CN205663770U - Novel inner circle toper outer lane arc raceway ball bearing - Google Patents

Abstract

The utility model relates to a novel inner circle toper outer lane arc raceway ball bearing, including outer lane, inner circle, holder, steel ball, the steel ball is arranged in between inner circle and the outer lane through the holder, the bearing inner race raceway is asymmetric toper structure, and inner circle raceway both sides face gradient is different, is provided with the lubrication groove between bearing steel ball and the inner circle raceway, and the outer ring raceway cross section be symmetrical structure, and one section centre of raceway cross section be the straightway, and the both sides face is the arc, and through the difference of inner circle raceway both sides face inclination, messenger's steel ball is in the rotation of edge of rolling while self axis, the life of improvement steel ball. Surplus lubricating oil or lubricating grease can be stored to lubrication groove between inner circle raceway and the steel ball, and it is lubricated to make the steel ball fully obtain, and the temperature rise of reducing friction guarantees that the bearing keeps good working property under high -speed environment.

Description

A kind of novel inner ring taper outer ring arcuate groove ball bearing

Technical field

This utility model relates to Design of Mechanical Structure technical field, particularly relates to what a kind of steel ball surface complete with raceway contacted Novel ball bearing.

Background technology

Ball bearing, as the machinery basic element of character, is applied extremely wide.The ball bearing commonly used at present uses circular arc rolling Road, this kind of structure makes steel ball be single area with the contact area of raceway, easily causes steel ball ring-band shape in the course of the work tired Labor spot corrosion；Meanwhile, tradition ball bearing easily causes the dry friction of steel ball and raceway in the working environment lack lubricating oil, seriously Affect the life-span of bearing.

Utility model content

The utility model proposes a kind of novel inner ring taper outer ring arcuate groove ball bearing, solve steel ball ring-band shape tired The problem of labor spot corrosion, meanwhile, it is capable to certainly store lubricating oil, improves the greasy property of bearing.

For achieving the above object, this utility model provides following technical scheme: a kind of novel bearing, including inner ring, outer Circle, retainer and steel ball, the raceway of bearing inner race is asymmetric pyramidal structure, the angle of inclination size of the raceway two sides of inner ring , and upper and lower two cross sections of inner ring raceway are symmetrical about bearing axis.

By using technique scheme, make inner ring raceway and steel ball two-point contact, it is achieved same along rolling path rolling of steel ball Time rotate around own axes, reduce single area rub cycle number of times, by steel ball full surface contact reduce temperature, reduce steel ball Ring-band shape fatigue equivalent lost efficacy.

This utility model is further arranged to: between described steel ball and inner ring raceway, indwelling has oil-way.

By using technique scheme, make inner ring raceway have storage lubricating oil or the space of grease, can receive excessive Go out the lubricant of surplus, utilize rolling element band oil lubrication to be effectively improved the lubricant effect under bad working environments, improve bearing lubrication Energy.

This utility model is further arranged to: the raceway cross section mid portion of described outer ring is straightway, and two sides are Symmetrical arc.

By using technique scheme, reduce the contact area area of elastic deformation, be effectively improved contact area stress Distribution, coordinates inner ring raceway to realize steel ball simultaneously and contacts with the full surface of raceway.

Accompanying drawing explanation

Fig. 1 is the overall profile of this utility model bearing.

Fig. 2 is the partial structurtes schematic diagram of this utility model bearing.

Fig. 3 is the outside drawing of this utility model bearing.

Wherein: 1, the raceway cross section mid portion of outer ring；2, outer ring；3, steel ball；4, retainer；5, inner ring；6, lubrication Oil groove；7, contact point one；8, contact point two；9, the raceway cross section dual-side of outer ring.

Detailed description of the invention

Below in conjunction with accompanying drawing in this utility model embodiment, this utility model is further illustrated.

Need to illustrate that in this utility model embodiment, directional instruction (such as upper and lower, left and right ...) is only used for solving Release the relative position relation between each parts under a certain particular pose (as shown in drawings), motion conditions etc., if this specific appearance State changes, and directionality instruction changes accordingly therewith.

One novel inner ring taper outer ring arcuate groove ball bearing structure if Fig. 1 and 3 is this utility model embodiment shows Be intended to, including outer ring 2, inner ring 5, steel ball 3, retainer 4, on outer ring raceway on down cross-sectional and inner ring raceway down cross-sectional about Bearing axis is symmetrical.

Being illustrated in figure 2 enlarged partial sectional view of the present utility model, the inner ring raceway cross section left and right sides is asymmetric Taper, steel ball 3 and inner ring raceway two-point contact, the inclination angle, raceway two sides of inner ring is respectivelyαWithβ, inclination angleαWith incline Oblique angleβSize unequal, so make steel ball 3 while rolling path rolling, produce the rotation around own axes.Inner ring rolls It is oil-way 6 between road and steel ball, can receive and overflow superfluous lubricant, improve the lubricant effect of bearing.

The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, should be included in this utility model Protection domain within.

Claims (4)

1. a novel inner ring taper outer ring arcuate groove ball bearing, is characterized in that: described bearing includes inner ring (5), outer ring (2), retainer (4) and steel ball (3)；Described steel ball (3) is placed between outer ring (2) and inner ring (5) by retainer (4)；Described The raceway cross section of inner ring (5) is asymmetric pyramidal structure；Described steel ball (3) and the raceway two-point contact of inner ring (5)；Outside described The raceway cross section of circle (2) is the most symmetrical about bearing.

2. according to the one novel inner ring taper outer ring arcuate groove ball bearing described in claims 1, it is characterized in that: in described The inclination angle of the inner ring raceway side, contact point one (7) place of raceway and the steel ball (3) of circle (5) is α, the raceway of inner ring (5) with The inclination angle of the inner ring raceway side, contact point two (8) place of steel ball (3) is β；Described inclined angle alpha and angle of inclination beta size not phase Deng.

3. according to the one novel inner ring taper outer ring arcuate groove ball bearing described in claims 1, it is characterized in that: in described It is provided with oil-way (6) between raceway and the steel ball (3) of circle (5).

4., according to the one novel inner ring taper outer ring arcuate groove ball bearing described in claims 1, it is characterized in that: outside described Raceway cross section mid portion (1) of circle (2) is straightway, and raceway cross section dual-side (9) of the outer ring connected with it (2) is Symmetrical arc.