A drive system for a weeding machine, a weeding machine

Abstract

This application relates to the field of weed cutters, and provides a drive system for a weed cutter and a weed cutter. The drive system includes: a frame, with front wheels and rear wheels mounted below the frame along its forward and reverse directions; the frame includes a horizontal housing and a swing housing, the swing housing being rotatably connected about a pivot horizontally mounted on the horizontal housing; a drive component; a horizontal cutting assembly, which is driven to the output end of the drive component via a first belt drive assembly, the horizontal cutting assembly being driven to the swing cutting assembly via a first spline joint; and a rear-drive gearbox, which is driven to one end of a travel drive shaft, the other end of which is driven to the front wheel via a second spline joint. The horizontal cutting assembly and the swing cutting assembly are driven by the same drive component, which is used as the drive source during movement, thus reducing device costs, enabling smoother start and stop operations, and allowing for easy addition of a reverse function to the entire machine.

Description

Technical Field

[0001] This application relates to the field of lawn mowers, and more particularly to a drive system for a lawn mower and a lawn mower. Background Technology

[0002] Traditional lawnmowers typically consist of a main body and a weeding mechanism located at the bottom of the main body. The main body includes a frame, wheels mounted below the frame, and a motor mounted on the frame, which drives the frame forward and backward. The weeding mechanism includes a drive motor and cutting blades mounted on the drive motor's drive shaft and rotating with the drive shaft. The lawnmower uses the rotational motion of the cutting blades to drive the weeding mechanism to perform the mowing operation. Therefore, traditional lawnmowers typically have at least two motors, one for driving the lawnmower's movement and the other for rotating the blades. This design increases production costs and makes it difficult to arrange the components and maintain the machine's balance.

[0003] In addition, when clearing weeds on the field ridges, it is necessary to trim the weeds on the surface of the ridges (i.e. the plane that people directly contact when walking) as well as the weeds on the sides of the ridges. Existing weeding machines have blind spots and cannot effectively remove weeds in the edge areas such as the outer side of the ridges. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this application provides a drive system for a weed cutter, characterized in that it includes:

[0005] A frame, with front and rear wheels mounted below it along its forward and backward direction, the frame including a horizontal housing and a swing housing, the swing housing being rotatably connected about a pivot horizontally mounted on the horizontal housing;

[0006] The drive unit is mounted on the frame;

[0007] The horizontal cutting assembly is connected to the output end of the drive component via a first belt drive assembly. The horizontal cutting assembly is connected to the swing cutting assembly via a first spline pair. The swing cutting assembly is mounted on the swing housing.

[0008] The rear-wheel drive gearbox is connected to the output end of the drive unit via a second belt drive assembly. The rear-wheel drive gearbox is connected to one end of the travel drive shaft, and the other end of the travel drive shaft is connected to the front wheel via a second spline pair.

[0009] The first belt drive assembly, the second belt drive assembly, and the rear-drive gearbox are located on the first side of the wheel hub, and the swing cutting assembly is located on the second side of the wheel hub. The first side and the second side are opposite sides of the wheel hub.

[0010] In one possible implementation, the two ends of the first spline pair are respectively connected to the horizontal cutting assembly and the oscillating cutting assembly via universal joints.

[0011] In one possible implementation, the two ends of the second spline pair are respectively connected to the travel drive shaft and the front wheel drive via universal joints.

[0012] In one possible implementation, a lever is also included. The middle section of the lever is connected to a section of the horizontal housing to form a hinge structure. The front section of the lever can be selectively engaged with a height adjustment limit plate. The height adjustment limit plate has multiple notches along the height direction that are adapted to the lever. The rear section of the lever is fixedly connected to the front wheel bracket, and the front wheel is engaged in the front wheel bracket.

[0013] In one possible implementation, a locking member extends through the rear section of the lever along the slotted direction of the notch and locks the front wheel bracket, while an elastic member abuts between the locking member and the lever.

[0014] In one possible implementation, the first belt drive assembly includes a first belt, the other end of which, away from the output end of the drive member, forms a belt drive with the horizontal cutting assembly.

[0015] In one possible implementation, the second belt drive assembly includes a second belt, the other end of which is away from the output end of the drive member and forms a belt drive with the output end of the rear drive gearbox. The output sprocket of the rear drive gearbox is coaxially driven with the rear wheel through the rear drive shaft, and the rear drive shaft is connected to the travel drive shaft through the travel gearbox.

[0016] In one possible implementation, both the horizontal cutting assembly and the oscillating cutting assembly include: a cutter head shaft; a cutter head, wherein the cutter head shaft is inserted into the center of the cutter head and can rotate about the axial direction of the cutter head shaft, and a plurality of cutting blades are arranged at intervals around the edge of the cutter head; and a protective cover, wherein the cutter head is provided with a protective cover that forms a closed area and covers the cutter head shaft.

[0017] This application also provides a weeding machine, including the drive system of the aforementioned weeding machine.

[0018] Compared with the prior art, the beneficial effects of this application are:

[0019] 1. The horizontal cutting assembly and the oscillating cutting assembly are driven by the same engine, which is also used as the driving source during movement, thus reducing engine purchase costs. Furthermore, when the front and rear wheels share a single drive unit as a power source, the device can start and stop more smoothly, and a reversing function can be easily added, thereby improving the overall usability and efficiency of the machine. The first belt drive assembly, the second belt drive assembly, and the rear-drive gearbox are located on the first side of the wheel hub, and the oscillating cutting assembly is located on the second side of the wheel hub. The first and second sides are opposite sides of the wheel hub. Here, "wheel hub" refers to the front and rear wheels. This design helps to balance the weight on both sides of the wheel hub, enhancing the stability of the device.

[0020] 2. The rear wheel and front wheel are connected by a second spline joint and universal joints as the torque transmission mechanism. The second spline joint has a certain amount of axial extension and retraction, and universal joints are installed at both ends of the second spline joint. Therefore, the position of the front wheel can move within a certain range. When it is necessary to adjust the height of the cutter head, the user pulls the lever, pulling the front part of the lever out of the notch. At this time, the lever can rotate around the hinge point, causing the front wheel to move up and down, changing the overall height of the frame, and thus changing the overall height of the cutter head.

[0021] 3. The locking element is a locking bolt, and the elastic element is a compression spring. When the user pulls the lever out of the notch, the compression spring is further compressed, giving it a certain elastic potential energy. The compression spring presses against the front part of the lever, causing the lever to tend to engage in the notch. This design facilitates the lever's return to its original position and prevents the lever from falling out of the notch. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A side view of the drive system of the weed cutter is shown;

[0024] Figure 2 A schematic diagram of the drive system of a weed cutter after the drive components have been removed is shown.

[0025] Figure 3 A schematic diagram of the swing housing section is shown;

[0026] Figure 4 A schematic diagram of the horizontal cutting assembly and the oscillating cutting assembly is shown.

[0027] Figure 5 A schematic diagram of the lever, locking bolt, and compression spring is shown.

[0028] Figure 6 A schematic diagram of the swing cutting assembly is shown.

[0029] Explanation of key component symbols:

[0030] 1-Horizontal housing; 2-Front wheel; 3-Rear wheel; 4-Swing housing; 5-Support plate; 6-Pivot; 7-Drive component; 8-First belt; 9-Second belt; 10-First spline joint; 11-Universal joint; 12-Rear drive gearbox; 13-Second spline joint; 14-Front wheel bracket; 15-Horizontal tool holder reduction gearbox; 16-Travel drive shaft; 17-Lever; 18-Height adjustment limit plate; 19-Locking bolt; 20-Cutter disc shaft; 21-Cutter disc; 22-Cutter blade; 23-Protective cover; 24-Compression spring; 25-Swing tool holder reduction gearbox; 26-Cutting output shaft; 27-Horizontal cutting assembly; 28-Swing cutting assembly. Detailed Implementation

[0031] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0032] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying 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 description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] Example 1

[0037] Traditional lawnmowers typically consist of a main body and a weeding mechanism located at the bottom of the main body. The main body includes a frame, wheels mounted below the frame, and a motor mounted on the frame, which drives the frame forward and backward. The weeding mechanism includes a drive motor and cutting blades mounted on the drive motor's drive shaft and rotating with the drive shaft. The lawnmower uses the rotational motion of the cutting blades to drive the weeding mechanism to perform the mowing operation. Therefore, traditional lawnmowers typically have at least two motors, one for driving the lawnmower's movement and the other for rotating the blades. This design increases production costs and makes it difficult to arrange the components and maintain the machine's balance.

[0038] In addition, when clearing weeds on the field ridges, it is necessary to trim the weeds on the surface of the ridges (i.e. the plane that people directly contact when walking) as well as the weeds on the sides of the ridges. Existing weeding machines have blind spots and cannot effectively remove weeds in the edge areas such as the outer side of the ridges.

[0039] To address the above problems, a drive system for a weeder is proposed, aiming to provide a drive system that enables smoother starting and stopping of the weeder, and allows it to perform weeding operations on field ridges with varying side slopes. (Wheel hub)

[0040] Please see Figures 1-6 This application provides a drive system for a weed cutter, the drive system comprising: a frame, a drive component 7, a horizontal cutting assembly 27, and a rear-drive gearbox 12.

[0041] The frame includes a horizontal housing 1, a swing housing 4, and a support plate 5. A front wheel 2 and a rear wheel 3 are mounted below the horizontal housing 1 along its forward and backward direction. A horizontal cutting assembly 27 is fixedly mounted on the horizontal housing 1, and a swing cutting assembly 28 is fixedly mounted on the swing housing 4. The horizontal cutting assembly 27 is used to clear weeds from the surface of the field ridges, and the swing cutting assembly 28 is used to clear weeds from the sides of the field ridges. A drive unit 7, serving as the power source for the entire machine, is mounted on the support plate 5. The drive unit 7 can be a diesel engine with an air-cooled or water-cooled structure, or an electric motor. The support plate 5 is located at the rear of the machine and is higher than the horizontal housing 1 and the swing housing 4 above the ground. The swing housing 4 is rotatably connected about a pivot 6 horizontally mounted on the horizontal housing 1, allowing the swing housing 4 to swing vertically up and down about the pivot 6.

[0042] A hinge structure is formed between the swing housing 4, the pivot 6, and the horizontal housing 1. The swing housing 4, as the swingable part of this structure, determines the swing amplitude according to the slope of the field ridge, so that the swing cutting component 28 installed on the swing housing 4 can effectively cover the weeds on the side of the field ridge when cutting, thus clearing the blind spots that are difficult to handle by ordinary weeders. When the user uses this device to weed on the field ridge, the swing housing 4 is located outside the field ridge, and the swing housing 4 can be tilted at a certain angle relative to the horizontal plane. The specific tilt angle depends on the slope of the field ridge, so that the blade 21 of the swing cutting component 28 can fit against the weeds on the outside of the field ridge.

[0043] In some application scenarios, the horizontal housing 1 and the swing housing 4 are roughly on the same horizontal plane. At this time, the whole machine is equivalent to two weeding mechanisms with two blades 21 arranged side by side (horizontal cutting component 27 and swing cutting component 28). Although it cannot weed the blind area with slope on the outside of the field ridge, it is equivalent to increasing the coverage area of ​​the blades, which is suitable for weeding the walking surface of wider field ridges.

[0044] The horizontal cutting assembly 27 is connected to the output end of the drive component 7 via the first belt drive assembly, and the horizontal cutting assembly 27 is connected to the swing cutting assembly 28 via the first spline pair 10.

[0045] Specifically, the horizontal cutting assembly 27 includes a horizontal tool holder reducer 15 and a cutter 22. The horizontal tool holder reducer 15 is a single-input, dual-output reducer. The two outputs can be achieved internally through a worm gear structure or a gear splitting structure. One output end of the horizontal tool holder reducer 15 is connected to the cutter 22 for transmission, and the other input end transmits torque to the oscillating cutting assembly 28 through the first spline joint 10.

[0046] The first spline pair 10 includes a spline shaft and a spline sleeve fitted onto the surface of the spline shaft. Universal joints 11 are installed at both ends of the spline sleeve, connecting the output end of the horizontal tool holder reducer 15 and the input end of the oscillating tool holder reducer 25 via the two universal joints 11. The oscillating tool holder reducer 25 is part of the oscillating cutting assembly 28 and is used to transmit torque to the cutter 22 portion of the oscillating cutting assembly 28. Since the spline connection does not restrict axial movement between the spline shaft and the spline sleeve, the spline shaft can slide and extend within the spline sleeve, allowing the position of the oscillating housing to change without affecting the torque transmission of the first spline pair 10. Simultaneously, the universal joints 11 increase the degrees of freedom at both ends of the first spline pair 10, allowing the oscillating housing 4 to oscillate within a large angle range.

[0047] The rear-wheel drive gearbox 12 is connected to the output end of the drive unit 7 via a second belt drive assembly. The rear-wheel drive gearbox 12 is connected to one end of the travel drive shaft 16, and the other end of the travel drive shaft 16 is connected to the front wheel 2 via a second spline pair 13.

[0048] Specifically, the output sprocket center of the rear-drive gearbox 12 and the center of the rear wheel 3 are connected by the rear-drive shaft, forming a coaxial transmission. The other end of the rear-drive shaft is connected to one end of the drive shaft 16 via a reduction gearbox. The other end of the drive shaft 16 is connected to one end of the second spline joint 13 via a universal joint 11. The other end of the second spline joint 13 is equipped with a front wheel bracket 14, and the front wheel 2 is engaged in the front wheel bracket 14. It can be understood that, since the spline joint has a certain amount of flexibility, this design is beneficial for adjusting the position of the front wheel 2.

[0049] In some preferred embodiments, the two ends of the second spline pair 13 are respectively connected to the travel drive shaft 16 and the front wheel 2 via universal joints 11, and the universal joints 11 are used to further increase the degrees of freedom at both ends of the second spline pair 13.

[0050] The first belt drive assembly, the second belt drive assembly, and the rear-drive gearbox 12 are located on the first side of the wheel hub, and the swing cutting assembly 28 is located on the second side of the wheel hub. The first side and the second side are opposite sides of the wheel hub. Here, the wheel hub refers to the front wheel 2 and the rear wheel 3. This design helps to balance the weight on both sides of the wheel hub and enhances the stability of the device.

[0051] Understandably, since the horizontal cutting assembly 27 and the oscillating cutting assembly 28 are driven by the same engine, and this engine is used as the driving source during movement, the purchase cost of the engine can be reduced. Furthermore, when the front wheel 2 and the rear wheel 3 share a single drive unit 7 as a power source, the device can start and stop more smoothly, and a reversing function can be easily added to the entire machine, thereby improving the overall usability and working efficiency.

[0052] In some embodiments, the weed cutter includes a lever 17, the middle section of which is connected to a section of the horizontal housing 1 to form a hinge structure. The front section of the lever 17 can be selectively engaged with a height adjustment limit plate 18. The height adjustment limit plate 18 has a plurality of notches along the height direction that are adapted to the lever 17. The rear section of the lever 17 is fixedly connected to a front wheel bracket 14, and the front wheel 2 is engaged in the front wheel bracket 14.

[0053] It should be noted that the height of the cutter head 21 needs to be adjusted when the weeder is in operation. If the cutter head 21 is too low, the device may hit the bottom and be damaged. If the cutter head 21 is too high, it will not be conducive to removing weeds.

[0054] Since the rear wheel 3 and the front wheel 2 are connected by a second spline pair 13 and a universal joint 11 as a linkage mechanism for transmitting torque, and the second spline pair 13 has a certain amount of extension and retraction in its axial direction, and universal joints 11 are installed at both ends of the second spline pair 13, the position of the front wheel 2 can move within a certain range.

[0055] When the height of the cutter head 21 needs to be adjusted, the user pulls the lever 17 and pulls the front part of the lever 17 out of the notch. At this time, the lever 17 can rotate around the hinge point, which drives the front wheel 2 to move up and down, thereby changing the overall height of the frame and thus changing the overall height of the cutter head 21.

[0056] In some embodiments, a locking member extends through the rear section of the lever 17 along the slotted direction of the notch and is locked to the front wheel bracket 14, with an elastic member abutting between the locking member and the lever 17.

[0057] Specifically, the locking element is a locking bolt 19, and the elastic element is a compression spring 24. The tail of the locking bolt 19 passes through the lever 17 and is fixed to the front wheel bracket 14. A washer is fitted onto the head of the locking bolt 19, and there is a small gap between the washer and the lever 17. The compression spring 24 is compressed within this gap. When the user pulls the lever 17 out of the notch, the compression spring 24 is further compressed, giving it a certain elastic potential energy. The compression spring 24 presses against the front section of the lever 17, causing the lever 17 to tend to engage in the notch. When the user readjusts the height of the front section of the lever 17 and stops pulling it, the front section of the lever 17 swings towards the notch side under the action of the compression spring 24. This design facilitates the return of the lever 17 to its original position and prevents it from falling out of the notch.

[0058] In some embodiments, the first belt drive assembly includes a first belt 8, the other end of the first belt 8 away from the output end of the drive member 7 forming a belt drive with the horizontal cutting assembly 27.

[0059] Specifically, a pulley is installed on the output end of the drive unit 7, and the first belt drive assembly includes a first belt 8 with one end wound around the pulley. The other end of the first belt 8, away from the pulley, is wound and connected to a pulley plate. One end of the cutting output shaft 26 is fixedly inserted into the center of the pulley plate, and the other end of the cutting output shaft 26, away from the pulley plate, is inserted into the input gear of the horizontal cutting assembly 27. In some preferred embodiments, a tensioning pulley for adjusting the tension of the first belt 8 is also abutted against it.

[0060] In some embodiments, the second belt drive assembly includes a second belt 9, the other end of the second belt 9 away from the output end of the drive member 7 and the output end of the rear drive gearbox 12 form a belt drive, the output sprocket of the rear drive gearbox 12 is coaxially driven with the rear wheel 3 through the rear drive shaft, and the rear drive shaft is connected to the travel drive shaft 16 through the travel gearbox.

[0061] Specifically, a second belt 9 is wound around the pulley at the output end of the drive unit 7. The other end of the second belt 9, away from the pulley, is wound around the input shaft of the rear-drive gearbox 12 to form a belt drive. The center of the output sprocket of the rear-drive gearbox 12 and the center of the rear wheel 3 are connected by the rear drive shaft to form a coaxial drive. The other end of the rear drive shaft is connected to one end of the travel drive shaft 16 by extending into the reduction gearbox.

[0062] In some embodiments, both the horizontal cutting assembly 27 and the oscillating cutting assembly 28 include: a cutter head shaft 20; a cutter head 21, wherein the cutter head shaft 20 is inserted into the center of the cutter head 21 and can rotate about the axial direction of the cutter head shaft 20, and a plurality of cutting blades 22 are arranged at intervals around the edge of the cutter head 21; and a protective cover 23, wherein the cutter head 21 is provided with a protective cover 23 that forms a closed area and covers the cutter head shaft 20.

[0063] Specifically, the cutter head 21 has mounting holes and multiple first connecting holes. The mounting holes are located at the center of the cutter head 21 and are used to accommodate the cutter head shaft 20, allowing the cutter head 21 to be connected to the cutter head shaft 20. At least two sets of first connecting holes are spaced apart along the circumference of the cutter head 21. A set of second connecting holes passes through the body of the cutter 22, and each set of first connecting holes corresponds to a second connecting hole. Bolts, acting as fasteners, pass through the corresponding first and second connecting holes to fix the body of the cutter 22 to the cutter head 21. A funnel-shaped protective cover 23 covers the cutter head shaft 20 to prevent flying weeds from tangling around it.

[0064] In other embodiments, this application also provides a weeding machine including the above-described drive system.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0066] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A drive system for a weeding machine, characterized in that, include: A frame, with front and rear wheels mounted below it along its forward and backward direction, the frame including a horizontal housing and a swing housing, the swing housing being rotatably connected about a pivot horizontally mounted on the horizontal housing; The drive unit is mounted on the frame; The horizontal cutting assembly is connected to the output end of the drive component via a first belt drive assembly. The horizontal cutting assembly is connected to the swing cutting assembly via a first spline pair. The swing cutting assembly is mounted on the swing housing. The rear-wheel drive gearbox is connected to the output end of the drive unit via a second belt drive assembly. The rear-wheel drive gearbox is connected to one end of the travel drive shaft, and the other end of the travel drive shaft is connected to the front wheel via a second spline pair. The first belt drive assembly, the second belt drive assembly, and the rear-drive gearbox are located on the first side of the wheel hub, and the swing cutting assembly is located on the second side of the wheel hub. The first side and the second side are opposite sides of the wheel hub.

2. The drive system of the weeder according to claim 1, characterized in that, The first spline joint is connected to the horizontal cutting assembly and the swing cutting assembly at both ends via universal joints.

3. The drive system of the weeder according to claim 1, characterized in that, The two ends of the second spline joint are respectively connected to the travel drive shaft and the front wheel drive via universal joints.

4. The drive system of the weeder according to claim 1, characterized in that, It also includes a lever, the middle section of which is connected to a section of the horizontal housing to form a hinge structure. The front section of the lever can be selectively engaged with a height adjustment limit plate. The height adjustment limit plate has multiple notches along the height direction that are adapted to the lever. The rear section of the lever is fixedly connected to the front wheel bracket, and the front wheel is engaged in the front wheel bracket.

5. The drive system of the weeder according to claim 4, characterized in that, A locking element extends through the rear section of the lever along the slotted direction of the notch and locks the front wheel bracket, while an elastic element abuts between the locking element and the lever.

6. The drive system of the weeder according to claim 1, characterized in that, The first belt drive assembly includes a first belt, and the other end of the first belt away from the output end of the drive member forms a belt drive with the horizontal cutting assembly.

7. The drive system of the weeder according to claim 1, characterized in that, The second belt drive assembly includes a second belt, the other end of which is away from the output end of the drive unit and forms a belt drive with the output end of the rear drive gearbox. The output sprocket of the rear drive gearbox is coaxially driven with the rear wheel through the rear drive shaft, and the rear drive shaft is connected to the travel drive shaft through the travel gearbox.

8. The drive system of the weeder according to claim 1, characterized in that, Both the horizontal cutting assembly and the oscillating cutting assembly include: Cutter head shaft; A cutter head, wherein the cutter head shaft is inserted at the center of the cutter head and can rotate around the axial direction of the cutter head shaft, and a plurality of cutting blades are arranged at intervals around the edge of the cutter head; A protective cover is installed upward on the cutter head to form a closed area and cover the cutter head shaft.

9. A weeding machine, characterized in that, The drive system of the weeder included in any one of claims 1-8.

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