CN116349504B - Corn thresher with screening function - Google Patents
Corn thresher with screening function Download PDFInfo
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- CN116349504B CN116349504B CN202310599043.5A CN202310599043A CN116349504B CN 116349504 B CN116349504 B CN 116349504B CN 202310599043 A CN202310599043 A CN 202310599043A CN 116349504 B CN116349504 B CN 116349504B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F11/00—Threshing apparatus specially adapted for maize; Threshing apparatus specially adapted for particular crops other than cereals
- A01F11/06—Threshing apparatus specially adapted for maize; Threshing apparatus specially adapted for particular crops other than cereals for maize, e.g. removing kernels from cobs
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/10—Feeders
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/44—Grain cleaners; Grain separators
- A01F12/446—Sieving means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention relates to the technical field of corn threshing machines and discloses a corn threshing machine with a screening function, which comprises a machine case, wherein a corn cob discharging port is formed in one side of the machine case, a support is arranged at the bottom of the machine case, a feeding hopper is sleeved on one side of the top of the machine case, a discharging port is formed in the lower part of the rear side of the machine case, an arc-shaped screen plate is sleeved in the middle of an inner cavity of the machine case, a screening screen plate is arranged in the discharging port, and a feeding component is arranged on the other side of the machine case. The other side through the machine case is provided with a feeding component, the motor rotates with the drum shaft through the third belt transmission group, when the drum shaft rotates to thresh corn in the machine case, the first bevel gear, the second bevel gear, the third rack and the limiting plate are utilized to drive the rotating rod to intermittently reciprocate, so that the support frame and the feeding hopper are driven to intermittently reciprocate to and fro, and the feeding hopper can be in a low position, so that the corn is conveniently moved into the feeding hopper, and the corn in the feeding hopper is conveniently and automatically conveyed into the feeding hopper.
Description
Technical Field
The invention relates to the technical field of corn threshing machines, in particular to a corn threshing machine with a screening function.
Background
The corn thresher is used for threshing the dried corn ears. Most of them are axial-flow drums, and also have vertical threshing trays. The threshing machine has the characteristics of high production efficiency, good threshing quality, simple and convenient operation, simple structure, firmness, durability, reliable work, convenient use and maintenance and the like, so the threshing machine is popular with farmers for a long time.
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. It adopts an axial flow threshing device which is fed into the shaft end tangentially and is used for discharging cob. The process flow comprises the following steps: the corn cob enters the roller through the feeding hopper, and is threshed under the impact of the high-speed rotary roller and the interaction of the corn cob, the roller and the concave plate. Most of the removed seeds and fine impurities pass through the concave plate holes, and air flow cleaning is carried out by a fan. Light impurities are blown out from the impurity discharging port, and seeds slide out of the machine through the seed slide plate. The cob moves backwards along the axial direction of the roller, and is discharged out of the machine through the outlet, and part of seeds entrained in the cob leak down through the sieve holes and enter the seed sliding plate to slide out of the machine.
The feeding hopper on the existing corn thresher is arranged at the top of the corn thresher, when the corn thresher is used, a user is required to carry corn into the feeding hopper, one corn is not heavy, and when a plurality of corns are carried into the feeding hopper together, more effort is required to be consumed by the user, so that the labor degree of the user is increased.
Disclosure of Invention
The invention aims to provide a corn thresher with a screening function, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the corn thresher with the screening function comprises a case, a corn cob discharging port is formed in one side of the case, a bracket is arranged at the bottom of the case, a feeding hopper is sleeved on one side of the top of the case, a discharging port is formed in the lower portion of the rear side of the case, an arc-shaped screen plate is sleeved in the middle of an inner cavity of the case, a screening screen plate is arranged in the discharging port, a feeding component is arranged on the other side of the case, a roller shaft is rotatably sleeved on the upper portion of the case, the bottom of the case is connected with a motor by a connecting component, the output end of the motor is in transmission connection with the roller shaft by a third belt transmission group, the feeding component comprises a rotating rod, the front side and the rear side of the case are rotatably sleeved with the rotating rod, a supporting frame is fixedly sleeved on the outer side of the rotating rod, a feeding hopper is arranged on one side of the supporting frame, a sloping plate is arranged on one side of the feeding hopper, the first bevel gear is arranged at one end of the roller shaft, the first supporting plate positioned at the front side of the roller shaft is arranged at the other side of the machine case, the first connecting rod is rotatably sleeved at one side of the first supporting plate, the second bevel gear meshed with the first bevel gear is arranged at the rear end of the first connecting rod, the first half gear is arranged at the front end of the first connecting rod, the second half gear is arranged at the front side of the first half gear, the limiting plate positioned right in front of the first supporting plate is slidably sleeved at the front side of the other side of the machine case, the square frame positioned at the outer sides of the first half gear and the second half gear is arranged at one side of the limiting plate, the first rack is arranged at the rear side of the top of the inner cavity of the square frame, the second rack is arranged at the front side of the bottom of the inner cavity of the square frame, the third rack is arranged at the bottom of the square frame, the second supporting plate located under the limiting plate is installed on the other side of the case, a second connecting rod is rotatably connected to one side of the second supporting plate, a whole gear meshed with a third rack is sleeved on the rear side of the second connecting rod, the front side of the second connecting rod is in transmission connection with one rotating rod through a first belt transmission group, and a shell located on the outer side of the square frame and the outer side of the first belt transmission group is installed on the other side of the case.
As a further improvement of the invention, the feeding assembly is arranged on the feeding hopper and comprises support plates which are respectively arranged on the front side and the rear side of the feeding hopper far away from the side surface of the support frame, one side of each support plate is rotationally connected with a cross rod, the outer side of each cross rod is provided with a rotating plate, the bottom of the feeding hopper is provided with a secondary moving wheel, a rotating shaft on the secondary moving wheel is in transmission connection with the front side of the cross rod by a second belt transmission group, the four corners of the bottom of the support frame are respectively provided with a main moving wheel, and one side of the case is respectively provided with handles positioned on the front side and the rear side below the corn cob discharging opening.
As a further improvement of the invention, the bottommost part of the secondary moving wheel is parallel to the bottom of the sloping plate when the bottom of the sloping plate is contacted with the ground.
As a further improvement of the invention, the connecting component comprises a top plate, the top of the motor is provided with the top plate, the top of the top plate is provided with the damper, the top end of the damper is arranged on the bottom of the case, the outer side of the damper is movably sleeved with a first spring, two ends of the first spring are respectively arranged on the top of the top plate and the bottom of the case, the rear side of the motor is provided with a side plate, the top of the side plate is provided with a telescopic rod, the top of the telescopic rod is arranged on the bottom of the screen separating plate, the outer side of the telescopic rod is movably sleeved with a second spring, and two ends of the second spring are respectively arranged on the top of the side plate and the bottom of the screen separating plate.
As a further improvement of the invention, four corners of the top of the side plate are respectively provided with a telescopic rod and a second spring, and four corners of the top plate are respectively provided with a damper and a first spring.
As a further improvement of the invention, the included angle between the whole screening plate and the bottom of the inner cavity of the case is thirty degrees, and the rear side of the screening plate extends out of the case from the discharge hole.
As a further improvement of the present invention, the first rack and the second rack inside the square frame can be meshed with the external teeth of the first half gear and the external teeth of the second half gear, respectively, the front side of the first half gear and the rear side of the second rack are on the same vertical plane, and the rear side of the second half gear and the front side of the first rack are on the same vertical plane.
As a further improvement of the present invention, the first half gear and the second half gear are the same size, and the second half gear is rotated thirty degrees clockwise relative to the first half gear.
As a further development of the invention, the external teeth of the first half gear do not contact the second rack when the external teeth of the first half gear contact the first rack.
Compared with the prior art, the invention has the beneficial effects that:
1. this corn thresher with divide sieve function is equipped with feeding subassembly through the opposite side of quick-witted case, utilizes third belt drive group and drum axle rotation at the motor, when the drum axle rotates and threshes the maize of quick-witted incasement, utilizes first bevel gear, second bevel gear, third rack and limiting plate to drive the reciprocal rotation of dwang intermittent type formula to drive support frame and the reciprocal round trip rotation of feeder hopper intermittent type formula, because the feeder hopper can be in the low level, conveniently move the maize in the feeder hopper, in the automatic maize of being convenient for in the feeder hopper is carried to the feeding hopper.
2. This corn thresher with divide sieve function is equipped with feeding subassembly on through the feeder hopper, when the user promotes this machine to remove, can drive the epaxial pivot of secondary removal wheel rotatory, because utilize the second belt drive group to drive horizontal pole and rotating plate rotation between secondary removal wheel and the horizontal pole, in being convenient for carry the subaerial maize to the feeder hopper, conveniently along with the feeder hopper is rotatory, send the maize in the feeder hopper.
3. This corn thresher with divide sieve function utilizes attenuator and first spring and telescopic link and second spring respectively with the bottom of quick-witted case and divide the bottom of sieve screen plate to be connected, and the vibrations that produce when the motor operation can drive divides the sieve screen plate to shake, is convenient for divide separating between kernel of corn and the piece on the sieve screen plate, reduces from dividing the broken and broken in the exhaust kernel of corn in the sieve screen plate, reaches the effect of dividing the sieve.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the whole structure of a corn thresher with screening function of the present invention;
FIG. 2 is a back view of a corn thresher with a sifting function of the present invention;
FIG. 3 is a schematic view of the rear view of a feeding assembly of a corn thresher with a sifting function according to the present invention;
FIG. 4 is a schematic view of the front view of a feeding assembly of a corn thresher with a sifting function according to the present invention;
FIG. 5 is a cross-sectional view of a housing of a corn thresher with a sifting function of the present invention;
FIG. 6 is an exploded view of the first half gear and first rack of a corn thresher with a sifting function of the present invention;
FIG. 7 is a schematic view of a feed assembly of a corn thresher with a sifting function according to the present invention;
fig. 8 is a schematic structural view of a connecting assembly of a corn thresher with screening function according to the present invention.
In the figure: 1. a chassis; 2. corn cob discharging openings; 3. a feeding hopper; 4. a discharge port; 5. screening screen plates; 6. a connection assembly; 601. a top plate; 602. a damper; 603. a first spring; 604. a side plate; 605. a telescopic rod; 606. a second spring; 7. a motor; 8. a feeding assembly; 801. a rotating lever; 802. a support frame; 803. a feed hopper; 804. a sloping plate; 805. a first bevel gear; 806. a first support plate; 807. a first connecting rod; 808. a second bevel gear; 809. a first half gear; 810. a second half gear; 811. a limiting plate; 812. a square frame; 813. a first rack; 814. a second rack; 815. a third rack; 816. a second support plate; 817. a second connecting rod; 818. a gear wheel; 819. a first belt drive set; 820. a housing; 9. a feed assembly; 91. a support plate; 92. a cross bar; 93. a second belt drive set; 94. a rotating plate; 10. a third belt drive set; 11. a drum shaft; 12. a bracket; 13. a handle; 14. a secondary movement wheel; 15. a main moving wheel; 16. an arc-shaped screen plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, the invention provides a corn thresher with screening function, comprising a machine case 1, wherein one side of the machine case 1 is provided with a corn cob discharging port 2, the bottom of the machine case 1 is provided with a bracket 12, one side of the top of the machine case 1 is sleeved with a feeding hopper 3, the lower part of the rear side of the machine case 1 is provided with a discharging port 4, the middle part of the inner cavity of the machine case 1 is sleeved with an arc-shaped screen 16, the discharging port 4 is internally provided with a screening plate 5, the other side of the machine case 1 is provided with a feeding component 8, the upper part of the machine case 1 is rotatably sleeved with a roller shaft 11, the bottom of the machine case 1 is connected with a motor 7 by a connecting component 6, the output end of the motor 7 is in transmission connection with the roller shaft 11 by a third belt transmission group 10, the belt transmission group consists of two belt pulleys and a belt, the feeding component 8 comprises a rotary rod 801, the front side and the rear side of the machine case 1 are rotatably sleeved with the rotary rod 801, the outer side of the rotary rod 801 is fixedly sleeved with a supporting frame 802, a feed hopper 803 is arranged on one side of the supporting frame 802, a sloping plate 804 is arranged on one side of the feed hopper 803, a first bevel gear 805 is arranged on one end of the drum shaft 11, a first supporting plate 806 is arranged on the other side of the chassis 1, a first connecting rod 807 is rotatably sleeved on one side of the first supporting plate 806, the first connecting rod 807 and the drum shaft 11 are vertically distributed, a second bevel gear 808 meshed with the first bevel gear 805 is arranged at the rear end of the first connecting rod 807, a first half gear 809 is arranged at the front end of the first connecting rod 807, a second half gear 810 is arranged at the front side of the first half gear 809, a limit plate 811 is sleeved on the front side of the other side of the chassis 1, square frames 812 positioned on the outer sides of the first half gear 809 and the second half gear 810 are arranged on one side of the limit plate 811, a first rack 813 is arranged on the rear side of the top of the inner cavity of the square frames 812, the second rack 814 is installed to the front side of square frame 812 inner chamber bottom, third rack 815 is installed to the bottom of square frame 812, the second backup pad 816 that is located first backup pad 806 below is installed to the opposite side of quick-witted case 1, one side rotation of second backup pad 816 is connected with second connecting rod 817, the rear side of second connecting rod 817 cup joints the whole gear 818 with the meshing of third rack 815, the front side of second connecting rod 817 utilizes first belt drive group 819 to be connected with one of them dwang 801 transmission, the shell 820 that is located square frame 812 and the outside of first belt drive group 819 is installed to the opposite side of machine case 1.
In one embodiment of the invention, a feeding component 9 is arranged on a feeding hopper 803, the feeding component 9 comprises support plates 91 respectively arranged on the front side and the rear side of one side of the feeding hopper 803, a cross rod 92 is rotatably connected to one side of the support plates 91, a rotating plate 94 is arranged on the outer side of the cross rod 92, a secondary moving wheel 14 is arranged at the bottom of the feeding hopper 803, a rotating shaft on the secondary moving wheel 14 is in transmission connection with the front side of the cross rod 92 by a second belt transmission group 93, the four corners of the bottom of a support 12 are respectively provided with a main moving wheel 15, and handles 13 are respectively arranged on the front side and the rear side of one side of a chassis 1.
Specifically, be equipped with feeding subassembly 9 on through feeder hopper 803, when the user promotes this machine to remove, can drive the pivot rotation on the secondary removal wheel 14, because utilize second belt drive group 93 to drive horizontal pole 92 and revolving plate 94 rotation between secondary removal wheel 14 and the horizontal pole 92, in being convenient for carry the subaerial maize feeder hopper 803, in the convenience is along with feeder hopper 803 rotation, in feeding hopper 3 is carried to the maize.
In one embodiment of the present invention, the bottommost portion of secondary moving wheel 14 is parallel to the bottom portion of swash plate 804 when the bottom portion of swash plate 804 is in contact with the ground.
In one embodiment of the present invention, the connection assembly 6 includes a top plate 601, the top of the motor 7 is provided with the top plate 601, the top of the top plate 601 is provided with the damper 602, the top end of the damper 602 is installed on the bottom of the chassis 1, the outer side of the damper 602 is movably sleeved with a first spring 603, two ends of the first spring 603 are respectively installed on the top of the top plate 601 and the bottom of the chassis 1, the rear side of the motor 7 is provided with a side plate 604, the top of the side plate 604 is provided with a telescopic rod 605, the top end of the telescopic rod 605 is installed on the bottom of the screen separating plate 5, the outer side of the telescopic rod 605 is movably sleeved with a second spring 606, and two ends of the second spring 606 are respectively installed on the top of the side plate 604 and the bottom of the screen separating plate 5.
In one embodiment of the present invention, four corners of the top of the side plate 604 are provided with a telescopic rod 605 and a second spring 606, and four corners of the top plate 601 are provided with a damper 602 and a first spring 603.
Specifically, the motor 7 is connected with the bottom of the case 1 and the bottom of the screening plate 5 by using the damper 602, the first spring 603, the telescopic rod 605 and the second spring 606 respectively, and vibration generated during operation of the motor 7 can drive the screening plate 5 to shake, so that corn grains and scraps on the screening plate 5 are separated conveniently, and the broken corn grains discharged from the screening plate 5 are reduced, so that the screening effect is achieved. Since the motor 7 is connected to the bottom of the cabinet 1 by the damper 602 and the first spring 603, vibration generated when the motor 7 operates does not drive the cabinet 1 to vibrate.
In one embodiment of the invention, the included angle between the whole of the screening plate 5 and the bottom of the inner cavity of the chassis 1 is thirty degrees, and the rear side of the screening plate 5 extends out of the chassis 1 from the discharge port 4.
Specifically, through dividing the contained angle between the whole of screen plate 5 and the bottom of quick-witted case 1 inner chamber to be thirty degrees, the row of being convenient for material.
In one embodiment of the present invention, the first rack 813 and the second rack 814 inside the square frame 812 can be respectively meshed with the external teeth of the first half gear 809 and the external teeth of the second half gear 810, the front side of the first half gear 809 being on the same horizontal plane as the rear side of the second rack 814, the rear side of the second half gear 810 and the front side of the first rack 813 being on the horizontal plane.
In particular, interference between the first half-gear 809 and the second half-gear 810 is avoided.
In one embodiment of the present invention, the first half-gear 809 and the second half-gear 810 are the same size, and the second half-gear 810 rotates thirty degrees clockwise relative to the first half-gear 809.
Specifically, by having the first half-gear 809 and the second half-gear 810 be the same size, the second half-gear 810 rotates thirty degrees clockwise relative to the first half-gear 809, creating a time differential such that the time after the first half-gear 809 and the first rack 813 contact the second half-gear 810 and the second rack 814 is less than the time between the distance after the second half-gear 810 and the second rack 814 contact the first half-gear 809 and the first rack 813 contact, providing sufficient time for corn to be delivered into the hopper 803.
In one embodiment of the present invention, the external teeth of the second half gear 810 do not contact the second rack 814 when the external teeth of the first half gear 809 contact the first rack 813.
Specifically, by the external teeth of the first half gear 809 being in contact with the first rack 813 and the external teeth of the second half gear 810 not being in contact with the second rack 814, the occurrence of seizing is avoided.
Working principle: when the device is used, a user pushes the case 1 to advance by utilizing the handle 13, and moves by utilizing the main moving wheel 15 at the bottom of the bracket 12 and the secondary moving wheel 14 at the bottom of the feed hopper 803, and the rotation of the secondary moving wheel 14 drives the cross rod 92 to rotate by utilizing the second belt transmission group 93, so that corn around the feed hopper 803 is conveniently conveyed into the feed hopper 803 by utilizing the rotation of the rotating plate 94;
starting the motor 7, driving the drum shaft 11 to rotate by using the third belt transmission group 10 to rotate the drum shaft 11, driving the first bevel gear 805 to rotate by rotating the drum shaft 11, driving the first connecting rod 807 to rotate by virtue of meshed connection between the first bevel gear 805 and the second bevel gear 808, pouring corn in the feeding hopper 3 into the machine case 1 by virtue of the fact that the first half gear 809 and the second half gear 810 are arranged on the first connecting rod 807 to rotate clockwise, driving the second rack 814 to move on the other side of the machine case 1 by virtue of the outer teeth of the first half gear 809 and the outer teeth of the first rack 813 when the second half gear 810 and the first half gear 809 rotate, driving the third rack 815 at the bottom of the square frame 812 to move by virtue of the first support plate 806, driving the rotating rod 801 to rotate by virtue of the limit plate 811, driving the supporting frame 802 to rotate upwards, pouring corn in the feeding hopper 3 into the machine case 1 by virtue of the drum on the drum shaft 11, and threshing corn 803 by virtue of the characteristic of the shape of the first half gear 809, stopping rotating obliquely upwards when the feeding hopper 3 rotates;
along with the rotation of the first connecting rod 807, the second half gear 810 contacts with the second rack 814 to drive the square frame 812 to move, so as to drive the second connecting rod 817 and the whole gear 818 to rotate reversely, so that the support frame 802 and the feed hopper 803 rotate downwards, the secondary moving wheel 14 at the bottom of the feed hopper 803 contacts with the ground, the first half gear 809 contacts with the first rack 813, the second half gear 810 contacts with the second rack 814, and then the first half gear 809 contacts with the first rack 813, and the second half gear 810 contacts with the second rack 814, so that the cycle is repeated, and the automatic feeding can be achieved only by pushing the machine by a user.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a corn thresher with divide sieve function, includes quick-witted case (1), a serial communication port, row's corncob mouth (2) has been seted up to one side of machine case (1), support (12) are installed to the bottom of machine case (1), feeding hopper (3) have been cup jointed to one side at machine case (1) top, bin outlet (4) have been seted up to the lower part of machine case (1) rear side, arc otter board (16) have been cup jointed in the middle part of machine case (1) inner chamber, be equipped with divide sieve otter board (5) in bin outlet (4), the opposite side of machine case (1) is equipped with feeding subassembly (8), the upper portion of machine case (1) rotates and cup joints drum shaft (11), coupling assembling (6) are utilized to be connected with motor (7) in the bottom of machine case (1), the output of motor (7) utilizes third belt drive group (10) to be connected with drum shaft (11) transmission, feeding subassembly (8) include dwang (801), the front and back side of machine case (1) has all rotated dwang (801), the dwang (803) have been cup jointed in the middle part of feed hopper (803), support frame 803) are installed to one side (803) one side of feed hopper (803) install, a first bevel gear (805) is arranged at one end of the roller shaft (11), a first supporting plate (806) positioned at the front side of the roller shaft (11) is arranged at the other side of the chassis (1), a first connecting rod (807) is rotatably sleeved at one side of the first supporting plate (806), a second bevel gear (808) meshed with the first bevel gear (805) is arranged at the rear end of the first connecting rod (807), a first half gear (809) is arranged at the front end of the first connecting rod (807), a second half gear (810) is arranged at the front side of the first half gear (809), a limiting plate (811) positioned right in front of the first supporting plate (806) is sleeved at the front side of the chassis (1), a square frame (812) positioned at the outer side of the first half gear (809) and the second half gear (810) is arranged at one side of the limiting plate (811), a first rack (813) is arranged at the rear side of the top of an inner cavity of the square frame (812), a second half gear (809) is arranged at the front side of the bottom of the inner cavity of the square frame (812), a second half gear (809) is arranged at the bottom of the inner cavity, a second rack (816) is arranged at the front side of the inner cavity, a second rack (816) is arranged at the bottom of the second side of the square frame (812), a limiting plate (816) is arranged at the other side of the second side of the chassis (816) and is positioned at the right side of the chassis (816), the rear side of the second connecting rod (817) is sleeved with a whole gear (818) meshed with the third rack (815), the front side of the second connecting rod (817) is in transmission connection with one rotating rod (801) by using a first belt transmission group (819), and a shell (820) positioned outside the square frame (812) and the first belt transmission group (819) is arranged on the other side of the chassis (1);
the connecting assembly (6) comprises a top plate (601), the top plate (601) is arranged at the top of the motor (7), the top of the top plate (601) is provided with a damper (602), the top end of the damper (602) is arranged at the bottom of the case (1), a first spring (603) is movably sleeved on the outer side of the damper (602), two ends of the first spring (603) are respectively arranged at the top of the top plate (601) and the bottom of the case (1), a side plate (604) is arranged at the rear side of the motor (7), the top of the side plate (604) is provided with a telescopic rod (605), the top end of the telescopic rod (605) is arranged at the bottom of the screen separating plate (5), a second spring (606) is movably sleeved on the outer side of the telescopic rod (605), and two ends of the second spring (606) are respectively arranged at the top of the side plate (604) and the bottom of the screen separating plate (5);
the first rack (813) and the second rack (814) inside the square frame (812) can be respectively meshed with external teeth of the first half gear (809) and external teeth of the second half gear (810), the front side of the first half gear (809) and the rear side of the second rack (814) are on the same vertical plane, and the rear side of the second half gear (810) and the front side of the first rack (813) are on the same vertical plane;
the first half-gear (809) and the second half-gear (810) are the same size, the second half-gear (810) being rotated thirty degrees clockwise relative to the first half-gear (809).
2. The corn thresher with screening function according to claim 1, wherein the feeding assembly (9) is arranged on the feeding hopper (803), the feeding assembly (9) comprises support plates (91) which are respectively arranged on the front side and the rear side of the feeding hopper (803) away from the side face of the support frame (802), a cross rod (92) is rotatably connected to one side of the support plates (91), a rotating plate (94) is arranged on the outer side of the cross rod (92), a secondary moving wheel (14) is arranged at the bottom of the feeding hopper (803), a rotating shaft on the secondary moving wheel (14) is in transmission connection with the front side of the cross rod (92) through a second belt transmission group (93), the four corners of the bottom of the support frame (12) are respectively provided with a main moving wheel (15), and handles (13) which are arranged on the front side and the rear side below the corn cob discharging opening (2) are respectively arranged on one side of the machine case (1).
3. The corn thresher with the screening function as claimed in claim 2, wherein the bottom of the inclined plate (804) is parallel to the bottom of the inclined plate (804) when the bottom of the inclined plate (804) contacts the ground.
4. The corn thresher with screening function according to claim 1, wherein four corners at the top of the side plate (604) are respectively provided with a telescopic rod (605) and a second spring (606), and four corners at the top of the top plate (601) are respectively provided with a damper (602) and a first spring (603).
5. The corn thresher with the screening function according to claim 1, wherein an included angle between the whole screening screen (5) and the bottom of the inner cavity of the machine case (1) is thirty degrees, and the rear side of the screening screen (5) extends out of the machine case (1) from the discharge hole (4).
6. The corn thresher with a sifting function of claim 1, wherein the external teeth of the first half gear (809) are not in contact with the second rack (814) when the external teeth of the second half gear (810) are in contact with the first rack (813).
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| CN202310599043.5A CN116349504B (en) | 2023-05-25 | 2023-05-25 | Corn thresher with screening function |
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| CN202310599043.5A CN116349504B (en) | 2023-05-25 | 2023-05-25 | Corn thresher with screening function |
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| CN116349504B true CN116349504B (en) | 2023-08-15 |
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|---|---|
| CN116349504A (en) | 2023-06-30 |
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