CN207893133U

CN207893133U - Waterproof grommet for bearing

Info

Publication number: CN207893133U
Application number: CN201721927393.6U
Authority: CN
Inventors: 吴林强
Original assignee: WUXI HUAYANG ROILING BEARING CO Ltd
Current assignee: WUXI HUAYANG ROILING BEARING CO Ltd
Priority date: 2017-12-31
Filing date: 2017-12-31
Publication date: 2018-09-21
Anticipated expiration: 2027-12-31

Abstract

The utility model is related to a kind of sealing rings, especially refer to a kind of waterproof grommet for bearing in fact.According to technical solution provided by the utility model, the waterproof grommet for bearing includes the first outer lip and the second outer lip positioned at sealing ring outer rim, and the first epipharynx positioned at sealing ring inner edge, the second epipharynx, third epipharynx, the 4th epipharynx；The first groove is formed between first outer lip and the second outer lip；The second groove is formed between first epipharynx and the second epipharynx, and third groove is formed between the second epipharynx and third epipharynx；4th epipharynx is directed toward the axial direction of sealing ring.The utility model is to solve the problems, such as waterproof and dustproof, water-impervious, the anti-overflow fat of bearing in use.

Description

Waterproof grommet for bearing

Technical field

The utility model is related to a kind of sealing rings, especially refer to a kind of waterproof grommet for bearing in fact.

Background technology

Global warming, southern area city rainy season waterlogging increase, and enter energy for the anti-foreign matter of family car bearing The promotion of power claims, currently known bearing in use, due to bearing when rotated lubricating grease be extruded into outside, and Bearing really rotates in the case of unlubricated fat, so the service life of bearing substantially reduces；Since bearing is using Environment is different, and external water, grease, foreign matter penetrate into Bearing inner, keeps bearing grease rotten or, into impurity, leads to bearing Service life substantially reduces, and lubricating grease is extruded into order to overcome the problems, such as bearing in rotation water, grease, the foreign matter in outside and portion Bearing inner is penetrated into, the utility model patent carries out innovative design to bearing seal structure, by pressure conversion, with fluid motion The method of characteristic makes the lubricating grease in bearing squeeze less than outside, while the water in outside, grease, foreign matter do not enter inside bearing yet.

Invention content

The utility model aim is to provide a kind of waterproof grommet for bearing, to solve bearing in use Waterproof and dustproof, water-impervious, anti-overflow fat the problem of, especially under the premise of not changing primitive axis and holding dimensional accuracy, can reach The effect of water, dust-proof, water-impervious, anti-overflow fat.

According to technical solution provided by the utility model, the waterproof grommet for bearing, including it is located at sealing ring The first outer lip and the second outer lip of outer rim, and the first epipharynx positioned at sealing ring inner edge, the second epipharynx, third epipharynx, in the 4th Lip；The first groove is formed between first outer lip and the second outer lip；The second groove, the second epipharynx are formed between first epipharynx and the second epipharynx Third groove is formed between third epipharynx；4th epipharynx is directed toward the axial direction of sealing ring.

First outer lip, the second outer lip, the first epipharynx, the second epipharynx and third epipharynx are pointed generally in the radial direction of sealing ring.

The waterproof grommet, it is characterised in that the bearing seal coil structures are an integral molding structure.

The waterproof grommet of the utility model, first outer lip of Y-shaped design is by external dust, water, grease, sundries When pressure, one reaction force of lip is passed to, so that lip is contacted with bearing outer ring contact surface closer, the more presses the more tight, is ensured Sealing performance；Prevent external water, grease from entering Bearing inner from outer ring；Second outer lip of Y " shapes design is mounted in bearing outer ring In Special seal slot on disc, it is interference fitted with seal groove, ensure that firmly installing for sealing ring, while preventing Bearing inner Grease overflow；" hand " shape design the first epipharynx by external dust, water, grease, sundries pressure when, pass to lip one A reaction force makes lip be contacted with bearing outer ring contact surface closer, the more presses the more tight, ensures sealing performance；Prevent external water, Grease enters Bearing inner from inner ring；Second epipharynx prevent Bearing inner grease overflow bearing, third epipharynx further pre- waterproof, Oil impurity, dust enter Bearing inner, and third epipharynx prevents Bearing inner grease from overflowing bearing, control bearing internal grease fortune Dynamic direction, makes grease be moved toward Bearing inner, forms greasing cycle, avoids grease from moving out, prevent grease from overflowing.

Description of the drawings

Fig. 1 is the cross-sectional view of the utility model.

Fig. 2 is the outer ring and sealing ring contact structures partial enlarged view of the utility model.

Fig. 3 is the inner ring and sealing ring contact structures partial enlarged view of the utility model.

Specific implementation mode

The utility model is described in further detail with specific implementation mode below in conjunction with the accompanying drawings：

As shown in Fig. 1, the utility model waterproof grommet using high resiliency, low friction rubber material integral production at Type includes the first outer lip 1 and the second outer lip 2 positioned at sealing ring outer rim, and the first epipharynx 3, second positioned at sealing ring inner edge Epipharynx 4, third epipharynx 5, the 4th epipharynx 6；The first groove is formed between first outer lip 1 and the second outer lip 2；First epipharynx 3 and second The second groove is formed between epipharynx 4, and third groove is formed between the second epipharynx 4 and third epipharynx 5；4th epipharynx 6 is directed toward sealing ring It is axial.

First outer lip 1, the second outer lip 2, the first epipharynx 3, the second epipharynx 4 and third epipharynx 5 are pointed generally in the diameter of sealing ring To.First outer lip 1 of Y " shapes design by external dust, water, grease, sundries pressure when, it is anti-to pass to the first outer lip 1 one Active force makes the first outer lip 1 be contacted with bearing outer ring contact surface closer, the more presses the more tight, ensures sealing performance；Prevent outside Water, grease enter Bearing inner from outer ring；Second outer lip 2 of Y " shapes design is mounted on the Special seal on bearing outer ring inner headed face In slot, it is interference fitted with seal groove, ensure that firmly installing for sealing ring, while preventing the grease of Bearing inner from overflowing；" hand " First epipharynx 3 of shape design by external dust, water, grease, sundries pressure when, pass to that one, 3 side of the first epipharynx is anti-to be made Firmly, so that the first epipharynx 3 is contacted with bearing outer ring contact surface closer, the more press the more tight, ensure sealing performance；Prevent external water, Grease enters Bearing inner from inner ring；Second epipharynx 4 prevents Bearing inner grease from overflowing bearing, and third epipharynx 5 further prevents Water, oil impurity, dust enter Bearing inner, and the 4th epipharynx 6 prevents Bearing inner grease from overflowing bearing, controls bearing interior oil The fat direction of motion makes grease be moved toward Bearing inner, forms greasing cycle, avoids grease from moving out, prevent grease from overflowing.

It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model Member can carry out various changes and amendments without departing from the scope of the technological thought of the present invention' completely.This invention Technical scope is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.

Claims

Include the first outer lip positioned at sealing ring outer rim 1. for the waterproof grommet of bearing（1）With the second outer lip（2）And position The first epipharynx in sealing ring inner edge（3）, the second epipharynx（4）, third epipharynx（5）, the 4th epipharynx（6）；First outer lip（1）With Two outer lips（2）Between form the first groove；First epipharynx（3）With the second epipharynx（4）Between form the second groove, the second epipharynx（4）With Third epipharynx（5）Between formed third groove；4th epipharynx（6）It is directed toward the axial direction of sealing ring.
2. it is used for the waterproof grommet of bearing as described in claim 1, it is characterized in that：First outer lip（1）, the second outer lip（2）, One epipharynx（3）, the second epipharynx（4）And third epipharynx（5）It is pointed generally in the radial direction of sealing ring.
3. it is used for the waterproof grommet of bearing as described in claim 1, it is characterized in that：The waterproof sealing coil structures are integrated Molding structure.