KR20090091582A

KR20090091582A - Vibration screen device

Info

Publication number: KR20090091582A
Application number: KR1020080016932A
Authority: KR
Inventors: 정일섭
Original assignee: 주식회사 파워텍
Priority date: 2008-02-25
Filing date: 2008-02-25
Publication date: 2009-08-28

Abstract

The present invention relates to a vibrating screen sorting apparatus for separating and sorting sorting objects such as aggregates according to particle size by screen vibration, and more particularly, an eccentric shaft (15) in the center of the screen box (12) in which the screen (13) is installed. By installing the support to generate vibration by the rotational drive by the drive motor to sort the sorting object supplied on the screen 13 according to the particle size, the eccentric shaft 15 is the eccentric shaft portion located on both sides of the screen box Bearings 27 and 17 'which support bearings 17 and 17' are installed on the screen support frame 20 with the eccentric shaft portions left and right rotation shaft portions 15b to support rotation of the entire eccentric shaft. 27 ') supports the eccentric shaft with bearings at four points to reduce the vibration load of the bearing and the load of the screen box to maximize the durability of the device. The screen box 12 is used by the hydraulic cylinder 35 of one side to adjust the inclination angle of the screen to improve the screen replacement work and to adjust the inclination angle according to the physical properties of the object to be screened effectively, in particular for the selection of fine aggregates, etc. It has its features.

Description

Vibrating Screen Separator {VIBRATION SCREEN DEVICE}

The present invention relates to a vibrating screen sorting device for separating and sorting sorting objects such as aggregates according to the particle size by screen vibration, and more particularly, bearing the eccentric shaft generating the vibration of the screen with a bearing of four points. Maximize the durability of the device by reducing the vibration load and the load load of the screen box, and simply adjust and use the inclination angle of the screen, thereby improving the screen replacement work and adjusting the inclination angle according to the properties of the sorting object to improve the sorting efficiency. It relates to a vibrating screen sorting device to maximize.

In general, aggregates or waste aggregates collected from quarries are crushed and sorted according to particle size, so that they are processed to suit the intended use.

Such a conventional screening device, in particular, a screening device for separating and sorting according to the particle size by screen vibration after crushing the screening object, as shown in Figure 1, in the center of the box 2, the screen 3 is installed The eccentric shaft 4 is rotatably supported by two bearings 7 and 7 ', and the lower portion of the screen box 2 is cushioned by springs 5 and 5' installed on the upper and left sides of the frame. This is achieved by installing a support.

Such a sorting device rotates the eccentric shaft 4 by a driving means to vibrate the screen box 2 while rotating the shaft, thereby sorting the sorting object supplied on the screen 3 according to the particle size. will be.

At this time, the spring (5) (5 ') for supporting the lower portion of the screen box (2) is to perform a buffer operation.

However, the conventional vibrating screen sorting device has the following problems.

First, since the eccentric shaft is supported only by two bearings 7 and 7 'installed on both sides of the screen box, the springs 5 and 5' on the lower left and right sides of the screen box 2 are vibrated or stopped. There was a problem that the load of the device is generated because this is always supported by the shot.

That is, since the load load of the left and right springs 5, 5 'is easily damaged, and the vibration load is also concentrated on the left and right two bearings 7, 7', the damage is easily damaged. there was.

In particular, while the elastic force is weakened by the load load of the left and right springs (5) (5 '), the vibration width of the screen is gradually reduced to have a problem that the screening efficiency is lowered.

Second, since the screen box with the screen is always installed at a fixed angle of inclination, it becomes very inconvenient during screen replacement work and there is a problem that the efficiency of separation screening is deteriorated because it cannot be adjusted according to the properties of the screening object. It was.

Third, the screen box has two bearings on the left and right, and the spring support structure on the lower side cannot secure the rotation RPM of the eccentric shaft, so the screen amplitude is limited. There was a very difficult problem.

That is, the fine aggregate has a problem that the wet process requires a separate device or expensive equipment.

The present invention has been invented to solve the above problems of the prior art, and since the eccentric shaft generating vibration of the screen is supported by four points of bearings, the vibration load of the bearing and the load of the screen box can be reduced. The purpose is to maximize durability.

The present invention is intended to simply adjust and use the inclination angle of the screen is to improve the screen replacement work, as well as to adjust the inclination angle according to the properties of the screening object to maximize the sorting efficiency.

This invention,

In the left and right center of the screen box on which the screen is installed, the eccentric shaft part of the eccentric shaft is supported by a rotatable bearing,

The lower part of the screen box is spring-loaded to generate vibration by an eccentric shaft driven by a driving motor to sort the sorting object supplied on the screen according to the particle size,

The eccentric shaft is achieved by supporting a bearing which is installed on the upper side of the screen support frame with the left and right rotating shaft portions of the eccentric shaft portion in which the bearing is supported and supports the entire eccentric shaft in rotation.

The present invention is configured so that one side of the support frame for supporting the screen box is rotatable about the rotation axis, the other side is connected to the fixed frame and the cylinder rod of the hydraulic cylinder to adjust the inclination angle of the screen by the expansion and contraction operation of the hydraulic cylinder. It has its features.

The present invention is characterized by supporting the angle-adjusted state of the screen by a support bar connected to the fixed frame.

Since the present invention supports the eccentric shaft that generates the vibration of the screen with four bearings, the vibration load of the bearing and the load of the screen box are reduced to maximize the durability of the device as well as to simply adjust the inclination angle of the screen. It is to be used to improve the screen replacement work and to adjust the inclination angle according to the properties of the screening object to provide an effect that can be used in the sorting efficiency, in particular, such as fine aggregates and easy to work even in the rain.

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

Vibrating screen sorting apparatus of the present invention, as shown in Figures 2 and 3,

The eccentric shaft portion 15a of the eccentric shaft 15 is supported by the rotatable bearings 17 and 17 'at the left and right centers of the screen box 12 on which the screen 13 is installed,

The lower portion of the screen box 12 is provided to the screen 13 by generating vibrations by the eccentric shaft which is driven by a drive motor (not shown) by elastically supporting the left and right springs installed on the screen support frame from left and right. In selecting an object according to the particle size,

The eccentric shaft 15 is a left and right rotating shaft portion 15b of the eccentric shaft portion 15a on which the bearings 17 and 17 'are supported and installed on the screen support frame 20 to support the eccentric shaft in rotation. 27) and 27 '.

In this case, the load of the screen box 12 is configured such that the left and right bearings 27, 27 ′ and the springs 25, 25 ′ are distributedly supported.

That is, in the present invention, the eccentric shaft 15 is supported on four sides of the bearings 17, 17 ', 27, 27' on both sides of the eccentric shaft portion 15a and the rotating shaft portion 15b. In addition to distributing the vibration load, the load load of the screen box is distributed with the springs 25 and 25 ', respectively.

In addition, the support frame 20 for supporting the screen box 12 is configured to be rotatable around the rotating shaft 30 in one inclined downward position, the lower end is screened in the inclined upward position of the other side The cylinder rod 36 of the hydraulic cylinder 35 connected to the support frame 20 is connected to the fixed frame 40 to adjust the rotation of the screen support frame 20 about the rotation axis by the expansion and contraction of the hydraulic cylinder. While adjusting the inclination angle of the screen (13).

At this time, a plurality of fixing holes 51 are hinged to the lower end of the support bar 50 perforated along the longitudinal direction to the fixing frame 40, and the support bar (side) of the screen support frame 20 50 is inserted into the guide bracket 55 is guided, the fixing pin 57 is inserted into the pin hole 56 of the guide bracket 55 is inserted into the fixing hole 51 of the support bar, the angle adjusted screen It is configured to support.

As an unexplained reference numeral 60 denotes a conveyor for moving the sorting object.

Next will be described the operation and action of the present invention configured as described above.

Referring to the screening process of the screening object using the apparatus of the present invention, by rotating the eccentric shaft 15 by a drive motor (not shown), the screen box 12, the screen 13 is installed is vibrated.

At this time, the screen box 12 is spring 25 (25 ') is supported on the left and right lower side and the shock absorber is to perform a vibration operation.

As such, when the screening object is supplied to the upper part in the vibrating state of the screen 13, the screening object is sorted and separated because the movement is changed according to the particle size of the screening object.

The present invention does not support the rotation and vibration operation of the eccentric shaft 15 by two bearings as in the related art, but bearings 17 and 17 respectively on both sides of the eccentric shaft portion 15a and the rotation shaft portion 15b. '), (27) and (27') are supported in four places to distribute the vibration load of the bearings, as well as the load load of the screen box to the bearings (27) (27 ') and the spring (25) on the rotating shaft portion ( 25 ') is distributed support to prevent damage of the spring as well as the bearing.

In addition, the present invention is to simply adjust the inclination angle of the screen to replace the screen of the screen box 12 or to increase the screening efficiency by adjusting the inclination angle of the screen according to the properties of the screening object.

That is, as the rod 36 of the hydraulic cylinder 35 connected to the support frame 20 expands and contracts, the support frame 20 supporting the screen box 12 rotates about the rotation shaft 30 on one side. It is to simply adjust the inclination angle of the screen (13).

When the inclination angle of the screen is adjusted in this way, the support bar 50 connected to the fixing frame 40 is separated by the fixing pin 57 inserted into the pin hole of the guide bracket 55 on the side of the support frame 20. According to the guide bracket (55) to adjust the lifting and lowering guide pin 55 of the guide bracket (55) and the fixing pin (57) of the support hole (50) by inserting the fixing pin (57) again of the screen It will support the angle adjusted state.

Therefore, even when the vibration screening operation in the state of adjusting the angle of the screen as described above, the load of the hydraulic cylinder 35 is reduced by the support operation by the support bar 50.

Therefore, by adjusting the inclination angle according to the moisture content and aggregate size of the screening object by the operation as described above, in the dry state to increase the inclination angle and in the semi-dry state and the high water content in the state of lowering the inclination angle to sorting objects in rainy conditions In preparation for the back can be sorted by adjusting the inclination angle.

And to adjust the inclination angle of the screen, and to firmly support the eccentric shaft with four bearings, while the eccentric is smaller than the conventional eccentric shaft, the size is reduced to 1/2 to 1/4 and the screen box is spring-loaded to support As a result, the rotation RPM of the eccentric shaft can be made faster than before, so that the sorting operation can be performed more effectively, as well as the fine frame and sand can be effectively used for the sorting operation.

1 is a side view showing the main portion of the conventional sorting device.

2 is a front view of the sorting apparatus of the present invention.

Figure 3 is a side view showing the main portion of FIG.

** Description of the symbols for the main parts of the drawings **

12: screen box 13: screen

15: eccentric shaft 17,17 ', 27,27': bearing

20: support frame 25,25 ': spring

30: rotating shaft 35: hydraulic cylinder

40: fixed frame 50: support bar

55: guide bracket 57: fixing pin

Claims

The eccentric eccentric shaft 15a of the eccentric shaft 15 is supported by rotatable bearings 17 and 17 'at the left and right centers of the screen box 12 provided with the screen 13,

The lower part of the screen box 12 has a left and right springs mounted on the screen support frame from left and right to generate vibrations by an eccentric shaft which is driven by a driving motor to rotate the sorting object. In the vibrating screen sorting device for sorting according to,

The eccentric shaft 15 is a left and right rotating shaft portion 15b of the eccentric shaft portion 15a on which the bearings 17 and 17 'are supported and installed on the screen support frame 20 to support the eccentric shaft in rotation. 27) Vibrating screen sorting device, characterized in that made by supporting the (27 ').

The method of claim 1,

The support frame 20 for supporting the screen box 12 is configured to be rotatable about an axis of rotation 30 at an inclined downward position on one side, and the lower end is a screen support frame at an inclined upward position on the other side. The cylinder rod 36 of the hydraulic cylinder 35 connected to the installation 20 is connected to the fixed frame 40, and the screen support frame 20 is rotated about the rotation axis by the expansion and contraction operation of the hydraulic cylinder. Vibrating screen sorting device, characterized in that configured to adjust the inclination angle of the (13).

The method of claim 2,

The fixing frame 40 is hinged to the lower end of the support bar 50, a plurality of fixing holes 51 are drilled along the length direction on the upper side, the support bar 50 on the side of the screen support frame 20 A guide bracket 55 is inserted into the guide bracket 55, and a fixing pin 57 inserted into the pin hole 56 of the guide bracket 55 is inserted into the fixing hole 51 of the support bar to adjust the angle of the screen. Vibrating screen sorting device, characterized in that configured to support.