JPH0461608B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a threshing sorting device in a threshing machine.

[Prior art and its problems] In general, a threshing device, as shown in Figures 1 and 2,
The harvested grain culm is transported by the transport chain 1 and the transport rail 2 while being threshed by the handling cylinder 3, and the paddy and fine straw waste are passed downward through the receiving net 4 around the outer periphery of the handling cylinder. It is constructed to discharge relatively long straw waste from the side.

The paddy, straw waste, etc. sorted downward through the receiving net 4 are moved through grain sheaves 5, chaff sheaves 6, straw racks 7, etc., which are provided below the receiving net 4 and extend rearward to swing back and forth. Through the machine, paddy and straw waste were oscillatedly sorted, the paddy was collected downward, and the straw waste was discharged from the rear and out of the machine from the dust removal device 8. (For example, see Japanese Patent Application Laid-open No. 56-106518.) Such a swinging sorting means requires a large space and a complicated mechanism, and if moisture adheres to the grain culm, it may cause damage to the receiving cylinder 3. Paddy and straw waste adhere to the net 4 and the oscillating sorting screen, causing clogging, which significantly reduces the sorting capacity and hinders the threshing operation.
In addition, there were other problems such as the large noise of the oscillating sorter.

In order to eliminate such a clogging phenomenon, a threshing device has been proposed in which a heat pipe is installed below the oscillating sorting section to heat the oscillating sorting section. (for example,
(Refer to Utility Model Application Publication No. 57-25542) This method utilizes the exhaust gas heat from the engine installed in the combine harvester, but although it is somewhat effective, it is not suitable for grains and straw with high moisture content. Because it takes time to dry the waste,
In order to simply dry the material during the short time it passes through the sorting section, considerable high temperature heating is required. This requires the installation of an engine with higher horsepower than necessary, and the structure becomes complicated due to exhaust gas piping, etc., and heating the grain to high temperatures immediately after threshing causes discoloration of the rice. There is also a risk of deterioration in taste.

The object of the present invention is to centrifugally dehydrate all threshed grains and processed materials such as straw waste, ear cuts, and crochets generated during threshing, and then sort them while re-threshing them in a rotating sorter, and then shake them. The objective is to make the system more compact by omitting the dynamic sorting means and the like.

[Means for Solving the Problems] In order to solve the problems of the prior art, the present invention has a structure in which a handling chamber having a handling cylinder is configured by a receiving plate placed along the outer periphery of the handling cylinder, and On one side of the handling chamber, a conveyor body in a horizontal position is arranged in series for collecting and conveying all of the processed materials such as grains, straw waste, ear cuts, and crochets threshed from the grain culm by the handling cylinder. , on the other hand, below the conveyor, one end is connected to a derivative having a receiving part for the processed material at the upper part, and
A rotary sorting body in a horizontal position having a large number of grain sorting holes in which a re-threshing means of a screw structure is rotatably provided inside is mounted on an axis, and furthermore, a dropping supply section for processed materials provided on the conveying body and the above-mentioned derivative are provided. A centrifugal dehydration means for the processed material is interposed between the receiving part and the
A wind sorting means is disposed below the rotary sorting body.

[Example] Embodiments of the invention will be described with reference to the drawings.

3 and 4 show the first embodiment, FIGS. 13 and 14 show the second embodiment, and FIGS. 5 to 12 show other examples of the rotary sorting body.

First, the first embodiment will be explained with reference to FIGS. 3 and 4. Numeral 11 is a conveying chain for grain culms, 12 is a conveying rail, 13 is a handling cylinder having handling teeth 14, and 15 is a grain culm conveying chain along the outer periphery of the handling cylinder 13. This is a catch plate installed along the A screw conveyor 16 for conveying threshed paddy etc. in one direction is connected to one side of the receiving plate. A cylindrical rotary sorting body 17 is provided below the screw conveyor 16, has an axis perpendicular to the axis of the handling cylinder 13, and is connected to a guide body 51 having a gutter structure. is communicated with. and,
A large number of sorting holes 17a through which paddy can pass are provided on the wall surface of the rotary sorting body 17, and as is clear from FIG. It is supported and positioned by a support roll 19 of.

Further, a gear 20 is attached to the outer periphery of one end of the rotary sorting body 17, and the machine body 1 is attached to this gear 20.
A small-diameter gear 22 provided at the end of a rotating shaft 21 pivotally supported by a rotary sorter 17 is meshed with the gear 22 so that the rotary sorting body 17 rotates at a low speed.

Furthermore, inside the rotary sorting body 17, along its central axis, one end is pivotally supported on the body 18, and the other end is pivotally supported on a case portion 23 formed on the body 18, and the rotary sorting body 17 is oppositely supported. A relatively high speed rotating shaft 24 is provided. As is clear from FIG. 3, this rotary shaft 24 is attached with a conveyor 25 which has a screw-like structure in which a band-shaped plate is spirally formed and which performs a re-threshing function for straw waste with paddy attached. There is. A space 25a formed by a stay 26 is formed in this conveyor 25, and the suction force of a suction fan, which will be described later, is increased by this space 25a.

Reference numeral 27 denotes a suction fan provided within the case portion 23, and this suction fan 27 is attached to the rotating shaft 24. Further, this suction fan 27 is attached to the rotating shaft 24 of the conveyor 25 and is configured to rotate integrally therewith.
may be attached to a rotating shaft (not shown) that is driven separately from the rotating shaft 24. Further, a duct 28 as shown by the imaginary line in FIG. 4 is attached to the case portion 23 of the suction fan 27, and discharges relatively coarse straw waste forcibly sucked by the suction fan 27 to the outside of the machine. This is how it was done.

Reference numeral 29 in FIG. 4 is a winnow, which is provided parallel to the axis of the rotary sorting body 17 and has approximately the same width as the rotary sorting body 17. It is positioned so as to cross the lower part of the rotary sorting body 17, and only the dust that falls from the rotary sorting body 17 together with the paddy is discharged to the outside of the machine.

30 is a screw conveyor provided below the rotary sorting body 17 and parallel to its axis;
The selected paddy is conveyed to one side, and as shown in FIG. The rice collected in the collecting body 32 can be transferred to a predetermined location by a screw conveyor (not shown) provided at the bottom of the collecting body 32.

Reference numeral 33 denotes a rotating brush that is provided parallel to the axis of the rotary sorting body 17 and is rotatably in sliding contact with the outer surface of the rotary sorting body 17. The rotating sorting body 17 is rotated in the same direction or in the opposite direction.
This is to remove straw waste that is or is about to clog the sorting hole 17a.

Next, the details of the dewatering device 40 will be described. Reference numeral 41 denotes a rotary dehydrating cylinder which has a vertical truncated conical shape and has a large number of dehydrating holes 41a and rotates at high speed. At the center of the interior of 41, there is disposed a feeder 44 with a spiral shape and a brush structure on the outer periphery, which is attached to a vertical shaft 43 that rotates at a low speed and is supported by upper and lower arms 42. is equipped with an umbrella-shaped diffuser 45 that disperses the input grains. Reference numeral 46 denotes a cylindrical cover with a frusto-conical shape disposed on the outside of the rotary dewatering cylinder 41 with a slight gap therebetween, and a water receiver 47 is integrally or separately provided at the lower edge of the cover 46. It is provided. In the figure, 48 and 49 are pulleys. The dewatering device 40 is constructed as described above, and its lower portion is communicated with one end of the rotary sorting body 17.

FIG. 5 shows a modification in which the rotating brush 33 is formed in a spiral shape. Also, Fig. 6 shows the rotating brush 3.
7 shows a configuration in which the two rotating brushes 3 rotate in the same direction as the rotating sorting body 17.
3 is used, and one of the rotating brushes 33 is rotated in the opposite direction to the rotating direction of the rotating sorting body 17.

8 and 9 show wavy irregularities 25 on the outer peripheral edge of the screw-shaped carrier 25 attached to the rotating shaft 24.
This example shows an example in which the conveyor 25 is provided with a re-threshing effect to further increase the re-threshing effect of the conveyor 25.

The embodiment shown in FIGS. 10 and 11 shows another one instead of the screw-shaped conveying body 25, in which the tip is retracted with respect to the rotation direction and inclined with respect to the rotation axis 24. A large number of rods 25c fixed in a twisted state with a function are attached to the rotating shaft 24. In short, grains that are cut in the handling barrel 13, that is, the tip of the grain culm is cut off with the paddy still attached during threshing, and are fed into the rotary sorting body 17 are threshed again and straw waste etc. are removed. Any device may be used as long as it has the effect of sending it in the direction of the suction fan 27, and is not limited to the one in the embodiment.

FIG. 12 shows another embodiment of the rotary sorting body 17, in which the rotary sorting body has a tapered shape,
Specifically, the diameter is gradually increased from the paddy supply side to the suction fan 27, so that the supplied paddy, straw waste, etc. can move along the tapered surface without accumulating on the supply side. This is designed to improve sorting and release efficiency. Although the screw-shaped conveying body 25 is shown so as to gradually increase in diameter in accordance with the taper of the rotary sorting body 17, this conveying body 25 may also be a straight conveying body as shown in FIG. 4 or the like.

Next, a second embodiment will be described with reference to FIGS. 13 and 14. In this embodiment, the rotary sorting body 17, the winnowing machine 2
9. The screw conveyor 30 and the like are arranged parallel to the axis of the handling cylinder 13. This embodiment has a screw conveyor 5 as shown in the figure.
0 connects the dewatering device 40 and the rotary sorting body 17.

In each of the above embodiments, the lower handling method has been described, but it can also be cited for the upper handling method. That is, since the upper handling method can be implemented by changing the arrangement of the screw conveyor 16, the rotary sorting body 17, the winnower 29, the screw conveyor 30, etc. with respect to the handling drum, the present invention is particularly applicable to the lower handling method of threshing. It is not limited to devices.

[Description of Effect] Next, the effect will be explained. The grain culms transported to the handling room by the transport chain 11 and the transport rail 12 are threshed by the handling cylinder 13, and the threshed paddy, straw waste, etc. are removed by the rotating action of the handling teeth 14. It is sent to the screw conveyor 16, further sent to one side by the screw conveyor 16, and thrown into the upper part of the dewatering device 40. The input grains are diffused in all directions by the diffuser 45, and the centrifugal dehydration action of the rotating dehydration cylinder 41 rotating at high speed dehydrates the moisture adhering to the rice and straw waste. The water is expelled from the dewatering hole 41a, travels along the inner surface of the cover 46, reaches the bottom, and is discharged to the outside through the water receiver 47. In addition, the dehydrated paddy etc. is conveyed downward by a feeder 44 having a brush structure, and is transported to a rotary sorter 17.
supplied to one end of the

The rice grains and straw waste sent into the rotary sorting body 17 fall through the sorting holes 17a of the rotary sorting body 17, as well as fine dust and straw waste. During the falling process, the falling paddy is sorted by the wind force of the chisel 29, and the paddy falls to the bottom and is collected by the screw conveyor 30 via the grain lifting device 31 into the collecting body 32. Dust is blown out of the machine by wind power.

In addition, during threshing, the straw, etc., which is broken into ears and has paddy attached to it, is rotated and conveyed by a screw-shaped conveyor 25 provided in the rotary sorter 17, and is rubbed against the inner surface of the rotary sorter 17. The paddy is re-thrested by the rubbing action, and the straw is sent to the suction fan 27 by the carrier 25 and discharged outside the machine, and the re-threshed paddy is recovered by the same action as described above.

[Effects of the Invention] As described above, according to the configuration of the present invention, the following effects can be obtained.

(a) Since the means for sorting the threshed material is a rotary sorter having sorting holes in place of the conventional rocking sorter, the sorting action of this rotary sorter is endless and limitless. As a result, a large sorting efficiency can be obtained with a small rotary sorting body, which makes it possible to downsize a wide threshing device, simplify the structure, reduce weight, and reduce costs compared to conventional technology. Also, compared to conventional oscillating sorting,
It has low vibration noise and is suitable for threshing and sorting equipment such as combine harvesters.

(b) Processed materials such as threshed grains, straw waste, ear cuts, and kashimata are sent from the handling room to a conveyor, and all processed materials are further dehydrated to remove adhering moisture by centrifugal dewatering means. It is possible to improve the sorting and re-threshing processes in the rotary sorter. In addition, the high-speed rotational drive of the centrifugal dewatering means can not only be easily implemented by using a belt, pulley, etc. from the drive means mounted on the combine harvester.
Since it requires only a small horsepower, it does not place a large load on the engine, and its structure is simple.

(c) Since the rotary sorter has a sorting function and a re-threshing function, it is possible to effectively re-thresh grains that are attached to ears of ears, picks, etc., and also to shred straw waste, etc. Efficiency can be improved.

[Brief explanation of drawings]

Fig. 1 is a sectional view of the conventional threshing device, Fig. 2 is a sectional view of the threshing section of the same as above, Fig. 3 is a longitudinal sectional front view of the device of the present invention, Fig. 4 is a longitudinal sectional side view of the same as the above, and Fig. 5 is a rotary sorter. 6 is a longitudinal side view of the same as above, FIG. 7 is a longitudinal side view showing an example of a rotating sorting body using two brushes, and FIG. 8 is a rotating side view showing a modified example of the conveying body. 9 is a partially cutaway front view of the sorting body, FIG. 9 is a longitudinal side view of the same as above, FIG. 10 is a partially cutaway front view of the rotary sorting body showing a modification of the conveyor, FIG. The figure is a partially cutaway front view showing another example of the rotary sorting body, FIG. 13 is a longitudinal sectional front view showing another embodiment of the apparatus of the present invention, and FIG. 14 is a longitudinal sectional side view of the same. 11...Transportation chain, 12...Transportation rail, 1
3... Handling cylinder, 16... Screw conveyor, 17
... Rotating sorting body, 17a ... Sorting hole, 20 ... Gear, 21 ... Rotating shaft, 22 ... Gear, 24 ... Rotating shaft, 25 ... Screw-shaped conveyor, 27 ...
Suction fan, 29... Tang winch, 30... Screw conveyor, 40... Dehydration device, 41... Rotating dehydration cylinder, 44... Feeding body, 45... Diffusion body, 46...
...Cover, 47...Water receiver, 51...Derivative.

Claims (1)

[Scope of Claims] 1. A handling chamber having a handling drum is constituted by a receiving plate installed along the outer periphery of the handling drum, and a grain culm is placed on one side of the handling chamber by the handling drum. Horizontal transport bodies are installed in series to collect and transport all the processed materials such as grains threshed from the grains, straw waste, ears of ears, and kashimata.On the other hand, below the transport bodies, one end of the above-mentioned processed materials is placed on the upper part of the transport bodies. A rotary sorting body in a horizontal position, which is connected to the induction body having a receiving part and has a large number of grain sorting holes rotatably provided with a screw-structured re-threshing means therein, is mounted on a shaft, and is further attached to the conveying body. A centrifugal dewatering means for the processed material is interposed between the provided falling supply section for the processed material and the receiving section for the derivative, and a wind screening means is provided below the rotary sorting body. Threshing sorting equipment.