CN201404956Y - Roll supporting bearing for two-roll roughing mill - Google Patents

Abstract

The utility model discloses a roll supporting bearing for a two-roll roughing mill, which comprises an outer ring (1), an inner ring (2) and 132 rollers (4) arranged between the outer ring (1) and theinner ring (2). Seal rings (3) arranged at the two ends and a middle baffle ring (6) arranged at the middle part are arranged between the outer ring (1) and the inner ring (2), an oil filling hole (5) is arranged at the middle part of each roller, the wall thickness of the outer ring (1) is 13.5-14.5 mm, and each roller (4) has the size of phi 22*40 mm. By adopting such structure, the roll supporting bearing for the two-roll roughing mill increases the load-bearing capacity of the bearing, well controls the damage of the bearing, prolongs the service life and reduces the maintenance cost of the bearing, and improves production efficiency.

Description

A kind of roll bearing bearing of two roller roughing mills

Technical field

The utility model relates to bearing, relates in particular to a kind of roll bearing bearing of two roller roughing mills.

Background technology

The rolling force of two roller roughing mills reaches 3000KN, the roll bearing bearing of two roller roughing mills should have radially bearing capacity height, radial dimension is little, the limit speed height, the running accuracy height, characteristics such as for convenience detach, simultaneously also should be able to bear certain axial force, the structure of the roll bearing bearing of two present roller roughing mills is as shown in Figure 2: it comprises outer ring 1, inner ring 2 and roller 4, collar wall has the oil-way 7 of annular and the tank filler sleeve 5 that communicates with oil-way 7, the wall thickness of bearing outer ring 1 is 10.5～11.5 millimeters, bearing roller 4 is of a size of 25 * 40 millimeters of ￠, the quantity of roller 4 is 124, in the rolling copper strips process of two roller roughing mills, easily open hair check in the radial direction at oil groove place and collar wall, cause bearing to scrap, bearing is short service life, the maintenance cost height.

The utility model content

Technical problem to be solved in the utility model provides a kind of roll bearing bearing that prolongs bearing service life, reduces by two roller roughing mills of maintenance cost.

Solve the problems of the technologies described above, the technical solution of the utility model is: a kind of roll bearing bearing of two roller roughing mills, comprise the roller between outer ring, inner ring, outer ring and the inner ring, be provided with sealing ring that is arranged in two ends and the middle ring washer that is arranged in the middle part between described outer ring and the inner ring, the middle part of described outer ring has tank filler sleeve, and the wall thickness of described outer ring is 13.5～14.5 millimeters.

The quantity of described roller is 132, and each roller is of a size of 22 * 40 millimeters of ￠.

The roll bearing bearing of a kind of two roller roughing mills of the utility model adopts such structure, compared with prior art, the oil-way of bearing outer ring annular is removed, change no oil groove into, thickened the wall thickness of bearing outer ring, increased bearing capacity, damage of bearings is well controlled, prolong bearing service life, reduced maintenance cost, improved production efficiency.

Description of drawings

Be described in further detail below in conjunction with the roll bearing bearing of accompanying drawing a kind of two roller roughing mills of the utility model;

Fig. 1 is the structural representation of the roll bearing bearing of a kind of two roller roughing mills of the utility model;

Fig. 2 is the side view of roll bearing bearing of a kind of two roller roughing mills of prior art;

In Fig. 1, Fig. 2,1, the outer ring; 2, inner ring; 3, sealing ring; 4, roller; 5, tank filler sleeve; 6, guide ring; 7, oil-way.

The specific embodiment

As shown in Figure 1, a kind of roll bearing bearing of two roller roughing mills, comprise the roller 4 between outer ring 1, inner ring 2, outer ring 1 and the inner ring 2, be provided with sealing ring 3 that is arranged in two ends and the middle ring washer 6 that is arranged in the middle part between outer ring 1 and the inner ring 2, the middle part of outer ring 1 has tank filler sleeve 5, the wall thickness of described outer ring 1 is 13.5～14.5 millimeters, and the quantity of roller 4 is 132, and each roller 4 is of a size of 22 * 40 millimeters of ￠.Compare with the roll bearing bearing of prior art, (1) removes bearing outer ring band type oil-way, changes no oil groove into; Tank filler sleeve is changed in the middle of the bearing; (2) the bearing outer ring wall thickness strengthens; (3) the bearing ball size by Change into

, ball grain number changes 132 into by 124 in every cover.(1), (2) is improved the effect of having played the reinforcement bearing capacity, and damage of bearings is well controlled, and (3) roll bearing bearing that improves to make bearing bore diameter, outside dimension and prior art keeps identical, do not need to adjust the structure of roller seat again.

Claims (2)

1, a kind of roll bearing bearing of two roller roughing mills, comprise the roller (4) between outer ring (1), inner ring (2), outer ring (1) and the inner ring (2), it is characterized in that: be provided with sealing ring (3) that is arranged in two ends and the middle ring washer (6) that is arranged in the middle part between described outer ring (1) and the inner ring (2), the middle part of described outer ring (1) has tank filler sleeve (5), and the wall thickness of described outer ring (1) is 13.5～14.5 millimeters.

2, the roll bearing bearing of a kind of two roller roughing mills according to claim 1 is characterized in that: the quantity of described roller (4) is 132, and each roller (4) is of a size of 22 * 40 millimeters of ￠.

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