CN218408515U

CN218408515U - Combined sealing element

Info

Publication number: CN218408515U
Application number: CN202123303095.9U
Authority: CN
Inventors: 李向明
Original assignee: Jiangsu Risheng Bearing Co ltd
Current assignee: Jiangsu Risheng Bearing Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2023-01-31
Anticipated expiration: 2031-12-27

Abstract

The utility model relates to a combined sealing piece relates to sealing washer technical field, in order to solve the not good problem of ordinary sealing washer countershaft seal effect, and it includes annular body, pivot and gets rid of the water ring, the annular body cover is established in the pivot, the annular body keeps away from one side of pivot and gets rid of water ring looks adaptation, be provided with first seal lip on the inside wall of annular body, first seal lip sets up along the circumferential direction of annular body, still be provided with the second seal lip on the inside wall of annular body, the second seal lip is located one side that first seal lip was kept away from to the annular body, the extending direction of second seal lip is opposite with first seal lip, first seal lip and second seal lip all overlap and establish in the pivot and with pivot interference fit. This application has the effect that improves sealing capacity.

Description

Combined sealing element

Technical Field

The application relates to the technical field of sealing rings, in particular to a combined sealing element.

Background

The seal is a material or a part that prevents fluid or solid particles from leaking from between adjacent bonding surfaces and prevents foreign substances such as dust and moisture from intruding into parts inside the machine equipment. The storage room temperature of the sealing element is preferably below 30 ℃, so that the sealing element is prevented from high-temperature aging.

In the related art, the common sealing element usually wraps the rotating shaft by means of the elasticity of the common sealing element in the using process to realize sealing, and because a large amount of water needs to be isolated in the use of water pump sealing, the rotating shaft rotates for a long time to rub, the sealing element is only sealed in an elastic tensioning mode, a gap can be caused between the rotating shaft and the sealing element, so that water seepage is caused in the rotating shaft, the sealing performance is influenced, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the not good problem of ordinary sealing washer to the sealed effect of counter shaft, this application provides a composite seal spare.

The application provides a combination sealing member adopts following technical scheme:

the utility model provides a combined sealing piece, includes annular body, pivot and gets rid of the water ring, the annular body cover is established in the pivot, one side and the water ring looks adaptation that gets rid of the pivot are kept away from to the annular body, be provided with first seal lip on the inside wall of annular body, first seal lip sets up along the circumference direction of annular body, still be provided with the second seal lip on the inside wall of annular body, the second seal lip is located one side that the annular body kept away from first seal lip, the extending direction of second seal lip and first seal lip is opposite, first seal lip and second seal lip all overlap and establish in the pivot and with pivot interference fit.

When the water pump is used for sealing, a large amount of water needs to be isolated, the rotating shaft rotates and rubs for a long time, and the sealing element is only sealed in an elastic tensioning mode, so that a gap is formed between the rotating shaft and the sealing element, water seepage in the rotating shaft is caused, and the sealing performance is influenced; by adopting the technical scheme, an operator respectively and integrally forms the first sealing lip and the second sealing lip at two ends of the inner side wall of the annular body, and the extending directions of the first sealing lip and the second sealing lip are opposite; the annular body is sleeved on the rotating shaft, the inner side wall of the annular body is tensioned on the rotating shaft, and the first sealing lip and the second sealing lip are tensioned on the side wall of the rotating shaft and are in interference fit with the rotating shaft; through the arrangement of the first sealing lip and the second sealing lip, the annular body is connected with the rotating shaft more tightly, the possibility of a gap between the annular body and the rotating shaft is reduced, the sealing capacity is improved, and the service life of the annular body is prolonged.

Optionally, one side of the first sealing lip, which is close to the annular body, is provided with an annular rib, the annular rib is arranged along the circumferential direction of the annular body, and the side wall of the annular rib is connected to the annular body.

By adopting the technical scheme, an operator integrally forms an annular ridge on one side of the first sealing lip, and the side wall of the annular ridge is connected to the annular body; through the setting of annular arris, increased the thickness of being connected between annular body and the first seal lip, thereby reduce first seal lip when first seal lip elastic tensioning and be elongated and lead to the cracked possibility to appear in the junction of first seal lip and annular body, improved the tensioning ability of first seal lip, prolonged the life of first seal lip.

Optionally, a sleeve ring is arranged on the outer side wall of the annular body, the sleeve ring and the first sealing lip are coaxially arranged, and a fit clearance embedded with the rotating shaft is formed between the sleeve ring and the first sealing lip.

By adopting the technical scheme, the outer side wall of the annular body is integrally formed with the lantern ring, and a fit clearance matched with the rotating shaft is formed between the lantern ring and the first sealing lip; through the setting of the lantern ring, the sealed space between annular body and the pivot has been increased to annular body breaks away from the pivot when having reduced the high-speed rotation of pivot the possibility, has improved annular body connection's compactness.

Optionally, a yielding plane for being attached to the rotating shaft is arranged on one side, away from the annular body, of the lantern ring.

By adopting the technical scheme, an operator sets a abdicating plane on the side wall of the lantern ring; the arrangement of the abdicating plane facilitates the operation of operators to embed the annular body in the rotating shaft, thereby facilitating the operation.

Optionally, a third sealing lip is arranged on one side of the annular body close to the second sealing lip, the third sealing lip is arranged along the circumferential direction of the annular body, and an area for installing the water slinger is formed between the third sealing lip and the outer side wall of the annular body.

Through adopting above-mentioned technical scheme, be close to the third seal lip of one side integrated into one piece of second seal lip at annular body, form the region of getting rid of the water ring installation between third seal lip and the annular body, through the setting of third seal lip, the operating personnel of being convenient for confirms the position of getting rid of the water ring, closely laminates to getting rid of the water ring simultaneously, reaches the purpose that further seals.

Optionally, one side of the annular body close to the third sealing lip is provided with an annular folded edge, and the annular folded edge is arranged along the circumferential direction of the annular body.

Through adopting above-mentioned technical scheme, operating personnel is close to the annular hem of one side integrated into one piece of third seal lip at annular body, and the setting of annular hem when the ring installation of throwing away water, further spacing to the ring of throwing away water, reduces the high-speed pivoted in-process of pivot and throws away the possibility that the ring was screwed out from annular body, has improved the compactness of throwing away water ring and annular body connection.

Optionally, an annular protrusion is arranged between the third sealing lip and the annular folded edge, and the annular protrusions are sequentially arranged along the circumferential direction of the annular body.

By adopting the technical scheme, an operator integrally forms an annular bulge between the third sealing lip and the annular folded edge, and the annular bulge is arranged along the circumferential direction of the annular body; through the setting of annular arch, improved the contractility of annular body, the increase friction plays certain tight effect of supporting to the ring that throws water simultaneously.

Optionally, the annular protrusion is provided with a separation groove along the circumferential direction, and the separation groove is provided along the circumferential direction of the annular protrusion.

Through adopting above-mentioned technical scheme, operating personnel sets up the separating groove on annular arch, separating groove's setting to increased annular bellied area of contact, the reinforcing is supported tight effect, improves the leakproofness of annular body.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the first sealing lip and the second sealing lip, the annular body is connected with the rotating shaft more tightly, the possibility of a gap between the annular body and the rotating shaft is reduced, the sealing capability is improved, and the service life of the annular body is prolonged;

2. through the arrangement of the annular ridge, the connecting thickness between the annular body and the first sealing lip is increased, the possibility that the first sealing lip is stretched when the first sealing lip is elastically tensioned to cause the fracture of the connecting part of the first sealing lip and the annular body is reduced, the tensioning capacity of the first sealing lip is improved, and the service life of the first sealing lip is prolonged;

3. through the setting of third seal lip, the operating personnel of being convenient for confirms the position of getting rid of the water ring, closely laminates to getting rid of the water ring simultaneously, reaches the purpose that further seals.

Drawings

Fig. 1 is a schematic structural diagram of a composite seal in an embodiment of the present application.

Fig. 2 is an exploded schematic view for showing the positional relationship among the rotating shaft, the annular body and the water slinger in the embodiment of the present application.

Fig. 3 is a schematic structural view for embodying the connection relationship of the first seal lip and the annular body in the embodiment of the present application.

Fig. 4 is a schematic structural diagram for showing a positional relationship between the second seal lip and the third seal lip in the embodiment of the present application.

Description of reference numerals: 1. an annular body; 11. a collar; 111. a yielding plane; 12. annularly folding; 13. an annular projection; 131. a separation tank; 2. a rotating shaft; 3. a water throwing ring; 4. a first seal lip; 41. an annular ridge; 5. a second sealing lip; 6. a third sealing lip.

Detailed Description

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

The embodiment of the application discloses a combined sealing element. Referring to fig. 1 and 2, the combined sealing element includes an annular body 1, a rotating shaft 2 and a water slinging ring 3, the annular body 1 is of a hollow circular ring structure, the annular body 1 can be made of rubber, the annular body 1 is sleeved on the outer edge side wall of the rotating shaft 2, one side of the annular body 1, which is far away from the rotating shaft 2, is matched with the water slinging ring 3, and the water slinging ring 3 can be made of stainless steel.

Referring to fig. 1 and 3, integrated into one piece has first seal lip 4 on the inside wall on the annular body 1, and first seal lip 4 sets up along the circumferential direction of annular body 1, and one side integrated into one piece that first seal lip 4 was kept away from to annular body 1 has second seal lip 5, and second seal lip 5 and first seal lip 4 are the cylinder shell column structure, and second seal lip 5 and the coaxial setting of first seal lip 4, and second seal lip 5 and first seal lip 4 all overlap and establish on pivot 2 and with pivot 2 interference fit.

Referring to fig. 3 and 4, a third sealing lip 6 is integrally formed on one side of the annular body 1 close to the second sealing lip 5, the third sealing lip 6 is of a cylindrical sleeve-shaped structure, and the extension length of the third sealing lip 6 is greater than that of the second sealing lip 5.

Referring to fig. 3, one side integrated into one piece that first seal lip 4 is close to annular body 1 has annular arris 41, annular arris 41 is bar structure, annular arris 41 sets up along annular body 1's circumferential direction, annular arris 41 and annular body 1's lateral wall welded fastening, annular body 1 is close to one side integrated into one piece of annular arris 41 has lantern ring 11, lantern ring 11 sets up along annular body 1's circumferential direction, lantern ring 11 is kept away from one side of annular arris 41 and has been seted up and has been stepped down plane 111, form between lantern ring 11 and the first seal lip 4 and pivot 2 complex fit clearance.

Referring to fig. 4, an annular folded edge 12 is integrally formed on one side of the annular body 1 close to the third seal lip 6, the annular folded edge 12 is arranged along the circumferential direction of the annular body 1, and an area for installing the water slinger 3 is formed between the annular body 1 and the third seal lip 6.

Referring to fig. 4, an annular protrusion 13 is integrally formed between the annular flange 12 and the third seal lip 6, the annular protrusion 13 is disposed along the circumferential direction of the third seal lip 6, a partition groove 131 is disposed on a side wall of the annular protrusion 13, and the partition groove 131 is disposed along the circumferential direction of the annular protrusion 13.

The implementation principle of a combined sealing element in the embodiment of the application is as follows: when the water pump is subjected to sealing treatment, an operator takes out the rotating shaft 2, the annular body 1 is sleeved on the rotating shaft 2, the first sealing lip 4 and the second sealing lip 5 are tensioned on the rotating shaft 2, the water slinging ring 3 is taken out at the moment, the water slinging ring 3 penetrates through the rotating shaft 2, the water slinging ring 3 is pressed to a specified position through a mold, the inner ring of the water slinging ring 3 is inserted into the second sealing lip 5, and the side wall of the water slinging ring 3 is attached to the third sealing lip 6, so that a three-layer sealing structure of the annular body 1 is realized; through the setting of first seal lip 4 and second seal lip 5, make annular body 1 be connected inseparabler with pivot 2, reduce annular body 1 and pivot 2 the possibility in clearance appears, improved sealing capacity, prolonged annular body 1's life.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, 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

1. The utility model provides a combined sealing element, includes annular body (1), pivot (2) and gets rid of water ring (3), annular body (1) cover is established on pivot (2), one side and the water ring (3) looks adaptation that gets rid of pivot (2) are kept away from in annular body (1), its characterized in that: be provided with first seal lip (4) on the inside wall of annular body (1), the circumference direction setting of annular body (1) is followed in first seal lip (4), still be provided with second seal lip (5) on the inside wall of annular body (1), one side of first seal lip (4) is kept away from in second seal lip (5) being located annular body (1), the extending direction of second seal lip (5) and first seal lip (4) is opposite, first seal lip (4) and second seal lip (5) all overlap and establish on pivot (2) and with pivot (2) interference fit.

2. The composite seal of claim 1, wherein: one side of the first sealing lip (4) close to the annular body (1) is provided with an annular rib (41), the annular rib (41) is arranged along the circumferential direction of the annular body (1), and the side wall of the annular rib (41) is connected to the annular body (1).

3. The composite seal of claim 2, wherein: be provided with lantern ring (11) on the lateral wall of annular body (1), lantern ring (11) and first seal lip (4) coaxial setting, form the fit clearance who inlays with pivot (2) between lantern ring (11) and first seal lip (4).

4. A composite seal according to claim 3, wherein: and one side of the lantern ring (11) far away from the annular body (1) is provided with a yielding plane (111) which is attached to the rotating shaft (2).

5. The composite seal of claim 1, wherein: one side that annular body (1) is close to second seal lip (5) is provided with third seal lip (6), third seal lip (6) set up along the circumferential direction of annular body (1), form the region that supplies to get rid of water ring (3) installation between the lateral wall of third seal lip (6) and annular body (1).

6. The composite seal of claim 5, wherein: one side of the annular body (1) close to the third sealing lip (6) is provided with an annular folding edge (12), and the annular folding edge (12) is arranged along the circumferential direction of the annular body (1).

7. The composite seal of claim 6, wherein: an annular bulge (13) is arranged between the third sealing lip (6) and the annular folded edge (12), and the annular bulges (13) are sequentially arranged along the circumferential direction of the annular body (1).

8. The composite seal of claim 7, wherein: the annular bulge (13) is provided with a separation groove (131) along the circumferential direction, and the separation groove (131) is formed along the circumferential direction of the annular bulge (13).