Transition cylinder structure and corn harvester capable of harvesting stalks and ears

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a transition cylinder structure and a corn harvester capable of harvesting stalks and ears, which comprises a transition cylinder shell, side plates are respectively arranged at the bottoms of the left side and the right side of the transition cylinder shell, and a bottom plate structure of the transition cylinder shell comprises a front-end inserting plate and a rear-end bottom plate. The front-end inserting plate is arranged close to a front-end feeding port of the transition cylinder shell, the rear-end bottom plate is arranged close to a rear-end discharging port of the transition cylinder shell, an inserting groove is formed in the position, located between the side plate and the front end of the rear-end bottom plate, of the bottom of the transition cylinder shell, the front-end inserting plate is inserted into the inserting groove, and the rear-end inserting plate is inserted into the inserting groove. The rear end part of the front-end inserting plate is pressed on the front end part of the rear-end bottom plate, and the left side and the right side of the front-end inserting plate are fixedly connected with the side plates on the two sides through first bolt assemblies respectively; the stubble choking structure mainly aims at a transition cylinder with an observation opening and solves the problem that the transition cylinder is blocked due to the stubble choking structure.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a transition cylinder structure and a stalk-and-ear corn harvester. Background Art

[0002] With the development of domestic corn planting and animal husbandry, corn harvesters for both stalks and ears have been widely promoted because they can harvest corn ears and corn stalks at the same time. As a transition tube structure connecting the chopper (chopping mechanism) and the throwing blower (stalk wind throwing mechanism) of the corn harvester for both stalks and ears, blockage often occurs in actual use. There are many reasons for the blockage phenomenon. Excluding the situation where the throwing capacity is insufficient due to sudden parking or speed drop caused by human factors, there are two common reasons. One is that when the stalk and ear harvester model harvests green corn plants, the moisture and sugar content are too high, resulting in adhesion and blockage. The other is that when the corn stalks in the inner cavity of the transition tube are thrown at high speed, they hit the choking structure (the choking structure refers to the structure in the path where the material passes, the rear part is higher than the front part, similar to the steps of stairs), causing the material to diverge and the speed to decrease, and finally leading to blockage. This structure mainly solves the problem of transition tube blockage caused by the choking structure, and has the advantages of quick disassembly and easy cleaning.

[0003] Currently, there are two main types of transition tube structures on the market. One is that the bottom plate of the transition tube is not provided with an observation port; the second is that the transition tube is provided with an observation port, which is fixed by bolts on both sides or by bolts on the top of the lower slot.

[0004] Disadvantages of existing technology:

[0005] The second type of transition tube is provided with an observation port, which is fixed by bolts on both sides or by bolts on the top of the lower slot. Due to the influence of uncertain factors such as parts manufacturing and assembly, it is easy to have a choking structure, causing a risk of blockage. Utility Model Content

[0006] The utility model aims to provide a transition tube structure, which is mainly aimed at a transition tube with an observation port, and solves the problem of transition tube blockage caused by a choking structure.

[0007] Another object of the utility model is to provide a corn harvester for harvesting both stalks and ears, which can mainly target a transition tube with an observation port and solve the problem of transition tube blockage caused by a choking structure.

[0008] The technical solution of the utility model is achieved in this way:

[0009] A transition cylinder structure is applied between the chopping mechanism and the stalk wind throwing mechanism of a corn harvester that harvests both stalks and ears. The transition cylinder structure has an observation port and includes a transition cylinder shell. The bottoms of the left and right sides of the transition cylinder shell are respectively provided with side panels. The bottom plate structure of the transition cylinder shell includes a front end plug plate and a rear end bottom plate. The front end plug plate is arranged close to the front end feed port of the transition cylinder shell, and the rear end bottom plate is arranged close to the rear end discharge port of the transition cylinder shell. A slot is arranged at the bottom of the transition cylinder shell and between the side plate and the front end of the rear end bottom plate. The front end plug plate is inserted into the slot, and the rear end of the front end plug plate is pressed onto the front end of the rear end bottom plate. The left and right sides of the front end plug plate are respectively connected and fixed to the side plates on both sides by first bolt assemblies.

[0010] Furthermore, it also includes an L-shaped connector, which includes a first plate body and a second plate body that are integrally formed. The L-shaped connector is located below the rear end of the front end plug plate, and the first plate body is welded to the front end plug plate.

[0011] Furthermore, a third plate body is provided at the front end of the rear end bottom plate, and the third plate body is welded and fixed to the rear end bottom plate, or the third plate body and the rear end bottom plate are an integrally formed structure;

[0012] The third plate body is connected and fixed to the second plate body by a second bolt assembly.

[0013] Furthermore, the third plate body is parallel to and fits with the second plate body.

[0014] Furthermore, the first bolt assembly includes a matching first fastening bolt and a first nut.

[0015] Furthermore, the second bolt assembly includes a matching second fastening bolt and a second nut.

[0016] Furthermore, a handle is provided at the bottom of the front plugboard.

[0017] Furthermore, the bottom plate structure is arc-shaped as a whole.

[0018] Furthermore, the side plate is connected to the transition tube shell by welding or bolts.

[0019] A stalk-and-ear corn harvester comprises a chopping mechanism and a stalk wind-throwing mechanism, and also comprises the transition tube structure, wherein the transition tube structure is arranged between the chopping mechanism and the stalk wind-throwing mechanism.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The transition tube structure provided in the present application is based on the common transition tube structure with an observation port, and divides the transition tube bottom plate structure into two parts, and is improved into a segmented transition tube structure with a front end plug plate and a rear end bottom plate overlapped. The front end plug plate is assembled in the slot in an overlapping manner to ensure that the rear end of the front end plug plate is pressed on the front end of the rear end bottom plate during assembly (the rear end of the front end plug plate is higher than the front end of the rear end bottom plate, similar to the state when going down stairs). The material channel in the transition tube shell has no choking structure, eliminates the choking structure, reduces or even eliminates the risk of blockage in the transition tube, and even if there is a problem of man-made blockage, the problem of man-made blockage can be solved by removing the front end plug plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is an axonometric view of the transition tube shell of the utility model;

[0024] Figure 2 This is an axonometric view of the transition tube housing of the utility model from another perspective;

[0025] Figure 3 It is a front view of the transition tube housing of the utility model;

[0026] Figure 4 It is a rear view of the transition tube housing of the utility model;

[0027] Figure 5 It is a right side view of the transition tube shell of the utility model;

[0028] Figure 6 For this utility model Figure 1 A partial enlarged view of the structure at center A;

[0029] Figure 7 For this utility model Figure 5 A partial enlarged view of the structure at point B in the middle.

[0030] In the figure:

[0031] 1-transition tube housing; 101-front end plug board; 102-rear end bottom plate; 1021-third plate body;

[0032] 103- left side wall; 104- right side wall;

[0033] 201-first plate; 202-second plate;

[0034] 3-first bolt assembly; 4-second bolt assembly;

[0035] 5- side panel; 6- handle. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] 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.

[0039] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", 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 utility model product is usually placed when in use, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 utility model. 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.

[0040] 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.

[0041] In the description of the present invention, it is also necessary to explain 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 components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0043] Example 1

[0044] Reference Figure 1-Figure 7 This embodiment provides a transition tube structure, which is applied between the chopping mechanism and the stalk wind throwing mechanism of a corn harvester that harvests both stalks and ears. The transition tube structure has an observation port, which belongs to the type of transition tube with an observation port, that is, the second transition tube structure described in the background technology.

[0045] The transition tube structure includes a transition tube shell 1, and the bottoms of the left and right side walls of the transition tube shell 1 are respectively provided with side panels 5, and the side panels 5 are connected to the transition tube shell 1 by welding or bolts. The bottom plate structure of the transition tube shell 1 includes a front plug plate 101 and a rear bottom plate 102, and the front plug plate 101 is arranged close to the front feed port of the transition tube shell 1, and the rear bottom plate 102 is arranged close to the rear discharge port of the transition tube shell 1. The material chopped by the shredder mechanism (chopper) flows into the front feed port of the transition tube shell 1, passes through the inner cavity channel of the transition tube, and is discharged from the rear discharge port of the transition tube to the stalk wind throwing mechanism, and the bottom plate structure is in an arc shape as a whole, which is mainly used to guide the material, and the chopped material is discharged to the stalk wind throwing mechanism along the arc path of the bottom plate structure. Among them, the bottom plate structure is designed as an arc as a whole (such as Figure 1 , Figure 2 , Figure 5 ), which is relatively smooth and easy to discharge.

[0046] Preferably, the side plate 5 is welded and fixed to the transition tube housing 1. The left side plate 5 is welded to the left side wall 103 of the transition tube housing 1, and the right side plate 5 is welded to the right side wall 104 of the transition tube housing 1.

[0047] A slot is provided at the bottom of the transition tube housing 1 and between the side plate 5 and the front end of the rear end bottom plate 102. The front end plug-in plate 101 is inserted into the slot (such as Figure 7), at this time, the front end plug board 101 is movably plugged into the slot, and the rear end of the front end plug board 101 is pressed on the front end of the rear end bottom plate 102, and the left and right sides of the front end plug board 101 are respectively connected and fixed to the side panels 5 on both sides by the first bolt assembly 3.

[0048] The transition tube structure provided by the present application is based on the common transition tube structure with an observation port, and the transition tube bottom plate structure is divided into two parts, and is improved into a segmented transition tube structure of a front end plug plate 101 and a rear end bottom plate 102 overlapped. The rear end bottom plate 102 is fixedly welded to the transition tube shell 1, and is assembled in the slot by overlapping the front end plug plate 101, so that the rear end of the front end plug plate 101 is pressed on the front end of the rear end bottom plate 102 during assembly (the rear end of the front end plug plate 101 is higher than the front end of the rear end bottom plate 102, similar to the state when going down stairs, the front end plug plate 101 is higher than the rear end bottom plate 102 at the transition point, such as Figure 6 and Figure 7 ), the material channel in the transition tube shell 1 has no choking structure, the choking structure is eliminated, and the risk of blockage in the transition tube is reduced or even eliminated. Even if there is a man-made blockage problem, the problem of man-made blockage can be solved by removing the front end plug plate 101.

[0049] In order to further improve the firmness of the installation of the front-end plug-in board 101, an L-shaped connector is also provided, and the L-shaped connector includes an integrally formed first plate body 201 and a second plate body 202. The L-shaped connector is located under the rear end of the front-end plug-in board 101, and the first plate body 201 is welded and fixed to the bottom surface of the front-end plug-in board 101. At the same time, the second plug-in board is located on a side close to the rear end bottom plate 102.

[0050] Correspondingly, a third plate body 1021 is disposed at the front end of the rear end bottom plate 102 , and the third plate body 1021 is welded and fixed to the rear end bottom plate 102 , or the third plate body 1021 and the rear end bottom plate 102 are an integrally formed structure.

[0051] Preferably, the third plate body 1021 and the rear end bottom plate 102 are an integrally formed structure, the third plate body 1021 and the second plate body 202 are parallel and fitted, and the third plate body 1021 and the second plate body 202 are connected and fixed by a second bolt assembly 4 .

[0052] In an optional implementation of this embodiment, the first bolt assembly 3 includes a matching first fastening bolt and a first nut. A plurality of through holes for the first fastening bolt to pass through are sequentially arranged along the length direction of the side plate 5, and correspondingly, a row of through holes corresponding to the through holes on the side plate 5 are respectively arranged on the left and right sides of the front plug plate 101 to facilitate the installation and locking of the first bolt assembly 3.

[0053] A plurality of through holes for the second fastening bolts to pass through are respectively arranged on the third plate body 1021. When one L-shaped connecting piece is designed, a plurality of through holes corresponding to the through holes on the third plate body 1021 are arranged on the second plate body 202 to facilitate the installation and locking of the second bolt assembly 4.

[0054] In an optional implementation of this embodiment, a handle 6 (such as Figure 4 During assembly, the front plug plate 101 is assembled inwardly along the slot. After being inserted into position, the handle 6 is grasped by hand, and all the first bolt assemblies 3 are installed and pre-tightened in sequence, and then all the second bolt assemblies 4 are installed and pre-tightened. Finally, all the first bolt assemblies 3 and the second bolt assemblies 4 are tightened in the pre-tightening sequence to complete the assembly.

[0055] The present application utilizes the overlapping method of the front end plug plate 101 to ensure that the material channel has no choking structure during assembly, reduce or eliminate the risk of transition tube blockage, and can solve problems such as human-caused blockage by disassembling the front end plug plate 101.

[0056] Example 2

[0057] The present embodiment provides a corn harvester for harvesting both stalks and ears, comprising a chopping mechanism and a stalk wind-throwing mechanism, and also comprising the transition cylinder structure, which is arranged between the chopping mechanism and the stalk wind-throwing mechanism. The stalks chopped by the chopping mechanism enter the stalk wind-throwing mechanism through the intermediate transition cylinder structure under the throwing action of the chopping mechanism, and the stalk wind-throwing mechanism throws the chopped stalks to a grass receiving vehicle to realize the recovery of the stalks.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

[0059] In addition, those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the above claims, any one of the claimed embodiments may be used in any combination. The information disclosed in this background technology section is intended only to deepen the understanding of the overall background technology of the present invention and should not be regarded as an admission or in any form of implication that the information constitutes prior art known to those skilled in the art.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0061] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A transition tube structure, used between the chopping mechanism and the stalk wind throwing mechanism of a stalk-ear corn harvester, the transition tube structure having an observation port, characterized in that: The invention comprises a transition barrel shell (1), wherein the bottoms of the left and right sides of the transition barrel shell (1) are respectively provided with side plates (5), and the bottom plate structure of the transition barrel shell (1) comprises a front plug plate (101) and a rear bottom plate (102), wherein the front plug plate (101) is arranged close to the front feed port of the transition barrel shell (1), and the rear bottom plate (102) is arranged close to the rear discharge port of the transition barrel shell (1), and a slot is arranged at the bottom of the transition barrel shell (1) and between the front ends of the side plates (5) and the rear end plate (102), wherein the front plug plate (101) is inserted into the slot, and the rear end of the front plug plate (101) is pressed on the front end of the rear end plate (102), and the left and right sides of the front plug plate (101) are respectively connected and fixed to the side plates (5) on both sides by first bolt assemblies (3).

2. The transition tube structure according to claim 1 is characterized in that: It also includes an L-shaped connecting piece, the L-shaped connecting piece includes a first plate body (201) and a second plate body (202) formed in one piece, the L-shaped connecting piece is located below the rear end of the front end plug plate (101), and the first plate body (201) is welded to the front end plug plate (101).

3. The transition tube structure according to claim 2 is characterized in that: A third plate body (1021) is provided at the front end of the rear end bottom plate (102), and the third plate body (1021) is fixed to the rear end bottom plate (102) by welding, or the third plate body (1021) and the rear end bottom plate (102) are an integrally formed structure; The third plate body (1021) and the second plate body (202) are connected and fixed via a second bolt assembly (4).

4. The transition tube structure according to claim 3 is characterized in that: The third plate body (1021) is parallel to and in contact with the second plate body (202).

5. The transition tube structure according to claim 1, characterized in that: The first bolt assembly (3) comprises a matching first fastening bolt and a first nut.

6. The transition tube structure according to claim 3, characterized in that: The second bolt assembly (4) comprises a matching second fastening bolt and a second nut.

7. The transition tube structure according to claim 1, characterized in that: A handle (6) is provided at the bottom of the front plugboard (101).

8. The transition tube structure according to claim 1, characterized in that: The bottom plate structure is arc-shaped as a whole.

9. The transition tube structure according to claim 1, characterized in that: The side plate (5) is connected to the transition tube shell (1) by welding or bolts.

10. A corn harvester for harvesting both stalks and ears, comprising a chopping mechanism and a stalk wind throwing mechanism, characterized in that: It also includes a transition tube structure as described in any one of claims 1 to 9, wherein the transition tube structure is arranged between the chopping mechanism and the stalk wind throwing mechanism.

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