CN101614242A

CN101614242A - The convex asymmetrical roller cambered surface holder bearing

Info

Publication number: CN101614242A
Application number: CN200910012562A
Authority: CN
Inventors: 何宏
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-16
Filing date: 2009-07-16
Publication date: 2009-12-30

Abstract

A kind of convex asymmetrical roller cambered surface holder bearing, its feature has three uniform oil throughs being that an outer spherical surface outer ring is arranged on the outer ring; A double channel is arranged, and the inner ring of three ribs of upper, middle and lower is arranged; The rolling element that 28 non-symmetry structures are arranged; Be made up of the cambered surface bearing copper cage that two structures are different with original all structures, each retainer has 14 asymmetric 14 cambered surface holes up and down.Two raceway outsides of cover in the copper cage of two special constructions is placed on, 14 of two cambered surface copper cages that 28 asymmetric rolling elements are contained in new structure are the inside, asymmetric pocket hole up and down, these two retainers, 28 rolling elements, cover is formed bearing inner assembly in the two raceways.When hard slurry dirt entered bearing, bearing can lean on the very big centrifugal force of self dissymmetrical structure generation, dirt was got rid of work on.

Description

The convex asymmetrical roller cambered surface holder bearing

Technical field

The present invention relates to bearing and make the field, concrete relate to a kind of convex asymmetrical roller cambered surface holder bearing.

Background technique

The spherical bearing that generally uses all comprises bearing inner race at present, rolling element and bearing outer ring, retainer, bearing is arranged between bearing inner race and the bearing outer ring, between bearing inner race and bearing outer ring, be equipped with ring raceway, the ring raceway sectional shape is a circular arc, and the radius of this circular arc is greater than the radius of ball, the ball journal of this structure can only bear radial load, can not bear thrust load, and each rolling element and bearing outer ring and bearing inner race have only a point of contact respectively, the radially ability of bearing also is subjected to certain restriction, when the bearing physical dimension is restricted, and when bearing the ultimate bearing load greater than existing ball bearing, will reduce greatly the working life of this airframe bearing.On many special devices with specific (special) requirements, physical dimension is little, and bearing load is big, thereby existing ball bearing can't satisfy the requirement of above equipment.Can only bear radial load and can not bear the thrust load defective for overcoming above ball bearing, now much people have begun the better airframe bearing of research and development innovation, but influenced by its machining accuracy and usage space, assembly precision all is difficult to reach precision bearing and uses standard-required.

The convex asymmetrical roller cambered surface holder bearing is different from common use bearing, and under heavy load and abominable working environment, bearing can guarantee high strength, high wear resistance, performances such as high self lubricity, high rotating speed use.General bearing is easy under the situation of service condition difference, rotate stuck can't proper functioning, can cause the bearing burn when serious, the auger spindle damage brings serious economy loss.

Summary of the invention

The purpose of this invention is to provide the high convex asymmetrical roller cambered surface holder bearing of a kind of rotating mass and rotating accuracy, structure has an outer spherical surface outer ring, and three uniform oil throughs are arranged on the outer ring; A double channel is arranged, and the inner ring of three ribs of upper, middle and lower is arranged; The rolling element (roller) that 28 non-symmetry structures are arranged; Form by the cambered surface retainer that two structures are different with original all structures, assemble with known technology; , machining accuracy is higher than plain bearing;

The external diameter of two special constructions is curved, two raceway outsides of cover in the curved copper cage of pass is placed on, 28 asymmetric rolling elements (roller) are contained in the inside, 14 asymmetric pockets of copper cage hole of two new structures, these two retainers, 28 rolling elements, cover is formed bearing inner assembly in the two raceways.

The main inventive point of the present invention is: a kind of special asymmetric spherial rolling body (roller) load-bearing bearing is provided.Three uniform oil throughs are arranged on the outer ring; Inner ring has a double channel, and three ribs of upper, middle and lower are arranged; The rolling element (roller) that 28 non-symmetry structures are arranged; The special construction bearing of forming by two structures cambered surface retainer different with original all structures.Bearing at work, when hard slurry dirt entered bearing, bearing can lean on self dissymmetrical structure to produce very big centrifugal force, dirt was got rid of work on.The present invention satisfies the abominable usage requirement of load-bearing overall situation on large-scale transmission device.

The present invention has following advantage compared to existing technology:

The convex asymmetrical roller cambered surface holder bearing not only can make the bearing of high speed rotating can bear powerful axial impact force, and can also bear radial load, and then has improved the rotating mass and the rotating accuracy of whole bearing again.Compared with former similar bearing, can improve load more than 2 times, eliminated greatly in the bearing load variation, the operating conditions of work under bad environment, cause bearing stuck, many drawbacks and potential safety hazards such as combustion axle, trepan damage, the working life of having improved whole bearing; The precision of convex asymmetrical roller cambered surface holder bearing makes up, and has guaranteed to transmit the reliability of spindle speed, improves the rotating speed of bearing, and can reduce friction, and reduces the revolution noise; The convex asymmetrical roller cambered surface holder bearing has guaranteed the high speed of transmission main shaft rotating speed, steady, low noise, and mechanical resonant frequency is changed, and reduces the vibrations of trepan under the state of running up, the rotating accuracy height, and noise is little.

Description of drawings

Fig. 1 is the three-dimensional simplified schematic diagram of the present invention

Fig. 2 is the three-dimensional simplified schematic diagram in outer ring of the present invention

Fig. 3 is the three-dimensional simplified schematic diagram of inner ring of the present invention

Fig. 3-the 1st, simplified schematic diagram is amplified in the part of Fig. 3 of the present invention

Fig. 3-the 2nd, simplified schematic diagram is amplified in the part of Fig. 3 of the present invention

Fig. 4 is a rolling element simplified schematic diagram of the present invention

Fig. 5 is a retainer simplified schematic diagram of the present invention

Fig. 5-the 1st, retainer of the present invention side simplified schematic diagram

Fig. 5-the 2nd, retainer pocket of the present invention hole partial enlarged drawing

In Fig. 1, Fig. 2, Fig. 3, Fig. 3-1, Fig. 3-2, Fig. 4, Fig. 5, Fig. 5-1 and Fig. 5-2 simplified schematic diagram, concrete parts numeral is: outer ring 1, inner ring 2, rolling element 3, retainer 4.

Embodiment

At Fig. 1 to the convex asymmetrical roller cambered surface holder bearing simplified schematic diagram shown in Figure 5, structure has 1 altogether of bearing

outer ring

1,1 altogether of bearing inner race 2,28 altogether of bearing rollers (roller) 3, retainer 4 to amount to two compositions, and the mode of assembling adopts known technology to connect and assembles;

Two raceway outsides of cover in the arc copper cage 4 of two special constructions is placed on, 28 asymmetric rolling elements (roller) 3 are contained in the inside, 40 four asymmetric pockets of two copper cages hole of new structure, these two retainers 4, cover is formed bearing inner assembly in 3, one two raceways of 28 rolling elements (roller).The inner assembly that forms is assembled in the external spherical surface raceway of overcoat with known technology again, arrives the requirement of standard play.

Claims

1, a kind of convex asymmetrical roller cambered surface holder bearing is characterized in that: an outer spherical surface outer ring is arranged, three uniform oil throughs are arranged on the outer ring; A double channel is arranged, and the inner ring of three ribs of upper, middle and lower is arranged; The rolling element that 28 non-symmetry structures are arranged; Be made up of the cambered surface bearing copper cage that two structures are different with original all structures, each retainer has 14 asymmetric 14 cambered surface holes up and down.

2, convex asymmetrical roller cambered surface holder bearing according to claim 1, it is characterized in that: two raceway outsides of cover in the copper cage of two special constructions is placed on, 14 of two cambered surface copper cages that 28 asymmetric rolling elements are contained in new structure are the inside, asymmetric pocket hole up and down, these two retainers, 28 rolling elements, cover is formed bearing inner assembly in the two raceways.

3, convex asymmetrical roller cambered surface holder bearing according to claim 1 is characterized in that: when hard slurry dirt entered bearing, bearing can lean on the very big centrifugal force of self dissymmetrical structure generation, dirt was got rid of work on.