CN101648495A - Full-floating half axle and externally-engaged cylindrical gear portal drive axle - Google Patents
Full-floating half axle and externally-engaged cylindrical gear portal drive axle Download PDFInfo
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- CN101648495A CN101648495A CN200810051081A CN200810051081A CN101648495A CN 101648495 A CN101648495 A CN 101648495A CN 200810051081 A CN200810051081 A CN 200810051081A CN 200810051081 A CN200810051081 A CN 200810051081A CN 101648495 A CN101648495 A CN 101648495A
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Abstract
The invention relates to a full-floating half axle and externally-engaged cylindrical gear portal drive axle, which is characterized in that a pair of externally-engaged cylindrical gears is arrangedon the wheel-side side of the drive axle; a steering joint is used as a wheel-side gear shell end cover; the driving cylindrical gear and the driven cylindrical gear are supported in a cylindrical gear shell through two pairs of bearings; the driving gear realizes axial locking through a locking nut and is fixed on an inner half axle; the cylindrical gear shell is connected with a half axle bushing and the wheel-side gear shell end cover through a sunk screw; a wheel hub is arranged on the half axle bushing through a wheel hub bearing, and is axially locked and positioned through the locking nut; and an outer half axle is connected with the driven cylindrical gear through a spline and is fixed on the wheel hub through a bolt. The wheel-side reducer is a single pair of externally-engaged cylindrical gears. On the basis of meeting the passing properties of military vehicles and off-road vehicles, the full-floating half axle and externally-engaged cylindrical gear portal drive axle furthest improves the whole vehicle ground clearance and carrying capacity, and reduces the cost.
Description
Technical field
The present invention relates to a kind of fully floating axle, externally-engaged cylindrical gear portal drive axle, belong to auto manufacturing, be applicable to all types of commercial vehicle/comm..vehicles, be primarily aimed at military car and cross-country car.
Background technology
Present most commercial vehicle/comm..vehicle drive axle structure mostly adopt the single-stage reduction axle of no wheel reduction gear, or wheel reduction gear is the dual-ratio reduction device bridge of planet circular system (band internally toothed annulus).Because the main reduction gear diameter of single-stage reduction axle is bigger, causes the car load ground Clearance too small, therefore be not suitable for the use of military-designed vehicle and cross-country car; Expansion and development along with domestic military-designed vehicle and cross-country car market, crossing ability to car load has had the higher more exacting requirements that reaches, the dual-ratio reduction bridge of planet circular system hub reduction, though its main reduction gear diameter reduces to some extent, its ground Clearance still can not be satisfied the requirement of car load crossing ability.
In addition, planet circular system hub reduction drive axle, its one-sided limit general 4-6 gear of taking turns, its number of components is many, and structure is loaded down with trivial details, and driving efficiency is low, and it is bad to fall heavy index, has increased manufacturing, assembling and maintenance use cost.
Summary of the invention
The object of the present invention is to provide a kind of fully floating axle, externally-engaged cylindrical gear portal drive axle, is on the basis of having satisfied military-designed vehicle and cross-country car car load crossing ability, has improved car load ground Clearance and load-carrying capacity to greatest extent; Reduced cost.
Technical scheme of the present invention is achieved in that a kind of fully floating axle, externally-engaged cylindrical gear portal drive axle, it is characterized in that: a pair of externally-engaged cylindrical gear is arranged in drive axle wheel limit one side, steering swivel is wheel heel teeth hub end cap, driving and driven cylindrical wheel passes through two pairs of bearings in cylindrical gear shell, driving wheel is realized axial locking by jam nut, and is fixed on the inner shaft; Cylindrical gear shell is connected with flathead screw with axle tube, wheel heel teeth hub end cap; Wheel hub relies on hub bearing to be installed on the axle tube, by jam nut axial locking, location; Outer semiaxis connects with driven cylindrical gear by spline, and is fixed by bolts on the wheel hub; Wheel reduction gear is single to externally-engaged cylindrical gear.
Good effect of the present invention is to have improved main reduction gear height and car load ground Clearance, effectively improves the car load crossing ability; Simultaneously, the outer semiaxis structure of full-floating makes this semiaxis only bear torque in theory and not bear moment of flexure, and its moment of flexure is almost all born by axle tube, thereby has improved whole bridge load-carrying capacity; Simple in structure, number of components is promptly taken turns the only a pair of gear in limit less, the driving efficiency height, and it is good to fall heavy index, and cost is lower; Have higher whole bridge load-carrying capacity, be more suitable in, heavy-duty off-road vehicle uses.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is an assembling scheme drawing of the present invention
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing: as Fig. 1, shown in 2, a kind of fully floating axle, externally-engaged cylindrical gear portal drive axle, by tire 1, steering swivel (wheel heel teeth hub end cap) 2, active cylindrical wheel 3, active cylindrical wheel bearing 4, wheel limit input shaft 5, main reduction gear 6, semiaxis 7, driven cylindrical gear bearing 8, driven cylindrical gear 9, wheel heel teeth hub 10, hub bearing 11, Hub assembly 12, axle tube 13 compositions such as grade, it is characterized in that: a pair of externally-engaged cylindrical gear is arranged in drive axle wheel limit one side, steering swivel is wheel heel teeth hub end cap 2, main, driven cylindrical gear 3,9 are supported in the cylindrical gear shell by active cylindrical wheel bearing 4 and driven cylindrical gear bearing 8, driving wheel is realized axial locking by jam nut, and is fixed on the inner shaft 7; Cylindrical gear shell is connected with axle tube 13, wheel heel teeth hub end cap 2 usefulness flathead screws; Wheel hub relies on hub bearing 11 to be installed on the axle tube 13, by jam nut axial locking, location; Outer semiaxis (fully floating axle) connects with driven cylindrical gear 9 by spline, and is fixed by bolts on the wheel hub.Wheel reduction gear is single to externally-engaged cylindrical gear.
Steering swivel (wheel heel teeth hub end cap) 2, wheel heel teeth hub 10, axle tube 13 usefulness screws connect as one, as basic body frame; The main reduction gear output torque conducts to initiatively cylindrical wheel 3, driven cylindrical gear 9 and semiaxis 7 by wheel limit input shaft 5, at last to Hub assembly 12; The vertical load and the side force of tire of whole bridge are conducted on the axle tube 13 by hub bearing 11 by Hub assembly 12; Semiaxis 7 only is subjected to moment of torsion, and is not subjected to moment of flexure.This kind structure, the service life of having improved semiaxis greatly.Make that each parts is stressed more to become reasonable.The arrangement of externally-engaged cylindrical gear (on the driving wheel, under the flower wheel) makes the whole bridge ground Clearance improve a gear center distance, has improved the crossing ability of car load greatly.
Claims (1)
1, a kind of fully floating axle, externally-engaged cylindrical gear portal drive axle, by tire (1), steering swivel (2), active cylindrical wheel (3), active cylindrical wheel bearing (4), wheel limit input shaft (5), main reduction gear (6), semiaxis (7), driven cylindrical gear bearing (8), driven cylindrical gear (9), wheel heel teeth hub (10), hub bearing (11), Hub assembly (12), axle tube compositions such as (13), it is characterized in that: a pair of externally-engaged cylindrical gear is arranged in drive axle wheel limit one side, steering swivel is wheel heel teeth hub end cap (2), main, driven cylindrical gear (3), (9) by initiatively cylindrical wheel bearing (4) and driven cylindrical gear bearing (8) are supported in the cylindrical gear shell, driving wheel is realized axial locking by jam nut, and is fixed on the inner shaft (7); Cylindrical gear shell is connected with flathead screw with axle tube (13), wheel heel teeth hub end cap (2); Wheel hub relies on hub bearing (11) to be installed on the axle tube (13), by jam nut axial locking, location; Outer semiaxis connects with driven cylindrical gear (9) by spline, and is fixed by bolts on the wheel hub; Wheel reduction gear is single to externally-engaged cylindrical gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810051081A CN101648495A (en) | 2008-08-15 | 2008-08-15 | Full-floating half axle and externally-engaged cylindrical gear portal drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810051081A CN101648495A (en) | 2008-08-15 | 2008-08-15 | Full-floating half axle and externally-engaged cylindrical gear portal drive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101648495A true CN101648495A (en) | 2010-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810051081A Pending CN101648495A (en) | 2008-08-15 | 2008-08-15 | Full-floating half axle and externally-engaged cylindrical gear portal drive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101648495A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629800A (en) * | 2012-02-21 | 2012-08-08 | 合肥新生代电动马达系统有限公司 | Concentric type wheel edge driving system using disc-type motor |
| CN105882315A (en) * | 2016-04-28 | 2016-08-24 | 中国第汽车股份有限公司 | Semi-floating half-shaft and external gearing cylindrical gear gate type driving axle wheel edge structure |
| 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 |
| WO2023093890A1 (en) * | 2021-11-29 | 2023-06-01 | 比亚迪股份有限公司 | Hub reduction gear system, and vehicle |
-
2008
- 2008-08-15 CN CN200810051081A patent/CN101648495A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629800A (en) * | 2012-02-21 | 2012-08-08 | 合肥新生代电动马达系统有限公司 | Concentric type wheel edge driving system using disc-type motor |
| CN102629800B (en) * | 2012-02-21 | 2014-06-25 | 合肥新生代电动马达系统有限公司 | Concentric type wheel edge driving system using disc-type motor |
| CN105882315A (en) * | 2016-04-28 | 2016-08-24 | 中国第汽车股份有限公司 | Semi-floating half-shaft and external gearing cylindrical gear gate type driving axle wheel edge structure |
| 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 |
| WO2023093890A1 (en) * | 2021-11-29 | 2023-06-01 | 比亚迪股份有限公司 | Hub reduction gear system, and vehicle |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA FAW CO., LTD. Free format text: FORMER OWNER: CHINESE AUTO GROUP CO NO.1 Effective date: 20111103 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20111103 Address after: 130011 Changchun Province, West New Economic Development Zone, Dongfeng Street, No. 2259, No. Applicant after: China FAW Group Corporation Address before: 130011 Dongfeng Street, Jilin, Changchun, No. 2259 Applicant before: China FAW Group Corporation |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100217 |