CN210196448U - Semi-axis seal structure - Google Patents
Semi-axis seal structure Download PDFInfo
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- CN210196448U CN210196448U CN201920985204.3U CN201920985204U CN210196448U CN 210196448 U CN210196448 U CN 210196448U CN 201920985204 U CN201920985204 U CN 201920985204U CN 210196448 U CN210196448 U CN 210196448U
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- shaft
- half shaft
- oil seal
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Abstract
The utility model relates to a half shaft sealing structure, which is composed of a half shaft, a bolt, a half shaft oil seal, a wheel hub and a shaft head, and is arranged in a round hole of the shaft head by adopting a stepped annular half shaft oil seal, thereby reducing the cost and the weight of the shaft head relative to the original half shaft oil seal structure arranged on the wheel hub; because the half shaft oil seal adopts a stepped annular structure, the lip avoids a spline shaft of the half shaft, and the half shaft oil seal is prevented from being damaged; the hub does not need to be provided with an oil seal mounting hole, so that the processing cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of the car axle, concretely relates to semi-axis seal structure is applied to the rear axle assembly.
Background
In a domestic automobile axle, a half shaft oil seal is arranged in a central circular hole of a wheel hub, and a sealing lip of the half shaft oil seal is matched with the circular shaft diameter of a shaft head; the structure needs to process the mounting hole of the half-shaft oil seal on the wheel hub, and the processing cost is increased.
Disclosure of Invention
The utility model aims to solve the problems that in the existing automobile axle, because the half shaft oil seal is arranged on the wheel hub and the shaft diameter of the shaft head is matched with the lip of the half shaft oil seal, the weight of the shaft head is increased, the material cost and the processing cost are increased, and the axial size is increased; the problem of the processing cost increase of wheel hub etc. provides a half axle seal structure, reduce cost and weight.
The utility model aims at realizing through the following technical scheme:
a half shaft sealing structure is composed of a half shaft 1, a bolt 2, a half shaft oil seal 3, a hub 4 and a shaft head 5.
The shaft diameter of the half shaft oil seal 3 is pressed into a round hole of the shaft head 5, and a circular bead of the half shaft oil seal 3 is attached to the end face of the shaft head 5; the rod part of the half shaft 1 is arranged in a round hole of the shaft head 5, the flange distribution holes of the half shaft 1 are aligned with the distribution threaded holes of the hub 4, the end surfaces of the flange distribution holes are attached, and the sealing shaft diameter of the half shaft 1 is matched with the sealing lip of the half shaft oil seal 3; the bolts 2 penetrate through the flange distribution holes of the half shaft 1, are screwed into the distribution flange holes of the hub 4 and are screwed tightly.
Furthermore, the half shaft oil seal 3 adopts a stepped annular structure, and the small shaft diameter of the stepped ring is matched with the shaft head 5; the shoulder plane of the ladder ring is matched with the shaft head 5; the large-shaft-diameter end face of the stepped ring is provided with a sealing lip structure and is matched with the shaft diameter of the half shaft 1; the large-diameter end face of the stepped ring is provided with a dustproof lip structure which is matched with the fillet of the half shaft 1.
Further, the half shaft 1 is in a flange distribution hole structure and is connected with the hub 4 through bolts; and a circular shaft diameter and a circular bead structure are adopted and are respectively matched with a sealing lip and a dustproof lip of the half shaft oil seal.
Furthermore, one end of the shaft head 5 adopts a circular hole structure and is used for installing the half shaft oil seal 3.
Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses half shaft seal structure, through adopting annular semi-axis oil blanket of ladder, install in the round hole of spindle nose, for the semi-axis oil blanket structure of original installation on wheel hub, reduced the cost and the weight of spindle nose; because the half shaft oil seal adopts a stepped annular structure, the lip avoids a spline shaft of the half shaft, and the half shaft oil seal is prevented from being damaged; the hub does not need to be provided with an oil seal mounting hole, so that the processing cost is reduced.
Drawings
Fig. 1a is a front view of a rear axle assembly, which is an application position of the half-axle sealing structure according to the present invention;
FIG. 1b is a partial view of a rear axle assembly, which is an application position of the half-axle seal structure according to the present invention;
FIG. 2 is a cross-sectional view of the half shaft oil seal of the half shaft sealing structure of the present invention;
FIG. 3 is a half-axis view of a half-axis sealing structure according to the present invention;
fig. 4 is a view of the axle head of the half axle sealing structure of the present invention.
In the figure, 1 is a half shaft 2, a bolt 3, a half shaft oil seal 4, a wheel hub 5 and a shaft head.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in FIG. 1, in the semi-axis sealing structure of the present invention, the axial diameter of the semi-axis oil seal 3 is pressed into the round hole of the axle head 5, and the shoulder of the semi-axis oil seal 3 is attached to the end surface of the axle head 5; the rod part of the half shaft 1 is arranged in a round hole of the shaft head 5, the flange distribution holes of the half shaft 1 are aligned with the distribution threaded holes of the hub 4, the end surfaces of the flange distribution holes are attached, and the sealing shaft diameter of the half shaft 1 is matched with the sealing lip of the half shaft oil seal 3; the bolts 2 penetrate through the flange distribution holes of the half shaft 1, are screwed into the distribution flange holes of the hub 4 and are screwed tightly.
As shown in FIG. 2, the novel half shaft oil seal adopts a stepped annular structure, and the small shaft diameter of the stepped ring is matched with a shaft head 5; the shoulder plane of the ladder ring is matched with the shaft head 5; the large-shaft-diameter end face of the stepped ring is provided with a sealing lip structure and is matched with the shaft diameter of the half shaft 1; the large-diameter end face of the stepped ring is provided with a dustproof lip structure which is matched with the fillet of the half shaft 1.
As shown in fig. 3, the novel half shaft is in a flange distribution hole structure and is connected with a hub 4 through bolts; and a circular shaft diameter and a circular bead structure are adopted and are respectively matched with a sealing lip and a dustproof lip of the half shaft oil seal.
As shown in fig. 4, one end of the novel shaft head is in a round hole structure and is used for installing the half shaft oil seal 3.
Claims (4)
1. A half shaft seal structure is characterized in that: the device is composed of a half shaft (1), a bolt (2), a half shaft oil seal (3), a wheel hub (4) and a shaft head (5); the shaft diameter of the half shaft oil seal (3) is pressed into a round hole of the shaft head (5), and a circular bead of the half shaft oil seal (3) is attached to the end surface of the shaft head (5); the rod part of the half shaft (1) is arranged in a round hole of the shaft head (5), flange distribution holes of the half shaft (1) are aligned with distribution threaded holes of the wheel hub (4), the end faces are attached, and the sealing shaft diameter of the half shaft (1) is matched with a sealing lip of the half shaft oil seal (3); the bolts (2) penetrate through the flange distribution holes of the half shaft (1), are screwed into the distribution flange holes of the wheel hub (4) and are fixed.
2. The half-shaft seal structure according to claim 1, characterized in that: the half shaft oil seal (3) adopts a stepped annular structure, and the small shaft diameter of the stepped ring is matched with the shaft head (5); the shoulder plane of the ladder ring is matched with the shaft head (5); the large-shaft-diameter end face of the stepped ring is provided with a sealing lip structure which is matched with the shaft diameter of the half shaft (1); the large-diameter end face of the stepped ring is provided with a dustproof lip structure which is matched with the fillet of the half shaft (1).
3. The half-shaft seal structure according to claim 1, characterized in that: the half shaft (1) is in a flange distribution hole structure and is connected with the hub (4) through bolts; and a circular shaft diameter and a circular bead structure are adopted and are respectively matched with a sealing lip and a dustproof lip of the half shaft oil seal.
4. The half-shaft seal structure according to claim 1, characterized in that: one end of the shaft head (5) adopts a round hole structure and is used for installing the half shaft oil seal (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985204.3U CN210196448U (en) | 2019-06-27 | 2019-06-27 | Semi-axis seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985204.3U CN210196448U (en) | 2019-06-27 | 2019-06-27 | Semi-axis seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210196448U true CN210196448U (en) | 2020-03-27 |
Family
ID=69869473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920985204.3U Active CN210196448U (en) | 2019-06-27 | 2019-06-27 | Semi-axis seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210196448U (en) |
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2019
- 2019-06-27 CN CN201920985204.3U patent/CN210196448U/en active Active
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