JP2000168954A - Tripper device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tripper device of simple constitution capable of easily transferring a load from an on-ground conveyer belt to a tripper device without applying impact force to a roller in the rearmost end part. SOLUTION: A substantially triangular oscillation frame 11 of which two support rollers 5a, 5b in the rearmost end of a tripper device 3 are connected by an interconnecting arm 8, and in which the arm 8 is used as one side and other two sides are connected by support arms 9, 10 is mounted rotatably on a conveying table 7 by a rotary shaft 12 provided in a top of the support arms 9, 10 to be in parallel to shafts of the support rollers 5a, 5b, in the tripper device 3 arranged in a rear end position of an interconnecting conveyer 2 for conveying a load to a boom conveyer, and for lifting up an on-ground conveyer belt 4 by the plural support rollers 5 arranged inclinedly with equal intervals to supply the load to the rear end part of the conveyer 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tripper device provided in a boom conveyor system for loading a load such as ore, coal or earth and sand at a predetermined position.

[0002]

2. Description of the Related Art Conventionally, boom conveyor equipment has been used for stacking loads of ore, coal, earth and sand, etc. at predetermined positions such as on the ground.

FIG. 4 shows an example of a boom conveyor equipment, in which 1 is a boom conveyor, 2 is a communication conveyor,
Reference numeral 3 denotes a tripper device, and the boom conveyor 1, the communication conveyor 2, and the tripper device 3 integrally travel on a ground traveling path. Reference numeral 4 denotes a ground conveyor belt. The ground conveyor belt 4 is disposed endlessly so as to be able to circulate along the ground, and is provided with tension by a tension applying device (not shown).

The above-mentioned ground conveyor belt 4 supports the ground conveyor belt 4 so as to be lifted obliquely forward and then turned back, so that the load falls onto the communication conveyor 2 from the turning point.

[0005] The communication conveyor 2 receives the load from the tripper device 3 and conveys it obliquely upward, and drops the boom conveyor 1 from its upper end onto the base end of the boom conveyor 1.

[0006] The boom conveyor 1 is configured to be able to pivot around a base end, and to drop a load received from the communication conveyor 2 from the front end for stacking.

As shown in FIG. 5, the tripper device 3 includes a carrier 7 having a predetermined inclination angle with respect to the ground level and having a rear end approaching the ground roller 6. A plurality of support rollers 5 are arranged in series and inclined at predetermined intervals on a carrier table 7, and the ground conveyor belt 4 supported on the ground side by the ground rollers 6 is lifted up by the support rollers 5 for communication. The conveyor 2 is configured to be guided over the rear end.

Further, the position of the rearmost (lowermost) support roller 5a is arranged at a position lower than the straight line connecting the other support rollers 5 so that the load can be easily transferred from the ground conveyor belt 4 to the tripper device 3. The ground conveyor belt 4 is designed to be moved by the tripper device 3 while drawing a curve of a radius R (shown by a broken line).

[0009]

However, in the above-mentioned conventional tripper device 3, the ground conveyor belt 4
In order to install the support roller 5a so as to draw a curve of radius R, the mounting position and height of the rearmost support roller 5a must be adjustable, and the adjustment is not easy and it takes time. was there.

If the mounting position of the rearmost support roller 5a is improper, or if the tension of the ground conveyor belt 4 is insufficient, as shown in FIG. In a portion where the load M transfers from the ground conveyor belt 4 to the tripper device 3, the ground conveyor belt 4 bends immediately before the support roller 5a, so that a large impact force P in the direction of the arrow may act on the support roller 5a, For this reason, there has been a problem that the support roller 5a is damaged.

In view of such circumstances, the present invention has a simple configuration in which a load can be easily transferred from a ground conveyor belt to a tripper device without giving an impact force to a rearmost support roller. It is intended to provide a tripper device.

[0012]

According to the present invention, there is provided a communication conveyor for transferring a load to a boom conveyor at a rear end position thereof.
In a tripper device in which a ground conveyor belt is lifted by a plurality of support rollers arranged at equal intervals and supplies a load to a rear end of the communication conveyor, two support rollers at the rearmost end of the tripper device are connected by a connecting arm. While connecting the other two arms with the connecting arm as one side.
A tripper device, wherein a substantially triangular swing frame whose sides are connected by a support arm is rotatably mounted on a transfer table by a rotation shaft provided at a vertex of the support arm in parallel with the axis of the support roller. , According to.

Further, the swinging frame may form a substantially isosceles triangle having the connecting arm as the base by the connecting arm and two support arms shorter than the connecting arm.

According to the tripper device of the present invention, when a load is conveyed, the swing frame rotates toward the rear end of the tripper device, and the support roller at the rearmost end descends. Since the deflection of the conveyor belt is minimized,
The transfer of the load from the ground conveyor belt to the tripper device is facilitated, the impact force is not applied to the support roller, and the support roller can be prevented from being damaged. As a result, stable operation of the equipment can be expected.

If the length of the two support arms is made shorter than the length of the connecting arm to form a substantially isosceles triangular oscillating frame having the connecting arm at the base, the oscillating frame is caused by the movement of the load. The movement becomes easier.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show an embodiment of a tripper device according to the present invention. The tripper device 3 includes a support roller 5 which is linearly inclined on a carrier 7.
The two rearmost support rollers 5 a and 5 b (the rearmost roller and the next roller) are connected by a connection arm 8.

Further, the connecting arm 8 is set to one side, and the other
A substantially triangular swing frame 11 whose sides are connected by support arms 9 and 10 is configured.

The oscillating frame 11 is rotated by a rotating shaft 12 provided at the apex of the support arms 9 and 10 so as to be parallel to the axes of the support rollers 5a and 5b.
Is mounted so as to be swingable in the front-rear direction (direction A in FIG. 1).

Therefore, in the tripper device 3 having the above structure,
After the ground conveyor belt 4 has passed over the support rollers 5a and 5b of the swing frame 11, it is guided and supported on other support rollers 5.

The operation of the above embodiment will be described below.

As shown in FIG. 2, when the transport of the load M is started by the ground conveyor belt 4 and approaches the support roller 5a, the load M is transferred to the tripper device 3 shown in FIG.
A force is applied to the support roller 5a in the direction of arrow B due to the weight of the swinging frame 11, so that the swing frame 11 is moved in the direction of arrow C (FIG. 2).
(Medium, clockwise) to lower the position of the support roller 5a and at the same time raise the position of the support roller 5b.

Accordingly, the drop between the contact position of the ground conveyor belt 4 with the ground roller 6 and the contact position with the support roller 5a is reduced.
a, the ground conveyor belt 4 immediately before contact with the a is hardly bent, and even if the ground conveyor belt 4 is bent, the amount of bending can be suppressed as small as possible. As a result, the load M is smoothly transported.

Next, as shown in FIG. 3, when the load M passes through the support roller 5a and reaches the support roller 5b, the force in the direction of arrow D is supported by the weight of the load M. The swing frame 11 comes into contact with the roller 5b.
Is rotated in the direction of arrow E (counterclockwise in FIG. 3), the position of the support roller 5b is lowered, and the position of the support roller 5a is raised to return to the original state. By this operation, the bulge (see FIG. 2) at the portion of the support roller 5b of the ground conveyor belt 4 disappears, and the load M is smoothly transported.

Thereafter, in the process in which the load M is conveyed in this state, the swing frame 11 is supported by the support rollers 5a.
Swings appropriately according to the force applied to the support roller 5b and
If the amount of the load M is substantially constant, the swing becomes small, and FIG.
It becomes stable at a balanced position as shown in FIG. In this state, the deflection that occurs on the ground conveyor belt 4 immediately before the support roller 5a is caused by the support roller 5a.
a is such that no excessive force is applied to a, and the swelling of the support roller 5b portion of the ground conveyor belt 4 is such that the conveyance of the load M is not hindered.

When the length of the supporting arms 9 and 10 is reduced with respect to the length of the connecting arm 8,
A substantially isosceles triangle having the connecting arm 8 as the base can be used.
If it is set to 1, there is an effect that the swing frame 11 is easily swung by the movement of the load M.

The present invention is not limited to the above embodiment, and the swing frame 11 may be a regular triangle or a triangle having different lengths of the support arm 9 and the support arm 10. The shape of the oscillating frame 11 itself can be variously changed according to the actual situation at the site if it can be oscillated with respect to the transfer table 7, and other various changes can be made without departing from the gist of the present invention. Can of course be added.

[0028]

As described above, according to the tripper device of the present invention, when a load is conveyed, the swinging frame rotates to the rear end side of the tripper device, and the rearmost support roller descends. However, since the deflection of the ground conveyor belt immediately before the support roller is suppressed as much as possible, the transfer of the load from the ground conveyor belt to the tripper device becomes easy, the impact force is not applied to the support roller, and the support roller is damaged. Can be prevented. As a result, stable operation of the equipment can be expected.

If the length of the two support arms is made shorter than the length of the connecting arm to form a substantially isosceles triangular oscillating frame having the connecting arm at the base, the oscillating frame due to the movement of the load can be used. There is an effect that movement is easily performed.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a tripper device showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a state in which a swing frame swings to a rear end side.

FIG. 3 is an explanatory diagram showing a state in which a swing frame swings from a rear end side to a front end side.

FIG. 4 is a schematic diagram showing an entire configuration of a conventional boom conveyor facility.

FIG. 5 is a schematic configuration diagram showing a conventional tripper device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Boom conveyor 2 Communication conveyor 3 Tripper device 4 Ground conveyor belt 5 Support roller 5a Last support roller 5b Next support roller at last end 7 Carrier 8 Connection arm 9 Support arm 10 Support arm 11 Swing frame 12 Rotating shaft M load

Claims (2)

[Claims] 1. A load is provided at a rear end position of a communication conveyor that conveys a load to a boom conveyor, and a ground conveyor belt is lifted up by a plurality of support rollers arranged at equal intervals and is supplied to the rear end of the communication conveyor. In the tripper device, the two supporting rollers at the rearmost end of the tripper device are connected by a connecting arm, and the connecting arm is used as one side, and the other two sides are connected by the supporting arm. And a rotary shaft provided at a vertex of the support arm in parallel with the axis of the support roller. 2. The swing frame according to claim 1, wherein the connecting arm and two supporting arms shorter than the connecting arm form a substantially isosceles triangle with the connecting arm as a base. The tripper device as described.