Auxiliary threshing device and harvester

Abstract

The utility model relates to the technical field of harvesters, in particular to an auxiliary threshing device and a harvester, the auxiliary threshing device comprises a first supporting component, a second supporting component and a plurality of comb tooth assemblies, and the comb tooth assemblies are arranged between the two supporting components and are sequentially arranged at intervals; the comb tooth assembly comprises a comb tooth supporting plate and a plurality of comb teeth, the comb tooth supporting plate is connected with the two supporting components, and the comb teeth are sequentially arranged on the comb tooth supporting plate; the projections of all the comb tooth assemblies coincide, and the projections of all the comb tooth assemblies are arranged according to an arc line. The radius of a distribution circle where the side, close to the roller, of the projection of the comb teeth in each comb tooth assembly is located is gradually reduced in the direction from the roots, close to the comb tooth supporting plate, of the comb teeth to the heads, away from the comb tooth supporting plate, of the comb teeth. Therefore, the warped heads of the comb teeth can continuously disturb the grains in the roller, the separation effect of the grains and the straws is improved, and the harvesting performance of the harvester is improved.

Description

Technical Field

[0001] The present application relates to the technical field of harvesters, and in particular to an auxiliary threshing device and a harvester. Background Art

[0002] At present, wheat harvesters include a threshing drum and a comb-tooth separation concave. The comb-tooth separation concave is arranged on the outer side of the threshing drum. As the threshing drum rotates, wheat and other grains are threshed. However, the comb teeth on the comb-tooth separation concave have a poor disturbance effect on the grains in the drum, which leads to poor separation of grains and straw, seriously affecting the harvesting performance of the entire machine. Utility Model Content

[0003] The purpose of this application is to provide an auxiliary threshing device and a harvester, which to a certain extent solves the technical problem in the prior art that the comb teeth on the comb-tooth separation concave plate of the wheat harvester have a poor disturbing effect on the grains in the drum, which in turn leads to poor separation of grains and straw, seriously affecting the harvesting performance of the entire machine.

[0004] The present application provides an auxiliary threshing device, comprising: a first supporting member, a second supporting member, and a plurality of comb tooth assemblies; wherein the first supporting member and the second supporting member are sequentially spaced along a first preset direction, and the plurality of comb tooth assemblies are arranged between the first supporting member and the second supporting member and sequentially spaced along a second preset direction;

[0005] The comb tooth assembly includes a comb tooth support plate and a plurality of comb teeth, wherein the comb tooth support plate is connected to the first supporting member and the second supporting member respectively, and the plurality of comb teeth are sequentially arranged on the comb tooth support plate along the first preset direction; along the second preset direction, the projections of each group of the comb tooth assemblies overlap, and the projections of all the comb tooth assemblies are arranged along the first preset direction in an arc line;

[0006] Along the direction from the root of the comb teeth close to the comb tooth support plate toward the head thereof away from the comb tooth support plate, the radius of the distribution circle of the projection of the comb teeth in each group of the comb tooth assembly on the side close to the drum gradually decreases, so that the head of the comb teeth is tilted toward the drum side.

[0007] In the above technical solution, further, along the first preset direction, multiple comb tooth assemblies arranged in sequence are divided into an inner comb tooth assembly, a middle comb tooth assembly and an outer comb tooth assembly, and wherein the middle comb tooth assembly is arranged close to the horizontal plane relative to the inner comb tooth assembly and the outer comb tooth assembly.

[0008] In any of the above technical solutions, further, the comb tooth support plates of the inner comb tooth assembly are all arranged in a non-horizontal state.

[0009] In any of the above technical solutions, further, the comb tooth support plates of the middle and side comb tooth assemblies are all arranged in a vertical state or a nearly vertical state.

[0010] In any of the above technical solutions, further, the comb tooth support plates of the outer comb tooth assembly are arranged in a non-horizontal and non-vertical state.

[0011] In any of the above technical solutions, further, the first supporting member and the second supporting member each include three discontinuous supporting parts, and are respectively arranged corresponding to the inner comb tooth assembly, the middle comb tooth assembly and the outer comb tooth assembly, and are connected to each other; two adjacent comb tooth support plates of any two adjacent ones of the inner comb tooth assembly, the middle comb tooth assembly and the outer comb tooth assembly are detachably connected by a fastening member.

[0012] In any of the above technical solutions, further, the minimum distance between any two adjacent comb teeth in each group of the comb tooth assembly is a, and 15mm≤a≤16mm.

[0013] In any of the above technical solutions, further, the minimum distance between the comb tooth support plate of one group of the comb tooth assemblies in two adjacent groups of the comb tooth assemblies and the adjacent comb teeth in the other group of the comb tooth assemblies is b, and 10mm≤b≤112mm.

[0014] In any of the above technical solutions, further, along the second preset direction, the projection of each group of the comb tooth assemblies is L-shaped.

[0015] In any of the above technical solutions, further, the comb teeth and the comb tooth support plate are an integrated structure.

[0016] In any of the above technical solutions, further, the first supporting member and the second supporting member are both arc-shaped plates.

[0017] In any of the above technical solutions, further, the auxiliary threshing device also includes a third supporting member; wherein, along the first preset direction, the third supporting member is provided at at least one end of the first supporting member and the second supporting member, and the third supporting member is respectively connected to the two.

[0018] The present application also provides a harvester comprising the auxiliary threshing device described in any of the above technical solutions, and thus having all the beneficial technical effects of the auxiliary threshing device, which will not be described in detail here.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] In the auxiliary threshing device provided in the present application, the distribution circle radius of the head position of the comb brush is ensured to be smaller than the distribution circle radius of the root position of the comb brush, so that the head of the comb brush is tilted, and then with the rotating drum, the tilted head of the comb teeth can continuously disturb the grains in the drum, making it easier to separate the grains and straw residues in the material flow, thereby improving the separation effect of grains and straw, and improving the harvesting performance of the harvester. Moreover, since the tilted head of the comb teeth can continuously disturb the grains in the drum, it can also effectively avoid material accumulation, further improving the working efficiency and separation effect of the harvester. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 A schematic structural diagram of an auxiliary threshing device provided in an embodiment of the present application;

[0023] Figure 2 Another structural schematic diagram of the auxiliary threshing device provided in an embodiment of the present application;

[0024] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A.

[0025] Reference numerals:

[0026] 1-first supporting member, 11-supporting part, 2-second supporting member, 3-comb tooth assembly, 31-comb tooth supporting plate, 32-comb teeth, 321-head, 322-root, 323-inside, 4-inside comb tooth assembly, 5-middle comb tooth assembly, 6-outside comb tooth assembly, 7-third supporting member, 8-fastening member. DETAILED DESCRIPTION

[0027] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0028] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0029] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0030] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0032] Refer to the following Figures 1 to 3 The auxiliary threshing device and harvester according to some embodiments of the present application are described.

[0033] Example 1

[0034] See also Figures 1 to 3 As shown, an embodiment of the present application provides an auxiliary threshing device, comprising: a first supporting member 1, a second supporting member 2, and a plurality of comb tooth assemblies 3; wherein the first supporting member 1 and the second supporting member 2 are sequentially spaced along a first preset direction, and the plurality of comb tooth assemblies 3 are disposed between the first supporting member 1 and the second supporting member 2 and sequentially spaced along a second preset direction;

[0035] The comb tooth assembly 3 includes a comb tooth support plate 31 and a plurality of comb teeth 32. The comb tooth support plate 31 is connected to the first support member 1 and the second support member 2 respectively. The plurality of comb teeth 32 are sequentially arranged on the comb tooth support plate 31 along a first preset direction. Along the second preset direction, the projections of each group of comb tooth assemblies 3 overlap, and the projections of all comb tooth assemblies 3 are arranged along the first preset direction in an arc.

[0036] Along the direction from the root 322 of the comb tooth 32 close to the comb tooth support plate 31 to the head 321 away from the comb tooth support plate 31, the radius of the distribution circle of the projection of the comb teeth 32 in each group of comb tooth assemblies 3 on the side close to the drum gradually decreases, so that the head 321 of the comb tooth 32 is tilted toward the drum side.

[0037] According to the structure described above, in the auxiliary threshing device provided by the present application, the radius of the distribution circle at the position of the head 321 of the comb brush is ensured to be smaller than the radius of the distribution circle at the position of the root 322 of the comb brush, so that the head 321 of the comb brush is tilted, and then with the rotating drum, the tilted head 321 of the comb teeth 32 can continuously disturb the grains in the drum, making it easier to separate the grains and straw residues in the material flow, that is, improving the separation effect of grains and straw, and improving the harvesting performance of the harvester. Moreover, since the tilted head 321 of the comb teeth 32 can continuously disturb the grains in the drum, it can also effectively avoid material accumulation, further improving the working efficiency and separation effect of the harvester.

[0038] It should be noted that the auxiliary threshing device is not limited to use on wheat harvesters, but can also be used on other types of harvesters, depending on actual needs.

[0039] also, Figure 2 Here r represents the radius of one of the distribution circles, which facilitates the understanding of the aforementioned distribution circle radius.

[0040] In this embodiment, preferably, Figure 2 As shown, along the first preset direction, multiple comb tooth assemblies 3 arranged in sequence are divided into an inner comb tooth assembly 4, a middle comb tooth assembly 5 and an outer comb tooth assembly 6, and the middle comb tooth assembly 5 is arranged close to the horizontal plane relative to the inner comb tooth assembly 4 and the outer comb tooth assembly 6, that is, the middle comb tooth assembly 5 is arranged according to an arc segment, and the angle between the tangent of this arc segment and the horizontal plane is smaller than the angle between the tangent of the arc segment corresponding to the inner comb tooth assembly 4 and the outer comb tooth assembly 6 and the horizontal plane.

[0041] Further, preferably, Figure 2 As shown, the comb tooth support plates 31 of the inner comb tooth assembly 4 are all arranged in a non-horizontal state.

[0042] According to the structure described above, the comb support plate 31 forms an angle with the horizontal plane, that is, it is inclined relative to the horizontal plane, which can push the grains and straw debris from the inner side 323 of the drum to the outside, and the straw debris will not accumulate on the horizontal support plate.

[0043] Further, preferably, Figure 2 As shown, the comb tooth support plates 31 of the middle comb tooth assembly 5 are all arranged in a vertical state or a nearly vertical state.

[0044] According to the structure described above, it is known that the comb tooth support plates 31 of the middle and side comb tooth assemblies 5 are all set in a vertical state or a nearly vertical state, so as not to block the falling of grains and straw residues, thereby ensuring the threshing effect.

[0045] Furthermore, preferably, the comb tooth support plates 31 of the middle comb tooth assembly 5 are all arranged in a nearly vertical state, and the angle between the comb tooth support plates 31 and the vertical direction can be selected within the range of 0-10°, of course, it is not limited thereto.

[0046] Further, preferably, Figure 2 As shown, the comb tooth support plates 31 of the outer comb tooth assembly 6 are all arranged in a non-horizontal and non-vertical state.

[0047] According to the structure described above, the comb tooth support plate 31 is arranged in an inclined shape, that is, the outer comb teeth 32 can be effectively prevented from being arranged horizontally or vertically. This arrangement can push the grains and straw debris from the inner side 323 of the drum to the outside during the operation of the harvester. The straw debris will neither accumulate on the horizontal support plate nor affect the separation effect due to the vertical support plate hindering the grain from falling.

[0048] In this embodiment, preferably, Figure 1 and Figure 2 As shown, the first support member 1 and the second support member 2 each include three discontinuous support portions 11, which are respectively arranged corresponding to the inner comb tooth assembly 4, the middle comb tooth assembly 5 and the outer comb tooth assembly 6, and are connected to each other; two adjacent comb tooth support plates 31 of any two adjacent ones of the inner comb tooth assembly 4, the middle comb tooth assembly 5 and the outer comb tooth assembly 6 are detachably connected by a fastening member 8 such as a bolt.

[0049] According to the structure described above, the device is divided into three areas, which can then be processed separately as required. After processing and manufacturing, they can be assembled together to improve the convenience of processing and manufacturing. Moreover, when one part is damaged, it can be disassembled separately for maintenance, and the other structures can continue to be used.

[0050] It should be noted that: it is not limited to the above-mentioned three-section detachable structure, and a non-detachable structure can also be adopted, that is, the first support member 1 and the second support member 2 do not include three intermittent support parts 11, both are integrated structures, and there is no need to be equipped with the aforementioned fastening member 8, etc.

[0051] In this embodiment, preferably, Figures 1 to 3 As shown, the minimum distance between any two adjacent comb teeth 32 in each group of comb teeth assembly 3 is a, and 15mm≤a≤16mm.

[0052] According to the structure described above, if the value of a is too small, it will be unfavorable for threshing large-grain crops and will easily cause material pushing and clogging. If the value of a is too large, straw will be mixed into the grains. Therefore, the minimum distance a between any two adjacent comb teeth 32 in each group of comb teeth assembly is within the range of 15mm-16mm.

[0053] In this embodiment, preferably, Figures 1 to 3 As shown, the minimum distance between the comb tooth support plate 31 of one comb tooth assembly 3 and the adjacent comb teeth 32 of the other comb tooth assembly 3 in two adjacent groups of comb tooth assemblies 3 is b, and 10 mm ≤ b ≤ 11 mm.

[0054] According to the structure described above, if the value of b is too small, it will be unfavorable for threshing large-grain crops and will easily cause material pushing and clogging. If the value of b is too large, straw will be mixed into the grains. Therefore, the minimum distance b between any two adjacent comb teeth in each group of comb teeth assembly is within the range of 10mm-11mm.

[0055] In this embodiment, preferably, Figures 1 to 3 As shown, the comb teeth 32 and the comb tooth support plate 31 are an integrated structure.

[0056] According to the structure described above, the comb teeth 32 and the comb tooth support plate 31 adopt an integrated structure, which has high overall strength and is not easy to damage. Of course, it is not limited to this. The comb teeth 32 and the comb tooth support plate 31 can also be a split structure and connected later by welding or other methods.

[0057] In this embodiment, preferably, Figure 1 As shown, the first supporting member 1 and the second supporting member 2 are both arc-shaped plates, which meet the assembly requirements with the comb tooth assembly 3.

[0058] In this embodiment, preferably, the comb teeth supporting plate 31 is connected to the first supporting member 1 and the second supporting member 2 by welding, but of course, the present invention is not limited thereto.

[0059] In this embodiment, preferably, Figure 1 As shown, the auxiliary threshing device further includes a third supporting member 7; wherein, along the first preset direction, at least one end of the first supporting member 1 and the second supporting member 2 is provided with the third supporting member 7, and the third supporting member 7 is respectively connected to the two.

[0060] According to the structure described above, the third support member 7 plays a role in reinforcing the entire structure, making the entire structure more stable and stronger. Of course, the third support member 7 and the fourth support member may not be provided.

[0061] In this embodiment, preferably, Figure 2 and Figure 3 As shown, along the second preset direction, the projection of each group of comb teeth components 3 is L-shaped, meeting the assembly requirements and disturbance requirements.

[0062] Example 2

[0063] The second embodiment of the present application also provides a harvester, comprising the auxiliary threshing device described in the first embodiment above, and thus, having all the beneficial technical effects of the auxiliary threshing device, and the same technical features and beneficial effects will not be repeated.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An auxiliary threshing device, characterized in that: include: A first supporting member, a second supporting member, and a plurality of comb tooth assemblies; wherein the first supporting member and the second supporting member are sequentially spaced along a first preset direction, and the plurality of comb tooth assemblies are disposed between the first supporting member and the second supporting member and sequentially spaced along a second preset direction; The comb tooth assembly includes a comb tooth support plate and a plurality of comb teeth, wherein the comb tooth support plate is connected to the first supporting member and the second supporting member respectively, and the plurality of comb teeth are sequentially arranged on the comb tooth support plate along the first preset direction; along the second preset direction, the projections of each group of the comb tooth assemblies overlap, and the projections of all the comb tooth assemblies are arranged along the first preset direction in an arc line; Along the direction from the root of the comb teeth close to the comb tooth support plate toward the head thereof away from the comb tooth support plate, the radius of the distribution circle of the projection of the comb teeth in each group of the comb tooth assembly on the side close to the drum gradually decreases, so that the head of the comb teeth is tilted toward the drum side.

2. The auxiliary threshing device according to claim 1, characterized in that: Along the first preset direction, the multiple comb tooth assemblies arranged in sequence are divided into an inner comb tooth assembly, a middle comb tooth assembly and an outer comb tooth assembly, and the middle comb tooth assembly is arranged close to the horizontal plane relative to the inner comb tooth assembly and the outer comb tooth assembly.

3. The auxiliary threshing device according to claim 2, characterized in that: The comb tooth support plates of the inner comb tooth assembly are all arranged in a non-horizontal state.

4. The auxiliary threshing device according to claim 2, characterized in that: The comb tooth support plates of the middle and side comb tooth assemblies are all arranged in a vertical state or a nearly vertical state.

5. The auxiliary threshing device according to claim 2, characterized in that: The comb tooth support plates of the outer comb tooth assembly are both arranged in a non-horizontal and non-vertical state.

6. The auxiliary threshing device according to claim 2, characterized in that: The first supporting member and the second supporting member each include three discontinuous supporting portions, which are respectively arranged corresponding to the inner comb tooth assembly, the middle comb tooth assembly and the outer comb tooth assembly, and are connected to each other; two adjacent comb tooth support plates among any two adjacent ones of the inner comb tooth assembly, the middle comb tooth assembly and the outer comb tooth assembly are detachably connected by a fastening member.

7. The auxiliary threshing device according to claim 1, characterized in that: The minimum distance between any two adjacent comb teeth in each group of the comb tooth assembly is a, and 15mm≤a≤16mm.

8. The auxiliary threshing device according to claim 1, characterized in that: The minimum distance between the comb tooth support plate of one of the two adjacent groups of comb tooth assemblies and the adjacent comb teeth of the other group of the comb tooth assemblies is b, and 10 mm ≤ b ≤ 11 mm.

9. The auxiliary threshing device according to any one of claims 1 to 8, characterized in that: Along the second preset direction, the projection of each group of comb tooth assemblies is L-shaped; and / or The comb teeth and the comb tooth support plate are an integrated structure; and / or The first supporting member and the second supporting member are both arc-shaped plates; and / or The auxiliary threshing device further includes a third supporting member; wherein, along the first preset direction, the third supporting member is provided on at least one end of the first supporting member and the second supporting member, and the third supporting member is respectively connected to the two.

10. A harvester, characterized in that: The auxiliary threshing device comprises the auxiliary threshing device according to any one of claims 1 to 9.

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