CN206723256U - A kind of semi-rigid steering bearing - Google Patents

Abstract

A kind of semi-rigid steering bearing, belongs to rolling bearing field.The problem of attached raceway existence and stability difference of existing semi-rigid steering bearing, the utility model includes inner ring, retainer, rolling element and outer ring assembly, inner ring periphery is provided with outer raceway, outer ring assembly includes outer ring case, elastomer and two attached raceway bodies, two attached raceway bodies are relative and put and be positioned in the case of outer ring, attached raceway body is in annular, contacted on the outside of each attached raceway body between the inner surface of the casing of outer ring for face, annular circular arc concave surface is equipped with the inside of each attached raceway body, two annular circular arc concave surfaces are combined into is engaged raceway in corresponding with outer raceway, rolling element supports cooperation to be installed between interior raceway and outer raceway by retainer, elastomer is built in the outer ring case and forms axial pressing to one of them attached raceway body.The utility model stability is good, can reduce caused noise in bearing working, extend bearing service life.

Description

A kind of semi-rigid steering bearing

Technical field

The utility model belongs to rolling bearing field, especially relevant with a kind of semi-rigid steering bearing.

Background technology

The utility model patent of Application No. 200990100506.2 discloses a kind of rolling for car steering tube column Bearing arrangement, is a kind of semi-rigid steering bearing, and the rolling bearing system includes outer ring, inner ring and is positioned at outer ring and inner ring rolling At least row's rolling element between road, outer ring includes housing, the ring-type of two positioning in the housing attaches raceway and is pressed against shell The elastic ring of body and one of them attached raceway.The attached rolling track and radial section is rounded, attach raceway and shell inner surface it Between be linear contact lay, because its contact area is smaller, attach that raceway stability is poor, and bearing easily produces bounce in the course of the work, It is also easy to produce noise simultaneously.

Utility model content

The purpose of this utility model is intended to overcome the traditional semi-rigid steering bearing for being currently used for steering column for vehicles support attached Even the defects of raceway stability difference, there is provided a kind of special semi-rigid steering bearing of the preferable car steering tube column of stability.

Therefore, the utility model uses following technical scheme：A kind of semi-rigid steering bearing, including inner ring, retainer, rolling Kinetoplast and outer ring assembly, inner ring periphery are provided with outer raceway, it is characterized in that, the outer ring assembly includes outer ring case, elastomer With two attached raceway bodies, two attached raceway bodies are relative and put and be positioned in the case of outer ring, and attached raceway body is in annular, Contacted on the outside of each attached raceway body between the inner surface of the casing of outer ring for face, annular circle is equipped with the inside of each attached raceway body Arc concave surface, two annular circular arc concave surfaces are combined into is engaged raceway in corresponding with the outer raceway, and rolling element passes through the guarantor Hold frame support cooperation to be installed between the interior raceway and outer raceway, the elastomer is built in the outer ring case and to it In an attached raceway body form axial pressing.

As the supplement to above-mentioned technical proposal and perfect, the utility model also includes following technical characteristic.

The attached raceway body radial outside makes it be contacted between the outer ring the inner surface of the casing for face into the face of cylinder.

The outer ring case both ends all set radially inner turn-up portion, and axial limit is formed to described attached raceway body Position, wherein the turn-up portion of one end is axially bent to form the accommodating cavity for housing the elastomer, and the elastomer is pressed in this Accommodating cavity.

The utility model can reach following beneficial effect：By the way that the face of cylinder will be configured on the outside of attached raceway body, make attached Category raceway body and outer ring the inner surface of the casing between forming face contact, increase its contact area, by by attached raceway body with roll Contact level is configured to annular circular arc concave surface, increases the parcel face to rolling element, improves bearing stability, reduces bearing work Caused noise in work, extends bearing service life.

Brief description of the drawings

Fig. 1 is cross-sectional view of the present utility model.

Embodiment

Specific embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.

As shown in figure 1, the utility model includes inner ring 1, retainer 6, rolling element 7 and outer ring assembly, the periphery of inner ring 1 Provided with outer raceway, the outer ring assembly includes outer ring case 5, elastomer 3 and two attached raceway bodies 4, two attached raceway bodies 4 Relative and put and be positioned in outer ring case 5, attached raceway body 4 be in annular, and each the attached radial outside of raceway body 4 is into cylinder Face, it is set to be contacted between the inner surface of outer ring case 5 for face, the inner side of each attached raceway body 4 is equipped with annular circular arc Concave surface, two annular circular arc concave surfaces are combined into is engaged raceway in corresponding with the outer raceway, and rolling element 7 passes through the holding Frame 6 supports cooperation to be installed between the interior raceway and outer raceway, and the elastomer 3 is built in the outer ring case 5 and right One of them attached raceway body 4 forms axial pressing；The both ends of the outer ring case 5 all set radially inner turn-up portion 2, right Described attached raceway body 4 forms axial limiting, and the turn-up portion 2 of wherein one end is axially bent to form for housing the elastomer 3 accommodating cavity, the elastomer 3 are pressed in the accommodating cavity.

Claims (3)

1. a kind of semi-rigid steering bearing, including inner ring, retainer, rolling element and outer ring assembly, inner ring periphery is provided with outer rolling Road, it is characterised in that：The outer ring assembly includes outer ring case, elastomer and two attached raceway bodies, two attached raceway bodies Put and be positioned in the case of outer ring relatively, attached raceway body is in annular, on the outside of each attached raceway body and in the case of outer ring Contacted between surface for face, be equipped with annular circular arc concave surface on the inside of each attached raceway body, two annular circular arc concave surfaces are combined into With the outer raceway be engaged it is corresponding in raceway, rolling element by the retainer support cooperation be installed on the interior raceway and Between outer raceway, the elastomer is built in the outer ring case and forms axial pressing to one of them attached raceway body.

A kind of 2. semi-rigid steering bearing according to claim 1, it is characterised in that：The attached raceway body radial outside Into the face of cylinder.

A kind of 3. semi-rigid steering bearing according to claim 2, it is characterised in that：The outer ring case both ends are all set The turn-up portion of radially inner turn-up portion, wherein one end is axially bent to form the accommodating cavity for housing the elastomer, described Elastomer is pressed in the accommodating cavity.