JP2753856B2 - Belt conveyor device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a belt conveyor device used for transporting a large amount of granular material such as grain.

(Conventional technology) Conventionally, a belt conveyor has been used for transporting grains and the like, and both edges of the belt are provided in a gutter-like shape so that grains do not fall down from the side edges of the belt. I was

(Problems to be Solved by the Invention) However, in the conventional apparatus, there is a limit to the height of the side edge of the belt, so that a large amount of conveyed articles cannot be conveyed. According to the conveyer device (see Japanese Patent Application No. 1-2965) in which the conveyor of the conveyor belt is inserted into the cylindrical body proposed by the applicant, a large amount of conveyance can be performed. But,
In the structure in which the conveying section is inserted through the cylindrical body, the cross-sectional shape of the belt between the cylindrical body outlet and the end of the conveying section is flattened from an arc shape to a flat shape. At the end, what has been held at both ends of the belt by the tubular body suddenly drops, so that the grains flow down toward both edges of the belt. In this case, it is necessary to provide a receiving hopper with a large opening below the end of the transport unit.However, considering the natural fall angle of the grains, a steeply inclined angle is required. I will have to do it.

In order to solve the above-mentioned problems, the present invention provides a belt conveyor having a structure capable of transporting a large amount of grains or the like using a cylindrical body. It is an object of the present invention to provide a belt conveyor device provided so that a grain flow is brought to the center so that the grain does not fall.

(Means for Solving the Problems) In order to achieve the above object, according to the structure of the present invention, an endless transport belt is provided rotatably by inserting a transport portion of the belt into a cylindrical body. A finned link having a pair of fins that are located at both edges of the conveyor belt that is formed in an arc-shaped cross section by the inner wall of the cylindrical body and that are formed obliquely so as to gradually approach the central side with respect to the downstream of the grain distribution, The cylindrical body is slidably mounted in an annular groove formed on the inner peripheral surface.

(Operation) Since the present invention is configured as described above, when the transport belt is driven, the transport belt meanders inside the cylindrical body as it travels, but the finned link slides in the groove and the transport belt moves. Follow the movement of. When the grains and the like conveyed on the conveyor belt come into contact with the pair of fins, the grains and the like located on the side edges of the belt are moved to the center by the fins, and are raised and conveyed at the center of the conveyor belt. A small amount will be transported to the edge of the transport belt,
The load on the edge is reduced. In conjunction with the transport speed of the conveyor belt, the grains can reach near the end of the conveyor belt before moving sideways.

(Embodiment) An embodiment of the present invention will be described with reference to FIGS.

As shown in FIGS. 1 and 2, an endless transport belt B is stretched between a pair of pulleys 1 (one side is shown), and an intermediate portion of the transport section of the transport belt B is covered with a cylindrical body 2. I have. The lower surface of the conveyor belt B (the surface in contact with the cylinder 2) is adhered to a low-friction cloth or processed to reduce the coefficient of friction, and inside the cylinder 2, the lower surface of the conveyor belt B and the cylinder 2 Is in contact with the inner peripheral surface. The end of the conveyor section of the conveyor belt B is a pulley 1
And the return portion is hung on the return roller 3.

Instead of subjecting the lower surface of the conveyor belt B to low friction processing, the inside of the cylindrical body may be coated with a low friction synthetic resin or the like.

A finned link 4 is provided at the downstream end of the cylindrical body. As shown in FIG. 4, the finned link 4 has a pair of fins 4a attached to both lower ends of an arc-shaped support member 4b. The lower outer side 4c of the fin 4a is formed in a shape along the curved conveyor belt edge, and the surface of the fin is gradually inclined toward the center with respect to the conveyance direction, that is, downstream of the grain distribution ( (See FIG. 5). As shown in FIGS. 3 and 5, the finned link 4 slides on an annular guide link 5 (annular groove) that is open toward the center and has a U-shaped cross section, which is attached to the end of the cylindrical body. It is provided freely. In addition, a foot 4d may be formed on the finned link 4 so as not to form a gap in which the conveyed object enters the opening of the guide link 5 on the contact surface between the finned link 4 and the upper end of the conveyor belt B. good. Further, a frame 6 for regulating the side edge behind the fin 4a of the finned link 4 is disposed on the transport belt B. A pair of side plates may be used instead of the frame 6.

With the above configuration, when the transport belt B moves inside the cylindrical body 2, the finned link 4 is pushed by the edge of the transport belt B and slides in the guide link 5 even if it is meandering. To avoid a collision with the conveyor belt B.

In addition, the relative position between the transport belt B and the cylindrical body 2 does not change, and the transported object can be transported toward the center.

FIG. 6 shows another embodiment, in which a pair of fins 7a shown in the figure are connected to an arc-shaped support member 7b along the lower inner peripheral surface of the cylindrical body.
Use the finned link 7 connected by. The transport belt B moves inside this, so that the transported object does not enter the opening of the guide link 5.

(Effect of the Invention) Since the present invention is configured as described above, the conveyed object on the conveyor belt can be brought to the center of the conveyor belt by a pair of fins, and conveyed on the conveyor belt in a bulky state. When the conveyed object comes out of the cylindrical body, it is conveyed a predetermined distance without collapsing laterally in conjunction with the conveying speed, so that a large amount of conveyed object can be conveyed smoothly.

[Brief description of the drawings]

 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a cross-sectional plan view of the embodiment shown in FIG. 1, FIG. 3 is a front view showing a tubular body end portion of the embodiment, FIG. Fig. 5 is a front view of a finned link in the embodiment, Fig. 5 is a cross-sectional view taken along the line VV in Fig. 3, and Fig. 6 is a front view of a finned link of another embodiment. 2 ... Cylinder 4,7 ... Link with fin 5 ... Guide link (annular groove) B ... Conveyer belt

Claims (1)

(57) [Claims] An endless transport belt is rotatably provided by inserting a transport portion of the transport belt into a cylindrical body, and both edges of the transport belt are formed into an arc-shaped cross section by an inner wall of the cylindrical body in the cylindrical body. And a finned link having a pair of fins formed obliquely so as to gradually approach the center side with respect to the downstream of the grain distribution, is slidable in an annular groove formed in the inner peripheral surface of the cylindrical body. A belt conveyor device attached to a belt conveyor.