JPH11332366A - Threshing and grading apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To raise grading performances and prevent grain loss even when frequently causing waste straws under the influence of meteorological conditions, variety conditions, etc., or wet threshing at a high humidity. SOLUTION: This threshing and grading apparatus is obtained by arranging a threshing chamber 9 equipped with a threshing cylinder 5 having the shaft center in the left and right directions and a treating chamber 11 internally installing a treating cylinder 10 having the shaft center in the same directions as those of the threshing cylinder 5 in the front and rear, making the treatment terminal end of the threshing chamber 9 communicate with the treatment starting end of the treating chamber 11, providing a shaking and grading shelf 1 for leaking down and grading grains while receiving threshed materials, shaking and transferring the threshed materials in a position under the threshing chamber 9, the treating chamber 11 and a Silocco type suction dust discharging machine 12 arranged at the rear of the machine body, installing a main fan mill 3 for jetting a wind through a main grading wind passage 2 directed to the downstream side in the upper part of the shaking and grading shelf 1 and an auxiliary fan mill 4 for jetting a grading wind toward the downstream side so as to pass along the lower side of the shaking and grading shelf 1 over the upper part of the main fan mill 3 and form an acute angle to the main grading wind passage 2 under the shaking and grading shelf 1 and locating the joining part of the jetting winds fed from the respective fan mills 3 and 4 on the terminal end side of the threshing chamber 5 and in the intermediate part of the shaking and grading shelf 1 when viewed from the lateral face.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing sorting apparatus, and can be effectively used as a combine threshing apparatus.

[0002]

2. Description of the Related Art In a mode in which an oscillating sorting shelf is provided as a threshing / sorting device, a garbage which blows upward from below the oscillating sorting shelf is provided, and the grains to be oscillated and sorted are selected by wind. is there.

[0003]

However, cereal culm in the field may generate a lot of straw waste or perform wet handling with high humidity under the influence of weather conditions, cultivar conditions and the like. In the Kara-mino, the sorting operation cannot be performed sufficiently, which results in poor sorting and grain loss.

[0004]

The present invention employs the following technical means to solve such a problem. That is, in a side view of the threshing apparatus, a threshing chamber 9 in which a handling cylinder 5 having an axis in the left-right direction is rotatably provided, and a processing chamber 11 in which a processing cylinder 10 having an axis in the same direction as the handling cylinder 5 is provided. Are arranged back and forth to communicate a processing end portion of the threshing chamber 9 and a processing start end portion of the processing chamber 11, and the threshing chamber 9 and the processing chamber 1
1 and a sirocco-type suction / dust extractor 12 which is disposed at the rear of the machine and has a longitudinal axis. 1, below the oscillating sorting shelf 1, a main Karin 3 blasting a main sorting air passage 2 toward the lower side of the oscillating sorting shelf 1, and along a lower side of the oscillating sorting shelf 1. The main sorting wind path 2 passes through the upper part of the main Karino 3 and the auxiliary Karin 4 which gushes toward the lower side at an acute angle. The threshing / sorting device is located at the end of the viewing and handling room 5 and in the middle of the swinging / sorting shelf 1.

[0005]

The threshing material to be threshed in the threshing room is received on the upper surface of the rocking sorting shelf 1 and sorted while being rocked and transported into grains and straw chips. Leaked from
The wind is selected by receiving the sorting wind blasted from Vice Karamin 4 and the sorting wind blasted from Main Karamin 3. The sorting wind from the sub-karamino 4 is blown toward the lower side in the swinging transfer direction while passing along the upper part of the main sorting box 1 and almost along the lower surface of the swing sorting shelf 1, and these gushes Meet at the intermediate portion of the swing sorting shelf 1. The sifting winds, which are mainly selected from the grains that are leaking or leaking from the oscillating sorting shelf 1, are sifted through the main sifting wind path 2 from the main karamino 3, and the sifting winds are selected by these sub-sifting winds. In addition to the crushed grains and the like, the end of the swing sorting shelf 1 is blown up and down, and the straw dust on the upper surface of the swing sorting shelf 1 is floated to assist swing sorting and transfer.

[0006]

[Effect] The blasts supplied from the main Karin 3 and the auxiliary Karin 4 merge at an acute angle, and the merging part is the middle part of the oscillating sorting shelf 1. Transfer and sorting work of leaked straw debris and grains is improved.

[0007]

Embodiments of the present invention will be described below. First, the structure will be described. The threshing device used in the combine is configured such that a handle cylinder 5 is rotatably mounted on a shaft 6 at an upper portion, and a feed chain is pinched and conveyed by a feed chain 7 and a pinching rod 8. A threshing chamber 9 for threshing while processing, a processing chamber 11 in which a processing drum 10 is provided, a dust chamber 13 having a suction duster 12, and a culm discharging device 14 for transferring threshed culms are provided. Reference numeral 15 denotes a threshing net extending below the threshing room 9.

[0008] Further, in the lower part of the threshing chamber 9 and the dust chamber 13 and the like, a swing sorting shelf 1, main and sub-karaminos 3,4, a sorting wind path 2,
And a first receiving gutter 16, a second receiving gutter 17, and the like.
The swing sorting shelf 1 has a rack bar at an appropriate interval from the lower end of the threshing net 15, below the outlet 18 at the end of the threshing chamber 9, and below the suction / duster 12. And a straw rack 20 at the terminal end, a grove 21 along the bottom of the chief sheave 19, and inclined plates 22, 23, etc., and a straw outlet 2 of the eccentric shaft 24 at the rear end.
While transferring to the fifth side, the grains are sorted while leaking from gaps such as the chaff sheave 19 and the straw rack 20.

On the upper side of the swing sorting shelf 1, a threshing net 1
Transfer shelf 2 for receiving threshing material leaked from the supply port 26 side of No. 5
The transfer shelf 27 is provided with an auger 29 on which a cutting blade 28 is disposed, and the thresh leaked onto the transfer shelf 27 is transferred to the upper surface of the starting end of the same sorting shelf 1. It has a configuration.
The main Karino 3 is located on the lower side of the upper side of the swing sorting shelf 1, blows out the grain 29 from the first receiving gutter 16 to the upper side on the lower side, and blows the terminal end of the chaff sheave 19 upwards on the lower side. The threshing material which leaks through the chaff sheave 19 and the grain sieve 21 by communicating with the sorting wind path 2 to be passed is selected by wind.
The sorting is performed by floating the straw scraps and the like on the chaff sheave 19 and the straw rack 20. by this,
The first grain is allowed to flow down to the first receiving gutter 16, the second product is allowed to flow to the second receiving gutter 17, and the first product is taken out as it is with a fryer, but the second product is a fryer Threshing room 9 by 26
To be processed.

The shaft 30 of the main car 3 and the shaft 31 of the sub car 4 are linked by a drive shaft 32 via belts 33, 34, 35 and the like. The transmission is transmitted by the tension of the tension pulley 37 of the belt 34 wound around the belt 36, and the continuously variable speed pulley 36 expands and contracts by the rotation of the speed change cam 38, thereby continuously changing the speed. The sub-karano 4 is a continuously variable pulley 3 on shafts 30-31.
The tension pulley 40 of the belt 35 wound around 9
The continuously variable speed pulley 3
The stepless speed change is performed by expanding and contracting the gear 9 by rotating the speed change cam 41. Each of the augers 29 is connected to the drive shaft 32 by the belt 4.
2, and via a lateral shaft 43 or the like.

When the drive shaft 32 is rotated by tensioning the tension pulleys 37 and 40, the belts 33 and 3 are rotated.
4, the main Karino 3 shaft 30 is rotated.
From 0, the auxiliary shaft 4 is rotated via the belt 35. By the forward / reverse driving of the transmission motor M of each of the continuously variable transmission pulleys 36 and 39, the transmission cam 38 is rotated around the shaft 30 via the crankshaft 42 and the link 43, and The split pulley diameter of the step shifting pulley 36 can be changed.
Further, the speed change cam 41 is rotated around the shaft 31 from the crankshaft 42 via the link 44, and the continuously variable speed pulley 39 is rotated.
Can be changed.

The relationship between the rotational angle of the shift motor M and the gear ratio of the continuously variable pulleys 36, 39 by the respective shift cams 38, 41 is set to a specific relationship. Threshing sensor A
The amount of threshing material leaking from the threshing net 15 is provided as a flow sensor A1 by an infrared sensor, but may be provided as a flow sensor A2 for detecting the flow supplied to the swing sorting shelf 1 from a transfer shelf 27 by an auger 29. Alternatively, it may be provided as a load sensor A3 for detecting a driving load acting on the auger 29. Further, such threshing sensors A at a plurality of locations
May be used as an input value to a controller CPU having a microcomputer.

FIGS. 4 and 5 show the relationship between the grain flow rate Q and the air volume V. FIG.
For example, in threshing rice, as shown in Fig. 4,
Is set in advance, and the flow rate V is controlled by detecting the flow rate Q of the threshing sensor A to set the air flow rate change line B1 and the air flow rate change line C1 of the sub Karin 4. Further, in the threshing of wheat, the air volume change lines B2 and C2 are set as shown in FIG. In the case of wheat, the amount of straw waste on the swing sorting shelf 1 is larger than that of rice, but the amount of grain is not so large. Therefore, while increasing the rotation of the auxiliary drum 4 so as not to allow straw chips from the chaff sheave 19 and the grain 21 to fall, the main drum 3 is rotated.
It is possible to reduce the scattering of grains from the upper surface of the swing sorting shelf 1 without increasing the number of rotations so much.

Incidentally, for rice and wheat, the position of the threshing sensor A may be selected and switched so as to detect at an appropriate position.

[Brief description of the drawings]

FIG. 1 is a side sectional view.

FIG. 2 is a front sectional view.

FIG. 3 is a partial plan view.

FIG. 4 is a graph showing a grain flow rate Q-air volume V-line when threshing rice.

FIG. 5 is a graph of a grain flow rate Q-air flow V line at the time of wheat threshing.

FIG. 6 is a control block diagram.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Oscillating sorting shelf 2 Main sorting airway 3 Main Karino 4 Secondary Karino A Threshing sensor

Claims (1)

[Claims] In a side view of a threshing apparatus, a threshing chamber 9 rotatably provided with a handling cylinder 5 having an axis in the left and right direction, and a processing cylinder 10 having an axis in the same direction as the handling cylinder 5 are installed. The processing chamber 11 is disposed before and after, and a processing end portion of the threshing chamber 9 and a processing start end of the processing chamber 11 communicate with each other.
1 and a sirocco-type suction / dust extractor 12 which is disposed at the rear of the machine and has a longitudinal axis. 1, below the oscillating sorting shelf 1, a main Karin 3 blasting a main sorting air passage 2 toward the lower side of the oscillating sorting shelf 1, and along a lower side of the oscillating sorting shelf 1. The main sorting wind path 2 passes through the upper part of the main Karino 3 and the auxiliary Karin 4 which gushes toward the lower side at an acute angle. A threshing / sorting device which is located at the middle of the swinging / sorting shelf 1 at the end of the visual and handling room 5.