JPS6026609Y2 - Threshing machine dust sending device - Google Patents

Description

[Detailed description of the invention] The dust sending device attached to the rocking body of the thresher oscillates and separates the grains, dust, etc. discharged from the handling room and processing room.
It has the function of collecting paddy in the first spiral and collecting paddy in the second spiral, and guiding straw waste to the outside of the machine. , and a comb tooth section (hereinafter referred to as the transfer plate section) that separates the transfer plate.

Conventionally, in order to perform the above function, the transfer plate part was often molded as a single unit and multiple pieces were fixed to the corrugated plate part, but with this configuration, the fixed part could not withstand severe shaking and was damaged. Problems such as this occurred.

In addition, it requires a large number of processing steps and is difficult to improve accuracy.

In view of these conventional drawbacks, the present invention was devised in order to increase the strength of the dust evacuation feeder by attaching multiple press-formed plates overlapping each other, and to reduce the number of parts and make the work easier. be.

This will be explained below based on the drawings.

In Figure 1, 1 is the handling drum of the threshing section, 2 is the handling room, 3 is the receiving net that surrounds the handling drum, 4 is the supply port for the culm, and 5 is the opposite side of the supply port 4 across the handling drum 1. This is a culm opening opened on the side.

7 is a dust exhaust port opened at the end of the processing chamber 6 attached to the treatment room, and is located below the culm discharge port 5;
This is a discharge vane fixed to the

Note that 10 is the first spiral, and 11 is the second spiral.

Further, reference numeral 12 designates a blowing fan provided below the receiving net 3 on the shell culm supply side, and between it and a suction fan 13 provided at the rear upper part of the machine body, a sorting air is formed to control wind sorting.

Reference numeral A denotes a swinging body disposed in the sorting air passage, which swings in the longitudinal direction of the aircraft body by a suitable swinging mechanism.

A dust removal device B is attached to the rocking body A, located below the culm discharge port 5 and the dust removal lower, and the straw culm threshed by the handling drum 1 is discharged from the culm discharge port 5. The chips that are separated during the process and the dust that is discharged from the dust removal lower of the processing chamber fall onto the dust removal device B and are sorted by its shaking action. Transfer plate part 14b
, 15b and are discharged outside the machine by the suction fan 13, the first grain falls onto the spiral 10 and is collected, and the second grain is transferred to the transfer plate part 14b.

Falling from the gap in 15b, the wind sweeps the second spiral 11
It is designed to be collected in

Fig. 2 is an installation diagram of the dust removal device B, and Fig. 3 is an exploded view thereof. The upper plate 14 has a corrugated plate part 14a for receiving cut objects and waste materials and transferring them in the direction of the suction fan 13, and a corrugated plate part 14a that extends in the direction of the suction fan 13. It is press-molded integrally with a transfer plate portion 14a consisting of several comb teeth formed with upper grain feeding protrusions.

For example, as shown in the exploded view of FIG. 4, this upper plate 14 is bent at the chain line and press-formed. molded into a mold.

In the figure, H indicates the height of the bent portion, and P indicates the interval between the transfer plate rows.

The portion of the lower plate 15 that overlaps with the corrugated plate portion 14a of the upper plate 14 is a flat plate 15a, and the subsequent transfer plate portion 15b is press-molded to have the same side shape as the transfer plate portion 14b of the upper plate.

Further, the base plate 16 is formed by bending one end, and this bent portion 16c is provided to prevent objects, dust, etc. from scattering in the opposite direction.

Under the upper plate 14, which has been press-bottomed in this way, the upper and lower transfer plate parts 14b and 15b are arranged at equal intervals (i.e., 172
P ), the lower plate 15 is superimposed, and the base plate 16 is placed below the base plate 16 in a position where its flat plate part 16a corresponds to the flat plate part 15a of the lower plate, and the three parts are fixed to form the dust removal device B. ing.

Further, as shown in FIG. 5, a lower plate in which one end of the flat plate portion 15a of the lower plate 15 is extended as shown by a chain line to form a bent portion 15c, and the upper plate 14 are superimposed and fixed. A dust removal sending device B may also be configured.

In the dust sending device B configured as described above, the cuttings and dust discharged from the exhaust culm 5 and the dust removing lower of the processing chamber are transferred onto the corrugated plate portion 14a of the dust sending device B. It falls, is oscillated and transferred, and reaches the transfer plates 14b and 15b arranged at equal intervals, and the clumps of straw waste are loosened by the oscillating transfer action of the transfer protrusion, and the number of pieces contained therein is loosened. straw falls from the gap between the transfer plate parts 14b and 15b at an early stage and is collected in the first spiral, the second straw falls later than this and is collected in the second spiral, and relatively large straw waste is collected in the second spiral. 14b and 15b, and is discharged from the machine by the suction fan 13.

, Here, in order to drop the second material and completely transfer the straw waste, the bending height H of the transfer plate part and the row spacing are both important factors, and the bending height H is low. If it is too high, it will not be possible to raise the height of the transfer protrusion, and the clumps of straw will not be loosened.
The paddy and second grains are transferred and discharged from the machine through the suction port.

Furthermore, if the row spacing is widened in order to increase the bending height H, the straw clippings fall onto the top of the spiral and mix into the paddy, resulting in poor sorting at the top.

Therefore, conventionally, as shown in FIG. 6, the transfer plate 17b is formed as a single unit, and a plurality of transfer plates 17b are arranged in parallel and fixed to the corrugated plate part 17a, thereby ensuring a predetermined bending height H and row spacing P. Attempts have been made to construct the dust removal device B, but since the dust sending device B swings violently, the above-described structure lacks the strength of the fixed portion and is complicated in construction.

Therefore, in order to eliminate these drawbacks, it is conceivable to press the transfer plate part and the corrugated plate part into one piece with a single metal plate as shown in Fig. 7, but the row spacing should be set to a predetermined dimension. In order to do this, the height H of the folded part becomes too low and the clumps of straw waste cannot be loosened, and in order to make the height of the folded part a predetermined size, the row spacing becomes too wide. There are disadvantages such as long straw leaking and poor selection of the first straw.

However, in the present invention, the corrugated plate part and the transfer plate part are integrally molded in order to eliminate the problem of conventionally molding a single transfer plate and attaching multiple pieces to the corrugated plate part. Therefore, it is possible to obtain a dust removal and feeding device that can effectively set the row spacing and the height of the bent part. That is, in the present invention, the upper plate 14 and the lower plate 15 are each press-formed, and a fixed interval is set. In the dust removal device B, the transfer plate portions 14b and 15b are assembled together with the transfer plate portions 14b and 15b polished to each other, and the interval P between the transfer plates is set as above. Since both the plate 14 and the lower plate 15 can be made sufficiently wide, the interval between the transfer plate rows, that is, 1/2P, and the height H1 of the bent part after both are assembled can be formed to predetermined dimensions. It is also relatively simple and easy to obtain machining accuracy, and in terms of strength, since the base of the transfer plate is constructed of two or three plates put together, it can withstand intense rocking motion.

[Brief explanation of drawings]

Figure 1 is a sectional view of the threshing machine, Figure 2 is a perspective view of the dust removal device, Figure 3 is an exploded perspective view of the main parts, Figure 4 is an exploded view of the upper plate,
FIG. 5 is a perspective view of another embodiment, FIG. 6 is a partial perspective view of a conventional example, and FIG. 7 is a perspective view of an example molded from a single plate. 1... Handling cylinder, 5... Culm outlet, 7...
...Dust exhaust port, 10...! Ichiban Spiral, 11...
...Second spiral, 13...Suction fan, A...
... Rocking body, B ... Dust sending device, 14.
...Top plate, 14a...Corrugated plate part, 14b.
...Transfer plate part, 15...Lower plate, 15a.
...Flat plate part, 15b...Transfer plate part.

Claims (1)

[Scope of utility model registration request] Two metal plates are formed into comb-shaped transfer plate portions that stand up at a certain interval using a press bottom shape, and
A dust removal device for a threshing machine, characterized in that both transfer plate portions are integrally assembled in a state where they are spaced apart from each other.