JPS6225002B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a threshing device that threshes grain while moving it within a handling chamber using spiral handling teeth.

As is well known, in rice and wheat, grains are concentrated and attached to the tip of the ear, so in threshing equipment such as power threshing machines and automatic threshing machines,
It has become common practice to feed only the tip of the grain into a handling chamber for threshing. However, in crops such as soybeans, buckwheat, and rapeseed, the position of the pod (grain) attached to the stem culm is not constant like in rice and wheat, and even when the same crop is harvested in the same field. The attachment positions of the pods vary from top to bottom, and even within a single crop, the moisture status and ripeness of the pods and grains vary depending on the attachment position, such as the upper or lower part of the stem culm.
It was difficult to use the threshing equipment for rice and wheat as is. In other words, when threshing soybeans, buckwheat, rapeseed, etc. using a threshing machine for rice and wheat, there is a large amount of unhandled residue on the stock side of the stem culm, and in the case of a power threshing machine, the residence time in the handling chamber is shortened. If it is too short, the husks will be discharged unthreshed and there will be a lot of loss, so it is necessary to use a threshing method that closes the culm board etc. and lengthens the residence time in the handling room.
As continuous threshing work cannot be performed, work efficiency will be significantly reduced.

In addition, there are also known threshers and ordinary combine harvesters that throw the whole amount of grain to be threshed, including the stem culm, into a handling chamber, but compared to general threshing equipment, these machines have both a threshing section and a sorting section. There were problems such as large size, heavy weight, and a lot of loss. Therefore,
At present, there is no threshing device suitable for threshing all crops other than rice and wheat.

Furthermore, a threshing machine (device) having a handling barrel constructed by continuously winding spiral handling teeth (handling tooth band) around the outer circumferential surface of a rotating cylindrical body from one end to the other was disclosed in Utility Model Publication No. 31-12447. It is known from the publication No. The spiral handling teeth (handling tooth belt part) of this handling barrel have a large number of perforations, and compared to conventional handling teeth, they can be easily attached to the handling barrel and have increased strength. It increases the conductivity of the rod and effectively performs the threshing action through perforation, and nothing has been disclosed about its relationship with the receiving net, the flow of the threshed grain in the handling room, the relationship with the sorting section, etc. However, as it is, it cannot be applied to full-scale threshing using a threshing machine or a combine harvester.

The present invention has been made in view of the above-mentioned circumstances, and provides a threshing device having a threshing cylinder configured by winding spiral handling teeth around the outer periphery, in which a threshing gap is provided between the helical handling teeth and the periphery of the handling cylinder. A handling room is constructed by opening the opening and stretching a receiving net, and a grain supply port is provided at one end in the axial direction of this handling room, and the entire amount of the supplied grain to be threshed is transferred to the handling room and other places by rotation of the handling drum. The grains are threshed while being moved to the end side, and the threshed grains are allowed to leak downward from the receiving net, and the other end of the handling chamber is opened, and the handling barrel is moved to the end of the receiving net at the open end side of the handling chamber. By projecting outward from the culm and discharging the threshed culm moving inside the handling chamber to the outside from the open end of the handling chamber, pods and grains are attached to each position of the culm. The whole crop is fed to one end of the handling room and threshed while moving to the other end, and the threshed grains are dropped from the receiving net in the handling room, and the stalks, stems, and leaves are threshed. is discharged to the outside from the other end of the handling chamber, and all the grains to be threshed, including rice and wheat, can be threshed continuously.The work efficiency is high, and the machine is compact while being able to thresh the entire amount of grain. The present invention aims to provide an unprecedented threshing device that can be configured.

Hereinafter, one embodiment of the present invention will be specifically described with reference to the drawings.

In the figure, reference numeral 1 denotes a cylindrical handling chamber provided in the horizontal direction, and a receiving net 2 is stretched over approximately the lower half of the circumferential surface of the handling chamber. One side of this handling chamber 1 (the left side in the drawing) is closed, and the other side is open, and a supply hopper 3, which is a supply port for grain to be threshed, is provided at the top of the one end (closed side). The end side is covered with an upper cover 4. Such a handling room 1
Inside, a handling cylinder 5 is installed so as to rotate in the direction of the arrow by pivoting on a handling cylinder shaft 5a. It protrudes slightly from the top. On the outer peripheral surface of the handling barrel 5, handling teeth 6 made of a spiral body are wound and attached at a predetermined pitch. The handling teeth 6 have a predetermined threshing gap between the receiving net 2 of the handling chamber 1 and the inner peripheral surface of the upper cover 4, and transfer the threshed grain A supplied from the supply hopper 3 to the receiving net 5. By rotation, the handling teeth 6 and the receiving net 2
While moving from one end of the handling chamber 1 to the other end along the spiral groove formed by the inner circumferential surface of the handling chamber 1 containing This function is to transfer the threshed culms such as culms to the other end of the handling chamber 1 and discharge them to the outside.

The shape, height, pitch, etc. of the handling teeth 6 can be changed as appropriate depending on the type of grain to be threshed A, and the shape is not limited to a continuous shape, but may be other shapes. Furthermore, the receiving net 2 can be replaced with one having a different mesh, the upper cover 4 can be opened and closed, and the supply hopper 3 can be installed not only at the upper part of the handling room 1 but also at other positions. It is.

A sorting room (not shown) is provided below the handling room 1 of this threshing device.

In the threshing device having such a configuration, the handling cylinder 5
is rotated at a predetermined number of rotations, and from the supply hopper 3,
For example, when crops such as soybeans, buckwheat, and rapeseed are harvested in the field and the entire amount of threshed grain A with pods and grains attached to the stem culm is input and supplied into the handling room 1,
The threshed grains A are moved in the axial direction on the receiving net 2 in the handling room 1 by the handling teeth 6 and are subjected to threshing action due to friction with the receiving net 2, and the threshed grains B such as threshed grains are ,
The receiving net 2 is passed through and brought to the sorting room where it is sorted, and the threshed culms, culms and leaves a, are discharged to the outside from the open end of the handling room 1 by the feeding action of the handling teeth 6.

In this case, in a crop where the threshed grain A is dry, that is, in a crop with good threshing conditions, most of the threshed grain is threshed in the area close to the supply hopper 3, but in a crop where the degree of dryness is poor and the threshing conditions are poor, It takes a long time to complete threshing, but in the device of the present invention, the threshing action is performed continuously over a long period of time while sequentially transferring the grain from the supply side to the discharge side of the handling chamber 1 by spiral feeding. Threshing A in room 1
The residence time of grain is increased, improving work efficiency compared to conventional threshing equipment, threshers, ordinary combine harvesters, etc., and the amount of unhandled grain is significantly reduced. Furthermore, if the handling teeth 6, receiving net 2, etc. are appropriately selected depending on the type and conditions of the grain to be threshed A, better threshing work can be performed. Furthermore, it goes without saying that rice and wheat can also be threshed in the same way.

As described above, according to the threshing device of the present invention, a handling barrel having spiral handling teeth on the outer periphery is mounted on a shaft in a handling chamber in which a receiving net is stretched, and the threshed grains supplied to one end of the handling chamber are The grain is threshed while being moved to the other end of the handling chamber by the handling barrel.
The threshed grains leak through the receiving net, and the threshed culms are discharged to the outside from the other end of the handling chamber, so that the threshed grain A is fed into the handling chamber 1 by the feeding action of the spiral handling teeth 6. The threshing action is caused by the friction with the surrounding surface, especially the receiving net 2, which enables continuous threshing work and long-term residence in the handling room 1, allowing not only rice and wheat, but also soybeans,
The threshing operation of supplying and threshing the entire amount of crops such as buckwheat, rapeseed, etc. in which pods and grains are attached to unspecified positions on the stem culm can be carried out efficiently and accurately. Moreover, despite the fact that the entire amount of grain to be threshed can be supplied to the handling room for threshing,
It can be constructed to be smaller and lighter than the threshing section of conventional threshers and ordinary combine harvesters. Further, since the open end portion of the handling chamber of the handling barrel slightly protrudes from the handling chamber, the threshing culm can be reliably discharged to the outside of the handling chamber, and no clogging occurs.

[Brief explanation of the drawing]

The drawing is a schematic side view showing an embodiment of the present invention. 1...handling room, 2...reception net, 3...supply hopper,
4... Upper cover, 5... Handling cylinder, 6... Spiral handling teeth, A... Grain to be threshed, B... Threshing of grains etc.
a... Threshing culm (stem culm/stem leaves).

Claims (1)

[Scope of Claims] 1. A threshing device having a threshing drum configured by winding spiral handling teeth around the outer periphery, in which a receiving net is stretched around the handling drum with a threshing gap between the spiral handling teeth and the threshing gap. A grain supply port is provided at one end in the axial direction of the handling chamber, and the entire amount of the supplied grain is threshed while being moved to the other end of the handling chamber by rotation of the handling drum. Then, the threshed grains are allowed to leak downward from the receiving net, the other end of the handling chamber is opened, and the handling barrel is made to protrude outward from the end of the receiving net at the open end of the handling chamber. ,
A threshing device characterized in that the threshing culm being moved within the handling chamber is discharged to the outside from the open end of the handling chamber.