Brush roller connecting mechanism and brush cleaning robot

Abstract

The utility model discloses a brush roller connecting mechanism and a brush cleaning robot. The brush roller connecting mechanism is used for the brush cleaning robot, and the brush cleaning robot comprises an upper opening driving assembly and a lower opening driving assembly which are located at the two ends of the brush cleaning robot. The brush roller connecting mechanism comprises a brush roller, an upper opening input shaft assembly and a lower opening input shaft assembly, the upper opening input shaft assembly and the lower opening input shaft assembly are used for connecting the brush roller between the upper opening driving assembly and the lower opening driving assembly, and the upper opening input shaft assembly comprises a sliding connecting piece. The sliding connecting piece can slide relative to at least one of the upper opening driving assembly and the brush roller in the axis direction of the brush roller so as to avoid downward pulling force applied by the brush roller to the upper opening driving assembly in the axis direction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic cleaning, in particular to a brush roller connecting mechanism and a brush cleaning robot. BACKGROUND

[0002] A photovoltaic power station is a device for converting solar energy into electric energy. The power generation efficiency and service life of the photovoltaic power station are greatly affected by dirt, so it is particularly important to clean the photovoltaic power station regularly or on demand. In order to facilitate the cleaning of the photovoltaic power station, the industry has developed cleaning equipment such as photovoltaic cleaning robots. A brush type cleaning robot in the prior art includes a brush and a motor provided at one end or both ends of the brush, which drives the brush to roll on the photovoltaic panel to clean the dust on the photovoltaic panel. In actual use, the cleaning robot is often arranged obliquely on the photovoltaic panel, and the brush often has an external force pulling the driving components such as the motor connected to its upper end in the axial direction under the action of gravity, so that the driving components such as the motor at its upper end not only provide circumferential rotation force, but also bear axial tension force, the stress is complex, resulting in poor transmission reliability and short service life.

[0003] Therefore, it is necessary to provide a technical scheme to overcome the shortcomings of the prior art. SUMMARY

[0004] The present application provides a brush roller connecting mechanism and a brush cleaning robot, which makes the stress of the driving component single, improves the reliability and service life of the driving component transmission.

[0005] The present application is implemented by the following technical scheme: a brush roller connecting mechanism for a brush cleaning robot, the brush cleaning robot including upper and lower driving components at both ends thereof, the brush roller connecting mechanism including a brush roller and an upper input shaft assembly and a lower input shaft assembly for connecting the brush roller between the upper and lower driving components, wherein the upper input shaft assembly includes a sliding connector which can slide relative to at least one of the upper driving component and the brush roller in the axial direction of the brush roller to avoid the brush roller applying a downward tension force to the upper driving component in the axial direction.

[0006] As a further improved technical scheme of the present application, the sliding connector is connected to the upper driving component and the brush roller through a stud, a long strip-shaped sliding groove is formed on the sliding connector, and the stud connecting the upper driving component and the sliding connector or the stud connecting the brush roller and the sliding connector can slide in the long strip-shaped sliding groove.

[0007] As a further improved technical solution of the present application, one end of the sliding connecting piece is connected and fixed with the upper opening driving assembly, and the other end of the sliding connecting piece is connected with the brush roller through the long strip-shaped sliding groove.

[0008] As a further improved technical solution of the present application, the sliding connecting piece is a connecting pipe.

[0009] As a further improved technical solution of the present application, the lower opening input shaft assembly comprises a lower opening input shaft and a tapered roller bearing sleeved on the lower opening input shaft, and the tapered roller bearing is sleeved on the end of the lower opening input shaft away from the brush roller.

[0010] As a further improved technical solution of the present application, the lower opening input shaft is connected with the brush roller through a lower opening connecting pipe, the lower opening connecting pipe is sleeved on the end of the lower opening input shaft close to the brush roller, and the lower opening input shaft assembly further comprises a deep groove ball bearing sleeved on the lower opening input shaft, and the deep groove ball bearing has a spacing with the lower opening connecting pipe.

[0011] As a further improved technical solution of the present application, the brush roller comprises multiple sections, the brush roller connecting mechanism comprises a middle connecting shaft, adjacent two sections of the brush roller are connected through the middle connecting shaft, two ends of the middle connecting shaft are respectively connected and fixed with the adjacent two sections of the brush roller, and a sliding spacing is arranged between the adjacent two sections of the brush roller.

[0012] As a further improved technical solution of the present application, a middle supporting piece is sleeved on the middle connecting shaft, and the middle supporting piece is used for upwardly lifting the middle connecting shaft.

[0013] As a further improved technical solution of the present application, the middle supporting piece comprises a middle bearing, and the thickness of the middle bearing is less than the width of the sliding spacing.

[0014] The present application is also implemented through the following technical solution: a brush cleaning robot comprising the brush roller connecting mechanism as described above.

[0015] The brush roller connecting mechanism provided by the present application comprises a brush roller and upper opening input shaft assembly and lower opening input shaft assembly for connecting the brush roller between the upper opening driving assembly and the lower opening driving assembly, the upper opening input shaft assembly comprises a sliding connecting piece, and the sliding connecting piece can relatively slide along the axis direction of the brush roller relative to at least one of the upper opening driving assembly and the brush roller; thus, the downward pulling force of the brush roller applied to the upper opening driving assembly along the axis direction can be avoided, the stress of the driving assembly is single, and the reliability and service life of the transmission of the driving assembly are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a perspective assembly view of an embodiment of the brush cleaning robot of the present application.

[0017] Figure 2 is an exploded perspective view of an embodiment of the brush cleaning robot of the present application.

[0018] Figure 3 is a partial enlarged sectional view of the upper mouth driving assembly in an embodiment of the brush cleaning robot of the present application.

[0019] Figure 4 is a partial enlarged sectional view of the lower mouth driving assembly in an embodiment of the brush cleaning robot of the present application.

[0020] Figure 5 is a structural schematic view of the upper mouth driving assembly in an embodiment of the brush cleaning robot of the present application.

[0021] The reference signs are as follows: 100, brush cleaning robot; 1, walking beam; 2, upper mouth driving assembly; 21, upper mouth mounting seat; 22, driving motor; 231, upper mouth front wheel; 232, upper mouth side wheel; 241, upper mouth shaft transmission gear; 242, upper mouth chain wheel; 243, upper mouth chain; 244, upper mouth guide wheel; 245, upper mouth bevel gear set; 3, lower mouth driving assembly; 4, brush roller connecting mechanism; 41, brush roller; 411, shaft cylinder; 412, brush cylinder; 42, upper mouth input shaft assembly; 421, upper mouth input shaft; 422, sliding connecting piece; 4221, long strip-shaped sliding groove; 43, lower mouth input shaft assembly; 431, lower mouth input shaft; 432, lower mouth connecting pipe; 433, tapered roller bearing; 434, deep groove ball bearing; 44, middle connecting shaft; 45, middle support; 5, control box. DETAILED DESCRIPTION

[0022] In order to have a more clear understanding of the technical features, objects and effects of the present application, the specific embodiments of the present application will be described in detail with reference to the accompanying drawings.

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. The technical features in the following embodiments can be combined with each other without conflict. The following described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Please refer to Figures 1 to 5As shown, the present application provides a brush roller connecting mechanism 4 and a brush cleaning robot 100. The brush cleaning robot 100 is placed on a photovoltaic array, and is used to move on the photovoltaic array to clean dust, debris and the like on the photovoltaic array. The brush cleaning robot 100 comprises an upper mouth driving assembly 2, a lower mouth driving assembly 3, a walking beam 1, a brush roller connecting mechanism 4 and a control box 5.

[0025] The brush roller connecting mechanism 4 is used on the brush cleaning robot 100, the brush cleaning robot 100 comprises the upper mouth driving assembly 2 and the lower mouth driving assembly 3 at both ends thereof, and the brush roller connecting mechanism 4 comprises a brush roller 41 and an upper mouth input shaft assembly 42 and a lower mouth input shaft assembly 43 for connecting the brush roller 41 between the upper mouth driving assembly 2 and the lower mouth driving assembly 3. The upper mouth input shaft assembly 42 comprises a sliding connecting piece 422, which can relatively slide along the axial direction of the brush roller 41 relative to at least one of the upper mouth driving assembly 2 and the brush roller 41, so as to avoid the downward pulling force of the brush roller 41 applied to the upper mouth driving assembly 2 along the axial direction.

[0026] The brush roller connecting mechanism 4 provided by the present application comprises a brush roller 41 and an upper mouth input shaft assembly 42 and a lower mouth input shaft assembly 43 for connecting the brush roller 41 between the upper mouth driving assembly 2 and the lower mouth driving assembly 3, and the upper mouth input shaft assembly 42 comprises a sliding connecting piece 422, which can relatively slide along the axial direction of the brush roller 41 relative to at least one of the upper mouth driving assembly 2 and the brush roller 41. In this way, the downward pulling force of the brush roller 41 applied to the upper mouth driving assembly 2 along the axial direction can be avoided, so that the stress of the driving assembly is single, and the reliability and service life of the driving assembly transmission are improved.

[0027] Please refer to Figure 2 and Figure 3As shown, the sliding connecting piece 422 is connected with the upper opening driving assembly 2 and the brush roller 41 through studs, and a long strip sliding groove 4221 is formed on the sliding connecting piece 422. The studs connecting the upper opening driving assembly 2 and the sliding connecting piece 422 or the studs connecting the brush roller 41 and the sliding connecting piece 422 can slide in the long strip sliding groove 4221. In the embodiment, the sliding connecting piece 422 is a connecting pipe, a circular through hole is formed on the pipe near one end, and a long strip sliding groove 4221 is formed on the pipe near the other end. One end of the sliding connecting piece 422 is connected with the upper opening driving assembly 2 through a stud penetrating the circular through hole, and the other end of the sliding connecting piece 422 is connected with the brush roller 41 through a stud penetrating the long strip sliding groove 4221. In the embodiment, the upper opening input shaft assembly 42 includes the upper opening input shaft 421 and the sliding connecting piece 422. The upper opening input shaft 421 is connected with the motor shaft of the driving motor 22, and the sliding connecting piece 422 is fixed with the upper opening input shaft 421, so as to be fixed relative to the upper opening driving assembly 2. The brush roller 41 can slide relative to the sliding connecting piece 422, so as to slide relative to the upper opening driving assembly 2. In other embodiments, the sliding connecting piece 422 can be arranged to slide relative to the upper opening input shaft 421, and be fixed with the brush roller 41 or be in sliding connection with the brush roller 41. In summary, the relative sliding between the brush roller 41 and the upper opening driving assembly 2 is realized through the sliding connecting piece 422, which can slide between the sliding connecting piece 422 and the brush roller 41 or slide between the sliding connecting piece 422 and the upper opening driving assembly 2.

[0028] As shown in FIG. 1, the upper opening driving assembly 2 includes a driving motor 22 and an upper opening input shaft assembly 42. The driving motor 22 is arranged on the upper opening driving assembly 2, and the upper opening input shaft assembly 42 is arranged on the driving motor 22. The driving motor 22 is connected with the upper opening input shaft assembly 42 through a belt, and the upper opening input shaft assembly 42 is connected with the brush roller connecting mechanism 4 through a belt. Figure 4 As shown in FIG. 1, the lower opening input shaft assembly 43 includes a lower opening input shaft 431 and a tapered roller bearing 433 sleeved on the lower opening input shaft 431, and the tapered roller bearing 433 is sleeved on the end of the lower opening input shaft 431 away from the brush roller 41. Since the upper end of the brush roller connecting mechanism 4 is axially slidably connected, it does not exert a pulling force on the upper opening driving assembly 2, and its gravity is borne by the lower opening driving assembly 3. By arranging the tapered roller bearing 433, the axial pressure from the brush roller connecting mechanism 4 can be well borne, and the deep groove ball bearing commonly used is easily damaged by disengagement when applied to the end of the lower opening input shaft 431 away from the brush roller 41. Further, as shown in FIG. 1, the lower opening input shaft 431 is connected with the brush roller 41 through a lower opening connecting pipe 432, the lower opening connecting pipe 432 is sleeved on the end of the lower opening input shaft 431 close to the brush roller 41, the lower opening input shaft assembly 43 further includes a deep groove ball bearing 434 sleeved on the lower opening input shaft 431, and the deep groove ball bearing 434 has a spacing with the lower opening connecting pipe 432. The deep groove ball bearing 434 does not bear axial force. Figure 4 As shown in FIG. 1, the lower opening input shaft assembly 43 includes a lower opening input shaft 431 and a tapered roller bearing 433 sleeved on the lower opening input shaft 431, and the tapered roller bearing 433 is sleeved on the end of the lower opening input shaft 431 away from the brush roller 41. Since the upper end of the brush roller connecting mechanism 4 is axially slidably connected, it does not exert a pulling force on the upper opening driving assembly 2, and its gravity is borne by the lower opening driving assembly 3. By arranging the tapered roller bearing 433, the axial pressure from the brush roller connecting mechanism 4 can be well borne, and the deep groove ball bearing commonly used is easily damaged by disengagement when applied to the end of the lower opening input shaft 431 away from the brush roller 41. Further, as shown in FIG. 1, the lower opening input shaft 431 is connected with the brush roller 41 through a lower opening connecting pipe 432, the lower opening connecting pipe 432 is sleeved on the end of the lower opening input shaft 431 close to the brush roller 41, the lower opening input shaft assembly 43 further includes a deep groove ball bearing 434 sleeved on the lower opening input shaft 431, and the deep groove ball bearing 434 has a spacing with the lower opening connecting pipe 432. The deep groove ball bearing 434 does not bear axial force.

[0029] As shown in FIG. 1, the lower opening input shaft assembly 43 includes a lower opening input shaft 431 and a tapered roller bearing 433 sleeved on the lower opening input shaft 431, and the tapered roller bearing 433 is sleeved on the end of the lower opening input shaft 431 away from the brush roller 41. Since the upper end of the brush roller connecting mechanism 4 is axially slidably connected, it does not exert a pulling force on the upper opening driving assembly 2, and its gravity is borne by the lower opening driving assembly 3. By arranging the tapered roller bearing 433, the axial pressure from the brush roller connecting mechanism 4 can be well borne, and the deep groove ball bearing commonly used is easily damaged by disengagement when applied to the end of the lower opening input shaft 431 away from the brush roller 41. Further, as shown in FIG. 1, the lower opening input shaft 431 is connected with the brush roller 41 through a lower opening connecting pipe 432, the lower opening connecting pipe 432 is sleeved on the end of the lower opening input shaft 431 close to the brush roller 41, the lower opening input shaft assembly 43 further includes a deep groove ball bearing 434 sleeved on the lower opening input shaft 431, and the deep groove ball bearing 434 has a spacing with the lower opening connecting pipe 432. The deep groove ball bearing 434 does not bear axial force. Figure 2As shown, the brush roller 41 comprises multiple sections, the brush roller connecting mechanism 4 comprises a middle connecting shaft 44, two adjacent brush rollers 41 are connected through the middle connecting shaft 44, the two ends of the middle connecting shaft 44 are respectively connected and fixed with the two adjacent brush rollers 41, and a sliding interval is arranged between the two adjacent brush rollers 41, so that the multiple brush rollers 41 can slide downward as a whole. A middle support 45 is sleeved on the middle connecting shaft 44, and the middle support 45 is used for upwardly lifting the middle connecting shaft 44. The upper end of the middle support 45 can be fixed on the walking beam 1. The middle support 45 comprises a middle bearing, and the thickness of the middle bearing is less than the width of the sliding interval.

[0030] Since in actual use, the photovoltaic array is usually arranged in an inclined manner to match the solar elevation angle and maximize the acquisition of solar energy. The brush cleaning robot arranged on the photovoltaic array is also arranged in an inclined manner, wherein the upper end is the upper opening and the lower end is the lower opening. In the embodiment, the brush roller connecting mechanism 4 is arranged to float downward to the lower opening under the action of gravity, that is, the brush roller connecting mechanism 4 and the driving motor 22 in the upper opening driving assembly 2 can relatively slide in the axial direction, so as to avoid that the brush roller connecting mechanism 4 exerts a downward pulling force on the driving motor 22, causing the driving motor 22 to be subjected to complex stress, resulting in poor transmission reliability of the driving motor 22 and affecting the service life of the driving motor 22. In the embodiment, the motor shaft of the driving motor 22 is only subjected to a rotating force in the circumferential direction because the brush roller connecting mechanism 4 does not exert a pulling force on the motor shaft in the axial direction, and the stress is single and the transmission reliability is better. Specifically, the brush roller connecting mechanism 4 comprises a shaft cylinder 411 and a brush cylinder 412 located outside the shaft cylinder 411, and the motor shaft of the driving motor 22 is relatively fixed in the rotating direction of the motor shaft and can relatively slide in the axial direction of the motor shaft between the motor shaft and the shaft cylinder 411.

[0031] Since the brush roller connecting mechanism 4 does not exert a pulling force on the driving motor 22 in the axial direction, the brush roller connecting mechanism 4 can freely slide downward under the action of gravity, so that part of the gravity of the brush roller connecting mechanism 4 falls on the lower opening input shaft assembly connected with the lower end of the brush roller connecting mechanism 4. To better bear the part of the force, in the embodiment, the lower opening input shaft assembly comprises a lower opening input shaft 431 and a tapered roller bearing 433 sleeved on the lower opening input shaft 431.

[0032] In the embodiment, the brush roller 41 comprises multiple shaft cylinders 411, the multiple shaft cylinders 411 are connected through the middle connecting shaft 44, the middle connecting shaft 44 is sleeved with the middle support 45, and the upper end of the middle support 45 is fixed on the walking beam 1. In the embodiment, two shaft cylinders 411 are taken as an example, and more shaft cylinders 411 can be taken in other embodiments. In the embodiment, the brush cylinder 412 is fixed with the shaft cylinder 411 through a pin member, and in other embodiments, the brush cylinder 412 and the shaft cylinder 411 can be an integral piece.

[0033] The following refers to Figure 5 The structure of the upper mouth driving assembly 2 in this embodiment is specifically described. The upper mouth driving assembly 2 comprises an upper mouth mounting seat 21, and a driving motor 22, an upper mouth walking mechanism and an upper mouth transmission mechanism mounted on the upper mouth mounting seat 21.

[0034] The upper mouth mounting seat 21 can be a bracket or a frame composed of one or more mounting plates, which is used for mounting the driving motor 22, the upper mouth walking mechanism and the upper mouth transmission mechanism. The specific structure of the upper mouth mounting seat 21 is not limited in this application. The upper mouth transmission mechanism comprises an upper mouth shaft transmission gear 241, an upper mouth chain wheel 242 and an upper mouth chain 243. The upper mouth shaft transmission gear 241 is coaxially arranged with the motor shaft of the driving motor 22 and the rotating axis of the rotating shaft of the brush roller connecting mechanism 4, and the upper mouth shaft transmission gear 241 is fixed relative to the motor shaft and the rotating shaft of the brush roller connecting mechanism 4 in the circumferential direction of rotation. The upper mouth shaft transmission gear 241 can be directly or indirectly connected with the motor shaft through connection modes such as spline, pin, D-shaped or polygonal column hole cooperation, which can ensure synchronous rotation driven by the motor shaft.

[0035] The upper mouth transmission mechanism further comprises an upper mouth guide wheel 244, which is correspondingly arranged with the upper mouth shaft transmission gear 241, and a through gap is formed between the two. The upper mouth chain 243 passes through the through gap. The upper mouth guide wheel 244 and the upper mouth shaft transmission gear 241 tension the upper mouth chain 243 to the same side. A section of the upper mouth chain 243 is clamped between the upper mouth guide wheel 244 and the upper mouth shaft transmission gear 241 and is tensioned, which can avoid loosening of the upper mouth chain 243 and make power transmission more reliable.

[0036] The upper mouth walking mechanism comprises an upper mouth front wheel 231 and an upper mouth side wheel 232. The upper mouth front wheel 231 is a wheel rolling on the front surface of the upper part of the photovoltaic array, and the upper mouth side wheel 232 is a wheel rolling on the side surface of the upper part of the photovoltaic array. The upper mouth side wheel 232 can function as side pressure and hanging, preventing the brush cleaning robot 100 from slipping downward on the inclined photovoltaic array. In an embodiment, the upper mouth front wheel 231 and the upper mouth side wheel 232 are both rubber wheels. The upper mouth chain wheel 242 drives the upper mouth front wheel 231 to rotate through the upper mouth front wheel shaft, and the upper mouth chain wheel 242 drives the upper mouth side wheel 232 to rotate through the vertically meshing upper mouth bevel gear set 245 and the upper mouth side wheel shaft. The upper mouth bevel gear set 245 comprises two bevel gears, i.e. umbrella-shaped gears, which can realize power transmission in the vertical direction.

[0037] The structure of the lower mouth driving assembly 3 in this embodiment is described in detail below. The lower mouth driving assembly 3 includes a lower mouth mounting seat, a lower mouth input shaft assembly, a lower mouth walking mechanism and a lower mouth transmission mechanism mounted on the lower mouth mounting seat, and the lower mouth input shaft assembly drives the lower mouth walking mechanism to move through the lower mouth transmission mechanism. The composition of the lower mouth driving assembly 3 is roughly similar to that of the upper mouth driving assembly 2. The main difference is that the lower mouth driving assembly 3 does not include the driving motor 22. The lower mouth driving assembly 3 is moved by the power transmitted by the brush roller connecting mechanism 4. Specifically, the lower mouth transmission mechanism includes a lower mouth shaft transmission gear, at least two lower mouth sprockets and a lower mouth chain. The lower mouth shaft transmission gear is coaxially arranged with the lower mouth input shaft assembly, the lower mouth sprockets are meshingly connected to the inner side of the lower mouth chain, and the lower mouth shaft transmission gear 341 is meshingly connected to the outer side of the lower mouth chain. The central shaft of the lower mouth sprocket is parallel to the central shaft of the lower mouth shaft transmission gear, and the rotation direction of the lower mouth sprocket is opposite to that of the lower mouth shaft transmission gear. The lower mouth transmission mechanism includes a lower mouth guide wheel, which is arranged correspondingly with the lower mouth shaft transmission gear, and a through gap is formed between the two, through which the lower mouth chain passes. The lower mouth guide wheel and the lower mouth shaft transmission gear tension the lower mouth chain to the same side. The lower mouth walking mechanism includes a lower mouth front wheel and a lower mouth side wheel. The lower mouth sprocket drives the lower mouth front wheel to rotate through the lower mouth front wheel shaft, and the lower mouth sprocket drives the lower mouth side wheel to rotate through the vertically meshing lower mouth bevel gear set and the lower mouth side wheel shaft. The other parts of the lower mouth driving assembly 3 not mentioned can be understood with reference to the upper mouth driving assembly 2.

[0038] The movement process of the whole machine is as follows: the movement of the brush cleaning robot 100 is controlled by the control box 5, which controls the driving motor 22 to work, the motor shaft rotates, and the motor shaft drives the upper mouth shaft transmission gear 241, the brush roller connecting mechanism 4 and the lower mouth shaft transmission gear to rotate synchronously; the upper mouth shaft transmission gear 241 drives the upper mouth sprocket 242 to rotate through the upper mouth chain 243, the lower mouth shaft transmission gear drives the lower mouth sprocket to rotate through the lower mouth chain, and the upper mouth sprocket 242 and the lower mouth sprocket 342 drive the brush cleaning robot 100 to move forward. Since the overall forward movement of the brush cleaning robot 100, the rotation direction of the brush roller connecting mechanism 4 is opposite to the forward direction, the tangential direction of the contact surface of the reverse-rotating brush roller connecting mechanism 4 when rolling in contact with the photovoltaic array is forward, so that the dust on the photovoltaic array is pushed forward. And the contact between the brush roller connecting mechanism 4 and the photovoltaic array has a certain resistance to the forward movement of the brush cleaning robot 100, which is beneficial to the brush roller connecting mechanism 4 to form a sliding shear effect at the contact with the photovoltaic array, and the dust on the photovoltaic array is cleaned more cleanly and completely. The dust, debris and other things pushed forward finally fall from the gap between the photovoltaic panels of the photovoltaic array or the edge of the most end photovoltaic panel.

[0039] The present application is illustrated by way of several specific embodiments, and those skilled in the art will appreciate that various modifications and equivalents can be made without departing from the scope of the present application. In addition, various modifications can be made to the present application for specific situations or specific circumstances without departing from the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed, but should include all embodiments falling within the scope of the claims of the present application.

Claims

1. A brush roller connecting mechanism for use on a brush cleaning robot, the brush cleaning robot comprising an upper drive assembly and a lower drive assembly located at both ends thereof, characterized in that, The brush roller connecting mechanism comprises a brush roller and an upper port input shaft assembly and a lower port input shaft assembly for connecting the brush roller between the upper port driving assembly and the lower port driving assembly, wherein the upper port input shaft assembly comprises a sliding connector capable of sliding relative to at least one of the upper port driving assembly and the brush roller along the axial direction of the brush roller to avoid the brush roller exerting a downward pulling force on the upper port driving assembly along the axial direction.

2. The brush roll coupling mechanism of claim 1, wherein, The sliding connector is connected to the upper port driving assembly and the brush roller by studs, and a long strip-shaped sliding groove is formed on the sliding connector, and the studs connecting the upper port driving assembly and the sliding connector or the studs connecting the brush roller and the sliding connector are capable of sliding in the long strip-shaped sliding groove.

3. The brush roll coupling mechanism of claim 2, wherein, One end of the sliding connector is connected and fixed to the upper port driving assembly, and the other end of the sliding connector is connected to the brush roller through the long strip-shaped sliding groove.

4. The brush roll coupling mechanism of claim 1, wherein, The sliding connector is a connecting pipe.

5. The brush roll coupling mechanism of claim 1, wherein, The lower port input shaft assembly comprises a lower port input shaft and a tapered roller bearing sleeved on the lower port input shaft, and the tapered roller bearing is sleeved on the end of the lower port input shaft away from the brush roller.

6. The brush roll coupling mechanism of claim 5, wherein, The lower port input shaft is connected to the brush roller through a lower port connecting pipe, the lower port connecting pipe is sleeved on the end of the lower port input shaft close to the brush roller, the lower port input shaft assembly further comprises a deep groove ball bearing sleeved on the lower port input shaft, and the deep groove ball bearing has a spacing with the lower port connecting pipe.

7. The brush roll coupling mechanism of claim 1, wherein, The brush roller comprises multiple sections, the brush roller connecting mechanism comprises a middle connecting shaft, adjacent two sections of the brush roller are connected through the middle connecting shaft, both ends of the middle connecting shaft are respectively connected and fixed to adjacent two sections of the brush roller, and a sliding spacing is arranged between adjacent two sections of the brush roller.

8. The brush roll coupling mechanism of claim 7, wherein, A middle support is sleeved on the middle connecting shaft, and the middle support is used for upwardly lifting the middle connecting shaft.

9. The brush roll coupling mechanism of claim 8, wherein, The middle support comprises a middle bearing, and the thickness of the middle bearing is less than the width of the sliding spacing.

10. A brush cleaning robot, characterized by The brush roller connecting mechanism comprises a brush roller and an upper port input shaft assembly and a lower port input shaft assembly for connecting the brush roller between the upper port driving assembly and the lower port driving assembly, wherein the upper port input shaft assembly comprises a sliding connector capable of sliding relative to at least one of the upper port driving assembly and the brush roller along the axial direction of the brush roller to avoid the brush roller exerting a downward pulling force on the upper port driving assembly along the axial direction.

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