JPH0441804Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a full-feed type threshing device constructed by wrapping a spiral around the circumferential surface of a handling cylinder that is stored in a handling chamber. .

(b) Prior art Although it is not a full-volume supply type as described above, a threshing device constructed by winding a spiral around the circumferential surface of a handling cylinder that is stored in a storage chamber is known as a conventional technology, such as the There is one as shown in Japanese Patent No. 58-24153.
However, in the configuration shown in this publication, the handling teeth and the spiral are both implanted or wound around the peripheral surface of the handling cylinder, and the receiving net and the handling cylinder cover are arranged from the starting end of the handling chamber to the terminal end. There are those that have a widening truncated cone shape and the distance between the tip of the handling tooth and the catch net gradually become larger, and those that have a handle body that is shaped like a truncated cone, such as the one disclosed in Japanese Utility Model Application Publication No. 170360/1983. There is one that is formed into a shape with a large diameter on the starting end side and a gradually smaller diameter on the terminal side so that the distance between the handling teeth and the receiving net is increased like the above-mentioned one.

(c) Problems to be solved by the invention As described above, in conventional devices, the receiving net and the handling barrel cover are configured in a truncated conical shape that becomes wider from the starting end to the terminal end of the handling chamber. There is also a threshing device in which the handling barrel is formed into a truncated conical shape, with the starting end having a large diameter and the terminal end having a gradually smaller diameter, thereby gradually increasing the distance between the tip of the handling teeth and the receiving net. However, the present invention reduces the transfer force of grain threshing at the end of the handling chamber while preventing dust such as straw waste from being generated in the handling chamber and allowing the subsequent sorting action to be performed well. This not only prevents straw culm clogging and eliminates power wastage, but also creates a situation where the transfer from the starting end to the end of the handling room stalls the transfer of grain to the end. In addition to promoting leakage of handled materials from this location in the handling room,
It is an object of the present invention to provide a threshing device which can improve the sorting by rationalizing the positional relationship with the grain take-out gutter.

(d) Means for solving the problem Therefore, in order to provide a threshing device for the above-mentioned purpose, the present invention is constructed by wrapping a spiral around the circumferential surface of a handling cylinder that is mounted on a storage shaft in a handling room. In a full-feed type threshing device, the distance between the periphery of the spiral and the receiving net on the starting end side of the handling chamber is made small, the above-mentioned distance on the terminal end side is made large, and the above-mentioned distance is increased from the starting end side to the terminal end side. The starting end of the interval made is
The structure is such that it is located at an upper position closer to the first item takeout gutter than the connection ridge line of the number one item takeout gutter.

(e) Function With this structure, the entire grain culm is supplied to the starting end of the handling chamber, and while being threshed by the rubbing action between the periphery of the spiral and the receiving net, grains etc. are handled from the receiving net. The straw culms and straw waste are transferred to the terminal side and discharged, but in this case,
At the end of the handling chamber, the distance between the periphery of the spiral and the receiving net is small, so most of the threshing action takes place there, and the threshing action is carried out by combing while being stirred at the end, where the gap is larger. This allows the grains to be separated from the straw culms and straw waste and allowed to leak through the receiving net.

In particular, a situation is created in which the transfer force suddenly decreases at the point where grain transfers from the start side to the end side in the handling room, and the transfer to the end of threshing is stagnant, causing leakage from the receiving net at this point. The waste materials that leak and fall fall above the connecting ridge line between the first and second material take-out gutter to the first material take-out gutter side and are well sorted in the sorting section. .

(f) Examples Hereinafter, a threshing device according to the present invention will be explained with reference to the drawings of examples.

The threshing machine shown in this example is configured as a combine harvester, so the outline of this combine harvester will be described first. After the stalks are taken in by the take-in reel 1 and cut by the cutting blade 2, they are lifted by the take-in auger 3 on the chain conveyor 5 of the feeder house 4, and the entire amount, together with the stalks, is supplied to the beginning of the handling chamber 6 of the threshing machine for threshing. The grains, broken stalks and fine dust generated by this threshing action leak down from the receiving net 7 and fall onto the oscillating sorting section 8, where they are transported towards the end. During this transport process, the grains and fine dust leak down from the oscillating sorting section 8, and the broken stalks are carried to the end and discharged outside the machine, and the straw stalks and straw dust that do not fall through the receiving net 7 are also discharged from the end of the handling chamber 6.

Then, the grains leaked from the above-mentioned swing sorting section 8 are separated into 1 grain by the wind sorting action by the ventilation fan 9 and the suction fan 11 attached to the terminal end of the handling cylinder 10.
Rice grains and the like fall into the second product take-out gutter 13 into the first product take-out gutter 12, and the grains that have fallen into the first product take-out gutter 12 are taken out into a predetermined container by a grain fryer or the like, and then transferred to the second product take-out gutter. The contents in 13 are returned to the above-mentioned swing sorting section 8.

Next, the main parts of the present invention will be explained. A spiral body 14 is attached to the peripheral surface of the handling cylinder 10 stored in the handling chamber 6 of the threshing device, and a spiral body 15 is wound around the spiral body 14 from the starting end to the ending end. The height of the spiral 15 is increased on the starting end side from the middle part to the starting end, and the height is lowered on the starting end side from the middle part to the starting end, and the distance m between the peripheral edge 15a of the spiral 15 and the receiving net 7 is set on the starting end side. is made small, and the distance L is made large on the terminal side.

In addition, the starting end portion of the increased interval L in the middle of the transition from the starting end side to the terminal end side is passed through the swinging sorting section 8 so that the first item They are arranged in relation to each other so as to be located at an upper position closer to the takeout gutter 12 side.

Therefore, on the starting end side of the handling chamber 6, the spacing m between the peripheral edge 15a of the spiral 15 and the receiving net 7 is small, and most of the threshing action is performed here, and the threshing action is performed at the end where the spacing L is large. While being stirred on the side, the grains are separated from the straw culms and straw waste and allowed to leak through the receiving net 7.

In addition, at a point in the handling chamber 6 where grain threshing moves from the starting end to the terminal end, the transfer force suddenly decreases, and the transfer to the terminal end becomes stagnant, and at this point, the receiving net 7
The leakage is promoted, and the leaking and falling materials are subjected to sorting action in the swing sorting section 8, and are separated from the connecting ridge line T between the first and second material take-out gutter 12 and the second material take-out gutter 13. The second product, such as rice cake, falls above the second product take-out gutter 12 side due to wind selection, and the second product, such as rice cake, crosses the connecting ridge line T to the second product take-out gutter 13 side. They are selected and fall into the first and second object take-out gutter 12 and 13, respectively.

In addition, the one in FIG. 4 shows another embodiment, in which the height of the spiral 15 wound around the peripheral surface of the handling cylinder 10 is the same on the starting end side and the terminal end side, and the receiving net 7 is placed in the middle. The sections are arranged at different levels so that the interval m on the starting end side is small and the interval L on the terminal end side is large.

Further, 16 is a peripheral edge 15a on the side surface of the spiral 15.
It is a rod-shaped handling tooth that is fixed at a receding angle with respect to the handling cylinder 10 that slightly protrudes from the handle and rotates in the A direction.

(g) Effects of the invention As detailed above, the present invention provides a full-feed type threshing device consisting of a spiral wrapped around the circumferential surface of a handling cylinder that is stored in a handling chamber. The distance between the periphery of the spiral and the receiving net on the side is made smaller, the above-mentioned distance on the end side is made larger, and the starting end portion of the increased distance from the start end side to the end end is used as the first item takeout gutter. It is characterized by being located at an upper position closer to the first material take-out gutter than the connecting ridge line of the second material take-out gutter, so that all grain culms are supplied to the starting end side of the handling chamber. The grain culm undergoes most of the threshing action on the supply side, and the threshed grain is stirred and combed out at the terminal end where the interval is large, and the grains are removed from the straw culm and straw waste. Since the grains are separated and dropped from the receiving net, there is no unhandled grain in the handling room and no grains are scattered to the third port. In addition, since there is no needless threshing action on the end side to generate dust such as straw waste, the subsequent sorting action is improved, and furthermore, the conveying force on the end side is reduced to remove straw. This not only prevents culm clogging and eliminates power wastage, but also creates a situation where the transfer from the starting end to the terminal end of the handling room stalls the transfer of grain to the terminal end. In addition to promoting the leakage of handled materials from this location in the handling room, the positional relationship between this location and the No. 1 material removal gutter in the sorting section is made rational to further improve sorting. We were able to provide a threshing device that could

[Brief explanation of the drawing]

The drawings are for illustrating the embodiment of the present invention, and FIG. 1 is an overall side view of a combine harvester equipped with a threshing device according to the invention, and FIG. 2 is a view showing A of FIG. 1.
3 is a sectional view taken along the line B-B, and FIG. 4 shows another embodiment. 6...handling room, 10...handling barrel, 15...spira, 15a...periphery, 7...receiving net, m...interval,
L... Interval, T... Connection ridge line, 12... 1st item removal gutter, 13... 2nd item removal gutter.

Claims (1)

[Scope of utility model registration request] In a full-feed type threshing device configured by winding a spiral 15 around the circumferential surface of a handling cylinder 10 stored in a handling chamber 6, the peripheral edge 15a of the spiral 15 on the starting end side of the handling chamber 6 and the receiving net 7 Reduce the distance m between
In addition to increasing the above-mentioned distance L on the terminal end side, the starting end portion of the increased interval L moving from the starting end side to the terminal end side is set to be larger than the connecting ridgeline T between the first object take-out gutter 12 and the second object take-out gutter 13. A full supply type threshing device characterized by being located at an upper position close to the first material takeout gutter 12 side.