CN210889774U

CN210889774U - Straight-side combined type outer spherical surface ball bearing sealing structure

Info

Publication number: CN210889774U
Application number: CN201921828571.9U
Authority: CN
Inventors: 李志民
Original assignee: Hebei Yitaike Bearing Co ltd
Current assignee: Hebei Yitaike Bearing Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-06-30
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a straight flange combined type insert ball bearing seal structure, including insert ball bearing, insert ball bearing includes the bearing inner race, the bearing inner circle, the bearing holder, the bearing steel ball, sealing device, be provided with sealing device in the guard plate, sealing device includes IIR butyl rubber sealing washer, HVBR hydrogenation butyl fine rubber sealing washer, the skeleton, HVBR hydrogenation butyl fine rubber sealing washer crimping is on the skeleton, be provided with the clearance between HVBR hydrogenation butyl fine rubber sealing washer and the skeleton, IIR butyl rubber sealing washer sets up in the clearance between HVBR hydrogenation butyl fine rubber sealing washer and skeleton, IIR butyl rubber sealing washer's inner circle and bearing inner circle's outer wall contact. The utility model discloses it is strong to have the leakproofness, can prevent that the lubricating oil in the bearing from leaking the beneficial effect in the bearing is immersed to pollutants such as the dust of outside and water, its mainly used protection spherical outside surface ball bearing.

Description

Straight-side combined type outer spherical surface ball bearing sealing structure

Technical Field

The utility model relates to the technical field of accessories, in particular to straight flange combined type insert ball bearing seal structure.

Background

The Bearing (Bearing) is an important part in modern mechanical equipment, and its main function is to support the mechanical rotator, reduce the friction coefficient (friction coefficient) in its motion process, and ensure its rotation precision (accuracy), at present, the spherical outer surface Bearing has been widely used in agricultural machinery, textile machinery, food machinery, mining machinery, refrigeration machinery and conveyer belt system, and its internal sealing structure is to prevent the lubricating oil leakage in the Bearing and the external pollutants such as dust and water from immersing into the Bearing, and prevent it from influencing the service life of the Bearing, but the spherical outer surface Bearing in the prior art has insufficient sealing performance.

SUMMERY OF THE UTILITY MODEL

The utility model provides a leakproofness is strong, can prevent that the interior lubricating oil of bearing from leaking the straight flange combined type insert ball bearing seal structure in the bearing with pollutants such as dust and water of outside, aim at solving the not enough problem of the leakproofness of the insert bearing among the above-mentioned prior art who exists.

The utility model discloses a realize like this, straight flange combined type insert ball bearing seal structure, including insert ball bearing, insert ball bearing includes bearing inner race, bearing retainer, bearing steel ball, sealing device, bearing retainer is located between bearing inner race and the bearing outer race, be provided with assorted bearing steel ball in the bearing retainer, the corresponding both sides of bearing retainer all are provided with the guard plate, be provided with sealing device in the guard plate, sealing device includes IIR butyl rubber sealing washer, HVBR hydrogenated nitrile rubber sealing washer, skeleton, HVBR hydrogenated nitrile rubber sealing washer crimping is in on the skeleton, be provided with the clearance between HVBR hydrogenated nitrile rubber sealing washer and the skeleton, IIR butyl rubber sealing washer sets up in the clearance between HVBR hydrogenated nitrile rubber sealing washer and the skeleton, the inner ring of the IIR butyl rubber sealing ring is in contact with the outer wall of the bearing inner ring, and the framework is clamped on the inner wall of the bearing outer ring.

The bearing retainer is arranged in a circular ring structure.

The aperture spacing between the outer spherical ball bearings is the same.

And the distances between the bearing outer ring and the bearing inner ring are consistent.

And lubricating oil is arranged in the bearing, and the lubricating oil is bearing lubricating oil.

The height of the bearing outer ring is smaller than that of the bearing inner ring.

And dust-proof plates are arranged on two corresponding sides between the bearing outer ring and the bearing inner ring.

Compared with the prior art, the beneficial effects of the utility model are that: the sealing performance is strong, lubricating oil in the bearing can be prevented from leaking, and pollutants such as dust, water and the like outside can be prevented from entering the bearing, the HVBR hydrogenated nitrile rubber sealing ring is pressed on the framework, and the HVBR hydrogenated nitrile rubber sealing ring is good in corrosion resistance, tear resistance and compression deformation resistance, so that the IIR butyl rubber sealing ring is used for external dust prevention and water prevention, is arranged in a gap between the HVBR hydrogenated nitrile rubber sealing ring and the framework, and is in contact with the outer wall of the inner ring of the bearing, and the IIR butyl rubber sealing ring is good in air tightness and good in resistance to a solvent, so that the IIR butyl rubber sealing ring is used for preventing lubricating oil inside from leaking, and the sealing performance of the spherical outside ball bearing is greatly enhanced.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

fig. 2 is a schematic view of the sealing structure of the present invention;

fig. 3 is a left side view of the structure of the present invention.

In the figure: the bearing comprises an outer spherical surface ball bearing 1, a dust guard plate 2, a bearing outer ring 3, a bearing inner ring 4, a bearing retainer 5, a bearing steel ball 6, an IIR butyl rubber sealing ring 7, an HVBR hydrogenated nitrile rubber sealing ring 8 and a framework 9.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-3, the present invention provides a technical solution: the straight-side combined type outer spherical ball bearing sealing structure comprises an outer spherical ball bearing 1, wherein the outer spherical ball bearing 1 comprises a bearing outer ring 3, a bearing inner ring 4, a bearing retainer 5, a bearing steel ball 6 and a sealing device, the bearing retainer 5 is positioned between the bearing outer ring 3 and the bearing inner ring 4, the bearing retainer 5 is internally provided with the matched bearing steel ball 6, two corresponding sides of the bearing retainer 5 are respectively provided with a protection plate, the protection plate is internally provided with the sealing device, the sealing device comprises an IIR butyl rubber sealing ring 7, an HVBR hydrogenated nitrile rubber sealing ring 8 and a framework 9, the HVBR hydrogenated nitrile rubber sealing ring 8 is pressed on the framework 9, a gap is arranged between the HVBR hydrogenated nitrile rubber sealing ring 8 and the framework 9, the IIR butyl rubber sealing ring 7 is arranged in the gap between the HVBR hydrogenated nitrile rubber sealing ring 8 and the framework 9, the inner ring of the IIR butyl, the framework 9 is clamped on the inner wall of the bearing outer ring 3.

The bearing retainer 5 is arranged in a circular ring structure, so that the bearing steel ball 6 can work conveniently;

the aperture intervals between the outer spherical ball bearings 1 are the same, so that the outer spherical ball bearings 1 can conveniently operate;

the distances between the bearing outer ring 3 and the bearing inner ring 4 are consistent, so that the stability is improved;

lubricating oil is arranged in the bearing 1, and the lubricating oil is bearing lubricating oil, so that the bearing steel ball 6 can conveniently rotate;

the height of the bearing outer ring 3 is less than that of the bearing inner ring 4;

the two corresponding sides between the bearing outer ring 3 and the bearing inner ring 4 are provided with dust-proof plates 2 for preventing dust.

The utility model discloses an operating principle is, enough prevent in the bearing that the lubricating oil in the bearing leaks and the pollutant such as dust and water of outside immerses the bearing, because HVBR hydrogenation butyl fine rubber seal 8 is the crimping and is in on the skeleton 9 to HVBR hydrogenation butyl fine rubber seal 8 corrosion-resistant, anti tearing and resistance to compression deformation characteristic are good, so be used for outside dustproof, waterproof, and IIR butyl rubber seal 7 sets up in the clearance between HVBR hydrogenation butyl fine rubber seal 8 and skeleton 9, IIR butyl rubber seal 7's inner circle and bearing inner circle 4's outer wall contact, because IIR butyl rubber seal 7's gas tightness is good, existing fine resistance to the solvent, so be used for inside to prevent its lubricating oil leakage.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Straight flange combined type insert ball bearing seal structure, including insert ball bearing, its characterized in that: the outer spherical ball bearing comprises a bearing outer ring, a bearing inner ring, a bearing retainer, a bearing steel ball and a sealing device, the bearing retainer is positioned between the bearing outer ring and the bearing inner ring, the bearing retainer is internally provided with matched bearing steel balls, two corresponding sides of the bearing retainer are provided with protective plates, sealing devices are arranged in the protective plates, the sealing device comprises an IIR butyl rubber sealing ring, an HVBR hydrogenated nitrile rubber sealing ring and a framework, the HVBR hydrogenated nitrile rubber sealing ring is pressed on the framework, a gap is arranged between the HVBR hydrogenated nitrile rubber sealing ring and the framework, the IIR butyl rubber sealing ring is arranged in a gap between the HVBR hydrogenated nitrile rubber sealing ring and the framework, the inner ring of the IIR butyl rubber sealing ring is in contact with the outer wall of the bearing inner ring, and the framework is clamped on the inner wall of the bearing outer ring.

2. The straight-sided composite spherical outside bearing seal structure of claim 1, characterized in that: the bearing retainer is arranged in a circular ring structure.

3. The straight-sided composite spherical outside bearing seal structure of claim 1, characterized in that: the aperture spacing between the outer spherical ball bearings is the same.

4. The straight-sided composite spherical outside bearing seal structure of claim 1, characterized in that: and the distances between the bearing outer ring and the bearing inner ring are consistent.

5. The straight-sided composite spherical outside bearing seal structure of claim 2, characterized in that: and lubricating oil is arranged in the bearing, and the lubricating oil is bearing lubricating oil.

6. The straight-sided composite spherical outside bearing seal structure of claim 1, characterized in that: the height of the bearing outer ring is smaller than that of the bearing inner ring.

7. The straight-sided composite spherical outside bearing seal structure of claim 1, characterized in that: and dust-proof plates are arranged on two corresponding sides between the bearing outer ring and the bearing inner ring.