CN203427539U - Rear drive axle assembly of multifunctional commercial vehicle - Google Patents
Rear drive axle assembly of multifunctional commercial vehicle Download PDFInfo
- Publication number
- CN203427539U CN203427539U CN201320501847.9U CN201320501847U CN203427539U CN 203427539 U CN203427539 U CN 203427539U CN 201320501847 U CN201320501847 U CN 201320501847U CN 203427539 U CN203427539 U CN 203427539U
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- Prior art keywords
- axle
- bearing
- sleeve
- double
- jam nut
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- Expired - Fee Related
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Abstract
The utility model relates to a rear drive axle assembly of a multifunctional commercial vehicle. The rear drive axle assembly comprises a main speed reducer (9) and a differential mechanism (11). A drive axle housing (12) is connected outside the main speed reducer (9) and the differential mechanism (11), the differential mechanism (11) is connected with two axle shafts (5), the outer end of each axle shaft (5) is connected with a rear wheel hub (1), and an axle shaft sleeve (6) is arranged between each axle shaft (5) and the corresponding rear wheel hub (1). The rear drive axle assembly is characterized in that a double-row tapered roller bearing (2) is connected to each axle shaft sleeve (6), a bearing positioning sleeve (3) is in matched connected with the outer side of each double-row tapered roller bearing (2), a locking nut (4) is arranged inside each bearing positioning sleeve (3), each locking nut (4) is connected to the corresponding axle shaft sleeve (6), and one end of each locking nut (4) is in contact fit with the corresponding double-row tapered roller bearing (2). The rear drive axle assembly has the advantages of being easy to machine and assemble, and improving the comfort and the safety performance of the commercial vehicle.
Description
Technical field
The utility model relates to light bus, particularly a kind of rear driving axle assembly of Multifunctional commercial car.
Background technology
The end of drive axle in Power Train, its basic function is to increase the torque of being transmitted by transmission shaft or change-speed box, and power is reasonably distributed to left and right driving wheel, also bear in addition the vertical power, longitudinal force and the transverse force that act between road surface, vehicle frame or vehicle body.Drive axle is generally comprised of main reduction gear, main reduction gear, wheel drive and driving axle housing etc.The double-row conical bearing of present stage adopts two single-row bearings, and it is limited that its assembling bothers, meets load ability to bear; The locking mode of double-row conical bearing mostly adopts the occupation mode of jam nut, locking packing ring and hexagonal bar iron collocation, and its assembling is more loaded down with trivial details, and its auto-lock function is poor when long-time use, easily generation activity of bearing.Through extensively retrieval, not yet find comparatively desirable technical scheme.
Utility model content
Of the present utility model is to assemble simply in order to realize the rear driving axle of light bus, compared with the good object of energy, and the rear driving axle assembly of a kind of Multifunctional commercial car of proposition.
To achieve these goals, the utility model has adopted following technical scheme:
A kind of rear driving axle assembly of Multifunctional commercial car, comprise main reduction gear and diff, driving axle housing is connected in the outside of main reduction gear and diff, two semiaxis of symmetrical connection on diff, a rear-wheel hub is connected in the outer end of each semiaxis, between semiaxis and rear-wheel hub, be provided with axle tube, it is characterized in that: a double-row conical bearing is connected on axle tube, bearing abutment sleeve is connected in the outside of double-row conical bearing, in bearing abutment sleeve, be provided with jam nut, jam nut is connected on axle tube, and one end of jam nut contacts cooperation with double-row conical bearing, outside at jam nut is provided with axle-shaft oil seal, axle-shaft oil seal matches with bearing abutment sleeve and semiaxis respectively.
On the basis of technique scheme, can there is following further technical scheme:
Described jam nut comprises metal sleeve, at one of them end face of sleeve, is provided with flange, at the medial surface of sleeve, is provided with the screw thread running through, at the annular inlay of the nylon of one end laminating of the inside thread of sleeve.
Jam nut is in the process of installing, the screw thread of axle tube is to the nylon extruding embedding in jam nut, make nylon distortion, after installing, nylon is that extruding contacts with screw thread completely, the nylon being extruded produces a very large screen resilience to axle tube, increased friction, this power makes bolt be not easy to become flexible, and makes jam nut have auto-lock function, can better limit the longitudinal travel of bearing, play good bearing locking effect.In assembling because having reduced amount of parts used, thereby greatly improved the efficiency of assembling.
Described double-row conical bearing is a double-row bearing, it comprises outer ring, two symmetrical inner rings are connected in outer ring, between outer ring and each inner ring, tilt to be connected one group of taper roller, the taper roller of both sides is symmetrical, between the outer ring, both sides of bearing and each inner ring, is also connected respectively a seal ring.Adopt a double-row conical bearing without adjusting bearing clearance, improve bearing assemble efficiency; Extended the service life of bearing; Can bear the heavier load that meets, improve safety performance.
On driving gear in described main reduction gear, use the spline of the many helical angles of little modulus instead.The bearing load of driving gear and the size of moment of torsion are further improved; Promote the stationarity that moment of torsion transmits; Promote the accurate positioning of main tooth; Reduce the rotating freely for angles of main reduction gear.
This device also changes the spline of driving gear into little modulus and increases helical angle, to increase bearing load and moment of torsion; Promote the stationarity that moment of torsion transmits; Promote the accurate positioning of main tooth; Reduce the rotating freely for angles of main reduction gear etc.
The utility model has the advantage of: this device processing is simple, it is easy to turn complexion, promoted traveling comfort and the safety of passenger vehicle.
Accompanying drawing explanation
Fig. 1 is basic structure schematic diagram of the present utility model;
Fig. 2 is the structural representation of double-row conical bearing;
Fig. 3 is the structural representation of jam nut.
The specific embodiment
As shown in Figure 1, the rear driving axle assembly of a kind of Multifunctional commercial car that the utility model provides, comprise main reduction gear 9 and diff 11, at main reduction gear 9, be connected driving axle housing 12 with on diff 11, symmetrical one end that connects two semiaxis 5 of difference on diff 11, at the other end of each semiaxis 5 rear-wheel hub 1 that is connected, between semiaxis 5 and rear-wheel hub 1, be provided with axle tube 6, it is characterized in that: a double-row conical bearing 2 is connected on axle tube 6, bearing abutment sleeve 3 is connected in the outside of double-row conical bearing 2, in bearing abutment sleeve 3, be provided with jam nut 4, jam nut 4 is socketed on axle tube 6, and one end of jam nut 4 contacts cooperation with double-row conical bearing 2, in the outside of jam nut 4, be provided with axle-shaft oil seal 7, axle-shaft oil seal 7 matches with bearing abutment sleeve 3 and semiaxis 5 respectively.On driving gear in described main reduction gear 9, be provided with the spline 10 of the many helical angles of little modulus.
Shown in Fig. 2, described double-row conical bearing 4 is double-row bearing, it comprises outer ring 2b, two symmetrical inner ring 2c are connected in the 2b of outer ring, between outer ring 2b and each inner ring 2c, tilt to be connected one group of taper roller 2a, the taper roller 2a of both sides is symmetrical, between the outer ring, both sides of bearing 2 2b and each inner ring 2c, is also connected respectively a seal ring 2d.
Shown in Fig. 3, described jam nut 4 comprises metal sleeve 4a, one of them end face at sleeve 4a is provided with flange 4c, medial surface at sleeve 4a is provided with the screw thread 4d running through, annular inlay 4b at a nylon of one end of the inside thread of sleeve 4a laminating, jam nut 4 is socketed on axle tube 6, by screw thread, cooperatively interacts, and nylon annular inlay 4b and axle tube 6 in jam nut 4 are connected.
Claims (2)
1. the rear driving axle assembly of a Multifunctional commercial car, comprise main reduction gear (9) and diff (11), driving axle housing (12) is connected in the outside of main reduction gear (9) and diff (11), at upper symmetrical two semiaxis (5) that connect of diff (11), a rear-wheel hub (1) is connected in the outer end of each semiaxis (5), between semiaxis (5) and rear-wheel hub (1), be provided with axle tube (6), it is characterized in that: a double-row conical bearing (2) is connected on axle tube (6), bearing abutment sleeve (3) is connected in the outside of double-row conical bearing (2), in bearing abutment sleeve (3), be provided with jam nut (4), jam nut (4) is connected on axle tube (6), and one end of jam nut (4) contacts cooperation with double-row conical bearing (2), in the outside of jam nut (4), be provided with axle-shaft oil seal (7), axle-shaft oil seal (7) matches with bearing abutment sleeve (3) and semiaxis (5) respectively.
2. the rear driving axle assembly of a kind of Multifunctional commercial car according to claim 1, it is characterized in that: jam nut (4) comprises metal sleeve (4a), one of them end face at sleeve (4a) is provided with flange (4c), at the inner side mounting thread (4d) of sleeve (4a), a nonmetallic annular inlay (4b) is also connected in the inner side of sleeve (4a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320501847.9U CN203427539U (en) | 2013-08-17 | 2013-08-17 | Rear drive axle assembly of multifunctional commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320501847.9U CN203427539U (en) | 2013-08-17 | 2013-08-17 | Rear drive axle assembly of multifunctional commercial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203427539U true CN203427539U (en) | 2014-02-12 |
Family
ID=50056596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320501847.9U Expired - Fee Related CN203427539U (en) | 2013-08-17 | 2013-08-17 | Rear drive axle assembly of multifunctional commercial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203427539U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105644268A (en) * | 2016-01-07 | 2016-06-08 | 东风商用车有限公司 | Driving axle shell |
-
2013
- 2013-08-17 CN CN201320501847.9U patent/CN203427539U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105644268A (en) * | 2016-01-07 | 2016-06-08 | 东风商用车有限公司 | Driving axle shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20200817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |