JPH05328833A - Sorting control unit for thresher - Google Patents

Abstract

PURPOSE:To provide the subject control unit designed to properly and automatically set the regulating limitation for the treating capacity of a sorting device toward its increasing side. CONSTITUTION:This system is provided with (A) a grain stem feed detecting means S5 for the grain stem feed to a handling chamber A and (B) regulating means M1, M2 for regulating the treating capacity of a sorting device B to make sorting treatment under conveying sorting objects. A control means 100 which actuates the regulating means M1, M2 so as to increase the treating capacity of the sorting device B as grain stem feed increases based on the information from the means S5, changes the regulating limitation for the treating capacity toward its increasing side as stack thickness increases, based on the information from a stack thickness detecting means S4 for sorting objects on a rocking sorting plate 19 equipped in the sorting device B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain culm supply amount detecting means for detecting the amount of grain culm supplied to a handling room, and an adjusting means for adjusting the processing capacity of a sorting device for sorting while transporting objects to be sorted. Is provided, based on the information of the grain culm supply amount detection means, threshing provided with control means for operating the adjusting means such that the processing capacity of the sorting device increases as the grain culm supply amount increases. The present invention relates to a sorting control device.

[0002]

2. Description of the Related Art In the above-mentioned selection control device for a threshing device, when this is applied to a combine, for example,
In the same field, since the amount of harvested grain culm, that is, the amount of grain culm supplied to the handling room is proportional to the traveling speed, the information on the traveling speed of the combine is often used as the information of the grain culm supply amount.

The processing capacity to be adjusted with respect to the same value of the grain culm supply, that is, the target processing capacity depends on the crop conditions such as the type of rice (rice, wheat, etc.) and the growing state, and therefore, depending on those crop conditions. It is necessary to change and set the target processing capacity for the same grain culm supply amount, but conventionally, for example, a chaff adjusting volume for changing and setting in 5 steps is provided, and the chaff adjusting volume is set by the operator as described above. The crop conditions were judged and set manually.

[0004]

However, in the conventional means for manually setting the adjustment limit as described above, not only is the setting operation troublesome, but it is also necessary for the unskilled person to determine an appropriate value. Was difficult.

The present invention has been made in view of the above circumstances, and an object thereof is to eliminate the drawbacks of the above-mentioned prior art, and to make the processing capacity of the sorting apparatus appropriate automatically while also considering the crop conditions. It is to be able to adjust to the value.

[0006]

A feature of a sorting control device of a threshing device of the present invention is that a layer thickness for detecting a layer thickness of a sorting object existing on an oscillating sorting plate provided in the sorting device. A detection means is provided, and the control means is configured to change the target processing capacity for the same grain culm supply amount based on the information of the layer thickness detection means.

[0007]

According to the characterizing feature of the present invention, the target processing capacity for the same grain culm supply amount is changed based on the increase or decrease of the layer thickness of the object to be sorted on the rocking sorting plate provided in the sorting device. Therefore, it is possible to appropriately perform the sorting process. That is, since the treatment capacity is adjusted depending on the amount of grain culm supplied, the layer thickness on the rocking sorting plate is the same under the same crop conditions. Therefore, the change in the layer thickness can be detected as a change in the crop condition, and therefore the target treatment capacity for the same value of the grain culm supply amount can be changed to a state suitable for the crop condition based on the layer thickness.

[0008]

Therefore, according to the characteristic construction of the present invention, it becomes possible to satisfactorily adjust the processing capacity of the sorting apparatus in a state where it is also adapted to the crop condition.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a threshing device mounted on a combine will be described below with reference to the drawings.

The self-removing combine shown in FIG. 2 comprises a pair of left and right crawler traveling devices 1, a threshing device 2, a control section 3, a cutting section 4, and the like. The cutting unit 4 includes a weeding tool 5, a planting grain culm raising device 6, and a cutting blade 7, and the cut grain culm is fed by a conveying device 9 to a feed chain 16 of the threshing device 2.
Be transported to. Further, a stock origin sensor S1 is provided at the tip of the carrier device 9.

As shown in FIG. 3, the power from the engine E is transmitted to the threshing device 2 via the threshing clutch 10 and the crawler traveling via the traveling clutch 11 and the hydraulic continuously variable transmission device 12. Mission unit 1 of device 1
3 is transmitted to the mowing section 4 via the mowing clutch 14. In order to detect whether or not the threshing device 2 is in operation, the threshing clutch 10 is provided with a threshing switch SW1 for detecting the on / off state of the threshing clutch 10, and the traveling speed is determined based on the output speed of the transmission 12. A speed sensor S5 for detecting is installed. Since the amount of harvested grain culm is proportional to the traveling speed, the speed sensor S5 functions as a grain culm supply amount detecting means for detecting the amount of grain culm supplied to the handling room A of the threshing device 2 described later.

As shown in FIGS. 4 and 5, the threshing device 2 includes a handling room A for accommodating the handling barrel 8, a feed chain 16 for supplying the grain culms supplied from the reaper 4 to the handling room A, and dust. Horizontal fan 17 for use, a sorting device B including a swinging sorting plate 19 for sorting a processed product after threshing, that is, a sorting target while transporting a sorting wind, a target after sorting, and the like. No. 20 and No. 2 for collecting things
1 is provided. In the lower part of the handling room A, a catching net 22 for leaking threshing processed material is provided along the lower outer peripheral portion of the handling cylinder 8 so that the single grains of the processed products after threshing are received. Net 22
Leaks from the rocking sorting plate 19. On the other hand, the processed material that cannot be leaked from the receiving net 22 falls from the rear end portion of the receiving net 22 to the swing selection plate 19.

The swing selection plates 19 are arranged so that the pans 27 are arranged in order from the front to the rear, the chaff sheaves 24 serving as leaking parts, and the straw rack 2.
Each of the grains 3 leaked from the chaff sheave 24 and further leaked from the Glen sieve 25 is collected from the first mouth 20 and stored in a tank or the like. After the mixture of the grains and the straw waste that has fallen from the rear end of the chaff sheave 24 or the rear end of the Glen sieve 25 is collected from the second opening 21, the rear end portion of the handling chamber A is recovered by a screw type second material reducing device 26. The discharge port 2 is conveyed upward to the lateral side position, and is provided at the tip of the conveyance port 2.
8 is blown off to the front side by a rotary plate 40 that is installed inside 8 and rotates around the axis of the vertical axis, and falls to a position on the front side of the swing selection plate 19.

Below the receiving net 22, as shown in FIGS. 4 and 5, a layer thickness sensor as a layer thickness detecting means for detecting the layer thickness of the objects to be sorted existing on the swing sorting plate 19. S4
Are attached to a bow 39 fixed to the receiving net 22. As shown in FIG. 6, the layer thickness sensor S4 has a resistance value depending on a sensor bar T that is swingably suspended around a horizontal axis and a rotation angle of the sensor bar T to the rear (object transfer direction). Of the potentiometer PM which changes. The sensor bar T is formed in a bifurcated shape in which the downstream portion T1 in the object transfer direction is longer than the upstream portion T2, whereby the downstream portion T1 contacts the object when the layer thickness of the object is thin,
The upstream portion T2 comes into contact with the object when the layer thickness is increased. Then, as the layer thickness of the object becomes thicker, the rotation angle of the sensor bar T becomes larger and the resistance value of the potentiometer PM increases, and a signal voltage corresponding to the resistance value is input to the control device H described later. .. In the figure, I indicates the rotation angle when the layer thickness is the proper layer thickness, and I ′ indicates the rotation angle at the lower limit layer thickness at which the layer thickness is judged to be too small when it is less than this. Indicates the angle.

As shown in FIG. 7, the chaff sheave 24 has a plurality of strip plate members 24a juxtaposed in the object transfer direction (right direction in the figure) rotatably attached to the left and right side plates. Then, the angle of the strip plate member 24a is simultaneously changed by pushing and pulling the operation rod 30 pivotally attached to the lower end portion of each strip plate member 24a in the front-rear direction. As a result, the distance d (hereinafter referred to as a chaff sheave opening) between adjacent members is changed while maintaining the parallelism of the strip plate members 24a.

A sheave motor M1 for changing and adjusting the chaff sheave opening of the chaff sheave 24 is provided, and the output portion of the sheave motor M1 is a gear type linkage mechanism 31,
It is connected to the operation rod 30 via a swing arm 32 and a release wire 33. Then, by changing the polarity of the applied voltage and rotating the sheave motor M1 in the forward and reverse directions, the chaff sheave opening can be opened or closed. Therefore, the sheave motor M1 functions as adjusting means for adjusting the processing capacity of the sorting apparatus B. In the figure, S2 is a potentiometer-type chaff sheave opening sensor for detecting the chaff sheave opening from the rotation angle of the swing arm 32, and 29 is a spring for biasing the chaf sheave 24 to return to the closing side.

The toumi 18 is used to blow off the straw waste on the swing selection plate 19, and the wind force thereof is, as shown in FIG. 8, the opening of the fan case cover 18a (hereinafter referred to as "opening").
This is done by changing the Toumi exhaust opening. That is, as the opening degree of the exhaust air of Toumi increases, the amount of air escaping from the opening increases, and the wind force that blows off the processed material on the swing selection plate 19 (hereinafter, referred to as the Tumi wind force) decreases.

The adjustment of the opening degree of the exhaust air of the TOMI is performed by the TOMI motor M.
When the polarity of the applied voltage is changed to rotate in the forward and reverse directions, the fan case cover 18a is opened and closed via the linkage mechanism 34, the swing arm 35, and the rods 36 and 37. In the figure, S3 is a potentiometer-type exhaust air opening sensor for detecting the exhaust air opening degree of toumi from the rotation angle of the swing arm 35.

As shown in FIG. 1, a control device H utilizing a microcomputer is provided, and the control device H includes the stock element sensor S1, the chaff sheave opening sensor S2, the toumi exhaust air opening sensor S3, and The signals from the layer thickness sensor S4, the speed sensor S5, and the threshing switch SW1 are input, and the control device H outputs drive signals for the sheave motor M1 and the toumi motor M2.

Using the control device H, the sorting device B is based on the detection information of the speed sensor S5 as the traveling speed is faster (that is, the amount of grain culms supplied to the handling room A is larger). The control means 100 for operating the sheave motor M1 is configured so that the processing capacity of the above is increased, and the control means 100 performs the selection for the same value of the grain culm supply amount based on the information of the layer thickness sensor S4. It is configured to change the target throughput of device B.

A detailed description will be given below with reference to FIG.
The chaff sheave opening is at the maximum vehicle speed (however, 1.0m / sec
The chaff sheave opening CHO (below) is adjusted to the closing side as the traveling speed decreases, but the adjustment is 0.
It is set to change stepwise at each position of 8, 0.5, 0.3 and m / sec. Further, while maintaining the relationship between the chaff sheave opening degree and the traveling speed, the chaff sheave opening degree is set so that it can be changed in five steps from level 1 which is the most closed side to level 5 which is the most opened side. ing. A minimum opening CHmin is provided further below the level 1 (however, the minimum opening CHmin is not a completely closed state). Therefore, since the adjustment limit to the increasing side of the processing capacity of the sorting apparatus B corresponds to the chaff sheave opening CHO at the above maximum vehicle speed, in order to change the target processing capacity for the same grain culm supply amount, the above maximum The adjustment level of the chaff sheave opening CHO at the vehicle speed is raised or lowered between the level 1 and the level 5.

Next, the operation of the controller H will be described with reference to the flow chart shown in FIG. First, when at least one of the threshing switch SW1 and the stock origin sensor S1 is off, the threshing device 2 is not operated, or even if the threshing device 2 is operated, the grain culm is not supplied to the threshing device 2. Degree to the minimum opening CHmin. When both the threshing switch SW1 and the stock sensor S1 are turned on, that is, when the threshing device 2 is operating and the grain culm is being supplied to it, the layer thickness sensor S4 detects the layer thickness to detect the detected layer thickness. And the suitable layer thickness I are compared.
When the detection layer thickness is larger than the appropriate layer thickness I, the current adjustment level of the chaff sheave opening is increased by 1 level (for example, if the current level is 3, it is set to level 4), while the detection layer thickness is equal to the appropriate value. When it is smaller than the layer thickness I, the detection layer thickness is further compared with the lower limit layer thickness I ′, and when the detection layer thickness is smaller than the lower limit layer thickness I ′, the current adjustment level of the chaff sheave opening is lowered by one level (for example, , If the current level is 3, set it to level 2.) At the same time, the chaff sheave opening CHO at the maximum vehicle speed is updated according to the change in the adjustment level of the chaf sheave opening. Then, under the updated new adjustment level, the chaff sheave opening is adjusted according to the traveling speed detected by the speed sensor S5. After this, after confirming the elapse of the timer time set to about 3 seconds, the next adjustment operation is started. The above timer time corresponds to the time until the effect of the adjustment operation of the chaff sheave opening is determined as the change in the layer thickness, that is, the time required for the second recovery product 26 to reduce the second recovery product. To do.

[Other Embodiments] In the above embodiment, the speed sensor S5 is used as the grain culm supply amount detecting means for detecting the grain culm supply amount to the handling room A, but other than this, for example, the threshing device 2
It may be a layer thickness sensor that detects the layer thickness of the grain culm conveyed by the feed chain 16 of FIG.

Further, in the above embodiment, the adjusting means for adjusting the processing capacity of the sorting apparatus B is constituted by the sheave motor M1, but the toumi motor M2 together with the sheave motor M1 is also constituted by adjusting means for adjusting the processing capacity of the sorting apparatus B, The sheave motor M1 and the toumi motor M2 may be operated to change the chaff sheave opening and simultaneously change the toumi exhaust air opening of the toumi 18 to adjust the processing capacity of the sorting apparatus B.

Further, in the above embodiment, when the chaff sheave opening is adjusted so that the throughput of the sorting apparatus B increases as the grain culm supply amount increases (the traveling speed increases), the chaff sheave opening becomes the traveling speed. On the other hand, although it is configured to change stepwise (4 steps), it may be changed continuously and steplessly.

Further, in the above embodiment, the layer thickness detecting means for detecting the layer thickness of the sorting object existing on the swing sorting plate 19 is provided as one layer thickness at a predetermined position in the object transport direction. It is composed of sensor S4, but two or more layer thickness sensors are installed,
For example, it is possible to improve the detection accuracy by operating the adjusting means M1 and M2 according to the average layer thickness. The layer thickness detecting means is not limited to the contact type layer thickness sensor.
For example, a non-contact type layer thickness sensor such as an ultrasonic sensor or a photoelectric sensor can be used.

Further, in the above embodiment, when the adjustment limit to the increasing side of the processing capacity of the sorting apparatus B is changed to the increasing side as the layer thickness is thicker, the adjustment limit is changed from level 1 to level 5. Although the configuration is such that the number of stages is changed, the number of stages other than five can be set.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a block diagram of a control configuration.

FIG. 2 is a schematic side view of the combine.

[Fig. 3] Combined power system diagram

FIG. 4 is a schematic vertical sectional side view of a threshing device.

FIG. 5 is a vertical sectional front view of the upper part of the threshing device.

FIG. 6 is a side view of the layer thickness detecting means.

FIG. 7 is a side view of the chaff sheave opening adjustment mechanism.

FIG. 8 is a side view of the Toumi exhaust air flow adjustment mechanism.

FIG. 9 is an explanatory diagram showing a relationship between a chaff sheave opening and a traveling speed.

FIG. 10 is a flowchart of control operation.

[Explanation of symbols]

 A handling room B sorting device 19 rocking sorting plates M1, M2 adjusting means S4 layer thickness detecting means S5 grain culm supply amount detecting means 100 control means

Claims (1)

[Claims] 1. The processing capacity of a grain culm supply amount detecting means (S5) for detecting the amount of grain culm supplied to the handling room (A) and a processing capacity of a sorting device (B) for sorting while transferring the sorting object. Adjusting means (M1, M2) are provided, and based on the information of the grain culm supply amount detecting means (S5), the larger the grain culm supply amount is, the larger the processing capacity of the sorting device (B) is. A threshing control device for a thresher having a control means (100) for actuating the adjusting means (M1, M2) on a rocking sorting plate (19) provided in the sorting device (B). Is provided with a layer thickness detecting means (S4) for detecting the layer thickness of the sorting object, and the control means (100) has the layer thickness detecting means (S4).
Based on the information of the above, the sorting control device of the threshing device configured to change the target processing capacity for the same value of the grain culm supply amount.