CN217447576U - Motor driving device of cleaning equipment and cleaning robot - Google Patents

Abstract

The utility model relates to a motor drive technical field provides a cleaning device's motor drive and cleaning machines people, and cleaning device's motor drive includes driving motor, first sprocket, second sprocket, chain, and driving motor's output shaft is connected with first sprocket, and the second sprocket passes through the chain to be connected with first sprocket drive, and the second sprocket is used for establishing the epaxial wheel connection with the cover. The utility model provides a cleaning equipment's motor drive and cleaning machines people's beneficial effect is: a single driving motor drives corresponding wheels to rotate through a chain transmission mechanism, the driving motor and a first chain wheel are arranged on one side of a bottom plate, a second chain wheel is arranged on the other side of the bottom plate, the space layout is convenient, the structure is simplified, and the technical problems that an existing motor driving device is complex in structure and large in turning radius are solved.

Description

Motor driving device of cleaning equipment and cleaning robot

Technical Field

The utility model belongs to the technical field of the motor drive technique and specifically relates to a cleaning device's motor drive and cleaning machines people are related to.

Background

The existing outdoor cleaning vehicle using a rear-drive structure comprises a bottom plate and wheels, wherein the wheels are arranged on an axle, and most of the wheels use a rear axle differential driving mode. The rear axle differential driving mode has the defects that the turning radius of the vehicle is large, and the rear axle differential driving mode is not suitable for some clean application scenes.

If the double motors are adopted to respectively drive the wheels, the differential speed of the double wheels is adjustable and controllable, and the steering is more sensitive. However, the dual-motor driving system in the prior art is mainly used for automobile or engineering wheels, has a complex structure and is not suitable for a cleaning robot. Therefore, there is a need in the market to provide a motor driving device with a simple structure, which realizes that a single motor drives a single wheel independently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cleaning device's motor drive and cleaning machines people aims at solving the current motor drive structure complicacy, the great technical problem of turning radius.

In order to achieve the above object, the utility model adopts the following technical scheme: a motor drive of a cleaning device, the cleaning device including a base plate and a wheel, the motor drive of the cleaning device comprising:

the chain wheel mechanism comprises a driving motor, a first chain wheel, a second chain wheel and a chain;

an output shaft of the driving motor is connected with the first chain wheel, and the driving motor, the driving transfer shaft and the first chain wheel are arranged on one side of the bottom plate;

the second chain wheel is used for being arranged on one side, far away from the driving motor, of the bottom plate, the second chain wheel is in transmission connection with the first chain wheel through a chain, and the second chain wheel is used for being connected with an axle of the wheel.

In one embodiment, the driving motor is a speed reducing motor, and/or a band-type brake device is arranged in the driving motor.

In one embodiment, the motor driving device of the cleaning device further comprises a first bearing seat and a first bearing, wherein the first bearing seat is sleeved on the first bearing, and the first bearing seat is used for being installed on one side of the bottom plate close to the driving motor;

the first chain wheel is arranged on one side, away from the driving motor, of the first bearing, and an output shaft of the driving motor penetrates through the first bearing to be connected with the first chain wheel.

In one embodiment, the motor driving device of the cleaning device further includes a first limiting retainer ring, the first limiting retainer ring is sleeved on the output shaft of the driving motor, and the first limiting retainer ring abuts against one side, close to the driving motor, of the first bearing, so as to limit the first bearing to move along the axial direction of the output shaft of the driving motor.

In one embodiment, the motor driving device of the cleaning device further comprises a chain wheel mounting seat, the chain wheel mounting seat is sleeved on an output shaft of the driving motor, and the chain wheel mounting seat abuts against one side, away from the first limiting retainer ring, of the first bearing; the first chain wheel is arranged on one side, away from the driving motor, of the chain wheel mounting seat.

In one embodiment, the motor driving device of the cleaning device further includes a second limiting retainer ring, the second limiting retainer ring is sleeved on the output shaft of the driving motor, and the second limiting retainer ring abuts against a side wall of the sprocket mounting seat close to the first sprocket so as to limit the sprocket mounting seat to move along the axial direction of the output shaft of the driving motor.

In one embodiment, the motor driving device of the cleaning apparatus further includes a second bearing seat and a second bearing, the second bearing seat is used for being sleeved on the axle, the second bearing seat is sleeved on the second bearing, one side of the second bearing seat is connected with the second sprocket, and the other side of the second bearing seat is used for being connected with the wheel.

In one embodiment, the motor driving device of the cleaning device further includes two third limiting check rings, the two third limiting check rings are installed inside the second bearing seat and sleeved on the axle, and the two third limiting check rings are located on two sides of the second bearing respectively to limit the second bearing to move along the axial direction of the axle.

The utility model also provides a cleaning machines people, including bottom plate, two axletrees, two wheels and two above-mentioned arbitrary one cleaning device's motor drive, two the axletree install respectively in the both sides of bottom plate, the axletree the wheel with the motor drive one-to-one.

In one embodiment, the cleaning robot further comprises a steering wheel and a steering driving member, the steering wheel is rotatably mounted on the bottom plate, the steering wheel and the two wheels are arranged on the same side of the bottom plate, the steering driving member is in transmission connection with the steering wheel, and the steering driving member is used for controlling the steering angle of the steering wheel.

The utility model provides a cleaning equipment's motor drive and cleaning machines people's beneficial effect is: the first chain wheel, the chain and the second chain wheel form a chain transmission mechanism, a single driving motor drives the wheels to rotate through driving the transfer shaft and the chain transmission mechanism, the driving motor, the driving transfer shaft and the first chain wheel are arranged on one side of the bottom plate, the second chain wheel is arranged on the other side of the bottom plate, the space layout is convenient, the structure is simplified, the technical problem that the structure of the existing motor driving device is complex is solved, and the unilateral space of the bottom plate is occupied.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a cleaning robot provided in an embodiment of the present invention;

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

fig. 3 is an exploded view of a part of a motor driving device provided in an embodiment of the present invention;

fig. 4 is another partially exploded view of the motor drive.

Wherein, in the figures, the respective reference numerals:

10. a base plate; 20. an axle; 30. a wheel; 31. a sixth connection hole; 40. a steering wheel; 50. a steering drive;

100. a drive motor;

200. driving the transfer shaft; 210. flattening; 220. a second mounting groove;

310. a first sprocket; 311. a first connection hole; 320. a second sprocket; 321. a fourth connection hole; 330. a chain; 340. a sprocket mounting seat; 341. a second connection hole; 350. a second fastener;

410. a first bearing housing; 411. a first fastener; 412. a first mounting hole; 420. a first bearing; 430. a first limit retainer ring; 440. a second limit retainer ring;

510. a second bearing housing; 511. a second mounting hole; 512. a third connection hole; 513. a fifth connecting hole; 520. a second bearing; 530. a third limit retainer ring; 540. a shaft sleeve; 550. a shaft end nut; 560. a third fastener; 570. and a fourth fastener.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 and 2, the cleaning apparatus includes a base plate 10 and wheels 30. An axle 20 is mounted at the bottom of the bottom plate 10, and a wheel 30 is rotatably sleeved on the axle 20.

Now, the motor driving device of the cleaning device in the embodiment of the present invention will be described. The motor driving apparatus includes a driving motor 100, a first sprocket 310, a second sprocket 320, and a chain 330. The driving motor 100 and the first sprocket 310 are adapted to be disposed at one side of the base plate 10. The second sprocket 320 is disposed on a side of the base plate 10 away from the driving motor 100.

Generally, the driving motor 100 and the first sprocket 310 are located at the top side of the base plate 10, and the second sprocket 320 is located at the bottom side of the base plate 10. The cleaning device is used for cleaning a surface to be cleaned, one side of the bottom plate 10 close to the surface to be cleaned is a bottom side, and one side of the bottom plate away from the surface to be cleaned is a top side.

Wherein, the output shaft of the driving motor 100 is connected with the first sprocket 310. The second sprocket 320 is drivingly connected to the first sprocket 310 by a chain 330, and the second sprocket 320 is adapted to be connected to the axle 20 of the wheel 30.

The utility model provides an among the cleaning device's motor drive arrangement, first sprocket 310, chain drive mechanism is constituteed to chain 330 and second sprocket 320, single driving motor 100 passes through chain drive mechanism and drives wheel 30 and rotate, and driving motor 100 and first sprocket 310 set up the one side at bottom plate 10, second sprocket 320 sets up the opposite side at bottom plate 10, the spatial layout of being convenient for, simplify the structure, the complicated technical problem of current motor drive arrangement structure has been solved, thereby reduce the bottom side space that occupies bottom plate 10, and can realize that turning radius in the cleaning device motion is littleer, can also realize the pivot and turn to.

In one embodiment, referring to fig. 1-3, the motor driving apparatus further includes a first bearing seat 410 and a first bearing 420, the first bearing seat 410 is disposed on the first bearing 420, the first bearing seat 410 is configured to be mounted on a side of the base plate 10 close to the driving motor 100; the first sprocket 310 is disposed on a side of the first bearing 420 facing away from the driving motor 100, and an output shaft of the driving motor 100 passes through the first bearing 420 and is connected to the first sprocket 310.

In one embodiment, the motor driving apparatus further includes a first limit stop 430, the first limit stop 430 is disposed on the output shaft of the driving motor 100, and the first limit stop 430 abuts against a side of the first bearing 420 close to the driving motor 100 to limit the first bearing 420 from moving along the axial direction of the output shaft of the driving motor 100.

In one embodiment, the motor driving device further includes a sprocket mounting seat 340, the sprocket mounting seat 340 is sleeved on the output shaft of the driving motor 100, and the sprocket mounting seat 340 abuts against one side of the first bearing 420, which is far away from the first limit retainer 430; the first sprocket 310 is mounted on a side of the sprocket mounting base 340 facing away from the drive motor 100.

In one embodiment, the motor driving apparatus further includes a second limit stop 440, the second limit stop 440 is sleeved on the output shaft of the driving motor 100, and the second limit stop 440 abuts against a side wall of the sprocket mounting seat 340 near the first sprocket 310 to limit the sprocket mounting seat 340 from moving along the axial direction of the output shaft of the driving motor 100.

Specifically, referring to fig. 1, a brake device is built in the driving motor 100, so that the driving motor 100 can provide not only driving force, but also braking force through the brake device, thereby achieving a braking effect.

Specifically, with continued reference to fig. 1, the drive motor 100 is a reduction motor. The driving motor 100 increases the torque by deceleration, and increases the driving force of the driving motor 100.

Specifically, the motor driving apparatus further includes a driving transfer shaft 200, one end of the driving transfer shaft 200 is connected to an output shaft of the driving motor 100, and the other end of the driving transfer shaft 200 is connected to the first sprocket 310.

In one embodiment, referring to fig. 2, one end of the driving transfer shaft 200 has an inner hole for the output shaft of the driving motor 100 to be inserted into, so as to fixedly connect the driving transfer shaft 200 and the output shaft of the driving motor 100.

In one embodiment, referring to fig. 2 and 3, the motor driving apparatus further includes a first bearing seat 410 and a first bearing 420. The first bearing seat 410 is disposed on the first bearing 420, and the first bearing seat 410 is configured to be mounted on a side of the base plate 10 close to the driving motor 100. The first sprocket 310 is disposed on a side of the first bearing 420 facing away from the driving motor 100, and the driving transfer shaft 200 is connected to the first sprocket 310 through the first bearing 420. The first bearing housing 410 is used for supporting the driving motor 100, the driving transfer shaft 200, the first bearing 420 and the first sprocket 310.

Specifically, the first bearing housing 410 is fixedly mounted on one side of the base plate 10 close to the driving motor 100 by a first fastener 411. The first bearing housing 410 has a first mounting hole 412 for receiving a first bearing 420. The first bearing 420 is disposed in the first mounting hole 412, and the inner ring of the first bearing 420 is disposed on the driving coupling shaft 200, so that the driving coupling shaft 200 is rotatably disposed in the first bearing seat 410.

Specifically, referring to fig. 3, the motor driving apparatus further includes a first limit stop 430. The first limiting stop ring 430 is sleeved on the driving transfer shaft 200, and the first limiting stop ring 430 abuts against one side of the first bearing 420 close to the driving motor 100, so as to limit the first bearing 420 to move along the axial direction of the driving transfer shaft 200, and prevent the first bearing 420 from sliding towards the direction close to the driving motor 100.

In one embodiment, referring to fig. 2 and 3, the motor driving apparatus further includes a sprocket mounting base 340. The sprocket mounting seat 340 is sleeved on the driving transfer shaft 200, and the sprocket mounting seat 340 abuts against one side of the first bearing 420, which is far away from the first limit retainer ring 430. The first sprocket 310 is mounted on a side of the sprocket mounting base 340 away from the driving motor 100, so that the driving transfer shaft 200 drives the first sprocket 310 to rotate through the sprocket mounting base 340, and transmits torque to the first sprocket 310.

Specifically, referring to fig. 3, the first sprocket 310 has a first coupling hole 311, the sprocket mounting base 340 has a second coupling hole 341 corresponding to the first coupling hole 311, and the second fastening member 350 is inserted into the first coupling hole 311 and the second coupling hole 341, so that the first sprocket 310 is mounted to the sprocket mounting base 340.

Optionally, the number of the first connection holes 311, the second connection holes 341, and the second fastening members 350 is plural and corresponds to one another.

Specifically, the driving coupling shaft 200 has a flat position 210, and the sprocket mounting seat 340 is sleeved on the flat position 210, so that the two realize torque transmission.

It is understood that in other embodiments, the drive transfer shaft 200 and the sprocket mounting base 340 can also be fixedly connected and torque transmitted by snapping, screwing or fastening.

Specifically, referring to fig. 3, the motor driving device further includes a second limit retainer 440. The second limit retainer ring 440 is sleeved on the driving transfer shaft 200, and the second limit retainer ring 440 abuts against a side wall of the sprocket mounting seat 340 close to the first sprocket 310, so as to limit the sprocket mounting seat 340 from moving along the axial direction of the driving transfer shaft 200, prevent the sprocket mounting seat 340 from sliding towards the direction close to the first sprocket 310, and ensure the stable work of the sprocket mounting seat 340.

Referring to fig. 3, two sides of the sprocket mounting seat 340 respectively abut against the first bearing 420 and the second limit retainer 440, so as to ensure that the sprocket mounting seat 340 is stable in the axial direction of the drive transfer shaft 200. Both sides of the first bearing 420 abut against the first limit retainer 430 and the sprocket mounting seat 340, respectively, thereby ensuring that the first bearing 420 is stable in position in the axial direction of the drive transfer shaft 200.

Optionally, referring to fig. 3, the second limit stop 440 is a shaft stop. The outer surface of the driving adapter shaft 200 has a second mounting groove 220 for mounting a second limit retainer 440, so that the second limit retainer 440 is sleeved on the driving adapter shaft 200 and mounted in the second mounting groove 220.

In one embodiment, referring to fig. 2 and 4, the motor driving device further includes a second bearing housing 510 and a second bearing 520. The second bearing 520 is configured to be sleeved on the axle 20, the second bearing seat 510 is sleeved on the second bearing 520, one side of the second bearing seat 510 is connected to the second sprocket 320, and the other side of the second bearing seat 510 is configured to be connected to the wheel 30. The second bearing housing 510 is used to support the second sprocket 320 and the wheel 30.

Specifically, referring to fig. 4, the second bearing housing 510 has a second mounting hole 511 for receiving the second bearing 520. The inner race of the second bearing 520 is fitted over the axle 20 so that the second sprocket 320 and the wheel 30 are rotatably disposed on the axle 20.

Specifically, referring to fig. 2 and 4, the motor driving apparatus further includes two third limit stoppers 530. Two third limiting retainer rings 530 are installed in the second bearing seat 510 and are sleeved on the axle 20, and the two third limiting retainer rings 530 are respectively located on two sides of the second bearing 520 to limit the second bearing 520 to move along the axial direction of the axle 20, so that the second bearing 520 is prevented from sliding axially, and the stable operation of the second bearing seat 510 and the wheel 30 is guaranteed.

Optionally, the third limit stop 530 is a circlip for hole. The wall of the second mounting hole 511 of the second bearing housing 510 has a third mounting groove (not shown), and the third retaining ring 530 is mounted in the third mounting groove.

Optionally, in conjunction with fig. 4, the number of the second bearings 520 is two, and two second bearings 520 are located between two third limit stops 530. The motor driving apparatus further includes a shaft sleeve 540, and the shaft sleeve 540 is located between the two second bearings 520 and is sleeved on the axle 20.

Specifically, in conjunction with fig. 4, the motor drive further includes a shaft end nut 550. An axial end nut 550 is mounted to the distal end of the axle 20 and abuts the second bearing housing 510 to limit the outward sliding movement of the second bearing housing 510 in the axial direction of the axle 20.

Specifically, referring to fig. 4, a side wall of the second bearing housing 510 has a third connecting hole 512, the second sprocket 320 has a fourth connecting hole 321 corresponding to the third connecting hole 512, and a third fastener 560 is inserted into the third connecting hole 512 and the fourth connecting hole 321 to fixedly connect the second bearing housing 510 and the second sprocket 320.

Specifically, referring to fig. 4, the other sidewall of the second bearing housing 510 has a fifth connecting hole 513, the wheel 30 has a sixth connecting hole 31 corresponding in position to the fifth connecting hole 513, and a fourth fastener 570 is inserted into the fifth connecting hole 513 and the sixth connecting hole 31 to fixedly connect the second bearing housing 510 and the wheel 30.

Referring to fig. 1, the present invention further provides a cleaning robot, which includes a bottom plate 10, two axles 20, two wheels 30 and two motor driving devices of any one of the above cleaning apparatuses, wherein the two axles 20 are respectively installed at two sides of the bottom plate 10, and the axles 20, the wheels 30 and the motor driving devices are in one-to-one correspondence. The two driving motors 100 respectively drive the two wheels 30, and the differential speed of the two wheels is adjustable and controllable, so that the steering is more sensitive.

The utility model provides an among the cleaning machines people, two wheels 30 of bottom plate 10 are through respective motor drive, and two motor drive mutual independence improve cleaning machines people's the flexibility that turns to, solve outdoor cleaning machines people and generally have the too big problem of turning radius because of adopting rear axle differential drive, can not adapt to the condition of narrow space operation. Meanwhile, the cleaning robot cancels a vehicle rear axle differential driving mechanism, does not occupy the bottom space of the bottom plate 10, and greatly increases the capacity of a rear garbage can.

In addition, two driving motors 100 can be provided with power-off brake devices, and running is safer and more reliable. When the driving motor 100 rotates reversely or the brake device works, the braking effect can be achieved.

Alternatively, the axle 20 is welded and fixed to the bottom of the base plate 10.

In one of the embodiments, the cleaning robot also steers the wheels 40 and the steering drive 50. The steering wheel 40 is rotatably installed on the base plate 10, the steering wheel 40 and the two wheels 30 are arranged on the same side of the base plate, the steering driving member 50 is in transmission connection with the steering wheel 40, and the steering driving member 50 is used for controlling the steering angle of the steering wheel 40, so that the cleaning robot can turn left or right.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. A motor drive for a cleaning apparatus, the cleaning apparatus including a base plate and a wheel, comprising:

the chain wheel mechanism comprises a driving motor, a first chain wheel, a second chain wheel and a chain;

an output shaft of the driving motor is connected with the first chain wheel, and the driving motor and the first chain wheel are arranged on one side of the bottom plate;

the second chain wheel is used for being arranged on one side, far away from the driving motor, of the bottom plate, the second chain wheel is in transmission connection with the first chain wheel through the chain, and the second chain wheel is used for being connected with an axle of the wheel.

2. The motor driving device of a cleaning apparatus according to claim 1, characterized in that: the driving motor is a speed reducing motor, and/or a band-type brake device is arranged in the driving motor.

3. The motor driving device of a cleaning apparatus according to claim 1, characterized in that: the motor driving device of the cleaning equipment further comprises a first bearing seat and a first bearing, wherein the first bearing seat is sleeved on the first bearing and is used for being installed on one side, close to the driving motor, of the bottom plate;

the first chain wheel is arranged on one side, away from the driving motor, of the first bearing, and an output shaft of the driving motor penetrates through the first bearing to be connected with the first chain wheel.

4. The motor driving device of a cleaning apparatus according to claim 3, characterized in that: the motor driving device of the cleaning equipment further comprises a first limiting retainer ring, the first limiting retainer ring is sleeved on the output shaft of the driving motor, and the first limiting retainer ring is abutted against one side, close to the driving motor, of the first bearing so as to limit the first bearing to move along the axial direction of the output shaft of the driving motor.

5. The motor driving device of a cleaning apparatus according to claim 4, wherein: the motor driving device of the cleaning equipment further comprises a chain wheel mounting seat, the chain wheel mounting seat is sleeved on an output shaft of the driving motor, and the chain wheel mounting seat abuts against one side, away from the first limiting retainer ring, of the first bearing;

the first chain wheel is arranged on one side of the chain wheel mounting seat departing from the first bearing.

6. The motor driving device of a cleaning apparatus according to claim 5, wherein: cleaning device's motor drive still includes the spacing retaining ring of second, the spacing retaining ring cover of second is established on driving motor's the output shaft, just the spacing retaining ring of second support by lean on in the sprocket mount pad is close to one side lateral wall of first sprocket, in order to restrict the sprocket mount pad is followed the axial of driving motor's output shaft takes place to remove.

7. The motor driving device of a cleaning apparatus according to any one of claims 1 to 6, characterized in that: the motor driving device of the cleaning equipment further comprises a second bearing seat and a second bearing, the second bearing seat is used for being sleeved on the vehicle axle, the second bearing seat is sleeved on the second bearing, one side of the second bearing seat is connected with the second chain wheel, and the other side of the second bearing seat is used for being connected with the vehicle wheel.

8. The motor driving device of a cleaning apparatus according to claim 7, wherein: the motor driving device of the cleaning equipment further comprises two third limiting check rings, the two third limiting check rings are installed inside the second bearing seat and are sleeved with the axle, and the two third limiting check rings are respectively located on two sides of the second bearing to limit the second bearing to move along the axial direction of the axle.

9. A cleaning robot, characterized in that: the cleaning device comprises a bottom plate, two axles, two wheels and two motor driving devices of the cleaning device, wherein the two axles are respectively arranged on two sides of the bottom plate, and the two axles, the two wheels and the two motor driving devices are in one-to-one correspondence.

10. The cleaning robot according to claim 9, wherein: the cleaning robot is characterized by further comprising a steering wheel and a steering driving piece, wherein the steering wheel is rotatably arranged on the bottom plate, the steering wheel and the two wheels are arranged on the same side of the bottom plate, the steering driving piece is in transmission connection with the steering wheel, and the steering driving piece is used for controlling the steering angle of the steering wheel.

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