A new type of corn thresher

Abstract

The utility model discloses a novel corn thresher, comprising a frame, a threshing bin, a shaking screen, a debris removal fan and a grain delivery fan; a grain inlet is arranged above the threshing bin, a threshing shaft is rotatably arranged inside the threshing bin, the lower part is connected to the shaking screen, the shaking screen is arranged on the inner side of the frame, and a multi-layer screen is designed inside the threshing bin, a material discharge port is arranged on one side of the threshing bin, and a debris discharge port is arranged on one side of the shaking screen; the debris removal fan is arranged on the side of the threshing bin away from the grain inlet and is connected to the threshing bin; the utility model has the advantages over the prior art that: during threshing, the debris removal fan and the screen are used to remove debris for multiple times; the grain delivery fan delivers the separated corn grains to the outside of the entire equipment, and the height of the grain outlet can be designed as needed; threshing, debris removal, shaking screen and grain delivery all use the same driving mechanism, saving resources.

Description

Technical Field

[0001] The utility model relates to the field of corn threshing equipment, in particular to a novel corn thresher. Background Art

[0002] Corn thresher is a machine that threshes the dried corn ears. It can separate corn kernels from stalks, and the threshing depth is adjustable. Existing corn threshers are generally composed of a feed hopper, a threshing chamber, a motor, and a swing hammer. When threshing corn, it enters the threshing chamber through the feed hopper and is threshed under the impact and beating of the high-speed rotating swing hammer. After threshing, it is classified and discharged.

[0003] But the thresher has the following defects:

[0004] 1. After threshing, corn kernels will be accompanied by a lot of corn cob debris, which requires secondary cleaning;

[0005] 2. When threshing and classifying, the screen needs another driving mechanism, which wastes resources;

[0006] 3. After threshing, the corn is usually discharged to the ground and cannot be directly transported to high-altitude transportation equipment. Utility Model Content

[0007] The utility model aims to solve the above technical problems and provides a novel corn thresher.

[0008] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a new corn thresher, comprising a frame, a threshing bin, a shaking screen, a dust removal fan and a grain delivery fan;

[0009] A grain inlet is arranged on the top of the threshing bin, a threshing shaft is arranged inside for rotation, and a shaking screen is connected below. The shaking screen is arranged on the inner side of the frame, and a multi-layer screen is designed inside. A material outlet is arranged on one side of the threshing bin, and a debris outlet is arranged on one side of the shaking screen.

[0010] The impurity exhaust fan is arranged on a side of the threshing bin away from the grain inlet and is connected to the threshing bin;

[0011] The particle conveying fan is arranged on one side of the frame and is connected to the shaking screen. An extended particle outlet is arranged on one side of the particle conveying fan.

[0012] Furthermore, a protection frame is provided on the outer side of the particle conveying fan, and the protection frame is welded to the frame to protect the particle conveying fan;

[0013] Furthermore, two impurity exhaust fans are arranged side by side, and an impurity exhaust port is arranged on one side. The impurity exhaust port and the grain outlet are in the same direction, so that it is convenient to collect impurities and corn grains in one direction.

[0014] Furthermore, the threshing shaft comprises a rotating shaft and a plurality of mounting plates, the rotating shaft passes through the mounting plates, an extrusion shaft is arranged between the mounting plates, a plurality of circular protrusions are arranged on the extrusion shaft, and four extrusion shafts are arranged between two adjacent mounting plates, so that the corn cobs can be fully extruded, and the threshing effect is better;

[0015] Furthermore, a driving mechanism is provided on one side of the frame, including a motor arranged on one side of the frame and a turntable arranged on one side of the threshing bin, the turntable is fixedly connected to the rotating shaft, the motor and the turntable are connected by a belt, and the whole structure can be driven by one motor;

[0016] Furthermore, the driving mechanism further comprises a wheel disc, one side of the shaking screen is connected to a crank mechanism, the crank mechanism rotates to connect the central axis of the wheel disc, and the wheel disc and the turntable are connected by a belt to realize the shaking of the shaking screen;

[0017] Furthermore, the shaking screen is provided with two layers of screens, the positions of the impurity outlets correspond to the two layers of screens, and the outlet on one side of the bottom of the shaking screen corresponds to the grain-feeding fan, so that multi-layer filtration can be performed to fully filter out the impurities in the corn kernels;

[0018] Furthermore, the protection frame is provided with a rotatable driven shaft, the driven shaft passes through the impurity exhaust fan and the particle delivery fan connecting shaft, the particle delivery fan is connected to the fan shaft, and a transmission belt is provided between the fan shaft and the driven shaft.

[0019] Furthermore, the shaking screen and the frame are provided with a plurality of fixed shafts which cooperate with each other, and a connecting rod is rotatably arranged between two fixed shafts at upper and lower positions.

[0020] The advantages of the utility model compared with the prior art are:

[0021] 1. When threshing, use two impurity exhaust fan stages for the first impurity exhaust to separate lighter impurities;

[0022] 2. The shaking screen is designed with multiple screens, which shake while threshing to perform secondary impurity removal;

[0023] 3. The grain-feeding fan delivers the separated corn grains to the outside of the entire equipment, and the height of the grain opening can be designed as needed;

[0024] 4. Threshing, impurity removal, shaking screening and grain feeding all use the same driving mechanism to save resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of a new type of corn thresher in the utility model. Figure 1 .

[0026] Figure 2 This is a schematic diagram of the structure of a new type of corn thresher in the utility model. Figure 2 .

[0027] Figure 3 The utility model is a schematic diagram of the structure of a shaking screen of a novel corn thresher.

[0028] Figure 4 This is a schematic diagram of the structure of a threshing shaft of a new corn thresher of the utility model. Figure 1 .

[0029] Figure 5 This is a schematic diagram of the structure of a threshing shaft of a new corn thresher of the utility model. Figure 2 .

[0030] As shown in the figure: 1. Frame; 2. Threshing bin; 201. Grain inlet; 3. Shaking screen; 301. Screen; 302. Discharge port; 303. Impurity discharge port; 4. Impurity discharge fan; 401. Impurity discharge port; 5. Grain delivery fan; 501. Grain discharge port; 502. Fan shaft; 6. Threshing shaft; 601. Rotating shaft; 602. Mounting plate; 603. Extrusion shaft; 604. Circular protrusion; 7. Driving mechanism; 701. Motor; 702. Turntable; 703. Wheel; 8. Protection frame; 801. Driven shaft; 9. Fixed shaft; 10. Connecting rod. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The working principle of this utility model:

[0034] like Figure 1 Figure 2 As shown: a novel corn thresher comprises a frame 1, a threshing bin 2, a shaking screen 3, a dust removal fan 4 and a grain delivery fan 5. A driving mechanism 7 is provided on one side of the frame 1. The driving mechanism drives the threshing shaft in the threshing bin, two dust removal fans 4, the grain delivery fan 5 and the shaking screen 3. One motor can be used to drive the threshing shaft, two dust removal fans 4, the grain delivery fan 5 and the shaking screen 3, thereby saving energy.

[0035] like Figure 1The threshing bin 2 is provided with a grain inlet 201 above, and the grain inlet is designed to be wide-mouthed, so as to facilitate the feeding of corn into the threshing bin. A threshing shaft 6 is provided inside the threshing bin 2 for rotation, and the lower part is connected to the shaking screen 3;

[0036] like Figure 4 , Figure 5 As shown, the threshing shaft 6 includes a rotating shaft 601 and a plurality of mounting plates 602, the rotating shaft 601 passes through the mounting plates 602, an extrusion shaft 603 is arranged between the mounting plates 602, a plurality of circular protrusions 604 are arranged on the extrusion shaft 603, four extrusion shafts 603 are arranged between two adjacent mounting plates 602, corn enters the gap between the extrusion shaft and the rotating shaft, and is threshed after being extruded by the circular protrusions;

[0037] The size of the rotating shaft and the extrusion shaft here can be set according to actual needs. It is best that the gap between the rotating shaft and the extrusion shaft is smaller than the size of the corn cob, so as to ensure that the corn cob can be discharged smoothly from the discharge port.

[0038] like Figure 1 As shown, a driving mechanism 7 is provided on one side of the frame 1, including a motor 701 arranged on one side of the frame 1 and a turntable 702 arranged on one side of the threshing bin 2, the turntable 702 is fixedly connected to the rotating shaft 601, and the motor 701 and the turntable 702 are connected by a belt; the driving mechanism 7 also includes a wheel 703, one side of the shaking screen 3 is connected to the crank mechanism 11, the crank mechanism 11 rotates and connects the central axis of the wheel 703, and the wheel 703 and the turntable 702 are connected by a belt.

[0039] The motor drives the turntable and the wheel disc to rotate at the same time. Since a crank mechanism is designed between the shaking screen and the wheel disc, the shaking screen can shake back and forth to achieve the purpose of filtering and separating corn kernels.

[0040] like Figure 1 , Figure 2 As shown, the shaking screen 3 and the frame 1 are provided with a plurality of fixed shafts 9 that cooperate with each other, and a connecting rod 10 is rotatably arranged between the two fixed shafts 9 at the upper and lower positions. Due to the arrangement of the fixed shafts and the connecting rod, the shaking screen shakes back and forth and will not separate from the frame;

[0041] like Figure 3As shown, the shaking screen 3 is arranged on the inner side of the frame 1, and a multi-layer screen 301 is designed inside, a discharge port 302 and a debris discharge port 303 are arranged on one side, two layers of screens 301 are arranged inside the shaking screen 3, and the position of the discharge port 302 corresponds to the two layers of screens 301, and the position of the debris discharge port 303 corresponds to the threshing bin 2, and the outlet on one side of the bottom of the shaking screen 3 corresponds to the grain-feeding fan 5, and the corn kernels after threshing and the impurities generated by extrusion fall on the screen, and the corn cobs are directly discharged along the discharge port, and the hole sizes on the upper and lower screens are designed according to actual needs, and larger impurities fall on the first and second layers of the screens and are discharged through the debris discharge port, and the corn kernels fall to the bottom of the shaking screen, and smaller and lighter impurities are discharged through the debris discharge fan;

[0042] The grain-feeding fan 5 is arranged on one side of the frame 1 and is connected to the shaking screen 3. An extended grain outlet 501 is arranged on one side of the grain-feeding fan 5. The shaking screen shakes and the corn grains are discharged along the grain outlet through the grain-feeding fan.

[0043] In order to ensure the discharge efficiency, the whole shaking screen can be set at an angle;

[0044] The impurity exhaust fan 4 is arranged on a side of the threshing bin 2 away from the grain inlet 201 and is connected to the threshing bin 2;

[0045] Two impurity exhaust fans 4 are arranged side by side, and an impurity exhaust port 401 is arranged on one side. The impurity exhaust port 401 and the particle outlet 501 are in the same direction.

[0046] A protective frame 8 is provided on the outer side of the particle conveying fan 5, and the protective frame 8 is welded to the frame 1. The protective frame 8 is provided with a driven shaft 801, and the driven shaft 801 passes through the impurity removal fan 4 and the particle conveying fan 5 to connect the rotating shaft 601. The particle conveying fan 5 is provided with a fan shaft 502, and a transmission belt is provided between the fan shaft 502 and the driven shaft 801.

[0047] Specific implementation method: start the motor, and through the connection of the belt, the rotating shaft, the wheel disc, the driven shaft and the fan shaft rotate simultaneously, the corn enters the threshing bin, is extruded and threshed by the threshing shaft, and the lighter and smaller impurities are discharged through two impurity exhaust fans. After the threshing, the corn kernels and the impurities generated by the extrusion fall on the screen, and the larger corn cobs are directly discharged through the discharge port. The larger impurities fall on the first and second layers of the screen and are discharged through the impurity discharge port. The corn kernels fall to the bottom of the shaking screen and are discharged along the grain discharge port through the grain delivery fan.

[0048] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A novel corn thresher, comprising a frame (1), characterized in that: It also includes a threshing bin (2), a shaking screen (3), a dust removal fan (4) and a grain delivery fan (5); The threshing bin (2) is provided with a grain inlet (201) at the top, a threshing shaft (6) is provided inside for rotation, and a shaking screen (3) is connected at the bottom. The shaking screen (3) is arranged on the inner side of the frame (1) and has a multi-layer screen (301) designed inside. A discharge port (302) is provided on one side of the threshing bin (2), and a debris discharge port (303) is provided on one side of the shaking screen (3); The impurity exhaust fan (4) is arranged on a side of the threshing bin (2) away from the grain inlet (201) and is connected to the threshing bin (2); The particle conveying fan (5) is arranged on one side of the frame (1) and is connected to the shaking screen (3). An extended particle outlet (501) is provided on one side of the particle conveying fan (5).

2. A novel corn thresher according to claim 1, characterized in that: A protective frame (8) is provided on the outer side of the particle conveying fan (5), and the protective frame (8) is welded to the frame (1).

3. A novel corn thresher according to claim 1, characterized in that: Two impurity exhaust fans (4) are arranged side by side, and an impurity exhaust port (401) is provided on one side. The impurity exhaust port (401) and the particle outlet (501) are in the same direction.

4. A novel corn thresher according to claim 1, characterized in that: The threshing shaft (6) comprises a rotating shaft (601) and a plurality of mounting plates (602); the rotating shaft (601) passes through the mounting plates (602); an extrusion shaft (603) is arranged between the mounting plates (602); a plurality of circular protrusions (604) are arranged on the extrusion shaft (603); and four extrusion shafts (603) are arranged between two adjacent mounting plates (602).

5. A novel corn thresher according to claim 4, characterized in that: A driving mechanism (7) is provided on one side of the frame (1), comprising a motor (701) arranged on one side of the frame (1) and a turntable (702) arranged on one side of the threshing bin (2); the turntable (702) is fixedly connected to the rotating shaft (601); and the motor (701) and the turntable (702) are connected via a belt.

6. A novel corn thresher according to claim 5, characterized in that: The driving mechanism (7) further comprises a wheel disc (703), one side of the shaking screen (3) is connected to a crank mechanism (11), the crank mechanism (11) rotates the central axis of the wheel disc (703), and the wheel disc (703) and the rotating disk (702) are connected via a belt.

7. A novel corn thresher according to claim 1, characterized in that: The shaking screen (3) is provided with two layers of screens (301), the position of the impurity outlet (303) corresponds to the two layers of screens (301), and the outlet on one side of the bottom of the shaking screen (3) corresponds to the particle conveying fan (5).

8. A novel corn thresher according to claim 2, characterized in that: The protection frame (8) is provided with a driven shaft (801), the driven shaft (801) is connected to the rotating shaft (601), the particle conveying fan (5) is provided with a fan shaft (502), and a transmission belt is provided between the fan shaft (502) and the driven shaft (801).

9. A novel corn thresher according to claim 1, characterized in that: The shaking screen (3) and the frame (1) are both provided with a plurality of fixed shafts (9) that cooperate with each other, and a connecting rod (10) is rotatably provided between two fixed shafts (9) at upper and lower positions.

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