Double-support type steel straightener and quickly-replaceable roller set thereof

Abstract

The invention firstly discloses a quickly-replaceable roller set of a straightener. The quickly-replaceable roller set comprises a driving shaft, a driven shaft, straightening rollers, a locking mechanism and an axial adjusting device. The locking mechanism comprises a threaded pull rod, a hydraulic cylinder and a driving mechanism, the hydraulic cylinder is used for applying locking force onto the straightening rollers, and the driving mechanism is used for driving the threaded pull rod to rotate. The invention further discloses a double-support type steel straightener adopting the quickly-replaceable roller set. The double-support type steel straightener comprises a framework, a plurality of quickly-replaceable roller sets, a driving device and a roller seam adjusting device, and the quickly-replaceable roller sets are arranged in upper and low rows and in a staggered manner. The double-support type steel straightener utilizing the quickly-replaceable roller set has the advantages of simple structure, safety, reliability, short roller replacement time, high work efficiency and adjustment accuracy and the like, and further, investment cost can be effectively reduced, straightening noise is reduced and product quality is improved.

Description

technical field [0001] The invention belongs to the technical field of steel rolling machinery, in particular to a double-supported profiled steel straightening machine and a quick-change roller set used for the double-supported profiled steel straightening machine. Background technique [0002] For the straightening of large-size profiles, simply supported structure (also known as gantry type) roller leveler is generally used. Traditional simply supported structure roller leveler generally adopts mechanical or semi-automatic locking structure (such as hydraulic nut). The tightening time is too long, which affects the productivity, and the lock is often not tight, which has potential safety hazards; the traditional simple-supported structure roller leveler needs to disassemble the mechanical equipment when replacing the straightening roller, and the replacement time of the straightening roller is as long as one day. It affects the normal production rhythm of the enterprise a...

AI Technical Summary

Problems solved by technology

[0002] For the straightening of large-size profiles, simply supported structure (also known as gantry type) roller leveler is generally used. Traditional simply supported structure roller leveler generally adopts mechanical or semi-automatic locking structure (such as hydraulic nut). The tightening time is too long, which affects the productivity, and the lock is often not tight, which has potential safety hazards; the traditional simple-supported structure roller leveler needs to disassemble the mechanical equipment when replacing the straightening roller, and the replacement time of the straightening roller is as long as one day. It affects the normal production rhythm of the enterprise and leads to low production efficiency; in addition, the traditional simply supported structure roller leveler still has the disadvantages of heavy equipment weight, high investment and inconvenient operation; the new gantry type steel leveler currently used in China Straightening machines are all designed and manufactured by foreign companies, and many parts need to be supplied by foreign companies. The introduction of a new type of gantry-type steel straightening machine from a foreign company will cost tens of millions or even hundreds of millions of yuan, which seriously affects the development of the national economy. develop

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