CN208294945U

CN208294945U - A kind of self-lubricating knuckle bearing for steering engine transmission mechanism

Info

Publication number: CN208294945U
Application number: CN201820615968.9U
Authority: CN
Inventors: 杨艾婷; 马仁杰
Original assignee: SHANGHAI TIANAN BEARING CO Ltd
Current assignee: SHANGHAI TIANAN BEARING CO Ltd
Priority date: 2018-04-23
Filing date: 2018-04-23
Publication date: 2018-12-28
Anticipated expiration: 2028-04-23

Abstract

The utility model discloses a kind of self-lubricating knuckle bearings for steering engine transmission mechanism, and including bearing outer ring and the bearing inner race being placed in bearing outer ring, and the inner wall of the outer wall of bearing inner race and bearing outer ring is fitted close；A circle groove is opened up on the inner wall of the bearing outer ring, inlays a selflubricating liner in the groove, and the selflubricating liner is by composite braided object and coated on composite braided object and thermoset resin layer corresponding with the outside wall surface of bearing inner race is constituted.The self-lubricating knuckle bearing of the utility model is able to satisfy the precision needs of the movement of steering engine, support, has the advantages that self-lubricating, corrosion-resistant, long storage life, the long-life, heavy load, high-precision.

Description

A kind of self-lubricating knuckle bearing for steering engine transmission mechanism

Technical field

The utility model relates to a kind of self-lubricating knuckle bearings for steering engine transmission mechanism.

Background technique

Oscillating bearing is assembled by inside and outside circle.The arc-shaped structure of the inner wall of outer ring (spherical surface), inner ring is placed in outer ring, And the outer wall of inner ring and the inner wall of outer ring are fitted close.

Steering engine is the driver of position and angle servo.It is commonly used in aircraft, satellite, guided missile, ship.Such as guided missile appearance The pitching of state transformation, yaw, rolling movement require steering engine to cooperate and complete.

The matched oscillating bearing of steering engine requires high-precision, long-life, self-lubricating.It is also needed applied to missile-borne oscillating bearing Take long storage life (such as 15 years).Corrosion resistance with higher is also needed using Yu Haiyang, carrier-borne oscillating bearing.

Existing oscillating bearing is not able to satisfy above-mentioned requirements.In precision aspect, the swing of existing oscillating bearing and aligning The assembly precisions such as precision (indexs such as clearance and staring torque), Internal and external cycle adaptation (adaptation index) are not able to satisfy steering engine to axis The requirement held.In terms of lubrication, existing oscillating bearing can not achieve self-lubricating, or use self-lubricating solid, but its lubricity Energy, storage period cannot meet the requirements.In terms of corrosion resistance, at present it is usually the bearing of high-carbon-chromium bearing steel, salt cannot be passed through Mist, damp and hot, mould environmental test.In terms of carrying, the operating condition of steering engine driver is heavy load to the specification oscillating bearing, especially It is that axial load is larger, and the lubriation material of bearing is easy to be extruded.

Utility model content

There is provided the purpose of the utility model is to overcome the defect of the prior art it is a kind of for steering engine transmission mechanism from Lubricating joint bearing, it is able to satisfy the precision needs of the movement of steering engine, support, has self-lubricating, corrosion-resistant, long storage life, length Service life, heavy load, high-precision advantage.

Purpose of the utility model is realized as follows: a kind of self-lubricating knuckle bearing for steering engine transmission mechanism, packet The bearing inner race for including bearing outer ring and being placed in bearing outer ring, and the outer wall of bearing inner race and the inner wall of bearing outer ring are closely matched It closes, wherein

A circle groove is opened up on the inner wall of the bearing outer ring, and a selflubricating liner is inlayed in the groove, it should be from profit Sliding liner is by composite braided object and coated in the corresponding thermoset resin layer of outside wall surface on composite braided object and with bearing inner race It constitutes.

The above-mentioned self-lubricating knuckle bearing for steering engine transmission mechanism, wherein the composite braided object is by polytetrafluoroethyl-ne Alkene fiber and glass fibre are interwoven；The thermoset resin layer is novolac resin layer.

The above-mentioned self-lubricating knuckle bearing for steering engine transmission mechanism, wherein the composite braided object with a thickness of 0.3mm, the thermoset resin layer with a thickness of 0.2mm.

The above-mentioned self-lubricating knuckle bearing for steering engine transmission mechanism, wherein the selflubricating liner is viscous by glue Knot is in the groove of the bearing outer ring.

The above-mentioned self-lubricating knuckle bearing for steering engine transmission mechanism, wherein the inside and outside circle of bearing is all made of high-carbon Chromium stainless bearing steel, martensitic stain less steel or PH stainless steel.

The self-lubricating knuckle bearing for steering engine transmission mechanism of the utility model has the following characteristics that the fortune for meeting steering engine Precision that is dynamic, supporting needs, and has the characteristics that self-lubricating, without adding lubricant grease in using preceding and use；In corrosion resistance Energy aspect can pass through salt fog, damp and hot, mould environmental test (national military standard environmental test or U.S.'s DO160E standard)；It can be with steering engine Complete machine is stored 15 years；Wear-out life experiment examination can be swung by national military standard；Can bear heavy duty: outer ring inner wall is band groove knot Structure, selflubricating liner are not easy to be extruded, and are not in axial displacement in Axial Loads lower bearing inner ring.

Detailed description of the invention

Fig. 1 is the axial section of the self-lubricating knuckle bearing for steering engine transmission mechanism of the utility model；

Fig. 2 is the section of the selflubricating liner in the self-lubricating knuckle bearing for steering engine transmission mechanism of the utility model Figure.

Specific embodiment

Below in conjunction with attached drawing, the utility model is described in further detail.

Please refer to Fig. 1 and Fig. 2, the self-lubricating knuckle bearing for steering engine transmission mechanism of the utility model, including bearing Outer ring 1 and the bearing inner race 2 being placed in bearing outer ring 1, and the inner wall of the outer wall of bearing inner race 2 and bearing outer ring 1 is fitted close, Wherein:

Bearing inner race 2 and bearing outer ring 1 are all made of high carbon chromium stainless bearing steel, martensitic stain less steel or precipitation hardenable Stainless steel；

A circle groove 10 is opened up on the inner wall of bearing outer ring 1, and a selflubricating liner 3 is inlayed in the groove 10, it should be certainly Lubrication liner 3 is by composite braided object 31 and coated on composite braided object 31 and thermosetting corresponding with the outside wall surface of bearing inner race 2 Property resin layer 32 constitute.Selflubricating liner 3 is bonded in the groove 10 of bearing outer ring 1 by glue；

Composite braided object 31 with a thickness of 0.3mm, thermoset resin layer 32 with a thickness of 0.2mm.

Composite braided object 31 is interwoven by polytetrafluoroethylene fibre and glass fibre；Thermoset resin layer 32 is phenolic aldehyde tree Rouge layer.

When making selflubricating liner 3, composite braided object 31 is first woven by polytetrafluoroethylene fibre and glass fibre, then On the surface of composite braided object 31 coat thermoset resin layer 32, be then immersed in thermosetting resin, then it is repressed and Solidification.

The self-lubricating knuckle bearing for steering engine transmission mechanism of the utility model has the following characteristics that the fortune for meeting steering engine Precision that is dynamic, supporting needs, and has the characteristics that self-lubricating, without adding lubricant grease in using preceding and use；In corrosion resistance Energy aspect can pass through salt fog, damp and hot, mould environmental test (national military standard environmental test or U.S.'s DO160E standard)；It can be with steering engine Complete machine is stored 15 years；Wear-out life experiment examination can be swung by national military standard；It can bear heavy duty: due to the inner wall in bearing outer ring Upper setting groove, selflubricating liner, which is placed in, to be not easy to be extruded in groove, and is not in Axial Loads lower bearing inner ring Axial displacement.

Above embodiments are only for illustration of the utility model, rather than limitations of the present invention, related technical field Technical staff can also make various transformation or modification in the case where not departing from the spirit and scope of the utility model, because This all equivalent technical solution also should belong to the scope of the utility model, should be limited by each claim.

Claims

1. a kind of self-lubricating knuckle bearing for steering engine transmission mechanism, including bearing outer ring and the bearing being placed in bearing outer ring Inner ring, and the inner wall of the outer wall of bearing inner race and bearing outer ring is fitted close, which is characterized in that

A circle groove is opened up on the inner wall of the bearing outer ring, and a selflubricating liner, self-lubricating lining are inlayed in the groove Pad is by composite braided object and coated on composite braided object and thermoset resin layer corresponding with the outside wall surface of bearing inner race is constituted.

2. the self-lubricating knuckle bearing according to claim 1 for steering engine transmission mechanism, which is characterized in that described compound Braided fabric is interwoven by polytetrafluoroethylene fibre and glass fibre；The thermoset resin layer is novolac resin layer.

3. the self-lubricating knuckle bearing according to claim 1 or 2 for steering engine transmission mechanism, which is characterized in that described Composite braided object with a thickness of 0.3mm, the thermoset resin layer with a thickness of 0.2mm.

4. the self-lubricating knuckle bearing according to claim 1 for steering engine transmission mechanism, which is characterized in that described from profit Sliding liner is bonded in the groove of the bearing outer ring by glue.

5. the self-lubricating knuckle bearing according to claim 1 for steering engine transmission mechanism, which is characterized in that the bearing Inside and outside circle is all made of high carbon chromium stainless bearing steel, martensitic stain less steel or PH stainless steel.