All direction multifunctional adjustment disc extending machine

A multi-functional and all-round technology, applied in the direction of metal rolling stands, metal rolling mill stands, guiding/positioning/aligning devices, etc. Runout, increase in rolling elongation, etc., to eliminate oil leakage, increase the diameter of the guide disc, and enhance the rolling stability.

CN101104179BInactive Publication Date: 2010-10-06ANGANG STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2010-10-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an omnidirectional multi-functional disk type elongating mill, the diameters of an upper and a lower guide disk are increased; the lifting of the upper guide disk adopts a turbine, a worm and a leading screw device; the lifting of the lower guide disk adopts a standard spiral elevator; and the axial direction adjustment is realized by the standard spiral elevator; the positive direction location, lateral direction location and upper and lower direction location are realized by a hydraulic cylinder. The axial direction adjustment of the roller is realized by the standard spiral elevator; the radial direction is adjusted by the combination of a non-standard spiral elevator and the hydraulic cylinder; the locking device adopts the hydraulic cylinder and an adjusting wedge mechanism. Guide bushes of an outlet and an inlet port adopt the upper-pressing and lower-locking of the hydraulic cylinder. The reliability is increased by adopting the hydraulic system; the enlarged diameters of guide disks can improve the locking condition of the roller, the elongation coefficient is increased, screw threads in the steel tube are reduced after rolling, and the variety of products is enlarged; gaps of the axial direction and radial direction of the guide disks and the roller are reduced, and the stability of the rolling is strengthened; the structure of the side pressure oil cylinder of the roller is simple, and the running is reliable; the guide bushes of the outlet and inlet port adopt the upper-pressing and lower-locking device to realize the double-assurance.
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Description

technical field

[0001] The invention belongs to the field of steel rolling machinery and equipment, and in particular relates to a disc stretching mill for rolling seamless steel pipes. Background technique

[0002] Most of the seamless steel pipe rolling mills built in my country in the 1980s are 100-unit disc stretching machines, which are mainly composed of left and right rolls, upper and lower guide discs, and exit and entrance nozzles. With the advancement of rolling technology, especially seamless steel pipe rolling, and the increasing demand for products with increasing quality and variety, the disadvantages of the 100-unit disc stretching machine are backward in technology, insufficient in equipment capacity, and limited in production varieties. and highlight. The main problems that appear are: the diameter of the upper and lower guide discs is small, only 1000mm, which affects the improvement of output and quality, and the increase of variety and rolling elongation...

Examples

Embodiment Construction

[0019] The present invention is further described below in conjunction with accompanying drawing.

[0020] According to the length of the guideway after the disc stretching machine is 10m, the rolled steel pipe of the disc stretching machine can reach 9500mm.

[0021] The present invention increases the diameter of the upper and lower guide discs that were originally 1000mm, so that the diameters of the upper and lower guide discs are both 1500mm. At the same time, a large number of standard screw lifters and hydraulic cylinders, hydraulic cylinders and wedge iron combination technologies are used to realize various adjustments and controls of the rolling mill to meet the needs of production to the greatest extent. The lifting mechanism 1 of the upper guide plate adopts two sets of worm gear, worm, and lead screw devices. In addition, a gap elimination mechanism 2 is added to prevent impact and improve rolling stability. Two 20-ton standard screw jacks 8 are selected for the ...