Oil seal structure with bidirectional oil return line
By designing an oil seal structure with a two-way oil return line, the problem of reduced sealing performance of traditional oil seals in high-speed environments is solved, and effective oil return and improved sealing performance are achieved.
Patent Information
- Application Number
- CN202423168355.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-12-20
AI Technical Summary
The sealing performance of traditional oil seals deteriorates under high-speed environments, and the limited area of the linear oil return design causes oil film leakage, affecting sealing performance and reliability.
An oil seal structure with a two-way oil return line is designed, including a dust lip, a skeleton, a V-shaped strip and a sealing corrugated edge groove, to ensure that the oil returns along a specific path and enhance the sealing performance.
Effectively prevent oil leakage and waste, improve the structural strength and durability of the oil seal, and maintain good sealing performance under various movement conditions.
Smart Images
Figure CN223447649U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to high -speed environment's oil seal technical field, especially in oil seal structure with bidirectional oil return line belongs to oil seal technical field. BACKGROUND
[0002] With the rapid development of science and technology, the application of oil seal is more and more extensive, and the requirements are more and more severe. As a kind of sealing liquid medium (such as oil, water, etc.), the oil seal must ensure the sealing performance of the cavity. However, when the oil seal is used in the environment of very high speed and dry running, its sealing performance and reliability are severely challenged.
[0003] The lubricating oil between the lip of the traditional oil seal structure and the shaft can contact the shaft to play a lubricating role. However, when lubricating, the area that can be affected by the linear oil return design is very limited, resulting in oil film and fluid extravasation, and reducing the sealing performance of the oil seal.
[0004] Therefore, an oil seal structure with bidirectional oil return line is provided. UTILITY MODEL CONTENTS
[0005] Therefore, the utility model provides an oil seal structure with bidirectional oil return line to solve or alleviate the technical problems in the prior art, at least to provide a beneficial choice.
[0006] The technical scheme of the utility model is realized as follows: an oil seal structure with bidirectional oil return line, comprising: an oil seal body, a dustproof lip arranged on the outer end face of the oil seal body, a mounting groove arranged on the outer circumferential surface of the oil seal body, a dustproof lip arranged on the outer top of the oil seal body, a skeleton arranged in the oil seal body, a positioning groove arranged on the inner side of the oil seal body, an oil return line arranged on the inner side of the oil seal body, and a V-shaped strip arranged on the inner side of the oil seal body.
[0007] Further preferably, the outer edge of the oil seal body is provided with an oil seal edge groove, and the outer shape of the oil seal edge groove is a sealed corrugation.
[0008] Further preferably, the skeleton is made of L-shaped metal, the oil seal body is made of rubber, and the dustproof lip is made of plastic material.
[0009] Further preferably, the inner side of the positioning groove is provided with a spring limiting groove, and the spring limiting groove is embedded with an elastic component.
[0010] Further preferably, the V-shaped strip is in the shape of a V, and the V-shaped strip is located at the top of the oil return line.
[0011] Further preferably, the positioning groove is trumpet-shaped and downwardly open, and the elastic component is a ring spring.
[0012] The embodiment of the utility model has the following advantages because of adopting the above technical scheme:
[0013] The utility model discloses oil seal main part design is used with rotating shaft or other moving parts close cooperation, prevents oil leakage, and the dustproof lip of oil seal main part's outside top is equipped with and is made of plastic material, has certain hardness to prevent dust from entering, also has enough tenacity to adapt to the slight movement of moving part, to prevent dust and other impurities from entering the inside of oil seal, be equipped with a framework in the inside of oil seal main part, can strengthen the structural strength and durability of oil seal, provide the support and strength required for oil seal, V-shaped strip ensures that oil can return along a specific path, avoids the leakage and waste of oil, and the oil seal edge groove is arranged on the outer side edge of the oil seal main body, the outer side shape of the edge groove is designed as a sealing corrugation, which helps to further enhance the sealing performance of the oil seal, and the spring limiting groove is used for installing the elastic component, which not only enhances the positioning stability of the oil seal, but also provides a dynamic sealing effect to a certain extent, so that the oil seal can maintain good sealing performance under various motion conditions.
[0014] The above summary is intended to illustrate the present description and is not intended to be limiting in any way. Further aspects, implementations, and features of the present utility model will be apparent from the drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.
[0016] Figure 1 It is a first appearance three-dimensional structure diagram of the utility model;
[0017] Figure 2 It is a sectional internal three-dimensional structure diagram of the utility model;
[0018] Figure 3 It is an oil seal edge groove structure diagram of the utility model;
[0019] Figure 4 It is an elevation structure diagram of the utility model;
[0020] Figure 5 It is an oil return line structure diagram of the utility model.
[0021] 1, oil seal body; 101, dust lip; 102, positioning groove; 103, oil seal edge groove; 104, framework; 105, spring limiting groove; 106, V-shaped strip; 107, oil return line. DETAILED DESCRIPTION
[0022] In the following, only some exemplary embodiments are simply described. As those skilled in the art can realize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.
[0023] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0024] As Figures 1-5 shown, the oil seal structure with bidirectional oil return line provided by the embodiments of the present application comprises: an oil seal body 1, a dust lip 101 arranged on the outer end surface of the oil seal body 1, a mounting groove arranged on the outer circumferential surface of the oil seal body 1, a dust lip 101 arranged on the outer top of the oil seal body 1, a framework 104 arranged in the oil seal body 1, a positioning groove 102 arranged on the inner side of the oil seal body 1, an oil return line 107 arranged on the inner side of the oil seal body 1, a V-shaped strip 106 arranged on the inner side of the oil seal body 1, the V-shaped strip 106 being composed of two acute triangles, the two acute triangles being acute at one end close to each other, an oil seal edge groove 103 arranged on the outer edge of the oil seal body 1, and the outer shape of the oil seal edge groove 103 being a sealing corrugation.
[0025] The dust lip 101 is made of plastic material, has a certain hardness to prevent dust from entering, and has sufficient toughness to adapt to the slight movement of the moving part, so as to prevent dust and other impurities from entering the inside of the oil seal. A framework 104 is arranged in the inside of the oil seal body 1, which can enhance the structural strength and durability of the oil seal.
[0026] Referring to Figure 2 , the framework 104 is made of L-shaped metal, the oil seal body 1 is made of rubber, the dust lip 101 is made of plastic material, a spring limiting groove 105 is arranged on the inner side of the positioning groove 102, and an elastic component is embedded in the spring limiting groove 105.
[0027] The V-shaped strip 106 ensures that the oil can flow back along a specific path, avoiding leakage and waste of oil. The oil seal body 1 is provided with an oil seal edge groove 103 on the outer edge, and the outer shape of the edge groove is designed as a sealing corrugation, which helps to further enhance the sealing performance of the oil seal.
[0028] Referring to Figure 3, the V-shaped strip 106 is V-shaped, the V-shaped strip 106 is located at the top of the oil return line 107, the positioning groove 102 is trumpet-shaped and is arranged to be downwardly open, and the elastic component is a ring spring.
[0029] By scraping the oil film and slight fluid back to the V-shaped strip 106, the V-shaped acute triangular oil return design can work, and the V-shaped strip 106 ensures that the oil can flow back along a specific path, avoiding leakage and waste of the oil.
[0030] In the working process of the utility model, the dustproof lip 101 is made of plastic material, has certain hardness to prevent dust from entering, has enough toughness to adapt to the slight movement of the moving part, and is used to prevent dust and other impurities from entering the inside of the oil seal; a framework 104 is arranged in the inside of the oil seal body 1, the structure strength and durability of the oil seal are enhanced, the support and strength required by the oil seal are provided, the V-shaped strip 106 ensures that the oil can flow back along a specific path, avoids leakage and waste of the oil, the outer side edge of the oil seal body 1 is provided with an oil seal edge groove 103, the outer side shape of the edge groove is designed as a sealing corrugation, the sealing performance of the oil seal is further enhanced, the spring limiting groove 105 installs the elastic component, not only the positioning stability of the oil seal is enhanced, but also the dynamic sealing effect is provided to a certain extent, the oil seal can maintain good sealing performance under various movement conditions.
[0031] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of various changes or replacements within the technical range disclosed by the utility model, and these should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.
Claims
1. An oil seal structure with a two-way oil return line, characterized by: The invention comprises an oil seal body (1), a dustproof lip (101) arranged on the outer end surface of the oil seal body (1), and a mounting groove arranged on the outer circumferential surface of the oil seal body (1); the dustproof lip (101) is arranged on the outer top of the oil seal body (1); a skeleton (104) is arranged inside the oil seal body (1); a positioning groove (102) is arranged on the inner side of the oil seal body (1); an oil return line (107) is arranged on the inner side of the oil seal body (1); and a V-shaped strip (106) is arranged on the inner side of the oil seal body (1); the V-shaped strip (106) is composed of two sharp triangles, and the two sharp triangles are close to each other at one end and are sharp.
2. The oil seal structure with a two-way oil return line according to claim 1, characterized in that: An oil seal edge groove (103) is provided on the outer edge of the oil seal main body (1), and the outer side shape of the oil seal edge groove (103) is a sealing corrugation.
3. The oil seal structure with a two-way oil return line according to claim 1, characterized in that: The skeleton (104) is made of L-shaped metal, the oil seal body (1) is made of rubber, and the dust lip (101) is made of plastic material.
4. The oil seal structure with a two-way oil return line according to claim 1, characterized in that: A spring limiting groove (105) is provided inside the positioning groove (102), and an elastic component is embedded in the spring limiting groove (105).
5. The oil seal structure with a two-way oil return line according to claim 1, characterized in that: The V-shaped bar (106) is V-shaped and is located at the top of the oil return line (107).
6. The oil seal structure with a two-way oil return line according to claim 1, characterized in that: The positioning groove (102) is arranged in a trumpet shape with a downward opening, and the elastic component is an annular spring.