JPH0536349Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Field of industrial application The present invention relates to a device for processing the second grain in a threshing machine for threshing grain culms.

(b) Prior art A threshing machine in which a swinging sorter is installed in the sorting air path extending from the bottom of the handling room to the dust sorting room, and a second processing section is installed on the second receiving gutter at the rear of the swinging sorter. 1986-
This is already known from Publication No. 77847.

(c) Problems to be solved by the invention In the known threshing machine, the first flow plate, which stands up diagonally from the first gutter in front of the second gutter, blocks the sorting air from the blower windmill. As a result, it is not possible to perform wind screening of the leakage from the second grain and the second processing section, and as a result, the second reduced product increases significantly, and when high-efficiency threshing is performed or wet grain is When the culm is threshed, the second reducing throat becomes clogged and the amount of the second reducing material increases.If this is returned to the handling room, the threshing performance and sorting performance will decrease, and if it is returned to the oscillating sorter, the amount of material to be sorted will increase. The number of particles increased abnormally, and the sorting performance deteriorated significantly.

(d) Means for solving the problem The present invention provides a second processing section in which a second processing cylinder is pivotally supported on a second receiving gutter at the rear of the oscillating sorter, and A cross-flow fan is installed at the bottom, and the cross-flow fan blows air up toward the second receiving net and opens to blow through to the dust outlet located diagonally rearward and upward, thereby removing leakage from the second receiving net. In addition to removing straw waste that is selected and mixed into the second processing section, the second processing section is blown with sorting air from a cross-flow fan to prevent clogging of the second receiving net. The above-mentioned problems were solved by wind selection.

(e) Action The materials to be sorted that have leaked into the oscillating sorter after being generated in the handling chamber are sieved and screened by the sorting net, and the straw waste, including the second grade materials, remaining on the sorting net is disposed of. It is transferred to the second processing cylinder and processed by the second processing cylinder.

At this time, the sorting air from the cross-flow fan screens the processed material leaking from the second receiving net, and is blown into the second processing section to screen the processed material being stirred by the second processing cylinder. Remove debris.

(F) Example An example of the present invention will be explained with reference to the drawings.
Reference numeral 1 denotes a threshing device mounted on one side of a machine base 3 having a traveling device 2, and on the other side, in order from the front, there is an operation panel 4, an engine 5, a driver's seat 6, and a grain tank 7.
A pre-processing device consisting of a reaping device 8, a vertical feeding device 9, and a lifting device 9a is installed at the front, and a straw processing device such as a cutter 10 (or a binding device) is installed at the rear. be.

In addition, the threshing device 1 has a handling cylinder 11 mounted on a shaft in a handling chamber 12 with the front part lowered, and extends from the rear half of the handling chamber 12 on the right side in the direction of movement to the peripheral edge of the dust sorting chamber 13. At the same time, a processing section 14 is provided whose front part is lower than the rear and handling chamber 12, and the processing section 14 is composed of a transfer chamber 14a at the front and a processing chamber 14b at the rear,
The transfer spiral 15 and the processing cylinder 16 are integrated and housed in the processing chamber 14b, and the front end of the processing shaft 17 is supported on the inlet plate 18, and the rear end is supported on the rear wall 19a of the processing chamber 14b via bearings 17a. The transfer chamber 14a and the handling chamber 12 are communicated through a dust inlet 20.

Furthermore, a feed chain 22 and a trapping rail 23 are installed along the handling port 21 on the left side in the direction of movement, and a receiving net 2
4, the swinging sorting body 25 is constructed from below to the dust sorting chamber 13. The swinging sorting body 25 extends from the bottom of the screen to the dust sorting chamber 13.
, a downwardly inclined flow plate 27a facing the lower surface of the transfer chamber 14a, and a wave-shaped transfer plate 27 facing the top of the receiving gutter 28.
b, a sorting net 29, and a second sorting net 29a facing above the second receiving gutter 30, and below the sorting net 29 and the second sorting net 29a are wind direction plates 32, 3, respectively.
2 is provided at the upper part of the rear side (grain tank 7 side) of the exhaust dust sorting chamber 13 and the blowing wind turbine 33 provided at the lower part of the corrugated transfer plate 26 and facing the rear end of the processing chamber 14b. The suction windmill 34 attached to the site constitutes a sorting air path, and the sorting air from the cross-flow fan 35 provided at the front part of the second receiving gutter 30 flows through the second sorting net 29a and the second processing section to be described later. second receiving net 31
The dust is blown out through the dust outlet a and into the dust exhaust port 36.

Furthermore, the desk-shaped cutter 10 is rotatably supported by a ladder-shaped frame 37 with a stem rising from the back machine stand 3, and the front side is locked to the machine wall of the threshing device 1. It is removably locked with a tool, and during reaping work, it is set in close contact with the rear surface of the dust sorting chamber 13 as shown in FIG. When taking out the grains, the locking tool is removed, the grains are rotated 90 degrees around the shaft support, and the clamps 39 are used to lock the grains to the frame 37. consecutive link 3
8 is supported.

Next, the configuration of each part will be explained.

[Threshing section] The conical part at the front of the handling barrel 11 has solid teeth 40 at the front end, and low linear teeth 40a at the rear.
Solid teeth 40b are implanted near the front of the cylindrical portion, normal linear handling teeth 40c are implanted in the subsequent portion, and linear teeth 40d are implanted in rows at narrow intervals at the terminal end. ... and solid teeth 40e... are planted alternately at intervals in the circumferential direction, and the receiving net 2
The plate 24a to which the front part of No. 4 is attached consists of a steeply sloped part at the front end and a gently sloped part 24b following it, and a large number of leakage holes 24c are bored in the gently sloped part 24b.

Further, grains scattered from the handling port 21 to the feed chain 22 side during the threshing process pass between the side wall and the transfer chamber 14a and fall onto the oscillating sorter 25 as shown by the arrow in FIG.

[Processing section] The processing cylinder 16 has a large number of solid-type processing teeth 1 on the outer peripheral surface thereof having a lead angle that allows the processing material to move backward.
6a..., and a processing tooth 16a... whose plate surface is orthogonal to the processing axis 17 is implanted in a portion corresponding to the discharge port 42, and the discharge port 42 is connected to the suction windmill 3.
The suction windmill 34 directly faces the suction port of No. 4.
is located above the oscillating sorting body 25 and sucks the dust sorting chamber 13 upward to improve the performance of sorting the first and second items, and is located at a lower level than the discharge port 42. Even if the straw waste is wet, it can be reliably sucked and discharged, and the processing body receiving net 41
is stretched from the outer middle part to the inner upper part as shown in FIG. 6 at a portion facing the processing cylinder 16.

Further, as shown in FIG. 4, a front guide plate 43 that is expanded toward the suction windmill 34 in plan view is connected to the front side of the discharge port 42 and the suction windmill 34. The waste thrown by the processing teeth 16a is sucked and discharged by the suction windmill 34, during which time it is air-selected, and the remaining grains fall and are collected.

At that time, as shown in FIG. 7b, the discharge port 42
On a support shaft 49a supported by the rear wall 19 near the lower part of the front guide plate 43 and a bracket 43a hanging from the front guide plate 43,
A large number of parallel spokes 49 are arranged in a comb-teeth shape, and the support shaft 49a is connected to the crank arm 49.
When driven by the processing shaft 17 through the spokes 49b and 49b and the rod 49c, when wet grain culms are threshed, straw waste with a large specific gravity is sieved by the spokes 49 without falling. The straw waste is reliably discharged outside the machine by the suction windmill 34.

Furthermore, the rear wall 19a of the processing chamber 14b can be attached and detached by bolts 45, 45, and the cutter 10 is turned 90 degrees toward the grain tank 7 to open the rear surface of the dust sorting chamber 13, and the bolts are removed. 45, 45 and the processing cylinder 16 is pulled out backward, the processing shaft 1
7 comes out from the sprocket 17b, and the processing cylinder 16, transfer spiral 15, and processing shaft 17 can be taken out as one piece.

Furthermore, the lower side of the transfer spiral 15 is covered with an iron plate 15b having a large number of leakage holes 15a, and the processing barrel receiving net 41 is divided into two at the inner lower part as shown in FIG. The divided portion is fixed to the through frame 44 to which the pipe is welded, and the through frame 44 is fixed to the through frame 44 to which the pipe is welded.
also supports the iron plate 15b as shown in FIG. 5, the front end is screwed to the entrance plate 18, the middle part is supported through the outlet plate 18a of the handling chamber, and the rear end is attached to the rear wall 19a. It is screwed on.

[Second processing section] The second processing section 31 is a second receiving gutter 3 stretched above the second receiving gutter 30 and at the rear of the second sorting net 29a.
1a and a second processing cylinder 31b that is mounted on a shaft in close proximity to the second sorting net 31a, and a windmill 34 is installed on the outer peripheral surface of the second processing cylinder 31b to suck the material to be processed.
A second processed tooth 31c with a lead angle is implanted to move the cross flow fan 3 to the opposite side.
5 is opened so as to pass through the second sorting net 29a and the second receiving net 31a.

Further, the shaft of the second processing cylinder 31b projects outward from the opening in the side wall, and this protrusion is supported by the casing 31d via a bearing and is equipped with a beater 31e. 3
When 1b is rotationally driven, it processes the material that has fallen into it, the grains leak through the second receiving gutter 31a and enter the second receiving gutter 30, and the second processing teeth 31c... process the material. At the same time, the straw waste is thrown away, and that is the dust exhaust port 3.
The straw waste collected on the second receiving net 31a is disposed of by the second processing tooth 31c having a lead angle. In the process, casing 31d
The beater 31e throws and discharges the straw waste from the discharge port opened toward the rear of the casing 31d, thereby reducing the amount of straw waste to be reduced.

[Grain discharging device and second reducing device] A grain lifting cylinder 46 is installed upright at the transfer end of the first receiving gutter 28, and the discharge portion at the upper end of this grain lifting cylinder 46 is connected to the upper part of the grain tank 7. A second reducing tube 47 is provided at the transfer end of the second receiving gutter 30 and faces diagonally forward and upward, and a throwing casing 47a is attached to the upper end of the second reducing tube 47. The discharge port opens onto the flow plate 27a of the swing sorting body 25, and the second grains transferred to the grain tank 7 side by the second transfer spiral 30a are lifted up in the second reduction cylinder 47. It is lifted by a feeding spiral, and thrown toward the flow plate 27a by a blade 47c fixed to the spiral shaft at the upper end and rotating counterclockwise when viewed from above. While being oscillated and transferred, the grains are sorted by specific gravity, and the grains become the lower layer, and light materials such as straw become the upper layer, colliding with the material to be sorted that is flowing down on the flat flow plate 27a. It is dispersed over a wide range over the entire width.

In addition, the intersection of the grain lifting cylinder 46 and the second reducing cylinder 47 is removably connected with a connecting metal 48 and screws, as shown in FIG. 18, so that the two form a framework through the machine wall. Grain raising cylinder 46 and second reduction cylinder 4
There are outlet ports 46a and 47 in the portion facing the base of 7.
d, and their outlet ports 46a, 47d
As shown in FIG. 15, the lids 50, 50 are removably screwed on, or as shown in FIG. The lids 50, 50 are attached so that the grains scraped from both can be received in one dish 51, and the outer periphery of the throwing casing 47a is The plate 47b is hinged at one end and screwed at the other end to form the 16th plate.
It can be opened and closed as shown in the figure.

[Processing chamber and fourth exit] The processing chamber 14b is the processing chamber 1 as shown in Figures 5 to 7.
2, and its front part is located near the bottom of the handling chamber 12, and behind the culm opening 52, its rear part is deviated toward the panicle side in plan view, and in side view. A straw removal conveyance device 53 consisting of a pair of horizontal and parallel conveyance chains is provided, and a fourth port 55 for collecting grains falling from grain culms conveyed by the straw removal conveyance device 53 is shown in FIGS. As shown in Fig. 13, the inner flow plate a hangs diagonally from the inside of the feed chain 22 toward the middle part of the width of the machine, the rear flow plate b hangs diagonally forward and downward from the rear, and the ear side of the straw conveying device 53. It is constructed by connecting an outer flow plate c that hangs down toward the inside of the machine wall from a part extending diagonally outward along the line 41 in a funnel shape. The oscillating sorting body 25 is blocked by the inner flow plate a.
The grains that fall into the feed chain 22 side and fall into the fourth port 55 fall to the side opposite to the feed chain 22 and are sorted.

Also, the distance L ₁ between the lower end of the inner flow plate a and the side plate near the processing cylinder 16 is set larger than the distance L ₂ between the other side plate, so that the sorting air from the blower windmill 33 is removed from the suction windmill 34 on the side away from the suction windmill 34 . It is designed to blow up a lot of air.

[Machine Frame] As shown in FIGS. 1 and 14, the machine frame of the threshing device 1 has left and right side plates 56, 56, an entrance plate 18, and a rear wall 19 formed by a diagonal dividing line 5 in which the rear part is higher than the front part.
7, and this parting line part is removably fastened with a plurality of screws 58, so that the swinging sorting body 2 is tilted so that the rear part is higher.
5 is supported on the lower machine frame, and the handling cylinder 11 and the processing cylinder 16
By pivotally supporting the upper machine frame so that the front part thereof is lower, the upper machine frame can be disassembled and the swing sorting section etc. can be easily maintained.

[Function] In the threshing device 1 for the combine harvester described above,
The stock end of the supplied grain culm is conveyed while being held between the feed chain 22 and the clamping rail 23, and the ear side is inserted into the handling chamber 12 through the supply port and threshed by the handling cylinder 11.

At that time, the inserted grain culm is rapidly moved to the rear by the solid teeth 40 at the starting end of the handling barrel 11, and the linear teeth 40a near the base of the conical part and the solid teeth 40b following it move the grain culm to the rear during the threshing stage. While suppressing the shedding of a large amount of grains all at once, the grains are shifted to the normal handling teeth 40c... and the grains are threshed almost evenly.
At the terminal end, linear teeth 40d are arranged in a row...
Solid teeth 40e having a lead angle lead the grain culm whose movement is suppressed by the linear teeth 40d while combing.
The waste straw is discharged from the culm discharge port 52, and while it is conveyed diagonally backward by the waste straw conveying device 53, the remaining stick particles are removed as described above. It falls into the mouth 55.

On the other hand, the grains and small straw waste leaking from the receiving net 24 and the leakage hole 24c fall onto the corrugated transfer plate 26 and flow plate 27a of the oscillating sorter 25 and are transferred and sorted.
The second product from the second reduction cylinder 47 collides with the entire width of the flow plate 27a, disperses and merges, and the grains are transferred to the blower 3.
The straw waste falls into the first receiving gutter 28 from the sorting net 29 while being screened by the sorting wind in step 3, and the straw waste including the second straw remaining on the sorting net 29 moves to the second sorting net 29a and is sieved. At the same time, it is selected by the sorting air from the cross-flow fan 35.

On the other hand, among the grain threshing that occurred in the handling room 12,
Long straw, ear cuts, etc. enter the transfer chamber 14a of the processing section 14 from the dust inlet 20, are centrifugally separated by the transfer spiral 15, are processed to some extent while being transferred, and are sent to the processing chamber 14b, and at the same time are The grain is leakage hole 1
5a..., and the processing cylinder 16 moves the material to be processed backward by processing teeth 16a... installed on its circumferential surface, while shedding the ears of grain and cutting the long straw, and converting it into single grains. The separated grains and finely divided straw waste leak from the processing body receiving net 41 and pass through the oscillating sorting body 2.
5 on the other side and are subjected to swing sorting.

During this time, the sorting air from the blower windmill 33 is blown through the sorting net 29 to sort out the most grains, and is collected by the inner flow plate a hanging diagonally toward the middle part of the width of the machine, as shown in FIG. , this passes through the processing chamber 14b from the processing cylinder receiving net 41, promotes the dispersion of the material to be processed, and then blows out from the discharge port 42 (a part of which is blown out from the processing cylinder receiving net 41), and is discharged from the rear end of the processing chamber 41b. The treated straw waste that has moved to the outlet is discharged from the outlet 42 by the treated teeth 16b that do not have a lead angle.
It is thrown towards the suction windmill 34 from the suction windmill 3
4 is air-sorted by a cyclone sorting wind constituted by a front guide plate 43 and a rear wall 19, and heavy items such as grains fall into the processing section 31 together with those transferred from above the second sorting net 29a, The second processing cylinder 31b processes the fallen objects with its second processing teeth 31c while rotating them, and sequentially transfers them to the suction windmill 34.

Further, the sorting air from the cross-flow fan 35 screens the waste material leaking from the second receiving screen 31a, and discharges straw waste from the dust outlet 36 below the divided flow plate 31f. It is blown into the second processing section 31 through the screen 31a, and while preventing clogging of the second receiving screen 31a, the material being stirred in the second processing section 31 is screened to separate straw waste. This and the straw waste thrown up by the second processing cylinder 31b are guided by the upper surface of the divided flow plate 31f and discharged from the dust outlet 36,
The straw waste left on the top is removed by the second processing tooth 31c as mentioned above.
..., and is thrown and discharged backward by the beater 31e. .

Further, the second material falling into the second receiving trough 30 is transferred to the second reduction cylinder 47 by the second transfer spiral 30a and is returned onto the fluid 27a of the swinging sorting plate 25.

(G) Effect of the invention As mentioned above, the present invention installs the oscillating sorting body 25 in the sorting air passage extending from below the reception screen 24 of the handling room 12 to the dust sorting room 13, and In a threshing machine in which a first receiving gutter 28 and a second receiving gutter 30 are arranged in that order, a second receiving gutter 31 is pivotally supported on a second receiving gutter 31a at the rear of the oscillating sorting body 25. A processing section 31 is provided, and a cross-flow fan 35 is provided at the front lower part of the second receiving net 30, and the cross-flow fan 35 blows up toward the second receiving net 31a and toward a dust exhaust port 36 diagonally rearward and upper. Since the opening is made to blow through, when the second material is introduced into the second processing section 31 and processed by the processing cylinder 31b, the material leaked from the second receiving net 31a is swept away by the sorting air of the cross-flow fan 35. The straw waste that is selected and falls into the second receiving gutter 30 and is not to be mixed in can be discharged out of the machine from the dust exhaust port 36.

In addition, the sorting air from the cross-flow fan 35 is blown into the second processing section 31 from the second receiving screen 31a, blowing away the straw waste in the material being sorted that is being stirred by the second processing cylinder 31b, and blowing it through the dust outlet. 36 to the outside of the machine, and even if the material to be processed is wet or the amount of material to be processed is large due to high efficiency threshing, clogging can be prevented.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a side view of the combine harvester, Figure 2 is a plan view of the same as above, Figure 3 is a vertical side view of the threshing device, Figure 4 is a vertical plane view of the same as above, and Figure 5 is a sectional view taken along line AA in Figure 4. ,
Figure 6 is a sectional view taken along line B-B as above, and Figure 7a is a cross-sectional view taken along line C-
C sectional view, Fig. 7b is a sectional view of another example of the same as above, Fig. 8
Figure 9 is a rear view, Figure 9 is a front view of the supply section of the handling chamber, Figure 10 is a side view with the processing cylinder removed,
Figure 1 is a sectional view of the processing shaft attachment device, Figure 12 is a sectional view taken along line DD in Figure 6, Figure 13 is a plan view showing the straw removal device and the fourth port, etc., and Figure 14 is the fried grain. FIG. 15 is a side view of a part of the same as above; FIG. 16 is a plan view of the upper part of the grain lifting cylinder; FIG. 17 is an exploded perspective view of the lower part of the grain lifting cylinder; Figure 18 is the 15th
Figure 19 is a perspective view of the cutter when it is rotated backward, Figure 20 is a rear view, and Figure 20 is a rear view.
FIG. 1 is a plan view showing the state in which the second object is released. 11 is a handling cylinder, 13 is an exhaust dust sorting room, 16 is a processing cylinder, 24 is a receiving screen, 25 is a swinging sorter, 29 is a sorting screen, 31 is a second processing section, 31a is a second receiving screen, 31
b is a second processing cylinder, 33 is a blower windmill, 34 is a suction windmill, and 36 is a discharge port.

Claims (1)

[Scope of utility model registration request] An oscillating sorting body 25 is installed in the sorting air path extending from below the receiving screen 24 of the handling room 12 to the dust sorting room 13, and below the oscillating sorting body 25, a first receiving gutter 28 and a second receiving gutter 30 are installed.
In the thresher, a second processing section 31 in which a second processing cylinder 31b is pivotally supported on a second receiving gutter 31a is provided at the rear of the swing sorting body 25, and the second receiving gutter 30 A cross-flow fan 35 is provided at the front lower part of the screen, and the cross-flow fan 35 blows air up toward the second receiving net 31a, and also opens a dust exhaust port 36 diagonally rearward and upward.
A second processing device in a threshing machine characterized by having an opening so as to blow through.