Fan-shaped roller base compensation arrangement
Technical field
The utility model relates to a kind of fan-shaped roller base compensation arrangement.
Background technology
In production process, strand advances under the clamping of fan-shaped section up-down rollers, and strand is bearing from the straightening force of the static pressure of liquid core molten steel, withdrawal straightening machine, throwing power etc.Fan-shaped section is also being born the reaction force of strand simultaneously, therefore the framework of fan-shaped section and roller must have enough intensity, could keep desired roll gap, can implement exactly gently to depress, and there will not be obvious reduction the service life of fan-shaped section and roller.
In the time of strand process fan-shaped section, the ferrostatic pressure of strand inside is passed to roller and fan-shaped section by base shell, after fan-shaped section is stressed, can deform, at present, general roll gap compensation arrangement is to adopt four link-types to connect upper and lower framework, and deflection is larger, thereby fan-shaped section is opened.And because roll gap becomes large, the static pressure of molten steel can not all pass to upper frame, but born the ferrostatic pressure of part by the base shell of strand both sides, thereby the active force between strand and roller is reduced, conversely, can affect again the distortion of framework and pull bar, reduce roll gap.Therefore roll gap, how to adjust fan-shaped section is the key problem of fan-shaped section.
For this reason, designer of the present utility model is because above-mentioned defect, by concentrating on studies and designing, is comprehensively engaged in for a long time experience and the achievement of related industry for many years, and research and design goes out a kind of fan-shaped roller base compensation arrangement, to overcome above-mentioned defect.
Utility model content
The technical problems to be solved in the utility model is: in process, can affect the distortion of framework and pull bar, reduce roll gap.Therefore roll gap, how to adjust fan-shaped section is the key problem of fan-shaped section.
For addressing the above problem, the utility model discloses a kind of fan-shaped roller base compensation arrangement, comprise the positioner that is positioned at lower bottom base and the compensation arrangement that is positioned at upper bed-plate, it is characterized in that:
Described positioner comprises the bearing that is fixed on described lower bottom base by multiple bolts, and described bearing is provided with base plate, and described base plate is provided with lower bolster, and the upper surface of described lower bolster is provided with arc groove;
Described compensation arrangement comprises location-plate, the both sides of described location-plate are secured by bolts in the side of described upper bed-plate, the inner side of described location-plate is provided with a upper voussoir that can move left and right, the middle part of described location-plate is provided with an adjusting screw(rod) and adjusting nut, described upper voussoir is provided with an internal thread hole screwing togather for the thread segment of described adjusting screw(rod), described compensation arrangement also comprises a lower wedge block coordinating with described upper voussoir, thereby one end of described lower wedge block is resisted against the displacement that described location-plate lower wedge block when fixing at left and right directions that voussoir moves left and right on described carries out above-below direction and regulates, described lower wedge block is fixed with top board, described top board is provided with upper padding plate, the upper surface of described upper padding plate is provided with arc groove.
Wherein: described lower bolster and upper padding plate are made up of copper alloy.
Wherein: between described base plate and bearing, be provided with the lower rigidity packing ring of being made by steel alloy, between described base plate and lower rigidity packing ring, be provided with at least one lower elastic washer.
Wherein: on described bearing, be also provided with lower oil nozzle, described lower oil nozzle is communicated in oil duct in described bearing with supplying lubricating oil.
Wherein: between described top board and lower wedge block, be provided with the upper rigidity packing ring of being made by steel alloy, between described top board and upper rigidity packing ring, be provided with elastic washer at least one, so that elastic buffer to be provided when the rolling.
Wherein: on described top board, be also provided with oil nozzle, described upper oil nozzle is communicated in oil duct in described top board with supplying lubricating oil.
Known by said structure, fan-shaped roller base compensation arrangement of the present utility model has following technique effect:
1, fan-shaped section structural stability is good, and operational reliability is high; Roll gap precision is higher, and can reach ± 0.1mm of off-line assembly precision, in online can reach ± 0.2mm of roll gap control accuracy;
2, simple in structure, handling are convenient, and with low cost, practicality is better.
Detailed content of the present utility model can obtain by explanation described later and institute's accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model fan-shaped roller base compensation arrangement;
Fig. 2 is the cutaway view of N-N direction in Fig. 1;
Fig. 3 is the cutaway view of M-M direction in Fig. 1.
The specific embodiment
Referring to Fig. 1, show fan-shaped roller base compensation arrangement of the present utility model.
Described fan-shaped roller base compensation arrangement comprises the positioner that is positioned at lower bottom base and the compensation arrangement that is positioned at upper bed-plate.
Wherein, described positioner comprises the bearing 301 that is fixed on described lower bottom base by multiple bolts 102, described bearing 301 is provided with base plate 302, described base plate 302 is fixed on described bearing 301 by multiple hex bolts 105, and described base plate 302 is provided with lower bolster 304, the upper surface of described lower bolster 304 is provided with arc groove, better to coordinate the arc surface of fan-shaped roller.
Wherein, described lower bolster 304 is made up of copper alloy, is preferably made up of ZCuSn12Pb1.
Wherein, between described base plate 302 and bearing 301, be provided with the lower rigidity packing ring 303 of being made by steel alloy, described lower rigidity packing ring 303 is preferably made up of 42CrMo, for elastic buffer is provided, between described base plate 302 and lower rigidity packing ring 303, be provided with at least one lower elastic washer 313, so that elastic buffer to be provided when the rolling.
Wherein, be also provided with lower oil nozzle 101 on described bearing 301, described lower oil nozzle 101 is communicated in oil duct in described bearing 301 with supplying lubricating oil.
Wherein, described compensation arrangement comprises location-plate 312, the side of described upper bed-plate is fixed in the both sides of described location-plate 312 by bolt 103, the inner side of described location-plate 312 is provided with a upper voussoir 305 that can move left and right, the middle part of described location-plate 312 is provided with an adjusting screw(rod) 311 and adjusting nut 107, described upper voussoir 305 is provided with an internal thread hole screwing togather for the thread segment of described adjusting screw(rod) 311, thereby move to realize moving left and right of upper voussoir 305 by the spiral of adjusting screw(rod) 311, described compensation arrangement also comprises a lower wedge block 306 coordinating with described upper voussoir 305, the upper surface of the lower surface of described upper voussoir 305 and described lower wedge block 306 is the inclined-plane cooperatively interacting, and one end of described lower wedge block 306 is resisted against described location-plate 312 to fix at left and right directions, thereby when on described, voussoir 305 moves left and right, the displacement that makes lower wedge block 306 carry out above-below direction regulates, on described lower wedge block 306, be fixed with top board 322 by multiple hex bolts 105, described top board 322 is provided with upper padding plate 324, the upper surface of described upper padding plate 324 is provided with arc groove, better to coordinate the arc surface of fan-shaped roller.
Wherein, described upper padding plate 324 is made up of copper alloy, is preferably made up of ZCuSn12Pb1.
Wherein, between described top board 322 and lower wedge block 306, be provided with the upper rigidity packing ring 323 of being made by steel alloy, described upper rigidity packing ring 323 is preferably made up of 42CrMo, for elastic buffer is provided, between described top board 322 and upper rigidity packing ring 323, be provided with elastic washer 333 at least one, so that elastic buffer to be provided when the rolling.
Wherein, on described top board 322, be also provided with oil nozzle 121, described upper oil nozzle 121 is communicated in oil duct in described top board 322 with supplying lubricating oil.
Hence one can see that, and the compensation of base realizes by wedge structure, and this compensation way precision is adjustable, and because the angle on inclined-plane can be less, thereby realized very high degree of regulation, and its structure is very simple, handling and operation are all very convenient, have facilitated operating personnel and later maintenance.
Known by said structure, the utility model has the advantage of:
1, fan-shaped section structural stability is good, and operational reliability is high; Roll gap precision is higher, and can reach ± 0.1mm of off-line assembly precision, in online can reach ± 0.2mm of roll gap control accuracy;
2, simple in structure, handling are convenient, and with low cost, practicality is better.
It is evident that above description and to record be only for example rather than in order to limit disclosure of the present utility model, application or use.Although described in an embodiment and be described in the drawings embodiment, but the utility model does not limit by accompanying drawing example and the optimal mode thought at present of conduct of describing in an embodiment to implement the specific examples of instruction of the present utility model, scope of the present utility model will comprise any embodiment that falls into description above and appended claim.