JPH06276849A - Grain storage part of combine harvester - Google Patents

Abstract

PURPOSE:To speed up discharge of grains from a grain tank in a combine harvester providing a transverse feed screw conveyer on the inner bottom of a grain tank for grain storage, interposing a clutch between an engine and the transverse feed screw conveyer and fitting a pressure receiving plate for reducing load of stored grains onto the transverse feed screw conveyer above the lateral feed screw conveyer in the interior of the grain tank. CONSTITUTION:A pressure receiving plate 14 for reducing load of stored grains onto a traverse feed screw conveyer on grain tank inner bottom is operably installed in a state where the area viewed from the top is changed and automatically pressure-receiving-operable means 17, 18 and 19 for spreading the area of the pressure receiving plate 14 viewed from the top in a stopping state of the transverse feed screw conveyer 7 and contracting the area in driving state of the transverse feed screw conveyer 7 are equipped in engagement with operation of a clutch 13 to the transverse feed screw conveyer 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a transverse feed screw conveyor at the inner bottom of a grain tank for storing degrained grains, and a clutch is provided between the engine and the transverse feed screw conveyor to provide a transverse feed screw for stored grain. The present invention relates to a grain storage unit of a combine, in which a pressure receiving plate that reduces a load on the conveyor is provided inside a Glen tank and above a transverse feed screw conveyor.

[0002]

2. Description of the Related Art Conventionally, the pressure receiving plate has been fixed, and the top view area of the pressure receiving plate has been made considerably large so that the load of the stored grain on the lateral feed screw conveyor can be sufficiently reduced.

[0003]

However, when the grains are discharged from the grain tank, it takes a lot of time to discharge the grains because the pressure receiving plate becomes a resistance against the natural flow of the grains to the horizontal feed screw conveyor. However, this was one of the causes of the decrease in harvesting work efficiency, and there was room for improvement in terms of improving work efficiency. The object of the present invention is to sufficiently reduce the load on the horizontal feed screw conveyor of the stored grain by the pressure receiving plate, while receiving the pressure plate against the natural flow of the grain to the horizontal feeding screw conveyor during the grain discharge from the grain tank. Is not too resistant, and the quick grain discharge from the grain tank can be performed easily and reliably.

[0004]

A feature of the present invention is to provide a horizontal feed screw conveyor at the inner bottom of a grain tank for storing threshed grains, and to install a clutch between the engine and the horizontal feed screw conveyor to store the stored grain. In a combine where a pressure receiving plate that reduces the load on the horizontal feeding screw conveyor is installed above the horizontal feeding screw conveyor inside the Glen tank, the pressure receiving plate is operably attached so that its top view area changes, and the clutch In cooperation with the above operation, there is provided an automatic pressure receiving plate operating means for increasing the top view area of the pressure receiving plate in the stopped state of the horizontal feed screw conveyor and small in the driven state of the horizontal feed screw conveyor.

[0005]

Function: In other words, when the horizontal feed screw conveyor that does not discharge grains from the grain tank is in a stopped state, the area of the pressure receiving plate in the top view is increased, and the load of the stored grains on the horizontal feed screw conveyor is sufficiently reduced by the pressure receiving plate. Yes, and in the driving state of the horizontal feed screw conveyor that discharges grains from the grain tank, the pressure receiving plate reduces the top view area of the pressure feed plate, and the pressure receiving plate has a little resistance to the natural grain flow to the horizontal feed screw conveyor. Without this, the grain discharge from the Glen tank can be completed quickly. Moreover, since the pressure receiving plate automatic operation means automatically changes the top view area of the pressure receiving plate in association with the operation of the clutch, quick grain discharge from the Glen tank can be easily and surely executed.

[0006]

As a result, the load on the lateral feed screw conveyor of the stored grains can be sufficiently reduced by the pressure receiving plate, while the rapid grain discharge from the grain tank can be easily and surely performed, which improves the harvesting work efficiency. In terms of aspect, it has become possible to provide a more excellent combine.

[0007]

EXAMPLES As shown in FIGS. 1 and 2, a mowing section 1, a threshing device 2 for threshing and selecting a grain culm from the mowing section 1,
The grain tank 3 for collecting the first product from the threshing device 2, the screw type unloader 4 for discharging the grains from the grain tank 3, the boarding operation part 5, etc. are mounted on a traveling vehicle body equipped with a crawler type traveling device 6. A self-removing combine is configured. To form the unloader 4, a horizontal feed screw conveyor 7 is provided at the inner bottom portion of the Glen tank 3, a vertical feed screw conveyor 8 is provided in communication with the horizontal feed screw conveyor 7, and between the engine 12 and the horizontal feed screw conveyor 7. Tension type clutch 13 is installed in the horizontal feed screw conveyor 7 and vertical feed screw conveyor 8.
Is configured so that the clutch 13 can be driven and stopped, and the screw conveyor type discharge cylinder 9 for discharging the grains from the vertical feed screw conveyor 8 can be vertically swung by a hydraulic cylinder 10 and the shaft of the vertical feed screw conveyor 8 by a motor 11. It is mounted so that it can be turned and rotated around the core so that the grains from the discharge tube 9 can be loaded into the carrier. A pressure receiving plate 14 that reduces the load of the stored grains on the horizontal feed screw conveyor 7 is provided above the horizontal feed screw conveyor 7 inside the Glen tank 3 to smoothly move the horizontal feed screw conveyor 7 and the vertical feed screw conveyor 8. It is configured to start. The left and right inclined plates 1 are used to form the pressure receiving plate 14.
4a and 14b are separately attached so as to be swingable around a support shaft 15, and a rotary cam 16 for adjusting the angle of both inclined plates 14a and 14b is provided so as to change the top view area of the pressure receiving plate 14, When the grains are not discharged from the tank 3, the area of the pressure receiving plate 14 in the top view can be increased to reduce the load of the stored grains on the lateral feed screw conveyor 7, and when the grains are discharged from the grain tank 3, the pressure can be received. By making the top view area of the plate 14 small, the pressure receiving plate 14 does not become so resistant to the natural flow of the grain to the horizontal feed screw conveyor 7 and the grain discharge from the grain tank 3 can be quickly completed. There is. A sensor 17 for detecting whether the clutch 13 is in the engaged state or the disengaged state is provided, and an electric or hydraulic motor 18 for operating the rotating cam 16 in the forward and reverse directions is provided, and a pressure receiving plate based on information from the sensor 17 A controller 19 for automatically operating the motor 18 is provided so that the top view area of 14 is large when the horizontal feed screw conveyor 7 is stopped and small when the horizontal feed screw conveyor 7 is driven, and is linked to the operation of the clutch 13. Then, the top view area of the pressure receiving plate 14 can be automatically changed.

[Another embodiment] Horizontal feed screw conveyor 7
The type of the clutch 13 that stops driving can be changed appropriately. The specific configuration of the pressure receiving plate 14 and the top view area changing mode can be appropriately selected. For example, as shown in FIG. 3, the pressure receiving plate 14 made of one plate is attached so as to be able to rotate forward and backward by the motor 18 around the support shaft 20. Based on the information from the sensor 17, the controller 19 controls the motor 18 so as to make the top view area of the pressure receiving plate 14 large when the horizontal feed screw conveyor 7 is stopped and small when the horizontal feed screw conveyor 7 is driven. It may be configured to be automatically operated. In short, pressure plate 1
It suffices that 4 is operably attached in a state in which the area viewed from above changes. The pressure receiving plate 1 is linked to the operation of the clutch 13.
The specific linkage structure for increasing the top view area of No. 4 when the horizontal feed screw conveyor 7 is stopped and small when the horizontal feed screw conveyor 7 is driven can be appropriately selected. Collectively referred to as 17, 18, and 19.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 Side view of combine

FIG. 2 is a front view showing a schematic configuration of a main part.

FIG. 3 is a front view showing a schematic configuration of a main part of another embodiment.

[Explanation of symbols]

 3 Glen tank 7 Horizontal feed screw conveyor 12 Engine 13 Clutch 14 Pressure receiving plate 17, 18, 19 Pressure receiving plate automatic operation means

Claims (1)

[Claims] 1. A horizontal feed screw conveyor (7) is provided at the inner bottom of a grain storage grain tank (3), and a clutch (13) is interposed between an engine (12) and the horizontal feed screw conveyor (7). The pressure receiving plate (1) for reducing the load of the stored grain on the lateral feed screw conveyor (7).
4) In a combine provided inside the Glen tank (3) above the transverse feed screw conveyor (7), the pressure receiving plate (14) is operably attached in a state in which a top view area is changed, In cooperation with the operation of the clutch (13), the area of the pressure receiving plate (14) viewed from above is increased when the lateral feed screw conveyor (7) is stopped and is decreased when the lateral feed screw conveyor (7) is driven. The grain storage part of the combine provided with the pressure receiving plate automatic operating means (17, 18, 19).