CN212318557U

CN212318557U - Mounting structure of vehicle wheel hub oil seal

Info

Publication number: CN212318557U
Application number: CN202020580324.8U
Authority: CN
Inventors: 吴志强; 吴银初; 鲁启立
Original assignee: Guangdong Fuwa Heavy Industry Co Ltd
Current assignee: Guangdong Fuwa Heavy Industry Co Ltd
Priority date: 2020-04-18
Filing date: 2020-04-18
Publication date: 2021-01-08
Anticipated expiration: 2030-04-18

Abstract

Mounting structure of vehicle wheel hub oil blanket, including wheel hub, the axletree, the inner bearing, the oil blanket, the inner bearing is installed in wheel hub, and the outer lane of inner bearing and wheel hub's internal surface tight fit, the oil blanket is including the oil blanket inner ring that is close to the inner bearing, and keep away from the oil blanket outer loop of inner bearing, the outer fringe of oil blanket inner ring and wheel hub's internal surface tight fit, be provided with a shaft shoulder on the axletree, the terminal surface that this shaft shoulder is close to the inner bearing forms first spacing terminal surface, the one end that the inner circle of inner bearing is close to the shaft shoulder forms the spacing terminal surface of second, the spacing terminal surface of this second and the laminating of first spacing terminal surface, the inner edge of oil blanket outer loop and the surface tight fit of shaft shoulder, and the one end. The utility model discloses the clearance of control oil blanket inner ring that can be accurate and oil blanket outer loop can prevent again simultaneously that lubricating oil from leaking from the oil blanket, in addition, owing to arrange the oil blanket outer loop in on the axletree for axletree and wheel hub's installation becomes simple and convenient.

Description

Mounting structure of vehicle wheel hub oil seal

Technical Field

The utility model relates to the technical field of vehicles, concretely relates to mounting structure of wheel hub oil blanket.

Background

The hub of the vehicle is usually matched with an axle through an inner bearing and an outer bearing, a hub oil seal is usually required to be configured on the inner side of the inner bearing to prevent lubricating oil from leaking, the hub oil seal is arranged between the hub and the axle, in general, when the axle is assembled with the hub, the bearing and the hub oil seal are embedded into the hub, then the axle is clamped into the oil seal and the bearing, in the process of clamping the axle, a larger friction force is generated between the axle and an outer ring of the oil seal, the outer ring of the oil seal moves towards the direction close to an inner ring of the oil seal along the axial direction through the friction force, so that the gap between the outer ring of the oil seal and the inner ring of the oil seal is reduced, and even the inner; in order to solve the problem, some wheel hub oil seals are when packing into wheel hub, predict the drunkenness displacement of oil blanket outer loop in advance, make oil blanket outer loop and oil blanket inner ring form a great clearance between the axletree of packing into, after the axletree is gone into to the card, through the extrusion of axletree to the oil blanket outer loop, in order to reduce the clearance of oil blanket outer loop and oil blanket inner ring, make this clearance satisfy the assembly requirement, this kind of mounting means is not accurate enough to the control of the clearance size between oil blanket inner ring and the oil blanket outer loop, the condition of excessive extrusion still can exist in some times, the clearance of oil blanket inner loop and oil blanket outer loop is great, oil blanket outer loop and oil blanket inner ring installation are not in place.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a not enough to prior art, the utility model aims at providing a mounting structure of vehicle wheel hub oil blanket, its installation is simple and convenient, and can the clearance of accurate control oil blanket inner ring and oil blanket outer loop.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

mounting structure of vehicle wheel hub oil blanket, including wheel hub, the axletree, inner bearing and oil blanket, inner bearing installs in wheel hub, and inner bearing's outer lane and wheel hub's internal surface tight fit, the oil blanket is including the oil blanket inner ring that is close to inner bearing, and keep away from inner bearing's oil blanket outer loop, the outer fringe of oil blanket inner ring and wheel hub's internal surface tight fit, be provided with a shaft shoulder on the axletree, this shaft shoulder is close to inner bearing's terminal surface and forms first spacing terminal surface, the one end that inner bearing's inner circle is close to the shaft shoulder forms the spacing terminal surface of second, the spacing terminal surface of this second and the laminating of first spacing terminal surface, the outer edge of oil blanket outer loop and the surface tight fit of shaft shoulder, and the one end that the inner edge of.

The cross section of the oil seal outer ring is C-shaped, the oil seal outer ring comprises a web plate, an outer wing plate bent towards the inner bearing from the outer edge of the web plate, and an inner wing plate bent towards the inner bearing from the inner edge of the web plate, wherein one end, far away from the web plate, of the inner wing plate is flush with the first limiting end face and abuts against the second limiting end face.

A gap is formed between one end of the outer wing plate, which is far away from the web plate, and the inner ring of the oil seal.

The beneficial effects of the utility model reside in that:

the utility model discloses the clearance of control oil blanket inner ring that can be accurate and oil blanket outer loop avoids oil blanket inner ring and oil blanket outer loop to produce great frictional force because of excessive extrusion, can prevent again simultaneously that lubricating oil from oil blanket leakage, in addition, owing to arrange the oil blanket outer loop in on the axletree for axletree and wheel hub's installation becomes simple and convenient.

Drawings

Fig. 1 is a schematic structural view of the present invention;

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

fig. 3 is an installation diagram of the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 and 2, for the mounting structure of a vehicle wheel hub oil seal of the present invention, it includes a wheel hub 20, an axle 10, an inner bearing 30 and an oil seal 40, an inner bearing mounting cavity is provided in the wheel hub 20, the inner bearing 30 is clamped in the inner bearing mounting cavity, the outer ring of the inner bearing 30 is tightly fitted with the inner surface of the wheel hub, the oil seal 40 is located inside the inner bearing 30, the oil seal 40 includes an oil seal inner ring 42 close to the inner bearing 30 and an oil seal outer ring 41 far from the inner bearing 30, the outer edge of the oil seal inner ring 42 is tightly fitted with the inner surface of the wheel hub 20, a shaft shoulder 11 is provided on the axle 10, the end surface of the shaft shoulder 11 close to the inner bearing 30 forms a first limit end surface 12, the end surface of the outer ring 31 of the inner bearing 30 close to the shaft shoulder 11 forms a second limit end surface 311, the first limit end surface 12 is attached to the second limit end surface 311, the inner edge of the oil seal outer ring 41 is tightly fitted to the outer surface of the shoulder 11, and the end of the inner edge of the oil seal outer ring 41 near the inner bearing 31 is flush with the first limit end surface 12.

Referring to fig. 3, when the above structure of the present invention is installed, the inner bearing 30 and the oil seal inner ring 42 are sequentially clamped into the wheel hub 20, the oil seal outer ring 42 is sleeved on the shaft shoulder 11, so that one end of the inner edge of the oil seal outer ring 42 close to the inner bearing 31 is flush with the first limiting end surface 12, then the axle 10 is inserted into the wheel hub 20 from the inner side of the wheel hub 20, the oil seal outer ring 42 moves toward the inside of the wheel hub 20 along with the axle 10, when the first limiting end surface 12 on the shaft shoulder 11 abuts against and matches with the second limiting end surface 311 on the inner bearing 30, the oil seal outer ring 41 and the oil seal inner ring 42 are installed in place, when the oil seal outer ring 41 is in the state of being installed in place, the extrusion force is continuously applied to the axle 10, due to the limiting effect of the first limiting end surface 12 and the second limiting end surface 311, the oil seal outer ring 41 cannot continuously move along the axial direction of the wheel hub, therefore, excessive extrusion of the outer ring 41 of the oil seal and the inner ring 42 of the oil seal is avoided, so long as the installation sizes of the inner ring 42 of the oil seal and the hub 20 of the oil seal are accurate enough, the gap between the inner ring 42 of the oil seal and the outer ring 41 of the oil seal can be accurately controlled, the inner ring 42 of the oil seal and the outer ring 41 of the oil seal are prevented from generating large friction force due to excessive extrusion, meanwhile, leakage of lubricating oil from the oil seal 40 can be prevented, and in addition, the outer ring 41 of the oil seal is arranged on the axle 10, so that the installation of the axle and.

The utility model discloses a cross-section of oil blanket outer loop 41 is C shape, and it includes web 411, outer pterygoid lamina 413, interior pterygoid lamina 412, and wherein, outer pterygoid lamina 413 is bent towards interior bearing 30 for the outside edge by web 411 and forms, and interior pterygoid lamina 412 is bent towards interior bearing 30 for the inboard edge by web 411 and forms, and the one end and the first spacing terminal surface 12 parallel and level that web 411 were kept away from to interior pterygoid lamina 413, and the butt is on the spacing terminal surface 311 of second. A gap is formed between one end of the outer wing plate 413 far away from the web 411 and the oil seal inner ring 42, so that the outer edge of the oil seal outer ring 41 is prevented from contacting with the outer edge of the oil seal inner ring 42 while the oil seal inner ring 42 and the oil seal outer ring 41 are fully pressed after being buckled.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some technical features, and these modifications or substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Mounting structure of vehicle wheel hub oil blanket, a serial communication port, including wheel hub, the axletree, inner bearing and oil blanket, inner bearing installs in wheel hub, and inner bearing's outer lane and wheel hub's internal surface tight fit, the oil blanket is including the oil blanket inner ring that is close to inner bearing, and keep away from inner bearing's oil blanket outer loop, the outer fringe of oil blanket inner ring and wheel hub's internal surface tight fit, be provided with a shaft shoulder on the axletree, the terminal surface that this shaft shoulder is close to inner bearing forms first spacing terminal surface, the one end that inner bearing's inner circle is close to the shaft shoulder forms the spacing terminal surface of second, the laminating of the spacing terminal surface of this second and first spacing terminal surface, the inner edge of oil blanket outer loop and the surface tight fit of shaft shoulder, and the one end that the inner edge of.

2. The mounting structure of a vehicle wheel hub oil seal according to claim 1, wherein the outer ring of the oil seal has a C-shaped cross section, and comprises a web, an outer wing plate bent from the outer edge of the web toward the inner bearing, and an inner wing plate bent from the inner edge of the web toward the inner bearing, wherein one end of the inner wing plate, which is far away from the web, is flush with the first limit end face and abuts against the second limit end face.

3. A mounting structure for a vehicle wheel hub oil seal according to claim 2, wherein a gap is formed between an end of the outer wing plate remote from the web and the inner ring of the oil seal.