KR20180106176A - Scraper including sludge removal device - Google Patents

Abstract

Provided is a centrifuge which includes: a bowl through which fluid flows through a fluid supply line; a second shaft including a peeling member for peeling an adhered material adhered to the inner side surface of the bowl through withdrawal and recovery of a scraper from the inner side surface of the bowl; a first shaft coupled and spaced apart from the second shaft via a control member and transmitting rotational force to the second shaft; and a power unit applying power to the first shaft so that the first shaft can approach the second shaft or can transmit the rotational force to the second shaft. The withdrawal and recovery is performed by the rotational force applied from the power unit.

Description

[0001] SCRAPER INCLUDING SLUDGE REMOVAL DEVICE [0002]

The present invention relates to a centrifuge comprising a scraper.

In general, the sludge centrifugal separator transfers a centrifugal object to a Paulo rotating at a high speed to clean and immobilize the foreign matter contained in the inner wall of the Paul. For example, a sludge centrifugal separator is a device for remanufacturing contaminated cutting oil generated by spraying cutting oil in order to clean cutting chips, grinding stone powder, and the like resulting from grinding, cutting, polishing, to be. Such a sludge centrifuge separates not only cutting oil but also water instead of cutting oil, and it reprocesses cooling water and cooling oil for machining. In the cutting oil in which the machine tool work has been performed, a large amount of cutting chips and sludge such as grindstones generated by grinding are contained, and when the cutting oil is used without being reworked, the desired purpose of the cutting oil can not be achieved, Breakage and breakage of the coolant supply device. In order to eliminate such a problem, conventionally, a pawl driving motor for rotating the centrifugal pawl and a scraper driving motor for rotating the scraper were independently installed, and vibration and noise were generated severely. The stopper for decelerating or stopping the rotation of the centrifugal pawl could not accomplish the intended purpose due to abrasion and breakage due to prolonged use, and the centrifugal pawl could not achieve its intended purpose. The efficiency of the sludge separation efficiency in the centrifugal separation object is lowered because the sludge can not be effectively adhered to the inner diameter of the centrifugal bar because it interferes with the movement. Furthermore, there is a problem in that the cost and the volume of the apparatus are increased due to the provision of the respective driving devices for rotation and forward and backward movement.

Korean Patent Publication No. 10-2005-0029775 (Mar. 28, 2005)

An object of the present invention is to provide a centrifuge capable of separating foreign matter by positioning a peeling member for removing sludge adhering to the inside of a rotating pawl for centrifugal separation and reciprocating and rotating the peeling member .

It is another object of the present invention to provide a centrifugal separator that does not further include a reduction gear connected to a motor that rotates the pawl but operates a peeling member through a separate driving device.

It is another object of the present invention to provide a centrifuge including a structure for inducing a reciprocating motion of a shaft by controlling the rotational motion of the motor.

Another object of the present invention is to provide a centrifugal separator in which a reciprocating and rotating motion of an axis is performed in accordance with the rotation of a cylinder by a motor.

Paul, through which the fluid flows through the fluid supply line; A second shaft on which a peeling member for peeling the adhesive adhering to the inner side surface of the Paul through the withdrawal and recovery of the scraper from the inner side of the Paul is disposed at one end; A first shaft coupled and spaced apart through an intermittent member located at the other end of the second shaft and transmitting a rotational force to the second shaft; And a power section for transmitting the power such that the first shaft is raised and lowered by the second shaft and the first shaft for transmitting the rotational force to the second shaft, A centrifuge is provided for recovery.

And a stopper module for stopping the rotation by selectively making contact with the first shaft in rotation so that the rotational force is converted into the vertical reciprocating motion, wherein the stopper module is configured to move the stopper and the stopper The rotation of the stopper member can be stopped by the contact generated when the stopper is advanced into the radius of rotation when the protruding member extending from the first axis to the radial side of the first axis is rotated by the turning radius.

Also, the rotation of the first shaft is interrupted by interrupting the rotation of the projecting member, and the nut gear member is allowed to rotate, so that the rotational motion of the first shaft is capable of vertical reciprocating motion.

Further, the first shaft and the second shaft are coupled by the intermittent member, and the rotational force can be transmitted from the first shaft to the second shaft by the rotation of the motor.

The power section may include a cylinder portion connected to the first shaft and the first shaft for advancing or retracting in the second axial direction, and a motor for rotating the cylinder portion.

In addition, when the first shaft and the second shaft are coupled by the intermittent member, the rotational force can be transmitted to the second shaft by the rotation of the motor.

Further, the first shaft and the second shaft are spaced apart, the pawl is rotated by the motor, and the peeling member can be rotated together with the pawl by the blade positioned inside the pawl.

The first shaft is formed with a protruding member laterally with respect to the axial direction, and the rotation of the cylinder by the motor by the contact of the protruding member with the stopper extending in the axial direction from the cylinder can be performed together with the rotation of the first shaft.

Further, the intermittent member may be a clutch module.

An embodiment of the present invention can provide a centrifuge capable of separating foreign matter by positioning a peeling member for removing sludge adhering to the inside of a rotating pawl for centrifugal separation and reciprocating and rotating the peeling member .

In addition, one embodiment of the present invention can provide a centrifugal separator that does not further include a reduction gear connected to the rotating motor of the pawl but operates the peeling member through a separate driving device.

In addition, an embodiment of the present invention can provide a centrifuge including a structure for inducing a reciprocating motion of an axis by controlling the rotational motion of the motor.

According to another aspect of the present invention, there is provided a centrifugal separator in which a reciprocating and rotating motion of an axis is performed in accordance with rotation of a cylinder by a motor.

1 is a cross-sectional view of a centrifugal separator according to an embodiment of the present invention;
FIG. 2 (a) is a cross-sectional view showing a state in which a scraper according to an embodiment of the present invention is recovered, and FIG. 2 (b)
3 is a view illustrating a stopper module according to an embodiment of the present invention.
Fig. 4 (a) is a plan view of the scraper taken out according to the embodiment of the present invention, Fig. 4 (b) is a plan view of the scraper according to the embodiment of the present invention, (c) is a side-view partial cutaway view of a scraper taken out according to an embodiment of the present invention
FIG. 5 (a) is a plan view of the scraper formed in one direction according to another embodiment of the present invention, FIG. 5 (b) is a plan view of the scraper formed in one direction according to another embodiment of the present invention Plane side sectional view
FIG. 6A is a view showing an intermittent member to which a first shaft and a second shaft are coupled according to an embodiment of the present invention, and FIG. 6B is a sectional view of a first shaft and a second shaft according to another embodiment of the present invention. 1 is a view showing an intermittent member to which an axis is coupled;
FIG. 7A is a cross-sectional view illustrating a drive module according to another embodiment of the present invention, and FIG. 7B is a perspective view of a cylinder according to another embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, this is merely an example and the present invention is not limited thereto.

In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and may be changed according to the intention or custom of the user, the operator, and the like. Therefore, the definition should be based on the contents throughout this specification.

The technical idea of the present invention is determined by the claims, and the following embodiments are merely a means for effectively explaining the technical idea of the present invention to a person having ordinary skill in the art to which the present invention belongs.

The power unit in the embodiment to be described with reference to FIGS. 1 to 4 includes a second motor 30, a rotation module 200 And a stopper module 300, and the power unit in another embodiment, which will be described with reference to FIG. 6, may include a motor 50 and a drive module 600.

1 is a sectional view of a centrifuge 1 according to an embodiment of the present invention.

1, the centrifugal separator 1 in the present embodiment may include a pole 530, a first shaft 201, a second shaft 101, and power units 30, 200, and 300 .

First, the pawl 530 can be rotated by transmitting the rotational force of the first motor 10 through the belt 11 or the like. The rotation is performed for centrifuging the fluid supplied from the fluid supply pipe 550 located inside the pawl 530, and may be rotated at, for example, 2000 to 4000 revolutions per minute. The pawl 530 may be placed in the case 520 and rotated by the rotational force transmitted by the first motor 10 to the rotating body 540. The fluid supply pipe 550 connected to the pawl 530 through the rotating body 540 can be coupled with the rotating body 540 via the bearing 20 so that the rotational force of the rotating body 540 is not transmitted .

On the other hand, when the fluid supplied through the fluid supply pipe 550 is rotated by the rotation of the pawl 530, the fluid can be rotated in close contact with the inner wall surface of the pawl 530 by the rotational force. The fluid that is rotated in close contact with the inner wall surface can be discharged through a through hole (not shown) positioned above the paul 530. The discharged fluid can be discharged to the outside through the discharge port 521 provided in the case 520. If this process is repeated, foreign matter such as metal particles contained in the fluid may be adhered to the inner wall surface of the pawl 530. For example, cutting oil circulated for cutting in a cutting machine can be formed with chips formed during the cutting process of metal, and the fine chips can be moved together with circulation of the lubricating oil. The fluid and the foreign matter can be separated while adhering to the inner wall surface of the pawl 530 while performing a centrifugal separation process to remove foreign matter such as fine chips.

This adhered foreign matter can be removed by the operation of the peeling member 100 formed on the second shaft 101. The removal can be removed by the rotation of the peeling member 100 after the scraper 110 included in the peeling member 100 is pulled out. The details of this will be described in detail with reference to FIG. 3 and FIG.

The side on which the peeling member 100 of the second shaft 101 is formed may be positioned within the pawl 530 while the opposite side may be exposed outside of the pawl 530. [ And the intermittent member 400 may be positioned so that the coupling of the first shaft 201 and the second shaft 101 and the transmission of the rotational force are possible. The details of this will be described later in detail with reference to FIG.

Further, the second shaft 101 may be coupled to the case 520 (520a) by sealing or bearing when it is extended and positioned outside the pawl 530. This may be a structure for the case where the rotation of the peeling member 100 is rotated independently of the rotation of the pawl 530. When the rotation of the second shaft 101 rotates while the pawl 530 is stopped, the rotation of the peeling member 100 for removing foreign matter adhered to the wall surface of the pawl 530 can be performed, The pawl 530 and the peeling member 100 may be rotated together when the pawl 530 for separating the fluid from the pawl 530 is rotated. A blade 511 extending downward from the inner upper portion of the pawl 530 may be formed so that the peeling member 100 is positioned on the rotation locus of the blade 511 and is rotated by the blade 511 So that the peeling member 100 can be rotated together with the pawl 530. Here, a plurality of blades 511 may be formed. In order to prevent the blades 511 from being damaged by the centrifugal force rotating at high speed and the force pushing the fluid, the blades 511 are fixed to each other and correspond to the centrifugal force and the force pushing the fluid The blades 511 can be coupled to each other by the support body 511a.

The first shaft 201 transmitting the rotational force to rotate the peeling member 100 independently of the pawl 530 may receive rotational force from the second motor 30 included in the power section . The rotational force of the second motor 30 may be transmitted by a nut gear member 202 connected to the first shaft 201.

Accordingly, when the first shaft 201 is restricted in the rotation direction of the first shaft 201 for the linear movement of the first shaft 201, the first shaft 201 is rotated in the axial direction through the threads, Can be moved. A protrusion member 221 extending in the radial direction of the first shaft 201 may be formed at one end of the first shaft 201 and a rotation member It is possible to limit the rotation of the projecting member 221 by positioning the rotation blocking member 320 within the radius. That is, it is possible to restrict movement of the first shaft 201 in the rotational direction, and to move in the linear direction.

Therefore, the first axis 201 can be moved linearly. Of course, the rotation direction can be formed to be reciprocally movable on the linear movement locus by driving the second motor 30 in forward rotation and reverse rotation. In addition, the rotation blocking member 320 may be positioned within the rotation radius of the protrusion member 221, but may be moved outside the rotation radius. This movement can be made by advancing or retracting by the cylinder 310 connected to the rotation blocking member 320. [ That is, the rotation and linear reciprocation of the first axis 201 can be selectively adjusted.

3, the sludge adhered to the inner surface of the pawl 530 by the rotation is peeled off by the rotation of the peeling member 100 will be described.

FIG. 2 is a view illustrating a state in which the scraper 110 is taken out and recovered in the pawl 530 according to the embodiment of the present invention. FIG. 2 (a) is a perspective view of the scraper 110 according to an embodiment of the present invention, FIG. 2 (b) is a cross-sectional view showing a state in which the scraper 110 is taken out according to an embodiment of the present invention.

2 (a), there is a blade 511 connected to the pawl 530 and rotated at the same rotational speed as the pawl 530 and positioned in the pawl 530, and the blade 511, The scraper 110 can be rotated together. The rotation may be performed by superposition of the blade 511 and the peeling member 100 in a state where the scraper 110 is not withdrawn to the wall surface side of the pawl 530 but is withdrawn. That is, a contact area for rotating the blade 511 in the rotating direction of the scraper 110 may be formed.

Referring to FIG. 2 (b), the end of the drawn scraper 110 may be in contact with the inner surface of the pawl 530, with the scraper 110 being drawn out. The inner surface is formed in a columnar shape so that the foreign matter adhering to the inner side surface of the pawl can be removed due to the contact with the scraper 110 during the rotation of the pawl 530.

 The edge of the scraper 110, that is, the surface contacting with the pawl 530, can be separated from the scraper 110 except for the end portion in order to more efficiently carry out the separation of the foreign matter by contacting and rotating the scraper 110. [ 110, the foreign matter adhered to the inner surface of the pawl 530 can be peeled off.

Further, the scraper 110 may be formed so as to be thinner as it is adjacent to the inner surface, and may include an inclined portion on the rear side with respect to the rotation direction. For example, the foreign matter adhering to the inner wall of the pawl 530 may be peeled off by inclining the part of the peeling edge 110a, which is the end portion, at an angle.

The mechanism for withdrawing and recovering the scraper 110 will be described later with reference to FIG.

FIG. 3 is a view illustrating a stopper module 300 according to an embodiment of the present invention. FIG. 3 (a) shows a state in which the cylinder 310 is retracted in the stopper module 300 according to an embodiment of the present invention 3 (b) is a view showing a state in which the cylinder 310 is advanced in the stopper module 300 according to the embodiment of the present invention.

3 (a) and 3 (b), the stopper module 300 may include a cylinder 310 and a rotation blocking member 320. The connection between the first shaft 201 and the nut gear member 202 can be achieved through a threaded connection between the first shaft 201 and the nut gear member 202. [ Connection. Since the connection is made by friction between the thread formed on the outer surface of the first shaft 201 and the thread formed on the inner surface of the nut gear member 202, the connection is not a fixed connection, The nut gear member 202 may be a connection by pitch-to-pitch friction and support. Accordingly, when the nut gear member 202 supporting the first shaft 201 rotates, the first shaft 201 can be rotated together.

For example, when the rotational force is transmitted by the second motor 30, the nut gear member 202 can be rotated, and the first shaft 201 connected to the nut gear member 202 by the friction and self- Can be rotated. However, the rotational motion can be shifted in the axial direction along the thread while the rotation of the first shaft 201 is restricted. The first shaft 201 may be adjacent or spaced apart from the second shaft 101 by the movement in the axial direction. Of course, since they are connected through the thread, the adjacent or the spacing can be determined according to the rotational direction of the second motor 30. [

The limitation of the rotation described above may be a limitation of the rotation of the protruding member 221 extending in the radial direction of the shaft from the first shaft 201. [ In this embodiment, an example of limiting the rotational motion of the protruding member 221 by advancing and retracting the cylinder 310 is disclosed.

In addition, the section in which the second shaft 201 is moved up and down may be determined within a range not exceeding the length of the rotation blocking member 320. When the first axis 201 is moved in a range exceeding the length of the rotation blocking member 320, the linear movement of the first axis 201 can not be maintained, so that the rising and falling of the axis can not be controlled. For example, when the first shaft 201 is lifted up, the top end of the first shaft 201 is lifted up to a maximum point on the rotation blocking member 320 where the projection member 221 is guided in the moving direction, The top dead center 322 and the bottom dead center 321 when the first shaft descends to the maximum are determined and the protrusion member 221 is moved between the top dead center 322 and the bottom dead center 321, The length of the first electrode 320 may be determined.

The rotation blocking member 320 is connected to the cylinder axis of the cylinder 310 and the rotation of the protrusion member 221 may be restricted by the forward and backward movement of the rotation blocking member 320. The rotation of the protrusion member 221 is restricted by the rotation blocking member 320 entering the rotation radius of the protrusion member 221 and the rotation of the rotation blocking member 320 is restricted, The backward movement allows the first shaft 201 to be rotated by moving the rotation blocking member 320 out of the rotational radius of the protruding member 221. [

 When the rotation of the protruding member 221 is restricted by the advance of the rotation blocking member 320, the rotation of the first shaft 201 is stopped by the rotation of the first shaft 201 and the rotating nut member 202, 201 can be moved in the axial direction of the first shaft 201. [ The first shaft 201 can be connected to the second shaft 101 by the intermittent member 400 and the intermittent member can transmit the rotational force of the first shaft 201 to the second shaft 101 have.

4 is a cross-sectional view of the scraper 110 according to the present invention. Fig. 4 (a) is a plan view of the scraper 110 in a state in which the scraper 110 is pulled out according to an embodiment of the present invention, Fig. 4 (b) is a plan side sectional view of the scraper 110 according to an embodiment of the present invention in which the scraper 110 is withdrawn, and Fig. 4 (c) .

4A and 4B are cross-sectional side views of the scraper 110. The scraper 110 includes a body 150, a pivotal cam 130, a first stopper 131, A stopper 132, an elastic rod 140, an elastic member 141, a lead-out portion 111, and a scraper 110.

Specifically, the body 150 may receive the remaining configuration inside. The rotation cam 130 positioned at the center of the body 150 may be connected to the second shaft 101. Therefore, the peeling member 100, which rotates together with the rotation of the pawl 530, can also be rotated inwardly by the stoppers 131 and 132 as well. Here, the rotation cam 130 is rotated in the body 150 because the first shaft 201 rotates the second shaft 101 through the intermittent member 400 (see FIG. 1) The separating member 100 can be rotated while pushing the stopper 131 or 132 after the stopper 130 is rotated by a rotation angle formed by the stoppers 131 and 132. [ Of course, the scraper 110 can be pulled out by the rotation.

The intermittent member may be a clutch member and can transmit the rotational force of the first shaft 201 to the second shaft 101.

The pivot range may be determined by the positions of the first stopper 131 and the second stopper 132 extending from the inside of the body 150 in the direction of the pivot axis. Any one of the first stopper 131 and the second stopper 132 may stop the rotation cam 130 at a position where the rotation cam 130 pushes the scraper 110 out of the body 150 Or the like. For example, when the first stopper 131 is positioned at a position where the rotation cam 130 pushes the scraper 110 out of the body 150, the scrapers 110 The second stopper 132 can be positioned so that the rotation cam 130 can be stopped.

4 (c), when the scraper 110 is taken out and collected, the elastic rod 140 is pressed by the contraction and expansion of the elastic member 141. In accordance with the movement of the elastic rod 140, The scraper 110 can be withdrawn and recovered. That is, when the pivotal cam 130 pushes the elastic rod 140 and pushes it, the lead portion 111 connected to the elastic rod 140 can be partially moved to the outside of the body 150. The scraper 110 can approach the inner wall surface of the pawl 530 by the moved distance.

On the other hand, when the scraper 110 is recovered, the elastic rod 140 can be moved to the inside of the body 150 by the elasticity of the elastic member 141 pressed. That is, when the scraper 110 is recovered, it can be moved inward by the elastic force of the elastic member 141. One end of the elastic member 141 may be supported at one point of the body 150 to press the elastic rod 140 inside the body 150. [ That is, the one point may be determined at a certain distance from the center of the body 150, and may be located on a line on which the scraper 110 is drawn out and recovered.

FIG. 5 is a cross-sectional view of a scraper 120 formed in one direction according to another embodiment of the present invention. FIG. 5 (a) shows a state in which a scraper 120 formed in one direction according to another embodiment of the present invention is drawn 5B is a plan side sectional view of the state in which the scraper 120 formed in one direction according to another embodiment of the present invention is withdrawn;

5 (a) and 5 (b), as another embodiment of the present invention, description of the same parts as those of the above-described embodiment will be omitted and differences will be mainly explained.

The scraper 120 may include one scraper 120 in the body 150a. Therefore, the structure for pulling out or recovering the scraper 120, that is, the structure of the first stopper 131a, the second stopper 132a, the rotation cam 130a, the tin rod 140a, the elastic member 141a, 111a, respectively.

6 shows an embodiment of the intermittent member 400 according to the present invention. FIG. 6 (a) is a cross-sectional view of an intermittent member 400 according to an embodiment of the present invention, in which a first axis 201 and a second axis 101 are coupled 6B is a view showing an intermittent member 400 to which the first shaft 201 and the second shaft 101 are coupled according to another embodiment of the present invention.

6A, the intermittent member 400 may be formed at a position where the first shaft 201 and the second shaft 101 face each other, and includes the clutch plates 410 and 420, can do. The clutch plates 410 and 420 may include protrusions 411 and 421 facing each other in order to transmit the rotational force of the first shaft 201 to the second shaft 101 , And can be transmitted through the contact between the protrusions 411 and 421 in the rotating direction.

The ends of the protrusions 411 and 421 may be formed as inclined surfaces because the protrusions 411 and 421 may be formed by interference between the protrusions 411 and 421 when the first axis 201 approaches the second axis 101, 421 may not be in contact with each other in the rotating direction.

6 (b), as another embodiment of the intermittent member 400, the intermittent member 400 may be formed at a position where the first axis 201 and the second axis 101 face each other, And may include clutch plates 410a and 420a, respectively. The clutch plates 410a and 420a may include protrusions 411a and 421a facing each other in order to transmit the rotational force of the first shaft 201 to the second shaft 101 , And can be transmitted through the contact between the protrusions 411 and 421 in the rotating direction.

Further, the first clutch plate 420a is provided with an elastic member 420a for preventing the rotational force from being transmitted in the rotational direction due to the contact between the protruding portions 411a and 421a facing each other in the axial direction movement with the second clutch plate 410a. (430). The elastic body 430 and the first clutch plate 420a may be received in the support portion 440 and the elastic body 430 may be supported by the support portion 440 to support the first clutch plate 420a. In order to prevent the first clutch plate 420a from being separated from the support portion 440 due to the elasticity of the elastic body 430, the support portion 440 and the first clutch plate 420a may be connected to each other have. The release preventing structure is configured such that the fixing member 441a extending from the first clutch plate 420a to the supporting portion 440 side is formed in the flow hole 442 formed on the supporting portion 440 at a position corresponding to the fixing member 441a It can be a structure to be inserted. The flow hole 442 may be formed in a direction parallel to the direction in which the elastic body acts in elasticity and may be formed to have a length corresponding to the buffer zone in which the first clutch plate 420a can be buffered. That is, the formation length of the flow hole 442 in the axial direction can determine the buffer section.

FIG. 7 shows a driving module 600 and a cylinder portion 610 according to another embodiment of the present invention, and differs from the embodiment shown in FIG. 1 in the power portion. FIG. 7 (a) is a cross-sectional view illustrating a drive module 600 according to another embodiment of the present invention, and FIG. 7 (b) is a perspective view of a cylinder portion 610 according to another embodiment of the present invention.

7 is an embodiment that includes a power section that does not include the stopper module 300 and the rotation module 200, as an example different from the above-described embodiment. The power section in this embodiment includes a motor 50 And a driving module 600.

7 (a), the power section of the present embodiment includes a motor section 50 and a cylinder section 610 rotated by a motor. A cylinder axis connected to the cylinder section 610 includes a first shaft 201, . Accordingly, the first shaft 201 can be reciprocated by the cylinder portion 610, and the first and second shaft 201 and the respective interlocking members 400 on the second shaft 101 side contact and separate from each other And the first shaft 201 can be rotated by the motor 50 that rotates the cylinder 610. [ 6 (b) shows a structure in which the first shaft 201 and the cylinder portion 610 are rotatable together to prevent the first shaft 201 from being damaged by twisting due to the rotation of the cylinder portion 610 .

The driving module 600 further includes a cylinder portion 610 extending from the cylinder portion 610 and a fixed engaging portion 630 and a coupling portion 630 extending from the engaging portion 630 to the cylinder portion 610, And a rotating shaft 650 capable of transmitting the rotational force of the motor 50 through the rotating shaft 650. The cylinder portion 610 rotated by the motor 50 can position the bearing 640 therebetween in order to receive rotational friction with the support portion 620 supporting the cylinder portion 610 upward. Therefore, the cylinder portion 610 is fixed, but rotational friction that may be generated by rotation may not occur. The support portion 620 and the coupling portion 630 may be spaced apart from each other by a predetermined distance to avoid friction between the coupling portion 630 and the support portion 620. The coupling portion 630 is a structure extending from the cylinder portion 610 in order to transmit the rotational force of the motor 50 to the cylinder portion 610. The rotation shaft 650 connected to the driven gear 52 is connected to the coupling portion 630 As shown in Fig.

Referring to Fig. 7 (b), the cylinder portion 610 has a stopper (not shown) extending in the direction of the first shaft 201 611, and the first shaft 201 may further include an extending portion 201a extending laterally with respect to the axial direction. The extended portion 201a prevents relative rotation of the cylinder portion 610 with the rotation speed when the cylinder portion 610 rotates so that the sealing portion and the connecting portion of the cylinder portion 610 and the first shaft 201 are not damaged The cylinder 610 is restrained by the stopper 611 which rotates together with the rotation of the cylinder 610, so that the breakage can be prevented. Further, the stopper 611 can be positioned adjacent to both sides of the extending portion 201a in the rotation direction, and can adjust or restrict the section that can be independently rotated.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, . Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by equivalents to the appended claims, as well as the appended claims.

1: Centrifuge
10: First motor
30: Second motor
50: Motor
11: Belt
20, 40: Bearings
51: drive gear
52: driven gear
100: peeling member
101: 2nd axis
110, 120: Scraper
110a, 120a: peeling blade
111, 111a:
130, 130a:
131, 131a: first stopper
132: second stopper
140, 140a: elastic rod
141, 141a: elastic member
150, 150a: body
200: rotation module
201: 1st axis
202: rotary gear
201a: extension part
210:
211: Bush
220: Head portion
221: projecting member
300: Stopper module
310: cylinder
320:
321: bottom dead center
322: Top point
400:
410, 410a: second clutch plate
411, 411a:
420, 420a: first clutch plate
421, 421a:
430: elastic body
431: first elastic support
432: second elastic support
440:
441, 441a: Fixing member
442:
443:
511: Blade
511a: Support
520: Case
520a: upper case
520b: Lower case
521: Outlet
530: Paul
540: rotating body
541: driven gear
550: fluid supply pipe
600: drive module
610:
611: Stopper
620:
630:
640: Bearings
650:

Claims (8)

Paul, through which the fluid flows through the fluid supply line;
A second shaft having a peeling member at one end thereof for peeling the adhering substance adhering to the inner side surface of the bar through the withdrawal and recovery of the scraper from the inner side of the bar;
A first shaft coupled and spaced apart through an intermittent member located at the other end of the second shaft and transmitting a rotational force to the second shaft; And
And a power unit transmitting power so that the first shaft is raised and lowered by the second shaft and transmitting power to the first shaft to transmit a rotational force to the second shaft,
And the withdrawing and returning are performed by the rotational force transmitted by the power section.
The method according to claim 1,
Wherein the power unit includes a stopper module for selectively making contact with the first shaft in rotation to stop the rotation so that the rotational force is converted into a vertical reciprocating motion,
The stopper module includes:
Wherein the rotation stopping member is advanced to the rotation radius when the projection member extending from the first axis to the radial side of the first axis is rotated by a turning radius, And stopping said rotation through a contact generated by said centrifugal force.
The method of claim 2,
The first shaft and the second shaft are coupled by the intermittent member and the rotational force is transmitted from the first shaft to the second shaft by rotation of the motor.
The method according to claim 1,
Wherein the power section includes a cylinder portion connected to the first shaft and the first shaft for advancing or retracting in the second axial direction, and a motor for rotating the cylinder portion.
The method of claim 4,
Wherein the cylinder portion is configured such that when the first shaft and the second shaft are coupled by the intermittent member, a rotational force is transmitted to the second shaft by rotation of the motor.
The method of claim 4,
Wherein the first shaft and the second shaft are spaced apart, the pawl is rotated by a motor, and the peeling member is rotated with the pawl by a blade located inside the pawl.
The method of claim 4,
Wherein the first shaft is formed with an extending portion extending laterally with respect to the axial direction, and the rotation of the cylinder by the motor by the contact of the extension portion with the stopper extending in the axial direction from the cylinder portion, A centrifuge, done.
The method according to claim 2 or 4,
Wherein the intermittent member is a clutch module.

Images