SU817354A1

SU817354A1 - Bearing assembly

Info

Publication number: SU817354A1
Application number: SU762393835A
Authority: SU
Inventors: Михаил Васильевич Прохоров
Original assignee: Предприятие П/Я Г-4128
Priority date: 1976-07-20
Filing date: 1976-07-20
Publication date: 1981-03-30

Description

(54) ПОДШИПНИКОВЫЙ УЗЕЛ(54) BEARING KNOT

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Изобретение относитс к подшипнйкостроению и может быть использованоThis invention relates to bearing construction and can be used.

ри изготовлении шарикоподшипников сin the manufacture of ball bearings with

низким уровнем шума и вибрации, приeHHeNBbJX в электрических машинах.low noise and vibration, eHHeNBbJX in electric cars.

.Известен подшипниковый узел, содержащий корпус с крьошкой и смонтироканные в нем шарикоподшипник , направл ющее кольцо и витые цилиндрические пружины, равномерно расположенные по окружности между крышкой и направл ющим кольцом 1.A bearing assembly is known, comprising a housing with a groove and a ball bearing mounted therein, a guide ring and twisted cylindrical springs evenly spaced circumferentially between the cover and the guide ring 1.

В известном подшипниковом узле при температурных поводках ротора и статора неизбежно перемещение плавающего подшипника относительно опорной поверхности. При этом в услови х вибрации .на подшипниках возникает опр9 кидывающий момент, который вследствие относительно небольшой длины наружного кольца подшипника может привести к защемлению тел качени .In the known bearing assembly with temperature leads of the rotor and stator, the floating bearing inevitably moves relative to the bearing surface. In this case, under conditions of vibration, a bearing moment arises, which, due to the relatively short length of the outer ring of the bearing, can lead to pinching of the rolling elements.

Цепь изобретени - увеличение долговечности подшипникового узла за счет стабилизации виброакустической характеристики шарикоподшипника.The chain of the invention is an increase in the durability of the bearing assembly due to the stabilization of the vibroacoustic characteristic of a ball bearing.

Указанна цель достигаетс тем, что в подшипниковом узле , содержащем корпус с крышкой и смонтированные в нем шарикоподшипник, направл ющее кольцо и витые цилиндрические пружины, равномерно расположенные по окружности между крынкой и направл ющим кольцом, жестко соединено с наружным кольцом шарикоподшипника , при этом Ширина направл ющего кольца не меньше ширины наружного кольца шарикоподшипника. Кроме того, витые цилиндрические пру0 жины установлены в гнездах, которые выполнены в крышке и в направл ющем кольце.This goal is achieved in that in a bearing assembly comprising a housing with a cover and a ball bearing mounted therein, a guide ring and twisted cylindrical springs evenly spaced circumferentially between the flap and the guide ring are rigidly connected to the outer ring of the ball bearing, while the width ring is not less than the width of the outer ring of the ball bearing. In addition, twisted cylindrical springs are installed in the sockets, which are made in the lid and in the guide ring.

На фиг. 1 показан подшипниковый узел, разрез; на фиг. 2 - разрез А-А FIG. 1 shows a bearing assembly; in fig. 2 - section aa

5 на фиг. 1.5 in FIG. one.

Подшипниковый узел содержит корпус 1 (подшипниковый щит) с крынкой 2, котора скреплена с корпусом болтами 3. В коретусе смонтированы шарикопод0 шипник 4, вл ющийс опорой вала 5, направл ницее кольце 6 и витые цилиндрические пружины 7, которые равномерно расположены по окружности между крышкой и направл ющим кольцом. The bearing assembly includes a housing 1 (bearing shield) with a flap 2, which is bolted to the housing. 3. A ball bearing 10 of the horn 4, which supports the shaft 5, the direction of the ring 6 and twisted cylindrical springs 7, which are evenly circumferentially lined and guide ring.

Claims

5 In the wing and the guide ring there are ring grooves with sockets 8 formed on the bottom. Sockets 8 are equipped with twisted cylindrical springs. Between the inner wing 9 of the housing 1 and the ball bearing 4 there is a gap 10, and between the wing 2 and the guide ring 6 there is a gap 11. These clearances are necessary for the axial movement of the ball bearing and the direction of the crown ring. The latter are rigidly fastened together, for example, by means of glue. The width of the guide ring is not less than the width of the outer ring of the ball bearing. The device operates as follows. In operation, when the length of the rotor and the stator changes, due to the temperature lead, the floating bearing 4, together with the guide ring b, rigidly connected with it, moves in the housing 1 relative to the supporting surface. The resulting friction moment tends to turn the outer ring of the ball bearing relative to the support surface at a certain angle, limited by the transverse rigidity of the springs 7. The increase in the support surface of the outer ring of the ball bearing due to its rigid connection with the guide ring prevents the tilting moment. The proposed arrangement of the springs provides an elastic connection between the cap and the outer ring of the ball bearing that rotates at a certain angle, which excludes the single-point fatigue wear of the ball bearing groove. The proposed implementation of the bearing unit stabilizes vibroacoustic characteristic of a ball bearing, which leads to an increase in the durability of the bearing unit as a whole. Claims of the invention A bearing assembly comprising a housing and a ball bearing mounted therein, a guide ring and helical cylindrical springs evenly spaced circumferentially between the pot and the guide ring, characterized in that, in order to increase durability, the ball bearing guide ring is rigidly connected the outer ring, and the springs in the gate and the guide ring are installed in the sockets, while the width of the guide ring is not less than the width of the outer ring of the ball bearing. Sources of information taken into account in the examination 1. French patent 478141, cl. 47c, 12, pub. 1915.