CN204878361U - Automobile wheel hub unit - Google Patents
Automobile wheel hub unit Download PDFInfo
- Publication number
- CN204878361U CN204878361U CN201520539599.6U CN201520539599U CN204878361U CN 204878361 U CN204878361 U CN 204878361U CN 201520539599 U CN201520539599 U CN 201520539599U CN 204878361 U CN204878361 U CN 204878361U
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- Prior art keywords
- ring
- seal ring
- pressed against
- lip
- hub unit
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Abstract
The utility model discloses an automobile wheel hub unit, including outer lane, two inner circles, holder, tapered roller and sealing washers, two inner circles lean on side by side mutually, have two raceway faces on the outer lane, and tapered roller places in between the raceway of raceway face and the inner circle of outer lane, and the sealing washer is installed between outer lane and inner circle, and tapered roller sets up in the holder, the sealing washer includes external seal circle and inside seal circle, and the outside limit department of external seal circle has the portion of bending, and the portion of bending presses on the inside wall of the limit of outer lane portion, and the external seal is fixed with the sealing in enclosing, is fixed with the seal lip on the sealing, including seal lip elasticity presses on the sealing washer, be fixed with the covering body on the lateral wall of the outer terminal surface department of outer lane, the retaining ring that has outside extension on the outside portion of the outer terminal surface of the covering body. It can reduce external influence to automobile wheel hub unit, guarantees its life.
Description
Technical field:
The utility model relates to automobile hub bearing technical field, relates to a kind of automobile hub unit in particular.
Background technique:
Existing automobile hub unit is generally that the outer wall of outer ring is provided with multiple engaging lug, engaging lug is provided with connecting screw hole, and be provided with tapered roller and seal ring between outer ring in automobile hub unit and inner ring, generally be pressed against by sealing lip elasticity between employing exterior seal ring and inner seal ring to seal in existing seal ring, and existing sealing lip its generally only have a lip and, lip is that direct elasticity is pressed against on inner seal ring, its sealing effect is limited, elasticity dynamics is large not, and owing to being automobile hub unit, the impurity such as the dust in its external world can affect its working life, present automobile hub unit does not have other protective measures.
Model utility content:
The purpose of this utility model overcomes the deficiencies in the prior art, a kind of automobile hub unit is provided, it can lower the impact of outer bound pair automobile hub unit, ensure its working life, meanwhile, its sealing lip had has multiple lip and seals, its good sealing effect, ensure that the grease of its inside can not spill, improve working life.
The scheme that the utility model solve the technical problem is:
A kind of automobile hub unit, comprise outer ring, two inner rings, retainer, tapered roller and seal ring, two inner rings lean on side by side mutually, outer ring have two roller surfaces, tapered roller is placed between the roller surface of outer ring and the raceway of inner ring, seal ring is arranged between outer ring and inner ring, tapered roller is arranged in retainer, described seal ring comprises exterior seal ring and inner seal ring, the outer side place of exterior seal ring has bending part, bending part is pressed against on the madial wall of the edge of outer ring, sealed department is fixed with in exterior seal ring, sealed department is fixed with sealing lip, sealing lip elasticity is pressed against on inner seal ring, the inner side edge place of inner seal ring has interior bending part, interior bending part is pressed against on the outer side wall of the edge of inner ring,
Sleeve in described two inner rings is also equipped with interior plug;
The outer side wall at the exterior edge face place of described outer ring is fixed with covering body;
The lateral part of the exterior edge face of described covering body has outward extending back-up ring.
Described covering body comprises annular collar; the edge portion of annular collar has bending circle; covering body sleeve holding are on outer ring; bending circle is pressed against on the outer side wall of outer ring; annular collar is pressed against on the exterior edge face of outer ring; the outer wall of covering body is coated with elastic protecting sleeve, and the lateral part of the exterior edge face of elastic protecting sleeve has outward extending back-up ring.
The middle part of the outer side wall of described outer ring forms multiple engaging lug, and engaging lug has connecting screw hole, and engaging lug is distributed on the outer side wall of outer ring.
Described sealing lip comprises the first lip and the second lip, first lip elasticity is pressed against on inner seal ring, second lip elasticity is pressed against the bending part between interior bending part and inner seal ring, and the outer end place of the second lip has lug boss, and lug boss elasticity is pressed against interior bending part near outer end place.
Described back-up ring is truncated conical shape cover, and one end diameter of itself and elastic protecting sleeve joint is less than the other end of back-up ring.
Outstanding effect of the present utility model is:
Compared with prior art, it can lower the impact of outer bound pair automobile hub unit, ensures its working life, and meanwhile, its sealing lip had has multiple lip and seals, its good sealing effect, ensures that the grease of its inside can not spill, and improves working life.
Accompanying drawing illustrates:
Fig. 1 is easy structure schematic diagram of the present utility model;
Fig. 2 is the partial sectional view that the utility model is provided with interior plug;
Fig. 3 is the partial enlarged drawing of Fig. 2.
Embodiment:
Embodiment, see as shown in Figures 1 to 3, a kind of automobile hub unit, comprise outer ring 10, two inner rings 20, retainer 30, tapered roller 40 and seal ring 50, two inner rings 20 lean on side by side mutually, outer ring 10 have two roller surfaces, tapered roller 40 is placed between the roller surface of outer ring 10 and the raceway of inner ring 20, seal ring 50 is arranged between outer ring 10 and inner ring 20, tapered roller 40 is arranged in retainer 30, described seal ring 50 comprises exterior seal ring 51 and inner seal ring 52, the outer side place of exterior seal ring 51 has bending part 511, bending part 511 is pressed against on the madial wall of the edge of outer ring 10, sealed department 53 is fixed with in exterior seal ring 51, sealed department 53 is fixed with sealing lip 54, sealing lip 54 elasticity is pressed against on inner seal ring 52, the inner side edge place of inner seal ring 52 has interior bending part 521, interior bending part 521 is pressed against on the outer side wall of the edge of inner ring 20,
Further, sleeve be equipped with interior plug 60 in described two inner rings 20;
Further, the outer side wall at the exterior edge face place of described outer ring 10 is fixed with covering body 70;
Further, the lateral part of the exterior edge face of described covering body 70 has outward extending back-up ring 74.
Further; described covering body 70 comprises annular collar 71; the edge portion of annular collar 71 has bending circle 72; covering body 70 sleeve holding are on outer ring 10; bending circle 72 is pressed against on the outer side wall of outer ring 10; annular collar 71 is pressed against on the exterior edge face of outer ring 10, and the outer wall of covering body 70 is coated with elastic protecting sleeve 73, and the lateral part of the exterior edge face of elastic protecting sleeve 73 has outward extending back-up ring 74.
Further, the middle part of the outer side wall of described outer ring 10 forms multiple engaging lug 11, and engaging lug 11 has connecting screw hole 12, engaging lug 11 is distributed on the outer side wall of outer ring 10.
Further, described sealing lip 54 comprises the first lip 541 and the second lip 542, first lip 541 elasticity is pressed against on inner seal ring 52, second lip 542 elasticity is pressed against the bending part between interior bending part 521 and inner seal ring 52, the outer end place of the second lip 542 has lug boss 543, and lug boss 543 elasticity is pressed against interior bending part 521 near outer end place.
Further, described back-up ring 74 is truncated conical shape cover, and one end diameter of itself and elastic protecting sleeve 73 joint is less than the other end of back-up ring 74.
Described interior plug 60 is nylon ferrule, mainly ensures that two inner rings 20 can not loosen in transit.
During use, it can stop that by the back-up ring 74 of covering body 70 impurity such as the dust that a part is extraneous are to the shock of the present embodiment, thus improves its working life.
Simultaneously, its sealing lip 54 comprises the first lip 541 and the second lip 542, first lip 541 elasticity is pressed against on inner seal ring 52, second lip 542 elasticity is pressed against the bending part between interior bending part 521 and inner seal ring 52, the outer end place of the second lip 542 has lug boss 543, and lug boss 543 elasticity is pressed against interior bending part 521 near outer end place, adopts this structure can ensure better sealing effect, the grease placed between outer ring 10 and inner ring 20 spills, and improves the working life of the present embodiment.
Finally; above mode of execution is only for illustration of the utility model; and be not limitation of the utility model; the those of ordinary skill of relevant technical field; when not departing from spirit and scope of the present utility model; can also make a variety of changes and modification, therefore all equivalent technological schemes also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (5)
1. an automobile hub unit, comprise outer ring (10), two inner rings (20), retainer (30), tapered roller (40) and seal ring (50), two inner rings (20) are leaned on side by side mutually, outer ring (10) have two roller surfaces, tapered roller (40) is placed between the roller surface of outer ring (10) and the raceway of inner ring (20), seal ring (50) is arranged between outer ring (10) and inner ring (20), tapered roller (40) is arranged in retainer (30), it is characterized in that: described seal ring (50) comprises exterior seal ring (51) and inner seal ring (52), the outer side place of exterior seal ring (51) has bending part (511), bending part (511) is pressed against on the madial wall of the edge of outer ring (10), sealed department (53) is fixed with in exterior seal ring (51), sealed department (53) is fixed with sealing lip (54), sealing lip (54) elasticity is pressed against on inner seal ring (52), the inner side edge place of inner seal ring (52) has interior bending part (521), interior bending part (521) is pressed against on the outer side wall of the edge of inner ring (20),
The outer side wall at the exterior edge face place of described outer ring (10) is fixed with covering body (70);
The lateral part of the exterior edge face of described covering body (70) has outward extending back-up ring (74).
2. a kind of automobile hub unit according to claim 1; it is characterized in that: described covering body (70) comprises annular collar (71); the edge portion of annular collar (71) has bending circle (72); covering body (70) sleeve holding are on outer ring (10); bending circle (72) is pressed against on the outer side wall of outer ring (10); annular collar (71) is pressed against on the exterior edge face of outer ring (10); the outer wall of covering body (70) is coated with elastic protecting sleeve (73), and the lateral part of the exterior edge face of elastic protecting sleeve (73) has outward extending back-up ring (74).
3. a kind of automobile hub unit according to claim 2, it is characterized in that: the middle part of the outer side wall of described outer ring (10) forms multiple engaging lug (11), engaging lug (11) has connecting screw hole (12), engaging lug (11) is distributed on the outer side wall of outer ring (10).
4. a kind of automobile hub unit according to claim 3, it is characterized in that: described sealing lip (54) comprises the first lip (541) and the second lip (542), first lip (541) elasticity is pressed against on inner seal ring (52), second lip (542) elasticity is pressed against the bending part between interior bending part (521) and inner seal ring (52), the outer end place of the second lip (542) has lug boss (543), and lug boss (543) elasticity is pressed against interior bending part (521) near outer end place.
5. a kind of automobile hub unit according to claim 4, is characterized in that: described back-up ring (74) is truncated conical shape cover, and one end diameter of itself and elastic protecting sleeve (73) joint is less than the other end of back-up ring (74).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520539599.6U CN204878361U (en) | 2015-07-23 | 2015-07-23 | Automobile wheel hub unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520539599.6U CN204878361U (en) | 2015-07-23 | 2015-07-23 | Automobile wheel hub unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878361U true CN204878361U (en) | 2015-12-16 |
Family
ID=54822737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520539599.6U Active CN204878361U (en) | 2015-07-23 | 2015-07-23 | Automobile wheel hub unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204878361U (en) |
-
2015
- 2015-07-23 CN CN201520539599.6U patent/CN204878361U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |