JPH05185034A - Vibrating feeder provided with grizzly - Google Patents

Abstract

PURPOSE:To easily and simply separate a rock falling into the interval of grizzly bars without interrupting an operation when the rock is held and stuck between grizzly bars under way and is not released by joining one end of a connecting bar to the piston rod of a hydraulic cylinder with a pin around a vertical axis. CONSTITUTION:In a vibrating feeder 20 fitted with a grizzly where 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 and both a movable bar 26b freely turnable in the horizontal direction and a fixed bar 26a tightly provided in a movable frame 22 are alternately arranged. Furthermore, a stopper 26c is provided projectingly in the lower end of the movable bar 26b and also a spring box 54 is formed by pinching the stopper 26c and repulsively fitting the compression coil springs 56, 58 in both sides thereof. The respective spring boxes 54 are connected by a connection bar 50. The tip of a piston rod 40a is joined to one end of the connection bar 50 by a pin. A hydraulic cylinder 40 is provided in the outside of the 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. 7, 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 I-type steel or rail material is diverted. The frame 2a formed in this way is loaded on the pedestal 9 through the compression coil springs 7 (7a, 7b) installed in front and rear as a whole, and the High-speed vibration on the circumference is performed in the traveling direction to transfer the load to the 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 supply rock to increase the supply rock. In a vibrating feeder with grizzly that sorts and transports into lumps and fine granules, the grizzly bars are alternately arranged in two types of a fixed bar and a movable bar, and the fixed bar is fixedly installed in a feeder trough via a horizontal bar,
One end of the movable bar is rotatably pivoted in a horizontal direction around a vertical axis and a stopper is provided below the other end of the movable bar. Each of them is connected by a connecting rod, and one end of the connecting rod is pin-joined to a piston rod of a hydraulic cylinder around a vertical axis.

[0005]

In the present invention, when the rock is caught in the slit between the grizzling rivers and stays there and does not move during the operation of the vibrating feeder with grizzly, the present invention operates the hydraulic cylinder to move the piston rod. By moving back and forth, the connecting rod and the spring box connected thereto are reciprocally moved, and the movable bar is rotated around the pin fulcrum via the compression coil spring of the spring box. As a result, the slits between the grizzly rivers in which the rocks are embedded expand, and the rocks separate and fall or are transported on the grizzly. After the rock has separated, stop the piston rod position of the hydraulic cylinder at the initial position where the slits are equal.

[0006]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 to 4 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 part of the vibrating feeder with grizzling,
FIG. 4 is a front view of the main parts of the 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 2
2 is placed, and the load is transferred in the downstream direction 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,
Inside thereof, a flat plate portion A, a first stage grizzling portion B, and a second flat portion B, which are composed of a flat plate 23 made of a wear-resistant material, are provided in the traveling direction.
It is arranged in the staggered portion C. Each grizzly river 24 of the first-stage grizzly section B is a horizontal bar 24A, 2 orthogonal to this.
It is fixed to 4A at both ends. On the other hand, in the grizzly bar 26 of the second-stage grizzling portion C, the fixed bar 26a and the movable bar 26b are arranged at equal intervals in the width direction, and the fixed bar 26a is fixed to the horizontal bar 27, while the movable bar 26b is fixed. As shown in FIG. 3, one end of the starting point is pin-joined by a vertical pin shaft pivotally supported by the horizontal shafts 28, 28 so as to be rotatable in the horizontal direction, and a flat plate-like stopper 26 is provided below the other end.
c is projected downward. A spring box 54 for accommodating compression coil springs 56 and 58 having the same material, strength and length and having the same specifications is disposed so that the stopper 26c is sandwiched from both sides. All the spring boxes 54 immediately below are connected by a connecting rod 50, one end of which penetrates the movable frame 22, and the other end of which is pin-joined to a piston rod 40a of the hydraulic cylinder 40 which penetrates the frame 22 through a fork end 52. The hydraulic cylinder is fixed to a support 22 a provided on the movable frame 22 outside the movable frame 22.

The operation of the present invention configured as above will be described. When the rock is stuck between the grizzly rivers 26 and 26 during operation and does not move, for example, as shown in FIG. 4, when only the rock 100 is stuck between the movable bar 26b and the fixed bar 26a, the grizzly grip If the piston rod 40a of the hydraulic cylinder 40 is moved to the left without stopping the operation of the vibrating feeder 20, the rock 100 easily separates because the slit between the grizz rivers 26, 26 of the rock 100 is enlarged. On the other hand, as shown in FIG. 4, the rock 100 is between the movable bar 26b and the fixed bar 26a, and the rock 1 is between the fixed bar 26a and the movable bar 26b.
When 02 are simultaneously engaged, first, when the piston rod 40a of the hydraulic cylinder 40 is advanced to the left, the movable bar 26b on the right side of the rock 102 is blocked by the rock 102 and remains stationary, and the spring box 54 below it. Since the connecting rod 50 moves to the left side by compressing and contracting the compression coil spring 58, the movable bar 26b on the left side of the rock 100 moves to the left side, and the slit in which the rock 100 is fitted expands and the rock 100 moves. Leaves. Rocks 10
After 0 is released, when the piston rod 40a is retracted to the right this time, the slit in which the rock 102 is fitted is expanded and the rock 102 is removed.

As described above, the detaching method when one or two rocks are fitted in the slits between the grizzly rivers is as described above, but when the rocks are fitted in three or more slits. Needless to say, it can be separated by the above method. The stroke of the piston rod 40a of the hydraulic shilling 40 is determined by the compression coil springs 56, 58 enclosed in the spring box 54.
Since the difference from the natural length to the maximum compression length (sum of spring coil wire diameters) is sufficient, a short hydraulic cylinder is sufficient. The width of the spring box 54 is set so that fine particles that fall into the spring box 54 that moves left and right do not enter the movable bar 26b.
The width may be made sufficiently small, or if this is not possible, covers 26d may be provided on both sides of the lower end of the movable bar 26b immediately above the spring box 54.

[0009]

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 view of the main parts of the vibrating feeder with grizzling according to the embodiment of the present invention.

FIG. 5 is a perspective view of a conventional grizzling vibrating feeder.

FIG. 6 is a side view of a conventional vibrating feeder with grizzling.

FIG. 7 is a front view of a conventional grizzling vibrating feeder.

[Explanation of symbols]

 1 Hopper 2 Vibration Feeder with Grizzly 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 Grizzly Frame 21 22 Movable Frame 22a Support 23 Flat Plate 24 Grizzling River 24A Horizontal Bar 25 Horizontal Bar 26 Grizzling River 26a Fixed Bar 26b Movable Bar 26c Stopper 26d Cover 27 Horizontal Bar 28 Bearing 29 Pin Shaft 30 Compression Coil Spring 40 Hydraulic Cylinder 40a Piston Rod 50 Connection Rod 52 Fork end 54 Spring box 56 Compression coil spring 58 Compression coil spring 100 Rock 102 Rock A Flat plate part B 1st stage grizzling part C 2nd stage grizzling part

Claims (1)

[Claims] 1. A vibrating feeder with a grizzle in which a plurality of grizzly rivers are arranged in parallel in the direction of movement of the feed rock and which sorts and feeds the rocks into large lumps and fine granules. The fixed bars are alternately arranged in two types, and the fixed bars are fixed to the feeder trough via horizontal bars. One end of the movable bar is horizontally rotatably pin-joined around the vertical axis. A stopper is provided below the end, and each of the spring boxes in which compression coil springs are mounted on both sides of the stopper are connected by connecting rods, and one end of the connecting rod is pinned around the piston rod of the hydraulic cylinder around a vertical axis. Vibrating feeder with grizzled joints.