Layered chopping and ear picking device assembly and corn harvester

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a layered chopping and ear picking device assembly and a corn harvester. The layered chopping and ear picking device assembly comprises a header rack, the at least two ear picking devices are sequentially arranged on the header rack side by side; a driving part is arranged in each ear picking device, a base plate of each ear picking device is provided with a stalk chopping device which is in transmission connection with the driving part, each stalk chopping device comprises a cutter assembly which is in transmission connection with the driving part, each cutter assembly comprises a cutter frame disc and a flail knife, one end of each flail knife is fixedly connected to the cutter frame disc, and the other end of each flail knife extends out in parallel; the driving part drives the cutter assembly to horizontally rotate, so that the flail knife does circular motion to cut in a circumferential range; wherein the cutter assemblies, corresponding to the stalk chopping devices, of the ear picking devices are arranged in parallel, and the parallel faces where every two adjacent cutter assemblies are located are arranged at intervals. The technical problem that a small-row-spacing header cannot be provided with a stalk chopper capable of guaranteeing the stalk cutting effect is solved.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural machinery, and in particular to a layered chopping and ear picking device assembly and a corn harvester. Background Art

[0002] In the field of agricultural machinery, with the continuous improvement of harvesting machinery technology and the increasing demand for refined harvesting among agricultural machinery users, agricultural machinery users are paying more attention to the height and uniformity of the stems after cutting, and stem chopping has become an indispensable function of harvesting machinery.

[0003] However, in the prior art, due to the limitation of the structure of the chopper itself, a small-row-spacing harvester generally cannot be equipped with a stalk chopper, because the spacing between the ear picking devices of the small-row-spacing harvester is too short. If the ear picking device is provided with a stalk chopper, there are requirements for the cutting range of the stalk chopper's blade, that is, the length of the blade. If it is too short, the stalk cannot be cut off or cut incompletely, resulting in a poor cutting effect. However, if the blade is set to the required length, when used, the blades of two adjacent ear picking devices on the harvester will collide with each other, interfere with each other, and become unusable. Therefore, a small-row-spacing harvester generally cannot be equipped with a stalk chopper that meets the cutting requirements. Utility Model Content

[0004] The purpose of the present application is to provide a layered chopping and ear picking device assembly and a corn harvester to solve the technical problem that a small row spacing cutting platform cannot be equipped with a stalk chopper that can ensure the stalk cutting effect.

[0005] In a first aspect, the present application provides a layered chopping and ear picking device assembly, comprising:

[0006] Header frame; and

[0007] At least two ear picking devices are arranged side by side and in sequence on the header frame;

[0008] Each of the ear picking devices is provided with a driving unit, and a chassis of each of the ear picking devices is provided with a stalk chopping device connected to the driving unit in a transmission manner, and each of the stalk chopping devices comprises a tool assembly connected to the driving unit in a transmission manner, and the tool assembly comprises a tool holder disc, and a flinging knife having one end fixedly connected to the tool holder disc and the other end extending in parallel, and the driving unit drives the tool assembly to rotate horizontally so that the flinging knife performs a circular motion and cuts within a circumferential range;

[0009] Among them, the tool assemblies of the stalk chopping devices corresponding to the ear picking devices are arranged parallel to each other, and there is a gap between the parallel surfaces where every two adjacent tool assemblies are located.

[0010] Furthermore, the spacing between each two adjacent parallel surfaces where the tool assemblies are located is at least greater than 15 mm.

[0011] Furthermore, each of the ear picking devices is connected to the stalk chopping device at the same position, so that each of the stalk chopping devices is arranged side by side, and the connection spacing between the tool assembly of each two adjacent stalk chopping devices and the ear picking device is different.

[0012] Furthermore, when the tool assembly is assembled, its assembly height error does not exceed 20 mm, and its horizontal assembly position error does not exceed 10 mm.

[0013] Further, the driving part is provided with a driving connecting rod;

[0014] The stalk chopping device comprises a connecting part, the connecting part is fixedly connected to the cutter assembly, the connecting part is provided with a connecting hole, the connecting hole is fixedly connected to the driving connecting rod, and the connecting position is locked by tightening a first tightening nut;

[0015] The connection distance between the tool assembly and the ear picking device is adjusted by the position where the connection hole is fixedly connected to the driving connection rod.

[0016] Furthermore, the connecting portion is configured as a tool holder seat, the tool holder seat is provided with the connecting hole, a first through hole is provided in the middle of the tool holder disc, and the outer peripheral side wall of the tool holder seat is welded and fixedly connected with the inner peripheral side wall of the first through hole of the tool holder disc.

[0017] Furthermore, the tool assembly is provided with at least two swing knives, and each of the swing knives is arranged at intervals along the circumference of the tool holder disc;

[0018] At least two of the swinging knives are arranged opposite to each other and extend along the same straight line.

[0019] Furthermore, the tool holder disc comprises an upper tool holder disc and a lower tool holder disc which are fixedly connected face to face, the edge of the upper tool holder disc is provided with at least one first assembly through hole, and the edge of the lower tool holder disc is provided with at least one second assembly through hole which is arranged opposite to the first assembly through hole;

[0020] One end of the fling knife is provided with a third assembly through hole which is opposite to both the first assembly through hole and the second assembly through hole;

[0021] The first tightening fixing piece passes through the first assembly through hole, the third assembly through hole and the second assembly through hole in sequence to tighten and fix the fling knife, the upper tool holder plate and the lower tool holder plate.

[0022] Furthermore, a first gasket is provided between the circumferential edge of the first assembly through hole and the circumferential edge of the third assembly through hole, and a second gasket is provided between the circumferential edge of the second assembly through hole and the circumferential edge of the third assembly through hole; and / or

[0023] A locking washer is provided between the first tightening nut and the connecting hole; and / or

[0024] A first protective sleeve is welded and fixedly connected to the periphery of the tightening end cap of the first tightening fixture;

[0025] A second protective sleeve is welded and fixedly connected to the periphery of the first tightening nut.

[0026] In a first aspect, the present application provides a corn harvester, comprising the layered chopping and ear picking device assembly as described in any one of the above.

[0027] Compared with the prior art, the present application provides a layered chopping and ear-picking device assembly and a corn harvester using the layered chopping and ear-picking device assembly. The layered chopping and ear-picking device assembly includes a harvesting table frame, and at least two ear-picking devices arranged side by side on the harvesting table frame in sequence. A driving unit is provided in each ear-picking device, and a chassis of each ear-picking device is provided with a stalk chopping device connected to the driving unit in a transmission manner. Each stalk chopping device includes a tool assembly connected to the driving unit in a transmission manner. The tool assembly includes a tool holder disc and a swinging knife with one end fixedly connected to the tool holder disc and the other end extending in parallel. The driving unit drives The tool assembly rotates horizontally and causes the fling knife to make a circular motion and cut within a circular range; wherein, the tool assemblies of the stem shredding devices corresponding to the ear picking devices are arranged parallel to each other, and there is a spacing between the parallel surfaces where each two adjacent tool assemblies are located, so that the circular cutting surfaces of the two adjacent fling knives are spaced apart from each other and operate independently without affecting each other. At the same time, the length of the fling knife is not limited, and the length of the fling knife can be set within a standard range, thereby ensuring the cutting quality effect of the fling knife when shredding the stems, and solving the technical problem that a small row spacing cutting table cannot be equipped with a stem shredder that can ensure the stem cutting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. 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 paying any creative work.

[0029] Figure 1 A schematic diagram of the structure of the layered chopping and ear picking device assembly provided in an embodiment of the present application;

[0030] Figure 2 A side view of the layered chopping and ear picking device assembly provided in an embodiment of the present application;

[0031] Figure 3 A side perspective view of a layered chopping and ear picking device assembly provided in an embodiment of the present application;

[0032] Figure 4 A top view of the layered chopping and ear picking device assembly provided in an embodiment of the present application;

[0033] Figure 5 A schematic diagram of the circumferential cutting range of the fling knife of the layered chopping and ear picking device assembly provided in an embodiment of the present application;

[0034] Figure 6 A schematic diagram of the structure of a stem chopping device provided in an embodiment of the present application;

[0035] Figure 7 A side view of a stalk chopping device provided in an embodiment of the present application;

[0036] Figure 8 This is a schematic diagram of the structure of the tool holder disc and the connecting part after being welded together in an embodiment of the present application.

[0037] Reference numerals:

[0038] 100-layered chopping and ear picking device assembly;

[0039] 10-ear picking device;

[0040] 20-stem chopping device;

[0041] 21- tool assembly;

[0042] 211- knife holder plate;

[0043] 2111-first through hole;

[0044] 212-upper tool holder plate;

[0045] 2121-first assembly through hole;

[0046] 213-lower knife holder plate;

[0047] 214-throwing knife;

[0048] 215-First tighten the fixing bolts;

[0049] 216-Tighten the bolt cap;

[0050] 217-first protective cover;

[0051] 22- tool holder seat;

[0052] 221-connection hole;

[0053] 222-first tightening nut;

[0054] 223-locking pad;

[0055] 224-Second protective cover. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0057] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0058] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0059] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0060] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0061] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0062] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0063] like Figures 1 to 5 As shown, the embodiment of the present application provides a layered chopping and ear picking device assembly 100, and a corn harvester using the layered chopping and ear picking device assembly 100.

[0064] The layered chopping and ear picking device assembly 100 includes a header frame, and at least two ear picking devices 10 arranged side by side and in sequence on the header frame; Figures 1 to 5 As shown, the embodiment of the present application is described by taking two ear picking devices 10 arranged side by side as an example. Of course, the specific number of ear picking devices 10 is set according to actual needs.

[0065] The ear picking device 10 is provided with a driving unit, and specifically, the driving unit can be provided with a driving connecting rod. The chassis of each ear picking device 10 is provided with a stem chopping device 20 that is transmission-connected to the driving unit. Each stem chopping device 20 includes a tool assembly 21 that is transmission-connected to the driving unit (specifically, the driving connecting rod). The tool assembly 21 may include a tool holder disc 211, and a flinging knife 214 with one end fixedly connected to the tool holder disc 211 and the other end extending in parallel. The driving unit drives the tool assembly 21 to rotate horizontally, so that the flinging knife 214 performs a circular motion and can cut the stems within a circular range, such as Figure 5 The circular cutting range A is shown; wherein, the tool assemblies 21 of the stalk chopping devices 20 corresponding to the ear picking devices 10 are arranged parallel to each other, and there is a gap between the parallel surfaces where every two adjacent tool assemblies 21 are located.

[0066] Compared with the prior art, the layered chopping and ear picking device assembly 100 and the corn harvester using the layered chopping and ear picking device assembly 100 provided in the embodiment of the present application, the layered chopping and ear picking device assembly 100 includes a cutting table frame, and at least two ear picking devices 10 arranged side by side on the cutting table frame in sequence, each ear picking device 10 is provided with a driving part, and the chassis of each ear picking device 10 is provided with a stalk chopping device 20 connected to the driving part in a transmission manner, each stalk chopping device 20 includes a tool assembly 21 connected to the driving part in a transmission manner, and the tool assembly 21 includes a tool holder disc 211 and a fling knife 214 with one end fixedly connected to the tool holder disc 211 and the other end extending in parallel, the The driving unit drives the tool assembly 21 to rotate horizontally and causes the fling knife 214 to make a circular motion and cut within a circular range; wherein, the tool assemblies 21 of the stalk chopping devices 20 corresponding to the ear picking devices 10 are arranged parallel to each other, and there is a spacing between the parallel surfaces where each two adjacent tool assemblies 21 are located, so that the circular cutting surfaces of the two adjacent fling knives 214 are spaced apart from each other and operate independently of each other without affecting each other, and at the same time, the length of the fling knife 214 is not limited, and the length of the fling knife 214 can be set within a standard range, thereby ensuring the cutting quality effect of the fling knife 214 in chopping the stalks, and solving the technical problem that a small row spacing cutting table cannot be equipped with a stalk chopper that can ensure the stalk cutting effect.

[0067] A further embodiment is to ensure that the swinging knives 214 of each tool assembly 21 do not affect each other, ensure normal independent cutting work, and at the same time ensure that the heights of the remaining stem roots are not much different from each other, so as not to affect the overall height uniformity. Figure 2 As shown, the spacing a between the parallel surfaces of each two adjacent tool assemblies 21 is preferably at least greater than 15 mm. This data is used to calculate the minimum gap between the two swing knives 214 of two adjacent tool assemblies 21 by checking the assembly error of the swing knives 214 and the vibration error during the movement, which can effectively ensure that the two swing knives 214 of the two adjacent tool assemblies 21 do not affect each other, ensure a better stem cutting effect, and at the same time do not affect the overall height uniformity of the remaining stem roots.

[0068] Further preferably, since the blade 214 will vibrate up and down during the circular motion, the spacing a between the parallel surfaces where the blades 214 of the two adjacent tool assemblies 21 are located is preferably controlled to be no less than 15.5 mm to further ensure the realization of the layered shredding function.

[0069] In order to further ensure efficient cutting of stalks in rows, it is preferred that each ear picking device 10 is connected to the stalk chopping device 20 at the same position, so that each stalk chopping device 20 is arranged side by side, but at the same time, the connection spacing between the tool assembly 21 of each two adjacent stalk chopping devices 20 and the ear picking device 10 is different, so as to achieve layered cutting at different heights. Figure 5 As shown, the projections of the circumferential cutting ranges A of the fling knives 214 of the tool assemblies 21 of two adjacent stalk chopping devices 20 have overlapping parts.

[0070] Furthermore, after calculating the minimum gap between the two swing knives 214 by checking the assembly error of the swing knives 214 and the vibration error during movement, the actual height of the tool assembly 21 when welded and assembled is determined by the minimum gap value to achieve the layered shredding function.

[0071] When assembling the cutter assembly 21, ensure that the assembly height error of the cutter assembly 21 does not exceed 20 mm, and ensure that the horizontal assembly position error of the cutter assembly 21 does not exceed 10 mm, so as to ensure that the assembled structure can normally realize the layer shredding function.

[0072] In a preferred embodiment, the aforementioned stalk chopping device 20 includes a connecting portion, which is fixedly connected to the cutter assembly 21, and the connecting portion is provided with a connecting hole 221, and the connecting hole 221 is fixedly connected to the driving connecting rod of the driving portion provided in the ear picking device 10, and the connecting position is locked by tightening the first tightening nut 222; and the present application can adjust the connection spacing between the cutter assembly 21 and the ear picking device 10 through the position where the connecting hole 221 is fixedly connected to the driving connecting rod. The layered chopping function is realized by different spacing effects.

[0073] A specific embodiment is as follows Figures 6 to 8 As shown, the aforementioned connection part can be specifically configured as a tool holder seat 22, the tool holder seat 22 is provided with the aforementioned connection hole 221, the middle part of the tool holder disc 211 can be provided with a first through hole 2111, and the outer peripheral side wall of the tool holder seat 22 is welded and fixedly connected with the inner peripheral side wall of the first through hole 2111 of the tool holder disc 211 to increase the stability of the connection.

[0074] In another specific embodiment, the aforementioned tool assembly 21 may be provided with at least two swing knives 214, each swing knives 214 is arranged at intervals along the circumference of the tool holder disc 211, and preferably the swing knives 214 have the same length. Figures 1 to 7 As shown, at least two fling knives 214 are arranged opposite to each other and extend along the same straight line, thereby saving the number of fling knives and ensuring a better stalk cutting effect.

[0075] An optional embodiment is as follows Figure 2 and Figures 6 to 8As shown, the tool holder disc 211 may specifically include an upper tool holder disc 212 and a lower tool holder disc 213 which are fixedly connected face to face, the upper tool holder disc 212 is provided with at least one first assembly through hole 2121 at its edge, and correspondingly, the lower tool holder disc 213 is provided with at least one second assembly through hole which is arranged opposite to the first assembly through hole 2121 at its edge, and the present application is illustrated by taking four first assembly through holes 2121 and four second assembly through holes which are evenly spaced as an example; correspondingly, one end of each swinging knife 214 is provided with a third assembly through hole which is opposite to the first assembly through hole 2121 and the second assembly through hole; and the swinging knife 214, the upper tool holder disc 212 and the lower tool holder disc 213 are tightened and fixed by tightening the bolt cap 216 through the first tightening fixing member which passes through the first assembly through hole, the third assembly through hole and the second assembly through hole in sequence. The first tightening fixing member may specifically be a first tightening fixing bolt 215.

[0076] A further embodiment is that Figures 6 to 8 As shown, a first gasket may be provided between the circumferential edge of the aforementioned first assembly through hole 2121 and the circumferential edge of the third assembly through hole; a second gasket may be provided between the circumferential edge of the aforementioned second assembly through hole and the circumferential edge of the third assembly through hole at the front end; a locking pad 223 may be provided between the aforementioned first tightening nut 222 and the aforementioned connecting hole 221; so as to ensure that different connecting structures are not easy to move when connected, ensure the firmness of the connection tightening, and protect the connection position.

[0077] A further embodiment is that Figures 6 to 8 As shown, the periphery of the tightening end cap (such as the tightening bolt cap 216) of the aforementioned first tightening fixing member (such as the first tightening fixing bolt 215) can be welded and fixedly connected with the first protective sleeve 217; similarly, the periphery of the aforementioned first tightening nut 222 can be welded and fixedly connected with the second protective sleeve 224. After the integral welding connection, it can be ensured that the connection position is not loose, and the connection firmness is guaranteed to the greatest extent.

[0078] 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 it. 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 replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A layered chopping and picking device assembly, characterized in that: include: Header frame; and At least two ear picking devices are arranged side by side and in sequence on the header frame; Each of the ear picking devices is provided with a driving unit, and a chassis of each of the ear picking devices is provided with a stalk chopping device connected to the driving unit in a transmission manner, and each of the stalk chopping devices comprises a tool assembly connected to the driving unit in a transmission manner, and the tool assembly comprises a tool holder disc, and a flinging knife having one end fixedly connected to the tool holder disc and the other end extending in parallel, and the driving unit drives the tool assembly to rotate horizontally so that the flinging knife performs a circular motion and cuts within a circumferential range; Among them, the tool assemblies of the stalk chopping devices corresponding to the ear picking devices are arranged parallel to each other, and there is a gap between the parallel surfaces where every two adjacent tool assemblies are located.

2. The layered chopping and picking device assembly according to claim 1 is characterized in that: The spacing between each two adjacent parallel surfaces where the tool assemblies are located is at least greater than 15 mm.

3. The layered chopping and picking device assembly according to claim 1 or 2, characterized in that: Each of the ear picking devices is connected to the stalk chopping device at the same position, so that each of the stalk chopping devices is arranged side by side, and the connection spacing between the tool assembly and the ear picking device of each two adjacent stalk chopping devices is different.

4. The layered chopping and picking device assembly according to claim 3 is characterized in that: When the tool assembly is assembled, the assembly height error does not exceed 20 mm, and the horizontal assembly position error does not exceed 10 mm.

5. The layered chopping and picking device assembly according to claim 3 is characterized in that: The driving part is provided with a driving connecting rod; The stalk chopping device comprises a connecting part, the connecting part is fixedly connected to the cutter assembly, the connecting part is provided with a connecting hole, the connecting hole is fixedly connected to the driving connecting rod, and the connecting position is locked by tightening a first tightening nut; The connection distance between the tool assembly and the ear picking device is adjusted by the position where the connection hole is fixedly connected to the driving connection rod.

6. The layered chopping and ear picking device assembly according to claim 5 is characterized in that: The connecting portion is configured as a tool holder seat, the tool holder seat is provided with the connecting hole, a first through hole is provided in the middle of the tool holder disc, and the outer peripheral side wall of the tool holder seat is fixedly connected with the inner peripheral side wall of the first through hole of the tool holder disc by welding.

7. The layered chopping and ear picking device assembly according to claim 6 is characterized in that: The tool assembly is provided with at least two swing knives, and each of the swing knives is arranged at intervals along the circumference of the tool holder disc; At least two of the swinging knives are arranged opposite to each other and extend along the same straight line.

8. The layered chopping and ear picking device assembly according to claim 6 or 7, characterized in that: The tool holder disc comprises an upper tool holder disc and a lower tool holder disc which are fixedly connected face to face, the edge of the upper tool holder disc is provided with at least one first assembly through hole, and the edge of the lower tool holder disc is provided with at least one second assembly through hole which is arranged opposite to the first assembly through hole; One end of the fling knife is provided with a third assembly through hole which is opposite to both the first assembly through hole and the second assembly through hole; The first tightening fixing piece passes through the first assembly through hole, the third assembly through hole and the second assembly through hole in sequence to tighten and fix the fling knife, the upper tool holder plate and the lower tool holder plate.

9. The layered chopping and ear picking device assembly according to claim 8 is characterized in that: A first gasket is provided between the circumferential edge of the first assembly through hole and the circumferential edge of the third assembly through hole, and a second gasket is provided between the circumferential edge of the second assembly through hole and the circumferential edge of the third assembly through hole; and / or A locking washer is provided between the first tightening nut and the connecting hole; and / or A first protective sleeve is welded and fixedly connected to the periphery of the tightening end cap of the first tightening fixture; A second protective sleeve is welded and fixedly connected to the periphery of the first tightening nut.

10. A corn harvester, characterized in that: It comprises the layered chopping and ear picking device assembly described in any one of claims 1-9.

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