JPH0122432Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention has a grain separation effect by making the material to be handled pass through the handling section of the handling cylinder and concave two or more times while rotating and flowing the outer periphery of the handling cylinder. and a threshing device designed to improve threshing performance including grain leakage through a concave,
Specifically, a pair of discharge ports opening at the back of a handling chamber housing a rotary handling drum and having a concave at the bottom are connected to a grain receiving port opening at the front of the handling chamber. A plate-shaped guide device is provided at an upper part of the handling barrel, and is provided so as to be offset to both lateral sides in the direction of the rotation axis, and presses and disperses the material to be handled toward the two discharge ports. A pair of beaters for discharging the processed material after threshing to the sorting section, which is equipped with a sorting width approximately the same width as the width of the chamber, and whose starting end of processed material transfer is located on the handling chamber side, is installed between the two. It relates to a device installed facing each outlet.

In such a threshing device, the pair of beaters are located offset toward both lateral ends in the sorting width direction of the sorting section, so that the processed material after threshing is concentrated and discharged at both ends in the width direction of the sorting section. As a result, the entire width of the sorting section of the sorting section cannot be used effectively, resulting in the disadvantage that the amount of grain loss increases as grains are discharged together with straw waste, and there is room for improvement.

The present invention was developed in view of the above-mentioned circumstances, and its purpose is to disperse the processed material from the pair of discharge ports over the entire width of the sorting section by simple modification. The grain sorting and recovery can be carried out well by the configuration, and in addition, while doing so, it is possible to discharge the processed material in a part close to the handling room of the sorting section. The point is to ensure reliable supply.

A characteristic configuration of the threshing device according to the present invention is such that a pair of guide plates made of hard material are placed opposite to each of the pair of beaters to guide the processed material discharged by the pair of beaters toward the center of the sorting section. and a receiving member made of a soft material that receives the processed material guided by the guide plate and causes it to fall onto the sorting section is located close to the terminal end of each of the pair of guide plates. It is at the point that I have set.

Next, the effects of the feature configuration of the present invention will be described.

That is, (a) the processed material discharged from each of the pair of beaters is guided toward the center of the sorting section by a pair of guide plates so that the processed material is not biased toward both ends of the sorting section in the sorting width direction; (b) The processed material from the beater collides with a guide plate made of hard material to separate straw waste and grains, and (c) The guide plate is made of a receiving member made of soft material. In order to shorten the length of the sorting section along the direction of transfer of the processed materials required for the guidance in (a) above, by receiving the processed materials from the Even if the plate is installed at a steep slope with respect to the direction of transfer of the processed material, it is possible to prevent the guided processed material from moving unnecessarily to other discharge ports, and it can be installed close to the handling room of the sorting section. The material to be treated can be supplied dropwise to the part.

Therefore, by (a) above, it is possible to perform a good sorting process while making effective use of the entire sorting width of the sorting section, and by (b) above, it is possible to improve the grain sorting recovery rate. According to (c) above, by making it possible to effectively utilize the width of the sorting section along the direction of transfer of the processed material, it is possible to further improve the sorting processing efficiency.

As a whole, we have obtained a threshing device that is excellent in both threshing processing and sorting processing and has great practical advantages.

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in Figure 1, there is a reel 1 that scrapes the planted grain culms toward the rear of the machine, a cutting blade 2 that reaps the raked grain culms, and a cutting blade 2 that receives the harvested grain culms and collects them toward the center in the width direction of the machine. A reaping section 5 equipped with an auger 3 that sends the harvested grain to the rear of the machine, and a conveyor 4 that conveys the harvested grain culm to the rear of the machine with the ears in front, is provided at the front of the machine. A device 6 for threshing culms and a tank 7 for collecting grains after the threshing process are provided at the rear of the machine body, and a crawler traveling device 8 and an operation control section S are also provided to constitute a combine harvester.

The threshing device 6 is configured by providing a handling chamber A in which the handling cylinder 9 is housed and provided with a concave 10 located below the handling cylinder 9;
A pair of discharge ports 11, 11 that open at the back of the grain culm receiving port 12 that opens at the front of the handling room A,
The treatment cylinder is provided so as to be offset on both lateral sides in the rotational axis direction
A plate-shaped guide 13 for distributing pressure and guiding toward the first side is provided above the handling drum 9 in an inclined position intersecting the circumferential direction of the handling drum, and further, the processed material after threshing is transferred to the width of the handling chamber. A pair of beaters 15, 15 having approximately the same sorting width and for discharging the processed material to the sorting section 14, which transfers the processed material in the direction of the rotation axis of the handling cylinder, are arranged to face the two discharge ports 11, 11, respectively. Then, the threshing processing action section between the handling cylinder 9 and the concave 10 is operated twice while the processed material supplied from the grain culm receiving port 12 is circulated around the outer circumference of the handling cylinder 9. The structure is such that the threshing process can be performed with less unhandled grain by allowing the grains to pass through the grains.

The sorting section 14 is configured with a swing-driven rack plate 16 for transporting the processed material falling through the concave 10 to the rear, and also for transporting the processed material discharged from the beater 15 to the rear. An auxiliary oscillating sorting plate 18 with a stroke rack is provided, which sorts grains, branch straw with grains, etc. while conveying them to the dust outlet 17, and drops them downward, while conveying and discharging the waste straw to the dust exhaust port 17. The processed materials supplied from the rack plate 16 and the auxiliary swinging sorting board 18 are sorted by the cooperation of the sorting wind from the winnowing machine 19 and the main swinging sorting board 20, and the grains are placed in the first slot 21 and , the second materials are collected into the second port 22, and dust such as straw waste is sent to the dust exhaust port 17 and discharged.

Further, a device 23 for lifting and transporting the grains collected at the first port 21 into the tank 7 is provided so as to sequentially collect the grains after the threshing process. A device 24 is provided for transporting the second grains collected into the handling room A so as to return them to the handling room A, so that they can be threshed again.

A pair of guide plates 25, 25 made of a hard material such as iron, which guide the processed material discharged by the pair of beaters 15, 15 toward the center of the sorting section 14, are installed in the pair of beaters 15, 15, respectively. a curtain-shaped receiving member 26 made of a hard material such as rubber, which is provided to face the guide plates 25, 25, and receives the processed material guided by the guide plates 25, 25 and drops it onto the sorting section 14;
26 is provided in a state close to the terminal end of each of the pair of guide plates 25, 25, so that the processed material from both the discharge ports 11, 11 is dispersed over the entire sorting width direction of the sorting section 14. state, and the sorting unit 1
The grains can be discharged to the sorting section 14 while being supplied to the starting end side in the transfer direction of the grains in step 4, and the grains can be separated from the grains by colliding with the guide plates 25, 25. It's like this.

However, in the figure, 27 and 27 are forks that prevent the straw waste from falling onto the rack plate 12 from the discharge ports 11 and 11, and 28 and 28 are forks that prevent the waste from falling on the rack board 12 from the beaters 15 and 15. Both outlets 11, 11
This is a partition plate that prevents water from flowing to the back wall of the handling room.

In addition, when installing the guide plates 25, 25, they are pivoted around the vertical axis 29 so as to be able to swing freely, and a bolt 30 for adjusting the position of the guide plates is provided, so that the guide plates 25, 25 can be mounted according to usage conditions such as the amount of material to be processed. The guide plates 25, 25 are swing-adjustable.

To implement the present invention, for example, one beater 15
However, the specific mounting structure of the guide plate 25 can be changed in various ways, such as arranging a plurality of guide plates 25 in parallel in the direction of the rotation axis of the handling cylinder, and the specific mounting structure of the receiving member 26 can also be changed. Various changes can be made depending on the mounting structure of the plate 25, etc.

Further, the threshing device of the present invention is suitable for threshing rice and wheat, but can also be used for threshing various crops such as soybeans.

[Brief explanation of the drawing]

The drawings show an embodiment of the threshing device according to the present invention,
FIG. 1 is a partially cutaway side view of the combine, FIG. 2 is a schematic cross-sectional plan view of the handling chamber, and FIG. 3 is a plan view showing the guide plate mounting structure. 9... Handling cylinder, 10... Concave, 11... Discharge port, 12... Grain culm receiving port, 13... Guide tool, 1
4... Sorting section, 15... Beater, 25... Guide plate, 26... Receiving member, 29... Vertical shaft, A...
Handling chamber, X... Handling cylinder rotation axis.

Claims (1)

[Claims for Utility Model Registration] A pair of discharge ports 11, 11 that open at the back of the handling chamber A which houses the rotary handling cylinder 9 and is equipped with a concave 10 at the bottom thereof are provided in the front part of the handling chamber A. With respect to the opening grain culm receiving port 12, the handling barrel rotation axis X
A plate-shaped guide device 13 is provided at the upper part of the handling cylinder A, and is provided so as to be offset on both lateral sides of the direction, and presses and disperses the material to be handled toward the two discharge ports 11. a pair of beaters 15 for discharging the processed material after threshing to the sorting section 14, which is equipped with a sorting width approximately the same width as the width of the chamber A and whose processing material transfer starting end is located on the handling chamber side; 15
is a threshing device provided facing each of the discharge ports 11, 11, and guides the processed material discharged by the pair of beaters 15, 15 toward the center side of the sorting section 14. A pair of guide plates 25, 25 made of hard material are connected to the pair of beaters 1.
A receiving member 26 made of a soft material is provided to face each of the guide plates 25 and 15, and is made of a soft material and is configured to receive the processed material guided by the guide plates 25 and 25 and drop it onto the sorting section 14. Board 2
The threshing device is located close to the terminal end of each of the grains 5 and 25. The threshing device according to claim 1, wherein the guide plates 25, 25 are pivotally supported around a vertical axis 29 so as to be swing-adjustable.