Self-lubricating deep groove ball bearing

Abstract

A self-lubricating deep groove ball bearing relates to a deep groove ball bearing, and is characterized in that spherical rollers (4) are fully arranged in a semicircular section ring groove (12), an inner sleeve ring (3) is sleeved in an annular semi-groove A (7), the inner sleeve ring (3) and an outer sleeve ring (2) are combined to form an outer ring, an arc-shaped ring groove (8) and the semicircular section ring groove (12) form deep groove clamping for the plurality of spherical rollers (4), an inner ring (5) is sleeved in the outer ring, and the inner ring (5) is sleeved in the outer ring. The arc transition (15) is in contact with the plurality of spherical rollers (4), the annular bulge (17) is in clearance fit with the inner wall (9) of the outer lantern ring, and the other end of the outer wall (16) of the inner ring is in clearance fit with the inner wall (14) of the inner lantern ring; according to the utility model, the plurality of spherical rollers are fully arranged in the semicircular cross-section annular groove, the arc-shaped annular groove and the semicircular cross-section annular groove form deep groove raceway clamping for the plurality of spherical rollers, and the arc-shaped transition forms an angular contact inner raceway, so that the purposes that the bearing oil is easy to lubricate and the oil is not easy to leak after the spherical rollers are fully arranged are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a deep groove ball bearing, especially a self-lubricating deep groove ball bearing. BACKGROUND

[0002] The deep groove ball bearing is suitable for high speed rotation even extremely high speed rotation, and is very durable, and does not need to be maintained frequently. The bearing has small friction coefficient, high limit speed, and various size range and form, and is applied to industries such as precision instrument, low noise motor, automobile, motorcycle and general machinery, and is the most widely used bearing in the mechanical industry. The bearing mainly bears radial load, and can also bear a certain amount of axial load. The ball assembly of the full assembly type deep groove ball bearing has a process flow of needing to be punched or notched, and the deep groove ball bearing has defects of not being tightly closed, being easy to leak oil and the like after being punched or notched, which affect normal use. The deep groove ball bearing needs sufficient lubricating oil to cooperate to ensure smoothness and service life of the bearing body when rotating at high speed, and the traditional deep groove ball bearing is easy to throw out bearing oil when running, and oil shortage is easy to occur. SUMMARY

[0003] In order to overcome the defects in the background art, the utility model discloses a self-lubricating deep groove ball bearing, a plurality of spherical rollers are fully assembled in the semicircular cross section ring groove, the arc-shaped ring groove and the semicircular cross section ring groove form deep groove raceways to clamp the plurality of spherical rollers, and the arc-shaped transition forms an angular contact inner raceway, so that the bearing oil is easy to lubricate and not easy to run out after the spherical rollers are fully assembled.

[0004] In order to achieve the object of the application, the utility model adopts the following technical scheme:

[0005] A self-lubricating deep groove ball bearing, comprising an outer ring, spherical rollers and an inner ring, the outer ring comprises an outer sleeve ring and an inner sleeve ring, an annular semislit A is arranged at one end of the inner edge of the outer sleeve ring, an arc-shaped ring groove is arranged on the side wall of the annular semislit A close to the inner wall of the outer sleeve ring, an annular semislit B is arranged at one end of the inner edge of the inner sleeve ring, a semicircular cross section ring groove is arranged on the bottom of the annular semislit B, one side of the mouth portion of the semicircular cross section ring groove is close to the inner wall of the inner sleeve ring, and the other side of the mouth portion is located on the side wall of the inner sleeve ring, the spherical rollers are fully assembled in the semicircular cross section ring groove, the inner sleeve ring is sleeved in the annular semislit A, the inner sleeve ring and the outer sleeve ring are combined to form the outer ring, the arc-shaped ring groove and the semicircular cross section ring groove form deep groove clamping for the plurality of spherical rollers, the diameter of the inner wall of the outer sleeve ring is greater than the diameter of the inner wall of the inner sleeve ring, a ring-shaped protrusion is sleeved at one end of the outer wall of the inner ring, an arc-shaped transition is arranged at the joint of the ring-shaped protrusion and the outer wall of the inner ring, the inner ring is sleeved in the outer ring, the arc-shaped transition is in contact with the plurality of spherical rollers, the ring-shaped protrusion and the inner wall of the outer sleeve ring are in clearance fit, and the other end of the outer wall of the inner ring and the inner wall of the inner sleeve ring are in clearance fit.

[0006] The self-lubricating deep groove ball bearing described herein has the same curvature as the spherical rollers in terms of the arc-shaped annular groove, the semi-circular cross-section annular groove, and the arc transition.

[0007] The self-lubricating deep groove ball bearing has an outer edge surface of the inner ring that fits tightly against the bottom of the annular half-groove A.

[0008] The self-lubricating deep groove ball bearing has a blind threaded hole on the outer edge of the inner ring and a through hole in the annular semi-groove A on the outer edge of the outer ring at a position corresponding to the blind threaded hole. The screw passes through the through hole and is screwed into the blind threaded hole.

[0009] The self-lubricating deep groove ball bearing has an enlarged diameter at the outer opening of the perforation, and the screw head is located inside the enlarged diameter.

[0010] In the self-lubricating deep groove ball bearing, after the spherical rollers are fully filled in the semi-circular cross-section annular groove, the inner edge of the multiple spherical rollers combined to form an annular structure is flush with the inner wall of the inner ring.

[0011] Due to the adoption of the above technical solution, this utility model has the following beneficial effects:

[0012] The self-lubricating deep groove ball bearing of this invention fully assembles multiple spherical rollers into a semi-circular cross-section annular groove, places an inner ring within the annular semi-groove A, and combines the outer ring and inner ring to form an outer ring. The arc-shaped annular groove and the semi-circular cross-section annular groove clamp the multiple spherical rollers into a deep groove raceway. The inner ring fits inside the outer ring, and the arc transition forms an angular contact inner raceway. This achieves the purpose of easy lubrication and reduced oil leakage of the bearing oil after being fully assembled with spherical rollers. This invention features a compact design, high load-bearing capacity, and long-lasting lubrication, effectively extending the service life of the bearing. Attached Figure Description

[0013] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0014] Fig. 2 This is a three-dimensional structural diagram of the outer ring of this utility model;

[0015] Fig. 3 This is a three-dimensional structural diagram of the inner ring of this utility model;

[0016] Fig. 4 This is a three-dimensional structural diagram of the inner ring of this utility model.

[0017] In the diagram: 1. Screw; 2. Outer ring; 3. Inner ring; 4. Spherical roller; 5. Inner ring; 6. Through hole; 7. Annular semi-groove A; 8. Arc-shaped annular groove; 9. Inner wall of outer ring; 10. Expanded diameter; 11. Blind screw hole; 12. Semi-circular cross-section annular groove; 13. Annular semi-groove B; 14. Inner wall of inner ring; 15. Arc-shaped transition; 16. Outer wall of inner ring; 17. Annular protrusion. Detailed Implementation

[0018] The present invention can be explained in more detail through the following embodiments. The present invention is not limited to the following embodiments. The purpose of disclosing the present invention is to protect all changes and improvements within the scope of the present invention.

[0019] Combined with appendix Figs. 1-4 The self-lubricating deep groove ball bearing includes an outer ring, spherical rollers 4, and an inner ring 5. The outer ring includes an outer ring 2 and an inner ring 3. An annular semi-groove A7 is provided at one end of the inner edge of the outer ring 2. An arc-shaped annular groove 8 is provided on the side wall of the annular semi-groove A7 near the inner wall 9 of the outer ring. An annular semi-groove B13 is provided at one end of the inner edge of the inner ring 3. A semi-circular section is provided at the bottom of the annular semi-groove B13, with one side of the opening near the inner wall 14 of the inner ring and the other side located on the side wall of the inner ring 3. A semi-circular groove 12 is filled with spherical rollers 4. An inner ring 3 is fitted into an annular semi-groove A7. The outer edge of the inner ring 3 is in close contact with the bottom of the annular semi-groove A7. A blind screw hole 11 is provided on the outer edge of the inner ring 3. A through hole 6 is provided on the outer edge of the outer ring 2 at a position corresponding to the blind screw hole 11, penetrating the annular semi-groove A7. A screw 1 passes through the through hole 6 and is screwed into the blind screw hole 11. An enlarged diameter 10 is provided at the outer opening of the through hole 6. The screw head is located within the expanded diameter 10. The inner ring 3 and the outer ring 2 are combined to form the outer ring. The arc-shaped annular groove 8 and the semi-circular cross-section annular groove 12 form a deep groove to clamp the multiple spherical rollers 4. The diameter of the inner wall 9 of the outer ring 2 is larger than the diameter of the inner wall 14 of the inner ring 3. An annular protrusion 17 is sleeved at one end of the outer wall 16 of the inner ring 5. An arc-shaped transition 15 is provided at the joint between the annular protrusion 17 and the outer wall 16 of the inner ring. 5 is fitted inside the outer ring, the arc transition 15 and multiple spherical rollers 4 are in contact, the annular protrusion 17 and the inner wall 9 of the outer ring are in clearance fit, the other end of the outer wall 16 of the inner ring and the inner wall 14 of the inner ring are in clearance fit, the arc of the arc groove 8, the semi-circular cross-section annular groove 12 and the arc transition 15 are all the same as the arc of the spherical rollers 4. After the spherical rollers 4 are fully filled in the semi-circular cross-section annular groove 12, the inner edge of the multiple spherical rollers 4 combined into an annular structure is flush with the inner wall 14 of the inner ring.

[0020] The self-lubricating deep groove ball bearing of this invention involves filling a semi-circular cross-section annular groove 12 with spherical rollers 4 coated with bearing oil. An inner ring 3 is fitted into an annular semi-groove A7. The arc-shaped annular groove 8 and the semi-circular cross-section annular groove 12 form a deep groove clamping effect on the multiple spherical rollers 4. A screw 1 is passed through a through hole 6 and screwed into a blind screw hole 11 to fix the inner ring 3 and outer ring 2 together, forming an outer ring. The inner ring 5 is fitted into the outer ring, allowing the arc-shaped transition 15 to contact the multiple spherical rollers 4. Because the outer edge of the inner ring 3 is tightly fitted to the bottom of the annular semi-groove A7, the deep groove raceway within the outer ring effectively prevents the loss of bearing oil coated on the spherical rollers 4 under centrifugal force during operation, achieving the purpose of easy lubrication and minimal oil leakage after the spherical rollers 4 are fully filled.

[0021] The parts of this utility model not described in detail are existing technologies.

Claims

1. A self-lubricating deep groove ball bearing, characterized in that: The outer ring includes an outer ring, spherical rollers (4), and an inner ring (5). The outer ring includes an outer ring (2) and an inner ring (3). An annular semi-groove A (7) is provided at one end of the inner edge of the outer ring (2). An arc-shaped annular groove (8) is provided on the side wall of the annular semi-groove A (7) near the inner wall (9) of the outer ring. An annular semi-groove B (13) is provided at one end of the inner edge of the inner ring. A semi-circular cross-section annular groove (12) with one side of the opening near the inner wall (14) of the inner ring and the other side of the opening located on the side wall of the inner ring (3) is provided at the bottom of the annular semi-groove B (13). Spherical rollers (4) are fully filled in the semi-circular cross-section annular groove (12). The inner ring (3) is fitted into the annular semi-groove A (7). After the inner ring (3) and the outer ring (2) are combined... An outer ring is formed, and an arc-shaped annular groove (8) and a semi-circular cross-section annular groove (12) form a deep groove to hold multiple spherical rollers (4). The diameter of the inner wall (9) of the outer ring (2) is larger than the diameter of the inner wall (14) of the inner ring (3). An annular protrusion (17) is sleeved on one end of the outer wall (16) of the inner ring (5). An arc-shaped transition (15) is provided at the junction of the annular protrusion (17) and the outer wall (16) of the inner ring. The inner ring (5) is sleeved inside the outer ring. The arc-shaped transition (15) contacts multiple spherical rollers (4). The annular protrusion (17) and the inner wall (9) of the outer ring are in clearance fit. The other end of the outer wall (16) of the inner ring is in clearance fit with the inner wall (14) of the inner ring.

2. The self-lubricating deep groove ball bearing according to claim 1, characterized in that: The curvature of the arc-shaped annular groove (8), the semi-circular cross-section annular groove (12), and the arc-shaped transition (15) are all the same as the curvature of the spherical roller (4).

3. The self-lubricating deep groove ball bearing according to claim 1, characterized in that: The outer edge of the inner ring (3) and the bottom of the annular half-groove A (7) fit tightly together.

4. The self-lubricating deep groove ball bearing according to claim 1, characterized in that: A blind screw hole (11) is provided on the outer edge of the inner ring (3). A through hole (6) is provided on the outer edge of the outer ring (2) at the position corresponding to the blind screw hole (11) to pass through the annular half groove A (7). The screw (1) passes through the through hole (6) and is screwed into the blind screw hole (11).

5. The self-lubricating deep groove ball bearing according to claim 4, characterized in that: An enlarged diameter (10) is provided at the outer opening of the perforation (6), and the screw head of the screw (1) is located inside the enlarged diameter (10).

6. The self-lubricating deep groove ball bearing according to claim 1, characterized in that: spherical... After the rollers (4) are fully installed in the semi-circular cross-section annular groove (12), the inner edge of the multiple spherical rollers (4) combined into an annular structure is flush with the inner wall (14) of the inner ring.

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