Self-walking extended-range type flail imitation narrow-width wide tea garden weeding machine
The self-propelled extended-range, blade-following narrow-width tea garden weeder, using a tracked universal chassis and limiting components, solves the problem that tea garden weeding machinery cannot adapt to narrow tea ridges, achieving efficient weeding and blade protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAZHONG AGRI UNIV
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-21
AI Technical Summary
Existing tea garden weeding machinery is not suitable for narrow and winding tea ridges, resulting in high labor intensity, low efficiency, and easy damage to the blades.
Design a self-propelled extended-range, blade-following, narrow-width tea garden weeder. It adopts a tracked universal chassis, power supply system, and lifting components for the weeding parts, combined with limiting components to ensure that the blades maintain a minimum distance from the ground, adapting to the tea garden terrain.
It enables efficient weeding in tea gardens, reduces labor intensity, improves the level of mechanized operations, protects cutting tools, and adapts to complex terrain.
Smart Images

Figure CN224521782U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural equipment, specifically a self-propelled, range-extending, blade-following, narrow-width tea garden weeding machine. Background Technology
[0002] China is a major tea-producing region and one of the world's largest tea growers, consumers, and exporters. However, the narrow and winding tea ridges, coupled with steep slopes in tea-growing areas, make mechanized field operations difficult, resulting in low mechanization levels, particularly in weeding. Currently, weeding machinery used in tea gardens includes hand-held and backpack models, both requiring manual assistance, which is labor-intensive and inefficient. Most small weeders on the market have a width of ≥900mm, suitable for orchard weeding and land reclamation, but tea ridge widths are generally ≤650mm, making them unsuitable for tea gardens. Without stop mechanisms, weed stubble height is high, and the blades are damaged when they touch the ground. Therefore, this paper proposes a self-propelled, extended-range, sweeping, narrow-width tea garden weeder with a width ≤600mm to adapt to tea ridge widths, facilitating inter-ridge operations and turning within the field. The addition of stop mechanisms allows for better adaptation to uneven terrain, reducing labor intensity and costs, addressing the labor shortage in tea gardens, and improving tea quality and yield. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a self-propelled extended-range, blade-following, narrow-width tea garden weeding machine to address the above-mentioned shortcomings.
[0004] To solve the above technical problems, the present invention adopts the following technical solution:
[0005] A self-propelled, range-extended, blade-following, narrow-width tea garden weeder includes a tracked universal chassis, a power supply system, a weeding working component, and a weeding component lifting component. The power supply system, weeding working component, and weeding component lifting component are all mounted on the tracked universal chassis. The power supply system provides electrical energy to the power supply system, weeding working component, and weeding component lifting component. The tracked universal chassis drives the weeder forward along the ground. The weeding working component uses blades to remove weeds. A limit component is provided at the front end of the weeding working component to limit the minimum distance between the blades and the ground. The weeding component lifting component is connected to the weeding working component and rotates the weeding working component in a vertical plane, causing the front weeding blades to rise or fall.
[0006] Furthermore, the tracked universal chassis includes a mounting plate, a left motor drive wheel, a right motor drive wheel, a first left driven wheel, a second left driven wheel, a third left driven wheel, a first right driven wheel, a second right driven wheel, a third right driven wheel, a left inner track plate, a left outer track plate, a right inner track plate, a right outer track plate, a left rubber track, a right rubber track, a front mounting plate, a supporting square steel, a left bolt screw mechanism, a right bolt screw mechanism, a left motor, a right motor, and a front crossbeam. The drive wheel of the left motor is fastened to the left inner track plate and the left outer track plate by wheel axle seat bolts, and the drive wheel of the right motor is fastened to the right inner track plate and the right outer track plate by wheel axle seat bolts. The first left driven wheel, the second left driven wheel, and the third left driven wheel are fastened to the left inner track plate, the right outer track plate, and the left outer track plate by short shafts, screws, and bearings. The inner track plate, the outer left track plate, the first right driven wheel, the second right driven wheel, and the third right driven wheel are fastened to the inner right track plate and the outer right track plate by short shafts, screws, and bearings. The third left driven wheel tensions the left rubber track by a left bolt screw mechanism, and the third right driven wheel tensions the right rubber track by a right bolt screw mechanism. The front crossbeam passes through the inner left track plate, the outer left track plate, the inner right track plate, and the outer right track plate and is reinforced by welding. The front mounting plate is welded to the inner left track plate and the inner right track plate, and the mounting plate is connected to the supporting square steel by welding. The left motor and the right motor are connected to the left motor drive wheel and the right motor drive wheel respectively by bearings. The other side of the left motor and the right motor are fastened to the inner left track plate and the inner right track plate respectively by screws.
[0007] Furthermore, the power supply system includes a generator support frame, a generator, a first V battery, a second V battery, a diesel engine, a starting battery, a first belt, a second belt, and a third belt. The generator is fixed to the generator support frame by bolts with both positive and negative threads. The diesel engine is connected to the generator through the first belt to extend the track travel range. The starting battery is fixed to the mounting plate by bolts.
[0008] Furthermore, the weeding working component includes a weeding blade cover, a weeding blade shaft, a swivel blade, a limiting component, and a mud-blocking chain. The swivel blade is connected to the weeding blade shaft via a pin. The weeding blade shaft is fastened to the weeding blade cover via a bearing end seat. The weeding blade cover is connected to the electric push rod of the weeding component lifting component via a second pin. The limiting component is connected to the weeding blade cover via bolts. The limiting component includes two arc-shaped strips symmetrically arranged below the front end of the weeding blade cover.
[0009] Furthermore, the lifting component of the weeding component includes a connecting plate and an electric push rod. The electric push rod is inclined and its lower end is connected to the connecting plate on the tracked universal chassis via a first pin, and its upper end is connected to the weeding blade cover of the weeding working component via a second pin. The electric push rod is used to adjust the height of the front-end blade of the weeding working component by pushing the weeding working component to rotate around the second pin.
[0010] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:
[0011] The advantages of this invention are that the machine's overall width is ≤600mm, allowing it to move freely between tea ridges in tea gardens. The use of a tracked chassis prevents slippage when the machine is stationary and provides a large ground contact area, making it more suitable for hilly and mountainous terrain. During weeding, the engine drives a generator to charge the battery of the walking system in real time, extending its range. The hydraulic push rod can adjust the height difference between the weeding components and the ground in real time, allowing the operator to adjust the stubble height according to soil conditions. Limiting components ensure that the blades never touch the ground during movement, maximizing ground contact while protecting the blades, enabling the machine to adapt to more complex terrain. This invention not only improves the level of mechanized weeding in tea gardens but also reduces labor intensity and increases work efficiency, making it worthy of widespread application.
[0012] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description
[0013] Figure 1 and Figure 2 This is a schematic diagram of the overall structure of the device of this utility model;
[0014] Figure 3 This is a schematic diagram of a tracked chassis with the left track removed.
[0015] The list of components represented by each number in the attached diagram is as follows:
[0016] 1. Tracked universal chassis; 2. Power supply system; 3. Weeding working parts; 4. Weeding parts lifting parts; 6. Mounting plate; 7. Left motor drive wheel; 8. Right motor drive wheel; 9. First left driven wheel; 10. Second left driven wheel; 11. Third left driven wheel; 12. First right driven wheel; 13. Second right driven wheel; 14. Third right driven wheel; 15. Left track inner plate; 16. Left track outer plate; 17. Right track inner plate; 18. Right track outer plate; 19. Left rubber track; 20. Right rubber track; 21. Front mounting plate 22. Supporting square steel; 23. Left bolt screw mechanism; 24. Right bolt screw mechanism; 25. Left motor; 26. Right motor; 27. Weeding blade cover; 28. Generator support frame; 29. Generator; 30. 12V first battery; 31. 12V second battery; 32. Diesel engine; 33. 12V starting battery; 34. First belt; 35. Second belt; 36. Third belt; 37. Weeding blade shaft; 38. Weeding blade; 39. Limiting component; 40. Mudguard chain; 41. Connecting plate; 42. Electric push rod. Detailed Implementation
[0017] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0018] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.
[0019] like Figure 1-3 As shown, a self-propelled extended-range, blade-following, narrow-width tea garden weeder includes a tracked universal chassis 1, a power supply system 2, a weeding working component 3, and a weeding component lifting component 4. The power supply system, weeding working component, and weeding component lifting component are all mounted on the tracked universal chassis. The power supply system provides electrical energy to the power supply system, weeding working component, and weeding component lifting component. The tracked universal chassis drives the weeder forward along the ground. The weeding working component uses blades to remove weeds. A limit component 5 is provided at the front end of the weeding working component to limit the minimum distance between the blades and the ground. The weeding component lifting component is connected to the weeding working component and is used to rotate the weeding working component in a vertical plane, causing the front weeding blades to rise or fall.
[0020] The tracked universal chassis 1 includes a mounting plate 6, a left motor drive wheel 7, a right motor drive wheel 8, a first left driven wheel 9, a second left driven wheel 10, a third left driven wheel 11, a first right driven wheel 12, a second right driven wheel 13, a third right driven wheel 14, a left track inner plate 15, a left track outer plate 16, a right track inner plate 17, a right track outer plate 18, a left rubber track 19, a right rubber track 20, a front mounting plate 21, and a support. The structure includes a support steel bar 22, a left bolt screw mechanism 23, a right bolt screw mechanism 24, a left motor 25, and a right motor 26. The left motor drive wheel 7 is fastened to the left inner track plate 15 and the left outer track plate 16 via wheel axle seat bolts. The right motor drive wheel 8 is fastened to the right inner track plate 17 and the right outer track plate 18 via wheel axle seat bolts. The first left driven wheel 9, the second left driven wheel 10, and the third left driven wheel 11 are fastened via short shafts, screws, and bearings. Fixed to the left inner track plate 15 and the left outer track plate 16, the first left driven wheel 9, the second left driven wheel 10, and the third left driven wheel 11 are fastened to the right inner track plate 17 and the right outer track plate 18 via short shafts, screws, and bearings. The third left driven wheel 11 tensions the left rubber track 19 via a left bolt screw mechanism 23, and the third left driven wheel 11 tensions the right rubber track 20 via a right bolt screw mechanism 24. The front crossbeam 22 passes through the left track. The inner side plate 15, the outer side plate 16 of the left track, the inner side plate 17 of the right track, and the outer side plate 18 of the right track are welded and reinforced. The front mounting plate 21 is welded to the inner side plate 15 of the left track and the inner side plate 17 of the right track. The mounting plate 6 is connected to the supporting square steel 22 by welding. The left motor 25 and the right motor 26 are connected to the left motor drive wheel and the right motor drive wheel by bearings, and are fastened to the inner side plate 15 of the left track and the inner side plate 17 of the right track by screws.
[0021] The power supply system 2 includes a generator support frame 28, a generator 29, a 12V first battery 30, a 12V second battery 31, a diesel engine 32, a 12V starting battery 33, a first belt 34, a second belt 35, and a third belt 36. The generator 29 is fixed to the generator support frame 28 by bolts with both positive and negative threads. The diesel engine 32 is connected to the generator 29 by the first belt 34 to extend the track travel range. The 12V starting battery 33 is fixed to the mounting plate 6 by bolts.
[0022] The weeding working component 3 includes a weeding blade cover 27, a weeding blade shaft 37, a swivel blade 38, a limiting component 39, and a mud-blocking chain 40. The swivel blade 38 is connected to the weeding blade shaft via a pin. The weeding blade shaft 37 is fastened to the weeding blade cover 27 via a bearing end seat. The weeding blade cover is connected to an electric push rod 42 via a pin. The limiting component 39 is connected to the weeding blade cover 27 via bolts.
[0023] The lifting component of the weeding part includes a connecting plate 41 and an electric push rod 42. One end of the electric push rod 42 is connected to the connecting plate 41 by a pin, and the other end is connected to the weeding blade cover 27 by a pin.
[0024] The working process of this utility model is as follows:
[0025] Turn on the weed cutter switch, turn on the remote control, pull the clutch, increase the throttle, and start the diesel engine 32. Part of the power from the diesel engine 32 is transmitted to the generator 29 through the first belt 34, and part of the power is transmitted to the blade shaft of the weeding component through the second belt 35 and the third belt 36, driving the blade to rotate. The generator 29 supplies electricity to the 12V first battery 30 and 12V second battery 31 of the power supply system to power the left motor 25 and the right motor 26, thereby extending the range of the walking system.
[0026] The electric push rod 42 can adjust the distance between the limiting component 39 and the ground in real time during operation. The limiting component 39 can prevent the blade from contacting the ground and support the weeding blade cover 27. By adjusting the connection hole between the limiting component 39 and the weeding blade cover 27, the minimum limit distance between the blade 38 and the ground can be adjusted.
[0027] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.
Claims
1. A self-propelled, range-extended, blade-following, narrow-width tea garden weeding machine, characterized in that: The device includes a tracked universal chassis, a power supply system, a weeding working component, and a weeding component lifting component. The power supply system, weeding working component, and weeding component lifting component are all mounted on the tracked universal chassis. The power supply system provides electrical energy to the power supply system, weeding working component, and weeding component lifting component. The tracked universal chassis drives the weeder forward along the ground. The weeding working component uses a swivel blade for weeding. A limit component is provided at the front end of the weeding working component to limit the minimum distance between the swivel blade and the ground. The weeding component lifting component is connected to the weeding working component and is used to raise or lower the front weeding blade by rotating the weeding working component in a vertical plane.
2. The self-propelled extended-range type blade-following narrow-width tea garden weeder according to claim 1, characterized in that, The tracked universal chassis includes a mounting plate, a left motor drive wheel, a right motor drive wheel, a first left driven wheel, a second left driven wheel, a third left driven wheel, a first right driven wheel, a second right driven wheel, a third right driven wheel, a left inner track plate, a left outer track plate, a right inner track plate, a right outer track plate, a left rubber track, a right rubber track, a front mounting plate, a supporting square steel, a left bolt screw mechanism, a right bolt screw mechanism, a left motor, a right motor, and a front crossbeam. The drive wheel of the left motor is fastened to the left inner track plate and the left outer track plate by wheel axle seat bolts, and the drive wheel of the right motor is fastened to the right inner track plate and the right outer track plate by wheel axle seat bolts. The first left driven wheel, the second left driven wheel, and the third left driven wheel are fastened to the left inner track plate by short shafts, screws, and bearings. The side plates and the left track outer plate, the first right driven wheel, the second right driven wheel, and the third right driven wheel are fastened to the right track inner plate and the right track outer plate by short shafts, screws, and bearings. The third left driven wheel tensions the left rubber track by a left bolt screw mechanism, and the third right driven wheel tensions the right rubber track by a right bolt screw mechanism. The front crossbeam passes through the left track inner plate, the left track outer plate, the right track inner plate, and the right track outer plate and is reinforced by welding. The front mounting plate is welded to the left track inner plate and the right track inner plate. The mounting plate is connected to the supporting square steel by welding. The left motor and the right motor are connected to the left motor drive wheel and the right motor drive wheel by bearings, respectively. The other side of the left motor and the right motor are fastened to the left track inner plate and the right track inner plate by screws, respectively.
3. The self-propelled extended-range type blade-following narrow-width tea garden weeder according to claim 1, characterized in that, The power supply system includes a generator support frame, a generator, a first V battery, a second V battery, a diesel engine, a starting battery, a first belt, a second belt, and a third belt. The generator is fixed to the generator support frame by bolts with both positive and negative threads. The diesel engine is connected to the generator through the first belt to extend the track travel range. The starting battery is fixed to the mounting plate by bolts.
4. The self-propelled extended-range type blade-following narrow-width tea garden weeder according to claim 1, characterized in that, The weeding working component includes a weeding blade cover, a weeding blade shaft, a swivel blade, a limiting component, and a mud-blocking chain. The swivel blade is connected to the weeding blade shaft via a pin. The weeding blade shaft is fastened to the weeding blade cover via a bearing end seat. The weeding blade cover is connected to the electric push rod of the weeding component lifting component via a second pin. The limiting component is connected to the weeding blade cover via bolts. The limiting component includes two arc-shaped strips symmetrically arranged below the front end of the weeding blade cover.
5. The self-propelled extended-range type blade-following narrow-width tea garden weeder according to claim 1, characterized in that, The lifting component of the weeding unit includes a connecting plate and an electric push rod. The electric push rod is inclined and its lower end is connected to the connecting plate on the tracked universal chassis through a first pin. Its upper end is connected to the weeding blade cover of the weeding working component through a second pin. The electric push rod is used to adjust the height of the front-end blade of the weeding working component by pushing the weeding working component to rotate around the second pin.