Mechanical seal moving ring with boss clamping position

Abstract

The utility model discloses a mechanical seal moving ring with a boss clamping position, which comprises a rotor, an installation table top is formed in the rotor, and a clamping groove is arranged on the installation table top. The upper end of the movable ring body is attached to the mounting table top, and a convex block matched with the clamping groove is arranged on the movable ring body; a protruding block installation groove is formed in the upper end face of the movable ring body, a spring is arranged in the protruding block installation groove, and a protruding block is movably connected into the protruding block installation groove through the spring. The clamping groove is formed in the rotor, the protruding block matched with the clamping groove is arranged on the movable ring body, when the pushing force or interference fit of the rotor to the movable ring body fails, synchronous rotation of the rotor and the movable ring body can still be maintained through clamping fit of the protruding block and the clamping groove, and the driving stability is improved; the protruding height of the protruding block on the movable ring body can be adjusted in a self-adaptive mode through the spring, when the distance between the movable ring body and the static ring is increased due to the fact that a static ring compensation mechanism breaks down, the protruding block can achieve automatic compensation distance change, sealing failure is avoided, and the dynamic compensation capacity of the movable ring body is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical seal ring technology, specifically relating to a mechanical seal dynamic ring with a boss-shaped locking position. Background Technology

[0002] A mechanical seal is a device that prevents fluid leakage by having at least one pair of end faces perpendicular to the axis of rotation, which remain in contact and slide relative to each other under the action of fluid pressure, the elastic force (or magnetic force) of the compensation mechanism, and the cooperation of auxiliary seals.

[0003] In mechanical seal devices, the rotating ring and rotor need to rotate synchronously. Traditional technologies often rely on thrust or interference fit to achieve this synchronization. However, over long-term operation, the thrust of the rotor on the rotating ring tends to weaken, and the interference fit may fail due to wear, leading to slippage between the rotating ring and the rotor, thus affecting their synchronous rotation. Furthermore, when the elastic compensation mechanism of the stationary ring fails, the gap between the rotating and stationary rings increases, and traditional structures cannot adaptively compensate, easily causing leakage or abnormal wear. Therefore, there is an urgent need for a rotating ring structure that combines driving stability and dynamic compensation capabilities. Utility Model Content

[0004] In order to solve the above-mentioned problems in the existing technology, the purpose of this utility model is to provide a mechanical seal rotating ring with a boss locking position.

[0005] The technical solution adopted in this utility model includes:

[0006] The rotor has a mounting platform formed therein, and the mounting platform has a slot.

[0007] The moving ring body has its upper end in contact with the mounting platform and has a protrusion that matches the slot. The upper end face of the moving ring body has a protrusion mounting groove, and a spring is provided in the protrusion mounting groove. The protrusion is movably connected in the protrusion mounting groove through the spring.

[0008] As a preferred embodiment of this utility model, the card slots are provided in a plurality of them, and the plurality of card slots are distributed in a circumferential array along the end face of the mounting platform, and each of the plurality of card slots corresponds to one of the protrusions.

[0009] As a preferred embodiment of this utility model, the rotor is internally connected to a rotating shaft, and a spline groove is provided on the mounting platform, the rotating shaft being connected to the rotor spline through the spline groove.

[0010] As a preferred embodiment of this invention, one end of the spring is fixedly connected to the bottom of the protrusion mounting groove, and the other end is fixedly connected to the protrusion.

[0011] As a preferred embodiment of this utility model, multiple springs are provided, and the multiple springs are equidistantly distributed along the arc length direction of the protrusion mounting groove.

[0012] As a preferred embodiment of this utility model, a limiting part is formed at the top of the protrusion mounting groove, and a limiting plate is fixedly provided at the bottom of the protrusion.

[0013] As a preferred embodiment of this invention, the embedment depth of the bottom of the protrusion in the protrusion mounting groove is greater than half the depth of the protrusion mounting groove.

[0014] As a preferred embodiment of this utility model, a retaining ring mounting groove is provided on the circumferential surface of the moving ring body, and a moving ring sealing ring is installed in the retaining ring mounting groove.

[0015] The beneficial effects of this utility model are as follows:

[0016] This utility model is a mechanical seal rotating ring with a boss-shaped locking position.

[0017] By creating slots on the rotor and protrusions on the rotating ring that match the slots, the rotor and rotating ring can still rotate synchronously when the rotor's pushing force on the rotating ring or the interference fit fails, thanks to the engaging engagement of the protrusions and slots, thus improving drive stability. A spring allows the protrusion height on the rotating ring to be adaptively adjusted. When a malfunction in the stationary ring compensation mechanism causes an increase in the distance between the rotating and stationary rings, the protrusions can automatically compensate for the distance change, preventing seal failure and achieving dynamic compensation capability of the rotating ring. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the moving ring body of this utility model;

[0021] Figure 3 This is a cross-sectional structural schematic diagram of the moving ring body of this utility model;

[0022] Figure 4 This is a utility model Figure 3 A magnified structural diagram at point A in the diagram.

[0023] In the diagram: 1. Rotor; 2. Moving ring body; 3. Moving ring seal; 11. Mounting platform; 12. Slot; 13. Spline groove; 21. Protrusion; 22. Retaining ring mounting groove; 23. Protrusion mounting groove; 24. Spring; 25. Limiting part; 26. Limiting plate. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] The following is combined with Figure 1-4 This invention describes a specific embodiment of a mechanical seal rotating ring with a boss-shaped locking position, comprising:

[0027] Rotor 1, which has a mounting platform 11 formed therein, and the mounting platform 11 has a slot 12;

[0028] The moving ring 2 has its upper end fitted to the mounting platform 11, and has a protrusion 21 adapted to the slot 12. A protrusion mounting groove 23 is formed on the upper surface of the moving ring 2, and a spring 24 is provided within the groove 23. The protrusion 21 is movably connected to the groove 23 via the spring 24. By forming a slot 12 on the rotor 1 and providing a protrusion 21 adapted to the slot 12 on the moving ring 2, in the connection between the moving ring 2 and the rotor 1, existing methods for driving the rotor 1 and the moving ring 2 to rotate synchronously mostly involve applying a pushing force to one end of the moving ring 2 using the rotor 1, or using an interference fit between the rotor 1 and the moving ring 2 to achieve synchronous rotation. This application utilizes the pushing force applied by the rotor 1 to the moving ring 2 and an interference fit to drive the rotation. While rotating, the engagement between the protrusion 21 and the slot 12 improves the stability of the connection between the rotor 1 and the moving ring 2. This prevents the rotor 1 from losing its pushing force or the interference fit from failing, ensuring synchronous rotation between the rotor 1 and the moving ring 2. Furthermore, the movable connection of the protrusion 21 on the moving ring 2 allows the protrusion height of the protrusion 21 on the moving ring 2 to be adjusted by the elasticity of the spring 24. When the elastic compensation mechanism on the stationary ring malfunctions, the gap between the moving ring 2 and the stationary ring increases. The protrusion 21, under the action of the spring 24, can compensate for this gap. The spring 24 allows the protrusion 21 to adaptively adjust its protrusion height. When the stationary ring compensation mechanism malfunctions, causing the gap between the moving ring 2 and the stationary ring to increase, the protrusion 21 automatically compensates for the gap change, preventing seal failure.

[0029] Please refer to Figure 2 As shown, there are multiple slots 12, which are arranged in a circumferential array along the end face of the mounting platform 11. Each slot 12 corresponds to a protrusion 21. The corresponding distribution of the multiple slots 12 and protrusions 21 can enhance the uniformity of the synchronous rotation of the rotor 1 driving the moving ring 2.

[0030] Please refer to Figure 1 As shown, a rotating shaft is connected inside the rotor 1, and a spline groove 13 is provided on the mounting platform 11. The rotating shaft is splinedly connected to the rotor 1 through the spline groove 13. By providing the spline groove 13 on the mounting platform 11 and connecting the rotating shaft to the rotor 1 through the spline groove 13, the rotating shaft is directly driven to the moving ring 2, thereby enabling the rotor 1 and the moving ring 2 to rotate synchronously under the driving action of the rotating shaft.

[0031] Please refer to Figures 3-4 As shown, one end of the spring 24 is fixedly connected to the bottom of the protrusion mounting groove 23, and the other end is fixedly connected to the protrusion 21. The spring 24 can adaptively adjust the protrusion height of the protrusion 21 in the protrusion mounting groove 23 to adapt to the change in the distance between the moving ring body 2 and the stationary ring caused by the failure of the stationary ring compensation mechanism, and ensure the sealing between the moving ring and the stationary ring.

[0032] Please refer to Figure 3 As shown, multiple springs 24 are provided, and the multiple springs 24 are equidistantly distributed along the arc length direction of the protrusion mounting groove 23 to ensure that the protrusion 21 is subjected to balanced force.

[0033] Please refer to Figure 4 As shown, a limiting part is formed at the top of the protrusion mounting groove 23, and a limiting plate is fixedly provided at the bottom of the protrusion 21. The limiting plate and the limiting part are used to prevent the protrusion 21 from sliding off the protrusion mounting groove 23.

[0034] Please refer to Figure 4 As shown, the embedding depth of the bottom of the protrusion 21 in the protrusion mounting groove 23 is greater than half the depth of the protrusion mounting groove 23, ensuring the embedding height of the bottom of the protrusion 21 in the protrusion mounting groove 23, thereby ensuring the stability of the movement of the protrusion 21.

[0035] Please refer to Figure 3 As shown, a retaining ring mounting groove 22 is provided on the circumferential surface of the moving ring body 2, and a moving ring sealing ring 3 is installed in the retaining ring mounting groove 22. The moving ring sealing ring 3 is used for sealing between the moving ring and the rotor 1.

[0036] Working principle of this utility model:

[0037] The rotating ring 2 is installed into the mounting platform 11, and one end of the rotating ring 2 is attached to the mounting platform 11. At the same time, the protrusion 21 on the rotating ring 2 is engaged in the positioning slot 12. Between the rotating ring 2, the retaining ring mounting slot 22 is installed into the retaining ring mounting slot 22 to achieve the sealing between the rotor 1 and the rotating ring 2.

[0038] After the rotating ring 2 is installed, a rotating shaft is inserted into the rotor 1 and the rotating ring 2, so that the mounting platform 11 is connected to the rotating spline through the spline groove 13 opened on it, so as to realize the synchronous rotation between the rotating shaft, the rotor 1 and the rotating ring 2. While the rotating ring 2 is rotating, its other end face is in contact with the stationary ring to achieve the sealing of the conveying fluid.

[0039] When the elastic compensation mechanism connected to the stationary ring malfunctions, causing a gap to appear between the stationary ring and the moving ring body 2, the moving ring body 2 can automatically compensate for the gap under the action of the protrusion 21 and the spring 24 because the bottom of the protrusion 21 is connected to the protrusion 21 mounting base through the spring 24, thus avoiding seal failure.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A mechanical seal rotating ring with a boss-shaped locking position, characterized in that, include: The rotor (1) has a mounting platform (11) formed therein, and the mounting platform (11) has a slot (12) formed thereon; The moving ring (2) has its upper end in contact with the mounting platform (11) and has a protrusion (21) that is compatible with the slot (12). The upper end face of the moving ring (2) has a protrusion mounting groove (23) and a spring (24) is provided in the protrusion mounting groove (23). The protrusion (21) is movably connected in the protrusion mounting groove (23) through the spring (24).

2. The mechanical seal rotating ring with a boss-shaped locking position according to claim 1, characterized in that: The slots (12) are provided in multiple ways, and the multiple slots (12) are distributed in a circumferential array along the end face of the mounting platform (11). Each of the multiple slots (12) corresponds to one of the protrusions (21).

3. A mechanical seal rotating ring with a boss-shaped locking position according to claim 2, characterized in that: The rotor (1) is internally connected to a rotating shaft, and a spline groove (13) is provided on the mounting platform (11). The rotating shaft is splined to the rotor (1) through the spline groove (13).

4. A mechanical seal rotating ring with a boss-shaped locking position according to claim 1, characterized in that: One end of the spring (24) is fixedly connected to the bottom of the protrusion mounting groove (23), and the other end is fixedly connected to the protrusion (21).

5. A mechanical seal rotating ring with a boss-shaped locking position according to claim 4, characterized in that: The springs (24) are provided in multiples, and the multiple springs (24) are equidistantly distributed along the arc length direction of the protrusion mounting groove (23).

6. A mechanical seal rotating ring with a boss-shaped locking position according to claim 1, characterized in that: The top of the protrusion mounting groove (23) is formed with a limiting part, and the bottom of the protrusion (21) is fixedly provided with a limiting plate.

7. A mechanical seal rotating ring with a boss-shaped locking position according to claim 6, characterized in that: The bottom of the protrusion (21) is embedded in the protrusion mounting groove (23) to a depth greater than half the depth of the protrusion mounting groove (23).

8. A mechanical seal rotating ring with a boss-shaped locking position according to claim 7, characterized in that: The circumferential surface of the moving ring body (2) is provided with a retaining ring mounting groove (22), and a moving ring sealing ring (3) is installed in the retaining ring mounting groove (22).

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