CN216922852U

CN216922852U - Split type double-row cylindrical roller bearing

Info

Publication number: CN216922852U
Application number: CN202122963126.7U
Authority: CN
Inventors: 杨玉坤; 孙功兵; 张福英
Original assignee: Wafangdian Bozhong Heavy Machinery Bearing Manufacturing Co ltd
Current assignee: Wafangdian Bozhong Heavy Machinery Bearing Manufacturing Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-07-08
Anticipated expiration: 2031-11-30

Abstract

The utility model discloses a split double-row cylindrical roller bearing, which comprises an inner shaft structure, wherein a retainer is sleeved on the outer side of the inner shaft structure, an outer bearing is sleeved on the outer side of the retainer, the inner shaft structure comprises an inner bearing, a plurality of rollers, two sliding rings and two dust rings, the two sliding rings are respectively positioned on two sides of the inner bearing, the two sliding rings are both in sliding connection with the inner bearing, a plurality of short spring telescopic rods are fixedly connected on the outer sides of the two sliding rings, the two sliding rings are both fixedly connected with the corresponding dust rings through the adjacent short spring telescopic rods, two first sliding grooves are formed in the outer wall of the inner bearing, and a plurality of rolling rods are rotatably connected on the retainer. The service life of the bearing is prolonged.

Description

Split type double-row cylindrical roller bearing

Technical Field

The utility model relates to the technical field of bearings, in particular to a split type double-row cylindrical roller bearing.

Background

The cylindrical rollers and the roller paths are line contact bearings, the load capacity is high, the radial load is mainly borne, the internal structure of the double-row cylindrical roller bearing adopts the mutually vertical and crossed arrangement of the rollers, and the retainer is arranged between the rollers, so that the inclination of the rollers or the mutual grinding between the rollers can be prevented, the increase of the rotating torque is effectively prevented, and the double-row cylindrical roller bearing is widely applied to various large-scale equipment.

The prior patent No. CN205559559U discloses a double-row cylindrical roller bearing, wherein a U-shaped oil filling groove is formed in the circumferential direction of the outer side wall of an outer ring, a plurality of oil filling holes are uniformly distributed in the oil filling groove, and the oil filling holes are respectively communicated with a rolling groove and directly fill oil on a cylindrical support wall of a cylindrical roller; current patent number CN205173225U discloses a biserial cylindrical roller bearing, is left and right two outer lanes through establishing the outer lane branch, and the convenience is to the quick installation of bearing, and the setting of two sealing washers improves the leakproofness of bearing.

Above-mentioned patent does not all consider the wearing and tearing of holder to the ball, and when the bearing is protected improperly, perhaps lubricating oil is not enough, holder itself also can cause wearing and tearing to the ball, reduces the bearing life-span, and all lacks special dustproof construction, and it is dustproof only to lean on the installation sealing washer, and the effect is limited, and inside the dust got into the bearing, causes bearing wear or scratch easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a split double-row cylindrical roller bearing, which solves the problems that the abrasion of a retainer to balls is not considered, when the bearing is not maintained properly or lubricating oil is insufficient, the retainer can also abrade the balls, the service life of the bearing is shortened, special dustproof structures are lacked, a sealing ring is installed for dust prevention alone, the effect is limited, and dust enters the bearing to easily cause the abrasion or scratch of the bearing.

In order to achieve the purpose, the utility model provides the following technical scheme: a split double-row cylindrical roller bearing comprises an inner shaft structure, wherein a retainer is sleeved on the outer side of the inner shaft structure, the outer side of the retainer is sleeved with an outer bearing, the inner shaft structure comprises an inner bearing, a plurality of rollers, two slip rings and two dust rings, the two slip rings are respectively positioned at two sides of the inner bearing, and the two slip rings are connected with the inner bearing in a sliding way, the outer sides of the two slip rings are fixedly connected with a plurality of short spring telescopic rods, the two slip rings are fixedly connected with corresponding dust rings through a plurality of adjacent short spring telescopic rods, the outer wall of the inner bearing is provided with two first sliding chutes, the plurality of rollers are respectively positioned in the two first sliding chutes, and it is a plurality of the roller uses the inner bearing axle center to distribute as the equidistant array in center, it is connected with a plurality of rolling bars to rotate on the holder, and is a plurality of two liang of rolling bars correspond, and two that correspond the rolling bar is equallyd divide and is do not laminated with the both sides of adjacent roller.

As a preferable technical scheme of the utility model, inner retaining rings are fixedly arranged on two sides of the inner wall of the outer bearing, and the two inner retaining rings are respectively positioned on two sides of the inner bearing.

In a preferred embodiment of the present invention, an inner wall of the retainer is engaged with an outer wall of the inner bearing, and an inner wall of the outer bearing is slidably connected to the plurality of rollers.

As a preferred technical scheme of the utility model, the outer sides of the two dust rings are fixedly connected with rubber rings, and one sides of the two rubber rings are attached to the inner sides of the corresponding inner check rings.

As a preferable technical scheme of the utility model, a gap is reserved between the outer sides of the two rubber rings and the inner wall of the outer bearing.

As a preferable technical scheme of the utility model, the outer sides of the two inner retainer rings are respectively connected with an outer retainer ring in a clamping manner, and the inner diameters of the two outer retainer rings are smaller than that of the inner bearing.

As a preferable technical scheme of the utility model, one side of each of the two outer check rings is fixedly connected with a check ring, and the thickness of each of the two check rings corresponds to that of the adjacent inner check ring.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the retainer is provided with the rolling rod corresponding to the roller, so that the rolling rod not only can play a role of limiting the roller, but also can rotate, and can reduce friction with the roller, thereby changing the problem that the roller is abraded by the traditional retainer and prolonging the service life of the bearing.

2. According to the dustproof structure, the dustproof ring is installed, the rubber ring is arranged on the outer side of the dustproof ring, so that the dustproof ring can be conveniently clamped into the inner check ring, after the dustproof ring is installed, the dustproof ring rebounds through the short spring telescopic rod to form sealing, dust is prevented from entering the dustproof ring, the outer check ring is installed on the outer side of the inner check ring, the dustproof effect is improved, and compared with a traditional dustproof mode, the dustproof structure is more obvious in dustproof effect.

Drawings

FIG. 1 is a schematic view of an inner shaft structure and a cage of the present invention;

FIG. 2 is a schematic view of the frame structure of the present invention;

FIG. 3 is a partial schematic view of the utility model at A of FIG. 2.

In the figure: 1. an inner shaft structure; 2. a holder; 3. an outer bearing; 4. an inner bearing; 5. a roller; 6. a slip ring; 7. a dust ring; 8. a short spring telescopic rod; 9. a first chute; 10. rolling a rod; 11. an inner retainer ring; 12. a rubber ring; 13. a gap; 14. an outer retainer ring; 15. and (4) a baffle ring.

Detailed Description

The technology in the embodiment of the utility model will be described in conjunction with the drawings in the embodiment of the utility model

The embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution of a split type double-row cylindrical roller bearing:

the first embodiment is as follows:

according to the drawings 1-3, the inner shaft structure comprises an inner shaft structure 1, a retainer 2 is sleeved on the outer side of the inner shaft structure 1, an outer bearing 3 is sleeved on the outer side of the retainer 2, two first chutes 9 are formed in the outer wall of the inner bearing 4, a plurality of rollers 5 are respectively positioned in the two first chutes 9, the plurality of rollers 5 are distributed in an array with the axis of the inner bearing 4 as the center at equal intervals, a plurality of rolling rods 10 are rotatably connected to the retainer 2, the plurality of rolling rods 10 correspond to each other in pairs, the two corresponding rolling rods 10 are respectively attached to two sides of the adjacent rollers 5, the inner wall of the retainer 2 is connected with the outer wall of the inner bearing 4 in a clamping manner, the inner wall of the outer bearing 3 is connected with the plurality of rollers 5 in a sliding manner, outer check rings 14 are respectively connected to the outer sides of the two inner check rings 11 in a clamping manner, the inner diameters of the two outer check rings 14 are smaller than the inner diameter of the inner bearing 4, and a check ring 15 is fixedly connected to one side of the two outer check rings 14, the thickness of both retaining rings 15 corresponds to the thickness of the adjacent inner retaining ring 11.

When the roller retainer is used, the roller rod 10 corresponding to the roller 5 is arranged on the retainer 2, so that the roller rod 10 not only can play a role of limiting the roller 5, but also can reduce the friction between the rotatable roller rod 10 and the roller 5, the problem that the roller is abraded by the traditional retainer is solved, and the service life of the bearing is prolonged.

Example two:

according to the drawings of fig. 1-3, the inner shaft structure 1 comprises an inner bearing 4, a plurality of rollers 5, two sliding rings 6 and two dust rings 7, wherein the two sliding rings 6 are respectively positioned at two sides of the inner bearing 4, the two sliding rings 6 are both connected with the inner bearing 4 in a sliding manner, the outer sides of the two sliding rings 6 are both fixedly connected with a plurality of short spring telescopic rods 8, the two sliding rings 6 are both fixedly connected with the corresponding dust rings 7 through the adjacent short spring telescopic rods 8, inner retainer rings 11 are fixedly arranged at two sides of the inner wall of the outer bearing 3, and the two inner retainer rings 11 are respectively positioned at two sides of the inner bearing 4;

the equal fixed connection rubber circle 12 in the outside of two dust rings 7, the inboard that corresponds interior retaining ring 11 is all laminated to one side of two rubber circles 12, all leaves clearance 13 between the outside of two rubber circles 12 and the inner wall of outer bearing 3.

When the dustproof device is used, the dustproof ring 7 is installed, the rubber ring 12 is arranged on the outer side of the dustproof ring 7, so that the dustproof ring can be conveniently clamped into the inner check ring 11, after the dustproof ring 7 is installed, the dustproof ring 7 rebounds through the short spring telescopic rod 8 to form sealing, dust is prevented from entering, the outer check ring 14 is installed on the outer side of the inner check ring 11, the dustproof effect is improved, and compared with a traditional dustproof mode, the dustproof effect is more obvious.

In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a split type double-row cylindrical roller bearing, includes inner shaft structure (1), its characterized in that: the outer side of the inner shaft structure (1) is sleeved with a retainer (2), the outer side of the retainer (2) is sleeved with an outer bearing (3), the inner shaft structure (1) comprises an inner bearing (4), a plurality of rollers (5), two sliding rings (6) and two dust rings (7), the two sliding rings (6) are respectively positioned on two sides of the inner bearing (4), the two sliding rings (6) are respectively connected with the inner bearing (4) in a sliding manner, the outer sides of the two sliding rings (6) are respectively and fixedly connected with a plurality of short spring telescopic rods (8), the two sliding rings (6) are respectively and fixedly connected with the corresponding dust rings (7) through the adjacent short spring telescopic rods (8), the outer wall of the inner bearing (4) is provided with two first chutes (9), the plurality of rollers (5) are respectively positioned in the two first chutes (9), and the plurality of rollers (5) are distributed in an equidistant array by taking the axis of the inner bearing (4) as the center, the roller pin rolling device is characterized in that a plurality of rolling rods (10) are rotatably connected to the retainer (2) in a multiple mode, the rolling rods (10) correspond to each other in a pairwise mode, and the corresponding rolling rods (10) are attached to two sides of adjacent roller pins (5) in an equalling mode.

2. The split double-row cylindrical roller bearing according to claim 1, characterized in that: inner check rings (11) are fixedly arranged on two sides of the inner wall of the outer bearing (3), and the two inner check rings (11) are respectively positioned on two sides of the inner bearing (4).

3. The split double-row cylindrical roller bearing according to claim 1, characterized in that: the inner wall of the retainer (2) is connected with the outer wall of the inner bearing (4) in a clamping manner, and the inner wall of the outer bearing (3) is connected with the plurality of rollers (5) in a sliding manner.

4. The split double-row cylindrical roller bearing according to claim 1, characterized in that: two equal fixed connection rubber circle (12) in the outside of dust ring (7), two one side of rubber circle (12) is all laminated and is corresponded the inboard of interior retaining ring (11).

5. The split double-row cylindrical roller bearing according to claim 4, wherein: gaps (13) are reserved between the outer sides of the two rubber rings (12) and the inner wall of the outer bearing (3).

6. The split double-row cylindrical roller bearing according to claim 2, characterized in that: two the outside of interior retaining ring (11) is all the block and is connected with outer retaining ring (14), two the internal diameter of outer retaining ring (14) is less than the internal diameter of inner bearing (4).

7. The split double-row cylindrical roller bearing according to claim 6, wherein: two equal fixedly connected with of one side of outer retaining ring (14) keeps off ring (15), two the thickness of keeping off ring (15) all corresponds with the thickness of adjacent interior retaining ring (11).