JPH0221450Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a belt conveyor in which the transport path of conveyed objects is U-shaped, and in particular relates to smooth belt movement.

[Conventional technology]

FIG. 6 is a cross-sectional view showing a conveyance path of a belt conveyor using conventional groove-shaped rollers. In the figure, reference numeral 11 denotes a belt endlessly wound above and below between a driving wheel and a driven wheel (not shown), and 12a ,12
Carrier rollers b and 12c are disposed with a trough angle θ of a predetermined angle, for example, 20 degrees, and support the belt 11.

A conventional belt conveyor for conveying bulk materials such as powdered materials is constructed as described above, and the bulk materials are carried on the belt 11.

In the conventional belt conveyor as described above, since the belt 11 is supported by the carrier rollers 12a, 12b, and 12c, the trough angle θ cannot be set very large, which limits the amount of conveyance and also reduces the The disadvantage was that the objects being transported could fall due to vibration.

In order to improve this shortcoming, the applicant of the present application has provided a U-shaped belt conveyor as shown in Fig. 7.
No. 159850).

A U-shaped belt conveyor is an endless belt 2 that winds up and down between a driving wheel and a driven wheel, has a conveyance path at the top, and has an input section and an output section for conveyed material at both ends.
It has a plurality of guide rollers 13 attached to both ends of the belt in pairs through bearings, and a guide rail 14 that sandwiches the guide rollers 13 and winds the belt endlessly between a driving wheel and a driven wheel. The loading and unloading parts of the conveyed material are flat,
By forming the conveyance path into a U-shape as shown in the sectional view of FIG. 7, bulk materials such as powder can be transported stably in large quantities.

[Problem that the invention attempts to solve]

In the above U-shaped roller conveyor, a plurality of guide rollers 13 are attached to each end of the belt in pairs.
is installed parallel to the belt surface, the side surface of the guide rail comes into contact with the guide roller 13 or the belt 2 while the belt 2 is moving, causing fluctuations in the driving force of the belt 2 and making the belt move smoothly. There is a problem that this is hindered.

This invention was made to solve this problem, and the purpose is to obtain a U-shaped belt conveyor in which the belt moves smoothly and stably.

[Means for solving problems]

The U-shaped belt conveyor of this invention has a T-shaped support shaft attached to the belt support, and a flat roller surface attached to the leg of this support shaft is sandwiched between guide rails so that both sides are in contact. The present invention is characterized in that it includes a guide roller consisting of a vertical guide roller and two parallel guide rollers that are attached to both ends of the head of a support shaft and have their flat roller surfaces in contact with the guide rail.

[Effect]

In this invention, a vertical guide roller and a parallel guide roller attached to each end of a T-shaped support shaft attached to the side edge of the belt are brought into contact with a guide rail made of two metal pipes, and the belt is By moving, the belt is held stably and the resistance between the guide rail and each guide roller is reduced.

〔Example〕

Figures 1 and 2 show an embodiment of this invention,
FIG. 1 is a plan view, and FIG. 2 is a side view. In the figure, 1 is a pair of belt supports attached to both sides of an endless belt 2 at regular intervals, and 3 is an endless guide rail connected between a driving wheel 4 and a driven wheel 5 with the belt 2 in between. The guide rail 3 includes a conveyance section 3a and a conveyed object input/discharge section 3.
Consists of b.

As shown in FIG. 3, each of the belt support parts 1 includes a T-shaped support shaft 6 attached to the end of the belt 2 so that the head end thereof is perpendicular to the belt surface of the belt 2, and a T-shaped support shaft 6 of the support shaft 6. A vertical guide roller 7 is mounted perpendicularly to the belt surface via a bearing on a leg close to the belt attachment part, and 2 is mounted parallel to the belt surface via a bearing at both ends of the T-shaped support shaft 6 head. It consists of parallel guide rollers 8.

The guide rail 3 consists of a pair of metal pipes 9a and 9b arranged at a constant interval, with a vertical guide roller 7 sandwiched between the metal pipes 9a and 9b, and parallel guide rollers 8 on each side of the metal pipes 9a and 9b. are brought into contact with each other, and the belt 2 is made to run along the guide rail 3.

The metal pipes 9a and 9b in the conveying section 3a of the guide rail 3 are arranged horizontally parallel to each other at regular intervals, making the belt 2 U-shaped. Further, the guide rail 3 is arranged so that as it moves away from the conveyance section 3a, the upper end thereof gradually inclines outward and the interval between the belts increases, and the metal pipes 9a and 9b in the input/discharge section 3b of the guide rail 3 are vertical to each other. direction, and flatten the belt 2.

FIG. 4 is a sectional view showing the conveying section 3a of the U-shaped belt conveyor constructed as described above. While contacting the upper surfaces of the two metal pipes 9a and 9b, the belt 2 is moved by the vertical guide roller 7 so that the belt 2 is shaped into a U-shape in accordance with the metal pipes 9a and 9b.

At the conveyance input/discharge section 3b of the guide rail 3, as shown in FIG. is metal pipe 9
Belt 2 while contacting the upper and lower surfaces of a and 9b.
Move as flat.

In the U-shaped belt conveyor constructed as described above, a vertical guide roller 7 and a parallel guide roller 8 attached to the T-shaped support shaft 6 of the belt support part 1 are connected to metal pipes 9 provided at equal intervals on the guide rail 3.
Belt 2 always moves in contact with a and 9b.
The end position of the belt 2 can always be kept constant with respect to the metal pipes 9a and 9b even during movement.
Also, vertical guide roller 7 and parallel guide roller 8
Since the flat roller surface rotates and moves in point contact with the metal pipes 9a and 9b, the resistance during movement of the belt 2 can be reduced.

[Effect of idea]

As explained above, this idea was developed by keeping the vertical guide roller and parallel guide roller attached to each end of the T-shaped support shaft attached to the end of the belt in constant contact with the guide rail made of two metal pipes to support the belt. Because it moves, the belt can be accurately positioned with respect to the guide rail. Also, since each guide roller rotates in contact with the metal pipe, the resistance during belt movement can be reduced. The belt can be moved smoothly. Furthermore, since the guide rail is formed of a metal pipe, the guide rail can be easily processed and the U-shaped belt conveyor can be manufactured at a low cost, which has great practical effects.

[Brief explanation of the drawing]

1 and 2 each show an embodiment of this invention, in which FIG. 1 is a plan view, FIG. 2 is a side view, FIG. 3 is a partially enlarged view showing the belt support portion of the above embodiment, and FIG. The figure is a sectional view showing the conveyance section of the above embodiment, FIG. 5 is a plan view showing the input/discharge section of the above embodiment, and FIG.
The figure is a cross-sectional view showing a conveyance path of a conventional belt conveyor, and FIG. 7 is a cross-sectional view showing a conveyance path of a U-shaped belt conveyor. DESCRIPTION OF SYMBOLS 1... Belt support part, 2... Belt, 3... Guide rail, 4... Drive wheel, 5... Driven wheel, 6...
...Support shaft, 7...Vertical guide roller, 8...Horizontal guide roller, 9a, 9b...Metal pipe.

Claims (1)

[Claims for Utility Model Registration] An endless belt that is driven by drive wheels and is arranged vertically and moves from an input section to an output section for conveyed objects, and a belt that is arranged at regular intervals on both sides of the belt via support sections. a plurality of guide rollers provided in pairs for each belt, and two guide rollers provided along both side edges of the belt to guide the belt through the guide rollers and form a U-shaped conveyance section at the top. A U-shaped belt conveyor equipped with a guide rail made of pipes, a T-shaped support shaft attached to the support portion of the belt, and a flat roller surface attached to the leg of the support shaft attached to the guide rail. A guide roller consisting of a vertical guide roller that is sandwiched between the support shafts and has both sides in contact with each other, and two parallel guide rollers that are attached to both ends of the head of the support shaft and have flat roller surfaces that are in contact with the guide rails. A U-shaped belt conveyor characterized by: