A high-efficiency threshing device for sunflower flower heads

Abstract

This utility model provides a high-efficiency threshing device for harvesting sunflower heads, including a hopper with a feed inlet at the upper side. An annular plate is fixedly installed inside the hopper, and a threshing plate is connected to the annular plate via a first spring. A first hydraulic cylinder is fixedly installed at the top of the hopper, and a hammer is fixedly installed on the bottom of the output shaft of the first hydraulic cylinder. A second hydraulic cylinder is also vertically fixedly installed at the top of the hopper, and a cutting plate is fixedly installed on the bottom of the output shaft of the second hydraulic cylinder. A cutting blade is provided on the bottom of the cutting plate. A sieve plate is inclinedly arranged at the bottom of the hopper, and a collection hopper is located below the sieve plate. This utility model features two sets of first hydraulic cylinders fixedly installed at the top of the hopper, which can alternately drive the hammers to strike the sunflower heads, promoting threshing, increasing the frequency of striking the sunflower heads, and reducing the force of each strike to prevent damage to the sunflower seeds, resulting in high threshing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of sunflower threshing technology, specifically relating to an efficient threshing device for harvesting sunflower heads. Background Technology

[0002] Chinese invention patent CN103563552B discloses a scissor-type sunflower harvester, which includes a tractor, a gearbox, a drive shaft, scissors, a conveyor, a divider clamp, and a hopper. During operation, the tractor rotates, driving the gearbox. The gearbox drives the drive wheel to rotate via the drive shaft. The drive wheel drives the lifting linkage to reciprocate, causing the moving blades to open and close. The sunflowers fall into the conveyor and finally enter the hopper, resulting in high harvesting efficiency.

[0003] This harvester can only harvest the sunflower heads, not thresh them. The sunflower heads in the hopper need to be transferred to a thresher for threshing, which reduces the threshing efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a high-efficiency threshing device for harvesting sunflower heads, which addresses the shortcomings of the prior art. This high-efficiency threshing device has a simple structure. It uses two sets of first hydraulic cylinders to drive the hammers to strike the sunflower heads in turn, thereby increasing the frequency of striking the sunflower heads, improving the threshing efficiency, achieving good threshing effect, and being easy to install and recycle. It can be widely applied.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a high-efficiency threshing device for harvesting sunflower heads, characterized in that the utility model provides a high-efficiency threshing device for harvesting sunflower heads, including a hopper, with a feed inlet at the upper side of the hopper for receiving sunflower heads conveyed by a conveyor; a ring plate is fixedly installed inside the hopper, and a threshing plate is connected to the ring plate by a first spring; two sets of first hydraulic cylinders are vertically fixedly installed at the top of the hopper, and a striking hammer is fixedly installed at the bottom of the output shaft of the first hydraulic cylinder for striking the sunflower heads. The first hydraulic cylinders can drive the striking hammers to descend, impacting the threshing plate and the sunflower heads.

[0006] The sunflower head enters the hopper through the feed inlet and falls onto the threshing plate. The hammer strikes the sunflower head on the threshing plate, causing the sunflower seeds on the head to fall off. At the same time, the first spring is compressed, causing the threshing plate to descend. When the hammer finishes striking and rises, the threshing plate rises under the action of the first spring. Under the action of the first spring, the weight of the threshing plate, and the weight of the sunflower head, the threshing plate vibrates, causing the sunflower seeds on the head to fall off.

[0007] Multiple second hydraulic cylinders are also vertically fixed at the top of the hopper. A cutting plate is fixedly installed on the bottom of the output shaft of the second hydraulic cylinder. A cutting blade for cutting sunflower heads is provided on the bottom of the cutting plate. The cutting plate is provided with a through hole that allows the hammer to pass through. The cutting blade and the hammer do not interfere with each other.

[0008] The second hydraulic cylinder drives the cutting plate to descend, which can cut the threshed sunflower heads into small pieces.

[0009] The threshing plate has multiple square holes evenly spaced. A sieve plate is inclinedly installed at the bottom of the hopper. A discharge port is located on the lower side of the sieve plate, and a collection hopper is located below the sieve plate. Small pieces of sunflower heads fall onto the sieve plate through the square holes and are discharged from the discharge port along the sieve plate. Sunflower seeds fall onto the sieve plate through the square holes, then pass through the sieve holes and fall into the collection hopper.

[0010] Preferably, the lower side of the sieve plate is hinged to the inner wall of the hopper, and the other side of the sieve plate is connected to the bottom end of the annular plate via a second spring. When small sunflower heads fall onto the sieve plate, they impact the sieve plate, compressing the second spring. Under the action of the second spring, the sieve plate swings, causing the small sunflower heads to slide down the sieve plate and the sunflower seeds on the sieve plate to fall into the collection hopper.

[0011] Preferably, the cutting blade comprises longitudinal blades and transverse blades installed at equal intervals, the longitudinal blades and transverse blades being perpendicular to each other, forming a grid between them to allow a hammer to pass through, and the raising and lowering of the hammer and the cutting blades not affecting each other. The longitudinal blades and transverse blades cut the sunflower heads after threshing, cutting them into small pieces. The small pieces of sunflower heads pass through the square holes and fall onto the inclined sieve plate, exiting from the waste discharge port along the sieve plate.

[0012] Preferably, the hammer is covered with a rubber layer to prevent damage to the sunflower seeds.

[0013] Preferably, the lower part of the hopper is provided with a discharge door that can accommodate the collection hopper. When the collection hopper is full of sunflower seeds, the discharge door can be opened to discharge the sunflower seeds.

[0014] Preferably, the two sets of the first hydraulic cylinders are installed at intervals, and the two sets of the first hydraulic cylinders operate in turn to increase the frequency of striking the sunflower head, while reducing the force of each strike to prevent damage to the sunflower seeds.

[0015] This utility model has the following advantages compared with the prior art:

[0016] This invention features a first hydraulic cylinder and a second hydraulic cylinder fixedly installed at the top of the hopper. The first hydraulic cylinder has two sets, which can alternately drive the hammer to strike the sunflower heads, promoting threshing and increasing the frequency of striking the sunflower heads while reducing the force of each strike to prevent damage to the sunflower seeds. The second hydraulic cylinder can drive the cutting blade to move and cut the threshed sunflower heads. The cut sunflower heads can be discharged along the inclined sieve plate, and the sunflower seeds are stored in the collection hopper after passing through the sieve plate.

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the installation of the cutting blade in this utility model.

[0020] Figure 3 This is a schematic diagram of the installation of the first hydraulic cylinder in this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] Detailed Implementation

[0023] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0025] like Figures 1-3As shown, this utility model provides a high-efficiency threshing device for harvesting sunflower heads, including a hopper 1. A feed inlet 2 is provided at the upper side of the hopper 1 for receiving sunflower heads conveyed by a conveyor. An annular plate 3 is fixedly installed inside the hopper 1. A threshing plate 5 is connected to the annular plate 3 via a first spring 4. Two sets of first hydraulic cylinders 6 are vertically fixedly installed at the top of the hopper 1. A striking hammer 7 is fixedly installed at the bottom of the output shaft of each first hydraulic cylinder 6, and the striking hammer 7 is used to strike the sunflower heads. The first hydraulic cylinders 6 can drive the striking hammer 7 to descend, impacting the threshing plate 5 and the sunflower heads.

[0026] The sunflower head enters the hopper 1 through the feed inlet 2 and falls onto the threshing plate 5. The hammer 7 strikes the sunflower head on the threshing plate 5, causing the sunflower seeds on the sunflower head to fall off. At the same time, the first spring 4 is compressed, causing the threshing plate 5 to descend. When the hammer 7 finishes striking and rises, the threshing plate 5 rises under the action of the first spring 4. Under the action of the first spring 4, the gravity of the threshing plate 5, and the gravity of the sunflower head, the threshing plate 5 vibrates, causing the sunflower seeds on the sunflower head to fall off.

[0027] Multiple second hydraulic cylinders 8 are also vertically fixed at the top of the hopper 1. A cutting plate 9 is fixedly installed on the bottom of the output shaft of the second hydraulic cylinder 8. A cutting blade 10 for cutting sunflower heads is provided on the bottom of the cutting plate 9. A through hole 11 is provided on the cutting plate 9 to allow the hammer 7 to pass through. The cutting blade 10 and the hammer 7 do not affect each other.

[0028] The second hydraulic cylinder 8 drives the cutting plate 9 to descend, which can cut the threshed sunflower heads into small pieces.

[0029] The threshing plate 5 has a plurality of square holes 12 evenly distributed on it. A sieve plate 13 is inclinedly arranged at the lower part of the hopper 1. A discharge port 14 is arranged on the hopper 1 close to the lower side of the sieve plate 13. A collection hopper 15 is arranged below the sieve plate 13. Small pieces of sunflower heads fall onto the sieve plate 13 through the square holes 12 and are discharged from the discharge port 14 along the sieve plate 13. Sunflower seeds fall onto the sieve plate 13 through the square holes 12, then pass through the sieve holes of the sieve plate 13 and fall into the collection hopper 15.

[0030] In this embodiment, the lower side of the sieve plate 13 is hinged to the inner wall of the hopper 1, and the other side of the sieve plate 13 is connected to the bottom end of the annular plate 3 via a second spring 16. When small pieces of sunflower heads fall onto the sieve plate 13, they impact the sieve plate 13, causing the second spring 16 to be compressed. Under the action of the second spring 16, the sieve plate 13 swings, causing the small pieces of sunflower heads to slide down the sieve plate 13, and causing the sunflower seeds on the sieve plate 13 to fall into the collection hopper 15.

[0031] In this embodiment, the cutting blade 10 includes longitudinal blades and transverse blades installed at equal intervals. The longitudinal blades and transverse blades are perpendicular to each other, forming a grid between them, which allows the hammer 7 to pass through. The raising and lowering of the hammer 7 and the cutting blade 10 do not affect each other. The longitudinal blades and transverse blades cut the sunflower heads after threshing, cutting them into small pieces. The small pieces of sunflower heads pass through the square holes 12 and fall onto the inclined sieve plate 13, and are discharged from the waste discharge port 14 along the sieve plate 13.

[0032] In this embodiment, the outer surface of the hammer 7 is covered with a rubber layer to prevent damage to the sunflower seeds.

[0033] In this embodiment, the lower part of the hopper 1 is provided with a discharge door that can accommodate the collection hopper 15. When the collection hopper 15 is full of sunflower seeds, the discharge door can be opened to discharge the sunflower seeds.

[0034] In this embodiment, two sets of the first hydraulic cylinders 6 are installed at intervals, and the two sets of the first hydraulic cylinders 6 operate in turn to increase the frequency of striking the sunflower head, while reducing the force of each strike to prevent damage to the sunflower seeds.

[0035] like Figure 3 As shown, the first row of hydraulic cylinders 6 is numbered from left to right as No. 1, No. 2, No. 3, and No. 4; the second row of hydraulic cylinders 6 is numbered from left to right as No. 5, No. 6, No. 7, and No. 8; the third row of hydraulic cylinders 6 is numbered from left to right as No. 9, No. 10, No. 11, and No. 12; and the fourth row of hydraulic cylinders 6 is numbered from left to right as No. 13, No. 14, No. 15, and No. 16. The first group of hydraulic cylinders 6 consists of No. 1, No. 3, No. 6, No. 8, No. 9, No. 11, No. 14, and No. 16, while the rest are the second group of hydraulic cylinders 6. When the first group of hydraulic cylinders 6 extends, the second group of hydraulic cylinders 6 retracts; conversely, when the second group of hydraulic cylinders 6 extends, the first group of hydraulic cylinders 6 retracts. The two groups of hydraulic cylinders 6 alternately extend and retract, driving the hammers 7 to alternately strike the sunflower heads on the threshing plate 5.

[0036] In this embodiment, both the first hydraulic cylinder 6 and the second hydraulic cylinder 8 are connected to the hydraulic system of the tractor.

[0037] In operation, the sunflower head enters the hopper 1 through the feed inlet 2 and falls onto the threshing plate 5. The first hydraulic cylinder 6 is activated, driving the striking hammer 7 to descend and impact the threshing plate 5 and the sunflower head. Two sets of first hydraulic cylinders 6 extend and retract alternately, causing the striking hammer 7 to strike the sunflower head on the threshing plate 5 in turn.

[0038] The hammer 7 strikes the sunflower head on the threshing plate 5, causing the sunflower seeds to fall off. Simultaneously, it compresses the first spring 4, causing the threshing plate 5 to descend. When the hammer 7 rises after striking, the first spring 4 causes the threshing plate 5 to rise further, and the combined forces of the first spring 4, the weight of the threshing plate 5, and the weight of the sunflower head cause the threshing plate 5 to vibrate, further dislodging the sunflower seeds. The dislodged sunflower seeds fall through the square holes 12 onto the sieve plate 13, then through the sieve holes of the sieve plate 13 and into the collection hopper 15.

[0039] After a certain period of time, the sunflower heads are threshed. The second hydraulic cylinder 8 is then activated, which drives the cutting plate 9 to descend, cutting the threshed sunflower heads into small pieces. The small pieces of sunflower heads fall through the square hole 12 onto the sieve plate 13 and are discharged from the waste discharge port 14 along the sieve plate 13.

[0040] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any simple modifications, alterations, and equivalent changes made to the above embodiments based on the technical essence of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A high efficiency dehulling device for sunflower head harvesting, characterized in that, The hopper includes a hopper (1), with a feed inlet (2) at the upper side of the hopper (1) for receiving sunflower heads conveyed by a conveyor. An annular plate (3) is fixedly installed inside the hopper (1), and a threshing plate (5) is connected to the annular plate (3) by a first spring (4). Two sets of first hydraulic cylinders (6) are vertically fixedly installed at the top of the hopper (1), and a hammer (7) is fixedly installed at the bottom of the output shaft of the first hydraulic cylinder (6) for hammering the sunflower heads. Multiple second hydraulic cylinders are also vertically fixedly installed at the top of the hopper (1). A cutting plate (9) is fixedly installed on the bottom end of the output shaft of the hydraulic cylinder (8). A cutting blade (10) for cutting sunflower heads is provided on the bottom end of the cutting plate (9). A through hole (11) is provided on the cutting plate (9) to allow the hammer (7) to pass through. A plurality of square holes (12) are evenly opened on the threshing plate (5). A sieve plate (13) is inclinedly arranged at the bottom of the hopper (1). A discharge port (14) is provided on the hopper (1) close to the lower side of the sieve plate (13). A collection hopper (15) is provided below the sieve plate (13).

2. A high efficiency dehulling device for sunflower head harvesting as claimed in claim 1, wherein, The lower side of the sieve plate (13) is hinged to the inner wall of the hopper (1), and the other side of the sieve plate (13) is connected to the bottom end of the annular plate (3) through a second spring (16).

3. A high efficiency dehulling device for sunflower head harvesting as claimed in claim 1 wherein, The cutting blade (10) includes longitudinal blades and transverse blades installed at equal intervals, the longitudinal blades and transverse blades being perpendicular to each other.

4. A high efficiency dehulling device for sunflower head harvesting as claimed in claim 1 wherein, Two sets of the first hydraulic cylinders (6) are installed at intervals.

5. A high efficiency dehulling device for sunflower head harvesting as claimed in claim 1 wherein, The hammer (7) is covered with a rubber layer.

6. A high efficiency dehulling device for sunflower head harvesting as claimed in claim 1 wherein, The lower part of the silo (1) is provided with a discharge gate that can accommodate the collection hopper (15) to enter and exit.

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