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A hydrodynamic bearing used to support a cylinder driven to rotate about its axis

A fluid dynamic bearing and axis rotation technology, applied in the direction of rotating bearings, shafts and bearings, sliding contact bearings, etc., can solve the problems of liquid film thickness reduction, bearing bush damage, etc., to reduce excessive pressure, The effect of risk reduction

Active Publication Date: 2015-08-19
菲弗斯有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] When the cylinder is supported by a single bearing, the cylinder deforms elastically above said bearing, this elastic deformation causes a local reduction in the thickness of the liquid film, which local reduction manifests itself in the application of excessive pressure on this same location on, may damage bearing pads

Method used

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  • A hydrodynamic bearing used to support a cylinder driven to rotate about its axis
  • A hydrodynamic bearing used to support a cylinder driven to rotate about its axis
  • A hydrodynamic bearing used to support a cylinder driven to rotate about its axis

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Embodiment Construction

[0039] The invention relates firstly to a hydrodynamic bearing 1 for supporting a cylinder 2 driven in a rotational movement about its axis.

[0040] The diameter of the cylinder is greater than or equal to one meter. The cylinder is hollow and possibly radially deformable.

[0041] The bearing mainly consists of a bearing pad 3 and a bearing pad support member, wherein the bearing pad is especially made of a metal with low hardness (for example: bronze, babbitt alloy or other anti-friction metal), and the bearing pad support member is especially Made of a metal (eg steel) that is harder than the bearing pad.

[0042] The bearing pad 3 , in particular of constant thickness, extends along a part of the cylinder with axis δ and has a guide surface 31 intended to match the outer surface of the cylinder by means of a lubricating film.

[0043] This guide surface 31 has a radius of curvature corresponding to that of the cylinder 2 (greater than or equal to 0.5 m).

[0044] The b...

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Abstract

A hydrodynamic bearing for supporting a hollow cylinder that may be deformable in the radial direction, driven in a rotational movement about its axis, the diameter being greater than or equal to one meter, the bearing essentially consisting of a bushing and a bushing support, and in which the bushing, notably of constant thickness, extends over a portion of cylinder of axis δ, having a guide surface, intended to follow the exterior surface of the cylinder via a film of lubricant, and a surface secured to the bushing support. The bushing support has, if appropriate locally, at least in the region of an intermediate zone of the bearing, cross-section-reducing elements allowing elastic deformation of the bearing so as to limit the maximum value of the guide forces over the bushing. The bearing is useful in supporting and guiding a rotating hollow grinder subjected to unevenly distributed forces during rotation.

Description

technical field [0001] The present invention relates to a hydrodynamic bearing for supporting a cylinder driven in rotational motion about its axis. [0002] The invention will find particular application in supporting and guiding rotating hollow cylinders, in particular hollow cylinders such as crushers, which are subjected to unevenly distributed forces. [0003] The invention also relates to a crusher equipped with a hydrodynamic bearing according to the invention. Background technique [0004] For the fine crushing of materials such as raw materials or clinker or certain ores for the manufacture of cement, a crusher is known which consists of a hollow cylinder driven in a movement of rotation about its axis , the inner wall of the hollow cylinder constitutes a circular track. The material is laid down in layers on an endless track and crushed by means of one or more rollers inside a hollow cylinder with an axis parallel to the hollow cylinder and which, as the cylinder...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C17/12B02C15/06
CPCF16C27/02F16C17/02F16C13/04
Inventor E.罗梅罗
Owner 菲弗斯有限公司
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