KR20030039198A - An apparatus for connecting lubricant oil lines of back-up roll - Google Patents

Abstract

PURPOSE: An apparatus for connecting lubricant lines of back-up rolls is provided to improve work efficiency by connecting and separating fluid lines automatically and firmly during replacement of the back-up rolls using fittings capable of opening or closing the fluid lines by magnetic force and monitoring separation of the fluid lines. CONSTITUTION: In a rolling line in which back-up rolls and rolling rolls are mounted in rolling stand to perform rolling of strip, the apparatus is characterized in that fixed fittings (100) to which lubricant inlet lines and a plural outlet lines are connected are mounted on the rolling stand, an electromagnet (24) is fixed to the front of a fixed box (20) at which the fixed fittings (100) are positioned, moving fittings (120) to which the inlet lines for injecting lubricant into the back-up roll chocks and a plural outlet lines are connected are mounted on a magnetic moving box (38) in back-up roll chocks for supporting both ends of the back-up rolls, the fixed fittings (100) and moving fittings (120) are correspondingly connected to the inlet lines and outlet lines in case that the back-up roll chocks are mounted on the rolling stand, and the electromagnet (24) is firmly connected to the moving box (38) by magnetic force so that lubricant is automatically supplied if the back-up roll chocks are mounted on the rolling stand while supply of the lubricant is cut off if the back-up roll chocks are separated from the rolling stand.

Description

Lubrication line connecting device of backup roll {AN APPARATUS FOR CONNECTING LUBRICANT OIL LINES OF BACK-UP ROLL}

The present invention relates to a connection device for a fluid line supplied to a backup roll, and more particularly, the fluid line is automatically fastened when the backup roll is inserted, and is automatically separated when withdrawn, so that the fluid line can be monitored. The present invention relates to a lubrication line connecting device of an improved backup roll to improve the working efficiency as well as to ensure a smooth fluid supply at all times.

In general, the lubricating oil supplied to the BACK UP ROLL is supplied with lubricating oil to the inside of the CHOCK 202 for supporting and rotating the backup roll 200 as shown in FIG. The rotation of the backup roll 200 is smoothly performed, and lubricating oil is circulated to prevent the temperature rise of the bearing (BEARING) inside the choke 202 so as to smoothly roll.

The configuration of the rolling stand 250 and the configuration of the fluid line in which the thin roll 200 is mounted as described above are illustrated in FIG. 2, and a work roll (WORK ROLL) ( 208 is assembled to the work roll choke 204 to roll the strip (STRIP) 206 is a rolled material, the backup roll 200 supports the work roll 208 while supporting the upper and lower work roll 208 It is driven by the rotation of) to make the rolling work smoothly.

The fluid line supplied to the backup roll 200 is one in-line line 210 and two out-line lines per choke 202 so that the lubricating oil is circulated. 212, lubricating oil is supplied to the inlet line 210, circulated in the bearing inside the choke 202, and then discharged to the outlet line 212.

The fastening and disconnection of the fluid line is performed when the backup roll 200 is replaced. When the backup roll 200 is inserted into the rolling stand 250, it is connected by using a quick coupler as shown in FIG. 3. After the operator manually inserts the quick coupler (214) of the inflow line 210 and the outflow line 212 to which the lubricating oil is supplied to the rolling stand 250, the quick coupler 214 is Lock it using a lever 216 so as not to fall off.

In addition, even when the operator manually removes the quick coupler 214 and then replaces the backup roll 200, the quick coupler 214 is removed from the choke 202, and then left on the floor. Due to the crushing and abrasion caused by the impact on the floor, when reassembling, the fastening is not smooth.

On the other hand, when the quick coupler 214 is fastened as described above, the quick coupler 214 is dropped due to the vibration of the rolling stand 250, in which case the operation is performed without confirming the dropout lubrication. There is a problem that rolling is performed in a state where oil is not supplied to the internal bearing of the choke 202 and the bearing is burned out, leading to a large equipment accident, such as a rolling delay time.

In order to solve the above problems, the quick coupler 214 is to be automatically fastened and separated, and it should not be dropped, and in order to be able to monitor the presence or absence of the fastening and separation should be made automatically, a general connection device In the case of the self sealing coupling (SELF SEAL COUPLING) 300 as shown in Fig. 3a), the fluid at the moment when the fluid line is connected by the sliding by the contact of the fittings 304 and 308 assembled therein Flows and the fittings 304 and 308 block the line due to the tension of the springs 302 and 310, so that the operator pulls and pushes the handle 306 to engage and disengage the fastening and disengagement. You have to.

Also, in the cam coupler 400 as shown in FIG. 3B), the male and female are inserted, and then locked using the cam lever 402. It is a structure that can be separated only when dismantled, so it is impossible to apply it in manufacturing automatic fastening and separating device.

The present invention is to solve the problems as described above, the object of the fluid line is to automatically drop off the fluid line while the fluid line is automatically fastened and separated when the backup roll replacement using a connector that can open and close the fluid line by magnetic force. It provides a lubrication line connection device for backup rolls that can be monitored to ensure a smooth supply of fluid at all times and to improve work efficiency.

1 is a cross-sectional view showing the lubricating oil flow state inside the backup roll choke of the rolling mill;

2 is a side view showing a state of supplying lubricating oil to the backup roll choke of the rolling mill;

Figure 3 a), b) is a detailed view showing a general fluid line connection device,

a) is a sectional view showing a self-seal coupling,

b) is a sectional view showing the cam coupler;

4 is a configuration diagram in which a lubrication line connecting device of a backup roll according to the present invention is mounted on a rolling stand;

5 is an exploded perspective view of a lubricating line connecting device of the backup roll according to the present invention;

6 is an explanatory view showing a state in which the fixed connector and the flow connector are separated from each other in the lubrication line connecting device of the backup roll according to the present invention;

7 is a cross-sectional view showing a state in which the fixed connector and the flow connector is coupled to each other in the lubrication line connection device of the backup roll according to the present invention;

A), b) of Figure 8 is a configuration diagram of the fixed connector and the flow connector provided in the lubrication line connecting device of the backup roll according to the present invention,

a) a partial cutaway cross section, b) a combined cross section;

9 is an exploded perspective view of a fixed connector and a flow connector provided in the lubrication line connection device of the backup roll according to the present invention;

A), b) of Figure 10 is a coupling state diagram of the lubrication line connection device of the backup roll according to the present invention,

a) is a state diagram before coupling of fixed and flow connectors,

b) is a coupling state diagram of the fixed connector and the flow connector;

Figure 11 is a flow chart illustrating the step-by-step operation of the lubrication line connection device of the backup roll according to the present invention.

<Description of the symbols for the main parts of the drawings>

5 ...... Body 12 ..... Cover

16 ..... Spring 20 ..... Fixed Box

24 ..... Electromagnet 28 ..... Socket

32 ..... rail 38 ..... fluid box

100 .... Fixed End Connections 106 .... Sleeve

108 .. Appearance member 120 .... Flow connector

124 .... connection seal 125 .... spring

128 .... Nut 200 .... Backup Roll

202 .... Choke 210 .... Inflow Line

212 .... Spill Line 250 .... Rolling Stand

In order to achieve the above object, the present invention, in the rolling apparatus for rolling the strip by mounting the back-up rolls and rolling rolls in the rolling stand, the rolling stand is fixed to the lubricating oil inlet line, a plurality of outlet lines are connected An electromagnet is fixed to the front surface of the fixing box in which the connector is mounted, and the fixing connector is located, and a backup roll choke supporting both ends of the backup roll is connected to an inflow line for injecting lubricant therein and a plurality of outlet lines. The flow connector is mounted in a flow box of magnetic material, and the fixed connector and the flow connector are connected to the inflow lines and the outflow lines to coincide with each other when the backup roll choke is mounted to the rolling stand. If the backup roll choke is mounted on the rolling stand by connecting the box firmly by magnetic force, By supplying lubricating oil, and when the backup roll choke is separated from the rolling stand, by providing a lubrication line connecting device of the backup roll, characterized in that the supply of lubricating oil is cut off.

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

The lubrication line connecting device 1 of the backup roll according to the present invention is applied to a rolling apparatus in which the backup rolls 200 and the rolling rolls 208 are mounted in the rolling stand to roll the strip 206.

The present invention has a body portion 5 on the side of the rolling stand, the body portion 5 is provided with a fixed size box 20, as shown in Figure 5, the fixed box has both sides The groove portion 20a is inserted into a rail 32 formed inside both sides of the housing 10 on the outside thereof. In addition, a buffer plate 26 is positioned on the upper side, and is coupled to the rail 32 of the housing 10 together with the fixing box 20, and two female sockets 18 are fastened to the upper side of the buffer plate 26. The female socket 18 has a spring 16 inserted into the outer surface thereof, and a male socket 14 is inserted into the female socket, which is under the cover 12 of the upper side thereof. It is fastened to the housing 10 by a cover 12 is fastened to the inner side of the female socket 18 is coupled to the plurality of bolts (12a).

The electromagnet 24 is fastened to the front of the fixed box 20 as a bolt 24a, and the limit switch 22 is fastened to the upper surface of the electromagnet 24.

On the other hand, the fixed connector 100 is a plurality of fixed box 20 is mounted, they are each mounted to the fixed box 20 by a socket (SOCKET) 28, the socket 28 is fixed to the outside thereof After the nut 30 is screwed and fitted, the threaded portion of the socket 28 is inserted from the rear of the fixing box 20, and the fixing connector 100 inserted into the fixing box 20 is connected to the fixing box 20. It is screwed with the screw portion of the socket 28 in the interior, it is to firmly fix each fixing connector 100 to the inner back of the fixing box 20 using the fixing nut 30.

In addition, the flow connector 120 coupled corresponding to the fixed connector 100 has a number corresponding to the fixed connector 100, the flow connector 120 is a flow box respectively by the sockets (42) It is mounted to (38), which is first inserted into the socket 42 to the rear of the flow box 38 and then inserted, the threaded portion of the socket 42 to the inside of the flow box 38 is extended After the flow connector 120 enters the inside of the flow box 38 and is fastened to the threaded portion of the socket 42, the flow connector 120 is connected to the rear side of the flow box 38 using the fixing nut 40. It has a structure that is firmly fixed. In addition, a plurality of limit bars 36 respectively corresponding to the limit switches 22 of the electromagnet 24 are fastened to the upper surface of the flow box 38.

On the other hand, since the fixed connector 100 each have the same structure, any one of them will be described in detail below, and the other will be denoted by the same reference numerals.

As shown in FIG. 8 and FIG. 9, the fixing connector 100 is bonded to the inner surface of the nut member 101 which is processed in a hexagon or an octagon and the inside of which is threaded, using a bond. Gasket 102 is inserted, the front is open in a long tubular shape, has a circular step (103a), the opposite side is blocked, and several holes (103b) with the same area in the inner flow path to the side And, the assembly seal 103 is formed into the nut 101, the protrusion 103c is formed in the center of the blocked back.

Then, the spring 104 is inserted between the outer surface of the assembly seal 103 and the inner surface of the nut 101, and has an inner diameter that is slightly larger than the diameter of the assembly seal 103, so A cylindrical sleeve (SLEEVE) 106 that allows for smooth sliding has a circular stepped portion 106a at the front side, and is fitted to the assembly seal 103 in succession to the spring 104, the inner side thereof. O-rings (105) which can have grooves at both ends of the lubrication to prevent lubrication oil are inserted, respectively, and inserted into the outer surface of the assembly seal (103).

In addition, a cylindrical outer member 108 is fitted to the outside of the spring 104 and the sleeve 106, the outer member 108 is machined on the front and the same as the rear thread of the nut 101. With a thread 108a, an uneven circular jaw 108b is machined in the inner center thereof to engage the circular stepped 106a of the sleeve 106 so that the spring 104 is positioned therein, and the sleeve 106 Is fixed so as not to fall from the nut member 108. In addition, the gasket 109 is fitted into the annular space formed between the exterior member 108 and the sleeve 106.

In addition, in the flow connector 120 that is fastened and separated from the fixed connector 100, since each of the flow connector 120 has the same structure with each other, any one of them will be described in detail below, The same reference numerals are used to designate the same.

The flow connector 120 is processed in a hexagonal or octagonal, as shown in Figures 8 and 9, the inside is bonded using a bond (BOND) to the inner surface of the threaded nut member 128 After the gasket (GASKET) 127 is inserted, the connection ring 126 and the spring 125 are inserted in succession, the front side is blocked by the front end side of the spring 125 and the assembly of the fixed connector 100 in the center portion The groove 124a is dug so that the protrusion 103c of the seal 103 can be inserted, and has the same diameter as that of the assembly seal 103 of the fixed connector 100, and in the middle is equal to the area of the inner diameter. The connection seal 124 in which several holes 124b are processed is inserted.

And, the front is processed into a jaw 122a having the same outer diameter to move in contact with the sleeve 106 of the fixed connector 100, the inside has a groove so that the O-ring 121 can be inserted, the inside The jaw portion of the hollow body 122 which is processed to be inclined like the outer surface of the connection seal 124 is inserted into the outside of the connection seal 124 and the spring 125, the screw portion of the rear end of the nut 128 It is configured to be screwed into).

In addition, a fastening ring 123 is fitted to the outer circumferential surface of the hollow body 122, and a circular stone step 122c is formed in the middle of the outer circumferential surface such that the fastening ring 123 is maintained between the nut member 128. .

Referring to the operation of the present invention configured as described above are as follows.

Lubrication line connection device 1 of the backup roll of the present invention is the body portion 5 including the electromagnet 24 and the fixed connector 100 as shown in FIG. 10) and one inlet line 210 and two outlet lines 212 are connected to the rear side and fixed to the rolling stand 250, and the flow connector 120 is fastened to the backup roll choke 202. One inlet line 210 and two outlet lines 212 are connected to the flow box 38 to be integrally installed on the side of the backup roll choke 202.

After the start of the work, the replacement of the backup roll 200 is made, the flow box 38 is advanced by the movement of the backup roll 200, the flow connector 120 in the flow box 38 is fixed box It is fastened in correspondence with the fixed connector 100 of the (20), the power is supplied to the electromagnet (24) to firmly support the flow box 38, the fixed connector 100 and the flow connector 120 is also accurately fastened It works.

At this time, the limit switch 22 is touched to the limit bar 36 of the flow box 38 to output the state to the output device (not shown), the operator can check the fastening state, the flow box 38 When it is dropped and the flow connector 120 is separated, the limit switch 22 is to act to check whether there is a dropout.

On the other hand, the housing 10 of the body portion 5 is fixed to the rolling stand 250, the fixed box 20 is inserted into the rail 32 of the housing 10 is fixed left, right and up, down Can be moved. In addition, the spring 16 fastened to the shock absorbing plate 26 serves to buffer the fixing box 20 when the upper and lower operations are performed, and the male socket 14 inserted into the inner surface of the female socket 18. The silver spring 16 acts to prevent it from being separated while operating up and down, and the electromagnet 24 is processed to be inclined in a concave shape to generate magnetic force when the power box is supplied after the flow box 38 is inserted. The flow box 38 is firmly supported so as not to fall off.

In addition, the limit switch 22 is the flow box 38 is inserted into the electromagnet 24 of the fixed box 20 and the fluid line is fastened, and then touched to the limit bar 36 to the fastened state When it is confirmed that the fluid line is dropped, the limit switch 22 is to act to confirm the presence or absence of the drop.

And, as shown in Figure 7, the fixing connector 100 and the flow connector 120 is connected to the protrusion 103c of the assembly seal 103 to the groove 124a of the connection seal 124 Inserted into the assembly seal 103 pushes the connecting seal 124, the front surface of the body of the flow connector 120 is pushed into the sleeve 106 of the fixed connector 100 into the exterior member 108 of the fixed connector 100 At the same time, the sleeve 106 is pushed into the outer member 108 so that the machined holes 103b of the assembly seal 103 are exposed, and the holes are located inside the body of the flow connector 120 and connected. By communicating with the hole 124b of the seal 124, the lubricating oil flowing in the assembly seal 103 of the fixed connector 100 flows automatically inside the body 122 of the flow connector 120, and the connection seal 124. Is supplied into the backup roll choke 202 through the holes 124b of the &lt; RTI ID = 0.0 &gt;

In this case, since the fixed connector 100 and the flow connector 120 is magnetized to fix the flow box 38 by the magnet 24, this state is maintained.

Meanwhile, even when the fixed connector 100 and the flow connector 120 are disassembled, the spring 125 behind the connection seal 124 pushes the connection seal 124 to contact the step of the front of the body 122. The leakage of water is prevented, and the sleeve 106 of the fixing connector 100 also prevents leakage of the fixing connector 100 by blocking the hole 103b of the assembly seal 103 by pushing the spring 104 disposed at the rear side. It is to work.

Lubrication line connection device 1 of the backup roll of the present invention operating as described above, by replacing the backup roll 200, the power supply of the electromagnet 24, and withdraw the backup roll 200 by the flow box ( 38) is separated and the flow connector 120 is also separated at the same time to act as a backup roll 200 is drawn out.

The effect of the present invention as described above is shown step by step in FIG.

This operating sequence is merely exemplary, and the present invention is not limited thereto, and may be carried out in a manner different from the above, and all such operating steps made using the present invention are within the scope of the present invention.

As described above, according to the present invention, the fluid lines 210 and 212 are automatically inserted and inserted by the backup roll choke 202 using the fixed and flowable connectors 100 and 120 that can be opened and closed by magnetic force. When the backup roll choke 202 is pulled out, the connector 100 and 120 are automatically separated to prevent falling oil from lubricating oil and to monitor the dropping of the connector 100 and 120 due to vibration. This prevents major equipment accidents and improves work efficiency.

At the same time, the backup roll choke 202 is always provided with a smooth fluid supply, as well as to improve the work efficiency to obtain an improved effect to improve the productivity of the rolling work.

Claims (4)

In the rolling apparatus in which the backup rolls 200 and the rolling rolls 208 are mounted in the rolling stand 250 to roll the strip 206, The rolling stand 250 is equipped with lubricating oil inflow line 210 and fixing connectors 100 to which a plurality of outlet lines 212 are connected, and the front surface of the fixing box 20 in which the fixing connectors 100 are located. An electromagnet 24 is fixed thereto, and a backup roll choke 202 supporting both ends of the backup roll 200 is connected to an inlet line 210 and a plurality of outlet lines 212 for injecting lubricant therein. The flow connector 120 is mounted on the flow box 38 of magnetic material, and the fixed connector 100 and the flow connector 120 are introduced when the backup roll choke 202 is mounted on the rolling stand 250. The lines 210 and the outlet lines 212 are connected to each other in a coincident manner, and the electromagnet 24 is firmly connected to the flow box 38 by a magnetic force, so that the backup roll choke 202 is connected to the rolling stand 250. Is installed, the lubricant is supplied automatically and backed up from the rolling stand 250 When the choke 202 is taken out, lubrication line connection on the back-up roll, characterized by configured to block the supply of the lubricating oil. According to claim 1, The fixed connector 100 is a plurality of sockets (SOCKET) 28 respectively mounted to the fixed box 20, the floating connector 120 is coupled to correspond to the fixed connector (100) Has a number corresponding to the fixed connector 100, respectively, is mounted to the flow box 38 by the sockets 42, the limit switch 22 is fixed to the upper surface of the electromagnet 24, A plurality of limit bars (36) corresponding to each of the lubrication line connection device of the backup roll, characterized in that fixed to the upper surface of the flow box (38). 3. The fixed connector (100) according to claim 2, wherein the fixed connector (100) has a hexagonal or octagonal outer surface and a threaded nut member (101); The long tubular face is open, has a circular step 103a, the opposite side is blocked, and has a plurality of holes 103b in the same area in the inner flow path to the side, and a protrusion 103c in the center of the blocked back. The formed assembly seal 103 is inserted into the nut member 101; Cylindrical sleeve (SLEEVE) 106 that allows smooth sliding (SLIDING) in the outer periphery of the assembly seal 103 has a circular step (106a) on the front, and is connected to the spring 104 to the assembly seal ( The O-rings 105 are inserted into both ends of the inner side and inserted into the outer side of the assembly seal 103; A cylindrical exterior member 108 is fitted to the outside of the spring 104 and the sleeve 106, the exterior member 108 is a recessed concave-shaped round jaw 108b is processed in the inner center of the sleeve 106 Lubricating line connecting device of the back-up roll, characterized in that the spring (104) is positioned on the inside by being caught in the circular stepped (106a) of the sleeve 106 is fixed so as not to fall out from the nut member (108). The flow connector (120) according to claim 1, wherein the flow connector (120) is machined into a hexagon or an octagon, the inside is threaded, and has a nut member (128) with a connection ring (126) and a spring (125) inserted therein; The front end of the spring 125 is blocked and the groove 124a is dug so that the projection 103c of the assembly seal 103 of the fixing connector 100 can be inserted in the center portion, and the fixing connector 100 A connecting seal 124 having a diameter equal to the diameter of the assembling seal 103 of which the plurality of holes 124b are machined is inserted in the middle; The front is processed into a jaw 122a having the same outer diameter to move in contact with the sleeve 106 of the fixed connector 100, the inside has a groove so that the O-ring 121 can be inserted, the inner jaw A portion of the hollow body 122 which is processed to be inclined like the outer surface of the connecting seal 124 is inserted into the outside of the connecting seal 124 and the spring 125, so that the screw portion at the rear end thereof is connected to the nut 128. Screwed; A fastening ring 123 is fitted to the outer circumferential surface of the hollow body 122, and a circular protrusion 122c is formed in the middle of the outer circumferential surface so that the fastening ring 123 is maintained between the nut member 128. Lubrication line connection device for backup roll.