A trailed rotor rake

Abstract

The present application provides a traction type rotor rake, aiming at the existing technology, the turning is difficult, the gap between the elastic ruler is unstable, the cutting quality is poor, the operation width is small, the degree of automation is low and other shortcomings are improved, which mainly includes: rack, guide rail, sliding block, workbench lifting hydraulic cylinder, telescopic table, steel plate spring, universal wheel and rotor rake disc; The structure of steel plate spring plus universal wheel makes the rake more flexible in turning, and provides better control performance and steering performance, solving the problem of difficult turning. The hinged structure connected by the hydraulic cylinder can adjust the longitudinal width of the workbench. By optimizing the blade structure and arrangement, the design of the elastic tooth damping block is added, which further improves the ability of the elastic tooth blade to adapt to harsh terrain and prolongs the service life. According to different grassland conditions, the ground clearance of the elastic tooth can be adjusted to improve the operation convenience and efficiency.

Description

Technical Field

[0001] This invention belongs to the technical field of rotor-type hay rakes. Background Technology

[0002] Currently used rotary hay rakes mostly have two or four wheels with a large wheel spacing. This requires the hay rake to have a large turning angle and turning space. However, some hay rakes use wheels with a fixed angle, which can only achieve limited rotation. The hay rake passively turns by following the traction action of the tractor. However, the narrow field roads cannot provide a large turning space for the hay rake. Therefore, it is necessary to manually or mechanically adjust the position and angle multiple times to turn smoothly, making the turning process of the hay rake cumbersome and difficult to operate.

[0003] The rigid connection between the hay-raking mechanism and the ground-following mechanism leads to unstable clearance between the spring ruler and the ground when the ground is uneven or the hay density is high. This can result in incomplete hay raking, significant hay loss, severe impact on the soil, high pollution levels, and extremely high damage rates to the rake teeth. This significantly shortens the lifespan of the horizontal rotor and fails to guarantee hay cleanliness, leading to a high rate of missed hay removal. Traditional blades, due to their poor design or quality, often result in poor cutting quality, incomplete hay cutting, and the potential for leaving irregular hay residue. Furthermore, the limited number of rotors, often single or double, results in a narrow working width. Currently, some rotor-type hay rakes rely on friction with the ground for movement, resulting in insufficient power, low automation, and an inability to adapt to high-intensity work or dense grassland conditions, leading to poor operational efficiency. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies, such as difficulty in turning, unstable spring gap, poor cutting quality, small working width, and low degree of automation, and proposes an improvement: a traction rotor hay rake. The specific technical solution adopted is as follows:

[0005] A traction rotor hay rake mainly includes: a frame, guide rails, a slider, a hydraulic cylinder for lifting the worktable, a hydraulic cylinder for deforming the worktable, a worktable, a rotor hay rake disc, a telescopic table, a leaf spring, and casters;

[0006] The frame is mainly composed of crossbeams, longitudinal beams, and a traction beam. The longitudinal beams are located below the rear beams and are installed perpendicularly to the crossbeams. The longitudinal beams and crossbeams are fixed together by a support structure. The traction beams are connected to the longitudinal beams and are used to connect with the tractor for traction.

[0007] A guide rail is fixedly installed at each end of the crossbeam. The slider slides in the guide rail. The slider is connected to one end of the hydraulic cylinder for lifting the worktable. The other end of the hydraulic cylinder for lifting the worktable is installed on the crossbeam.

[0008] Two worktable deformation hydraulic cylinders are provided below the guide rail; the upper part of the two worktable deformation hydraulic cylinders is connected to the slider through a connecting column, and the lower part of the worktable deformation hydraulic cylinders is fixedly connected to the telescopic platform; the lower part of the telescopic platform is connected to the universal wheel through a steel leaf spring.

[0009] The workbench has a rhomboid structure with its ends connected by hinges. Two workbench deformation hydraulic cylinders are arranged along the diagonal of the rhombus and connected to the hinges at the ends. The workbench is connected to the rotor hay-raking disc A below the hinges.

[0010] Furthermore, the frame also includes a rear beam, and the crossbeam and the rear beam are welded vertically in the horizontal direction; a guide rail is installed at the end of the rear beam, a slider slides in the guide rail, the slider is connected to one end of the worktable lifting hydraulic cylinder, and the other end of the worktable lifting hydraulic cylinder is installed on the rear beam; the lower part of the guide rail is fixedly connected to the telescopic platform, the lower part of the telescopic platform is connected to the universal wheel through a steel leaf spring, and the upper part of the telescopic platform is connected to the rotor hay-raking disc B.

[0011] Furthermore, the rotor hay-raking disc A includes: a rotating shaft, a disc, a spring-tooth damping block, and spring-tooth blades; the rotating shaft is installed at the center of the disc, and the spring-tooth damping blocks are evenly distributed around the edge of the disc; the spring-tooth blades are composed of blades and connecting parts, the connecting parts are L-shaped, the upper end of the connecting parts is fixedly connected to the spring-tooth damping block, and multiple blades are evenly installed radially on the transverse part of the connecting parts.

[0012] Furthermore, the rotor hay-raking disc B includes: a disc and spring-tooth blades; the spring-tooth blades are installed below the disc, and multiple spring-tooth blades are evenly installed radially.

[0013] Furthermore, the support structure includes a front support beam and a rear support beam, which support and fix the crossbeam and longitudinal beam from the front and rear sides respectively; preferably, multiple reinforcing beams are also provided vertically connected between the crossbeam and the longitudinal beam.

[0014] Furthermore, the traction beam and the longitudinal beam are fixedly connected by a control console, and the bottom of the control console is connected to the casters by a leaf spring; the control console contains a drive motor and controller for the hydraulic cylinder;

[0015] Furthermore, a lower support beam is provided between the control console and the longitudinal beam to strengthen the support and fixation between the control console and the longitudinal beam.

[0016] Furthermore, the slider in the guide rail is connected to the hydraulic cylinder for lifting the worktable via a rotating shaft. When the hydraulic cylinder for lifting the worktable extends or retracts, the slider can move up and down along the guide rail, and the connection point with the slider can rotate.

[0017] Furthermore, a guide rail base is provided below the guide rail, and the upper part of the two worktable deformation hydraulic cylinders is fixedly connected to the hydraulic cylinder protection platform, with an installation gap left between the guide rail base and the hydraulic cylinder protection platform.

[0018] The beneficial effects of this invention are:

[0019] 1. By optimizing the steering system of the hay rake and adopting a structure of leaf springs and swivel wheels, the hay rake can turn more flexibly and provide better handling and maneuverability, thus solving the problem of difficult turning.

[0020] 2. The articulated structure with hydraulic cylinder connection allows for adjustment of the longitudinal width of the worktable.

[0021] 3. By optimizing the blade structure and arrangement, the cutting method is improved, ensuring the sharpness and stability of the blades. At the same time, the number and density of blades are increased to improve cutting quality. Furthermore, the addition of a spring-tooth damping block further enhances the ability of the spring-tooth blades to adapt to harsh terrain and extends their service life.

[0022] 4. By increasing the number of rake discs, the coverage area of ​​the rake can be expanded, improving work efficiency by reducing the time and workload required for each operation. Adopting a multi-wheel or multi-blade design increases the width of the rake, enabling it to cut a wider area in one go.

[0023] 5. The height of the worktable (i.e., the spring teeth) and the width of the worktable can be adjusted according to different grassland conditions to improve the ease of operation and efficiency. Attached Figure Description

[0024] Figure 1 Isometric drawing of a traction rotor hay rake;

[0025] Figure 2 Top view of a tractor-mounted rotor hay rake;

[0026] Figure 3 Partial structural diagram of the workbench;

[0027] Figure 4 Partial structural diagram of rotor hay-raking disk A;

[0028] Figure 5 Partial structural diagram of the guide rail slider section;

[0029] Figure 6 Partial sectional view of the guide rail slider section. Detailed Implementation

[0030] The technical solution of the invention will be further explained and described below in the form of specific embodiments.

[0031] Reference Figures 1-6This embodiment of a traction rotor hay rake mainly includes: a frame, a guide rail 12, a slider 13, a worktable lifting hydraulic cylinder 14, a worktable deformation hydraulic cylinder 17, a telescopic table 15, a worktable 9, a steel leaf spring 10, a universal wheel 11, and a rotor hay rake disc.

[0032] The frame is mainly composed of a crossbeam 1, a longitudinal beam 2, and a traction beam 3. The longitudinal beam 2 is installed perpendicularly to the crossbeam 1 and is fixed to the crossbeam 1 by a support structure. The traction beam 3 is connected to the longitudinal beam 2 and is used to connect to the tractor for traction.

[0033] A guide rail 12 is fixedly installed at each end of the crossbeam 1. The slider 13 slides in the guide rail 12. The slider 12 is connected to one end of the worktable lifting hydraulic cylinder 14. The other end of the worktable lifting hydraulic cylinder 14 is installed on the crossbeam 1.

[0034] Two worktable deformation hydraulic cylinders 17 are provided below the guide rail 12; the upper part of the two worktable deformation hydraulic cylinders 17 is connected to the slider 13 through the connecting column 18, and the lower part is fixedly connected to the telescopic platform 15; the lower part of the telescopic platform 15 is connected to the universal wheel 11 through the steel leaf spring 10. In this embodiment, a guide rail base 19 is provided below the guide rail 12, and the upper part of the two worktable deformation hydraulic cylinders 17 is fixedly connected to the hydraulic cylinder protection platform 20, with an installation gap left between the guide rail base 19 and the hydraulic cylinder protection platform 20.

[0035] The workbench 9 has a rhomboid structure, with its ends connected by hinges 16. Two workbench deformation hydraulic cylinders 17 are arranged along the diagonal of the rhombus and connected to the hinges 16 at the ends. The workbench 9 is connected to the rotor hay-raking disc A below the hinges 16.

[0036] The frame also includes a rear beam 4, and the crossbeam 1 and the rear beam 4 are welded vertically in the horizontal direction; a guide rail 12 is installed at the end of the rear beam 4, and a slider 13 slides in the guide rail 12. The slider 12 is connected to one end of the worktable lifting hydraulic cylinder 14, and the other end of the worktable lifting hydraulic cylinder 14 is installed on the rear beam 4; the lower part of the guide rail 12 is fixedly connected to the telescopic platform 15, and the lower part of the telescopic platform 15 is connected to the universal wheel 11 through the steel leaf spring 10. The upper part of the telescopic platform 15 is connected to the rotor hay-raking disc B.

[0037] The rotor hay-raking disc A includes: a rotating shaft 21, a disc 22, a spring-tooth damping block 23, and a spring-tooth blade 24; the rotating shaft 21 is installed at the center of the disc 22, and the spring-tooth damping block 23 is evenly distributed around the edge of the disc 22; the spring-tooth blade 24 is composed of a blade and a connecting part, the connecting part is L-shaped, the upper end of the connecting part is fixedly connected to the spring-tooth damping block 23, and multiple blades are evenly installed radially on the transverse part of the connecting part.

[0038] The rotor hay-raking disc B includes: a disc 22 and a toothed blade 24; the toothed blade 24 is installed below the disc 22, and multiple toothed blades 24 are evenly installed radially.

[0039] The support structure includes a front support beam 5 and a rear support beam 6, which support and fix the crossbeam 1 and the longitudinal beam 2 from the front and rear sides respectively; preferably, a plurality of reinforcing beams 7 are also provided vertically connected between the crossbeam 1 and the longitudinal beam 2.

[0040] The traction beam 3 and the longitudinal beam 2 are fixedly connected by the control console 25. The lower part of the control console 25 is connected to the caster wheel 11 by the leaf spring 10. The control console 25 contains a drive motor and controller for the hydraulic cylinder.

[0041] A lower support beam 8 is provided between the control console 25 and the longitudinal beam to strengthen the support and fixation between the control console and the longitudinal beam 2.

[0042] The slider 13 in the guide rail 12 is connected to the worktable lifting hydraulic cylinder 14 via a rotating shaft. When the worktable lifting hydraulic cylinder 14 extends and retracts, the slider 13 can move up and down along the guide rail 12, and the connection point with the slider 13 can rotate.

Claims

1. A traction-type rotor hay rake, characterized in that, The hay rake mainly includes: frame, guide rail, slider, hydraulic cylinder for lifting the worktable, hydraulic cylinder for deforming the worktable, worktable, rotor hay rake disc, telescopic table, leaf spring and casters; The frame is mainly composed of crossbeams, longitudinal beams, rear beams and traction beams. The longitudinal beams are located below the rear beams and are installed perpendicular to the crossbeams. The longitudinal beams and crossbeams are fixed together by a support structure. The traction beams are connected to the longitudinal beams and are used to connect with the tractor for traction. The crossbeams and rear beams are welded perpendicularly in the horizontal direction. A guide rail is fixedly installed at each end of the crossbeam. The slider slides in the guide rail. The slider is connected to one end of the hydraulic cylinder for lifting the worktable. The other end of the hydraulic cylinder for lifting the worktable is installed on the crossbeam. Two worktable deformation hydraulic cylinders are provided below the guide rail; the upper part of the two worktable deformation hydraulic cylinders is connected to the slider through a connecting column, and the lower part of the worktable deformation hydraulic cylinders is fixedly connected to the telescopic platform; the lower part of the telescopic platform is connected to the universal wheel through a steel leaf spring; The workbench has a rhomboid structure with its ends connected by hinges. Two workbench deformation hydraulic cylinders are arranged along the diagonal of the rhombus and connected to the hinges at the ends. The workbench is connected to the rotor hay-raking disc A below the hinge. A guide rail is installed at the end of the rear beam, and the slider slides in the guide rail. The slider is connected to one end of the worktable lifting hydraulic cylinder, and the other end of the worktable lifting hydraulic cylinder is installed on the rear beam. The lower part of the guide rail is fixedly connected to the telescopic platform. The lower part of the telescopic platform is connected to the universal wheel through a steel leaf spring, and the upper part of the telescopic platform is connected to the rotor hay-raking disc B. The rotor hay-raking disc A includes: a rotating shaft, a disc, a spring-tooth damping block, and spring-tooth blades; the rotating shaft is installed at the center of the disc, and the spring-tooth damping blocks are evenly distributed around the edge of the disc; the spring-tooth blades are composed of blades and connecting parts, the connecting parts are L-shaped, the upper end of the connecting parts is fixedly connected to the spring-tooth damping block, and multiple blades are evenly installed radially on the transverse part of the connecting parts.

2. The traction rotor hay rake according to claim 1, characterized in that, The rotor hay-raking disc B includes: a disc and spring-tooth blades; the spring-tooth blades are installed below the disc, and multiple spring-tooth blades are evenly installed radially.

3. The traction rotor hay rake according to claim 1, characterized in that, The supporting structure includes a front support beam and a rear support beam, which support and fix the crossbeam and longitudinal beam from the front and rear sides, respectively.

4. The traction rotor hay rake according to claim 3, characterized in that, Multiple reinforcing beams are vertically connected between the horizontal beams and the longitudinal beams.

5. The traction rotor hay rake according to claim 1, characterized in that, The traction beam and the longitudinal beam are fixedly connected by a control console, and the control console is connected to casters by leaf springs below; the control console contains a drive motor and controller for the hydraulic cylinder.

6. The traction rotor hay rake according to claim 5, characterized in that, A lower support beam is provided between the control console and the longitudinal beam to strengthen the support and fixation between the control console and the longitudinal beam.

7. The traction rotor hay rake according to claim 1, characterized in that, The slider in the guide rail is connected to the hydraulic cylinder for lifting the worktable via a rotating shaft. When the hydraulic cylinder for lifting the worktable extends or retracts, the slider can move up and down along the guide rail, and the connection point with the slider can rotate.

8. The traction rotor hay rake according to claim 1, characterized in that, A guide rail base is provided below the guide rail, and the upper part of the two worktable deformation hydraulic cylinders is fixedly connected to the hydraulic cylinder protection platform. An installation gap is left between the guide rail base and the hydraulic cylinder protection platform.

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