CN211623974U

CN211623974U - Automatic aligning labyrinth glued composite dust cover

Info

Publication number: CN211623974U
Application number: CN201921419758.3U
Authority: CN
Inventors: 陈旭明
Original assignee: Zhejiang Xinchang Johnson Seal Co ltd
Current assignee: Zhejiang Xinchang Johnson Seal Co ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-10-02
Anticipated expiration: 2029-08-29

Abstract

The utility model provides an automatic aligning labyrinth type glued composite dust cap, including endotheca shield, overcoat shield, the endotheca shield includes first skeleton, first many lips sealing member, the overcoat shield includes second skeleton, second many lips sealing member, the inner circle of first skeleton closely cooperates with the bearing inner circle, the outer wall of first skeleton outer lane is equipped with first many lips sealing member, first many lips sealing member and the outer lane interference fit of second skeleton; the outer ring of the second framework is tightly matched with the bearing outer ring, a second multi-lip sealing element is arranged on the outer wall of the inner ring of the second framework, and the second multi-lip sealing element is in interference fit with the inner ring of the first framework. Can form sealed space between the shield, make the difficult excessive of grease in the bearing, outside severe pollutant and dust are difficult to invade inside, have improved the life of bearing in the severe pollutant environment greatly.

Description

Automatic aligning labyrinth glued composite dust cover

[ technical field ] A method for producing a semiconductor device

The utility model relates to a technical field of bearing accessory, especially an automatic aligning labyrinth area glues compound shield.

[ background of the invention ]

The bearing generally comprises an outer ring, an inner ring and a rolling body positioned between the inner ring and the outer ring, the sealing performance is poor, generally, in the running process, the lubricant in the bearing part leaks, and dust, moisture and foreign matters outside the bearing invade the inside of the bearing, so that the bearing is worn, the normal use of the bearing is influenced, the service life of the bearing is shortened, a bearing sealing ring is a main sealing part in the bearing, lubricating grease is stored in the bearing, and meanwhile, the external foreign matters or dust are prevented from entering the bearing, and the service life of the bearing can be effectively prolonged. The sealing cover and the check ring are combined to enhance the sealing performance, but no strong sealing exists between the sealing cover and the check ring, grease can overflow, and the labyrinth type glued composite dust cover with the automatic aligning function is provided.

[ Utility model ] content

The utility model aims at solving the problem among the prior art, providing an automatic compound shield is glued to aligning labyrinth area, form confined space between the shield, guarantee that the grease in the bearing is difficult for excessive.

In order to achieve the purpose, the utility model provides an automatic aligning labyrinth type glued composite dust cap, which comprises an inner sleeve dust cap tightly matched with a bearing inner sleeve and an outer sleeve dust cap tightly matched with a bearing outer sleeve, wherein the inner sleeve dust cap comprises a first framework and a first multi-lip sealing element, the outer sleeve dust cap comprises a second framework and a second multi-lip sealing element, and the first framework and the second framework are annular bodies; the inner ring of the first framework is tightly matched with the inner ring of the bearing, a second inner cavity with an opening is formed in an inner area defined by the second framework, the outer ring of the first framework is arranged in the second inner cavity, a first multi-lip sealing element is arranged on the outer wall of the outer ring of the first framework, a plurality of first sealing lips extend towards the inner ring on the first multi-lip sealing element, and the first sealing lips are in interference fit with the outer ring of the second framework; the outer ring of the second framework is tightly matched with the outer ring of the bearing, an inner area formed by the first framework in a surrounding mode is provided with a first inner cavity with an opening, the inner ring of the second framework is arranged in the first inner cavity, the outer wall of the inner ring of the second framework is provided with a second multi-lip sealing element, a plurality of first sealing long lips extend towards the inner ring on the second multi-lip sealing element, and the first sealing long lips are in interference fit with the inner ring of the first framework.

Preferably, the first framework comprises a first inner ring framework, a first folding edge, a second folding edge and an L-shaped supporting framework, the first folding edge and the second folding edge which are bent towards the outer ring are respectively extended from two sides of the first inner ring framework, the L-shaped supporting framework in a bent shape is extended from the outer ring of the second folding edge, and the first multi-lip sealing element is fixed on the L-shaped supporting framework.

Preferably, a first thin rubber bent toward the inner ring direction extends from one side of the first multi-lip seal, and the first thin rubber covers the outer wall of the second folded edge.

Preferably, the first sealing lip comprises a reinforced sealing lip extending towards one side close to the second framework and an inclined long sealing lip extending towards one side far away from the second framework, and the outer ring of the reinforced sealing lip is provided with a sealing part with a triangular section.

Preferably, the second skeleton includes first outer lane skeleton, a word support chassis and side skeleton, the outer lane of side skeleton extends there is the first outer lane skeleton of buckling, the inner circle of side skeleton extends there is a word support chassis of buckling, the multi-lip sealing member of second is fixed in the inner circle of a word support chassis.

Preferably, a second thin rubber bent in the outer ring direction extends from one side of the second multi-lip seal, and the second thin rubber is coated on the outer wall of the side frame.

Preferably, the second multi-lip sealing element is provided with two first long sealing lips which are arranged in parallel, and the first long sealing lips are perpendicular to the linear supporting framework.

The utility model has the advantages that: the utility model discloses a compound dustproof construction processing is simple, and the shaping is easy, and the product has automatic aligning effect to it is good to have intensity simultaneously, sealed effect splendid characteristics. Through the cooperation of endotheca shield, overcoat shield etc. can form sealed space between the shield, make the difficult excessive of grease in the bearing, outside severe pollutant and dust are difficult to invade inside, have improved the life of bearing in the severe pollutant environment greatly.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a schematic sectional view of a composite structure of an automatic aligning labyrinth type glued composite dust cap of the present invention;

FIG. 2 is a schematic cross-sectional view of an inner sleeve dust cap of the labyrinth type automatic aligning rubber composite dust cap of the present invention;

fig. 3 is a schematic cross-sectional view of the outer cover dust cap of the automatic aligning labyrinth type glued composite dust cap of the present invention.

[ detailed description ] embodiments

Referring to fig. 1 to 3, the utility model relates to an automatic aligning labyrinth type glued composite dust cap, which comprises an inner sleeve dust cap 1 tightly matched with a bearing inner sleeve and an outer sleeve dust cap 2 tightly matched with a bearing outer sleeve, wherein the inner sleeve dust cap 1 comprises a first framework 11 and a first multi-lip sealing element 12, the outer sleeve dust cap 2 comprises a second framework 21 and a second multi-lip sealing element 22, and the first framework 11 and the second framework 21 are annular bodies; the inner ring of the first framework 11 is tightly matched with the inner ring of the bearing, a second inner cavity 20 with an opening is formed in an inner area defined by the second framework 21, the outer ring of the first framework 11 is arranged in the second inner cavity 20, a first multi-lip sealing element 12 is arranged on the outer wall of the outer ring of the first framework 11, a plurality of first sealing lips extend towards the inner ring on the first multi-lip sealing element 12, and the first sealing lips are in interference fit with the outer ring of the second framework 21; the outer lane and the bearing inner race of second skeleton 21 closely cooperate, the inner region formation that first skeleton 11 encloses has open-ended first inner chamber 10, the inner circle of second skeleton 21 sets up in first inner chamber 10, the outer wall of second skeleton 21 inner circle is equipped with the many lips of second sealing member 22, it has the first sealed long lip 221 of a plurality of to extend to the inner circle on the many lips of second sealing member 22, the inner circle interference fit of first sealed long lip 221 and first skeleton 11.

Further, first skeleton 11 includes first inner circle skeleton 111, first hem 112, second hem 113 and L word support skeleton 114, the both sides of first inner circle skeleton 111 extend respectively to the first hem 112 and the second hem 113 of outer lane buckling, the outer lane of second hem 113 extends has the L word support skeleton 114 of the form of buckling, first lip sealing member 12 is fixed in on the L word support skeleton 114. One side of the first multi-lip seal 12 extends with a first thin rubber 120 bending towards the inner ring direction, and the first thin rubber 120 covers the outer wall of the second flange 113. First seal lip includes to the enhancement seal lip 122 that extends to being close to second skeleton 21 one side, to keeping away from the long lip 121 of oblique seal that extends of second skeleton 21 one side, the outer lane of strengthening seal lip 122 is equipped with the cross-section and is triangular seal portion 1220.

Further, the second frame 21 includes a first outer ring frame 211, a first-shaped supporting frame 212 and a side frame 213, the outer ring of the side frame 213 extends to form the first outer ring frame 211, the inner ring of the side frame 213 extends to form the first-shaped supporting frame 212, and the second multi-lip sealing member 22 is fixed to the inner ring of the first-shaped supporting frame 212. One side of the second multi-lip seal 22 extends with a second thin rubber 220 bending towards the outer ring direction, and the second thin rubber 220 is coated on the outer wall of the side frame 213. The second multi-lip sealing member 22 is provided with two first long sealing lips 221 which are arranged in parallel, and the first long sealing lips 221 are perpendicular to the linear supporting framework 212.

The utility model discloses the working process:

1) the first inner ring framework 111 of the inner sleeve dust cover 1 is tightly matched with the bearing inner sleeve, and the bending at the inner diameter can effectively prevent large external particles from contacting the lip edge of a product, so that the service life of the product is greatly prolonged. The double lip edges at the outer diameter can be well matched with the framework of the outer dustproof cover 2, so that the bearing grease can be effectively prevented from seeping.

2) The first outer ring skeleton 211 of the external diameter of overcoat shield 2 and bearing housing tight fit prevent that bearing grease from overflowing from the overcoat, and the two lip rubber of internal diameter prevents that external pollutant from getting into the bearing because there is the support of improving back rigid structure word support chassis 212 that the ability is better, ensures that the bearing is intact, and inboard seal lip is used for preventing that grease is excessive in the bearing.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides an automatic compound shield of centering labyrinth area glue which characterized in that: the bearing comprises an inner sleeve dustproof cover (1) tightly matched with a bearing inner sleeve and an outer sleeve dustproof cover (2) tightly matched with a bearing outer sleeve, wherein the inner sleeve dustproof cover (1) comprises a first framework (11) and a first multi-lip sealing element (12), the outer sleeve dustproof cover (2) comprises a second framework (21) and a second multi-lip sealing element (22), and the first framework (11) and the second framework (21) are annular bodies;

the inner ring of the first framework (11) is tightly matched with the inner ring of the bearing, an inner area surrounded by the second framework (21) forms a second inner cavity (20) with an opening, the outer ring of the first framework (11) is arranged in the second inner cavity (20), a first multi-lip sealing element (12) is arranged on the outer wall of the outer ring of the first framework (11), a plurality of first sealing lips extend towards the inner ring on the first multi-lip sealing element (12), and the first sealing lips are in interference fit with the outer ring of the second framework (21);

the outer lane of second skeleton (21) closely cooperates with the bearing inner race, the inner zone formation that first skeleton (11) enclose has open-ended first inner chamber (10), the inner circle of second skeleton (21) sets up in first inner chamber (10), the outer wall of second skeleton (21) inner circle is equipped with the many lip seal of second (22), it has a plurality of first sealed long lip (221) to extend to the inner circle on the many lip seal of second (22), the inner circle interference fit of first sealed long lip (221) and first skeleton (11).

2. The self-aligning labyrinth glued composite dust cap of claim 1, characterized in that: first skeleton (11) are including first inner circle skeleton (111), first hem (112), second hem (113) and L word support skeleton (114), the both sides of first inner circle skeleton (111) are extended respectively to first hem (112) and second hem (113) that the outer lane is buckled, the outer lane of second hem (113) extends and has L word support skeleton (114) of the form of buckling, first many lips sealing member (12) are fixed in on L word support skeleton (114).

3. The self-aligning labyrinth glued composite dust cap of claim 2, characterized in that: one side of the first multi-lip sealing element (12) extends to form a first thin rubber (120) which is bent towards the inner ring direction, and the outer wall of the second folded edge (113) is coated with the first thin rubber (120).

4. The self-aligning labyrinth glued composite dust cap of claim 1, characterized in that: first seal lip is including to strengthening seal lip (122) that extend to being close to second skeleton (21) one side, to keeping away from long lip (121) of oblique seal that extend on one side of second skeleton (21), the outer lane of strengthening seal lip (122) is equipped with sealing portion (1220) that the cross-section is triangle-shaped.

5. The self-aligning labyrinth glued composite dust cap of claim 1, characterized in that: second skeleton (21) include first outer lane skeleton (211), a word support skeleton (212) and side skeleton (213), the outer lane of side skeleton (213) extends has first outer lane skeleton (211) of buckling, the inner circle of side skeleton (213) extends has a word support skeleton (212) of buckling, second lip sealing member (22) are fixed in the inner circle of a word support skeleton (212).

6. The self-aligning labyrinth glued composite dust cap of claim 5, characterized in that: one side of the second multi-lip sealing piece (22) extends to form a second thin rubber (220) bent towards the outer ring direction, and the second thin rubber (220) is coated on the outer wall of the side framework (213).

7. The self-aligning labyrinth glued composite dust cap of claim 1, characterized in that: two first long sealing lips (221) which are arranged in parallel are arranged on the second multi-lip sealing piece (22), and the first long sealing lips (221) are perpendicular to the linear supporting framework (212).