CN221683406U - Bearing choke structure - Google Patents

Abstract

The utility model provides a flow-blocking and retaining structure of a bearing, comprising an inner ring, an outer ring, a roller and a retaining frame, wherein the retaining frame is conical, an annular boss is arranged at the outer wall position of the smaller end of the inner ring, the inner ring is provided with a radially inward groove at one axial end of the boss, the groove is used for positioning and installing the smaller end of the roller, the smaller end of the retaining frame is provided with a flow-blocking lip whose shape is matched with the boss, the flow-blocking lip and the boss form a flow-blocking structure for reducing the amount of oil inlet, the larger end of the retaining frame is provided with an oil storage structure corresponding to a plurality of rollers to ensure the lubrication performance of the bearing, the flow-blocking lip is added to the small end of the retaining frame, and the matching boss structure of the inner ring of the bearing is matched, so as to achieve a flow-blocking structure for reducing the amount of oil inlet; the oil storage tank is added to the large end of the retaining frame, so as to ensure the overall lubrication performance of the bearing, increase the area, and reduce the amount of oil output; and further reduce the full life cycle cost during the use of the bearing.

Description

Bearing choke structure

Technical Field

The utility model relates to a flow-blocking and protection structure of a bearing.

Background Art

The characteristics of tapered roller bearings are large rated load, high rotation accuracy, long service life, and while bearing radial loads, they can also withstand large axial loads. At present, tapered roller bearings are widely used in automobile gearboxes and differentials. Their structure generally includes an inner ring, an outer ring, rollers and a cage. The rollers are mounted on the cage and are correspondingly located between the inner ring and the outer ring. The cage is conical. Since there is a large gap between the small diameter end of the cage and the inner ring in the existing structure, under low torque conditions, the bearing is usually provided with a Nylon structure. However, the current Nylon structure has a large torque when rotating due to fluid resistance under oil lubrication; and there is no control ability for the oil inlet and outlet of the bearing at both ends; it is difficult to improve the oil lubrication quality of the customer's peripheral parts, and the bearing life is short.

Utility Model Content

In view of the deficiencies in the prior art, the utility model provides a flow-blocking and protection structure of a bearing.

To achieve the above-mentioned purpose, the utility model provides a flow-blocking and retaining structure of a bearing, comprising an inner ring, an outer ring, rollers and a retaining frame, wherein the rollers are mounted on the retaining frame and are correspondingly located between the inner ring and the outer ring, the retaining frame is conical, an annular boss is arranged at the outer wall position of the smaller end of the inner ring, the inner ring is provided with a radially inward groove at one axial end of the boss, the groove is used for positioning and installing the smaller end of the roller, the smaller end of the retaining frame is provided with a flow-blocking lip whose shape matches the boss, the flow-blocking lip and the boss form a flow-blocking structure for reducing the amount of oil inlet, and the larger end of the retaining frame is provided with an oil storage structure corresponding to a plurality of rollers to ensure the lubrication performance of the bearing.

The beneficial effects of the utility model are as follows: the utility model structure is provided with an annular boss at the outer wall position of the smaller end of the inner ring, and the inner ring is provided with a radially inward groove at one axial end of the boss. The boss and the baffle lip at the smaller end of the retaining frame cooperate to form a baffle structure, which can ensure that the lubrication of the bearing itself meets the requirements, reduce the amount of oil entering and exiting the bearing at both ends, thereby reducing the fluid resistance of the oil, achieving the low torque requirement and meeting the working condition requirements; preventing the intrusion of foreign matter and the entry and exit of excessive grease, and reducing the user's maintenance workload; by adding a baffle lip at the small end of the retaining frame and cooperating with the boss structure of the inner ring of the bearing, a baffle structure that reduces the amount of oil entering is achieved; by adding an oil storage tank at the large end of the retaining frame, the overall lubrication performance of the bearing is ensured, the area is increased, and the oil output is reduced; and the full life cycle cost during the use of the bearing is further reduced.

Furthermore, the oil storage structure includes a plurality of protrusions arranged at the larger end of the retaining frame, and a plurality of protrusions are provided with oil storage grooves on one side facing the roller, and the openings of the oil storage grooves are connected to the end surface of the larger end of the roller.

By adopting the above technical solution, the oil storage structure is provided by providing a plurality of rollers corresponding to a plurality of protrusions at the larger end of the retaining frame, the oil storage groove provided on the protrusion is provided corresponding to the end face of the larger end of the roller, the oil storage groove is connected with the lubricating oil on the end face of the roller, the oil storage groove can temporarily store the lubricating oil to reduce the inflow and outflow of the lubricating oil, ensure the overall lubrication performance of the bearing, increase the area, and reduce the oil output.

Further, the retaining frame forms a plurality of recesses between the plurality of protrusions, and the retaining frame is divided into a first connecting portion and a second connecting portion, the first connecting portion is provided with the protrusions and the recesses, a plug-in structure is provided between the first connecting portion and the second connecting portion, the plug-in structure includes a first plug-in arranged on the outer side of the first connecting portion and extending toward the second connecting portion, and a second plug-in arranged on the inner side of the second connecting portion and extending toward the first connecting portion, the first plug-in is provided with a first plug-in bevel, the bevel of the first plug-in bevel is arranged inwardly, the second plug-in is provided with a second plug-in bevel opposite to the first plug-in bevel, and the first plug-in and the second plug-in are connected by fitting the first plug-in bevel and the second plug-in bevel.

By adopting the above technical solution, the retaining frame is divided into a first connecting part and a second connecting part, the first connecting part is provided with a plurality of protrusions and a plurality of recesses, and the plug-in structure between the first connecting part and the second connecting part is plug-in connected by fitting the first plug-in bevel on the first plug-in and the second plug-in bevel on the second plug-in, the first connecting part and the second connecting part can be connected by the first plug-in bevel and the second plug-in bevel, the first plug-in bevel is aligned with the second plug-in bevel for sliding plug-in installation, and the installation is completed when the end of the first plug-in bevel is aligned with the end of the second plug-in bevel.

Furthermore, the second plugging inclined surface is arranged corresponding to the recess, and one end of the second plugging inclined surface is arranged in contact with the recess.

By adopting the above technical solution, the second plug-in bevel is arranged corresponding to the recessed portion to prevent the first connection portion and the second connection portion from being disengaged horizontally, thereby ensuring the stability of the retaining frame. The second plug-in bevel can abut against the first connection portion to prevent its horizontal movement.

Furthermore, a positioning mechanism is provided between the first plugging inclined surface and the second plugging inclined surface, and the positioning mechanism includes a positioning column provided on the first plugging inclined surface and extending downward, and a positioning groove provided on the second plugging inclined surface and cooperating with the positioning column for positioning.

By adopting the above technical solution, the positioning mechanism can improve the positioning effect, and the positioning column on the first plugging inclined surface and the positioning groove on the second plugging inclined surface can improve the installation positioning effect.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a three-dimensional structure in an embodiment of the utility model;

FIG2 is a schematic diagram of a cross-sectional structure in an embodiment of the present utility model;

FIG. 3 is a schematic diagram of the exploded structure of the retaining frame in the embodiment of the utility model.

DETAILED DESCRIPTION

The following is a further description of the embodiment of the utility model in conjunction with the accompanying drawings: as shown in the figure, the flow-blocking and retaining structure of the bearing includes an inner ring 1, an outer ring, rollers and a retaining frame 3, the rollers 2 are mounted on the retaining frame 3 and are correspondingly located between the inner ring 1 and the outer ring, the retaining frame 3 is conical, the inner ring 1 is provided with an annular boss 4 at the outer wall position of the smaller end, the inner ring 1 is provided with a radially inward groove 5 at one axial end of the boss 4, the groove 5 is used for positioning and installing the smaller end of the roller 2, the smaller end of the retaining frame 3 is provided with a flow-blocking lip 6 whose shape is adapted to the boss 4, the flow-blocking lip 6 and the boss 4 form a flow-blocking structure that reduces the amount of oil inlet, and the larger end of the retaining frame 3 is provided with an oil storage structure corresponding to a number of rollers 2 to ensure the lubrication performance of the bearing.

The oil storage structure includes a plurality of protrusions 7 arranged at the larger end of the retaining frame 3 , and a plurality of protrusions 7 are provided with oil storage grooves 8 on one side facing the roller 2 , and the openings of the oil storage grooves 8 are connected to the end faces of the larger ends of the rollers 2 .

The retaining frame 3 forms a plurality of recesses 9 between the plurality of protrusions 7. The retaining frame 3 is divided into a first connecting portion 10 and a second connecting portion 11. The first connecting portion 10 is provided with the protrusions 7 and the recesses 9. A plug-in structure is provided between the first connecting portion 10 and the second connecting portion 11. The plug-in structure includes a first plug-in 12 provided on the outer side of the first connecting portion 10 and extending toward the second connecting portion 11, and a second plug-in 13 provided on the inner side of the second connecting portion 11 and extending toward the first connecting portion 10. The first plug-in 12 is provided with a first plug-in bevel 14, the bevel of which is provided inwardly, and the second plug-in 13 is provided with a second plug-in bevel 15 opposite to the first plug-in bevel 14. The first plug-in 12 and the second plug-in 13 are connected by fitting the first plug-in bevel 14 and the second plug-in bevel 15.

The second plugging inclined surface 15 is arranged corresponding to the recess 9 , and one end of the second plugging inclined surface 15 is arranged in contact with the recess 9 .

A positioning mechanism is provided between the first plugging inclined surface 14 and the second plugging inclined surface 15, and the positioning mechanism includes a positioning column 16 provided on the first plugging inclined surface 14 and extending downward, and a positioning groove 17 provided on the second plugging inclined surface 15 and cooperating with the positioning column 16 for positioning. The first plugging inclined surface is provided with an embedding groove for the positioning column to move, and a compression spring is provided between the embedding groove and the positioning column. When the positioning column is aligned with the positioning groove, the compression spring is used to position and plug the positioning column with the positioning groove.

The above embodiment is only one of the preferred specific embodiments of the present invention. Common changes and substitutions made by those skilled in the art within the technical solution of the present invention are all included in the protection scope of the present invention.

Claims (3)

1. The utility model provides a choked flow damping structure of bearing, includes inner circle, outer lane, roller and holder, the roller install on the holder to correspond and be located between inner circle and the outer lane, the holder be conical, its characterized in that: the inner ring is provided with an annular boss at the outer wall of the smaller end, one axial end of the boss of the inner ring is provided with a radial inward channel, the channel is used for positioning and mounting the smaller end of the roller, the smaller end of the retainer is provided with a flow blocking lip with a shape adapted to the boss, the flow blocking lip and the boss form a flow blocking structure for reducing oil inlet quantity, and the larger end of the retainer is provided with an oil storage structure corresponding to a plurality of rollers so as to ensure the lubricating performance of the bearing; the oil storage structure comprises a plurality of protruding blocks arranged at the larger end of the retainer, an oil storage tank is arranged on one side of the protruding blocks, facing the roller, of the protruding blocks, and an opening of the oil storage tank is connected with the end face of the larger end of the roller; the retainer forms a plurality of concave parts between a plurality of lugs, the retainer components of a whole that can function independently is first connecting portion and second connecting portion, first connecting portion is provided with lug and concave part, be provided with grafting structure between first connecting portion and the second connecting portion, grafting structure is including setting up in the first plug-in components that the first connecting portion outside extends towards second connecting portion, setting up the second plug-in components that the second connecting portion inboard extends towards first connecting portion, first plug-in components are provided with first grafting inclined plane, the inclined plane of first grafting inclined plane sets up inwards, second plug-in components are provided with the second grafting inclined plane opposite with first grafting inclined plane position, first plug-in components and second plug-in components are laminated through first grafting inclined plane and second grafting inclined plane and are formed and are connected.

2. The method according to claim 1a choke damping structure of a bearing, the method is characterized in that: the second inserting inclined plane is arranged corresponding to the concave part, and one end of the second inserting inclined plane is attached to the concave part.

3. According to claim 2a choke damping structure of a bearing, the method is characterized in that: the positioning mechanism is arranged between the first inserting inclined plane and the second inserting inclined plane and comprises a positioning column which is arranged on the first inserting inclined plane and extends downwards and a positioning groove which is arranged on the second inserting inclined plane and is matched with the positioning column for positioning.