Rubber sealing ring structure with long fatigue life

Abstract

The utility model relates to the technical field of sealing rings, in particular to a long-fatigue-life rubber sealing ring structure which comprises a body, a first containing groove is formed in one side of the body, an outer lip is formed on the outer circle of the side, away from the first containing groove, of the body, and an inner lip is formed on the inner circle of the side, away from the first containing groove, of the body. A first containing groove is formed in the body, a second containing groove is formed between the outer lip and the inner lip, and a supporting inner core is formed in the body and arranged between the first containing groove and the second containing groove. The rubber sealing ring has the beneficial effects that a traditional rubber sealing ring structure is improved, the silica gel lining is compounded in the rubber sealing ring structure, the silica gel lining is good in rebound resilience and can provide good structural support, and the defects that the rubber structure strength is insufficient and the fatigue life is insufficient are overcome; the steel framework is added in the rubber sealing ring, so that the strength and the weight of the sealing ring are improved, and the sealing failure caused by pressure blowing or extrusion deformation during use is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing rings, in particular to a rubber sealing ring structure with a high fatigue life. Background Art

[0002] The sealing of high-pressure reactors of new energy battery materials is generally sealed with rubber sealing rings. The sealing ring structures currently used are as follows: Figure 4 As shown, it is made of pure rubber. Due to the hardness and structural strength of rubber, in actual use, the sealing ring often has insufficient compression and rebound performance, resulting in leakage, and low fatigue life, resulting in unplanned shutdown and maintenance. Utility Model Content

[0003] The utility model proposes a rubber sealing ring structure with a long fatigue life in order to solve the above problems.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A high fatigue life rubber sealing ring structure comprises a main body, a first accommodating groove is formed on one side of the main body, an outer lip is formed on the outer circle of the side of the main body away from the first accommodating groove, an inner lip is formed on the inner circle of the side of the main body away from the first accommodating groove, a second accommodating groove is formed between the outer lip and the inner lip, a supporting inner core is formed inside the main body, and the supporting inner core is arranged between the first accommodating groove and the second accommodating groove.

[0006] Furthermore, the supporting inner core is a silicone lining, and the cross section of the silicone lining is any one of a circular shape and a square shape.

[0007] Furthermore, the supporting inner core is a steel frame.

[0008] Furthermore, the cross-section of the steel frame is any one of an I-shape and a U-shape.

[0009] Furthermore, the supporting inner core includes a silicone lining, and a steel frame is wrapped in the silicone lining.

[0010] By adopting the above technical scheme, the beneficial effects of the utility model are as follows: by improving the traditional rubber sealing ring structure, a silicone lining is compounded therein, the silicone lining has good resilience, can provide good structural support, and overcomes the shortcomings of insufficient strength and fatigue life of the rubber structure; adding a steel skeleton in the rubber sealing ring improves the strength and weight of the sealing ring, avoiding failure of the seal caused by being blown out by pressure or squeezed and deformed during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 This is a structural schematic diagram of the first embodiment of the utility model;

[0013] Figure 2 This is a schematic structural diagram of the second embodiment of the utility model;

[0014] Figure 3 This is a schematic structural diagram of Embodiment 3 of the present utility model;

[0015] Figure 4 It is a schematic diagram of the existing sealing ring structure.

[0016] The following are the descriptions of the reference numerals:

[0017] 1. Main body; 2. First containing groove; 3. Outer lip; 4. Inner lip; 5. Second containing groove; 6. Support inner core; 61. Silicone lining; 62. Steel frame. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Embodiment 1:

[0020] like Figure 1 As shown, a high fatigue life rubber sealing ring structure includes a main body 1, a first accommodating groove 2 is formed on one side of the main body 1, an outer lip 3 is formed on the outer circle of the side of the main body 1 away from the first accommodating groove 2, an inner lip 4 is formed on the inner circle of the side of the main body 1 away from the first accommodating groove 2, a second accommodating groove 5 is formed between the outer lip 3 and the inner lip 4, and a supporting inner core 6 is formed inside the main body 1, and the supporting inner core 6 is arranged between the first accommodating groove 2 and the second accommodating groove 5.

[0021] In this embodiment, the supporting inner core 6 is a silicone lining 61 .

[0022] In this embodiment, the cross section of the silicone liner 61 is square.

[0023] The silicone liner 61 is directly formed in the body 1 and is processed and combined in one step using a special tooling fixture, which solves the problem that the rubber seal ring has poor rebound in repeated inflation and degassing and vacuum conditions, affecting the sealing performance and insufficient fatigue life. The seal ring is actually installed in a sealing groove with a width of φ1385*φ1360 and a depth of 25mm. In an electrolyte environment, it is cycled once for 7 minutes at an alternating pressure of -0.1 to 0.5Mpa. At 0.5Mpa, the system leakage is less than 1.0Kpa / Min, and the pressure drop is less than 1Kpa / Min at -95Kpa. The actual service life is more than 6 months, and the product performance is much higher than that of conventional seal ring products without silicone lining.

[0024] Embodiment 2:

[0025] like Figure 2 As shown, a high fatigue life rubber sealing ring structure includes a main body 1, a first accommodating groove 2 is formed on one side of the main body 1, an outer lip 3 is formed on the outer circle of the side of the main body 1 away from the first accommodating groove 2, an inner lip 4 is formed on the inner circle of the side of the main body 1 away from the first accommodating groove 2, a second accommodating groove 5 is formed between the outer lip 3 and the inner lip 4, and a supporting inner core 6 is formed inside the main body 1, and the supporting inner core 6 is arranged between the first accommodating groove 2 and the second accommodating groove 5.

[0026] In this embodiment, the supporting inner core 6 is a steel frame 62 made of 304 steel.

[0027] In this embodiment, the cross section of the steel frame 62 is an I-shape.

[0028] The steel frame 62 is directly formed in the body 1 and is processed and combined in one step using a special tooling fixture, which overcomes the shortcomings of insufficient strength and light weight of a simple rubber structure, and solves the problem that the rubber seal ring is easily blown out and squeezed and deformed by pressure in a high-pressure reactor, resulting in seal failure. The seal ring is actually installed in a sealing groove with a width of φ1385*φ1360 and a depth of 25mm. In an electrolyte environment, it is cycled once for 7 minutes at an alternating pressure of -0.1 to 0.5Mpa. At 0.5Mpa, the system leakage is less than 1.0Kpa / Min, and the pressure drop is less than 1Kpa / Min at -95Kpa. The actual service life is more than 6 months, and the product performance is much higher than that of conventional seal ring products without adding a steel frame.

[0029] Embodiment three:

[0030] like Figure 3As shown, a high fatigue life rubber sealing ring structure includes a main body 1, a first accommodating groove 2 is formed on one side of the main body 1, an outer lip 3 is formed on the outer circle of the side of the main body 1 away from the first accommodating groove 2, an inner lip 4 is formed on the inner circle of the side of the main body 1 away from the first accommodating groove 2, a second accommodating groove 5 is formed between the outer lip 3 and the inner lip 4, and a supporting inner core 6 is formed inside the main body 1, and the supporting inner core 6 is arranged between the first accommodating groove 2 and the second accommodating groove 5.

[0031] In this embodiment, the supporting inner core 6 includes a silicone lining 61 , and a steel frame 62 is wrapped in the silicone lining 61 .

[0032] The sealing ring of this embodiment retains the high resilience characteristics of the silicone lining 61 and has the strength and supporting force provided by the steel frame 62. It has a good rebound effect, is not prone to leakage, deformation and damage, and has a high fatigue life.

[0033] Components not described in detail herein are prior art.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rubber sealing ring structure with a long fatigue life, characterized in that: The invention comprises a main body (1), wherein a first receiving groove (2) is formed on one side of the main body (1), an outer lip (3) is formed on the outer circle of a side of the main body (1) away from the first receiving groove (2), an inner lip (4) is formed on the inner circle of a side of the main body (1) away from the first receiving groove (2), a second receiving groove (5) is formed between the outer lip (3) and the inner lip (4), a supporting inner core (6) is formed inside the main body (1), the supporting inner core (6) is arranged between the first receiving groove (2) and the second receiving groove (5), and the supporting inner core (6) comprises a silicone lining (61), and a steel frame (62) is wrapped in the silicone lining (61).

2. A high fatigue life rubber sealing ring structure according to claim 1, characterized in that: The cross section of the silica gel lining (61) is any one of a circular shape and a square shape.

3. The high fatigue life rubber sealing ring structure according to claim 1, characterized in that: The cross section of the steel frame (62) is any one of an I-shaped and a U-shaped.

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