Harvester and profiling device therefor

Abstract

The application belongs to the technical field of agricultural machinery equipment, and particularly relates to a harvester and a profiling device thereof. The profiling device comprises elastic members and multiple profiling components arranged on the bottom of a header device in the transverse direction. The profiling components are used for ground profiling and are in communication connection with the header device. The elastic members are used for exerting a recovery force of the profiling components towards the ground. The profiling device is used for ground profiling. The header device is adjusted according to the result of the ground profiling to adapt to the terrain undulation. The more the contact points of the profiling device with the ground, the more accurate the ground undulation can be obtained. In the application, the multiple profiling components make the profiling range of the profiling device larger. Meanwhile, the elastic members are arranged to ensure that the profiling components can quickly recover to contact with the ground after being bounced up by the ground convex, so as to improve the profiling accuracy, and thus the header device can better cope with the ground undulation.

Description

Technical Field

[0001] This application belongs to the technical field of agricultural machinery and equipment, specifically relating to a harvester and its contouring device. Background Technology

[0002] The contour-following device is a key component of a harvester, enabling the header to adapt flexibly to terrain undulations and maintain a stable operating height. This reduces crop misses and damage, and improves harvesting efficiency. In other words, the header can tilt laterally and rise and fall vertically, and these adjustments are based on the contour-following results of the device. In existing technologies, the contour-following device has few contact points with the ground and experiences lag after being bounced up by ground protrusions, resulting in lower contour-following accuracy. Utility Model Content

[0003] The purpose of this application is to provide a harvester and its contouring device, which aims to improve the accuracy of contouring.

[0004] To achieve the above objectives, this application provides a contouring device for a harvester, comprising a plurality of contouring components, wherein the plurality of contouring components are arranged laterally at the bottom of the header device, and the contouring components are used to perform ground contouring and are communicatively connected to the header device. An elastic element is used to apply a ground-recovery force to the contouring component.

[0005] In some embodiments, the contouring component includes: Mounting base for connecting to the base plate of the cutting table device; The contour rod is pivotally connected to the mounting base; A sensor is used to detect the pivot angle of the contour rod and transmit the pivot angle to the controller of the cutting table device.

[0006] In some embodiments, the mounting base includes two connecting lugs arranged at a lateral interval, the profiled rod is inserted between the two connecting lugs and passes through the lug holes of the connecting lugs via a pivot rod, and the sensor is mounted at the end of the pivot rod.

[0007] In some embodiments, the mounting base includes an L-shaped connecting plate, the L-shaped connecting plate including a connecting flat plate segment and a connecting vertical plate segment, the connecting ear plate being mounted on the connecting vertical plate segment, and the connecting flat plate segment connecting the connecting vertical plate segment and the base plate.

[0008] In some embodiments, a limiting rod parallel to the pivot rod is also provided on the contour rod, and the limiting rod is in rotational limiting cooperation with the base plate.

[0009] In some embodiments, the contour rod includes a main body segment and an arc segment, one end of the main body segment being connected to the pivot rod, and the other end of the main body segment being connected to the arc segment.

[0010] In some embodiments, the connection end between the arc segment and the main body segment is formed with an insertion groove, and the groove wall of the insertion groove is formed with a plurality of sets of connection holes arranged at intervals along the extension direction of the arc segment. The main body segment is inserted into the insertion groove and connected to one set of the connection holes by a connecting screw.

[0011] In some embodiments, a receiving hole is provided at the end of the arc segment away from the main body segment.

[0012] In some embodiments, the elastic element includes a tension spring, one end of which is connected to the fixed portion of the contouring assembly, and the other end of which is connected to the movable portion of the contouring assembly.

[0013] A second aspect of this application provides a harvester, including a harvester contouring device as described above.

[0014] Through the above technical solution, the harvester and its contouring device of this application have the following beneficial effects: Multiple contouring components are arranged laterally at intervals at the bottom of the cutting table device and make contact with the ground to perform contouring. The number of contouring components increases the contact points between the contouring device and the ground, and elastic elements are set to ensure that the contouring components can quickly return to contact with the ground after being bounced up by ground protrusions, thereby improving the contouring accuracy of the contouring device and enabling the cutting table device to better cope with ground changes.

[0015] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a schematic diagram of the contouring device extending from the cutting table device according to a specific embodiment of this application; Figure 2 This is a schematic diagram of the installation of the base plate of the contouring device and the cutting table device according to a specific embodiment of this application; Figure 3 This is a schematic diagram of the contouring device according to a specific embodiment of this application; Figure 4 This is a schematic diagram of the contouring device retracting the cutting table device according to a specific embodiment of this application.

[0017] Explanation of reference numerals in the attached figures 200. Cutting table device; 201. Base plate; 202. Storage seat; 100. Contouring component; 1. Sensor; 2. Mounting seat; 21. Connecting ear plate; 22. Connecting flat plate section; 23. Connecting vertical plate section; 3. Contouring rod; 31. Main body section; 32. Arc section; 33. Connecting hole; 34. Storage hole; 4. Pivoting rod; 5. Limiting rod; 6. Connecting screw; 7. Tension spring. Detailed Implementation

[0018] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0019] The terminology of the harvester and its following applicator according to this application is described below with reference to the accompanying drawings.

[0020] like Figures 1 to 3 As shown, a specific embodiment of this application provides a contouring device for a harvester, including an elastic element and a plurality of contouring components 100. The plurality of contouring components 100 are arranged laterally at the bottom of the header device 200. The contouring components 100 are used to perform ground contouring and are communicatively connected to the header device 200. The elastic element is used to apply a restoring force toward the ground to the contouring components 100.

[0021] The contouring device contacts the ground and provides feedback based on ground undulations, i.e., ground contouring. The header device 200 adjusts based on the ground contouring results to adapt to terrain undulations, maintain a stable operating height, thereby reducing crop missed cuts and damage, and improving harvesting efficiency. In other words, the more contact points the contouring device has with the ground, the more accurately it can capture ground undulations. In this application, multiple contouring components 100 are used to increase the contact points between the contouring device and the ground, enabling the contouring device to accurately capture ground undulations. Furthermore, elastic elements are incorporated to prevent the contouring components 100 from dangling, allowing them to quickly return to contact with the ground, thereby improving the contouring accuracy of the device and enabling the header device to better cope with ground changes.

[0022] Those skilled in the art will understand that the number of contouring components 100 needs to consider not only the contouring accuracy but also the cost of the contouring components 100. That is, more contouring components 100 are not necessarily better. The specific number is determined according to specific needs.

[0023] like Figure 1As shown, in some embodiments, the number of contouring components 100 is at least two, and the two contouring components 100 are arranged side by side in the transverse direction at the bottom of the cutting table device 200. The two contouring components 100 are respectively arranged at both ends of the cutting table device 200 in the transverse direction. The two contouring components 100 located at both ends of the cutting table device 200 in the transverse direction maximize the contouring range of the contouring device, and the remaining contouring components 100 located in the middle of the cutting table device 200 in the transverse direction improve the contouring accuracy of the contouring device, thereby enabling the cutting table device 200 to better cope with ground undulations.

[0024] like Figure 2 and Figure 3 As shown, in some embodiments, the contouring assembly 100 includes a mounting base 2, a contouring rod 3, and a sensor 1. The mounting base 2 is connected to the base plate 201 of the cutting table device 200, the contouring rod 3 is pivotally connected to the mounting base 2 via a pivoting rod 4, and the sensor 1 is used to detect the pivoting angle of the contouring rod 3 and transmit the pivoting angle to the controller of the cutting table device 200.

[0025] Specifically, the contour rod 3 rotates around the pivot rod 4 according to the ground undulations. The pivot angle of the contour rod 3 can reflect the ground undulations. The pivot angle is transmitted by the sensor 1 to the controller of the cutting table device 200. The controller then makes adaptive adjustments to the cutting table device 200 according to the pivot angle to avoid the cutting table device 200 from colliding with the ground protrusions and being damaged.

[0026] It should be noted that the control process by which the controller adaptively adjusts the cutting table device 200 based on the pivot angle detected by sensor 1 is well known to those skilled in the art and is not a core inventive point of this application, so it will not be described in detail here. The adjustment methods of the cutting table device 200 include horizontal tilt adjustment and vertical lifting adjustment. The structure and principle of the specific adjustment mechanism are well known to those skilled in the art and are not a core inventive point of this application, so it will not be described in detail here.

[0027] It should also be noted that, in the description of this application, unless otherwise stated, the terms "upper," "lower," "left," "right," "front," "back," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this disclosure 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, and therefore should not be construed as a limitation of this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. For ease of explanation, in this application, "horizontal" refers to the left-right direction, "vertical" refers to the up-down direction, and "front-back" refers to the direction perpendicular to both horizontal and vertical directions. The specific orientations are shown by the arrows in the accompanying drawings.

[0028] like Figure 2 and Figure 3As shown, in some embodiments, the mounting base 2 includes two connecting lugs 21 spaced apart in the left-right direction, a contour rod 3 is inserted between the two connecting lugs 21 and passes through the lug holes of the connecting lugs 21 via a pivot rod 4, and the sensor 1 is mounted on the left end of the pivot rod 4.

[0029] like Figure 2 and Figure 3 As shown, in some embodiments, the mounting base 2 further includes an L-shaped connecting plate, which includes a connecting flat plate segment 22 and a connecting vertical plate segment 23. A connecting ear plate 21 is mounted on the connecting vertical plate segment 23, and the connecting flat plate segment 22 connects the connecting vertical plate segment 23 and the base plate 201.

[0030] Specifically, the front end of the connecting ear plate 21 is connected to the rear end of the connecting vertical plate section 23, and the connecting flat plate section 22 is connected to the lower end of the connecting vertical plate section 23. The bottom surfaces of the connecting ear plate 21, the connecting vertical plate section 23, and the connecting flat plate section 22 are all flush with each other and fit against the top surface of the base plate 201. This arrangement allows the mounting base 2 to be placed stably on the floor, thereby ensuring the stability of the contouring component 100.

[0031] like Figure 2 and Figure 3 As shown, in some embodiments, a limiting rod 5 parallel to the pivot rod 4 is also provided on the contour rod 3. The limiting rod 5 is in a rotational limiting engagement with the base plate 201 of the header device 200. The limiting engagement between the limiting rod 5 and the base plate 201 limits the maximum height difference between the lowest point of the contour rod 3 and the base plate 201 to no greater than the height difference between the lowest point of the harvester wheel and the base plate 201, thereby preventing damage to the contour rod 3.

[0032] Specifically, the limiting rod 5 extends in the left and right direction and is wider than the contour rod 3. The limiting rod 5 and the pivot rod 4 are arranged at intervals along the extension direction of the contour rod 3. The larger the arrangement distance between the contour rod 3 and the limiting rod 5, the higher the lowest point of the contour rod 3. This makes the contour assembly 100 applicable to different models of harvesters with different height differences between the lowest point of the wheels and the bottom plate 201.

[0033] like Figure 2 and Figure 3 As shown, in some embodiments, the contour rod 3 includes a main body segment 31 and an arc segment 32. One end of the main body segment 31 is connected to the pivot rod 4, and the other end of the main body segment 31 is connected to the arc segment 32.

[0034] Specifically, the connection end between the arc segment 32 and the main body segment 31 forms an insertion groove. Multiple sets of connection holes 33 are formed on the groove wall, spaced apart along the extension direction of the arc segment 32. The main body segment 31 is inserted into the insertion groove and connected to one set of connection holes 33 via a connecting screw 6. The length of the contour rod 3 is adjusted by connecting the arc segment 32 and the main body segment 31 through different connection holes 33, thus adjusting the maximum height difference between the lowest point of the contour rod 3 and the base plate 201. This allows the contour assembly 100 to be applicable to different models of harvesters with different height differences between the lowest point of the wheels and the base plate 201.

[0035] like Figure 3 and Figure 4 As shown, in some embodiments, a storage hole 34 is provided at the end of the arc segment 32 away from the main body segment 31, and a storage seat 202 is installed on the base plate 201 of the header device 200. When transporting or storing the harvester, the contour rod 3 is rotated until the storage hole 34 is aligned with the storage seat 202, and the storage hole 34 and the storage seat 202 are connected by a storage screw to realize the storage of the contour rod 3.

[0036] like Figure 2 and Figure 3 As shown, in some embodiments, the elastic element includes a tension spring 7, one end of which is connected to the fixed part of the contouring assembly 100, and the other end is connected to the movable part of the contouring assembly 100. The fixed part of the contouring assembly 100 refers to the mounting base 2, and the movable part refers to the contouring rod 3. In other words, one end of the tension spring 7 is connected to the mounting base 2, and the other end is connected to the contouring rod 3.

[0037] Specifically, one end of the tension spring 7 has a hook, and the other end has a hook hole. The hook is attached to the mounting base 2. The contour rod 3 has a spring hole that aligns with the hook hole, and a hooking screw connects the spring hole and the hook hole. When the limiting rod 5 is in a limiting engagement with the base plate 201, the tension spring 7 is in its initial or extended state. After the contour rod 3 is lifted by the ground protrusion and rotates upward, the tension spring 7 applies a restoring force to the contour rod 3, allowing it to quickly return to its original position and re-engage with the ground. This prevents the contour rod 3 from becoming stuck and improves the reliability of the contour assembly 100.

[0038] A specific embodiment of this application also provides a harvester including the aforementioned follower device for the harvester. Because the harvester employs all the above embodiments of the follower device, it possesses all the beneficial effects brought about by the follower device.

[0039] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this application, unless otherwise expressly 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 part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A contour-following device for a harvester, characterized in that, include: Multiple contouring components (100) are laterally arranged at the bottom of the cutting table device (200), the contouring components (100) being used for ground contouring and communicatively connected to the cutting table device (200); and, An elastic element is used to apply a ground-recovery force to the contouring assembly (100).

2. The contour-following device for a harvester according to claim 1, characterized in that, The contouring component (100) includes: Mounting base (2) for connection with the base plate (201) of the cutting table device (200); The contour rod (3) is pivotally connected to the mounting base (2); Sensor (1) is used to detect the pivot angle of the contour rod (3) and transmit the pivot angle to the controller of the cutting table device (200).

3. The contour-following device for a harvester according to claim 2, characterized in that, The mounting base (2) includes two connecting lugs (21) arranged at a lateral interval. The contour rod (3) is inserted between the two connecting lugs (21) and passes through the lug holes of the connecting lugs (21) via a pivot rod (4). The sensor (1) is mounted at the end of the pivot rod (4).

4. The contour-following device for a harvester according to claim 3, characterized in that, The mounting base (2) includes an L-shaped connecting plate, which includes a connecting flat plate section (22) and a connecting vertical plate section (23). The connecting ear plate (21) is mounted on the connecting vertical plate section (23), and the connecting flat plate section (22) connects the connecting vertical plate section (23) to the base plate (201).

5. The contour-following device for a harvester according to claim 3, characterized in that, The contour rod (3) is also provided with a limiting rod (5) that is parallel to the pivot rod (4), and the limiting rod (5) is in rotational limiting cooperation with the base plate (201).

6. The contour-following device for a harvester according to claim 3, characterized in that, The contour rod (3) includes a main body section (31) and an arc section (32). One end of the main body section (31) is connected to the pivot rod (4), and the other end of the main body section (31) is connected to the arc section (32).

7. The contour-following device for a harvester according to claim 6, characterized in that, The arc segment (32) and the main body segment (31) are connected by a insertion groove. Multiple sets of connection holes (33) are formed on the groove wall of the insertion groove, which are spaced apart along the extension direction of the arc segment (32). The main body segment (31) is inserted into the insertion groove and connected to one set of the connection holes (33) by a connecting screw (6).

8. The contour-following device for a harvester according to claim 6, characterized in that, The arc segment (32) has a storage hole (34) at the end away from the main body segment (31).

9. The contouring device for a harvester according to any one of claims 1 to 8, characterized in that, The elastic element includes a tension spring (7), one end of which is connected to the fixed part of the contouring component (100), and the other end is connected to the movable part of the contouring component (100).

10. A harvester, characterized in that, Includes a contouring device for a harvester according to any one of claims 1 to 9.

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