CN206668741U - A kind of oscillating bearing for carrying fixing device - Google Patents

Abstract

It the utility model is related to a kind of oscillating bearing for carrying fixing device, including bearing outer ring, bearing inner race and fixing nut, bearing inner race is placed in bearing outer ring, and the width of the bearing outer ring is more than the width of the bearing inner race, and screw thread is provided with the outer surface both ends of bearing outer ring；The fixing nut is two, and is installed at the screw thread at bearing outer ring both ends, and clamping auricle by two fixing nuts realizes fixation.It is of the present utility model to carry advantage possessed by the oscillating bearing of fixing device and have the beneficial effect that：Installing and fixing method is simple, can effectively prevent that auricle is caused to damage when installing fixing bearing, and the uncertain factor in preventing installation fixed reduces auricle bearing capacity；Adopting nutted mode makes bearing extrusion load accurately be ensured.

Description

A kind of oscillating bearing for carrying fixing device

Technical field

The utility model belongs to bearing design technology field, more particularly to a kind of oscillating bearing for carrying fixing device.

Background technology

In aircaft configuration, it can usually use auricle and be attached two parts, and be to ensure that two auricles can phase To rotating, bearing can be set in auricle.Fixing means of the bearing in auricle is mainly relevant with the strength of materials of auricle, according to Auricle material strength limit, it is broadly divided into following five kinds of methods：

1. material strength limit σ_bDuring≤590MPa, without special groove on auricle, with steel ball ring-type rolling beading；2. material Strength degree 590MPa ＜ σ_bDuring≤1275MPa, there is special groove on auricle, with steel ball or roller ring-type rolling beading；3. material Expect strength degree 160MPa ＜ σ_b≤ 1275MPa, during relative elongation >=4%, without special groove on auricle, with drift or steel ball Compress；4. material strength limit 1275MPa ＜ σ_bDuring≤1770MPa, there is special groove on auricle, compressed with drift or steel ball； 5. material strength limit σ_bDuring >=160MPa, using being detachably fixed, i.e., the putting hole back-up ring in the dedicated slot of auricle.

Above fixed form is (reference can be made to HB 0-37-2003 Part IV：The fixation of bearing) it is solid by auricle deformation Dead axle is held, and auricle has different degrees of damage, and the edges and corners slotted on auricle can have stress concentration, certain journey The bearing capacity of auricle is weakened on degree.In addition, in above fixed form, bearing axially extrudes load and can not be guaranteed.

Utility model content

The purpose of this utility model is to provide a kind of oscillating bearing for carrying fixing device, solves current bearing and auricle The problem of bearing capacity declines after connection.

To reach above-mentioned purpose, the technical solution adopted in the utility model is：A kind of oscillating bearing for carrying fixing device, Including bearing outer ring, bearing inner race and fixing nut, bearing inner race is placed in bearing outer ring, and the width of the bearing outer ring is more than The width of the bearing inner race, screw thread is provided with the outer surface both ends of bearing outer ring；The fixing nut is two, and is installed on At the screw thread at bearing outer ring both ends, clamp auricle by two fixing nuts and realize fixation.

Further, the tooth height of the screw thread is in bearing outer ring outer surface.

Further, the inner surface both ends of the bearing outer ring are provided with chamfering.

Further, the chamfer angle is 30 ° to 60 °.

A kind of carry of the present utility model and has the beneficial effect that advantage possessed by the oscillating bearing of fixing device：Installation is solid It is simple to determine method, can effectively prevent that auricle is caused to damage when fixing bearing is installed, it is uncertain in preventing installation fixed Factor reduces auricle bearing capacity；Adopting nutted mode makes bearing extrusion load accurately be ensured；Bearing outer ring Interior chamfering can prevent connecting shaft from being touched in rotation process with bearing.

Brief description of the drawings

Accompanying drawing herein is merged in specification and forms the part of this specification, show meet it is of the present utility model Embodiment, and for explaining principle of the present utility model together with specification.

Fig. 1 is the oscillating bearing structural representation of the present utility model for carrying fixing device；

Fig. 2 is the oscillating bearing of the present utility model for carrying fixing device and auricle connection diagram.

Wherein, 1- bearing outer rings, 2- bearing inner races, 3- fixing nuts, 4- auricles.

Embodiment

To make the purpose, technical scheme and advantage that the utility model is implemented clearer, below in conjunction with the utility model Accompanying drawing in embodiment, the technical scheme in the embodiment of the utility model is further described in more detail.In the accompanying drawings, from beginning Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Described reality It is the utility model part of the embodiment to apply example, rather than whole embodiments.Below with reference to the embodiment of accompanying drawing description It is exemplary type, it is intended to for explaining the utility model, and it is not intended that to limitation of the present utility model.It is new based on this practicality Embodiment in type, the every other implementation that those of ordinary skill in the art are obtained under the premise of the work of creation type is not made Example, belong to the scope of the utility model protection.Embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.

In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on accompanying drawing institutes The orientation or position relationship shown, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply and be signified Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality The limitation of novel protected scope.

As shown in Figures 1 and 2, the oscillating bearing of the present utility model for carrying fixing device is including in bearing outer ring 1, bearing Circle 2 and two fixing nuts 3.The width of bearing outer ring 1 is more than the width of bearing inner race 2, the both ends of the outer surface of bearing outer ring 1 Provided with screw thread, and form center section external diameter and be more than two side portions (i.e. threaded portion), such a design there can be convenient bearing The screw thread at the installation of outer ring, fixing nut 3 and the both ends of bearing outer ring 1 is spirally connected and fastened, and two fixing nuts is clamped auricle 4, complete The fixation of matched bearings.There is chamfering (or interior chamfering) at the both ends of the inner surface of bearing outer ring 1, effectively can prevent in bearing When circle 2 rotates, avoid causing to wear with the axle (being not drawn into figure) of the fixation of bearing inner race 2 and the generation touching of bearing outer ring 1.At this In utility model, chamfer angle is 30 ° to 60 °, can be according to being actually needed free selection.The utility model carries fixing device Installation of the oscillating bearing in auricle 4, the suitable oscillating bearing of size is selected according to the thickness of auricle 4 and aperture first, then The fixing nut 3 on oscillating bearing is unloaded, bearing is installed in earhole, then fixing nut 3 is installed and clamp auricle completion Fixation to oscillating bearing.

A kind of oscillating bearing for carrying fixing device of the present utility model has the advantage that or had the beneficial effect that：

1) installing and fixing method is simple, can effectively prevent that auricle is caused to damage when installing fixing bearing, prevent from pacifying Uncertain factor during dress is fixed reduces auricle bearing capacity；

2) adopting nutted mode makes bearing extrusion load accurately be ensured；

3) the interior chamfering of bearing outer ring can prevent connecting shaft from being touched in rotation process with bearing.

It is described above, optimal embodiment only of the present utility model, but the scope of protection of the utility model is not This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model discloses Change or replacement, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with The scope of the claims is defined.

Claims (4)

1. a kind of oscillating bearing for carrying fixing device, it is characterised in that including bearing outer ring (1), bearing inner race (2) and fix Nut (3), bearing inner race (2) are placed in bearing outer ring (1), and the width of the bearing outer ring (1) is more than the bearing inner race (2) Width, be provided with screw thread at the outer surface both ends of bearing outer ring (1)；The fixing nut (3) is two, and is installed on outside bearing Enclose at the screw thread at (1) both ends, clamping auricle (4) by two fixing nuts (3) realizes fixation.

2. the oscillating bearing according to claim 1 for carrying fixing device, it is characterised in that the screw thread tooth height in Bearing outer ring (1) outer surface.

3. the oscillating bearing according to claim 1 for carrying fixing device, it is characterised in that the bearing outer ring (1) Inner surface both ends are provided with chamfering.

4. the oscillating bearing according to claim 3 for carrying fixing device, it is characterised in that the chamfer angle is 30 ° To 60 °.