An anti-overload and flexible adjustment non-parallel corn harvesting header box
By incorporating positioning grooves, positioning blocks, and adjustment components into the header box of a corn harvester, the problems of unstable drive shaft connection and cumbersome installation have been solved, achieving stable connection and flexible adjustment of the drive shaft and avoiding overload.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIFANG JINGKE IND & TRADE
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-02
AI Technical Summary
Existing corn harvester header boxes suffer from problems such as significant power transmission waste, cumbersome installation, and inability to be arranged in a straight line, leading to frequent overloading.
The design includes a first cutter box body and a second cutter box body. The drive shaft is initially positioned by the positioning groove and the positioning block. The adjustment component drives the rack to move. The gear and the insert rod are used to achieve a stable connection of the drive shaft. The connection stability is ensured by the bolt limit.
It achieves a stable connection of the drive shaft, preventing it from disengaging, allows for easy adjustment of the number of cutter boxes according to actual conditions, avoids overload, and simplifies the installation process.
Smart Images

Figure CN224306393U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of corn harvester technology, and in particular to a non-row corn harvesting header box that is anti-overload and flexibly adjustable. Background Technology
[0002] A corn harvester is an agricultural implement used to harvest corn stalks when corn is mature or nearly mature, according to agronomic requirements. It is a new type of agricultural machinery developed to address the development of new energy sources and reduce the labor intensity of farmers. It is an inexpensive agricultural machine suitable for widespread use in rural areas, and can be equipped with various tools to harvest corn stalks.
[0003] Existing high-efficiency corn harvester header boxes are composed of multiple units, with the first unit having high power and the last unit having low power, resulting in significant power transmission waste. Furthermore, they cannot be installed in a straight line, and connecting multiple units is quite cumbersome. Therefore, there is still room for improvement. In view of this, we propose a non-row corn harvester header box that is anti-overload and flexibly adjustable. Utility Model Content
[0004] In order to solve the problems mentioned in the background art, this application provides an overload-proof and flexibly adjustable non-row corn harvesting header box.
[0005] This application provides an overload-resistant and flexibly adjustable non-row corn harvesting header box, which adopts the following technical solution: including:
[0006] A first cutting table box body and a second cutting table box body, wherein the first cutting table box body is provided with a first drive shaft and the second cutting table box body is provided with a second drive shaft, a fixing ring is fixedly installed on the outer side wall of the first drive shaft, and one end of the second drive shaft is disposed in the fixing ring;
[0007] Multiple insertion holes are provided, and multiple second cutting table boxes are opened on the outer side wall of the second drive shaft. Multiple sliding grooves are provided on the outer side wall of the fixed ring. A rack is slidably installed in each of the multiple sliding grooves. A plug rod is fixedly installed at one end of each of the multiple racks. The multiple plug rods are respectively movably connected to the multiple insertion holes.
[0008] An adjustment component is disposed within a fixed ring and is used to drive multiple racks to move;
[0009] Both the first and second cutter box bodies are equipped with multiple gear shafts. When the first and second drive shafts on the first and second cutter box bodies are connected, the first and second drive shafts are initially positioned and installed by the positioning groove and positioning block. When the positioning groove and positioning block are engaged, the first and second drive shafts will be initially connected together. At this time, the adjusting rod is pushed to drive the gear ring to rotate. When the gear ring rotates, it will drive multiple rotating shafts to rotate through multiple second gears. When the multiple rotating shafts rotate, they will drive multiple racks to move through multiple first gears, and multiple insert rods will be engaged in multiple insert holes. At this time, the position between the first and second drive shafts will be locked, so that the first and second drive shafts are limited together.
[0010] Optionally, the adjustment assembly includes multiple rotating shafts, which are rotatably mounted inside the fixed ring. Each of the multiple rotating shafts has a first gear fixedly mounted on its outer side wall. The multiple first gears mesh with multiple racks respectively. When the multiple rotating shafts rotate, the multiple first gears drive the multiple racks to move, thereby fitting multiple insert rods into multiple insertion holes. At this time, the position between the first drive shaft and the second drive shaft is locked, so that the first drive shaft and the second drive shaft are limited together.
[0011] Optionally, the adjusting assembly further includes a gear ring, which is rotatably mounted on the inner side wall of the fixed ring. Second gears are fixedly mounted on the outer side walls of the plurality of rotating shafts. The plurality of second gears mesh with the gear ring, and when the gear ring rotates, it drives the plurality of rotating shafts to rotate through the plurality of second gears.
[0012] Optionally, the outer side wall of the fixed ring is provided with a top groove, and an adjusting rod is fixedly installed on the outer side wall of the toothed ring. The top end of the adjusting rod passes through the top groove and extends to the outside of the top groove. Pushing the adjusting rod will drive the toothed ring to rotate.
[0013] Optionally, a threaded sleeve is fixedly installed on the outer wall of the fixed ring. The threaded sleeve is threadedly connected to the adjusting rod with the same bolt. After the first drive shaft and the second drive shaft are connected, the bolt is threaded into the threaded hole on the threaded sleeve and the adjusting rod, which can limit the adjusting rod, thereby limiting the toothed ring and making the connection between the first drive shaft and the second drive shaft more stable.
[0014] Optionally, a positioning groove is provided at one end of the first drive shaft, and a positioning block is fixedly installed at one end of the second drive shaft. The positioning block is movably connected to the positioning groove, and the first drive shaft and the second drive shaft are initially positioned and installed through the positioning groove and the positioning block.
[0015] Optionally, the positioning groove and the rectangular groove, and the positioning block are rectangular structures. When the positioning groove and the positioning block are fitted together, the first drive shaft and the second drive shaft will be initially connected together.
[0016] In summary, this application includes the following beneficial technical effects:
[0017] 1. In this utility model, when the first drive shaft and the second drive shaft on the first cutter box body and the second cutter box body are connected, the first drive shaft and the second drive shaft are initially positioned and installed by the positioning groove and the positioning block. When the positioning groove and the positioning block are engaged, the first drive shaft and the second drive shaft will be initially connected together. At this time, the adjusting rod is pushed to drive the gear ring to rotate. When the gear ring rotates, it will drive multiple rotating shafts to rotate through multiple second gears. When the multiple rotating shafts rotate, they will drive multiple racks to move through multiple first gears, and multiple insert rods will be engaged in multiple insert holes. At this time, the position between the first drive shaft and the second drive shaft will be locked, so that the first drive shaft and the second drive shaft are limited together.
[0018] 2. In order to prevent the first drive shaft from disengaging from the second drive shaft, after the first drive shaft and the second drive shaft are connected, the bolt is threaded into the threaded hole on the threaded sleeve and the adjusting rod. This can limit the adjusting rod, thereby limiting the toothed ring, making the connection between the first drive shaft and the second drive shaft more stable. Using this method, multiple corn harvesting header boxes can be connected and installed according to the actual situation, making it convenient to adjust the number of corn harvesting header boxes that need to be connected. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;
[0020] Figure 2 This is a schematic diagram of the fixed ring structure in an embodiment of this application;
[0021] Figure 3 This is a schematic diagram of the top groove structure in an embodiment of this application;
[0022] Figure 4 This is a schematic diagram of the socket structure in an embodiment of this application;
[0023] Figure 5 This is a schematic diagram of the internal structure of the fixed ring in an embodiment of this application.
[0024] Reference numerals in the attached drawings: 1. First cutting table body; 2. Second cutting table body; 3. First drive shaft; 4. Second drive shaft; 5. Fixing ring; 6. Insertion hole; 7. Slide groove; 8. Rack; 9. Insert rod; 10. Rotating shaft; 11. First gear; 12. Gear ring; 13. Second gear; 14. Top groove; 15. Adjusting rod; 16. Positioning groove; 17. Threaded sleeve; 18. Bolt; 19. Gear shaft; 20. Positioning block. Detailed Implementation
[0025] The following is in conjunction with the appendix Figure 1-5This application will be described in further detail.
[0026] This application discloses an overload-resistant and flexibly adjustable non-row corn harvesting header box. For example... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, it includes:
[0027] The first cutting platform box body 1 and the second cutting platform box body 2 are provided with a first drive shaft 3 on the first cutting platform box body 1 and a second drive shaft 4 on the second cutting platform box body 2. A fixing ring 5 is fixedly installed on the outer side wall of the first drive shaft 3 and one end of the second drive shaft 4 is set in the fixing ring 5.
[0028] Multiple insertion holes 6, multiple second cutting table box bodies 2 are opened on the outer side wall of the second drive shaft 4, multiple sliding grooves 7 are opened on the outer side wall of the fixing ring 5, and racks 8 are slidably installed in each of the multiple sliding grooves 7. Insert rods 9 are fixedly installed at one end of each of the multiple racks 8, and the multiple insert rods 9 are respectively movably connected to the multiple insertion holes 6.
[0029] An adjustment component is disposed within the fixed ring 5 and is used to drive multiple racks 8 to move.
[0030] Both the first cutter box body 1 and the second cutter box body 2 are equipped with multiple gear shafts 19. When the first drive shaft 3 and the second drive shaft 4 on the first cutter box body 1 and the second cutter box body 2 are connected, the first drive shaft 3 and the second drive shaft 4 are initially positioned and installed by the positioning groove 16 and the positioning block 20. When the positioning groove 16 and the positioning block 20 are engaged, the first drive shaft 3 and the second drive shaft 4 will be initially connected together. At this time, the adjusting rod 15 is pushed to drive the gear ring 12 to rotate. When the gear ring 12 rotates, it will drive multiple rotating shafts 10 to rotate through multiple second gears 13. When multiple rotating shafts 10 rotate, they will drive multiple racks 8 to move through multiple first gears 11, and put multiple insert rods 9 into multiple insert holes 6. At this time, the position between the first drive shaft 3 and the second drive shaft 4 will be locked, so that the first drive shaft 3 and the second drive shaft 4 are limited together.
[0031] Please see Figure 2 and Figure 5 The adjustment assembly includes multiple rotating shafts 10, which are rotatably mounted inside one side of the fixed ring 5. Each of the multiple rotating shafts 10 has a first gear 11 fixedly mounted on its outer side wall. The multiple first gears 11 mesh with multiple racks 8 respectively. When the multiple rotating shafts 10 rotate, the multiple first gears 11 will drive the multiple racks 8 to move, and the multiple insert rods 9 will be sleeved in the multiple insert holes 6. At this time, the position between the first drive shaft 3 and the second drive shaft 4 will be locked, so that the first drive shaft 3 and the second drive shaft 4 are limited together.
[0032] Please see Figure 3 A threaded sleeve 17 is fixedly installed on the outer wall of the fixed ring 5. The threaded sleeve 17 and the adjusting rod 15 are connected by the same bolt 18. After the first drive shaft 3 and the second drive shaft 4 are connected, the bolt 18 is threaded into the threaded hole on the threaded sleeve 17 and the adjusting rod 15. This can limit the adjusting rod 15, thereby limiting the toothed ring 12 and making the connection between the first drive shaft 3 and the second drive shaft 4 more stable.
[0033] Please see Figure 2 and Figure 4 The first drive shaft 3 has a positioning groove 16 at one end, and the second drive shaft 4 has a positioning block 20 fixedly installed at one end. The positioning block 20 is movably connected to the positioning groove 16, and the first drive shaft 3 and the second drive shaft 4 are initially positioned and installed through the positioning groove 16 and the positioning block 20.
[0034] Please see Figure 2 and Figure 5 The adjustment assembly also includes a gear ring 12, which is rotatably mounted on the inner side wall of the fixed ring 5. Second gears 13 are fixedly mounted on the outer side walls of multiple rotating shafts 10. The multiple second gears 13 mesh with the gear ring 12. When the gear ring 12 rotates, it will drive the multiple rotating shafts 10 to rotate through the multiple second gears 13.
[0035] Please see Figure 3 The outer side wall of the fixed ring 5 has a top groove 14, and the outer side wall of the toothed ring 12 is fixedly installed with an adjusting rod 15. The top end of the adjusting rod 15 passes through the top groove 14 and extends to the outside of the top groove 14. Pushing the adjusting rod 15 will drive the toothed ring 12 to rotate.
[0036] Please see Figure 2 and Figure 4 The positioning groove 16 and the rectangular groove, and the positioning block 20 are rectangular structures. When the positioning groove 16 and the positioning block 20 are fitted together, the first drive shaft 3 and the second drive shaft 4 will be initially connected together.
[0037] The implementation principle of the non-row corn harvesting header box that is anti-overload and flexibly adjustable according to the embodiment of this application is as follows: When the first drive shaft 3 and the second drive shaft 4 on the first header box body 1 and the second header box body 2 are connected, the first drive shaft 3 and the second drive shaft 4 are initially positioned and installed by the positioning groove 16 and the positioning block 20. When the positioning groove 16 and the positioning block 20 are engaged, the first drive shaft 3 and the second drive shaft 4 will be initially connected together. At this time, the adjusting rod 15 is pushed to drive the gear ring 12 to rotate. When the gear ring 12 rotates, it will drive multiple rotating shafts 10 to rotate through multiple second gears 13. When multiple rotating shafts 10 rotate, they will drive multiple racks 8 to move through multiple first gears 11, and multiple insert rods 9 will be engaged in multiple insert holes 6. At this time, the position between the first drive shaft 3 and the second drive shaft 4 will be locked, so that the first drive shaft 3 and the second drive shaft 4 are limited together.
[0038] To prevent the first drive shaft 3 from disengaging from the second drive shaft 4, after the first drive shaft 3 and the second drive shaft 4 are connected, the bolt 18 is threaded into the threaded hole on the threaded sleeve 17 and the adjusting rod 15. This can limit the adjusting rod 15, thereby limiting the toothed ring 12, making the connection between the first drive shaft 3 and the second drive shaft 4 more stable. Using this method, multiple corn harvesting header boxes can be connected and installed according to the actual situation, making it convenient to adjust the number of corn harvesting header boxes that need to be connected.
[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A non-row corn harvesting header box that is anti-overload and flexibly adjustable, characterized in that, include: The first cutting platform body (1) and the second cutting platform body (2) are provided with a first drive shaft (3) on the first cutting platform body (1) and a second drive shaft (4) on the second cutting platform body (2). A fixing ring (5) is fixedly installed on the outer side wall of the first drive shaft (3) and one end of the second drive shaft (4) is set in the fixing ring (5). Multiple insertion holes (6), multiple second cutting table box bodies (2) are opened on the outer side wall of the second drive shaft (4), multiple sliding grooves (7) are opened on the outer side wall of the fixing ring (5), multiple racks (8) are slidably installed in the multiple sliding grooves (7), and a plug rod (9) is fixedly installed at one end of the multiple racks (8), and the multiple plug rods (9) are respectively movably connected to the multiple insertion holes (6); An adjustment component is disposed within a fixed ring (5) and is used to drive multiple racks (8) to move. Both the first cutter box body (1) and the second cutter box body (2) are provided with multiple gear shafts (19).
2. The anti-overload and flexibly adjustable non-row corn harvesting header box according to claim 1, characterized in that: The adjustment assembly includes multiple rotating shafts (10), which are rotatably mounted on one side of the inner side of the fixed ring (5). A first gear (11) is fixedly mounted on the outer side wall of each of the multiple rotating shafts (10), and the multiple first gears (11) mesh with multiple racks (8) respectively.
3. The anti-overload and flexibly adjustable non-row corn harvesting header box according to claim 2, characterized in that: The adjustment assembly also includes a gear ring (12), which is rotatably mounted on the inner side wall of the fixed ring (5). A second gear (13) is fixedly mounted on the outer side wall of each of the plurality of rotating shafts (10), and the plurality of second gears (13) mesh with the gear ring (12).
4. The anti-overload and flexibly adjustable non-row corn harvesting header box according to claim 3, characterized in that: The outer side wall of the fixed ring (5) is provided with a top groove (14), and the outer side wall of the toothed ring (12) is fixedly installed with an adjusting rod (15). The top end of the adjusting rod (15) passes through the top groove (14) and extends to the outside of the top groove (14).
5. The anti-overload and flexibly adjustable non-row corn harvesting header box according to claim 4, characterized in that: A threaded sleeve (17) is fixedly installed on the outer wall of the fixed ring (5), and the threaded sleeve (17) is threadedly connected to the adjusting rod (15) by the same bolt (18).
6. The anti-overload and flexibly adjustable non-row corn harvesting header box according to claim 1, characterized in that: The first drive shaft (3) has a positioning groove (16) at one end, and the second drive shaft (4) has a positioning block (20) fixedly installed at one end. The positioning block (20) is movably connected to the positioning groove (16).
7. The anti-overload and flexibly adjustable non-row corn harvesting header box according to claim 6, characterized in that: The positioning groove (16) and the rectangular groove, and the positioning block (20) are rectangular structures.