CN216507738U - Oil seal seat ring structure and vehicle - Google Patents

Abstract

The application provides an oil blanket seat circle structure and vehicle, oil blanket seat circle structure includes: an axle tube; the hub is sleeved on the shaft tube; the bearing is sleeved on the shaft tube and is positioned between the shaft tube and the hub; the oil seal seat ring is sleeved on the shaft tube and is positioned on one side of the bearing; the oil seal is arranged between the oil seal seat ring and the hub and is used for sealing the oil seal seat ring and the hub; and the dust cover is positioned on one side of the oil seal, which is far away from the bearing, and is sleeved on the oil seal seat ring and covers the oil seal. This application is through increasing the dust cover, can prevent that silt from piling up in the lip department of oil blanket, reduces the rate of wear of oil blanket, improves the life of oil blanket.

Description

Oil seal seat ring structure and vehicle

Technical Field

The application relates to the technical field of oil sealing, in particular to an oil seal seat ring structure and a vehicle.

Background

With the continuous improvement of the environmental protection requirement, the mixer truck can be cleaned by the water tank when leaving the construction site. In the cleaning process, silt is accumulated at the lip of the oil seal at the wheel end, so that the abrasion speed of the lip is increased, and the service life of the oil seal is obviously shortened. So the oil leakage condition at the oil seal of the wheel end is frequent.

Existing seal arrangements often use a piston seal groove pattern for radial seals. During assembly, the chamfer at the shaft tube can scratch the O-shaped ring, so that the sealing effect of the O-shaped ring is poor, the compression ratio calculation of the O-shaped ring is controlled by two variables, and silt cannot be prevented from being accumulated at the lip of the oil seal at the wheel end.

SUMMERY OF THE UTILITY MODEL

The present application is directed to solving at least one of the above technical problems.

To this end, a first object of the present application is to provide an oil seal race structure.

A second object of the present application is to provide a vehicle.

To achieve the first object of the present application, the technical solution of the first aspect of the present application provides an oil seal race structure, including: an axle tube; the hub is sleeved on the shaft tube; the bearing is sleeved on the shaft tube and is positioned between the shaft tube and the hub; the oil seal seat ring is sleeved on the shaft tube and is positioned on one side of the bearing; the oil seal is arranged between the oil seal seat ring and the wheel hub and is used for sealing the oil seal seat ring and the wheel hub; and the dust cover is positioned on one side of the oil seal, which is far away from the bearing, and is sleeved on the oil seal seat ring and covers the oil seal.

According to the oil blanket seat circle structure that this application provided, including central siphon, wheel hub, bearing, oil blanket seat circle, oil blanket and dust cover. Wherein, the central siphon is installed in the wheel hub, and the bearing is used for supporting wheel hub relative central siphon and rotates. The oil seal seat ring is fixedly arranged on the shaft tube, lubricating oil is arranged in the wheel hub to lubricate the bearing, and the oil seal is arranged between the oil seal seat ring and the wheel hub and used for sealing the oil seal seat ring and the wheel hub to prevent the lubricating oil from leaking. The dust cover is positioned on one side of the oil seal, which is far away from the bearing, is connected with the oil seal seat ring and covers the oil seal. Through setting up the dust cover, can prevent that silt from piling up in oil blanket lip department to reduce the rate of wear of oil blanket, improve the life of oil blanket, avoid wheel end oil blanket department oil leak condition frequent.

In addition, the technical scheme provided by the application can also have the following additional technical characteristics:

among the above-mentioned technical scheme, dust cover and oil blanket seat circle interference fit.

In the technical scheme, the dust cover is in interference fit with the oil seal seat ring, so that the dust cover is fixed on the oil seal seat ring, the structure is simple, and the installation is easy.

In the technical scheme, the dust cover comprises a body and a first bent part, wherein the first bent part is arranged on the inner ring of the body and is positioned on one side of the body close to the oil seal; the first bending part is in interference fit with the oil seal seat ring to fix the oil seal seat ring and the dust cover.

In this technical scheme, the dust cover includes body and first kink, and first kink is located on the inner race of body, through first kink and oil blanket seat circle interference fit, can fix oil blanket seat circle and dust cover.

In the above technical solution, the dust cover further includes a second bending portion, and the second bending portion is disposed on the outer ring of the body and located on one side of the body close to the oil seal; the second kink sets up with the surface interval of wheel hub.

In this technical scheme, the dust cover still includes the second kink, and the second kink is located on the outer lane of body to set up with wheel hub's surface interval, thereby form labyrinth structure between dust cover and wheel hub, oil blanket, prevent that silt from getting into, avoid the vehicle cleaning process, silt is piled up in wheel end oil blanket lip department.

Among the above-mentioned technical scheme, oil blanket seat circle structure still includes: and the sealing element is used for sealing the oil seal seat ring and the shaft tube.

In this technical scheme, oil blanket seat circle structure still includes the sealing member, and the sealing member is used for sealed oil blanket seat circle and central siphon, prevents that lubricating oil from leaking.

In the technical scheme, the shaft tube is provided with a step part; one end of the oil seal seat ring is abutted against the bearing, and the other end of the oil seal seat ring is abutted against the step part.

In this technical scheme, the central siphon is equipped with the step portion, and the one end and the bearing of oil blanket seat circle offset, and the other end offsets with the step portion, offsets with the oil blanket seat circle through the step portion, realizes that the axial of oil blanket seat circle is spacing.

Among the above-mentioned technical scheme, the sealing member includes O shape circle, and O shape circle is located between oil blanket seat circle and the step portion.

In this technical scheme, the sealing member can be the O shape circle, and the O shape circle is located between oil blanket seat circle and the step portion, exerts pressure to the O shape circle through the cooperation of the terminal surface between step portion and the oil blanket seat circle, and O shape circle compression deformation carries out axial seal. Because the O-shaped ring is arranged between the oil seal seat ring and the step part, when the O-shaped ring is assembled, compared with radial sealing, the O-shaped ring can be prevented from being scratched by the chamfer angle of the shaft tube, the compression ratio of the O-shaped ring is influenced by one size of the oil seal seat ring, and the compression ratio of the O-shaped ring is easy to calculate and control.

Among the above-mentioned technical scheme, the one side that the oil blanket seat circle is close to the step portion is equipped with the recess, and the recess is used for placing O shape circle.

In this technical scheme, the one side that the oil blanket seat circle is close to the step portion is equipped with the recess, and the recess is used for installing O shape circle to seal oil blanket seat circle and central siphon.

In the technical scheme, the distance from the bottom to the top of the groove is smaller than the diameter of the O-shaped ring.

In this technical scheme, the distance of recess bottom to top is less than the diameter of O shape circle, lets the O shape circle can receive the pressure that comes from oil blanket seat circle and central siphon, takes place deformation, eliminates the gap between oil blanket seat circle and the central siphon to seal.

According to a second aspect of the present application, there is provided a vehicle including: an axle; the oil seal race structure according to any one of the above first aspects of the present application is provided on an axle.

According to the vehicle provided by the application, the vehicle comprises the axle and the oil-sealed race structure according to any one of the above first aspects of the application, so that the vehicle has all the beneficial effects of the oil-sealed race structure according to any one of the above first aspects of the application, and the details are not repeated.

Additional aspects and advantages of the present application will be set forth in part in the description which follows, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a cross-sectional structural schematic view of an oil seal race configuration according to one embodiment provided herein;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a block diagram schematic of a vehicle according to one embodiment provided herein.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:

10: an oil seal seat ring structure; 110: an axle tube; 120: a hub; 130: a bearing; 140: an oil seal seat ring; 150: oil sealing; 160: a dust cover; 170: an O-shaped ring; 20: a vehicle; 200: an axle.

Detailed Description

In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

Some embodiments provided in accordance with the present application are described below with reference to fig. 1-3.

As shown in fig. 1 and 2, a ring structure 10 for oil-sealed race according to an embodiment of the present application includes a shaft tube 110, a hub 120, a bearing 130, a ring 140 for oil-sealed race, an oil seal 150, and a dust cover 160. Specifically, the hub 120 is disposed on the shaft tube 110, and the bearing 130 is disposed on the shaft tube 110 and located between the shaft tube 110 and the hub 120. The oil seal retainer 140 is sleeved on the shaft tube 110 and is located at one side of the bearing 130. An oil seal 150 is provided between the oil seal race 140 and the hub 120, the oil seal 150 being for sealing the oil seal race 140 and the hub 120. The dust cover 160 is located on the side of the oil seal 150 away from the bearing 130, and the dust cover 160 is sleeved on the oil seal race 140 and covers the oil seal 150.

The oil-sealed race structure 10 provided according to the present embodiment includes a shaft tube 110, a hub 120, a bearing 130, an oil-sealed race 140, an oil seal 150, and a dust cover 160. Wherein the shaft tube 110 is installed in the hub 120 and the bearing 130 is used to support the hub 120 to rotate relative to the shaft tube 110. An oil-sealed race 140 is fixedly disposed on the shaft tube 110, and a lubricant is provided in the hub 120 for lubricating the bearing 130, and an oil seal 150 is provided between the oil-sealed race 140 and the hub 120 for sealing the oil-sealed race 140 and the hub 120 to prevent leakage of the lubricant. The dust cover 160 is located on the side of the oil seal 150 remote from the bearing 130, is attached to the oil seal race 140, and covers the oil seal 150. Through setting up dust cover 160, can prevent that silt from piling up in oil blanket 150's lip department to reduce oil blanket 150's rate of wear, improve oil blanket 150's life, avoid wheel end oil blanket 150 department oil leak.

The dust cover 160 is in interference fit with the oil seal seat ring 140, so that the dust cover 160 is fixed on the oil seal seat ring 140, and the dust cover is simple in structure and easy to mount.

Further, the dust cover 160 includes a main body, a first bending portion and a second bending portion, the first bending portion is disposed on the inner ring of the main body, the second bending portion is disposed on the outer ring of the main body, and the first bending portion and the second bending portion are both disposed on one side of the main body close to the oil seal 150. The first bent portion is in interference fit with the oil sealed seat ring 140, and can fix the oil sealed seat ring 140 and the dust cover 160. The second kink sets up with wheel hub 120's surface interval, forms labyrinth structure between dust cover 160 and wheel hub 120, oil blanket 150 to prevent that silt from getting into, avoid the vehicle 20 cleaning process, silt is piled up in wheel end oil blanket 150's lip department.

In the above embodiment, the shaft tube 110 is provided with a stepped portion, and one end of the oil-sealed race 140 abuts against the bearing 130 and the other end abuts against the stepped portion. During assembly, the stepped part abuts against the oil seal seat ring 140, so that the axial limit of the oil seal seat ring 140 is realized.

In some embodiments, the oil sealed race arrangement 10 further includes a seal for sealing the oil sealed race 140 to the shaft tube 110 against leakage of lubricating oil. The sealing element can be an O-shaped ring 170, the O-shaped ring 170 is arranged between the oil seal seat ring 140 and the step part, pressure is applied to the O-shaped ring 170 through the matching of the end face between the step part and the oil seal seat ring 140, and the O-shaped ring 170 is compressed and deformed to perform axial sealing. Because the O-ring 170 is disposed between the oil seal seat 140 and the step portion, during assembly, compared with radial sealing, the O-ring 170 can be prevented from being scratched by the chamfer of the shaft tube 110, and the compression ratio of the O-ring 170 is affected by one dimension of the oil seal seat 140, which is easy to calculate and control the compression ratio of the O-ring 170.

Further, a groove is formed on a surface of the oil seal race 140 near the stepped portion, and the groove is used to mount the O-ring 170, thereby sealing the oil seal race 140 and the shaft tube 110. The distance from the bottom to the top of the groove is less than the diameter of the O-ring 170, allowing the O-ring 170 to be deformed by pressure from the oil-sealed seat ring 140 and the shaft tube 110, eliminating the gap between the oil-sealed seat ring 140 and the shaft tube 110, and sealing.

As shown in fig. 3, a vehicle 20 according to an embodiment of the present application includes an axle 200 and the oil-sealed race structure 10 according to any of the embodiments, where the oil-sealed race structure 10 is disposed on the axle 200.

According to the embodiment of the present application, a vehicle 20 is provided, which includes an axle 200 and the oil-sealed race structure 10 of any of the above embodiments, and thus has all the advantages of the oil-sealed race structure 10 of any of the above embodiments, and the description thereof is omitted. The oil seal seat ring structure 10 is arranged on the axle 200 and used for preventing silt from accumulating at the lip of the oil seal 150 and avoiding frequent occurrence of oil leakage at the oil seal 150. The vehicle 20 may be a mixer truck, among others.

As shown in fig. 1 and 2, the oil-sealed race structure 10 according to one embodiment of the present application includes a shaft tube 110, a hub 120, a bearing 130, an oil-sealed race 140, an oil seal 150, a dust cover 160, and an O-ring 170.

During assembly, the dust cover 160 is firstly pressed into the oil-sealed seat ring 140, then the O-shaped ring 170 is assembled on the end face of the oil-sealed seat ring 140, and then the oil-sealed seat ring 140 is pressed into the shaft tube 110 and is axially limited by the step part of the shaft tube 110, and the O-shaped ring 170 is compressed and deformed for sealing.

To sum up, the beneficial effect of this application embodiment is:

1. and a dust cover 160 is additionally arranged, and the oil seal seat ring 140 is pressed in an interference manner, so that sediment is prevented from being accumulated at the lip of the oil seal 150.

2. With the axial seal type, i.e., the O-ring 170 is added to the end face of the oil seal race 140, the O-ring 170 is not scratched at the risk of being scratched by parts when assembled, and the compression ratio of the O-ring 170 is mainly affected by only one dimension.

In this application, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. An oil seal race structure, comprising:

a shaft tube (110);

the hub (120), the hub (120) is sleeved on the axle tube (110);

the bearing (130), the said bearing (130) is fitted over the said axle tube (110), and locate between said axle tube (110) and said wheel nave (120);

the oil seal seat ring (140), the oil seal seat ring (140) is sleeved on the shaft tube (110) and is positioned on one side of the bearing (130);

the oil seal (150) is arranged between the oil seal seat ring (140) and the hub (120), and the oil seal (150) is used for sealing the oil seal seat ring (140) and the hub (120);

the dust cover (160), the dust cover (160) is located the oil blanket (150) is kept away from one side of bearing (130), the cover of dust cover (160) is established on oil blanket race (140), and cover oil blanket (150).

2. An oil sealed race structure according to claim 1,

the dust cover (160) is in interference fit with the oil seal seat ring (140).

3. An oil sealed race structure according to claim 2,

the dust cover (160) comprises a body and a first bent part, and the first bent part is arranged on the inner ring of the body and is positioned on one side of the body close to the oil seal (150);

the first bending part is in interference fit with the oil seal seat ring (140) and fixes the oil seal seat ring (140) and the dust cover (160).

4. An oil sealed race structure according to claim 3,

the dust cover (160) further comprises a second bent part, and the second bent part is arranged on the outer ring of the body and is positioned on one side of the body close to the oil seal (150);

the second bending part and the outer surface of the hub (120) are arranged at intervals.

5. An oil sealed race structure according to any one of claims 1 to 4, further comprising:

a seal for sealing the oil-sealed seat ring (140) with the shaft tube (110).

6. An oil sealed race structure according to claim 5,

the shaft tube (110) is provided with a step part;

one end of the oil seal seat ring (140) is abutted against the bearing (130), and the other end of the oil seal seat ring (140) is abutted against the step part.

7. An oil sealed race structure according to claim 6,

the seal includes an O-ring (170), the O-ring (170) being disposed between the oil seal race (140) and the step.

8. An oil sealed race structure according to claim 7,

and one surface of the oil seal seat ring (140) close to the step part is provided with a groove, and the groove is used for placing the O-shaped ring (170).

9. An oil sealed race structure according to claim 8,

the distance from the bottom to the top of the groove is less than the diameter of the O-ring (170).

10. A vehicle, characterized by comprising:

an axle (200);

the oil-sealed race structure according to any one of claims 1 to 9, provided on the vehicle axle (200).

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