CN205706001U - Semifloating axle shaft and driven cylindrical gear portal drive axle wheel limit structure integrally - Google Patents
Semifloating axle shaft and driven cylindrical gear portal drive axle wheel limit structure integrally Download PDFInfo
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- CN205706001U CN205706001U CN201620372433.4U CN201620372433U CN205706001U CN 205706001 U CN205706001 U CN 205706001U CN 201620372433 U CN201620372433 U CN 201620372433U CN 205706001 U CN205706001 U CN 205706001U
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- cylindrical gear
- bearing
- axle shaft
- semifloating
- wheel
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Abstract
This utility model relates to the portal drive axle wheel limit structure of a kind of semifloating axle shaft and driven cylindrical gear one, this take turns limit structure using semifloating axle shaft with driven cylindrical gear as one；Actively roller gear is connected with wheel limit input bead by spline, and driven cylindrical gear and actively roller gear are arranged in cylindrical gear shell, and both external toothings constitute hub reduction gear；Supported by bearing between semifloating axle shaft and active roller gear and cylindrical gear shell；Roller gear cap is fixed on the right side of cylindrical gear shell as knuckle；Wheel hub is coupled with semifloating axle shaft by spline, and by locking nut axial locking, location；Wheel hub is connected fixing by tire bolt with wheel.This utility model improves main reducing gear height and car load road clearance to greatest extent, it is effectively increased car load and passes through property, and reduce production cost, there is compact conformation, take up room feature little, lightweight, can apply to light-duty, medium-sized and with first-class various offroad vehicles, commercial car.
Description
Technical field
This utility model relates to the wheel limit structure of a kind of portal drive axle, belongs to auto manufacturing's technical field,
It is applicable to all types of commercial car, military vehicle and offroad vehicle or other special vehicle.
Background technology
Portal drive axle is widely used in offroad vehicle, low-floor vehicle etc. to liftoff due to the advantage of its uniqueness
Gap requires harsh vehicle, and its hub reduction gear assembly is divided into semi-floating half according to the supporting type difference of semiaxis
Axle wheel limit structure and fully floating axle wheel limit structure.Owing to fully floating axle work process being solely subjected to moment of torsion,
Reliable operation, is widely used in medium-sized and above offroad vehicle portal drive axle.But fully floating axle wheel limit subtracts
Speed device assembly structure is complicated, and amount of parts is many, and axial dimension is big, is unfavorable for arrangement；And hub-shaped
Shape is complicated, mass size is the biggest, and manufacturing cost is higher；Due to the restriction of structure, repair and replacement wheel hub oil
Needing during envelope to dismantle the parts such as hub bearing, maintenance load is big.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of simple in construction, low cost, and maximum limit
The semifloating axle shaft that improve the car load road clearance of degree and driven cylindrical gear portal drive axle wheel limit integrally
Structure.
In order to solve above-mentioned technical problem, semifloating axle shaft of the present utility model and driven cylindrical gear one
Portal drive axle wheel limit structure includes wheel hub, semifloating axle shaft and the driven Cylinder Gear of semifloating axle shaft one
Wheel, actively roller gear, the input of wheel limit bead, cylindrical gear shell, roller gear cap；Described active circle
Stud wheel is connected with wheel limit input bead by spline, and driven cylindrical gear and actively roller gear are arranged in circle
In stud wheel shell, and both external toothings constitute hub reduction gear；Semifloating axle shaft and actively roller gear with
Supported by bearing between cylindrical gear shell；Roller gear cap is fixed on the right side of cylindrical gear shell and makees
For knuckle；Wheel hub is coupled with semifloating axle shaft by spline, and by locking nut axial locking, location；
Wheel hub is connected fixing by tire bolt with wheel.
Further, the left end extension of cylindrical gear shell forms axle sleeve；A bearing be positioned at axle sleeve left end and
It is supported between axle sleeve and semifloating axle shaft；B bearing be positioned at axle sleeve and cylindrical gear shell body junction and
It is supported between cylindrical gear shell and semifloating axle shaft.
Described A bearing and B bearing use taper roll bearing.
Further, this utility model also includes C bearing, and C bearing is positioned on the right side of driven cylindrical gear, and C
Bearing is supported between cylindrical gear shell and semifloating axle shaft.
Described A bearing and B bearing use taper roll bearing, and C bearing uses cylinder roller bearing.
Described hub oil seal is installed on the left end of cylindrical gear shell axle sleeve.
Described semifloating axle shaft is connected with cylindrical gear shell by B bearing and C bearing, B bearing and C bearing
Lay respectively at the both sides of driven cylindrical gear.
Described hub oil seal is installed on the left end of cylindrical gear shell.
Described B bearing and C bearing use taper roll bearing.
Described wheel hub is discoid.
Advantage of the present utility model:
1, use driven cylindrical gear and active roller gear external toothing mode to constitute hub reduction gear, meeting
On the basis of military vehicle and offroad vehicle car load are by property, improve to greatest extent main reducing gear height and
The car load road clearance, it is effectively increased car load and passes through property, and reduce production cost.
2, half-floating axle structure is used, and by semifloating axle shaft and driven cylindrical gear as one, zero
Number of components is few, and wheel limit is simple and compact for structure, lightweight.
3, wheel hub is discoid, simple in construction, and quality and size are less.And with the fully floating axle of ability
Wheel limit structure is compared, and hub bearing size is little, take up room little, be easy to arrangement.
4, hub oil seal is fixed on the left end of cylindrical gear shell axle sleeve, after oil seal failure, and only need to be by wheel hub
The most replaceable oil sealing of dismounting, easy to maintenance；Oil seal lip directly coordinates with wheel hub, and linear velocity is low, uses the longevity
Life is long.
5, have only to adjust the pretightning force of hub bearing during general assembly, decrease in conventional structure driven
The adjustment of roller gear bearing pretightning force；The oil sealing of cylindrical gear shell is fixed on the left end of cylindrical gear shell,
During maintenance oil sealing, driven cylindrical gear block bearing need not be dismounted, it is not necessary to readjust bearing pre-fastening, can
To significantly improve assembling and maintenance efficiency.
6, the axle sleeve formed by cylindrical gear shell left end extension between semifloating axle shaft and cylindrical gear shell
Interior A bearing, B bearing and C bearing are as supporting, it is ensured that the service life of semifloating axle shaft, with
Time make each parts stress more reasonable.
This utility model may be used for the off-road vehicle of independent suspension or rigid axle suspension, be applied to light-duty, in
Type and with first-class various offroad vehicles, commercial car.
Accompanying drawing explanation
The utility model is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is the portal drive axle wheel limit knot of semifloating axle shaft of the present utility model and driven cylindrical gear one
The schematic diagram of structure embodiment 1.
Fig. 2 is the portal drive axle wheel limit knot of semifloating axle shaft of the present utility model and driven cylindrical gear one
The schematic diagram of structure embodiment 2.
Fig. 3 is the portal drive axle wheel limit knot of semifloating axle shaft of the present utility model and driven cylindrical gear one
The schematic diagram of structure embodiment 3.
Fig. 4 is the structural representation of semifloating axle shaft.
Fig. 5 is the structural representation of wheel hub.
Detailed description of the invention
Embodiment 1
As it is shown in figure 1, the portal drive axle that semifloating axle shaft of the present utility model and driven cylindrical gear are integrally
Wheel limit structure include wheel hub 2, semifloating axle shaft 3 and the driven cylindrical gear 31 of semifloating axle shaft 3 one,
Actively roller gear 5, the input of wheel limit bead 6, cylindrical gear shell 7, roller gear cap 8；Described active
Roller gear 5 is connected with wheel limit input bead 6 by spline, driven cylindrical gear 31 and actively roller gear
5 are arranged in cylindrical gear shell 7, and both external toothings constitute hub reduction gear；Cylindrical gear shell 7
Left end extension forms axle sleeve 71；Semifloating axle shaft 3 is by A bearing 41, B bearing 42 and C bearing
43 support, and A bearing 41 is positioned at the left end of axle sleeve 71, and B bearing 42 is positioned at axle sleeve 71 and roller gear
The body junction of shell 7, C bearing 43 is positioned on the right side of driven cylindrical gear 31, and A bearing 41, B axle
Hold 42 and C bearings 43 to be supported between cylindrical gear shell 7 and semifloating axle shaft 3；Described A bearing 41
Taper roll bearing is used with B bearing 42；C bearing 43 uses cylinder roller bearing to support, and can increase
Gear rigidity, improves service life；Roller gear cap 8 is fixed on the right side of cylindrical gear shell 7 and makees
For knuckle；Wheel hub 2 is coupled with semifloating axle shaft 3 by spline, and pass through locking nut 1 axial locking,
Location；The edge of wheel hub 2 is connected fixing by bolt with wheel；The oil sealing 13 of cylindrical gear shell 7 is installed solid
It is scheduled on the left end of axle sleeve 71.
Embodiment 2
The present embodiment difference from Example 1 is that semifloating axle shaft 3 is by A bearing 41, B bearing 42
Supporting, A bearing 41 is positioned at the left end of axle sleeve 71, and B bearing 42 is positioned at axle sleeve 71 and cylindrical gear shell 7
Body junction, and A bearing 41 and B bearing 42 is supported on cylindrical gear shell 7 and semifloating axle shaft 3
Between；A bearing 41 and B bearing 42 uses taper roll bearing.Other part-structures and embodiment 1 phase
With.
Embodiment 3
The present embodiment difference from Example 1 is that described semifloating axle shaft 3 is by being positioned at driven Cylinder Gear
B the bearing 42 and C bearing 43 taking turns 31 both sides supports, and B bearing 42 and C bearing 43 is supported on circle
Between stud wheel shell 7 and semifloating axle shaft 3；B bearing 42 and C bearing 43 uses taper roll bearing；
Hub oil seal 13 is installed on the left end of cylindrical gear shell 7.Other part-structures are same as in Example 1.
When independent suspension, input bead 6 in wheel limit is by double universal joint or other gimbal structures and wheel
Limit drive shaft 10 connects；Two steering forks 81,82 of knuckle are by steering ball end or other structures and control
Arm processed connects.
When rigid axle suspension, described limit input bead 6 of taking turns is by double universal joint or other universal nodule
Structure is connected with inner shaft, and two steering forks 81,82 of knuckle are connected with the steering fork of axle housing by bearing pin.
Roller gear cap 8 is bolted with cylindrical gear shell 7 and is integrated, as basic body frame；
The output moment of torsion of main reducing gear 11 is transferred to take turns limit input bead 6, actively cylinder by wheel-drive shaft 10
Gear 5, semifloating axle shaft 3 (driven cylindrical gear), finally to wheel hub 2；The vertical load of whole bridge and wheel
Tire side force, longitudinal force are passed to semifloating axle shaft (driven cylindrical gear) 3 by wheel hub 2, are conducted by bearing
To cylindrical gear shell 7 with as on the roller gear cap 8 of knuckle.
This kind of semifloating axle shaft wheel limit structure, can ensure that the use longevity of semifloating axle shaft by reasonably design
Life, makes each parts stress more reasonable simultaneously.The arrangement of externally-engaged cylindrical gear, makes the whole bridge road clearance
Improve a gear centre away from, substantially increase the property passed through of car load.Semifloating axle shaft and driven Cylinder Gear
Wheel integrative-structure, greatly reduces the quantity of parts, reduces assembly weight.Described in embodiment 1 driven
Roller gear increases guide bearing (C bearing) structure, and the service life of gear and assembly is greatly improved.
Compare fully floating axle portal drive axle and conventional semifloating axle shaft portal drive axle, this kind of pattern of same ability
Wheel limit constitutional detail kind reduce 5～6 kind, weight saving 15%～20%.
Claims (10)
1. a semifloating axle shaft takes turns limit structure with driven cylindrical gear portal drive axle integrally, it is characterised in that include wheel hub (2), semifloating axle shaft (3) and the driven cylindrical gear (31) of semifloating axle shaft (3) one, actively roller gear (5), wheel limit input bead (6), cylindrical gear shell (7), roller gear cap (8)；Described active roller gear (5) is connected with wheel limit input bead (6) by spline, it is interior that driven cylindrical gear (31) and actively roller gear (5) are arranged in cylindrical gear shell (7), and both external toothings constitute hub reduction gears；Supported by bearing between semifloating axle shaft (3) and active roller gear (5) and cylindrical gear shell (7)；Roller gear cap (8) is fixed on the right side of cylindrical gear shell (7) as knuckle；Wheel hub (2) is coupled with semifloating axle shaft (3) by spline, and by locking nut (1) axial locking, location；Wheel hub (2) is connected fixing by tire bolt with wheel.
Semifloating axle shaft the most according to claim 1 and driven cylindrical gear portal drive axle wheel limit structure integrally, it is characterised in that the left end extension of described cylindrical gear shell (7) forms axle sleeve (71)；A bearing (41) is positioned at the left end of axle sleeve (71) and is supported between axle sleeve (71) and semifloating axle shaft (3)；B bearing (42) is positioned at axle sleeve (71) and the body junction of cylindrical gear shell (7) and is supported between cylindrical gear shell (7) and semifloating axle shaft (3).
Semifloating axle shaft the most according to claim 2 and driven cylindrical gear portal drive axle wheel limit structure integrally, it is characterised in that described A bearing (41) and B bearing (42) use taper roll bearing.
Semifloating axle shaft the most according to claim 2 and driven cylindrical gear portal drive axle wheel limit structure integrally, characterized by further comprising C bearing (43), C bearing (43) is positioned at driven cylindrical gear (31) right side, and C bearing (43) is supported between cylindrical gear shell (7) and semifloating axle shaft (3).
Semifloating axle shaft the most according to claim 4 and driven cylindrical gear portal drive axle wheel limit structure integrally, it is characterized in that described A bearing (41) and B bearing (42) use taper roll bearing, C bearing (43) uses cylinder roller bearing.
Semifloating axle shaft the most according to claim 2 and driven cylindrical gear portal drive axle wheel limit structure integrally, it is characterised in that the left end of the axle sleeve (71) of described cylindrical gear shell is provided with hub oil seal (13).
Semifloating axle shaft the most according to claim 1 and driven cylindrical gear portal drive axle wheel limit structure integrally, it is characterized in that described semifloating axle shaft (3) is connected with cylindrical gear shell (7) by B bearing (42) and C bearing (43), B bearing (42) and C bearing (43) lay respectively at the both sides of driven cylindrical gear (31).
Semifloating axle shaft the most according to claim 7 and driven cylindrical gear portal drive axle wheel limit structure integrally, it is characterised in that the left end of described cylindrical gear shell (7) is provided with hub oil seal (13).
Semifloating axle shaft the most according to claim 7 and driven cylindrical gear portal drive axle wheel limit structure integrally, it is characterised in that described B bearing (42) and C bearing (43) use taper roll bearing.
Semifloating axle shaft the most according to claim 1 and driven cylindrical gear portal drive axle wheel limit structure integrally, it is characterised in that described wheel hub (2) wheel hub is discoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620372433.4U CN205706001U (en) | 2016-04-28 | 2016-04-28 | Semifloating axle shaft and driven cylindrical gear portal drive axle wheel limit structure integrally |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620372433.4U CN205706001U (en) | 2016-04-28 | 2016-04-28 | Semifloating axle shaft and driven cylindrical gear portal drive axle wheel limit structure integrally |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205706001U true CN205706001U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620372433.4U Active CN205706001U (en) | 2016-04-28 | 2016-04-28 | Semifloating axle shaft and driven cylindrical gear portal drive axle wheel limit structure integrally |
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| CN (1) | CN205706001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105882316A (en) * | 2016-04-28 | 2016-08-24 | 中国第汽车股份有限公司 | Semi-floating axle shaft and driven cylindrical gear integrated gantry drive axle wheel hub structure |
-
2016
- 2016-04-28 CN CN201620372433.4U patent/CN205706001U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105882316A (en) * | 2016-04-28 | 2016-08-24 | 中国第汽车股份有限公司 | Semi-floating axle shaft and driven cylindrical gear integrated gantry drive axle wheel hub structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180823 Address after: 130011 2259 Dongfeng Street, Xinxin economic and Technological Development Zone, Changchun, Jilin Co-patentee after: FAW Jiefang Automotive Co., Ltd. Patentee after: China FAW Group Corporation Address before: 130011 2259 Dongfeng Street, Xinxin economic and Technological Development Zone, Changchun, Jilin Patentee before: China FAW Group Corporation |