Reed harvester loading and unloading system and control method thereof and harvester

Abstract

The present invention provides a reed harvester loading and unloading system and a control method thereof and a harvester, comprising a header, a loading and unloading device and a control unit; the loading and unloading device is installed on the reed harvester and is located behind the header; the loading and unloading device comprises at least two loading and unloading boxes, a lifting mechanism and a rotating device; the loading and unloading box is installed on the rotating device, and the rotating base of the rotating device is installed on the lifting mechanism; the loading and unloading box is located behind the header and is used to receive the reeds harvested by the header; when the first loading and unloading box at the loading position is loaded after a time t, the control unit controls the rotating device to rotate and exchange the first loading and unloading box and the second loading and unloading box, moves the first loading and unloading box to the unloading position, and moves the second loading and unloading box to the loading position, the second loading and unloading box continues to receive the reeds harvested by the header, and the control unit controls the first loading and unloading box to unload. The present invention can realize the loading of reed crops without stopping the machine for unloading, thereby improving the harvesting efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of intelligent agricultural machinery, and in particular relates to a reed harvester loading and unloading system and a control method thereof, and a harvester. Background Art

[0002] Reed is a tall grass that grows mostly in water and land. It has a fine texture and is rich in cellulose. At present, the commonly used loading method is single-box loading. When the box is full, the machine stops unloading through manual observation and control, and manual assistance is required during unloading. After unloading, the machine is restarted, which wastes a lot of working time and manpower. In particular, as agricultural machinery develops in the direction of intelligence, traditional manual boxes are difficult to meet the development trend. In addition, there is no use of rotary boxes in harvesting machinery for tall crops such as reeds.

[0003] Currently, most reeds are manually stacked into boxes after harvesting. When the box is full, the machine needs to be stopped for manual unloading. This traditional unloading method is time-consuming and labor-intensive, with excessive labor intensity and low efficiency, and its working environment is also unsafe. The present invention provides a reed harvester loading and unloading system and a control method thereof, which combine the structure of the reed harvester with the basic parameters of the reed and can automatically complete unloading without stopping the machine. Summary of the invention

[0004] In view of the above technical problems, the present invention provides a reed harvester loading and unloading system and a control method thereof, which can simultaneously realize the loading and automatic unloading of reed crops without stopping the machine for unloading, thereby effectively reducing the labor intensity of the staff and improving the harvesting efficiency.

[0005] The present invention also provides a harvester, comprising the above-mentioned reed harvester loading and unloading system.

[0006] Note that the description of these objectives does not prevent the existence of other objectives. One embodiment of the present invention does not need to achieve all of the above objectives. Objectives other than the above objectives can be extracted from the description of the specification, drawings, and claims.

[0007] The present invention achieves the above technical objectives through the following technical means.

[0008] A reed harvester loading and unloading system comprises a header, a loading and unloading device and a control unit; the loading and unloading device is mounted on the reed harvester and is located behind the header; the loading and unloading device comprises at least two loading and unloading boxes, a lifting mechanism and a rotating device; the two loading and unloading boxes are respectively a first loading and unloading box and a second loading and unloading box, the first loading and unloading box and the second loading and unloading box are mounted on the rotating device, and the rotating base of the rotating device is mounted on the lifting mechanism; the loading and unloading box is located behind the header and is used to receive the reeds harvested by the header; the control unit is respectively connected to the loading and unloading box, the lifting mechanism and the rotating device; when the first loading and unloading box at the loading position is loaded after a time t, the control unit controls the rotating device to rotate and exchange the first loading and unloading box and the second loading and unloading box, moves the first loading and unloading box to the unloading position, and moves the second loading and unloading box to the loading position, the second loading and unloading box continues to receive the reeds harvested by the header, and the control unit controls the lifting mechanism to tilt the first loading and unloading box at the unloading position, and controls the first loading and unloading box to unload.

[0009] In the above scheme, t is the time required to fill the material box once, and t is calculated according to the following formula:

[0010]

[0011] Among them, L1 is the width of the loading space of the material box; L2 is the height of the loading space of the material box; C1 is the diameter of a large bundle of reeds; n is the number of rounds required for the knotter to tie a large bundle, k is the total width of the cutting width; l is the finger length; v1 is the forward speed of the harvester; v2 is the conveying speed of the longitudinal clamping device; and C is the longitudinal clamping gap.

[0012] In the above solution, at least one side of the loading and unloading box is open, and a material conveying mechanism is provided at the bottom of the loading and unloading box, and the material conveying mechanism is used for unloading.

[0013] Furthermore, the loading and unloading box is also provided with a box load-bearing bracket and a steel rope; the box load-bearing bracket is connected to the rotating device through the steel rope.

[0014] Furthermore, the steel ropes include three, one end of which is connected to the load-bearing bracket of the material box, and the other end is connected to the rotating device; one end of the remaining two steel ropes are respectively connected to the rear panel of the material box, and the other end is connected to the rotating device. The three steel ropes are arranged in an isosceles triangle when viewed from top to bottom.

[0015] In the above scheme, the material conveying mechanism includes a roller, a belt and an electric motor; the belt is installed on the roller, the roller is connected to the electric motor, the electric motor drives the roller to drive the belt to move, and the electric motor is connected to the control unit.

[0016] In the above scheme, the lifting mechanism includes a lifting mechanism base, a lifting mechanism base wheel, a lifting mechanism load-bearing pillar, a piston, a lifting mechanism bottom surface, a rotating component, a protective support, a lifting mechanism support, a rotating shaft and a hydraulic cylinder group; the lifting mechanism base is connected to the rotating base; the lifting mechanism base wheel is arranged below the lifting mechanism base; the lifting mechanism bottom surface is arranged on the lifting mechanism base, and a rotating component, a protective support, a lifting mechanism support, and a rotating shaft are arranged on the lifting mechanism bottom surface, and a lifting mechanism load-bearing pillar is arranged at the bottom of the lifting mechanism bottom surface; the bottom of the rotating component is connected to the lifting mechanism bottom surface, and the rotating component is connected to the lifting mechanism support through a bearing; the protective support is arranged on the rotating component; one end of the piston is connected to the lifting mechanism load-bearing pillar, and the other end passes through the lifting mechanism bottom surface and is connected to the lifting mechanism support through a rotating shaft; the hydraulic cylinder group is connected to the piston, and the hydraulic cylinder group is connected to the control unit; when the loading and unloading box at the loading position is loaded after a time t, the control unit controls the hydraulic cylinder group to push the piston to adjust the lifting mechanism support to a preset height, so that the loading and unloading box at the unloading position is tilted.

[0017] In the above scheme, the rotating device also includes a rotating mechanism load-bearing beam, a rotating mechanism shaft and an electric motor; the loading and unloading box is connected to the rotating mechanism load-bearing beam; the rotating mechanism load-bearing beam is connected to one end of the rotating mechanism shaft, the other end of the rotating mechanism shaft is connected to the electric motor, the electric motor is connected to the control unit, and the electric motor is installed on the rotating base.

[0018] A harvester comprises the reed harvester loading and unloading system.

[0019] A control method according to the reed harvester loading and unloading system comprises the following steps:

[0020] When the first loading and unloading box at the loading position has completed loading after time t, the control unit controls the rotating device to rotate the first loading and unloading box and the second loading and unloading box, moves the first loading and unloading box to the unloading position, and moves the second loading and unloading box to the loading position. The second loading and unloading box continues to receive the reeds harvested by the harvesting platform. The control unit controls the lifting mechanism to tilt the first loading and unloading box at the unloading position, and controls the first loading and unloading box to unload.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The reed harvester loading and unloading system of the present invention adopts a rotating device to automatically rotate and change boxes, which can realize the rotation loading, automatic position change, and automatic unloading of the loading and unloading boxes, and there is no need to stop the machine for unloading, which effectively reduces the labor intensity of the staff. The reed crop harvester of the present invention can realize automatic unloading while loading, avoiding the problem of having to wait for a long time to unload after the box is full of materials before continuing to load, thereby improving the working efficiency of the harvester.

[0023] Note that the description of these effects does not prevent the existence of other effects. One embodiment of the present invention does not necessarily have all of the above effects. Effects other than the above can be clearly seen and extracted from the description of the specification, drawings, claims, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a reed harvester loading and unloading system according to one embodiment of the present invention.

[0025] Figure 2 It is a schematic diagram of the structure of a loading and unloading box according to one embodiment of the present invention.

[0026] Figure 3 Schematic diagram of the lifting mechanism structure of an embodiment of the present invention, wherein Figure 3 a is the overall schematic diagram of the lifting mechanism. Figure 3 b is a partial schematic diagram of the lifting mechanism.

[0027] Figure 4 It is a schematic diagram of the operating state of the lifting mechanism according to one embodiment of the present invention.

[0028] Figure 5 It is a schematic structural diagram of a rotating device according to one embodiment of the present invention.

[0029] Figure 6 It is a schematic diagram of the structure of a header according to one embodiment of the present invention.

[0030] Figure 7 The figure is a schematic diagram of stacking reed bundles according to one embodiment of the present invention.

[0031] Figure 8 The present invention is a flowchart of automatic unloading and box changing of reed crops according to one embodiment of the present invention.

[0032] In the figure, 1. cutting platform; 2. first loading and unloading box; 3. second loading and unloading box; 4. lifting mechanism; 5. rotating device; 6. crawler; 7. control unit; 8. cab, 9. platform; 201. right panel of the box; 202. left panel of the box; 203. rear panel of the box; 204. bottom panel of the box; 205. load-bearing bracket of the box; 206. steel rope; 207. material conveying mechanism; 208. packaging; 209. buffer pad; 401. lifting mechanism base; 402. lifting mechanism base wheels; 403. lifting mechanism load-bearing pillar; 404. piston; 405. bottom surface of the lifting mechanism; 406. rotating component; 407. protection support; 408. lifting mechanism support; 409. rotating shaft; 410. hydraulic cylinder group; 501. rotating mechanism load-bearing beam; 502. rotating mechanism rotating shaft; 503. electric motor; 504. rotating base. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "front", "back", "left", "right", "up", "down", "axial", "radial", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Example 1

[0037] A reed harvester loading and unloading system, comprising a cutting platform 1, a loading and unloading device and a control unit 7;

[0038] The loading and unloading device is installed on the reed harvester and is located behind the cutting platform 1;

[0039] The loading and unloading device includes at least two loading and unloading boxes, a lifting mechanism 4 and a rotating device 5; the two loading and unloading boxes are respectively a first loading and unloading box 2 and a second loading and unloading box 3, the first loading and unloading box 2 and the second loading and unloading box 3 are installed on the rotating device 5, and the rotating base 504 of the rotating device 5 is installed on the lifting mechanism 4; the loading and unloading box is located behind the cutting platform 1, and is used to receive the reeds harvested by the cutting platform 1;

[0040] The control unit 7 is connected to the loading and unloading box, the lifting mechanism and the rotating device 5 respectively; when the first loading and unloading box 2 at the loading position is loaded after a time t, the control unit 7 controls the rotating device 5 to rotate and exchange the first loading and unloading box 2 and the second loading and unloading box 3, move the first loading and unloading box 2 to the unloading position, and move the second loading and unloading box 3 to the loading position, the second loading and unloading box 3 continues to receive the reeds harvested by the cutting platform 1, and the control unit 7 controls the lifting mechanism 4 to tilt the first loading and unloading box 2 at the unloading position, and controls the first loading and unloading box 2 to unload. Preferably, the control unit 7 is installed in the cab 8.

[0041] t is the time required to fill the material box once, and t is calculated according to the following formula:

[0042] Among them, L1 is the width of the loading space of the material box; L2 is the height of the loading space of the material box; C1 is the diameter of a large bundle of reeds; n is the number of rounds required for the knotter to tie a large bundle, k is the total width of the cutting width; l is the finger length; v1 is the forward speed of the harvester; v2 is the conveying speed of the longitudinal clamping device; C is the longitudinal clamping gap, and the brackets [] are for rounding off decimals.

[0043] Preferably, the loading and unloading device is connected to the chassis and is located behind the platform 9. The platform 9 is a workbench for people to stand on to stack the reeds harvested by the cutting platform 1 into the loading and unloading device, or for installing a mechanical arm, which stacks the reeds harvested by the cutting platform 1 into the loading and unloading device.

[0044] After the reed crop is harvested by the cutting platform 1, it can enter the first loading and unloading box 2 at the loading position by manual or mechanical arms. When the first loading and unloading box 2 is full, the first loading and unloading box 2 and the second loading and unloading box 3 are rotated and exchanged through the rotating device 5. The structure of the cutting platform 1 can refer to the invention with application number 202311440805.3. The first loading and unloading box 2 and the second loading and unloading box 3 are respectively connected to the rotating device 5 with steel ropes 206; the lifting mechanism 4 is connected to the rotating base 504 in the rotating device 5, and is located below the loading and unloading box at the unloading position.

[0045] In a specific embodiment of the present invention, at least one side of the loading and unloading box is open, and a material conveying mechanism 207 is provided at the bottom of the loading and unloading box, and the material conveying mechanism 207 is used for unloading.

[0046] Preferably, the loading and unloading box includes a right panel 201 of the box, a left panel 202 of the box, a rear panel 203 of the box, and a bottom panel 204 of the box.

[0047] Preferably, the loading and unloading box is further provided with a box bearing bracket 205 and a steel rope 206; the box bearing bracket 205 is connected to the rotating device 5 via the steel rope 206. The box bearing bracket 205 provides support, protection and shaping for the loading and unloading box to prevent the loading and unloading box 2 from being deformed or falling apart due to its large weight.

[0048] Preferably, the steel ropes 206 include three steel ropes, one end of one of the steel ropes 206 is connected to the material box load-bearing bracket 205, and the other end is connected to the rotating device 5; one end of the remaining two steel ropes 206 are respectively connected to the material box rear panel 203, and the other end is connected to the rotating device 5. The three steel ropes 206 are arranged in an isosceles triangle when viewed from top to bottom, which improves the stability of reed crop transportation and unloading.

[0049] In a specific embodiment of the present invention, the material conveying mechanism 207 includes a roller, a belt and an electric motor; the belt is installed on the roller, the roller is connected to the electric motor, the electric motor drives the roller to drive the belt to move, and the electric motor is connected to the control unit 7.

[0050] In a specific embodiment of the present invention, the loading and unloading box is also provided with a buffer pad 209; the buffer pad 209 is welded to the bottom surface of the box bottom panel 204 and is located between the box load-bearing bracket 205 and the box rear panel 203, which is beneficial to prevent the first loading and unloading box 2 and the second loading and unloading box 3 from colliding with the lifting mechanism 4 during rotation, thereby improving the service life.

[0051] Preferably, a packaging plate 208 is added between the belt of the material conveying mechanism 207 and the right panel 201 and the left panel 202 of the material box to prevent the reed crops from sliding onto the bottom panel of the material box during transportation and causing the transportation mechanism to get stuck, thereby ensuring the stability of transportation.

[0052] The first loading and unloading box 2 and the second loading and unloading box 3 have the same structure.

[0053] like Figure 3 a and Figure 3 As shown in FIG. 2 b, the lifting mechanism 4 includes a lifting mechanism base 401, a lifting mechanism base wheel 402, a lifting mechanism load-bearing support 403, a piston 404, a lifting mechanism bottom surface 405, a rotating component 406, a protective support 407, a lifting mechanism support 408, a rotating shaft 409 and a hydraulic cylinder group 410;

[0054] The lifting mechanism base 401 is connected to the rotating base 504; the lifting mechanism base wheels 402 are arranged below the lifting mechanism base 401; the lifting mechanism bottom surface 405 is arranged on the lifting mechanism base 401, and the lifting mechanism bottom surface 405 is provided with a rotating component 406, a protective support 407, a lifting mechanism support 408, and a rotating shaft 409, and the bottom of the lifting mechanism bottom surface 405 is provided with a lifting mechanism load-bearing pillar 403; the bottom of the rotating component 406 is connected to the lifting mechanism bottom surface 405, and the rotating component 406 is connected to the lifting mechanism support 408 through a bearing; the protective support 407 is arranged on the rotating component 406, which is beneficial to prevent the material box from tipping over due to excessive angle when unloading, thereby improving the stability of unloading. One end of the piston 404 is connected to the load-bearing support 403 of the lifting mechanism, and the other end passes through the bottom surface 405 of the lifting mechanism and is connected to the lifting mechanism support 408 through the rotating shaft 409; the hydraulic cylinder group 410 is connected to the piston 404, and the hydraulic cylinder group 410 is connected to the control unit 7; when the loading and unloading box at the loading position is loaded after a time t, the control unit 7 controls the hydraulic cylinder group 410 to push the piston 404, and adjusts the lifting mechanism support 408 to a preset angle, so that the loading and unloading box at the unloading position is tilted to facilitate unloading.

[0055] Preferably, the lifting mechanism 4 also includes a displacement sensor, which is used to detect the displacement of the piston 404 and transmit it to the control unit 7. When the displacement of the piston 404 reaches a preset value, the extension is stopped and the lifting mechanism support 408 is adjusted to a preset angle.

[0056] Preferably, the lifting mechanism base wheels 402 include four wheels uniformly welded below the lifting mechanism base 401 .

[0057] Preferably, the lifting mechanism load-bearing pillar 403 is installed at the front bottom of the lifting mechanism bottom surface 405 to provide support for the lifting mechanism.

[0058] The lifting mechanism support 408 is connected to the piston 404 via a rotating shaft 409 and is located below the loading and unloading box. Preferably, the distance between the lifting mechanism support 408 and the bottom panel 204 of the box is twice the thickness of the buffer pad 209 .

[0059] Figure 4 As a preferred implementation of the lifting mechanism 4, the control unit 7 controls the hydraulic cylinder group 410 to push the piston 404, and adjusts the lifting mechanism support 408 to a suitable height and angle, thereby ensuring stable unloading of the loading and unloading box.

[0060] like Figure 5As shown, the rotating device 5 also includes a rotating mechanism load-bearing beam 501, a rotating mechanism shaft 502 and an electric motor 503; the rotating mechanism load-bearing beam 501 is connected to one end of the rotating mechanism shaft 502, the other end of the rotating mechanism shaft 502 is connected to the electric motor 503, the electric motor 503 is connected to the control unit 7, and the electric motor 503 is installed on the rotating base 504.

[0061] The rotating mechanism load-bearing beam 501 is disposed at the top of the rotating mechanism 5 and is connected to the first loading and unloading box 2 and the second loading and unloading box 3 via a steel rope 206 .

[0062] When the first loading and unloading box 2 is full of materials and the second loading and unloading box 3 has finished unloading materials, the control unit 7 detects through the angle sensor to operate the electric motor 503 to drive the rotating shaft 502 of the rotating mechanism to rotate.

[0063] The rotating mechanism base 504 is disposed at the bottom of the rotating device 5 and is connected to the lifting mechanism base 401 at the rear.

[0064] Preferably, the rotating device 5 also includes an angle sensor, which is used to detect the rotation angle of the rotating mechanism shaft 502 and transmit it to the control unit 7. When the rotation angle of the rotating mechanism shaft 502 reaches a preset value of 180°, the electric motor 503 is controlled to stop, and the positions of the first loading and unloading box 2 and the second loading and unloading box 3 are switched. The control unit 7 controls the material conveying mechanism 207 to start running, and the belt drives the reed crop to run.

[0065] Preferably, after the lifting mechanism 4 of the present invention has finished operating, the material conveying mechanism 207 starts to transport the reed crop, which can deal with the uneven force and incomplete unloading caused by the high stacking of reeds, making it easier to transport the reeds when unloading.

[0066] like Figure 6 As shown:

[0067] k is the total width of the cutting width,

[0068] l is the finger length,

[0069] h is the average height of reeds,

[0070] ρ is the average density of reeds,

[0071] v1 is the forward speed of the harvester,

[0072] The feed quantity Q1 meets the following conditions:

[0073] Q1=klhρv1

[0074] v2 is the conveying speed of the longitudinal clamping device,

[0075] The longitudinal clamping gap is constant at C. At the same time, C is the diameter of the reed that passes through in a single pass during the upright clamping and conveying process.

[0076] The feed volume Q2 allowed for a single pass meets the following conditions:

[0077]

[0078] Let N be the number of rounds required for the longitudinal clamping and conveying device under the feed amount of Q1, where N is an integer, It is expressed as Q1 divided by Q2 and then rounded to the integer.

[0079]

[0080] Let n be the number of turns required by the knotter to tie a large bale;

[0081] n1 is the number of bundles or times required to be tied under the feeding amount Q1, It is expressed as N divided by n and then rounded to the integer.

[0082]

[0083] like Figure 7 As shown, L1 is the width of the material box loading space;

[0084] L2 is the height of the material box loading space;

[0085] n2 is the maximum number of bundles that the bin can hold;

[0086] C1 is the diameter of the bundle of reeds;

[0087] Indicates rounding;

[0088]

[0089] Let α be the number of feeds required to fill the bin; It is expressed as n2 divided by n1 and then rounded to the integer without decimal point.

[0090]

[0091] Q1 is the feeding amount per unit time, and α is actually the number of seconds.

[0092] According to the crop properties and machine operating parameters, the time t required to fill the feed box once is approximately:

[0093]

[0094] And the belt conveying speed v3 during unloading in the material conveying mechanism 207, h is the average height of the reeds;

[0095] The maximum time t0 required for unloading is:

[0096]

[0097] Because the loading and unloading box is lifted by the lifting mechanism at a certain angle and affected by gravity, the actual time t1 required for unloading satisfies:

[0098] t1≤t0

[0099] To meet control needs:

[0100] t0<t

[0101] So V3 needs to meet the following requirements:

[0102] The brackets [] indicate rounding down decimals.

[0103] From this we can see that the time t0 required to unload the material from the loading and unloading box is less than the time t required to load and unload the material from the loading and unloading box.

[0104] A control method according to the reed harvester loading and unloading system comprises the following steps:

[0105] When the first loading and unloading box 2 at the loading position has completed loading after time t, the control unit 7 controls the rotating device 5 to rotate the first loading and unloading box 2 and the second loading and unloading box 3, moves the first loading and unloading box 2 to the unloading position, and moves the second loading and unloading box 3 to the loading position, the second loading and unloading box 3 continues to receive the reeds harvested by the harvesting platform 1, and the control unit 7 controls the lifting mechanism 4 to tilt the first loading and unloading box 2 at the unloading position, and controls the first loading and unloading box 2 to unload, and the cycle is repeated to complete the loading and unloading of the reeds.

[0106] When the first loading and unloading box 2 is loaded after time t, the control unit 7 controls the electric motor 503 to drive the rotating mechanism to rotate 180°. The time required for rotation is generally less than the time required for the knotter to complete a knotting. At this time, the second loading and unloading box 3 rotates to the position of the first loading and unloading box 2 and starts loading. After time t has passed, loading stops. At the same time, the first loading and unloading box 2 rotates to the position of the second loading and unloading box 3, and the control unit 7 operates the hydraulic cylinder group 410, thereby driving the piston 404 to adjust the box to a suitable height and angle; further, the control unit 7 controls the material conveying mechanism 207 to start unloading, and after time t0, the material conveying mechanism 207 stops operating.

[0107] In a specific embodiment of the present invention, Figure 8 As shown, the control method of the reed harvester loading and unloading system includes the following steps

[0108] S1: The harvester starts to move forward, and the speed sensor detects that the forward speed of the harvester is v1;

[0109] S2: The loading and unloading box at the loading position starts loading, and the speed sensor detects that the conveying speed of the longitudinal clamping device is v2;

[0110] S3: Calculate the time t required to fill the loading and unloading box according to the machine parameters, the forward speed v1 of the harvester and the conveying speed v2 of the longitudinal clamping device;

[0111] S4: After time t, the loading and unloading box is loaded, and the control unit 7 controls the rotating device 5 to rotate 180 degrees to switch the loading and unloading boxes at the loading position and the unloading position;

[0112] S5: The control unit 7 controls the lifting mechanism 4 to adjust the loading and unloading box at the unloading position to a preset angle, the material conveying mechanism 207 starts to operate, the speed sensor measures the conveying speed of the material conveying mechanism 207 to be v3, and the loading and unloading box at the loading position is loaded;

[0113] S6: Calculate the time t0 required for the loading and unloading box to complete unloading based on the average height h of the reed crop and the conveying speed v3 of the material conveying mechanism 207;

[0114] S7: After time t0, the loading and unloading box has finished unloading, the material conveying mechanism 207 stops running, and the control unit 7 adjusts the loading and unloading box after unloading to a horizontal angle;

[0115] S8: After time t-t0 has passed, the loading and unloading box is loaded, and steps S4, S5, S7 and S8 are repeated in a cycle.

[0116] Example 2

[0117] A reed harvester includes the reed harvester loading and unloading system described in Example 1, which has the same beneficial effects and will not be described in detail.

[0118] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0119] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention. They are not intended to limit the scope of protection of the present invention. All equivalent embodiments or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A reed harvester loading and unloading system, characterized in that: It comprises a header (1), a loading and unloading device and a control unit (7); The loading and unloading device is installed on the reed harvester and is located behind the harvesting platform (1); The loading and unloading device comprises at least two loading and unloading boxes, a lifting mechanism (4) and a rotating device (5); the two loading and unloading boxes are respectively a first loading and unloading box (2) and a second loading and unloading box (3); the first loading and unloading box (2) and the second loading and unloading box (3) are mounted on the rotating device (5); and a rotating base (504) of the rotating device (5) is mounted on the lifting mechanism (4); the loading and unloading box is located behind the cutting platform (1) and is used to receive the reeds harvested by the cutting platform (1); The control unit (7) is connected to the loading and unloading box, the lifting mechanism and the rotating device (5) respectively; when the first loading and unloading box (2) at the loading position has finished loading after a period of time t, the control unit (7) controls the rotating device (5) to rotate and exchange the first loading and unloading box (2) and the second loading and unloading box (3), move the first loading and unloading box (2) to the unloading position, and move the second loading and unloading box (3) to the loading position, the second loading and unloading box (3) continues to receive the reeds harvested by the harvesting platform (1), and the control unit (7) controls the lifting mechanism (4) to tilt the first loading and unloading box (2) at the unloading position, and controls the first loading and unloading box (2) to unload; t is the time required to fill the material box once, and t is calculated according to the following formula: ； in, The width of the material box loading space; L 2 is the height of the material box loading space; is the diameter of a large bundle of reeds; n is the number of rounds required for the knotter to tie a large bundle, k is the total width of the cutting; l is the finger length; is the forward speed of the harvester; is the conveying speed of the longitudinal clamping device; C is the longitudinal clamping gap; brackets [ ] are used to round off decimals; The speed sensor detects the forward speed of the harvester. ; The loading and unloading box at the loading position starts loading, and the speed sensor detects the conveying speed of the longitudinal clamping device. ; Elapsed time t After the loading of the loading and unloading box is completed, the control unit (7) controls the rotating device (5) to rotate, thereby switching the loading and unloading box between the loading position and the unloading position; The control unit (7) controls the lifting mechanism (4) to adjust the loading and unloading box at the unloading position to a preset angle, and the material conveying mechanism (207) starts to operate. The speed sensor measures the conveying speed of the material conveying mechanism (207) to be , loading and unloading boxes at the loading position; According to the average height h of the reed plant and the conveying speed of the material conveying mechanism (207) Calculate the time required to complete unloading of the loading and unloading box ; Elapsed time After that, the loading and unloading box has finished unloading, the material conveying mechanism (207) stops running, and the control unit (7) adjusts the loading and unloading box that has finished unloading to a horizontal angle; After some time t - Finally, the loading and unloading box is loaded.

2. The reed harvester loading and unloading system according to claim 1, characterized in that: The loading and unloading box is open on at least one side, and a material conveying mechanism (207) is provided at the bottom of the loading and unloading box, and the material conveying mechanism (207) is used for unloading.

3. The reed harvester loading and unloading system according to claim 2, characterized in that: The loading and unloading box is also provided with a box load-bearing bracket (205) and a steel rope (206); the box load-bearing bracket (205) is connected to the rotating device (5) via the steel rope (206).

4. The reed harvester loading and unloading system according to claim 3, characterized in that: The steel ropes (206) include three ropes, one end of one of the steel ropes (206) is connected to the material box load-bearing bracket (205), and the other end is connected to the rotating device (5); One end of the other two steel ropes (206) is respectively connected to the rear panel (203) of the material box, and the other end is connected to the rotating device (5). The three steel ropes (206) are arranged in an isosceles triangle when viewed from top to bottom.

5. The reed harvester loading and unloading system according to claim 1, characterized in that: The material conveying mechanism (207) comprises a roller, a belt and an electric motor; the belt is mounted on the roller, the roller is connected to the electric motor, the electric motor drives the roller to drive the belt to move, and the electric motor is connected to the control unit (7).

6. The reed harvester loading and unloading system according to claim 1, characterized in that: The lifting mechanism (4) comprises a lifting mechanism base (401), lifting mechanism base wheels (402), a lifting mechanism load-bearing pillar (403), a piston (404), a lifting mechanism bottom surface (405), a rotating component (406), a protective support (407), a lifting mechanism support (408), a rotating shaft (409) and a hydraulic cylinder group (410); The lifting mechanism base (401) is connected to the rotating base (504); the lifting mechanism base wheel (402) is arranged below the lifting mechanism base (401); the lifting mechanism bottom surface (405) is arranged on the lifting mechanism base (401); the lifting mechanism bottom surface (405) is provided with a rotating component (406), a protective support (407), a lifting mechanism support (408), and a rotating shaft (409); the lifting mechanism bottom surface (405) is provided with a lifting mechanism load-bearing pillar (403); the bottom of the rotating component (406) is connected to the lifting mechanism bottom surface (405); the rotating component (406) and the lifting mechanism support (408) are connected via a shaft The protective support (407) is arranged on the rotating component (406); one end of the piston (404) is connected to the lifting mechanism load-bearing pillar (403), and the other end passes through the bottom surface (405) of the lifting mechanism and is connected to the lifting mechanism support (408) through a rotating shaft (409); the hydraulic cylinder group (410) is connected to the piston (404), and the hydraulic cylinder group (410) is connected to the control unit (7); when the loading and unloading box at the loading position is loaded after a time t, the control unit (7) controls the hydraulic cylinder group (410) to push the piston (404) to adjust the lifting mechanism support (408) to a preset height, so that the loading and unloading box at the unloading position is tilted.

7. The reed harvester loading and unloading system according to claim 1, characterized in that: The rotating device (5) further comprises a rotating mechanism load-bearing beam (501), a rotating mechanism shaft (502) and an electric motor (503); the loading and unloading box is connected to the rotating mechanism load-bearing beam (501); the rotating mechanism load-bearing beam (501) is connected to one end of the rotating mechanism shaft (502), the other end of the rotating mechanism shaft (502) is connected to the electric motor (503), the electric motor (503) is connected to the control unit (7), and the electric motor (503) is mounted on the rotating base (504).

8. A harvester, characterized in that: A reed harvester loading and unloading system comprising the reed harvester loading and unloading system according to any one of claims 1 to 7.

9. A control method for a reed harvester loading and unloading system according to any one of claims 1 to 7, characterized in that: The following steps are involved: When the first loading and unloading box (2) at the loading position has finished loading after a period of time t, the control unit (7) controls the rotating device (5) to rotate and exchange the first loading and unloading box (2) and the second loading and unloading box (3), moves the first loading and unloading box (2) to the unloading position, and moves the second loading and unloading box (3) to the loading position, the second loading and unloading box (3) continues to receive the reeds harvested by the harvesting platform (1), and the control unit (7) controls the lifting mechanism (4) to tilt the first loading and unloading box (2) at the unloading position, and controls the first loading and unloading box (2) to unload; specifically, the following steps are included: S1: The harvester starts to move forward, and the speed sensor detects the forward speed of the harvester. ; S2: The loading and unloading box at the loading position starts loading, and the speed sensor detects the conveying speed of the longitudinal clamping device. ; S3: According to machine parameters and harvester forward speed and longitudinal clamping device conveying speed Calculate the time required to fill the loading and unloading box t ; S4: Elapsed time t After the loading of the loading and unloading box is completed, the control unit (7) controls the rotating device (5) to rotate, thereby switching the loading and unloading box between the loading position and the unloading position; S5: The control unit (7) controls the lifting mechanism (4) to adjust the loading and unloading box at the unloading position to a preset angle, and the material conveying mechanism (207) starts to operate. The speed sensor measures the conveying speed of the material conveying mechanism (207) to be , loading and unloading boxes at the loading position; S6: According to the average height h of the reed plant and the conveying speed of the material conveying mechanism (207) Calculate the time required to complete unloading of the loading and unloading box ; S7: Elapsed time After that, the loading and unloading box has finished unloading, the material conveying mechanism (207) stops running, and the control unit (7) adjusts the loading and unloading box that has finished unloading to a horizontal angle; S8: After some time t - Finally, the loading and unloading box is loaded, and steps S4, S5, S7 and S8 are repeated in a cycle.

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