CN212202859U - A cage for thrust spherical roller bearing without ribs - Google Patents

Abstract

The utility model relates to the field of bearings, in particular to a cage for a thrust self-aligning roller bearing without ribs, comprising a cage body and two end covers, the two end covers are symmetrically arranged, and the two end covers are connected by a connecting column , the connecting columns are evenly arranged along the circumference of the two end caps, rollers are placed in the space between the two adjacent connecting columns, and the end caps between the two adjacent connecting columns are respectively provided with grooves, and the concave There is a lubricating column arranged in parallel with the connecting column in the groove, and the top of the lubricating column is provided with micro-holes for the lubricating liquid to flow out. The cage body is composed of four cage units. The connecting parts on the left and right ends of the column have radians, and a plurality of connecting parts at the same end can be spliced into a ring. The two ends of the connecting part are provided with snap joints that form a snap fit with the snap groove. The length of the lubricating column is less than the length of the connecting column. The column is a cavity structure.

Description

A cage for thrust spherical roller bearing without ribs

technical field

The utility model relates to the field of bearings, in particular to a cage for a thrust self-aligning roller bearing without a rib.

Background technique

The cage is an important part of the bearing. The bearing is usually composed of an inner ring, an outer ring, a plurality of rollers and a cage. The plurality of rollers are respectively installed in the corresponding pockets on the cage seat and then placed in the raceway formed by the inner ring and the outer ring. The cage cover is fixed on the upper end face of the cage seat.

The cage of the traditional non-rib thrust spherical roller bearing is an integral car body. When a certain part of the cage is seriously worn, the entire cage needs to be replaced. The replacement cost is too high, and the integrated cage When it is removed from the bearing, it is easy to cause damage to the bearing. If the surface of the roller is not sufficiently lubricated again, it is easy for the roller to have hard friction with the inner wall of the cage after rolling for a long time, which not only affects the bearing. and the operating life of the cage, and it is also very easy to cause the bearing to be scrapped.

Utility model content

The purpose of the present invention is to provide a novel cage for a thrust spherical roller bearing without ribs, so as to solve the problem that the existing bearings proposed by the above-mentioned background technology center are mostly integrated and the roller surface is not sufficiently lubricated.

In order to achieve the above purpose, the utility model provides the following technical solutions: a cage for a thrust spherical roller bearing without ribs, comprising a cage body and two end covers, the two end covers are symmetrically arranged, and the two end covers are arranged symmetrically. They are connected by connecting columns, the connecting columns are evenly arranged along the circumference of the two end caps, rollers are placed in the space between the two adjacent connecting columns, and the end caps between the two adjacent connecting columns are respectively provided with rollers. There is a groove, the groove is provided with a lubricating column parallel to the connecting column, the top of the lubricating column is provided with a micro hole for the lubricating liquid to flow out, the cage body is composed of four cage units, and the cage unit includes a plurality of connecting columns and connecting parts with radians located at the left and right ends of a plurality of connecting columns, a plurality of connecting parts at the same end can be spliced into a ring, the two ends of the four rollers at the connecting part are provided with clamping grooves, and both ends of the connecting part are provided with A card connector that forms a snap fit with the card slot.

Preferably, the length of the lubricating column is smaller than the length of the connecting column.

Preferably, the lubricating column has a cavity structure.

Preferably, the clamping slot is in the shape of a truncated cone, the bottom surface of the clamping slot is smaller than the groove surface, the two clamping joints on the adjacent connecting parts are in contact with each other, and the clamping joint is in the shape of a semi-circular truncated and oppositely arranged. The shape is the same.

Preferably, the radial section at the splicing point of two adjacent connecting parts is a complementary N-shape.

Preferably, only the two end surfaces of the four rollers at the connecting portion are provided with clamping grooves.

Compared with the prior art, the beneficial effect of the utility model is that: each groove is provided with a lubricating column, and the lubricating column discharges the lubricating liquid, so that the surface of the roller is fully lubricated, the friction force is reduced, and the service life of the roller is prolonged. , multiple cage units are combined into a complete cage. During assembly, the adjacent cage units fix the rollers through the card joints embedded in the card grooves, so that the rollers run stably between the inner and outer rings. When a plurality of cage units are seriously worn, the severely worn cage units can be removed and replaced with new cage units, and the replacement cost is low.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. , for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor. in:

Fig. 1 is the overall structure schematic diagram of the present utility model;

Fig. 2 is a schematic diagram of the structure of the lubricating column of the present invention;

Fig. 3 is the structural schematic diagram of the cage unit of the utility model;

FIG. 4 is a schematic diagram of the structure of the card slot of the present invention.

In the figure: 1 cage body, 2 end caps, 3 connecting columns, 4 grooves, 5 lubricating columns, 6 micro holes, 7 cage units, 8 connecting parts, 9 card slots, 10 card joints.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The utility model provides a cage for a thrust self-aligning roller bearing without ribs. Please refer to FIG. 1 . The cage includes a cage body 1 and two end covers 2 .

Referring to FIG. 1 , the two end caps 2 are symmetrically arranged, and the two end caps 2 are connected by a connecting column 3 , and the connecting column 3 is evenly arranged along the circumference of the two end caps 2 .

Referring to FIG. 1 , rollers are placed in the gap between two adjacent connecting columns 3 .

Please refer to FIG. 1 and FIG. 2 , the end caps 2 between the two adjacent connecting columns 3 are respectively provided with grooves 4 , and the grooves 4 are provided with lubricating columns 5 arranged in parallel with the connecting columns 3 . Micro-holes 6 through which the lubricating liquid flows out are provided.

Please refer to FIG. 1 and FIG. 3, the cage body 1 is composed of four cage units 7, and the cage unit 7 includes a plurality of connecting columns 3 and connecting parts 8 with arcs located at the left and right ends of the plurality of connecting columns 3. The connecting parts 8 at the same end can be spliced into a ring shape. The two ends of the four rollers at the connecting part 8 are provided with card grooves 9 , and the two ends of the connecting part 8 are provided with card joints 10 that form a snap fit with the card grooves 9 . .

Please refer to FIG. 1 and FIG. 2 , the length of the lubricating column 5 is less than the length of the connecting column 3 , and the lubricating column 5 is a cavity structure.

Please refer to FIG. 1 and FIG. 3 , the clamping slot 9 is in the shape of a truncated cone, the bottom surface of the clamping slot 9 is smaller than the groove surface, the two clamping joints 10 on the adjacent connecting parts 8 are in contact with each other, and the clamping joints 10 are in the shape of a semi-circular truncated cone and are oppositely arranged. The shape of the two card joints 10 is consistent with the shape of the card slot 9. The card slot 9 is in the shape of a truncated cone, which is convenient for the card joint 10 to be quickly inserted into the card slot 9 and also convenient for the card joint 10 to be removed. The cage formed by the combination of the frame unit 7 is more stable, and it is not easy for the rollers to disengage.

Please refer to FIG. 3 , the radial cross-section of the splicing part of two adjacent connecting parts 8 is a complementary N shape. The N shape can prevent the dislocation of the splicing part and increase the connection strength. It is preferable that the two N shapes of the same connecting part 8 are symmetrically arranged, Easy to assemble and disengage the cage unit.

Please refer to FIG. 1 and FIG. 4 , only the two end surfaces of the four rollers at the connecting portion 8 are provided with clamping grooves 9

In specific use, the adjacent cage units 7 are fixed to the rollers through the card joints 10 embedded in the card grooves 9. When a certain cage unit 7 is severely worn, the severely worn cage unit 7 can be removed. Replacing a new retainer unit 7, the replacement cost is low, the card slot 9 is in the shape of a truncated cone, the bottom surface of the card slot 9 is smaller than the groove surface, and the ends of the two oppositely arranged card joints 10 abut each other, so that the retainer unit 7 is composed of The cage is more stable, and grooves 4 are respectively provided on the end cover 2 between the two connecting columns 3, so that the contact area between the roller and the cage body 1 is reduced during the rotation of the cage body 1, reducing friction and increasing the roller. The service life of the sub and the cage.

Although the present invention has been described above with reference to the embodiments, various modifications may be made and equivalents may be substituted for parts thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features in the disclosed embodiments of the present invention can be combined with each other in any way, and the description of these combinations is not exhaustive in this specification. For the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (6)

1. A cage for a thrust spherical roller bearing without ribs, comprising a cage body (1) and two end covers (2), characterized in that: the two end covers (2) are symmetrically arranged, and the two The end caps (2) are connected by connecting posts (3), the connecting posts (3) are evenly arranged along the circumference of the two end caps (2), and two adjacent connecting posts (3) Rollers are placed in the space between them, and grooves (4) are respectively provided on the end covers (2) between the two adjacent connecting columns (3), and the grooves (4) are provided with grooves (4). A lubricating column (5) is arranged in parallel with the connecting column (3), the top of the lubricating column (5) is provided with a micro-hole (6) for the outflow of lubricating liquid, and the cage body (1) is held by four A frame unit (7) is formed, and the holder unit (7) includes a plurality of the connecting columns (3) and connecting parts (8) with radians located at the left and right ends of the plurality of connected columns (3). The connecting portion (8) at the end can be spliced into a ring shape, the two ends of the four rollers at the connecting portion (8) are provided with clamping grooves (9), and the two ends of the connecting portion (8) are provided with A snap joint (10) is formed with the snap slot (9). 2 . The cage for a thrust spherical roller bearing without ribs according to claim 1 , wherein the length of the lubricating column ( 5 ) is smaller than the length of the connecting column ( 3 ). 3 . 3 . The cage for a thrust spherical roller bearing without ribs according to claim 1 , wherein the lubricating column ( 5 ) has a cavity structure. 4 . 4. A cage for a thrust spherical roller bearing without ribs according to claim 1, characterized in that: the clamping groove (9) is in the shape of a truncated cone, and the groove bottom surface of the clamping groove (9) is smaller than On the groove surface, the two snap joints (10) on the adjacent connecting parts (8) are in contact with each other, and the snap joints (10) are in the shape of a semi-circular truncated cone and are arranged opposite to each other. The formed shape is consistent with the shape of the card slot (9). 5. A cage for a thrust spherical roller bearing without ribs according to claim 1, characterized in that: the radial cross-section of the splicing point of two adjacent connecting parts (8) is a complementary N shape. 6. A cage for a thrust spherical roller bearing without ribs according to claim 1, characterized in that: only the two end surfaces of the four rollers at the connecting portion (8) are provided with the card slot (9).

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