JPH0428604B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a magnetic belt in a magnetic continuous transport system.

[Background of the invention]

New transportation systems are being researched and proposed in order to respond to transportation demands that are diversifying year by year.

The magnetic continuous transportation system is one of the new transportation systems developed as a result of many years of research by the inventors of the present invention.

In this magnetic continuous conveyance system, as shown in a perspective view of a part of the outline in Fig. 1, magnetic belt conveyor units B are arranged at a predetermined interval between traveling paths A laid in parallel. On the other hand, an electromagnet D is attached to a vehicle C traveling on the traveling path A, and the magnetic belt Ba of the magnetic belt conveyor unit B is driven in a desired direction at a desired speed by a drive motor Bb. At the same time, the electromagnet D of the vehicle C is energized and attracted to the magnetic belt Ba, and the vehicle C is caused to travel by the attraction force between the electromagnet D and the magnetic belt Ba.

According to the results of research conducted by the inventors of the present invention, important points regarding the structure of the magnetic belt described above are as follows. That is, (a) a magnetic belt can not only ensure a large tractive force, but also reduce bending rigidity, and further reduce the heat generated by the belt during driving.

(b) Each magnetic member is capable of minimizing the bending stress of the belt and reducing the bending rigidity of the belt when the magnetic belt is subjected to a bending action on the pulley during operation of the magnetic belt.

(c) The magnetic members are firmly held on the belt body, and there is no risk that the magnetic members will separate from the belt body even if a large traction force and centrifugal force are applied to each magnetic member when the vehicle is running.

[Object of the Invention] An object of the present invention is to provide an excellent magnetic belt that can satisfy all of the above-mentioned important structural points of a magnetic belt.

[Structure of the invention]

That is, the present invention has a reinforcing layer embedded therein and a plurality of V-belt sections formed on the inner circumferential surface of the belt body, and on the outer circumferential surface of the belt body, magnetic members are placed in the width direction at intervals in the longitudinal direction of the belt main body. The V-belts are arranged in rows, and embedded portions in the belt body are formed on both sides of each of the magnetic members, and recesses are formed and arranged at intervals in the longitudinal direction on the inner peripheral side of each of the V-belt portions. The gist of the invention is a magnetic belt characterized by the following characteristics.

[Embodiments of the invention]

Hereinafter, the present invention will be specifically described by way of examples with reference to the drawings.

2 to 4 show a magnetic belt in a magnetic continuous transport system according to an embodiment of the present invention.
FIG. 3 is a partially cutaway perspective view of the same, FIG. 3 is a partially cutaway side view of the same, and FIG. 4 is a partially cutaway perspective view showing the reinforcing layer.

In the figure, E denotes a magnetic belt in a magnetic continuous transport system according to an embodiment of the present invention, in which a reinforcing layer 30 is embedded inside and a plurality of V-belt sections 11 are formed on the inner peripheral surface 10a, and the outer periphery of the belt body 10 is Face 10
b, magnetic members 20 are arranged in a row in the width direction at intervals in the longitudinal direction of the belt body 10, and embedded portions 21 in the belt body are formed on both sides of each magnetic member 20, respectively, It is constructed by forming and arranging concave portions 12 at intervals in the longitudinal direction on the inner peripheral side of each of the V-belt portions 11.

To further explain this structure, the belt main body 10 is made of a flexible material such as rubber, and has a plurality of stripes continuous in the longitudinal direction at regular intervals in the width direction on its inner circumferential surface 10a. A V-belt portion 11 is integrally formed.

In the present invention, as described above, in particular, the recesses 12 are formed and arranged on the inner peripheral side of each V-belt section 11 at intervals in the longitudinal direction thereof.

In this way, by forming and arranging the recesses 12 at intervals in the longitudinal direction on the inner peripheral side of each V-belt section 11, when the magnetic belt E is subjected to a bending action on the pulley during operation, , the bending stress of the present magnetic belt E can be further reduced.
As a result, the bending rigidity of the present magnetic belt E can be reduced, and the diameter of the pulley can be further reduced.

Moreover, in this embodiment, as shown in FIG. 3, the formation position of each of the recesses 12 is made to match the position of the space between each of the adjacent magnetic members 20. In other words, the center of each convex portion 12a formed between each concave portion 12 is made to coincide with the center of each magnetic member 20.

Therefore, the bending rigidity of the magnetic belt E described above can be reduced, and the diameter of the pulley can be further reduced.

Furthermore, in this embodiment, as shown in FIG.
It is arranged at a position facing both buried portions 21 of the magnetic member 20.

Therefore, when the present magnetic belt E is in operation, the stress that the vicinity of both buried portions 21 of the magnetic member 20 receives from the pulley of the drive motor that drives the present magnetic belt E can be greatly alleviated, and the stress that the pulley It is possible to reduce the interference of both buried portions 21 of the magnetic member 20 with respect to the magnetic member 20.
The durability near both buried portions 21 can be greatly improved, and noise can also be reduced.

Further, in this embodiment, as shown in the figure, a belt main body 10 including the V-belt portions 11 and 11s is shown.
A cover cloth 11 made of plain-woven cotton cloth and rubber is provided to cover the entire inner circumferential surface 10a of the
This cover cloth 11a prevents cracks in each V-belt section 11, 11s, and also enables appropriate frictional force with the pulley of the drive motor to be obtained when driving the magnetic belt E. It's getting old.

Further, as shown in FIGS. 2 and 3, on the outer circumferential surface 10b of the belt body 10 described above, the belt body 10
In this embodiment, each magnetic member 20, which is arranged in a row in the width direction at a constant interval in the longitudinal direction, is a strip-shaped iron piece with the required length, width, and height. Embedded portions 21 in the belt main body 10 are formed on both sides thereof.

The attachment of each magnetic member 20 to the belt main body 10 is performed as shown in the figure.
1 is buried in the belt body 10, and the upper surface side of both buried portions 21, that is, the belt body 10
A side reinforcing layer 30 (described later) is provided on the outer circumferential surface 10b side of the
By arranging b over the entire circumference of the belt body 10, both buried portions 21 are firmly held on the belt body 10, and furthermore, both buried portions 21 are made of rubberized blind cords (the number of cords is approximately 4). are fastened to each other by a string-like locking member 40,
A magnetic member 20 is firmly attached to the belt body 10 together with a center reinforcing layer 30a to be described later.

Therefore, even when a large traction force and centrifugal force are applied to each magnetic member 20 when the vehicle is running, there is no fear that the magnetic member 20 will separate from the belt body 10.

Further, as described above, the string-shaped locking member 40 works in conjunction with the center reinforcing layer 30a to prevent the magnetic member 20 from separating from the belt body 10 during operation of the magnetic belt E, and furthermore, This has the effect of firmly fixing each magnetic member 20 so that it can maintain a predetermined position during manufacturing of the present magnetic belt E, that is, during molding and vulcanization.

Further, as described above, since the magnetic members 20 are arranged in a row in the width direction at regular intervals in the longitudinal direction of the belt main body 10, the magnetic belt E is subjected to a bending action on the pulley during operation. At this time, the bending stress of the magnetic belt E can be minimized. As a result, the bending rigidity of the present magnetic belt E can be reduced, and the diameter of the pulley can be reduced.

Next, the reinforcing layer 30 will be explained. As shown in FIG. As described above, the center reinforcing layer 30a is embedded in the upper surface side of both the left and right buried portions 21 of each magnetic member 20, that is, on the outer circumferential surface 10b side of the belt main body 10, and holds each magnetic member 20 firmly on the belt main body 10. and a side reinforcing layer 30b.

This center reinforcing layer 30a and side reinforcing layer 30
As shown in detail in FIG. 4, the reinforcing layer 30 consists of reinforcing cords 31a arranged at intervals in the width direction of the belt body 10, and a rubber compound 31b having good adhesion to the cords. On the outer peripheral surface of the main reinforcing layer 31 formed by calender coating,
To cover this, a breaker layer 32 formed by calender-coating a rubber compound 32b is integrally attached to reinforcing cords 32a arranged in a blind-like manner.

The main reinforcing layer 31 mentioned above is formed to have a thickness of about 5 mm in this embodiment, and the reinforcing cords 31a are made of steel cords with a diameter of 2.8 mm and a tensile strength of 800 kg per piece. ing.

However, it goes without saying that a synthetic resin cord such as a polyester cord, nylon cord, or Kevlar cord may be used as the reinforcing cord 31a.

Further, the breaker layer 32 is formed to have a thickness of about 1 mm in this embodiment, and the reinforcing cord 32a
840D/2, 40 pieces/50mm nylon cord (polyester cord, textile cord, etc. may also be used) is used, and this reinforcing cord 3
The cord angle (crossing angle) of the reinforcing cord 2a with respect to the reinforcing cord 31a is 45 to 70 degrees.

This breaker layer 32 is a main reinforcing layer 31 constituting the reinforcing layer 30 when manufacturing the magnetic belt E.
The reinforcing cord 31a forming the main reinforcing layer 31 acts as a stabilizing layer to prevent the reinforcing cord 31a from being disturbed by external forces, etc., and furthermore, the reinforcing cord 3 constituting the main reinforcing layer 31 is
It has the effect of acting as a buffer band that prevents separation between 1a and the rubber compound 31b. Therefore, when used under low load and low stress, it is not necessarily necessary to use the breaker layer 32.

〔Effect of the invention〕

Since the present invention is configured as described above, it has the following effects. That is, (a) since the belt main body has a plurality of V-belt sections formed on its inner circumferential surface, not only can a large traction force be ensured, but also the bending rigidity of the magnetic belt can be reduced and the diameter of the pulley can be reduced. Furthermore, the heat generated by the belt during driving can be reduced, and durability can be greatly improved.

(b) In particular, by forming and arranging concave portions at intervals in the longitudinal direction on the inner peripheral side of each V-belt portion, when the magnetic belt is subjected to a bending action on the pulley during operation, the magnetic belt The bending stress of the magnetic belt can be further reduced. As a result, the bending rigidity of this magnetic belt can be reduced,
The diameter of the pulley can be further reduced.

(c) Since the magnetic members are arranged in rows in the width direction at regular intervals in the longitudinal direction of the belt body, when the magnetic belt is subjected to bending action on the pulley during operation, the magnetic belt bends. Stress can be minimized. Therefore, the bending rigidity of the present magnetic belt can be reduced.

(d) Since the magnetic member has embedded portions in the belt body on both sides thereof, both of these buried portions can be embedded in the belt body, and both buried portions can be firmly held in the belt body with a reinforcing layer. I can do it. Therefore, even if large traction force and centrifugal force act on each magnetic member when the vehicle is running, there is no fear that the magnetic member will separate from the belt body.

[Brief explanation of drawings]

FIG. 1 is a perspective explanatory diagram showing an overview of the magnetic continuous transport system, and FIGS. 2 to 4 show magnetic belts in the magnetic continuous transport system according to embodiments of the present invention. A perspective explanatory view with a part cut away, FIG. 3 is a side view explanatory view with a part cut away from the same as above,
FIG. 4 is a partially cutaway perspective explanatory view showing the reinforcing layer as described above. 10... Belt main body, 10a... Inner circumferential surface of the belt main body, 10b... Outer circumferential surface of the belt main body, 11...
... V-belt part, 12 ... Concave part of V-belt part, 20
... Magnetic member, 21 ... Buried part, 30 ... Reinforcement layer.

Claims (1)

[Claims] 1 A reinforcing layer is buried inside and multiple Vs are formed on the inner peripheral surface.
Magnetic members are arranged in the width direction at intervals in the longitudinal direction of the belt body on the outer circumferential surface of the belt body forming the belt portion, and at the same time, on both sides of each of the magnetic members, embedded parts in the belt body are respectively provided. 1. A magnetic belt, characterized in that concave portions are formed on the inner peripheral side of each of the V-belt portions and are spaced apart from each other in the longitudinal direction thereof.