JPH0454609A - Operating device and controller for construction machinery - Google Patents

Abstract

PURPOSE:To select the kind of a work in a state that an operating lever remains gripped by selecting and instructing the control conforming to the work from in various controls of a construction machinery. CONSTITUTION:In a grip part 5a of an operating lever 5, a push-button switch 6 is provided in a state that it can be depressed, while gripping the operating level 5. When the push-button switch 6 is depressed again, a work mode 'fine operation' stored in an address 3 corresponding to the contents of the present (n) is read out of a memory, and a control signal for executing various controls corresponding thereto is outputted to an engine control controller 7 and a pump control controller 8. As a result, in a state that the operating lever 5 remains gripped, a desired work is selected and instructed from in plural work kinds, and in accordance with this instructed work, the control conforming to the work concerned is selected and instructed from in various controls of a construction machinery.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an operating device and a control device applied to a construction machine such as a power shovel.

[Conventional technology]

The operation panel of conventional construction machinery is equipped with multiple switches for selecting and instructing various controls executed by the construction machinery, and the operator can control each type of work by operating these multiple switches. An appropriate control is selected and instructed, and this instructed control is executed.

However, operating multiple switches to select and instruct controls suitable for the type of work imposes a heavy burden on the operator. In addition, the user often makes a mistake in selecting the control, and the risk of making a mistake increases as the number of types of control increases.

Therefore, the present applicant has proposed that by simply selecting a desired task from a plurality of tasks using a task selection switch provided on the operation panel, various controls suitable for the selected task can be uniquely selected and instructed. In this way, we have proposed and implemented an operation panel that reduces the burden of operating a large number of switches and prevents erroneous instructions on control contents (Japanese Patent Application No. 152678/1982, Patent Application No. 63190076). The driver's seat is located away from the above operation panel,
An operating lever is provided to drive the work equipment. When this control lever is operated by an operator, the moving speed of an actuator such as a hydraulic cylinder that drives a working machine such as an arm is manually controlled according to the amount of operation, and excavation work or the like is performed.

[Invention or problem to be solved]

By the way, as an operator, you may want to shift the type of work from, for example, heavy excavation mode to straightening mode during work, that is, while gripping the operating lever. In this case,
In order to operate the work selection switch on the operation panel that is separated from the operation lever, it is necessary to temporarily remove your hand from the operation lever. In this case, the work is interrupted, even if only temporarily, and work efficiency is impaired, and the operation is cumbersome. Also,
The problem is that it takes time to change tasks. In addition, it is common for experienced operators to continue working without using the work selection switch because they dislike the hassle of having to take their hands off to operate the operation. This meant that a situation would arise in which the company's performance would not be fully demonstrated.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned inconvenience by providing a device that allows the user to select the type of work while holding the operating lever.

[Means to solve the problem]

Therefore, in the present invention, a work selection switch is provided for selecting and instructing a desired work from among a plurality of basic work types to be performed by the construction machine, and the construction machine performs various types of work according to the work selected by the work selection switch. In the operation device for construction machinery, which includes an operation panel for selecting and instructing a control suitable for the work from among the controls, the work selection switch is disposed on an operation lever that drives a work implement of the construction machine. .

[Effect]

In other words, according to this configuration, a desired work is selected and instructed from among a plurality of work types while holding the operating lever, and a control suitable for the work is selected from various controls of the construction machine according to the instructed work. The control to be used is selected and instructed.

〔Example〕

EMBODIMENT OF THE INVENTION Hereinafter, embodiments of a construction machine operating device and a control device according to the present invention will be described with reference to the drawings. In addition, in the embodiment, a power shovel is assumed as the construction machine.

FIG. 1 conceptually shows the configuration of an embodiment device. The operation panel OP shown in the figure has a flexible sheet 1 stretched over the panel surface. This sheet 1 has switch display marks 2-1 to 2-5 and lighting display marks 3-1 to 3 at appropriate locations.
-5 is arranged.

Further, a liquid crystal display 4 is disposed above the panel. A push button switch (not shown) is provided on the back side of the seat 1 at each of the switch marks 2-1 to 2-5. Each of these push button switches is
It is of a type that is turned on only when pressed, and is turned on by pressing the respective switch marks 2-1 to 2-5 and bending the sheet 1. The following table is switch mark 2-1
The operation items of ~2-5 and the contents instructed by the operations are shown below. That is, when the switch marks 2-1 to 2-5 are operated and the corresponding push button switches are turned on, the lighting marks 3-1 to 3-3 are turned on in response to the on signal.
-5 are lit, the instruction contents shown in the following table are sequentially selected and instructed, and a control signal is output to the engine control controller 7 and the pump control controller 8 to carry out the specified control.

Work modes "heavy excavation", "excavation", "straightening" shown in the table above
and "fine operation" indicate the basic work types of power shovels, among which "straightening" means earth leveling work, and "fine operation" means fine operation of the work equipment.

Moreover, power modes rHJ, rsJ, and rLJ are control modes that instruct the output of the engine and the output ratio of the hydraulic pump 12, 13 when the output of the engine 9 is set to 100. Note that the output ratio of the pump is, for example, H-100%, 5-50%, and L-60%.

Auto deceleration means a control mode in which, when turned on, the engine speed is reduced to a preset low speed when the operator returns the work implement control lever 5 to the neutral position.

Running speed means the running speed of the power shovel, rLOJ means low speed, and rHIJ means high speed.

Furthermore, the memory mohed means a mode in which up to three desired tasks are selected and stored from among the basic task types of the task mode, as will be described later.

As described above, when each of the switch marks 2-1 to 2-5 is pressed and the instruction contents shown in (A) to (E) are selected, the selected contents are reflected in the lighting marks 3-1 to 3-3, respectively. 5
is instructed to turn on. In Figure 1, switch mark 2-1~
2-5 (excluding 2-2) is pressed appropriately, and the lighting mark 3
-1 to 3-5 (excluding 32) are filled in black as shown in the figure below.
The figure shows that SJ is set to "on" as auto deceleration, and rLOJ is selected as running speed.

The operating lever 5 is manually operated by the operator,
Depending on the amount of operation (lever stroke amount),
This is a lever that controls the turning speed of the revolving body and the moving speed of the arm, packet, boom, etc. A push button switch 6 is disposed on the grip portion 5a of the operating lever 5 in such a manner that it can be pushed while gripping the operating lever 5.

When the push button switch 6 is pressed, a switch-on signal is applied to the operation panel OP via the signal line. The pump controller 8 controls the discharge flow rate of the hydraulic pump 12.13 by driving the servo actuator 10.11 for driving the swash plate based on the control signal applied from the operation panel OP. In other words, the hydraulic pumps 12 and 13 are each driven by the engine 9, and the displacement per revolution is caused by changing the tilt angles of the swash plates 12a and 13a by the swash plate drive servo actuator 10.11. The flow rate is changed respectively. The pressure oil discharged from the hydraulic pumps 12, 13 is supplied via the operating valve 10 to the hydraulic cylinder 15 that drives the working machine. On the other hand, the engine controller 7 controls the output torque of the engine 9 via a governor (not shown) based on a control signal applied from the operation panel OP.

Now, on the operation panel OP, switch mark 2-3.2
-4. When 2-5 is pressed individually and various controls, that is, war mode, auto deceleration, and travel speed are selected individually (for example, as shown in black in the figure), the contents of these selection instructions A control signal corresponding to
), the engine 9 and hydraulic cylinder 15 are driven.

On the other hand, if the switch mark 21 is pressed appropriately on the operation panel OP to instruct the selection of the work mode (
For example, as shown in black in the figure), the engine controller 7 receives control signals for executing various controls (power mode "S", odometer control "ON") that are compatible with this selection instruction content (excavation mode). and is output to the pump controller 8, and the engine 9 and hydraulic cylinder 15 are driven according to the above instructions (excavation mode - power mode "S", auto deceleration "ON"). In addition,
Matters regarding the implementation of various controls suitable for the selected type of work are disclosed in the earlier application (Japanese Patent Application No. 15267-1983).
No. 8, Japanese Patent Application No. 63-190076), and is not directly related to the purpose of the present application, so further detailed explanation will be avoided.

As described above, the selection instruction of the work mode is performed by pressing the switch mark 2-1 on the operation panel OP. However, when an operator wants to perform a deep excavation work on a wall, for example, it is necessary to change the instruction contents of the work mode while holding the operating lever 5 during the work. At this time, if the user takes his hand off the operating lever 5 and operates the switch mark 2-1 on the operating panel OP, the work will be interrupted and the operation will be troublesome.

Therefore, in this embodiment, the type of work mode can be changed using a push button switch 6 provided on the operating lever 5.

That is, before starting work, a CPU (not shown) in the operation panel OP performs preprocessing according to the procedure shown in FIG. 2. Second
As shown in the figure and FIG. 3, first, n is initialized to 1 (step 101), and the operator presses the work mode switch mark 21 as appropriate to select and instruct the work mode. For example, as shown in FIG. 3(a), it is assumed that the work mode "heavy excavation" is selected and instructed by the switch mark 2-1 (step 102). Next, press the memory mode switch mark 2-2 (step 10).
3). In response to this, 1 is initialized in step 101 as shown in black in FIG. 3(a).
Correspondingly, "1" of the lighting mark 3-2 lights up, and the work mode "heavy excavation" selected and instructed in step 102 at address n-1 of the memory (not shown) in the operation panel OP is set.
is memorized and stored (step 104). Then, n is incremented by +1 (step 105), and it is determined whether n is greater than 3 (step 106).
), here it is determined that n is 3 or less, so the procedure moves to step 102 and similarly selects and instructs the work mode. For example, it is assumed that the work mode "straightening" is selected and instructed this time as shown in FIG. 3(b). Then, when the memory moto switch mark 2-2 is pressed (step 1
03), as shown in black in FIG. 3(b), "2" on the lighting marker 3-2 corresponding to the current content (2) of n lights up, and at the same time the address n-2 of the memory is The work mode "straightening" selected and instructed in step 102 is memorized;
is stored (step 104). Thereafter, n is similarly incremented to 3, and the procedure continues from steps 106 to 102.
, and similar processing is performed. That is, as shown in FIG. 3(C), after being instructed to select "fine operation" as the work mode, by pressing the memory mode switch mark 2-2, the work mode "fine operation" is set to memory address n-3. ” is memorized and stored (steps 102-1
04). Here, when n is incremented (step 105), it becomes n-4, so the judgment result in step 106 is YES, and the procedure moves to step 107, where n-4.
3 as the new content of n, that is, 1 as the content of n,
The procedure moves to step 102. As a result, if the processing from step 102 onwards is performed again, n-1 to 3 of the memory will be
The contents can be corrected as appropriate. The above is the content of the processing performed before the start of work.

14 While the excavator is working, the process shown in FIG. 4 is performed. That is, as shown in the figure, n is initialized to 1 (step 201), and when the push button switch 6 of the operating lever 5 is pressed for the first time, a switch-on signal is applied to the operating panel OP.

As a result, the 1 initialized in step 201
"1" of the lighting mark 3-2 corresponding to "1" lights up, and the work mode "heavy excavation" stored in address 1 is activated.
is read from memory (step 203). below,
n is incremented by +1 (step 204), n
is greater than 3 (step 2).
05).

Here, the judgment result is NO, so the procedure is step 20
It will be moved to 2. On the other hand, when the work mode "heavy excavation" is read out from the memory by turning on the push button switch 6, control signals for performing various controls corresponding to this are output to the engine control controller 7 and the pump control controller 8, and the engine 7 And the hydraulic cylinder 15 is drive-controlled. The control signal corresponding to such "heavy excavation" is output until the push button switch 6 is pressed next.

Here, when the push button switch 6 is pressed again (step 2
02), a switch-on signal is applied to the operating panel OP.

As a result, "2" of the lighting mark 3-2 corresponding to the current content (2) of n lights up, and the work mode "Alignment" stored at address 2 is read from the memory (step 203). . Thereafter, n is incremented by +1 (step 204), and it is determined whether n is greater than 3 (step 205). Since the determination result here is also No, the procedure moves to step 202. Here, too, when the work mode "alignment" is read out from the memory by turning on the pushbutton switch 6, control signals for various controls corresponding to this are output to the engine control controller 7 and pump control controller 8, and the engine 7 and hydraulic pressure are The cylinder 15 is driven and controlled. The control signal corresponding to "correction" is output until the push button switch 6 is pressed next. Thereafter, when the push button switch 6 is pressed again in the same way, "3" of the lighting mark 3-2 corresponding to the current content (3) of n lights up, and the address 3
The work mode "fine operation" stored in is read out from the memory, and control signals for various controls corresponding to this are output to the engine controller 7 and the pump controller 8 (steps 202 to 203). .

When n is incremented by +1 (step 204)
, n is 4, so the judgment result in step 205 is YES.
Then, the process moves to the next step 206. In step 206, n-3 is newly set as the content of n, that is, n is set to 1.
Then, the procedure returns to step 202. Similarly, each time the push button switch 6 is pressed, the work mode stored at the address with the same number as the current content of n is selected and instructed. In other words, each time the switch 6 is pressed, the types of work modes input and stored in the preprocessing are input and stored in the order of "heavy excavation" = "straightening" →
Selection instructions are given in a cyclical manner, such as "fine operation" → "heavy excavation" →... Further, after n is initialized to 1 in step 201 of FIG.
If the push button switch 6 is not pressed, the operation panel is OP.
The type of work mode currently selected above is executed.

In addition, when the switch marks 2-3 to 2-5 for individually setting various controls are operated, the operation panel OP changes these switch marks 2-3 to 2-5 regardless of the operation of the work mode switch mark 2-1. It has a function of executing the contents selected by operations 3 to 2-5. Therefore, during preprocessing, the work mode switch mark 2-1
In addition to memorizing the selection contents of the work mode by operating only the switch marks 2-3 to 2-5 for various controls.
After operating the memory mode switch mark 2-2
It is also possible to store arbitrary combinations of various controls by operating the .

Further, the types of various controls selected and instructed by the operation panel are not limited to those shown in FIG. 1, but are arbitrary. For example, as shown in the operation panel OP' in FIG. 4, it is also possible to add various controls such as priority mode, soft mode, straightening direction, auto drive, vibration mode, and vibration axis.

In the embodiment, the stored work mode types are sequentially selected and instructed according to the order in which the pushbutton switches 6 of the operating lever 5 are pressed.
A switch with the same function as switch mark 2-1 is installed,
It may be possible to arbitrarily select the type of work mode during work without storing the desired order and types (three types) of the desired work moto types in advance.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to select the type of work while holding the operating lever, so it is possible to temporarily release the operating lever in order to operate the work selection switch on the operating panel during the operation. This eliminates the need for this, greatly improving operability and work efficiency. Furthermore, since the type of work can be switched in a short time, it is possible to easily use a plurality of types of work in a series of works.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the configuration of an embodiment of the operating device and control device for construction machinery according to the present invention, and FIG. 2 is a flowchart showing the processing procedure executed by the CPU of the operating panel shown in FIG. A flowchart showing the procedure of pre-processing performed before starting.
A diagram showing changes in the lighting mode of the lighting indicator mark on the operation panel shown in 11U, and FIG. 4 shows the CPU of the operation panel shown in FIG. 1.
FIG. 5 is a front view showing another example of the operation panel shown in FIG. 1. FIG. OP...Operation panel, 2-1 to 2-5...Switch display mark, 5...Operation lever 6...Push button switch,
7... Engine control controller, 8... Pump control controller. Figure 2 Figure 5

Claims (4)

[Claims] (1) A work selection switch is provided to select and instruct a desired work from among the plurality of basic work types performed by the construction machine,
An operation device for a construction machine comprising an operation panel that selects and instructs a control suitable for the work from among various controls of the construction machine according to the work selected by the work selection switch, An operating device for construction machinery, characterized in that the work selection switch is disposed on a driving operating lever. (2) A work selection switch is provided for selecting and instructing a desired work from among the plurality of basic work types performed by the construction machine;
an operation panel for selecting and instructing a control suitable for the operation from among various controls of the construction machine according to the operation selected by the operation selection switch; and means for executing the control selected and instructed by the operation panel. 1. A control device for a construction machine comprising: the work selection switch disposed on an operating lever for driving a working machine of the construction machine. (3) A work selection switch is provided for selecting and instructing a desired work from among the plurality of basic work types performed by the construction machine;
A construction machine operating device comprising an operation panel that selects and instructs a control suitable for the work from among various controls of the construction machine according to the work selected by the work selection switch, wherein the plurality of basic work types The operation panel is provided with an input means for inputting a desired work from among the input means, and a storage means for storing the work input by the input means, and the operation lever for driving the working machine of the construction machine is provided with a memorized work. A selection switch is provided, and control selection means is further provided for selecting and instructing a control suitable for the work stored in the storage means from among various controls of the construction machine when the storage work selection switch is turned on. An operating device for construction machinery characterized by: (4) The input means inputs a plurality of tasks, and the pre-storage means stores the plurality of tasks inputted together with the input order, and the control selection means is configured such that the storage task selection switch is turned on. The operation of the construction machine according to claim (3), wherein the operations stored in the storage means are retrieved in the input order for each operation, and a control suitable for the retrieved operation is selected from among various controls of the construction machine. Device.