Multifunctional sorghum thresher

Abstract

The utility model discloses a multifunctional sorghum thresher, which belongs to agricultural machinery equipment and is characterized in that double threshing cylinders are continuously arranged in the thresher, and a top cavity is arranged at the top of the second threshing cylinder. Baffles are arranged at the top positions of the rear sides of the first threshing roller and the second threshing roller, and a double-roller threshing cavity is formed. According to the multifunctional sorghum threshing machine, the continuous synchronous double-roller structure is adopted, the arc-shaped top cavity is formed in the top of the second threshing roller, the baffle of the double-roller structure is combined, a continuous double-roller threshing cavity structure is formed, the threshing effect is good, and the processing efficiency is high. The continuous double-roller structure, the induced draft fan coaxial with the rollers, the double rollers running synchronously and the grain feeding device are adopted, so that the whole structure of the machine is compact and simple, the threshing machine is suitable for threshing crops such as sorghum, soybeans, oilseed rape, rice, wheat and coix seeds, the production cost of the machine is reduced, and the competitiveness is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of agricultural equipment, concretely to a multifunctional sorghum thresher with double rollers. BACKGROUND

[0002] The sorghum thresher is an agricultural mechanical equipment for separating sorghum grains from the ear, and its threshing effect and efficiency directly affect the processing quality and production efficiency of sorghum. At present, the common sorghum threshers on the market mostly adopt single-roller threshing structure, and its working principle is to make the sorghum ear rub and impact the threshing elements (such as spikes, notched bars, etc.) through the rotation of the roller, so that the grains fall off from the ear.

[0003] However, the existing single-roller sorghum thresher has the following technical defects:

[0004] Incomplete threshing: due to the limited threshing effect of the single-roller structure, part of the sorghum grains still remains on the ear, resulting in incomplete threshing, which requires secondary threshing operation, increasing the labor intensity and time cost.

[0005] Low efficiency: after single threshing, manual screening or repeated threshing is still needed, which reduces the overall processing efficiency and is difficult to meet the needs of large-scale sorghum processing and production.

[0006] In view of the above problems, some improvement schemes have been proposed in the prior art, such as adjusting the roller speed and optimizing the layout of the threshing elements, but none of them can fundamentally solve the problems of incomplete threshing and low efficiency. Therefore, a new type of sorghum thresher is urgently needed, which can achieve higher threshing rate in a single threshing process and improve the processing efficiency to meet the needs of modern agricultural production.

[0007] Chinese patent CN 202160440 U discloses a multifunctional sorghum thresher, which is provided with a secondary threshing and screening assembly outside the waste outlet of the threshing roller, and the secondary threshing and screening assembly includes a secondary threshing roller. The secondary threshing roller of the patent is installed at the waste outlet of the primary threshing roller, which is easy to cause the sorghum grains and waste to be blocked and has the problem of poor discharge.

[0008] Therefore, the present application proposes a double-roller sorghum thresher, which optimizes the threshing structure to improve the threshing effect and processing efficiency, thereby overcoming the deficiencies of the prior art. CONTENT OF THE UTILITY MODEL

[0009] The utility model aims at overcoming the difficulties in the background art and providing a multifunctional sorghum thresher with good threshing effect.

[0010] The utility model provides a multifunctional sorghum thresher, which comprises a rack main body, the rack main body is provided with a feeding inlet and a impurity outlet, a first threshing cylinder and a second threshing cylinder are continuously arranged in the rack main body, the first threshing cylinder is arranged on the side close to the feeding inlet, the second threshing cylinder is arranged on the side close to the impurity outlet, the height of the second threshing cylinder is slightly lower than that of the first threshing cylinder, a protruding top cavity is arranged on the top of the second threshing cylinder, and a baffle is arranged on the top of the rear side of the first threshing cylinder and the second threshing cylinder to prevent the material from passing over.

[0011] Further, the top cavity is arc-shaped or rhombic.

[0012] Further, the height of the second threshing cylinder is 1-10 cm lower than that of the first threshing cylinder.

[0013] Further, a plurality of groups of threshing teeth are symmetrically arranged on the first threshing cylinder and the second threshing cylinder.

[0014] Further, a screen is arranged on the lower side of the first threshing cylinder and the second threshing cylinder, the screen is made of a circular iron wire, and the screen is provided with a fixed adjuster for adjusting the distance between the screen and the cylinder.

[0015] Further, an air blower coaxial with the second threshing cylinder is arranged on one side of the second threshing cylinder.

[0016] Further, a grain bin is arranged on the lower side of the rack main body, and a grain feeding device is arranged on the side of the air blower of the grain bin.

[0017] Further, the grain feeding device is provided with an auger shaft.

[0018] Further, the grain feeding device is connected with a grain residue separation device through a pipeline, and the grain residue separation device is connected to the air blower through an air pipe.

[0019] Further, the first threshing cylinder, the second threshing cylinder and the grain residue separation device are linked and operated through a transmission mechanism and a power mechanism.

[0020] The multifunctional sorghum thresher has the advantages that the continuous double-cylinder structure is adopted, the arc-shaped top cavity is arranged on the top of the second threshing cylinder, the baffle of the double-cylinder structure is combined to form a continuous double-cylinder threshing cavity structure, the threshing effect is good, and the processing efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Fig. 1 is a structural schematic view of the multifunctional sorghum thresher.

[0022] Figure 2 The utility model discloses a structure sectional view structure schematic view of multifunctional sorghum thresher.

[0023] Figure 3 The utility model discloses a structure schematic view of screen.

[0024] Figure 4 The utility model discloses a structure schematic view of cylinder and baffle.

[0025] In the drawing, 1, feed inlet, 2, frame main body, 3, top cavity, 4, impurity outlet, 5, induced draft fan, 6, grain residue separation device, 7, grain feeding device, 8, first threshing cylinder, 9, second threshing cylinder, 10, first baffle, 11, second baffle, 12, motor, 13, screen, 14, grain bin. DETAILED DESCRIPTION

[0026] The technical scheme of the utility model will be described clearly and completely in combination with the specific embodiments of the utility model. The described embodiments are only some embodiments of the utility model, not all. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the utility model.

[0027] It should be understood that the following terms contained in the text can be for the convenience of description and simplification of description, or only based on the relationship shown in the drawing, not indicating or implying the specific relationship, the person skilled in the art needs to make broad sense in combination with the whole text, and cannot be interpreted as the limitation of the technical scheme.

[0028] The terms indicating the orientation or position relationship such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inner", "outer". The step number terms such as "1", "2", "first", "second". The quantity term such as "one", "a", "1", "multiple". The position relationship terms such as "mounting", "connecting", "connecting".

[0029] Example 1

[0030] As Figures 1-4, multifunctional sorghum thresher, comprising a rack main body 2, the rack main body 2 is provided with a feeding port 1 and a impurity outlet 4, the basic threshing principle and operation process are similar to those of the existing thresher. The first threshing cylinder 8 and the second threshing cylinder 9 are continuously arranged in the rack main body 2, the first threshing cylinder 8 is close to the side of the feeding port 1, and the second threshing cylinder 9 is close to the side of the impurity outlet 4. The double-cylinder structure can significantly increase the threshing cavity area and increase the threshing efficiency. After the material enters the first threshing cylinder 8, it will contact the threshing teeth arranged on the cylinder and rotate with the cylinder, and then be thrown to the second threshing cylinder 9. After the material passes through the second threshing cylinder 9, it will again contact the threshing teeth arranged on the cylinder and rotate with the cylinder, and then be thrown to the impurity outlet 4. When the material contacts the high-speed rotating cylinder, the threshing effect is produced.

[0031] In the embodiment, the height of the second threshing cylinder 9 is slightly lower than that of the first threshing cylinder 8, so that when the material is thrown from the first threshing cylinder 8 to the second threshing cylinder 9, the possibility of being hit back by the adjacent side of the second threshing cylinder 9 is reduced, and the threshing cavity area of the second threshing cylinder 9 is extended to the top thereof. Further, a protruding top cavity 3 is arranged at the top of the second threshing cylinder 9, and the top cavity 3 is arc-shaped or rhombic. The threshing cavity area of the second threshing cylinder 9 can be significantly increased. The increase of the effective threshing cavity area can increase the contact times of the material with the threshing cylinder, thereby increasing the threshing efficiency.

[0032] The double-cylinder is continuously arranged, which can share the threshing cavity, so that the thresher structure is compact, the volume and cost are saved. The back side and top position of the first threshing cylinder 8 and the second threshing cylinder 9 are provided with baffles to prevent the material from passing over. The material may pass over the top of the cylinder and circulate in the threshing cavity repeatedly, which causes the material to be stuck and reduces the threshing efficiency.

[0033] The first baffle 10 is arranged at the back side of the first threshing cylinder 8, and the second baffle 11 is arranged at the back side of the second threshing cylinder 9, to prevent the material from passing over the top of the cylinder and circulating in the threshing cavity repeatedly, which causes the material to be stuck.

[0034] Embodiment 2

[0035] On the basis of embodiment 1, the height of the second threshing cylinder 9 is 1-10 cm lower than that of the first threshing cylinder 8. The height of the second threshing cylinder 9 is staggered from that of the first threshing cylinder 8 by a certain distance, which can reduce the possibility of the material being directly hit back by the adjacent side of the second threshing cylinder 9, and ensure the increase of the effective threshing area of the second threshing cylinder 9.

[0036] Further, a plurality of threshing teeth are symmetrically arranged on the first and second threshing cylinders 8 and 9. When the material contacts the threshing teeth, a beating threshing effect is generated. The lower side of the first and second threshing cylinders 8 and 9 is provided with a screen 13 made of a circular iron wire. The threshed grains of the material after contacting the threshing cylinder will fall into the grain bin 14 from the screen 13. The screen 13 made of a circular iron wire can reduce the sharp parts of the screen surface and reduce the grain breakage rate. The screen 13 is provided with a fixed adjuster for adjusting the distance between the screen 13 and the cylinder. The fixed adjuster can adopt a screw rod and screw structure to adjust the distance between the screen 13 and the cylinder, so that the best effect of not damaging the grains and clean threshing is achieved.

[0037] Further, the second threshing cylinder 9 is provided with a coaxial air blower 5 on one side. The coaxial structure of the second threshing cylinder 9 and the air blower 5 can further make the structure of the thresher compact, save the volume and cost. The lower side of the main frame 2 is provided with a grain bin 14, and the air blower 5 on one side of the grain bin 14 is provided with a grain conveying device 7. The grain conveying device 7 is provided with an auger shaft. The grain conveying device 7 is connected with a grain residue separation device 6 through a pipeline, and the grain residue separation device 6 is connected to the air blower 5 through an air pipe.

[0038] The grains entering the grain bin 14 are conveyed to one side by the auger shaft of the grain conveying device 7, and then pushed into the grain residue separation device 6 by the increasing pressure. The grain residue separation device 6 adopts air suction separation. After the grains enter, the lighter residue leaves are discharged upward by the air force of the air blower 5, and the heavier grains are discharged downward by gravity.

[0039] Further, the first and second threshing cylinders 8 and 9 and the grain residue separation device 6 are linked and operated through a transmission mechanism and a power mechanism. The transmission mechanism adopts, for example, a transmission belt or a chain, and one motor 12 can drive all the mechanisms to operate. The size of the pulley or gear of the rotating shaft can be adjusted to adjust the rotating speed. The structure of the thresher can be further compact, saving the volume and cost.

[0040] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

[0041] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A multi-functional sorghum threshing machine, comprising a frame body (2), the frame body (2) being provided with a feed inlet (1) and a discharge outlet (4), characterized in that: The frame body (2) is continuously provided with a first threshing drum (8) and a second threshing drum (9). The first threshing drum (8) is close to the feed inlet (1), and the second threshing drum (9) is close to the discharge outlet (4). The height of the second threshing drum (9) is slightly lower than that of the first threshing drum (8). The top of the second threshing drum (9) is provided with a protruding top cavity (3); Baffles are provided at the top rear side of both the first threshing drum (8) and the second threshing drum (9) to prevent material from crossing over.

2. The multi-functional sorghum thresher according to claim 1, characterized in that: The top cavity (3) is arc-shaped or rhomboid.

3. The multifunctional sorghum thresher according to claim 1, characterized in that: The height of the second threshing drum (9) is 1-10cm shorter than that of the first threshing drum (8).

4. The multi-functional sorghum thresher according to claim 1, characterized in that: Multiple sets of threshing teeth are symmetrically arranged on the first threshing drum (8) and the second threshing drum (9).

5. The multi-functional sorghum thresher according to claim 1, characterized in that: The first threshing drum (8) and the second threshing drum (9) are both provided with screens (13) on their lower sides. The screens (13) are made of round iron wire. The screens (13) are provided with a fixed adjuster for adjusting the distance between the screens (13) and the drum.

6. The multifunctional sorghum thresher according to claim 1, characterized in that: A coaxial blower (5) is provided on one side of the second threshing drum (9).

7. The multi-functional sorghum thresher according to claim 6, characterized in that: The frame body (2) is provided with a grain bin (14) on the lower side, and a grain feeding device (7) is provided on one side of the induced draft fan (5) of the grain bin (14).

8. The multifunctional sorghum thresher according to claim 7, characterized in that: The pellet feeding device (7) is equipped with an auger shaft.

9. The multifunctional sorghum thresher according to claim 7, characterized in that: The granulation device (7) is connected to the granulation separation device (6) via a pipe, and the granulation separation device (6) is connected to the induced draft fan (5) via a duct.

10. The multifunctional sorghum thresher according to claim 8, characterized in that: The first threshing drum (8), the second threshing drum (9), and the granule separation device (6) operate in conjunction with the transmission mechanism and the power mechanism.

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