JPH0225774Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a draining device configured to forcibly drain water accumulated on the top surface of a belt conveyor that transports powdery materials such as coal and earth. It is related to.

[Prior Art] An example of a conventional draining device for a belt conveyor of this type is shown in FIGS. 5 to 8.

In FIGS. 5 to 8, the reference numeral 1 indicates a belt conveyor line, and a draining device 2 is provided in the middle of the line 1.

A line 1 of the belt conveyor is provided with a horizontally disposed roller 3 at the center in the width direction, and rollers 4, 4 are rotatably supported on the left and right sides of the roller 3, and the rollers 4 are disposed with their outer ends tilted upward. ing.

Each set of rollers 3 and 4 is arranged along the longitudinal direction of the line 1 at predetermined intervals.

Therefore, the belt 5 disposed above these rollers 3 and 4 is bent with both left and right ends facing upward, and runs in a trough shape with both ends of the belt in the width direction raised, and coal This prevents materials such as the like from spilling out from both sides of the belt 5.

However, since the upper side of the endless belt conveyor has a trough shape, rainwater accumulates on the upper surface of the belt conveyor, especially when the belt conveyor is not in operation, when the belt conveyor device is installed outdoors.

A draining device 2 is a device provided to remove this rainwater.

This draining device 2 is installed as an independent device in the middle of the line 1.

That is, the draining device 2 has a frame 6 arranged so as to constitute a part of the line, and on this frame 6, a plurality of shafts 7 are mounted at predetermined intervals along the longitudinal direction by bearings 7a. Each is rotatably supported on a shaft.

Each of the shafts 7 is provided with, on its upper side, a roller 8 which is horizontally disposed at the center in the width direction of the belt, and rollers 9, which become higher toward the outside.

These rollers 9, 8, 9 are rotatably supported, respectively, and these rollers 9, 8, 9 as a whole are arranged so as to be rotatable.

That is, the inner ends of the rollers 9, 9 are rotatably supported by bearings 8a attached to the shaft 7, and the outer ends thereof are supported by the ends of the arms 10 extending from both ends of the shaft 7, or by the lever 14. Bearing 9a provided in the middle of
It is rotatably supported on the shaft.

Therefore, the arm 10 rotates around the axis 7, or
When the lever 14 is rotated, the rollers 9, 8, and 9 can be rotated from the inclined state to be included in the same plane as the plane containing the shaft 7.

On the other hand, one end of a lever 11 that extends obliquely downward is fixed to one shaft 7 located approximately midway in the longitudinal direction of the frame 6 of the drainer 2, and the other end of this lever 11 is fixed to the shaft 7, which extends diagonally downward. Piston rod 12a of cylinder 12 located below 6
It is rotatably connected to the tip of the.

The other end of the cylinder 12 is rotatably supported on the upper end of a support frame 13 fixed on a base.

On the other hand, a pair of links 14 are fixed to the shaft 7 to which the lever 11 is attached, extending upward from both ends of the shaft 7 in parallel to each other, and between the upper ends of these pairs of links 14, 14. Presser foot roller 15
is rotatably supported.

Further, on the shaft 7 on the downstream side in the running direction of the belt 5 adjacent to the shaft 7 to which the link 14 is attached, there is a
A pair of links 20 are attached parallel to each other and in parallel with the link 14 in an upwardly extending state, and the link 14 and the link 20 form a parallel link. And link 20 and link 1
The upper ends of 4 are rotatably connected via pins by links 19 extending parallel to the longitudinal direction of the belt 5, and the links 19 have a V-shape on the opposite side of the belt 5 in the traveling direction. Similar to the link 19, the draining frame 16 is horizontally connected to the belt 5 in parallel with the belt 5, with the apex of the V-shape pointed in the direction opposite to the traveling direction of the belt 5 ( (See Figures 5 and 6).

The belt 5 and a sliding piece 16a with good sliding properties are fixed to the lower surface of the draining frame 16.

The lower surface of this sliding piece 16a is connected to the presser roller 15.
It is almost in the same plane as the bottom surface of.

By the way, the shaft 7 to which the lever 11 is attached
A lever 17 is provided on one end of the shaft 7 other than the shaft 7 in parallel with the lever 11 and protrudes downward, and is integrated with the shaft 7.
1 are each rotatably supported on a connecting rod 18.

Note that arms 10 supporting rollers 8 and 9 are provided at both ends of the shaft 7 to which the links 20 and 14 are connected.
is not fixed, and the links 20 and 14 also serve this role. Note that the lever 17 of the shaft 7 to which the link 20 is attached may not be provided.

Next, to explain the operation of the above-mentioned draining device, during the transportation work of coal etc., the cylinder 1
The piston rod 12a of No. 2 is moved backward, the levers 11 and 17 are rotated clockwise, and the links 14 and 20 forming the parallelogram link are almost vertical as shown by the solid or broken lines in FIG. is in a state of Further, the connecting rod 18 is being pushed in the direction in which the belt travels, and the shaft 7 is being rotated clockwise in FIG. 6 via the lever 17, and the arm 10 is also being rotated in the same direction. 6th, 7th, 8th
As shown in the figure, the rollers 8 and 9 are tilted outward so as to become higher and are in a normal state.

Therefore, the belt 5 has a trough shape, and coal and the like are conveyed without spilling.

If rainwater or the like accumulates on the belt 5 and you wish to drain it, proceed as follows.

That is, the belt conveyor is operated under no load,
The cylinder 12 is operated to extend the piston rod 12a. Then, the levers 11 and 17 are simultaneously rotated counterclockwise via the connecting rod 18 as shown by the two-dot chain line in FIG. At the same time, link 1
4 and 20 are rotated in the traveling direction of the belt 5, that is, in the counterclockwise direction.

As a result, the rollers 9, 8, 9 are rotated through the arm 10 so as to be flush with the plane including the shaft 7, and the presser roller 15 is
Press the belt 5 so that it is flat,
At the same time, the draining frame 16 comes into contact with the belt 5.

Therefore, the water that had accumulated on the belt 5 was distributed to the left and right along the V-shaped draining frame 16 as shown by the arrow in FIG. 5, and became horizontal in the width direction, making the entire surface flat. It is discharged to the outside from both left and right sides of the belt 5.

This draining operation is continued until there is no water on the upper surface of the belt 5.

In addition, the belt 5 is installed before and after the draining device 2.
has a trough shape, and after the belt 5 is forcibly made horizontal at the draining device 2, when it exits the draining device 2 it runs in a trough shape again.

[Problems to be solved by the invention] However, in the draining device having the above-described structure, during normal material conveyance, the links 14 and 20, the presser roller 15, and the draining frame 1
6 etc. are arranged in a gate shape above the belt conveyor with the belt 5 in between.
When a loading device such as an unloader that transfers materials onto the top moves in parallel with the belt 5 in the longitudinal direction of the belt 5, its chute etc. may hit or come into contact with the presser roller 15, draining frame 16, etc. It becomes a nuisance and makes it impossible for chute etc. to pass through, making it impossible to load cargo.

[Means for Solving the Problems] In order to solve the above-mentioned problems, in the present invention, the belt is provided in the middle of the line of the belt conveyor that runs the belt in a trough shape, and the entire belt support roller is rotated. The belt is equipped with a belt supporting roller tilting mechanism that supports and changes the belt from a trough shape to a flat state or vice versa. In a draining device for a belt conveyor in which a frame is brought into contact with the upper surface of the belt to discharge water accumulated on the belt to the outside of the belt, the presser roller and the draining frame are placed between the side of the belt conveyor and the upper surface of the belt. It is installed so that it can rotate freely in a plane orthogonal to the longitudinal direction of the belt, and is positioned to the side of the belt conveyor so that it is completely retracted from above the belt during non-draining operations, creating a space above the belt. Sometimes it is configured to be positioned on the top of the belt.

[Function] When the above-described structure is adopted, when the draining device is not used, the presser roller and the draining frame separate from the upper side of the belt conveyor and are completely retracted from above the belt, creating a space above the belt. The holding rollers and draining frame of the draining device have been moved to a position where they do not obstruct the passage of the chute of the unloader or other loading device, so they do not get in the way of the load and the material can be loaded smoothly onto the belt conveyor. Ru.

[Example] Hereinafter, the present invention will be described in detail based on an example shown in the drawings.

FIGS. 1 and 2 illustrate a first embodiment of the present invention, and the same parts in the figures as in FIGS. 5 to 8 are designated by the same reference numerals, and the explanation thereof will be omitted. Note that FIG. 2 shows the state shown by the two-dot chain line in FIG. 1 with the rotating frame 23 rotated, and the state of draining with the conveyor belt supporting rollers 8 and 9 rotated. FIG.

In this embodiment, a frame 6 is provided with a tilting mechanism for the rollers 8 and 9 similar to that described above.
A column 21 is fixed in a vertical position outside the conveyor belt at a position away from the line of the belt conveyor.

A rotating frame 23 is rotatably attached to the upper end of this support 21 via a shaft 22.

Further, on the outside of the support column 21, the lower end of the cylinder 24 is rotatably attached to the support frame 25 via a shaft 26, and its piston rod 24a
The distal end thereof is rotatably connected via a pin 28 to a lever 27 which is fixed to the shaft 27 at the base of the rotation frame 23 and protrudes.

In addition, a stopper 29 is provided protruding near the upper end of the support column 21 and on the conveyor side.
3, and supports the rotating frame 23 so that it is in a horizontal state.

As shown in FIG. 1, a pair of bearings 30 and 31 are attached to the side surface of the rotating frame 23 on the conveyor side, and a presser roller 32 is rotatably supported between these bearings 30 and 31. has been done.

Further, the rotating frame 23 has a V-shaped draining frame 3 whose apex is pointed in the direction opposite to the traveling direction of the belt 5.
3 is installed. The lower end surface of this draining frame 33 and the lower end surface of the presser roller 32 are located in the same plane.

Next, the operation of this embodiment configured as above will be explained.

When the water is not drained, the cylinder 24 is operated to retract the piston rod 24a, and the rotating frame 23 is rotated counterclockwise in FIG.
The rotating frame 23 is kept in a vertical state as shown by the solid line in the figure.

In this state, the presser roller 32 and the draining frame 33 are completely separated from the line of the belt conveyor, and the chute of the unloader and the like do not obstruct the passage of the belt 5 along the belt 5.

Incidentally, at this time, the belt 5 is in a trough shape, and the coal etc. are conveyed without spilling.

On the other hand, if you want to drain water,
Conveyor belt supporting rollers 9, 8, shown in the figure
9 actuates the cylinder 12 for the tilting mechanism to rotate the entire rollers 9, 8, and 9 around the axis 7 so that they are included in the same horizontal plane as the axis 7,
Keep the belt 5 in a horizontal state.

In this state, the cylinder 24 shown in FIG. 1 is operated, and its piston rod 24a is extended to extend the rotating frame
3 toward the conveyor side as shown in the two-dot chain line in FIG. 1 or as shown in FIG.
At the same time, the draining frame 33 is pressed onto the belt 5. The state at the time of draining is as shown in FIG.

In this way, the water on the belt can be removed from the draining frame 3.
3 to the left and right, and is discharged from both sides of the belt 5 for draining.

After draining is completed, the cylinder 24 may be operated to restore the original state. Note that it is also possible to use another drive source such as an electric motor in place of the cylinder 24 in this embodiment.

Next, a second embodiment will be described based on FIGS. 3 and 4. 3 is a side view corresponding to the above-mentioned FIG. 1, and FIG. 4 is a plan view corresponding to the above-mentioned FIG. , 9 shows the state when draining work is performed by folding down.

The rotating frame 23 and draining frame 33 of this embodiment have the same structure as the first embodiment described above, and the rotation drive source of the rotating frame 23 and draining frame 33 is the cylinder 24 as in the first embodiment. Instead, it is constructed so that it can be performed only by the tilting cylinders 12 of the conveyor belt supporting rollers 8, 9.

That is, as shown in FIGS. 3 and 4, the shaft end of the shaft 7 which rotatably supports the rollers 8 and 9 for supporting the conveyor belt is connected via a shaft coupling 7b to the shaft end on the support 21 side of the conveyor. A worm 33 is rotatably supported on a shaft, and a worm wheel 34 is rotatably attached to the shaft 22 supporting the rotating frame 23 on the upper part of the worm wheel 34, which meshes with the worm 33.

With this configuration, when performing draining work, when the cylinder 12 shown in FIG. 6 is operated, the shaft 7 rotates and the rollers 8 and 9 for supporting the conveyor belt fall down, causing the rollers 8 and 9 for supporting the conveyor belt to fall down, as shown in FIG. At the same time that the state shown in FIG. When rotated clockwise, the presser roller 32 and draining frame 33 are brought into contact with the belt 5, as indicated by the two-dot chain line in the figure, or as shown in FIG. 4, and the belt 5 becomes flat. Then, draining work is carried out.

Note that, instead of the worm gear consisting of the worm 33 and the worm wheel 34, a gear mechanism constituted by a combination of bevel gears or the like may be used as the gear mechanism.

In this way, if the configuration is as in the second embodiment,
Only one cylinder 12 is required as a driving source for the draining device, and the operation is reliable and the structure is simple.

[Effects of the invention] As is clear from the above explanation, the present invention has the structure described in the claims for utility model registration, so during draining work, the presser roller and draining frame are pressed against the conveyor belt. The water accumulated on the conveyor can be smoothly discharged, and when the water is not being drained, the pressure roller and draining frame of the drainer can be removed from the conveyor to completely free up space above the belt. Therefore, the operation of a part of the loading device such as the unloader is not obstructed, and the loading can be carried out smoothly on the belt conveyor.

[Brief explanation of drawings]

1 and 2 illustrate the first embodiment of the present invention, in which FIG. 1 is a side view, FIG. 2 is a plan view showing the state when the rotating frame is folded down, and FIGS. FIG. 4 illustrates a second embodiment of the present invention, FIG. 3 is a side view corresponding to FIG. 1, FIG. 4 is a plan view corresponding to FIG. 2, and FIGS. 5 to 8. explain the conventional structure, Fig. 5 is a plan view, Fig. 6 is a front view,
7 is a sectional view taken along the line A--A in FIG. 6, and FIG. 8 is a sectional view taken along the line B--B in FIG. 6. 1... Belt conveyor line, 5... Belt, 6... Frame, 8, 9... Conveyor belt roller, 10... Arm, 11, 17... Lever,
14, 19, 20... Link, 12, 24... Cylinder, 15, 32... Presser roller, 16, 33
... Draining frame, 23 ... Rotating frame, 33 ... Worm, 34 ... Worm wheel.

Claims (1)

[Claims for Utility Model Registration] (1) A belt conveyor installed in the middle of a belt conveyor line that runs a belt in a trough shape and rotates the entire belt support roller to change the belt from a trough shape to a flat state or vice versa. A belt support roller tilting mechanism is provided, and this tilting mechanism presses the top surface of the belt, which has been made into a flat state, with a presser roller, and at the same time brings the draining frame into contact with the top surface of the belt, so that the draining frame can be brought into contact with the top surface of the belt, thereby removing water that accumulates on the top surface of the belt. In a draining device for a belt conveyor that discharges water to the outside of the belt, the presser roller and the draining frame are freely rotatable in a plane perpendicular to the longitudinal direction of the belt between the side of the belt conveyor and the top surface of the belt. The belt conveyor is located on the side of the belt conveyor so that it is completely retracted from above the belt to form a space above the belt during non-draining operations, and is positioned on the top surface of the belt during draining operations. Drainage device for belt conveyor. (2) A draining device for a belt conveyor, characterized in that the presser roller and the draining frame are rotatably provided by a drive source provided separately from a drive source for the belt supporting roller tilting mechanism. (3) A draining device for a belt conveyor, characterized in that the presser roller and draining frame are rotatably provided by a drive source of the belt supporting roller tilting mechanism.