Sealing structure capable of achieving radial and axial sealing and dust prevention
By designing an annular sealing structure and combining radial and axial extensions and bends, the sealing and dustproofing problems of the sealing structure under complex working conditions are solved, the multi-dimensional sealing performance is improved, the equipment life is extended and the maintenance cost is reduced.
Patent Information
- Application Number
- CN202423122140.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing sealing structures are difficult to achieve both radial and axial sealing under complex working conditions, and their dust-proof capabilities are insufficient, leading to leakage of media and intrusion of pollutants inside the equipment, affecting the equipment's operating efficiency and lifespan.
An annular sealing structure is designed, which includes radial and axial extension parts, combined with multiple sealing and dust-proof parts. The bending part of the skeleton is used to provide extension space and elastic force to maintain sealing performance. The angle design enhances the wear resistance of the sealing structure.
It achieves radial and axial sealing at the same time, prevents medium leakage and pollutant intrusion, extends equipment operation cycle, reduces maintenance frequency and cost, and improves reliability in mechanical environments.
Smart Images
Figure CN223469727U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a sealing structure, especially a sealing structure capable of realizing radial and axial sealing and dustproof. BACKGROUND
[0002] In many industrial equipment and mechanical systems, the sealing performance directly affects the overall operation efficiency, reliability and service life of the equipment. Whether it is a rotating part or a reciprocating part, effective sealing is needed to prevent internal medium leakage and external dust, impurities and other intrusions. Traditional sealing structures often focus on single-direction sealing function, such as only radial sealing or axial sealing. In some complex working conditions, such single-function sealing structure is difficult to meet the multi-dimensional sealing requirements. In addition, with the increasingly harsh industrial environment, the increase of dust, sand and other pollutants puts higher requirements on the dustproof ability of the sealing structure. The sealing lip of the existing sealing structure is relatively short, and once it is worn, the sealing effect will be greatly reduced, which can easily lead to problems such as loss of internal lubricating medium, accelerated wear of parts, frequent system failures and other problems, so there is an urgent need for a new sealing structure that can comprehensively consider radial and axial sealing and has good dustproof performance, to improve the overall performance and stability of industrial equipment, reduce maintenance cost and prolong the operation cycle of the equipment. SUMMARY
[0003] To solve the above problems, the utility model provides a sealing structure capable of realizing radial and axial sealing and dustproof, which is annular as a whole and comprises a first skeleton, a first skeleton having a radial extension and an axial extension, a first skeleton being covered with a first sealing part, the first sealing part forming an outer oil seal along the radial extension, the first sealing part forming a first axial sealing part, a second radial sealing, a third radial dustproof part, a fourth axial dustproof part and a fifth radial dustproof part along the axial extension,
[0004] Further comprising a second skeleton, the second skeleton being covered with a second sealing part, the second sealing part forming an inner oil seal along the radial direction of the second skeleton, the first end of the second skeleton being a first bending part, the first bending part abutting against the first sealing part, the second end of the second skeleton being fixedly connected with a third skeleton, the first axial sealing part abutting against the third skeleton, the second radial sealing part being tightly clamped on the second skeleton by a spring, the third radial dustproof part, the fourth axial dustproof part and the fifth radial dustproof part abutting against the second skeleton.
[0005] Further, the third skeleton has a second bending part, the second bending part being oppositely arranged with the first bending part. This bending part not only increases the strength of the skeleton, but also provides extension space for the radial and axial sealing and dustproof parts.
[0006] Preferably, the included angle between the first axial sealing part and the third skeleton is 55°-85°.
[0007] Preferably, the included angle between the third radial dustproof part, the fourth axial dustproof part and the fifth radial dustproof part and the second skeleton is 30°-85°.
[0008] Preferably, the first axial sealing part and the fourth axial dustproof part are bent at two ends, and the bending angle is 120°-180°.
[0009] The included angle between the sealing part and the dustproof part and the skeleton can prolong the length of the dustproof part and the sealing part in the sealing structure, so that the dustproof part and the sealing part can still be tightly pressed against the skeleton due to the elastic force even in the case of wear, thereby prolonging the service life of the sealing structure. In combination with the extension space provided by the bending part and the two bending sections of the sealing part and the dustproof part, the effect is further strengthened.
[0010] The sealing structure as described above, the first skeleton is "L" shaped.
[0011] The utility model has the advantages of:
[0012] 1. The radial and axial sealing and dustproof functions can be realized simultaneously, the limitations of the single direction sealing of the traditional sealing structure are solved, the complex working conditions can be adapted, the internal medium of the equipment is stabilized, and the leakage and the invasion of the external pollutants are prevented.
[0013] 2. The sealing part and the dustproof part form a specific included angle with the skeleton, and the sealing performance can be maintained by the elastic force even in the case of wear; the extension space is provided by the bending part, and the two bending sections of the sealing part and the dustproof part further strengthen the effect, the equipment failure caused by the sealing failure is reduced, the maintenance frequency is reduced, the overall operation cycle of the equipment is prolonged, and the operation cost is reduced.
[0014] 3. The second bending part on the third skeleton is oppositely arranged with the first bending part of the second skeleton, which not only provides extension space for the sealing and dustproof part, but also increases the overall strength of the skeleton, and improves the reliability and durability of the sealing structure in the complex mechanical environment. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a sectional view of the sealing structure (half).
[0016] Figure 2 It is a sectional view of the sealing structure during installation and use (half). DETAILED DESCRIPTION
[0017] The utility model will be further described in combination with the specific implementation.
[0018] Example one:
[0019] As Figure 1 shown, the embodiment provides a sealing structure that can realize radial and axial sealing and dust prevention, and the sealing structure is annular as a whole, Figure 1 which is a half cross section, including a first skeleton 1 having radial and axial extensions, the first skeleton 1 being covered with a first sealing part 2, the first sealing part 2 forming an outer oil seal 20 along the radial extension, the first sealing part 2 forming a first axial sealing part 21, a second radial sealing part 22, a third radial dust prevention part 23, a fourth axial dust prevention part 24 and a fifth radial dust prevention part 25 along the axial extension.
[0020] The fourth axial dust prevention part 24 can be multiple, and in the embodiment, there are two.
[0021] Further including a second skeleton 3 covered with a second sealing part 4, the second sealing part 4 forming an inner oil seal along the radial extension of the second skeleton 3, the second skeleton 3 having a first bent part 31 at the first end, the first bent part 31 abutting against the first sealing part 2, the second skeleton 3 having a third skeleton 6 fixedly connected at the second end, the first axial sealing part 21 abutting against the third skeleton 6, the second radial sealing part 22 being tightly clamped on the second skeleton 3 by a spring 5, the third radial dust prevention part 23, the fourth axial dust prevention part 24 and the fifth radial dust prevention part 25 abutting against the second skeleton 3.
[0022] The third skeleton 6 has a second bent part 60 arranged opposite to the first bent part 31. Such bent parts not only increase the strength of the skeleton, but also provide extension space for the radial and axial sealing and dust prevention parts.
[0023] The included angle between the first axial sealing part and the third skeleton 6 is 55°-85°. The included angle between the third radial dust prevention part 23, the fourth axial dust prevention part 24 and the fifth radial dust prevention part 25 and the second skeleton 3 is 30°-85°. The first axial sealing part and the fourth axial dust prevention part 24 are divided into two ends with a bending angle of 120°-180°.
[0024] Embodiment two:
[0025] As Figure 2 shown, the embodiment shows the working state of the sealing part: the outer oil seal 20 is connected to the shell 100 by interference fit through the first skeleton 1, the inner oil seal is connected by interference fit through the second skeleton 3 and is sleeved on the shaft 101, and even if the dust prevention and sealing parts are worn, they will be reattached to the skeleton by elastic force, thereby ensuring the sealing property.
[0026] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application.
[0027] Although the specific embodiments of the present application are described above, the present application is not limited to the above. It should be understood by those skilled in the art that various modifications or changes can be made to the technical solutions of the present application without creative labor, and still fall within the protection scope of the present application.
Claims
1. A sealing structure capable of achieving radial and axial sealing and dustproofing, characterized in that: The first skeleton has radial extension and axial extension, the first skeleton is covered with a first sealing part, the first sealing part forms an outer oil seal along the radial extension, the first sealing part forms a first axial sealing part, a second radial sealing, a third radial dustproof part, a fourth axial dustproof part and a fifth radial dustproof part along the axial extension, The second skeleton is covered with a second sealing part, the second sealing part forms an inner oil seal along the radial extension of the second skeleton, the first end of the second skeleton is a first bending part, the first bending part abuts against the first sealing part, the second end of the second skeleton is fixedly connected with a third skeleton, the first axial sealing part abuts against the third skeleton, the second radial sealing part is tightly clamped on the second skeleton by a spring, the third radial dustproof part, the fourth axial dustproof part and the fifth radial dustproof part abut against the second skeleton.
2. The sealing structure capable of achieving radial and axial sealing and dust prevention according to claim 1, characterized in that, The included angle between the first axial sealing part and the third skeleton is 55°-85°.
3. The seal structure capable of achieving radial and axial sealing and dust prevention according to claim 1, characterized in that, The included angle between the third radial dustproof part, the fourth axial dustproof part and the fifth radial dustproof part and the second skeleton is 30°-85°.
4. The seal structure capable of achieving radial and axial sealing and dust prevention according to claim 1, wherein The first axial sealing part and the fourth axial dustproof part are divided into two ends and are bent, and the bending angle is 120°-180°.
5. The seal structure capable of achieving radial and axial sealing and dust prevention according to claim 1, wherein The first skeleton is "L" shaped.
6. The seal structure capable of achieving radial and axial sealing and dust prevention according to claim 1, wherein The third skeleton has a second bending part, and the second bending part is arranged opposite to the first bending part.