KR20030025556A - Apparatus for safe arrival of skin pass mill roll chock - Google Patents

Abstract

PURPOSE: A rolling roll chock checking type safe arrival apparatus is provided to reduce fatigue of operators through accurate safe arrival of rolling roll on rails, and prevent roller damage of the wheel bearing and protect the touch part between the roll chock and rails through checking of liner and wheel bearing. CONSTITUTION: In an apparatus for checking whether roll chock in which bearing for supporting rotation of the roll is installed is abnormal or not while roll injected into rolling mill is being safe arrived and safe arriving wheel bearing of the roll chock on a rail stopper, the rolling roll chock checking type safe arrival apparatus comprises guide board parts which are installed with the rails(7) installed therebetween and sense position of the roll that is transported between the boards to be descended; a wheel bearing inspection part installed between the rails and guide board parts to check whether the roller of the wheel bearing is abnormal or not; a roll safe arrival part that is installed between the rails and safely arrives the roll chock on the rails as the roll safe arrival part is being moved back and forth according to detection results of regular position sensing sensors (S1a to S1d) of the guide board parts; and a control part for controlling operation of the guide board parts, wheel bearing inspection part and roll safe arrival part.

Description

Rolling roll choke check-type seating device {Apparatus for safe arrival of skin pass mill roll chock}

The present invention relates to a rolling roll choke check-type seating device, and more particularly, to an external impact element of a roll choke, which is a box having a bearing for supporting rotation of the roll in seating a roll assembled to a rolling mill on a rail. The present invention relates to a rolled roll chock checking type seating device which checks whether there is an abnormality and protects the load part of the roll choke from the impact that may occur when the large roll is placed on the rail.

In general, as shown in FIGS. 1A and 1B, the rolls 1-1 and 1-2 used for rolling are seated on the rail 7 by precise manipulation at an appropriate position through hand signals between the crane driver and the field operator. At this time, the wheel bearings 4 of the roll chocks 2-1 to 2-4 should be precisely set on the rail stopper 4-5.

At this time, the crane operator is difficult to carry out work because the swing is always caused by the wire rope hanging the rolls (1-1,1-2), and the field operator keeps the waist while the seating operation is in progress, the rail (7) The fatigue should be severe because the work should be monitored while the wheel bearing (4) is seated. In addition, since the hoisting and unwinding operations of the rolls 1-1 and 1-2 are to be repeated until the seat is correctly seated, the roller of the wheel bearing 4 may be damaged due to the collision with the rail 7. high.

If any one of the rollers is damaged, the load is concentrated there, and the rollers are broken in series, and eventually, the wheel bearings 4 cannot be rotated, so that the rolls 1-1 and 1-2 cannot be transported. If this happens in the process of drawing the rolls 1-1, 1-2 into the mill stand (not shown), or drawing out the rolls 1-1 and 1-2, the mill stands will stand. Since the operation of the mill stand is stopped for a long time because it does not move inside, it is very important to inspect the wheel bearing 4 during the mounting work of the rolls 1-1 and 1-2.

However, at present, the operator performs the inspection with the sense of hearing and hand while turning the wheel bearing 4 by hand, and the accuracy of the inspection is inevitably deteriorated, and also the roll (1-1, 1-2) of the roll The damage of the wheel bearings 4 generated during the seating operation cannot be inspected at all, and thus the rolls are stopped and the mill stand must be stopped while the rolls 1-1 and 1-2 are transported to the mill stand. Will occur.

In addition, the liners 3 of the roll chocks 2-1 to 2-4 are very important to control the gap between the rolls 1-1 and 1-2 when the rolls are drawn into the mill stand and during the rolling operation. It is managed with very small error within mm, and after initial assembly, it is easy to cause abrasion or deformation due to bad conditions such as high temperature, impact, high pressure water, dust, etc. of mill stand. As it is necessary to check with a pair or a pair of two people, very difficult and precise work is almost impossible, so most workers avoid the inspection, which makes precise control difficult.

Therefore, it is the best management method to accurately judge the gap and abnormality of the liner just before the rolls 1-1 and 1-2 are drawn in, but in the state where the upper and lower rolls 1-1 and 1-2 are set, Due to the rolls 1-1 and 1-2 and related parts, there is a problem in that the gap measurement using the measuring device is not performed at all.

The present invention has been made in order to solve the above problems of the prior art, to reduce the fatigue of the operator through the precise mounting work on the rail of the rolling roll, the roller damage of the wheel bearing through the inspection work of the liner and wheel bearing It is an object of the present invention to provide a rolled roll choke check-type seating device capable of preventing and protecting the contact portion of the roll choke with a rail.

Figure 1a is a schematic diagram showing a working method of seating a conventional roll roll on the rail.

1B is a front view of the A direction of FIG. 1A;

Figure 2 is a perspective view showing a rolling roll choke check-type seating apparatus according to the present invention.

3 is an exploded perspective view showing the configuration of a guide board in the rolled roll choke check-type seating apparatus shown in FIG.

FIG. 4A is an exploded perspective view showing the structure of a wheel bearing inspection unit in the rolling roll choke inspection type seating apparatus shown in FIG. 2; FIG.

Figure 4b is a cross-sectional view showing the assembled state of the wheel bearing inspection portion shown in Figure 4a.

FIG. 5 is an exploded perspective view showing the configuration of a roll seating portion in the rolled roll choke check-type mounting apparatus shown in FIG. 2; FIG.

Figure 6 is a cross-sectional view showing a rolling roll seating method using a rolling roll choke check type mounting apparatus according to the present invention.

7a and 7b is a cross-sectional view showing a wheel bearing inspection method using a rolling roll choke check-type seating apparatus according to the present invention.

<Explanation of symbols for main parts of drawing>

1-1,1-2: Roll choke 2-1 ~ 2-4: Roll choke

4: wheel bearing 7: rail

8-1: Board 8-2,9-12: Cylinder

8-7: Scraper 9-8: Driving Roller

9-10: Rotating Roller 10-4: Multistage Cylinder

10-6: double acting cylinder 10-7: side stopper

Rolling roll choke check type seating apparatus according to the present invention for realizing the above problem is to check the abnormality of the roll choke built-in bearing supporting the rotation of the roll in the process of seating the rolling mill loading roll on the rail An apparatus for seating a wheel bearing of a roll choke on a rail stopper, the apparatus comprising: a guide board unit configured to detect a position of the roll which is installed between the rails and is transported between boards and descends; A wheel bearing inspection unit installed between the rail and the guide board to check an abnormality of the roller of the wheel bearing; A roll seating part installed between the rails and seating the roll chocks on the rails while moving forward or backward according to the detection result of the position sensor of the guide board; And a control unit for controlling the operation of the guide board unit, the wheel bearing inspection unit, and the roll seating unit. Characterized in that comprises a.

In the present invention, the guide board portion is provided with a plurality of lamps and siren on the upper surface of the board, the cylinder is installed on the bottom surface, the position detection sensor installed on the top of one side of the board, the lower limit position installed below the position detection sensor A sensing sensor, a scraper provided at the bottom of the both sensors, a laser sensor at the distal end, a measuring block provided at the lower part of the scraper, and a paper feeder formed at the lower part of the measuring block and formed with a plurality of nozzle holes along the length direction. A block, a grease line connected to the feed block, a screw mounted to the rear end of the scraper, the measurement block and the feed block through a transfer block, a bevel gear box connected to the transfer block, and a drive connected to the bevel gear box. It characterized in that it comprises a motor.

In addition, the wheel bearing inspection unit in the present invention, the fixed arm, the rotary arm is inserted into the protrusion of the fixed arm, the upper side of one side is formed with a rectangular box and the rotary bar is assembled to one side of the rotary arm, and the rotation A gear assembled to a central portion of the upper surface of the arm, a driving motor for operating the gear, a driving roller driven by a motor at one side of the inside of the loading box, a rotating roller rotating in engagement with the driving roller at the other side of the loading box, and And a vibration sensor installed between the rollers, a cylinder assembled to one side of the bottom surface of the rotating bar, and a fixed block connected to the cylinder.

In addition, in the present invention, the roll seat is connected to the base, one end of the screw is connected to the base and the other end is connected to the drive motor, the multi-stage cylinder built in a predetermined depth in the base, and connected to the upper end of the multi-stage cylinder A fixed block, a double-acting cylinder installed through the fixed block, side stoppers attached to both left and right ends of the double-acting cylinder, and a plurality of roll choke position sensing sensors provided on both upper left and right sides of the side stopper. Characterized in that.

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

2 to 7b is a view showing an embodiment of the rolling roll choke check-type seating apparatus of the present invention, the seating apparatus according to the present invention guide board portion for sensing the position of the roll to descend greatly; Wheel bearing inspection unit for checking the abnormality of the roller of the wheel bearing; A roll seat for seating the roll chocks on the rails; And a control unit for controlling the operation of the component; Consists of

As illustrated in FIGS. 2 and 3, the guide boards are installed in pairs left and right with the rails 7 interposed therebetween, and three lamps (3) on the upper surface of the board 8-1 having a hexahedron shape. L1, L2, L3 and one siren 8-13 are fixedly installed and connected to the lamps L1, L2, L3 and siren 8-13 on one side upper end of the board 8-1. And the position detection sensor (S1a, S1b; S1c, S1d) for operating this is installed, the lower limit position sensor (S2a, S2b; S2c, S2d) is installed below the position detection sensor.

In addition, the lower portion of the sensor (S1a ~ S2d) is formed with three portions of the rectangular through-spaced at equal intervals, the scraper (8-7), measuring block (8-8), feeding block (8-8) on one side of the through portion -10) are respectively mounted, the scraper (8-7) has a 'b' shape from the side, the laser sensor (8-9) is fixed to the front end of the measuring block (8-8) The feed block 8-10 has a plurality of nozzle holes formed in a longitudinal direction thereof, and a grease line 8-12 having an electron valve 8-11 installed at a distal end thereof is connected to the one nozzle hole. It is done.

In addition, three screws (8-6) on the other side of the penetrating portion penetrates the transfer block (8-5) so that the scraper (8-7), the measuring block (8-8) and the feeding block (8-10) Mounted at the rear end, the transfer block 8-5 is connected to one end of the bevel gear box 8-4, and the drive motor 8-3 at the other end of the bevel gear box 8-4. Is connected, and a cylinder 8-2 is installed on the bottom of the board 8-1.

As shown in FIGS. 2 and 4a and 4b, the wheel bearing inspection unit is provided between the rail 7 and the guide board unit, and a pair of rotary arms 9 is provided at the protrusion of the fixed arm 9-1. -2) is inserted, the rotating bar (9-3) is fixedly assembled on one side of the rotary arm, two gears (9-4, 9-5) in the center of the upper surface of the rotary arm (9-2) It is assembled to engage with each other, the drive motor (9-6) is assembled on top of the gear (9-4, 9-5).

In addition, a rectangular box (9-7) is formed on one side of the upper surface of the rotary bar (9-3), the drive roller (9-8) is a motor (9-9) on one side of the inside of the box (9-7). ) Is built as an assembled state, the inner side of the loading box (9-7) has a built-in rotary roller (9-10) to rotate in engagement with the drive roller (9-8).

In addition, the vibration sensor (9-11) is fixedly installed between the rollers (9-8, 9-10), the fixed block (9-13) is connected to one side of the bottom surface of the rotary bar (9-3) The cylinders 9-12 are assembled.

As shown in FIGS. 2, 5, and 6, the roll seating unit is installed between the rails 7 before and after the pair, and the base 10-1 having a hexahedron shape faces the inner surface of the line. The screw 10-2, which is embedded at a predetermined depth and has a thread formed on the outer circumference of the tip portion, is connected to pass through the lower portion of the base 10-1, and the driving motor 10- is connected to the other end of the screw 10-2. 3) is connected.

In addition, a pair of multi-stage cylinders 10-4 are embedded at a predetermined depth from an upper surface of the base 10-1 toward an inner surface thereof, and a fixed block 10 having a rectangular shape is formed at an upper end of the multi-stage cylinders 10-4. -5) is connected, the double-acting cylinder (10-6) is installed to penetrate the fixing block (10-5) in the transverse direction.

In addition, a pair of side stoppers 10-7 fixed to the left and right ends of the double-acting cylinder 10-6 supporting the lower end of the above-described liner 3 as a 'b' shaped cross section viewed from the side. Roll choke position detection sensors S3 (S3a, S3b, S3c, and S3d) are fixedly installed at both upper left and right sides of the side stopper 10-7.

On the other hand, as shown in Figure 2, the detection sensor 11 for detecting the work completion is installed in the center of the seating groove (7-1) of the rail (7), the operation of the above-described various sensors and motors and cylinders A control panel 12 to control and a grease and hydraulic supply device 13 are installed on one side of the line.

Referring to the operation of the rolling roll choke check type seating apparatus according to the present embodiment configured as described above are as follows.

When the roll used for rolling is to be seated on the rail at an appropriate position, the roll 1 is transported between the boards 8-1 through the overhead crane and the crane shown in FIG. 6 and the operation panel 12 is moved. By operating the cylinder (8-2) through the four boards (8-1) at the same time, the roll (1) is lowered between the board (8-1) to reach the position sensor (S1) The lamp L1 lights up.

At this time, if the roll 1 is biased toward the roll buggy (roll buggy) 5 shown in Figure 1a, only the position sensor S1a, S1c is detected, if the roll 1 is biased toward the mill stand side, the position sensor is Only S1b and S1d are detected, and when the wheel bearing 4 is in line with the seating groove 7-1 of the rail 7, the position sensor S1a to S1d are simultaneously detected.

The roll seat automatically determines forward or backward according to the detection result of the position sensor, and when the driving motor 10-3 is operated through the operation panel 12, the screw 10-2 rotates. While the base is in progress, waiting for the detection of the entire position sensor (S1a ~ S1d) and stops the progress immediately after the detection is completed and performs the next operation.

When the crane driver accidentally lowers the roll 1 in the above process, the lower position detection sensors S2a to S2d are detected, and the lamp L2 is turned on while the siren 8-13 rings. At this time, the roll 1 is raised to perform the redetection of the exact position detecting sensors S1a to S1d.

Subsequently, when the multi-stage cylinder 10-4 is operated, the roll seating portion rises, and the side stopper 10-7 enters the lower portion of the roll choke 2, wherein the position detecting sensors S3a to S3d When the roll choke 2 is detected, the roll seat is moved forwards or backwards finely so that the rising stops and all the position sensing sensors are detected at the same time.

When all of the position detecting sensors S3a to S3d are detected, the roll seat is raised, and then the double acting cylinder 10-6 is advanced, and both side stoppers 10-7 are unfolded at the same time and the roll chocks 2 are opened. It will be seated on the roll seat.

At this time, even if the center of the roll 1 is shifted from the center of the rail 7, the roll 1 hanging on the wire rope according to the progress of the side stopper 10-7 is moved by the side stopper 10-7. It is seated in the center of the roll seat by force.

When the settlement of the roll 1 is completed as described above, when the roll seat is moved forward or backward so that the exact position sensors S1a to S1d are detected at the same time, the roll 1 is accurately positioned above the seating point. Then, remove the wire rope and slowly lower the roll seat 10.

In addition, the measuring block (8-8) while advancing the screw (8-6) connected to the moving block (8-5) during the lowering operation to remove foreign matters on both sides of the liner (3) with a scraper (8-7). Laser sensor (8-9) measures the distance from the wheel bearing (4), and grease supplied via the grease line (8-12) is passed through the nozzle hole of the feed block (8-10). Clean grease can be supplied to the liner 3.

At this time, if the distance between the liner 3 is out of the prescribed value, the roll seating part is raised again to lift the roll 1 to carry out the maintenance work of the liner 3, and if there is no abnormality, it continues to descend to the top of the wheel bearing inspection part. Done.

When the roll 1 is positioned above the wheel bearing inspection unit as described above, the driving arm 9-6 is operated to rotate the rotary arm 9-2 by the gears 9-4 and 9-5. When the cylinder 9-12 is advanced, the fixing block 9-13 pushes and supports the ground.

In addition, when the wheel bearing 4 is seated between the driving roller 9-8 and the rotating roller 9-10 of the wheel bearing inspection part by lowering the roll seating portion as shown in FIGS. 7A and 7B, the vibration sensor 9- 11 contacts the wheel bearing 4, and when the motor 9-9 is driven, the driving roller 9-8 rotates and the rotating roller 9-10 also rotates, and accordingly the wheel bearing 4 While rotating, the roller bearing of the wheel bearing can be checked for abnormalities, and if there is no abnormality, the work is continued. If the wheel bearing 4 is abnormal, the roll 1 is lifted to perform maintenance work of the wheel bearing. Perform.

When the inspection work of the wheel bearings is completed as described above, the roll seat is lowered to the rails 7, and the wheel bearings 4 aligned by the exact position sensors S1a to S1d are positioned at the rails 7. It is correctly seated in the seating recess 7-1, and the work is completed while the wheel bearing 4 is detected by the work completion sensor 11.

Rolling roll choke check type seating apparatus of the present invention as described above can be seated as the wheel bearing of the roll choke is mechanically precisely set on the rail stopper of the rail in the process of seating the roll used for rolling on the rail Therefore, there is an effect of reducing the fatigue of the operator and reducing the roller breakage of the wheel bearing.

In addition, by checking in advance whether there is an abnormality between the liner and the wheel bearing of the roll choke during the seating operation of the roll, the work load of the operator is reduced, and in particular, the impact of the roll chocks with the rail of the roll choke may be reduced. There is an effect that can protect the contact.

Claims (4)

An apparatus for checking the abnormality of the roll chocks incorporating the bearing for supporting the rotation of the roll in the process of seating the roll for loading the rolling mill on the rail, and the wheel bearing of the roll choke to be seated on the rail stopper, A guide board unit installed between the rails and detecting a position of the roll which is moved between boards and descends; A wheel bearing inspection unit installed between the rail and the guide board to check an abnormality of the roller of the wheel bearing; A roll seating part installed between the rails and seating the roll chocks on the rails while moving forward or backward according to the detection result of the position sensor of the guide board; And a control unit for controlling the operation of the guide board unit, the wheel bearing inspection unit, and the roll seating unit. Rolling roll choke check-type seating device characterized in that comprising a. The method of claim 1, The guide board unit has a plurality of lamps and siren is installed on the upper surface and the cylinder is installed on the bottom surface, the position sensor installed on the top of one side of the board, the lower limit position sensor installed under the position sensor, A scraper provided at the lower part of the both sensors, a measuring block having a laser sensor at the tip end thereof, a measuring block installed at the lower part of the scraper, a feeding block provided at the lower part of the measuring block and formed with a plurality of nozzle holes along a length direction; A grease line connected to the feed block, a screw mounted to the rear end of the scraper, the measurement block and the feed block through a transfer block, a bevel gear box connected to the transfer block, and a drive motor connected to the bevel gear box. Rolling roll choke check-type mounting device, characterized in that. The method of claim 1, The wheel bearing inspection unit has a fixed arm, a rotary arm inserted into the protrusion of the fixed arm, a square box on one side of the upper surface is formed with a rotary bar assembled to one side of the rotary arm, and the central portion of the upper surface of the rotary arm A gear to be assembled, a driving motor for operating the gear, a driving roller driven by a motor at one side of the loading box, a rotating roller rotating in engagement with the driving roller at the other side of the loading box, and installed between the two rollers Rolling roll choke check type seating apparatus comprising a vibration sensor, a cylinder assembled to one side of the bottom of the rotary bar, and a fixed block connected to the cylinder. The method of claim 1, The roll seating part has a base, one end of which is connected through the base and a drive motor is connected to the other end, a multi-stage cylinder built in a predetermined depth in the base, a fixed block connected to the upper end of the multi-stage cylinder, A double-acting cylinder installed through the fixed block, side stoppers attached to both left and right ends of the double-acting cylinder, and a plurality of roll choke position sensing sensors provided on both upper left and right sides of the side stopper. Rolled roll choke check seating device.