JPH10258986A - Attitude control device for hanging equipment - Google Patents

Abstract

An object of the present invention is to provide a posture control device having a simple configuration. When a cylinder device is extended and contracted, a lever is rotated, a rope is operated, and a hanging member is tilted vertically. The sheaves 30A, 30B are mounted on the lever 21 via pins 33A, 33B eccentric with respect to the center of rotation. Lever fixed to pins 33A and 33B and 40
A, 40B and the cylinder devices 45A, 45B are connected. When the cylinder devices 45A and 45B are expanded and contracted, the hanging tool tilts and turns sideways.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for controlling a posture of a hanger in a crane.

[0002]

2. Description of the Related Art To control the posture of a hanging device, the sling of the hanging device in the lateral direction of the hanging device (that is, the traveling direction of a trolley with the hanging device suspended) (hereinafter referred to as lateral tilting), and the hanging device. There is control of three postures of tilting of the hanging tool in the vertical direction (hereinafter, referred to as vertical tilting) and turning of the hanging tool.

Generally, it is required to control the attitude in two directions. For example, vertical tilt and horizontal tilt. This type of attitude control device is disclosed in Japanese Patent Application Laid-Open No. Sho 62-21293. In this case, a lever is provided on a truck moved by a cylinder device, and a rope is connected to each end. When the cart is moved, the vehicle tilts vertically, and when the lever is rotated by the driving device, the vehicle tilts laterally.

[0004]

According to the above-mentioned attitude control device, a truck is required, so that the structure is complicated. Further, since the carriage is moved, the cylinder device needs to have a long stroke, which is expensive.

[0005] In addition, although vertical tilt and horizontal tilt are possible, the swinging operation of the suspender cannot be performed.

An object of the present invention is to provide a posture control device having a simple configuration.

[0007]

SUMMARY OF THE INVENTION The object of the present invention is to provide two first sheaves for defining an interval between two ropes suspending one end of a suspender, and a distance between two ropes suspending the other end of the suspender. Two second sheaves for defining, a rotation center between the first sheave and the second sheave,
A rotatable lever with the center in the longitudinal direction as the center of rotation,
A third sheave provided on one end side of the lever and having a diameter larger than a distance between the two sheaves of the first sheave;
A fourth sheave provided on the other end side of the lever and having a diameter larger than a distance between the two sheaves of the second sheave, and each of the third sheave and the fourth sheave to the lever; A pin for supporting a position eccentric with respect to the rotation center of the sheave, a lever for rotating the lever, the pin of the third sheave, and the pin of the fourth sheave, respectively. A first driving device, a second driving device, the third driving device, and a rotation device provided along a longitudinal direction of the lever to rotate the lever with respect to a rotation center of the third sheave and the fourth sheave. A long groove provided on both sides around the groove of the sheave in the axial direction of the sheave, and one end movable along the long groove, and of And a fixing device for fixing each of the ropes suspended on the fourth sheave, wherein each fixing device is provided with the lever of the first sheave and the second sheave. This can be achieved by fixing each rope via a sheave located on the side of the center of rotation of the rope.

[0008]

1 to 9 show an embodiment of the present invention.
This will be described below. FIGS. 4 and 5 show the plate of the piece 21A of the lever 21 on the upper surface of the long groove 24A.

In FIG. 9, ropes 12A, 12B, 12C and 12D from the hoisting device 10 are provided with sheaves 14A, 14B, 14C and 14D from one end of the girder, and sheaves 16A, 16B, 16C and 1C of a trolley 15 traveling on the girder.
6D, sheaves 18A, 18B, 1
8C, 18D, sheaves 16A, 16B, 1 of trolley 15
The posture control devices 20 provided on the other side of the girder and the other side of 6C and 16D are connected.

The attitude control device 20 will be described with reference to FIG. At the end of the girder 13, a T-shaped lever 21 is horizontally rotatable by a pin 23. The support seat 13D on which the pin 23 is installed is above and below the end of the girder 13. The center piece 21A of the T-shaped lever 21 faces the traveling path side of the trolley 15. Between the end of the piece 21A and the girder 13,
A driving device 25 for rotating the lever 21 is provided.
The driving device 25 is an electric cylinder device.

Sheaves 30A and 30B are provided at the end of the long piece 21B of the T-shaped lever 21. Sheave 30A,
30B rotates horizontally. The diameter of the sheaves 30A, 30B is
The distance between the rope 12A (12D) and the rope 12B (12C) on the traveling path of the trolley 15 is sufficiently larger.
Sheaves 49A, 49B, 49C, and 49D are provided at the end of the traveling path of the trolley 15 to secure the distance between the ropes.
Is installed on the girder 13. Rollers 48A and 48B for supporting the rope are provided on the side of the sheave on the traveling road.

The sheave 30A and the ropes 12A and 12B at one end of the lever 21 and the cylinder device 4 of the driving device
The relationship with 5A is the sheave 30B on the other end, the rope 12
Since the relationship between D, 12C and the cylinder device 45B is the same, only the sheave 30A will be described. Components on the sheave 30A side are denoted by “A”, and components on the sheave 30B side are denoted by “B”. The case where A or B is not added is shown collectively.

In FIG. 1 to FIG. 5, the rope 12A is connected to a rope fixture 3 via a sheave 49A and a sheave 30A.
5A is fixed to the tip side. Rope 12B is sheave 4
It is fixed to the distal end side of the fixture 35A via 9B.
The base end of the fixture 35A is fixed to the long piece 21B of the lever. The base end of the fixture 35A is fixed to a long groove 24A along the longitudinal direction of the long piece 21B of the lever. Fixture 35
The base end of A is a sliding body 37A that moves along the long groove 24A.
Through a pin 39A.

The long groove 24A extends along the longitudinal direction of the long piece 21B of the lever. The long groove 24A is located closer to the center of the pin 23 than the rotation center of the sheave 30A. The long groove 24A is a sheave 3
In the axial direction of 0A, it is inside and outside centering on the groove for hanging the rope of the sheave 30A. Therefore, the longitudinal direction of the fixture 35A is on a tangent connecting the sheave 30A and the sheave 49B.

Although the cross section of the long piece 21B of the lever 21 is box-shaped, the sheave 30A and the fixing tool 35A can be protruded from one end of the fixing tool 35A. The fixture 35A is fixed to a long groove 24A provided in the lower piece 21Bb of the lever 21. The ropes 12A and 12B are sandwiched between holding members 35Aa at the tips of the fixing members 35A, and are fixed with a plurality of bolts.

The sheave 30A is supported by pins 33A on the upper and lower pieces of the long piece 21B of the lever. Sheave 30
The pin 33A is located at a position eccentric to the rotation center of A. A pin is fixed to the support member 30Aa at the center of the sheave 30A. There is a bearing 30Ab between the support member 30Aa and the sheave 30A.

A lever 40A is fixed to the upper end of the pin 33A. The lever 40A is above the lever 21.
The end of the lever 40A is connected to the cylinder device 45A of the driving device. The cylinder device 45A is a long piece 2 of the lever.
Installed on the side of 1B. The cylinder device 45A is of an electric type.

When the rod of the cylinder device 25 is projected, as shown in FIG. 6, the lever 21 rotates about the pin 23, and the hanging member 17 tilts vertically. When the rod of the cylinder device 25 is retracted, the hanging member 17 is vertically inclined in the opposite direction. Since the vertical tilt is performed by rotating the lever 21, the stroke of the cylinder device 25 can be reduced.

As shown in FIG. 7, the cylinder devices 45A, 45
When the rod B is projected, the levers 40A and 40B rotate outward. Therefore, the sheaves 30A and 30B move to the traveling road side. At this time, the base ends of the fixtures 35A and 35B move along the long grooves 24A and 24B. Rope 12
A and 12C move to the traveling road side, and the positions of the sheaves 18A and 18C are lowered. That is, the hanging member 17 is tilted sideways. Sheave
The lengths of the ropes 12B, 12D from 30A, 30B to the hanging device 17 do not change.

As shown in FIG. 8, when the rods of the cylinder devices 35A and 45B are retracted, the sheaves 30A and 30B protrude toward the ends of the girder (opposite the traveling road). For this reason, rope 12
A, 12C move to the end side of the girder (the side opposite to the traveling road),
The positions of the sheaves 18A and 18C are raised. That is, the hanging member 17 is inclined sideways in the opposite direction. 4 is an enlarged view in the case of FIG. 6, and FIG. 5 is an enlarged view in the case of 8.

As shown in FIG. 9, the rod of the cylinder device 35A is projected, and the rod of the cylinder device 35B is retracted.
When the two levers 40A and 40B are rotated to the left, the position of the sheave 18A is lowered and the position of the sheave 18C is raised. The ropes 12A and 12C move to the traveling road side, and the sheaves 18A and 18C are moved.
The position of C goes down. The distance between the sheave 16B (16D) of the trolley 15 and the sheave 16A (16C) is the sheave 18B (18
D) is larger than the distance between sheave 18A (18C),
The hanging tool 17 turns. If the levers 40A and 40B are rotated in the opposite directions, the hanging member 17 turns in the opposite direction.

If turning is unnecessary, the cylinder devices 35A, 45
B need not be operated as in FIG.

Instead of the cylinder devices 25, 45A, 45B, a drive device for directly rotating the pins 23, 33A, 33B can be used.

When the hoisting device 11 is installed on the trolley 15, the attitude control device 20 can be installed on the trolley 15.

The technical scope of the present invention is not limited to the terms described in the claims or the terms described in the section for solving the problems, and is easily replaced by those skilled in the art. It extends to a range.

[0026]

According to the present invention, since the sheaves are supported by the eccentric shafts at both ends of the rotatable lever, the structure can be simplified.

[Brief description of the drawings]

FIG. 1 is a plan view of a posture control device according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a fixing portion of the rope of FIG.

FIG. 3 is a longitudinal sectional view of a fixing portion of the sheave in FIG. 1;

FIG. 4 is an enlarged plan view of a portion of the sheave in FIG. 1;

5 is an enlarged plan view of a portion of the sheave in FIG. 1 at the time of lateral tilt.

FIG. 6 is a plan view of FIG. 1 at the time of vertical tilt.

FIG. 7 is a plan view of FIG. 1 at the time of lateral tilting.

FIG. 8 is a plan view of FIG. 1 at the time of lateral tilting.

FIG. 9 is a plan view of FIG. 1 at the time of turning.

FIG. 10 is a layout view of a crane rope.

[Explanation of symbols]

12A, 12B, 12C, 12D: rope, 30A, 3
0B, 49A, 49B, 49C, 49D: sheave, 33
A, 33B: eccentric pin, 21, 40A, 40B: lever, 25, 45A, 45B: cylinder device, 35A, 3
5B: Rope fixing tool, 24A, 24B: Long groove.

Claims (5)

[Claims] 1. A first sheave for defining an interval between two ropes hanging one end of a hanging tool, and two second sheaves for defining an interval between two ropes hanging the other end of the hanging tool. A rotatable lever having a center of rotation between the first sheave and the second sheave and having a center in the longitudinal direction as a center of rotation; a rotatable lever provided at one end of the lever; A third sheave having a diameter larger than the distance between the two sheaves of one sheave; a fourth sheave provided on the other end of the lever and having a diameter larger than the distance between the two sheaves of the second sheave; And a pin for fixing each of the third sheave and the fourth sheave to the lever, the pin supporting an eccentric position with respect to the rotation center of the sheave, and the lever; Said pin of sheave 3 and in front A first driving device, a second driving device, and a third driving device that respectively rotate the pins of a fourth sheave; and a third driving device that is provided along a longitudinal direction of the lever. A long groove provided on both sides of the sheave in the axial direction of the sheave with respect to the center of rotation of the lever, and a long groove provided on both sides around the groove of the sheave in the axial direction of the sheave; Movable,
At the other end, a fixing device for fixing each of the ropes bridged over the third sheave and the fourth sheave, wherein the respective fixing device includes the first sheave and the second sheave. The posture control device of the hanging device, wherein each rope of the sheave is fixed via a sheave located on the rotation center side of the lever. 2. The attitude control device according to claim 1, wherein the attitude control device is provided at an end of a girder on which a trolley for hanging the hanging tool runs, the lever is T-shaped, and the first drive device is a cylinder device. The direction of the rod of the cylinder device is parallel to the longitudinal direction of the lever, and the cylinder device installed at the end of the girder is connected to the T.
A posture control device for a hanging device, wherein the posture control device is connected to a central piece of the hanging shape. 3. The device according to claim 1, wherein said second driving device rotates said pin of said third sheave, and said fourth driving device rotates said pin of said fourth sheave. The posture control device of the hanging tool, characterized in that: 4. The method according to claim 1, wherein in the first state,
A direction in which the second driving device rotates the pin of the third sheave is opposite to a direction in which the fourth driving device rotates the pin of the fourth sheave, and a second state Wherein the direction in which the second driving device rotates the pin of the third sheave and the direction in which the fourth driving device rotates the pin of the fourth sheave are the same. A posture control device for hanging equipment. 5. The device according to claim 1, wherein the second driving device and the third driving device are each a cylinder device, the lever is provided, and the third driving device is fixed to the pin of the third sheave. The third lever is connected to the rod of the second cylinder device, and the fourth lever fixed to the pin of the fourth sheave is connected to the rod of the third cylinder device. An attitude control device for a hanging tool, characterized in that: