JPH0519406Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a device for displaying the working machine attitude of a power shovel.

PRIOR TECHNOLOGY A power shovel work machine has a boom mounted on an upper revolving structure so that it can move up and down, an arm that is attached to the boom so that it can move up and down, and a bucket that is attached to the arm so that it can move up and down. Atsute, 3
Since it has two members that move up and down, the working machine can take many different postures, and by performing combined operations of the boom, arm, and bucket, the bucket can be moved linearly within a certain range for straight-line excavation.

Problems that the invention aims to solve: The attitude of the work equipment cannot be visually checked from a distance from the power shovel, so it is not possible to visually check the attitude of the work equipment when operating it by remote control from a remote location or when operating underwater. , difficult to operate.

Since it is not possible to visually determine the area that can be excavated in a straight line with a bucket, it is difficult to operate it when excavating in a straight line.

Means and action for solving the problem First sensor 1 that detects the rotation angle of the boom 6
3, a second sensor 14 for detecting the rotation angle of the arm 8, a third sensor 15 for detecting the rotation angle of the bucket 10, a straight line excavation range indication selection switch 25, an angle setting means 26, and a second sensor 14 for detecting the rotation angle of the arm 8; The work machine posture is calculated based on the linear excavation range instruction selection signal from the excavation range instruction selection switch 25, the set angle from the angle setting means 26, and the detected values from each of the sensors, and the linear excavation range is determined according to the set angle. , a display controller 23 that displays the work machine posture and linear excavation range on a display 24 based on the calculation results of the calculation section 21, and means 28 that inputs a signal onto the display 24. Work machine attitude display device.

Thereby, the working machine posture and the linear excavation range can be displayed on the display 24 and visually known, and the linear excavation range and its angle can be arbitrarily selected.

Example: Power shovel A has a swing mechanism 2 on a lower traveling body 1.
An upper revolving body 3 is attached to the upper revolving body 3 through the upper revolving body 3, and a working machine 4 is installed on the upper revolving body 3.

The work machine 4 is a hydraulic excavation type work machine equipped with a boom 6 that swings up and down with a boom cylinder 5, an arm 8 that swings up and down with an arm cylinder 7, and a bucket 10 that swings up and down with a bucket cylinder 9. It's summery.

The swing mechanism 2 includes a swing motor 11 and a swing brake 12. When the swing motor 11 is driven by supplying pressure oil, the upper structure 3 rotates, and when pressure oil is supplied to the swing brake 12, the upper structure 3 rotates. is braked so that it stops turning.

The work equipment 4 includes a first sensor 13 that detects the vertical swing angle α of the boom 6, a second sensor 14 that detects the vertical swing angle β of the arm 8, and a bucket 1.
A third sensor 15 that detects the vertical swing angle δ of 0 is provided, and each sensor is a potentiometer that outputs an electric signal proportional to the rotation angle.

FIG. 1 is a control circuit diagram, and shows the first, second and
The detected values of the third sensors 13, 14, and 15 are input to the calculation unit 21 via the interface 20, and the calculation unit 21 receives commands from the control unit 22 to determine the positions of the boom 6, arm 8, bucket 10, linear excavation range, etc. is calculated, and the display controller 23
The calculation results are sent to the display 24 to display the positions of the boom 6, arm 8, and bucket 10, that is, the posture of the work machine and the linear excavation range.

25 is a linear excavation range instruction selection switch, and 26 is an angle setting means, from which a linear excavation range instruction selection signal and a setting angle are input to the control unit 22, and an image pattern is input to the control unit 22 and the display controller 23. A storage unit 27 is connected.

Next, the details of each part will be explained along with the operation.

During normal excavation, the 1st, 2nd, and 3rd sensors 1
Based on the detected values 4, 15, and 16, the calculation unit 21 calculates the boom position, arm position, and bucket position, and the display controller 23 displays the work machine posture on the display 24.

A linear excavation range instruction selection signal is input from the linear excavation range instruction selection switch 25 to the control section 22, and the set angle is input from the angle setting means 26 to the control section 2.
2, those signals are sent from the control unit 22 to the calculation unit 21, which calculates the linear excavation range according to the set angle, and displays the result on the display 24 from the display controller 23. -Display Y.

28 is a means for inputting a signal onto the display 24, which makes it possible to teach the position on the screen of the display 24.

Effects of the invention Since the attitude of the work equipment can be displayed on the display, the attitude of the work equipment can be visually detected even when operating in a remote location or underwater, making operation of the work equipment simple and easy.

The straight line excavation range can be visually known on the display, and the straight line excavation can be performed by operating the bucket 10 to move along the straight line excavation range, making the straight line excavation operation simple and easy.

Further, since the straight line excavation range can be arbitrarily selected by the straight line excavation range indication selection switch 25, and the angle of straight line excavation can be arbitrarily selected by the angle setting means 26, an arbitrary line can be displayed at any angle on the display 24. The straight line excavation range can be displayed, and straight line excavations at different angles and ranges can be performed with simple operations.

Further, since a signal can be inputted onto the display 24 by the signal input means 28, the position can be taught on the screen of the display 24.

Furthermore, since the display 24 is lightweight and easy to carry, the operator can operate the work machine while holding the display 24.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a control circuit diagram, and FIG. 2 is an overall diagram of a power shovel. 6 is boom, 8 is arm, 10 is bucket, 1
3, 14, 15 are the first, second, third sensors, 2
1 is a calculation unit, and 24 is a display.

Claims (1)

[Scope of utility model registration request] The first sensor 1 detects the rotation angle of the boom 6
3, a second sensor 14 for detecting the rotation angle of the arm 8, a third sensor 15 for detecting the rotation angle of the basket 10, a straight line excavation range indication selection switch 25, an angle setting means 26, and the straight line The work machine posture is calculated based on the linear excavation range instruction selection signal from the excavation range instruction selection switch 25, the set angle from the angle setting means 26, and the detected values from each of the sensors, and the linear excavation range is determined according to the set angle. , a display controller 23 that displays the work machine posture and linear excavation range on a display 24 based on the calculation results of the calculation section 21, and means 28 that inputs a signal onto the display 24. Work machine attitude display device.