JPH0224994B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a method for displaying the work rate in a drilling device such as a hydraulic crawler drill, in particular, the work rate based on the working time, fuel consumption and drilling length. The present invention relates to a display device.

[Conventional technology]

Drilling work using a drilling device such as a hydraulic crawler drill at a mining site is performed by driving a hydraulic pump using engine power and operating the drilling machine through hydraulic control. Such work using drilling equipment varies considerably due to differences in natural conditions such as geology and scaffolding at each site, and also due to differences in the way the work is carried out by individual workers.
Nevertheless, there is a strong interest in work efficiency, and guidelines for improving it have been obtained by actually measuring the working time, fuel consumption, and hole length from the start to the end of work using drilling equipment.

[Problem that the invention seeks to solve]

However, since such conventional measurement work is performed manually, it is difficult to perform it on a daily basis except under a special plan. In addition, in recent years, there has been a desire for rational and effective operation of drilling equipment from the perspective of saving fuel and improving work efficiency, but appropriate countermeasures have not been implemented. .

[Purpose of the invention]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a work rate display device that allows an operator to quickly and clearly check the work rate of a drilling device obtained by his/her own operation for each job.

[Means for solving problems]

In order to achieve the above object, this invention:
For a series of operations from the start to the end of the operation, an elapsed time detection means for measuring the working time or a drilling length detection means for detecting the drilling length, a fuel consumption amount detection means for measuring the fuel consumed, and these detection means. Comprising a calculation processing means for receiving a signal from the means and calculating and storing a work rate regarding fuel consumption with respect to working time or drilling length, and a display means for displaying the work rate determined by the calculation processing means. The results of each calculation by the calculation processing means are displayed together with the data obtained so far or the optimum value indicating the work rate, and when the work rate at each time is better than the optimum value, the results are displayed each time The work is updated as the next optimal value.

[Effect]

By appropriately configuring the display device of the present invention, the operator can refer to the work rate regarding fuel consumption relative to the working time or drilling length, so that it is possible to manage the contents of the operator's operations. It will be possible.

〔Example〕

Now, before explaining the preferred embodiment of the present invention, a typical drilling work cycle by a drilling device will be schematically shown with respect to the contents and symbols of the work rate that this invention aims at. The first
This will be explained with reference to the figures.

T _t ...Total working time from starting the engine and starting work until stopping the engine and completing a series of tasks T...Time from when actually starting to drill each hole to finishing it In Figure 1, T = T ₁ + T ₂ +... ₊ To Pure drilling time, expressed as the cumulative total of the time that the drilling machine drills, in Figure 1: t = t ₁ + t ₂ +...+t _i +...+t _o l... as the cumulative total of the drilling depth for each hole. With the total drilling length shown, in Figure 1: l=l ₁ +l ₂ +...+l _o Q ₁ ...Fuel consumption Q ₂ for the total working time T _t ...Fuel consumption Q ₃ for the actual drilling time T ...Fuel consumption rate with respect to pure hole drilling time t In this invention, the working rate to be determined is: Q ₁ /T _t , Q ₂ /T, Q ₃ /t...Fuel consumption rate with respect to working time Q ₁ /l, Q ₂ /l, Q ₃ /l... Fuel consumption against drilling length l/T _t , l/T, l/t... Drilling efficiency.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a cross-sectional view for explaining the state of drilling work using the bench cut method, FIG. 3 is a block diagram of a control system to which the work rate display device for drilling equipment of the present invention is applied, and FIG. FIG. 5, which is an explanatory diagram of the drilling operation, is an explanatory diagram showing the relationship between the drilling operation time and the drilling depth.

In FIG. 2, 5 is a bench with a height of H, and a self-propelled drilling device 1 such as a crawler drill or a rotary drill is installed on the bench 5. In the figure, for example, the drilling device 1 is
i-th drilling position located at the line of least resistance
Di (where i is an integer from 1 to n, n
shows a state in which holes are drilled by the drilling machine 2 (total number of holes). Here α is the drilling angle and the drilling depth is Ha. Also, 3 is
A drill rod attached to the drilling machine 2,
A drill bit 4 is attached to its tip. Then, along the rock wall 6, the drill bit 4 is pressed against the rock on the bench 5 while being struck, rotated, or rotated to drill a hole.

Here, in the drilling machine 2, 7 is a rod sleeve that fixes the drill rod 3 to the drilling machine main body 2a, 8 is a guide shell that guides the drilling machine 2, and 9 is a rod clamp that clamps the drill rod. . The rod clamp 9 is equipped with a rod clamp detector 10 (not shown).
(see Figure 3), and the drill rod 3
Detects the clamp state of. Further, the guide shell 8 is provided with a feeding device (not shown) for moving the drilling machine body 2a, and further engages with the feed chain to move the drilling machine body 2a on the guide shell 8. movement amount detector 11 that detects the movement amount of
(not shown, see FIG. 3) is provided. The movement amount detector 11 is composed of, for example, a sprocket wheel that engages with the feed chain and a rotary encoder coupled to its shaft. Further, the rod clamp detector 10 is constituted by, for example, a pressure detector that detects the pressure when the drill rod 3 is clamped.

Now, the drilling 12 at the drilling position Di is performed by connecting multiple drill rods 3, and the drilling 12 is performed by connecting multiple drill rods 3.
The depth Ha of 2 is determined by the relationship Ha≧H/sinα (1) Ha=N·Lo+L ₁ +A.

Here, α is the inclination angle of the hole to be drilled. Lo is the length of the drill rod 3. L ₁ is the length of the drill bit 4. A is the remaining hole length for drilling the hole to the depth Ha.

Certain drilling patterns D ₁ , D ₂ , D ₃ ,..., Di,...,
Dn (however, D ₁ , D ₂ , D ₃ , ..., Di, ..., Dn is
The drilling length at each drilling point D ₁ , D ₂ , D ₃ , ..., Di, ..., Dn
(However, when the drilling machine 2 is tilted, the drilling angle α is given as a corrected correct drilling angle) for each drilling position.

Next, a display control system to which the work rate display device for a drilling device of the present invention is applied will be explained with reference to FIG.

The work rate calculation and display system 20 includes a drilling start signal generator 21 that is provided on the operation panel and generates a drilling start signal, a movement amount detector 11 and a rod clamp detector 1 that are provided on the guide shell 8.
0, keyboard 22, interface circuit 23,
Arithmetic processing unit 24, memory 25, display device 26,
The control device 27 and the upper limit value detector 28 which are provided in the guide shell 8 and detect the upper limit value of the movement amount of the drilling machine body 2a of the drilling machine 2, and the lower limit value detector 29 which detects the lower limit value thereof. , a fuel meter 30 that measures the fuel consumed in a series of operations, and a clock 31 that measures the time required for each operation. Note that the distance between the lower limit value and the upper limit value is set to a range to which one drill rod can be connected or more.

Next, with reference to FIGS. 4 and 5, the configuration and drilling operation for the two holes will be described based on FIG. 3.

When a predetermined function key on the keyboard 22 is pressed and the height H of the bench 5 is input from the keyboard 22, the arithmetic processing unit 24 receives the input via the interface circuit 23, and the arithmetic processing unit 24 stores the height H in the memory 25.
Data regarding the height H is stored in a predetermined area of .

Next, the drilling operation is started, and the drilling machine 2 is placed at a predetermined drilling position Di according to the order of drilling patterns D ₁ , D ₂ , D ₃ , ..., Di, ...Dn from the memory 25. Assume that the position has been determined.

To drill a hole at this drilling position Di, first, the guide shell 8 is placed on the bench 5 with respect to the drilling machine 2 in the state shown in FIG. 4 a, and the guide shell 8 is brought into the state shown in FIG. Note that H _A in a of FIG. 4 indicates the distance from the tip of the drill bit 4 to the bench 5.

Next, when the drill rod 3 is set at the drilling position and the switch of the drilling start signal generator 21 on the operation panel is turned on, the interface circuit 23
The arithmetic processing unit 24 receives this and sends a predetermined signal to the control unit 27. As a result, the drill bit 4 starts drilling a counterbore on the bench 5. At the same time, the arithmetic processing unit 24, in response to the input signal from the drilling start signal generator 21,
The information on the amount of movement sent out from the amount of movement detector 11 provided in the guide shell 8 is received, the information is sampled at a certain period, the drilling depth Ha is calculated based on this information, and the drilling depth Ha is calculated based on this information. The process of storing the hole depth Ha in a predetermined area of the memory 25 is started. Note that when the signal from the movement amount detector 11 is obtained as a pulse signal according to the movement amount and its direction signal, the signal is not sampled and
The drilling depth Ha is simply calculated by sequentially adding and subtracting this pulse signal according to the direction signal.

Furthermore, data is read out from the memory 25 based on the height H of the bench 5 previously entered from the keyboard 22, and based on the set drilling angle α, the set drilling depth is determined based on the above formula (1). Drilling hole length Hs
Calculate. Then, this is stored in a predetermined area of the memory 25. Note that this drilling length Hs may be directly input by the operator from the keyboard 22 as a set value.

Next, the arithmetic processing unit 24 calculates the value of the drilling depth Ha (=indicating the calculated drilling length) calculated by adding and subtracting the sampled movement amount information or the pulse signal, and the calculated set drilling length. Hs and the value Hs are read from the memory 25 and compared, it is determined whether the current drilling depth Ha is greater than or equal to the set depth Hs, and this The numerical value of the hole depth Ha is sent to the display device 26, and the current hole depth Ha is displayed as the hole length. Note that, as a result of the determination, when it is determined that the current drilling depth Ha is greater than or equal to the set drilling length Hs, the drilling operation is ended.

As the drilling progresses and the drilling machine body 2a reaches the lower limit value as shown in FIG. The data is then sent to the arithmetic processing unit 24. When the processing unit 24 receives this signal, it sends a drilling stop signal to the control unit 27. As a result, the drilling operation is stopped. The depth of the hole to be drilled relative to the bench 5 at this time is H ₁ ,
The distance from bench 5 to rod sleeve 7 is H _B
(This is assumed to be read in the initial state), then
The relationship between the length Lo of the drill rod 3 and the length L ₁ of the drill bit 4 is Lo + L ₁ = H _B + H ₁ , and the drilling length H _D displayed on the display device 26 as the current drilling depth is H _D = H ₁ (=current drilling depth Ha).

If the above relationship is shown in a graph as a relationship with the drilling distance with reference to the drilling machine main body 2a, it will be as shown in the graph of FIG. In addition, in FIG. 5, the vertical axis shows the drilling length based on the drilling machine main body 2a, and the horizontal axis shows the drilling work time T.

Next, lift the drill rod 3 to the position of the rod clamp 9, grip the rod sleeve 7 connecting the drill rod 3 and the drilling machine body 2a with the rod clamp 9, and hold the drill rod 3 completely. , to clamp. This state is shown in FIG. 4d. Here, the distance from the center position of the rod clamp 9 (the connection position with the drill rod 3) to the bench 5 at this time is H _C
shall be.

As a result, a clamp signal is generated from the rod clamp detector 10 and is received by the arithmetic processing unit 24 via the interface circuit 23. When the arithmetic processing unit 24 receives this detection signal, it stops accepting the signal from the movement amount detector 11, finishes sampling or counting pulse signals for the movement amount, and stops the arithmetic processing. Therefore, the drilling machine 2 can freely move up and down on the guide shell 8 regardless of the calculation process of the drilling length. Note that the drilling length _HD displayed at this time is _HD = H ₁ + H _B - H _C.

Next, the drilling machine main body 2a is reversed, the screw connection with the rod sleeve 7 is loosened, and the drilling machine main body 2a is loosened.
A and the drill rod 3 are separated and the drill body 2a is moved to or near the upper limit position. Then, the drill rod storage device (not shown) is operated to insert the second drill rod 3 into the drilling machine main body 2.
a through the rod sleeve 7, and the lower tip of the second drill rod 3 is screwed onto the rod sleeve 7 of the clamped first drill rod 3 to connect them. Note that since the drill rod 3, the drilling machine body 2a, and the drill rods 3 are connected to each other via the rod sleeve 7, a certain amount of gap Hs is created.
It is omitted here.

This process is shown in Figure 4e, where the lower surface of the rod clamp 9 and the drilling machine body 2 are shown.
Let Ho be the distance from a, then Ho>Lo. FIG. 4f shows the state in which the first drill rod 3, the second drill rod 3, and the drilling machine main body 2a are connected.

Next, in the state shown in FIG. 4f, remove the drill rod 3 from the rod clamp 9, and
move downward. In response to this removal of the rod clamp 9, the detection signal of the rod clamp detector 10 stops and is sent to the arithmetic processing unit 24 via the interface circuit 23. It receives the signal from 11 and performs arithmetic processing. The amount of movement at this time is determined by reading the value of the drilling amount of the first drill rod 3 (current drilling depth Ha) from the memory 25, and using this as a reference, the value added to this value is used to drill the hole. Calculated as the length (current drilling depth Ha). Then, the result is stored in a predetermined area of the memory 25, and as described above, the added result is compared with the set drilling length Hs and displayed on the display device 26. process.

FIG. 4g shows a state in which the hole has been drilled in this manner and has been drilled to the lower limit position by the second drill rod 3.

The distance from the bench 5 to the bottom of the drilling hole 12 at this time, that is, the current drilling depth H ₂ is expressed as H ₂ =2Lo+L ₁ -H _B , as shown in the graph of FIG.

In this way, the third additional hole is drilled, and it is determined whether the current hole depth Ha (=the calculated hole length) is equal to the set hole length Hs.
When this length is exceeded, the arithmetic processing unit 24 determines the drilling length, and the arithmetic processing unit 24 generates a drilling end signal to the control device 27 to complete drilling completion processing. This state is shown in the fifth
This is a graph of the figure.

To complete the drilling process, the drilling machine body 2a is returned to the top, and the drill rod storage device is activated to sequentially store the drill rods 3 in the reverse order of the connection operation.

When this storage is completed, the drilling position Di is updated by one, and the drilling position Di is positioned at Di ₊₁ , and the same drilling operation is performed.

By the way, the number of rod clamps performed by the rod clamp detector 10 during the drilling process corresponds to the number of drill rods 3 used. Therefore, by storing the number of times of rod clamping during drilling in the memory 25, the cumulative drilling length can be easily calculated.

The total and each working time required for a series of operations for drilling one hole is determined by the clock 31 (Fig. 3) based on the operation switching commands and start and stop signals issued during the different operations of the drilling operation. The elapsed time is calculated by referring to the occasional time, storing it, and calculating the time difference between the corresponding times.
Similarly, the amount of fuel consumed is determined by reading the cumulative value of the fuel meter 30 (Fig. 3) at each time based on work switching commands and start/stop signals in each work process, and storing this. It is obtained by calculating the difference value between the corresponding integrated value periods.

Note that these detection times and fuel values are stored in the memory 2.
The information is stored in a specific area No. 5 in the form of a storage table.

By the way, in this memory table, data on the optimal value of work rate obtained from similar past tasks is inputted from the keyboard 22 and stored, and this is always displayed on the display device 26 while each task is being performed. be. Here, the display device 26 uses a CRT display capable of graphic processing, but is not limited to this.

In the actual drilling operation, as shown in Fig. 1, the series of drilling operations for drilling one hole explained in relation to Fig. 5 will be repeated several times. Even in such cases, the working time, fuel consumption and drilling length are calculated as a cumulative total for each case. The data thus obtained is processed by the arithmetic processing unit 24 in order to determine the work rate.

For example, the total working time - fuel consumption rate Q ₁ /T _t is:
By referring to the memory table and referring to each time of the clock 31 based on the engine start and stop signals, and calculating the difference between them, the total working time _Tt is obtained as the elapsed time.
The calculation processing unit 2 calculates the fuel consumption amount _Q1 from the accumulated fuel consumption Q1.
4.

The actual drilling time-fuel consumption rate (Q ₂ /T) is determined in relation to the movement of the crawler, the positioning of the boom and guide shell, the operation of the drilling machine and the delivery of the rod during the operation, and is T _{1 and} T are calculated from the difference values between the time when the guide shell 8 is placed on the bench 5 and the drilling start switch is turned on until the rod is set to its original initial state. ₂ ... is obtained from the corresponding fuel consumption amount Q ₂ calculated accordingly.

The pure drilling time-fuel consumption rate (Q ₃ /t) is determined by clocking each time from the operating state and position of the drifter during work, the operation of the feed motor, and the rod replenishment operation detection signal (signal from the clamp detector 10). Read from, store in memory table,
From this value, t ₁ , t ₂ , . . . are calculated, and the fuel consumption amount Q ₃ is calculated as the difference value from the corresponding fuel consumption value stored correspondingly.

In addition, drilling length - fuel consumption (Q ₁ /l, Q ₂ /
l, Q ₃ /l) and drilling efficiency (l/T _t , l/T,
l/t) is the drilling depth Ha obtained from the number of rods to be fed and the position of the drilling machine on the guide shell, and the drilling depths l ₁ , l ₂ ,... corresponding to each drilling position. memorize it as l=l ₁
It is calculated as +l ₂ +l ₃ ..., and this l and each of the above-mentioned working time (T _t , T, t) and fuel consumption (Q ₁ , Q ₂ ,
It is obtained from the calculated value of Q ₃ ).

These calculation results are stored in the memory 25, and at the same time are digitally displayed on the display device 26 together with the optimum value indicating the best work rate obtained so far, and if the highest value is adopted as the optimum value. if,
If the work rate obtained for that drilling operation is better than the previous optimum value, it is updated at the end so that it can be used as the next optimum value.

In addition, the display device 26 sequentially displays past data regarding the work rate for each task in the form of a graph as shown in FIG. It is processed as shown in . Note that these data can be printed out on a printer to make a hard copy, and this is preferably used as the next management data.

By the way, in the embodiment, the fuel consumption value with respect to time and the fuel consumption value with respect to drilling length are shown as the work rate, but in addition to these, the average value of each work may be displayed.

〔Effect of the invention〕

Regarding drilling work, elapsed time detection means for measuring working time or drilling length detection means for detecting drilling length, fuel consumption amount detection means for measuring consumed fuel, elapsed time detection means, drilling hole. an arithmetic processing means for calculating and storing a work rate regarding the working time or the fuel consumption for the drilling length based on each data detected by the length detecting means and the fuel consumption amount detecting means; and a display means for displaying the work rate,
The results of each calculation by the calculation processing means are displayed together with the data obtained in the past or the optimum value indicating the work rate, and if the result of each case is better than the optimum value, the result is Since it is updated as the optimal value, there is no need for special planning or manpower.
Since it is possible to immediately know the drilling efficiency and fuel consumption from moment to moment or cumulatively per working hour, it is useful for rational operation of drilling work using drilling equipment and for predicting abnormalities in hydraulic crawler drills. The result is that workers are always interested in improving the efficiency of their work.

[Brief explanation of drawings]

Fig. 1 is a diagram for explaining the contents and symbols of the work rate targeted in the work rate display device of the present invention, and Fig. 2 is a cross-sectional view for explaining the drilling work state by the bench cut method. Fig. 3 is a block diagram of a control system to which the work rate display device for a drilling device of the present invention is applied, Fig. 4 is an explanatory diagram of the drilling operation, and Fig. 5 shows the working time and drilling depth. FIG. 1 is a drilling device, 2 is a drilling machine, 3 is a drill rod, 4 is a drill bit, 5 is a bench, 6 is a rock wall, 7 is a rod sleeve, 8 is a guide shell, 9
1 is a rod clamp, 10 is a rod clamp detector, 11 is a movement amount detector, 12 is a drilling hole, 20 is a work rate calculation and display system, 21 is a drilling start signal generator, 22 is a keyboard, 23 is an interface circuit, 24 is an arithmetic processing unit, 25 is a memory,
26 is a display device, 27 is a control device, 28 is an upper limit value detector, 29 is a lower limit value detector, 30 is a fuel meter, and 31 is a clock.

Claims (1)

[Scope of Claims] 1 Regarding drilling work, elapsed time detection means for measuring working time or drilling length detection means for detecting drilling length, fuel consumption amount detection means for measuring consumed fuel, and arithmetic processing means for calculating and storing a working rate for fuel consumption with respect to working time or drilling length based on each data detected by the elapsed time detecting means, the drilling length detecting means and the fuel consumption detecting means; and a display means for displaying the work rate determined by the arithmetic processing means, and each calculation result by the arithmetic processing means is displayed together with the data obtained in the past or the optimum value indicating the work rate. A work rate display device for a drilling device, characterized in that: 2. Claim 1, characterized in that if the result of each drilling operation is a value better than the optimum value, the result is updated as the next optimum value.
A work rate display device for the drilling device described in Section 1.