JPS59213308A - Automatic plowing depth control apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic plowing depth control device for a pounding ground work machine, such as a rotary tiller, which is connected to a tractor VC.

The work equipment angle detector (21) detects the forward and backward inclination angle Zl to the ground surface ((2) of the ground work machine +11, and the tillage depth indicator lever (3) detects the ground surface (dK) of the ground work machine (1).
The ground work equipment (i) 2. ) Work machine elevating mechanism (5) 7 An automatic plowing depth automatic control device that controls the elevating and lowering of the working machine is well known.

And work equipment angle detector (2) TFI Figure 1 (b)
As illustrated in Figure 2, there is a main body (6) fixed to the ground work machine (1), one resistance wire (7), a freely rotatable weight (8), and one sliding body. The child (9) slides and the slider (
9) and the resistance wire (7) and the terminal (Bl) to detect the slope angle with respect to the ground surface (Gl) of the ground work machine (11). ] When work is being carried out at a depth of tillage (■), as shown in Figure 2 (a), when the tractor (4) enters the sloped land (G1) [), the ground work machine (11 Both of them are troublesome to excavate (so the main body (6) of the work equipment angle detector (2) and the resistance wire (7) are also removed at the point of contact ( The potential between A1) and the terminal (810) increases, and the comparison control unit determines that the plowing depth is too greater than the desired plowing depth (Hl) of 4, and a rise command is issued from the control unit, causing the ground work machine ( 1) rises, and the position shown in Figure 8 (the state shown in Figure 1 (this is the same as Figure 1 (b)) Vcf'F, the industry angle I! \ detector (2) returns,
In other words, as shown in Fig. 8 (A1), the tillage body 00 is held at a position where it hardly injects, and when it enters the slope, the tillage depth control becomes difficult. There is a problem that the angle detector goes out of order, and this problem occurs even if the work implement angle detector is a bubble type.

Therefore, in this invention, we have provided a work equipment angle detector that detects the longitudinal inclination angle of the ground work equipment suspended by the work equipment lifting mechanism of the traction machine, and a work equipment angle detector that detects the longitudinal inclination angle of the ground work equipment. A plowing depth instruction device purchased by VC to give instructions, and v
In an automatic tillage depth control device that includes a comparison control unit that issues a command to the working machine lifting mechanism so that the tillage depth detection 1st shift matches the tillage depth indication by the F depth indicating device, the tillage depth is tilted in the longitudinal direction of the traction machine. The tillage depth automatic control device is configured to include a machine angle detector that detects the angle, and a correction section that corrects this machine angle in a comparison operation in a comparison control section IC. Since the longitudinal inclination of the machine is corrected by the angle detector and correction unit of the machine, automatic plowing depth control is performed on sloped land as instructed by the plowing depth indicator, in the same way as plowing depth control on non-sloping ground surfaces. It was devised to look as if it were being tamed.

Next, one embodiment of the present invention will be explained based on the drawings.
As shown in FIG. 5, for example, the tilling depth indicating lever (the tilling depth indicating device αB which indicates the tilling depth by (to)) which is in sliding contact with the resistance line Ql)K of the button yometer is configured, and this tilling depth indicating voltage is set as input to the comparison control unit α4, and the ground work machine (
Detected by the work equipment angle detector (2) installed with 11ic
Plowing depth detection 11! is input to the comparison control unit 0→ as a voltage value, and the switching valve [15] of the working machine lifting mechanism (5) is input to the comparison control unit a so that the plowing depth instruction I [Vc plowing exploration detection matches
It is configured to be controlled by →.

The angle detector (to) that detects the inclination angle of the tractor (4) in the longitudinal direction is exemplified by oil.

A transparent circular tube containing a liquid such as water and air bubbles (b).
18) The disk (attached to 1φ, supporting the rotating shaft H7 of the first shaft with the bearing of the box body @, and the damping oil enclosed in the box body) rotates. The brake is attached to the blade example attached to the driving shaft (21). When rotating with an inclination, the I/C vibration movement is prevented, and when the VC is momentarily tilted down, for example, by running over a stone, the operation of [tri, the machine angle detector 06) F!JJ' ?r, prevented.

Circular tube (18) *Light emitter (25a) facing each other
) (25b) (25c)... and the light receiving section (26a) (
26b) (26c)...11 disks (arranged and fixed on concentric circles at 1 o'clock, light receiving parts (26a) (j2fSb) (26
c) - is connected with a resistance wire (b), and the light emitting part (25a) (2
5bX25c)...Is the light emitted from λ a bubble (17)?
After passing through r, the light receiving part (26f) closest to 11 is energized and the resistance wire is removed)'? f-current flows and the tractor (4
), i.e., the machine angle r1 and the voltage value Δ−, the correction unit f281? The comparison control section inputs the information to the comparison control section (1) through the t-t, and the comparison control section performs a judgment operation by taking into account the angle of this machine and the 1 work equipment angle detector (21 detectors). Ground work equipment on slopes (G construction)
It is configured to correct the inclination of II itself in the longitudinal direction.

In other words, Fig. 8 (G
In the case of 1), the work equipment angle detector [21
Detection ['C> minus t is the true plowing depth detection box.Also, although not shown in the diagram, on slopes where the front is downward, the machine angle +ii'r, the working machine What is added to the angle detector becomes the tiller.
) may have a structure in which the slider slides on the resistance wire.

The automatic plowing depth control device according to the present invention is configured as described above, and has a forward and backward slope angle of the tractor (4),
That is, the machine angle is detected by the machine angle detector α6), and the correction unit CI! Since plowing depth control is performed by correcting the detector of this machine's angular work equipment angle detector (2) using 8+, even if it is sitting on a slope, the slope angle in the direction of movement will be taken into account and corrected. Therefore, accurate automatic control of plowing depth is now possible at all times.

[Brief explanation of the drawing]

Figures 1 (a) to 8 [oIF! , the conventional one is shown,
Figure 1 (A1), Figure 2 (A1), and Figure 8 (A) are side views of the plowing work, Figure 1 (A), Figure 2 (B1), and Figure 3 (B) are the same views respectively. (A side view of the work equipment angle detector in IIc, Figure 4 and subsequent figures show one embodiment of the present invention. Figure 4 is an overall side view, Figure 5 is a control circuit diagram, and Figure 6 is a main It is a vertical front view of the main part of the machine angle detector. Reference numeral explanation (11... Ground plowing machine (2)...
Work equipment angle detector (4)...Tractor (
5)... Work equipment lifting mechanism α cap... Cultivation depth indicating device α lift... Comparison control section T16)...
・This device angle detector Example: Correction department patent applicant
Takayoshi Hayashi, patent attorney for Iseki Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] A work equipment angle detector detects the oblique angle in the longitudinal direction of the ground work equipment suspended by the work equipment lifting mechanism of the tractor, and a groove is installed to indicate the forward and backward oblique angle of the ground work equipment for deep plowing. Tilling depth indicating device that has bottomed out and tilling depth instruction 1 using the tilling depth indicating device
Command the work equipment lifting mechanism to match the above υF exploration output to 1i1j? A tillage depth automatic control device consisting of a comparison control unit that provides a machine angle detector 7 that detects the same slope angle t of the front and rear of the tractor is provided, and this machine angle is corrected in the comparison operation in the comparison control unit. An automatic plowing depth control device provided in a correction section as described above. ,