JPS6019968B2 - combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a technology for controlling the traveling speed of a combine harvester.

Conventional combine harvesters, which control the running speed with the purpose of maintaining the threshing load within a set range, have no threshing load during non-working periods, such as at the beginning of work or when traveling on headlands for rounding. Therefore, there was an inconvenience that the traveling speed was controlled to the maximum speed state.

An object of the present invention is to effectively utilize the threshing load detection configuration to eliminate the above-mentioned disadvantages.

Next, embodiments of the present invention will be described in detail based on the drawings.

A pulling device 1 that bows the grain stalks in the field, a reaping device 2 that reaps the raised grain stalks, and a reaping device 2 that reaps the grain stalks that have been raised in the field.While conveying the harvested grain stalks toward the rear and upper part of the machine, the machine changes its posture to a horizontal position and feeds it. A vertical conveying device 4 that transfers the grain to the chain 3, a threshing section 5 that threshes the grain while holding and transporting it with the feed chain 3, and a shiode E that discharges the 9E straw after threshing into the field without cutting it or cutting it. The straw processing section 6 is installed on a traveling machine which is sequentially equipped with a crawler traveling device 7 and a control section 8, and as it travels, it can continuously harvest grains in the field. The combine harvester is configured as follows.

The traveling device 7 is configured to be driven by a hydraulic motor, and is configured to be able to change gears by changing the swash plate angle of the hydraulic transmission by operating a shift lever 9. A rotating torque detector 11 is attached to the handling ear coaxial 10 of the threshing section 5 to detect the threshing load, and an angle meter 12 is attached to the speed change lever 9 to detect its operating angle. It is configured to detect the traveling speed corresponding to each corner.

The threshing load and traveling speed detected by the rotational torque detector 11 and the angle meter 12 are input to the comparison mechanism 13, and the comparison result is transmitted to the notification mechanism 14, which determines whether the traveling speed is appropriate or not and changes it based on the threshing load. It is configured to display the desired direction. FIG. 3 of the drawings shows a circuit for this notification.

In this circuit diagram, e is a set value that serves as a reference when determining whether it is a working state or a non-working state based on the threshing load, and the detected value of the rotational torque detector 11 and this set value e, The situation of the combine harvester can be grasped by comparing the values with the above, and the form of notification can be changed, that is, switch 17 in the figure can be switched to select whether to aim for an appropriate threshing load or an appropriate running speed. Ru. Also, e2 in the figure
is the lower limit value of the appropriate threshing load during work, e3 is its upper limit value, and V in the figure is the reference speed value used when traveling during non-work. The notification mechanism 141 also includes a red lamp L and a blue lamp L2 as notification means. Therefore, in the circuit shown in FIG. 3, when the threshing load detected by the rotating torque detector 11 is greater than the set value e, the switch 17 is switched to the torque detector 11 side to display the following display form. Take.

In other words, the actual threshing load is the upper limit e3 of the appropriate threshing load.
If the threshing load is larger than that, the red lamp L is turned on to display an indication to reduce the traveling speed, and when the threshing load is within the range of e2 and e3, the blue lamp L2 is turned on as a proper state, Further, when the threshing load is smaller than the lower limit value e2, both lamps L, L2 are turned off to indicate that the speed can be increased. Further, when the threshing load detected by the rotational torque detector 11 is smaller than the set value e, when the machine is not working, the switch 17 is turned to the angle gauge 12 side, and the following display form is taken. That is, the traveling speed detected by the angle meter 12 of the shift lever 9 is the reference speed V.
If the speed is greater than the reference speed V, the red lamp L is lit to indicate deceleration, and if the running speed is 4 mm below the reference speed V, the blue lamp L2 is lit to indicate proper running condition. . In order to detect the threshing load, the method is not limited to one in which a detector 11 is provided to detect the rotational torque on the coaxial shaft 10, but also in the vertical screw shaft 16 that supplies the second grain to the processing cylinder 15 for reprocessing. Various structures can be adopted, such as providing a threshing load detection mechanism 11.

In order to detect the running speed, it is not limited to the detection of the operating angle of the gear shift lever 9, but various structures such as a rotation speed detector provided on the running shaft can be adopted, and the running speed detection mechanism can be implemented using these methods. Collectively referred to as 12.

Incidentally, the notification mechanism 14 may be an alarm such as a buzzer, instead of the lighting of a lamp.

The above are examples of the present invention. As is clear from this embodiment, the combine harvester of the present invention compares the detection results from the threshing load detection mechanism 11 and the traveling speed detector 12 with the comparison mechanism 1.
In the range larger than the predetermined setting value for determining whether the threshing load is in a working state or a non-working state, the traveling speed is determined to be appropriate or not, with the aim of achieving an appropriate threshing load during threshing work. An instruction signal indicating the direction to be changed is transmitted from the comparison mechanism 13 to the notification mechanism 141, and in a range where the detected threshing load is smaller than the set value, the vehicle travels with the target of an appropriate travel speed during non-threshing work. It is characterized in that an instruction signal indicating whether the speed is appropriate or not and the direction in which it should be changed is transmitted from the comparison mechanism 13 to the notification mechanism 14. In other words, threshing load detection mechanism 1
By detecting whether the threshing load detected by 1 is in a range larger or smaller than the set value, it is determined whether the machine is traveling during non-work or during work, and a control form corresponding to each is adopted. While working efficiently by maintaining the threshing load appropriately, this system avoids the dangerous situation of unexpectedly running at high speed when not working.
Now I can drive safely.

Furthermore, since it is determined whether the machine is working or not working depending on the magnitude of the detected threshing load, there is no need for a special detection sensor or the like.

[Brief explanation of drawings]

The drawings show an embodiment of the combine harvester according to the present invention, with FIG. 1 being an overall side view, FIG. 2 being a block diagram, and FIG. 3 being an overall circuit diagram. DESCRIPTION OF SYMBOLS 11... Threshing load detection mechanism, 12... Traveling speed detection mechanism, 13... Comparison mechanism, 14... Notification mechanism, display mechanism. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. The detection results from the threshing load detection mechanism 11 and the traveling speed detector 12 are input to the comparison mechanism 13, and a predetermined setting value is set in order to determine whether the detected threshing load is in a working state or a non-working state. In a larger range, the comparator mechanism 13 is configured to transmit an instruction signal indicating whether or not the traveling speed is appropriate and the direction in which it should be changed, aiming at an appropriate threshing load during threshing work, and the detected threshing load is set as the target. In a range smaller than the set value, the comparator 13 sends an instruction signal to the notification mechanism 14 to indicate whether or not the traveling speed is appropriate and the direction in which it should be changed, aiming at the appropriate traveling speed during non-threshing work.
A combine harvester configured to transmit information to