Wheel edge mechanism and vehicle

Abstract

The utility model provides a wheel side mechanism and a vehicle, and relates to the technical field of vehicle engineering, the wheel side mechanism provided by the utility model comprises a half shaft, an axle housing, a hub housing, a bearing unit and a magnetic attraction device; the half shaft and the hub shell are coaxial and connected; the half shaft penetrates through the axle housing, the axle housing is sleeved with the hub housing, and the bearing unit is installed between the axle housing and the hub housing. The magnetic attraction device is located on the axial outer side of the bearing unit and installed in an inner cavity of the hub shell. The magnetic attraction device can attract metal particles mixed in the lubricating oil in the inner cavity of the hub shell, so that metal dirt is prevented from eroding the bearing unit along with the lubricating oil, and the service life of the bearing unit is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle engineering technical field especially is related to a wheel edge mechanism and vehicle. BACKGROUND

[0002] In the axle system, a plurality of mechanical components directly contact with lubricating oil. During operation, metal debris is inevitably generated due to relative movement and friction between components and mixed into the lubricating oil. When the vehicle is running, the lubricating oil containing metal particles will flow through the oil seal area of the bearing, posing a potential threat to the oil seal and possibly causing damage. If the oil seal is damaged, the contaminated lubricating oil will invade the bearing parts that are originally lubricated with grease, causing abnormal wear of the bearing, thereby shortening its service life, and even causing the bearing to fail. SUMMARY

[0003] The utility model aims at providing a wheel edge mechanism and vehicle to alleviate the technical problem of mixed metal particles eroding the bearing unit in the prior art.

[0004] In a first aspect, the utility model provides a wheel edge mechanism, which comprises a half shaft, an axle housing, a hub shell, a bearing unit and a magnetic attraction device.

[0005] The half shaft is coaxial with the hub shell and connected.

[0006] The half shaft passes through the axle housing, the hub shell is sleeved on the axle housing, and the bearing unit is installed between the axle housing and the hub shell.

[0007] The magnetic attraction device is located on the axial outer side of the bearing unit, and the magnetic attraction device is installed in the inner cavity of the hub shell.

[0008] In combination with the first aspect, the utility model provides a first possible implementation manner of the first aspect, wherein the magnetic attraction device comprises a plurality of magnets, and the plurality of magnets are arranged at intervals along the circumference of the hub shell.

[0009] In combination with the first aspect, the utility model provides a second possible implementation manner of the first aspect, wherein the inner side wall of the hub shell is provided with a groove, and the magnetic attraction device is installed in the groove.

[0010] In combination with the first aspect, the utility model provides a third possible implementation manner of the first aspect, wherein the bearing unit comprises a first oil seal, a bearing and a second oil seal.

[0011] The bearing is sleeved on the axle housing, and the bearing is installed in the hub shell.

[0012] The first oil seal is installed on the axial inner side of the bearing, and the second oil seal is installed on the axial outer side of the bearing.

[0013] With reference to the first aspect, the utility model provides a fourth possible implementation mode of the first aspect, wherein the half shaft comprises a shaft part and a shaft end flange connected to the shaft part.

[0014] The shaft part passes through the axle housing, and the shaft end flange is connected to the hub shell.

[0015] With reference to the fourth possible implementation mode of the first aspect, the utility model provides a fifth possible implementation mode of the first aspect, wherein an axial oil passage is formed between the shaft part and the axle housing, a radial oil passage is formed between the end of the axle housing and the shaft end flange, and an annular cavity is formed between the bearing unit and the shaft end flange.

[0016] The magnetic attraction device is installed in the annular cavity.

[0017] The axial oil passage, the radial oil passage and the annular cavity are sequentially in fluid communication.

[0018] With reference to the fifth possible implementation mode of the first aspect, the utility model provides a sixth possible implementation mode of the first aspect, wherein the shaft end flange has a concave arc surface extending from the axial oil passage to the annular cavity.

[0019] With reference to the fifth possible implementation mode of the first aspect, the utility model provides a seventh possible implementation mode of the first aspect, wherein the shaft end flange is provided with a convex ring part inserted into the hub shell.

[0020] With reference to the first aspect, the utility model provides an eighth possible implementation mode of the first aspect, wherein the axle housing is connected to a shaft head locking nut abutting the axial outer side of the bearing unit.

[0021] The second aspect, the utility model provides a vehicle is equipped with the wheel edge mechanism of first aspect record.

[0022] The utility model discloses the following beneficial effects: the half shaft is coaxial with the hub shell and is connected, the half shaft passes through the axle housing, the hub shell is sleeved with the axle housing, the bearing unit is installed between the axle housing and the hub shell, the magnetic attraction device is located on the axial outer side of the bearing unit, and the magnetic attraction device is installed in the inner cavity of the hub shell, the metal particles mixed in the lubricating oil in the inner cavity of the hub shell can be adsorbed through the magnetic attraction device, and then the metal dirt is prevented from eroding the bearing unit with the lubricating oil, which is beneficial to prolong the service life of the bearing unit.

[0023] In order to make the above objects, features and advantages of the present application more obvious, the following preferred embodiments are described in detail, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the related art, the following will briefly introduce the drawings needed to be used in the specific embodiments or related art descriptions. Obviously, the drawings described in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0025] Figure 1 The cross-sectional view of the wheel edge mechanism provided by the embodiments of the present application is provided.

[0026] Figure 2 The partial enlarged schematic view of the wheel edge mechanism provided by the embodiments of the present application is provided.

[0027] Icon: 001 - half shaft; 101 - shaft part; 102 - shaft end flange; 121 - concave arc surface; 122 - convex ring part; 002 - axle housing; 003 - hub shell; 004 - bearing unit; 401 - first oil seal; 402 - bearing; 403 - second oil seal; 005 - magnetic attraction device; 006 - axial oil way; 007 - radial oil way; 008 - annular cavity; 009 - shaft head locking nut. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be described in detail below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0029] In the description of the present application, it should be pointed out that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. The physical quantities in the formula, such as no separate marking, should be understood as the basic quantities of the international system of units, or the derived quantities derived from the basic quantities by multiplication, division, differentiation or integration and other mathematical operations.

[0030] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, term " install " " link " " connection " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can through the indirect connection of intermediate medium, can be two element internal communication. For ordinary skilled person in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to specific circumstances.

[0031] As Figure 1 The utility model discloses wheel edge mechanism provides, including: half shaft 001, axle housing 002, wheel hub shell 003, bearing unit 004 and magnetic attraction device 005, half shaft 001 with wheel hub shell 003 coaxial and connect, half shaft 001 passes through axle housing 002, wheel hub shell 003 sets up axle housing 002, bearing unit 004 is installed between axle housing 002 and wheel hub shell 003, magnetic attraction device 005 is located the axial outside of bearing unit 004, and magnetic attraction device 005 is installed in the inner chamber of wheel hub shell 003.

[0032] Wherein, axle housing 002 is filled with lubricating oil, and the lubricating oil can be soaked into the inside of wheel hub shell 003.Through the magnetic attraction device 005 can adsorb the metal particles mixed in the lubricating oil, and then avoid the metal particles with the lubricating oil erosion bearing unit 004, it is favorable to prolong the service life of bearing unit 004.

[0033] As Figure 1 And Figure 2 As shown in the utility model embodiment, the magnetic attraction device 005 includes multiple magnets, and the multiple magnets are arranged at intervals along the circumference of the wheel hub shell 003.The multiple magnets can adsorb the metal particles mixed in the lubricating oil inside the wheel hub shell 003 along the circumference of the wheel hub shell 003, improve the probability of the metal particles being adsorbed by the magnetic attraction, and then reduce the risk of the metal particles eroding the bearing unit 004.

[0034] In the embodiment, the inner side wall of the wheel hub shell 003 is provided with a groove, and the magnetic attraction device 005 is installed in the groove, so that the inner side wall of the wheel hub shell 003 and the magnetic attraction device 005 form a relatively smooth circumferential inner surface. On the one hand, it ensures that the lubricating oil can flow smoothly along the circumference inside the wheel hub shell 003. On the other hand, when the wheel hub shell 003 rotates, the lubricating oil and the metal particles mixed therein rotate and use the centrifugal force to make the metal particles deviate to contact the magnetic attraction device 005, so that the metal particles are more easily adsorbed by the magnetic attraction device 005.

[0035] As Figure 1As shown, the bearing unit 004 comprises: a first oil seal 401, a bearing 402 and a second oil seal 403; the bearing 402 is sleeved on the axle housing 002, and the bearing 402 is installed in the hub housing 003; the first oil seal 401 is installed on the axial inner side of the bearing 402, and the second oil seal 403 is installed on the axial outer side of the bearing 402.

[0036] As shown, the bearing 402 can be configured as two oppositely arranged tapered roller bearings, and the outer rings of the two tapered roller bearings abut against the limiting convex ring arranged on the inner wall of the axle housing 002. The first oil seal 401 and the second oil seal 403 jointly realize the sealing of the bearing 402, and the bearing 402 can be lubricated by grease, and the grease is blocked by the first oil seal 401 and the second oil seal 403 to avoid spillover.

[0037] As shown in Figure 1 and Figure 2 As shown, the half shaft 001 comprises: a shaft portion 101 and a shaft end flange 102 connected to the shaft portion 101; the shaft portion 101 passes through the axle housing 002, and the shaft end flange 102 is connected to the hub housing 003.

[0038] Further, the shaft portion 101 and the axle housing 002 form an axial oil passage 006, the end of the axle housing 002 and the shaft end flange 102 form a radial oil passage 007, and the bearing unit 004 and the shaft end flange 102 form an annular cavity 008; the magnetic attraction device 005 is installed in the annular cavity 008; the axial oil passage 006, the radial oil passage 007 and the annular cavity 008 are sequentially and fluidly connected.

[0039] The lubricating oil can flow from the axial oil passage 006 to the radial oil passage 007, and then into the annular cavity 008. The metal particles mixed in the lubricating oil can be adsorbed by the magnetic attraction device 005, thereby avoiding the metal particles suspended in the annular cavity 008 and corroding the second oil seal 403 of the bearing unit 004.

[0040] Further, the shaft end flange 102 has a concave arc surface 121 extending from the axial oil passage 006 to the annular cavity 008. The lubricating oil flowing from the axial oil passage 006 into the radial oil passage 007 can be turned back along the concave arc surface 121 and flow into the annular cavity 008, and the concave arc surface 121 is used to guide the lubricating oil, thereby reducing the impact of the lubricating oil on the shaft end flange 102.

[0041] In an optional embodiment, the shaft end flange 102 is provided with a convex ring portion 122 inserted into the hub housing 003, and the convex ring portion 122 is gap-fitted with the hub housing 003, which not only can make the half shaft 001 and the hub housing 003 accurately aligned, but also can improve the sealing effect of the shaft end flange 102 on the end of the hub housing 003.

[0042] In an optional embodiment, the axle housing 002 is connected with a shaft head locking nut 009, which abuts against the axial outer side of the bearing unit 004.

[0043] The shaft head locking nut 009 can abut against the inner ring of the bearing 402 and the second oil seal 403, thereby ensuring the axial positioning stability of the bearing unit 004. In addition, the end of the bearing unit 004 away from the shaft head locking nut 009 can abut against the shaft shoulder provided on the axle housing 002, thereby achieving the axial positioning of the bearing unit 004.

[0044] As shown in Figure 1 The vehicle provided with the wheel edge mechanism as recorded in the above embodiments has the technical advantages of the wheel edge mechanism, and the wheel edge mechanism can be applied to the driving wheel or the steering wheel, and thus will not be described here.

[0045] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A wheel end mechanism, characterized by The application relates to a wheel hub mechanism. The half shaft (001) is coaxial with the hub shell (003) and is connected with the hub shell (003). The half shaft (001) penetrates through the axle housing (002), the hub shell (003) is sleeved on the axle housing (002), and the bearing unit (004) is installed between the axle housing (002) and the hub shell (003). The magnetic attraction device (005) is located on the axial outer side of the bearing unit (004), and the magnetic attraction device (005) is installed in the inner cavity of the hub shell (003). The magnetic attraction device (005) comprises a plurality of magnets which are arranged at intervals along the circumference of the hub shell (003).

2. The wheel-side mechanism according to claim 1, characterized in that, The inner side wall of the hub shell (003) is provided with a groove, and the magnetic attraction device (005) is installed in the groove.

3. The wheel-side mechanism according to claim 1 or 2, characterized in that, The bearing unit (004) comprises a first oil seal (401), a bearing (402) and a second oil seal (403).

4. The wheel-side mechanism according to claim 1, characterized by The bearing (402) is sleeved on the axle housing (002), and the bearing (402) is installed in the hub shell (003). The first oil seal (401) is installed on the axial inner side of the bearing (402), and the second oil seal (403) is installed on the axial outer side of the bearing (402). The half shaft (001) comprises a shaft portion (101) and a shaft end flange (102) connected with the shaft portion (101).

5. The wheel hub mechanism of claim 1, wherein The shaft portion (101) penetrates through the axle housing (002), and the shaft end flange (102) is connected with the hub shell (003). An axial oil passage (006) is formed between the shaft portion (101) and the axle housing (002), a radial oil passage (007) is formed between the end of the axle housing (002) and the shaft end flange (102), and an annular cavity (008) is formed between the bearing unit (004) and the shaft end flange (102).

6. The wheel end mechanism of claim 5, wherein, The magnetic attraction device (005) is installed in the annular cavity (008). The axial oil passage (006), the radial oil passage (007) and the annular cavity (008) are sequentially and fluidly connected. The shaft end flange (102) has a concave arc surface (121) extending from the axial oil passage (006) to the annular cavity (008).

7. The wheel hub mechanism of claim 6, wherein, The shaft end flange (102) is provided with a convex ring portion (122) which is inserted into the hub shell (003).

8. The wheel end mechanism of claim 6, wherein, The axle housing (002) is connected with a shaft head locking nut (009) which abuts against the axial outer side of the bearing unit (004).

9. The wheel hub mechanism of claim 1, wherein, The vehicle is provided with the wheel hub mechanism according to any one of claims 1-9.

10. A vehicle characterized by comprising: ​

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