JPH0484825A - Threshing and selection-controlling apparatus of combine - Google Patents

Abstract

PURPOSE:To reduce the third loss in the turning motion of a combine by attaching a waste dust controlling plate to a dust discharging port opened at the delivery end of a winnower and interlocking the motion of the controlling plate with a mechanism to detect the turning motion of the machine body. CONSTITUTION:In the case of transferring a combine to the next step after finishing reaping work, the machine is turned after lifting a reaping part to a non-working position by operating a power steering lever 20 in machine direction. The turning operation is detected by a detection mechanism 21, a waste dust controlling plate 19 is turned to close a dust discharging port 13 according to the detection signal and, at the same time, a supplied dust controlling plate 24 is operated to a side to apply resistance to the supply of the dust. The discharge of straw dust from the threshing chamber to the winnower part 7 is decreased and the dust discharging port 13 is closed by this operation to prevent the scattering loss of grains from the machine.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a threshing sorting control device for a combine harvester, which aims to reduce No. 3 loss when the machine rotates.

〔Tachirai technique slash〕

Conventionally, a swingable control valve is provided at the dust exhaust port formed at the # end of the wind selection section, and this control valve is automatically operated depending on the amount of No. 3 loss. A technique that allows the area to be changed is known, for example, from Japanese Utility Model Application Publication No. 56-96948.

[Problem to be solved by the invention]

In such conventional equipment, when the aircraft rotates, the supply of shell culms into the handling room is reduced, so the sorting wind acts strongly.
There was a problem in which a large amount of grain was scattered outside the aircraft from the dust exhaust port.

The present invention aims to solve the problem by operating the dust ejection control plate in the direction to automatically close the dust exhaust port when the aircraft is rotating, and operating the dust transfer control plate in the handling chamber toward the feed resistance side. That is. Therefore, technical measures such as blowing were taken.

[Means to solve the problem]

That is, the technical means according to the present invention is that a dust exhaust port 13 formed at the end of the wind selection section 7 is provided with a dust exhaust control plate 18 that controls opening and closing of the dust exhaust port.

A dust feed control board is installed in the handling room to control the feed of the processed material.
A motion detection mechanism 19 is provided to detect the machine rotation motion when one stroke of reaping work is completed and the transition is made to the next stage of reaping work, and based on the detection result of this motion detection mechanism, the dust exhaust control plate 18 is activated. The present invention is characterized in that the dust feeding control plate is configured to operate in the closing direction and on the feeding resistance side.

[Effect]

When one stroke of reaping work is finished and you want to move on to the next stroke, first raise the reaping section to the non-working position by operating the power steering lever in the front-back direction, and then rotate it, or move the power steering lever in the left-right direction. The operation causes the machine to rotate more than a predetermined number of times, and the motion detection mechanism detects a raising operation of the reaping part more than a predetermined amount or a rotation operation of the machine more than a predetermined amount during such a rotation, and based on this detection result, The dust control plate operates in the direction toward the dust exhaust port, and at the same time, the dust control plate operates in the direction of the feed resistance, reducing the amount of straw waste discharged from the handling chamber to the wind selection section.
In addition, by closing the dust exhaust port, scattering loss of grains to the outside of the machine is prevented.

〔Effect of the invention〕

According to the present invention, even when there are very few objects to be sorted when the machine is rotating, the grains are not blown away from the dust exhaust port by the sorting wind.

It has now become possible to prevent scattering losses.

〔Example〕

Examples of the present invention will now be described.

A shows the reaping part of the combine, B shows the threshing machine, and C shows the running rollers. The reaping part B is configured to move up and down around the fulcrum P so that i=J. Threshing machine B has a handling barrel 1 that threshes grain by implanting extracted teeth.
The front and rear walls of the handling chamber 2, which supports the shaft of the handling drum 1, have a supply port 3 for supplying husks to the handling chamber 2, and A discharge port for discharging the shell culm is provided, and a foot chain 4 for holding and transferring the base of the shell culm is provided on one side of the handling chamber 2 along the axial direction of the handling cylinder. On the top side of the receiving net 5 stretched along the outer periphery of the handling drum 1 in the handling chamber 2, there is installed a sorting device 6 for receiving and sorting the threshed grains falling from the receiving net 5. There is a selection section 7. The sorting device 6 includes a swinging sorting device 8 and a pressure fan 9 that sends sorting air to the swinging sorting device 8. Said 4
The 1m11 sorting device 8 has a grain pan 10 and a grain sieve 11 installed in a series of front and rear parts on a frame body that can be driven to swing freely, and a chaff sieve 12 is provided extending from above to behind the grain sieve 11. The threshed grains leaking from the receiving net 5 are received by the grain pan 10, and are oscillatedly transferred to the rear grain sieve 11 while being sorted by the difference in specific gravity, and then oscillatedly transferred to the rear while being screened by the grain sieve 11. , releases sedation from the rear end. On the other hand, handling room 2
The waste waste discharged from the waste sieve 2a is received on the chaff sieve 12, and while being sieved and sorted, it is oscillated and transferred to the rear, and only the straw waste to be discharged is opened from the end toward the rear. The floating dust is discharged to the outside of the machine along with the sorting air through a dust exhaust port 13, and the floating dust is suctioned and discharged by a suction dust exhaust fan 14.

At the bottom of the wind selection section 7, there are a No. 1 receiving gutter 15 and a No. 2 receiving gutter @16.
has been established. Reference numeral 17 denotes a second remote pressure shelf installed obliquely between the dust exhaust port 13 and the second receiving gutter 16. The dust exhaust port 13 is provided with a dust exhaust control plate 19 that is swingable around a horizontal shaft 18 for opening and closing this portion.

Reference numeral 20 denotes a power steering lever, which is configured so that the aircraft can be controlled to rotate left and right by swinging it in the left and right directions.
It is configured such that the reaping section A is controlled to move up and down when it is oscillated in the front-back direction. In the embodiment, the operation detection mechanism 21 detects the reaping raising operation by the power steering lever 20 when the machine is rotating, that is, the switch SWt! detects that the reaping section has been raised to a predetermined non-working position. - the control unit 22. The dust exhaust control plate 19 is configured to swing automatically in a direction to close the dust exhaust port 13 via the motor M, the interlocking mechanism 23, and the like. Needless to say, when the reaping section A is lowered to a predetermined reaping work position, the dust exhaust control plate 19 automatically swings in the direction to open the dust exhaust port 13.

On the other hand, in the handling chamber 2, there is a dust feeding control board 24 which is inclined at a predetermined angle with respect to the axial direction of the handling cylinder and which can change the inclination angle between a direction that promotes feeding and a direction that provides resistance to feeding. has been established. The dust feeding control plate 24 can be swung around the pin shaft 25 and the inclination angle can be adjusted via the operating arm 26, changing from the state position (a) to the state position (b) shown in the figure. When adjusted, feeding resistance of the processed material is applied and the residence time in the handling chamber becomes longer.On the other hand, when the state position of (B) is adjusted to the state position of (A), the feeding of the processed material is promoted. The residence time in the handling room is now shorter.In fact, when the machine is rotating, there is less material to be processed in the handling room.
If the debt is reduced and the dust feeding control board 24 is changed to the feeding resistance side (state (b)), the discharge of the processed material from the handling chamber to the wind separation section will be reduced, reducing No. 3 scattering loss. will also decrease. Therefore, such a dust feeding control board 24,
Simultaneously with the control of the dust evacuation control board 19, the controller 22. control motor M,
It is configured to automatically control to the feeding resistance side via the interlocking mechanism 27 and the like.

In FIG. 4 of another embodiment, E is an engine, 28 is a traveling gear box, 29 is an H3T (hydraulic rocking device), and 30 is an HST output shaft, and the power from this output shaft 30 is transmitted through a reaping tension clutch 31. It is configured such that the information is input to the input shaft 32 to the reaping iJA.

33 is a foot chain input shaft, 34 is a foot chain moving gear box, 35 is a foot chain drive sprocket, 36 is a threshing counter shaft, which is connected to the handling cylinder 1 and pressure fan 9.
etc. are interlocked so that they are driven via transmission belts 37 and 38.

The power from the engine E is transmitted to the HS via the transmission belt 39.
T29 and threshing tension clutch 4
0 to the threshing counter shaft 36.

Also, before! [! Power from the HST output shaft 30 is input to the foot chain input shaft 33 via the foot chain tension clutch 41a,
According to this transmission system, when H8'r is set to neutral, the drive of the foot chain 4 is stopped, but at this time, the foot chain is activated from the threshing counter shaft 36 side via the foot chain tension clutch 41b. If the input shaft 33 is configured to be driven, it is possible to perform pile removal work while the machine is stopped.

42 is an H8T lever (traveling speed change lever), and 43 is a reaping latch lever, which interlocks the reaping tension clutch 31 and the foot chain tension clutch 41a. Reference numeral 44 denotes a threshing clutch lever, which is configured to be able to switch between a state in which the threshing tension clutch 40 can be turned on and off independently, and a state in which both the threshing tension clutch 40 and the foot chain tension clutch 41b can be turned on and off in conjunction. ing.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a side sectional view of a threshing machine, Fig. 2 is a schematic side view showing the operating state of the main parts, and Fig. 3 is a side view of the main parts of the combine harvester. , FIG. 4 shows a power transmission path diagram of the combine harvester. In the figure, symbol A is the reaping section, B is the threshing machine, C is the running roller, 1 is the handling cylinder, 2 is the handling room, 5 is the receiving net, 7 is the wind selection section, 8 is the swing sorting device 4.9 is a pressure fan, 13 is a dust exhaust port, 14 is a suction dust exhaust fan, 15 is a No. 1 receiving gutter, 16 is a No. 2 receiving gutter, 1
7 is the second reduction shelf, 18 is the horizontal axis, 19 is the dust control board, 20
The power steering lever 21 is a motion detection mechanism, 22 is a control unit, and M
2 is a control motor, 23 is an interlocking mechanism, 24 is a dust feed control plate, 2
5 is a pin shaft, 26 is an operating arm, and 27 is an interlocking mechanism.

Claims (1)

[Claims] (1) A dust exhaust control plate 18 is installed at the dust exhaust port 13 formed at the end of the wind sorting section 7 to control the opening and closing of the dust exhaust port, and a dust exhaust control plate 18 is installed in the handling chamber to control the feeding of the material to be processed. A control board is provided, and a motion detection mechanism 19 is provided to detect the rotational motion of the machine when one stroke of reaping work is completed and the next stage of reaping work is started.
Threshing sorting in a combine harvester characterized in that the dust discharge control plate 18 is configured to operate in the closing direction and the dust feeding control plate operates in the feeding resistance side based on the detection result of the operation detection mechanism. Control device.