CN105299057A - Dustproof and waterproof bearing - Google Patents

Abstract

The invention discloses a bearing which can rotate in water and various polluted environments. On the premise that the inner diameter, the outer diameter and the height of an existing bearing are not changed, a sealing part is added between an inner ring and an outer ring, and a contact type sealing method is adopted. The sealing part is added between the inner ring and the outer ring of the bearing when the bearing rotates. The sealing part is in interference fit with a non-rotating part, and four-face type sealing is adopted in the sealing part and a rotating part. In the abstract drawing, the outer ring is the non-rotating part, and interference fit is adopted in the outer ring; the inner ring is the rotating part and is sealed through a first sealing face, a second sealing face, a third sealing face and a fourth sealing face; and due to cooperation of the four faces, grease in the bearing is prevented from overflowing, and water and dust outside the bearing are prevented from entering the bearing.

Description

Dustproof and waterproof bearing

Technical field

Patent of the present invention relates to bearing waterproof in use, dust-proof problem.Especially the effect of water proof and dust proof can be reached under the prerequisite not changing former bearing size.

Background technique

In use, maximum problem is that water and dust enter Bearing inner to current known bearing, thus bearing noise is increased, and affects the working life of bearing.

In order to overcome bearing in rotation water and dust enter a difficult problem, the way that patent of the present invention adopts Sealing that the internal structure of bearing is isolated from the outside out, make the water in the bearing external world and dust not enter Bearing inner, the grease of Bearing inner does not arrive the external world yet.

Summary of the invention

Patent of the present invention adopted technological scheme of dealing with problems is: between bearing outer ring and inner ring, add a kind of high-abrasive material, and the method that bearing rotary part and Sealing adopt four faces to seal, expand the surface of contact of bearing and Sealing, thus play the effect of water proof and dust proof, and do not affect the use of bearing.

Accompanying drawing explanation

As Figure of description, little figure (Fig. 1) is bearing integral sectional drawing, and large figure (Fig. 2) is the amplification of little figure (Fig. 1) upper half part.In large figure (Fig. 2), the structure of bearing and Sealing is carried out entirety and amplifies.

Embodiment

The surface of contact of Sealing and bearing rotating part is respectively the first surface of contact, the second surface of contact, the 3rd surface of contact, the 4th surface of contact.Prevent Bearing inner grease excessive by the first surface of contact and the second surface of contact, prevent entering of Bearing outer water and dust by the 3rd surface of contact and the 4th surface of contact.

As the first surface of contact, the second surface of contact, the 3rd surface of contact, the 4th surface of contact in Figure of description not at grade, the water of inner grease and outside and dust are difficult to by so complicated surface of contact in the rotation of bearing, and very little on the rotation impact of bearing, so play waterproof and dust-proof effect.

Claims (1)

1. the rotating part of bearing and the Sealing mode that adopts four faces to seal.