Stem and leaf separating device of beet harvester and control method of stem and leaf separating device

Abstract

The invention discloses a stem and leaf separating device of a beet harvester and a control method of the stem and leaf separating device. The stem and leaf separating device comprises a rack body, and a control table, a walking assembly, an excavating assembly, a separating mechanism, an adjusting mechanism and a camera which are arranged on the rack body, according to the beet harvester, by arranging the separating mechanism, when beets are harvested, parts of all parts are started through a control console, a first servo motor is started, a cutting blade cuts blades, a rack body advances, the blades fall into a fixing cylinder and are sent out through a spiral blade, and then an exhaust pipe is started to exhaust air in the rack body; according to the separation mechanism, the cut leaves are discharged after entering the fixing cylinder through the exhaust pipe and the connecting pipe, part of the cut leaves can be retained through the hooks so as to be sucked away for treatment, and therefore the situation that the cut leaves fall beside beet stems is avoided, the situation that after digging, the cut leaves are adhered and cannot be shaken off, and subsequent screening is not facilitated is avoided; and beet screening is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural equipment, and is a stem-leaf separation device for a beet harvester and a control method thereof. Background Art

[0002] A beet harvester refers to an agricultural machine specially used for collecting the stems, leaves and tubers of beets. It is composed of power, transmission, walking, digging, cutting, conveying and separation, and collection boxes. According to the operation mode, it is divided into digging type and pulling type. When the former is operating, the working parts successively complete the removal of stems and leaves, digging tubers, and cleaning and conveying them to the collection box or loading them into a trailer. With the continuous development and progress of beet harvesting, various harvesting equipment have emerged, such as a beet harvester stem and leaf separation device.

[0003] At present, the beet harvesters on the market are mainly improved for separating external debris from beets. The existing beet harvesters are generally composed of a power component, a transmission component, a cutting component, a digging component and a control console. The control console is used to control the transmission component to transmit power to the cutting component and the digging component, and the beet leaves are separated by cutting. The digging component is used to dig out and collect the beets. However, after cutting the leaves, the broken leaves fall near the beets, and after digging, they stick to the outside of the beets, making them difficult to screen, which is not conducive to the subsequent sugar production process. When separating the beet heads, since the spacing between beets planted by different farmers is not standard, it is not easy to adjust the beet head separation component. Therefore, it is proposed to disperse the broken leaves in a concentrated manner to avoid shaking them off near the beets, which is conducive to screening the beets, and can adjust the position of the separation component to cope with different planting spacings. A beet harvester stem and leaf separation device is convenient and quick to adjust. Summary of the invention

[0004] The main purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art and to provide a sugar beet harvester stem and leaf separation device and a control method thereof. The present invention can disperse broken leaves in a concentrated manner to avoid shaking them off near sugar beets, which is beneficial to screening sugar beets, and can adjust the position of the separation component to cope with different planting spacings, with the advantages of convenient and quick adjustment. It solves the problem that after cutting the leaves, the broken leaves fall near the sugar beets, and after digging, they stick to the outside of the sugar beets, making them difficult to screen and detrimental to the subsequent sugar production process. In addition, when separating the sugar heads, it is not easy to adjust the sugar head separation component because the spacing between sugar beets planted by different farmers is not standard.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] In a first aspect, the present invention provides a stem-leaf separation device for a beet harvester, comprising: a frame body, and a control console, a walking assembly, a digging assembly, a separation mechanism, an adjustment mechanism, and a camera arranged on the frame body;

[0007] The separation mechanism comprises a servo motor 1, a cutting blade, a fixed cylinder, a servo motor 2, a spiral blade, an exhaust fan, an exhaust pipe and a hook, wherein the servo motor 1 is arranged inside the frame body, the cutting blade is installed outside the servo motor 1, the fixed cylinder is installed inside the servo motor 1, the servo motor 2 is arranged inside the fixed cylinder, the spiral blade is fixedly installed outside the servo motor 2, the exhaust fan is arranged inside the frame body, the exhaust pipe is fixedly installed on one side of the exhaust fan, and a plurality of hooks are arranged at the bottom of the frame body;

[0008] The adjustment mechanism includes an electric slide, a sliding block, a large spring spring, a pressure block, an arc pressure plate, an electric telescopic rod, a scraper and an infrared distance sensor. The electric slide is arranged inside the frame body, and a plurality of sliding blocks are arranged on one side of the electric slide. A large spring spring is arranged inside the plurality of sliding blocks, and the outsides of the plurality of large spring springs are fixedly connected to the pressure block, and the bottoms of the plurality of pressure blocks are fixedly installed with an arc pressure plate, and the bottoms of the plurality of pressure blocks are fixedly installed with an electric telescopic rod, and the bottoms of the plurality of electric telescopic rods are fixedly installed with a scraper, and the outsides of the plurality of pressure blocks are fixedly installed with an infrared distance sensor;

[0009] The camera is arranged outside the frame body and above the scraper.

[0010] As a preferred technical solution, a connecting pipe is installed on the top of the exhaust fan, and the fixed cylinder is connected to the exhaust fan through the connecting pipe.

[0011] As a preferred technical solution, the exterior of the fixed cylinder is provided with an opening 1 and an opening 2, wherein the opening 1 is adapted to the cutting blade, and the opening 2 is adapted to the connecting tube.

[0012] As a preferred technical solution, a plurality of connecting rods are arranged at the bottom of the frame body, a small spring is arranged on the outside of each connecting rod, and each hook is movably connected to the corresponding connecting rod through the corresponding small spring.

[0013] As a preferred technical solution, an air suction hood is provided at the bottom of the frame body, and the air suction hood is connected to the exhaust pipe.

[0014] As a preferred technical solution, a discharge pipe is provided outside the frame body, and the discharge pipe is communicated with the fixed cylinder.

[0015] As a preferred technical solution, a sliding block is fixedly mounted on the top of the sliding block, and a sliding groove matched with the sliding block is opened on the outside of the frame body.

[0016] As a preferred technical solution, a camera is arranged outside the frame body, and the camera is located above a plurality of scrapers.

[0017] As a preferred technical solution, the detection direction of the infrared ranging sensor is vertically downward, and the detection signal is fed back to the control console for adjusting the stroke of the electric telescopic rod.

[0018] In a second aspect, the present invention provides a control method for a stem-leaf separation device of a beet harvester, comprising the following steps:

[0019] S1. Identify the position of the beet rows through the camera and control the electric slide to drive the sliding block to position horizontally;

[0020] S2. Calculate the height of the beetroot stem and adjust the extension amount of the electric telescopic rod based on the ground distance data fed back by the infrared ranging sensor;

[0021] S3. Start the servo motor to drive the cutting blade to cut the stems and leaves, and the broken leaves enter the fixed cylinder through the opening;

[0022] S4. Synchronously start the exhaust fan and servo motor 2, suck the remaining broken leaves through the exhaust pipe, and the spiral blades transport the broken leaves to the discharge pipe;

[0023] S5. When the accumulation of broken leaves is detected, the small spring is controlled to vibrate so that the hook can shake off the stuck broken leaves, and the exhaust fan is used for secondary suction.

[0024] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0025] 1. The sugar beet harvester stem and leaf separation device of the present invention is provided with a separation mechanism. When harvesting sugar beets, various parts are opened through a control console, so that once the servo motor is started, the cutting blade cuts the leaves, the frame body moves forward, the leaves fall into the fixed cylinder, and are sent out through the spiral blades. Then, after the exhaust pipe is opened, the frame body is evacuated, so that the chopped leaves enter the fixed cylinder through the exhaust pipe and the connecting pipe and are discharged. By providing a hook, some broken leaves can be retained for suction and processing, thereby preventing the broken leaves from falling beside the sugar beet stems and preventing the broken leaves from sticking and being unable to be shaken off after digging, which is not conducive to subsequent screening. The separation mechanism can disperse the broken leaves in a concentrated manner to prevent them from being shaken off near the sugar beets, which is conducive to screening the sugar beets.

[0026] 2. The sugar beet harvester stem and leaf separation device of the present invention is provided with an adjustment mechanism. Before harvesting is required, the control console is used to start the frame body to the vegetable field, and the planting position of the sugar beets is checked by turning on the camera. Then, the position of the sliding block is adjusted by the electric slide so that the arc-shaped pressure plate can be aligned with the position of the sugar beet row. By providing an infrared ranging sensor, the electric telescopic rod can be adjusted to extend and retract after measuring the height with the ground, so that the height of the scraper can be adjusted, thereby adjusting the height of the cut sugar beet head. The adjustment mechanism can adjust the position of the separation component to cope with different planting spacings, and the adjustment is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a structural stereogram of the stem-leaf separation device of the sugar beet harvester of the present invention;

[0029] Figure 2 It is a front cross-sectional view of the stem-leaf separation device of the sugar beet harvester of the present invention;

[0030] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0031] Figure 4 For the present invention Figure 2 Enlarged view of point B in the middle;

[0032] Figure 5 This is an external structural diagram of the fixed cylinder of the present invention;

[0033] Figure 6 This is the external structure diagram of the hook of the present invention;

[0034] Figure 7 It is a schematic diagram of the adjustment mechanism of the present invention.

[0035] Description of Figure Numbers:

[0036] 1. Frame body; 2. Control console; 3. Travel assembly; 4. Excavation assembly; 5. Separation mechanism; 501. Servo motor one; 502. Cutting blade; 503. Fixed cylinder; 504. Servo motor two; 505. Spiral blade; 506. Exhaust fan; 507. Exhaust pipe; 508. Hook; 6. Adjustment mechanism; 601. Electric slide; 602. Sliding block; 603. Large spring spring; 604. Pressing block; 605. Arc pressure plate; 606. Electric telescopic rod; 607. Scraper; 608. Infrared ranging sensor; 7. Connecting pipe; 8. Opening one; 9. Opening two; 10. Connecting rod; 11. Small spring spring; 12. Suction hood; 13. Discharge pipe; 14. Sliding block; 15. Camera. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0038] See also Figure 1-7 The present embodiment provides a stem and leaf separation device for a beet harvester, comprising a frame body 1, and a control console 2, a walking component 3, a digging component 4, a separation mechanism 5, an adjustment mechanism 6 and a camera 15 arranged on the frame body 1; more specifically, the control console 2 is arranged on the top of the frame body 1, and is used to send corresponding action instructions to the walking component 3, the digging component 4, the separation mechanism 5, the adjustment mechanism 6 and the camera 15; the walking component 3 drives the device to move autonomously in the field, adopts a crawler or drive wheel design, and is synchronized with the digging speed to avoid missing beets; the digging component 4 loosens the soil by a vibrating shovel or a rotating tooth knife, separates the beet roots from the soil and lifts them to the entrance of the separation mechanism to avoid mechanical damage; the separation mechanism 5 is used for cutting and cleaning beet stems and leaves; the adjustment mechanism 6 is used for adaptive and precise adjustment; the camera 15 is used for visual monitoring and positioning of beets.

[0039] See also Figure 2-Figure 6 The separation mechanism 5 includes a servo motor 1 501, a cutting blade 502, a fixed cylinder 503, a servo motor 2 504, a spiral blade 505, an exhaust fan 506, an exhaust pipe 507 and a hook 508. The servo motor 1 501 is fixedly installed inside the frame body 1, the cutting blade 502 is fixedly installed outside the servo motor 1 501, the fixed cylinder 503 is fixedly installed inside the frame body 1, the servo motor 2 504 is arranged inside the fixed cylinder 503, the spiral blade 505 is fixedly installed outside the servo motor 2 504, the exhaust fan 506 is arranged inside the frame body 1, the exhaust pipe 507 is fixedly installed on the left side of the exhaust fan 506, and a plurality of hooks 508 are arranged at the bottom of the frame body 1.

[0040] It can be understood that in the beet harvester stem and leaf separation device of this embodiment: firstly, large stems and leaves are mechanically cut, then loose broken leaves are removed by spiral conveying and negative pressure adsorption, and finally, stubborn residues are processed by vibration combined with airflow. The mechanism dynamically adapts to the harvesting rhythm, the blade speed and spiral pushing speed are synchronized with the machine travel, and the suction power is intelligently adjusted according to the density of broken leaves.

[0041] See also Figure 7The adjusting mechanism 6 includes an electric slide 601, a sliding block 602, a large spring spring 603, a pressure block 604, an arc pressure plate 605, an electric telescopic rod 606, a scraper 607 and an infrared ranging sensor 608. The electric slide 601 is arranged inside the frame body 1, and a plurality of sliding blocks 602 are arranged on the left side of the electric slide 601. The interiors of the plurality of sliding blocks 602 are all provided with large spring springs 603, and the outsides of the plurality of large spring springs 603 are fixedly connected with pressure blocks 604, and the bottoms of the plurality of pressure blocks 604 are all fixedly installed with arc pressure plates 605, and the bottoms of the plurality of pressure blocks 604 are all fixedly installed with electric telescopic rods 606, and the bottoms of the plurality of electric telescopic rods 606 are all fixedly installed with scrapers 607, and the outsides of the plurality of pressure blocks 604 are all fixedly installed with infrared ranging sensors 608.

[0042] It is understandable that in this embodiment, the electric slide moves the scraper group horizontally according to the spacing between the rows of beets identified by the camera, accurately aligns the plants, and avoids missing or accidentally damaging adjacent crops. The pressure block applies flexible downward pressure through a large spring spring, which not only fixes the beets to prevent deviation, but also buffers mechanical shock through elastic deformation to avoid root damage. The electric telescopic rod adjusts the scraper's cutting depth based on the real-time soil height feedback of the infrared ranging sensor to ensure that the stems and leaves are completely removed without damaging the roots.

[0043] See also Figure 3 In one embodiment of the present application, a connecting pipe 7 is installed on the top of the exhaust fan 506, and the fixed tube 503 is connected to the exhaust fan 506 through the connecting pipe 7. By setting the connecting pipe 7, the broken blades can enter the fixed tube 503 through the connecting pipe 7.

[0044] Please refer again Figure 3 In one embodiment of the present application, an opening 8 and an opening 2 9 are provided on the outside of the fixed cylinder 503. The opening 1 8 is matched with the cutting blade 502, and the opening 2 9 is matched with the connecting tube 7. By setting the opening 1 8 and the opening 2 9, the blades can enter the fixed cylinder 503 for collection.

[0045] See also Figure 4 In one embodiment of the present application, a plurality of connecting rods 10 are provided at the bottom of the frame body 1, and small spring springs 11 are provided on the outside of the plurality of connecting rods 10. A plurality of hooks 508 are movably connected to the plurality of connecting rods 10 through the plurality of small spring springs 11, respectively. By providing a plurality of hooks 508, the broken leaves can be prevented from moving backward.

[0046] Please refer again Figure 4In one embodiment of the present application, an air suction hood 12 is fixedly installed at the bottom of the frame body 1, and the air suction hood 12 is connected to the exhaust pipe 507. By setting the air suction hood 12, the broken leaves can be sucked into the interior of the frame body 1 and collected and discharged.

[0047] Please refer again Figure 4 In one embodiment of the present application, a slider 14 is fixedly installed on the top of the sliding block 602, and a sliding groove adapted to the slider 14 is opened on the outside of the frame body 1. By setting the slider 14, the sliding of the sliding block 602 can be made more stable.

[0048] See also Figure 2 A camera 15 is arranged on the outside of the frame body 1, and the camera 15 is located above the plurality of scrapers 607. By setting the camera 15, the positions of the beets next to the plurality of scrapers 607 can be viewed in real time on the console 2, and the plurality of scrapers 607 can be moved above the beets to suit different planting spacings on different lands for easy adjustment.

[0049] It can be understood that the console 2 is provided with a display screen and control buttons of various electronic components inside, and the console 2 is electrically connected to all electronic components in this patent through wires, so that all electronic components in this patent can be controlled by operating the console 2.

[0050] In another example of the present application, a control method for a stem-leaf separation device of a beet harvester is provided, comprising the following steps:

[0051] S1. The camera 15 identifies the position of the beet rows and controls the electric slide 601 to drive the sliding block 602 to be positioned laterally;

[0052] S2. Based on the ground distance data fed back by the infrared ranging sensor 608, the height of the beetroot is calculated and the telescopic amount of the electric telescopic rod 606 is adjusted;

[0053] S3. Start the servo motor 501 to drive the cutting blade 502 to cut the stems and leaves, and the broken leaves enter the fixed cylinder 503 through the opening 8;

[0054] S4. Synchronously start the exhaust fan 506 and the servo motor 504, and suck the remaining broken leaves through the exhaust pipe 507, and the spiral blade 505 delivers the broken leaves to the discharge pipe 13;

[0055] S5. When the accumulation of broken leaves is detected, the small spring spring 11 is controlled to vibrate so that the hook 508 can shake off the stuck broken leaves, and the exhaust fan 506 is used for secondary suction.

[0056] Further, when the beet harvester stem-leaf separation device according to the above embodiment is used to process beets, the operation process is as follows:

[0057] 1) Before harvesting, use the console 2 to start the frame body 1 to the vegetable field, turn on the camera 15 to check the planting position of the beets, and then adjust the position of the sliding block 602 through the electric slide 601 so that the arc-shaped pressing plate 605 can be aligned with the position of the beet rows;

[0058] 2) Then, by setting an infrared distance measuring sensor 608, the electric telescopic rod 606 can be adjusted to extend or retract after measuring the height above the ground, so that the height of the scraper 607 can be adjusted, thereby adjusting the height of the beet cutting position;

[0059] 3) When harvesting beets, the control console 2 is used to open various parts, so that the servo motor 501 is started, the cutting blade 502 cuts the leaves, the frame body 1 moves forward, the leaves fall into the fixed cylinder 503, and are sent out through the spiral blade 505;

[0060] 4) Finally, after the exhaust pipe 507 is opened, the frame body 1 is evacuated, so that the chopped leaves enter the fixed cylinder 503 through the exhaust pipe 507 and the connecting pipe 7 and are discharged. By setting the hook 508, some broken leaves can be retained for suction and processing, thereby preventing the broken leaves from falling beside the beet stems and preventing the broken leaves from sticking and being unable to be shaken off after digging, which is not conducive to subsequent screening.

[0061] In summary, the stem and leaf separation device of the beet harvester is provided with a separation mechanism 5. When harvesting beets, the various parts are turned on through the control console 2, so that the servo motor 501 is started, the cutting blade 502 cuts the leaves, the frame body 1 moves forward, and the leaves fall into the fixed cylinder 503, and are sent out through the spiral blade 505. Then, the exhaust pipe 507 is opened to exhaust the frame body 1, so that the chopped leaves enter the fixed cylinder 503 through the exhaust pipe 507 and the connecting pipe 7 and are discharged. By providing a hook 508, some broken leaves can be retained for suction and processing, thereby preventing the broken leaves from falling beside the beet stems, and preventing the broken leaves from sticking and being unable to be shaken off after excavation, which is not conducive to subsequent screening. The separation mechanism 5 can disperse the broken leaves in a concentrated manner to avoid shaking them off near the beets, which is conducive to screening the beets.

[0062] Furthermore, by setting the adjustment mechanism 6, before harvesting, the control console 2 is used to start the frame body 1 to the vegetable field, the beet planting position is checked by turning on the camera 15, and then the position of the sliding block 602 is adjusted by the electric slide 601, so that the arc pressure plate 605 can be aligned with the position of the beet row, and the infrared ranging sensor 608 can be set to adjust the electric telescopic rod 606 after measuring the height above the ground, so that the height of the scraper 607 is adjusted, thereby adjusting the height of the cut beet head. The adjustment mechanism 6 can adjust the position of the separation component to cope with different planting spacings, and is convenient and quick to adjust.

[0063] In this application, unless otherwise clearly specified or 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 indirectly connected through an intermediate medium, it can be internal communication between two elements, or it can be only surface contact. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0065] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A stem-leaf separation device for a beet harvester, characterized in that: include: A frame body (1), a control console (2), a walking assembly (3), an excavating assembly (4), a separation mechanism (5), an adjustment mechanism (6), and a camera (15) arranged on the frame body (1); The separation mechanism (5) comprises a servo motor 1 (501), a cutting blade (502), a fixed cylinder (503), a servo motor 2 (504), a spiral blade (505), an exhaust fan (506), an exhaust pipe (507) and a hook (508); the servo motor 1 (501) is arranged inside the frame body (1); the cutting blade (502) is installed outside the servo motor 1 (501); the fixed cylinder (503) is installed inside the servo motor 1 (501); the servo motor 2 (504) is arranged inside the fixed cylinder (503); the spiral blade (505) is fixedly installed outside the servo motor 2 (504); the exhaust fan (506) is arranged inside the frame body (1); the exhaust pipe (507) is fixedly installed on one side of the exhaust fan (506); and a plurality of hooks (508) are arranged at the bottom of the frame body (1); The adjusting mechanism (6) comprises an electric slide (601), a sliding block (602), a large spring spring (603), a pressure block (604), an arc-shaped pressure plate (605), an electric telescopic rod (606), a scraper (607) and an infrared distance measuring sensor (608); the electric slide (601) is arranged inside the frame body (1); a plurality of sliding blocks (602) are arranged on one side of the electric slide (601); and a large spring spring (603) is arranged inside each of the plurality of sliding blocks (602). A strip spring (603), the outside of several large spring springs (603) is fixedly connected to a pressure block (604), the bottom of several pressure blocks (604) is fixedly installed with an arc pressure plate (605), the bottom of several pressure blocks (604) is fixedly installed with an electric telescopic rod (606), the bottom of several electric telescopic rods (606) is fixedly installed with a scraper (607), and the outside of several pressure blocks (604) is fixedly installed with an infrared distance sensor (608); The camera (15) is arranged outside the frame body (1) and located above the scraper (607).

2. A sugar beet harvester stem and leaf separation device according to claim 1, characterized in that: A connecting pipe (7) is installed on the top of the exhaust fan (506), and the fixed cylinder (503) is connected to the exhaust fan (506) through the connecting pipe (7).

3. The stem-leaf separation device for a beet harvester according to claim 1, characterized in that: The fixed tube (503) is provided with an opening 1 (8) and an opening 2 (9) on the outside. The opening 1 (8) is adapted to the cutting blade (502), and the opening 2 (9) is adapted to the connecting tube (7).

4. The stem-leaf separation device for a beet harvester according to claim 1, characterized in that: A plurality of connecting rods (10) are arranged at the bottom of the frame body (1), a small spring-loaded spring (11) is arranged outside each connecting rod (10), and each hook (508) is movably connected to a corresponding connecting rod (10) via a corresponding small spring-loaded spring (11).

5. The stem-leaf separation device for a beet harvester according to claim 1, characterized in that: An air suction hood (12) is provided at the bottom of the frame body (1), and the air suction hood (12) is connected to the exhaust pipe (507).

6. The stem-leaf separation device for a beet harvester according to claim 1, characterized in that: A discharge pipe (13) is provided outside the frame body (1), and the discharge pipe (13) is connected to the fixed cylinder (503).

7. The stem-leaf separation device for a beet harvester according to claim 1, characterized in that: A sliding block (14) is fixedly mounted on the top of each sliding block (602), and a sliding groove matching the sliding block (14) is provided on the outside of the frame body (1).

8. The stem-leaf separation device for a beet harvester according to claim 1, characterized in that: A camera (15) is arranged outside the frame body (1), and the camera (15) is located above a plurality of scrapers (607).

9. The stem-leaf separation device for a beet harvester according to claim 1, characterized in that: The detection direction of the infrared distance measuring sensor (608) is vertically downward, and the detection signal is fed back to the control console (2) for adjusting the travel of the electric telescopic rod (606).

10. A control method for a stem-leaf separation device of a sugar beet harvester according to any one of claims 1 to 9, characterized in that: The steps include: S1. The camera (15) identifies the position of the beet rows and columns, and controls the electric slide (601) to drive the sliding block (602) to position horizontally; S2. Based on the ground distance data fed back by the infrared ranging sensor (608), the height of the beetroot is calculated and the telescopic amount of the electric telescopic rod (606) is adjusted; S3. Start the servo motor (501) to drive the cutting blade (502) to cut the stems and leaves, and the broken leaves enter the fixed cylinder (503) through the opening (8); S4. Synchronously start the exhaust fan (506) and the servo motor 2 (504), suck the remaining broken leaves through the exhaust pipe (507), and the spiral blade (505) transports the broken leaves to the discharge pipe (13); S5. When the accumulation of broken leaves is detected, the small spring spring (11) is controlled to vibrate so that the hook (508) shakes off the sticky broken leaves, and the exhaust fan (506) is used for secondary suction.

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