CN2697376Y

CN2697376Y - Seal cover for rotary disk bearing

Info

Publication number: CN2697376Y
Application number: CN 200420010778
Authority: CN
Inventors: 马新志; 周琳; 孙红原; 苏兆力
Original assignee: LUOYANG BEARING GROUP CO Ltd
Current assignee: LUOYANG BEARING GROUP CO Ltd
Priority date: 2004-04-30
Filing date: 2004-04-30
Publication date: 2005-05-04
Anticipated expiration: 2014-04-30

Abstract

The utility model provides a sealed cover for a rotary disk bearing, which is composed of an annular end cover and a sleeve barrel (6), wherein, the annular end cover is used for sealing clearances of an inner ring and an outer ring of the bearing, and the sleeve barrel (6) is positioned in the inner ring of the bearing and matched with a clearance of the inner ring; the sleeve barrel is arranged under an inner annular hole of the end cover, the upper part of the sleeve barrel is connected with the annular end cover into a whole, and the outer edge of the end cover is fixed to the outer ring (2) of the bearing. The clearances of the inner ring and the outer ring are completely covered by a cover body provided by the utility model, and the cover body keeps a certain distance from the inner diameter of the inner ring; when liquid flows down from the position above the bearing and flows outside the inner ring of the bearing along the sealed cover, so the clearances between the inner ring and the outer ring are sealed, the utility model ensures that liquid can not enter the bearing, and the problem that the invalidation of the bearing is caused by the liquid is avoided; meanwhile, the utility model has a certain sealed effect on granulated impurities, such as dust, etc. The material of the sealed cover can use stainless steel to prevent corrosion, so sealed effect is increased, and service life is extended; the sealed cover does not need to be replaced in the course of the operation of the bearing. The seal of the dust is realized by a rubber seal, and the leakage of lubricant grease can be reduced.

Description

The turntable bearing seal closure

Affiliated technical field

The utility model belongs to a kind of seal arrangement of bearing, and what relate generally to is a kind of turntable bearing seal closure.

Background technique

At present, the sealing that turntable bearing uses all is rubber seal basically, individual other uses the felt sealing, but on sealability, because rubber seal is a kind of compacting elasticity lip seal, it embeds in the seal groove of a lasso, sealing lip is pressed on another ring face and uses, to the good sealing effect of dust, particulate contamination, have that liquid often flows through, the easy environment of ponding but run into, sealing effect is just very poor.If strengthen the sealing lip rolling reduction in order to improve waterproofing effect, the result causes seal lip acutely to lose efficacy in advance because of wearing and tearing often; The felt sealing is the outer cylinder surface that felt is embedded inner ring, and the felt another side is pressed on the inner periphery of outer ring, after felt uses a period of time, can follow the string, the gap occurs between felt face and relative lasso, change also inconvenient, and also very bad the sealing effect of water.

Summary of the invention

The purpose of this utility model is to propose a kind of turntable bearing seal closure, and it can effectively prevent the intrusion of ponding, greasy dirt and other liquid, makes easy.

For achieving the above object, the technological scheme that the utility model is taked is: at seal closure of the outside increase of the rubber seal of turntable bearing, it is by in order to the annular end cap on stuffing box bearing inner ring top and be positioned at bearing inner race and constitute with the sleeve of inner ring Spielpassung, sleeve is positioned at the below of annular end cap annular distance, and connect as one with end cap, the outer rim of end cap and the outer ring of bearing are fixed.

Above-mentioned cover body covers the gap between the Internal and external cycle fully, and keep certain distance with the inner ring internal diameter, when liquid flows down above bearing, outside seal closure flows to the inner ring of bearing, thereby complete closed the gap between inner ring, the outer ring, guarantee that liquid that can not enters and causes bearing failure from this, also has certain sealing effect to particulate contamination such as dusts simultaneously.The material of seal closure can select for use stainless steel to prevent corrosion, to improve the effect that seals and to increase the service life, in the bearing using process, needn't change seal closure.Sealing to dust is realized by rubber seal, and can reduce the leakage loss of lubricant grease.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model.

Accompanying drawing 2 is the plan view of Fig. 1.

Accompanying drawing 3 is positioned at structural representation on the turntable bearing for the utility model.

Among the figure, 1, end cover, 2, the turntable bearing outer ring, 3, the turntable bearing inner ring, 4, screw, 5, rubber seal, 6, sleeve.

Embodiment

In conjunction with the accompanying drawings, it is as follows to provide embodiment of the present utility model:

As shown in the figure, the utility model mainly is made of end cover 1 and the seal sleeve 6 that is positioned at bearing inner race, and end cap 1 is a ring, is positioned at the top of bearing inner race, is used for the gap between the stuffing box bearing Internal and external cycle.Sleeve 6 is positioned at the below of annular end cap annular distance, and connect as one with end cap 1, the diameter of sleeve 6 is identical with the interior annular aperture of end cap 1, end cap 1 outer rim is fixed on the bearing outer ring 2 by screw 4, end cap 1 and sleeve 6 cover the gap between the bearing enclose fully, and keep the 2-3mm distance with inner ring 3 internal diameters outside.Extraneous ponding keeps off sealed cover outside bearing fully, and rubber seal 5 is still adopted in seal closure inside, strengthening the sealing effect to dust etc., and eliminates the leakage loss of lubricant oil.The material selection stainless steel of seal closure also can be taked other steel plates to the environment that corrosivity is not strong, and the manufacturing of large sealing cover can be taked the mode of segmentation welding, and the size of seal closure is decided according to lasso, should guarantee can not interfere with any object on the lasso.

Claims

1, a kind of turntable bearing seal closure, it is characterized in that: it is by the annular end cap that is used for stuffing box bearing Internal and external cycle gap (1) and be positioned at bearing inner race and constitute with the sleeve (6) of inner ring Spielpassung, sleeve (6) is positioned at the below of end cap annular distance, the top and the annular end cap of sleeve (6) connect as one, and the outer ring (2) of the outer rim of end cap (1) and bearing is fixing.