RU1812340C - Lubrication system of bearing assembly of machine rotor - Google Patents

Abstract

Usage: in turbomachinery, in particular in the production of low-power electric drives and small-sized electric fans. SUMMARY OF THE INVENTION: A lubrication system comprises an annular oil cavity (P) formed by inner and outer shells. P is filled with fibrous material, the inner shell surrounds the shaft with the formation of a chamber in which the bearings and a spacer sleeve (DV) are located, which contacts the ends with the bearings. Slit grooves are made at the ends of the DV. The holes are made in the inner shell in the area of contact between the engine and the bearing. DV has an annular groove on the side surface, equipped with grooves that are filled with fibrous material. DW is made of material, vol. having through porosity. The lubrication system may comprise an ampoule filled with a liquid grease base. The ampoule is connected with the P channel with the wick located in it. 3 s.p. f-ly, 4 ill. (L

Description

The invention relates to the field of electrical engineering, to the production of low-power electric machines, including small-sized combined instrumentation electric fans.

The aim of the invention is to increase the durability and reliability of bearing assemblies of small-sized electric machines, including instrumentation electric fans. . In FIG. 1 shows a lubrication system for a bearing assembly integrated in an electric fan, longitudinal section; in FIG. 2 - lubrication system with a remote sleeve with fibrous material in the grooves; in FIG. 3-remote otolka with fibrous material in the grooves; in FIG. 4 - lubrication system with a spacer sleeve made of porous material.

By way of example, a specific embodiment is shown in FIG. 1 lubrication system of bearing assemblies of a compact instrument electric fan with grease, the liquid base of which has a small wetting angle,

The angular contact ball bearings 1 end faces tightly adjacent to the ends of the distance sleeve 2. Bearings T and distance sleeve 2 are placed on the working neck of the shaft 3. Bearing - peak chamber through holes 5 located in the sleeve against the slotted nodes 4 on the adjacent ends of the distance sleeve 2 is in communication with an annular closed cavity. through 6, formed by a bearing sleeve 9 h stztorovoy sleeve 10.

The annular cavity 6 contains a halofiber material filled with a liquid base

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(VNII NP-605 oil) grease (VNII NP-274) by means of a wick 7 and communicates with an ampoule 8 containing fibrous material and an additional volume of a liquid grease base. The liquid base of the lubricant from the annular cavity 6 through the holes 5 due to wetting turns: it enters the bearing chamber, into the mating zone of the ends of the bearing 1 and the sleeve 2. Through the slotted grooves 4, the liquid base of the lubricant penetrates the working area of the bearing. Slotted grooves 4 limit the amount of incoming liquid base lubricant, which in the initial period of operation may be excessive ..,

An embodiment of a lubrication system for an instrument small-sized electric fan with a large wetting angle of a liquid base is shown in Fig. 2; ;;, ;;; :

Radial ball bearings 1 are supported by the ends of the spacer sleeve 2 located on the working neck of the shaft 3. The spacer sleeve 2 has an annular groove. On the side surface and grooves on the end surfaces. The annular groove and grooves are filled with fibrous material 4, which at the end surfaces is in contact with the internal cavity of the bearing. ; f /.:; V :. ;; ;: -:: i - v.: -; : / K-: y-:: U

The liquid renewing the lubricant from the annular cavity 6 through the hole 5, through wetting, enters the fibrous material 4 of the spacer sleeve 2 and through it into the bearing T, the annular cavity through the wick 7 can be fed with a liquid base from the additional volume c; ympule - at

An embodiment of a lubrication system for bearings of an instrumented fan of increased durability is shown in FIG. 4. The bearings 1 are supported on the ends of a sleeve 2 having a through porosity and are located on the neck of the shaft 3.

The fluid base of the grease from the annular cavity b through the hole 5 enters the side surface of the sleeve 2, through the pores of which it penetrates into the working area of the bearing. The value of porosity limits the flow rate of the liquid base, - /, which lengthens the duration of the recharge.

Formula of the invention

Claims (3)

1. A lubrication system for a bearing assembly of a rotor of a machine comprising an annular oil cavity formed by an outer. and inner shells and filled with fiber-hard material, the last of which It covers the shaft with the formation of a chamber in which the bearings are located and has squyose holes communicating between the chamber and the wick, one end of which is placed in the oil cavity, so that, with the aim of increase durability and reliability low grease bearings WET ANGLE, CAMERA is equipped with a spacer sleeve in contact with both sides with their ends from the ShipniknaMH end, while slotted grooves are made on the end faces of the sleeve, and the holes in the inner shell are made in the contiguity area of the sleeve with the bearing. .... 2. The system according to claim 1, with the exception that, at increased wetting angles of the liquid base, the spacer sleeve, which is contacted on both sides by its ends with the bearings, has on the side the surface of the annular groove and grooves in communication with the groove, and the groove and grooves are filled with fibrous material; and the holes in the inner shell are made in the area of the annular groove of the sleeve. 3. The system of claims. 1 and 2, on the assumption that the spacer sleeve is made of a material having a through porosity. 4i System 1-3, characterized in that it further comprises at least one ampoule filled with a liquid grease base, which is in communication with the annular oil cavity by a channel with a wick placed in it. /: Editor Fig 4 Compiled by E. Silver Kov Tehred M. Morgenthal Corrector G. Kos