Unit group three-section split type coarse cereal header
By dividing the grain harvester into three parts—the main frame, the ear-picking box, and the separate ear-picking frame—the problem of high maintenance costs caused by complex installation in existing technologies is solved, enabling rapid disassembly and repair, and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 聊城市厚德机电有限公司
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-17
AI Technical Summary
The existing grain harvesting platform has a complex structure for picking frames and picking boxes, which are not easy to disassemble and reassemble, resulting in high maintenance costs and affecting production efficiency.
Design a modular three-section split-type grain harvester. The main frame of the harvester, the ear-picking box, and the split ear-picking frame can be separated into three parts and fixed by bolts, simplifying the installation and disassembly process.
It enables rapid disassembly, assembly, and repair of the cutting table, reducing maintenance costs and improving production efficiency and effectiveness.
Smart Images

Figure CN224124693U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of agricultural machinery technology, specifically to a three-section modular grain cutting platform. Background Technology
[0002] With the continuous increase in the planting area of coarse grains in my country in recent years, the demand for coarse grain harvesters by growers has also increased. Therefore, the user experience is also an important factor affecting growers' choices. As an important component of coarse grain harvesters, the structure of the coarse grain header has a great impact on the user experience.
[0003] As important operating components within the header, the ear-picking frame and ear-picking box require disassembly, assembly, maintenance, and repair after a certain period of operation. In existing technologies, the installation structure of the ear-picking frame and ear-picking box in grain headers is relatively complex, making them difficult to disassemble and assemble, inconvenient to use, and resulting in high maintenance costs, which affects production efficiency. Utility Model Content
[0004] This utility model provides a unit-group three-section split grain cutting platform, which solves the problem of cutting platforms being difficult to repair and maintain in the above-mentioned background technology.
[0005] A unit-group three-section split miscellaneous grain harvester includes a main frame of the harvester, and a grain picking box installation part is provided on the front side of the main frame of the harvester.
[0006] The picking box has multiple through bolt holes;
[0007] Multiple picking boxes are detachably installed on the front side of the picking box mounting section; the main frame of the cutting platform is connected to the outermost picking box through a transmission connection, and the picking boxes are connected to each other through a transmission connection.
[0008] Each of the aforementioned stalk-picking boxes is equipped with a corresponding split-type stalk-picking frame;
[0009] The split ear-picking frame and ear-picking box are bolted to the ear-picking box mounting part.
[0010] Furthermore, the ear-picking box includes a box shell, an input horizontal shaft, an integrated output shaft, and an output sprocket; the box shell has a through hole; the input horizontal shaft is installed horizontally inside the box shell, and the input sprocket is installed on the input horizontal shaft outside the box shell.
[0011] Transmission components are installed on both sides of the input horizontal shaft inside the housing;
[0012] The transmission assembly consists of a bevel gear mounted on the input horizontal shaft, a first bearing mounted outside the bevel gear, and the outer ring of the first bearing contacting the housing. An integrated wheel and axle output shaft meshes with the bevel gear, and the integrated wheel and axle output shaft reverses the power transmission direction of the input horizontal shaft. The shaft of the integrated wheel and axle output shaft extends out of the housing and is mounted with a second bearing via a bearing seat. An output sprocket is also connected to the shaft.
[0013] At the first bearing, a retaining ring and an oil seal are installed; at both ends of the housing, protective plates are installed respectively.
[0014] The outermost picking box has a driven sprocket installed on one side of the spline. The driven sprocket is connected to the main frame of the header for transmission. The input sprockets of the other picking boxes are thin-plate drive sprockets. The thin-plate drive sprockets between the picking boxes are in close contact with each other, and a drive chain is sleeved on the outside of the thin-plate drive sprockets that are in contact with each other.
[0015] Furthermore, the casing is made of aluminum alloy, and an oil filling hole is provided on the casing, with an oil filling hole plug installed.
[0016] Furthermore, mounting platforms are formed at the four corners of the casing, and through holes are made on the mounting platforms.
[0017] Furthermore, the bearing housing is divided into a high-sprocket bearing housing and a low-sprocket bearing housing; a nut is installed on the upper end of the shaft.
[0018] Furthermore, the bevel gear and the output sprocket are respectively mounted via flat keys.
[0019] Furthermore, the second bearing is also equipped with a retaining ring for the bore and an oil seal.
[0020] Furthermore, the output sprocket is divided into sprocket one and sprocket two, which are respectively connected to the reaping chain one and reaping chain two on the split ear-picking frame.
[0021] Furthermore, a divider is installed on the upper part of the split ear-picking frame.
[0022] Furthermore, the divider includes a middle divider and an edge divider, with the edge divider mounted on the outermost split ear-picking frame.
[0023] The beneficial effects of this utility model are:
[0024] This utility model provides a three-section split-type miscellaneous grain harvester. Because the ear-picking box is provided with a through hole, it can be installed together with the split ear-picking frame. The harvester can be disassembled into three parts: the main frame of the harvester, the ear-picking box, and the split ear-picking frame, achieving the effect of rapid disassembly and assembly. The split ear-picking frame and the ear-picking box are fixedly installed on the main frame of the harvester with bolts. During maintenance, the split ear-picking frame and the ear-picking box can be quickly removed for repair and maintenance, and can be quickly reinstalled after maintenance. This reduces maintenance and repair time, lowers maintenance costs, and improves production efficiency and benefits. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the exploded structure of this utility model;
[0027] Figure 3 This is a schematic diagram of the structure of this utility model;
[0028] Figure 4 This is a schematic diagram of the ear-picking box structure of this utility model;
[0029] Figure 5 This is a schematic diagram of the connection structure of the picking box of this utility model;
[0030] Figure 6 This is a cross-sectional view of the ear-picking box of this utility model;
[0031] Figure 7 This is a schematic diagram of the split-type ear-picking frame structure of this utility model;
[0032] Figure 8 This is a schematic diagram of the split-type ear-picking frame structure of this utility model;
[0033] In the diagram: 1. Header frame; 1.1. Picking box mounting section; 2. Picking box; 2.1. Picking box bolt holes; 2.2. Drive shaft; 2.3. Spline; 2.4. Input sprocket; 2.5. Thin-plate drive sprocket; 2.6. Drive chain; 2.7. Sprocket one; 2.8. Sprocket two; 3. Split picking frame; 3.1. Reeling chain one; 3.2. Reeling chain two; 4. Bolt; 5. Middle divider; 6. Edge divider 7.1 Input shaft; 7.2 Integrated wheel and axle output shaft; 7.3 Bevel gear; 7.4 First bearing; 7.5 Second bearing; 7.6 Retaining ring one; 7.7 Oil seal one; 7.8 Protective plate; 7.9 Oil filling hole plug; 7.10 High-strength sprocket bearing housing; 7.11 Low-strength sprocket bearing housing; 7.12 Flat key; 7.13 Retaining ring two; 7.14 Oil seal two; 7.15 Nut; Detailed Implementation
[0034] The technical solution of this utility model will be further explained and described below through specific embodiments.
[0035] Example 1
[0036] Referring to the attached drawings, this utility model provides a unit group three-section split miscellaneous grain harvester, including a harvester main frame 1, and a harvesting box mounting part 1.1 is provided on the front side of the harvester main frame 1;
[0037] The picking box 2 is provided with multiple through bolt holes 2.1;
[0038] Multiple picking boxes 2 are detachably installed on the front side of the picking box mounting part 1.1; the main frame of the cutting table 1 is connected to the outermost picking box 2 through a transmission, and the picking boxes 2 are connected to each other through a transmission.
[0039] Each of the stalk-picking boxes 2 is equipped with a corresponding split stalk-picking frame 3;
[0040] The split ear-picking frame 3 and ear-picking box 2 are mounted on the ear-picking box mounting part 1.1 by bolts 4.
[0041] The split ear-picking frame 3 is equipped with a divider on its upper part. The divider includes a middle divider 5 and an edge divider 6, with the edge divider 6 installed on the outermost split ear-picking frame 3.
[0042] Example 2
[0043] In this utility model, the ear-picking box 2 includes a box shell, an input horizontal shaft 7.1, an integrated wheel and axle output shaft 7.2, and an output sprocket 2.4; mounting platforms are formed at the four corners of the box shell, and through holes are opened on the mounting platforms for ear-picking box bolt holes 2.1; the input horizontal shaft 7.1 is installed horizontally inside the box shell, and an input sprocket is installed on the input horizontal shaft 7.1 outside the box shell; the box shell is made of aluminum alloy, and an oil filling hole is opened on the box shell, and an oil filling hole plug 7.9 is installed.
[0044] Transmission components are installed on both sides of the input horizontal shaft 7.1 inside the housing;
[0045] The transmission assembly comprises a bevel gear 7.3 mounted on an input horizontal shaft 7.1, a first bearing 7.4 mounted outside the bevel gear 7.3, and the outer ring of the first bearing 7.4 contacting the housing. An integrated output shaft 7.2 meshes with the bevel gear 7.3 and reverses the power transmission direction of the input horizontal shaft 7.1. The shaft of the integrated output shaft 7.2 extends out of the housing and is fitted with a second bearing 7.5 via a bearing seat. The bearing seat is divided into a high-speed sprocket bearing seat 7.10 and a low-speed sprocket bearing seat 7.10. The shaft body has a bearing housing 7.11; a nut 7.15 is installed on the upper end of the shaft body; a retaining ring 7.13 and an oil seal 7.13 are also installed on the second bearing 7.5; an output sprocket is also connected to the shaft body; the output sprocket is divided into sprocket 2.7 and sprocket 2.8, which are respectively connected to the stalk chain 3.1 and stalk chain 3.2 on the split ear-picking frame 3; the bevel gear 7.3 is installed on the output sprocket via a flat key 7.12.
[0046] At the first bearing 7.4, a retaining ring 7.6 and an oil seal 7.7 are installed; at both ends of the housing, protective plates 7.8 are installed respectively.
[0047] A driven sprocket 2.4 is installed on the spline 2.3 on one side of the outermost picking box 2. The driven sprocket 2.4 is connected to the main frame 1 of the header for transmission. The input sprockets of the other picking boxes 2 are thin-plate drive sprockets 2.5. The thin-plate drive sprockets 2.5 between the picking boxes 2 are in close contact with each other, and a transmission chain 2.6 is sleeved on the outside of the thin-plate drive sprockets 2.5 that are in contact with each other.
[0048] When in use, the cutting platform can be disassembled into three sections: the main frame 1, the picking box 2, and the separate picking frame 3. The picking box 2 and the separate picking frame 3 are fixed to the main frame 1 of the cutting platform by bolts 4, which facilitates disassembly and installation. The mounting hole of the picking box 2 is a through hole, which can be installed in both the forward and reverse directions, thus reducing production and installation costs.
Claims
1. A unit group three-section split type miscellaneous grain header, characterized in that, It includes a header frame, and a harvesting box mounting section is provided on the front side of the header frame; The picking box has multiple through bolt holes; Multiple picking boxes are detachably installed on the front side of the picking box mounting section; the main frame of the cutting platform is connected to the outermost picking box through a transmission connection, and the picking boxes are connected to each other through a transmission connection. Each of the aforementioned stalk-picking boxes is equipped with a corresponding split-type stalk-picking frame; The split ear-picking frame and ear-picking box are bolted to the ear-picking box mounting part.
2. The unit group three-section split type miscellaneous grain header according to claim 1, characterized in that, The ear-picking box includes a box shell, an input horizontal shaft, an integrated output shaft, and an output sprocket; the box shell has a through hole; the input horizontal shaft is installed horizontally inside the box shell, and the input sprocket is installed on the input horizontal shaft outside the box shell; Transmission components are installed on both sides of the input horizontal shaft inside the housing; The transmission assembly consists of a bevel gear mounted on the input horizontal shaft, a first bearing mounted outside the bevel gear, and the outer ring of the first bearing contacting the housing. An integrated wheel and axle output shaft meshes with the bevel gear, and the integrated wheel and axle output shaft reverses the power transmission direction of the input horizontal shaft. The shaft of the integrated wheel and axle output shaft extends out of the housing and is mounted with a second bearing via a bearing seat. An output sprocket is also connected to the shaft. At the first bearing, a retaining ring and an oil seal are installed; at both ends of the housing, protective plates are installed respectively. The outermost picking box has a driven sprocket installed on one side of the spline. The driven sprocket is connected to the main frame of the header for transmission. The input sprockets of the other picking boxes are thin-plate drive sprockets. The thin-plate drive sprockets between the picking boxes are in close contact, and a drive chain is sleeved on the outside of the thin-plate drive sprockets that are in contact with each other.
3. The unit group three-section split type miscellaneous grain header according to claim 2, characterized in that, The casing is made of aluminum alloy, and an oil filling hole is provided on the casing, with an oil filling hole plug installed.
4. The unit group three-section split type miscellaneous grain header according to claim 2, characterized in that, Mounting platforms are formed at the four corners of the casing, and through holes are made on the mounting platforms.
5. The unit group three-section type miscellaneous grain header according to claim 2, characterized in that, The bearing housing is divided into a high sprocket bearing housing and a low sprocket bearing housing; a nut is installed on the upper end of the shaft.
6. The unit group three-section split type miscellaneous grain header according to claim 2, characterized in that, The bevel gear and the output sprocket are respectively mounted by a flat key.
7. The unit group three-section type miscellaneous grain header according to claim 2, characterized in that, The second bearing is also equipped with a retaining ring for the bore and an oil seal.
8. The unit group three-section type miscellaneous grain header according to claim 6, characterized in that, The output sprocket is divided into sprocket one and sprocket two, which are respectively connected to the stalk-picking chain one and stalk-picking chain two on the split ear-picking frame.
9. The unit group three-section split type miscellaneous grain header according to claim 1, characterized in that, The split ear-picking frame is equipped with a divider on its upper part.
10. The unit-group three-section split-type grain harvester according to claim 9, characterized in that, The divider includes a middle divider and an edge divider, with the edge divider installed on the outermost split ear-picking frame.