18 results about "Strip mill" patented technology

The invention relates to the technical field of strip mill fault detection, in particular to a strip mill transmission shaft fault early warning method and system based on digital twinning. The method comprises the following steps: deploying multiple types of sensors at key parts of a transmission shaft of a strip mill, collecting real-time operation data, and performing time domain and frequency domain extraction on the operation data to obtain effective fault features; establishing a multi-dimensional evaluation index system, and dynamically adjusting fault priorities according to effective fault features; a grading standard is formulated according to the severity of the fault, an early warning threshold value of each grade is set, and fault early warning is carried out according to the corresponding grade; the system comprises a current data acquisition and feature extraction module, a fault condition priority dynamic adjustment module and a fault grading early warning module. By means of the mode, the fault priority is dynamically adjusted, operation and maintenance resource waste and production risk out-of-control are avoided, the accuracy and timeliness of transmission shaft fault early warning are improved, and the continuity and stability of strip steel production are guaranteed.

A method is for mitigating the effects of coil collapse on hot strip mill coils. A hot strip coil is removed from the mandrel / downcoiler and pre-sagged to create an initial sag by allowing gravity cause the coil to sag in a first specific direction for a first period of time. Then, without coil eye support to limit sagging, the direction of the sag caused by the force of gravity is modified to a direction perpendicular to the first specific direction and gravity is allowed to sag the coil for a second period of time. The hot strip coil being cooled enough by the end of the second period of time such that the rate of sagging of the hot strip coil has become negligible.

The invention relates to the technical field of metal rolling machining, and discloses an integrated multi-mode roller system switchable ultra-thin strip precision rolling mill system which comprises a closed type common rack and a screw-down system fixedly connected to the closed type common rack. The multi-mode detachable roller system mechanism is matched with the assembly space in the closed type common rack, the multi-mode detachable roller system mechanism comprises a six-roller roller system mechanism, a twelve-roller roller system mechanism and a twenty-roller roller system mechanism, and the screw-down system is used for adjusting the rolling thickness of the roller system mechanisms; the shared transmission mechanism comprises a motor, a gear seat and a transmission shaft, one end of the transmission shaft is in transmission connection with the motor through the gear seat, and the other end of the transmission shaft can be in transmission connection with any one of the six-roller system mechanism, the twelve-roller system mechanism and the twenty-roller system mechanism. Covering type rolling from thick strips to ultra-thin strips is achieved, the modular production requirement for small-batch customization of the ultra-thin strips is met, and the rack utilization rate and the equipment utilization rate are remarkably increased.

This invention discloses a method for determining and controlling the cause of wedge-shaped roll gaps in strip mills, comprising the following steps: First, determining whether the roll gap wedge shape is caused by the tilting of the lower support roll or by the cumulative wear and differential wear of the upper support roll bearing housing, AGC hydraulic cylinder, upper stepped pad, and other components on the operating and transmission sides; after determining the cumulative wear and differential wear of the upper support roll bearing housing, AGC hydraulic cylinder, upper stepped pad, and other components on the operating and transmission sides, using a technical solution to measure whether the upper support roll is tilted, further determining which component is worn, and a technical method for leveling the roll gap wedge shape, thus completely solving the roll gap wedge problem from its technical root; after determining that the lower support roll is tilted, further determining the cause of the tilting of the lower support roll, finally determining which component is worn, and a technical method for leveling the roll gap wedge shape, thus completely solving the roll gap wedge problem from its technical root.

The invention relates to the technical field of steel strip winding machines, in particular to a winding mechanism of a cold-rolled steel strip rolling mill, which comprises a winding drum, a supporting mechanism and a linear moving mechanism, and the supporting mechanism comprises a bottom plate, a supporting structure, a lifting structure and a switching structure; the supporting structure comprises a supporting platform and two supporting assemblies, the supporting platform is connected with the switching structure, the two supporting assemblies are symmetrically arranged on the supporting platform, each supporting assembly comprises a supporting plate, two rolling assemblies and a first synchronous assembly, one side of the middle of the supporting plate is hinged to the supporting platform, and the two rolling assemblies are symmetrically arranged on the supporting plate; the rolling assemblies are hinged to the ends of the supporting plates, and the first synchronous assembly is connected with the two rolling assemblies. The lifting structure is used for driving the supporting structure to abut against the winding drum. The switching structure is used for driving the supporting platform to rotate; the supporting structure, the lifting structure and the switching structure are arranged, so that friction between the supporting mechanism and the winding drum is reduced on the basis that the supporting mechanism has supporting stability.

The invention discloses a strip mill roller service state online diagnosis method, and belongs to the technical field of metallurgical engineering.The method comprises the steps that a finite element model of a strip mill roller is constructed, simulation calculation is conducted on the rolling process under different working conditions, an Archard wear model is coupled, and roller state parameters under all the working conditions are output; constructing an agent model for calculating a roller state under given production parameters; forming a closed-loop interaction system by the agent model and the finite element model, and repeatedly training and optimizing the agent model to obtain an optimized agent model; and deploying the optimized agent model on a production line to realize online diagnosis of the service state of the roller of the plate and strip rolling mill. According to the method, through an iterative optimization mechanism, the problems that the prior art cannot adapt to complex and changeable working conditions and the prediction precision is attenuated along with time are solved, and an intelligent and self-evolution solution is provided for predictive maintenance and product quality control of the roller.

The utility model relates to the technical field of cold-rolled strip steel production, and discloses a strip steel turnover device for a cold-rolled strip steel production line, which comprises a power mechanism and a bearing frame arranged in the power mechanism, and further comprises blocking plates rotationally arranged on the two sides of an inner cavity of the bearing frame, sleeves are in threaded connection with the two sides of the surface of the two-way threaded rod correspondingly, and supporting rods are rotationally connected with the tops of the sleeves. Under the cooperation of the rotating mechanism, the two-way threaded rod and the sleeve, the supporting rod can adjust the inclination angle of the blocking plate, the device can adjust the inclination angle of the blocking plate according to the size of strip steel, the blocking effect of the blocking plate on the strip steel is effectively improved, and the service life of the strip steel is prolonged. And meanwhile, under the cooperation of an auxiliary frame, a torsion spring, a clamping frame and a connecting plate, the blocking plate is supported, so that the blocking plate can be more stable, and the problems that an existing device is poor in stability and poor in safety during use are solved.

The utility model discloses a magnetic separator mounting structure for a strip steel rolling mill, which comprises a magnetic separator mounted on the strip steel rolling mill, the magnetic separator comprises a left mounting bracket and a right mounting bracket which are distributed left and right at intervals, and a plurality of magnetic bars distributed at intervals are arranged between the left mounting bracket and the right mounting bracket. A separation baffle which is transversely mounted is fixedly arranged between the left mounting bracket and the right mounting bracket; wherein the separation baffle comprises a separation outer frame located on the periphery and a plurality of separation crosspieces located on the inner periphery of the separation outer frame and fixedly connected with the separation outer frame, and every two adjacent magnetic bars are separated by the separation crosspieces; compared with the prior art, the magnetic separator can effectively prevent mutual adsorption among the magnetic bars during working, improves the working efficiency, and is simple and practical in structure, low in manufacturing cost and suitable for application and implementation in production.

The utility model relates to an anti-nodulation hot rolling guide device which comprises a guide, a lining plate and a cooling water pipe, the lining plate is correspondingly and vertically arranged on the vertical surface of the inner side of the guide; the cooling water pipe is correspondingly arranged on the top surface of the inner side of the guide; a plurality of strip-shaped water spraying openings are evenly distributed in the pipe wall of one side of the cooling water pipe, and the water spraying openings correspond to the lining plate in direction. The device can play a huge role in the process of producing silicon steel in a hot-rolled strip factory, can effectively reduce the probability that nodulation foreign matters are adhered to the surface of the lining plate, and reduces the hot stop time for standby channel inspection and cleaning of nodules on the surface of the lining plate; the surface foreign matter press-in defect of the hot-rolled steel plate is greatly reduced; and meanwhile, the guide is small in modification, low in investment, safe and effective, improves the unit operation efficiency, reduces the risk that foreign matters on the surface of a product are pressed into defects, and improves the qualification rate of hot-rolled silicon steel products.

The invention provides a resistance strip milling and correcting integrated device, which is used for processing a groove on an alloy strip, and comprises a traction turntable, and a cutting table and a shaping assembly which are sequentially arranged along the feeding direction of the alloy strip. A milling cutter is arranged on the cutting table and is used for cutting the alloy strip to form a groove; the shaping assembly comprises a motor, a shaping seat, a polishing wheel and two follower wheels, a rail is arranged on the shaping seat, the two follower wheels are located on the two sides of the rail, a shaping area is arranged between the two follower wheels, an output shaft on the motor is connected with the polishing wheel, the polishing wheel is located on the shaping area, and a blade part is arranged on the outer wall of the polishing wheel and extends into the groove; wherein a coupler is arranged between the polishing wheel and the output shaft. According to the milling and correcting integrated device for the resistance strip, the alloy strip can be slotted and shaped, the machining efficiency is improved, meanwhile, a motor is protected when the material blocking phenomenon occurs, the equipment maintenance cost is reduced, and the service life of the motor is prolonged.

The utility model relates to the technical field of inspection lines for plate and strip production of steel mills, in particular to a stacking frame for storing cut tail plates on an inspection line. Comprising a frame body, a reinforcing plate, a rib plate and a bottom plate, the frame body comprises a vertical surface and an inclined surface, the reinforcing plate is arranged behind the vertical surface, the rib plate is arranged behind the reinforcing plate, the frame body, the reinforcing plate and the rib plate are welded on the bottom plate, the vertical surface and the inclined surface are welded into a whole, and the included angle between the vertical surface and the inclined surface is 80 degrees; the reinforcing plates are welded to the rear portions of the vertical faces of the frame bodies, the bottoms of the reinforcing plates are welded to the bottom plate, each set of rib plates comprises two rib plates, the two rib plates are welded to the two sides of the rear faces of the reinforcing plates respectively, the bottoms of the rib plates are also welded to the bottom plate, the four sets of frame bodies, the reinforcing plates and the rib plates are welded to the bottom plate, and fixing bolts are arranged on the bottom plate and adopt chemical anchor bolts. The stockpiling rack for storing the tail cutting plates on the inspection line has the advantages that neat stacking is guaranteed, impact resistance is enhanced, hoisting is facilitated, stability of the stockpiling rack is enhanced, and the stockpiling rack is firm to mount.

The application discloses a kind of slab data follow 5G crane hoisting automatic conveying control method and system, comprising: obtaining hot-rolled strip mill slab data, and the slab data is structured processing;Based on the slab data after structured processing hoisting automatic transmission control;Structured processing includes the unstructured slab data structured processing is slab furnace number, slab length, slab width, slab number, steel coil number;When slab hoisting to the load weight of target roller is not greater than minimum clamp weight and not less than empty hook weight, target roller then obtains limit switch signal to realize slab data follow 5G crane hoisting automatic conveying.The application will slab data follow 5G crane hoisting slab automatic conveying to furnace roller, make slab data from artificial check to program automatic check leap, improve data accuracy, reduce artificial conveying, check link, steel efficiency, capacity significantly improve, improve the operation intensity of operator.

The utility model relates to the field of hot rolling strip steel rolling mill bearing seats, and discloses a finish rolling working roll bearing seat improved type guide round key device which comprises a storage groove, the storage groove is formed in one side of a guide round key body, the inner wall of the storage groove is perpendicular to one side of the interior of the storage groove, the depth of the storage groove is 16 mm, and the inner wall of the storage groove is perpendicular to one side of the interior of the storage groove. A storage groove is formed in the guide round key body, a back chamfer is formed in the inner wall face of the storage groove, the angle between the back chamfer and the storage groove is 30 degrees, the depth of the back chamfer is 5 mm, a front chamfer is formed in the surface of the guide round key body, and the height of the guide round key body is 37.5 mm. According to the utility model, as the inner wall surface of the storage groove is perpendicular to one side of the interior of the storage groove, when the roller matching pin is in contact with the vertical surface of the storage groove in the storage groove, cylindrical surface contact can be effectively formed, so that the axial force of the roller bearing seat can be better borne, and the bearing seat is prevented from being separated due to stress; and the condition that the roller falls to cause a crushing injury accident is avoided.

This invention relates to the field of metal rolling technology, and in particular to a diversion device for solving oil stains on the surface of strip steel, comprising a diversion plate body and an installation assembly; the diversion plate body includes an arc-shaped diversion plate axially disposed above the degreasing roller at the exit of the strip mill, and two vertical diversion plates disposed at the two ends of the arc-shaped diversion plate, both the arc-shaped diversion plate and the vertical diversion plates being double-layered structures; the installation assembly includes two mounting ears symmetrically fixed on the outer arc surface of the arc-shaped diversion plate, and each of the two mounting ears has a mounting hole on its surface; by setting the diversion plate body and the installation assembly, the emulsion splashed and dripping above the degreasing roller is intercepted by the arc-shaped diversion plate and diverted to both sides under the action of the inner arc surface of the arc-shaped diversion plate, thereby preventing the emulsion from dripping onto the surface of the strip steel, improving product quality, and solving the problem of oil stains under high-speed rolling.

The utility model relates to the technical field of metallurgy hot rolling equipment, in particular to a hydraulic damping type step pad lifting and balancing device of a hot rolling strip mill. The problems of vibration deviation, short service life and the like of a traditional device are solved, and the plate and strip rolling precision and the equipment stability are improved. The device comprises a plurality of elastic devices arranged below a lower stepped pad of the rolling mill, and the elastic devices are fixed on a sliding plate of a rack through flange plates. The elastic device comprises a high-pressure-resistant hydraulic oil cylinder, a piston rod is arranged in the hydraulic oil cylinder, labyrinth type clearance sealing is adopted, and an adjustable throttling valve is arranged on the hydraulic oil cylinder. The oil cylinder is vertically installed to replace a traditional flat spring, rigid supporting of a mechanical spring is replaced through the fluid dynamic damping characteristic, a high-reliability closed-loop control system is formed, the stability and precision problems in the rolling line adjusting process are solved, and gapless precise regulation and control of the step pad are achieved.

The application provides a strip rolling mill control method and device, electronic equipment and storage medium. The method comprises the following steps: obtaining a current rolling parameter group of a current stand and a current strip hardness distribution field and a current strip flatness distribution field at the exit of the current stand; performing roll gap deviation adjustment amount calculation on the current strip hardness distribution field and the current strip flatness distribution field respectively and the current rolling parameter group to obtain a current hardness corresponding roll gap deviation adjustment amount and a current flatness corresponding roll gap deviation adjustment amount; determining a target roll gap deviation adjustment amount according to the current hardness corresponding roll gap deviation adjustment amount and the current flatness corresponding roll gap deviation adjustment amount; and controlling the roll gap of the current stand according to the target roll gap deviation adjustment amount. The application realizes multi-factor and multi-dimensional control of hardness and flatness, effectively reduces the number of manual interventions, realizes unmanned and few-man stable production, greatly improves the production automation rate, and is suitable for multi-stand continuous rolling mills and single-stand rolling mills.

The utility model belongs to the technical field of roller transmission, and particularly relates to a thin strip mill roller transmission mechanism which comprises a transverse barrel, an adjusting barrel is movably installed in the transverse barrel, and connectors are fixed to the end, away from the adjusting barrel, of the transverse barrel and the end, away from the transverse barrel, of the adjusting barrel. A lead screw is rotationally installed in the transverse cylinder, a transmission disc is installed on the lead screw in a threaded mode, and a guide rod used for installing the adjusting cylinder is installed on the transmission disc in a sliding mode through three sliding holes formed in the transmission disc. According to the roller transmission mechanism of the thin-strip rolling mill, the distance between the two connectors can be adjusted by driving the lead screw to rotate without surveying the distance between the roller and the motor in advance, and the transmission mechanism can be installed between the motor and the roller by conducting adaptive adjustment according to the distance between the motor and the roller; the installation difficulty of the transmission structure is reduced, installation and use of the transmission structure are facilitated, tight and stable connection between the transmission structure and the rollers is facilitated, and the transmission efficiency and stability of the whole rolling mill system are improved.

The utility model relates to an easy-to-wash pipeline for lubrication rolling. The easy-to-wash pipeline comprises a hot water pipeline assembly, a steam pipeline assembly, a washing pipeline and a middle pipeline, the output end of the steam pipeline assembly, the output end of the hot water pipeline and the input end of the flushing pipeline are connected through a tee joint. And the input end of the middle pipeline is connected with the output end of the flushing pipeline. In the lubricating and rolling process of a hot-rolled strip factory, the lubricating oil supply pipeline can be effectively cleaned, the problem of poor cleaning effect in winter is effectively solved through the steam pipeline assembly, and meanwhile the risk of pipeline blockage caused by freezing of the cleaning water can be avoided.