KR19990008836U - Roll bearing cleaning device - Google Patents

Abstract

The present invention relates to a device for cleaning a bearing supporting a rotatable unit roll of a hot rolling mill, and more specifically, it is possible to greatly reduce the working time by cleaning the bearings on both sides without disassembling the bearing. The present invention relates to a bearing cleaning apparatus of a roll which can reduce the loss of cleaning oil and can measure the outer diameter of the finished roll and the concentricity of the bearing, thereby improving the quality of the roll.

The present invention has a movable V-block mounted on the guide rail mounted on the upper surface of the roll, the fixed V-block on the upper surface of the base away from the movable V-block, and a plurality of stoppers. A moving part provided on the guide rail at regular intervals, and a belt member between a driven pulley fitted to one side of the rotating shaft of the roll and a driving pulley of a driving motor installed on the motor base, and moving from the cover guide of the motor base. Rotating portion with a possible safety cover; and a tension bar of a predetermined length having a tension control pulley in contact with the belt member at the front end, the rear end of the tension bar to the nut member of the fixture to enable forward and backward through the guide hole A tension adjusting part having a screwed male thread member; and a grease injection hole of both bearings. A bearing having a plurality of corresponding nozzles, a supply unit having a quick joint and a valve between the hose having the nozzle and the washing oil pump; and an inspection unit having a dial gauge placed on the base; To provide.

Description

Roll bearing cleaning device

The present invention relates to a device for cleaning a bearing supporting a rotatable unit roll of a hot rolling mill, and more specifically, it is possible to greatly reduce the working time by cleaning the bearings on both sides without disassembling the bearing. The present invention relates to a bearing cleaning apparatus of a roll which can reduce the loss of cleaning oil and can measure the outer diameter of the finished roll and the concentricity of the bearing, thereby improving the quality of the roll.

In general, in a hot rolling mill of a steel mill, as shown in FIG. 1, a plurality of unit rolls (hereinafter, referred to as rolls) 3 supporting the rolled material from below are provided, and both rotation shafts 4 of the rolls 3 are provided. The self-aligning roller bearings 5 (hereinafter referred to as bearings) are respectively supported to enable smooth rotation, and these rolls 3 have uneven surface roughness as they are used for a long time. Since abrasion occurs, the machining of turning and grinding the surface of the roll 3 should be performed periodically. At this time, in addition to machining the roll 3, wear parts and oil seals are replaced with new ones, and the bearing 5 is not disassembled at both rotation shafts 4 before the roll 3 is processed. In the state, grease and foreign substances caught between the inner race and the outer race of the bearing 5 should be cleanly washed as the washing oil injected through the grease injection hole 5a.

Figure 2 shows a working state for washing the bearing according to the prior art, as shown in the prior art, carried out in a pair of two persons in a state in which the roll (not disassembled) the bearing 5 is placed on the support neck 111 In the bearing cleaning operation, a worker supplies the washing oil injected from the supply hose 112 through the grease injection hole 5a at the upper part of the bearing 5, and the washing cylinder 113 at the lower side of the bearing. ) And wash the inside of the bearing (5) and collect the falling oil. In addition, while another operator forcibly rotates the outer race portion rotatable with one hand, unlike the inner race of the bearing 5 press-fitted to the rotating shaft 4 of the roll 3, the brush 114 with the other hand. ) To remove the grease and foreign matter.

However, in the conventional washing operation, since the washing oil injected and dropped from the supply hose 112 is scattered around the workplace during the operation, the surrounding environment of the workplace is contaminated and the inner and outer races of the bearing 5 are contaminated. Since the foreign substances are removed while spraying the washing oil in between, the amount of washing oil is excessively used to increase the maintenance cost, and the worker inevitably inhales the smell of the washing oil, which is toxic and very harmful for health. There was a problem of avoiding the work of cleaning the bearing (5).

Therefore, the present invention has been devised to solve the problems described above, the purpose is to quickly remove grease and foreign matter caught in the bearing of the roll, to prevent the loss of cleaning oil as much as possible to greatly reduce the maintenance cost, After processing, concentricity and outer diameter can be inspected to improve the quality of the roll, to prevent contamination around the workplace, as well as to prevent the worker's safety disaster and the avoidance of the bearing's cleaning work. To provide a device.

1 is a front view showing a typical roll,

2 is a working view showing a washing state of the roll bearing according to the prior art,

Figure 3 is an overall configuration showing a bearing cleaning device of a roll according to the present invention,

Figure 4 is a front view showing a moving part employed in the bearing cleaning device of the roll according to the present invention,

Figure 5 is a block diagram showing a rotating portion and the tension adjustment portion employed in the bearing cleaning device of the roll according to the present invention,

Figure 6 (a) is a side view of the supply unit employed in the bearing cleaning device of the roll according to the present invention,

Figure 6 (b) is a configuration diagram of the supply unit employed in the bearing cleaning device of the roll according to the present invention.

Explanation of symbols for main parts of the drawings

3 ..... Roll 5 ..... Bearing

10 .... Moving part 12 .... Moving V-block

13 .... Fixed V-Block 15a, 15b, 15c .... Stopper

20 .... rotating part 22 .... drive motor

23 .... driven pulley 24 .... driven pulley

25 .... Belt member 30 .... Tension control

31 .... Fixture 32 .... Pulley for tension adjustment

33 .... tension bar 40 .... supply

41 .... Nozzles 43 .... Cleaning Oil Pumps

50 .... Inspection part 51 .... Dial gauge

The present invention to achieve the above object,

An apparatus for washing bearings mounted on both rotating shafts of a roll as washing oil, the apparatus comprising: a movable v-block mounted on the upper rail and movable on a guide rail installed in a longitudinal direction on a base upper surface; A fixed V-block is provided on the upper surface of the base away from the predetermined distance, and a plurality of stoppers are provided on the guide rail at regular intervals to adjust the moving distance of the movable V-block, while a drain valve is provided on the fixed and movable V-block. A moving member having a washing tub each having a variable length in accordance with the length of the roll; and a belt member disposed between a driven pulley fitted to one rotation shaft of the roll and a driving pulley of a driving motor installed on a motor base. Completed setting with safety cover movable from cover guide of base Rotating part for rotating the roll in one direction; and a tension bar of a predetermined length rotatably mounted to the front end of the tension control pulley in contact with the middle of the outer surface of the belt member, the rear end of the tension bar through the guide hole A tension adjusting portion for adjusting the tension of the belt member by having a male screw member screwed to the nut member of the fixing unit; and a plurality of nozzles having one-to-one correspondence with the grease injection holes of both bearings, and having a hose having the nozzle. And a supply unit for injecting the washing oil with a quick joint and a valve between the washing oil pump capable of storing the washing oil; and a dial gauge placed on the base to measure the outer diameter of the roll and the concentricity of the bearing. By providing a bearing cleaning device of the roll, characterized in that it comprises an inspection unit.

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

Figure 3 is an overall configuration showing a bearing cleaning device of the roll according to the present invention, Figure 4 is a front view showing a moving part employed in the bearing cleaning device of the roll according to the present invention, Figure 5 is a roll according to the present invention Figure 6 (a) is a side view of the supply unit employed in the bearing cleaning device of the roll according to the present invention, Figure 6 (a) is the present invention It is a block diagram of the supply unit employed in the bearing cleaning device of the roll.

The bearing cleaning device 1 of the roll according to the present invention, as shown in Figs. 3 to 6, the bearing (5) is mounted state irrespective of the outer diameter, length and size of the bearing (5) of the roll (3) In order to safely and quickly remove the foreign matter stuck in the bearing (5), as well as to measure the concentricity of the bearing (5) and the finished roll (3), such a device (1) 10), the rotating unit 20, the tension control unit 30, the supply unit 40 and the inspection unit 50 is made up.

That is, the moving part 10 which can be variable and fixed to various lengths of the roll 3 having various sizes of bearings 5 is installed side by side with the guide rail 14 in the longitudinal direction on one side. It is installed on one base 11, the movable v-block 12 supporting one side of the rotating shaft of the roll 3 is assembled to be movable on the guide rail 14, the base away from it by a certain distance On (11), a fixed type V-block 13 supporting the other side of the roll 3 to be raised is fixedly installed. In addition, the guide rail 14 has a plurality of stoppers 15a, 15b, and 15c at regular intervals to adjust the moving distance of the movable V-block 12 to the length of the roll 3 to be raised. The fixed and movable V-blocks 12 are installed to collect the washing oil falling to the bottom during the washing operation, and are provided with washing tubs 16 equipped with drain valves 17 on the lower surfaces thereof. At this time, the upper end of each of the stopper (15a), (15b), (15c) is provided with a hinge-operated hinge bar (19) to raise or lower it, the position of the movable V-block (12) to interfere with the roll (3) It can be changed appropriately according to the length.

In addition, the rotating part 20 for rotating the roll 3 on which both ends of the rotary shaft 4 are mounted on the movable and fixed V-blocks 12 and 13 is disposed adjacent to the fixed V-block 13. (11) is installed on the motor base 21 installed on one side, the motor base 21 is provided with a drive motor 22 having a speed control and a drive pulley 23, the drive pulley 23 Is connected to the driven pulley 24 fitted to the right rotating shaft 4 of the roll 3 and the belt member 25 in the drawing, so that the key 4b is connected to the key groove 4a of the rotating shaft 4. ) To drive the rotary shaft 4 of the roll 3 assembled with the driven pulley 24 in one direction by the driving force of the driving motor 22. At this time, the outer race (5b) of the bearing (5) is mounted on the stationary, movable block (12), 13 and stopped, while the inner race (5d) and the ball (5c) is the rotary shaft (4) Rotate in one direction. Then, the safety cover 26 that can cover or expose the drive motor 22 and the belt member 25 as necessary to protect the operator from safety accidents when the roll (3) for the cleaning operation is rotated. To move on the cover guide (27).

In addition, the tension control unit 30 for adjusting the tension of the belt member 25 so that the rotation of the roll 3 is smoothly provided on the fixing table 31 of the motor base 21, the belt The pulley 32 for tension adjustment in contact with the middle portion of the outer surface of the member 25 is rotatably mounted to the tip of the tension bar 33 of a predetermined length that can be moved forward and backward by being fitted into the guide hole 35 of the holder 31. In addition, the rear end of the tension bar 33 is equipped with a male screw member 34 screwed to the nut member 36 of the fixing table 31, the operator lifts the handle 37 of the male screw member 34 By rotating the male screw member 34 in a forward and reverse direction, the tension of the belt member 25 can be properly adjusted by the tension adjusting pulley 32 of the tension bar 33 which is moved forward and backward. .

In addition, the supply unit 40 for injecting the washing oil to remove the foreign matter caught in the bearing 5 includes a plurality of one-to-one correspondences with the grease injection holes 5a of the bearings 5 mounted on both rotation shafts 4. Equipped with a nozzle (41) to supply the washing oil through the hose 42 having the nozzle 41 and a tank for storing a certain amount of the washing oil, between the free movement of the washing oil pump (43) It is equipped with a valve 45 to control the flow of the quick joint 44 and the washing oil so as to easily removable. Accordingly, when the washing oil is put into the tank of the washing oil pump 43 and the air is forcibly injected, the washing oil continues to come out through the nozzle 41 for a predetermined time 25 minutes to 35 minutes.

In addition, the inspection unit 50 for measuring the outer diameter of the finished roll (3) and the concentricity of the bearing (5) after the cleaning operation to measure the machining state of the roll (3) is the movable, fixed V-block 12, The dial gauge 51, which is mounted on (13) and comes in contact with the surface of the roll 3 rotatable in one direction, is provided on the horizontal base 11.

In order to remove foreign matters caught in both bearings 5 of the roll 3 as the washing oil as the bearing cleaning device 1 of the roll having the above-described configuration, first, the roll 3 is fixed and fixed Various kinds of hinge bars 19 of the plurality of stoppers 15a, 15b, and 15c mounted on the guide rail 14 may be properly operated before placing them between the blocks 12 and 13. The position of the movable V-block 12 can be set according to the length of the roll (3). That is, when the movable V-block 12 is controlled by the stopper 15a, three hot rolling rolls can be set, and when controlled by another stopper 15b, a mini mill roll can be set while another If controlled by the stopper (15c) it is possible to set the 1,2 hot rolled rolls.

Subsequently, the driven pulley 24 is fitted with the key groove 4a formed on one side rotation shaft 4 of the roll 3 leaving only the parts which can be processed without disassembly and the key 4b of the driven pulley 24 aligned with each other. The roll 3 is placed between the set movable V-block 12 and the fixed V-block 13, and then the belt member 25 between the drive pulley 23 and the driven pulley 24 of the drive motor 22. ) And the tension bar 33 is rotated forward by turning the handle 37 of the male screw member 34 assembled to the nut member 36 of the holder 31 in the forward direction, and the tension adjusting pulley mounted at the tip thereof. 32 is in close contact with the outer surface of the belt member 25 is pushed to one side to give a tension. When the tensioning of the belt member 25 is completed, the safety cover 26 is closed for the safety of the operator, and the plurality of nozzles 41 freely movable are mounted on both side bearings of the roll 3. 5) Each of the grease injection holes (5a) is set so that washing oil can be injected.

On the other hand, when the valve 45 is opened by injecting air into the washing oil pump 43 in the tank containing the washing oil, the washing oil may be supplied into the grease injection hole 5a through the nozzle 41 for a predetermined time. At the same time, when the driving motor 22 is driven, the rotation shaft 4 of the roll 3 assembled to the driven pulley 24 is rotated in one direction by the rotational force transmitted to the belt member 25 connected to the driving pulley 23. Can be forced to rotate.

In this case, the inner race 5d and the ball 5c constituting the bearing 5 fitted to the outer surface of the rotary shaft 4 of the roll 3 rotate together with the rotary shaft 4, while the outer race 5b is placed on the movable and fixed V-blocks 12 and 13 and is not rotated by the weight of the roll 3, so that the grease injection hole 5a of the outer race 5b is stopped. The washing oil supplied from the nozzle 41 may be supplied into the bearing 5 so as to be able to clean the foreign substances without scattering to the outside as in the prior art. After washing, the washing oil flowing out of the bearing 5 is collected in the washing tub 16, and the collected waste washing oil is collected again in the drum by opening the drain valve 17 of the washing tub 16 and then incinerated. Process.

On the other hand, the roll (3) sealing the bearing (5) after the cleaning operation is moved to another work place to undergo a machining process, such as surface polishing, the roll (3) is finished, the cleaning device (1) ) Is placed between the movable and fixed v-blocks 12 and 13, and the operator visually inspects the outer diameter front part while rotating the roll 3, and the base 11 in the rotation state of the roll 3 The concentricity of the roll (3) and the bearing (5) is measured by bringing the tip of the dial gauge (51) mounted on the upper surface of the c) close to the outer diameter of the roll (3) and the outer circumferential surface of the bearing (5).

As described above, according to the present invention, a roll 3 having a bearing 5 mounted thereon is placed between the movable movable V-block 12 and the fixed fixed V-lock 13, and then grease is injected into the washing oil. By driving the drive motor 22 while supplying it into the hole 5a, the outer race 5b of both bearings 5 stops the inner race 5d and the ball 5c together with the rotation shaft 4 at the same time. Since it can be rotated in one direction, it is possible to significantly shorten the washing time for both bearings 5 without scattering the washing oil. This improves the productivity of washing operations, reduces the loss of cleaning oil, reduces maintenance costs, prevents contamination of surrounding workplaces, prevents safety accidents of workers, and improves the outer diameter of bearings (3) and bearings. Concentricity measurement and external diameter inspection are possible, and the practical effect which can improve the quality of the roll 3 more is acquired.

Claims (1)

In the apparatus for washing the bearing (5) mounted on both sides of the rotary shaft (4) of the roll (3) as washing oil, the roll (3) is raised, the guide rail (10) installed in the longitudinal direction on the upper surface of the base ( 14) a movable V-block 12 mounted to be movable on the base, and having a fixed V-block 13 on an upper surface of the base 11 separated from the movable V-block 12 by a fixed distance. A plurality of stoppers 15a, 15b, and 15c are provided on the guide rail 14 at regular intervals to adjust the moving distance of the 12, while the fixed and movable V-blocks 12 and 13 are provided. Moving parts 10 each having a washing tub 16 having a drain valve 17 therein and being variable to the length of the roll 3; and fitted to one side of the rotation shaft 4 of the roll 3; A belt member 25 is provided between the driven pulley 24 and the drive pulley 23 of the drive motor 22 provided on the motor base 21. A rotating part 20 having a safety cover 26 movable from the cover guide 27 of the motor base 21 to rotate the set roll 3 in one direction; and a middle of an outer surface of the belt member 25. It is provided with a tension bar 33 of a predetermined length rotatably mounted to the front end of the tension control pulley 32 in contact with, the rear end of the tension bar 33 is fixed to enable forward and backward through the guide hole (35) A tension adjusting part 30 having a male screw member 34 screwed to the nut member 36 of the 31 to adjust the tension of the belt member 25; and a grease injection hole of both bearings 5; A quick joint 44 and a valve are provided between the hose 42 having the nozzle 41 and the washing oil pump 43 capable of storing the washing oil. 45 and a supply unit for injecting the washing oil; and a dial gauge 51 placed on the base 11 Bearing inspection apparatus for a roll comprising a; inspection unit (50) for measuring the outer diameter of the roll (3) and the concentricity of the bearing (5) is completed.