Straw harvester and crusher

Abstract

The present invention discloses a straw harvester and crusher, comprising: a frame; a guide assembly mounted on the frame and used to gather scattered straw together; a circular saw blade and a roller, the circular saw blade being rotatably mounted on the frame and used to cut the root of the straw; the frame being vertically rotatable above the circular saw blade and connected to a pair of rollers, the pair of rollers being able to mutually squeeze and convey the straw; a turntable being circumferentially mounted with a plurality of blades and a plurality of wind blades, the ends of the blades being closer to the feed inlet relative to the ends of the wind blades in the axial direction of the turntable. During harvesting, the harvester and crusher quickly gathers the scattered straw together and brings it closer to the circular saw blade, which is able to effectively rotate and cut the straw, and is particularly suitable for hard crop straw. The blades and the wind blades are driven by the turntable to rotate at high speed, the straw being first instantly chopped by the blades, and then, under the action of the wind blades, the chopped straw is blown toward the discharge port and discharged, achieving a very good crushing effect.

Description

Technical Field

[0001] The invention relates to agricultural machinery and equipment, in particular to a straw harvester and crusher. Background Art

[0002] Straw is the general term for the stems and leaves of mature crops, typically the remaining portion after the harvest of wheat, rice, corn, potatoes, rapeseed, cotton, and other crops. Harvesting and crushing straw can be used to return it to the fields and increase fertilizer, and the recovered straw can also be used as a renewable resource.

[0003] Crops are typically planted in rows, and harvesters can simultaneously harvest and shred multiple rows of straw. Current harvesters use centrifugal flailers to directly cut the straw. However, for harder crop straw, such as cotton stalks, the centrifugal flailers only break up the branches and leaves, leaving much of the main stem standing upright in the field, making harvesting impossible. Furthermore, the shredders are ineffective at shredding the straw. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a straw harvester and crusher that can effectively harvest and crush hard crop straw.

[0005] According to an embodiment of the present invention, the straw harvester and crusher includes: a frame; a guide assembly installed on the frame, which is used to gather scattered straw together; a circular saw blade and a roller, the circular saw blade is rotatably installed on the frame, and is used to cut the root of the straw, the frame is vertically rotated above the circular saw blade to connect a pair of the rollers, and the pair of rollers can squeeze and transport the straw with each other; a crushing device includes a crushing bin and a turntable rotatably installed in the crushing bin, the crushing bin has an inlet for inputting straw and an outlet for outputting crushed straw, the turntable is circumferentially equipped with multiple blades and multiple wind blades, and the ends of the blades are closer to the inlet in the axial direction of the turntable relative to the ends of the wind blades.

[0006] At least it has the following beneficial effects: when harvesting, the guide component of this harvester and crusher quickly gathers the scattered straw and moves it closer to the circular saw blade. Under the forced squeezing of the roller and as the frame moves, the root of the straw is sent to the circular saw blade. The circular saw blade can effectively rotate and cut the straw, which is especially suitable for agricultural straw with harder materials. The cut straw continues to be transported by the roller to the feed port of the crushing bin. The blade and wind blade rotate at high speed driven by the turntable. The straw is first instantly chopped by the blade, and the chopped straw is blown to the discharge port and discharged under the action of the wind blade. The crushing effect is very good.

[0007] According to some embodiments of the present invention, the wind blades extend in a radial direction and an axial direction of the rotating disk.

[0008] According to some embodiments of the present invention, the vehicle further includes a guide tube and a recovery bin, wherein the recovery bin is mounted on the vehicle frame, one end of the guide tube is connected to the discharge port, and the other end extends into the recovery bin or extends above the recovery bin.

[0009] According to some embodiments of the present invention, the vehicle frame is horizontally rotatably connected to a boom shaft above the guide assembly, and a boom frame is circumferentially installed on the boom shaft, and the boom frame can hug the upper part of the straw.

[0010] According to some embodiments of the present invention, the boom frame includes a hugging portion and a mounting portion, the mounting portion extends radially toward the boom axis, both ends of the hugging portion are connected to the boom axis via the mounting portion, and the hugging portion is V-shaped or U-shaped.

[0011] According to some embodiments of the present invention, the guide assembly includes two guide rods, and the two guide rods gradually shrink from an end away from the circular saw blade to an end close to the circular saw blade.

[0012] According to some embodiments of the present invention, the pair of rollers rotate in opposite directions, and the rollers are circumferentially provided with extrusion plates, the extrusion plates of the pair of rollers correspond one to one, and the extrusion plates have teeth.

[0013] According to some embodiments of the present invention, the center of the circular saw blade is rotatably connected to the frame via a vertical rotating shaft.

[0014] According to some embodiments of the present invention, the circular saw blades are arranged in multiple groups at horizontal intervals, the rollers are correspondingly arranged in multiple pairs at horizontal intervals, the frame is rotatably installed with a pair of output rollers for outputting straw, and a feeding channel for conveying straw is formed between a pair of the output rollers and each pair of the rollers, and screw push rods are respectively installed in some of the feeding channels.

[0015] According to some embodiments of the present invention, the rotation directions of the pair of output rollers are opposite, and the output rollers are circumferentially provided with extrusion plates, the extrusion plates of the pair of output rollers correspond one to one, and the extrusion plates have teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0017] Figure 1 Schematic diagram of the structure of an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of a partial structure of an embodiment of the present invention;

[0019] Figure 3 This is a schematic structural diagram of a harvesting part from one perspective in an embodiment of the present invention;

[0020] Figure 4 This is a schematic structural diagram of the harvesting part from another perspective in an embodiment of the present invention;

[0021] Figure 5 for Figure 4 A partial enlarged view of point A in the middle;

[0022] Figure 6 Schematic diagram of the structure of the boom frame in an embodiment of the present invention;

[0023] Figure 7 Schematic diagram of the structure of the crushing device in an embodiment of the present invention;

[0024] Figure 8 Schematic cross-section of a crushing device in an embodiment of the present invention.

[0025] Figure numerals: frame 1, guide assembly 2, guide rod 21, circular saw blade 3, roller 4, crushing device 5, crushing bin 51, turntable 52, feed port 53, discharge port 54, blade 55, wind blade 56, guide tube 6, recovery bin 7, arm shaft 8, arm frame 9, hugging part 91, mounting part 92, extrusion plate 10, teeth 11, output roller 12, feeding channel 13, screw push rod 14. DETAILED DESCRIPTION

[0026] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0028] In the description of the present invention, "several" means one or more, "many" means two or more, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. In the description of the present invention, unless otherwise expressly defined, terms such as "set," "install," and "connect" are to be understood broadly. Those skilled in the art can reasonably determine the specific meanings of these terms in the present invention based on the specific content of the technical solution.

[0029] Reference Figure 1 and Figure 2 The present invention discloses a straw harvester and crusher, comprising a frame 1, a guide assembly 2, a harvesting part and a crushing device 5, wherein the harvesting part comprises a saw blade 3 and a roller 4.

[0030] Specifically, the guide assembly 2 is installed on the frame 1 and is used to gather the scattered straw together. The circular saw blade 3 is rotatably installed on the frame 1 and is used to cut the root of the straw. The frame 1 rotates vertically above the circular saw blade 3 and is connected to a pair of rollers 4. The pair of rollers 4 can squeeze each other and transport the straw.

[0031] It is understandable that the root of the straw refers to the bottom of the straw, which is above the ground surface, rather than the root of the crop buried underground; the frame 1 has a power part and can move forward.

[0032] Reference Figure 7 and Figure 8 The crushing device 5 includes a crushing bin 51 and a turntable 52. The crushing bin 51 has an inlet 53 for inputting straw and an outlet 54 for outputting the crushed straw. The turntable 52 is rotatably installed in the crushing bin 51. The turntable 52 is circumferentially installed with multiple blades 55 and multiple wind blades 56. The end of the blade 55 is closer to the inlet 53 in the axial direction of the turntable 52 than the end of the wind blade 56.

[0033] When harvesting, the harvester crusher quickly gathers the scattered straw and moves it closer to the circular saw blade 3. Under the forced squeezing of the roller 4 and as the frame 1 moves, the root of the straw is sent to the circular saw blade 3. The circular saw blade 3 can effectively rotate and cut the straw, which is especially suitable for crop straw with harder material. The cut straw is continuously transported by the roller 4 to the feed port 53 of the crushing bin 51. The blade 55 and the wind blade 56 rotate at high speed under the drive of the turntable 52. The straw is first instantly chopped by the blade 55. The chopped straw is blown to the discharge port 54 and discharged under the action of the wind blade 56, and the crushing effect is very good.

[0034] In some embodiments of the present invention, the discharge port 54 is located at the upper outer edge of the crushing bin 51, and the wind blades 56 extend radially and axially along the turntable 52, so that the multiple wind blades 56 can generate a large centrifugal force when rotating at high speed, and the chopped straw can be smoothly discharged from the crushing bin 51.

[0035] In addition, refer to Figure 1, further comprising a guide tube 6 and a recovery bin 7. The recovery bin 7 is mounted on the vehicle frame 1. One end of the guide tube 6 is connected to the discharge port 54, and the other end extends into the recovery bin 7 or extends above the recovery bin 7, enabling efficient recovery. In addition, the guide tube 6 can rotate relative to the discharge port 54. By adjusting the angle of the guide tube 6, the chopped straw can be sprayed into the field, achieving the effect of returning the chopped straw to the field and increasing fertilizer.

[0036] See further Figure 4 In some embodiments of the present invention, the guide assembly 2 includes two guide rods 21, which gradually shrink from one end away from the circular saw blade 3 to the other end close to the circular saw blade 3, forming a V-shaped channel for the dispersed straw to pass through and gradually gather.

[0037] See further Figure 3 In some embodiments of the present invention, the frame 1 is horizontally rotatably connected to the boom shaft 8 above the guide assembly 2, and the boom shaft 8 is circumferentially installed with a boom frame 9. The boom shaft 8 drives the boom frame 9 to rotate, so that the boom frame 9 can hug the upper part of the straw, further assisting the guide assembly 2 to move the straw closer to the circular saw blade 3.

[0038] Reference Figure 6 The arm frame 9 includes an arm-holding portion 91 and a mounting portion 92. The mounting portion 92 extends radially toward the arm shaft 8. Both ends of the arm-holding portion 91 are connected to the arm shaft 8 through the mounting portion 92. The arm-holding portion 91 is V-shaped or U-shaped.

[0039] It is understood that when the gathering portion 91 rotates to its highest point, it is generally above the top of the straw, and when it rotates to its lowest point, it is generally below the top of the straw. When the vehicle frame 1 moves forward, the gathering portion 91 first rotates around the front of the straw and then pushes the straw backward. Combined with the shape of the gathering portion 91, the scattered straw is further quickly gathered and brought closer to the circular saw blade 3.

[0040] Reference Figure 5 In some embodiments of the present invention, a pair of rollers 4 rotate in opposite directions, and a squeezing plate 10 is installed circumferentially on the rollers 4. The squeezing plates 10 of the pair of rollers 4 correspond one to one to achieve the effect of squeezing the straw. The squeezing plates 10 have teeth 11 to further enhance the squeezing effect. The center of the circular saw blade 3 is rotatably connected to the frame 1 through a vertical rotating shaft, so that the cutting plane of the circular saw blade 3 is perpendicular to the straw. The rollers 4 can also continue to transport the cut straw backward.

[0041] Reference Figure 3 and Figure 4Crops are usually planted in rows. In order to improve the harvesting efficiency, the circular saw blades 3 can be arranged in multiple groups at intervals horizontally, and each group of circular saw blades 3 corresponds to each row of straw. The rollers 4 are correspondingly arranged in multiple pairs at intervals horizontally. The frame 1 is rotatably installed with a pair of output rollers 12 for outputting the straw. A feeding channel 13 for conveying the straw is formed between the pair of output rollers 12 and each pair of rollers 4, and a spiral push rod 14 is respectively installed in some of the feeding channels 13.

[0042] In some embodiments of the present invention, the circular saw blades 3 can be arranged in three groups horizontally at intervals, wherein the output roller 12 is located directly behind the middle circular saw blade 3, and the straw cut by the middle circular saw blade 3 is transported backward by the roller 4 to the feeding channel 13, and further enters the output roller 12; spiral push rods 14 are installed in the feeding channels 13 on both sides, and the spiral directions of the two spiral push rods 14 are opposite, and the straw cut by the circular saw blades 3 on both sides is transported backward by the roller 4 to the feeding channel 13, and then transported toward the output roller 12 by the spiral push rod 14, and finally, the output roller 12 transports the cut straw to the feed port 53 of the crushing bin 51.

[0043] Specifically, a pair of output rollers 12 rotate in opposite directions, and the output rollers 12 are circumferentially installed with extrusion plates 10. The extrusion plates 10 of the pair of output rollers 12 correspond one to one to achieve the effect of squeezing the straw. The extrusion plates 10 are provided with teeth 11 to further enhance the squeezing effect, so that the straw is output from the harvesting part and enters the crushing device for processing.

[0044] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. A straw harvester and crusher, characterized in that: include: Frame; A guide assembly is mounted on the vehicle frame, the guide assembly includes two guide rods for gathering scattered straw together, the vehicle frame is horizontally rotatable above the guide assembly and is connected to a boom shaft, the boom shaft is circumferentially mounted with a boom frame, the boom frame can gather the upper part of the straw, the boom frame includes a gathering portion and a mounting portion, the mounting portion extends radially toward the boom shaft, both ends of the gathering portion are connected to the boom shaft via the mounting portion, and the gathering portion is V-shaped or U-shaped; A circular saw blade and a roller, wherein the circular saw blade is rotatably mounted on the frame and is used for cutting the roots of the straw, the two guide rods gradually shrink from an end away from the circular saw blade to an end close to the circular saw blade, the frame is vertically rotatable above the circular saw blade to connect a pair of rollers, a pair of rollers can squeeze each other and transport the straw, the circular saw blades are horizontally spaced in multiple groups, and the rollers are correspondingly horizontally spaced in multiple pairs, a pair of output rollers for outputting the straw are rotatably mounted on the frame, a feeding channel for transporting the straw is formed between a pair of the output rollers and each pair of the rollers, screw push rods are installed in the feeding channels on both sides, and the spiral directions of the two screw push rods are opposite; The pulverizing device includes a pulverizing chamber and a rotating disk rotatably mounted in the pulverizing chamber, the pulverizing chamber having an inlet for inputting straw and an outlet for outputting pulverized straw, the rotating disk being circumferentially mounted with a plurality of blades and a plurality of wind blades, the tips of the blades being closer to the inlet than the tips of the wind blades in the axial direction of the rotating disk; When the vehicle frame moves forward, the gathering portion first rotates to the front of the straw and then pushes the straw backward, so that the scattered straw is quickly gathered and moved closer to the circular saw blade.

2. The straw harvester and crusher according to claim 1, characterized in that: The wind blades extend in the radial direction and the axial direction of the rotating disk.

3. The straw harvester and crusher according to claim 1, characterized in that: It also includes a guide tube and a recovery bin, wherein the recovery bin is mounted on the vehicle frame, one end of the guide tube is connected to the discharge port, and the other end extends into the recovery bin or extends above the recovery bin.

4. The straw harvester and crusher according to claim 1, characterized in that: The rotation directions of the pair of rollers are opposite. The rollers are provided with extrusion plates along the circumference. The extrusion plates of the pair of rollers correspond to each other one by one and are provided with teeth.

5. The straw harvester and crusher according to claim 1, characterized in that: The center of the circular saw blade is rotatably connected to the frame via a vertical rotating shaft.

6. The straw harvester and crusher according to any one of claims 1 to 5, characterized in that: The rotation directions of the pair of output rollers are opposite. The output rollers are provided with extrusion plates along the circumferential direction. The extrusion plates of the pair of output rollers correspond to each other one by one and are provided with teeth.

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