Disc type mower

Abstract

The embodiment of the invention provides a disc type mower, and relates to the technical field of mowers. The disc type mower comprises an installation frame, a mowing mechanism, two lifting assemblies and four walking wheels. The mounting frame is a rectangular frame, four guide shafts are arranged on the lower surface of the mounting frame, and the lower ends of the four guide shafts are connected with the four walking wheels respectively; the mowing mechanism is slidably connected with the four guide shafts, and the two lifting assemblies are connected between the mounting frame and the mowing mechanism and used for driving the mowing mechanism to ascend and descend relative to the mounting frame; the mowing mechanism comprises a machine shell, a limiting frame, a disc type mowing knife and a first driving assembly. The height of the mowing mechanism relative to the mounting frame can be adjusted, so that the ground clearance of the mowing mechanism is accurately controlled, the height of grass left after mowing is adjusted, and the mowing requirements of different lawns are met.

Description

Technical Field

[0001] The invention relates to the technical field of lawn mowers, in particular to a disc type lawn mower. Background Art

[0002] Disc mower is a common garden tool, widely used for lawn mowing and vegetation management. Its core component is a high-speed rotating disc blade, which is driven by a motor or internal combustion engine. The blade contacts the grass and cuts it during rotation. Disc mowers have become the preferred tool for home and commercial lawn maintenance due to their simple structure, easy operation and high efficiency. However, as users' demands for lawn beauty and functionality increase, traditional disc mowers have gradually exposed some limitations.

[0003] Currently, disc mowers have some significant design and functional flaws. First, most disc mowers cannot adjust the height of the grass left after mowing, which limits the user's ability to personalize mowing according to lawn type or seasonal needs. Secondly, the mowing process relies solely on the disc blade for cutting. When the blade contacts the grass, the grass stems tend to shift to a certain extent, resulting in an uneven cutting surface and uneven mowing results, affecting the overall aesthetics of the lawn. In addition, due to the lack of effective control over the displacement of the grass stems, the mower is prone to missing or incomplete cutting when mowing high-density or tough grass, further reducing mowing efficiency and quality. These problems urgently need to be solved through technological innovation to meet users' needs for efficient, precise and beautiful mowing. Summary of the invention

[0004] According to an embodiment of the present invention, a disc mower is provided to solve the problems raised by the above-mentioned background technology.

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

[0006] The disc mower comprises: a mounting frame, a mowing mechanism, two lifting assemblies and four running 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 running wheels; the mowing mechanism is slidably connected to the four guide shafts, and the two lifting assemblies are connected between the mounting frame and the mowing mechanism, and are used to drive the mowing mechanism to perform lifting motion relative to the mounting frame; The mowing mechanism includes a casing, a limiting frame, a disc mower and a first drive assembly; the casing is slidably connected to the four guide shafts, the first drive assembly is arranged on the upper surface of the casing, and the disc mower is installed on the lower surface of the casing. The disc mower is connected to the first drive assembly, the limiting frame is fixedly installed on the lower surface of the casing, and the disc mower is located on the upper surface of the limiting frame.

[0007] Preferably, the mowing mechanism also includes a cleaning component, which includes a cover, an equidistantly arranged fan, a filter structure and a second drive component; the cover is connected to the casing and the limit frame, the filter structure is cylindrical, and the filter structure is rotatably connected to the cover, the fan is arranged inside the filter structure, and the second drive component is connected to the cover, and the second drive component is used to drive the filter structure to rotate.

[0008] Preferably, the second driving assembly comprises a second motor, a gear ring and a gear; the second motor is mounted on the housing, the gear ring is sleeved on the filter structure, and the gear is meshedly connected with the gear ring; The two sides of the cover shell are rotatably connected with three limiting wheels, the three limiting wheels are equidistantly distributed, the inner wall of the filter structure is in contact with the three limiting wheels, and the axis of the filter structure passes through the center point between the three limiting wheels.

[0009] Preferably, the limit frame includes a frame, a limit plate and two limit arms; the frame is fixedly connected to the casing, there are multiple limit plates, and the multiple limit plates are equidistantly distributed on the frame, a limit space is formed between adjacent limit plates, and the two limit arms are connected to the frame.

[0010] Preferably, the disc mower comprises a mounting disc, blades and an annular frame; the mounting disc is connected to the mounting disc via the first drive assembly, the number of the blades is multiple, the multiple blades are fixedly connected to the mounting disc, the blades are arranged at an angle, the annular frame forms a concentric circle with the mounting disc, and the annular frame passes through the blades and is fixedly connected to the blades.

[0011] 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 provided on the upper surface of the casing, 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 driven pulley bypasses the first driven pulley and the two second driven pulleys, the tensioning assembly contacts the second transmission belt, the three driving shafts are fixedly connected to the first driven pulley and the two second driven pulleys, respectively, and the lower ends of the three driving shafts are fixedly connected to the disc mower.

[0012] Preferably, the tensioning assembly includes a rotating shaft, a tensioning 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, and the other end of the tension spring is connected to the tensioning arm, and the tensioning arm drives the tensioning wheel to contact the second transmission belt under the action of the tension force of the tension spring.

[0013] Preferably, a mounting arm is fixedly connected to the side of the housing, a sleeve is fixedly connected to the mounting arm, and the guide shaft passes through the sleeve and is slidably connected to the sleeve.

[0014] 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 mounting arm, and the second mounting seat is fixedly connected to the lower surface of the mounting frame; the electric push rod is connected to the second mounting seat, a second slide groove is provided on the second mounting seat, a sliding plate is slidably installed in the second slide groove, the output end of the electric push rod is connected to the sliding plate for driving the sliding plate to slide in the second slide groove, a first slide groove is provided 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 slide groove, one end of the second support arm is hinged to the sliding plate, and the other end of the second arm is slidably connected to the first slide groove.

[0015] Preferably, a connecting seat is fixedly connected to the mounting frame.

[0016] One or more technical solutions provided in this application have at least the following technical effects or advantages: The present invention provides a disc mower, which can adjust the height of the mowing mechanism relative to the mounting frame by operating the lifting assembly, thereby achieving precise control of the height of the mowing mechanism from the ground, thereby adjusting the height of the grass left after mowing to meet different lawn mowing requirements. When the mower moves driven by the traction 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 mower cuts the grass stems accurately during the rotation process, ensuring a uniform mowing effect, and avoiding the problem of uneven mowing caused by the displacement of the grass stems in traditional mowers.

[0017] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended 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

[0018] The above and other features, advantages and aspects of the embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein: Figure 1 A schematic diagram of the three-dimensional structure of a disc mower according to an embodiment of the present invention is shown; Figure 2 It shows an exploded structural schematic diagram of a disc mower according to an embodiment of the present invention; Figure 3 A schematic side view of the structure of a disc mower according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the three-dimensional structure of a mowing mechanism of a disc mower according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of the structure of a mowing mechanism of a disc mower according to an embodiment of the present invention is shown in a top view; Figure 6 It shows a three-dimensional structural schematic diagram of a first driving assembly of a disc mower according to an embodiment of the present invention; Figure 7 A schematic diagram showing a three-dimensional structure of the internal structure of a housing of a disc mower according to an embodiment of the present invention; Figure 8 A schematic diagram showing the front view of the internal structure of the housing of a disc mower according to an embodiment of the present invention; Fig. 9A schematic diagram of the three-dimensional structure of a disc mower of a disc mower according to an embodiment of the present invention is shown; Fig.10 A schematic diagram of an exploded structure of a cleaning assembly of a disc mower according to an embodiment of the present invention is shown; Fig.11 A partial structural schematic diagram of a cleaning assembly of a disc mower according to an embodiment of the present invention is shown; Fig.12 A schematic diagram of a side cross-sectional structure of a cleaning assembly of a disc mower according to an embodiment of the present invention is shown; Fig.13 A schematic diagram of the three-dimensional structure of a lifting assembly of a disc mower according to an embodiment of the present invention is shown; Fig.14 A side structural schematic diagram of a lifting assembly of a disc mower according to an embodiment of the present invention is shown.

[0019] Description of Reference Numerals 1-installation frame, 11-guide shaft, 12-connecting seat, 2-mowing mechanism, 21-housing, 211-installation cavity, 212-installation arm, 213-sleeve, 22-limiting frame, 221-frame, 222-limiting piece, 223-limiting arm, 23-disc mower, 231-installation plate, 232-blade, 233-ring frame, 24-first drive assembly, 241-first motor, 242-driving pulley, 243-transmission pulley, 244-first driven pulley, 245-second driven pulley, 246-tensioning assembly, 2461-rotating shaft, 2462-pulling Spring, 2463-tensioning arm, 2464-tensioning wheel, 247-drive shaft, 248-first transmission belt, 249-second transmission belt, 25-cleaning assembly, 251-cover, 252-fan, 253-filter structure, 254-second drive assembly, 2541-second motor, 2542-gear ring, 2543-gear, 255-limiting wheel, 3-lifting assembly, 31-first mounting seat, 311-first slide groove, 32-second mounting seat, 321-second slide groove, 322-sliding sheet, 33-first support arm, 34-second support arm, 35-electric push rod, 4-travel wheel. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0022] like Figures 1 to 14 As shown, the disc mower includes a mounting frame 1, a mowing mechanism 2, two lifting assemblies 3 and four running 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 running wheels 4, which are used to support the entire mower and realize its movement on the ground. The mowing mechanism 2 cooperates with the four guide shafts 11 by a sliding connection, 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 perform lifting movement relative to the mounting frame 1, so as to adjust the height of the mowing mechanism 2 from the ground.

[0023] When in use, the mounting frame 1 is connected to a traction device (such as a tractor or other agricultural machinery), and the lawn mower is driven to move by the power of the traction device. The running wheels 4 are in contact with the ground, supporting the lawn mower and ensuring its smooth operation. By operating the lifting assembly 3, the height of the mowing mechanism 2 relative to the mounting frame 1 can be adjusted, thereby achieving precise control of the height of the mowing mechanism 2 from the ground, thereby adjusting the height of the grass left after mowing, and meeting different lawn mowing requirements.

[0024] 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 cooperates with the four guide shafts 11 by a sliding connection, so that the housing 21 can move up and down along the guide shafts 11. The first driving assembly 24 is fixedly mounted 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 mounted 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 mounted on the lower surface of the housing 21 and is located on the lower side of the disc mowing blade 23, and is used to limit the displacement of the grass stem during the cutting process. The disc mowing blade 23 is located above the limiting frame 22, so that the grass stem can be accurately cut by the disc mowing blade 23 after entering the limiting space of the limiting frame 22.

[0025] When working, the first drive assembly 24 is started, and the first drive assembly 24 drives the disc mower 23 to rotate at high speed through the transmission mechanism. When the mower moves under the drive of the traction 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 mower 23 accurately cuts the grass stems during the rotation process, ensuring a uniform mowing effect, avoiding the problem of uneven mowing caused by the displacement of the grass stems in traditional mowers.

[0026] In this embodiment, the mowing mechanism 2 further includes a cleaning assembly 25 for collecting and cleaning the cut grass during the mowing process to further improve the operating efficiency and cleanliness of the mower. The cleaning assembly 25 includes a housing 251, fans 252 arranged at equal distances, a filter structure 253, and a second drive assembly 254.

[0027] The cover 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 cylindrical, and its outer surface is evenly distributed with filter holes, which are used to prevent grass clippings and impurities from entering the filter structure 253. The filter structure 253 is rotatably connected to the cover 251, so that the filter structure 253 can rotate freely in the cover 251. The fans 252 are equidistantly arranged inside the filter structure 253 and are fixedly connected to the filter structure 253. The fan 252 generates airflow when rotating, and sucks the cut grass clippings into the filter structure 253.

[0028] The second driving assembly 254 is fixedly mounted on the outer side of the housing 251 and connected to the filter structure 253 via a transmission mechanism, so as to drive the filter structure 253 to rotate.

[0029] Furthermore, if Fig.10 As shown, the cover shell 251 includes two first plates 2511, two second plates 2512 and two inclined plates 2513. The two first plates 2511 are connected by two second plates 2512. A discharge channel is formed between the two first plates 2511 and the two second plates 2512. The two inclined plates 2513 are connected to the two first plates 2511, and the two inclined plates 2513 match the filter structure 253.

[0030] During operation, the second drive assembly 254 is started to drive the filter structure 253 and the fan 252 to rotate synchronously. The airflow generated by the rotation of the fan 252 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 structure 253 along with the airflow, and are intercepted by the filter holes of the filter structure 253, while the air is discharged through the filter holes. As the filter structure 253 continues to rotate, the intercepted grass clippings gradually fall under the action of gravity, and some grass may be stuck in the mesh of the filter structure 253. As the filter structure 253 continues to rotate, when the filter structure 253 rotates 180 degrees, the grass stuck in the mesh will be blown out by the fan. Cleaning of the housing 21 is achieved.

[0031] Through the design of the cleaning component 25, the disc mower can not only efficiently complete the mowing operation, but also clean up grass clippings in real time during the operation, ensuring the stable operation of the device and the neatness of the mowing effect. In addition, the rotating design of the filter structure 253 and the guiding effect of the inclined plate 2513 further improve the cleaning efficiency and reduce the frequency of manual cleaning.

[0032] In this embodiment, the second drive assembly 254 includes a second motor 2541, a ring gear 2542 and a gear 2543. The second motor 2541 is fixedly mounted on the outer side of the housing 251, and is used to provide power to drive the filter structure 253 to rotate. The ring gear 2542 is sleeved on the outer surface of the filter structure 253 and is fixedly connected to the filter structure 253. The gear 2543 is meshedly connected with the ring gear 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, and the gear 2543 drives the ring gear 2542 and the filter structure 253 to rotate synchronously through meshing transmission with the ring gear 2542.

[0033] In order to ensure the stability and coaxiality of the filter structure 253 during rotation, three limiting wheels 255 are rotatably connected on both sides of the housing 251. The three limiting wheels 255 are equidistantly distributed, and their axes are parallel to the axis of the filter structure 253. The inner wall of the filter structure 253 contacts the outer surface of the three limiting wheels 255, and the center point connection line of the three limiting wheels 255 forms the rotation axis of the filter structure 253. Through the support and limiting effect of the three limiting wheels 255, the filter structure 253 can maintain stable coaxiality during rotation, avoiding the problem of unstable operation caused by eccentricity or vibration.

[0034] When working, 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 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 structure 253 and rotate under the drive of the filter structure 253. The rotation of the three limiting wheels 255 not only reduces the friction resistance of the filter structure 253 during rotation, but also further ensures the rotation stability and coaxiality of the filter structure 253.

[0035] Through the coordinated design of the second driving assembly 254 and the limiting wheel 255, the filter 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 wheel 255 effectively reduces the vibration and eccentricity of the filter structure 253, prolongs the service life of the equipment, and improves the overall operating reliability of the lawn mower.

[0036] In this embodiment, the limiting frame 22 includes a frame 221, a limiting piece 222 and two limiting arms 223. The frame 221 is fixedly connected to the housing 21 to form a stable support structure. There are multiple limiting pieces 222, and the plurality of limiting pieces 222 are equidistantly distributed on the frame 221, and a uniform limiting space is formed between adjacent limiting pieces 222. The two limiting arms 223 are respectively connected to the two ends of the frame 221, and are used to further fix the limiting frame 22 and enhance its structural strength.

[0037] The overall structure of the limiting frame 22 is comb-shaped, and this design plays a key role in the movement of the lawn mower. When the lawn mower moves, the grass stems will enter the limiting space of the limiting frame 22. The limiting pieces 222 limit and comb the grass stems through their equidistant arrangement, so that the grass stems are evenly distributed before cutting, avoiding uneven cutting due to accumulation or tilting 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 the cutting process, ensuring that the grass stems remain stable within the cutting range of the disc mower 23.

[0038] During the mowing process, the disc mower 23 rotates at 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 deviate or tilt significantly during cutting, thereby ensuring the flatness and consistency of the cutting surface. This design not only improves the neatness of mowing, but also significantly improves the aesthetics of the mowing effect.

[0039] Through the comb tooth structure design of the limiting frame 22, the disc mower can achieve efficient limiting and uniform distribution of grass stems, ensuring a balanced and consistent cutting effect of the disc mowing blade 23. In addition, the limiting frame 22 has a simple structure and is easy to install, and can adapt to different types of lawns and mowing requirements.

[0040] In this embodiment, the disc mower 23 includes a mounting plate 231, blades 232 and an annular frame 233. The mounting plate 231 is fixedly connected to the output shaft of the first drive assembly 24, and is used to receive the power of the first drive assembly 24 and drive the blades 232 to rotate. There are multiple blades 232, and the multiple blades 232 are evenly distributed on the edge of the mounting plate 231 and are fixedly connected to the mounting plate 231. The blades 232 are arranged at an angle, and the 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 plate 231, passes through the middle of the multiple blades 232, and is fixedly connected to the blades 232 to form an integral structure.

[0041] During operation, the first drive assembly 24 is started to drive the mounting plate 231 to rotate at high speed. The mounting plate 231 drives the blade 232 to rotate synchronously. The inclined design of the blade 232 enables it to contact the grass stem at an optimal angle during the rotation process, thereby achieving efficient cutting. The setting of the annular frame 233 not only enhances the structural strength of the blade 232, but also improves the stability of the blade 232 during high-speed rotation, thereby avoiding deformation or displacement of the blade 232 due to centrifugal force or vibration.

[0042] The lawn mower can achieve efficient and accurate cutting of grass stems through the optimized design of the disc mower 23. The inclined setting of the blade 232 and the reinforcement of the annular frame 233 significantly improve the cutting effect and the stability of the equipment operation.

[0043] 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. The upper surface of the housing 21 is provided with a mounting cavity 211 for accommodating the various components of the first driving assembly 24. The first motor 241 is fixedly mounted on the upper surface of the mounting cavity 211, and is used to provide power to drive the disc mower 23 to rotate. The driving pulley 242, the transmission pulley 243, the first driven pulley 244, 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 mounting cavity 211 to form a compact transmission system.

[0044] The output end of the first motor 241 is fixedly connected to the driving pulley 242, and is used to drive the driving pulley 242 to rotate. The driving 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 driving pulley 243 and rotates synchronously with the driving 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 is in contact with the second transmission belt 249, and is used to adjust 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 mounting cavity 211 through bearings. The lower ends of the three driving shafts 247 are respectively fixedly connected to the three disc-type mowers 23, and are used to drive the disc-type mowers 23 to rotate.

[0045] 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 driving pulley 243 to rotate through the first transmission belt 248, and the driving 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, thereby realizing 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 disc-type mowers 23 to rotate synchronously to complete the cutting of grass stems.

[0046] Through the design of the first drive assembly 24, the lawn mower can achieve synchronous driving of multiple disc mowing blades 23, ensuring the efficiency and consistency of mowing operations. The setting of the tensioning assembly 246 further improves the stability and reliability of the transmission system, reduces the risk of the transmission belt loosening or slipping, and prolongs the service life of the equipment.

[0047] In this embodiment, 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 mounted in the mounting cavity 211 through a bearing, and is used to support the tensioning assembly 246 and realize its rotation function. One end of the tensioning arm 2463 is rotatably mounted in the mounting cavity 211 through a hinged manner, 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 rotate freely 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 tension so that the tensioning arm 2463 drives the tensioning wheel 2464 to contact the second transmission belt 249.

[0048] Specifically, a certain distance is maintained between the rotating shaft 2461 and the second transmission belt 249, and the tension spring 2462 pulls the tension arm 2463 toward the rotating shaft 2461 through its elastic tension. Under the tension of the tension spring 2462, the tension arm 2463 drives the tension wheel 2464 to approach the second transmission belt 249 until the tension wheel 2464 contacts the second transmission belt 249 and applies a certain pressure. The contact between the tension 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.

[0049] 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 assembly 246 automatically adjusts the position of the tensioning wheel 2464 through the elastic tension of the tension spring 2462, so that the tensioning wheel 2464 always keeps in contact with the second transmission belt 249 and applies appropriate tension to the second transmission belt 249. This design not only improves the reliability of the transmission system, but also reduces power loss or equipment failure caused by loose transmission belts.

[0050] In this embodiment, a mounting arm 212 is fixedly connected to the side of the housing 21, which is used to achieve a 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 each mounting arm 212 is fixedly connected to a sleeve 213. The sleeve 213 is fixed to the mounting arm 212 by welding or bolting to form a stable supporting 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 achieving the lifting movement of the mowing mechanism 2.

[0051] 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 slide freely in the sleeve 213 while reducing friction resistance. In order to further reduce friction and wear during sliding, the inner wall of the sleeve 213 can be coated with lubricating material or installed with sliding bearings to improve sliding smoothness and service life.

[0052] When working, 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 motion trajectory during the lifting process to avoid 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 mowing requirements.

[0053] 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, and is used to support the mowing mechanism 2 and realize its lifting movement. The second mounting seat 32 is fixedly connected to the lower surface of the mounting frame 1, and is used to fix the base portion of the lifting assembly 3. The electric push rod 35 is fixedly mounted on the second mounting seat 32, and is used to provide power to drive the movement of the lifting assembly 3.

[0054] The second mounting seat 32 is provided with a second slide groove 321, and a sliding sheet 322 is slidably installed in the second slide groove 321. The output end of the electric push rod 35 is connected to the sliding sheet 322, and is used to drive the sliding sheet 322 to slide in the second slide groove 321. The first mounting seat 31 is provided with a first slide groove 311, and is used to achieve the sliding connection between the first arm 33 and the second arm 34. One end of the first arm 33 is hinged to the second mounting seat 32, and the other end is slidably connected to the first slide groove 311. One end of the second arm 34 is hinged to the sliding sheet 322, and the other end is slidably connected to the first slide groove 311.

[0055] When working, the electric push rod 35 is started, and the output end of the electric push rod 35 pushes or pulls the sliding piece 322 to slide in the second sliding groove 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, and the second arm 34 drives the first arm 33 to rotate around the hinge point between it and the second mounting seat 32 through the hinge point. At this time, the first mounting seat 31 moves closer to the second mounting seat 32 under the joint action of the second arm 34 and the first arm 33, thereby driving the mowing mechanism 2 to move upward.

[0056] When the sliding piece 322 moves toward the direction close to the electric push rod 35, the sliding piece 322 drives the second arm 34 to move in the opposite direction, and the second arm 34 pulls the first arm 33 through the hinge point to rotate around the hinge point between the second arm 33 and the second mounting seat 32. At this time, the first mounting seat 31 moves away from the second mounting seat 32 under the joint action of the second arm 34 and the first arm 33, thereby driving the mowing mechanism 2 to move downward.

[0057] 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 different lawn mowing requirements. The driving method of the electric push rod 35 is simple and reliable, which can ensure the stability and accuracy 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 motion trajectory during the lifting process.

[0058] In this embodiment, a connection seat 12 is fixedly connected to the mounting frame 1, which is used to connect the lawn mower to a traction device (such as a tractor or other agricultural equipment). The connection seat 12 is fixed to the front end or rear end of the mounting frame 1 by welding or bolting, and the specific position is designed according to the connection requirements of the traction device. The structure of the connection seat 12 usually includes one or more connection holes, which are used to cooperate with the hook or connection pin of the traction device to ensure that the lawn mower can be firmly connected to the traction device.

[0059] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A disc mower, characterized in that: include: A mounting frame (1), a mowing mechanism (2), two lifting assemblies (3) and four running wheels (4); the mounting frame (1) is a rectangular frame, and four guide shafts (11) are provided on the lower surface of the mounting frame (1), and the lower ends of the four guide shafts (11) are respectively connected to the four running wheels (4); the mowing mechanism (2) is slidably connected to the four guide shafts (11), and the two lifting assemblies (3) are connected between the mounting frame (1) and the mowing mechanism (2) and are used to drive the mowing mechanism (2) to perform lifting movement relative to the mounting frame (1); The mowing mechanism (2) comprises a housing (21), a limiting frame (22), a disc mowing blade (23) and a first driving assembly (24); the housing (21) is slidably connected to the four guide shafts (11); the first driving assembly (24) is arranged on the upper surface of the housing (21); the disc mowing blade (23) is installed on the lower surface of the housing (21); the disc mowing blade (23) is connected to the first driving assembly (24); the limiting frame (22) is fixedly installed on the lower surface of the housing (21); and the disc mowing blade (23) is located on the upper surface of the limiting frame (22).

2. The disc mower according to claim 1, characterized in that: The mowing mechanism (2) further comprises a cleaning assembly (25), the cleaning assembly (25) comprising 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 casing (21) and the limiting frame (22); the filter structure (253) is cylindrical; the filter structure (253) is rotatably connected to the housing (251); the fan (252) is 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 disc mower according to claim 2, characterized in that: The second driving assembly (254) comprises a second motor (2541), a gear ring (2542) and a gear (2543); the second motor (2541) is mounted on the housing (251), the gear ring (2542) is sleeved on the filter screen structure (253), and the gear (2543) is meshingly connected with the gear ring (2542); Three limiting wheels (255) are rotatably connected to both sides of the cover shell (251), the three limiting wheels (255) are equidistantly distributed, 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 disc mower according to claim 1, characterized in that The limiting frame (22) comprises a frame (221), a limiting piece (222) and two limiting arms (223); the frame (221) is fixedly connected to the housing (21); there are a plurality of limiting pieces (222); the plurality of limiting pieces (222) are equidistantly distributed on the frame (221); a limiting space is formed between adjacent limiting pieces (222); and the two limiting arms (223) are connected to the frame (221).

5. The disc mower according to claim 1, characterized in that: The disc mower (23) comprises a mounting disc (231), blades (232) and an annular frame (233); the mounting disc (231) is connected to the mounting disc (231) at the first drive assembly (24); the number of blades (232) is multiple, and the multiple blades (232) are fixedly connected to the mounting disc (231); the blades (232) are arranged in an inclined manner; 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).

6. The disc mower according to claim 1, characterized in that The first driving assembly (24) comprises 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); the first motor (241) is fixedly mounted 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); 49) 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 a 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) is in contact with 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-type mower (23).

7. The disc mower according to claim 6, characterized in that The tensioning assembly (246) comprises 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), and the other end of the tension spring (2462) is connected to the tensioning arm (2463), and the tensioning arm (2463) is acted upon by the tension of the tension spring (2462) to drive the tensioning wheel (2464) to contact the second transmission belt (249).

8. The disc mower according to claim 1, characterized in that A mounting arm (212) is fixedly connected to the side of the housing (21), a sleeve (213) is fixedly connected to the mounting arm (212), and the guide shaft (11) passes through the sleeve (213) and is slidably connected to the sleeve (213).

9. The disc mower according to claim 8, characterized in that The lifting assembly (3) comprises 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), and the second mounting seat (32) is fixedly connected to the lower surface of the mounting frame (1); the electric push rod (35) is connected to the second mounting seat (32), and the second mounting seat (32) is provided with a second slide groove (321), and a sliding sheet (322) is slidably installed in the second slide groove (321). The output end of the electric push rod (35) is connected to the sliding plate (322) and is used to drive the sliding plate (322) to slide in the second sliding groove (321). The first mounting seat (31) is provided with a first sliding groove (311). One end of the first support arm (33) is hinged to the second mounting seat (32), and the other end of the first support arm (33) is slidably connected to the first sliding groove (311). One end of the second support arm (34) is hinged to the sliding plate (322), and the other end of the second support arm (34) is slidably connected to the first sliding groove (311).

10. The disc mower according to claim 1, characterized in that A connecting seat (12) is fixedly connected to the installation frame (1).

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