JPH05185035A - Vibrating feeder provided with grizzly - Google Patents

Abstract

PURPOSE:To easily and simply separate a rock sandwitched and stuck into the interval of grizzly bars without interrupting an operation when the rock is sandwitched and stuck between the grizzly bars during running by joining the tip of a piston rod to a stopper with a pin around a vertical axis and tightly providing a hydraulic cylinder in a movable frame. CONSTITUTION:In a vibrating feeder 20 fitted with a grizzly wherein a plurality of pieces of grizzly bars 26 are arranged in parallel toward the advancing direction of supplied rocks, one end of the grizzly bars 26 is supported by pins via bearings 27 to form the movable bars freely turnable in the horizontal direction. Stoppers 28 are provided projectingly in the lower parts of the other hand and also compression coil springs 50 are repulsively fitted between the respective stoppers 28. The tips of a piston rod 40a are connected to the movable bar 26M of the outermost side. A hydraulic cylinder 40 is arranged in a movable frame 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibrating feeder with a grizzly for transferring fine particles of rocks or ores at the site of crushing stone, mines, dam construction sites, etc., while sieving and removing crushed pieces and sediment. The present invention relates to a vibrating feeder with a grizzly for transferring a large amount of supplied rock to a crusher.

[0002]

2. Description of the Related Art Conventionally, in order to produce aggregates for crushed stones, aggregates for concrete, and asphalt, rocks collected at the mining site have been supplied and fine particles or sediment mixed in the rocks before being crushed by a crusher. A vibrating feeder with grizzling (abbreviated as grizzly feeder) 2 was used as a means for removing the amount and transferring it to the crusher. This is
As shown in FIG. 8, a U-shaped frame (trough) 2a
The flat plate portion 3, the first-stage grizzling portion 4, and the second-stage grizzling portion 5 are arranged in the interior of the frame in the traveling direction, and the frame 2a
The hopper 1 is fixed to the frame 2a around the upper end of the, or is installed independently of the frame 2a. Then, the grizzly river 4a forming the grizzled portions 4 and 5,
A plurality of 5a (usually 6 to 12, most often 8) are fixedly arranged along the traveling direction of the rock. Grizz River 4
Both a and 5a have the same width or taper toward the advancing direction. Therefore, the slits between the grizzly rivers are formed to be the same or diverging toward the advancing direction, and usually square wood, I-shaped steel or rail material is diverted. It The frame 2a thus formed is loaded on the pedestal 9 via the compression coil springs 7 (7a, 7b) installed at the front and rear as a whole, and the electric motor 8, the V belt 8a, and the driving unit (oscillating unit) 6
The high-speed vibration on the circumference is performed in the traveling direction, and the load is transferred downstream.

[0003]

In the above-mentioned conventional vibrating feeder with grizzly, all grizzly rivers are arranged in parallel in the traveling direction of the rock and are fixed in the frame (trough). Therefore, in the usual case, fine particles and sediment mixed in the rock fall from the slits between these grizzly rivers, and only the rocks are transferred to the downstream direction while rolling, sliding, and jumping by the upper surface of the grizzly river. Occasionally, a part of the rock stuck in a wedge shape between the slits and stopped, preventing the transfer of the rock supplied later. Therefore, in order to remove this stuck rock, the supply of rock is stopped, the operation is stopped, and the removal work is performed manually by the worker, but this work is complicated and the operation is interrupted, so the production efficiency is high. Was hindering.

[0004]

[Means for Solving the Problems] In order to solve the above-mentioned problems, in the vibrating feeder with grizzly of the present invention, a plurality of grizzly rivers are arranged in parallel in the advancing direction of the supplied rocks to increase the size of the supplied rocks. In a vibrating feeder with grizzly that sorts and transfers into lumps and fine granules, one end of each grizzliver is rotatably pin-joined around a vertical axis, and a stopper is provided below the other end of each grizzliver. At the same time, a compression coil spring is elastically mounted between the adjacent stoppers, and a hydraulic cylinder in which the stopper of the outermost grizzly rib of the grizzly rib and the tip of the piston rod are pin-joined around the vertical axis is fixedly mounted on the movable frame. And

[0005]

In the present invention, when the rock is caught in the slits between the grizzling rivers and stays there without moving during operation of the vibrating feeder with grizzly, the hydraulic cylinder is operated while continuing the operation. Then, the piston rod is retracted to rotate the outermost grizzly river. At that moment, the slits of the outermost grizzly river and the inner grizzly river are temporarily enlarged,
The rock clogged up in the meantime separates from it. Then, after that, the grizzly rib located further inside is rotated in the direction of the hydraulic cylinder operated by the expanding force of the compressed compression coil spring, and the slit between the adjacent grizzle bars is temporarily expanded. In this way, the sequentially expanding slits move one after another, so the rocks that are trapped between the slits are released one by one. After all the rocks have separated, the piston rod of the operated hydraulic cylinder returns to its original position and each slit is held at the same interval.

[0006]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 to 5 show an embodiment according to the present invention, FIG. 1 is a plan view of a vibrating feeder with grizzling (also referred to as grizzly feeder), FIG. 2 is a front sectional view taken along line XX of FIG. 1, and FIG. Is a perspective view of the main parts of the vibrating feeder with grizzling,
FIG. 4 is a front sectional view of a main part of the vibrating feeder with grizzling, FIG.
[Fig. 3] is a schematic front view of a vibrating feeder with grizzling. In the figure, 10 is a hopper, 20 is a vibrating feeder with grizzling (grizzly feeder), and the grizzly feeder 20 is mounted on a frame 21 via a compression coil spring 30 and a movable frame 22.
Is placed, and the load is transferred to the downstream side by a substantially circumferential high-speed vibration by an electric motor and a driving unit (not shown). The movable frame 22 is formed in a substantially U shape in plan view,
A flat plate 2 of wear-resistant steel plate is placed in the interior thereof in the traveling direction.
The flat plate portion A and the grizzled portion B formed by 3 are arranged.
Grizzle bars 26 (fixed bar 26
F) is fixed, but other than Grizz River 2
6 (movable bar 26M) has a pair of upper and lower bearings 27,
It is rotatably supported around a vertical axis by 27, and is placed on the horizontal bar 25 at the other end side, and a flat plate-like stopper 28 is projectingly provided below, as shown in FIG.
A compression coil spring 50 having a natural length slightly longer than the length formed between the stoppers 28, 28 is clamped and sealed, and the outermost stopper 28 of the movable bar 26M is provided with a fork end 29. Is fixed to the outside of the movable frame 22, and is connected to the piston rod 40a that penetrates the movable frame 22. 50a is a cylindrical compression coil spring guide. The compression coil spring 50 sealed between the stoppers 28, 28 has the same material, strength, and size, and has the same specifications.

In the above embodiment, the stopper 28 is provided below the lower end of each grizzly river 26, ... And the compression coil spring 50 is sealed between the stoppers. Direct compression coil spring 5
You may make it interpose 0. In either case,
A part of rocks and sediment fall from above the slit formed between each grizzly, so to protect the compression coil spring 50, just above the compression coil spring, for example, to a cross section of angle steel or the like. It is better to provide a letter-shaped protective cover.

The operation of the present invention configured as above will be described. When the rocks are stuck between the grizzly rivers 26, 26, ... During operation and become immobile, for example, as shown in FIG. 5, the slits S ₁ , S ₂ , S ₃ , ..., Between the grizzly rivers 26, 26 ,. Of S ₈ , the slit S
Rocks 101, 102, ₁ , S ₃ , S ₆ , S ₈ , respectively
A separation procedure when 103 and 104 stay will be described. In this case, rocks 101 or rocks 10 at both ends
4 is released first. To this end, while continuing the operation of the vibrating feeder 20 with grizzling, the left hydraulic cylinder 40L
When the piston rod 40a of the slit S is projected, the right side of the slit S ₁ of the grizzly river 26 is resisted against the expansion force of the compression coil spring 50 of the slits S ₂ , S ₄ , S ₅ , and S ₇ in which the rock is not fitted. Since the slit S ₁ is rotated toward one side and the slit S ₁ is expanded, the rock 101 is dropped or transferred and separated.
After that, the piston rod 4 of the left hydraulic shilling 40L
0a is returned to the original state. Next, the right hydraulic cylinder 40
Projecting the R of the piston rod 40a, by rotating the left Gurizuriba 26 rocks 104 to the left, the slit _{S 8} are enlarged rock 104 is disengaged. Then, by moving further into the retracted right from the piston rod 40a to the original state of the right hydraulic cylinder 40R, narrower than the specified dimensions slits S _8. As a result, the narrowed gap of the slit S ₈ causes the other slits S ₁ ,
S ₂ , ..., S ₇ , and each slit S ₁ ,
S _2, ..., _{S 7} are results that are spread from each specified dimension, it rocks 102 and 103 are disengaged. In the procedure described above, the rock is inserted into a plurality of slits, but if the rock intervenes in only one slit, operate the left or right hydraulic cylinder to Move the piston rod in the direction in which the slit expands.

In addition, in the vibrating feeder with grizzling in which all the rocks are often caught in all the slits, in addition to the above-described embodiment, the vibrating feeder with grizzlies is provided between the fixed bars at both ends and the inner surface of the movable frame 22. The problem can be solved by newly enclosing a compression coil spring. The detachment procedure in this case also starts with removing the outer rock.

As described above, in the vibrating feeder with a grizzle according to the present invention, even if a plurality of rocks are caught between the slits, the rocks can be removed while continuously operating. Since the stroke of the piston rod 40a of the hydraulic cylinder 40 is about half the length between the slits, a short hydraulic cylinder is sufficient.

[0011]

As described above, in the vibrating feeder with grizzly of the present invention, even if rocks are stuck in two or more slits between grizzly rivers during operation and remain stagnant,
Since this rock can be easily removed while the operation is continued, there is no need to interrupt the operation to perform the removal work. Therefore, driving operability and maintainability are improved, and production efficiency is improved.

[Brief description of drawings]

FIG. 1 is a plan view of a vibrating feeder with a grizzle according to an embodiment of the present invention.

FIG. 2 is a front cross-sectional view of the vibrating feeder with grizzling, which is taken along line XX of FIG. 1 according to the embodiment of the present invention.

FIG. 3 is a perspective view of essential parts of a vibrating feeder with grizzling according to the embodiment of the present invention.

FIG. 4 is a front sectional view of an essential part of a vibrating feeder with a grizzle according to an embodiment of the present invention.

FIG. 5 is a schematic front view of the vibrating feeder with grizzling according to the embodiment of the present invention.

FIG. 6 is a perspective view of a conventional grizzling vibrating feeder.

FIG. 7 is a side view of a conventional vibrating feeder with grizzling.

FIG. 8 is a front view of a conventional grizzling vibrating feeder.

[Explanation of symbols]

1 Hopper 2 Vibration Feeder with Grizzle 2a Frame 3 Flat Plate 4 1st Stage Grizzle 4a Grizzle River 5 2nd Stage Grizzle 5a Grizzver 6 Drive 7 Compressor Coil Spring 8 Electric Motor 8a V Belt 9 Frame 10 Hopper 20 Grizzle Frame 21 22 Movable Frame 22a Support 23 Flat Plate 24 Horizontal Bar 25 Horizontal Bar 26 Grizz River 26F Fixed Bar 26M Movable Bar 27 Bearing 28 Stopper 29 Fork End 30 Compression Coil Spring 40 Hydraulic Cylinder 40L Hydraulic Cylinder (Left) 40R Hydraulic Cylinder (Right) 40a Piston rod 50 Compression coil spring 100 Rock 101 Rock 102 Rock 103 Rock 104 Rock A Flat plate portion B Grizzly portion S _{1 to} S ₈ slit

Claims (1)

[Claims] 1. A vibrating feeder with a grizzly, in which a plurality of grizzly rivers are arranged in parallel in the direction of advance of the supplied rocks and which sorts and feeds the rocks into large lumps and fine particles, and one end of each grizzly river is rotated. A pin is freely joined around the vertical axis, a stopper is provided below the other end of each grizzly bar, and a compression coil spring is elastically mounted between the adjacent stoppers. A vibrating feeder with a grizzle in which a hydraulic cylinder in which the stopper and the piston rod tip are pin-joined around a vertical axis is fixedly mounted on a movable frame.