SU1227838A1 - Plain bearing - Google Patents

Description

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The invention relates to mechanical engineering and can be used in all sectors of the national economy, where lubricated bearings are used.

The aim of the invention is to increase the reliability

Figure 1 shows the bearing, cross section; figure 2 is the same longitudinal section.

The sliding bearing consists of a housing 1, in which a liner 2 is installed coaxially with a gap, made of an anti-friction material. in contact with housing 1

The housing 1, the liner 2 and the protrusions 3-6 form a lubrication chamber 7 connected to the friction surface 8 via a non-return valve 9. The liner 2 is kept from axial displacement by the claws 10 and 11 fixed to the housing 1. The chamber 7 is filled with lubricant - buttermilk 12.

The device works as follows.

The moment of force of friction arising in the course of operation of the bearing tends

278382

turn the insert 2 relative to the housing 1. In this case, the protrusions 3 and 4, acting on the lubricant, create pressure in the closed cavity 7 proportional to the arising moment of the frictional force “If there is no lubricant on the surface B of the friction or when the lubricant is contaminated, training shaft

To the bearing, as a result of which it becomes possible to turn the liner 2 relative to the housing 1, with this, the pressure in chamber 7 increases and when the pressure reaches the established limit on the surface 8 of the friction, a portion of lubricant flows through the check valve 9. Lubrication, falling on the surface of friction, reduces the magnitude of the moment of friction forces, while reducing pressure in ka20

measure

The expired lubrication update mode does not depend on the ambient temperature (associated with the absence or contamination of lubricant on the friction surface), which significantly increases the reliability of the sliding bearings.

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YU

Editor A.Dolinich

Compiled by V.Gorodnichev

Tehred V.KadarKorrektor I.Erdeyi

Order 2274/36 Circulation 777 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d, 4/5

Production and printing company, Uzhgorod, st. Design,

Claims (1)

A SLIDING BEARING, comprising a housing with a liner installed in it, a lubrication chamber communicating with a friction zone through an opening, characterized in that, in order to increase reliability, it is equipped with a check valve located in the said hole, the housing and the liner are made in the form of a coaxial located cylinders installed one relative to the other with a gap and the possibility of rotation, a lubricant chamber is placed between the cylinders, the outer surface of the liner and the inner surface of the housing are made with longitudinal by protrusions located in said chamber, wherein an opening communicating the lubrication chamber with the friction zone is located <g in front of the liner protrusion. FIG. 1 SU „.1227838 A1 I