Dustproof bearing ring

Abstract

This utility model discloses a dustproof bearing ring, relating to the field of mechanical transmission and bearing support technology. The utility model includes a base plate, a support plate fixedly connected to the upper surface of the base plate, a bushing assembly fixedly mounted on the upper surface of the support plate, a dustproof cover fixedly connected to the upper surface of the base plate, and connecting plates symmetrically fixedly connected to the outer surface of the dustproof cover. A quick-locking mechanism works in conjunction with the locking sleeve. The quick-locking mechanism includes a pin housing, the outer surface of which is fixedly connected to the connecting plate. A locking spring is fitted onto the outer surface of the locking pin, with both ends of the locking spring abutting against the lower surface of the pressing cap and the inner wall of the pin housing, respectively. Hook balls are symmetrically arranged inside the pin housing. This utility model, through the combined use of the quick-locking mechanism and the bushing assembly, achieves improved dustproof efficiency and facilitates bearing maintenance.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission and bearing support technology, specifically a dustproof bearing ring. Background Technology

[0002] Bearing rings are a core component of a bearing. They are annular parts that directly contact and guide the rolling elements (such as steel balls and rollers). Their main functions are to support the rolling elements, transmit loads, and guide the rotation of the shaft system. Bearing rings are typically made of high-carbon chromium bearing steel (such as GCr15), which, after heat treatment, possesses high hardness, high wear resistance, and good dimensional stability to ensure the bearing can withstand loads and maintain accuracy during long-term high-speed operation. Their accuracy (such as roundness, cylindricity, and surface roughness) directly affects the bearing's rotational accuracy, vibration noise, and service life, making them one of the key components determining bearing performance.

[0003] Traditional bearing rings often rely on a single seal, which makes them susceptible to dust intrusion and lubricant leakage in harsh environments such as dusty and humid conditions. This leads to accelerated bearing wear and shortened lifespan. Furthermore, traditional dust cover components are mostly bolted together, requiring specialized tools for disassembly and assembly, which is time-consuming and inconvenient for maintenance. Utility Model Content

[0004] To address the problems of inconvenient disassembly and insufficient dust protection of dust covers, the purpose of this utility model is to provide a dustproof bearing ring.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: a dustproof bearing ring, comprising a base plate, a support plate fixedly connected to the upper surface of the base plate, a bushing assembly fixedly installed on the upper surface of the support plate, a dust cover fixedly connected to the upper surface of the base plate, connecting plates symmetrically fixedly connected to the outer surface of the dust cover, a quick-locking mechanism fixedly provided inside each of the two connecting plates, a locking sleeve symmetrically fixedly installed inside the base plate, the quick-locking mechanism cooperating with the locking sleeve, the quick-locking mechanism comprising a pin housing, the outer surface of the pin housing fixedly connected to the connecting plate, a locking pin inserted inside the pin housing, a pressing cap fixedly connected to the top of the locking pin, a locking spring sleeved on the outer surface of the locking pin, the two ends of the locking spring respectively abutting against the lower surface of the pressing cap and the inner wall of the pin housing, and hook balls symmetrically provided inside the pin housing.

[0006] Preferably, the bushing assembly includes a bearing seat, the outer surface of which is fixedly connected to a support plate by bolts, an outer ring bushing is embedded inside the bearing seat, an inner ring bushing is fixedly connected to the inner surface of the outer ring bushing, a bearing corrugated washer is sandwiched between the outer ring bushing and the inner ring bushing, an outer ring locking nut is threaded to one side of the outer ring bushing, inner covers are symmetrically fixedly connected to the outer surface of the bearing seat, an outer bearing cover is fitted on one side of each of the two inner covers, and a shaft end sealing ring is fixedly connected between the outer bearing cover and the inner cover.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] 1. This utility model utilizes a quick-locking mechanism and a bushing assembly. The quick-locking mechanism, through the cooperation of a hook ball and a wedge-shaped ball groove, enables the rapid assembly and disassembly of the dust cover and the base plate. It is particularly suitable for scenarios requiring high-frequency maintenance, such as textile machinery, significantly reducing downtime. In the bushing assembly, the axial locking design of the outer ring locking nut effectively prevents component movement. The outer and inner covers of the shaft seat form a double seal through the shaft end sealing ring and sealing groove, effectively preventing the intrusion of pollutants from the dusty environment. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0012] Figure 3 This is a schematic diagram of the quick-locking mechanism of this utility model.

[0013] Figure 4 This is a schematic diagram of the bushing assembly structure of this utility model.

[0014] In the diagram: 11. Base plate; 12. Dust cover; 13. Connecting plate; 14. Quick locking mechanism; 15. Locking sleeve; 16. Support plate; 17. Bushing assembly; 18. Pin housing; 19. Locking pin; 20. Locking spring; 21. Press cap; 22. Wedge ball groove; 23. Hook ball; 24. Limiting hole; 25. Slot; 26. Shaft seat; 27. Outer ring bushing; 28. Inner ring bushing; 29. ​​Inner cover; 30. Shaft seat outer cover; 31. Shaft end sealing ring; 32. Outer ring locking nut; 33. Bearing corrugated gasket. Detailed Implementation

[0015] 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.

[0016] Example: Figure 1-4 As shown, this utility model provides a dustproof bearing sleeve, including a base plate 11, which is the core basic load-bearing component. The outer surface of the base plate 11 is provided with a rectangular array of mounting holes for fixing the component to the frame equipment. The overall installation stability is ensured by bolt connection. A support plate 16 is fixedly connected to the upper surface of the base plate 11 to provide installation support for the bushing assembly 17. A dustproof cover 12 is fixedly connected to the outer surface to form a protective space. A plate 13 is symmetrically fixed to the outer surface of the dustproof cover 12 as the mounting base of the quick-locking mechanism 14. Locking sleeves 15 are symmetrically fixed inside the base plate 11. The quick-locking mechanism 14 is adapted to the locking sleeves 15 to form a quick connection system for the dustproof cover 12.

[0017] The outer surface of the pin housing 18 is fixedly connected to the connecting plate 13, and a locking pin 19 is inserted inside. A pressing cap 21 is fixedly welded to the top of the locking pin 19. A locking spring 20 is sleeved on the outer surface of the locking pin 19. The two ends of the locking spring 20 abut against the lower surface of the pressing cap 21 and the inner wall of the pin housing 18, respectively, to provide elastic preload. Hook balls 23 are symmetrically arranged inside the pin housing 18. A wedge-shaped ball groove 22 is opened at the lower end of the locking pin 19, and the hook ball 23 is embedded in the groove. Limiting holes 24 are symmetrically opened at the lower end of the pin housing 18. The diameter of the hole is smaller than that of the hook ball 23 to limit the displacement of the hook ball 23 and realize quick insertion locking and unlocking.

[0018] The bearing seat 26 is fixedly connected to the support plate 16 by bolts. An outer ring bushing 27 is embedded inside it. An inner ring bushing 28 is fixedly connected to the inner side of the outer ring bushing 27. A bearing corrugated washer 33 is sandwiched between the two to compensate for assembly tolerances and provide preload. An outer ring locking nut 32 is threaded on one side of the outer ring bushing 27 to lock axially and prevent movement. The outer surface of the bearing seat 26 is symmetrically provided with inner covers 29, and the outer cover of the bearing seat 29 is fitted with an outer cover 30. A shaft end sealing ring 31 is installed between the two to form a shaft end sealing and protection unit to prevent dust and foreign objects from entering. The bearing seat 26 is provided with mounting holes that fit the outer ring bushing 27 and the inner ring bushing 28. The inner wall of the hole is opened with a keyway for component positioning and anti-rotation, ensuring the coaxiality of the shaft system. The inner wall of the locking sleeve 15 is symmetrically opened with slots 25, which engage with the hook ball 23 of the quick locking mechanism 14 to achieve quick connection. A sealing groove is provided between the inner cover 29 and the bearing seat 26, and between the shaft end sealing ring 31 and the outer cover 30 of the bearing seat, so that O-rings and other auxiliary seals can be added to enhance the dustproof and waterproof performance.

[0019] Working principle: When connecting the dust cover 12 to the base plate 11, place the dust cover 12 above the support plate 16. The dust cover 12 wraps around the outside of the base plate 11 to form initial protection. Press the pressing cap 21 of the quick-locking mechanism 14 inside the connecting plate 13, which drives the locking pin 19 to move downward and compress the locking spring 20. At this time, the wedge-shaped ball groove 22 at the lower end of the locking pin 19 moves downward, and its slope forces the hook ball 23 to retract inward along the inner wall of the pin housing 18, inserting the locking pin 19 into the lock sleeve 15. Then, release the pressing cap 21, and the locking spring 20 returns to its original position, pushing the locking pin 19 upward. The change in slope of the wedge-shaped ball groove 22 causes the hook ball 23 to squeeze into the slot 25 through the limiting hole 24 to achieve locking. To unlock, press the pressing cap 21 again to achieve the unlocked state, completing the quick disassembly of the dust cover 12.

[0020] In the bushing assembly 17, the bearing seat 26 is fixed to the base plate 11 by the support plate 16, providing rigid support for the entire shaft system. The outer ring bushing 27 and the inner ring bushing 28 are positioned by the mounting holes on both sides of the bearing seat 26 to prevent rotation. With the elastic preload of the bearing wave washer 33, assembly tolerances are compensated and the bearing is implicitly stable in operation. The outer ring locking nut 32 further locks the outer ring bushing 27 to prevent axial movement. The inner cover 29 and the outer cover 30 of the bearing seat form a multiple seal through the shaft end sealing ring 31 and the sealing groove, preventing external dust and moisture from entering the shaft system and preventing lubricant leakage, thus ensuring long-term stable operation of the bearing.

[0021] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A dustproof bearing ring, comprising a base plate (11), characterized in that: A support plate (16) is fixedly connected to the upper surface of the base plate (11), a bushing assembly (17) is fixedly installed on the upper surface of the support plate (16), a dust cover (12) is fixedly connected to the upper surface of the base plate (11), and connecting plates (13) are symmetrically fixedly connected to the outer surface of the dust cover (12). A quick locking mechanism (14) is fixedly provided inside both connecting plates (13), and a locking sleeve (15) is symmetrically fixedly installed inside the base plate (11). The quick locking mechanism (14) and the locking sleeve (15) are used in conjunction. The quick locking mechanism (14) includes a pin housing (18), the outer surface of which is fixedly connected to the connecting plate (13), a locking pin (19) is inserted inside the pin housing (18), a pressing cap (21) is fixedly connected to the top of the locking pin (19), a locking spring (20) is sleeved on the outer surface of the locking pin (19), and the two ends of the locking spring (20) abut against the lower surface of the pressing cap (21) and the inner wall of the pin housing (18) respectively. Hook balls (23) are symmetrically arranged inside the pin housing (18).

2. The dustproof bearing ring as described in claim 1, characterized in that, The bushing assembly (17) includes a bearing seat (26), the outer surface of which is fixedly connected to a support plate (16) by bolts. An outer ring bushing (27) is embedded inside the bearing seat (26), and an inner ring bushing (28) is fixedly connected to the inner surface of the outer ring bushing (27). A bearing wave washer (33) is sandwiched between the outer ring bushing (27) and the inner ring bushing (28). An outer ring locking nut (32) is threaded to one side of the outer ring bushing (27). Inner covers (29) are symmetrically fixedly connected to the outer surface of the bearing seat (26). A bearing outer cover (30) is fitted on one side of each of the two inner covers (29). A shaft end sealing ring (31) is fixedly connected between the bearing outer cover (30) and the inner cover (29).

3. A dustproof bearing ring as described in claim 1, characterized in that, The lower outer surface of the locking pin (19) is provided with a wedge-shaped ball groove (22), the outer surface of the wedge-shaped ball groove (22) is set with an inclined slope, and the two hook balls (23) are located inside the wedge-shaped ball groove (22).

4. A dustproof bearing ring as described in claim 1, characterized in that, The lower outer surface of the pin housing (18) is symmetrically provided with limiting holes (24), and the diameter of the two limiting holes (24) is smaller than the diameter of the two hook balls (23).

5. A dustproof bearing ring as described in claim 1, characterized in that, The lock sleeve (15) has symmetrical slots (25) inside, and the two slots (25) are used in conjunction with two hook balls (23).

6. A dustproof bearing ring as described in claim 2, characterized in that, The bearing seat (26) is provided with mounting holes that are adapted to the outer ring bushing (27) and the inner ring bushing (28), and the inner wall of the mounting hole is provided with a keyway for positioning and preventing rotation.

7. A dustproof bearing ring as described in claim 2, characterized in that, The inner cover (29) and the shaft seat (26), and the shaft end sealing ring (31) and the outer cover (30) of the shaft seat are respectively provided with sealing grooves or auxiliary sealing installation positions.

8. A dustproof bearing ring as described in claim 1, characterized in that, The outer surface of the base plate (11) has a plurality of mounting holes arranged in a rectangular array.

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