JP2006306613A - Meandering prevention conveyer belt - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safe and low-cost meandering prevention conveyor belt to be used for a long time without wasting conveying energy and without providing a belt stopper on a side of a rotating roller by automatically eliminating lateral displacement of the belt during conveying operation to return the belt to the center even in the case wherein bias-conveyance of the conveyed material is caused, and capable of avoiding a fall of the conveyed material. <P>SOLUTION: The rotating rollers for supporting the conveyed belt 2 and provided with an interval in the conveying direction are respectively formed of at least two rollers 3 and 3 provided in a direction crossing the conveying direction, and diameter of the two rollers 3 and 3 is formed into a truncated cone shape so as to be enlarged from the center part to the ends. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a meander-preventing conveyor belt that can stably convey an object to be conveyed without meandering.

  As shown in FIG. 3, the conventional conveyor belt 1 'is composed of a conveying belt 2' and three rotating rollers 3 'that support the belt 2' from below. The rotating roller 2 'has a uniform diameter. Because of the cylindrical shape, if the transported object is slightly biased, a lateral displacement occurs during transporting, and the transporting belt 2 'and the transported object deviate from the rotating roller 2'. There was a risk of the transported items falling.

  Therefore, as shown in FIG. 3, a belt stopper 5 is provided on the side of the rotating roller to prevent excessive lateral displacement. However, this stopper 5 is merely in pressure contact with the side edge of the belt to avoid excessive lateral misalignment and lacks the effect of returning the belt to the center. Not only was the energy wasted, but the belt was damaged quickly, and the object to be transported dropped due to impact during contact.

  In view of the present situation, the present invention automatically eliminates the lateral deviation during conveyance and returns the belt to the center even if the conveyance object is slightly biased, so that the side portion of the rotating roller Without using a belt stopper, the belt can be used for a long period of time without wasting transport energy. It is for the purpose of provision.

  The present invention achieves the above object, and the invention according to claim 1 is characterized in that a rotating roller that supports a conveying belt and is disposed at intervals in the conveying direction is installed in a direction orthogonal to the conveying direction. The meander-preventing conveyer belt is formed of at least two rollers and is formed in a truncated cone shape so that the diameters of the two rollers increase from the center toward the end. It is.

  According to a second aspect of the present invention, the two rotating rollers are installed such that their rotation shafts are inclined upward from the central portion toward the end portion, respectively. It is a prevention conveyor belt.

  The invention according to claim 3 is the meander-preventing conveyor belt according to claim 1, wherein a roller having a uniform diameter is horizontally disposed between the two rotating rollers.

  According to the present invention, even when the transported object is slightly biased, it is possible to automatically eliminate the lateral misalignment during transport and return the belt to the center. It is no longer necessary to install a belt stopper on the side of the belt, which eliminates wasteful use of transport energy due to contact with the stopper, enabling the belt to be used for a long period of time, and prevents the transported object from falling due to impact. Therefore, it is possible to avoid this problem and to carry it safely and to carry it.

Hereinafter, the present invention will be described in detail with reference to the drawings which are embodiments thereof.
1 and 2, reference numeral 1 denotes a meander-preventing conveyor belt according to the present invention. The meander-preventing conveyor belt 1 includes a transport belt 2, two rotating rollers (side rollers) 3, 3, and a center roller 4. It is mainly formed.

  The conveyor belt 2 is a durable endless belt that can carry a variety of shapes such as sand, earth, crushed stone, gravel, ore, and grains, as well as various types of objects to be conveyed on the top. It may be made of material. A width of 40 to 180 cm is preferably used, but is not limited thereto.

  The two rotating rollers 3 and 3 support the conveying belt 2 from below and are spaced from each other in the conveying direction, and place the object to be conveyed to convey the conveying belt 2 to a desired place. Is. The rotating rollers 3 and 3 may be supported from above or below in the return state of the conveying belt 2. The rotating rollers 3 and 3 are rollers rotatably installed on bearings provided on a plurality of fixed and standing stands, and may be either a driving roller or a driven roller. There are more. The interval set in the transport direction is preferably 100 to 120 cm, but is not limited to this and may be various intervals.

  As shown in the figure, the two rotating rollers 3 and 3 are each formed in a truncated cone shape so as to have a large diameter from the central portion toward the end portion, and are symmetrical in a direction perpendicular to the conveying direction. is set up. For this reason, since the central portion side of the rotating roller has a small diameter, the surface speed of the rotating roller is small, while the end portion side of the rotating roller has a large diameter, the surface speed of the rotating roller is large, and therefore the rotating roller rotates. The conveying belt 2 is applied with a conveying force from the end portion side where the speed is high toward the central portion side where the rotational speed is low. However, since the two rotating rollers 3 and 3 are installed symmetrically, the conveying force from both of them is balanced with the central portion as the center, and the conveying belt 2 is conveyed forward, and the meandering prevention effect is exhibited. It becomes.

  The two rotating rollers 3 and 3 are installed so that their rotation axes are inclined upward from the central portion toward the end portion, so that they are conveyed from both the rotating rollers 3 and 3 described above. The forces are balanced, and the conveying belt 2 is conveyed forward, and a further meandering prevention effect is exhibited. The inclination angle (trough angle) can be various angles, and is preferably 20 to 60 degrees. An inclination angle of 20 degrees is desirable for a conveyed object having a relatively low specific gravity, an inclined angle of 30 degrees is desirable for an object having a specific gravity, and a conveyed object having a large specific gravity. In this case, an inclination angle of 45 degrees is desirable. In special cases, an inclination angle of 60 degrees is adopted.

  In the center roller 4, a roller having a uniform diameter is horizontally disposed between the two rotating rollers 3 and 3, and stably supports the load of the conveyed object.

  The return roller of the conveying belt 2 may be the same as the above carrier roller or a conventional carrier roller, and the installation interval is preferably wider than the installation interval of the carrier roller. However, it is not limited to this.

  It is a front view which shows the Example of the meander prevention conveyor belt of this invention.   It is a perspective view which shows the Example of the rotating roller which comprises the meander prevention conveyor belt of this invention.   It is a side view of the conventional meander prevention conveyor belt.

Explanation of symbols

1 Conveying belt 2 Conveying belt 3 Rotating roller 4 Center roller 5 Stopper

Claims (3)

  The rotating rollers that support the conveying belt and are spaced apart in the conveying direction are formed by at least two rollers that are arranged in a direction perpendicular to the conveying direction, and the diameters of the two rollers are respectively set in the center. A meander-preventing conveyor belt, which is formed in a truncated cone shape so as to have a larger diameter from the portion toward the end portion.   2. The meander-preventing conveyor belt according to claim 1, wherein the two rotation rollers are installed such that their rotation shafts are inclined upward from the center toward the end.   2. The meander-preventing conveyor belt according to claim 1, wherein a roller having a uniform diameter is horizontally disposed between the two rotating rollers.

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