Outer ring assembly for linear ball bearing

Abstract

The utility model relates to bearing technical field discloses the outer ring subassembly of linear ball bearing, including outer ring, the inside detachable connection of outer ring has retainer, the inside fixed connection of retainer has a plurality of bearing plate, the outside of bearing plate is provided with the sliding slot, the outside sliding connection of sliding slot has a plurality of ball, the inside of retainer is provided with quick -release mechanism, the outside fixed connection of outer ring has the protection mechanism, the quick -release mechanism includes the slotted hole, the outside of slotted hole is established in the inside of retainer, the inside sliding connection of slotted hole has the follower rod, the outside of follower rod is equipped with tension spring, the outside fixed connection of tension spring has the limit stop. In the utility model, through pulling the follower ring, make the follower rod drive limit stop and move, and then quickly assemble and disassemble, can shorten maintenance replacement time greatly, enhance the flexibility and reliability of equipment use.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to the outer ring assembly of a linear ball bearing. Background Technology

[0002] In automated production lines, it can ensure the smooth operation of equipment such as robotic arms and conveyor belts, and meet the needs of rapid positioning and repetitive motion. In the field of precision machine tools, it can withstand radial and axial loads during cutting and maintain machining accuracy. In sorting equipment in logistics and warehousing, it can adapt to high-frequency start-stop and heavy-duty transportation.

[0003] In some linear ball bearings, the outer ring assembly typically has a cage fitted inside the outer ring. The cage and balls are confined within the outer ring by radially extending or attached contractions from both ends of the outer ring. Some bearings employ a technique of inserting a special sealing ring into the annular sealing groove of the outer ring. The rigid retaining ring of the sealing ring is an open ring with a cut-off end, which can deform elastically, making it easy to install and providing a reliable seal.

[0004] However, in actual use, there are problems with disassembly and assembly. Disassembly requires special tools, which can easily damage parts. The lubricating cotton is tightly connected to the slot, and replacement requires disassembly layer by layer, which is time-consuming and laborious. In response to the above problems, the outer ring assembly of the linear ball bearing is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an outer ring assembly for linear ball bearings, aiming to improve the problem of inconvenient disassembly and assembly of some linear ball bearing assemblies in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The outer ring assembly of a linear ball bearing includes an outer ring, a cage detachably connected inside the outer ring, multiple support plates fixedly connected inside the cage, a sliding groove formed on the outside of the support plates, multiple balls slidably connected outside the sliding groove, a quick-release mechanism provided inside the cage, and a protective mechanism fixedly connected to the outside of the outer ring.

[0008] The quick-release mechanism includes a slotted hole, the outside of which is formed inside the retainer. A follower rod is slidably connected inside the slotted hole. A tension spring is sleeved on the outside of the follower rod. A limit plate is fixedly connected to the outside of the tension spring. A limit assembly is fixedly connected inside the retainer.

[0009] As a further description of the above technical solution:

[0010] The limiting assembly includes a limiting ring, the limiting ring is externally fixedly connected to the inside of the retainer, and the follower rod is externally fixedly connected to a follower ring;

[0011] As a further description of the above technical solution:

[0012] The protective mechanism includes a support ring, the outside of which is fixedly connected to the outside of the outer ring, and a sealing ring is fixedly connected to the outside of the support ring.

[0013] As a further description of the above technical solution:

[0014] A spring washer is fixedly connected to the outside of the support ring, and a dust cover is fixedly connected to the outside of the support ring.

[0015] As a further description of the above technical solution:

[0016] The outer ring is fixedly connected to a plurality of support rings, and the sealing ring is fixedly connected to the outside of the support rings.

[0017] As a further description of the above technical solution:

[0018] The cage has multiple bearing plates fixedly connected inside, and the balls are slidably connected to the outside of the slide groove.

[0019] As a further description of the above technical solution:

[0020] One end of the tension spring is fixedly connected to the inside of the cage, and the other end of the tension spring is fixedly connected to the inside of the cage.

[0021] As a further description of the above technical solution:

[0022] The follower ring is fixedly connected to the outside of the follower rod, and the follower rod is slidably connected to the inside of the cage.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, by pulling the follower ring, the follower rod drives the limit plate to move, which in turn drives the tension spring to move, thus enabling rapid assembly and disassembly. This can significantly shorten maintenance and replacement time, improve equipment maintenance efficiency, and the convenient assembly and disassembly method can reduce the difficulty of operation, reduce labor costs and skill requirements. After assembly, the precision is stable, making it suitable for high-frequency maintenance scenarios and enhancing the flexibility and reliability of equipment use.

[0025] 2. In this utility model, the protective mechanism can block dust and impurities from entering and prevent grease loss. The support ring enhances structural stability, the spring washer ensures that the seal is always in contact, and the dust cover isolates external pollutants. The multi-component coordinated protection can extend the bearing life and ensure operating accuracy. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of the outer ring assembly of the linear ball bearing proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the cage structure of the outer ring assembly of the linear ball bearing proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the sealing ring structure of the outer ring assembly of the linear ball bearing proposed in this utility model;

[0029] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0030] Legend:

[0031] 1. Outer ring; 2. Cage; 3. Bearing plate; 4. Slide groove; 5. Ball bearing; 6. Slotted hole; 7. Follower rod; 8. Tension spring; 9. Limiting plate; 10. Follower ring; 11. Limiting ring; 12. Support ring; 13. Sealing ring; 14. Spring washer; 15. Dust cover. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 , Figure 2 , Figure 4This utility model provides an embodiment of an outer ring assembly of a linear ball bearing, including an outer ring 1. The outer ring 1 is the main frame with extremely low surface roughness, forming a smooth and stable cylindrical inner surface, which provides a stable support environment and smooth motion track for the internal components. A cage 2 is detachably connected inside the outer ring 1. The cage 2 can be precisely embedded along the axial direction. When disassembling, only an external force in a specific direction needs to be applied to easily separate it, which greatly improves the convenience of maintenance. Multiple bearing plates 3 are fixedly connected inside the cage 2. The bearing plates 3 have a groove 4 on the outside. The groove 4 has a U-shaped cross section and the groove wall is hardened and has strong wear resistance, providing a precise and low-resistance rolling path for the balls 5. Multiple balls 5 are slidably connected outside the groove 4. The balls 5 can roll freely along the groove 4, converting sliding friction into rolling friction, greatly reducing running resistance and realizing efficient linear motion transmission. A quick-release mechanism is provided inside the cage 2, and a protective mechanism is fixedly connected outside the outer ring 1.

[0034] The quick-release mechanism includes a slotted hole 6, which is a long, narrow through-hole penetrating the side wall of the retainer 2. Its length is parallel to the axial direction of the retainer 2, and its width is slightly larger than the diameter of the follower rod 7, ensuring smooth sliding within it. The slotted hole 6 is located inside the retainer 2, and the follower rod 7 is slidably connected inside the slotted hole 6. The follower rod 7 is cylindrical with rounded ends to prevent scratching other components. A tension spring 8 is fitted around the outside of the follower rod 7. When the follower rod 7 is subjected to external force and slides along the slotted hole 6, the tension spring 8 will compress or stretch accordingly. The tension spring 8 stores elastic potential energy through elastic deformation. When the external force is removed, the tension spring 8 releases energy and pushes the follower rod 7 to reset. The tension spring 8 is externally fixedly connected to a limit plate 9, and the cage 2 is internally fixedly connected to a limit assembly. The limit assembly includes a limit ring 11, which is externally fixedly connected to the inside of the cage 2. The follower rod 7 is externally fixedly connected to a follower ring 10, which slides along the inner wall of the cage 2. The two work closely together to strictly control the movement trajectory and range of the follower rod 7, preventing it from deviating or jamming, and ensuring the reliability and stability of the quick-release operation.

[0035] Reference Figure 1 , Figure 2 , Figure 3The protective mechanism includes a support ring 12, which is externally fixed to the outside of the outer ring 1. The support ring 12 has a circular structure and is firmly fixed to the outer circumferential surface of the outer ring 1 by precision welding or high-strength bolts. A sealing ring 13 is externally fixed to the support ring 12. The sealing ring 13 is lip-shaped and has multiple raised sealing lips on its inner side. The sealing lips have good elasticity and can tightly fit the surface of the outer ring 1 after installation. A spring washer 14 is externally fixed to the support ring 12. The spring washer 14 has an annular corrugated structure, which allows it to... When subjected to pressure, it can produce elastic deformation, thereby providing continuous axial pressure to ensure that the sealing ring 13 and the dust cover 15 remain tightly fitted during long-term use, avoiding loosening due to vibration or external force, and enhancing the sealing reliability and durability of the protective mechanism. When the bearing is working, the sealing lip will adaptively adjust the fit with the slight vibration or displacement of the outer ring 1, effectively blocking external dust, moisture and small particles from entering the bearing, while preventing internal lubricating oil leakage, playing a double sealing protection role. The dust cover 15 is fixedly connected to the outside of the support ring 12.

[0036] The dust cover 15 is also fixedly connected to the outside of the support ring 12. It is a disc-shaped structure with an arc-shaped protrusion, and its diameter is slightly larger than that of the support ring 12. The arc-shaped design of the dust cover 15 not only increases the structural strength, but also effectively guides the external airflow. Multiple support rings 12 are fixedly connected to the outside of the outer ring 1. The sealing ring 13 is fixedly connected to the outside of the support ring 12. Multiple bearing plates 3 are fixedly connected to the inside of the cage 2. The ball 5 is slidably connected to the outside of the slide groove 4. One end of the tension spring 8 is fixedly connected to the inside of the cage 2, and the other end of the tension spring 8 is fixedly connected to the inside of the cage 2. The follower ring 10 is fixedly connected to the outside of the follower rod 7, and the follower rod 7 is slidably connected to the inside of the cage 2.

[0037] Working principle: During quick-release assembly, the follower rod 7 is pulled out of one end of the retainer 2. The follower rod 7 slides along the slotted hole 6 that passes through the side wall of the retainer 2 and is parallel to the axial direction. The tension spring 8 sleeved on the outside is compressed and accumulates elastic potential energy, so that the follower rod 7 slides along the inner wall of the limiting ring 11 inside the retainer 2, ensuring accurate movement trajectory. When the follower rod 7 slides into place, the connection state between the retainer 2 and the outer ring 1 changes. At this time, the retainer 2 can be accurately embedded into the outer ring 1 along the axial direction. The external force applied to the follower rod 7 is removed, the tension spring 8 releases elastic potential energy, and pulls the follower rod 7 back to the initial position, so that the quick-release mechanism is reset and the assembly is completed.

[0038] The sealing lip of the sealing ring 13 on the support ring 12 is tightly fitted to the outer ring 1 and adjusts adaptively with the vibration of the outer ring 1. The spring washer 14 is subjected to pressure and undergoes elastic deformation, continuously providing axial pressure to press the sealing ring 13 and the dust cover 15 tightly onto the outer ring 1. Even if the bearing encounters vibration or external impact during operation, the spring washer 14 can ensure that the sealing ring 13 and the dust cover 15 always remain tightly fitted, preventing loosening, enhancing the overall sealing reliability, blocking the intrusion of external impurities in all directions, preventing lubricating oil leakage, and ensuring the stable operation of the internal components of the bearing.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An outer ring assembly of a linear ball bearing, comprising an outer ring (1), characterized in that: The outer ring (1) is detachably connected to a retainer (2), and the retainer (2) is fixedly connected to a plurality of bearing plates (3). The bearing plates (3) are provided with a sliding groove (4) on the outside. The sliding groove (4) is slidably connected to a plurality of balls (5). The retainer (2) is provided with a quick release mechanism, and the outer ring (1) is fixedly connected to a protective mechanism. The quick-release mechanism includes a slotted hole (6), the outside of which is opened inside the retainer (2). A follower rod (7) is slidably connected inside the slotted hole (6). A tension spring (8) is sleeved on the outside of the follower rod (7). A limit plate (9) is fixedly connected to the outside of the tension spring (8). A limit assembly is fixedly connected inside the retainer (2).

2. The outer ring assembly of the linear ball bearing according to claim 1, characterized in that: The limiting assembly includes a limiting ring (11), the limiting ring (11) is externally fixedly connected to the inside of the retainer (2), and the follower rod (7) is externally fixedly connected to a follower ring (10).

3. The outer ring assembly of the linear ball bearing according to claim 2, characterized in that: The protective mechanism includes a support ring (12), which is fixedly connected to the outside of the outer ring (1), and a sealing ring (13) is fixedly connected to the outside of the support ring (12).

4. The outer ring assembly of the linear ball bearing according to claim 3, characterized in that: A spring washer (14) is fixedly connected to the outside of the support ring (12), and a dust cover (15) is fixedly connected to the outside of the support ring (12).

5. The outer ring assembly of the linear ball bearing according to claim 4, characterized in that: The outer ring (1) is fixedly connected to a plurality of support rings (12), and the sealing ring (13) is fixedly connected to the outside of the support rings (12).

6. The outer ring assembly of the linear ball bearing according to claim 1, characterized in that: The cage (2) has multiple bearing plates (3) fixedly connected inside, and the ball (5) is slidably connected to the outside of the groove (4).

7. The outer ring assembly of the linear ball bearing according to claim 1, characterized in that: One end of the tension spring (8) is fixedly connected to the inside of the retainer (2), and the other end of the tension spring (8) is fixedly connected to the inside of the retainer (2).

8. The outer ring assembly of the linear ball bearing according to claim 2, characterized in that: The follower ring (10) is fixedly connected to the outside of the follower rod (7), and the follower rod (7) is slidably connected to the inside of the retainer (2).

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