Special suction nozzle for sunflower disc

Abstract

The utility model relates to agricultural machinery and equipment technical field, and concretely is a kind of special suction nozzle of sunflower disc.The utility model discloses the technical scheme including suction nozzle, the transverse cutter assembly of assembling in the baffle edge of suction nozzle feed inlet, and the material stopper of installing in the baffle edge of suction nozzle feed inlet rear baffle;The cutter tooth of transverse cutter assembly points to suction nozzle feeding direction;The baffle of left and right sides of suction nozzle extends from the end of feed inlet, away from feed inlet along suction nozzle feeding direction, and with material stopper in the end of suction nozzle feed inlet and encloses low-pressure material accumulation area.Between the utility model and the conventional self-propelled agricultural suction equipment suction pipe connection, using cutter assembly to the crop of different forms such as material and root system planted in the ground upright stem etc. is handled, material pickup is carried out by negative pressure suction mode, solve the existing equipment poor adaptability, difficult efficient operation etc. problem, greatly improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery and equipment technology, specifically a suction nozzle for sunflower heads. Background Technology

[0002] Sunflower seed heads are rich in nutrients and are a high-quality feed ingredient. After harvesting, sunflower seed heads are usually left to dry in the field. Once dry, they are recycled and crushed for use as livestock feed, or processed into farmyard manure, solid fuel, etc. Conventional crop harvesting devices are generally divided into two categories: rake-type and air-suction type. Because harvested sunflower fields contain a mix of thick root stubble with roots embedded in the ground, upright stalks, scattered seed heads, and long stalks mixed in with the seed heads, conventional harvesting devices struggle to simultaneously handle crops of varying shapes and sizes. For example, the rake-type harvesting device's rake-collecting components easily become entangled in stalks and other long, thin crops, making it difficult to move the equipment. This necessitates frequent stops to clean the rake-collecting components, hindering continuous operation, reducing efficiency, increasing workload and time, and to some extent increasing equipment and labor costs. In some cases, the harvesting revenue may even exceed the harvesting costs. Conventional air suction devices are mostly used for picking up scattered crops such as stems, leaves, fine straw, and hay. Their suction nozzles only serve as air hoods and are difficult to deal with the complex situation of mixed stems and straws of various shapes in cultivated land. In particular, after upright straws are pushed down by the worktable of the picking equipment, they cover the scattered sunflower heads and flat straws, hindering the picking of sunflower heads and other materials. This results in incomplete picking or clogging of the suction nozzles, affecting picking efficiency and causing serious waste.

[0003] Furthermore, since the sunflower harvesting season coincides with the rainy season, the drying and harvesting time for sunflower seed heads is concentrated and short. Once there are changes in weather such as rain, the sunflower seed heads and other materials become damp and moldy, resulting in countless losses every year due to the inability to collect them in time, wasting resources and polluting the environment. Utility Model Content

[0004] This utility model provides a special suction nozzle for sunflower heads, which is connected to the end of the suction pipe of a self-propelled crop picking device. During the process of the crop picking device moving and picking up sunflower heads, it can quickly cut and / or shred uprights, long stalks and other obstacles that hinder the picking operation, thereby eliminating the interference of uprights and long stalks, improving work efficiency and reducing operating costs.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A special suction nozzle for sunflower heads is installed at the end of the feed tube of a conventional negative pressure crop picking device. The technical solution includes an external power unit, a suction nozzle, a horizontal cutter assembly, and a feed stopper.

[0007] The main body of the suction nozzle is a tubular channel with a rectangular cross-section, and the two long side plates opposite each other are front and rear baffles; the horizontal cutter assembly is assembled at the feed inlet of the suction nozzle and is arranged along the edge of the front baffle of the feed inlet, and the blades of the horizontal cutter assembly point in the feed direction of the suction nozzle; the baffle is installed on the rear baffle side of the feed inlet of the suction nozzle.

[0008] The baffles on both sides of the suction nozzle extend away from the feed inlet from the feed end, forming outward side end plates on both sides of the feed inlet of the suction nozzle;

[0009] The side end plate and the baffle block the suction nozzle inlet on three sides to form a low-pressure material accumulation zone;

[0010] The horizontally positioned cutting blade assembly is connected to an external power unit.

[0011] Furthermore, the suction nozzle is provided with at least one set of longitudinal cutters, which are arranged in a cross direction with the cutting direction of the transverse cutter assembly.

[0012] Furthermore, the longitudinal cutter adopts an agricultural cutter assembly, which is assembled inside the suction nozzle with the blades pointing in the feeding direction of the suction nozzle.

[0013] Furthermore, the longitudinal cutter is a circular saw or a dial wheel. The circular saw shaft or dial wheel shaft is mounted on the outer wall of the front baffle and / or rear baffle of the suction nozzle. The lever of the circular saw blade or the dial wheel is inserted through the strip hole in the suction nozzle wall and separates the internal space of the suction nozzle.

[0014] Furthermore, the longitudinal cutter consists of a circular saw and a pressure roller arranged opposite to each other. The circular saw shaft and the pressure roller shaft are respectively mounted on the outer walls of the two opposite long side plates of the suction nozzle body. The circular saw blade and the pressure roller are inserted into 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 roller.

[0015] Furthermore, the outer side of the suction nozzle front baffle is provided with a pole divider for handling upright straw. The pole divider includes a dividing plate and a one-way gate lever. The dividing plate is arranged in parallel on the outer side of the suction nozzle front baffle, perpendicular to the suction nozzle front baffle and parallel to the axis of the suction nozzle body, dividing the space outside the suction nozzle front baffle into multiple parallel guide channels. Each guide channel is provided with at least two one-way gate levers, and the one-way gate levers in each guide channel are arranged in a front-high-back-low sequence from the channel inlet end to the rear. The lowest one-way gate lever is located on the front side of the horizontal cutter assembly.

[0016] Furthermore, the pole divider also includes a horizontally placed auxiliary material roller, which is located between the end of the guide channel and the horizontal cutter assembly, and is positioned opposite to the one-way gate lever at the end.

[0017] Furthermore, the outer side of the suction nozzle front baffle is provided with a pole cutter for processing upright straw. The pole cutter adopts a conventional stalk cutter, cutting table, rotary cutter or rotary saw.

[0018] Furthermore, the stopper can be made of roller brush, elastic curtain, densely packed brush or curtain-like chain plate.

[0019] Furthermore, the side end plate and the suction nozzle are connected by a detachable movable plate structure.

[0020] The beneficial effects of this utility model are:

[0021] This utility model features a special suction nozzle for sunflower heads that connects to the suction pipe of a conventional self-propelled agricultural suction device. In operation, the suction nozzle is positioned vertically close to the ground to pick up sunflower seed heads, straw, and other crops that are drying in sunflower fields. During operation, the horizontal cutter assembly at the front of the suction nozzle can cut and separate haphazardly piled or flattened straw-like crops when encountering mixed crops of varying postures and shapes. Sunflower heads scattered on the ground are sucked into the suction nozzle after passing under the horizontal cutter assembly. For upright stems and stubble with roots planted in the ground, they are cut by the horizontal cutter assembly while being pushed down by the equipment, suction nozzle, and cutter frame, and then fall to the ground, being processed and sucked into the suction nozzle along with the scattered sunflower heads and straw. In addition, the side plate and baffle at the feed end of the suction nozzle can accumulate materials and facilitate the smooth entry of materials into the suction nozzle. At the same time, it can seal the sides and rear of the low-pressure accumulation area at the feed port of the suction nozzle, enhancing the suction effect and effectively improving work efficiency. When the suction nozzle passes over obstacles such as ground protrusions or stones, the elastic baffle releases the obstacles through its own deformation, preventing them from accumulating and getting stuck below the feed port.

[0022] Compared to the suction port of traditional negative pressure picking equipment, the sunflower head suction nozzle of this utility model can simultaneously shear sunflower stalks of various shapes and disordered patterns while picking up materials, allowing the materials to enter the suction pipe smoothly without excessively crushing the stalks and sunflower heads. This overcomes the problems of poor adaptability, inability to handle complex situations, low picking efficiency, and serious loss of existing equipment. In particular, it solves the problem of interference from upright stalks and crop stubble on the picking operation, and avoids the phenomenon of fallen stalks covering other materials and affecting the picking process. This significantly improves work efficiency, shortens operation time, reduces the difficulty and operating cost of material picking, reduces resource waste, and increases agricultural income.

[0023] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0025] Figure 2 This is a perspective view of Embodiment 1 of the present utility model;

[0026] Figure 3 This is a diagram showing the working state of Embodiment 1 of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0028] Figure 5 This is a perspective view of Embodiment 2 of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the one-way barrier gate lever in Embodiment 2 of this utility model;

[0030] Figure 7 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0031] Figure 8 This is a schematic diagram of the side end plate and the baffle of Embodiment 3 of this utility model.

[0032] Figure 9 This is a schematic diagram of the scorching device structure in Embodiment 3 of this utility model;

[0033] Figure 10 This is a schematic diagram of the suction nozzle and vertically placed cutter in Embodiment 4 of this utility model;

[0034] Figure 11 This is a schematic diagram of the vertically placed cutter in Embodiment 5 of this utility model. Detailed Implementation

[0035] In the diagram: 1-Suction nozzle, 10-Side end plate, 101-Modible plate, 2-Horizontal cutter assembly, 30-Roller brush, 31-Elastic curtain, 32-Chain plate, 33-Dense planting brush, 40-Agricultural cutter assembly, 41-Circular saw, 42-Pressure roller, 5-Suction pipe, 6-Self-propelled agricultural material suction equipment, 70-Divider board, 71-One-way gate lever, 72-Auxiliary material roller, 8-Straw, 9-Cutter and shriveler. Example 1

[0036] This utility model features a simple and reasonable suction nozzle specifically designed for sunflower seed trays. It is installed on the suction pipe of a conventional self-propelled agricultural material suction device and used in conjunction with the suction device. Descriptions of orientation indicators and positional relationships (such as "front, back, up, down, horizontal," etc.) in this document are only used to help understand the structural features of this utility model and are not intended to limit the specific components referred to.

[0037] from Figures 1-3 As can be seen, the technical solution of this utility model includes an external power unit, a suction nozzle 1, a horizontally placed cutter assembly 2, and a material stopper.

[0038] 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 field. The two long sides (the width of the suction nozzle) plates on opposite sides of the main body of the suction nozzle 1 are the front baffle and the rear baffle, respectively.

[0039] The 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 blades of the horizontal cutter assembly 2 point in the feed direction of the suction nozzle.

[0040] The left and right side baffles (i.e. rectangular short side plates) of the suction nozzle 1 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 suction nozzle feed inlet, so that the total length of the plates on both sides of the suction nozzle feed end is longer than the size of the front and rear baffles.

[0041] In this embodiment, the baffle uses a roller brush 30. The roller brush shaft is mounted on the rear baffle side of the suction nozzle inlet via a lifting lug. Rubber or nylon brush strips or spring teeth are densely distributed radially around the roller brush shaft. The side end plate 10 and the roller brush 30 surround the side and rear three sides of the suction nozzle inlet to form a low-pressure material accumulation area.

[0042] In this embodiment, the suction nozzle is provided with at least one set of longitudinal cutters. The longitudinal cutters are agricultural cutter assemblies 40 (such as harvester cutter assemblies). The agricultural cutter assemblies 40 are assembled inside the suction nozzle and divide the internal space of the suction nozzle into left and right sides along the cutting direction perpendicular to the horizontal cutting assembly. The blades of the agricultural cutter assemblies 40 point towards the feeding direction of the suction nozzle.

[0043] This utility model's sunflower-shaped suction nozzle is connected to the suction pipe 5 of a conventional self-propelled agricultural material suction device 6 to form a suction channel. In operation, the suction nozzle's inlet faces the ground, and the two side end plates 10 of the nozzle are located outside the ridge, ensuring that the free ends of the side end plates 10 and the brush strips or spring teeth of the roller brush 30 are close to the ground. This creates a low-pressure material accumulation space between the suction nozzle's inlet and the ground, enclosed on three sides (side and rear), with the ground at the bottom and only the front open. At this time, the horizontally positioned cutter assembly 2 is located on the forward side of the device, with the cutter holder horizontally arranged and the blades pointing towards the ground. The diameter of the roller brush can be selected according to the ridge height or the crop conditions on site.

[0044] The horizontal cutter assembly 2, the vertical cutter, and the roller brush 30 are connected to an external power unit through a conventional transmission mechanism; in actual use, the hydraulic system or power output system of the self-propelled agricultural material suction equipment can be directly used as the external power unit.

[0045] In sunflower fields after harvest, the stalks and other crop residues are varied in shape and intertwined. As the suction equipment moves, sunflower heads or stalks scattered on the ground pass under the blades of the horizontal cutter assembly located on the side of the suction nozzle's front baffle, reaching the low-pressure accumulation zone of the nozzle. Sunflower heads and shorter stalks are sucked into the nozzle. When encountering lodged stalks longer than the feed inlet or stalks tangled together, they are piled up in the low-pressure accumulation zone or sucked off the ground, then placed on the horizontal cutter assembly and cut, smoothly entering the feed inlet, preventing material accumulation at the nozzle end. Longer stalks or stalks entering the nozzle laterally (along the long side of the nozzle rectangle) are handled differently. Some of the intertwined stalks entering the suction channel are cut into short stalks by the longitudinal cutter (agricultural cutter assembly 40) to prevent them from getting stuck in the suction channel. Because the sunflower heads are different in size and shape from the straw, they are not easy to enter the cutter assembly and be cut by the blades, thus ensuring the integrity of the sunflower head shape. During this process, the upright straw with roots planted in the ground is pushed down by the suction nozzle and the cutter, and cut down by the transverse cutter assembly. It gathers in the low-pressure accumulation area along with other materials scattered on the ground. After the above process, it smoothly enters and passes through the suction channel to be transported to the hopper or post-processing equipment for processing.

[0046] In this invention, the cutting device performs simple cutting of the crop and utilizes negative pressure conveying. Compared with the conveying or crushing equipment of traditional equipment, it not only solves the problem of long straw getting stuck and blocked in the suction pipe, allowing the suction operation to proceed smoothly, but also ensures the integrity of the shape and structure of materials such as sunflower heads, greatly improving the appearance of sunflower heads after collection. It avoids the waste of resources caused by excessive crushing of sunflower heads during the collection process, and also avoids the difficulty of secondary drying caused by excessive crushing of undried materials.

[0047] The side plate and baffle installed at the feed inlet of the suction nozzle can gather the material and help it enter the suction nozzle smoothly. At the same time, it can seal the sides and rear of the low-pressure material accumulation area below the suction nozzle to enhance the suction effect and improve work efficiency.

[0048] Furthermore, in this embodiment, the baffle roller brush rotates under the drive of an external power device, and its rotation direction is opposite to that of the wheels of the self-propelled agricultural suction device. The densely embedded elastic brush strips or spring teeth on the roller brush rotate around the axis. In addition to sealing the rear of the low-pressure suction zone, when the brush strips rotate to the front of the roller brush axis, they lift lighter crops such as sunflower heads from bottom to top, assisting them to enter the suction nozzle. When the suction nozzle passes through obstacles such as stones or protrusions in the ridge, heavier stones cannot be sucked into the suction channel. The elastic brush strips (baffles) release the protrusions through their own deformation, preventing the feed inlet from being blocked or stuck.

[0049] This utility model of a sunflower disc suction nozzle can pre-treat sunflower stalks of various shapes in cultivated land, allowing them to smoothly enter the suction pipe. It solves the problems of poor adaptability, inability to cope with complex situations, low picking efficiency, and serious loss of existing equipment. In particular, it solves the interference of upright stalks and crop stubble on the picking operation, and does not cause excessive crushing of crops, which greatly improves work efficiency, reduces operation difficulty and operating costs, and reduces resource waste. Example 2

[0050] See Figures 4-6 The difference between this embodiment and embodiment 1 is that a pole processing mechanism is provided in front of the suction nozzle. In this embodiment, the pole processing mechanism is a pole divider. The pole divider structure includes a dividing plate 70 and a one-way gate rotating rod 71.

[0051] 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 side by side on the outside of the front baffle of the suction nozzle 1, dividing the space in front of the front baffle of the suction nozzle 1 into multiple left and right parallel guide channels.

[0052] At least two one-way gate levers 71 are provided in each guide channel, and the one-way gate levers 71 in each guide channel are arranged in a front-high-back-low order from the inlet end of the channel to the rear; the lowest one-way gate lever 71 (i.e. located on the side near the suction nozzle of the channel) is located on the front side of the horizontal cutter assembly 2.

[0053] The main body of the one-way gate lever 71 is L-shaped, and its vertical section is hinged to the side wall of the dividing plate 70. It is equipped with a return spring and a limiting mechanism to ensure that the horizontal section of the one-way gate lever 71 is perpendicular to the dividing plate 70 and horizontally placed in the guide channel under normal conditions. After being subjected to force, the horizontal section of the one-way gate lever can only swing towards the outlet end of the guide channel (i.e., the side of the guide channel near the suction nozzle).

[0054] As a preferred embodiment, the upright divider further includes a horizontally positioned auxiliary material roller 72. This auxiliary material 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 cutter assembly 2. The auxiliary material roller 72 is positioned above the extension line of the line connecting the one-way gate levers 71 within the guide channel, opposite to the position of the end one-way gate lever 71. The auxiliary material roller is driven by an external power unit (the power unit of the traveling mechanism).

[0055] During the movement of the self-propelled agricultural material suction equipment, the straw 8 (or stubble) standing upright in the field enters the guide channel between the dividing plates, and successively touches the horizontal section of each one-way gate lever 71 in the channel, causing it to swing back to let the straw pass. When the straw moves to the end of the channel, it is pushed and tilted by the auxiliary material roller 72 and / or suction nozzle 1, and rests against the horizontal section of the one-way gate lever. After the lower section of the straw or stubble is cut by the blades of the horizontal cutter assembly, the lever slides down the horizontal section of the one-way gate lever, and under the combined action of the straw entering the guide channel and the rotation of the auxiliary material roller, it is gradually cut into short rods by the horizontal cutter assembly and falls down, and is sucked into the suction channel along with the ground material.

[0056] In addition, if the upright straw in the cultivated land is relatively short, the straw handling mechanism can use conventional commercially available agricultural cutting tools such as cutting tables, rotary cutters, or rotary saws. The self-propelled agricultural suction equipment is supported in front of the suction nozzle by the pre-installed support arm, which cuts the straw and sucks it into the suction nozzle along with the scattered sunflower heads.

[0057] Another difference between this embodiment and embodiment 1 is that the baffle is an elastic curtain 31 that is hung in parallel on the edge of the suction nozzle rear baffle. The elastic curtain 31 can be made of rubber material to form a thin curtain plate, which has a simple structure, low cost, and good wear resistance and elasticity.

[0058] 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 101 can be made of wear-resistant material or elastic rubber material and assembled at the end of the suction nozzle side plate as a side end plate. This structure can be replaced at any time according to the wear of the movable plate, thus extending the service life of the suction nozzle.

[0059] The other technical features of this embodiment are the same as those of Embodiment 1. Example 3

[0060] from Figures 7-9 As can be seen, the difference between this embodiment and Embodiment 2 lies in that the longitudinal cutter uses a circular saw 41 or a deflector. The circular saw 41 or deflector is mounted on the outer wall of the long side plate (front or rear baffle) of the suction nozzle 1 via a wheel axle. Slotted holes are opened at corresponding locations on the suction nozzle wall and the circular saw. The circular saw blade or deflector extends into the suction nozzle through the slotted holes, and the saw teeth or deflector rod abuts against the suction nozzle plate on the opposite side, dividing the internal space of the suction nozzle into left and right sections. Multiple sets of longitudinal cutters can also be installed side-by-side according to the suction nozzle width or the type of crop being picked up, i.e., multiple circular saw blades (or deflectors) are coaxially assembled to laterally divide the inside of the suction nozzle into several parts. The circular saw or deflector is driven by the power system of the self-propelled agricultural material suction device, cutting through messy materials or long straw entering the feed inlet to prevent blockage of the suction channel.

[0061] Another difference between this embodiment and Embodiment 2 is that the pole handling mechanism is a pole removal device, which is a stalk cutter. The stalk cutter uses a commercially available straw cutting platform or a sunflower stalk cutter, etc., and is installed in front of the suction nozzle via lifting lugs, or suspended in front of the suction nozzle using the support arm of a self-propelled agricultural suction device, driven by an external power unit. During the movement of the equipment, the stalk cuts off the upright stems or stubble in front of the feed inlet and throws them to the side of the suction device, only collecting sunflower heads and other materials scattered on the ground.

[0062] In addition, the baffle in this embodiment uses multiple sets of chain plates 32 that are hung in parallel on the edge of the back baffle of the suction nozzle inlet. Each set of chain plates is formed by multiple strip plates connected in series and hinged to form a multi-joint movable curtain. During operation, the chain plates can hang down by their own weight to prevent them from being rolled into the suction nozzle due to the pressure difference between the two sides of the plate.

[0063] The other technical features of this embodiment are the same as those of Embodiment 2. Example 4

[0064] See Figure 10 As can be seen, the difference between this embodiment and embodiment 3 is that a pair of opposing circular saws 41 are used to form a longitudinal cutter. The main shafts of the circular saws 41 are respectively set on the outer walls of the front and rear baffles of the suction nozzle 1. The two saw blades extend into the suction nozzle through the strip holes opened on the front and rear baffles, and the teeth 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 conventional transmission mechanisms such as chains.

[0065] Another difference between this embodiment and embodiment 3 is that the baffle is a densely planted brush 33 set on the edge of the rear baffle of the suction nozzle. The densely planted brush 33 is made of a wear-resistant material with good elasticity, such as a brush with a mixture of nylon and steel wires. It plays the role of sealing the rear of the low-pressure suction area, increasing the negative pressure of the feed inlet, and can adapt to rapid changes in the furrow and ground height through deformation.

[0066] In addition, wheels can be installed on the side of the suction nozzle as needed to support the nozzle as it moves with the undulations of the ground, effectively keeping the distance between the nozzle inlet and the ground constant.

[0067] The other technical features of this embodiment are the same as those of Embodiment 3. Example 5

[0068] See Figure 11The difference between this embodiment and Embodiment 4 is that the longitudinal cutter consists of a circular saw and a pressure roller 42 arranged opposite to each other. The axle of the pressure roller 42 and the axle of the circular saw are respectively mounted on the outer walls of the front and rear baffles of the suction nozzle. The circular saw blade and the pressure roller are inserted into the suction nozzle through the strip-shaped holes in the suction nozzle wall, and the circular saw teeth are adjacent to the outer circumferential surface of the pressure roller, separating the internal space of the suction nozzle. This structure only requires the circular saw (shaft) to be connected to an external power device, simplifying the structure. When the crop passes between the circular saw and the pressure roller, the pressure roller acts as a driven wheel to press the material and assist the saw blade in cutting.

[0069] The other technical features of this embodiment are the same as those of Embodiment 4.

[0070] Finally, it should be noted that the above embodiments are used to illustrate the technical solution of this utility model and not to limit it. Modifications to the implementation methods or equivalent substitutions of some technical features by those skilled in the art without departing from the essence of the technical solution of this utility model should be covered within the scope of protection claimed by this utility model.

Claims

1. A special suction nozzle for sunflower heads, comprising an external power unit, characterized in that: It also includes a suction nozzle (1), a horizontal cutter assembly (2), and a feed stop; The main body of the suction nozzle (1) is a tubular channel with a rectangular cross-section, and the two long side plates opposite to each other are front and rear baffles; 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, and the blades of the horizontal cutter assembly (2) point to the feed direction of the suction nozzle; the baffle is installed on the rear baffle side of the feed inlet of the suction nozzle (1); The left and right side baffles of the suction nozzle (1) extend away from the feed inlet from the feed end, forming outward side end plates (10) on both sides of the feed inlet of the suction nozzle. The side end plate (10) and the baffle block form a low-pressure material accumulation area by surrounding the feed inlet of the suction nozzle (1) on three sides; The horizontal cutting blade assembly (2) is connected to an external power unit.

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

3. The sunflower-shaped suction nozzle according to claim 2, characterized in that: The vertical cutter uses an agricultural cutter assembly (40), which is assembled inside the suction nozzle and the blades point in the feeding direction of the suction nozzle.

4. The sunflower-shaped suction nozzle according to claim 2, characterized in that: The longitudinal cutter uses a circular saw (41) or a dial wheel. The circular saw or dial wheel is mounted on the outer wall of the front baffle and / or rear baffle of the suction nozzle (1) via a wheel axle. The lever of the circular saw blade or the dial wheel is inserted through the strip hole in the suction nozzle wall and separates the internal space of the suction nozzle.

5. A suction nozzle for sunflower heads according to claim 2, characterized in that: The longitudinal cutter consists of a circular saw and a pressure roller (42) arranged opposite to each other. The circular saw shaft and the pressure roller (42) shaft are respectively mounted on the outer walls of the two long side plates opposite to each other of the suction nozzle body. The circular saw blade and the pressure roller 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 roller.

6. The sunflower-shaped suction nozzle according to claim 1, characterized in that: The outside of the front baffle of the suction nozzle (1) is provided with a pole divider for processing upright straw. The pole divider includes a dividing plate (70) and a one-way gate lever (71). The dividing plate (70) is arranged in parallel on the outside of the front baffle of the suction nozzle (1) and parallel to the axis of the suction nozzle body, dividing the space outside the front baffle of the suction nozzle (1) into multiple parallel guide channels. At least two one-way gate levers (71) are arranged in each guide channel, and the one-way gate levers (71) in each guide channel are arranged in a front-high and rear-low order from the channel inlet end to the rear. The lowest one-way gate lever (71) is set on the front side of the horizontal cutter assembly (2).

7. A suction nozzle for sunflower heads according to claim 6, characterized in that: The pole divider also includes a horizontally placed auxiliary material roller (72), which is located between the end of the guide channel and the horizontal cutter assembly (2), and is positioned opposite to the one-way gate lever (71) at the end.

8. The sunflower-shaped suction nozzle according to claim 1, characterized in that: The outside of the front baffle of the suction nozzle (1) is provided with a pole cutter for processing upright straw. The pole cutter is a stalk cutter (9), a cutting table, a rotary cutter or a rotary saw.

9. A suction nozzle for sunflower heads according to claim 1, characterized in that: The feed stopper is made of roller brush (30), elastic curtain (31), densely planted brush (33), or curtain-shaped chain plate (32).

10. A suction nozzle for sunflower heads according to claim 1, characterized in that: The side end plate and the suction nozzle are connected by a detachable movable plate structure.

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