JPH08140462A - Threshed grain-lifting apparatus of thresher - Google Patents

Abstract

PURPOSE: To provide a threshed grains lifting apparatus of a thresher, capable of enhancing grading accuracy and improved in threshing efficiency without making the threshed grains lifting apparatus large-size by providing plural treating teeth, etc., for carrying out single grain treatment of grains in a threshed grains lifting step in a grain-lifting spiral. CONSTITUTION: This threshed grains-lifting apparatus 17 of a thresher is formed by providing plural treating tooth plate materials 25 for treating grains in lifting and carrying step in threshed grain lifting spiral 21 in a threshed grain lifting cylinder 20 and forming plural discharge holes for discharging a contaminant out of cylinder in at least part of the threshed grain lifting cylinder 20. Furthermore, the treating tooth plate materials 25 are preferably vertically installed toward radiating direction on the carrying face side of the threshed grains-lifting spiral 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain lifting device for a thresher provided in a combine harvester or a harvester.

[0002]

BACKGROUND OF THE INVENTION Generally,
In this seed threshing machine, the grains threshed in the handling room are allowed to leak from the net, sorted and sorted into the first and second crops, and the first crop is grained by the lifting machine. While lifting and transporting to the grain tank, the second product is reduced to the handling room and the sorting room with the second reducing grain lifting device, but if the ear cuttings and branch shoots are mixed in the first product, Since the panicle cuttings and the branch shoots are lifted and conveyed together with the single-grained kernels, the final sorting accuracy is lowered. Therefore, it is possible to make the mesh of the receiving net finer to reduce the ear cuttings and branch stem particles in advance, or to improve the sorting accuracy of the first product to process the ear cutting grains and branch shoot grains by second reduction. Although proposed, in this case, since the residual amount in the handling chamber and the storage amount in the second storage unit increase, threshing treatment efficiency and sorting treatment efficiency are not allowed to decline, and clogging easily occurs. was there.

[0003]

SUMMARY OF THE INVENTION The present invention was conceived with the object of providing a lifting device for a thresher capable of eliminating these drawbacks in view of the above-mentioned circumstances. In a thresher that lifts and conveys threshered grains using a hoisting device configured by incorporating a hoisting helix in a barrel, the hoisting helix is made into a single grain of the hoisting and conveying process. While providing a plurality of processing teeth for processing, a plurality of discharge holes for discharging contaminants to the outside of the cylinder are formed in at least a part of the fried food cylinder. And the present invention is
With this configuration, it is possible to improve the final sorting accuracy by making the grains into single grains during the lifting and conveying process.

[0004]

Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, 1 is a combine, and the combine 1 comprises a pretreatment unit 2 for cutting stems, a threshing selection unit 3 for threshing grains from the cut stems and selecting the threshed grains, It is composed of a post-processing section 4 for discharging threshed culm, a grain tank 5 for storing selected grains, a crawler type running section 6 and the like.

Further, the threshing selection section 3 handles the stem culm in the handling room 7
A feed chain 8 for transporting along the line, a handling barrel 9 for threshing the transported stems, a catching net 10 for leaking down the processed material, an oscillating sorting body 11 for swinging and sorting the leaked grains, a sorting wind Karato fan 12 that blows air and dust exhaust fan 1 that forcibly discharges straw dust, etc.
3, the first storage unit 14 for storing the selected first product, the second storage unit 15 for storing the second product such as the ear cuttings which has not been selected as the first product, and the first storage unit 14 First helix 1 which conveys the first thing horizontally to one end of the first storage section 14
6, a lifting device 17 for hoisting and carrying the first thing laterally conveyed to one end to the grain tank 5, and a second object accommodated in the second accommodation part 15 to one end of the second accommodation part 15 It is provided with the second spiral 18 for conveying, the second reducing grain raising device 19 for returning the second thing laterally conveyed to one end to the swing sorting body 11, etc., but the configurations up to this point are all conventional.

The fried grain device 17 is constructed by incorporating a fried grain helix 21 to be described later in a cylindrical fried grain barrel 20 which is erected at one end of the first storage portion 14. Then, the fried helix 21 is rotationally driven together with the first helix 16 which is interlockingly connected via the bevel gear mechanism 22 to lift and convey the first product to the upper end of the fried food cylinder 20, and the fried helix of the jumping plate 24. It is designed to be discharged into the grain tank 5 by the jumping action.

The fried helix 21 is formed by integrally welding a spiral strip plate member 21b on the outer periphery of a rotary shaft 21a which is oriented in the vertical direction.
A plurality of treated tooth plate materials 25 facing in the radial direction are rivet-fixed in an upright state on the transport surface (upper surface) of the processed tooth plate materials 25 at predetermined intervals in the spiral direction. In other words, the treated tooth plate material 25 directly acts on the first product in the lifting and transporting process to make the cuttings and branching grains in the first product as single particles as possible. In order to push the first product outward with the rotation of the fried helix 21 and bring it into contact with the inner peripheral surface of the fried food barrel 20, the friction generated based on the contact is used to make the cuttings and branches. It has become possible to further promote the singularization of infarcts.

The upper side of the treated tooth plate member 25 is inclined so that the protruding height B at the outer end is smaller than the protruding height A at the inner end. That is, since the first product in the carrying process is positively pushed outward with the rotational driving of the fried helix 21 and strongly contacted with the inner peripheral surface of the fried food barrel 20, the singulation is performed based on this action. The processing capacity can be further increased.

On the other hand, an opening 20a is formed in a part of the fried food container 20 so that the removal work at the time of clogging can be performed.
0a is always covered with a plate material that can be opened and closed. This plate material is formed of a perforated plate 26 having a large number of discharge holes 26a. That is, it is possible to discharge the spikes and branch stems separated from the grain through the discharge holes 26a under the action of the treated tooth plate material 25, but the best thing is the innermost surface of the perforated plate 26 having a large frictional resistance. By bringing them into contact with each other, it is possible to enhance the singulation treatment capacity. The diameter of the discharge hole 26a is set so that the discharge of ears and branch shoots is allowed, but the discharge of grains is restricted. Also, in the figure, 2
6b is a hinge that supports the perforated plate 26 so that it can be opened and closed, and 26c is a hook lever that locks the perforated plate 26 in the closed position.

Further, 27 is a cover that covers the outer peripheral surface of the fried grain cylinder 20 at a predetermined interval, and the cover 27 receives the spikes and branch shoots discharged from the discharge holes 26a and receives them. The stopped panicles and branch shoots are discharged to the outside of the machine through an opening under the cover.

In the embodiment of the present invention constructed as described above, the first article stored in the first storage section 14 is laterally transported by the first spiral 23 to the one end side of the first storage section 14, The fried grain device 17 which is erected at one end of the first storage section 14 lifts and conveys it to the grain tank 5, but on the conveying surface of the fried grain helix 21 that constitutes the fried grain device 17. ,
Since the plurality of treated tooth plate materials 25 are erected in the radial direction, the cuttings and branching grains contained in the first product are subjected to the action of the treated tooth plate materials 25 in the lifting and conveying process to be made into single grains. Further, the spikes and branch stems separated from the grain due to further singulation are discharged outside the cylinder from the discharge hole 26a of the perforated plate 26 provided in a part of the fried cylinder 20. Therefore, it is not necessary to make the mesh size of the receiving net 10 fine or to improve the sorting accuracy of the first product in reducing the ratio of the cuttings and branch shoots contained in the first product. It is possible to avoid inconveniences such as a decrease in efficiency and selection processing efficiency.

In addition, the fried helix 21 and the treated tooth plate material 25
On the other hand, since it can be carried out only by forming the discharge hole 26a in a part of the fried food barrel 20, it is convenient for carrying it out, and it is also possible to avoid enlarging the fried food device 17.

Furthermore, since the upper side of the treated tooth plate material 25 is inclined so that the protruding height B at the outer end becomes smaller than the protruding height A at the inner end, the best product in the conveying process is The spiral 21 can be positively pushed outward along with the rotational drive, and as a result, the first object can be brought into strong contact with the inner peripheral surface of the fried cylinder 20 to further enhance the singulation processing capability. it can.

Further, since the perforated plate 26 of this embodiment also functions as a lid for the opening 20a opened in the fried food container 17 for removing work at the time of clogging, the structure is based on the dual use of members. Can also contribute to simplification.

The present invention is not limited to the above-mentioned embodiment, but can be applied to, for example, the No. 2 reduction grain lifting device 19, and in this case, Since the single particles are formed in the conveying process of the second reduction, it is possible to reduce the processing load on the sorting section or the handling chamber where the second material is reduced and improve the processing efficiency.

[0016]

In summary, since the present invention is configured as described above, a threshing device configured by incorporating a fried helix in a fried cylinder is used to lift and convey threshered grains. However, the fried helix is provided with a plurality of processing teeth for single-grain processing of the grains in the lifting and conveying process, while at least a part of the fried cylinder is discharged with contaminants outside the cylinder. Due to the formation of multiple discharge holes, even if the cuttings and branching kernels are mixed in the grains to be lifted and conveyed, the cuttings and branching kernels are subjected to the action of the treated teeth to form a single grain. At the same time, the panicles and twigs separated from the grain are discharged from the discharge holes formed in the fried cylinder. In other words, since the processing function is added to the fried grain equipment, the mesh of the receiving net is made finer to reduce the panicles and branch shoots in advance, and the sorting accuracy is improved by increasing the sorting accuracy of the first products. It is possible to improve the sorting accuracy without inconvenience such as reducing threshing efficiency or sorting efficiency, as in the case of the second reduction of grain or branch grain, and it is also possible to enlarge the frying device. Since it does not exist, there is an advantage that it can be easily implemented.

[Brief description of drawings]

FIG. 1 is a side view of a combine.

FIG. 2 is a front view of the inside of a threshing selection unit.

FIG. 3 is a horizontal cross-sectional view of the grain lifting device.

FIG. 4 is a front view of a fried helix.

[Explanation of symbols]

 1 Combine 3 Threshing Sorting Section 5 Grain Tank 17 Lifting Machine 20 Lifting Cylinder 21 Lifting Rasen 25 Treated Dental Plate Material 26 Perforated Plate 26a Discharge Hole

Claims (2)

[Claims] 1. A threshing machine for hoisting and transporting threshered grains using a hoisting device configured by internally hoisting a helix in a hoisting barrel. While providing a plurality of processing teeth for single-grain processing of grains, at least a part of the fried cylinder has a plurality of discharge holes for discharging contaminants to the outside of the cylinder. Grain equipment. 2. The fried grain apparatus for a threshing machine, wherein the treated tooth of claim 1 is a plate that is erected in a radial direction on the conveying surface side of the fried helix.