JPS6225322B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a series axial flow threshing machine in which a handling cylinder and a processing cylinder are arranged coaxially.

During threshing using a threshing machine, a large amount of waste materials such as straw waste, ear cuts, and hooks are generated during threshing in the handling room, and after these products are transported inside the handling room along with some of the grains, The dust is discharged from the dust outlet at the end and is sorted by a sorting device. Therefore, if this processing material is not transported and discharged smoothly, the handling room will become overloaded, resulting in reduced threshing and sorting efficiency and a large amount of grain loss. Work may have to be stopped due to deformation of the barrel or damage to the handling teeth. In particular, the threshing machine of a multi-row harvester generates a large amount of processed material, so conventionally, this type of threshing machine has a processing chamber installed in parallel with the processing chamber, and a processing chamber parallel to the processing barrel is installed in this processing chamber. A multi-barrel type threshing machine with a barrel is used, and is configured to lengthen the transfer path of the processed material so as to divide the processed material as finely as possible or separate the grains as much as possible during the transfer.

However, in conventional double-barrel threshing machines, the handling chamber and the processing chamber are installed in parallel, and the transfer path of the processed material from the entrance of the handling chamber to the dust exhaust port of the processing chamber is curved. Therefore, not only is it not possible to expect a satisfactory smooth transfer, but there is also a large number of idle spaces at the front and rear of the processing chamber, which increases the size of the machine, and the drive system between the handling cylinder and processing cylinder is complicated. There was a problem where the

The present invention has been made in view of the above points, and includes a processing chamber arranged at the rear of the handling chamber, a processing cylinder having a diameter smaller than that of the handling cylinder inside the processing chamber, and an axis coaxial with the handling cylinder. By installing straw racks on the upper side of this processing chamber and arranging a sorting plate on the lower side, the transfer route for the processed material is simplified, and the threshing and sorting efficiency is improved by smoothing the transfer and discharge of the processed material. The present invention provides a serial axial flow threshing machine which is designed to improve grain loss and reduce grain loss, as well as to downsize the machine and simplify the drive system.

Hereinafter, its configuration and the like will be explained in detail with reference to embodiments shown in the drawings.

FIG. 1 is a longitudinal cross-sectional view of a serial axial flow threshing machine according to the present invention, and FIG. 2 is a cross-sectional view along line AA of FIG. 1. In these figures, a frame 2 of a threshing machine 1 is integrally formed with a handling chamber 3 and a sorting chamber 4 extending from below to the rear, and a front plate 5 and a rear plate 6 of the handling chamber 3 are provided with grain culms. A supply port 7 for supplying grain to the handling chamber 3 and a discharge port 8 for discharging grain culm from the handling chamber 3 are opened, and an inlet funnel 9 is provided outwardly from the supply port 7. ing. In addition, handling room 3
A feed chain 11 is stretched along the handling chamber 3 on the outside of the handling opening 10 that opens to the side, and above it, a clamping spring 12 is used to extend the feed chain 11 toward the feed chain 11 side. A biased lever 13 is supported along the running end. Inside the handling chamber 3, a handling cylinder 15 having a large number of handling teeth 14 arranged on its circumferential surface is provided and is pivotally supported by a front plate 5 and a rear plate 6, and is inserted through the handling port 10. In the top-handling type threshing machine 1 that handles the tips of grain culms and threshes the grain by positioning it above the handling drum 15, the handling drum 15 has the following features:
The pulley 16 is rotated in the direction shown by arrow B in FIG. 2 by a drive device (not shown) to which the pulley 16 is connected. Further, below the handling cylinder 15 and on the side of the back of the paper in FIG.
7 is similarly stretched over a concentric arc-shaped mesh frame 18, and the upper part of the handling cylinder 15 is covered with a handling cylinder cover 19 that can be opened and closed.

On the other hand, inside the sorting chamber 4, there are side plates 20a on both sides,
Glenpan 20b as a bottom plate, No. 1 sorting shelf 20
c, a swinging shelf 20 formed in an inverted triangular box shape with a No. 20 sorting shelf 20d is supported and mounted on an eccentric cam 21 and a swinging arm 22, and the eccentric cam 2
It is configured to swing back and forth with one rotation. A grain sieve 23 and a sorting net 24 are continuously supported over the entire width of the swing shelf 20 above the opening at the lower end of the swing shelf 20. Further, below the base end of the swinging shelf 20, a winch 25 having a large number of blades on the circumferential surface and rotating in the direction shown by arrow C in the figure is mounted on a shaft. Two upper and lower air passages 26 and 27 are formed between the opening and the opening. In addition, below the lower ends of the first sorting shelf 20c and the second sorting shelf 20d,
A No. 1 helical conveyor 28 and a No. 2 helical conveyor 29, which are formed in a spiral shape, are each mounted on a shaft.

A processing chamber 30 having a smaller diameter than the handling chamber 3 is integrally formed in the frame 2 of the threshing machine 1 at the rear of the handling chamber 3. That is, both side plates of the frame 2 extend rearward, and the rear end portions are connected by a processing chamber rear plate 31, and this processing chamber rear plate 31 and the rear plate 6 of the processing chamber 3 as well as the rear plate 6 of the processing chamber 3 are connected at their rear ends. A processing chamber 30 is formed by the side plate 32 .
In the processing chamber 30, a processing cylinder 34 having a diameter smaller than that of the processing cylinder 15 and having a large number of processing teeth 33 disposed spirally on the circumferential surface is mounted on the same axis as the processing cylinder 15. . That is, the handling cylinder shaft 35, which is the central axis of the handling cylinder 15, extends to the rear plate 31 of the processing chamber and is pivotally supported, and the main bodies of the handling cylinder 15 and the processing cylinder 34 are detachably attached to the handling cylinder shaft 35. The processing cylinder 34 is rotatably mounted, and the processing cylinder 34 rotates in the same direction as the handling cylinder 15, as shown by arrow D in the figure.

The side plate 32 constituting the processing chamber 30
is formed with a large diameter so as to extend on the inner circumferential surface of the handling chamber 3 on the starting end side in the circumferential direction of the handling tooth 14 shown by arrow B in FIG. The semi-circumference on the terminal end side is formed into an arc concentric with the processing cylinder 34, which has a slightly larger diameter than the orbit of the tip of the processing tooth 33. At the top of the front end of this side plate 32,
A funnel-shaped dust inlet 37 is provided, which is an opening that communicates the exhaust culm 8 of the handling chamber 3 with the inside of the processing chamber 30, and a guide plate 38 forming a side plate of the dust inlet 37 is provided. , the front half faces into handling room 3.
Further, a discharge culm 39 is opened in the dust feeding port 37 in correspondence with the discharge culm 8 of the handling chamber 3 . Further, the side plate 32 of the processing chamber 30 is opened at the side and below the central part of the processing cylinder 34, and this opening has a processing chamber receiving screen 40 concentric with the processing cylinder 34.
is provided in a stretched manner on a net frame 41, and a dust exhaust plate 42 is provided at its terminal end to project obliquely downward. And, on the processing chamber rear plate 31,
Dust exhaust ports 43 are opened at the top and bottom of this dust exhaust plate 42.

Further, a chaff sheave 44 having a large number of through holes is provided at the upper end opening of the swinging shelf 20.
Between the chaff sieve 44 and the processing chamber reception screen 40, there is a sorting space 45 that communicates with the outside of the machine through the dust exhaust port 43.
is formed. Further, a second grain lifting machine 46 equipped with a plurality of blades is attached to the shaft end of the second spiral conveyor 29, and a second grain lifting machine 46 is connected to the exhaust side of a shell 47 surrounding it. Reduction port 49 of cylinder 48
is opened below the side plate 32 within the sorting chamber space 45. On the other hand, above the processing chamber 30, a waste straw chain 50 is stretched continuously from the feed chain 11. That is, a waste straw passage through which waste straw passes is formed above the processing chamber 30.

The operation of the serial axial flow threshing machine 1 configured as above will be explained. Grain culm, which is conveyed with its root portion held between the feed chain 11 and the clamping rod 13, is fed to the handling chamber 3 from the supply port 7 via the inlet funnel 9 with its tip portion, and then is fed to the handling chamber 3 through the handling tooth 14 of the handling barrel 15. The grain is threshed by The threshed grains pass through the mesh of the handling room receiving net 17 and fall onto the grain pan 20b, and then are sorted while being transferred to the grain sieve 23 and the sorting net 24 by the swinging of the swinging shelf 20. Further, when sliding on the No. 1 sorting net 20c, the pieces are carefully selected by the sorting wind generated by the winnower 25 and fall onto the No. 1 spiral conveyor 28. The fallen grains are transferred by the No. 1 spiral conveyor 28, then discharged outside the machine and collected.

On the other hand, during threshing, a large number of processed materials such as straw waste, ears of ears, and hooks are generated, and these processed materials are handled by the handling teeth arranged in a spiral shape on the circumferential surface of the handling cylinder 15 that rotates in the direction of arrow B. By the spiral action of 14, the handling cylinder 1
5 in the axial direction and reaches the end of the handling chamber 3. However, since a funnel-shaped dust inlet 37 that communicates the exhaust culm port 8 and the processing chamber 30 is opened here, the material to be processed is transferred from the handling chamber 3 to the processing chamber 30.
sent to. And, in this dust inlet 37,
An arc-shaped guide plate 38 is provided that is inclined toward the processing chamber side when viewed from the side, and the starting end of the side plate 32 of the processing chamber 30 is formed in a spiral shape as shown in FIG. , and is smoothly fed into the processing chamber 30 by the handling cylinder 15 and the processing cylinder 34, which rotate in the same direction. Then, while the processed material is transferred in the axial direction of the processing cylinder 34 by the processing teeth 33 of the processing cylinder 34, it is cut or the grains are separated, and a part of the processed material is separated from the separated grains. The processed material falls onto the chaff sieve 44 from the mesh of the processing chamber receiving screen 40. In addition, straw waste that does not pass through the mesh of the processing chamber receiving screen 40 is transferred by the screw 36, and is transferred to the dust outlet 43.
is ejected from the aircraft. And chaf sheave 4
The grains are separated from the processed material on the top 4 by the swinging of the chaff sieve 44, which is integrated with the swinging shelf 20, and fall through the holes onto the sorting net 24 to be sorted and collected. It becomes the so-called second item and falls from the end of the chaff sheave 44, and during this fall and after falling, while sliding on the second sorting shelf 20d, the Karakake 25
Light straw waste and the like are discharged from the dust outlet 43 to the outside of the machine. And the remaining 2
The grains fall onto the No. 2 spiral conveyor 29 and are transferred, are lifted up and transferred inside the No. 2 return cylinder 48 by the No. 2 lifting machine 46 at the end of the transfer, and are returned to the sorting space 45 from the return port 49. be done. And the reduced 2
The processed material joins the processed material on the chaff sieve 44, and the sorting process is repeated. In addition, when reducing the second product, since the reducing port 49 is opened at the starting end of the sorting space 45, falling of the grains and the processed material from the processing chamber receiving screen 40 is not obstructed. Furthermore, the grain culm, that is, the waste straw after threshing, is conveyed by the waste straw chain 50, and the waste straw is conveyed through the waste culm opening 8.
The so-called No. 4 grains taken out from the waste straw by the waste straw are separated during conveyance by the waste straw chain 50 and passed through the chaff sieve 44 along the circumferential surface of the processing chamber 30.
It falls to the top and is collected.

As is clear from the above description, according to the present invention, the processing chamber of the multi-barrel threshing machine is disposed behind the handling chamber, and both chambers are communicated through the opening at the upper front end of the processing chamber. By mounting the processing cylinder on the same axis as the handling cylinder, not only does the processing path for the processed material generated during threshing become longer, but also the processing path is straight from the entrance of the handling chamber to the exit of the processing chamber. Since the two chambers are skillfully communicated through the funnel-shaped opening, the transfer of the processed material becomes smooth, the threshing sorting efficiency is significantly improved, the recovery of grain is accelerated, and the amount of grain loss is reduced. can be done. In addition, since a waste passage is provided on the upper side of the processing chamber and a sorting plate is installed especially on the lower side, this sorting plate handles waste from the processing chamber and prevents leakage from the processing chamber. Can be sorted separately from objects. Additionally, compared to conventional threshing machines, the upper and lower sides of the processing chamber can be used more effectively, so the machine base can be made smaller, and the machine base can be configured more compactly.
The drive system for the handling cylinder and the processing cylinder can be simplified. Furthermore, if a dust exhaust port opening to the outside of the machine is provided at the end of the processing chamber, overload between the handling chamber and the processing chamber can be eliminated, and threshing and sorting efficiency can be further improved.

[Brief explanation of the drawing]

1 and 2 show an embodiment of a serial axial flow threshing machine according to the present invention, and FIG. 1 is a longitudinal sectional view thereof;
FIG. 2 is a sectional view along line AA in FIG. 1. 1... Threshing machine, 3... Handling room, 8... Culm spout,
15...handling cylinder, 30...processing chamber, 34...processing cylinder, 37...dust inlet.

Claims (1)

[Claims] 1. A processing chamber 30 having a dust exhaust port 37 in the upper front end that communicates with the exhaust culm of the processing chamber 3 is arranged at the rear of the processing chamber 3, and a processing chamber with a diameter smaller than the diameter of the processing cylinder 15 is installed in the processing chamber 30. This serial axial flow threshing machine is characterized in that the barrel 34 is mounted on the same axis as the handling barrel 3, a straw removal passage is provided above the processing chamber 30, and a sorting plate 44 is provided below.