JPH11334826A - Catenary conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a catenary conveyor which can be bent in any direction in accordance with the conditions of the place of installation, can be driven effectively and smoothly at the bend, does not require provision of a connection part etc., and can transport objects for a long distance certainly using a single piece of conveyor unit. SOLUTION: The center line L of a bend of a transport belt 10 is inclined with respect to the vertical direction, and thereby rollers 25 supporting the side ends 11 of the belt 10 are put in tight contact with the belt 10 at the bend of the belt 10, and the torque of the rollers 25 is transmitted to the belt 10 effectively so that the belt 10 is driven smoothly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor that wraps and conveys a conveyed object by forming both ends of an endless conveyer belt into a water droplet shape.

[0002]

2. Description of the Related Art Conventionally, as a conveyor for transporting loose objects, a trough-type flat belt conveyor for stacking and transporting articles on a belt, a pipe conveyor for wrapping and transporting articles in a pipe shape, Alternatively, a box belt conveyor or the like is generally known.

[0003]

By the way, in conventional conveyors such as the above-mentioned trough-type conveyor and pipe conveyor, a carrier roller for supporting a belt in order to directly support the own weight of the conveyor and a conveyed object by the carrier roller. Must be set at a small pitch of 1 m or less. For this reason, there are problems that the number of carrier rollers increases, the structure becomes complicated, and maintenance is difficult. Except for the pipe conveyor, there is also a problem of dust of the conveyed articles on the belt. That is, because the trough type conveyor can only perform linear conveyance, when the conveyance path of the conveyed material is curved, it is necessary to connect a plurality of conveyors, and in the connecting portion between the conveyors,
It is necessary to transfer the goods using a chute. Since dust is generated when transferring the conveyed goods using the chute, it is necessary to install a dust collector at the connecting portion to capture and collect the dust, and to remove the dust attached to the belt. Therefore, it is necessary to provide a rinsing device, and there is a problem that the equipment becomes large, and construction costs and operation costs increase.

[0004] In order to solve this problem, the present inventors have conducted intensive studies, and as a result, a new catenary which can be conveyed over a long distance by one conveyor even if there is a curved portion in the conveying path. Conveyor developed. This catenary conveyer is a conveyer that wraps and conveys a conveyed object by forming both ends of an endless conveyer belt into a water droplet shape, and supports the side end of the conveyer belt using a catenary. is there. In this catenary conveyor, if there is a curved portion in the transport path, it is necessary to bend the conveyor in an arbitrary direction without fail, and at this bent portion, the conveyor is efficiently and smoothly. Must be driven to convey the conveyed object.
The present invention has been made in view of the above circumstances, and it is possible to bend a conveyor in an arbitrary direction according to the conditions of an installation location, and to efficiently and smoothly drive the conveyor at the bent portion. It is an object of the present invention to provide a catenary conveyor that can transport a conveyed material reliably over a long distance by a single conveyor without requiring a connecting portion or the like.

[0005]

According to a first aspect of the present invention, a water drop is formed by joining both end portions of an endless transport belt.
A conveyor that wraps and conveys a conveyed object, supports a side end of the conveyor belt by using a catenary, bends the conveyor belt, and, at a bent portion of the conveyor belt, at a side end of the conveyor belt. The transport belt is driven by rotating the roller while supporting the portion by a roller, and the center line of the bent portion of the transport belt having a water droplet shape is inclined with respect to the vertical direction. According to the first aspect of the present invention, the center line of the bent portion of the conveyor belt is inclined with respect to the vertical direction, so that the roller supporting the side end of the conveyor belt at the bent portion of the conveyor belt. Between the roller and the conveyor belt, and the rotational force of the rollers is efficiently transmitted to the conveyor belt to drive the conveyor belt smoothly.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the present invention, and is an image of a mountain area of a system for transporting sediment deposited on a dam, FIG. 2 is a cross-sectional view of a supporting portion of a catenary conveyor of the system, and FIG. 3 is a catenary conveyor. 4 is a plan view of a bent portion of the catenary conveyor, FIG. 5 is a perspective view of a support portion of the catenary conveyor, and FIG.
Is a perspective view showing another example of a supporting portion of the catenary conveyor, FIG. 7 is a perspective view of a driving portion of the catenary conveyor, and FIG.
Is a perspective view of a driving support roller, and FIG. 9 is a perspective view of a side roller. In FIG. 1 to FIG. 7, reference numeral 10 denotes an endless transport belt having flexibility like a rubber belt. Overhang portions 12 are formed at both end portions 11 of the transport belt 10, and a high-strength core 13 such as a wire rope or carbon fiber is mounted inside the overhang portion 12. The transport belt 10 is opened in a flat belt shape at a loading section for receiving the transported article 1 and at an unloading section for discharging the transported article 1.
1 are combined with each other to form a water droplet shape in cross section, so that the article 1 is wrapped and conveyed.

In the transport section of the catenary conveyor, support sections 20 for the transport belt 10 are provided at appropriate intervals. The support portion 20 is provided on the upright supporting column 2.
1, a support arm 22 which is provided at the upper end of the column 21 so as to protrude in the horizontal direction, and is provided below the support arm 22 so as to be adjustable in the vertical direction, and supports the forward and return transport belts 10. And a pair of left and right side rollers 24 and support rollers 25 rotatably provided inside the roller mounting portions 23.

Each of the side rollers 24 is connected to the conveyor belt 1.
0, respectively, in contact with the side surface 14 of each overhang portion 12,
The conveyor belt 10 is supported and guided from left and right. The side roller 24 is rotatably supported by a mounting member 26 as shown in FIG. Further, the side surface 14 of each overhang portion 12 of the transport belt 10
Is formed as an inclined surface that inclines downward as it approaches the center line of the conveyor belt 10. Each of the support rollers 25 is installed so as to be inclined such that the outer peripheral surface thereof comes into contact with the lower surface 15 of the overhang portion 12, and due to this inclination, both end portions 11 of the transport belt 10 are pressed against each other. So that it adheres well. Further, in the support portions 20 (driving portions) at predetermined intervals (for example, every other portion) of the support portions 20, as shown in FIGS.
Are connected. The support roller 25 is rotatably supported by a mounting member 28 (see FIG. 8).

Further, as shown in FIG. 4, when the conveyor belt 10 is bent by the angle θ at the bent portion of the catenary conveyor, accordingly, as shown in FIG.
The lower part of the conveyor belt 10 is inclined outward from the bent part around the upper part of the conveyor belt 10 so that the center line L of the bent part of the conveyor belt 10 is inclined by an angle θ / 2 with respect to the vertical direction. It is made to let. This tilt adjustment
This is performed by adjusting the inclination angle of a roller mounting portion 23 provided at the lower portion of the support arm 22 so as to be adjustable in the vertical direction with a bolt. When it is not necessary to incline the roller mounting portion 23 with respect to the support arm 22 as in the linear portion of the catenary conveyor, the roller mounting portion 23 is oriented vertically so that the support arm 2
2 may be fixed.

In the catenary conveyor configured as described above, the support roller 25 of the support section 20 (drive section) is rotated by a rotation mechanism 27 at predetermined intervals so that the support roller 25 comes into contact with the support roller 25. Conveyor belt 1
Transfer 0. In this state, when the transported article 1 is thrown into the transport belt 10 in the loading section that is open in a flat belt shape, the transported article 1 is transported along with the transport of the transport belt 10. Then, in the conveyance section in the middle of the conveyance, the both end portions 11 of the conveyance belt 10 are put together to form the conveyance belt 10 into a water droplet shape, and the conveyed article 1 is conveyed by the conveyance belt 10.
It is wrapped inside and transported. In this case, since the load is shared and the transport belt 10 is dispersed and driven in the support section 20 (drive section) having the rotation mechanism 27, the belt tension can be reduced, and the length of the transport belt 10 can be reduced. The length (for example, 40 km) of the length (for example, 40 km) can be increased, and the force acting on the support roller 25 can be reduced. In addition, the output of each rotation mechanism 27 can be small, and the structure of each rotation mechanism 27 can be simple and at low cost.

Further, as shown in FIG.
In the bent portion of the catenary conveyor where 0 is bent by the angle θ, as shown in FIG. 3, the conveying belt 10 is conveyed such that the center line L of the bent portion is inclined by an angle θ / 2 with respect to the vertical direction. Since the lower portion of the conveyor belt 10 is inclined outward of the bent portion with the upper portion of the belt 10 as a center, the conveyor belt 10 is firmly pressed against the supporting roller 25 supporting and driving the conveyor belt 10. hand,
The transport belt 10 and the support roller 25 are securely in close contact.
Therefore, the rotational force of the support roller 25 rotated by the rotation mechanism 27 is efficiently transmitted to the transport belt 10, and the transport belt 10 is driven smoothly. As a result, the transport belt 10 can be easily bent at the bent portion of the catenary conveyor, and the transported object 1 can be transported in a predetermined direction. The road can be flexibly bent. Furthermore, in each support portion 20, the support roller 25 supports the upper portion (side end portion 11) of the transport belt 10, so that the transport belt 10 and the transport object 1 between the support portions 20 are supported.
Hang down like a catenary. Therefore, each support 2
The weight of the transport belt 10 and the transported object 1 between 0 are supported by the strength of the core 13 of the overhang portion 12 of the transport belt 10 according to the same principle as the suspension bridge. Thereby, the installation interval (catenary span) of the support portions 20 can be increased (for example, 10 m or more) within a range permitted by the strength of the core body 13 of the transport belt 10, and the number of the support rollers 25 is significantly reduced. be able to.

The conveyed article 1, which has been conveyed to the unloading section together with the transfer of the conveyer belt 10, is smoothly discharged by the transport belt 10 being opened in a flat belt shape at the unloading section. The transport belt 10 that has carried out the transported object 1 returns to the loading section along the return transport path.
In the present embodiment, the transport belt 10 has been described as being integral with the overhang portion 12, but the present invention is not limited to this. As shown in FIG. May be connected to the belt main body 17 that houses the belt. In this embodiment, the case where the sediment deposited in the dam is carried out has been described. However, the present invention is not limited to this, and the so-called unloading coal system or a steel mill that transports coal discharged from a port to a thermal power plant is used as a raw material. Can be widely applied when transporting.

[0013]

According to the first aspect of the present invention, the center line of the bent portion of the conveyor belt is inclined with respect to the vertical direction, so that the side edge of the conveyor belt is bent at the bent portion of the conveyor belt. Between the roller supporting the roller and the transport belt, the rotational force of the roller can be efficiently transmitted to the transport belt, and the transport belt can be driven smoothly. . Therefore, the conveyor can be bent in any direction according to the conditions of the installation location, and can flexibly cope with the curved conveying path of the conveyed material. As a result, the transported object can be reliably transported over a long distance.

[Brief description of the drawings]

FIG. 1 is an image diagram of a catenary conveyor showing one embodiment of the present invention.

FIG. 2 is a sectional view of a support portion of the catenary conveyor.

FIG. 3 is a perspective view of a bent portion of the catenary conveyor.

FIG. 4 is a plan view of a bent portion of the catenary conveyor.

FIG. 5 is a perspective view of a support portion of the catenary conveyor.

FIG. 6 is a perspective view showing another example of the support portion of the catenary conveyor.

FIG. 7 is a perspective view of a driving unit of the catenary conveyor.

FIG. 8 is a perspective view of a driving support roller.

FIG. 9 is a perspective view of a side roller.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveyed object 10 Conveyor belt 11 Side end part 25 Support roller L Center line

Claims (1)

[Claims] 1. A conveyor that wraps and conveys a conveyed object by joining both end portions of an endless conveyance belt to form a water droplet, and supports the side end portion of the conveyance belt using a catenary, The transport belt is bent, and a side end of the transport belt is supported by a roller at a bent portion of the transport belt, and the transport belt is driven by rotating the roller. A catenary conveyor wherein a center line of a bent portion of the belt is inclined with respect to a vertical direction.