JPH07309418A - Conveyor belt having bucket - Google Patents

Abstract

PURPOSE:To provide a hardly deforming, hardly buckling and long service life conveyor belt having buckets by embedding reinforcing steel cords at proper intervals in the lateral direction and the lengthwise direction on both upper and lower sides of tensile strength core bodies embedded in a thickness directional almost center part, and arranging the buckets inside in the carrying direction. CONSTITUTION:Tensile strength core bodies 9 composed of Aramid fiber are embedded in the lengthwise direction in a lengthwise directional almost center part of a belt 8 composed of a raw material to constitute a belt body, for example, synthetic rubber. Reinforcing steel cords 10 are embedded at regular intervals in the lateral direction and the lengthwise direction on both upper and lower sides sandwiching the core bodies 9. A required conveyor belt having buckets is constituted by installing the bucket 2 inside in the carrying direction of such belt 8 by fastening of a bolt 11. Since such conveyor belt has rigidity in the belt lateral direction and constant tensile force is applied in the lengthwise direction, excellent resistance to deformation and buckling can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor belt with a bucket.

[0002]

2. Description of the Related Art Conventionally, a conveyor belt with a bucket, in which a bucket is attached to a belt conveyor, when a conveyed article is conveyed along a curved path in a vertical plane in a vertical direction and a horizontal direction. Is widely used.

As shown in FIG. 4, this conveyor belt with a bucket is constructed so that a conveyed article 3 is conveyed by a belt 1 in a horizontal portion H and a bucket 2 mounted outside in a conveying direction in a vertical portion V. It was done. By the way, when the conveyed article is conveyed by the conveyor belt with bucket, the belt 1 supports the weight of the bucket 2 and the conveyed article 3 in the vertical portion V, so that the belt 1 is bent and the bucket 2 is It may tilt and come into contact with the casing 4 and be damaged. Therefore, it is necessary to adopt a structure that imparts strength not only in the length direction but also in the width direction and prevents the belt from being deformed in the vertical path. Further, since the bucket 2 in FIG. 4 is provided on the outer side in the transport direction, the bucket 2 may damage the transported object. For this reason, in recent years, as shown in FIG. 3, the bucket 2 has been used inwardly in the transport direction. In this case, since the conveyed goods input from the input port 5 are first received by the belt 1, the possibility of damage to the conveyed goods is reduced, but as described above, the belt has a predetermined strength to prevent deformation. It is necessary to adopt a structure that gives. In this regard, conventionally, a method of increasing the number of plies of the core body to improve the rigidity has been widely used. For example,
As shown in FIG. 5, a tensile strength core body 6 having 5 plies is used. In this case, the belt 1 inevitably becomes thick, and as a result of being repeatedly bent by the pulley 7 (see FIG. 4), the belt 1 is likely to buckle.

The present invention has been made in view of the above problems of the prior art, and an object thereof is to provide a long-life bucket conveyor belt having a structure that does not easily deform and buckles. To do.

[0005]

In order to achieve the above-mentioned object, the present invention is to embed a tensile strength core body along the length direction at a substantially central portion in the thickness direction, and to arrange either or both upper and lower sides of the core body. A conveyor belt with a bucket, characterized in that reinforcing steel cords are embedded along the width direction and in the length direction at appropriate intervals on one side, and have a bucket on the inner side in the conveying direction, A conveyor belt with a bucket according to the first invention is characterized in that the reinforcing steel cords are embedded at equal intervals.

[0006]

The reinforcing steel cords are embedded along the width direction and at appropriate intervals in the length direction on the upper and lower sides or on one side of the core, so that the core body has an appropriate rigidity in the width direction. However, a constant tension is applied in the length direction. As described above, since the strength receiving section is shared by the core body and the reinforcing steel cord, the belt is hard to be deformed and the belt can be made thin. Furthermore, by making the embedding intervals in the length direction of the steel cords equal, it is possible to impart uniform strength in the width direction to any portion in the length direction.

[0007]

EXAMPLES Examples of the present invention will be described below.

In FIG. 1, a tensile strength core body 9 made of aramid fiber is provided at a substantially central portion of a belt 8 made of a material constituting a belt body, for example, a synthetic rubber, in a thickness direction (direction indicated by an arrow T) in a length direction (arrow). The reinforcing steel cords 10 (having a diameter of 1.2 mm) are embedded along the width direction (indicated by the arrow L direction) and are sandwiched between the core body 9 along the width direction (the W direction). They are embedded at equal intervals (2.5 mm).
The material of the core body 9 may be vinylon, polyester fiber, or the like. The steel cord 10 is preferably as thick as possible in order to impart rigidity to the belt in the width direction, but its diameter varies depending on the thickness and width of the belt and is preferably 0.5 mm or more for practical use. On the other hand, in order to have appropriate flexibility, the thickness is preferably 6.0 mm or less.

Further, in order to increase the rigidity of the steel cord 10, it is preferable that the distance d ₁ in the lengthwise direction thereof is as narrow as possible, and further, the distance d ₂ between the steel cords 10 facing each other with the core body 9 sandwiched therebetween. It is particularly preferable that d ₁ ≦ d ₂ in consideration of the relationship of

Further, as shown in FIG. 1 (b), when the bucket 2 is fastened with the bolts 11 in order to mount the bucket 2 on the inner side in the conveying direction of the belt, stress concentration may occur at this portion. In order to reduce this stress concentration, it is better that the distance d ₁ between the steel cords 10 is shorter,
If the distance d ₁ is too short and too close to the bolt 11, that portion becomes weak, which is not preferable. Therefore, practically, d ₁ is preferably 2.0 mm or more.

Although the reinforcing steel cords 10 are provided on both sides of the tensile strength core body 9 in this embodiment, they may be provided on only one side depending on the required rigidity value.

Further, the steel cord 10 can be embedded obliquely with respect to the length direction of the belt 8 instead of the width direction (direction orthogonal to the length direction).

FIG. 2 shows an embodiment in which the tensile strength core body 9 made of the aramid fiber in FIG. 1 is a steel cord 12.

[0014]

As described above, according to the present invention, a tensile strength core is embedded in the length direction, and reinforcing steel cords are embedded in the width direction along the width direction of the belt and at regular intervals in the length direction. Therefore, the belt has rigidity in the width direction and a constant tension is applied in the length direction. Therefore, it is unlikely to be deformed, and the overall thickness can be reduced, so that buckling is less likely to occur.

[Brief description of drawings]

FIG. 1 (a) is a sectional view in the width direction of a conveyor belt with bucket according to the present invention, and FIG. 1 (b) is a sectional view in the length direction.

2A and 2B are views showing another embodiment of the present invention, FIG. 2A is a cross-sectional view in the width direction, and FIG. 2B is a cross-sectional view in the length direction.

FIG. 3 is a side view of a conveyor with an inner bucket.

FIG. 4 is a side view of a conventional bucket conveyor.

FIG. 5 is a sectional view of a conventional conveyor belt with bucket.

[Explanation of symbols]

 1 ... Belt 2 ... Bucket 3 ... Conveyed goods 4 ... Casing 5 ... Input port 6 ... Tensile strength core 7 ... Pulley 8 ... Belt 9 ... Tensile strength core 10 ... Steel cord 11 ... Bolt 12 ... Steel cord

Claims (2)

[Claims] 1. A tensile strength core body is embedded along the length direction at a substantially central portion in the thickness direction, and reinforcing steel cords are provided along the width direction on both upper and lower sides or one side of the core body. A conveyor belt with a bucket, wherein the conveyor belt is embedded in the length direction at appropriate intervals and has a bucket on the inner side in the conveyance direction. 2. The conveyor belt with bucket according to claim 1, wherein the reinforcing steel cords are embedded at equal intervals.