JP3300507B2 - Display for work of construction machinery - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display for work of a construction machine such as a crane and an excavator.

[0002]

2. Description of the Related Art In recent years, many levers and switches have been installed in an operator's cab as construction machines have become multifunctional and sophisticated. On the other hand, the monitors provided in the operator's cab are limited to those for starting inspections to check for abnormalities in the engine oil lubrication system and charging system, and those for construction management to display the limit load and the like. Had been.

[0003]

When the number of levers and switches in the operator's cab increases, an operator unskilled in operation cannot instantaneously select a lever or switch suitable for a desired operation, and operates from an erroneous selection of a lever or switch. The frequency of making mistakes increases. In particular, confusion is likely to occur during a combined operation of simultaneously operating a plurality of work machines. In addition, since it is difficult to visually recognize which work machine is operating during nighttime work, it is easy to feel psychologically uneasy whether or not the work machine is operating correctly, and there is a possibility that an operation error may not be noticed. When the type or manufacturer of the construction machine changes, the arrangement of the levers and switches differs, so that an operation error is more likely to occur immediately after changing the construction machine. Although the instruction manual attached to the construction machine describes the functions of the levers and switches in detail, it is difficult to understand all the many levers and switches by just reading the instruction manual.
Further, the conventional monitor does not function effectively for selecting a lever or a switch or for confirming the operation of a working machine.

It is an object of the present invention to provide a construction machine operation display monitor which is useful for selecting operation levers and switches of a work machine and confirming operation of the work machine.

[0005]

A description will be given with reference to the drawings showing an embodiment. (1) The invention according to claim 1 is a work display monitor for a construction machine having a plurality of working machines 1, 2, 4, and 6, as shown in FIGS. , 4, 6 respectively, and first marks 21A, 31A provided in the cab of the construction machine, simulating a side view of the construction machine, and a boom 3 provided on the construction machine. Are displayed, and third marks 21C and 31C, which simulate a pair of left and right crawlers of the lower traveling body 1 of the construction machine, are displayed, respectively, and these marks 21A, 31A, 21B, 31B, 21C, and 31C, arrow-shaped light-emitting portions 22A to 22J, 32 that light up in accordance with the operation and the operation direction of work implements 1, 2, 4, and 6
A to 32L are provided, and the second marks 21B,
At the position corresponding to the base end of the boom of 31B, the upper swing body 2
And a display member 20 provided with rotation pointers 23 and 33 for rotating in response to the turning operation of the upper member 2 and displaying the turning angle of the upper turning body 2, and the light emitting portions 22A to 22J and 32A of the display member 20 are provided.
The above-mentioned object is achieved by lighting up to 32L according to the detection result of the detection means. (2) The invention of claim 2 is a work display monitor for a pile driving machine having a plurality of working machines 1, 2, 4, and 6, as shown in FIGS. Reference numerals 2, 4, 6 denote a plurality of winch drums, an upper revolving superstructure 2, and a lower traveling superstructure 1. Detecting means for detecting whether each of the working machines 1, 2, 4, 6 is operating, respectively, Marks 41A to 41A provided in the operator's cab and indicating a plurality of winch drums, respectively.
E, 51A to 51D, marks 41F and 51E indicating the upper revolving unit 2 in plan view, and marks 41G and 51F indicating a pair of right and left crawlers of the lower traveling unit 1 are displayed, and these marks 41A to 41G and 51A are displayed. To 51F, and arrow-shaped light-emitting portions 42A to 42P, 52A to be turned on corresponding to the operation of the working machines 1, 2, 4, and 6 and the operation direction.
52N are provided respectively, and display members provided with marks 41F and 51E indicating the upper revolving unit 2 are provided with rotation hands 43 for rotating in response to the revolving operation of the upper revolving unit 2 and displaying the revolving angle of the upper revolving unit 2. 20 is achieved, and the light emitting units 42A to 42P and 52A to 52N of the display member 20 are turned on in accordance with the detection result of the detection means to achieve the above-described object. (3) The invention according to claim 3 is the construction display monitor for construction machines according to claim 2, wherein the marks 41A to 41E and 51A to 51D indicating a plurality of winch drums are provided when the pile driving machine is viewed from above. Is displayed according to the arrangement when
Light emitting units 42A to 42J, 52A to 52H provided in association with the marks 41A to 41E and 51A to 51D.
Are formed in upward and downward arrow shapes, respectively, corresponding to the hoisting and unwinding operations. (4) The invention according to claim 4 is a construction machine display monitor according to claim 2 or 3, wherein a mark 51F for displaying a pair of right and left crawlers of the lower traveling body 1 as shown in FIG. Is composed of two types of marks when the upper swing body 2 faces the front of the construction machine and when it faces the side, and the display positions of these two types of marks 51F can be switched. .

[0006]

(1) According to the first aspect of the present invention, a side view, a plan view, and marks 21A, 31A, 21B, 31B, 2B of a pair of left and right crawlers are provided on the display member 20 of the cab.
1C and 31C are displayed respectively. When the working machines 1, 2, 4, 6 operate in response to the operation of a specific lever or switch, the marks 21A, 31A, 21B, 31B, 21C, 3
Arrow-shaped light emitting units 42A to 42P and 52A to 52N that are provided in association with 1C and correspond to each operation are turned on. (2) According to the second aspect of the present invention, a plurality of winch drums mounted on a pile driver, an upper revolving unit, and marks 41A to 41G indicating a pair of right and left crawlers are provided on the display member 20 of the cab.
51A to 51F are displayed respectively. When the work implements 1, 2, 4, and 6 are operated in response to the operation of a specific lever or switch, they are provided in association with the marks 41A to 41G and 51A to 51F, and have an arrow-shaped light emitting unit 42 corresponding to each operation.
A to 42P and 52A to 52N light up. (3) According to the third aspect of the present invention, the marks 41A to 41E and 51A to 51D indicating the plurality of winch drums are displayed in accordance with the arrangement of the pile driving machine when viewed from above.
When 2, 4, and 6 operate, the upward arrow and the downward arrow 42A-42J and 52A-52H light. (4) In the invention of claim 4, the display position of the mark 51F is switched between when the upper swing body 2 faces the front of the construction machine and when the upper swing body 2 faces the side.

In the means and means for solving the above problems which explain the constitution of the present invention, the drawings of the embodiments are used to make the present invention easy to understand. However, the present invention is not limited to this.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 3 schematically shows a crawler crane in which the monitor of this embodiment is incorporated. 1 is a lower traveling body that can travel by a pair of left and right crawlers 1a (only one side is shown in the figure), and 2 is an upper part that can be turned horizontally. The revolving superstructure 3 is a boom, and 4 is a first winch. When the rope 4a of the first winch 4 is extended, the hook 5 descends,
When a is wound, the hook 5 is raised. Reference numeral 6 denotes a second winch, and when the rope 6a is paid out, the boom 3 is turned on.
Falls, and when the rope 6a is wound up, the boom 3 rises. Hereinafter, the operation in the direction of winding the winch rope is referred to as a hoisting operation, and the operation in the direction of unwinding the rope is referred to as a lowering operation.

The crawler 1a, the upper swing body 2, the first winch 4 and the second winch 6 are all driven by a hydraulic motor. The first winch 4 of these drive circuits
1 is shown in FIG. In FIG. 1, reference numeral 10 denotes a hydraulic pump driven by an engine (not shown), and discharge oil from a pair of pilot operation valves 12
a, 12b. When the operation lever 11 is operated toward the hook rising side (arrow side in the drawing), a pilot pressure corresponding to the operation amount is output from the pilot valve 12a to the pilot line 13a, and the control valve 14 is switched to the A position. This allows
The discharge oil of the hydraulic pump 15 is guided to a hydraulic motor 16 and the drum 4 of the first winch 4 connected to the hydraulic motor 16.
D performs a winding operation. When the operation lever 11 is operated to the hook lowering side (the side opposite to the arrow in the figure), the pilot pressure is output to the pilot line 13b, and the control valve 14 is switched to the B position. As a result, the oil discharged from the hydraulic pump 15 is guided to the hydraulic motor 16 in a direction opposite to that during the hoisting operation, and the drum 4D performs the lowering operation. Crawler 1 not shown
a, the driving circuits for the upper swing body 2 and the second winch 6 are the same as above. That is, a control valve is interposed between the hydraulic pump 15 and the hydraulic motor that drives the crawler 1a, the upper swing body 2, and the second winch 6, and these control valves are guided by the operation of the operation lever. The switching is controlled by the pressure to start a desired operation.

The operation of the first winch 4 is performed by the pressure switches 17a, 17 connected to the pilot lines 13a, 13b.
b. The pressure switch 17a is turned on when the pilot pressure rises in the pilot line 13a by the operation of the operation lever 11 to the hook rising side, and the pressure switch 17b is turned on when the pilot pressure rises to the pilot line 13b by the operation to the hook down side by the operation to the hook descending side. Turns on. The ON signals of the pressure switches 17a and 17b are input to the display 20. The wiring on the power supply side of the pressure switches 17a and 17b is not shown. The operations of the crawler 1a, the upper swing body 2, and the second winch 6 are also detected by the same pressure switch, and the detection result is input to the display 20.

The display 20 is installed at a position where it can be seen by an operator sitting in the driver's seat, and a display panel 21 is mounted on the surface thereof. As shown in FIG. 2, the display panel 21 has a first mark 21A that simulates a side view of the crawler crane, a second mark 21B that simulates a plan view of the boom 3, and a pair of left and right of the lower traveling body 1. The third mark 21C imitating the crawler is displayed. Mark 21A-2
Arrow-shaped light emitting portions 22A to 22J are provided near 1C. The light emitting units 22A to 22J are turned on as described below according to the detection results of the pressure switches that detect the operations of the crawler 1a, the upper swing body 2, the first winch 4, and the second winch 6.

The upward arrow-shaped light emitting portion 22A provided at the suspended load position of the first mark 21A is turned on by turning on the pressure switch 17a of FIG. The light emitting section 22B is turned on when the pressure switch 17b for detecting the lowering operation of the first winch 4 is turned on. Thereby, the operation and the operation direction of the hook 5 with respect to the operation of the operation lever for raising and lowering the hook can be confirmed on the display panel 21. Also, the first mark 2
The light emitting portion 22C provided with the boom rising direction facing the boom portion of 1A is turned on when the winding operation of the second winch 6 is detected, and the light emitting portion 22 opposite to the light emitting portion 22C is turned on.
D lights up when the lowering operation of the second winch 6 is detected. Thereby, the operation and the operation direction of the boom 3 with respect to the operation of the operation lever for raising the boom are also displayed on the display panel 2.
1 can be confirmed.

A light emitting portion 22E provided below the second mark 21B is turned on when the operation of the hydraulic motor for rotating the upper swing body 2 to the right turning side is detected, and the light emitting portion 22E is turned on.
The light emitting unit 22F in the direction opposite to E is turned on when the operation of the turning hydraulic motor to the left turning side is detected. Thereby, the turning operation and the operation direction of the upper swing body 2 with respect to the operation of the swing operation lever of the upper swing body 2 can be confirmed on the display panel 21.

A light emitting portion 22G provided at one end of the TR side crawler portion of the third mark 21C is turned on when an operation of the hydraulic motor for driving the right crawler of the lower traveling body 1 in the forward direction is detected, Light emitting unit 2 opposite to light emitting unit 22G
2H is lit when the operation of the hydraulic motor for driving the right crawler in the reverse direction is detected. Also, the third mark 2
The light emitting portion 22I provided at one end of the TL side crawler portion 1C is turned on when an operation of the hydraulic motor for driving the left crawler of the lower traveling body 1 in the forward direction is detected, and the light emitting portion 22I faces in the opposite direction to the light emitting portion 22I. The light emitting portion 22J is turned on when the operation of the hydraulic motor for driving the left crawler in the reverse direction is detected. Thereby, the operation and the operation direction of the pair of crawlers 1a in response to the operation of the operation lever for traveling control can be confirmed on the display panel 21.

A rotation pointer 23 is provided at a position corresponding to the base end of the boom of the second mark 21B. The rotation pointer 23 rotates by an angle equal to that of the upper revolving unit 2 in response to the revolving operation of the upper revolving unit 2, and the upper revolving unit 2 is rotated by the combination with a scale 24 provided on the outer periphery of the rotation path. Displays the number of turns from the front position. The turning angle of the upper turning body 2 may be detected by using a well-known rotation angle detecting means such as a rotary encoder, which detects the rotation angle of the turning hydraulic motor.

In the embodiment, the light emitting units 22A to 22J are turned on by the operation of the corresponding working machine, but may be turned on and off. The entire display panel 21 may be constituted by a liquid crystal panel or a CRT, and the marks 21A to 21C and the light emitting units 22A to 22J may all be displayed as images. In this case, for example, the mark 21
Of the A to 21C, only the one corresponding to the work machine whose operation has been detected may be displayed. The display form of the marks 21A to 21C may be changed, for example, by moving the display of the boom portion of the first mark 21A in a manner similar to the operation of the actual machine. In this embodiment, the pressure switch 17 of FIG.
The pressure switches provided in the drive circuits of the respective working machines as in a and 17b constitute detection means, and the display 20 constitutes a display member. The detection of the operation of the work machine is not limited to the pilot pressure, and the operation of an actuator such as a hydraulic motor may be directly detected. The detection and display of the operating direction of the boom 3 or the hook 5 may be omitted, and only the information indicating whether the boom 3 or the hook 5 is operating may be displayed.

The present invention can be applied not only to the above-mentioned crawler crane but also to various construction machines. Hereinafter, application examples to other construction machines will be described. FIG. 4 shows an example of a work display panel when the present invention is applied to a crawler type excavator. The display panel 30 is attached to the operator cab of the excavator, and has a first mark 31A imitating a side view of the excavator, a second mark 31B imitating a boom, and a lower traveling body on the surface. The displayed third mark 31C is displayed. In the vicinity of the marks 31A to 31C, there are provided arrow-shaped light-emitting units 32A to 32L that are turned on in response to the operation of each unit of the hydraulic shovel. At a position corresponding to the base end of the boom of the second mark 31B, a rotation indicator 33 and a scale 34 for displaying the turning angle of the upper turning body are provided as in the example of FIG. 2 described above.

The light emitting portion 32A is turned on when the boom of the hydraulic excavator is turned upward, and the light emitting portion 32B is turned on when the boom is turned downward. The light emitting unit 32C is turned on when the arm of the excavator rotates upward, and the light emitting unit 3C is turned on.
2D is turned on when the arm rotates downward. The light emitting unit 32E is turned on when the bucket performs a dumping operation (turns to the side opposite to the cab), and the light emitting unit 32F is turned on when the bucket performs a cloud operation (turns to the cab side). The light emitting unit 32G lights up when the upper swing body turns right, and the light emitting unit 32H lights up when turning left. The light emitting unit 32I is turned on when the right crawler moves in the forward direction, and the light emitting unit 32J is turned on when the right crawler moves in the backward direction.
K is the light emitting unit 32 when the left crawler is moving in the forward direction.
L lights up when the left crawler moves in the reverse direction. The detection of the raising operation of the boom, the arm and the bucket, the turning operation of the upper revolving unit, and the operation of the crawler are performed in the same manner as in the example shown in FIG. May be detected.

FIG. 5 shows an example of a work display panel when the present invention is applied to a pile driver. On the display panel 40, first to fourth marks 41A to 41D indicating the first to fourth winch drums provided in the pile driver, a fifth mark 41E indicating the leader undulating drum, and an upper revolving structure are shown. A sixth mark 41F and a seventh mark 41G indicating a pair of right and left crawlers of the lower traveling body are displayed. In the first mark 41A, a pair of light-emitting portions 42A and 42B which are turned on when detecting the winding operation and the lowering operation of the first winch drum, respectively, and in the second mark 41B, the winding of the second winch drum. A pair of light-emitting units 42C and 42D that are turned on by detecting the operation and the lowering operation, respectively,
In the third mark 41C, a pair of light-emitting portions 42E and 42F that are turned on by detecting the winding operation and the lowering operation of the third winch drum, respectively, and in the fourth mark 41D, the fourth winch drum is wound. A pair of light-emitting units 42G and 42H that are turned on by detecting the operation and the lowering operation, respectively.
However, in the fifth mark 41E, a pair of light-emitting units 42I and 42J that are turned on by the lifting operation and the lowering operation of the leader up-and-down drum, respectively, are provided.

On the side of the sixth mark 41F, there are provided a light emitting section 42K which lights up when the upper swing body turns right and a light emitting section 42L which turns on when turning left. 7th mark 4
A light-emitting section 4 that is turned on by the forward movement of the right crawler in 1G
2M, light-emitting unit 42 which is turned on by backward movement of right crawler
N, a light emitting section 42O that is turned on by the forward movement of the left crawler;
The light emitting units 42P that are turned on by the backward movement of the left crawler are provided. In the example of FIG. 5 as well, the operation of each work machine below the first winch drum may be performed by detecting the rise of the pilot pressure of the control valve that switches and controls the operation of the hydraulic actuator of each unit. Also in the example of FIG. 5, a rotation indicator 43 and a scale 44 for displaying the turning angle of the upper turning body are provided near the sixth mark 41F.

FIG. 6 shows another example of a work display panel when the present invention is applied to a pile driver. The same reference numerals as in FIG. 5 denote the same parts as in FIG. The display panel 50 includes
First to fourth marks 51A to 51D indicating the first to third winch drums and the leader up-and-down drum of the pile driver, and a fifth mark 51E indicating the upper revolving unit are respectively provided on the upper revolving unit of the actual machine. It is displayed according to the arrangement when the drum is viewed from above. In the first mark 51A, a pair of light-emitting portions 52A and 52B that are turned on by detecting the hoisting operation and the lowering operation of the first winch drum, respectively, are included in the first mark 51A.
B, a pair of light emitting units 52C, 52C, which are turned on by detecting the winding operation and the lowering operation of the second winch drum, respectively.
In the third mark 51C, a pair of light-emitting portions 52E and 52F that are turned on by detecting the hoisting operation and the lowering operation of the third winch drum, respectively, are provided in the third mark 51C.
1D, a pair of light-emitting units 52G, 5 that are turned on by detecting the lifting operation and the lowering operation of the leader up-and-down drum, respectively.
2H is provided. On the tip side of the fifth mark 51E,
A light emitting section 52I that lights up when the upper swing body turns right and a light emitting section 52J that lights up when the upper swing body turns left are provided.
Regarding the light-emitting units 52A to 52H, those turned on by the hoisting operation are indicated by downward arrows, and those turned on by the lowering operation are indicated by upward arrows, according to the rotation direction of the winch drum when the actual machine is viewed from above. Things.

A sixth mark 51F indicating a pair of right and left crawlers is displayed on both sides of the fifth mark 51E indicating the upper swing body. Inside the sixth mark 51F, a light-emitting unit 52K that is turned on by the forward movement of the right crawler, a light-emitting unit 52L that is turned on by the backward movement of the right crawler, a light-emitting unit 52M that is turned on by the forward movement of the left crawler, and a backward movement of the left crawler A light emitting section 52N that is lit by operation is provided. The sixth mark 51F and the light emitting units 52K to 52N are all LE.
D, a light-emitting body such as a fluorescent tube, or a liquid crystal, etc.
The display position can be changed from the solid line position to the dotted line position in FIG. For example, when the upper swing body 2 faces the front of the construction machine, the display is switched to the solid line position, and when the upper swing body 2 faces the side of the construction machine, the display is switched to the dotted line position. When switching the display to the dotted line position, the positions of the light emitting units 52K to 52N are switched depending on whether the turning direction of the upper turning body is rightward or leftward from the front. Although a rotary encoder or the like is required to determine the rotation direction, it can be shared with the drive system of the rotation pointer 43. 54-5
Reference numeral 6 denotes a lamp for displaying the operation status of another working machine, a safety device, or the like.

[0023]

As described above, according to the first to fourth aspects of the present invention, which operating machine is operating in response to the operation of a specific lever or switch is displayed on the display member in the cab. Therefore, even an immature operator can easily learn the correspondence between the operation levers and switches of the work implement and the operation of the work implement, and can reduce operation mistakes. During the daytime, the operation of the work equipment can be double-checked by visual inspection of the work equipment and the display of the display members, and the operation of the work equipment can be reliably confirmed by the display member even at night, so there is a high sense of security for lever and switch operations. The improvement of work efficiency can be expected. Even if an operation error occurs, the work machine can be stopped immediately to prevent an accident. Since the operation direction of the work machine is also displayed, the operation is easy to learn, which is highly effective in reducing operation mistakes, improving work efficiency, and ensuring safety.

[Brief description of the drawings]

FIG. 1 is a diagram showing a winch drive circuit in an embodiment in which the present invention is applied to a crawler crane.

FIG. 2 is a diagram showing details of a display panel in FIG. 1;

FIG. 3 is a view schematically showing a crawler crane corresponding to FIG.

FIG. 4 is a diagram showing an example of a display panel when the present invention is applied to a crawler type hydraulic excavator.

FIG. 5 is a diagram showing an example of a display panel when the present invention is applied to a pile driver.

FIG. 6 is a diagram showing another example of a display panel when the present invention is applied to a pile driver.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower traveling body 2 Upper revolving superstructure 3 Boom 4 1st winch 5 Hook 6 2nd winch 11 Operating lever of 1st winch 17a, 17b Pressure switch 20 Indicator 21, 30, 40, 50 Display panel

Claims (4)

(57) [Claims] 1. A work display monitor for a construction machine having a plurality of work machines, comprising: a detection means for detecting whether or not each of the plurality of work machines is operating; The side view of the construction machine
First mark imitated, boom provided on the construction machine
A second mark simulating a plan view of the construction machine,
A third mark imitating a pair of left and right crawlers of the undercarriage
Are displayed, and in association with these marks,
Arrows that light up according to the operation and direction of the work equipment
Light emitting portions are provided, respectively, and a booming portion of the second mark is provided.
Position corresponding to the base end of the
In response, a rotation pointer that rotates and displays the turning angle of the upper
And a provided display member, the light emitting portion of the display member, respond to the detection result of said detecting means
A work display monitor for a construction machine, which is illuminated for the first time . 2. A work table for a pile driver having a plurality of working machines.
Display monitor, wherein the plurality of working machines includes a plurality of winch drums,
A body and the undercarriage, Detection hand each working machine for detecting whether each operation in
A step, and a plurality of winches provided in a driver's cab of the pile driver.
Marks indicating rams and the upper revolving unit in plan view
Mark and a pair of left and right claws of the undercarriage
Are displayed and associated with these marks.
Lights up according to the operation and the operation direction of the work machine.
Arrow-shaped light emitting portions are provided, respectively,
Mark indicates that the revolving body rotates in response to the swing motion
A rotation pointer is provided to indicate the turning angle of the upper revolving superstructure.
And a display member, the light emitting portion of the display member, respond to the detection result of said detecting means
Work display mode for construction machinery,
Nita. 3. The work display of the construction machine according to claim 2.
A monitor, The mark indicating the plurality of winch drums is
Is displayed according to the arrangement when viewed from above
The light emitting unit provided in association with this mark
Up and down, respectively, in response to
Formed in the shape of an arrow Construction machinery characterized by being
Industrial display monitor. 4. The construction machine according to claim 2 or 3,
An industrial display monitor, A mark indicating a pair of crawlers on the left and right sides of the lower traveling body
Is when the upper revolving superstructure is facing the front of the construction machine
And two types of marks when facing to the side.
The display position of these two marks should be switchable.
And a work display monitor.