JPH02145128A - Grain-discharge unit of grain tank - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a grain discharge device for a grain tank that stores grains for a threshing machine.

[Prior art and problems]

Conventionally, in this type of grain discharge device for grain tanks, the grains in the tank are transported to one side by a horizontal screw conveyor installed at the bottom of the tank, and then lifted and transported by a vertical screw conveyor to the outside. Generally, it is discharged.

However, when the grain stored in the tank is soybean, there is a problem in that when the grain is transported by a screw conveyor, many damaged grains or crushed grains occur, leading to a decrease in quality.

The present invention aims to solve the above-mentioned problems by reducing the number of transport steps by the screw conveyor as much as possible and using a bucket conveyor when the grain stored in the tank is soybeans.

[Means to solve the problem]

Therefore, the present invention has taken the following technical measures.

That is, the grain discharge device of the grain tank according to the present invention carries out the grains stored in the tank to one side by the horizontal screw conveyor 3 provided at the bottom, and lifts and conveys the grains by the vertical screw conveyor 4. In a grain tank configured to be discharged outside the machine, the grain tank includes a means for blocking the grain from flowing down to the horizontal screw conveyor 3, and a means for lifting and transporting the grain stored therein to transport the grain to the vertical direction. It is characterized in that a bucket conveyor 7 is provided above the screw conveyor 4 for feeding.

[Effect]

If the grain stored in the tank is rice or wheat, it is transported to one side by a horizontal screw conveyor at the bottom of the tank, lifted up and transported by a vertical screw conveyor, and discharged to the outside.

If the grain stored in the tank is soybeans, the grain is lifted and conveyed by a bucket conveyor and fed to a part of the vertical screw conveyor without passing through the horizontal screw conveyor at the bottom of the tank.

〔Effect of the invention〕

Therefore, according to the present invention, when the grain stored in the tank is soybean, it can be transported via a bucket conveyor, so that damaged grains and The occurrence of crushed grains is extremely reduced, and high-quality soybeans are discharged to the outside.

〔Example〕

An embodiment of the present invention will be described below based on the drawings.

Reference numeral 1 denotes a grain tank, which is disposed on the side of the threshing section A of the combine harvester, and grain from the threshing section A is supplied via the grain lifting device 2 and stored therein.

Reference numeral 3 denotes a horizontal screw conveyor horizontally mounted on the bottom of the tank, and reference numeral 4 denotes a vertical screw conveyor vertically installed on one side of the grain tank 1. It is configured to receive the grains, lift and convey them, and discharge them via a discharge screw conveyor 5 that can be raised and lowered as well as rotated.

Above the horizontal screw conveyor 3, the conveyor 3
A shutoff plate 6 that can be opened and closed as a means of blocking grain inflow to the
is provided. The blocking plate 6 may be configured to be freely inserted and removed, or may be configured to swing open and close.

7 is a bucket conveyor equipped with packets 8 set upright in the grain tank 1, which receives the soybeans stored on the shielding plate 6 through an intake port 9, scoops up the soybeans with the packets 8, lifts them up and conveys them, and transfers them to a discharge port. 10 and a hopper 11 provided in communication with the upper part of the vertical screw conveyor 4.
It is configured such that the liquid is fed to the storage area and discharged to the outside via a discharge screw conveyor 5. Furthermore, as shown in Figure 3,
It is also possible to adopt a method in which the discharge screw conveyor 5 is removed and the soybeans are rolled and discharged to the outside using only the discharge tube 5a.

The threshing section A has the following configuration. That is, in the figure, 12 is a handling cylinder, 13 is a heater, 14 is a grain sieve,
15 is a stroke rack, 16 is a winch, 17 is a No. 1 receiving gutter equipped with a No. 1 conveyor 17a, and 18 is a #2 conveyor 18.
This is the second gutter equipped with a.

A sorting belt 19 is installed between the first receiving gutter 17 and the second receiving gutter 18.
is provided in an inclined state and mounted on an axis so that it can be rotated.

This sorting belt 19 is configured to be rotationally driven from the shaft of the 1# conveyor 17a via a power transmission chino 20, a clutch is interposed between the two, and the sorting belt 19 is driven by operating a switching lever 21. and a stopped state.

The sorting belt 19 is configured so that its upper end can be swung up and down with its lower end as a fulcrum, and a rod 22 fixedly attached to the machine body is used to swing the grain sheave 14 and the stroke rack 15. Swinging mechanism 2
By changing the position to the swing arm 23a of No. 3, this rod 22 is configured to reciprocate downward and swing the sorting belt 19. By changing the attachment position of the rod 22 with respect to the swing arm 23a, the swing width of the sorting belt 19 can be changed or adjusted as desired depending on the type of objects to be sorted.

When the sorting belt 19 is rotated and oscillated, the separation effect on the sorting belt is increased, the number of particles carried into the second belt is reduced, foreign particles such as dirt particles and deviations are eliminated, and a highly accurate sorting effect is achieved. can get.

In addition, for grains other than soybeans, such as buckwheat and wheat, which are not round in shape, if the sorting belt is rotatably driven, the number of grains that are carried into the second bin tends to increase, causing more damage. By stopping the rotational drive and using only rocking, the grains on the sorting belt are sorted by the winnowing wind and vibrations and roll down into the No. 1 receiving trough, and high-quality grains are collected.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention; Fig. 1 is a side view of a grain tank, Fig. 2 is a rear view, Fig. 3 is a side view of a part of another embodiment, and Fig. 4 is a threshing tank. FIG. 5 is a cutaway side view of part of the section, and FIG. 5 is a transmission diagram of the sorting belt. 1 is a grain tank, 3 is a horizontal screw conveyor, 4 is a vertical screw conveyor, 5 is a discharge screw conveyor, 6 is a blocking plate, 7 is a bucket conveyor, and 11 is a hopper.

Claims (1)

[Claims] (1) A grain tank configured so that the grain stored in the tank is transported to one side by a horizontal screw conveyor 3 provided at the bottom, lifted up by a vertical screw conveyor 4, and discharged outside the machine. In this grain tank, a means for blocking the flow of grain to the horizontal screw conveyor 3 and a bucket conveyor 7 for lifting and transporting the grain stored therein and feeding it to the upper part of the vertical screw conveyor 4 are installed. A grain discharge device for a grain tank characterized by being equipped with.