Combined truck oil seal with high sealing performance

Abstract

The utility model discloses a combined truck oil seal with high sealing performance, which comprises a sealing ring framework and an oil slinger framework, the sealing ring framework is connected with a rubber body I, the oil slinger framework is connected with a rubber body II, and the rubber body I is connected with a rubber body II. The first rubber body is provided with an outer diameter wavy line assembling part, a water retaining lip, a light contact muddy water lip, a first muddy water lip, a second muddy water lip and a grease lip, the second rubber body is provided with a mud retaining lip and an inner diameter wavy line assembling part, the mud retaining lip is obliquely arranged outwards, and the mud retaining lip and the water retaining lip form a labyrinth structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil seals and relates to a high-sealing combined truck oil seal. Background Art

[0002] In the trucking industry, wheel hub bearing oil seals often operate in extremely harsh environments, subject to a variety of adverse working conditions. Currently, common commercially available bearing oil seals often exhibit poor pressure resistance in practical applications, which directly shortens their service life. When the pressure on a bearing oil seal is concentrated at a single point, this concentrated pressure can severely damage the seal material, affecting its proper function. Trucks, during operation, experience a variety of complex and variable pressure conditions that bearings encounter, making the inadequate pressure resistance of conventional bearing oil seals particularly pronounced. This can not only lead to lubricant leakage but also further impact the truck's overall performance and driving safety. Therefore, it is crucial to design a highly leak-resistant, modular truck oil seal to address these issues. Utility Model Content

[0003] In order to solve the deficiencies of the prior art, the utility model provides a high-sealing combined truck oil seal.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is: a high-sealing combined truck oil seal, comprising a sealing ring skeleton and an oil slinger skeleton, the sealing ring skeleton being connected to a rubber body 1, the oil slinger skeleton being connected to a rubber body 2, characterized in that the rubber body 1 has an outer diameter wavy line assembly portion, a water retaining lip, a light contact mud and water lip, mud and water lip 1, mud and water lip 2 and a grease lip, the rubber body 2 has a mud retaining lip and an inner diameter wavy line assembly portion, the mud retaining lip is arranged obliquely outward, and the mud retaining lip and the water retaining lip form a maze structure.

[0005] A retaining ring is fixed on the oil slinger frame, and a flow hole is opened on the retaining ring.

[0006] The oil slinger frame is provided with a curling portion matched with the retaining ring.

[0007] An annular spring is installed at the grease lip.

[0008] The light contact mud and water lip and the mud and water lip 1 are both arranged tilted outward, and the mud and water lip 2 is arranged tilted inward.

[0009] The length of the mud water lip 1 is greater than the length of the light contact mud water lip.

[0010] The rubber body is also provided with an anti-seizing convex point matched with the oil slinger skeleton, and the anti-seizing convex point is located between the water retaining lip and the light mud and water contact lip.

[0011] By adopting the above technical solution, the beneficial effects of the utility model are:

[0012] The utility model achieves a high-strength sealing effect through a complex labyrinth structure and a multi-lip structure seal, and meets the sealing performance under extremely harsh truck working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] In the figure, 1a, sealing ring skeleton; 1b, outer diameter wavy line assembly part; 1c, water retaining lip; 1d, anti-seizing protrusion; 1e, light contact mud and water lip; 1f, mud and water lip one; 1g, mud and water lip two; 1h, grease lip; 1i, annular spring; 2a, oil slinger skeleton; 2b, mud retaining lip; 2c, inner diameter wavy line assembly part; 2d, curling part; 3a, retaining ring; 3b, flow hole. DETAILED DESCRIPTION

[0015] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0016] like Figure 1 As shown, the high-sealing combined truck oil seal includes a sealing ring skeleton 1a and an oil slinger skeleton 2a. The sealing ring skeleton 1a is connected to a rubber body 1, and the oil slinger skeleton 2a is connected to a rubber body 2. The rubber body 1 and the rubber body 2 are both connected by the existing vulcanization method; the rubber body 1 has an outer diameter wave line assembly part 1b, a water retaining lip 1c, a light contact mud and water lip 1e, a mud and water lip 1 1f, a mud and water lip 2 1g and a grease lip 1h. In this example, the light contact mud and water lip 1e, the mud and water lip 1 1f, the mud and water lip 2 1g and the grease lip 1h The grease lips 1h are sealing lips, the function of which is to prevent the intrusion of mud and water or the leakage of grease; an annular spring 1i is installed at the grease lip 1h; the rubber body 2 is provided with a mud guard lip 2b and an inner diameter wavy line assembly part 2c. In this embodiment, the outer diameter wavy line assembly part 1b and the inner diameter wavy line assembly part 2c are both existing wavy assemblies, which more effectively achieve a sealing effect and prevent the intrusion of mud and water from the outside and the leakage of grease from the inside; the mud guard lip 2b is arranged tilted outward, and the mud guard lip 2b and the water guard lip 1c form a maze structure, thereby reducing the impact of mud and water.

[0017] A retaining ring 3a is fixed to the oil slinger frame 2a, and a flow hole 3b is opened on the retaining ring 3a. The flow hole 3b can improve the flow of internal grease and play a lubricating role. Specifically, the oil slinger frame 2a has a curling portion 2d that cooperates with the retaining ring 3a.

[0018] The light contact mud and water lip 1e and the mud and water lip 1f are both arranged to be tilted outward, and the mud and water lip 2 1g is arranged to be tilted inward.

[0019] The length of the muddy water lip 1f is greater than the length of the light contact muddy water lip 1e.

[0020] The rubber body 1 also has an anti-seizing convex point 1d that cooperates with the oil slinger skeleton 2a, and the anti-seizing convex point 1d is located between the water retaining lip 1c and the light mud and water contact lip 1e.

[0021] The above components are all common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0022] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A high-sealing combined truck oil seal, comprising a sealing ring skeleton (1a) and an oil slinger skeleton (2a), wherein a rubber body 1 is connected to the sealing ring skeleton (1a), and a rubber body 2 is connected to the oil slinger skeleton (2a), characterized in that: The rubber body 1 is provided with an outer diameter wavy line assembly portion (1b), a water retaining lip (1c), a lightly contacting mud and water lip (1e), a mud and water lip 1 (1f), a mud and water lip 2 (1g), and a grease lip (1h); the rubber body 2 is provided with a mud retaining lip (2b) and an inner diameter wavy line assembly portion (2c); the mud retaining lip (2b) is arranged tilted outward, and the mud retaining lip (2b) and the water retaining lip (1c) form a labyrinth structure.

2. The high-sealing combined truck oil seal according to claim 1, characterized in that: A retaining ring (3a) is also fixed on the oil slinger frame (2a), and a circulation hole (3b) is provided on the retaining ring (3a).

3. The high-sealing combined truck oil seal according to claim 2, characterized in that: The oil slinger skeleton (2a) has a curling portion (2d) that matches the retaining ring (3a).

4. The high-sealing combined truck oil seal according to claim 1, characterized in that: An annular spring (1i) is installed at the grease lip (1h).

5. The high-sealing combined truck oil seal according to claim 1, characterized in that: The light contact mud and water lip (1e) and the mud and water lip 1 (1f) are both arranged tilted outward, and the mud and water lip 2 (1g) is arranged tilted inward.

6. The high-sealing combined truck oil seal according to claim 5, characterized in that: The length of the mud water lip (1f) is greater than the length of the light contact mud water lip (1e).

7. The high-sealing combined truck oil seal according to claim 1, characterized in that: The rubber body also has an anti-seizing convex point (1d) that matches the oil slinger skeleton (2a), and the anti-seizing convex point (1d) is located between the water retaining lip (1c) and the light mud and water contact lip (1e).

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