Heavy large-width mower

Abstract

The invention discloses a heavy type large-width mower which comprises a main rack, a transverse moving oil cylinder, a guide type special-shaped structure, a guide type sliding rail, a cutter shaft, a hoe and the like, and the transverse moving oil cylinder is installed on the main rack and drives a whole machine platform to transversely move left and right; the guiding type special-shaped structure is arranged on one side of the machine body, fixedly connected with the guiding type sliding rail and used for guiding tree vines, branches and leaves to pass conveniently and preventing winding and hanging. The cutter shaft is driven by the belt pulley to rotate to drive the hoe to perform ploughing and mowing; the adjustable roller is arranged at the tail of the machine body, and the front section and the rear section of the adjustable roller achieve angle fine adjustment through independent adjusting holes and are used for controlling the forage discharging direction; the cover body structure is overlapped in multiple layers, and the tensioning wheel, the probe type oil nipple and the detachable cover plate are combined, so that the protection property and the maintenance convenience of the whole machine are improved; the flying wing type rear cover plate is lifted in a linkage mode through the lifting oil cylinder, maintenance is convenient, and the device is stable in structure, flexible to adjust, good in mowing and grass discharging effect and suitable for efficient mowing operation in a large area or an area with dense obstacles.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and specifically to a heavy-duty large-width mower. Background Art

[0002] At present, mowers are widely used in scenarios such as farmlands, orchards, vineyards, lawn pastures, etc., for completing the removal of surface weeds, the cleaning of vines, and the tidying of field operation areas. They are important and common agricultural machinery equipment in modern agricultural production. However, with the increasingly complex operation environment and the continuous expansion of the operation area, there are still many deficiencies in the structural design, functional layout, and practicality of existing mowing equipment, making it difficult to meet the comprehensive requirements of high-intensity, high-efficiency, and multi-terrain operations.

[0003] Firstly, most traditional mowers have a relatively simple structure and lack effective guiding structure design. During actual operation, when facing complex terrain environments such as grapevines, tree branches, and miscellaneous shrubs, the equipment is extremely easy to be hooked and entangled, which not only affects the continuity of operation but also may cause equipment damage, posing a great safety hazard. Especially in orchards or pergola planting areas where the space is narrow and there are many obstacles, it is difficult for existing equipment to maintain a continuous operation state.

[0004] Secondly, most of the mowers widely used in the market at present have a fixed cutting width and lack the functions of lateral movement or offset adjustment. They cannot flexibly adjust the mowing position according to the operation path or the target grass area, resulting in the need to frequently change the driving route of the tractor during equipment use, with cumbersome operation and low efficiency. Especially in irregular plots or fields with varying row spacings, the operation matching is poor, affecting the overall operation coverage rate.

[0005] In addition, since mowers usually belong to heavy machinery and their overall weight is relatively large, in traditional designs, the rear cover mostly adopts a single-piece structure, and hydraulic devices are required for lifting during operation. However, existing products usually need to be equipped with two oil cylinders to achieve synchronous lifting of the rear cover. This not only leads to a relatively high system cost but also, when a fault occurs in the hydraulic system, it is difficult to manually lift the single-piece integral rear cover, thus affecting the emergency maintenance and safety of the equipment.

[0006] In terms of forage handling, existing mowing equipment generally adopts a simple forage discharge mechanism and is not equipped with a special adjustable guiding component. It is difficult for the forage to be smoothly discharged after cutting, and it often causes forage accumulation at the cutter shaft or the discharge port due to a large amount of mowing and wet and slippery forage quality, etc. This not only reduces the operation efficiency but also easily causes equipment jamming or even damage. Although some products are equipped with forage discharge auxiliary devices such as drums, most of them are fixed and cannot flexibly adjust the forage landing angle and distribution path according to the actual forage situation or the discharge direction, easily resulting in problems such as uneven forage piles and blocked channels.

[0007] In summary, existing lawn mowers generally have problems such as insufficient passing ability, poor adjustment ability, low grass discharging efficiency, inconvenient maintenance of the transmission system, single function of the drum, and inconvenient structural inspection. There is an urgent need to optimize and improve their structural layout, functional modules, and adjustment methods to enhance the adaptability, operability, and maintenance efficiency of lawn mowing equipment in multiple scenarios. Summary of the Invention

[0008] The purpose of the present invention is to provide a heavy-duty large-width lawn mower to solve the problems raised in the above background technology.

[0009] To solve the above technical problems, the present invention provides the following technical solution: A heavy-duty large-width lawn mower includes a main frame, a transverse movement oil cylinder, a guiding special-shaped structure, a guiding slide rail, a cutter shaft, hoe cutters, a belt drive system, an adjustable drum, a multi-level hood structure, and a grass discharging structure. The main frame is a frame base that supports the overall structure of the lawn mower. The transverse movement oil cylinder is arranged on the main frame and is connected to the hydraulic system through a transverse movement oil cylinder oil pipe, and is used to drive the main frame to move in the left and right directions. The guiding special-shaped structure is arranged on one side of the main frame and is connected to the guiding slide rail through bolts, and is used to guide the tree vines and branches and leaves to slide smoothly during operation and prevent entanglement. The cutter shaft is driven to rotate through the belt drive system and drives the hoe cutters to plow and mow the grass. The adjustable drum is arranged at the tail of the main frame, and the front section and the rear section are respectively provided with a first adjustment hole and a second adjustment hole, which are used to independently adjust the front and rear angles of the drum. The multi-level hood structure covers the outside of the transmission system and cooperates with a guiding special-shaped pulley cover and a hollowed-out pulley cover plate to protect the internal tension pulley, large pulley, and small pulley. The grass discharging structure includes a drum and a movable baffle, which are used to control the grass discharging direction and prevent accumulation.

[0010] According to the above technical solution, the transverse movement oil cylinder is fixedly connected to the main frame, and the other end is connected to an operation platform that can slide horizontally.

[0011] According to the above technical solution, the guiding special-shaped structure has an inclined surface shell structure and is welded to the side of the main frame, and the guiding slide rail is fixed below it, and is used to guide the machine tool to pass through the obstacle area.

[0012] According to the above technical solution, both the first adjustment hole and the second adjustment hole of the drum are connected to the main frame through bolts, and the drum is a hollow cylindrical structure.

[0013] According to the above technical solution, the belt drive system includes a tension pulley, a tension spring, a large pulley, and a small pulley, and the belt tension is adjusted through the tension pulley.

[0014] According to the above technical solution, a disassembly and assembly port is provided at the junction of the multi-level hood structure and the guided special-shaped pulley cover to facilitate maintenance.

[0015] According to the above technical solution, the tensioning wheel is provided with a probe type oiling nozzle for lubricating and oiling the bearing.

[0016] According to the above technical solution, it also includes a wing-type lifting connecting plate and a lifting cylinder. The lifting cylinder drives the wing-type connecting plate to drive the rear cover plate to open, so as to expose the internal transmission structure for maintenance.

[0017] According to the above technical solution, lifting holes are provided on both sides of the frame for the transfer and transportation of the equipment.

[0018] Compared with the prior art, the present invention is provided with a main frame, a transverse cylinder, a guided special-shaped structure, a guided slide rail, a knife shaft, a hoe knife, etc. The transverse cylinder is installed on the main frame to drive the whole machine platform to move horizontally left and right; the guided special-shaped structure is arranged on one side of the machine body and is fixedly connected to the guided slide rail to guide vines, branches and leaves to pass through smoothly to prevent entanglement; the knife shaft is driven to rotate by a pulley to drive the hoe knife to plow and mow; the adjustable roller is arranged at the rear of the machine body, and its front and rear sections are respectively fine-tuned in angle through independent adjustment holes to control the direction of forage discharge; the cover structure is multi-layered and overlapped, combined with a tensioning wheel, a probe-type oil nozzle and a detachable cover plate, which improves the protection and maintenance convenience of the whole machine; the wing-type rear cover plate is lifted by the lifting cylinder for easy maintenance. The device has a stable structure, flexible adjustment, good mowing and discharge effects, and is suitable for efficient mowing operations in large areas or areas with dense obstacles. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0020] In the attached picture:

[0021] Figure 1 It is a side view structural schematic diagram of a heavy-duty wide-width lawn mower proposed by the present invention;

[0022] Figure 2 It is a schematic side view from another angle of a heavy-duty wide lawn mower proposed by the present invention;

[0023] Figure 3 It is a front view structural schematic diagram of a heavy-duty wide-width lawn mower proposed by the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of a heavy-duty wide lawn mower proposed by the present invention when viewed from above;

[0025] Figure 5It is a schematic top view structure diagram of a heavy-duty large-width mower proposed by the present invention;

[0026] Figure 6 It is a right-side internal structure diagram of a heavy-duty large-width mower proposed by the present invention.

[0027] In the figure: 1 Guided special-shaped structure, 2 Guided slide rail, 3 Multi-level hood structure, 4 Transverse movement oil cylinder, 41 Transverse movement oil cylinder oil pipe, 5 Oblique circular end face pin rod, 6 Movable baffle, 7 Sliding suspension, 8 Imitation breathable grille, 9 Guided special-shaped pulley cover, 10 Hollowed pulley cover plate, 11 Large pulley, 12 Tensioning pulley, 13 Disassembly and installation opening, 14 Small pulley, 15 Tensioning spring, 16 Belt drive system, 17 Mud scraper, 18 Protective cover, 19 Gearbox height adjustment bolt, 20 Gearbox, 21 Wide-body rear suspension, 22 Split rear guide rail seat, 221 Front guide rail, 222 Rear guide rail, 23 Probe type oil filling nozzle, 24 Flying wing type lifting connecting plate, 25 Rear cover plate, 26 Handle, 27 Lifting oil cylinder, 28 Lifting hole, 29 Lifting oil cylinder oil pipe, 30 Rake teeth, 31 Knife shaft, 32 Hoe knife, 33 Adjusting plate, 34 Adjusting bolt, 35 Transmission shaft, 36 Gearbox adjustment seat, 37 Reinforcing rib, 38 Adjustable roller, First adjustment hole 39, Second adjustment hole 40. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Refer to Figures 1-6 : A heavy-duty large-width mower includes a main frame and a guided special-shaped structure 1. The main frame is the basic load-bearing structure of this mower. It is integrally in a frame form and is located in the center of the mower, used to support and connect each main working component. The guided special-shaped structure 1 is welded and fixed at the lower cross beam on the left side of the main frame, forming an inclined wrapping structure with the main frame. Its function is to guide the tree branches and vines to slide over the machine body smoothly during field operations, prevent entanglement or scratching of the outer cover, and at the same time play a role in strengthening the support of the side plate. The guided slide rail 2 is connected to the lower edge of the guided special-shaped structure 1 through bolts to form an integrated diversion device, increasing the passing performance and stability of the machine body in complex terrains. The oblique circular end face pin rod 5 is inserted into the two side ear plates at the rear of the main frame to fix the guided special-shaped structure 1 and the multi-level hood structure 3;

[0030] The multi-level hood structure 3 is connected to the top of the main frame by bolts and adopts a welded structure with reinforcing ribs to improve the seismic strength and torsional resistance. The transverse movement cylinder 4 is fixedly installed in the middle of the frame and is connected to the transverse movement cylinder oil pipe 41. The whole machine can be horizontally adjusted by controlling the sliding suspension 7, which is convenient for centering the operation path. The sliding suspension 7 is installed under the front frame cross beam and adopts a connection method of sliding rail and guide rail.

[0031] The movable baffle 6 is fixedly installed under the main frame, which can effectively prevent foreign matters such as grass clippings and stones from splashing when the blade rotates at high speed;

[0032] The imitation breathable grille 8 is fixed on the right side of the multi-level hood structure 3 by screws. The grille is formed by stamping high-strength aluminum alloy and has good heat dissipation and protection functions. The guide-type special-shaped pulley cover 9 is welded to the lower right end of the multi-level hood structure 3. Its front end covers the periphery of the pulley, and the rear end is connected to the stiffening plate of the right side guard of the main frame by bolts. The whole is in a conical sinking structure, effectively avoiding the entanglement of vines on the pulley system. The hollow pulley cover plate 10 is installed on the guide-type special-shaped pulley cover 9 with screws, adopts an upward-opening structure and is provided with a disassembly and assembly port 13. The cover plate covers the small pulley 14, the large pulley 11, the middle tension pulley 12 and the tension spring 15 to form a complete belt drive protection system. The belt drive system 16 is connected to the PTO output end of the tractor, and the main driving force is transmitted through the belt.

[0033] The mud scraper 17 is located in the middle and lower part at the rear of the whole machine and is connected to the tail of the main frame through an adjustment chute and a fixing bolt. The angle can be finely adjusted up and down to adapt to the thickness of the soil on different ground surfaces. An adjustable roller 38 is arranged below the mud scraper 17. The roller 38 is provided with a first adjustment hole 39 on the side. By fixing with an adjustment connecting piece, this hole allows the operator to finely adjust the front section of the roller, so that the angle of the front section during mowing adapts to different lawn conditions, ensuring that the mowing blade contacts the grass cluster more fully and the forage falls evenly on the ground. At the same time, a second adjustment hole 40 is provided at the rear of the roller 38, which is connected to an independent adjustment mechanism, and the angle and height of the rear section can be adjusted separately, so that the remaining forage after mowing can be more smoothly guided away from the cutting area, preventing grass clippings from overlapping or being disturbed again.

[0034] Through the coordinated adjustment of the first adjustment hole 39 and the second adjustment hole 40, the front section and the rear section of the roller 38 can be independently and finely adjusted under different working conditions, so as to meet the requirements of the mower for cutting accuracy and forage discharge direction in various working environments.

[0035] The protective cover 18 is sleeved on the connection part of the tractor PTO transmission shaft. The outer cover is connected to the gearbox height adjustment bolt 19 to fix the position of the height adjustment gearbox 20 and adapt to the height of the output shaft of different models of tractors.

[0036] The front end of the wide-body rear suspension 21 is fixedly connected to the suspension above the protective cover 18 by bolts, and its rear end is connected to the front guide rail 221 and the rear guide rail 222 in the split rear guide rail seat 22. The split rear guide rail seat 22 facilitates later maintenance and replacement.

[0037] At the rear of the hollow pulley cover plate 10, there is a rearward probe-type oil filler 23, which is connected to the bearing part of the tension pulley 12, facilitating oil replenishment while avoiding the oiler scraping against sundries.

[0038] The wing-type lifting connecting plate 24 is fixed to the rear cover plate 25 by bolts and is connected to the fixed bracket above the vehicle frame through the lifting oil cylinder 27. Only one oil cylinder is required to synchronously open the double-opening rear cover plate 25. The handles 26 are installed on both sides of the wing-type lifting connecting plate 24, facilitating manual opening and fixing. The cylinder body of the lifting oil cylinder 27 is connected to the fixed seat, and the piston rod is fixed to the connecting plate 24 to achieve synchronous lifting.

[0039] The lifting holes 28 are opened at the front end and both sides of the reinforcing plates at the rear end of the main frame for the loading, unloading, hoisting, and transporting of the whole machine. The lifting oil cylinder oil pipe 29 is connected to the oil cylinder 27 through a hydraulic buckle to guide the hydraulic oil to drive the lifting action. The rake teeth 30 are installed on the cutter shaft 31 under the main frame and are connected by bolts, which can be replaced individually and are suitable for operations such as raking grass and gathering vines.

[0040] The cutter shaft 31 is supported by bearings on both sides and installed in the middle of the vehicle frame. It is driven by a pulley to rotate, driving the hoe blades 32 to turn the soil and cut the grass and vines.

[0041] The adjusting plate 33 and the drive shaft adjusting bolt 34 are connected to the side plate of the vehicle frame through obliquely installed connection holes. The drive shaft adjusting bolt 34 pushes the adjusting plate 33 to drive the drive shaft 35 to move back and forth to adjust the belt tension. The gearbox adjusting seat 36 is provided with a U-shaped groove structure and is installed in cooperation with the screw holes on the gearbox 20. Two reinforcing ribs 37 are welded on its upper part to enhance the support strength and stability of the gearbox and ensure the long-term operation accuracy.

[0042] When the device is in use, the tractor outputs power through the PTO and is connected to the PTO interface at the front end of the device. The PTO input end with the protective cover 18 is fixedly connected to the fixed seat of the gearbox 20 after adjusting the height through the adjusting bolts. At this time, the hydraulic system is started, and the hydraulic oil enters each adjusting mechanism through the pipeline to provide the necessary driving force and position control signals for subsequent operations.

[0043] After starting, the transverse movement oil cylinder 4 is started to horizontally translate the whole machine platform left and right, making the device in the predetermined operation area; at the same time, the sliding suspension 7 and the wide-body rear suspension 21 work together to make the overall force of the fuselage stable. The guiding special-shaped structure 1 and the guiding slide rail 2 below work together to guide the body to avoid deviation caused by the interference of tree vines and branches during the forward movement, and at the same time enhance the overall structural rigidity of the fuselage.

[0044] During the working process, the cutter shaft 31 rotates at a high speed driven by a belt, driving the hoe cutter 32 to plow, mow and cut the grass in the bushes. At the same time, the multi-level hood structure 3 covers the internal transmission components, and the guide-shaped special pulley cover 9 and the hollow pulley cover plate 10 cooperate to ensure the coordinated operation of the tensioning pulley 12, the small pulley 14 and the large pulley 11 through the belt drive system 16. The movable baffle 6 is adjusted synchronously at the rear to ensure that the grass is accurately discharged during mowing without secondary interference. The roller 38 is provided with a first adjustment hole 39 and a second adjustment hole 40 at the front and rear. Through independent adjustment of the front and rear sections, the falling angle of the grass after mowing is optimized to prevent the grass from piling up again in the working area.

[0045] The mud scraping plate 17 provided at the rear of the device automatically or manually adjusts the angle according to the environmental humidity and sediment conditions during the operation, effectively scraping off the wet mud and sundries attached to the transmission system and around the cutter shaft 31 to ensure the smooth operation of each transmission component. The outside of the hood is equipped with a form-fitting breathable grille 8, which not only ensures the internal temperature and the state of the lubricating oil, but also prevents sundries from entering the interior of the device. The probe-type oil nozzle 23 is connected to the bearing part of the tensioning pulley 12, facilitating timely replenishment of lubricating oil, thereby avoiding part wear or abnormal operation caused by dry friction.

[0046] After the operation is completed, the tractor disconnects the PTO power, and the hydraulic system automatically reduces the pressure. The wing-type lifting connecting plate 24 and the rear cover plate 25 work synchronously through the lifting cylinder 27 to lift the double-opening rear cover plate 25 at the same time. The staff can repair the cutter shaft 31 and the hoe cutter 32. Hoisting holes 28 are provided on both sides of the whole machine, facilitating the transfer or loading and unloading of the equipment through hoisting tools. The design of the split rear guide seat 22 and the wide-body rear suspension 21 ensures the balanced force of the equipment during transportation, ensuring the overall stability and reducing the impact of vibration on the equipment.

[0047] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0048] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A heavy-duty large-width mower, comprising a main frame, a transverse shift cylinder (4), a guided special-shaped structure (1), a guided slide rail (2), a cutter shaft (31), hoe blades (32), a belt drive system (16), an adjustable roller (38), a multi-level hood structure (3), and a grass discharging structure, characterized in that: The main frame is a frame base for supporting the overall structure of the mower; The transverse shift cylinder (4) is arranged on the main frame and is connected to a hydraulic system through a transverse shift cylinder oil pipe (41) for driving the main frame to move in the left-right direction; The guided special-shaped structure (1) is arranged on one side of the main frame and is connected to the guided slide rail (2) by bolts for guiding tree vines and branches and leaves to slide smoothly during operation and preventing entanglement; The cutter shaft (31) is driven to rotate through the belt drive system (16) and drives the hoe blades (32) to plow and mow the grass; The adjustable roller (38) is arranged at the tail of the main frame, and a first adjustment hole (39) and a second adjustment hole (40) are respectively arranged at the front section and the rear section for independently adjusting the front and rear angles of the roller; The multi-level hood structure (3) covers the outside of the drive system and cooperates with a guided special-shaped pulley cover (9) and a hollowed pulley cover plate (10) to protect the internal tension pulley (12), large pulley (11), and small pulley (14); The grass discharging structure includes a roller (38) and a movable baffle (6) for controlling the grass discharging direction and preventing accumulation.

2. The heavy-duty large-width mower according to claim 1, wherein: The transverse shift cylinder (4) is fixedly connected to the main frame, and the other end is connected to a horizontally slidable operation platform.

3. A heavy-duty large-width mower according to claim 1, characterized in that: The guided special-shaped structure (1) has an inclined surface shell structure and is welded to the side of the main frame, and the guided slide rail (2) is fixed below it for guiding the machine tool to pass through the obstacle area.

4. A heavy-duty large-width mower according to claim 1, characterized in that: Both the first adjustment hole (39) and the second adjustment hole (40) of the roller (38) are connected to the main frame by bolts, and the roller (38) is a hollow cylindrical structure.

5. A heavy-duty large-width mower according to claim 1, characterized in that: The belt drive system (16) includes a tension pulley (12), a tension spring (15), a large pulley (11), and a small pulley (14), and the belt tension is adjusted through the tension pulley (12).

6. A heavy-duty large-width mower according to claim 1, characterized in that: An assembly and disassembly port (13) is provided at the junction of the multi-level hood structure (3) and the guided special-shaped pulley cover (9) for easy maintenance.

7. A heavy-duty large-width mower according to claim 1, characterized in that: The tension pulley (12) is provided with a probe-type grease nipple (23) for lubricating and refueling the bearing.

8. A heavy-duty large-width mower according to claim 1, characterized in that: It further includes a wing-type lifting connecting plate (24) and a lifting cylinder (27), and the lifting cylinder (27) drives the wing-type connecting plate (24) to drive the rear cover plate (25) to open for exposing the internal drive structure for maintenance.

9. A heavy-duty large-width mower according to claim 1, characterized in that: Lifting holes (28) are provided on both sides of the frame for the transfer and handling of the equipment.

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