CN2312361Y

CN2312361Y - Roller bearing

Info

Publication number: CN2312361Y
Application number: CN 97245036
Authority: CN
Inventors: 张学东; 孙风京
Original assignee: YANTAI METALLURGY MINE MACHINERY FACTORY
Current assignee: YANTAI METALLURGY MINE MACHINERY FACTORY
Priority date: 1997-12-02
Filing date: 1997-12-02
Publication date: 1999-03-31
Anticipated expiration: 2007-12-02

Abstract

The utility model discloses an external center-adjusting rolling bearing. The utility model has the structure that a rolling bar of the existing internal center-adjusting rolling bearing is not used, double rows of cylindrical rollers 3 are arranged between an inner ring 4 and an outer ring 2, the outer diameter of the outer ring 2 is in a spherical shape and both the inner diameter of the outer ring 2 and the outer diameter of the inner ring 4 are in a cylindrical shape. The utility model has the advantages of simple structure, low cost and obvious electricity-saving effect. When the utility model is used, the friction coefficient is small because the rollers and the inner ring slide axially. In addition, the utility model has an automatic center-adjusting function, so the concentricity of hollow shafts of both ends of a barrel body of a grinding mill can be adjusted.

Description

A kind of rolling bearing

The utility model relates to a kind of bearing, and particularly a kind of outer aligning rolling bearing is made bearing in the grinding machine of industry such as it is applicable to cement, controls gold, electric power.

A kind of interior selfaligning bearing is disclosed in the prior art, it is by the bearing support loam cake, interior ring, interior aligning roller, quill shaft, outer shroud, main bearing seat and rolling bar constitute, roller is installed on interior ring, between the outer shroud, interior ring is installed on the quill shaft, interior aligning roller is spherical in shape, the external diameter of the interior ring of Pei Heing is spherical in shape with it, the external diameter of outer shroud is the garden cylindricality, and internal diameter is then spherical in shape, and rolling bar is installed on the main bearing seat bottom, in the course of the work, inner aligning roller and outer shroud are adjusted the coaxality of grinding machine two ends quill shaft, and the elongation of grinding mill barrel and contraction are the rolling bars by the main bearing seat bottom, though this bearing fuel-economizing, water consumption not, but in the bearing element process, because the friction factor between interior ring and the roller is big, thereby power consumption is bigger, and this bearing structure is complicated, cost is higher, unreasonable structure.

Order of the present utility model ground is to want the structure of above-mentioned existing interior aligning antifriction bearing is improved, and makes it rational in infrastructure, simple, and cost is low, and power savings is obvious.

For achieving the above object, the technical solution adopted in the utility model is: the utility model comprises bearing support loam cake, interior ring, roller, outer shroud, quill shaft and bearing support, it is together that roller is installed on inner and outer rings, interior ring is installed on the quill shaft, and its structural feature is: remove the rolling bar of regulating center bearing base bottom in being installed on, adopt the garden cylinder roller, biserial is installed between the inner and outer rings, the external diameter of the outer shroud that cooperates with roller is spherical in shape, and internal diameter is the garden cylindricality, and the external diameter of interior ring is the garden cylindricality.

The utility model is because the garden of employing cylinder roller, the external diameter of outer shroud is spherical in shape, the external diameter of the internal diameter of outer shroud and interior ring is the garden cylindricality, during use, interior ring is done with roller and is endwisely slipped, friction factor is little, and has the self-aligning function, is used to adjust the concentricity of the quill shaft at the simplified two ends of grinding machine, can make cylindrical shell work as the temperature rising then stretches, quit work and then shrink, the interior ring of doing that roller is very natural slides, and its power savings is obvious, can reduce power consumption 15-20% than interior aligning antifriction bearing, the utility model does not need in the bearing support bottom rolling bar to be installed, and it is simple in structure, rationally, cost is low.

Fig. 1 is the utility model embodiment's a structural representation

Below in conjunction with drawings and Examples the utility model is done further detailed description.

As seen from Figure 1, outer aligning rolling bearing is to be made of bearing support loam cake 1, outer shroud 2, roller 3, interior ring 4, quill shaft 5 and bearing support 6, roller 3 is the garden cylindricality, and biserial is installed between outer shroud 2 and the interior ring 4, interior ring 4 is installed on the quill shaft 5, the interior external diameter of the interior ring 4 that cooperates with roller 3 all is the garden cylindricality, and the external diameter of outer shroud 2 is spherical in shape, and internal diameter then is the garden cylindricality.

Claims

1, a kind of rolling bearing, comprise: bearing support loam cake (1), outer shroud (2), roller (3), interior ring (4), quill shaft (5), bearing support (6), interior ring (4) is installed on the quill shaft (5), it is together with interior ring (4) that roller (3) is installed on outer shroud (2), it is characterized in that: roller (3) is the garden cylindricality, and biserial is installed between outer shroud (2) and the interior ring (4), and the external diameter of outer shroud (2) is spherical in shape, and the external diameter of the internal diameter of outer shroud (2) and interior ring (4) all is the garden cylindricality.