CN101579996B - Automobile overhead driving front axle - Google Patents
Automobile overhead driving front axle Download PDFInfo
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- CN101579996B CN101579996B CN2009101118601A CN200910111860A CN101579996B CN 101579996 B CN101579996 B CN 101579996B CN 2009101118601 A CN2009101118601 A CN 2009101118601A CN 200910111860 A CN200910111860 A CN 200910111860A CN 101579996 B CN101579996 B CN 101579996B
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- miniature gears
- axle
- serrate slot
- front axle
- tooth
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Abstract
The invention relates to an automobile front axle structure, in particular to an automobile overhead driving front axle. The structure of the automobile overhead driving front axle consists of a driving front axle reducer assembly, an axle shell, an internal half axle, an external half axle, a cross axle, an overhead gear case and a hub; the reducer assembly consists of an input axle, a differential mechanism assembly, a bearing and a bearing seat; the automobile overhead driving front axle is characterized in that the external half axle consists of a small gear and a connection head that are separated; the internal side end surface of the small gear is provided with a plurality of radial tooth-shaped troughs uniformly; the cylindrical lug boss end surface with a connection head structure is provided with a plurality of corresponding radial teeth; the connection of the small gear and the connection head is characterized in that the radial teeth are inserted into the tooth-shaped troughs and a bolt passes through the central hole of the small gear in a threaded way; the input shaft of the reducer assembly is arranged at the right side and the differential mechanism assembly is turned over by 180 degrees at the internal edge of the axle shell. The automobile overhead driving front axle has the advantages that the external half axle fission executes butted structure of the radial teeth and the tooth-shaped troughs so as to provide sufficient design space for shortening the tooth width of the small gear and the external round diameter of the gear, and the steering and direction-changing are realized by that the input shaft of the reducer assembly is arranged at the right side and the differential mechanism assembly is turned over by 180 degrees.
Description
Technical field:
The present invention relates to automobile front axle structure, particularly automobile overhead driving front axle.
Prior art:
Need automobile front and back bridge overhead for rugged hill path, the soft road of earth, can't exercise in order to avoid the front and back bridge touches the road surface.Bridge is overhead before and after needing, and promptly bridge intermediate solid drive shaft axial line is higher than the wheel hub line of centers, has raised the axle housing terrain clearance comparatively speaking.For four-wheel drive car, back bridge construction is simple relatively, the back axle horizontal drive shaft does not directly dock with wheel hub, as long as the transmission gear engagement enforcement transmission of in the terminal gear of socket of back axle horizontal drive shaft and wheel hub, setting up, and the rise height of engaging gear width between centers to be exactly overpass raise axle housing.And propons has steering structure, and its transmission is divided into inner shaft, outer semiaxis, finish universal-joint by center cross between the inside and outside semiaxis and connect, so after being designed to elevated structure, outer semiaxis outside axle head must be realized meshing with the gear wheel transmission by the socket gear.Outer semiaxis is made up of outer axis body and connector, the connector structure is a vertical body and vertical body two ends two weft elements that side direction extends in level, and respectively be provided with medium pore on the weft element, and two medium pores are realized being connected with the center cross fit, and vertical external side is extended an outer axis body.Be connected and fixed a miniature gears by key on the outer axis body of connector, big gear wheel fixing on this miniature gears and the hub spindle realizes engaged transmission, each cover unification bearing of miniature gears two ends, and two bearings cylindrical fixed cover is on the overpass gear housing.
Speed reducer assembly is by having differential assembly by female splines output cover of the input shaft of importing cone gear, both sides, being fixed on bearing and the bearing seat that being used in the axle housing locate the output cover and forming, and its input shaft is arranged on the left side of retarder center line;
Many a pair of gear transmissions between outer semiaxis of elevated drive front axle and the wheel hub, thereby wheel hub rotates break-in.Therefore must rotate break-in at deceleration assembly middle gear output cover, or increase transition change gear is realized the break-in transmission in automobile transfer transmission gearbox.
But if the transition change gear is set in the transfer transmission gearbox, make the structural change of transfer transmission gearbox too big, cost increases.
There is following defective in the such structure of prior art: at first, it is the smaller the better that outer semiaxis and wheel hub are connected the horizontal direction space length, because distance is big, stability of automobile is bad, therefore require the wheel facewidth on outer semiaxis miniature gears and the wheel hub the smaller the better, structure is compact as far as possible.Secondly, under big or small gear tooth width required to try one's best little situation, the number of teeth, modulus were satisfying under the driving torque prerequisite, and big or small top circle is also as far as possible little, and the overpass gear housing just can be little like this, and structure just can be compact.They are three years old, the miniature gears volume is as far as possible little, but miniature gears is to be connected by key with the outer axis body of outer semiaxis, no matter be singly-bound or spline form, all is a difficult designing requirement for miniature gears medium pore cylindrical to the size radial wall thickness between the tooth root circle, because radial wall thickness is more little, it is more little to satisfy the miniature gears cylindrical, and must set up keyway on the radial wall thickness, this keyway has weakened the intensity of radial wall thickness, impassabitity lengthening facewidth connection length satisfies again simultaneously, because the facewidth is big more, stability of automobile is poor more.In view of above 3 requirements and contradiction, must there be a structure not only compact but also can satisfy the space connection structure that transmission of torque requires.
Many a pair of gear transmissions between outer semiaxis of elevated drive front axle and the wheel hub, thereby wheel hub rotates break-in.Therefore must rotate break-in at deceleration assembly middle gear output shaft, or in automobile transfer transmission gearbox, increase transition change gear realization break-in transmission.
But if the transition change gear is set in the transfer transmission gearbox, make the structural change of transfer transmission gearbox too big, cost increases.
Summary of the invention:
The objective of the invention is to overcome above-mentioned defective, a kind of automobile overhead driving front axle is provided.
The solution of the present invention is: outer semiaxis is made up of miniature gears, the connector of split, speed reducer assembly is by having differential assembly by female splines of the input shaft of importing cone gear, both sides, being fixed on bearing and the bearing seat that being used in the axle housing locate the output cover and forming, it is characterized in that: miniature gears two ends step cylinder is socketed in two bearings that are fixed on the elevated gearbox and realizes the location, miniature gears is provided with medium pore, the miniature gears inner side end is uniform a plurality of radially serrate slot, and the serrate slot cross-sectional plane is for falling echelon form; The connector structure is that vertical external side is extended a cylinder boss, the cylinder boss end face is corresponding to the uniform a plurality of radial teeth of miniature gears inner side end serrate slot, this radial teeth cross section is an echelon form, its profile of tooth is identical with miniature gears profile of tooth groove, and when satisfying radial teeth and inserting the serrate slot closed contact, radial teeth tooth top and serrate slot bottom land still have little gap, and connector cylinder boss central authorities are provided with internal thread through hole; Miniature gears and connector are connected to after radial teeth is closely inserted serrate slot, have a bolt to pass the miniature gears medium pore, and bolt front end outside thread is implemented to be threaded with the central negative thread of connector; The input shaft of speed reducer assembly is arranged on the right side of speed reducer assembly center line, differential assembly turns over turnback around the speed reducer assembly center line in axle housing, it is meshed with the input shaft cone gear on dislocation right side with the right side of input shaft cone gear ingear clutch plate tooth at the speed reducer assembly center line.
The invention has the advantages that: radial teeth and serrate slot docking structure are implemented in outer semiaxis split, for the facewidth of miniature gears shortens, the top circle reduced provides sufficient design spacing, the profile of tooth butt joint can make the butt joint radius be extended to the pinion gear teeth root radius, connect radius much larger than key, therefore transmit equal moment, the miniature gears excircle dimension can be much smaller.Satisfying under the equal moment transmission requirement the compact requirement of elevated drive front axle outside drive mechanism, volume-diminished.The speed reducer assembly input shaft right side is put and turned over turnback with differential assembly and realize turning to break-in, and is rational in infrastructure simple.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is outer semiaxis connector structural representation.
Fig. 3 is the right elevation of Fig. 2.
Fig. 4 is outer semiaxis connector profile of tooth enlarged drawing.
Fig. 5 is the present invention's assembly structure scheme drawing that slows down.
The specific embodiment
Structure of the present invention is made up of driving front axle deceleration assembly, axle housing 1, inner shaft 2, outer semiaxis, center cross, elevated gearbox, wheel hub 7, speed reducer assembly is by having differential assembly 10 by female splines of the input shaft 8 of importing cone gear, both sides, being fixed on bearing and the bearing seat that being used in the axle housing 1 locate output cover 9 and forming, and it is characterized in that: outer semiaxis is made up of miniature gears 4, the connector 3 of split; Miniature gears 4 two ends step cylinders are socketed in two bearings that are fixed on the elevated gearbox and realize the location, and miniature gears 4 is provided with medium pore, and miniature gears 4 inner side ends are uniform a plurality of radially serrate slot, and the serrate slot cross-sectional plane is for falling echelon form; Connector 3 structures are that vertical external side is extended a cylinder boss, the cylinder boss end face is corresponding to the uniform a plurality of radial teeth of miniature gears 4 inner side end serrate slots, this radial teeth cross section is an echelon form, its profile of tooth is identical with miniature gears 4 serrate slots, and when satisfying radial teeth and inserting the serrate slot closed contact, radial teeth tooth top and serrate slot bottom land still have little gap, and connector 3 cylinder boss central authorities are provided with internal thread through hole; Miniature gears 4 is connected to after radial teeth is closely inserted serrate slot with connector 3, has a bolt 6 to pass miniature gears 4 medium pores, and bolt 6 front end outside threads are implemented to be threaded with connector 3 central negative threads; The input shaft 8 of speed reducer assembly is arranged on the right side of speed reducer assembly center line, differential assembly 10 turns over turnback around the speed reducer assembly center line in axle housing 1, it is meshed with input shaft 8 cone gears on dislocation right side with the right side of input shaft 8 cone gear ingear clutch plate teeth at the speed reducer assembly center line.
Miniature gears 4 serrate slots are the identical straight shape groove of groove cross sectional shape, and the radial teeth cross section of connector 3 is the straight shape tooth corresponding to miniature gears 4 serrate slot shapes.
Miniature gears 4 serrate slots are that groove is the identical deep-slotted chip breaker of cross sectional shape, and the radial teeth cross section of connector 3 is the arc tooth corresponding to miniature gears 4 serrate slot shapes.
The arc tooth connects makes miniature gears 4 and connector 3 axial line right alignmenies more accurate.
During installation, earlier miniature gears 4 medial extremity bearings are inserted in miniature gears 4 medial extremity step cylinders, make fixing big gear wheel 5 engagements on miniature gears 4 and the wheel hub 7, then pass miniature gears 4 medium pores with bolt 6 after the front end thread lock on connector 3 medium pore negative threads, realized fixing with outer semiaxis disjunctor.
Clutch plate tooth upset on the differential assembly 10, with change to the input shaft 8 cone gears engagement of putting on the right side, make the 9 hand of rotation break-ins of diff location output cover, thereby make the inner shaft 2 that is inserted in its spline turn to also break-in, offset outer axle side gear pay the break-in of setting up generation, reached the maintenance wheel hub 7 former purposes that turn to.
Claims (3)
1. automobile overhead driving front axle, form by driving front axle deceleration assembly, axle housing (1), inner shaft (2), outer semiaxis, center cross, elevated gearbox, wheel hub (7), speed reducer assembly is formed by having the input shaft (8) of importing cone gear, the differential assembly (10) that there is female splines both sides, the bearing and the bearing seat that being used for location output cover (9) that is fixed in the axle housing (1), and it is characterized in that: outer semiaxis is made up of miniature gears (4), the connector (3) of split; Miniature gears (4) two ends step cylinder is socketed in two bearings that are fixed on the elevated gearbox and realizes the location, and miniature gears (4) is provided with medium pore, and miniature gears (4) inner side end is uniform a plurality of radially serrate slot, and the serrate slot cross-sectional plane is for falling echelon form; Connector (3) structure is that vertical external side is extended a cylinder boss, the cylinder boss end face is corresponding to the uniform a plurality of radial teeth of miniature gears (4) inner side end serrate slot, this radial teeth cross section is an echelon form, its profile of tooth is identical with miniature gears (4) serrate slot, and when satisfying radial teeth and inserting the serrate slot closed contact, radial teeth tooth top and serrate slot bottom land still have little gap, and connector (3) cylinder boss central authorities are provided with internal thread through hole; Miniature gears (4) is connected to after radial teeth is closely inserted serrate slot with connector (3), has a bolt (6) to pass miniature gears (4) medium pore, and bolt (6) front end outside thread is implemented to be threaded with the central negative thread of connector (3); The input shaft of speed reducer assembly (8) is arranged on the right side of speed reducer assembly center line, differential assembly (10) turns over turnback around the speed reducer assembly center line in axle housing (1), it is meshed with input shaft (8) cone gear on dislocation right side with the right side of input shaft (8) cone gear ingear clutch plate tooth at the speed reducer assembly center line.
2. automobile overhead driving front axle according to claim 1 is characterized in that miniature gears (4) serrate slot is the identical straight shape groove of groove cross sectional shape, and the radial teeth cross section of connector (3) is the straight shape tooth corresponding to miniature gears (4) serrate slot shape.
3. automobile overhead driving front axle according to claim 1 is characterized in that miniature gears (4) serrate slot is that groove is the identical deep-slotted chip breaker of cross sectional shape, and the radial teeth cross section of connector (3) is the arc tooth corresponding to miniature gears (4) serrate slot shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101118601A CN101579996B (en) | 2009-05-31 | 2009-05-31 | Automobile overhead driving front axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101118601A CN101579996B (en) | 2009-05-31 | 2009-05-31 | Automobile overhead driving front axle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101579996A CN101579996A (en) | 2009-11-18 |
| CN101579996B true CN101579996B (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101118601A Active CN101579996B (en) | 2009-05-31 | 2009-05-31 | Automobile overhead driving front axle |
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| CN (1) | CN101579996B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104590014A (en) * | 2015-01-29 | 2015-05-06 | 山东常林农业装备股份有限公司 | Four-drive self walking type multifunctional transmission device with steering axle |
| CN104626977A (en) * | 2015-01-30 | 2015-05-20 | 山东常林农业装备股份有限公司 | Four-wheel drive hydraulic mechanical continuously variable speed transmission device with steering axle |
| CN112572143B (en) * | 2019-09-27 | 2022-04-19 | 九号智能(常州)科技有限公司 | Vehicle, and driving system and driving method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1429015A (en) * | 1973-08-29 | 1976-03-24 | Hamworthy Engineering | Dropped centre axle for vehicles |
| CN1554541A (en) * | 2003-12-23 | 2004-12-15 | 苑凤山 | Suspension overhead front bridge |
| CN101214775A (en) * | 2008-01-10 | 2008-07-09 | 肖宗礼 | Car drive front axle |
| CN101301843A (en) * | 2008-05-16 | 2008-11-12 | 肖宗礼 | Roadlouse drive front axle |
| CN201405677Y (en) * | 2009-05-31 | 2010-02-17 | 晋江市连盛液压机械有限公司 | Automobile overhead front driving axle |
-
2009
- 2009-05-31 CN CN2009101118601A patent/CN101579996B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1429015A (en) * | 1973-08-29 | 1976-03-24 | Hamworthy Engineering | Dropped centre axle for vehicles |
| CN1554541A (en) * | 2003-12-23 | 2004-12-15 | 苑凤山 | Suspension overhead front bridge |
| CN101214775A (en) * | 2008-01-10 | 2008-07-09 | 肖宗礼 | Car drive front axle |
| CN101301843A (en) * | 2008-05-16 | 2008-11-12 | 肖宗礼 | Roadlouse drive front axle |
| CN201405677Y (en) * | 2009-05-31 | 2010-02-17 | 晋江市连盛液压机械有限公司 | Automobile overhead front driving axle |
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| Publication number | Publication date |
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| CN101579996A (en) | 2009-11-18 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Application publication date: 20091118 Assignee: Changsha Foton Automobile Technology Co., Ltd. Assignor: Jiangyin Liansheng Hydraulic Machinery Co., Ltd. Contract record no.: 2013430000116 Denomination of invention: Automobile overhead driving front axle Granted publication date: 20110216 License type: Exclusive License Record date: 20130729 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 362271 Fujian city of Jinjiang province Dong Shi Xiao Xiaan Eastern District 19 Patentee after: Jinjiang Xinteng Liansheng Machinery Co.,Ltd. Address before: 362271 Fujian city of Jinjiang province Dong Shi Xiao Xiaan Eastern District 19 Patentee before: JINJIANG LIANSHENG HYDRAULIC MACHINERY Co.,Ltd. |