JPH0117983Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a grain storage device for a combine harvester, and is intended to increase the storage capacity and to reliably store and discharge grains with a simple structure.

By the way, in combine harvesters that store grain that has been threshed and sorted from the harvested grain culm in a tank installed on the side of the threshing section, the storage capacity is limited to a certain amount due to installation space constraints on the size of the tank. Therefore, the reaping and threshing operations cannot be carried out continuously for a long period of time, and the operation of discharging the grains must be carried out frequently. To deal with this, it may be possible to install a tank above the threshing section, but in that case, it would be necessary to separately equip a conveying device to send the grain from the threshing section to the tank above, which would require a significant amount of equipment. In addition to complicating the process, if a tank is provided above the threshing section, it is difficult to completely drain the grains in the tank, causing problems such as some grains remaining in the tank. It is.

The present invention was developed in view of the above circumstances, and is equipped with a side tank and an upper tank whose internal parts are connected to the sides and above of the threshing section. By equipping a conveyor and a horizontal conveyor, grains can be loaded into and discharged from the side and upper tanks, and the bottom of the upper tank can be spread over as wide an area as possible. At the same time, it can be rotated from a state where it is placed above the threshing section to a state where it is raised above the side tank, thereby increasing the grain storage capacity while suppressing the height of the combine as a whole. This system has a simple structure and enables grains to be reliably loaded and discharged into each tank.

This will be explained below using examples.
In the figure, 1 is a threshing section equipped with threshing and sorting devices such as a handling cylinder 2, a receiving net 3, and a swinging sorting plate 4, and 5 is a feed chain that supplies harvested grain culm from a reaping section to the threshing section. . Reference numeral 6 indicates a side tank installed on the side of the threshing section 1, and 7 indicates an upper tank installed above the threshing section 1. The upper end opening surface of the side tank and the side end opening of the upper tank are made of flexible material such as cloth. Elastic part 8 made of flexible material
At the same time, the upper tank is connected to the side tank via the hinge 9, so that when the hydraulic cylinder 10 is actuated, the upper tank changes from the state placed above the threshing section to the first tank. As shown by the chain line in the figure, it can be rotated to rise above the side tank. Reference numeral 11 denotes a first screw for transporting grain disposed at the bottom of the threshing section 1. The screw projects from the threshing section and passes through the bottom of the side tank 6, and the first screw 11 is provided at the bottom of the threshing section 1 and passes through the bottom of the side tank 6. The upper part of the number screw is covered with a shutter 12 which can be opened and closed. Also,
Reference numeral 13 denotes a vertical conveyance device composed of a conveyance tube 14 erected upward from the terminal end of the first screw, and a screw 15 housed in the tube; 16 is connected to the upper end of the conveyance device and has a tip opening. A grain discharging tube 17 is connected to the upper end of the vertical conveyance device 13 via a connecting tube 18, and the grain discharging tube 17 is opposed to the input port 7a provided on the upper surface of the upper tank at a position near the side tank. A horizontal conveyance device composed of a conveyance tube 19 and a screw 20,
The conveying device is rotatable in a horizontal plane as shown in FIG.
There is a drop port 19a located corresponding to the two input ports 7b and 7c provided on the upper surface of the upper tank on the opposite side of the tank, and a drop port 19b for discharging grains is provided at the tip. It is provided.
Note that the input ports 7b and 7c may be added on the rotation radius line of the drop port 19a of the horizontal conveyance device 17. Here, the ejection cylinder 16,
Connection tube 18 and drop port 19a in the horizontal conveyance device
are equipped with shutters 20, 21, 22, respectively, and each inlet 7 in the upper tank 7
Sensors 23, 24, and 25 are attached to the corresponding positions of a, 7b, and 7c to detect whether or not grains are present at those positions and generate predetermined signals.

Next, to explain its function, first, the side tank 6
Close the shutter 12 at the bottom of the tank and the shutter 21 at the connecting tube 18, open the shutter 20 at the discharge tube 16, and start the work with the tip of the discharge tube facing the input port 7a on the top surface of the upper tank 7. For example, the grains separated and sorted from the harvested grain culm in the threshing section 1 are fed into the side tank 6 through the input port 7a via the first screw 11, the vertical conveyance device 13, and the above-mentioned discharge cylinder 16. The grains will be stored in the However, the tank 6 or the expandable part 8 above it
When the interior is filled with grains, the sensor 23 is activated to detect this, and the ejection tube 1 is then
Close the shutter 20 at 6 and close the connecting tube 18.
When the shutter 21 is opened, the grains sent out from the threshing section are transferred from the vertical conveyance device 13 to the horizontal conveyance device 17 via the connecting tube, and are transferred to the drop port 19a of the conveyance tube 19 and the upper tank 7 in the device. When the vicinity of the input port 7b is filled with grains, the sensor 24 detects this, and the lateral conveyance device 17 is moved into the tank as shown in FIG. If the drop port 19a of the transport tube 19 is made to face the other input port 7c of the upper tank 7 by rotating by a certain angle as shown by the chain line, the grains will be further transferred to the drop port 19.
The grains are input into the upper tank through the input port 7c and the upper side tank 6, and when both tanks are completely filled, the sensor 25 detects this and the storage work is completed. On the other hand, when discharging the grains in the tanks 6 and 7, close the shutter 12 at the bottom of the side tank 6 and the shutter 22 at the drop opening 19a of the horizontal conveyance device 17, and move the conveyance device as shown in chain lines in FIG. If you rotate it approximately 180 degrees as shown in the figure and set it above the conveyance vehicle A that is located on the side of the combine harvester,
The grains are discharged from the bottom of the side tank 6 by the first screw 11, through the vertical conveyance device 13 and the horizontal conveyance device 17, and onto the conveyance vehicle A from the drop port 19b at the tip of the conveyance cylinder of the conveyance device. In that case, some grains will remain in the joint part 7' of the upper tank 7, but this tank can be rotated to a state raised above the side tank 6 by the hydraulic cylinder 10. Therefore, the grains remaining in the corners can be reliably discharged from the bottom of the side tank. In addition, the above-mentioned sensors 23, 2
4 and 25 are used to notify the worker of a predetermined condition with a buzzer or the like, and also control the opening/closing operation of the shutters 12, 20, 21, 22 and the rotating operation of the lateral conveyance device 17 according to the signals from each sensor. It may also be possible to have the process automatically performed in a predetermined order.

As described above, the present invention is equipped with a side tank and an upper tank on the side and above the threshing section, respectively, and is equipped with a vertical conveying device connected to the first screw in the threshing section, and also includes a vertical conveying device connected to the first screw in the threshing section. A drop port is provided at the tip and at a position where grain can be supplied through the grain discharge tube to the side tank at the upper end and each input port provided at several places in the front and back of the upper surface of the upper tank near the tank on the opposite side. The combine is equipped with a horizontal transfer device for loading and unloading, and has a structure in which the upper tank can be rotated from a state placed above the threshing section to a state raised above the side tank. The storage capacity of grains as a whole is increased, making it possible to work continuously for a long time or reduce the number of times of discharge work, which has the effect of improving work efficiency. According to the invention, not only the inside of the side tank but also the upper tank can be reliably filled with grains and can be completely discharged, and each of the above-mentioned conveying devices can be used for both storage and discharge. By being used for both purposes, the structure becomes simple, and furthermore, by providing the grain input ports in the upper tank by the horizontal conveyance device at several positions in the front and back of the upper surface of the tank, the grain input by the horizontal conveyance device becomes easier. Since this can be carried out through each input port, it is possible to eliminate the negative effects of partial storage of grains and make the bottom of the upper tank wide, allowing grains to be stored while minimizing the height of the aircraft. This has the advantage of increasing capacity.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of a combine harvester showing an embodiment of the present invention, and FIG. 2 is a plan view thereof. DESCRIPTION OF SYMBOLS 1... Threshing section, 6... Side tank, 7... Upper tank, 11... First screw, 12... Shutter, 13... Vertical conveyance device, 16... Discharge tube,
17... Horizontal conveyance device.

Claims (1)

[Scope of utility model registration request] A side tank and an upper tank are installed on the side and above the threshing section, and the first screw in the threshing section is passed through the bottom of the side tank, and the upper part of the first screw in the tank is used for grain discharge. A vertical conveying device is connected to the terminal end of the first screw, and a grain discharge tube to the side tank is provided at the terminal end. , A lateral conveyor for grain input and discharge, with a position where grains can be supplied through the input ports provided at several places in the front and back of the upper surface near the tank on the opposite side of the upper tank, and a drop port provided at the tip, respectively. A grain storage device for a combine harvester, characterized in that the device is rotatable, and the upper tank is rotatable from a state placed above the threshing section to a state raised above the side tank. .