CN220528649U - Single longitudinal axial flow threshing and separating roller and harvester - Google Patents
Single longitudinal axial flow threshing and separating roller and harvester Download PDFInfo
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- CN220528649U CN220528649U CN202321622939.2U CN202321622939U CN220528649U CN 220528649 U CN220528649 U CN 220528649U CN 202321622939 U CN202321622939 U CN 202321622939U CN 220528649 U CN220528649 U CN 220528649U
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Abstract
The utility model provides a single-longitudinal axial flow threshing and separating roller and a harvester, wherein the single-longitudinal axial flow threshing and separating roller comprises a roller body, a roller body and a conical end part, and the conical end part is arranged at one end of the roller body; the feeding part comprises at least three spiral blades, and the at least three spiral blades are detachably arranged on the outer peripheral side of the conical end part; the threshing separation part comprises a threshing thread rod group and a separation nail group, wherein the separation nail group is arranged on the outer peripheral side of the cylinder body, and the threshing thread rod group is spirally arranged between the spiral blade and the separation nail group. The single longitudinal axial flow threshing and separating drum is designed by at least three spiral blades, so that grains are fed uniformly and smoothly when entering a drum threshing area, and the blocking risk is reduced; the threshing grain rod groups are connected with the spiral blades to form spiral arrangement, so that the feeding length and quantity are shortened, threshing and separating work of grains is efficiently completed, the grain breaking rate and the threshing rate are reduced, the harvesting effect is improved, and the working efficiency of the machine is improved.
Description
Technical Field
The application relates to the field of agricultural machinery equipment, in particular to a threshing and separating roller with a single longitudinal axial flow and a harvester.
Background
Threshing and separating of grains is one of the core components of grain harvesting machinery, which directly affects the performance of the whole machine and the normal operation of other components. The threshing and separating device can be divided into tangential flow type and axial flow type according to the flow direction of crops along the threshing cylinder. The most widely used single longitudinal axis flow threshing device in grain harvesting at present mainly comprises a guide cover, a single longitudinal axis flow threshing cylinder, a concave plate and other parts. Under the synergistic effect of the spiral blades at the front end of the roller and the air guide cover, the grain ears and the grain straws are rolled into the threshing area of the roller. Under the combined action of the threshing element and the concave plate, the grains realize threshing separation. The threshing and separating device has decisive effect on the breaking rate and the unhairing rate of the harvested cereal grains. Along with the continuous improvement of the mechanized level of grain harvest, the crop variety is continuously improved, and the single yield of the grains is continuously increased, so that the working effect of the threshing separation device in the grain harvest and the threshing quality requirement are correspondingly improved.
The traditional spiral blades mostly adopt two blades, and as the feeding quantity is increased, the blockage of a threshing area of a roller caused by uneven feeding and unsmooth feeding often occurs, so that the breakage rate of seeds is too high; conventional helical blades are typically welded to the drum and are inconvenient to disassemble and replace once damaged; the traditional spiral blade and threshing bars are respectively arranged on two sections of the cone barrel, the feeding threshing section is too long, the number of threshing bars is too large, and the manufacturing difficulty and the cost are increased.
Therefore, there is a need to design a single longitudinal axial flow threshing separation cylinder to solve the above problems.
Disclosure of Invention
In view of the above, in order to overcome the defects of the prior art, the utility model provides a threshing and separating roller with a single longitudinal axial flow and a harvester, which effectively solve the problems of uneven feeding, overhigh grain breakage rate, inconvenient disassembly and replacement and increased manufacturing difficulty and cost of the traditional threshing and separating roller.
According to a first aspect of the present utility model there is provided a single longitudinal axis flow threshing and separating drum, wherein the single longitudinal axis flow threshing and separating drum comprises a drum body comprising a drum body and a tapered end portion, the tapered end portion being provided at one end of the drum body; the feeding part comprises at least three spiral blades, and at least three spiral blades are detachably arranged on the outer peripheral side of the conical end part; the threshing separation part comprises a threshing rasp bar group and a separation nail group, wherein the separation nail group is arranged on the outer peripheral side of the cylinder body, and the threshing rasp bar group is spirally arranged between the spiral blade and the separation nail group.
Preferably, the feeding part further comprises a support shaft and a blade fixing seat, wherein the support shaft is arranged at one end of the conical end part far away from the cylinder body; the blade fixing seat is arranged on the outer peripheral side of the conical end part; the first end of the spiral blade is detachably connected to the supporting shaft, and the middle of the spiral blade is detachably connected to the blade fixing seat.
Preferably, the threshing bar group comprises at least three first threshing bars, at least three second threshing bars and a plurality of third threshing bars, the number of the at least three first threshing bars is the same as that of the at least three spiral blades and is arranged in a one-to-one correspondence manner, and the second ends of the spiral blades are detachably connected with the first threshing bars; at least three first threshing bars and at least three second threshing bars are detachably and spirally arranged on the outer peripheral side of the tapered end part; the plurality of third threshing bars are detachably and spirally arranged on the outer circumferential side of the cylinder body.
Preferably, the separation nail group includes a plurality of separation nail rows, each of the separation nail rows includes a plurality of separation nail teeth, the plurality of separation nail teeth are arranged in a row and detachably provided at the outer circumferential side of the cartridge body, and each of the separation nail rows is alternately provided at the outer circumferential side of the cartridge body.
Preferably, the plurality of third threshing bars are arranged at one end of the cylinder body close to the conical end, and the separation nail group is arranged between the plurality of third threshing bars and one end of the cylinder body far away from the conical end.
Preferably, the first threshing bar is formed into a first arc, the radian of the first arc corresponds to the radian of the periphery of the conical end part, two ends of the first arc form a first threaded connection part, and the first threshing bar is detachably connected with the conical end part through the first threaded connection part; the top surface of the first threshing grain rod is provided with a first threshing grain surface, and the first threshing grain surface is provided with a plurality of protrusions which are arranged at intervals and used for threshing; reinforcing ribs are arranged on two sides of the first end of the first threshing grain rod and are connected with the first threshing grain surface and the first threaded connecting part; the second end of the first threshing bar extends upwards to form a blade connecting part, and the first threshing bar is detachably connected with the spiral blade through the blade connecting part.
Preferably, the second threshing bar is formed into a second arc, the radian of the second arc corresponds to the radian of the periphery of the conical end part, two ends of the second arc form a second threaded connection part, and the second threshing bar is detachably connected with the conical end part through the second threaded connection part; the top surface of the second threshing grain rod is provided with a second threshing grain surface, and the second threshing grain surface is provided with a plurality of protrusions which are arranged at intervals and used for threshing; reinforcing ribs are arranged on two sides of the first end of the second threshing grain rod and are connected with the second threshing grain surface and the second threaded connecting part; the third threshing rasp bar is formed into a third arc, the radian of the third arc corresponds to the radian of the periphery of the barrel body, the two ends of the third arc form a third threaded connection part, and the third threshing rasp bar is detachably connected with the barrel body through the third threaded connection part; the top surface of the third threshing grain rod is provided with a third threshing grain surface, and the third threshing grain surface is provided with a plurality of protrusions which are arranged at intervals and used for threshing; reinforcing ribs are arranged on two sides of the first end of the third threshing grain rod and are connected with the third threshing grain surface and the third threaded connecting portion.
Preferably, the threshing bar group is hollow, and the threshing bar group and the separation nail group are detachably arranged on the outer circumferential side of the roller body; the threshing grain rod group and the separation nail group are provided with boss protection parts at the connection parts of the roller body.
Preferably, the end of the cylinder body away from the conical end is provided with a transmission damper and a cleaning knife, and the transmission damper is detachably arranged on the cylinder body; the cleaning knife is arranged on the outer peripheral side of the transmission shock absorber.
According to a second aspect of the present utility model there is provided a harvester, wherein the harvester comprises a single longitudinal axial flow threshing separation drum as described above.
The threshing and separating roller with single longitudinal axial flow is suitable for a harvester with large feeding quantity to finish threshing and separating of grains. By the design of at least three spiral blades, grains are fed more uniformly when entering a threshing area of the roller, the feeding is smoother, and the blocking risk is reduced; the threshing grain rod groups are connected with the spiral blades to form spiral arrangement, so that the feeding length is shortened, the number of the threshing grain rod groups is reduced, and the ideal threshing effect is met. The grains are gradually contacted with three threshing bars in sequence in the spiral feeding direction, so that efficient threshing is realized; and the threshing separation cylinder with single longitudinal axial flow can efficiently finish threshing separation work of grains, reduce grain breakage rate and un-threshing rate, improve harvesting effect and improve working efficiency of the machine.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic structural view of a single longitudinal axial flow threshing separation cylinder according to an embodiment of the utility model;
fig. 2 shows a schematic structural view of the front end of a single longitudinal axial flow threshing separation cylinder according to an embodiment of the utility model;
fig. 3 shows a schematic structural view of the rear end of a single longitudinal axial flow threshing separation cylinder according to an embodiment of the utility model;
FIG. 4 shows a cross-sectional view of a roller body according to an embodiment of the utility model;
fig. 5 shows a schematic structural view of a first threshing bar according to an embodiment of the utility model;
fig. 6 shows a schematic structural view of a second threshing bar according to an embodiment of the utility model;
fig. 7 shows a schematic structural view of a third threshing bar according to an embodiment of the utility model;
fig. 8 shows a schematic structural view of a separation spike according to an embodiment of the present utility model.
Reference numerals: 1-a support shaft; 2-front end maintenance holes; 3-helical blades; 4-a blade fixing seat; 5-a first threshing rasp bar; 6-a second threshing rasp bar; 7-a third threshing rasp bar; 8-separating the spike teeth; 9-a barrel body; 10-a rear end maintenance hole; 11-a second end; 12-a first fixing bolt; 13-a rear sealing plate; 14-a transmission damper; 15-a cleaning knife; 16-a second fixing bolt; 17-a front mounting plate; 18-a first inner web; 19-a second inner web; 20-a third inner web; 21-an inner shaft tube; 22-hub; 23-a cylinder reinforcing plate; 24-rear mounting plate.
Detailed Description
The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, apparatus, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatuses, and/or systems described herein will be apparent after an understanding of the present disclosure. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but rather, obvious variations may be made upon an understanding of the present disclosure, other than operations that must occur in a specific order. In addition, descriptions of features known in the art may be omitted for the sake of clarity and conciseness.
The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided solely to illustrate some of the many possible ways of implementing the methods, devices, and/or systems described herein that will be apparent after a review of the disclosure of the present application.
In the entire specification, when an element (such as a layer, region or substrate) is described as being "on", "connected to", "bonded to", "over" or "covering" another element, it may be directly "on", "connected to", "bonded to", "over" or "covering" another element or there may be one or more other elements interposed therebetween. In contrast, when an element is referred to as being "directly on," directly connected to, "or" directly coupled to, "another element, directly on," or "directly covering" the other element, there may be no other element intervening therebetween.
As used herein, the term "and/or" includes any one of the listed items of interest and any combination of any two or more.
Although terms such as "first," "second," and "third" may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first member, component, region, layer or section discussed in examples described herein could also be termed a second member, component, region, layer or section without departing from the teachings of the examples.
For ease of description, spatially relative terms such as "above … …," "upper," "below … …," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "upper" relative to another element would then be oriented "below" or "lower" relative to the other element. Thus, the term "above … …" includes both orientations "above … …" and "below … …" depending on the spatial orientation of the device. The device may also be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. Singular forms also are intended to include plural forms unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" are intended to specify the presence of stated features, integers, operations, elements, and/or groups thereof, but do not preclude the presence or addition of one or more other features, integers, operations, elements, and/or groups thereof.
Variations from the shapes of the illustrations as a result, of manufacturing techniques and/or tolerances, are to be expected. Accordingly, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shapes that occur during manufacture.
The features of the examples described herein may be combined in various ways that will be apparent after an understanding of the disclosure of the present application. Further, while the examples described herein have a variety of configurations, other configurations are possible as will be apparent after an understanding of the present disclosure.
According to a first aspect of the present utility model, there is provided a single longitudinal axial flow threshing and separating drum, as shown in fig. 1 to 8, which is suitable for a large-feed harvester to accomplish threshing and separating of grains, reduce the breakage rate and the unhairing rate of grains, and greatly improve the harvesting effect, and which comprises a drum body, a feeding portion and a threshing and separating portion.
In the following description, detailed structures of the drum body, the feeding section, and the threshing separation section of the single longitudinal axis flow threshing separation drum will be specifically described with reference to fig. 1 to 8.
As shown in fig. 1 to 8, in an embodiment, the roller body comprises a body 9 and a tapered end. Specifically, one end of the drum body 9 is formed as a tapered end, i.e., a front end, and the other end of the drum body 9 is formed as a rear end, where the front-rear refers to the left-right direction as shown in fig. 1, i.e., the moving direction of the grains. The feeding part and a part of threshing part are arranged at the front end of the roller body, and the other part of threshing separation part is arranged at the rear end of the roller body. Specifically, the feeding portion may include at least three spiral blades 3, and three spiral blades 3 are selected in the embodiment, but not limited thereto, and may be, for example, four, five or more, and may be specifically selected according to the use requirement and the overall size of the apparatus. In the description of the embodiment, the number of the helical blades 3 is three. At least three helical blade 3 detachably sets up in the periphery side of toper tip, through designing helical blade 3 and toper tip into detachable connected mode, the follow-up maintenance of being convenient for, change and dismantlement, feeding when a plurality of helical blade 3's setting can make cereal get into this single vertical axis flow threshing separation cylinder simultaneously is more even, and feeding is more smooth and easy, reduces the jam risk. The threshing separation part can comprise a threshing rasp bar group and a separation nail group, wherein the separation nail group is arranged on the outer peripheral side of the cylinder body, the separation nail group is arranged close to the rear end of the cylinder body, and the threshing rasp bar group is arranged between the spiral blade 3 and the separation nail group. So, cereal gets into the barrel through the helical blade 3 of feeding portion earlier, and threshing the grain through threshing the grain pole group and separating nail group again, because threshing the grain pole group partly set up in the toper tip, another part sets up in barrel body 9, has shortened the length of feeding threshing section, has reduced the quantity of threshing the grain pole group, has reduced manufacturing degree of difficulty and cost.
Preferably, as shown in fig. 1 to 8, in the embodiment, the feeding portion further includes a support shaft 1 and a blade fixing base 4, the support shaft 1 is disposed on an end face of the front mounting plate 17 (i.e., an end of the tapered end portion away from the barrel body 9); the blade fixing seat 4 is arranged on the outer peripheral side of the conical end part; the support shaft 1 is detachably connected with the end face of the front mounting plate 17 through a first fixing bolt 12, the support shaft 1 plays a role in supporting the roller body and fixing the helical blades 3 and drives the roller body to rotate, one end of the blade fixing seat 4 is welded with the conical end part, and the other end of the blade fixing seat extends upwards and is provided with an opening; the first end of helical blade 3 detachably sets up in back shaft 1, and helical blade 3's middle part detachably sets up in blade fixing base 4. The first end of the helical blade 3 is provided with an opening cooperating with the opening of the support shaft 1, which two openings can be detachably connected by using a fastening bolt, and the middle part of the helical blade 3 is provided with an opening cooperating with the opening of the blade holder 4, which two openings can be detachably connected by using a fastening bolt.
Preferably, as shown in fig. 1 to 8, in the embodiment, the threshing bar group includes at least three first threshing bars 5, at least three second threshing bars 6, and a plurality of third threshing bars 7, the number of the at least three first threshing bars 5 is the same as the number of the at least three helical blades 3 and is arranged in a one-to-one correspondence, and the second ends of the helical blades 3 are detachably arranged on the first threshing bars 5 in such a manner that fastening bolts are used; at least three first threshing bars 5 and at least three second threshing bars 6 are detachably and spirally provided on the outer peripheral side of the tapered end portion; the first threshing rasp bar 5 plays a role of fixing the helical blade 3, and simultaneously plays a role of threshing grains, grains are fed through the helical blade 3 and then pass through the first threshing rasp bar 5 to be transited to the second threshing rasp bar 6, and the first threshing rasp bar 5 and the second threshing rasp bar 6 are arranged on the peripheral side of the conical end part, so that the length of the feeding threshing section is shortened. In the embodiment, the number of the first threshing bars 5 and the second threshing bars 6 is three, so as to correspond to the number of the spiral blades 3. The plurality of third threshing bars 7 are detachably and spirally arranged on the outer peripheral side of the cylinder body 9, in an embodiment, the number of the third threshing bars 7 may be nine, wherein each three third threshing bars 7 are one group, three groups are respectively spirally arranged on the outer peripheral side of the cylinder body 9, and in addition, when the three threshing bars are arranged, the spiral shape of each group of the third threshing bars 7 is matched with the spiral shape formed by the spiral blade 3, the first threshing bars 5 and the second threshing bars 6, and the matching means that the four groups are arranged in a spiral line.
Preferably, as shown in fig. 1 to 8, in the embodiment, the separation staple group includes a plurality of separation staple rows, each of which includes a plurality of separation staple teeth 8, which are arranged in a row and detachably provided on the outer circumferential side of the cartridge body 9, and each of which is provided alternately on the outer circumferential side of the cartridge body 9. Specifically, in an embodiment, each of the separation teeth rows may include four separation teeth 8, while including six separation teeth rows, and the six separation teeth rows are disposed alternately, that is, a gap between two adjacent separation teeth 8 of one separation teeth row is provided with the separation teeth 8 of the adjacent separation teeth row. Further, the separation spike 8 may be detachably provided on the outer peripheral side of the cartridge body 9 by means of a bolt.
Preferably, as shown in fig. 1 to 8, in the embodiment, the plurality of third threshing bars 7 are provided at one end of the drum body 9 near the tapered end, and the separation nail group is provided between the plurality of third threshing bars 7 to one end of the drum body 9 far from the tapered end. Here, the outer peripheral sides of the drum body 9, on which the threshing bar group is not mounted, are all required to be provided with separation nail groups to ensure the threshing effect of the grains and promote threshing efficiency.
Preferably, as shown in fig. 5, in the embodiment, the first threshing bar 5 is formed in a first arc shape, and the radian of the first arc shape corresponds to the radian of the outer circumference of the conical end part, so that the installation is convenient; the two ends of the first arc form a first threaded connection part, and the first threshing bar 5 is detachably connected with the conical end part through the first threaded connection part; the top surface of the first threshing bar 5 is provided with a first threshing surface, and the first threshing surface is provided with a plurality of protrusions which are arranged at intervals and used for threshing; the two sides of the first end of the first threshing grain rod 5 are provided with reinforcing ribs which are connected with the first threshing grain surface and the first threaded connecting part; the second end of the first threshing bar 5 extends upwards to form a blade connecting part, the first threshing bar 5 is detachably connected with the spiral blade through the blade connecting part, and the detachable connection mode can be fastening bolts.
Preferably, as shown in fig. 6 and 7, in the embodiment, the second threshing bar 6 is formed in a second arc shape, and the radian of the second arc shape corresponds to the radian of the outer circumference of the conical end part, so that the installation is convenient; two ends of the second arc form a second threaded connection part, and the second threshing bar 6 is detachably connected with the conical end part through the second threaded connection part; the top surface of the second threshing grain rod 6 is provided with a second threshing grain surface, and the second threshing grain surface is provided with a plurality of bulges which are arranged at intervals and used for threshing; the two sides of the first end of the second threshing grain rod 6 are provided with reinforcing ribs which are connected with the second threshing grain surface and the second threaded connecting part;
the third threshing bar 7 is formed into a third arc, and the radian of the third arc corresponds to the radian of the periphery of the cylinder body, so that the threshing bar is convenient to install; the two ends of the third arc form a third threaded connection part, and the third threshing bar 7 is detachably connected with the cylinder body through the third threaded connection part; the top surface of the third threshing bar 7 is provided with a third threshing surface, and the third threshing surface is provided with a plurality of protrusions which are arranged at intervals and used for threshing; the two sides of the first end of the third threshing grain rod 7 are provided with reinforcing ribs which are connected with the third threshing grain surface and the third threaded connecting part.
Preferably, as shown in fig. 5 to 7, in the embodiment, the threshing bar group is hollow inside, satisfying a lightweight design. Specifically, adopt hollow design between threshing grain pole group and the contact surface of barrel to the top surface, can satisfy the atress that alleviates the contact surface to the maximum extent, in addition hollow design need guarantee with the safe distance of both sides stiffening rib, the intensity of whole threshing grain pole group can be supported to the distance of both sides stiffening rib. The reason of the internal hollow structural design is that on one hand, because the three threshing bars are connected by adopting a fixed bolt, gaps exist when the three threshing bars are connected with the roller body, and a large amount of air enters the cavity along the gaps when the roller body rotates at high speed, the internal pressure is overlarge, and the surface of a pressed object is easy to sink and even be damaged; on the other hand, impurities entering the cavity can be discharged.
Preferably, as shown in fig. 8, in the embodiment, the separation nail group is detachably provided at the outer circumferential side of the drum body, and the detachable connection manner may be the use of a fastening bolt; the separation spike 8 is also provided with two threaded connection parts, and is detachably connected with the roller body through the two threaded connection parts, and the top surface of the separation spike 8 protrudes upwards to form a bulge for separating grains. Under the action of the threshing grain rod group, seeds on the grain ears are removed, and a large amount of seeds and short grain straws fall into a cleaning device for cleaning and separation while the grain seeds and the short grain straws are conveyed backwards. Grains and unhashed grains mixed in the long grains straw enter a separation nail group, and under the action of the separation nail group, the separated grains and impurities fall into a cleaning device to be cleaned and separated.
Preferably, as shown in fig. 5 to 8, in the embodiment, the positions of the threshing bar group and the separating pin group, which are connected with the roller body, are provided with boss protecting parts, namely protecting parts are formed at the end parts of the threshing bar group and the separating pin group, which are provided with threaded holes, so that the heads of the fastening bolts can be placed in the protecting parts to prevent the heads of the bolts from damaging the ears.
Preferably, as shown in fig. 3, in the embodiment, the end of the cylinder body 9 away from the tapered end is provided with a transmission damper 14 and a cleaning blade 15, the transmission damper 14 being detachably provided to the cylinder body 9; the cleaning blade 15 is provided on the outer peripheral side of the transmission damper 14. Specifically, the transmission damper 14 is fixed on the rear mounting plate 24 through the second fixing bolt 16, the cleaning knife 15 is welded on the rear sealing plate 13, the rear section of the drum body is prevented from being wound by weeds and the like, and substances such as long grains and straws from the threshing separation zone can be discharged out of the machine body through the rear second end 11.
Preferably, as shown in fig. 4, in an embodiment, the drum body may further comprise a front mounting plate 17 for mounting the support shaft 1 and the helical blades 3; a first inner web 18, a second inner web 19, a third inner web 20, an inner shaft tube 21, a hub 22, and a barrel reinforcement plate 23. The first inner web 18 and the second inner web 19 are both disposed inside the tapered end portion, and the third inner web 20, the hub 22 and the tube reinforcement plate 23 are disposed inside the tube body 9, with the inner tube 21 penetrating the tube body.
Preferably, as shown in fig. 1, in an embodiment, the drum body may further include a front-end service hole 2 and a rear-end service hole 10, and the front and rear ends of the drum body are serviced through the front-end service hole 2 and the rear-end service hole 10.
The threshing and separating roller with single longitudinal axial flow is suitable for a harvester with large feeding quantity to finish threshing and separating of grains. By the design of at least three spiral blades, grains are fed more uniformly when entering a threshing area of the roller, the feeding is smoother, and the blocking risk is reduced; the threshing grain rod groups are connected with the spiral blades to form spiral arrangement, so that the feeding length is shortened, the number of the threshing grain rod groups is reduced, and the ideal threshing effect is met; threshing grain is carried out step by step in a threshing area through threshing grain bars with three different structures. The grains are gradually contacted with three threshing bars in sequence in the spiral feeding direction, so that efficient threshing is realized; and the threshing separation roller with single longitudinal axial flow can efficiently finish threshing separation work of grains, reduce grain breakage rate and un-threshing rate, improve harvesting effect and improve working efficiency of the machine.
Furthermore, according to a second aspect of the present utility model there is provided a harvester comprising a single longitudinal axial flow threshing separation drum as described above.
Finally, it should be noted that: the foregoing examples are merely specific embodiments of the present application, and are not intended to limit the scope of the present application, but the present application is not limited thereto, and those skilled in the art will appreciate that while the foregoing examples are described in detail, the present application is not limited thereto. Any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or make equivalent substitutions for some of the technical features within the technical scope of the disclosure of the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A single longitudinal axis flow threshing separation cylinder, characterized in that the single longitudinal axis flow threshing separation cylinder comprises:
the roller body comprises a roller body and a conical end part, wherein the conical end part is arranged at one end of the roller body;
the feeding part comprises at least three spiral blades, and at least three spiral blades are detachably arranged on the outer peripheral side of the conical end part;
the threshing separation part comprises a threshing rasp bar group and a separation nail group, wherein the separation nail group is arranged on the outer peripheral side of the cylinder body, and the threshing rasp bar group is spirally arranged between the spiral blade and the separation nail group.
2. The single longitudinal axis flow threshing separation cylinder of claim 1, wherein the feeding portion further comprises a support shaft and a blade fixing seat, the support shaft being disposed at an end of the tapered end portion remote from the cylinder body; the blade fixing seat is arranged on the outer peripheral side of the conical end part;
the first end of the spiral blade is detachably connected to the supporting shaft, and the middle of the spiral blade is detachably connected to the blade fixing seat.
3. The single longitudinal axial flow threshing cylinder of claim 2, wherein said set of threshing bars includes at least three first threshing bars, at least three second threshing bars and a plurality of third threshing bars, the number of at least three first threshing bars being the same as and one to one correspondence to the number of at least three of said helical blades, the second ends of said helical blades being removably connected to said first threshing bars;
at least three first threshing bars and at least three second threshing bars are detachably and spirally arranged on the outer peripheral side of the tapered end part;
the plurality of third threshing bars are detachably and spirally arranged on the outer circumferential side of the cylinder body.
4. A single longitudinal axial flow threshing separation cylinder as claimed in claim 3, wherein said set of separation pins comprises a plurality of rows of separation pins, each of said rows of separation pins comprising a plurality of separation pins, a plurality of said separation pins being arranged in a row and detachably disposed on the outer peripheral side of said cylinder body, each row of said separation pins being staggered on the outer peripheral side of said cylinder body.
5. The single longitudinal axial flow threshing separation cylinder of claim 4, wherein a plurality of said third threshing bars are disposed at an end of said cylinder body near said tapered end, and said set of separation nails is disposed between a plurality of said third threshing bars to an end of said cylinder body remote from said tapered end.
6. The single longitudinal axial flow threshing cylinder of claim 3, wherein the first threshing rasp bar is formed in a first arc shape, the arc of which corresponds to the arc of the outer circumference of the tapered end portion, and both ends of the first arc shape are formed with a first screw connection portion through which the first threshing rasp bar is detachably connected with the tapered end portion;
the top surface of the first threshing grain rod is provided with a first threshing grain surface, and the first threshing grain surface is provided with a plurality of protrusions which are arranged at intervals and used for threshing;
reinforcing ribs are arranged on two sides of the first end of the first threshing grain rod and are connected with the first threshing grain surface and the first threaded connecting part;
the second end of the first threshing bar extends upwards to form a blade connecting part, and the first threshing bar is detachably connected with the spiral blade through the blade connecting part.
7. The single longitudinal axial flow threshing cylinder of claim 3, wherein the second threshing rasp bar is formed in a second arc shape, the arc of the second arc shape corresponds to the arc of the outer circumference of the tapered end portion, both ends of the second arc shape form a second threaded connection portion, and the second threshing rasp bar is detachably connected with the tapered end portion through the second threaded connection portion; the top surface of the second threshing grain rod is provided with a second threshing grain surface, and the second threshing grain surface is provided with a plurality of protrusions which are arranged at intervals and used for threshing; reinforcing ribs are arranged on two sides of the first end of the second threshing grain rod and are connected with the second threshing grain surface and the second threaded connecting part;
the third threshing rasp bar is formed into a third arc, the radian of the third arc corresponds to the radian of the periphery of the barrel body, the two ends of the third arc form a third threaded connection part, and the third threshing rasp bar is detachably connected with the barrel body through the third threaded connection part; the top surface of the third threshing grain rod is provided with a third threshing grain surface, and the third threshing grain surface is provided with a plurality of protrusions which are arranged at intervals and used for threshing; reinforcing ribs are arranged on two sides of the first end of the third threshing grain rod and are connected with the third threshing grain surface and the third threaded connecting portion.
8. The single longitudinal axial flow threshing and separating cylinder as recited in claim 1, wherein the threshing bar group is hollow inside, and the threshing bar group and the separating pin group are detachably provided on the outer peripheral side of the cylinder body;
the threshing grain rod group and the separation nail group are provided with boss protection parts at the connection parts of the roller body.
9. The single longitudinal axial flow threshing separation cylinder of claim 1, characterized in that the end of the cylinder body remote from the tapered end is provided with a transmission damper and a sweeping knife, the transmission damper being detachably arranged to the cylinder body;
the cleaning knife is arranged on the outer peripheral side of the transmission shock absorber.
10. A harvester comprising the single longitudinal axial flow threshing separation cylinder of any one of claims 1 to 9.
Priority Applications (1)
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CN202321622939.2U CN220528649U (en) | 2023-06-25 | 2023-06-25 | Single longitudinal axial flow threshing and separating roller and harvester |
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CN202321622939.2U CN220528649U (en) | 2023-06-25 | 2023-06-25 | Single longitudinal axial flow threshing and separating roller and harvester |
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