JPS6320283Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a threshing device for a direct current combine harvester that threshes various harvested crops according to their properties.

By the way, in the threshing device of a DC combine harvester that introduces the entire harvested crop into the handling chamber at the reaping section at the front of the machine, depending on the nature of the crop, the threshing device may not fully pass between the handling barrel and the corncave in the handling chamber. There is a tendency for the crops to pass by without being affected, resulting in untreated crops. Therefore, the crops introduced from the entrance in the center of the front of the handling chamber are fed between the handling barrel and the center of the corn cave, and the first stage is carried out. After threshing, the grain is separated and guided from the rear to the left and right sides of the handling drum, rotated once, and then fed again between the handling drum and the left and right sides of the corn cave to perform the second threshing. This is done to prevent unused items. However, with such a threshing device, if the harvested crop is a crop that is relatively easy to thresh, the threshing action will be applied more than necessary, causing harm such as damaging the threshed grain. The drawback was that good threshing conditions could not always be obtained for different types of crops.

The present invention was developed in view of the above-mentioned circumstances, and is a threshing device for a DC combine harvester that introduces the entire harvested crop into the handling chamber. The rear side of the chamber has an exit that spans its entire width, and is equipped with a closing guide plate that can be set to either close the central part of the exit and leave both left and right sides open, or leave the central part open. Furthermore, when the central part of the outlet of the handling chamber is closed, a separating guide member is installed in the handling chamber to separate the crop, which is rotated upward from the rear of the handling barrel along the guide plate, into left and right sides and guide it forward. By providing it on the top surface, if the central part of the handling chamber outlet is closed by the closing guide plate, the crops supplied into the handling chamber from the entrance in the center of the front are rotated once around the handling drum, and the first If the central part of the outlet of the handling chamber is opened by sliding or removing the closing guide plate, the crop will be subjected to only the first threshing action. The grain is discharged from the outlet, thereby performing a threshing process according to the characteristics of the crop, thereby preventing unhandled grains and damage to grains.

Hereinafter, the present invention will be explained based on the embodiments shown in the drawings. In FIG. In the device, the reaping section is composed of a weed divider 4, a pulling reel 5, a cutting blade 6, etc., and the crops harvested in this section are transported by an auxiliary conveyor 7, a horizontal feed auger 8, and a vertical conveyor 9. The threshing device is configured to be supplied to the threshing device 3, and the threshing device has a handling chamber 10 provided with an inlet 10a on the front and an outlet 10b on the rear, a handling cylinder 11 mounted on a shaft in the handling chamber, and a The outlet 10b is provided with a beater 13 for discharging straw. However, while the treatment chamber entrance 10a is provided at the center of the front of the chamber, the outlet 10b at the rear of the treatment chamber is opened over the entire width of the chamber, and accordingly, there are The length of the beater 13 is approximately equal to the total width of the handling chamber. Furthermore, as shown in FIGS. 2 and 3, the rear end 12' of the cone cave 12 at the outlet 10b is
and the upper surface 10' of the handling chamber, by sliding in the width direction, the outlet 10b is opened as shown in FIG. 3a.
The two closing guide plates 14, 14 can be selectively set to either a state in which the central part is closed and both left and right sides are open, or a state in which the central part is open as shown in FIG. It is equipped with.
Here, in the illustrated embodiment, the closing guide plate 1
4 and 14 are capable of sliding in the width direction by having their upper and lower edges engaged with upper and lower rails 14a, 14a, which are horizontally suspended between the side walls 1a, 1a of the fuselage 1, respectively. Alternatively, the plate may be taken out from the side of the fuselage with the central outlet shown in FIG. 3b open. Reference numeral 15 denotes a separation guide member that projects from the upper surface 10' of the handling chamber 10, and this member has a shape that gradually expands left and right from a sharp point 15a at the rear end toward the front. In Fig. 1, 16 is a straw walker disposed from below the outlet 10b of the handling room to the straw discharge section 17 at the rear of the machine, and 18 is a sorting section provided at the bottom of the machine. Board 19, Toumi 20, Glensieve 21
Screw conveyors 22, 23, etc. are also provided for carrying out the sorted first and second items.

According to the above configuration, the crops harvested in the reaping section 2 are introduced into the handling chamber 10 from the entrance 10a at the center of the front surface, and are supplied between the handling barrel 11 and the central part of the corn cave 12, thereby being fed into the first stage. During threshing, the exit 1 at the rear of the handling room
0b is the closing guide plate 14,1 as shown in FIG. 3a.
4, when the central part is closed, the crops that have undergone the first threshing are rotated upward from the rear of the handling cylinder along the guide plate by the rotation of the handling cylinder 11, and are separated. The handling cylinder 11 is guided forward while being separated into left and right sides by the guide member 15.
The grain is again supplied between the left and right sides of the corn cave 12, thereby performing the second threshing, and the beater 13 is fed from the left and right sides where the outlet 10b is opened at the rear of the rear handling chamber. As a result, it is discharged onto the straw walker 16. On the other hand, when the closing guide plates 14, 14 open the central part of the handling chamber outlet 10b as shown in FIG. The threshed crops are discharged directly onto the straw walker 16 from the center where the outlet 10b is opened by the action of the beater 13, without being passed upward from the rear of the handling barrel. Therefore, in this case, the second threshing will not be performed, and in this way the closing guide plates 14, 1
By simply sliding 4, it is possible to perform the threshing process once or twice depending on the nature of the harvested crop.

As described above, according to the threshing device of the present invention, harvested crops can be threshed twice in the handling room (first and second times), or can be discharged only after the first threshing process. It is now possible to easily select and set one of the two, and with this, crops that tend to be left unprocessed can be threshed twice, while crops that can be threshed relatively easily can be threshed only once. This has the effect that all crops can be threshed well without causing any unhandled grains or damage to the grains.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional side view of a direct current combine harvester showing an embodiment of the present invention, Fig. 2 is an enlarged side view of the main parts of the embodiment, and Figs. 3 a and b are the present invention taken along the line shown in Fig. 1 FIG. 3... Threshing device, 10... Handling room, 10a... Inlet, 10b... Outlet, 11... Handling cylinder, 12... Corn cave, 14... Closing guide plate, 15... Separation guide member.

Claims (1)

[Scope of utility model registration request] This is a threshing device in which a handling barrel is mounted on a shaft in a handling chamber and a corn cave is arranged below the threshing machine, and an entrance is provided at the center of the front of the handling chamber, and an outlet extending over the entire width of the chamber is provided at the rear of the chamber. Equipped with a closure guide plate that can be set to either close the center of the exit and leave both left and right sides open, or leave the center open. Threshing of a direct current type combine harvester characterized by being provided with a separation guide member that guides the crop, which is circulated upward from the rear of the handling barrel, to the left and right sides while guiding it forward when the central part of the outlet is closed by a guide plate. Device.