JPS6138436Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention includes, for example, a reaping section and a threshing section, which continuously reaps and threshes grain culms, stores the grains taken out from the threshing section in a paddy tank, and stores the grains in a paddy tank. The present invention relates to a combine harvester in which, when the paddy tank is filled, the combine is moved to the edge of the paddy tank and the grains in the paddy tank are carried out to a loading platform of a truck or the like. Conventionally, as shown in Japanese Utility Model Application Publication No. 53-3856 and Japanese Utility Model Application Publication No. 53-103856, there has been a technique of supplying pressurized air into a paddy tank to dry the inside thereof.

However, in the above-mentioned conventional technology, the pressure air escapes in the direction in which paddy is put into the tank and sends out the dust in the tank, which causes straw and dust to adhere to the grain frying screw, etc. There were problems such as hindering transportation and making it easy for paddy to become clogged.

However, the present invention is configured such that a blowing fan is provided in a paddy tank for storing grains, and the pressure air of the fan is blown from the sloped upper end of the grain flow board at the bottom of the rice tank toward the sloped lower end. The present invention is characterized in that a door is provided that closes a paddy input port opened inside the paddy tank when a blower fan is driven, and power disconnection of the blower fan and opening/closing of the paddy input port of the door are interlocked.

Therefore, by blowing the pressure air of the fan from the sloped upper end of the flow grain plate at the bottom of the paddy tank toward the slope lower end, the grains can be sent out by the pressure air of the fan, so that the grains on the flow grain board are The angle of repose can be formed gently, the storage capacity of the paddy tank can be expanded, and the inside of the paddy tank can be dried by the pressure air of the fan, thereby preventing grains and dust from adhering to the inside of the paddy tank. In particular, since the paddy inlet is closed by the door while the fan is being driven, even if straw and dust fly up above the tank, it can be prevented from entering the paddy inlet, and the tank can be prevented from entering the paddy inlet. It is possible to prevent straw waste and dust from adhering to the fried grain screw inside the paddy input port and obstructing the subsequent transport of paddy or clogging the paddy, and it has a simpler and more functional structure than the conventional one. It can be handled safely with proper operation.

An embodiment of the present invention will be described in detail below with reference to the drawings. Fig. 1 is a side view of the combine harvester, and Fig. 2 is a plan view of the same.
3 is the rotation fulcrum shaft 4
and a machine base which is rotatably attached to the track frame 1 via an elevating cylinder 5; 6 is a threshing section with a feed chain 7 stretched on the left side and a handling cylinder 8 built therein; 9 is a cutting blade 10 and a grain culm conveyor. A reaping section equipped with a mechanism 11, 12 a driver's cab equipped with a driver's seat 13 and a driving operation section 14, and 15 a paddy tank in which a grain lifting cylinder 16 for taking out grains from the threshing section 6 faces and stores the grains. A tank 17 is an engine that drives each part of the combine harvester, and is configured to continuously harvest and thresh grain culms and store the threshed grains in a paddy tank.

As shown in FIGS. 3 and 4, the paddy tank 1
At the bottom of the grain discharge conveyor 18 in this left and right direction
An umbrella-shaped falling plate 19 is installed on the upper part of the conveyor 18, and a front bulge 15a formed on the front side of the paddy tank 15 is made to protrude below the driver's seat 13, and the bottom of the paddy tank 15 is Grain board 20 that constitutes
is stretched between the conveyor 18 and the bulging portion 15a, and the conveyor 18 is positioned close to the rotation fulcrum shaft 4 of the machine base 3, and the machine base 3 is raised by the lifting cylinder 5. At this time, the inclination angle A of the flow grain plate 20 is formed to be larger than the angle of inclination of the grain.

Further, a grain discharge port 21 is provided outside the lower part of the paddy tank 15, and the feed end side of the conveyor 18 faces the discharge port 21.
An end face type shutter 22 for opening and closing 1 is rotatably attached to the lower edge of the outlet 21 via a hinge member 23, and a conveyor belt 24, which is suspended on a truck bed or the like, is extended below the outlet 21. When the shutter 22 is opened, the grains delivered from the discharge port 21 by the conveyor 18 are transferred to the belt conveyor 2 by the shutter 22.
4 so as to guide the flow downward.

Furthermore, the front bulge 15a of the paddy tank 15
A cross-flow fan type ventilation fan 25 is installed inside the fan 25 , the fan 25 is surrounded by a ventilation guide plate 26 , the ventilation port 27 of the fan 25 is opened at the inclined upper end of the grain flow board 20 , and the fan 25 is surrounded by a ventilation guide plate 26 . Intake port 28
is opened on the upper surface of the front bulging portion 15a, and the pressure air of the fan 25 is blown from the sloped upper end of the grain flow board 20 at the bottom of the paddy tank 15 toward the sloped lower end, and the grains on the upper surface of the flow grain board 20 are conveyed. It is formed so that it is forced to flow down in 18 directions and dehumidifies the inside of the paddy tank 15.

Next, a side lid 30 is provided on the outside of the paddy tank 15, with its lower end pivotally connected via a hinge 29, and a vinyl sheet 31 is stretched between the upper edge and both side edges of the lid 30 and the paddy tank 15, so that the paddy tank 15 can be closed when not in use. folds the sheet 31 and closes the side cover 30, while closing the side cover 30 during use.
It is formed so as to expand the capacity of the paddy tank 15 by opening it. Further, a side bulging part 15b is formed at the inner upper part of the paddy tank 15 facing the side lid 30, and the upper part of the grain lifting cylinder 16 which is erected between the threshing part 6 and the paddy tank 15 is formed with a lateral bulging part 15b. At the same time, input/output counter pulleys 34, 35, and 36 are coaxially supported via a bracket 33 on the grain lifting cylinder 16 below the bulging part 15b, and the output of the engine 17 is adjusted. An input counter pulley 34 is connected to the pulley 37 via a V-belt 38. A tension roller 40 is provided between the drive pulley 39 of the conveyor 18 and the output counter pulley 35.
A V-belt 41 is stretched across the grain discharge lever 42, and a tension arm 44 supporting the roller 40 is connected to the grain discharge lever 42 via a wire 43.
A V-belt 47 is stretched between the drive pulley 45 of the blower fan 25 and the output counter pulley 36 via a tension roller 46, and the blower lever 48
A tension arm 50 supporting the roller 46 is connected to the roller 46 via a wire 49. Furthermore, the paddy inlet 51 at the upper end of the grain lifting cylinder 16 is connected to the paddy tank 15.
A door 52 is provided which opens at the highest position of the paddy input port 51 and opens and closes the paddy input port 51.
A link 53 integrally formed with the ventilation lever 48
is connected to the lever 48 via a wire 54.
The door 52 is configured to close the paddy input port 51 at the same time as the blowing fan 25 is driven by the operation. The aforementioned grain ejection lever 42
In addition, a ventilation lever 48 is installed between the driver's cab 12 and the front side of the paddy tank 15 as shown in FIG.

The present invention is constructed as described above, and when grain culms are continuously harvested and threshed, the grain discharge conveyor 1
8 and the ventilation fan 25 are stopped, and the grain discharge port 2 is stopped.
1 is closed by the shutter 22, the door 52 is opened to open the paddy input port 51, the side cover 30 is opened to expand the capacity of the paddy tank 15, and the threshing section 6 is opened via the hoisting cylinder 16. The grains taken out from the paddy tank 15 are stored in the paddy tank 15.

Then, when the paddy tank 15 is filled with grains,
Reaping and threshing operations are interrupted, and the combine harvester is moved to the edge of the ridge and closer to the trucks that transport the grain. At this time, the front part of the machine stand 3 is raised by the cylinder 5 about the rotational fulcrum shaft 4, and the reaping part 9 is lifted.
The angle of inclination A at 0 is greater than the angle of repose of the grain.
Also, the feed start end of the conveyor belt conveyor 24, which is suspended on a truck bed or the like, is made to face the lower part of the grain discharge port 21, and the shutter 22 is opened so that the grain discharge port 21
The shutter 22 is tilted and suspended between the conveyor 24 and the grain discharge lever 42 is operated to drive the grain discharge conveyor 18, and the grains in the paddy tank 15 are removed by each conveyor 18,24. Have it removed. Next, when the amount of grains remaining inside the paddy tank 15 decreases, the ventilation fan 25 is driven by operating the ventilation lever 48, and at the same time, the paddy input port 51 is closed by the door 52, and the grains are placed on the upper surface of the grain distribution plate 20. The pressure air of the fan 25 blown from the upper end of the slope is discharged to the outside of the paddy tank 15 from the discharge port 21, and the grains remaining on the upper surface of the flow grain board 20 are taken out from the discharge port 21.

As is clear from the above embodiments, the present invention provides a blower fan 25 in the paddy tank 15 for storing grains, and blows the fan 25 from the sloped upper end of the grain flow plate 20 at the bottom of the rice tank 15 toward the sloped lower end. A door 52 is configured to blow pressurized air and closes the paddy input port 51 opened inside the paddy tank 15 when the blower fan 25 is driven, and the power of the blower fan 25 is disconnected and the paddy is inputted by the door 52. The opening and closing of the opening 51 are interlocked, and the pressure air of the fan 25 is blown from the sloped upper end of the grain plate 20 at the bottom of the tank 15 toward the sloped lower end. Since the grains can be sent out, the inclination angle A of the grain flow plate 20 can be formed gently, and the storage capacity of the paddy tank 15 can be expanded.
The interior can be dried, grains and dust can be prevented from adhering to the inside of the paddy tank 15, and maintenance and cleaning of the paddy tank 15 can be easily performed, especially when the fan 25 is being driven. door 52
Since the paddy input port 51 is closed, the tank 15
Even if straw waste, dust, etc. fly upwards, it can be prevented from entering into the paddy input port 51, and the straw waste, dust, etc. in the tank 15 can be prevented from adhering to the fried grain screw, etc. in the paddy input port 51, and then This system has practical effects such as being able to prevent the transport of paddy from being obstructed or clogging the paddy, and has a more functional structure than the conventional one and can be handled safely with simple operation.

[Brief explanation of drawings]

FIG. 1 is a side view of a combine harvester showing an embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a cross-sectional side view of the main part, and FIG. 4 is a front explanatory cross-sectional view of the combine harvester. 15...paddy tank, 20...grain board, 25...
Ventilation fan.

Claims (1)

[Scope of utility model registration request] A ventilation fan 25 is installed in the paddy tank 15 that stores grains.
The fan 25 is configured to blow pressure air from the sloped upper end of the grain board 20 at the bottom of the paddy tank 15 toward the sloped lower end, and a paddy input port 51 opened inside the paddy tank 15 is used to blow air. A grain storage device for a combine harvester, characterized in that a door 52 that closes when a fan 25 is driven is provided, and the power disconnection of the blower fan 25 and the opening and closing of a paddy input port 51 of the door 52 are interlocked.