CN201027815Y

CN201027815Y - Cylindrical roller bearing storing lubricating grease

Info

Publication number: CN201027815Y
Application number: CNU2007200680373U
Authority: CN
Inventors: 刘庆华
Original assignee: Sibote Bearing Technology R & D Co Ltd Shanghai
Current assignee: Sibote Bearing Technology R & D Co Ltd Shanghai
Priority date: 2007-03-21
Filing date: 2007-03-21
Publication date: 2008-02-27
Anticipated expiration: 2017-03-21

Abstract

The utility model relates to a column roller bearing capable of storing lubricating lipid which comprises an exterior ring (10), an interior ring (20), a column roller (30) and a maintaining bracket (40), wherein, a lipid-storage slot (520) is arranged on the interior side of the exterior ring (10) and on both end surfaces (510) of the rolling path of the exterior ring, and an oil hole (201) is arranged in the middle of the interior ring (20). The utility model has the advantages that: when an abrupt change of the operating condition of the bearing causes transient high temperature, the mucosity of the lipid stored inside the lipid-storage slots on both end surfaces of the rolling path of the exterior ring is greatly decreased due to the rising temperature, and the lipid flows to the place of dry friction to decrease the internal high temperature due to friction, and prevent the ineffectiveness of the rolling body, thereby greatly improving the life span of the bearing.

Description

Can store the roller bearing of lubricating grease

Technical field

The utility model relates to a kind of roller bearing, relates in particular to the lubricated part of this bearing.

Background technique

Bearing is the important mechanical parts that support rotation, and the greasy property of bearing not only has very big influence to the Rotation Noise of bearing, and has a strong impact on the working life of bearing.Particularly under the operating mode of heavy duty, high speed, the lubrication problem of bearing is more outstanding.

Roller bearing extensive use and automobile, engineering machinery, lathe, motor, oil, milling train and all kinds of industrial machine.

By Figure 1A, Figure 1B as seen, the structure of roller bearing of the prior art is made up of outer ring 1, inner ring 2, cylindrical roller 3, retainer 4; Cylindrical roller 3 is very little with the axial clearance of the raceway end face 51 of raceway 5, does not have the space of enough storage lubricating grease; D is the outer ring internal diameter size among the figure.Therefore, such structure exists that rolling element (cylindrical roller) friction factor is big, heat radiation is slow, problems such as greasy property difference, particularly comparatively generally adopt the roller bearing of copper solid cage, because the volume of retainer self is excessive, its space of storing lubricating grease greatly reduces, often because the friction internal high temperature causes rolling element to lose efficacy, and the serious economic loss that causes main frame to damage.

Summary of the invention

The utility model technical issues that need to address have provided a kind of roller bearing that can store lubricating grease, are intended to solve above-mentioned defective.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model comprises: outer ring, inner ring, cylindrical roller, retainer; The place, inboard of described outer ring, outer ring raceway both ends of the surface also are provided with a storage fat groove; Have oilhole in the inner ring neutral position;

Compared with prior art, the beneficial effects of the utility model are: when the unexpected variation of operating mode generation of bearing causes the high temperature of short time, be stored in the grease in the outer ring raceway both ends of the surface oil storage tank because the raising of temperature greatly descends viscosity, in time flow to the position of roller generation dry friction, reduce because fricative internal high temperature, avoid rolling element to lose efficacy, the life-span of bearing is improved greatly.

Description of drawings

Figure 1A, Figure 1B are roller bearing structural drawing of the prior art;

Fig. 2 A, Fig. 2 B, Fig. 2 C are the utility model architecture figure;

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

By Fig. 2 A, Fig. 2 B as seen: the utility model comprises: outer ring 10, inner ring 20, cylindrical roller 30, retainer 40; The place, inboard of described outer ring 10, outer ring raceway both ends of the surface 510 also are provided with a storage fat groove 520; Have oilhole 201 in inner ring 20 neutral positions.Among the figure: raceway 50, d are the outer ring internal diameter sizes.

During bearing operation, can not get suitable lubricating, will produce dry friction as rolling element.Facts have proved that the heat that dry friction produces at short notice is enough to cause the damage of bearing even seize stuck, therefore the particularly easier damage that causes bearing of the dry friction of two end faces of roller must give good lubricated to the rolling element of bearing.

Of the present utility model identical with member straight roller bearing, but compared with prior art the outer ring raceway two ends have increased the space that can store lubricating grease.Therefore, outer ring internal diameter size d is much smaller than the outer ring internal diameter size D of straight roller bearing, processes the storage fat groove of storing lubricating grease in the part that the outer ring raceway end face increases.Finished product outer ring rib internal diameter changes mill processing into by the Vehicle Processing of straight roller bearing, the raising of precision and roughness makes outer ring rib internal diameter play guiding function to retainer, retainer is more stable in operation process, and noise that reduces bearing and the life-span of improving bearing are had certain effect.

By Fig. 2 C as seen: during the roller bearing running, the lubricant oil of injection is stored in the oil storage tank of outer ring raceway both ends of the surface by the both sides end face 72 of the roller cambered surface 70 inflow rollers of oilhole through having convexity 71 of inner ring.When the unexpected variation of operating mode generation of bearing causes the high temperature of short time, be stored in the grease in the outer ring raceway both ends of the surface oil storage tank because the raising of temperature greatly descends viscosity, in time flow to the position of roller generation dry friction, reduce because fricative internal high temperature, avoid rolling element to lose efficacy, the life-span of bearing is improved greatly.

Claims

1. the roller bearing that can store lubricating grease comprises: outer ring (10), inner ring (20), cylindrical roller (30), retainer (40); It is characterized in that: the place, inboard of described outer ring (10), outer ring raceway both ends of the surface (510) also are provided with a storage fat groove (520); Have oilhole (201) in inner ring (20) neutral position.