WO2021109849A1 - 滚刷组件及可移动设备 - Google Patents

滚刷组件及可移动设备 Download PDF

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Publication number
WO2021109849A1
WO2021109849A1 PCT/CN2020/129064 CN2020129064W WO2021109849A1 WO 2021109849 A1 WO2021109849 A1 WO 2021109849A1 CN 2020129064 W CN2020129064 W CN 2020129064W WO 2021109849 A1 WO2021109849 A1 WO 2021109849A1
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WO
WIPO (PCT)
Prior art keywords
roller brush
bearing
rotating shaft
housing
brush assembly
Prior art date
Application number
PCT/CN2020/129064
Other languages
English (en)
French (fr)
Inventor
李奇
Original Assignee
深圳瑞科时尚电子有限公司
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 深圳瑞科时尚电子有限公司 filed Critical 深圳瑞科时尚电子有限公司
Priority to US17/772,426 priority Critical patent/US20220378271A1/en
Publication of WO2021109849A1 publication Critical patent/WO2021109849A1/zh

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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
    • A47L11/40—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
    • A47L11/24—Floor-sweeping machines, motor-driven
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0405—Driving means for the brushes or agitators
    • A47L9/0411—Driving means for the brushes or agitators driven by electric motor
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0427—Gearing or transmission means therefor
    • A47L9/0433—Toothed gearings
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0427—Gearing or transmission means therefor
    • A47L9/0444—Gearing or transmission means therefor for conveying motion by endless flexible members, e.g. belts
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
    • A47L9/0466—Rotating tools
    • A47L9/0477—Rolls
    • 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

Definitions

  • the invention relates to the field of household cleaning, in particular to a rolling brush assembly and a movable device.
  • Movable devices such as surface cleaning robots, hand-held vacuum cleaners, etc. are widely used in household cleaning.
  • surface cleaning robots generally include a main body and a roller brush set on the main body.
  • the roller brush is used to contact the surface to be cleaned to remove the surface to be cleaned.
  • the stains, dust or impurities are raised and sucked into the main body to achieve the purpose of cleaning.
  • roller brush In family life, flexible thread-like objects such as hair and string are often wound around the roller brush as the roller brush on the movable device rotates.
  • the roller brush is driven by a driving device such as a motor, and the driving device is connected to the roller brush.
  • a power transmission device between the roller brushes to transmit power.
  • the power transmission device transmits power through one or more transmission gears.
  • the output gear of the transmission gear is connected with the roller brush through the power output shaft to drive the roller brush. Rotate.
  • the power output wheel in the power transmission device is buckled on the casing of the power transmission device. Therefore, hair, string and other flexible linear objects will enter the power transmission device through the gap between the power output wheel and the casing, and then be entangled. On the transmission gear of the power transmission device, it is easy to cause the transmission gear to jam and the rotation of the roller brush to fail.
  • the present invention is proposed to solve the above-mentioned problems or at least partially solve the above-mentioned problems, a roller brush assembly and a movable device.
  • One aspect of the embodiments of the present invention provides a rolling brush assembly, including:
  • the power transmission device is arranged at one end of the roller brush, and the power transmission device includes a housing, a bearing, a power output wheel and a rotating shaft;
  • the power output wheel is fixedly connected to the rotating shaft, the bearing is fixedly installed on the housing, and the rotating shaft passes through the inner hole of the bearing to drive the roller brush to rotate.
  • the bearing includes a rotating ring and a fixed ring, and a rolling element arranged between the rotating ring and the fixed ring, and there is a blocking part between the rotating ring and the fixed ring; when the power output wheel drives When the rotating shaft rotates, the rotating ring rotates relative to the fixed ring, and the bearing prevents the flexible linear substance from entering the housing through the blocking portion.
  • the power output wheel abuts against the rotating ring of the bearing.
  • the blocking part is sandwiched between the rotating ring and the fixed ring, and the rotating ring, the fixed ring and the blocking part enclose an inner cavity for the rolling body to be accommodated.
  • the power transmission device further includes a power input wheel, the power input wheel and the power output wheel are synchronously transmitted, and the power input wheel rotates to drive the power output wheel and the rotating shaft to rotate to drive The rolling brush rotates.
  • the bearing is located between the rotating shaft and the housing.
  • the blocking portion is fixedly connected to the fixed ring or integrally formed, and the blocking portion is in clearance fit with the rotating ring.
  • the rotating ring and the rotating shaft are interference fit.
  • the inner side wall of the housing is provided with a first receiving groove for receiving the bearing, and the first receiving groove is fixedly matched with the fixing ring of the bearing.
  • the first accommodating groove is located in the power output wheel.
  • the bearing is a ball bearing
  • the rotating ring is an inner ring
  • the fixed ring is an outer ring
  • the rolling elements are balls
  • the blocking portion is in the shape of a circular ring sheet, and the axis of the center of the blocking portion coincides with the axis of the power output shaft;
  • One end of the blocking part is in clearance fit with the rotating ring, and the other end of the blocking part is fixedly connected with the fixed ring or integrally formed.
  • roller brush holder one end of the roller brush holder is connected with the rotating shaft, and the other end of the roller brush holder is connected with the roller brush.
  • a transmission sleeve is provided between the roller brush holder and the rotating shaft, the transmission sleeve is connected with the rotating shaft, and the roller brush holder is connected with the rotating shaft through the transmission sleeve.
  • the roller brush bracket is provided with a second accommodating groove for accommodating the transmission sleeve, the transmission sleeve is accommodated in the second accommodating groove, and the transmission sleeve is detachably connected to the roller brush support.
  • the transmission sleeve is in an interference fit with the second accommodating groove, and the amount of interference is less than a preset value, so that the transmission sleeve and the roller brush bracket can be detachably connected.
  • the cross-sectional size of the second receiving groove gradually increases from a direction close to the rolling brush to a direction away from the rolling brush.
  • the housing includes an upper housing and a lower housing, the upper housing and the lower housing are detachably connected, and the first receiving groove is located in the lower housing.
  • the driving device for providing power
  • the driving device is connected to the power input wheel
  • the power input wheel is located in the housing.
  • the transmission mode between the power input wheel and the power output wheel is belt transmission or meshing transmission.
  • the length direction of the driving device extends along the direction of the roller brush and parallel to the axial direction of the roller brush.
  • An embodiment of the second aspect of the present invention provides a rolling brush assembly, including:
  • the power transmission device is arranged at one end of the roller brush, and the power transmission device includes a housing, a bearing and a power output wheel;
  • the power output wheel is fixedly connected to the rotating shaft, the bearing is fixedly installed on the housing, and the rotating shaft passes through the inner hole of the bearing to drive the roller brush to rotate.
  • An embodiment of the third aspect of the present invention provides a movable device, comprising: a chassis, an upper cover, and the roller brush assembly as described in any one of the above, and the chassis has an accommodating cavity for accommodating the roller brush assembly, The rolling brush assembly is detachably accommodated in the accommodating cavity.
  • the rolling brush assembly includes a rolling brush and a power transmission device.
  • the power transmission device includes a housing, a bearing, a power output wheel, and a rotating shaft.
  • the bearing blocks the hairs on the rolling brush, String material such as string enters the power transmission device, which can effectively prevent the transmission wheel in the power transmission device from being entangled with the thread and jamming, which will lead to the failure of the rolling brush rotation, which effectively improves the rolling brush assembly and movable equipment. Security and reliability.
  • FIG. 1 is a schematic structural diagram of a roller brush assembly of a movable device according to an embodiment of the present invention
  • FIG. 1 is an embodiment of the present invention
  • FIG. 2 is a partial cross-sectional view of a rolling brush assembly of a movable device according to an embodiment of the present invention
  • Fig. 3 is a side sectional view of a rolling brush assembly of a movable device according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a movable device provided by an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a chassis of a movable device provided by an embodiment of the present invention.
  • FIG. 6 is a schematic diagram 1 of the state of the chassis of the movable device provided by the embodiment of the present invention during the process of removing the roller brush;
  • FIG. 7 is a second schematic diagram of the state of the chassis of the movable device provided by the embodiment of the present invention during the process of removing the roller brush.
  • connection herein includes any direct and indirect means of connection. Therefore, if it is described in the text that a first device is connected to a second device, it means that the first device can be directly connected to the second device, or indirectly connected to the second device through other devices.
  • FIG. 1 is a schematic structural diagram of a rolling brush assembly of a movable device provided by an embodiment of the present invention
  • FIG. 2 is a partial cross-sectional view of a rolling brush assembly of a movable device provided by an embodiment of the present invention
  • the rolling brush assembly 100 provided in this embodiment includes: a rolling brush 10 and a power transmission device 20.
  • the rolling brush assembly 100 of this embodiment can be used to install in a movable device, where the movable device may include a self-moving self-moving cleaning robot, a hand-held vacuum cleaner that moves manually, etc., and the rolling brush assembly 100 is installed In the main body of the movable device, the roller brush 10 in the roller brush assembly 100 is driven by the power transmission device 20 to rotate.
  • the rotating roller brush 10 picks up the garbage on the surface to be cleaned or removes the garbage on the surface to be cleaned.
  • the stains on the cleaning surface are wiped, and generally, in household cleaning, there are flexible linear objects such as hair and string entangled on the roller brush 10.
  • this embodiment aims to solve the problem that when the roller brush assembly 100 in the prior art is cleaning the surface to be cleaned, flexible linear objects such as hair and string are wound on the roller brush 10 and then enter the power transmission device 20 through the roller brush 10. Since the power transmission device 20 at least includes a rotating shaft and a power output wheel connected to the rotating shaft, flexible linear objects such as hair and string are easily entangled on the power output wheel, and the power output wheel is stuck, which eventually causes the roller brush 10 to rotate Technical problem of failure.
  • the power transmission device 20 in this embodiment is provided at one end of the roller brush 10, and the power transmission device 20 includes a housing 21, a power output wheel 22, a rotating shaft 23 and a bearing 30.
  • the power output wheel 22 can be integrally formed or fixedly connected with the rotating shaft 23, the bearing 30 is fixedly installed on the housing 21, and the rotating shaft 23 passes through the inner hole of the bearing 30 to drive the roller brush 10 to rotate.
  • the rotating shaft 23 of the power transmission device 20 is connected to one end of the roller brush 10.
  • the power transmission device 20 with the rotating shaft 23 can be integrated Remove from one end of the roller brush 10.
  • the rotating shaft 23 may belong to a part of the roller brush 10, that is, the roller brush 10 has a rotating shaft 23, and the rotating shaft 23 and the roller brush 10 can be non-detachably connected, and the power transmission device 20 does not include a rotating shaft.
  • the roller brush 10 In the process of installing the power transmission device 20 and the roller brush 10 together, connect the rotating shaft 23 of the roller brush 10 to the power output wheel 22 of the power transmission device 20.
  • the roller brush 10 needs to be disassembled, the roller brush 10 can be removed.
  • the roller brush 10 of the rotating shaft 23 is detached from the power transmission device 20 as a whole.
  • the power output wheel 22 may be located in the housing 21, one end of the rotating shaft 23 may be fixedly connected to the power output wheel 22, and the other end of the rotating shaft 23 may pass through the housing 21 and be fixedly connected to the roller brush 10 to drive the roller brush 10 to rotate.
  • the housing 21 may have a through hole 210 for the shaft 23 to pass through.
  • the diameter of the through hole 210 is slightly larger than the diameter of the shaft 23, so that the shaft 23 can pass through and the shaft 23 can rotate in the through hole 210. .
  • the housing 21 may include an upper housing 211 and a lower housing 212, and the upper housing 211 and the lower housing 212 are detachably connected.
  • the specific detachable connection manner may be that the upper housing 211 and the lower housing 212 may be detachably connected by fasteners such as screws, or may be detachably connected by buckles.
  • the upper housing 211 and the lower housing 212 are buckled together to form a cavity 213.
  • a plurality of transmission wheels may be provided in the cavity 213, a plurality of transmission wheels may be provided.
  • the plurality of transmission wheels may include at least a power output wheel 22 and a power input wheel 24.
  • the output wheel 22 may be fixedly connected to the rotating shaft 23, and the power input wheel 24 may be fixedly connected to the driving shaft of the driving device 40, wherein the driving device 40 may be a motor.
  • the power input wheel 24 can be driven synchronously with the power output wheel 22, and the power input wheel 24 rotates to drive the power output wheel 22 and the rotating shaft 23 to rotate to drive the roller brush 10 to rotate.
  • the length direction of the driving device 40 may extend along the direction of the roller brush 10 and parallel to the axial direction of the roller brush 10. In this way, as shown in FIGS. 1 and 2, the driving device 40 can be arranged parallel to the roller brush 10 and the layout is reasonable, which can save the installation space of the roller brush assembly in the movable equipment as much as possible.
  • the transmission mode between the power input wheel 24 and the power output wheel 22 may be belt transmission or gear meshing transmission.
  • the transmission mode between the power input wheel 24 and the power output wheel 22 is belt transmission, as shown in FIG. 1 As shown, a preset gap is maintained between the power input wheel 24 and the power output wheel 22, and the power input wheel 24 and the power output wheel 22 are connected for transmission through a belt 25.
  • the transmission mode of belt transmission is compared with the mode of gear meshing transmission.
  • Belt drive has the advantages of smooth transmission and low transmission noise.
  • At least one intermediate wheel may be provided between the power input wheel 24 and the power output wheel 22, and the power input wheel 24 and the power output wheel 22 may transmit power through the intermediate wheel.
  • the transmission modes between the wheels, between the intermediate wheels and the intermediate wheels, between the intermediate wheels and the power output wheels 22 can be belt transmission or gear meshing transmission, which can be selected by those skilled in the art according to specific needs.
  • the rolling brush assembly since the rolling brush assembly includes a rolling brush and a power transmission device, the power transmission device includes a housing, a bearing, a power output wheel, and a rotating shaft.
  • the bearing is fixed on the housing, and the rotating shaft is driven through the inner hole of the bearing.
  • the bearing can effectively block the hair, string and other linear substances on the roller brush from entering the power transmission device, which can effectively prevent the transmission wheel in the power transmission device from being caught by the thread and causing the roller brush.
  • the failure of rotation effectively improves the safety and reliability of the rolling brush assembly and the movable equipment.
  • the bearing 30 may be located between the power output wheel 22 and the housing 21, the bearing 30 may include rolling elements 31, and a rotating ring 33 and a fixed ring 32 coaxially sleeved, and are arranged on the rotating ring.
  • the rolling body 31 is provided between the rotating ring 33 and the fixed ring 32 so that the rotating ring 33 can rotate relative to the fixed ring 32.
  • the inner surface of the bearing 30 is in contact with the power output shaft 22, and the outer surface is in contact with the inner side wall of the housing 21.
  • the bearing 30 is a ball bearing
  • the rotating ring 33 is an inner ring
  • the fixed ring 32 is an outer ring
  • the rolling elements 31 are balls.
  • a plurality of balls may be evenly distributed between the rotating ring 33 and the fixed ring 32 in the circumferential direction with the axis of the inner ring and the outer ring as the center.
  • the bearing 30 is a roller bearing
  • the rolling ring 32 is an inner ring
  • the fixed ring 32 is an outer ring
  • the rolling elements 31 are rollers.
  • a plurality of rollers can be evenly distributed in the circumferential direction with the axis of the inner ring and the outer ring as the center.
  • the rotating ring 33 is sleeved on the rotating shaft 23 and is fixedly connected to the rotating shaft 23.
  • the fixed ring 32 is fixedly connected to the housing 21. When the rotating ring 33 rotates relative to the fixed ring 32, there is a function between the rotating ring 33 and the fixed ring 32. It prevents the flexible linear substance from entering the blocking portion 34 between the rotating ring 33 and the fixed ring 32. Specifically, as shown in FIG.
  • a feasible implementation is that one end of the blocking portion 34 is fixedly connected to the fixed ring 32 or integrally formed, and the other end of the blocking portion 34 is in clearance fit with the rotating ring 33, and the blocking portion 34 and the rotating ring 33 The gap between the rotating shafts is not enough to allow the flexible thread to enter the housing.
  • the fixed ring 32, the rotating ring 33, and the blocking portion 34 may jointly enclose an inner cavity for the rolling element 31 to contain, and the inner cavity may have a lubricating oil layer, and the lubricating oil layer can further prevent the flexible linear substance from entering the housing 21.
  • the so-called lubricating oil layer is formed by filling the lubricating oil in the inner cavity of the bearing.
  • the fixed ring 32 includes a first extension portion
  • the first extension portion may be formed by the fixed ring 32 extending radially inward to contact the outer edge of the rotating ring 32, and the first extension portion forms the blocking portion 34
  • the blocking part 34 and the fixed ring 32 are integrally formed or fixedly connected, the blocking part 34 is in clearance fit with the rotating ring 33, and the gap between the blocking part 34 and the rotating ring 33 is not enough to allow the flexible thread to enter the housing, and the inner part of the bearing
  • the cavity can also have a lubricating oil layer, and the lubricating oil can also block the entry of the flexible thread, thereby avoiding the entry of the flexible thread into the housing.
  • the shape of the blocking portion 34 may be in the shape of a circular ring sheet, and the axis of the center of the blocking portion 34 coincides with the axis of the rotating shaft.
  • the blocking portion 34 is embedded between the rotating ring 33 and the fixed ring 32 without increasing the axial direction of the bearing 30 thickness.
  • the power output wheel 22 may abut against the rotating ring 33 of the bearing 30. Because the bearing 30 is fixedly connected to the housing 21, the power output wheel 22 abuts against the rotating ring 33 of the bearing 30, and the power output wheel 22 is fixed to the rotating shaft 23, so that the position of the rotating shaft 23 and the bearing 30 in the axial direction Can stay the same. The power output wheel 22, the rotating ring 33 of the bearing 30, and the rotating shaft 23 rotate together, and there is no wear between the three.
  • the blocking part 34 is sandwiched between the rotating ring 33 and the fixed ring 32, and the rotating ring 33, the fixed ring and the blocking part 34 enclose an inner cavity for the rolling body 31 to be accommodated. In this way, the blocking portion 34 is located between the rotating ring 33 and the fixed ring 32 without contacting the rotating shaft 23. Therefore, the rotation of the rotating shaft 23 will not cause the blocking portion 34 to wear.
  • clamping here only refers to the relative positional relationship among the blocking portion 34, the rotating ring 33 and the fixed ring 32, but does not mean that the rotating ring 33 and the fixed ring 32 clamp the blocking portion 34. Force or resisting force.
  • the bearing 30 further includes a rotating ring 33, a fixed ring 32, a rolling element 31, and a blocking portion 34.
  • One end of the blocking portion 34 is fixedly connected to the fixed ring 32 or integrally formed, and the other end of the blocking portion 34 is connected to the rotating
  • the ring 33 is in clearance fit, the rotating ring 33 is fixedly connected to the rotating shaft, the fixed ring 32 is fixedly connected to the housing, and the rolling element 31 is arranged between the rotating ring 33 and the fixed ring 32 so that the rotating ring 33 can rotate relative to the fixed ring 32.
  • the rotating shaft Pass through the shell and connect with the rolling brush, the rotating shaft rotates to drive the rotating ring 33 and the rolling brush to rotate, but the fixed ring and the shell do not move, the hair, string and other linear substances cannot enter the shell, and there is a gap between the blocking part 34 and the rotating ring 33
  • the blocking part prevents the hair, string and other linear substances on the roller brush from entering the power transmission device, which can effectively prevent the transmission wheel in the power transmission device from being caught by the thread and causing the rotation of the roller brush to fail. Circumstances, the safety and reliability of the rolling brush assembly are effectively improved.
  • the rotating ring 33 can be interference fit with the rotating shaft 23.
  • the rotating ring 33 and the rotating shaft 23 are in interference fit, and the force is balanced in the circumferential direction of the rotating ring 33, which can ensure that the rotating ring 33 and the rotating shaft 23 are concentric.
  • the reliability after connection is good.
  • the two are not easy to move. Reliably transmit torque.
  • the fixed connection mode of the rotating ring 33 and the rotating shaft 23 may also include fastener connection, key connection, snap connection, etc. This embodiment is not particularly limited, as long as the rotation of the rotating shaft 23 can drive the rotating ring 33 to rotate synchronously, and There is no relative rotation between the two.
  • the inner side wall of the housing 21 may have a first receiving groove 214 for receiving the bearing 30, and the first receiving groove 214 is in interference fit with the fixing ring 32 of the bearing 30.
  • a cylindrical body protruding toward the cavity 213 may be formed on the inner side wall of the housing 21, and the cylindrical body and the inner side wall of the housing 21 enclose the first receiving groove 214.
  • the fixed ring 32 of the bearing 30 is in an interference fit with the first receiving groove 214, and the fixed ring 32 receives uniform circumferential force, which can ensure that the fixed ring 32 is firmly fixed on the housing 21.
  • the first accommodating groove 214 may be located in the power output wheel 22, and the power output wheel 22 may be a hollow cylindrical structure to form an inner cavity on the power output wheel 22, and the housing 21 has a first The part of the receiving groove 214 may extend into the inner cavity of the power output wheel 22 so that the first receiving groove 214 is located in the power output wheel 22, thereby making the overall structure more compact and reducing the overall thickness of the power transmission device.
  • the first accommodating groove 214 may be located on the lower housing 212, and the inner side wall of the lower housing 212 has a protruding part protruding toward the upper housing 211, and the first accommodating groove 214 may be opened in the protruding part. on.
  • the roller brush assembly provided in this embodiment further includes a roller brush holder 51, one end of the roller brush holder 51 is connected with the rotating shaft 23, and the other end of the roller brush holder 51 is connected with the roller brush 10.
  • the roller brush holder 51 can be detachably connected to the roller brush 10.
  • the roller brush holder 51 can be screwed to the roller brush 10 by screws a, so as to facilitate the assembly and installation of the roller brush holder 51.
  • the screw a can be coaxial with the roller brush 10, so that the roller brush holder 51 receives a tightening force at the central axis, and the circumferential force of the roller brush holder 51 is balanced.
  • a transmission sleeve 52 is provided between the roller brush holder 51 and the rotating shaft 23, the roller brush holder 51 is connected with the roller brush 10, the transmission sleeve 52 is connected with the rotating shaft 23, and the roller brush holder 51 is connected with the rotating shaft 23 through the transmission sleeve 52.
  • the transmission sleeve 52 may have a slot for accommodating the end of the rotating shaft 23, and the rotating shaft 23 can be in interference fit with the slot.
  • the roller brush holder 51 has a second receiving groove 511 for accommodating the transmission sleeve 52, the transmission sleeve 52 is received in the second receiving groove 511, and the transmission sleeve 52 and the roller brush support 51 are detachably connected.
  • the transmission sleeve 52 is detachably connected to the roller brush bracket 51 to facilitate taking out the roller brush 10.
  • the transmission sleeve 52 can be in an interference fit with the second receiving groove 511, and the interference amount is less than a preset value, so that the transmission sleeve 52 and the brush holder 51 can be detachably connected.
  • the transmission sleeve 52 is in an interference fit with the second receiving groove 511 to ensure that the transmission sleeve 52 can transmit the torque of the rotating shaft 23 to the roller brush holder 51 and the roller brush 10.
  • the transmission sleeve 52 can exert an external force.
  • the transmission sleeve 52 is detached from the roller brush holder 51, so that the roller brush 10 can be taken out of the movable device.
  • the preset gap x can make the hair, string and other flexible linear objects wound on the roller brush 10 flow through the rotation of the roller brush 10 (the direction shown by the arrow in FIG. 3 is the flow direction of the flexible linear object).
  • the flexible thread will not continue to flow into the power output wheel 22 of the power transmission device 20 due to the block of the bearing 30, and the power output wheel 22 will not continue to flow into the power output wheel 22 of the power transmission device 20.
  • the jam phenomenon occurs, that is, the transmission of the entire power transmission device 20 will not be affected, and the rotation of the roller brush 10 will not be affected.
  • the flow path of the flexible thread guided by the preset gap x can be curved, so that the flow path of the flexible thread in the preset gap x can be extended as much as possible in a limited space, so that the flexible thread
  • the accommodating space of the object is larger, so as to be able to accommodate more flexible thread objects.
  • the transmission sleeve 52 together with the power transmission device 20 can be separated from the roller brush holder 51 and the roller brush 10, and then the roller brush 10 can be taken out. Furthermore, the transmission sleeve 52 is lifted and removed, so that the preset gap x is exposed, so that the operator can clean the flexible linear objects such as hair and string in the preset gap x.
  • FIG. 6 is a schematic diagram of a state of the chassis of the movable device provided by an embodiment of the present invention during the process of removing the rolling brush
  • FIG. 7 is a schematic diagram of the state of the chassis of the movable device provided by an embodiment of the present invention during the process of removing the rolling brush two.
  • FIG. 6 is a state where the right end of the rolling brush is taken out of the accommodating cavity 101
  • FIG. 7 is a state where the left end of the rolling brush is also taken out of the accommodating cavity 101.
  • the rolling brush assembly 100 is installed in a movable device.
  • the left end of the rolling brush 10 is first installed in the accommodating cavity 101 for accommodating the rolling brush 10 on the movable device.
  • the cross-sectional size of the second receiving groove 511 gradually increases from the direction close to the roller brush 10 to the direction away from the roller brush 10, which can facilitate the smooth installation of the roller brush bracket 51 to fit with the transmission sleeve 52.
  • the right end of the rolling brush 10 can be placed in the card slot at the right end of the accommodating cavity 101.
  • the brush holder 51 is separated from the transmission sleeve 52. Since the cross-sectional size of the second receiving groove 511 gradually increases from the direction where the roller brush 10 is located to the direction away from the direction where the roller brush 10 is located, it is more convenient to guide the roller brush holder 51 to be separated from the transmission sleeve 52 , That is, it is convenient for the left end of the roller brush 10 to be separated from the accommodating cavity 101.
  • the left and right ends of the roller brush 10 are only examples.
  • the power transmission device 20 is located at the right end of the roller brush 10 in the process of installing the roller brush 10, first install the left end of the roller brush 10 first. After entering the accommodating cavity 101, the right end of the roller brush 10 is connected with the power transmission device 20.
  • the left end of the rolling brush 10 is first taken out from the accommodating cavity 101, and then the right end of the rolling brush 10 is separated from the transmission sleeve 52.
  • FIG. 4 is a schematic structural diagram of a movable device provided by an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a chassis of a movable device provided by an embodiment of the present invention
  • FIGS. 4 and 5 As shown, the movable device includes: a chassis 200, an upper cover 300, and a rolling brush assembly 100.
  • the chassis 200 has an accommodating cavity 101 for accommodating the roller brush assembly 100, and the roller brush assembly 100 is detachably accommodated in the accommodating cavity 101.
  • the rolling brush assembly 100 includes: a rolling brush 10; a power transmission device 20, which is arranged at one end of the rolling brush 10.
  • the power transmission device 20 includes a housing 21, a bearing 30, a power output wheel 22, and a rotating shaft 23; wherein, the power output wheel 22 is fixedly connected to the rotating shaft 23, the bearing 30 is fixedly installed on the housing 21, and the rotating shaft 23 passes through the inner hole of the bearing to drive the roller brush 10 to rotate.
  • the rotating shaft 23 may belong to a part of the roller brush 10, that is, the roller brush 10 has a rotating shaft 23, and the movable device includes: a chassis 200, an upper cover 300, and a roller brush assembly 100.
  • the chassis 200 has The accommodating cavity 101 for accommodating the rolling brush assembly 100, the rolling brush assembly 100 is detachably accommodated in the accommodating cavity 101; wherein, the rolling brush assembly 100 includes: the rolling brush 10 having a rotating shaft 23; and the power transmission device 20 is arranged in At one end of the roller brush 10, the power transmission device 20 includes a housing 21, a bearing 30, and a power output wheel 22; wherein the power output wheel 22 is fixedly connected to a rotating shaft 23, the bearing 30 is fixedly installed on the housing 21, and the rotating shaft 23 passes through the bearing 30 The inner hole drives the rolling brush 10 to rotate.
  • the movable device of this embodiment may be a self-moving cleaning robot, a handheld vacuum cleaner, etc.
  • a self-moving cleaning robot is taken as an example for description.
  • the self-moving cleaning robot may also include a body and a dust suction mechanism.
  • the body includes a chassis 200 and an upper cover 300, the upper cover 300 can be detachably set on the chassis 200, the upper cover 300 can protect the self-moving cleaning robot during use Various internal functional components are protected from violent impact or accidental dripping of liquid; and the chassis 200 can be used to carry and support various functional components, such as a dust suction mechanism.
  • the dust suction mechanism is used to suck up the garbage on the surface to be cleaned (such as the ground).
  • the dust suction mechanism includes a roller brush 10, which can be installed in the chassis 200 laterally.
  • the lateral direction refers to the direction perpendicular to the forward direction of the self-moving cleaning robot. , When the self-mobile cleaning robot is cleaning forward, it will pick up the garbage on the ground.
  • the rolling brush 10 is accommodated in the accommodating cavity 101, and a card cover (not shown in the figure) is swiped to position the rolling brush 10 in the accommodating cavity 101.
  • the self-moving cleaning robot keeps moving and the roller brush rolls on the ground to suck the impurities, dust, hair, string and other flexible threads on the ground into the vacuuming mechanism.
  • the flexible thread is more or less wound on the roller brush, and the rotation of the roller brush drives the flexible thread into the reserved gap between the housing of the power transmission device and the roller brush connection assembly, and is driven by the housing and the power output wheel. The bearing between them prevents the flexible thread from entering the power output wheel, so that the power output wheel will not jam, and the rotation of the roller brush will not be affected.
  • the user uses a hand-held vacuum cleaner.
  • the roller brush assembly of the hand-held vacuum cleaner is installed on the chassis of the floor brush.
  • the user drags the floor brush back and forth, and the roller brush rolls on the ground to remove the impurities, dust, hair and string on the ground.
  • the thread is sucked into the vacuuming mechanism, and the flexible thread is more or less wrapped around the roller brush.
  • the rotation of the roller brush drives the flexible thread into the reserved gap between the casing of the power transmission device and the roller brush connection assembly. And it is blocked by the bearing between the shell and the power output wheel, the flexible thread will not enter the power output wheel, and then there will be no jamming of the power output wheel, and the rotation of the roller brush will not be affected. .
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical or mechanical. Or other forms.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
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Abstract

一种滚刷组件（100）及可移动设备，滚刷组件（100）包括滚刷（10）和设置在滚刷（10）的一端的动力传动装置（20）。动力传动装置（20）包括壳体（21）、轴承（30）、动力输出轮（22）和转轴（23），其中动力输出轮（22）固定连接转轴（23），轴承（30）固定安装在壳体（21）上，转轴（23）穿过轴承（30）内孔带动滚刷（10）转动。可移动设备能有效避免毛发、细绳等线状物体进入动力传动装置（20）中而导致滚刷（10）转动失效的情况。

Description

滚刷组件及可移动设备
交叉引用
本申请要求于2019年12月6日提交中国专利局、申请号为201911243438.1、申请名称为“滚刷组件及可移动设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及家庭清洁领域，尤其涉及一种滚刷组件及可移动设备。
背景技术
可移动设备例如表面清洁机器人、手持吸尘器等广泛应用于家庭清洁领域，例如，表面清洁机器人一般包括主体以及设置于主体上的滚刷，滚刷用于与待清洁表面接触，以将待清洁表面的污渍、灰尘或杂质扬起并吸入主体内，达到清洁的目的。
在家庭生活中，毛发、细绳等柔性线状物体常常会随着可移动设备上的滚刷旋转而缠绕在滚刷上，而滚刷是通过电机等驱动装置所驱动的，而驱动装置与滚刷之间通常还设有动力传动装置来传递动力，动力传动装置内通过一个或一个以上的传动齿轮来传递动力，传动齿轮中的输出齿轮通过动力输出轴与滚刷连接，以带动滚刷转动。
动力传动装置中的动力输出轮卡扣于动力传动装置的壳体上，因此，毛发、细绳等柔性线状物体会通过动力输出轮和壳体之间的间隙进入动力传动装置中，进而缠绕在动力传动装置的传动齿轮上，进而容易出现传动齿轮卡死，滚刷转动失效的情况。
发明内容
鉴于上述问题，提出了本发明以解决上述问题或至少部分地解决上述问题的滚刷组件及可移动设备。
本发明实施例一方面提供一种滚刷组件，包括：
滚刷；
动力传动装置，设置在滚刷的一端，所述动力传动装置包括壳体、轴承、动力输出轮和转轴；
其中，所述动力输出轮固定连接所述转轴，所述轴承固定安装在壳体上，所述转轴穿过所述轴承内孔带动滚刷转动。
进一步的，所述轴承包括转动圈和固定圈，以及设于所述转动圈与固定圈之间的滚动体，所述转动圈与固定圈之间还具有阻挡部；当所述动力输出轮带动转轴转动时，所述转动圈相对于固定圈转动，所述轴承通过所述阻挡部阻碍柔性线状物质进入所述壳体。
进一步的，所述动力输出轮与所述轴承的转动圈抵接。
进一步的，所述阻挡部夹设于所述转动圈与所述固定圈之间，所述转动圈、所述固定圈以及所述阻挡部围成供所述滚动体容纳的内腔。
进一步的，所述动力传动装置还包括：动力输入轮，所述动力输入轮与所述动力输出轮同步传动，所述动力输入轮转动从而带动所述动力输出轮和所述转轴转动，以驱动所述滚刷转动。
进一步的，所述轴承位于所述转轴与所述壳体之间。
进一步的，所述阻挡部与所述固定圈固定连接或一体成型，所述阻挡部与所述转动圈间隙配合。
进一步的，在所述内腔中具有润滑油层，以阻碍柔性线状物质进入所述壳体。
进一步的，所述转动圈与所述转轴过盈配合。
进一步的，所述壳体内侧壁上具有用于容纳所述轴承的第一容纳槽，所述第一容纳槽与所述轴承的固定圈固定配合。
进一步的，所述第一容纳槽位于所述动力输出轮内。
进一步的，所述轴承为滚珠轴承，所述转动圈为内圈，所述固定圈为外圈，所述滚动体为滚珠。
进一步的，所述阻挡部呈圆环片状，且所述阻挡部的圆心所在轴线与所述动力输出轴的轴线重合；
所述阻挡部的一端与所述转动圈间隙配合，所述阻挡部的另一端与所述固定圈固定连接或一体成型。
进一步的，还包括滚刷支架，所述滚刷支架一端与所述转轴连接，所述滚刷支架另一端与所述滚刷连接。
进一步的，在所述滚刷支架与所述转轴之间具有传动套，所述传动套与所述转轴连接，所述滚刷支架通过所述传动套与所述转轴连接。
进一步的，所述滚刷支架和所述传动套与所述壳体之间具有预设间隙。
进一步的，
所述滚刷支架上具有用于容纳所述传动套的第二容纳槽，所述传动套容纳于所述第二容纳槽中，所述传动套与所述滚刷支架可拆卸连接。
进一步的，所述传动套与所述第二容纳槽过盈配合，且过盈量小于预设值，以使所述传动套与所述滚刷支架可拆卸连接。
进一步的，所述第二容纳槽的截面尺寸由靠近所述滚刷所在方向向远离所述滚刷所在方向逐渐增大。
进一步的，所述壳体包括上壳体与下壳体，所述上壳体与所述下壳体可拆卸连接，所述第一容纳槽位于下壳体。
进一步的，还包括用于提供动力的驱动装置，所述驱动装置与所述动力输入轮连接，所述动力输入轮位于所述壳体内。
进一步的，所述动力输入轮与所述动力输出轮之间的传动方式为带传动或啮合传动。
进一步的，所述驱动装置的长度方向沿所述滚刷所在方向、且平行于所述滚刷的轴线方向延伸。
本发明第二方面实施例提供一种滚刷组件，包括：
滚刷，具有一转轴；
动力传动装置，设置在滚刷的一端，所述动力传动装置包括壳体、轴承和动力输出轮；
其中，所述动力输出轮固定连接所述转轴，所述轴承固定安装在壳体上，所述转轴穿过所述轴承内孔带动滚刷转动。
本发明第三方面实施例提供一种可移动设备，包括：底盘、上盖，以及如上任一项所述的滚刷组件，所述底盘上具有用于容纳所述滚刷组件的容纳腔，所述滚刷组件可拆卸地容纳于所述容纳腔中。
本发明实施例提供的滚刷组件及可移动设备，由于滚刷组件包括滚刷、动力传动装置，动力传动装置包括壳体、轴承、动力输出轮和转轴，通过轴承阻挡滚刷上的毛发、细绳等线状物质进入动力传动装置中，能够有效防止由于动力传动装置中的传动轮缠绕线状物而卡死，进而导致滚刷转动失效的情况，有效提高了滚刷组件和可移动设备的安全性和可靠性。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明一实施例提供的图1为本发明实施例提供的可移动设备的滚刷组件的结构示意图；
图2为本发明实施例提供的可移动设备的滚刷组件的局部剖视图；
图3为本发明实施例提供的可移动设备的滚刷组件的侧剖视图；
图4为本发明实施例提供的可移动设备的结构示意图；
图5为本发明实施例提供的可移动设备的底盘的结构示意图；
图6为本发明实施例提供的可移动设备的底盘在取出滚刷的过程中的状态示意图一；
图7为本发明实施例提供的可移动设备的底盘在取出滚刷的过程中的状态示意图二。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。
在通篇说明书及权利要求当中所提及的“包括”为一开放式用语，故应解释成“包括但不限定于”。“大致”是指在可接收的误差范围内，本领域技术人员能够在一定误差范围内解决所述技术问题，基本达到所述技术效果。
此外，“连接”一词在此包含任何直接及间接的连接手段。因此，若文中描述一第一装置连接于一第二装置，则代表所述第一装置可直接连接于所述第二装置，或通过其它装置间接地连接至所述第二装置。
应当理解，本文中使用的术语“及/或、和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A1及/或B1，可以表示：单独存在A1，同时存在A1和B1，单独存在B1这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
下面结合附图，对本发明的一些实施方式作详细说明。在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
实施例一
图1为本发明实施例提供的可移动设备的滚刷组件的结构示意图；图 2为本发明实施例提供的可移动设备的滚刷组件的局部剖视图；图3为本发明实施例提供的可移动设备的滚刷组件的侧剖视图。请参照附图1至附图3所示，本实施例提供的滚刷组件100，包括：滚刷10和动力传动装置20。
本实施例的滚刷组件100可以用于安装至可移动设备中，其中，可移动设备可以包括自移动的自移动清洁机器人、人工移动的手持式吸尘器等可移动设备中，滚刷组件100安装在可移动设备的主体中，滚刷组件100中的滚刷10由动力传动装置20带动而旋转，在可移动设备前进清扫时，旋转的滚刷10将待清洁表面上的垃圾拾取或者将待清洁表面的污渍进行擦拭，而通常在家庭清洁中，会存在毛发、细绳等柔性线状物体缠绕在滚刷10上。而本实施例旨在解决现有技术中滚刷组件100在清洁待清洁表面时，毛发、细绳等柔性线状物体缠绕在滚刷10上进而通过滚刷10进入到动力传动装置20中，由于动力传动装置20至少包括转轴以及与转轴连接的动力输出轮，毛发、细绳等柔性线状物体容易缠绕在动力输出轮上，而出现动力输出轮卡死的问题，最终导致滚刷10转动失效的技术问题。
具体的，本实施例中的动力传动装置20设置在滚刷10的一端，动力传动装置20包括壳体21、动力输出轮22、转轴23和轴承30。
其中，动力输出轮22可以与转轴23一体成型或固定连接，轴承30固定安装在壳体21上，转轴23穿过轴承30内孔带动滚刷10转动。在与滚刷10安装在一起的过程中，将动力传动装置20的转轴23与滚刷10的一端连接，在需要将滚刷10拆卸下来时，可以将带有转轴23的动力传动装置20整体从滚刷10的一端拆卸下来。
在其他实施例中，转轴23可以属于滚刷10的一部分，即滚刷10上具有转轴23，转轴23与滚刷10可以不可拆卸连接，而动力传动装置20上不包括转轴。在将动力传动装置20与滚刷10安装在一起的过程中，将 滚刷10的转轴23与动力传动装置20的动力输出轮22连接，在需要将滚刷10拆卸下来时，可以将带有转轴23的滚刷10整体从动力传动装置20上拆卸下来。
动力输出轮22可以位于壳体21内，转轴23一端可以与动力输出轮22固定连接，转轴23另一端可以从壳体21穿出并与滚刷10固定连接，以驱动滚刷10旋转，其中，在壳体21上可以具有供转轴23穿出的穿设孔210，穿设孔210的孔径略大于转轴23的直径，以便于转轴23穿过，且便于转轴23在穿设孔210中转动。
壳体21可以包括上壳体211与下壳体212，上壳体211与下壳体212可拆卸连接。具体可拆卸连接方式可以是，上壳体211与下壳体212可以通过螺钉等紧固件可拆卸连接，或者，通过卡扣可拆卸连接等。上壳体211与下壳体212扣合后形成空腔213，在空腔213中可以设有多个传动轮，其中多个传动轮至少可以包括动力输出轮22，以及动力输入轮24，动力输出轮22可以与转轴23固定连接，动力输入轮24可以与驱动装置40的驱动轴固定连接，其中，驱动装置40可以为电机。动力输入轮24可以与动力输出轮22同步传动，动力输入轮24转动从而带动动力输出轮22和转轴23转动，以驱动滚刷10转动。在本实施例中，优选的，驱动装置40的长度方向可以沿滚刷10所在方向、且平行于滚刷10的轴线方向延伸。如此一来，如图1和图2所示，使得驱动装置40能够平行于滚刷10设置，布局合理，能够尽可能地节省可移动设备中安装滚刷组件的安装空间。
动力输入轮24与动力输出轮22之间的传动方式可以为带传动或齿轮啮合传动，在本实施例中，动力输入轮24与动力输出轮22之间的传动方式为皮带传动，如图1所示，动力输入轮24与动力输出轮22之间保持预设间隙，动力输入轮24与动力输出轮22之间通过皮带25连接传动，皮带传动的传动方式相较于齿轮啮合传动的方式，皮带传动具有传动平 稳，传动噪音小的优点。
在其他实施方式中，动力输入轮24与动力输出轮22之间还可以设有至少一个中间轮，动力输入轮24与动力输出轮22之间可以通过中间轮传递动力，动力输入轮24与中间轮之间、中间轮与中间轮之间、中间轮与动力输出轮22之间的传动方式可以为带传动或齿轮啮合传动，本领域技术人员可以根据具体需要而选择。
本实施例提供的滚刷组件，由于滚刷组件包括滚刷、动力传动装置，动力传动装置包括壳体、轴承、动力输出轮和转轴，轴承固定在壳体上，转轴穿过轴承内孔带动滚刷转动，通过轴承可有效阻挡滚刷上的毛发、细绳等线状物质进入动力传动装置中，能够有效防止由于动力传动装置中的传动轮缠绕线状物而卡死，进而导致滚刷转动失效的情况，有效提高了滚刷组件和可移动设备的安全性和可靠性。基于上述实施例，具体的，轴承30可以位于动力输出轮22与壳体21之间，轴承30可以包括滚动体31，以及同轴套设的转动圈33和固定圈32，以及设于转动圈33与固定圈32之间的阻挡部34，滚动体31设于转动圈33与固定圈32之间以使转动圈33能够相对于固定圈32转动。轴承30内表面与动力输出轴22接触，外表面与壳体21的内侧壁接触。在本实施例中，优选的，轴承30为滚珠轴承，转动圈33为内圈，固定圈32为外圈，滚动体31为滚珠。多个滚珠可以以内圈和外圈的轴线为中心周向均匀分布在转动圈33与固定圈32之间。可选的，轴承30为滚柱轴承，滚动圈32为内圈，固定圈32为外圈，滚动体31为滚柱，多个滚柱可以以内圈和外圈的轴线为中心周向均匀分布在转动圈33与固定圈32之间。滚珠轴承与滚柱轴承相比，滚珠轴承与内圈和外圈之间为点接触，滚柱轴承与内圈和外圈之间为线接触，滚珠轴承的摩擦阻力更小，功率消耗小，机械效率更高。转动圈33套设于转轴23上，并与转轴23固定连接，固定圈32与壳体21固定连接，在转动圈33相对于固定圈32转动时，转动圈33与固定 圈32之间具有用于阻挡柔性线状物质进入转动圈33与固定圈32之间的阻挡部34。具体的，如图2所示，一种可行的实施方式是，阻挡部34一端与固定圈32固定连接或者一体成型，阻挡部34另一端与转动圈33间隙配合，阻挡部34与转动圈33转轴之间的间隙不足以让柔性线状物进入壳体。
固定圈32、转动圈33以及阻挡部34可以共同围成供滚动体31容纳的内腔，在内腔中可以具有润滑油层，通过润滑油层可以进一步阻碍柔性线状物质进入壳体21。所谓润滑油层是在轴承的内腔中充填润滑油所形成的。
再者，又例如，固定圈32包括第一延伸部，该第一延伸部可以是固定圈32径向向内延伸至与转动圈32外侧边缘接触而形成，该第一延伸部形成阻挡部34，阻挡部34与固定圈32一体成型或固定连接，阻挡部34与转动圈33间隙配合，阻挡部34与转动圈33之间的间隙不足以让柔性线状物进入壳体，且轴承的内腔也可具有润滑油层，润滑油也可以阻挡柔性线状物进入，进而避免阻挡柔性线状物进入壳体内部。阻挡部34的形状可以呈圆环片状，且阻挡部34的圆心所在轴线与转轴的轴线重合，阻挡部34内嵌于转动圈33与固定圈32之间，而不增加轴承30的轴向厚度。
另外，在轴向方向上，动力输出轮22可以与轴承30的转动圈33抵接。由于轴承30与壳体21固定连接，动力输出轮22又与轴承30的转动圈33抵接，而动力输出轮22又与转轴23固定，从而使得转轴23和轴承30在轴向方向上的位置能够保持不变。动力输出轮22、轴承30的转动圈33以及转轴23三者一起转动，三者之间不会产生磨损。
阻挡部34夹设于转动圈33与固定圈32之间，转动圈33、固定圈以及阻挡部34围成供滚动体31容纳的内腔。这样一来，阻挡部34位于转动圈33与固定圈32之间，而不会与转轴23接触，因此转轴23的转动不 会使阻挡部34产生磨损。
需要说明的是，此处的“夹设”仅仅表示阻挡部34、转动圈33和固定圈32三者的相对位置关系，而并不表示转动圈33和固定圈32对阻挡部34施加夹持力或抵顶力。
本实施例提供的滚刷组件，轴承30进一步包括转动圈33、固定圈32、滚动体31和阻挡部34，阻挡部34一端与固定圈32固定连接或者一体成型，阻挡部34另一端与转动圈33间隙配合，转动圈33与转轴固定连接，固定圈32与壳体固定连接，滚动体31设于转动圈33和固定圈32之间以使转动圈33能够相对于固定圈32转动，转轴穿出壳体与滚刷连接，转轴转动带动转动圈33及滚刷转动，而固定圈与壳体不动，毛发、细绳等线状物质无法进入壳体内，阻挡部34与转动圈33间隙配合，通过阻挡部阻挡滚刷上的毛发、细绳等线状物质进入动力传动装置中，能够有效防止由于动力传动装置中的传动轮缠绕线状物而卡死，进而导致滚刷转动失效的情况，有效提高了滚刷组件安全性和可靠性。
在上述实施例中，转动圈33可以与转轴23过盈配合。转动圈33与转轴23过盈配合，在转动圈33的周向方向上受力均衡，能够很好地保证转动圈33与转轴23同心，联接后可靠性较好，两者不易发生运动，能够可靠地传递扭矩。当然，转动圈33与转轴23的固定连接方式还可以包括紧固件连接，键连接，卡接等，本实施例不特别限定，只要能实现转轴23的转动能够带动转动圈33同步转动，且两者之间不存在相对转动即可。
如图2和图3所示，进一步的，壳体21的内侧壁上可以具有用于容纳轴承30的第一容纳槽214，第一容纳槽214与轴承30的固定圈32过盈配合。具体的，在壳体21的内侧壁上可以形成有朝空腔213凸出的筒状体，筒状体与壳体21的内侧壁围成第一容纳槽214。轴承30的固定圈32与该第一容纳槽214过盈配合，固定圈32周向受力均匀，能够保证固定 圈32稳固固定在壳体21上。
在本实施例中，第一容纳槽214可以位于动力输出轮22内，动力输出轮22可以为内部中空的筒状结构，以在动力输出轮22上形成内腔，壳体21上具有第一容纳槽214的部分可以伸入动力输出轮22的内腔中，以使得第一容纳槽214位于动力输出轮22内，从而使得整体结构更加紧凑，减小了动力传动装置的整体厚度。
更具体的，第一容纳槽214可以位于下壳体212上，在下壳体212的内侧壁上具有朝向上壳体211凸出的凸出部，第一容纳槽214可以开设在该凸出部上。
本实施例提供的滚刷组件还包括，滚刷支架51，滚刷支架51的一端与转轴23连接，滚刷支架51另一端与滚刷10连接。优选的，滚刷支架51可以与滚刷10可拆卸连接，如图3所示，滚刷支架51可以通过螺钉a与滚刷10螺接，以便于滚刷支架51的装配与安装滚刷，螺钉a可以与滚刷10共轴，这样可使得滚刷支架51在中心轴处受到紧固力，滚刷支架51的周向受力均衡。
在滚刷支架51与转轴23之间具有传动套52，滚刷支架51与滚刷10连接，传动套52与转轴23连接，滚刷支架51通过传动套52与转轴23连接。类似的，传动套52上可以具有用于容纳转轴23端部的卡槽，转轴23可以与卡槽过盈配合。滚刷支架51上具有用于容纳传动套52的第二容纳槽511，传动套52容纳于第二容纳槽511中，传动套52与滚刷支架51可拆卸连接。传动套52与滚刷支架51可拆卸连接，以便于将滚刷10取出。
优选的，传动套52可以与第二容纳槽511过盈配合，且过盈量小于预设值，以使传动套52与滚刷支架51可拆卸连接。传动套52与第二容纳槽511过盈配合，以保证传动套52能够传递转轴23的扭矩给滚刷支架51和滚刷10，当过盈量小于预设值时，传动套52能够在外力大于预设值 时，传动套52从滚刷支架51上脱离，以便于将滚刷10从可移动设备上取出。
更进一步的，如图3所示，滚刷支架51与壳体21之间，以及传动套52与壳体21之间具有预设间隙x。该预设间隙x可以使得缠绕在滚刷10上的毛发、细绳等柔性线状物体通过滚刷10的旋转流动(如图3中箭头所示方向为柔性线状物的流动方向)到该预设间隙x中，并容纳在该预设间隙x中，而由于轴承30的阻挡，柔性线状物不会继续流动到动力传动装置20的动力输出轮22中，进而动力输出轮22不会出现卡死现象，也即不会影响整个动力传动装置20的传动，滚刷10的转动也不会受到影响。
另外，还预设间隙x所引导柔性线状物的流动路径可以为弯曲状，从而可以使得在有限的空间内尽可能地延长柔性线状物在预设间隙x中的流动路径，使得柔性线状物的容纳空间较大，以能够容纳更多的柔性线状物。
在需要清理预设间隙x中的毛发、细绳等柔性线状物时，可将传动套52连同动力传动装置20一起与滚刷支架51和滚刷10分离开，进而将滚刷10取出，进而将传动套52通过翘起取下来，使得预设间隙x处露出，以便于操作者清理预设间隙x中的毛发、细绳等柔性线状物。
如图3所示，第二容纳槽511的截面尺寸由靠近滚刷10所在方向向远离滚刷10所在方向逐渐增大。图6为本发明实施例提供的可移动设备的底盘在取出滚刷的过程中的状态示意图一；图7为本发明实施例提供的可移动设备的底盘在取出滚刷的过程中的状态示意图二。其中，图6为滚刷右端从容纳腔101中取出的状态，图7为滚刷的左端也从容纳腔101中取出的状态。滚刷组件100安装在可移动设备中，在装配滚刷10的时候，滚刷10的左端先装入可移动设备上用于容纳滚刷10的容纳腔101中，在装入时，由于第二容纳槽511的截面尺寸由靠近滚刷10所在方向 向远离滚刷10所在方向逐渐增大，能够便于滚刷支架51顺畅地安装至与传动套52配合。而滚刷10的右端可以放置在容纳腔101右端的卡槽中。而拆卸滚刷10时，如图6所示，可以先取出滚刷10右端，再用力朝向右上方方向拔出滚刷10的左端(如图7所示)即可取出滚刷10，即将滚刷支架51从传动套52上脱离，由于第二容纳槽511的截面尺寸由靠近滚刷10所在方向向远离滚刷10所在方向逐渐增大，更便于引导滚刷支架51从传动套52上脱离，即方便滚刷10左端从容纳腔101中脱离。
当然，需要说明的是，滚刷10的左端和右端仅仅为示例，当动力传动装置20位于滚刷10的右端时，则在安装滚刷10的过程中，先将滚刷10的左端先装入容纳腔101中，后将滚刷10的右端与动力传动装置20连接。或者，在取出滚刷10的过程中，先将滚刷10的左端从容纳腔101中取出，后将滚刷10的右端与传动套52脱离。
实施例二
本实施例提供一种可移动设备，图4为本发明实施例提供的可移动设备的结构示意图；图5为本发明实施例提供的可移动设备的底盘的结构示意图；如图4和图5所示，可移动设备包括：底盘200、上盖300，以及滚刷组件100。底盘200上具有用于容纳滚刷组件100的容纳腔101，滚刷组件100可拆卸地容纳于容纳腔101中。
其中，滚刷组件100包括：滚刷10；动力传动装置20，设置在滚刷10的一端，动力传动装置20包括壳体21、轴承30、动力输出轮22和转轴23；其中，动力输出轮22固定连接转轴23，轴承30固定安装在壳体21上，转轴23穿过轴承内孔带动滚刷10转动。
或者，在又一实施方式中，转轴23可以属于滚刷10的一部分，即滚刷10上具有转轴23，可移动设备包括：底盘200、上盖300，以及滚刷组件100，底盘200上具有用于容纳滚刷组件100的容纳腔101，滚刷组件100可拆卸地容纳于容纳腔101中；其中，滚刷组件100包括：滚刷10， 具有一转轴23；动力传动装置20，设置在滚刷10的一端，动力传动装置20包括壳体21、轴承30和动力输出轮22；其中，动力输出轮22固定连接转轴23，轴承30固定安装在壳体21上，转轴23穿过轴承30内孔带动滚刷10转动。
滚刷组件100的具体结构和功能可以参照实施例一的描述，本实施例不再赘述。本实施例的可移动设备可以为自移动清洁机器人和手持式吸尘器等，在本实施例中以自移动清洁机器人为例进行说明，具体的，该自移动清洁机器人还可以包括本体、吸尘机构(图中未示出)和驱动装置40；本体包括底盘200和上盖300，上盖300可以可拆卸地设于底盘200上，上盖300可以在自移动清洁机器人使用期间保护自移动清洁机器人内部的各种功能部件免受激烈撞击或无意间滴洒的液体的损坏；而底盘200可用于承载和支撑各种功能部件，例如，吸尘机构。吸尘机构用于将待清洁表面(例如地面)上的垃圾进行吸取，吸尘机构包括滚刷10，滚刷10可以横向安装于底盘200中，横向是指垂直于自移动清洁机器人的前进方向，在自移动清洁机器人前进清扫时，将地面上的垃圾拾取。滚刷10容纳在容纳腔101中，滚刷卡盖(图中未示出)以用于将滚刷10定位在容纳腔101中。
下面结合具体的应用场景对本发明实施例提供的滚刷组件及可移动设备进行说明：
应用场景1
用户使用自移动清洁机器人清理家庭地面时，自移动清洁机器人不断移动，滚刷在地面滚动，以将地面上的杂质、灰尘，以及毛发、细绳等柔性线状物吸入吸尘机构中，而柔性线状物或多或少缠绕在滚刷上，滚刷转动带动柔性线状物进入动力传动装置的壳体与滚刷连接组件之间的预留间隙中，并且被壳体与动力输出轮之间的轴承阻挡，柔性线状物不会进入到动力输出轮中，进而不会产生动力输出轮的卡死的现象，滚 刷的转动不会受到影响。
应用场景2
用户使用手持式吸尘器，手持式吸尘器的滚刷组件安装在地刷的底盘上，用户来回拖动地刷，滚刷在地面滚动，以将地面上的杂质、灰尘，以及毛发、细绳等柔性线状物吸入吸尘机构中，而柔性线状物或多或少缠绕在滚刷上，滚刷转动带动柔性线状物进入动力传动装置的壳体与滚刷连接组件之间的预留间隙中，并且被壳体与动力输出轮之间的轴承阻挡，柔性线状物不会进入到动力输出轮中，进而不会产生动力输出轮的卡死的现象，滚刷的转动不会受到影响。
在本发明所提供的几个实施例中，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (17)

  1. 一种滚刷组件，其特征在于，包括：
    滚刷；
    动力传动装置，设置在滚刷的一端，所述动力传动装置包括壳体、轴承、动力输出轮和转轴；
    其中，所述动力输出轮固定连接所述转轴，所述轴承固定安装在壳体上，所述转轴穿过所述轴承内孔带动滚刷转动。
  2. 根据权利要求1所述的滚刷组件，其特征在于，所述轴承包括转动圈和固定圈，以及设于所述转动圈与固定圈之间的滚动体，所述转动圈与固定圈之间还具有阻挡部；当所述动力输出轮带动转轴转动时，所述转动圈相对于固定圈转动，所述轴承通过所述阻挡部阻碍柔性线状物质进入所述壳体。
  3. 根据权利要求2所述的滚刷组件，其特征在于，所述动力输出轮与所述轴承的转动圈抵接。
  4. 根据权利要求3所述的滚刷组件，其特征在于，所述阻挡部夹设于所述转动圈与所述固定圈之间，所述转动圈、所述固定圈以及所述阻挡部围成供所述滚动体容纳的内腔。
  5. 根据权利要求1所述的滚刷组件，其特征在于，所述动力传动装置还包括：动力输入轮，所述动力输入轮与所述动力输出轮同步传动，所述动力输入轮转动从而带动所述动力输出轮和所述转轴转动，以驱动所述滚刷转动。
  6. 根据权利要求1所述的滚刷组件，其特征在于，所述轴承位于所述转轴与所述壳体之间。
  7. 根据权利要求2所述的滚刷组件，其特征在于，所述阻挡部与所述固定圈固定连接或一体成型，所述阻挡部与所述转动圈间隙配合。
  8. 根据权利要求4所述的滚刷组件，其特征在于，在所述内腔中具 有润滑油层，以阻碍柔性线状物质进入所述壳体。
  9. 根据权利要求2所述的滚刷组件，其特征在于，所述壳体内侧壁上具有用于容纳所述轴承的第一容纳槽，所述第一容纳槽与所述轴承的固定圈固定配合。
  10. 根据权利要求9所述的滚刷组件，其特征在于，所述第一容纳槽位于所述动力输出轮内。
  11. 根据权利要求2所述的滚刷组件，其特征在于，所述轴承为滚珠轴承，所述转动圈为内圈，所述固定圈为外圈，所述滚动体为滚珠。
  12. 根据权利要求2所述的滚刷组件，其特征在于，所述阻挡部呈圆环片状，且所述阻挡部的圆心所在轴线与所述动力输出轴的轴线重合；
    所述阻挡部的一端与所述转动圈间隙配合，所述阻挡部的另一端与所述固定圈固定连接或一体成型。
  13. 根据权利要求1所述的滚刷组件，其特征在于，还包括滚刷支架，所述滚刷支架一端与所述转轴连接，所述滚刷支架另一端与所述滚刷连接。
  14. 根据权利要求9所述的滚刷组件，其特征在于，所述壳体包括上壳体与下壳体，所述上壳体与所述下壳体可拆卸连接，所述第一容纳槽位于下壳体。
  15. 根据权利要求5所述的滚刷组件，其特征在于，还包括用于提供动力的驱动装置，所述驱动装置与所述动力输入轮连接，所述动力输入轮位于所述壳体内。
  16. 一种滚刷组件，其特征在于，包括：
    滚刷，具有一转轴；
    动力传动装置，设置在滚刷的一端，所述动力传动装置包括壳体、轴承和动力输出轮；
    其中，所述动力输出轮固定连接所述转轴，所述轴承固定安装在壳体 上，所述转轴穿过所述轴承内孔带动滚刷转动。
  17. 一种可移动设备，其特征在于，包括：底盘、上盖，以及滚刷组件，所述底盘上具有用于容纳所述滚刷组件的容纳腔，所述滚刷组件可拆卸地容纳于所述容纳腔中；其中，滚刷组件包括：
    滚刷；
    动力传动装置，设置在滚刷的一端，所述动力传动装置包括壳体、轴承、动力输出轮和转轴；
    其中，所述动力输出轮固定连接所述转轴，所述轴承固定安装在壳体上，所述转轴穿过所述轴承内孔带动滚刷转动。
PCT/CN2020/129064 2019-12-06 2020-11-16 滚刷组件及可移动设备 WO2021109849A1 (zh)

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