JPS60242194A - Pantagraph type bracing device - 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 [Field of Industrial Application] The present invention relates to a puncture-type steadying device for, for example, a crane for handling slabs.

[Problems of the prior art that should be solved by the invention] Previously, JP-A-5
As shown in Publication No. 7-112287, a trolley,
The upper and lower ends of two sets of steady arms, which are constructed by connecting a plurality of links so as to be bendable in only one direction, are pivotally connected to the hoist supported by the hoisting rope on the trolley, and the hoist is horizontal. BACKGROUND ART A puncture-type steady-stop device that attempts to prevent shake in one direction is known. However, in this conventional device, for example, although the sway control in the traveling direction of the hanger works strongly, the sway stop does not work at all in the transverse direction. Therefore, a removable steady device is provided on the lower surface of the trolley frame and the upper surface of the hanging device, respectively, and this removable steady device provides steady movement in the transverse direction. The lifting equipment (hanging load) had to be hoisted up to its maximum level each time, which resulted in the inconvenience of not being able to improve the efficiency of cargo handling operations.

[Purpose of the invention]

The present invention was devised to solve the above-mentioned conventional problems, and is capable of powerfully and reliably stabilizing a hanging tool in two horizontal directions in a puncture type steadying device at any position within the lifting range. The purpose is to improve the efficiency of cargo handling operations.

[Structure of the invention]

The puncture type steadying device of the present invention is a trolley.

2, in which a plurality of links are connected to the trolley so as to be able to bend only in one direction, and a hanging device whose both ends are supported by a hoisting rope;
The upper and lower ends of the set of steady-stop arms are pivotally connected, and the steady-hold arms are held bent even when the hanging device is lowered to the maximum, and one ends of the steady-stop arms are moved to opposite sides at the same angle. It is characterized by being connected via a rotatable interlocking mechanism.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

Reference numeral 1 denotes a trolley, which is placed on a crane girder 2 via wheels 6 so as to be able to move laterally. A hoisting drum 5 and a sheave 6.7, which can be rotated forward and backward by a drive device 4, are provided on the trolley 1.

A swinging member 8 is suspended from the center of the trolley 1 via a hanging pin 9 so as to be able to swing within a horizontal plane.

Reference numeral 10 denotes a hanging tool equipped with a gripping device (not shown);
A sheave 11 is provided at both ends in the X direction (see FIG. 1). This hanging tool 10 is attached to the hoisting drum 5,
And the hoisting rope 1 wrapped around the sheave 6°7.11
2 is supported by the trolley 1 via the sheave 11.

13 and 13' are photographic stop arms, and one end of links 14 and 15 degrees 141 and 151 is fixed to X by pins 16 and 16'.
The link 1 is connected so that it can be bent in the direction
The other ends of the links 15 and 15' are pivotally connected to the X-direction end of the pivoting member 8, and the other ends of the links 15 and 15' are connected to the hanging tool 10.
It is attached with a key to a rotating shaft 18.18'' which is rotatably supported by bearings 17 and 17' at the top.The steadying arm 15.15' is attached to the maximum of the lifting device 10 by the upper drum 5. It is constructed so that it remains bent even when lowered.

Reference numeral 19 denotes a steady arm interlocking groove, in which a bevel gear 2 meshes with a rotating shaft 18° 181 and a rotating shaft 21 rotatably supported by a bearing 20 on the hanging tool 10 at right angles thereto.
2, 23, 22', and 23' are attached, and thus the links 15 and 15' are configured to be able to rotate in conjunction with the same angle in opposite directions.

[Effect]

During normal hoisting of a suspended load, the links 15 and 15' rotate counterclockwise and clockwise by the same angle in FIG. 1 so that the bending angle of the steadying arms 13 and 13' increases. When lowering the suspended load, the links 15 and 15' reversely rotate by the same angle in the opposite direction.

This is because the anti-shake arm interlocking mechanism W19 is configured to interlock and rotate the links i 5 and 15' by the same angle in opposite directions, as shown in FIGS. 4 and 5.

This does not affect the above-mentioned hoisting and lowering operation of the suspended load.

If the suspended load swings in the X direction (for example, to the left in Figure 1),
As shown in FIGS. 6 and 7, links 15 and 15'
both rotate clockwise.

Bevel gear 22.22' via rotation axis i Ej, 18'
is rotated in the clockwise direction, and the bevel gears 23, 23' meshed with these gears are attempted to be rotated in mutually opposite directions.
As a result, the swinging of the suspended load in the X direction is quickly stopped.

When the suspended load is about to swing in the Y direction ζ in FIG. 2, the steadying arms 13 and 13' are formed wide in the Y direction,
Since the upper and lower ends have the effect of maintaining the relative Y-direction positions of the trolley 1 and the hanging tool 10, the lifting of the suspended load in the Y-direction is strongly prevented.

In this embodiment, the anti-shake arm interlocking mechanism is a bevel gear mechanism, but it is not limited to this in any way.

For example, the rotating shafts 18 and 18' may be provided with spur gears that mesh with each other.

〔Effect of the invention〕

As described above, 1) the present invention is applicable to a puncture type steady restraint device;
One end of a pair of steadying arms is connected so that both arms rotate at the same angle in opposite directions, and the interlocking mechanism allows the suspension to swing easily. Stabilization in the E-arm bending direction (Y direction) can be performed at any position of the lifting height, and steady stabilization in the width direction (X direction) of the steady arm can be achieved simply by making the steady arm wide. This configuration prevents increases in cycle time due to load swing and improves stopping accuracy, making it effective for crane automation. Further, since the swinging of the hanging tool is strongly and reliably prevented, there is no need to secure a space for the swinging of the hanging tool. Furthermore, by adding a locking arm interlocking mechanism, it can be applied to existing puncture-type steadying devices, and the equipment cost is low.

[Brief explanation of drawings]

1 and 2 are a front view and a right side view showing the configuration of an apparatus according to an embodiment of the present invention, and FIG.
A, A sectional view in the figure, Figures 4 and 5 are plan views and front views for explaining the action during normal lowering, and Figures 6 and 7 are for explaining the action when the suspended load swings in the X direction. FIG. 2 is a plan view and a front view. 1.-Trolley+, 4.. Drive device, 5. Middle hoisting drum,
6, 7.11- Sheave, 8... Swivel member 510... Hanging tool, 12... Hoisting rope, 13.15'@- Steady arm, 14.14', 15.15'... Link, 16,1
61, -bin, 17.17+, 2゜...bearing, 18.1
8', 21...Rotation axis, 19... Steady arm interlocking mechanism, 22.22', 23, 23° threat/bevel gear. 4th is 1 Figure 6 5 Figure 7

Claims (1)

[Claims] The upper and lower ends of two sets of steady arms, each of which has a plurality of links connected so as to be bendable in only one direction, are pivotally connected to a trolley and a hanging device whose both ends are supported by a hoisting rope to the trolley. The flat type is characterized in that one end of the steadying arm is connected to the other via an interlocking mechanism that allows both arms to rotate by the same angle to the opposite side, so that the arm is held bent even when the hanging tool is lowered to the maximum. Steady rest device.