CN201347587Y

CN201347587Y - Radial spherical plain bearing with groove

Info

Publication number: CN201347587Y
Application number: CNU2008202051031U
Authority: CN
Inventors: 余永辉; 杨汉伦; 周定
Original assignee: Guangzhou Design Institute
Current assignee: Guangzhou Design Institute
Priority date: 2008-12-12
Filing date: 2008-12-12
Publication date: 2009-11-18
Anticipated expiration: 2018-12-12

Abstract

The utility model relates to a radial spherical plain bearing with a groove, which comprises an outer ring and an inner ring. The radial spherical plain bearing is structurally characterized in that the inner ring is arranged in the inner cavity of the outer ring, the outside surface of the inner ring is equipped with a spherical outside surface, the outer ring is provided with a spherical inside surface in close fit with the spherical outside surface of the inner ring to form spherical movable connection between the inner ring and the outer ring, and a ring-shaped groove is disposed at the position of a ring opening of the inner ring, and the ring-shaped groove is positioned outside the outer ring. By arranging the ring-shaped groove at the ring opening position of the inner ring, the radial spherical plain bearing achieves the purpose of delaying the contact time of a pin shaft and the inner ring opening of the bearing when the pin shaft is forced to bend, can greatly decrease wear and greatly improve support capability and service life of building joints when applied to building joints.

Description

The plain radial bearing of band groove

Technical field

The utility model relates to a kind of plain radial bearing, particularly relates to a kind of plain radial bearing of the band groove that can use in node.Belong to the building structural element field.

Background technology

At present, plain radial bearing is building structure node a kind of critical piece commonly used, and the performance of plain radial bearing directly has influence on the performance of building structure node.Because plain radial bearing belongs to machine components, the steel grade of making plain radial bearing can't satisfy the earthquake resistant code requirement of building field.Simultaneously, described building structure node is made up of members such as plain radial bearing, bearing pin, otic placodes, in the node loading process, plain radial bearing will bear the pressure that bearing pin transmits, can directly oppress the interior collar extension of plain radial bearing after the bearing pin bending, the wearing and tearing of plain radial bearing have been quickened in the ring stressed increasing in edge in causing.Because existing plain radial bearing unreasonable structure causes interior damage easily, whole building structure node holding capacity is poor, application life short thereby make.These shortcomings have brought very big restriction for the application of existing plain radial bearing in the building field node.

The utility model content

The purpose of this utility model is to deposit unreasonable structure, flimsy defective in order to overcome existing plain radial bearing, and a kind of plain radial bearing structure with groove is provided.

The purpose of this utility model can be achieved through the following technical solutions:

The plain radial bearing of band groove, ring and outer shroud in comprising, its design feature is: interior ring is arranged in the inner chamber of outer shroud, and interior ring outer surface is provided with spherical outside surface, be equipped with outward and the identical Internal Spherical Surface of the spherical outside surface of interior ring, the sphere formula in forming between ring and the outer shroud flexibly connects; The collar extension place of ring offers an annular groove in described, and annular groove is positioned at outside the outer shroud.

The purpose of this utility model can also be achieved through the following technical solutions:

A kind of embodiment of the present utility model is: groove outside the external surface of described outer shroud can be provided with.

A kind of embodiment of the present utility model is: the centre of ring can be provided with through hole in described.

A kind of embodiment of the present utility model is: described plain radial bearing adopts big, interior ring to encorbelment apart from the bigger GEG series of less, interior ring thickness, can be subjected to bigger pulling force can be subjected to bigger pressure again.

A kind of embodiment of the present utility model is: the plane of rotation of described plain radial bearing is selected steel-steel combination for use, and material can be stainless steel 4Cr13.

A kind of embodiment of the present utility model is: the through hole that is positioned at the ring centre is taper, the tapering syndeton between formation and the external bearing pin; Promptly the correspondence position of the bearing pin that is used in combination with the plain radial bearing of described band groove also is provided with corresponding tapering, and tapering is very little, belongs in the self-locking angular region.

The utlity model has following beneficial effect:

The utility model is offered an annular groove by the collar extension place at interior ring, reach and postpone the purpose that bearing pin is subjected to the time of contact of curved back and bearing inner ring collar extension, in the application process of building node, can effectively reduce the wearing and tearing of plain radial bearing, improve the ability to bear and the life-span thereof of building node greatly.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a sectional view of the present utility model.

Fig. 3 is the structural representation of the bearing pin that is used in combination with the utility model.

The specific embodiment

Specific embodiment 1

In conjunction with Fig. 1, shown in Figure 2, the plain radial bearing structure, include the interior ring 1 and the outer shroud 2 that Internal Spherical Surface is arranged of spherical outside surface, interior ring 1 inner chamber, ring 1 external surface that is arranged in outer shroud 2 is provided with spherical outside surface 1-1, outer shroud 2 is provided with and the identical Internal Spherical Surface 2-1 of the spherical outside surface of interior ring, sphere formula in forming between ring 1 and the outer shroud 2 flexibly connects, and offers the groove 1-3 of the certain width and the degree of depth at the collar extension place of interior ring 1, and the centre of interior ring 1 is provided with the through hole 1-2 that coincide with bearing pin.As shown in Figure 3, the external surface of the bearing pin that is used in combination with the utility model is provided with certain taper 3.

The utility model is applied in the universal hinged joint of beam end of certain city's TV transmission tower.Described universal hinged joint is arranged on the connecting portion of overhanging box beam and outer barrel mast.Totally 817 of the universal hinged joints of 4 kinds of models in this engineering, have been used, all nodes have all used the plain radial bearing structure of the utility model band groove, in the node installation process, earlier the utility model is mounted in the build-in plate, then embedded build-in plate of the present utility model is inserted in the otic placode zone, the centre through hole 1-2 of ring 1 is corresponding with the axis hole position in the otic placode in of the present utility model, inserts bearing pin, has both assembled to finish.Described plain radial bearing is GEC series, stainless steel 4Cr13 material.During site operation, bearing pin is headed in the plain radial bearing in the through hole 1-2 of ring 1, realize between bearing pin and the plain radial bearing closely cooperating radially by less thrust.Because the tapering 3 of bearing pin is very little, belong in the self-locking angular region, therefore under the radial load effect, even node is subjected to bigger axial force, bearing pin can be from slippage in the bearing, for the sake of assurance yet, set up cover plate at the bearing pin two ends, cover plate is connected by screw with the bearing pin two ends, both can be anti-slip, and can make node more attractive in appearance again.The utility model is in application, because offering of groove alleviated bearing pin and be subjected to the pressure of curved back to bearing inner ring 1 collar extension, stainless material need not to add sliding agent when the utility model is used, and has an antisepsis simultaneously.

The utility model is mainly used in building engineering field and is applied in mechanical industry, its critical piece is an interior ring and the outer shroud that Internal Spherical Surface is arranged that spherical outside surface is arranged, can bear bigger load, simultaneously because plain radial bearing has the Internal Spherical Surface of outer shroud and the spherical outside surface of interior ring fits tightly, oscillating bearing can be in the characteristics of space unspecified angle rotation, plain radial bearing is developed in the node that is applied in the building structure, realize the requirement that node can a plurality of directions rotates, satisfied the building structure force request that becomes increasingly complex now.

Claims

1, the plain radial bearing of band groove, comprise interior ring (1) and outer shroud (2), it is characterized in that: interior ring (1) is arranged in the inner chamber of outer shroud (2), interior ring (1) external surface is provided with spherical outside surface (1-1), outer shroud (2) is provided with and the identical Internal Spherical Surface (2-1) of the spherical outside surface of interior ring, and the sphere formula in forming between ring (1) and the outer shroud (2) flexibly connects; The collar extension place of ring (1) offers an annular groove (1-3) in described, and annular groove (1-3) is positioned at outside the outer shroud (1).

2, the plain radial bearing structure of band groove according to claim 1 is characterized in that: the external surface of described outer shroud (2) is provided with outer groove (2-2).

3, the plain radial bearing structure of band groove according to claim 1 is characterized in that: the centre of ring (1) is provided with the through hole (1-2) that coincide with bearing pin in described.

4, the plain radial bearing structure of band groove according to claim 1 is characterized in that: ring (1) and outer shroud (2) are formed from steel, constitute the plane of rotation structure of steel-steel combination in described.

5, the plain radial bearing structure of band groove according to claim 1 is characterized in that: the through hole (1-2) that is positioned at ring (1) centre is taper, the tapering syndeton between formation and the external bearing pin.