阅读说明：本技术 一种以单电机同时带动驱动轮和叶轮的清洁机器人 (Cleaning robot with single motor for simultaneously driving wheel and impeller ) 是由 曹鑫 李伟锦 于 2019-11-21 设计创作，主要内容包括：本发明公开了一种以单电机同时带动驱动轮和叶轮的清洁机器人,包括电机输出轴、驱动轮和叶轮,叶轮设有第一转轴,驱动轮设有第二转轴,电机输出轴与第一转轴之间连有连接器,连接器与第二转轴之间连有减速器。清洁机器人借着驱动轮完成进退和转弯动作,靠着内部的叶轮产生的负压使垃圾进入内部的滤芯并将净化的水或空气排出设备。本发明的叶轮电机输出轴通过连接器带动第一转轴和叶轮作较高速度的转动,而连接器能通过减速器带动驱动轮作低速转动,因此本发明仅使用一个电机就能够同时带动叶轮和驱动轮,并且能使驱动轮和叶轮产生不同的转速。本发明的优点是：因仅使用一个电机,使设备结构紧凑、布局合理、运行平稳、成本低、自重轻。(The invention discloses a cleaning robot for simultaneously driving a driving wheel and an impeller by a single motor, which comprises a motor output shaft, the driving wheel and the impeller, wherein the impeller is provided with a first rotating shaft, the driving wheel is provided with a second rotating shaft, a connector is connected between the motor output shaft and the first rotating shaft, and a speed reducer is connected between the connector and the second rotating shaft. The cleaning robot completes the advancing and retreating and turning actions by the driving wheel, and the negative pressure generated by the impeller against the inside enables the garbage to enter the filter element inside and discharges the purified water or air out of the equipment. The output shaft of the impeller motor drives the first rotating shaft and the impeller to rotate at a higher speed through the connector, and the connector can drive the driving wheel to rotate at a low speed through the speed reducer, so that the impeller motor can drive the impeller and the driving wheel simultaneously by using only one motor, and the driving wheel and the impeller can generate different rotating speeds. The invention has the advantages that: because only one motor is used, the device has compact structure, reasonable layout, stable operation, low cost and light dead weight.)

1. A cleaning robot which drives a driving wheel and an impeller simultaneously by a single motor comprises the driving wheel (51), the impeller (41), a cavity (512) for accommodating the impeller (41), and a discharge port (511) for communicating the cavity (512) with the outside, and is characterized in that: the impeller (41) is provided with a first rotating shaft (42), and the driving wheel (51) is provided with a second rotating shaft (52); a first channel (521) is arranged between the cavity (512) and the filter element (6); a connector (2) is connected between the motor output shaft (11) and the first rotating shaft (42), and a speed reducer (3) is connected between the connector (2) and the second rotating shaft (52).

2. The cleaning robot as claimed in claim 1, wherein the driving wheel and the impeller are driven by a single motor, and wherein: the connector (2) is a fixed part for synchronously connecting the output shaft (11) of the motor with the first rotating shaft (42), the second rotating shaft (52) is parallel to the first rotating shaft (42), and the speed reducer (3) is a planetary gear speed reducing mechanism.

3. The cleaning robot as claimed in claim 1, wherein the driving wheel and the impeller are driven by a single motor, and wherein: the connector (2) is a fixing part for synchronously connecting the output shaft (11) of the motor with the first rotating shaft (42), the second rotating shaft (52) is parallel to the first rotating shaft (42), and the speed reducer (3) is a belt pulley.

4. The cleaning robot as claimed in claim 1, wherein the driving wheel and the impeller are driven by a single motor, and wherein: the connector (2) is a planetary gear speed reducing mechanism which is connected with an output shaft (11) of the motor and a first rotating shaft (42), the second rotating shaft (52) is parallel to the first rotating shaft (42), and the speed reducer (3) is a belt pulley.

5. The cleaning robot as claimed in claim 1, wherein the driving wheel and the impeller are driven by a single motor, and wherein: the second rotating shaft (52) and the first rotating shaft (42) are positioned on the same axis, and the speed reducer (3) is a planetary gear speed reducing mechanism.

6. The cleaning robot as claimed in claim 5, wherein the driving wheel and the impeller are driven by a single motor, and wherein: the second rotating shaft (52) is sleeved on the periphery of the first rotating shaft (42), the cavity (512) is positioned in the driving wheel (51), and the discharge port (511) is positioned on the driving wheel (51); the first channel (521) is positioned on the second rotating shaft (52); a second channel (522) which is communicated with the first channel (521) and the cavity (512) is arranged in the second rotating shaft (52); the planetary gear speed reducing mechanism is provided with a shaft hole for rotating the first rotating shaft (42).

7. The cleaning robot as claimed in claim 6, wherein the driving wheel and the impeller are driven by a single motor, and wherein: the planetary gear speed reducing mechanism comprises a first planetary gear speed reducer (31) and a second planetary gear speed reducer (32), the second planetary gear speed reducer (32) comprises a fixed second internal gear ring (323), a second planetary gear (322) and a second sun gear (321) which are arranged in the second internal gear ring (323), and a second planet carrier (324) which is arranged between the second sun gear (321) and the first planetary gear speed reducer (31); the first planetary gear reducer (31) comprises a first sun gear (311) arranged on a second planet carrier (324), a first ring gear (313) synchronously connected with a second rotating shaft (52), and a first planet gear (312) for arranging the rotating shaft on a second ring gear (323); the connector (2) comprises a third sun gear (21) fixed on the motor output shaft (11), a third planet gear (22) in meshing transmission with the third sun gear (21) and a second annular gear (323), and a fourth planet carrier (23) arranged between the third sun gear (21) and a second planet gear reducer (32), wherein the second sun gear (321) is arranged on the fourth planet carrier (23), and a first rotating shaft (42) is fixedly arranged on the fourth planet carrier (23).

8. The cleaning robot as claimed in claim 7, wherein the driving wheel and the impeller are driven by a single motor, and wherein: a fifth planet carrier (24) fixed on a fourth planet carrier (23) is arranged between the third planet wheel (22) and the motor (1); a third planet carrier (325) fixed on the second planet carrier (324) is arranged between the second planet wheel (322) and the fourth planet carrier (23); and a first planet carrier (314) fixed on the second inner gear ring (323) is arranged between the first planet wheel (312) and the impeller (41).

9. A cleaning robot as claimed in any one of claims 7 or 8, wherein the cleaning robot comprises a single motor for driving the driving wheel and the impeller simultaneously, and wherein: the first channel (521) is positioned on the peripheral wall of the second rotating shaft (52).

Technical Field

The invention relates to the field of cleaning equipment, in particular to a cleaning robot which drives a driving wheel and an impeller simultaneously by a single motor.

Background

Cleaning robots are classified into underwater cleaning robots and dry land cleaning robots, which are similar in principle and perform forward and backward movement and turning motions by means of driving wheels, garbage enters an internal filter element by means of negative pressure generated by an internal impeller, and filtered water or air is discharged out of the robot through the impeller, for example, a similar underwater cleaning robot is disclosed in a patent named as an underwater cleaning robot in the publication No. CN208380175U, wherein one motor drives a impeller to pump water, and the other motor drives a driving wheel to rotate and drives other wheels to rotate through a belt pulley, but the cleaning robot needs two motors to respectively provide power with different rotating speeds for the driving wheels and the impeller.

The cleaning robot is internally provided with the two motors, so that the self weight of the cleaning robot is increased, the cleaning robot also occupies the internal space, and the product cost is increased.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art and provides a cleaning robot which has compact structure, reasonable layout, stable operation, low cost and light dead weight and simultaneously drives a driving wheel and an impeller by a single motor.

The technical scheme adopted by the invention for solving the technical problems is as follows: a cleaning robot which drives a driving wheel and an impeller simultaneously by a single motor comprises the driving wheel, the impeller, a cavity for accommodating the impeller and a discharge port for communicating the cavity with the outside, wherein the impeller is provided with a first rotating shaft, and the driving wheel is provided with a second rotating shaft; a first channel is arranged between the cavity and the filter element; a connector is connected between the output shaft of the motor and the first rotating shaft, and a speed reducer is connected between the connector and the second rotating shaft.

In order to optimize the technical scheme, the adopted measures further comprise:

one scheme of the connector is a fixed part for synchronously connecting the output shaft of the motor and the first rotating shaft, and the other scheme is a planetary gear speed reducing mechanism for connecting the output shaft of the motor and the first rotating shaft. The choice of the speed reducer includes two conditions, the first condition is: when the second rotating shaft is parallel to the first rotating shaft, the speed reducer is any one of a planetary gear speed reducing mechanism and a belt pulley; the second case is: when the second rotating shaft and the first rotating shaft are on the same axis, the speed reducer is a planetary gear speed reducing mechanism.

The cavity is positioned in the driving wheel, and the discharge port is positioned on the driving wheel; the first channel is positioned on the second rotating shaft; a second channel which is communicated with the first channel and the cavity is arranged in the second rotating shaft; the second rotating shaft is sleeved on the periphery of the first rotating shaft; the planetary gear speed reducing mechanism is provided with a shaft hole for the rotation of the first rotating shaft.

The planetary gear speed reducing mechanism comprises a first planetary gear speed reducer and a second planetary gear speed reducer, wherein the second planetary gear speed reducer comprises a fixed second inner gear ring, a second planet gear and a second sun gear which are arranged in the second inner gear ring, and a second planet carrier which is arranged between the second sun gear and the first planetary gear speed reducer; the first planetary gear reducer comprises a first sun gear arranged on the second planet carrier, a first inner gear ring synchronously connected with the second rotating shaft, and a first planetary gear for arranging the rotating shaft on the second inner gear ring; the connector comprises a third sun gear fixed on the output shaft of the motor, a third planet gear in meshing transmission with the third sun gear and the second inner gear ring, and a fourth planet carrier arranged between the third sun gear and the second planet gear reducer, wherein the second sun gear is arranged on the fourth planet carrier, and the first rotating shaft is fixedly arranged on the fourth planet carrier.

A fifth planet carrier fixed on the fourth planet carrier is arranged between the third planet gear and the motor; a third planet carrier fixed on the second planet carrier is arranged between the second planet carrier and the fourth planet carrier; a first planet carrier fixed on the second inner gear ring is arranged between the first planet wheel and the impeller.

Compared with the prior art, the cleaning robot capable of driving the driving wheel and the impeller simultaneously by the single motor comprises the motor output shaft, the driving wheel and the impeller, wherein the impeller is provided with the first rotating shaft, the driving wheel is provided with the second rotating shaft, the connector is connected between the motor output shaft and the first rotating shaft, and the reducer is connected between the connector and the second rotating shaft. The cleaning robot completes the advancing and retreating and turning actions by the driving wheel, and the negative pressure generated by the impeller against the inside enables the garbage to enter the filter element inside and discharges the purified water or air out of the equipment. The output shaft of the impeller motor drives the first rotating shaft and the impeller to rotate at a higher speed through the connector, and the connector can drive the driving wheel to rotate at a low speed through the speed reducer, so that the impeller motor can drive the impeller and the driving wheel simultaneously by using only one motor, and the driving wheel and the impeller can generate different rotating speeds. The invention has the advantages that: because only one motor is used, the device has compact structure, reasonable layout, stable operation, low cost and light dead weight.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment, a second embodiment and a third embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a fourth embodiment of the present invention;

FIG. 3 is an exploded schematic view of FIG. 2;

FIG. 4 is a schematic view of the full section configuration of FIG. 2;

FIG. 5 is an exploded schematic view of FIG. 4;

FIG. 6 is an exploded schematic view of a connector and a speed reducer according to a fourth embodiment;

FIG. 7 is a schematic view of the full section configuration of FIG. 6;

fig. 8 is an enlarged schematic view of the drive wheel and the second shaft of fig. 5.

Detailed Description

Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

The labels in the figures are: the motor 1, the motor output shaft 11, the connector 2, the third sun gear 21, the third planet gear 22, the fourth planet carrier 23, the fifth planet carrier 24, the reducer 3, the first planetary gear reducer 31, the first sun gear 311, the first planet gear 312, the first ring gear 313, the first planet carrier 314, the second planetary gear reducer 32, the second sun gear 321, the second planet gear 322, the second ring gear 323, the second planet carrier 324, the third planet carrier 325, the impeller 41, the first rotating shaft 42, the driving wheel 51, the discharge port 511, the cavity 512, the second rotating shaft 52, the first passage 521, the second passage 522, and the filter element 6.