Graphite ring sealing structure for Q-type rotary joint
By adopting graphite ring sealing structure and oil-free bearing system in the rotary joint, the problem of degradation of sealing performance under harsh conditions is solved, and efficient sealing and reliability are improved.
Patent Information
- Application Number
- CN202420003268.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-02
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-01-02
AI Technical Summary
Existing rotary joints have degraded sealing performance under harsh operating conditions, resulting in leakage and damage to mechanical components, increasing operating costs and maintenance frequency.
A graphite ring sealing structure is adopted, combining the main oil-free bearing, the secondary oil-free bearing, the spring and the convex ball structure to form a tight sealing system to adapt to the angle changes of the rotary joint.
It realizes efficient sealing of rotary joints, prevents damage to connecting parts and mechanical components, reduces maintenance and downtime, and improves the reliability and operational efficiency of rotary joints.
Smart Images
Figure CN222479443U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rotary joints, in particular to a graphite ring sealing structure for a Q-type rotary joint. Background Art
[0002] A swivel joint is a mechanical connection device that allows the connected parts to rotate within a certain range without affecting the movement or connection of other parts. The Q-type swivel joint allows the pipe to rotate within a certain angle, and the graphite ring sealing structure can adapt to angular rotation within a certain range and maintain sealing performance, which is important for application scenarios that require flexible rotation.
[0003] In some existing technologies, harsh working conditions, such as high temperature, high pressure or high speed, easily exceed the limits of joint design, resulting in reduced sealing performance and difficulty in sealing. In some cases, leakage may cause damage to connecting parts and mechanical elements. For example, in fluid transmission, leakage can easily cause damage to bearings or other components. Poor sealing performance requires more frequent maintenance and downtime to repair or replace damaged parts, which easily increases operating costs and reduces the reliability of rotary joints. Therefore, in view of the above shortcomings, a graphite ring sealing structure for Q-type rotary joints is proposed. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a graphite ring sealing structure for a Q-type rotary joint, aiming to improve the problem in the prior art that it is difficult to seal the rotary joint, resulting in damage to connecting parts and mechanical elements.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A graphite ring sealing structure for a Q-type rotary joint comprises a rotor, wherein the outside of the rotor is rotatably connected to a stator, a bottom cover is provided on the right side of the stator, a graphite ring is fixedly connected to the left side of the bottom cover, a main oil-free bearing is fixedly connected to the outside of the rotor, a secondary oil-free bearing is fixedly connected to the inner wall of the bottom cover, a rotor connector is fixedly connected to the right side of the outside of the rotor, a spring is provided on the left inner wall of the stator, a hole card is provided inside the bottom cover, a plurality of bolts are threadedly connected to the inside of the bottom cover, a rotor convex ball is slidably connected to the outside of the rotor, a bottom cover plane is fixedly connected to the left side of the bottom cover plane, and a graphite ring convex ball is fixedly connected to the left side of the bottom cover plane.
[0007] Furthermore, the interior of the bottom cover is fixedly connected to the exterior of the rotor.
[0008] Furthermore, the outer portion of the auxiliary oil-free bearing is fixedly connected to the inner wall of the bottom cover.
[0009] Furthermore, one end of the spring is fixedly connected to the left inner wall of the stator, and the other end of the spring is in contact with the left side of the rotor.
[0010] Furthermore, the right side of the rotor convex ball contacts the left side of the graphite ring convex ball.
[0011] Furthermore, external threads of the plurality of bolts are connected to the right side of the stator.
[0012] Furthermore, the outer portion of the main oil-free bearing is slidably connected to the inner wall of the stator, and the outer portion of the graphite ring is engaged with the inner wall of the stator.
[0013] The utility model has the following beneficial effects:
[0014] In the utility model, the sealing of the rotary joint is achieved through the mutual cooperation of the graphite ring, the main oil-free bearing, the auxiliary oil-free bearing, the rotor connecting piece, the spring, the rotor convex ball, the graphite ring convex ball and other structures, thereby preventing the damage of the connecting parts and mechanical elements, reducing maintenance and downtime, reducing operating costs, and improving the reliability of the rotary joint. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A three-dimensional diagram of a graphite ring sealing structure for a Q-type rotary joint proposed by the utility model;
[0016] Figure 2 A schematic diagram of the rotor structure of a graphite ring sealing structure for a Q-type rotary joint proposed in the utility model;
[0017] Legend:
[0018] 1. Rotor; 2. Stator; 3. Bottom cover; 4. Graphite ring; 5. Main oil-free bearing; 6. Secondary oil-free bearing; 7. Rotor connector; 8. Spring; 9. Hole card; 10. Bolt; 11. Rotor convex ball; 12. Graphite ring convex ball; 13. Bottom cover plane. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] Reference Figure 1-2The utility model provides an embodiment: a graphite ring sealing structure for a Q-type rotary joint, comprising a rotor 1, the outside of the rotor 1 is rotatably connected to a stator 2, the stator 2 is located outside the rotor 1, and together with the rotor 1 forms the main structure of the rotary joint, a bottom cover 3 is provided on the right side of the stator 2, a graphite ring 4 is fixedly connected to the left side of the bottom cover 3, and the graphite ring 4 is installed on the inner wall of the bottom cover 3 as an annular seal for providing sealing performance, a main oil-free bearing 5 is fixedly connected to the outside of the rotor 1, installed on the outside of the rotor 1, providing support for the rotor 1, and is also an oil-free bearing to reduce friction, a secondary oil-free bearing 6 is fixedly connected to the inner wall of the bottom cover 3, and the secondary oil-free bearing 6 is installed on the inner wall of the bottom cover 3 to provide additional support for the rotor 1, and is also an oil-free bearing, a rotor connector 7 is fixedly connected to the right side of the outside of the rotor 1, a spring 8 is provided on the left inner wall of the stator 2, and the spring 8 is used to provide pressure to help maintain the sealing performance, and the inner opening of the bottom cover 3 A hole card 9 is provided, and the hole card 9 is used to fix and connect other structures. The inside of the bottom cover 3 is threadedly connected with multiple bolts 10. The bolts 10 are threadedly connected to the bottom cover 3 and other components to ensure the firmness of the entire structure. The outside of the rotor 1 is slidably connected with a rotor convex ball 11, which is installed on the outside of the rotor 1 for sliding connection with other parts during rotational motion. The rotor 1 is a core component of the rotary joint, and the rotor convex ball 11 can be fixedly connected to its outer surface for sliding connection with other parts. The left side of the bottom cover 3 is fixedly connected with a bottom cover plane 13, and the left side of the bottom cover plane 13 is fixedly connected with a graphite ring convex ball 12. The graphite ring convex ball 12 is a convex ball-shaped structure located on the left side of the bottom cover plane 13, which is used to provide additional sealing performance, realize the sealing of the rotary joint, and then prevent damage to the connecting parts and mechanical elements, reduce maintenance and downtime, reduce operating costs, and improve the reliability of the rotary joint.
[0021] The inside of the bottom cover 3 is fixedly connected to the outside of the rotor 1, and the outside of the auxiliary oil-free bearing 6 is fixedly connected to the inner wall of the bottom cover 3. The auxiliary oil-free bearing 6 provides support for the rotor. One end of the spring 8 is fixedly connected to the left inner wall of the stator 2. The spring 8 is arranged to provide a specific pressure between the rotor 1 and the stator 2 to maintain the sealing performance of the graphite ring 4. The other end of the spring 8 contacts the left side of the rotor 1, and the right side of the rotor convex ball 11 contacts the left side of the graphite ring convex ball 12. A sealing structure can be provided to make the contact between the rotor 1 and the graphite ring 4 closer, which is conducive to improving the sealing effect. The external threads of multiple bolts 10 are connected to the right side of the stator 2. The bolts 10 enhance the stability of the overall structure. The external sliding connection of the main oil-free bearing 5 is connected to the inner wall of the stator 2. The main oil-free bearing 5 provides support for the rotor 1. The outside of the graphite ring 4 is engaged with the inner wall of the stator 2 to ensure the sealing effect.
[0022] Working principle: When the rotary joint is put into operation, the rotor 1 rotates through the rotary connection to form rotary power. The main oil-free bearing 5 and the auxiliary oil-free bearing 6 provide support and balance for the rotor 1 to ensure its stable rotation. At the same time, the graphite ring 4 sealing structure is between the bottom cover 3 to prevent liquid or gas leakage. The spring 8 presses the graphite ring 4 to maintain the sealing performance, thereby achieving the sealing of the rotary joint, and then preventing damage to the connecting parts and mechanical elements, reducing maintenance and downtime, reducing operating costs, and improving the reliability of the rotary joint.
[0023] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A graphite ring sealing structure for a Q-type rotary joint, comprising a rotor (1), characterized in that: The outside of the rotor (1) is rotatably connected to the stator (2), a bottom cover (3) is provided on the right side of the stator (2), a graphite ring (4) is fixedly connected to the left side of the bottom cover (3), a main oil-free bearing (5) is fixedly connected to the outside of the rotor (1), a secondary oil-free bearing (6) is fixedly connected to the inner wall of the bottom cover (3), a rotor connecting piece (7) is fixedly connected to the right side of the outside of the rotor (1), a spring (8) is provided on the left inner wall of the stator (2), a hole card (9) is provided inside the bottom cover (3), a plurality of bolts (10) are threadedly connected inside the bottom cover (3), a rotor convex ball (11) is slidably connected to the outside of the rotor (1), a bottom cover plane (13) is fixedly connected to the left side of the bottom cover plane (13), and a graphite ring convex ball (12) is fixedly connected to the left side of the bottom cover plane (13).
2. The graphite ring sealing structure for a Q-type rotary joint according to claim 1, characterized in that: The interior of the bottom cover (3) is fixedly connected to the exterior of the rotor (1).
3. The graphite ring sealing structure for a Q-type rotary joint according to claim 1, characterized in that: The exterior of the auxiliary oil-free bearing (6) is fixedly connected to the inner wall of the bottom cover (3).
4. The graphite ring sealing structure for a Q-type rotary joint according to claim 1, characterized in that: One end of the spring (8) is fixedly connected to the left inner wall of the stator (2), and the other end of the spring (8) is in contact with the left side of the rotor (1).
5. The graphite ring sealing structure for a Q-type rotary joint according to claim 1, characterized in that: The right side of the rotor convex ball (11) contacts the left side of the graphite ring convex ball (12).
6. The graphite ring sealing structure for a Q-type rotary joint according to claim 1, characterized in that: The external threads of the plurality of bolts (10) are connected to the right side of the stator (2).
7. The graphite ring sealing structure for a Q-type rotary joint according to claim 1, characterized in that: The outside of the main oil-free bearing (5) is slidably connected to the inner wall of the stator (2), and the outside of the graphite ring (4) is engaged with the inner wall of the stator (2).