Suction nozzle special for sunflower disc

Abstract

The invention relates to the technical field of agricultural mechanical equipment, in particular to a special suction nozzle for a sunflower disc. According to the technical scheme, the device comprises a suction nozzle, a transverse cutting knife assembly assembled on the edge of a front baffle of a suction nozzle feeding port, and a material stopper installed on the edge of a rear baffle of the suction nozzle feeding port. Cutter teeth of the transverse cutter assembly point to the feeding direction of the suction nozzle; and the left and right baffles of the suction nozzle extend away from the feed port from the end part of the feed port along the feed direction of the suction nozzle, and define a low-pressure material accumulation area with the stoppers at the end part of the feed port of the suction nozzle. The self-propelled agricultural material suction device is connected with a material suction pipe of a conventional self-propelled agricultural material suction device, lodging and stacked materials and crops with different shapes such as vertical stalks with roots planted underground are subjected to breaking treatment through the cutting knife assembly, the materials are picked up in a negative pressure material suction mode, the problems that an existing device is poor in adaptive capacity, efficient operation is difficult to achieve and the like are solved, and the working efficiency is improved. And the working efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery and equipment, in particular to a special suction nozzle for sunflower disks. Background Art

[0002] Sunflower seed discs are rich in nutrients and are high-quality feed ingredients. Harvested sunflower discs are usually thrown into the fields to dry. After they are dried, they are recycled and crushed for livestock feed, or processed into farm fertilizers, solidified fuel, etc. Conventional crop picking devices are roughly divided into two types of products: rake type and wind suction type. Since there are thick root stubbles and upright straws with roots planted in the ground, scattered seed discs, and long straws mixed in the seed discs in the sunflower fields after harvest, facing the above complex situation, conventional picking devices are difficult to take into account the picking operations of crops of different shapes at the same time. For example: the rake picking component of the rake picking device is very easy to get entangled in strip crops such as straw, making it difficult to drag the equipment forward. It is necessary to stop the machine several times to clean the rake picking component, making it difficult to operate continuously, reducing work efficiency, increasing work intensity and duration, and also increasing equipment use and labor cost investment to a certain extent. There is even a phenomenon that the picking income is not enough to cover the picking cost. Conventional wind suction devices are mostly used to pick up scattered crops such as stems and leaves, fine straw, and forage grass. Their suction nozzles only serve as wind hoods, and are unable to cope with the complex situation of mixed and variously shaped stems in cultivated land. In particular, after the upright straw is pushed down by the workbench of the picking equipment, it is pressed on the upper part of scattered sunflower discs and lying straw, hindering the picking of sunflower discs, etc., resulting in unclean suction or clogging of the suction nozzle, which affects the picking efficiency and causes serious waste.

[0003] In addition, since the harvest time of sunflowers is still in the rainy season, the drying and harvesting time of sunflower seed discs is concentrated and short. Once there are weather changes such as rain, the sunflower discs and other materials will become damp and moldy and deteriorate. Therefore, the losses caused by not being able to pick them up in time are countless every year, which wastes resources and pollutes the environment. Summary of the Invention

[0004] The present invention provides a special suction nozzle for sunflower disks, which is connected to the end of a suction pipe of a self-propelled crop picking device. When the crop picking device moves and sucks the sunflower disks, the vertical poles, long straws, etc. that hinder the picking operation are quickly cut and / or cut, eliminating the interference of the vertical poles and long straws, thereby improving work efficiency and reducing operating costs.

[0005] The purpose of the present invention is achieved through the following technical solutions: A special suction nozzle for sunflower trays, installed at the end of the feed pipe of a conventional negative pressure crop picking device. The technical solution includes an external power device, a suction nozzle, a horizontal cutter assembly, and a material stopper. The suction nozzle body is a tubular channel with a rectangular cross section, and the two opposite long side plates of the suction nozzle body are respectively the front and rear baffles; the horizontal cutting knife assembly is assembled at the feed port of the suction nozzle and arranged along the edge of the front baffle of the feed port, and the blade teeth of the horizontal cutting knife assembly point in the feeding direction of the suction nozzle; the material stopper is installed on the rear baffle side of the feed port of the suction nozzle; The baffles on the left and right sides of the suction nozzle extend from the feeding end away from the feeding port to form outward-extending side end plates on both sides of the suction nozzle feeding port; The side end plates and the material stopper surround the three sides of the suction nozzle feed port to form a low-pressure material accumulation area; The transverse cutting knife assembly is connected to an external power device.

[0006] Furthermore, the suction nozzle is provided with at least one set of longitudinal cutters, and the longitudinal cutters are arranged crosswise with the cutting direction of the transverse cutter assembly.

[0007] Furthermore, the longitudinal cutter adopts an agricultural cutter assembly, which is assembled inside the suction nozzle and the blade teeth point to the feeding direction of the suction nozzle.

[0008] Furthermore, the longitudinal cutter adopts a circular saw or a thumbwheel, and the circular saw shaft or thumbwheel shaft is assembled on the outer wall of the front baffle and / or the rear baffle of the suction nozzle, and the circular saw blade or thumbwheel lever is inserted into the strip hole of the suction nozzle wall and separates the internal space of the suction nozzle.

[0009] Furthermore, the longitudinal cutter is composed of a circular saw and a pressure wheel arranged opposite to each other. The circular saw shaft and the pressure wheel shaft are respectively assembled on the outer walls of the two opposite long side plates of the suction nozzle body. The circular saw blade and the pressure wheel are inserted into the interior of the suction nozzle through the strip hole in the suction nozzle wall, and the circular saw teeth are adjacent to the outer circumferential surface of the pressure wheel.

[0010] Furthermore, a vertical pole divider for processing upright straw is provided on the outer side of the front baffle of the suction nozzle, and the vertical pole divider includes a straw dividing plate and a one-way gate rotating rod; the straw dividing plate is perpendicular to the front baffle of the suction nozzle and parallel to the axis of the suction nozzle body and is arranged side by side on the outer side of the front baffle of the suction nozzle, dividing the space outside the front baffle of the suction nozzle into multiple parallel guide channels; at least two one-way gate rotating rods are arranged in each guide channel, and the one-way gate rotating rods in each guide channel are arranged in sequence from the channel inlet end to the rear with the front high and the rear low; the one-way gate rotating rod at the lowest end is arranged on the front side of the horizontal cutting knife assembly.

[0011] Furthermore, the upright pole divider also includes a horizontal auxiliary material roller, which is arranged between the end of the guide channel and the horizontal cutting knife assembly, and is arranged relative to the position of the one-way gate rotating rod at the end.

[0012] Furthermore, a vertical rod cutter for processing upright straws is provided on the outer side of the nozzle front baffle, and the vertical rod cutter adopts a conventional swather, header, rotary knife or rotary saw.

[0013] Furthermore, the material baffle adopts a rotary brush, elastic curtain, thick planting row brush or curtain-shaped chain plate.

[0014] Furthermore, the side end plate and the nozzle are connected by a detachable movable plate body structure.

[0015] The beneficial effects of the present invention are as follows: The special nozzle for sunflower trays of the present invention is connected to the suction pipe of a conventional self-propelled agricultural suction equipment. In the working state, the nozzle is vertically arranged close to the ground to pick up crops such as sunflower seed trays and straws dried in the sunflower cultivated land. During the operation of the equipment, in the face of miscellaneous crops with different postures and shapes, the horizontal cutting knife assembly located in front of the nozzle can cut and break the straw crops that are randomly stacked or lying on the ground; while the sunflower trays scattered on the ground are sucked into the nozzle after passing under the horizontal cutting knife assembly; for the upright stems and root stubbles with roots planted underground, while being pushed down by the equipment, the nozzle and the cutter holder, they are cut off by the horizontal cutting knife assembly and fall to the ground, and are processed and sucked into the nozzle together with the scattered sunflower trays, straws, etc.; in addition, the side end plate and the material baffle arranged at the feeding end of the nozzle can accumulate materials and assist the materials to smoothly enter the nozzle during operation, and at the same time can seal the two sides and the rear side of the low-pressure material accumulation area at the feeding port of the nozzle, enhance the air suction effect, and effectively improve the working efficiency. When the nozzle passes over obstacles such as ground protrusions or stones, the elastic material baffle releases the obstacles through its own deformation, avoiding their accumulation and jamming under the feeding port.

[0016] Compared with the suction port of traditional negative pressure picking equipment, the sunflower tray nozzle of the present invention can shear and process sunflower straws with different shapes and in a disorderly manner while sucking materials, enabling the materials to smoothly enter the suction pipeline without over-grinding the straws and sunflower trays, overcoming the problems of poor adaptability of existing equipment, difficulty in dealing with complex situations, low picking efficiency, serious loss, etc. In particular, it solves the interference of upright stems and crop root stubbles to the picking operation, avoids the phenomenon that the upright poles fall and press other materials, affecting the picking, greatly improves the working efficiency, shortens the operation time, reduces the operation difficulty and operation cost of material picking, reduces resource waste, and increases agricultural income.

[0017] The technical solution of the present invention will be described in detail below with reference to the drawings and specific embodiments. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present invention; Figure 2 It is a perspective view of Embodiment 1 of the present invention; Figure 3 It is the working state diagram of Embodiment 1 of the present invention; Figure 4 It is the schematic structural diagram of Embodiment 2 of the present invention; Figure 5 It is the three-dimensional schematic diagram of Embodiment 2 of the present invention; Figure 6 It is the schematic structural diagram of the one-way gate turning rod of Embodiment 2 of the present invention; Figure 7 It is the schematic structural diagram of Embodiment 3 of the present invention; Figure 8 It is the schematic diagram of the side end plate and the material baffle of Embodiment 3 of the present invention.

[0019] Figure 9 It is the schematic structural diagram of the windrower of Embodiment 3 of the present invention; Figure 10 It is the schematic diagram of the suction nozzle and the longitudinally arranged cutter of Embodiment 4 of the present invention; Figure 11 It is the schematic diagram of the longitudinally arranged cutter of Embodiment 5 of the present invention. Specific embodiments

[0020] In the figure: 1 - suction nozzle, 10 - side end plate, 101 - movable plate body, 2 - transverse cutter assembly, 30 - roller brush, 31 - elastic curtain, 32 - chain plate, 33 - closely planted row brush, 40 - agricultural cutter assembly, 41 - circular saw, 42 - pressure wheel, 5 - suction pipe, 6 - self-propelled agricultural suction equipment, 70 - dividing board, 71 - one-way gate turning rod, 72 - auxiliary material deflector roller, 8 - straw, 9 - windrower. Embodiment 1

[0021] The sunflower head special suction nozzle of the present invention has a simple and reasonable structure and is installed on the suction pipe of a conventional self-propelled agricultural suction equipment and used in supporting with the suction device. The descriptions of the orientation indication and the positional relationship in this article (such as "front, back, up, down, horizontal", etc.) are only used to help understand the structural features of the products of the present invention, rather than special limitations on the components.

[0022] From Figures 1 to 3 it can be known that the technical solution of the present invention includes an external power device, a suction nozzle 1, a transverse cutter assembly 2, and a material baffle.

[0023] The main body of the suction nozzle 1 is a tubular channel with a rectangular cross-section (i.e., a plane perpendicular to the feeding direction of the suction nozzle). The long side of the rectangle is the width of the main body of the suction nozzle, which can be determined according to the picking width of the sunflower ridges. The two long side plates (the width of the suction nozzle) on the opposite sides of the main body of the suction nozzle 1 are the front baffle and the rear baffle respectively.

[0024] The described horizontal cutter assembly 2 adopts the cutter assembly of a conventional agricultural harvester; the horizontal cutter assembly 2 is assembled at the feed inlet of the suction nozzle 1 and is arranged along the edge of the front baffle of the feed inlet of the suction nozzle, and the cutter teeth of the horizontal cutter assembly 2 point to the feed direction of the suction nozzle; The left and right side baffles of the suction nozzle 1 (i.e., the short side side plate bodies of the rectangle) extend away from the feed inlet end parallel to the axis of the suction nozzle body, forming outwardly extending side end plates 10 on both sides of the feed inlet of the suction nozzle, so that the total length of the plate bodies on both sides of the feed end of the suction nozzle is longer than the size of the front and rear baffles.

[0025] In this embodiment, the material baffle uses a rotary brush 30. The rotary brush shaft is assembled on the side of the rear baffle of the feed inlet of the suction nozzle through a lifting lug, and brush strips or spring teeth made of rubber or nylon are densely arranged radially around the rotary brush shaft; the side end plates 10 and the rotary brush 30 surround the left, right and rear sides of the feed inlet of the suction nozzle to form a low-pressure material accumulation area.

[0026] In this embodiment, the suction nozzle is provided with at least one set of longitudinal cutters. The longitudinal cutters adopt agricultural cutter assemblies 40 (such as the cutter assembly of a harvester). The agricultural cutter assemblies 40 are assembled inside the suction nozzle and divide the internal space of the suction nozzle into left and right parts along the cutting direction perpendicular to the cutting direction of the horizontal cutting assembly; the cutter teeth of the agricultural cutter assemblies 40 point to the feed direction of the suction nozzle.

[0027] The special sunflower head suction nozzle of the present invention is connected to the end of the suction pipe 5 of a conventional self-propelled agricultural suction device 6 to form a suction channel. In the working state, the feed inlet of the suction nozzle is arranged facing the ground. The two side end plates 10 of the suction nozzle are located outside the ridge, and it is ensured that the free ends of the side end plates 10 and the brush strips or spring teeth of the rotary brush 30 are close to the ground, forming a low-pressure material accumulation space surrounded by the left, right and rear sides and with the bottom being the ground and only the front side being open between the feed inlet of the suction nozzle and the ground. At this time, the horizontal cutter assembly 2 is located on the advancing side of the device, the cutter holder is horizontally arranged transversely and the cutter teeth point to the ground. The diameter of the rotary brush can be selected according to the ridge height or the on-site crop situation.

[0028] The horizontal cutter assembly 2, the longitudinal cutter and the rotary brush 30 are connected to an external power device through a conventional transmission mechanism; in actual use, the hydraulic system or the power take-off system of the self-propelled agricultural suction device can be directly used as the external power device.

[0029] In the sunflower cultivated land after harvesting, the postures and shapes of crops such as straws are different and intertwined. When the picking device moves forward, the sunflower discs or straws scattered on the ground pass under the teeth of the horizontally arranged cutter assembly on the side of the front baffle of the suction nozzle and reach the low-pressure material accumulation area of the suction nozzle. The sunflower discs and shorter straws are sucked into the suction nozzle. When encountering lodged stalks with a length greater than the size of the feed inlet or stalks entangled with each other, after stacking in the low-pressure material accumulation area or being sucked off the ground, they are placed on the horizontally arranged cutter assembly, cut off, and smoothly enter the feed inlet, preventing materials from accumulating at the end of the suction nozzle. For the long straws entering the suction nozzle horizontally (along the long side of the rectangular suction nozzle) or the rod materials partially winding into the material suction channel, they are cut into short rods by the vertically arranged cutter (agricultural cutter assembly 40) to avoid jamming in the material suction pipeline. Since the volume and shape of the sunflower disc are completely different from those of the straw, it is not easy to enter the teeth of the cutter assembly and be chopped, ensuring the integrity of the sunflower disc shape. During this process, the upright straws with roots planted underground are pushed down by the suction nozzle and the cutter and cut off by the horizontally arranged cutter assembly and fall to the ground, gathering in the low-pressure material accumulation area together with other materials scattered on the ground. After the above process, they smoothly enter and pass through the material suction channel and are transported to the hopper or post-treatment equipment for processing.

[0030] In the present invention, the cutting device only performs simple cutting treatment on the crops and uses negative pressure transportation. Compared with the transportation or shredder of traditional equipment, it not only solves the problem of jamming and blocking of long straws in the material suction pipeline, enabling the picking operation to proceed smoothly, but also ensures the integrity of the morphological structure of materials such as sunflower discs, greatly improving the appearance quality of the picked sunflower discs, avoiding resource waste caused by excessive fragmentation of sunflower discs during the picking process, and also avoiding the difficulty of secondary drying caused by excessive pulverization of undried materials.

[0031] The side end plate and the material baffle arranged at the feed inlet of the suction nozzle can play a role in gathering materials and assisting the materials to smoothly enter the suction nozzle. At the same time, they close the two sides and the rear side of the low-pressure material accumulation area below the suction nozzle to enhance the air suction effect and improve work efficiency.

[0032] In addition, the roller brush of the material baffle in this embodiment rotates driven by an external power device, and its rotation direction is opposite to the rotation direction of the wheels of the self-propelled agricultural material suction device. The densely arranged elastic brush strips or elastic teeth on the roller brush rotate around the axis. Besides playing a role in closing the rear of the low-pressure material suction area, when the brush strips and the like rotate to the front side of the roller brush shaft, they pick up the lighter crops such as sunflower discs from bottom to top to assist them in entering the suction nozzle. When the suction nozzle passes over obstacles such as stones or protrusions in the ridge, the heavier stones and the like cannot be sucked into the material suction channel, and the elastic brush strips (material baffle) release the protrusions through their own deformation to avoid blockage or jamming of the feed inlet.

[0033] The sunflower disc suction nozzle of the present invention can pre-process sunflower stems of various shapes in cultivated land so that they can smoothly enter the suction pipe, solving the problems of poor adaptability of existing equipment, difficulty in coping with complex situations, low picking efficiency, and serious loss. In particular, it solves the interference of upright stems and crop stubble on the picking operation, and will not cause excessive crushing of crops, thereby greatly improving work efficiency, reducing operation difficulty and operating costs, and reducing resource waste. Example 2

[0034] See also Figures 4 to 6 The difference between this embodiment and embodiment 1 is that a pole processing mechanism is provided in front of the suction nozzle. The pole processing mechanism in this embodiment is a pole crop divider. The pole crop divider structure includes a crop dividing plate 70 and a one-way gate rotating rod 71. The dividing plate 70 is perpendicular to the front baffle of the suction nozzle 1 and parallel to the axis of the tubular channel of the suction nozzle (i.e., the movement path of the material in the suction nozzle), and is installed in parallel on the outer side of the front baffle of the suction nozzle 1, dividing the space in front of the front baffle of the suction nozzle 1 into a plurality of parallel guide channels on the left and right; At least two one-way gate rotating rods 71 are arranged in each guide channel, and the one-way gate rotating rods 71 in each guide channel are arranged in sequence from the channel entrance end to the rear with the front higher and the rear lower; the one-way gate rotating rod 71 at the lowest end (i.e., located on the suction nozzle side of the channel) is arranged on the front side of the horizontal cutting knife assembly 2.

[0035] The main rod body of the one-way barrier turning rod 71 is L-shaped, and its vertical section is hingedly connected to the side wall of the dividing plate 70, and is provided with a reset spring and a limit mechanism to ensure that the horizontal section of the one-way barrier turning rod 71 is perpendicular to the dividing plate 70 and placed horizontally in the guide channel under normal circumstances; the horizontal section of the one-way barrier turning rod can only swing toward the exit end of the guide channel (that is, the side of the guide channel near the suction nozzle) after being subjected to force.

[0036] As a preferred embodiment, the vertical pole divider further includes a horizontal auxiliary material moving roller 72. This auxiliary material moving roller 72 is mounted on the front baffle of the suction nozzle via a lifting lug and is located between the end of the guide channel and the horizontal cutting blade assembly 2. The auxiliary material moving roller 72 is arranged above the extension of the line connecting the one-way gate rotating rods 71 in the guide channel, opposite the end one-way gate rotating rod 71. The auxiliary material moving roller is driven by an external power unit (the power unit of the walking mechanism).

[0037] During the movement of the self-propelled agricultural suction equipment, the straw 8 (or stubble) standing upright in the field enters the guide channel between the straw dividing plates, and sequentially touches the horizontal sections of the one-way gate rotating rods 71 in the channel, causing them to swing back to pass the straw; when the straw moves to the end of the channel, it is pushed and tilted by the auxiliary material roller 72 and / or the suction nozzle 1, and rests on the horizontal section of the one-way gate rotating rod; after the lower section of the straw or stubble is cut off by the row of knives of the horizontal cutting knife assembly, the rod body tilts and slides down along the horizontal section of the one-way gate rotating rod, and is driven by the subsequent straw entering the guide channel and the rotation of the auxiliary material roller, and is gradually cut into short rods by the horizontal cutting knife assembly and falls down, and is sucked into the suction channel together with the ground material.

[0038] In addition, if the upright straw in the cultivated land is relatively short, the upright straw processing mechanism can use conventional commercially available agricultural cutting tables, rotary knives or rotary saws and other cutters, and use the pre-installed support arms of the self-propelled agricultural suction equipment to support the front of the suction nozzle, and cut the straw and suck it into the suction nozzle together with the scattered sunflower discs.

[0039] Another difference between this embodiment and embodiment 1 is that the material stopper is an elastic curtain 31 hung in parallel on the edge of the baffle behind the suction nozzle. The elastic curtain 31 can be made of a thin curtain plate made of rubber material, with a simple structure, low cost, and good wear resistance and elasticity.

[0040] The difference between this embodiment and embodiment 1 is that the side end plate and the suction nozzle adopt a detachable connection structure. The movable plate body 101 can be made of wear-resistant material or rubber material with good elasticity, and assembled at the end of the suction nozzle side plate as the side end plate. This structure can be replaced at any time according to the wear of the movable plate body, thereby extending the service life of the suction nozzle.

[0041] Other technical features of this embodiment are the same as those of Embodiment 1. Example 3

[0042] from Figures 7 to 9 As can be seen, this embodiment differs from Example 2 in that the longitudinal cutter utilizes a circular saw 41 or a thumbwheel, which is mounted via an axle on the outer wall of the long side plate (front or rear baffle) of the suction nozzle 1. Strip-shaped holes are provided in the nozzle wall at locations corresponding to the circular saw. The circular saw blade or thumbwheel extends through the strip-shaped holes into the interior of the nozzle, and the saw teeth or thumbwheel rod abuts the opposite side of the nozzle plate, dividing the interior of the nozzle into two sections. Multiple longitudinal cutters can also be installed in parallel, depending on the width of the nozzle or the crop being picked. Specifically, multiple circular saws (or thumbwheels) can be coaxially assembled to divide the interior of the nozzle into several sections. The circular saw or thumbwheel is driven by the power system of the self-propelled agricultural suction equipment to cut through any loose material or long straw entering the feed inlet, preventing clogging of the suction channel.

[0043] Another difference between this embodiment and Embodiment 2 is that the vertical pole processing mechanism is a vertical pole removing device, and this vertical pole removing device uses a windrower. The windrower 9 uses commercially available products such as a straw windrower table or a special sunflower straw cutter, and is installed in front of the suction nozzle through a lifting lug, or is hoisted in front of the suction nozzle by using the boom of a self-propelled agricultural suction device and is driven by an external power device. During the equipment's travel, the windrower can cut and remove the upright stalks or root stubbles in front of the feed inlet and throw them to the side of the suction device, and only collect materials such as sunflower disks scattered on the ground.

[0044] In addition, the baffle in this embodiment uses a plurality of groups of chain plates 32 that are arranged side by side and hung on the edge of the rear baffle of the suction nozzle inlet. Each group of chain plates is formed by connecting a plurality of strip-shaped plates in series and hingedly to form a multi-jointed curtain; during operation, the chain plates can droop by their own weight to prevent them from being involved in the suction nozzle under the influence of the pressure difference on both sides of the plate body.

[0045] Other technical features of this embodiment are the same as those of Embodiment 2. Embodiment 4

[0046] See Figure 10 It can be seen that the difference between this embodiment and Embodiment 3 is that a set of longitudinally arranged cutters is composed of a pair of oppositely arranged circular saws 41. The main shafts of the circular saws 41 are respectively arranged on the outer walls of the front and rear baffles of the suction nozzle 1. The opposite sides of the two saw blades respectively extend into the suction nozzle through the strip-shaped holes opened on the front and rear baffles, and the tooth parts on the corresponding sides of the two saw blades are adjacent to each other, dividing the internal space of the suction nozzle into left and right parts. The circular saws are connected to an external power device through a conventional transmission mechanism such as a chain.

[0047] Another difference between this embodiment and Embodiment 3 is that the baffle is a thick planting row brush 33 arranged on the edge of the rear baffle of the suction nozzle. The thick planting row brush 33 is made of a wear-resistant material with good elasticity, such as a row brush with nylon filaments and steel wires mixedly planted, which plays a role in closing the rear of the low-pressure suction area, improves the negative pressure at the feed inlet, and can adapt to the rapid changes in the ridge ditch and the ground height through deformation.

[0048] In addition, ground wheels can be assembled on the side of the suction nozzle according to actual needs to support the suction nozzle to move forward with the undulation of the ground, which can effectively keep the distance between the feed inlet of the suction nozzle and the ground unchanged.

[0049] Other technical features of this embodiment are the same as those of Embodiment 3. Embodiment 5

[0050] See Figure 11, the difference between this embodiment and Embodiment 4 is that the longitudinally arranged cutter is composed of a circular saw and a pressure wheel 42 arranged oppositely. The wheel axle of the pressure wheel 42 and the circular saw axle are respectively assembled on the outer walls of the front and rear baffles of the suction nozzle. The circular saw blade and the pressure wheel are inserted into the inside of the suction nozzle through the strip-shaped holes in the wall of the suction nozzle, and the circular saw teeth are adjacent to the outer circumferential surface of the pressure wheel, separating the internal space of the suction nozzle. This structure only needs the circular saw (axle) to be connected to the external power device, which simplifies the structure. When the crops pass between the circular saw and the pressure wheel, the pressure wheel acts as a driven wheel to press the material to assist the saw blade in cutting.

[0051] Other technical features of this embodiment are the same as those of Embodiment 4.

[0052] Finally, it should be noted that the above embodiments are used to illustrate the technical solutions of the present invention rather than to limit them. Those skilled in the art make modifications to the implementation manners or perform equivalent replacements on some technical features without departing from the essence of the technical solutions of the present invention, and all should be covered within the scope claimed by the present invention.

Claims

1. A special suction nozzle for sunflower trays, comprising an external power device, characterized in that: It also includes a suction nozzle (1), a horizontal cutting knife assembly (2), and a material stopper; The main body of the suction nozzle (1) is a tubular channel with a rectangular cross section, and the two opposite long side plates of the suction nozzle main body are respectively the front and rear baffles; the transverse cutting knife assembly (2) is assembled at the feed port of the suction nozzle (1) and arranged along the edge of the front baffle of the feed port, and the blade teeth of the transverse cutting knife assembly (2) point to the feed direction of the suction nozzle; the material stopper is installed on the rear baffle side of the feed port of the suction nozzle (1); Left and right baffles of the suction nozzle (1) extend from the feed end away from the feed inlet, forming outwardly projecting side end plates (10) on both sides of the suction nozzle feed inlet; The side end plate (10) and the material stopper enclose the three sides of the feed port of the suction nozzle (1) to form a low-pressure material accumulation area; The transverse cutting blade assembly (2) is connected to an external power device.

2. The special suction nozzle for sunflower trays according to claim 1, characterized in that: The suction nozzle (1) is provided with at least one set of longitudinal cutters, and the longitudinal cutters are arranged in a cross-cutting direction with the transverse cutting knife assembly.

3. The special suction nozzle for sunflower trays according to claim 2, characterized in that: The longitudinal cutter adopts an agricultural cutter assembly (40), and the agricultural cutter assembly (40) is assembled inside the suction nozzle, and the blade teeth point to the feeding direction of the suction nozzle.

4. The special suction nozzle for sunflower trays according to claim 2, characterized in that: The longitudinal cutter adopts a circular saw (41) or a thumbwheel, and the circular saw shaft or thumbwheel shaft is assembled on the outer wall of the front baffle and / or the rear baffle of the suction nozzle (1), and the circular saw blade or thumbwheel lever is inserted into the strip hole of the suction nozzle wall and separates the internal space of the suction nozzle.

5. The special suction nozzle for sunflower trays according to claim 2, characterized in that: The longitudinal cutter is composed of a circular saw and a pressure wheel (42) arranged opposite to each other. The circular saw shaft and the pressure wheel (42) are respectively assembled on the outer walls of the two opposite long side plates of the suction nozzle body. The circular saw blade and the pressure wheel are inserted into the suction nozzle through the strip hole of the suction nozzle wall, and the circular saw teeth are adjacent to the outer circumferential surface of the pressure wheel.

6. The special suction nozzle for sunflower trays according to claim 1, characterized in that: The outer side of the front baffle of the suction nozzle (1) is provided with a vertical pole divider for processing upright straws, and the vertical pole divider includes a straw dividing plate (70) and a one-way gate rotating rod (71); the straw dividing plate (70) is perpendicular to the front baffle of the suction nozzle (1) and parallel to the axis of the suction nozzle body and is arranged in parallel on the outer side of the front baffle of the suction nozzle (1), dividing the outer space of the front baffle of the suction nozzle (1) into a plurality of parallel guide channels; at least two one-way gate rotating rods (71) are arranged in each guide channel, and the one-way gate rotating rods (71) in each guide channel are arranged in sequence from the channel inlet end to the rear with the front higher and the rear lower; the lowest one-way gate rotating rod (71) is arranged in front of the horizontal cutting knife assembly (2).

7. The special suction nozzle for sunflower trays according to claim 6, characterized in that: The vertical pole divider further comprises a horizontal auxiliary material roller (72), which is arranged between the end of the guide channel and the horizontal cutter assembly (2), and is arranged relative to the one-way gate rotating rod (72) at the end.

8. A special suction nozzle for sunflower plates according to claim 1, characterized in that: A pole cutter for processing upright straw is provided on the outer side of the front baffle of the suction nozzle (1). The pole cutter adopts a conventional mower (9), a cutting table, a rotary knife or a rotary saw.

9. The special suction nozzle for sunflower plates according to claim 1, characterized in that: The material stopper adopts a roller brush (30), an elastic curtain (31), a densely planted row of brushes (33) or a door curtain-shaped chain plate (32).

10. A special suction nozzle for sunflower trays according to claim 1, characterized in that: The side end plate and the suction nozzle adopt a detachable movable plate body connection structure.

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