JPH07285632A - Belt conveyor device having speed distribution - Google Patents

Abstract

PURPOSE:To provide a belt conveyor device allowing the speed distribution of high speed transfer and low speed transfer by providing a plurality of driving rollers differed in diameter stepwise, and an endless conveyor belt engaged with a plurality of rotation transmitting rollers, driven at a speed corresponding to the circumferential speed of each driving roller to constitute a plurality of lanes. CONSTITUTION:When a driving shaft 2 is rotated at a fixed speed by a motor, the circumferential speed of driving rollers 3 are differed stepwise in proportion to the respective diameters. Rotation transmitting rollers 4 transmit these circumferential speeds to conveyor belts 4 as they are, and the conveyor belts 4 are traveled at speeds differed every lane, Thus, an optional speed distribution V can be provided in the direction orthogonal to the advancing direction of the conveyor belts 4 by selecting the diameter of the driving rollers 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to luggage transportation, general industry,
The present invention relates to a belt conveyor device having a speed distribution that can be used for transportation facilities and the like.

[0002]

2. Description of the Related Art Belt conveyors are used in various fields such as transportation of goods and movement of people. Conventionally used belt conveyors generally have a plurality of rollers 21 with a predetermined width as shown in FIG. The belt conveyor 20 of FIG.

[0003]

By the way, although the belt conveyor is more efficient at high speed for the purpose of transportation and movement, it is easier to handle when it is loading and unloading, for example. It is convenient. However, the conventional belt conveyor device as shown in FIG. 11 cannot satisfy both the requirements of efficiency and ease of handling when loading and unloading luggage.

The present invention has been made to solve the above-mentioned problems, and provides a belt conveyor device having a speed distribution that enables high-speed transfer and at the same time realizes easy loading / unloading by low-speed transfer. The purpose is to provide.

[0005]

SUMMARY OF THE INVENTION A belt conveyor device having a velocity distribution according to the present invention comprises a plurality of drive rollers each having a stepwise different diameter and fixed to one drive shaft driven by a drive source. A plurality of rotation transmitting rollers that are engaged with the rollers and have different diameters in stages, and a plurality that are engaged with the respective rotation transmitting rollers and are driven at a speed corresponding to the peripheral speed of each driving roller to form a plurality of lanes. Endless conveyor belt.

[0006]

According to the present invention, the belt conveyor is divided into a plurality of lanes, the peripheral lane runs at a low speed to facilitate loading and unloading from the peripheral lane, and the central lane allows efficient transfer of objects to be transported. High-speed transfer and easy loading and loading are possible by changing the speed stepwise so that the transfer target object between the peripheral lane and the central lane can be smoothly moved in the middle. It can be realized at the same time.

[0007]

1 to 3 are views showing an embodiment of the present invention.
1 is a perspective view, FIG. 2 is a sectional view taken along line AA ′, and FIG. 3 is a side view of FIG. 1. In the figure, 1 is a motor, 2 is a drive shaft, 3 is a drive roller, 4 is a conveyor belt, 6 is a shaft, 7 is a support frame, 8
Is a bearing and 9 is a connecting plate.

A drive shaft 2 connected to a motor (or other power source) 1 is fixed with several drive rollers 3 having different diameters in stages. The endless conveyor belt 4 on which the object to be conveyed is placed is divided into a plurality of lanes so as to correspond to the width and the number of the driving rollers 3, and between the driving roller 3 and the endless conveyor belt 4, the driving roller and the belt are separated. Several rotation transmission rollers 5 having different diameters are provided on the upper side and the lower side of the drive roller 3 so as to be engaged with both.
The drive roller 3 has a maximum diameter in the central portion and gradually decreases in diameter toward the peripheral portion, while the rotation transmission roller has a minimum diameter in the central portion and gradually increases in diameter toward the peripheral portion. The sum of the diameters of each pair of the drive roller 3 and the rotation transmitting roller 5 is constant. Therefore, the surface of the conveyor belt 4 is flush with each lane. The drive shaft 2 is rotatably supported by bearings 8 on support frames 7 on both sides, and the rotation transmission roller 5 is rotatably positioned by a shaft 6. The shaft 6 serves as a central axis of each rotation transmitting roller, and the central axes of the respective rotation transmitting rollers are connected to each other by a connecting plate 9, and the outermost shaft 6
Are fixed by the support frame 7.

In such a structure, when the drive shaft 2 is rotationally driven by the motor 1 at a constant speed, the drive roller 3
The peripheral speeds of the rollers vary stepwise in proportion to the respective diameters, the rotation transmitting roller 5 transmits the peripheral speeds to the conveyor belt 4 as they are, and the conveyor belts travel at different speeds for each lane. Therefore, depending on how the diameter of the driving roller 3 is selected, it is possible to give an arbitrary velocity distribution V in the direction orthogonal to the traveling direction of the conveyor belt.

In this embodiment, the central lane has the maximum speed, and the peripheral lane has a lower speed, so that the central lane can be transported at high speed, and the peripheral lane can carry the cargo. If you unload
It can be done easily due to the low speed. The force may be transmitted between the drive roller 3, the rotation transmission roller 5, and the conveyor belt 4 by friction between the surfaces or by meshing tooth-shaped members such as gears.

FIG. 4 is a view showing another embodiment of the present invention, in which the guide 10 for guiding further loaded objects to be conveyed to the high-speed central lane is provided on the belt conveyor device shown in FIGS. A guide 11 for guiding an object to be unloaded from a central lane to a peripheral lane is provided. When such a guide is provided, the luggage is loaded from both sides of the conveyor belt. Is automatically sent to the high-speed central lane and conveyed, and is guided to the low-speed peripheral lane automatically by the guide 11 at the position to be unloaded, so that the unloading can be performed easily.

FIG. 5 shows another embodiment of the present invention, which is the same as that shown in FIGS. 1 to 3 except that one side of the conveyor belt is supported by a fixed wall 12. . When one side is fixed by the fixed wall 12 as in this embodiment,
Since the fixed wall 12 and the high-speed belt are close to each other, the object to be conveyed may come into contact with the fixed wall 12.
A cushioning roller 11 is attached at an appropriate interval to protect the object to be conveyed from contact with the fixed wall.

FIG. 6 is a view showing another embodiment of the present invention. FIGS. 6 (a) and 6 (b) are views each showing a part of a side sectional view, and FIG. 6 (c) is a vertical sectional view. Is.

In this embodiment, the diameter of the drive roller 3 is increased in the central lane as in the case of the above-mentioned embodiment, but the diameter of the rotation transmission roller 5 can be appropriately selected so that the belt The top surface is macroscopically slightly inclined. For example, as shown in FIG. 6A, the diameter of the rotation transmission roller 5 is set so that the surface of the peripheral lane is high and the surface of the central lane is low in the loading area, and FIG. As shown in, in the unloading area, the diameter of the rotation transmission roller 5 is set so that the surface of the peripheral lane is low and the surface of the central lane is high. With such a configuration, the object to be conveyed can be guided to the central lane or the peripheral lane without using the guide shown in FIG.

FIG. 7 is a diagram showing an embodiment in which the belt conveyor device of the present invention is used for transportation. In the present embodiment, the above-described belt conveyor device of the present invention is installed on the floor and the ceiling so that the lanes having the same speed correspond to each other, and the hanging leather 14 is provided on the conveyor belt on the ceiling side at appropriate intervals. Thus, a person can easily get on and off from a low-speed peripheral lane, and can move at high speed if caught in the hanging leather of a high-speed central lane, and can be used as a high-speed moving sidewalk.

FIG. 8 shows a plurality of belt conveyor devices of the present invention connected in series. It is possible to provide a velocity distribution in the traveling direction as a whole by connecting a plurality of slightly different traveling speeds. A connecting roller 15 is arranged between each belt conveyor device. With such a configuration, the central belt conveyor device in the traveling direction can be moved at a high speed and at a lower speed as it approaches both ends, so that it is possible to easily unload and load not only on both sides of the belt conveyor, but also at both ends in the traveling direction. You can In this case, by arranging the connecting roller 15 at the joint between the conveyor belts, the connection between the conveyor belts becomes smoother, and the object to be conveyed can be prevented from being caught at the joint.

As the connecting roller 15, for example, as shown in FIG. 9, a roller bearing 17 which is rotatable at a corner of the spacer body 16 which becomes wider as it goes upward.
10 or a cylindrical bearing 18 around which a roller bearing 19 is provided, as shown in FIG.

[0018]

As described above, according to the present invention, high-speed transportation and easy loading and unloading can be performed at the same time. Such a belt conveyor device can be used for transporting goods in various industries. It can also be applied to transportation facilities.

[Brief description of drawings]

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

FIG. 2 is a sectional view taken along the line AA ′ of FIG.

3 is a side view of FIG. 1. FIG.

FIG. 4 is a diagram showing another embodiment of the present invention.

FIG. 5 is a diagram showing another embodiment of the present invention.

FIG. 6 is a diagram showing another embodiment of the present invention.

FIG. 7 is a diagram showing an example in which the belt conveyor device of the present invention is used for transportation.

FIG. 8 is a diagram showing an example in which a plurality of belt conveyor devices of the present invention are connected in series.

FIG. 9 is a diagram showing an example of a connecting roller.

FIG. 10 is a diagram showing an example of a connecting roller.

FIG. 11 is a diagram showing a conventional belt conveyor device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Motor, 2 ... Drive shaft, 3 ... Drive roller, 4 ... Conveyor belt, 6 ... Shaft, 7 ... Support frame, 8 ... Bearing, 9 ...
Connecting plate.

Claims (5)

[Claims] 1. A plurality of drive rollers each having a stepwise different diameter and fixed to one drive shaft driven by a drive source, and a plurality of rotation transmissions which are engaged with the drive rollers and have a stepwise different diameter. A belt conveyor device having a speed distribution composed of a roller and a plurality of endless conveyor belts which are engaged with the respective rotation transmitting rollers and are respectively driven at a speed corresponding to a peripheral speed of each driving roller to form a plurality of lanes. 2. The apparatus according to claim 1, wherein the drive roller has a maximum diameter in the center portion in the drive shaft length direction and a minimum diameter in the peripheral portion, and the central lane has a high speed and the peripheral lane has a low speed. A belt conveyor device having a velocity distribution characterized by the following. 3. The apparatus according to claim 2, wherein the peripheral lane is provided with a guide for guiding the object to be conveyed from the central lane to the central lane, and the guide is provided with a speed distribution. Belt conveyor device. 4. The apparatus according to claim 1, wherein the diameter of the rotation transmission roller is set so that the upper surface of the conveyor belt on the peripheral lane side is higher or the upper surface of the conveyor belt on the peripheral lane side is lower. A belt conveyor device having a velocity distribution, characterized in that a lane upper surface is inclined in a direction orthogonal to the direction. 5. The belt conveyor device according to claim 1 is connected in series, a spacer with a bearing is interposed in the gap between the joints, and the traveling speed of each belt conveyor device is made different so that a speed distribution is provided in the traveling direction. A belt conveyor device having a velocity distribution characterized by: