CN111758401A

CN111758401A - Corn thresher

Info

Publication number: CN111758401A
Application number: CN202010875860.5A
Authority: CN
Inventors: 叶再武
Original assignee: Tiantai Baiyao Machinery Co ltd
Current assignee: Tiantai Baiyao Machinery Co ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2020-10-13

Abstract

The invention discloses a corn thresher, which comprises a rack, wherein a feeding hole is formed in one end of the rack, a discharging hole is formed in one side of the rack, a power mechanism is arranged at one end of the rack, a transmission mechanism is arranged at one side of the power mechanism, a feeding mechanism is arranged at one end of the transmission mechanism, a threshing mechanism for separating corncobs from corn kernels is arranged at the other side of the power mechanism, a material pressing mechanism is arranged at one side of the threshing mechanism, a first screening mechanism for screening the corn kernels is arranged at one side of the threshing mechanism, and a second screening mechanism for screening the corn kernels is arranged at one end of the first screening mechanism. The corn ear threshing machine can rapidly thresh a plurality of corn ears, reduces the labor intensity of operators, improves the working efficiency, reduces the breakage rate of corn kernels, and improves the quality of the corn kernels.

Description

Corn thresher

Technical Field

The invention belongs to the field of agricultural science and technology, relates to a corn processing device, and particularly relates to a corn thresher.

Background

The corn thresher mainly comprises a roller, a concave plate, a sieve, a fan, a feeding hopper, a seed sliding plate, a spiral guide rod and the like, adopts an axial-flow threshing device for discharging cobs at the end of a tangential feeding shaft, and has the problems of low threshing efficiency and high corn kernel crushing rate. For this reason, long-term research has been conducted, and various solutions have been proposed.

For example, chinese patent literature discloses a corn threshing device [ application No.: 201810451205.X ], comprises a rack, a threshing mechanism and a moving mechanism, wherein the threshing mechanism comprises a rotary drum, a slotting cutter, a threaded part and a threshing part, and ribs are arranged on the threshing part; the moving mechanism and the slotting cutter are positioned on the same side of the rotary drum, the moving mechanism comprises a propelling component, a threaded rod and an air bag, the threaded rod is coaxial with the rotary drum, a ball is arranged between the threaded component and the threaded rod, the air bag is provided with a closable exhaust port, and the periphery of the air bag is fixed with a plurality of slotting cutters; an inflation cylinder is fixed on the rack, a piston rod is fixed on a piston of the inflation cylinder, a spring is arranged in a rodless cavity of the inflation cylinder, a stirring piece is fixed on the outer wall of the rotary drum, an air inlet one-way valve and an inflation one-way valve are fixed on the side wall of the rodless cavity of the inflation cylinder, and the inflation one-way valve is communicated with the air bag. The threshing device of the scheme can be used for processing the corncobs.

Above-mentioned scheme single circulation can only thresh the process to single ear of corn, can't thresh large batch ear of corn fast, has the problem that work efficiency is not high.

Disclosure of Invention

The invention aims to solve the problems, and provides a corn thresher which enables corn ears to be close to a first threshing roller and a second threshing roller, so that threshing operation is performed quickly, meanwhile, the corn ears are closely arranged, threshing speed is increased, working efficiency is improved, and the problems in the prior art are solved.

In order to achieve the purpose, the invention adopts the following technical scheme: this corn thresher includes the frame, frame one end is equipped with the pan feeding mouth, frame one side is equipped with bin outlet, its characterized in that: frame one end is equipped with power unit, power unit one side is equipped with drive mechanism, drive mechanism one end is equipped with feeding mechanism, the power unit opposite side is equipped with the threshing mechanism who makes maize cob and kernel of corn separation, threshing mechanism one side is equipped with swager constructs, threshing mechanism one side is equipped with carries out the first sieve mechanism that sieves to the kernel of corn, first sieve mechanism one end is equipped with carries out the second sieve mechanism that sieves to the kernel of corn.

The threshing mechanism is creatively designed, the corn ears close to the first threshing roller are quickly threshed, meanwhile, the second threshing roller pushes the corn ears close to the first threshing roller to longitudinally move, the threshing time of the corn ears is prolonged, a plurality of corn ears can be threshed simultaneously, and the working efficiency is improved.

In the corn thresher, the power mechanism comprises a motor, the motor is arranged at one end of the rack, a power shaft is arranged at one end of the motor, and a first belt wheel is arranged at the other end of the power shaft.

In the corn thresher, the transmission mechanism comprises a first transmission belt, one end of the first transmission belt is sleeved at one end of the first belt wheel, the other end of the first transmission belt is sleeved with a second belt wheel, a first rotating shaft is connected in the second belt wheel, the other end of the first rotating shaft is provided with a first bevel gear, one side of the first bevel gear is provided with a second bevel gear meshed with the first bevel gear, the second bevel gear is connected in a second rotating shaft, a third belt wheel is arranged in the middle of the second rotating shaft, a second transmission belt is sleeved at the outer end of the third belt wheel, the other end of the second transmission belt is sleeved with a fourth belt wheel, and the fourth belt wheel is connected in a third rotating shaft.

In the corn thresher, the feeding mechanism comprises a push rod, the push rod is arranged at one end of the rack, a feeding cavity is arranged at one end of the rack, a first baffle is arranged in the feeding cavity at one end of the push rod, a second baffle is arranged outside the feeding cavity at the other end of the push rod, a first spring is arranged between the second baffle and the rack, a first cam is arranged at one end of a third rotating shaft, and the second baffle is attached to the outer end of the first cam.

In foretell corn thresher, threshing mechanism includes the third drive belt, a third drive belt pot head is located the first band pulley other end, third drive belt pot head is equipped with the fifth band pulley, fifth band pulley in-connection has first working shaft, the first working shaft other end is equipped with first threshing roller, first threshing roller outer end is equipped with spiral helicine first lug, fifth band pulley outer end cover is equipped with the fourth drive belt, a fourth drive belt pot head is equipped with the sixth band pulley, sixth band pulley in-connection has the second working shaft, the second working shaft other end is equipped with second threshing roller, second threshing roller outer end is equipped with a plurality of evenly distributed's second lug, second threshing roller one side is equipped with the striker plate, be equipped with a plurality of evenly distributed's through-hole on the striker plate.

In the corn thresher, the material pressing mechanism comprises a first pressing rod, a first cavity is formed in the inner wall of the rack, one end of the first pressing rod is arranged in the first cavity and provided with a first limiting plate, the first limiting plate and the rack support are provided with a second spring, the other end of the first pressing rod is provided with a first pressing plate, the first pressing plate is arranged on one side of the first threshing roller, one side of the first pressing rod is provided with a second pressing rod, one end of the second pressing rod is arranged in the first cavity and provided with a second limiting plate, the second limiting plate and the rack support are provided with a third spring, the other end of the second pressing rod is provided with a second pressing plate, and the second pressing plate is arranged on one side of the first threshing roller.

In the corn thresher, the first screening mechanism comprises a fifth transmission belt, one end of the fifth transmission belt is sleeved at the other end of the sixth belt wheel, the other end of the fifth transmission belt is provided with a seventh belt wheel, a fourth rotating shaft is connected in the seventh belt wheel, a first sliding block is arranged in the middle of the fourth rotating shaft, a second cavity is arranged at the bottom end of the inner wall of the frame, the first sliding block is arranged in the second cavity and can slide relatively, a fourth spring is arranged between the two sides of the first sliding block and the inner wall of the second cavity, one end of the first sliding block is provided with a chuck, one side of the chuck is provided with a lower screening disc, one end of the lower screening disc is provided with a clamping groove, the chuck is arranged in the clamping groove, and the other end of the lower screening disc is provided.

In the corn thresher, the second screening mechanism comprises a second cam, the second cam is arranged at the other end of the fourth rotating shaft, the other end of the second cam is provided with a connecting rod, the other end of the connecting rod is provided with a second slide block, the bottom end of the inner wall of the frame is provided with a third cavity, the second slide block is arranged in the third cavity and can slide relatively, a fifth spring is arranged between the two sides of the second slide block and the inner wall of the third cavity, the two ends of the second slide block are provided with supporting tables, an upper screening disc is arranged between the supporting tables, the two sides of the upper screening disc are respectively provided with a slide rail, one end of each supporting table is arranged in the slide rail and can slide relatively, one end of the slide rail is provided with a first groove, one end of each supporting table is provided with a second groove, a limiting block is arranged in the first groove, and, the supporting platform is fixed in position in the sliding rail, and an upper screen is arranged at one end of the upper screen tray.

Compared with the prior art, the invention has the advantages that:

1. the feeding mechanism can feed the stacked corn ears to be threshed into the threshing mechanism in sequence and arrange the corn ears into a queue, so that the subsequent threshing process is convenient to carry out, the labor intensity of operators is reduced, and the working efficiency is improved.

2. The threshing mechanism can rapidly thresh the corn ears close to the first threshing roller, has good threshing effect, reduces the breakage rate of corn kernels, and simultaneously, the second threshing roller pushes the corn ears close to the first threshing roller to move longitudinally, so that the threshing time of the corn ears can be increased, the threshing quality is improved, a plurality of corn ears arranged in a team can be threshed simultaneously, and the working efficiency is improved.

3. The material pressing mechanism can help the corn ear to tightly abut against the first threshing roller and the second threshing roller, so that the corn ear can be effectively threshed in the moving process in the threshing mechanism, and the threshing quality is improved.

4. The second screening mechanism can screen the corn kernels which are threshed, so that the corn kernels with complete grains and broken corn kernels are separated from impurities, the quality of the corn kernels is improved, and the labor intensity of operators is reduced.

5. The first screening mechanism can screen the crushed corn kernels to separate the crushed corn kernels from impurities, so that the crushed corn kernels can be conveniently subjected to subsequent processing, and the labor intensity of operators is reduced.

Drawings

FIG. 1 is a front view of a corn thresher according to the present invention.

FIG. 2 is a rear view of the corn thresher of the present invention.

FIG. 3 is a partial cross-sectional view of a corn thresher according to the present invention.

Fig. 4 is an enlarged schematic view of a portion a of fig. 3 of the corn thresher according to the present invention.

Fig. 5 is an enlarged schematic view of a portion B of fig. 1 of the corn thresher according to the present invention.

In the figure, 1, a frame; 2. a feeding port; 3. a discharge outlet; 10. a power mechanism; 11. a power mechanism; 12. a power shaft; 13. a first pulley; 20. a transmission mechanism; 21. a first drive belt; 22. a second pulley; 23. a first rotating shaft; 24. a first bevel gear; 25. a second bevel gear; 25a, a second rotation axis; 26. a third belt pulley; 27. a second belt; 28. a fourth pulley; 29. a third rotation axis; 30. a feeding mechanism; 31. a feeding cavity; 32. a push rod; 33. a second baffle; 34. a first cam; 35. a first baffle plate; 36. a first spring; 40. a material pressing mechanism; 41. a first cavity; 42. a first pressure lever; 43. a first limiting plate; 44. a second spring; 45. a first platen; 46. a second compression bar; 47. a second limiting plate; 48. a third spring; 49. a second platen; 50. a threshing mechanism; 51. a third belt; 52. a fifth belt pulley; 53. a first working shaft; 54. a first threshing roller; 54a, a first bump; 55. a fourth belt; 56. a sixth pulley; 57. a second working shaft; 58. a second threshing roller; 58a, a second bump; 59. a striker plate; 59a, a through hole; 60. a first screening mechanism; 61. a fifth belt; 62. a seventh pulley; 63. a fourth rotation axis; 64. a first slider; 64a, a fourth spring; 65. a second cavity; 66. a chuck; 67. a lower sieve tray; 68. a card slot; 69. a lower screen mesh; 70. a second screening mechanism; 71. a second cam; 72. a connecting rod; 73. a second slider; 74. a third cavity; 75. a fifth spring; 76. a support table; 77. an upper sieve tray; 78. a slide rail; 79. a first groove; 80. a second groove; 81. a limiting block; 82. and (4) screening by using a screen.

Detailed Description

As shown in fig. 1 and 2, the corn thresher of the present invention includes a frame 1, a feeding port 2 is provided at the upper end of the frame 1, a discharging port 3 is provided at the front side of the frame 1, a power mechanism 10 is provided at the upper end of the frame 1, a transmission mechanism 20 is provided at the front side of the power mechanism 10, a feeding mechanism 30 is provided at the front end of the transmission mechanism 20, a threshing mechanism 50 for separating corncob from corn kernels is provided at the lower side of the power mechanism 10, a pressing mechanism 40 is provided at the upper side of the threshing mechanism 50, a first sieving mechanism 60 for sieving corn kernels is provided at the lower side of the threshing mechanism 50, and a second sieving mechanism 70 for sieving corn kernels is provided at the upper end of the first sieving mechanism.

The power mechanism 10 comprises a motor 11, the motor 11 is arranged at the upper end of the frame 1, a power shaft 12 is arranged at the front end of the motor 11, a first belt pulley 13 is arranged at the front end of the power shaft 12, and the first belt pulley 13 is screwed with the power shaft 12.

The transmission mechanism 20 comprises a first transmission belt 21, the right end of the first transmission belt 21 is sleeved at the front end of the first belt wheel 13, the left end of the first transmission belt 21 is sleeved with a second belt wheel 22, a first rotating shaft 23 is connected in the second belt wheel 22, the second belt wheel 22 is screwed with the first rotating shaft 23, the first rotating shaft 23 is rotatably connected with the frame 1 through a bearing, a first bevel gear 24 is arranged at the front end of the first rotating shaft 23, a second bevel gear 25 meshed with the first bevel gear 24 is arranged at the lower side of the first bevel gear 24, a second rotating shaft 25a is connected in the second bevel gear 25, the second bevel gear 25 is screwed with the second rotating shaft 25a, the second rotating shaft 25a is rotatably connected with the frame 1 through a bearing, a third belt wheel 26 is arranged in the middle of the second rotating shaft 25a, the third belt wheel 26 is screwed with the second rotating shaft 25a, and a second transmission belt 27 is sleeved at the outer, the right end of the second transmission belt 27 is sleeved with a fourth belt wheel 28, a third rotating shaft 29 is connected in the fourth belt wheel 28, the fourth belt wheel 28 is screwed with the third rotating shaft 29, and the third rotating shaft 29 is rotatably connected with the frame 1 through a bearing.

As shown in fig. 4, the feeding mechanism 30 includes a push rod 32, the push rod 32 is disposed at the front end of the frame 1, the push rod 32 is rotatably connected to the frame 1 through transition fit, the front end of the frame 1 is provided with a feeding cavity 31, the rear end of the push rod 32 is disposed in the feeding cavity 31 and provided with a first baffle 35, the front end of the push rod 32 is disposed outside the feeding cavity 31 and provided with a second baffle 33, a first spring 36 is disposed between the second baffle 33 and the frame 1, the lower end of the third rotating shaft 29 is provided with a first cam 34, and the second baffle 33 is attached to the outer end of the first cam 34. The feeding mechanism 30 can send the stacked corn ears to be threshed into the threshing mechanism 50 in sequence to be arranged in a queue, so that the subsequent threshing process is convenient to carry out, the labor intensity of operators is reduced, and the working efficiency is improved

As shown in fig. 2 and 3, the threshing mechanism 50 includes a third transmission belt 51, the upper end of the third transmission belt 51 is sleeved on the rear end of the first pulley 13, the lower end of the third transmission belt 51 is sleeved with a fifth pulley 52, the fifth pulley 52 is connected with a first working shaft 53, the fifth pulley 52 is screwed with the first working shaft 53, the first working shaft 53 is rotatably connected with the frame 1 through a bearing, the rear end of the first working shaft 53 is provided with a first threshing roller 54, the first threshing roller 54 is connected with the first working shaft 53 through interference fit, the outer end of the first threshing roller 54 is provided with a spiral first bump 54a, the first bump 54a is made of elastic rubber material, the outer end of the fifth pulley 52 is sleeved with a fourth transmission belt 55, the left end of the fourth transmission belt 55 is sleeved with a sixth pulley 56, the radius of the sixth pulley 56 is smaller than the radius of the fifth pulley 52, the sixth pulley 56 is connected with a second working shaft 57, the sixth belt wheel 56 is screwed with the second working shaft 57, the second working shaft 57 is rotatably connected with the frame 1 through a bearing, the rear end of the second working shaft 57 is provided with a second threshing roller 58, the outer end of the second threshing roller 58 is provided with a large number of uniformly distributed second bumps 58a, the second bumps 58a are made of elastic rubber materials, the lower side of the second threshing roller 58 is provided with a material baffle 59, and the material baffle 59 is provided with a large number of uniformly distributed through holes 59 a. The threshing mechanism 50 can rapidly thresh the corn ears close to the first threshing roller 54, the threshing effect is good, the breaking rate of corn kernels is reduced, meanwhile, the second threshing roller 58 pushes the corn ears close to the first threshing roller 54 to move longitudinally, the threshing time of the corn ears can be increased, the threshing quality is improved, a plurality of corn ears arranged in a team can be threshed simultaneously, and the working efficiency is improved

The material pressing mechanism 40 comprises a first pressure lever 42, a first cavity 41 is arranged on the inner wall of the machine frame 1, the upper end of the first pressure lever 42 is arranged in the first cavity 41 and provided with a first limiting plate 43, the first limiting plate 43 and a support of the machine frame 1 are provided with a second spring 44, the lower end of the first pressure lever 42 is provided with a first pressure plate 45, the first pressure plate 45 is made of elastic rubber, the first pressure plate 45 is arranged on the upper side of a first threshing roller 54, the rear side of the first pressure lever 42 is provided with a second pressure lever 46, the upper end of the second pressure lever 46 is arranged in the first cavity 41 and provided with a second limiting plate 47, the second limiting plate 47 and the support of the machine frame 1 are provided with a third spring 48, the lower end of the second pressure lever 46 is provided with a second pressure plate 49, the second pressure plate 49 is made of elastic rubber, and the second pressure. The pressing mechanism 40 can help the corn ear to tightly lean against the first threshing roller 54 and the second threshing roller 58, ensure that the corn ear can effectively perform threshing work in the moving process of the threshing mechanism 50, and improve the threshing quality

As shown in fig. 3 and 5, the first screening mechanism 60 includes a fifth belt 61, the upper end of the fifth belt 61 is sleeved on the rear end of the sixth belt wheel 56, the lower end of the fifth belt 61 is provided with a seventh belt wheel 62, a fourth rotating shaft 63 is connected in the seventh belt wheel 62, the seventh belt wheel 62 is screwed with the fourth rotating shaft 63, a first slider 64 is arranged in the middle of the fourth rotating shaft 63, the fourth rotating shaft 63 is rotatably connected with the first slider 64 through a bearing, the bottom end of the inner wall of the rack 1 is provided with a second cavity 65, the first slider 64 is arranged in the second cavity 65 and can slide relatively, the first slider 64 is in clearance fit with the second cavity 65, fourth springs 64a are arranged between the two sides of the first slider 64 and the inner wall of the second cavity 65, the upper end of the first slider 64 is provided with a chuck 66, the upper side of the chuck 66 is provided with a lower screening disc 67, the lower end of the lower screening disc 67 is provided with a clamping groove 68, the chuck 66 is arranged. First screening mechanism 60 can divide the sieve to broken kernel of corn, separates broken kernel of corn and impurity, is convenient for carry out follow-up processing to broken kernel of corn, reduces operating personnel's intensity of labour.

The second sifting mechanism 70 comprises a second cam 71, the second cam 71 is arranged at the rear end of the fourth rotating shaft 63, the second cam 71 is rotatably connected with the fourth rotating shaft 63 through over-fit, a connecting rod 72 is arranged at the outer end of the second cam 71, the connecting rod 72 is rotatably connected with the second cam 71 through over-fit, a second slider 73 is arranged at the right end of the connecting rod 72, the connecting rod 72 is rotatably connected with a second slider 73 through over-fit, a third cavity 74 is arranged at the bottom end of the inner wall of the frame 1, the second slider 73 is arranged in the third cavity 74 and can slide relatively, the second slider 73 is in clearance fit with the third cavity 74, a fifth spring 75 is arranged between the two sides of the second slider 73 and the inner wall of the third cavity 74, support platforms 76 are arranged at the two ends of the second slider 73, an upper sifting disk 77 is arranged between the two support platforms 76, slide rails 78 are respectively arranged at the two sides of the upper sifting disk 77, the supporting platform 76 is in clearance fit with the sliding rail 78, a first groove 79 is formed in the upper end of the sliding rail 78, a second groove 80 is formed in the inner end of the supporting platform 76, a limiting block 81 is arranged in the first groove 79, when the lower end of the limiting block 81 is arranged in the second groove 80, the supporting platform 76 is fixed in position in the sliding rail 78, and an upper screen 82 is arranged at the upper end of the upper screen plate 77. The second screening mechanism 70 can screen the corn kernels which are threshed, and separate the complete corn kernels, the broken corn kernels and impurities, so that the quality of the corn kernels is improved, and the labor intensity of operators is reduced

The specific operation mode of the specific embodiment of the invention is as follows: the power supply of the motor 11 is external, the power supply of the motor 11 is started, the motor 11 drives the first belt wheel 13 to rotate by driving the power shaft 12, the first belt wheel 13 transmits power to the second belt wheel 22 by driving the first transmission belt 21, the second belt wheel 22 drives the first bevel gear 24 to rotate by driving the first rotation shaft 23, the first bevel gear 24 drives the second bevel gear 25 engaged with the first bevel gear to rotate, the second bevel gear 25 drives the third belt wheel 26 to rotate by driving the second rotation shaft 25a, the third belt wheel 26 transmits power to the fourth belt wheel 28 by driving the second transmission belt 27, the fourth belt wheel 28 drives the first cam 34 to rotate by driving the third rotation shaft 29, the rotation of the first cam 34 drives the push rod 32 to move back and forth, the corn ears to be threshed put from the feeding port 2 are accumulated in the feeding cavity 31, the second baffle 33 at the front end of the push rod 32 pushes the corn ears into the rack 1 orderly along with the back and forth movement of the push rod, in addition, the first belt wheel 13 transmits power to the fifth belt wheel 52 through the third transmission belt 51, the fifth belt wheel 52 drives the first working shaft 53 to rotate, the first threshing roller 54 on the first working shaft 53 rotates along with the first belt wheel, meanwhile, the fifth belt wheel 52 transmits power to the sixth belt wheel 56 through the fourth transmission belt 55, the sixth belt wheel 56 drives the second working shaft 57 to rotate, the second threshing roller 58 on the second working shaft 57 rotates along with the second threshing roller, the corn ear falls between the first threshing roller 54 and the second threshing roller 58, the first pressing plate 45 at the upper end of the corn ear makes the corn ear abut against the first threshing roller 54 and the second threshing roller 58 under the action of the second spring 44, the first bump 54a on the first threshing roller 54 rotating rapidly threshes the corn ear, meanwhile, the second bump 58a in a thread shape on the second threshing roller 58 rotating slowly pushes the corn ear to move forwards, the corn ear shaft which is threshed briefly moves to the lower end of the second pressing rod 46, the second pressure lever 46 causes the corn cob to be tightly leaned against the first threshing roller 54 and the second threshing roller 58 under the action of the third spring 48, the residual corn kernels on the corn cob are threshed, the subsequent corn cobs fall down in sequence to perform a threshing action, the corn kernels which complete the threshing action fall on the upper sieve 82 through the through holes 59a, the corn cob is discharged out of the frame 1 through the discharge opening 3, in addition, the sixth belt pulley 56 transmits power to the seventh belt pulley 62 through the fifth transmission belt 61, the seventh belt pulley 62 drives the second cam 71 to rotate through the fourth rotating shaft 63, the second cam 71 drives the connecting rod 72 to move, the first sliding block 64 and the second sliding block 73 move left and right repeatedly under the movement of the connecting rod 72, the support platform 76 is fixed in the slide rail 78 under the action of the limit block 81, the second sliding block 73 drives the upper sieve tray 77 to move through the support platform 76, the upper sieve 82 in the upper sieve tray 77 moves left and right repeatedly with a small amplitude, the kernel of corn to going up on the sieve 82 divides the sieve, broken kernel of corn and foreign particles fall on screen cloth 69 through last screen cloth 82, first slider 64 drives sieve tray 67 through chuck 66 of card income draw-in groove 68 and removes down simultaneously, lower sieve 69 in the sieve tray 67 carries out the left and right sides of small circle and removes repeatedly thereupon, foreign particles fall in sieve tray 67 bottom down through sieve cloth 69 down, accomplish and close motor 11 power behind the work of threshing, can take out last sieve tray 77 after extracting stopper 81, then can take out lower sieve tray 67, collect the kernel of corn.

The specific embodiments described herein are merely illustrative of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the terms of power shaft, first belt wheel, first transmission belt, first rotation shaft, feeding cavity, push rod, first baffle, first pressing plate, first pressing rod, material baffle, supporting table, slide rail, clamping groove, chuck, first limiting plate, limiting block, first working shaft, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.

Claims

1. The utility model provides a corn thresher, includes frame (1), frame (1) one end is equipped with pan feeding mouth (2), frame (1) one side is equipped with bin outlet (3), its characterized in that: frame (1) one end is equipped with power unit (10), power unit (10) one side is equipped with drive mechanism (20), drive mechanism (20) one end is equipped with feeding mechanism (30), power unit (10) opposite side is equipped with threshing mechanism (50) that make maize cob and kernel of corn separate, threshing mechanism (50) one side is equipped with swager constructs (40), threshing mechanism (50) one side is equipped with first branch sieve mechanism (60) that carry out the screening to the kernel of corn, first branch sieve mechanism (60) one end is equipped with carries out the second branch sieve mechanism (70) that screens to the kernel of corn.

2. The corn thresher of claim 1, wherein: the power mechanism (10) comprises a motor (11), the motor (11) is arranged at one end of the rack (1), a power shaft (12) is arranged at one end of the motor (11), and a first belt wheel (13) is arranged at the other end of the power shaft (12).

3. The corn thresher of claim 2, wherein: the transmission mechanism (20) comprises a first transmission belt (21), one end of the first transmission belt (21) is sleeved at one end of the first belt wheel (13), the other end of the first transmission belt (21) is sleeved with a second belt wheel (22), a first rotating shaft (23) is connected in the second belt wheel (22), a first bevel gear (24) is arranged at the other end of the first rotating shaft (23), a second bevel gear (25) meshed with the first bevel gear (24) is arranged at one side of the first bevel gear (24), a second rotating shaft (25 a) is connected in the second bevel gear (25), a third belt wheel (26) is arranged in the middle of the second rotating shaft (25 a), the outer pot head of third band pulley (26) is equipped with second drive belt (27), the other pot head of second drive belt (27) is equipped with fourth band pulley (28), third rotation axis (29) is connected in fourth band pulley (28).

4. The corn thresher of claim 1, wherein: feeding mechanism (30) include push rod (32), push rod (32) are located frame (1) one end, frame (1) one end is equipped with material conveying chamber (31), push rod (32) one end is located just be equipped with first baffle (35) in material conveying chamber (31), push rod (32) other end is located material conveying chamber (31) are outer and be equipped with second baffle (33), second baffle (33) with be equipped with first spring (36) between frame (1), third rotation axis (29) one end is equipped with first cam (34), second baffle (33) with the laminating of first cam (34) outer end.

5. The corn thresher of claim 2, wherein: threshing mechanism (50) includes third drive belt (51), third drive belt (51) pot head is located first band pulley (13) other end, third drive belt (51) other pot head is equipped with fifth band pulley (52), fifth band pulley (52) in-connection has first working shaft (53), fifth band pulley (52) with first working shaft (53) screw thread is closed soon, first working shaft (53) with frame (1) rotatable coupling, first working shaft (53) other end is equipped with first threshing roller (54), first threshing roller (54) outer end is equipped with spiral helicine first lug (54 a), fifth band pulley (52) outer pot head is equipped with fourth drive belt (55), fourth drive belt (55) other pot head is equipped with sixth band pulley (56), sixth band pulley (56) in-connection has second working shaft (57), sixth band pulley (56) with second working shaft (57) screw thread closes soon, second working shaft (57) with frame (1) rotatable coupling, second working shaft (57) other end is equipped with second threshing roller (58), second threshing roller (58) outer end is equipped with a plurality of evenly distributed's second lug (58 a), second threshing roller (58) one side is equipped with striker plate (59), be equipped with a plurality of evenly distributed's through-hole (59 a) on striker plate (59).

6. The corn thresher of claim 5, wherein: the material pressing mechanism (40) comprises a first pressing rod (42), a first cavity (41) is formed in the inner wall of the rack (1), one end of the first pressing rod (42) is arranged in the first cavity (41) and provided with a first limiting plate (43), a second spring (44) is arranged on the first limiting plate (43) and the rack (1) support, a first pressing plate (45) is arranged at the other end of the first pressing rod (42), the first pressing plate (45) is arranged on one side of the first threshing roller (54), a second pressing rod (46) is arranged on one side of the first pressing rod (42), one end of the second pressing rod (46) is arranged in the first cavity (41) and provided with a second limiting plate (47), a third spring (48) is arranged on the second limiting plate (47) and the rack (1) support, a second pressing plate (49) is arranged at the other end of the second pressing rod (46), the second pressing plate (49) is arranged on one side of the first threshing roller (54).

7. The corn thresher of claim 5, wherein: the first screening mechanism (60) comprises a fifth transmission belt (61), one end of the fifth transmission belt (61) is sleeved at the other end of the sixth belt wheel (56), the other end of the fifth transmission belt (61) is provided with a seventh belt wheel (62), a fourth rotating shaft (63) is connected in the seventh belt wheel (62), the seventh belt wheel (62) is in threaded screwing with the fourth rotating shaft (63), a first sliding block (64) is arranged in the middle of the fourth rotating shaft (63), the fourth rotating shaft (63) is rotatably connected with the first sliding block (64), a second cavity (65) is arranged at the bottom end of the inner wall of the rack (1), the first sliding block (64) is arranged in the second cavity (65) and can slide relatively, a fourth spring (64 a) is arranged between two sides of the first sliding block (64) and the inner wall of the second cavity (65), and a chuck (66) is arranged at one end of the first sliding block (64), chuck (66) one side is equipped with down sieve dish (67), sieve dish (67) one end is equipped with draw-in groove (68) down, chuck (66) are located in draw-in groove (68), sieve dish (67) other end is equipped with down screen cloth (69) down.

8. The corn thresher of claim 7, wherein: the second screening mechanism (70) comprises a second cam (71), the second cam (71) is arranged at the other end of the fourth rotating shaft (63), the second cam (71) is rotatably connected with the fourth rotating shaft (63), a connecting rod (72) is arranged at the other end of the second cam (71), the connecting rod (72) is rotatably connected with the second cam (71), a second sliding block (73) is arranged at the other end of the connecting rod (72), the connecting rod (72) is rotatably connected with the second sliding block (73), a third cavity (74) is arranged at the bottom end of the inner wall of the rack (1), the second sliding block (73) is arranged in the third cavity (74) and can slide relatively, a fifth spring (75) is arranged between two sides of the second sliding block (73) and the inner wall of the third cavity (74), and support tables (76) are arranged at two ends of the second sliding block (73), be equipped with sieve tray (77) between brace table (76), sieve tray (77) both sides respectively are equipped with slide rail (78) on going up, brace table (76) one end is located but slide in slide rail (78), slide rail (78) one end is equipped with first recess (79), brace table (76) one end is equipped with second recess (80), be equipped with stopper (81) in first recess (79), work as stopper (81) other end is located when in second recess (80), brace table (76) are in position is fixed in slide rail (78), it is equipped with screen cloth (82) to go up sieve tray (77) one end.