Bearing with automatic lubricating function

Abstract

The bearing with the automatic lubricating function comprises an outer ring, an inner ring and a plurality of balls, the balls are located between the outer ring and the inner ring, four oil storage cavities are evenly formed in the side wall of the outer ring, filling holes are formed in the side walls of the oil storage cavities, and the filling holes are communicated with the oil storage cavities. Oil outlets are formed in the side walls of the sides, close to the balls, of the oil storage cavities, extrusion assemblies are arranged in the oil storage cavities, and through mutual cooperation of the outer ring, the inner ring, the oil storage cavities, the extrusion assemblies and the like, when lubricating grease is injected into the bearing at a time, after the inner ring of the bearing is filled with the lubricating grease, redundant lubricating grease can be collected in the oil storage cavities, and therefore the lubricating grease can be fully injected into the bearing. Lubricating grease volatilized by heat generated in the rotating process of the bearing can be injected into the bearing inner ring through the acting force of the spring for lubricating, lubricating grease pollution cannot be caused, lubricating grease can be automatically supplemented into the bearing inner ring, and the lubricating effect on the bearing is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of bearings, in particular to a bearing with an automatic lubrication function. Background Art

[0002] Bearings are one of the commonly used components in the assembly of mechanical equipment. Their main function is to limit the shaft, ensure the rotation accuracy of the shaft, enhance the operating accuracy of the equipment, and extend the service life of the equipment.

[0003] Since bearings generate heat during high-speed rotation, grease is usually injected for lubrication in order to ensure the rotation accuracy and friction coefficient of the bearings. The heat generated during the operation of the bearings will cause a small amount of grease to evaporate, so grease needs to be injected into the bearings regularly. However, since bearings are generally located at the connection between the shaft and the equipment, it is inconvenient to inject grease, and the effect of automatic lubrication cannot be achieved, which increases the number of manual grease injections and reduces the service life of the bearings. Utility Model Content

[0004] The purpose of the utility model is to provide a bearing with automatic lubrication function to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bearing with automatic lubrication function, comprising an outer ring, an inner ring and balls, a plurality of balls are provided, the balls are located between the outer ring and the inner ring, four oil storage chambers are evenly opened inside the side wall of the outer ring, the side walls of the oil storage chambers are each provided with a filling hole, the side wall of the oil storage chamber close to the ball is provided with an oil outlet hole, the oil storage chamber is provided with an extrusion assembly, and a sealing structure is provided between the outer ring and the inner ring.

[0006] Preferably, the extrusion assembly includes a push plate, the side walls of the push plate are fixedly connected with two positioning rods, the side walls of the oil storage chamber are provided with two positioning holes, the positioning rods and the positioning holes match each other, and the side walls of the positioning rods are sleeved with springs.

[0007] Preferably, the sealing structure comprises a sealing cover plate, the sealing cover plate is located on the left and right sides of the ball, the inner wall of the outer ring and the outer wall of the inner ring are respectively provided with annular grooves, and the sealing cover plate is located in the annular grooves.

[0008] Preferably, a sealing ring is fixedly connected to the side wall of the push plate, a sealing groove is formed on the side wall of the oil storage chamber, and the sealing ring abuts against the sealing groove.

[0009] Preferably, a one-way valve is installed in the filling hole.

[0010] Preferably, the side wall of the positioning rod is fixedly connected to a limiting block, the side wall of the positioning hole is provided with a limiting groove, and the limiting block is slidably connected to the limiting groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) In this technical solution, the outer ring, the inner ring, the oil storage chamber and the extrusion assembly cooperate with each other. When grease is injected into the bearing once, after the inner ring of the bearing is fully filled with grease, the excess grease can be collected in the oil storage chamber. The grease volatilized by the heat generated by the bearing during rotation can be injected into the inner ring of the bearing for lubrication through the action of the spring. This will not cause grease contamination, but can automatically replenish grease into the inner ring of the bearing, effectively improving the lubrication effect of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the utility model;

[0014] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0015] Figure 3 For this utility model Figure 2 A in the enlarged view;

[0016] Figure 4 For this utility model Figure 2 Enlarged view of point B in .

[0017] In the figure: 1. Outer ring; 2. Inner ring; 3. Ball; 4. Oil storage chamber; 5. Push plate; 6. Positioning rod; 7. Positioning hole; 8. Spring; 9. Filling hole; 10. Oil outlet hole; 11. Sealing cover plate; 12. Annular groove; 13. Sealing ring; 14. Sealing groove; 15. One-way valve. Implementation

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figures 1 to 4The utility model provides a technical solution: a bearing with automatic lubrication function, including an outer ring 1, an inner ring 2 and a ball 3, a plurality of balls 3 are provided, the ball 3 is located between the outer ring 1 and the inner ring 2, four oil storage chambers 4 are evenly opened inside the side wall of the outer ring 1, and the side walls of the oil storage chambers 4 are all opened with filling holes 9, and a one-way valve 15 is installed in the filling hole 9. The one-way valve 15 can be used to prevent the grease in the oil storage chamber 4 from overflowing, and the oil storage chamber 4 is sealed. The side wall of the oil storage chamber 4 close to the ball 3 is opened with an oil outlet hole 10, and the oil storage chamber 4 is provided with an extrusion component, and a sealing structure is provided between the outer ring 1 and the inner ring 2.

[0020] See also Figure 2 and Figure 3 The extrusion assembly includes a push plate 5, a sealing ring 13 is fixedly connected to the side wall of the push plate 5, a sealing groove 14 is provided on the side wall of the oil storage chamber 4, the sealing ring 13 abuts against the sealing groove 14, and the grease can be prevented from adhering to and remaining on the side wall of the oil storage chamber 4, the side wall of the push plate 5 is fixedly connected with two positioning rods 6, the side wall of the oil storage chamber 4 is provided with two positioning holes 7, the positioning rods 6 and the positioning holes 7 match each other, the side wall of the positioning rod 6 is fixedly connected with a limiting block, the side wall of the positioning hole 7 is provided with a limiting groove, the limiting block is slidably connected to the limiting groove, the positioning rod 6 can be limited, and the operation of the positioning rod 6 is stable, and the side wall of the positioning rod 6 is sleeved with a spring 8.

[0021] See also Figure 2 and Figure 4 The sealing structure includes a sealing cover plate 11, which is located on the left and right sides of the ball 3. The inner wall of the outer ring 1 and the outer wall of the inner ring 2 are respectively provided with annular grooves 12, and the sealing cover plate 11 is located in the annular grooves 12. The ball 3 can be sealed by the sealing cover plate 11. On the one hand, it can prevent dust and impurities from adhering to the grease and affecting the lubrication effect. On the other hand, the grease can be sealed to reduce the probability of grease overflow.

[0022] Through the mutual cooperation among the outer ring 1, the inner ring 2, the oil storage chamber 4 and the extrusion assembly, when grease is injected into the bearing at a single time, after the grease fills the inner ring 2 of the bearing, the excess grease can be collected in the oil storage chamber 4, and the grease volatilized by the heat generated by the bearing during rotation can be injected into the inner ring 2 of the bearing for lubrication through the action of the spring 8. It will not cause grease contamination, but can automatically replenish grease into the inner ring 2 of the bearing, effectively improving the lubrication effect of the bearing.

[0023] Working principle: When the bearing needs to be filled with grease during use, a glue gun can be inserted into the filling hole 9 to inject grease into the oil storage chamber 4. The grease enters between the outer ring 1 and the inner ring 2 through the oil outlet hole 10 and is sealed with a sealing cover plate 11 to prevent grease leakage. When the grease inside the bearing is filled, excess grease will be filled in the oil storage chamber 4. When the bearing rotates at high speed, heat will be generated to volatilize part of the grease. When there is a lack of grease in the bearing, the rebound force of the spring 8 can drive the push plate 5 to squeeze the grease in the oil storage chamber 4, so that the grease can be filled in the bearing through the oil outlet hole 10, and the ball 3 can be lubricated in time to avoid the increase of friction of the ball 3 due to lack of grease, which will affect the rotation accuracy of the shaft body. In addition, adding grease once can extend the lubrication time of the bearing, and there is no need to add grease multiple times, thereby improving its lubrication effect.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing with automatic lubrication function, comprising an outer ring (1), an inner ring (2) and balls (3), wherein a plurality of balls (3) are provided and the balls (3) are located between the outer ring (1) and the inner ring (2), characterized in that: Four oil storage chambers (4) are evenly arranged inside the side wall of the outer ring (1), each of the side walls of the oil storage chambers (4) is provided with a filling hole (9), and an oil outlet hole (10) is arranged on the side wall of the oil storage chamber (4) close to the ball (3), and each of the oil storage chambers (4) is provided with an extrusion component, and a sealing structure is provided between the outer ring (1) and the inner ring (2).

2. The bearing with automatic lubrication function according to claim 1, characterized in that: The extrusion assembly comprises a push plate (5), the side walls of the push plate (5) are fixedly connected to two positioning rods (6), the side walls of the oil storage chamber (4) are provided with two positioning holes (7), the positioning rods (6) and the positioning holes (7) match each other, and the side walls of the positioning rods (6) are sleeved with springs (8).

3. The bearing with automatic lubrication function according to claim 1, characterized in that: The sealing structure comprises a sealing cover plate (11), the sealing cover plate (11) being located on the left and right sides of the ball (3), the inner wall of the outer ring (1) and the outer wall of the inner ring (2) being respectively provided with an annular groove (12), and the sealing cover plate (11) being located in the annular groove (12).

4. The bearing with automatic lubrication function according to claim 2, characterized in that: A sealing ring (13) is fixedly connected to the side wall of the push plate (5), a sealing groove (14) is formed on the side wall of the oil storage chamber (4), and the sealing ring (13) abuts against the sealing groove (14).

5. The bearing with automatic lubrication function according to claim 1, characterized in that: A one-way valve (15) is installed in the filling hole (9).

6. The bearing with automatic lubrication function according to claim 2, characterized in that: The side wall of the positioning rod (6) is fixedly connected to a limiting block, the side wall of the positioning hole (7) is provided with a limiting groove, and the limiting block is slidably connected to the limiting groove.

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