Ball bearing structure with long service life

Abstract

The utility model discloses a long-life ball bearing structure which comprises a bearing outer steel ring, a bearing inner steel ring is arranged on the inner side of the bearing outer steel ring, a plurality of ball bodies are movably arranged between the bearing outer steel ring and the bearing inner steel ring, and retainers are installed on the outer walls of the ball bodies. A first side protection shell is arranged on one side of the bearing outer steel ring, the inner wall of the first side protection shell makes contact with the outer wall of the bearing outer steel ring, a second side protection shell is arranged on the side, away from the first side protection shell, of the bearing outer steel ring, and the inner wall of the second side protection shell makes contact with the outer wall of the bearing outer steel ring. The inner wall of the second side protection shell makes contact with the inner wall of the first side protection shell, and a plurality of locking nuts are arranged on the outer wall of the side, away from the first side protection shell, of the second side protection shell. According to the utility model, the service life of the ball bearing structure is prolonged, the stability of the shaft body after installation is guaranteed, and the convenience of the ball bearing structure during maintenance is improved.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, specifically to a long-life ball bearing structure. Background Technology

[0002] As an important component in mechanical equipment, the performance of ball bearings directly affects the stability and service life of the equipment. After long-term use, traditional ball bearings often experience performance degradation or even failure due to wear, dust contamination, and other reasons. Therefore, designing a ball bearing structure that can effectively extend its service life has become an urgent problem to be solved in the field of bearing technology.

[0003] A ball bearing structure, as described in CN215762842U, includes an inner ring, an outer ring, and steel balls installed between them. The inner ring has multiple transverse oil supply channels connected to longitudinal oil supply channels. The ports of the longitudinal oil supply channels are close to the surface of the steel balls and are filled with sponge. The ports of the transverse oil supply channels are located on the walls on both sides of the inner ring. After the sealing rings are installed, lubricating oil is injected into the transverse oil supply channels. The lubricating oil flows through the longitudinal oil supply channels to the steel balls, providing initial lubrication. After injection, the sponge at the end of the longitudinal oil supply channels stores the lubricating oil. During high-speed rotation of the steel balls, the stored lubricating oil provides real-time lubrication and cooling. While this ball bearing structure can be well applied, it typically relies solely on dust baffles to protect the ball components from both sides, leaving the outer and inner rings exposed to the external environment and susceptible to dust corrosion and damage. Further improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to provide a long-life ball bearing structure to solve the problem mentioned in the background art that although the ball bearing structure can be well applied, it usually only relies on dust baffles to shield and protect the ball components from both sides, leaving the outer and inner rings of the bearing still exposed to the external environment, thus making them susceptible to dust corrosion and damage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a long-life ball bearing structure, comprising an outer bearing ring, an inner bearing ring on the inner side of the outer bearing ring, a plurality of ball bodies movably disposed between the outer bearing ring and the inner bearing ring, a retainer mounted on the outer wall of the plurality of ball bodies, a first protective housing on one side of the outer bearing ring, the inner wall of the first protective housing contacting the outer wall of the outer bearing ring, a second protective housing on the side of the outer bearing ring away from the first protective housing, the inner wall of the second protective housing contacting the outer wall of the outer bearing ring, and the inner wall of the second protective housing contacting the inner wall of the first protective housing, a plurality of locking nuts on the outer wall of the second protective housing away from the first protective housing, and a locking bolt mounted on the outer wall of the first protective housing away from the second protective housing, one end of the locking bolt passing through the first protective housing and the second protective housing in sequence and threadedly connected to the locking nuts.

[0006] Preferably, a second inner ring is provided on the inner wall of the bearing inner steel ring, and one end of the second inner ring extends to the outside of the bearing inner steel ring. The second inner ring is provided to accommodate the first inner ring.

[0007] Preferably, the inner side of the second inner ring is provided with a first inner ring, one end of the first inner ring extends to the outside of the second inner ring, and the first inner ring is provided to limit and position the shaft.

[0008] Preferably, the inner wall of the second inner ring is provided with an internal thread, and the outer wall of the first inner ring is provided with an external thread. The external thread and the internal thread cooperate with each other, so that the first inner ring can be installed on the inner side of the second inner ring.

[0009] Preferably, the inner wall of the outer steel ring of the bearing is provided with an inner annular ball cavity, and one end of the ball body near the outer steel ring of the bearing extends into the interior of the inner annular ball cavity. The inner annular ball cavity is provided to limit and position the ball body.

[0010] Preferably, the outer wall of the inner steel ring of the bearing is provided with an outer annular ball cavity, and one end of the ball body near the inner steel ring of the bearing extends into the interior of the outer annular ball cavity. The outer annular ball cavity is provided to limit and position the ball body.

[0011] Preferably, a shaft is installed inside the first inner ring, and both ends of the shaft extend to the outside of the first inner ring. A limiting ring is installed on the outer wall of the second protective housing outside the shaft. Both ends of the limiting ring are provided with pin seats. A positioning pin is installed on the outer wall of the pin seat. One end of the positioning pin passes through the pin seat and is threadedly connected to the outer wall of the second protective housing. The positioning pin is used to install the limiting ring on the outer wall of the second protective housing.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the long life ball bearing structure not only extends the service life of the ball bearing structure, but also ensures the stability of the shaft after installation, and improves the convenience of ball bearing structure maintenance.

[0013] (1) By placing the first protective housing and the second protective housing on the outside of the bearing outer steel ring, with the inner walls of the first protective housing and the second protective housing attached to the outer wall of the bearing outer steel ring, and then tightening the locking bolt, one end of the locking bolt passes through the first protective housing and the second protective housing and is screwed into the locking nut, so that the first protective housing and the second protective housing are stably placed on the outside of the bearing outer steel ring. Thus, the first protective housing and the second protective housing can work together to shield and protect the bearing outer steel ring and other related bearing main components, thereby extending the service life of the ball bearing structure.

[0014] (2) By passing one end of the positioning screw through the pin seat and screwing it into the outer wall of the second protective housing, the limiting ring is placed on the outer wall of the second protective housing outside the shaft body, so that the limiting ring can limit the movement of one end of the shaft body. Furthermore, due to the setting of the first inner sleeve ring, the shaft body can be further limited, thereby ensuring the stability of the shaft body after installation.

[0015] (3) By separating the first protective housing and the second protective housing from the outside of the outer steel ring of the bearing, and then turning the first inner ring, one end of the first inner ring can be screwed out to the outside of the second inner ring due to the setting of the external and internal threads, so as to achieve the purpose of disassembling the ball bearing structure, thereby improving the convenience of ball bearing structure maintenance. Attached Figure Description

[0016] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 3 This is a side view of the outer steel ring of the bearing according to this utility model;

[0019] Figure 4This is a side view cross-sectional structural diagram of the inner steel ring of the bearing of this utility model.

[0020] In the diagram: 1. Outer steel ring of the bearing; 101. Inner annular ball cavity; 2. Inner steel ring of the bearing; 201. Outer annular ball cavity; 3. First protective housing; 4. Second protective housing; 5. Locking nut; 6. Locking bolt; 7. Limiting ring; 8. Positioning pin; 9. Shaft body; 10. Pin seat; 11. Ball body; 12. Cage; 13. First inner ring; 1301. External thread; 14. Second inner ring; 1401. Internal thread. 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. 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 scope of protection of the present utility model.

[0022] Please see Figure 1-4 The present invention provides an embodiment of a long-life ball bearing structure, including an outer bearing steel ring 1, an inner bearing steel ring 2 on the inner side of the outer bearing steel ring 1, a second inner ring 14 on the inner wall of the inner bearing steel ring 2, and one end of the second inner ring 14 extending to the outside of the inner bearing steel ring 2.

[0023] In use, the first inner ring 13 is positioned by setting the second inner ring 14.

[0024] The inner side of the second inner ring 14 is provided with a first inner ring 13, and one end of the first inner ring 13 extends to the outside of the second inner ring 14.

[0025] In use, the first inner collar 13 is used to limit and position the shaft 9.

[0026] The inner wall of the second inner ring 14 is provided with an internal thread 1401, and the outer wall of the first inner ring 13 is provided with an external thread 1301. The external thread 1301 and the internal thread 1401 cooperate with each other.

[0027] In use, the external thread 1301 and the internal thread 1401 are configured to install the first inner ring 13 on the inside of the second inner ring 14.

[0028] A shaft 9 is installed inside the first inner ring 13. Both ends of the shaft 9 extend to the outside of the first inner ring 13. A limit ring 7 is installed on the outer wall of the second protective housing 4 outside the shaft 9. Both ends of the limit ring 7 are provided with pin seats 10. A positioning screw 8 is installed on the outer wall of the pin seat 10. One end of the positioning screw 8 passes through the pin seat 10 and is threadedly connected to the outer wall of the second protective housing 4.

[0029] In use, the positioning screw pin 8 is set so that the limiting ring 7 can be installed on the outer wall of the second protective housing 4;

[0030] The inner wall of the outer steel ring 1 of the bearing is provided with an inner annular ball cavity 101, and the ball body 11 extends into the inner annular ball cavity 101 from one end near the outer steel ring 1 of the bearing.

[0031] In use, the inner annular ball cavity 101 is provided to limit and position the ball body 11.

[0032] The outer wall of the inner steel ring 2 of the bearing is provided with an outer annular ball cavity 201, and the ball body 11 extends into the inner annular ball cavity 201 from one end near the inner steel ring 2 of the bearing.

[0033] In use, the outer annular ball cavity 201 is provided to limit and position the ball body 11.

[0034] A plurality of ball bodies 11 are movably disposed between the outer steel ring 1 and the inner steel ring 2 of the bearing. A retainer 12 is installed on the outer wall of the plurality of ball bodies 11. A first protective housing 3 is provided on one side of the outer steel ring 1, and the inner wall of the first protective housing 3 is in contact with the outer wall of the outer steel ring 1. A second protective housing 4 is provided on the side of the outer steel ring 1 away from the first protective housing 3, and the inner wall of the second protective housing 4 is in contact with the outer wall of the outer steel ring 1 and the inner wall of the first protective housing 3. A plurality of locking nuts 5 are provided on the outer wall of the second protective housing 4 away from the first protective housing 3. A locking bolt 6 is installed on the outer wall of the first protective housing 3 away from the second protective housing 4. One end of the locking bolt 6 passes through the first protective housing 3 and the second protective housing 4 in sequence and is threadedly connected to the locking nut 5.

[0035] In this embodiment, the positioning pin 8 is first screwed into the outer wall of the second protective housing 4 through the pin seat 10, thereby placing the limiting ring 7 on the outer wall of the second protective housing 4 outside the shaft 9. The limiting ring 7 restricts the movement of one end of the shaft 9. The first inner sleeve 13 further restricts the movement of the shaft 9, ensuring the stability of the shaft 9 after installation. Then, the first protective housing 3 and the second protective housing 4 are placed on the outer side of the bearing outer steel ring 1, with the inner walls of the first protective housing 3 and the second protective housing 4 fitting against the outer wall of the bearing outer steel ring 1. Subsequently, the locking bolt 6 is tightened, with one end of the locking bolt 6 passing through the first protective housing 3 and the second protective housing 4 and screwed into the locking nut 5, thus stably placing the first protective housing 3 and the second protective housing 4 on the outer side of the bearing outer steel ring 1. This allows the first protective housing 3 to be secured by the first protective housing 3 and the second protective housing 4. The protective housing 3, together with the second protective housing 4, shields and protects the outer steel ring 1 and other related bearing body components to extend the service life of the ball bearing structure. In addition, in this ball bearing structure, the outer steel ring 1, the inner steel ring 2, the ball body 11, and the cage 12 constitute the main bearing components of this ball bearing structure. The inner annular ball cavity 101 and the outer annular ball cavity 201 limit the movement range of the ball body 11 to ensure the stability of the bearing body during operation. Finally, by removing the first protective housing 3 and the second protective housing 4 from the outside of the outer steel ring 1, and then turning the first inner ring 13, due to the setting of the external thread 1301 and the internal thread 1401, one end of the first inner ring 13 is screwed out to the outside of the second inner ring 14, thereby achieving the purpose of disassembling and maintaining the ball bearing structure, and thus completing the use of the ball bearing structure.

Claims

1. A long-life ball bearing arrangement, characterized by: The bearing includes an outer steel ring (1), an inner steel ring (2) on the inner side of the outer steel ring (1), and a plurality of ball bodies (11) movably disposed between the outer steel ring (1) and the inner steel ring (2). A retainer (12) is installed on the outer wall of each ball body (11). A first protective housing (3) is provided on one side of the outer steel ring (1), the inner wall of which contacts the outer wall of the outer steel ring (1). A second protective housing (4) is provided on the side of the outer steel ring (1) away from the first protective housing (3). The inner wall of the second protective housing (4) is in contact with the outer wall of the bearing outer steel ring (1), and the inner wall of the second protective housing (4) is in contact with the inner wall of the first protective housing (3). Several locking nuts (5) are provided on the outer wall of the second protective housing (4) away from the first protective housing (3). Locking bolts (6) are installed on the outer wall of the first protective housing (3) away from the second protective housing (4). One end of the locking bolt (6) passes through the first protective housing (3) and the second protective housing (4) in sequence and is threadedly connected to the locking nut (5).

2. A long-life ball bearing arrangement according to claim 1, characterized in that: The inner wall of the bearing inner steel ring (2) is provided with a second inner ring (14), one end of which extends to the outside of the bearing inner steel ring (2).

3. A long-life ball bearing arrangement according to claim 2, characterized in that: The inner side of the second inner ring (14) is provided with a first inner ring (13), and one end of the first inner ring (13) extends to the outside of the second inner ring (14).

4. A long-life ball bearing arrangement according to claim 3, wherein: The inner wall of the second inner ring (14) is provided with an internal thread (1401), and the outer wall of the first inner ring (13) is provided with an external thread (1301). The external thread (1301) and the internal thread (1401) cooperate with each other.

5. The long-life ball bearing construction of claim 1 wherein: The inner wall of the outer steel ring (1) of the bearing is provided with an inner annular ball cavity (101), and the ball body (11) extends into the inner annular ball cavity (101) at one end near the outer steel ring (1).

6. The long-life ball bearing construction of claim 1 wherein: The outer wall of the inner steel ring (2) of the bearing is provided with an outer annular ball cavity (201), and the ball body (11) extends into the interior of the outer annular ball cavity (201) from one end near the inner steel ring (2).

7. The long-life ball bearing construction of claim 3 wherein: A shaft (9) is installed inside the first inner ring (13). Both ends of the shaft (9) extend to the outside of the first inner ring (13). A limiting ring (7) is installed on the outer wall of the second protective housing (4) outside the shaft (9). Both ends of the limiting ring (7) are provided with pin seats (10). A positioning screw (8) is installed on the outer wall of the pin seat (10). One end of the positioning screw (8) passes through the pin seat (10) and is threadedly connected to the outer wall of the second protective housing (4).

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