Isolated corn thresher

Abstract

This utility model relates to the field of threshing machines, specifically an isolated corn threshing machine. It includes a frame, side threshing components, a drive mechanism, and an auxiliary threshing component. A feed hopper is located on the front upper part of the frame, and a mounting frame is located on the rear upper part of the frame. Two sets of side threshing components are arranged side-by-side. Each side threshing component includes a main threshing roller inclined along the front to rear of the frame, a mounting component located at the front end of the frame, a baffle rotatably mounted on the mounting component at one end, and an adjusting component mounted on the mounting frame to adjust the height of the other end of the baffle. The drive mechanism is mounted on the frame. The auxiliary threshing component includes two side rods arranged side-by-side on the inner side of the mounting shell and a second side rod arranged on the inner side of the baffle. This utility model can thresh large and small corn kernels through two separate threshing channels, ensuring that both large and small corn kernels are completely threshed.

Description

Technical Field

[0001] This utility model relates to the field of threshing machines, and in particular to an isolated corn threshing machine. Background Technology

[0002] Existing agricultural crop threshers typically form a threshing channel between the threshing roller and the baffle. The front end of the baffle is rotatably mounted, while the rear end is elastically supported. This allows for the threshing of corn. However, when threshing large and small corn kernels simultaneously, the large corn kernels push up the rear end of the baffle, preventing all the small corn kernels from being threshed. Utility Model Content

[0003] The purpose of this invention is to address the problems existing in the background technology by proposing an isolated corn threshing machine, which threshes large and small corn separately through two threshing channels, ensuring that both large and small corn can be threshed completely.

[0004] The technical solution of this utility model is an isolated corn thresher, including a frame, a side threshing assembly, a drive mechanism, and an auxiliary threshing assembly. A feed hopper is provided on the front side of the upper part of the frame, and a mounting frame is provided on the rear side of the upper part of the frame. An upward-opening mounting shell is inclinedly provided on the upper part of the frame, and a discharge hopper is connected to the bottom of the rear side of the mounting shell. Two sets of side threshing assemblies are arranged side by side. The side threshing assembly includes a main threshing roller inclinedly distributed from the front side to the rear side of the frame, a mounting assembly provided at the front end of the frame, a baffle mounted on the mounting assembly at one end, and an adjusting assembly provided on the mounting frame to adjust the height of the other end of the baffle. A threshing channel is formed between the baffle and the main threshing roller. The drive mechanism is provided on the frame and drives the main threshing roller to rotate. The auxiliary threshing assembly includes two side rods, one of which is arranged side by side on the inner side of the mounting shell and the other of which is arranged on the inner side of the baffle. The side rods are parallel to the main threshing roller.

[0005] Preferably, it also includes a central threshing assembly, which is inclinedly distributed along the front to rear side of the frame. It includes an auxiliary threshing roller located above the two main threshing rollers. The auxiliary threshing roller is parallel to the main threshing rollers and is driven by a drive mechanism. A bearing seat is provided on the frame, and a main shaft is coaxially provided on the main threshing rollers. The main shaft is rotatably mounted on the bearing seat.

[0006] Preferably, a support frame is provided on the frame, a secondary shaft is rotatably mounted on the support frame, a secondary threshing roller is coaxially mounted on the secondary shaft, a spiral threshing rib is provided on the outer periphery of the secondary threshing roller, and a spiral main threshing rib is provided on the outer periphery of the main threshing roller.

[0007] Preferably, the drive mechanism includes a drive motor mounted on the frame, a drive pulley mounted on the output end of the drive motor, two driven pulleys coaxially mounted on two main shafts, a secondary pulley coaxially mounted on a secondary shaft, and a belt fitted on the drive pulley, driven pulleys, and secondary pulley.

[0008] Preferably, the mounting assembly includes two side plates disposed on both sides of the top of the frame, an isolation frame disposed on the frame, and a second bracket disposed on the isolation frame. The baffle is rotatably disposed on the second bracket via a rotating shaft, and the outer end of the baffle is rotatably mounted on the side plate via bolts.

[0009] Preferably, the adjusting assembly includes a pressure plate located above the rear end of the baffle, an elastic component that elastically tensions the pressure plate upwards, a pressing component mounted on the mounting bracket and pressing down on the pressure plate, U-shaped rods with upward-facing openings, two springs tensioned between the U-shaped rods and the pressure plate, and two nuts threaded to both ends of the U-shaped rods. The U-shaped rod includes a connecting rod portion welded to the rear end of the baffle and two straight rod portions integrally connected to both ends of the connecting rod portion. The springs are sleeved on the outer periphery of the straight rod portions. The pressure plate has a through hole for the straight rod portions to pass through, and the nuts are located above the pressure plate.

[0010] Preferably, the elastic component includes a slide rod 1 slidably disposed on the mounting housing, a spring 1 whose two ends are respectively connected to the mounting housing and the pressure plate, a slide rod 2 slidably disposed on the isolation frame, and a spring 2 whose two ends are respectively connected to the isolation frame and the pressure plate. The spring is sleeved on the outer periphery of the slide rod 1, and the spring 2 is sleeved on the outer periphery of the slide rod 2.

[0011] Preferably, the pressing assembly includes a screw barrel disposed at the bottom of the mounting bracket, a screw rod threaded onto the screw barrel, and a handle disposed at the top of the screw rod.

[0012] Preferably, a mounting cover is provided on the top of the frame, the mounting cover is located above the baffle, and the mounting cover has a U-shaped structure with the opening facing downwards.

[0013] Preferably, the mounting frame has two rod exit gates hinged side by side at the rear end, and the two rod exit gates are located on the rear side of the two main threshing rollers respectively.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects: The present invention can thresh large corn and small corn through two separate threshing channels, ensuring that both large and small corn can be threshed completely. By adjusting the height of the rear end of the two baffles with two sets of adjustment components, the height of the rear end of one baffle is higher than that of the other baffle, so that the size of the two threshing channels is different, and they are used for threshing large corn and small corn respectively. Attached Figure Description

[0015] Figure 1 and Figure 2 This is a schematic diagram of the structure of this utility model without the addition of an auxiliary threshing roller; Figure 3 and Figure 4 A schematic diagram of the structure of this utility model when an auxiliary threshing roller is added; Figure 5 This is a partial structural cross-sectional view of the present invention; Figure 6 for Figure 5 Enlarged view of the structure at point A in the middle.

[0016] Reference numerals in the attached diagram: 1. Frame; 2. Mounting shell; 201. Discharge hopper; 3. Feed hopper; 4. Mounting cover; 5. Mounting frame; 6. Bar discharge gate; 7. Main threshing roller; 71. Main threshing rib; 8. Main shaft; 9. Bearing seat; 10. Auxiliary threshing roller; 11. Auxiliary shaft; 12. Support 1; 13. Side rod 1; 14. Isolation frame; 15. Support 2; 16. Baffle; 161. Side rod 2; 17. Rotating shaft; 18. Side plate; 19. Screw barrel; 20. Handle; 21. Screw; 22. Pressure plate; 23. Slide rod 1; 24. Spring 1; 25. Slide rod 2; 26. Spring 2; 27. U-shaped rod; 28. Nut; 29. ​​Spring 3; 30. Drive motor; 31. Driving wheel; 32. Driven wheel; 33. Auxiliary pulley; 34. Belt. Detailed Implementation

[0017] Example 1 like Figure 1 and Figure 2 As shown, the isolated corn thresher proposed in this embodiment includes a frame 1, a side threshing assembly, a drive mechanism, and an auxiliary threshing assembly.

[0018] like Figure 1 and Figure 2 As shown, a feed hopper 3 is provided on the upper front side of the frame 1. The feed hopper 3 is inclined and used to add corn to be threshed. A mounting frame 5 is provided on the upper rear side of the frame 1. A mounting shell 2 with an upward opening is inclined on the upper part of the frame 1. The mounting shell 2 is U-shaped. The threshed corn kernels fall onto the mounting shell 2 and slide backward. A discharge hopper 201 is connected to the bottom rear side of the mounting shell 2. The discharge hopper 201 can discharge the threshed corn kernels. A container for receiving corn kernels can be placed below this.

[0019] Two sets of side threshing assemblies are arranged side by side. Each side threshing assembly includes a main threshing roller 7 inclined from the front to the rear of the frame 1, a mounting assembly at the front end of the frame 1, a baffle 16 rotatably mounted on the mounting assembly at one end, and an adjusting assembly mounted on the mounting frame 5 to adjust the height of the other end of the baffle 16. The baffle 16 has an inverted U-shaped structure, forming a threshing channel between the baffle 16 and the main threshing roller 7. By adjusting the height of the lower end of the baffle 16, the size of the threshing channel can be adjusted to handle larger and smaller corn kernels respectively. The main threshing roller 7 has spiral main threshing ribs 71 on its outer periphery. The mounting assembly includes two side plates 18 on both sides of the top of the frame 1, an isolation frame 14 on the frame 1, and a second bracket 15 on the isolation frame 14. The baffle 16 is rotatably mounted on the second bracket 15 via a rotating shaft 17. The outer end of the baffle 16 is rotatably mounted on the side plate 18 by bolts. The bolts are coaxial with the rotating shaft 17, allowing the upper end of the baffle 16 to rotate smoothly. A bearing seat 9 is provided on the frame 1, and a main shaft 8 is coaxially provided on the main threshing roller 7. The main shaft 8 is rotatably mounted on the bearing seat 9 through the bearing, so the main shaft 8 can rotate smoothly and the main threshing roller 7 can thresh corn smoothly.

[0020] like Figure 2 As shown, the auxiliary threshing assembly includes two side rods 13 arranged side-by-side on the inner side of the mounting shell 2 and a second side rod 161 arranged on the inner side of the baffle 16. The side rods 13, 161 and the main threshing roller 7 are parallel. The side rod 13 is located outside the main threshing roller 7. The side rods 13, 161 and the main threshing roller 7 work together to thresh corn in multiple areas, resulting in more thorough threshing.

[0021] In addition, such as Figure 3 and Figure 4 As shown, a central threshing assembly can be added to the isolated corn thresher. This assembly is inclined along the front to rear of the frame 1 and includes a secondary threshing roller 10 located above the two main threshing rollers 7. The diameter of the secondary threshing roller 10 is smaller than that of the main threshing rollers 7, and the secondary threshing roller 10 is parallel to the main threshing rollers 7. A side rod 161 is located above the position between the main threshing rollers 7 and the secondary threshing roller 10. A support bracket 12 is mounted on the frame 1, and a secondary shaft 11 is rotatably mounted on the support bracket 12. The secondary threshing roller 10 is coaxially mounted on the secondary shaft 11. Spiral threshing ribs are provided on the outer periphery of the secondary threshing roller 10, which cooperate with the main threshing roller 7, which has main threshing ribs 71, to thresh the corn and improve the threshing effect. A grain-falling channel is formed between the main threshing rollers 7 and the secondary threshing roller 10. The threshed corn kernels fall through the grain-falling channel onto the mounting shell 2 and continue to slide down. When this thresher is running, it will also generate a certain amount of vibration, which will cause the corn kernels to slip off.

[0022] The drive mechanism is mounted on the frame 1. Without the auxiliary threshing roller 10, the drive mechanism only drives the main threshing roller 7 to rotate. With the auxiliary threshing roller 10 added, the drive mechanism drives both the main threshing roller 7 and the auxiliary threshing roller 10 to rotate simultaneously, thereby achieving the threshing of corn through the operation of the main threshing roller 7 and the auxiliary threshing roller 10. The drive mechanism includes a drive motor 30 mounted on the frame 1, a drive wheel 31 mounted on the output end of the drive motor 30, two driven wheels 32 coaxially mounted on the two main shafts 8, an auxiliary pulley 33 coaxially mounted on the secondary shaft 11, and a belt 34 fitted onto the drive wheel 31, the driven wheels 32 (and the auxiliary pulley 33). The auxiliary pulley 33 is smaller than the drive wheel 31 and the driven wheels 32. The drive motor 30 drives the drive wheel 31 to rotate. The drive wheel 31 drives the driven wheel 32 and the auxiliary pulley 33 to rotate via the belt 34. The driven wheel 32 drives the main shaft 8 to rotate, thereby realizing the rotation of the main threshing roller 7. The auxiliary pulley 33 drives the auxiliary shaft 11 to rotate, thereby realizing the rotation of the auxiliary threshing roller 10. The drive wheel 31, driven wheel 32, and auxiliary pulley 33 are all located inside the tensioned belt 34. The drive wheel 31 and driven wheel 32 can rotate smoothly. Even if the wrap angle of the auxiliary pulley 33 is small, it can still be driven by the belt 34. Furthermore, even if the belt 34 slips at the auxiliary pulley 33, there is still relative rotation between the main threshing roller 7 and the auxiliary threshing roller 10, which can still achieve the threshing of corn.

[0023] like Figures 3-5 As shown, the mounting frame 5 has two outlet gates 6 hinged side by side at its rear end, specifically hinged at the top of the outlet gates 6. The two outlet gates 6 are located behind the two main threshing rollers 7. When threshing corn, for corn cobs that have had their kernels removed, the corn cobs are pushed open by the outlet gates 6 at the rear end and discharged. After the corn cobs are discharged, the outlet gates 6 automatically reposition themselves behind the corn cobs.

[0024] A mounting cover 4 is provided on the top of the frame 1. The mounting cover 4 is located above the baffle 16. The mounting cover 4 has a U-shaped structure and the opening faces downward, covering the baffle 16 on the inside and improving the structural regularity of the entire machine.

[0025] This embodiment can thresh large and small corn kernels through two separate threshing channels, ensuring that both types of corn are threshed completely. The terms "large" and "small" are relative and do not require specific size emphasis. The key point is that this threshing machine can thresh corn of different sizes. By adjusting the rear height of the two baffles 16 using two sets of adjustment components, with one baffle 16's rear height higher than the other, the two threshing channels are of different sizes, one for large corn and one for small corn.

[0026] Example 2 like Figures 3-6As shown, the isolated corn thresher proposed in this embodiment, compared with Embodiment 1, includes an adjusting assembly comprising a pressure plate 22 located above the rear end of the baffle 16, an elastic component that elastically tensions the pressure plate 22 upwards, a pressing component mounted on the mounting frame 5 and pressing down on the pressure plate 22, U-shaped rods 27 with upward-facing openings, two springs 29 tensioned between the U-shaped rods 27 and the pressure plate 22, and two nuts 28 threadedly connected to both ends of the U-shaped rods 27. The U-shaped rod 27 includes a connecting rod portion welded to the rear end of the baffle 16 and two straight rod portions integrally connected to both ends of the connecting rod portion. The springs 29 are sleeved on the outer periphery of the straight rod portions. The pressure plate 22 has through holes for the straight rod portions to pass through, and the nuts 28 are located above the pressure plate 22. When the pressure plate 22 is pressed down by the pressing component, the elastic component lifts the pressure plate 22 upwards. The two work together to limit the maximum height of the pressure plate 22. The bottom ends of both springs 29 are tensioned at the connection between the connecting rod and the straight rod of the U-shaped rod 27. During corn threshing, the corn cob moves to the rear end of the threshing channel, slightly pushing the rear end of the baffle 16 upwards. The springs 29 are compressed, allowing the rear end of the baffle 16 to move within a certain height range, while still being able to thresh corn of the corresponding size range. When the rear end of the baffle 16 moves upwards, the baffle 16 rotates around the pivot 17, causing the U-shaped rod 27 to move upwards. The two ends of the U-shaped rod 27 move upwards at the through holes of the pressure plate 22. The through hole size is larger than the cross-sectional size of the U-shaped rod 27 but smaller than the outer contour size of the nut, preventing the U-shaped rod 27 from falling off.

[0027] like Figure 5 and Figure 6 As shown, the elastic component includes a sliding rod 23 slidably mounted on the mounting shell 2, a spring 24 connected at both ends to the mounting shell 2 and the pressure plate 22 respectively, a sliding rod 25 slidably mounted on the isolation frame 14, and a spring 26 connected at both ends to the isolation frame 14 and the pressure plate 22 respectively. When the pressure plate 22 is pressed down by the pressing component, the pressure plate 22 presses down on the springs 24 and 26, causing the sliding rod 23 to slide downwards on the mounting shell 2 and the sliding rod 25 to slide downwards on the isolation frame 14. The spring 24 is sleeved on the outer periphery of the sliding rod 23, and the spring 26 is sleeved on the outer periphery of the sliding rod 25. The two springs will not fall off and can stably extend and retract.

[0028] like Figure 6 As shown, the pressing assembly includes a screw barrel 19 located at the bottom of the mounting bracket 5, a screw rod 21 threadedly connected to the screw barrel 19, and a handle 20 located at the top of the screw rod 21. Rotating the handle 20 can drive the screw rod 21 to rotate, and the screw rod 21 can be screwed downwards or upwards on the screw barrel 19 to adjust the height of the screw rod 21. The bottom end of the screw rod 21 abuts against the top of the pressure plate 22, thereby limiting the maximum height of the pressure plate 22.

[0029] In this embodiment, the height of the pressure plate 22 can be adjusted by rotating the handle 20, thus limiting the maximum height of the pressure plate 22. Furthermore, because the spring 29 is tensioned and installed between the pressure plate 22 and the U-shaped rod 27, which is welded to the top of the rear end of the baffle 16, the height of the rear end of the baffle 16 can be adjusted, i.e., the size of the threshing channel can be adjusted, enabling this threshing machine to thresh corn within a certain size range. The two threshing channels have different sizes, allowing for thorough threshing of larger and smaller corn kernels respectively.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An isolated corn thresher, characterized in that, include: The frame (1) has a feed hopper (3) on the front side of the upper part and a mounting frame (5) on the rear side of the upper part. The upper part is inclined with an upward-facing mounting shell (2). The bottom of the rear side of the mounting shell (2) is connected to a discharge hopper (201). The side threshing assembly consists of two sets arranged side by side, including a main threshing roller (7) that is inclined along the front to rear side of the frame (1), an installation assembly set at the front end of the frame (1), a baffle (16) that is rotatably set on the installation assembly at one end, and an adjustment assembly set on the mounting frame (5) and adjusting the height of the other end of the baffle (16). A threshing channel is formed between the baffle (16) and the main threshing roller (7). The drive mechanism is set on the frame (1) and drives the main threshing roller (7) to rotate; The auxiliary threshing assembly includes two side rods (13) arranged side by side on the inner side of the mounting shell (2) and a side rod (161) arranged on the inner side of the baffle (16). The side rods (13), the side rods (161) and the main threshing roller (7) are parallel.

2. The isolated corn thresher according to claim 1, characterized in that, A bearing seat (9) is provided on the frame (1), and a main shaft (8) is coaxially provided on the main threshing roller (7). The main shaft (8) is rotatably mounted on the bearing seat (9).

3. The isolated corn thresher according to claim 2, characterized in that, It also includes a middle threshing assembly, which is inclinedly distributed along the front to rear side of the frame (1). It includes a secondary threshing roller (10) located on the upper part between the two main threshing rollers (7). The secondary threshing roller (10) is parallel to the main threshing roller (7) and is driven by a drive mechanism. A support (12) is provided on the frame (1). A secondary shaft (11) is rotatably provided on the support (12). The secondary threshing roller (10) is coaxially provided on the secondary shaft (11). Spiral threshing ribs are provided on the outer periphery of the secondary threshing roller (10). Spiral main threshing ribs (71) are provided on the outer periphery of the main threshing roller (7).

4. The isolated corn thresher according to claim 3, characterized in that, The drive mechanism includes a drive motor (30) mounted on the frame (1), a drive wheel (31) mounted on the output end of the drive motor (30), two driven wheels (32) coaxially mounted on two main shafts (8), a secondary pulley (33) coaxially mounted on the secondary shaft (11), and a belt (34) fitted on the drive wheel (31), driven wheels (32) and secondary pulley (33).

5. The isolated corn thresher according to claim 1, characterized in that, The mounting components include two side plates (18) on the top sides of the frame (1), an isolation frame (14) on the frame (1) and a bracket (15) on the isolation frame (14). The cover (16) is rotatably mounted on the bracket (15) via a pivot (17), and the outer end of the cover (16) is rotatably mounted on the side plate (18) via bolts.

6. The isolated corn thresher according to claim 5, characterized in that, The adjustment assembly includes a pressure plate (22) located above the rear end of the baffle (16), an elastic component that elastically tensions the pressure plate (22) upwards, a pressing component set on the mounting bracket (5) and pressing down the pressure plate (22), a U-shaped rod (27) with its opening facing upwards, two springs (29) tensioned between the U-shaped rod (27) and the pressure plate (22), and two nuts (28) threaded to both ends of the U-shaped rod (27). The U-shaped rod (27) includes a connecting rod portion welded to the rear end of the baffle (16) and two straight rod portions integrally connected to both ends of the connecting rod portion. The springs (29) are sleeved on the outer periphery of the straight rod portions. The pressure plate (22) has a through hole for the straight rod portions to pass through. The nuts (28) are located above the pressure plate (22).

7. The isolated corn thresher according to claim 6, characterized in that, The elastic component includes a slide rod 1 (23) slidably mounted on the mounting shell (2), a spring 1 (24) connected to the mounting shell (2) and the pressure plate (22) at both ends respectively, a slide rod 2 (25) slidably mounted on the isolation frame (14), and a spring 2 (26) connected to the isolation frame (14) and the pressure plate (22) at both ends respectively. The spring 1 (24) is sleeved on the outer periphery of the slide rod 1 (23), and the spring 2 (26) is sleeved on the outer periphery of the slide rod 2 (25).

8. The isolated corn thresher according to claim 6, characterized in that, The pressing assembly includes a screw barrel (19) located at the bottom of the mounting bracket (5), a screw rod (21) threaded onto the screw barrel (19), and a handle (20) located at the top of the screw rod (21).

9. The isolated corn thresher according to claim 1, characterized in that, The top of the frame (1) is provided with a mounting cover (4), which is located above the baffle (16). The mounting cover (4) has a U-shaped structure and the opening faces downward.

10. The isolated corn thresher according to claim 1, characterized in that, The mounting frame (5) has two rod exit gates (6) hinged side by side at the rear end, and the two rod exit gates (6) are located behind the two main threshing rollers (7).

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