JP2006177104A - Operation instructing device for boring machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To dispense with complicated and expensive automatic control equipment and to enable an operator to perform boring operation with appropriate determination if necessary. <P>SOLUTION: This operation instructing device for a boring machine has a striking pressure sensor 31, a damper pressure sensor 33, rotation pressure sensors 34, 35, feed pressure sensors 36, 37 and a flushing pressure sensor 38 for detecting the operating situation of a striking mechanism 13, a damper 17, a rotating mechanism 9 and a flushing mechanism 14 of a hydraulic crawler drill 1; and a computer 50 determining the importance of the detected operation situation and outputting stepwise operation guide information for an operator according to the importance to a monitor 50, a loudspeaker 52 and an external indicating lamp 53. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention detects the operating status of the operating part of the drilling machine, judges the importance of the detected operating status, conveys step-by-step operation guide information to the operator according to the importance of the operating status, and pays attention. The present invention relates to an operation guide device for a drilling machine that reduces the operator's work load by calling out.

Drilling machines such as crawler drills, anchor drills, jumbo, down the hole, etc. used for drilling work in civil engineering, mining, quarrying, etc. transmit striking and rotation from the drilling machine to the bit attached to the tip of the rod, A drill is given to the rock drill.
In drilling work, the rock quality of the drilling target is an important factor for work efficiency and safety, and the operator can check the operating status of each operating part of the drilling machine in various pressures provided in the operator cabin. The drilling machine is judged according to the rock quality by comprehensively grasping the drilling target rock quality by visually and auditorially understanding from the display of the meter and the behavior of the drilling machine and the drilling sound. Drill holes while adjusting the operating conditions of each operating part.

However, such drilling work requires constant adjustment by monitoring the operation status of the drilling machine at all times, which increases operator fatigue.
Therefore, a rock quality measuring device provided with a detecting means for detecting the operating status of each operating portion of the drilling machine and a discriminating means for comparing the detection data of the detecting means with a predetermined reference value to discriminate the rock quality (Patent Document) 1), detecting means for detecting the operating state of each operating portion of the drilling machine, and storing the required drilling data, and detecting data from the detecting means and the drilling data based on the stored drilling data. An automatic drilling machine (see Patent Document 2) equipped with an automatic control device that controls the operation and a display input device that can input data from the input screen to the automatic control device has been developed.

However, in order to automatically control the drilling machine, a complicated control device is required, and the product price becomes extremely expensive. In addition, since many complicated control devices are used, the reliability of the product is inevitably lowered.
Moreover, in drilling operations that target a wide variety of rocks, optimal control is not always performed by an automatic drilling machine in all situations. In the program control by the automatic control device, the operation specified by the program is performed accurately and quickly. However, when an unexpected rock quality in which data is not stored is encountered, it cannot operate normally. In the case of quality holes, there are cases in which it is ultimately left to human judgment.

Some automatic drilling machines have drilling status display means near the driver's seat and can monitor the progress of drilling work by displaying the drilling status. In the hole status display, the complicated drilling status cannot be reliably communicated to the operator, and the operator cannot appropriately deal with it. In addition, when the operator leaves the driver's seat for inspection of the hole opening, no information can be transmitted.
Japanese Patent Laid-Open No. 07-063000 JP-A-10-306676

  The present invention solves the above-described problem in a drilling machine, and does not require a complicated and expensive automatic control device, and allows the operator to make an appropriate judgment and drilling operation as necessary. An object of the present invention is to provide an operation guidance device for a machine.

The drilling machine operation guide device according to the present invention comprises an operation detection means for detecting the operating status of each operating part of the drilling machine, and judges the importance of the detected operating status, and stepwise according to the importance. The above-mentioned problem is solved by providing a situation determination means for outputting operation guide information to the operator.
In this operation guide device, the operation detection means detects the operation status of each operating part of the drilling machine, the status determination means determines the importance of the detected operation status, and the operator is stepped according to the importance The operation guidance information is output.

The output of the operation guidance information is reliably transmitted to the operator through visual and auditory senses by display means such as display of characters and images on the monitor, voice message from the speaker, and blinking with an indicator lamp. As the information display means, an instrument such as a pressure gauge already installed in the operator cabin or a warning light can be used.
Since step-by-step operation guidance information is provided, the operator can accurately grasp the drilling situation by checking the operation guidance information on the display means, and when work to avoid danger is necessary or immediately stop the operation. If you have to do this, you will be alerted and perform the required operation. In other cases, there is no need for detailed monitoring and adjustment.

Therefore, although the actual drilling machine is operated by the operator himself, not by automatic control, the operator's fatigue is greatly reduced.
If an unexpected situation is encountered and it is difficult to make a single judgment on the instruction to be operated by the situation judging means, a plurality of operation guidance information can be output and the final judgment can be left to the operator. Inconvenience due to automatic control can be avoided.
The seating detection means detects whether the operator is seated in the driver's seat, and when the operator leaves the driver's seat, the operation guidance information can be transmitted outside the driver's seat by the external transmission means. Even when the operator leaves the driver's seat, the drilling condition can be easily grasped.

The drilling machine operation guide device of the present invention does not require a complicated and expensive automatic control device, can suppress an increase in product price, and improves the durability of accessories. Since it can be composed only of sensors and electronic equipment and can use existing equipment such as pressure gauges, it can be easily mounted on existing drilling machines.
Moreover, an operator can make an appropriate judgment and drill operation as necessary.

FIG. 1 is a configuration diagram of an operation guide device for a drilling machine according to an embodiment of the present invention, and FIG. 2 is a perspective view of a hydraulic crawler drill provided with the operation guide device.
Here, in the hydraulic crawler drill 1, a boom 8 is provided on a traveling carriage 5 provided with a track frame 2 so as to be able to turn up and down, and a guide shell 11 on which a rock drill 10 is mounted is provided at the tip of the boom 8. Tilt and swing are supported. The shank rod 3 is inserted into the rock drill 10. A rod of a predetermined length is connected to the shank rod 3 by a sleeve, and a bit is attached to the tip of the rod.

  The rock drill 10 includes a striking mechanism 13, a damper 17, a rotating mechanism 9, and a flushing mechanism 14, which is fed by a feed motor 12 provided in the guide shell 11 and can move back and forth. The striking and rotation are transmitted from the shank rod 3 to the bit through the rod, and drilled in the rock. The flushing mechanism 14 supplies compressed air to the rod to discharge the dust. A dust pot 18 is provided at the tip of the guide shell 11 so as to cover the hole mouth. The dust pot 18 is connected to a dust collector (not shown) and collects discharged dust.

On the traveling carriage 5, there are a hydraulic pump 15 for supplying pressure oil to the striking mechanism 13, damper 17, rotating mechanism 9, and feed motor 12, and a compressor 16 for supplying compressed air to the flushing mechanism 14. is set up.
From the hydraulic pump 15 via the control valve 4, a striking line 21 and a return line 22 are connected to the striking mechanism 13, a damper line 23 is connected to the damper 17, and a normal rotation line 24 is connected to the rotating mechanism 9. A reverse line 25 is connected, and a forward line 26 and a reverse line 27 are connected to the feed motor 12. In addition, a flushing conduit 28 is connected between the compressor 16 and the flushing mechanism 14.

  As an operation detecting means for detecting the operation state of the impact mechanism 13, the damper 17, the rotation mechanism 9, the feed motor 12, and the flushing mechanism 14, which are the operation parts of the hydraulic crawler drill 1, an impact pressure sensor 31 and a damper are provided in the impact line 21. A damper pressure sensor 33 is connected to the pipe line 23, rotational pressure sensors 34 and 35 are sent to the forward rotation line 24 and the reverse line 25, feed pressure sensors 36 and 37 are sent to the forward line 26 and the reverse line 27, and the flushing line 28 is A flushing pressure sensor 38 is provided. Further, an impact flow sensor 41 is provided in the impact pipeline 21, a rotational flow sensor 44 is provided in the forward rotation pipeline 24, a feed flow rate sensor 46 is provided in the forward advance pipeline 26, and a flushing flow rate sensor 48 is provided in the flushing pipeline 28.

The driver's seat 7 in the operator cabin 6 is provided with a seating sensor 49 as seating detection means for detecting whether the operator is seated on the driver's seat 7.
In addition, the operator cabin 6 is provided with a computer 50, a monitor 51, a speaker 52, and three-color (green, yellow, red) external indicator lamps 53 as status determination means.
Impact pressure sensor 31, damper pressure sensor 33, rotational pressure sensors 34, 35, feed pressure sensors 36, 37, flushing pressure sensor 38, impact flow sensor 41, rotational flow sensor 44, feed flow sensor 46, flushing flow sensor 48, and The operating status of each operating unit detected by the seating sensor 49 and information on the presence or absence of seating are sent to the computer 50.

The computer 50 determines the importance level of the operating state according to the judgment criteria stored in advance, and sends operation guidance information to the operator in stages according to the importance level to the monitor 51, the speaker 52 and the external indicator lamp 53.
The importance level of the operating situation is classified into at least four stages, and the expression of the operation guidance information is changed according to the importance level.
An example of the classification of importance levels is shown in Table 1.

In the example of Table 1, the state of operating smoothly is the importance level 1, the operation is not particularly necessary, the importance level 2 is the situation that requires attention, and the severity level 3 is the situation that requires some danger avoidance work. The situation where the work should be stopped immediately is given an importance level of 4.
At the importance level 1, a normal background screen (for example, tropical fish) is displayed on the monitor 51, BGM or a radio program is played from the speaker 52, and the external display lamp 53 is lit in green.

At importance level 2, the monitor 51 displays a static character and a still image, or displays the status of various sensors to call attention to an existing instrument such as a pressure gauge without changing the background screen. After that, voice guidance indicating that attention is required is performed, and the external indicator lamp 53 is lit yellow.
At the importance level 3, the monitor 51 displays a stationary character and a moving image showing a dangerous state with a single background color, or an enlarged display of various sensor states, and a buzzer is displayed from the speaker 52. Later, voice guidance indicating that the state is dangerous is performed, and the external indicator lamp 53 is lit red.
At the importance level 4, the monitor 51 displays a stationary character and a still image indicating a dangerous state in a single color with blinking on the monitor 51, alarms with an intermittent buzzer from the speaker 52, and the external indicator lamp 53 blinks all the lights.
Table 2 shows an example of criteria for classifying importance levels.

Here, with regard to the flushing pressure, importance is 1 at 0.4 MPa or more, importance 2 at 0.25 MPa or more and less than 0.4 MPa, importance 3 at 0.1 MPa or more and less than 0.25 MPa, importance at less than 0.1 MPa. 4 is judged.
Further, the rotational pressure is determined to be an importance level 1 if it is less than 5 MPa, an importance level 2 if it is 5 MPa or more and less than 7 MPa, an importance level 3 if it is 7 MPa or more and less than 10 MPa, and an importance level 4 if it is 10 MPa or more.

  As for the feed rate, the importance is 1 if it is 1 cm / s or more and less than 2 cm / s, the importance is 0.5 or more and less than 1 cm / s, or 2 or 0.3 cm / s if it is 2 or more and less than 2.5 cm / s. If the value is less than 0.5 cm / s or less than 2.5 cm / s and less than 3.5 cm / s, the degree of importance is 3, and less than 0.3 cm / s, or more than 3.5 cm / s, the degree of importance is 4. The feed speed is obtained by the computer 50 based on the flow rate information detected by the feed flow rate sensor 46.

As for the impact pressure, it is determined that the importance is 1 if it is 12 MPa or more and less than 17 MPa, or the importance is 3 if it is 10 MPa or more and less than 12 MPa, or if the impact pressure is less than 10 MPa, it is 4 importance.
It is also possible to add importance by combining these.
The type and quantity of sensors, the classification of the level of importance, and the method of expressing the operation guidance information are not limited to the above, and various methods are selected according to the characteristics of the machine and the content of the work.

The output of the operation guidance information is reliably transmitted to the operator by displaying characters and images on the monitor 51, a voice message from the speaker 52, blinking of the external indicator lamp 53, and the like.
Step-by-step operation guidance information is provided so that the operator can accurately grasp the drilling conditions and take care when danger avoidance work is required or when work must be stopped immediately. Aroused and performs the required operation. In other cases, there is no need for detailed monitoring and adjustment.

Therefore, the actual drilling operation of the hydraulic crawler drill 1 is not performed automatically but by the operator himself, but the operator's fatigue is greatly reduced.
If an unexpected situation is encountered and it is difficult to make a single determination on an instruction to be operated by the information determination output means, a plurality of operation guide information is output and the final determination is left to the operator.

  In the drilling operation, the operator may leave the driver's seat 7 and go out of the operator cabin 6 for inspection of the drill hole opening. When the operator leaves the driver's seat 7, the operation guidance information is transmitted to the outside of the operator cabin 6 by the speaker 52 and the external indicator lamp 53 serving as external transmission means. Even if it comes out, the drilling situation can be easily grasped.

It is a block diagram of the operation guide apparatus of the drilling machine which shows one Embodiment of this invention. It is a perspective view of the hydraulic crawler drill provided with the operation guide apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hydraulic crawler drill 2 Track frame 3 Shank rod 4 Control valve 5 Traveling carriage 6 Operator cabin 7 Driver's seat 8 Boom 9 Rotating mechanism 10 Drilling machine 11 Guide shell 12 Feed motor 13 Blowing mechanism 14 Flushing mechanism 15 Hydraulic pump 16 Compressor 17 Damper 21 Stroke line 22 Return line 23 Damper line 24 Forward line 25 Reverse line 26 Forward line 27 Reverse line 50 Computer 51 Monitor 52 Speaker 53 External indicator lamp

Claims (2)

  Operation detection means for detecting the operation status of each operating part of the drilling machine, and status determination means for determining the importance of the detected operation status and outputting step-by-step operation guide information to the operator according to the importance A drilling machine operation guide device characterized by comprising: A seating detecting means for detecting whether the operator is seated in the driver's seat, and an external transmission means capable of transmitting operation guidance information outside the driver's seat when the operator leaves the driver's seat. The operation guide device for a drilling machine according to Item 1.

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