A silage chopper with automatic return function

Abstract

The utility model discloses a throw material device and silo with automatic return function, belongs to the field of silo, has solved the return operation of throw material pipe and is more complex, the problem of lower efficiency, and the technical scheme of solving this problem mainly includes base, rotating platform and throw material pipe, and the throw material device still includes controller, first sensor and second sensor, and the rotating platform is installed with the detection board with the sliding slot, and the first sensor is equipped with the pin shaft, and the controller determines the rotation angle of rotating platform according to the lift distance of pin shaft, and the second sensor is rotatably equipped with first pivot, and the throw material pipe is connected with first pivot through first connecting rod assembly, and the throw material pipe swings up and down and drives first pivot to rotate, and the controller determines the swing angle of throw material pipe according to the rotation angle of first pivot, and the controller calibrates the initial position of rotating platform and throw material pipe through first sensor and second sensor. The utility model mainly makes controller can directly control throw material pipe to return to the initial position.

Description

Technical Field

[0001] This utility model demonstrates a feeding device and a silage machine with automatic return function, belonging to the field of silage machine 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] After the silage machine finishes feeding the material, the feeding tube of the silage machine needs to return to its initial position. However, the existing technology usually uses traditional manual operation to complete the return of the feeding tube. The feeding tube is returned to the support of the feeding tube by pressing the button on the operating handle. This return method is relatively complicated, inefficient and highly dependent on manual labor. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the return operation of the throwing tube is relatively complicated and inefficient. To this end, a throwing device and a silage machine with automatic return function are provided. The controller calibrates the initial position of the throwing tube through the first sensor and the second sensor, so that the controller can directly control the throwing tube to return to the initial position.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A material throwing device with automatic return function includes a base, a rotating table fixed to the top of the base, and a material throwing tube that can swing up and down relative to the rotating table. The material throwing tube is rotatably connected to the top of the rotating table via a mounting base. The material throwing device also includes a controller, a first sensor fixed relative to the base, and a second sensor fixed to the mounting base. The rotating table is equipped with a detection plate with a groove. The distance between the groove and the rotating table gradually increases or decreases along the extension direction of the detection plate. The first sensor is movably equipped with a pin. The pin slides along the groove as the rotating table rotates, and the pin moves up and down along the groove. The controller determines the rotation angle of the rotating table based on the lifting distance of the pin. The second sensor is rotatably equipped with a first rotating shaft. The material throwing tube is connected to the first rotating shaft via a first connecting rod assembly. The up and down swing of the material throwing tube drives the first rotating shaft to rotate. The controller determines the swing angle of the material throwing tube based on the rotation angle of the first rotating shaft. The controller calibrates the initial positions of the rotating table and the material throwing tube through the first and second sensors.

[0006] The beneficial effects of using this utility model are: The throwing device described in this utility model includes a controller, a first sensor, and a second sensor. A detection plate is provided on the rotating table, and a sliding groove is provided on the detection plate. The first sensor is provided with a pin that extends into the sliding groove. During the rotation of the rotating table and the throwing tube, the detection plate rotates with the rotating table. The first sensor is fixed relative to the base, and the pin slides relative to the sliding groove of the detection plate. Since the distance between the sliding groove and the rotating table gradually increases or decreases along the extension direction of the detection plate, the pin will also rise or fall relative to the first sensor during the sliding process relative to the sliding groove. The first sensor obtains the lifting distance of the pin, and the controller determines the rotation angle of the rotating table based on the lifting distance of the pin. In addition, the second sensor is fixed to the fixed base. The throwing tube is connected to the first rotating shaft of the second sensor through a first connecting rod assembly. During the up-and-down swinging of the throwing tube relative to the rotating table, the first connecting rod assembly drives... The first rotating shaft rotates, and the second sensor acquires the rotation angle of the first rotating shaft. The controller determines the swing angle of the throwing tube based on the rotation angle of the first rotating shaft. When the throwing tube is in the initial position, the controller calibrates the initial position of the throwing tube based on the data acquired by the first and second sensors. During operation, as the rotating table rotates and the throwing tube swings, the controller determines the rotation angle and swing angle of the throwing tube relative to the initial position based on the data acquired by the first and second sensors. When the throwing tube needs to return to its original position, the controller directly controls the throwing tube to rotate and swing in the opposite direction based on the changed rotation angle and swing angle, so that the throwing tube can accurately return to the initial position. This achieves one-click return of the throwing tube, making the return operation of the throwing tube simpler and faster, while eliminating manual operation and reducing the dependence on human labor.

[0007] Preferably, the detection plate is arc-shaped, located at the edge of the rotary table and extending circumferentially along the rotary table. By employing the aforementioned technical solution, the shape of the detection plate and the rotary table form a concentric circle structure. As the rotary table rotates, the distance between the detection plate and the first sensor remains constant, preventing axial movement of the pin within the slide groove. This ensures smoother sliding contact between the pin and the slide groove, preventing the possibility of jamming.

[0008] Preferably, the material throwing device further includes a frame, a base fixed on the frame, a first fixing plate fixedly installed on the frame, and a first sensor fixed on the first fixing plate.

[0009] Preferably, the first sensor includes a Hall sensor, with one end of a pin slidably connected to the Hall sensor and the other end extending into a groove. A magnet is provided on the pin to trigger the Hall sensor. Using the aforementioned technical solution, the pin slides relative to the Hall sensor. The Hall sensor determines the distance the pin has moved based on the change in the magnetic field detected by the pin's movement. The non-contact detection between the Hall sensor and the pin effectively avoids wear and errors caused by contact friction, thus improving the detection accuracy of the first sensor.

[0010] Preferably, the first connecting rod assembly includes a first connecting rod and a first pull rod, the throwing tube is provided with a second fixing plate, one end of the first connecting rod is hinged to the second fixing plate, the other end is hinged to the first pull rod, and the end of the first pull rod away from the first connecting rod is fixedly connected to the first rotating shaft.

[0011] Preferably, the end of the throwing tube away from the rotary table is rotatably connected to a throwing head. One of the throwing tube and the throwing head is fixed with a third sensor, and the other is connected to a second linkage assembly. The third sensor is rotatably equipped with a second rotating shaft. The second linkage assembly is connected to the second rotating shaft. The throwing head swings relative to the throwing tube, causing the second rotating shaft to rotate. The controller determines the swing angle of the throwing head based on the rotation angle of the second rotating shaft. The controller calibrates the initial position of the throwing head through the third sensor.

[0012] Preferably, the second linkage assembly includes a second connecting rod and a second pull rod, the throwing head is provided with a third fixing plate, the third sensor is fixed to the throwing tube, one end of the second connecting rod is hinged to the third fixing plate, the other end is hinged to the second pull rod, and the end of the second pull rod away from the second connecting rod is fixedly connected to the second rotating shaft.

[0013] This utility model also discloses a silage machine, including a frame, a throwing device on the frame, and a cutting table at the front end of the frame. The throwing device is a throwing device with automatic return function as described in any of the above.

[0014] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of the material throwing device with automatic return function according to this utility model. Figure 1 ; Figure 2 for Figure 1 A magnified view of part A in the middle; Figure 3 This is a schematic diagram of the structure of the material throwing device with automatic return function according to this utility model. Figure 2 ; Figure 4 for Figure 3 A magnified view of part B in the middle section.

[0016] Reference numerals: 1. Base; 11. Drive motor; 111. Drive chain; 2. Throwing tube; 21. Throwing head; 22. First cylinder; 23. Second cylinder; 24. Second fixing plate; 25. First connecting rod assembly; 251. First connecting rod; 252. First pull rod; 26. Third fixing plate; 27. Second connecting rod assembly; 271. Second connecting rod; 272. Second pull rod; 3. Rotary table; 31. Detection plate; 311. Slide groove; 32. Fixing base; 41. First sensor; 411. Pin; 42. First fixing plate; 51. Second sensor; 52. Third sensor. Detailed Implementation

[0017] 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.

[0018] 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.

[0019] 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.

[0020] Example 1: like Figures 1 to 4As shown in the figure, this embodiment illustrates a material throwing device with an automatic return function, including a base 1, a rotating platform 3 fixed to the top of the base 1, and a material throwing tube 2 that can swing up and down relative to the rotating platform 3. The material throwing tube 2 is rotatably connected to the top of the rotating platform 3 via a mounting base. The material throwing device also includes a controller, a first sensor 41 fixed relative to the base 1, and a second sensor 51 fixed to the mounting base. The rotating platform 3 is equipped with a detection plate 31 having a groove 311. The distance between the groove 311 and the rotating platform 3 gradually increases or decreases along the extension direction of the detection plate 31. The first sensor 41 is movably provided with a pin. Shaft 411 and pin 411 slide along slide groove 311 as the rotary table 3 rotates. Pin 411 slides up and down along slide groove 311. The controller determines the rotation angle of the rotary table 3 based on the lifting distance of pin 411. The second sensor 51 is rotatably equipped with a first hinge shaft. The throwing tube 2 is connected to the first hinge shaft through the first connecting rod assembly 25. The throwing tube 2 swings up and down, driving the first hinge shaft to rotate. The controller determines the swing angle of the throwing tube 2 based on the rotation angle of the first hinge shaft. The controller calibrates the initial position of the rotary table 3 and the throwing tube 2 through the first sensor 41 and the second sensor 51.

[0021] The throwing device described in this embodiment includes a controller, a first sensor 41, and a second sensor 51. A detection plate 31 is provided on the rotating table 3, and a sliding groove 311 is provided on the detection plate 31. The first sensor 41 is provided with a pin 411, which extends into the sliding groove 311. During the rotation of the throwing tube 2 driven by the rotating table 3, the detection plate 31 rotates with the rotating table 3. The first sensor 41 is fixed relative to the base 1, and the pin 411 slides relative to the sliding groove 311 of the detection plate 31. Since the distance between the sliding groove 311 and the rotating table 3 gradually increases or decreases along the extension direction of the detection plate 31, the pin 411 also rises or falls relative to the first sensor 41 during the sliding process relative to the sliding groove 311. The first sensor 41 obtains the lifting distance of the pin 411, and the controller determines the rotation angle of the rotating table 3 based on the lifting distance of the pin 411. Additionally, the second sensor 51 is fixed to the fixed base 32, and the throwing tube 2 is connected to the first hinge shaft of the second sensor 51 through a first connecting rod assembly 25. During the up-and-down swinging of the rotary table 3, the first connecting rod assembly 25 drives the first hinge shaft to rotate, and the second sensor 51 acquires the rotation angle of the first hinge shaft. The controller determines the swing angle of the throwing tube 2 based on the rotation angle of the first hinge shaft. When the throwing tube 2 is in the initial position, the controller calibrates the initial position of the throwing tube 2 based on the data acquired by the first sensor 41 and the second sensor 51. During operation, as the rotary table 3 rotates and the throwing tube 2 swings, the controller determines the rotation angle and swing angle of the throwing tube 2 relative to the initial position based on the data acquired by the first sensor 41 and the second sensor 51. When the throwing tube 2 needs to return to its original position, the controller directly controls the throwing tube 2 to rotate and swing in the opposite direction based on the changing rotation angle and swing angle of the throwing tube 2, so that the throwing tube 2 can accurately return to the initial position, thereby realizing one-click return of the throwing tube 2, making the return operation of the throwing tube 2 simpler and faster, and eliminating manual operation and reducing the dependence on manual labor.

[0022] like Figure 1 and Figure 2As shown, the throwing device in this embodiment also includes a frame, on which a base 1 is fixed. A rotating platform 3 is rotatably connected to the top of the base 1. The outer periphery of the rotating platform 3 is provided with teeth. A drive motor 11 is fixed on the base 1. A drive chain 111 is fitted between the output end of the drive motor 11 and the teeth of the rotating platform 3. The drive motor 11 drives the rotating platform 3 to rotate through the drive chain 111. The rotating platform 3 is horizontally arranged. The throwing tube 2 is installed on the top of the rotating platform 3. The rotation of the rotating platform 3 drives the throwing tube 2 to rotate on the horizontal plane. A fixed seat 32 is installed on the top of the rotating platform 3. A horizontally inserted hinge shaft is provided on the fixed seat 32. The throwing tube 2 is rotatably connected to the fixed seat 32 through the hinge shaft. The rotating platform 3 is provided with a first cylinder 22. The two ends of the first cylinder 22 are hinged to the rotating platform 3 and the throwing tube 2, respectively. The first cylinder 22 drives the throwing tube 2 to swing around the hinge shaft to realize the swing of the throwing tube 2 in the vertical direction.

[0023] like Figure 2 As shown, in this embodiment, a detection plate 31 is provided around the periphery of the rotating table 3. The detection plate 31 is arc-shaped and is located at the edge of the rotating table 3, extending circumferentially. The detection plate 31 is provided with grooves 311 distributed along its extension direction. Along the extension direction of the detection plate 31, the distance between the grooves 311 and the rotating table 3 gradually increases or decreases, meaning the grooves 311 are generally inclined. Additionally, in this embodiment, a first fixing plate 42 is fixed to the frame, and a first sensor 41 is fixed to the first fixing plate 42. A pin 411 is movably provided on the side of the first sensor 41 facing the detection plate 31. The pin 411 can slide vertically relative to the first sensor 41, with one end of the pin 411... The pin 411 slides along the slide groove 311 and slides in a sliding engagement with the slide groove 311. During the rotation of the rotary table 3, the pin 411 slides along the slide groove 311 and moves up and down relative to the first sensor 41. The first sensor 41 obtains the distance of the pin 411's movement. The detection plate 31 is set along the circumference of the rotary table 3 on the edge of the rotary table 3, so that the shape of the detection plate 31 is concentric with the rotary table 3. During the rotation of the rotary table 3, the distance between the detection plate 31 and the first sensor 41 remains unchanged, preventing the pin 411 from axially moving within the slide groove 311, making the sliding engagement between the pin 411 and the slide groove 311 smoother, and preventing the possibility of the pin 411 and the slide groove 311 getting stuck.

[0024] In this embodiment, the first sensor 41 includes a Hall sensor. One end of a pin 411 is slidably connected to the Hall sensor, and the other end extends into a groove 311. The pin 411 is provided with a magnet for triggering the Hall sensor. During the sliding process of the pin 411 along the groove 311, the pin 411 moves up and down relative to the Hall sensor. During the moving up and down process, the magnetic field acquired by the Hall sensor changes, and the Hall sensor determines the distance that the pin 411 has moved up and down based on the change in the magnetic field. The Hall sensor and the pin 411 adopt non-contact detection, which can effectively avoid wear and errors caused by contact friction, and help improve the detection accuracy of the first sensor 41.

[0025] In this embodiment, when the rotary table 3 is in the initial position, the controller calibrates the rotary table 3 according to the height of the pin 411 obtained by the first sensor 41. As the rotary table 3 rotates, the pin 411 rises and falls under the action of the slide 311. The first sensor 41 synchronously obtains the position of the pin 411 rising and falling. The controller determines the distance of the pin 411 rising or falling according to the data obtained by the first sensor 41, thereby determining the angle of rotation of the rotary table 3 relative to the initial position. When the discharge tube 2 needs to return to its original position, the controller controls the rotary table 3 to rotate in the opposite direction according to the angle of rotation of the rotary table 3 until the rotary table 3 returns to the calibrated position.

[0026] like Figure 2 As shown, in this embodiment, a second sensor 51 is fixed on the fixed base 32. The second sensor 51 is rotatably connected to a first rotating shaft. A second fixed plate 24 is provided on the throwing tube 2. The second fixed plate 24 is connected to the first rotation of the second sensor 51 through a first connecting rod assembly 25. The first connecting rod assembly 25 includes a first connecting rod 251 and a first pull rod 252. One end of the first connecting rod 251 is hinged to the second fixed plate 24, and the other end is hinged to the first pull rod 252. The end of the first pull rod 252 away from the first connecting rod 251 is fixedly connected to the first rotating shaft. The first air rod drives the throwing tube 2 to rotate around the hinge shaft to drive the throwing tube 2 to swing upward or downward. During the swinging process of the throwing tube 2, the second fixed plate 24 is connected to the first connecting rod... 251 and the first pull rod 252 drive the first rotating shaft to rotate, and the second sensor 51 obtains the rotation angle of the first rotating shaft. When the throwing tube 2 is in the initial position, the controller calibrates the throwing tube 2 according to the position of the first rotating shaft obtained by the second sensor 51. During the swinging process of the first cylinder 22 driving the throwing tube 2, the first connecting rod assembly 25 drives the first rotating shaft to rotate, and the second sensor 51 synchronously obtains the position of the first rotating shaft. The controller determines the rotation angle of the first rotating shaft according to the data obtained by the second sensor 51, thereby determining the swing angle of the throwing tube 2 relative to the initial position. When the throwing tube 2 needs to return to its original position, the controller controls the throwing tube 2 to swing in the opposite direction according to the swing angle of the throwing tube 2 until the throwing tube 2 returns to the calibrated position.

[0027] like Figure 3 and Figure 4 As shown, in this embodiment, a throwing head 21 is rotatably connected to the end of the throwing tube 2 away from the rotary table 3. A second cylinder 23 is provided on the throwing tube 2, which drives the throwing head 21 to swing upward or downward relative to the throwing tube 2. A third sensor 52 is fixedly installed on the throwing tube 2, and a third fixing plate 26 is provided on the throwing head 21. The third fixing plate 26 is connected to the second rotation of the third sensor 52 through a second connecting rod assembly 27. The second connecting rod assembly 27 includes a second connecting rod 271 and a second pull rod 272. One end of the second connecting rod 271 is hinged to the third fixing plate 26, and the other end is hinged to the second pull rod 272. The end of the second pull rod 272 away from the second connecting rod 271 is fixedly connected to a second rotating shaft. The second cylinder drives the throwing head 21 to rotate, thereby driving the throwing head 21 to swing upward or downward. During the swinging process, the third fixed plate 26 drives the second rotating shaft to rotate via the second connecting rod 271 and the second pull rod 272, and the third sensor 52 acquires the rotation angle of the second rotating shaft. When the throwing head 21 is in the initial position, the controller calibrates the throwing head 21 based on the position of the second rotating shaft acquired by the third sensor 52. During the swinging process of the second cylinder 23 driving the throwing head 21, the second connecting rod assembly 27 drives the second rotating shaft to rotate, and the third sensor 52 synchronously acquires the position of the second rotating shaft. The controller determines the rotation angle of the second rotating shaft based on the data acquired by the third sensor 52, thereby determining the swing angle of the throwing head 21 relative to the initial position. When the throwing head 21 needs to return to its original position, the controller controls the throwing head 21 to swing in the opposite direction based on the swing angle of the throwing head 21 until the throwing head 21 returns to the calibrated position.

[0028] Example 2: This embodiment illustrates a silage machine, including a frame, a throwing device on the frame, and a cutting table at the front end of the frame. The throwing device is an automatic return-to-position throwing device as described in Embodiment 1 above.

[0029] 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 material throwing device with automatic return function, comprising a base, a rotating platform fixed to the top of the base, and a material throwing tube that can swing up and down relative to the rotating platform, the material throwing tube being rotatably connected to the top of the rotating platform via a mounting base, characterized in that, The throwing device also includes a controller, a first sensor fixed relative to the base, and a second sensor fixed to the mounting base. The rotary table is equipped with a detection plate with a groove. The distance between the groove and the rotary table gradually increases or decreases along the extension direction of the detection plate. The first sensor is movably equipped with a pin. The pin slides along the groove as the rotary table rotates. The pin moves up and down along the groove. The controller determines the rotation angle of the rotary table based on the lifting distance of the pin. The second sensor is rotatably equipped with a first rotating shaft. The throwing tube is connected to the first rotating shaft through a first connecting rod assembly. The throwing tube swings up and down, driving the first rotating shaft to rotate. The controller determines the swing angle of the throwing tube based on the rotation angle of the first rotating shaft. The controller calibrates the initial positions of the rotary table and the throwing tube through the first and second sensors.

2. The material throwing device with automatic return function according to claim 1, characterized in that, The detection plate is arc-shaped and is located at the edge of the rotating table, extending circumferentially along the rotating table.

3. The material throwing device with automatic return function according to claim 1, characterized in that, The material throwing device also includes a frame, a base fixed on the frame, a first fixing plate fixedly installed on the frame, and a first sensor fixed on the first fixing plate.

4. The material throwing device with automatic return function according to claim 1, characterized in that, The first sensor includes a Hall sensor, one end of a pin is slidably connected to the Hall sensor, and the other end extends into a groove. The pin is provided with a magnet for triggering the Hall sensor.

5. The material throwing device with automatic return function according to claim 1, characterized in that, The first connecting rod assembly includes a first connecting rod and a first pull rod. The throwing tube is provided with a second fixing plate. One end of the first connecting rod is hinged to the second fixing plate, and the other end is hinged to the first pull rod. The end of the first pull rod away from the first connecting rod is fixedly connected to the first rotating shaft.

6. The material throwing device with automatic return function according to claim 1, characterized in that, The end of the throwing tube away from the rotary table is rotatably connected to a throwing head. One of the throwing tube and the throwing head is fixed with a third sensor, and the other is connected to a second linkage assembly. The third sensor is rotatably connected to a second rotating shaft. The second linkage assembly is connected to the second rotating shaft. The throwing head swings relative to the throwing tube, causing the second rotating shaft to rotate. The controller determines the swing angle of the throwing head based on the rotation angle of the second rotating shaft. The controller calibrates the initial position of the throwing head through the third sensor.

7. The material throwing device with automatic return function according to claim 6, characterized in that, The second linkage assembly includes a second connecting rod and a second pull rod. The throwing head is provided with a third fixing plate. A third sensor is fixed to the throwing tube. One end of the second connecting rod is hinged to the third fixing plate, and the other end is hinged to the second pull rod. The end of the second pull rod away from the second connecting rod is fixedly connected to the second rotating shaft.

8. A silo, characterized in that The device includes a frame, on which a material throwing device is provided, and at the front end of the frame a cutting table. The material throwing device is a material throwing device with automatic return function as described in any one of claims 1 to 7.

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