CN111990065A - High-efficient grain threshing device - Google Patents

High-efficient grain threshing device Download PDF

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Publication number
CN111990065A
CN111990065A CN202010919411.6A CN202010919411A CN111990065A CN 111990065 A CN111990065 A CN 111990065A CN 202010919411 A CN202010919411 A CN 202010919411A CN 111990065 A CN111990065 A CN 111990065A
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CN
China
Prior art keywords
grain
bran
rod
crushing
straw
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CN202010919411.6A
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Chinese (zh)
Inventor
朱赵伟
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Individual
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Individual
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Priority to CN202010919411.6A priority Critical patent/CN111990065A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01FPROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F7/00Threshing apparatus
    • A01F7/02Threshing apparatus with rotating tools
    • A01F7/04Threshing apparatus with rotating tools with axles transverse to the feeding direction
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01FPROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F12/00Parts or details of threshing apparatus
    • A01F12/18Threshing devices
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01FPROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F12/00Parts or details of threshing apparatus
    • A01F12/40Arrangements of straw crushers or cutters
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01FPROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F12/00Parts or details of threshing apparatus
    • A01F12/44Grain cleaners; Grain separators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02BPREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
    • B02B5/00Grain treatment not otherwise provided for
    • B02B5/02Combined processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02BPREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
    • B02B7/00Auxiliary devices

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Adjustment And Processing Of Grains (AREA)

Abstract

The invention relates to a high-efficiency grain threshing device which comprises a stalk removing and crushing component, a grain grinding component, a straw stirring component, a grain grinding component, a bran removing component and an air outlet component. Through carrying out concrete setting to each part, can realize that cereal can put into the device and handle before not getting rid of the straw, beat cereal from the straw through the breakage, and break the straw, through the operation of grinding the millet, the separation of cereal and bran has been realized, also can be with partial bran breakage simultaneously, through grinding the millet part, realized realizing that partial cereal with the bran realizes further getting rid of the bran, also with the further fragmentation of bran simultaneously, blow cereal and bran to side bran sieve and collide with it through high-pressure blast air, the fragmented bran passes through the sieve and detach, and cereal has not only strengthened the effect of getting rid of the bran when being blown, also realize certain stoving effect simultaneously, thereby the effect of high-efficient high-quality threshing has been realized.

Description

High-efficient grain threshing device
Technical Field
The invention relates to the field of intelligent agriculture, in particular to a high-efficiency grain threshing device.
Background
The intelligent agricultural machinery has more researches in recent years, the integrated harvester of the grain has the most deep research, the threshing device of the grain has relatively few researches because the threshing technology is relatively formed, the threshing technology is mainly realized by grinding the grain with the husk to remove the bran, the threshing device of the grain needs to firstly remove the straw of the grain and then thresh, the separation of the straw and the grain is mainly carried out manually at present, the straw is generally discarded after being removed, but the straw contains rich cellulose and can be used as a raw material in many fields, if the straw for removing the grain is recycled, the related crushing treatment needs to be carried out, so that certain cost is needed for the treatment of the straw, and certain obstruction is brought to the recycling of the straw. Meanwhile, the pure milling can not only lead the removal effect of the bran of the grains not to be very high, but also lead the grains to be damaged by the high-intensity milling, thereby improving the defective rate. At present, the grain and bran are removed mainly by adopting air injection and the separation is realized by different dropping positions according to different densities of the grain and the bran, but the mode needs a relatively large field and has a little defect in separation rate.
Disclosure of Invention
Aiming at the technical problems, the invention provides an efficient grain threshing device which can directly thresh grains with straws, crush and recover the straws and crush and recover bran.
The method is realized by the following technical means:
a high-efficiency grain threshing device comprises a stalk removing and crushing component, a grain grinding component, a straw stirring component, a grain grinding component, a bran removing component and an air outlet component.
The rod-removing crushing component comprises a crushing cavity shell, a grain feeding port, a first rod-removing crushing shaft component, a rod-removing top crushing cutter, a second rod-removing crushing shaft component, a third rod-removing crushing shaft component, a crushing driving motor, a speed reducer and a crushing cavity shell discharging port; the straw removing and crushing part is used for primarily separating straws of grains from the grains and primarily crushing the straws, the grain feeding port is formed in the top wall of the crushing cavity shell, and a first straw removing and crushing shaft part, a second straw removing and crushing shaft part and a third straw removing and crushing shaft part are transversely arranged in the crushing cavity shell; the first rod-removing crushing shaft component comprises a first rod-removing crushing shaft and a first rod-removing crushing cutter, the first rod-removing crushing shaft is of a cross shaft structure, a plurality of rows of rods are arranged on the outer surface of the first rod-removing crushing shaft, the second rod-removing crushing shaft component comprises a second rod-removing crushing shaft and a second rod-removing crushing cutter, the third rod-removing crushing shaft component comprises a third rod-removing crushing shaft and a third rod-removing crushing cutter, the arrangement mode of the second rod-removing crushing shaft component and the third rod-removing crushing shaft component is the same as that of the first rod-removing crushing shaft component, a plurality of rows of rod-removing top crushing cutters are distributed on the inner top wall of the crushing cavity shell, each row of rod-removing top crushing cutters and each row of the first rod-removing crushing cutters, the second rod-removing crushing cutters and the third rod-removing crushing cutters are arranged at intervals, and the crushing driving motor passes through the speed reducer and the first rod-removing crushing shaft, the speed reducer, The second rod-removing crushing shaft is connected with the third rod-removing crushing shaft and drives the rotation of the second rod-removing crushing shaft, and the lowest end of one side wall of the crushing cavity shell is provided with the crushing cavity shell discharge port.
Grind valley portion spare and include conveyer belt, transfer roller, roll roller part, spring bar holding chamber and millet pole screening board, broken chamber shell discharge gate sets up the top at the top of conveyer belt, a plurality of being used for driving the conveyer belt and removing the transfer roller sets up in the conveyer belt, is provided with at the terminal of conveyer belt millet pole screening board is provided with a plurality ofly above the conveyer belt roll roller part, every roll roller part is including rolling roller, roll roller, spring housing and spring, roll roller is horizontal roll roller structure, is provided with at the both ends of roll roller the roll roller, roll the roller and be connected with the bottom of spring through the inside spring bar of spring, the inside spring bar of spring can upwards go deep into spring bar holding intracavity, is provided with spring housing outside the spring.
The straw stirring part comprises a straw stirring cavity shell, a straw stirring cavity feeding port, a straw stirring shaft, a straw stirring blade, a straw stirring motor, a straw stirring cavity discharging port, a straw stirring cavity grain discharging sieve plate and a straw storage box; the straw stirring cavity feeding port is arranged at the top end of the side wall of the straw stirring cavity shell and is communicated with the terminal of the grain pole screening plate, the straw stirring shaft is vertically arranged in the straw stirring cavity shell, a plurality of rows of straw stirring blades are arranged on the outer surface of the straw stirring shaft, and the straw stirring motor is connected with the straw stirring shaft and drives the straw stirring shaft to rotate; be provided with on the diapire of straw stirring chamber shell straw stirring chamber goes out millet sieve has seted up the straw stirring chamber bin outlet at the lateral wall least significant end of straw stirring chamber shell, the straw storage case with straw stirring chamber bin outlet intercommunication for the straw material of keeping in.
The grain grinding part comprises a grain grinding chamber shell, a grain grinding chamber feeding port, a grain grinding rotating cone, a grain grinding wall, a grain grinding chamber discharging port and a rotating cone driving motor; the grain grinding chamber is characterized in that a grain grinding chamber feeding port is arranged on the top wall of a grain grinding chamber shell, the grain grinding chamber feeding port is arranged right below a grain rod screening plate and used for receiving undersize of the grain rod screening plate, a grain grinding chamber discharging port is arranged on the bottom wall of the grain grinding chamber shell, a grain grinding rotating cone is vertically arranged at the inner bottom of the grain grinding chamber shell, the grain grinding rotating cone is of a cone structure, a roughened hard alloy layer is distributed on the outer surface of the grain grinding rotating cone, a rotating cone driving motor is connected with the grain grinding rotating cone and drives the grain grinding rotating cone to rotate, the grain grinding wall is annularly arranged around the grain grinding rotating cone, the outer edge of the top of the grain grinding wall is connected with the outer edge of the grain grinding chamber feeding port, the outer edge of the bottom of the grain grinding wall extends towards the grain grinding rotating shaft direction in a downward arc shape, the outer edge of the bottom of the grain grinding wall is connected with the outer edge of the grain grinding chamber discharging port, and the inner surface of the grain grinding alloy layer is roughened.
The bran removing component comprises a bran separating cavity shell, a bran removing cavity inlet, a high-pressure air nozzle, an air spraying cavity, an air inlet pipe, an air inlet fan, a side bran sieve plate, a bottom bran sieve plate, a bran removing cavity discharge port, an air exhaust sieve plate, an air outlet and a grain bin; the inlet of the bran removing cavity is arranged on the top wall of the bran removing cavity and is communicated with the discharge hole of the bran grinding chamber, a plurality of high-pressure air nozzles are densely arranged on one side wall of the bran removing cavity, the air spraying cavity is arranged outside the side wall of the bran removing cavity and is connected with each high-pressure air nozzle, high-pressure air is supplied to the high-pressure air nozzles, a plurality of air inlet pipes are communicated with the outer wall of the air spraying cavity, an air inlet fan for pressurizing is arranged on each air inlet pipe, a side bran sieve plate is vertically arranged on the side wall of the bran removing cavity opposite to the high-pressure air nozzles, the bottom wall of the bran removing cavity is a bottom bran plate, the bottom bran sieve plate is obliquely arranged, the oblique direction is the higher end close to one side of the side bran sieve plate, the lower end of the bran plate is connected with the side wall of the bran removing cavity, the grain bin is communicated with the discharge hole of the bran removing cavity, and the bran separating cavity is arranged outside the bran removing cavity, and a cavity is formed outside the side bran sieve plate and the bottom bran sieve plate, an air outlet is formed on the top wall of the bran separation cavity shell, and an air exhaust sieve plate is obliquely arranged between the air outlet and the side bran sieve plate.
The air-out part includes exhaust pipe, water spray chamber, water spout and miscellaneous mud enrichment groove, the entry end of exhaust pipe and the air outlet intercommunication of removing the bran part, the exit end and the outside atmosphere intercommunication of exhaust pipe are provided with one or more water spout on the interior roof of exhaust pipe, the water spray chamber sets up and carries out the water supply at the top of water spout and to the water spout, and undercut forms on the diapire of the exhaust pipe of the below in water spray chamber miscellaneous mud enrichment groove.
Preferably, each row of the first rod removing crushing cutter, the second rod removing crushing cutter and the third rod removing crushing cutter is provided with 8-10 rods.
Preferably, the straw sieving plate is arranged obliquely, and the starting end of the straw sieving plate is higher than the terminal end of the straw sieving plate.
Preferably, the grain rod screening plate and the grain outlet screening plate of the straw stirring cavity have the mesh aperture larger than the average diameter of grains and smaller than the length of the straws, for example, the mesh aperture can be 10-20 mm.
Preferably, the outer surface of the rolling roller is a roughened hard alloy layer.
Preferably, the straw stirring motor is connected with the straw stirring shaft through a speed reducer.
Preferably, the outlet of the grinding chamber is an annular opening.
Preferably, the sieve pore diameter of the side bran sieve plate and the bottom bran sieve plate is smaller than the grain diameter of grains and larger than the diameter of the crushed bran, for example, the sieve pore diameter can be 2-8 mm.
Preferably, the mesh opening of the exhaust sieve plate is smaller than the diameter of the bran material.
Through the implementation of the technical scheme, the invention can obtain the following technical effects:
through setting up the broken part of pole that goes of specific structure, through the broken sword of intercrossing motion, not only can cut up the straw, the shake straw that collision many times can high strength simultaneously to can shake off grain from the straw, thereby realize the separation of partly grain and straw.
Through the millet part of grinding that sets up specific structure, can be with the corn with the straw separation through grinding and bran separation, also can separate corn and straw through grinding, owing to be provided with a plurality of roller parts that roll, can realize that preceding one or several roller parts that roll separate corn and straw, back one or several roller parts that roll can carry out the desorption of bran to the corn of separation, simultaneously because the roller that rolls realizes decurrent pressure through the spring, thereby can not bring great pressure for corn, thereby also can not cause great bad material rate. The grain is further extruded through the grain grinding part and is impacted with the side bran sieve plate after the high-pressure air nozzle blows the grain, so that residual bran partially coated on the grain is further removed from the grain, and the bran is removed from the grain step by step, so that the bran is softened and fully removed from the grain, certain crushing of the bran is realized, the size of the bran is reduced, and convenience is brought to the separation of a relatively small space of the grain and the bran.
Through setting up straw stirring chamber, through straw (mixing) shaft and straw stirring vane, the further vibration of straw after the breakage to can also can go out the millet sieve through straw stirring chamber with remaining corn in the straw and carry out recovery processing, avoid a large amount of corn to mix in the straw and extravagant, improved the yield of corn greatly.
Through setting up the grinding part of specific structure, can realize that the space of enrichment cereal removes from big to little to because grind the mutual motion of millet awl and grinding the millet wall, can gently rub cereal, thereby can get rid of the bran that the part was not got rid of realization, thereby improved the clearance of bran and reduced the bad material rate of cereal.
Through setting up the bran part that removes of specific structure, spout cereal grain and bran through a plurality of high pressure blast nozzles, the bran has reduced owing to the size after having smashed to can sieve the two through side bran sieve and end bran sieve. Through setting up specific air-out part, can the water conservancy diversion wind direction to get rid of after can realizing the humidifying with the particulate matter that mix with in the air current through the water spout, also avoided the secondary pollution to the air.
Drawings
Fig. 1 is a schematic interior view of the high-efficiency grain threshing device of the present invention.
Fig. 2 is a schematic structure view of fig. 1 viewed from a-a inward.
Wherein: 100-crushing chamber shell, 101-grain inlet, 102-first destoner crushing shaft, 103-destoner top crushing knife, 104-first destoner crushing knife, 105-second destoner crushing shaft, 106-third destoner crushing shaft, 107-crushing driving motor, 108-speed reducer, 109-crushing chamber shell outlet, 201-conveyor belt, 202-conveyor roller, 203-rolling roller, 204-spring housing, 205-spring, 206-spring rod containing cavity, 207-rolling roller shaft, 208-grain rod screening plate, 300-straw stirring chamber shell, 301-straw stirring chamber inlet, 302-straw stirring shaft, 303-straw stirring blade, 304-straw stirring motor, 305-straw stirring chamber outlet, 306-straw stirring chamber outlet, 400-straw storage box, 501-feeding inlet of grain grinding chamber, 502-grinding cone, 503-grinding wall, 504-discharging outlet of grain grinding chamber, 505-driving motor of cone, 600-bran separating chamber shell, 601-high pressure air nozzle, 602-air spraying chamber, 603-air inlet pipe, 604-air inlet fan, 605-side bran sieve plate, 606-bottom bran sieve plate, 607-discharging outlet of bran removing chamber, 608-air exhaust sieve plate, 609-air outlet, 700-grain bin, 800-exhaust pipe, 801-water spraying chamber, 802-water spraying nozzle and 803-impurity mud enriching tank.
Detailed Description
Further description is made with reference to the accompanying drawings: fig. 1 and 2 show the high-efficiency grain threshing device of the embodiment, which comprises a stalk-removing and crushing component, a grain-grinding component, a straw stirring component, a grain-grinding component, a bran-removing component and an air-out component.
As shown in fig. 1 and 2, the stalk removing and crushing component comprises a crushing cavity shell 100, a grain feeding port 101, a first stalk removing and crushing shaft component, a stalk removing top crushing knife 103, a second stalk removing and crushing shaft component, a third stalk removing and crushing shaft component, a crushing driving motor 107, a speed reducer 108 and a crushing cavity shell discharging port 109. The straw removing and crushing part is used for primarily separating straws of grains from the grains and primarily crushing the straws, the grain feeding port is formed in the top wall of the crushing cavity shell, and as shown in fig. 2, a first straw removing and crushing shaft part, a second straw removing and crushing shaft part and a third straw removing and crushing shaft part are transversely arranged in the crushing cavity shell; the first rod-removing crushing shaft part comprises a first rod-removing crushing shaft 102 and first rod-removing crushing knives 104, the first rod-removing crushing shaft is of a cross shaft structure, a plurality of rows of the first rod-removing crushing knives are arranged on the outer surface of the first rod-removing crushing shaft, the second rod-removing crushing shaft part comprises a second rod-removing crushing shaft and second rod-removing crushing knives, the third rod-removing crushing shaft part comprises a third rod-removing crushing shaft and third rod-removing crushing knives, as shown in fig. 2, the arrangement mode of the second rod-removing crushing shaft part and the third rod-removing crushing shaft part is the same as that of the first rod-removing crushing shaft part, a plurality of rows of rod-removing top crushing knives are distributed on the inner top wall of the crushing cavity shell, as shown in fig. 1, each row of the rod-removing top crushing knives is spaced from each row of the first rod-removing crushing knives, the second rod-removing crushing knives and the third rod-removing crushing knives, and each row of the first rod-removing crushing knives is spaced from each row of the second rod-removing crushing knives, every row of third goes the broken sword of pole and every row of second to go also be looks spaced (looks spaced between every adjacent row for form relative displacement between the broken sword, thereby realize the breakage), broken driving motor passes through the speed reducer is gone broken axle with first pole, the broken axle of second and the broken axle of third to link to each other with the broken axle of first pole, the broken axle of second pole and the broken axle of third pole respectively, and drives its rotation, has seted up at the least significant end of broken chamber shell lateral wall broken chamber shell discharge gate.
As shown in fig. 1, the valley rolling members include a conveyor belt 201, a conveyor roll 202, a roller assembly, a spring rod housing cavity 206, and a valley screening plate 208. The crushing cavity shell discharge port is arranged above the initial end (namely, the left end in fig. 1) of the conveyor belt, a plurality of conveying rollers for driving the conveyor belt to move are arranged in the conveyor belt (5 conveying rollers are arranged in the embodiment shown in fig. 1) at the terminal end (namely, the right end in fig. 1) of the conveyor belt, a plurality of crushing roller components (5 grinding roller components are arranged in the embodiment shown in fig. 1) are arranged above the conveyor belt, each crushing roller component comprises a crushing roller 203, a crushing roller shaft 207, a spring shell 204 and a spring 205 (as shown in fig. 1, a spring rod can be arranged in the spring, the upper part and the lower part of the spring are generally provided with limiting plates for limiting the displacement of the spring, the spring rod is connected with the lower limiting plate, namely, the lower limiting plate can move up and down, and the upper limiting plate is fixed on the spring shell, so as to limit the upward, realized the compression of spring, this is conventional spring part's mode of setting), the roller structure is rolled for horizontal rolling to the rolling roller, is provided with at the both ends of rolling the roller the rolling roller axle, the rolling roller axle is connected with the bottom of spring through the inside spring rod of spring, and the inside spring rod of spring can upwards be gone deep into the spring rod holding intracavity, is provided with the spring housing outside the spring (every rolling roller of this embodiment all is equipped with two springs and spring housing, sets up at the both ends of rolling the roller).
As shown in fig. 1, the straw sifting plate is disposed obliquely and with its beginning higher than its end (i.e., higher left and lower right in fig. 1).
In order to strengthen the rolling effect, the outer surface of the rolling roller is a roughened hard alloy layer.
As shown in fig. 1, the straw stirring component includes a straw stirring cavity shell 300, a straw stirring cavity feed inlet 301, a straw stirring shaft 302, a straw stirring blade 303, a straw stirring motor 304, a straw stirring cavity discharge outlet 305, a straw stirring cavity grain outlet sieve plate 306 and a straw storage box 400. The straw stirring cavity feeding port is arranged at the top end of the left side wall of the straw stirring cavity shell and is communicated with the terminal of the grain pole screening plate (namely the bottom end is connected with the terminal of the grain pole screening plate, and the opening is arranged at the upper part), the straw stirring shaft is vertically arranged in the straw stirring cavity shell, a plurality of rows of straw stirring blades (5 rows and 3 rows in the embodiment shown in figure 1) are arranged on the outer surface of the straw stirring shaft, and the straw stirring motor is connected with the straw stirring shaft and drives the straw stirring shaft to rotate; be provided with on the diapire of straw stirring chamber shell straw stirring chamber goes out millet sieve has seted up the straw stirring chamber bin outlet at the right side wall least significant end of straw stirring chamber shell, the straw storage case with straw stirring chamber bin outlet intercommunication for the straw material of keeping in.
The sieve pore diameters of the grain rod sieving plate and the grain outlet sieve plate of the straw stirring cavity are both larger than the average diameter of grains and smaller than the length of straws, for example, the sieve pore diameter can be 15mm (determined according to the types of grains to be treated).
Generally, a speed reducer is arranged for controlling the rotation speed of the stirring shaft, and the straw stirring motor can be connected with the straw stirring shaft through the speed reducer in the embodiment.
As shown in fig. 1, the grinding section includes a grinding chamber shell, a grinding chamber inlet 501, a grinding bowl rotating cone 502, a grinding bowl wall 503, a grinding chamber outlet 504, and a rotating cone drive motor 505. The grain grinding chamber is characterized in that a grain grinding chamber feeding port is arranged on the top wall of a grain grinding chamber shell, the grain grinding chamber feeding port is arranged right below a grain stem screening plate and used for receiving undersize of the grain stem screening plate, a grain grinding chamber discharging port is arranged on the bottom wall of the grain grinding chamber shell, a grain grinding rotating cone is vertically arranged at the inner bottom of the grain grinding chamber shell, the grain grinding rotating cone is of a cone structure, a roughened hard alloy layer is distributed on the outer surface of the grain grinding rotating cone, a rotating cone driving motor is connected with the grain grinding rotating cone and drives the grain grinding rotating cone to rotate, as shown in figure 1, the grain grinding wall is annularly arranged around the grain grinding rotating cone, the outer edge of the top of the grain grinding wall is connected with the outer edge of the grain grinding chamber feeding port, the grain grinding wall extends downwards in an arc shape towards the direction of the grain grinding rotating shaft, the outer edge of the bottom of the grain grinding wall is connected with the outer edge of the grain grinding chamber discharging port, and the inner surface of the grain grinding wall is roughened hard alloy layer (as shown in figure 1, the distance between the grain grinding wall and the grain grinding rotating cone is large and then the back cone, first larger and then smaller in other embodiments).
As shown in fig. 1, the outlet of the grinding chamber is an annular opening, i.e. the bottom outer edge of the grinding cone is opened.
As shown in fig. 1, the bran removing component comprises a bran separating chamber shell 600, a bran removing chamber (a chamber surrounded by a side bran sieve plate, a bottom bran sieve plate, a high-pressure air nozzle and a bran removing chamber inlet in fig. 1), a bran removing chamber inlet, a high-pressure air nozzle 601, an air spraying chamber 602, an air inlet pipe 603, an air inlet fan 604, a side bran sieve plate 605, a bottom bran sieve plate 606, a bran removing chamber outlet 607, an air exhaust sieve plate 608, an air outlet 609 and a grain bin 700. The inlet of the bran removing cavity is arranged on the top wall of the bran removing cavity (namely the position which is coincident with the discharge hole of the bran grinding chamber in figure 1) and is communicated with the discharge hole of the bran grinding chamber, a plurality of high-pressure air nozzles (9 rows in the embodiment and 9 rows in each row in the embodiment) are densely arranged on one side wall of the bran removing cavity, the air spraying cavity is arranged outside the side wall of the bran removing cavity and is connected with each high-pressure air nozzle, high-pressure air is supplied to the high-pressure air nozzles, a plurality of air inlet pipes (3 in the embodiment) are communicated on the outer wall of the air spraying cavity, an air inlet fan for pressurizing is arranged on each air inlet pipe, a side bran sieve plate is vertically arranged on the side wall of the bran removing cavity opposite to the high-pressure air nozzles, the bottom wall of the bran removing cavity is a bottom bran sieve plate, the bran of the bottom sieve plate is obliquely arranged, and one side close to the side bran sieve plate is a higher end (as the left side is, the lower end of the bran-removing sieve plate is connected with the side wall of the bran-removing cavity, a bran-removing cavity discharge hole is formed, the grain bin is communicated with the bran-removing cavity discharge hole, the bran-separating cavity shell is arranged outside the bran-removing cavity in a wrapping mode, a cavity is formed outside the bran-removing sieve plate and the bran-removing sieve plate, an air outlet is formed in the top wall of the bran-separating cavity shell, and an air exhaust sieve plate is obliquely arranged between the air outlet and the bran-removing sieve plate (as shown in fig. 1, the lower end of the air exhaust sieve plate is connected with the lowest end of the left side wall of the bran-separating cavity shell, and the lower end of the air exhaust.
In order to allow the grain not to pass through but the ground bran to pass through, the sieve openings of the side bran sieve plate and the bottom bran sieve plate are smaller than the grain diameter and larger than the diameter of the ground bran, for example, the sieve opening diameter can be 5 mm. In order to prevent the broken bran from passing through and allow the air flow to pass through, the mesh opening of the air exhaust sieve plate is smaller than the diameter of the broken bran, for example 1 mm.
As shown in fig. 1, the air outlet part includes an exhaust pipe 800, a water spraying cavity 801, a water spraying nozzle 802 and a mud enrichment tank 803. The entry end of exhaust pipe and the air outlet intercommunication of removing the bran part, the exit end and the outside atmosphere intercommunication of exhaust pipe are provided with a plurality of water jets (this embodiment is provided with 2 as shown in figure 1) on the interior roof of exhaust pipe, the water spray chamber sets up at the top of water jet and carries out the water supply to the water jet, and the undercut forms on the diapire of the exhaust pipe of the below in water spray chamber miscellaneous mud enrichment groove. As shown in fig. 1, the trash-sludge concentrating tank of this embodiment is in a form of large top, medium bottom and small bottom, so that the trash sludge will not return to the exhaust pipe after falling into the tank.

Claims (10)

1. A high-efficiency grain threshing device is characterized by comprising a stalk removing and crushing component, a grain grinding component, a straw stirring component, a grain grinding component, a bran removing component and an air outlet component;
the rod-removing crushing component comprises a crushing cavity shell, a grain feeding port, a first rod-removing crushing shaft component, a rod-removing top crushing cutter, a second rod-removing crushing shaft component, a third rod-removing crushing shaft component, a crushing driving motor, a speed reducer and a crushing cavity shell discharging port; the straw removing and crushing part is used for primarily separating straws of grains from the grains and primarily crushing the straws, the grain feeding port is formed in the top wall of the crushing cavity shell, and a first straw removing and crushing shaft part, a second straw removing and crushing shaft part and a third straw removing and crushing shaft part are transversely arranged in the crushing cavity shell; the first rod-removing crushing shaft component comprises a first rod-removing crushing shaft and a first rod-removing crushing cutter, the first rod-removing crushing shaft is of a cross shaft structure, a plurality of rows of rods are arranged on the outer surface of the first rod-removing crushing shaft, the second rod-removing crushing shaft component comprises a second rod-removing crushing shaft and a second rod-removing crushing cutter, the third rod-removing crushing shaft component comprises a third rod-removing crushing shaft and a third rod-removing crushing cutter, the arrangement mode of the second rod-removing crushing shaft component and the third rod-removing crushing shaft component is the same as that of the first rod-removing crushing shaft component, a plurality of rows of rod-removing top crushing cutters are distributed on the inner top wall of the crushing cavity shell, each row of rod-removing top crushing cutters and each row of the first rod-removing crushing cutters, the second rod-removing crushing cutters and the third rod-removing crushing cutters are arranged at intervals, and the crushing driving motor passes through the speed reducer and the first rod-removing crushing shaft, the speed reducer, The second rod-removing crushing shaft is connected with the third rod-removing crushing shaft, the second rod-removing crushing shaft drives the third rod-removing crushing shaft to rotate, and the lowest end of one side wall of the crushing cavity shell is provided with a crushing cavity shell discharge hole;
the valley grinding part comprises a conveyor belt, a conveyor roller, grinding roller parts, a spring rod accommodating cavity and a valley rod screening plate, a discharge port of a crushing cavity shell is arranged above the starting end of the conveyor belt, the conveyor roller for driving the conveyor belt to move is arranged in the conveyor belt, the valley rod screening plate is arranged at the terminal of the conveyor belt, the grinding roller parts are arranged above the conveyor belt, each grinding roller part comprises a grinding roller, a grinding roller shaft, a spring shell and a spring, the grinding roller is of a transverse grinding roller structure, the grinding roller shafts are arranged at two end parts of the grinding roller and connected with the bottom of the spring through spring rods inside the spring, the spring rods inside the spring can upwards penetrate into the spring rod accommodating cavity, and the spring shell is arranged outside the spring;
the straw stirring part comprises a straw stirring cavity shell, a straw stirring cavity feeding port, a straw stirring shaft, a straw stirring blade, a straw stirring motor, a straw stirring cavity discharging port, a straw stirring cavity grain discharging sieve plate and a straw storage box; the straw stirring cavity feeding port is arranged at the top end of the side wall of the straw stirring cavity shell and is communicated with the terminal of the grain pole screening plate, the straw stirring shaft is vertically arranged in the straw stirring cavity shell, a plurality of rows of straw stirring blades are arranged on the outer surface of the straw stirring shaft, and the straw stirring motor is connected with the straw stirring shaft and drives the straw stirring shaft to rotate; the bottom wall of the straw stirring cavity shell is provided with the straw stirring cavity grain outlet sieve plate, the lowest end of the side wall of the straw stirring cavity shell is provided with a straw stirring cavity discharge port, and the straw storage box is communicated with the straw stirring cavity discharge port and used for temporarily storing straw materials;
the grain grinding part comprises a grain grinding chamber shell, a grain grinding chamber feeding port, a grain grinding rotating cone, a grain grinding wall, a grain grinding chamber discharging port and a rotating cone driving motor; the grain grinding chamber is characterized in that a grain grinding chamber feeding port is arranged on the top wall of a grain grinding chamber shell, the grain grinding chamber feeding port is arranged right below a grain rod screening plate and used for receiving undersize of the grain rod screening plate, a grain grinding chamber discharging port is arranged on the bottom wall of the grain grinding chamber shell, a grain grinding rotating cone is vertically arranged at the inner bottom of the grain grinding chamber shell, the grain grinding rotating cone is of a cone structure, a roughened hard alloy layer is distributed on the outer surface of the grain grinding rotating cone, a rotating cone driving motor is connected with the grain grinding rotating cone and drives the grain grinding rotating cone to rotate, the grain grinding wall is annularly arranged around the grain grinding rotating cone, the outer edge of the top of the grain grinding wall is connected with the outer edge of the grain grinding chamber feeding port, the outer edge of the bottom of the grain grinding wall extends towards the grain grinding rotating shaft direction in a downward arc shape, the outer edge of the bottom of the grain grinding wall is connected with the outer edge of the grain grinding chamber discharging port, and the inner surface of the grain grinding alloy layer is roughened;
the bran removing component comprises a bran separating cavity shell, a bran removing cavity inlet, a high-pressure air nozzle, an air spraying cavity, an air inlet pipe, an air inlet fan, a side bran sieve plate, a bottom bran sieve plate, a bran removing cavity discharge port, an air exhaust sieve plate, an air outlet and a grain bin; the inlet of the bran removing cavity is arranged on the top wall of the bran removing cavity and is communicated with the discharge hole of the bran grinding chamber, a plurality of high-pressure air nozzles are densely arranged on one side wall of the bran removing cavity, the air spraying cavity is arranged outside the side wall of the bran removing cavity and is connected with each high-pressure air nozzle, high-pressure air is supplied to the high-pressure air nozzles, a plurality of air inlet pipes are communicated with the outer wall of the air spraying cavity, an air inlet fan for pressurizing is arranged on each air inlet pipe, a side bran sieve plate is vertically arranged on the side wall of the bran removing cavity opposite to the high-pressure air nozzles, the bottom wall of the bran removing cavity is a bottom bran plate, the bottom bran sieve plate is obliquely arranged, the oblique direction is the higher end close to one side of the side bran sieve plate, the lower end of the bran plate is connected with the side wall of the bran removing cavity, the grain bin is communicated with the discharge hole of the bran removing cavity, and the bran separating cavity is arranged outside the bran removing cavity, and a cavity is formed outside the side bran sieve plate and the bottom bran sieve plate, an air outlet is formed on the top wall of the bran separation cavity shell, and an air exhaust sieve plate is obliquely arranged between the air outlet and the side bran sieve plate.
2. The efficient grain threshing device according to claim 1, wherein the air outlet member comprises an exhaust pipe, a water spraying chamber, water nozzles and a trash concentration tank, the inlet end of the exhaust pipe is communicated with the air outlet of the bran removing member, the outlet end of the exhaust pipe is communicated with the external atmosphere, one or more water nozzles are arranged on the inner top wall of the exhaust pipe, the water spraying chamber is arranged on the top of the water nozzles and supplies water to the water nozzles, and the trash concentration tank is formed by sinking the bottom wall of the exhaust pipe below the water spraying chamber.
3. The efficient grain threshing apparatus of claim 1 wherein 8-10 first, second and third threshing knives are provided per row.
4. The high efficiency grain threshing apparatus of claim 1, wherein the grain straw sifting plate is disposed at an angle with its beginning higher than its end.
5. The efficient grain threshing device of claim 1, wherein the grain sieve plate and the grain outlet sieve plate of the straw stirring cavity have sieve pore diameters larger than the average diameter of grains and smaller than the length of the straws (for example, the sieve pore diameters can be 10-20 mm).
6. The efficient grain threshing apparatus of claim 1, wherein the outer surface of the grinding roll is a roughened hard alloy layer.
7. The efficient grain threshing device of claim 1, wherein the straw stirring motor is connected with the straw stirring shaft through a speed reducer.
8. The efficient grain threshing apparatus of claim 1 wherein the grist chamber outlet is an annular opening.
9. The efficient grain threshing apparatus according to claim 1, wherein the sieve pore size of the side bran sieve plate and the bottom bran sieve plate is smaller than the grain size and larger than the diameter of the bran material (for example, the sieve pore size may be 2-8 mm).
10. The efficient grain threshing apparatus of claim 1, wherein the mesh size of the air exhaust sieve plate is smaller than the diameter of the bran material.
CN202010919411.6A 2020-09-04 2020-09-04 High-efficient grain threshing device Withdrawn CN111990065A (en)

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CN202010919411.6A CN111990065A (en) 2020-09-04 2020-09-04 High-efficient grain threshing device

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Application Number Priority Date Filing Date Title
CN202010919411.6A CN111990065A (en) 2020-09-04 2020-09-04 High-efficient grain threshing device

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112756033A (en) * 2020-12-24 2021-05-07 徐州兰岳企业管理服务有限公司 Rice hulling device
CN113079832A (en) * 2021-04-27 2021-07-09 韦红军 Novel batch sesame threshing equipment
CN113713882A (en) * 2021-07-28 2021-11-30 武汉轻工大学 Roller belt type rice huller for hulling unconventional rice
CN115843545A (en) * 2023-02-23 2023-03-28 黑龙江省农业科学院绥化分院 Rice thresher of high-efficient separation cereal grain and grain sediment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112756033A (en) * 2020-12-24 2021-05-07 徐州兰岳企业管理服务有限公司 Rice hulling device
CN113079832A (en) * 2021-04-27 2021-07-09 韦红军 Novel batch sesame threshing equipment
CN113713882A (en) * 2021-07-28 2021-11-30 武汉轻工大学 Roller belt type rice huller for hulling unconventional rice
CN113713882B (en) * 2021-07-28 2023-02-17 武汉轻工大学 Roller belt type rice huller for hulling unconventional rice
CN115843545A (en) * 2023-02-23 2023-03-28 黑龙江省农业科学院绥化分院 Rice thresher of high-efficient separation cereal grain and grain sediment

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Application publication date: 20201127