Front oil seal assembly, engine assembly, and vehicle

Abstract

The utility model relates to a kind of front oil seal sealing assembly, engine assembly and vehicle, and the front oil seal sealing assembly includes: crankshaft, transmission wheel and front oil seal, the transmission wheel includes hub and rustproof part, the hub is connected with the crankshaft, the rustproof part is located on the hub, the outer ring of the front oil seal is used to cooperate with engine cylinder or timing cover shell, the inner ring of the front oil seal is in abutment with the outer wall surface of the rustproof part.The structure design of the front oil seal sealing assembly of the utility model is reasonable, the probability that the water from outside enters into engine by front oil seal can be reduced, and the waterproof effect is better.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to a front oil seal assembly, an engine assembly, and a vehicle. Background Technology

[0002] During driving, road conditions and rainfall can affect the engine, potentially causing water ingress when the vehicle travels to low-lying areas. In some cases, a poorly designed front oil seal can allow residual water to enter the engine under pressure after the engine has been submerged in water, ultimately leading to engine failure. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of this utility model propose a front oil seal sealing assembly. The front oil seal sealing assembly has a reasonable structural design, which can reduce the probability of external water entering the engine through the front oil seal and has a good waterproof effect.

[0005] An embodiment of this utility model also proposes an engine assembly.

[0006] An embodiment of this utility model also proposes a vehicle.

[0007] The front oil seal assembly of this utility model includes: a crankshaft; a drive wheel, the drive wheel including a hub and a rust-proof component, the hub being connected to the crankshaft, the rust-proof component being disposed on the hub; and a front oil seal, the outer ring of the front oil seal being used to cooperate with the engine block or timing cover, the inner ring of the front oil seal abutting against the outer wall surface of the rust-proof component.

[0008] According to the front oil seal assembly of the present invention, when the engine is running, the crankshaft can drive the hub and the anti-rust component to rotate synchronously. Since the inner ring of the front oil seal abuts against the outer wall of the anti-rust component, when the front oil seal position of the engine is exposed to water, the anti-rust component is not prone to rusting. This can avoid the problem of the front oil seal being worn more due to rust particles, thereby reducing the probability of external water entering the engine through the front oil seal and improving the sealing and waterproofing effect of the inner ring position of the front oil seal.

[0009] In some embodiments, the rust-proof component is a stainless steel component.

[0010] In some embodiments, the outer wall surface of the rust-proof component has a rust-proof coating.

[0011] In some embodiments, the hub is provided with an annular groove, the rust-proof component is annular and sleeved in the annular groove, and one axial end of the rust-proof component abuts against the hub.

[0012] In some embodiments, the front oil seal includes an oil seal body, a dustproof lip, and an oil seal lip. The dustproof lip and the oil seal lip are both located on the inner ring of the oil seal body. The dustproof lip is located on the side of the oil seal lip closer to the wheel hub. A sealing groove is formed between the dustproof lip and the oil seal lip, and both the dustproof lip and the oil seal lip abut against the outer wall surface of the rust-proof component.

[0013] In some embodiments, the front oil seal further includes a waterproof layer, which is disposed on the side of the oil seal body near the wheel hub, and the inner ring of the waterproof layer abuts against the anti-rust component.

[0014] In some embodiments, the waterproof layer is a waterproof nonwoven fabric.

[0015] In some embodiments, the transmission wheel further includes an elastic damping ring and an inertia ring, both of which are sleeved on the outer side of the hub, with the elastic damping ring located between the outer wall surface of the hub and the inner wall surface of the inertia ring.

[0016] Another embodiment of the engine assembly of the present invention includes the front oil seal sealing assembly described in any one of the embodiments of the present invention.

[0017] According to the embodiment of the present invention, when the front oil seal of the engine is exposed to water, the anti-rust part is less likely to rust, thereby avoiding the problem of the front oil seal being worn more severely by rust particles, reducing the probability of external water entering the engine through the front oil seal, and improving the sealing and waterproofing effect of the inner ring of the front oil seal.

[0018] Another embodiment of the present invention includes a vehicle comprising a front oil seal assembly or an engine assembly according to an embodiment of the present invention.

[0019] According to the embodiments of the present invention, when the front oil seal of the engine is submerged in water, the anti-rust part is less likely to rust, thereby avoiding the problem of the front oil seal being worn more severely by rust particles. This reduces the probability of external water entering the engine through the front oil seal and improves the sealing and waterproofing effect of the inner ring of the front oil seal. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the front oil seal assembly according to an embodiment of the present invention.

[0021] Figure 2 yes Figure 1 A magnified view of A in the middle.

[0022] Figure 3 This is a partial cross-sectional view of the front oil seal assembly according to another embodiment of the present invention.

[0023] Figure label:

[0024] 1. Crankshaft;

[0025] 2. Drive wheel; 21. Hub; 211. Annular groove; 22. Rust-proof parts; 23. Elastic damping ring; 24. Inertia ring;

[0026] 3. Front oil seal; 31. Oil seal body; 32. Dustproof lip; 33. Oil seal lip; 34. Sealing groove; 35. Waterproof layer; 36. Metal frame; 37. Spring. Detailed Implementation

[0027] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] The following is a reference appendix. Figures 1 to 3 This invention describes a front oil seal assembly, an engine assembly, and a vehicle according to embodiments of the present invention.

[0029] like Figure 1 and Figure 2 As shown, the front oil seal assembly of this utility model embodiment includes: crankshaft 1, drive wheel 2 and front oil seal 3. The drive wheel 2 includes hub 21 and anti-rust component 22. Hub 21 is connected to crankshaft 1. Anti-rust component 22 is disposed on hub 21. The outer ring of front oil seal 3 is used to cooperate with engine block or timing cover. The inner ring of front oil seal 3 abuts against the outer wall surface of anti-rust component 22.

[0030] According to the front oil seal assembly of the present invention, when the engine is running, the crankshaft 1 can drive the hub 21 and the anti-rust component 22 to rotate synchronously. Since the inner ring of the front oil seal 3 abuts against the outer wall of the anti-rust component 22, when the front oil seal 3 of the engine is submerged in water, the anti-rust component 22 is not prone to rusting. This can avoid the problem of the front oil seal 3 being worn more by rust particles, thereby reducing the probability of external water entering the engine through the front oil seal 3 and improving the sealing and waterproofing effect of the inner ring of the front oil seal 3.

[0031] The inventors of this application discovered through research that the contact area between the wheel hub 21 and the inner ring of the front oil seal 3 in related technologies is prone to corrosion after wading through water. Consequently, when the front oil seal 3 rotates relative to the wheel hub 21, the inner ring of the front oil seal 3 (i.e., the lip of the front oil seal 3) is easily rubbed against hard particles after corrosion, causing wear on the front oil seal 3. This leads to a decrease in the sealing and waterproofing effect between the inner ring of the front oil seal 3 and the wheel hub 21. In other words, oil seepage or even leakage is prone to occur at the location between the inner ring of the front oil seal 3 and the wheel hub 21. Furthermore, when the engine has been wading through water, residual water at the location between the inner ring of the front oil seal 3 and the wheel hub 21 can easily enter the engine under the pumping principle, leading to engine malfunction.

[0032] The front oil seal sealing assembly of this utility model, by setting an anti-rust part 22 between the wheel hub 21 and the inner ring of the front oil seal 3, can prevent the problem of rust particles from appearing between the inner ring of the front oil seal 3 and the anti-rust part 22, thereby reducing the friction of the front oil seal 3, reducing the probability of external water entering the engine through the front oil seal 3, and improving the waterproof sealing effect of the front oil seal sealing assembly.

[0033] It is understood that the outer ring of the front oil seal 3 can mate with the engine block or with the timing cover. For example, in the example of this utility model, the timing cover is provided with a mounting hole (not shown), one end of the crankshaft 1 passes through the mounting hole, the outer ring of the front oil seal 3 mates with the inner wall surface of the mounting hole, and the front oil seal 3 is fixed relative to the timing cover.

[0034] Optionally, the rust-proof component 22 is made of stainless steel, for example, it can be made of martensitic stainless steel. It is understood that the material of the rust-proof component 22 is martensitic stainless steel. The front oil seal sealing assembly of this embodiment of the present invention, by designing the rust-proof component 22 as stainless steel, can ensure the structural strength of the rust-proof component 22, while also possessing high toughness and good wear resistance. Furthermore, in a wet environment, the martensitic stainless steel can ensure that it will not rust for a long time, thereby improving the waterproof sealing effect of the front oil seal 3.

[0035] For example, the main components of rust-resistant part 22 (martensitic stainless steel) include elements such as iron, chromium and carbon. Among them, the chromium content is usually between 11.5% and 18%, the carbon content is between 0.1% and 1.2%, and other alloying elements are less than 2% to 3%.

[0036] Among them, the hub 21 can be made of HT250 material to reduce the production cost of the drive wheel 2.

[0037] In another example, the outer wall surface of the rust-proof component 22 has a rust-proof coating. For example, the rust-proof coating is a zinc-based phosphate coating or a manganese-based phosphate coating. This forms a protective layer on the surface of the rust-proof component 22 to prevent corrosion of the outer wall surface, thereby improving the rust-proof effect of the rust-proof component 22.

[0038] Optionally, such as Figure 2 As shown, the hub 21 has an annular groove 211, and the rust-proof part 22 is annular and fitted inside the annular groove 211, with one axial end of the rust-proof part 22 abutting against the hub 21. It can be understood that the rust-proof part 22 is a bushing structure, and it is installed on the annular groove 211 of the hub 21 using an interference fit. Because the rust-proof part 22 is fitted inside the annular groove 211, the annular groove 211 can provide space for the structure of the rust-proof part 22, making the structure of the front oil seal assembly more compact. Furthermore, since one axial end of the rust-proof part 22 abuts against the hub 21, the rust-proof part 22 can be axially positioned, improving the installation and positioning accuracy of the rust-proof part 22.

[0039] In some embodiments, such as Figure 2 and Figure 3 As shown, the front oil seal 3 includes an oil seal body 31, a dust lip 32, and an oil seal lip 33. Both the dust lip 32 and the oil seal lip 33 are located within the inner ring of the oil seal body 31. The dust lip 32 is located on the side of the oil seal lip 33 closest to the wheel hub 21. A sealing groove 34 is formed between the dust lip 32 and the oil seal lip 33, and both the dust lip 32 and the oil seal lip 33 abut against the outer wall surface of the anti-rust component 22. It can be understood that the front oil seal 3 has two sealing structures, the dust lip 32 and the oil seal lip 33, which can prevent oil leakage from the engine through the front oil seal 3 and prevent external water from entering the engine through the front oil seal 3, thereby improving the dustproof, waterproof, and oil-proof performance of the front oil seal 3.

[0040] When the engine is submerged in water, some water will remain in the sealing groove 34. At this time, the engine can be started and run for a period of time. During this time, the water will be drawn into the engine. Under the operation of the engine, the water drawn into the engine can evaporate to reduce the impact of the water on the engine oil.

[0041] Optionally, such as Figure 3 As shown, the front oil seal 3 also includes a waterproof layer 35, which is located on the side of the oil seal body 31 near the wheel hub 21, and the inner ring of the waterproof layer 35 abuts against the anti-rust component 22. The waterproof layer 35 can prevent external water stains from entering the inner side of the dust lip 32, thereby further improving the sealing effect of the front oil seal assembly.

[0042] For example, the waterproof layer 35 is a waterproof non-woven fabric, which can greatly reduce the probability of water entering the front oil seal 3.

[0043] like Figure 2 and Figure 3 As shown, the front oil seal 3 also includes a metal skeleton 36, which is disposed inside the oil seal body 31 to support the oil seal body 31. On the one hand, it can improve the structural strength of the front oil seal 3, and on the other hand, it can make the front oil seal 3 more resistant to deformation and enhance the sealing effect of the front oil seal 3.

[0044] like Figure 2 and Figure 3 As shown, the front oil seal 3 also includes an annular spring 37, which is sleeved on the outer circumferential surface of the oil seal lip 33. The spring 37 can apply pressure to the oil seal lip 33 so that the inner circumferential surface of the oil seal lip 33 is tightly fitted with the anti-rust part 22, thereby further reducing the probability of oil leakage at the oil seal lip 33 and improving the overall sealing effect of the front oil seal 3.

[0045] Optionally, such as Figure 1 As shown, the transmission wheel 2 also includes an elastic damping ring 23 and an inertia ring 24. Both the inertia ring 24 and the elastic damping ring 23 are sleeved on the outer side of the hub 21, and the elastic damping ring 23 is located between the outer wall surface of the hub 21 and the inner wall surface of the inertia ring 24. Because the elastic damping ring 23 is elastic, it dampens the vibration when the transmission wheel 2 rotates, which helps to improve the smoothness of the transmission wheel 2 during rotation.

[0046] For example, the elastic damping ring 23 is made of rubber. The inertia ring 24 can be made of HT250, which facilitates the processing and manufacturing of the transmission wheel 2 and reduces costs.

[0047] like Figure 1 As shown, another embodiment of the engine assembly of the present invention includes the front oil seal sealing assembly of the present invention.

[0048] According to the engine assembly of the present invention, when the front oil seal 3 of the engine is exposed to water, the anti-rust part 22 is less likely to rust, thereby avoiding the problem of the front oil seal 3 being worn more due to rust particles, reducing the probability of external water entering the engine through the front oil seal 3, and improving the sealing and waterproofing effect of the inner ring of the front oil seal 3.

[0049] Another embodiment of the vehicle according to this utility model includes the front oil seal sealing assembly or engine assembly of the present utility model. The technical advantages of the vehicle according to this utility model are the same as those of the front oil seal sealing assembly or engine assembly of the above embodiments, and will not be repeated here.

[0050] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A front oil seal assembly, characterized in that, include: Crankshaft (1); The transmission wheel (2) includes a hub (21) and a rust-proof component (22). The hub (21) is connected to the crankshaft (1), and the rust-proof component (22) is disposed on the hub (21). The front oil seal (3) has an outer ring that is used to mate with the engine block or timing cover, and an inner ring that abuts against the outer wall of the rust-proof part (22).

2. The front oil seal assembly according to claim 1, characterized in that, The rust-proof component (22) is made of stainless steel.

3. The front oil seal assembly according to claim 1, characterized in that, The outer wall surface of the rust-proof component (22) has a rust-proof coating.

4. The front oil seal assembly according to claim 1, characterized in that, The hub (21) is provided with an annular groove (211), and the anti-rust part (22) is annular and sleeved in the annular groove (211). One end of the anti-rust part (22) in the axial direction abuts against the hub (21).

5. The front oil seal assembly according to any one of claims 1-4, characterized in that, The front oil seal (3) includes an oil seal body (31), a dust lip (32) and an oil seal lip (33). The dust lip (32) and the oil seal lip (33) are both located on the inner ring of the oil seal body (31). The dust lip (32) is located on the side of the oil seal lip (33) near the wheel hub (21). A sealing groove (34) is formed between the dust lip (32) and the oil seal lip (33). The dust lip (32) and the oil seal lip (33) both abut against the outer wall surface of the rust-proof component (22).

6. The front oil seal assembly according to claim 5, characterized in that, The front oil seal (3) also includes a waterproof layer (35), which is located on the side of the oil seal body (31) near the wheel hub (21), and the inner ring of the waterproof layer (35) abuts against the anti-rust component (22).

7. The front oil seal assembly according to claim 6, characterized in that, The waterproof layer (35) is a waterproof non-woven fabric.

8. The front oil seal assembly according to any one of claims 1-4, characterized in that, The transmission wheel (2) also includes an elastic damping ring (23) and an inertia ring (24). The inertia ring (24) and the elastic damping ring (23) are both sleeved on the outside of the hub (21), and the elastic damping ring (23) is located between the outer wall surface of the hub (21) and the inner wall surface of the inertia ring (24).

9. An engine assembly, characterized in that, The front oil seal assembly includes any one of claims 1-8.

10. A vehicle, characterized in that, It includes the front oil seal assembly according to any one of claims 1-8 or the engine assembly according to claim 9.

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