Sealing ring for shafts

Abstract

The utility model discloses a sealing ring for shafts, which comprises a static ring, one end of the static ring is provided with a moving ring, the static ring is provided with a plurality of groups of grooves, the plurality of groups of grooves are internally in clearance fit with first cylinders, and springs are connected between the plurality of groups of first cylinders and the grooves. When the movable ring rotates, if the movable ring vibrates along with the shaft body, the first columns in the multiple sets of grooves in the static ring can make contact with the movable ring in advance by means of the elastic force of the corresponding springs, vibration of the movable ring is buffered and restrained, and therefore the movable ring and the static ring can be prevented from colliding with each other, mutual abrasion of the movable ring and the static ring is avoided, and the sealing effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sealing related technical field, especially a sealing ring for shafts. BACKGROUND

[0002] The shaft sealing is a technical measure for preventing liquid or gas leakage between the shaft and other parts of the equipment, which is usually realized by the sealing device installed on the shaft, but if the shaft body vibrates during driving the dynamic ring to rotate, the dynamic ring will collide with the static ring, which will cause mutual abrasion and affect the sealing effect. SUMMARY

[0003] The utility model discloses a sealing ring for shafts to solve the problems in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A sealing ring for shafts, comprising a static ring, the static ring is provided with a dynamic ring at one end, a plurality of grooves are formed in the static ring, a first cylinder is clearance-fitted in each of the plurality of grooves, and a spring is connected between the first cylinder and the groove.

[0006] Preferably, a plurality of through holes are formed in the dynamic ring, a second cylinder is clearance-fitted in each of the plurality of through holes, a threaded ring is threadedly connected to the dynamic ring, a first chamfer is formed at one end of the threaded ring, and the first chamfer is in contact with one end of the second cylinder.

[0007] Preferably, a first protrusion is connected to each of the first cylinders near the dynamic ring, and the first protrusions are made of rubber.

[0008] Preferably, a second chamfer is formed at one end of the dynamic ring.

[0009] Preferably, the contact between the second cylinder and the first chamfer is designed in a semispherical shape.

[0010] Preferably, a plurality of protrusions are connected to the threaded ring.

[0011] Preferably, a second protrusion is connected to one end of each of the second cylinders, and the second protrusions are made of rubber.

[0012] The utility model has the advantages of:

[0013] 1. Through the coordination between the stationary ring, dynamic ring, grooves, first cylinder, first protrusion, and spring, when the dynamic ring rotates and vibrates along with the shaft, the first cylinders in the multiple grooves of the static ring can, with the help of the elastic force of the corresponding springs, make early contact with the dynamic ring, thereby buffering and suppressing the vibration of the dynamic ring. This can prevent the dynamic and static rings from colliding and further preventing mutual wear between the two, thereby ensuring a good sealing effect.

[0014] 2. By coordinating the threaded ring, the first chamfer, the second cylinder and the through hole, and utilizing the rotation of the threaded ring at the dynamic ring, the first chamfer of the threaded ring can come into contact with multiple groups of second cylinders, and the multiple groups of second cylinders can be simultaneously moved into the inner wall of the dynamic ring, so that the dynamic ring can be fixedly connected to the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a sealing ring for shafts proposed in the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the structure of the middle static ring;

[0017] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure;

[0018] Figure 4 for Figure 3 Schematic diagram of the structure of the static ring, dynamic ring and groove;

[0019] Figure 5 for Figure 3 Schematic diagram of the structure of the through hole, the second cylinder and the threaded ring.

[0020] In the figure: 1, static ring; 2, dynamic ring; 3, groove; 4, first cylinder; 5, first protrusion; 6, spring; 7, through hole; 8, second cylinder; 9, threaded ring; 10, first chamfer; 11, second protrusion; 12, bump; 13, second chamfer. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Example 1, reference Figures 1 to 5A kind of sealing ring for shaft, including static ring 1, static ring 1 one end is equipped with dynamic ring 2, multiple sets of recess 3 are opened at static ring 1, multiple sets of recess 3 are all gap fit with first cylinder 4, first cylinder 4 can be active in corresponding recess 3, multiple sets of first cylinder 4 and recess 3 are all connected with spring 6, spring 6 is used to buffer and inhibit the vibration of dynamic ring 2 with first cylinder 4, so as to avoid the collision of dynamic ring 2 and static ring 1.

[0023] In the embodiment, multiple sets of through holes 7 are opened at dynamic ring 2, multiple sets of through holes 7 are all gap fit with second cylinder 8, second cylinder 8 can be active at through hole 7, threaded ring 9 is threadedly connected at dynamic ring 2, first chamfer 10 is opened at one end of threaded ring 9, first chamfer 10 is in contact with one end of multiple sets of second cylinder 8, multiple sets of first cylinder 4 are all connected with first lug 5 close to dynamic ring 2, multiple sets of first lug 5 are all of rubber material, so as to increase the buffering effect, second chamfer 13 is opened at one end of dynamic ring 2, the contact between multiple sets of second cylinder 8 and first chamfer 10 is all hemispherical design, so that when threaded ring 9 is rotated and moves horizontally, it can stably drive multiple sets of second cylinder 8 to move synchronously towards the inner wall of dynamic ring 2, multiple sets of convex points 12 are connected at threaded ring 9, multiple sets of second cylinder 8 are all connected with second lug 11 at one end, multiple sets of second lug 11 are all of rubber material, which can increase the fixing and mounting stability of second cylinder 8 and external shaft.

[0024] The working principle of the embodiment is as follows: when in use, the shaft is inserted through the inner wall of dynamic ring 2, and threaded ring 9 is rotated, which can move multiple sets of first cylinder 4 towards the inner wall of dynamic ring 2 by means of first chamfer 10, so that multiple sets of first cylinder 4 can be tightly fitted with the shaft to fix and mount dynamic ring 2 with the shaft, so that the shaft can drive dynamic ring 2 to rotate, at this time, if the shaft drives dynamic ring 2 to rotate and vibrate, dynamic ring 2 will contact multiple sets of first lug 5 at static ring 1, and the spring force of spring 6 can buffer and inhibit the vibration of dynamic ring 2, so as to avoid the mutual contact and damage of dynamic ring 2 and static ring 1.

[0025] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A sealing ring for a shaft, comprising a stationary ring (1), characterized in that: A dynamic ring (2) is provided at one end of the static ring (1), and a plurality of groups of grooves (3) are provided on the static ring (1). First columns (4) are loosely fitted in the plurality of groups of grooves (3), and springs (6) are connected between the plurality of groups of first columns (4) and the grooves (3).

2. A sealing ring for shafts according to claim 1, characterized in that: The movable ring (2) is provided with a plurality of through holes (7), and the plurality of through holes (7) are all loosely fitted with a second column (8). The movable ring (2) is threadedly connected with a threaded ring (9), and one end of the threaded ring (9) is provided with a first chamfer (10), and the first chamfer (10) is in contact with one end of the plurality of second columns (8).

3. The sealing ring for shafts according to claim 1, characterized in that: Multiple groups of the first columns (4) are connected to first protrusions (5) near the dynamic ring (2), and the multiple groups of the first protrusions (5) are all made of rubber.

4. The sealing ring for shafts according to claim 1, characterized in that: A second chamfer (13) is provided at one end of the movable ring (2).

5. The sealing ring for shafts according to claim 2, characterized in that: The contact points between the plurality of groups of the second columns (8) and the first chamfers (10) are all hemispherical in design.

6. The sealing ring for shafts according to claim 2, characterized in that: The threaded ring (9) is connected to a plurality of groups of protrusions (12).

7. The sealing ring for shafts according to claim 2, characterized in that: One end of each of the plurality of groups of the second columns (8) is connected to a second protrusion (11), and each of the plurality of groups of the second protrusion (11) is made of rubber.

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