Hybrid remote control mower

Abstract

The invention provides a hybrid remote control type mower which comprises a chassis frame, a cutting knife clutch and knife shaft brake module and an engine are arranged on the chassis frame, walking modules are connected to the two ends of the chassis frame, and a grass chopping module is arranged between the front side of the chassis frame and the walking modules. The engine drives the grass chopping module to conduct grass chopping operation, and power on-off control and cutter shaft braking are conducted through the cutter clutch and cutter shaft braking module. The floating wheels are hung on the wheel beams in a balanced mode, the vehicle body posture swing amplitude when the whole machine crosses obstacles is reduced, the trafficability of the whole machine is good, the grass chopping module can be controlled to work and stop in the state that an engine is not shut down through double braking, safety is high, meanwhile, the grass chopping module is arranged in the vehicle body, and the grass chopping module is convenient to use. Impact of obstacles on the vehicle can be reduced, and the length of the whole vehicle is reduced.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a hybrid remote-controlled lawnmower. Background Technology

[0002] A lawnmower is a mechanical tool used to trim lawns, vegetation, etc. It uses the high-speed rotation of an engine to drive blades to perform the mowing operation, improving the efficiency of trimming or weeding.

[0003] Existing lawnmowers generally use frames formed by bending sheet metal, with an overall U-shaped structure. Both ends bend outwards to form folded sections, and tracks are installed below these folds. The track surfaces are typically triangular. The mowing module is externally located at the front of the tracks and frame. Mowing is performed using a direct-drive power transmission system from the engine to the blades. Existing lawnmowers suffer from drawbacks such as a heavy frame, weak obstacle-crossing ability, inability to stop the mowers while the engine is running, and poor safety. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the above-mentioned technology and provide a hybrid remote-controlled lawnmower.

[0005] Therefore, the present invention provides a hybrid remote-controlled lawnmower, including a chassis frame, on which a cutter clutch and cutter shaft braking module and an engine are mounted. A walking module is connected to both ends of the chassis frame, and a grass-chopping module is built into the front side of the chassis frame and between the walking module. The engine drives the grass-chopping module to perform grass-chopping operations, and the power on / off control and cutter shaft braking are achieved through the cutter clutch and cutter shaft braking module.

[0006] Preferably, it also includes a lifting module, which is mounted on the chassis frame and its front end is connected to the grass-chopping module.

[0007] Preferably, the lifting module includes a support arm, a support frame, a first linear drive component, a support link, and a limiting component. One end of the support arm is connected to the grass-chopping module, and the other end is hinged to the support frame fixed on the chassis frame. The tail end of the first linear drive component is connected to the support frame, and its output end is hinged to the support link. The other end of the support link is hinged to the support arm. The limiting component is used to limit the horizontal movement of the output end of the first linear drive component.

[0008] Preferably, the cutter clutch and cutter shaft braking module includes a cutter clutch mechanism and a cutter shaft braking mechanism. The cutter clutch mechanism controls the engagement and disengagement of the transmission belt, and the cutter shaft braking mechanism brakes the wheel axle. The cutter clutch mechanism and the cutter shaft braking mechanism are linked together.

[0009] Preferably, the cutter clutch mechanism includes a first tension wheel, a rocker arm, a first bracket, a second bracket, and a second linear drive component. Both the first bracket and the second bracket are connected to the lifting module. The tail end of the second linear drive component is hinged to the first bracket, and its output end is hinged to the rocker arm. The other end of the rocker arm is hinged to the second bracket. The first tension wheel is mounted on the rocker arm and is used to tighten or loosen the first belt.

[0010] Preferably, the cutter shaft braking mechanism includes a brake wheel, a brake band, and a fixing bolt. The brake wheel is mounted on the axle, and the brake band is provided on it. One end of the brake band is connected to the bracket, and the other end is connected to the fixing bolt located at the front end of the rocker arm.

[0011] Preferably, the grass-chopping module includes a grass-chopping mechanism and a transmission mechanism, wherein the engine drives the wheel axle to rotate and transmits power to the grass-chopping mechanism through the transmission mechanism.

[0012] Preferably, the grass-chopping mechanism includes a cutter frame, blades, and a blade shaft. The top of the cutter frame is connected to the lifting module. The blade shaft is installed inside the cutter frame. The transmission mechanism drives the blade shaft to rotate. Multiple blade holders are installed on the blade shaft. The blade holders are arranged in a double helix and the blades are installed on the blade holders.

[0013] Preferably, the walking module includes tracks and support rollers, wheel beams, drive wheels, and floating wheels disposed within the tracks. The drive wheels are used to drive the tracks to rotate. The wheel beams are fixedly connected to the chassis frame. The support rollers are rotatably mounted at both ends of the wheel beams. The floating wheels are balanced and suspended on the wheel beams, and the floating wheels are located between the two support rollers.

[0014] Preferably, the spreading surface of the track has a trapezoidal structure.

[0015] The beneficial effects of the present invention are as follows: The present invention provides a hybrid remote-controlled lawnmower with the following beneficial effects.

[0016] (1) The chassis frame is welded together by rectangular steel pipes, which reduces the weight of the frame and increases the ground clearance of the chassis. Its M-shaped cross section increases the contact angle between the walking module and the chassis frame, making the frame reasonably stressed and ensuring rigidity and strength. The grass-chopping module is built into the vehicle body, which can reduce the impact of obstacles on the grass-chopping module and reduce the overall length of the vehicle.

[0017] (2) The floating wheel in the walking module is suspended on the wheel beam, which reduces the sway of the vehicle body when crossing obstacles. The approach angle and departure angle of the whole machine are large, and the passability of the whole machine is good. The two ends of the wheel beam are equipped with support wheels, which can reduce the acceleration pitching and braking pitching of the whole machine during driving, as well as reduce the jumping amplitude of the track when crossing obstacles, and increase stability.

[0018] (3) When the second linear drive component extends, the rocker arm drives the first tension wheel to loosen the belt, and the fixing bolts at the front end of the rocker arm tighten the brake band, thereby braking the wheel axle with the brake wheel, and the wheel axle stops rotating. The two are linked together, which can control the work and stop of the grass-chopping module without turning off the engine. The working state is controllable and the safety is strong.

[0019] (4) The blade holder is arranged in a double helix, which optimizes the cutting path, improves the efficiency and quality of grass shredding, makes the force distribution of the blade more reasonable, and extends the service life of the blade. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the front structure of the hybrid remote-controlled lawnmower.

[0021] Figure 2 This is a schematic diagram of the rear structure of a hybrid remote-controlled lawnmower.

[0022] Figure 3 This is a front structural diagram of the hybrid remote-controlled lawnmower with the exterior trim removed.

[0023] Figure 4 This is a front view of the hybrid remote-controlled lawnmower with the exterior trim removed.

[0024] Figure 5 yes Figure 4 Sectional view of AA;

[0025] Figure 6 This is a schematic diagram of the grass-removing module of a hybrid remote-controlled lawnmower;

[0026] Figure 7 This is a top view of the braking module and the lifting module;

[0027] Figure 8 yes Figure 7 Enlarged view of section A;

[0028] Figure 9 This is a schematic diagram of the bottom structure of the grass-shredding module;

[0029] Figure 10 This is a schematic diagram of the top structure of the grass-shredding module;

[0030] Figure 11 yes Figure 10Enlarged view of section B;

[0031] Figure 12 This is a structural diagram of the lifting module and the braking module;

[0032] Figure 13 This is the Adams motion analysis diagram of the support-type lifting mechanism.

[0033] The diagram shows the following components: 1. Engine; 2. Chassis frame; 3. Generator; 4. Support arm; 5. Support frame; 6. First linear drive component; 7. Support link; 8. Limiting component; 81. Limiting plate; 82. Slide groove; 83. Limiting bearing; 84. Connecting shaft; 9. Cutter clutch mechanism; 91. First tension wheel; 92. Rocker arm; 93. Brake one; 94. Brake two; 95. Second linear drive component; 10. Cutter shaft braking mechanism; 101. Brake wheel; 102. Brake band; 103. Fixing bolt one; 11. Belt one; 12. Axle; 13. Cutting frame; 131. Cutting table shell; 132. Cover plate; 14. Blade; 15. Cutter shaft. 16. Tool holder; 17. Track; 18. Track roller; 19. Wheel beam; 20. Drive wheel; 21. Floating wheel; 22. Control box; 23. Bearing housing base plate; 24. Second drive wheel; 25. First driven wheel; 26. First drive wheel; 27. Bearing body; 28. Second driven wheel; 29. ​​Second tension wheel; 30. Second fixing bolt; 31. Protective plate; 32. Belt cover; 33. Drive motor; 34. Tractor wheel; 35. Guide wheel; 36. Guide wheel fork; 37. Sleeve; 38. Tension spring; 39. Push plate; 40. Tension screw; 41. Floating wheel side plate; 42. Battery; 43. Oil tank; 44. Speed ​​sensor; 45. Support tube. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0035] Example:

[0036] like Figures 1 to 13As shown, the present invention provides a hybrid remote-controlled lawnmower, including a control module and an engine 1. The control module is used to receive command signals from a wireless remote controller to determine and drive various components to execute relevant commands. It also includes a chassis frame 2, on which a cutter clutch and cutter shaft braking module, the control module, the engine 1, and a generator 3 are installed. A walking module is connected to both ends of the chassis frame 2. A grass-chopping module is built into the front side of the chassis frame 2 and between the walking module. The engine 1 drives the grass-chopping module to perform grass-chopping operations and controls the power on / off and cutter shaft braking through the cutter clutch and cutter shaft module. The engine 1 also drives the generator 3 to generate electricity.

[0037] For example, engine 1 uses a 764cc V-twin engine to improve the overall power output of the machine and ensure the mowing / shredding effect.

[0038] Furthermore, such as Figure 4 As shown, the chassis frame 2 is welded from multiple rectangular steel pipes in an M-shaped arrangement, which raises the ground clearance of the chassis, reduces the overall weight, increases the contact angle between the walking module and the chassis frame 2, makes the entire frame reasonably stressed, and ensures its rigidity and strength. The lower middle part is used to install the engine 1, thereby lowering the engine 1 and controlling the overall height of the machine.

[0039] Furthermore, such as Figure 7 , Figure 8 and Figure 12 As shown, the lawnmower of the present invention also includes a lifting module, which is divided into a left lifting module and a right lifting module. The left lifting module and the right lifting module are respectively located at the two ends of the chassis frame 2, and their front ends are connected to the grass-chopping module.

[0040] The lifting module includes a support arm 4, a support frame 5, a first linear drive component 6, a support connecting rod 7, and a limiting component 8. One end of the support arm 4 is fixedly connected to the grass-chopping module by bolts or the like, facilitating the installation, disassembly, or maintenance of the grass-chopping module. The other end of the support arm 4 is hinged to the support frame 5 fixed on the chassis frame 2. The tail end of the first linear drive component 6 is hinged to the support frame 5, and its output end is hinged to the support connecting rod 7. The other end of the support connecting rod 7 is hinged to the support arm 4 through bearing seat base plates 23 fixedly installed on both sides of the support arm 4. The limiting component 8 is used to limit the horizontal movement of the output end of the first linear drive component 6.

[0041] Specifically, the first linear drive component 6, the support link 7, and the limiting component 8 are all located below the support arm 4, and the support arm 4, the support frame 5, the first linear drive component 6, and the support link 7 form a deformed four-bar linkage structure.

[0042] The limiting component 8 includes a limiting plate 81, a sliding groove 82, and a limiting bearing 83. The limiting plate 81 is fixedly installed on the front side of the chassis frame 2 and extends outward. While ensuring its firm fixation and normal lifting and lowering of the grass-chopping module, it can further reduce the overall length of the chassis frame 2, thereby better embedding the grass-chopping module between the chassis frame 2 and the walking module, thus shortening the overall length of the machine.

[0043] The limiting plate 81 has a horizontally arranged sliding groove 82. The output end of the first linear drive component 6 is hinged to the support rod 7 through a connecting shaft 84. Both ends of the connecting shaft 84 pass through the corresponding sliding groove 82 and are rotatably mounted with limiting bearings 83, thereby preventing the connecting shaft 84 from disengaging from the sliding groove 82.

[0044] The hinge point between the first linear drive component 6 and the support link 7, i.e., the connecting shaft 84, contacts the slide groove 82. This allows some of the impact load to be transferred to the slide groove 82 when the grass-chopping module is impacted, reducing the impact on the first linear drive component 6. Simultaneously, the outer ring of the limiting bearing 83 contacts the bottom plane of the limiting plate 81, providing support for the limiting bearing 83. When the grass-chopping module experiences a downward impact, the impact force is transmitted to the support link 7, decomposing into a horizontal impact force and a vertical impact force. The vertical impact force is borne by the limiting plate 81 and the slide groove 82 because the outer ring of the limiting bearing 83 contacts the bottom plane of the limiting plate 81. The horizontal impact force is borne by the first linear drive component 6. Compared to a typical four-bar linkage, the impact force borne by the first linear drive component 6 is significantly reduced.

[0045] The first linear drive component 6 extends and retracts horizontally along the slide 82, driving the grass-chopping module on the support arm 4 to move up and down approximately perpendicular to the ground (e.g., Figure 13 This is to prevent the grass-chopping module from undergoing large horizontal displacement, which would increase its posture changes, causing components such as blades at the bottom of the grass-chopping module to be exposed, and the protective components at the front and back of the cutter casing to fail, which could easily lead to danger.

[0046] The first linear drive component 6 includes an electric push rod, a hydraulic push rod, etc., and an electric push rod is selected in this embodiment.

[0047] Furthermore, such as Figure 7 , Figure 8 and Figure 12 As shown, the cutter clutch and cutter shaft braking module includes a cutter clutch mechanism 9 and a cutter shaft braking mechanism 10. The cutter clutch mechanism 9 controls the engagement and disengagement of the belt 11 that drives the engine 1 and the grass-chopping module, and the cutter shaft braking mechanism 10 brakes the wheel axle 12. The cutter clutch mechanism 9 and the cutter shaft braking mechanism 10 are linked together.

[0048] It should be noted that in this embodiment, the braking module is located on one side of the left lifting module, while the right lifting module does not have a braking module.

[0049] The cutting tool clutch mechanism 9 includes a first tension wheel 91, a rocker arm 92, a first bracket 93, a second bracket 94, and a second linear drive component 95. The first bracket 93 and the second bracket 94 are both connected to the support arm 4. The tail end of the second linear drive component 95 is hinged to the first bracket 93, and its output end is hinged to the rocker arm 92. The other end of the rocker arm 92 is hinged to the second bracket 94. The first tension wheel 91 is mounted on the rocker arm 92 and is used to tighten or loosen the belt 11.

[0050] The cutter shaft braking mechanism 10 includes a brake wheel 101, a brake band 102, and a fixing bolt 103. The brake wheel 101 is fixedly installed on the wheel axle 12, and the brake band 102 is wrapped around it. One end of the brake band 102 is connected to the bracket 93, and the other end can be connected to the fixing bolt 103 located at the front end of the rocker arm 92 by a pull rope.

[0051] Specifically, a second driving wheel 24 and a first driven wheel 25 are fixedly installed at both ends of the axle 12. The first driving wheel 26 at the output end of the engine 1 transmits power to the first driven wheel 25 via a belt 11, and then to the second driving wheel 24. The axle 12 passes through the support arm 4, and bearing bodies 27 are fixedly installed on the bearing seat base plates 23 on both sides of the support arm 4, thereby ensuring that the axle 12 can rotate smoothly when the grass-chopping module is raised and lowered normally, providing power to the grass-chopping module.

[0052] The second linear drive component 95 includes an electric push rod, a hydraulic push rod, etc., and an electric push rod is selected in this embodiment.

[0053] It should be noted that during the lifting and braking process, the first linear drive component 6 and the second linear drive component 95 have a worm gear structure inside, which has a self-locking characteristic. When the first linear drive component 6 or the second linear drive component 95 stops extending or retracting, it can self-lock within its rated load to lock the grass shredder module or the first tension wheel 91 in the corresponding position.

[0054] When it is necessary to brake the blade 14 while the engine 1 is running, the electric push rod extends, causing the rocker arm 92 to lift upward, so that the first tensioner 91 is disengaged from the belt 11, and the brake band 102 is tightened at the same time. Through friction, the brake wheel 101 stops rotating, thereby stopping the wheel shaft 12 from rotating. This achieves dual braking by cutting off the power flow and applying braking force, avoiding overload, stalling or even shutdown of the engine 1 caused by direct braking. It ensures that the engine 1 can continue to run to provide power to other systems (such as hydraulic, electric, etc.) and prevents accidental start of the blade shaft 15.

[0055] Furthermore, such as Figures 9-11 As shown, the grass-chopping module includes a grass-chopping mechanism and a transmission mechanism. The engine 1 drives the wheel axle 12 to rotate and transmits power to the grass-chopping mechanism through the transmission mechanism.

[0056] The transmission mechanism includes a second drive wheel 24, a second belt, and a second driven wheel 28. The power transmitted by the engine 1 is transmitted to the cutter shaft 15 in sequence through the first drive wheel 26, the first driven wheel 25, the second drive wheel 24, and the second driven wheel 28, driving the cutter shaft 15 to rotate.

[0057] A second tensioning pulley 29 is provided on one side of the belt 2. The second tensioning pulley 29 is installed on the side of the grass shredding mechanism to achieve stable transmission and prevent slippage.

[0058] The transmission mechanism is covered by a belt cover 32, which protects the drive pulley 24, belt 2, driven pulley 28 and tension pulley 29 inside.

[0059] Because the working environment of the cutter frame 13 is harsh, if grass clippings or muddy water enter the internal space of the belt cover 32 through the gaps or other places of the cutter frame 13 and cannot be discharged, it will affect the overall operation of the belt 2. Therefore, this application has a groove at the bottom of the belt cover 32 so that debris can be discharged from there. Even if debris enters through the groove at the bottom of the belt cover 32, it can be discharged from there in a timely manner.

[0060] It should be noted that belts 11 and 2 are power transmission belts, preferably V-belts. V-belts are suitable for the agricultural mowing conditions described in this invention due to their excellent friction transmission characteristics, impact resistance, and adaptability to harsh environments. Of course, in other embodiments, other types of transmission belts, such as synchronous belts, can also be considered according to specific needs.

[0061] Furthermore, the grass-chopping mechanism includes a cutter frame 13, blades 14, and a blade shaft 15. The top of the cutter frame 13 is connected to the lifting module. The blade shaft 15 is installed inside the cutter frame 13. The transmission mechanism drives the blade shaft 15 to rotate. Multiple blade holders 16 are mounted on the blade shaft 15, arranged in a double helix pattern. The blades 14 are mounted on the blade holders 16. The blades 14 extend to both sides in a figure-eight shape, which can widen the cutting width of a single blade 14 and create an overlapping area between two sets of blades 14 along the axial direction of the blade shaft 15, ensuring a clean cut and improving the grass-chopping effect.

[0062] The blade holder 16 is arranged in a double helix, which optimizes the cutting path, improves the efficiency and quality of grass shredding, makes the force distribution of the blade more reasonable, and extends the service life of the blade.

[0063] Specifically, the cutting frame 13 includes a cutting platform housing 131 and a cover plate 132. The top of the cutting platform housing 131 is detachably connected to the support arm 4 via a mounting bracket. The front end of the cutting platform housing 131 is hinged to the downwardly inclined cover plate 132 via a hinge or similar means. The front end of the cover plate 132 is fixed to the cutting platform housing 131 by a fixing bolt 30. After removing the fixing bolt 30, the cover plate 132 can be flipped upwards to open, making it easier to replace the blade 14 and clean the cutter shaft 15.

[0064] Rubber guard plates 31 are installed at both the front and rear of the cutting platform shell 131 to block dust and grass clippings from flying out, reduce dust, prevent high-speed flying debris from flying out, and increase safety.

[0065] Furthermore, such as Figure 5 and Figure 6 As shown, the walking module includes a track 17 and support rollers 18, wheel beams 19, drive wheels 20, and floating wheels 21 disposed within the track 17. The spreading surface of the track 17 has a trapezoidal structure, which increases the approach angle and departure angle, solving the problem of poor overall passability. The drive wheel 20 is used to drive the track 17 to rotate. The wheel beam 19 is fixedly connected to the chassis frame 2. The support rollers 18 are rotatably mounted at both ends of the wheel beam 19. The floating wheels 21 are balanced and suspended on the wheel beam 19, and the floating wheels 21 are located between the two support rollers 18.

[0066] The walking module also includes a tow wheel 34 and a guide wheel 35. The tow wheel 34 is rotatably mounted on the top of the wheel beam 19 to support the track 17. The guide wheel 35 is located on the side away from the drive wheel 20. The guide wheel 35 is installed in the middle of the guide wheel fork 36 and guides the track 17 to move by embedding it into the groove in the middle of the track 17, so that it will not slip off from the middle of the support roller 18 below.

[0067] A sleeve 37 is fixedly installed on the wheel beam 19. The guide wheel fork 36 is inserted into the sleeve 37. A tension spring 38 and a push plate 39 are provided inside the sleeve 37. One end of the tension spring 38 abuts against / is fixed to the guide wheel fork 36, and the other end abuts against / is fixed to the push plate 39. A tension screw 40 is threadedly connected to the end of the sleeve 37 away from the guide wheel fork 36. The end of the tension screw 40 that extends into the sleeve 37 abuts against / is fixed to the push plate 39.

[0068] When the tension screw 40 is rotated, the end of the tension screw 40 moves to the left, pushing the push plate 39 to the left, which in turn pushes the tension spring 38 to the left and pushes the guide wheel fork 36 to the left. When the guide wheel fork 36 presses the guide wheel 35 against the track 17, the tension screw 40 is rotated again to compress the tension spring 38 by a certain length, generating a preload force on the track 17. At the same time, when the track 17 crosses an obstacle during its movement, the guide wheel fork 36 is subjected to a rightward impact force, and the tension spring 38 is compressed, which can reduce the impact of the track 17 on the entire wheel system.

[0069] The rotation of the drive wheel 20 is controlled by the drive motor 33 and the reducer mounted on the chassis frame 2.

[0070] When an obstacle such as a rock appears beneath one of the floating wheels 21, that floating wheel 21 moves upward, and the floating wheel side plate 41 follows the floating wheel 21 to rotate around the rotation center on the wheel beam 19. The two support rollers 18 at both ends are fixed to the wheel beam 19. When passing over an obstacle, they do not move relative to the wheel beam 19, meaning the wheel beam 19 as a whole does not shake. During acceleration or braking, the support rollers 18 fixed to the wheel beam 19 at both ends can provide sufficient support to suppress acceleration nose-up and braking nose-down.

[0071] Furthermore, a battery 42 and a fuel tank 43 are mounted on the chassis frame 2. The battery 42 is used to start the engine 1 and supply power to the control module and other electrical equipment, including lights, sensors, electric actuators, and drive motors. The fuel tank 43 provides power to the engine 1. A fuel level sensor is installed on the fuel tank 43, and a fuel level gauge is provided on the control panel to display the remaining fuel level in real time.

[0072] The battery 42 is a storage battery, including lead-acid batteries and lithium batteries, etc. In this embodiment, a lead-acid battery is selected.

[0073] After the engine 1 starts, the generator 3 replaces the battery 42 to provide power to the whole machine's electrical control system, electric push rod, drive motor, etc. The generator 3's power output is higher than the vehicle's power consumption, and the excess power will continue to charge the battery 42, so that the battery will not run out of power during long-term operation of the whole machine.

[0074] Furthermore, a speed sensor 44 is installed on one side of the drive wheel 26 to convert the rotational speed into an electrical signal that can be recognized by the controller, thereby enabling the detection, control, and protection of the engine 1's status.

[0075] Furthermore, such as Figure 1 and Figure 2As shown, multiple support tubes 45 are fixedly installed on the chassis frame 2. The multiple support tubes 45 and side plates constitute the exterior module of the lawnmower. The exterior module has a trapezoidal structure that is narrow at the top and wide at the bottom, so that the exterior module can protect the internal components of the vehicle. The trapezoidal structure with four inclined sides can provide a certain support force when the machine rolls over in any direction in dangerous situations such as rollover, and there is no obvious structural weakness.

[0076] Furthermore, the control module includes a control box 22, which is fixedly mounted on the chassis frame 2 and located at the rear end of the vehicle body. The control box 22 contains a PCB circuit board, a driver, a controller, a main control board, a DC-DC module, etc. The main control board receives signals from a wireless remote control, sensors, etc. The controller receives data from the main control board, performs logical operations and decisions, and outputs control commands. The driver receives commands from the controller and drives the drive motor, electric actuator, etc., to perform operations.

[0077] The control module sends command signals to the wireless remote control, and the control module drives the walking module to move according to the corresponding command signals, such as: constant speed forward, constant speed backward, accelerated forward, accelerated backward, decelerated forward, and decelerated backward. The operator can adjust the vehicle's walking speed according to the growth of the weeds. When the weeds are sparse or green, the operator can choose to accelerate, and when the weeds are plentiful or thick, the operator can choose to drive at a low speed. The specified signals can also drive the first linear drive component 6 and the second linear drive component 95 to perform the lifting, lowering, and braking operations of the grass-chopping module. The operator only needs to use the wireless remote control to control the lawnmower, without the need for manual pushing, and the level of intelligence is high.

[0078] It should be noted that the operation of the aforementioned wireless remote control is existing technology and will not be elaborated further.

[0079] The working principle of this invention is as follows:

[0080] The machine is powered by engine 1 and travels on tracks 17. The tracks 17 are driven to rotate by drive motor 33 and reducer, which in turn drives the whole vehicle to move.

[0081] Part of the power of engine 1 is transmitted to driven wheel 25 through drive wheel 26 and belt 11, and then to drive wheel 24 and driven wheel 28 through driven wheel 25, thereby driving the blade shaft 15 to rotate and using blades 14 to cut grass and clear land, cutting and crushing weeds or shrubs in the environment to achieve a cleaning effect.

[0082] At the same time, the engine 1 drives the generator 3 to rotate via belt drive to generate electricity, providing the machine with a continuous power supply to drive the drive motor 33 and various electrical components.

[0083] When braking is required, the electric push rod extends, the first tension wheel 91 disengages from the belt 11, and at the same time tightens the brake band 102, causing the wheel shaft 12 to stop rotating, thus stopping the cutter shaft 15, which is highly safe.

[0084] The machine adopts a support-type lifting module, which uses an electric push rod to raise and lower the front-mounted grass-chopping module in a near-vertical direction. When the front-mounted grass-chopping module is impacted, it can transfer part of the impact force to the frame, reducing the impact on the electric push rod. This allows for control of the stubble height from 3cm to 15cm, enabling the machine to perform continuous weeding operations in complex field environments.

[0085] In the description of this invention, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", 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 invention 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 invention.

[0086] However, the above description is merely a specific embodiment of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of the present invention should still fall within the scope of the claims of the present invention.

Claims

1. A hybrid remote-controlled lawnmower, characterized in that, Includes a chassis frame (2), on which a cutter clutch and cutter shaft brake module and an engine (1) are installed. Both ends of the chassis frame (2) are connected to a walking module. A grass-chopping module is built into the front side of the chassis frame (2) and between the walking module. The engine (1) drives the grass-chopping module to perform grass-chopping operations, and the power on / off control and cutter shaft braking are performed through the cutter clutch and cutter shaft brake module.

2. The hybrid remote-controlled lawnmower according to claim 1, characterized in that, It also includes a lifting module, which is mounted on the chassis frame (2) and its front end is connected to the grass-chopping module.

3. A hybrid remote-controlled lawnmower according to claim 2, characterized in that, The lifting module includes a support arm (4), a support frame (5), a first linear drive component (6), a support link (7), and a limiting component (8). One end of the support arm (4) is connected to the grass-chopping module, and the other end is hinged to the support frame (5) fixed on the chassis frame (2). The tail end of the first linear drive component (6) is connected to the support frame (5), and its output end is hinged to the support link (7). The other end of the support link (7) is hinged to the support arm (4). The limiting component (8) is used to limit the output end of the first linear drive component (6) to move horizontally.

4. A hybrid remote-controlled lawnmower according to claim 1, characterized in that, The cutter clutch and cutter shaft braking module includes a cutter clutch mechanism (9) and a cutter shaft braking mechanism (10). The cutter clutch mechanism (9) controls the clutch of the transmission belt (11), and the cutter shaft braking mechanism (10) brakes the wheel axle (12). The cutter clutch mechanism (9) and the cutter shaft braking mechanism (10) are linked together.

5. A hybrid remote-controlled lawnmower according to claim 4, characterized in that, The cutter clutch mechanism (9) includes a first tension wheel (91), a rocker arm (92), a first bracket (93), a second bracket (94), and a second linear drive component (95). The first bracket (93) and the second bracket (94) are both connected to the lifting module. The tail end of the second linear drive component (95) is hinged to the first bracket (93), and its output end is hinged to the rocker arm (92). The other end of the rocker arm (92) is hinged to the second bracket (94). The first tension wheel (91) is mounted on the rocker arm (92) and is used to tighten or loosen the first belt (11).

6. A hybrid remote-controlled lawnmower according to claim 5, characterized in that, The cutter shaft braking mechanism (10) includes a brake wheel (101), a brake band (102), and a fixing bolt (103). The brake wheel (101) is mounted on the wheel axle (12), and the brake band (102) is provided on it. One end of the brake band (102) is connected to the bracket (93), and the other end is connected to the fixing bolt (103) provided at the front end of the rocker arm (92).

7. A hybrid remote-controlled lawnmower according to claim 1, characterized in that, The grass-chopping module includes a grass-chopping mechanism and a transmission mechanism. The engine (1) drives the wheel axle (12) to rotate and transmits power to the grass-chopping mechanism through the transmission mechanism.

8. A hybrid remote-controlled lawnmower according to claim 7, characterized in that, The grass-chopping mechanism includes a cutter frame (13), blades (14) and a blade shaft (15). The top of the cutter frame (13) is connected to a lifting module. The blade shaft (15) is installed inside the cutter frame (13). The transmission mechanism drives the blade shaft (15) to rotate. Multiple blade holders (16) are installed on the blade shaft (15). The blade holders (16) are arranged in a double helix. The blades (14) are installed on the blade holders (16).

9. A hybrid remote-controlled lawnmower according to claim 1, characterized in that, The walking module includes a track (17) and support rollers (18), wheel beams (19), drive wheels (20) and floating wheels (21) disposed in the track (17). The drive wheels (20) are used to drive the track (17) to rotate. The wheel beams (19) are fixedly connected to the chassis frame (2). The support rollers (18) are rotatably mounted on both ends of the wheel beams (19). The floating wheels (21) are balanced and suspended on the wheel beams (19). The floating wheels (21) are located between the two support rollers (18).

10. A hybrid remote-controlled lawnmower according to claim 9, characterized in that, The spreading surface of the track (17) is trapezoidal.

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