JPH0122431Y2 - - 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 above the handling drum 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 to the sorting section are provided in a state facing each of the discharge ports.

In such a threshing device, conventionally, a pair of beaters is constructed by separately forming a rotating shaft for each of the beaters, but in this case, a drive transmission device for each of the pair of beaters is provided separately. This has the disadvantage that the beater mounting structure is expensive and complicated.

In order to avoid such disadvantages, the inventor of the present invention considered a means of integrally forming the rotating shafts of each of the pair of beaters. If this happens, as shown in FIG. 7, not only will there be an inconvenience that debris such as straw waste will accumulate between the portion of the rotating support shaft 31 located between the two beaters and the back wall 32 of the handling chamber. There was also a risk that the accumulated material, which was heated by the friction caused by the rotation of the support shaft 31, would catch fire. To explain in more detail, it is thought that the processed material does not flow to the back of the handling chamber, which corresponds to the area between the pair of discharge ports, but the waste such as straw that gets mixed into the processed material from the discharge port is The phenomenon of floating fluid is observed in some places, and the rotating shaft 31 and the back wall 32 of the handling room
If the distance between the two and Because the beater, that is, the rotating shaft, is located close to the back of the handling chamber, a phenomenon of dust accumulation is observed.

The present invention was developed in view of the above-mentioned circumstances, and its purpose is to simplify the beater mounting structure while suppressing the accumulation of dust at the back of the handling chamber.

The characteristic configuration of the threshing device according to the present invention is that the rotational shaft of the pair of beaters is integrally formed, and a portion of the rotational shaft located between the two beaters includes:
The present invention is characterized in that a pressing portion is provided for discharging the fluid from the back portion of the handling chamber to the sorting portion.

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

In other words, since the rotational shafts of the pair of beaters are integrally formed, the pair of beaters can be driven by simply providing a transmission device for driving one rotational shaft, and the beater mounting structure is improved. In particular, according to the present invention, the pressing part provided between both beaters of the rotating shaft prevents the fluid from flowing to the back part corresponding to between the pair of discharge ports. By discharging the waste to the sorting section, it is possible to prevent dust such as straw waste from accumulating between the back wall of the handling chamber and the rotating shaft.

Therefore, it has been possible to simplify the beater mounting structure while reliably avoiding the risk of danger due to dirt accumulation, and to obtain a threshing device that can be used even better. I've reached it.

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 further, a crawler traveling device 8 and an operation control unit U are provided to constitute a combine harvester.

The threshing device 6 is configured by providing a handling chamber A in which the handling drum 9 is housed and equipped with a concave 10 located at the lower part of the handling drum 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,
Both lateral sides of the handling cylinder 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 discharged to the sorting section 14. a pair of beaters 15 for
15 is provided in a state facing each of the two discharge ports 11, 11, and the material to be treated, which is supplied from the grain culm receiving port 12, is swirled around the outer periphery of the handling drum 9 and flows through the handling drum 9. The structure is such that the threshing process is not allowed to pass through the threshing processing section between the concave 10 and the concave 10 more than once, so that the threshing process can be performed with less unhandled parts.

The sorting section 14 is configured with a rocking drive type crack plate 16 that sends the processed material falling through the concave 10 to the rear, and a swinging type crack plate 16 that transports 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 outlet 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 out to the dust exhaust port 17 and discharged. However, C in the figure is a beater curtain that receives and drops the discharged material from the beater 15 onto the auxiliary oscillating sorting plate 18.

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.

To configure the pair of beaters 15, 15, as shown in FIGS. 2 to 4, a single rectangular cylindrical rotation support shaft 25 is connected to a plate-like member 26 that is fitted into both ends of the rotation support shaft 25. It is supported and provided, and its rotation support shaft 2
Four workpiece pressing blades 15A each formed by bending a plate material are connected to both end portions of the blade 5 by bolts.
The outer surface of the rotating support shaft 25 located between the beaters 15, 15 constitutes a pressing part S for discharging the fluid to the back part of the handling chamber A to the sorting part 14. , both beaters 15, 15 can be driven using one transmission belt 27, and the back wall a of the handling chamber corresponding to the space between the pair of discharge ports 11 is
It is possible to suppress the accumulation of debris such as straw waste between the rotary support shaft 25 and the rotary support shaft 25.

Next, another example will be described.

In FIG. 5, a pair of beaters 15, 15 is constructed by connecting four plate-like members 28 with material pressing blades 15A on both ends by bolts.
Further, FIG. 6 shows a case in which three plate-shaped members 28 having workpiece pressing blades 15A on both ends are connected by bolts, and in these cases, the rotating shaft 25 and the pressing blades 15A are formed separately. Compared to connecting them in a post-process, the number of parts can be reduced, making manufacturing easier and reducing weight.

In carrying out the present invention, the rotation support shaft 25 may be made into a cylindrical shape instead of being made into a rectangular tube shape as in the above embodiment.
It should be attached to.

Although the proposed threshing device is mainly used for rice, it can also be used for crops such as wheat and soybeans.

[Brief explanation of the drawing]

The drawings show an embodiment of the threshing device according to the present invention,
Figure 1 is a partially cutaway side view of the combine, Figure 2 is a cross-sectional plan view of the handling chamber, Figure 3 is a perspective view showing the beater, Figure 4 is a vertical cross-sectional side view of the back wall of the handling chamber, and Figure 5
The drawings are a perspective view showing a beater of another embodiment, FIG. 6 is a vertical side view of another embodiment, and FIG. 7 is a vertical side view of a comparative example. 9... Handling cylinder, 10... Concave, 11... Discharge port, 12... Grain culm receiving port, 13... Guide tool, 1
4... Sorting section, 15... Beater, 25... Rotating shaft, A... Handling room, S... Pressing section.

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 above the handling drum 9 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, 15 for discharging the processed material to the sorting section 14
The threshing device is provided in such a manner that it faces both the discharge ports 11, 11, respectively, in which the rotation support shaft 25 of the pair of beaters 15, 15 is integrally formed, and the rotation support shaft 25 between the two beaters A threshing device characterized in that a pressing portion S is provided at a portion located at the rear portion of the handling chamber A for discharging the fluid to the sorting portion 14. The threshing device according to claim 1, wherein the rotating support shaft 25 of the beater 15 is formed into a rectangular tube shape, and the pressing portion S is formed by the outer surface thereof.