A silage harvester with automatic row alignment

Abstract

The utility model discloses a silo with automatic alignment device belongs to the silo field, has solved the problem that silo needs the artificial correction of driving direction, the technical scheme of solving this problem mainly includes the frame, and the front end of frame is equipped with the cutting platform, and the cutting platform includes the tool rest and cutting part, the front side of tool rest is equipped with the detection rod that extends to the front, in the forward direction of frame, the front end of detection rod is in the front side of cutting part, and the front end of detection rod is equipped with detection device, and detection device includes the angle sensor fixed to detection rod and the rotary part with detection rod rotation cooperation, and the angle sensor is used for obtaining the rotation angle of rotary part, and the top of rotary part is connected with the steering plate, and the steering plate includes the steering arm that extends to the both sides of detection rod, and the steering plate is elastically loaded by elastic part and makes steering arm have with detection rod keep perpendicular's rotation tendency.

Description

Technical Field

[0001] This utility model demonstrates a silage harvester with an automatic row alignment device, belonging to the field of silage harvester technology. Background Technology

[0002] A silage harvester is a commonly used agricultural machine. Its function is to chop and store crop stalks before maturity or after autumn harvest for use as livestock feed. During the operation of the silage harvester, a throwing pipe is used as a material conveying device to throw the material harvested by the silage harvester into the collection vehicle that follows the silage harvester.

[0003] When forage harvesters are working in the field, they often have to travel along the seedbed. This requires the autopilot unit to be able to automatically identify the trend of the seedbed and make real-time corrections to the driving direction. Due to the different trends of the seedbed, the driving direction often needs to be constantly corrected to meet the operational requirements. If such corrections to directional deviations are made manually, it will seriously affect the efficiency of the operation. Moreover, it requires a high level of experience from the operators. Inaccurate judgments or operational errors will cause great damage to the crops and thus affect the crop yield. Utility Model Content

[0004] The purpose of this invention is to solve the problem that silage harvesters require manual correction of their driving direction. To this end, a silage harvester with an automatic alignment device is provided, which can achieve automatic alignment of the driving direction through a detection device.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A forage harvester with an automatic alignment device includes a frame. A cutter is located at the front end of the frame. The cutter includes a blade holder and a cutting element. A detection rod extending forward is located on the front side of the blade holder. In the forward direction of the frame, the front end of the detection rod is positioned in front of the cutting element. A detection device is mounted on the front end of the detection rod. The detection device includes an angle sensor fixed to the detection rod and a rotating component that rotatably engages with the detection rod. The angle sensor is used to acquire the rotation angle of the rotating component. A steering plate is connected to the top end of the rotating component. The steering plate includes steering arms extending to both sides of the detection rod. The steering plate is elastically loaded by an elastic element, causing the steering arms to have a rotational tendency that remains perpendicular to the detection rod.

[0007] The beneficial effects of using this utility model are:

[0008] The detection rod described in this invention has a detection device at its front end, which includes an angle sensor and a rotating component. The rotating component is connected to a steering plate, which includes a steering arm and has a rotational tendency to make the steering arm perpendicular to the detection rod. During the harvesting process of the silage harvester in the field, when the direction of travel of the silage harvester deviates from the trend of the seedbed, and because the front end of the detection rod is in front of the cutting component, the steering arm of the steering plate will preferentially contact the silage. Under the action of the silage, the steering arm will drive the steering plate to rotate, and during the rotation of the steering plate, it will drive the rotating component to rotate. The angle sensor can then detect the rotation. The angle sensor converts the data obtained by the rotating component into an electrical signal and transmits it to the controller of the silage harvester. The controller can correct the direction of the silage harvester based on the data obtained by the angle sensor. During the correction process, the force of the silage on the steering arm gradually decreases, and the steering plate gradually returns to the center under the action of the elastic element. When the driving direction of the silage harvester is parallel to the seedling belt, the steering arm does not contact the silage, the elastic element drives the steering plate to return to the center, so that the steering arm is perpendicular to the detection rod, the rotating component returns to the initial position, the angle sensor sends a signal feedback to the controller, and the controller stops correcting the silage harvester.

[0009] Preferably, the rotating component includes a magnet and a fixed base. The magnet is fixed to the end of the fixed base near the angle sensor, and the fixed base is rotatably connected to the detection rod. By employing the aforementioned technical solution, the magnet is positioned close to the angle sensor, enabling the angle sensor to more sensitively detect changes in the magnet's magnetic field. The angle sensor can receive magnetic field change information and respond more quickly, significantly improving the sensitivity of the angle sensor and effectively enhancing its detection accuracy.

[0010] Preferably, the top of the fixed base protrudes beyond the top surface of the detection rod, and the steering plate is detachably connected to the top of the fixed base via fasteners. By employing the aforementioned technical solution, the steering plate is higher than the top surface of the detection rod, preventing the detection rod from interfering with the rotation of the steering plate, ensuring smoother rotation of the steering plate, and accurately reflecting the degree of deviation of the forage harvester.

[0011] Preferably, the front end of the detection rod is provided with a mounting cavity, the angle sensor is fixed in the mounting cavity, and the rotating component is rotatably mounted in the mounting cavity through a bearing.

[0012] Preferably, the inner wall of the mounting cavity is provided with a stepped surface, the bearing is placed on the stepped surface, a retaining spring is installed in the mounting cavity, and the bearing is confined between the stepped surface and the retaining spring.

[0013] Preferably, the steering plate further includes a pull rod that extends toward the tool box and is perpendicular to the steering arm. A fixing plate is provided on the detection rod. One end of the elastic element is positioned on the fixing plate, and the other end is positioned on the pull rod. The elastic element causes the pull rod to have a rotational tendency that keeps it parallel to the detection rod.

[0014] Preferably, an extension arm is connected to the end of the steering arm away from the steering plate. Using the aforementioned technical solution, the extension arm can increase the extension length of the steering arm, and users can also replace extension arms of different lengths according to the spacing between the seedling strips, thereby improving the applicability of the silage harvester.

[0015] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the silage harvester with an automatic row alignment device according to this utility model;

[0018] Figure 2 for Figure 1 A magnified view of part A in the middle;

[0019] Figure 3 This is a cross-sectional view of the detection device in the silage harvester with an automatic row alignment device according to this utility model.

[0020] Reference numerals: 1. Cutting table; 11. Cutting component; 12. Tool holder; 2. Detection rod; 21. Fixing plate; 22. Elastic component; 23. Mounting base; 231. Mounting cavity; 232. Step surface; 3. Detection device; 31. Angle sensor; 32. Rotating component; 321. Magnet; 322. Fixing base; 323. Bearing; 324. Snap ring; 33. Steering plate; 331. Steering arm; 332. Tie rod; 333. Extension arm; 34. Fastener. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] 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.

[0024] like Figures 1 to 3 As shown in the figure, this embodiment illustrates a forage harvester with an automatic alignment device, including a frame. The front end of the frame is provided with a cutter 1, which includes a blade holder 12 and a cutting element 11. The front side of the blade holder 12 is provided with a forward-extending detection rod 2. In the forward direction of the frame, the front end of the detection rod 2 is located in front of the cutting element 11. A detection device 3 is installed at the front end of the detection rod 2. The detection device 3 includes an angle sensor 31 fixed to the detection rod 2 and a rotating element 32 that rotates with the detection rod 2. The angle sensor 31 is used to obtain the rotation angle of the rotating element 32. The top end of the rotating element 32 is connected to a steering plate 33. The steering plate 33 includes steering arms 331 extending to both sides of the detection rod 2. The steering plate 33 is elastically loaded by an elastic element 22, so that the steering arms 331 have a rotational tendency that is perpendicular to the detection rod 2.

[0025] In this embodiment, the front end of the detection rod 2 is provided with a detection device 3. The detection device 3 includes an angle sensor 31 and a rotating component 32. The rotating component 32 is connected to a steering plate 33. The steering plate 33 includes a steering arm 331, and the steering plate 33 has a rotational tendency that makes the steering arm 331 perpendicular to the detection rod 2. During the harvesting operation of the silage harvester in the field, when the direction of travel of the silage harvester deviates from the trend of the seedbed, and because the front end of the detection rod 2 is located in front of the cutting component 11, the steering arm 331 of the steering plate 33 will preferentially touch the silage. Under the action of the silage, the steering arm 331 will drive the steering plate 33 to rotate. During the rotation of the steering plate 33, the rotating component 32 will rotate, and the angle sensor... The angle sensor 31 can obtain the rotation angle of the rotating part 32. The angle sensor 31 converts the obtained data into an electrical signal and transmits it to the controller of the silage machine. The controller can correct the direction of the silage machine according to the data obtained by the angle sensor 31. During the correction process, the force of the silage on the steering arm 331 gradually decreases, while the steering plate 33 gradually returns to the center under the action of the elastic member 22. When the driving direction of the silage machine is parallel to the seedling belt, the steering arm 331 does not contact the silage. The elastic member 22 drives the steering plate 33 to return to the center, so that the steering arm 331 is perpendicular to the detection rod 2. The rotating part 32 rotates back to the initial position, the angle sensor 31 sends a signal feedback to the controller, and the controller stops correcting the silage machine.

[0026] like Figure 3 As shown, in this embodiment, the front end of the detection rod 2 forms a mounting base 23, and the mounting base 23 has a mounting cavity 231. The mounting cavity 231 forms an opening on the top surface of the detection rod 2. The angle sensor 31 is fixed to the bottom of the mounting cavity 231. The rotating component 32 is rotatably mounted in the mounting cavity 231. The rotating component 32 includes a magnet 321 and a fixed base 322. A bearing 323 is fitted on the outer periphery of the fixed base 322. The bearing 323 is interference-fitted with the inner wall of the mounting cavity 231. The fixed base 322 is rotatably connected to the mounting cavity 231 through the bearing 323. Inside, magnet 321 is fixed to the bottom of fixed base 322 by fastener 34. Magnet 321 is located above angle sensor 31, and there is a gap between magnet 321 and angle sensor 31. Magnet 321 is set close to angle sensor 31, so that angle sensor 31 can more sensitively sense the magnetic field change of magnet 321. Angle sensor 31 can receive magnetic field change information and respond faster, which can significantly improve the sensitivity of angle sensor 31, and also effectively improve the detection accuracy of angle sensor 31.

[0027] In this embodiment, the inner wall of the mounting cavity 231 is provided with a stepped surface 232. The bearing 323 is placed on the stepped surface 232. A retaining ring 324 is installed in the mounting cavity 231. The bearing 323 is restricted between the stepped surface 232 and the retaining ring 324. The stepped surface 232 and the retaining ring 324 form an axial positioning of the bearing 323, preventing the bearing 323 from sliding down and causing the magnet 321 to directly contact the angle sensor 31.

[0028] In this embodiment, the top of the fixed seat 322 protrudes from the opening of the mounting cavity 231. The steering plate 33 is detachably connected to the top of the fixed seat 322 by fasteners 34. The steering plate 33 is higher than the top surface of the detection rod 2 to prevent the detection rod 2 from interfering with the rotation of the steering plate 33, ensuring that the rotation of the steering plate 33 is smoother and can accurately reflect the degree of deviation of the silage machine.

[0029] like Figure 2 As shown, the steering plate 33 in this embodiment is T-shaped. The steering plate 33 includes steering arms 331 extending to both sides of the detection rod 2 and a pull rod 332 extending to the tool box. The steering arms 331 and the pull rod 332 are perpendicular to each other. The detection rod 2 is provided with a fixing plate 21. One end of the elastic element 22 is positioned on the fixing plate 21, and the other end is positioned on the pull rod 332. The elastic element 22 is a tension spring. When the pull rod 332 is parallel to the detection rod 2, the elastic element 22 is also parallel to the detection rod 2, and at this time the length of the elastic element 22 is the smallest. When the steering plate 33 deflects, the pull rod 332 will stretch the elastic element 22, increasing the elastic force of the elastic element 22 on the pull rod 332, so that the pull rod 332 has a tendency to return to its original position.

[0030] In this embodiment, the end of the steering arm 331 away from the steering plate 33 is connected to an extension arm 333. The extension arm 333 is detachably connected to the steering arm 331. The extension arm 333 can increase the extension length of the steering arm 331. At the same time, the user can also replace the extension arm 333 with different lengths according to the spacing between the seedling strips, thereby improving the applicability of the silage machine.

[0031] 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 forage harvester with an automatic row alignment device, comprising a frame, the front end of which is provided with a cutter, the cutter including a blade holder and a cutting element, characterized in that, The front side of the tool holder is provided with a forward-extending detection rod. In the forward direction of the frame, the front end of the detection rod is located in front of the cutting part. A detection device is installed at the front end of the detection rod. The detection device includes an angle sensor fixed to the detection rod and a rotating part that rotates with the detection rod. The angle sensor is used to obtain the rotation angle of the rotating part. The top end of the rotating part is connected to a steering plate. The steering plate includes steering arms extending to both sides of the detection rod. The steering plate is elastically loaded by an elastic element so that the steering arms have a rotational tendency that keeps perpendicular to the detection rod.

2. A forage harvester with an automatic row alignment device according to claim 1, characterized in that, The rotating component includes a magnet and a fixed base. The magnet is fixed to one end of the fixed base near the angle sensor, and the fixed base is rotatably connected to the detection rod.

3. A forage harvester with an automatic row alignment device according to claim 2, characterized in that, The top of the fixed base protrudes beyond the top surface of the detection rod, and the steering plate is detachably connected to the top of the fixed base by fasteners.

4. A forage harvester with an automatic row alignment device according to claim 1, characterized in that, The front end of the detection rod is provided with a mounting cavity, the angle sensor is fixed in the mounting cavity, and the rotating component is rotatably mounted in the mounting cavity through a bearing.

5. A forage harvester with an automatic row alignment device according to claim 4, characterized in that, The inner wall of the mounting cavity is provided with a stepped surface, the bearing is placed on the stepped surface, and a retaining spring is installed in the mounting cavity, with the bearing confined between the stepped surface and the retaining spring.

6. A forage harvester with an automatic row alignment device according to claim 1, characterized in that, The steering plate also includes a pull rod that extends toward the tool box and is perpendicular to the steering arm. A fixing plate is provided on the detection rod. One end of the elastic element is positioned on the fixing plate, and the other end is positioned on the pull rod. The elastic element causes the pull rod to have a rotational tendency that keeps it parallel to the detection rod.

7. A forage harvester with an automatic row alignment device according to claim 1, characterized in that, An extension arm is connected to the end of the steering arm away from the steering plate.

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