A height and angle adjustable divider for a rice harvester

Abstract

The application provides a height and angle adjustable divider for regenerative rice and a harvester, comprising a left divider height adjusting device, a left divider angle adjusting device, a right divider height adjusting device, a right divider angle adjusting device and a divider height adjusting control system; the left divider height adjusting device is installed on the left side of a cutting table; the left divider angle adjusting device is installed on the left divider height adjusting device; the right divider height adjusting device is installed on the right side of the cutting table; the right divider angle adjusting device is installed on the right divider height adjusting device; the left divider height adjusting device and the right divider height adjusting device are used to drive the divider to move up and down in the vertical direction, and the left divider angle adjusting device and the right divider angle adjusting device are used to adjust the opening angle of the divider tip plate. The application realizes two-degree-of-freedom adjustable height and angle of the divider, improves the crop universality and complex agricultural adaptability, and can realize efficient division of various crops such as regenerative rice and reduce loss.

Description

Technical Field

[0001] This invention belongs to the field of intelligent agricultural machinery technology, and in particular relates to a rice divider and harvester with adjustable dividing height and angle for regenerated rice. Background Technology

[0002] The divider is the core component at the very front of the harvester, playing a crucial role in directly impacting harvesting efficiency, crop loss, and machine adaptability. During harvesting, it guides and divides the crop, and can also lift and guide forward- or sideways-lying crop stalks within the cutter's range, reducing missed cuts. As the machine moves forward, it physically separates the crop to be harvested from the next pass or unharvested crop at the root, creating a clear cutting boundary.

[0003] However, current rice dividers on the market generally have the following problems: First, they do not separate the rice completely, easily causing collateral losses; second, the cutting boundary is unclear, and improper coordination between the divider and the cutter can easily lead to double cutting or missed cutting; third, they have poor crop adaptability, mainly effective for traditional crops and conventional planting patterns. Taking ratooning rice planted according to the wide-narrow row pattern as an example, during the first rice harvest, the harvester must strictly follow a straight path without compaction, the divider position is fixed, and the dividing angle and height are not adjustable. Because mature rice droops and tilts under the weight of the panicle, existing dividers are unable to effectively separate and guide this part of the rice into the cutter head, resulting in significant losses. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a divider and harvester for ratooning rice with adjustable dividing height and angle, which can achieve efficient dividing of ratooning rice and other crops and reduce losses.

[0005] The present invention achieves the above-mentioned technical objectives through the following technical means.

[0006] A rice divider with adjustable dividing height and angle for regenerated rice includes a left divider height adjustment device, a left divider angle adjustment device, a right divider height adjustment device, a right divider angle adjustment device, and a divider height adjustment control system.

[0007] The left divider height adjustment device is installed on the left side of the header;

[0008] The left divider angle adjustment device is installed on the left divider height adjustment device;

[0009] The right divider height adjustment device is installed on the right side of the header;

[0010] The right divider angle adjustment device is installed on the right divider height adjustment device;

[0011] The left divider height adjustment device and the right divider height adjustment device are used to drive the divider to move up and down in the vertical direction, and the left divider angle adjustment device and the right divider angle adjustment device are used to adjust the opening angle of the divider tip.

[0012] The divider height adjustment control system includes sensors and a control unit; the sensors include a crop height detection sensor, a stubble height detection sensor, and a divider height detection sensor; the divider height detection sensor includes a left divider height detection sensor and a right divider height detection sensor.

[0013] The crop height detection sensor is used to detect the crop height H;

[0014] The stubble height detection sensor is used to detect the stubble height h.

[0015] The left divider height detection sensor is used to detect the current height of the left divider. ;

[0016] The right divider height detection sensor is used to detect the current height of the right divider. ;

[0017] The control unit is electrically connected to the crop height detection sensor, the stubble height detection sensor, the left divider height detection sensor, the right divider height detection sensor, the left divider height adjustment device, and the right divider height adjustment device, respectively.

[0018] In the above scheme, the left divider height adjustment device includes a left divider main board, a left outer baffle, a stepper motor main unit, a stepper motor telescopic guide rail, a left lower support plate, an upper slider, a lower slider, a stepper motor telescopic rod, a bending connecting plate, a stepper motor guide rail left upright plate, and a left front panel of the cutter table;

[0019] The left outer baffle is connected to the inner side of the left main plate by a connecting rib.

[0020] One side of the left stalk main board and one side of the left outer baffle are respectively connected to the left stalk angle adjustment device;

[0021] The left vertical plate of the stepper motor guide rail is connected to the front side of the left front panel of the cutting table.

[0022] The stepper motor telescopic guide rail is installed on the left upright plate of the stepper motor guide rail;

[0023] The lower left support plate is connected to the left vertical plate of the stepper motor guide rail;

[0024] The stepper motor main unit is mounted on the lower left support plate and is electrically connected to the control unit;

[0025] The stepper motor telescopic rod is connected to the stepper motor main unit;

[0026] The upper slider and the lower slider are respectively slidably mounted on the upper and lower sides of the stepper motor telescopic guide rail;

[0027] One end of the bent connecting plate is connected to the stepper motor telescopic rod, and the other end is connected to the upper slider;

[0028] The upper end of the other side of the left branch motherboard is connected to the upper slider;

[0029] The lower end of the other side of the left-side main board is connected to the lower slider.

[0030] The other side of the left outer baffle is connected to the lower slider.

[0031] Furthermore, the stepper motor host drives the stepper motor telescopic rod to extend and retract. The stepper motor telescopic rod drives the upper slider to slide along the stepper motor telescopic guide rail through the bending connecting plate. The upper slider drives the left dividing main board to move up and down. The lower slider slides synchronously with the left dividing main board and drives the left outer baffle to move up and down synchronously, thereby realizing the overall height adjustment of the divider.

[0032] In the above scheme, the left tiller angle adjustment device includes a rotatable left tiller tip plate, a fixed square plate, a fixed plate with a shaft hole, and a locking nut;

[0033] One side of the rotatable left dividing tip is provided with a threaded shaft;

[0034] One side of the fixed square plate is connected to the left outer baffle;

[0035] The fixing plate with the shaft hole is connected to the other side of the fixing square plate by bolts, and is rotatably connected to the threaded shaft of the rotatable left dividing tip plate;

[0036] The locking nut engages with the threaded shaft to lock the rotation angle of the rotatable left dividing tip plate.

[0037] Furthermore, the threaded shaft of the rotatable left tillering tip is installed in the shaft hole of the fixing plate with shaft hole. When rotated counterclockwise, the tillering angle is increased, and when rotated clockwise, the tillering angle is decreased. After adjustment, it is fixed by locking nut.

[0038] Furthermore, the left tillering angle adjustment device also includes a tiller bar;

[0039] The guide bar is mounted on a fixed plate with a shaft hole, and the other end of the guide bar contacts one side surface of the left dividing plate to prevent crop stems from getting tangled and to guide the crop smoothly into the header.

[0040] In the above scheme, the control unit calculates the target tillering height based on the crop height H and the stubble height h. And based on the current height of the left divider The difference between the target height L and the current height of the right divider. The difference between the height L and the target height is used to calculate the number of pulses, which in turn drives the drive elements of the left and right divider height adjustment devices to move their respective dividers up and down to the target height.

[0041] In the above scheme, the right divider height adjustment device and the left divider height adjustment device have the same structure and are installed symmetrically, and the right divider angle adjustment device and the left divider angle adjustment device have the same structure and are installed symmetrically.

[0042] In the above scheme, the divider height adjustment control system adopts an open-loop control method. After the control unit calculates the target height based on the sensor detection value, it directly outputs pulses to drive the stepper motor host to complete the height adjustment.

[0043] A harvester includes a divider for the regenerated rice with adjustable dividing height and angle.

[0044] Compared with the prior art, the beneficial effects of the present invention are:

[0045] 1. The present invention provides an adjustable divider for ratooning rice, which can achieve efficient division of rice and reduce losses in ratooning rice and other crops.

[0046] 2. This invention achieves dual-degree-of-freedom adjustment of the tillering height and angle, breaking through the limitations of the fixed structure of traditional tillers. The tillering height adopts a rigid transmission scheme with a stepper motor driving the guide rail slider, achieving vertical adjustment. It can automatically adjust to the optimal tillering position according to the crop height and stubble height. The tillering tip angle adopts a manual adjustment structure with a threaded shaft and locking nut, which can be flexibly adjusted and reliably locked according to the degree of crop drooping and the cutting width requirements. The dual-degree-of-freedom adjustment of height and angle allows the tiller to more accurately guide drooping or lodged stalks into the cutting platform, significantly reducing missed cutting losses caused by drooping ears.

[0047] 3. This invention improves crop versatility and adaptability to complex agronomic processes, and is specifically designed for challenging crops such as ratooning rice. It can effectively handle special conditions such as stubble regeneration after the first harvest and drooping panicles. At the same time, it can adapt to modern planting patterns such as wide and narrow rows and high density, improving the harvester's adaptability to different field conditions and crop states, and solving the problem of poor adaptability of existing dividers to complex agronomic conditions.

[0048] 4. This invention features a compact structure and stable, reliable adjustment. The tillering height adjustment employs a rigid transmission scheme using a stepper motor and guide rail slider, ensuring smooth movement and strong load-bearing capacity. The control system utilizes an open-loop control method, resulting in a simple structure and rapid response. The tillering angle adjustment mechanism achieves quick manual locking via a threaded shaft and locking nut, ensuring a simple and reliable structure. The overall structure is compact, facilitating installation and maintenance, and is suitable for placement within the limited space at the front of the header of a combine harvester. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the overall structure of a rice divider with adjustable dividing height and angle according to an embodiment of the present invention.

[0050] Figure 2 This is a schematic diagram of the structure of the left divider height adjustment device according to an embodiment of the present invention.

[0051] Figure 3 This is a partial schematic diagram of a left tiller angle adjustment device according to an embodiment of the present invention. Figure 1 .

[0052] Figure 4 This is a partial schematic diagram of a left tiller angle adjustment device according to an embodiment of the present invention. Figure 2 .

[0053] Figure 5 This is a partial schematic diagram of a left tiller angle adjustment device according to an embodiment of the present invention. Figure 3 .

[0054] Figure 6 This is an exploded structural diagram of the left-hand angle adjustment device according to an embodiment of the present invention.

[0055] Figure 7 This is a schematic diagram of the rotatable left tiller tip plate of a left tiller angle adjustment device according to an embodiment of the present invention.

[0056] Figure 8 This is a flowchart illustrating the height adjustment control of the left divider according to one embodiment of the present invention.

[0057] Figure 9 This is a schematic diagram showing the connection of the sensor and control unit of the left divider height adjustment control system according to an embodiment of the present invention.

[0058] In the diagram: 1. Left divider height adjustment device; 2. Left divider angle adjustment device; 3. Right divider height adjustment device; 4. Right divider angle adjustment device; 101. Left divider main board; 102. Left outer baffle; 103. Connecting rib; 104. Stepper motor main unit; 105. Stepper motor telescopic guide rail; 106. Left lower support plate; 107. Upper slider; 108. Lower slider; 109. Stepper motor telescopic rod; 110. First welding strip ; 111, Second welding strip; 112, Third welding strip; 113, Bending connecting plate; 114, Stepper motor guide rail left upright plate; 115, Left front panel of the header; 201, Rotatable left dividing tip plate; 202, Fixed square plate; 203, Fixed plate with shaft hole; 204, Guide bar; 301, Crop height detection sensor; 302, Stubble height detection sensor; 303, Divider height detection sensor; 304, Control unit. Detailed Implementation

[0059] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0060] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "front," "rear," "left," "right," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention 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 the invention. Furthermore, 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 indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0061] In this invention, 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 invention according to the specific circumstances.

[0062] Figure 1 The image shows a preferred embodiment of the adjustable rice divider for regenerated rice, which includes a left divider height adjustment device 1, a left divider angle adjustment device 2, a right divider height adjustment device 3, a right divider angle adjustment device 4, and a divider height adjustment control system.

[0063] The left divider height adjustment device 1 is installed on the left side of the header;

[0064] The left divider angle adjustment device 2 is installed on the left divider height adjustment device 1;

[0065] The right divider height adjustment device 3 is installed on the right side of the header;

[0066] The right divider angle adjustment device 4 is installed on the right divider height adjustment device 3;

[0067] The left divider height adjustment device 1 and the right divider height adjustment device 3 are used to drive the divider to move up and down in the vertical direction, and the left divider angle adjustment device 2 and the right divider angle adjustment device 4 are used to adjust the opening angle of the divider tip.

[0068] The divider height adjustment control system includes sensors and a control unit 304; the sensors include a crop height detection sensor 301, a stubble height detection sensor 302, and a divider height detection sensor 303; the divider height detection sensor 303 includes a left divider height detection sensor and a right divider height detection sensor.

[0069] The crop height detection sensor 301 is used to detect the crop height H;

[0070] The stubble height detection sensor 302 is used to detect the stubble height h;

[0071] The left divider height detection sensor is used to detect the current height of the left divider. ;

[0072] The right divider height detection sensor is used to detect the current height of the right divider. ;

[0073] The control unit 304 is electrically connected to the crop height detection sensor 301, the stubble height detection sensor 302, the left divider height detection sensor, the right divider height detection sensor, the left divider height adjustment device 1, and the right divider height adjustment device 3, respectively.

[0074] The right divider height adjustment device 3 and the left divider height adjustment device 1 have the same structure and are installed symmetrically. The right divider angle adjustment device 4 and the left divider angle adjustment device 2 have the same structure and are installed symmetrically.

[0075] like Figure 2-5 As shown, the left divider height adjustment device 1 includes a left divider main board 101, a left outer baffle 102, a stepper motor main unit 104, a stepper motor telescopic guide rail 105, a left lower support plate 106, an upper slider 107, a lower slider 108, a stepper motor telescopic rod 109, a bending connecting plate 113, a stepper motor guide rail left upright plate 114, and a left front panel 115 of the cutter table;

[0076] The dividing plate 101 is used to divide the crop boundary and guide the crop into the cutter head for cutting; the left outer baffle 102 is connected to the inner side of the left dividing plate 101 by a connecting rib 103, which is used to fix the left dividing plate and provide support; one side of the left dividing plate 101 and one side of the left outer baffle 102 are respectively connected to the left dividing angle adjustment device 2; the left vertical plate 114 of the stepper motor guide rail is fixedly connected to the front side of the left front panel 115 of the cutter head by bolts; the stepper motor telescopic guide rail 105 is installed on the left vertical plate 114 of the stepper motor guide rail; the left lower support plate 106 is connected to the left vertical plate 114 of the stepper motor guide rail; the stepper motor main unit 104 is installed on the left lower support plate. The stepper motor telescopic rod 109 is connected to the stepper motor host 104 via a transmission connection. The upper slider 107 and the lower slider 108 are slidably mounted on the upper and lower sides of the stepper motor telescopic guide rail 105, respectively. One end of the bent connecting plate 113 is connected to the stepper motor telescopic rod 109, and the other end is connected to the upper slider 107. The upper end of the other side of the left dividing plate 101 is connected to the upper slider 107 via a second welding strip 111. The lower end of the other side of the left dividing plate 101 is connected to the lower slider 108 via a first welding strip 110. The other side of the left outer baffle 102 is connected to the lower slider 108 via a third welding strip 112.

[0077] The stepper motor host 104 drives the stepper motor telescopic rod 109 to extend and retract. The stepper motor telescopic rod 109 drives the upper slider 107 to slide along the stepper motor telescopic guide rail 105 through the bending connecting plate 113. The upper slider 107 drives the left dividing main board 101 to move up and down through the second welding strip 111. The lower slider 108 slides synchronously with the left dividing main board 101 through the first welding strip 110. The lower slider 108 drives the left outer baffle 102 to move up and down synchronously through the third welding strip 112, thereby realizing the overall height adjustment of the divider.

[0078] like Figure 6 As shown, the left tiller angle adjustment device 2 includes a rotatable left tiller tip plate 201, a fixed square plate 202, a fixed plate with shaft hole 203, and a locking nut;

[0079] The rotatable left tillering tip 201 has a threaded shaft on one side; the fixed square plate 202 is connected to the left outer baffle 102 on one side; the fixed plate 203 with shaft hole is connected to the other side of the fixed square plate 202 by bolts, and is rotatably connected to the threaded shaft of the rotatable left tillering tip 201; the locking nut is threadedly engaged with the threaded shaft and is used to manually lock the rotation angle of the rotatable left tillering tip 201.

[0080] like Figure 7 As shown, the threaded shaft of the rotatable left dividing tip plate 201 is installed in the shaft hole of the fixing plate 203 with shaft hole. When rotated counterclockwise, the dividing angle is expanded, and when rotated clockwise, the dividing angle is reduced. After adjustment, it is fixed by locking nut. The dividing angle can be freely adjusted according to the degree of crop drooping to ensure that both left and right stems are divided to the cutting platform for cutting.

[0081] The left dividing angle adjustment device 2 also includes a guide bar 204; the guide bar 204 is disposed on the fixing plate 203 with shaft hole, and the other end of the guide bar 204 contacts one side surface of the left dividing main plate 101, which is used to prevent crop stems from getting tangled and to guide the crop smoothly into the cutting platform.

[0082] The threaded shaft side of the rotatable left dividing tip plate 201 can rotate within the shaft hole of the fixed plate 203 with shaft hole to adjust the dividing angle. After adjustment, it is locked by locking nut. The crop enters the header through the rotatable left dividing tip plate 201. To prevent the crop stalks from getting tangled in the adjustment mechanism and to ensure smooth guidance, a guide strip 204 is welded to the fixed plate 203 with shaft hole. The other end of the guide strip 204 contacts the surface of the left dividing main plate 101 to ensure smooth flow of the crop stalks.

[0083] like Figure 8 and 9 As shown, the control unit 304 calculates the target tiller height based on the crop height H and the stubble height h. And based on the current height of the left divider The difference between the target height L and the current height of the right divider. The difference between the height L and the target height is used to calculate the number of pulses, which in turn drives the drive elements of the left divider height adjustment device 1 and the right divider height adjustment device 3 to move their respective dividers up and down to the target height.

[0084] The divider height adjustment control system adopts an open-loop control method. After the control unit 304 calculates the target height based on the sensor detection value, it directly outputs pulses to drive the stepper motor host 104 to complete the height adjustment.

[0085] In one specific embodiment of the present invention, the crop height detection sensor 301 detects the crop height H, the stubble height detection sensor 302 detects the stubble height h, and the divider height detection sensor 303 detects the divider height L0, which are then input to the control unit 304. The control unit 304 is generally installed in the cab. Subsequently, based on the height difference, it outputs corresponding pulses to drive the stepper motor host 104 to adjust the divider height to the optimal position. The control unit adopts an open-loop control method, based on the height difference... After calculating the required number of pulses according to the stepper motor pulse formula, the output is directly used to drive the stepper motor to complete the height adjustment of the divider.

[0086] In one specific embodiment of the invention, the optimal tillering position is defined as 1 / 3 to 1 / 2 of the distance between the crop and the cutter, i.e. to 2. The output pulse can be calculated by L-L0 according to the stepper motor pulse formula. Implementation process: First, crop height detection sensor 301 detects crop height H, stubble height detection sensor 302 detects stubble height h, and divider height detection sensor 303 detects divider height. The input is sent to the control unit 304, which is installed in the cab. The control unit 304 then outputs corresponding pulses according to the height difference L-L0 to drive the stepper motor host 104 to move. The stepper motor host 104 drives the stepper motor telescopic guide rail 105 to extend and retract. In turn, the stepper motor telescopic rod 109 drives the upper slider 107 to slide on the stepper motor telescopic guide rail 105, which in turn drives the left dividing main board 101 to slide. The left dividing main board 101 is connected to the lower sliding block 108, so the lower sliding block 108 also slides up and down and plays a supporting role. The left outer baffle 102 is also fixedly connected to the lower sliding block 108 through the third welding strip 112, and the left outer baffle 102 is connected to the left dividing main board 101 through the connecting rib 103, which in turn drives the left outer baffle 102 and the connecting rib 103 to slide up and down, completing the height adjustment of the entire divider. The adjustment on the right side is the same as that on the left side.

[0087] Regarding the adjustment of the dividing angle, the opening angle is adjusted according to the cutting width and crop maturity. First, unscrew the locking nut, and then rotate the rotatable left dividing tip 201. Rotating counterclockwise expands the dividing angle, and rotating clockwise reduces the dividing angle. After the adjustment is completed, tighten the locking nut again to fix the angle of the rotatable left dividing tip. The crop can be smoothly guided into the header under the action of the guide strip to avoid tangling. The adjustment on the right side is the same as that on the left.

[0088] In one specific embodiment of the present invention, the control unit 304 is an STM32F1 development board; the types of sensors include, but are not limited to, lidar, ultrasonic, and contour plate angle sensors.

[0089] A harvester includes a divider for regenerated rice with adjustable dividing height and angle, thus having the aforementioned beneficial effects, which will not be elaborated here.

[0090] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0091] The detailed descriptions listed above are merely specific illustrations of feasible embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A rice divider with adjustable dividing height and angle for regenerated rice, characterized in that, It includes a left divider height adjustment device (1), a left divider angle adjustment device (2), a right divider height adjustment device (3), a right divider angle adjustment device (4), and a divider height adjustment control system; The left divider height adjustment device (1) is installed on the left side of the header; The left divider angle adjustment device (2) is installed on the left divider height adjustment device (1); The right divider height adjustment device (3) is installed on the right side of the header; The right divider angle adjustment device (4) is installed on the right divider height adjustment device (3); The left divider height adjustment device (1) and the right divider height adjustment device (3) are used to drive the divider to move up and down in the vertical direction, and the left divider angle adjustment device (2) and the right divider angle adjustment device (4) are used to adjust the opening angle of the divider tip. The divider height adjustment control system includes sensors and a control unit (304); the sensors include a crop height detection sensor (301), a stubble height detection sensor (302), and a divider height detection sensor (303); the divider height detection sensor (303) includes a left divider height detection sensor and a right divider height detection sensor; The crop height detection sensor (301) is used to detect the crop height H; The stubble height detection sensor (302) is used to detect the stubble height h; The left divider height detection sensor is used to detect the current height of the left divider. ; The right divider height detection sensor is used to detect the current height of the right divider. ; The control unit (304) is electrically connected to the crop height detection sensor (301), the stubble height detection sensor (302), the left divider height detection sensor, the right divider height detection sensor, the left divider height adjustment device (1), and the right divider height adjustment device (3), respectively.

2. The rice divider with adjustable dividing height and angle for regenerated rice according to claim 1, characterized in that, The left divider height adjustment device (1) includes a left divider main board (101), a left outer baffle (102), a stepper motor main unit (104), a stepper motor telescopic guide rail (105), a left lower support plate (106), an upper slider (107), a lower slider (108), a stepper motor telescopic rod (109), a bending connecting plate (113), a stepper motor guide rail left upright plate (114), and a left front panel of the cutting table (115). The left outer baffle (102) is connected to the inner side of the left branch main board (101) by a connecting rib (103); One side of the left tiller main board (101) and one side of the left outer baffle (102) are respectively connected to the left tiller angle adjustment device (2); The left vertical plate (114) of the stepper motor guide rail is connected to the front side of the left front panel (115) of the cutting table; The stepper motor telescopic guide rail (105) is installed on the left vertical plate (114) of the stepper motor guide rail; The lower left support plate (106) is connected to the left vertical plate (114) of the stepper motor guide rail; The stepper motor host (104) is mounted on the lower left support plate (106) and is electrically connected to the control unit (304); The stepper motor telescopic rod (109) is connected to the stepper motor main unit (104); The upper slider (107) and the lower slider (108) are slidably mounted on the upper and lower sides of the stepper motor telescopic guide rail (105), respectively. One end of the bent connecting plate (113) is connected to the stepper motor telescopic rod (109), and the other end is connected to the upper slider (107); The upper end of the other side of the left branch main board (101) is connected to the upper slider (107); The lower end of the other side of the left branch main board (101) is connected to the lower slider (108); The other side of the left outer baffle (102) is connected to the lower slider (108).

3. The rice divider with adjustable dividing height and angle for regenerated rice according to claim 2, characterized in that, The stepper motor host (104) drives the stepper motor telescopic rod (109) to extend and retract. The stepper motor telescopic rod (109) drives the upper slider (107) to slide along the stepper motor telescopic guide rail (105) through the bending connecting plate (113). The upper slider (107) drives the left dividing main board (101) to move up and down. The lower slider (108) slides synchronously with the left dividing main board (101), and the lower slider (108) drives the left outer baffle (102) to move up and down synchronously, so as to realize the overall height adjustment of the divider.

4. The rice divider with adjustable dividing height and angle for regenerated rice according to claim 1, characterized in that, The left tiller angle adjustment device (2) includes a rotatable left tiller tip plate (201), a fixed square plate (202), a fixed plate with shaft hole (203), and a locking nut; The rotatable left dividing tip plate (201) is provided with a threaded shaft on one side; One side of the fixed square plate (202) is connected to the left outer baffle (102); The fixed plate (203) with shaft hole is connected to the other side of the fixed square plate (202) by bolts, and is rotatably connected to the threaded shaft of the rotatable left dividing tip plate (201); The locking nut engages with the threaded shaft to lock the rotation angle of the rotatable left dividing tip plate (201).

5. The rice divider with adjustable dividing height and angle for regenerated rice according to claim 4, characterized in that, The threaded shaft of the rotatable left tillering tip (201) is installed in the shaft hole of the fixed plate (203) with shaft hole. When rotated counterclockwise, the tillering angle is increased, and when rotated clockwise, the tillering angle is decreased. After adjustment, it is fixed by locking nut.

6. The rice divider with adjustable dividing height and angle for regenerated rice according to claim 4, characterized in that, The left tillering angle adjustment device (2) also includes a tillering bar (204); The guide bar (204) is mounted on the fixed plate (203) with shaft hole. The other end of the guide bar (204) contacts one side surface of the left dividing main plate (101) to prevent crop stems from getting tangled and to guide the crop smoothly into the cutter head.

7. The rice divider with adjustable dividing height and angle for regenerated rice according to claim 1, characterized in that, The control unit (304) calculates the target tiller height based on the crop height H and the stubble height h. And based on the current height of the left divider The difference between the target height L and the current height of the right divider. The difference between the height L and the target height is used to calculate the number of pulses, and drive the driving elements of the left divider height adjustment device (1) and the right divider height adjustment device (3) to move their respective dividers up and down to the target height.

8. The rice divider with adjustable dividing height and angle for regenerated rice according to claim 1, characterized in that, The right divider height adjustment device (3) has the same structure as the left divider height adjustment device (1) and is installed symmetrically. The right divider angle adjustment device (4) has the same structure as the left divider angle adjustment device (2) and is installed symmetrically.

9. The rice divider with adjustable dividing height and angle for regenerated rice according to claim 2, characterized in that, The divider height adjustment control system adopts an open-loop control method. After the control unit (304) calculates the target height based on the sensor detection value, it directly outputs pulses to drive the stepper motor host (104) to complete the height adjustment.

10. A harvester, characterized in that, The rice divider includes an adjustable divider height and angle for regenerated rice as described in any one of claims 1 to 9.

Images