover according to an embodiment of the present invention;
Fig. 11 is a schematic structural view of a ring gear of an embodiment of the invention;
Fig. 12 is another schematic structural view of the ring gear of the embodiment of the invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.
In the description of the present invention, 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. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The disclosure herein provides many different embodiments or examples for implementing different structures of the invention. To simplify the present disclosure, components and arrangements of specific examples are described herein. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
Referring to fig. 1 and 2, a reduction mechanism 100 of 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 to 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 above-mentioned reduction mechanism 100, the planet carrier 18 is fixed on the body 11 of the motor 10, and the planet gears 16 rotate to drive the gear ring 20 to rotate, so that the second spindle and the additional coupling are not required to connect the reduction mechanism 100 and the driven component (such as a rolling brush), simplifying the transmission structure and reducing the occupied space of the reduction mechanism 100.
Specifically, in the above-mentioned reduction mechanism 100, the output shaft 13 of the motor 10 is reduced by 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 planet gear 16 is mounted on the planet carrier 18, the planet gear 16 is meshed with the sun gear 14, since 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 planet gear 16 to rotate, the ring gear 20 is meshed with the planet gear 16, the planet gear 16 rotates to drive the ring gear 20 to rotate, the sun gear 14, the planet gear 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 reduction ratio i of the reduction mechanism 100 is calculated as follows:
i=number of teeth of the ring gear 20/number of teeth of the 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 the base 22, and the planet carrier 18 is fixed on the base 22. In this manner, the base 22 is able to cooperate with the ring gear 20 to fix the planetary gear mechanism 12.
Specifically, a base 22 is installed on one side of the motor 10, the output shaft 13 of the motor 10 is penetrated through the base 22 to install a sun gear 14, the planet carrier 18 is fixed on the base 22, the planet gears 16 are rotationally connected on the planet carrier 18, the sun gear 14 is meshed with the planet gears 16, the gear ring 20 is sleeved on the base 22 and meshed with the planet gears 16, and therefore the gear transmission structure is more stable. In the illustrated embodiment, mounting holes are formed at corresponding positions on the planet carrier 18 and the base 22, the planet carrier 18 and the base 22 are connected by screws, and in other embodiments, the planet carrier 18 and the base 22 may be connected by other connection methods.
In some embodiments, the reduction mechanism 100 includes a first bearing 24, the inner peripheral surface 25 of the ring gear 20 is provided with a tooth portion 26, the tooth portion 26 is meshed 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 peripheral 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 protruding portion 23, a connection portion between the bottom plate 21 and the protruding portion 23 has a circle of step surface 27 disposed along a circumferential direction of the protruding portion 23, the first bearing 24 is in interference fit with the protruding portion 23, the step surface 27 is used as a positioning surface for mounting the first bearing 24, and the step surface 27 abuts against a bottom surface of the first inner ring 28 of the first bearing 24 when mounting so that a bottom surface of the first outer ring 30 of the first bearing 24 is not in contact with the bottom plate 21. The first inner ring 28 of the first bearing 24 is fixedly connected with the convex part 23, the first outer ring 30 is fixedly connected with the inner peripheral surface 25 of the gear ring 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, close to the base 22, of the gear ring 20, and the other side of the gear ring 20 is made into a cantilever structure, so that the installation is convenient, and the cost is reduced.
In certain embodiments, referring to fig. 1 and 4, the reduction 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 peripheral surface 25 of the ring gear 20, and the first bearing 24 and the second bearing 34 are separated on both sides of the sun gear 14 along the axial direction of the output end. Thus, the gear ring 20 is supported by bearings at both ends, so that the runout is easier to control, and the noise is smaller.
Specifically, the upper cover 32 is connected with the planet carrier 18, as the axial constraint of the planetary gear mechanism 12, a second bearing 34 is installed on one side of the gear ring 20, which is close to the upper cover 32, a second inner ring 36 of the second bearing 34 is fixedly connected with the upper cover 32, and a second outer ring 38 is fixedly connected with the inner circumferential surface 25 of the gear ring 20, so that the first bearing 24 and the second bearing 34 are respectively installed on two sides of the gear ring 20, the meshing part of the planet wheel 16 and the gear ring 20 is located between the two bearings, and the two ends of the gear ring 20 are supported by bearings, so that runout 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 at corresponding positions on the upper cover 32 and the planet carrier 18, and the upper cover 32 and the planet carrier 18 are connected by screws, and in other embodiments, the upper cover 32 and the planet carrier 18 may be connected by other connection methods. As shown in fig. 2 and 3, the axial direction is the y-axis direction in the drawing, wherein the side facing the motor 10 is the y-axis negative direction, and the side facing the upper cover 32 is the y-axis positive direction.
In certain embodiments, the planetary gear mechanism 12 includes a plurality of planet gears 16, the plurality of planet gears 16 being evenly distributed along the inner circumference of the ring gear 20. In this way, the plurality of planets 16 can share the load, making the operation smoother.
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 among the plurality of planetary gears 16 is uniformly distributed, that is, the meshing forces transmitted to the planetary gears 16 by the sun gear 14 are equal in magnitude, which is beneficial to improving the transmission efficiency of the planetary gear mechanism 12.
In some embodiments, the reduction mechanism 100 further includes two retaining rings 40, the two retaining rings 40 being spaced axially along the output shaft 13 and fixedly connected to the planet carrier 18, the planet gears 16 being located between the two retaining rings 40. In this way, a transmission structure that protects the planetary gear mechanism 12 from the enclosed environment can be formed.
Specifically, the two retaining rings 40 are respectively installed at two axial sides of the transmission structure, the two retaining rings 40 and the inner peripheral surface 25 of the gear ring 20 form a relatively closed environment, the transmission structure rotates therebetween to prevent foreign matters from entering, and meanwhile, the retaining rings 40 are fixedly connected with the planet carrier 18 at 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 support column 19, the mounting portion 17 connects the body 11 and the support column 19, the output shaft 13 passes through the mounting portion 17, and the planet gears 16 and the retainer ring 40 are sleeved on the support column 19. In this way, the structure of the planetary gear mechanism 12 is made more compact and stable.
Specifically, the planet carrier 18 includes 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 for penetrating the support column 19. The mounting portion 17 is for fixing 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 meshed with the sun gear 14, the planetary gear 16 is driven to rotate by the sun gear 14, and the planetary gear 16 is integrally fixed.
In other embodiments, the support column 19 is rotatably connected to the mounting portion 17, the planet gears 16 are fixedly connected to the support column 19, and when the sun gear 14 rotates, the planet gears 16 and the support column 19 rotate together to drive the gear ring 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 planet carrier 18 to the base 22 by screws, and second mounting holes 44 are formed in the top of the support column 19 and the upper cover 32 for fixedly connecting the planet carrier 18 to the upper cover 32 by screws.
In some embodiments, referring to fig. 11, the ring gear 20 includes teeth 26, and the teeth 26 are distributed at intermediate positions of the inner peripheral 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 made more stable.
Specifically, the teeth 26 of the ring gear 20 are disposed at a middle position of the inner peripheral surface 25 of the ring gear 20, two sides of the inner peripheral surface 25 of the ring gear 20 are connected with the outer rings of the first bearing 24 and the second bearing 34, when the ring gear 20 is sleeved on the planet carrier 18, the sun gear 14 is meshed with the planet gears 16, the planet gears 16 are meshed with the ring gear 20 and are located at a middle part inside the ring gear 20, two sides of the ring gear 20 are respectively provided with a retainer ring 40, and the first bearing 24 and the second bearing 34 can be further installed, so that the planetary gear mechanism 12 is stable, and the speed reducing mechanism 100 is more stable in operation.
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 a driven mechanism (e.g., a roller brush) without an additional coupling.
Specifically, the reduction mechanism 100 is connected to a driven member (such as 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, and the driven member is directly driven by the ring gear 20 without additional coupling members, 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 provided as desired or according to the configuration of the driven member.
In summary, the reduction mechanism 100 is composed of the motor 10 and the planetary gear mechanism 12, where the planetary gear mechanism 12 includes the sun gear 14, the planet gear 16 and the ring gear 20, the sun gear 14 is rotationally connected with the 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 planet gear 16, the planet gear 16 is rotationally connected to the planet carrier 18, the planet carrier 18 is fixed, the planet gear 16 rotates and transmits motion to the ring gear 20, and the reduction mechanism 100 belongs to one of NGW type planetary gear reduction mechanisms, and has the advantages of compact structure, high transmission power, high bearing capacity, high transmission efficiency and the like.
In other embodiments, if the reduction ratio is higher, a multi-stage NGW planetary gear reduction mechanism may be used, where the NGW planetary gear train is used as a second stage gear train, a one-stage NGW planetary gear train is added between the motor 10 and the second stage gear train as a first stage gear train, the first stage planet carrier in the first stage gear train is fixedly connected with a second stage sun gear, the first stage planetary gear revolves to drive the second stage sun gear, and the ring gear 20 meshes with and rotates with the second stage planetary gear.
A rolling brush assembly according to an embodiment of the present invention includes a rolling brush and the reduction mechanism 100 according to any of the above embodiments, and the ring gear 20 is fixedly connected to the rolling brush.
The rolling brush is provided with the coupling structure on the outer peripheral surface of the gear ring 20, is matched with the inner peripheral surface of the rolling brush, and is used for fixing the gear ring 20 and the rolling brush without an additional coupling, so that the rolling brush structure is simpler. When the speed reducing mechanism 100 works, the motor 10 drives the sun gear 14 to rotate, motion is transmitted to the planet gears 16, the planet carrier 18 is fixed, the planet gears 16 transmit the 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 the rolling brush driving can be directly completed.
In other embodiments, the rolling brush comprises a roller and cleaning elements arranged on the outer surface of the roller, the length of the gear ring 20 is lengthened, and the motor 10 is integrally arranged in the gear ring 20, so that the gear ring 20 directly serves as the roller part of the rolling brush, and the cleaning elements are arranged on the outer surface of the gear ring 20, thereby further simplifying the rolling brush structure.
The cleaning appliance comprises the rolling brush assembly.
According to the cleaning electric appliance, the speed reducing mechanism 100 is arranged in the rolling brush, zero corners are achieved, meanwhile, the transmission mode of the speed reducing mechanism 100 is improved, transmission is more direct and reliable, the structure of the speed reducing mechanism 100 is simplified, the overall structure of the cleaning electric appliance is reduced, and the occupied space of the cleaning electric appliance is reduced.
Cleaning appliances include, but are not limited to, floor cleaners, vacuum cleaners, sweeping robots or other appliances with cleaning functions.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., 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 embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (11)

1. A speed reducing mechanism, comprising:
a motor, the motor comprising:
A body; and
The output shaft is rotationally connected with the body; and
A planetary gear mechanism, the planetary gear mechanism comprising:
The sun gear is fixed on the output shaft;
the planet carrier is fixed on the body;
the planet wheel is rotationally connected to the planet carrier and meshed with the sun wheel; and
And the motor is used for driving the sun wheel to drive the planetary wheel to rotate through the output shaft so as to drive the gear ring to rotate.
2. The reduction mechanism of claim 1, further comprising:
The base is fixed on one side of the body, the output shaft penetrates through the base, and the planet carrier is fixed on the base.
3. The reduction mechanism according to claim 2, characterized in that the reduction mechanism comprises a first bearing, a tooth portion is provided on an inner peripheral surface of the ring gear, the tooth portion is engaged with the planetary gear, the first bearing comprises 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 peripheral surface of the ring gear.
4. The reduction mechanism according to claim 3, further comprising an upper cover and a second bearing, the second bearing comprising a second inner ring and a second outer ring, the upper cover being connected to the carrier, the second inner ring being fixedly connected to the upper cover, the second outer ring being fixedly connected to an inner peripheral surface of the ring gear, the first bearing and the second bearing being separated 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 gears, the plurality of planetary gears being uniformly distributed along an inner circumference of the ring gear.
6. The reduction mechanism of claim 1, further comprising two collars spaced axially of the output shaft and fixedly connected to the planet carrier, the planet being located between the two collars.
7. The reduction mechanism of claim 6, wherein the planet carrier includes a mounting portion and a support post, the mounting portion connects the body and the support post, the output shaft passes through the mounting portion, and the planet wheel and the retainer ring are sleeved on the support post.
8. The reduction mechanism according to claim 1, wherein the ring gear includes a tooth portion, the tooth portion being disposed at an intermediate position of 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 roller brush assembly, comprising:
A rolling brush; and
The reduction mechanism of any one of claims 1-9, wherein the ring gear is fixedly connected to the roller brush.
11. A cleaning appliance comprising the roller brush assembly of claim 10.
CN202211291127.4A 2022-10-21 2022-10-21 Speed reducing mechanism, rolling brush assembly and cleaning electric appliance Pending CN117941984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211291127.4A CN117941984A (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
CN202211291127.4A CN117941984A (en) 2022-10-21 2022-10-21 Speed reducing mechanism, rolling brush assembly and cleaning electric appliance

Publications (1)

Publication Number Publication Date
CN117941984A true CN117941984A (en) 2024-04-30

Family

ID=90803588

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211291127.4A Pending CN117941984A (en) 2022-10-21 2022-10-21 Speed reducing mechanism, rolling brush assembly and cleaning electric appliance

Country Status (1)

Country Link
CN (1) CN117941984A (en)

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