Double-lip oil seal structure based on fluorosilicone acrylate composite material

Abstract

The utility model relates to the technical field of beverage production equipment, in particular to a double-lip oil seal structure based on fluorosilicone acrylate composite materials, which comprises a sealing ring, the whole appearance of the sealing ring is in a circular ring shape, and the sealing ring is made of fluorosilicone acrylate composite materials. An annular groove coaxial with the sealing ring is formed in the annular face of one side of the sealing ring. The inner circumferential face, close to the center shaft of the sealing ring, of the annular groove is provided with a ball groove which is coaxial with the sealing ring, and the cross section of the ball groove is semicircular. The oil seal structure is made of the fluorosilicone acrylate composite material, so that the oil seal structure has the advantages of good elasticity, oil resistance, high temperature resistance and the like; meanwhile, the oil seal lip adopts a split lip design, so that the oil seal lip is provided with two or more lip surfaces with different gradients, and the oil seal structure can be expanded to adapt to more than two kinds of grease; the cross section of the split lip design is consistent with a corrugated sealing mode in the prior art, and the sealing effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to beverage production equipment technical field, concretely is a kind of double-lip oil seal structure based on fluorosilicone acrylate composite material. BACKGROUND

[0002] Double-lip oil seal is an oil seal design with two sealing lips, which can provide stronger sealing performance than single-lip oil seals, making it suitable for high-pressure and high-speed environments. Double-lip oil seals are commonly used in applications that may be affected by dirt, water, or other impurities, such as heavy machinery and construction equipment.

[0003] Traditional oil seal materials are mainly based on nitrile rubber (NBR) and rely on sulfur vulcanization systems. This results in poor temperature resistance of the oil seal structure (long-term use below 100°C), and lip cracking easily occurs under heavy truck continuous braking conditions. The material's elasticity drops sharply at low temperatures (below -30°C), leading to leakage during startup in cold regions. Additionally, traditional oil seals use PTFE coating to reduce friction, but the PTFE coating is prone to peeling and lacks durability. SUMMARY

[0004] To overcome the deficiencies in the prior art mentioned above, the utility model provides a double-lip oil seal structure based on fluorosilicone acrylate composite material.

[0005] The utility model overcomes the above technical problems by adopting the following technical solutions, specifically:

[0006] A double-lip oil seal structure based on fluorosilicone acrylate composite material includes a sealing ring. The overall appearance of the sealing ring is circular. The material of the sealing ring is fluorosilicone acrylate composite material. A skeleton with an L-shaped cross section is embedded inside the sealing ring coaxially.

[0007] As a further scheme of the utility model: an annular groove coaxially arranged with the sealing ring is formed on one side of the annular surface of the sealing ring.

[0008] As a further scheme of the utility model: a ball groove with a semicircular cross section coaxially arranged with the sealing ring is formed on the inner circumferential surface of the annular groove close to the central axis of the sealing ring. A spring ring is embedded inside the ball groove.

[0009] As a further scheme of the utility model: a first inclined surface with an inclination angle of forty-five degrees is formed on the end of the inner circumferential surface of the sealing ring close to the ball groove. The first inclined surface is an oil seal lip.

[0010] As a further scheme of the utility model: a notch is formed on the end of the inner circumferential surface of the sealing ring away from the ball groove. The part of the notch protruding into the sealing ring forms a dust lip.

[0011] As a further scheme of the utility model: the inner circumferential surface of the sealing ring is concave inwardly to form a waist between the oil seal lip and the dust lip.

[0012] As a further scheme of the utility model: the inner circumferential surface of the sealing ring is concave inwardly to form a waist between the oil seal lip and the dust lip.

[0013] After the above structure, the utility model has the following beneficial effects compared with the prior art:

[0014] The oil seal structure material of the utility model selects fluorosilicone acrylate composite material, so that the oil seal structure has the advantages of good elasticity (Shao's A hardness 70±5), oil resistance, high temperature resistance and the like; meanwhile, the oil seal lip adopts a split lip design, so that the oil seal lip has two or more than two lip surfaces with different slopes, thereby expanding the oil seal structure to be able to adapt to two or more than two kinds of grease; the cross section of the split lip design is consistent with the corrugated sealing mode in the prior art, and the sealing effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole first perspective three-dimensional structure schematic view of the utility model.

[0016] Figure 2 It is a whole second perspective three-dimensional structure schematic view of the utility model.

[0017] Figure 3 It is an internal structure schematic view of the utility model.

[0018] Figure 4 It is a sectional structure schematic view of the utility model.

[0019] Figure 5 It is Figure 4 A partial structure schematic view.

[0020] In the drawing: 1, sealing ring; 2, annular groove; 3, spring ring; 4, framework; 5, dust lip; 6, ball groove; 7, oil seal lip; 8, waist; 9, annular groove. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer toFigures 1-5 The utility model discloses an embodiment of a double-lip oil seal structure based on fluorosilicone acrylate composite material, which comprises a sealing ring 1, the overall appearance of the sealing ring 1 is annular, the material of the sealing ring 1 is selected from fluorosilicone acrylate composite material, the fluorosilicone acrylate composite material is prior art, and has the advantages of good elasticity (Shore A hardness 70±5), oil resistance, high temperature resistance and the like; a skeleton 4 coaxially arranged with the sealing ring 1 and having an L-shaped cross section is embedded in the sealing ring 1, and the skeleton 4 is used for supporting the entire sealing ring 1.

[0023] Specifically, combined with the accompanying drawings Figure 2 - the accompanying drawings Figure 5 As shown in the drawings, one side of the sealing ring 1 is provided with an annular groove 2 coaxially arranged with the sealing ring 1, and the annular groove 2 is arranged to enable the inside and outside of the sealing ring 1 to move relatively.

[0024] Specifically, combined with the accompanying drawings Figure 3 - the accompanying drawings Figure 5 As shown in the drawings, the inner circumference of the annular groove 2 close to the central axis of the sealing ring 1 is provided with a ball groove 6 coaxially arranged with the sealing ring 1 and having a semicircular cross section, and a spring ring 3 is embedded in the ball groove 6, and the spring ring 3 is arranged to ensure that the entire sealing ring 1 can be tightly fitted on the shaft part to be fitted.

[0025] Specifically, combined with the accompanying drawings Figure 4 - the accompanying drawings Figure 5 As shown in the drawings, the inner circumference of the sealing ring 1 is provided with a first inclined surface with an inclined angle of forty-five degrees at one end close to the ball groove 6, and the first inclined surface is an oil seal lip 7, and the arrangement mode is consistent with the design of the prior art, and the specific working principle and working mode will not be described in detail here.

[0026] Specifically, combined with the accompanying drawings Figure 2 - the accompanying drawings Figure 5 As shown in the drawings, the inner circumference of the sealing ring 1 is provided with a notch at one end away from the ball groove 6, and a part of the notch protruding into the sealing ring 1 forms a dust lip 5.

[0027] Specifically, combined with the accompanying drawings Figure 4 - the accompanying drawings Figure 5 As shown in the drawings, the inner circumference of the sealing ring 1 is recessed inward to form a waist part 8 between the oil seal lip 7 and the dust lip 5; the design of the waist part 8 enables the oil seal lip 7 and the dust lip 5 to work without interfering with each other.

[0028] Specifically, combined with the accompanying drawings Figure 5 As shown in the drawings, the inner circumference of the sealing ring 1 is provided with a plurality of annular grooves 9 coaxial with the sealing ring 1 and arranged obliquely close to the oil seal lip 7, the inclination of the annular grooves 9 gradually decreases from outside to inside, and the lowest inclination is not less than thirty-five degrees, which enables the oil seal lip 7 to form a structure similar to a split lip, and the oil seal lip 7 has two or more lip surfaces with different inclinations.

[0029] Working principle:

[0030] The oil seal structure material is selected from fluorosilicone acrylate composite material, so that the oil seal structure has the advantages of good elasticity (Shore A hardness 70±5), oil resistance, high temperature resistance and the like;

[0031] Since the inner circumferential surface of the sealing ring 1 and the oil seal lip 7 are provided with a plurality of annular grooves 9 coaxial with the sealing ring 1 and arranged obliquely in the close area, the oil seal lip 7 forms a structure similar to a split lip, so that the oil seal lip 7 has two or more than two lip surfaces with different slopes, thereby expanding the oil seal structure to adapt to two or more than two kinds of grease;

[0032] The cross section of the split lip design is consistent with the corrugated sealing mode in the prior art, and the sealing effect is improved.

[0033] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application.

Claims

1. A double-lip oil seal structure based on fluorosilicone acrylate composite material, comprising a sealing ring (1), characterized in that, The sealing ring (1) has an overall ring shape, and the material of the sealing ring (1) is a fluorosilicone acrylate composite material; the sealing ring (1) has a skeleton (4) that is coaxially arranged with it and has an L-shaped cross-section embedded inside.

2. The double-lip oil seal structure based on fluorosilicone acrylate composite material according to claim 1, characterized in that, The sealing ring (1) has an annular groove (2) on one side of its circumferential surface, which is coaxial with it.

3. The double-lip oil seal structure based on fluorosilicone acrylate composite material according to claim 2, characterized in that, The annular groove (2) has a ball groove (6) on its inner circumferential surface near the central axis of the sealing ring (1), which is coaxial with the sealing ring (1) and has a semi-circular cross-section. A spring ring (3) is embedded inside the ball groove (6).

4. The double-lip oil seal structure based on fluorosilicone acrylate composite material according to claim 3, characterized in that, The inner circumferential surface of the sealing ring (1) is provided with a first inclined surface with an angle of 45 degrees at the end close to the ball groove (6), and the first inclined surface is an oil seal lip (7).

5. A double-lip oil seal structure based on fluorosilicone acrylate composite material according to claim 4, characterized in that, The inner circumferential surface of the sealing ring (1) is provided with a notch at the end that is away from the ball groove (6), and a portion of the notch protrudes into the sealing ring (1) to form a dustproof lip (5).

6. The double-lip oil seal structure based on fluorosilicone acrylate composite material according to claim 5, characterized in that, The inner circumferential surface of the sealing ring (1) is recessed inward between the oil seal lip (7) and the dustproof lip (5) to form a waist (8).

7. The double-lip oil seal structure based on fluorosilicone acrylate composite material according to claim 4, characterized in that, The inner circumferential surface of the sealing ring (1) and the area close to the oil seal lip (7) are provided with a plurality of annular grooves (9) that are coaxial with the sealing ring (1) and inclined. The slope of the annular grooves (9) gradually decreases from the outside to the inside and the slope is not less than thirty-five degrees.

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