Frameless bearing sealing ring

Abstract

The utility model provides a frameless bearing sealing ring. The frameless bearing sealing ring comprises a rubber ring and a spring ring, the rubber ring is composed of an upper end fixing section, a middle deformation section and a lower end lip opening part. The section formed by the upper end fixing section, the middle deformation section and the lower end lip portion is of a T-shaped structure with an opening in one side, and the middle deformation section and the lower end lip portion are connected to form a C-shaped annular outer lip. The spring ring is arranged in the outer lip; the end, close to the shaft diameter, of the lower end lip portion is provided with an inner lip. According to the utility model, the internal pressure of different bearing units is met by changing the shape and size of the middle deformation section; the magnitude of interference and the sealing performance of the lip of the sealing ring are ensured by changing the compression amount of the spring ring; and after the framework is removed, the processing manufacturability of the large sealing ring is improved, lossless mounting and dismounting are easier to realize, and the dismounting and mounting requirements are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing, and particularly relates to a non-skeleton bearing sealing ring. Background Art

[0002] For traditional rubber sealing rings, their structure is generally a combination of rubber and a skeleton. However, for the sealing requirements of large ship bearing units, due to the large shaft diameter, difficult installation, and harsh working conditions, the skeleton-combined sealing ring has the disadvantage of being inconvenient during disassembly and assembly, and is prone to damage to the bearing and the sealing ring during installation. Considering the processing technology and disassembly requirements of the sealing ring, a non-skeleton design is required to change the structure of the sealing ring, which solves the processing technology and disassembly requirements and meets the use requirements of the large ship bearing unit for the sealing ring. Summary of the Utility Model

[0003] In order to solve the above problems, the present application provides a non-skeleton bearing sealing ring, which improves the processing technology of large sealing rings, is easier to achieve damage-free installation and disassembly, and meets the disassembly and assembly requirements.

[0004] In order to achieve the above purpose, the present application provides a non-skeleton bearing sealing ring, including a rubber ring and a spring ring; the rubber ring is composed of an upper fixed section, a middle deformation section, and a lower lip section; the cross-section formed by the upper fixed section, the middle deformation section, and the lower lip section is a "T" shape with an opening on one side, and the middle deformation section and the lower lip section are connected to form a "C"-shaped annular outer lip; the spring ring is placed inside the outer lip; an inner lip is provided at one end of the lower lip section close to the shaft diameter.

[0005] Further, the cross-sectional shape of the upper fixed section is rectangular; rounded corners are provided at the four corners of the upper fixed section.

[0006] Further, the middle deformation section extends from the upper fixed section to the lower lip section;

[0007] Further, the lower lip section becomes thinner from the inner lip towards its free end; the cross-sectional shape of the lower lip section is semi-circular.

[0008] Further, the cross-sectional shape of the inner lip is a right triangle.

[0009] Further, the inner diameter of the spring ring is the same as the inner diameter of the outer lip.

[0010] Further, the upper fixed section, the middle deformation section, the lower lip section, the outer lip, and the inner lip are of an integrally formed structure.

[0011] Compared with the prior art, the beneficial effects produced by the present utility model are:

[0012] By changing the shape and size of the middle deformation section to meet different internal pressures of the bearing unit; by changing the compression amount of the spring coil to ensure the interference amount and sealing performance of the sealing ring lip; after removing the skeleton, the processing manufacturability of large sealing rings (with a diameter of about 1000 mm) is improved, and it is easier to achieve damage-free installation and disassembly, meeting the requirements of disassembly and assembly. Brief Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the present utility model;

[0014] Figure 2 It is a schematic structural diagram of the rubber ring of the basic utility model;

[0015] In the figure: 01, rubber ring, 02, spring coil, 03, upper end fixing section, 04, middle deformation section, 05, lower end lip section, 06, outer lip, 07, inner lip. Specific Embodiments

[0016] Hereinafter, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. According to these detailed descriptions, those skilled in the art can clearly understand the present application and can implement the present application. Without violating the principle of the present application, the features in different specific embodiments can be combined to obtain new implementation manners, or some features in certain embodiments can be replaced to obtain other preferred implementation manners.

[0017] See the attached Figure 1 and 2 , the present application provides a non-skeleton bearing sealing ring, including a rubber ring 01 and a spring coil; the rubber ring 01 is composed of an upper end fixing section, a middle deformation section and a lower end lip section; the cross-section formed by the upper end fixing section, the middle deformation section and the lower end lip section is a "T" shaped structure with an opening on one side, and the middle deformation section 04 and the lower end lip section 05 are connected to form a "C" shaped annular outer lip 06; the spring coil 02 is placed inside the outer lip 06; an inner lip 07 is provided at one end of the lower end lip section 05 close to the shaft diameter.

[0018] Furthermore, the cross-sectional shape of the upper end fixing section 03 is rectangular; there are rounded corners at the four corners of the upper end fixing section 03.

[0019] It should be noted that when the sealing ring is installed, the upper end fixing section 03 is placed in the external groove, and the upper end fixing section 03 is axially compressed by the two side retaining rings to play a role in positioning and sealing.

[0020] Furthermore, the middle deformation section 04 extends from the upper end fixing section 03 to the lower end lip section 05;

[0021] Furthermore, the lower lip portion 05 thins from the inner lip 07 towards its free end; the cross-sectional shape of the lower lip portion 05 is semi-circular.

[0022] Furthermore, the cross-sectional shape of the inner lip 07 is a right triangle.

[0023] Furthermore, the inner diameter of the spring coil 02 is the same as the inner diameter of the outer lip 06.

[0024] It should be noted that the outer lip 06 has a storage function. A small amount of grease is coated inside it. By reducing the rotational friction through the gap between the sealing ring and the bearing, good lubricity is provided for each sealing lip, reducing wear and extending the service life. The spring coil 02 of the present application generates a pre-tightening force on the lower lip portion 05, which indirectly acts on the shaft, greatly improving the sealing performance.

[0025] Furthermore, the upper fixed section 03, the middle deformation section 04, the lower lip portion 05, the outer lip 06, and the inner lip 07 are an integrally formed structure.

[0026] It should be noted that this sealing ring removes the skeleton and is only composed of two parts, the rubber ring 01 and the spring coil 02. It can prevent external dust and muddy water from entering the bearing, thereby improving the service life of the bearing and extending the maintenance cycle of the bearing.

[0027] Although the present application has been described above with reference to specific embodiments, those skilled in the art should understand that many modifications can be made to the configuration and details disclosed in the present application within the principles and scope of the present application. The protection scope of the present application is determined by the appended claims, and the claims are intended to cover all modifications included in the literal meaning or scope of the equivalents of the technical features in the claims.

Claims

1. A skeletonless bearing seal ring, characterized in that: It includes a rubber ring and a spring ring; the rubber ring consists of an upper fixed section, a middle deformed section, and a lower lip section; the cross-section formed by the upper fixed section, the middle deformed section, and the lower lip section is a "T"-shaped structure with an opening on one side, and the middle deformed section and the lower lip section are connected to form a "C"-shaped annular outer lip; the spring ring is placed inside the outer lip; an inner lip is provided at one end of the lower lip section close to the shaft diameter.

2. The non-skeleton bearing seal ring according to claim 1, wherein: The cross-section shape of the upper fixed section is rectangular; rounded corners are provided at the four corners of the upper fixed section.

3. The non-skeleton bearing sealing ring according to claim 1 or 2, characterized in that: The middle deformed section extends from the upper fixed section to the lower lip section.

4. The non-skeleton bearing sealing ring according to claim 3, wherein: The lower lip section becomes thinner from the inner lip towards its free end; the cross-section shape of the lower lip section is semi-circular.

5. The non-skeleton bearing seal ring according to claim 4, wherein: The cross-section shape of the inner lip is a right triangle.

6. The non-skeleton bearing seal ring according to claim 1 or 5, characterized in that: The inner diameter of the spring ring is the same as the inner diameter of the outer lip.

7. The non-skeleton bearing seal ring according to claim 1, wherein: The upper fixed section, the middle deformed section, the lower lip section, the outer lip, and the inner lip are of an integrally formed structure.

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