CN209228885U - Bearing seal coil structures - Google Patents

Abstract

The utility model provides a kind of bearing seal coil structures, sealing ring includes the first skeleton and the second skeleton that section is " L " type, first skeleton includes the first vertical edges and first level side, second skeleton includes the second vertical edges and the second horizontal sides, the first sealing lip is extended with to the first vertical edges in second vertical edges, first sealing lip split settings have the first lip and the second lip contradicted with the first vertical edges, the second sealing lip is extended with to the second vertical edges in first vertical edges, second sealing lip split settings have the third lip and the 4th lip contradicted with the second vertical edges, the sealing element being fixedly connected with the second vertical edges is provided in second vertical edges, sealing element includes the first sealing strip and the second sealing strip, first sealing strip and first level side contradict, second sealing strip is contradicted to extension on the outside of bearing inner race and on the outside of bearing inner race , the utility model effectively raises the sealing performance of bearing, preferably improves the working efficiency and service life of bearing.

Description

Bearing seal coil structures

Technical field

The utility model relates to a kind of biserial conical bearing, especially a kind of bearing seal coil structures.

Background technique

Double row tapered roller bearing applies in general on the medium-and-large-sized mechanical equipment such as automobile, metallurgy, electrical, double row tapered roller Sub- bearing is mainly subject to radial bearing capacity and the unidirectional axial bearing capacity of fraction, and double-row conical in the prior art is being tied On structure, roller end face and rib slide each other while bearing loading force, thus it is bigger than Friction Moment of Ball Bearings, and Friction Moment of Tapered Roller Bearings generate be mainly inner ring, roller, retainer rotation generate lubricant grease stirring resistance and The sliding-frictional resistance of inner ring rib and roller end face, and double row tapered roller bearing used in automobile present in the prior art It is only carried out using outer skeleton and dustproof cover dust-proof, so that bearing is easy to oxidize and external sundries is easy intrusion, bearing is caused to make With service life reduction, and lubricant grease exertion force is big, and the utility model on the basis of changing sealing ring not to Bearing inner into Row changes, so that the moment of friction of the good situation lower bearing of bearing seal performance reduces, and grease consumption is dropped It is low, improve bearing service life.

Utility model content

The utility model provides a kind of bearing seal coil structures, to solve prior art sealing ring tightness energy generally and leading The problem of causing bearing frictional torque to become larger, while solving the stirring resistance for reducing the lubricant grease generated when Bearing inner operating The problem of.

A kind of bearing seal coil structures, the sealing ring include the first skeleton for being connect with bearing inner race and for Second skeleton of bearing outer ring connection, first skeleton and the second skeleton section are " L " type, and first skeleton is close to rolling Son setting, first skeleton include the first vertical edges and first level side, and second skeleton includes the second vertical edges and the Two horizontal sides, first vertical edges are arranged towards the second vertical edges, and the first level side is arranged towards the second horizontal sides, institute It states the first skeleton and the second skeleton combines to form labyrinth chamber, first skeleton and the second skeleton junction are provided with for making axis The through-hole with labyrinth chamber conducting is held, is extended with the first sealing lip to the first vertical edges in second vertical edges, described first is close Envelope lip split settings have the first lip and the second lip, and first lip and the second lip and the first vertical edges contradict, described It is extended with the second sealing lip to the second vertical edges in first vertical edges, the second sealing lip split settings have third lip and Four lips, the third lip and the 4th lip and the second vertical edges contradict, and are provided with sealing element in second vertical edges, institute It states sealing element to be fixedly connected with the second vertical edges, the sealing element includes the first sealing strip and the second sealing strip, and described first is close Strip of paper used for sealing and first level side contradict, and second sealing strip is contradicted to extension on the outside of bearing inner race and on the outside of bearing inner race.

By adopting the above technical scheme it is beneficial that: " L " type skeleton combination be caught between bearing inner race and outer ring so that inner ring Sealing and the setting of labyrinth chamber, can effectively prevent the sundries such as dust, liquid from invading between outer ring, moreover, the first sealing The interference fit of lip and the first vertical edges interference fit and the second sealing lip and the second vertical edges, enables sealing ring tightness Bigger promotion, the setting of sealing element can effectively improve the sealing performance of sealing ring, reduce sundries intrusion bearing and make to bearing At the probability of damage, meanwhile, there are a guide holes between skeleton, and in bearing operation, the grease of Bearing inner can be imported into In cavity, so that extra grease will not influence the rotation of bearing, bearing working efficiency is improved, structure as sealing ring is set It sets, it is possible to reduce the moment of friction that bearing operation generates is influenced by the stirring resistance of lubricant grease, when reducing bearing operation Moment of friction so that grease consumption reduce, improve bearing life.

The utility model is further arranged: first vertical edges include tilted block, and the tilted block setting is hung down first Straight flange top, the tilted block are located at below guide hole, and the inclined surface of the tilted block is arranged towards the second vertical edges.

By adopting the above technical scheme it is beneficial that: tilted block is obliquely installed along the first vertical edges to first level edge direction, The setting of tilted block flows into Bearing inner excess oil in labyrinth chamber, and grease can pass through when flowing into labyrinth chamber The inclined surface of tilted block flows into grease along the first vertical edges, reduces frictional influence of first sealing lip to the first vertical edges, The frictional resistance for reducing by the first skeleton improves bearing working efficiency, meanwhile, avoid friction of first skeleton in bearing rotation Damage, improves the service life of sealing ring.

The utility model is further arranged: first vertical edges outer end is provided with oil-guiding block, and the oil-guiding block is along first Vertical edges are obliquely installed to first level edge direction.

By adopting the above technical scheme it is beneficial that: oil-guiding block is obliquely installed along the first vertical edges to the second horizontal edge direction, In bearing rotation, lubricant grease is flowed out out of labyrinth chamber, can be flowed along oil-guiding block to inner ring direction, so that bearing inner race exists When work, the frictional dissipation of bearing inner race is reduced, improves the service efficiency of bearing, and extra grease can be produced when bearing rotates Raw the phenomenon that throwing rouge, can flow on bearing inner race, without resting on first when grease throws winged from oil-guiding block inclined-plane On the outer wall of vertical edges, the working efficiency of bearing is improved.

Detailed description of the invention

Fig. 1 is biserial conical bearing sealing ring partial structural diagram；

Fig. 2 is biserial conical bearing sealing ring overall structure diagram.

Specific embodiment

A kind of bearing seal coil structures, the sealing ring include the first skeleton 1 for connecting with bearing inner race and are used for The second skeleton 2 connecting with bearing outer ring, first skeleton 1 and 2 section of the second skeleton are " L " type, first skeleton 1 It is arranged close to roller, first skeleton 1 includes the first vertical edges 11 and first level side 12, and second skeleton 2 includes the Two vertical edges 21 and the second horizontal sides 22, first vertical edges 11 are arranged towards the second vertical edges 21, the first level side 12 are arranged towards the second horizontal sides 22, and first skeleton 1 and the combination of the second skeleton 2 form labyrinth chamber 3, first skeleton 1 Second skeleton, 2 junction is provided with the through-hole 31 for bearing and labyrinth chamber 3 to be connected, to the in second vertical edges 21 One vertical edges 11 are extended with the first sealing lip 41, and 4 split settings of the first sealing lip have the first lip 41 and the second lip 42, First lip 41 and the second lip 42 and the first vertical edges 11 contradict, to the second vertical edges 21 in first vertical edges 11 It is extended with the second sealing lip 5,5 split settings of the second sealing lip have third lip 51 and the 4th lip 52, the third lip Mouth 51 and the 4th lip 52 and the second vertical edges 21 contradict, and are provided with sealing element 6, the sealing element in second vertical edges 21 6 are fixedly connected with the second vertical edges 21, and the sealing element 6 includes the first sealing strip 61 and the second sealing strip 62, and described first is close Strip of paper used for sealing 61 and first level side 12 contradict, and second sealing strip 62 is supported to extension on the outside of bearing inner race and with bearing inner race outside Touching, first vertical edges 11 include tilted block 7, and the tilted block 7 is arranged in 11 top of the first vertical edges, the tilted block 7 Below guide hole, the inclined surface of the tilted block 7 is arranged towards the second vertical edges 21,11 outer end of the first vertical edges setting There is oil-guiding block 8, the oil-guiding block 8 is obliquely installed along the first vertical edges 11 to 12 direction of first level side.

Sealing ring is caught between bearing inner race and outer ring, the first vertical edges 11 are bonded with inner ring end face, the second vertical edges 21 are bonded with cycle surface, and the first lip 41 and the second lip 42 and the first vertical edges 11 are inconsistent, third lip 51 and the 4th Lip 52 and the second vertical edges 21 contradict, and the second sealing strip 62 is contradicted on the outside of bearing inner race, in bearing operation, extra profit Lubricating oil rouge is thrown in Bearing inner to fly, and most grease flow to bearing inner race row by the guidance of oil-guiding block 8, and fraction grease passes through Guide hole enters inside labyrinth chamber 3, and lubricant grease is flow on the inner wall of the first vertical edges 11 by the inclined surface of tilted block 7, 11 inner wall of the first vertical edges is lubricated, when so that the first lip 41 and the second lip 42 and the first vertical edges 11 contradicting, reduces and contradicts The friction of generation.

The advantages of basic principles and main features and the utility model of the utility model have been shown and described above, current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention, the utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims (3)

1. a kind of bearing seal coil structures, it is characterised in that: the sealing ring includes the first bone for connecting with bearing inner race Frame and the second skeleton for connecting with bearing outer ring, first skeleton and the second skeleton section are " L " type, and described first Skeleton is arranged close to roller, and first skeleton includes the first vertical edges and first level side, and second skeleton includes second Vertical edges and the second horizontal sides, first vertical edges are arranged towards the second vertical edges, the second water of the first level side direction Pingbian setting, first skeleton and the second skeleton combine to form labyrinth chamber, and first skeleton and the second skeleton junction are set It is equipped with the through-hole for bearing and labyrinth chamber to be connected, is extended with the first sealing to the first vertical edges in second vertical edges Lip, the first sealing lip split settings have the first lip and the second lip, and first lip and the second lip and first hang down Straight flange contradicts, and is extended with the second sealing lip, the second sealing lip split settings to the second vertical edges in first vertical edges There are third lip and the 4th lip, the third lip and the 4th lip and the second vertical edges contradict, in second vertical edges It is provided with sealing element, the sealing element is fixedly connected with the second vertical edges, and the sealing element includes that the first sealing strip and second are close Strip of paper used for sealing, first sealing strip and first level side contradict, and second sealing strip extends to bearing inner race outside and and bearing It is contradicted on the outside of inner ring.

2. a kind of bearing seal coil structures according to claim 1, it is characterised in that: first vertical edges include inclination Block, the tilted block are arranged on the first vertical edges top, and the tilted block is located at below guide hole, the inclined surface court of the tilted block It is arranged to the second vertical edges.

3. a kind of bearing seal coil structures according to claim 1, it is characterised in that: the setting of first vertical edges outer end There is oil-guiding block, the oil-guiding block is obliquely installed along the first vertical edges to first level edge direction.