CN109156145B - Semi-feeding type rice combine harvester - Google Patents

Semi-feeding type rice combine harvester Download PDF

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Publication number
CN109156145B
CN109156145B CN201810891842.9A CN201810891842A CN109156145B CN 109156145 B CN109156145 B CN 109156145B CN 201810891842 A CN201810891842 A CN 201810891842A CN 109156145 B CN109156145 B CN 109156145B
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Prior art keywords
threshing
sieve plate
rice
sieve
channel
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CN201810891842.9A
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Chinese (zh)
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CN109156145A (en
Inventor
徐浩
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Yishui Xingda Machinery Co.,Ltd.
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Yishui Xingda Machinery Co ltd
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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D41/00Combines, i.e. harvesters or mowers combined with threshing devices
    • A01D41/02Self-propelled combines
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D41/00Combines, i.e. harvesters or mowers combined with threshing devices
    • A01D41/12Details of combines
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D43/00Mowers combined with apparatus performing additional operations while mowing
    • A01D43/08Mowers combined with apparatus performing additional operations while mowing with means for cutting up the mown crop, e.g. forage harvesters
    • 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
    • A01F12/22Threshing cylinders with teeth
    • 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
    • A01F12/446Sieving means

Abstract

The invention belongs to the technical field of combine harvesters, and particularly relates to a semi-feeding type rice combine harvester which comprises a threshing device, wherein the threshing device comprises a shell, a threshing roller, a threshing tooth I, a sieve plate II and an air blower; the threshing cylinder is positioned in the shell; the threshing teeth I are circumferentially and uniformly fixed on the threshing cylinder and used for threshing rice; the first sieve plate is arc-shaped, is positioned below the threshing cylinder, two ends of the first sieve plate are hinged to the shell, a first through hole is formed in the first sieve plate, and the first sieve plate is used for sieving rice; the second sieve plate is positioned below the sieve plate and fixed on the shell, a second through hole is formed in the second sieve plate, and the second sieve plate is used for further sieving the paddy; a first channel is arranged on the left side of the shell, a second channel is arranged on the right side of the shell, and an arc-shaped ramp is arranged at the bottom of the first channel; the blower is arranged on the right side of the shell and is connected with the channel II.

Description

Semi-feeding type rice combine harvester
Technical Field
The invention belongs to the technical field of combine harvesters, and particularly relates to a semi-feeding type rice combine harvester.
Background
With the development of human production technology, both hands of human beings are gradually liberated, more and more products convenient for human production are manufactured, the half-feed rice combine harvester is one of the rice combine harvesters, the half-feed rice combine harvester is a harvester which only sends rice spikes into a threshing device for threshing, the threshing device is a core component of the half-feed rice combine harvester, and the threshing device can automatically thresh the rice, thereby providing great convenience for the human beings; however, the existing threshing device of the semi-feeding type rice combine still has many disadvantages, such as how to prolong the service life of a grass chopping knife in the threshing device, how to remove rice more completely, how to reduce the blighted grain and straw content in the finally collected rice, and how to improve the purity of the finally collected rice, and the problems need to be solved.
Patent document 1: grass chopping and threshing device of a semi-feeding combine harvester, application number: 2011100204927
In the patent document 1, the straw stalks are crushed by arranging the straw crushing cutter with the arc-shaped sawtooth side on one side of the inlet of the threshing chamber, but the service life of the straw crushing cutter can only be prolonged to a certain extent, and the straw crushing cutter is constantly contacted with the straw stalks to easily blunt the blade edge.
Disclosure of Invention
In order to make up the defects of the prior art, the semi-feeding type rice combine harvester provided by the invention has the advantages that the threshing cylinder is provided with the plurality of groups of cutters, so that the condition that a single cutter is always contacted with the straw stalks is avoided, and the service life of the cutter is prolonged; the invention screens the rice by the first sieve plate and the second sieve plate, so that the purity of the finally collected rice is higher.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a semi-feeding type rice combine harvester which comprises a threshing device, wherein the threshing device comprises a shell, a threshing roller, a threshing tooth I, a sieve plate II and a blower; the threshing cylinder is positioned in the shell; the first threshing teeth are circumferentially and uniformly fixed on the threshing cylinder and used for threshing rice; the first sieve plate is arc-shaped and is positioned below the threshing cylinder, two ends of the first sieve plate are hinged to the shell, a first through hole is formed in the first sieve plate, and the first sieve plate is used for sieving rice; the second sieve plate is positioned below the sieve plate and fixed on the shell, the second sieve plate is provided with a second through hole and used for further sieving the paddy, and the first sieve plate and the second sieve plate are matched with each other to enable the paddy to be sunned and separated more cleanly and prevent straw from mixing into the paddy, so that the purity of grains is improved; the left side of the shell is provided with a first channel, the right side of the shell is provided with a second channel, the bottom of the first channel is provided with a circular arc ramp, and the circular arc ramp is arranged to prevent the rice from being blown out when the air blower works, so that the waste of the rice is avoided, the yield is improved, and the practicability of the device is improved; the air blower is installed on the right side of the shell and connected with the channel two phase, and the air blower is used for blowing out the rice straw mixed in the rice and the blighted rice from the channel one phase to the inside of the shell, so that the rice straw mixed in the rice and the blighted rice are effectively reduced, the purity of the rice is improved, the workload of subsequent screening work is reduced, the labor time is reduced, the production efficiency is improved, and the practicability of the device is improved. When the threshing device works, the threshing roller rotates to drive the threshing teeth to thresh the paddy, the threshed paddy is subjected to primary screening through the first sieve plate, so that the paddy falls from the first through hole on the first sieve plate, in the falling process of the paddy, the blower works to blow out the straw mixed with the paddy and blighted paddy from the first channel into the shell, the purity of the paddy is effectively improved, the workload of subsequent screening work is reduced, the labor time is reduced, the production efficiency is improved, the automation degree of the device is improved, the paddy finally falling onto the second sieve plate is screened again through the second sieve plate and finally enters a related collecting device, the first sieve plate and the second sieve plate are matched with each other, so that the paddy is screened more cleanly, the purity of the paddy is further improved, and the practicability of the device is improved; in-process, corn rolls and passes through sieve two on sieve two under the effect of air-blower to improved the speed that corn passes through sieve two, improved production efficiency, avoided corn to pile up the through-hole two on the jam sieve two on sieve two simultaneously, the arc ramp that sets up on the passageway one has avoided the cereal on the sun-curing plate to be blown off sieve two by the air-blower, thereby improved the quantity of the corn that finally collects, avoided the waste, and then improved output.
The through holes II are splayed holes which are used for improving the speed of the paddy rice passing through the sieve plate II. During operation, the speed of the paddy passing through the second sieve plate is improved due to the arrangement of the hole in the shape of the Chinese character 'ba', accumulation of the paddy on the second sieve plate is avoided, and therefore the second through hole is prevented from being blocked, the speed of screening the paddy is improved, and production efficiency is improved.
The threshing cylinder is also provided with a threshing tooth II; the second threshing teeth are smaller than the first threshing teeth, the second threshing teeth and the first threshing teeth are alternately arranged, and the second threshing teeth are used for threshing the rice. During operation, threshing teeth two and threshing teeth one mutually support and thresh the corn, threshing teeth one and threshing teeth two different sizes and alternative arrangement for the corn is better with threshing teeth one, threshing teeth two contacts, has improved thresher's efficiency, makes the corn thresh more completely, has avoided the waste of corn, thereby has improved corn output, has improved the performance of device.
The threshing device is characterized in that the threshing cylinder is also provided with a cutter, the cutter is of a wave-shaped structure, the cutter penetrates through the threshing teeth I and the threshing teeth II and is fixed on the threshing cylinder, the cutter is used for assisting threshing, and meanwhile, the cutter is used for crushing straws entering the threshing device, so that the straws are prevented from being wound on the threshing cylinder to damage the threshing cylinder. When the threshing device works, the cutter, the threshing teeth I and the threshing teeth II are matched with each other, so that the threshing speed of the threshing device is effectively improved, the working efficiency is improved, meanwhile, the straw entering the threshing cylinder is crushed by the cutter, the straw is prevented from being wound on the threshing cylinder and damaging the threshing cylinder, the threshing speed of the threshing teeth I and the threshing teeth II and the removal rate efficiency of the paddy are reduced by the presence of the straw, incomplete threshing is avoided, the working efficiency of the threshing device is improved, the waste of the paddy is avoided, and the yield of the paddy is improved; in the process, the design of the wave-shaped cutter enables the straws to slide from wave-shaped wave crests to wave troughs, so that sawing force is generated, the cutting performance of the cutter is improved, and the straws are fully cut.
The first sieve plate and the second sieve plate are formed by combining a plurality of sieve plate pieces, the sieve plate pieces are connected through connecting pieces, and L-shaped bulges are arranged at the joints of the sieve plate pieces. During operation, for avoiding the sieve piece processing degree of difficulty of large-size piece high, the price is expensive, dismantle trouble and be difficult for washing these problems, sieve one forms with the combination of sieve two-way many sieve piece, the cost of sieve one with sieve two has been reduced, the dismantlement degree of difficulty of sieve one with sieve two has been reduced simultaneously, the washing of sieve one with sieve two has been made things convenient for, avoided blockking up with sieve two because of the abluent sieve one that causes, corrode, thereby make sieve one and sieve two sieve screening of efficient to corn all the time.
The connecting piece comprises a connecting block, a clamping block, a pull rope, a sliding block and a bolt; the connecting block is provided with a third channel, a threaded hole and a slideway, the third channel horizontally penetrates through the connecting block, the threaded hole is positioned above the third channel, and the slideway is positioned below the third channel; the clamping blocks are of a door-shaped structure, the number of the clamping blocks is two, the clamping blocks are oppositely arranged on the left and right sides, the upper left end of the left clamping block and the upper right end of the right clamping block respectively penetrate through the third channel and are arranged on the connecting block, and the clamping blocks are used for connecting the two sieve plates together; the pull rope is positioned in the third channel, two ends of the pull rope are respectively fixed on the end parts of the left clamping block and the right clamping block extending into the third channel, and the pull rope is used for providing clamping force required by the clamping blocks; the sliding block is arranged in a slide way in the connecting block, a third through hole is formed in the slide way, the pull rope penetrates through the third through hole, and the sliding block is used for driving the pull rope to enable the clamping block to move relatively; the bolt is installed in the connecting block through a threaded hole and used for extruding the sliding block. During operation, press from both sides the gate-shaped setting of tight piece and mutually support with the L shape arch of sieve piece junction for the better sieve piece that will constitute sieve one and sieve two of connecting piece is fixed together, thereby realizes the equipment of sieve piece, when pressing from both sides tight piece and being connected to on the sieve piece, extrudees the slider through revolving the bolt soon, makes the stay cord move under the effect of slider, makes about two press from both sides tight piece relative motion, thereby realizes the clamp of sieve piece and tightly realizes the equipment of sieve one and sieve two.
The first sieve plate is made of elastic materials, a plurality of hemispherical lugs are arranged on the first sieve plate, and the hemispherical lugs are distributed on the first sieve plate in a long strip shape; a plurality of grooves are circumferentially arranged on the threshing cylinder; the threshing cylinder is also provided with a cylinder, an air bag and a poke rod; the number of the cylinders is multiple, piston rods of the cylinders are connected with the bottom of the cutter, and the cylinders are used for driving the cutter to move; the air bag is positioned in the groove, an air path is arranged between the air bag and the air cylinder, and the air bag is used for supplying air to the air cylinder; one end of the poke rod is connected in the groove through an air bag, the other end of the poke rod is positioned outside the threshing cylinder, one end of the poke rod, which is positioned outside the threshing cylinder, is provided with a spherical bulge, the poke rod is used for touching the hemispherical convex block to drive the sieve plate to vibrate, and the poke rod is used for extruding the air bag. When the threshing device works, the poking rod rotates along with the threshing cylinder, and the poking rod is in contact with the hemispherical convex block on the first sieve plate in the rotating process, so that the first sieve plate is driven to vibrate, rice on the first sieve plate better passes through the first sieve plate, the working efficiency of the threshing device is improved, the performance of the threshing device is improved, excessive rice accumulated on the first sieve plate is prevented from blocking the first through hole on the first sieve plate, the threshing cylinder is prevented from being stuck due to rice accumulation, and the practicability of the threshing device is improved; in the process, the strip-shaped distribution of the hemispherical bumps ensures that the poke rod can be continuously contacted with the hemispherical bumps, thereby ensuring that the sieve plate shakes at a moment, ensuring that the paddy can continuously and efficiently pass through the first sieve plate, and further improving the working efficiency of the device; the poke rod is connected in the groove of the threshing cylinder through the spring, so that the poke rod can gradually retract into the groove of the threshing cylinder in the process of contacting with the hemispherical protrusion, and the damage to the poke rod and the sieve plate I caused by overlarge contact force between the poke rod and the hemispherical protrusion is avoided, so that the service life of the device is prolonged, and the practicability of the device is improved; meanwhile, the poke rod extrudes the air bag when retracting, and the air cylinder drives the cutter to move under the action of the air bag, so that the cutter can better cut the straw stalks, the straw stalks are cut up, and meanwhile, threshing is more thorough.
The invention has the following beneficial effects:
1. according to the semi-feeding type rice combine harvester, the threshing cylinder is provided with the plurality of groups of cutters, so that a single cutter is prevented from being always contacted with rice straws, and the service life of the cutter is prolonged; the invention screens the rice by the first sieve plate and the second sieve plate, so that the purity of the finally collected rice is higher.
2. According to the semi-feeding type rice combine harvester, the blower is matched with the first sieve plate and the second sieve plate, so that blighted grains and straws in the rice are blown out of the shell under the action of the blower in the process that the rice falls into the second sieve plate from the first sieve plate, and the purity of the finally collected rice is higher.
3. According to the semi-feeding type rice combine harvester, the threshing teeth I and the threshing teeth II which are different in size are matched with each other, so that rice is removed more cleanly in the removing process, waste of the rice is reduced, and the yield of the rice is improved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
fig. 4 is a schematic structural diagram of a first screen plate of the invention;
FIG. 5 is a schematic view of the construction of the connector of the present invention;
in the figure: the threshing device comprises a shell 1, a threshing roller 2, a threshing tooth I3, a sieve plate I4, a sieve plate II 5, a blower 6, a connecting piece 7, a threshing tooth II 21, a cutter 22, a poke rod 23, an air cylinder 24, an air bag 25, a hemispherical bump 41, a through hole II 51, a connecting block 71, a clamping block 72, a pull rope 73, a sliding block 74 and a bolt 75.
Detailed Description
The structure of a half-feed type rice combine threshing device according to an embodiment of the present invention will be described below with reference to fig. 1 to 5.
As shown in fig. 1, the semi-feeding type rice combine harvester of the invention comprises a threshing device, wherein the threshing device comprises a shell 1, a threshing cylinder 2, a threshing tooth I3, a sieve plate I4, a sieve plate II 5 and a blower 6; the threshing cylinder 2 is positioned inside the shell 1; the threshing teeth I3 are circumferentially and uniformly fixed on the threshing cylinder 2, and the threshing teeth I3 are used for threshing rice; the first sieve plate 4 is arc-shaped, the first sieve plate 4 is positioned below the threshing cylinder 2, two ends of the first sieve plate 4 are hinged to the shell 1, a first through hole is formed in the first sieve plate 4, and the first sieve plate 4 is used for sieving rice; the second sieve plate 5 is positioned below the first sieve plate 4, the second sieve plate 5 is fixed on the shell 1, the second sieve plate 5 is provided with a second through hole 51, the second sieve plate 5 is used for further sieving the paddy, the first sieve plate 4 and the second sieve plate 5 are matched with each other, so that the paddy can be sunned and separated more cleanly, straw is prevented from being mixed into the paddy, and the purity of grains is improved; the left side of the shell 1 is provided with a first channel, the right side of the shell 1 is provided with a second channel, the bottom of the first channel is provided with an arc-shaped ramp, and the arc-shaped ramp is arranged to prevent the rice from being blown out when the air blower 6 works, so that the waste of the rice is avoided, the yield is improved, and the practicability of the device is improved; the utility model discloses a rice screening device, including casing 1, air-blower 6, passageway two phase connection, air-blower 6 is arranged in blowing off casing 1 inside with sneak straw and blighted rice in the rice by passageway one to the effectual straw and blighted rice of sneaking in the rice that has reduced has improved the purity of rice, has reduced the work load of subsequent screening work, has reduced working time, has improved production efficiency, has improved the practicality of device. When the threshing device works, the threshing roller 2 rotates to drive the threshing teeth I3 to thresh rice, the threshed rice is subjected to primary screening through the sieve plate I4, so that the rice falls from the through holes I in the sieve plate I4, the blower 6 works to blow out rice mixed in the rice and blighted rice from the channel I into the shell 1 in the falling process of the rice, the purity of the rice is effectively improved, the workload of subsequent screening work is reduced, the labor time is reduced, the production efficiency is improved, the automation degree of the device is improved, the rice finally falling on the sieve plate II 5 is subjected to secondary screening through the sieve plate II 5 and finally enters a related collection device, the sieve plate I4 and the sieve plate II 5 are matched with each other to enable the rice to be screened more cleanly, the purity of the rice is further improved, and the practicability of the device is improved; in-process, corn rolls and passes through two 5 on two 5 sieve plates under the effect of air-blower 6, thereby the speed that corn passes through two 5 sieve plates has been improved, the production efficiency is improved, simultaneously avoided corn to pile up two 51 through-holes on two 5 sieve plates of jam sieve on two 5 sieve plates, the arc ramp that sets up on the passageway one has avoided the cereal on the sunning plate to be blown off two 5 sieve plates by air-blower 6, thereby the quantity of the corn that finally collected has been improved, waste is avoided, and then output is improved.
As shown in fig. 1, the second through holes 51 are splayed holes, and the splayed holes are used for increasing the speed of rice passing through the second sieve plate 5. During operation, the speed that corn passes through the second 5 sieve plates is improved through the arrangement of the hole shaped like the Chinese character 'ba', and the accumulation of the corn on the second 5 sieve plates is avoided, so that the second 51 through holes are prevented from being blocked, the speed of sieving the corn is improved, and the production efficiency is improved.
As shown in fig. 1 and 2, the threshing cylinder 2 is further provided with a second threshing teeth 21; the second threshing teeth 21 are smaller than the first threshing teeth 3, the second threshing teeth 21 and the first threshing teeth 3 are alternately arranged, and the second threshing teeth 21 are used for threshing the rice. During operation, threshing teeth two 21 and threshing teeth one 3 mutually support and thresh the corn, threshing teeth one 3 with threshing teeth two 21 different sizes with arrange in turn for the corn better with threshing teeth one 3, the contact of threshing teeth two 21, improved thresher's efficiency, make the corn thresh more completely, avoided the waste of corn, thereby improved corn output, improved the performance of device.
As shown in fig. 1 and 2, the threshing cylinder 2 is further provided with a cutter 22, the cutter 22 is of a wave structure, the cutter 22 penetrates through the threshing teeth one 3 and the threshing teeth two 21 and is fixed on the threshing cylinder 2, the cutter 22 is used for assisting in threshing, and the cutter 22 is used for crushing straws entering the threshing device, so that the straws are prevented from being wound on the threshing cylinder 22 to damage the threshing cylinder 22. During operation, the cutter 22 is matched with the threshing teeth I3 and the threshing teeth II 21 to effectively improve the threshing speed of the threshing device, so that the working efficiency is improved, meanwhile, the existence of the cutter 22 crushes straws entering the threshing cylinder 22, the straws are prevented from being wound on the threshing cylinder 22 to damage the threshing cylinder 22, the existence of the straws is avoided, the threshing speed of the threshing teeth I3 and the threshing teeth II 21 and the removal rate efficiency of paddy are reduced, incomplete threshing is avoided, the working efficiency of the device is improved, the waste of the paddy is avoided, and the yield of the paddy is improved; in the process, the design of the wave-shaped cutter 22 enables the straws to slide from wave-shaped wave crests to wave troughs, so that sawing force is generated, the cutting performance of the cutter 22 is improved, and the straws are fully cut.
As shown in fig. 4 and 5, the first sieve plate 4 and the second sieve plate 5 are formed by combining a plurality of sieve plate sheets, the sieve plate sheets are connected through a connecting piece 7, and the joint of the sieve plate sheets is provided with an L-shaped bulge. The during operation, for avoiding the sieve piece processing degree of difficulty of large-size piece high, the price is expensive, dismantle trouble and be difficult for washing these problems, sieve one 4 forms through the combination of multi-disc sieve piece with sieve two 5, the cost of sieve one 4 and sieve two 5 has been reduced, the dismantlement degree of difficulty of sieve one 4 and sieve two 5 has been reduced simultaneously, the washing of sieve one 4 and sieve two 5 has been made things convenient for, avoided blockking up with sieve two 5 because of the unclean sieve one 4 that causes of washing, corrode, thereby make sieve one 4 and sieve two 5 sieve the sieving of efficient to corn all the time.
As shown in fig. 5, the connecting member 7 includes a connecting block 71, a clamping block 72, a pulling rope 73, a sliding block 74 and a bolt 75; the third channel, the threaded hole and the slideway are arranged on the connecting block 71, the third channel horizontally penetrates through the connecting block 71, the threaded hole is positioned above the third channel, and the slideway is positioned below the third channel; the clamping blocks 72 are of a door-shaped structure, the number of the clamping blocks 72 is two, the clamping blocks 72 are arranged oppositely from left to right, the left upper end of the left clamping block 72 and the right upper end of the right clamping block 72 respectively penetrate through the third channel and are arranged on the connecting block 71, and the clamping blocks 72 are used for connecting two sieve plates together; the pulling rope 73 is positioned in the third channel, two ends of the pulling rope 73 are respectively fixed on the end parts of the left clamping block 72 and the right clamping block 72 which extend into the third channel, and the pulling rope 73 is used for providing clamping force required by the clamping blocks 72; the sliding block 74 is arranged in a slide way in the connecting block 71, a third through hole is formed in the slide way, the pull rope 73 penetrates through the third through hole, and the sliding block 74 is used for driving the pull rope 73 to enable the clamping block 72 to move relatively; the bolt 75 is installed in the connecting block 71 through a threaded hole, and the bolt 75 is used for pressing the slider 74. During operation, press from both sides the gate-shaped setting of tight piece 72 and mutually support with the L shape arch of sieve piece junction for the better sieve piece that will constitute sieve one 4 and sieve two 5 of connecting piece 7 is fixed together, thereby realize the equipment of sieve piece, when pressing from both sides tight piece 72 and being connected to on the sieve piece, extrude slider 74 through revolving screw bolt 75, make stay cord 73 move under the effect of slider 74, make two about press from both sides tight piece 72 relative motion, thereby realize the clamp of sieve piece and press from both sides the tight, realize the equipment of sieve one 4 and sieve two 5.
As shown in fig. 1, 3 and 4, the first sieve plate 4 is made of an elastic material, a plurality of hemispherical bumps 41 are arranged on the first sieve plate 4, and the hemispherical bumps 41 are distributed on the first sieve plate 4 in a long strip shape; a plurality of grooves are circumferentially arranged on the threshing cylinder 2; the threshing cylinder 2 is also provided with an air cylinder 24, an air bag 25 and a poke rod 23; the number of the air cylinders 24 is multiple, piston rods of the air cylinders 24 are connected with the bottoms of the cutters 22, and the air cylinders 24 are used for driving the cutters 22 to move; the air bag 25 is positioned in the groove, an air path is arranged between the air bag 25 and the air cylinder 24, and the air bag 25 is used for supplying air to the air cylinder 24; one end of the poke rod 23 is connected in the groove through the air bag 25, the other end of the poke rod 23 is positioned outside the threshing cylinder 2, one end of the poke rod 23, which is positioned outside the threshing cylinder 2, is provided with a spherical bulge, the poke rod 23 is used for touching the hemispherical convex block 41 to drive the sieve plate I4 to vibrate, and the poke rod 23 is used for extruding the air bag 25. During operation, the poke rod 23 rotates along with the threshing cylinder 2, and the poke rod 23 is in contact with the hemispherical bump 41 on the sieve plate I4 in the rotating process, so that the sieve plate I4 is driven to vibrate, rice on the sieve plate I4 better passes through the sieve plate I4, the working efficiency of the device is improved, the performance of the device is improved, meanwhile, the situation that excessive rice accumulated on the sieve plate I4 blocks a first through hole on the sieve plate I4 is avoided, the situation that the rice is accumulated to block the threshing cylinder 2 is avoided, and the practicability of the device is improved; in the process, the strip-shaped distribution of the hemispherical bumps 41 ensures that the poke rod 23 can be continuously contacted with the hemispherical bumps 41, so that the shaking of the sieve plate I4 at any moment is ensured, the rice can continuously and efficiently pass through the sieve plate I4, and the working efficiency of the device is improved; the poke rod 23 is connected in the groove of the threshing cylinder 2 through a spring, so that the poke rod 23 can gradually retract into the groove of the threshing cylinder 2 in the process of contacting with the hemispherical protrusion, and the poke rod 23 and the sieve plate I4 are prevented from being damaged due to overlarge contact force between the poke rod 23 and the hemispherical protrusion 41, so that the service life of the device is prolonged, and the practicability of the device is improved; meanwhile, when the poke rod 23 retracts, the air bag 25 is squeezed, the air cylinder 24 drives the cutter 22 to move under the action of the air bag 25, so that the cutter 22 can better cut the straw stalks, the straw stalks are cut up, and meanwhile, threshing is more thorough.
The specific working process is as follows:
during operation, threshing cylinder 2 rotates and drives threshing teeth one 3 and threshing teeth two 21 and threshes the corn, and threshing teeth one 3 and threshing teeth two 21's different size and alternative arrangement for the corn is better with threshing teeth one 3, the contact of threshing teeth two 21, has improved thresher's efficiency, makes the corn thresh more completely, has avoided the waste of corn, thereby has improved corn output, has improved the performance of device. The cutter 22 is matched with the threshing teeth I3 and the threshing teeth II 21 to effectively improve the threshing speed of the threshing device, so that the working efficiency of the device is improved, meanwhile, the existence of the cutter 22 crushes the straws entering the threshing cylinder 22, the straws are prevented from being wound on the threshing cylinder 22 to damage the threshing cylinder 22, the existence of the straws is avoided, the threshing speed and the threshing efficiency of the threshing teeth I3 and the threshing teeth II 21 are reduced, incomplete threshing is avoided, the working efficiency of the device is improved, the waste of rice is avoided, and the yield of the rice is further improved; in the process, the design of the wave-shaped cutter 22 enables the straws to slide from wave-shaped wave crests to wave troughs, so that sawing force is generated, the cutting performance of the cutter 22 is improved, and the straws are fully cut.
The threshed paddy is screened for the first time through the first sieve plate 4, so that the paddy falls down from the first through hole on the first sieve plate 4, while threshing, the poke rod 23 rotates along with the roller and contacts with the hemispherical convex block 41 on the sieve plate I4, thereby driving the sieve plate I4 to vibrate, leading the paddy on the sieve plate I4 to better pass through the sieve plate I4, improving the working efficiency of the device and the performance of the device, meanwhile, the situation that excessive rice is accumulated on the sieve plate I4 to block the through hole I on the sieve plate I4 is avoided, the threshing cylinder 2 is prevented from being stuck by the accumulated rice, the practicability of the device is improved, the shifting rod 23 can be continuously contacted with the hemispherical convex block 41 due to the long-strip distribution of the hemispherical convex block 41, therefore, the shaking of the sieve plate I4 at any moment is guaranteed, rice can continuously and efficiently pass through the sieve plate I4, and the working efficiency of the device is improved; the poke rod 23 is connected in the groove of the threshing cylinder 2 through the air bag 25, so that the poke rod 23 can be gradually retracted into the groove of the threshing cylinder 2 in the process of contacting with the hemispherical protrusion, the situation that the poke rod 23 and the sieve plate are damaged by overlarge contact force of the hemispherical convex block 41 is avoided, the service life of the device is prolonged, the practicability of the device is improved, the air bag 25 is extruded by the poke rod 23, the air cylinder 24 drives the cutter 22 to move under the action of the air bag 25, the rice straw is cut more fully, the threshing is more complete simultaneously, and the performance of the device is improved.
In the falling process of the rice, the blower 6 works to blow the rice straws mixed in the rice and blighted rice out of the first channel out of the shell 1, so that the purity of the rice is effectively improved, the workload of subsequent screening work is reduced, the labor time is reduced, the production efficiency is improved, the automation degree of the device is improved, the rice finally falling on the second sieve plate 5 is screened again through the second sieve plate 5 and finally enters the related collecting device, the first sieve plate 4 and the second sieve plate 5 are matched with each other to enable the rice to be screened more cleanly, the purity of the rice is further improved, and the practicability of the device is improved; in-process, corn rolls and passes through two 5 on two 5 sieve plates under the effect of air-blower 6, thereby the speed that corn passes through two 5 sieve plates has been improved, the production efficiency is improved, simultaneously, corn has been avoided piling up two 51 through-holes on two 5 sieve plates on sieve plate, the arc ramp that sets up on the passageway one has avoided cereal to be blown off two 5 sieve plates by air-blower 6, thereby the quantity of the corn that finally collected has been improved, the waste is avoided, and then the output is improved, the existence of the "eight" font through-hole that sets up on two 5 sieve plates, the speed that corn leads to the sieve plate piece has been improved, rice has been avoided piling up on two 5 sieve plates, thereby two 51 through-holes have been avoided being blockked up, make two 5 sieve plates sieve corn fast-speed all the time, the production efficiency is improved.
In-process, sieve one 4 and sieve two 5 are formed by a plurality of sieve plate combinations, thereby effectively avoided the sieve plate processing degree of difficulty of large scale high, the price is noble, it is troublesome to dismantle, be difficult for abluent problem, the processing degree of difficulty and the processing cost of sieve one 4 and sieve two 5 have been reduced simultaneously, the dismantlement degree of difficulty of sieve one 4 and sieve two 5 has been reduced, make sieve one 4 and sieve two 5 be convenient for wash, avoided blockking up with sieve two 5 because of the unclean cause sieve one 4 and sieve two 5, corrode, thereby make sieve one 4 and sieve two 5 sieve all the time the efficient sieve to the corn. The sieve plate piece is in the assembling process, the door-shaped setting of pressing from both sides tight piece 72 is mutually supported with the L shape arch of sieve plate piece junction, make connecting piece 7 better will constitute sieve plate one 4 and sieve two 5 sieve plate piece fixed together, thereby realize the equipment of sieve plate piece, when pressing from both sides tight piece 72 and being connected to on the sieve plate piece, extrude slider 74 through revolving screw bolt 75, make stay cord 73 move under the effect of slider 74, make two clamp tight piece 72 relative motions about, thereby realize the clamp of sieve plate piece, realize the equipment of sieve plate one 4 and sieve two 5, bolt 75, slider 74 and stay cord 73 mutually support, make the sieve plate piece be connected inseparabler, and then improved the intensity of sieve plate one 4 and sieve two 5, the performance of sieve plate one 4 and sieve two 5 has been improved.
While one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.
(A) In the above embodiment, the shaking of the first sieve plate is realized by the contact of the poke rod and the hemispherical convex block, but the shaking of the first sieve plate can also be realized by directly contacting the threshing teeth with the hemispherical convex block.
Industrial applicability
According to the invention, the rice can be threshed efficiently by the threshing device of the half-feeding type rice combine harvester, the threshing is more complete, and the purity of the finally obtained rice is high, so that the threshing device of the half-feeding type rice combine harvester is useful in the technical field of the combine harvester.

Claims (4)

1. A half-feeding type rice combine harvester comprises a threshing device, and is characterized in that: the threshing device comprises a shell (1), a threshing roller (2), a threshing tooth I (3), a sieve plate I (4), a sieve plate II (5) and a blower (6); the threshing cylinder (2) is positioned in the shell (1); the threshing teeth I (3) are circumferentially and uniformly fixed on the threshing cylinder (2), and the threshing teeth I (3) are used for threshing rice; the first sieve plate (4) is arc-shaped, the first sieve plate (4) is positioned below the threshing cylinder (2), two ends of the first sieve plate (4) are hinged to the shell (1), a first through hole is formed in the first sieve plate (4), and the first sieve plate (4) is used for sieving rice; the second sieve plate (5) is positioned below the first sieve plate (4), the second sieve plate (5) is fixed on the shell (1), a second through hole (51) is formed in the second sieve plate (5), and the second sieve plate (5) is used for further sieving the paddy; a first channel is arranged on the left side of the shell (1), a second channel is arranged on the right side of the shell (1), and an arc-shaped ramp is arranged at the bottom of the first channel; the blower (6) is arranged on the right side of the shell (1), the blower (6) is connected with the channel II, and the blower (6) is used for blowing straws mixed in rice and blighted rice out of the shell (1) through the channel I;
a second threshing tooth (21) is also arranged on the threshing cylinder (2); the second threshing teeth (21) are smaller than the first threshing teeth (3), the second threshing teeth (21) and the first threshing teeth (3) are alternately arranged, and the second threshing teeth (21) are used for threshing the rice;
the threshing cylinder (2) is also provided with a cutter (22), the cutter (22) is of a wave-shaped structure, the cutter (22) penetrates through the threshing teeth I (3) and the threshing teeth II (21) and is installed on the threshing cylinder (2), the cutter (22) is used for assisting in threshing, and meanwhile, the cutter (22) is used for crushing straws entering the threshing device, so that the straws are prevented from being wound on the threshing cylinder (22) to damage the threshing cylinder (22);
the sieve plate I (4) is made of elastic materials, a plurality of hemispherical bumps (41) are arranged on the sieve plate I (4), and the hemispherical bumps (41) are distributed on the sieve plate I (4) in a long strip shape; a plurality of grooves are circumferentially arranged on the threshing cylinder (2); the threshing cylinder (2) is also provided with a cylinder (24), an air bag (25) and a poke rod (23); the number of the cylinders (24) is multiple, piston rods of the cylinders (24) are connected with the bottom of the cutter (22), and the cylinders (24) are used for driving the cutter (22) to move; the air bag (25) is positioned in the groove, an air path is arranged between the air bag (25) and the air cylinder (24), and the air bag (25) is used for supplying air to the air cylinder (24); poke rod (23) one end is passed through gasbag (25) and is connected in the recess, and poke rod (23) other end is located outside threshing cylinder (2), and poke rod (23) are located the outer one end of threshing cylinder (2) and are equipped with spherical arch, and poke rod (23) are used for touching hemisphere lug (41) and drive sieve (4) vibrations, and poke rod (23) are used for extrudeing gasbag (25) simultaneously.
2. A semi-feeding rice combine harvester according to claim 1, wherein: the second through hole (51) is an inverted V-shaped hole which is used for increasing the speed of rice passing through the second sieve plate (5).
3. A semi-feeding rice combine harvester according to claim 1, wherein: the sieve plate I (4) and the sieve plate II (5) are formed by combining a plurality of sieve plate pieces, the sieve plate pieces are connected through a connecting piece (7), and L-shaped bulges are arranged at the connecting parts of the sieve plate pieces.
4. A semi-feeding rice combine harvester according to claim 3, wherein: the connecting piece (7) comprises a connecting block (71), a clamping block (72), a pull rope (73), a sliding block (74) and a bolt (75); a third channel, a threaded hole and a slideway are arranged on the connecting block (71), the third channel horizontally penetrates through the connecting block (71), the threaded hole is positioned above the third channel, and the slideway is positioned below the third channel; the clamping blocks (72) are of a door-shaped structure, the number of the clamping blocks (72) is two, the clamping blocks (72) are arranged oppositely from left to right, the left upper end of the left clamping block (72) and the right upper end of the right clamping block (72) penetrate through the third channel respectively and are mounted on the connecting block (71), and the clamping blocks (72) are used for connecting the two sieve plates together; the pull rope (73) is positioned in the third channel, two ends of the pull rope (73) are respectively fixed on the end parts of the left clamping block (72) and the right clamping block (72) extending into the third channel, and the pull rope (73) is used for providing clamping force required by the clamping blocks (72); the sliding block (74) is installed in a slide way in the connecting block (71), a third through hole is formed in the slide way, the pull rope (73) penetrates through the third through hole, and the sliding block (74) is used for driving the pull rope (73) to enable the clamping block (72) to move relatively; the bolt (75) is installed in the connecting block (71) through a threaded hole, and the bolt (75) is used for extruding the sliding block (74).
CN201810891842.9A 2018-08-07 2018-08-07 Semi-feeding type rice combine harvester Active CN109156145B (en)

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CN110140517A (en) * 2019-04-09 2019-08-20 嘉兴市爵拓科技有限公司 Rice harvesting device
CN112718792A (en) * 2020-12-14 2021-04-30 湖北宜昌红源科技股份有限公司 Machine is rubbed to bottle head of medical treatment abandonment glass bottle
CN113680416B (en) * 2021-08-28 2022-09-27 于都县三星食品有限责任公司 Rice hull separation device and separation method for rice processing

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CN202738477U (en) * 2012-09-13 2013-02-20 四川安通农业机械制造有限公司 Full-feeding rape and half-feeding rice-wheat threshing machine
CN104981146A (en) * 2013-02-22 2015-10-14 株式会社久保田 Threshing device

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JP2002262649A (en) * 2001-03-13 2002-09-17 Iseki & Co Ltd Combine harvester
CN101911893A (en) * 2006-12-06 2010-12-15 株式会社久保田 Sheller unit
CN101773024A (en) * 2010-03-08 2010-07-14 山东理工大学 Self-priming composite roller type pre-cut rice threshing device
CN202262269U (en) * 2011-09-02 2012-06-06 吾拉木·阿卜杜克热木 Double-sieve wheat threshing and sorting machine
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