CN214545755U - Grain pocket cyclone separation cleaning plant - Google Patents

Abstract

The utility model discloses a cereal nest eye cyclone cleaning device, including cyclone, feeding hopper, big miscellaneous row of miscellaneous mouthful, nest eye separation barrel casing, install nest eye cleaning barrel in the nest eye separation barrel casing, push away material spiral, hold silo, guide plate. The upper part of the cyclone separating cylinder of the cleaning device is cylindrical, the lower part of the cyclone separating cylinder of the cleaning device is conical, the upper end of the cyclone separating cylinder is connected with a gettering pipeline, and a material inlet is tangentially arranged on the side surface of the cyclone separating cylinder and connected with a material bearing groove. The feeding hopper is positioned on one axial side of the pocket separating cylinder and connected with the pocket separating cylinder shell. The housing of the pocket separating cylinder is coaxial with the pocket cleaning cylinder, the pushing screw and the material bearing groove, one end of the housing is connected with the cyclone separating cylinder, and the other end of the housing is a conical housing. The guide plate is positioned on the inner side of the pocket cleaning cylinder. The pocket separating cylinder disclosed by the invention can effectively separate stalks from materials by primary cleaning, and sends grains and light impurities into the material bearing groove, and feeds the grains and the light impurities into the cyclone separating cylinder by the pushing screw for secondary cleaning, so that the cleaning rate is ensured, and the loss rate is effectively reduced.

Description

Grain pocket cyclone separation cleaning plant

Technical Field

The utility model relates to a cleaning system of grain harvester specifically is a grain nest eye whirlwind separation cleaning plant, belongs to the agricultural machine field.

Background

The cleaning plant is an important component of the combine harvester, and the performance of the cleaning plant has a decisive influence on the operation effect of the combine harvester. Hilly and mountain areas account for about 80% of the territorial area of China, and are important food production bases in China. However, hilly and mountainous regions have the characteristics of small and irregular land blocks, large height difference between fields and the like, so that large and medium-sized grain combine harvesters and the traditional conventional 'fan-vibrating screen' type cleaning mode thereof are not suitable for mechanized harvesting operation in the regions. On the other hand, a cleaning mode of combining pneumatic power and a vibrating screen is adopted, so that a large amount of dust and light impurities are directly discharged into the air to be discharged, dust raising is easily caused, environment pollution is caused, the harvesting operation environment is poor, and meanwhile, grains are easily blown out by airflow or are carried in the light impurities to generate loss, or the grains are often carried in the light impurities to generate loss.

The cyclone separating and cleaning system of the existing grain harvesting machine is mainly composed of a winnower, a conveying pipeline, a cyclone separating cylinder, a gettering fan and a gettering pipeline. During cleaning operation, materials to be cleaned (mixture of grains, chaffs, stalks and the like) are thrown into the cyclone separation barrel at high speed along the tangential direction of the inner wall of the cyclone separation barrel through the conveying pipeline of the winnower, and an outer vortex of the materials is formed under the action of an airflow field of the impurity suction fan. Under the combined action of inertia, gravity and airflow, the grains with high specific gravity move to the lower end grain outlet along a spiral track on the inner wall of the separating cylinder, while the impurities with low specific gravity, such as gluokang, short stalks and the like are gathered to the center in the cyclone separating cylinder, finally, the internal vortex of the impurities is formed under the suction action of the impurity suction fan, and the impurities are discharged out of the machine from the upper end of the separating cylinder from bottom to top, so that the separation of the grains from the impurities, such as glume chaff and the like, is realized. The cyclone separating cylinder is mainly used for cleaning by utilizing the density difference of grain seeds and stalks, the maturity of the seeds, the moisture content of the stalks and the like can influence the density of materials, and the cleaning operation effect is difficult to control; meanwhile, the winnower is used for conveying materials, so that the seed breakage rate is increased easily, and the cleaning operation effect is influenced.

Disclosure of Invention

The utility model discloses cleaning loss rate and seed grain percentage of damage to current grain harvester whirlwind separation cleaning system existence are high, clean the in-process and easily cause the seed grain broken, and the separation is difficult to clean to long stalk, and poor problem such as operation condition effect is difficult to be controlled provides a reduce cleaning loss rate and seed grain percentage of damage, improves cleaning system of rate.

The utility model provides a novel cereal nest hole cyclone separation cleaning plant adopts following technical scheme:

a grain pocket cyclone separating and cleaning device comprises a cyclone separating cylinder, a feeding hopper, a large impurity discharging port and a pocket separating cylinder shell, wherein the pocket separating cylinder shell is internally provided with a pocket separating cylinder, a pushing screw, a material receiving groove and a guide plate; one end of the housing of the pocket separation cylinder is a conical housing, the opening of the conical housing is a feeding end, the other end of the housing is a cylindrical housing, the cylindrical housing is connected with the cyclone separation cylinder, and the lower end of the connected part is provided with a impurity removing mechanism; a feeding hopper, a pocket separating cylinder, a pushing spiral, a material receiving groove and a guide plate are arranged in the pocket separating cylinder shell; the feeding opening of the feeding hopper is positioned outside the housing of the pocket separation cylinder, and the discharge opening is positioned in front of and below the feeding opening of the pocket separation cylinder; a large impurity discharging port for discharging stalks and large impurities is arranged on the shell of the pocket separating cylinder at the rear lower part of the other end of the pocket separating cylinder; the method is characterized in that: the nest eye separating cylinder is a cylinder body with openings at two ends, a material receiving groove is arranged at the axial middle part in the nest eye separating cylinder, after the threshed material enters the nest eye separating cylinder, the seed and the light impurity enter the nest eye cleaning hole in the rotating process through the rotation of the nest eye separating cylinder, then the seed and the light impurity enter the material receiving groove along with the rotation, a material pushing spiral and a material pushing spiral shaft are arranged in the material receiving groove, the rotation of the material pushing spiral shaft is driven through the material pushing spiral shaft, the seed and the light impurity are sent into the cyclone separating cylinder, the stem and the large impurity which are not sent into the material receiving groove move to the tail part of the nest eye separating cylinder along with the rotation of the nest eye separating cylinder under the action of a guide plate, a large impurity discharging opening is arranged on the shell body of the nest eye separating cylinder below the tail part of the nest eye separating cylinder, the stem and the large impurity are discharged from the large impurity discharging opening, the light impurity is sucked out by the cyclone separating cylinder, the cleaned seeds are discharged from a grain outlet of the cyclone separating cylinder.

Furthermore, the inner wall of the pocket separating cylinder is provided with pocket cleaning holes and spiral guide plates, and the pocket cleaning holes and the guide plates are distributed along the same spiral line.

Furthermore, the shape of pocket cleaning hole is the rectangular hole of smooth transition type, and one end is the curved surface of smooth transition, and one end is the terminal surface of taking the fillet transition.

Further, the housing of the pocket separating cylinder is coaxial with the pocket separating cylinder, the material receiving groove and the material pushing spiral; the lengths of the material receiving groove and the material pushing spiral are both longer than the length of the pocket separating cylinder.

Furthermore, ball chains which are axially and equidistantly distributed and hung are arranged inside the upper end of the socket separation cylinder shell, and small balls of the ball chains are made of elastic rubber.

Furthermore, one end of the material bearing groove is connected with a material inlet of the cyclone separation cylinder, and spokes are arranged at the material inlet of the pocket separation cylinder at the other end of the material bearing groove to connect and fix the material pushing screw shaft and the pocket separation cylinder together.

Furthermore, the pushing spiral is positioned in the material bearing groove, the material bearing groove at the feeding end is longer than the pushing spiral, and the pushing spiral is longer than the material bearing groove at the intersection of the feeding end and the cyclone separating cylinder.

Furthermore, the upper end of the cyclone separating cylinder is connected with a gettering pipeline, and a feeding port of the cyclone separating cylinder is positioned on the side surface of the upper end of the cyclone separating cylinder and is tangent to the side surface of the cyclone separating cylinder.

Furthermore, the upper end of the impurity suction pipeline is connected with an impurity suction fan, and the impurity suction air quantity can be controlled by adjusting the rotating speed of the fan; one end of the pushing screw shaft is connected with a driving motor, the driving motor drives the pushing screw to rotate to push the materials to move, and the pushing screw and the socket separating cylinder are connected through spokes to rotate at the same angular speed.

The beneficial effects of the utility model reside in that: the utility model discloses a nest eye cylinder brings the seed grain in the miscellaneous surplus of feeding cylinder and the little miscellaneous surplus of light into and holds the material inslot, at the in-process of cleaning, the miscellaneous surplus along with the rotation of cylinder that does not get into and hold the silo, move towards the cylinder afterbody under the effect of guide plate, finally arrange miscellaneous mouthful by the big miscellaneous of afterbody and discharge, hold the material in the silo through pushing away in the material spiral feeding cyclone, nest eye cylinder adopts nest eye cleaning hole can effectively clear away miscellaneous surplus such as stem stalk, the pressure of cleaning of cyclone has been alleviateed, the clean rate of seed grain cleaning has been guaranteed. The utility model discloses simple structure cleans effectually, and the operation of sealing has effectively improved and has cleaned the operation environment.

Drawings

Fig. 1 is a schematic structural view of the grain pocket cyclone separating and cleaning device of the utility model.

Fig. 2 is a left side view of the present invention.

FIG. 3 is a schematic sectional view of the pocket cleaning holes of the utility model.

Detailed Description

The system of the present invention will be further explained with reference to the accompanying drawings.

The utility model discloses a grain pocket cyclone separating and cleaning device, which comprises a cyclone separating cylinder 5, a feeding hopper 13, a large impurity discharging port 7, a grain outlet 52 and a pocket separating cylinder shell 1, wherein the pocket separating cylinder shell 1 is internally provided with a pocket separating cylinder 3, a pushing spiral 9, a material bearing groove 8 and a guide plate 4; wherein, one end of the housing 1 of the cell separating cylinder is a conical housing, the opening of the conical housing is a feeding end to ensure that materials are fed into the cell separating cylinder 3, the other end of the housing is a cylindrical housing, the cylindrical housing is connected with the cyclone separating cylinder 5, and the lower end of the connected part is provided with a impurity removing mechanism; a feeding hopper 13, a pocket separation cylinder 3, a pushing spiral 9, a material bearing groove 8 and a guide plate 4 are arranged in the pocket separation cylinder shell; wherein, the feeding mouth of the feeding hopper 13 is positioned outside the housing 1 of the pocket separating cylinder, the discharging mouth is positioned in front of and below the feeding mouth of the pocket separating cylinder 3, and the housing of the pocket separating cylinder is provided with a large impurity discharging mouth 7 for discharging stalks and large impurities at the rear of and below the other end of the pocket separating cylinder; wherein, the pocket separating cylinder 3 is a cylinder body with two open ends, a material receiving groove 8 is arranged at the axial middle part inside the pocket separating cylinder 3, the material receiving groove 8 is a semi-cylindrical groove body with an open upper end, after the threshed material enters the pocket separating cylinder 3, the grain and light impurity enter a pocket cleaning hole 14 in the rotating process through the rotation of the pocket separating cylinder 3 and rise to a certain height along with the rotation of the pocket separating cylinder 3, the threshed material falls into the material receiving groove 8 due to gravity, a rotating material pushing screw 9 and a material pushing screw shaft 11 are arranged in the material receiving groove 8, the material pushing screw shaft 11 drives the material pushing screw 9 to rotate, the grain and light impurity are sent into the cyclone separating cylinder 5, under the action of inertia, gravity and air force generated by an impurity absorbing fan, the grain with larger specific gravity moves to a lower grain outlet 52 along a spiral track on the inner wall of the cyclone separating cylinder 5, finally discharged from a grain outlet 52 of the cyclone cylinder 5. Light impurities such as glukang, short stalks and the like with smaller specific gravity are gathered towards the center in the cyclone separation cylinder 5, and finally form an internal vortex of the impurities under the action of the suction force of the impurity suction fan 6, and the impurities are discharged out of the machine from the upper end of the cyclone separation cylinder 5 from bottom to top through an impurity suction pipeline 51, so that the separation of grains, glumes and light impurities is realized. Stalks and large impurities which are not sent into the material bearing groove 8 slide to the tail part of the pocket separating cylinder 3 along the inner wall of the cylinder in a spiral track along the rotation of the pocket separating cylinder 3 under the action of the guide plate 4 to be discharged out of the pocket separating cylinder 3, and then are discharged from the large impurity discharge port 7 at the tail part of the pocket separating cylinder shell 1.

The inner wall of the pocket separating cylinder 3 is provided with pocket cleaning holes 14 and spiral guide plates 4, and the pocket cleaning holes 14 and the guide plates 4 are distributed along the same spiral line.

The shape of the pocket cleaning holes 14 is a smooth transition type rectangular hole, one end of each pocket cleaning hole is a smooth transition curved surface, so that grains can smoothly slide into the cleaning holes 14, and the other end of each pocket cleaning hole is an end surface with a round corner transition, so that the grains in the cleaning holes 14 can rotate to rise to a certain height along with the pocket separating cylinders 3 and then fall down.

The housing 1 of the pocket separating cylinder is coaxial with the pocket separating cylinder 3, the material receiving groove 8 and the pushing spiral 9; the lengths of the material receiving groove 8 and the material pushing spiral 9 are longer than that of the pocket separating cylinder 3, wherein the material pushing spiral 9 extends into the cyclone separating cylinder 5, and the materials are guaranteed to completely enter the cyclone separating cylinder 5.

The inside ball chain 2 that hangs along the equal interval distribution of axial that is equipped with of 1 upper end of pocket separator casing, the bobble material of ball chain 2 is for having elastic rubber, when 3 rotatory works of pocket separator, drives the bobble swing and can shake off the miscellaneous residue that does not drop in the pocket cleaning hole 14 in attaching to pocket separator 3.

One end of the material receiving groove 8 is connected with a material inlet 53 of the cyclone separating cylinder 5, spokes 10 are arranged at the material inlet of the pocket separating cylinder 3 at the other end to connect and fix the material pushing screw shaft 11 with the pocket separating cylinder 3, and when the motor 12 drives the material pushing screw shaft 11 to rotate, the material pushing screw 9 and the pocket separating cylinder 3 rotate together with the material pushing screw shaft 11.

The pushing spiral 9 is positioned in the material bearing groove 8, the feeding end material bearing groove 8 is longer than the pushing spiral 9 and is intersected with the cyclone separation cylinder 5, and the pushing spiral 9 is longer than the material bearing groove, so that materials can be fed into the cyclone separation cylinder 5.

The upper end of the cyclone separating cylinder 5 is connected with a gettering pipeline 51, and a feeding port 53 of the cyclone separating cylinder 5 is positioned on the side surface of the upper end of the cyclone separating cylinder 5 and is tangent to the side surface of the cyclone separating cylinder 5.

The upper end of the impurity absorbing pipeline 51 is connected with the impurity absorbing fan 6, and the impurity absorbing air quantity can be controlled by adjusting the rotating speed of the impurity absorbing fan 6; one end of the pushing screw shaft 11 is connected with a driving motor 12, the driving motor 12 drives the pushing screw 9 to rotate to push the materials to move, and the pushing screw 9 is connected with the pocket separating cylinder 3 through spokes 10 to rotate at the same angular speed.

Claims (9)

1. A grain pocket cyclone separating and cleaning device comprises a cyclone separating cylinder, a feeding hopper, a large impurity discharging port and a pocket separating cylinder shell, wherein the pocket separating cylinder shell is internally provided with a pocket separating cylinder, a pushing screw, a material receiving groove and a guide plate; one end of the housing of the pocket separation cylinder is a conical housing, the opening of the conical housing is a feeding end, the other end of the housing is a cylindrical housing, the cylindrical housing is connected with the cyclone separation cylinder, and the lower end of the connected part is provided with a impurity removing mechanism; a feeding hopper, a pocket separating cylinder, a pushing spiral, a material receiving groove and a guide plate are arranged in the pocket separating cylinder shell; the feeding opening of the feeding hopper is positioned outside the housing of the pocket separation cylinder, and the discharge opening is positioned in front of and below the feeding opening of the pocket separation cylinder; a large impurity discharging port for discharging stalks and large impurities is arranged on the shell of the pocket separating cylinder at the rear lower part of the other end of the pocket separating cylinder; the method is characterized in that: the nest eye separating cylinder is a cylinder body with openings at two ends, a material receiving groove is arranged at the axial middle part in the nest eye separating cylinder, after the threshed material enters the nest eye separating cylinder, the seed and the light impurity enter the nest eye cleaning hole in the rotating process through the rotation of the nest eye separating cylinder, then the seed and the light impurity enter the material receiving groove along with the rotation, a material pushing spiral and a material pushing spiral shaft are arranged in the material receiving groove, the rotation of the material pushing spiral shaft is driven through the material pushing spiral shaft, the seed and the light impurity are sent into the cyclone separating cylinder, the stem and the large impurity which are not sent into the material receiving groove move to the tail part of the nest eye separating cylinder along with the rotation of the nest eye separating cylinder under the action of a guide plate, a large impurity discharging opening is arranged on the shell body of the nest eye separating cylinder below the tail part of the nest eye separating cylinder, the stem and the large impurity are discharged from the large impurity discharging opening, the light impurity is sucked out by the cyclone separating cylinder, the cleaned seeds are discharged from a grain outlet of the cyclone separating cylinder.

2. A grain pocket cyclone separating and cleaning device according to claim 1, characterized in that: the inner wall of the pocket separating cylinder is provided with pocket cleaning holes and spiral guide plates, and the pocket cleaning holes and the guide plates are distributed along the same spiral line.

3. A grain pocket cyclone separating and cleaning device according to claim 2, characterized in that: the shape of the pocket cleaning hole is a smooth transition type rectangular hole, one end of the pocket cleaning hole is a smooth transition curved surface, and the other end of the pocket cleaning hole is an end surface with a fillet transition.

4. A grain pocket cyclone separating and cleaning device according to claim 1, characterized in that: the housing of the pocket separating cylinder is coaxial with the pocket separating cylinder, the material receiving groove and the material pushing spiral; the lengths of the material receiving groove and the material pushing spiral are both longer than the length of the pocket separating cylinder.

5. A grain pocket cyclone separating and cleaning device according to claim 1, characterized in that: ball chains which are axially and equidistantly distributed and hung are arranged inside the upper end of the socket separation cylinder shell, and small balls of the ball chains are made of elastic rubber.

6. A grain pocket cyclone separating and cleaning device according to claim 1, characterized in that: one end of the material bearing groove is connected with a material inlet of the cyclone separating cylinder, and spokes are arranged at the material inlet of the pocket separating cylinder at the other end of the material bearing groove to connect and fix the material pushing screw shaft and the pocket separating cylinder together.

7. A grain pocket cyclone separating and cleaning device according to claim 1, characterized in that: the material pushing spiral is positioned in the material bearing groove, the material feeding end material bearing groove is longer than the material pushing spiral, the material pushing spiral is longer than the material bearing groove at the intersection of the material pushing spiral and the cyclone separating cylinder.

8. A grain pocket cyclone separating and cleaning device according to claim 1, characterized in that: the upper end of the cyclone separating cylinder is connected with a gettering pipeline, and a feeding port of the cyclone separating cylinder is positioned on the side surface of the upper end of the cyclone separating cylinder and is tangent to the side surface of the cyclone separating cylinder.

9. A grain pocket cyclone separating and cleaning device according to claim 1, characterized in that: the upper end of the impurity suction pipeline is connected with an impurity suction fan, and the impurity suction air quantity can be controlled by adjusting the rotating speed of the fan; one end of the pushing screw shaft is connected with a driving motor, the driving motor drives the pushing screw to rotate to push the materials to move, and the pushing screw and the socket separating cylinder are connected through spokes to rotate at the same angular speed.

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