JPS61212224A - Threshing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (b) Industrial application field The present invention relates to a threshing machine that feeds shell culm and performs threshing processing.

(B) Conventional technology Conventionally, a processing chamber was provided on the side of the handling chamber, and the long straw and ear fragments generated in the handling chamber were processed with a processing cylinder inside the processing chamber, and the processed materials were immediately after the culm outlet of the handling chamber. The one that was designed to be discharged in
This is already known from Japanese Patent No. 5-176739.

(c) Problems to be Solved by the Invention In the known threshing machine, the processed material generated by threshing the wet husk falls into the most sorting section of the oscillating sorting body or in front of it. There were problems such as deterioration of the first sorting performance and second sorting performance and clogging of the sorting route.

(d) Means for Solving Problems The present invention provides a threshing machine in which a suction windmill is installed on one side of a dust sorting chamber at the rear of the handling chamber. The processing chamber is extended to a part facing the suction windmill, and a discharge port is provided in the part facing the suction windmill of the processing chamber, so that the processed material generated in the handling chamber does not fall into the middle part of the oscillating sorting body. While being processed by the processing cylinder, the straw waste is transferred to a part facing the suction windmill at the rear to prevent straw waste and ear pieces from falling into the oscillating sorting body, and the straw waste after processing is transferred to the part facing the suction windmill on one side. The grains are discharged from the discharge port opposite to the suction windmill, and the mixed grains are collected by air sorting by the suction wind formed in front of the suction windmill, thereby solving the above-mentioned problem.

(e) Of the grain threshing generated in the processing room, those that leak from the receiving net are transferred and sorted by a swinging sorter, and straw waste, ear cuts, etc. are introduced into the processing room that extends rearward from the handling room. The grains are then transferred to the part facing the suction windmill at the rear while being processed by the processing cylinder, during which time single grains and small straw waste leak from the processing cylinder receiving net onto the oscillating sorter. It is sorted by

The straw waste that has migrated to the end of the processing chamber is discharged from the discharge port toward the suction windmill, and the suction windmill suctions and screens the discharged straw waste in a face-to-face manner to remove a small amount of it. The remaining grains are separated and collected.

(f) Example An embodiment of the present invention will be described with reference to the drawings.

1 is a threshing device mounted on one side of a machine base 3 having a traveling device 2, and on the other side, an operation panel 4, an engine 5, a driver's seat 6, a grain tank 7, etc. are installed in order from the front. A pre-processing device consisting of a reaping device 8, a vertical feeding device 9, and a lifting device θa is installed at the front, and a straw processing device such as a cutter 10 (or a binding device) is installed at the rear.

In addition, the threshing device 1 includes a handling chamber 111 mounted on a shaft in a handling chamber 12 with the front part lowered, and a handling chamber 1111 on the right side in the direction of movement.
A processing section 14 is provided which extends from the rear half of the dust removal chamber 13 to the peripheral edge of the dust sorting chamber 13 and whose front section is lower than the rear and handling chamber 12. Room 1
4b, the transfer spiral 15 and the processing cylinder 1G are integrated and installed in the processing chamber 14b, and the front end of the processing shaft 17 is connected to the inlet plate 18, and the rear end is connected to the rear wall 19a of the processing chamber 14b. It is supported via a bearing 17a, and the transfer chamber 14a and the handling chamber 12 communicate with each other through a dust inlet 20.

Furthermore, a foot chain 22 and a pinch rail 23 are installed along the handling port 21 on the left side in the direction of travel, and the receiving fI! A swinging sorting body 2 installed from below I24 to the dust sorting chamber 13
Reference numeral 5 denotes a corrugated transfer plate 2θ that extends over approximately the entire width of the machine and faces the lower surface of the receiving gutter 24 when viewed from the side, a downwardly inclined corrugated plate 27a that faces the lower surface of the transfer chamber 14a, and a first receiving gutter 2. It consists of a wave-shaped transfer plate 27b and a sorting net 29 facing above, and a straw rack 31 facing above the second receiving gutter 30, and wind direction plates 32 and 32 are provided below the sorting net 29 and the straw rack 31, respectively.
A blower wind turbine 33 provided at the lower part of the corrugated transfer plate 26 and a part located above the back side (grain tank 7 side) of the waste sorting chamber 13 and facing the rear end of the processing chamber 14b. A suction windmill 34 attached to the filter constitutes a sorting air path, and the sorting air from a cross-flow fan 35 installed at the front of the second gutter 30 blows through the stroke rack 31 and is blown out to the dust exhaust port 36. ing.

Yet again. The desk-shaped cutter IO is rotatably supported by a ladder-shaped frame 37 that stands up from the rear machine stand 3, and the front side can be attached to and detached from the machine wall of the threshing device 1 with a locking device. During reaping work, it is set in close contact with the rear surface of the dust sorting chamber 13 as shown in Fig. 2, and when the dust sorting chamber 13 is maintained or the swinging sorting body 25 is removed. The locking tool can be removed and rotated 80 degrees around the shaft support to be locked to the frame 37 by the clamp 38, and the ladder-shaped frame 37 supports the rear part of the grain tank 7 with a connecting rod 38. are doing.

Next, the configuration of each part will be explained.

[Threshing section] The conical section at the front of the handling barrel 11 has solid teeth 40 at the front end.
・A low linear tooth 40a at the rear, a solid tooth 40b near the front of the cylindrical part, a fist, and a normal linear handling tooth 4Qc at the subsequent part, and at the end. are linear teeth 40d planted in rows at narrow intervals...and solid f.
The 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. A large number of leakage holes 24c are bored in the inclined portion 24b.

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

[Processing section] The processing cylinder 16 has a large number of solid processing teeth lea... having a lead angle for moving the processed material backward on its outer circumferential surface, and a plate surface has a processing axis at a portion corresponding to the discharge port 42. 17, the discharge port 42 directly faces the suction port of the suction windmill 34,
The suction windmill q4 is located above the oscillating sorting body 25 to suck the waste dust sorting chamber 13 upward to improve the wind sorting performance of the first and second items, and is located at a position lower than the discharge port 42. As shown in FIG. It is stretched across.

Further, a fourth
As shown in the figure, a front guide plate 43 is provided which is expanded toward the suction windmill 34 in plan view, and the processing tooth l
The dust thrown by the ea 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 this time, as shown in FIG. 7(b), a large number of parallel spokes 48 are supported on the support shaft 4Ja supported by the rear wall 19 near the lower part of the discharge port 42 and the bracket 43a hanging from the front guide plate 43. ... are arranged in a comb-like shape, and the support shaft 49
a to crank arm 49b, 49/l+ and rod 4
When driven by the processing shaft 17 through the spoke 9c, when a wet culm is threshed, straw waste with a high specific gravity is transferred to the spoke 4.
8..., the straw waste is sieved without falling, and the straw waste is reliably discharged outside the machine by the suction windmill 34.

Further, the rear wall 19a of the processing chamber 14b has a port angle of 45°4.
5, the cutter 10 is turned 90 degrees toward the grain tank 7 to open the rear surface of the dust chamber 13,
45.45 and the processing cylinder 18 to the rear, the front end of the processing shaft 17 is pulled out from the block 17b, and the processing cylinder 16, transfer spiral 15 and processing shaft 17 are pulled out.
can be taken out in one piece.

Yet again. The lower side of the transfer spiral 15 has a number of leak holes 1.
5a It is covered with an iron plate 15b having a fist Φ, and the processing shell receiving net 41 is divided into two parts at the inner lower part as shown in FIG. The penetrating frame 44 also supports the iron plate 15b as shown in FIG. The end is the rear wall 1
It is screwed onto 9a.

[Grain discharge device and second reducing device] - A grain lifting cylinder 46 is installed upright at the transfer end of the second receiving gutter 8, and the discharge part at the upper end of this grain lifting cylinder 46 is connected to the grain tank 7. It is open at the top and communicates with it, and at the transfer end of the second receiving gutter 30 there is a second reducing cylinder 47 that faces diagonally forward and upward, and a throwing casing attached to the upper end of this second reducing cylinder 47. The discharge port 47a opens onto the sieve 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 transferred to the second reduction tube 47. A vane 47c is lifted by a lifting spiral inside, and is fixed to the spiral shaft at the upper end and rotates counterclockwise when viewed from above.
The second grain is thrown toward the original plate 27a by the corrugated transfer plate 26, and while being oscillated and transferred by the corrugated transfer plate 26, it is sorted by specific gravity so that the grains are in the lower layer, and light materials such as straw waste are in the upper layer. Flat plate-like sieve plate 2 flowing down? It collides with the material to be sorted flowing down above a and is dispersed over a wide range over the entire width.

Further, the intersection of the grain lifting cylinder 46 and the second reducing cylinder 47 is the first
As shown in Figure 8, they are removably connected by a connecting metal 48 and screws, so that the two form a framework through the machine wall.
Outlet openings 48a and 47d are provided at the portions facing the bases of the grain lifting cylinder 4B and the second reduction cylinder 47, and the openings 46a and 47d are provided with lids 50 as shown in FIG.
．． 50 is removably screwed on, or as shown in Fig. 17, the upper part is screwed on, and a lid 50.50 with a rim 50a around the outer periphery for grains and hinged on the lower part is attached for cleaning. In this case, the grain scraped from both can be received in one tray 51, and the outer circumferential plate 47b of the throwing casing 47a is hinged at one end,
The other end is screwed on so that it can be opened and closed as shown in FIG.

[Processing chamber and fourth exit] As shown in Figs. 5 to 7, the processing chamber 14b is offset to the opposite side from the processing chamber 12, and its front part is located near the bottom of the processing chamber 12, and the processing chamber 14b is located toward the bottom of the processing chamber 12. At the rear of the culm 52, there is provided a straw removal conveyance device 53 consisting of a pair of conveyance checks 7 whose rear part is deviated toward the panicle side in a plan view and which is horizontal and parallel in a side view.
The fourth port 55 for collecting the grains falling from the culm conveyed by 3 is an inner base plate that hangs diagonally from the inside of the foot chain 22 toward the middle part of the width of the machine, as shown in FIGS. 6 and 13. a, the rear section plate hanging diagonally forward and downward from the rear, and the outer original plate C hanging down into the machine wall from the part extending diagonally outward along the ear side of the straw removal conveying device 53. The material to be sorted leaking from the processing body receiving net 41 is blocked by the inner original plate a and falls to the foot chain 22 side of the swinging sorting body 25, and is passed through the fourth port 55. The thorn grains that have fallen to the opposite side of the foot chain 22 are sorted out.

Further, the distance L+ between the lower end of the inner original sheet a and the side plate near the processing cylinder 16 is made larger than the distance L2 between the other side plate, so that more of the sorting air from the blower windmill 33 is blown up on the side away from the suction windmill 34. That's how it is.

[Machine Frame] As shown in FIGS. 1 and 14, the machine frame of the threshing device 1 has left and right side plates 58.5G, and the front wall 18 and rear wall 18 are formed by an oblique dividing line 57 in which the rear part is higher than the front part. It is divided into upper and lower parts,
Since this parting line and portion are removably fastened with a plurality of screws 58, the swinging sorting body 25, which is inclined so that the rear part is higher, is supported on the lower machine frame, and the handling cylinder 11 and processing cylinder are connected to each other. By pivotally supporting the upper machine frame 16 so that the front part thereof is lowered, the swing sorting section and the like can be easily maintained by disassembling the upper machine frame.

[Function] In the threshing device 1 of the combine harvester described above, the stock base of the supplied culm is connected to the foot chain 22 and the pinch rail 2.
3, and the ear side is inserted into the handling chamber 12 from the supply port and threshed by the handling cylinder 11.

At that time, the inserted 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 the conical part move the culm into the early stage of threshing. While suppressing the shedding of a large amount of grains all at once, the process is shifted to the normal handling teeth 4Qc... for approximately average shedding, and at the end, linear teeth 4 arranged in a row are used.
Solid teeth 40 having a lead angle lead the shell culm whose movement is suppressed by the linear teeth 40d while being combed by 0d...
e to promote discharge and remove the prickly grains, and remove the straw from the culm opening 5.
2, and while the straw is conveyed diagonally backward by the straw discharging device 53, the remaining stick grains fall into the fourth opening 55 as described above.

The grains and small straw waste that leaked from the first receiving gutter and the leakage hole 24c are transferred to the corrugated transfer plate 26 and the original plate 27 of the oscillating sorter 25.
The second material from the second reduction cylinder 47 collides with the entire width of the original plate 27a, disperses and merges,
The grains fall from the sorting net 29 to the first receiving gutter while being sorted by the sorting wind of the blower windmill 33, and the straw waste including the second grain remaining on the sorting net 29 is transferred to the straw rack 31. The waste is transferred to a sieve and sorted, and is also air-selected by the sorting air from the cross-flow fan 35, falls into the second receiving trough 30, and is transferred to the second reduction cylinder 47.

On the other hand, among the threshed grains generated in the handling chamber 12, long straw, ear scraps, etc. enter the transfer chamber 14a of the processing section 14 through the dust inlet 20 and are centrifugally separated by the transfer spiral 15, while being transferred. After being processed to a certain degree, the grains are sent to the processing chamber 14b, and at the same time, the grains leak through the leakage holes 15a and enter the processing cylinder 18.
The treated tooth 1 [1a ・
- While moving backwards, the ears are shed and the long straw is cut, and the single grains and finely divided straw waste leak from the processing trunk receiving net 41 and are transferred to the swinging sorter. 25 on the other side and are subjected to swing sorting.

During this time, the sorting air from the blower windmill 33 passes through the sorting net 29 and sorts out the most grains, and is collected by the inner original plate a hanging diagonally toward the middle of the width of the machine, as shown in FIG. This is the process chamber 1 from the processing body receiving net 41.
4b to facilitate dispersion of the material to be treated, and then exit to the discharge port 4.
2 (part of which is blown out from the processing barrel receiving net 41) and moved to the rear end of the processing chamber 14b is transferred from the discharge port 42 to the suction windmill 34 by the processing teeth tab--, which have no lead angle. The suction windmill 34 is used to screen the fj grains by a cyclone sorting wind formed by the front guide plate 43 and the rear wall 19, and the fj1 grains fall onto the straw rack 31 below and are collected. Debris, etc. are mainly sucked and discharged outside the machine by the suction windmill 34, and the remaining straw debris, etc. is selected by the sorting air from the cross-flow fan 35, and is discharged rearward from the dust exhaust port 36 by the straw rack 31. .

As shown in FIG. 7, the axis of the suction windmill 34 is located near the bottom of the discharge port 42 and lower than the processing shaft 17, so that the material to be processed can be smoothly transferred to the suction windmill 34, and the foot chain 22 can be moved smoothly. The lower part corresponds to the handling chamber 12 and communicates with the rocking sorter 25 through the outside of the treatment chamber 14b as shown in FIG. 5, so even if grains scatter from the handling port 21, they can be collected. I can do it.

(G) Effects of the Invention As described above, the present invention provides a threshing machine in which a suction windmill 34 is provided on one side of the waste sorting chamber 13 behind the handling chamber 12.
A processing chamber 14b having a gas discharge port 4 inside is extended from the opposite side to the suction windmill 34 to a portion facing the suction windmill 34.
2, large straw waste and ear pieces generated in the handling room 12 during grain threshing do not fall into the middle of the swinging sorter 25, etc., and can be stored in the processing room! 4b and moves backward while being processed by the processing cylinder 6, and when it is discharged from the discharge port 42, the suction windmill 34 facing it suctions it across the oscillating sorting body 25. Therefore, even if the objects to be sorted are wet, the amount of objects to be sorted may become abnormally large on the oscillating sorting body 25, or it may stagnate.
There is no clogging, and high-performance sorting can be maintained under stable sorting conditions for things leaked from the receiving net 24 in the handling room 12.

In addition, since the suction windmill 34 also sucks the discharge port 42 while sucking the dust sorting chamber 13, the treated straw waste discharged from the discharge port 42 is guided in the horizontal direction and is wind-selected, so that only a small amount The remaining grains can be reliably collected.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a side view of the combine harvester, Fig. 2 is a plan view of the same, Fig. 3 is a longitudinal side view of the threshing device, and Fig. 4 is a longitudinal sectional view of the same. Figure 5 is a cross-sectional view taken along line A-A in Figure 4, and Figure 6 is a cross-sectional view taken along line B-B in Figure 4.
Figure 7(a) is a sectional view taken along the line C-C as above, Figure 7(b) is a sectional view of an example of the same value as above, Figure 8 is a rear view, Figure 9 is a front view of the supply section of the handling room, Figure 10 is a side view with the processing cylinder removed, Figure 11 is a cross-sectional view of the processing shaft attachment device, Figure 12 is a cross-sectional view taken along line D-D in Figure 6, and Figure 13 is a cross-sectional view of the straw conveying device and No. 4. A plan view showing the opening etc., Fig. 14 is a side view of the grain lifting cylinder and the second reduction part side, Fig. 15 is a side view of a part of the same, Fig. 16 is a plan view of the upper part of the grain lifting cylinder, and Fig. 17 The figure is an exploded perspective view of the lower part of the grain lifting cylinder, Fig. 18 is a view taken in the direction of arrow E in Fig. 15, Fig. 18 is a perspective view of the cutter in a state where it has been retracted and rotated to the rear, and Fig. 20 is a rear view. FIG. 21 is a plan view showing the second object release state.

Claims (1)

[Claims] In a threshing machine equipped with a suction windmill 34 on one side of the waste sorting chamber 13 behind the handling chamber 12, the processing chamber 1 has a processing barrel 16 inside.
4b extends from the side opposite to the suction windmill 34 to a part facing the suction windmill 34, and a discharge port 42 is provided in the part of the processing chamber 14b facing the suction windmill 34.