CN218440264U - Z-shaped sealing ring - Google Patents

Abstract

The application relates to a Z-shaped sealing ring, and relates to the technical field of water pump bearings. The bearing comprises a sealing outer ring, wherein a sealing middle layer is arranged in the sealing outer ring, a sealing inner ring is arranged on one side, away from the sealing outer ring, of the sealing middle layer, and one side, close to a retainer, of the sealing inner ring is in clearance fit with the side wall of the retainer. When the bearing of the sealing ring is used, the bearing rotates at a high speed when the bearing is used, the structures of the bearing inner ring, the bearing outer ring and the retainer all rotate, compared with the sealing ring in the related technology, the sealing ring in the application is adopted, even under the condition that the diameter of the bearing is small, due to the fact that the sealing inner ring and the retainer are in clearance fit, interference between the sealing inner ring and the retainer is not prone to occurring, the possibility that the retainer interferes with the sealing ring along with the rotation of the bearing when the diameter of the bearing is too small is reduced, the possibility that the sealing ring is abraded by the retainer is further reduced, and the service life of the sealing ring is prolonged.

Description

Z-shaped sealing ring

Technical Field

The application relates to the field of water pump bearings, in particular to a Z-shaped sealing ring.

Background

The bearing is an important part in the modern mechanical equipment, and the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the movement process of the mechanical rotating body and ensure the rotation precision of the mechanical rotating body.

At present, a bearing includes an outer ring, the outer ring is of an annular structure, a retainer is arranged in the outer ring, a sealing ring is arranged between the retainer and the outer ring, and an inner ring is attached to a side wall of the retainer away from the sealing ring.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology, when the diameter of the bearing in the related technology is small, when the bearing rotates, the retainer is easy to interfere with the sealing ring, the normal work of the bearing is influenced, meanwhile, the sealing ring is easy to wear, the service life of the sealing ring is shortened, and therefore improvement is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that when the diameter of a bearing is small, abrasion is easy to generate along with the rotation of the bearing in the seal ring in the related art, the application provides a Z-shaped seal ring.

The application provides a Z type sealing washer adopts following technical scheme:

a mandrel is inserted into a Z-shaped sealing ring and arranged in a bearing, a retainer is arranged on one side of the Z-shaped sealing ring and comprises a sealing outer ring, a sealing middle layer is arranged in the sealing outer ring, a sealing inner ring is arranged on one side, away from the sealing outer ring, of the sealing middle layer, an inclined plane is arranged on one side, close to the retainer, of the sealing inner ring, and the inclined plane is in clearance fit with the side wall of the retainer. Through adopting above-mentioned technical scheme, when the bearing that adopts the sealing washer in this application is being used, along with the bearing rotates at a high speed when using, the structure of bearing inner ring, outer loop and holder all can produce the rotation, compare in the sealing washer among the correlation technique, adopt the sealing washer in this application, even under the less condition of bearing diameter, because clearance fit between sealed inner ring and the holder, so be difficult for producing the interference between sealed inner ring and the holder, reduced when the bearing diameter is too little, along with the rotation holder of bearing and the possibility that the sealing washer produced the interference, and then reduced the possibility that the sealing washer was worn and torn by the holder, prolonged the life of sealing washer.

Optionally, a sealing inner layer is arranged on one side, away from the sealing middle layer, of the sealing inner ring, and the thickness of the sealing inner layer is larger than that of the sealing inner ring.

Through adopting above-mentioned technical scheme, the sealing performance of sealing washer has further been promoted to the structure of sealed inlayer, and when adopting the sealing washer in this application to seal, because sealed inner circle and holder clearance fit, when the thickness of sealed inlayer is greater than the thickness of sealed inner circle, has reduced because there is the possibility that the sealing performance that the clearance leads to reduces between sealed inner circle and the holder, has increased the leakproofness of sealing washer in this application.

Optionally, a wear-resistant ring is arranged on one side, away from the sealing inner ring, of the sealing inner layer.

Through adopting above-mentioned technical scheme, when the bearing that adopts the sealing washer in this application is carrying out the during operation, along with the rotation of bearing, the dabber also rotates, wear-resisting ring's structure, sealed inlayer and dabber direct contact's possibility has been reduced, the sealing washer that is provided with wear-resisting ring in this application compares in the sealing washer that does not set up wear-resisting ring, sealed inlayer is difficult by the rotational wear at the during operation in the sealing washer that is provided with wear-resisting ring, sealed inlayer has been reduced and has been lost at the during operation, thereby the holistic life of system has been prolonged.

Optionally, one side of the wear-resistant ring, which is far away from the retainer, is provided with a curved ring, and the curved ring is bent towards one side close to the axis.

Through adopting above-mentioned technical scheme, the structure of curved surface ring is compared and is directly adopted the right angle face to link up, and on the one hand when the dabber produces the rotation, the structural seal nature of curved surface ring is higher, and on the other hand, the structure of curved surface ring is compared in direct contact's form, has reduced the possibility that wear-resisting ring is damaged by the friction under the high-speed rotation of bearing, has promoted the holistic stability of system.

Optionally, one side that the curved surface ring is close to the axle center is provided with the closed ring, the closed ring sets up with the laminating of dabber lateral wall.

Through adopting above-mentioned technical scheme, the combined action of curved surface ring and closed ring for on the one hand, when the bearing rotated at high speed, the wearability of wear ring was promoted, and on the other hand, the further promotion of structure of closed ring the leakproofness of sealing washer in this application.

Optionally, a sealing glue layer is arranged on one side of the sealing ring away from the retainer, and the sealing glue layer is connected with the side wall of the mandrel.

Through adopting above-mentioned technical scheme, the structure of sealing the glue film is compared in the structure of curved surface ring sum sealing ring, has reduced the inside possibility of outside slight dust entering into the bearing to reduced because slight dust gets into the possibility that leads to the inside quilt of bearing to corrode, thereby promoted the whole life of system.

Optionally, the sealing glue layer is detachably connected with the sealing ring.

Through adopting above-mentioned technical scheme, operating personnel can be with sealing the glue film from closed ring dismantlement down to whether the bearing that uses the sealing washer in this application can judge according to actual conditions and need seal the glue film and be connected with it, has increased the holistic suitability of system.

Optionally, a groove for increasing friction force is formed in the side wall, away from the mandrel, of the sealing glue layer.

Through adopting above-mentioned technical scheme, when operating personnel dismantled the closed glue film, can press the recess with the finger end, compare in the lateral wall that directly presses the closed glue film and dismantle the closed glue film, the structure of recess has promoted operating personnel's convenience.

In summary, the present application includes at least one of the following benefits:

1. compared with the sealing ring in the related technology, the sealing ring in the application has the advantages that even under the condition that the diameter of the bearing is small, the sealing ring is in clearance fit with the retainer, so that interference between the sealing ring and the retainer is not easy to generate, the possibility of interference between the retainer and the sealing ring along with the rotation of the bearing when the diameter of the bearing is too small is reduced, the possibility of abrasion of the sealing ring by the retainer is further reduced, and the service life of the sealing ring is prolonged;

2. the structure of the wear-resistant ring is adopted, when the bearing of the sealing ring works, the mandrel also rotates along with the rotation of the bearing, and the structure of the wear-resistant ring reduces the possibility that the sealing inner layer is in direct contact with the mandrel;

3. the structure that has adopted the curved surface ring compares in directly adopting the right angle face to link up, and on the one hand when the dabber produces the rotation, the structural seal nature of curved surface ring is higher, and on the other hand, the structure of curved surface ring is compared in direct contact's form, has reduced the possibility that the wear ring is damaged by the friction under the high-speed rotation of bearing, has promoted the holistic stability of system.

Drawings

FIG. 1 is a schematic structural diagram of a schematic diagram for embodying a seal ring in the present application;

FIG. 2 is a schematic structural diagram for showing a connection relationship between a seal ring and a mandrel in an embodiment of the present application;

FIG. 3 is a schematic structural diagram for showing a connection relationship between a seal ring and a retainer in an embodiment of the present application;

FIG. 4 is an enlarged view of portion A of FIG. 3;

in the figure: 1. a mandrel; 11. sealing the outer ring; 12. sealing the middle layer; 13. sealing the inner ring; 14. an inclined surface; 15. a holder; 2. Sealing the inner layer; 3. a wear-resistant ring; 4. a curved ring; 5. a closed loop; 6. sealing the adhesive layer; 7. a groove; 8. connecting blocks; 81. And connecting the grooves.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a Z type sealing washer. Referring to fig. 1 and 2, a Z-shaped seal ring is generally used for sealing a mandrel 1 and a bearing, and the Z-shaped seal ring is of a ring structure, the mandrel 1 is inserted into the seal ring, and the bearing is fixed on one side of the seal ring close to the insertion end of the mandrel 1.

Referring to fig. 1 and 3, a Z-shaped sealing ring includes a sealing outer ring 11, the sealing outer ring 11 abuts against an outer ring of a bearing, the sealing outer ring 11 is of an annular structure, a sealing middle layer 12 is welded and fixed in the sealing outer ring 11, a sealing inner ring 13 is welded and fixed on one side of the sealing middle layer 12 away from the sealing outer ring 11, an inclined surface 14 is provided on a side wall of the sealing inner ring 13 close to a retainer 15, the inclined surface 14 inclines toward a direction away from the retainer 15, so that a gap exists between the sealing inner ring 13 and the retainer 15, and therefore the possibility of interference between the retainer 15 and the sealing inner ring 13 when the retainer rotates is reduced.

Referring to fig. 1, a sealing inner layer 2 is welded and fixed on one side of the sealing inner ring 13, which is far away from the sealing middle layer 12, the sealing inner layer 2 and the sealing middle layer 12 are coaxial and have the same thickness, so that a Z-shaped structure is formed with the sealing inner ring 13, and the possibility of interference between the retainer 15 and the sealing ring during rotation is reduced under the condition that the overall sealing performance of the sealing ring is ensured.

Referring to fig. 1 and 4, an anti-abrasion ring 3 is fixedly welded on one side of the sealing inner layer 2 away from the sealing middle layer 12, a curved ring 4 is integrally formed on one side of the anti-abrasion ring 3 away from the bearing, the curved ring 4 is bent towards one side away from the bearing, a closed ring 5 is integrally formed on the inner side wall of the curved ring 4, and a connecting groove 81 is formed in the side wall of the closed ring 5 away from the sealing inner layer 2; a sealing glue layer 6 is arranged on one side of the sealing ring 5 far away from the sealing inner layer 2, a connecting block 8 is arranged on one side of the sealing glue layer 6 close to the sealing ring 5, and the connecting block 8 is inserted into the connecting groove 81 in an interference manner; the outer side wall of the sealing glue layer 6 is provided with a groove 7.

The implementation principle of a Z type sealing washer of this application embodiment does: when the sealing ring is used, an operator can firstly sleeve the sealing ring on the mandrel 1, then insert one end of the mandrel 1 into the bearing and connect the sealing ring with the bearing, at the moment, a gap exists between the sealing inner ring 13 and the retainer 15 in the bearing due to the existence of the inclined surface 14, and therefore the possibility of interference between the sealing inner ring 13 and the retainer 15 when the bearing rotates can be reduced.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A Z type sealing washer is inserted in and is equipped with dabber (1), and it sets up in the bearing, and its one side is provided with holder (15), its characterized in that: the sealing device is characterized by comprising a sealing outer ring (11), wherein a sealing middle layer (12) is arranged in the sealing outer ring (11), a sealing inner ring (13) is arranged on one side, away from the sealing outer ring (11), of the sealing middle layer (12), an inclined surface (14) is formed on one side, close to a retainer (15), of the sealing inner ring (13), and the inclined surface (14) is in clearance fit with the side wall of the retainer (15).

2. A Z-ring seal according to claim 1 wherein: one side, far away from the sealing middle layer (12), of the sealing inner ring (13) is provided with a sealing inner layer (2), and the thickness of the sealing inner layer (2) is larger than that of the sealing inner ring (13).

3. A Z-seal according to claim 2, wherein: and a wear-resistant ring (3) is arranged on one side of the sealing inner layer (2) far away from the sealing inner ring (13).

4. A Z-ring seal according to claim 3 wherein: one side of the wear-resistant ring (3) far away from the retainer (15) is provided with a curved ring (4), and the curved ring (4) is bent towards one side close to the axis.

5. The Z-seal according to claim 4, wherein: one side that curved surface ring (4) are close to the axle center is provided with closed ring (5), closed ring (5) and dabber (1) lateral wall laminating setting.

6. A Z-ring seal according to claim 5, wherein: one side of the closed ring (5) far away from the retainer (15) is provided with a closed glue layer (6), and the closed glue layer (6) is connected with the side wall of the mandrel (1).

7. The Z-seal according to claim 6 wherein: the sealing glue layer (6) is detachably connected with the sealing ring (5).

8. The Z-seal ring according to claim 7, wherein: and a groove (7) for increasing friction force is formed in the side wall, away from the mandrel (1), of the sealing glue layer (6).

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