Self-unloading device of corn ear collecting box
By adjusting the height and tilt angle of the loading box through the lifting and unloading mechanism, the problem that the corn harvester's ear collection box could not adapt to different loading and unloading vehicle heights was solved, thus achieving automated unloading and high-efficiency ear unloading.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 张广磊
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-21
AI Technical Summary
The unloading port of the ear collection box of existing corn harvesters cannot adapt to the height differences of different types of loading and unloading vehicles, resulting in complicated operation, low efficiency, and easy retention of ears of corn, which limits the versatility and operational flexibility of the equipment.
A self-unloading device for corn ear collection boxes, including a lifting mechanism and an unloading mechanism, was designed. The height of the loading box is adjusted by the lifting mechanism, and the tilt angle is precisely controlled by the unloading mechanism and the tilt sensor to achieve automated unloading.
It improves the versatility and operational flexibility of the equipment, ensures smooth unloading of the ears of fruit, reduces residue, and achieves automation and high efficiency in the unloading process.
Smart Images
Figure CN224139596U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of agricultural machinery technology, specifically relating to a self-unloading device for a corn ear collection box. Background Technology
[0002] A corn harvester is a crop harvesting machine that targets mature corn plants. It is widely used because it can complete functions such as ear picking, peeling, and straw processing in one go. The corn planters currently in use basically include a frame, a gathering device, an ear picking device, and an ear collection box. As the corn harvester moves, the gathering device gathers the corn plants to the front of the ear picking device, and the ear picking device picks the corn ears from the corn plants and sends them into the ear collection box.
[0003] In existing technologies, the unloading port of the chaff collection box usually adopts a fixed structure. When the height of the loading and unloading vehicle's bucket is lower than the unloading port of the chaff collection box, additional pads or manual assistance are required for unloading, which increases the complexity of operation and labor intensity. If the bucket height is too high, the loading must be completed by extending the unloading chute or secondary handling, resulting in low efficiency. It cannot adapt to the height differences of different types of loading and unloading vehicles and requires external equipment to compensate, which limits the versatility and operational flexibility of the equipment. Moreover, existing chaff collection boxes are prone to incomplete unloading, leaving chaff residues inside the box, which reduces unloading efficiency.
[0004] Therefore, a self-unloading device for corn ear collection boxes is needed to solve the problem that existing collection boxes cannot adapt to the height differences of different types of loading and unloading vehicles, requiring external equipment to compensate, which limits the versatility and operational flexibility of the equipment. Utility Model Content
[0005] The purpose of this utility model is to provide a self-unloading device for corn ear collection boxes to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-unloading device for a corn ear collection box, comprising a frame, a lifting mechanism, a support plate, an unloading mechanism, a fixed shaft, a mounting plate, and a loading box. The lifting mechanism is located inside and above the frame, the support plate is located above the lifting mechanism, the unloading mechanism is located inside and above the support plate, the fixed shaft is fixedly connected to the left side of the support plate, the lower left side of the mounting plate is rotatably connected to the outside of the fixed shaft, and the loading box is fixedly connected to the top of the mounting plate.
[0007] The solution specifies that the lifting mechanism comprises a motor, a lead screw, a fixed rod, a moving plate, a connecting seat, a connecting rod, a first rotating rod, a roller, a second rotating rod, a slider, and a limit box. The motor is fixedly connected to the right side of the frame. The lead screw is rotatably connected to the inside of the frame, and its right end is fixedly connected to the output end of the motor. The fixed rod is symmetrically fixedly connected to the inside of the frame. The moving plate is threadedly connected to the outside of the lead screw and slidably connected to the fixed rod. The connecting seat is symmetrically fixedly connected above the moving plate. The connecting rod passes through the connecting seat and is rotatably connected to it.
[0008] It is worth noting that the first rotating rod and the second rotating rod are symmetrically staggered, and the first rotating rod and the second rotating rod are rotatably connected. The lower left end of the second rotating rod is rotatably connected to the top of the frame, the upper left end of the first rotating rod is rotatably connected to the bottom of the support plate, the lower right end of the first rotating rod is rotatably connected to one end of the connecting rod, the first roller is rotatably connected to one side of the first rotating rod, and the inside of the frame is provided with a groove that matches the first roller.
[0009] Furthermore, it should be noted that the slider is rotatably connected to the upper right end of the second rotating rod, the limiting box is symmetrically and fixedly connected to the bottom surface of the support plate, and the slider is slidably connected to the inside of the limiting box.
[0010] In a preferred embodiment, the unloading mechanism comprises a second motor, a second lead screw, a second fixed rod, a second movable plate, a drive rod, a support rod, a connecting block, a second roller, and a limiting frame. The second motor is fixedly connected to the right side of the support plate, the second lead screw is rotatably connected to the inside of the support plate, the second fixed rod is symmetrically fixedly connected to the inside of the support plate, and the second movable plate is threadedly connected to the outside of the second lead screw, and the second movable plate is slidably connected to the second fixed rod.
[0011] In a preferred embodiment, the drive rod is symmetrically rotatably connected to the front and rear sides of the movable plate two, the middle part of the support rod is rotatably connected to one end of the drive rod, one end of the support rod is rotatably connected to the inner left side of the support plate, and the connecting block is rotatably connected to the other end of the support rod.
[0012] In a preferred embodiment, the second roller is fixedly connected to the top of the connecting block, and the bottom surface of the mounting plate is symmetrically fixedly connected to the limiting frame, with the second roller rotatably connected inside the limiting frame.
[0013] In a preferred embodiment, the unloading gate is symmetrically arranged on the left side of the loading box, and an angle sensor is installed inside the loading box.
[0014] Compared with the prior art, the self-unloading device for corn ear collection boxes provided by this utility model has at least the following beneficial effects:
[0015] (1) The height of the loading box can be flexibly adjusted by the lifting mechanism to adapt to the height differences of different types of loading and unloading vehicles, thereby improving the equipment’s versatility and operational flexibility.
[0016] (2) By using the unloading mechanism and tilt sensor, the tilt angle of the loading box is precisely controlled to ensure that the ears of fruit slide out smoothly, reduce the residue in the box, realize the automation of the unloading process, reduce manual intervention, and improve unloading efficiency. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0018] Figure 2 This is a front view structural diagram of the present utility model;
[0019] Figure 3 This is a schematic diagram of the lifting mechanism structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the unloading mechanism of this utility model.
[0021] In the diagram: 1. Frame; 2. Lifting mechanism; 3. Support plate; 4. Unloading mechanism; 5. Fixed shaft; 6. Mounting plate; 7. Loading box; 201. Motor 1; 202. Lead screw 1; 203. Fixed rod 1; 204. Moving plate 1; 205. Connecting seat; 206. Connecting rod; 207. First rotating rod; 208. Roller 1; 209. Second rotating rod; 210. Slider; 211. Limiting box; 401. Motor 2; 402. Lead screw 2; 403. Fixed rod 2; 404. Moving plate 2; 405. Drive rod; 406. Support rod; 407. Connecting block; 408. Roller 2; 409. Limiting frame. Detailed Implementation
[0022] The present invention will be further described below with reference to the embodiments.
[0023] Please see Figure 1-4 This utility model provides a self-unloading device for corn ear collection boxes, including a frame 1, a lifting mechanism 2, a support plate 3, an unloading mechanism 4, a fixed shaft 5, a mounting plate 6, and a loading box 7. The lifting mechanism 2 is located inside and above the frame 1, the support plate 3 is located above the lifting mechanism 2, the unloading mechanism 4 is located inside and above the support plate 3, the fixed shaft 5 is fixedly connected to the left side of the support plate 3, the lower left side of the mounting plate 6 is rotatably connected to the outside of the fixed shaft 5, and the loading box 7 is fixedly connected to the top of the mounting plate 6.
[0024] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the lifting mechanism 2 consists of a motor 201, a lead screw 202, a fixed rod 203, a moving plate 204, a connecting seat 205, a connecting rod 206, a first rotating rod 207, a roller 208, a second rotating rod 209, a slider 210, and a limit box 211. The motor 201 is fixedly connected to the right side of the frame 1. The lead screw 202 is rotatably connected to the inside of the frame 1, and the right end of the lead screw 202 is fixedly connected to the output end of the motor 201. The fixed rod 203 is symmetrically fixedly connected to the inside of the frame 1. The moving plate 204 is threadedly connected to the outside of the lead screw 202, and the moving plate 204 is slidably connected to the fixed rod 203. The connecting seat 205 is symmetrically fixedly connected above the moving plate 204. The connecting rod 206 passes through the connecting seat 205 and is rotatably connected to the connecting seat 205.
[0025] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the first rotating rod 207 and the second rotating rod 209 are symmetrically staggered, and the first rotating rod 207 and the second rotating rod 209 are rotatably connected. The lower left end of the second rotating rod 209 is rotatably connected to the top of the frame 1, the upper left end of the first rotating rod 207 is rotatably connected to the bottom of the support plate 3, the lower right end of the first rotating rod 207 is rotatably connected to one end of the connecting rod 206, and the roller 208 is rotatably connected to one side of the first rotating rod 207. The inside of the frame 1 is provided with a groove that matches the roller 208.
[0026] When the connecting rod 206 moves with the connecting seat 205, it drives the roller 208 to roll inside the groove, ensuring the stable rotation of the first rotating rod 207 and improving the stability of the movement.
[0027] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the slider 210 is rotatably connected to the upper right end of the second rotating rod 209, the limiting box 211 is symmetrically fixed to the bottom surface of the support plate 3, and the slider 210 is slidably connected to the inside of the limiting box 211.
[0028] The auxiliary support plate 3 rises smoothly as it slides within the limit box 211 via the slider 210 through the upper right end of the second rotating rod 209.
[0029] As can be seen from the above working process, the height of the loading box 7 can be flexibly adjusted by the lifting mechanism 2, adapting to the height differences of different types of loading and unloading vehicles, and improving the versatility and operational flexibility of the equipment.
[0030] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth noting that the unloading mechanism 4 consists of a second motor 401, a second lead screw 402, a second fixed rod 403, a second moving plate 404, a drive rod 405, a support rod 406, a connecting block 407, a second roller 408, and a limiting frame 409. The second motor 401 is fixedly connected to the right side of the support plate 3, the second lead screw 402 is rotatably connected to the inside of the support plate 3, the second fixed rod 403 is symmetrically fixedly connected to the inside of the support plate 3, and the second moving plate 404 is threadedly connected to the outside of the second lead screw 402, and the second moving plate 404 is slidably connected to the second fixed rod 403.
[0031] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth noting that the drive rod 405 is symmetrically rotatably connected to the front and rear sides of the movable plate 404, the middle part of the support rod 406 is rotatably connected to one end of the drive rod 405, one end of the support rod 406 is rotatably connected to the inner left side of the support plate 3, and the connecting block 407 is rotatably connected to the other end of the support rod 406.
[0032] The linkage design of the drive rod 405 and the support rod 406 enables the loading box 7 to tilt smoothly, thus avoiding damage to the ears of fruit.
[0033] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth noting that roller 2 408 is fixedly connected to the top of connecting block 407, and the bottom surface of mounting plate 6 is symmetrically fixedly connected to limit frame 409. Roller 2 408 is rotatably connected to the inside of limit frame 409.
[0034] The roller 408 rolls inside the limit frame 409, pushing the right side of the mounting plate 6 to rise and fall, causing the mounting plate 6 to rotate around the fixed axis 5, and the loading box 7 to begin to tilt.
[0035] A discharge door is symmetrically arranged on the left side of the loading box 7, and an angle sensor is installed inside the loading box 7;
[0036] The unloading gate is controlled by an electric push rod, which is electrically connected to a tilt sensor. The tilt sensor detects the tilt angle of the loading box 7. When the angle is greater than a certain set value, the electric push rod is controlled to drive the unloading gate to the set position to keep the gate open, so that the ears of fruit inside the loading box 7 can be unloaded. The tilt sensor continues to monitor. After the ear collection box returns to level, the electric push rod drives the unloading gate to close.
[0037] This solution has the following working process: When the device is in the initial state, the moving plate 204 is located at the rightmost side of the lead screw 202, the support plate 3 is in the lowest position, the moving plate 404 is located at the rightmost side of the lead screw 402, the drive rod 405 and the support rod 406 are in the retracted state, the mounting plate 6 is kept horizontal, the unloading door of the loading box 7 is closed, the inside is filled with corn ears, and the tilt sensor is in standby mode; when it is necessary to unload the corn ears inside, the height of the loading box 7 is first adjusted to accommodate different... When the loading and unloading vehicle starts, the motor 201 drives the lead screw 202 to rotate. Under the constraint of the lead screw 202 and the fixed rod 203, the moving plate 204 moves horizontally to the left. Through the connecting seat 205, it drives the lower right end of the first rotating rod 207 to move to the left, and drives the upper right end of the second rotating rod 209 to move to the left inside the limit box 211 through the slider 210, pushing the support plate 3 to rise. According to the height of the loading and unloading vehicle, the support plate 3 is adjusted to a suitable position to ensure that the unloading door of the loading box 7 matches the height of the loading and unloading vehicle.
[0038] Then, motor 401 is started, driving screw 402 to rotate. Movable plate 404, constrained by screw 402 and fixed rod 403, moves horizontally to the left. Drive rod 405 pushes support rod 406 to rotate around its left end. The other end of support rod 406, through connecting block 407, drives roller 408 to roll within limit frame 409. Roller 408 pushes limit frame 409, causing mounting plate 6 to rotate around fixed shaft 5. Loading box 7 begins to tilt. Tilt sensor monitors the tilt angle of loading box 7 in real time. When the set value is reached, the unloading door automatically opens, and corn ears in loading box 7 slide out through the unloading door and fall into loading / unloading vehicle. After the ears in loading box 7 are emptied, motor 401 reverses, driving unloading mechanism 4 to reset. Motor 201 reverses, driving lifting mechanism 2 to reset, and support plate 3 descends to its lowest position.
[0039] In summary: The lifting mechanism 2 allows for flexible adjustment of the height of the loading box 7 to accommodate the height differences of different types of loading and unloading vehicles, thereby improving the equipment's versatility and operational flexibility; the unloading mechanism 4 and tilt sensor precisely control the tilt angle of the loading box 7, ensuring that the ears of fruit slide out smoothly, reducing residue inside the box, automating the unloading process, reducing manual intervention, and improving unloading efficiency.
Claims
1. A corn ear collecting box self-unloading device, comprising a frame (1), a lifting mechanism (2), a supporting plate (3), an unloading mechanism (4), a fixed shaft (5), a mounting plate (6) and a loading box (7), characterized in that: The lifting mechanism (2) is located inside and above the frame (1), the support plate (3) is located above the lifting mechanism (2), the unloading mechanism (4) is located inside and above the support plate (3), the fixed shaft (5) is fixedly connected to the left side of the support plate (3), the lower left side of the mounting plate (6) is rotatably connected to the outside of the fixed shaft (5), and the loading box (7) is fixedly connected to the top of the mounting plate (6).
2. A corn ear gathering box self-unloading device according to claim 1, characterized in that: The lifting mechanism (2) consists of a motor (201), a lead screw (202), a fixed rod (203), a moving plate (204), a connecting seat (205), a connecting rod (206), a first rotating rod (207), a roller (208), a second rotating rod (209), a slider (210), and a limiting box (211). The motor (201) is fixedly connected to the right side of the frame (1), and the lead screw (202) is rotatably connected to the inside of the frame (1). The right end of 02) is fixedly connected to the output end of motor 1 (201). The fixed rod 1 (203) is symmetrically fixedly connected to the inside of the frame (1). The moving plate 1 (204) is threadedly connected to the outside of the lead screw 1 (202), and the moving plate 1 (204) is slidably connected to the fixed rod 1 (203). The connecting seat (205) is symmetrically fixedly connected above the moving plate 1 (204). The connecting rod (206) passes through the connecting seat (205) and is rotatably connected to the connecting seat (205).
3. A corn ear collection box self-unloading device according to claim 2, characterized in that: The first rotating rod (207) and the second rotating rod (209) are symmetrically staggered front and back, and the first rotating rod (207) and the second rotating rod (209) are rotatably connected. The lower left end of the second rotating rod (209) is rotatably connected to the top of the frame (1), the upper left end of the first rotating rod (207) is rotatably connected to the bottom of the support plate (3), the lower right end of the first rotating rod (207) is rotatably connected to one end of the connecting rod (206), the first roller (208) is rotatably connected to one side of the first rotating rod (207), and the inside of the frame (1) is provided with a groove that matches the first roller (208).
4. A corn ear collection box self-unloading device according to claim 3, characterized in that: The slider (210) is rotatably connected to the upper right end of the second rotating rod (209), the limiting box (211) is symmetrically fixed to the bottom surface of the support plate (3), and the slider (210) is slidably connected to the inside of the limiting box (211).
5. A corn ear collection box self-unloading device according to claim 4, characterized in that: The unloading mechanism (4) consists of a second motor (401), a second lead screw (402), a second fixed rod (403), a second moving plate (404), a drive rod (405), a support rod (406), a connecting block (407), a second roller (408), and a limiting frame (409). The second motor (401) is fixedly connected to the right side of the support plate (3). The second lead screw (402) is rotatably connected to the inside of the support plate (3). The second fixed rod (403) is symmetrically fixedly connected to the inside of the support plate (3). The second moving plate (404) is threadedly connected to the outside of the second lead screw (402), and the second moving plate (404) is slidably connected to the second fixed rod (403).
6. A corn ear collection box self-unloading device according to claim 5, characterized in that: The drive rod (405) is symmetrically rotatably connected to the front and rear sides of the movable plate (404), the middle part of the support rod (406) is rotatably connected to one end of the drive rod (405), one end of the support rod (406) is rotatably connected to the inside left side of the support plate (3), and the connecting block (407) is rotatably connected to the other end of the support rod (406).
7. A self-unloading device for a corn ear collection box according to claim 6, characterized in that: The second roller (408) is fixedly connected to the top of the connecting block (407), and the bottom surface of the mounting plate (6) is symmetrically fixedly connected to the limiting frame (409). The second roller (408) is rotatably connected to the inside of the limiting frame (409).
8. A corn ear collection box self-unloading device according to claim 7, characterized in that: The unloading gate is symmetrically arranged on the left side of the loading box (7), and an tilt sensor is arranged inside the loading box (7).