Anti-blocking conveying system of cuddling apocynum venetum cutting and bundling harvester and control method thereof

Abstract

The present application provides a kind of embrace type apocynum venetum cutting and bundling harvester anti-blocking conveying system and its control method, the conveying system includes pre-cut detection system, vertical conveying device, height adjustable accumulated crop presser device, walking device anti-blocking conveying system and control system.The vertical conveying device is to gather and convey the apocynum venetum after cutting to knot device, and the conveying pressure of conveying device at header can be adjusted by variable diameter rotating drum of conveyor belt;Height adjustable accumulated crop presser device is used to apply pressure to apocynum venetum stalks accumulated in front of cab, to prevent blocking after header, and its height can be manually adjusted to adapt to different types of apocynum venetum harvesting;Walking device anti-blocking conveying system is installed at the bottom of frame to prevent blocking of stalks at the bottom of cutting and bundling machine.The present application can effectively improve the plant pass rate of embrace type apocynum venetum cutting and bundling harvester and prevent blocking.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural equipment, relates to a conveying system on a baling harvester, and in particular to an anti-blocking conveying system for a hugging type Apocynum venetum baling harvester. Background Art

[0002] A baling harvester is a high-efficiency small agricultural equipment that can complete the baling work while harvesting crops and neatly stack them by the roadside. However, the current baling harvesters are only applicable to single crops such as reeds and ramie. Due to the special structure of Apocynum venetum, the existing baling harvesters cannot well complete the harvesting and baling operations of Apocynum venetum. Compared with crops such as reeds, the stems of Apocynum venetum grow in clusters,呈树状且每根主茎分出许多小分枝,不同簇丛间罗布麻茎秆之间互相牵扯粘连。因此,罗布麻割捆机在输送过程中,易堵塞。

[0003] Chinese Patent CN201611255540.X discloses "Sugarcane Harvester and Its Anti-Blocking Method", which determines the growth density grade of the harvested sugarcane by detecting the weight parameter and pressure parameter of the sugarcane at the front end of the harvester, and then adjusts the forward speed and feeding speed of the harvester according to this to prevent blockage caused by excessive feeding amount. However, this patent only prevents blockage by adjusting the forward speed, and does not design an anti-blocking device from the mechanical structure, which will affect the harvesting efficiency in actual work. It cannot complete the anti-blocking function while ensuring the harvesting efficiency of the cutting table. Summary of the Invention

[0004] To solve the technical disadvantages of the anti-blocking device in the above harvesting equipment, the present invention provides an anti-blocking conveying system for a hugging type Apocynum venetum baling harvester and its control method. The purpose is to improve the passing rate of Apocynum venetum stems during the baling process and after baling when the hugging type Apocynum venetum baling harvester completes the cutting operation, reduce the blockage rate at the cutting device and the baling device, and improve the harvesting efficiency.

[0005] The present invention realizes the above technical purpose through the following technical means.

[0006] An anti-blocking conveying system for a hugging type Apocynum venetum baling harvester, characterized in that it includes a pre-cutting detection system, a vertical conveying device, a crop pressing device, a bottom conveying device and a control system;

[0007] It should be noted that there is an unclear description in the original text "呈树状且每根主茎分出许多小分枝,不同簇丛间罗布麻茎秆之间互相牵扯粘连。因此,罗布麻割捆机在输送过程中,易堵塞。" which is translated as "呈树状且每根主茎分出许多小分枝,不同簇丛间罗布麻茎秆之间互相牵扯粘连。因此,罗布麻割捆机在输送过程中,易堵塞。" You may need to check and correct this part in the original text for a more accurate translation.The vertical conveying device includes two symmetrical vertical conveying components. Each vertical conveying component includes a first motor bracket, a first motor, a synchronous pulley, a synchronous belt, a variable diameter drum, a first conveyor belt, a conveyor belt enclosure, a tensioning pulley, and a steering drum. The two first motor brackets are located in the same horizontal plane, and their upper and lower ends are respectively connected by a conveyor belt enclosure with corners. A first motor and a variable diameter drum are respectively installed on the two first motor brackets. The first motor and the variable diameter drum located at the same end are driven by a synchronous pulley and a synchronous belt. The tensioning pulley and the steering drum are located at the corners of the conveyor belt enclosure. The first conveyor belt is driven between the variable diameter drums at both ends, and the first conveyor belt is steered by the tensioning pulley and the steering drum.

[0008] The crop pressing plate device includes a base, a second motor bracket, a second motor, a support platform, a first pin, a coupling, a pressing plate, a side support frame, and a second pin. The base has several pairs of evenly distributed circular holes and is fixed to the frame. The support platform is mounted on the base via the first pin. The lower end of the second motor bracket is connected to the support platform, and the second motor is fixed to the upper end of the second motor bracket. One end of the pressing plate is connected to the output end of the second motor via a coupling, and the axis of the pressing plate is located in a horizontal direction perpendicular to the forward direction of the harvester. The other end of the pressing plate is connected to the side support frame fixed to the frame via the second pin.

[0009] The bottom conveying device includes two bottom conveying components arranged symmetrically on the left and right. Each bottom conveying component includes a second motor bracket fixed on the frame, a third motor, a conveyor belt shaft, a first gear, a second gear, and a second conveyor belt. The third motor, the drive shaft, and the driven shaft are all fixed to the lower end of the second motor bracket. The third motor and the drive shaft are connected by meshing first and second gears. The second conveyor belt is assembled between the drive shaft and the driven shaft and extends along the forward direction of the harvester.

[0010] The pre-harvest detection system includes a speed sensor and a cluster width sensor, which are connected to the control system. These sensors are used to detect the speed at which the Apocynum venetum approaches the harvester and the cluster width of the Apocynum venetum in front of the harvester, respectively.

[0011] The control system is also electrically connected to the first motor, the rotary drum motor, the second motor, and the third motor; the control system controls the operation of the first motor, the rotary drum motor, the second motor, and the third motor based on the speed and cluster width data collected by the pre-cutting detection system.

[0012] Furthermore, the angle of the corner of the conveyor belt enclosure is between 90° and 120°.

[0013] Furthermore, the variable diameter rotary drum includes a rotary drum motor, a threaded shaft, a slide table, a bearing, a circular connecting plate, connecting rods, and a strip-shaped arc plate; the inner ring of the bearing is fixedly connected to the outer surface of the slide table, and the outer ring is fixedly connected to the circular connecting plate; the inner side of the slide table is provided with an internal thread and is threadedly connected to the threaded shaft; the threads at both ends of the threaded shaft are reversed and are fixedly connected to the output shaft of the rotary drum motor; the two ends of the multiple connecting rods are respectively connected to the circular connecting plate and the strip-shaped arc plate through hinges.

[0014] Furthermore, the side support frame has a sliding groove in the middle so that the other end of the pressure plate can slide in the sliding groove; the side support frame has a pair of round holes on both sides for fixing the pressure plate; the second pin has a round hole inside so that the other end of the pressure plate is fixed on the side support frame.

[0015] Furthermore, the vertical conveying device is installed above the cutting device and located between the lower horizontal gathering device and the middle horizontal gathering device; there are four first motor brackets, all of which are fixed above the cutting device; the rotation speed of the multiple first motors is consistent, and the conveying speed is the same as the forward speed of the harvester.

[0016] Furthermore, the variable diameter drum is installed at both ends of the first conveyor belt; the threaded shaft of the variable diameter drum passes through the upper and lower conveyor belt enclosures and is coaxially engaged with the hole on the first motor bracket; the drum motor is fixed at the lower end of the first motor bracket, and there are several strip-shaped arc plates and connecting rods arranged in a circular array along the threaded shaft.

[0017] Furthermore, the crop pressing device is located in front of the cab and above and behind the embracing and gathering device; the pairs of circular holes on the base are arranged in a linear array at certain intervals in the vertical direction; the pairs of circular holes on both sides of the side support frame correspond in height to the circular holes on the base.

[0018] Furthermore, the bottom conveyor is installed on the left and right sides of the chassis of the Apocynum venetum husk harvester; the angle between the axis of the conveyor belt shaft and the horizontal plane is 30-60°; the conveying speed of the second conveyor belt is the same as the forward speed of the chassis; the transmission direction of the second conveyor belt is the same as the movement direction of the Apocynum venetum, and its length needs to be determined according to the actual harvesting requirements.

[0019] The control method for the anti-blocking conveying system of the embracing type Apocynum venetum cutter and harvester is characterized in that,

[0020] First, a large amount of data needs to be collected and analyzed. The height and width of a large number of Apocynum venetum clumps should be measured and the density and number of plants in the clumps should be recorded. A morphological model database of Apocynum venetum clumps with height and width as indicators should be established.

[0021] The pre-harvest detection system monitors the harvester's speed and the width of the Apocynum venetum clumps in front of the harvester in real time;

[0022] (3) The control system predicts the density of the Apocynum venetum clumps based on the width information detected in real time by the clump width sensor and the morphological model database, and predicts the size of the bale by using the harvesting speed v1 of the harvester, and adjusts the diameter of the variable diameter drum to adjust the clamping force on the Apocynum venetum clumps after cutting; at the same time, the control system also controls the conveying speed v2 of the first conveyor belt by adjusting the speed of the first motor according to the harvesting speed v1 of the harvester, so that v2 is slightly greater than v1, thereby preventing the Apocynum venetum from clogging at the cutting device; the control system drives the speed of the second motor to drive the pressure plate to rotate, preventing the Apocynum venetum from clogging above the embracing and gathering device; the control system drives the third motor to drive the second conveyor belt to rotate, so that the Apocynum venetum accumulated at the bottom of the Apocynum venetum bale harvester can pass through quickly, preventing clogging.

[0023] Furthermore, the diameter adjustment of the variable diameter drum is as follows: the diameters of the variable diameter drums at both ends of the same first conveyor belt are adjusted synchronously and in opposite directions to maintain the tension of the first conveyor belt unchanged.

[0024] The high-throughput, anti-clogging conveying system for the clump-type Apocynum venetum baler harvester of this invention comprises an upright conveyor mounted above the cutting device, a crop pressing plate device mounted behind the clump-type gathering device, and bottom conveyors mounted on both sides of the Apocynum venetum baler harvester chassis. When the harvester is operating, the clump-type gathering device gathers the Apocynum venetum clumps to be harvested, which are then cut by the cutting device and transported to the knotter by the upright conveyor. The baled Apocynum venetum clumps are pressed to the bottom of the harvester by the crop pressing plate device, and then conveyed to the rear of the harvester by the bottom conveyor as they pass through the chassis cavity. The entire conveying process is dynamically adjusted by the control system, significantly reducing the probability of clogging.

[0025] The beneficial effects of this invention are as follows:

[0026] This invention designs a complete high-throughput anti-clogging transmission system, which improves the throughput of Apocynum venetum during the cutting and bundling harvesting process by adding conveyor belts at the cutting platform and chassis and adding a pressure plate behind the knotting device.

[0027] This invention improves upon the traditional method of preventing blockages in combine harvesters by reducing their forward speed. While reducing the forward speed decreases the feed rate and thus reduces the probability of blockage, this method reduces harvesting efficiency. This can also affect the quality of harvested crops during critical harvesting periods. The anti-blocking system of this invention achieves blockage prevention without compromising harvesting efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a hugging-type Apocynum venetum cutter and harvester.

[0029] Figure 2 This is a schematic diagram of the vertical conveyor system.

[0030] Figure 3 This is a schematic diagram of the structure of the steering drum and the tensioning wheel.

[0031] Figure 4 This is a schematic diagram of the crop pressing plate device.

[0032] Figure 5 This is the main view of the crop pressing plate device structure.

[0033] Figure 6 This is the front view of the bottom conveyor.

[0034] Figure 7 This is a schematic diagram of the bottom conveyor structure.

[0035] Figure 8 This is a schematic diagram of a variable diameter rotating drum structure.

[0036] In the picture,

[0037] 1. Pre-harvest inspection system; 2. Cutting device; 3. Anti-clogging conveyor system; 4. Hugging and gathering device; 5. Chassis; 7. Control system; 301. Vertical conveyor device; 301-1. First motor bracket; 301-2. First motor; 301-3. Synchronous pulley; 301-4. Synchronous belt; 301-5. Variable diameter rotary drum; 301-6. First conveyor belt; 301-7. Conveyor belt enclosure; 301-8. Tensioner pulley bracket; 301-9. Tensioner pulley; 301-10. Steering rotary drum; 302. Crop pressing device; 302-1. Base; 302-2. Second motor bracket; 302-3. Second motor; 302-4. Support platform, 302-5. First pin, 302-6. Coupling, 302-7. Pressure plate, 302-8. Side support frame, 302-9. Second pin, 303. Bottom conveyor device, 303-1. Third motor bracket, 303-2. Third motor, 303-3. Conveyor belt shaft, 303-4. First gear, 303-5. Second gear, 303-6. Second conveyor belt, 301-5-1. Rotary drum motor, 301-5-2. Threaded shaft, 301-5-3. Slide table, 301-5-4. Bearing, 301-5-5. Circular connecting plate, 301-5-6. Connecting rod, 301-5-7. Strip-shaped arc plate. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0039] like Figure 1As shown, the high-throughput, anti-clogging conveying system for the tufted hemp harvester of the present invention includes a pre-cutting detection system 1, an upright conveyor 301, a crop pressing device 302, a bottom conveyor 303, and a control system 7. The pre-cutting detection system 1 is installed on the side of the cutting device 2, the upright conveyor 301 is installed between the tufted gathering devices 4, located above the cutting device 2 and symmetrically positioned left and right, the crop pressing device 302 is located above and behind the tufted gathering devices 4, the bottom conveyor 303 is located below the chassis 5 and symmetrically positioned left and right, and the control system 7 is located in the control room.

[0040] The pre-harvest detection system 1 is mounted on the chassis 5 and connected to the control system 7. It includes a speed sensor and a clump width sensor, both connected to the control system 7, to detect the speed at which the Apocynum venetum approaches the harvester and the clump width of the Apocynum venetum in front of the harvester, respectively. The control system 7 issues control commands based on the speed and clump width data collected by the pre-harvest detection system 1.

[0041] like Figure 2 As shown, the vertical conveying device 301 includes two symmetrical vertical conveying components. Each vertical conveying component includes a first motor bracket 301-1, a first motor 301-2, a synchronous pulley 301-3, a synchronous belt 301-4, a variable diameter drum 301-5, a first conveyor belt 301-6, a conveyor belt guard 301-7, a tensioning pulley 301-9, and a steering drum 301-10. The two first motor brackets 301-1 are located in the same horizontal plane, and their upper and lower ends are respectively connected by a conveyor belt guard 301-7 with a 90° to 120° corner. The first motor brackets 301-1 and the conveyor belt guard 301-7 constitute the basic framework of the vertical conveying component. Two first motor brackets 301-1 each mount a first motor 301-2 and a variable diameter drum 301-5. The first motor 301-2 and the variable diameter drum 301-5, located at the same end, are connected by a synchronous pulley 301-3 and a synchronous belt 301-4. The synchronous belt 301-4 transmits the power of the first motor 301-2 to the variable diameter drum 301-5. A tension pulley 301-9 and a steering drum 301-10 are positioned at the corner of the conveyor belt enclosure 301-7. The first conveyor belt 301-6 is connected between the variable diameter drums 301-5 at both ends, and the tension pulley 301-9 and the steering drum 301-10 enable the first conveyor belt 301-6 to turn at the corner of the conveyor belt enclosure 301-7. Specifically, as shown... Figure 3 As shown, the tensioning wheel 301-9 is connected to the steering drum 301-10 through the tensioning wheel bracket 301-8 and tensions the first conveyor belt 301-6, so that the variable diameter drum 301-5 can drive the first conveyor belt 301-6 to rotate together when rotating.

[0042] like Figure 8 As shown, the variable diameter rotary drum 301-5 includes a rotary drum motor 301-5-1, a threaded shaft 301-5-2, a slide 301-5-3, a bearing 301-5-4, a circular connecting plate 301-5-5, a connecting rod 301-5-6, and a strip-shaped arc plate 301-5-7. The inner ring of the bearing 301-5-4 is fixedly connected to the outer surface of the slide 301-5-3, and the outer ring is fixedly connected to the circular connecting plate 301-5-5. The slide 301-5-3 has an internal thread on its inner side and is threadedly connected to the threaded shaft 301-5-2. The threaded shaft 301-5-2 has reverse threads at both ends. The upper and lower ends of the threaded shaft 301-5-2 pass through the upper and lower conveyor belt enclosures 301-7 and are coaxially engaged with the holes on the first motor bracket 301-1. The rotary drum motor 301-5-1 is fixed to the lower end of the first motor bracket 301-1, and the lower end of the threaded shaft 301-5-2 is fixedly connected to the output shaft of the rotary drum motor 301-5-1. Several strip-shaped arc plates 301-5-7 and connecting rods 301-5-6 are arranged in a circular array around the threaded shaft 301-5-2; the two ends of the multiple connecting rods 301-5-6 are respectively connected to the circular connecting plate 301-5-5 and the strip-shaped arc plates 301-5-7 via hinges. Several strip-shaped arc plates 301-5-7, connecting rods 301-5-6, and circular connecting plates 301-5-5 together form the outer ring of the rotary drum, which can rotate around the threaded shaft 301-5-2 via bearings 301-5-4. The rotary drum motor 301-5-1 drives the threaded shaft 301-5-2 to rotate, which in turn drives the slide table 301-5-3 to move axially, thereby causing the circular connecting plate 301-5-5 to move axially. The threaded shaft 301-5-2, the strip-shaped arc plate 301-5-7, and the two connecting rods 301-5-6 form an isosceles trapezoid with the connecting rod 301-5-6 as the waist, thus converting the axial movement of the slide table 301-5-3 into the radial movement of the strip-shaped arc plate 301-5-7, thereby changing the diameter of the variable diameter rotary drum 301-5.

[0043] The upright conveyor 301 is installed above the cutting device 2 and located between the lower horizontal gathering device 403 and the middle horizontal gathering device 404. There are four first motor brackets 301-1, all fixed above the cutting device 2. The multiple first motors 301-2 rotate at the same speed, and their conveying speed is the same as the harvester's forward speed. During operation, two first motors 301-2 on the same side rotate in the same direction at the same speed, driving the variable diameter drum 301-5 to rotate via synchronous pulleys 301-3 and synchronous belts 301-4, thereby causing the first conveyor belt 301-6 to rotate. Specifically, the two synchronous pulleys 301-3 are respectively installed on the output end of the motor 301-2 and the variable diameter drum 301-5, and are connected by synchronous belts 301-4. When the cut Apocynum venetum passes through the upright conveyor 301, it is driven backward by the first conveyor belt 301-6, accelerating the transport speed and reducing congestion. To facilitate efficient transport, the spacing between the first conveyor belts 301-6 of the two upright conveyor components, allowing the Apocynum venetum to pass through, should be slightly smaller than the distance between the cover plates of the two cutting platforms, ensuring sufficient pressure as the Apocynum venetum passes through. The variable-diameter rotating drum 301-5 adjusts the angle between the first conveyor belt and the forward direction by changing its diameter, thereby regulating the clamping force on the Apocynum venetum. When the number of harvested Apocynum venetum plants changes, the spacing between the first conveyor belts 301-6 of the two upright conveyor components can be adjusted by changing the diameter of the variable-diameter rotating drum 301-5. Specifically, during adjustment, the diameters of the variable-diameter rotating drums 301-5 at both ends of the same first conveyor belt 301-6 are adjusted synchronously and in opposite directions to maintain a constant tension on the first conveyor belt 301-6.

[0044] like Figure 4 , Figure 5As shown, the crop pressing plate device 302 includes a base 302-1, a second motor bracket 302-2, a second motor 302-3, a support platform 302-4, a first pin 302-5, a coupling 302-6, a pressing plate 302-7, a side support frame 302-8, and a second pin 302-9. The base 302-1 and the side support frame 302-8 are fixed to the machine frame. The base 302-1 has several pairs of evenly distributed circular holes and is fixed to the machine frame. The support platform 302-4 is mounted on the base 302-1 via a first pin 302-5. The lower end of the second motor bracket 302-2 is connected to the support platform 302-4, and the second motor 302-3 is fixed to the upper end of the second motor bracket 302-2. One end of the pressure plate 302-7 is connected to the output end of the second motor 302-3 via a coupling 302-6, and the axis of the pressure plate 302-7 is located in a horizontal direction perpendicular to the forward direction of the harvester. The other end of the pressure plate 302-7 is connected to the side support frame 302-8 fixed to the machine frame via a second pin 302-9. The circular holes on the base 302-1 correspond to the circular holes on the side support frame 302-8, making the axis of the pressure plate 302-7 parallel to the horizontal plane. The second motor 302-3 drives the pressure plate 302-7 to rotate via the coupling 302-6.

[0045] The crop pressing plate 302-7 device 302 is located in front of the cab and above and behind the embracing and gathering device 4; the paired circular holes on the base 302-1 are arranged in a linear array at certain intervals in the vertical direction; the pin adjusts the height of the support platform 302-4 by passing through different circular holes on the base 302-1 so that the pressing plate 302-7 contacts the Apocynum venetum; the paired circular holes on both sides of the side support frame 302-8 correspond in height to the circular holes on the base 302-1; the center of the rotating shaft of the pressing plate 302-7 is located in the horizontal direction, and the rotation direction is consistent with the forward direction of the Apocynum venetum, so as to make the Apocynum venetum pass through quickly by simultaneously applying squeezing and pushing forces.

[0046] like Figure 6 , Figure 7As shown, the bottom conveying device 303 includes two bottom conveying assemblies symmetrically arranged on the left and right. Each bottom conveying assembly includes a third motor bracket 303-1 fixed to the frame, a third motor 303-2, a conveyor belt shaft 303-3, a first gear 303-4, a second gear 303-5, and a second conveyor belt 303-6. The third motor bracket 303-1 is used to fix the third motor 303-2 at a certain angle to the horizontal plane. The third motor 303-2, the drive shaft, and the driven shaft are all fixed to the lower end of the third motor bracket 303-1. The third motor 303-2 and the drive shaft are connected by meshing first gear 303-4 and second gear 303-5. The second conveyor belt 303-6 is assembled between the drive shaft and the driven shaft and extends along the forward direction of the harvester. Specifically, the output shaft of the third motor 303-2 is fixedly connected to the first gear 303-4, and the middle part of the conveyor belt shaft 303-3 is fixed to the second gear 303-5. During operation, the rotation of the third motor 303-2, through the transmission of the first gear 303-4 and the second gear 303-5, drives the second conveyor belt 303-6 outside the conveyor belt shaft 303-3 to rotate in the same direction as the forward direction. The second conveyor belt 303-6 contacts and compresses the baled Apocynum venetum, moving the Apocynum venetum towards the rear of the baler to prevent it from clogging at the bottom.

[0047] The bottom conveyor device 303 is installed on the left and right sides of the chassis 5 of the Apocynum venetum cutter and harvester; the angle between the axis of the conveyor belt shaft 303-3 and the horizontal is 30-60°; the transmission speed of the conveyor belt is the same as the forward speed of the chassis 5; the transmission direction of the conveyor belt is the same as the movement direction of the Apocynum venetum, and the length needs to be determined according to the actual harvesting requirements.

[0048] The control system 7 is electrically connected to the first motor 301-2, the rotary drum motor 301-5-1, the second motor 302-3, and the third motor 303-2. The control system 7 receives and analyzes information from the pre-cutting detection system 1, and controls the operation of the first motor 301-2, the rotary drum motor 301-5-1, the second motor 302-3, and the third motor according to the speed and cluster width data collected by the pre-cutting detection system 1.

[0049] The control method for the anti-blocking conveying system of the embracing type Apocynum venetum cutter and harvester is characterized in that,

[0050] S1 first requires collecting and analyzing a large amount of data, measuring the height and width of a large number of Apocynum venetum clumps and recording the density and number of plants in the clumps, and establishing a morphological model database of Apocynum venetum clumps with height and width as indicators;

[0051] The S2 pre-harvest detection system 1 monitors the harvester's speed and the width of the Apocynum venetum clumps in front of the harvester in real time;

[0052] The control system 7 described in S3 predicts the density of the Apocynum venetum clumps based on the width information detected in real time by the clump width sensor 104, using a morphological model database, and predicts the size of the bale by using the harvesting speed v1 of the harvester. It then adjusts the diameter of the variable diameter drum 301-5 to regulate the clamping force on the Apocynum venetum clumps after cutting. Simultaneously, the control system 7 also controls the conveying speed v2 of the first conveyor belt 301-6 by adjusting the rotation speed of the first motor 301-2 according to the harvesting speed v1 of the harvester, ensuring that v2 is slightly greater than v1, thus preventing blockage of the Apocynum venetum at the cutting device 2. The control system 7 drives the rotation speed of the second motor 302-3, causing the pressure plate 302-7 to rotate, preventing blockage of the Apocynum venetum above the embracing and gathering device 4. Finally, the control system 7 drives the third motor 303-2, causing the second conveyor belt 303-6 to rotate, allowing the Apocynum venetum accumulated at the bottom of the Apocynum venetum bale harvester to pass quickly, preventing blockage.

[0053] The embodiments described above are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Any obvious improvements, substitutions or modifications that can be made by those skilled in the art without departing from the essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A clinging-type anti-blocking conveying system for a hemp baler harvester, characterized in that: It includes a pre-harvest inspection system (1), an upright conveyor (301), a crop pressing device (302), a bottom conveyor (303), and a control system (7); The vertical conveying device (301) includes two vertical conveying components symmetrically arranged on the left and right. Each vertical conveying component includes a first motor bracket (301-1), a first motor (301-2), a synchronous pulley (301-3), a synchronous belt (301-4), a variable diameter drum (301-5), a first conveyor belt (301-6), a conveyor belt guard (301-7), a tensioning pulley (301-9), and a steering drum (301-10). The two first motor brackets (301-1) are located on the same horizontal plane, and their upper and lower ends are respectively connected by a corner-shaped conveyor belt guard (301-7). 1-1) A first motor (301-2) and a variable diameter drum (301-5) are respectively installed on the conveyor belt. The first motor (301-2) and the variable diameter drum (301-5) located at the same end are driven by a synchronous pulley (301-3) and a synchronous belt (301-4). The tension pulley (301-9) and the steering drum (301-10) are set at the corner of the conveyor belt enclosure (301-7). The first conveyor belt (301-6) is driven between the variable diameter drums (301-5) at both ends, and the first conveyor belt (301-6) is turned by the tension pulley (301-9) and the steering drum (301-10). The crop pressing device (302) includes a base (302-1), a second motor bracket (302-2), a second motor (302-3), a support platform (302-4), a first pin (302-5), a coupling (302-6), a pressing plate (302-7), a side support frame (302-8), and a second pin (302-9). The base (302-1) has several pairs of evenly distributed circular holes and is fixed to the frame. The support platform (302-4) is mounted on the base (302-1) via the first pin (302-5). The lower end of the second motor bracket (302-2) is connected to the support platform (302-4), and the second motor (302-3) is fixed to the upper end of the second motor bracket (302-2). One end of the pressure plate (302-7) is connected to the output end of the second motor (302-3) through a coupling (302-6), and the axis of the pressure plate (302-7) is located in the horizontal direction perpendicular to the forward direction of the harvester. The other end of the pressure plate (302-7) is connected to the side support frame (302-8) fixed on the frame through a second pin (302-9). The bottom conveying device (303) includes two bottom conveying components arranged symmetrically on the left and right. The bottom conveying components include a third motor bracket (303-1) fixed on the frame, a third motor (303-2), a conveyor belt shaft (303-3), a first gear (303-4), a second gear (303-5), and a second conveyor belt (303-6). The third motor (303-2), the drive shaft, and the driven shaft are all fixed at the lower end of the third motor bracket (303-1). The third motor (303-2) and the drive shaft are connected by a transmission through the meshing first gear (303-4) and the second gear (303-5). The second conveyor belt (303-6) is assembled between the drive shaft and the driven shaft and extends along the forward direction of the harvester. The pre-harvest detection system (1) includes a speed sensor and a cluster width sensor (104), which are connected to the control system (7) to detect the speed at which the Apocynum venetum approaches the harvester and the cluster width of the Apocynum venetum in front of the harvester, respectively. The control system (7) is also electrically connected to the first motor (301-2), the rotary drum motor (301-5-1), the second motor (302-3), and the third motor (303-2); the control system (7) controls the operation of the first motor (301-2), the rotary drum motor (301-5-1), the second motor (302-3), and the third motor according to the speed and cluster width data collected by the pre-cutting detection system (1).

2. The anti-blocking conveying system for the embracing type Apocynum venetum cutter and harvester according to claim 1, characterized in that, The corner angle of the conveyor belt enclosure (301-7) is between 90° and 120°.

3. The anti-blocking conveying system for the embracing type Apocynum venetum cutter and harvester according to claim 1, characterized in that, The variable diameter rotary drum (301-5) includes a rotary drum motor (301-5-1), a threaded shaft (301-5-2), a slide (301-5-3), a bearing (301-5-4), a circular connecting plate (301-5-5), a connecting rod (301-5-6), and a strip-shaped arc plate (301-5-7); the inner ring of the bearing (301-5-4) is fixedly connected to the outer surface of the slide (301-5-3), and the outer ring is fixedly connected to the circular connecting plate. (301-5-5) is fixedly connected. The inner side of the slide (301-5-3) is provided with internal thread and is threadedly connected to the threaded shaft (301-5-2). The threads at both ends of the threaded shaft (301-5-2) are reversed and are fixedly connected to the output shaft of the rotary drum motor (301-5-1). The two ends of the multiple connecting rods (301-5-6) are respectively connected to the circular connecting plate (301-5-5) and the strip-shaped arc plate (301-5-7) by hinge.

4. The anti-blocking conveying system for the clump-type Apocynum venetum cutter and harvester according to claim 1, characterized in that, The side support frame (302-8) has a sliding groove in the middle so that the other end of the pressure plate (302-7) can slide in the sliding groove; the side support frame (302-8) has a pair of round holes on both sides for fixing the pressure plate (302-7); the second pin has a round hole inside so that the other end of the pressure plate (302-7) is fixed on the side support frame (302-8).

5. The anti-blocking conveying system for the embracing type Apocynum venetum cutter and harvester according to claim 1, characterized in that, The vertical conveying device (301) is installed above the cutting device (2) and located between the lower horizontal gathering device (403) and the middle horizontal gathering device (404); there are four first motor brackets (301-1) and they are all fixed above the cutting device (2); the rotation speed of the multiple first motors (301-2) is the same and the conveying speed is the same as the forward speed of the harvester.

6. The anti-blocking conveying system for the embracing type Apocynum venetum cutter and harvester according to claim 1, characterized in that, The variable diameter drum (301-5) is installed at both ends of the first conveyor belt (301-6); the threaded shaft (301-5-2) of the variable diameter drum (301-5) passes through the upper and lower conveyor belt enclosures (301-7) and is coaxially engaged with the hole on the first motor bracket (301-1); the drum motor (301-5-1) is fixed at the lower end of the first motor bracket (301-1), and there are several strip-shaped arc plates (301-5-7) and connecting rods (301-5-6) arranged in a circumferential array along the threaded shaft (301-5-2).

7. The anti-blocking conveying system for the embracing type Apocynum venetum cutter and harvester according to claim 1, characterized in that, The crop pressing device (302) is located in front of the cab and above and behind the embracing gathering device (4); the pairs of round holes on the base (302-1) are arranged in a linear array at a certain interval in the vertical direction; the pairs of round holes on both sides of the side support frame (302-8) correspond in height to the round holes on the base (302-1).

8. The anti-blocking conveying system for the embracing type Apocynum venetum cutter and harvester according to claim 1, characterized in that, The bottom conveyor (303) is installed on the left and right sides of the chassis (5) of the Apocynum venetum husk harvester; the angle between the axis of the conveyor belt shaft (303-3) and the horizontal plane is 30~60°; the conveying speed of the second conveyor belt (303-6) is the same as the forward speed of the chassis (5); the transmission direction of the second conveyor belt (303-6) is the same as the movement direction of the Apocynum venetum, and its length needs to be determined according to the actual harvesting requirements.

9. The control method for the anti-blocking conveying system of the clump-type Apocynum venetum cutter and harvester according to any one of claims 1-8, characterized in that, (1) First, a large amount of data needs to be collected and analyzed. The height and width of a large number of Apocynum venetum clumps are measured and the density and number of plants of the clumps are recorded. A morphological model database of Apocynum venetum clumps with height and width as indicators is established. (2) Pre-harvest detection system (1) Real-time detection of the harvester speed and the width of the clumps of Apocynum venetum in front of the harvester; (3) The control system (7) predicts the density of the Apocynum venetum clumps based on the morphological model database according to the width information detected in real time by the clump width sensor (104), and predicts the size of the bale by means of the harvesting speed v1 of the harvester, and adjusts the diameter of the variable diameter drum (301-5) to complete the adjustment of the clamping force on the Apocynum venetum clumps after cutting; at the same time, the control system (7) also controls the first conveyor belt (301-5) by adjusting the speed of the first motor (301-2) according to the harvesting speed v1 of the harvester. The transmission speed v2 of 01-6) is slightly greater than v1 to prevent the Apocynum venetum from getting blocked at the cutting device (2); the control system (7) drives the rotation speed of the second motor (302-3) to drive the pressure plate (302-7) to rotate, preventing the Apocynum venetum from getting blocked above the embracing and gathering device (4); the control system (7) drives the third motor (303-2) to drive the second conveyor belt (303-6) to rotate, so that the Apocynum venetum accumulated at the bottom of the Apocynum venetum cutting and baling harvester can pass through quickly to prevent blockage.

10. The control method according to claim 9, characterized in that, The diameter adjustment of the variable diameter drum (301-5) is as follows: the diameter adjustment of the variable diameter drums (301-5) at both ends of the same first conveyor belt (301-6) is synchronous and in opposite directions, so as to keep the tension of the first conveyor belt (301-6) constant.

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