Moving ring assembly capable of preventing spring from bending

Abstract

The utility model discloses a moving ring assembly for preventing spring bending, which relates to the field of mechanical seal, and comprises a moving ring and a spring seat, a plurality of springs which are annularly and uniformly arranged are arranged between the moving ring and the spring seat, one end of each spring is abutted against the moving ring, the other end of each spring is abutted against the spring seat, and the moving ring and the spring seat are arranged on the moving ring. A first positioning piece matched with the spring in a positioning mode is arranged on the front face of the spring seat, a second positioning piece matched with the spring in a positioning mode is arranged on the back face of the movable ring, and the second positioning piece corresponds to the first positioning piece in position. The positioning pieces are arranged at the corresponding positions of the movable ring and the spring seat at the same time, so that the two ends of the spring are positioned, and the problem that the sealing effect is affected by deformation of the spring due to the fact that the spring is punched to be deviated when flushing pressure is too high is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical seals, and in particular to a dynamic ring assembly for preventing spring bending. Background Technology

[0002] The primary function of the spring in the rotating ring assembly of a mechanical seal is to provide preload, cushioning, and compensation. In existing rotating ring assemblies, spring holes are typically only present in the spring seat, such as... Figure 6 As shown, its disadvantage is that when the flushing pressure of the medium is too high, it is easy to push the spring off course, causing the spring to deform, which in turn affects the sealing spring force, resulting in uneven force on the sealing end face and causing sealing leakage. Utility Model Content

[0003] The purpose of this invention is to provide a dynamic ring assembly that prevents spring bending, thereby solving the problem mentioned in the background art where only a spring hole is opened on the spring seat, which can easily cause the spring to deviate when the medium flushing pressure is too high, resulting in spring deformation and affecting the sealing spring force.

[0004] The present invention adopts the following technical solution:

[0005] This utility model discloses a rotating ring assembly for preventing spring bending, comprising a rotating ring and a spring seat. A plurality of springs are arranged in a ring and uniformly between the rotating ring and the spring seat. One end of each spring abuts against the rotating ring, and the other end of each spring abuts against the spring seat. A first positioning element is provided on the front side of the spring seat to position and cooperate with the spring, and a second positioning element is provided on the back side of the rotating ring to position and cooperate with the spring, and the second positioning element corresponds to the position of the first positioning element.

[0006] Furthermore, both the first positioning member and the second positioning member have a groove structure, with one end of the spring embedded in the first positioning member and the other end of the spring embedded in the second positioning member.

[0007] Furthermore, the first positioning element is a groove structure, the second positioning element is a protrusion structure, one end of the spring is embedded in the first positioning element, and the other end of the spring is sleeved on the second positioning element.

[0008] Furthermore, the first positioning element is a protruding structure, the second positioning element is a groove structure, one end of the spring is sleeved on the first positioning element, and the other end of the spring is embedded in the second positioning element.

[0009] Furthermore, both the first positioning member and the second positioning member are protruding structures, one end of the spring is sleeved on the first positioning member, and the other end of the spring is sleeved on the second positioning member.

[0010] Furthermore, the moving ring is provided with a plurality of second pin holes arranged in a ring evenly, and the spring seat is provided with a plurality of first pin holes arranged in a ring evenly. The second pin holes are positioned to cooperate with the first pin holes. Anti-rotation pins are provided in the second pin holes and the first pin holes. The anti-rotation pins are slidably engaged with the first pin holes and are threadedly connected to the second pin holes.

[0011] Furthermore, the anti-rotation pins and the springs are arranged at intervals.

[0012] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0013] This invention employs positioning elements at corresponding positions on both the moving ring and the spring seat, ensuring that both ends of the spring are positioned. This effectively prevents the spring from being misaligned due to excessive flushing pressure, which could lead to spring deformation and affect the sealing effect. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the rotating ring assembly structure for preventing spring bending according to Embodiment 1 of this utility model;

[0016] Figure 2 This is a left view of the rotating ring assembly for preventing spring bending according to Embodiment 1 of this utility model;

[0017] Figure 3 This is a schematic diagram of the moving ring assembly structure for preventing spring bending according to Embodiment 2 of this utility model;

[0018] Figure 4 This is a schematic diagram of the moving ring assembly structure for preventing spring bending according to Embodiment 3 of this utility model;

[0019] Figure 5 This is a schematic diagram of the moving ring assembly structure for preventing spring bending according to Embodiment 4 of this utility model;

[0020] Figure 6 This is a schematic diagram of the dynamic ring component structure in the background technology.

[0021] Explanation of reference numerals in the attached drawings: 1. Moving ring; 1-1. Second positioning element; 1-2. Second pin hole; 2. Spring seat; 2-1. First positioning element; 2-2. First pin hole; 3. Spring; 4. Anti-rotation pin. Detailed Implementation

[0022] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] Example 1

[0024] like Figure 1 and Figure 2 As shown, this embodiment discloses a rotating ring assembly to prevent spring bending, including a rotating ring 1 and a spring seat 2. A plurality of springs 3 are arranged in a ring-like uniform pattern between the rotating ring 1 and the spring seat 2. One end of each spring 3 abuts against the rotating ring 1, and the other end abuts against the spring seat 2. A first positioning element 2-1, which positions and cooperates with the spring 3, is arranged in a ring-like uniform pattern on the front side of the spring seat 2. A second positioning element 1-1, which positions and cooperates with the spring 3, is arranged in a ring-like uniform pattern on the back side of the rotating ring 1, and the second positioning element 1-1 corresponds to the first positioning element 2-1 in position. The ring-like uniform distribution of the first and second positioning elements 2-1 ensures uniform force distribution on the contact surfaces.

[0025] In this embodiment, both the first positioning member 2-1 and the second positioning member 1-1 are groove structures. One end of the spring 3 is embedded in the first positioning member 2-1, and the other end of the spring 3 is embedded in the second positioning member 1-1.

[0026] In this embodiment, the anti-rotation pins 4 and springs 3 are arranged alternately. Specifically, the moving ring 1 has a plurality of second pin holes 1-2 arranged in a ring, and the spring seat 2 has a plurality of first pin holes 2-2 arranged in a ring. The second pin holes 1-2 and the first pin holes 2-2 are positioned correspondingly and fitted together. The second positioning member 1-1 and the second pin holes 1-2 are arranged alternately, and the first positioning member 2-1 and the first pin holes 2-2 are arranged alternately. Anti-rotation pins 4 are provided in the second pin holes 1-2 and the first pin holes 2-2. The anti-rotation pins 4 are slidably fitted with the first pin holes 2-2, and the anti-rotation pins 4 are threadedly connected to the second pin holes 1-2. Specifically, the anti-rotation pin 4 is provided with threads, and the second pin hole 1-2 is provided with threads that cooperate with the anti-rotation pin 4. The diameter of the first pin hole 2-2 is slightly larger than the diameter of the anti-rotation pin 4. After passing the anti-rotation pin 4 through the first pin hole 2-2, it can be screwed into the second pin hole 1-2 to prevent the moving ring 1 and the spring seat 2 from rotating relative to each other.

[0027] The working principle of this utility model is as follows:

[0028] First, the two ends of the spring 3 are respectively embedded in the first positioning member 2-1 and the second positioning member 1-1. Even when the medium flushing pressure is too high, the medium will only flush the middle part of the spring 3 and will not push the spring 3 to the side, thus ensuring that the sealing end face is subjected to uniform force.

[0029] Example 2

[0030] like Figure 3As shown, in this embodiment, the first positioning member 2-1 has a groove structure, the second positioning member 1-1 has a protruding structure, one end of the spring 3 is embedded in the first positioning member 2-1, and the other end of the spring 3 is sleeved on the second positioning member 1-1. The remaining technical features, working principles, and connection relationships in this embodiment are the same as in Embodiment 1, and will not be repeated here.

[0031] Example 3

[0032] like Figure 4 As shown, in this embodiment, the first positioning member 2-1 is a protruding structure, the second positioning member 1-1 is a groove structure, one end of the spring 3 is sleeved on the first positioning member 2-1, and the other end of the spring 3 is embedded in the second positioning member 1-1. The remaining technical features, working principles, and connection relationships in this embodiment are the same as in Embodiment 1, and will not be repeated here.

[0033] Example 4

[0034] Both the first positioning element 2-1 and the second positioning element 1-1 are protruding structures. One end of the spring 3 is sleeved on the first positioning element 2-1, and the other end of the spring 3 is sleeved on the second positioning element 1-1. The remaining technical features, working principles, and connection relationships in this embodiment are the same as in Embodiment 1, and will not be repeated here.

[0035] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A rotating ring assembly for preventing spring bending, comprising a rotating ring (1) and a spring seat (2), wherein a plurality of springs (3) are arranged in a ring uniformly between the rotating ring (1) and the spring seat (2), one end of each spring (3) abuts against the rotating ring (1), and the other end of each spring (3) abuts against the spring seat (2), characterized in that: The front of the spring seat (2) is provided with a first positioning member (2-1) that positions and cooperates with the spring (3), and the back of the moving ring (1) is provided with a second positioning member (1-1) that positions and cooperates with the spring (3), and the second positioning member (1-1) corresponds to the position of the first positioning member (2-1).

2. The rotating ring assembly for preventing spring bending according to claim 1, characterized in that: Both the first positioning member (2-1) and the second positioning member (1-1) have a groove structure. One end of the spring (3) is embedded in the first positioning member (2-1), and the other end of the spring (3) is embedded in the second positioning member (1-1).

3. The rotating ring assembly for preventing spring bending according to claim 1, characterized in that: The first positioning member (2-1) has a groove structure, the second positioning member (1-1) has a protrusion structure, one end of the spring (3) is embedded in the first positioning member (2-1), and the other end of the spring (3) is sleeved on the second positioning member (1-1).

4. The rotating ring assembly for preventing spring bending according to claim 1, characterized in that: The first positioning member (2-1) is a protruding structure, the second positioning member (1-1) is a groove structure, one end of the spring (3) is sleeved on the first positioning member (2-1), and the other end of the spring (3) is embedded in the second positioning member (1-1).

5. The rotating ring assembly for preventing spring bending according to claim 1, characterized in that: Both the first positioning member (2-1) and the second positioning member (1-1) are protruding structures. One end of the spring (3) is sleeved on the first positioning member (2-1), and the other end of the spring (3) is sleeved on the second positioning member (1-1).

6. The rotating ring assembly for preventing spring bending according to claim 1, characterized in that: The moving ring (1) is provided with a plurality of second pin holes (1-2) arranged in a ring evenly, and the spring seat (2) is provided with a plurality of first pin holes (2-2) arranged in a ring evenly. The second pin holes (1-2) and the first pin holes (2-2) are correspondingly matched. Anti-rotation pins (4) are provided in the second pin holes (1-2) and the first pin holes (2-2). The anti-rotation pins (4) are slidably matched with the first pin holes (2-2). The anti-rotation pins (4) are threadedly connected to the second pin holes (1-2).

7. The rotating ring assembly for preventing spring bending according to claim 6, characterized in that: The anti-rotation pin (4) and the spring (3) are arranged at intervals.

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