Efficient sealing dustproof stainless steel bearing

Abstract

The utility model discloses an efficient sealed dustproof stainless steel bearing, which belongs to the technical field of bearings, and comprises an outer ring and an inner ring, a group of balls are movably connected in the middle of the outer ring and the inner ring, a pair of fixedly connected retainers are sleeved on the outer sides of the balls, thread bushings are fixedly connected with the inner side of the outer ring close to two ends, and the inner side of the outer ring close to two ends of the thread bushings is fixedly connected with the inner ring. An inner cover plate is in threaded connection with the outer side of the threaded sleeve, an outer cover plate is arranged on the outer side of the inner cover plate, two guide grooves are formed in the positions, close to the side edges, of the outer side of the inner cover plate, and clamping grooves and quick adjusting mechanisms are arranged in the centers of the two ends of the inner cover plate and the centers of the two ends of the outer cover plate correspondingly. The lubricating grease can be replaced under the condition that the protective cover is not detached, the problem of permeation of dust and impurities is solved, the sealing and dustproof effects of the bearing are improved, the connecting state of the two cover plates can be rapidly adjusted, and the lubricating grease is further conveniently replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, and more specifically to a highly efficient sealed and dustproof stainless steel bearing. Background Art

[0002] Stainless steel bearings are a type of ball bearings. Compared with ordinary bearings, they not only have obvious advantages in material, but also have much stricter control in terms of craftsmanship and precision than ordinary bearings. During the working process, stainless steel bearings work stably, have low noise, are corrosion-resistant, and are widely used.

[0003] Based on the above, the inventors found that: the existing stainless steel bearings are equipped with protective covers on the sides to seal and prevent dust, but the stainless steel bearings are usually filled with grease. After the grease is used for a long time, its performance gradually decreases and loses its lubricating effect. Therefore, the grease needs to be replaced regularly. During the replacement process, the protective cover needs to be removed. At this time, external dust and impurities can easily enter the ball bearing and cause pollution problems. Therefore, in view of this, the existing structure is studied and improved to provide a stainless steel bearing with high efficiency and dustproof, in order to achieve a more practical purpose. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a stainless steel bearing with high efficiency sealing and dustproof. The present invention provides two movable and adjustable cover plates, so that the grease can be replaced without removing the protective cover, thereby reducing the penetration of dust and impurities and improving the sealing and dustproof effect of the bearing. An adjustment component is also provided to quickly adjust the connection status of the two cover plates, further facilitating the replacement of the grease.

[0006] 2. Technical solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A highly efficient sealed and dustproof stainless steel bearing comprises an outer ring and an inner ring, wherein a group of balls are movably connected in the center of the outer ring and the inner ring, a pair of fixedly connected retaining frames are sleeved on the outer side of the balls, a threaded sleeve is fixedly connected at both ends of the inner side of the outer ring, an inner cover plate is threadedly connected on the outer side of the threaded sleeve, an outer cover plate is arranged on the outer side of the inner cover plate, two guide grooves are arranged on the outer side of the inner cover plate near the side, and a clamping groove and a quick adjustment mechanism are arranged at the center of both ends of the inner cover plate and the center of both ends of the outer cover plate, two first connecting holes and two second connecting holes are respectively penetrated in the interior of the inner cover plate and the interior of the outer cover plate, and a pair of limit rings are fixedly connected at the upper and lower ends of the inner side of the outer cover plate;

[0009] The quick adjustment mechanism comprises a clamping rod fixedly connected to the inner side of the pull ring, sliding blocks fixedly connected to both sides of the clamping rod, and a return spring is arranged on one side of the sliding block.

[0010] Furthermore, the inner cover plate and the outer cover plate have the same shape, and the inner and outer side edges of the inner cover plate are respectively fitted with the outer surface of the inner ring and the inner surface of the outer ring.

[0011] Further, the two first connecting holes are respectively matched with the two second connecting holes.

[0012] Furthermore, the cross section of the limiting ring is T-shaped, the two pairs of limiting rings are respectively located inside the two guide grooves, and the limiting rings are movably connected to the guide grooves.

[0013] Furthermore, the pull ring is located on the outside of the outer cover plate, and one end of the clamping rod on the inner side passes through the outer cover plate and is adapted to the clamping groove.

[0014] Furthermore, the clamping rod and the sliding block are both slidably connected to the outer cover plate.

[0015] Furthermore, two ends of the return spring are fixedly connected to the sliding block and the inner surface of the outer cover plate respectively.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) This solution provides a bearing seal protection by setting an inner cover plate to cooperate with the outer cover plate, and at the same time rotates the outer cover plate, and ensures the rotation stability of the outer cover plate through a limit ring and a guide groove, so that the first connecting hole is aligned with the second connecting hole, and the grease can be replaced. Compared with the prior art, two movable and adjustable cover plates are provided, so that the grease can be replaced without removing the protective cover, reducing the penetration of dust and impurities and improving the bearing sealing and dustproof effect.

[0019] (2) By setting up a quick adjustment mechanism, the pull ring pulls the clamping rod outward to separate the clamping groove, and the outer cover plate is movable and rotated. Under the action of the reset spring, the clamping rod is reset and clamped with the clamping groove, and the outer cover plate and the inner cover plate are restored to a fixed connection state. Compared with the prior art, the setting of the adjustment component can quickly adjust the connection state of the two cover plates, further facilitating the replacement of grease. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0022] Figure 3 This is a disassembled diagram of the inner cover plate and the outer cover plate of the utility model;

[0023] Figure 4 It is a schematic diagram of the inner side of the inner cover plate and the outer cover plate of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the quick adjustment mechanism of the utility model.

[0025] Explanation of the numbers in the figure: 1. Outer ring; 2. Inner ring; 3. Ball; 4. Cage; 5. Threaded sleeve; 6. Inner cover plate; 7. Outer cover plate; 8. Guide groove; 9. First connecting hole; 10. Snap-in groove; 11. Second connecting hole; 12. Quick adjustment mechanism; 13. Limiting ring; 14. Pull ring; 15. Snap-in rod; 16. Sliding block; 17. Reset spring. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0027] Example:

[0028] See also Figure 1-5 , a highly efficient sealed and dustproof stainless steel bearing, comprising an outer ring 1 and an inner ring 2, wherein a group of balls 3 are movably connected in the center of the outer ring 1 and the inner ring 2, a pair of fixedly connected retaining frames 4 are sleeved on the outer side of the balls 3, a threaded sleeve 5 is fixedly connected to both ends of the inner side of the outer ring 1, an inner cover plate 6 is threadedly connected to the outer side of the threaded sleeve 5, an outer cover plate 7 is arranged on the outer side of the inner cover plate 6, two guide grooves 8 are arranged on the outer side of the inner cover plate 6, and a clamping groove 10 and a quick adjustment mechanism 12 are arranged in the center of both ends of the inner cover plate 6 and the center of both ends of the outer cover plate 7, two first connecting holes 9 and two second connecting holes 11 are respectively penetrated in the inner cover plate 6 and the inner cover plate 7, and a pair of limit rings 13 are fixedly connected to the inner side of the outer cover plate 7 at both upper and lower ends;

[0029] The quick adjustment mechanism 12 includes a clamping rod 15 fixedly connected to the inner side of the pull ring 14, and sliding blocks 16 are fixedly connected to both sides of the clamping rod 15. A return spring 17 is provided on one side of the sliding block 16. In order to quickly adjust the active state of the outer cover plate 7, the quick adjustment mechanism 12 is provided.

[0030] See also Figure 2The inner cover plate 6 and the outer cover plate 7 have the same shape, and the inner and outer sides of the inner cover plate 6 are respectively in contact with the outer surface of the inner ring 2 and the inner surface of the outer ring 1. The inner cover plate 6 cooperates with the outer cover plate 7 to seal and prevent dust from entering the bearing.

[0031] See also Figure 3 The two first connecting holes 9 are respectively matched with the two second connecting holes 11. The outer cover plate 7 is rotated to align the two first connecting holes 9 with the two second connecting holes 11 respectively. The inside of the bearing can be flushed through the connecting holes, and new grease can be injected into the bearing to complete the grease replacement work.

[0032] See also Figure 4 The cross section of the limiting ring 13 is T-shaped. The two pairs of limiting rings 13 are respectively located inside the two guide grooves 8, and the limiting rings 13 are movably connected to the guide grooves 8. The limiting rings 13 and the guide grooves 8 play a role of rotational guidance. The limiting rings 13 cooperate with the guide grooves 8 to ensure the rotational stability of the outer cover plate 7.

[0033] See also Figure 3 The pull ring 14 is located on the outside of the outer cover plate 7, and the inner end of the clamping rod 15 passes through the outer cover plate 7 and is adapted to the clamping groove 10. In the sealed state, the clamping rod 15 is clamped with the clamping groove 10. At this time, the two first connecting holes 9 and the two second connecting holes 11 are staggered, and the bearing is in a sealed state. The clamping rod 15 is pulled outward by the pull ring 14 to separate from the clamping groove 10, and the outer cover plate 7 is movable and rotated.

[0034] See also Figure 5 The clamping rod 15 and the sliding block 16 are both slidably connected to the outer cover plate 7 , and the sliding block 16 compresses the return spring 17 when the clamping rod 15 moves.

[0035] See also Figure 5 The two ends of the reset spring 17 are fixedly connected to the sliding block 16 and the inner surface of the outer cover plate 7 respectively, and the grease replacement work is completed. The outer cover plate 7 is rotated to reset. Under the action of the reset spring 17, the clamping rod 15 is reset and clamped with the clamping groove 10, so that the outer cover plate 7 and the inner cover plate 6 are fixedly connected, and the bearing continues to be sealed and dustproof.

[0036] When in use: Under normal conditions, the clamping rod 15 is clamped with the clamping groove 10. At this time, the two first connecting holes 9 and the two second connecting holes 11 are staggered, and the interior of the bearing is sealed. At this time, dust is not easy to enter between the outer ring 1 and the inner ring 2. When the bearing has been used for a long time and grease needs to be replaced, the clamping rod 15 is pulled outwardly through the pull ring 14 to separate the clamping groove 10, and the outer cover plate 7 is movable and rotated. When the outer cover plate 7 is rotated, the limit ring 13 and the guide groove 8 play a role of rotation guide, and the outer cover plate 7 is rotated. The limiting ring 13 cooperates with the guide groove 8 to ensure the rotation stability of the outer cover plate 7, so that the two first connecting holes 9 are aligned with the two second connecting holes 11 respectively, so that the inside of the bearing can be flushed through the connecting holes, and new grease can be injected into the bearing to complete the grease replacement work. After the grease replacement work is completed, the outer cover plate 7 is rotated to reset, and under the action of the reset spring 17, the clamping rod 15 is reset and clamped with the clamping groove 10, so that the outer cover plate 7 and the inner cover plate 6 are restored to a fixed connection state, and the bearing continues to be sealed and dustproof.

[0037] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A highly efficient sealed and dustproof stainless steel bearing, comprising an outer ring (1) and an inner ring (2), characterized in that: A group of balls (3) are movably connected in the center of the outer ring (1) and the inner ring (2); a pair of fixedly connected retaining frames (4) are sleeved on the outer side of the balls (3); a threaded sleeve (5) is fixedly connected to the inner side of the outer ring (1) at both ends; an inner cover plate (6) is threadedly connected to the outer side of the threaded sleeve (5); an outer cover plate (7) is arranged on the outer side of the inner cover plate (6); two guide grooves (8) are arranged on the outer side of the inner cover plate (6); and a clamping groove (10) and a quick adjustment mechanism (12) are arranged in the center of both ends of the inner cover plate (6) and the center of both ends of the outer cover plate (7); two first connecting holes (9) and two second connecting holes (11) are respectively penetrated in the interior of the inner cover plate (6) and the interior of the outer cover plate (7); a pair of limit rings (13) are fixedly connected to the inner side of the outer cover plate (7) at both upper and lower ends; The quick adjustment mechanism (12) comprises a pull ring (14) whose inner side is fixedly connected to a clamping rod (15), both sides of the clamping rod (15) are fixedly connected to sliding blocks (16), and a return spring (17) is provided on one side of the sliding block (16).

2. The highly efficient sealed and dustproof stainless steel bearing according to claim 1, characterized in that: The inner cover plate (6) and the outer cover plate (7) have the same shape, and the inner and outer sides of the inner cover plate (6) are respectively fitted with the outer surface of the inner ring (2) and the inner surface of the outer ring (1).

3. The highly efficient sealed and dustproof stainless steel bearing according to claim 1, characterized in that: The two first communicating holes (9) are respectively matched with the two second communicating holes (11).

4. The highly efficient sealed and dustproof stainless steel bearing according to claim 1, characterized in that: The cross section of the limiting ring (13) is T-shaped, and the two pairs of limiting rings (13) are respectively located inside the two guide grooves (8), and the limiting rings (13) are movably connected to the guide grooves (8).

5. The highly efficient sealed and dustproof stainless steel bearing according to claim 1, characterized in that: The pull ring (14) is located on the outside of the outer cover plate (7), and the inner end of the clamping rod (15) penetrates the outer cover plate (7) and is adapted to the clamping groove (10).

6. The highly efficient sealed and dustproof stainless steel bearing according to claim 1, characterized in that: The clamping rod (15) and the sliding block (16) are both slidably connected to the outer cover plate (7).

7. The highly efficient sealed and dustproof stainless steel bearing according to claim 1, characterized in that: The two ends of the return spring (17) are respectively fixedly connected to the sliding block (16) and the inner surface of the outer cover plate (7).

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