JPH0663510U - Belt support for belt conveyor - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent the belt from being worn or damaged due to the surging phenomenon that occurs in the downward groove portions formed at the start end portion and the rear end portion of the return path rounded in a pipe shape. [Structure] The groove portion 2X is supported by a belt support 7 having an upper end surface 11 that is curved so as to match the inner surface 2a of the downward groove portion 2X.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a belt conveyor in which an endless belt is wound flatly around a driving drum and a driven drum at both front and rear ends of an installation section to circulate an outward path and a return path, and at least the return path is rolled into a pipe shape. Belt support used to support the downward groove formed in the process of converting from flat to pipe at the beginning and in the process of converting from pipe to flat at the end of the return path. It is related to ingredients.

[0002]

[Prior art]

 An endless belt is wrapped flatly around the drive drum and driven drum at the front and rear ends of the installation section to circulate the forward and return paths and the return path is rolled into a pipe shape to prevent belt deposits from falling in the return section. Known belt conveyors.

At the beginning of the return path of such a belt conveyor, the endless belt wound in a flat shape on the drum is converted into a pipe shape, or at the end of the return path, converted from a pipe shape to a flat shape and converted into a driven drum. When the belt 2 is wound around, as shown in FIGS. 5 to 7, the belt 2 wound around the driving drum 1a and the driven drum 1b in a flat shape is provided on the support plate 31 so as to intersect the belt longitudinal direction. A guide roller device 4 in which a plurality of guide rollers 3 are arranged in a downward arc shape forms a downward groove portion 2x, and a plurality of shape-retaining rollers 5 provided with both side edge portions 2a and 2b of the belt 2 in front thereof. The shape-retaining roller devices 6 arranged in a circular shape on the support plate 51 are turned inward toward the inside and overlapped with each other to be converted into the pipe-shaped portion 2y, or by the same means at the end of the return path. It is common to convert from a pipe shape to a flat shape.

As described above, according to the conventional flat-shaped to pipe-shaped conversion means and pipe-shaped to flat-shaped conversion means, the downward groove portion 2x formed in the conversion process is the guide roller device 4 It is only guided by a plurality of guide rollers 3 arranged in a downward arc shape.

[0007] Therefore, the belt 2 is slackened by its own weight in the downward groove portion 2x, and this slackness is promoted at the time of start-up and during driving to cause a vertical deviation, which causes bottoming due to a so-called surging phenomenon. There is a problem that the belt 2 is damaged. In addition, since the side edges 2a and 2b of the belt 2 do not overlap correctly before the shape-maintaining roller device 6, the pipe-shaped portion 2y is twisted, and the joints of the side edges 2a and 2b open to spill the luggage. In addition, dust or rainwater may enter the inside of the belt, and a large amount of tension is intermittently applied to the belt 2 to cause uneven wear or damage. Further, the shape-maintaining roller 5 and the driving drum 1a There is also a problem that an overload acts on the driven drum 1b, the belt driving prime mover (not shown), and causes a failure.

Further, there is a problem that the slack in the downward groove portion 2x restricts the arrangement height of the belt conveyor, and the tension of the belt must be increased in order to eliminate this slack.

[0007]

[Problems to be solved by the device]

 The problem to be solved by the present invention is that in a conventional belt conveyor in which a return path is rolled into a pipe shape, damage to the belt due to a surging phenomenon occurs in the groove formed in the conversion process of the start end portion and the end portion of the return path. In addition, when the belt is deformed into a pipe shape, the two side edges of the belt do not overlap properly, so the pipe portion is twisted, and a large amount of tension is applied intermittently to the belt to cause uneven wear or damage to the belt. Furthermore, it is also a cause of malfunction due to overload on the shape-maintaining rollers and drums.

[0008]

[Means for Solving the Problems]

 The present invention relates to a belt conveyor in which an endless belt is wound flat on a drum at both front and rear ends of an installation section to circulate an outward path and a return path, and at least the return path is rounded into a pipe shape at the beginning or end of the return path. A belt support for supporting the downward groove portion formed in the process of converting the flat portion to the pipe portion or in the process of converting the pipe portion to the flat portion is With the configuration having the curved upper end surface so as to match the inner surface of the groove-shaped portion, the above-described problem that occurs in the groove-shaped portion formed at the start end portion and the end portion of the return path in the belt conveyor is solved.

[0009]

[Action]

 The downward groove is supported by the upper end surface that is curved so as to match the inner surface of the groove, thereby preventing sagging and lateral movement.

[0010]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings.

The same components as those of the conventional example are designated by the same reference numerals.

1 to 3 are formed in the process of converting the endless belt 2 which is flatly wound around the driving drum 1a at the start end portion of the return path 2B into a pipe shape in the belt conveyor in which the outward path 2A has a pipe shape. The present invention is applied to the downward groove portion 2x formed as described above. As in the conventional example shown in FIGS. 5 to 7, the drive drum 1a at the rear end is wound in a flat state. Two sets for deforming the belt 2 attached to the support plate 31 with a plurality of guide rollers 3 disposed on the lower surface at the start of the returning path of the hung belt 2 so as to intersect the longitudinal direction of the belt into a downward groove. The guide roller devices 4 and 4 are arranged at a predetermined interval in the traveling direction of the belt 2, and both sides of the belt 2 are deformed downward by the guide roller devices 4 and 4 in front of them. Edge In order to invert each of them inward and to form a tubular shape by superposing them on each other, a plurality of shape-retaining rollers 5 arranged in a circle surrounding the endless belt 2 are attached to a support plate 51, and a shape-retaining roller device 6 is arranged. ing.

A plurality of belt supporting members 7 according to the present invention are arranged in the groove 2x of the belt 2 at a predetermined interval.

The belt support 7 has a support body 10 having an end face semi-arcuate and having an appropriate thickness, which is mounted and fixed on a base 9 which is erected in a frame 8 surrounding the belt 2. ing.

The support main body 10 has rigidity such as a metal such as iron or a hard synthetic resin, and is formed of a material having a smooth surface. In particular, the surface of the support body 10 is robust and excellent in lubricity such as fluororesin. It is more preferable when the substance having the above properties is coated and formed smoothly.

Further, the upper end surface 11 of the support body 10 is formed into a curved surface having a shape matching the inner surface 2a of the groove 2x of the belt 2 at the position where the support 7 is arranged.

According to this embodiment, the upper end surface 11 of the support body 10 can support the groove-shaped portion 2x of the belt 2 at the position where the support-body main body 10 is disposed without slack, and in particular, the groove-shaped portion 2x. Since the entire inner surface 2a is supported by the upper end surface 11 of the support body 10 which is curved so as to match the shape, the shape of the groove portion 2x is not broken and the center position of the feeding direction is not displaced. Can be reliably supported

Therefore, it is possible to prevent the runout of the belt 2 generated in the groove portion 2x during operation and the waviness phenomenon at the time of starting, and the belt accompanying the runout of the belt 2 during operation and the wavy phenomenon at the time of starting. Not only is there no damage caused by collision or rubbing between the two side edges 2a, 2b of the two, but uneven wear or damage of the belt 2, the shape-maintaining roller 5, etc., or even an overload on the belt driving prime mover, etc. There is no need to worry about breakdowns.

In addition, both side edge portions 2b and 2c forming the groove portion 2x are fed to the shape-retaining roller device in a state where they are horizontally held, and both side edge portions 2b and 2c are properly overlapped without being biased. Since the pipe-shaped portion 2y is formed, the pipe-shaped portion 2y is twisted, the joints of the side edge portions 2a and 2b are opened, and the luggage is spilled or dust or rainwater is allowed to enter inside. There is no.

Further, there is no limitation on the height of arrangement of the belt conveyor due to slack in the downward groove portion 2x, and there is no need to increase the tension of the belt in order to eliminate the slack.

The supporting member 7 may be arranged at a portion of the groove 2x where the most shake occurs, and the arrangement position and the number of arrangements may be appropriately determined.

Further, although the above-described embodiments have been described as being carried out at the start end of the return path in the belt conveyor, it goes without saying that the same can be done at the end of the return path.

Further, in the present embodiment, the upper end surface 11 is formed in a semi-circular shape and has an appropriate thickness. However, for example, the upper end surface 11 matches the inner surface of the downward groove portion 2x like a spherical surface. It only needs to have a curved shape.

In addition, in each of the above-described embodiments, the case where it is carried out at the start end of the return path in the belt conveyor is shown, but it goes without saying that the same can be carried out at the end of the return path.

[0025]

[Effect of device]

 According to the present invention in which the downward groove portion is supported by the upper end surface of the support main body which is curved so as to match the inner surface thereof, the groove portion 2x can be positioned at the center position in the feeding direction without losing its shape. It can be reliably supported without shifting, and the groove-shaped part in front of the shape-maintaining roller device keeps both side edges horizontal and supports it without slacking. It is possible to prevent the phenomenon from occurring in the groove portion, and there is not only the belt runout and the belt damage caused by the surging phenomenon at the time of start-up which are caused by these phenomena, but also the belt and the protection. There is no intention of uneven wear or damage of shaped rollers, or even failure due to overload on the belt drive motor. .

In addition, since the belt is fed to the shape-maintaining roller device in a state where both side edges of the belt are kept horizontal at the start end of the return path, both side edges are properly overlapped to form a pipe-shaped portion. Therefore, the pipe-like part will not be twisted, the joints will not open and spilled luggage, and dust and rainwater will not enter inside.

Further, there is no limitation on the arrangement height of the belt conveyor due to the slack in the downward groove, and there is no need to increase the tension of the belt to eliminate the slack.

[Brief description of drawings]

FIG. 1 is a perspective partial view showing an embodiment of the present invention.

FIG. 2 is a schematic side partial view showing a usage state of the embodiment shown in FIG.

FIG. 3 is an enlarged partial view with a part of FIG. 2 omitted.

4 is a sectional view taken along the line AA of FIG.

FIG. 5 is a partial side view showing a conventional example.

6 is an enlarged cross-sectional view taken along the line BB of FIG.

FIG. 7 is an enlarged cross-sectional view taken along the line CC of FIG.

[Explanation of symbols]

 1a drive drum 1b driven drum 2 belt 2a inner surface 2x groove-shaped portion 2y pipe-shaped portion 7 belt support 11 upper end surface

Claims (1)

[Scope of utility model registration request] 1. A belt conveyor in which an endless belt is wound around a drum in a flat shape at both front and rear ends of an installation section to circulate an outward path and a return path, and at least the return path is rolled into a pipe shape. A belt support for supporting a groove portion whose downward cross section has a substantially semi-arcuate shape formed in the process of converting the flat portion to the pipe portion or in the process of converting the pipe portion to the flat portion. A belt supporting tool for a belt conveyor, which has an upper end surface curved so as to match the inner surface of the downward groove.