Vertical overturning type hay raking device

Abstract

The utility model relates to the technical field of agricultural machinery, and discloses a vertical overturning type hay raking device which comprises a lifting frame, positioning mounting frames are arranged at the left end and the right end of the lifting frame respectively, and transmission shafts are arranged at the upper ends of the two positioning mounting frames and rotationally connected to the lifting frame in the vertical direction. A hay raking mechanism with the two ends connected to the positioning installation frames respectively is arranged between the two positioning installation frames, and the left end and the right end of the hay raking mechanism are parallel to connecting rotating shafts of the positioning installation frames. According to the grass raking mechanism, the grass raking direction can be rapidly switched, the positioning mounting frames are arranged at the two ends of the lifting frame and rotationally connected with the lifting frame through the transmission shaft, the driving mechanism is matched to control the transmission shaft to rotate synchronously, the positioning mounting frames at the two ends of the grass raking mechanism are rotationally adjusted by 180 degrees, and therefore the grass raking direction is further flexibly switched; compared with a hay raking mechanism of a fixed structure, the operation adaptability and efficiency of the lifting bar type hay raking machine are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically to a vertical flipping hay rake. Background Technology

[0002] In agricultural production, the pallet hay rake is a key piece of equipment for forage collection. The performance of its hay-raking device directly affects the efficiency and quality of the operation. Currently, most pallet hay rakes on the market use a fixed hay-raking mechanism. However, this type of fixed hay-raking mechanism has obvious limitations in actual use. If the hay-raking direction is fixed, it is difficult to flexibly adjust according to different operating scenarios (such as terrain undulations, differences in pasture size and shape) and forage distribution (such as density and growth direction). In particular, because the hay-raking direction cannot be changed, it cannot meet diverse operating needs, which greatly limits the applicability and operating effect of the hay rake, resulting in low operating efficiency, incomplete forage collection, or poor quality.

[0003] Our company has developed a patented "Multi-functional Carrying Rake" with patent number 2024232779530. This rake includes a traction rotating support and a traction beam fixedly connected to the traction rotating support at an inclined angle. A connecting support is provided at the other end of the traction beam. Telescopic frames that extend and retract in the left and right directions are respectively provided at the left and right ends of the connecting support. A positioning support is provided at the outer end of the telescopic beam, and a swing support is hinged to the positioning support. A first hydraulic cylinder for controlling the swing of the swing support is provided on the positioning support. A lifting support is provided on the swing support. A linkage lifting adjustment mechanism connected to the lifting support is provided at the front and rear ends of the swing support. The frame is equipped with a hay-raking mechanism. This mechanism includes hexagonal star disks rotatably connected to the front and rear ends of a lifting support. Each hexagonal star disk has a movable ball head at one of its six corners. Hay-raking connecting rods connect corresponding movable ball heads between two hexagonal star disks. The two ends of each hay-raking connecting rod are connected to the movable ball heads via ball head sleeves. Each hay-raking connecting rod has multiple hay-raking teeth spaced apart. A hydraulic motor controlling the rotation of the hexagonal star disks is also installed at one end of the lifting support. However, this hay-raking mechanism is still a fixed structure. After the swing support rotates at a large angle, it cannot adapt to the need for efficient hay turning and drying operations by reversing the direction of the hay at large angles on both sides. In this case, the hay-raking direction needs to be opposite to the initial direction to achieve efficient turning and drying.

[0004] In order to improve the operational adaptability and efficiency of the raking hay rake, there is an urgent need for a hay rake device that can change the direction of hay rakeing in order to overcome the above-mentioned defects in the existing technology. Utility Model Content

[0005] The purpose of this invention is to provide a vertical flip-type hay rake that can quickly switch the rake direction to address the above problems.

[0006] To achieve the above objectives, this utility model discloses a vertically tilting hay rake, including a lifting frame. Its structural features include positioning mounting frames at both ends of the lifting frame, and drive shafts at the upper ends of the two positioning mounting frames. The drive shafts are rotatably connected to the lifting frame in a vertical direction. A drive mechanism controlling the synchronous rotation of the two drive shafts is provided on the upper part of the lifting frame. A hay rake mechanism with its two ends connected to the positioning mounting frames is provided between the two positioning mounting frames. The left and right ends of the hay rake mechanism are parallel to the connecting shafts of the positioning mounting frames.

[0007] With the above structure, by setting positioning mounting brackets at both ends of the lifting frame and connecting them to the lifting frame via a drive shaft, and by controlling the drive shaft to rotate synchronously with the drive mechanism, the positioning mounting brackets at both ends of the hay-raking mechanism can be rotated 180°, thereby further flexibly switching the hay-raking direction. This can effectively adapt to different operating scenarios and hay distribution. Compared with a fixed structure hay-raking mechanism, it greatly improves the adaptability and efficiency of the pallet-type hay rake and expands its application range.

[0008] Preferably, the lifting frame includes a crossbeam and positioning beams respectively disposed at the left and right ends of the crossbeam and extending forward. A reinforcing beam connects the two positioning beams, and the drive mechanism is mounted on the reinforcing beam. By adopting a combined structure of crossbeam, positioning beam, and reinforcing beam, the reinforcing beam provides a stable mounting position for the drive mechanism, enhancing the overall structural strength and stability of the lifting frame, ensuring stable operation of the drive mechanism, and thus ensuring the reliable operation of the hay-raking device.

[0009] Preferably, the positioning mounting frame includes a connecting plate rotatably connected to the lifting frame at one end and a swing plate extending downward from the other end of the connecting plate. The structural design of the connecting plate and the swing plate of the positioning mounting frame facilitates rotatable connection with the lifting frame and connection with the hay-raking mechanism, providing a basic structural support for the subsequent flipping action of the hay-raking mechanism.

[0010] Preferably, the positioning mounting frame is an L-shaped plate integrally bent from a strip. The connecting plate is horizontally positioned, and a drive shaft is located on the upper surface of the end furthest from the swing plate. The swing plate is parallel to the drive shaft. The connecting shafts on the two positioning mounting frames are located near the lower end of the swing plate. The mounting surfaces of the two positioning mounting frames for mounting the connecting shafts are opposite to each other, and the outer ends of the connecting shafts on the two positioning mounting frames extend in opposite directions. The L-shaped positioning mounting frame, integrally bent, has a simple structure and is easy to manufacture. It is also more adaptable to the installation of hay-raking mechanisms, making the mounting plate of the hay-raking mechanism move more stably and reliably when rotating with the positioning mounting frame, accurately achieving the switching of different hay-raking directions. The special arrangement of the connecting shafts facilitates the installation of existing hay-raking mechanisms, ensuring that the two mounting surfaces of the mounting plate for mounting the hay-raking rods are opposite to each other and parallel.

[0011] Preferably, one end of the drive shaft is vertically fixed to the upper surface of the positioning mounting frame, and the other end of the drive shaft passes through the lower surface of the positioning beam of the lifting frame and extends out of the upper surface of the positioning beam. This through-beam installation method ensures a stable connection between the drive shaft and the positioning mounting frame, and facilitates power transmission in conjunction with the drive mechanism, enabling the positioning mounting frame and the hay-raking mechanism to rotate as expected.

[0012] Preferably, the drive mechanism includes a positioning seat mounted on the lifting frame, and a reducer mounted on the positioning seat. The reducer has a drive rod positioned horizontally, and worm gears are respectively mounted on the left and right ends of the drive rod. Worm wheels meshing with the worm gears are mounted on the transmission shafts on the left and right sides of the lifting frame, and the worm wheels rotate coaxially with the transmission shafts. By using a combination of worm gear and reducer transmission in the drive mechanism, the reducer can achieve speed reduction and torque increase while controlling the rotation of the drive rod. The worm gear transmission has advantages such as a large transmission ratio, smooth transmission, and self-locking capability, and can precisely control the synchronous rotation of the two transmission shafts, thereby controlling the swing angles of the two positioning mounting frames to be the same. This, in turn, cooperates with the hay-raking mechanism to achieve the switching of the hay-raking direction.

[0013] Preferably, the hay-raking mechanism includes mounting plates rotatably connected to two positioning mounting frames. Each mounting plate has multiple movable ball heads. A hay-raking connecting rod connects each pair of corresponding movable ball heads on the two mounting plates. Both ends of the hay-raking connecting rod are connected to the movable ball heads via ball head sleeves. The hay-raking connecting rod has multiple spring teeth. Through the combined structure of the mounting plates, movable ball heads, hay-raking connecting rods, and spring teeth, the spring teeth can flexibly adapt to different terrains and pasture conditions, effectively raking pasture and improving hay-raking quality and efficiency.

[0014] Preferably, a hydraulic motor is installed on one of the positioning mounting brackets, and the drive shaft of the hydraulic motor is poweredly connected to the connecting shaft of the mounting plate to the positioning mounting bracket. The hydraulic motor provides power for the rotation of the mounting plate and the hay-raking mechanism.

[0015] Preferably, the lifting frame is equipped with depth-limiting wheels positioned vertically at both ends. These wheels limit the depth of the hay-raking device, preventing excessive raking that could damage the hay or insufficient raking that would result in incomplete hay removal, thus ensuring a uniform raking depth.

[0016] In summary, the beneficial effects of this utility model are as follows: This utility model can quickly switch the raking direction. By setting positioning mounting frames at both ends of the lifting frame and connecting them to the lifting frame via a transmission shaft, and by using a drive mechanism to control the synchronous rotation of the transmission shaft, the positioning mounting frames at both ends of the raking mechanism can achieve a 180° rotation adjustment, thereby further flexibly switching the raking direction. This can effectively adapt to different operating scenarios and forage distribution. Compared with a fixed structure raking mechanism, it greatly improves the adaptability and efficiency of the pallet-type raking machine and expands its application range. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 for Figure 1 The state diagram for reverse hay raking is shown in the image.

[0019] Figure 3 This is a schematic diagram of the rear view structure of this utility model.

[0020] In the diagram: 1. Lifting frame; 2. Positioning mounting frame; 3. Drive shaft; 4. Drive mechanism; 5. Hay-raking mechanism; 6. Connecting shaft; 7. Crossbeam; 8. Positioning beam; 9. Reinforcing beam; 10. Connecting plate; 11. Swinging plate; 12. Positioning seat; 13. Reducer; 14. Drive rod; 15. Worm gear; 16. Worm wheel; 17. Mounting plate; 18. Movable ball head; 19. Hay-raking connecting rod; 20. Spring tooth; 21. Hydraulic motor; 22. Depth limiting wheel. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0022] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0025] like Figures 1-3 As shown, this utility model includes a lifting frame 1, with positioning mounting brackets 2 at both the left and right ends of the lifting frame 1. A drive shaft 3 is provided at the upper end of each positioning mounting bracket 2, and the drive shaft 3 is rotatably connected to the lifting frame 1 in a vertical direction. A drive mechanism 4 for controlling the synchronous rotation of the two drive shafts 3 is also provided at the upper part of the lifting frame 1. In the design, the lifting frame 1 includes a crossbeam 7 and positioning beams 8 respectively located at the left and right ends of the crossbeam 7 and extending forward. A reinforcing beam 9 connects the two positioning beams 8. The drive mechanism 4 is mounted on the reinforcing beam 9. In manufacturing, the positioning beam 8 includes an inclined beam body arranged obliquely upwards and a connecting beam body arranged horizontally. The connecting beam body is used to install the positioning mounting brackets. The frame 2, and the connection method and structure of the multiple beams are known structures, will not be described in detail here. The lifting frame 1 adopts a combination structure of crossbeam 7, positioning beam 8 and reinforcing beam 9. The reinforcing beam 9 can provide a stable installation position for the drive mechanism 4, ensuring the stable operation of the drive mechanism 4, and thus ensuring the reliable operation of the hay raking device. Usually, depth limiting wheels 22 are also provided on the lifting frame 1 near the left and right ends, respectively, which are set in the vertical direction. The depth limiting wheels 22 can limit the downward depth of the hay raking device, avoiding damage to the hay due to excessive raking or incomplete raking due to insufficient raking, and ensuring that the raking depth is uniform. The structure and installation method of the depth limiting wheel 22 are known structures, and will not be described in detail here.

[0026] like Figures 1-3As shown, the aforementioned positioning mounting frame 2 includes a connecting plate 10 rotatably connected to the lifting frame 1 at one end and a swing plate 11 located at the other end of the connecting plate 10 and extending downward. In design, the positioning mounting frame 2 is typically an L-shaped plate integrally bent from a strip. The connecting plate 10 is horizontally positioned, and a drive shaft 3 is located on its upper surface at the end furthest from the swing plate 11. The swing plate 11 is parallel to the drive shaft 3. Thus, through the L... The positioning mounting frame 2 of the molded plate is integrally bent and formed, with a simple structure and convenient manufacturing. It is also more compatible with the mounting tray of the hay-raking mechanism 5, making the movement of the mounting tray 17 of the hay-raking mechanism 5 more stable and reliable when rotating with the positioning mounting frame 2, and accurately achieving the switching of different hay-raking directions. During manufacturing, one end of the aforementioned drive shaft 3 is vertically fixed to the upper end surface of the connecting plate 10, while the other end of the drive shaft 3 passes through the lower end surface of the positioning beam 8 of the lifting frame 1 and extends out of the upper end surface of the positioning beam 8, thus rotatably connecting to the connecting beam of the positioning beam 8. This installation method of the drive shaft 3 penetrating the positioning beam 8 ensures a stable connection between the drive shaft 3 and the positioning mounting frame 2, and facilitates the transmission of power with the drive mechanism 4, allowing the positioning mounting frame 2 and the hay-raking mechanism 5 to rotate as expected.

[0027] like Figures 1-3 As shown, the aforementioned drive mechanism 4 includes a positioning seat 12 mounted on the lifting frame 1, and a reducer 13 mounted on the positioning seat 12. A drive rod 14, arranged horizontally, is mounted on the reducer 13. In the design, worm gears 15 are respectively mounted on the left and right ends of the drive rod 14. Worm wheels 16, meshing with the worm gears 15, are mounted on the transmission shafts 3 on the left and right sides of the lifting frame 1. The worm wheels 16 rotate coaxially with the transmission shafts 3. During manufacturing, the worm wheels 16 are typically mounted on the body of the transmission shaft 3 located above the positioning beam 8. The drive rod 14 has a spline that passes through the mounting port of the reducer 13 and is connected to the reducer 13 via the spline. Thus, the drive mechanism... Structure 4 employs a combination of worm gear 16 and reducer 13 for transmission. Reducer 13 can reduce speed and increase torque, and control the rotation of drive rod 14. Worm gear 16 transmission has advantages such as large transmission ratio, smooth transmission, and self-locking, and can accurately control the synchronous rotation of the two transmission shafts 3, thereby controlling the swing angle of the two positioning mounting frames 2 to be the same, and then cooperating with the hay-raking mechanism 5 to realize the switching of hay-raking direction of hay-raking mechanism 5. In order to make the rotation of drive rod 14 more stable, multiple support bushings that cooperate with drive rod 14 can be set on lifting frame 1. The structure of reducer 13 is a known structure and will not be described in detail here. This reducer 13 is used to drive drive rod 14 to rotate along the central axis.

[0028] like Figures 1-3As shown, a hay-raking mechanism 5 is provided between the two positioning mounting frames 2, with both ends connected to the positioning mounting frames 2 respectively. The left and right ends of the hay-raking mechanism 5 are parallel to the connecting shaft 6 of the positioning mounting frame 2. In the design, the hay-raking mechanism 5 includes mounting plates 17 rotatably connected to the two positioning mounting frames 2 respectively. Multiple movable ball heads 18 are provided on the mounting plates 17. A hay-raking connecting rod 19 is connected between the two corresponding movable ball heads 18 on the two mounting plates 17. The two ends of the hay-raking connecting rod 19 are connected to the movable ball heads 18 by ball head sleeves. Multiple spring teeth 20 are provided on the hay-raking connecting rod 19. A hydraulic motor 21 is provided on one of the positioning mounting frames 2. The drive shaft of the hydraulic motor 21 is poweredly connected to the connecting shaft 6 of the mounting plate 17 and the positioning mounting frame 2. The hydraulic motor 21 provides power for the rotation of the mounting plate 17 and the hay-raking mechanism 5. The hay-raking mechanism 5, through its mounting plate 17, movable ball head 18, hay-raking connecting rod 19, and spring tooth 20, allows the spring tooth 20 to flexibly adapt to different terrains and pasture conditions, effectively raking pasture and improving raking quality and efficiency. The structure of this hay-raking mechanism 5 has been disclosed in the patent documents in the background art and will not be repeated here. During manufacturing and installation, the connecting shaft 6 on the two positioning mounting frames 2 is positioned near the lower end of the swing plate 11, and the connecting shaft 6 is positioned near the transmission... On the side wall of the central axis of the moving shaft 3, the mounting surfaces of the two positioning mounting brackets 2 for mounting the connecting shaft 6 are arranged opposite to each other, and the outer ends of the connecting shaft 6 on the two positioning mounting brackets 2 extend in opposite directions. This special arrangement of the connecting shaft 6 facilitates the installation of the existing hay-raking mechanism 5, thereby ensuring that the two mounting surfaces of the mounting plate 17 for mounting the hay-raking connecting rod 19 are arranged opposite to each other and parallel to each other. When the hay-raking mechanism 5 is installed on the two positioning mounting brackets 2, the two mounting plates 17 are arranged opposite to each other and parallel to each other. Multiple hay-raking connecting rods 19 are connected to the two mounting plates 17 through movable ball heads 18, such as... Figure 1 As shown, the hay-raking direction is currently to the left. When it is necessary to switch the hay-raking direction, the drive rod 14 is rotated by the reducer 13, thereby causing the worm gears 15 at both ends of the drive rod 14 to engage with the worm wheels 16 on the transmission shaft 3. This drives the transmission shaft 3 to rotate synchronously with the two positioning mounting brackets 2. Figure 2 In the state shown, the raking direction is to the right. When the initial raking direction is restored, the reducer 13 controls the drive rod 14 to rotate in the opposite direction.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A vertical tilting hay rake, comprising a lifting frame (1), characterized in that: The lifting frame (1) is provided with positioning mounting brackets (2) at its left and right ends respectively. The upper ends of the two positioning mounting brackets (2) are provided with drive shafts (3). The drive shafts (3) are rotatably connected to the lifting frame (1) in the vertical direction. The upper part of the lifting frame (1) is provided with a drive mechanism (4) to control the synchronous rotation of the two drive shafts (3). Between the two positioning mounting brackets (2), there is a hay-raking mechanism (5) with its two ends connected to the positioning mounting brackets (2) respectively. The left and right ends of the hay-raking mechanism (5) are parallel to the connecting shafts (6) of the positioning mounting brackets (2).

2. The vertical flipping hay rake as described in claim 1, characterized in that: The lifting frame (1) includes a crossbeam (7) and positioning beams (8) respectively set at the left and right ends of the crossbeam (7) and extending forward. A reinforcing beam (9) is connected between the two positioning beams (8), and the driving mechanism (4) is installed on the reinforcing beam (9).

3. The vertical flipping hay rake as described in claim 1, characterized in that: The positioning mounting frame (2) includes a connecting plate (10) rotatably connected to the lifting frame (1) at one end and a swing plate (11) located at the other end of the connecting plate (10) and extending downward.

4. The vertical flipping hay rake as described in claim 3, characterized in that: The positioning mounting bracket (2) is an L-shaped plate formed by integral bending of a strip plate. The connecting plate (10) is arranged in the horizontal direction and a drive shaft (3) is provided on the upper surface of the end away from the swing plate (11). The swing plate (11) is parallel to the drive shaft (3). The connecting shaft (6) on the two positioning mounting brackets (2) is located near the lower end of the swing plate (11). The mounting surfaces of the two positioning mounting brackets (2) for mounting the connecting shaft (6) are arranged opposite to each other and the outer ends of the connecting shaft (6) on the two positioning mounting brackets (2) extend in opposite directions.

5. The vertical flipping hay rake as described in claim 1, characterized in that: One end of the drive shaft (3) is vertically fixed to the upper surface of the positioning mounting frame (2), and the other end of the drive shaft (3) passes through the lower surface of the positioning beam (8) of the lifting frame (1) and extends out of the upper surface of the positioning beam (8).

6. The vertical flipping hay rake as described in claim 1, characterized in that: The drive mechanism (4) includes a positioning seat (12) on the lifting frame (1) and a reducer (13) on the positioning seat (12). A drive rod (14) is provided on the reducer (13) in the horizontal direction. Worm teeth (15) are provided on the left and right ends of the drive rod (14). Worm wheels (16) that mesh with the worm teeth (15) are provided on the transmission shafts (3) on the left and right sides of the lifting frame (1). The worm wheels (16) rotate coaxially with the transmission shafts (3).

7. The vertical flipping hay rake as described in claim 1, characterized in that: The hay-raking mechanism (5) includes mounting plates (17) rotatably connected to two positioning mounting frames (2). Multiple movable ball heads (18) are provided on the mounting plates (17). A hay-raking connecting rod (19) is connected between the two corresponding movable ball heads (18) on the two mounting plates (17). The two ends of the hay-raking connecting rod (19) are connected to the movable ball heads (18) by ball head sleeves. Multiple spring teeth (20) are provided on the hay-raking connecting rod (19).

8. The vertical flipping hay rake as described in claim 7, characterized in that: A hydraulic motor (21) is provided on one side of the positioning mounting bracket (2), and the drive shaft of the hydraulic motor (21) is connected to the mounting plate (17) and the connecting shaft (6) of the positioning mounting bracket (2).

9. The vertical flipping hay rake as described in claim 1, characterized in that: The lifting frame (1) is provided with depth-limiting wheels (22) arranged vertically at the left and right ends respectively.

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