Motor, power-assisted driving wheel and cleaning walking mechanism with driving wheel

Abstract

The utility model relates to the technical field of cleaning walking mechanisms, in particular to a motor, a power-assisted driving wheel and a cleaning walking mechanism with the power-assisted driving wheel, which comprise a motor shaft, a stator assembly and a rotor assembly, the motor shaft is rotatably connected with a motor shell through a bearing, and the stator assembly and the rotor assembly are both positioned in the motor shell. The stator assembly is installed on the motor shaft, the rotor assembly is installed on the inner wall of the motor shell, a gap used for forming a magnetic field exists between the stator assembly and the rotor assembly, after electrification, the magnetic field is formed between the stator assembly and the rotor assembly, the rotor assembly generates induced electromotive force in the magnetic field, and generated current flows through a closed rotor circuit. The two magnetic fields interact to drive the rotor assembly to rotate and further drive the motor shell to rotate, the motor shaft is connected with the motor shell through the bearing, friction force can be reduced in the rotating process of the motor shell, and the motor has the advantages of being simple in structure, low in noise, low in power consumption and high in response speed.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning travel mechanisms, in particular to a motor, a power-assisted driving wheel and a cleaning travel mechanism with the driving wheel. Background Art

[0002] Most of the existing cleaning travel mechanisms use brush motors as the driving source. Brush motors need to be turned by carbon brushes, which have certain wear and tear. In addition, they need to be used with a reduction gearbox, which has a complex layout, high noise and high power consumption.

[0003] For example, the patent application number CN202010435828.5 is a sweeping robot that can clean stairs, comprising at least two sections of a fuselage arranged at intervals from front to back, and the two adjacent sections of the fuselage are movably connected by a universal joint mechanism; a side brush, a roller brush, a garbage bag and a driving wheel are provided at the bottom of the fuselage, the side brushes are located on both sides of the bottom of the fuselage and are driven by a side brush motor, the roller brush is located behind the side brush and is driven by the roller brush motor, and the garbage bag is located behind the roller brush for collecting garbage swept in by the roller brush; the driving wheels are also provided on both sides of the bottom of the fuselage, and the driving wheels are driven by a driving motor; a climbing wheel and a guide wheel are provided at the front end of the head fuselage, but the disadvantage of this technical solution is that a brushed motor is used as a power source, which has the disadvantages of large wear, complex layout, high noise and high power consumption. Utility Model Content

[0004] The purpose of the utility model is to provide a motor, a power-assisted driving wheel and a cleaning walking mechanism with the driving wheel to solve the problems in the prior art. The specific technical solutions are as follows:

[0005] A motor comprises a motor shaft, a stator assembly and a rotor assembly. The motor shaft is rotatably connected to a motor housing via a bearing. Both the stator assembly and the rotor assembly are located in the motor housing. The stator assembly is mounted on the motor shaft, and the rotor assembly is mounted on the inner wall of the motor housing. There is a gap between the stator assembly and the rotor assembly for forming a magnetic field.

[0006] Furthermore, the stator assembly includes a stator and a stator base, the stator base is mounted on the motor shaft, and the stator is fixed on the stator base.

[0007] Furthermore, the bearing includes bearing one and bearing two, the motor housing includes a bottom shell and a cover plate, the bottom shell and the cover plate are fixed by screw four, the bottom shell is rotatably connected to the motor shaft through bearing one, and the cover plate is rotatably connected to the motor shaft through bearing two.

[0008] Furthermore, the rotor assembly includes an iron ring and a magnetic ring, both of which are installed in the bottom shell, and there is a gap between the stator and the magnetic ring for forming a magnetic field. The stator base is fixedly connected to the PCB board by screw three, the stator is electrically connected to the PCB board, and the motor shaft is fixedly connected to the flange by screw two.

[0009] Furthermore, the surface of the cover plate is provided with a plurality of air inlet holes, the surface of the bottom shell is provided with a plurality of air outlet holes, a filter is provided at the air inlet hole, the filter is fixedly connected to one end of a connecting rod, the other end of the connecting rod is fixedly connected to a turning button, the cover plate is rotatably connected to the turning button, a spring is provided between the cover plate and the turning button, the turning button is slidably connected to a slide rod, the slide rod is fixedly connected to one end of a spring, the other end of the spring is fixed in the turning button, and a limiting hole is provided on the cover plate.

[0010] A power-assisted driving wheel comprises a motor as described in any of the above items and a tire wrapped around the outside thereof, the motor being fixed to a support plate by screw 1, the support plate being slidably connected to a bracket, a screw 1 being rotatably connected inside the bracket, the support plate being threadedly connected to the screw 1, the bracket being fixed to a side of a box body, the screw 1 being fixedly connected to a rotating rod, and a walking power-assisting device being installed inside the box body.

[0011] Furthermore, the walking assist device includes a pawl, which is rotatably connected to the box body, a torsion spring is provided at the connection between the pawl and the box body, the pawl is slidingly connected to the strip fabric, a long tube is rotatably connected to the end of the strip fabric, the strip fabric is rotatably connected to the long tube, the strip fabric is rotatably connected to the long tube, the strip fabric is rotatably connected to the first rotating shaft, the strip fabric is rotatably connected to the fourth rotating shaft, the strip fabric is rotatably connected to the second rotating shaft, the strip fabric is rotatably connected to the third rotating shaft, the second rotating shaft is connected to the output end of the drive motor, and the drive motor is fixed in the box body.

[0012] Furthermore, the rotating shaft 1 is rotatably connected to the rotating shaft bracket 1, the rotating shaft bracket 1 is slidably connected to the box body, a support rod is fixed in the box body, the rotating shaft bracket 1 is slidably connected to the support rod, the support rod is threadedly connected to the nut, the nut is rotatably connected to the slide, the slide is slidably connected to the support rod, the slide is fixedly connected to one end of the spring 2, and the other end of the spring 2 is fixedly connected to the rotating shaft bracket 1.

[0013] Further, a shell is fixed in the box body, a chamber is provided in the shell body, the shell body is rotatably connected to the second screw rod, the second screw rod is threadedly connected to the square frame, the square frame slides in the box body, a servo motor is fixed to the side of the square frame, an axle rod is connected to the output end of the servo motor, the axle rod is matched with the gear belt transmission, the square frame is slidably connected to the gear belt, the gear belt is meshed with the rack for transmission, the rack is fixedly connected to the second slide rod, the second slide rod is slidably connected to the pressure shell, the second slide rod is slidably connected to the bent rod, the pressure shell is rotatably connected to the bent rod, the bent rod is rotatably connected to the scraper, the scraper is rotatably connected to the pressure shell, a limiting column is fixed on the pressure shell, a long groove is provided on the shell body, and a brushing device is slidably connected to the shell body;

[0014] The scrubbing device includes a reciprocating mechanism, a reciprocating mechanism is fixed on a shell, an output end of the reciprocating mechanism is connected to a slider, the slider slides on the shell, a small motor is fixed in the slider, the output end of the small motor is connected to gear one, gear one and gear two are meshed for transmission, gear two is fixedly connected to a hollow tube, both gear two and the hollow tube rotate in the slider, a brush is fixed at the lower end of the hollow tube, a water inlet pipe is fixed at the upper end of the slider, the hollow tube is butt-jointed with the water inlet pipe, a plug is provided on the side of the shell, and a through hole is provided on the shell.

[0015] A cleaning walking mechanism comprises a power-assisted driving wheel as described in any one of the above items.

[0016] The advantages of the utility model are:

[0017] After the motor is energized, a magnetic field is formed between the stator assembly and the rotor assembly. The rotor assembly generates an induced electromotive force in the magnetic field, generating current that flows through the closed rotor circuit, thereby generating another magnetic field. The interaction between the two magnetic fields drives the rotor assembly to rotate, thereby driving the motor housing to rotate. Since the motor shaft and the motor housing are connected by bearings, the friction of the motor housing can be reduced during rotation. The motor has the advantages of simple structure, low noise, low power consumption and fast response speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The motor structure of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 2 The motor structure of the utility model is shown in FIG. Figure 2 ;

[0020] Figure 3 The motor structure of the utility model is shown in FIG. Figure 3 ;

[0021] Figure 4 This is an exploded diagram of the motor structure of the utility model;

[0022] Figure 5 The motor structure of the utility model is shown in FIG. Figure 4 ;

[0023] Figure 6 The motor structure of the utility model is shown in FIG. Figure 5 ;

[0024] Figure 7 The motor structure of the utility model is shown in FIG. Figure 6 ;

[0025] Figure 8 The motor structure of the utility model is shown in FIG. Figure 7 ;

[0026] Fig. 9 The schematic diagram of the power-assisted driving wheel structure of the utility model is shown in FIG. Figure 1 ;

[0027] Fig.10 The schematic diagram of the power-assisted driving wheel structure of the utility model is shown in FIG. Figure 2 ;

[0028] Fig.11 The schematic diagram of the power-assisted driving wheel structure of the utility model is shown in FIG. Figure 3 ;

[0029] Fig.12 The schematic diagram of the power-assisted driving wheel structure of the utility model is shown in FIG. Figure 4 ;

[0030] Fig.13 The schematic diagram of the power-assisted driving wheel structure of the utility model is shown in FIG. Figure 5 ;

[0031] Fig.14 The schematic diagram of the power-assisted driving wheel structure of the utility model is shown in FIG. Figure 6 ;

[0032] Fig.15 The schematic diagram of the power-assisted driving wheel structure of the utility model is shown in FIG. Figure 7 ;

[0033] Fig.16 The schematic diagram of the power-assisted driving wheel structure of the utility model is shown in FIG. Figure 8 ;

[0034] Fig.17 The schematic diagram of the power-assisted driving wheel structure of the utility model is shown in FIG. Figure 9 ;

[0035] Fig.18 The schematic diagram of the power-assisted driving wheel structure of the utility model is shown in FIG. Figure 10 ;

[0036] Fig.19 The schematic diagram of the power-assisted driving wheel structure of the utility model is shown in FIG. Figure 10 one;

[0037] Description of the markings in the figure:

[0038] 1. Box; 2. Rotating rod; 3. Bracket; 4. Flange; 5. Screw 1; 6. Screw 2; 7. Motor shaft; 8. Bottom shell; 9. Bearing 1; 10. Iron ring; 11. Magnetic ring; 12. Stator; 13. Stator base; 14. PCB board; 15. Screw 3; 16. Bearing 2; 17. Cover plate; 18. Screw 4; 19. Tire; 20. Support plate; 21. Screw 1; 22. Air inlet; 23. Filter; 24. Connecting rod; 25. Turn button; 26. Spring; 27. Spring 1; 28. Slide bar 1; 29. ​​Limit hole; 30. Air outlet; 31. Ratchet; 32. Torsion spring; 33. Fabric strip; 34. Long tube; 35. Rotating shaft 1; 36. Rotating shaft bracket one; 37. Support rod; 38. Nut; 39. Slide; 40. Spring two; 41. Shell; 42. Chamber; 43. Screw two; 44. Square frame; 45. Servo motor; 46. Shaft; 47. Gear belt; 48. Rack; 49. Slide two; 50. Pressure shell; 51. Bending rod; 52. Scraper; 53. Limiting column; 54. Long groove; 55. Reciprocating motion mechanism; 56. Slider; 57. Small motor; 58. Gear one; Tooth 59. Wheel two; 60. Hollow tube; 61. Brush; 62. Water inlet pipe; 63. Plug; 64. Driving motor; 65. Rotating shaft two; 66. Rotating shaft three; 67. Rotating shaft four; 68. Through hole. DETAILED DESCRIPTION

[0039] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] Embodiment 1

[0042] like Figure 1-19As shown, a motor comprises a motor shaft 7, a stator assembly and a rotor assembly, the motor shaft 7 is rotatably connected to the motor housing through a bearing, the stator assembly and the rotor assembly are both located in the motor housing, the stator assembly is mounted on the motor shaft 7, the rotor assembly is mounted on the inner wall of the motor housing, and there is a gap between the stator assembly and the rotor assembly for forming a magnetic field;

[0043] The working principle of the above technical solution is: the motor shaft 7 is fixed at a set position. After power is turned on, a magnetic field is formed between the stator assembly and the rotor assembly. The rotor assembly generates an induced electromotive force in the magnetic field, generating a current flowing through the closed rotor circuit, thereby generating another magnetic field. The two magnetic fields interact with each other to drive the rotor assembly to rotate, thereby driving the motor housing to rotate. Since the motor shaft 7 is connected to the motor housing through a bearing, the friction of the motor housing can be reduced during rotation. The motor has the advantages of simple structure, high efficiency and fast response speed.

[0044] Embodiment 2

[0045] like Figure 1-19 As shown, the stator assembly includes a stator 12 and a stator base 13. The stator base 13 is mounted on the motor shaft 7, and the stator 12 is fixed on the stator base 13;

[0046] The bearing includes a bearing 1 9 and a bearing 2 16, the motor housing includes a bottom shell 8 and a cover plate 17, the bottom shell 8 and the cover plate 17 are fixed by screws 4 18, the bottom shell 8 is rotatably connected to the motor shaft 7 through the bearing 1 9, and the cover plate 17 is rotatably connected to the motor shaft 7 through the bearing 2 16;

[0047] The rotor assembly includes an iron ring 10 and a magnetic ring 11, both of which are installed in the bottom shell 8, and there is a gap between the stator 12 and the magnetic ring 11 for forming a magnetic field;

[0048] The working principle of the above technical solution is: fix the motor shaft 7 at the set position. After the stator 12 is energized, a magnetic field will be formed between the stator 12 and the magnetic ring 11. The magnetic ring 11 generates an induced electromotive force in the magnetic field, and another magnetic field is generated near the magnetic ring 11. The interaction between the two magnetic fields drives the magnetic ring 11 and the iron ring 10 to rotate, and then drives the bottom shell 8 and the cover plate 17 to rotate. Since the bottom shell 8 and the cover plate 17 rotate on the motor shaft 7 through bearing one 9 and bearing two 16 respectively, the bottom shell 8 and the cover plate 17 can reduce friction during rotation, and the screw four 18 can be removed, and then the cover plate 17 can be removed to inspect and repair the inside of the motor.

[0049] Embodiment 3

[0050] like Figure 1-19 As shown, the stator base 13 is fixedly connected to the PCB board 14 by screw three 15, the stator 12 is electrically connected to the PCB board 14, and the motor shaft 7 is fixedly connected to the flange 4 by screw two 6;

[0051] The working principle of the above technical solution is as follows: the function of the stator base 13 is to fix the stator 12 on the motor shaft 7, and at the same time fix the PCB board 14 inside the motor. The stator 12 is electrically connected to the PCB board 14, and the three-phase commutation of the stator 12 is realized through the PCB board 14, thereby increasing the stability of the motor power output. The motor shaft 7 is fixed to the flange 4 by screws 6, and the flange 4 is fixed in a preset position, thereby fixing the motor shaft 7, the stator base 13 and the stator 12, and the position remains unchanged.

[0052] Embodiment 4

[0053] like Figure 1-19 As shown, the surface of the cover plate 17 is provided with a plurality of air inlet holes 22, the surface of the bottom shell 8 is provided with a plurality of air outlet holes 30, a filter screen 23 is provided at the air inlet hole 22, the filter screen 23 is fixedly connected to one end of a connecting rod 24, the other end of the connecting rod 24 is fixedly connected to a knob 25, the cover plate 17 is rotatably connected to the knob 25, a spring 26 is provided between the cover plate 17 and the knob 25, the knob 25 is slidably connected to a slide rod 28, the slide rod 28 is fixedly connected to one end of a spring 27, the other end of the spring 27 is fixed in the knob 25, and a limiting hole 29 is provided on the cover plate 17;

[0054] The working principle of the above technical solution is as follows: when the motor is running, the bottom shell 8 and the cover plate 17 rotate, the air passes through the filter 23 and enters the motor from the air inlet 22, and the air is blown out from the air outlet 30. The filter 23 filters the incoming air, and the dust layer in the air remains on the filter 23. After a certain period of use, the knob 25 is turned to drive the spring 26 to deform, drive the connecting rod 24 to rotate, drive the filter 23 to rotate with the connecting rod 24, drive the filter 23 to separate from the air inlet 22, and drive the slide bar 28 to rotate with the knob 25. When the slide bar 28 moves to the limit hole 29, under the elastic force of the spring 27, the slide bar 14. The filter 23 is then inserted into the limiting hole 29, and the filter 23 can be cleaned on both sides. When the cleaning is completed, the slide bar 28 is pulled to compress the spring 27, and the slide bar 28 is separated from the limiting hole 29. Under the action of the spring 26 restoring the deformation, the knob 25 is rotated, the connecting rod 24 is rotated, and the filter 23 is re-attached to the air inlet 22. The air inlet 22 and the air outlet 30 are arranged on both sides of the motor. The air intake runs through the entire motor, and the cooling effect is good. The air inlet 22 and the air outlet 30 are perpendicular to the rotation direction of the motor, which increases the air intake and air outlet. The filter 23 can be separated from the air inlet 22 at any time, which is convenient for cleaning the filter 23.

[0055] Embodiment 5

[0056] like Figure 1-19As shown, a power-assisted driving wheel comprises a motor as described in any one of the above items and a tire 19 wrapped around the outside thereof, the motor is fixed to a support plate 20 by a screw 5, the support plate 20 is slidably connected to a bracket 3, a screw 21 is rotatably connected inside the bracket 3, the support plate 20 is threadedly connected to the screw 21, the bracket 3 is fixed to the side of a box body 1, the screw 21 is fixedly connected to a rotating rod 2, and a walking power-assist device is installed inside the box body 1;

[0057] The working principle of the above technical solution is: the flange 4 of the motor is fixed to the support plate 20 by a screw 5, and then the whole motor is fixed to the support plate 20, and the rotating rod 2 drives the screw 21 to rotate, driving the support plate 20 to rise or fall on the bracket 3, driving the height of the motor and the tire 19, and then changing the walking height of the power-assisted drive wheel.

[0058] Embodiment 6

[0059] like Figure 1-19 As shown, the walking assist device includes a pawl 31, the pawl 31 is rotatably connected to the box body 1, a torsion spring 32 is provided at the connection between the pawl 31 and the box body 1, the pawl 31 is slidably connected to the belt-like fabric 33, the end of the belt-like fabric 33 is rotatably connected to a long tube 34, the belt-like fabric 33 is rotatably connected to the long tube 34, the belt-like fabric 33 is rotatably connected to the shaft 1 35, the belt-like fabric 33 is rotatably connected to the shaft 4 67, the belt-like fabric 33 is rotatably connected to the shaft 2 65, the belt-like fabric 33 is rotatably connected to the shaft 3 66, the shaft 2 65 is connected to the output end of the drive motor 64, and the drive motor 64 is fixed in the box body 1;

[0060] The working principle of the above technical solution is: under the action of the torsion spring 32, the pawl 31 is driven to rest against the tire 19, and the drive motor 64 is started to drive the rotating shaft 2 65 to rotate, drive the belt fabric 33 to rotate, drive the rotating shaft 3 66, the rotating shaft 4 67 and the rotating shaft 1 35 to rotate, and the rotation of the belt fabric 33 drives the long tube 34 to rotate, and the belt fabric 33 slides with the pawl 31. Since the belt fabric 33 is in contact with the tire 19, during the movement of the driving wheel, the running direction of the belt fabric 33 is opposite to the rotation direction of the driving wheel. Therefore, the belt fabric 33 assists the rotation of the tire 19. In addition, the belt fabric 33 contacts the tire 19, and can wipe the dust on the tire 19 to keep the cleanliness of the tire 19.

[0061] Embodiment 7

[0062] like Figure 1-19As shown, the rotating shaft 1 35 is rotatably connected with the rotating shaft bracket 1 36, the rotating shaft bracket 1 36 is slidably connected with the box body 1, a support rod 37 is fixed in the box body 1, the rotating shaft bracket 1 36 is slidably connected with the support rod 37, the support rod 37 is threadedly connected with the nut 38, the nut 38 is rotatably connected with the slide 39, the slide 39 is slidably connected with the support rod 37, the slide 39 is fixedly connected with one end of the spring 2 40, and the other end of the spring 2 40 is fixedly connected with the rotating shaft bracket 1 36;

[0063] The working principle of the above technical solution is as follows: under the pulling force of spring 2 40, the rotating shaft bracket 1 36 is driven to have an upward pulling force, which drives the rotating shaft 1 35 to pull the belt fabric 33 upward, so that the belt fabric 33 always maintains sufficient tension, and the nut 38 is rotated to drive the slide 39 to move up or down, thereby changing the pulling force of spring 2 40, and changing the pulling force of rotating shaft 1 35 and rotating shaft bracket 1 36 on the belt fabric 33. When the nut 38 moves upward on the support rod 37, it drives the slide 39 to move upward, drives the spring 2 40 to stretch, increases the upward pulling force of rotating shaft 1 35 and bracket 1 36, and thereby increases the tension of the belt fabric 33. When the nut 38 moves downward on the support rod 37, it drives the slide 39 to move downward, drives the spring 2 40 to contract, drives the rotating shaft 1 35 and bracket 1 36 to move downward, thereby reducing the tension of the small belt fabric 33, and thus the tension of the belt fabric 33 can be adjusted according to actual needs.

[0064] Embodiment 8

[0065] like Figure 1-19 As shown, a shell 41 is fixed in the box body 1, a chamber 42 is provided in the shell body 41, the shell body 41 is rotatably connected with the second screw rod 43, the second screw rod 43 is threadedly connected with the square frame 44, the square frame 44 slides in the box body 1, a servo motor 45 is fixed on the side of the square frame 44, the output end of the servo motor 45 is connected with a shaft rod 46, the shaft rod 46 is connected with the gear belt 47 for transmission, the square frame 44 is slidably connected with the gear belt 47, the gear belt 47 is meshed with the rack 48 for transmission, the rack 48 is fixedly connected with the second slide bar 49, the second slide bar 49 is slidably connected with the pressure shell 50, the second slide bar 49 is slidably connected with the bending rod 51, the pressure shell 50 is rotatably connected with the bending rod 51, the bending rod 51 is rotatably connected with the scraper 52, the scraper 52 is rotatably connected with the pressure shell 50, a limiting column 53 is fixed on the pressure shell 50, a long slot 54 is provided on the shell body 41, and a brushing device is slidably connected to the shell body 41;

[0066] The scrubbing device includes a reciprocating mechanism 55, a reciprocating mechanism 55 is fixed on the housing 41, an output end of the reciprocating mechanism 55 is connected to a slider 56, the slider 56 slides on the housing 41, a small motor 57 is fixed in the slider 56, an output end of the small motor 57 is connected to a gear 1 58, the gear 1 58 is meshed with a gear 2 59 for transmission, the gear 2 59 is fixedly connected to a hollow tube 60, the gear 2 59 and the hollow tube 60 both rotate in the slider 56, a brush 61 is fixed at the lower end of the hollow tube 60, a water inlet pipe 62 is fixed at the upper end of the slider 56, the hollow tube 60 is butt-jointed with the water inlet pipe 62, a plug 63 is provided on the side of the housing 41, and a through hole 68 is provided on the housing 41;

[0067] The working principle of the above technical solution is as follows: Use scenario 1: Start the servo motor 45, drive the shaft 46 to rotate counterclockwise, drive the gear belt 47 to rotate counterclockwise, drive the rack 48 to move right, drive the slide bar 2 49 and the pressure shell 50 to move right, drive the pressure shell 50 to slide rightward in the shell 41, drive the pressure shell 50 to slide to the rightmost side of the shell 41, and separate the pressure shell 50 from the belt-shaped fabric 33. Start the drive motor 64 to drive the second shaft 65 to rotate, drive the belt-shaped fabric 33 to rotate, and drive the third shaft 66 , the rotating shaft 4 67 and the rotating shaft 1 35 rotate, the belt fabric 33 rotates to drive the long tube 34 to rotate, and the belt fabric 33 and the ratchet 31 slide. Since the belt fabric 33 is in contact with the tire 19, the running direction of the belt fabric 33 is opposite to the driving wheel during the driving process. Therefore, the belt fabric 33 assists the rotation of the tire 19. In addition, the belt fabric 33 contacts the tire 19 and can wipe the dust on the tire 19 to keep the tire 19 clean;

[0068] Usage scenario 2: After the belt fabric 33 has been used for a certain period of time, the belt fabric 33 repeatedly contacts the tire 19, causing the surface of the belt fabric 33 to be very dirty, the drive motor 64 stops working, the belt fabric 33 stops rotating, the servo motor 45 is started, the shaft 46 rotates clockwise, the gear belt 47 rotates clockwise, the rack 48 slides to the left on the pressure shell 50, the slide bar 2 49 slides to the left on the pressure shell 50, the bending rod 51 rotates with the pressure shell 50, the scraper 52 rotates with the pressure shell 50, and the lower end of the scraper 52 rotates. The bending rod 51 is lifted up, and then rotated to a certain angle to abut against the limiting column 53, pushing the pressure shell 50 to slide to the left on the shell 41, and the pressure shell 50 moves to the top of the strip fabric 33, and the small motor 57 is started to drive the gear 1 58 to rotate, drive the gear 2 59 to rotate, drive the hollow tube 60 to rotate, drive the brush 61 to rotate, and at the same time, the external water enters the hollow tube 60 from the water inlet pipe 62, and falls on the strip fabric 33 from the brush 61, and the brush 61 rotates to scrub the strip fabric 33, and the reciprocating motion mechanism 55 is started to drive the slider 56 to reciprocate on the pressure shell 50. The brush 61 slides and drives the brush 61 to reciprocate and scrub the fabric strip 33 in the pressure shell 50. Excess water falling on the fabric strip 33 can enter the chamber 42 from the through hole 68. After the brush 61 scrubs the fabric strip 33 in the pressure shell 50 for a certain period of time, the servo motor 45 is started to drive the shaft 46 to rotate counterclockwise, drive the gear belt 47 to rotate counterclockwise, drive the rack 48 to move rightward on the pressure shell 50, drive the sliding rod 2 49 to pull the curved rod 51 to rotate, and the curved rod 51 pulls the scraper 52 to rotate, driving the lower end of the scraper 52 to rest against the upper surface of the shell 41 again. The rack 48 continues to move to the right, driving the second slide bar 49 to pull the pressure shell 50 to move to the right on the shell 41, and the scraper 52 scrapes the muddy water on the strip fabric 33 to the right, and the muddy water flows into the long groove 54 and flows into the chamber 42 from both sides of the shell 41. The drive motor 64 is started to drive the second shaft 65 to rotate, and the strip fabric 33 is driven to rotate. The cleaned part of the strip fabric 33 is moved away, and another dirty area is moved to the top of the shell 41. Repeat the above steps to clean the dirty area. The reciprocating motion can clean the entire strip fabric 33.

[0069] The square frame 44 exerts a certain pressure on the compression shell 50, so that the compression shell 50 is closely attached to the upper surface of the shell 41. When the compression shell 50 moves above the shell 41, the scraper 52 scrapes the mud and water on the strip fabric 33 more thoroughly. The screw rod 43 is rotated to drive the square frame 44 to rise or fall, thereby changing the pressure between the compression shell 50 and the shell 41, so that the scraper 52 in front of the compression shell 50 scrapes the mud and water on the strip fabric 33 to achieve the best effect.

[0070] The driving wheel can be assisted, the tire 19 can be cleaned, and the belt-shaped fabric 33 has a self-cleaning function after use.

[0071] Embodiment 9

[0072] like Figure 1-19 As shown, a cleaning walking mechanism comprises a power-assisted driving wheel as described in any one of the above items;

[0073] The working principle of the above technical solution: During the operation of the cleaning walking mechanism, there will be a lot of dust, and the filter 23 effectively prevents the dust from entering the motor. During the movement, the tire 19 is easily stained with stains, and the belt-shaped fabric 33 can clean the tire 19, and at the same time, the belt-shaped fabric 33 has the effect of assisting the driving wheel.

[0074] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A motor, characterized in that: The invention comprises a motor shaft (7), a stator assembly and a rotor assembly. The motor shaft (7) is rotatably connected to a motor housing via a bearing. The stator assembly and the rotor assembly are both located in the motor housing. The stator assembly is mounted on the motor shaft (7), and the rotor assembly is mounted on the inner wall of the motor housing. There is a gap between the stator assembly and the rotor assembly for forming a magnetic field.

2. A motor according to claim 1, characterized in that: The stator assembly comprises a stator (12) and a stator base (13); the stator base (13) is mounted on the motor shaft (7), and the stator (12) is fixed on the stator base (13).

3. A motor according to claim 2, characterized in that: The bearing comprises a first bearing (9) and a second bearing (16); the motor housing comprises a bottom shell (8) and a cover plate (17); the bottom shell (8) and the cover plate (17) are fixed by screws (18); the bottom shell (8) is rotatably connected to the motor shaft (7) by the first bearing (9); and the cover plate (17) is rotatably connected to the motor shaft (7) by the second bearing (16).

4. A motor according to claim 3, characterized in that: The rotor assembly comprises an iron ring (10) and a magnetic ring (11), wherein the iron ring (10) and the magnetic ring (11) are both installed in a bottom shell (8), and a gap for forming a magnetic field exists between the stator (12) and the magnetic ring (11).

5. A motor according to claim 4, characterized in that: The stator base (13) is fixedly connected to the PCB board (14) via screw three (15), and the stator (12) is electrically connected to the PCB board (14).

6. A motor according to claim 5, characterized in that: The motor shaft (7) is fixedly connected to the flange (4) via screw 2 (6).

7. A motor according to claim 6, characterized in that: The surface of the cover plate (17) is provided with a plurality of air inlet holes (22), the surface of the bottom shell (8) is provided with a plurality of air outlet holes (30), a filter screen (23) is provided at the air inlet hole (22), the filter screen (23) is fixedly connected to one end of a connecting rod (24), the other end of the connecting rod (24) is fixedly connected to a rotating knob (25), and the cover plate (17) is rotatably connected to the rotating knob (25).

8. The motor according to claim 7, characterized in that: A spring (26) is provided between the cover plate (17) and the rotating button (25); the rotating button (25) is slidably connected to a slide rod (28); the slide rod (28) is fixedly connected to one end of a spring (27); the other end of the spring (27) is fixed in the rotating button (25); and a limiting hole (29) is provided on the cover plate (17).

9. A power-assisted driving wheel, characterized in that: The invention comprises a motor as claimed in any one of claims 1 to 8 and a tire (19) wrapped around the outside of the motor, the motor being fixed to a support plate (20) by means of a screw (5), the support plate (20) being slidably connected to a bracket (3), a screw (21) being rotatably connected inside the bracket (3), the support plate (20) being threadably connected to the screw (21), the bracket (3) being fixed to a side of a box body (1), the screw (21) being fixedly connected to a rotating rod (2), and a walking assist device being installed inside the box body (1).

10. A cleaning walking mechanism, characterized in that: Including the power-assisted driving wheel as described in claim 9.

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