CN209115540U - A kind of end face has the bearing of dustproof gasket - Google Patents

Abstract

The utility model discloses the bearings that a kind of end face has dustproof gasket, including bearing inner race, bearing outer ring and rolling element, the rolling element is arranged between the bearing inner race and bearing outer ring, the rolling element two sides are provided with sealing structure, dustproof gasket is provided on the end face of the bearing inner race, the end face of the dustproof gasket and the bearing inner race is fully welded together.By the way that dustproof gasket is arranged on the end face of bearing inner race, and the end face of dustproof gasket and bearing inner race is fully welded together, is more efficiently prevented from the inside that dust enters bearing from the junction of dustproof gasket and bearing inner race, is extended the service life of bearing.

Description

A kind of end face has the bearing of dustproof gasket

Technical field

The utility model relates to bearing seal technical field, in particular to a kind of end face has the bearing of dustproof gasket.

Background technique

Bearing (Bearing) is a kind of important spare part in contemporary mechanical equipment.Its major function is the mechanical rotation of support Swivel, reduces the coefficient of friction in its motion process, and guarantee its rotating accuracy.

For bearing when running at high speed, the position of dustproof groove and the sealing ring being arranged in inside dustproof groove can have opposite fortune It is dynamic, cause to generate gap between sealing ring and dustproof groove.Bearing outer dust enters Bearing inner by this gap, leads to axis Holding the service life shortens or bearing damage, influences the use of bearing.

In conclusion how to prevent during bearing operation, external dust passes through between sealing ring and dustproof groove Gap enters Bearing inner, becomes those skilled in the art's technical problem urgently to be resolved.

Utility model content

In view of this, the present invention provides the bearings that a kind of end face has dustproof gasket, to effectively prevent in bearing During operating, external dust enters Bearing inner by the gap between sealing ring and dustproof groove.

To achieve the above object, the utility model provides the following technical solutions:

A kind of end face has the bearing of dustproof gasket, including bearing inner race, bearing outer ring and rolling element, the rolling element are set It sets between the bearing inner race and bearing outer ring, the rolling element two sides are provided with sealing structure, the end of the bearing inner race Dustproof gasket is provided on face, the end face of the dustproof gasket and the bearing inner race is fully welded together.

Preferably, the dustproof gasket is circular ring metal piece, and the outer diameter of the sheet metal is less than the bearing outer ring Internal diameter, greater than the outer diameter of the bearing inner race, the internal diameter of the sheet metal is less than the outer diameter of the bearing inner race, is greater than the axis Hold the internal diameter of inner ring.

Preferably, the dustproof gasket is welded on the bearing inner race on extraneous end face.

Preferably, the sealing structure includes dustproof groove and the sealing ring that is arranged in the dustproof groove, the sealing ring Inner ring on be provided with support lip and dustproof lip, the support lip be arranged close to the rolling body position.

Preferably, the cross sectional shape of the dustproof groove is trapezoidal, the height of the side of the trapezoidal close rolling element Greater than the height of the side far from the rolling element.

Preferably, there are two the dustproof lip settings.

Preferably, the dustproof gasket is fully welded by laser and is welded together with the end face of the bearing inner race.

Preferably, the sealing ring is nitrile rubber sealing ring.

It can be seen from the above technical proposal that a kind of end face provided by the utility model has the bearing of dustproof gasket, lead to It crosses on the end face of bearing inner race and dustproof gasket is set, dustproof gasket is used to stop the direct impact of dust in external environment, and And the sealing structure in dustproof gasket and bearing forms combination sealing, more efficiently prevent from dust from the gap of sealing structure into Enter Bearing inner.Wherein, the end face of dustproof gasket and bearing inner race is fully welded together, prevents dust out of dustproof gasket and bearing The junction of circle enters the inside of bearing, extends the service life of bearing.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is a kind of structural schematic diagram for angle that the end face of the utility model has the bearing of dustproof gasket；

Fig. 2 is the axial schematic cross-sectional view that the end face of the utility model has the bearing of dustproof gasket；

Fig. 3 is the axial schematic cross-sectional view of the bearing of the utility model；

Fig. 4 is the portion the A enlarged structure schematic diagram in Fig. 3.

1, bearing, 11, bearing outer ring, 12, bearing inner race, 13, rolling element, 14, retainer, 15, sealing structure, 151, anti- Dirt slot, 152, sealing ring, 1521, support lip, 1522, dustproof lip, 2, dustproof gasket.

Specific embodiment

The utility model discloses the bearings that a kind of end face has dustproof gasket, to effectively prevent the process in bearing operation In, external dust enters Bearing inner by the gap between sealing ring and dustproof groove.

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

It please refers to shown in Fig. 1-Fig. 3, the utility model discloses the bearings that a kind of end face has dustproof gasket, including bearing Inner ring 12, bearing outer ring 11 and rolling element 13, rolling element 13 is arranged between bearing inner race 12 and bearing outer ring 11, and rolling element Retainer 14 is provided on 13,13 two sides of rolling element are provided with sealing structure 15, are provided on the end face of bearing inner race 12 dust-proof The end face of gasket 2, dustproof gasket 2 and bearing inner race 12 is fully welded together.It is dust-proof by being arranged on the end face of bearing inner race 12 Gasket 2, dustproof gasket 2 are used to stop the direct impact of dust in external environment, and the sealing in dustproof gasket 2 and bearing 1 Structure 15 forms combination sealing, more efficiently prevents from dust and enters Bearing inner from the gap of sealing structure 15.Wherein, dust-proof The end face of gasket 2 and bearing inner race 12 is fully welded prevents dust from entering from the junction of dustproof gasket 2 and bearing inner race 12 together The inside of bearing 1 extends the service life of bearing.

In order to facilitate welding, dustproof gasket 2 is circular ring metal piece, and the inner ring of the sheet metal is provided with chamfering.Specifically , the outer diameter of the sheet metal is less than the internal diameter of bearing outer ring 11, greater than the outer diameter of bearing inner race 12, the internal diameter of the sheet metal Less than the outer diameter of bearing inner race 12, greater than the internal diameter of bearing inner race 12.By this structure setting, not only enable dustproof gasket 2 It is enough to stop dust to the maximum extent, it is also convenient for welding dustproof gasket 2.

It pollutes the dust overwhelming majority inside bearing 1 and derives from external environment locating for bearing 1, therefore, dustproof gasket 2 is only Need to be welded on bearing inner race 12 on extraneous end face, bearing inner race 12 can on a side end face of internal structure Not weld dustproof gasket 2.

Wherein, sealing structure 15 includes dustproof groove 151 and the sealing ring 152 being arranged in dustproof groove 151.Sealing ring 152 Inner ring on be provided with support lip 1521 and dustproof lip 1522, support lip 1521 is arranged close to the position of rolling element 13.Support lip 1521 for carrying out Auxiliary support to rolling element 13, and dustproof lip 1522 is used to prevent the impurity such as extraneous dust from entering bearing 1 It is internal.

Further, the cross sectional shape of dustproof groove 151 is trapezoidal, and the height of the side of the trapezoidal close rolling element 13 is big Height in the side far from rolling element 13.It should be understood that support lip 1521 is positioned close to the top of the side of rolling element 13 On face, dustproof lip 1522 is arranged far from the top surface of the side of rolling element 13.

In one embodiment, there are two the settings of dustproof lip 1522, wherein a dustproof lip 1522 is arranged far from rolling On the top surface of the side of kinetoplast 13, another dustproof lip 1522 setting it is described it is trapezoidal in, enter axis to be better protected from dust 1 inside is held, the service life of bearing 1 is extended.

Weld together specifically, dustproof gasket 2 is fully welded by laser with the end face of bearing inner race 12.

Wherein, sealing ring 152 is nitrile rubber sealing ring.

The bearing 1 of the utility model is used by being fully welded connection dustproof gasket 2 on the end face of bearing inner race 12 The connection type of the spot welding commonly used in the prior art of welding, being fully welded connection can more effectively stop dust by dustproof gasket 2 and close Seal 152 enters the inside of bearing 1.

The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with features of novelty.

Claims (6)

1. a kind of end face has the bearing of dustproof gasket, including bearing inner race (12), bearing outer ring (11) and rolling element (13), institute It states rolling element (13) to be arranged between the bearing inner race (12) and bearing outer ring (11), rolling element (13) two sides are provided with Sealing structure (15), which is characterized in that be provided with dustproof gasket (2), the dust-proof cushion on the end face of the bearing inner race (12) The end face of piece (2) and the bearing inner race (12) is fully welded together；

The sealing structure (15) includes the sealing ring (152) of dustproof groove (151) and setting in the dustproof groove (151), institute It states and is provided with support lip (1521) and dustproof lip (1522) on the inner ring of sealing ring (152), the support lip (1521) is close to institute State the setting of rolling element (13) position；

The cross sectional shape of dustproof groove (151) be it is trapezoidal, the height of the side of trapezoidal close the rolling element (13) is greater than far The height of side from the rolling element (13).

2. the bearing that end face according to claim 1 has dustproof gasket, which is characterized in that the dustproof gasket (2) is Circular ring metal piece, the outer diameter of the sheet metal are less than the internal diameter of the bearing outer ring (11), are greater than the bearing inner race (12) Outer diameter, the internal diameter of the sheet metal is less than the outer diameter of the bearing inner race (12), is greater than the internal diameter of the bearing inner race (12).

3. the bearing that end face according to claim 1 has dustproof gasket, which is characterized in that dustproof gasket (2) weldering It connects in the bearing inner race (12) on extraneous end face.

4. the bearing that end face according to claim 1 has dustproof gasket, which is characterized in that the dustproof lip (1522) sets There are two setting.

5. the bearing that end face according to claim 1 has dustproof gasket, which is characterized in that the dustproof gasket (2) is logical It crosses laser and is fully welded and weld together with the end face of the bearing inner race (12).

6. the bearing that end face according to claim 1 has dustproof gasket, which is characterized in that the sealing ring (152) is Nitrile rubber sealing ring.