Inclined three-lip sealing dustproof cover structure with adhesive
The oblique three-lip sealing and rubber dust cover structure solves the problem of insufficient bearing sealing, achieves effective sealing of grease and blocking of foreign matter, and improves the service life and performance of the bearing.
Patent Information
- Application Number
- CN202422994314.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-12-05
AI Technical Summary
The existing bearings have poor sealing performance, which leads to leakage of lubricating grease and intrusion of foreign matter, thus shortening the service life of the bearings.
The design of the oblique three-lip sealing rubber dust cover structure includes a dust cover body, an annular outer frame, an inverted folded edge, an annular rubber inner seal, a flat ring edge, a thin rubber layer, an inner sealing rubber oblique lip edge, a middle sealing rubber oblique lip edge and an outer sealing rubber oblique lip edge. Through the close cooperation of these components, grease leakage is prevented and foreign matter is blocked.
It effectively prevents bearing grease from overflowing, reduces wear, increases bearing service life, and blocks external pollutants from entering, ensuring the integrity of the bearing.
Smart Images
Figure CN223330978U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing accessories, in particular to the technical field of a sealing adhesive dustproof cover structure with inclined three lips. Background Art
[0002] Bearings are an important component in modern mechanical equipment. They are components that fix and reduce the load friction coefficient during mechanical transmission. When other components produce relative motion on the shaft, the bearing is used to reduce the friction coefficient during power transmission and keep the center position of the shaft fixed. Its main function is to support the mechanical rotating body, reduce its friction coefficient during movement, and ensure its rotation accuracy. Bearings are generally composed of an outer ring, an inner ring, and rolling elements located between the inner and outer rings. The sealing performance is poor. During the rotation of the bearing, the lubricating grease inside the bearing is easily leaked due to poor sealing. External dust, moisture and foreign matter can easily invade the inside of the bearing, causing bearing wear, affecting the normal use of the bearing and reducing the service life of the bearing. In order to better protect the bearing, it is necessary to propose the research and development of a sealing dust cover structure with an oblique three-lip and adhesive. Summary of the Invention
[0003] The purpose of this utility model is to solve the problems in the prior art and propose a sealing dust cover structure with an oblique three-lip and adhesive tape, which can prevent the grease in the bearing from overflowing, prevent foreign matter from entering the bearing, reduce the wear and loss inside the bearing, and increase the service life of the bearing.
[0004] To achieve the above-mentioned purpose, the utility model proposes a sealing dust cover structure with an inclined three lips and an adhesive, comprising a dust cover body, an annular exoskeleton, an inverted folded edge, an annular rubber inner seal, a plane ring edge, a thin rubber layer, an inner sealing rubber oblique lip edge, a middle sealing rubber oblique lip edge and an outer sealing rubber oblique lip edge, wherein the dust cover body is provided with an annular exoskeleton, an outer diameter position of the annular exoskeleton is provided with an inverted folded edge, an annular rubber inner seal is provided with affixed to the left side of the annular exoskeleton, a plane ring edge is provided in the middle of the annular exoskeleton, a thin rubber layer is provided at the outer end of the annular rubber inner seal which is in contact with the plane ring edge, an inner end of the annular rubber inner seal is provided with an inner sealing rubber oblique lip edge inclined to the lower right, a middle sealing rubber oblique lip edge is provided on the right side of the inner sealing rubber oblique lip edge, and an outer sealing rubber oblique lip edge is provided on the right side of the middle sealing rubber oblique lip edge, and the inner diameters of the inner sealing rubber oblique lip edge, the middle sealing rubber oblique lip edge and the outer sealing rubber oblique lip edge are the same.
[0005] Preferably, the inward folded edge is folded toward the right side of the annular exoskeleton, and the annular exoskeleton, the inward folded edge and the plane annular edge form an integrated structure.
[0006] Preferably, a buffer arc groove is provided in the middle of the left side of the annular rubber inner seal.
[0007] Preferably, a limiting fold is provided at the inner end of the annular outer skeleton, the inner diameter of the limiting fold is larger than the inner diameter of the outer sealing rubber oblique lip, and the limiting fold is fitted with the annular rubber inner seal.
[0008] Preferably, the inner sealing rubber bevel lip, the middle sealing rubber bevel lip and the outer sealing rubber bevel lip are arranged parallel to each other.
[0009] Preferably, the inner sealing rubber bevel lip, the middle sealing rubber bevel lip and the outer sealing rubber bevel lip have the same shape, and the cross-section of the inner sealing rubber bevel lip is an elongated strip.
[0010] Preferably, the annular rubber inner seal, the thin rubber layer, the inner sealing rubber bevel lip, the middle sealing rubber bevel lip and the outer sealing rubber bevel lip are an integrated structure.
[0011] The beneficial effects of the utility model are as follows: the utility model combines the dust cover body, the annular outer skeleton, the inward-turned folded edge, the annular rubber inner seal, the flat ring edge, the thin rubber layer, the inner sealing rubber bevel lip, the middle sealing rubber bevel lip and the outer sealing rubber bevel lip together, and after experimental optimization, the inward-turned folded edge of the annular outer skeleton is tightly matched with the bearing outer sleeve, and the thin rubber layer is tightly fitted with the ring, which effectively prevents grease leakage from the bearing; the long and thin inner sealing rubber bevel lip, the middle sealing rubber bevel lip and the outer sealing rubber bevel lip are tightly fitted with the ring, which can effectively prevent grease leakage from the bearing; and the torque is relatively light, which can effectively prevent external pollutants from entering the bearing, ensure the bearing is intact, and effectively prevent grease from overflowing from the bearing.
[0012] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the utility model of the sealing dust cover structure with three oblique lips and adhesive.
[0014] In the figure: 1-dust cover body, 2-annular outer frame, 3-inward folded edge, 4-annular rubber inner seal, 5-flat ring edge, 6-thin rubber layer, 7-inner sealing rubber bevel lip, 8-middle sealing rubber bevel lip, 9-outer sealing rubber bevel lip. DETAILED DESCRIPTION
[0015] See Figure 1The utility model provides a sealing dust cover structure with three oblique lips, including a dust cover body 1, an annular outer skeleton 2, an inverted folded edge 3, an annular rubber inner seal 4, a plane ring edge 5, a thin rubber layer 6, an inner sealing rubber oblique lip 7, a middle sealing rubber oblique lip 8 and an outer sealing rubber oblique lip 9. The dust cover body 1 is provided with an annular outer skeleton 2, an inverted folded edge 3 is provided on the outer diameter position of the annular outer skeleton 2, an annular rubber inner seal 4 is fitted on the left side of the annular outer skeleton 2, a plane ring edge 5 is provided in the middle of the annular outer skeleton 2, a thin rubber layer 6 fitted with the plane ring edge 5 is provided on the outer end of the annular rubber inner seal 4, an inner end of the annular rubber inner seal 4 is provided with an inner sealing rubber oblique lip 7 inclined to the lower right, a middle sealing rubber oblique lip 8 is provided on the right side of the inner sealing rubber oblique lip 7, and an outer sealing rubber oblique lip 9 is provided on the right side of the middle sealing rubber oblique lip 8. The inner diameters of the middle sealing rubber bevel lip 8 and the outer sealing rubber bevel lip 9 are the same, the inward folding edge 3 is folded to the right side of the annular exoskeleton 2, the annular exoskeleton 2, the inward folding edge 3 and the plane ring edge 5 are an integrated structure, a buffer arc groove is provided in the middle left side of the annular rubber inner seal 4, the inner end of the annular exoskeleton 2 is provided with a limiting folding edge, the inner diameter of the limiting folding edge is larger than the inner diameter of the outer sealing rubber bevel lip 9, the limiting folding edge is fitted with the annular rubber inner seal 4, the inner sealing rubber bevel lip 7, the middle sealing rubber bevel lip 8 and the outer sealing rubber bevel lip 9 are arranged parallel to each other, the inner sealing rubber bevel lip 7, the middle sealing rubber bevel lip 8 and the outer sealing rubber bevel lip 9 have the same shape, the cross-section of the inner sealing rubber bevel lip 7 is a slender strip, the annular rubber inner seal 4, the thin rubber layer 6, the inner sealing rubber bevel lip 7, the middle sealing rubber bevel lip 8 and the outer sealing rubber bevel lip 9 are an integrated structure.
[0016] The utility model combines a dust cover body 1, an annular exoskeleton 2, an inverted folded edge 3, an annular rubber inner seal 4, a flat ring edge 5, a thin rubber layer 6, an inner sealing rubber bevel lip 7, a middle sealing rubber bevel lip 8 and an outer sealing rubber bevel lip 9 together. After experimental optimization, the inverted folded edge 3 of the annular exoskeleton 2 is tightly matched with the bearing outer sleeve, and the thin rubber layer 6 is tightly fitted with the ring, which effectively prevents grease leakage from the bearing. The long and thin inner sealing rubber bevel lip 7, the middle sealing rubber bevel lip 8 and the outer sealing rubber bevel lip 9 are tightly fitted with the ring, which can effectively prevent grease leakage from the bearing. The torque is relatively light, which can effectively prevent external pollutants from entering the bearing, ensure the bearing is intact, and effectively prevent grease from overflowing from the bearing.
[0017] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the scope of protection of the present invention.
Claims
1. The oblique three-lip sealing adhesive dust cover structure is characterized by: The dust cover comprises a dust cover body (1), an annular outer frame (2), an inverted folded edge (3), an annular rubber inner seal (4), a plane ring edge (5), a thin rubber layer (6), an inner sealing rubber bevel lip (7), a middle sealing rubber bevel lip (8) and an outer sealing rubber bevel lip (9), wherein the dust cover body (1) is provided with an annular outer frame (2), an outer diameter position of the annular outer frame (2) is provided with an inverted folded edge (3), the left side of the annular outer frame (2) is provided with an annular rubber inner seal (4), and the middle portion of the annular outer frame (2) is provided with a A plane ring edge (5), a thin rubber layer (6) in contact with the plane ring edge (5) is provided at the outer end of the annular rubber inner seal (4), an inner end ring of the annular rubber inner seal (4) is provided with an inner sealing rubber bevel lip edge (7) tilted downward to the right, a middle sealing rubber bevel lip edge (8) is provided on the right side of the inner sealing rubber bevel lip edge (7), an outer sealing rubber bevel lip edge (9) is provided on the right side of the middle sealing rubber bevel lip edge (8), and the inner diameters of the inner sealing rubber bevel lip edge (7), the middle sealing rubber bevel lip edge (8) and the outer sealing rubber bevel lip edge (9) are the same.
2. The oblique three-lip sealing adhesive dust cover structure according to claim 1, characterized in that: The inward folding edge (3) is folded toward the right side of the annular exoskeleton (2); the annular exoskeleton (2), the inward folding edge (3) and the plane annular edge (5) form an integrated structure.
3. The oblique three-lip sealing adhesive dust cover structure according to claim 1, characterized in that: A buffer arc groove is provided in the middle of the left side of the annular rubber inner seal (4).
4. The oblique three-lip sealing adhesive dust cover structure according to claim 1, characterized in that: The inner end of the annular outer frame (2) is provided with a limit fold, the inner diameter of the limit fold is larger than the inner diameter of the outer sealing rubber oblique lip (9), and the limit fold is arranged to fit the annular rubber inner seal (4).
5. The oblique three-lip sealing adhesive dust cover structure according to claim 1, characterized in that: The inner sealing rubber bevel lip (7), the middle sealing rubber bevel lip (8) and the outer sealing rubber bevel lip (9) are arranged parallel to each other.
6. The oblique three-lip sealing adhesive dust cover structure according to claim 1, characterized in that: The inner sealing rubber bevel lip (7), the middle sealing rubber bevel lip (8) and the outer sealing rubber bevel lip (9) have the same shape, and the cross-section of the inner sealing rubber bevel lip (7) is a long and thin strip.
7. The oblique three-lip sealing adhesive dust cover structure according to claim 1, characterized in that: The annular rubber inner seal (4), the thin rubber layer (6), the inner sealing rubber bevel lip (7), the middle sealing rubber bevel lip (8) and the outer sealing rubber bevel lip (9) are an integrated structure.