JPS627608Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a belt conveyor.

[Technical background of the invention]

Generally, the structure of a belt conveyor is to form a frame by connecting a pair of parallel side frames with a horizontal connecting member, a pair of end rollers are mounted on both ends of this frame, and a pair of end rollers are mounted on both ends of the frame. An endless belt is wound between the rollers, and support rollers for preventing deflection of the endless belt are arranged in parallel between the side frames on both sides between the pair of end rollers, and one end of the frame is The endless belt is rotated by a drive mechanism installed in the belt.

[Problems with background technology]

In the case of the conventional structure mentioned above, many drilling processes, screw hole processes, welding processes, and
Screw tightening processing, etc. is required, and the number of parts is increasing, and mounting a large number of support rollers on the shaft requires a large number of processing and parts, as well as forming a frame, which is expensive and heavy. It was also heavy.

[Purpose of invention]

The present invention was developed in view of the above-mentioned points.The frame is integrally molded, and support rollers are not required.Thereby, the number of processing steps and number of parts are greatly reduced, and it is inexpensive and lightweight. The purpose is to provide a belt conveyor.

[Summary of the idea]

The belt conveyor of the present invention has a mounting part formed at the lower part of both sides in the width direction of the elongated plate-shaped belt support part over the entire length of the belt support part, and the lower part of the mounting part is opened over the entire length of the belt support part. and a frame having a groove that is open at both ends in the length direction of the mounting part, and locking edges formed on both widthwise sides of the opening at the bottom of the groove over the entire length of the groove, and mounting on both sides of the frame. A shaft support fitted to both ends of the groove of the frame, a roller supported between the shaft supports on both ends of the shaft, and a belt supported at the bottom of the frame via the grooves of both side mounting parts of the frame. The belt is characterized by comprising a drive mechanism, and an endless belt that is wound around rollers at both ends of the frame and a belt drive mechanism at the bottom of the frame, and whose conveyance section is supported by the belt support section of the frame. By integrally molding the frame with aluminum material or synthetic resin material, for example, the frame can be made lighter and less expensive, and by supporting the belt on the support part of the frame, support rollers are no longer required. By attaching the rollers and drive mechanisms at the end portions through the grooves of the attachment portions provided at the lower sides of both sides of the frame, these attachments are facilitated.

[Example of idea]

Next, the present invention will be specifically described based on embodiments shown in the drawings.

Figures 1 and 2 show a small belt conveyor. In the figures, 1 is a frame, 2 is a shaft support attached to both ends of the frame 1, and 3 is a shaft on both sides at both ends of the frame 1. An end roller rotatably supported between the supports 2, 4 a belt drive mechanism supported at the bottom of one end of the frame 1, 5 wound around the end rollers 3 at both ends and the belt drive mechanism 4 at the bottom of one end. The endless belt 6 is a leg provided approximately at the center of the frame 1.

The frame 1 is integrally formed by extrusion molding an aluminum material, and as shown in FIGS.
Attachment portions 12 are formed across the entire length of the belt support portion 11 at lower portions on both sides in the width direction, and groove portions 13 are opened at the lower portions over the entire length of the attachment portion 12 and at both ends in the length direction of the attachment portion 12. , and this groove 1
3, locking edges 14 are formed on both sides in the width direction of the opening at the bottom of the groove 13 over the entire length of the groove 13.

As shown in FIG. 4, the shaft support body 2 is formed to have approximately the same width as the mounting portion 12 of the frame 1, and has a shaft support hole 21 bored in the width direction of its upper part. At the bottom, a protrusion 22 is connected to a shaft support hole 21.
The protrusion 22 is provided with a female threaded hole 23 in a direction intersecting with the shaft support hole 21 .

The shaft portions at both ends of the end roller 3 are supported by the shaft support holes 21 of the shaft support body 2, and
As shown in FIG. 5, this shaft support 2 has a projection 2
2 is inserted and fitted into the end of the groove 13 of the frame 1, and the male screw 24 is screwed into the female screw hole 23 of the protrusion 22, thereby being fixed to the frame 1.

As shown in FIG. 5, the belt drive mechanism 4 has a large-diameter drive pulley 42 rotatably mounted between the lower portions of a pair of side frames 41 on both sides via a bearing 43. Attach a drive motor that is not connected to the drive pulley 42 and connect the shaft of the drive
A tension pulley 47 is located above the drive pulley 42 and is rotatably connected between the upper parts of the side frames 41. In FIG. 2, it is constructed by being mounted on a shaft so that its position can be adjusted in the left-right direction.

As shown in FIGS. 4 and 5, this belt drive mechanism 4 is attached to the upper part of one end of the side frame 41 at both ends by the male screw 24 when fixing the shaft support 2. At the same time as attaching it to section 12,
The upper part of the other end is fixed to the frame 1 by screwing and tightening the male screw 49 into a female screw body 48 that has been inserted into the groove 13 of the frame 1 in advance.

Note that 50 in FIG. 2 is the belt drive mechanism 4.
51 is a cover for the sprocket wheels 44, 45 and the chain 46.

Although not shown, a position adjustment mechanism for the tension pulley 47 is provided inside the side frames 41 on both sides (at the position indicated by A in FIG. 5).

The belt 5 passes over the belt support part 11 of the frame 1 from the end roller 3 at one end to the end roller 3 at the other end, and then passes from the end roller 3 at the other end to the tension pulley 47. It once passed below the belt support part 11, and then it is looped around in a large curve by the drive pulley 42 from the tension pulley 47 toward the end roller 3 at one end.

The leg body 6 has a substantially triangular support piece 62 attached to a U-shaped mounting plate 61, a telescoping rod 63 attached to the support piece 62 so as to be adjustable in angle, and a grounding frame 64 slidably attached to the extensible rod 63. They are configured by being fixedly fitted.

Although not shown explicitly, this leg body 6 is attached to its mounting plate 6 on a female screw body that has been inserted into the groove 13 of the frame 1 in advance, similar to the belt drive mechanism 4 described above.
Frame 1 is assembled by screwing and tightening 1 with a male screw.
is fixed.

When using the belt conveyor, adjust the legs 6 to set the frame 1 at an appropriate angle and height, and operate the control switch 50 to move the belt 5 to its conveying section 5a. , rotates at an appropriate speed from one end of the frame 1 to the other end or from the other end to one end, and transports the object supported on the belt 5.

At this time, since the belt 5 is supported by the belt support part 11 of the frame 1 in the conveyance part 5a, it does not bend at all due to the weight of the conveyed object, and in the return part 5b, the belt 5 is supported by the belt support part 11 of the frame 1.
Since the belt 5 is moved between the two attachment parts 12, the belt 5 is protected and the danger to the operator is extremely small.

Further, FIG. 6 shows a state in which the belt drive mechanism 4 of this belt conveyor is supported at the middle lower part of the frame 1.

In this case, as shown in FIG. 7, the belt drive mechanism 4 has the other end upper part of the side frames 41 on both sides supported in advance, as in the case where the belt drive mechanism 4 is supported at the lower end of the frame 1. Groove 1 of frame 1
Connect the male screw 49 to the female screw body 48 inserted into the
Attach it to frame 1 by tightening the screws with
The upper end of one end is fixed to the frame 1 by being screwed into a female screw body 71 having a plurality of female screw holes, which has been inserted into the groove 13 of the frame 1 in advance, with a male screw 72.

In this case, a guide roller 7 for positioning the belt 5 between the drive pulley 42 and the end roller 3 at one end between the mounting portions 12 on both sides of the frame 1
3 will be provided.

That is, as shown in FIG. 8, both end shaft portions of this guide roller 73 are supported by shaft support holes 75 of a shaft support body 74 as shown in FIG. Screw and tighten.

In this way, the belt drive mechanism 4 can be supported at any position below the frame 1, and
At that time, there is no need for drilling, screw hole processing, or welding, and changes can be made extremely easily. In addition,
Similarly, the position of the leg body 6 can be adjusted freely, and in addition, when conveying bulk materials with this conveyor, a hopper can be attached via the grooves on both sides, and furthermore, a control A photoelectric switch, a limit switch, etc. may also be provided.

FIG. 9 shows a modification of the frame 1. This frame 1a is used when the width of the belt conveyor is wide, and has a mounting part 12 on one side.
It is constructed by combining a pair of frame members 82 having a joint portion 81 at the other end.

[Effect of idea]

As described above, according to the present invention, since the frame can be integrally molded from aluminum or synthetic resin, the frame can be made lighter and less expensive, and the belt can be supported by the belt support portion of the frame. The weight can be further reduced by eliminating the need for multiple belt support rollers. Furthermore, the frame has a one-piece structure with a roughly U-shaped cross-section, making it extremely rigid and resistant to bending and torsion. Furthermore, the frame is extruded and has a long length. Since lengths can be easily manufactured, by cutting them to the desired length and using them, parts management can be streamlined, and end rollers, belt drive mechanisms, legs, etc. It can be easily attached by screwing or the like through the groove of the attaching part, and as a result, an extremely inexpensive and lightweight belt conveyor can be provided.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention: Fig. 1 is a plan view of the belt conveyor, Fig. 2 is a side view thereof, Fig. 3 is a sectional view of its frame, and Fig. 4 is an exploded perspective view of its main parts. 5 is a sectional view taken from the side in FIG. 2, FIG. 6 is a partial side view showing the state in which the belt drive mechanism is provided in the middle of the belt conveyor, and FIG. 7 is an exploded perspective view of the main parts. FIG. 8 is a cross-sectional view taken from the side in FIG. 6, and FIG. 9 is a cross-sectional view showing a modification of the frame. 1, 1a...frame, 2...shaft support, 3...
End roller, 4... Belt drive mechanism, 5... Belt, 5a... Conveyance section, 11... Belt support section,
12... Attachment part, 13... Groove part, 14... Locking edge part.

Claims (1)

[Scope of Claim for Utility Model Registration] Attachment portions are formed at the bottom of both sides in the width direction of a belt support portion in the form of an elongated plate, extending over the entire length of the belt support portion, and the lower portion is open over the entire length of the attachment portion. and a frame having a groove opening at both ends in the length direction of the mounting part, and locking edges formed on both sides in the width direction of the opening at the bottom of the groove over the entire length of the groove, and both sides of the frame. A shaft support fitted to both ends of the groove of the mounting part, a roller supported between the shaft supports on both sides at both ends, and a roller supported at the bottom of the frame via the grooves of the mounting part on both sides of the frame. The present invention is characterized by comprising a belt drive mechanism, and an endless belt that is wound around rollers at both ends of the frame and the belt drive mechanism at the bottom of the frame, and whose conveyance section is supported by the belt support section of the frame. belt conveyor.