CN217447644U - Transmission assembly, cleaning module and cleaning robot - Google Patents

Abstract

The utility model discloses a drive assembly, clean module and cleaning machines people, drive assembly, include: a motor output unit; the first output end is in transmission connection with the motor output unit; the second output end is in transmission connection with the motor output unit through a second speed reducing unit; wherein the second reduction unit is configured such that the output rotation speed of the second output terminal is smaller than the output rotation speed of the first output terminal.

Description

Transmission assembly, cleaning module and cleaning robot

Technical Field

The utility model belongs to the technical field of the motor, concretely relates to transmission assembly, clean module and cleaning machines people.

Background

At present, two requirements exist in the cleaning robot industry at the same time: dry sweeping and wet mopping. The difference of the rotating speeds of the driving motors required by dry sweeping and wet sweeping is large, and under the condition that one driving motor is arranged, the rotating speed requirements required by dry sweeping and wet sweeping cannot be met by a single driving motor at the same time. Accordingly, there is a need for improvements in the art that overcome the deficiencies in the prior art.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to solve the technical problem that a transmission assembly, clean module and cleaning robot are provided.

In order to solve the technical problem, the utility model provides a transmission assembly, include: a motor output unit; the first output end is in transmission connection with the motor output unit; the second output end is in transmission connection with the motor output unit through a second speed reducing unit; wherein the second reduction unit is configured such that the output rotation speed of the second output terminal is smaller than the output rotation speed of the first output terminal.

Preferably, the first output end of the transmission assembly is in transmission connection with the motor output unit through a first speed reduction unit; the motor output unit comprises a motor output shaft, and the first speed reduction unit and the second speed reduction unit are connected with the motor output shaft respectively.

Preferably, in the transmission assembly, the first reduction unit is a planetary reduction gear train, the second reduction unit is an N-stage reduction gear set, and N is greater than 1; wherein the rotation axis of the first output end is coaxially distributed with the rotation axis of the second output end.

Preferably, in the transmission assembly, the first speed reduction unit includes a sun gear sleeved on the output shaft of the motor, a planet gear engaged with the sun gear, and a hub engaged with the planet gear;

the sun wheel and the planet wheel are accommodated in the wheel casing, the planet wheel is rotatably arranged in the wheel casing, and an inner gear ring which is positioned on the periphery of the planet wheel and meshed with the planet wheel is formed in the wheel casing; wherein, the first output end is fixedly arranged on the outer wall of the wheel casing.

Preferably, in the transmission assembly, the second reduction unit is located in the wheel housing, and the second reduction unit includes the sun gear, a first gear engaged with the sun gear, a second gear rotating synchronously with the first gear, and a third gear engaged with the second gear; wherein, the second output end is rotatably arranged on the wheel casing and is connected with the third gear.

Preferably, the first output end and the second output end of the transmission assembly are provided with rotation stopping structures; the rotation stopping structure is a rotation stopping plane formed on the outer circumferential wall surfaces of the first output end and the second output end; alternatively, the first and second electrodes may be,

the rotation stopping structure is a rib arranged on the outer circumferential wall surfaces of the first output end and the second output end, and the rib extends along the axial direction of the first output end or the second output end.

The utility model also provides a clean module, include: the transmission assembly is provided with a first output end and a second output end; the cleaning roller is in transmission connection with the first output end or the second output end; wherein the transmission assembly is the transmission assembly as described above.

Preferably, the cleaning module is connected with the first output end or the second output end in a detachable mode; when the cleaning roller is provided with a dry sweeping element, the cleaning roller is in transmission connection with the first output end; or when the cleaning roller is provided with a wet-dragging element, the cleaning roller is in transmission connection with the second output end; or when the cleaning roller is provided with a dry sweeping component and a wet mopping component, the cleaning roller is selectively in transmission connection with the first output end or the second output end.

Preferably, in the cleaning module, the second output end is in a shaft shape, and the first output end is in an annular structure annularly arranged on the periphery of the second output end; when the cleaning roller is provided with a dry sweeping element, a first mounting part which is used for being matched with the first output end in a transmission way is arranged at the end part of the cleaning roller close to the transmission component side, the first mounting part is annular, and the second output end idles in a central groove of the first mounting part; alternatively, the first and second electrodes may be,

when the cleaning roller is provided with a wet-dragging element, a second mounting part which is used for being in transmission fit with a second output end is arranged at the end part of the cleaning roller close to the transmission assembly side, slots which are distributed along the axial direction of the cleaning roller are arranged on the second mounting part, the second output end is inserted into the slots, and the first output end idles at the periphery of the second mounting part; alternatively, the first and second liquid crystal display panels may be,

when the cleaning roller is equipped with and sweeps the component futilely and drag the component with wet, the cleaning roller is close to can dismantle on the tip of drive assembly side dispose be used for with first output transmission complex first installation department with be used for with second output transmission complex second installation department.

The utility model also provides a cleaning robot, include as before transmission assembly or as before clean module.

The utility model provides a technical scheme has following advantage:

the motor output unit can realize double-gear output through the first output end and the second output end, can meet the requirements of different loads on different output rotating speeds, and has the advantage of convenient use; meanwhile, the double-gear rotating speed output can be avoided by using double motors or variable speed motors, and the use cost is effectively reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a cleaning module provided by the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the scrub roller of the present invention connected to a first output terminal;

FIG. 4 is an enlarged schematic view of the area B in FIG. 3;

FIG. 5 is a schematic cross-sectional view of the scrub roller of the present invention when connected to a second output;

FIG. 6 is an enlarged schematic view of region A in FIG. 5;

fig. 7 is a schematic diagram of a position relationship between the first output terminal and the second output terminal in the present invention;

fig. 8 is a schematic cross-sectional view of the transmission assembly provided by the present invention at a first viewing angle;

fig. 9 is a schematic cross-sectional view of the transmission assembly at a second viewing angle according to the present invention;

fig. 10 is a schematic structural view of a first reduction unit according to the present invention;

fig. 11 is a schematic structural view of the first gear and the second gear of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

Example 1

The cleaning robot generally has both dry-sweeping and wet-mopping cleaning functions, and the difference in the rotational speed required for the dry-sweeping and wet-mopping is large. Wherein, dry and sweep required rotational speed great, can realize will treating dust and piece on the clean face to raise, and then realize with dust and piece suction. The rotating speed required by wet mopping is less than that of dry sweeping so as to realize the wiping operation of the surface to be cleaned. From the above, in the case of providing one driving motor, the rotation speed requirements for dry sweeping and wet mopping cannot be satisfied at the same time. In the prior art, in order to overcome the above problems, the most common method is to separately drive a cleaning roller having a dry-sweeping function and a cleaning roller having a wet-mopping function by two driving motors, which has a disadvantage of high cost. In addition, another method is to realize two-gear rotating speed output through a variable speed motor, and the method has the defect of short service life of the variable speed motor.

In order to solve the above technical problem, the present invention provides a cleaning module, please refer to fig. 1 to 7, the cleaning module includes: a drive assembly and a scrub roller 700. The transmission assembly is provided with a first output end 400 and a second output end 500, the output rotating speeds of the first output end 400 and the second output end 500 are different, wherein the output rotating speed of the second output end 500 is less than the output rotating speed of the first output end 400. The cleaning roller 700 is in transmission connection with the first output end 400 or the second output end 500, that is, the cleaning roller 700 can be driven by the first output end 400 to rotate or the second output end 500 to rotate.

It is understood that the above-described transmission assembly is not limited to the dual-gear output having the first output terminal 400 and the second output terminal 500, and a third output terminal, a fourth output terminal, a fifth output terminal, etc. may be provided on the basis of the first output terminal 400 and the second output terminal 500, whereby nested output of multiple speeds can be achieved. The following description mainly uses the dual-gear output as an example.

In one illustrative scenario, the cleaning module is a cleaning module of a sweeping robot. It should be noted that the cleaning module in the above example is a cleaning module of a sweeping robot, and is only one possible application scenario. In other possible and not explicitly excluded scenarios, the self-moving robot may also be a glass-cleaning robot, a hand-held floor washing machine, or the like.

The following description will be given mainly by taking the cleaning module as a cleaning module of a sweeping robot as an example. However, as can be seen from the above description, the scope of the embodiments of the present invention is not limited thereto.

In the present embodiment, referring to fig. 7 to 10, the transmission assembly includes: motor output unit 100, first output terminal 400, and second output terminal 500. The motor output unit 100 includes a motor output shaft 110, the first output end 400 is in transmission connection with the motor output shaft 110, and the second output end 500 is in transmission connection with the motor output shaft 110.

In order to make the output rotation speeds of the first output end 400 and the second output end 500 different, in this embodiment, the second output end 500 is in transmission connection with the motor output shaft 110 of the motor output unit 100 through the second speed reduction unit 300, and the output rotation speed of the second output end 500 can be smaller than the output rotation speed of the first output end 400 through the second speed reduction unit 300.

It is considered that if the first output terminal 400 is directly connected to the motor output shaft 110 in a transmission manner, the load of the motor output unit 100 is very large, which may cause great damage to the motor output unit 100. In the present embodiment, the first output end 400 is in transmission connection with the motor output shaft 110 of the motor output unit 100 through the first speed reduction unit 200.

In this embodiment, the first reduction unit 200 and the second reduction unit 300 are respectively connected to the motor output shaft 110, so that the torque output by the motor output unit 100 is respectively transmitted to the first reduction unit 200 and the second reduction unit 300 through the motor output shaft 110 and then output through the first output end 400 and the second output end 500, thereby realizing the dual-gear output of the motor output unit 100 to meet the requirements of different loads on different output rotation speeds, and having the advantage of convenient use.

Wherein the rotation axis of the first output end 400 is coaxially distributed with the rotation axis of the second output end 500. From this, cleaning module's overall structure is comparatively compact, and occupation space is little, elegant appearance, can high-efficient utilization sweep the space of robot bottom.

Regarding the structure of the first reduction unit 200 and the second reduction unit 300, in the present embodiment, the first reduction unit 200 is a planetary reduction gear train, and the second reduction unit 300 is an N-stage reduction gear set, where N is greater than 1. Therefore, double-gear rotating speed output is realized by combining the planetary reduction gear train with the N-level reduction gear set, double motors or variable speed motors are avoided to realize double-gear rotating speed output, and the use cost is effectively reduced.

In the embodiment, the adjustment of the output rotating speeds of different gears can be realized by increasing and decreasing the number of gears in the planetary reduction gear train and the N-stage reduction gear set and adjusting the number of gears in the planetary reduction gear train and the N-stage reduction gear set.

Further, the value of N is 2, i.e., the second reduction unit 300 is a two-stage reduction gear set. Of course, the second reduction unit 300 includes, but is not limited to, a two-stage reduction gear set, a three-stage reduction gear set, a four-stage reduction gear set, and the like. The following description will be given mainly taking the second reduction unit 300 as a two-stage reduction gear set as an example.

Referring to fig. 10 in conjunction with fig. 8 and 9, the first reduction unit 200 includes a sun gear 210 sleeved on the motor output shaft 110, a plurality of planetary gears 220 engaged with the sun gear 210, and a gear housing 230 engaged with the planetary gears 220. The sun gear 210 is fixed on the motor output shaft 110 and can rotate synchronously with the motor output shaft 110. The wheel housing 230 has a hollow interior, and the motor output shaft 110 extends into the wheel housing 230. The number of the planet gears 220 is three, the planet gears 220 are rotatably arranged in the wheel casing 230 through the planet gear shafts 221, and the planet gears 220 and the planet gear shafts 221 are arranged in a one-to-one correspondence mode. An inner ring 231 is formed in the hub 230 around the outer periphery of the planetary gear 220 and meshes with the planetary gear 220. The sun gear 210, planet gears 220 and inner ring gear 231 are all housed within a hollow cavity of the hub 230. The first output end 400 is fixedly disposed on the outer wall of the wheel housing 230.

The first output end 400 may be detachably fixed to the outer wall of the wheel housing 230, for example, by screws, fasteners, or the like; the first output end 400 may also be fixedly disposed on the outer wall of the wheel housing 230 by welding or integrally forming.

When the motor output shaft 110 rotates, the sun gear 210 is driven to rotate, the sun gear 210 drives the planet gear 220 to rotate, the planet gear 220 drives the wheel housing 230 to rotate, and finally the first output end 400 is driven by the wheel housing 230 to rotate.

In the present embodiment, referring to fig. 3, 5, 8 and 9, the second reduction unit 300 is located inside the wheel housing 230. As can be seen from the above, the wheel housing 230 covers the outside of the second reduction unit 300, the sun gear 210, the planet gear 220, and the inner ring gear 231, so that the second reduction unit 300, the sun gear 210, the planet gear 220, and the inner ring gear 231 can be protected, dust, moisture, and the like in the external environment can be prevented from entering the inside of the reduction unit, and the service lives of the first reduction unit 200 and the second reduction unit 300 are prolonged to a certain extent. In addition, the second reduction unit 300 is provided in the casing 230, so that the interior space of the casing 230 can be efficiently utilized, and the casing has advantages of compact structure and good appearance.

Referring to fig. 8 and 9, the second reduction unit 300 includes a sun gear 210, a first gear 310 engaged with the sun gear 210, a second gear 320 rotated in synchronization with the first gear 310, and a third gear 330 engaged with the second gear 320. Wherein the sun gear 210 extends in the axial direction of the motor output shaft 110, thereby being capable of meshing with the planet gears 220 and the first gear 310 simultaneously. It is understood that the sun gear 210 may also be a pair of gears spaced apart in the axial direction, one of the gears being in mesh with the planet gears 220 and the other being in mesh with the first gear 310.

The third gear 330 is fixedly connected to the second output end 500, so that the second output end 500 and the third gear 330 rotate synchronously. The end surface of the wheel housing 230, which is far away from the motor output unit 100, is provided with a through hole, the second output end 500 extends into the hollow cavity of the wheel housing 230 through the through hole, and the second output end 500 is rotatably disposed on the wheel housing 230 through a rotary bearing (not shown).

Referring to fig. 11, the first gear 310 and the second gear 320 are fixedly connected to form a whole and then can rotate synchronously. Wherein, the diameter of the addendum circle of the second gear 320 is smaller than that of the first gear 310.

Regarding the cleaning roller 700, in the present embodiment, the cleaning roller 700 is detachably connected to the first output terminal 400 or the second output terminal 500. Among them, the cleaning roller 700 is of the following three types: in the first case, the cleaning roller 700 is a sweeping roller for dry sweeping, and in this case, a dry sweeping member (not shown) is provided on the cleaning roller 700; in the second case, the cleaning roller 700 is a wet mop roller for wet mop, in which case, the cleaning roller 700 is provided with a wet mop element (not shown); in the third case, the scrub roller 700 is a dry-wet integrated scrub roller, in which case the scrub roller 700 is provided with both a dry-sweeping component (not shown) and a wet-mopping component (not shown).

In this embodiment, when the scrub roller 700 is provided with a dry sweeping component, and the scrub roller 700 requires a higher output speed, the scrub roller 700 is drivingly connected to the first output 400. When the scrub roller 700 is provided with a wet mop, the required output speed of the scrub roller 700 is low, and the scrub roller 700 is in driving connection with the second output 500. When the scrub roller 700 is provided with both dry-sweeping and wet-mopping elements, the scrub roller 700 is selectively drivingly connected to either the first output 400 or the second output 500. The above "selectively drivingly connected to the first output 400 or the second output 500" means: depending on the cleaning task performed by the cleaning roller 700, it is selected whether to connect to the first output 400 or the second output 500. Specifically, when the scrub roller 700 needs to perform a cleaning task, the scrub roller 700 is in transmission connection with the first output terminal 400; when the scrub roller 700 is required to perform a wet scrubbing task, the scrub roller 700 is drivingly connected to the second output 500.

Regarding the structure of the first output end 400 and the second output end 500, in the embodiment, please refer to fig. 7, the second output end 500 is in a shaft shape, and the first output end 400 is a ring structure disposed around the second output end 500.

When the cleaning roller 700 is a cleaning roller, please refer to fig. 3 and 4, a first mounting portion 710 for being in transmission fit with the first output end 400 is disposed on an end portion of the cleaning roller 700 close to the transmission assembly, the first mounting portion 710 is annular, and a central groove is defined by the first mounting portion 710.

When the first mounting part 710 is mounted, it is inserted into the first output terminal 400. Because the first output end 400 and the first mounting portion 710 are both annular, in the process of mounting the first mounting portion 710 on the first output end 400, the outer ring of the first mounting portion 710 may be matched with the inner ring of the first output end 400, or the inner ring of the first mounting portion 710 may be matched with the outer ring of the first output end 400. At this time, the second output end 500 idles in the central groove of the first mounting portion 710, the cleaning roller 700 rotates along with the rotation of the first output end 400, and the rotation speed of the cleaning roller 700 is relatively high, which is suitable for dry-cleaning the surface to be cleaned.

When the cleaning roller 700 is a wet mop roller, please refer to fig. 5 and 6, a second mounting portion 720 for being in transmission fit with the second output end 500 is disposed on an end portion of the cleaning roller 700 close to the transmission assembly, slots distributed along an axial direction of the cleaning roller 700 are disposed on the second mounting portion 720, and openings are formed on end surfaces of the slots close to the transmission assembly.

During installation, the second output end 500 is inserted into the slot, at the moment, the first output end 400 idles at the periphery of the second installation part 720, the cleaning roller 700 is driven by the second output end 500 to rotate, and the rotating speed of the cleaning roller 700 is relatively slow, so that the cleaning roller is suitable for wet-dragging a surface to be cleaned.

When the cleaning roller 700 is a dry-wet integrated cleaning roller, the end of the cleaning roller 700 close to the transmission component side is detachably provided with a first installation part 710 for being in transmission fit with the first output end 400 and a second installation part 720 for being in transmission fit with the second output end 500.

When the cleaning roller 700 needs to perform a dry-cleaning task, the first mounting part 710 is arranged on the cleaning roller 700, and the first mounting part 710 is used for being butted with the first output end 400; after the first mounting part 710 is connected with the first output end 400, the first output end 400 drives the cleaning roller 700 to rotate, so that the dry sweeping operation of the surface to be cleaned is realized.

After the cleaning roller 700 performs the dry sweeping task and the wet mopping task needs to be performed, at this time, the first mounting portion 710 is detached from the cleaning roller 700, the second mounting portion 720 is mounted on the cleaning roller 700, and then the second mounting portion 720 is inserted into the second output end 500.

In order to ensure the stability and reliability of the transmission between the cleaning roller 700 and the first and second output terminals 400 and 500, the first and second output terminals 400 and 500 are provided with a rotation stopping structure 600. The rotation stopping structure 600 can ensure that the cleaning roller 700 cannot rotate relative to the first output end 400 or the second output end 500 after the cleaning roller 700 is connected to the first output end 400 or the second output end 500. This ensures that the cleaning roller 700 rotates synchronously when the first output 400 or the second output 500 rotates.

As to the arrangement form of the rotation stopping structure 600, in an aspect, please refer to fig. 7, the rotation stopping structure 600 is a rotation stopping plane formed on the outer circumferential wall surfaces of the first output end 400 and the second output end 500. The rotation stop plane causes the radial cross-section of the first output end 400 and the second output end 500 to be non-circular, thereby preventing the cleaning roller 700 from rotating relative to the first output end 400 or the second output end 500.

In another embodiment, the rotation stopping structure 600 is a rib (not shown) disposed on the outer circumferential wall of the first output end 400 and the second output end 500, and the rib extends along the axial direction of the first output end 400 or the second output end 500. The function of the ribs is also to give the first output end 400 and the second output end 500 a non-circular shape in radial cross-section.

It can be understood that the rotation stopping structure 600 includes, but is not limited to, the above two schemes, and other structures capable of making the radial cross section of the first output end 400 and the second output end 500 be non-circular may be used, which are not described herein again.

In this embodiment, please refer to fig. 1 and fig. 2, the cleaning module further includes a roller seat 800, the roller seat 800 is hollow, and the cleaning roller 700 is rotatably disposed in a hollow cavity of the roller seat 800. The first end of the cleaning roller 700 near the transmission assembly extends to the outside of the roller base 800, and the first end is used for arranging the first installation part 710 or the second installation part 720.

Wherein the bottom of the roller holder 800 is open to form an exposing port 830 extending in the axial direction of the cleaning roller 700. When the cleaning roller 700 is operated, it can contact the cleaning surface through the exposure port 830. The top of the roller base 800 is further provided with a suction port 840, and the suction port 840 is used for connecting with a dirt inlet passage (not shown) of the mopping robot.

Further, in order to facilitate installation of the cleaning roller 700 into the roller holder 800, in the present embodiment, the roller holder 800 is provided to be divided up and down. Referring to fig. 2, the roller base 800 includes a lower base 810 and an upper base 820, and the lower base 810 is detachably connected to the upper base 820. Wherein, the exposed opening 830 is disposed at the bottom of the lower seat 810, and the suction opening 840 is disposed on the upper seat 820.

Example 2

The utility model also provides a transmission assembly, transmission assembly be in embodiment 1 transmission assembly.

Example 3

The utility model also provides a cleaning robot, cleaning robot include in embodiment 1 clean module or in embodiment 2 transmission assembly.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiment of the utility model, ordinary technical personnel in this field can make other different forms of change or change under the prerequisite of not making creative work, all should belong to the scope of protection of the utility model.

Claims (10)

1. A drive assembly, comprising:

a motor output unit;

the first output end is in transmission connection with the motor output unit; and

the second output end is in transmission connection with the motor output unit through a second speed reducing unit;

wherein the second reduction unit is configured such that the output rotation speed of the second output terminal is smaller than the output rotation speed of the first output terminal.

2. The drive assembly of claim 1,

the first output end is in transmission connection with the motor output unit through a first speed reduction unit;

the motor output unit comprises a motor output shaft, and the first speed reduction unit and the second speed reduction unit are connected with the motor output shaft respectively.

3. The drive assembly of claim 2,

the first speed reduction unit is a planetary speed reduction gear train, the second speed reduction unit is an N-level speed reduction gear set, and N is larger than 1;

wherein the rotation axis of the first output end is coaxially distributed with the rotation axis of the second output end.

4. The drive assembly of claim 2,

the first speed reduction unit comprises a sun gear sleeved on the output shaft of the motor, a planet gear meshed with the sun gear and a wheel casing meshed with the planet gear;

the sun wheel and the planet wheel are accommodated in the wheel casing, the planet wheel is rotatably arranged in the wheel casing, and an inner gear ring which is positioned on the periphery of the planet wheel and meshed with the planet wheel is formed in the wheel casing;

wherein, the first output end is fixedly arranged on the outer wall of the wheel casing.

5. The drive assembly of claim 4,

the second speed reduction unit is positioned in the wheel casing and comprises the sun gear, a first gear meshed with the sun gear, a second gear synchronously rotating with the first gear and a third gear meshed with the second gear;

wherein, the second output end is rotatably arranged on the wheel casing and is connected with the third gear.

6. The drive assembly of claim 1,

the first output end and the second output end are provided with rotation stopping structures;

the rotation stopping structure is a rotation stopping plane formed on the outer circumferential wall surfaces of the first output end and the second output end; alternatively, the first and second electrodes may be,

the rotation stopping structure is a rib arranged on the outer circumferential wall surfaces of the first output end and the second output end, and the rib extends along the axial direction of the first output end or the second output end.

7. A cleaning module, comprising:

the transmission assembly is provided with a first output end and a second output end;

the cleaning roller is in transmission connection with the first output end or the second output end;

wherein the transmission assembly is as claimed in any one of claims 1 to 6.

8. The cleaning module of claim 7,

the cleaning roller is detachably connected with the first output end or the second output end;

when the cleaning roller is provided with a dry sweeping element, the cleaning roller is in transmission connection with the first output end; alternatively, the first and second electrodes may be,

when the cleaning roller is provided with a wet-dragging element, the cleaning roller is in transmission connection with the second output end; alternatively, the first and second electrodes may be,

when the cleaning roller is provided with a dry sweeping element and a wet sweeping element, the cleaning roller is selectively in transmission connection with the first output end or the second output end.

9. The cleaning module of claim 7 or 8,

the second output end is in a shaft shape, and the first output end is in an annular structure annularly arranged at the periphery of the second output end;

when the cleaning roller is provided with a dry sweeping element, a first mounting part which is used for being matched with the first output end in a transmission way is arranged at the end part of the cleaning roller close to the transmission component side, the first mounting part is annular, and the second output end idles in a central groove of the first mounting part; alternatively, the first and second electrodes may be,

when the cleaning roller is provided with a wet-dragging element, a second mounting part which is used for being in transmission fit with a second output end is arranged at the end part of the cleaning roller close to the transmission assembly side, slots which are distributed along the axial direction of the cleaning roller are arranged on the second mounting part, the second output end is inserted into the slots, and the first output end idles at the periphery of the second mounting part; alternatively, the first and second electrodes may be,

when the cleaning roller is equipped with and sweeps the component futilely and drag the component with wet, the cleaning roller is close to can dismantle on the tip of drive assembly side dispose be used for with first output transmission complex first installation department with be used for with second output transmission complex second installation department.

10. A cleaning robot comprising a drive assembly according to any of claims 1-6 or a cleaning module according to any of claims 7-9.

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