Mechanical granary and corn harvester

By designing a mechanical grain bin driven by lifting and tilting cylinders on the corn harvester, the problem of fixed grain bin height in the corn harvester was solved, and an efficient and safe grain unloading process was achieved.

CN223928955UActive Publication Date: 2026-02-24XIANGYUAN COUNTY RENDA MECHANICAL & ELECTRICAL EQUIP CO LTD
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Patent Information

Application Number
CN202520616731.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-02-24
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

The grain bin height of existing corn harvesters is fixed and cannot be adapted to high-sided transport machinery, resulting in the need for manual lifting and tipping during unloading, which is inconvenient.

Method used

Design a mechanical grain silo that uses a combination of lifting and tilting cylinders to achieve lifting and tilting of the silo, adapting to transport machinery of different heights.

Benefits of technology

Without increasing the overall height of the vehicle, the unloading height was increased, reducing manual operation and improving unloading efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mechanical granary and a corn harvester, the mechanical granary comprises a granary body, a bottom frame, an outer box frame and an inner box frame; the outer box frame is slidably connected with the inner box frame, the bottom of the outer box frame is connected with the bottom frame, and the inner box frame is connected with the granary body. A lifting oil cylinder is arranged between the outer box frame and the inner box frame and used for driving the inner box frame to ascend and descend relative to the outer box frame. A turnover oil cylinder is arranged between the inner box frame and the granary body and used for driving the granary body to turn over relative to the inner box frame. According to the utility model, the lifting oil cylinder and the turnover oil cylinder are matched to work, so that the granary body is lifted and turned over, the corn is transferred, and the unloading height of the harvester is increased on the premise that the height of the whole harvester is not increased.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural harvesting machine technology, and in particular to a mechanical grain silo and a corn harvester. Background Technology

[0002] Most existing corn harvesters integrate functions such as cutting, picking ears, and peeling. After harvesting, the corn is first stored in the corn harvester's grain bin. After harvesting, the corn stored in the grain bin is dumped into a designated location or into grain transport machinery such as agricultural tricycles or dump trucks, and then transported to a designated location.

[0003] In order to improve efficiency and transport more corn at once, the sideboards of many large agricultural tricycles and large dump trucks are constantly being raised. The height of the grain bins of existing corn harvesters is fixed. When encountering transport machinery with high sideboards, it is necessary to manually lift and dump the grain for unloading, which is very inconvenient. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a mechanical grain silo and a corn harvester, which can be raised, lowered and tilted to adapt to transport machinery with higher sideboards.

[0005] To solve the above technical problems, according to one aspect of the present utility model, a mechanical grain bin is provided, including a grain bin body, a base frame, an outer box frame, and an inner box frame;

[0006] The outer frame and the inner frame are slidably connected. The bottom of the outer frame is connected to the base frame, and the inner frame is connected to the grain silo body.

[0007] A lifting cylinder is provided between the outer frame and the inner frame, and the lifting cylinder is used to drive the inner frame to rise and fall relative to the outer frame.

[0008] A tilting cylinder is installed between the inner frame and the grain silo body, and the tilting cylinder is used to drive the grain silo body to tilt relative to the inner frame.

[0009] Furthermore, the outer frame includes triangular supports distributed on both sides of the grain silo body. Each triangular support includes a first leg, a second leg, and a track groove. The bottoms of the first leg, the second leg, and the track groove are all fixedly connected to the base frame. The first leg and the second leg are located on the front and rear sides of the track groove, respectively. The tops of the first leg and the second leg are connected to the outer wall of the track groove.

[0010] Furthermore, X-shaped reinforcing ribs connect the second legs of the outer frame of the triangular brackets on both sides.

[0011] Furthermore, a positioning plate is provided for the transverse connection between the track groove and the first leg and the second leg of the outer frame.

[0012] Furthermore, the inner box frame includes inner box frame legs distributed on both sides of the grain silo body. The inner box frame legs are slidably installed inside the track groove. The tops of the two inner box frame legs are respectively connected to the two ends of one side of the grain silo body through a rotating shaft. The two ends of the lifting cylinder are respectively connected to the track groove and the inner box frame legs, and the two ends of the tilting cylinder are respectively connected to the inner box frame legs and the grain silo body.

[0013] Furthermore, the inner frame legs on both sides are connected by an upper horizontal tube and a lower horizontal tube.

[0014] Furthermore, an inclined tube connects the upper and lower horizontal tubes.

[0015] According to another aspect of the present invention, a corn harvester is provided, comprising the mechanical grain bin described above.

[0016] The mechanical grain silo provided by this utility model is mounted on the frame of a corn harvester via a base frame. Extending the lifting cylinder moves the inner silo frame away from the base frame, while retracting the lifting cylinder moves the inner silo frame closer to the base frame. When unloading corn, first activate the lifting cylinder to vertically raise the inner silo frame and the grain silo, then activate the tilting cylinder to tilt the grain silo body so that the corn flows out.

[0017] This invention utilizes a lifting cylinder and a tilting cylinder to lift and tilt the grain bin body, thereby completing the transfer of corn. It increases the unloading height of the harvester without increasing the overall height of the vehicle. During this process, manual handling, lifting, and tilting operations are not required, saving labor and improving the efficiency and safety of corn tilting and transfer. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention.

[0019] Figure 1 This is a schematic diagram of the mechanical grain silo described in this utility model;

[0020] Figure 2 yes Figure 1 A schematic diagram of the structure of the COFCO warehouse body and inner frame when it is raised;

[0021] Figure 3 This is a structural diagram of the combination of the outer frame and the inner frame;

[0022] Figure 4 This is a structural diagram of the inner frame;

[0023] Figure 5 This is a structural diagram of the outer frame.

[0024] In the diagram, 1-base frame, 2-outer box frame, 3-inner box frame, 4-grain silo body, 5-lifting cylinder, 6-tilting cylinder;

[0025] 21-First leg of outer frame, 22-Second leg of outer frame, 23-Track groove, 24-Reinforcing rib, 25-Positioning plate;

[0026] 31-Inner frame support leg, 32-Upper horizontal tube, 33-Lower horizontal tube, 34-Slanted tube. Detailed Implementation

[0027] To enable those skilled in the art to better understand this utility model, the present utility model will be further described clearly and completely below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0028] like Figure 1 and Figure 2 As shown, a typical embodiment of the mechanical grain bin provided by this utility model mainly consists of a grain bin body 4, a base frame 1, an outer box frame 2, and an inner box frame 3.

[0029] The outer frame 2 and the inner frame 3 are slidably connected. The bottom of the outer frame 2 is connected to the base frame 1, and the inner frame 3 is connected to the grain silo body 4. A lifting cylinder 5 is installed between the outer frame 2 and the inner frame 3, which is used to lift the inner frame 3 relative to the outer frame 2. A tilting cylinder 6 is installed between the inner frame 3 and the grain silo body 4, which is used to tilt the grain silo body 4 relative to the inner frame 3.

[0030] The grain silo body 4 is a frame structure formed by rectangular tubes and reinforcing tubes. One side wall of the grain silo body 4 is higher than the other side walls. The connection point between the tilting cylinder 6 and the grain silo body 4, and the connection point between the grain silo body 4 and the inner box frame 3 are all located on this side wall.

[0031] According to the above implementation method, when the lifting cylinder 5 is working, the inner box frame 3 and the grain bin body 4 can be vertically raised and lowered simultaneously; when the tilting cylinder 6 is working, the grain bin body 4 can be tilted. The vertical raising and lowering and tilting of the grain bin body 4 are independently controlled and do not affect each other. They can be carried out simultaneously or separately, and the operation is convenient. It can increase the unloading height of the harvester without increasing the overall height of the vehicle.

[0032] In a relatively specific implementation, such as Figure 3 , Figure 5As shown, the outer frame 2 includes triangular supports distributed on both sides of the grain silo body 4. Each triangular support includes a first leg 21, a second leg 22, and a track groove 23. The bottoms of the first leg 21, the second leg 22, and the track groove 23 are all bolted to the base frame 1. The first leg 21 and the second leg 22 are located on the front and rear sides of the track groove 23, respectively. The tops of the first leg 21 and the second leg 22 are connected to the outer wall of the track groove 23.

[0033] In this embodiment, the outer frame 2 adopts a two-sided support leg assembly structure, and the track groove 23 is made of channel steel or steel plates bent on both sides. The first support leg 21 and the second support leg 22 of the outer frame are rectangular tubes, which are obliquely supported on both sides of the track groove 23, playing a supporting and strengthening role.

[0034] Based on the above embodiments, preferably, an X-shaped reinforcing rib 24 is connected between the second legs 22 of the outer box frame of the triangular brackets on both sides to ensure the overall structure of the outer box frame 2 is stable and not easily deformed.

[0035] In a preferred embodiment, a positioning plate 25 is provided laterally between the track groove 23 and the first leg 21 and the second leg 22 of the outer frame. The positioning plate 25 can better ensure that the track groove 23 is not easily deformed.

[0036] In a preferred embodiment, such as Figure 3 , Figure 4 As shown, the inner box frame 3 includes inner box frame legs 31 distributed on both sides of the grain silo body 4. The inner box frame legs 31 are slidably installed inside the track groove 23. The tops of the two inner box frame legs 31 are respectively connected to the two ends of one side of the grain silo body 4 through a rotating shaft. The two ends of the lifting cylinder 5 are respectively connected to the track groove 23 and the inner box frame legs 31. The two ends of the tilting cylinder 6 are respectively connected to the inner box frame legs 31 and the grain silo body 4.

[0037] The inner frame support legs 31 are embedded in the track grooves 23 of the outer frame 2. The lifting cylinder 5 is connected to the cylinder mounting seats of the outer frame 2 and the inner frame 3. When the lifting cylinder 5 extends or retracts, it allows the inner frame to slide freely, achieving the purpose of vertical lifting of the grain silo. The preferred lifting range is 800-1000mm, and the unloading height can reach 2.85-3.85m. The grain silo body 4 is placed in the inner frame and rotatably connected to the inner frame 3. The tilting cylinder 6 is connected to the cylinder mounting seats of the grain silo body 4 and the inner frame 3. When the tilting cylinder 6 extends or retracts, the grain silo body 4 tilts to a certain angle, dumping the ears of grain at a designated location. The grain silo body 4 can unload grain either by raising it to a certain height or without lifting or retracting.

[0038] In one relatively specific embodiment, an upper horizontal tube 32 and a lower horizontal tube 33 are connected between the inner box frame legs 31 on both sides. An oblique tube 34 is connected between the upper horizontal tube 32 and the lower horizontal tube 33. The upper and lower horizontal tubes and the oblique tube ensure that the inner box frame 3 is not easily deformed during welding while maintaining its square shape.

[0039] The inner frame 3 is integrally welded, and the bottom of the track groove 23 is equipped with pads to reduce the shaking of the inner frame 3 when it is raised and lowered, thereby increasing the overall stability.

[0040] Another typical embodiment of this utility model provides a corn harvester, which is equipped with the mechanical grain bin described above. The base frame 1 is welded and fixed to the frame of the corn harvester.

[0041] The scope of protection claimed by this utility model is not limited to the specific embodiments described above. For those skilled in the art, this utility model can have various modifications and alterations. Any modifications, improvements and equivalent substitutions made within the concept and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mechanical grain silo, comprising a grain silo body (4), characterized in that: It also includes a base frame (1), an outer frame (2) and an inner frame (3); The outer frame (2) and the inner frame (3) are slidably connected. The bottom of the outer frame (2) is connected to the base frame (1), and the inner frame (3) is connected to the grain silo body (4). A lifting cylinder (5) is provided between the outer frame (2) and the inner frame (3), and the lifting cylinder (5) is used to drive the inner frame (3) to rise and fall relative to the outer frame (2); A tilting cylinder (6) is provided between the inner box frame (3) and the grain silo body (4). The tilting cylinder (6) is used to drive the grain silo body (4) to tilt relative to the inner box frame (3).

2. The mechanical grain silo according to claim 1, characterized in that: The outer frame (2) includes triangular supports distributed on both sides of the grain silo body (4). Each triangular support includes a first leg (21), a second leg (22), and a track groove (23). The bottom of the first leg (21), the second leg (22), and the track groove (23) are all fixedly connected to the base frame (1). The first leg (21) and the second leg (22) are located on the front and rear sides of the track groove (23), respectively. The tops of the first leg (21) and the second leg (22) are connected to the outer wall of the track groove (23).

3. The mechanical grain silo according to claim 2, characterized in that: An X-shaped reinforcing rib (24) is connected between the second leg (22) of the outer box frame of the triangular bracket on both sides.

4. The mechanical grain silo according to claim 2 or 3, characterized in that: A positioning plate (25) is laterally connected between the track groove (23) and the first leg (21) and the second leg (22) of the outer frame.

5. The mechanical grain silo according to claim 4, characterized in that: The inner frame (3) includes inner frame legs (31) distributed on both sides of the grain silo body (4). The inner frame legs (31) are slidably installed inside the track groove (23). The tops of the two inner frame legs (31) are respectively connected to the two ends of one side of the grain silo body (4) through a rotating shaft. The two ends of the lifting cylinder (5) are respectively connected to the track groove (23) and the inner frame legs (31). The two ends of the tilting cylinder (6) are respectively connected to the inner frame legs (31) and the grain silo body (4).

6. The mechanical grain silo according to claim 5, characterized in that: The upper horizontal tube (32) and the lower horizontal tube (33) are connected between the inner box frame legs (31) on both sides.

7. The mechanical grain silo according to claim 6, characterized in that: An inclined tube (34) connects the upper horizontal tube (32) and the lower horizontal tube (33).

8. A corn harvester, comprising the mechanical grain bin as described in any one of claims 1-7.