CN201884459U - Radial and thrust combined rolling bearing - Google Patents

Abstract

The utility model discloses a radial and thrust combined rolling bearing which integrates a traditional radial bearing and a traditional thrust bearing into a whole. The radial and thrust combined rolling bearing comprises an axial force support ring (1), an axial rolling body (2), an outer ring (3), a radial rolling body (4) and a bearing inner ring (5), wherein the outer diameter of the axial force support ring (1) is equal to that of the outer ring (3), the inner ring (5) is fixed on a shaft, and the inner diameter of the axial force support ring (1) is 0.1 to 0.2 millimeter greater than that of the inner ring (5). When in use, the radial and thrust combined rolling bearing achieves the functions the same as that of the traditional radial bearing and the traditional thrust bearing used in match. The radial and thrust combined rolling bearing can also substitute for a cone bearing. The radial and thrust combined rolling bearing has multiple advantages: the bearing axial force is large, and the axial clearance and the radial clearance do not need to be adjusted.

Description

The centripetal thrust force compound rolling bearing

Technical field: the utility model radial-thrust bearing relates to the rolling bearing in the mechanical transmission.Particularly a kind ofly can well bear the combination bearing of axial force and radial force.

Background technique: traditional rolling bearing has three kinds of methods when bearing axial force and radial force at the same time: the one, radial bearing and thrust-bearing are used, but it is to use two independently bearings, generally all the external diameter of specific thrust bearing is big with the external diameter of the radial bearing of internal diameter, this just makes the loose ring supporting surface aperture of thrust-bearing littler than the outer ring external diameter of radial bearing, be unfavorable for processing and assembling, and it wants the collar of many thrust-bearings.Two are to use angular contact ball bearing, and its shortcoming is to produce an additional axial force in bearing radial force, work well because it will have an axial force greater than this additional force just can make in the running all the time, move axially otherwise will produce.Three are to use tapered roller bearing, its generally unsuitable singly only uses, and will adjust axially when using in pairs, radial internal clearance is to having relatively high expectations of adjusting.

Summary of the invention: in order to solve above-mentioned three kinds of existing deficiencys of situation, the utility model provides a kind of centripetal thrust force combination bearing, and it is by axial force bracing ring (1), axially rolling element (2), outer ring (3), radial rolling body (4) and bearing inner race (5) are formed.The external diameter of the external diameter of axial force bracing ring (1) and outer ring (3) equates that inner ring (5) is fixed on the axle, and the internal diameter of axial force bracing ring (1) is than the big 0.1-0.2mm. of internal diameter of inner ring (5)

The beneficial effects of the utility model: if in mechanical transmission, adopted the utility model centripetal thrust force compound rolling bearing, it is than adopting single radial bearing and list thrust-bearing only only to be used the collar that has reduced by a thrust-bearing, therefore can save certain material, reduce the gold machining amount, need also can save point space in the compact mechanism in structure.It and radial thrust bearing ratio do not need to overcome additional axial force, therefore no matter how axial force does not change and can produce radial internal clearance.It is compared with cone rolling, does not need to adjust radially axial clearance, if the main shaft at lathe adopts this centripetal thrust force compound rolling bearing, it can make circular runout and axial float all be tending towards 0, the adjustment man-hour when reducing assembling, the machining accuracy of raising lathe.

Description of drawings: the Figure of description of the utility model centripetal thrust force compound rolling bearing is the structural representation of radial-thrust bearing.Corresponding retainer is that common practise is not done to indicate and explanation.

Embodiment: the centripetal thrust force compound rolling bearing shown in Figure of description, a fixed pan is close on the plane that does not have arc groove of axial force bracing ring (1), bearing inner race (5) is contained in the bearing guard place of running shaft, and will there be the one side of arc groove relative with the arc groove of axial force bracing ring (1), axial rolling element (2) is loaded onto in the centre, outer ring (3) is contained in the fixed axle housing, like this axle when rotating, just can guarantee spool radially with single axial on the position.

Claims (1)

1. centripetal thrust force compound rolling bearing, it is by axial force bracing ring (1), axial rolling element (2), outer ring (3), radial rolling body (4) and bearing inner race (5) are formed, it is characterized in that: the external diameter of the external diameter of axial force bracing ring (1) and outer ring (3) equates that bearing inner race (5) is fixed on the axle, and the internal diameter of axial force bracing ring is than the big 0.1-0.2mm of internal diameter of inner ring (5).

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