JPH0582169B2 - - 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]

Generally, the second grains collected by the threshing machine are thrown and returned to a handling chamber, a swinging sorting section, or a processing chamber through a thrower cylinder equipped with an oblique discharge path. There is (Japanese Patent Publication No. 59-175818,
(See Utility Model Application No. 59-170431 and Utility Model Application No. 60-121739).

[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 the first invention is capable of throwing and returning the second object with less occurrence of clogging, without unnecessarily increasing the circumferential speed of the thrower blade. A second object of the present invention is to efficiently reprocess the second material during the reduction, thereby facilitating subsequent processing.

[Means to solve the problem]

The characteristic configuration according to the first invention is that the thrower cylinder for reducing the second object 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, and The second aspect of the present invention is characterized in that a processing rotary body for the second object is provided at a point where the direction changes from the route to the sideways route in a state where it is forcibly rotated. In addition, receiving teeth corresponding to the treated teeth are provided on the inner surface of the thrower cylinder.

[Effect]

According to the configuration of the first 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, the inner surface of the lower surface side of the path as in the oblique posture path. Problems such as second objects adhering to the surface are less likely to occur.
The second item is 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 reduction product with the inner peripheral surface of the thrower cylinder and carry out a single particle treatment. By applying a strong conveying force to the object again, the second object is smoothly conveyed even on a horizontal path.

Moreover, according to the structure of the second invention, not only the above-mentioned effect is brought about, but also a strong loosening of the second object is achieved by the processing teeth of the processing rotating body that is driven and rotated and the receiving teeth fixedly provided on the inner surface of the thrower cylinder. Single grain processing is performed.

〔Effect of the invention〕

Therefore, according to the first invention, by rationally configuring the shape of the thrower cylinder and the arrangement position of the processing rotary body, not only can the second product be single-grained, but also
By assisting the throwing force, it has been possible to eliminate the problem of clogging caused by secondary objects adhering and accumulating on the inner surface of the cylinder in the middle.

Further, according to the second invention, in addition to the above-mentioned effects, the second grain is strongly processed into single grains in the reduction route, so that the burden of subsequent threshing work is 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 a swing sorting section 7 is provided below the threshing section 5 for wind selection using the sorting wind from a winnowing machine 6.
The first grain conveying process 9 transports the grains from the oscillating sorting section 7 to the grain tank 8, and the second grain conveying device 10 returns the second grains from the oscillating sorting section 7 to the oscillating sorting section 7. A combine harvester is constructed by providing the following.

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. The rotating body 13 may be a simple drum-shaped member, but as shown in FIG. A rod-shaped receiving tooth 15 is provided on the inner surface of the thrower cylinder 12,
The treatment tooth 14 and the receiving tooth 15 have a structure that applies a strong treatment action. Note that the tip trajectories of the treated tooth 14 and the receiving tooth 15 overlap when viewed from the side. Further, the rotation speed of the thrower device 11 is 1200 rpm (circumferential speed 20 m/S), whereas the rotation speed of the processing rotor 13 is 800 rpm (circumferential speed 8 m/S). The treated tooth 14 may be a rod-shaped treated tooth 14a as shown in FIG.
It is also possible to take a form in which the rod-shaped treatment teeth 14a are used to loosen the lumps of straw, and the blade-shaped treatment teeth 14b are used to release the straw by alternately planting them on the treatment rotating body 13. The gap between the tip trajectory and the inner circumferential surface of the thrower cylinder 12 is kept at 4 to 7 mm.

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 rotary drum is also fixed integrally,
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.

As shown in FIG. 1, the storage portion 12C of the thrower cylinder 12 relative to the processing rotary body 13 has a bulge in which a part of the inner circumferential surface on the side of the processing object throwing trajectory by the thrower device 11 bulges outward. A portion 12a is provided, and the processing rotary body 13 is installed and configured such that the processing tooth tip locus of the processing rotary body 13 is located within this bulged portion 12a. Therefore, by directing the tip trajectory of the processing tooth 14 into the bulged portion 12a with respect to the second object sent along the inner circumferential surface of the thrower cylinder 12 in accordance with the rotational direction of the thrower device 11, It is possible to overlap the processing tooth 14 and the second object conveyance trajectory, and the processing tooth 14
It is possible to effectively utilize the processing action of

[Another example]

(a) As shown in FIG. 5, instead of the receiving teeth 15, the inner circumferential surface of the thrower cylinder 12 is formed into a rough surface 12b with unevenness, and together with the processed teeth 14, a kneading action is applied to the second material. Good too.

(B) As shown in Fig. 6 A and B, both the receiving teeth 15 and the processing teeth 14 are made into long plate shapes in the direction of conveying the second material, so that the kneading and kneading action area of both 15 and 14 can be lengthened. It is also possible to have a configuration that does this. The length of the receiving tooth 15 is the length of the plurality of treated teeth 14
Any material that can perform processing operations at the same time may be used.

(C) As shown in Figure 7 A, B, and C, the treated teeth 14
Alternatively, a plurality of them may be attached to the L-shaped base 18 and formed integrally.

[Brief explanation of the drawing]

The drawings show an embodiment of the second reduction structure of a threshing machine according to the present invention, FIG. 1 is a longitudinal cross-sectional side view showing a processing rotating body installed in the thrower cylinder, and FIG. Vertical rear view showing the processing rotor, 3rd
The figure is a schematic side view of the threshing machine, FIG. 4 is a plan view of the combine harvester, FIG.
B shows another embodiment of the treated tooth and the receiving tooth, respectively, A is a longitudinal side view showing the state in which they are attached to the processing rotor, B is an enlarged longitudinal sectional back view of the main part corresponding to A, and FIG. A, B, and C show different embodiments of the treated tooth, respectively. A is a longitudinal sectional side view showing the state in which it is attached to a processing rotating body, B is an enlarged vertical sectional rear view of the main part corresponding to A, and C is an enlarged vertical sectional rear view of the main part corresponding to A. It is a perspective view of a treated tooth. 11...Thrower device, 12...Thrower tube, 13
...Processing rotating body, 14...Processing tooth, 15...Receiving tooth, R1...Upward path, R2...Sideward path.

Claims (1)

[Scope of Claims] 1. A thrower cylinder 12 for returning a second object is provided with an upward path R1 going upward from the thrower device 11 and a lateral path R2 going sideways from the terminal end of this upward path R1. , the upward path R
A second reduction structure of a threshing machine, in which a processing rotary body 13 for a second object is provided in a state where it is forcibly driven and rotated at a point where the direction changes from the first to the horizontal path R2. 2. A threshing machine according to claim 1, wherein processing teeth 14 are implanted in the processing rotating body 13, and receiving teeth 15 corresponding to the processing teeth 14 are provided on the inner surface of the thrower cylinder 12. Reducing structure.