JPH03143810A - Drive roller curved conveyor using v-belt - Google Patents

Abstract

PURPOSE:To prevent abrasion of a belt and prevent removal of the belt by bearing a drive pulley, a V-belt pulley just under each roller, and a transmission pulley by pulley shafts directed almost perpendicularly, and disposing the pulleys to be positioned almost in the same plane. CONSTITUTION:A V-belt pulley 9 having a transmission pulley 10 to get in contact with a straight cylinder-like roller 5 and a tapered roller 4 is disposed just under the rollers 5, 4, and it is borne by a pulley shaft 8 directed almost perpendicularly. A drive part 11 is positioned on the inner side of a curved part 2, and it is composed of a drive pulley 12 and tension pulleys 13, 13 capable of horizontal displacement toward the shaft of the tapered roller 4. These pulleys 9, 12, 13 are disposed in the same plane, and a V-belt 25 is applied. In this constitution, the V-belt can be run horizontally, and the tension can be equalized.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a roller curve conveyor that rotationally drives a large number of rollers using the force of a circulating endless V-belt.

(Prior technology) A large number of rollers are installed between curved frames on both sides, a pulley shaft is provided below each roller in parallel with the rollers, and a V-belt is interposed between the roller and a pressure pulley that is pivotally supported on the pulley shaft. , V with end pulleys installed at both ends of the conveyor.
The belt is circulated by turning the belt, the axis of the drive pulley of the drive part is vertical, and tension pulleys are arranged on both sides of the drive pulley, and the V-belt is circulated via the drive pulley and the tension pulley, and the V-belt advances. Drive roller curve conveyors are known that use V-belts to rotate each roller under action.

(Problems to be Solved by the Invention) In the drive roller curve conveyor using a conventionally known V-belt, as described above, the V-belt is interposed between the roller and the pressure pulley which is supported on a pulley shaft parallel to the roller. The V-belt is also curved along the curve of the conveyor.

Further, since the axis of the drive pulley of the drive section is vertical and the pulley axis of the end pulley is horizontal, a pent pulley is interposed between them, and the V-belt is twisted 90'' between the pent pulley and the end pulley.

The V-belt has a narrow top surface, a wide bottom surface, and sloped sides forming a trapezoidal cross section, and a plurality of parallel core wires are embedded along the wide bottom surface. Therefore, when using a V-belt, it is essential to bend each of the plurality of core wires so that an even tension is applied to each one.

However, in the conventional roller curve conveyor, as described above, the V-belt is bent or twisted in an abnormal direction, so that an equal tension is not applied to the plurality of core wires. As a result, the slope of the V-belt was worn significantly, which not only shortened the life of the belt, but also caused the belt to easily come off the pulley to the inside of the curve.

In view of the above points, the present invention circulates the endless V-belt in a basic manner so as to apply even tension to a plurality of core wires without significantly twisting the V-belt or bending it in an abnormal direction, thereby causing significant wear and tear on the belt. To provide a new drive roller curve conveyor which can be used for a normal service life by preventing this, and which reduces the possibility of a V-belt coming off from a pulley and causes fewer troubles.

(Means for Solving the Problems) In order to achieve the above object, in the drive roller curve conveyor using the V-belt of the present invention, there are
A pulley shaft oriented in a substantially vertical direction is provided, and a V-belt pulley is supported on each of these pulley shafts.
A transmission pulley is integrally attached to the upper part of the belt pulley, and each transmission pulley is in contact with the roller at the same position in the same direction, and has the driving rotation axis of the drive unit in the same vertical direction. It is characterized in that an endless V-belt is stretched between the drive pulley and each V-belt pulley, which is positioned on the drive rotation shaft and positioned substantially in the same plane as the pulley.

It is effective that the drive section comprises a drive pulley provided on the vertical axis of a drive source whose horizontal position can be automatically adjusted, and tension pulleys located on both sides of the drive pulley.

Furthermore, although the pulley axis of the V-belt pulley located directly below the tapered roller in the curved portion is vertical, it is desirable that the pulley axis of the V-belt pulley located directly below the roller in the straight portion be slightly inclined from the vertical direction.

Furthermore, it is effective that the bearing portion formed in the frame of the roller shaft on the side that contacts the roller of the transmission pulley is capable of vertically displacing the roller shaft.

(Function) In the drive roller curve conveyor configured as described above, not only the drive pulley but also all the pulleys of the V-belt pulley located directly below each roller are supported by pulley shafts that are respectively arranged at approximately vertical positions. Moreover, since the respective pulleys are positioned in substantially the same plane, the endless belt circulating around these pulleys is not twisted or turned in an unusual direction, and operates in its normal direction. Therefore, equal tension acts on each core wire of the V-belt.

(Example) An example will be described with reference to the drawings. FIG. 1 is a plan view of the roller curve conveyor according to the present invention, with the rollers omitted. In the figure, 1 and 1 are parallel frames on both sides similar to those of a known conveyor, and have a curved part 2 and a straight straight part 3.

In the curved part 2, as shown in FIG. 2, a plurality of tapered rollers 4 having a larger diameter on the outside of the curve than on the inside of the curve are installed radially between multiple frames 1.1. .

On the other hand, in the straight moving part 3, rollers 5 in the shape of right cylinders having the same diameter are installed in parallel between a plurality of frames 1.1.

Brackets 6.6~ are installed at appropriate intervals between the lower parts of the frames 1, 1, and a middle position parallel to the frames 1, 1 is placed on the brackets 6.6 at an intermediate position between the frames 1.1. The frame 7 is fixed.

V with a transmission pulley 10 located directly below each roller 4.5
A belt pulley 9 is arranged. That is, a substantially perpendicular pulley shaft 8 is erected on the intermediate frame 7, a V-belt pulley 9 is pivotally supported on the pulley shaft 8, and a transmission pulley 10 is integrally mounted on the V-belt pulley 9.

Since the tapered roller 4 positioned at the curved portion 2 has an inclined surface, the pulley shaft 8 of the V-belt pulley 9 positioned directly below the roller 4 is vertical. For this reason, the upper surface of the transmission pulley 10 is horizontal, and as a result, the lower surface of the roller 4, which is an inclined surface, and the transmission pulley 10 are in contact only on the large diameter side of the roller, that is, at the position toward the outside of the curved portion 2. It has become.

On the other hand, since the roller 5 positioned in the straight moving section 3 is a right cylindrical roller, the V
The pulley shaft 8 of the belt pulley 9 is slightly inclined from the vertical direction, and the roller 5 and the transmission pulley 10 are connected to the curved portion 2.
The roller 4 and the transmission pulley 10 are in contact at a position in the same direction as the contact direction.

The drive section 11 is shown in FIGS. 5 and 6.

This driving section 11 is located inside the curved section 2, and includes a drive pulley 12 that can be displaced horizontally in the axial direction of the tapered roller 4, and tension pulleys 13, 13 located on both sides of the drive pulley 12. It consists of

Frame 1 of the part where the drive part 11 of the curved part 2 is located,
A pedestal 14 supported by legs 15 is fixedly installed below the pedestal 1, and a pair of stays 16, 16 are fixed between the pedestals 14, 14. Slider 17 on this stay 16.16
．． 17 is loosely mounted, and a block 19 is attached to the slider 17.17 using a member 18.18 to tighten the motor. In the figure, reference numeral 20 denotes a drive motor, and the drive pulley 12 is attached to a vertical shaft 21 that is rotated by the drive motor 20.
is supported by a shaft. A pressure expansion spring 22 for automatically adjusting the position of the drive pulley 12 is incorporated in the stay 16. It is oppressing the direction.

The tension pulleys 13, 13 are attached to vertical shafts 2 erected on brackets 23 and 23 installed between the mounts 1414.
4.24 is pivoted.

These drive pulley 12 and tension pulley 13,
13 is positioned on the same plane as the above-mentioned large number of V-belt pulleys 9.9, and the inner part of the curved part of the endless V-belt 25, which is hung on the outside of the curved part 2 of each V-belt pulley 9.9, is connected to the tension pulley. It is hung on the outside of the curved portion 2 of the drive pulley 12 and on the inside of the curved portion 2 of the drive pulley 12, and is configured to circulate the entire belt.

This V-belt 25 is attached to the V-belt pulley 9. Drive pulley 12. Since the tension pulley 13 is located in a substantially horizontal state, the bottom surface 26 of the V-belt 25 shown in FIG.
is facing outward and the slope 27 is facing up and down, and the top surface 2
8 faces inward, and it always circulates in this state. Therefore, uniform tension acts on all the core wires 29 embedded in the belt.

Furthermore, as shown in FIGS. 7 and 8, when the bearing portion 31 of the frame 1 supporting the roller shaft 30 located outside the curved portion of the tapered roller 4 or roller 5 is vertically displaced, the roller shaft 30 In other words, the bearing holes are made into elongated holes at the top and bottom, so that the contact force between the roller and the transmission pulley 10 is changed depending on the weight of the conveyed object on the roller, and rotational force is reliably transmitted to the roller. It is set as.

In addition, 32.32 in the figure is a belt holding roller, which circulates V
It securely hangs the belt 25 on the V-belt pulley 9,
It works particularly effectively in the straight section 3, but is not necessarily necessary in the curved section 2.

When the drive motor 20 is operated to rotate the drive pulley 12 in the roller curve conveyor constructed as described above, power is transmitted to the V-belt 25 hooked on the drive pulley 12, and the V-belt 25 is circulated. As a result, each V-belt pulley 9 on which this V-belt 25 is hung
all rotate in the same direction, rotating a transmission pulley 10 integrally mounted on the top of each. This transmission pulley 10 is
Since the curved portion 2 contacts the tapered roller 4 and the straight portion 3 contacts the roller 5, the rotational force of the transmission pulley 9 is transmitted to the rollers 4 and 5, respectively, and all The rollers are rotated in the same direction to convey the object on the rollers.

(Effects of the Invention) As described above, in the drive roller curve conveyor of the present invention, each V-belt pulley is pivotally supported on a substantially vertical pulley shaft, the drive pulley is also pivotally supported on a vertical shaft, and each of these V-belt pulleys and Since the drive pulley is horizontal and positioned on approximately the same plane, when the endless V-belt is being hung or passed, there is no need to twist the belt or apply different tensions to the belt core. If the belt is hung so that approximately equal tension is applied to the core wire of the belt, V
It has the effect of preventing belt wear and making it durable over time, and since no unbalanced force is applied to the belt, there is no risk of the belt coming off the pulleys, making the conveyor less trouble-free. It has the effect of being able to.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the drive roller curve conveyor of the present invention.
In order to clarify the arrangement of the V-belt, each roller is omitted from the illustration. Fig. 2 is a partially cross-sectional side view of the roller and V-belt pulley in the curved section, Fig. 3 is a partially cross-sectional side view of the roller and V-belt pulley in the straight section, and Fig. 4 is a rear view of the portion shown in FIGS. 2 and 3, FIG. 5 is a plan view showing the drive unit, and FIG. 6 is a front view of the same.
7 and 8 are a side view and a front view showing the shaft support of the roller, and FIG. 9 is an enlarged sectional view of the V-belt. 1-Frame 2-2-Curved section 3-Straight section 4--Tapered roller 5-Roller
8-Pulley shaft 9-V belt pulley 10
- Transmission pulley 11 - Drive unit 12 - Drive pulley 13 - Tension boo 916 Stay 17 - Slider 20 - Drive motor 21 - Vertical shaft 22 - Expansion spring 25 - ■ Belt

Claims (5)

[Claims] (1) Pulley shafts oriented in a substantially vertical direction are provided directly below a plurality of rollers installed between a pair of parallel frames having curved portions, and a V-belt pulley is pivotally supported on each of these pulley shafts. A transmission pulley is integrally attached to the upper part of each V-belt pulley, and each transmission pulley is in contact with the roller at the same position in the same direction. A drive roller curve conveyor using a V-belt, characterized in that an endless V-belt is stretched between each V-belt pulley and a drive pulley positioned on the drive rotation shaft and positioned substantially in the same plane as the V-belt pulley. (2) The drive unit comprises a drive pulley provided on the vertical axis of a drive source whose horizontal position can be automatically adjusted, and tension pulleys located on both sides of the drive pulley. Drive roller curve conveyor. (3) The drive roller curve conveyor according to claim 1, wherein the pulley axis of the V-belt pulley located directly below the tapered roller of the curved portion is vertical. (4) Claim (1) in which the pulley axis of the V-belt pulley located directly below the roller of the straight section is slightly inclined from the vertical direction.
Driven roller curve conveyor as described. (5) The drive roller curve conveyor according to claim (1), wherein a bearing portion formed on the frame of the roller shaft on the side that contacts the roller of the transmission pulley is capable of vertically displacing the roller shaft.