SU1046550A1 - Sliding bearing assembly - Google Patents

Description

4 05

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The invention relates to mechanical engineering and can be used in electric machines.

A slide bearing with circulating lubricant is known, comprising a housing and an insert, on the inner surface of which a groove is made communicating with a source of lubricant. When the machine is working, the lubricant comes from the cavity to the slit surfaces of the liner and shaft lubricates and cools them, then through the existing gap between the inner surface of the liner and the shaft of the heated lubricant enters the drain chamber, the heat loss from the friction zone Cl

However, the amount of lubricant flowing through the gap between the liner and the shaft is not enough to completely remove heat from the friction zone.

The purpose of the invention is to improve cooling and simplify the design of the slide bearing.

The goal is achieved by the fact that on the outer surface of the liner there are annular grooves connected through openings to the supply chamber, see, in order to improve the outflow conditions of the lubricant, annular linings may be located on the outer liner, overlapping the annular grooves.

The drawing shows the proposed support, the cut.

The slide bearing consists of body 1, liner 2 and labyrinth seals 3 and k. The insert 2 on the inner surface has a chamber 5 for supplying lubricant to improve 65502

. The lubricant inlet holes through the opening 6. The annular grooves 7, made on the outer surface of the liner, are connected to the chamber 5 supplying lubricants 5 to the openings 8. The annular grooves 7 are covered with overlays 9. The lubricant entering the chamber 5 through the opening 6 is divided into two flow: one passes to drain through

10 the gap between the inner surface of the liner 2 and the shaft 10, and the other through the holes 8 and the annular ditches. Ki 7 passes to the discharge of the support.

The advantage of the proposed support

15 as compared with the known one, the increased efficiency of removing heat losses due to the significantly developed contact area of the lubricant with the liner makes it possible to significantly increase the load on the bearings and simplify the whole design and lubrication system of the bearings of electric machines.

25 At the same time, it should be noted that the creation of additional grooves for the supply of lubricant to the outer surfaces of the L slide bearing provides an opportunity to significantly increase

30 the amount of lubricant flowing through the slide bearing with a significantly increased cooling area of the bearing with a bearing and with a minimum clearance in the bearing. Besides

An increase or a change in the amount of lubricant supplied to the slide bearing does not violate the conditions for the entry of lubricant to the sliding surfaces of the slide bearing and shaft. The cooling efficiency is greater, the more grease is drained through the grooves.

Claims (2)

1. SLIDING support with circulating lubricant, comprising, installed in the housing and covering the shaft journal, an insert with an annular groove on the inner surface forming a lubricant supply chamber communicating with the lubricant supply source to the shaft surface, characterized in that, in order to improve cooling and to simplify the design, annular grooves are made on the outer surface of the liner, connected by means of holes to the lubrication supply chamber. 2. Slide support along π. 1, characterized in that, in order to improve the outflow of lubrication conditions, it is provided with annular tabs arranged on the outer surface of the liner _and overlying annular groove. ® ω >