Double-row deep groove ball bearing with bearing oil not prone to loss

Abstract

A double-row deep groove ball bearing capable of preventing bearing oil from losing easily relates to a double-row deep groove ball bearing, and is characterized in that two check rings (3) are respectively and oppositely attached to two ends of an outer ring (1), two arc-shaped ring grooves (13) are respectively contacted with two groups of spherical rollers (4), and the arc-shaped ring grooves (13) and a semicircular section ring groove (9) form deep groove clamping on the plurality of spherical rollers (4); the ends, not connected with the annular protrusions (16) in a sleeved mode, of the two half inner rings (5) extend into the two ends of the inner wall (11) of the outer ring and then make contact with the half inner rings (5), the outer edges of the two annular protrusions (16) are in clearance fit with the inner walls (14) of the two check rings, and the two arc-shaped transitions (19) make contact with the two sets of spherical rollers (4) respectively. According to the utility model, the plurality of spherical rollers are fully arranged in the two semicircular section ring grooves, the arc-shaped ring grooves and the semicircular section ring grooves 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 purpose that bearing oil is easy to lubricate and is not easy to lose after the spherical rollers are fully arranged is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a double row deep groove ball bearing, especially a double row deep groove ball bearing with bearing oil not easy to lose. BACKGROUND

[0002] Deep groove ball bearings are suitable for high speed or even very high speed operation, and are very durable, and do not need to be maintained frequently. The friction coefficient of the bearing is small, the limit speed is high, the size range and form are various, and the bearing is applied to the industries of precision instruments, low noise motors, automobiles, motorcycles 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 always had a process flow of needing to be punched or notched, and the deep groove ball bearing has defects of not being tightly closed and being easy to leak oil after being punched or notched, which affects normal use. The deep groove ball bearing needs sufficient lubricating oil to cooperate when rotating at high speed to ensure smoothness and the service life of the bearing body, and the traditional double row deep groove ball bearing is easy to throw out bearing oil when running, and oil loss is easy to occur. SUMMARY

[0003] In order to overcome the defects in the background art, the utility model discloses a double row deep groove ball bearing with bearing oil not easy to lose, a plurality of spherical rollers are fully assembled in two half circular section ring grooves, the arcuate ring groove and the half circular section ring groove form deep groove raceways to clamp the plurality of spherical rollers, and the arcuate transition forms an angular contact inner raceway, so that the bearing oil is easy to lubricate and not easy to lose 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 double row deep groove ball bearing with bearing oil not easy to lose, comprising an outer ring, a retainer, spherical rollers and a half inner ring, wherein a protruding ring is arranged at the outer edge of each end of the outer ring, a ring-shaped half groove is arranged at the inner wall of each end of the outer ring, a half circular section ring groove is arranged at the bottom of each ring-shaped half groove, one side of the mouth of the half circular section ring groove is close to the inner wall of the outer ring, and the other side of the mouth is located on the side wall of the outer ring, the spherical rollers are fully assembled in the two half circular section ring grooves, an arcuate ring groove is arranged at the position close to the inner wall of the bottom surface of the retainer, there are two retainers, the two retainers are respectively attached to the two ends of the outer ring, the two arcuate ring grooves are respectively in contact with the two groups of spherical rollers, the arcuate ring groove and the half circular section ring groove form deep groove clamping for the plurality of spherical rollers, a ring-shaped protrusion is sleeved at one end of the outer wall of the half inner ring, an arcuate transition is arranged at the joint of the ring-shaped protrusion and the outer wall of the half inner ring, there are two half inner rings, one end of each of the two half inner rings, which is not sleeved with the ring-shaped protrusion, is respectively inserted into the other end along the two ends of the inner wall of the outer ring and is in contact, the outer edge of the two ring-shaped protrusions is in clearance fit with the inner wall of the two retainers, and the two arcuate transitions are respectively in contact with the two groups of spherical rollers.

[0006] The bearing oil non-easy to lose double row deep groove ball bearing, the arc transition is the same as the arc of the spherical roller.

[0007] The bearing oil non-easy to lose double row deep groove ball bearing, the two blocking rings are provided with through holes near the outer edge, and the outer ring is provided with blind screw holes corresponding to the through holes.

[0008] The bearing oil non-easy to lose double row deep groove ball bearing, the two blocking rings are provided with through holes near the outer edge, and the outer ring is provided with blind screw holes corresponding to the through holes.

[0009] The bearing oil non-easy to lose double row deep groove ball bearing, the spherical rollers are fully filled in the semicircular cross-section ring grooves, and the inner edges of the multiple spherical rollers combined in a ring structure are flush with the inner walls of the outer ring.

[0010] The bearing oil non-easy to lose double row deep groove ball bearing, the two half inner rings are gap-fitted with the inner walls of the outer ring at the ends of the annular protrusions.

[0011] The bearing oil non-easy to lose double row deep groove ball bearing, the two half inner rings are gap-fitted with the inner walls of the outer ring at the ends of the annular protrusions.

[0012] Due to the adoption of the above technical scheme, the bearing oil non-easy to lose double row deep groove ball bearing has the following beneficial effects:

[0013] The bearing oil non-easy to lose double row deep groove ball bearing has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 The utility model discloses a structure schematic diagram of bearing oil non-easy to lose double row deep groove ball bearing;

[0015] Fig. 2 The utility model discloses a structure schematic diagram of bearing oil non-easy to lose double row deep groove ball bearing;

[0016] Fig. 3 The utility model discloses a structure schematic diagram of bearing oil non-easy to lose double row deep groove ball bearing;

[0017] Fig. 4 The utility model discloses a structure schematic diagram of bearing oil non-easy to lose double row deep groove ball bearing;

[0018] In the figure: 1, outer ring; 2, screw; 3, retaining ring; 4, spherical roller; 5, half inner ring; 6, connecting ring; 7, protruding ring; 8, blind hole; 9, half circular cross-section ring groove; 10, annular half groove; 11, outer ring inner wall; 12, through hole; 13, arc-shaped ring groove; 14, retaining ring inner wall; 15, diameter expansion; 16, annular protrusion; 17, half inner ring outer wall; 18, connecting ring groove; 19, arc-shaped transition. DETAILED DESCRIPTION

[0019] The utility model can be explained in more detail through the following examples, the utility model is not limited to the following examples, the purpose of disclosing the utility model aims at protecting all changes and improvements within the scope of the utility model;

[0020] Combining the drawings Figs. 1-4 The double-row deep-groove ball bearing with bearing oil not easy to lose comprises an outer ring 1, a retaining ring 3, spherical rollers 4 and a half inner ring 5, protruding rings 7 are arranged at the outer edge parts of the two ends of the outer ring 1, annular half grooves 10 are arranged at the two ends of the outer ring inner wall 11, half circular cross-section ring grooves 9 are arranged at the groove bottoms of the two annular half grooves 10, one side of the mouth part of each half circular cross-section ring groove 9 is close to the outer ring inner wall 11, and the other side of the mouth part is located at the side wall of the outer ring 1, the spherical rollers 4 are fully arranged in the two half circular cross-section ring grooves 9, arc-shaped ring grooves 13 are arranged at the positions close to the retaining ring inner wall 14 of one bottom surface of the retaining ring 3, there are two retaining rings 3, the two retaining rings 3 are respectively attached to the two ends of the outer ring 1, through holes 12 are arranged at the positions close to the outer edges of the two retaining rings 3, blind holes 8 are arranged at the positions corresponding to the through holes 12 on the two bottom surfaces of the outer ring 1, the screw 2 is screwed with the blind hole 8 after passing through the through hole 12, the diameter expansion 15 is arranged at the outer mouth part of the through hole 12, the screw head of the screw 2 is located in the diameter expansion 15, the two arc-shaped ring grooves 13 are respectively in contact with the two groups of spherical rollers 4, the arc-shaped ring grooves 13 and the half circular cross-section ring grooves 9 form deep-groove clamping for the plurality of spherical rollers 4, the annular protrusion 16 is sleeved at one end of the half inner ring outer wall 17 of the half inner ring 5, the arc-shaped transition 19 is arranged at the joint of the annular protrusion 16 and the half inner ring outer wall 17, there are two half inner rings 5, the ends of the two half inner rings 5, which are not sleeved with the annular protrusion 16, respectively extend into the other end along the two ends of the outer ring inner wall 11 and are in contact with each other, the outer edges of the two annular protrusions 16 are in clearance fit with the two retaining ring inner walls 14, the two arc-shaped transitions 19 are respectively in contact with the two groups of spherical rollers 4, the ends of the two half inner rings 5, which are not sleeved with the annular protrusion 16, are in clearance fit with the outer ring inner wall 11, the radii of the half circular cross-section ring grooves 9, the arc-shaped ring grooves 13 and the arc-shaped transitions 19 are the same as the radius of the spherical rollers 4, after the spherical rollers 4 are fully arranged in the half circular cross-section ring grooves 9, the inner edges of the ring structures formed by the plurality of spherical rollers 4 are flush with the outer ring inner wall 11, the connecting ring grooves 18 are respectively arranged on the end faces of the ends of the two half inner rings 5, which are not sleeved with the annular protrusion 16, the two ends of the connecting ring 6 are respectively embedded into the two connecting ring grooves 18 to fix the two half inner rings 5.

[0021] The double-row deep-groove ball bearing with bearing oil not easy to lose is provided by the utility model, the spherical roller 4 in the semicircular cross-section ring groove 9 is filled with bearing oil, the two blocking rings 3 are fixed on the two ends of the outer ring 1 by the screw 2, the arc-shaped ring groove 13 and the semicircular cross-section ring groove 9 form deep-groove clamping for the plurality of spherical rollers 4, the two inner rings 5 are oppositely sleeved in the outer ring 1 and are fixed, the arc-shaped transition 19 is in contact with the plurality of spherical rollers 4, and since the two blocking rings 3 are closely attached to the two ends of the outer ring 1, the bearing oil applied on the two groups of spherical rollers 4 is effectively prevented from being lost under the action of centrifugal force in the running process of the utility model, and the purpose that bearing oil is easy to lubricate and not easy to lose after the spherical roller 4 is filled is achieved.

[0022] The part not described in the utility model is prior art.

Claims

1. A double-row deep groove ball bearing with less loss of bearing oil, characterized in that: The application relates to a ball-shaped roller bearing, which comprises an outer ring (1), a retaining ring (3), ball-shaped rollers (4) and half inner rings (5), wherein convex rings (7) are arranged at the outer edge portions of the two ends of the outer ring (1), annular half grooves (10) are arranged at the two ends of the inner wall (11) of the outer ring (1), half-circular cross-section ring grooves (9) are arranged at the groove bottoms of the two annular half grooves (10) and are located close to the inner wall (11) of the outer ring (1) on one side of the groove mouth and are located on the side wall of the outer ring (1) on the other side of the groove mouth, the ball-shaped rollers (4) are filled in the two half-circular cross-section ring grooves (9), arc-shaped ring grooves (13) are arranged at the positions close to the inner wall (14) of the bottom surface of the retaining ring (3), the retaining ring (3) is provided with two, the two retaining rings (3) are respectively attached to the two ends of the outer ring (1), the two arc-shaped ring grooves (13) are respectively in contact with the two groups of ball-shaped rollers (4), the arc-shaped ring grooves (13) and the half-circular cross-section ring grooves (9) form deep groove clamping for the plurality of ball-shaped rollers (4), the outer wall (17) of the half inner ring (5) is provided with a ring-shaped protrusion (16) at one end, an arc-shaped transition (19) is arranged at the joint of the ring-shaped protrusion (16) and the outer wall (17) of the half inner ring (5), the half inner ring (5) is provided with two, the two half inner rings (5) are respectively inserted into the two ends of the outer ring (11) at the ends not provided with the ring-shaped protrusion (16) and are in contact with each other, the outer edges of the two ring-shaped protrusions (16) are in clearance fit with the two retaining ring inner walls (14), and the two arc-shaped transitions (19) are respectively in contact with the two groups of ball-shaped rollers (4). ​ 2. The double-row deep groove ball bearing with less loss of bearing oil according to claim 1, characterized in that: The radii of the half-circular cross-section ring grooves (9), the arc-shaped ring grooves (13) and the arc-shaped transitions (19) are the same as the radius of the ball-shaped rollers (4).

3. The double-row deep groove ball bearing with less loss of bearing oil according to claim 1, wherein the inner ring is provided with a plurality of oil grooves. The positions close to the outer edges of the two retaining rings (3) are respectively provided with through holes (12), and blind screw holes (8) are arranged on the two bottom surfaces of the outer ring (1) and correspond to the positions of the through holes (12), and the screws (2) are screwed with the blind screw holes (8) after passing through the through holes (12).

4. The double-row deep groove ball bearing with less loss of bearing oil according to claim 3, characterized in that: The outer mouth portions of the through holes (12) are provided with enlargements (15), and the screw heads of the screws (2) are located in the enlargements (15).

5. The double-row deep groove ball bearing with less loss of bearing oil according to claim 1, wherein the spherical surface is formed by a plurality of spherical segments. [0099] After the rollers (4) are filled in the half-circular cross-section ring grooves (9), the plurality of ball-shaped rollers (4) are combined into an annular structure, and the inner edge of the annular structure is flush with the inner wall (11) of the outer ring.

6. The double-row deep groove ball bearing with less loss of bearing oil according to claim 1, wherein: The ends of the two half inner rings (5) not provided with the ring-shaped protrusions (16) are in clearance fit with the inner wall (11) of the outer ring.

7. The double-row deep groove ball bearing with less loss of bearing oil according to claim 1, wherein: End faces of the two half inner rings (5) not provided with the ring-shaped protrusions (16) are respectively provided with connecting ring grooves (18), and the two ends of the connecting ring (6) are respectively embedded into the two connecting ring grooves (18) to fix the two half inner rings (5).

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