CN219844124U - Air-draft type wheat threshing and distributing machine - Google Patents
Air-draft type wheat threshing and distributing machine Download PDFInfo
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- CN219844124U CN219844124U CN202223362998.9U CN202223362998U CN219844124U CN 219844124 U CN219844124 U CN 219844124U CN 202223362998 U CN202223362998 U CN 202223362998U CN 219844124 U CN219844124 U CN 219844124U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract description 10
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
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- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 244000025254 Cannabis sativa Species 0.000 claims description 3
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- 230000003028 elevating effect Effects 0.000 claims 3
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- 239000000843 powder Substances 0.000 abstract description 14
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- 238000004140 cleaning Methods 0.000 abstract description 9
- 230000007547 defect Effects 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 description 6
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- 230000036461 convulsion Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
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- 230000005484 gravity Effects 0.000 description 2
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- 238000012423 maintenance Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
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- 239000008187 granular material Substances 0.000 description 1
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- 238000004064 recycling Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 235000015099 wheat brans Nutrition 0.000 description 1
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Abstract
The utility model relates to a grain threshing and cleaning machine in agricultural machinery, in particular to an air draft type wheat threshing and separating machine. The existing wheat threshing equipment has the defects of simple structure, low efficiency and serious dust pollution. The crushing and threshing mechanism is easy to block, the feeding port is close to the ground, and a shovel is easy to suck to cause safety accidents. The utility model comprises a frame, a feeding mechanism, a crushing threshing mechanism, a bottom sieve, an air draft separating mechanism, a wheat grain selecting mechanism, a straw separating mechanism and a transmission mechanism which are arranged on the frame. The utility model has compact structure, reasonable arrangement and low cost, the feeding port is convenient for feeding and improves the safety, and the feeding port is provided with the roller with adjustable feeding density, so that the speed of the wheat straw entering the crushing and threshing mechanism can be freely adjusted. The multi-layer screen is carefully selected to ensure the quality of wheat grains, the matched power is small, the grains and the powder are separated completely, the operation is not limited by the field, the semi-automatic charging is realized through alternate discharging of the two material distribution openings, and the semi-automatic charging is convenient for individual farmers to use.
Description
Technical Field
The utility model relates to a grain threshing and cleaning machine in agricultural machinery, in particular to an air draft type wheat threshing and separating machine.
Background
Because of the special geographical environment in the southern Xinjiang area, the planting method of the same species of fruit trees and grains is adopted since ancient times, a modern combine harvester cannot be used, and the operation can be completed only by a mode of collecting and then carrying out secondary processing, so that the independent wheat thresher of the link tractor has wide application, and the operation flow of the existing most of wheat thresher is as follows: the wheat straw is fed into the crushing threshing mechanism through the feed inlet by the manual work, then the straw is crushed and the grains are threshed by the crushing wheel rotating at a high speed, the crushed materials and the grains are screened and fall freely, the blowing grain sorting mechanism blows out the crushed materials outwards, the grains fall onto the shaking screen due to heavier weight, the grains slide into the pushing groove by the inclined plane after passing through the shaking screen, the auger type pushing mechanism and the lifting mechanism convey the grains to the secondary cleaning device, and the secondary cleaning device carries out secondary cleaning on the grains to obtain relatively clean grains. Therefore, the existing common machinery has the defects of simple structure, low efficiency and serious dust pollution during working, and is not thorough for separating straw from wheat grains. When threshing by the crushing and threshing mechanism, if too much material is fed, the crusher is easy to block, and the traditional solution is to enlarge the space by adjusting the height of the cover plate of the crushing and threshing mechanism, which is quite heavy and has low efficiency. The feeding port is close to the ground, and the shovel is easy to suck to generate safety accidents. The straw powder is blown out horizontally by wind and thrown on the ground, so that the waste of resources is caused while the cleaning difficulty is increased, the feeding method for feeding the cattle and sheep after the wheat straw powder, the wheat bran and a proper amount of water are stirred is adopted in Xinjiang, and the straw powder occupies an important position in livestock feed, but in the feeding process, the utilization rate of the wheat straw powder feed is restricted because proper cleaning and processing machinery is not available.
Disclosure of Invention
The utility model aims to overcome the defects of the existing threshing machine, and provides the air-draft type wheat threshing and separating machine which is compact in structure, reasonable in arrangement and low in cost, the feeding port is arranged at the height of 1.2 m and is as high as the elbow of a person, the feeding is convenient, the safety is improved, the feeding port is provided with the roller capable of adjusting the feeding density, the rate of the wheat straws entering the crushing and threshing mechanism can be freely adjusted according to personal habits, and the practicability is improved while the blockage is avoided. Meanwhile, the straw and wheat grains are cleaned, processed and separated, the quality of the wheat grains is guaranteed through the selection of the multi-layer screen mesh, the operation, the use and the carrying are convenient, the matched power is small, the grains and the straw powder are separated completely, the operation is not limited by sites, the semi-automatic charging is realized through the alternate discharging of the two downward straw powder distributing openings, the manpower is liberated, and the use of individual farmers is facilitated.
The utility model aims at realizing the following technical scheme:
an exhaust type wheat threshing and separating machine matched with a tractor comprises a frame, a feeding mechanism, a crushing and threshing mechanism, a bottom sieve, an exhaust separating mechanism, a wheat grain selecting mechanism, a lifting mechanism, a straw separating mechanism and a transmission mechanism, wherein the feeding mechanism, the crushing and threshing mechanism, the bottom sieve, the exhaust separating mechanism, the wheat grain selecting mechanism, the lifting mechanism, the straw separating mechanism and the transmission mechanism are arranged on the frame. The feeding mechanism is arranged in front of the crushing and threshing mechanism, the bottom screen is hung under the frame, the tail end of the bottom screen is provided with a lifting mechanism, a feeding hole of the lifting mechanism corresponds to the bottom of the tail end of the bottom screen, a discharging hole of the lifting mechanism corresponds to the wheat fine-selecting mechanism, the air draft separating mechanism is arranged on the left side of the crushing and threshing mechanism, the straw separating mechanism is communicated with the air draft separating mechanism and is arranged at the back, and the transmission mechanism is arranged on transmission shafts on the left side and the right side of the frame.
The feeding mechanism is fixed on the frame and consists of a feeding hopper and a roller arranged in the feeding hopper, the roller is fixed on a roller shaft, the roller shaft is arranged on the frame through a bearing, the roller shaft is a hollow shaft, one end of the roller shaft is fixedly provided with a feeding wheel, a crankshaft is arranged in the roller shaft, the roller shaft is connected with the crankshaft through the bearing, a toothed harrow is arranged on the crankshaft, the toothed harrow extends out of the roller through an elliptical opening on the roller wall, the roller drives the toothed harrow to rotate, when the roller rotates, the crankshaft keeps motionless, the center line of the roller has a certain distance deviation from the center line of the crankshaft, the distance between the center line of the crankshaft and the elliptical opening of the roller wall changes along with the rotation of the roller, the extending length of the toothed harrow on the upper half circle is short, and the extending length of the toothed harrow on the lower half circle is long. Wheat is raked into the crushing threshing bin, one end of the crankshaft is provided with an adjusting gear, and the angle between the crankshaft and the horizontal plane can be adjusted through the external gear so as to adjust the length of the whole toothed harrow outside the roller and adjust the feeding quantity.
The crushing and threshing mechanism is fixed on the frame and consists of a crushing and threshing circular frame, a grid-shaped arc-shaped bottom net and a cover cap, wherein the crushing and threshing circular frame is an annular iron frame formed by welding flat irons on the outer surface of a long shaft, a plurality of rows of grass crushing cutters are welded on the surface of the annular iron frame, two ends of a circular frame shaft are arranged on the frame through bearings, and crushing wheels and driving wheels are respectively fixed at two ends of the circular frame shaft; a grid-shaped arc-shaped bottom net is arranged below the crushing threshing circular frame and is fixed on the frame; the crushing threshing round frame is provided with a cover, the cover is a semicircular shell, the rear part is connected with the frame through a hinge, and the front part is screwed up through a bolt for convenient disassembly and maintenance.
The bottom screen is hung under the frame, and the bottom screen is wholly inclined, and is high on the right and low on the left. The bottom sieve left side top is equipped with convulsions separating mechanism, convulsions separating mechanism below intercommunication rectangle exhaust vent, exhaust vent opening towards the bottom sieve, exhaust vent opening width equals with the bottom sieve width, the bottom sieve is connected to the bottom sieve cam, the bottom sieve cam drives the shake of bottom sieve, make the ground wheat straw thing shake dust removal and pass through from the exhaust vent below, the ground wheat straw thing of sucking away by the exhaust vent, the wheat grain continues to slide to the left because of gravity is big. The bottom sieve is divided into a left part and a right part by taking an exhaust port as a boundary, wherein the sizes of sieve holes of the left part and the right part are different, and the sieve holes of the right part are small and are used for cleaning dust; the left part is large in screen holes and is used for screening wheat grains. The front of the left side of the bottom sieve is fixed with a lifting mechanism, a groove inclining forward is arranged below the left side of the bottom sieve, the tail end of the groove is connected with the lower part of the lifting mechanism, and the screened wheat grains are guided to enter the lifting mechanism.
The air draft separating mechanism is fixed on the left side of the frame and is parallel to the crushing and threshing mechanism, and the air draft separating mechanism consists of a fan box, fan blades, fan blade shafts, an air draft opening, a feeding opening and an adjusting opening. The fan box is internally provided with fan blades which are fixed on a fan blade shaft, the fan blade shaft is provided with an air suction wheel, the adjusting opening is a circular opening which is arranged on the box body and is opposite to the fan blade shaft, the adjusting opening is covered by an adjusting cover, the air pressure is adjusted through the size of the opening of the cover, the lower part of the adjusting opening is communicated with the air suction opening, and straw powder is sucked through the air suction opening; the rear part of the fan box is communicated with the feeding port through an air channel, and a grid plate port is arranged above the corner part of the air channel before being connected with the feeding port and is used for relieving wind pressure and removing dust; the vertical shielding plates with equal width are arranged above the grid plate openings, so that wind dust rushed out of the grid plate openings flies directly to the high altitude, and the injury to staff is reduced.
The straw distributing mechanism is fixed on the frame and consists of a feeding channel, a distributing plate and left and right distributing barrels. The feeding channel is communicated with the feeding port, the feeding channel is separated into a left feeding channel and a right feeding channel by the material separating plate, the left feeding channel is communicated with the left material separating barrel, the right feeding channel is communicated with the right material separating barrel, an exhaust pipe is arranged in the material separating barrel, the upper end of the exhaust pipe extends out of the material separating barrel, and the lower end of the exhaust pipe extends to half of the height of the material separating barrel. The material distributing plate is a plate arranged on the material feeding channel, the lower side of the plate is connected with an L-shaped rod, the plate is adjusted by rotating the L-shaped rod, the plate blocks the left material feeding channel or the right material feeding channel, and the alternate feeding of the two material distributing barrels can be realized.
The wheat grain selecting mechanism is fixed at the leftmost side of the frame and consists of a lifting mechanism, a two-layer screen, a feeding groove, a blowing channel, a discharging hole and a recovery baffle. The lifting mechanism is internally provided with a lifting belt and lifting spoons, the lifting spoons are connected with the lifting belt in a front-back mode and are uniformly and vertically distributed, and the lifting belt is rotated by the transmission mechanism and is used for scooping wheat grains onto the upper portion of the two-layer screen to fall down. The two layers of screens consist of an upper layer of screen and a lower layer of screen, the feeding groove is parallel to the two layers of screens in equal length below, the two layers of screens push wheat grains to be screened through inclined shaking, the upper layer of screens are large in holes, larger impurities are reserved, primary concentration is carried out, the lower layer of screens are small in holes, smaller impurities are reserved, secondary concentration is carried out, and finally full and clean wheat grains fall into the feeding groove. The blowing channel is located the terminal below of two-layer screen cloth and feed chute, and the opposite wheat grain baffle that is equipped with of blowing channel, and the wheat grain baffle is connected with the discharge gate, is equipped with the fan in the blowing channel, and through blowing with the debris that drops on the level outside the machine, and the wheat grain is heavier relatively, relies on the wheat grain baffle whereabouts to get into the discharge gate and accomplish the choice. The recovery baffle is positioned at the rearmost end of the wheat grain selecting mechanism, the lower part of the recovery baffle is aligned with the bottom screen, and the unexpected blown wheat grains and the straw powder which cannot be blown away can be blocked by the recovery baffle and recovered for selecting again.
The transmission mechanism consists of a driving wheel, a crushing wheel, a feeding wheel, an air pumping wheel, a bottom screen wheel, a driving wheel, a lifting wheel, a vibrating wheel, a fan wheel, a bottom screen cam, a two-layer screen cam and a speed reducer. The driving wheel is fixed on the frame, external power is connected with the driving wheel through the shaft coupler, the driving wheel drives the crushing wheel, the feeding wheel and the bottom sieve wheel to rotate respectively, and the bottom sieve wheel drives the bottom sieve cam to rotate through the speed reducer, and the bottom sieve cam drives the bottom sieve to shake. The crushing wheel and the air extracting wheel are arranged on the same shaft, the air extracting wheel is respectively connected with the driving wheel through a belt, the driving wheel and the two-layer screen cam are arranged on the same shaft, the driving wheel respectively drives the lifting wheel and the fan wheel to rotate through the belt, the lifting wheel drives the lifting mechanism to rotate, and the fan wheel drives the fan to rotate.
When in work, the external power drives the whole machine mechanism to operate through the driving wheel, and the whole machine enters a working state. Wheat is fed from a feeding port of a feeding hopper, the wheat is raked into a crushing threshing chamber through a roller tooth rake, crushing threshing is carried out in the crushing threshing chamber, and crushed grains, crushed stalks and other impurities fall into a bottom sieve through a grid bottom net to clean dust and gather and pass through an exhaust port. Straw is sucked away by the air suction opening, reaches two material distribution boxes in turn through the air suction mechanism and is discharged out of the machine for bagging, and wheat grains subjected to preliminary separation reach the wheat grain carefully selecting mechanism through the lifting mechanism, are carefully selected through the two layers of screens and the air blowing opening and finally fall into the discharge opening for bagging. The grain which is blown away carelessly enters a recycling device for secondary concentration.
The utility model has the advantages that:
the utility model has compact structure, reasonable arrangement and low cost, the feed inlet is arranged at the height of 1.2 meters and is as high as the elbow of a person, the safety is improved while feeding is convenient, the feed inlet is provided with the roller with adjustable feed density, the speed of the wheat straw entering the crushing threshing mechanism can be freely adjusted according to personal habits, and the practicability is improved while blocking is avoided. Can clear up processing and separation simultaneously straw and wheat, the quality of wheat has been guaranteed through multilayer screen cloth choice, and operation use and transport are convenient, and the power of joining in marriage is little, and granule and straw powder separation are clean, do not receive the place restriction during operation, and two decurrent straw powder divides the material mouth to take turns the ejection of compact and has realized semi-automatization and has filled, has liberated the manpower, and individual farmers of being convenient for use.
Description of the drawings:
FIG. 1 is a front elevational view of the overall structure of the present utility model;
FIG. 2 is a right side view of the overall structure of the present utility model;
FIG. 3 is a rear elevational view of the overall structure of the present utility model;
FIG. 4 is a schematic view of the kernel beneficiating mechanism in accordance with the present utility model;
FIG. 5 is a schematic representation of the operation of the feed roller of the present utility model.
Detailed Description
An exhaust type wheat threshing and distributing machine matched with a tractor comprises a frame, a feeding mechanism 1, a crushing and threshing mechanism 2, a bottom screen 3, an exhaust separating mechanism 4, a wheat grain selecting mechanism 5, a lifting mechanism 5.1, a straw distributing mechanism 6 and a transmission mechanism 7 which are arranged on the frame. The feeding mechanism 1 is arranged in front of the crushing and threshing mechanism 2, the bottom sieve 3 is hung under the frame, the tail end of the bottom sieve is provided with a lifting mechanism 5.1, a feeding hole 5.1.4 of the lifting mechanism corresponds to a bottom sieve groove 3.3 at the tail end of the bottom sieve, a discharging hole 5.1.3 of the lifting mechanism corresponds to a wheat fine-selection mechanism 5, the air draft separating mechanism 4 is arranged on the left side of the crushing and threshing mechanism 2, the straw separating mechanism 6 is communicated with the air draft separating mechanism 4 and is arranged at the back, and the transmission mechanism 7 is arranged on transmission shafts on the left side and the right side of the frame.
The feeding mechanism 1 is fixed on a frame, the feeding mechanism 1 is composed of a feeding hopper 1.1 and a roller 1.2 arranged in the feeding hopper 1.1, the roller 1.2 is fixed on a roller shaft 1.2.1, the roller shaft 1.2.1 is arranged on the frame through a bearing, the roller shaft 1.2.1 is a hollow shaft, one end of the roller shaft 1.2.1 is fixed with a feeding wheel 7.2, a crankshaft 1.2.2 is arranged in the roller shaft 1.2.1, the roller shaft 1.2.1 is connected with the crankshaft 1.2.2 through a bearing, a toothed harrow 1.2.3 is arranged on the crankshaft 1.2.2, the toothed harrow 1.2.3 extends out of the roller 1.2 through an oval opening on the roller wall, the roller 1.2 drives the toothed harrow 1.2.3 to rotate, when the roller 1.2 rotates, the crankshaft 1.2.2 keeps still, the center line of the roller 1.2 has a certain distance deviation from the center line of the crankshaft 1.2.2.2, the center line of the crankshaft and the length of the toothed harrow 1.2.3 extends out of the toothed harrow along with the oval opening of the roller wall, and the length of the toothed harrow 1.2.3 extends out of the toothed harrow varies along with the rotation of the upper half-circle. The wheat is raked into the crushing threshing bin 2.4, one end of the crankshaft 1.2.2 is provided with an adjusting gear 1.2.4, and the angle between the crankshaft 1.2.2 and the horizontal plane can be adjusted through the external gear 1.2.4 so as to adjust the length of the whole toothed harrow 1.2.3 outside the roller and adjust the feeding quantity.
The crushing and threshing mechanism 2 is fixed on a frame, the crushing and threshing mechanism 2 consists of a crushing and threshing circular frame 2.1, a grid-shaped arc-shaped bottom net 2.3 and a cover cap 2.2, the crushing and threshing circular frame 2.1 is an annular iron frame formed by welding flat irons on the outer surface of a long shaft 2.1.1, a plurality of rows of grass crushing cutters 2.1.3 are welded on the surface 2.1.2 of the annular iron frame, two ends of a circular frame shaft 2.1.1 are arranged on the frame through bearings, and two ends of the circular frame shaft are respectively fixed with a crushing wheel 7.3 and an air suction wheel 7.4; a grid-shaped arc-shaped bottom net 2.3 is arranged below the crushing threshing round frame 2.1, and the grid-shaped arc-shaped bottom net 2.3 is fixed on the frame; the crushing threshing round frame 2.1 is provided with a cover cap 2.2, the cover cap 2.2 is a semicircular shell, the rear part is connected with the frame through a hinge, and the front part is screwed up through a bolt for convenient disassembly and maintenance.
The bottom screen 3 is hung under the frame, and the bottom screen is wholly inclined, and is high on the right and low on the left. The bottom sieve 3 left side top is equipped with convulsions separating mechanism 4, convulsions separating mechanism 4 below intercommunication rectangle suction opening 4.3, suction opening 4.3 opening is towards bottom sieve 3, suction opening 4.3 opening width equals with bottom sieve 3 width, bottom sieve 3 is being connected and is being sieved cam 7.5, bottom sieve cam 7.5 drives bottom sieve 3 shake, make the crushed wheat straw shake clear dirt of thing and pass through from suction opening 4.3 below, by suction opening 4.3 suck the crushed wheat straw thing, wheat grain continues to slide to the left because of gravity is big. The bottom screen 3 is divided into a left part and a right part by taking an exhaust port 4.3 as a boundary, wherein the screen holes of the left part and the right part are different in size, and the screen holes of the right part 3.1 are small and are used for cleaning dust; the left part is 3.2 meshes big and is used for screening wheat grains. The front of the left side of the bottom sieve is fixed with a lifting mechanism 5.1, a bottom sieve groove 3.3 inclining forward is arranged below the left side of the bottom sieve, the tail end of the bottom sieve groove 3.3 is connected with a feeding port 5.1.4 of the lifting mechanism, and wheat grains after screening are guided to enter the lifting mechanism 5.1.
The air draft separating mechanism 4 is fixed on the left side of the frame and is parallel to the crushing and threshing mechanism 2, and the air draft separating mechanism 4 consists of a fan box 4.1, fan blades 4.2.1, a fan blade shaft 4.2, an air draft port 4.3, a feeding port 4.5 and an adjusting port 4.6. The fan box 4.1 is internally provided with fan blades 4.2.1, the fan blades 4.2.1 are fixed on a fan blade shaft 4.2, the fan blade shaft 4.2 is provided with a wind suction wheel 7.4, the adjusting opening 4.6 is a semicircular convex opening which is arranged on the box body and is opposite to the fan blade shaft, the adjusting cover 4.6.1 covers the wind suction wheel, the wind pressure is adjusted through the size of the opening of the cover, the lower part of the adjusting opening 4.6 is communicated with a wind suction opening 4.3, and straw powder is sucked through the wind suction opening 4.3; the rear of the fan box 4.1 is communicated with a feeding port 4.5 through an air duct 4.4, and a grid plate port 4.4.1 is arranged above the corner before the air duct 4.4 is connected with the feeding port 4.5 and is used for relieving wind pressure and removing dust; the vertical shielding plates 4.4.2 with equal width are arranged above the grid plate openings, so that the wind dust flushed out by the grid plate openings 4.4.1 directly flies to the high altitude, and the injury to workers is reduced.
The straw distributing mechanism 6 is fixed on the frame, and the straw distributing mechanism 6 consists of a feeding channel 6.1, a distributing plate 6.2 and left and right distributing barrels 6.3. The feeding channel 6.1 is communicated with the feeding port 4.5, the feeding channel 6.1 is separated by the material separating plate 6.2 and is divided into a left feeding channel and a right feeding channel, the left feeding channel 6.1.1 is communicated with the left material separating barrel 6.3.1, the right feeding channel 6.1.2 is communicated with the right material separating barrel 6.3.2, an exhaust pipe 6.4 is arranged in the material separating barrel 6.3, the exhaust pipe 6.4 is cylindrical, the upper end of the exhaust pipe extends out of the material separating barrel 6.3, and the lower end of the exhaust pipe 6.4 extends to half of the height of the material separating barrel 6.3. The material distributing plate 6.2 is a plate arranged on the material feeding channel, the lower side of the plate is connected with an L-shaped rod 6.2.1, the plate is adjusted by rotating the L-shaped rod 6.2.1, and the plate blocks the left material feeding channel 6.1.1 or the right material feeding channel 6.1.2, so that the alternate feeding of the two material distributing barrels can be realized.
The wheat grain selecting mechanism 5 is fixed at the leftmost side of the frame and consists of a lifting mechanism 5.1, a two-layer screen 5.3, a feeding groove 5.3.3, a blowing channel 5.4, a discharging hole 5.5 and a recovery baffle 5.5.2. The lifting mechanism 5.1 is internally provided with a lifting belt 5.1.1, lifting scoops 5.1.2 and lifting shafts 5.1.3, the lifting scoops 5.1.2 are connected with the lifting belt 5.1.1 in a front-back mode and are evenly and vertically distributed, the lifting shafts 5.1.3 are rotated by driving wheels 7.6, the lifting belt 5.1.1 is driven by the lifting shafts 5.1.3, and the lifting belt 5.1.1 carries the lifting scoops 5.1.2 to scoop wheat to a discharging hole 5.1.3 of the lifting mechanism to fall from above the two-layer screen 5.3. The two-layer screen 5.3 consists of an upper screen and a lower screen, the feeding groove 5.3.3 is parallel to the two screens in equal length is arranged below the two-layer screen, the two-layer screen 5.3 pushes wheat grains to be screened through inclined shaking, the screen holes of the upper screen 5.3.1 are large, larger impurities are reserved, primary concentration is carried out, the screen holes of the lower screen 5.3.2 are small, smaller impurities are reserved, secondary concentration is carried out, and finally full and clean wheat grains fall into the feeding groove 5.3.3. The blowing channel 5.4 is positioned below the terminals of the two layers of screens 5.3 and the feeding groove 5.3.3, the wheat grain baffle 5.5.1 is arranged opposite to the blowing channel 5.4, the wheat grain baffle 5.5.1 is connected with the discharge hole 5.5, the fan 5.4.1 is arranged in the blowing channel 5.4, sundries falling on the horizontal line are all blown out of the machine through blowing, the wheat grain is relatively heavy, and the wheat grain falls into the discharge hole 5.5 by the wheat grain baffle 5.5.1 to finish carefully selecting. The recovery baffle 5.5.2 is positioned at the rearmost end of the wheat grain selecting mechanism 5, the lower part of the recovery baffle is aligned with the bottom screen 3, and the unexpected blown wheat grains and the straw powder which cannot be blown away can be blocked by the recovery baffle 5.5.2 and recovered for selecting again.
The transmission mechanism consists of a driving wheel 7.1, a feeding wheel 7.2, a crushing wheel 7.3, an air pumping wheel 7.4, a two-layer screen cam 7.5, a driving wheel 7.6, a lifting wheel 7.7, a fan wheel 7.8, a bottom screen wheel 7.9, a bottom screen cam 7.10 and a speed reducer 7.11. The driving wheel 7.1 is fixed on the frame, external power is connected with the driving wheel 7.1 through the shaft coupler, the driving wheel 7.1 respectively drives the crushing wheel 7.3, the feeding wheel 7.2 and the bottom screen wheel 7.9 to rotate, the bottom screen wheel 7.9 drives the bottom screen cam 7.10 to rotate through the speed reducer 7.11, and the bottom screen cam 7.10 drives the bottom screen 3 to shake. The crushing wheel 7.3 and the air draft wheel 7.4 are arranged on the same shaft, the air draft wheel 7.4 is connected with the driving wheel 7.6 through a belt, the driving wheel 7.6 and the two-layer screen cam 7.5 are arranged on the same shaft, the driving wheel 7.6 respectively drives the lifting wheel 7.7 and the fan wheel 7.8 to rotate through the belt, the lifting wheel 7.7 drives the lifting mechanism 5.1 to rotate, and the fan wheel 7.8 drives the fan 5.4.1 to rotate.
When in work, the external power drives the whole machine mechanism to operate through the driving wheel 7.1, and the whole machine enters a working state. Wheat is fed from a feeding port 1.1.1 of a feeding hopper 1.1, is raked into a crushing threshing chamber 2.4 through a roller tooth rake 1.2.4, is crushed and threshed in the crushing threshing chamber 2.4, and crushed grains, crushed stalks and other impurities fall into a bottom screen 3 through a grid bottom screen 2.3 to clean dust and gather and pass through an exhaust port 4.3. Straw is sucked by the air suction opening 4.3, reaches the two material distribution boxes 6.3 in turn through the air suction mechanism 4 and is discharged outside the machine for bagging, wheat grains which are subjected to preliminary separation reach the wheat grain selecting mechanism 5 through the lifting mechanism 5.1, are selected through the two layers of screens 5.3 and the air blowing opening 5.4, and finally fall into the discharge opening 5.5 for bagging. Accidentally blown wheat grains and non-blown straw powder can be blocked by the recovery baffle 5.5.2 and recovered for fine selection again.
Claims (8)
1. An air-draft type wheat threshing and separating machine is characterized in that: comprises a frame, a feeding mechanism, a crushing threshing mechanism, a bottom sieve, an air draft separating mechanism, a wheat grain selecting mechanism, a lifting mechanism, a straw separating mechanism and a transmission mechanism, wherein the feeding mechanism is arranged in front of the crushing threshing mechanism, the bottom sieve is arranged at the lower part of the crushing threshing mechanism, the lifting mechanism is arranged at the tail end of the bottom sieve, a feeding port of the lifting mechanism is opposite to the bottom of the tail end of the bottom sieve, a discharging port of the lifting mechanism corresponds to the wheat grain selecting mechanism, the air draft separating mechanism is arranged at the left side of the crushing threshing mechanism, the straw separating mechanism is communicated with the air draft separating mechanism and is arranged at the back, the transmission mechanism is arranged on each transmission shaft at the left side and the right side of the frame, the wheat grain selecting mechanism is fixed at the leftmost side of the frame, the wheat grain screening machine comprises a lifting mechanism, two layers of screens, a feeding groove, a blowing channel, a discharging hole and a recovery baffle, wherein a lifting belt and lifting spoons are arranged inside the lifting mechanism, the lifting spoons are connected with the lifting belt in a front-back mode and are evenly and vertically distributed, the lifting belt is rotated by a transmission mechanism and runs with the lifting spoons, the two layers of screens are composed of an upper layer of screen and a lower layer of screen, the feeding groove which is equal in length and parallel to the two layers of screens is arranged below the two layers of screens, the mesh of the upper layer of screens is large in holes, primary screening is carried out, the mesh of the lower layer of screens is small, the blowing channel is located below the terminal of the two layers of screens and the feeding groove, a wheat grain baffle is arranged opposite to the blowing channel, the wheat grain baffle is connected with the discharging hole, a fan is arranged in the blowing channel, the recovery baffle is located at the rearmost end of the wheat grain screening mechanism, and the bottom screen is aligned below the recovery baffle.
2. The suction type wheat threshing and separating machine as claimed in claim 1, wherein: the feeding mechanism is fixed on the frame and consists of a feeding hopper and a roller arranged in the feeding hopper, the roller is fixed on a roller shaft, the roller shaft is arranged on the frame through a bearing, the roller shaft is a hollow shaft, one end of the roller shaft is fixedly provided with a feeding wheel, a crankshaft is arranged in the roller shaft, the roller shaft is connected with the crankshaft through the bearing, a toothed harrow is arranged on the crankshaft, the toothed harrow extends out of the roller through an elliptical opening on the roller wall, the roller drives the toothed harrow to rotate, the crankshaft is kept motionless, the center line of the roller has a certain distance deviation from the center line of the crankshaft, the distance between the center line of the crankshaft and the elliptical opening of the roller wall changes along with the rotation of the roller, the extending length of the toothed harrow on the upper half circle is short, and the extending length of the toothed harrow on the lower half circle is long.
3. The suction type wheat threshing and separating machine as claimed in claim 2, wherein: one end of the crankshaft is provided with an adjusting gear, and the angle between the crankshaft and the horizontal plane can be adjusted through the external gear so as to adjust the length of the whole toothed harrow outside the roller and adjust the feeding quantity.
4. The suction type wheat threshing and separating machine as claimed in claim 1, wherein: the crushing and threshing mechanism is fixed on the frame and consists of a crushing and threshing circular frame, a grid-shaped arc-shaped bottom net and a cover cap, wherein the crushing and threshing circular frame is an annular iron frame formed by welding flat irons on the outer surface of a long shaft, a plurality of rows of grass crushing cutters are welded on the surface of the annular iron frame, two ends of a circular frame shaft are arranged on the frame through bearings, and crushing wheels and driving wheels are respectively fixed at two ends of the circular frame shaft; a grid-shaped arc-shaped bottom net is arranged below the crushing threshing circular frame and is fixed on the frame; the crushing threshing round frame is provided with a cover, the cover is a semicircular shell, the rear part of the cover is connected with the frame through a hinge, and the front part of the cover is screwed up through a bolt.
5. The suction type wheat threshing and separating machine as claimed in claim 1, wherein: the bottom sieve is arranged at the lower part of the crushing threshing mechanism, is hung under the frame, is integrally inclined, is high on the right, is low on the left side, is provided with an air draft separating mechanism, is communicated with a rectangular air draft opening below the air draft separating mechanism, the air draft opening faces the bottom sieve, the width of the air draft opening is equal to that of the bottom sieve, the bottom sieve is connected with a bottom sieve cam, the bottom sieve cam drives the bottom sieve to shake, the bottom sieve is divided into a left part and a right part by the air draft opening, the sizes of sieve holes of the left part and the right part are different, and the sieve holes of the right part are small; the left part sieve mesh is big, and the left side place ahead of end sieve is fixed with elevating system, and end sieve left side below is equipped with the groove of forward slope, and the groove end is connected with elevating system below, and the wheat grain after the guide screening gets into elevating system.
6. The suction type wheat threshing and separating machine as claimed in claim 1, wherein: the air draft separating mechanism is fixed on the left side of the frame and is parallel to the crushing threshing mechanism, the air draft separating mechanism consists of a fan box, fan blades, a fan blade shaft, an air draft opening, a feeding opening and an adjusting opening, the fan blades are arranged in the fan box and fixed on the fan blade shaft, an air draft wheel is arranged on the fan blade shaft, the adjusting opening is a circular opening which is arranged on the box body and is opposite to the fan blade shaft, an adjusting cover is arranged on the adjusting opening, the air draft opening is communicated below the adjusting opening, the feeding opening is communicated with the rear of the fan box through an air duct, a grid plate opening is arranged above a corner before the air duct is connected with the feeding opening, and an equal-width vertical shielding plate is arranged above the grid plate opening.
7. The suction type wheat threshing and separating machine as claimed in claim 1, wherein: the straw feed divider constructs to be fixed in the frame, straw feed divider comprises pan feeding way, division flitch, left and right sides feed divider bucket, pan feeding way and pay-off mouth intercommunication, pan feeding way is divided into by division flitch and is controlled the pan feeding way, left pan feeding way and left side feed divider bucket intercommunication, right pan feeding way and right side feed divider bucket intercommunication are equipped with the exhaust pipe in the pan feeding bucket, the exhaust pipe is cylindric, the exhaust pipe upper end stretches out outside the feed divider bucket, the exhaust pipe lower extreme extends to the half of feed divider bucket height, division flitch is a plate that sets up in the pan feeding way, the plate is connected with an L shape pole below, the plate is through rotating L shape pole adjustment, the plate blocks left pan feeding way or right pan feeding way.
8. The suction type wheat threshing and separating machine as claimed in claim 1, wherein: the driving mechanism consists of a driving wheel, a crushing wheel, a feeding wheel, an air extracting wheel, a bottom sieve wheel, a driving wheel, a lifting wheel, a vibrating wheel, a fan wheel, a bottom sieve cam, a two-layer sieve cam and a speed reducer, wherein the driving wheel is fixed on the frame, external power is connected with the driving wheel through a shaft coupler, the driving wheel respectively drives the crushing wheel, the feeding wheel and the bottom sieve wheel to rotate, the bottom sieve wheel drives the bottom sieve cam to rotate through the speed reducer, the bottom sieve cam drives the bottom sieve to shake, the crushing wheel and the air extracting wheel are arranged on the same shaft, the air extracting wheel is respectively connected with the driving wheel through a belt, the driving wheel and the two-layer sieve cam are arranged on one shaft, the driving wheel respectively drives the lifting wheel and the fan wheel to rotate through the belt, and the lifting wheel drives the lifting mechanism to operate, and the fan wheel drives the fan to operate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223362998.9U CN219844124U (en) | 2022-12-15 | 2022-12-15 | Air-draft type wheat threshing and distributing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223362998.9U CN219844124U (en) | 2022-12-15 | 2022-12-15 | Air-draft type wheat threshing and distributing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219844124U true CN219844124U (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223362998.9U Active CN219844124U (en) | 2022-12-15 | 2022-12-15 | Air-draft type wheat threshing and distributing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219844124U (en) |
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2022
- 2022-12-15 CN CN202223362998.9U patent/CN219844124U/en active Active
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