Ear picking box of corn harvester with extremely narrow row spacing and installation method of ear picking box

Abstract

The invention aims to provide an extremely-narrow-row-spacing corn harvester ear picking box and a mounting method thereof, and belongs to the technical field of corn mechanical harvesting. The ear picking box comprises a main box body, an auxiliary box body, an input shaft, a transmission shaft, a seedling pulling output shaft, a stem pulling roller output shaft and a seedling pulling middle shaft. The device is characterized by comprising oblique transmission of a reel driven bevel gear and a reel driving bevel gear at an angle of 30-60 degrees, preferably 45 degrees, and large-end modulus and tooth number of the reel driving bevel gear and the reel driven bevel gear. The ear picking box further comprises an input idler shaft, a sliding pin type safety clutch, the size range of the length and the wall thickness of the main box body and a seedling pulling supporting rib used for enhancing the strength of the seedling pulling supporting seat. And the plurality of ear picking boxes are detachably connected through the double-row chain. By improving connection and transmission of the seedling pulling middle shaft and the transmission shaft, the length size of the main box body is reduced, the space utilization rate is increased, the reliability and the line spacing adaptability of the ear picking box are enhanced, and the development requirements of agricultural mechanization and modernization are met.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical corn harvesting, and in particular to an ear picking box of an extremely narrow row spacing corn harvester and an installation method thereof. Background Art

[0002] As the most important component of the corn harvester's header mechanism, the reliability and stability of the corn harvester's ear picking box are particularly important. The ear picking box is the hub of the power transmission of the entire header system. Once it fails, it will affect the work efficiency at the least and cause the entire header to stop at the worst. Due to the different planting methods and plant row spacing in different regions, the traditional wide row spacing ear picking box cannot effectively meet the harvesting operations in various regions, the harvesting efficiency is not high, the harvest rate is low, and the number of ear picking boxes mounted on the header of the corn harvester depends on the length of the column box of the ear picking box. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide an ear picking box for an extremely narrow row spacing corn harvester and an installation method thereof. The driven bevel gear in the reed-pulling intermediate shaft and the active bevel gear in the transmission shaft are obliquely driven, so that the length dimension of the main box body is reduced, making it easier for the harvesting platform to mount more main boxes.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] An ear picking box for an extremely narrow row spacing corn harvester, comprising:

[0006] A main box body is fixedly connected to the cutting platform, and a transmission shaft, a reed-pulling output shaft and a stalk-pulling roller output shaft are arranged in the main box body;

[0007] A sub-box body is fixed to the side of the main box body, an input shaft is installed in the sub-box body, and the input shaft is connected to the transmission shaft through a transmission assembly;

[0008] A reeling intermediate shaft is installed above the main housing, the axis of the reeling intermediate shaft is parallel to the axis of the reeling output shaft, the axis of the reeling intermediate shaft is obliquely arranged with the axis of the transmission shaft, a reeling driven bevel gear and a reeling input gear are fixedly installed on the reeling intermediate shaft, and the reeling input gear is fixedly connected to one side of the reeling driven bevel gear; a reeling output gear is fixedly installed on the reeling output shaft; and a reeling active bevel gear is fixedly installed on the transmission shaft;

[0009] The reel output gear is meshed with the reel input gear, and the reel driven bevel gear in the reel intermediate shaft is obliquely driven with the reel driving bevel gear in the transmission shaft to drive the reel output gear to rotate;

[0010] There are multiple ear picking boxes installed on the cutting platform, and the number of ear picking boxes can be adjusted to adapt to harvesting operations with different plant row spacings.

[0011] Furthermore, the angle of the oblique transmission between the driven bevel gear of the reel plowing and the active bevel gear of the reel plowing is 30-60 degrees.

[0012] Furthermore, the oblique transmission angle between the driven bevel gear of the reel plowing and the active bevel gear of the reel plowing is 45°.

[0013] Furthermore, the large end module of the active bevel gear of the reel plowing is 3.75 mm, and the number of teeth is 19; the large end module of the driven bevel gear of the reel plowing is 3.75 mm, and the number of teeth is 20.

[0014] Furthermore, it also includes an input idler shaft installed in the auxiliary case, and the input idler shaft is connected to the input shaft through gear meshing transmission to change the input direction.

[0015] Furthermore, it also includes a sliding pin type safety clutch, which is connected to the input shaft and is used to provide input overload protection.

[0016] Furthermore, the length of the main box body ranges from 300 mm to 350 mm.

[0017] Furthermore, the wall thickness of the main box body ranges from 7 mm to 10 mm.

[0018] Furthermore, the main box body is provided with a plurality of reel-pushing support ribs for reinforcing the strength of the reel-pushing support seat, and the plurality of reel-pushing support ribs are distributed in parallel and have a thickness of 8 mm to 10 mm.

[0019] Furthermore, the multiple ear picking boxes are detachably connected via a double-row chain.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The present invention improves the connection and transmission between the plowing intermediate shaft and the transmission shaft, adds a plowing driven bevel gear to the plowing intermediate shaft, adds a plowing active bevel gear to the transmission shaft, and makes the plowing driven bevel gear and the plowing active bevel gear adopt an oblique transmission method, and uses the plowing intermediate shaft as an intermediate transmission part to optimize the spatial layout inside the main box body, so that the length of the main box body can be controlled, and the distance between the two ear picking boxes is reduced after being connected, which is conducive to installing more ear picking boxes on the cutting platform, thereby increasing the working efficiency, and improving the row spacing adaptability by adjusting the number of ear picking boxes to adapt to the harvesting operation of different plant row spacings.

[0022] (2) The present invention uses a sliding pin type safety clutch as an input end protection device, which can prevent the input shaft from being subjected to excessive impact when encountering abnormal conditions, thereby ensuring the overall safety and reliability of the ear picking box.

[0023] In summary, the present invention improves the working efficiency, has a large number of harvesting rows and good adaptability to row spacing, solves the shortcomings of existing ear picking boxes in terms of reliability, row spacing adaptability and working efficiency, and meets the development requirements of close planting technology, agricultural mechanization and agricultural modernization. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0025] The present invention may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0026] Figure 1 This is a general assembly diagram of an ear picking box of an extremely narrow row spacing corn harvester provided by an embodiment of the present invention;

[0027] Figure 2 It is an exploded view of an ear picking box of an extremely narrow row spacing corn harvester provided by an embodiment of the present invention;

[0028] Figure 3 This is a main box diagram of an ear picking box for an extremely narrow row spacing corn harvester provided by an embodiment of the present invention;

[0029] Figure 4 It is a cross-sectional schematic diagram of a corn harvester ear picking box in the prior art;

[0030] Figure 5 It is a cross-sectional schematic diagram of an ear picking box of an extremely narrow row spacing corn harvester provided by an embodiment of the present invention;

[0031] Figure 6 It is a connection diagram of a corn harvester ear picking box in the prior art;

[0032] Figure 7 It is a cross-sectional schematic diagram of an ear picking box of an extremely narrow row spacing corn harvester provided by an embodiment of the present invention;

[0033] Figure 8 It is a schematic diagram of the connection relationship between the transmission shaft, the reel intermediate shaft and the reel output shaft provided by the embodiment of the present invention;

[0034] Fig. 9 It is a schematic diagram of the oblique transmission connection mode between the driven bevel gear of the reel and the active bevel gear of the reel provided by the embodiment of the present invention;

[0035] Description of the drawings: 1. Main housing; 2. Auxiliary housing; 4. Input shaft; 5. Sliding pin type safety clutch; 6. Input idler shaft assembly; 7. Transmission shaft assembly; 7-6. Reed plowing active bevel gear; 8. Reed plowing output shaft assembly; 8-3. Reed plowing output gear; 9. Pulling stem output shaft assembly; 10. Reed plowing intermediate shaft assembly; 10-3. Reed plowing driven bevel gear; 10-4. Reed plowing input gear; 11. Double-row chain. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "axial", "lateral", "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0038] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 an indirect connection 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 by specific circumstances.

[0039] Figure 1 The invention provides an extremely narrow row spacing corn harvester ear picking box, comprising:

[0040] The main box body 1 is fixedly connected to the cutting platform, and a transmission shaft 7, a straw-pulling output shaft 8 and a stalk-pulling roller output shaft 9 are arranged in the main box body 1;

[0041] The auxiliary housing 2 is fixed to the side of the main housing 1, and an input shaft 4 is installed in the auxiliary housing 2. The input shaft 4 is connected to the transmission shaft 7 through a transmission assembly;

[0042] The reeling intermediate shaft 10 is installed above the main housing 1, the axis of the reeling intermediate shaft 10 is parallel to the axis of the reeling output shaft 8, the axis of the reeling intermediate shaft 10 is obliquely arranged with the axis of the transmission shaft, the reeling intermediate shaft 10 is fixedly mounted with a reeling driven bevel gear 10-3 and a reeling input gear 10-4, and the reeling input gear 10-4 is fixedly connected to one side of the reeling driven bevel gear 10-3; the reeling output shaft 8 is fixedly mounted with a reeling output gear 8-3; the transmission shaft 7 is fixedly mounted with a reeling active bevel gear 7-6;

[0043] The reel output gear 8-3 is meshed with the reel input gear 10-4, and the reel driven bevel gear 10-3 in the reel intermediate shaft 10 is obliquely driven with the reel driving bevel gear 7-6 in the transmission shaft 7 to drive the reel output gear 8-3 to rotate;

[0044] There are multiple ear picking boxes installed on the harvesting platform, and the number of ear picking boxes can be adjusted to adapt to harvesting operations with different plant row spacings.

[0045] Furthermore, the angle of the oblique transmission between the driven bevel gear 10-3 and the active bevel gear 7-6 is 30-60 degrees.

[0046] Preferably, if Figure 8 As shown, the angle of the oblique transmission of the driven bevel gear 10-3 and the active bevel gear 7-6 is 45°, so that the intermediate shaft 10 of the plowing is raised obliquely upward and shares the length of the intermediate transmission shaft 7, making full use of the cutting platform space, reducing the length of the main box 1 by about 100mm, and increasing the space utilization rate by about 30%. Specifically, the large end module of the active bevel gear 7-6 is 3.75mm, the number of teeth is 19, and the large end module of the driven bevel gear 10-3 is 3.75mm, the number of teeth is 20.

[0047] like Figure 4 As shown, compared with the ear picking box adopting the orthogonal transmission and reeding system, the 45° oblique transmission is used to make the reeding intermediate shaft assembly 10 raised obliquely upward and share the length with the intermediate transmission shaft assembly 7, making full use of the header space, reducing the length of the main box by about 100mm, and increasing the space utilization by about 30%. The transmission reeding input gear 10-4 and the reeding output gear 8-3 are added, and the position of the sprocket 8-8 is raised, which not only widens the grain collection channel but also provides operating space for the installation of the double-row chain assembly 11.

[0048] Optionally, the transmission assembly includes an input idler shaft 6 installed in the auxiliary housing 2. The input idler shaft 6 is connected to the input shaft 4 through gear meshing transmission to change the input direction.

[0049] Preferably, a sliding pin type safety clutch 5 is further included, and the sliding pin type safety clutch 5 is connected to the input shaft 4 to provide input overload protection for the input shaft 4 .

[0050] Specifically, the length of the main box 1 ranges from 300 mm to 350 mm.

[0051] Specifically, the wall thickness of the main box body 1 ranges from 7 mm to 10 mm.

[0052] Preferably, a plurality of reed support ribs are provided on the main housing 1, and the plurality of reed support ribs are distributed in parallel and have a thickness of 8 mm to 10 mm. As an embodiment, three reed support ribs are distributed in parallel to strengthen the reed support seat and reduce casting deformation.

[0053] Specifically, the transmission shaft 7 passes through the main box body 1 along the length direction, and the multiple ear picking boxes are detachably connected through a double-row chain 11.

[0054] like Figure 6 and Figure 7 As shown, the spacing between the two extremely narrow row spacing corn ear picking boxes provided by the present invention can reach 350±5mm after being connected, which is a significant improvement compared to the spacing of 520±5mm between the two ear picking boxes in the prior art. This allows the cutting table of the corn harvester to mount more ear picking boxes, thereby improving the work efficiency of the harvester and having positive significance for promoting agricultural mechanization and modernization.

[0055] As an embodiment, the present invention further provides a method for installing the ear picking box of the extremely narrow row spacing corn harvester, comprising the following steps:

[0056] Determine the plant row spacing in the target corn field;

[0057] According to the determined plant row spacing, select an appropriate number of ear picking boxes;

[0058] By adjusting the relative positions between the selected number of ear picking boxes, the spacing between the ear picking boxes is matched with the plant row spacing of the target corn field;

[0059] A selected number of ear picking boxes are mounted on the cutting platform of the corn harvester, wherein the main box body 1 of each ear picking box is fixedly connected to the cutting platform, and the auxiliary box body 2 is fixed on the side of the main box body 1.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0061] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An extremely narrow row spacing corn harvester ear picking box, mounted on a cutting table of a corn harvester, comprising: A main housing (1) is fixedly connected to the cutting platform, and a transmission shaft (7), a straw-pulling output shaft (8) and a stalk-pulling roller output shaft (9) are arranged in the main housing (1); A sub-box body (2) is fixed to the side of the main box body (1), an input shaft (4) is installed in the sub-box body (2), and the input shaft (4) is connected to the transmission shaft (7) through a transmission assembly; A reeling intermediate shaft (10) is installed above the main housing (1), characterized in that the axis of the reeling intermediate shaft (10) is arranged in parallel with the axis of the reeling output shaft (8), the axis of the reeling intermediate shaft (10) is arranged obliquely with the axis of the transmission shaft, a reeling driven bevel gear (10-3) and a reeling input gear (10-4) are fixedly installed on the reeling intermediate shaft (10), and the reeling input gear (10-4) is fixedly connected to one side of the reeling driven bevel gear (10-3); the reeling output shaft (8) is fixedly installed with the reeling output gear (8-3); and the transmission shaft (7) is fixedly installed with the reeling active bevel gear (7-6); The reel output gear (8-3) is meshed with the reel input gear (10-4), and the reel driven bevel gear (10-3) in the reel intermediate shaft (10) and the reel active bevel gear (7-6) in the transmission shaft (7) are obliquely driven to drive the reel output gear (8-3) to rotate; There are multiple ear picking boxes installed on the cutting platform, and the number of ear picking boxes can be adjusted to adapt to harvesting operations with different plant row spacings.

2. The ear picking box for an extremely narrow row spacing corn harvester according to claim 1, characterized in that: The angle of the oblique transmission between the driven bevel gear (10-3) and the active bevel gear (7-6) is 30-60 degrees.

3. The ear picking box of the extremely narrow row spacing corn harvester according to claim 1, characterized in that: The angle of the oblique transmission between the driven bevel gear (10-3) of the reel plowing and the active bevel gear (7-6) of the reel plowing is 45 degrees.

4. The ear picking box of the extremely narrow row spacing corn harvester according to claim 1, characterized in that: The large end module of the active bevel gear (7-6) for plowing the reel is 3.75 mm, and the number of teeth is 19; the large end module of the driven bevel gear (10-3) for plowing the reel is 3.75 mm, and the number of teeth is 20.

5. The ear picking box of the extremely narrow row spacing corn harvester according to claim 1, characterized in that: The transmission assembly comprises an input idler shaft (6) installed in the auxiliary housing (2); the input idler shaft (6) is connected to the input shaft (4) through gear meshing transmission, and is used to change the input direction.

6. The ear picking box of the extremely narrow row spacing corn harvester according to claim 1, characterized in that: It also comprises a sliding pin type safety clutch (5), which is connected to the input shaft (4) and is used to provide input overload protection for the input shaft (4).

7. The ear picking box of the extremely narrow row spacing corn harvester according to claim 1, characterized in that: The length of the main box (1) ranges from 300 mm to 350 mm; the wall thickness of the main box (1) ranges from 7 mm to 10 mm.

8. The ear picking box for an extremely narrow row spacing corn harvester according to claim 1, characterized in that: The main box body (1) is provided with a plurality of reel support ribs for reinforcing the strength of the reel support seat; the plurality of reel support ribs are distributed in parallel and have a thickness of 8 mm to 10 mm.

9. The ear picking box for an extremely narrow row spacing corn harvester according to claim 1, characterized in that: The transmission shaft (7) passes through the main box body (1) along the length direction, and a plurality of ear picking boxes are detachably connected via a double-row chain (11).

10. A method for installing an ear picking box for an extremely narrow row spacing corn harvester according to any one of claims 1 to 9, characterized in that: The following steps are involved: Determine the plant row spacing in the target corn field; According to the determined plant row spacing, select an appropriate number of ear picking boxes; By adjusting the relative positions between the selected number of ear picking boxes, the spacing between the ear picking boxes is matched with the plant row spacing of the target corn field; A selected number of ear picking boxes are mounted on the cutting platform of the corn harvester, wherein the main box body of each ear picking box is fixedly connected to the cutting platform, and the auxiliary box body is fixed on the side of the main box body.

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