A new type of symmetrical embedded high pressure sealing ring structure
Through the symmetrical inlay high-pressure seal ring structure, the multi-layer inlay technology and symmetrical inlay design are used to solve the bonding problem caused by pressure deformation of the seal ring under high pressure conditions, and the deformation reduction of the seal surface and the improvement of operation stability are achieved.
Patent Information
- Application Number
- CN202420705027.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-08
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-04-08
AI Technical Summary
Under high pressure conditions, the pressure deformation of the sealing ring is large, which affects the fitting of the friction pair of the sealing ring, resulting in an increase in the seal leakage amount and a decrease in operation stability.
The symmetrical inlay high-pressure seal ring structure is adopted, and the inner and outer diameters of the seal ring are arranged respectively. The strength of the seal ring is increased through multi-layer inlay technology, reducing the deformation of the seal surface, and ensuring the overall deformation of the seal ring is small through symmetrical inlay and uniform stress distribution.
It effectively reduces the deformation of the sealing surface, ensures the uniform distribution of stress at the inlay joint, reduces the amount of seal leakage, and improves operation stability.
Smart Images
Figure CN222732110U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field related to mechanical seals, and in particular to a novel symmetrically mounted high-pressure sealing ring structure. Background Art
[0002] The friction pair of the dynamic and static rings is one of the main sealing points of the mechanical seal. The fitting state of the dynamic and static rings is the main factor affecting the seal leakage and operation stability. One of the main factors affecting the fitting state of the dynamic and static rings is the pressure deformation of the sealing ring. Figure 1 As shown, when the sealing pressure is high, the pressure deformation of the sealing ring will be large, which will seriously affect the fit of the sealing ring friction pair. Utility Model Content
[0003] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a novel symmetrical embedded high-pressure sealing ring structure.
[0004] The utility model adopts the technical scheme to achieve the above purpose: a novel symmetrical embedded high-pressure sealing ring structure, comprising a sealing ring, wherein the inner diameter of the sealing ring is embedded with an inner embedded ring seat, and the outer diameter of the sealing ring is embedded with an outer embedded ring seat.
[0005] The inner embedded ring seat and the outer embedded ring seat are both connected with the sealing ring by interference fit.
[0006] The two axial end faces of the sealing ring are exposed on the inner ring seat, and the exposed dimensions L1 of the two ends are equal; the two axial end faces of the sealing ring are exposed on the outer ring seat, and the exposed dimensions L of the two ends are equal.
[0007] The exposed dimension L>exposed dimension L1.
[0008] The externally mounted ring seat is installed on the shaft sleeve, and an O-ring is installed between the sealing ring and the shaft sleeve.
[0009] The externally mounted ring seat is mounted on the shaft sleeve by means of a screw, and cylindrical pins are evenly distributed between the externally mounted ring seat and the shaft sleeve.
[0010] The externally mounted ring seat is mounted on the shaft sleeve by two evenly distributed screws, and 2-4 cylindrical pins are evenly distributed between the externally mounted ring seat and the shaft sleeve.
[0011] The sealing surface of the sealing ring is fitted with a matching sealing ring, the matching sealing ring is installed on the spring seat, and an O-ring 2 is installed between the matching sealing ring and the spring seat.
[0012] The matching sealing ring is installed on the spring seat by means of screw 2, and cylindrical pins 2 are evenly distributed between the matching sealing ring and the spring seat.
[0013] The paired sealing ring is installed on the spring seat by two evenly distributed screws, and 2-4 cylindrical pins are evenly distributed between the paired sealing ring and the spring seat.
[0014] The utility model is characterized in that: the sealing ring adopts multi-layer inlay, which increases the strength of the sealing ring and reduces the deformation of the sealing surface; the inlaid ring seat and the sealing ring are in a symmetrical state, and the exposed size of the sealing ring is guaranteed to be consistent, which can ensure the uniform distribution of stress at the inlaid joint; the sealing surface is far away from the inlaid joint, and the deformation of the sealing surface is weakened by the stress of the inlaid joint. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 Schematic diagram of pressure deformation of existing sealing ring.
[0016] Figure 2 It is a schematic diagram of the installation of the utility model.
[0017] Figure 3 It is an overall use schematic diagram of the utility model.
[0018] Among them: 1, sealing ring 2, inner embedded ring seat 3, outer embedded ring seat 4, shaft sleeve 5, O-ring 1 6, cylindrical pin 1 7, matching sealing ring 8, spring seat 9, O-ring 2 10, cylindrical pin 2 11, screw 1 12, screw 2. DETAILED DESCRIPTION
[0019] like Figure 2 , 3 As shown, the utility model is a novel symmetrical embedded high-pressure sealing ring structure, including a sealing ring 1, wherein an inner embedded ring seat 2 is embedded at the inner diameter of the sealing ring 1, and an outer embedded ring seat 3 is embedded at the outer diameter of the sealing ring 1. The inner embedded ring seat 2 and the outer embedded ring seat 3 are both connected to the sealing ring 1 by interference fit. The sealing ring 1 adopts a multi-layer embedding technology, that is, embedded ring seats are added at the inner diameter and outer diameter of the sealing ring 1, which can greatly increase the strength of the sealing ring 1 and reduce the deformation of the sealing surface. The sealing ring 1 can adopt various sealing ring materials and is not limited by the strength of the material.
[0020] The two axial end faces of the sealing ring 1 are exposed on the inner mounting ring seat 2, and the exposed dimensions L1 of the two ends are equal; the two axial end faces of the sealing ring 1 are exposed on the outer mounting ring seat 3, and the exposed dimensions L of the two ends are equal, and the exposed dimension L>exposed dimension L1; the inner mounting ring seat 2 and the outer mounting ring seat 3 are both in a symmetrical state with the sealing ring 1, thereby ensuring that the stress at the mounting joint is evenly distributed, and it is easy to reach a stress balance state, ensuring that the overall mounting deformation of the sealing ring 1 is small, and the sealing surface of the sealing ring 1 is far away from the mounting joint, and the deformation of the sealing surface is weakened by the stress of the mounting joint, and the inner diameter and outer diameter of the sealing surface can be flexibly adjusted according to the overall requirements of the mechanical seal.
[0021] The externally mounted ring seat 3 is installed on the shaft sleeve 4 by means of two evenly distributed screws 11, 2-4 cylindrical pins 6 for anti-rotation are evenly distributed between the externally mounted ring seat 3 and the shaft sleeve 4, an O-ring 5 is installed between the sealing ring 1 and the shaft sleeve 4, a matching sealing ring 7 is fitted on the sealing surface of the sealing ring 1, the matching sealing ring 7 is installed on the spring seat 8 by means of two evenly distributed screws 12, an O-ring 9 is installed between the matching sealing ring 7 and the spring seat 8, 2-4 cylindrical pins 10 for anti-rotation are evenly distributed between the matching sealing ring 7 and the spring seat 8, and the number of the cylindrical pins 6 and 10 to be used is selected according to the product size; through the above structure, the sealing ring 1 and the matching sealing ring 7 form a supporting structure.
[0022] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present invention according to the technical scheme and inventive concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A new type of symmetrical embedded high-pressure sealing ring structure, characterized by: It includes a sealing ring, wherein an inner ring seat is embedded at the inner diameter of the sealing ring, and an outer ring seat is embedded at the outer diameter of the sealing ring, and both end surfaces of the sealing ring are exposed at the inner ring seat, and the exposed dimensions L1 at both ends are equal; both end surfaces of the sealing ring are exposed at the outer ring seat, and the exposed dimensions L at both ends are equal, and the exposed dimension L>exposed dimension L1.
2. A novel symmetrical embedded high pressure sealing ring structure as claimed in claim 1, characterized in that: The inner embedded ring seat and the outer embedded ring seat are both connected with the sealing ring by interference fit.
3. A novel symmetrical embedded high pressure sealing ring structure as claimed in claim 1 or 2, characterized in that: The externally mounted ring seat is installed on the shaft sleeve, and an O-ring is installed between the sealing ring and the shaft sleeve.
4. A novel symmetrical embedded high pressure sealing ring structure as claimed in claim 3, characterized in that: The externally mounted ring seat is mounted on the shaft sleeve by means of a screw, and cylindrical pins are evenly distributed between the externally mounted ring seat and the shaft sleeve.
5. A novel symmetrical embedded high pressure sealing ring structure as claimed in claim 4, characterized in that: The externally mounted ring seat is mounted on the shaft sleeve by two evenly distributed screws, and 2-4 cylindrical pins are evenly distributed between the externally mounted ring seat and the shaft sleeve.
6. A novel symmetrical embedded high pressure sealing ring structure as claimed in claim 1 or 2, characterized in that: The sealing surface of the sealing ring is fitted with a matching sealing ring, the matching sealing ring is installed on the spring seat, and an O-ring 2 is installed between the matching sealing ring and the spring seat.
7. A novel symmetrical embedded high pressure sealing ring structure as claimed in claim 6, characterized in that: The matching sealing ring is installed on the spring seat by means of screw 2, and cylindrical pins 2 are evenly distributed between the matching sealing ring and the spring seat.
8. A novel symmetrical embedded high pressure sealing ring structure as claimed in claim 7, characterized in that: The paired sealing ring is installed on the spring seat by two evenly distributed screws, and 2-4 cylindrical pins are evenly distributed between the paired sealing ring and the spring seat.