Light swing arm mower

Abstract

The utility model relates to the technical field of agricultural mechanical equipment, in particular to a light swing arm mower which comprises a mower body, an integrated mower cover, a roller, a hoe, a belt transmission system, a swing arm assembly, a hydraulic lifting device and a control protection mechanism, and the mower body serves as a bearing platform of the whole mower, adopts a high-strength structure and is connected with a swing arm through an integrated positioning plate. The accurate control of the mowing angle is realized; the hoe drives the cutter shaft to rotate at a high speed through the upper belt and the lower belt to conduct mowing and plowing operation, the periphery of the hoe is covered with the integrated hood, smashed grass is effectively prevented from splashing, forage is guided to be scattered towards the rear portion of the roller, and grass blocking is avoided. The roller uniformly disperses forage through an automatic aligning structure, the working efficiency is improved, the lifting oil cylinder can achieve dynamic adjustment of the height and angle of the mowing mechanism, the mowing machine adapts to working of different terrains, and the mowing machine is compact in structure and efficient in working, has good terrain adaptability and continuous working capacity and is suitable for various agricultural and greening scenes.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery and equipment technology, and in particular to a lightweight swing arm lawn mower. Background Technology

[0002] Existing lawn mowing equipment is widely used in agriculture, forestry, and roadside greening. Common lawn mowers mainly rely on tractors for power and use rotating blades to cut grass on the ground. However, existing technologies still have many shortcomings in practical applications, especially in terms of mowing efficiency, forage handling, safety, and the rationality of equipment structure. They are difficult to meet the needs of modern agriculture for efficient, environmentally friendly, and safe lawn mowing operations.

[0003] First, most existing lawn mowing equipment adopts a split structure design, and the connection between the transmission system, the blade assembly and the grass guiding device is not tight. Resonance or structural shaking can easily occur during the mowing process, affecting the stability of operation and the effect of grass spreading. Some equipment lacks a scientific grass guiding structure, and grass fragments are scattered and messy during the mowing process, which not only pollutes the environment, but also easily causes grass to block the working area, affecting the ability to work continuously.

[0004] Secondly, for work scenarios with large terrain undulations, existing equipment generally lacks dynamic adjustment capabilities. Although some products are equipped with lifting cylinders, the adjustment range is small, the control precision is low, and key supporting devices such as hydraulic locks and safety valves are lacking. Once an obstacle is encountered during operation or the hydraulic system pressure suddenly increases, the equipment is prone to instability or hydraulic runaway, posing a significant safety hazard.

[0005] In addition, traditional equipment often uses a simple connection method in the design of the swing arm structure, which cannot effectively position the swing arm angle. It is easy to deviate during operation, affecting the mowing angle and stability. The lack of structural reinforcement and lubrication protection measures also makes the equipment prone to problems such as swing arm loosening and lubrication failure during long-term use, affecting its service life.

[0006] In summary, existing lawnmowers still have significant shortcomings in terms of structural integration, mowing and forage processing efficiency, terrain adaptability, safety control systems, and arm stability. There is an urgent need for a new type of lawnmower that is compact, functionally complete, highly adaptable, and equipped with multiple safety protection mechanisms to improve operational efficiency, reduce energy consumption, and enhance operational stability. Utility Model Content

[0007] The purpose of this invention is to provide a lightweight swing arm lawnmower to solve the problems mentioned in the background art.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a lightweight swing-arm lawnmower, comprising a body, a drum, an integrated shroud, a hoe, a blade shaft, a swing arm, an integrated positioning plate, a body lifting cylinder, a safety valve, a hydraulic lock, and a speed control valve. The body is an integral load-bearing structure made of high-strength steel, used to support the transmission system, hydraulic system, and control components. The hoe is mounted on the blade shaft and driven to rotate by an upper belt and a lower belt. The integrated shroud is located around the hoe and adopts an integral molding structure, partially covering the hoe to prevent grass clippings from splashing and to guide the grass towards the drum. The drum is located at the rear of the machine. The unit is fixed by a roller mounting plate and automatically self-aligned by a spherical self-aligning bearing; one end of the swing arm is hinged to the machine body, and the connection part is equipped with an integrated positioning plate; the integrated positioning plate is a hollow structure with a central hole and two side positioning holes, and is fixed by bolts to achieve angle positioning and locking of the swing arm; one end of the machine body lifting cylinder is fixed to the outside of the machine body, and the other end is connected to the upper crescent plate welded part, which is used to realize the lifting and lowering of the mowing mechanism; the safety valve is installed on the suspension beam above the swing arm to realize overflow protection when the system pressure is abnormal; the hydraulic lock is used to maintain the cylinder pressure in the lifting state, and the speed regulating valve is used to control the return speed of the cylinder.

[0009] According to the above technical solution, the hoe blade has a multi-blade structure and rotates at high speed under the drive of the blade shaft to realize cutting and tilling operations. It is also equipped with a rubber mudguard to prevent grass clippings and mud from splashing into the transmission component area.

[0010] According to the above technical solution, the integrated cover is made of a material with high rigidity and low vibration, and a set gap is maintained between it and the hoe blade to prevent contact and collision.

[0011] According to the above technical solution, the roller is installed on the side of the lawnmower via a roller mounting plate, and automatic self-aligning is achieved using a spherical self-aligning bearing to maintain the optimal working angle of the roller during the mowing process.

[0012] According to the above technical solution, the opposite ends of the swing arm are provided with triangular welding areas to enhance the stability of the stress structure. The swing arm is also provided with an oil cup groove for the protection of the lubricating oil cup and the supply of lubrication.

[0013] According to the above technical solution, the body lifting cylinder is controlled by a hydraulic system to adjust the height of the mowing mechanism under different terrains, so as to adapt to the needs of different slope operations.

[0014] According to the above technical solution, the hydraulic lock maintains the cylinder pressure when the lawnmower is stopped or stationary, preventing the mowing mechanism from sliding down unexpectedly and improving operational safety.

[0015] According to the above technical solution, the machine body is connected to various functional components such as rollers, hoes, and hydraulic systems through standardized connection methods such as welding, bolts, and pins, forming an integrated unit.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model, by setting an integrated machine cover, an adjustable angle swing arm structure, a roller spreading system, a hydraulic lifting mechanism, and multiple hydraulic control and safety protection devices, ensures the high efficiency of grass cutting operations while realizing the orderly guidance and discharge of grass, significantly reducing the problems of grass blockage and poor grass cutting, and improving the continuous operation capability of the equipment.

[0017] Specifically, the integrated hood structure effectively covers the hoe blades and guides the grass to be scattered in a specific direction, preventing grass clippings from splashing and polluting the environment, while also preventing grass from sticking to the rollers and causing accumulation. The roller structure adopts an automatic self-aligning installation method, which can adapt to the scattering needs under different working postures. The integrated positioning plate, together with the swing arm structure, enables precise control of the mowing angle, ensuring the stability of the mowing range. The lifting cylinder and hydraulic lock work together to adjust the height and angle of the mowing mechanism under different slopes, improving terrain adaptability. The safety valve and speed control valve are linked to ensure pressure relief protection of the hydraulic system under abnormal pressure and smooth adjustment during operation, enhancing the safety and reliability of the entire machine.

[0018] In summary, this utility model has a reasonable structure, stable operation, and high efficiency, and is particularly suitable for agricultural and greening operations with complex terrain and high requirements for forage processing, and has good prospects for promotion and application. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of a lightweight swing arm lawnmower proposed in this utility model;

[0021] Figure 2 This is a side view of a lightweight swing arm lawnmower proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of another angle of the lightweight swing arm lawnmower proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the roller and its components in a lightweight swing arm lawnmower proposed in this utility model;

[0024] Figure 5 This is a schematic diagram of the swing arm structure in a lightweight swing arm lawnmower proposed in this utility model;

[0025] Figure 6 This is a schematic diagram of the upper and lower belt structure in a lightweight swing arm lawnmower proposed in this utility model;

[0026] Figure 7 This is a schematic diagram of an integrated positioning plate structure in a lightweight swing arm lawnmower proposed in this utility model;

[0027] Figure 8 This is a schematic diagram of the upper moon plate welded assembly structure of a lightweight swing arm lawnmower proposed in this utility model.

[0028] In the diagram: 1. Roller, 11. Roller mounting plate, 12. Spherical self-aligning bearing, 2. Integrated machine cover, 3. Machine body, 4. Safety valve, 5. Machine body lifting cylinder, 6. Hydraulic lock, 7. Swing arm, 71. Triangular welding area, 72. Oil cup groove, 8. Speed ​​control valve, 9. Integrated positioning plate, 10. Hoe, 101. Cutter shaft, 13. Upper belt, 14. Lower belt, 15. Rubber mudguard, 16. Upper crescent plate welded assembly. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example:

[0031] Reference Figure 1-8A lightweight swing-arm lawnmower includes a body 3 and an integrated cover 2. The body 3 serves as the basic load-bearing structure of the entire device, made of high-strength steel and fixed to the base by welding and high-strength bolts. It effectively supports all transmission, hydraulic, and control components, ensuring good working performance and more environmentally friendly fuel consumption. The integrated cover 2 is located around the blade 10 and is made of a material with high rigidity and low vibration. Its overall structure adopts an integrated design, partially covering the blade 10. This prevents grass clippings from flying randomly and allows the cut grass clippings to be thrown backwards towards the drum 1 in a predetermined direction, thereby eliminating grass clogging in the working area and preventing grass from adhering to the drum surface and accumulating, ensuring long-term continuous operation. The drum 1 is located at the rear of the body 3, and its outer side is fixed to the side of the lawnmower by a drum mounting plate 11. It achieves automatic self-alignment with the help of a spherical self-aligning bearing 12, ensuring that the drum maintains the optimal working angle during the mowing process. The hoe 10 is mounted on the blade shaft 101 and driven by a belt drive system consisting of an upper belt 13 and a lower belt 14. When the hoe 10 rotates at high speed, it cuts and tills the grass and directly disperses some of the grass. At the same time, a rubber mudguard 15 is installed on the outside of the hoe 10 and blade shaft assembly to block mud and grass fragments splashed during operation, ensuring the cleanliness and normal operation of the transmission components. One end of the swing arm 7 is connected to the machine body 3. An integrated positioning plate 9 is provided at the connection between the machine body 3 and the swing arm 7. Its structure is a hollow plate with a central hole for fitting a large pin shaft. Positioning pin holes are opened on both sides and it is fixed to the machine body frame with bolts to achieve precise locking of the swing arm and ensure that the swing arm stably reaches the predetermined swing angle during operation. The opposite ends of the swing arm 7 are provided with a triangular welding area 71 to improve the stress stability. At the same time, an oil cup groove 72 is designed to protect the lubricating oil cup and ensure the normal supply of lubricating oil.

[0032] To enable dynamic adjustment of the work platform, this embodiment is equipped with a body lifting cylinder 5. One end of the cylinder is fixedly installed on the outside of the body 3, and the other end is connected to the upper crescent plate welded part 16. The hydraulic action enables the body or mowing mechanism to operate at different angles and slopes. During the lifting and lowering process, the hydraulic lock 6 plays a safety pressure-maintaining role to prevent hydraulic runaway.

[0033] Safety valve 4 is installed on the suspension beam above swing arm 7. When the lifting cylinder of the machine body encounters an obstacle during operation, causing the system pressure to rise abnormally, safety valve 4 will automatically open to achieve overflow unloading and provide necessary safety protection. At the same time, speed control valve 8 is set on the hydraulic pipeline to regulate the hydraulic flow, thereby controlling the lifting and lowering speed.

[0034] In this embodiment, standardized connection structures are used between the components. For example, the machine body 3 serves as an integral fixed platform and is tightly connected to the hydraulic system, transmission system, and mowing components through welding, bolts, and pins to form a coordinated mowing system. This system not only has good working effect but also significantly reduces fuel consumption, achieving environmentally friendly operation. At the same time, the integrated machine cover 2 ensures that the mowed grass can be thrown behind the drum 1, preventing grass blockage and maintaining continuous operation.

[0035] When using the lawnmower, it is first connected to the tractor through the front connecting mechanism. The tractor's PTO output shaft is connected to the transmission system of this device and the power output is started. At the same time, the hydraulic system of the tractor is connected to the hydraulic control system of this machine through the hydraulic oil pipe to ensure that the actuators such as the body lifting cylinder 5 have driving force. After starting the hydraulic system, the mowing mechanism is adjusted to a suitable working height or angle through the body lifting cylinder 5 to adapt to different slopes and terrains.

[0036] With power output, the PTO drives the upper belt 13 and lower belt 14 to rotate the cutter shaft 101 at high speed, thereby driving the hoe blade 10 to cut and till the grass. During operation, the swing angle of the swing arm 7 is controlled by the integrated positioning plate 9 located below it. The integrated positioning plate 9 is fixed to the machine body 3 by bolts. The hollow structure of the plate has a large pin shaft, and the positioning holes in the middle and on both sides ensure that the swing arm is stable at the specified angle to prevent deviation or shaking. If an obstacle is encountered or the resistance suddenly increases during the operation of the equipment, the system pressure will rise, and the safety valve 4 will automatically open to realize the overflow unloading protection system. At the same time, the hydraulic lock 6 maintains the cylinder pressure during lifting or lowering to prevent the mowing mechanism from accidentally sliding down and improve the safety of operation. After the operation is completed, the speed control valve 8 slowly controls the return of the cylinder to return the mowing mechanism to the starting position. After the equipment stops running.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lightweight swing-arm lawnmower, comprising a body (3), a drum (1), an integrated hood (2), a hoe (10), a blade shaft (101), a swing arm (7), an integrated positioning plate (9), a body lifting cylinder (5), a safety valve (4), a hydraulic lock (6), and a speed control valve (8), characterized in that: The fuselage (3) is an integral load-bearing structure made of high-strength steel, used to support the transmission system, hydraulic system and control components; The hoe (10) is mounted on the blade shaft (101) and is driven to rotate by the upper belt (13) and the lower belt (14); The integrated cover (2) is located around the hoe (10) and adopts an integrated molding structure. It partially covers the hoe (10) to prevent grass fragments from splashing and to guide the grass to be thrown towards the roller (1). The roller (1) is located at the rear of the machine body (3), and is fixed by the roller mounting plate (11) and automatically aligned by the spherical self-aligning bearing (12); One end of the swing arm (7) is hinged to the body (3), and the connection part is provided with an integrated positioning plate (9); The integrated positioning plate (9) has a hollow structure with a central hole and two side positioning holes. It is fixed with bolts to achieve angular positioning and locking of the swing arm (7). One end of the body lifting cylinder (5) is fixed to the outside of the body (3), and the other end is connected to the upper moon plate welded part (16) to realize the lifting and lowering of the mowing mechanism; The safety valve (4) is installed on the suspension beam above the swing arm (7) to provide overflow protection when the system pressure is abnormal; The hydraulic lock (6) is used to maintain the cylinder pressure during the lifting state. The speed control valve (8) is used to control the return speed of the oil cylinder.

2. A light weight swing arm lawnmower as claimed in claim 1 wherein: The hoe (10) has a multi-blade structure and rotates at high speed under the drive of the blade shaft (101) to achieve cutting and tilling operations. It is also equipped with a rubber mudguard (15) to prevent grass clippings and mud from splashing into the transmission component area.

3. A light weight swing arm lawnmower as claimed in claim 1 wherein: The integrated cover (2) is made of a material with high rigidity and low vibration, and maintains a set gap with the hoe (10) to prevent contact and collision.

4. A light weight swing arm lawnmower as claimed in claim 1 wherein: The roller (1) is mounted on the side of the lawnmower via a roller mounting plate (11) and automatically adjusts itself using a spherical self-aligning bearing (12) to maintain the optimal working angle of the roller (1) during the mowing process.

5. A light weight swing arm lawnmower as claimed in claim 1, characterized in that: The opposite ends of the swing arm (7) are provided with triangular welding areas (71) to enhance the stability of the stress structure. The swing arm (7) is also provided with an oil cup groove (72) for the protection of the lubricating oil cup and the supply of lubrication.

6. A light weight swing arm lawnmower as claimed in claim 1, characterized in that: The lifting cylinder (5) of the machine body is controlled by a hydraulic system to adjust the height of the mowing mechanism under different terrains in order to adapt to the needs of different slope operations.

7. A light weight swing arm lawnmower as claimed in claim 1, characterized in that: The hydraulic lock (6) maintains the cylinder pressure when the lawnmower is stopped or stationary, preventing the mowing mechanism from sliding down unexpectedly and improving operational safety.

8. A light weight swing arm lawnmower as claimed in claim 1 characterised in that: The machine body (3) is connected to various functional components such as the drum (1), hoe (10), and hydraulic system through standardized connection methods such as welding, bolts, and pins, forming an integrated unit.

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