SU1286309A1 - Support for rolling mill roll - Google Patents

Abstract

The invention relates to rolling mill production, in particular, to the structures of bearings of rolling mill assemblies. The purpose of the invention is to increase the support life by reducing the wear rate of the mating surfaces of the bearings and the roll neck. Oil mist or liquid lubricant flows through the channels 13 to the rolling bearing bodies 12 4. Grease is supplied to the guaranteed fit clearance between the inner rings 8 and the neck of the roll 6 through channel 14. From channel 14, the lubricant flows into the cavity 15 and along the oppositely directed helical grooves 16 The inner rings of the bearings — the roll neck — enter the mating surfaces of the pair. Seals 7 separate the lubrication cavity in bearings 4 communicating with channel -13 from cavity 15. This allows to supply to each cavity that type of lubricant that more closely meets the conditions of rolling and sliding friction. 1 il. 2 (L

Description

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The invention relates to rolling production, namely to the structures of the bearing assemblies of the mill rolls.

The aim of the invention is to increase the support life by reducing the wear rate of the mating surfaces of the bearings and the roll neck.

The drawing shows a support, a section along the axis of the roll neck.

The mill roll support consists of a pillow 1 with a supporting surface 2, for example, for a roll bending device or equalizer, its device (not shown).

In the plane of the 3 actions force from the mouth

The cavity 15 and through the spiral grooves 16, ground on the seating surface of the inner rings 8, penetrates into the guaranteed gap between them and the neck of the roll 6, thereby reducing the wear rate of the surfaces in contact with the turning of the inner rings 8 relative to the neck of the roll 6 during rolling. . Seals 7 separate the lubricant cavity in the bearings 4, communicating with channel 13 from the cavity 15, which allows to supply to each cavity that type of lubricant that more closely meets the conditions of rolling or sliding friction.

The use of the invention in comparison with the bending between the ka-5 bodies with the known ones will allow to increase the working of the bearings 4 the central annular collar 5 is made. The bearings 4 are mounted on the neck of the roll 6 with a guaranteed fit clearance. At both ends of the collar 5, spring-loaded seals 7 are installed, pressed with minimal force to the end surfaces of the inner rings 8 of the bearing by means of springs 9 installed in the holes 10 of the collet 5. Seals 7 are fixed from the pro20

ability of the bearing unit to reduce the simple rolling mill in case of accidental destruction of the roller bearings.

Claims (1)

Invention Formula The mill roll support, containing a cushion with a supporting surface, for example, for a roll bending device and a central collar, is positioned by pins 11 and mounted on a 25-fold force of bending forces, on both sides of which roll bearings are installed on the roll neck with a central clearance the collar has a channel for the supply of lubricant, characterized in that sheiku roll with a guaranteed clearance. The channels 13 are made to lubricate the rolling bodies 12 in the cushion 1, and a channel 14 through the body of the collar 3 is threaded into the guaranteed clearance between the inner rings 8 and the neck of the roller 6. The seals 7 form a cavity 15 to collect the lubricant, which communicates with spiral grooves 16, ground on the seating surfaces of the roll neck 6 and bearings 4. The device works as follows. Oil mist or liquid lubricant flows through the channels 13 to the rolling bearing bodies 12 4. The lubricant is supplied to the guaranteed fit clearance between the inner rings. 8 of the bearing 4 and the neck of the roll 6 is made through the channel 14 in the cushion 1. The lubricant (oil mist, liquid lubricant) from the channel 14 enters 1286309 The cavity 15 and through the spiral grooves 16, ground on the seating surface of the inner rings 8, penetrates into the guaranteed gap between them and the neck of the roll 6, thereby reducing the wear rate of the surfaces in contact with the turning of the inner rings 8 relative to the neck of the roll 6 during rolling. . Seals 7 separate the lubricant cavity in the bearings 4, communicating with channel 13 from the cavity 15, which allows to supply to each cavity that type of lubricant that more closely meets the conditions of rolling or sliding friction. The use of the invention in comparison with the known will allow to increase the work ability of the bearing unit to reduce the simple rolling mill in case of accidental destruction of the roller bearings. Invention Formula The mill roll support, containing a cushion with a supporting surface, for example, for a roll bending device and a central collar, is positioned by the forces of the bending force, on both sides of which roll bearings are installed on the roller neck with a guaranteed clearance, the center collar has a channel for lubrication characterized in that increasing the support life by reducing the wear rate of the mating surfaces of the bearings and roll roller, the central annular collar is equipped with spring-loaded annular seals supported on the inner rings of the bearings, mounted with a guaranteed clearance on the roll neck so that between the roll neck the specified annular seals and the inner diameter of the collar is formed a sealed cavity, while on one of the mating surfaces a pair of cervix - inner rings of bearings on both sides of the axis of the collar are oppositely helical grooves, and in the cushion between the rows of rolling elements of bearings there are channels for the supply of lubricant.