JP3446151B2 - Bucket discharging instruction device for earth drill excavator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides an instruction to discharge earth and sand from a bucket in order to prevent the bucket from being filled with earth and sand during excavation work by an earth drill excavator and lowering work efficiency. The present invention relates to a bucket earth removal instruction device for an earth drill excavator.

[0002]

2. Description of the Related Art In a conventional earth drill excavator, an operator operates an excavator to prevent the excavation efficiency of a bucket from being lowered by soil or the like.
Since he knew the depth of excavation from the depth gauge etc. and judged whether the bucket was full, experience was necessary, and he had to constantly look at the depth gauge display section,
The burden on the operator was heavy.

[0003]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the conventional ground drill excavator, the present invention enables excavation work without the operator looking at the depth gauge display. The purpose is to reduce the burden on the operator.

[0004]

[Means for Solving the Problems] Bucket depth setting means,
It has a sediment factor setting means, a means for detecting the length of excavation, a calculation section, and a display section for displaying a discharge instruction, and the calculation section has the bucket depth and the bucket depth set by the bucket depth setting means. A means for comparing the value obtained by multiplying the sediment coefficient set by the sediment coefficient setting means with the excavation length detected by the means for detecting the excavation length, and the excavation depth by this comparison means is the bucket depth and the sediment coefficient. And a means for outputting an earth unloading instruction signal and displaying the earth unloading instruction on the display unit when the value becomes larger than the value multiplied by.

[0005]

[Operation] The bucket depth and the sediment coefficient, which is a correction coefficient depending on the ground to be excavated, are input to the calculation unit. In addition to this, the excavation length which is constantly sent from the means for detecting the excavation length is input. By comparing these inputs, it is determined that the bucket is full of earth and sand, and the earth discharging instruction is displayed on the display unit. As shown in FIG. 4, assuming that the first excavation depth (excavation depth at the previous earth removal) is excavation depth 1 and the second excavation depth (current excavation depth) is excavation depth 2, the advancing length is The excavation length = excavation depth 2−excavation depth 1 is defined.

[0006]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic side view of an ass drill excavator, 1 is an ass drill main body, 2 is a bucket, and 3 is a depth gauge for displaying the position of the bucket in the soil as the excavation length. The bucket earth removal instruction device 4 is installed in the cab of the earth drill body 1.

FIG. 2 is a block diagram showing the construction of the bucket earth discharging instruction device 4. FIG. 3 shows a flow chart showing the flow of processing when the configuration of the block diagram of FIG. 2 is realized by using a microcomputer. The process flow of the bucket earth unloading instruction device will be described below with reference to FIGS. 2 and 3.

First, the bucket depth h set by the bucket depth setting means 7 is read (step 1). This bucket depth h is the depth of the bucket 2 attached to the ground drill. Next, the sediment coefficient k set by the sediment coefficient setting means 8 is read (step 2).

After the bucket depth h and the sediment coefficient k are read into the arithmetic unit 5, excavation work is started. The excavation length detected by the excavation length detecting means 6 is compared with the value obtained by multiplying the bucket depth h by the sediment factor k by the comparing means of the arithmetic unit 5 (step 3).

If the excavation length becomes larger than a value (k × h) obtained by multiplying k by h, it is judged that the bucket 2 is full of earth and sand, and an earth discharging instruction signal is output. (Step 4), an earth removal instruction is displayed on the display unit. A signal is output until the bucket is discharged (step 5). When the bucket is discharged, the excavation length is cleared to zero (step 6), and the above-mentioned flow is performed again. When the bucket depth h or the sediment coefficient k is changed, the bucket depth setting means 6 or the sediment coefficient setting means 8 sets again.

[0011]

As described above, according to the present invention, since the instruction for soil removal of the bucket is automatically given, unlike the conventional case, the soil removal work can be performed regardless of the skill and experience of the operator. It is possible to reduce the burden on the operator.

[Brief description of drawings]

FIG. 1 is a schematic side view of an earth drill excavator.

FIG. 2 is a block diagram showing a configuration of a bucket earth removal instruction device.

FIG. 3 is a flow chart showing a processing flow of the bucket earth discharging instruction device.
Chart.

FIG. 4 is a diagram for explaining the definition of a digging length.

[Explanation of symbols]

1 Aace Drill Main Body 2 Bucket 3 Depth Meter 4 Bucket Discharge Indication Device 5 Calculation Section 6 Excavation Length Detection Means 7 Bucket Depth Setting Means 8 Sediment Coefficient Setting Means 9 Display Section

Claims (2)

(57) [Claims] 1. A bucket depth setting means, a sediment coefficient setting means, a means for detecting the length of excavation, a calculation section, and a display section for displaying a discharge instruction, the calculation section including the bucket. A means for comparing the excavation length detected by the means for detecting the excavation length with a value obtained by multiplying the bucket depth set by the depth setting means and the sediment coefficient set by the sediment coefficient setting means, and this comparison When the excavation length becomes larger than the value obtained by multiplying the bucket depth and the sediment coefficient by the means for outputting, an earth discharging instruction signal is output, and means for displaying the earth discharging instruction on the display unit is provided. Earth drill excavator bucket dumping instruction device. 2. A bucket earth removal instructing device for an earth drill excavator, characterized in that a depth gauge is used as means for detecting the length of excavation.