JPH04258220A - Separation-control unit of combine - Google Patents

Abstract

PURPOSE:To prevent a separator from operating in a condition, where the separation value is a value corresponding to an amount of objects to be treated higher than the actual amount by specifying the value of the car speed used in a control unit for controlling the separation condition of the separator, in accordance with the value of the car speed. CONSTITUTION:Car speed data value ordered in a time series are inputted into a control unit and a separation unit (B) is controlled to a separation condition where, in the case of existence of grains and culms in a threshing chamber (A), the quantity of objects to be treated is controlled in proportion to the value of the car speed. As the value of car speed inputted into the control unit, data values ordered in a time series at the time for a prescribed time before that time point are used.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention provides a sorting device for sorting and processing leaked waste from a handling chamber, grain culm detection means for detecting whether or not there is grain culm in the handling chamber, and a chronologically detecting vehicle speed. A vehicle speed detecting means detects data as data, and based on information from the grain culm detecting means and the vehicle speed detecting means, when there is grain culm in the handling room, the sorting state is such that the larger the vehicle speed value is, the larger the amount of material to be processed is. The present invention relates to a sorting control device for a combine harvester, which is provided with a control means for adjusting the sorting state of the sorting device.

0002

2. Description of the Related Art Conventionally, the sorting state of a sorting device has been adjusted based on the vehicle speed value at that time.

0003

[Problems to be Solved by the Invention] In ordinary combine harvesters, it is difficult to stably detect whether or not there is a grain culm in the reaping section, so a grain culm detection means is generally provided in the handling chamber. By the way, since the grain culm remains in the handling chamber for a while even after the reaping work is finished, there is a delay in the grain culm detection means detecting the end of the reaping work. In addition, in the reaping work of rice, etc., when one working process is completed, the direction is changed at the headland and the next working process is started. At this time, the vehicle speed is often increased. Therefore, in the above-described conventional technology, there is a risk that the sorting state of the sorting device will correspond to a large amount of material to be processed due to an increase in vehicle speed when one work process is completed and the next work process is completed. be. In this case, a large amount of straw waste etc. will be mixed in with the first item. An object of the present invention is to solve the above-mentioned conventional drawbacks and improve the performance of a sorting control device for a combine harvester when one work process is completed and the next work process is started.

0004

[Means for Solving the Problems] In order to achieve this object, a first characteristic configuration of the combine harvester sorting control device according to the present invention is that the control means controls the value of the time series data before a predetermined time from that point in time. is configured to be used as the vehicle speed value. A second characteristic configuration is that the control means is configured to set the average value of the time series data from before a predetermined time to that point as the vehicle speed value.

[0005]

[Operation] The predetermined time in the first characteristic configuration may be any time that corresponds to the delay time when the grain culm detection means detects the end of the reaping operation. In this case, even if the speed is increased when one work process is completed and the next work process is completed, the sorting state of the sorting device is adjusted based on the vehicle speed value before the speed increase, so the sorting state of the sorting device is It is possible to prevent a situation in which the amount of processed material is larger than the actual amount. Similarly, in the second characteristic configuration, it is possible to prevent the sorting state of the sorting device from becoming a state corresponding to a larger amount of processed materials than the actual amount.

[0006]

Effects of the Invention: It is possible to prevent the sorting state of the sorting device from becoming a state corresponding to a larger amount of processed material than the actual amount, so when one work process is finished and the next work process is completed, the most It is possible to prevent a large amount of straw waste from being mixed into the container. As a result, a combine harvester sorting control device with excellent sorting performance can be obtained.

[0007]

Embodiments Hereinafter, embodiments of the present invention will be explained based on the drawings. As shown in FIG. 3, the combine harvester has a machine body V equipped with a crawler traveling device 1, a boarding control section 2, and a threshing device 3, and a drive mechanism that moves up and down freely around a horizontal axis that follows the width direction of the machine body at the front part. It consists of an attached reaping pre-processing section 4.

As shown in FIG. 5, the engine E and the drive case 1A of the crawler traveling device 1 are interlocked and connected via a belt tension type main clutch 1B and a traveling transmission 1C including forward/reverse switching. At the same time, the engine E and the threshing device 3 are connected to a belt tension type threshing clutch 3A.
are interlocked and connected via. Further, a part of the output transmitted to the drive case 1A is transmitted to the reaping pre-processing section 4 via a belt tension type reaping clutch 4A. A vehicle speed sensor S1 is provided as vehicle speed detection means for detecting vehicle speed as time series data based on the output rotation speed of the drive case 1A.

The reaping pre-processing section 4 includes a weeding tool 5 provided at its tip, a reel 6 for raking the planted grain rod toward the rear side of the machine body V, and a cutting device for cutting the stock part of the raked grain rod. It consists of a clipper-type cutting blade 7, an auger 8 that receives the cut grain rod and sends it out to the rear of the machine body V, and a rake-up conveyance section 9 that has three rotating drums arranged in parallel. Threshing device 3
The sorting system is equipped with a handling chamber A into which all of the harvested grain rods conveyed by the raking and conveying section 9 are input, and a swinging sorting plate 10 that acts to sort out the material leaked from the handling chamber A. It is equipped with a device B and a winch 11 that blows a selective air. The handling chamber A is provided with a handling cylinder 12 having a rotation axis that extends along the longitudinal direction of the machine body V and tilts upward toward the rear. Below the handling cylinder 12, a threshing process is carried out over approximately the entire length of the handling chamber A in the longitudinal direction. A catching net 13 for leakage is provided.

As shown in FIGS. 3 and 4, a ceiling cover 14 on the grain rod entrance side of the handling room A is provided with grain rod detection means for detecting whether or not there are grain culms in the handling room A. A contact type grain rod detection sensor S0 is installed. To further explain the grain rod detection sensor S0, it includes a contact piece 15 that is swingably attached around an axis parallel to the rotational axis of the handling barrel 12 so as to contact the object to be processed in the handling chamber A; A spring 16 that urges the contact piece 15 toward the side that contacts the handling cylinder 12
and a switch 17 that is turned on when the contact piece 15 swings beyond a set value. That is, when grain rods are supplied to the handling chamber A, the contact piece 15 comes into contact with the material to be handled by the handling barrel 12, turning on the switch 17, and when the supply of grain rods is stopped, the switch 17 is turned on. The switch is turned off because there is no more material to be processed that comes into contact with the switch. Thus, when the switch 17 is turned on, it is detected that the grain rods are being supplied, and when the switch 17 is turned off, it is detected that the grain rods are not being supplied. However, although it will not be described in detail, since the grain rod will be intermittently in contact with the contact piece 15, if the switch 17 remains in the OFF state for more than a set time (set to 2 seconds). is made to determine that the grain rod is in a non-supply state.

As shown in FIG. 3, the swing sorting plate 10 includes a grain pan 18, a chaff sieve 19, and a chaff sieve 19, which are arranged sequentially from the front to the rear.
Each part of the grain sheave 20 is fixed between a pair of left and right side plates 21, and the entire grain sheave 20 is formed into a plate shape. At the bottom of sorting device B,
A first-product recovery unit 22 that collects grains leaking from the grain sieve 20 as the first product, and a process for handling grains mixed with straw waste that falls beyond the terminal end of the chaff sieve 19 or the terminal end of the grain sieve 20. A second object collecting section 23 is provided for collecting objects (abbreviated as second objects in the following description). Although not described in detail, the second items collected from the second item collecting section 23 are returned to the handling room A and are handled and processed again.

As shown in FIG. 6, the chaff sieve 19 is
A plurality of band plate members 19a arranged in parallel in the processing material transfer direction (horizontal direction in the figure) are rotatably attached to the left and right side plates 21 with their upper ends serving as fulcrums,
The operating rod 2 to which the lower end of each strip member 19a is pivotally connected
By pushing and pulling 4 in the front-back direction, the interval t (sometimes abbreviated as chaff opening degree in the following description) between the band plate-like members 19a can be changed and adjusted. An electric motor M1 is provided as an actuator for changing the chaff opening, and a link mechanism 25 driven by the electric motor M1 and an operating rod 24 are interlocked and connected by a release wire 26. In the figure, 27 is a spring that biases the chaff opening back to the closing side, and S2 is a potentiometer-type chaff opening detection sensor that detects the operation amount of the operating rod 24 by the electric motor M1 as the chaff opening.

The winnowing machine 11 is constructed using a so-called split pulley type continuously variable transmission so that the amount of air blown can be changed and adjusted by varying its rotational speed. To explain, as shown in Fig. 7, the karaki 11
The input pulley 28 that rotationally drives the input pulley 28 is configured as a split pulley, and the operation arm 29 that changes the diameter of the input pulley 28 is connected to an electric motor M as an actuator for adjusting the air flow rate.
2 so that it can be rotated. Therefore, by adjusting the rotational speed of the winnowing machine 11 to a high or low level using the electric motor M2, it is possible to change or adjust the air flow rate (sometimes abbreviated as a blowing air volume in the following explanation) to a higher or lower level. In the figure, 30 is a release wire that interlocks and connects the operating arm 29 with the linkage mechanism 32 driven by the electric motor M2, and S3 is a potentiometer type airflow detection device that detects the amount of operation of the operating arm 29 as the airflow rate. It is a sensor.

In other words, the sorting device B can adjust the sorting state according to the size of the leaked material from the handling room A by adjusting the chaff opening degree to a large or small degree and adjusting the volume of airflow to a strong or weak degree. It is composed of and,
Basically, the sorting state is automatically adjusted according to the amount of leaked material, so that the larger the amount of leaked material from handling room A, the larger the chaff opening and the stronger the blowing air volume. It has become.

Next, a control configuration for adjusting the sorting state of the sorting device B will be explained. As shown in FIG. 1, a control device H using a microcomputer is provided, and the control device H includes a grain rod detection sensor S0, a vehicle speed sensor S1,
Chaff opening detection sensor S2, Toumi airflow detection sensor S3
, a chaff opening degree setting device S4 for changing and adjusting the target chaff opening degree for the same amount of processing material, and a chaff air volume setting device S5 for changing and adjusting the target chaff air volume for the same amount of processing materials are connected. And the control device H
is configured to control the operation of the electric motor M1 for adjusting the chaff opening degree and the electric motor M2 for adjusting the air flow rate based on information set and stored in advance and various input information. That is, the control means 100 using the control device H
is configured.

Next, the operation of the control device H will be explained with reference to the flowchart shown in FIG. When the control is started, first, the handling room A is
Detect whether there is a grain culm inside. When in the grain rod supply state, a target value of the chaff opening degree is calculated according to the vehicle speed with the upper limit set by the chaff opening degree setting device S4. or,
A target value of the airflow rate is calculated according to the vehicle speed, with the value set by the airflow setting device S5 as the lower limit. Here, the vehicle speed value uses the value of time series data before a predetermined time from that point. If the grain rod is not being supplied, it is checked whether the grain rod detection sensor S0 has changed from ON to OFF and a set time has elapsed. That is, basically, when the reaping operation is not in progress, there is no waste to be leaked from the handling room A, so the target values for the chaff opening degree and the trough air volume are set to the preset minimum values. However, immediately after the reaping work is completed,
Since the processed material remains in the handling chamber A for a while, the leakage of the processed material to the sorting device B does not stop immediately, but gradually decreases over time. Therefore, the target values of the chaff opening degree and the amount of airflow from the chaff are gradually changed to smaller values until a set time has elapsed after the end of the reaping operation. After the target values for the chaff opening and the airflow rate are determined, the electric motor M1 for adjusting the chaff opening and the electric motor M2 for adjusting the airflow are operated so that the chaff opening and the airflow become the target values, respectively. let

[Another Embodiment] In the above embodiment, the case where both the chaff opening degree and the winding air volume are automatically adjusted is exemplified, but it is also possible to adjust only one of the chaff opening degree or the winding air volume. good. In the above embodiment, the value of the time series data before a predetermined time is used as the vehicle speed value, but the average value of the time series data from before the predetermined time up to that point is used as the vehicle speed value. Good too. Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

[Figure 1] Block diagram of control configuration

[Figure 2] Flowchart of control operation

[Figure 3] Cutaway side view of combine harvester

[Figure 4] Cutaway front view of handling room

[Figure 5] Transmission system diagram

[Figure 6] Explanatory diagram of chaff opening adjustment mechanism

[Figure 7] Explanatory diagram of Toumi air volume adjustment mechanism

[Explanation of symbols]

A Handling room B Sorting device S0 Grain culm detection means S1 Vehicle speed detection means 100 Control means

Claims (2)

[Claims] Claim 1: A sorting device (B) for sorting and processing the leaked material from the handling chamber (A), and a grain culm detection means (S0) for detecting whether or not there is grain culm in the handling chamber (A). ), a vehicle speed detection means (S1) that detects the vehicle speed as time series data, and a grain culm in the handling room (A) based on information from the grain culm detection means (S0) and the vehicle speed detection means (S1). A control means (1) for adjusting the sorting state of the sorting device (B) so that the larger the vehicle speed value is, the larger the amount of material to be processed is at some time.
00), wherein the control means (100) is configured to use the value of the time series data before a predetermined time from that point as the vehicle speed value. Combine sorting control device. [Claim 2] A sorting device (B) for sorting the leaked waste from the handling chamber (A), and a grain culm detection means (S0) for detecting whether or not there is grain culm in the handling chamber (A). ), a vehicle speed detection means (S1) that detects the vehicle speed as time series data, and a grain culm in the handling room (A) based on information from the grain culm detection means (S0) and the vehicle speed detection means (S1). A control means (1) for adjusting the sorting state of the sorting device (B) so that the larger the vehicle speed value is, the larger the amount of material to be processed is at some time.
00), wherein the control means (100) is configured to set the average value of the time-series data from before a predetermined time to that point as the vehicle speed value. A sorting control device for a combine harvester.