A detachable ball cage

Abstract

The utility model discloses a detachable ball cage retainer, including the outer ring, the inside installation of outer ring has the inner race, the outer ring surface between the inner race and the inner side of outer ring installs the ball cage retainer for the isolation ball bearing, the inner race is spliced type structure and can be disassembled, the utility model discloses a bolt on the inner race can be divided into two, at this moment can the ball cage retainer on the inner race is disassembled, and the structure design simple can easily disassemble the retainer, completely clean the inside of bearing, remove dirt and impurity, can directly lubricate the rolling element, ensure lubrication even, prolong the service life of bearing, if the rolling element is damaged or worn, can replace the rolling element alone, and do not need to replace the whole bearing, reduced maintenance cost, can easily check the wear condition of rolling element and raceway, and discover and repair the problem in time.

Description

Technical Field

[0001] This utility model relates to the field of ball cage cage technology, specifically a detachable ball cage. Background Technology

[0002] The ball cage is a key component inside a ball cage constant velocity joint (CV joint) used to isolate and guide the rolling elements (such as steel balls) and hold them within the raceways. It is typically made of high-strength plastic, brass, or other metals. The ball cage evenly separates the steel balls, preventing them from colliding and abrading each other. The cage guides the steel balls as they roll between the inner and outer raceways, ensuring smooth movement. The cage keeps the steel balls in the correct position, ensuring the constant velocity transmission performance of the joint. When transmitting torque and bearing loads, the cage provides support, ensuring the stable operation of the joint. Ball cages are widely used in automotive transmission systems, especially in ball cage CVTs, which are used to transmit engine power from the transmission to the wheels, driving the vehicle.

[0003] Currently, ball cages are usually fixed structures, which may restrict the cleaning of the bearing interior, making it difficult to thoroughly remove dirt and impurities and directly lubricate the rolling elements. This may result in uneven lubrication and affect the bearing's service life. Utility Model Content

[0004] 1. Technical problem to be solved by the utility model

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a detachable ball cage, which aims to solve the problem that the ball cage cage in the existing technology is usually a fixed structure, which may restrict the cleaning of the bearing interior, making it difficult to thoroughly remove dirt and impurities, and making it impossible to directly lubricate the rolling elements, which may lead to uneven lubrication and affect the service life of the bearing.

[0006] 2. Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A detachable ball cage includes an outer ring, an inner ring installed inside the outer ring, and a ball cage retainer for isolating balls installed between the outer ring surface of the inner ring and the inner side surface of the outer ring. The inner ring is a spliced ​​structure that can be disassembled.

[0009] As a preferred embodiment of this utility model, a concave annular groove is formed on the outer ring surface of the inner ring, and the ball cage retainer is fixedly sleeved on the annular groove of the inner ring. Each ball cage on the ball cage retainer is equipped with a ball, and the ball is pressed and fitted against the inner side surface of the outer ring.

[0010] As a preferred embodiment of this utility model, the top of the inner ring is a splicing block one, the bottom of the inner ring is a splicing block two, and the inner ring is divided into two parts by the inner side bisector of the annular groove.

[0011] As a preferred embodiment of this utility model, six stepped grooves are evenly spaced at the top of the splicing block one and the bottom of the splicing block two. Six threaded holes corresponding to the stepped grooves are evenly spaced at the top of the splicing block two. The top edge of the threaded hole coincides with the bottom edge of the stepped groove. The splicing block one is tightened and fixed by bolts inserted into the stepped grooves and the threaded holes on the splicing block two.

[0012] As a preferred embodiment of this utility model, sealing rings are installed on the top and bottom inner sides of the outer ring, the bottom inner edge of the sealing ring coincides with the inner edge of the inner ring, and the outer edge of the sealing ring coincides with the inner edge of the outer ring.

[0013] As a preferred embodiment of this utility model, six positioning posts are installed at equal intervals on the mating surface of the sealing ring and the inner ring. The size of the positioning posts matches the inner size of the step groove. After applying glue to the mating surface of the sealing ring, the positioning posts are inserted into the inner side of the step groove and then glued and fixed to the top of the splicing block one and the bottom of the splicing block two.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention allows the inner ring to be split in two by removing the bolts on the inner ring. The ball cage on the inner ring can then be disassembled. The simple design allows for easy cage removal, thorough cleaning of the bearing interior, removal of dirt and impurities, and direct lubrication of the rolling elements, ensuring uniform lubrication and extending the bearing's service life. If the rolling elements are damaged or worn, they can be replaced individually instead of the entire bearing, reducing maintenance costs. The invention also allows for easy inspection of the wear condition of the rolling elements and raceways, enabling timely detection and repair of problems. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a detachable ball cage according to the present invention;

[0018] Figure 2 This is a schematic diagram of the inner ring and cage structure of a detachable ball cage according to the present invention.

[0019] Figure 3 This is a schematic diagram of the unfolded structure of the ball cage retainer of a detachable ball cage according to this utility model.

[0020] In the diagram: 1. Outer ring; 2. Inner ring; 21. Splice block one; 22. Step groove; 23. Splice block two; 24. Threaded hole; 3. Ball cage retainer; 4. Sealing ring; 41. Positioning post. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Example:

[0023] Please see Figure 1-3 This embodiment provides a detachable ball cage, including an outer ring 1, an inner ring 2 installed inside the outer ring 1, and a ball cage cage 3 for isolating the balls installed between the outer ring surface of the inner ring 2 and the inner side surface of the outer ring 1. The inner ring 2 has a spliced ​​structure that can be disassembled. By removing the bolts on the inner ring 2, the inner ring 2 can be split into two, and the ball cage cage 3 on the inner ring 2 can be removed. The structural design is simple and the cage can be easily removed, thoroughly cleaning the inside of the bearing, removing dirt and impurities, and directly lubricating the rolling elements to ensure uniform lubrication and extend the service life of the bearing. If the rolling elements are damaged or worn, the rolling elements can be replaced individually without replacing the entire bearing, reducing maintenance costs. The wear condition of the rolling elements and raceways can be easily checked, and problems can be detected and repaired in time.

[0024] In this embodiment, as Figure 3 As shown, six stepped grooves 22 are evenly spaced at the top of splicing block 1 21 and the bottom of splicing block 23. Six threaded holes 24 corresponding to the stepped grooves 22 are evenly spaced at the top of splicing block 23. The top edge of the threaded hole 24 coincides with the bottom edge of the stepped groove 22. The splicing block 1 21 is tightened and fixed by bolts inserted into the stepped grooves 22 and the threaded holes 24 on the splicing block 23. The inner ring 2 is spliced ​​from splicing block 1 21 and splicing block 23 and fixed by bolts. The inner ring 2 can be disassembled by unscrewing the bolts, so that the ball cage retainer 3 can be removed from the inner ring 2.

[0025] In this embodiment, as Figure 1 As shown, sealing rings 4 are installed on the top and bottom inner sides of the outer ring 1. The bottom inner edge of the sealing ring 4 coincides with the inner edge of the inner ring 2, and the outer edge of the sealing ring 4 coincides with the inner edge of the outer ring 1. The sealing ring 4 can block the gap between the outer ring 1 and the inner ring 2 to prevent impurities from entering the gap and affecting the normal rotation of the bearing.

[0026] In this embodiment, as Figure 1 and Figure 3 As shown, six positioning posts 41 are installed at equal intervals on the mating surface of the sealing ring 4 and the inner ring 2. The size of the positioning posts 41 matches the inner size of the stepped groove 22. After applying glue to the mating surface of the sealing ring 4, the positioning posts 41 are inserted into the inner side of the stepped groove 22 and then glued and fixed to the top of the first splice block 21 and the bottom of the second splice block 23. The sealing ring 4 is installed with stable structure through the positioning posts 41 and is not easy to deform. At the same time, the glue makes it easy to disassemble.

[0027] Working principle: When using this detachable ball cage cage, since ring 2 is composed of splicing blocks 21 and 23 and fixed with bolts, the ball cage cage 3 can be removed from the inner ring 2 by unscrewing the bolts and disassembling it. The simple structural design allows for easy removal of the cage, thorough cleaning of the bearing interior, removal of dirt and impurities, and direct lubrication of the rolling elements, ensuring uniform lubrication and extending the bearing's service life. If the rolling elements are damaged or worn, they can be replaced individually without replacing the entire bearing, reducing maintenance costs. The wear condition of the rolling elements and raceways can be easily checked, allowing for timely detection and repair of problems.

[0028] All technical features in this embodiment can be freely combined according to actual needs.

[0029] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A detachable ball cage, comprising an outer ring (1), characterized in that: An inner ring (2) is installed inside the outer ring (1). A ball cage retainer (3) for isolating the balls is installed between the outer ring surface of the inner ring (2) and the inner side surface of the outer ring (1). The inner ring (2) is a spliced ​​structure that can be disassembled. The top of the inner ring (2) is a splicing block one (21), and the bottom of the inner ring (2) is a splicing block two (23). The inner ring (2) is divided into two parts by the inner side bisector of the annular groove. The top of (21) and the bottom of the second splicing block (23) are evenly spaced with six stepped grooves (22). The top of the second splicing block (23) is evenly spaced with six threaded holes (24) corresponding to the stepped grooves (22). The top edge of the threaded hole (24) coincides with the bottom edge of the stepped groove (22). The first splicing block (21) is tightened and fixed by bolts inserted into the stepped groove (22) and the threaded hole (24) on the second splicing block (23).

2. The detachable ball cage according to claim 1, characterized in that: The inner ring (2) has a concave annular groove on its outer ring surface. The ball cage retainer (3) is fixedly installed on the annular groove of the inner ring (2). Each ball cage on the ball cage retainer (3) is equipped with a ball, and the ball is pressed and fitted against the inner side of the outer ring (1).

3. A detachable ball cage according to claim 1, characterized in that: Sealing rings (4) are installed on the top and bottom inner sides of the outer ring (1). The bottom inner edge of the sealing ring (4) coincides with the inner edge of the inner ring (2), and the outer edge of the sealing ring (4) coincides with the inner edge of the outer ring (1).

4. A detachable ball cage according to claim 3, characterized in that: Six positioning posts (41) are installed at equal intervals on the mating surface of the sealing ring (4) and the inner ring (2). The size of the positioning posts (41) matches the inner size of the step groove (22). After applying glue to the mating surface of the sealing ring (4), the positioning posts (41) are inserted into the inner side of the step groove (22) and then glued and fixed to the top of the splicing block one (21) and the bottom of the splicing block two (23).

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