JPH0214361Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention relates to the handling cylinder of a screw-type threshing machine, and more specifically, to an improvement of a screw-type threshing machine in which the handling cylinder is equipped with a supply blade.

(Prior art) The diameter of the screw auger, which was originally used to convey grain in the axial direction, was expanded and a predetermined rotational speed was applied to the screw blade to maintain the circumferential speed necessary for the crops. In addition to the function of transporting crops, it also has a threshing function.

Also, at this time, if you change the receiving gutter part of the screw auger to a receiving net of an appropriate size for the crops, the grains threshed in the handling chamber will leak downward from the receiving net, and the stems and straw waste will be removed from the culm. It also has a so-called sorting function that transports it in the axial direction and discharges it outside the machine.

This is a screw-type threshing machine. Unexamined Japanese Patent Publication 1983-
The one disclosed in Publication No. 165710 is one example.

The screw-type threshing machine as described above had two supply vanes and one screw at the front of the handling barrel.

(Problem that the invention aims to solve) Unlike conventional methods, there are two supply blades and one screw.
In the case of books, a phenomenon occurred in which the supplied crops got stuck at the entrance of the handling room when being sent.

As a result, the threshing function deteriorated and it was not possible to improve the threshing capacity.

To solve this problem, connecting the two feed blades with different screw winding starts will double the screws, speeding up the movement of crops, and preventing leakage from under the screen even when the entire crop is loaded into the handling barrel. Because of the small amount, the sorting auger could not effectively carry out sorting.

(Means for solving the problem) Therefore, the technical problem of this project is to create a screw-type threshing machine that prevents crops from clogging at the entrance of the handling room and that can increase leakage under the screen. For this purpose, a plurality of supply vanes are provided at the front, and each supply vane is connected to the winding start of a different screw, and at the rear of the handling cylinder, one screw is pitched. The spacing is large.

(Example) The embodiments shown in the drawings will be described below.

First, the entire screw-type threshing machine shown in FIG. 1 will be explained.

The crops are raked by a raking reel 1 and cut by a cutting blade 2, and the cut crops are transferred from a raking auger 3 to a chain conveyor 5 in a feeder house 4 to a handling room 6.
The grains are transported to the warehouse and threshed using a screw-type handling drum 7.

The threshed grains fall from the receiving net 8 to the sorting auger 9, and are moved by the rotating auger 9 toward its terminal end.

During this conveyance process, grains and fine straw waste leak downward from the receiving net 10 stretched over the receiving gutter of the auger 9, and only the long straw is carried toward the culm outlet 11.

Leakage containing grains that have fallen from the receiving net 10 is sorted by a winnowing fan 12 and a suction fan 18 at the end of the handling cylinder, and the grains are transferred to the first gutter 13.
Then, the second grain falls into the second gutter 14, the grains that fell into the first gutter 13 are carried to the paddy tank, and the second grain is returned to the handling room 6 through the thrower tube 15. .

16 is a crawler equipped with a thresher, 17
indicates the control section.

In the screw-type threshing machine as described above, a cone section 24 is provided at the front of the handling barrel 7, and a pair of upper and lower supply vanes 19, 20 are provided on the cone section 24. Double screws 21 and 22 are formed on the handling cylinder 7 itself, and the beginnings of each winding are connected to supply vanes 19 and 20, respectively.

In this case, the crops will be sent into the handling chamber by each feeding blade 19, 20, but each screw 2
The beginnings of the windings 1 and 22 are connected to the feed blades 19 and 20, so that even when the entire crop is input, it is guided by each screw and sent into the handling chamber for good dispersion and smooth feeding and threshing. , ability increases.

In addition, clogging is less likely to occur at the rear of the handling cylinder 7, so by feeding slowly with one screw 23 as shown in FIG. Sorting can be done effectively.

(Effects of the invention) This technical means has the characteristics that even if the entire amount of crops is input, the supply of crops within the handling room is carried out smoothly, and the dispersion within the handling room is improved, increasing the capacity. In addition, since the crops can be fed with a single screw at the rear of the handling barrel, more leakage can be achieved under the net, and the sorting can be carried out effectively with the sorting auger.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the whole screw-thresing combine harvester as seen from the front, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is an explanatory diagram of the proposed device as seen from the front. 7... Handling cylinder, 24... Cone part, 19, 20...
...Supply vane, 21, 22, 23...screw.

Claims (1)

[Scope of utility model registration request] In a screw-type handling cylinder of a full-volume loading type, a plurality of supply vanes are provided at the front, and a winding start of a different screw is connected to each supply vane, and one at the rear of the handling cylinder.
A handling barrel for a screw-type threshing machine characterized by a large spacing between pitches as a screw for books.