CN107350287B - Working roll side supporting device of eighteen-high rolling mill - Google Patents
Working roll side supporting device of eighteen-high rolling mill Download PDFInfo
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- CN107350287B CN107350287B CN201710602493.XA CN201710602493A CN107350287B CN 107350287 B CN107350287 B CN 107350287B CN 201710602493 A CN201710602493 A CN 201710602493A CN 107350287 B CN107350287 B CN 107350287B
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- 238000005096 rolling process Methods 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000013000 roll bending Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/16—Adjusting or positioning rolls
- B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
- B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/16—Adjusting or positioning rolls
- B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
- B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
- B21B31/30—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by wedges or their equivalent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B33/00—Safety devices not otherwise provided for; Breaker blocks; Devices for freeing jammed rolls for handling cobbles; Overload safety devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/06—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention relates to a work roll side supporting device of a eighty-eight rolling mill, which is symmetrically arranged on the inlet side and the outlet side of the rolling mill about the center of the rolling mill; each working roller is supported by one side supporting roller at the outlet side and one side supporting roller at the inlet side, and each side supporting roller and the connected power end form each side supporting branch together; in each side support branch, each side support roller is connected with two groups of backing components through side support bearing seats; the second inclined wedge is arranged outside the first inclined wedge in parallel, is arranged opposite to the upper inclined surface and the lower inclined surface of the first inclined wedge, is contacted and pressed in a rolling state, and is connected with the second driving device; the first driving device, the second driving device and the guide rail are all fixed on the frame. Compared with the prior device, the invention has reasonable layout, simple structure, stability, reliability, simple and convenient operation, wider roller diameter range of the working roller, effectively expands the product range and enhances the adaptability of the rolling mill.
Description
Technical Field
The invention belongs to the field of metallurgical equipment, and particularly relates to a working roll side supporting device for a eighty-eight rolling mill.
Background
With the high-speed development of the industry in China, the production of the metal plate strip is developed to high strength, low thickness, high precision, high speed and high yield. The multi-roller mill is continuously developed and perfected in recent years by the characteristics of small working roller diameter, large mill rigidity, small volume, light weight and the like, wherein the eighteen-roller mill is an important model for producing cold-rolled continuous strip steel. The eighty-eight rolling mill has the core technology that four groups of working roll side supporting devices are additionally arranged on the basis of a traditional six-roll rolling mill, and the working rolls are guaranteed to have the capacity of resisting horizontal deflection. The work roll side support housing assembly (including the housing, side support roll and backing bearing assembly, or side support roll and backing roll assembly) and side support adjustment mechanism are commonly referred to as a work roll side support device.
The working roll side supporting devices of the eighteen-roller rolling mill in the market at present are mainly divided into three types. The first is represented by a traditional Sendzimir Z-High mill (DE 3324562C2, WO2004/052568A 1), wherein a work roll side support bearing seat assembly is fixed on a middle roll bearing seat through a hinge shaft, and a hydraulic cylinder pushes a side support roll to abut against the work roll for rolling; the second type is represented by Siemens Olympic X-High mill (PCT/EP 2010/054449), the working roll side supporting bearing seat component is fixed on the middle roll bending block through a hinge shaft, and the side supporting roll is pushed by a hydraulic cylinder to abut against the working roll for rolling; the third type, shown in FIG. 3, is represented by the Andriz S6-High mill (PCT/EP 00/07431), and the work roll side supporting chock assembly is driven by a hydraulic cylinder fixed obliquely to the stand, and rolls against the work rolls. Because the first and second working roll side supporting bearing seat components have small distance from the strip steel and need to swing around the hinge point, the defects of the first and second working roll side supporting bearing seat components are that the opening degree of a rolling mill is small, the lubricating and cooling effects are poor, the outer diameter of a backing bearing is small, the speed is low, and the diameter range of the working roll is small; the third disadvantage is that the side support structure is bulky, the space around the working roll is small, the rolling temperature rise is large, and the horizontal movement operation of the working roll cannot be performed. In the aspects of overhauling and maintenance, the first rolling mill needs to integrally replace the middle roller and the side support bearing seat assembly no matter the middle roller or any backing bearing is replaced, and also needs to perform complicated disassembly and installation work under the online condition, thereby consuming time and labor; the third rolling mill has the advantages that the space occupied by the side supporting structure is large, the upper and lower working rolls, the upper and lower middle rolls are required to be moved out of the rolling mill, the back lining bearing can be replaced, the process is complex, time is consumed, and the production efficiency is affected.
Technical proposal
Aiming at the technical defects, the invention provides the eighteen-roller working roller side supporting device which is compact and reasonable, wide in working roller diameter range and convenient and quick to maintain, has long service life and can reduce labor cost and maintenance risk.
The technical scheme adopted for solving the technical problems is as follows:
the working roll side supporting device of the eighty-eight rolling mill is symmetrically arranged on the inlet side and the outlet side of the rolling mill about the center of the rolling mill; the method is characterized in that: each working roll is supported by one side supporting roll on the outlet side and one side supporting roll on the inlet side, each side supporting roll and the connected power end form each side supporting branch together, and four side supporting branches are symmetrically arranged about the center of the rolling mill; in each side support branch, each side support roller is connected with two groups of backing components through side support bearing blocks, and the side support bearing blocks are connected with the side support beams; the first inclined wedge is fixed on the side supporting beam and positioned at the outer side of the side supporting beam, the second inclined wedge is arranged at the outer side of the first inclined wedge in parallel along the vertical direction, is arranged opposite to the upper inclined surface and the lower inclined surface of the first inclined wedge, is contacted and pressed in a rolling state, and is connected with the second driving device; the first driving device, the second driving device and the guide rail are all fixed on the frame; the guide rail comprises a side support beam guide rail and a wedge guide rail, wherein the side support beam is supported on the side support beam guide rail and can slide back and forth along the side support beam guide rail, and the outer side of the second wedge is matched with the wedge guide rail and can slide back and forth along the wedge guide rail.
Further, the first driving device is provided with a moving sensor and a pressure measuring head and is used for controlling the advancing and retreating positions of the side supporting beams; the second driving device is provided with a load cell, so that the second inclined wedge and the first inclined wedge are ensured to be pressed tightly, the additional force of the side supporting beam is not excessively increased, and the side supporting instability is avoided.
Further, the first driving device comprises a hydraulic motor and a jack connected with the hydraulic motor, the head of the jack is provided with a pressure measuring head, the side face of the jack is provided with a position sensor, the hydraulic motor drives the jack, the position accuracy of the side supporting roller can be guaranteed, the horizontal force can be measured, and once the horizontal force exceeds the design range, an alarm is sent out immediately.
Further, when the respective bevel angles of the first wedge and the second wedge are designed to be self-locking angles, the second driving device does not bear horizontal force.
Further, an emulsion spraying device is installed inside the side support beam.
Further, the side support bearing seat is connected with the side support beam through a clamping groove.
Further, the rolling preparation steps of the work roll side supporting device of the eighteen-roll rolling mill are as follows:
after the threading is finished, the supporting rollers at the inlet side and the outlet side slide along the guide rail fixed on the frame and are close to the working roller under the action of the first driving device with the displacement sensor and the pressure measuring head, whether the display values of the displacement sensor and the pressure measuring head reach preset in-place values is checked, and if the supporting rollers at the two sides are in place, the next step of work can be carried out;
at the moment, the horizontal movement distance of the working roller is adjusted according to the preset setting, and the supporting rollers at the two sides of the working roller move by the same distance, so that the working roller is ensured to be moved to the preset position; the working roller is clamped in advance and then is horizontally moved, so that the stability of the working roller in the horizontal movement process is ensured; ensuring that the operation is finished, and performing the next step of work after checking without errors;
then, the second driving device works, the second inclined wedge is controlled to be close to the first inclined wedge, whether the display numerical value of the pressure measuring head reaches a preset in-place value or not is checked, and the rolling mill can be started to start rolling after the pressure measuring head is in place.
Further, the maintenance and roll replacement steps of the working roll side supporting device of the eighteen-roll rolling mill are as follows:
during maintenance, rolling is stopped firstly, then a second driving device is started, a second wedge is retracted, then a first driving device is started, a side support bearing seat is retracted to the outside of the roll changing range of a rolling mill working roll and a middle roll in the movable boundary of a stand, a roll changing trolley clamps the side support bearing seat assembly comprising the side support roll and a backing assembly and pulls out of the stand, a new side support bearing seat assembly is installed again, the above operation is performed reversely, and replacement of the side support roll, the backing assembly and the like is completed, so that the replacement process is time-saving and labor-saving.
Compared with the prior art, the invention has the beneficial effects that:
1. compared with the existing eighteen-roller working roller side supporting device, the working roller side supporting device has reasonable layout, simple structure, stable and reliable side support and simple and convenient operation, and has wider application range of the roller diameter of the working roller, effectively expands the range of producible products and enhances the adaptability of the rolling mill;
2. the driving side supporting device horizontally moves in the guide rail, so that the roller changing space is widened, the independent replacement of the side supporting roller and the backing component becomes feasible, the roller changing work efficiency is improved, the complicated and tedious disassembly and assembly work under the line when the Z-HIGH type eighteen roller mill changes rollers is avoided, and the troublesome operation that the working roller and the middle roller need to be pulled out of the frame when the S6-HIGH type eighteen roller mill changes the side supporting (the backing bearing, the side supporting roller and the like) is also omitted.
3. The first driving device is provided with the horizontal force load cell, so that the horizontal stress condition of the working roller during rolling can be accurately measured, the horizontal force overrun alarm is set, the equipment safety is effectively protected, and accidents caused by accidental horizontal force overrun are avoided.
4. The horizontal movement operation of the working roller can be flexibly participated, the horizontal deflection of the working roller is reduced, and the surface quality of a rolled finished product is effectively improved;
5. the product has good prospect when applied to a eighty-eight-roller mill, and can also be applied to a six-roller mill transformation project.
Drawings
FIG. 1 is a prior art Z-High mill window diagram;
FIG. 2 is a prior art X-a High mill window map;
FIG. 3 is a prior art S6-High mill window diagram;
FIG. 4 is a schematic view of a work roll side support apparatus of a eighteen roll mill of the present invention;
FIG. 5 is a schematic view of a window for replacing an intermediate roll and a work roll in accordance with the present invention;
FIG. 6 is a schematic view of a window of the replacement side support housing assembly of the present invention.
In the figure: 1-guide rail, 1-wedge guide rail, 1-2-side support beam guide rail, 2-working roll side support roller, 3-backing component, 4-side support bearing seat, 5-side support beam, 6-first driving device, 7-first wedge, 8-second wedge, 9-second driving device, 10-upper middle roller, 11-upper working roller, 12-lower working roller, 13-lower middle roller, 14-frame, 15-band steel.
Detailed Description
The work roll side supporting means of the eighteen rolling mill according to the embodiment of the present invention, as shown in fig. 4 to 6, are symmetrically disposed (left and right in fig. 4) on the inlet side and the outlet side with respect to the center of the stand (center line position in fig. 4 to 6) for supporting the upper work roll 11 and the lower work roll 12; the method is characterized in that: on both the inlet side and the outlet side (i.e. front and rear) there are a guide rail 1, a work roll side support roll 2, a backing assembly 3, side support bearing blocks 4, side support beams 5, a first drive 6, a first wedge 7, a second wedge 8 and a second drive 9; each work roll is supported by two work roll side support rolls 2 from the front and rear, respectively.
The guide rail 1 comprises a wedge guide rail 1-1 and a side support beam guide rail 1-2, which are both fixed on the inner side (the upper side or the lower side in the vertical direction is the outer side, the middle is the inner side) of a frame 14, and a working roller side support roller 2 and two groups of backing components 3 are connected together through a side support bearing seat 4, the side support bearing seat 4 is connected with a side support beam 5 through a clamping groove, a first wedge 7 is fixed on the side support beam 5 and slides along the front and rear direction along with the side support beam 5, and the side support bearing seat 4 and the side support beam 5 can slide along the side support beam guide rail 1-2 back and forth and control the advancing and retreating positions of the side support roller and the side support beam through a first driving device 6 with a displacement sensor and a pressure measuring head. In the vertical direction, outside (above or below) the first wedge 7, the second wedge 8 is arranged in parallel up and down with the first wedge 7 and has an inclined surface opposite to the inclined surface, and the second wedge 8 can be controlled by a second driving device 9 with a pressure measuring head to slide back and forth along the wedge guide rail 1-1. The first drive 6 and the second drive 9 are both fixed to the frame 14. The inclined surfaces of the first inclined wedge 7 and the second inclined wedge 8 are matched to lock and limit in the horizontal direction.
During rolling, the side support beam 5 presses the side support beam guide rail 1-2 in the vertical direction, and the second wedge 8 presses the wedge guide rail 1-1 in the vertical direction, thereby eliminating the gap between moving members. Both horizontal and vertical forces of the upper work roll 11 and the lower work roll 12 are transferred to the side support beam 5 through the work roll side support roll 2, the backing assembly 3, the side support bearing housing 4. Wherein a part of the horizontal force is balanced by a first drive means 6 with displacement sensor and pressure head: the hydraulic motor 6-1 drives the jack 6-2, the head of the jack 6-2 is provided with a pressure measuring head, the side surface of the jack 6-2 is provided with a position sensor, the position accuracy of the side supporting roller 2 can be ensured, the horizontal force can be measured, and once the horizontal force exceeds the design range, an alarm is immediately sent out, so that the equipment is effectively protected; the other part of the horizontal force is balanced by a second drive means 9 with a pressure head. The vertical force is transferred from the first wedge 7 upwards through the second wedge 8 to the frame 14, balanced by the frame 14.
Further, the respective inclined planes of the first inclined wedge 7 and the second inclined wedge 8 can be designed to be self-locking angles (such as about 4 degrees), at this time, after the inclined planes of the first inclined wedge 7 and the second inclined wedge 8 are matched up and down to be locked and limited, the two inclined planes cannot be staggered in a sliding manner under the condition of no external force, so that the second driving device 9 is not subjected to horizontal force when the respective inclined planes of the first inclined wedge 7 and the second inclined wedge 8 are designed to be self-locking angles.
The emulsion spraying device is arranged in the side supporting beam 5, so that the temperature of the strip steel can be effectively reduced, and good rolling lubrication conditions can be provided.
In the embodiment of the invention, as shown in fig. 4, after the threading is finished, the upper and lower working roll side supporting bearing seats 4, the side supporting rolls 2, the backing component 3 and the like on the inlet side and the outlet side respectively slide along the side supporting beam guide rail 1-2 fixed on the frame under the action of the first driving device 6 with a displacement sensor and a pressure measuring head, the working roll side supporting rolls 2 are close to the upper working roll 11 and the lower working roll 12, whether the display values of the displacement sensor and the pressure measuring head reach preset values or not is checked, and if the side supporting bearing seats on both sides are in place (namely, the working roll side supporting rolls 2 on both sides clamp the working rolls and have a certain pre-pressure), the next working can be carried out.
At this time, if it is necessary to adjust the horizontal moving distance of the upper work roll 11 and the lower work roll 12 by a predetermined setting, the side support beams 5 on both sides of the work roll are advanced and retracted one by one, and the moving distances of the entrance side and the exit side are the same, ensuring that the upper work roll 11 and the lower work roll 12 are moved to the predetermined setting. The working roller is clamped in advance and then is horizontally moved, so that the stability of the working roller in the horizontal movement process is ensured. (the work roll has bearing supports at only two ends, and the roll body has no other bearing supports and no driving device, and the work roll needs to be stably clamped by the middle roll and the work roll side supporting roll 2.) to ensure that the operation is finished, and the next work can be performed after the inspection is correct.
Then, the second driving device 9 works, the second inclined wedge 8 is controlled to be close to the first inclined wedge 7, whether the display numerical value of the pressure measuring head of the second driving device 9 reaches a preset in-place value or not is checked, and the rolling mill can be started to start rolling after the display numerical value reaches the preset in-place value.
When the intermediate roll and the work roll are replaced, rolling is stopped first, and one embodiment is shown in fig. 5. Starting the second driving device 9, retracting the second wedge 8, starting the first driving device 6, firstly enabling the upper working roll 11 and the lower working roll 12 to return to the rolling center position (namely, the center line position of fig. 5, namely, the middle roll and the working roll are positioned on a vertical straight line perpendicular to a rolling line) under the pushing of the side supporting beam 5, and then controlling the first driving device 6 to retract the side supporting bearing seat 4 to an area outside the movable boundary (marked by a rectangular frame in fig. 5) of the stand, wherein the area is also outside the roll changing range of the working roll and the middle roll of the rolling mill, namely, outside the boundary between the working roll body and the middle roll bearing seat; the upper work roll 11 and the lower work roll 12 are then held by the work roll lifting device and moved to their roll changing positions (as shown in fig. 5), and the upper intermediate roll 10 and the lower intermediate roll 13 are brought to intermediate roll changing positions (as shown in fig. 5) by the intermediate roll bending cylinders. And then the middle roller and the working roller are replaced by the roller replacing trolley, so that the replacement process is time-saving and labor-saving.
When the side backup roll or backing assembly is replaced, rolling is stopped first, one embodiment of which is shown in fig. 6. The second driving device 9 is started, the second wedge 8 is retracted, the first driving device 6 is started, the upper working roll 11 and the lower working roll 12 are firstly driven by the side supporting beams 5 to return to the rolling center position, then the first driving device 6 is controlled, the side supporting bearing seat 4 is retracted to a region (shown as a rectangular frame in fig. 6) in the boundary of a movable window of the stand, the region is also out of the roll changing range of the working roll and the middle roll of the rolling mill, then the working roll lifting device is used for supporting the upper working roll 11 and the lower working roll 12 and moving to the roll changing position, and the upper middle roll 10 and the lower middle roll 13 reach the middle roll changing position under the action of a middle roll bending cylinder. The roll changing trolley clamps the side support bearing seat 4 (comprising the side support roll 2, the backing component 3 and the like) and drags the roll changing trolley from the frame, a new side support bearing seat 4 (comprising the side support roll 2, the backing component 3 and the like) is installed again, and the replacement of the side support roll and the backing component is completed by reversing the operation.
In the embodiment of the invention, the first driving device 6 can be replaced by a hydraulic cylinder, etc., the second driving device 9 can be replaced by an electric push rod, a cylinder, etc., and the backing assembly can be composed of a backing bearing or a backing roller.
The side support device is driven to horizontally move in the guide rail, so that the roll changing space is widened, the side support roll, the back lining bearing assembly and the like can be independently replaced, and the roll changing working efficiency is improved;
during rolling, the side support beams and the second inclined wedges respectively press the guide rail in the vertical direction, so that the side support is stable and reliable.
The first driving device is provided with a horizontal force load cell, so that the horizontal stress condition of the working roller during rolling can be accurately measured, and a horizontal force overrun alarm is set, thereby effectively protecting the safety of equipment and avoiding accidents caused by accidental horizontal force overrun;
the second driving device is provided with a load cell, so that the inclined plane is ensured to be pressed, the additional force of the side supporting beam is not excessively increased, and the instability of the side supporting beam is avoided;
the inclined surface angles of the first inclined wedge and the second inclined wedge can be designed to be self-locking angles, and the second driving device can not bear horizontal force.
The horizontal movement operation of the working roller can be flexibly participated, the horizontal deflection of the working roller is reduced, and the surface quality of a rolled finished product is effectively improved.
The invention has the advantages of simple structure, accurate control, time and labor saving, stability and reliability. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The working roll side supporting device of the eighty-eight rolling mill is symmetrically arranged on the inlet side and the outlet side of the rolling mill about the center of the rolling mill; the method is characterized in that: each working roll is supported by one side supporting roll on the outlet side and one side supporting roll on the inlet side, each side supporting roll and the connected power end form each side supporting branch together, and four side supporting branches are symmetrically arranged about the center of the rolling mill; in each side support branch, each side support roller is connected with two groups of backing components through side support bearing blocks, and the side support bearing blocks are connected with the side support beams; the first inclined wedge is fixed on the side supporting beam and positioned at the outer side of the side supporting beam, the second inclined wedge is arranged at the outer side of the first inclined wedge in parallel along the vertical direction, is arranged opposite to the upper inclined surface and the lower inclined surface of the first inclined wedge, is contacted and pressed in a rolling state, and is connected with the second driving device; the first driving device, the second driving device and the guide rail are all fixed on the frame; the guide rail comprises a side support beam guide rail and a wedge guide rail, wherein the side support beam is supported on the side support beam guide rail and can slide back and forth along the side support beam guide rail, and the outer side of the second wedge is matched with the wedge guide rail and can slide back and forth along the wedge guide rail.
2. The work roll side supporting apparatus of a eighteen roller mill according to claim 1, characterized in that: the first driving device is provided with a position sensor and a pressure measuring head and is used for controlling the forward and backward positions of the side supporting beams; the second driving device is provided with a load cell, so that the second inclined wedge and the first inclined wedge are ensured to be pressed tightly, the additional force of the side supporting beam is not excessively increased, and the side supporting instability is avoided.
3. The work roll side supporting apparatus of a eighty-high rolling mill according to claim 2, wherein: the first driving device comprises a hydraulic motor and a jack connected with the hydraulic motor, the head of the jack is provided with a pressure measuring head, the side face of the jack is provided with a position sensor, the hydraulic motor drives the jack to ensure the position accuracy of the side supporting roller and measure the horizontal force, and once the horizontal force exceeds the design range, an alarm is sent out immediately.
4. The work roll side supporting apparatus of a eighteen roller mill according to claim 1, characterized in that: when the respective bevel angles of the first wedge and the second wedge are designed to be self-locking angles, the second driving device is not subjected to horizontal force.
5. The work roll side supporting apparatus of a eighteen roller mill according to claim 1, characterized in that: an emulsion spraying device is arranged inside the side supporting beam.
6. The work roll side supporting apparatus of a eighteen roller mill according to claim 1, characterized in that: the side support bearing seat is connected with the side support beam through a clamping groove.
7. The work roll side supporting apparatus of a eighteen roller mill according to claim 1, characterized in that: the working roll side supporting device of the eighteen-roll rolling mill comprises the following rolling preparation steps:
after the threading is finished, the inlet side supporting roller and the outlet side supporting roller slide along the guide rail fixed on the frame and are close to the working roller under the action of the first driving device with the position sensor and the pressure measuring head, whether the display values of the position sensor and the pressure measuring head reach preset in-place values is checked, and if the two side supporting rollers are in place, the next step of work can be carried out;
at the moment, the horizontal movement distance of the working roller is adjusted according to the preset setting, and the supporting rollers at the two sides of the working roller move by the same distance, so that the working roller is ensured to be moved to the preset position; the working roller is clamped in advance and then is horizontally moved, so that the stability of the working roller in the horizontal movement process is ensured; ensuring that the operation is finished, and performing the next step of work after checking without errors;
then, the second driving device works, the second inclined wedge is controlled to be close to the first inclined wedge, whether the display numerical value of the pressure measuring head reaches a preset in-place value or not is checked, and the rolling mill can be started to start rolling after the pressure measuring head is in place.
8. The work roll side supporting apparatus of a eighteen roller mill according to claim 1, characterized in that: the maintenance and roll replacement steps of the working roll side supporting device of the eighteen-roll rolling mill are as follows:
during maintenance, rolling is stopped firstly, then a second driving device is started, a second wedge is retracted, then a first driving device is started, a side support bearing seat is retracted to the outside of the roll changing range of a rolling mill working roll and a middle roll in the movable boundary of a stand, a roll changing trolley clamps the side support bearing seat assembly comprising the side support roll and a backing assembly and drags the side support bearing seat assembly out of the stand, a new side support bearing seat assembly is loaded again, and the side support roll and the backing assembly are replaced by reversing operation, so that the replacement process is time-saving and labor-saving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710602493.XA CN107350287B (en) | 2017-07-21 | 2017-07-21 | Working roll side supporting device of eighteen-high rolling mill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710602493.XA CN107350287B (en) | 2017-07-21 | 2017-07-21 | Working roll side supporting device of eighteen-high rolling mill |
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| Publication Number | Publication Date |
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| CN107350287A CN107350287A (en) | 2017-11-17 |
| CN107350287B true CN107350287B (en) | 2023-12-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AT523437B1 (en) * | 2020-12-09 | 2021-08-15 | Andritz Metals Gemany Gmbh | ROLLED FRAMEWORK |
| CN114147071B (en) * | 2021-11-24 | 2023-10-27 | 北京京诚之星科技开发有限公司 | Rolling mill roll shifting device |
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| US3620063A (en) * | 1969-05-19 | 1971-11-16 | Gen Cable Corp | Micro-adjusting guide |
| CN203417923U (en) * | 2013-07-25 | 2014-02-05 | 北京蒂本斯工程技术有限公司 | Tapered wedge adjusting device |
| CN103658191A (en) * | 2013-12-31 | 2014-03-26 | 一重集团大连设计研究院有限公司 | Side supporting device of working roll of cold rolling machine |
| CN104550239A (en) * | 2014-12-29 | 2015-04-29 | 一重集团大连设计研究院有限公司 | Novel eighteen-roller cold rolling mill |
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|---|---|---|---|---|
| US3620063A (en) * | 1969-05-19 | 1971-11-16 | Gen Cable Corp | Micro-adjusting guide |
| CN203417923U (en) * | 2013-07-25 | 2014-02-05 | 北京蒂本斯工程技术有限公司 | Tapered wedge adjusting device |
| CN103658191A (en) * | 2013-12-31 | 2014-03-26 | 一重集团大连设计研究院有限公司 | Side supporting device of working roll of cold rolling machine |
| CN104550239A (en) * | 2014-12-29 | 2015-04-29 | 一重集团大连设计研究院有限公司 | Novel eighteen-roller cold rolling mill |
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| Publication number | Publication date |
|---|---|
| CN107350287A (en) | 2017-11-17 |
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