JPH0518922Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a handling barrel of a threshing machine for threshing grain culms.

(B) Prior art Conventionally, a threshing machine in which linear teeth were installed in a spiral shape near the end of the handling barrel and a dust inlet was provided only in the area facing the linear teeth was disclosed in Japanese Patent Application Laid-Open No. 58-193618. This is already known from the publication No.

(c) Problems to be solved by the invention In the known threshing machine, the linear teeth installed at the rear of the handling chamber have a spiral shape, so that the straw waste between the linear tooth rows is absorbed by the linear teeth. Because the straw tends to flow along the rows, the stuck grains and ear pieces may be discharged together with the straw waste, and the discharge force to the dust outlet is weak.

In addition, when performing high-efficiency threshing, such as when harvesting and transporting grain culms with five or more rows using a combine harvester, or when threshing wet grain culms, a large amount of straw waste may be generated in the handling room. This caused clogging due to the occurrence of grain breakage and ear breakage, resulting in an overload on the handling drum, resulting in a decrease in the rotational speed of the handling drum, which resulted in a decline in threshing performance and sorting performance.

(ii) Means for solving the problem In this device, in a threshing machine in which a threshing drum is mounted on an axis within a threshing chamber, linear teeth with narrow spacing are planted around the periphery of the rear end of the threshing drum, and a dust outlet is provided near the rear of the threshing chamber, the linear teeth are arranged in a row along the axial direction of the threshing drum, and the dust outlet is open from the part opposite the linear tooth row to the part opposite the threshing tooth in front of that, thereby making it possible to discharge the dust material from the wide dust outlet with high efficiency by the threshing teeth and the linear tooth row, which has high discharge performance, without reducing the threshing performance of the threshing teeth, thereby solving the above-mentioned problem.

(e) Effect The stock part of the grain culm that is harvested and transported is transported while being held by the feed chain and the clamping rail.
The panicle side is inserted into the handling chamber and is shelved by the handling teeth of the handling cylinder.

At the end of the handling chamber, a row of linear teeth approximately parallel to the axial direction of the handling barrel reliably catches straw waste, pieces of ears, etc. and discharges them toward the dust outlet. The teeth thresh the grain at the part that comes into contact with the grain culm while discharging the dust from the opposite dust outlet, which enables high-performance threshing and prevents clogging in the handling chamber even if the grain culm being threshed is wet. It never occurs.

(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 terminal end of the dust sorting chamber 13. 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 pinching rail 23 are installed along the handling opening 21 on the left side in the direction of movement, and the 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 stroke rack 31 facing above the second gutter 30, and below the sorting net 29 and the stroke rack 31 are wind direction plates 3, respectively.
2 and 32 are provided, and a blower wind turbine 33 is provided at the lower part of the corrugated transfer plate 26, and an upper part of the rear side (grain tank 7 side) of the waste sorting chamber 13 and the processing chamber 14b is provided.
A suction windmill 34 attached to a part facing the rear end
constitutes a sorting air passage, and the sorting air from a cross-flow fan 35 provided at the front of the second receiving gutter 30 blows through the stroke rack 31 and is blown out to 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
Supported through 8.

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.
A solid tooth 40b... is implanted near the front of the cylindrical part, and a normal linear handling tooth 40c... is implanted in the subsequent part, and at the end part, 1/3 of the longitudinal spacing between the handling teeth 40c... Linear teeth 40d and solid teeth 40e are planted alternately at intervals in the circumferential direction and in rows substantially parallel to the axial direction of the handling cylinder 11, As shown in FIGS. 3 and 4, the dust inlet 20 is a part of the handling teeth 40c (four teeth in this example) that are implanted in a spiral form from a part facing the linear teeth. It is open for a period of
The receiving plate 24a to which the front part of the receiving net 24 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 16b 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 suctioned 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.

[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. and is widely dispersed 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, 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 One end of the plate 47b is screwed, and the other end is screwed 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 in the combine harvester described above, the stock base of the supplied grain culm is connected to the feed chain 2.
2 and pinching rails 23, and the ears are inserted into the handling chamber 12 from 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 installed in rows parallel to the axial direction of the handling barrel comb out the stinging grains as if using a comb perpendicular to the culm direction, and the grains are combed out in the handling chamber 12. The handling teeth 40c, which are located near the rear and have a shedding action when they come into contact with the grain culm, discharge some of the grains, ears of ears, straw waste, etc. generated in the process toward the front side of the dust inlet 20, The row of linear teeth 40d... receives the particles and reliably introduces and discharges them into the dust inlet 20.

Immediately after the linear teeth 40d have combed out the grains as the handling cylinder 11 rotates, the solid teeth 40e lock the grain culm and open the culm discharge port 5.
While the waste straw that is extruded and transferred towards the culm 2 and discharged from the discharge culm port 52 is conveyed diagonally backward by the waste straw conveying device 53, the remaining stick grains fall into the fourth port 55 as described above. do.

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 from the sorting net 29 into the first receiving gutter 28 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 straw rack 31 and is sieved. At the same time, it is sorted by the sorting wind from the cross-flow fan 35 and falls into the second receiving gutter 30,
It is transferred to the second reduction cylinder 47.

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 screen 41), and is blown out from the processing chamber 14b at the rear end of the processing chamber 14b. 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 selected by a cyclone sorting wind composed of a front guide plate 43 and a rear wall 19, and the grains fall onto the lower straw rack 31 and are collected. The remaining straw waste is sucked out of the machine by the cross flow fan 3.
The dust is sorted by the sorting air from 5 and discharged rearward from the dust exhaust port 36 in the straw rack 31.

(g) Effects of the invention As described above, the present invention includes the handling cylinder 11 mounted internally in the handling chamber 12, and linear teeth 40d with narrower intervals implanted on the peripheral surface of the rear end of the handling cylinder 11. In a threshing machine having a dust inlet 20 near the rear of the handling chamber 12, the linear teeth 40d are arranged in a row along the axial direction of the handling barrel 11, and the dust inlet 20 is arranged in a line. Since the opening extends from the part facing the tooth row to the part facing the handling tooth 40c in front of it, it is possible to thresh with high efficiency.
Alternatively, even if a large amount of straw waste etc. is generated in the handling chamber due to threshing of wet grain culms, a part of the handling teeth of the handling barrel 11 acts as a threshing function and removes the straw waste etc. to the dust feeding port 20.
At the rear, linear teeth 40d planted in a row catch the straw waste, etc., and send it to the dust outlet 20.
As a result, the handling cylinder 11 is not overloaded and the rotational speed of the handling cylinder is not reduced, and even if the threshing conditions are bad, the threshing performance is prevented from decreasing, and it works in conjunction with the normal handling cylinder. It is possible to maintain the operating speed of the oscillating sorter, windmill, etc. at a substantially predetermined level and perform good sorting.

[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 longitudinal side view of the threshing device, Figure 4 is a longitudinal plane view of the same as above, and Figure 5 is a sectional view taken along line A-A 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, 12 is a handling room, 16 is a processing cylinder, 20
is a dust inlet, 24 is a receiving net, 25 is a swinging sorter, 40
c is a handling tooth, 40d is a linear tooth, and 40e is a solid tooth.

Claims (1)

[Scope of utility model registration request] The handling cylinder 11 is installed inside the handling chamber 12 by axially mounting the handling cylinder 12, and linear teeth 40 with narrow intervals are provided on the peripheral surface of the rear end of the handling cylinder 11.
In a threshing machine in which a dust feeding port 20 is installed near the rear of the handling chamber 12, the linear teeth 40d are arranged in a row along the axial direction of the handling barrel 11, and the dust feeding port 20 is installed near the rear of the handling chamber 12. A dust feeding device for a thresher, characterized in that the dust feeder 20 is opened from a portion facing the linear tooth row to a portion facing the handling teeth 40c in front thereof.