Harvester with angle-adjustable header
By designing a swing bracket and a cylinder-driven header angle adjustment on the harvester, the problem of the header not being parallel to the ground on sloping ground was solved, achieving uniform crop cutting and efficient harvesting, and improving the harvester's adaptability and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINJIANG BOSHIRAN AGRI MACHINERY TECH
- Filing Date
- 2025-04-18
- Publication Date
- 2026-04-28
AI Technical Summary
Harvesters have difficulty keeping the cutting platform parallel to the ground on sloping surfaces, resulting in uneven crop cutting, which may lead to waste and poor harvesting results.
A harvester with an adjustable header angle was designed. Through the cooperation of a swing bracket and a cylinder, the header can be adjusted to be parallel to the sloping ground. This includes the hinge of the first and second brackets and the cylinder drive, which adjusts the tilt angle and height to adapt to the terrain.
Ensure crops are cut evenly, reduce waste, improve harvest quality and efficiency, lower failure rates, and enhance structural stability and applicability.
Smart Images
Figure CN224165240U_ABST
Abstract
Description
Technical Field
[0001] This utility model demonstrates a harvester with an adjustable header angle, belonging to the field of harvester technology. Background Technology
[0002] With the continuous advancement of agricultural mechanization and the continuous improvement of agricultural machinery technology, my country has always attached great importance to agricultural production, and the area of farmland under cultivation has been increasing. Therefore, agricultural harvesting machinery is gradually developing towards large-scale and intelligent development, and the requirements for harvester headers are also gradually increasing.
[0003] However, in actual use, if the harvester encounters a sloping area during harvesting, the cutting platform may not be able to keep parallel to the sloping ground. This can lead to uneven cutting of crops, with one side higher than the other, resulting in wasted harvesting of some crops and poor harvesting results. Utility Model Content
[0004] The purpose of this invention is to solve the problem that the header of a harvester is difficult to keep parallel to the slope when it is on a sloping ground. To this end, a harvester with an adjustable header angle is provided, which can keep the header parallel to the slope by adjusting the swing bracket.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A harvester with an adjustable header angle includes a frame, a header mounted on the frame, and a swing bracket between the frame and the header. The header and the swing bracket are fixedly connected, and the swing bracket is movably connected to the frame. The swing bracket includes a first bracket and a second bracket. A first cylinder is hinged between the first bracket and the frame, and the first bracket is rotatably connected to the frame. The first cylinder drives the first bracket to adjust the tilt angle. The second bracket is rotatably connected to the first bracket, and the header is fixedly connected to the second bracket. Two second cylinders are hinged between the second bracket and the first bracket, and the two second cylinders are located on opposite sides of the first bracket. The two second cylinders extend and retract by different lengths to adjust the height of the two sides of the second bracket.
[0007] The beneficial effects of using this utility model are:
[0008] The present invention describes a machine frame movably connected to a swing bracket, which is fixedly connected to the header. The swing bracket includes a first bracket and a second bracket. A first cylinder is provided between the first bracket and the machine frame, and a second cylinder is provided between the first bracket and the second bracket. When the harvester harvests relatively short crops, the first bracket is driven by the first air rod to adjust its tilt angle. The second bracket tilts synchronously with the first bracket. Since the header is fixedly connected to the second bracket, the distance between the header and the ground changes as the tilt angle of the second bracket changes. This allows the header to be adjusted to an appropriate height, ensuring that even short crops can be harvested and avoiding the possibility of unharvested crops and waste. Additionally, when the harvester is harvesting on sloping ground, it can... The height of the two sides of the second support can be adjusted by the second cylinder to keep the header parallel to the sloping ground. It should be noted that the sloping ground refers to the ground whose inclination direction is not parallel to the forward direction of the harvester. When the header is parallel to the sloping ground, the stubble height after the header cuts the crop can be uniform. Neat stubble not only facilitates the planting and management of subsequent crops, but also reduces crop waste caused by excessively high stubble, thus improving harvest quality. Secondly, when the header angle can be flexibly adjusted according to the crop conditions and terrain, the header can cut the crop more smoothly, reduce cutting resistance, and lower the failure rate during harvesting. At the same time, a suitable header angle helps to smoothly transport the crop to the subsequent separation and cleaning devices, improving the efficiency of the entire harvesting operation.
[0009] Preferably, a first rotating shaft is provided between the first support and the frame. One of the first support and the frame has a sliding groove, and the other has a fixed pin. One end of the pin extends into the sliding groove. A first cylinder drives the first support to rotate around the first rotating shaft, causing the pin to slide relative to the sliding groove. Using the aforementioned technical solution, the cooperation of the sliding groove and the pin provides stable support and precise guidance for the rotation of the first support. The sliding of the pin within the sliding groove restricts the lateral displacement of the first support during rotation, ensuring it can only rotate smoothly around the first rotating shaft. This prevents the first support from wobbling or shifting when adjusting the angle, thereby improving the stability of the cutting table angle adjustment.
[0010] Preferably, the first bracket is provided with sliding grooves on both its upper and lower sides, and the first rotating shaft is located between the upper and lower sliding grooves. Using the aforementioned technical solution, the upper and lower sliding grooves provide dual support and guidance for the first bracket. When the first cylinder drives the first bracket to rotate around the first rotating shaft, the upper and lower sliding grooves simultaneously restrict the lateral displacement of the first bracket, making its rotation more stable.
[0011] Preferably, the top of the second bracket is provided with a mounting groove for fixing the cutting table, and the output end of the second bracket is hinged to the lower side of the mounting groove.
[0012] Preferably, a second rotating shaft is provided between the first and second supports, and the second rotating shaft is located between two second cylinders. The two second cylinders drive the second support to rotate around the second rotating shaft. Using the aforementioned technical solution, by independently controlling the extension and retraction lengths of the two second cylinders, the height difference between the two sides of the second support can be precisely adjusted, thereby achieving fine adjustment of the lateral tilt angle of the cutting table, ensuring that the cutting table remains parallel to the sloping ground. Furthermore, the two second cylinders are distributed on both sides of the second rotating shaft, jointly driving the rotation of the second support, which can evenly distribute the driving force onto the second support, avoiding structural deformation and damage caused by excessive force on one side, and improving the load-bearing capacity and stability of the entire structure.
[0013] Preferably, the second bracket has a notch on its front side and includes a base plate below the notch. The first bracket has a rotating frame with a groove at the bottom for the base plate to extend into. A second rotating shaft is located in the middle of the rotating frame and passes through both the rotating frame and the base plate to achieve a rotating connection between the first bracket and the second bracket.
[0014] Preferably, the distance between the top of the base plate and the top of the groove gradually increases as it moves away from the second pivot. By adopting the aforementioned technical solution, the gradually increasing distance allows the second support to have greater room for movement when rotating around the second pivot, meaning the second support can have a greater swing amplitude. The base plate can gradually move away from or closer to the second pivot as it rotates, without being limited by the groove space. This expands the adjustment range of the header's lateral tilt angle, ensuring the header can remain parallel to sloped surfaces with more different tilt angles, thus helping to increase the harvester's usability.
[0015] Preferably, the top of the frame is provided with two first cylinders, which are respectively hinged to both sides of the top of the first support. By adopting the aforementioned technical solution, the two first cylinders are located on both sides of the top of the first support, which enables the first support to be subjected to more balanced forces during adjustment. When the cylinders drive the first support to rotate, the forces on both sides can be balanced, avoiding structural deformation and damage caused by excessive force on one side.
[0016] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings:
[0018] Figure 1 This is a schematic diagram of the structure of a harvester with an adjustable header angle according to the present invention;
[0019] Figure 2 This is a side view of the frame and swing bracket in a harvester with an adjustable header angle according to this utility model. Figure 1 ;
[0020] Figure 3 This is a side view of the frame and swing bracket in a harvester with an adjustable header angle according to this utility model. Figure 2 ;
[0021] Figure 4 This is a schematic diagram of the structure of the frame and the swing support in a harvester with an adjustable header angle according to this utility model;
[0022] Figure 5 This is a cross-sectional view of the swing bracket in a harvester with an adjustable header angle according to this utility model.
[0023] Figure 6 This is a schematic diagram of the frame and the first support in a harvester with an adjustable header angle according to this utility model.
[0024] Reference numerals: 1. Frame; 2. Cutting table; 21. Fixed frame; 3. Swing support; 31. First support; 311. Slide groove; 312. Pin; 313. Rotating frame; 314. Groove; 32. Second support; 321. Mounting groove; 322. Notch; 323. Base plate; 41. First cylinder; 42. Second cylinder; 51. First rotating shaft; 52. Second rotating shaft. Detailed Implementation
[0025] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.
[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", 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 utility model 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 utility model.
[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] like Figures 1 to 6 As shown in the figure, this embodiment demonstrates a harvester with an adjustable header angle, including a frame 1, on which a header 2 is mounted. A swing bracket 3 is provided between the frame 1 and the header 2. The header 2 is fixedly connected to the swing bracket 3, and the swing bracket 3 is movably connected to the frame 1. The swing bracket 3 includes a first bracket 31 and a second bracket 32. A first cylinder 41 is hinged between the first bracket 31 and the frame 1. The first bracket 31 is rotatably connected to the frame 1. The first cylinder 41 drives the first bracket 31 to adjust the tilt angle. The second bracket 32 is rotatably connected to the first bracket 31. The header 2 is fixedly connected to the second bracket 32. Two second cylinders 42 are hinged between the second bracket 32 and the first bracket 31. The two second cylinders 42 are located on both sides of the first bracket 31, and the two second cylinders 42 extend and retract by different lengths to adjust the height of the two sides of the second bracket 32.
[0029] In this embodiment, a swing bracket 3 is movably connected to the frame 1. The swing bracket 3 is fixedly connected to the header 2. The swing bracket 3 includes a first bracket 31 and a second bracket 32. A first cylinder 41 is provided between the first bracket 31 and the frame 1, and a second cylinder 42 is provided between the first bracket 31 and the second bracket 32. When the harvester harvests relatively short crops, the first bracket 31 is driven by the first air rod to adjust its tilt angle. The second bracket 32 tilts synchronously with the first bracket 31. Since the header 2 is fixedly connected to the second bracket 32, the distance between the header 2 and the ground changes as the tilt angle of the second bracket 32 changes. This allows the header 2 to be adjusted to an appropriate height, ensuring that even short crops can be harvested and avoiding the possibility of unharvested crops. In addition, when harvesting... When harvesting on a sloping surface, the height of both sides of the second support 32 can be adjusted via the second cylinder 42 to keep the header 2 parallel to the sloping surface. It should be noted that a sloping surface refers to a surface whose inclination direction is not parallel to the forward direction of the harvester. When the header 2 is parallel to the sloping surface, the stubble height after cutting the crop is uniform. Neat stubble not only facilitates the planting and management of subsequent crops but also reduces crop waste caused by excessively high stubble, thus improving harvest quality. Secondly, when the angle of the header 2 can be flexibly adjusted according to the crop conditions and terrain, the header 2 can cut the crop more smoothly, reducing cutting resistance and lowering the failure rate during harvesting. At the same time, a suitable header 2 angle helps to smoothly transport the crop to subsequent separation and cleaning devices, improving the efficiency of the entire harvesting operation.
[0030] like Figure 1 As shown, in this embodiment, the cutting table 2 includes a fixed frame 21. The top of the second support 32 is provided with a mounting groove 321 for mounting the fixed frame 21. The cutting table 2 is fixedly connected to the second support 32 through the fixed cooperation of the fixed frame 21 and the mounting groove 321. The second support 32 is rotatably connected to the first support 31 through the second rotating shaft 52. Two second cylinders 42 are respectively installed on both sides of the first support 31. The two ends of the second cylinders 42 are respectively hinged to the first support 31 and the second support 32. The first support 31 is rotatably connected to the frame 1 through the first rotating shaft 51. Two first cylinders 41 are installed on the top of the frame 1. The two first cylinders 41 are respectively hinged to both sides of the top of the first support 31. The two first cylinders 41 are located on both sides of the top of the first support 31, which can make the force on the first support 31 more balanced during the adjustment process. When the cylinder drives the first support 31 to rotate, the forces on both sides can be balanced, avoiding structural deformation and damage caused by excessive force on one side.
[0031] In this embodiment, the first rotating shaft 51 is perpendicular to the direction of movement of the harvester, and the second rotating shaft 52 is parallel to the direction of movement of the harvester. When the first cylinder 41 is started, the first cylinder 41 pushes the top of the first support 31 to rotate around the first rotating shaft 51. When the first support 31 rotates, the second support 32 rotates synchronously with the first support 31. That is, the first cylinder 41 can drive the entire swing support 3 to rotate around the first rotating shaft 51, thereby adjusting the angle between the swing support 3 and the ground. Since the cutting platform 2 is fixed to the swing support 3, the distance between the cutting platform 2 and the ground will also change as the swing support 3 rotates. This allows the cutting platform 2 to be adjusted to an appropriate height, ensuring that even short crops can be harvested and avoiding the possibility of crops not being harvested and thus wasting resources.
[0032] When the second cylinder 42 is activated, the two second cylinders 42 act independently on both sides of the second support 32, so that the two sides of the second support 32 can rotate around the second rotating shaft 52. When the left side of the second support 32 rotates upward, the right side of the second support 32 will rotate downward accordingly, thereby adjusting the height of the two sides of the second support 32. During the rotation of the second support 32 driven by the second cylinder 42, the first support 31 remains fixed relative to the frame 1, and the cutting platform 2 is fixed on the second support 32. Therefore, the cutting platform 2 will also rotate with the second support 32, thereby changing the lateral tilt angle of the cutting platform 2, so that the cutting platform 2 can remain parallel to the sloping ground. When the cutting platform 2 is parallel to the sloping ground, the cutting platform 2 can cut the crop with a uniform stubble height. Neat stubble not only facilitates the planting and management of subsequent crops, but also reduces crop waste caused by excessively high stubble, and improves harvest quality.
[0033] like Figure 2 , Figure 3 and Figure 6 As shown, in this embodiment, the first support 31 is provided with a sliding groove 311, and a pin 312 is fixed on the frame 1. One end of the pin 312 extends into the sliding groove 311. The first cylinder 41 drives the first support 31 to rotate around the first rotating shaft 51, so that the pin 312 slides relative to the sliding groove 311. The cooperation between the sliding groove 311 and the pin 312 provides stable support and precise guidance for the rotation of the first support 31. The sliding of the pin 312 in the sliding groove 311 restricts the lateral displacement of the first support 31 during the rotation process, so that it can only rotate smoothly around the first rotating shaft 51, avoiding the shaking or deviation of the first support 31 when adjusting the angle, thereby improving the stability of the angle adjustment of the header 2. In addition, the sliding groove 311 can limit the rotation angle of the first support 31, which can effectively prevent the first support 31 from affecting the normal harvesting of the header 2 due to excessive rotation angle.
[0034] It is understandable that in other embodiments, the slide 311 may also be set on the frame 1, and the corresponding pin 312 may be fixed on the first bracket 31.
[0035] In addition, in this embodiment, the first bracket 31 is provided with a sliding groove 311 on both the upper and lower sides. The first rotating shaft 51 is located between the sliding grooves 311 on both the upper and lower sides. The sliding grooves 311 on both the upper and lower sides provide dual support and guidance for the first bracket 31. When the first cylinder 41 drives the first bracket 31 to rotate around the first rotating shaft 51, the upper sliding groove 311 and the lower sliding groove 311 simultaneously restrict the lateral displacement of the first bracket 31, making its rotation more stable.
[0036] like Figure 4 and Figure 5 As shown, in this embodiment, the second bracket 32 includes a top plate, a bottom plate 323, and two side plates. A notch 322 is provided on the front side of the second bracket 32, formed by the top plate, bottom plate 323, and two side plates. A mounting groove 321 of the second bracket 32 is located at the top of the top plate. The output end of the second cylinder 42 is hinged to the bottom of the top plate. The first bracket 31 is provided with a rotating frame 313. The bottom of the rotating frame 313 has a groove 314 for the bottom plate 323 to extend into. A second rotating shaft 52 is located in the middle of the rotating frame 313, passing through both the rotating frame 313 and the bottom plate 323 to achieve the connection between the first bracket 31 and the bottom plate 323. The rotating connection of the second support 32, the distance between the top of the base plate 323 and the top of the groove 314 gradually increases as it moves away from the second rotating shaft 52. The gradually increasing distance allows the second support 32 to have more room to move when rotating around the second rotating shaft 52, that is, it allows the second support 32 to have a larger swing amplitude. The base plate 323 can gradually move away from or closer to the second rotating shaft 52 as it rotates, without being restricted by the space of the groove 314, thereby expanding the adjustment range of the lateral tilt angle of the header 2, ensuring that the header 2 can remain parallel to the sloping ground with more different tilt angles, which helps to improve the range of use of the harvester.
[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.
Claims
1. A harvester with an adjustable header angle, comprising a frame, wherein a header is mounted on the frame, characterized in that, A swing bracket is provided between the frame and the cutting table. The cutting table is fixedly connected to the swing bracket, and the swing bracket is movably connected to the frame. The swing bracket includes a first bracket and a second bracket. A first cylinder is hinged between the first bracket and the frame. The first bracket is rotatably connected to the frame. The first cylinder drives the first bracket to adjust the tilt angle. The second bracket is rotatably connected to the first bracket. The cutting table is fixedly connected to the second bracket. Two second cylinders are hinged between the second bracket and the first bracket. The two second cylinders are located on both sides of the first bracket. The two second cylinders extend and retract by different lengths to adjust the height of the two sides of the second bracket.
2. A harvester with an adjustable header angle according to claim 1, characterized in that, A first rotating shaft is provided between the first bracket and the frame. One of the first bracket and the frame is provided with a sliding groove, and the other is fixed with a pin. One end of the pin extends into the sliding groove. The first cylinder drives the first bracket to rotate around the first rotating shaft so that the pin slides relative to the sliding groove.
3. A harvester with an adjustable header angle according to claim 2, characterized in that, The first bracket has sliding grooves on both its upper and lower sides, and the first rotating shaft is located between the sliding grooves on the upper and lower sides.
4. A harvester with an adjustable header angle according to claim 1, characterized in that, The top of the second bracket is provided with a mounting groove for fixing the cutting table, and the output end of the second bracket is hinged to the lower side of the mounting groove.
5. A harvester with an adjustable header angle according to claim 1, characterized in that, A second rotating shaft is provided between the first bracket and the second bracket. The second rotating shaft is located between two second cylinders, and the two second cylinders drive the second bracket to rotate around the second rotating shaft.
6. A harvester with an adjustable header angle according to claim 5, characterized in that, The second bracket has a notch on its front side and includes a base plate below the notch. The first bracket has a rotating frame with a groove at the bottom for the base plate to extend into. The second rotating shaft is located in the middle of the rotating frame and passes through both the rotating frame and the base plate to achieve a rotating connection between the first bracket and the second bracket.
7. A harvester with an adjustable header angle according to claim 6, characterized in that, The distance between the top of the base plate and the top of the groove gradually increases as the distance moves away from the second rotating shaft.
8. A harvester with an adjustable header angle according to claim 1, characterized in that, The top of the frame is equipped with two first cylinders, which are respectively hinged to the two sides of the top of the first support.