JPS594971Y2 - conveyor shuttle equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a conveyor shuttling device used in in-machine shuttling conveyors of various unloaders and other general shuttling conveyors.

More specifically, when the leading end of the belt conveyor, which is the loading/unloading end, is extended and moved along its longitudinal direction, the conveyor that is extended is supported so that it can run and move freely at predetermined intervals along the belt conveyor, and the above-mentioned The present invention relates to a conveyor ring device that prevents meandering of the extended conveyor by buffering the reciprocating movement of the tip in the extending direction and keeping the tension of the conveyor constant.

BACKGROUND ART Recently, as an in-machine conveyor in an unloader or the like, a shuttling conveyor whose tip portion is movable can be used.

Conventionally, pantographs consisting of links have been widely used as shuttling mechanisms, but conventional link-type shuttling mechanisms support wheels and conveyor belts that move the tip of the conveyor in the extending direction. There is a problem that lateral shaking occurs when moving in the extending direction simply because the carrier roller is connected to the carrier roller by a link.

Moreover, in the conventional type, the carrier roller for the belt conveyor is supported at the upper end of the link, which has low rigidity.
The upper end tends to wobble, causing the conveyor belt to meander.

When the conveyor belt meanderes, wear and tear on the conveyor belt increases, and wear and tear on the main body due to wobbling also spreads.

In addition, the shaking makes it difficult to determine the discharge position of the load and makes it difficult for the load to be placed on the center of the conveyor, which further causes meandering of the conveyor belt, which significantly impairs safety.

The present invention has been devised in view of the above-mentioned problems and to effectively solve them.

The object of the present invention is to allow the conveyor to be freely moved along the length of the belt conveyor at predetermined intervals when extending and moving the leading end of the belt conveyor, which serves as the loading/unloading end. It is possible to maintain the tension of the conveyor at a constant level by supporting the conveyor along the direction and damping the reciprocating movement of the tip end in the extending direction, thereby preventing the conveyor from meandering as it is being extended.

To provide a conveyor shaft I-ring device.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, 1 is a girder such as an unloader,
An in-flight conveyor 2 is mounted on this girder 1.

This in-machine conveyor 2 is composed of an endless belt conveyor, and a conveyor shuttling device for expanding and contracting its tip is attached to this. The tip can be moved from the position shown in solid lines to the position shown in phantom lines in FIG.

Note that 3 is the chute and 4 is the conveyor take-up weight.

A ground conveyor 7 is installed below the tip of the in-flight conveyor 2 via hoppers 5 and 6, and loads supplied from an unloader or the like onto the in-flight conveyor 2 via the hopper 8 are transferred from the in-flight conveyor 2 to the ground conveyor. Article 7, Article 2 allows for each to be transferred.

In the expanded and contracted state of the in-flight conveyor 2 during this transfer,
The conveyor shuttling device according to the present invention, which will be described below, was devised for the purpose of minimizing the meandering that occurs in the in-machine conveyor 2 and eliminating various defects caused by the meandering.

As shown in FIGS. 2 to 4, the conveyor shuttling device according to the present invention mainly includes a guide rail 9 provided along the direction in which the leading end, which is the carry-in or carry-out end of the belt conveyor, extends. A stopper 33 provided at the starting end of the guide rail 9, a cart 10 that is movably supported on the guide rail 9 and for reciprocating the tip end of the conveyor in the extending direction, and the stopper 33 and the cart 10. a pedestal 11 having a carrier roller interposed between the guide rail 9 and movably supporting the conveyor belt of the conveyor, the stopper 33, the pedestal 11, and the cart 10; are connected along the rails 9, respectively, and are arranged at a predetermined interval between the stopper 33 and the trolley 10 by pulling the pedestal 11 to follow the movement of the trolley 10 in the extending direction. and a resilient means 31 provided between the connecting means 10 and the pedestal 11 adjacent to the carriage 10 to buffer the movement of the carriage 10 in the extending direction and maintain the tension of the conveyor; and the stopper 3.
3 and an adjacent pedestal 11 for buffering the movement of the pedestal 11 including the cart 10 toward the stopper side and maintaining the tension of the conveyor. has been done.

As shown in FIGS. 2 to 4, a pair of guide rails 9 are installed along the longitudinal direction of the girder 1, and a cart 10 and a plurality of pedestals 11 are mounted on the guide rails 9, respectively. Supported for free movement.

This trolley 10 is installed on a guide rail 9 via wheels 12, and has a driving pulley 14 that drives the conveyor bell I.
A rotary drive device 16 and a chute 3 are provided on the carriage 10.

One end of this truck 10 is connected to a drive drum 17 mounted on the girder 1 via a wire rope 18, and by winding the wire rope 1B around the drive drum 17, the truck 10 is moved forward, and a wire is connected to the drive drum 17 from the drum 17. rope 1
By unwinding the conveyor take-up weight 8, the carriage 10 can be moved rearward by the weight of the conveyor take-up weight 4 as shown in FIG.

A plurality of pedestals 11 are provided on the guide rail 9 via rotatable wheels 19 between the stoppers 33 and the cart 10, and rotatable carrier rollers 21 are mounted on the pedestals 11 via brackets 20. It is attached to the conveyor belt 13 and supports the conveyor belt 13 so that it can run freely.

Each pedestal 11 is connected by the above-mentioned connecting means which can be expanded and contracted.

That is, the connecting means passes a connecting bolt 22 through one mating pedestal 11 and fixes its head by welding, passes the end of the bolt 22 through the other pedestal 11, tightens a nut 23, and guides the outer surface of this nut 23. A pipe 24 is welded to the other pedestal 11 so that each pedestal 11 can smoothly expand and contract so that it is disposed along the guide rail 9 at a predetermined interval.

In addition, in order to prevent the end of the pipe 24 from colliding with the cradle 11 when the interval between the pedestals 11 narrows, the pipe 24 can be inserted into the part of each pedestal 11 that faces the end surface of the pipe 24. A hole 11a of such size is formed.

In addition, buffers 25 are provided at both ends of the opposing surfaces of each pedestal 11.
is attached to prevent shock when the pedestals 11 come into contact with each other.

Further, a return roller 26 is rotatably attached to the pedestal 11 as appropriate to support the conveyor belt 13.

A carrier roller 21 for supporting the conveyor belt 13 is attached to the other end of the truck 10 via a bracket 27, and is connected to an adjacent pedestal 11 so as to follow the movement of the truck 10 and move the pedestal in the extending direction. Connecting means are provided for towing the parts 11 at predetermined intervals.

This connecting means slides between a sprocket rod receiver 28 provided on the truck 10, a sprocket rod receiver 29 provided on the pedestal 11 at the tip opposite to the truck 10, and these sprocket rod receivers 28, 29. and a sprocket rod 30 that can be connected to each other.

This sprocket rod 30 is provided with a spring 31 as a springing means to be interposed between the cart 10 and the pedestal 11.
is attached, and when the trolley 10 moves in the extending direction, a spring force acts to buffer the movement of each cradle 1.
1 is held firmly to prevent each carrier roller 21 from wobbling in the longitudinal direction, thereby maintaining the tension of the conveyor belt 13 at a constant level.

Note that 32 is a nut that adjusts the spring force as the biasing force of the resilient means.

Further, a stop guide plate 33 as a stopper is provided on the girder 1 at the starting end of the rail 9, and this guide plate 33 and the pedestal 11 adjacent thereto are connected by a slide bolt 34 constituting a connecting means. has been done.

The head of this slide bolt 34 is fixed to the pedestal 11 by welding, and the other end is a stopper guide plate 3 as a stopper.
3, and a nut 35 is attached thereto.

By adjusting the position of this nut 35, the stop guide plate 3
3 and the pedestal 11 is determined, and when the pedestal 11 abuts against the stop guide plate 33, the nut 35 and slide bolt 34 protrude and are housed behind the stop guide plate 33.

A spring 36 as a springing means is provided between the stopper 33 and the pedestal 11 adjacent thereto.

As shown in FIG. 3, the spring 36 serving as the springing means is interposed on a rod 37 that is provided on the stopper guide plate 33 of the stopper 33 so as to be retractable along the traveling direction of the pedestal 11, and is received by the rod 37. When the platform 11 comes into contact with the platform 11 as it travels, it is biased to repel it, thereby damping the movement of the platform 11 including the platform 10 in the return direction.

Therefore, each pedestal 1 is cushioned by the spring force of the resilient means.
By supporting the conveyor belt 1, the carrier rollers 21 are completely prevented from wobbling in the longitudinal direction, and the tension of the conveyor belt 13 is maintained constant.

Next, the operation of the present invention will be described.

First, the drive drum 17 is rotated and the wire rope 18 is wound around the drum 17, thereby moving the cart 10 in the extending direction.

This movement of the trolley 10 is carried out by the driving pulley 14
The rotation is continued from the position shown by the imaginary line to the position shown by the solid line in the figure, and the rotation of the drive drum 17 is stopped in that state.

In this state, as shown by the imaginary line in Fig. 1, the in-machine conveyor 2
This is the so-called stretched state.

In this case, the distance between each pedestal 11 is the maximum length.

That is, as shown in FIGS. 3, 5, and 6, adjacent pedestals 11 are separated by the length of the connecting bolt 22, which determines the tightening position of the nut 23.

In addition, as shown in FIG.
It is separated from the stop guide plate 33 by the length of the slide bolt 34 determined by the position.

Furthermore, as shown in FIG. 2, the pedestal 11 at the tip rests in a state where the spring 31 serving as a resilient means is suitably compressed.

In this extended state, that is, in a state in which the tip of the conveyor outer rut 13 is extended, the rotational drive device 16 is operated, and the chain 1
5, the driving pulley 14 is rotated to drive the conveyor belt 13 in circulation.

At this time, as shown in FIG. 1, the load loaded onto the in-machine conveyor 2 from an unloader or the like via the hopper 8 is transported by the in-machine conveyor 2, and is supplied from the chute 3 to one hopper 6. Then, it is transferred onto one of the intermediate conveyors 7.

When the conveyor belt 13 is subjected to a lateral force in such a state, the carrier roller 21 is installed on the pedestal 11 via the bracket 20, and the pedestal 11 is mounted on the guide rail by the wheels 19, as shown in FIG. 9 and supported on the pedestal 1
Since the height of conveyor belt 1 is low, the supporting portion of conveyor belt 13 has a structure with high rigidity, so that the occurrence of sideways vibration of conveyor belt 13 is prevented.

Furthermore, when the conveyor belt 13 receives a force in the longitudinal direction, as shown in FIG. Since the table 11 and each carrier roller 21 are held by spring force, the tension of the conveyor belt 13 is kept constant, and the occurrence of fluctuation in the longitudinal direction of the conveyor belt 13 is prevented.

Next, the driving drum 17 is rotated in the opposite direction to that described above, and the wire rope 18 is unwound from the drum 17, so that the carriage 10 is returned to the rear by the weight of the conveyor take-up weight 4.

This movement of the trolley 10 is carried out by the driving pulley 14
The rotation is continued from the position shown by the solid line to the position shown by the imaginary line in the figure, and the rotation of the drive drum 17 is stopped in that state.

This state is the so-called shortened state of the in-machine conveyor 2, as shown by the solid line in FIG.

In this case, the pedestals 11 are adjacent to each other with the buffer 25 in between, as shown by the imaginary lines in FIG.

That is, as shown in FIGS. 7 and 8, each connecting bolt 22 constituting the connecting means is guided by a nut 23 and enters a pipe 24, and each pipe 24 is connected to each adjacent pedestal 11.
The space between each pedestal 11 is narrowed.

Further, as shown by the imaginary line in FIG. 2, the pedestal 11 on the stopper 33 side comes to rest in front of the stop guide plate 33, which is a stopper, with the spring 36 serving as a resilient means appropriately compressed.

When the conveyor belt 13 is driven to circulate in this shortened state, as shown in FIG. from the hopper 5 to the other ground conveyor 7.

Even if the conveyor belt 13 is subjected to a lateral force in this state, the tension is maintained constant as described above, and the occurrence of lateral wobbling is prevented.

Furthermore, when the conveyor belt 13 is subjected to a force in the longitudinal direction, the cradle 11 at the rear end is pressed against the stop guide plate 33 via the spring 36 as a resilient means.
Since each pedestal 11 and each carrier roller 21 are held by a spring force, the conveyor belt 13 is prevented from wobbling in the longitudinal direction.

Therefore, irrespective of the expansion and contraction of the in-machine conveyor 2, the conveyor belt 13 is prevented from swaying laterally and in its longitudinal direction, and meandering of the conveyor belt 13 can be prevented.

As is clear from the above description, the present invention provides the following effects.

(1) Meandering and sideways wobbling of the conveyor belt can be prevented, and a constant tension can be maintained.

(2) Compared to conventional link type shuttling mechanisms, the structure is simpler, requires fewer components, and is lighter and stronger.

(3) Disadvantages such as belt wear due to belt meandering and uncertainty in shipping and delivery are eliminated, and excellent effects such as improved safety are achieved.

[Brief explanation of the drawing]

Fig. 1 is a schematic explanatory diagram showing the overall arrangement and operating status of the conveyor shuttling device according to the present invention, Fig. 2 is a side view showing an embodiment of the conveyor shuttling device according to the present invention, and Fig. 3 2 is a partial plan view taken along the line A-A in FIG. 2, FIG. 4 is a sectional view taken along the line B-B in FIG. 2, and FIG. 6 is a sectional view taken along the line C-C in FIG. 5, and FIG. 7 is a partial sectional side view showing an embodiment of the conveyor shuttling device according to the present invention in a shortened state. FIG. 8 is a sectional view taken along the line DD in FIG. 7. In the figure, 2 is a belt conveyor, 9 is a guide rail, 10 is a cart, 11 is a pedestal, 13 is a conveyor, 21 is a carrier roller, 22, 23, 24, 30.34 is a connecting means, 31.
36 is an explosive means.

Claims (1)

[Scope of utility model registration request] In a conveyor shuttling device that extends and moves a tip end serving as an inlet/output end of a belt conveyor along its longitudinal direction, a guide rail provided along the extending direction of the tip end and having a stopper at a starting end; , a truck supported movably on the rail and for reciprocating the tip in the extending direction; a truck interposed between the stopper and the truck and supported movably along the rail; A plurality of pedestals each having a carrier roller that freely supports the conveyor belt of the conveyor, and the stopper, pedestal, and truck are connected along the rails, and follow the movement of the truck in the extending direction. connecting means for pulling the pedestal from the stopper to the carriages at a predetermined interval; an elastic means for buffering the movement of the conveyor to maintain the tension of the conveyor, and a resilient means provided between the stopper and a pedestal adjacent thereto to buffer the movement of the pedestal including the cart toward the stopper. and a resilient means for maintaining the tension of the conveyor.