JPH0120830Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the structure of a threshing machine for threshing grains such as paddy.

[Conventional technology]

Various methods have been devised to reduce No. 3 loss in threshing machines, and one prior art is a sorting device that is equipped with a sorting device located at the bottom of the handling chamber that swings along the axial direction of the handling barrel. An air passage is formed, and the dust exhaust port at the rear end of the handling chamber and the adjacent No. 4 socket are connected to the upper part of the sorting air passage. By providing a processing cylinder and a cross-flow fan having an axis horizontally disposed orthogonal to the axis over the entire width of the sorting air passage, the waste to be processed from the dust exhaust port and the adjacent No. 4 socket can be disposed of. A device (Utility Application No. 58-49434) was developed in which the materials to be processed at the end of the sorting device are reprocessed in a processing cylinder, and waste straw and dust are discharged outside the machine using a cross-flow fan. be.

On the other hand, in the so-called lower handling method in which grain culm is supplied to the lower peripheral surface of the handling drum, and in the so-called upper handling method in which grain culm is supplied to the upper peripheral surface of the handling drum, in both cases, the tip of the grain culm is Because it is located far from the culm feed chain,
There is a bias in that more waste is discharged from the dust outlet on the side far from the grain culm feed chain. Therefore, if the swinging direction of the swinging device is the same as the axial direction of the processing cylinder, the amount of processed material will be larger on one side and less on the other side over the width perpendicular to the swinging direction. The distribution of objects becomes uneven.

[Problem that the invention attempts to solve]

As in the prior art, providing the width of the processing cylinder and the cross-flow fan to cover the entire width of the sorting air passage means that, as mentioned above, in areas where there are many objects to be processed, there is a large amount of waste straw, and at the same time, the width of the cross-flow fan is Since there are many grains mixed in with the processing cylinder, there is a disadvantage that the ratio of grains mixed with this to be discharged outside the machine increases on the side where there is a large distribution of objects to be processed, and the so-called No. 3 loss increases. Since the cross-flow fan is installed at the rear, the length of the threshing machine increases accordingly, and the processing cylinder and cross-flow fan are fully mounted inside the processing chamber across both sides of the processing chamber. Moreover, since all of these spindles must be connected to rotational drive means, it is difficult to attach and detach them, and maintenance, inspection, and cleaning inside the processing chamber are also difficult. Ta.

The present invention has been made to solve the above problems.

[Means for solving problems]

Therefore, in the present invention, a sorting device that swings in the axial direction of the handling cylinder is provided at the bottom of the handling room containing a handling cylinder whose axis is horizontally arranged along the grain culm conveying direction, and a sorting device that swings in the axial direction of the handling cylinder is installed at the rear of the handling room. forming a processing chamber that communicates with the dust exhaust port at the rear end and the upper end of the sorting device;
A suction port is opened in one side plate of the processing chamber, and a rotating support shaft having an axis perpendicular to the axis of the handling cylinder is provided on the other side plate of the processing chamber so as to protrude by an appropriate length toward the one side plate, The processing cylinder is configured to be detachably mounted on the support shaft via a space appropriately separated from the suction port.

[Effect]

With this configuration, the processing cylinder is disposed above the swing sorting device and behind the side where there are many objects to be processed from the dust exhaust port, so the objects to be processed can be processed. Since the suction port is opened through a wide space, the objects to be processed that move laterally towards the suction port at the rear end of the swinging sorting device are entangled with the blades of the rotating processing cylinder and can be processed there. This greatly reduces the loss of grain that is discharged from the machine. The processing cylinder is narrower than the width of the processing chamber, and therefore, the processing cylinder can be freely attached and detached by using the space with respect to the rotating support shaft that protrudes in a cantilevered manner from the side plate opposite to the suction port. It can be mounted on a rack, and since there are no shafts or other protrusions at the rear of the processing chamber, the processing cylinder can be easily removed by removing the rear plate of the processing chamber.
Cleaning inside the processing chamber can be done easily. Further, the rotation support shaft can be left as it is during the work of attaching and detaching the processing cylinder, and troubles such as poor assembly when reassembling these do not occur.

〔Example〕

Next, an embodiment of the present invention will be described. In the figure, 1 indicates a machine frame of a threshing machine, and a handling chamber 2 defined inside the machine frame 1 has a handling barrel 3 whose axis 4 is horizontal. The handling trunk 3 is placed on one side of the machine frame 1.
A feed chain 6 is installed along the handling port 7 connecting between the grain culm supply port 5 of the handling chamber 2 on the front end side and the empty grain culm discharge port on the rear end side, and the stock head part is sandwiched between the feed chain 6. It is constructed in a so-called under-handling type in which the tip of the grain culm that has been strained is fed to the lower peripheral surface of the handling cylinder 3.

A crimp net 9 is installed in the lower part of the handling chamber 2 except for the dust outlet 8 at the lower rear end of the handling chamber.

The swinging sorting device 10 is disposed in a sorting air passage 11 formed in the lower part of the handling chamber 2 and has a width that is approximately the same as the horizontal width of the handling chamber, and swings back and forth in the 4 directions of the axis of the handling cylinder 3. The device 10 includes a feed pan 12 that slopes diagonally downward from the bottom of the crimp net 9 toward the rear, and a feed pan 12 that slopes diagonally upward from the rear end of the feed pan 12 toward the dust outlet 8 or rearward thereof. Inclined grain sieve 1
3. It consists of a chaff sheave 14 arranged on the upper part, a stroke rack, and a sieve wire 15 extending rearward at its rear end, and the rear end side of the sieve wire 15 is configured to be able to swing up and down from outside the machine.

At the bottom of this swinging sorting device 10, there is a Karaoke fan 17 which blows the wind toward the processing chamber 16 after passing through the grain sieve 13.Then there is a No. 1 screw conveyor that receives leakage from the grain sieve 13. A No. 1 receiving gutter 18 with a screw conveyor and a No. 2 receiving gutter 19 with a No. 2 screw conveyor are provided, and a No. 2 reducing thrower 20 is provided at one end of the second receiving gutter 19 in communication with the second receiving gutter 19. A No. 2 reduction thrower passage 21 communicating from the No. 2 reduction thrower 20 to the handling chamber 2 is formed on the side.

The processing chamber 16 is formed above the second receiving trough 19 and the sieve wire 15, and the rear end of the processing chamber 16 is closed with the rear cover 22 of the machine frame 1.
The front plate 24 of the top plate 23 of the top plate 23 is arranged at a downward slope toward the drainage port 8 at the rear end of the handling chamber 2 at the lower part of the straw drainage chain 25 connected to the rear end of the feed chain 6 to form a No. 4 receiving gutter. At the lower end of this front plate 24, a No. 4 socket 27 is opened adjacent to the dust exhaust port 8.

Therefore, the processing chamber 16 has the above-mentioned dust exhaust port 8 and the No. 4 socket 2.
7 and the upper rear end of the sorting device 10.

One side plate 32 in this processing chamber 16
A suction port 34 is opened on the side near the side of the machine frame 1 where the feed chain 6 is arranged, and a suction blower 36 is provided in a case 35 provided outside the suction port 34.
Air is exhausted from the exhaust port 37 of the case 35 to the rear outside of the machine.

A diffusion type processing cylinder 30 with spirally formed blades 31 is mounted in the processing chamber 16 so that its axis is perpendicular to the processing cylinder axis 4 and is substantially horizontal. No. 2 return thrower 20
It is rotated so that the rear side moves upward, which is the same direction of rotation.

Further, the length l1 in the axial direction of the processing cylinder 30 is formed to be slightly longer than approximately half the width (W) of the screening air passage 11,
The end of the processing cylinder 30 and the one side plate 3 of the processing chamber 16
2, and the processing cylinder 30 is detachably attached to a rotating shaft 29 protruding by an appropriate length from a side plate 28 at a position near one side of the processing chamber 16, and is also detachably attached toward the rear of the processing chamber 16. Configure.

In this case, a boss portion 39 is located midway between the left and right of the inner diameter portion of the barrel cylinder 38 that is open at both ends of the processing barrel 30.
A hexagon socket set bolt 41 inserted through a hole 40 bored in the body tube 38 is screwed into the boss part 39, and a boss part 39 is fitted onto the tip of the rotating support shaft 29. It is made detachable by fixing it with a set bolt 41.

On the other hand, the rotation support shaft 29 is configured so that it can be attached or removed from the rear of the processing chamber 16 with the processing cylinder 30 attached or with the processing cylinder 30 removed. Therefore, the rotation support shaft 29 is attached to the inner diameter part of the cylindrical body 42 with both ends open.
A bracket 44 having a U-shaped cross section is fixed to the outer periphery of one end of the cylindrical body 42, while a groove 45 is cut out in the side plate 28 of the processing chamber 16 and opens toward the rear end. The outer surface of the side plate 28 is provided with a cut groove 46 substantially equal to the cut groove 45,
Further, a mounting frame 47 having a U-shaped cross section into which the bracket 44 having a U-shaped cross section can be fitted is fixed (see FIGS. 4 and 5).

As a result, the rotating support shaft 29 and the cylinder 42 are fitted into the grooves 45 and 46 from the rear end of the machine frame 1 in a direction substantially perpendicular to the axis thereof, and the bracket 44 is fixed to the mounting frame 47 with bolts. It is. Reference numeral 48 is a cover plate for covering the cut groove 45 in the side plate 28, and furthermore, as shown by the dashed line in FIGS. 2 and 5, the cover body 22 that covers the rear end surface of the processing chamber 16 is detachable. , and the processing cylinder 30
In order to facilitate removal of the cylindrical body 42 and cleaning of the inside of the processing chamber 16, the cover body 22 is formed large so that the upper end thereof reaches the upper part of the processing cylinder.

In this configuration, the grain culm whose root portion is held and conveyed by the feed chain 6 is threshed in the handling chamber 2 and discharged from the empty grain culm discharge port at the rear end of the handling chamber. 25 and released to the rear of the machine frame 1.

The threshed grains that are threshed in the handling room 2 and leaked through the crimp net 9 are sent to the chaff sheave 14 of the swing sorting device 10;
Grain sieve 13 shakes and sorts the grains, and at this time, the grains are also subjected to wind sorting by the wind blown up from the Karachi fan 17, and the fine grains are collected in the No. 1 receiving trough 18.

Objects to be processed, such as grains with branches and stalks on the oscillating sorting device 10, straw mixed with grains from the dust outlet 8 at the rear end of the handling chamber, and cut grains from the No. 4 socket 27, are subjected to oscillating sorting. As the device 10 swings, the grains are fed onto a sieve line 15 extending rearward at the rear end, and fall into the first receiving trough 18 under sieving action. The material that cannot be completely processed by the sieve line 15 is immediately taken into the lower circumferential side of the diffusion-type processing cylinder 30 located above it due to the cooperation with the wind from the sieve fan 17, and as it rotates, the processing cylinder 30 spirals. The material to be treated is loosened by the diffusion action of the blades 30', and the grains therein fall into the second receiving trough 19, and are transferred to the second reducing thrower passage 21.
It is returned to the handling room 2 through the On the other hand, for light objects such as waste straw, a suction port 34 opened in the side plate 32 of the processing chamber 16 on the opposite side of the processing cylinder 30 is disposed.
It passes through the suction blower 36 and is discharged from the exhaust port 37 of the case 35 to the rear outside the machine.

When removing only the processing cylinder 30 or the rotating support shaft 29 together with the cylinder 42, the cover body 22 must be removed.
The rear surface of the processing chamber 16 is opened wide by removing the processing cylinder 30. To remove only the processing cylinder 30, loosen the set bolt 41 from the hole 40 of the cylinder cylinder 38, and move the cylinder cylinder 38 onto the rotation support shaft 2.
At this time, there should be enough space 3 between the side plate 32 and the side plate 32 where the suction port 34 opens.
3, there is no problem when removing and installing the processing cylinder 30.

Furthermore, since only the processing cylinder 30 can be attached and detached while the cylinder body 42 and the rotational support shaft 29 are fixed to the side plate 32 in this way, drive-related parts such as the belt attached to the other end of the rotational support shaft 29 can be disassembled. There is no need,
This eliminates troubles during reassembly.

On the other hand, the rear of the processing chamber 16 is covered with a large cover body 22.
Since the side plate 28 is provided with a cut groove 45, the processing cylinder 30 can be attached to the processing chamber 16 while the processing cylinder 30 is assembled in the cylinder 42 and the rotation support shaft 29. It is removable, which greatly facilitates assembly and disassembly work, and by removing the cover body 22, maintenance and inspection work on the processing cylinder 30 becomes easier.

[Effect of idea]

As described above, in the present invention, for example, in the bottom handling type in which grain culm is supplied to the lower circumferential surface side of the handling cylinder, the second part of the swinging sorting device 10, which is the side where there is more waste from the dust exhaust port 8, Since the processing cylinder 30 is installed at the rear of the right-hand side position in Figure 2 with a length slightly longer than half of the screening air duct width,
A large amount of material to be processed can be rotated by the processing cylinder 30 to loosen the waste straw, and the grains mixed therein can be dropped into the No. 1 and No. 2 receiving troughs 18 and 19 and collected. Loss can be significantly reduced.

Then, the processing cylinder 30 is disposed so as to face the side plate 32 in which the suction port 34 is opened, with a space 33 in between, and the processing cylinder 30 is protruded from the other side plate 28 by an appropriate length. Since the processing cylinder 30 is detachably attached to the rotating support shaft, only the processing cylinder 30 can be removed, and maintenance and inspection of the processing cylinder 30 and the inside of the processing chamber 16 can be easily carried out.

Furthermore, the rotary support shaft can be left as it is during the work of attaching and detaching the processing cylinder, and there is also the effect that troubles such as poor assembly will not occur when reassembling them.

Further, as described above, the suction port 34 is connected to the processing cylinder 30.
Since the opening is opened in the side plate 32 so as to face the end face of the threshing machine with a space 33 between them, the machine frame 1 does not become elongated in the front and back direction of the swinging of the swinging device 10, and the threshing machine can be made smaller. It also has

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a vertical side view of the threshing machine, FIG. 2 is a sectional view taken along the - line in FIG. 1, and FIG. Figure 4 is an enlarged sectional view taken along the - line in Figure 2, and Figure 5 is an enlarged cross-sectional view of Figure 4.
It is a - line side view of a figure. 1... Machine frame, 2... Handling room, 3... Handling trunk, 4...
Axis line, 6...Feed chain, 8...Dust exhaust port, 1
0... Oscillating sorting device, 11... Sorting air path, 15...
... Sieve wire, 16 ... Processing chamber, 21 ... No. 2 reduction thrower passage, 28 ... Side plate, 32 ... Side plate, 33 ...
...Space, 34...Suction port, 35...Case, 36
...Suction blower, 29...Rotation shaft, 30...
Processing cylinder, 38... Trunk cylinder, 39... Boss portion, 41...
... Set bolt, 42 ... Cylindrical body, 43 ... Bearing, 44 ... Bracket, 45, 46 ... Cut groove, 48 ... Cover plate.

Claims (1)

[Scope of utility model registration request] A sorting device that swings in the axial direction of the handling cylinder is installed at the bottom of the handling room containing a handling cylinder whose axis is arranged horizontally along the grain culm conveyance direction. A processing chamber is formed which communicates with a dust exhaust port and an upper end of the sorting device, a suction port is opened in one side plate of the processing chamber, and an axis perpendicular to the handling cylinder axis is formed in the other side plate of the processing chamber. A rotary shaft having an appropriate length is provided toward the one side plate and protrudes by an appropriate length, and a processing cylinder is detachably mounted on the rotary shaft through a space appropriately separated from the suction port. A threshing machine made of