JPH10304757A - Waste straw discharging device for threshing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To open a waste straw guid plate for flowing-down and guiding waste straw which falls from a feed chain, to the outside of the threshing machine integratedly with a feed chain so as not to be an obstacle at the time of maintenance at the time of work in the threshing. SOLUTION: In the configuration of a waste straw discharge device, the feed chain 1 for carrying grain culms at the time of threshing, a chain rail 2 for sliding and guiding the chain 1, a chain cover for covering the outer side surface of them and a belt cover which is provided in the lower part of the chain cover so as to cover the outer side surface of a transmission belt 4 for driving respective actuating parts are provided and the waste straw guiding plate 6 for flowing-down and guiding waste straw which falls from the feed chain 1 to the outside of a machine body by evading the transmission belt 4 is provided integratedly with the chain rail 2 in the threshing machine by which the feed chain 1 is closed and opened to a machine outside part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a straw waste discharging device for a threshing machine, and more particularly to a straw waste guiding plate for receiving and flowing down straw falling from a feed chain during threshing and discharging the same to the outside of the machine quickly. And can be used for combine harvesters, self-propelled threshing machines, stationary threshing machines, etc. as agricultural work machines.

[0002]

2. Description of the Related Art Grain stalks to be threshed are transported in a state where they are pressed by a feed chain by a holding rod, so that small straw chips are liable to be generated. Because of the rotation speed of the swarf, small straw chips generated during the threshing process are easily scattered, etc., and these straw chips fall down from the feed chain and fall onto a transmission belt stretched under the chain. When doing so, in order to cause various obstacles such as slipping of the belt due to the straw waste and clogging of the pulley with the straw waste, a straw waste guide plate for guiding the falling straw waste downward so as to avoid the transmission belt is provided. Conventionally, however, this straw waste guide plate is generally fixed to the frame of a threshing machine.

However, in the case where the straw waste guide plate is fixed to the machine frame in this way, even when the feed chain is opened to the outside of the machine, the straw waste guide plate remains and blocks the open space. When performing maintenance work on the transmission belt, the swinging sorting shelf, the sorting room, etc., including the attachment and detachment of the threshing receiving net, the straw waste guide plate hinders the operation.
In addition, since the feed chain tends to hang obliquely by weight due to cantilever support at the time of opening and closing thereof, a cover plate closing the open space for maintenance as a constituent member provided integrally with the chain is provided. There is a problem in that a net holding plate or the like for holding the threshing receiving net out of contact with the straw waste guide plate is deformed or damaged.

Therefore, the present invention provides a straw waste guide plate that can be opened and closed integrally with a chain rail.

[0005]

According to the present invention, there is provided a feed chain 1 for transporting grain culm during threshing, a chain rail 2 for slidingly guiding the chain 1, a chain cover 3 for covering these outer surfaces, A threshing machine capable of opening and closing the feed chain 1 to the outside of the machine, the belt cover 5 being located below the chain cover 3 and covering the outer side surface of the power transmission belt 4 for driving each action unit. A straw waste guiding plate 6 for integrally guiding the straw waste falling down from the chain rail 2 to guide the waste falling down to the outside of the machine avoiding the transmission belt 4. .

[0006]

With the above arrangement, the chain rail 2 on which the feed chain 1 is stretched is placed above the transmission belt 4 on the chain 1.
The straw chip guide plate 6 covering substantially the pinching area during grain culm transfer is integrally formed with a repose angle at which straw chips can flow down, so that the feed chain 1 can be moved from the feed chain 1 to the inside of the chain cover 3 during threshing. The straw waste falling along the straw waste guide plate 6 is received, and the upper surface of the straw waste guide plate 6 is flowed down and guided by the transmission belt 4.
For example, it is possible to make the gap between the power transmission belt 4 and the belt cover 5 drop and quickly discharge the waste to the outside by avoiding the fall of the straw waste. Also, during maintenance,
Since the straw waste guide plate 6 can be opened to the outside of the machine integrally with the feed chain 1 to secure a sufficient open space, the transmission belt 4, the swing sorting shelf, The checking work of the sorting room and the like can be performed very easily.

[0007]

As described above, the straw chips falling from the feed chain 1 at the time of threshing are guided down the upper surface of the straw chip guide plate 6 covering the upper part of the transmission belt 4 and discharged out of the machine. By opening the waste guide plate 6 integrally with the feed chain 1 to secure a sufficient open space, maintenance work on the transmission belt 4, the swing sorting shelf, the sorting room, etc., including the attachment and detachment of the threshing receiving net, can be performed. Since the operation can be performed extremely easily, the maintenance work is performed even when the feed chain 1 is opened as in the related art, even when the feed chain 1 is opened, as in the case where the straw waste guide plate 6 is fixed to the machine frame. When the operation cannot be performed sufficiently, or when the feed chain 1 is opened and closed, the chain rail 2 supported by the cantilever hangs down, so that the components that open and close together with the chain 1, such as a cover plate that closes an open space and a threshing receiving net There is no possibility that the mesh holding plate or the like that suppresses slipping out and the straw waste guide plate 6 are in contact with each other and deformed or damaged, and the chain rail 2 and the straw waste guide plate 6 are integrally opened and closed to prevent obstacles during maintenance work. It is possible to prevent problems caused by the solution and interference with the constituent members.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. The threshing machine D has a threshing chamber 7 on the upper side, a dust treatment chamber 8 on the rear side of the threshing chamber 7, and a sorting chamber 9 on the lower side. The threshing room 7 is provided with an inlet side plate 10 at the inlet side of the main body for supplying the grain culm, and the inlet side plate 10 forms a conveying passage a for threshing cereal culm by a large U-shaped notch. A transport passage a formed by a cutout similar to the inlet side plate 10 at the outlet side of the threshing chamber 7
Is formed, and the handling cylinder 12 is supported by the inlet side plate 10 and the outlet plate 11.

[0009] The handling cylinder 12 has a tooth handling 1 for threshing a grain stalk.
2a are arranged and implanted, a middle plate 13 is arranged near the inside of the outlet plate 11, and the middle plate 13 and the inlet side plate 1 are arranged.
A threshing receiving net 14 that divides the lower side and the rear side of the handling cylinder 12 into two parts between 0 and 0 is detachably supported and configured. Dust treatment cylinder 1 for reprocessing threshed by threshing cylinder 12
5 is a small-diameter cylinder 15a on the entrance side and a large-diameter cylinder 15b on the exit side with the middle plate 13 in the dust treatment chamber 8 as a boundary, and extends from the entrance side plate 10 to the exit side plate 16 on the main body exit side. The bearing is supported and arranged in parallel behind the handling cylinder 12.
The small-diameter cylinder 15a of the dust processing cylinder 15 has a function of diffusing threshing toward the inlet side, and the large-diameter cylinder 15b has a function of reprocessing and discharging threshing.

In the threshing room 7, large straw chips and the like which do not leak from the threshing receiving net 14 are roughly sorted and sent to the dust treatment chamber 8 by a plurality of dust sorting bars 17 arranged at appropriate intervals.
The middle plate 13 and the outlet plate 11 are welded in the form of a ladder along the surface of the threshing receiving net 14 or joined by bolts or the like, so as to form a box shape having mutually increased rigidity. Threshing room 7 and dust treatment room 8
A handle cylinder cover 18 covering the upper part of the main body is provided so as to be opened and closed,
On the front side of the handle cylinder cover 18, a holding rod 19 for pressing and holding the transported grain culm from above is provided by being resiliently biased, and the feed chain 1 which is pressed and held on the holding rod 19 from below to convey the relative position. Arrange and configure.

A chain rail 2 for winding and guiding the feed chain 1 is extended, and a driven sprocket 20 is provided at an inlet end of the chain rail 2 and a driving sprocket 21 is provided at an outlet end thereof. An adjusting sprocket 22 for adjusting the play to an intermediate position on the non-operating side of the chain 1 is supported, and the driving sprocket 21 is connected to the chain 1.
It is configured to be detachably connected to the drive transmission joint 23.

A front side plate 24 and a rear side plate 25 are provided at the front side and the rear side of the sorting room 9, respectively, and the upper cutout portion of the front side plate 24 and the region above the front side plate 24 are provided outside the threshing receiving net 14. An open space b of a size necessary for taking out the hopper and cleaning the swinging sorting shelf 26 and the like is provided, and a cover plate 27 closing the open space b and the chain rail 2 are arranged at appropriate intervals. And is integrally formed by the supporting frame 28.

On the chain rail 2, the straw waste falling from the feed chain 1 is caused to flow down the inclined upper surface having a repose angle over a substantially grain culm holding region of the chain 1, and is guided and discharged outside the machine. The guide plate 6 and the net holding plate 29 for locking the detached end of the threshing receiving net 14 are fixed to each other by the support frame 28, and the chain cover 3 that covers the outer surface of the feed chain 1 while leaving the working portion of the feed chain 1 is removed. Install and configure.

A chain rail 2 on which the feed chain 1 is stretched and a cover plate 27 provided integrally with the chain rail 2 are supported by a pivot shaft 30 provided near the entrance side of the front plate 24 as a fulcrum. The components such as the straw waste guide plate 6, the net presser plate 29 and the chain cover 3 are pivotally mounted to the outside of the machine so as to be openable and closable, and the transmission joint 23 is detached when the feed chain 1 is opened and closed. .

In the sorting room 9, an oscillating sorting shelf 26 for performing specific gravity sorting of thresh leaked from the threshing receiving net 14 is provided.
It is provided in a region from the entrance end to the exit end of the rocking sorter. The first spiral 32 for laterally feeding the first grain selected by specific gravity sorting and the wind sorting, and the second spiral 33 for horizontally feeding the second product are provided.

A dust exhaust fan 34 for discharging threshing dust to the outside of the apparatus by a sirocco fan or the like is provided above the lower side of the swinging sorting shelf 26, and a fan exhaust port 3 is provided by an upper cover and a lower guide.
4a is formed and provided, and a culm cutter 35 for cutting the culm by a large number of opposed disk blades and discharging the culm to the outside of the machine is provided on the outlet side plate 16 of the main body. A culm transport chain 36 for conveying the threshed culm is extended from the rear end of the threshing chamber 7.

As shown in FIG. 6, a transmission path for transmitting these is provided below the inlet of the feed chain 1 by supporting a threshing counter shaft 37 for supplying power to the entire threshing machine D.
From the main driving pulley 38 fixed to the counter shaft 37 to the first pulley 40 fixed to the first spiral 32 via the tension pulley 39, from the first pulley 40 to the second spiral 33 via the tension pulley 41. Second pulley 4 with shaft
2 from the second pulley 42 to the branch drive pulley 45 fixed to the branch drive shaft 44 of the speed change drive case 43 for driving the dust discharge fan 34 and the feed chain 1 respectively. A single transmission belt 4 is wound around the main drive pulley 38 via the main drive pulley 38, and a belt 49 is stretched from a swing drive pulley 47 fixed to the branch drive shaft 44 to a swing pulley 48. . (Refer to FIG. 1) In addition to this transmission path, the power is transmitted from the threshing counter shaft 37 via the bevel case 50 to the dust removal processing cylinder 15 and the handling cylinder 12, and further discharged from the handling cylinder shaft 12b of the handling cylinder 12. It is transmitted to the culm transport chain 36. Further, the power is transmitted from the threshing counter shaft 37 to the Karamin 31 and the branch drive shaft 44
And the transmission belt 4
And a belt cover 5 that covers the outer surface of the belt 49 and the like is arranged below and in contact with the chain cover 3 in a vertically divided state.

The thresh processed in the threshing room 7 by the handling drum 12 and leaked from the threshing receiving net 14 and the processed material reprocessed in the dust processing chamber 8 are subjected to the swing sorting shelf 2 in the sorting chamber 9.
6, the first kernel and the second grain selected by the specific gravity sorting by the rocking sorting shelf 26 and the wind sorting by Karamin 31 are fed by the first spiral 32 and the second spiral 33, Each is transported to a Glen tank and a sorting room 9 outside the machine. The sorted dust and the dust from the dust processing chamber 8 are discharged to the outside of the apparatus by a dust discharging fan 34.

At the time of such threshing operation, the straw chips generated from the stalks held and conveyed by the feed chain 1 and the holding rod 19 and the straw chips diffused by the peripheral speed of rotation of the handling cylinder 12 are fed chain 1. The falling straw chips fall along the inside of the chain cover 3 and fall into the chain 1.
, Falls on the inclined upper surface of the straw chip guide plate 6 that covers the upper side of the transmission belt 4, and is quickly discharged outside the machine through the space between the drive belt 4 and the belt cover 5.

During these operations, the threshing receiving net 14
When it becomes necessary to take out the outside of the machine or to clean the swinging sorting shelf 26, a lid plate 27 closing the open space b in the upper area of the front side plate 24 of the sorting room 9, The straw waste guide plate 6, the net holding plate 29, and the chain cover 3, which are integrally formed with the chain rail 2 together with the chain rail 27, are opened to the outside of the machine with the rotation support shaft 30 as a fulcrum in a state in which the feed chain 1 is wound and mounted. Open space b for extracting the threshing receiving net 14
Is in an open state without obstruction, the net 14 is detached from the entrance side plate 10 and the middle plate 13 of the threshing room 7, can be easily pulled out to the front side, and is caught or accumulated on the swing sorting shelf 26. Can be easily removed.

As described above, the straw waste guide plate 6, the lid plate 27, the net holding plate 29 and the like together with the chain rail 2 can be opened and closed to the outside of the machine. The lid plate 27 and the net presser plate 29 that are opened and closed together by the hanging of the chain rail 2 that is opened and closed, and the straw waste guide plate 6 that is fixed to the machine frame interfere with the adverse effect of being deformed or damaged. Can be prevented.

As shown in FIG. 7, the holding rod 19 for holding the cereal stem in opposition to the feed chain 1 is capable of mutually bending a plurality of holding single rods 51 having an inverted U-shaped cross section. Each of the holding single rods 51 is individually resiliently biased by a spring 52 and assembled into a holding holder 53, and the holding holder 53 is attached to left and right holding brackets 54 fixed to both sides of the front end of the handle cylinder cover 18. Install and configure.

An elastic dustproof seal 55 made of urethane rubber or the like is provided inside each of the holding single rods 51 of the holding rod 19.
The front end of the seal guide 56a and the rear end of the seal guide are bent so that the upper end thereof is brought into close contact with the handle cylinder cover 18 and the lower end is bent toward the threshing chamber 7 so as not to interfere with the teeth 12a and the feed chain 1. 56b to be attached and divided. (See FIGS. 1 and 3) As described above, in the holding rod 19 in which the holding single rod 51 is divided individually and the dustproof seal 55 is attached, the action of bringing the upper side of the dustproof seal 55 into close contact with the handling cylinder cover 18 The lower portion is bent toward the threshing chamber 7 to return the thresh to the interior of the threshing chamber 7, thereby preventing the scatter of paddy and dust outside the machine, and the seal 55 when the handling drum cover 18 is opened and closed. Interference with the feed chain 1 and the like can be avoided by bending the lower side.

As shown in FIG. 8, in the threshing chamber 7, an auxiliary plate 11 and an intermediate plate 13, which support the outlet side of the handling cylinder 12 and the threshing receiving net 14, respectively, are joined to each other at the front ends thereof. The front side plate 57 and a ladder-shaped dust separation / sorting bar 17 joined along the threshing receiving net 14 are formed in a box shape, and the outlet side end of the auxiliary front side plate 57 is connected to the front of the separation chamber 9. The side plate 24 is joined to the rising edge 24a of the upper cutout portion.

The lower half of the auxiliary front side plate 57 is
By providing the space portion c while leaving the rib portions 57a at both ends, the space portion c serves as a cleaning port when the feed chain 1 is opened. In this way, the outlet plate 11 and the middle plate 13 are separated from the dust sorting bar 17 and the auxiliary front plate 57.
By reinforcing the joints through the joints, it is possible to enhance the bending in the horizontal direction, and further, by reinforcing the joints with the front side plate 24 of the sorting chamber 9 through the auxiliary front side plate 57, the bending in the longitudinal direction is reduced. In addition, the deformation of the outlet plate 11 and the middle plate 13 is suppressed even when an excessive load is applied to the threshing chamber 7 at the time of threshing, and the clearance between the teeth 12a of the handling cylinder 12 and the threshing receiving net 14 is suppressed. Is constant,
Threshing performance can be improved, such as reduction of unhandled and twig spikes.

[Brief description of the drawings]

FIG. 1 is a side view showing the arrangement of feed chain-related components of a threshing apparatus, the arrangement of straw waste guide plates, and the state in which a transmission belt is stretched.

FIG. 2 is a perspective view showing a main machine frame configuration of the threshing apparatus and an assembled state of a straw waste guide plate.

FIG. 3 is a front cross-sectional view showing a state in which straw waste falls onto a straw waste guide plate of the threshing apparatus and an arrangement relationship of a dustproof seal of a holding rod.

FIG. 4 is a perspective view showing a feed chain relationship of the threshing apparatus and a state in which a handling drum cover is opened.

FIG. 5 is a side sectional view showing the internal structure of the threshing apparatus.

FIG. 6 is a block diagram showing a transmission path of the threshing device.

FIG. 7 is a perspective view showing a structure of a holding rod of the threshing device and a dustproof seal thereof.

FIG. 8 is a perspective view showing a main machine frame configuration of the threshing apparatus and an assembled state of an auxiliary front side plate.

[Explanation of symbols]

 1. Feed chain 2. Chain rail ３． Chain cover 4. Power transmission belt 5. Belt cover 6. Straw waste guide plate

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Osamu Tomita 1-Eight Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Inside

Claims (1)

[Claims] 1. A feed chain 1 for transporting a grain culm during threshing, a chain rail 2 for slidingly guiding the chain 1,
A chain cover 3 for covering these outer surfaces, and a belt cover 5 below the chain cover 3 for covering the outer surfaces of the power transmission belts 4 for driving the respective working portions. In a threshing machine that can be opened and closed, a straw waste guide plate 6 for guiding the waste falling from the feed chain 1 to the outside of the machine while avoiding the transmission belt 4 is provided integrally with the chain rail 2. A straw waste discharging device.