JPS5882989A - Device for positioning overhead travelling crane - 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 The present invention relates to a ninth positioning fold that allows a crane traveling on the ceiling of a building to stop at a predetermined position.

When a conventional overhead crane transports a suspended load to a predetermined position, it performs a so-called "intending operation" in which the crane girder and club are moved slightly! The disadvantage is that the rate is poor and the brakes and contactors wear out rapidly.

The unexploded I11 runs with sharp direction from the crane, f1! The club is fired upward at the same time, the reflected signal is detected and calculated, and the calculation output is determined by a discrimination circuit to determine the stopping position Ilt, and the V-Y girder and club are stopped at a predetermined position without performing inching operation. It has been made possible.

In the example shown in the drawings, 1 is a crane framed in the form of a bridge girder, with single wheels at the four corners of the 2t building, and installed on the main girder 3.3 of the building.
4.4 and run horizontally and vertically across the ceiling of the building. 5 is a club attached to the crane 1, which is hoisted up and horizontally, moved horizontally and vertically on the crane by a traveling roller (not shown), and hooks 8 onto the μm gua hanging from the drum 6.
9 tons of loaf on this knock.
Hang the item At. A scanner 10t is attached to an arbitrary location on the left-south side of the lower surface of the crane 1, and a sub-scanner 16 is attached to an arbitrary location on the right shoulder of the crane opposite thereto.

As shown in Figure 3, it! A generation source 11 that generates a directional sharp i signal is provided at the 0 part of the f-device 10, and a semi-transparent body in the form of a right isosceles triangle, for example, a half 1
Rhythm 4! Rearrange the reflection 15 through the 121i, constantly shake the internal position of this reflection MF: 6 centering around the rear pivot 14, and adjust it to the desired angle along with the fi+ flesh of the semi-transparent body 12. Fix the reflector 15 to the ◎Tracking f unit 16
is the axis of electric painting 17 [reflection 11 that constantly swings as the center]
8t - built-in, this reflector 18f reflector 15 inside the scanner
make them go to The scanning a10 is sent from a signal Be generation source 11 with sharp directivity such as a laser or a light beam, and a part of it is transmitted B1.
passes through the semi-transparent body 12 and hits the swinging reflecting mirror 1s,
The signal 82 is reflected downward and scans the floor Ixi of the building in a desired direction, and the signal 82 reflected on the slope of the semi-transmissive body 12 passes through the fixed reflector 15 and is reflected in the oscillating mirror in the sub-scanner. The signals hit the mirror 18, are reflected by the mirror 18, and are scanned downward and along the transport path of the load suspended above the floor of the building.

As shown in the second diagram, the item A is on the same right side of the floor as Cv.
cTos, this item shall be transported and unloaded at a location in front of the left side of the floor.Reflective strips 21°22, 25t-p1 shall be attached to at least three locations on the upper side or near the upper side edge of item A.
24.25.2 Reflective strips in at least 3 locations in the wholesale area.
6 is pasted on the tap luck@'m circle as shown in Figure 4. Detection calculator E.

A discrimination circuit Gt for discriminating between F and its calculation output is provided. Detection calculation! E and F are running signals B1. B2 receives the reflected signals reflected by the reflective pieces 21 to 25 and the reflective pieces 24 to 26, respectively, toward the upper blade, and as shown in FIG. Knowing the signal t reflected from 21 to 23, calculate the circle oim* and its center PK from the plane coordinates 21 to 25 of the three points and display it in analog or digital form. 5 points 24~
Detecting the 1f signal reflected from 26, the plane coordinates of the three points 2
A circle Qt is drawn using numbers 4 to 26, and its center point Rt is calculated and displayed in analog or digital form. The discrimination circuit G discriminates the two calculation outputs P and R and becomes P-R-0, and when it stops, the crane 1 and 2 are stopped for 5 t''.One embodiment of the present invention has the above configuration. At?The action will be explained assuming that it is transported from the place C on the other side of the floor to the place tHD in the front left.

While moving the club 5 to the right side of the crane 1 and moving the crane forward, the scanning signal B1. Fire B2 downward and hit 3 points 21-23 of product mA.
Detection calculator E detects No. 11 reflected from
i is calculated and the calculated signal is input to the discrimination circuit G.Next, lift up the item A, move the tap 5 to the front, move the Kuku crane 1 to the right, and send the scanning signal B1. B11 - Reflect the signal at five points 24 to 26 at the wholesale location, detect the signal with the detection calculator F, calculate the center of the circle Q drawn by the plane coordinates 24 to 26 of the five points, and determine the x output signal. input to circuit G. The discrimination circuit G uses two calculation signals P.

Determine R and stop crane 1 and club j5 when P-R-OK.
Therefore, when the product At is taken and placed at a predetermined place DK, the centers of both coincide. For example, the scanner may emit a scanning signal of at least 281 m and detect and distinguish this scanning f signal, thereby making the positioning more accurate.
Moreover, it is particularly suitable not only for transporting the present invention, but also for cases where extremely accurate positioning is required, such as when disassembling and then assembling a machine.

In the present invention, the crane is provided with a scanner that simultaneously emits a directional acute %/-h scanning signal downward, a search ffS, and a reflection signal detection calculator, and the calculation output is discriminated by a discrimination circuit. Since the stopping position is determined, it is possible to stop the crane and club at a predetermined position without having to carry out the turning operation, which has the effect of avoiding the brake and contactor being turned off and improving work efficiency. 0

[Brief explanation of drawings]

' The drawings show one example of the device of the present invention, and FIG. 11 of the embodiment, FIG. 2 is a plan view thereof, and FIG. 3 is the i1! Ming map,
FIG. 4 is a system diagram of the detection arithmetic unit and the discrimination circuit, and FIG. 5 is an explanatory diagram of the arithmetic output. In addition, 1rj crane, 10ri*: F equipment, 16t'1t
lA running tableware, E and Fri detection calculator, G is discrimination Ig1w
It is k. % Hidehito Hitachi Kiden Industries Co., Ltd. Agent Hayashi
f# Akira IZ 3rd factor 5 θ

Claims (1)

[Claims] (The IJ crane is equipped with a running f signal that emits a sharply directional running f signal downward at the same time, a running f, and a detection calculator t that receives the reflected f signal. Based on the calculation output, the crane's stop position is Ceiling V characterized by being equipped with a discrimination circuit that determines
(2) A scanning device emits at least 24 types of scanning signals, and a detection calculator and a discrimination circuit for detecting and discriminating the scanning signals 1-*Patent claim The ceiling clay positioning device according to item 1.