JPH023739Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a grain tank for a threshing machine which is attached to the threshing machine and temporarily stores grains sorted after threshing.

Conventionally, this type of grain tank has generally been installed adjacent to the side of the threshing frame, and at the end of the grain transport body installed in the sorting device inside the threshing frame, there is a grain lifting cylinder that stands up. The bottom end is joined. The grains transferred from the grain carrier to the grain lifting cylinder and being lifted and conveyed are discharged into the grain tank from the discharge port at the upper end of the grain lifting cylinder.

In this type of threshing machine, it is desirable to make the grain tank as large as possible in order to reduce the number of grain discharges and increase work efficiency.However, in the conventional grain tank, the space occupied by the grain lifting cylinder is However, because the tank capacity was reduced, it was not possible to secure a satisfactory capacity, and in the case of a tank formed around a grain lifting cylinder, maintenance of the threshing machine itself was difficult.

The present invention was developed in view of the above points, and includes an auxiliary tank that encloses the upper part of the grain lifting cylinder and extends from the main tank above the threshing machine body, and the main tank is detachably formed in relation to this auxiliary tank. By doing so,
To provide a grain tank for a threshing machine which increases the tank capacity to improve work efficiency and also facilitates maintenance of the threshing machine body. Embodiments of the present invention will be described in detail below with reference to the drawings.

1 to 5 show an embodiment of the grain tank according to the present invention, FIG. 1 is a schematic side view of a combine harvester in which this is implemented, FIG. 2 is a front view, and FIG.
The figure is a perspective view of the vicinity of the grain tank, FIG. 4 is a vertical cross-sectional view of the main part of the grain tank, and FIG. 5 is a cross-sectional view of the main part of the grain tank. In the figure, a threshing machine 4 equipped with a threshing device and a sorting device is mounted on a traveling frame 3 that supports left and right traveling crawlers 2 of a combine harvester 1, and in front of the threshing machine 4 is mounted a part for separating grain culms in the field. A reaper including a grass body 5, a pulling device (not shown), a cutting blade, a conveying device, etc. is provided. Further, on the side of the reaper, a driver's seat 6 where a driver is seated, and an operating device 7 including various operating levers, gauges, etc. are arranged in the front and rear. Reference numeral 8 denotes a waste straw processing device that is installed continuously behind the threshing machine 4 and cuts the threshed grain culms, that is, waste straw, or collects the threshed grain into predetermined amounts and releases them into the field. At the bottom of the threshing machine 4, there is a screw-shaped grain conveying body 9 that conveys the grains sorted after threshing from the back side of the paper toward the front side as shown in FIG. The grain lifting cylinder 10 is mounted on a shaft in a protruding manner, and has a screw-shaped conveying body stored therein and lifts and conveys the grain taken over from the grain conveying body 9.
It is supported by the thresher 4 side and stands upright.

The one designated as a whole by reference numeral 11 is a grain tank for storing grains which are lifted up and conveyed by a grain lifting cylinder 10 and then discharged from the upper end discharge port, and is a main tank 12.
and the sub-tank 13 and auxiliary tank 1 on its left and right.
It consists of 4. Among these, the main tank 12 is formed in the shape of a rectangular parallelepiped box, and a discharge box 15 also in the shape of a rectangular parallelepiped box is joined to the lower end opening of the main tank 12 and integrally formed therein, and is placed on the traveling frame 3 and equipped with a fixing device. It is removably fixed to the traveling frame 3, and is also removably provided to the auxiliary tank 14. That is, the auxiliary tank 14 is formed into a box shape with a slightly narrower width than the main tank 12, and has an inclined bottom surface, and the upper part of the grain lifting cylinder 10 is inserted through a hole bored in this inclined surface. In addition, the fried grain cylinder 10
The upper end outlet of is opened in the auxiliary tank 14. The inclined surface of the auxiliary tank 14 and the welded fixed plate 16 of the grain lifting cylinder 10 are fixed by bolts 17, so that the auxiliary tank 14 is connected to the threshing machine 4 side via the grain lifting cylinder 10. It is strongly supported. The auxiliary tank 14 and the main tank 12, which are supported on the aircraft side in this way, are joined at their fully open opposing surfaces, and are removably fastened at the flange portion by bolts 18. It is removably fixed to the traveling frame 3 using a fixed fixture. By doing this, the main tank 12 can be used as the auxiliary tank 14 during normal times.
It is fixed to the running frame 3, and is configured so that it can be slid on the running frame 3 and moved laterally as shown by the chain line in FIG. ing. A carrier 19, which is longer than the main tank 12, is pivotally supported on the side edge of the traveling frame 3 so that it can be raised and lowered so that it can rotate in the direction of the arrow between the solid line and the chain line in FIG. This carrier 19 serves as a storage place for paddy bags, which will be described later, and also serves as a storage area for the main tank 12.
It is configured so that it can be moved above this. The auxiliary tank 13 is formed into a box shape with a downwardly inclined surface and is attached to the main tank 12 by a hinge 20.
2 and 13 are in communication with each other, and each side of the sub tank 13 is separated from the other by operating the knob 21, so that the side of the main tank 12 is completely opened. The reference numeral 22 is a discharge port equipped with a shutter 23 that can be opened and closed, and is connected to the sub tank 1.
3, and is configured such that when the shutter 23 is opened, the grains in the sub tank 13 are discharged into a paddy bag suspended from hanging rods 24 projecting on both sides thereof. Further, the discharge box 15 is also provided with a discharge port 26 having a shutter 25.

The grain tank 11 configured in this manner is provided with a grain discharge device that discharges the grains inside the tank to the outside of the machine. That is, at the rear of the main tank 12, a lower cylindrical body 27 stands upright with its upper part fixed to the side plate with a fixing fitting 28, and its lower part is supported by a bearing 29 fixed to the discharge box 15. It is strongly supported. A screw-shaped carrier is supported through the lower cylinder 27, and a bearing 29 is provided.
A screw-shaped conveying body is similarly supported by the bearing on the opposite side and extends horizontally within the discharge box 15, and both of these conveying bodies are rotationally driven by a belt 30 from the driving side. An upper cylinder 33 is connected to a horizontal opening 32 of an L-shaped joint tube 31 rotatably connected to the upper end of the lower cylinder 27 so as to be able to rise and fall. Joint pipe 31 and upper cylinder body 33
A screw-shaped conveyor is also pivotally supported inside.
It is sequentially drivingly connected to the conveying body in the lower cylinder 37 by a bevel gear. Reference numeral 34 denotes a discharge tube that is attached to the tip of the upper cylinder 33 and discharges the grains conveyed by the conveyors in the respective cylinders 27, 31, and 32.
Further, 35 is a tension spring that urges the upper cylinder 33 in both the upright and collapsed positions, and 36 is a tension spring that connects the joint pipe 31 and the upper cylinder 33 to support the upper cylinder 33. It is a connecting stay that strengthens the

In the combine configured as above,
Grain culms harvested by the reaper and supplied to the threshing machine 4 are threshed by a threshing device, and the threshed grains are sorted by a sorting device and fall onto a conveyor at the bottom of the threshing machine 4. After falling, the grains transported by the transport body are taken over by the transport body in the grain lifting cylinder 10 at the end of the transport, lifted up and transported, and discharged into the auxiliary tank 14 from the discharge port at the upper end. This grain slides on the slope of the auxiliary tank 14, falls into the main tank 12, and is stored therein, but as the grain increases, it is also stored in the auxiliary tank 13 and the auxiliary tank 14. When the storage amount reaches a predetermined amount, the machine is stopped, for example, next to the loading platform of a truck, the upper cylinder 33 is erected and the discharge tube 34 is opposed to the loading platform, and the rotation of the driving side is stopped by the belt 30. When this is transmitted, the carrier at the bottom of the grain tank 11 and the carriers in each of the cylindrical bodies 37, 31, and 33 rotate. Therefore, the grains are conveyed rearward along the bottom of the tank 11, lifted up and conveyed in sequence within the lower cylinder 27 and the upper cylinder 33, and are discharged from the discharge tube 34 onto the loading platform. After discharging, the upper cylinder 33 is laid down and stored along the upper surface of the tank 11, and then the harvesting work is resumed or the harvesting operation is shifted to on-road driving.

When part of the grain in the grain tank 11 is to be packed into bags, a paddy bag is suspended from the hanging rod 24 and attached to the discharge port 22, and the carrier 19 is laid down horizontally to bag the paddy bag. After being supported, the shutter 23 is opened to discharge the grains into the paddy bag.

Next, when performing maintenance, cleaning, etc. on the threshing machine 4, loosen the bolt 18 at the joint between the main tank 12 and the auxiliary tank 14 to separate both tanks 12 and 14, and place them onto the carrier 19 that has been laid down. Move the main tank 12. In this case, the grain discharging device, its driving device, and the auxiliary tank 13 also move together, and only the auxiliary tank 14 remains on the threshing machine 4 side with the grain lifting cylinder 10 contained therein. By doing this, the sides of the threshing machine 4 are completely opened, making maintenance, cleaning, etc. easier. In particular, the transmission device of the threshing machine 4 is disposed below the auxiliary tank 14, and since this can be completely opened by moving the tank, maintenance thereof is easy. In addition, by providing the auxiliary tank 14, the capacity of the entire grain tank 11 is increased, and furthermore, the grain lifting cylinder 10 is fixed to the machine base while being contained in the auxiliary tank 14, and the tanks can be connected to each other. Since both tanks 12 and 14 can be attached and detached, attachment and detachment are easy.

As is clear from the above explanation, in the threshing machine according to the present invention, an auxiliary tank 14 is provided which encloses the upper part of the grain lifting cylinder 10 and extends from the main tank 12 above the main body of the threshing machine 4. Main tank 1
2 is removable, the overall capacity of the grain tank 11 increases, reducing the number of grain discharges and improving work efficiency. By connecting the tanks to each other, the main tank 12 can be used as an auxiliary tank. Since both tanks 12 and 14 can be detached and separated, the sides of the threshing machine 4 can be completely opened through easy attachment and detachment, allowing maintenance of transmission equipment, etc.
Cleaning becomes extremely easy, improving the durability of the threshing machine and reducing labor.

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment of a grain tank for a threshing machine according to the present invention, Figure 1 is a schematic side view of a combine in which this is implemented, Figure 2 is a front view, and Figure 3 is a Similarly, a perspective view of the vicinity of the grain tank,
FIG. 4 is a longitudinal cross-sectional view of the main part of the grain tank, and FIG. 5 is a cross-sectional view of the same. 4...Thresher, 10...Grain lifting cylinder, 11...Grain tank, 12...Main tank, 14...Auxiliary tank.

Claims (1)

[Scope of utility model registration request] A grain tank for a threshing machine, characterized in that an auxiliary tank encloses the upper part of a grain lifting cylinder and extends from the main tank above the threshing machine body, and the main tank is detachably attached to the auxiliary tank.