Pasture raking and tedding equipment

By designing a hay rake buffer protection structure, hay discharge components, and a suspended traction structure, the hay rake and drying equipment has solved the problems of easy damage to the rake teeth, excessive dust, and difficulty in adjusting the working width, thus achieving a long service life, low dust, and high efficiency.

CN121926056APending Publication Date: 2026-04-28LIAONING ZHONGXIN KEMAI AGRICULTURAL MACHINERY MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-18
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

When traditional hay rakes are used in the field, the rake teeth are easily damaged by impact, generate a lot of dust, and the hay is easily scattered and tangled. In addition, it is difficult to adjust the working width.

Method used

A hay rake and drying device was designed, which includes a hay-raking buffer protection structure, a hay-drying component, and a suspension traction structure. The buffer protection structure absorbs the impact force, the hay-drying component blocks dust, and the suspension structure flexibly adjusts the working width.

Benefits of technology

Extend equipment lifespan, reduce dust generation, improve operational smoothness and equipment versatility, and enhance flexibility and reliability in confined spaces.

✦ Generated by Eureka AI based on patent content.

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Abstract

The pasture raking and tedding equipment comprises a portal frame, a hydraulic oil tank is installed at the center of the top end of the portal frame, a pair of execution structures is installed at the left end and the right end of the portal frame, the execution structures are each provided with four pasture raking buffer protection structures, and the front side of the portal frame is connected with a suspension traction structure; the invention relates to the technical field of agricultural machinery, and has the beneficial effects that through a raking buffer protection structure, impact force generated instantly when raking elastic teeth make contact with the ground can be effectively absorbed, the deformation and damage risks of the elastic teeth are remarkably reduced, the service life of equipment is prolonged, and the working efficiency is improved. According to the grass raking device, the grass discharging assembly composed of the upper baffle and the side blocking grass discharging plate is arranged on the grass raking supporting frame, flying dust generated during operation can be effectively shielded and prevented from being diffused, meanwhile, the side blocking grass discharging plate can guide forage grass to be collected in a centralized mode, the forage grass is prevented from flying around or being wound and knotted in the device, and the quality and smoothness of grass raking operation are improved.
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Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a hay rake and drying device. Background Technology

[0002] Traditional hay rakes experience significant impact when the rake teeth come into contact with the soil during field operations, which can easily cause deformation or damage to the teeth, affecting the equipment's lifespan and operational efficiency. Furthermore, the rake process generates a large amount of dust, obstructing the operator's view and the environment. Additionally, the rake hay can easily fly around or become tangled on different parts of the equipment, causing knots and hindering smooth operation. Traditional equipment also struggles to quickly adjust to varying work width requirements. Therefore, this project was developed to address these issues through in-depth research. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems by designing a hay rake and drying device. This invention addresses the issues of existing traditional hay rakes, where the rake teeth are subjected to significant impact force upon instantaneous contact with the soil surface, easily leading to deformation or damage of the teeth, affecting the equipment's lifespan and operational efficiency. Furthermore, the rake operation generates a large amount of dust, obstructing the operator's view and the environment. Additionally, the raked hay tends to fly erratically or become tangled on different parts of the equipment, causing knots and affecting operational smoothness. Finally, traditional equipment struggles to quickly adjust to different working width requirements.

[0004] The technical solution of the present invention to achieve the above objectives is as follows: a hay rake and drying device, including a gantry frame, a hydraulic oil tank installed at the center of the top of the gantry frame, a pair of actuators installed at the left and right ends of the gantry frame, and four hay rake buffer protection structures installed on each pair of actuators; a suspension traction structure is connected to the front of the gantry frame.

[0005] Each of the aforementioned actuators includes: a hydraulic telescopic cylinder, a deployment support frame, a mounting base, two moving wheels, a hay-raking support frame, a drive disc, a driven disc, four transmission connecting rods, and a hay-discharging assembly;

[0006] The hydraulic telescopic cylinder is installed at the top of the gantry support and connected to the hydraulic oil tank. The unfolding support frame is hinged to the gantry and connected to the drive end of the hydraulic telescopic cylinder. The mounting base is installed at the bottom of the gantry. Both of the moving wheels are installed inside the mounting base through bearings. The hay-raking support frame is fixedly connected to the unfolding support frame. The center of the driving disc is movably installed on the right side of the hay-raking support frame through a bearing. The center of the driven disc is movably installed on the left side of the hay-raking support frame through a bearing. The two ends of the four transmission connecting rods are eccentrically connected to the driving disc and the driven disc, respectively. The hay-discharging assembly is connected to the hay-raking support frame.

[0007] Preferably, each of the four hay-raking buffer protection structures includes: a mounting frame, a buffer movable groove, a pair of first buffer connecting rods, a pair of buffer springs, a pair of guide limiting blocks, a pair of second buffer connecting rods, a hay-raking bracket, and several hay-raking spring teeth;

[0008] The mounting bracket is installed on the front side of the transmission connecting rod. The buffer movable groove is opened at the bottom end of the mounting bracket. A pair of first buffer connecting rods are respectively movably embedded in the left and right side walls of the mounting bracket. A pair of buffer springs are respectively fitted onto the pair of first buffer connecting rods. A pair of guide limiting blocks are respectively installed on the left and right sides inside the mounting bracket and are respectively fitted onto the pair of first buffer connecting rods. A pair of second buffer connecting rods are respectively hinged to the pair of first buffer connecting rods. The hay rake bracket is movably embedded in the mounting bracket through the buffer groove, and its top two sides are respectively connected to the pair of second buffer connecting rods. A plurality of hay rake spring teeth are evenly arrayed and installed at the bottom end of the hay rake bracket.

[0009] Preferably, the suspension traction structure includes: a transition bracket, a suspension frame, and a steering coupling;

[0010] The adapter bracket is installed on the front side of the gantry frame, the suspension frame is connected to the adapter bracket, and the steering connector is hinged to the suspension frame via a rotating shaft.

[0011] Preferably, the grass removal assembly includes: a fixed connecting plate, an upper baffle, and a side baffle grass removal plate;

[0012] The fixed connecting plate is installed on the top of the hay rake support frame, the upper baffle is installed on the top of the fixed connecting plate, and the side baffle hay rake plate is connected to the upper baffle.

[0013] Preferably, the diameter of both the driving disk and the driven disk is 1050mm.

[0014] Preferably, a limit stop is installed at the movable end of the first buffer connecting rod.

[0015] Preferably, a reinforcing connecting plate is provided at the connection between the adapter bracket and the suspension bracket.

[0016] Preferably, a support rod is installed at the bottom end of the suspension frame.

[0017] Preferably, a support plate is installed at the bottom end of the support rod.

[0018] Preferably, both the upper baffle and the side baffle grass-draining plate are made of stainless steel.

[0019] A hay rake and drying device manufactured using the technical solution of this invention, through a hay-raking buffer protection structure, can effectively absorb the impact force generated when the hay rake teeth contact the ground, significantly reducing the deformation and damage risk of the teeth and extending the service life of the equipment. By installing a hay-draining assembly consisting of an upper baffle and side hay-draining plates on the hay-raking support frame, dust generated during operation can be effectively blocked, preventing dust spread. Simultaneously, the side hay-draining plates guide the hay to be collected centrally, preventing hay from flying around or becoming tangled in the equipment, improving the quality and smoothness of the hay-raking operation. The device also features a hydraulic telescopic cylinder that works in conjunction with the unfolding support frame. The combined mechanism allows for angle expansion and adjustment of the actuators at both ends of the gantry, flexibly adapting to hay-raking operations of varying widths and improving the equipment's versatility. The steering connector in the suspension traction structure is hinged to the suspension frame via a pivot shaft, providing a maximum steering angle of 120 degrees during traction work. This makes the equipment more flexible and convenient to turn in fields or confined spaces. The reinforced connecting plate increases the rigid connection between the adapter bracket and the suspension frame. Additionally, a support rod with a support plate is installed at the bottom of the suspension frame, allowing for stable placement after the equipment is disconnected from the power machinery, thus improving the equipment's reliability and ease of storage. Attached Figure Description

[0020] Figure 1 This is a front-view perspective three-dimensional structural diagram of a hay rake and drying device according to the present invention;

[0021] Figure 2 This is a first bottom-view three-dimensional structural diagram of a hay rake and drying device according to the present invention;

[0022] Figure 3 This is a second bottom-view three-dimensional structural diagram of a hay rake and drying device according to the present invention;

[0023] Figure 4 This is a schematic diagram of the left side of the hay rake and drying device described in this invention;

[0024] Figure 5 This is a front-view perspective three-dimensional structural diagram of the execution structure of the hay rake and drying device of the present invention;

[0025] Figure 6This is a schematic diagram of the main structure of the execution structure of the hay rake and drying device of the present invention;

[0026] Figure 7 This is a front-view perspective three-dimensional structural diagram of the hay-raking buffer protection structure of the hay-raking and drying equipment of the present invention;

[0027] Figure 8 This is a front view schematic diagram of the hay-raking buffer protection structure of a hay-raking and drying device according to the present invention;

[0028] Figure 9 This is a partially enlarged cross-sectional view of the hay-raking buffer protection structure of the hay-raking and drying equipment of the present invention;

[0029] Figure 10 This is a front-view three-dimensional structural diagram of the hay-drying component of a hay-raking and drying device according to the present invention.

[0030] In the diagram: 1. Gantry frame, 2. Hydraulic oil tank, 3. Hydraulic telescopic cylinder, 4. Deployment support frame, 5. Mounting base, 6. Moving wheel, 7. Hay-raking support frame, 8. Driving disc, 9. Driven disc, 10. Transmission connecting rod, 11. Mounting frame, 12. Buffer movable groove, 13. First buffer connecting rod, 14. Buffer spring, 15. Guide limit block, 16. Second buffer connecting rod, 17. Hay-raking bracket, 18. Hay-raking spring tooth, 19. Adapter bracket, 20. Suspension frame, 21. Steering connector, 22. Fixed connecting plate, 23. Upper baffle, 24. Side baffle hay-raking plate, 25. Limiting block, 26. Reinforcing connecting plate, 27. Support rod, 28. Support disc. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figures 1 to 10 As shown, a hay rake and drying device is used.

[0032] Example: A hay rake and drying device includes a gantry frame 1, a hydraulic oil tank 2 installed at the center of the top of the gantry frame 1, a pair of actuators installed at the left and right ends of the gantry frame 1, and four hay rake buffer protection structures installed on each pair of actuators. A suspension traction structure is connected to the front of the gantry frame 1.

[0033] Each pair of actuators includes: a hydraulic telescopic cylinder 3, an unfolding support frame 4, a mounting base 5, two moving wheels 6, a hay-raking support frame 7, an active disc 8, a driven disc 9, four transmission connecting rods 10, and a hay-raking assembly;

[0034] The hydraulic telescopic cylinder 3 is installed at the top of the gantry support and connected to the hydraulic oil tank 2. The unfolding support frame 4 is hinged to the gantry frame 1 and connected to the drive end of the hydraulic telescopic cylinder 3. The mounting base 5 is installed at the bottom of the gantry frame 1. Both moving wheels 6 are installed inside the mounting base 5 through bearings. The hay-raking support frame 7 is fixedly connected to the unfolding support frame 4. The center of the driving disc 8 is movably installed on the right side of the hay-raking support frame 7 through bearings. The center of the driven disc 9 is movably installed on the left side of the hay-raking support frame 7 through bearings. The two ends of the four transmission connecting rods 10 are eccentrically connected to the driving disc 8 and the driven disc 9, respectively. The hay-discharging assembly is connected to the hay-raking support frame 7.

[0035] It should be noted that before using this equipment, the corresponding external power machinery needs to be connected to the suspension traction structure of this equipment to provide traction and power output, enabling the equipment to perform hay raking operations. The movable wheels 6 allow the equipment to move in conjunction with the external power machinery. Furthermore, under the drive of the external power, the hydraulic telescopic cylinder 3 can adjust the angle between the unfolding support frames 4 installed at both ends of the gantry frame 1 to accommodate hay raking operations of varying widths. While the external power machinery is tractioning this equipment forward, it simultaneously drives the active disc 8 and the driven disc 9 to rotate. With the four transmission connecting rods 10 eccentrically installed between the active plate 8 and the driven plate 9, the rotational motion of the active plate 8 and the driven plate 9 is converted into linear reciprocating motion, realizing the sequential up-and-down reciprocating motion of the four transmission connecting rods 10, and driving the hay-raking buffer protection structure to work, and performing hay-raking operations in the working environment. At the same time, compared with traditional hay-raking equipment, the hay-raking component can partially block the dust generated during the hay-raking process, preventing a large amount of dust, and ensuring that the hay can be smoothly and centrally collected after passing through the hay-raking component, preventing the hay from flying around due to the raking action, and preventing the hay from getting tangled and knotted in the equipment.

[0036] Specifically, each of the four hay-raking buffer protection structures includes: a mounting frame 11, a buffer movable groove 12, a pair of first buffer connecting rods 13, a pair of buffer springs 14, a pair of guide limit blocks 15, a pair of second buffer connecting rods 16, a hay-raking bracket 17, and several hay-raking spring teeth 18.

[0037] Mounting bracket 11 is installed on the front side of transmission connecting rod 10. Buffer movable groove 12 is opened at the bottom end of mounting bracket 11. A pair of first buffer connecting rods 13 are movably embedded in the left and right side walls of mounting bracket 11. A pair of buffer springs 14 are respectively fitted onto the pair of first buffer connecting rods 13. A pair of guide limiting blocks 15 are respectively installed on the left and right sides inside mounting bracket 11 and respectively fitted onto the pair of first buffer connecting rods 13. A pair of second buffer connecting rods 16 are respectively hinged to the pair of first buffer connecting rods 13. Rake support 17 is movably embedded in mounting bracket 11 through buffer groove, and its top two sides are respectively connected to the pair of second buffer connecting rods 16. Several rake spring teeth 18 are arrayed and installed at the bottom end of rake support 17.

[0038] It should be noted that traditional raking twigs can deform and be damaged due to the instantaneous force of contact with the soil surface when raking hay. In this device, the mounting frame 11 and transmission connecting rod 10 are installed together. Driven by the rotation of the driving disc 8 and driven disc 9, the transmission connecting rod 10 can reciprocate up and down, driving the mounting frame 11 to move in tandem, causing the raking twigs 18 to contact the soil surface. During this contact, when the raking twigs 18 experience instantaneous contact with the soil surface, the buffer spring 14 absorbs the force of the instantaneous contact, causing the raking support 17 to retract within the buffer groove 12 of the mounting frame 11, thereby protecting the raking twigs. 18. After the force generated by the instantaneous contact is absorbed, the rake tooth 18 remains in working condition. At this time, it can continue to rake the grass on the soil surface under the continued drive of the active disc 8 and the driven disc 9. When the rake tooth 18 finishes the current rake work and leaves the ground soil working environment, the buffer spring 14 continues to provide the rebound force. Under the connection of the first connecting rod and the second connecting rod, the rake support frame 7 leaves the buffer movable groove 12 and expands outward to support it. This makes the buffer movable groove 12 empty, providing a buffer foundation for the next rake operation. It waits for the next reciprocating motion to drive the rake tooth 18 to work and can continue to perform the buffering and energy absorption function.

[0039] Specifically, the suspension traction structure includes: adapter bracket 19, suspension frame 20, and steering coupling 21;

[0040] The adapter bracket 19 is installed on the front side of the gantry frame 1, the suspension frame 20 is connected to the adapter bracket 19, and the steering connector 21 is hinged to the suspension frame 20 through a rotating shaft.

[0041] It should be noted that this equipment can be connected to an external power machine via the steering connector 21 to obtain a power source. It can also be connected to the gantry 1 via the suspension frame 20 and the adapter bracket 19 to provide connection rigidity for the equipment. The steering connector 21 can provide a maximum steering angle of 120 degrees when the external power machine is traction-driven, so that the equipment can provide the necessary basic conditions for turning in narrow spaces during operation.

[0042] Specifically, the grass removal assembly includes: a fixed connecting plate 22, an upper baffle 23, and a side baffle grass removal plate 24;

[0043] The fixed connecting plate 22 is installed on the top of the hay rake support frame 7, the upper baffle 23 is installed on the top of the fixed connecting plate 22, and the side baffle hay rake plate 24 is connected to the upper baffle 23.

[0044] It should be noted that the hay-clearing assembly is installed on the outside of the hay-raking support frame 7, which can cover the hay-raking buffer protection structure. When the hay-raking tines 18 are raking, the upper baffle 23 can block the dust generated during the hay-raking operation above it, effectively preventing the dust from continuing to fly upward. The side baffle hay-clearing plate 24 can block the dust on the working surface of the hay-raking tines 18 over a large area, preventing the dust from moving forward and affecting the working vision of the power traction source in front. It can also concentrate and guide the hay raked by the hay-raking tines 18, while preventing the hay being raked from getting tangled in different layers of the hay-raking tines 18 during the flying process, thus improving the hay-raking effect.

[0045] Specifically, both the active disk 8 and the driven disk 9 have a diameter of 1050mm. The large size of the active disk 8 and the driven disk 9 allows for a larger reciprocating motion space when the mounting frame 11 drives the hay rake teeth 18 to reciprocate, thus avoiding interference between the hay rake teeth 18 of each layer.

[0046] Specifically, a limit stop 25 is installed at the movable end of the first buffer connecting rod 13 to prevent the first buffer connecting rod 13 from over-displacement within the mounting frame 11 when the buffer spring 14 provides buffer protection, thereby avoiding damage to the straw-raking buffer protection structure.

[0047] Specifically, a reinforcing connecting plate 26 is provided at the connection between the adapter bracket 19 and the suspension bracket 20 to increase the rigid connection and provide rigid strength during operation, thereby increasing the service life of the equipment.

[0048] Specifically, a support rod 27 is installed at the bottom of the suspension frame 20. When the equipment is not in use, after being disconnected from the external power machinery, the equipment can be supported and placed by the support rod 27, so that the equipment is in a balanced position.

[0049] Specifically, a support plate 28 is installed at the bottom of the support rod 27, which, together with the support rod 27, can provide a large area of ​​ground contact for the equipment and provide stable support for the equipment.

[0050] Specifically, the upper baffle 23 and the side baffle grass discharge plate 24 are both made of stainless steel, which increases the service life and prevents the equipment from being corroded and damaged by the humid environment.

[0051] The above technical solutions only embody the preferred technical solutions of the present invention. Any modifications that may be made by those skilled in the art to certain parts thereof embody the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A hay rake and drying device, comprising a gantry frame (1), characterized in that, A hydraulic oil tank (2) is installed at the center of the top of the gantry (1). A pair of actuators are installed at the left and right ends of the gantry (1). Each pair of actuators is equipped with four hay-raking buffer protection structures. A suspension traction structure is connected to the front of the gantry (1). Each pair of the aforementioned actuators includes: a hydraulic telescopic cylinder (3), an unfolding support frame (4), a mounting base (5), two moving wheels (6), a hay-raking support frame (7), an active disc (8), a driven disc (9), four transmission connecting rods (10), and a hay-raking assembly; The hydraulic telescopic cylinder (3) is installed at the top of the gantry support and connected to the hydraulic oil tank (2). The unfolding support frame (4) is hinged to the gantry frame (1) and connected to the drive end of the hydraulic telescopic cylinder (3). The mounting base (5) is installed at the bottom of the gantry frame (1). The two moving wheels (6) are installed inside the mounting base (5) through bearings. The hay-raking support frame (7) is fixedly connected to the unfolding support frame (4). The center of the active disc (8) is movably installed on the right side of the hay-raking support frame (7) through bearings. The center of the driven disc (9) is movably installed on the left side of the hay-raking support frame (7) through bearings. The two ends of the four transmission connecting rods (10) are eccentrically connected to the active disc (8) and the driven disc (9) respectively. The hay-draining assembly is connected to the hay-raking support frame (7).

2. The hay rake and drying equipment according to claim 1, characterized in that, Each of the four hay-raking buffer protection structures includes: a mounting frame (11), a buffer movable groove (12), a pair of first buffer connecting rods (13), a pair of buffer springs (14), a pair of guide limit blocks (15), a pair of second buffer connecting rods (16), a hay-raking bracket (17), and several hay-raking spring teeth (18). The mounting bracket (11) is installed on the front side of the transmission connecting rod (10). The buffer movable groove (12) is opened at the bottom end of the mounting bracket (11). A pair of first buffer connecting rods (13) are respectively movably embedded in the left and right side walls of the mounting bracket (11). A pair of buffer springs (14) are respectively fitted onto a pair of first buffer connecting rods (13). A pair of guide limiting blocks (15) are respectively installed on the left and right sides inside the mounting bracket (11) and respectively fitted onto a pair of first buffer connecting rods (13). A pair of second buffer connecting rods (16) are respectively hinged to a pair of first buffer connecting rods (13). The hay rake bracket (17) is movably embedded in the mounting bracket (11) through the buffer groove, and its top two sides are respectively connected to a pair of second buffer connecting rods (16). A plurality of hay rake spring teeth (18) are arrayed and installed at the bottom end of the hay rake bracket (17).

3. The hay rake and drying equipment according to claim 1, characterized in that, The suspension traction structure includes: a transition bracket (19), a suspension frame (20), and a steering coupling (21). The adapter bracket (19) is installed on the front side of the gantry (1), the suspension bracket (20) is connected to the adapter bracket (19), and the steering connector (21) is hinged to the suspension bracket (20) through a rotating shaft.

4. The hay rake and drying equipment according to claim 1, characterized in that, The grass removal assembly includes: a fixed connecting plate (22), an upper baffle (23), and a side baffle grass removal plate (24); The fixed connecting plate (22) is installed on the top of the hay rake support frame (7), the upper baffle (23) is installed on the top of the fixed connecting plate (22), and the side baffle hay rake plate (24) is connected to the upper baffle (23).

5. The hay rake and drying equipment according to claim 1, characterized in that, The diameter of both the active disk (8) and the driven disk (9) is 1050 mm.

6. The hay rake and drying equipment according to claim 2, characterized in that, A limit stop (25) is installed on the movable end of the first buffer connecting rod (13).

7. The hay rake and drying equipment according to claim 3, characterized in that, A reinforcing connecting plate (26) is provided at the connection between the adapter bracket (19) and the suspension bracket (20).

8. The hay rake and drying equipment according to claim 3, characterized in that, The bottom end of the suspension frame (20) is equipped with a support rod (27).

9. A hay rake and drying device according to claim 8, characterized in that, A support plate (28) is installed at the bottom end of the support rod (27).

10. A hay rake and drying device according to claim 4, characterized in that, Both the upper baffle (23) and the side baffle grass-draining plate (24) are made of stainless steel.