Sealed double-row angular contact ball bearing

Abstract

The utility model discloses a sealed type double-row angular contact ball bearing which comprises a bearing outer ferrule, a bearing inner ferrule is arranged in the bearing outer ferrule, two rows of rolling balls are connected between the bearing outer ferrule and the bearing inner ferrule in a rolling mode, sealing ring grooves are formed in the two side walls of the bearing outer ferrule, and sealing rings are arranged in the sealing ring grooves. A sealing ring is arranged in the sealing ring groove, the sealing ring is arranged on the bearing inner ferrule in a sleeving mode, detachable locking rings are arranged on the two side walls of the bearing outer ferrule correspondingly, a pair of symmetrically-arranged inserting bases are fixedly welded to the two side walls of the bearing outer ferrule correspondingly, and inserting grooves matched with the inserting bases are formed in the locking rings. And a limiting assembly is arranged on the bayonet socket. The locking rings are arranged on the two side walls of the bearing outer ferrule to block the sealing rings, the sealing performance of the bearing is guaranteed, and when the bearing needs to be lubricated, the locking rings can be detached, blocking to the sealing rings is relieved, and balls of the bearing can be conveniently lubricated by taking down the sealing rings.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a sealed double-row angular contact ball bearing. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. Generally, it is a single-row angular contact ball bearing. The design of double-row angular contact ball bearings is basically the same as that of single-row angular contact ball bearings. The shaft-shaped raceway and the raceway have excellent fit with the steel ball. In addition to bearing radial loads, double-row angular contact ball bearings can also bear axial loads acting in two directions.

[0003] In the prior art, an authorized patent with announcement number CN217301256U discloses a sealed double-row angular contact ball bearing, the key points of its technical solution include an inner ring, an outer ring and a sealing structure, a double-row raceway is formed between the two outer ring grooves and the two inner ring grooves, and the structural strength of the two sealing rings is further improved by two side sealing rings and two L-shaped steel skeletons to prevent the two sealing rings from being deformed under force, and solve the problem of angular deviation of the two sealing rings along the radial direction of the inner and outer rings of the bearing when the bearing is subjected to a certain overturning moment, effectively avoiding the generation of sealing gaps in the bearing and the leakage of lubricating oil inside the bearing, with good sealing effect, which is conducive to the use of the bearing.

[0004] However, the above technical solution still has the following shortcomings when it is actually used: the sealing ring of the above technical solution extends into the limiting ring groove, which makes it inconvenient when the inside of the bearing needs to be lubricated. In this regard, we propose a sealed double-row angular contact ball bearing to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a sealed double-row angular contact ball bearing to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a sealed double-row angular contact ball bearing, comprising:

[0007] The outer ring of the bearing is provided with an inner ring of the bearing, and two rows of balls are rollingly connected between the outer ring of the bearing and the inner ring of the bearing. Sealing ring grooves are provided on both side walls of the outer ring of the bearing, and sealing rings are provided in the sealing ring grooves. The sealing rings are sleeved on the inner ring of the bearing. Removable locking rings are provided on both side walls of the outer ring of the bearing, and a pair of symmetrically arranged plug-in seats are fixedly welded on both side walls of the outer ring of the bearing, and plug-in grooves matching the plug-in seats are provided on the locking rings. A limiting assembly is provided on the plug-in seat, and two symmetrically arranged sliding grooves are provided on the plug-in seat. The limiting assembly includes two sliding rods, and the two sliding rods are fixedly welded in the two sliding grooves respectively. A pull rod is slidably connected to the sliding rod, and a limiting column is fixedly welded on the pull rod.

[0008] Preferably, an elastic spring is sleeved on the slide rod, and two ends of the elastic spring are fixedly connected to the inner wall of the slide groove and the pull rod respectively.

[0009] Preferably, the limiting post passes through the plug socket and is slidably connected to the plug socket, and limiting grooves adapted to the limiting post are formed on both side walls of the plug slot.

[0010] Preferably, four annular equidistantly distributed positioning grooves are provided on both side walls of the outer ring of the bearing, and positioning columns matching the positioning grooves are fixedly welded on the inner wall of the locking ring.

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

[0012] The utility model provides locking rings on the two side walls of the bearing outer ring to seal the sealing ring, thereby ensuring the sealing of the bearing. When the bearing needs to be lubricated, the locking ring can be removed to release the obstruction to the sealing ring. The sealing ring can be removed to facilitate lubrication of the ball of the bearing. The locking ring is installed on the side wall of the bearing outer ring through the plug-in groove and the plug-in seat. The elastic force of the elastic spring arranged on the plug-in seat acts on the pull rod to make the limit column extend out of the plug-in seat and insert into the limit groove, thereby limiting and fixing the locking ring, making the disassembly and assembly of the locking ring more convenient, and further improving the work efficiency during bearing lubrication. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of a sealed double-row angular contact ball bearing proposed by the utility model;

[0014] Figure 2 This is a front view of the overall cross-section structure of a sealed double-row angular contact ball bearing proposed by the utility model;

[0015] Figure 3 A three-dimensional structural diagram of the outer bearing ring of a sealed double-row angular contact ball bearing proposed by the utility model;

[0016] Figure 4 A three-dimensional structural diagram of a locking ring in a sealed double-row angular contact ball bearing proposed by the utility model;

[0017] Figure 5 The utility model provides a cross-sectional top view of a plug-in socket in a sealed double-row angular contact ball bearing.

[0018] In the figure: 1. outer bearing ring; 2. inner bearing ring; 3. ball; 4. sealing ring groove; 5. sealing ring; 6. locking ring; 7. socket; 8. socket groove; 9. slide groove; 10. slide rod; 11. pull rod; 12. limit column; 13. elastic spring; 14. limit groove; 15. positioning groove; 16. positioning column. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-5 The utility model provides a technical solution: a sealed double-row angular contact ball bearing, comprising:

[0021] A bearing outer ring 1, wherein a bearing inner ring 2 is arranged inside the bearing outer ring 1, two rows of rolling balls 3 are rollingly connected between the bearing outer ring 1 and the bearing inner ring 2, sealing ring grooves 4 are provided on both side walls of the bearing outer ring 1, sealing rings 5 ​​are provided in the sealing ring grooves 4, and the sealing rings 5 ​​are sleeved on the bearing inner ring 2, and removable locking rings 6 are provided on both side walls of the bearing outer ring 1, and a pair of symmetrically arranged plug seats 7 are fixedly welded on both side walls of the bearing outer ring 1, and plug slots 8 matched with the plug seats 7 are provided on the locking rings 6, and a limiting component is provided on the plug seat 7, and two symmetrically arranged slide grooves 9 are provided on the plug seat 7, and the limiting component includes two sliding rods 10, and the two sliding rods 10 are respectively fixedly welded in the two slide grooves 9, and the sliding rod 10 is slidably connected with a pull rod 11, and a limiting column 12 is fixedly welded on the pull rod 11.

[0022] The slide bar 10 is sleeved with an elastic spring 13 , and two ends of the elastic spring 13 are fixedly connected to the inner wall of the slide slot 9 and the pull rod 11 respectively.

[0023] The limit column 12 passes through the socket 7 and is slidably connected to the socket 7. The two side walls of the socket 8 are provided with limit grooves 14 that are compatible with the limit column 12. The elastic force of the elastic spring 13 acts on the pull rod 11 to make the limit column 12 extend out of the socket 7 and insert into the limit groove 14, thereby limiting and fixing the locking ring 6 on the bearing outer ring 1.

[0024] Four annular equidistantly distributed positioning grooves 15 are provided on both side walls of the bearing outer ring 1, and positioning columns 16 adapted to the positioning grooves 15 are fixedly welded on the inner wall of the locking ring 6. The cooperation between the positioning grooves 15 and the positioning columns 16 can improve the limiting effect after the locking ring 6 is installed to prevent the locking ring 6 from shaking.

[0025] Working principle: The utility model seals the sealing ring 5 by arranging locking rings 6 on both side walls of the bearing outer ring 1, thereby ensuring the sealing of the bearing. When the bearing needs to be lubricated, the locking ring 6 can be removed to release the obstruction to the sealing ring 5. The sealing ring 5 can be removed to facilitate lubrication of the bearing ball 3. The locking ring 6 is installed on the side wall of the bearing outer ring 1 through the plug-in groove 8 and the plug-in seat 7. The elastic force of the elastic spring 13 arranged on the plug-in seat 7 acts on the pull rod 11, so that the limit column 12 can extend out of the plug-in seat 7 and be inserted into the limit groove 14, thereby limiting and fixing the locking ring 6, making the disassembly and assembly of the locking ring 6 more convenient, and further improving the work efficiency during bearing lubrication.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] 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 sealed double row angular contact ball bearing, characterized in that: include: An outer bearing ring (1), wherein an inner bearing ring (2) is disposed inside the outer bearing ring (1), two rows of rolling balls (3) are rollingly connected between the outer bearing ring (1) and the inner bearing ring (2), sealing ring grooves (4) are provided on both side walls of the outer bearing ring (1), a sealing ring (5) is provided in the sealing ring groove (4), and the sealing ring (5) is sleeved on the inner bearing ring (2), and detachable locking rings (6) are provided on both side walls of the outer bearing ring (1), and the outer bearing ring (1) is provided with a plurality of locking rings (6) on both side walls. A pair of symmetrically arranged sockets (7) are fixedly welded thereon, a socket groove (8) adapted to the socket (7) is provided on the locking ring (6), a limit assembly is provided on the socket (7), two symmetrically arranged slide grooves (9) are provided on the socket (7), the limit assembly includes two slide rods (10), the two slide rods (10) are fixedly welded in the two slide grooves (9) respectively, a pull rod (11) is slidably connected to the slide rod (10), and a limit column (12) is fixedly welded on the pull rod (11).

2. A sealed double row angular contact ball bearing according to claim 1, characterized in that: An elastic spring (13) is sleeved on the slide bar (10), and two ends of the elastic spring (13) are fixedly connected to the inner wall of the slide groove (9) and the pull rod (11) respectively.

3. A sealed double row angular contact ball bearing according to claim 1, characterized in that: The limiting column (12) passes through the plug socket (7) and is slidably connected to the plug socket (7), and limiting grooves (14) adapted to the limiting column (12) are provided on both side walls of the plug slot (8).

4. A sealed double row angular contact ball bearing according to claim 1, characterized in that: Four annular equidistantly distributed positioning grooves (15) are provided on both side walls of the outer ring of the bearing (1), and positioning columns (16) matching the positioning grooves (15) are fixedly welded on the inner wall of the locking ring (6).

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