CN203856897U - Built-in type sealed slewing bearing - Google Patents

Abstract

The utility model discloses a built-in type sealed slewing bearing in the field of mechanical devices. The slewing bearing comprises an outer ring, an inner ring, rollers and a seal ring, wherein the rollers are arranged in rolling grooves of the outer and inner rings. The slewing bearing is characterized in that a clamping slot is formed in the joining surface between the outer and inner rings and in two sides of a roller path; the seal ring is a rubber seal bar which is embedded in the clamping slot; the joining surface between the outer and inner surfaces is of an asymmetric structure; one side of the end surface of the gap of the joining surface is big and the other side of the end surface of the gap of the joining surface is small; an adjusting hole penetrating to the roller path is formed in the outer ring. The built-in type sealed slewing bearing has the advantages of advanced structure, good sealing performance, long service life and the like.

Description

The floating bearing of built-in sealing

Technical field

The utility model relates to the floating bearing of a kind of built-in sealing in machinery field.

Background technique

At machinery middle (center) bearing, it is conventional rotary connecting device, the quality of bearing directly affects the working life of machinery, the main cause of the damage of bearing is mostly the material that outside foreign material enter bearing interface or manufacture bearing and can not meets due to continuous operation needs, because the operating mode of operation is different, some Environmental Conditions very severe, must directly contact with dust, the metal spittle, mud, water, greasy dirt, acidic materials, so the design of the dust sealing of bearing is most important, having good sealing is the key technology that effectively extends the bearing pot life.

Summary of the invention

The purpose of the present utility model is to overcome the deficiencies in the prior art, and a kind of floating bearing of built-in sealing is provided.

The utility model is achieved through the following technical solutions:

A kind of floating bearing of built-in sealing, comprise outer ring, inner ring, roller and seal ring, roller is positioned at the slot rolling of outer ring and inner ring, it is characterized in that: outer ring and inner ring mating face are provided with draw-in groove, draw-in groove is positioned at the both sides of raceway, seal ring is rubber weather strip, and rubber weather strip is embedded in draw-in groove, reduces the regular maintenance to bearing; Outer ring and inner ring mating face are dissymmetrical structure, and the gap on outer ring and inner ring mating face is that end face one side is large, and end face opposite side is little; On outer ring, there is the adjustment hole that is through to raceway, for regulating gap.

The utlity model has following beneficial effect:

1. structure is advanced, good seal performance;

2. non-maintaining.

Accompanying drawing explanation

Fig. 1 is the floating bearing structural drawing of built-in sealing.

In figure: outer ring 1, inner ring 2, roller 3, built-in Stamping Steel Ribbon 4 and built-in Stamping Steel Ribbon 5.

Embodiment

Below in conjunction with accompanying drawing, content of the present utility model is described further:

As shown be the floating bearing structural drawing of built-in sealing, comprise outer ring 1, inner ring 2, roller 3, built-in Stamping Steel Ribbon 4 and built-in Stamping Steel Ribbon 5.

The floating bearing of the built-in sealing of the present utility model design, has improved sealing means, realizes at the inner Stamping Steel Ribbon of installing of bearing, thereby reach floating bearing, under mal-condition, uses.

This Spiral digging machine drilling rod is processed with draw-in groove with floating bearing at the inner ring of bearing inside and the junction of outer ring; for running in bearings seal ring, adopt rubber weather strip; because Stamping Steel Ribbon is to be contained in bearing inside; the sealability that protection floating bearing is used under sand and dust, the externally rugged environment such as rainy, hot, this kind of built-in structure design greatly reduced the regular maintenance to floating bearing.

Claims (3)

1. the floating bearing of a built-in sealing, comprise outer ring, inner ring, roller and seal ring, roller is positioned at the slot rolling of outer ring and inner ring, it is characterized in that: outer ring and inner ring mating face are provided with draw-in groove, draw-in groove is positioned at the both sides of raceway, seal ring is rubber weather strip, and rubber weather strip is embedded in draw-in groove.

2. a kind of floating bearing of built-in sealing according to claim 1, is characterized in that: outer ring and inner ring mating face are dissymmetrical structure, and the gap on outer ring and inner ring mating face is that end face one side is large, and end face opposite side is little.

3. a kind of floating bearing of built-in sealing according to claim 1, is characterized in that: on outer ring, have the adjustment hole that is through to raceway.