Foldable corn harvesting header
By designing a foldable corn harvesting header, which utilizes hydraulic cylinders and folding shafts to achieve automatic folding, the problems of large footprint and inconvenient transportation of corn harvesting headers are solved, improving ease of operation and economy.
Patent Information
- Application Number
- CN202520080614.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-14
AI Technical Summary
The existing corn harvesting headers have a fixed structure, which results in them occupying a large space when not in operation, making transportation inconvenient and costly.
Design a foldable corn harvesting header that automatically folds using a hydraulic cylinder and a folding shaft, while a shaft connector ensures the continuity of the transmission connection.
It enables convenient folding of the corn harvesting header, reducing the floor space required and lowering transportation difficulty and costs.
Smart Images
Figure CN223681556U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to corn harvester technical field especially, it relates to a kind of foldable corn harvesting header. BACKGROUND
[0002] With the continuous development of agricultural mechanization, as an important food crop, the planting area of corn is expanding year by year worldwide. In order to improve the harvesting efficiency of corn, corn harvester has gradually become an important equipment in agricultural production, especially corn harvesting header (also known as header, harvesting head) as the key component of corn harvester, plays a vital role. The traditional corn harvesting header is usually composed of multiple blades, feeding devices and matching devices, etc. Its function is to cut and collect mature corn ears from corn stalks, while cutting or discharging straw to improve harvesting efficiency.
[0003] The existing corn harvesting header is generally designed as a fixed structure, which has a large volume in working state, resulting in the need for a large storage space when not in operation. In addition, due to the width and size of the harvesting head, special transportation tools are often needed during transportation, increasing logistics costs and operation preparation time.
[0004] To solve the above problems, we propose a foldable corn harvesting header. CONTENT OF THE UTILITY MODEL
[0005] The utility model proposes the following technical scheme in view of the problems in the prior art:
[0006] A foldable corn harvesting header, comprising a main frame, a plurality of horizontally arranged headers are provided in front of the main frame, the header further comprises:
[0007] A hydraulic cylinder, an adapter and a folding shaft, the hydraulic cylinder is rotatably connected to the top of the main frame, the main frame is divided into left, middle and right three parts transversely, and the folding shaft is arranged between adjacent two parts, and the adapter connects adjacent two parts.
[0008] The header further comprises a shaft adapter, the shaft adapter comprises a fixed disc and a movable disc, and the shaft adapter is used for driving connection of the header transmission shaft during folding.
[0009] As a preferred embodiment of the above technical scheme, the header transmission shaft comprises a header chain shaft, and the header chain shaft and the folding shaft are in the same vertical plane position for division.
[0010] The dividing part inner cavity of the header chain rotating shaft is fixedly connected with a stop disc, and the outer side center part of the stop disc in the inner cavity is fixedly connected with a discharge edge outer key shaft and a discharge middle outer key shaft.
[0011] As the preferred technical scheme, the tail end of the positioning frame is rotatably sleeved on the periphery of the cutting part.
[0012] As the preferred technical scheme, the center part of the fixed disc and the movable disc is provided with an inner spline groove, and the inner spline groove is matched with the discharge edge outer key shaft, the discharge middle outer key shaft, the header edge outer key shaft and the header middle outer key shaft.
[0013] As the preferred technical scheme, the side of the fixed disc close to the movable disc is provided with a clamping groove, and the side of the movable disc close to the fixed disc is integrally connected with a clamping convex, and the clamping convex is matched with the clamping groove.
[0014] As the preferred technical scheme, the side of the movable disc away from the fixed disc is fixedly connected with a connecting disc, the connecting disc is provided with a ring groove, the inside of the ring groove is provided with a spring, and the side of the ring groove away from the clamping convex is radially slidably connected with a sliding cover.
[0015] The corn harvesting header can be folded and unfolded conveniently, and the corn harvesting header occupies a small area when not working.
[0016] 1. When the corn harvesting header is folded, the hydraulic cylinder drives the left and right main frames and the front several headers to be folded upward as a whole around the folding shaft under the connection of the adapter, until the corn harvesting header is folded into the state as shown in the drawing, and the whole folding process does not need manual operation, which is simple and convenient, and solves the problems of large area occupation and inconvenient transportation of the corn harvesting header when not working. Figure 2
[0017] 2. The shaft adapter is arranged to realize the transmission connection of the transmission shaft of the corn harvesting header before and after folding, which is simple in structure and convenient to use. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 Fig. 1 shows a three-dimensional structure schematic diagram of an unfolded corn harvesting header according to an embodiment of the present application;
[0019] Figure 2 Fig. 2 shows a three-dimensional structure schematic diagram of a folded corn harvesting header according to an embodiment of the present application;
[0020] Figure 3 Fig. 3 shows an enlarged view of A in Fig. 1; Figure 2
[0021] Figure 4 It is shown that the embodiment of a foldable corn harvesting header folding state side view;
[0022] Figure 5 It is shown that the embodiment of a foldable corn harvesting header middle shaft connector structure schematic diagram;
[0023] Figure 6 It is shown that the embodiment of a foldable corn harvesting header middle fixed disc and movable disc to be spliced state diagram;
[0024] Figure 7 It is shown that the embodiment of a foldable corn harvesting header middle movable disc exploded view.
[0025] In the figure: 10, the main frame; 20, the header; 21, the header edge outer key shaft; 22, the header middle outer key shaft; 31, the hydraulic cylinder; 32, the adapter; 33, the folding shaft; 41, the discharge edge outer key shaft; 42, the discharge middle outer key shaft; 50, the positioning frame; 60, the stop disc; 70, the shaft connector; 71, the fixed disc; 72, the movable disc; 700, the inner spline groove; 711, the clamping groove; 721, the clamping convex; 723, the connecting disc; 7230, the ring groove; 724, the sliding cover; 725, the spring. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the present application will be described clearly and completely below in combination with embodiments.
[0027] EMBODIMENT
[0028] As Figures 1-2 shown, a foldable corn harvesting header, comprising a main frame 10, the front of the main frame 10 is provided with a plurality of horizontal transverse arrangement of the header 20, the header further comprises:
[0029] The hydraulic cylinder 31, the adapter 32 and the folding shaft 33, the hydraulic cylinder 31 is rotatably connected to the top of the main frame 10, the main frame 10 is transversely divided into left, middle and right three parts, and the folding shaft 33 is arranged between the adjacent two parts, and the adapter 32 connects the adjacent two parts;
[0030] When the corn harvesting header is folded, the hydraulic cylinder 31 drives the left and right parts of the main frame 10 and the front of the several headers 20 to be folded upward as a whole under the connection of the adapter 32, until it is folded into the state as Figure 2 shown, the whole folding process does not need manual operation, simple and convenient, solves the problems of large floor area, inconvenient transportation and so on when the corn harvesting header is not working.
[0031] As Figures 4-7As shown, the header further comprises a shaft connecting piece 70, which comprises a fixed disc 71 and a movable disc 72, and is used for driving connection of the header transmission shaft during folding.
[0032] The header transmission shaft comprises 40 and a header chain rotating shaft, which are divided in the same vertical plane as the folding shaft 33;
[0033] The dividing part of the header transmission shaft 40 and the header chain rotating shaft is fixedly connected with a stop disc 60, the outer key shaft 41 of the discharge edge and the outer key shaft 42 of the discharge middle are fixedly connected to the outer center part of the stop disc 60 in the inner cavity of the header transmission shaft 40; the outer key shaft 21 of the header edge and the outer key shaft 22 of the header middle are fixedly connected to the outer center part of the stop disc 60 in the inner cavity of the header chain rotating shaft.
[0034] The center part of the fixed disc 71 and the movable disc 72 is provided with an inner spline groove 700, and the inner spline groove 700 is matched with the outer key shaft 41 of the discharge edge, the outer key shaft 42 of the discharge middle, the outer key shaft 21 of the header edge and the outer key shaft 22 of the header middle; the side of the fixed disc 71 close to the movable disc 72 is provided with a clamping groove 711, and the side of the movable disc 72 close to the fixed disc 71 is integrally connected with a clamping convex 721, and the clamping convex 721 is matched with the clamping groove 711. The side of the movable disc 72 away from the fixed disc 71 is fixedly connected with a connecting disc 723, the connecting disc 723 is provided with a ring groove 7230, the inner part of the ring groove 7230 is provided with a spring 725, and the side of the ring groove 7230 away from the clamping convex 721 is radially slidably connected with a sliding cover 724.
[0035] The outer periphery of the header transmission shaft 40 is provided with a spiral conveying blade, which is used for discharging the straw; the header chain rotating shaft is used for driving the blades and the feeding device in the header 20 to cut the mature corn ear from the corn stalk. Since the header of the present utility model is foldable, in order to solve the problem of driving connection of the header transmission shaft before and after folding, the shaft connecting piece 70 is designed.
[0036] When the folded corn harvesting header needs to be unfolded, the fixed disc 71 and the movable disc 72 are respectively placed in the dividing part of the header transmission shaft, that is, the positions of the outer key shaft 41 of the discharge edge, the outer key shaft 42 of the discharge middle, the outer key shaft 21 of the header edge and the outer key shaft 22 of the header middle, taking the outer key shaft 41 of the discharge edge and the outer key shaft 42 of the discharge middle as an example: the fixed disc 71 is sleeved and installed on the outer periphery of the outer key shaft 41 of the discharge edge, and the stop disc 60 on the outer key shaft 41 of the discharge edge abuts against the outer side of the fixed disc 71; the movable disc 72 is sleeved and installed on the outer periphery of the outer key shaft 42 of the discharge middle, and the stop disc 60 on the outer key shaft 42 of the discharge middle abuts against the outer side of the sliding cover 724; then the corn harvesting header is unfolded, and after unfolding, the fixed disc 71 and the movable disc 72 are connected, that is, as shown in the figure, the outer key shaft 41 of the discharge edge is connected with the outer key shaft 42 of the discharge middle, and the outer key shaft 21 of the header edge is connected with the outer key shaft 22 of the header middle. Figure 5 、 Figure 6As shown, in the case that the card protrusion 721 exists at the beginning and the card slot 711 cannot be aligned when docking, at this time, the card protrusion 721 abuts against the docking side of the fixed disc 71, the sliding cover 724 is retracted into the ring groove 7230, and the spring 725 is compressed; when the middle part 40 is driven to rotate, the outer key shaft 42 and the movable disc 72 are driven to rotate, at this time, the outer key shaft 41 of the discharging side and the fixed disc 71 are in a state of no power source, when the movable disc 72 rotates to the state that the card protrusion 721 and the card slot 711 are radially docked, under the action of the spring force of the spring 725, the movable disc 72 moves radially towards the fixed disc 71 until the card protrusion 721 and the card slot 711 are mutually clamped, thereby completing the transmission connection of the split part 40.
[0037] The positioning frame 50 is fixedly connected to the main frame 10, and the tail end of the positioning frame 50 is rotatably sleeved around the cutting part of the 40. Since there is no corresponding positioning member around the 40, the positioning member supports the middle part 40 after folding, and the positioning frame 50 is used for positioning and supporting the split part of the 40 before and after folding.
[0038] The above examples are only used to illustrate the technical solutions of the present application, and not to limit them.
Claims
1. A foldable corn harvesting header comprising a main frame (10) provided with a plurality of horizontally transversely arranged headers (20) in front of said main frame (10), characterized in that, The cutting platform further comprises: A hydraulic cylinder (31) is rotationally connected to the top of the main frame (10), the main frame (10) is divided into left, middle and right three parts in the transverse direction, and the folding shaft (33) is arranged between two adjacent parts, and the adapter (32) connects two adjacent parts; The cutting platform further comprises a shaft adapter (70), the shaft adapter (70) comprises a fixed disc (71) and a movable disc (72), and the shaft adapter (70) is used for driving connection of the cutting platform transmission shaft during folding.
2. A foldable corn harvesting header according to claim 1 wherein, The cutting platform transmission shaft (40) and the cutting platform chain shaft are divided in the same vertical plane position of the folding shaft (33); The (40) and the cutting platform chain shaft are divided in the same vertical plane position of the folding shaft (33); 3. A foldable corn harvesting header according to claim 2, wherein, The (40) and the cutting platform chain shaft are divided in the same vertical plane position of the folding shaft (33); 4. A foldable corn harvesting header according to claim 3 wherein, The (40) and the cutting platform chain shaft are divided in the same vertical plane position of the folding shaft (33); 5. A foldable corn harvesting header according to claim 4 wherein, The (40) and the cutting platform chain shaft are divided in the same vertical plane position of the folding shaft (33); 6. 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