Driving structure and automatic walking device having the driving structure

Abstract

The present invention provides a driving structure and an automatic walking device having the driving structure, wherein the automatic walking device comprises an equipment body, a driving structure installed on the equipment body to drive the equipment body to walk, the driving structure comprises a power output module, and a walking wheel that can be driven by the power output of the power output module to drive the walking device to walk, the power output module comprises a driving shaft and a driving gear arranged on the driving shaft, the walking wheel comprises a wheel hub, the inner side of the wheel hub is provided with internal teeth, the number of teeth of the driving gear is less than the number of teeth of the internal teeth, and the driving gear directly meshes with the internal teeth to drive the walking wheel to rotate. Compared with the prior art, the driving structure of the automatic walking device of the present invention utilizes the driving gear to directly mesh with the internal teeth to drive the walking wheel to rotate, and has the advantages of fewer parts, simple structure, and low cost.

Description

Technical Field

[0001] The invention relates to gardening equipment, in particular to gardening equipment which can move independently. Background Art

[0002] A robot lawn mower is a robotic garden tool for maintaining lawns, and it uses lithium batteries as its power source. As robot lawn mowers become more and more common in the market, competition is becoming increasingly fierce. To gain a larger share in the market, it is necessary to have more advantages in terms of cost, design, performance, etc. As robot lawn mowers become more and more mature and more and more commonly used, all companies face problems such as high manufacturing costs, difficulty in technological innovation, and traditional design methods in terms of robot lawn mowers.

[0003] The existing driving device includes a driving motor, a gear reduction box and a driving wheel, wherein the driving motor and the gear reduction box are installed inside the machine, and a transmission shaft extends from the gear reduction box and is connected to the driving wheel to drive the machine. However, this type of driving device has the disadvantages of more parts, complex structure and high cost.

[0004] In view of this, it is indeed necessary to improve the existing driving device to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a driving structure which has the advantages of fewer parts, simple structure and low cost.

[0006] To achieve the above-mentioned purpose, the present invention provides a driving structure, which can drive an automatic walking device to walk, the driving structure includes a power output module, and a walking wheel that can be driven by the power output of the power output module to drive the automatic walking device to walk, the power output module includes a driving shaft and a driving gear arranged on the driving shaft, the walking wheel includes a wheel hub, the inner side of the wheel hub is provided with internal teeth, the number of teeth of the driving gear is less than the number of teeth of the internal teeth, and the driving gear directly meshes with the internal teeth to drive the walking wheel to rotate.

[0007] As a further improvement of the present invention, the driving gear is coaxially arranged on the driving shaft, and the axis of the driving shaft is parallel to the axis of the rotating shaft of the walking wheel and is spaced apart from each other.

[0008] As a further improvement of the present invention, the power output module includes a pair of drive motors, each of the drive motors is provided with a drive shaft, each drive shaft is provided with a drive gear, and a pair of walking wheels are also provided, each walking wheel is provided with an internal tooth, so that the drive gears respectively drive the corresponding walking wheels to rotate.

[0009] As a further improvement of the present invention, the pair of driving motors are arranged at intervals along the axial direction of the driving shaft.

[0010] As a further improvement of the present invention, the driving structure further includes a control center for controlling the operation of the driving motor, and a cable connecting the control center and the driving motor.

[0011] Another object of the present invention is to provide an automatic walking device, which has the advantages of fewer parts, simple structure and low cost.

[0012] To achieve the above-mentioned purpose, the present invention provides an automatic walking device, including a device body, a driving structure installed on the device body to drive the device body to walk, the driving structure includes a power output module, and a walking wheel that can be driven by the power output of the power output module to drive the automatic walking device to walk, the power output module includes a driving shaft and a driving gear arranged on the driving shaft, the walking wheel includes a wheel hub, the inner side of the wheel hub is provided with internal teeth, the number of teeth of the driving gear is less than the number of teeth of the internal teeth, and the driving gear directly meshes with the internal teeth to drive the walking wheel to rotate.

[0013] As a further improvement of the present invention, the driving gear is coaxially arranged on the driving shaft, and the axis of the driving shaft is parallel to the axis of the rotating shaft of the walking wheel and is spaced apart from each other.

[0014] As a further improvement of the present invention, the power output module includes a pair of drive motors, each of the drive motors is provided with a drive shaft, each drive shaft is provided with a drive gear, and a pair of walking wheels are also provided, each walking wheel is provided with an internal tooth, so that the drive gears respectively drive the corresponding walking wheels to rotate.

[0015] As a further improvement of the present invention, the pair of drive motors are installed outside the device body, and the pair of drive motors are arranged at intervals along the axial direction of the drive shaft.

[0016] As a further improvement of the present invention, the automatic walking device further includes a control center housed inside the device body for controlling the operation of the drive motor, and a cable connecting the control center and the drive motor.

[0017] The beneficial effects of the present invention are as follows: the automatic walking device of the present invention drives the walking wheel to rotate by directly meshing the driving gear with the internal teeth, thereby realizing the self-walking of the automatic walking device, and has the advantages of fewer parts, simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a three-dimensional diagram of the automatic walking device of the present invention.

[0019] Figure 2 yes Figure 1 The three-dimensional image of the automatic walking device after revealing its internal structure.

[0020] Figure 3 yes Figure 1 A cross-sectional view of the driving structure of the automatic walking device shown.

[0021] Figure 4 yes Figure 3 A three-dimensional view of the power output module of the drive structure shown in FIG. 1 when it is engaged with the travel wheel.

[0022] Figure 5 yes Figure 4 A three-dimensional view of the power output module of the drive structure shown. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1-5 As shown, the present invention discloses an automatic walking device 100, which can be driven to perform gardening work, and the automatic walking device 100 includes a device body 101 and a driving structure 102 installed on the device body 101 to drive the device body 101 to walk. In this embodiment, the automatic walking device 100 is a lawn mower, and of course it can also be other types of garden tools that can walk automatically, which is not limited here.

[0025] The driving structure 102 includes a power output module 10, and a walking wheel 20 that can be driven by the power output of the power output module 10 to drive the automatic walking device 100 to walk. The power output module 10 includes a driving shaft 11 and a driving gear 12 arranged on the driving shaft 11, and the driving gear 12 is arranged on the outside of the device body 101. The walking wheel 20 includes a wheel hub 21 arranged on the outside of the device body 101, and the inner side of the wheel hub 21 is provided with internal teeth 22.

[0026] The driving gear 12 is directly meshed with the inner teeth 22, so that the driving shaft 11 can be used to drive the driving gear 12 to rotate, so that the driving gear 12 directly drives the inner teeth 22 to rotate, and then drives the running wheel 20 to rotate, so as to realize the running of the automatic running device 100. In this embodiment, the number of teeth of the driving gear 12 is less than the number of teeth of the inner teeth 22, so that the rotation speed of the running wheel 20 can be reduced.

[0027] Compared with the prior art, the present invention eliminates the structure in which the driving gear is decelerated by the gear box and then meshes with the internal teeth in the traditional driving structure, thereby reducing the manufacturing cost of the product. At the same time, it changes the transmission design in this field and realizes technological innovation.

[0028] In this embodiment, the driving gear 12 is coaxially arranged on the driving shaft 11, and the axis of the driving shaft 11 is parallel to the axis of the rotating shaft of the walking wheel 20 and is arranged at intervals from each other. The power output module 10 includes a pair of driving motors 13, which are arranged at intervals from left to right along the axis direction of the driving shaft 11, each of the driving motors 13 is connected to a driving shaft 11, and each of the driving shafts 11 is provided with a driving gear 12.

[0029] Correspondingly, a pair of the travel wheels 20 are also provided and are spaced apart on both sides of the equipment body 101, and each travel wheel 20 is provided with internal teeth 22, so that each driving gear 12 can be meshed with the internal teeth 22 of the corresponding travel wheel 20 to drive the corresponding travel wheel 20 to travel, thereby realizing power transmission. In the present invention, the driving motor 13 and the travel wheel 20 are combined into one component, which has the advantages of simplifying the installation method, reducing the production, transportation and management costs, etc.

[0030] Compared with the traditional technical solution that the drive motors are installed inside the machine, the present invention installs a pair of drive motors 13 outside the device body 101, which has the advantages of convenient and flexible replacement. This is because the drive motors 13 are consumable parts and often need to be disassembled and replaced.

[0031] like Figure 2 As shown, the automatic walking device 100 further includes a control center 14 contained in the device body 101 for controlling the operation of the drive motor 13, and a cable 15 connecting the control center 14 and the drive motor 13. The control center 14 is used to control the operation of the drive motor 13, thereby realizing the walking, turning, etc. of the automatic walking device 100.

[0032] Furthermore, the automatic walking device 100 also includes a battery (not shown) installed on the device body 101, such as a lithium battery, to provide working energy for the drive motor 13. Of course, the automatic walking device 100 can also be powered by an external power supply, which is not limited here.

[0033] To sum up, the driving structure 102 of the automatic walking device 100 of the present invention designs the driving gear 12 to directly mesh with the internal teeth 22 of the walking wheel 20, so as to drive the walking wheel 20 to walk. It not only has the advantages of fewer parts and simple structure, but also changes the transmission design in this field and realizes technological innovation.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A driving structure capable of driving an automatic walking device to walk, the driving structure comprising a power output module and a walking wheel that can be driven by power output by the power output module to drive the automatic walking device to walk, Features: The power output module includes a drive shaft and a drive gear coaxially arranged on the drive shaft, the travel wheel includes a wheel hub, the inner side of the wheel hub is provided with internal teeth, the number of teeth of the drive gear is less than the number of teeth of the internal teeth, and the drive gear directly meshes with the internal teeth to drive the travel wheel to rotate; the power output module also includes a pair of drive motors, each of the drive motors is provided with a drive shaft, each drive shaft is provided with a drive gear, and the travel wheels are also provided with a pair, each travel wheel is provided with an internal tooth, so that the drive gears respectively drive the corresponding travel wheels to rotate.

2. The driving structure according to claim 1, Features: The axis of the driving shaft is parallel to the axis of the rotating shaft of the walking wheel and is spaced apart from each other.

3. The driving structure according to claim 1, Features: The pair of driving motors are arranged at intervals along the axial direction of the driving shaft.

4. The driving structure according to claim 1, Features: The driving structure further includes a control center for controlling the operation of the driving motor, and a cable connecting the control center and the driving motor.

5. An automatic walking device, comprising a device body, a driving structure mounted on the device body to drive the device body to walk, the driving structure comprising a power output module, and a walking wheel that can be driven by the power output of the power output module to drive the automatic walking device to walk, Features: The power output module includes a drive shaft and a drive gear coaxially arranged on the drive shaft, the travel wheel includes a wheel hub, the inner side of the wheel hub is provided with internal teeth, the number of teeth of the drive gear is less than the number of teeth of the internal teeth, and the drive gear directly meshes with the internal teeth to drive the travel wheel to rotate; the power output module also includes a pair of drive motors, each of the drive motors is provided with a drive shaft, each drive shaft is provided with a drive gear, and the travel wheels are also provided with a pair, each travel wheel is provided with an internal tooth, so that the drive gears respectively drive the corresponding travel wheels to rotate.

6. The automatic walking device according to claim 5, Features: The axis of the driving shaft is parallel to the axis of the rotating shaft of the walking wheel and is spaced apart from each other.

7. The automatic walking device according to claim 5, Features: The pair of driving motors are installed outside the device body, and the pair of driving motors are spaced apart along the axial direction of the driving shaft.

8. The automatic walking device according to claim 5, Features: The automatic walking device further includes a control center housed inside the device body for controlling the operation of the drive motor, and a cable connecting the control center and the drive motor.

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