JPH09202420A - Seal belt device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a seal belt from being rolled up and improve the dustproofing property of the seal belt. SOLUTION: A seal belt device is provided with a seal belt pressing device 5 having presser bars 9 and guides 13 which are provided at a transfer car 4 and smoothly push away and guide the presser bars 9. Since the presser bars 9 are possible to turn, and energized by a spring mechanism, the presser 9 follows the movement of the transfer car to turn, and returns to the original positions after the transfer car passes, and then exhibits their primary function as the presser bars 9 of the seal belt 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal belt device installed on a belt conveyor for carrying bulk materials such as coal and iron ore.

[0002]

2. Description of the Related Art Generally, bulk materials such as coal and iron ore discharged from an unloader are transferred and transported on a belt conveyor provided on the ground. 3 is a side view of the belt conveyor, and FIG. 4 is a view on arrow A in FIG. In addition, in FIG. 3, the belt conveyor is shown transparently.

In FIG. 3, a load discharged from an unloader (not shown) or the like is conveyed by an in-machine belt conveyor (not shown) of the unloader, and from a chute provided at the tip thereof, an in-machine belt conveyor of the unloader ( It is transferred and transported on the belt conveyor 1 installed orthogonal to (not shown). Dust is generated during transfer and transportation, so be careful not to scatter the dust.
The belt conveyor 1 is enclosed in a box shape by a conveyor cover 2 having an open top, and a seal belt 3 is placed on the conveyor cover 2 to seal the belt conveyor 1 (see FIG. 4). The transfer belt 4 lifts the seal belt 3 so that the load can be transferred while the seal belt 3 is still mounted, so that the chute enters the opening of the conveyor cover 2. As shown in FIGS. 3 and 4, the transfer car 4 moves together with the chute on rails 14 installed on both sides of the conveyor cover 2, and the four guide rolls 15 provided on the transfer car 4 seal the belt. Lifting three. In addition, the bottom surface of the transfer car 4 is open only in the insertion port portion below the chute.

Since the seal belt 3 is only placed on the upper portion of the conveyor cover 2, there is a possibility that the seal belt 3 may be rolled up when a strong wind or a gust of wind blows. Therefore, as shown in FIG. 4, the pressing bar is horizontally rotatably supported by a hinge provided on one side of the upper portion of the conveyor cover 2 on both sides of the seal belt 3 and the pin is inserted into the other end. The pressure bar is locked so that the seal belt 3 is pressed.

Incidentally, the above-mentioned two belt conveyors 1 are generally provided side by side, and the loads are transferred alternately, but only one of them is shown in FIGS. 3 and 4. .

[0006]

However, although the above-mentioned pressing bar is always locked outside the transfer range of movement of the transfer car, when the load is transferred within the moving range of the transfer car, it is pressed. The lock of the bar is unlocked and rotated to avoid it from above the seal belt.
Therefore, if a strong wind or a gust of wind blows while the load is being transferred, the worker must ride on the seal belt and rotate the holding bar to lock it. This work is performed when the weather is bad, such as when the wind is strong, and since it is urgent, it requires manpower and emergency response is difficult.
Furthermore, when the pressure bar is locked, the transfer bar cannot move because the pressure bar interferes with the transfer bar.Therefore, the load transfer work must be interrupted, and when the weather recovers, the pressure bar must be avoided. I have to. Therefore, when the weather is bad, you must repeat the work of locking the pressure bar and the work of avoiding it.
There was a problem that the transfer efficiency of the cargo was significantly reduced.

The present invention was created to solve the above problems. That is, it is an object of the present invention to provide a seal belt device capable of preventing the seal belt from being rolled up and improving the dustproof property without performing the locking work and the avoidance work of the pressing bar.

[0008]

According to the present invention, a conveyor cover that surrounds the periphery of a belt conveyor and has an open upper portion, a seal belt placed on the opening, and a chute for unloading a load on the belt conveyor. A transfer belt that moves the conveyor belt with the chute so that the seal belt is lifted above the opening of the conveyor cover, and the transfer belt is provided above the conveyor cover. And a seal belt pressing device that rotatably supports a pressing bar that is horizontally extended and that urges the pressing bar in a direction intersecting the traveling direction of the belt conveyor,
There is provided a seal belt device, comprising: a guide provided on the transfer car to smoothly push and guide the pressing bar.

According to the embodiment of the present invention, the seal belt pressing device includes a pedestal provided on the conveyor belt on both sides of the seal belt, and a shaft fixed to the pedestal and extending in the vertical direction. , A cylindrical boss that is rotatably fitted to the shaft, a pressing bar that is fixed to the boss and extends horizontally on the seal belt, and a direction that intersects the pressing bar with the traveling direction of the belt conveyor. And a spring mechanism for urging the spring.

Further, according to the embodiment of the present invention, the spring mechanism is located above the presser bar and has one end cut out from the boss by a rotation range of the presser bar in one direction. The upper coil spring that is stopped and the other end is locked to the casing of the seal belt pressing device, and one end is cut out below the pressing bar in the other direction of the pressing bar to the boss. Locked in part,
It is preferable that the other end includes a lower coil spring that is locked in the casing of the seal belt pressing device, and that the lower coil spring and the upper coil spring are coiled in opposite windings.

According to the above-described structure of the present invention, the pressing bar extending horizontally on the seal belt is rotatably provided above the conveyor cover on both sides of the sealing belt, and the pressing bar has a spring mechanism. Since it is urged in the direction intersecting the traveling direction of the belt conveyor by the movement of the transfer car, the pressing bar is pushed away and rotated,
When the transfer car passes by, it returns to its original position. That is, the seal belt is pressed by the pressing bar in the absence of the transfer car, and the movement of the transfer car is not hindered by the pressing bar. Therefore, it is not necessary to perform the locking work and the avoiding work of the presser bar, the dust can be prevented regardless of the weather, and the load can be transferred.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS. In each of the drawings, the same reference numerals are given to portions common to the related art, and description thereof is omitted.

FIG. 1 is a plan view of the seal belt device of the present invention. The seal belt device shown in the figure has a seal belt pressing device 5 having a pressing bar 9, and a guide 13 provided on the transfer car 4 for smoothly pushing and guiding the pressing bar 9. The seal belt pressing device 5 is provided on the conveyor cover 2 in parallel so as to face each other with the seal belt 3 interposed therebetween, and the pressing bar 9 is rotatably supported and is mounted on the seal belt 3. It extends horizontally and is urged in a direction intersecting the traveling direction of the belt conveyor 1. Further, as shown in FIG. 1, it is preferable to provide a plurality of seal belt pressing devices 5 in the advancing direction of the belt conveyor at substantially the same intervals as in the conventional pressing bar, but the shape of the pressing bar 9 and the strength of the device, etc. The interval can be freely changed depending on the condition of. Further, although not shown, the seal belt pressing devices 5 may be provided alternately (zigzag) without facing each other with the seal belt 3 interposed therebetween.

2A and 2B are detailed views showing the seal belt pressing device 5. FIG. 2A is a sectional view thereof, and FIG. 2B is FIG. 2A.
FIG. In addition, in FIG.
The spring is shaded. The seal belt pressing device 5 includes a pedestal 6 provided on the conveyor belt 2 on both sides of the seal belt 3, a shaft 7 fixed to the pedestal 6 and extending in the vertical direction, and rotatably fitted to the shaft 7. A cylindrical boss 8, a pressing bar 9 fixed to the boss 8 and extending horizontally on the seal belt 3, and a spring for urging the pressing bar 9 in a direction intersecting the traveling direction of the belt conveyor 1. It is composed of a mechanism and a casing 16 which is opened only in the rotation range of the pressing bar 9. The shaft 7 may be formed integrally with the pedestal 6.

The spring mechanism has an upper coil spring 11 having an upper end locked to the notch 8k of the boss 8 and a lower end locked to the casing 16 of the seal belt pressing device 5 above the pressing bar 9. , Below the pressure bar 9,
The lower coil spring 12 has a lower end locked to the cutout portion 8k of the boss 8 and an upper end locked to the casing 16 of the seal belt pressing device 5.
2 and the upper coil spring 11 are coil springs wound in opposite directions. As shown in FIG. 2A, the outer diameters of both ends of the boss 8 are small, and the upper coil spring 11 and the lower coil spring 12 are loosely inserted therein. Note that FIG.
In (B), the upper coil spring 11 is right-handed when the transferer 4 travels in the upward direction of the paper (the direction of the arrow in the drawing). Therefore, although not shown, the lower coil spring 12 is left-handed.

Further, the notch 8k of the boss 8 (see FIG. 2)
2B, the both ends of the boss 8 are cut out by at least the rotation range of the presser bar 9, and the upper coil spring 11 has the presser bar 9 counterclockwise in FIG. 2B. The step portion of the cutout portion 8k is locked so as to pull the strand of the upper coil spring 11 when it is rotated to the lower side, and the lower coil spring 12 is not shown in the drawing, but the pressing bar 9 is rotated clockwise. The step portion of the cutout portion 8k is locked so as to pull the strand of the lower coil spring 12 when it is turned to. Therefore, when the presser bar 9 rotates counterclockwise, the lower end of the lower coil spring 12 slides on the notch 8k without being pulled by the stepped part of the notch 8k, and the presser bar 9 moves clockwise. When turned around, the upper end of the upper coil spring 11 slides on the notch 8k without being pulled by the stepped portion of the notch 8k.

The casing 16 is composed of a body portion 17 connected to the flange portion of the pedestal 6 by bolts and nuts, and a lid portion 18 connected to the flange portion of the body portion 17 and bolts and nuts. A part of the peripheral wall of the body portion 17 is cut out at least for the rotation range of the pressing bar 9, and a hole is formed at a position where the upper end of the lower coil spring 12 is locked. A hole is formed in the lower end of the lid 18 at a position where the lower end of the upper coil spring 11 is locked. A reinforcing member 19 is provided between the upper portion of the conveyor cover 2 and the lower surface of the flange portion of the pedestal 6, between the flange portions of the body portion, and between the lid side surface and the flange portion.

As shown in FIG. 1, the guides 13 are provided on both inner sides of the wheels 20 of the transfer car 4, and have, for example, a boat shape. The wheels 20 of the transfer car 4 straddle the seal belt pressing device 5.

Next, the operation of the seal belt device of the present invention will be described with reference to FIGS. 1 and 2B. In these figures, the transfer car 4 is assumed to move in the direction of the arrow in the figures, that is, from left to right in FIG. 1, and from bottom to top in FIG. 2B.

When the transfer car 4 shown in FIG. 1 passes through the seal belt pressing device 5, the guide 13 of the transfer car 4 pushes the pressing bar 9 away in its moving direction, and the boss 8 shown in FIG. Rotate around. Then, only the upper coil spring 11 has the cutout portion 8k.
It is pulled by and is stretched in the winding direction, so that a restoring force is generated, and the force acts in the direction in which the pressing bar 9 is pushed back. Therefore, if the transfer bar 4 moves and passes while the guide bar 9 is in contact with the guide 13, the press bar 9 returns to its original position, and the original function of the seal belt 3 as the press bar 9 is exhibited. To do.

When the transfer car 4 moves in the direction opposite to that shown in FIGS. 1 and 2B, only the lower coil spring 12 is pulled by the cutout portion 8k and extends in the winding direction, so that the restoring force is exerted. Occurs, and a force acts in a direction in which the pressing bar 9 is pushed back. Therefore, in this case as well, if the transfer car 4 passes, the pressing bar 9
Returns to the original position and exhibits the original function as the pressing bar 9 of the seal belt 3.

Therefore, the seal belt 3 is pressed by the pressing bar 9 without the transfer car 4, and the pressing bar 9 does not hinder the movement of the transfer car 4.

The present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

[0024]

According to the above-described seal belt device of the present invention, a seal belt pressing device having a pressing bar is provided on the upper side of the conveyor cover on both sides of the sealing belt, and the pressing bar is rotatably provided. When the transfer car is moved by extending it horizontally on the belt and urging it in a direction that intersects with the traveling direction of the belt conveyor, the pressing bar is pushed away and rotates following the guide of the transfer car. , When the transfer car passes by, it returns to its original position and exhibits its original function as a pressure bar for the seal belt. Therefore, it is not necessary to perform the locking work and the avoidance work of the presser bar as in the conventional case.

That is, the seal belt can be prevented from being rolled up to improve the dustproof property, the load can be transferred regardless of the weather, the manpower can be reduced, and the working time can be shortened. It has excellent effects such as.

[Brief description of drawings]

FIG. 1 is a plan view of a seal belt device of the present invention.

2A and 2B are detailed views showing the seal belt pressing device 5, in which FIG. 2A is a cross-sectional view thereof, and FIG. 2B is a view taken in the direction of arrow B in FIG. 2A.

FIG. 3 is a side view of a conventional seal belt device.

FIG. 4 is a view taken in the direction of arrow A in FIG. 3;

[Explanation of symbols]

 1 Belt Conveyor 2 Conveyor Cover 3 Seal Belt 4 Transfer Car 5 Seal Belt Pressing Device 6 Pedestal 7 Shaft 8 Boss 8k Cutout 9 Pressing Bar 11 Upper Coil Spring 12 Lower Coil Spring 13 Guide 14 Rail 15 Guide Roll 16 Casing 17 Casing Body part 18 Casing lid part 19 Reinforcement material 20 Wheels

Claims (3)

[Claims] 1. A conveyor cover that surrounds a belt conveyor and has an open top, a seal belt placed on the opening, and a chute for unloading the belt conveyor enter the opening of the conveyor cover. In this way, in a seal belt device consisting of a transfer car that lifts the seal belt and moves on the conveyor cover together with its chute, a pressing bar that is provided above the conveyor cover and extends horizontally on the seal belt. A seal belt pressing device that rotatably supports the pressing bar and urges the pressing bar in a direction intersecting the traveling direction of the belt conveyor, and a guide that is provided on the transfer car and smoothly pushes and guides the pressing bar. A seal belt device comprising: 2. The seal belt pressing device comprises a pedestal provided on the conveyor belt on both sides of the seal belt, and a shaft fixed to the pedestal and extending in the vertical direction.
A cylindrical boss that is rotatably fitted to the shaft, a pressing bar that is fixed to the boss and extends horizontally on the seal belt, and the pressing bar in a direction that intersects the traveling direction of the belt conveyor. The seal belt device according to claim 1, comprising a spring mechanism for urging. 3. The spring mechanism, above the pressing bar, has one end engaged with the boss at a portion notched by a rotation range in one direction of the pressing bar and the other end at the seal belt pressing member. The upper coil spring locked to the casing of the device and one end of the upper part of the presser bar below the presser bar, the end being locked to the boss notched by the turning range of the presser bar in the other direction. A lower coil spring locked to the casing of the seal belt pressing device,
The seal belt device according to claim 1 or 2, wherein the lower coil spring and the upper coil spring are coil springs wound in opposite directions.