A double-roll lifting device suitable for multi-roll rolling mill

Abstract

The invention discloses a double-roller hoisting device suitable for a multi-roller rolling mill. The double-roller hoisting device comprises hoisting fasteners (1A-1B), a spacer bar (2) and a lifting rope (3), wherein one hoisting fastener (1A) and one hoisting fastener (1B) form a group of movable fasteners; two groups of movable fasteners form a pair of sling; an inner diameter of a cylinder (12) of each of the hoisting fastener (1A) and the hoisting fastener (1B) is 10-20 percent larger than the diameter of each roller neck of a roller to be hoisted; the hoisting fastener (1A) and the hoisting fastener (1B) are connected with roller necks at two ends of the hoisted roller; the spacer bar (2) is fixedly connected with the hoisting fastener (1A); two ends of the lifting rope (3) are respectively and fixedly connected with the hoisting fastener (1A) and the hoisting fastener (1B); the middle of the lifting rope (3) is connected with a crane hook. The hoisting fasteners with the spacer bar and the hoisting fasteners are used in pairs, and a pair of working rollers can be hoisted for one time, so that the hosting efficiency can be multiplied. The device is simple in structure, flexible to separate, stable to operate and easy and convenient to operate, and the rollers can be safely and efficiently hoisted.

Description

technical field [0001] The invention belongs to the technical field of tooling equipment, further belongs to the technical field of hoisting slings, and specifically relates to a double-roller lifting device with simple structure, flexible separation, stable operation and easy operation. Background technique [0002] Modern multi-roll mills are mainly used for rolling wide-width plates, and the total rolling reduction rate of multi-roll mills can reach 90%. They are widely used for rolling thinner strips with thick gauge raw materials, and for rolling stainless steel plates that are difficult to deform. , Titanium plate, etc. Multi-roll mills such as 12-high, 16-high, and 20-high cold rolling mills are arranged in tower or tower eccentric symmetry, and the roll system is usually composed of backup rolls, intermediate rolls and work rolls. The tower arrangement roll system generally consists of 1 work roll, 2 or more middle rolls, and 3 or more support rolls. Work rolls, in...

AI Technical Summary

Problems solved by technology

In the prior art, a single roll is generally used for hoisting, which requires repeated hoisting, which consumes a lot of manpower and time, and the production efficiency is low.

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