Deep groove ball bearing ring assembly

Abstract

The utility model discloses deep groove ball bearing ring assembly, include: outer ring, inner ring, retainer and ball, and the retainer includes two half retainer body and the clamping block, and the half retainer body includes half ring cover portion and connecting portion, and the connecting portion is located between two adjacent half ring cover portions, and the connecting portion is equipped with the positioning through -hole corresponding with the clamping block, and the clamping block is formed with the bendable portion through the positioning through -hole, and the clamping block holds two connecting portions mutually pasting together through the bendable portion of both ends. The utility model novel structure, and the retainer adopts the split type structure, and can be two for one, and compared with the integrated retainer, and the manufacturing requirement is low, and the assembly difficulty with the ball is reduced, and compared with two half retainer body riveting, and the dismounting difficulty is small, and the efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the field of bearing ring technology, and particularly relates to deep groove ball bearing ring assemblies. Background Technology

[0002] The main function of bearing races is to provide axial support and position the bearing, and to reduce friction and wear during operation.

[0003] Existing patent document (publication number: CN222351178U) discloses "a bearing ring assembly," in which the ball is rolled and connected to the inside of the cage. The cage is a one-piece molded structure, and the ball is pressed into the cage ring using a press-fit method, which is difficult and laborious to disassemble and assemble. In contrast, the existing split-structure cage is made of two half-cages riveted together, which has problems such as difficult disassembly and assembly and low efficiency. Summary of the Invention

[0004] The purpose of this utility model is to solve the above-mentioned technical problems existing in the prior art and to provide a deep groove ball bearing ring assembly with a novel structure. The cage adopts a split structure and can be disassembled into two parts. Compared with a one-piece molded cage, the manufacturing requirements are lower and the assembly difficulty with the balls is reduced. Compared with two half cages riveted together, the disassembly and assembly are easier and more efficient.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A deep groove ball bearing ring assembly includes an outer ring, an inner ring, a cage, and balls. The cage comprises two half-cage bodies and a retaining block. Each half-cage body includes a semi-ring portion and a connecting portion. The connecting portion is located between two adjacent semi-ring portions. The connecting portion has a positioning through hole corresponding to the retaining block. The retaining block passes through the positioning through hole to form a bendable portion. The retaining block clamps the two interlocking connecting portions through the bendable portions at both ends. This bearing ring assembly has a novel structure. The cage adopts a split structure, allowing it to be disassembled into two parts. Compared to a one-piece molded cage, this design reduces manufacturing requirements and assembly difficulty with the balls. Compared to cages composed of two riveted half-cage bodies, this design reduces assembly and disassembly difficulty and increases efficiency.

[0006] Furthermore, the semi-cage body is provided with positioning protrusions and positioning grooves, with the positioning protrusions corresponding to the positioning grooves. This positioning and alignment reduces operational difficulty, allowing the positioning through holes of the two semi-cage bodies to be aligned in one step.

[0007] Furthermore, the inner wall of the outer ring is provided with grease to lubricate the inner wall of the outer ring, reduce wear, and extend service life.

[0008] Furthermore, the inner wall of the outer ring is provided with filling grooves corresponding to the grease, ensuring the amount of grease filling and a longer lubrication time.

[0009] Furthermore, a sealing ring is embedded in the annular gap between the outer and inner rings. The sealing ring seals the annular gap between the outer and inner rings, preventing external foreign objects such as dust from entering the gap. The ball bearings rotate in a clean environment, reducing wear and extending their service life.

[0010] Furthermore, a fixing groove is provided on the inner wall of the outer ring, and a protrusion corresponding to the fixing groove is provided on the outer side of the sealing ring. The protrusion is embedded into the fixing groove to limit the sealing ring. In the radial direction, the sealing ring is blocked by the outer ring and the inner ring and cannot move freely. It is easy to disassemble and assemble, and can be replaced if damaged, making it flexible and convenient.

[0011] Furthermore, the inner ring has a wear-resistant layer on its surface, which improves the wear resistance of the inner ring and thus extends its service life.

[0012] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects: 1. The cage adopts a split structure, which can be disassembled into two parts. Compared with a one-piece molded cage, the manufacturing requirements are lower and the assembly difficulty with the balls is reduced. Compared with two half cages riveted together, the disassembly and assembly are easier and more efficient.

[0013] 2. During assembly, the two semi-ring sleeves are fitted around the balls, and the positioning protrusion of one half of the cage is inserted into the positioning groove of the other half of the cage for positioning and docking. This reduces the difficulty of operation and ensures that the positioning through holes of the two half-cages are aligned in one step, resulting in high assembly efficiency. Then, the locking block is passed through the positioning through holes of the two mating connecting parts, and the bendable parts at both ends of the locking block are bent to press against the connecting parts. The locking block cannot come out of the positioning through hole, and the two half-cages cannot be separated freely, forming a complete cage. The locking block is then bent back to restore its original shape. After removing the locking block, the two half-cages can be separated. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the deep groove ball bearing ring assembly of this utility model; Figure 2 This is a schematic diagram of the cage arrangement in this utility model; Figure 3 This is a schematic diagram of the connection between the cage and the ball bearings in this utility model; Figure 4 This is a schematic diagram of the structure of the semi-cage in this utility model; Figure 5 This is a schematic diagram of the structure of the locking block and the bent locking block in this utility model; Figure 6 This is a schematic diagram of the outer ring structure in this utility model; Figure 7 This is a schematic diagram of the inner wall structure of the outer ring in this utility model; Figure 8 This is a schematic diagram of the sealing ring in this utility model.

[0015] In the diagram: 1-Outer ring; 2-Inner ring; 3-Cage; 4-Ball; 5-Half-cage body; 6-Clamping block; 7-Half-ring part; 8-Connecting part; 9-Positioning protrusion; 10-Positioning groove; 11-Positioning through hole; 12-Grease; 13-Filling groove; 14-Sealing ring; 15-Fixing groove; 16-Protrusion; 17-Bendable part. Detailed Implementation

[0016] like Figures 1 to 8 As shown, this utility model relates to a deep groove ball bearing raceway assembly, which includes: an outer raceway 1, an inner raceway 2, a cage 3, and balls 4. The balls 4 are mounted on the cage 3 and are located between the outer raceway of the inner raceway 2 and the inner raceway of the outer raceway 1. The surface of the inner raceway 2 is provided with a wear-resistant layer, which is a chrome-plated layer, to improve the wear resistance of the inner raceway and thus extend its service life.

[0017] The retainer 3 includes two half retainer bodies 5 and a locking block 6. The half retainer body 5 includes a semi-ring sleeve 7 and a connecting part 8. The connecting part 8 is located between two adjacent semi-ring sleeves 7. The half retainer body 5 is provided with a positioning protrusion 9 and a positioning groove 10 respectively. The positioning protrusion 9 corresponds to the positioning groove 10. The connecting part 8 is provided with a positioning through hole 11 corresponding to the locking block 6. The locking block 6 is made of semi-hard aluminum plate. Both ends of the locking block 6 are provided with bendable parts 17, which can be bent back and forth.

[0018] The cage 3 adopts a split structure and can be disassembled into two parts. Compared with the one-piece molded cage 3, the manufacturing requirements are lower and the assembly difficulty with the ball 4 is reduced. Compared with the two half cage bodies 5 riveted together, the disassembly and assembly are easier and more efficient.

[0019] During assembly, the two semi-ring parts 7 are fitted onto the ball 4, and the positioning protrusion 9 of one half-cage body 5 is embedded into the positioning groove 10 of the other half-cage body 5 for positioning and docking, which reduces the difficulty of operation and makes the positioning through holes 11 of the two half-cage bodies 5 aligned in one step, resulting in high assembly efficiency. Then, the locking block 6 is passed through the positioning through holes 11 of the two mutually fitting connecting parts 8, and the bendable parts 17 at both ends of the locking block 6 are bent to press against the connecting parts 8. The locking block 6 cannot come out of the positioning through holes 11, and the two half-cage bodies 5 cannot be separated freely, forming a complete cage 3. The bendable parts 17 are bent back to restore the locking block 6. The locking block 6 is removed, and the two half-cage bodies 5 can be separated.

[0020] The inner wall of the outer ring 1 is provided with grease 12 to lubricate the inner wall of the outer ring 1, reduce wear, and extend service life. The inner wall of the outer ring 1 is provided with filling grooves 13 corresponding to the grease 12, which ensures the filling amount of grease 12 and the lubrication time is longer.

[0021] A sealing ring 14 is embedded in the annular gap between the outer ring 1 and the inner ring 2. The sealing ring 14 is made of rubber and seals the annular gap between the outer ring 1 and the inner ring 2 to prevent dust and other foreign objects from entering the annular gap. The ball 4 rotates in a clean environment, which reduces wear and extends its service life.

[0022] The radial gap between the sealing ring 14 and the inner ring 2 is 0.1-0.3mm to avoid direct contact.

[0023] The inner wall of the outer ring 1 is provided with a fixing groove 15, and the outer side of the sealing ring 14 is provided with a protrusion 16 corresponding to the fixing groove 15.

[0024] The protrusion 16 is embedded into the fixing groove 15, and the outer wall of the sealing ring 14 is attached to the inner wall of the outer ring 1 to limit the sealing ring 14. In the radial direction, the sealing ring 14 is blocked by the outer ring 1 and the inner ring 2 and cannot move freely. It is easy to disassemble and assemble, and can be replaced if damaged, which is flexible and convenient.

[0025] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. Deep groove ball bearing ring assembly, including: An outer ring, an inner ring, a cage, and a ball bearing, characterized in that: the cage comprises two half-cage bodies and a locking block; each half-cage body comprises a semi-ring portion and a connecting portion; the connecting portion is disposed between two adjacent semi-ring portions; the connecting portion has a positioning through hole corresponding to the locking block; the locking block passes through the positioning through hole to form a bendable portion; the locking block clamps the two mutually fitted connecting portions through the bendable portions at both ends.

2. The deep groove ball bearing ring assembly according to claim 1, characterized in that: The semi-cage body is provided with positioning protrusions and positioning grooves, with the positioning protrusions corresponding to the positioning grooves.

3. The deep groove ball bearing ring assembly according to claim 1, characterized in that: The inner wall of the outer ring is provided with grease.

4. The deep groove ball bearing ring assembly according to claim 3, characterized in that: The inner wall of the outer ring is provided with a filling groove corresponding to the grease.

5. The deep groove ball bearing ring assembly according to claim 1, characterized in that: A sealing ring is embedded in the annular gap between the outer ring and the inner ring.

6. The deep groove ball bearing ring assembly according to claim 5, characterized in that: The inner wall of the outer ring is provided with a fixing groove, and the outer side of the sealing ring is provided with a protrusion corresponding to the fixing groove.

7. The deep groove ball bearing ring assembly according to claim 1, characterized in that: The surface of the inner ring is provided with a wear-resistant layer.

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