JPH0464964B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a conveyor device for conveying objects generally called bulk materials such as lumps, powders, and granules. The present invention relates to a conveyor device that can transport bulk items to a desired position within the movement range of a traveling truck.

<Prior Art> When conveying bulk materials such as lumps of ore, coal, coal stone, etc., grains, salt, sugar, etc., a belt conveyor provided with a trough is generally used.

For example, in the case of steelworks or thermal power plants,
BACKGROUND OF THE INVENTION Ore, coal, etc. transported by bulk cargo ships are unloaded and stored in piles in storage yards. In order to carry out such cargo handling work, a conveyor device as shown in FIG. 5 is provided.

This conveyor device consists of 5 rails laid in parallel.
1, a trolley 52 running on this rail 51,
A conveyor belt 55 is provided along the rail 51 and over the entire running range of the truck 52, and is wound around a drive roller 53 and a tail roller 54 and transported in the direction of the arrow. An inclined conveying section 56 and a cart 52
It is constructed by a conveyor 57 which is provided above and conveys the loose items conveyed by a conveyor belt 55 in a direction different from the running direction of the trolley 52.

According to the conveyor device configured as described above,
Bulk materials supplied by an unloader or other conveyor on the upstream side in the direction of the arrow are stored in piles according to the height of a conveyor 57 provided on the cart 52 within the traveling range of the cart 52. It is possible to carry out bulk cargo handling in a rational manner.

Furthermore, conveyor devices capable of conveying the above-mentioned bulk materials or fluids such as muddy water along steep slopes including vertical ones are known (Japanese Patent Publication No. 56-3288, etc.).
This conveyor device overlaps two conveyor belts disposed opposite to each other, wraps the object between these belts, and conveys the object vertically or at a steep slope.

According to the above-mentioned conveyor device, it is possible to reduce the occupied floor space and transport objects from a low place to a high place or from a high place to a low place.

<Problems to be Solved by the Invention> In the conveyor device shown in FIG.
The angle of inclination is set by the coefficient of friction with 5.
That is, the inclination angle of the conveyor device is set depending on the material, shape, particle size, etc. of the bulk material.

Normally, the inclination angle of the above conveyor device is 15
Generally, it is set below 100 degrees.

In the above conveyor device, the length of the inclined conveyance section 56 is set according to the loading height of bulk materials.
2 becomes longer, and accordingly, it is necessary to increase the running range of the trolley 52.

However, it is not possible to convey bulk materials to a portion corresponding to the length of the inclined conveyance section 56 from the tail roller 54, and therefore, a dead space is inevitably created, and this dead space varies depending on the loading height of the bulk materials. The problem is that it gets bigger. Further, there is a problem in that the installation floor area of the conveyor device increases depending on the loading height of bulk materials, and the cost of the device increases.

When storing coal, etc., it is sometimes stored in piles in an indoor yard to prevent dust from scattering. Furthermore, when storing grains, etc., it is common to store them in piles in an indoor yard. In this way, when bulk materials are stored in piles in an indoor yard, it is preferable to effectively utilize the height, floor space, etc. of the building. Furthermore, when carrying out cargo handling operations such as grains, it is not preferable to expose the entire conveyor device to the open air. Therefore, when using the above conveyor device, it is necessary to increase the floor area of the building according to the length of the inclined conveyance section 55, and the floor area corresponding to the dead space cannot be used effectively as a storage yard. There's a problem.

An object of the present invention is to provide a conveyor device that can reduce the installation floor space and effectively utilize the floor space for storing bulk materials.

<Means for Solving the Problems> In order to solve the above problems, a conveyor device according to the present invention includes a traveling trolley configured to be able to reciprocate along a rail, and a conveyor device that is stretched according to the movement range of the traveling trolley. a conveyor belt for conveying the conveyed object, a driving means for driving the conveyor belt, a curved conveyor section and an inclined conveyor section configured on the traveling carriage and for guiding the conveyor belt. a conveyance guide section, a subordinate belt for contacting the conveyance belt in the conveyance guide section and wrapping the conveyed object, and the conveyance belt and the subordinate belt provided above the conveyance guide section. and a conveyor for conveying the objects conveyed by the carriage in a direction different from the moving direction of the traveling carriage.

<Operation> According to the above means, the floor space of the building can be effectively utilized when bulk materials are stored in piles in an indoor yard.

That is, a conveyor belt stretched across the range of movement of the traveling truck is curved and conveyed at an angle by a conveyance guide section provided on the traveling truck, and the conveyor belt and the subordinate belt are connected to each other in this conveyance guide section. By encasing and transporting an object such as a loose item, it is possible to transport the object substantially vertically. Therefore, the area corresponding to the inclined conveyance section in the conveyor device can be reduced, and the length of the entire conveyor device can therefore be shortened.
The floor space of the building can be used effectively.

<Example> An example of a conveyor apparatus to which the above means is applied will be described below with reference to the drawings.

Fig. 1 is a side view of the conveyor device, Fig. 2 is a plan view, Fig. 3 is an explanatory view of the support roller, and Fig. 4 is an illustration of the support roller.
The figure is an explanatory view of a state in which an object to be conveyed is wrapped with two belts.

The conveyor device shown in the figure consists of the laid rail 1
This is for storing objects transported by a transport belt 2 in piles at a predetermined position on the side of a traveling trolley A that can be moved in the directions of arrows a and b above. Therefore, it is configured as a conveyor device suitable for storing bulk materials such as coal and grain in a covered indoor yard.

However, this conveyor device is not only used for storing bulk materials in piles in an indoor yard as described above, but also for storing bulk materials such as ore and limestone unloaded from a bulk materials ship moored at a dedicated berth. It can also be used for cargo handling operations such as storing cargo in piles in an outdoor yard located near the berth.

The rails 1 define the movement range of the traveling trolley A, and are laid in parallel in a range corresponding to a preset storage yard.

The conveyor belt 2 is provided between the rails 1 laid in parallel, and is stretched according to the movement range of the traveling carriage A. That is, the conveyor belt 2 includes a drive roller 2a provided at the downstream end of the belt 2, a tail roller 2b provided at the upstream end, and a top roller 2c and a return roller 2d that constitute the conveyance guide section 10 provided on the traveling truck A. is wrapped around.

The conveyor belt 2 is provided with a tension applying mechanism 1 which will be described later.
9 applies a constant tension. Therefore, the distance between the drive roller 2a and the tail roller 2b is regulated according to the strength of the conveyor belt 2 used. That is, the total length of the conveyor belt 2 is determined according to the travel distance of the traveling trolley A, the conveyance height, the method of supplying the conveyed object to the conveyor belt 2, etc., and the specifications such as the strength of the conveyor belt 2 are determined according to this length. It is necessary to set.

As shown in FIG. 3, a predetermined trough is provided on the conveying side (upper side in FIG. 1) of the conveying belt 2 between the drive roller 2a and the tail roller 2b to support the belt 2. A plurality of support rollers 3 are arranged at a constant pitch and at a constant height, and cylindrical rollers 4 are arranged at a constant pitch on the return side (lower side in Fig. 1). There are multiple locations.

The support roller 3 has a horizontal roller 3a in the center, and rollers 3b having a predetermined trough angle on both sides of the roller 3a, and these rollers 3a and 3b protrude from a base plate 3c. They are each rotatably attached to the bracket 3d.

By the plurality of support rollers 3 arranged as described above, the floor level FL or ground level GL is
A horizontal conveyance section C having a constant height is constructed from the above.

The traveling trolley A is configured to have a shape that straddles the horizontal conveyance section C configured as described above. That is, garters 5 are provided in the longitudinal direction of the rails 1, and the conveyance guide part 1 is provided on the upper part of the garters 5.
0, a frame 6 for arranging a conveyor D, etc. is provided. And garter 5 is frame 6
The connection is fixed by.

A plurality of wheels 7 are attached to the garter 5, and a motor,
A drive device 8 composed of a reduction gear, a transmission, etc. is attached. The drive device 8 and the wheels 7 are connected via a transmission means 8a such as a chain. Therefore, by driving the drive device 8, it is possible to make the traveling trolley A travel along the rail 1 in the directions of arrows a and b.

A frame 6 provided on the upper part of the garter 5 includes a conveyance guide section 10 for guiding the conveyance belt 2 and the subordinate belt 9. The conveyance guide section 10 is composed of a lower curved conveyor section 10a, an inclined conveyor section 10b including a vertical portion continuous with the lower curved conveyor section 10a, and an upper curved conveyor section 10c continuous with the inclined conveyor section 10b. There is. The lower curved conveyance section 10a is provided at a higher position than the support rollers 3 disposed in the horizontal conveyance section C, and the upper curved conveyance section 10c is provided at a position corresponding to the preset height of the building B. It is being

Lower curved conveyance section 10a and upper curved conveyance section 10
c, a curved support roller 11 configured with a predetermined trough similar to the support roller 3 shown in FIG.
are arranged at a predetermined pitch. That is, the curved portion support roller 11 is positioned radially on the radius of a circular arc having a preset radius of curvature, and
By arranging the roller tops of the support rollers 11 on an arc, a lower curved conveyance section 10a and an upper curved conveyance section 10c are constructed. The curved portion support rollers 11 are each attached to the frame 6.

In order to smoothly guide the conveyance belt 2 from the horizontal conveyance section C to the lower curved conveyance section 10a, a support roller 3 is provided between the lower curved conveyance section 10a and the horizontal conveyance section C. This support roller 3 is attached to the frame 6, and as the traveling carriage A travels, it smoothly guides the conveyor belt 2 from the horizontal conveyor section C to the lower curved conveyor section 10a.

In the conveyance guide section 10 configured as described above, the inclined conveyance section 10b can be configured with a steep inclination angle including a vertical angle. That is, the inclined conveyance section 1
It is possible to configure 0b with an inclination angle of 15 degrees or more. Therefore, when the inclined conveyance section 10b is configured perpendicularly to the FL, it is possible to configure the length of the traveling trolley A to be constant regardless of the loading height of the objects to be loaded in the storage yard. It is. Therefore, by appropriately setting the length and turning angle of the conveyor D, which will be described later, it becomes possible to pile up and store objects to be transported, such as loose objects, over substantially the entire lateral range of the traveling trolley A.

Furthermore, if the length of the building is determined in advance, it is possible to shorten the length of the rail 1, and if the length of the rail 1 is determined in advance, the length of the building can be shortened. By increasing the length, it becomes possible to effectively utilize the floor space of this building.

In this embodiment, the inclined conveyance section 10b is configured perpendicularly to the FL.

The follower belt 9 is disposed facing the conveyor belt 2, and includes a head roller 9a provided at the top of the frame 6, a tail roller 9b provided near the lower curved conveyor section 10, and a return roller 9c. It is wrapped. The subordinate belt 9 is overlapped with the conveyor belt 2 between the lower curved conveyor section 10a, the inclined conveyor section 10b, and the upper curved conveyor section 10c, and as the conveyor belt 2 moves, contact friction with the belt 2 causes It is constructed so that it can be driven.

As shown in FIG. 4, the inclined conveying section 10b is provided with a mechanism that contacts the widthwise ends of the overlapping conveyor belt 2 and subordinate belt 9 to seal the overlapping ends of these belts 2 and 9. Edge rollers 12 are arranged in a staggered manner at a predetermined pitch.

The top roller 2c of the conveyor belt 2 is provided at a position that is continuous with the upper curved conveyor section 10c and projects horizontally from the rear end of the conveyor section 10c. Further, the return roller 2d of the conveyor belt 2 disposed at the upper part is provided near the upper curved conveyor section 10c. Therefore, the upper curved conveyance section 10c
An eave-shaped upper horizontal conveyance section 10d from which the conveyance belt 2 is projected by a top roller 2c is constructed at the rear end.

Below the upper horizontal conveyance section 10d, a traveling trolley A carries objects conveyed by the conveyor belt 2.
A conveyor D is provided for conveying in a direction different from the running direction of the rails 1, that is, to the side of the rail 1.

The conveyor D includes a conveyor body 14 supported by a conveyor frame 13, and a lift device 15 for changing the inclination angle of the conveyor body 14.
and a turning device 1 for turning the conveyor body.
6.

The conveyor D has a length and a turning angle according to the width and length dimensions of the traveling trolley A so as to eliminate a dead space that may occur on the side of the traveling trolley A and on the upstream side of the transport direction of the conveyor belt 2. It is composed of

The conveyor body 14 includes drive rollers 14a and tail rollers 1 provided at both ends of the conveyor frame 13.
4b and a belt 14c wound around them. Further, a drive device 14d consisting of a motor, a reduction gear, a transmission, etc. is attached to the conveyor frame 13, and the drive device 14d and the drive roller 14a are connected via a transmission means 14e such as a chain. Therefore, by driving the drive device 14d, it is possible to transport the belt 14c in the direction of the arrow d.

The end of the conveyor frame 13 on the tail roller 14b side is rotatably supported by a pin 17a provided on the support 17, and a bracket 13a fixed at a predetermined distance from the end has a lift device 15. For example, a rod such as a hydraulic cylinder is connected. Therefore, by operating the lift device 15, it is possible to rotate the conveyor body 14 about the pin 17a in the direction of the arrow e.

However, the lift device 15 is not limited to the above configuration; for example, the lift device 15 is
The end portion of the drive roller 3 on the tail roller 14b side may be rotatably supported by the pin 17a, and the end portion on the drive roller 14a side may be suspended by a wire or the like.

The swing device 16 includes a swing motor (not shown) and a swing frame 16 driven by the motor.
It is composed of a and the support 17 above.
is fixed to the rotating frame 16a. Then, by rotating the rotating frame 16a by the rotating motor, the conveyor main body 14 is moved to the conveyor belt 2.
It is constructed so that it can be rotated in the direction of arrow f in FIG. 2 about the center directly below the top roller 2c. In this embodiment, the rotating angle of the rotating frame 16a is approximately 270 degrees.

As described above, the conveyor belt 2 includes drive rollers 2a,
It is wound around the tail roller 2b, the top roller 2c disposed on the traveling carriage A, the return roller 2d, the curved part support roller 11 disposed on the conveyance guide section 10, and the like. Then, it is transported in the direction of arrow c by a drive device 18, which includes a motor, a reduction gear, a transmission, etc., connected to the drive roller 2a. Therefore, the conveying direction of the conveyed portion is the direction of arrow c, which is the conveying direction of the conveyor belt 2.

A constant tension is always applied to the conveyor belt 2 by a tension applying mechanism 19. This tension applying mechanism 19 is a part for conveying an object, that is,
It is also possible to provide it at any position other than the horizontal conveyance section C and the conveyance guide section 10.

In this embodiment, the tension applying mechanism 19 is provided near the drive roller 2a and on the return side of the conveyor belt 2.

The tension applying mechanism 19 includes a tension roller 19a that is wound around the conveyor belt 2 to apply tension to the belt 2, and a biasing device 19b that biases the tension roller 19a in the direction of arrow g. It is structured accordingly. The biasing device 19b applies a constant load to the tension roller 19, which is preset according to the material of the conveyor belt 2, the properties of the conveyed object, etc.
This is to energize a. Therefore, the biasing device 19
As b, it is possible to provide a weight having a certain weight, a ram mechanism configured to supply a certain pressure fluid, a motor equipped with a torque limiter, etc.

In addition, 20 in the figure is a balance weight fixed to the frame 6. Further, it is preferable to provide the garter 5 of the traveling trolley A with a clamp device capable of clamping the rail 1. In this way, by providing the balance weight 20, clamp device, etc. on the traveling trolley A,
It is possible to reduce the vibration of the traveling trolley A during cargo handling work and to stably maintain the stopped position.

In the above-mentioned conveyor device, the feeding position of the conveyed object is provided near the tail roller 2b on the upstream side of the conveyor belt 2 in the transport direction. This supply position is not particularly limited, and is set depending on the supply method for supplying the conveyed object to the conveyor device. However, it is preferable to provide the hopper 21 at a predetermined position on the upstream side of the conveyor belt 2.

Next, an explanation will be given of the operation when the conveyor apparatus configured as described above is used to pile up and store the objects to be transported in a storage yard provided in building B.

First, the driving device 8 provided on the garter 5 is driven to move the traveling cart A to a storage yard set according to the type of the object to be transported. When the traveling truck A reaches a predetermined storage position, the clamping device is operated to fix the traveling truck A to the rail 1. Then, the rotation device 16 is driven to rotate the conveyor body 14 in the direction of arrow f to set the position where the conveyed object is dropped, and the lift device 15 is further driven to set the elevation angle of the conveyor body 14.

By the above operation, the transport position of the object to be transported with respect to the storage yard by the traveling trolley A is set.

Next, the drive device 18 is driven to transfer the conveyor belt 2 in the direction of arrow c, and the objects to be conveyed, such as coal, grain, ore, are supplied to the hopper 21 by a bucket crane, a belt conveyor, an unloader, etc. , these objects to be conveyed are fed in fixed quantities from the hopper 21 to the conveyor belt 2 and conveyed in the direction of arrow c.

The transported object transported in the direction of arrow c is transported by traveling trolley A.
It is introduced into the lower curved conveyance section 10a, and is covered by the conveyance belt 2 and the subordinate belt 9 that is conveyed in contact with the belt 2, and is transferred to the inclined conveyance section 10.
b. In the inclined conveyance section 10b,
As shown in FIG.
It is wrapped in a sheath-like shape by the conveyor belt 2 whose ends are pressed together by the conveyor belt 2 and the subordinate belt 9, and is conveyed from the bottom to the top. The objects to be conveyed are then discharged from the top roller 2c through the upper curved conveyance section 10c to the conveyor body 14 provided directly below the roller 2c, and onto the storage yard set on the side of the rail 1 by the conveyor body 14. is discharged.

The conveyor belt 2 is transferred from the top roller 2c to the drive roller 2a side via the return roller 2d,
Furthermore, it is transferred from the roller 2a to the tail roller 2b side via the tension applying mechanism 19.

As described above, it is possible to pile up and store the objects to be transported in a predetermined storage yard.

In the above embodiment, the case where the angle of the inclined conveyance section 10b is perpendicular to the FL has been described, but the angle is not limited to this. It is also possible to configure it so that it is inclined toward the upstream side.
In this way, when the inclined conveyance section 10b is inclined upstream in the conveyance direction of the conveyor belt 2, it is possible to completely eliminate the dead space that may occur on the side of the traveling trolley A, and the storage yard can be saved. It becomes possible to utilize almost the entire floor area or the floor area and height of building B as a storage yard.

<Effects of the Invention> As explained in detail above, according to the conveyor device according to the present invention, the conveyor belt and the subordinate belt are superposed on each other in the conveyance guide section provided on the traveling carriage to carry the conveyed object. By encasing and transporting the object, it is possible to transport the object vertically or at a steep slope. Therefore, the length of the traveling trolley can be configured to be substantially constant regardless of the height of loading bulk materials. Therefore, there is no need to increase the length of the cart depending on the loading height as in the prior art, and it is possible to reduce the installation area of the conveyor device and the cost of the device.

Furthermore, since the length of the traveling carriage can be made substantially constant, dead space will not be created on the sides of the carriage by appropriately setting the length and turning angle of the conveyor provided on the traveling carriage. Therefore, when bulk materials are stored in piles in an indoor yard, the floor space of the building can be used effectively. Furthermore, when bulk items are stored in piles in an outdoor yard, the area of the storage yard can be effectively utilized.

Furthermore, when the inclined conveyance section in the conveyance guide section is inclined toward the upstream side in the conveyance direction of the conveyor belt, it is possible to reliably eliminate dead spaces that may occur on the sides of the traveling carriage. Therefore, it has features such as being able to reduce wasted space and make effective use of land.

[Brief explanation of the drawing]

Fig. 1 is a side view of the conveyor device, Fig. 2 is a plan view, Fig. 3 is an explanatory view of the support roller, and Fig. 4 is an illustration of the support roller.
The figure is an explanatory diagram of a conveyed object wrapped by two belts, and FIG. 5 is an explanatory diagram of a conventional technique. A is the traveling trolley, B is the building, C is the horizontal transport section, D
is a conveyor, 1 is a rail, 2 is a conveyor belt, 2
a, 14a are drive rollers, 2b, 9b, 14b are tail rollers, 2c are top rollers, 2d, 9c
is a return roller, 3 is a support roller, 5 is a garter, 6 is a frame, 7 is a wheel, 8, 14d, 18
is a drive device, 9 is a follower belt, 9a is a head roller, 10 is a conveyance guide section, 10a is a lower curved conveyance section, 10b is an inclined conveyance section, 10c is an upper curved conveyance section, 10d is an upper horizontal conveyance section, 11 is a curved conveyance section 12 is an edge roller, 13 is a conveyor frame, 14 is a conveyor main body, 14c is a conveyor belt, 15 is a lift device, 16 is a turning device, 1
7 is a support, 17a is a pin, 19 is a tension applying mechanism, 19a is a tension roller, 19b is a biasing device, 20 is a balance weight, and 21 is a hopper.

Claims (1)

[Claims] 1. A traveling carriage configured to be able to reciprocate along a rail, a conveyance belt for conveying a conveyed object stretched according to the movement range of the traveling carriage, and a drive for driving the conveyance belt. a conveyance guide section configured on the traveling carriage and consisting of a curved conveyance section and an inclined conveyance section for guiding the conveyance belt; a subordinate belt for wrapping the conveyor belt, and a slave belt provided above the conveyance guide section for conveying the conveyed object conveyed by the conveyor belt and the slave belt in a direction different from the moving direction of the traveling carriage. A conveyor device comprising a conveyor.