CN104047954A

CN104047954A - Four-point contact ball bearing with integral inner ring and integral outer ring

Info

Publication number: CN104047954A
Application number: CN201410243638.8A
Authority: CN
Inventors: 刘胜超; 姜韶峰; 张志恒; 王东峰; 徐海利
Original assignee: Luoyang Bearing Science and Technology Co Ltd
Current assignee: Luoyang Bearing Research Institute Co Ltd
Priority date: 2014-06-04
Filing date: 2014-06-04
Publication date: 2014-09-17
Anticipated expiration: 2034-06-04
Also published as: CN104047954B

Abstract

The invention relates to a four-point contact ball bearing with an integral inner ring and an integral outer ring. A bearing outer ring (1) and a bearing inner ring (2) respectively have an integral structure, the inner margin surface of the bearing outer ring is provided with an annular rolling element outer raceway, the outer margin surface of the bearing inner ring is provided with an annular rolling element inner raceway, the ball filling angle phi of each of the bearing outer ring and the bearing inner ring is controlled in a range of 186-193DEG, a plurality of rolling elements (3) are arranged between the bearing outer ring and the baring inner ring in an interval manner, the rolling elements are isolated by rolling element fixing positions (5) on a retainer (4), and two edges of each of the rolling element fixing positions are respectively provided with a locking notch (6). The four-point contact ball bearing omits the bonding operation of the bearing outer ring or the bearing inner ring, avoids the influences of the adhesion precision on the bearing precision, substantially improves the bearing processing and assembling efficiency, reduces the percent defective and substantially reduces the processing cost.

Description

A kind of inner ring and outer ring are all-in-one-piece four-point contact ball

[technical field]

The present invention relates to technical field of bearings, relate in particular to a kind of four-point contact ball, be specifically related to a kind of inner ring and outer ring and be all-in-one-piece four-point contact ball.

[background technique]

Known, four-point contact ball can bear pure axial load or the larger resulting load of axial load composition, also can bear tilting moment simultaneously, in the compact situation of axle system configuration, can replace double-row angular contact bal bearing; At present, in order to assemble smoothly four-point contact ball, the inner ring of four-point contact ball or outer ring are separated types, in course of working, first the inner ring of separated type or outer ring are glued to processing, in the time of assembling, are taken apart again, whole process is very complicated, and very high to bonding required precision, in course of working, the inner ring of separated type or the more difficult control of the ratio of precision of outer ring and reject rate are more high.

[summary of the invention]

For overcoming the deficiency existing in background technique, the invention provides a kind of inner ring and outer ring and be all-in-one-piece four-point contact ball, the present invention is by adopting all-in-one-piece bearing outer ring and bearing inner race, save the bonding process of bearing outer ring or bearing inner race, avoid the impact of bonding precision on bearing accuracy, greatly improved processing and the efficiency of assembling etc. of bearing.

For realizing goal of the invention as above, the present invention adopts technological scheme as described below:

A kind of inner ring and outer ring are all-in-one-piece four-point contact ball, comprise bearing outer ring, bearing inner race, rolling element and retainer, described bearing outer ring and bearing inner race are monolithic construction, on the inner edge surface of bearing outer ring, be provided with raceway outside annular rolling element, on the outer edge surface of bearing inner race, be provided with raceway in annular rolling element, between bearing outer ring and bearing inner race, be interval with a plurality of rolling elements, described each rolling element is respectively by the rolling element fixed position isolation on retainer, the both sides of described rolling element fixed position are respectively equipped with fore shaft and form described inner ring and outer ring and be all-in-one-piece four-point contact ball.

Described inner ring and outer ring are all-in-one-piece four-point contact ball, and the ball angle φ span of filling out of described bearing outer ring and bearing inner race is 186 °～193 °.

Described inner ring and outer ring are all-in-one-piece four-point contact ball, and described retainer is cirque structure, are provided with a plurality of rolling element fixed positions in a side of retainer, are respectively equipped with fore shaft in the both sides of each rolling element fixed position.

Described inner ring and outer ring are all-in-one-piece four-point contact ball, and described retainer is integrated molding and forming.

Described inner ring and outer ring are all-in-one-piece four-point contact ball, and the installation step of described rolling element is as follows:

The first step, bearing outer ring and bearing inner race are positioned in same plane, the rib of bearing outer ring and the rib of bearing inner race are located laminating on one point;

Second step, connect step, rolling element is put into from two rightabout gaps, rib joint place and contacted with the outer raceway on bearing outer ring;

The 3rd step, connect step, bearing inner race is pushed into raceway in it and contacts with rolling element;

The 4th step, connect step, rolling element is uniformly distributed in the middle of the interior raceway of bearing inner race and the outer raceway of bearing outer ring;

The 5th step, connect step, one end of retainer band rolling element fixed position is pressed into rolling element and completes trap.

Adopt technological scheme as above, the present invention has superiority as described below:

A kind of inner ring of the present invention and outer ring are all-in-one-piece four-point contact ball, the present invention is by being controlled at 186 °～193 ° by the ball angle φ that fills out of bearing outer ring and bearing inner race, then adopt all-in-one-piece bearing outer ring and bearing inner race, save the bonding process of bearing outer ring or bearing inner race, avoid the impact of bonding precision on bearing accuracy, the processing and the efficiency of assembling that have greatly improved bearing, reduced reject rate, greatly reduces processing cost etc.

[brief description of the drawings]

Fig. 1 is structural representation of the present invention;

Fig. 2 is B-B sectional structure schematic diagram of the present invention;

Fig. 3 is the structural representation of retainer in the present invention;

Fig. 4 is the assembling schematic diagram of rolling element of the present invention;

In the drawings: 1, bearing outer ring; 2, bearing inner race; 3, rolling element; 4, retainer; 5, rolling element fixed position; 6, fore shaft.

[embodiment]

Can explain in more detail the present invention by the following examples, the present invention is not limited to the following examples;

A kind of inner ring described in 1～3 and outer ring are all-in-one-piece four-point contact ball by reference to the accompanying drawings, comprise bearing outer ring 1, bearing inner race 2, rolling element 3 and retainer 4, described bearing outer ring 1 and bearing inner race 2 are monolithic construction, bearing outer ring 1 or bearing inner race 2 bonding process are saved, avoid the impact of bonding precision on bearing accuracy, greatly improve the work efficiency of bearing, reduce reject rate, greatly reduce processing cost etc., further, on the inner edge surface of bearing outer ring 1, be provided with raceway outside annular rolling element, the outstanding position on the outer raceway of described rolling element both sides forms the rib of rolling element 3, on the outer edge surface of bearing inner race 2, be provided with raceway in annular rolling element, in described rolling element, the outstanding position on raceway both sides forms the rib of rolling element 3, wherein the ball angle φ span of filling out of bearing outer ring 1 and bearing inner race 2 is 186 °～193 °, between bearing outer ring 1 and bearing inner race 2, be interval with a plurality of rolling elements 3, described each rolling element 3 is isolated by the rolling element fixed position 5 on retainer 4 respectively, described retainer 4 is integrated molding and forming, concrete structure is that retainer 4 is cirque structure, be provided with a plurality of rolling element fixed positions 5 in a side of retainer 4, be respectively equipped with fore shaft 6 in the both sides of each rolling element fixed position 5, form described inner ring and outer ring and be all-in-one-piece four-point contact ball.

4 a kind of inner rings of the present invention and outer ring are all-in-one-piece four-point contact ball by reference to the accompanying drawings, and the installation step of described rolling element 3 is as follows:

The first step, bearing outer ring 1 and bearing inner race 2 are positioned in same plane, the rib of the rib of bearing outer ring 1 and bearing inner race 2 is located laminating on one point;

Second step, connect step, rolling element 3 is put into from two rightabout gaps, rib joint place and contacted with the outer raceway on bearing outer ring 1;

The 3rd step, connect step, bearing inner race 2 is pushed back to raceway in it and contact with rolling element 3;

The 4th step, connect step, rolling element 3 is uniformly distributed in the middle of the interior raceway of bearing inner race 2 and the outer raceway of bearing outer ring 1;

The 5th step, connect step, retainer 4 is pressed into rolling element 3 with one end of rolling element fixed position 5 and completes trap.

The material of the rolling element 3 described in the present invention is steel ball or ceramic ball.

Part not in the detailed description of the invention is prior art.

The embodiment who selects in this article for open object of the present invention, currently thinks suitablely, still, will be appreciated that, the present invention is intended to comprise that all belong to all changes and the improvement of the embodiment in this design and invention scope.

Claims

1. an inner ring and outer ring are all-in-one-piece four-point contact ball, comprise bearing outer ring (1), bearing inner race (2), rolling element (3) and retainer (4), it is characterized in that: described bearing outer ring (1) and bearing inner race (2) are monolithic construction, on the inner edge surface of bearing outer ring (1), be provided with raceway outside annular rolling element, on the outer edge surface of bearing inner race (2), be provided with raceway in annular rolling element, between bearing outer ring (1) and bearing inner race (2), be interval with a plurality of rolling elements (3), described each rolling element (3) is respectively by rolling element fixed position (5) isolation on retainer (4), the both sides of described rolling element fixed position (5) are respectively equipped with described inner ring and the outer ring of fore shaft (6) formation and are all-in-one-piece four-point contact ball.

2. inner ring according to claim 1 and outer ring are all-in-one-piece four-point contact ball, it is characterized in that: the ball angle φ span of filling out of described bearing outer ring (1) and bearing inner race (2) is 186 °～193.

3. inner ring according to claim 1 and outer ring are all-in-one-piece four-point contact ball, it is characterized in that: described retainer (4) is cirque structure, be provided with a plurality of rolling element fixed positions (5) in a side of retainer (4), be respectively equipped with fore shaft (6) in the both sides of each rolling element fixed position (5).

4. inner ring according to claim 1 and outer ring are all-in-one-piece four-point contact ball, it is characterized in that: described retainer (4) is integrated molding and forming.

5. inner ring according to claim 1 and outer ring are all-in-one-piece four-point contact ball, it is characterized in that: the installation step of described rolling element (3) is as follows:

The first step, bearing outer ring (1) and bearing inner race (2) are positioned in same plane, the rib of the rib of bearing outer ring (1) and bearing inner race (2) is located laminating on one point;

Second step, connect step, rolling element (3) is put into from two rightabout gaps, rib joint place and contacted with the outer raceway on bearing outer ring (1);

The 3rd step, connect step, bearing inner race (2) is pushed into raceway in it and contacts with rolling element (3);

The 4th step, connect step, rolling element (3) is uniformly distributed in the middle of the interior raceway of bearing inner race (2) and the outer raceway of bearing outer ring (1);

The 5th step, connect step, one end of retainer (4) band rolling element fixed position (5) is pressed into rolling element (3) and completes trap.