CN104675854A

CN104675854A - Oversize bearing

Info

Publication number: CN104675854A
Application number: CN201510092594.8A
Authority: CN
Inventors: 王雅红; 雷晓敏; 刘维佳
Original assignee: Luoyang Institute of Science and Technology
Current assignee: Luoyang Institute of Science and Technology
Priority date: 2015-03-02
Filing date: 2015-03-02
Publication date: 2015-06-03
Anticipated expiration: 2035-03-02
Also published as: CN104675854B

Abstract

An oversize bearing comprises an outer ring, an inner ring, rollers, a retainer and a spring collar, wherein the retainer is arranged between the inner ring and the outer ring, the rollers are evenly mounted in pockets of the retainer, the spring collar is mounted in a spring clamping groove in the outer circumferential surface of the small end of the inner ring and replaces a small flange of an original structure, the inner ring, the rollers, the retainer and the spring collar constitute an inseparable but detachable inner assembly, and the retainer is a pressed retainer. According to the bearing, the rollers are designed to adopt solid structures, so that a roller heat treatment technology can be simplified; a combined retainer is changed into the pressed retainer, so that the number of parts constituting the bearing is decreased, the bearing assembly technology is simplified, and meanwhile, the cost is reduced; the small flange on the inner ring is omitted and changed into the spring collar, so that the structure is simplified, and the machining precision of the inner ring is improved.

Description

A kind of extra large size bearing

Technical field

The present invention relates to a kind of bearing, especially relate to a kind of extra large size bearing.

Background technique

In prior art, the structure of extra large size bearing as shown in Figure 1, the both sides of its inner ring 2 are respectively equipped with little rib 201 and large-flange 202, retainer is combination retainer, roller is set to hollow-core construction, retainer and roller are assembled by the pillar 7 be interspersed in hollow roller, and the back-up ring of the large end of roller is by being threaded on pillar, and the back-up ring of roller small end is welded on the weld 6 of pillar, in addition, the back-up ring of roller small end and the connection of pillar also can adopt the mode heating rivet weld.The inner ring structure that Fig. 2 adopts for Fig. 1.The shortcoming that this bearing exists is: inner ring processed complex, and the part of composition is many, processed complex, and assembly process is various, and cost is higher; Bearing in use pillar easily loosens, and causes bearing not work on, and extra large size bearing is most after using has the value of repairing and re-using, and after dismounting, back-up ring pillar can not use, and need supplement new parts, therefore costly.

Summary of the invention

The present invention mainly for solving above-mentioned Problems existing, providing a kind of extra large size bearing, combination retainer being changed into pressing cage, and eliminate the little rib of inner ring, change check ring into, make structure become simple, improve efficiency of assembling, also reduce cost simultaneously.

For solving above-mentioned Problems existing, the technical solution adopted in the present invention is: a kind of extra large size bearing, comprise outer ring, inner ring, roller, retainer and check ring, described retainer is located between inner ring and outer ring, roller is evenly arranged in the pocket hole of described retainer, described check ring is arranged in the spring card slot on the outer peripheral surface of inner ring small end, check ring replaces the little rib of original structure, and described inner ring, roller, retainer and check ring form inseparable but dismountable inner assembly jointly; Described retainer is pressing cage.

Further, described check ring is provided with the first projection near the side of inner ring, the outer peripheral surface of described inner ring small end is provided with the age of a draught animal of establishing described first projection for card, check ring away from the side of inner ring be provided with for press roller to its play positioning action second protruding, described second protruding one end near roller has the plane of inclination of matching with described roller end face, and described inner ring, roller, retainer and check ring form inseparable but dismountable inner assembly jointly.

Further, described check ring is provided with otch, and the radial direction of described otch and check ring at an angle.

Further, the radial direction of described otch and check ring is 45° angle.

Further, described roller is solid construction.

The beneficial effect that the present invention brings is:

1, roller designs is solid construction by this programme, can simplify roller heat treatment process;

2, change combination retainer into pressing cage, thus the number of parts of composition bearing is reduced, simplify bearing assemble technique, also reduce cost simultaneously;

3, eliminate the little rib on inner ring, and change check ring into, make structure become simple, improve the machining accuracy of inner ring;

4, existing extra large size bearing, the roller of hollow is reinstalled after first pillar being loaded large back-up ring, then buckle little back-up ring to carry out welding rear riveted joint, bearing after improvement is easy to install, significantly improve efficiency of assembling, and the bearing after improvement is when damage parts changed by needs, after dismounting, other parts still can continue to use, and save expense.

Accompanying drawing explanation

Fig. 1 is the structural representation of prior art;

Fig. 2 is the structural representation of inner ring in Fig. 1;

Fig. 3 is structural representation of the present invention;

Fig. 4 is the partial enlarged drawing of Fig. 3;

Fig. 5 is the structural representation of inner ring of the present invention;

Fig. 6 is the structural representation of check ring of the present invention.

Mark in figure: 1, outer ring, 2, inner ring, 201, little rib, 202, large-flange, 203, the age of a draught animal, 3, roller, 4, retainer, 5, check ring, 501, first is protruding, and 502, second is protruding, and 503, otch, 6, weld, 7, pillar.

Embodiment

Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.

As shown in the figure, a kind of extra large size bearing, comprise outer ring 1, inner ring 2, roller 3, retainer 4 and check ring 5, described roller 3 is solid construction, described retainer 4 is located between inner ring 2 and outer ring 1, roller 3 is evenly arranged in the pocket hole of described retainer 4, described check ring 5 is arranged in the spring card slot on the outer peripheral surface of the small end of inner ring 2, check ring replaces the little rib of original structure, and described inner ring, roller, retainer and check ring form inseparable but dismountable inner assembly jointly.Described check ring 5 is provided with the first projection 501 near the side of inner ring 2, the outer peripheral surface of described inner ring 2 small end is provided with the age of a draught animal 203 of establishing described first projection 501 for card, check ring 5 is provided with the second projection 502 for pressing roller it being played to positioning action away from the side of inner ring 2, the second described projection 502 has the plane of inclination of matching with described roller end face near one end of roller, described inner ring 2, roller 3, retainer 4 and check ring 5 form inner assembly jointly, and described inner assembly is dismountable connection; Described retainer 5 is pressing cage, eliminates little rib 201, adds check ring 5, simplify assembly process.

Described check ring 5 is provided with otch 503, and at an angle, otch 503 can be 45° angle with the radial direction of check ring 5 to the radial direction of described otch 503 and check ring 5, and the object arranging otch is the installation and removal for the ease of check ring.

Technological scheme disclosed in this invention is not limited to single-row tapered roller bearing, also can be used on super-huge biserial or four-row tapered roller bearing.

Claims

1. an extra large size bearing, comprise outer ring (1), inner ring (2), roller (3) and retainer (4), described retainer (4) is located between inner ring (2) and outer ring (1), roller (3) is evenly arranged in the pocket hole of described retainer (4), it is characterized in that: also comprise check ring (5), described check ring (5) is arranged in the spring ring draw-in groove on the outer peripheral surface of inner ring small end, and described inner ring (2), roller (3), retainer (4) and check ring (5) jointly form inseparable but dismountable inner assembly; Described retainer (5) is pressing cage.

2. a kind of extra large size bearing according to claim 1, it is characterized in that: described check ring (5) is provided with the first projection (501) near the side of inner ring (2), the outer peripheral surface of described inner ring (2) small end is provided with the age of a draught animal (301) of establishing described first projection (501) for card, check ring (5) is provided with the second projection (502) for pressing roller it being played to positioning action away from the side of inner ring (2), described the second projection (502) has the plane of inclination of matching with described roller end face near one end of roller, described inner ring (2), roller (3), retainer (4) and check ring (5) form inseparable but dismountable inner assembly jointly.

3. a kind of extra large size bearing according to claim 1, is characterized in that: described check ring (5) is provided with otch (503), and the radial direction of described otch (503) and check ring (5) at an angle.

4. a kind of extra large size bearing according to claim 2, is characterized in that: described otch (503) is 45° angle with the radial direction of check ring (5).

5. a kind of extra large size bearing according to claim 1, is characterized in that: described roller (4) is solid construction.