KR101152176B1 - Centrifugal - Google Patents

Abstract

The present invention relates to a centrifugal separator having a built-in reduction unit, and more particularly, to a centrifuge capable of reducing the noise and volume of the device by placing part or all of the reduction unit inside the receiving portion of the inner drum. .
The configuration includes an external drum; A screw inner drum embedded in the outer drum and having an inner receiving portion and a mounting portion drawn into the inner drum; A driving unit for transmitting a rotational driving force to the external drum; A reduction unit for transmitting the rotational driving force transmitted to the external drum to the screw inner drum; A first relay unit connecting the external drum and the input unit of the reduction unit; A second relay unit having a corresponding mounting portion with the mounting portion and connecting the screw inner drum and an output portion of the reduction unit so that a part or all of the reduction unit is located inside the receiving portion; And supporting means for connecting the first and second relay units to each other. Including,
The supporting means is
An annular extension portion formed in the first relay unit and disposed in the accommodation portion and protruding toward the mounting portion; A corresponding extension part formed in the second relay unit and introduced into the extension part; And a bearing interposed between the inner peripheral surface of the extension portion and the outer peripheral surface of the corresponding extension portion; And a control unit.
Centrifuge of the present invention made of such a configuration,
Part or all of the reduction unit is located inside the receiving portion of the screw inner drum, the volume of the device is reduced, there is an effect that the quietness is improved.
And, as the supporting means interconnect the first and second relay members, the outer drum and the screw inner drum connected to the first and second relay members, respectively, are more firmly supported, thereby also making noise of the device and The vibration is reduced and the durability of the reduction unit is improved.

Description

Centrifuge with built-in reduction unit {Centrifugal}

The present invention relates to a centrifugal separator having a built-in reduction unit, and more particularly, to a centrifuge capable of reducing the noise and volume of the device by placing part or all of the reduction unit inside the receiving portion of the inner drum. .

In general, the centrifuge is for separating the sludge generated from the treatment process, such as sewage, manure, industrial wastewater, livestock wastewater, etc. into water and solids, a conventional centrifuge is shown in FIG.

As shown in the drawing, a conventional centrifuge has an outer drum 10 having a separation liquid outlet 11 and a solids discharge outlet 12 on each side thereof, and an inlet 21 and a supply port 22, respectively. Screw inner drum 20 embedded in the) is provided, the separation of water and solids is made by centrifugal force and the rotation difference according to their high speed rotation.

In addition, the outer and inner drum shafts 13 and 23 are coupled to both sides of the outer drum 10 and the screw inner drum 20, respectively, and bearing blocks at the ends of the outer and inner drum shafts 13 and 23, respectively. (B) is installed, the outer drum 10 and the screw inner drum 20 is supported by the frame (F) supporting the bearing block (B).

In addition, the driving unit 30 is connected to one bearing block (B), the reduction unit 40 is connected to the other bearing block (B), the outer drum 10 and the screw inner drum 20 is the drive unit Rotated by 30, but the rotation difference is generated by the reduction unit 40.

On the other hand, the outer drum 10 and the screw inner drum 20 is rotated at a high speed bar, the conventional centrifuge has a cover 50 covering between the two outer drum shaft 13 for the safety and noise of the operator It is provided.

The conventional centrifuge prevents the noise caused by the rotation of the outer drum and the screw inner drum as the cover is provided, but the deceleration unit is located outside the cover to block the noise generated by the driving of the reduction unit. It can not be configured.

As a result, a means for preventing noise generated by the reduction unit is not provided, so a separate technology for this is required.

In addition, the deceleration unit is located on the outside of the cover, and furthermore, in order to support the deceleration unit of weight, the connection part must be firm, and thus there is a disadvantage in that the volume and weight of the device increase.

In addition, there is a problem that the bolt is fastened to the deceleration unit by the vibration generated when the device is driven, so that the device does not operate normally, or even the deceleration unit is separated from the device.

In order to solve the above problems, the centrifuge having a built-in reduction unit according to the present invention,

External drum;

A screw inner drum embedded in the outer drum and having an inner receiving portion and a mounting portion drawn into the inner drum;

A driving unit for transmitting a rotational driving force to the external drum;

A reduction unit for transmitting the rotational driving force transmitted to the external drum to the screw inner drum;

A first relay unit connecting the external drum and the input unit of the reduction unit;

A second relay unit having a corresponding mounting portion with the mounting portion and connecting the screw inner drum and an output portion of the reduction unit so that a part or all of the reduction unit is located inside the receiving portion; And

Supporting means for interconnecting the first and second relay units;

≪ / RTI >

The supporting means is

An annular extension portion formed in the first relay unit and disposed in the accommodation portion and protruding toward the mounting portion;

A corresponding extension part formed in the second relay unit and introduced into the extension part; and

A bearing interposed between the inner peripheral surface of the extension part and the outer peripheral surface of the corresponding extension part;

And a control unit.

In addition, one end of the extension part is provided with a cover having an oil seal fitted to an outer circumferential surface of the corresponding extension part and contacting one side of the bearing.

The other end of the corresponding extension portion is provided with a stopper in contact with the other side of the bearing.

Centrifuge having a built-in reduction unit according to the invention,

Part or all of the reduction unit is located inside the receiving portion of the screw inner drum, the volume of the device is reduced, there is an effect that the quietness is improved.

And, as the supporting means interconnect the first and second relay members, the outer drum and the screw inner drum connected to the first and second relay members, respectively, are more firmly supported, thereby also making noise of the device and The vibration is reduced and the durability of the reduction unit is improved.

In addition, there is an effect that the supporting means and the first and second relay members are more firmly connected by a cover and a stopper.

1 is a cross-sectional view of a conventional centrifuge.
Figure 2 is a cross-sectional view of the centrifuge according to the present invention.
3 is an enlarged view of a reduction unit part in FIG.
4 is an enlarged view of the outer drum shaft portion in FIG.

Hereinafter, with reference to the accompanying drawings in the detailed description of the present invention will be described in more detail.

As shown in FIGS. 2 to 4, the centrifuge having a built-in reduction unit according to the present invention (hereinafter, referred to as a 'centrifuge') is largely an external drum 100, an internal drum screw 200, and a driving unit 300. , The reduction unit 400, the first relay unit 500, the second relay unit 600 and the supporting means 700.

Looking at each configuration,

The outer drum 100

Pipe-shaped flat portion 110,

Tapered portion 120 having a solid discharge port 121 and connected to one side of the flat portion 110, and

External drum shaft 130 connected to one side of the tapered portion 120

.

The screw inner drum 200

As having an inner receiving portion 211 and embedded in the outer drum 100,

A flat screw 210 having a mounting portion 212 and a sludge supply port 213 drawn into the receiving portion 211 and embedded in the flat portion 110;

A tapered screw part 220 having a sludge inlet part 221 and connected to one side of the flat screw part 210 and embedded in the taper part 120, and

Inner drum shaft 230 connected to one side of the tapered screw unit 220

.

Here, the accommodating part 211 refers to an inner space of the flat screw part 210, and a section in which the sludge supply port 213 is formed is partitioned into the sludge accommodating part 211a by the partition wall 214. .

In addition, a separation space S for sludge is formed between the outer drum 100 and the screw inner drum 200 by the screws 210 and 220.

The drive unit 300

As to transfer the rotational driving force to the outer drum 100,

As shown in Figures 2 and 4,

Motor 310,

Pulleys 320 and 330 connected to the motor 310 and the external drum shaft 130, and

Belt 340 interconnecting each of the pulleys (320, 330)

It is made, including.

That is, the driving unit 300 is to rotate the external drum 100 by transmitting the rotational driving force of the motor 310 to the external drum shaft 130 through the pulleys 320, 330 and the belt 340. .

Meanwhile, at this time, the inner drum shaft 230 is coupled to a bearing 131 (see FIG. 4) embedded in the outer drum shaft 130 to support the screw inner drum 200.

Here, the outer drum shaft 130 and the pulley 330 connected thereto are connected to each other by a first bearing block B1, and the first bearing block B1 is connected to a first frame F1 erected below it. Is supported by.

The reduction unit 400 is

As to transmit the rotational driving force transmitted to the outer drum 100 to the screw inner drum 200, so that a rotation difference (回轉 差) occurs between the outer drum 100 and the screw inner drum 200,

As shown in Figures 3 and 4,

An external input unit 410, and

Shaft-shaped output unit 420 connected to the input unit 410,

It is made, including.

The deceleration unit 400 shown for reference is in a state where a known planetary reducer is applied.

Here, the reduction unit 400 is inserted into the receiving portion 211 of the screw inner drum 200 by the second relay member 600 to be described later, whereby the centrifuge of the present invention is the reduction unit 400 ) Is installed in the screw inner drum 200 is to reduce the volume and noise of the device.

And as shown, the deceleration unit 400 is installed in a form in which a portion of the output unit 420 side is inserted into the receiving portion 211 of the screw inner drum 200, by design change as necessary Of course, the deceleration unit 400 may be installed in a form in which all of the reduction units 400 are inserted.

On the other hand, the second bearing block (B2) is installed on the other side of the output unit 420 in the reduction unit 400, the second bearing block (B2) by the second frame (F2) erected below it Is supported.

That is, the outer drum 100, the screw inner drum 200, and the deceleration unit 400 are the first and second frames F1 and F2, and first and second parts installed on the upper parts thereof, respectively. It is supported by the bearing blocks (B1, B2).

The first relay unit 500 is

As shown in Figures 2 and 3,

The external drum 100 and the input unit 410 of the reduction unit 400 are connected to each other.

Here, the separation unit outlet 510 is formed in the relay unit 500, and is connected to the other side of the flat portion 110 of the external drum 100 and the input unit 410 of the reduction unit 400 by bolting. Then, the rotational driving force of the external drum 100 is transmitted to the deceleration unit 400.

The second relay unit 600

As connecting the screw inner drum 200 and the output unit 420 of the reduction unit 400,

As shown in Figures 2 and 3,

An internal fastening hole 610 to which the output unit 420 is fitted and fixed; and

Corresponding mounting portion 620 with the inner drum 200 mounting portion 212

Consisting of,

Some or all of the reduction unit 400 is to be located inside the receiving portion 211 of the inner drum (200).

As a result, when the external drum 100 is rotated by the driving unit 300, the input unit of the deceleration unit 400 connected to the first relay unit 500 and the first relay unit 500 connected thereto ( 410 will rotate together,

When the output unit 420 of the reduction unit 400 rotates as the input unit 410 rotates, the second relay unit 600 coupled thereto rotates the screw inner drum 200.

In addition, when the rotational driving force of the outer drum 100 is transmitted to the screw inner drum 200, the difference in rotation between each other by the centrifugal force and the reduction unit 400,

As a result, the sludge introduced into the sludge accommodating part 211a through the sludge inlet 221 is separated through the sludge supply port 213 by the centrifugal force of the outer drum 100 and the screw inner drum 200. Supplied to the space S,

Here, the sludge is separated into a separation liquid and a solid by centrifugal force and a rotation difference between the outer drum 100 and the screw inner drum 200, and the separation liquid is separated from the outlet 510 of the first relay unit 500. Is discharged to, the solid is to be discharged by being transferred to the solid discharge port 121 of the outer drum 100 by the screw inner drum (200).

The supporting means 700 is

As connecting the first and second relay units (500, 600),

As shown in FIG. 3,

Is formed in the first relay unit 500, the annular extension portion 710 is disposed in the receiving portion 211 protruding toward the mounting portion 212,

A corresponding extension part 720 formed in the second relay unit 600 and drawn into the extension part 710, and

A bearing 730 interposed between an inner circumferential surface of the extension part 710 and an outer circumferential surface of the corresponding extension part 720.

.

Here, it is preferable that locking jaws 711 and 721 are formed on the inner circumferential surface of the extension part 710 and the outer circumferential surface of the corresponding extension part 720 so that the bearing 730 can be fixed.

As a result, as the supporting means 700 interconnects the first and second relay members 500 and 600, the outer drum 100 and the screw inner drum 200 connected thereto are more firmly connected. To be supported,

In addition, by firmly supporting the input unit 410 and the output unit 420 of the reduction unit 400, by reducing the noise and vibration of the device generated as the centrifuge rotates at high speed and of the reduction unit 400 It improves durability.

And as shown,

One end of the extension part 710 has an oil seal 741 fitted thereinto the outer circumferential surface of the corresponding extension part 720, and has an outer ring one side surface of the bearing 730. The cover 740 is brought into contact with,

The other end of the corresponding extension part 720 may be provided with a stopper 750 which is in contact with the other inner surface of the inner ring of the bearing 730.

According to this, the supporting means 700 and the first and second relay units 500 and 600 are more firmly fixed, and in particular, the flow in the axial direction of the outer drum 100 and the screw inner drum 200. This is prevented, further reducing the noise and vibration of the device.

Meanwhile, as illustrated in FIGS. 2 and 3, a cover frame 800 is installed outside the outer drum 100.

The cover frame 800 is

As to prevent the occurrence of safety accidents or excessive noise due to the outer drum 100 and the screw inner drum 200 is rotated at high speed,

It has a solids discharge path 810 and a separation liquid discharge path 820 below the both ends, one end is supported by the outer drum shaft 130, the other end ) Is supported by the non-insertion portion of the reduction unit 400, the outer drum 100, the screw inner drum 200, the reduction unit 400, the first and second relay units (500, 600) It is installed in the form of wrapping.

Here, the non-insertion portion means a portion exposed from the reduction unit 400 to the outside of the accommodation portion 211 of the screw inner drum 200 and the first relay unit 500.

In other words, the cover frame 800 is to cover not only the outer drum 100 and the screw inner drum 200 but also the deceleration unit 400 to block noise generated by the deceleration unit 400.

As a result, the centrifugal separator of the present invention is primarily embedded in the screw inner drum 200 and is wrapped by the cover frame 800 again, thereby reducing the speed of the deceleration unit 400. Noise is greatly reduced.

In addition, the deceleration unit 400 is built into the screw inner drum 200, so that the connection structure becomes more lightweight and robust.

In the above description of the present invention with reference to the accompanying drawings, a centrifugal separator having a specific shape and structure has been described mainly, but the present invention can be variously modified and changed by those skilled in the art, such variations and Changes should be construed as falling within the protection scope of the present invention.

100; External drum
110; Flat part
120; Tapered portion 121; Solids outlet
130; Outer drum shaft 131; bearing
200; Screw inner drum
210; Flat screw
211; Receiver 212; Mounting part
213; Sludge supply section 214; septum
220; Taper Screw
221; Sludge Input
230; Internal drum shaft
300; The driving unit
310; Motors 320 and 330; Pulley 340; belt
400; Reduction Unit
410; Input unit 420; Output
500; First relay unit
510; Separation outlet
600; Second relay unit
610; Fasteners 620; Correspondence mounting part
700; Supporting means
710; Extension 711; Jaw
720; Corresponding extension 721; Jaw
730; bearing
740; Cover 741; Oil seal
750; stopper
800; Cover frame
810; Solids discharge furnace 820; Separation
B1, B2; First and second bearing blocks
F1, F2; First and second frames
S; Separation space

Claims (2)

External drum 100;
A screw inner drum (200) embedded in the outer drum (100) and having an inner receiving portion (211) and a mounting portion (212) drawn into the inner portion thereof;
Driving unit 300 for transmitting a rotational driving force to the external drum (100);
A deceleration unit 400 for transmitting the rotational driving force transmitted to the external drum 100 to the screw inner drum 200;
A first relay unit 500 connecting the external drum 100 and the input unit 410 of the reduction unit 400;
It has a corresponding mounting portion 620 and the mounting portion 212, the portion of the reduction unit 400 is located inside the receiving portion 211 of the screw inner drum 200 and the reduction unit 400 A second relay unit 600 connecting the output unit 420; And
Supporting means (700) for interconnecting the first and second relay units (500, 600);
Including,
The supporting means 700 is
Is formed in the first relay unit 500, the annular extension portion 710 is disposed in the receiving portion 211 protruding toward the mounting portion 212,
A corresponding extension part 720 formed in the second relay unit 600 and drawn into the extension part 710, and
A bearing 730 interposed between an inner circumferential surface of the extension part 710 and an outer circumferential surface of the corresponding extension part 720.
Centrifuge having a built-in reduction unit, characterized in that consisting of.
The method of claim 1,
One end of the extension part 710 has an oil seal 741 fitted thereinto the outer circumferential surface of the corresponding extension part 720, and is in contact with one side surface of the bearing 730. 740 is provided,
The other end of the corresponding extension portion (720) is provided with a stopper (750) in contact with the other side of the bearing (730), the centrifuge having a built-in reduction unit.

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