CN205101406U - Heavy load type combination wheel hub bearing unit - Google Patents
Heavy load type combination wheel hub bearing unit Download PDFInfo
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- CN205101406U CN205101406U CN201520888204.3U CN201520888204U CN205101406U CN 205101406 U CN205101406 U CN 205101406U CN 201520888204 U CN201520888204 U CN 201520888204U CN 205101406 U CN205101406 U CN 205101406U
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- spline tooth
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Abstract
The utility model relates to a bearing technology field, definite is wheel hub bearing unit. The utility model discloses a technical scheme do: a heavy load type combination wheel hub bearing unit, includes bearing inner race, bearing inner race and roller subassembly, the bearing inner race suit outside bearing inner race, roller component Assembly between bearing inner race and bearing inner race, the integrative integrated dynamic input flange of bearing inner race one end, be equipped with the spline tooth quotation of constituteing by a plurality of spline tooths along the circumference distribution on the power input flange terminal surface. Compared with the prior art, the utility model, have the degree of integrating height, supporting rigidity is good, the efficient advantage of loading of wheel hub bearing.
Description
Technical field
The utility model relates to technical field of bearings, specifically hub bearing, more precisely heavy-load type sectional hub bearing unit.
Background technique
In automobile driving process, because large and medium-sized truck load amount is comparatively large, again because road conditions when mine or long-distance transport are poor, hub bearing bears larger radial load and thrust load, the hub bearing of common single-row tapered roller bearing assembling, bearing capacity is limited and cannot adapt to; The hub bearing integration degree of existing double-row conical is low, causes hub bearing rigidity poor, and in the operating mode service condition of complexity, hub bearing is lower for working life; And assembly structure is complicated, hub bearing entrucking efficiency is low.
Simultaneously existing heavy-load type hub bearing sealing structure design is unreasonable, causes dust, muddy water easily to enter hub bearing inside, reduces hub bearing working life.
Summary of the invention
The present utility model object: for overcoming the defect that prior art exists, the utility model provides a kind of integration degreeization high, the heavy-load type sectional hub bearing unit that support stiffness is good, effectively improves the entrucking efficiency of hub bearing.
For achieving the above object, the utility model provides following technological scheme: a kind of heavy-load type sectional hub bearing unit, comprise bearing inner race, bearing outer ring and roller assembly, described bearing outer ring is sleeved on outside bearing inner race, roller assembly is assemblied between bearing outer ring and bearing inner race, it is characterized in that: described bearing inner race one end integrates dynamic input flange, power input flange end face is provided with the spline tooth card be made up of circumferential some spline tooths.
By adopting technique scheme, the direct integrated power input flange of bearing inner race, power input flange upper spline fluted disc face realizes power input, flange plate is adopted to connect compared with power input flange through fastening piece with tradition, there is degree of integration high, decrease being fastenedly connected of power input flange and inner ring flange, improve hub bearing entrucking efficiency; And there is the good advantage of support stiffness, improve hub bearing working life.
The utility model is set to further: described bearing outer ring outer peripheral surface is integrated Casing supports.Under this structural design, Casing supports and vehicle frame Flange joint, improve level of integration, being fastenedly connected of slow down few bearing outer ring and shell, raising hub bearing entrucking efficiency; Improve hub bearing support stiffness, improve hub bearing working life.
The utility model is set to further: described roller assembly includes the symmetrical tapered roller assembly of two row, tapered roller assembly comprises tapered roller and retainer, described bearing inner race comprises left side inner ring and the right side inner ring of end docking, power input flange is connected on the inner ring of left side, left column tapered roller assembly is located between left side inner ring and bearing outer ring, and right row tapered roller assembly is located between right side inner ring and bearing outer ring.Under this structural design, roller assembly adopts double row tapered roller post, and two inner ring docking is formed, and has bearing capacity good, compact structure, advantage easy to assembly.
The utility model is set to further: described bearing inner race is provided with hermetic oil seal near between power input flange one end and bearing outer ring, described hermetic oil seal comprises the installing ring portion be fixedly mounted in bearing outer ring, and be positioned at the sealing lip of internal side diameter, the outer peripheral surface of bearing inner race there are outer height, interior low sealed step, hermetic oil seal is placed in sealed step, and the radial circumferential contact of sealing lip and sealed step is sealed and matched.Under this structural design, effectively prevent dust, muddy water enters hub bearing inside, improve hub bearing working life.
The utility model is set to further: the rubber seal lip of described sealing lip to be sectional shape be " people " font, include the outer seal lip that oblique shaft extends laterally, and the interior sealing lip extended inside oblique bearing, the inner of interior sealing lip has the hook part formed to the upset of external diameter side, and in the hook groove of hook part, hoop has locking spring circle.Under adopting this structural design, adopt double-sealing lip seal, double-sealing lip is man type, there is good sealed elastic, contact reliably with the sealing of bearing inner race, and interior sealing lip forms the hook part of reverse flip formation, and lock locking spring circle, effectively improve sealing effect.
The utility model is set to further: the installing ring portion sectional shape of described hermetic oil seal is L-shaped, the installing ring portion of hermetic oil seal includes rubber matrix and seal ring skeleton that sectional shape is " L " shape, rubber matrix is attached on seal ring skeleton, the installing ring portion of hermetic oil seal comprises axially extended radial direction and installs cylindrical shell and the radial axial connecting body extended, and axial connecting body connects sealing lip.Under this structural design, hermetic oil seal solid and reliable.
The utility model is set to further: described spline tooth card upper spline tooth comprises some groups of spline tooth groups, each group spline tooth group by some in wire at equal intervals equally distributed spline tooth form, the bearing of trend of spline tooth is parallel to radius.Under this structural design, be convenient to the processing of spline tooth, and the spline tooth in many group spline tooth groups is that wire is uniformly distributed at equal intervals, the spline tooth of each spline tooth group has angle design, and stressed more reliable, power connects more reliable.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the utility model specific embodiment heavy-load type sectional hub bearing unit structural representation;
Fig. 2 is along A-A line Section View in Fig. 1;
Fig. 3 is part B partial enlarged view in Fig. 2.
Embodiment
As shown in Fig. 1 ~ 3, a kind of heavy-load type sectional hub bearing unit disclosed in the utility model, comprise bearing inner race 1, bearing outer ring 2 and roller assembly 3, described bearing outer ring 2 is sleeved on outside bearing inner race, roller assembly 3 is assemblied between bearing outer ring 2 and bearing inner race 1, described roller assembly 3 includes the symmetrical tapered roller assembly of two row, tapered roller assembly comprises tapered roller 31 and retainer 32, described bearing inner race 1 comprises left side inner ring 11 and the right side inner ring 12 of end docking, left column tapered roller assembly is located between left side inner ring 11 and bearing outer ring 2, right row tapered roller assembly is located between right side inner ring 12 and bearing outer ring 2, certainly as the scheme that the utility model is feasible, according to the actual requirement of bearing capacity, roller assembly can also adopt existing common Double-row ball roller, or three row cylinders roll, or the middle sandwiched cylindrical roller of two row steel ball rollers etc., the utility model preferentially adopts double row tapered roller column assembly, described left side inner ring 11 one end integrates dynamic input flange 13, and power input flange 13 end face is provided with the spline tooth card 131 be made up of circumferential some spline tooths.There is Casing supports 21 described bearing outer ring 2 outer peripheral surface is integrated.The direct integrated power input flange of bearing inner race, power input flange upper spline fluted disc face realizes power input, adopt flange plate to connect compared with power input flange through fastening piece with tradition, there is degree of integration high, decrease being fastenedly connected of power input flange and inner ring flange; Casing supports and vehicle frame Flange joint, improve further the level of integration of hub bearing, being fastenedly connected of slow down few bearing outer ring and shell, thus effective raising hub bearing entrucking efficiency; And there is the good advantage of support stiffness, improve hub bearing working life.
In this specific embodiment, as shown in Figure 1, described spline tooth card 131 upper spline tooth comprises in some groups of spline tooth groups 1311, figure four groups, each group of spline tooth group 1311 by some in wire at equal intervals equally distributed spline tooth form, the bearing of trend of spline tooth is parallel to radius.Be convenient to the processing of spline tooth like this, and the spline tooth in many group spline tooth groups is that wire is uniformly distributed at equal intervals, the spline tooth of each spline tooth group has angle design, and stressed more reliable, power connects more reliable.
For improving the sealability of hub bearing, described bearing inner race 1 is provided with hermetic oil seal 4 near between power input flange 13 one end and bearing outer ring 2, described hermetic oil seal 4 comprises the installing ring portion be fixedly mounted in bearing outer ring 2, and be positioned at the sealing lip of internal side diameter, the outer peripheral surface of the left side inner ring 11 of bearing inner race 1 there are outer height, interior low sealed step 111, hermetic oil seal 4 is placed in sealed step 111, and the radial circumferential contact of sealing lip and sealed step 111 is sealed and matched.The rubber seal lip of described sealing lip to be sectional shape be " people " font, include the outer seal lip 41 that oblique shaft extends laterally, and the interior sealing lip 42 extended inside oblique bearing, the inner of interior sealing lip 41 has the hook part 411 formed to the upset of external diameter side, and in the hook groove of hook part 411, hoop has locking spring circle 43.Adopt double-sealing lip seal, double-sealing lip is man type, has good sealed elastic, contacts reliably with the sealing of bearing inner race, and interior sealing lip forms the hook part of reverse flip formation, and locks locking spring circle, effectively improves sealing effect.
Wherein, the installing ring portion sectional shape of described hermetic oil seal is L-shaped, the installing ring portion of hermetic oil seal includes rubber matrix 44 and seal ring skeleton 45 that sectional shape is " L " shape, rubber matrix 44 is attached on seal ring skeleton 45, and the installing ring portion of hermetic oil seal 4 comprises axially extended radial direction and installs cylindrical shell 46 and the radial axial connecting body 47 extended.Radial cylindrical shell 46 of installing is inlaid in bearing outer ring 2, and axial connecting body 47 connects sealing lip, hermetic oil seal solid and reliable.
Claims (7)
1. a heavy-load type sectional hub bearing unit, comprise bearing inner race, bearing outer ring and roller assembly, described bearing outer ring is sleeved on outside bearing inner race, roller assembly is assemblied between bearing outer ring and bearing inner race, it is characterized in that: described bearing inner race one end integrates dynamic input flange, power input flange end face is provided with the spline tooth card be made up of circumferential some spline tooths.
2. heavy-load type sectional hub bearing unit according to claim 1, is characterized in that: described bearing outer ring outer peripheral surface is integrated Casing supports.
3. heavy-load type sectional hub bearing unit according to claim 1 or 2, it is characterized in that: described roller assembly includes the symmetrical tapered roller assembly of two row, tapered roller assembly comprises tapered roller and retainer, described bearing inner race comprises left side inner ring and the right side inner ring of end docking, power input flange is connected on the inner ring of left side, left column tapered roller assembly is located between left side inner ring and bearing outer ring, and right row tapered roller assembly is located between right side inner ring and bearing outer ring.
4. heavy-load type sectional hub bearing unit according to claim 1 or 2, it is characterized in that: described bearing inner race is provided with hermetic oil seal near between power input flange one end and bearing outer ring, described hermetic oil seal comprises the installing ring portion be fixedly mounted in bearing outer ring, and be positioned at the sealing lip of internal side diameter, the outer peripheral surface of bearing inner race there are outer height, interior low sealed step, hermetic oil seal is placed in sealed step, and the radial circumferential contact of sealing lip and sealed step is sealed and matched.
5. heavy-load type sectional hub bearing unit according to claim 4, it is characterized in that: the rubber seal lip of described sealing lip to be sectional shape be " people " font, include the outer seal lip that oblique shaft extends laterally, and the interior sealing lip extended inside oblique bearing, the inner of interior sealing lip has the hook part formed to the upset of external diameter side, and in the hook groove of hook part, hoop has locking spring circle.
6. heavy-load type sectional hub bearing unit according to claim 5, it is characterized in that: the installing ring portion sectional shape of described hermetic oil seal is L-shaped, the installing ring portion of hermetic oil seal includes rubber matrix and seal ring skeleton that sectional shape is " L " shape, rubber matrix is attached on seal ring skeleton, the installing ring portion of hermetic oil seal comprises axially extended radial direction and installs cylindrical shell and the radial axial connecting body extended, and axial connecting body connects sealing lip.
7. heavy-load type sectional hub bearing unit according to claim 1, it is characterized in that: described spline tooth card upper spline tooth comprises some groups of spline tooth groups, each group of spline tooth group by some in wire at equal intervals equally distributed spline tooth form, the bearing of trend of spline tooth is parallel to radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520888204.3U CN205101406U (en) | 2015-11-10 | 2015-11-10 | Heavy load type combination wheel hub bearing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520888204.3U CN205101406U (en) | 2015-11-10 | 2015-11-10 | Heavy load type combination wheel hub bearing unit |
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| Publication Number | Publication Date |
|---|---|
| CN205101406U true CN205101406U (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520888204.3U Active CN205101406U (en) | 2015-11-10 | 2015-11-10 | Heavy load type combination wheel hub bearing unit |
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| CN (1) | CN205101406U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515304A (en) * | 2016-12-10 | 2017-03-22 | 瓦房店轴承集团有限责任公司 | Hub assembly seal |
-
2015
- 2015-11-10 CN CN201520888204.3U patent/CN205101406U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515304A (en) * | 2016-12-10 | 2017-03-22 | 瓦房店轴承集团有限责任公司 | Hub assembly seal |
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