CN201684776U - A rolling mill backup roll - Google Patents

Abstract

The utility model belongs to steel rolling equipment, which is mainly used for 1650mm stainless strip steel multi-roll reversible cold rolling machine. The utility model concretely relates to a rolling mill supporting roll, which comprises a shaft and is characterized in that the shaft is provided with seven bearings and eight bearing seats, the bearings and the bearing seats are fixed by the positioning pins, the bearing seat at one end part of each shaft is provided with an elastic retaining ring, and the other end part of each shaft is provided with a fan shaped gear. The current price of the utility model is 2,000,000 yuan, the manufacturing period is short about 3 months, and the service life is equal to that of the existing rolling mill supporting roll.

Description

A rolling mill backup roll

Technical field:

The utility model belongs to rolling equipment, which is mainly used for a 1650mm stainless strip steel multi-roller reversible cold rolling mill, in particular to a rolling mill backup roll.

Background technique:

The rolling mill is the main equipment in the production of cold-rolled strip steel, and its function is to gradually roll thick steel strips into thin steel strips. The backup roll is an integral part of the 1650mm stainless steel strip multi-roll reversing cold rolling mill. The service life of rolling mill backup rolls is 3 to 5 years. At present, the price of rolling mill backup rolls excluding bearings is 5 million RMB, and the production cycle is relatively long, generally 6 months.

Invention content:

The utility model aims to provide a rolling mill back-up roll with low cost and short production period.

The technical solution for realizing the utility model is: comprising a shaft, which is characterized in that the shaft is provided with 7 bearings and 8 bearing seats, the bearings and the bearing seats are fixed by positioning pins, and an elastic stop is arranged beside the bearing seat at one end of the shaft. ring, and the other end of the shaft is provided with a sector gear.

The present price of the utility model is 2,000,000 RMB, and the production period is shorter, generally 3 months, and the service life is suitable with the service life of the existing rolling mill back-up roll.

Description of drawings:

Fig. 1 is a structural diagram of the utility model.

Fig. 2 is a right side view of Fig. 1 .

In the figure, 1, shaft, 2, circlip, 3, flat key, 4, bearing housing, 5, positioning pin, 6, bearing, 7, grease nozzle, 8, grease nozzle, 9, plug, 10, flat key, 11, screw, 12, flange, 13, spacer, 14, sector gear, 15, spacer.

Detailed ways:

Embodiment: As shown in Figure 1 and Figure 2, this embodiment includes a shaft 1, which is characterized in that the shaft 1 is provided with 7 bearings 6 and 8 bearing seats 4, the bearings 6 and the bearing seats 4 are fixed by positioning pins 5, and the shaft A circlip 2 is provided beside the bearing seat at one end of the shaft, and a sector gear 14 is provided at the other end of the shaft.

Claims (1)

1. A rolling mill backup roll, which includes a shaft, characterized in that the shaft is provided with 7 bearings and 8 bearing seats, the bearings and the bearing seats are fixed by positioning pins, and an elastic stop is arranged next to the bearing seat at one end of the shaft ring, and the other end of the shaft is provided with a sector gear.

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