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A roll and a spring therefor

A roll and roll shaft technology, applied in the direction of rolls, metal rolling, metal rolling, etc., can solve the problems of Belleville springs such as poor results

Inactive Publication Date: 2008-09-10
SANDVIK INTELLECTUAL PROPERTY AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Belleville springs have not worked well for many different reasons

Method used

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  • A roll and a spring therefor
  • A roll and a spring therefor
  • A roll and a spring therefor

Examples

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Embodiment Construction

[0012] exist figure 1 , reference numeral 1 designates a drivable roller shaft having a rotationally symmetrical basic shape and having two axially spaced apart stop rings 2, 3, one of which, ring 2, is fixed and the other is a lock nut 3 . The fixed snap ring 2 can be made as figure 1 The illustrated annular shoulder is in the form, or is made in the form of a separate ring (not shown) which is detachably mounted on the shaft although locked axially relative to the shaft. A separable lock nut 3 is connected to the shaft by a threaded joint 4 comprising an internal thread on the inside of the nut ring and an external thread on the shaft.

[0013] Between the snap rings 2 , 3 is arranged a set of separable rings, some of which are roller rings 5 ​​and others are spacer rings 6 . A dedicated spacer ring 6A is inserted between the roller ring 5 and the ring spring indicated at 7 . In general, all rings have a rotationally symmetrical, more particularly cylindrical, basic shap...

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PUM

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Abstract

The invention relates in one aspect, to a roll, and, in another aspect, to a roll spring which is the core of the invention. The spring is in the form of a ring-shaped body (7) manufactured of an elastic material having two axially spaced-apart ends (13, 14). In a front end (13) of the spring body at least one first slot (15) opens which extends towards the rear end (14), without reaching the same, and which separates two forward-facing laminae (16, 17). In the rear end (14) at least one second slot (25) opens which extends towards the front end (13) without reaching the same, and which separates two rearward-facing laminae (27, 28). At each one of the two ends of the spring body, an end surface (19, 31) of a lamina is axially displaced in relation to the end surface (20, 30) of an adjacent lamina. When the spring is clamped between two rings of a roll shaft included in the roll, the protruding end surfaces are subjected to compressive forces that generate a labyrinth-shaped train of spring forces between the end surfaces.

Description

technical field [0001] In a first aspect, the invention relates to a roll comprising a roll shaft and two axially spaced apart snap rings, one of which is fixed and the other is a lock nut, in the form of roll rings and / or The other ring of the spacer ring is mounted between the stop rings and includes at least one spring having two axially spaced apart ends. [0002] In a second aspect, the invention also relates to such a spring. Background technique [0003] In such rolls, which are called composite rolls by those skilled in the art, substantially as described above, it is important that the roll rings remain pressed against the spacer rings present in tight contact so that the rings do not slip relative to each other. For this purpose, the lock nut alone is not sufficient, it is therefore necessary to arrange at least one powerful spring in a set of rings, which can continuously exert a spring prestress on the rings for a long time. For this purpose, Belleville springs...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B27/02
CPCB21B27/035F16C13/00
Inventor 雅罗斯拉夫·弗尔克约尔格·格莱策耶克·安德松
Owner SANDVIK INTELLECTUAL PROPERTY AB
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