CN202879241U - Turnaround type rear drive axle - Google Patents
Turnaround type rear drive axle Download PDFInfo
- Publication number
- CN202879241U CN202879241U CN 201220379455 CN201220379455U CN202879241U CN 202879241 U CN202879241 U CN 202879241U CN 201220379455 CN201220379455 CN 201220379455 CN 201220379455 U CN201220379455 U CN 201220379455U CN 202879241 U CN202879241 U CN 202879241U
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- driving gear
- order
- axle
- shaft
- transmission
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Abstract
The utility model discloses a turnaround type rear drive axle, and relates to the field of automobile transmission. Based on a traditional drive axle structure, a first-level transmission gear pair (2 and 8) is added at an input end of the drive axle, and an input end of a first-level driving gear shaft (2) is opposite to an input end of a second-level driving bevel gear shaft (9). Compared with a traditional drive axle, on the condition that relative arrangement of the existing structure is not changed, the newly-added transmission gear pair adjusts the transmission input direction of the drive axle by 180 degrees. The turnaround type rear drive axle is mainly used in a rear-drive automobile with an engine located longitudinally on the rear portion, arranging space of a transmission shaft can be effectively increased, so that the engine and a gear box can be arranged close to a rear axle, and accordingly rear overhang length is shortened, and rear-longitudinal arrangement and rear-drive arrangement of an automobile with a short automobile body are achieved.
Description
Technical field
The utility model has been announced a kind of later formula rear driving axle, relates to the transmission field of automobile, mainly applies to the vehicle of engine at extreme rear rear-guard.
Background technology
Traditional drive axle consists of speed reduction gearing by the one-level bevel gear set usually, adds that the diff of rear end and semiaxis consist of the bridge transmission device.In order to obtain enough reduction ratios, the common radius ratio of the driven gear of bevel gear set is larger, and the in addition length of driving gear shaft is so that the flange position of connection for transmission shaft universal-joint is distant from the axial line distance of bridge.Drive on the vehicle of type of arrangement in rear vertical postpone, reasonable for the angle that guarantees transmission shaft, improve driving efficiency, transmission shaft must guarantee certain length.The position that the type dynamic assembly is arranged so traditional rear vertical postpone is driven is usually distant from the distance of rear axle, so that the relatively short vehicle of short rear overhang and vehicle body overall length can't adopt this arrangement form.
Summary of the invention
The utility model provides a kind of later formula rear driving axle, indulge afterwards postpone for tradition and drive the limitation optimization rear axle structure that bridge exists, greatly enlarged the vertical installing space of transmission shaft, so that dynamic assembly is more near rear axle, thereby the shortening rear overhang is realized the arrangement form that the rear vertical postpone of shorter vehicle body vehicle is driven.
The utility model has adopted following technical scheme: a kind of later formula rear driving axle is characterized in that: described later formula rear driving axle comprises first order driving gear pair and second stage driving gear pair; Wherein, first order driving gear pair comprises first order driving gear shaft and first order driven gear; Second stage driving gear pair comprises second stage driving gear shaft and second stage driven gear; The input of the input end of first order driving gear shaft and second stage driving gear shaft is opposite; First order driven gear and second stage driving gear shaft are coaxial.
The utlity model has following beneficial effect: described later formula rear driving axle, increased the one-level transmission device, can at widely scope adjustment base ratio, adapt to the transmission of large base ratio; Two-stage is turned one's head the formula structure, from rear end input transmission, changes the transmission hand of rotation twice, so that most front-engine rear-drive driving engine can both adapt to the requirement of rearmounted rear-guard transmission direction; Before later the shaft universal-joint mounting flange of formula structure is positioned at rear axle, can effectively increase the arrangement space of backward transmission shaft, so that the layout of driving engine and change speed gear box more near rear axle, can effectively reduce wheelbase rear overhang ratio, greatly promote the car load driver comfort; Apply to simultaneously indulge the vehicle that postpone is driven behind the driving engine, rear overhang length reduces, so that the vehicle of short vehicle body can be realized the arrangement form that rear vertical postpone is driven.
Description of drawings
Fig. 1 is that the utility model is turned one's head formula rear driving axle structure cutaway view;
Fig. 2 is the utility model arrangement scheme drawing;
Among the figure: 1. end cap; 2. first order driving gear shaft; 3. bearing; 4. hubcap; 5. seal ring; 6. flange; 7. rear-axle casing; 8. first order driven gear; 9. second stage driving gear shaft; 10. second stage driven gear; 11. centre housing; 12. diff; 13. front axle; 14. formula rear driving axle later; 15. rear drive semiaxis; 16. transmission shaft; 17. transmission assembly; 18. engine assembly.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with specific embodiments and the drawings, the utility model further is elaborated.
As shown in Figure 1, turn one's head a kind of example structure cutaway view of formula drive axle for the utility model.Described later formula rear driving axle has increased first order driving gear pair (2,8) at the input end of transmission on the architecture basics of traditional drive axle.Later the formula rear driving axle also comprises diff (12) and rear drive semiaxis (15).Described first order driving gear pair is that straight-tooth gear is secondary, comprises first order driving gear shaft 2 and first order driven gear 8.First order driving gear shaft 2 is assemblied on end cap 1 and the centre housing 11 by pair of bearings 3, and the torque that the parameter of two gears is mainly transmitted by need, base ratio distribute and distance of shaft centers determines.Second stage driving gear pair (9,10) is traditional cone gear, comprises second stage driving gear shaft 9 and second stage driven wheel of differential 10.First order driven gear 8 and second stage driving gear shaft 9 are coaxial, and second stage driven gear 10 is assemblied on traditional diff 12, and diff connects left and right sides semiaxis, realize the transmission differential function.These movement parts by bearing assemble in the closed shell that is consisted of by end cap 1, hubcap 4, seal ring 5, rear-axle casing 7, centre housing 11 etc.
The input of the input end of first order driving gear shaft 2 and second stage driving gear shaft 9 is opposite, namely with respect to traditional drive axle, is keeping original structure to arrange that in the constant situation, the transmission input direction of newly-increased transmission gear adjutant drive axle has been adjusted 180 °.The input end of first order driving gear shaft 2 is the flange 6 of connection for transmission shaft universal-joint, and mouth has seal ring 5 to prevent that lubricating oil from oozing out.The utilization of this structure is so that flange 6 is positioned at the front end of drive axle axle, and apart from axle one segment distance arranged.The length of first order driving gear shaft 2 satisfies at the universal-joint of connection for transmission axle 16 rear driving axle ends still at the front end of rear drive semiaxis 15 axis, and as far as possible away from rear drive semiaxis 15 axis, to increase the installing space of propeller shaft length direction.
Figure 2 shows that the utility model drives the scheme drawing of layout in the rear vertical postpone of car load realization, can find out that therefrom flange 6 connection for transmission axle rear propeller shafts 16 will be crossed over rear drive semiaxis 15.Compare traditional arrangement form, transmission shaft 16 has obtained more abundant vertical arrangement space, fully guaranteeing propeller shaft length improving on the driving efficiency basis, the barycenter of dynamic assembly can from rear axle more close to, effectively reduce rear overhang length, promote the car load traveling comfort.Simultaneously, so that the vehicle of shorter vehicle body also can realize the arrangement form that rear vertical postpone is driven, design plan is more flexible.
Selecting first order driving gear pair (2, during the parameters such as the number of teeth 8) and modulus, except considering to regulate the function of transmission intensity and base ratio, need consider to adjust simultaneously the distance of shaft centers of diaxon, the universal-joint that is connected with flange 6 for transmission shaft 16 provides abundant motion space, prevents that transmission shaft and rear-axle casing from moving interference.
The content that is not described in detail in this specification sheets belongs to the known prior art of this area professional and technical personnel.
The above-described specific embodiment; that the purpose of this utility model, technical scheme and beneficial effect have been carried out further detailed description; institute is understood that; the above only is specific embodiment of the utility model; and be not used in and limit protection domain of the present utility model; all any modifications of within spirit of the present utility model and principle, making, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. formula rear driving axle later, it is characterized in that: described later formula rear driving axle comprises first order driving gear pair (2,8) and second stage driving gear pair (9,10); Wherein, first order driving gear pair comprises first order driving gear shaft (2) and first order driven gear (8); Second stage driving gear pair comprises second stage driving gear shaft (9) and second stage driven gear (10); The input of the input end of first order driving gear shaft (2) and second stage driving gear shaft (9) is opposite; First order driven gear (8) and second stage driving gear shaft (9) are coaxial.
2. later formula rear driving axle according to claim 1, it is characterized in that: described first order driving gear pair is that straight-tooth gear is secondary, and described second stage driving gear pair is bevel-gear sett.
3. later formula rear driving axle according to claim 1 and 2, it is characterized in that: the input end of first order driving gear shaft (2) is the flange (6) of connection for transmission shaft universal-joint, first order driving gear shaft (2) is assemblied on end cap (1) and the centre housing (11) by pair of bearings (3), and mouth has seal ring (5) to prevent that lubricating oil from oozing out.
4. later formula rear driving axle according to claim 1 and 2 characterized by further comprising diff (12) and rear drive semiaxis (15).
5. later formula rear driving axle according to claim 1 and 2, it is characterized in that: the length of first order driving gear shaft (2) meets the following conditions: at the universal-joint of connection for transmission axle (16) rear driving axle end still at the front end of rear drive semiaxis (15) axis, and away from rear drive semiaxis (15) axis.
6. later formula rear driving axle according to claim 1 and 2, it is characterized in that: first order driving gear pair (2,8) gear parameter and modulus are except satisfying transmission intensity and base ratio needs, and its distance of shaft centers control will be satisfied transmission shaft (16) motion and not interfere with rear-axle casing (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220379455 CN202879241U (en) | 2012-08-02 | 2012-08-02 | Turnaround type rear drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220379455 CN202879241U (en) | 2012-08-02 | 2012-08-02 | Turnaround type rear drive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202879241U true CN202879241U (en) | 2013-04-17 |
Family
ID=48070700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220379455 Expired - Fee Related CN202879241U (en) | 2012-08-02 | 2012-08-02 | Turnaround type rear drive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202879241U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455350A (en) * | 2014-12-20 | 2015-03-25 | 合肥海源机械有限公司 | Novel large-speed-ratio speed reducer assembly |
-
2012
- 2012-08-02 CN CN 201220379455 patent/CN202879241U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455350A (en) * | 2014-12-20 | 2015-03-25 | 合肥海源机械有限公司 | Novel large-speed-ratio speed reducer assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: LIU QIANG ZHANG CONGZHE Effective date: 20140915 Owner name: ROSEDALE AUTOMOBILE ENGINEERING TECHNOLOGY (BEIJIN Free format text: FORMER OWNER: WANG YU Effective date: 20140915 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100022 CHAOYANG, BEIJING TO: 100176 DAXING, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140915 Address after: Two street 100176 Eastern District of Beijing City, Daxing District Yizhuang economic and Technological Development Zone Branch No. 4 Patentee after: Ross Del Automotive Engineering Technology (Beijing) Co., Ltd. Address before: 100022, Beijing, Shuangjing, Chaoyang District Fuli city D56-801 Patentee before: Wang Yu Patentee before: Liu Qiang Patentee before: Zhang Congzhe |
|
| DD01 | Delivery of document by public notice |
Addressee: Wang Hongli Document name: Notification of Passing Examination on Formalities |
|
| DD01 | Delivery of document by public notice |
Addressee: Ross Del Automotive Engineering Technology (Beijing) Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20150802 |
|
| EXPY | Termination of patent right or utility model |