JPH08231057A - Load drop prevention device of belt conveyer - Google Patents

Abstract

PURPOSE: To prevent any load drop from both sides of a load receiving part. CONSTITUTION: A skirt 8 is arranged on the both side positions of the load receiving part 1a of a belt conveyer 1. Plural impact rollers consisting of left/ right slanting rollers 7a and a central horizontal roller are arranged in the back surface side of the load receiving part 1a. An endless auxiliary belt 13 is hung over between the slanting rollers 7a positioned on the uper stream side end part and lower stream side end part of the left/right rows. Such state is formed that the auxiliary belt 13 is brought in contact with the load receiving part 1a, the rigidity of a conveyer belt 3 positioned on the load receiving part 1a is raised up and a clearance between the skirt 8 and the conveyer belt 3 is not generated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a load spill prevention device for a belt conveyor used for carrying bulk goods such as coal.

[0002]

2. Description of the Related Art As shown in FIGS. 6 and 7, a belt conveyor 1 which is one of continuous conveying machines has an endless wide conveyor belt 3 between belt wheels 2a and 2b at both ends. And the back side of the conveyor belt 3 on the feed side is supported by guide rollers 4 arranged at appropriate intervals, and the conveyor belt 3 is moved so that the load placed on the conveyor belt 3 is conveyed. is there.

Among the above-mentioned belt conveyors, for example, in a belt conveyor configured to receive and convey a bulk material 6 such as coal dropped from an upper position via a chute 5, a load receiving portion for receiving the falling bulk material 6 1a receives the back side of the conveyor belt 3 and the left and right tilt rollers 7a and the central horizontal roller 7b in order to withstand the impact when the bulk is dropped.
A plurality of impact rollers 7 forming a set are arranged at small intervals along the belt moving direction (arrow X direction), and both left and right sides from the load receiving portion 1a of the belt conveyor 1 to a slightly downstream side. The rubber skirts 8 are arranged at positions, the left and right skirts 8 are attached and fixed to a support plate 11 supported by a conveyor frame 9 via brackets 10, and the left and right skirts 9 support the load receiving portion 1a.
It is designed to prevent spills from both sides of the.
Reference numeral 12 is a skirt cover plate that integrates the left and right support plates 11.

[0004]

However, even if the impact roller 7 is used, a gap is generated between the conveyor belt 3 and the skirt 8 due to the momentum of the bulk load 6 falling from the chute 5, and the bulk load from the gap. There is a problem that 6 leaks out and stains the vicinity as shown by arrow A.

In order to prevent a gap from being formed between the conveyor belt 3 and the skirt 8, the impact roller 7
It is conceivable to narrow the arrangement pitch of the above. However, in this case, there is a structural limit and the rigidity of the conveyor belt 3 is also limited, so that the above-mentioned gap cannot be completely closed, and therefore the load receiving portion In reality, it is impossible to completely prevent spillage from 1a.

Therefore, the present invention is to provide a load spill prevention device for a belt conveyor which can effectively prevent a load spill from the load receiving portion.

[0007]

In order to solve the above-mentioned problems, the present invention has skirts arranged at both side positions of the load receiving portion, and the load receiving portion is provided with left and right inclined rollers and a central horizontal roller. A plurality of impact rollers forming one set are arranged along the moving direction of the conveyor belt, and the impact belt is adapted to move on the impact roller. Endless auxiliary belts are respectively wound around the left and right inclined rollers of the impact roller at the most upstream side position in the moving direction and the impact roller at the most downstream side position, and the auxiliary belt is brought into contact with the back surface of the conveyor belt. It has a different configuration.

Further, skirts are arranged at both side positions of the load receiving portion, and impact rollers forming a set of left and right inclined rollers and a central horizontal roller are arranged along the moving direction of the conveyor belt in the load receiving portion. A plurality of skirts, which are arranged on both sides of the load receiving portion in a belt conveyor in which a conveyor belt can be moved on the impact roller, are divided into a plurality of small skirt pieces, and The small skirt pieces are overlapped with each other at a required interval and arranged as an inward inclination toward the moving direction of the conveyor belt.

[0009]

The rigidity of the conveyor belt is enhanced in the load receiving section by winding the auxiliary belt around the left and right inclined rollers of the impact roller and bringing the auxiliary belt into contact with the back surface of the conveyor belt located in the load receiving section. ,
A gap is less likely to be formed between the skirt and the conveyor belt, and spillage of the load from both sides of the load receiving portion is prevented.

Further, when a large number of small skirt pieces are arranged on both sides of the load receiving portion so as to overlap with each other in the inward inclination toward the belt moving direction, a centripetal force may be applied to the bulk load in contact with the skirt pieces. It is possible to prevent bulk cargo from leaking out.

[0011]

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

FIGS. 1 and 2 show an embodiment of the present invention. As in the case shown in FIGS. 6 and 7, skirts 8 are arranged at both side positions of the load receiving portion 1a, and the load receiving portion 1a is provided.
In addition, a plurality of impact rollers 7 which are a set of the left and right inclined rollers 7a and the central horizontal roller 7b are arranged along the belt moving direction (the arrow X direction).
In the belt conveyor 1 configured to receive the conveyor belt 3 in the above, the left and right inclined rollers 7a of the impact roller 7 located on the most upstream side in the belt moving direction among the plurality of impact rollers 7 and the most downstream side. The endless auxiliary belts 13 are separately wound around the left and right inclined rollers 7a of the impact roller 7 located respectively, and the auxiliary belts 13 are brought into contact with the back surface of the conveyor belt 3 to form the load receiving portion 1a. The conveyor belt 3 is reinforced with.

In the present invention, since both side positions of the conveyor belt 3 in the load receiving portion 1a of the belt conveyor 1 are reinforced by the impact roller 7 and the auxiliary belt 13, the load receiving portion 1a is provided between the conveyor belt 3 and the skirt 8. Since a gap is unlikely to occur in the area, spillage of goods is prevented.
That is, the position of the load receiving portion 1a of the belt conveyor 1 is determined by the presence of the plurality of impact rollers 7 including the left and right inclined rollers 7a and the central horizontal roller 7b, as in the conventional case. However, in the present invention, the tilt rollers 7 arranged in the left and right positions are further provided.
Since the endless auxiliary belt 13 is looped around a, and the auxiliary belt 13 is pressed against both sides of the back surface of the conveyor belt 3 by the load receiving portion 1a, the conveyor belt 3 The rigidity of the load receiving portion 1a can be increased. Therefore, even if the bulk load 6 drops vigorously on the load receiving portion 1a, it is possible to make it difficult to form a gap between the conveyor belt 3 and the skirt 8. Therefore, as shown by an arrow B in FIG. 6 does not pass between the conveyor belt 3 and the skirt 8 and can prevent spillage.

Next, FIGS. 3 and 4 show another embodiment of the present invention. In a belt conveyor having the same structure as shown in FIGS. 6 and 7, the belt conveyors are arranged at both side positions of the load receiving portion 1a. The skirt 8 is divided into a large number of small skirt pieces 8a, the skirt pieces 8a are overlapped with each other at a required interval, and are arranged as an inward inclination toward the belt moving direction. 8a is supported by the conveyor frame 9 via the divided support plate 11a and the bracket 10.

In the case of the embodiment shown in FIGS. 3 and 4, since each skirt piece 8a is inclined inward toward the belt moving direction, a centripetal force (conveyor) is applied to the bulk load 6 contacting the skirt piece 8a. It is possible to apply a force toward the center, whereby bulk goods 6 are carried while being gathered toward the center of the conveyor, so that leakage from both sides is prevented. Even if the bulk goods 6 pass through the gap formed between the skirt piece 8a and the conveyor belt 3, since the skirt pieces 8a overlap each other, the bulk goods 6 pass under one skirt piece 8a. The load 6 is dammed by the outer skirt piece 8a as shown by the arrow C, and the above-mentioned centripetal force is applied, so that the load spillage from both sides is prevented. Furthermore, since each of the skirt pieces 8a is in a stationary state and the conveyor belt 3 is moving, it is possible to expect an inflow effect of a blank inflow to push the bulk load 6 toward the conveyor center side from between the skirt pieces 8a. it can. Furthermore, each skirt piece 8a has an advantage that it can be replaced as a single item in the case of damage.

FIG. 5 shows still another embodiment of the present invention, which is a combination of the embodiments shown in FIGS. 1 to 3 and the embodiments shown in FIGS. 4 and 5. That is, of the impact rollers 7 arranged in the load receiving portion 1a of the belt conveyor 1, the auxiliary belt 13 is wound around each of the inclined rollers 7a located in the left and right rows, and a large number of skirts are provided at both side positions on the load receiving portion 1a. A skirt 8 formed by stacking the pieces 8a and arranging them in an inclined manner is provided.

In the case of the embodiment of FIG. 5, the auxiliary belt 13
The effect of increasing the rigidity of the conveyor belt 3 due to the above and the effect of giving a centripetal force to the bulk load 6 by each skirt piece 8a are further advantageous, which is further advantageous.

[0018]

As described above, the load spill prevention device for a belt conveyor according to the present invention exhibits the following excellent effects. (1) A skirt is arranged on both sides of the load receiving portion of the belt conveyor, and impact rollers are arranged on the back side of the belt of the load receiving portion of the belt conveyor, and the left and right sides of the impact rollers corresponding to both sides of the load receiving portion are arranged. Since the endless auxiliary belts are respectively wound around the inclined rollers of the row and brought into contact with the load receiving portion, it is possible to increase the rigidity of the conveyor belt at the load receiving portion position. Even if it falls, no gap is created between the skirt and the conveyor belt, and it is possible to effectively prevent the load from spilling from both sides of the load receiving portion through the gap. (2) A large number of small skirt pieces are arranged at both sides of the load receiving part of the belt conveyor so that the small skirt pieces are arranged so as to overlap with each other at an inward inclination toward the belt moving direction at a required interval. Since a centripetal force can be applied to the bulk load in contact with the bulk load, leakage of the bulk load from both sides of the load receiving portion can be prevented.

[Brief description of drawings]

FIG. 1 is a schematic side view showing an embodiment of a load spill prevention device for a belt conveyor according to the present invention.

2 is a II-II enlarged arrow view of FIG. 1. FIG.

FIG. 3 is a schematic side view showing another embodiment of the present invention.

FIG. 4 is an enlarged view of IV-IV in FIG.

FIG. 5 is a schematic side view showing still another embodiment of the present invention.

FIG. 6 is a schematic side view showing an example of a conventional belt conveyor.

7 is a VII-VII enlarged arrow view of FIG.

[Explanation of symbols]

 1 Belt Conveyor 1a Cargo Receiver 3 Conveyor Belt 7 Impact Roller 7a Inclined Roller 7b Horizontal Roller 8 Skirt 8a Skirt Piece 13 Auxiliary Belt

Claims (2)

[Claims] 1. A skirt is arranged at both side positions of the load receiving portion, and impact rollers forming a set of left and right inclined rollers and a central horizontal roller are arranged in the load receiving portion along the moving direction of the conveyor belt. Among the impact rollers in the belt conveyor in which a plurality of the impact rollers are arranged so that the conveyor belt can be moved over the impact rollers, the impact roller at the most upstream side and the most downstream position in the moving direction of the conveyor belt An endless auxiliary belt is wound around each of the left and right inclined rollers of the impact roller, and the auxiliary belt is brought into contact with the back surface of the conveyor belt. . 2. The skirts are arranged at both side positions of the load receiving portion, and the impact receiving roller forming a set of left and right inclined rollers and a central horizontal roller is arranged along the moving direction of the conveyor belt in the load receiving portion. A plurality of skirts, which are arranged on both sides of the load receiving portion in a belt conveyor in which a conveyor belt can be moved on the impact roller, are divided into a plurality of small skirt pieces, and An apparatus for preventing spillage of a belt conveyor, characterized in that small skirt pieces are superposed at required intervals and are arranged as an inward inclination toward the moving direction of the conveyor belt.