CN209026029U - A kind of vehicle axle wheel side axis hold lock sealing structure - Google Patents
A kind of vehicle axle wheel side axis hold lock sealing structure Download PDFInfo
- Publication number
- CN209026029U CN209026029U CN201821328840.0U CN201821328840U CN209026029U CN 209026029 U CN209026029 U CN 209026029U CN 201821328840 U CN201821328840 U CN 201821328840U CN 209026029 U CN209026029 U CN 209026029U
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- Prior art keywords
- bearing
- knuckle
- locking nut
- shaft shoulder
- wheel side
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Rolling Contact Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The utility model relates to a kind of vehicle axle wheel side axis to hold lock sealing structure, including hub body, bearing and the knuckle being fixedly connected sequentially, the rear edge of the hub body is axially arranged with the shaft shoulder, in the shaft shoulder indentation bearing inner race, in the bearing mounting base of bearing indentation knuckle front end, and the bearing is respectively with wheel hub and knuckle in interference fit；The shaft end of the wheel hub shaft shoulder has been fastened with the locking nut of limit fixed function, and the outside of the locking nut is socketed with shaft end locking nut lid, and the shaft end locking nut lid crimps in the shell aperture of knuckle.The utility model increases the thermal diffusivity of bearing, simple and safe, maintenance conveniently, greatly reduce weight, installation space and the production cost of wheel side assembly, it ensure that effective pretightning force of bearing and the sealing performance of bearing simultaneously, generate good economic benefit and social benefit.
Description
Technical field
The utility model relates to a kind of lock sealing structure, specifically a kind of lock held for vehicle axle wheel side axis
Close seal structure, belongs to technical field of automobile parts.
Background technique
Bearing plays the function of bearing load on vehicle, and tractive force, brake force, tendency power and the vertical force of automobile pass
It is delivered on bearing.For the service life for guaranteeing bearing, prevent because bearing's looseness, bearing pre-fastening is insufficient, bearing burn to death initiation with
And the initiation bearing damage that bearing seal is bad, it designs reasonable bearing locking and sealing structure is most important.Traditional axis
It holds retaining mechanism and bearing is often fixed on knuckle shaft end, bearing radial direction is interference fitted using wheel hub, and axial direction is logical
Locking nut screwing is crossed, locking nut outer end uses end cap seal.Although traditional bearing locking mechanism can play locking and close
The effect of envelope, but since structure is complicated, cause wheel side weight big, cannot preferably meet the requirement of automotive light weight technology design.
Utility model content
The shortcomings that technical problem to be solved in the utility model is, overcomes the prior art provides a kind of structurally reasonable, peace
Dress is convenient, can satisfy the requirement of automotive light weight technology design, while guaranteeing effective pretightning force of bearing and the sealing performance of bearing
The lock sealing structure that holds of vehicle axle wheel side axis.
In order to solve the above technical problems, the utility model, which provides a kind of vehicle axle wheel side axis, holds lock sealing structure,
Including the wheel hub, bearing and knuckle being fixedly connected sequentially, the rear edge of the hub body is axially arranged with the shaft shoulder, the shaft shoulder
Be pressed into bearing inner race, in the bearing mounting base of bearing indentation knuckle front end, and the bearing respectively with wheel hub and turn
Xiang Jiecheng interference fit；The shaft end of the wheel hub shaft shoulder has been fastened with the locking nut of limit fixed function, the locking nut
Outside be socketed with shaft end locking nut lid, the shaft end locking nut lid crimps in the shell aperture of knuckle.
Further, the hub body includes hollow wheelboss flange face, and it is logical to be distributed along the circumference with axial centre thereon
Hole, along the shaft shoulder is axially arranged with, the shaft shoulder edge axially has to be connected with wheelboss flange face centre bore at the rear of the hub body
The outer diameter of the cylindrical hole connect, the shaft shoulder is sequentially reduced along knuckle direction in stepped shaft structure, and the axis of the shaft shoulder
End is provided with U-shaped limiting slot along axial direction.The wheel hub on the wheel side of the utility model not only contains the shaft shoulder, while being hollow structure, reduces
Complete vehicle quality, meets automotive light weight technology design requirement.
Further, the skirt of the locking nut is provided with the notch matched with the U-shaped limiting slot along axial direction, described
Notch is pressed into U-shaped limiting slot to prevent from loosening in wheel side motion process.The utility model is by by the skirt of locking nut
Side is pressed into the U-shaped keyway in hub spindle point of shoulder portion, effectively avoids loosening problem of the nut because of vibration.Meanwhile passing through retaining ring and lock
Tight nut axial direction fastener shaft is held, and provides effective pretightning force according to the reasonable control moment of the grade of locking nut for bearing.
Further, the left side of the bearing in the centre bore in wheelboss flange face by being pressed into for preventing impurity from entering
The wheel hub cover of bearing realizes left side sealing, and the bearing right side in the centre bore of the free bearing mounting base by being pressed into
Locking nut lid realizes right side sealing.
Further, circlip is fastened in the bearing mounting base interior groove circle of the knuckle shell aperture.By this
Kind structure realizes axially fastening for bearing outer ring, while adjusting bearing axial clearance by the pretightning force of circlip.
Further, the wheel hub shaft shoulder and bearing inner race are in interference fit, the bearing mounting base of the knuckle front end
With bearing outer ring in interference fit after expansion radial dimension, widened radial dimension is determined according to the race diameter of bearing.
The beneficial effects of the utility model are: a kind of vehicle wheel side axis provided by the utility model hold lock sealing structure,
This structure increases the thermal diffusivity of bearing, simple and safe, maintenance is convenient, greatly reduce wheel side assembly weight,
Installation space and production cost, while ensure that effective pretightning force of bearing and the sealing performance of bearing, generate good economy
Benefit and social benefit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the scheme of installation of the utility model.
Detailed description of the invention: 1- knuckle, 2- bearing, 3- retaining ring, 4- locking nut, the shaft end 5- locking nut lid, 6- wheel hub cover,
7- circlip, 8- wheel hub.
Specific embodiment
A kind of vehicle axle wheel side axis provided in this embodiment hold lock sealing structure, and structure is as shown in Figure 1 and Figure 2, by
Wheel hub cover 6, wheel hub 8, circlip 7, bearing 2, knuckle 1, retaining ring 3, locking nut 4 and shaft end locking nut lid 5 are successively
It is composed of a fixed connection.
Wherein, wheel hub includes the axially disposed shaft shoulder in hollow wheelboss flange face and its side.The edge on wheelboss flange face
It is circumferentially evenly equipped with axial central through hole, and shaft shoulder edge axially has the cylindrical hole being connected with wheelboss flange face centre bore,
And the outer diameter of the shaft shoulder is sequentially reduced along knuckle direction, while being provided with U-shaped limiting slot along axial direction in the shaft end of the shaft shoulder.And locking screw
Female skirt is provided with the notch matched with U-shaped limiting slot along axial direction, when assembly, using notch be pressed into U-shaped limiting slot to prevent
It only takes turns in the motion process of side and loosens.
By by the shaft shoulder be pressed into bearing inner race in, then by bearing indentation knuckle front end bearing mounting base in complete this reality
The primary structure of example is applied, and bearing inner race and the wheel hub shaft shoulder are used and be interference fitted, while the bearing mounting base of knuckle front end expands
Also with bearing outer ring in interference fit after big radial dimension, widened radial dimension is determined according to the race diameter of bearing.
Bearing is pressed into knuckle using press machine first in bearing assembling process by the present embodiment, assembles elasticity gear
Wheel hub is pressed into bearing inner race using press machine, finally assembles gasket and locking nut by circle.The knuckle cancels traditional reality
The structure type of mandrel shoulder and bearing inner race cooperation, expands the shaft shoulder radial dimension of knuckle, makes bearing outer ring and knuckle spindle
The cylindrical inner collar of shoulder is interference fitted, and increases the wheel hub shaft shoulder, is interference fitted wheel hub and bearing inner race, traditional by changing
Knuckle, bearing, wheel hub fit form, new wheel side is compact-sized, considerably increase wheel side space utilization rate；Guaranteeing
In the case where taking turns side maximum load capacity, hub centre uses hollow structure, reduces the weight of wheel hub.By taking turns in this present embodiment
The hollow structure at hub center influences bearing life to prevent water, mud etc. from entering bearing, using left and right sides sealing structure, bearing
Left side by the centre bore in wheelboss flange face be pressed into for prevent impurity enter bearing wheel hub cover realize on the left of seal,
And it is sealed on the right side of bearing by being pressed into the centre bore of free bearing mounting base on the right side of the realization of locking nut lid.
Meanwhile gasket being installed between locking nut and wheel hub shaft shoulder shaft end, it is axially tight with locking nut by gasket
Gu bearing provides effective pretightning force according to the reasonable control moment of the grade of locking nut for bearing, the skirt of locking nut is logical
It crosses in the U-shaped limit keyway of notch indentation wheel hub shaft end, effectively avoids loosening problem of the nut because of vibration.Bearing wheel of the invention
Side locking and sealing structure increase the thermal diffusivity and reliability of bearing, greatly reduce wheel side weight, increase the sky on wheel side
Between utilization rate and improve assembly efficiency.
In addition to the implementation, the utility model can also have other embodiments.It is all to use equivalent replacement or equivalent change
The technical solution to be formed is changed, the protection scope of the requires of the utility model is all fallen within.
Claims (6)
1. a kind of vehicle axle wheel side axis hold lock sealing structure, it is characterised in that: including be fixedly connected sequentially hub body,
Bearing and knuckle, the rear of the hub body are pressed into bearing inner race along the shaft shoulder, the shaft shoulder is axially arranged with, the bearing
It is pressed into the bearing mounting base of knuckle front end, and the bearing is respectively with hub body and knuckle in interference fit；It is described
The shaft end of the wheel hub shaft shoulder has been fastened with the locking nut of limit fixed function, and the outside of the locking nut is socketed with shaft end locking
Nut cap, the shaft end locking nut lid crimp in the shell aperture of knuckle.
2. vehicle axle wheel side axis according to claim 1 hold lock sealing structure, it is characterised in that: the hub body
Including hollow wheelboss flange face, it is distributed along the circumference with axial central through hole thereon, the shaft shoulder has and wheel hub method along axial
The outer diameter of the cylindrical hole that blue face centre bore is connected, the shaft shoulder is sequentially reduced along knuckle direction in stepped shaft structure,
And the shaft end of the shaft shoulder is provided with U-shaped limiting slot along axial direction.
3. vehicle axle wheel side axis according to claim 2 hold lock sealing structure, it is characterised in that: the locking nut
Skirt be provided with the notch matched with the U-shaped limiting slot along axial direction, the notch is pressed into U-shaped limiting slot to prevent wheel side
Motion process middle (center) bearing loosens.
4. vehicle axle wheel side axis according to claim 1 hold lock sealing structure, it is characterised in that: a left side for the bearing
Side is sealed by being pressed on the left of the wheel hub cover realization for preventing impurity from entering bearing in the centre bore in wheelboss flange face, described
It is sealed on the right side of bearing by being pressed into the centre bore of the free bearing mounting base on the right side of the realization of locking nut lid.
5. vehicle axle wheel side axis according to claim 1 hold lock sealing structure, it is characterised in that: outside the knuckle
Circlip is fastened in the bearing mounting base interior groove circle of housing hole.
6. vehicle axle wheel side axis according to claim 1 hold lock sealing structure, it is characterised in that: the wheel hub shaft shoulder
With bearing inner race in being interference fitted, with bearing outer ring in interference after the bearing mounting base expansion radial dimension of the knuckle front end
Cooperation, widened radial dimension are determined according to the race diameter of bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821328840.0U CN209026029U (en) | 2018-08-16 | 2018-08-16 | A kind of vehicle axle wheel side axis hold lock sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821328840.0U CN209026029U (en) | 2018-08-16 | 2018-08-16 | A kind of vehicle axle wheel side axis hold lock sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209026029U true CN209026029U (en) | 2019-06-25 |
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ID=66875290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821328840.0U Active CN209026029U (en) | 2018-08-16 | 2018-08-16 | A kind of vehicle axle wheel side axis hold lock sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209026029U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916245A (en) * | 2018-08-16 | 2018-11-30 | 南京依维柯汽车有限公司 | A kind of vehicle axle wheel side axis hold lock sealing structure |
| CN111775622A (en) * | 2020-07-10 | 2020-10-16 | 浙江吉利新能源商用车集团有限公司 | Wheel end assembly of vehicle, control method and vehicle |
-
2018
- 2018-08-16 CN CN201821328840.0U patent/CN209026029U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916245A (en) * | 2018-08-16 | 2018-11-30 | 南京依维柯汽车有限公司 | A kind of vehicle axle wheel side axis hold lock sealing structure |
| CN111775622A (en) * | 2020-07-10 | 2020-10-16 | 浙江吉利新能源商用车集团有限公司 | Wheel end assembly of vehicle, control method and vehicle |
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| GR01 | Patent grant |