A mixed forage clamp
By designing a hybrid hay clamp, which employs a left clamping arm, a right clamping arm, a frame, and a synchronization mechanism, the problem of the single function of existing hay clamps is solved. This achieves efficient handling and structural stability of round bales and round hay bundles, adapting to various usage needs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGHE INTELLIGENT EQUIP MFG CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-29
Smart Images

Figure CN224298836U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of telescopic boom forklift attachments, specifically a mixed hay clamp. Background Technology
[0002] A mixed hay clamp is an attachment mounted on a telescopic forklift, which propels it forward. It can be used to handle round bales and round hay bales. Currently available hay clamps are single-function, capable of handling either round bales or round hay bales alone, and cannot perform both functions simultaneously. Utility Model Content
[0003] This invention provides a hybrid hay clip, proposing a hybrid hay clip structure that can handle both round wrappers and round hay bales, overcoming the shortcomings described in the background art.
[0004] The technical solution adopted by this utility model to solve its technical problem is:
[0005] A mixed hay clip, comprising:
[0006] Left arm clamp;
[0007] The right clamping arm, and the left and right clamping arms are equipped with a number of rake teeth;
[0008] A frame, on both sides of which are fitted with a left clamping arm and a right clamping arm;
[0009] A drive mechanism, the control end of which is connected to the left or right clamping arm to control the displacement of the corresponding clamping arm;
[0010] The left clamping arm moves in sync with the right clamping arm via a synchronization mechanism.
[0011] Clamping arms, the left clamping arm and the right clamping arm are equipped with clamping arms on their inner sides.
[0012] In some embodiments, the left clamping arm and the right clamping arm include a base frame, a reinforcing rod, and a mounting frame. The base frame and the mounting frame are vertically connected. The reinforcing rods are symmetrically installed on both sides of the base frame and are installed at an angle. The reinforcing rods, the base frame, and the mounting frame form a triangular structure.
[0013] The above structure makes the left and right clamping arms more stable, facilitating the gripping and handling of circular wrappers and circular hay bales.
[0014] In some embodiments, the mounting bracket is provided with mounting holes, and one end of the rake teeth is locked to the mounting holes.
[0015] This facilitates disassembly, repair, or replacement of damaged rake teeth.
[0016] In some embodiments, the left and right clamping arms are mounted on the clamping arms via a connecting frame. The connecting frame includes an assembly frame and a connecting rod. One end of the connecting rod is connected to the assembly frame, which is adapted to the mounting frame and is fitted onto the outer surface of the mounting frame. The other end of the connecting rod is provided with an auxiliary frame, which is connected to the back side of the clamping arm.
[0017] The clamping arms can be disassembled and assembled as needed. That is, the hay clamp can use only the left and right clamping arms, or additional clamping arms can be added to work in conjunction with the left and right clamping arms.
[0018] In some embodiments, a connecting lug is provided at the end of the base frame away from the mounting frame, and a hinge rod is provided in the middle of the connecting lug. The left clamping arm and the right clamping arm are rotated around the hinge rod. The two sides of the hinge rod on the connecting lug are respectively provided with a first mating point for connecting and cooperating with the synchronization mechanism and the drive mechanism, and a second mating point for connecting and cooperating with the clamping arm.
[0019] In some embodiments, the clamping arm is connected to the second mating point via a pin, and the end of the pin is limited by a D-pin.
[0020] A connecting frame is installed on the back of the clamping arm. The assembly frame in the connecting frame is fitted onto the mounting frame. When disassembling the clamping arm, the connection between the assembly frame and the mounting frame must be released. This is the first connection point between the clamping arm and the left or right clamping arm. There is another connection point at the second mating point, specifically achieved by separating the clamping arm from the connecting ear via a D-pin. This is the second connection point between the clamping arm and the left or right clamping arm. Once both connections are released, the clamping arm can be completely detached from the left or right clamping arm.
[0021] In some embodiments, the synchronization mechanism includes a central link, a first link, and a second link. One end of the first link and the second link are respectively hinged to the two ends of the central link, and the other end of the first link and the second link are hinged to a first mating point at a corresponding position, with the hinged position located on the bottom surface of the connecting lug.
[0022] In some embodiments, a control shaft is installed at the first mating point of the connecting ear, the drive mechanism is a hydraulic cylinder, and the control end of the hydraulic cylinder is connected to the control shaft.
[0023] The control end of the hydraulic cylinder is its moving end. Taking the hydraulic cylinder as the driving mechanism, the moving end of the hydraulic cylinder connected to the left clamping arm, and the connecting rod connected to the left clamping arm as the first connecting rod as an example, a shaft is set at the center of the central connecting rod. The moving end of the hydraulic cylinder controls the displacement of the left clamping arm, the first connecting rod is driven to move, and the central connecting rod swings around the shaft as the rotation base point, and then drives the second connecting rod to control the synchronous clamping action of the right clamping arm.
[0024] In some embodiments, the rake teeth are bent along the length direction to form curved rake teeth, and the clamping arm is bent along the length direction.
[0025] It is easy to use to wrap round parcels or round bundles of grass, and the curved rake teeth can also be inserted into the bundles of grass to limit their position.
[0026] In some embodiments, the back side of the frame is provided with a connection structure for assembly onto a telescopic forklift.
[0027] It facilitates the assembly of the mixed hay clamp onto the telescopic forklift.
[0028] By adopting the above technical solution, the beneficial effects of this utility model are:
[0029] The mixed hay clamp of this utility model efficiently transports round bales and round hay bales by cooperating with the rake teeth on the left clamping arm and the clamping arm. The left and right clamping arms are linked by a synchronization mechanism, so that the left clamping arm opens and closes in sync with the right clamping arm, that is, it opens outward or closes inward simultaneously. The drive mechanism cooperates with the synchronization mechanism to control the displacement of one clamping arm and the two clamping arms to complete the corresponding predetermined actions. Attached Figure Description
[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0031] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0032] Figure 2 This is a three-dimensional structural diagram of the back side of this utility model;
[0033] Figure 3 A schematic diagram of the D-type pin and a side view of this utility model;
[0034] Figure 4 This is a schematic diagram of the synchronization mechanism in this utility model;
[0035] Figure 5 This is a front view of the present invention;
[0036] Figure 6 This is a rear view of the present invention.
[0037] Explanation of key figure labels:
[0038] 1. Left clamping arm; 2. Right clamping arm; 20. Rake teeth; 200. Limiting part; 21. Base frame; 211. Connecting ear; 2111. Hinge rod; 2112. First mating point; 2113. Control shaft; 2114. Second mating point; 22. Reinforcing rod; 23. Mounting bracket; 231. Mounting hole; 3. Frame; 31. Connecting structure; 4. Drive mechanism; 5. Synchronization mechanism; 51. Central connecting rod; 52. First connecting rod; 53. Second connecting rod; 6. Clamping arm; 60. Connecting frame; 601. Assembly frame; 6011. Limiting port; 602. Connecting rod; 603. Auxiliary frame; 61. Pin; 62. D-pin. Detailed Implementation
[0039] like Figures 1-6 As shown, this utility model provides a mixed hay clamp, including a left clamping arm 1, a right clamping arm 2, a frame 3, a drive mechanism 4, a synchronization mechanism 5, and a clamping arm 6. Several rake teeth 20 are installed on the left clamping arm 1 and the right clamping arm 2. The left clamping arm 1 and the right clamping arm 2 are installed on both sides of the frame 3. The control end of the drive mechanism 4 is connected to the left clamping arm 1 or the right clamping arm 2 to control the displacement of the corresponding clamping arm. The left clamping arm 1 and the right clamping arm 2 are synchronously clamped through the synchronization mechanism 5. The clamping arm 6 is installed on the inner side of the left clamping arm 1 and the right clamping arm 2.
[0040] According to some embodiments of the present invention, optionally, the left clamping arm 1 and the right clamping arm 2 include a base frame 21, a reinforcing rod 22, and a mounting frame 23. The base frame 21 and the mounting frame 23 are vertically connected. The reinforcing rod 22 is symmetrically installed on both sides of the base frame 21 and is installed at an angle. The reinforcing rod 22, the base frame 21, and the mounting frame 23 form a triangular structure.
[0041] The left clamping arm 1 and the right clamping arm 2 have the same structure, both including a base frame 21, a reinforcing rod 22, and a mounting frame 23.
[0042] According to some embodiments of the present invention, optionally, the mounting bracket 23 is provided with a mounting hole 231, and one end of the rake tooth 20 is locked to the mounting hole 231.
[0043] According to some embodiments of the present invention, optionally, the left clamping arm 1 and the right clamping arm 2 are mounted on the clamping arm 6 via a connecting frame 60. The connecting frame 60 includes an assembly frame 601 and a connecting rod 602. One end of the connecting rod 602 is connected to the assembly frame 601. The assembly frame 601 is adapted to the mounting frame 23 and is sleeved on the outer surface of the mounting frame 23. The other end of the connecting rod 602 is provided with an auxiliary frame 603, which is connected to the back side of the clamping arm 6.
[0044] According to some embodiments of the present invention, optionally, a connecting ear 211 is provided at the end of the base frame 21 away from the mounting frame 23, and a hinge rod 2111 is provided in the middle of the connecting ear 211. The left clamping arm 1 and the right clamping arm 2 take the hinge rod 2111 as the rotation base point. The two sides of the hinge rod 2111 on the connecting ear 211 are respectively provided with a first mating point 2112 for connecting and cooperating with the synchronization mechanism 5 and the drive mechanism 4, and a second mating point 2114 for connecting and cooperating with the clamping arm 6.
[0045] According to some embodiments of the present invention, optionally, the synchronization mechanism 5 includes a central connecting rod 51, a first connecting rod 52, and a second connecting rod 53. One end of the first connecting rod 52 and the second connecting rod 53 are respectively hinged to the two ends of the central connecting rod 51, and the other end of the first connecting rod 52 and the second connecting rod 53 are hinged to the first mating point 2112 at the corresponding position, and the hinge position is located on the bottom surface of the connecting ear 211.
[0046] According to some embodiments of the present invention, optionally, the clamping arm 6 is connected to the second mating point 2114 via a pin 61, and the end of the pin 61 is limited by a D-shaped pin 62.
[0047] According to some embodiments of the present invention, optionally, a control shaft 2113 is installed at the first mating point 2112 of the connecting ear 211, and the driving mechanism 4 is a hydraulic cylinder, with the control end of the hydraulic cylinder connected to the control shaft 2113.
[0048] According to some embodiments of the present invention, optionally, the rake teeth 20 are bent along the length direction to form curved rake teeth 20, and the clamping arm 6 is bent along the length direction.
[0049] According to some embodiments of the present invention, optionally, a connecting structure 31 for assembling onto a telescopic forklift is provided on the back side of the frame 3.
[0050] Example 1
[0051] like Figure 1 As shown, this embodiment provides a mixed hay clamp, including a left clamping arm 1, a right clamping arm 2, a frame 3, a drive mechanism 4, a synchronization mechanism 5, and a clamping arm 6. Several rake teeth 20 are installed on the left clamping arm 1 and the right clamping arm 2. The left clamping arm 1 and the right clamping arm 2 are installed on both sides of the frame 3. The control end of the drive mechanism 4 is connected to the left clamping arm 1 or the right clamping arm 2 to control the displacement of the corresponding clamping arm. The left clamping arm 1 and the right clamping arm 2 are synchronously clamped by the synchronization mechanism 5. The clamping arm 6 is installed on the inner side of the left clamping arm 1 and the right clamping arm 2.
[0052] The rake teeth 20 are bent along the length direction to form curved rake teeth 20, and the clamping arm 6 is bent along the length direction.
[0053] Example 2
[0054] like Figures 1-6As shown, this embodiment provides a mixed hay clamp. The difference between this embodiment and Embodiment 1 is that:
[0055] The left clamping arm 1 and the right clamping arm 2 include a base frame 21, a reinforcing rod 22, and a mounting frame 23. The base frame 21 and the mounting frame 23 are vertically connected. The reinforcing rods 22 are symmetrically installed on both sides of the base frame 21 and are installed at an angle. The reinforcing rods 22, the base frame 21, and the mounting frame 23 form a triangular structure. The mounting frame 23 is provided with mounting holes 231, and one end of the rake teeth 20 is locked to the mounting holes 231.
[0056] A connecting ear 211 is provided at the end of the base frame 21 away from the mounting frame 23. A hinge rod 2111 is provided in the middle of the connecting ear 211. The left clamping arm 1 and the right clamping arm 2 take the hinge rod 2111 as the rotation base point. The two sides of the hinge rod 2111 on the connecting ear 211 are respectively provided with a first mating point 2112 for connecting and cooperating with the synchronization mechanism 5 and the drive mechanism 4, and a second mating point 2114 for connecting and cooperating with the clamping arm 6.
[0057] The synchronization mechanism 5 includes a central connecting rod 51, a first connecting rod 52, and a second connecting rod 53. One end of the first connecting rod 52 and the second connecting rod 53 are respectively hinged to the two ends of the central connecting rod 51, and the other end of the first connecting rod 52 and the second connecting rod 53 are hinged to the first mating point 2112 at the corresponding position, and the hinge position is located on the bottom surface of the connecting lug 211. The clamping arm 6 is connected to the second mating point 2114 through a pin 61, and the end of the pin 61 is limited by a D-pin 62.
[0058] A control shaft 2113 is installed at the first mating point 2112 of the connecting ear 211. The drive mechanism 4 is a hydraulic cylinder, and the control end of the hydraulic cylinder is connected to the control shaft 2113.
[0059] Left clamping arm 1 and right clamping arm 2 are mounted on clamping arm 6 via connecting frame 60. Connecting frame 60 includes assembly frame 601 and connecting rod 602. One end of connecting rod 602 is connected to assembly frame 601. Assembly frame 601 is adapted to mounting frame 23 and is sleeved on the outer surface of mounting frame 23. The other end of connecting rod 602 is provided with auxiliary frame 603, which is connected to the back side of clamping arm 6.
[0060] The back side of the frame 3 is provided with a connection structure 31 for assembly onto a telescopic forklift, specifically a hook.
[0061] Taking a hydraulic cylinder as the driving component and a multi-link structure as the synchronization mechanism 5 as an example, the following explanation is provided. The link connected to the left clamping arm 1 is the first link 52, and the link connected to the right clamping arm 2 is the second link 53. The movable end of the hydraulic cylinder is connected to the left clamping arm 1. After the mixed hay clamp is installed onto the telescopic forklift, a hydraulic system works in conjunction with the hydraulic cylinder. The hydraulic system includes various pipelines and valve bodies. Typically, the valve bodies are installed on the frame 3. Hydraulic systems are a common technology in this field and will not be described in detail here.
[0062] The hooks on frame 3 are connected to the corresponding positions on the telescopic forklift, and the corresponding number of pins 61 are locked in. By controlling the displacement of the movable end of the hydraulic cylinder, the left clamping arm 1 is displaced. The longer the movable end of the hydraulic cylinder extends, the closer the left clamping arm 1 is to the clamped object (straw). The left clamping arm 1 performs a synchronous clamping action through the synchronization mechanism 5. At the same time as the left clamping arm 1 and the right clamping arm 2 are displaced, the gripping arm 6 is displaced synchronously. The gripping arm 6 clamps the clamping arm from the inside. The rake teeth 20 on the left clamping arm 1 and the right clamping arm 2 assist in limiting the clamped object (straw).
[0063] It should be noted that there are usually three rake teeth 20 on the mounting frame 23. Since the assembly frame 601 is fitted onto the outer surface of the mounting frame 23, in order to ensure the stability of the assembly frame 601 and the mounting frame 23, on the one hand, the shell reduces the degree of displacement of the assembly frame 601 by adjusting the gap between the inner wall of the assembly frame 601 and the outer surface of the mounting frame 23. On the other hand, several limiting holes 6011 can be set on the assembly frame 601. The limiting holes 6011 are limited by one end of the rake teeth 20, so that the assembly frame 601 can be limited and installed onto the mounting frame 23. Specifically, when the rake teeth 20 are locked and limited with the mounting frame 23, they extend from the front end of the mounting frame 23 to the rear end of the mounting frame 23 and extend out of the surface of the mounting frame 23 to form a limiting part 200. The limiting holes 6011 on the assembly frame 601 are limited by the limiting part 200. Furthermore, the limiting position is the connection and limiting between the assembly frame 601 and the rake teeth 20 in the middle position.
[0064] The above are merely preferred embodiments of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent and the contents of the specification should still fall within the scope of the present utility model.
Claims
1. A mixed hay clamp, characterized in that, include: Left arm clamp; The right clamping arm, and the left and right clamping arms are equipped with a number of rake teeth; A frame, on both sides of which are fitted with a left clamping arm and a right clamping arm; A drive mechanism, the control end of which is connected to the left or right clamping arm to control the displacement of the corresponding clamping arm; The left clamping arm moves in sync with the right clamping arm via a synchronization mechanism. Clamping arms, the left clamping arm and the right clamping arm are equipped with clamping arms on their inner sides.
2. The mixed hay clamp according to claim 1, characterized in that, The left and right clamping arms include a base frame, a reinforcing rod, and a mounting frame. The base frame and the mounting frame are vertically connected. The reinforcing rods are symmetrically installed on both sides of the base frame and are installed at an angle. The reinforcing rods, the base frame, and the mounting frame form a triangular structure.
3. The mixed hay clamp according to claim 2, characterized in that, The mounting frame is provided with mounting holes, and one end of the rake teeth is locked to the mounting holes.
4. The mixed hay clamp according to claim 2, characterized in that, The left and right clamping arms are mounted on the clamping arms via a connecting frame. The connecting frame includes an assembly frame and a connecting rod. One end of the connecting rod is connected to the assembly frame, which is adapted to the mounting frame and is fitted onto the outer surface of the mounting frame. The other end of the connecting rod is provided with an auxiliary frame, which is connected to the back side of the clamping arm.
5. The mixed hay clamp according to claim 2, characterized in that, A connecting lug is provided at the end of the base frame away from the mounting frame. A hinge rod is provided in the middle of the connecting lug. The left clamping arm and the right clamping arm are rotated around the hinge rod. A first mating point for connecting and cooperating with the synchronization mechanism and the drive mechanism and a second mating point for connecting and cooperating with the clamping arm are respectively provided on both sides of the hinge rod on the connecting lug.
6. The mixed hay clamp according to claim 5, characterized in that, The synchronization mechanism includes a central link, a first link, and a second link. One end of the first link and the second link are respectively hinged to the two ends of the central link, and the other end of the first link and the second link are hinged to the first mating point at the corresponding position, and the hinge position is located on the bottom surface of the connecting lug.
7. The mixed hay clamp according to claim 5, characterized in that, The clamping arm is connected to the second mating point via a pin, and the end of the pin is limited by a D-pin.
8. The mixed hay clamp according to claim 5, characterized in that, A control shaft is installed at the first mating point of the connecting ear, and the driving mechanism is a hydraulic cylinder, with the control end of the hydraulic cylinder connected to the control shaft.
9. The mixed hay clamp according to claim 1, characterized in that, The rake teeth are bent along the length direction to form curved rake teeth, and the clamping arm is bent along the length direction.
10. The mixed hay clamp according to claim 1, characterized in that, The back side of the frame is provided with a connection structure for assembly onto a telescopic forklift.