JPH0582172B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a threshing device that is mounted on a combine harvester or the like.

[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 tends to adhere and accumulate on the inner surface of the lower surface of the feed path of the thrower cylinder in the latter half of the feed path, causing stalling and 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 away and return the second product with less occurrence of clogging, and to efficiently reprocess the second product during the above-mentioned reduction. The purpose is to make it easier to carry out subsequent processing.

[Means to solve the problem]

The characteristic configuration according to the present invention is that the thrower cylinder for returning the second material to the swinging sorting section is provided with an upward path going upward from the thrower device and a lateral path going laterally from the terminal end of this upward path. established,
At the point where the direction changes from the upward path to the sideways path, a processing rotary body for the second object is provided in a state where it is forcibly rotated, and a plurality of processing teeth are implanted in the processing rotation body, and a plate-shaped member for the processing teeth is provided. A receiving tooth is provided on a wall surface of a corner portion of the processing rotating body storage at the path direction change location, and the receiving tooth is a long piece that overlaps a plurality of processing teeth along the circumferential direction of the processing rotating body. It lies in the fact that it is formed into something.

[Effect]

According to the structure of the present invention, since the first half of the return path discharged by the strong throwing force of the thrower device is configured as an upward path upward from the thrower device, there is a double path on the inner surface of the lower surface side of the path as in the oblique posture path. Problems such as adhesion of second articles are less likely to occur, and second articles can be transferred smoothly. 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 smoothly conveyed toward the swing sorting section even on the horizontal path.

Since the receiving tooth is formed in a long plate shape that overlaps a plurality of treated teeth along the circumferential direction at the corner portion at the path direction change point, the side surface of the receiving tooth and the The rubbing action due to friction with the moving processing teeth is applied to the second item over a long range, and since the processing range is at the corner, it is not only the processing between the receiving teeth but also the thrower cylinder. The processing between the inner surface and the inner surface is also carried out over a long range, and the powerful loosening action promotes the formation of single grains, making the processing more efficient.

〔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 eliminates the problem of clogging caused by adhesion and accumulation of particulate matter on the inner surface of the cylinder in the middle, and improves the processing capacity of the second part by the processing rotor installed in the reduction path, and the subsequent The processing load on the oscillating sorting section is reduced, and the processing capacity of the entire threshing machine is improved.

〔Example〕

Embodiments of the present invention will be described below based on the drawings. As shown in FIG. 4, a reaping preprocessing section 1 and a control section 2 are installed side by side at the front of the machine, and a threshing section 5 equipped with a feed chain 3 and a handling barrel 4 is installed at the rear of the reaping preprocessing section 1. A swinging sorting section 7 is provided below the threshing section 5 for sorting by the sorting wind from a winnowing machine 6, and the grains from the swinging sorting section 7 are transported to a grain tank 8. A combine harvester is constructed by providing a first article conveying device 9 and a second article conveying device 10 for returning the second article from the swing sorting section 7 to the swing sorting section 7.

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 shown in FIGS. 1 and 2, the rotary body 13 has blade-shaped treated teeth 14 along the axial direction of the treated rotary body 13, and the treated teeth 14 are embedded in the rotary body 13. A plate-shaped receiving tooth 15 is provided on the wall surface of the corner portion of the processing rotary body storage chamber 12a at the path direction change location, and this receiving tooth 15 is positioned in the notch of the processing rotary body 13. Along the circumferential direction, that is, when viewed in the axial direction of the processing rotor, the processing teeth 14 are formed into long pieces that overlap with a plurality of processing teeth 14 adjacent to each other, and the processing teeth 14 and receiving teeth 15 perform strong processing. It has a structure that adds action. 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 driving 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.

[Another example]

(b) The above-mentioned threshing device can also be applied to a harvester, etc.

(b) The side surface of the receiving tooth 15 facing the treated tooth 14 may be formed into a rough surface, or may be provided with a large number of small protrusions, or may be formed into an uneven surface to enhance the kneading action. You can pick it up.

[Brief explanation of the drawing]

The drawings show an embodiment of the threshing device according to the present invention,
Figure 1 is a side view showing how the processing rotor is installed;
Figure 2 is a rear view showing how the processing rotor is installed;
FIG. 3 is an overall side view, and FIG. 4 is an overall plan view. 7...Occillating sorting unit, 11...Thrower device, 12
...Thrower tube, 12a... Processing rotating body storage chamber, 1
3...Processing rotating body, 14...Processing tooth, 15...Receiving tooth, R1...Upward path, R2...Sideward path.

Claims (1)

[Claims] 1 Thrower cylinder 1 for returning second material to the swinging sorting section 7
2 is provided with an upward route R1 going upward from the thrower device 11, and a lateral route R2 going laterally from the terminal end of the upward route R1, and at a point where the direction changes from the upward route R1 to the lateral route R2. , a processing rotary body 13 for the second object is provided in a state of forced drive rotation, a plurality of processing teeth 14 are implanted in the processing rotation body 13, and a plate-shaped receiving tooth 15 for the processing teeth 14 is placed along the path. Processing rotating body storage chamber 12 at the direction change location
The threshing device 2 is provided on a wall surface at a corner portion of a, and the receiving tooth 15 is formed into a long piece that overlaps a plurality of processing teeth 14 along the circumferential direction of the processing rotating body 13. Claim 1, in which the surface of the shaped receiving tooth 15 facing the treated tooth 14 is formed into a rough surface.
The threshing device described in section.