A disc mower

Abstract

An embodiment of the present invention provides a disc mower, which relates to the technical field of mowers. The disc mower includes: a mounting frame, a mowing mechanism, two lifting components, and four walking wheels; the mounting frame is a rectangular frame, and four guide shafts are arranged on the lower surface of the mounting frame, and the lower ends of the four guide shafts are respectively connected to the four walking wheels; the mowing mechanism is slidably connected to the four guide shafts, and the two lifting components are connected between the mounting frame and the mowing mechanism for driving the mowing mechanism to move up and down relative to the mounting frame; the mowing mechanism includes a machine shell, a limiting frame, a disc mowing knife, and a first driving component. The height of the mowing mechanism relative to the mounting frame can be adjusted, so as to realize the precise control of the height of the mowing mechanism from the ground, thereby adjusting the height of the grass left after mowing and meeting the different lawn trimming requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of lawn mowers, and specifically refers to a disc-type lawn mower. Background Art

[0002] A disc-type lawn mower is a common gardening tool widely used in lawn trimming and vegetation management. Its core component is a high-speed rotating disc blade, which is driven by an electric motor or an internal combustion engine. During rotation, the blade contacts the grass and cuts it. Due to its simple structure, convenient operation, high efficiency and other advantages, the disc-type lawn mower has become the preferred tool for home and commercial lawn maintenance. However, with the improvement of users' requirements for lawn aesthetics and functions, some limitations of traditional disc-type lawn mowers have gradually emerged.

[0003] Currently, there are some significant defects in the design and function of disc-type lawn mowers. Firstly, most disc-type lawn mowers cannot adjust the height of the grass left after mowing, which limits the user's ability to perform personalized trimming according to the type of lawn or seasonal requirements. Secondly, during the mowing process, only the disc blade is relied on for cutting. When the blade contacts the grass, the grass stems often undergo a certain degree of displacement, resulting in an uneven cutting surface and uneven mowing effects, which affect the overall aesthetics of the lawn. In addition, due to the lack of effective control over the displacement of grass stems, when the lawn mower trims high-density or tough grass, it is prone to missed cutting or incomplete cutting, further reducing the mowing efficiency and quality. These problems urgently need to be solved through technological innovation to meet users' requirements for efficient, precise and aesthetic mowing. Summary of the Invention

[0004] According to an embodiment of the present invention, a disc-type lawn mower is provided, which is used to solve the problems raised in the above background art.

[0005] In a first aspect of the present invention, a disc-type lawn mower is provided.

[0006] The disc-type lawn mower includes: a mounting frame, a mowing mechanism, two lifting components and four walking wheels; the mounting frame is a rectangular frame, and four guide shafts are arranged on the lower surface of the mounting frame, and the lower ends of the four guide shafts are respectively connected to the four walking wheels; the mowing mechanism is slidably connected to the four guide shafts, and the two lifting components are connected between the mounting frame and the mowing mechanism for driving the mowing mechanism to move up and down relative to the mounting frame;

[0007] The mowing mechanism includes a housing, a limiting frame, a disc mowing knife, and a first driving component; the housing is slidably connected to the four guiding shafts, the first driving component is arranged on the upper surface of the housing, the disc mowing knife is installed on the lower surface of the housing, the disc mowing knife is connected to the first driving component, the limiting frame is fixedly installed on the lower surface of the housing, and the disc mowing knife is located on the upper surface of the limiting frame.

[0008] Preferably, the mowing mechanism further includes a cleaning component, which includes a housing cover, equidistantly arranged fans, a filter structure, and a second driving component; the housing cover is connected to the housing and the limiting frame, the filter structure is cylindrical, the filter structure is rotatably connected to the housing cover, the fans are arranged inside the filter structure, the second driving component is connected to the housing cover, and the second driving component is used to drive the filter structure to rotate.

[0009] Preferably, the second driving component includes a second motor, a gear ring, and a gear; the second motor is installed on the housing cover, the gear ring is sleeved on the filter structure, and the gear is meshed with the gear ring;

[0010] Three limiting wheels are rotatably connected to both sides of the housing cover, the three limiting wheels are equidistantly distributed, the inner wall of the filter structure contacts the three limiting wheels, and the axis of the filter structure passes through the center point between the three limiting wheels.

[0011] Preferably, the limiting frame includes a frame body, limiting pieces, and two limiting arms; the frame body is fixedly connected to the housing, the number of the limiting pieces is multiple, the multiple limiting pieces are equidistantly distributed on the frame body, a limiting space is formed between adjacent limiting pieces, and the two limiting arms are connected to the frame body.

[0012] Preferably, the disc mowing knife includes a mounting disc, blades, and an annular frame; the mounting disc is connected to the first driving component, the number of the blades is multiple, the multiple blades are fixedly connected to the mounting disc, the blades are inclined, the annular frame and the mounting disc form concentric circles, the annular frame passes through the blades and is fixedly connected to the blades.

[0013] Preferably, the first driving assembly includes a first motor, a driving pulley, a transmission pulley, a first driven pulley, two second driven pulleys, a tensioning assembly, three driving shafts, a first transmission belt, and a second transmission belt; an installation cavity is arranged on the upper surface of the housing, the first motor is fixedly installed on the upper surface of the installation cavity, the driving pulley, the transmission pulley, the first driven pulley, the two second driven pulleys, the tensioning assembly, the three driving shafts, the first transmission belt, and the second transmission belt are all arranged inside the installation cavity; the output end of the first motor is connected to the driving pulley, the transmission pulley is connected to the driving pulley through the first transmission belt, the first driven pulley is fixedly connected to the transmission pulley, the second transmission belt bypasses the first driven pulley and the two second driven pulleys, the tensioning assembly contacts the second transmission belt, the three driving shafts are respectively fixedly connected to the first driven pulley and the two second driven pulleys, and the lower ends of the three driving shafts are respectively fixedly connected to the disk-type mowing blade.

[0014] Preferably, the tensioning assembly includes a rotating shaft, a tension spring, a tensioning arm, and a tensioning wheel; the rotating shaft is rotatably installed in the installation cavity, the tensioning arm is rotatably installed in the installation cavity, the tensioning wheel is rotatably connected to the tensioning arm, one end of the tension spring is connected to the rotating shaft, the other end of the tension spring is connected to the tensioning arm, and under the action of the tension of the tension spring, the tensioning arm drives the tensioning wheel to contact the second transmission belt.

[0015] Preferably, an installation arm is fixedly connected to the side surface of the housing, a sleeve is fixedly connected to the installation arm, and the guide shaft passes through the sleeve and is slidably connected to the sleeve.

[0016] Preferably, the lifting assembly includes a first mounting seat, a second mounting seat, a first support arm, a second support arm, and an electric push rod; the first mounting seat is fixedly connected to the upper surface of the installation arm, the second mounting seat is fixedly connected to the lower surface of the installation frame; the electric push rod is connected to the second mounting seat, a second sliding groove is arranged on the second mounting seat, a sliding piece is slidably installed in the second sliding groove, the output end of the electric push rod is connected to the sliding piece for driving the sliding piece to slide in the second sliding groove, a first sliding groove is arranged on the first mounting seat, one end of the first support arm is hinged to the second mounting seat, the other end of the first support arm is slidably connected to the first sliding groove, one end of the second support arm is hinged to the sliding piece, and the other end of the second support arm is slidably connected to the first sliding groove.

[0017] Preferably, a connecting seat is fixedly connected to the installation frame.

[0018] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0019] A disc mower provided by the present invention can adjust the height of the mowing mechanism relative to the mounting frame by operating the lifting assembly, thereby achieving precise control of the ground clearance of the mowing mechanism, and then adjusting the height of the grass left after mowing to meet different lawn mowing requirements. When the mower moves driven by a towing device, the grass stems will enter the limiting space of the limiting frame. Due to the limiting effect of the limiting frame, the displacement of the grass stems during the cutting process is effectively controlled, thereby reducing the inclination or deviation of the grass stems. The disc mowing knife precisely cuts the grass stems during rotation, ensuring a neat and consistent mowing effect and avoiding the problem of uneven mowing caused by the displacement of the grass stems in traditional mowers.

[0020] It should be understood that the content described in the Summary of the Invention section is not intended to limit the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] With reference to the accompanying drawings and the following detailed description, the above and other features, advantages, and aspects of the embodiments of the present invention will become more apparent. In the drawings, the same or similar reference numerals represent the same or similar elements, where:

[0022] Figure 1 Shows a perspective structural view of a disc mower according to an embodiment of the present invention;

[0023] Figure 2 Shows an exploded structural view of a disc mower according to an embodiment of the present invention;

[0024] Figure 3 Shows a side structural view of a disc mower according to an embodiment of the present invention;

[0025] Figure 4 Shows a perspective structural view of the mowing mechanism of a disc mower according to an embodiment of the present invention;

[0026] Figure 5 Shows a top structural view of the mowing mechanism of a disc mower according to an embodiment of the present invention;

[0027] Figure 6 Shows a perspective structural view of the first drive assembly of a disc mower according to an embodiment of the present invention;

[0028] Figure 7 Shows a perspective structural view of the internal structure of the housing of a disc mower according to an embodiment of the present invention;

[0029] Figure 8 Shows a front view structural schematic diagram of the internal structure of the housing of a disc mower according to an embodiment of the present invention;

[0030] Figure 9 Shows a three-dimensional structural schematic diagram of a disc mowing blade of a disc mower according to an embodiment of the present invention;

[0031] Figure 10 Shows an exploded structural schematic diagram of a cleaning assembly of a disc mower according to an embodiment of the present invention;

[0032] Figure 11 Shows a partial structural schematic diagram of a cleaning assembly of a disc mower according to an embodiment of the present invention;

[0033] Figure 12 Shows a side view cross-sectional structural schematic diagram of a cleaning assembly of a disc mower according to an embodiment of the present invention;

[0034] Figure 13 Shows a three-dimensional structural schematic diagram of a lifting assembly of a disc mower according to an embodiment of the present invention;

[0035] Figure 14 Shows a side view structural schematic diagram of a lifting assembly of a disc mower according to an embodiment of the present invention.

[0036] Description of reference numerals

[0037] 1 - mounting frame, 11 - guide shaft, 12 - connecting seat, 2 - mowing mechanism, 21 - housing, 211 - mounting cavity, 212 - mounting arm, 213 - sleeve, 22 - limiting frame, 221 - frame body, 222 - limiting piece, 223 - limiting arm, 23 - disc mowing blade, 231 - mounting disc, 232 - blade, 233 - annular frame, 24 - first driving assembly, 241 - first motor, 242 - driving pulley, 243 - belt pulley, 244 - first driven pulley, 245 - second driven pulley, 246 - tensioning assembly, 2461 - rotating shaft, 2462 - tension spring, 2463 - tensioning arm, 2464 - tensioning wheel, 247 - driving shaft, 248 - first transmission belt, 249 - second transmission belt, 25 - cleaning assembly, 251 - housing, 252 - fan, 253 - filter structure, 254 - second driving assembly, 2541 - second motor, 2542 - gear ring, 2543 - gear, 255 - limiting wheel, 3 - lifting assembly, 31 - first mounting seat, 311 - first sliding groove, 32 - second mounting seat, 321 - second sliding groove, 322 - sliding piece, 33 - first support arm, 34 - second support arm, 35 - electric push rod, 4 - walking wheel. Detailed implementation manners

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0039] In addition, the term "and / or" in this document is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally represents an "or" relationship between the associated objects before and after.

[0040] As Figures 1 to 14 shown, the disc mower includes a mounting frame 1, a mowing mechanism 2, two lifting assemblies 3, and four traveling wheels 4. The mounting frame 1 is a rectangular frame structure, and four guide shafts 11 are fixedly arranged on its lower surface. The lower ends of the four guide shafts 11 are respectively connected to the four traveling wheels 4, which are used to support the entire mower and enable it to move on the ground. The mowing mechanism 2 is cooperated with the four guide shafts 11 in a sliding connection manner, so that the mowing mechanism 2 can slide up and down along the guide shafts 11. The two lifting assemblies 3 are respectively installed between the mounting frame 1 and the mowing mechanism 2, and are used to drive the mowing mechanism 2 to move up and down relative to the mounting frame 1, thereby realizing the adjustment of the height of the mowing mechanism 2 from the ground.

[0041] During use, the mounting frame 1 is connected to a towing device (such as a tractor or other agricultural implements), and the power of the towing device drives the mower to move. The traveling wheels 4 are in contact with the ground, supporting the mower and ensuring its stable operation. By operating the lifting assemblies 3, the height of the mowing mechanism 2 relative to the mounting frame 1 can be adjusted, thereby realizing the precise control of the height of the mowing mechanism 2 from the ground, and then adjusting the height of the grass left after mowing to meet different lawn trimming requirements.

[0042] The mowing mechanism 2 includes a housing 21, a limiting frame 22, a disc mowing blade 23, and a first driving assembly 24. The housing 21 is engaged with four guiding shafts 11 through a sliding connection manner, so that the housing 21 can move up and down along the guiding shafts 11. The first driving assembly 24 is fixedly installed on the upper surface of the housing 21 and is used to provide power to drive the disc mowing blade 23 to rotate. The disc mowing blade 23 is installed on the lower surface of the housing 21 and is connected to the first driving assembly 24 through a transmission mechanism to achieve its high-speed rotation. The limiting frame 22 is fixedly installed on the lower surface of the housing 21 and is located below the disc mowing blade 23, and is used to limit the displacement of the grass stems during the cutting process. The disc mowing blade 23 is located above the limiting frame 22, so that after the grass stems enter the limiting space of the limiting frame 22, they can be accurately cut by the disc mowing blade 23.

[0043] During operation, the first driving assembly 24 is started, and the first driving assembly 24 drives the disc mowing blade 23 to rotate at a high speed through the transmission mechanism. When the mower moves driven by a towing device, the grass stems will enter the limiting space of the limiting frame 22. Due to the limiting effect of the limiting frame 22, the displacement of the grass stems during the cutting process is effectively controlled, thereby reducing the inclination or deviation of the grass stems. The disc mowing blade 23 accurately cuts the grass stems during the rotation process, ensuring that the mowing effect is neat and consistent, and avoiding the problem of uneven mowing caused by the displacement of the grass stems in traditional mowers.

[0044] In this embodiment, the mowing mechanism 2 further includes a cleaning assembly 25, which is used to collect and clean the cut grass clippings during the mowing process to further improve the operation efficiency and cleanliness of the mower. The cleaning assembly 25 includes a housing 251, evenly arranged fans 252, a filter structure 253, and a second driving assembly 254.

[0045] The housing 251 is fixedly connected between the housing 21 and the limiting frame 22 and is used to install the filter structure 253. The filter structure 253 is in a cylindrical shape, and filter holes are evenly distributed on its outer surface, and are used to block grass clippings and impurities from entering the filter structure 253. The filter structure 253 is rotationally connected to the housing 251, so that the filter structure 253 can rotate freely in the housing 251. The fans 252 are evenly arranged inside the filter structure 253 and are fixedly connected to the filter structure 253. When the fans 252 rotate, they generate an air flow to suck the cut grass clippings into the inside of the filter structure 253.

[0046] The second driving assembly 254 is fixedly installed on the outside of the housing 251 and is connected to the filter structure 253 through a transmission mechanism, and is used to drive the filter structure 253 to rotate.

[0047] Furthermore, as Figure 10As shown, the housing 251 includes two first plate bodies 2511, two second plate bodies 2512 and two inclined plates 2513. The two first plate bodies 2511 are connected by the two second plate bodies 2512. A discharge channel is formed between the two first plate bodies 2511 and the two second plate bodies 2512. The two inclined plates 2513 are connected to the two first plate bodies 2511, and the two inclined plates 2513 are matched with the filter screen structure 253.

[0048] During operation, the second driving assembly 254 is activated to drive the filter screen structure 253 and the fan 252 to rotate synchronously. The airflow generated when the fan 252 rotates sucks the cut grass clippings from the limiting space of the limiting frame 22 into the interior of the housing 251. The grass clippings adhere to the surface of the filter screen structure 253 along with the airflow and are intercepted by the filter holes of the filter screen structure 253, while the air is discharged through the filter holes. As the filter screen structure 253 continues to rotate, the intercepted grass clippings gradually fall under the action of gravity. Some grass may get stuck in the mesh holes of the filter screen structure 253. As the filter screen structure 253 continues to rotate, when the filter screen structure 253 rotates 180 degrees, the grass stuck in the mesh holes will be blown out by the fan. The cleaning of the interior of the housing 21 is achieved.

[0049] Through the design of the cleaning assembly 25, this disc mower can not only efficiently complete the mowing operation, but also clean the grass clippings in real time during the operation, ensuring the stable operation of the equipment and the neatness of the mowing effect. In addition, the rotating design of the filter screen structure 253 and the guiding function of the inclined plates 2513 further improve the cleaning efficiency and reduce the frequency of manual cleaning.

[0050] In this embodiment, the second driving assembly 254 includes a second motor 2541, a gear ring 2542 and a gear 2543. The second motor 2541 is fixedly installed on the outside of the housing 251 and is used to provide power to drive the filter screen structure 253 to rotate. The gear ring 2542 is sleeved on the outer surface of the filter screen structure 253 and is fixedly connected to the filter screen structure 253. The gear 2543 is meshed with the gear ring 2542 and is connected to the output shaft of the second motor 2541 through a transmission shaft. When the second motor 2541 is started, its output shaft drives the gear 2543 to rotate. The gear 2543 drives the gear ring 2542 and the filter screen structure 253 to rotate synchronously through meshing transmission with the gear ring 2542.

[0051] To ensure the stability and coaxiality of the filter screen structure 253 during rotation, three limiting wheels 255 are rotatably connected to both sides of the housing 251. The three limiting wheels 255 are equally spaced, and their axes are parallel to the axis of the filter screen structure 253. The inner wall of the filter screen structure 253 contacts the outer surfaces of the three limiting wheels 255, and the connecting lines of the center points of the three limiting wheels 255 form the rotation axis of the filter screen structure 253. Through the support and limiting functions of the three limiting wheels 255, the filter screen structure 253 can maintain stable coaxiality during rotation, avoiding unstable operation problems caused by eccentricity or vibration.

[0052] During operation, the second motor 2541 is started, and the second motor 2541 drives the gear 2543 to rotate. The gear 2543 drives the gear ring 2542 and the filter screen structure 253 to rotate synchronously through meshing transmission with the gear ring 2542. At the same time, the three limiting wheels 255 contact the inner wall of the filter screen structure 253 and rotate self - driven under the drive of the filter screen structure 253. The self - rotation of the three limiting wheels 255 not only reduces the frictional resistance when the filter screen structure 253 rotates, but also further ensures the rotation stability and coaxiality of the filter screen structure 253.

[0053] Through the cooperative design of the second driving assembly 254 and the limiting wheels 255, the filter screen structure 253 can achieve efficient and stable rotation, thereby ensuring the cleaning effect of the cleaning assembly 25 on grass clippings during mowing. In addition, the supporting effect of the limiting wheels 255 effectively reduces the vibration and eccentricity of the filter screen structure 253, extends the service life of the equipment, and improves the overall operation reliability of the lawn mower.

[0054] In this embodiment, the limiting frame 22 includes a frame body 221, limiting pieces 222, and two limiting arms 223. The frame body 221 is fixedly connected to the machine housing 21 to form a stable support structure. The number of the limiting pieces 222 is multiple, and the multiple limiting pieces 222 are equally spaced on the frame body 221, and uniform limiting spaces are formed between adjacent limiting pieces 222. The two limiting arms 223 are respectively connected to both ends of the frame body 221 to further fix the limiting frame 22 and enhance its structural strength.

[0055] The overall structure of the limiting frame 22 is in a comb - like shape, and this design plays a key role during the walking process of the lawn mower. When the lawn mower moves, the grass stems will enter the limiting spaces of the limiting frame 22. The limiting pieces 222 limit and comb the grass stems through their equally - spaced arrangement, making the grass stems evenly distributed before cutting, and avoiding uneven cutting caused by the accumulation or inclination of the grass stems. At the same time, the setting of the limiting pieces 222 can also effectively reduce the displacement of the grass stems during cutting, ensuring that the grass stems remain stable within the cutting range of the disc - type mowing knife 23.

[0056] During the mowing process, the disc mowing blade 23 rotates at a high speed to cut the grass stems that enter the limiting space of the limiting frame 22. Due to the limiting effect of the limiting piece 222, the grass stems will not shift or tilt significantly during cutting, thus ensuring the flatness and consistency of the cutting surface. This design not only improves the neatness of mowing but also significantly enhances the aesthetics of the mowing effect.

[0057] Through the comb tooth structure design of the limiting frame 22, this disc mower can achieve efficient limiting and uniform distribution of grass stems, ensuring the balanced and consistent cutting effect of the disc mowing blade 23. In addition, the structure of the limiting frame 22 is simple and easy to install, and it can adapt to different types of lawns and mowing requirements.

[0058] In this embodiment, the disc mowing blade 23 includes a mounting disc 231, blades 232, and an annular frame 233. The mounting disc 231 is fixedly connected to the output shaft of the first driving component 24, and is used to receive the power of the first driving component 24 and drive the blades 232 to rotate. The number of the blades 232 is multiple, and the multiple blades 232 are evenly distributed on the edge of the mounting disc 231 and fixedly connected to the mounting disc 231. The blades 232 are inclined, and their inclination angle is optimized according to the cutting requirements to improve the cutting efficiency and effect. The annular frame 233 is coaxially arranged with the mounting disc 231, passes through the middle parts of the multiple blades 232, and is fixedly connected to the blades 232 to form an integral structure.

[0059] During operation, the first driving component 24 is started to drive the mounting disc 231 to rotate at a high speed. The mounting disc 231 drives the blades 232 to rotate synchronously. The inclined design of the blades 232 enables them to contact the grass stems at the best angle during rotation, thus achieving efficient cutting. The setting of the annular frame 233 not only enhances the structural strength of the blades 232 but also improves the stability of the blades 232 during high-speed rotation, avoiding deformation or deviation of the blades 232 caused by centrifugal force or vibration.

[0060] Through the optimized design of the disc mowing blade 23, this mower can achieve efficient and precise cutting of grass stems. The inclined setting of the blades 232 and the reinforcement effect of the annular frame 233 significantly improve the cutting effect and the stability of the equipment operation.

[0061] In this embodiment, the first driving assembly 24 includes a first motor 241, a driving pulley 242, a transmission pulley 243, a first driven pulley 244, two second driven pulleys 245, a tensioning assembly 246, three driving shafts 247, a first transmission belt 248 and a second transmission belt 249. An installation cavity 211 is provided on the upper surface of the housing 21 for accommodating the components of the first driving assembly 24. The first motor 241 is fixedly installed on the upper surface of the installation cavity 211 for providing power to drive the rotary disk mower 23 to rotate. The driving pulley 242, the transmission pulley 243, the first driven pulley 244, the two second driven pulleys 245, the tensioning assembly 246, the three driving shafts 247, the first transmission belt 248 and the second transmission belt 249 are all arranged inside the installation cavity 211 to form a compact transmission system.

[0062] The output end of the first motor 241 is fixedly connected to the driving pulley 242 for driving the driving pulley 242 to rotate. The transmission pulley 243 is connected to the driving pulley 242 through the first transmission belt 248 to achieve power transmission. The first driven pulley 244 is fixedly connected to the transmission pulley 243 and rotates synchronously with the transmission pulley 243. The two second driven pulleys 245 are connected to the first driven pulley 244 through the second transmission belt 249 to achieve further power transmission. The tensioning assembly 246 contacts the second transmission belt 249 for adjusting the tension of the second transmission belt 249 to ensure the stable operation of the transmission system. The three driving shafts 247 are respectively fixedly connected to the first driven pulley 244 and the two second driven pulleys 245 and are rotatably connected to the installation cavity 211 through bearings. The lower ends of the three driving shafts 247 are respectively fixedly connected to the three rotary disk mowers 23 for driving the rotary disk mowers 23 to rotate.

[0063] During operation, the first motor 241 is started, and the output end of the first motor 241 drives the driving pulley 242 to rotate. The driving pulley 242 drives the transmission pulley 243 to rotate through the first transmission belt 248, and the transmission pulley 243 drives the first driven pulley 244 to rotate synchronously. The first driven pulley 244 drives the two second driven pulleys 245 to rotate through the second transmission belt 249, so as to achieve the synchronous rotation of the first driven pulley 244 and the two second driven pulleys 245. The first driven pulley 244 and the two second driven pulleys 245 respectively drive the three driving shafts 247 to rotate, and the lower ends of the three driving shafts 247 drive the three rotary disk mowers 23 to rotate synchronously to complete the cutting of the grass stems.

[0064] Through the design of the first driving component 24, the lawn mower can achieve synchronous driving of multiple disc mowing blades 23, ensuring the efficiency and consistency of the mowing operation. The setting of the tensioning component 246 further improves the stability and reliability of the transmission system, reduces the risk of the transmission belt loosening or slipping, and extends the service life of the equipment.

[0065] In this embodiment, the tensioning component 246 includes a rotating shaft 2461, a tension spring 2462, a tensioning arm 2463 and a tensioning wheel 2464. The rotating shaft 2461 is rotatably installed in the installation cavity 211 through a bearing, and is used to support the tensioning component 246 and realize its rotation function. One end of the tensioning arm 2463 is rotatably installed in the installation cavity 211 by means of hinge, and the other end is rotatably connected to the tensioning wheel 2464. The tensioning wheel 2464 is connected to the tensioning arm 2463 through a bearing and can freely rotate under the drive of the tensioning arm 2463. One end of the tension spring 2462 is fixedly connected to the rotating shaft 2461, and the other end is connected to the tensioning arm 2463, and is used to provide a pulling force to make the tensioning arm 2463 drive the tensioning wheel 2464 to contact the second transmission belt 249.

[0066] Furthermore, a certain distance is maintained between the rotating shaft 2461 and the second transmission belt 249. The tension spring 2462 pulls the tensioning arm 2463 to move towards the rotating shaft 2461 through its elastic pulling force. Under the pulling force of the tension spring 2462, the tensioning arm 2463 drives the tensioning wheel 2464 to approach the second transmission belt 249 until the tensioning wheel 2464 contacts the second transmission belt 249 and applies a certain pressure. The contact between the tensioning wheel 2464 and the second transmission belt 249 can effectively adjust the tension of the second transmission belt 249, prevent the second transmission belt 249 from loosening or slipping during the transmission process, and ensure the stable operation of the transmission system.

[0067] During operation, as the first motor 241 drives the driving pulley 242 to rotate, the second transmission belt 249 may become loose during the transmission process due to long-term use or load changes. At this time, the tensioning component 246 automatically adjusts the position of the tensioning wheel 2464 through the elastic pulling force of the tension spring 2462, so that the tensioning wheel 2464 always contacts the second transmission belt 249 and applies an appropriate tensioning force to the second transmission belt 249. This design not only improves the reliability of the transmission system, but also reduces the power loss or equipment failure caused by the loosening of the transmission belt.

[0068] In this embodiment, a mounting arm 212 is fixedly connected to the side surface of the housing 21 for realizing the sliding connection between the housing 21 and the guide shaft 11. The number of the mounting arms 212 matches the number of the guide shafts 11, and a sleeve 213 is fixedly connected to each mounting arm 212. The sleeve 213 is fixed to the mounting arm 212 by welding or bolt connection to form a stable support structure. The guide shaft 11 passes through the sleeve 213 and is slidably connected to the sleeve 213, so that the housing 21 can slide up and down along the guide shaft 11, thereby realizing the lifting movement of the mowing mechanism 2.

[0069] The inner diameter of the sleeve 213 is slightly larger than the outer diameter of the guide shaft 11 to ensure that the guide shaft 11 can freely slide within the sleeve 213 while reducing the frictional resistance. To further reduce the friction and wear during the sliding process, the inner wall of the sleeve 213 can be coated with a lubricating material or a sliding bearing can be installed to improve the sliding smoothness and service life.

[0070] During operation, the lifting assembly 3 pushes or pulls the housing 21 to move up and down along the guide shaft 11 through a driving mechanism (such as a hydraulic cylinder, an electric push rod, etc.). Due to the sliding connection design between the guide shaft 11 and the sleeve 213, the housing 21 can maintain a stable movement trajectory during the lifting process, avoiding deviation or shaking. This design not only improves the accuracy and stability of the lifting of the mowing mechanism 2, but also ensures the adjustability of the mowing height to meet different lawn trimming requirements.

[0071] In this embodiment, the lifting assembly 3 includes a first mounting seat 31, a second mounting seat 32, a first support arm 33, a second support arm 34, and an electric push rod 35. The first mounting seat 31 is fixedly connected to the upper surface of the mounting arm 212 for supporting the mowing mechanism 2 and realizing its lifting movement. The second mounting seat 32 is fixedly connected to the lower surface of the mounting frame 1 for fixing the base part of the lifting assembly 3. The electric push rod 35 is fixedly installed on the second mounting seat 32 for providing power to drive the movement of the lifting assembly 3.

[0072] A second sliding groove 321 is provided on the second mounting seat 32, and a sliding piece 322 is slidably installed in the second sliding groove 321. The output end of the electric push rod 35 is connected to the sliding piece 322 for driving the sliding piece 322 to slide in the second sliding groove 321. A first sliding groove 311 is provided on the first mounting seat 31 for realizing the sliding connection of the first support arm 33 and the second support arm 34. One end of the first support arm 33 is hinged to the second mounting seat 32, and the other end is slidably connected to the first sliding groove 311. One end of the second support arm 34 is hinged to the sliding piece 322, and the other end is slidably connected to the first sliding groove 311.

[0073] During operation, the electric push rod 35 is activated, and the output end of the electric push rod 35 pushes or pulls the sliding piece 322 to slide within the second chute 321. When the sliding piece 322 moves away from the electric push rod 35, the sliding piece 322 drives the second arm 34 to move. The second arm 34 pushes the first arm 33 to rotate around its hinge point with the second mounting base 32 through the hinge point. At this time, under the combined action of the second arm 34 and the first arm 33, the first mounting base 31 approaches the second mounting base 32, thereby driving the mowing mechanism 2 to move upward.

[0074] When the sliding piece 322 moves towards the electric push rod 35, the sliding piece 322 drives the second arm 34 to move in the reverse direction. The second arm 34 pulls the first arm 33 to rotate around its hinge point with the second mounting base 32 through the hinge point. At this time, under the combined action of the second arm 34 and the first arm 33, the first mounting base 31 moves away from the second mounting base 32, thereby driving the mowing mechanism 2 to move downward.

[0075] Through the design of the lifting assembly 3, the lawn mower can achieve precise adjustment of the height of the mowing mechanism 2 to meet the needs of mowing different lawns. The driving method of the electric push rod 35 is simple and reliable, which can ensure the smoothness and precision of the lifting process. The linkage design of the first arm 33 and the second arm 34 further improves the stability and load-bearing capacity of the lifting assembly 3, ensuring that the mowing mechanism 2 maintains a stable movement trajectory during the lifting process.

[0076] In this embodiment, a connecting seat 12 is fixedly connected to the mounting frame 1 for connecting the lawn mower to a towing device (such as a tractor or other agricultural implements). The connecting seat 12 is fixed to the front end or the rear end of the mounting frame 1 by welding or bolt connection, and the specific position is designed according to the connection requirements of the towing device. The structure of the connecting seat 12 generally includes one or more connecting holes for cooperating with the hook or connecting pin of the towing device to ensure that the lawn mower can be firmly connected to the towing device.

[0077] The above specific embodiments do not constitute a limitation to the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A disc mower, characterized in that, Including: An installation frame (1), a mowing mechanism (2), two lifting components (3) and four walking wheels (4); the installation frame (1) is a rectangular frame, and four guide shafts (11) are arranged on the lower surface of the installation frame (1), and the lower ends of the four guide shafts (11) are respectively connected to the four walking wheels (4); the mowing mechanism (2) is slidably connected to the four guide shafts (11), and the two lifting components (3) are connected between the installation frame (1) and the mowing mechanism (2) for driving the mowing mechanism (2) to move up and down relative to the installation frame (1). The mowing mechanism (2) includes a machine shell (21), a limiting frame (22), a disc mowing knife (23) and a first driving component (24); the machine shell (21) is slidably connected to the four guide shafts (11), the first driving component (24) is arranged on the upper surface of the machine shell (21), the disc mowing knife (23) is installed on the lower surface of the machine shell (21), the disc mowing knife (23) is connected to the first driving component (24), the limiting frame (22) is fixedly installed on the lower surface of the machine shell (21), and the disc mowing knife (23) is located on the upper surface of the limiting frame (22). The limiting frame (22) includes a frame body (221), limiting pieces (222) and two limiting arms (223); the frame body (221) is fixedly connected to the machine shell (21), the number of the limiting pieces (222) is multiple, and the multiple limiting pieces (222) are equidistantly distributed on the frame body (221), and a limiting space is formed between adjacent limiting pieces (222), and the two limiting arms (223) are connected to the frame body (221). An installation arm (212) is fixedly connected to the side surface of the machine shell (21), a sleeve (213) is fixedly connected to the installation arm (212), and the guide shaft (11) passes through the sleeve (213) and is slidably connected to the sleeve (213). The lifting assembly (3) includes a first mounting base (31), a second mounting base (32), a first arm (33), a second arm (34), and an electric push rod (35); the first mounting base (31) is fixedly connected to the upper surface of the mounting arm (212), and the second mounting base (32) is fixedly connected to the lower surface of the mounting frame (1); the electric push rod (35) is connected to the second mounting base (32), a second sliding groove (321) is provided on the second mounting base (32), a sliding piece (322) is slidably mounted in the second sliding groove (321), the output end of the electric push rod (35) is connected to the sliding piece (322) and is used to drive the sliding piece (322) to slide in the second sliding groove (321), a first sliding groove (311) is provided on the first mounting base (31), one end of the first arm (33) is hinged to the second mounting base (32), the other end of the first arm (33) is slidably connected to the first sliding groove (311), one end of the second arm (34) is hinged to the sliding piece (322), and the other end of the second arm (34) is slidably connected to the first sliding groove (311).

2. The disk mower according to claim 1, characterized in that, The mowing mechanism (2) further includes a cleaning assembly (25), and the cleaning assembly (25) includes a housing (251), fans (252) arranged at equal intervals, a filter structure (253), and a second driving assembly (254); the housing (251) is connected to the machine housing (21) and the limiting frame (22), the filter structure (253) is in a cylindrical shape, the filter structure (253) is rotatably connected to the housing (251), the fans (252) are arranged inside the filter structure (253), the second driving assembly (254) is connected to the housing (251), and the second driving assembly (254) is used to drive the filter structure (253) to rotate.

3. The disk mower according to claim 2, characterized in that, The second driving assembly (254) includes a second motor (2541), a gear ring (2542), and a gear (2543); the second motor (2541) is installed on the housing (251), the gear ring (2542) is sleeved on the filter structure (253), and the gear (2543) is meshed and connected to the gear ring (2542); Three limiting wheels (255) are rotatably connected to both sides of the housing (251), the three limiting wheels (255) are equally spaced, the inner wall of the filter structure (253) is in contact with the three limiting wheels (255), and the axis of the filter structure (253) passes through the center point between the three limiting wheels (255).

4. The disk mower according to claim 1, wherein The disc mowing blade (23) includes a mounting disc (231), a blade (232), and an annular frame (233); the mounting disc (231) is connected to the first driving assembly (24), the number of the blades (232) is multiple, the multiple blades (232) are fixedly connected to the mounting disc (231), the blades (232) are arranged obliquely, the annular frame (233) and the mounting disc (231) form concentric circles, the annular frame (233) passes through the blades (232) and is fixedly connected to the blades (232).

5. The disc mower according to claim 1, wherein The first driving assembly (24) includes a first motor (241), a driving pulley (242), a transmission pulley (243), a first driven pulley (244), two second driven pulleys (245), a tensioning assembly (246), three driving shafts (247), a first transmission belt (248), and a second transmission belt (249); an installation cavity (211) is arranged on the upper surface of the machine shell (21), the first motor (241) is fixedly installed on the upper surface of the installation cavity (211), the driving pulley (242), the transmission pulley (243), the first driven pulley (244), the two second driven pulleys (245), the tensioning assembly (246), the three driving shafts (247), the first transmission belt (248), and the second transmission belt (249) are all arranged inside the installation cavity (211); the output end of the first motor (241) is connected to the driving pulley (242), the transmission pulley (243) is connected to the driving pulley (242) through the first transmission belt (248), the first driven pulley (244) is fixedly connected to the transmission pulley (243), the second driven pulley (245) bypasses the first driven pulley (244) and the two second driven pulleys (245), the tensioning assembly (246) contacts the second transmission belt (249), the three driving shafts (247) are respectively fixedly connected to the first driven pulley (244) and the two second driven pulleys (245), and the lower ends of the three driving shafts (247) are respectively fixedly connected to the disc mowing blade (23).

6. The disc mower according to claim 5, characterized in that, The tensioning assembly (246) includes a rotating shaft (2461), a tension spring (2462), a tensioning arm (2463), and a tensioning wheel (2464); the rotating shaft (2461) is rotatably installed in the installation cavity (211), the tensioning arm (2463) is rotatably installed in the installation cavity (211), the tensioning wheel (2464) is rotatably connected to the tensioning arm (2463), one end of the tension spring (2462) is connected to the rotating shaft (2461), the other end of the tension spring (2462) is connected to the tensioning arm (2463), and under the action of the tension of the tension spring (2462), the tensioning arm (2463) drives the tensioning wheel (2464) to contact the second transmission belt (249).

7. The disk mower according to claim 1, characterized in that, A connection seat (12) is fixedly connected to the installation frame (1).

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