Segments of slab section driving mechanism
Technical field
The utility model belongs to sheet billet continuous casting machinery equipment technical field, specifically relates to a kind of segments of slab section driving mechanism.
Background technology
The core of slab caster is a fan-shaped section; Fan-shaped section equipment is the crucial component devices of conticaster that the strand in the process of setting is supported and leads; Be gently depress the technology objective for implementation, its structural design for casting process carry out smoothly have material impact with the strict guarantee of slab quality.
The driving mechanism structure design of existing fan-shaped section equipment is very unreasonable, specifically can not under the situation that the casting condition changes, find out the position of solidifying terminal point exactly as existing; Driving mechanism is complicated, pinches to have some setbacks; The problems referred to above often cause sheet billet continuous casting to have some setbacks, and the gap values between rollers deviation is bigger, thereby have a strong impact on the opening degree precision, and the slab thickness that continuous casting goes out is inhomogeneous, and the waist drum phenomenon is obvious, makes production cost higher, and the waste product rework rate is higher.
Summary of the invention
The utility model mainly is to solve above-mentioned existing in prior technology technical problem, and a kind of segments of slab section driving mechanism is provided.
Be to solve the prior art problem, the utility model adopt technical scheme be: a kind of segments of slab section driving mechanism comprises upper frame and underframe; Said upper frame middle part is provided with hydraulic cylinder for reduction system; The piston rod of hydraulic cylinder for reduction system is being positioned at through bearing hinge connection on the walking beam of upper frame, and the bottom of walking beam is provided with one and lists driven roller, and the top of underframe is provided with row driven roller down; Upper and lower driven roller is up and down over against setting, and the sidepiece of said upper and lower driven roller is provided with shaft coupling.
As preferably; Said upper frame or underframe are made up of two side ends vertical clamping hydraulic cylinder seat beam and the welding of some transverse frame risers; Two transverse frame risers in the middle of the said upper frame are provided with the hydraulic cylinder for reduction system seat, and said hydraulic cylinder for reduction system vertically is arranged on the hydraulic cylinder for reduction system seat at middle part of upper frame.
As preferably, said hydraulic cylinder for reduction system is provided with pressure sensor, piston rod position sensor, also is provided with infrared radiation thermometer on the said walking beam.
As preferably, the said driven roller of going up constitutes by three sections continuous casting rods with following driven roller, bottom the walking beam be provided with four on roller seats, three sections continuous casting rod two ends rotating shafts of last driven roller are separately positioned on the roller seat; The driven roller installation position at the framework riser top of underframe is provided with four lower roller bases, and three sections continuous casting rod two ends rotating shafts of following driven roller are separately positioned on the lower roller base, and wherein two two lower roller bases in centre of going up roller seat and underframe in centre of upper frame shift to install.
Wherein the upper frame both sides of slab caster are respectively equipped with two clamping hydraulic cylinders, and upper frame is arranged on the clamping hydraulic cylinder seat of underframe through four clamping hydraulic cylinders, and the hydraulic cylinder for reduction system seat of upper frame is provided with hydraulic cylinder for reduction system.Above the upper frame, be provided with shower in the hydraulic cylinder for reduction system both sides, the return pipe of shower below pipeline is connected to underframe, shower spray cooling fluid can be taken away the heat that sheet billet continuous casting brings, and reduces the stress that continuous casting goes out slab.
The utlity model has reasonable in design, compact in design, characteristics easy to maintenance.Its driven roller is installed in the midway of framework, by hydraulic cylinder realize the up-down of driven roller, such drive arrangement can guarantee any time driven roller and strand between have maximum tractive force, and when wearing people's dummy bar separately lifting play driven roller.When this equipment of use carried out sheet billet continuous casting, under suitable roller footpath and roll spacing, sheet billet continuous casting was smooth and easy, and the slab thickness that continuous casting goes out is even, can reduce the casting blank bulging phenomenon.Simultaneously can reduce production costs the rework rate of reducing the number of rejects and seconds.In addition, its hydraulic cylinder has pressure sensing and position sensor function, can realize Long-distance Control after coupling together with computer, maintains easily.
Description of drawings
Fig. 1 is a kind of side-looking structural representation of the utility model;
Fig. 2 is a kind of cross-sectional view of the utility model;
Fig. 3 is a kind of perspective view of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, do further bright specifically to the technical scheme of the utility model.
Referring to Fig. 1, Fig. 2, Fig. 3, the utility model mainly is made up of upper frame 1, underframe 2, hydraulic cylinder for reduction system 12 etc.Upper frame 1 constitutes by being welded with some transverse frame risers 30 by the vertical clamping hydraulic cylinder of two side ends seat beam 111 with underframe 2.Two transverse frame risers 30 at the middle part of upper frame 1 are provided with hydraulic cylinder for reduction system seat 17; Hydraulic cylinder for reduction system 12 is installed on the hydraulic cylinder for reduction system seat 17; Its piston rod is hinged on the walking beam 18 that is positioned at upper frame 1 through bearing 19; Also be provided with infrared radiation thermometer 180 on the walking beam, this infrared radiation thermometer 180 can realize that dynamically heat is followed the tracks of to the continuous casting billet curdled appearance with after remote computer is connected.Hydraulic cylinder for reduction system 17 is provided with pressure sensor, piston rod position sensor.Hydraulic cylinder for reduction system seat 17 can be realized the roll gap remote adjustment with after remote computer is connected.In the course of work, the roll gap that pressure sensor, piston rod position sensor can carry out on-line monitoring exactly and calculate optimization the position of final freezing point in the strand.
The bottom of walking beam 18 is provided with one and lists driven roller 14, and the top of underframe 2 is provided with row driven roller 24 down, and driven roller is up and down over against setting up and down.Wherein go up driven roller 14 and constitute by three sections continuous casting rods with following driven roller 24, the driven roller installation position of walking beam 18 bottoms is provided with four and goes up roller seat 29, and three sections continuous casting rod two ends rotating shafts of last driven roller 14 are separately positioned on the roller seat 29; The driven roller installation position at the framework riser top of underframe 2 is provided with four lower roller bases 27; Three sections continuous casting rod two ends rotating shafts of following driven roller 24 are separately positioned on the lower roller base 27, and wherein two two lower roller bases 27 in centre of going up roller seat 29 and underframe 2 in centre of upper frame 1 shift to install.The sidepiece of upper and lower driven roller is provided with shaft coupling 170, can connect with dynamical system.
The both sides of last driven roller 14 also are respectively equipped with some free rollers 13 that list in the bottom of upper frame 1; The both sides of following driven roller 24 also are respectively equipped with free roller 23 under some row at the top of underframe 2, upper and lower free roller is corresponding up and down one by one.Go up free roller 13 and also constitute by three sections continuous casting rods with free roller 23 down, adjacent two list 13 3 sections continuous casting rods of free roller two roller seats 29 in centre shift to install, adjacent two row two roller seats 27 in centre of 23 3 sections continuous casting rods of free roller down shift to install; Two roller seats in centre 29 of 13 3 sections continuous casting rods of last free roller of same column setting also shift to install with two roller seats 27 in centre of following 23 3 sections continuous casting rods of free roller.Going up two roller seats in centre 29 of 13 3 sections continuous casting rods of free roller and two roller seats 27 in centre of following 23 3 sections continuous casting rods of free roller also shifts to install.Driven roller (14,24), free roller (13,23) adopt three sections continuous casting rollers, and physical life is long, and wearing and tearing have approximately reduced half the.
Upper frame 1 both sides of slab caster are respectively equipped with two clamping hydraulic cylinders 11, and upper frame 1 is arranged on the clamping hydraulic cylinder seat of underframe 2 through four clamping hydraulic cylinders 11, and the hydraulic cylinder for reduction system seat 17 of upper frame 1 is provided with hydraulic cylinder for reduction system 12.The two side ends of upper frame 1, underframe 2 is respectively equipped with lead 16,21, and lead 16,21 play the guiding role.When fan-shaped section is installed in 25 last times of arc-shaped base, lead 16,21 can get into from the groove that wall leads, and falls along gathering sill, makes its bottom install accurately to exist and just drops on the installation position of arc-shaped base 25.Arc-shaped base 25 is supported by supporting seat, is installed on the pedestal 26.
Above the upper frame 1, be provided with shower 15 in hydraulic cylinder for reduction system 12 both sides, the return pipe 22 of shower 15 below pipeline is connected to underframe 2, shower spray cooling fluid can be taken away the heat that sheet billet continuous casting brings, and reduces the stress that continuous casting goes out slab.
The utility model appropriate design driving mechanism; Framework connects to utilize four clamping hydraulic cylinders to incite somebody to action up and down; And make the relative underframe of upper frame to move up and down, and four clamping hydraulic cylinders driving upper frames move down during sheet billet continuous casting, and hydraulic cylinder for reduction system also drives driven roller near following driven roller simultaneously; Slab by driven roller clamping up and down and is moved forward, simultaneously the easy on and off roller also slightly application of force clamping slab with the thickness of even slab.The utility model reasonable in design makes sheet billet continuous casting smooth and easy, and the slab thickness that continuous casting goes out is even, can reduce production costs the rework rate of reducing the number of rejects and seconds.
At last, should be noted that: the above specific embodiment only is the more representational example of the utility model.Obviously, the utility model is not limited to the above-mentioned specific embodiment, and many distortion can also be arranged.Every any simple modification, equivalent variations and modification of the above specific embodiment being done according to the technical spirit of the utility model all should be thought the protection domain that belongs to the utility model.