Threshing device for corn harvester

Abstract

The utility model provides a threshing device for a corn harvester, which relates to the technical field of threshing devices and comprises a mounting frame, a feeding port arranged at the top of the mounting frame, a protective guard fixedly connected to the side face of the feeding port, a threshing roller arranged in an inner cavity of the protective guard, a vibrating screen arranged at the bottom of the threshing roller, and a cleaning component arranged in an inner cavity of the threshing roller. The sweeping assembly comprises a first supporting plate, an outer plate is arranged on the side face of the first supporting plate, an inner plate is rotationally connected to the inner wall of the outer plate, a first transmission rod is fixedly connected to the side face of the inner plate, the side face of the outer plate is fixedly connected with the side face of the protective shell, a motor is arranged at one end of the first transmission rod, and a driving module is arranged on the side face of the threshing roller. When the corn thresher is used, firstly, picked corn is fed from an inner cavity of a feeding opening, the corn falls into an inner cavity of a protective fence, at the moment, a driving module is started, a threshing roller can be driven to rotate clockwise, and then the effect of driving the corn to move forwards can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of threshing devices, in particular to a threshing device for a corn harvester. Background Art

[0002] The threshing device for corn harvesters is often used in field operations during the corn harvest season. Its core function is to efficiently separate the corn kernels from the corn cob. Through high-speed rotating threshing components, such as grooved rods or spiked rollers, friction and impact force are used to separate the corn kernels from the corn cob, achieving rapid threshing and facilitating subsequent corn kernel collection, storage and transportation operations.

[0003] In actual work, the existing technology of harvester threshing device is used in conjunction with a drum, a concave screen, a fan, etc., which can meet the basic needs of threshing corn, but there are still the following problems:

[0004] A thresher is usually used in conjunction with a harvester when working. After the corn is harvested, a large amount of corn silk and corn leaves will inevitably remain on the surface of the corn, which will cause the corn silk to be entangled during the threshing process of the corn by the threshing roller, resulting in wear and jamming of the transmission parts, greatly reducing work efficiency. For this reason, the present application provides a threshing device for a corn harvester to meet the needs. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and provide a threshing device for a corn harvester.

[0006] In order to achieve the above object, the utility model adopts the following technical solution: a threshing device for a corn harvester, comprising a mounting frame, a feeding port is provided on the top of the mounting frame, a guardrail is fixedly connected to the side of the feeding port, a threshing roller is provided in the inner cavity of the guardrail, a vibrating screen is provided at the bottom of the threshing roller, and a cleaning component is provided in the inner cavity of the threshing roller;

[0007] The cleaning assembly includes a first support plate, an outer plate is provided on the side of the first support plate, the inner wall of the outer plate is rotatably connected to the inner plate, the side of the inner plate is fixedly connected to the first transmission rod, the inner cavity of the inner plate is provided with a sliding rod, one end of the sliding rod is fixedly connected to the connecting rod, one end of the connecting rod is fixedly connected to the scraper, and the inner cavity of the scraper is provided with a grooved rod.

[0008] As a preferred embodiment, a limiting groove is provided on the side surface of the inner plate, one end of the sliding rod extends to the inner cavity of the limiting groove, and one end of the sliding rod is slidably connected to the inner cavity of the limiting groove.

[0009] The technical effect of adopting the above technical solution is that by providing the limiting groove, the sliding rod can be prompted to move toward the outside of the inner plate.

[0010] As a preferred embodiment, a groove is provided on the side of the first support plate, the side of the first support plate is rotatably connected to the inner wall of the threshing roller, the side of the first support plate is slidably connected to a slider, and one end of the sliding rod is fixedly connected to the side of the slider.

[0011] The technical effect of adopting the above technical solution is that the movement trajectory of the sliding rod can be limited by setting the slider.

[0012] As a preferred embodiment, one end of the fixing rod is fixedly connected to a turntable, a side surface of the turntable is fixedly connected to one end of the second transmission rod, and a protective shell is provided on the side surface of the turntable.

[0013] The technical effect of adopting the above technical solution is: by providing a turntable, the first transmission rod can be prompted to perform reciprocating motion.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are:

[0015] The side of the outer plate is fixedly connected to the side of the protective shell, one end of the first transmission rod is provided with a motor, and the side of the threshing roller is provided with a drive module. When in use, the picked corn is first put into the inner cavity of the feeding port, and the corn falls into the inner cavity of the protective fence. At this time, the drive module is started, which can prompt the threshing roller to rotate clockwise, thereby achieving the effect of driving the corn to move forward. Through the cooperation of the threshing rod and the threshing roller, the corn can be threshed. At this time, the motor is started, and the output shaft of the motor rotates forward, thereby driving the first transmission rod to move clockwise, thereby achieving the effect of driving the sliding rod to move toward the outside of the inner plate through the inner plate. When the sliding rod moves outward, the scraper can be driven to move through the connecting rod, thereby achieving the effect of scraping the outer surface of the threshing rod through the scraper, avoiding the entanglement of the threshing rod with corn silk and corn leaves during operation, causing damage. By setting the first support plate, the sliding rod can be supported, and by setting the outer plate, the movement trajectory of the inner plate can be limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a threshing device for a corn harvester provided by the utility model;

[0017] Figure 2 This is a schematic diagram of the internal cross-sectional structure of a threshing device for a corn harvester provided by the utility model;

[0018] Figure 3This is a schematic cross-sectional view of a cleaning assembly of a threshing device for a corn harvester provided by the utility model;

[0019] Figure 4 The utility model provides a schematic cross-sectional structural diagram of a driving assembly of a threshing device for a corn harvester.

[0020] Legend:

[0021] 1. Mounting frame; 11. Feeding port; 12. Guardrail; 13. Vibrating screen; 14. Threshing roller;

[0022] 2. Cleaning assembly; 21. First support plate; 22. Outer plate; 23. Inner plate; 24. Sliding rod; 25. Connecting rod; 26. Scraper; 27. Striker rod; 28. Limiting groove; 29. ​​First transmission rod; 210. Groove; 211. Sliding block;

[0023] 3. Driving assembly; 31. Rotating block; 32. Bump; 33. Limiting plate; 34. Fixed seat; 35. Slide; 36. Fixed block; 37. Fixed rod; 38. Turntable; 39. Second transmission rod; 310. Protective shell. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figure 1 - Figure 3 As shown, this embodiment provides a technical solution: a threshing device for a corn harvester, comprising a mounting frame 1, a feeding port 11 being provided on the top of the mounting frame 1, a guardrail 12 being fixedly connected to the side of the feeding port 11, a threshing roller 14 being provided in the inner cavity of the guardrail 12, a vibrating screen 13 being provided at the bottom of the threshing roller 14, and a cleaning assembly 2 being provided in the inner cavity of the threshing roller 14;

[0026] The cleaning assembly 2 includes a first support plate 21, an outer plate 22 is provided on the side of the first support plate 21, the inner wall of the outer plate 22 is rotatably connected to the inner plate 23, the side of the inner plate 23 is fixedly connected to the first transmission rod 29, the inner cavity of the inner plate 23 is provided with a sliding rod 24, one end of the sliding rod 24 is fixedly connected to the connecting rod 25, one end of the connecting rod 25 is fixedly connected to the scraper 26, the inner cavity of the scraper 26 is provided with a groove rod 27, the side of the inner plate 23 is provided with a limiting groove 28, the sliding rod 24 is fixedly connected to the first transmission rod 29, the inner cavity of the inner plate 23 is provided with a groove rod 27, the inner cavity ... groove rod 27, the inner cavity of the inner plate 23 is provided with a groove rod 27, the inner cavity of the inner plate 23 is provided with a limiting groove 28, the inner cavity of the inner plate 23 is provided with a groove rod 27, the inner cavity of the inner plate 23 is provided with a groove rod 27, the inner cavity of the inner plate 23 is provided with a groove rod 27, the inner cavity of the inner plate 23 is provided with a groove rod 27, the inner cavity of the inner plate 23 is provided with a groove rod 27, the inner cavity of the inner plate 23 is provided with One end extends to the inner cavity of the limiting groove 28, one end of the sliding rod 24 is slidably connected to the inner cavity of the limiting groove 28, the side of the outer plate 22 is fixedly connected to the side of the protective shell 310, one end of the first transmission rod 29 is provided with a motor, and the side of the threshing roller 14 is provided with a driving module. When in use, the picked corn is first put into the inner cavity of the feeding port 11, and the corn falls into the inner cavity of the protective fence 12. At this time, the driving module is started, which can prompt the threshing roller 14 to rotate clockwise, thereby achieving The present invention has the effect of driving the corn forward, and the corn can be threshed by cooperating with the ribbed rod 27 and the threshing roller 14. At this time, the motor is started, and the output shaft of the motor rotates forward, thereby driving the first transmission rod 29 to move clockwise, and then the sliding rod 24 can be driven to move toward the outside of the inner plate 23 through the inner plate 23. By setting the limiting groove 28, the movement trajectory of the sliding rod 24 can be limited, and the position of the sliding rod 24 is prevented from being offset during the movement, resulting in damage. When the sliding rod 24 moves outward, the scraper 26 can be driven to move by the connecting rod 25, and then the outer surface of the ribbed rod 27 can be scraped by the scraper 26, and the ribbed rod 27 can be prevented from being entangled with corn silk and corn leaves during operation, resulting in damage. By setting the first support plate 21, the sliding rod 24 can be supported, and by setting the outer plate 22, the movement trajectory of the inner plate 23 can be limited.

[0027] A step further, such as Figure 3 and Figure 4As shown: one end of the first transmission rod 29 is provided with a driving assembly 3, the driving assembly 3 comprises a rotating block 31, one end of the rotating block 31 is fixedly connected with a second transmission rod 39, the side surface of the rotating block 31 is fixedly connected with a protruding block 32, the side surface of the protruding block 32 is provided with a limiting plate 33, the side surface of one end of the limiting plate 33 is rotatably connected with a fixed seat 34, the other end of the limiting plate 33 is fixedly connected with a fixed block 36, the side surface of the fixed block 36 is fixedly connected with a fixed rod 37, one end of the fixed rod 37 is fixedly connected with a rotating disc 38, the side surface of the rotating disc 38 is fixedly connected with one end of the second transmission rod 39, the side surface of the rotating disc 38 is provided with a protective shell 310, the side surface of the limiting plate 33 is provided with a sliding groove 35, one end of the protruding block 32 extends to the inner cavity of the sliding groove 35, one end of the protruding block 32 is slidably connected with the inner cavity of the sliding groove 35, one end of the second transmission rod 39 is provided with a motor, the output shaft of the motor rotates in a positive direction, so that the rotating block 31 can move clockwise, thereby achieving the effect of driving the protruding block 32 to move clockwise along the inner cavity of the sliding groove 35, when the protruding block 32 moves clockwise, the limiting plate 33 can be driven to swing clockwise along one end of the fixed seat 34, so that the fixed block 36 can drive the fixed rod 37 to rotate clockwise, thereby achieving the effect of driving the scraper 26 to scrape the outer surface of the textured rod 27, when the protruding block 32 rotates to a certain position, the limiting plate 33 and the sliding groove 35 cooperate, so that the limiting plate 33 can be driven to swing counterclockwise, thereby achieving the effect of driving the scraper 26 to reciprocatingly scrape along the outer surface of the textured rod 27, further improving the scraping effect of the scraper 26 and improving the working efficiency.

[0028] In use, since the outer surface of the textured rod 27 directly contacts the corn, the two sides of the scraper 26 are pressed against the corn, causing the position of the scraper 26 to deviate, resulting in damage, such as Figure 3 As shown: in this scheme, the side surface of the first support plate 21 is provided with a groove 210, the side surface of the first support plate 21 is rotatably connected with the inner wall of the threshing roller 14, the side surface of the first support plate 21 is slidably connected with a sliding block 211, one end of the sliding rod 24 is fixedly connected with the side surface of the sliding block 211, by providing the groove 210, the movement of the first transmission rod 29 can be avoided to interfere with the first support plate 21, effectively improving the stability of the first transmission rod 29, by providing the sliding block 211, the sliding block 211 can provide additional support when the corn contacts and presses against the scraper 26, avoiding the position of the scraper 26 from deviating, resulting in damage.

[0029] Working principle:

[0030] As shown: Figures 1-4 As shown:

[0031] During use: first, the picked corn is put into the inner cavity of the feeding port 11, and the corn falls into the inner cavity of the guardrail 12. At this time, the driving module arranged at one end of the threshing roller 14 is started, and the threshing roller 14 cooperates with the grooved rod 27, so that the corn can be threshed. At this time, the motor arranged at one end of the second transmission rod 39 is started, and the output shaft of the motor rotates forward, so that the protrusion 32 can be driven by the rotating block 31 to move clockwise along the inner cavity of the slide groove 35, and then the limiting plate 33 can be driven to swing clockwise along one end of the fixed seat 34. When the limiting plate 33 swings clockwise, the fixed rod 37 can be driven to rotate clockwise through the fixed block 36. When the protrusion 32 rotates to a certain position, the Through the cooperation of the limit plate 33 and the slide groove 35, the limit plate 33 can be prompted to swing counterclockwise, and then the first transmission rod 29 can be driven to rotate back and forth through the fixed rod 37. When the first transmission rod 29 rotates clockwise, the sliding rod 24 can be driven to move outward along the inner cavity of the limit groove 28 through the inner plate 23, and then the scraper 26 can be driven by the connecting rod 25 to scrape and clean the outer surface of the grain rod 27. Similarly, when the first transmission rod 29 rotates counterclockwise, the limit groove 28 and the inner plate 23 cooperate to prompt the connecting rod 25 to reciprocate along the outer surface of the grain rod 27, further improving the cleaning effect of the scraper 26 and avoiding the entanglement of corn silk and the grain rod 27.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A threshing device for a corn harvester, comprising a mounting frame (1), characterized in that: A feeding port (11) is provided on the top of the mounting frame (1), a guardrail (12) is fixedly connected to the side of the feeding port (11), a threshing roller (14) is provided in the inner cavity of the guardrail (12), a vibrating screen (13) is provided at the bottom of the threshing roller (14), and a cleaning component (2) is provided in the inner cavity of the threshing roller (14); The cleaning assembly (2) includes a first support plate (21), an outer plate (22) is provided on the side of the first support plate (21), an inner plate (23) is rotatably connected to the inner wall of the outer plate (22), a first transmission rod (29) is fixedly connected to the side of the inner plate (23), a sliding rod (24) is provided in the inner cavity of the inner plate (23), one end of the sliding rod (24) is fixedly connected to a connecting rod (25), one end of the connecting rod (25) is fixedly connected to a scraper (26), and a patterned rod (27) is provided in the inner cavity of the scraper (26).

2. A threshing device for a corn harvester according to claim 1, characterized in that: A limiting groove (28) is provided on the side of the inner plate (23), one end of the sliding rod (24) extends to the inner cavity of the limiting groove (28), and one end of the sliding rod (24) is slidably connected to the inner cavity of the limiting groove (28).

3. A threshing device for a corn harvester according to claim 1, characterized in that: A groove (210) is provided on the side of the first support plate (21), the side of the first support plate (21) is rotatably connected to the inner wall of the threshing roller (14), a slider (211) is slidably connected to the side of the first support plate (21), and one end of the sliding rod (24) is fixedly connected to the side of the slider (211).

4. A threshing device for a corn harvester according to claim 1, characterized in that: A driving assembly (3) is provided at one end of the first transmission rod (29), and the driving assembly (3) includes a rotating block (31), one end of the rotating block (31) is fixedly connected to the second transmission rod (39), a side surface of the rotating block (31) is fixedly connected to a protrusion (32), a side surface of the protrusion (32) is provided with a limiting plate (33), a side surface of one end of the limiting plate (33) is rotatably connected to a fixing seat (34), the other end of the limiting plate (33) is fixedly connected to a fixing block (36), and a side surface of the fixing block (36) is fixedly connected to a fixing rod (37).

5. A threshing device for a corn harvester according to claim 4, characterized in that: One end of the fixed rod (37) is fixedly connected to a rotating disk (38), a side surface of the rotating disk (38) is fixedly connected to one end of a second transmission rod (39), and a protective shell (310) is provided on the side surface of the rotating disk (38).

6. A threshing device for a corn harvester according to claim 4, characterized in that: A sliding groove (35) is provided on the side of the limiting plate (33), one end of the protrusion (32) extends to the inner cavity of the sliding groove (35), and one end of the protrusion (32) is slidably connected to the inner cavity of the sliding groove (35).

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