JPS63310495A - Crane guide display unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a display device that guides a one-man operation in a crane that transports a coil of iron plate in a steel mill or the like. It is.

[Conventional technology]

FIG. 3 is an overall view showing, for example, a conventional crane. In the figure, (1) is the crane body, (2) is the crane (
(1) is a club that moves at right angles to the running direction; (3) is a hanging beam suspended from the club (2); (4) is a lid that is removably attached to the hanging beam (3); (5) is a The opening/closing claw of the lifter is shown. (9) shows the operator's cab where the crane operator rides. αO indicates a coil wound with an iron plate.

Next, the operation will be explained. The crane operator in the operator's cab (9) moves the crane (1) to a position above the coil α0, moves the club (2), and after positioning, hangs the hanging beam (3) and lifts the lifter (4). Close the claw part (5) of the coil QG, hang the claw part (5) on the inner diameter part of the coil QG, lift it up, and transport it.

[Problem that the invention seeks to solve]

Conventional cranes are configured as described above.
The traveling position could be determined by a position detection device attached to the crane body, but in the operation of grabbing the coil, there may be a large coil in front of the desired coil, so it is not always necessary to visually check the inner diameter. If you cannot see it, or even if you can see it, the operator's cab (9.
) It is difficult to align the position because it is viewed from diagonally above.
The problem is that I often have to wait for the signal from the ground slinger.

This invention was made in order to solve the above-mentioned problems, and it is possible to grasp the coil which cannot be seen from the crane operator's cabin by arranging obstacles and unloading the inner diameter part of the coil. The purpose of the present invention is to obtain a display device that can inform the crane operator.

[Means for solving problems]

In the device according to the present invention, a detection device for detecting an obstacle at the lower part of the lifter and a detection device for detecting a hole in the inner diameter of the coil are attached to the lifter, and a display device for displaying the detection results is installed on the suspension beam. [Function] The display device according to the present invention uses an extractor attached to the lifter to display the presence or absence of an obstruction at the lower part of the lifter and whether the inner diameter hole of the coil can be grasped.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, (3) is a hanging beam, (4) a beam lid, (
5) The beam lid claw part, (6) is a photoelectric switch for coil holes embedded in the four corners of the surface, and the 10,000 claw is equipped with a light emitter and the other claw is equipped with a light receiver. (7) is an ultrasonic switch attached to the lower part of the nail for detecting obstacles below the nail.
・Te, (8) shows the display device attached to the side of the hanging beam (3). FIG. 2 shows the display contents of the display device. In the figure, ■υ is the left type lower obstacle detection indicator light, is the right type lower obstacle detection indicator light, and is the coil hole detection indicator light.

Next, the operation will be explained. The crane operator positions the crane on the coil α0, and then lowers it while checking that there are no obstacles below while looking at the lower obstruction detection indicator lights c:n and cp on the display device (8).

Photoelectric switch for coil hole detection using coil αQ (7)
After the light is transmitted through the crane, the crane operator moves to a position where all four lights are lit again.

By adjusting the winding down, you can grasp the coil scream. With this device, by attaching the display device (8) to the hanging beam, you can see the display contents at the same time as you look at the lifter parts (4) and (5). It is also possible to find the coil hole.

In the above embodiment, an ultrasonic switch is used as the lower obstacle detection device, but depending on the shape and material of the obstacle, a photoelectric switch or a proximity switch may also be used.

In addition, although we have described a coil wound with an iron plate as a load, if the load has a through hole and can be held by a lifter, it can be transported. [Effects of the Invention] As described above, this invention According to the above, the gripping work by a one-man operator is simplified, the conveyance work can be carried out without the need for a sling operator, and at the same time, it is possible to prevent damage to the machine and the coil due to machine collisions.

[Brief explanation of drawings]

Figure at is an overall view showing a crane and a lifter section according to an embodiment of the present invention, Fig. 2 is a view showing display contents of a display device according to an embodiment of the invention, and Fig. 8 is an overall view showing a conventional crane. It is. In the figure, (6) is a coil hole detection photoelectric switch, (7
) is a lifter claw lower obstacle detection device, (8) is a display device,
(2) is the left type lower obstacle detection indicator light, @ is the right type lower obstacle detection indicator light, and (to) is the coil hole detection indicator light. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] A crane that has a lifter that hooks a claw through a through hole in the inner diameter of a load made of a coiled steel plate to lift it up, has an obstacle detection device that detects obstacles below the lifter part and in the direction of the claw. A crane guide display device characterized in that a display device for notifying a crane operator of detected results is attached to a hanging beam.