Hay raking device of lifting bar type hay raking machine

Abstract

The utility model relates to the technical field of agricultural machinery, and discloses a raking device of a lifting bar type raking machine, which comprises a lifting frame body, positioning mounting frames are arranged at the left end and the right end of the lifting frame body, each positioning mounting frame comprises a connecting part frame body and an inclined part frame body which rotate with the lifting frame body, and the inclined part frame bodies on the two sides incline forwards and backwards. A hay raking mechanism is arranged between the two positioning installation frames, and the lifting frame body is provided with a locking device matched with the positioning installation frames. According to the device, the grass raking direction can be rapidly switched, the positioning installation frame with the two sides inclined relatively supports the grass raking mechanism, the positioning installation frame and the locking device form an angle-adjustable connecting structure, and 180-degree rotating adjustment and locking of the grass raking mechanism are achieved. And meanwhile, the raking connecting rod adopts a structure of a positioning pipe and a limiting pipe which are rotationally connected, and is locked through a limiting pin, so that the elastic teeth are always vertically downward. Compared with a traditional fixed structure, the innovative design has remarkable advantages in the aspects of operation adaptability and the like.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically to a hay-raking device for a pallet-type hay rake. Background Technology

[0002] In agricultural production, the pallet hay rake is a key piece of equipment for forage collection, and the performance of its raking mechanism directly affects the efficiency and quality of the operation. Currently, most pallet hay rakes on the market use fixed-structure raking mechanisms. In actual use, the raking direction of such mechanisms is often fixed, making it difficult to flexibly adjust according to different operating scenarios and forage distribution. Because existing raking mechanisms cannot change the raking direction, they cannot meet diverse operational needs, greatly limiting the scope of application and operational effectiveness of hay rakes.

[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. Connecting supports are provided at the front and rear ends of the swing support." The lifting and adjusting mechanism of the lifting support includes a hay-raking mechanism. This hay-raking mechanism comprises a hexagonal star disk rotatably connected to the front and rear ends of the lifting support. Each hexagonal star disk has a movable ball head at one of its six corners. A hay-raking connecting rod connects the corresponding movable ball heads of two hexagonal star disks. Both ends of the 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 disk is also located at one end of the lifting support. This hay-raking mechanism uses a fixed structure and cannot be matched with a hay-raking mechanism capable of large-angle reversal on both sides for drying operations.

[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 hay-raking device for a lift-type hay rake that can quickly switch the raking direction, addressing the above-mentioned problems.

[0006] To achieve the above objectives, this utility model discloses a hay-raking device for a pallet-type hay rake, comprising a lifting frame. Its structural feature is that positioning mounting frames are respectively provided at the left and right ends of the lifting frame. Each positioning mounting frame includes a connecting frame rotatably connected to the lifting frame. An inclined frame is provided at the end of the connecting frame away from the lifting frame. One side of the inclined frame on the left and right sides of the positioning mounting frame is inclined forward, and the other side is inclined backward. A hay-raking mechanism with its two ends connected to the positioning mounting frames is provided between the two positioning mounting frames. A locking device that cooperates with the positioning mounting frames is provided on the lifting frame.

[0007] With the above structure, the hay-raking mechanism is supported by a positioning mounting frame with two relatively inclined sides, and a locking device is used to form an adjustable angle connection structure, which realizes the 180° rotation adjustment of the hay-raking mechanism. This innovative design can quickly switch the hay-raking direction according to the operation requirements, and shows significant advantages in many aspects compared with the traditional fixed structure.

[0008] Preferably, the two ends of the hay-raking mechanism are respectively mounted on the inclined sections of the two positioning mounting frames at large angles. Insertion holes passing through the connecting frame are provided on the upper and lower sides of the connection between the connecting frame and the lifting frame, and these insertion holes cooperate with the locking device. By providing insertion holes on the upper and lower sides of the connection between the connecting frame and the lifting frame, and cooperating with the locking device, locking can be achieved after the positioning mounting frame has rotated 180°.

[0009] Preferably, the locking device is a detachable positioning pin, which is disposed on the lifting frame and passes horizontally through the lifting frame and extends into one of the insertion holes on the connecting frame. The horizontally inserted positioning pin enables quick locking / unlocking, simplifying the operation process and saving adjustment time.

[0010] 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 adjustable-angle spring teeth. These adjustable-angle spring teeth can adapt to the rotation angle of the positioning mounting frames, ensuring that the spring teeth always remain vertically downward.

[0011] Preferably, the hay-raking link includes a positioning tube for mounting the spring teeth, and a limiting tube fitted onto both ends of the positioning tube and coaxial with it. The positioning tube has multiple first positioning holes penetrating the tube body, and the limiting tube has multiple second positioning holes corresponding to the first positioning holes. The spring teeth are mounted on the positioning tube. A limiting pin, passing through the first and second positioning holes, is provided on the limiting tube near the end of the hay-raking link. By cooperating with the limiting pin and the first and second positioning holes, the positioning tube is locked onto the limiting tube to prevent relative rotation, thereby improving the stability of the hay-raking link during operation.

[0012] Preferably, the mounting plate is a hexagonal star plate, with movable ball heads provided on the six corners of the hexagonal star plate. The two hexagonal star plates are fitted together on the large-angle side of the positioning mounting frame, and the two hexagonal star plates are parallel to each other and located at the same horizontal height.

[0013] Preferably, one end of the limiting tube is provided with a ball head sleeve that matches the movable ball head, and the other end of the limiting tube is fitted onto the positioning tube and rotatably connected to the positioning tube. The limiting pin passes through the positioning tube body and the limiting tube body. The limiting tube and the positioning tube can rotate relative to each other, and in conjunction with the limiting pin, the angle of the spring tooth can be quickly adjusted.

[0014] Preferably, the spring tooth is fixed to the positioning tube in the vertical direction. By rotating the positioning tube and cooperating with the limiting pin, the direction of the spring tooth can be reversed by 180°.

[0015] In summary, the beneficial effects of this utility model are as follows: This utility model can quickly switch the raking direction. By using a positioning and mounting frame with two relatively inclined sides to support the raking mechanism, and in conjunction with a locking device to form an adjustable angle connection structure, the raking mechanism can be rotated and locked 180°. Furthermore, by setting the raking connecting rod as a rotating connection between the positioning tube and the limiting tube structure and locking it with a limiting pin, the spring teeth on the positioning tube can adapt to the rotation angle of the positioning and mounting frame, so that the spring teeth always remain vertically downward. This innovative design can quickly switch the raking direction according to the operational needs, and compared with the traditional fixed structure, it shows significant advantages in many aspects. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 for Figure 1 Diagram showing the state of the central positioning mounting bracket rotating 180° to achieve reverse hay raking;

[0018] Figure 3 This is a structural diagram showing the installation position of the locking device of this utility model;

[0019] Figure 4This is a schematic diagram of the structure of the hay-raking connecting rod of this utility model;

[0020] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0021] In the diagram: 1. Lifting frame; 2. Positioning mounting frame; 3. Connecting frame; 4. Inclined frame; 5. Hay-raking mechanism; 6. Locking device; 7. Insertion hole; 8. Mounting plate; 9. Movable ball head; 10. Hay-raking connecting rod; 11. Spring tooth; 12. Positioning tube; 13. Limiting tube; 14. First positioning hole; 15. Second positioning hole; 16. Limiting pin. Detailed Implementation

[0022] The specific embodiments of this utility model will be described in further 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 its scope.

[0023] 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.

[0024] 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.

[0025] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0026] like Figures 1-3As shown, this utility model includes a lifting frame 1, which is a frame composed of multiple support beams. It is usually composed of a frame with bent ends and multiple reinforcing beams connected to the rear of the bent frame. This structure is a known structure and will not be described in detail here. Positioning mounting frames 2 are respectively provided on the inner side walls of the left and right ends of the lifting frame 1. The positioning mounting frame 2 includes a connecting frame 3 that is rotatably connected to the lifting frame 1. An inclined frame 4 is provided on the end of the connecting frame 3 away from the lifting frame 1. In the design, one side of the inclined frame 4 on the left and right sides of the positioning mounting frame 2 is inclined forward, and the other side of the inclined frame 4 is inclined backward. At the same time, a locking device 6 that cooperates with the positioning mounting frame 2 is provided on the outer side walls of the left and right ends of the lifting frame 1. A hay-raking mechanism 5 with its two ends connected to the positioning mounting frame 2 is installed between the two positioning mounting frames 2.

[0027] like Figures 1-3 As shown, the two ends of the hay-raking mechanism 5 are respectively set on the end body of the inclined frame 4 on the large angle side of the two positioning mounting frames 2. The upper and lower sides of the connection between the connecting frame 3 and the lifting frame 1 are respectively provided with insertion holes 7 passing through the connecting frame 3. The two insertion holes 7 are symmetrical to each other along the plane of the rotating connecting shaft. In the design, the insertion hole 7 cooperates with the locking device 6. The locking device 6 is a detachable positioning pin. Of course, it can be fixed with fixing bolts. Usually, the locking device 6 extends from the outer wall of the lifting frame 1 through the lifting frame 1 and into one of the insertion holes 7 on the connecting frame 3. The locking device 6 is installed above the hinge axis between the lifting frame 1 and the positioning mounting frame 2. In this way, the horizontally inserted positioning pin can achieve quick locking / unlocking, thereby achieving locking after the positioning mounting frame 2 rotates 180°, thus simplifying the operation process and saving adjustment time. Of course, after the positioning mounting frame 2 rotates 180°, the tilt direction of the two positioning mounting frames 2 is opposite to the initial state.

[0028] like Figure 1 , Figure 2As shown, in a preferred embodiment of the present invention, the hay-raking mechanism 5 includes mounting discs 8 rotatably connected to two positioning mounting frames 2. Multiple movable ball heads 9 are provided on the mounting discs 8. A hay-raking connecting rod 10 is connected between each pair of corresponding movable ball heads 9 on the two mounting discs 8. Both ends of the hay-raking connecting rod 10 are connected to the movable ball heads 9 via ball head sleeves. Multiple adjustable-angle spring teeth 11 are provided on the hay-raking connecting rod 10. Thus, the adjustable-angle spring teeth 11 can adapt to the rotation angle of the positioning mounting frame 2, ensuring that the spring teeth 11 always remain vertically downward. In the design, the mounting plate 8 is a hexagonal star plate, with movable ball heads 9 on the six corners. The two hexagonal star plates are fitted together on the large-angle side of the positioning mounting frame 2, and the two hexagonal star plates are parallel to each other and located at the same horizontal height. Of course, other multi-faceted star plates can also be used for the mounting plate 8. Usually, the mounting plate 8 is driven to rotate by a hydraulic motor. The hydraulic motor is not shown in the attached figure. The drive shaft of the hydraulic motor is poweredly connected to the connecting shaft of the mounting plate 8 and the positioning mounting frame 2. The connection structure of the mounting plate 8, multiple movable ball heads 9, hydraulic motor and hay raking connecting rod 10 is a known structure and will not be described in detail here.

[0029] like Figures 2-5As shown, the aforementioned hay-raking link 10 includes a positioning tube 12 for mounting the spring teeth 11, and a limiting tube 13 fitted onto the two ends of the positioning tube 12 and coaxial with the positioning tube 12. The positioning tube 12 is provided with a plurality of first positioning holes 14 penetrating the tube body, while the limiting tube 13 is provided with a plurality of second positioning holes 15 corresponding to the first positioning holes 14. The aforementioned spring teeth 11 are mounted on the positioning tube 12. A limiting pin 16 is also provided on the limiting tube 13 near the end of the hay-raking link 10, passing through the first positioning holes 14 and the second positioning holes 15. In this way, the limiting pin 16 cooperates with the first positioning holes 14 and the second positioning holes 15 to lock the positioning tube 12 onto the limiting tube 13 to prevent relative rotation between the two, thereby improving the stability of the hay-raking link 10 during operation. During manufacturing, one end of the limiting tube 13 is equipped with a ball head sleeve that matches the movable ball head 9, and the other end of the limiting tube 13 is fitted onto the positioning tube 12 and is rotatably connected to the positioning tube 12. The limiting pin 16 passes through the body of the positioning tube 12 and the body of the limiting tube 13, so that the limiting tube 13 and the positioning tube 12 can rotate 180° relative to each other. In combination with the limiting pin 16, the angle of the spring tooth 11 on the positioning tube 12 can be quickly adjusted when the positioning tube 12 is rotated. Usually, the spring tooth 11 is fixed to the positioning tube 12 in the vertical direction. By rotating the positioning tube 12 and cooperating with the limiting pin 16, the spring tooth 11 can be reversed by 180°. Of course, the 180° rotation of the spring tooth 11 is to adapt to the 180° rotation of the hay-raking mechanism 5 on the positioning mounting frame 2. As the hay-raking mechanism 5 rotates 180°, the initial spring tooth 11 changes from vertically downward to vertically upward. Therefore, the spring tooth 11 needs to be rotated 180° to carry out hay-raking work. This innovative design can quickly switch the hay-raking direction according to the operation requirements, and shows significant advantages in many aspects compared with the traditional fixed structure.

[0030] 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 hay-raking device for a pallet-type hay rake, comprising a lifting frame (1), characterized in that: The lifting frame (1) is provided with positioning mounting frames (2) at both ends. The positioning mounting frame (2) includes a connecting frame (3) that is rotatably connected to the lifting frame (1). An inclined frame (4) is provided on the end of the connecting frame (3) away from the lifting frame (1). One side of the inclined frame (4) on the left and right sides of the positioning mounting frame (2) is inclined forward, and the other side of the inclined frame (4) is inclined backward. A hay-raking mechanism (5) is provided between the two positioning mounting frames (2) with its two ends connected to the positioning mounting frame (2). A locking device (6) that cooperates with the positioning mounting frame (2) is provided on the lifting frame (1).

2. The hay-raking device of the pallet-type hay rake as described in claim 1, characterized in that: The two ends of the hay-raking mechanism (5) are respectively set on the inclined frame (4) on the large angle side of the two positioning mounting frames (2). The upper and lower sides of the connection between the connecting frame (3) and the lifting frame (1) are respectively provided with insertion holes (7) that pass through the connecting frame (3). The insertion holes (7) cooperate with the locking device (6).

3. The hay-raking device of the pallet-type hay rake as described in claim 2, characterized in that: The locking device (6) is a detachable positioning pin, which is set on the lifting frame (1) and passes through the lifting frame (1) in the horizontal direction and extends into one of the insertion holes (7) on the connecting frame (3).

4. The hay-raking device of the pallet-type hay rake as described in claim 1, characterized in that: The hay-raking mechanism (5) includes mounting plates (8) that are rotatably connected to two positioning mounting frames (2). Multiple movable ball heads (9) are provided on the mounting plates (8). A hay-raking connecting rod (10) is connected between the two corresponding movable ball heads (9) on the two mounting plates (8). The two ends of the hay-raking connecting rod (10) are connected to the movable ball heads (9) by ball head sleeves. Multiple adjustable-angle spring teeth (11) are provided on the hay-raking connecting rod (10).

5. The hay-raking device of the pallet-type hay rake as described in claim 4, characterized in that: The hay-raking link (10) includes a positioning tube (12) for installing spring teeth (11), and a limiting tube (13) fitted on both ends of the positioning tube (12) and coaxial with the positioning tube (12). The positioning tube (12) is provided with a plurality of first positioning holes (14) penetrating the tube body, and the limiting tube (13) is provided with a plurality of second positioning holes (15) corresponding to the first positioning holes (14). The spring teeth (11) are installed on the positioning tube (12). The limiting tube (13) near the end of the hay-raking link (10) is provided with a limiting pin (16) passing through the first positioning hole (14) and the second positioning hole (15).

6. The hay-raking device of the pallet-type hay rake as described in claim 4, characterized in that: The mounting plate (8) is a hexagonal star plate, and movable ball heads (9) are provided on the six corners of the hexagonal star plate. The two hexagonal star plates are attached to the large-angle side of the positioning mounting frame (2), and the two hexagonal star plates are parallel to each other and located at the same horizontal height.

7. The hay-raking device of the pallet-type hay rake as described in claim 5, characterized in that: One end of the limiting tube (13) is provided with a ball head sleeve that matches the movable ball head (9), and the other end of the limiting tube (13) is fitted onto the positioning tube (12) and rotates relative to the positioning tube (12). The limiting pin (16) passes through the body of the positioning tube (12) and the body of the limiting tube (13).

8. The hay-raking device of the pallet-type hay rake as described in claim 5, characterized in that: The spring tooth (11) is fixed to the positioning tube (12) in the vertical direction. By rotating the positioning tube (12) and cooperating with the limiting pin (16), the spring tooth (11) can be rotated 180°.

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