JPH0633821U - Belt support device for pipe conveyor - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the edge of the belt from hitting the corners of the shape-retaining roller. [Structure] The contact point between each roller 14 and the belt 13 rolled into a pipe shape in the pipe conveyor is shifted from the middle of the axial length of the roller by a certain amount toward one end so that the edge of the belt contacts the corner of the roller. To avoid.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a belt supporting device for a pipe conveyor.

[0002]

[Prior art and its problems]

 As shown in FIG. 4, a belt is supported on a conventional pipe conveyor by arranging a plurality of annular rows on the same circumference in a stationary support frame (not shown) that is lined up at a certain distance in the front and rear. In some cases, one roller 1 may be arranged.

The roller 1 has, for example, three upper sides supported by an upper bracket that crosses the center of the belt 2, and three lower sides that are supported by a lower bracket that crosses the center of the belt 2. Attach both ends of the upper and lower brackets with fasteners.

According to the arrangement of the rollers 1 as described above, a gap 3 is formed between the opposing ends of the adjacent rollers 1.

On the other hand, the overlapping outer edges of the belt 2 rolled into a pipe shape do not always keep a circular shape due to the resilience generated by the rolling of the belt 2 and the elasticity of the belt, It is in linear contact with the roller surface.

The belt 2, which is rolled into a pipe shape, rotates clockwise or counterclockwise in FIG. 4 during operation.

Therefore, when the belt 2 rotates clockwise in FIG. 4, the edge of the belt 2 contacts the corner (edge) of the roller 1, and the edge of the belt 2 is damaged.

The damage to the edge is greater as the rotational force generated in the belt is larger and the pressing force of the edge against the corner of the roller is stronger.

Therefore, as shown in FIG. 5, one of the adjacent rollers 1 is displaced in the traveling direction of the belt 2 and the other is displaced in the opposite direction of the traveling direction of the belt 2, and the adjacent rollers 1 face each other. By overlapping the ends, it is possible to avoid contact between the corner of the roller 1 and the edge of the belt 2.

However, when the roller arrangement as described above is adopted, the mounting space of the roller bearing stand on the bracket becomes large, so that there is a problem that the shape of the bracket becomes complicated and the size becomes large.

There is also a problem that the support frame and the conveyor frame have to have a strong structure due to the increase in size of the bracket.

Therefore, an object of the present invention is to provide a belt supporting device in a pipe conveyor having a simplified bracket shape and a reduced size.

[0013]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention provides a plurality of endless belts that are laid between the front and rear pulleys, and that are arranged in the front and rear at predetermined intervals and are annularly arranged. In a pipe conveyor in which the belt is rolled into a pipe shape by the shape-maintaining roller and the transported object is wrapped and conveyed in the pipe-conveying roller, the contact point of each roller with the belt is the axis of the roller. The configuration is such that a certain amount is shifted from the middle of the length toward one end.

[0014]

[Action]

 The belt is brought into contact with the roller at a position offset from the middle of the roller axial length by a certain amount toward one end.

As a result, the contact between the belt edge and the corner of the roller when the belt is rotated is avoided.

[0016]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, an endless belt 13 is stretched between the front and rear pulleys 11 and 12.

Further, in the range where the belt 13 on the carrier side and the return side of the belt 13 is rolled into a pipe shape, a plurality of belts are arranged at predetermined intervals in the front and rear and arranged in an annular shape to support a plurality of bearings. A shape-maintaining roller 14 that rolls the belt 13 into a pipe shape is provided.

As shown in FIG. 2, the contact position between the roller 14 and the belt 13 is shifted from the middle of the axial length of each roller 14 toward one end by a certain amount.

In the illustrated case, each of the rollers 14 is provided with an upper bracket 15 and a lower bracket 16 which cross the center of the belt 13 rolled into a pipe shape, and a center 17 and three rollers 14 on both sides, respectively, which stand 17 respectively. Both ends of the upper bracket 15 and the lower bracket 16 are fixed to the frames 18 on both sides via fastening members 19 respectively.

At this time, a total of six rollers 14 for rolling the belt 13 into a pipe shape are arranged on the same circumference of the plane, and as shown in FIGS. 2 and 3, the upper bracket 15 and the lower bracket 16 are arranged. May be slightly shifted in either the front or back direction.

With the above configuration, even if the belt 13 rolled into a pipe shape is rotated by the rotational force, the edge of the belt 13 is prevented from hitting the corner of the roller 14.

[0023]

【effect】

 As described above, according to the belt supporting device of the present invention, since the pipe-shaped belt is brought into contact with the belt at a position displaced from the center of the roller axial length by a certain amount toward one end, Avoid hitting the edge with the edge of the roller.

For this reason, it is possible to prevent damage to the edge of the belt, and it is possible to eliminate the inconvenience that the shape of the bracket becomes complicated and the size of the bracket becomes large.

[Brief description of drawings]

FIG. 1 is a side view of a pipe conveyor according to the present invention.

FIG. 2 is an enlarged vertical sectional front view showing the main part of the above.

FIG. 3 is a side view of the same.

FIG. 4 is a vertical sectional front view of a conventional example.

[Figure 5] Front view of the same section

[Explanation of symbols]

 11, 12 Pulley 13 Belt 14 Roller

Claims (1)

[Scope of utility model registration request] 1. An endless belt is stretched between front and rear pulleys, and a plurality of shape-maintaining rollers are arranged in a row at predetermined intervals in the front and rear and are annularly supported to pipe the belt. In a pipe conveyor in which the object to be conveyed is wrapped in a round shape and conveyed by wrapping it in the inside, the contact point of each roller with respect to the belt is shifted from the middle of the axial length of the roller by a certain amount toward one end. A belt support device for a pipe conveyor.