Cutting system and intelligent mower

Abstract

The utility model relates to the technical field of mowers, in particular to a cutting system and an intelligent mower. The cutting system comprises a cutting device and a position adjusting device. Through operation of the driving unit, efficient and accurate adjustment of the transverse position of the cutting device can be achieved. The driving unit is carried on the connecting frame and is in sliding fit with the transverse guide structure, the driving part of the driving unit directly acts on the driven part, and the connecting frame is driven to transversely slide relative to the transverse guide structure through displacement of the driving part relative to the driven part, so that the cutting device synchronously completes position adjustment. Compared with a traditional deflector rod mechanical structure, the design effectively improves the maximum stroke and control precision of transverse displacement, the controllable characteristic of the driving unit can achieve rapid control and response, the operation requirement of large-range transverse cutting of the mower under complex terrains can be met, and the position control precision during fine operation can be ensured.

Description

Technical Field

[0001] The present application relates to the technical field of lawn mowers, and in particular to a cutting system and an intelligent lawn mower. Background Art

[0002] Lawn mowers are suitable for automated mowing and maintenance of urban green lawns, home garden lawns, and other scenes. At present, the blade of the lawn mower is located in the center, resulting in poor cutting effects on both sides, so there is a certain demand for lateral displacement of the blade. In the prior art, such as the technical solution disclosed in Chinese patent CN118648434A, a lever is used to realize the left and right lateral swing of the lawn mower blade. Limited by the swing space requirements and reliable stroke of the lever, the distance the blade moves left and right is strictly constrained, and a large distance of left and right sliding cannot be achieved. In addition, the control accuracy is limited, resulting in a limited expansion of the cutting range of the blade. Due to the limitations of the structural design, the cutting area cannot flexibly cover the two sides of the fuselage and the surrounding areas of obstacles in complex environments, resulting in incomplete lawn mowing and a large demand for manual secondary mowing, which seriously affects the intelligence level and use efficiency of the lawn mower. Therefore, there is an urgent need for a technical solution that can realize a large distance left and right translation of the cutting part to solve the deficiencies in the prior art. Utility Model Content

[0003] The main purpose of the present application is to provide a cutting system and an intelligent lawn mower to solve the problem that the cutting system of the lawn mower in the related art cannot achieve long-distance left and right translation.

[0004] According to a first aspect of the present application, a cutting system is provided for a lawn mower. The cutting system includes: a cutting device and a position adjustment device. The position adjustment device includes a support frame, a transverse guide structure, a drive unit and a connecting frame. The transverse guide structure is fixed to the support frame, and the cutting device and the drive unit are respectively arranged on the connecting frame. The connecting frame is slidably connected to the transverse guide structure. The drive unit includes a driving part, and the transverse guide structure includes a passive part. The driving part is connected to the passive part; wherein the drive unit drives the driving part to move relative to the passive part to adjust the sliding of the connecting frame relative to the transverse guide structure, so that the cutting device performs a moving action in the length direction of the transverse guide structure.

[0005] The present application provides a cutting system in which the operation of a drive unit enables efficient and precise adjustment of the lateral position of the cutting device. The drive unit is mounted on a connecting frame and slidably engages a lateral guide structure. Its driving portion directly acts on the driven portion. The displacement of the driving portion relative to the driven portion drives the connecting frame to slide laterally relative to the lateral guide structure, allowing the cutting device to synchronously complete position adjustment. Compared to traditional lever mechanisms, this design effectively improves the maximum travel and control accuracy of lateral displacement. Furthermore, the controllable nature of the drive unit enables rapid control and response, meeting the requirements of large-scale lateral cutting operations in complex terrain while ensuring position control accuracy during fine work.

[0006] In terms of structural design, the direct coupling of the driving and driven components eliminates the need for an intermediate transmission mechanism, fundamentally avoiding the bulky cutting mechanism caused by an excessively long transmission chain and making the entire cutting system's horizontal layout more compact. Furthermore, because the drive unit moves synchronously with the cutting mechanism, the elimination of redundant transmission components significantly reduces the load mass of the moving assembly. This allows for the use of a drive unit with lower power requirements and a smaller size, improving system energy efficiency while optimizing the mower's spatial layout.

[0007] The support frame also serves as a foundational structure, providing a rigid mounting base for the lateral guide assembly, ensuring precise spatial positioning of the cutting mechanism and position adjustment mechanism during operation. When integrated into the mower, the support frame provides a secure connection to the machine body.

[0008] In some exemplary embodiments of the present application, the driving unit and the cutting device are respectively located on opposite sides of the driven part, and the driving unit, the driven part and the cutting device are arranged in sequence along the forward direction of the lawn mower.

[0009] In this type of embodiment, the driving unit and the cutting device are respectively arranged on both sides of the driven part, forming a symmetrical load distribution through the connecting frame, and realizing dynamic force balance by utilizing the mechanical coupling effect. This arrangement effectively offsets the eccentric torque generated by the weight of the components and the driving force during operation, significantly reduces the lateral load and mechanical vibration of the guide structure, and enables the cutting device to maintain stable lateral positioning accuracy even under high-speed operation or complex road conditions. At the same time, it is integrated into the driven part in a mechanically symmetrical manner, which not only avoids the structural bias problem caused by unilateral load, but also improves the overall rigidity of the system by sharing the rigid support structure, providing reliable mechanical stability for long-term and high-frequency operations.

[0010] In some exemplary embodiments of the present application, the driven part is a rack, the driving part is a gear, the gear is engaged with the rack, and the driving unit drives the gear to rotate so that the gear is displaced along the length direction of the rack.

[0011] In this type of embodiment, the driven part is a rack and a driving gear, forming a rack-and-pinion transmission mechanism. Its linear motion characteristics are highly compatible with the lateral adjustment requirements of the cutting device. This transmission form not only has extremely high control sensitivity, allowing precise displacement control with a single tooth pitch, but also uniformly converts the rotational power of the drive unit into linear motion through full-width contact of the meshing tooth surfaces, effectively avoiding eccentric torque caused by unilateral loads. Even when equipped with a large-mass cutting device, the high-rigidity transmission of the rack-and-pinion pair ensures smooth sliding of the moving components, reduces wear and vibration of the guide structure, and provides reliable mechanical stability for long-term, high-frequency operations.

[0012] In some exemplary embodiments of the present application, on a horizontal projection plane, the rack and the gear coincide with each other.

[0013] In this type of embodiment, the drive gear is arranged along the vertical meshing space of the rack, utilizing the vertical clearance between the connecting frame and the transverse guide structure to shift the space occupied by the transmission assembly from the horizontal dimension to the vertical dimension. This design avoids the need to install additional transmission components within the horizontal space already occupied by the cutting device and drive unit. By efficiently utilizing the three-dimensional space, the horizontal projection area of ​​the entire cutting system is effectively reduced, significantly improving the space utilization of the lawn mower chassis.

[0014] In some exemplary embodiments of the present application, the support frame includes at least two support arms spaced apart in the vertical direction, the support arms include two sub-support arms spaced apart along the length direction of the transverse guide structure, a fixed frame is provided between the two sub-support arms spaced apart in the vertical direction, and the fixed frame is rotatably connected to the two sub-support arms spaced apart in the vertical direction, and the rotation axis of the fixed frame relative to any sub-support arm is parallel to the length direction of the transverse guide structure, and the driven part is fixed between the two fixed frames.

[0015] In this type of embodiment, the support arm and its sub-support arm are used to form the mounting structure of the fixed frame. The two support arms and the fixed frame form a framework structure, providing more stable support for the passive part. In this application, the passive part is a stationary component relative to the support arm. It needs to withstand the force applied by the driving part, which not only requires its own structural strength, but also the strength of the connecting structure to which it is assembled.

[0016] In addition, the fixed frame is rotatably connected to the two support arms, respectively, and can adapt to the cutting system to keep the driven part always parallel to the ground when it moves up and down.

[0017] In some exemplary embodiments of the present application, the transverse guide structure also includes a first guide member and a second guide member arranged in sequence at least along the vertical direction, the two ends of the first guide member are rotatably connected to the two sub-support arms of a support arm, the two ends of the second guide member are rotatably connected to the two sub-support arms of another support arm, the cutting device is slidably connected to the first guide member and the second guide member at the same time, and / or the connecting frame is slidably connected to the first guide member and the second guide member at the same time.

[0018] In this embodiment, the transverse guide assembly utilizes a dual-layer layout of first and second guide members, each rotatably connected to the twin support arms of the support arm, creating a rigid frame-like guide system. This parallel, vertically arranged dual guide member structure not only provides bidirectional positional constraints for the cutting device and connecting frame, but also effectively enhances overall rigidity through the mechanical conductivity of the closed frame.

[0019] The dual-guide sliding connection design also enables precise control of the motion components' degrees of freedom. The cutting device and connecting frame engage the upper and lower guides simultaneously through a sliding interface, retaining only lateral translational freedom and completely limiting vertical swing and tilt. This two-way limiter mechanism ensures the cutting device maintains stability even at high speeds or over undulating terrain.

[0020] Furthermore, to optimize load distribution, the dual guides serve as the primary load-bearing structure, absorbing the gravitational loads of the cutting mechanism, connecting frame, and drive unit, allowing the driven and driving components to focus solely on lateral drive force transmission. This load-diversion design effectively reduces the vertical stress on the transmission components, preventing the impact of gravity loads on the meshing accuracy of the gear rack and pinion, and extending the service life of the transmission mechanism. Furthermore, the guides, through their rotatable connection and flexible coordination with the support arm, can adapt to the morphological changes caused by the vertical displacement of the cutting mechanism, further enhancing structural reliability under complex working conditions.

[0021] In some exemplary embodiments of the present application, the cutting device includes multiple first sliding seats and multiple second sliding seats arranged along the length direction of the transverse guide structure, each first sliding seat is slidably connected to the first guide member, and each second sliding seat is slidably connected to the second guide member.

[0022] In this embodiment, the cutting device forms a rigid support system through a distributed multi-sliding seat architecture and a double-layer guide. Multiple sets of first and second sliding seats, spaced along the length of the transverse guide structure, form span support nodes with the upper and lower layers of guides, respectively. This spatial matrix layout optimizes the mechanical span, reducing the load-bearing stress of individual sliding seats while increasing the overall load-bearing capacity, effectively maintaining the structural stability of the cutting device during high-speed translation.

[0023] Spaced sliding seats form a frame-like connection structure. A multi-point constraint mechanism converts the lateral movement of the cutting device into linear translation, completely eliminating vertical swing freedom. The precise fit between the sliding seat and the guide effectively improves lateral stability compared to traditional single-point connection structures.

[0024] Compared with traditional single-point connection, this distributed support design avoids structural damage due to stress concentration on the one hand, and achieves rapid assembly through modular design on the other hand, while reducing redundant structures and avoiding the processing and matching of large-sized parts. The connection system between the cutting device and the guide part has both high-strength load-bearing capacity and compact space layout, effectively balancing the requirements of mechanical performance and structural simplicity.

[0025] In some exemplary embodiments of the present application, the first guide member and the second guide member are both arranged parallel to the driven portion, and on a horizontal projection plane, the driven portion does not overlap with the first guide member and the second guide member.

[0026] In this type of embodiment, the first guide member, the second guide member, and the driven portion are arranged parallel to each other along the length of the transverse guide structure, forming a non-overlapping layered layout in horizontal projection. This three-dimensional spatial layout fundamentally avoids the risk of motion interference between the driving portion and the guide structure.

[0027] In some exemplary embodiments of the present application, the connecting frame is provided with a horizontally extending first guard plate, and the first guard plate is arranged opposite to the driven part to protect the driving part from one side of the driven part.

[0028] In this embodiment, the first guard plate and the driven part form a vertically symmetrical protective layout, with a bottom protective barrier constructed on the side of the driving part away from the rack. This guard plate extends horizontally along the transverse guide structure and completely covers the area below the driving part. Together with the first guard plates on either side, it forms a "U-shaped + horizontal" three-dimensional protective space, fully protecting the driving part. This three-dimensional protective structure effectively blocks splashing dirt, dewdrops, and grass debris generated during cutting, preventing the transmission connection between the driving part and the driven part from failing due to bottom accumulation.

[0029] In some exemplary embodiments of the present application, the first guard plate is fixedly connected to a side of at least one second sliding seat away from the first sliding seat.

[0030] In this type of embodiment, the rigid connection scheme between the first guard plate and the second sliding seat constructs a multi-point support system, increases the connection position between the second sliding seat and the connecting frame, increases the bonding degree between the connecting frame and the cutting device, and at the same time forms protection for the bottom of the second guide member.

[0031] In some exemplary embodiments of the present application, the connecting frame includes a horizontally extending connecting plate, and the connecting plate is fixedly connected to a side of at least one first sliding seat away from the second sliding seat.

[0032] In this embodiment, the horizontal connecting plate of the connecting frame and the first sliding seat form a rigid connection node, creating a multi-dimensional support system. This design transforms the single-point connection between the sliding seat and the connecting frame into a span-support layout, effectively increasing the structural rigidity of the connection area, effectively dissipating the centrifugal loads and lateral impacts generated by the cutting device during high-speed operation, and significantly enhancing the deformation resistance under complex working conditions.

[0033] Furthermore, when combined with the rigid connection scheme of the first guard plate, the connecting plate, first sliding seat, cutting device, second sliding seat, first guard plate, and connecting frame together form a closed-loop frame structure. This frame, through the sliding seats at the upper and lower ends and the double-layer guide members, creates a bidirectional constraint, converting the lateral movement of the cutting device and position adjustment device into strict linear translation, completely limiting vertical swing and tilt freedom. This circumferential limit design not only prevents horizontal position deviation during high-speed lateral movement, but also ensures that the cutting device maintains precise lateral positioning accuracy despite bumps in the lawn or sudden load changes.

[0034] Furthermore, the frame structure's symmetrical load transfer path design evenly distributes the drive unit's driving force and the cutting device's workload to the double-layer guides, reducing the load-bearing pressure on a single slide. This structural design, combined with the rigid support of the guides, provides the cutting system with a high-strength and high-stability motion platform, enhancing structural reliability during long-term, high-frequency operations.

[0035] In some exemplary embodiments of the present application, the driving unit includes a driving motor, and the connecting frame is provided with a vertical partition. The output end of the driving motor passes through the vertical partition to connect to the driving part, and the vertical partition separates the driving motor and the driven part.

[0036] In this type of embodiment, the vertical partitions of the connecting frame construct a physical isolation barrier between the motor and the transmission mechanism. On the one hand, it can prevent grass clippings and the like located at the meshing position between the driven part and the driving part from entering the motor. On the other hand, the setting of the vertical partitions also forms electrical isolation to avoid leakage and other situations.

[0037] In some exemplary embodiments of the present application, the vertical partition is further provided with a plurality of second guard plates extending in a direction away from the driven part, and the second guard plates and the vertical partition form an accommodating space for the drive motor.

[0038] In this type of embodiment, the extended layout of the second guard plate and the vertical partition form a single-sided open protective structure, which is suitable for the installation of the drive unit. At the same time, protective facades are constructed on the top and both sides of the drive unit, and cooperate with the first guard plate at the bottom and the first side guard plate to form a five-sided protective space for the drive unit, which can prevent flying grass clippings, mud and water from invading the drive unit and play a good protective role.

[0039] In some exemplary embodiments of the present application, a structural beam is provided between the two fixed frames, the structural beam is provided along the length direction of the transverse guide structure, and the driven part is fixedly connected to the structural beam, or the driven part is integrally formed with the structural beam.

[0040] In this type of embodiment, the structural beam is arranged along the length direction of the transverse guide structure, forming an "I"-shaped frame with the fixed frame, and cooperating with the two guide members to form a stable frame structure. Such an arrangement provides an assembly position or setting position for the driven part.

[0041] Through the rigid connection between the structural beam and the fixed frame, the gravity load of the cutting device, the connecting frame and the driving unit is directly transmitted to the support arms on both sides, so that the driven part only bears the horizontal driving force and the vertical load is completely unloaded.

[0042] When the driven part is a rack, the above arrangement can avoid the influence of rack deformation caused by gravity on the gear meshing accuracy, and effectively extend the service life of the transmission component.

[0043] In some exemplary embodiments of the present application, a mounting plate extends horizontally along the top or bottom surface of the structural beam away from the cutting device, and the driven part is fixedly connected to the mounting plate, or the driven part is fixedly connected to the side surface of the structural beam and the mounting plate.

[0044] In this type of embodiment, the arrangement of the assembly plate allows the structural beam to provide a horizontally offset installation position. This arrangement, on the one hand, allows the driven part to be installed at a position offset from the structural beam, thereby avoiding the transmission of gravity load to the driven part. On the other hand, it allows the driven part to deviate from the vertical plane where the structural beam is located, thereby avoiding the problem of interference with the driving part due to insufficient vertical space caused by the arrangement of the two guide members.

[0045] In addition, in the embodiment in which the driven part is fixedly connected to the side of the structural beam and the assembly plate, due to the combined installation of the two positions, the connection positions of the top and side of the driven part are increased, the connection area is larger, the force dispersion effect is good, and it is not easy for the structural form of the driven part to be deformed due to force, thereby effectively extending the service life of the driven part.

[0046] In some exemplary embodiments of the present application, the first guide member and / or the second guide member are both sliding guide rails.

[0047] In this type of embodiment, the first guide member and the second guide member are in the form of sliding guide rails to construct a high-precision linear motion reference, thereby improving the guiding stiffness and motion smoothness of the system.

[0048] In some exemplary embodiments of the present application, the driven part is a chain structure, the driving part is a sprocket, the sprocket is engaged with the chain structure, and the driving unit drives the sprocket to rotate so that the sprocket is displaced along the length direction of the chain.

[0049] In this type of embodiment, the chain and sprocket drive creates a flexible transmission system suitable for long-stroke operations. The fixed chain structure and the drive sprocket form a transmission pair through the meshing gap, and the drive unit converts the rotation of the sprocket into linear displacement along the length of the chain.

[0050] Chain sprocket drives require low installation precision and low assembly requirements, yet they are resistant to complex operating conditions. When the mower body vibrates or the terrain undulates, the chain's flexibility effectively absorbs impact loads, reducing stress concentration in the rigid transmission pair. Chain sprocket drives also support quick assembly and disassembly, and chain tension adjustment can be accomplished with simple tools without the need for precision instruments, significantly reducing on-site maintenance. Furthermore, compared to gear and rack transmission structures, chains are lightweight and offer spatial flexibility, improving overall machine weight and design flexibility while maintaining transmission efficiency.

[0051] In some exemplary embodiments of the present application, the driven part is a belt structure, the driving part is a friction wheel, the driven part is the friction surface of the belt structure, the friction wheel is squeezed and fitted with the friction surface of the belt structure, and the driving unit drives the friction wheel to rotate so that the friction wheel is displaced along the length direction of the belt structure.

[0052] In this type of embodiment, the belt friction transmission scheme adopts a fixed belt structure in combination with a friction wheel to achieve linear displacement drive through extrusion contact. Its flexible transmission characteristics can use the elastic deformation of the belt to absorb high-frequency vibrations and sudden terrain shocks, reducing stress concentration and fatigue problems in the transmission components; the low-noise, lubrication-free design uses material optimization to achieve clean transmission, avoid foreign matter jamming, and extend the maintenance cycle; the lightweight layout combined with the bendable characteristics of the belt reduces the chassis load and improves installation flexibility; in terms of cost, standardized components reduce procurement and maintenance costs, and cooperate with the automatic tension compensation device to ensure long-term operational stability; it has strong adaptability to working conditions, stable performance in high humidity and low temperature environments, and the design without meshing gap ensures a certain degree of accuracy. It is suitable for small and medium-sized lawn mowers and other household or commercial equipment that focus on noise control, maintenance convenience and cost-effectiveness, and balances transmission reliability, environmental adaptability and manufacturing economy through friction pair innovation.

[0053] In some exemplary embodiments of the present application, the driven part includes a slide rail structure and an driven block extending outward on the radial side of the slide rail structure, the driving unit is a linear driving unit, and the driving unit is slidably connected to the slide rail structure, the driving part is fixedly connected to the driven block, the driving part is the output end of the driving unit, or the driving part is arranged at the output end of the driving unit.

[0054] In this type of embodiment, the linear drive slide transmission scheme realizes linear displacement through the rigid connection between the slide structure and the linear drive unit. Its design without intermediate transmission links can improve the energy transfer efficiency, can stably bear lateral loads and adapt to dusty and high-humidity environments, has high wear resistance and life, and has a compact and lightweight integrated structure, which saves chassis space and is convenient for rapid modular replacement, reducing maintenance time and chassis load; the lubrication-free and maintenance-free characteristics combined with the wide temperature range adaptability design significantly reduce maintenance workload and ensure stable operation under different working conditions.

[0055] In some exemplary embodiments of the present application, the driving unit is one of a linear motor, a pneumatic element or a hydraulic element.

[0056] In this type of embodiment, linear motors, pneumatic components and hydraulic components all have the advantages of high control accuracy, strong technical maturity and operational reliability. They are adapted to the design of rigid slide rails and can meet the strict requirements of lawn mowers for control accuracy and reliability in different scenarios.

[0057] In some exemplary embodiments of the present application, there is a receiving portion between the two sub-support arms, and the cutting device is disposed in the receiving portion.

[0058] In this type of embodiment, a portion of the cutting device can be inserted into the accommodating portion, effectively utilizing the space between the two sub-support arms, which is beneficial to improving the compactness of the structure, reducing the overall volume, and occupying less space.

[0059] In some exemplary embodiments of the present application, the cutting device includes a drive, a cutter disc cover and a cutter disc, the cutter disc includes a blade, the cutter disc cover is connected to the drive, the cutter disc is arranged below the cutter disc cover, the cutter disc is connected to the output shaft of the drive, and the drive is passed through the accommodating portion.

[0060] In this embodiment, the cutterhead cover protects the cutterhead, while the driver provides rotational energy for the blades on the cutterhead, thereby achieving rotation of the cutterhead. The support arm includes a receiving portion for the driver to pass through. This not only protects the driver but also utilizes the space provided by the support arm, resulting in a compact and reliable internal structure.

[0061] According to a second aspect of the present application, an intelligent lawn mower is provided, which includes the cutting system of the above embodiment.

[0062] In this type of embodiment, the cutting system of the intelligent lawn mower includes: a cutting device and a position adjustment device. Through the operation of the drive unit, efficient and precise adjustment of the lateral position of the cutting device can be achieved. The drive unit is mounted on the connecting frame and slidingly cooperates with the lateral guide structure. Its driving part directly acts on the driven part. Through the displacement of the driving part relative to the driven part, the connecting frame is driven to slide laterally relative to the lateral guide structure, so that the cutting device completes the position adjustment synchronously. Compared with the traditional lever mechanical structure, this design effectively improves the maximum stroke and control accuracy of the lateral displacement, and the controllable characteristics of the drive unit can achieve rapid control and response, which can not only meet the operational requirements of the lawn mower for large-scale lateral cutting in complex terrain, but also ensure the position control accuracy during fine operations.

[0063] According to a third aspect of the present application, an intelligent lawn mower is provided, comprising: a body, a cutting system, and a position adjustment device. The cutting system comprises: a cutting device and a position adjustment device; the position adjustment device comprises a support frame, a transverse guide structure, a drive unit, and a connecting frame; the transverse guide structure is fixed to the support frame, the cutting device and the drive unit are respectively arranged on the connecting frame, and the connecting frame is slidably connected to the transverse guide structure, the drive unit comprises a driving portion, and the transverse guide structure comprises a driven portion, and the driving portion is connected to the driven portion; wherein the drive unit drives the driving portion to move relative to the driven portion to adjust the sliding of the connecting frame relative to the transverse guide structure, so that the cutting device performs a movement action in the longitudinal direction of the transverse guide structure.

[0064] In this type of embodiment, the intelligent lawn mower achieves efficient and precise adjustment of the lateral position of the cutting device through the operation of the drive unit. The drive unit is mounted on the connecting frame and slidably engages the lateral guide structure. Its driving portion directly acts on the driven portion. The displacement of the driving portion relative to the driven portion drives the connecting frame to slide laterally relative to the lateral guide structure, allowing the cutting device to synchronously adjust its position. Compared to traditional lever mechanisms, this design effectively improves the maximum lateral displacement and control accuracy. The controllable nature of the drive unit enables rapid control and response, meeting the lawn mower's operational needs for large-scale lateral cutting in complex terrain while ensuring position control accuracy during delicate operations.

[0065] In terms of structural design, the direct coupling of the driving and driven components eliminates the need for an intermediate transmission mechanism, fundamentally avoiding the bulky cutting mechanism caused by an excessively long transmission chain and making the entire cutting system's horizontal layout more compact. Furthermore, because the drive unit moves synchronously with the cutting mechanism, the elimination of redundant transmission components significantly reduces the load mass of the moving assembly. This allows for the use of a drive unit with lower power requirements and a smaller size, improving system energy efficiency while optimizing the mower's spatial layout.

[0066] The support frame also serves as a foundational structure, providing a rigid mounting base for the lateral guide assembly, ensuring precise spatial positioning of the cutting mechanism and position adjustment mechanism during operation. When integrated into the mower, the support frame provides a secure connection to the machine body. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.

[0068] Figure 1 A schematic diagram of the three-dimensional structure of a cutting system provided in an exemplary embodiment of the present application is shown.

[0069] Figure 2 A schematic diagram of the internal structure of a cutting system provided in an exemplary embodiment of the present application is shown in a three-dimensional state.

[0070] Figure 3 A cross-sectional schematic diagram of a cutting system provided in an exemplary embodiment of the present application is shown.

[0071] Figure 4 A schematic diagram of the three-dimensional structure of an intelligent lawn mower provided in an exemplary embodiment of the present application is shown.

[0072] The above drawings include the following reference numerals:

[0073] 10. Cutting device; 11. First sliding seat; 12. Second sliding seat; 13. Driver; 14. Cutter cover; 20. Position adjustment device; 21. Support frame; 211. Support arm; 2111. Sub-support arm; 22. Transverse guide structure; 221. Driven part; 223. First guide member; 224. Second guide member; 23. Drive unit; 231. Drive part; 232. Drive motor; 2321. Output end; 24. Connecting frame; 241. First guard plate; 242. Connecting plate; 243. Vertical partition; 244. Second guard plate; 25. Fixed frame; 26. Structural beam; 261. Assembly plate; 30. Fuselage. DETAILED DESCRIPTION

[0074] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0075] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, for the purposes of describing the embodiments of the present application herein.

[0076] In this application, the terms "upper," "lower," "inner," and the like indicate positions or locations based on those shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0077] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0078] Furthermore, the terms "disposed," "provided with," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0079] Additionally, the term "plurality" shall mean two or more.

[0080] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present application can be combined with each other. The following is a detailed description of the various parts of a cutting system and an intelligent lawn mower provided by the embodiments of the present application in conjunction with the accompanying drawings:

[0081] According to the first aspect of this application, see Figures 1 to 3As shown, in an exemplary embodiment of the present application, a cutting system is provided for a lawn mower. The cutting system includes: a cutting device 10 and a position adjustment device 20. The position adjustment device 20 includes a support frame 21, a transverse guide structure 22, a drive unit 23, a connecting frame 24, a fixed frame 25 and a structural beam 26. The transverse guide structure 22 is fixed to the support frame 21, and the cutting device 10 and the drive unit 23 are respectively arranged on the connecting frame 24. The connecting frame 24 is slidably connected to the transverse guide structure 22. The drive unit 23 includes a driving part 231, and the transverse guide structure 22 includes a passive part 221. The drive unit 23 drives the driving part 231 to move relative to the passive part 221 to adjust the sliding of the connecting frame 24 relative to the transverse guide structure 22, so that the cutting device 10 performs a movement action in the longitudinal direction of the transverse guide structure 22.

[0082] In the above arrangement, the operation of the drive unit 23 enables efficient and precise adjustment of the lateral position of the cutting device 10. The drive unit 23 is mounted on the connecting frame 24 and slidably engages with the lateral guide structure 22. Its driving portion 231 directly acts on the driven portion 221. The relative displacement of the driving portion 231 and the driven portion 221 drives the connecting frame 24 to slide laterally relative to the lateral guide structure 22, thereby synchronously adjusting the position of the cutting device 10.

[0083] The support frame 21 serves as a base structure and provides a rigid mounting base for the lateral guide structure 22, ensuring the spatial positioning accuracy of the cutting device 10 and the position adjustment mechanism during operation. When integrated into the lawn mower, the support frame 21 can be firmly connected to the machine body 30.

[0084] It should be noted that lawn mowers have certain safety requirements for the lateral space occupied by the cutting device 10. The lateral cutting span cannot be achieved simply by increasing the lateral width of the cutterhead. Therefore, lateral displacement of the cutting device 10 is essential. Furthermore, increasing the cutting width through lateral displacement can reduce the width of the cutterhead, thus reducing the size of the cutterhead. This allows for a lower-powered driver 13 to be used to drive the cutterhead, thus reducing costs.

[0085] See also Figures 1 to 3 As shown, in some exemplary embodiments of the present application, the drive unit 23 and the cutting device 10 are located on opposite sides of the driven portion 221. The drive unit 23, the driven portion 221, and the cutting device 10 are arranged sequentially along the forward direction of the lawn mower. The drive unit 23 and the cutting device 10 are arranged on either side of the driven portion 221, and a symmetrical load distribution is achieved through the connecting frame 24, achieving dynamic force balance through the mechanical coupling effect.

[0086] Optionally, the cutting device 10 is arranged closer to the middle of the lawn mower, and the drive unit 23 is arranged closer to the rear end of the lawn mower, so that the position of the cutting device 10 can be better controlled for the mowing path.

[0087] It should be noted that the drive unit 23 , the driven portion 221 and the cutting device 10 are arranged in a substantially horizontal direction.

[0088] In some optional embodiments, the driven part 221 needs to maintain high precision and rigidity, so it can be made of metal materials, such as aluminum alloy materials, which can meet the requirements of precision and rigidity while also taking into account the requirements of lightweight; another example is magnesium alloy materials, and through hardening treatment to increase its structural strength, its weight is lighter than that of aluminum alloy materials of the same volume.

[0089] See also Figure 2 As shown, in some exemplary embodiments of the present application, the driven portion 221 is a rack, and the driving portion 231 is a gear. The gear meshes with the rack, and the drive unit 23 drives the gear to rotate, causing the gear to move along the length of the rack. The rack supported by the driven portion 221 and the driving gear form a rack-and-pinion transmission mechanism, whose linear motion characteristics are highly compatible with the lateral adjustment requirements of the cutting device 10.

[0090] In some optional embodiments, a combination of spur gears and spur racks can be used. It has a simple structure, low processing cost, no axial force component during transmission, no need to assemble thrust bearings, compact and reliable structure, easy installation and debugging, only meshing is required, and adjustment is simple.

[0091] In some optional embodiments, a combination of helical gears and spur racks can be selected, which has the advantages of smooth transmission and low noise, can reduce the amount of composite noise when the lawn mower is in use, and has a higher load-bearing capacity to meet the load displacement of the cutting system, the drive unit 23 and the connecting frame 24, and has higher accuracy and stronger controllability than the combination of spur gears and spur racks.

[0092] See also Figure 3 As shown, in some exemplary embodiments of the present application, the rack and gear coincide with each other in horizontal projection. The drive gear is arranged along the vertical meshing space of the rack, utilizing the vertical gap between the connecting frame 24 and the transverse guide structure 22 to shift the space occupied by the transmission assembly from the horizontal dimension to the vertical dimension.

[0093] In some optional embodiments, the width of the rack is substantially equal to the width of the gear, which facilitates assembly and positioning.

[0094] In some optional embodiments, the width of the rack is smaller than the width of the gear, and the midpoint along the gear axis and the center position of the rack width direction are located in the same plane. This increases the thickness of the gear and fully engages, which can ensure the stability of the transmission and protect the structural strength of the gear, which is conducive to improving the service life.

[0095] See also Figures 1 to 3 As shown, in some exemplary embodiments of the present application, the support frame 21 includes at least two support arms 211 spaced apart in the vertical direction, the support arm 211 includes two sub-support arms 2111 spaced apart along the length direction of the transverse guide structure 22, a fixed frame body 25 is provided between the two sub-support arms 2111 spaced apart in the vertical direction, and the fixed frame body 25 is rotatably connected to the two sub-support arms 2111 spaced apart in the vertical direction, and the rotation axis of the fixed frame body 25 relative to any sub-support arm 2111 is parallel to the length direction of the transverse guide structure 22, and the driven portion 221 is fixed between the two fixed frame bodies 25.

[0096] The support arm 211 and its sub-support arm 2111 are used to form the mounting structure of the fixed frame 25. The two support arms 211 and the fixed frame 25 form a frame structure, providing more stable support for the passive part 221. In this application, the passive part 221 is a stationary component relative to the support arm 211. It needs to withstand the force applied by the driving part 231, which not only requires its own structural strength, but also the strength of the connecting structure to which it is assembled.

[0097] In addition, the fixed frame 25 is rotatably connected to the two support arms 211 respectively, which can adapt to the cutting system to keep the driven part 221 always parallel to the ground when it moves up and down.

[0098] In some optional embodiments, the two support arms 211 always remain in a parallel state, and a rotating device is provided at one end of the support arm 211 away from the fixed frame 25. The other ends of the two support arms 211 can be raised and lowered by rotating the two support arms 211, and the rotatable connection of the fixed frame 25 keeps the other ends of the two support arms 211 always in a vertical direction, providing freedom of vertical displacement of the cutting device 10 and the driving unit 23.

[0099] See also Figures 1 to 3As shown, in some exemplary embodiments of the present application, the transverse guide structure 22 also includes a first guide member 223 and a second guide member 224 arranged in sequence at least along the vertical direction, the two ends of the first guide member 223 are rotatably connected to the two sub-support arms 2111 of a support arm 211, the two ends of the second guide member 224 are rotatably connected to the two sub-support arms 2111 of another support arm 211, the cutting device 10 is slidably connected to the first guide member 223 and the second guide member 224 at the same time, and / or the connecting frame 24 is slidably connected to the first guide member 223 and the second guide member 224 at the same time.

[0100] The transverse guide assembly utilizes a double-layered layout of first and second guide members 223 and 224, each rotatably connected to the twin support arms 2111 of the support arm 211 at both ends, forming a rigid frame-type guide system. This parallel, vertically arranged dual guide member structure not only provides bidirectional positional constraints for the cutting device 10 and the connecting frame 24, but also effectively enhances overall rigidity through the mechanical conductivity of the closed frame.

[0101] The upper and lower guides work together to retain only lateral translational freedom, completely limiting vertical swing and flipping. Regarding load distribution, the dual guides serve as the primary load-bearing structure, shouldering the gravitational load of the cutting device 10, connecting frame 24, and drive unit 23, allowing the driven portion 221 and driving portion 231 to focus solely on transmitting lateral driving force.

[0102] In some optional embodiments, the first guide member 223 and / or the second guide member 224 is a rod-shaped structure with a circular, square or triangular cross-section. The corresponding cross-sectional shape can be selected according to different load-bearing requirements.

[0103] See also Figures 1 to 3 As shown, in some exemplary embodiments of the present application, the cutting device 10 includes a plurality of first sliding seats 11 and a plurality of second sliding seats 12 arranged along the length direction of the transverse guide structure 22, each first sliding seat 11 is slidably connected to the first guide member 223, and each second sliding seat 12 is slidably connected to the second guide member 224.

[0104] Multiple groups of first sliding seats 11 and second sliding seats 12 are arranged at intervals along the length direction of the transverse guide structure 22, and respectively form span support nodes with the upper and lower guide members. This spatial matrix layout reduces the bearing stress of a single sliding seat through mechanical span optimization, while increasing the overall bearing capacity, effectively maintaining the structural stability of the cutting device 10 during high-speed translation.

[0105] In some optional embodiments, the first guide member 223 and the second guide member 224 are rod-shaped structures with circular cross-sections. The first sliding seat 11 and the second sliding seat 12 are provided with corresponding circular through-holes. The first sliding seat 11 and the second sliding seat 12 are respectively mounted on the first guide member 223 and the second guide member 224. This arrangement allows for precise positioning during assembly, and the first sliding seat 11 or the second sliding seat 12 can rotate after assembly, facilitating connection with the driver 13. After connection, they can be mutually restrained to form a stable system.

[0106] In some optional embodiments, the first sliding seat 11 and the second sliding seat 12 are fixedly connected.

[0107] In some optional embodiments, the first sliding seat 11 and the second sliding seat 12 are an integrally formed structure.

[0108] In some optional embodiments, the first guide member 223 and the second guide member 224 both include sliding grooves, and the first sliding seat 11 and the second sliding seat 12 are correspondingly provided with sliding blocks, which are slidably disposed in the sliding grooves.

[0109] Furthermore, the sliding grooves of the first guide member 223 and the second guide member 224 are arranged at the upper and lower sides respectively, so that the first sliding seat 11 and the second sliding seat 12 can clamp the two guide members, and the structure is more stable and reliable.

[0110] See also Figure 2 As shown, in some exemplary embodiments of the present application, the first guide member 223 and the second guide member 224 are both arranged parallel to the driven portion 221, and in horizontal projection, the driven portion 221 does not overlap with either the first guide member 223 or the second guide member 224. The first guide member 223, the second guide member 224, and the driven portion 221 are arranged parallel to each other along the length of the transverse guide structure 22, forming a non-overlapping layered layout in horizontal projection. This three-dimensional spatial layout fundamentally avoids the risk of motion interference between the driving portion 231 and the transverse guide structure 22.

[0111] In some optional embodiments, the driven portion 221 may be located between the first guide member 223 and the second guide member 224 , and between the first guide member 223 and the cutting device 10 .

[0112] In some optional embodiments, the driven portion 221 may be located between the first guide member 223 and the second guide member 224 , and between the first guide member 223 and the connecting frame 24 .

[0113] See also Figures 1 to 3As shown, in some exemplary embodiments of the present application, the connecting frame 24 is equipped with a horizontally extending first guard plate 241. The first guard plate 241 is positioned opposite the driven portion 221 to protect the side of the driving portion 231 away from the driven portion 221. The first guard plate 241 and the driven portion 221 form a vertically symmetrical protective layout, forming a bottom protective barrier on the side of the driving portion 231 away from the rack. This guard plate extends horizontally along the transverse guide structure 22 and completely covers the area below the driving portion 231. Together with the first sliding seats 11 on either side, it forms a "U-shaped + horizontal" three-dimensional protective space, fully protecting the driving portion 231. This three-dimensional protective structure effectively blocks splashing dirt, dewdrops, and grass debris generated during cutting, preventing the transmission connection between the driving portion 231 and the driven portion 221 from failure due to bottom accumulation.

[0114] In some optional embodiments, the setting direction of the first guard plate 241 is consistent with the forward direction of the lawn mower.

[0115] See also Figures 1 to 3 As shown, in some exemplary embodiments of the present application, the first guard plate 241 is fixedly connected to a side of at least one second sliding seat 12 away from the first sliding seat 11. The rigid connection between the first guard plate 241 and the second sliding seat 12 constructs a multi-point support system, increases the connection position between the second sliding seat 12 and the connecting frame 24, increases the degree of integration between the connecting frame 24 and the cutting device 10, and forms protection for the bottom of the second guide member 224.

[0116] In some optional embodiments, the first guard plate 241 is connected to the second sliding seat 12 using fasteners.

[0117] In some optional embodiments, the first guard plate 241 is connected to the second sliding seat 12 using a snap-fit ​​structure.

[0118] In some optional embodiments, the first guard plate 241 is connected to the second sliding seat 12 using a snap-fit ​​structure.

[0119] See also Figure 1 and Figure 3 As shown, in some exemplary embodiments of the present application, the connecting frame 24 includes a horizontally extending connecting plate 242 that is fixedly connected to a side of at least one first sliding seat 11 away from the second sliding seat 12. The horizontal connecting plate 242 of the connecting frame 24 forms a rigid connection node with the first sliding seat 11, creating a multi-dimensional support system. This design transforms the single-point connection between the sliding seat and the connecting frame 24 into a span-support layout, effectively increasing the structural rigidity of the connection area, effectively dispersing the centrifugal loads and lateral impacts generated by the cutting device 10 during high-speed operation, and significantly enhancing the deformation resistance under complex working conditions.

[0120] When combined with the rigid connection scheme of the first guard plate 241, the connecting plate 242, the first sliding seat 11, the cutting device 10, the second sliding seat 12, the first guard plate 241, and the vertical partition 243 together form a closed-loop frame structure that surrounds the radially outer side of the transverse guide structure 22. This frame forms a bidirectional constraint through the sliding seats at the upper and lower ends and the double-layer guide members, converting the lateral movement of the cutting device 10 and the position adjustment device 20 into strict linear translation, completely limiting the vertical swing and flipping degrees of freedom. This circumferential limit design prevents horizontal position deviation during high-speed lateral movement, while also ensuring that the cutting device 10 maintains precise lateral positioning accuracy even when the lawn is bumpy or the load changes suddenly.

[0121] In addition, the upper and lower symmetrical load transmission path design of the frame structure evenly distributes the driving force of the drive unit 23 and the working load of the cutting device 10 to the double-layer guide parts, thereby reducing the bearing pressure of a single sliding seat. Such a structural design, combined with the rigid support of the guide parts, provides the cutting system with a motion platform with both high strength and high stability, thereby improving the structural reliability in long-term and high-frequency operations.

[0122] See also Figure 1 and Figure 3 As shown, in some exemplary embodiments of the present application, the drive unit 23 includes a drive motor 232, and the connecting frame 24 is provided with a vertical partition 243. The output end 2321 of the drive motor 232 passes through the vertical partition 243 to connect to the driving part 231, and the vertical partition 243 separates the drive motor 232 from the driven part 221. The vertical partition 243 of the connecting frame 24 creates a physical isolation barrier between the motor and the transmission mechanism. On the one hand, it can prevent grass clippings and the like located at the meshing position between the driven part 221 and the driving part 231 from entering the motor. On the other hand, the provision of the vertical partition 243 also provides electrical isolation to prevent leakage and other problems.

[0123] In some alternative embodiments, the drive motor 232 is a servo motor.

[0124] See also Figure 1 and Figure 3 As shown, in some exemplary embodiments of the present application, the vertical partitions 243 are further provided with a plurality of second guard plates 244 extending in a direction away from the driven portion 221. The second guard plates 244 and the vertical partitions 243 enclose a space for accommodating the drive motor 232. The extended layout of the second guard plates 244 and the vertical partitions 243 form a single-sided open protective structure suitable for the installation of the drive unit 23. At the same time, protective facades are formed in the four directions of the drive unit 23, namely the top, bottom, left and right. Together with the first guard plate 241 at the bottom and the first lateral sliding seat 11, they form a protective cover for the drive unit 23, preventing flying grass clippings, muddy water, etc. from intruding into the drive unit 23, providing excellent protection.

[0125] See also Figure 2 and Figure 3 As shown, in some exemplary embodiments of the present application, a structural beam 26 is disposed between the two fixed frames 25. The structural beam 26 extends along the length of the transverse guide structure 22, and the driven portion 221 is fixedly connected to the structural beam 26. The structural beam 26 extends through the length of the transverse guide structure 22, forming an "I"-shaped frame with the fixed frame 25. Together with the two guide members, this structure forms a stable frame structure. This arrangement provides an assembly or installation location for the driven portion 221. Through the rigid connection between the structural beam 26 and the fixed frame 25, the gravitational load of the cutting device 10, the connecting frame 24, and the drive unit 23 is directly transmitted to the support arms 211 on both sides, so that the driven portion 221 only bears the horizontal driving force and is completely unloaded from the vertical load.

[0126] In some optional embodiments, when the driven portion 221 is a rack, the above arrangement can avoid the influence of rack deformation caused by gravity on the gear meshing accuracy, thereby effectively extending the service life of the transmission component.

[0127] In some exemplary embodiments of the present application, the driven portion 221 is integrally formed with the structural beam 26 .

[0128] See also Figure 1 and Figure 3 As shown, in some exemplary embodiments of the present application, a mounting plate 261 is horizontally extended from the top or bottom surface of the structural beam 26 along a side away from the cutting device 10, and the driven portion 221 is fixedly connected to the mounting plate 261. The provision of the mounting plate 261 provides the structural beam 26 with a horizontally offset mounting position. This provision allows the driven portion 221 to be installed offset from the position of the structural beam 26, thereby preventing the transmission of gravity load to the driven portion 221. On the other hand, the driven portion 221 can be offset from the vertical plane of the structural beam 26, thereby avoiding the problem of interference with the driving portion 231 caused by insufficient vertical space due to the provision of the two guide members.

[0129] See also Figure 1 and Figure 3 As shown, in some exemplary embodiments of the present application, the driven part 221 is fixedly connected to the side of the structural beam 26 and the assembly plate 261. Due to the combined installation of the two positions, the connection positions of the top and side of the driven part 221 are increased, the connection area is larger, the force dispersion effect is good, and the structural form of the driven part 221 is not easily deformed by the force, thereby effectively extending the service life of the driven part 221.

[0130] In some exemplary embodiments of the present application, the first guide member 223 and / or the second guide member 224 are both sliding guide rails. The first guide member 223 and the second guide member 224 are in the form of sliding guide rails, which construct a high-precision linear motion reference and improve the guiding stiffness and motion smoothness of the system.

[0131] In some exemplary embodiments of the present application, the driven part 221 is a chain structure, the driving part 231 is a sprocket, the sprocket is engaged with the chain structure, and the driving unit 23 drives the sprocket to rotate so that the sprocket is displaced along the length direction of the chain.

[0132] The chain and sprocket drive creates a flexible transmission system suitable for long-distance operations. The fixed chain structure and the drive sprocket form a transmission pair through the meshing gap. The drive unit 23 converts the rotation of the sprocket into linear displacement along the length of the chain.

[0133] Chain-sprocket drives require low installation precision and low assembly requirements, yet they are highly resistant to complex operating conditions. When the mower body vibrates or the terrain undulates, the chain's flexibility effectively absorbs impact loads, reducing stress concentration in the rigid transmission pair. Chain-sprocket drives also allow for quick assembly and disassembly, and chain tension adjustment can be performed with simple tools without the need for precision instruments, significantly simplifying on-site maintenance. Furthermore, compared to gear and rack transmission structures, chains are lightweight and offer greater spatial flexibility, improving overall machine weight and design flexibility while maintaining transmission efficiency.

[0134] In some exemplary embodiments of the present application, the driven part 221 is a belt structure, the driving part 231 is a friction wheel, the friction wheel is squeezed and fitted with the friction surface of the belt structure, and the driving unit 23 drives the friction wheel to rotate so that the friction wheel is displaced along the length direction of the belt structure.

[0135] The belt friction transmission solution adopts a fixed belt structure in combination with a friction wheel, and realizes linear displacement drive through extrusion contact. Its flexible transmission characteristics can use the elastic deformation of the belt to absorb high-frequency vibrations and sudden terrain shocks, reducing stress concentration and fatigue problems in transmission components; the low-noise, lubrication-free design uses material optimization to achieve clean transmission, avoid foreign matter jamming, and extend maintenance cycles; the lightweight layout combined with the bendable characteristics of the belt reduces the chassis load and improves installation flexibility; in terms of cost, standardized components reduce procurement and maintenance costs, and cooperate with the automatic tensioning force compensation device to ensure long-term operational stability; it has strong adaptability to working conditions, stable performance in high humidity and low temperature environments, and the design without meshing gap ensures a certain degree of accuracy. It is suitable for small and medium-sized lawn mowers and other household or commercial equipment that focuses on noise control, maintenance convenience and cost-effectiveness. The innovation of friction pairs balances transmission reliability, environmental adaptability and manufacturing economy.

[0136] In some exemplary embodiments of the present application, the driven portion 221 includes a slide rail structure and an driven block extending outward on the radial side of the slide rail structure. The driving unit 23 is a linear driving unit, and the driving unit 23 is slidably connected to the slide rail structure. The driving portion 231 is fixedly connected to the driven block. The driving portion 231 is the output end of the driving unit 23, or the driving portion 231 is arranged at the output end of the driving unit 23.

[0137] The linear drive slide transmission solution achieves linear displacement through a rigid connection between the slide structure and the linear drive unit. Its design without intermediate transmission links can improve energy transfer efficiency, stably bear lateral loads and adapt to dusty and high-humidity environments. It has a high wear resistance and lifespan, a compact and lightweight integrated structure, saves chassis space and facilitates rapid modular replacement, reducing maintenance time and chassis load; the lubrication-free and maintenance-free characteristics combined with a wide temperature range adaptability design significantly reduce maintenance workload and ensure stable operation under different working conditions.

[0138] The drive unit 231 may be the output end of a linear drive unit, such as the end of a push rod of a linear motor. Alternatively, the drive unit may be a transmission structure disposed at the output end of the drive unit 23, with the transmission structure and the driven block being detachably fixedly connected, such as by a structure such as a block and a slot, a fastener and a fastening hole, etc., which enables the two to be fixed together to transmit the output of the linear drive unit to the driven block and drive the cutting device, etc.

[0139] In some exemplary embodiments of the present application, the driving unit 23 is a linear motor, a pneumatic element, or a hydraulic element.

[0140] Linear motors, pneumatic components and hydraulic components all have the advantages of high control precision, strong technical maturity and operational reliability. They are adapted to the design of rigid slide rails and can meet the strict requirements of lawn mowers for control precision and reliability in different scenarios.

[0141] In some exemplary embodiments of the present application, there is an accommodating portion between the two sub-support arms 2111, and the cutting device 10 is disposed in the accommodating portion.

[0142] A portion of the cutting device 10 can be passed through the accommodating portion, effectively utilizing the space between the two sub-support arms 2111, which is beneficial to improving the compactness of the structure, reducing the overall volume, and occupying less space.

[0143] See also Figure 1 and Figure 4 As shown, in some exemplary embodiments of the present application, the cutting device 10 includes a driver 13, a cutter disc cover 14 and a cutter disc, the cutter disc includes a blade, the cutter disc cover 14 is connected to the driver 13, the cutter disc is arranged below the cutter disc cover 14, the cutter disc is connected to the output shaft of the driver 13, and the driver 13 is passed through the accommodating portion.

[0144] The cutterhead cover 14 protects the cutterhead, while the driver 13 provides the rotational energy for the blades on the cutterhead, thereby achieving rotation. The housing between the two sub-support arms 2111 accommodates the driver 13. This not only protects the driver 13 but also utilizes the space created by the support arms 211, resulting in a compact and reliable internal structure.

[0145] According to the second aspect of this application, please refer to Figure 4 As shown, in an exemplary embodiment of the present application, a smart lawn mower is provided, which includes the cutting system of any of the above embodiments. The specific beneficial effects and structure of the cutting system are detailed in the above embodiments and will not be repeated here.

[0146] The cutting system of the intelligent lawn mower includes: a cutting device 10 and a position adjustment device 20. Through the operation of the drive unit 23, the lateral position of the cutting device 10 can be efficiently and accurately adjusted. The drive unit 23 is mounted on the connecting frame 24 and slides with the lateral guide structure 22. Its driving part 231 directly acts on the driven part 221. Through the lateral displacement of the driving part 231 relative to the driven part 221, the connecting frame 24 is driven to slide laterally along the lateral guide structure 22, so that the cutting device 10 completes the position adjustment synchronously. Compared with the traditional lever mechanical structure, this design effectively improves the maximum stroke and control accuracy of the lateral displacement, and the controllable characteristics of the drive unit 23 can achieve rapid control and response, which can not only meet the operational requirements of the lawn mower for large-scale lateral cutting in complex terrain, but also ensure the position control accuracy during fine operations.

[0147] According to the third aspect of this application, please refer to Figure 4 As shown, in an exemplary embodiment of the present application, an intelligent lawn mower is provided, which includes: a body 30, a cutting system and a position adjustment device 20. The cutting system includes: a cutting device 10 and a position adjustment device 20; the position adjustment device 20 includes a support frame 21, a transverse guide structure 22, a drive unit 23 and a connecting frame 24; the transverse guide structure 22 is fixed to the support frame 21, and the cutting device 10 and the drive unit 23 are respectively arranged on the connecting frame 24, which is slidably connected to the transverse guide structure 22, and the drive unit 23 includes a driving part 231, and the transverse guide structure 22 includes a driven part 221, and the driving part 231 is connected to the driven part 221; wherein, the drive unit 23 drives the driving part 231 to move relative to the driven part 221 to adjust the sliding of the connecting frame 24 relative to the transverse guide structure 22, so that the cutting device 10 performs a movement action in the longitudinal direction of the transverse guide structure 22.

[0148] The intelligent lawn mower's drive unit 23 operates to efficiently and precisely adjust the lateral position of the cutting device 10. Drive unit 23 is mounted on the connecting frame 24 and slidably engages with the lateral guide structure 22. Its driving portion 231 directly acts on the driven portion 221. The lateral displacement of the driving portion 231 relative to the driven portion 221 drives the connecting frame 24 to slide laterally along the lateral guide structure 22, allowing the cutting device 10 to synchronously adjust its position. Compared to traditional lever mechanisms, this design effectively increases the maximum lateral displacement and control accuracy. Furthermore, the controllable nature of drive unit 23 enables rapid control and response, meeting the lawn mower's operational needs for large-scale lateral cutting in complex terrain while ensuring precise position control during delicate operations.

[0149] The direct coupling of the driving unit 231 and the driven unit 221 eliminates the need for an intermediate transmission mechanism, fundamentally avoiding the bulky cutting device 10 caused by an excessively long transmission chain. This results in a more compact horizontal layout for the entire cutting system. Furthermore, since the driving unit 23 moves synchronously with the cutting device 10, the elimination of redundant transmission components significantly reduces the load mass of the moving assembly. This allows for the use of a smaller, lower-power driving unit 23, improving system energy efficiency while optimizing the lawn mower's spatial layout.

[0150] The support frame 21 serves as a base structure and provides a rigid mounting base for the lateral guide assembly, ensuring the spatial positioning accuracy of the cutting device 10 and the position adjustment mechanism during operation. When integrated into the lawn mower, the support frame 21 can be firmly connected to the machine body 30.

[0151] In some exemplary embodiments of the present application, the cutting device 10 includes a driver 13, a blade cover 14 and a blade, the blade includes a blade, the blade cover 14 is connected to the driver 13, the blade is arranged below the blade cover 14, the blade is connected to the output shaft of the driver 13, the support arm 211 includes a receiving portion, and the driver 13 is passed through the receiving portion.

[0152] The cutterhead cover 14 protects the cutterhead, while the driver 13 provides the rotational energy for the blades on the cutterhead, thereby achieving rotation of the cutterhead. The support arm 211 includes a housing for the driver 13, which not only protects the driver 13 but also utilizes the space created by the support arm 211, resulting in a compact and reliable internal structure.

[0153] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of the present application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered merely as exemplary, and the true scope and spirit of the present application are indicated by the appended claims.

Claims

1. A cutting system for a lawn mower, characterized in that The cutting system comprises: cutting device; A position adjustment device comprising a support frame, a transverse guide structure, a drive unit and a connecting frame; The transverse guide structure is fixed to the support frame, the cutting device and the driving unit are respectively arranged on the connecting frame, the connecting frame is slidably connected to the transverse guide structure, the driving unit includes a driving part, the transverse guide structure includes a driven part, and the driving part is connected to the driven part; The driving unit drives the driving portion to move relative to the driven portion to adjust the connection frame to slide relative to the transverse guide structure, so that the cutting device moves in the length direction of the transverse guide structure.

2. The cutting system according to claim 1, characterized in that The driving unit and the cutting device are respectively located on opposite sides of the driven part. The driving unit, the driven part and the cutting device are sequentially arranged along the forward direction of the lawn mower.

3. The cutting system according to claim 2, characterized in that The driven part is a rack, the driving part is a gear, the gear is engaged with the rack, and the driving unit drives the gear to rotate so that the gear is displaced along the length direction of the rack.

4. The cutting system according to claim 1, characterized in that The support frame includes at least two support arms spaced apart in the vertical direction, the support arm includes two sub-support arms arranged along the length direction of the transverse guide structure, a fixed frame body is provided between the two sub-support arms spaced apart in the vertical direction, and the fixed frame body is rotatably connected to the two sub-support arms spaced apart in the vertical direction respectively, and the rotation axis of the fixed frame body relative to any one of the sub-support arms is parallel to the length direction of the transverse guide structure, and the driven part is fixed between the two fixed frames.

5. The cutting system according to claim 4, characterized in that The transverse guide structure also includes a first guide member and a second guide member arranged in sequence at least along the vertical direction, the two ends of the first guide member are rotatably connected to the two sub-support arms of one support arm, the two ends of the second guide member are rotatably connected to the two sub-support arms of another support arm, the cutting device is slidably connected to the first guide member and the second guide member at the same time, and / or the connecting frame is slidably connected to the first guide member and the second guide member at the same time.

6. The cutting system according to claim 5, characterized in that The cutting device includes a plurality of first sliding seats and a plurality of second sliding seats arranged along the length direction of the transverse guide structure, each of the first sliding seats is slidably connected to the first guide member, and each of the second sliding seats is slidably connected to the second guide member.

7. The cutting system according to claim 6, characterized in that The first guide member and the second guide member are both arranged parallel to the driven portion, and on a horizontal projection plane, the driven portion does not overlap with the first guide member and the second guide member.

8. The cutting system according to claim 7, characterized in that The connecting frame includes a horizontally extending connecting plate, and the connecting plate is fixedly connected to a side of at least one of the first sliding seats away from the second sliding seat.

9. The cutting system according to claim 4, characterized in that A structural beam is provided between the two fixing frames, and the structural beam is provided along the length direction of the transverse guide structure. The driven portion is fixedly connected to the structural beam, or the driven portion is integrally formed with the structural beam.

10. An intelligent lawn mower, characterized in that: Comprising a cutting system as claimed in any one of claims 1 to 9.

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