Ultra-low torque oil slinger combined sealing structure

Abstract

The utility model discloses an ultra-low torque oil slinger combined type sealing structure which comprises a sealing ring framework and an oil slinger framework, the sealing ring framework is provided with a first rubber body, the oil slinger framework is provided with a second rubber body, the first rubber body is sequentially provided with a water retaining brim, a labyrinth retaining brim, a labyrinth lip, a muddy water lip and a non-contact grease lip, and the second rubber body is sequentially provided with a water retaining brim, a labyrinth retaining brim, a labyrinth lip, a muddy water lip and a non-contact grease lip. The oil slinger framework is further provided with a processing layer making contact with a lip opening of a muddy water lip. The second rubber body is provided with a static sealing lip and an oil slinger disengagement preventing point, and a labyrinth type structure is formed among the static sealing lip, the labyrinth blocking eave and the labyrinth lip.

Description

Technical Field

[0001] This utility model belongs to the field of sealing technology and relates to an ultra-low torque oil-throwing ring combined sealing structure. Background Technology

[0002] Bearing seals are primarily used to seal against various greases, lubricants, and external media such as mud and water. During use, due to wear of the sealing lip, the radial pressure of the seal gradually decreases, leading to a decline in its sealing performance. With the rise of fuel-efficient and new energy vehicles, energy conservation, emission reduction, and the driving range of new energy vehicles have received widespread attention. While ensuring that traditional seals provide effective sealing, the pursuit of lower frictional torque is growing. The lower the frictional torque of the seal, the less energy loss in the vehicle, thereby further improving fuel economy and the driving range of new energy vehicles. Therefore, designing an ultra-low torque oil-slinging ring combined sealing structure to reduce its frictional torque is crucial for improving the quality and service life of wheel hub units. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an ultra-low torque oil-slinging ring combined sealing structure.

[0004] To achieve the above objectives, the technical solution of this utility model is: an ultra-low torque oil-slinging ring combined sealing structure, comprising a sealing ring skeleton and an oil-slinging ring skeleton, wherein the sealing ring skeleton has a rubber body one and the oil-slinging ring skeleton has a rubber body two, characterized in that the rubber body one is provided with a water-blocking eave, a labyrinth eave, a labyrinth lip, a mud-water lip and a non-contact grease lip in sequence, and the oil-slinging ring skeleton also has a treatment layer that contacts the lip opening of the mud-water lip; the rubber body two is provided with a static sealing lip and an oil-slinging ring anti-detachment point, and the static sealing lip, the labyrinth eave, and the labyrinth lip form a labyrinth structure.

[0005] The labyrinth lip is arranged obliquely outwards and is L-shaped.

[0006] An oil storage tank is formed between the mud and water lip and the non-grease lip, with the mud and water lip arranged inclined outwards and the non-grease lip arranged inclined inwards.

[0007] The rubber body has a static sealing point one and a static sealing point two at its two ends respectively. The static sealing point one is close to the water-blocking eaves, and the static sealing point two is close to the non-contact grease lip.

[0008] The sealing ring skeleton has a bent portion, and the labyrinth lip, mud lip, and non-grease-contact lip are all arranged at one point on the bent portion.

[0009] The oil-throwing ring skeleton has a second bend, and the static sealing lip is arranged at the second bend.

[0010] By adopting the above technical solution, the beneficial effects of this utility model are:

[0011] This invention employs a combination of a labyrinthine baffle, a labyrinthine lip, and a static sealing lip to construct a complex labyrinth structure, thereby significantly reducing the intrusion of mud and water. Furthermore, the centrifugal force generated by rotation effectively discharges any small amount of mud and water that enters. Combined with the synergistic work of the mud-water lip and the treatment layer, it achieves sealing performance under ultra-low torque, effectively reducing frictional torque and thus reducing vehicle energy consumption. This not only improves fuel economy but also further enhances the range of new energy vehicles. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] In the diagram, 1a is the sealing ring skeleton; 1b is the first rubber body; 1c is the water-retaining eaves; 1d is the first static sealing point; 1e is the labyrinth eaves; 1f is the labyrinth lip; 1g is the mud and water lip; 1h is the non-grease-contact lip; 1i is the second static sealing point; 2a is the oil-slinging ring skeleton; 2b is the second rubber body; 2c is the static sealing lip; 2d is the oil-slinging ring anti-detachment point; 3a is the oil reservoir; and 3b is the treatment layer. Detailed Implementation

[0014] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0015] like Figure 1 As shown, this ultra-low torque oil-slinging ring combined sealing structure includes a sealing ring skeleton 1a and an oil-slinging ring skeleton 2a. The sealing ring skeleton 1a has a rubber body 1b, and the oil-slinging ring skeleton 2a has a rubber body 2b. The rubber body 1b is provided with a water-blocking eave 1c, a labyrinth eave 1e, a labyrinth lip 1f, a mud-water lip 1g, and a non-contact grease lip 1h in sequence. In this embodiment, the water-blocking eave 1c is perpendicular to the axis of the entire sealing structure, while the labyrinth eave 1e is basically parallel to the axis of the entire sealing structure. The oil-slinging ring skeleton 2a also has a treatment layer 3b that contacts the lip of the mud-water lip 1g. The rubber body 2b is provided with a static sealing lip 2c and an oil-slinging ring anti-detachment point 2d, and the static sealing lip 2c, the labyrinth eave 1e, and the labyrinth lip 1f form a labyrinth structure.

[0016] The labyrinthine lip 1f is arranged at an angle facing outwards, and its shape is L-shaped.

[0017] An oil storage tank 3a is formed between the mud-water lip 1g and the non-oil-contact lip 1h. The mud-water lip 1g is arranged inclined outwards, and the non-oil-contact lip 1h is arranged inclined inwards.

[0018] The two ends of the rubber body 1b are respectively provided with static sealing point 1d and static sealing point 1i. Static sealing point 1d is close to the water-blocking eaves 1c, and static sealing point 1i is close to the non-contact grease lip 1h. Static sealing point 1d and static sealing point 1i are static sealing protrusions with interference contact to prevent mud, water and grease from leaking.

[0019] The sealing ring skeleton 1a has a bending part one, and the labyrinth lip 1f, mud and water lip 1g and non-grease contact lip 1h are all arranged at the bending part one; the oil-slinging ring skeleton 2a has a bending part two, and the static sealing lip 2c is arranged at the bending part two, and the static sealing lip 2c is arranged inclined outward.

[0020] In summary, the labyrinth lip 1e, labyrinth lip 1f, and static sealing lip 2c combine to form a meandering labyrinth structure to prevent mud and water intrusion. In practice, the oil storage tank 3a is filled with low-torque grease, and a treatment layer 3b is formed through existing processes. The treatment layer 3b has several pits, into which the low-torque grease enters and is not easily lost, effectively locking in the grease, reducing the coefficient of friction, and thus reducing the torque.

[0021] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0022] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A combined sealing structure with an ultra-low torque oil-slinging ring, comprising a sealing ring skeleton (1a) and an oil-slinging ring skeleton (2a), wherein the sealing ring skeleton (1a) has a first rubber body (1b) and the oil-slinging ring skeleton (2a) has a second rubber body (2b), characterized in that, The first rubber body (1b) is provided with a water-blocking eave (1c), a labyrinth eave (1e), a labyrinth lip (1f), a mud-water lip (1g), and a non-contact grease lip (1h) in sequence. The oil-slinging ring skeleton (2a) is also provided with a treatment layer (3b) that contacts the lip of the mud-water lip (1g). The second rubber body (2b) is provided with a static sealing lip (2c) and an oil-slinging ring anti-detachment point (2d). The static sealing lip (2c), the labyrinth eave (1e), and the labyrinth lip (1f) form a labyrinth structure.

2. A combined oil slinger seal structure of ultra-low torque according to claim 1, characterized in that, The labyrinth lip (1f) is arranged obliquely outwards and is L-shaped.

3. A combined oil slinger seal structure of ultra-low torque according to claim 2, characterized in that, An oil storage tank (3a) is formed between the mud-water lip (1g) and the non-oil-contact lip (1h), with the mud-water lip (1g) arranged inclined outwards and the non-oil-contact lip (1h) arranged inclined inwards.

4. A combined oil slinger and seal structure of the super low torque type according to claim 1 wherein, The rubber body 1 (1b) is provided with a static sealing point 1 (1d) and a static sealing point 2 (1i) at its two ends respectively. The static sealing point 1 (1d) is close to the water-blocking eaves (1c), and the static sealing point 2 (1i) is close to the non-contact grease lip (1h).

5. A combined oil slinger and seal structure of the type described in claim 1 wherein, The sealing ring skeleton (1a) has a bend, and the labyrinth lip (1f), mud lip (1g) and non-grease-contact lip (1h) are all arranged at one point on the bend.

6. An ultra-low torque slinger-combined seal structure according to claim 5, wherein The oil-throwing ring skeleton (2a) has a second bend, and the static sealing lip (2c) is arranged at the second bend.

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