Flat-slope dual-purpose telescopic folding mower

Abstract

The invention discloses a flat-slope dual-purpose telescopic folding mower, and aims to solve the problems that an operation blind area exists at the front edge of a slope and forage is inconvenient to collect in an existing mower. The mowing machine comprises a machine cover, a suspension frame body and a sidesway and turnover mechanism. An auxiliary mowing mechanism is arranged on the front side of the hood and comprises a liftable swing rod and an angle adjusting rod with an adjustable angle and a locked angle, and the tail end of the auxiliary mowing mechanism drives a cutter head through a hydraulic motor and is used for cleaning a front blind area; a foldable conveying device is hinged to the rear side of the machine cover and comprises a fixing and folding frame driven by a hydraulic cylinder to be unfolded or folded and a conveying belt with a barrier strip, and automatic receiving, lifting and conveying of forage are achieved. Multi-directional mowing, automatic forage collection and efficient heat dissipation are achieved, and the working efficiency, the terrain adaptability and the equipment reliability are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery and equipment technology, and in particular to a retractable and foldable lawn mower that can be used on both flat and slope terrain. Background Technology

[0002] As agricultural machinery widely used in lawn, pasture, and roadside slope maintenance, lawn mowers have always been a focus of technological development due to their versatility and adaptability. Traditional towed or suspended lawn mowers typically have their mowing components fixed under the hood, resulting in a relatively fixed working width and position.

[0003] When dealing with complex terrain, especially roadside slopes and embankment slopes, existing technologies have significant shortcomings: First, the main mowing component cannot effectively cover weeds in the area directly in front of or to the side of the tractor, creating blind spots; second, the cut grass is often scattered directly on the ground, requiring additional manpower or equipment for collection and cleanup, resulting in low efficiency and high costs; third, traditional transmission systems, especially gearboxes, are prone to overheating under prolonged high-load operation, affecting equipment lifespan and reliability.

[0004] Existing technologies found, such as the heavy-duty side-shifting lawnmower with patent number CN201220523679.9, disclose a lawnmower that achieves side-shifting through the cooperation of guide rails and suspension. However, its adaptability to sloping terrain is still insufficient, as it cannot adjust the lawnmower body's spatial posture with multiple degrees of freedom to conform to the slope. Additionally, the flip-side-shifting lawnmower with patent number CN202111550907.1, while proposing flipping and side-shifting functions to expand the mowing range, focuses its structure on adjusting the posture of the main unit and does not solve the problems of auxiliary mowing in the leading edge area of ​​the slope or efficient and automated forage collection.

[0005] Therefore, there is an urgent need in this field for a new type of mowing equipment that is highly integrated, highly automated, adaptable to mowing in both flat and sloping main areas, effectively clears blind spots at the front edge, and simultaneously completes the collection and transfer of hay. Summary of the Invention

[0006] The purpose of this invention is to overcome the aforementioned deficiencies of the prior art and provide a retractable and foldable lawnmower suitable for both flat and slope terrain. This lawnmower not only possesses conventional lateral shifting and tilting functions to adapt to the terrain of the main working area, but also integrates a multi-degree-of-freedom adjustable auxiliary mowing mechanism to eliminate blind spots in front of the work area. It is also equipped with a retractable and foldable conveying device for automatic collection and unloading of hay, and has an optimized heat dissipation system to improve equipment reliability.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: A retractable folding lawnmower suitable for both flat and slope applications includes a hood, a suspension frame, a side-shifting mechanism, a tilting mechanism, a gearbox, and a cutter shaft mechanism. The hood is connected to the suspension frame via the tilting and side-shifting mechanisms. A conveying device is fixedly connected to the rear of the hood, and an auxiliary mowing mechanism is provided on the front of the hood. The auxiliary mowing mechanism includes a cantilever beam fixed to the front of the hood, with a swing rod vertically hinged to the free end of the cantilever beam. Two ends of a first hydraulic cylinder are respectively hinged to the cantilever beam and the swing rod. An angle adjustment seat is fixedly connected to the free end of the swing rod, and the angle adjustment seat is hinged to one end of an angle adjustment rod. The side of the angle adjustment seat has multiple first positioning holes arranged in a fan shape around the hinge center. The angle adjustment rod has second positioning holes, through which the cylinder passes. Angle locking is achieved with bolts and other fasteners in the second positioning hole; a vertical fixing block is fixed to the free end of the angle adjusting rod, and a vertical rotating shaft is rotatably mounted on the fixing block via bearings. A first hydraulic motor is also fixed on the fixing block. The output shaft of the first hydraulic motor is coaxially fixedly connected to the upper end of the rotating shaft via a coupling, and a cutter head is fixed to the lower end of the rotating shaft; the conveying device includes a fixed side frame fixedly connected to the machine cover, and a folding side frame hinged to the rear end of the fixed side frame. A front steering roller is provided at the front end of the fixed side frame, and a rear steering roller is provided at the rear end of the folding side frame. A conveyor belt is sleeved on the front steering roller and the rear steering roller. The two ends of a second hydraulic cylinder are respectively hinged to the fixed side frame and the folding side frame for driving the folding side frame to unfold or retract.

[0008] Furthermore, the fixed side frame has a horizontal section and an inclined lifting section connected to the horizontal section at a certain angle (preferably 30-60 degrees, most preferably 45 degrees), and the folding side frame is hinged to the end of the inclined lifting section. This structure allows the hay to be smoothly lifted to a certain height after being received in the horizontal section.

[0009] Furthermore, multiple pressure rollers are installed on both sides of the corner between the horizontal section and the inclined lifting section of the fixed side frame. The axle of the pressure roller is fixedly connected to the side frame, and the rolling surface of the pressure roller makes rolling contact with the two side edges of the conveyor belt. The pressure rollers can effectively prevent the conveyor belt from tilting or deviating due to tension changes at the corner, ensuring conveying stability.

[0010] Furthermore, the outer surface of the conveyor belt is provided with multiple transverse baffles spaced at intervals along its circumferential direction. These baffles increase the friction on the forage, preventing it from slipping during inclined conveying and ensuring improved efficiency.

[0011] Furthermore, a second hydraulic motor is provided on one side of the folding side frame, which drives the rear or front steering roller via a chain drive mechanism. Independent hydraulic drive allows for controllable start / stop and speed of the conveyor, matching the needs of lawn mowing operations.

[0012] Furthermore, a grass outlet is provided on the machine cover at the position corresponding to the feeding end of the conveying device, and a grass storage box or a collection vehicle towed by a tractor is provided below the unloading end of the conveying device. This realizes integrated continuous operation of grass cutting, grass discharge, grass receiving, conveying, and grass unloading.

[0013] Furthermore, the rotating shaft is mounted in a vertical positioning tube via bearings. The positioning tube is fixed to the fixing block, and its upper and lower ends are sealed by end caps. The positioning tube provides stable support and protection for the rotating shaft, preventing weeds from getting tangled and soil from entering the bearings.

[0014] Furthermore, the angle adjustment seat is a U-shaped bent plate, which has a simple structure, good strength, and is easy to process and install.

[0015] Furthermore, the suspension frame is equipped with a fan for blowing air onto the hydraulic system, which facilitates cooling of the hydraulic system.

[0016] The beneficial effects of this invention are: 1. This invention, while possessing traditional side-shifting and flipping functions to adjust the host's posture to adapt to the main slope, innovatively incorporates a multi-degree-of-freedom auxiliary mowing mechanism at the front. This mechanism uses a first hydraulic cylinder to raise and lower the swing arm, and through the cooperation of the angle adjustment seat and the angle adjustment rod, it achieves stepless adjustment and locking of the cutter head's angle in the horizontal plane. This allows the cutter head to precisely extend to areas that traditional mowers cannot cover, such as slopes directly in front of or to the side of the tractor, and the edges of ditches, achieving all-around, blind-spot-free mowing operations.

[0017] 2. This invention solves the problem of hay collection through a conveying device. The cut hay falls through the outlet at the rear of the machine onto the horizontal section of the conveyor belt, where it is automatically grabbed and lifted by a conveyor belt with baffles, and finally ejected from the unloading end of the inclined section, falling directly into the hay storage bin or the accompanying trailer. This process is fully automated, eliminating the need for subsequent manual hay gathering and loading, greatly improving overall operational efficiency and reducing labor costs.

[0018] 3. The folding side frame of the conveying device of the present invention can be driven by the second hydraulic cylinder to retract and join with the fixed side frame, which significantly reduces the overall longitudinal length of the equipment, making it more compact in road transfer and non-operation states, facilitating tractor traction and passage through narrow sections, and improving the mobility and convenience of the equipment.

[0019] 4. The invention features a specially designed fan on the suspension frame, which provides forced air cooling to the oil tank under high loads, effectively reducing its operating temperature and preventing lubricant failure and component wear due to overheating. This extends the service life of the core transmission components and enhances the reliability of the equipment under long-term continuous operation. The blade of the auxiliary mowing mechanism is driven by an independent hydraulic motor, ensuring efficient power transmission and flexible layout.

[0020] 5. Each joint of the auxiliary mowing mechanism of the present invention adopts a hydraulic cylinder or adjustable mechanical locking method. The operator can control its lifting and unfolding through the hydraulic valve in the cab, and can get off the vehicle to manually and quickly adjust the working angle of the cutter head to adapt to different boundary terrains. It has good human-machine interaction and is simple and quick to adjust. Attached Figure Description

[0021] To more clearly illustrate the technical solution of the present invention, the drawings used in the implementation examples will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of a retractable and foldable lawnmower suitable for both flat and slope applications proposed in this invention. Figure 2 This is a three-dimensional structural diagram of a retractable and foldable lawn mower suitable for both flat and slope applications proposed in this invention. Figure 3 This is a front view of the overall structure of a retractable and foldable lawnmower suitable for both flat and slope applications proposed in this invention. Figure 4 This is a schematic diagram of the installation structure of the auxiliary mowing mechanism of a retractable foldable lawnmower that can be used on both flat and slope terrain, as proposed in this invention. Figure 5 This is a three-dimensional structural diagram of the conveying device of a retractable and foldable lawn mower suitable for both flat and slope applications proposed in this invention. Figure 6 This is a schematic diagram of the conveying device of a retractable folding lawnmower suitable for both flat and slope applications proposed in this invention.

[0023] Figure 7 This is a top view schematic diagram of the overall structure of a retractable and foldable lawn mower that can be used on both flat and slope terrain, as proposed in this invention. Figure 8 Appendix to this invention Figure 7 A schematic diagram of the AA section.

[0024] In the diagram: 1. Machine cover; 2. Side shifting mechanism; 3. Tilting mechanism; 4. Gearbox; 5. Cutter shaft mechanism; 6. Conveying device; 61. Fixed side frame; 611. Horizontal section; 612. Inclined lifting section; 62. Folding side frame; 63. Front steering roller; 64. Rear steering roller; 65. Conveyor belt; 66. Second hydraulic cylinder; 67. Pressure roller; 68. Stop bar; 69. Second hydraulic motor; 7. Auxiliary mowing mechanism; 71. Cantilever beam; 72. Swing rod; 73. First hydraulic cylinder; 74. Angle adjustment seat; 75. Angle adjustment rod; 76. First positioning hole; 78. Fixing component; 79. Fixing block; 710. Rotating shaft; 711. First hydraulic motor; 712. Cutter disc; 713. Positioning tube; 714. End cap; 8. Fan; 9. Suspension frame; 10. Grass outlet. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] Example 1: like Figures 1 to 8 As shown, the present invention provides a retractable and foldable lawnmower that can be used on both flat and slope terrain. The auxiliary mowing mechanism 7 and the foldable conveying device 6 are installed on a traditional lawnmower host with side-shifting and flipping functions.

[0027] The mowing unit includes a housing 1, inside which is a cutter shaft mechanism 5 consisting of a cutter shaft and multiple blades (which may employ an anti-loosening structure similar to that of existing side-shift mowers). The housing 1 is connected to an inverted U-shaped suspension frame 9 via a tilting mechanism 3 and a side-shifting mechanism 2. The suspension frame 9 is used to connect to the tractor's three-point suspension system. The tilting mechanism 3 typically includes a tilting frame connected to the housing 1, a tilting cylinder, etc., allowing the housing 1, along with the cutter shaft mechanism 5, to tilt longitudinally relative to the suspension frame 9 to adapt to the inclination angle of the working slope. The side-shifting mechanism 2 typically includes a parallel four-bar linkage and a side-shifting cylinder, allowing the housing 1, along with the cutter shaft mechanism 5, to move laterally relative to the suspension frame 9 to expand the single-operation width or avoid obstacles. The specific structures of the tilting and side-shifting mechanisms can be found in existing technologies, which are not the focus of this invention and will not be elaborated upon here.

[0028] A support plate is fixed to the outside of the mounting plate on one side of the hood 1, and a gearbox 4 is mounted on the support plate. The input end of the gearbox 4 is connected to the power take-off shaft of the tractor via a universal joint drive shaft, and its output end drives the cutter shaft mechanism 5 to rotate at high speed through a transmission system (such as a belt drive system including a drive wheel, a driven wheel and a belt, or a chain drive or gear drive), thus completing the main grass cutting operation. The cut grass is thrown out from the grass outlet 10 opened at the rear of the hood 1 under the action of airflow and centrifugal force from the cutter disc.

[0029] The auxiliary lawn mowing mechanism 7 of the present invention is as follows Figure 1 , 2 As shown in Figure 4, the auxiliary mowing mechanism 7 is located on the front side of the hood 1 and is used to clear the main mowing blind spot directly in front of or to the side of the tractor. It includes a cantilever beam 71, which is horizontally welded longitudinally or fixed to the front end plate of the hood 1 by high-strength bolts. The cantilever beam 71 extends forward horizontally, and its free end is hinged to a swing rod 72 by a vertical hinge pin, so that the swing rod 72 can swing up and down in a vertical plane perpendicular to the direction of travel.

[0030] To control the swing of the swing lever 72, see [link / reference]. Figure 4 A first hinge seat is installed on the top surface of the free end of the cantilever beam 71, and a second hinge seat is installed on the upper part of the swing arm 72. The cylinder end of the first hydraulic cylinder 73 is hinged to the first hinge seat, and the piston rod end is hinged to the second hinge seat. By controlling the extension and retraction of the first hydraulic cylinder 73 through the tractor's hydraulic system, the swing arm 72 can be raised or lowered, thereby adjusting the ground clearance of its end cutter head 712 to adapt to different heights of weeds or uneven ground.

[0031] An angle adjustment seat 74 is welded and fixed to the free end of the swing rod 72. In this embodiment, the angle adjustment seat 74 is a U-shaped bent steel plate with its opening facing upward. An angle adjustment rod 75 is hinged between the two side plates of the angle adjustment seat 74 by a transverse pin, so that the angle adjustment rod 75 can swing vertically around the hinge point in a fan shape.

[0032] To achieve fixation after the angle adjustment rod 75 degrees swings, such as Figure 4 As shown, four or more first positioning holes 76 are machined at equal angles along a fan-shaped area, centered on the hinge pin, on both side plates of the angle adjustment seat 74. A second positioning hole is machined at a corresponding position on the angle adjustment rod 75. When the operator swings the angle adjustment rod 75 to a suitable angle according to the shape of the work boundary (such as the edge of a ditch), a fastener 78 (such as a bolt or positioning pin) is simultaneously passed through one of the aligned first positioning holes 76 and the second positioning hole, and tightened with a nut to securely lock the angle adjustment rod 75 at that working angle. This achieves multiple discrete but commonly used angle settings, with fast, reliable, and low-cost adjustment.

[0033] A fixing block 79 is vertically welded to the free end of the angle adjusting rod 75. A vertical positioning tube 713 is welded to the side of the fixing block 79. A rotating shaft 710 is mounted inside the positioning tube 713 via two rolling bearings. The upper and lower ports of the positioning tube 713 are sealed by end caps 714 to prevent dust and grass clippings from entering. A first hydraulic motor 711 is fixedly mounted on the top of the fixing block 79 via a first motor mounting seat. The first hydraulic motor 711 is driven by the tractor's hydraulic system, and its output shaft is rigidly connected coaxially to the upper end of the rotating shaft 710 extending from the upper end of the positioning tube 713 via a coupling. The lower end of the rotating shaft 710 extends out of the positioning tube 713 and is coaxially fixedly mounted with a cutter head 712, on which a throw cutter or a fixed cutter can be mounted as needed.

[0034] During operation, the first hydraulic motor 711 drives the rotating shaft 710 and the cutter head 712 to rotate at high speed, cutting weeds in the auxiliary working area. The overall lifting and lowering is controlled by the first hydraulic cylinder 73, and the horizontal working angle is controlled by manually adjusting and locking the angle adjustment rod 75, so that the cutter head 712 can flexibly reach and clear the complex corner areas in front of the tractor.

[0035] The retractable and foldable conveyor device 6 of the present invention is as follows: Figure 5 , Figure 6 As shown, the conveying device 6 is installed on the rear side of the machine cover 1 to receive and transfer the hay thrown out from the hay outlet 10. It includes a fixed side frame 61 and a folding side frame 62. The fixed side frame 61 is welded from steel profiles, and its front end is firmly fixed to the lower rear of the machine cover 1 by bolts or welding. The fixed side frame 61 is designed in a zigzag shape, including a horizontal section 611 at the front and an inclined lifting section 612 at the rear, with the included angle between the two preferably at 45 degrees to achieve smooth lifting of the hay.

[0036] At the front end of the horizontal section 611 of the fixed side frame 61, a front steering roller 63 is mounted via a bearing housing. The folding side frame 62 is also welded from structural steel, and its front end is hinged to the end of the inclined lifting section 612 of the fixed side frame 61 via a transverse hinge shaft, allowing the folding side frame 62 to rotate around this hinge point, thus unfolding or folding. At the rear end of the folding side frame 62, a rear steering roller 64 is mounted via a bearing housing. Optionally, a middle steering roller can also be mounted in the middle of the fixed side frame 61.

[0037] A conveyor belt 65 (usually a rubber belt with anti-slip texture) is fitted onto the front guide roller 63 and the rear guide roller 64, forming a closed-loop conveying surface. Multiple transverse baffles 68 are vulcanized or riveted at regular intervals along the length of the outer surface of the conveyor belt 65. The baffles 68 act as scrapers and anti-slip devices when conveying forage.

[0038] To drive the conveyor belt 65, a second hydraulic motor 69 is installed on one side of the folding side frame 62. A drive sprocket is mounted on the output shaft of the second hydraulic motor 69, and a driven sprocket is mounted on the shaft end of the rear steering roller 64 (or the front steering roller 63). The two are connected by a chain to form a chain drive mechanism. The second hydraulic motor 69 is driven by the tractor's hydraulic system, thereby driving the conveyor belt 65 to run at a set speed.

[0039] To achieve the folding function of the conveying device, a second hydraulic cylinder 66 is connected between the inclined lifting section 612 of the fixed side frame 61 and the folding side frame 62. The cylinder body of the second hydraulic cylinder 66 is connected to a hinge seat on the fixed side frame 61, and its piston rod is connected to a hinge seat on the folding side frame 62. When long-distance transfer or storage of equipment is required, the operator retracts the second hydraulic cylinder 66, pulling the folding side frame 62 upward and forward around the hinge point until it is flush with the inclined lifting section 612 of the fixed side frame 61 (e.g., ...). Figure 6 As shown in the figure, the longitudinal dimensions of the equipment are greatly reduced. During operation, the second hydraulic cylinder 66 extends, pushes the folding side frame 62 to the horizontal or the required tilt angle, and locks the hydraulic cylinder, and the conveying device is in the unfolded working state.

[0040] To ensure the smooth operation of the conveyor belt 65 at the corner of the fixed side frame 61 (the junction of the horizontal and inclined sections) and to prevent it from running off-center or tilting, such as Figure 5 , 6 As shown, multiple pressure rollers 67 are fixedly installed on both sides of the corner frame. Each pressure roller 67 includes a wheel axle and a roller. One end of the wheel axle is rotatably connected to a bearing in the center hole of the roller. The other end of the wheel axle of the pressure roller 67 is vertically fixed to the frame of the fixed side frame 61. The groove or flat surface of its wheel rim presses against the two sides of the conveyor belt 65, providing downward pressure and lateral restraint to ensure stable conveying.

[0041] During operation, the hay thrown from the outlet 10 falls onto the conveyor belt 65 of the horizontal section 611 of the conveyor device. The belt with baffles 68 catches the hay and transports it backward. After being lifted by the 45-degree inclined lifting section 612, the hay is transported to a higher position and is finally thrown out from the unloading point at the end of the folded side frame 62, where it can fall into the hay storage box or trailer that follows.

[0042] like Figure 1 , 2As shown, two fans 8 are fixedly installed at appropriate positions on the suspension frame 9 (usually in front of the gearbox 4 and behind the tractor). The fans 8 are located behind the hydraulic oil tank (not shown in the figure), and their housings are fixedly connected to the horizontal beam of the suspension frame 9. The fans 8 are preferably axial flow fans, with each fan 8 blowing air towards the hydraulic system's oil tank. The power supply for the fans 8 can be directly taken from the tractor or driven by an independent hydraulic motor. The exhaust direction of the fans 8 is directed towards the hydraulic system's oil tank housing. During high-intensity continuous operation of the lawnmower, the hydraulic system generates a large amount of heat, which is transferred to the hydraulic oil tank. The forced airflow generated by the fans 8 blows across the hydraulic oil tank housing, greatly enhancing its heat dissipation capacity, effectively reducing the operating temperature of the internal hydraulic oil, thereby delaying oil deterioration, reducing wear, and improving the reliability and service life of the transmission system. This delays oil deterioration, reduces wear on key components such as pumps, valves, motors, and gears, and comprehensively improves the reliability and service life of the entire transmission and hydraulic system.

[0043] Please see Figure 7 , 8 A protective cover is installed above the conveyor and is integrally connected to the machine cover 1. The protective cover can prevent the cut grass from falling off the conveyor.

[0044] The detailed working principle of the flat-slope dual-purpose telescopic folding lawn mower of the present invention is described in the following operation flow: Phase 1: Task Preparation and Posture Adjustment (1) Mounting and power connection: Reliably connect and fix the lawnmower's suspension frame 9 to the tractor's three-point suspension system. Connect the tractor's power take-off shaft (PTO) to the input end of the lawnmower's gearbox 4 via a universal joint drive shaft to provide prime mover power to the entire system. Connect the output lines of the tractor's hydraulic system to the corresponding control valve interfaces of the first hydraulic cylinder 73, the second hydraulic cylinder 66, the first hydraulic motor 711, and the second hydraulic motor 69 on the lawnmower.

[0045] (2) Main unit attitude pre-adjustment: According to the terrain of the main slope of the area to be worked (such as flat ground or sloping slope), the driver operates the hydraulic valve in the tractor cab. Control the tilting cylinder of the tilting mechanism 3 to drive the hood 1 and its internal cutter shaft mechanism 5 to rotate around the tilting axis, so that the bottom plate of the hood is roughly parallel to the target slope, and set the basic working tilt angle of the main mowing component. Control the lateral movement cylinder of the lateral movement mechanism 2 to move the hood 1 laterally through the parallelogram linkage mechanism, thereby adjusting the lateral starting position of the main mowing width, or avoiding fixed obstacles on the side.

[0046] (3) Deployment of the auxiliary mowing mechanism: The driver operates the hydraulic valve to extend the piston rod of the first hydraulic cylinder 73, pushing the swing arm 72 downward to lower the auxiliary cutter head 712 installed at its end to a preset working height close to the ground. The driver manually adjusts the angle adjustment rod 75 in the horizontal plane according to the boundary terrain (such as the edge of a ditch, under a fence, or at the foot of a slope) that needs to be cleared in front of or to the side of the tractor. The horizontal working angle of the cutter head 712 is locked by inserting the fixing piece 78 (such as a bolt) into a first positioning hole 76 on the side of the aligned angle adjustment seat 74 and a second positioning hole on the angle adjustment rod 75. This allows the cutter head to be precisely aligned with the blind spot. The first hydraulic motor 711 is started, driving the rotating shaft 710 and the cutter head 712 to rotate at high speed, and the auxiliary mowing mechanism enters the standby state.

[0047] (4) Conveying device unfolding: The driver operates the hydraulic valve to extend the piston rod of the second hydraulic cylinder 66, pushing the folding side frame 62 to rotate backward and downward around its hinge point with the fixed side frame 61 until the conveying device 6 is fully unfolded, achieving the maximum conveying length and ideal unloading height. The second hydraulic motor 69 is started, driving the rear steering roller 64 to rotate via chain drive, thereby driving the conveyor belt 65 to run at the set speed. The baffles 68 on the surface of the conveyor belt move with it. The pressure rollers 67 at the corners of the conveying device are always in close contact with the upper and lower edges of the upper and lower conveyor belts of the conveyor belt 65 to prevent them from tilting or running off-center during operation, ensuring stable conveying.

[0048] (5) Start the cooling system: Start the fan 8 installed on the suspension frame 9 so that the airflow generated by it continuously blows onto the housing of the hydraulic oil tank to implement forced air cooling.

[0049] Phase Two: Task Execution (1) Main cutting and discharge: The tractor moves forward, and its PTO power is transmitted to the gearbox 4 through the universal joint. After the gearbox speeds up, it drives the cutter shaft mechanism 5 to rotate at high speed through the transmission system (such as belt drive), and the blades cut the grass below the main unit. The cut grass is thrown to the rear of the machine cover 1 by the centrifugal force and airflow generated by the rotation of the blades, and is evenly thrown onto the conveyor belt 65 of the horizontal section 611 of the unfolded conveyor device 6 through the grass outlet 10. Since the section of the conveyor belt 65 that receives the grass is equipped with a protective cover that is fixedly connected to the frame of the conveyor belt 65, the grass will not fall off from the other side of the conveyor belt if it is fed from one side of the conveyor belt 65.

[0050] (2) Automatic collection and conveying of hay: The hay falling on the conveyor belt 65 is blocked and grabbed by the running baffles 68 and moves backward with the belt. When the hay passes through the inclined lifting section 612, it is lifted upward. Finally, the hay is thrown off the belt at the unloading point at the end of the conveyor device and falls into the trailer following behind or into the hay storage box fixedly installed below the rear end of the conveyor device by inertia. The whole process realizes continuous automated operation of cutting grass and collecting, lifting and unloading hay.

[0051] (3) Simultaneous auxiliary boundary mowing: While the tractor moves forward and the main mowing is underway, the pre-deployed auxiliary mowing mechanism 7 works simultaneously. The high-speed rotating auxiliary cutter head 712 effectively clears weeds in blind spots such as the front and sides of the tractor, as well as the edges, corners, and slope edges that the main mowing mechanism cannot cover due to structural limitations. Its horizontal angle and ground clearance have been set in the preparation stage to maintain stable operation.

[0052] (4) Continuous heat dissipation: During the entire high-intensity operation, the fan 8 works continuously to cool the high-load hydraulic oil tank, preventing it from overheating and causing lubrication failure or damage to parts, thus ensuring the reliable operation of the core transmission components.

[0053] Phase 3: Completion of work and equipment packing (1) Stop operation: The tractor stops moving forward, the PTO power is disconnected, and the main and auxiliary mowing components stop rotating. The second hydraulic motor 69 is stopped, and the conveyor belt stops rotating.

[0054] (2) Retracting the auxiliary mechanism: Operate the hydraulic valve to retract the first hydraulic cylinder 73, and lift the swing arm 72 and the auxiliary mowing mechanism 7 as a whole to the transport position. The angle adjustment rod 75 can be reset to a space-saving angle parallel to the forward direction and locked.

[0055] (3) Folding conveyor: Operate the hydraulic valve to retract the second hydraulic cylinder 66, pull the folding side frame 62 to rotate forward and upward around the hinge point until it is tightly joined with the inclined lifting section 612 of the fixed side frame 61, greatly shortening the longitudinal length of the equipment.

[0056] (4) Turn off the cooling fan: Turn off fan 8.

[0057] (5) Transfer equipment: At this time, the entire lawnmower is in a compact transport state, which makes it easy for the tractor to safely and efficiently pull it to the next work site or storage location.

[0058] In summary, this invention, through ingenious mechanism integration, achieves the integration of mowing, auxiliary boundary clearing, automatic collection and transportation of hay, and heat dissipation of key components, significantly improving the efficiency, quality, adaptability, and equipment reliability of mowing operations. It is particularly suitable for situations where there are high requirements for operational integrity and efficiency, such as road maintenance, dam maintenance, and large ranches.

[0059] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of the invention is indicated by the claims.

[0060] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention.

Claims

1. A retractable and foldable lawnmower suitable for both flat and slope applications, comprising a hood (1), a suspension frame (9), a side-shifting mechanism (2), a flipping mechanism (3), a gearbox (4), and a cutter shaft mechanism (5), wherein the hood (1) is connected to the suspension frame (9) via the flipping mechanism (3) and the side-shifting mechanism (2), characterized in that: A conveying device (6) is fixedly connected to the rear side of the machine cover (1), and an auxiliary mowing mechanism (7) is provided on the front side of the machine cover (1). The auxiliary mowing mechanism (7) includes a cantilever beam (71) fixed to the front of the hood (1). A swing rod (72) is vertically hinged to the free end of the cantilever beam (71). The two ends of the first hydraulic cylinder (73) are respectively hinged to the cantilever beam (71) and the swing rod (72). An angle adjustment seat (74) is fixedly connected to the free end of the swing rod (72). The angle adjustment seat (74) is hinged to one end of the angle adjustment rod (75). The side of the angle adjustment seat (74) is provided with a plurality of first positioning holes (76) arranged in a fan shape around the hinge center. The angle adjustment rod (75) 5) A second positioning hole is provided on the rod, and the angle is locked by a fixing member (78) passing through the corresponding first positioning hole (76) and second positioning hole; a vertical fixing block (79) is fixed to the free end of the angle adjusting rod (75), and a vertical rotating shaft (710) is rotatably mounted on the fixing block (79) through a bearing. A first hydraulic motor (711) is also fixed on the fixing block (79). The output shaft of the first hydraulic motor (711) is coaxially fixedly connected to the upper end of the rotating shaft (710), and a cutter head (712) is fixed to the lower end of the rotating shaft (710). The conveying device (6) includes a fixed side frame (61) fixedly connected to the machine cover (1) and a folding side frame (62) hinged to the rear end of the fixed side frame (61). The front end of the fixed side frame (61) is provided with a front steering roller (63), and the rear end of the folding side frame (62) is provided with a rear steering roller (64). The conveyor belt (65) is sleeved on the front steering roller (63) and the rear steering roller (64). The two ends of the second hydraulic cylinder (66) are respectively hinged to the fixed side frame (61) and the folding side frame (62).

2. The retractable folding lawn mower for both flat and slope applications according to claim 1, characterized in that, The fixed side frame (61) has a horizontal section (611) and an inclined lifting section (612) connected at an angle to the horizontal section (611), and the folding side frame (62) is hinged to the end of the inclined lifting section (612).

3. A retractable and foldable lawnmower suitable for both flat and slope applications according to claim 2, characterized in that, Multiple pressure rollers (67) are provided on both sides of the corner between the horizontal section (611) and the inclined lifting section (612) of the fixed side frame (61). The axle of the pressure roller (67) is fixedly connected to the side frame, and the rolling surface of the pressure roller (67) rolls in contact with the two side edges of the conveyor belt (65).

4. A retractable and foldable lawnmower suitable for both flat and slope applications according to claim 3, characterized in that, The outer surface of the conveyor belt (65) is provided with a plurality of transverse baffles (68) spaced apart along its circumferential direction.

5. A retractable and foldable lawnmower suitable for both flat and slope applications according to claim 2, characterized in that, A second hydraulic motor (69) is provided on one side of the folded side frame (62), and the second hydraulic motor (69) drives the rear steering roller (64) or the front steering roller (63) through a chain drive mechanism.

6. A retractable and foldable lawnmower suitable for both flat and slope applications according to claim 1, characterized in that, The machine cover (1) is provided with a grass outlet at the position corresponding to the feeding end of the conveying device (6), and a grass storage box is provided below the unloading end of the conveying device (6).

7. A retractable and foldable lawnmower suitable for both flat and slope applications according to claim 1, characterized in that, The rotating shaft (710) is installed in the vertical positioning tube (713) by bearings. The positioning tube (713) is fixed on the fixing block (79), and its upper and lower ends are closed by end caps (714).

8. A retractable and foldable lawnmower suitable for both flat and slope applications according to claim 1, characterized in that, The angle adjustment seat (74) is a U-shaped bent plate.

9. A retractable and foldable lawnmower suitable for both flat and slope applications according to claim 1, characterized in that, The suspension frame (9) is equipped with a fan (8) for blowing air into the hydraulic system.

Images