CN209781683U - Oil seal box for automobile hub and hub oil seal assembly - Google Patents
Oil seal box for automobile hub and hub oil seal assembly Download PDFInfo
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- CN209781683U CN209781683U CN201920473891.0U CN201920473891U CN209781683U CN 209781683 U CN209781683 U CN 209781683U CN 201920473891 U CN201920473891 U CN 201920473891U CN 209781683 U CN209781683 U CN 209781683U
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Abstract
The utility model discloses an oil blanket box and wheel hub oil blanket assembly for automobile wheel hub, including the annular circle body, the both ends of annular circle body are equipped with turn-ups and circular disk respectively, and turn-ups and circular disk are parallel to each other, and both all radially outwards extend along the annular circle body, and the internal diameter of annular circle body reduces from the circular disk towards turn-ups direction gradually, makes the hole of annular circle body have the tapering. The utility model has the advantages that: through the tapered setting, vice skeleton circle, main skeleton circle are spacing between the path end of annular ring body and holding ring, can prevent effectively that main and vice skeleton circle from the tip of annular ring body outwards removing, prevent main and vice sealing washer outwards removing promptly to ensure at the in-process of thermal deformation and the jolt vibrations of truck, the sealing washer can not come off from the oil blanket box, guarantees the lubricated reliability in automobile wheel hub position.
Description
Technical Field
The utility model belongs to the technical field of auto-parts, concretely relates to an oil blanket box and wheel hub oil blanket assembly for automobile wheel hub.
Background
The wheel hub oil blanket is the important component part of automobile wheel hub position, can play sealed effect inwards, prevents that the lubricating oil in the bearing from flowing out, can play isolated effect outward, blocks during external silt, dust, aqueous vapor etc. invade lubricating oil to ensure the lubricated effect of wheel hub position, increase of service life.
For special vehicles such as heavy trucks, engineering vehicles, large buses and the like, the hub oil seal of the vehicle mostly adopts a box-type oil seal structure. The box-type oil seal structure usually uses an oil seal box of an annular structure as an installation base body, a metal framework is arranged on the circumferential direction of a sealing ring for sealing, then the sealing ring is installed in a central hole of the oil seal box through the metal framework, and the sealing ring is a plastic piece and is not suitable for being assembled in an interference fit mode so as to avoid deformation and folding of the sealing ring and influence on the sealing effect. If transition fit is installed between adopting according to current assembly methods, the sealing washer is at the in-process that thermal deformation and truck jolt vibrations, and is not hard up easily, can follow axial displacement even, drops out in the oil blanket box, causes lubricating oil to reveal, leads to mechanical failure.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an oil blanket box for automobile wheel hub to solve the technical problem that the sealing washer easily drops in the use.
In order to achieve the above purpose, the utility model discloses technical scheme as follows:
The utility model provides an oil blanket box for automobile wheel hub, includes the annular circle body, the both ends of annular circle body are equipped with turn-ups and circular disk respectively, and turn-ups and circular disk are all along the radial outside extension of annular circle body, and its key lies in: the inner diameter of the annular ring body is gradually reduced from the circular disc to the flanging direction, so that the inner hole of the annular ring body has taper.
Adopt above-mentioned structure, wheel hub oil blanket assembly is when the assembly, and the sealing washer is adorned at the annular ring body along with metal skeleton circle together, compares traditional oil blanket box, the utility model discloses an oil blanket box sets up the tapering on annular ring body inner wall, and the bore that is close to turn-ups one end is little, can prevent like this effectively that the sealing washer from the outside removal of tip of annular ring body to ensure at the in-process of thermal deformation and the truck jolt vibrations, the sealing washer can not come off from the oil blanket box, guarantees the lubricated reliability in automobile wheel hub position.
Preferably, the method comprises the following steps: the taper of the inner hole of the annular ring body is 0.05-0.1 degrees. By adopting the structure, the taper range is reasonable to set, and the requirement of the assembly clearance is met.
Preferably, the method comprises the following steps: the annular ring body, the flanging and the circular disc are integrally formed, and the width of the flanging is smaller than that of the circular disc. By adopting the structure, the oil seal box can be conveniently produced in a punch forming mode.
Preferably, the method comprises the following steps: the radius difference of two ends of the inner hole of the annular ring body is 0.03-0.07 mm.
Preferably, the method comprises the following steps: and the inner wall of the annular ring body is distributed with limit salient points near the flanging position, and the limit salient points are formed in a pressure processing mode. By adopting the structure, the sealing ring can be further limited to move outwards from the end part of the annular ring body, so that the sealing ring can not fall off from the oil seal box.
Preferably, the method comprises the following steps: and a round corner is arranged at the transition position of the inner wall of the annular ring body and the circular disc. By adopting the structure, the sealing ring and other components can be conveniently arranged from the large-diameter end of the annular ring body.
The utility model also provides a wheel hub oil blanket assembly for solve traditional wheel hub oil blanket assembly when using, the technical problem that the sealing washer easily drops, this wheel hub oil blanket assembly's technical scheme as follows:
including above-mentioned an oil blanket box for automobile wheel hub, its key lies in: an auxiliary framework ring, a main framework ring and a positioning ring are sequentially arranged in the annular ring body from the flanging to the direction of the circular disc, wherein the auxiliary framework ring is internally provided with the auxiliary sealing ring, the main framework ring is internally provided with the main sealing ring, and the auxiliary framework ring and the main framework ring are limited in the annular ring body by the taper and the positioning ring.
By adopting the structure, after the hub oil seal assembly is assembled, the auxiliary framework ring and the main framework ring are limited between the small-diameter end of the annular ring body and the positioning ring, so that the main and auxiliary framework rings can be effectively prevented from moving outwards from the end part of the annular ring body, namely, the main and auxiliary sealing rings are prevented from moving outwards, the sealing rings can not fall off from the oil seal box in the thermal deformation and bumping and vibrating processes of a truck, and the reliability of the lubrication of the position of the automobile hub is ensured. Simultaneously, this wheel hub oil blanket assembly has main vice two-stage sealing washer, can guarantee sealed effect comparatively thoroughly, avoids lubricating oil to reveal to and prevent during external silt, dust, aqueous vapor etc. from invading lubricating oil, promote the lubricated effect of automobile wheel hub position, postpone life.
Preferably, the method comprises the following steps: the cross-section of holding ring is echelonment structure, including first connecting portion, second connecting portion and the third connecting portion of buckling in proper order, and first connecting portion are installed on the inner wall of annular ring body, and the welding of second connecting portion is on the surface of circular dish. By adopting the structure, the positioning ring is convenient to be arranged at the position of the annular ring body close to the circular disc, and can play a role in positioning the main and auxiliary framework rings.
Preferably, the method comprises the following steps: and the outer surfaces of the auxiliary framework ring and the main framework ring are respectively provided with a friction groove with an annular structure. By adopting the structure, the friction between the main and auxiliary framework rings and the inner wall of the annular ring body can be increased, and the looseness of the main and auxiliary framework rings is avoided.
Preferably, the method comprises the following steps: and one ends of the auxiliary framework ring and the main framework ring, which are far away from the positioning ring, are respectively provided with a stop ring which extends inwards to form. By adopting the structure, the connection stability between the sealing ring and the framework ring can be ensured.
compared with the prior art, the beneficial effects of the utility model are that:
adopt the utility model provides an oil blanket box and wheel hub oil blanket assembly for automobile wheel hub, through tapered setting, vice skeleton circle, main skeleton circle is spacing between the path end and the holding ring of annular circle body, can prevent effectively that main and vice skeleton circle from the outside removal of tip of annular circle body, prevent main and vice sealing washer outside removal promptly, in order to ensure at the in-process of thermal deformation, and the truck jolt vibrations, the sealing washer can not come off from the oil blanket box, guarantee the lubricated reliability in automobile wheel hub position. Secondly, the wheel hub oil blanket assembly has main and auxiliary two-stage sealing washer, can guarantee sealed effect comparatively thoroughly, avoids lubricating oil to reveal to and prevent that external silt, dust, aqueous vapor etc. from invading in lubricating oil, promote the lubricated effect of automobile wheel hub position, postpone life.
Drawings
FIG. 1 is a cross-sectional view of an oil seal cartridge;
FIG. 2 is a schematic structural diagram of an oil seal box;
FIG. 3 is an assembly view of the hub oil seal assembly;
Fig. 4 is a partial enlarged view of the point i in fig. 3.
Detailed Description
The present invention will be further described with reference to the following examples and accompanying drawings.
As shown in fig. 3, the hub oil seal assembly is assembled by an oil seal box, an auxiliary framework ring 6, a main framework ring 7, a positioning ring 8, an auxiliary sealing ring 9 and a main sealing ring 10.
As shown in fig. 1 and 2, the oil seal box comprises an annular ring body 1, a flange 2 and a circular disc 3 which are integrally formed, wherein the flange 2 and the circular disc 3 are respectively positioned at two ends of the annular ring body 1, the flange 2 and the circular disc 3 are parallel to each other and both extend outwards along the radial direction of the annular ring body 1, and the inner diameter of the annular ring body 1 is gradually reduced from the circular disc 3 towards the flange 2, so that the inner hole of the annular ring body 1 has a taper r.
As shown in fig. 3 and 4, during assembly, the sub-skeleton ring 6, the main skeleton ring 7 and the positioning ring 8 are sequentially installed into the annular ring body 1 from the large-diameter end of the annular ring body 1, the sub-seal ring 9 and the main seal ring 10 are respectively installed on the corresponding sub-skeleton ring 6 and the corresponding main skeleton ring 7, and after assembly is completed, due to the arrangement of the taper r, the sub-skeleton ring 6 and the main skeleton ring 7 are limited between the small-diameter end of the annular ring body 1 and the positioning ring 8.
The taper r of the inner hole of the annular ring body 1 is 0.05-0.1 degrees, and in the embodiment, the taper r is preferably set to be 0.08 degrees.
In order to conveniently assemble the hub oil seal assembly on the automobile, mounting holes 5 are uniformly distributed on the circular disc 3.
As shown in fig. 2, in order to further limit the main and auxiliary skeleton rings from moving outwards from the end of the annular ring body 1, limit salient points 4 are distributed on the inner wall of the annular ring body 1 near one end of the flange 2, so that the arrangement can thoroughly ensure that the sealing ring cannot fall off from the oil seal box.
As shown in fig. 4, the limit bumps 4 are formed at the transition position between the inner wall of the annular ring body 1 and the flange 2 by press processing, and 6 evenly distributed limit bumps 4 are formed at one time. After the limit salient points 4 are punched and formed, the distance a between the limit salient points 4 and the outer surface of the flange 2 is not more than 1mm, and the axial mounting position of the main sealing ring and the auxiliary sealing ring in the oil seal box can be influenced due to the overlarge distance a, so that the assembly precision of the hub oil seal assembly is influenced. In order to improve the assembling precision, in the embodiment, the distance a between the limiting salient point 4 and the outer surface of the flanging 2 is preferably set to be 0.75 mm.
in this embodiment, the limit bumps 4 are block-shaped structures distributed at intervals, and of course, the limit bumps 4 may be directly replaced by a whole ring-strip-shaped structure.
The radius difference of two ends of an inner hole of the annular ring body 1 is 0.05-0.2 mm, in the embodiment, the radius of the optimized small end is 79.25mm, and the radius of the optimized large end is 79.31 mm.
As shown in fig. 1, in order to conveniently load the auxiliary skeleton ring 6, the main skeleton ring 7 and the positioning ring 8 from the large-diameter end of the annular ring body 1, a fillet y is arranged at the transition position of the inner wall of the annular ring body 1 and the circular disc 3.
In order to increase the friction between the main and auxiliary framework rings and the inner wall of the annular ring body 1 and avoid the looseness of the main and auxiliary framework rings, the outer surfaces of the auxiliary framework ring 6 and the main framework ring 7 are respectively provided with a friction groove c with an annular structure.
the cross-section of holding ring 8 is the echelonment structure, including first connecting portion 8a, second connecting portion 8b and the third connecting portion 8c of buckling in proper order, first connecting portion 8a welds on the inner wall of annular circle body 1, and second connecting portion 8b welds on circular disk 3's surface, so design, can conveniently install holding ring 8 in the position that annular circle body 1 is close to circular disk 3 to can play the positioning action to major-minor skeleton circle.
In order to ensure the stability of the connection between the sealing ring and the framework ring, one ends of the auxiliary framework ring 6 and the main framework ring 7 far away from the positioning ring 8 are respectively provided with a stop ring z which extends inwards and is formed.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.
Claims (10)
1. The utility model provides an oil blanket box for automobile wheel hub, includes annular ring body (1), the both ends of annular ring body (1) are equipped with turn-ups (2) and circular disk (3) respectively, and turn-ups (2) and circular disk (3) are all along the radial outside extension of annular ring body (1), its characterized in that: the inner diameter of the annular ring body (1) is gradually reduced from the circular disc (3) to the flanging (2), so that the inner hole of the annular ring body (1) has a taper (r).
2. The oil seal box for the automobile hub according to claim 1, characterized in that: the taper (r) of the inner hole of the annular ring body (1) is 0.05-0.1 degrees.
3. The oil seal box for the automobile hub according to claim 2, characterized in that: the annular ring body (1), the flanging (2) and the circular disc (3) are integrally formed, and the width of the flanging (2) is smaller than that of the circular disc (3).
4. The oil seal box for the automobile hub according to claim 3, characterized in that: the radius difference of two ends of the inner hole of the annular ring body (1) is 0.03-0.07 mm.
5. The oil seal box for the automobile hub according to claim 1, 2, 3 or 4, characterized in that: the inner wall of the annular ring body (1) is provided with limiting salient points (4) at positions close to the turned-over edges (2), and the limiting salient points (4) are formed in a pressure processing mode.
6. The oil seal box for the automobile hub according to claim 5, characterized in that: the transition position of the inner wall of the annular ring body (1) and the circular disc (3) is provided with a fillet (y).
7. An oil seal assembly for a hub, comprising the oil seal box for an automobile hub of any one of claims 1 to 6, characterized in that: the annular ring body (1) is internally provided with an auxiliary framework ring (6), a main framework ring (7) and a positioning ring (8) in sequence from the flanging (2) to the direction of the circular disc (3), wherein the auxiliary framework ring (6) is internally provided with an auxiliary sealing ring (9), the main framework ring (7) is internally provided with a main sealing ring (10), and the auxiliary framework ring (6) and the main framework ring (7) are limited in the annular ring body (1) by the taper (r) and the positioning ring (8).
8. the wheel hub oil seal assembly of claim 7, wherein: the cross-section of holding ring (8) is the echelonment structure, including first connecting portion (8a), second connecting portion (8b) and third connecting portion (8c) of buckling in proper order, first connecting portion (8a) are installed on the inner wall of annular ring body (1), and second connecting portion (8b) welding is on the surface of circular dish (3).
9. The wheel hub oil seal assembly of claim 7, wherein: and the outer surfaces of the auxiliary framework ring (6) and the main framework ring (7) are provided with friction grooves (c) with annular structures.
10. The wheel hub oil seal assembly of claim 9, wherein: and one ends of the auxiliary framework ring (6) and the main framework ring (7) far away from the positioning ring (8) are respectively provided with a stop ring (z) which extends inwards to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920473891.0U CN209781683U (en) | 2019-04-09 | 2019-04-09 | Oil seal box for automobile hub and hub oil seal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920473891.0U CN209781683U (en) | 2019-04-09 | 2019-04-09 | Oil seal box for automobile hub and hub oil seal assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209781683U true CN209781683U (en) | 2019-12-13 |
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ID=68801895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920473891.0U Active CN209781683U (en) | 2019-04-09 | 2019-04-09 | Oil seal box for automobile hub and hub oil seal assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209781683U (en) |
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2019
- 2019-04-09 CN CN201920473891.0U patent/CN209781683U/en active Active
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