Single-rack six-roller three-drive progressive withdraw and straightening machine

Abstract

The invention relates to a single-rack six-roller three-drive progressive withdraw and straightening machine and belongs to the technical field of continuous casting equipment in the metallurgical industry. According to the technical scheme, the single-rack six-roller three-drive progressive withdraw and straightening machine comprises a rack (7), a free roller (16), a middle roller (17), a withdraw part and a blank stripping part; the withdraw part comprises a lower withdraw motor (4), an upper withdraw motor (5), a withdraw rotating arm (11), a withdraw hydraulic cylinder (22), an upper withdraw roller (23) and a lower withdraw roller (25); and the blank stripping part comprises a blank stripping hydraulic cylinder (8), a blank stripping motor (9), a blank stripping rotating arm (12), alower blank stripping roller (28) and an upper blank stripping roller (29), and the upper surfaces of the lower withdraw roller (25), the free roller (16), the middle roller (17) and the lower blank stripping roller (28) are located on one straightening horizontal plane. The single-rack six-roller three-drive progressive withdraw and straightening machine has the advantages that the machine can bearranged at the original position in a continuous casting arc straightening section as the technological need, the strain capacity concentrated to one point in a casting blank can be dispersed to four points to be completed, and the deformation rate of straightening points can be controlled to be within the allowance range.

Description

technical field [0001] The invention relates to a single-frame six-roller three-drive progressive tension leveler, which belongs to the technical field of continuous casting equipment in steelmaking plants in the metallurgical industry. Background technique [0002] The tension leveler is an important equipment in the continuous casting operation area of ​​the steelmaking plant. The single point tension leveler is widely used in the continuous casting production, but there are also major problems, mainly because the single point leveler will form at the tangent point. Maximum strain, although the straightening of the fully solidified slab can meet the requirements, but many steel mills require to increase the casting speed in order to increase the output, the liquid core of the casting slab of the high-speed continuous casting machine must be very long, and the single-point straightening Can not meet the production. [0003] Chinese patent "An Independent Frame Clamp-Type T...

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Problems solved by technology

[0002] The tension leveler is an important equipment in the continuous casting operation area of ​​the steelmaking plant. The single point tension leveler is widely used in continuous casting production, but there are also major problems, mainly because the single point leveler will form at the tangent point. Maximum strain. Although the straightening of fully solidified slabs can meet the requirements, many steel mills require to increase the casting speed in order to increase production. The liquid core of high-speed continuous casting machines must be very long, and single-point straightening Can not meet the production

[0003] Chinese patent "An Independent Frame Clamp-type Tensile Straightening Machine with Upper and Lower Roller Double Drives", patent number ZL201120233896. Multiple tension leveling machines are arranged in the interval, and the upper and lower rolls are driven by belts, which is beneficial to provide greater tension leveling force, and distribute the strain that is concentrated in one point inside the slab to multiple points to complete. It is suitable for new steel plants and can be designed in advance The location of the pincer-type tension leveling machine with an independent frame, but its disadvantage is that it needs a huge and dedicated integral arc-shaped frame base, and the tension leveler itself has a frame for fixing the upper and lower rolls , the structure is complex and the floor area is large, so it is not suitable for the transformation of the original continuous casting machine tensioning and straightening equipment, and the multi-frame straightening increases the workload of replacement, assembly and adjustment

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