CN101487496A

CN101487496A - Hollow roller and supporting post holder combined bearing

Info

Publication number: CN101487496A
Application number: CNA200910010383XA
Authority: CN
Inventors: 孙有信
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-18
Filing date: 2009-02-18
Publication date: 2009-07-22

Abstract

The invention provides a bearing which combines a hollow roller and a brace retainer. The bearing comprises an outer race and an inner race. A retainer base and a retainer end cover are arranged between the outer race and the inner race, the end cover is provided with 15 equidistant Phi10 through holes, the retainer base is provided with 15 equidistant M10 threaded holes, and the middle part of the retainer is provided with 15 braces length of which is 133.4mm. One end of the braces takes M10 thread shape and is in threaded connection with the base at one end; and the other end Phi10 of the braces is matched with the other end cover Phi10. The middle parts of large-sized rolling elements of Phi67 are hollow rolling elements of Phi16, and 15 braces pass through the 15 rolling elements which are fixed between the outer race and the inner race by the two end covers and the braces, which forms the novel bearing which consists of the inner race, the outer race, the retainer base, the retainer end cover, the retainer braces and the rolling elements. The bearing is applied to heavy duty large equipment, and has the advantaged of simple structure, material saving, simple assembly and the like.

Description

A kind of bearing of hollow roller and post cage combination

Technical field

The present invention relates to a kind of roller bearing, particularly relate to a kind of bearing of a kind of large cylindrical hollow roller and post cage combination.Be the indispensable component of nearly all cylindrical bearing.

Background technique

Roller bearing is one of parts commonly used in the large-scale manufacturing mechanism.It mainly comprises outer ring, inner ring, roller and retainer.At present, the retainer main material that carries big power roller bearing is the copper-zinc alloy material.Because between the lid of original Cuprum alloy solid cage and the seat is to be connected with rivet, the perpendicularity of its rivet hole is difficult to assurance, can influence balance when running up.In addition, the pocket hole is that face contacts with roller, and the gap is little, and unfavorable lubricated, easy to wear during motion, bearing life is had a strong impact on.Solid cage is many in addition makes with the good copper product of wear resistance, but this makes the cost of retainer increase substantially again simultaneously.

Summary of the invention

The objective of the invention is fully guaranteeing and optimizing on the basis of existing rolling bearing performance, solve problems such as present large cylindrical rolls the installation inconvenience, the cost height that exist in bearing, load-carrying ability is not enough, working life is short, a kind of bearing that provides a kind of large cylindrical hollow roller and post cage to make up.

The technological scheme that adopts is:

A kind of bearing of hollow roller and post cage combination comprises the outer ring, inner ring.One of installing keeps stand and a retainer end cap between outer ring and inner ring, and 15 φ that is equally spaced 10 through holes are arranged on the end cap, and 15 M10 screws that are equally spaced are arranged on the retainer base.The centre is that 15 length are 133.4 millimeters pillar.Pillar one end is the shape of threads of M10, is threaded with a bottom seat; The other end φ 10 cooperates with another end cap φ 10.In the middle of the large-scale rolling element of φ 67 is the hollow rolling element of φ 16, and 15 pillars pass 15 rolling elements, are fixed between inner ring and the outer ring by two end caps and pillar.Form a kind of novel bearing of forming by inner ring, outer ring, maintenance stand, retainer end cap, cage pin, rolling element.The transmission shaft that is used for the high load main equipment.

Technical problem to be solved by this invention is:

1, adopts the 08AL quality steel plate, with mould and end cap of press machine impact briquetting retainer one base.On machinery, process base and be processed into 15 threaded structures, on machinery, process end cap and be processed into 15 five equilibrium through holes.Simple in structure, easy to process.

2, the large cylindrical roller is for weight reduction.Centrifugal force is little.The centre is a hollow-core construction, and pillar passes smoothly, and Bearing Installation is convenient.

3, saving non-ferrous raw material, was centrifugal casting brass originally, the price height, and Heavy Weight now is a 08AL high-quality cold rolled sheet, cost of material is very low, and is in light weight;

4, compare with brass solid cage and general steel plate pressing cage, it is longer that it can hold length, more cylindrical roller, thereby can improve the dynamic load rating and the rated static load of bearing, finally reach and improve the bearing effect in working life, by theoretical calculation, generally can improve dynamic load rating 10%.

5, do not contact between the roller, do not contact not friction with retainer, improve the bearing durability, can improve 30～50% working life.

Major advantage of the present invention is:

1, simple in structure, it is convenient that cylinder rolls in Bearing Installation.

2, save material, alleviate retainer weight, cost of material is than reducing by 50% with retainer originally.

3. increase rolling element quantity, increase the rolling element diameter, can improve the bearing load ability.Do not contact between this structure rolling element,, reduces original and friction retainer, raising bearing working life in retainer space revolution.

4, assembling is simple, if with pillar with after end cap is threaded, pillar passes rolling element, rivets together with another end cap, formation retainer assembly is assembled into bearing.

Operation instruction:

A kind of bearing of hollow roller and post cage combination comprises an outer ring, inner ring, one group of hollow roller, keeps stand, retainer end cap and 15 cage pins; Be characterized in all adopting novel post cage, can make the roller lengthening, overstriking; Every group of roller added, and be easy for installation, improves bearing load, thereby improve the working life of bearing.

Description of drawings

Fig. 1 is an assembling view of the present invention.

Fig. 2 is the sectional view of outer ring of the present invention.

Fig. 3 is the sectional view of inner ring of the present invention.

Fig. 4 is the sectional view of roller of the present invention.

Fig. 5 is the sectional view that the present invention keeps stand.

Fig. 6 is the sectional view of pillar of the present invention.

Fig. 7 is the sectional view of retainer end cap of the present invention.

Embodiment

In a kind of bearing sectional view of Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, hollow roller shown in Figure 7 and post cage combination, comprise an outer ring 1, inner ring 2, one group of cylinder hollow roller 3,, keep stand 4, retainer end cap 6 and 15 cage pins 5.Wherein, outer ring 1 is identical with existing bearing with inner ring 2, is technology as well known to those skilled in the art.Characteristics of this bearing are retainer composition body structures, and the stand 4 of maintenance and retainer end cap 6 are arranged, and keep on the stand 15 five equilibrium screws being arranged, and 15 halving holes are arranged respectively above the retainer end cap.Second characteristic is 3 one-tenth hollow-core constructions of roller.Having cage pin 5 to pass positions.It is characterized in that all adopting novel post cage, can make the roller lengthening, overstriking; Every group of roller added, and be easy for installation, improves bearing load, thereby improve the working life of bearing.

Claims

1, a kind of bearing of hollow roller and post cage combination comprises an outer ring, inner ring, one group of hollow roller, keeps stand, retainer end cap and 15 cage pins, and base is characterised in that:

(1) adopts the 08AL quality steel plate, with mould and end cap of press machine impact briquetting retainer one base; On machinery, process base and be processed into 15 threaded structures, on machinery, process end cap and be processed into 15 five equilibrium through holes;

(2) be hollow-core construction in the middle of the large cylindrical roller, pillar passes smoothly, and with after end cap is threaded, pillar passes rolling element, rivets together with another end cap with pillar, and formation retainer assembly is assembled into bearing;

(3) do not contact between the roller, do not contact not friction, improve the bearing durability with retainer;

(4) make roller lengthening, overstriking; Every group of roller added, and be easy for installation, improves bearing load.

2, a kind of bearing of hollow roller and post cage combination, it is characterized in that: be 08AL high-quality cold rolled sheet, cost of material is very low, and is in light weight.

3, a kind of bearing of hollow roller and post cage combination, it is characterized in that: improve dynamic load rating 10%, can improve 30～50% working life.

4, a kind of bearing of hollow roller and post cage combination, it is characterized in that: known technology is that roller is contained in the retainer pocket hole, and the present invention is that the Kong Liang of retainer enters in the hollow roller.