JPH11262318A - Combine threshing equipment - Google Patents

Abstract

(57) [Summary] [PROBLEMS] Combine threshing apparatus for threshing grain at ear tip with a large number of toothed teeth installed in a handling drum while holding and transporting the root of a harvested grain culm with a feed chain In the above, the flow of thresh in the handling room and the discharge from the handling room are smoothed. SOLUTION: The handling cylinder is formed in a substantially truncated cone shape having a small diameter on the upstream side of the harvested grain culm transport and a large diameter on the downstream side, and a shaft core of the same handling cylinder is provided on the upstream side of the harvested grain culm transport. The lower position and the lower side are pivotally supported in an inclined position with the high position.
It is arranged substantially parallel to the crimp net that forms the inner bottom surface of the handling room that houses the handling cylinder.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a combine threshing apparatus.

[0002]

2. Description of the Related Art Conventionally, a combine threshing apparatus has been known in which a root portion of a harvested grain culm is gripped by a feed chain and transported.
The grains at the tip are threshed with a large number of teeth that are planted in the handling cylinder, and the handling cylinder has a large number of teeth treated on the outer peripheral surface of a substantially cylindrical shape.

[0003] Among the threshed threshed by the above-mentioned handling cylinder,
There is a combine threshing device provided with a processing cylinder downstream of the handling cylinder in order to thresh branch spikes remaining on a crimp net stretched on the bottom of the handling room.

[0004]

However, since the handling cylinder has a substantially cylindrical shape, the amount of threshing gradually increases from the upstream side to the downstream side. Since the gap with the peripheral surface is constant from the upstream side to the downstream side, there is a problem that the flow and discharge of the thresh are not performed smoothly.

In a threshing apparatus having a processing drum provided downstream of the handling drum, the processing drum is supported with its axis being horizontal. There is a problem that the separation between the waste and the straw waste is insufficient, and the burden on the sorting unit increases.

[0006]

Therefore, according to the present invention, while grasping and transporting the root portion of the harvested grain culm with a feed chain, the grains at the tip of the stalk are treated with a large number of toothed teeth planted in a handling cylinder. In the threshing device of the combine for threshing, the handling cylinder is formed in a substantially truncated cone shape with a small diameter on the upstream side of the harvested grain culm transport and a large diameter on the downstream side of the harvested grain culm transport, and the axis of the handling cylinder is transported by the harvested grain culm transport. The lower side of the outer peripheral surface of the handling cylinder is substantially parallel to the crimp net forming the inner bottom surface of the handling chamber accommodating the same handling cylinder. It is an object of the present invention to provide a combine threshing apparatus characterized by being arranged.

[0007] The present invention also has the following features.

[0008] A large number of teeth are implanted on the outer peripheral surface of the handling cylinder at right angles to the axis of the handling cylinder.

[0009] In a combine threshing apparatus in which the grain base of the spike portion is threshed by a large number of toothed teeth arranged in a handling drum while holding and transporting the root portion of the harvested grain culm with a feed chain, the upstream of the feed chain is provided. The side is positioned lower than the axis of the handling cylinder, and the downstream side is positioned higher than the coaxial core.

In a combine threshing apparatus in which a processing cylinder for re-threshing thresh is disposed downstream of the handling cylinder, the axis of the processing cylinder is set at a low position on the upstream side of the threshing material transport and on a downstream side. That it was pivoted to a high position.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention is a method in which a large number of teeth are implanted on the outer peripheral surface at right angles to the axis of the cylinder. Is formed in a substantially truncated conical shape with a large diameter, and the axis of the handling cylinder is pivotally supported in an inclined state with the upstream side of the cutting grain culm transport at a low position and the downstream side at a high position, and the outer periphery of the handling cylinder The lower part of the surface and the crimp net constituting the inner bottom surface of the handling room are made substantially parallel, and the sectional area of the handling room gradually increases from the upstream side to the downstream side.
Discharge is facilitated.

Also, the feed chain is installed with the upstream side at a position lower than the axis of the handling cylinder and the downstream side at a position higher than the coaxial core, so that the handling depth is initially shallow and gradually deeper.
The harvested culm is taken into the interior of the handling room and the flow of the cereal culm is improved, and the culm is not left untreated.

Further, the processing cylinder for threshing the threshing material is pivotally supported in an inclined state in which the upstream side is at a low position and the downstream side is at a high position, and the space below the processing cylinder is widened toward the downstream side. In this way, the sorting style from Karamino is improved, and the separation of grain and straw waste is improved.

[0014]

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a combine B provided with a threshing apparatus A according to the present invention. In the combine B, a frame-like body frame 2 is disposed substantially horizontally above a crawler type traveling unit 1. And a cabin 3 above the body frame 2,
A vehicle body C equipped with a threshing device A, a swing sorting unit 4, a motor unit 5, a Glen tank 6, a straw processing unit 7, and the like is mounted, and a reaping unit 8 is connected to the front of the vehicle body C in a vertically movable manner. I have.

The power from the prime mover unit 5 is transmitted to the traveling unit 1 via the transmission case 9 to travel through the field, and the culm is cut by the cutting blade device 10 disposed below the cutting unit 8 to cut the culm. The taken culm is conveyed to the threshing device A by the cereal culm conveying device 11, threshed by the threshing device A, and the grains are sorted by the rocking sorting unit 4, and the sorted grain is transferred to the Glen tank 6. The waste after threshing and the dust from the oscillating sorting unit 4 are temporarily discharged to the outside via the straw processing unit 7. In the drawing, reference numeral 12 denotes a discharge auger for transferring the grain temporarily stored in the Glen tank 6 to a truck or the like.

The threshing apparatus A is composed of a handling cylinder 20 and a handling room 21 in which the handling cylinder 20 is housed.

As shown in FIGS. 1 to 3, the handling cylinder 20 has a small diameter on the front side, that is, the upstream side of the transport of the harvested grain culm, and has a large diameter on the rear side, ie, the downstream side of the transport of the harvested grain culm. It is formed in a substantially truncated conical shape, and pivots the shaft core 23 at an angle θ in a forward-lower-rear-high direction so that the lower portion 22 of the outer peripheral surface of the handling cylinder 20 is substantially horizontal.

On the outer peripheral surface of the handling cylinder 20, a large number of teeth 24 are planted. The handling teeth 24 are parallel to the axis 23 on the outer peripheral surface of the handling cylinder 20, as shown in FIG. A plurality of cylindrical surfaces 25 are formed in a step shape,
A large number of teeth 24 are implanted at right angles to the cylindrical surface 25, and each tooth 24 is orthogonal to the axis 23. That is, the base of each tooth 24 is inserted into the cylindrical surface 25 parallel to the axis 23 at a right angle, and a flange 26 formed on the base and a nut 27 screwed to the base of the tooth 24 are formed.
To fix the tooth handling 24 to the outer peripheral surface of the handling cylinder 20.

Since the teeth 24 are perpendicular to the axis 23, the trajectory of the cut grain and the movement of the teeth 24 are parallel to each other, thereby preventing the cutting of the stem and increasing the threshing. In addition, since a plurality of ring-shaped cylindrical surfaces 25 are formed on the outer surface of the handling cylinder 20, the strength and rigidity of the handling cylinder 20 can be increased by the rib effect.

Below the handling cylinder 20, a crimping net 28 constituting the inner bottom surface of the handling chamber 21 is stretched substantially horizontally, so that the outer peripheral surface of the handling cylinder 20 is , Numerous teeth 24
The crimping net 28 is arranged substantially parallel to the line connecting the tips of.

As described above, since the handling cylinder 20 has a substantially frusto-conical shape with a large diameter on the rear side, even if the distance between the outer peripheral surface of the handling cylinder 20 and the crimp net 28 is equal in front and rear, the threshing Since the cross-sectional area for the flow increases as it goes to the rear side, the flow and discharge of the thresh in the handling room 21 can be made smooth.

FIG. 4 shows the arrangement of the feed chain 30. The feed chain 30 includes front and rear pulleys 31, 32,
An endless feed chain 30 is wound around the outer periphery of the drive pulley 33 and the idle pulley 34, and is arranged at a predetermined interval above the upper surface of the feed chain 30 between the front and rear pulleys 31 and 32 and above the feed chain 30. Hold the stem of the harvested grain culm between a pinching rod (not shown),
In a state in which it is brought into contact with 20, it is transported from the front side to the rear side.

Particularly, in this embodiment, the position where the upper surface of the feed chain 30 intersects with the front end of the handle cylinder 20 is set to a position lower than the axis 23 by a height difference h1 in a side view, and the upper surface is handled. It is installed in a forward inclined state where the position where the rear end of the trunk 20 intersects with the shaft center 23 by a height difference h2 to improve the introduction of the tip into the handling chamber 21 and the depth of handling. However, since it is shallow at first and deeper at the end, the power required for threshing is reduced, and ear breakage can be prevented.

FIG. 5 shows an arrangement of a processing cylinder 40 for threshing again a threshing material mixed with grains. In this embodiment, the processing cylinder 40 is formed in a substantially cylindrical shape and a spiral 41 is formed on the outer peripheral surface. The shaft core 42 of the drum 40 is installed in an inclined state of front-low and rear-high, and the flow of the sorting wind 44 from the Karamin 43 passing below the processing drum 40 is improved, and the kernel processed by the processing drum 40 And the separation of straw waste and discharge of straw waste.

That is, the sorting wind 44 from the Karamin 43 passes below the feed pan 45 of the swinging sorting unit 4 and the chaff sheave 46
When passing through the gap of the processing cylinder 40 in the backward direction, the discharge from the processing cylinder 40 is separated into grains and straw chips, but the rear part of the processing cylinder 40 is located at a high position. The space through which the sorting wind 44 passes gradually increases, and the street of the sorting wind 44 becomes better.

The arrangement of the feed chain 30 and the processing cylinder 40 according to the present invention is not limited to the threshing apparatus A having the above-described substantially truncated cone-shaped handling cylinder 20, but a conventional cylinder having a substantially cylindrical shaped handling cylinder. It can also be applied to threshing equipment.

[0028]

According to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, there is provided a combine harvester for threshing the grains at the tip of a cutting grain with a large number of toothed teeth arranged in a handling drum while gripping and transporting the root portion of the harvested grain culm with a feed chain. In the threshing device, the handling cylinder is formed into a substantially truncated cone shape having a small diameter on the upstream side of the harvested grain culm transport and a large diameter on the downstream side,
The shaft of the handling cylinder is supported in an inclined state with the upstream side of the harvested grain culm transporting at a low position and the downstream side at a high position, and the lower part of the outer peripheral surface of the handling cylinder is accommodated in the handling room containing the handling cylinder. The cross-sectional area for the thresh flow gradually increases from the upstream side to the downstream side by arranging it approximately parallel to the crimp net that forms the inner bottom surface of the thresh. Thus, the discharge from the handling room can be made smooth.

According to the second aspect of the present invention, a large number of teeth are implanted on the outer peripheral surface of the handling cylinder at right angles to the axis of the handling cylinder, so that the movement trajectory of the cutting grain culm and the handling teeth are substantially parallel. In other words, it is possible to prevent culm breakage, thereby preventing an increase in threshing material.

According to the third aspect of the present invention, there is provided a combine harvester in which the grains at the tip of the harvested grain are threshed by a large number of toothed teeth which are planted in a handling cylinder while the root of the harvested grain culm is gripped and transported by a feed chain. In the threshing device, the upstream side of the feed chain is located at a position lower than the axis of the handling cylinder, and the downstream side is located at a position higher than the coaxial core, so that the introduction of the harvested grain culm tip into the handling chamber is improved, Furthermore, since the handling depth is shallow at the beginning and deeper at the end, the power required for threshing is reduced, and ear breakage can be prevented.

According to a fourth aspect of the present invention, in the combine threshing apparatus in which a processing cylinder for threshing the threshed material again is disposed downstream of the handling cylinder, the shaft of the processing cylinder is adapted to carry threshing material. By supporting the upper and lower parts in an inclined position with a low position and a downstream position at a high position, the space below the rear part of the processing cylinder expands, and the flow of sorting wind from Karamino becomes better, and the grain processed by the processing cylinder Good separation of the mixture of grain and straw waste and discharge of the straw waste can be achieved.

[Brief description of the drawings]

FIG. 1 is a side view of a combine provided with a threshing apparatus according to the present invention.

FIG. 2 is a side view of the handling cylinder.

FIG. 3 is a side view showing an arrangement state of a handling cylinder.

FIG. 4 is a side view showing an arrangement state of a feed chain.

FIG. 5 is a side view showing an arrangement state of a processing cylinder.

[Explanation of symbols]

 A Threshing device B Combine 20 Handling cylinder 21 Handling room 22 Lower part of outer peripheral surface 23 Shaft core 24 Handling teeth 28 Crimp net 30 Feed chain 40 Processing cylinder 42 Processing cylinder axis

Claims (4)

[Claims] 1. A feed chain (30) for cutting a stem of a harvested cereal stem.
Combine threshing equipment that thresh grains with ears with a large number of teething teeth (24) planted in a handling cylinder (20) while gripping and transporting
In (A), the handling cylinder (20) is formed in a substantially truncated cone shape having a small diameter on the upstream side of the harvested grain culm transport and a large diameter on the downstream side, and the axis of the handling cylinder (20).
(23) is supported in a tilted state with the upstream side of the harvested grain culm transport at the low position and the downstream side at the high position, and the lower part of the outer peripheral surface (2
A combine threshing device characterized in that 2) is arranged substantially in parallel with a crimp net (28) forming an inner bottom surface of a handling room (21) accommodating the handling cylinder (20). 2. A large number of teeth (24) on an outer peripheral surface of the cylinder (20).
The threshing device of a combine according to claim 1, wherein the thruster is planted at right angles to the axis (23) of the handling cylinder (20). 3. A feed chain (30) in which the root portion of the cut culm is removed.
Combine threshing equipment that thresh grains with ears with a large number of teething teeth (24) planted in a handling cylinder (20) while gripping and transporting
(A), characterized in that the upstream side of the feed chain (30) is arranged at a position lower than the axis (23) of the handling cylinder (20), and the downstream side is arranged at a position higher than the coaxial core (23). Combine threshing equipment. 4. A combine threshing device (A) in which a processing cylinder (40) for re-threshing threshing material is disposed downstream of a handling cylinder (20), wherein a shaft of the processing cylinder (40) is provided. A combine threshing device characterized in that the core (42) is pivotally supported in an inclined state with the upstream side of the threshing material transporting at a low position and the downstream side at a high position.