JP2003073061A - Belt conveyor device for conveyance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a carrying capacity from being reduced by facilitating and making it safer to get on and off a moving pavement. SOLUTION: A belt 3 for conveyance is formed of a specified extendable elastic body, and endlessly suspended from drive rollers 6 disposed at specified intervals. The belt 3 for conveyance is engaged with the drive rollers 6 so that a slippage does not occur therebetween, and formed so that the belt can be run. The endless belt 3 for conveyance is formed so that a running speed is slow at a platform part and gradually accelerated or decelerated at the other parts to drivingly running the belt 3 for conveyance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor belt conveyor device in the conveyor field.

[0002]

2. Description of the Related Art In recent years, so-called moving walkways have been installed at airports and urban centers for the convenience of pedestrians and are used by many pedestrians along with escalators.

In this moving sidewalk, a belt conveyor that is long from the entrance to the exit is usually arranged endlessly so that a pedestrian can get on and off the entrance and exit at a constant speed so that the vehicle can be transported as fast as possible. Being driven.

[0004]

[Problems to be Solved by the Invention] For ordinary people such as young people and middle-aged people, there is no problem in getting on and off the moving walkway, and if there is a rush, there are quite a few people who walk further on the moving walkway. Many.

However, it is not easy for an old man, a child, a woman with a baby to get on and off a moving walkway,
There are times when it is necessary to avoid the use of moving sidewalks for safety reasons.

[0006] As described above, getting on and off the moving sidewalk is not a problem for ordinary people, and rather, the speed during boarding seems to be slow, but for old people and children, the speed of the entrance and exit is fast and Hesitated to use it.

Therefore, a long belt conveyor is used as the main part of the moving walkway, and a plurality of belt conveyors having a stepwise difference in speed at the front and rear entrances and exits are connected in series to allow elderly people, children, etc. Something that can be safely used to get on and off is proposed.

However, when such moving sidewalks are connected in series, it is necessary to drive and control them in synchronism with each other, resulting in a complicated structure and complicated speed control.
There was a desire for a moving walkway that everyone could easily get on and off.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and in order to solve the above-mentioned problems, a conveyor belt is formed of a required elastic material and has a predetermined size. The transport belt is suspended endlessly on the drive rollers arranged at intervals, and the transport belt is engaged with the drive roller so as not to cause slippage to form the transport belt so that it can travel. (EN) Provided is a conveyor belt conveyor device characterized in that an endless conveyor belt is slowed down at its entry / exit portion, and is otherwise accelerated or decelerated to drive the conveyor belt for traveling.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION In the conveyor belt conveyor device of the present invention, the conveyor belt is formed of a required elastic material, and the conveyor belt is endlessly formed on drive rollers arranged at predetermined intervals. While suspending, the drive belt is engaged with the transport belt so as not to cause slippage to form the transport belt so that the transport belt can travel freely. It is characterized in that the transport belt is driven to travel while being accelerated or decelerated.

The conveyor belt conveyor device 1 can be applied to the above-described moving walkway 2 and the conveyor device for articles, and the principle thereof is as shown in FIGS. 1 to 3 for endless conveying of a predetermined width. Driving source rollers 4 and 5 (one each in the front and rear direction in the figure) of appropriate output are arranged in front of and behind the belt 3, and the driving rollers are arranged at a constant interval P between them to correspond to the length of the desired sidewalk 2, etc. 6 is provided to convey belt 3 endlessly
Are suspended.

The drive source rollers 4 and 5 are connected to the drive source shafts 7 and 8 and electric motors 9 and 10 having a required output, respectively, so that the conveyor belt 3 can be driven and controlled at a required speed. .

The electric motors 9 and 10 may be provided with a speed reducer having a predetermined reduction ratio, or a servomotor may be used to delicately control the speed, and a detection sensor detects a traffic jam condition on the conveyor belt 3. The conveyor belt 3 can be controlled to be driven at a required traveling speed by slowing or speeding it up.

The conveyor belt 3 can be made to have a predetermined width and a predetermined length according to the sidewalk 2 and article conveyance, and can be expanded and contracted at a predetermined ratio of 5 to 20% as described below. The elastic material can be conveyed by laminating it in a single layer or multiple layers, and if necessary, a reinforcing cord made of a natural rubber thread or a synthetic rubber thread, which can expand and contract according to the belt main body, can be mounted inside to increase the strength.

Further, as shown in FIGS. 2 and 3, racks 11 and 12 are provided on the conveying belt 3 by joining toothed belts of required widths to both side ends and the center of the back surface, and drive the belts. Source rollers 4 and 5, gears 13 and 14 of a predetermined module disposed on the drive roller 6 side, and dislocated gears 15 and 1,
6 are engaged and suspended.

The racks 11 and 12 of the above-mentioned toothed belt are also
Similar to the above-mentioned transport belt 3, a natural rubber material or a synthetic rubber material is laminated to be expandable and contractible at a predetermined ratio and is formed by laminating one or more layers. The strength can be increased by attaching a reinforcing cord made of or synthetic rubber thread.

Further, as shown in FIGS. 2, 3 and 4, projection guides 17 each having a V-shaped cross section are provided on the rack 11 on the back side of the above-described transport belt 3 so that the corresponding drive rollers 6 are driven. It is preferable that the gear 15 is provided with a recess guide 18 so as to be engaged with the gear 15 so that the conveyor belt 3 does not meander.

Particularly, as shown in FIGS. 2, 3 and 4, the rack 1
By making all the widths of 1 the same, the gears 15 and 16 of the drive roller 6 can be made the same, the commonality of parts can be improved, and the manufacturing cost can be reduced, which is preferable.

By engaging the carrying belt 3 with the rack and pinion as described above, it can be preferably applied to carrying a moving walkway or carrying heavy objects. As shown in FIG. 5, the carrying belt 3 is a flat belt. Alternatively, the back side may have an appropriate uneven surface, and the driving rollers 15 and 16 may have locking surfaces such as knurled surfaces, and may be applied to a lightweight object having a small elastic resistance exerted on the conveyor belt 3.

Then, as shown in FIG. 1, the drive source shafts 7 and 8 of the drive source rollers 4 and 5 for suspending and driving the conveyor belt 3 and the roller shaft of the drive roller 6 have the same diameter or large and small diameters of pulleys 19 and sprockets. Via a drive transmission means 20 such as a drive belt or a drive chain via a belt train, and the first and second, second and third, third
About the 4th and 4th ... these drive rollers 6
Is set to a predetermined acceleration ratio by suspending the pulley diameter and the like, and when it exceeds the center of the conveyor belt 3, on the contrary, the drive roller 6 is set to a predetermined reduction ratio to decelerate the conveyor belt 3.
Each is suspended to drive.

With such a structure, as shown in FIG. 6, it is possible to travel the slowest at the entrance of the transport belt 3 and the stacking portion side, and gradually run faster as the transport belt 3 advances, and conversely from the center portion. Can be gradually delayed by the drive transmission means 20 such as a belt suspension having a predetermined reduction ratio, and can be made the slowest at the exit of the conveyor belt 3 and the unloading section side, so that getting on and off and unloading are easy, and the transportation speed is increased as a whole. You can

Since the conveyor belt 3 is expanded and contracted as described above, as shown in FIG. 7, the gear 15 of the drive roller 6,
16 can be gradually displaced so as to have a predetermined pitch a ′ = a (1 + ζ) and securely engaged with the racks 11 and 12 of the conveyor belt 3 to be driven as described above. As shown in FIGS. 1 and 2, it is preferable that the front surface side of the conveyor belt 3 is pressed by the pressing roller 22 installed in the side trunk portion 21. Where ζ = (N ₁ −N
₂ ) / N ₂ , N ₁ and N ₂ are the rotational speeds of the first and second drive rollers 6, respectively, and a is the respective gears 15 and 16
Is the pitch before the dislocation.

As shown in FIG. 6, the expansion and contraction of the conveyor belt 3 is performed by rotating the n-th driving roller 6 at the rotation speed Nn, the peripheral speed Vn, the driving roller number R, the pitch P between the driving rollers, and ζ = (N ₁ -N _2).
) / N ₂ and the belt elongation rate ε, the belt elongation ΔXn is ΔX on the speed increasing zone (n = 1 to 1/2 * R) side.
n = (n-1) * P * ε, deceleration zone (n = 1/2 * R +
1 to R) side, ΔXn = R / 2 * P * ε− (R / 2−
1) * P * ε.

The conveyor speed Vn of the belt on the nth driving roller 6 is on the speed increasing zone (n = 1 to 1/2 * R) side.

[Equation 1] And on the deceleration zone (n = 1/2 * R + 1 to R) side,
Decelerate in the opposite direction to the above acceleration zone.

Further, the belt acceleration α _n between the n-th and the (n + 1) -th is

[Equation 2] Then, on the side of the deceleration zone (n = 1/2 * R + 1 to R), the vehicle decelerates in the opposite direction to the above acceleration zone. As is clear from the above equation, the acceleration can be reduced by increasing the pitch of the drive roller 6.

Since the amount of expansion / contraction, speed, and acceleration of the belt can be calculated in this manner, the required specifications can be set according to the purpose.

Incidentally, such a transport principle can be applied to a so-called moving walkway, but can also be applied to transporting articles,
At that time, bottles and laminated boxes can be conveyed without falling.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 3 show one practical example of the present invention, which is constructed as described above and has a driving roller 6 as shown in FIG.
Number of 40, sidewalk distance 100m, drive roller 2.
The running speed was calculated as 5 m.

Assuming that the driving pulley ratio N ₁ / N ₂ = N ₂ / N ₃ = ... = 1.1 and the speed V ₀ at the start and end points of the driving roller 6 is V ₀ = 10 mm / sec = 0.6 m / min. The velocity V ₂₁ at the center of the transport belt 3 is V ₂₀ = V ₀ * (1 + 0.1) ²⁰ = 6 7.2 mm / sec = 4.03 m / min.

Assuming that the driving pulley ratio N ₁ / N ₂ = N ₂ / N ₃ = ... = 1.25 and the speed V ₀ at the start and end points of the driving roller 6 is V ₀ = 25 mm / sec = 1.5 m / min. ,
The speed V ₂₁ at the center of the conveyor belt 3 is V ₂₀ = V ₀ *
(1 + 0.25) ²⁰ = 2167 mm / sec = 130 m / min.

By setting the parameters in this way, it is possible to make a trial calculation, and as shown in FIGS. 9, 11, and 12, the speed with respect to the rotational speed, the speed at the driving roller portion, and the acceleration can be illustrated, and the required sidewalk can be shown. Can be set.

In the above, the transport belt is accelerated,
Next, an example of decelerating has been described, but it is also possible to accelerate and maintain constant speed as shown in FIG. 13, and then decelerate, accelerate only, or decelerate.

Further, although the drive pulleys are connected by a belt suspension or the like in the above, a modified mode is implemented in accordance with the spirit of the present invention, such as a servomotor being axially attached to an appropriate place to directly control the speed. Is something that can be done.

[0034]

As described above, according to the present invention, a conveyor belt for a moving walkway or the like can be controlled at a slow speed at which passengers can easily get on and off at entrances and exits, and the passengers can get on and off safely. In the middle or the like, it can be transported at high speed, and can be transported without reducing the transportation speed.

Further, the transport speed is reduced as described above by sequentially accelerating the endless transport belt from the entrance to the inside and decelerating sequentially from the center to the exit to drive the transport belt. It can be transported without.

Then, the adjacent drive rollers are connected by a drive transmission means such as a drive belt suspension having a predetermined acceleration ratio or a deceleration ratio to drive the conveyor belt, thereby ensuring that the adjacent drive rollers have a predetermined rotation speed. Can be driven to rotate, and the conveyor belt can be appropriately expanded and contracted so that the conveyor can be driven as described above.

Furthermore, racks such as toothed belts are provided on both sides of the back side of the conveyor belt of a predetermined width, and the gears of the drive rollers are engaged with the racks so as to face the gears of the drive rollers on both sides. By arranging a roller or the like on the upper surface side of the transfer belt to press the transfer belt, the transfer belt can be reliably driven through the gears of the drive rollers, and the transfer belt expands and contracts. The belt can be reliably driven to run.

Furthermore, the conveyor belt is a flat belt, the surface of the driving roller is a locking surface such as a knurled surface, and the pressing roller is provided on the upper surface side of the transportation belt facing the locking surface of the driving roller. By arranging the conveyor belt with a predetermined pressing force to prevent the conveyor belt from slipping, the conveyor belt as described above can be moved at a slow speed so that it can be easily loaded and unloaded by the unloading section. It can be loaded and unloaded, and can be transported at a high speed in the middle or the like, and can be transported without reducing the transportation speed.

[Brief description of drawings]

FIG. 1 is a schematic diagram for explaining the principle of one embodiment of the present invention,

FIG. 2 is a side sectional view for explaining the above,

FIG. 3 is a side sectional view (a) of the conveyor belt and a partially enlarged sectional view (b) for explaining an engaging portion;

FIG. 4 is a side sectional view of another embodiment of the above-mentioned conveyor belt,

FIG. 5 is a cross-sectional view of a drive roller portion of another embodiment of the above-described transport belt,

FIG. 6 is a velocity diagram of the above-mentioned transport belt,

FIG. 7 is an explanatory view of the dislocation gears of the drive roller portion of the above.

FIG. 8 is an explanatory view of elongation and speed of the above-mentioned transport belt,

FIG. 9 is a speed relationship diagram with the driving roller section of the above,

FIG. 10 is an explanatory diagram for trial calculation of specifications of the above-mentioned transport belt,

FIG. 11 is a velocity diagram of the above,

FIG. 12 is an acceleration diagram of the above.

FIG. 13 is another velocity diagram of the above-mentioned transport belt.

[Explanation of symbols]

1 ... conveyor belt conveyor 2 ... sidewalk 3 ...
Conveying belts 4, 5 ... Driving source rollers 6 ... Driving rollers 11, 12 ... Racks 13, 14, 1
5, 16 ... Gears

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B66B 23/10 B66B 23/10 F term (reference) 3F023 AA03 BA02 BA10 BC01 CA02 3F024 CA04 DA03 3F321 BA01 BA06 CB02 CB08

Claims (5)

[Claims] 1. A transport belt is formed of a required elastic material, and the transport belt is suspended endlessly on a drive roller arranged at a predetermined interval, and the transport belt is mounted on the drive roller. The conveyor belt is formed so as to be free to run so as not to cause slippage, and the above-mentioned endless conveyor belt is slow at the entry / exit portion, and in other cases, the conveyor belt is driven to travel by accelerating or decelerating sequentially. A conveyor belt conveyor device characterized by the above. 2. A conveyor belt for a sidewalk or the like is provided with a rack such as a toothed belt, and these racks are formed of elastic materials capable of expanding and contracting to drive rollers arranged at predetermined intervals. Endlessly, the gears arranged on the drive roller are engaged with the racks of the above-mentioned transport belt to form the transport belt so that the transport belt can run freely, and the endless transport belt is sequentially transferred from the entrance to the inside. 2. The conveyor belt conveyor device according to claim 1, wherein the conveyor belt is driven to travel by accelerating and then gradually decelerating from the middle side to the exit. 3. A conveyor belt is driven by connecting adjacent drive rollers by a drive transmission means such as a drive belt suspension having a predetermined acceleration ratio or speed reduction ratio.
The conveyor belt conveyor device according to. 4. A rack such as a toothed belt is provided on both sides on the back side of a conveyor belt of a predetermined width, and the gears of the drive rollers are engaged with the racks so as to face the gears of the drive rollers on both sides. 4. The conveyor belt conveyor device according to claim 1, wherein a pressing roller is arranged on the upper surface side of the conveyor belt to press the conveyor belt. 5. The conveyor belt is a flat belt, and the driving roller has a locking surface such as a knurled surface, and a pressing roller is provided on the upper surface side of the conveyor belt facing the locking surface of the driving roller. 2. The conveyor belt is provided with a predetermined pressing force to prevent slipping on the conveyor belt.
5. The conveyor belt conveyor device according to any one of 1 to 4.