Corn thresher

Abstract

The utility model discloses a corn thresher, and belongs to the technical field of agricultural machinery, the corn thresher comprises a base, a thresher and a vibrating screen, the thresher is arranged on the base, the vibrating screen is arranged below the thresher, the thresher comprises a shell, a first threshing roller, a second threshing roller and a motor, the lower part of the shell is fixedly connected with the base, and the first threshing roller is fixedly connected with the shell; the two ends of the first threshing roller and the two ends of the second threshing roller are rotationally connected with the shell through bearings, one end of the first threshing roller is connected with the motor through a coupler, the first threshing roller and the second threshing roller are parallel to each other, and transmission gears are arranged on the first threshing roller and the second threshing roller. The first threshing roller drives the second threshing roller to rotate through the transmission gear. According to the corn thresher, corn is fully threshed in sequence through the two threshing rollers, corn threshing is more thorough, corn kernels leak onto the vibrating screen through the cylindrical filter screen, unqualified corn kernels leak out, and high-quality corn kernels are obtained.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural machinery, and in particular to a corn thresher. Background Art

[0002] The statements in this section merely provide background technical information related to the present application and do not necessarily constitute prior art.

[0003] Patent Publication No.: CN206181854U discloses a corn thresher with a vibrating screen. The vibrating screen is arranged under the thresher to screen the threshed corn kernels to obtain high-quality corn kernels. However, this corn thresher still has some disadvantages. Corn kernels remain on the corn cobs after threshing, and the corn threshing is not thorough, resulting in waste of corn kernels. Therefore, a corn thresher with more thorough threshing is needed. Utility Model Content

[0004] In order to solve the above problems, the present application proposes a corn thresher.

[0005] The purpose of the present application is to provide a corn thresher, which uses two threshing rollers to successively thresh the corn fully, so that the corn threshing is more thorough, and the corn kernels leak through the cylindrical filter screen onto the vibrating screen, and the unqualified corn kernels leak out, and the qualified corn kernels are collected through the collecting port of the vibrating screen, so that the corn can be fully threshed, avoiding incomplete threshing of the corn and resulting in waste of corn kernels, and high-quality corn kernels can be obtained through the screening of the vibrating screen.

[0006] In order to achieve the above purpose, this application adopts the following technical solutions:

[0007] A corn thresher comprises: a base, a thresher, and a vibrating screen. The thresher is arranged on the base, and the vibrating screen is arranged below the thresher. The thresher comprises: a shell, a first threshing roller, a second threshing roller, and a motor. The shell is fixedly connected to the base below, and both ends of the first threshing roller and the second threshing roller are rotatably connected to the shell through bearings. One end of the first threshing roller is connected to the motor through a coupling. The first threshing roller and the second threshing roller are parallel to each other. The first threshing roller and the second threshing roller are provided with transmission gears, and the first threshing roller drives the second threshing roller to rotate through the transmission gear. A cylindrical filter screen is arranged outside the first threshing roller and the second threshing roller, and both ends of the cylindrical filter screen are fixedly connected to the inner wall of the shell. A feed inlet is arranged above one end of the first threshing roller, and the feed inlet is communicated with the cylindrical filter screen of the first threshing roller. The end of the cylindrical filter screen of the first threshing roller away from the feed inlet is communicated with the cylindrical filter screen of the second threshing roller. A core outlet is arranged on the shell of the second threshing roller at one end close to the feed inlet, and the core outlet discharges the threshed corn cobs.

[0008] Furthermore, the first threshing roller and the second threshing roller comprise: a roller body and a threshing rod, the threshing rod is spirally arranged on the roller body, and the spiral arrangement directions of the threshing rods on the second threshing roller and the first threshing roller are opposite.

[0009] Furthermore, a vibrating screen machine is provided on the core outlet, a guide plate is provided below the vibrating screen machine, the guide plate flows toward the vibrating screen, and the filter screen diameter of the vibrating screen machine is larger than the filter screen diameter on the vibrating screen.

[0010] Furthermore, the vibrating screen is located below the cylindrical filter, and the vibrating screen screens corn kernels. The vibrating screen includes: a plane screen, a guard plate, a sleeve, an eccentric wheel, a fixed rod, a rotating shaft, and a first pulley. The angle between the plane screen and the base is fifteen degrees, which facilitates the sliding of corn kernels. Both sides of the plane screen are fixedly connected to the guardrail. A first connecting rod is provided on the side of the guardrail away from the plane screen, and the end of the first connecting rod away from the guardrail is connected to the base through a pin shaft. A fixing rod is provided at the bottom of the plane screen, and a second connecting rod is provided on the fixing rod. The second connecting rod is connected to the outer side of the sleeve, and an eccentric wheel is provided in the sleeve. The eccentric wheel is connected to the first pulley through a rotating shaft, and the rotating shaft is rotatably connected to the outer shell through a bearing. A second pulley is provided at the end of the first threshing roller extending out of the outer shell, and the second pulley drives the first pulley to rotate through a belt.

[0011] Furthermore, a rotating wheel is provided under the base to facilitate movement.

[0012] Furthermore, a connector is provided at one end of the base, which is connected to the tractor head via the connector to facilitate movement of the entire unit.

[0013] Furthermore, the shell is provided with an observation port, through which the movement of the threshing roller can be seen.

[0014] Furthermore, a baffle is provided on the core outlet, and the baffle is connected to the shell through a hinge.

[0015] Furthermore, a collecting port is provided on a side of the vibrating screen away from the thresher, and the corn kernels are collected through the collecting port.

[0016] Compared with the prior art, the beneficial effects of this application are:

[0017] 1. The present application uses two threshing rollers to fully thresh the corn in succession, so that the corn threshing is more thorough, and the corn kernels leak through the cylindrical filter screen onto the vibrating screen, and the unqualified corn kernels leak out, and the qualified corn kernels are collected through the collecting port of the vibrating screen, so that the corn can be fully threshed, avoiding incomplete threshing of the corn, resulting in waste of corn kernels, and obtaining high-quality corn kernels.

[0018] 2. The present application sets a vibrating screen at the core outlet, which can re-vibrate and screen the corn kernels discharged from the core outlet, and finally fall into the vibrating screen for recovery, thereby avoiding the corn kernels being discharged from the core outlet and resulting in waste of corn kernels. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the main view of this application;

[0020] Figure 2 A side view of the present application;

[0021] Figure 3 It is the main cross-sectional view of this application;

[0022] Figure 4 A three-dimensional diagram of the first threshing roller of the present application;

[0023] Wherein: 1. shell, 2. feed port, 3. observation port, 4. baffle, 5. vibrating screen, 6. drainage plate, 7. vibrating screen, 8. base, 9. rotating wheel, 10. first connecting rod, 11. second pulley, 12. first pulley, 13. belt, 14. motor, 15. transmission gear, 16. first threshing roller, 17. second threshing roller, 18. cylindrical filter, 19. guard plate, 20. flat screen, 21. eccentric wheel, 22. bushing, 23. second connecting rod, 24. fixing rod, 25. roller body, 26. threshing rod. DETAILED DESCRIPTION

[0024] The present application is further described below in conjunction with the accompanying drawings and embodiments. Example

[0025] A corn thresher, such as Figure 1-4As shown, it includes: a base 8, a thresher, and a vibrating screen 7. The thresher is provided on the base 8, and the vibrating screen 7 is provided below the thresher. The thresher includes: a shell 1, a first threshing roller 16, a second threshing roller 17 and a motor 14. The shell 1 is fixedly connected to the base 8 at the bottom, and both ends of the first threshing roller 16 and the second threshing roller 17 are rotatably connected to the shell 1 through bearings. One end of the first threshing roller 16 is connected to the motor 14 through a coupling. The first threshing roller 16 and the second threshing roller 17 are parallel to each other. The first threshing roller 16 and the second threshing roller 17 are provided with a transmission gear 15. The first threshing roller 16 drives the second threshing roller 17 to rotate through the transmission gear 15. A cylindrical filter screen 18 is provided on the outer side of the first threshing roller 16 and the second threshing roller 17. Both ends of the cylindrical filter screen 18 are fixedly connected to the inner wall of the shell 1. The cylindrical filter screen 18 leaks out the corn kernels knocked down by the threshing rollers, and the corn as a whole moves with the first threshing roller 16 and the second threshing roller 17. A feed port 2 is provided above one end of the first threshing roller 16, and the feed port 2 is connected to the cylindrical filter screen 18 of the first threshing roller 16. The end of the cylindrical filter screen 18 of the first threshing roller 16 away from the feed port 2 is connected to the cylindrical filter screen 18 of the second threshing roller 17. A core outlet is provided on the shell 1 of the second threshing roller 17 near the feed port 2, and the core outlet discharges the threshed corn cobs.

[0026] The corn enters the cylindrical filter screen 18 of the first threshing roller 16 through the feed port 2. The corn collides with the first threshing roller 16 through the rotation of the first threshing roller 16. In this process, the corn kernels on the corn can be removed. At the same time, the first threshing roller 16 brings the corn to the connecting point of the two cylindrical filter screens 18, and enters the cylindrical filter screen 18 of the second threshing roller 17 through the connecting point. In this way, the corn kernels on the corn are fully threshed through the rotation of the second threshing roller 17, so that the corn kernels on the corn cob can be removed more fully.

[0027] like Figure 4 As shown, the first threshing roller 16 and the second threshing roller 17 include: a roller body 25 and a threshing rod 26, wherein the threshing rod 26 is arranged in a spiral on the roller body 25, and the spiral arrangement direction of the threshing rod 26 on the second threshing roller 17 is opposite to that on the first threshing roller 16. In this way, the corn will move along the spiral arrangement direction of the threshing rod 26 as the first threshing roller 16 and the second threshing roller 17 rotate, and the corn can be transported from the feed port 2 to the core outlet, completing the entire threshing process of the corn. Through the threshing of the two threshing rollers, the threshing is more thorough.

[0028] like Figure 1-2As shown, a vibrating screen machine 5 is provided on the core outlet, and a guide plate 6 is provided below the vibrating screen machine 5. The guide plate 6 flows to the vibrating screen 7. The filter screen diameter of the vibrating screen machine 5 is larger than the filter screen diameter on the vibrating screen 7. The corn kernels leaking out of the core outlet can be recovered by the vibrating screen machine 5, and the screened corn kernels flow to the vibrating screen 7 through the guide plate 6. The corn cobs that have not passed through the vibrating screen machine 5 are directly discharged, so that corn kernels can be avoided from being entrained in the corn cobs discharged from the core outlet, thereby avoiding the waste of corn kernels.

[0029] like Figure 3 As shown, the vibrating screen 7 is located below the cylindrical filter 18, and the vibrating screen 7 screens the corn kernels. Qualified corn kernels flow into the packaging bag from the vibrating screen 7, and unqualified corn kernels leak from the vibrating screen 7 to the base 8. The vibrating screen 7 includes: a plane screen 20, a guard plate 19, a sleeve 22, an eccentric wheel 21, a fixed rod 24, a rotating shaft, and a first pulley 12. The angle between the plane screen 20 and the base 8 is fifteen degrees, so that the corn kernels can slide down. Both sides of the plane screen 20 are fixedly connected to the guardrail, and the side of the guardrail away from the plane screen 20 is provided with a first connection Rod 10, the end of the first connecting rod 10 away from the guardrail is connected to the base 8 through a pin shaft, a fixing rod 24 is provided at the bottom of the flat screen 20, a second connecting rod 23 is provided on the fixing rod 24, the second connecting rod 23 is connected to the outer side of the sleeve 22, an eccentric wheel 21 is provided in the sleeve 22, the eccentric wheel 21 is connected to the first pulley 12 through a rotating shaft, the rotating shaft is rotatably connected to the housing 1 through a bearing, the end of the first threshing roller 16 extending out of the housing 1 is provided with a second pulley 11, and the second pulley 11 drives the first pulley 12 to rotate through a belt 13.

[0030] In this way, after the motor 14 of the thresher is started, the first threshing roller 16 drives the rotating shaft connected to the first pulley 12 to rotate through the second pulley 11, and the rotating shaft drives the eccentric wheel 21 to rotate. The eccentric wheel 21 drives the sleeve 22 to reciprocate in the sleeve 22, and the sleeve 22 drives the fixed rod 24 to reciprocate through the second connecting rod 23. The fixed rod 24 drives the plane screen 20 to reciprocate. The corn kernels are screened by the movement of the plane screen 20, and the angle of the plane screen 20 can drive the corn kernels to move toward the direction of the base 8, and finally they are collected through the collecting port on the plane screen.

[0031] A rotating wheel 9 is provided under the base 8, which facilitates movement.

[0032] One end of the base 8 is provided with a connector, which is connected to the tractor head through the connector to facilitate the movement of the whole.

[0033] The housing 1 is also provided with an observation port 3, through which the movement of the threshing roller can be seen.

[0034] The core outlet is provided with a baffle 4, which is connected to the housing 1 through a hinge. When the thresher is not turned on, the baffle 4 is closed to prevent debris or other things from entering the core outlet and affecting the operation of the thresher.

[0035] The vibrating screen 7 is provided with a collecting port on a side away from the thresher, through which the corn kernels are collected.

[0036] In the technical solution of the present application, according to the position of the corn to be processed, the base 8 is pulled by the tractor head, and the thresher is moved as a whole to the corn pile that needs to be threshed, and then the corn is put into the feed port 2, and the motor 14 is started. The motor 14 drives the first threshing roller 16 and the second threshing roller 17 to rotate, and at the same time drives the eccentric wheel 21 on the rotating shaft to rotate, and drives the vibrating screen 7 to reciprocate. After the corn enters the cylindrical filter screen 18 of the first threshing roller 16, the threshing rod 26 on the threshing roller 16 collides with the corn during the rotation of the first threshing roller 16, and the corn kernels on the corn can be taken off in this process. At the same time, the threshing rod 26 on the first threshing roller 16 6 are arranged in a spiral shape, so that the corn can be driven to move from the direction of the feed port 2 to the connecting point of the two cylindrical filter screens 18 and enter the cylindrical filter screen 18 of the second threshing roller 17. In this way, the second threshing roller 17 rotates to thresh the corn while the corn cob is discharged from the core outlet, and the corn kernels pass through the cylindrical filter screen 18 to the vibrating screen 7, and the unqualified corn kernels are leaked out. The qualified corn kernels are collected through the collecting port of the vibrating screen 7, and the threshing and screening of the corn are completed to obtain high-quality corn kernels. In this way, the corn kernels on the corn can be fully threshed through the two threshing rollers to avoid incomplete threshing of the corn kernels and waste of corn kernels.

[0037] During the threshing process, a vibrating screen 5 is arranged at the core outlet, so that the corn kernels discharged from the core outlet can be re-selected by the vibrating screen 7, and finally fall into the vibrating screen 7 for recovery, thereby avoiding the waste of corn kernels.

[0038] Although the above describes the specific implementation methods of the present application in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present application. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present application, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present application.

Claims

1. A corn thresher, characterized in that: include: A base, a thresher, and a vibrating screen. The base is provided with a thresher, and a vibrating screen is provided below the thresher. The thresher comprises: a shell, a first threshing roller, a second threshing roller, and a motor. The shell is fixedly connected to the base below. Both ends of the first threshing roller and the second threshing roller are rotatably connected to the shell through bearings. One end of the first threshing roller is connected to the motor through a coupling. The first threshing roller and the second threshing roller are parallel to each other. The first threshing roller and the second threshing roller are provided with transmission gears. The first threshing roller drives the second threshing roller to rotate through the transmission gear. A cylindrical filter screen is provided on the outer side of the first threshing roller and the second threshing roller. Both ends of the cylindrical filter screen are fixedly connected to the inner wall of the shell. A feed port is provided above one end of the first threshing roller. The feed port is communicated with the cylindrical filter screen of the first threshing roller. The end of the cylindrical filter screen of the first threshing roller away from the feed port is communicated with the cylindrical filter screen of the second threshing roller. A core outlet is provided on the shell of the second threshing roller near the feed port. The core outlet discharges the threshed corn cobs.

2. A corn thresher as claimed in claim 1, characterized in that: The first threshing roller and the second threshing roller comprise: a roller body and a threshing rod, wherein the threshing rod is spirally arranged on the roller body, and the spiral arrangement directions of the threshing rods on the second threshing roller and the first threshing roller are opposite.

3. A corn thresher as claimed in claim 1, characterized in that: A vibrating screen machine is provided on the core outlet, a guide plate is provided below the vibrating screen machine, and the flow from the guide plate flows toward the vibrating screen. The diameter of the filter screen of the vibrating screen machine is larger than the diameter of the filter screen on the vibrating screen.

4. A corn thresher as claimed in claim 1, characterized in that: The vibrating screen is located below the cylindrical filter, and the vibrating screen screens corn kernels. The vibrating screen includes: a plane screen, a guard plate, a sleeve, an eccentric wheel, a fixed rod, a rotating shaft, and a first pulley. The angle between the plane screen and the base is fifteen degrees, which facilitates the sliding of corn kernels. Both sides of the plane screen are fixedly connected to the guardrail. A first connecting rod is provided on the side of the guardrail away from the plane screen, and the end of the first connecting rod away from the guardrail is connected to the base through a pin shaft. A fixing rod is provided at the bottom of the plane screen, and a second connecting rod is provided on the fixing rod. The second connecting rod is connected to the outer side of the sleeve, and an eccentric wheel is provided in the sleeve. The eccentric wheel is connected to the first pulley through a rotating shaft, and the rotating shaft is rotatably connected to the outer shell through a bearing. A second pulley is provided at the end of the first threshing roller extending out of the outer shell, and the second pulley drives the first pulley to rotate through a belt.

5. A corn thresher as claimed in claim 1, characterized in that: A rotating wheel is arranged under the base, and the base is convenient to move via the rotating wheel.

6. A corn thresher as claimed in claim 1, characterized in that: One end of the base is provided with a connector, which is connected to the tractor head through the connector to facilitate the movement of the whole.

7. A corn thresher as claimed in claim 1, characterized in that: The shell is also provided with an observation port, through which the movement of the threshing roller can be seen.

8. A corn thresher as claimed in claim 1, characterized in that: The core outlet is provided with a baffle, and the baffle is connected to the shell through a hinge.

9. A corn thresher as claimed in claim 1, characterized in that: A collecting port is arranged on a side of the vibrating screen away from the thresher, and the corn kernels are collected through the collecting port.

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