CN207111851U - A kind of automobile drive axle double gear (speed) final drive - Google Patents
A kind of automobile drive axle double gear (speed) final drive Download PDFInfo
- Publication number
- CN207111851U CN207111851U CN201721077844.1U CN201721077844U CN207111851U CN 207111851 U CN207111851 U CN 207111851U CN 201721077844 U CN201721077844 U CN 201721077844U CN 207111851 U CN207111851 U CN 207111851U
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- China
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- gear
- grades
- speed
- power input
- synchromesh
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Abstract
The utility model discloses a kind of automobile drive axle double gear (speed) final drive, power input mechanism, the power take-off mechanism being connected by intermediate gearing with the power input mechanism including exporting two gear speed by gearshift, the gear drive of two sets of not synchronized ratios is set to be engaged with two gear speed that the power input mechanism exports between the power input mechanism intermediate gearing and power take-off mechanism, the power take-off mechanism is engaged by decelerator driving gear with retarder driven gearwheel.The utility model is compared with common decelerator, the double gear in decelerator can be obtained, in the case where engine power and speed changer output speed and torque keep constant, smaller overall ratio, automobile can be made to obtain the faster speed of service, under the same conditions, the fuel consumption of equivalent, it can improve the speed of service of automobile, the distance of traveling is also farther, and the fuel-economy of automobile is more preferable.
Description
Technical field
The utility model belongs to automobile mechanical device, and in particular to a kind of automobile drive axle double gear (speed) final drive.
Background technology
Present automobile drive axle generally uses one-level main reducing gear, and in order to improve the travel speed of automobile, typically adopt
With less speed ratio of main reducer, powerful engine is reconfigured to realize increase torsional forces, improves faster speed, so
It is unfavorable for the fuel economy of automobile.And large-scale truck is previously used for, such as CA141, the Yellow River JN150,151,161,162
Etc. serial or old-fashioned red rock car etc., used is two speed planetary final drive, and its top gear is used in general road
Road travels, and low or first gear is used for larger tractive force and travelled on the road of difficulty, makes the speed of main deceleration than increase, speed drop
Low, this decelerator is actually the effect for serving auxiliary transmission, does not play the purpose of saving fuel oil；And this master subtracts
Have to operate after parking during speed conversion high, low speed shelves, there is certain limitation.
Utility model content
The purpose of this utility model is to provide a kind of dynamic property for giving full play to automobile and improves the vapour of fuel economy
Car drive axle double gear (speed) final drive.
To realize that the technical scheme that the utility model purpose uses is as follows：
Automobile drive axle double gear (speed) final drive provided by the utility model, including two gear speed are exported by gearshift
The power input mechanism of degree, the power take-off mechanism being connected by intermediate gearing with the power input mechanism, in described
Between between transmission device and power take-off mechanism set two sets not synchronized ratios gear drive and the power input mechanism
Two gear speed of output are engaged, and the power take-off mechanism passes through decelerator driving gear and retarder driven gearwheel phase
Coordinate.
Power input shaft that the power input mechanism includes being located in reducing gearbox body, it is actively installed on power input
One grade of synchromesh gear and two grades of synchromesh gears on axle, be located between one grade of synchromesh gear and two grades of synchromesh gears with it is described
Synchronizer gear sleeve that power input shaft is fixedly connected, the pull-fork assembly being located on synchronizer gear sleeve, the power input mechanism lead to
Cross one grade of synchromesh gear and two grades of synchromesh gears export two gear speed.
The power take-off mechanism include be located in reducing gearbox body driving gear shaft, be located on the driving gear shaft
Respectively with one grade of synchromesh gear and the corresponding first speed driven gear of two grades of synchromesh gears and two grades of driven gears.
The intermediate gearing includes the jackshaft being located in reducing gearbox body, and the jackshaft is provided with：With it is described
One grade of synchromesh gear and one grade of idler gear of first speed driven gear engagement, engage with two grades of synchromesh gears and two grades of driven gears
Two grades of idler gear groups, two grades of idler gear groups form by two gear combinations of size, wherein little gear and two grades it is same
Gear engagement is walked, gear wheel engages with two grades of driven gears；One grade of idler gear and the first speed driven gear, in two grades
Between gear train and two grades of driven gears respectively constituted the gear drive of the not synchronized ratio of described two sets.
Beneficial effect：
It is of the present utility model to be mainly characterized by being provided with intermediate transmission between power input mechanism and power take-off mechanism
Device, the gear drive of two sets of not synchronized ratios is provided between intermediate gearing and power take-off mechanism, two can be obtained
The different gearratio of kind, is engaged with conventional transmission device, can obtain the double gear in speed changer.Decelerator driving gear with
It is defeated by changing large and small gear and power in two grades of idler gear groups in the case that retarder driven gearwheel speed is than keeping constant
Enter the ratio between two grades of synchromesh gear numbers of teeth of axle, reduce input shaft to the overall ratio between retarder driven gearwheel to reach, starting
In the case that acc power and speed changer output speed and torque keep constant, smaller overall ratio, it can obtain automobile faster
The speed of service, under the same conditions, the fuel consumption of equivalent, can improve the speed of service of automobile, the distance of traveling
Farther, the fuel economy of such automobile just can sufficiently be embodied；And the utility model can be according to running car
Gear needed for needing conversion whenever and wherever possible rapidly and efficiently, automobile engine is played its optimum performance, improve automobile various
The adaptability travelled on road.
The technical solution of the utility model is further illustrated below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is Fig. 1 left view profile.
Fig. 3, Fig. 4 are use state diagram of the present utility model respectively.
In figure：1-retarder driven gearwheel, 2-decelerator driving gear, 3-two grades of driven gears, 4-actively
Gear shaft, 5-jackshaft, 6-first speed driven gear, 7-one grade of idler gear, 8-one grade of synchromesh gear, 9-power
Input shaft, 10-pull-fork assembly, 11-synchronizer gear sleeve, 12-two grades of synchromesh gears, 13-two grades of idler gear groups,
131-little gear, 132-gear wheel, 14-reducer shell.
Embodiment
See Fig. 1, Fig. 2, automobile drive axle double gear (speed) final drive provided by the utility model, including exported by gearshift
The power input mechanism of two gear speed, the output machine being connected by intermediate gearing with the power input mechanism
Structure, the gear drive of two sets of not synchronized ratios and the power are set between the intermediate gearing and power take-off mechanism
Two gear speed of input mechanism output are engaged；The power input mechanism, intermediate gearing, power take-off mechanism point
Power input shaft 9, jackshaft 5 and the driving gear shaft 4 that Bao Kuo be located in reducer shell 14；On the power input shaft 9
Be movably equipped with one grade of synchromesh gear 8 and two grades of synchromesh gears 12, between one grade of synchromesh gear 8 and two grades of synchromesh gears 12 be provided with
The synchronizer gear sleeve 11 that power input shaft 9 is fixedly connected, synchronizer gear sleeve 11 are provided with pull-fork assembly 10；The driving gear shaft
4 are provided with corresponding with one grade of synchromesh gear 8 and two grades of synchromesh gears 12 first speed driven gear 6 and two grades of driven gears 3 respectively；
The jackshaft 5 is provided with：One grade of idler gear 7 being engaged with one grade of synchromesh gear 8 and first speed driven gear 6, with two grades it is same
Two grades of idler gear groups 13 that gear 12 and two grades of driven gears 3 engage are walked, two grades of idler gear groups 13 are by two gears of size
131st, 132 combine, wherein little gear 131 is engaged with two grades of synchromesh gears 12, and gear wheel 132 is nibbled with two grades of driven gears 3
Close；One grade of idler gear distinguishes structure with described 6, two grades of idler gear groups 13 of first speed driven gear and two grades of driven gears 3
Into the gear drive of described two sets not synchronized ratios；Driving gear shaft 4 be provided with decelerator driving gear 2 and decelerator from
Moving gear 1 is meshed.
9, one grades of power input shaft, 8, two grades of the synchromesh gear synchromesh gear 12 constitutes described power input mechanism；
The synchronizer gear sleeve 11, the pull-fork assembly 10 being located on synchronizer gear sleeve 11 constitute described gearshift；The centre
5, one grades of idler gears 7 of axle and two grades of idler gear groups 13 constitute described intermediate gearing.
The power input shaft 9 is meshed together with synchronizer gear sleeve 11 by internal tooth is strong, passes through gearshift and work
Cooperation output two gear speed of height of one grade of synchromesh gear 8 of the dynamic left and right on input shaft 9 and two grades of synchromesh gears 12
Degree.Stirring pull-fork assembly 10 to the left makes synchronizer gear sleeve 11 be engaged with one grade of gear of synchronizer 8, and one grade of gear of synchronizer 8 passes through
One grade of idler gear 7 drives first speed driven gear 6 and driving gear shaft 4 to rotate, and thus constitutes the utility model low or first gear
The method of operation（As shown in Figure 3）；Stirring fork component 10 to the right makes synchronizer gear sleeve 11 be engaged with two grades of synchromesh gears 12, and two
Shelves synchromesh gear 12 drives two grades of driven gears 3 and driving gear shaft 4 to rotate by two grades of idler gear groups 13, due to two grades together
Walking gear 12 is meshed together with the little gear of two grades of idler gear groups 13 131, the gear wheel of two grades of idler gear groups 13
132 mesh together with two grades of driven gears 3 again, thus constitute the method for operation of the utility model top gear（Such as Fig. 4 institutes
Show）.
Application example
Assuming that the number of teeth of two grades of synchromesh gears 12 is 27 teeth, the number of teeth of little gear 131 is 24 in two grades of idler gear groups 13
The ratio between number of teeth of little gear 131 is 27 in tooth, two grades of synchromesh gears 12 and two grades of idler gear groups 13：24=1.125；In two grades
Between in gear 13 gear wheel 132 mesh together with two grades of driven gears 3, two grades of driven gears 3 are integrally fixed at driving gear shaft 4
On, it is assumed that the number of teeth of gear wheel 132 is 27 teeth in two grades of idler gear groups 13, and the number of teeth of two grades of driven gears 3 is 24 teeth, at this moment
The ratio between two grades of idler gear groups 13 and the number of teeth of two grades of driven gears 3 are 27：24=1.125；Therefore power input shaft 9 is with slowing down
Between device driving gear 2 total speed than be little gear 131 in two grades of synchromesh gears 12 and two grades of idler gear groups 13 the number of teeth it
The ratio 1.125 of ratio is superimposed the ratio of the ratio between number of teeth of gear wheel 132 and two grades of driven gears 3 in two grades of idler gear groups 13 again
1.125, the ratio being finally superimposed is for 1：1.25, that is to say, that assuming that the rotating speed of power input shaft 9 is 1000 revs/min, then
The output speed of driving gear shaft 4 is 1250 revs/min, and overall ratio lowers 25%, it is understood that is in engine power and speed change
The use of top gear of the present utility model can be in theory that automobile saves hundred in the case that device output speed and torque keep constant
/ bis- ten five fuel oil, it is main reducing gear to influence car deceleration to increase the main relevant device turned round, and its fast ratio can guarantee that automobile
There are the torsional forces and tractive force of abundance, to adapt to driving requirements of the automobile in different kinds of roads, the utility model both maintains vapour
This original fast ratio of car, main reducing gear will not be slowed down again and increase the big influence of the function of turning round generation, truck can be appropriate
This overall ratio is reduced, light-duty vehicle or commercial vehicle can suitably increase this overall ratio, use flexibly, wide adaptability.
Claims (4)
- A kind of 1. automobile drive axle double gear (speed) final drive, it is characterized in that including passing through the dynamic of gearshift two gear speed of output Power input mechanism, the power take-off mechanism being connected by intermediate gearing with the power input mechanism, the intermediate transmission Gear drive and the power input mechanism output of two sets of not synchronized ratios are set between device and power take-off mechanism Two gear speed are engaged, and the power take-off mechanism is engaged by decelerator driving gear with retarder driven gearwheel.
- 2. automobile drive axle double gear (speed) final drive according to claim 1, it is characterized in that the power input mechanism includes The power input shaft that is located in reducing gearbox body, one grade of synchromesh gear being actively installed on the power input shaft and two grades of synchronizations Gear, it is located at the synchronizer tooth being fixedly connected between one grade of synchromesh gear and two grades of synchromesh gears with the power input shaft The pull-fork assembly for covering, being located on synchronizer gear sleeve, the power input mechanism pass through one grade of synchromesh gear and two grades of synchronizations Gear exports two gear speed.
- 3. automobile drive axle double gear (speed) final drive according to claim 2, it is characterized in that the power take-off mechanism includes The driving gear shaft that is located in reducing gearbox body, be located on the driving gear shaft respectively with one grade of synchromesh gear and two grades First speed driven gear corresponding to synchromesh gear and two grades of driven gears.
- 4. automobile drive axle double gear (speed) final drive according to claim 3, it is characterized in that the intermediate gearing includes The jackshaft being located in reducing gearbox body, the jackshaft are provided with：Nibbled with one grade of synchromesh gear and first speed driven gear The one grade of idler gear closed, two grades of idler gear groups being engaged with two grades of synchromesh gears and two grades of driven gears, in described two grades Between gear train formed by two gear combinations of size, wherein little gear engages with two grades of synchromesh gears, gear wheel and two grades it is driven Gear engages；One grade of idler gear is distinguished with the first speed driven gear, two grades of idler gear groups and two grades of driven gears Constitute the gear drive of two sets of described not synchronized ratios.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721077844.1U CN207111851U (en) | 2017-08-27 | 2017-08-27 | A kind of automobile drive axle double gear (speed) final drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721077844.1U CN207111851U (en) | 2017-08-27 | 2017-08-27 | A kind of automobile drive axle double gear (speed) final drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207111851U true CN207111851U (en) | 2018-03-16 |
Family
ID=61576851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721077844.1U Expired - Fee Related CN207111851U (en) | 2017-08-27 | 2017-08-27 | A kind of automobile drive axle double gear (speed) final drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207111851U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413056A (en) * | 2020-11-09 | 2021-02-26 | 金华市瑞普机械制造有限公司 | Device and process for improving machining precision of drive axle differential |
-
2017
- 2017-08-27 CN CN201721077844.1U patent/CN207111851U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413056A (en) * | 2020-11-09 | 2021-02-26 | 金华市瑞普机械制造有限公司 | Device and process for improving machining precision of drive axle differential |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 Termination date: 20180827 |