JPH0582171B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a second reduction structure for reducing and reprocessing second grains sorted and collected in a threshing machine.

[Conventional technology]

The second grains collected by the threshing machine are generally thrown and returned to a handling chamber, a swinging sorting section, or a processing chamber via a thrower cylinder equipped with an oblique discharge path. There is (Japanese Patent Publication No. 175818/1983,
(Refer to Utility Model Application Publication No. 170431/1983 and Publication No. 121739/1988).

[Problem to be solved by the invention]

In this structure where the second material is reduced using a thrower device, a long diagonal reducing path is formed by the thrower cylinder, so when the amount of the second material is large or the moisture content of the second material is low. When there are many and heavy objects, the second object adheres to the inner surface of the lower part of the feed path of the thrower cylinder in the latter half of the feed path, and tends to stall and cause clogging.

As a means to reduce such problems, it is effective to strengthen the throwing action of the second object by the thrower device. For example, increase the outer diameter of the thrower blade or increase the thrower rotation speed to increase the blade circumferential speed. However, if the peripheral speed of the thrower blade is increased, another problem will occur in which there is a greater possibility that excessive impact will be applied to the grains contained in the second grain and damage them. There was also a limit to increasing the circumferential speed of the blades.

The present invention has been made in view of the above-mentioned circumstances, and makes it possible to throw and return the second object with less occurrence of clogging without unnecessarily increasing the circumferential speed of the thrower blade. The object of the present invention is to efficiently reprocess the second material during the above-mentioned reduction, thereby facilitating subsequent processing.

[Means to solve the problem]

The characteristic configuration according to the present invention is that the thrower cylinder for second object reduction is provided with an upward path going upward from the thrower device and a lateral path going sideways from the terminal end of this upward path, and from the upward path. At the point where the direction changes to the horizontal path, a processing rotating body for the second item is provided in a state where it is forcibly rotated, and this processing rotating body has plate-shaped processing teeth, and the flat surface thereof is perpendicular to the processing rotation axis. At the same time, the plate-shaped receiving tooth, which is in an overlapping state when viewed in the direction of the axis of the processing rotor and the tip trajectory of the treated tooth, is placed so that its flat surface is perpendicular to the axis of the processing rotor. It is attached to the wall surface of the processing rotary body storage chamber so that it is aligned along the surface.

[Effect]

Since the first half of the return path released by the strong throwing force of the thrower device is configured as an upward path from the thrower device, there is no risk of second objects adhering to the inner surface of the lower surface of the path as in the oblique position path. The second item is transferred smoothly without causing any problems.
Then, by providing a processing rotating body that is forcibly driven and rotated at the end of this upward path and at the point where the direction changes to the subsequent horizontal path, the outer circumferential surface of this processing rotating body and this outer circumferential surface can be matched. It is possible to apply a rubbing action to the second reduced material with the inner circumferential surface of the thrower cylinder, which makes it possible to carry out a granulation process, and at the same time, the driving rotational force of the processing rotor is applied to the second reduced material during reduction transportation. By applying a strong conveying force again, the second item is conveyed smoothly even on the horizontal path.

In addition, by setting the treated teeth and receiving teeth in a posture along a plane perpendicular to the axis of the processing rotor, a plate-like flat surface that can expand the processing area compared to a rod-shaped type is used for processing the second object. It can be used as a surface to apply sufficient kneading action to the second product.

〔Effect of the invention〕

Therefore, by rationally configuring the shape of the thrower cylinder and the arrangement position of the processing rotor, it is possible to not only perform the single grain treatment of the second product, but also to assist the throwing and conveying force. This has solved the problem of clogging caused by particles adhering to and accumulating on the inner surface of the cylinder in the middle. In addition, by providing a sufficient area for massaging the second grain in the return route, the single grain processing capacity can be improved, and the burden of subsequent threshing work can be reduced.
The overall throughput of the thresher has been improved.

〔Example〕

The second material processing structure of the threshing machine mounted on the combine harvester will be explained below. As shown in FIGS. 3 and 4, a reaping preprocessing section 1 and a control section 2 are installed side by side at the front of the machine, and a feed chain 3 and a handling barrel 4 are provided at the rear of the reaping preprocessing section 1. A threshing section 5 is provided, and an oscillating sorting section 7 is provided below the threshing section 5 for sorting grains from a winnowing machine 6 using a sorting wind. The first article conveying device 9 transports the second article to the swing sorting section 7, and the second article conveying device 1 returns the second article from the swing sorting section 7 to the swing sorting section 7.
0 is provided to constitute a combine harvester.

The second object processing structure will be explained. A thrower device 11 for flipping up the second product is provided at the conveyance end of the screw conveyor-type second product traversal device 10, and a grain pan 7A of the swing sorting section 7 removes the second product thrown up by the thrower device 11. A thrower tube 12 is provided to induce reduction. As shown in FIG. 1, this thrower cylinder 12 has a vertical position portion 12A above the thrower device 11 and a horizontal position portion 12A toward the swinging sorting unit 7.
B, and the thrower device 11 in the vertical position part 12A.
An upward route R1 is formed upward from the lateral position portion 12B, and a lateral route R2 is formed laterally from the terminal end of the upward route R1 at the lateral position portion 12B.

Then, the vertical posture portion 12A and the horizontal posture portion 12B
The processing rotary body 13
It is equipped with and configured. As the rotating body 13, as shown in FIGS. 1 and 2, a plate-shaped processing tooth 14 is implanted so that its flat surface follows a plane perpendicular to the processing rotation axis. With,
The plate-shaped receiving tooth 1 is positioned between the treated teeth 14.
5 is attached to the wall surface of the storage chamber of the processing rotor 13 so that its flat surface is aligned with a plane perpendicular to the axis of the processing rotor, and the processing tooth 14 and the receiving tooth 15 have a structure in which a strong processing action is applied. I'm making it a thing. Note that the tip trajectories of the treated tooth 14 and the receiving tooth 15 overlap when viewed from the side. Moreover, the rotation speed of the thrower device 11 is
The rotation speed of the processing rotating body 13 is 800 rpm (peripheral speed 8 m/S), whereas the rotation speed is 1200 rpm (peripheral speed 20 m/S).

Furthermore, the processing rotating body 13 is connected to the dust inlet 16 of the handling chamber 16.
It is coaxially provided at the end of the drive rotating body 17 that is rotationally driven via a drive mechanism (not shown) provided corresponding to A, and is connected to the respective rotating shafts 13A, 1.
Along with 7A, the rotating drum itself is also fixed together,
Drive sources can be shared. On the other hand, the drive rotating body 1
7 acts to improve the sorting performance in the swing sorting section 7 by adding a loosening effect to the waste straw discharged from the dust feeding port 16A.

The receiving teeth 15 can be moved in and out of the inner space of the thrower tube 12, and the amount of protrusion into the inner space can be adjusted depending on the difference in crops to be harvested, so that there is no excess or deficiency in the massaging action. There is.

[Brief explanation of drawings]

The drawings show an embodiment of the second reduction structure of the threshing machine according to the present invention, FIG. 1 is a front view showing the installed state of the processing rotary body, FIG. 2 is a longitudinal side view of FIG. 1,
FIG. 3 is a schematic side view of the threshing device, and FIG. 4 is a plan view of the threshing device. 7...Occillating sorting unit, 11...Thrower device, 12
...Thrower tube, 13...Processing rotating body, 14...Processing tooth, 15...Receiving tooth, R1...Upward path, R2
...sideways route.

Claims (1)

[Claims] 1 Thrower cylinder 1 for returning the second material to the swing sorting section 7
2 is provided with an upward route R1 going upward from the thrower device 11, and a lateral route R2 going sideways from the terminal end of the upward route R1,
A processing rotary body 13 for the second object is provided at a location where the direction changes from the upward route R1 to the sideways route R2, and the processing rotary body 1 is forcedly rotated.
3, a plate-shaped treated tooth 14 is implanted so that its flat surface is aligned with a plane perpendicular to the processing rotation axis, and the tip locus of the treated tooth 14 and the treatment rotation body axis direction are Plate-shaped receiving tooth 15 in a polymerized state
The second reduction structure is attached to the threshing machine attached to the wall surface of the storage chamber of the processing rotor 13 so that its flat surface is aligned with a plane perpendicular to the axis of the processing rotor.