JPH07228476A - Length adjusting device for suspending belt - Google Patents

Abstract

PURPOSE:To smoothly wind belts onto winding drums by providing three or more suspension belts, arranging the belts in the perpendicular direction to each other on a hoist section, fitting adjusting metals to each belt end with two set bolts, and adjusting the adjusting metals separately on the right and left in the belt width. CONSTITUTION:Four sets of belt winding drums 4 are provided below a frame 1 for hoisting/lowering suspension belts 4, and the belts 4 are arranged in the direction of 90 deg. to each other. When the length of the belt 4 is to be adjusted, nuts 24 on adjusting bolts 23 are removed, the adjusting bolts 23 are rotated to vertically move adjusting metals 6, and the interval between the winding drum 8 and a hoist base 5 is adjusted. This adjustment is made for four belts 4. The belts 4 can be smoothly wound onto the winding drums 8, and the lengths of the belts 4 can easily be adjusted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The belt length adjusting device of the present invention is
The present invention relates to a machine for lifting and moving goods.

[0002]

2. Description of the Related Art The prior art is generally known take-up type (rope take-up, chain take-up, etc.).
Then, it has been said that the length of one center is adjusted with respect to the center line or the two axes of interest are adjusted evenly with respect to the center line.

[0003]

In a crane using a belt having rigidity, it is necessary to fix the belt ends at a plurality of places by means of a suspending tool, and it is necessary to adjust each so that the suspending tool becomes horizontal. Moreover, it is not possible to stretch it properly without adjusting the left and right of the rigid belt width.

[0004]

[Means for Solving the Problems] A belt fixing metal fitting is attached to an adjusting metal fitting, and the adjusting metal fitting can be adjusted so that the left and right sides of the belt width can be separately adjusted with two adjusting bolts.

The adjustment fitting is made to be slidable by the length of the long hole with respect to the bolt fixed to the hanger side.

[0006]

The operation will be described with reference to FIG. 5 of the present invention.

FIG. 5 shows an example of fixing the rigid belt to the hanger. To fix the belt to the hanger, attach the steel belt bent with a stopper to the adjustment fixture 6, and attach it so that it can slide with the bolt 22 fixed to the main body side. The adjustment is performed with the bolt 23 attached to the hanger side. .

[0008]

Embodiments of the present invention will be described below with reference to FIGS.

In a hoist that is mounted with traveling wheels 2 mounted on a hoist frame 1 and is suspended on a traveling rail 3, a belt 4 having rigidity for hoisting and lowering.
To use. A lifting tool base 5 is attached to the belt 4 by means of a belt stopper 7 and an adjusting member 6.

In order to wind and lower the belt, four sets of belt winding drums 8 are provided below the frame 1 and the rigid belts 4 are arranged on four sides.

As a means for rotating the drum 8, a motor 9 is provided in the lower center of the frame 1 as shown in FIG. 2, a belt 11 is hung on a pulley 10 and a pulley 12, and a bevel gear 14 driven on a drum drive shaft 13 is used. Four drums 8
It has a structure to rotate.

Further, in order to drive the entire hoist, a drive motor 15 is attached to the upper portion of the frame 1, a pinion 16 is driven at the shaft end, and the idle gear 17 and then the wheel gear 18a are engaged. In order to drive the other wheel, the idle gear 19a that meshes with the wheel gear 18a meshes with the drive shaft gear 20a, and the other wheel gear 18b
Is driven via a drive gear 20b and an idle gear 19b.

FIGS. 4 to 6 are detailed views of the belt length adjusting device of the present invention, which is the belt length adjusting device for the hoist described with reference to FIGS.

The belt 4 has its front end bent and is attached to the adjustment metal fitting 6 by the bolt 21 as shown in FIG. Adjusting bracket 6 is stud bolt 2
It is attached to the hanger base 5 by means of 2, and there is a slight clearance between the stud bolt head and the adjustment metal fitting surface. The adjustment metal fitting 6 is attached to the hanger base 5 by the adjustment bolt 23. As shown in FIG. 4, the bolt hole on the adjustment metal fitting side for attaching the stud bolt is a long hole.

When adjusting the belt length, the adjusting bolt 2
Remove the nut 24 from 3 and adjust bolt 23
The adjustment metal fitting 6 moves up and down by turning, so the drum 8
And the interval between the hanging tool base 5 can be adjusted. By making the belt portions at the four places in this way, the hanging tool base 5 is kept horizontal and the belt tension at the four places can be adjusted.

Further, although the belt is attached by bending, since the straightness is difficult to be obtained even when the belt is bent, an angle for mis-fixing is formed in the belt width direction. As a result,
If the misalignment angle is not adjusted with respect to the horizontal line in the belt width direction, either the left or right of the belt width will sag, which will adversely affect the smooth winding on the drum 8.
To remove it, it is necessary to individually adjust the tension on the left and right of the belt width. To make this adjustment, the left and right adjustment bolts are turned separately as shown in FIG. 4, and this adjustment metal fitting 6 has some angle, but the stud bolt 22 and the adjustment that guides it. Since there is a gap between the elongated holes of the metal fitting 6, the adjustment metal fitting 6 can be naturally angled to some extent, so that tension in the lateral direction of the belt can be adjusted.

[0017]

EFFECTS OF THE INVENTION By using the belt tension adjusting device of the present invention, it is possible to smoothly wind a rigid belt around a hoisting drum and to easily adjust the belt length.

[Brief description of drawings]

FIG. 1 is a front view of a crane using a rigid belt.

FIG. 2 is a view on arrow AA of FIG.

FIG. 3 is a view on arrow BB in FIG.

FIG. 4 is a detailed front view of the belt adjusting device.

5 is a view taken along the line CC of FIG.

FIG. 6 is a view on arrow D-D of FIG. 4.

[Explanation of symbols]

1 ... Hoist frame, 4 ... Rigid belt for winding up and down, 5 ...
Base for lifting equipment, 6 ... Adjustment metal fittings, 7 ... Belt stopper metal fittings, 8
… Lifting belt, 9… Lifting motor.

Claims (1)

[Claims] 1. In an overhead crane, as a means for suspending a hook or a grip from a hoist drum, it is suspended by a belt having rigidity, and the number of suspension belts is 3 or more,
The belt set length is set to the left and right with respect to the belt width together with the belt attached to the adjustment metal fitting with two set bolts at the belt end of the hoist where the orientations of these belts are arranged so as to have a component of 90 degrees to each other. A belt length adjusting device for suspension, which can be adjusted separately.