CN207630967U - A kind of middle rear axle combination driving device - Google Patents
A kind of middle rear axle combination driving device Download PDFInfo
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- CN207630967U CN207630967U CN201721767087.0U CN201721767087U CN207630967U CN 207630967 U CN207630967 U CN 207630967U CN 201721767087 U CN201721767087 U CN 201721767087U CN 207630967 U CN207630967 U CN 207630967U
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- rear axle
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Abstract
The utility model discloses a kind of middle rear axle combination driving devices, including fixed speed ratio jackshaft, the fixed speed ratio jackshaft includes inter-axle differential, jackshaft gear set, jackshaft differential and jackshaft semiaxis, and power is transmitted to jackshaft wheel through the inter-axle differential, the jackshaft gear set, the jackshaft differential and the jackshaft semiaxis；Variable gear ratio rear axle, the variable gear ratio rear axle include speed change sliding sleeve, etc. speed ratios gear set, gear ratio gear set, differential gear set, rear axle differential, rear axle shaft, the speed change sliding sleeve is engaged with the speed ratios gear set such as described or gear ratio gear set, keeps middle rear axle speed ratio identical or different.
Description
Technical field
The utility model is related to the various vehicles and engineering machinery of double rear bridge drivens, are combined more particularly to a kind of middle rear axle
Driving device.
Background technology
Currently on the market the vehicle of all rear doube bridge drivings and engineering machinery all use fixed speed ratio middle rear axle and
Middle rear axle is same speed ratio.Due to real road situation, no matter empty wagons or fully loaded both having needed vehicle public in high speed
Road maximum speed traveling, while being also required to vehicle also can be normal in the case of common road or poor condition of road surface
Operation, and have certain climbing capacity.It is limited by speed ratio, the vehicle of current part meets high speed row using small speed ratio rear axle
Climbing capacity is insufficient when sailing condition but low-speed heave-load；Some vehicles using large speed ratio rear axle meet heavily loaded climbing capacity but
It is that highway driving needs are not achieved in maximum speed, gearbox also needs to increase overgear, and starts when running at high speed
Machine is operated in maximum (top) speed, and oil consumption is especially high.
In view of the actual state of current double rear bridge driven vehicles, the reality in different kinds of roads situation and rate request is not achieved
In the case of allow engine to run on economical consumption of fuel section always.
Utility model content
The utility model provides a kind of middle rear axle combination driving device, and technical solution is：A kind of middle rear axle combination drive
Dynamic device, including：Fixed speed ratio jackshaft, the fixed speed ratio jackshaft include inter-axle differential, jackshaft gear set, jackshaft differential
And jackshaft semiaxis, power are passed through the inter-axle differential, the jackshaft gear set, the jackshaft differential and the jackshaft semiaxis
It is delivered to jackshaft wheel；Variable gear ratio rear axle, the variable gear ratio rear axle include speed change sliding sleeve, etc. speed ratios gear set, gear ratio tooth
Wheel group, differential gear set, rear axle differential, rear axle shaft, the speed change sliding sleeve and speed ratios gear set or the gear ratio such as described
Gear set engages, and keeps middle rear axle speed ratio identical or different.
Further, the variable gear ratio rear axle further includes rear axle input gear.
Further, the jackshaft gear set includes jackshaft driving gear and jackshaft driven gear.
Further, the speed ratios gear set such as described includes etc. speed ratios driving gear and waiting speed ratios driven gear, the speed change
Include gear ratio driving gear and gear ratio driven gear than gear set, the differential gear set includes differential sliding clutch
And differential side gear.
The beneficial effects of the utility model are：
It is the vehicle of running on expressway to the most of the time, using the jackshaft of small speed ratio, rear-end ratio is also adopted
With small speed ratio, increase the gear pair of convertible speed ratio in rear axle input terminal.When vehicle on a highway when driving, keep starting
Machine is all run using small speed ratio in economic speed section, gearbox in direct high, middle rear axle, and entire transmission system mechanical efficiency is most
Height, oil consumption are minimum.When vehicle needs heavy duty climbing, gearbox is transformed into low-grade region, rear axle is switched to increase speed ratio
Gear, at this moment rear axle speed ratio is bigger than jackshaft, and differential is started to work between bridge, due to the reaction force of tire and the frictional force on ground,
So that rear axle is integrated speed ratio between middle axle ratio and rear axle speed ratio, increase the synthesis speed ratio of middle rear axle entirety, vehicle passes
The speed ratio of dynamic system increases, and improves climbing capacity.
It is the vehicle travelled in middling speed heavy duty ordinary road to the most of the time, using the jackshaft of large speed ratio, rear axle master subtracts
Speed ratio also uses large speed ratio, in rear axle input terminal using the gear pair for reducing speed ratio.When vehicle on common road when driving, protect
Engine is held in economic speed section, gearbox all uses large speed ratio to run in low-grade location section, middle rear axle, entire transmission system
Speed ratio is maximum, and climbing capacity is most strong, and oil consumption is minimum.When needing vehicle in highway driving, gearbox is transformed into high gear
Region, rear axle, which is switched to, reduces speed ratio gear, and at this moment rear axle speed ratio is smaller than jackshaft, and differential is started to work between bridge, due to tire
With the reaction force of the frictional force on ground, middle rear axle is set to integrate speed ratio between middle axle ratio and rear axle speed ratio, in reducing
The synthesis speed ratio of rear axle entirety reduces the speed ratio of vehicle transmission system in engine economical rotating speed section, improves vehicle speed
Degree.
Other features and advantages of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood by implementing the utility model.
Description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
Novel embodiment for explaining the utility model, does not constitute limitations of the present invention together.In the accompanying drawings：
Fig. 1 shows the structural schematic diagram of rear axle combination driving device in the prior art；
Fig. 2 shows the structural schematic diagrams of the first embodiment of rear axle combination driving device in the utility model；
Fig. 3 shows the structural schematic diagram of the second embodiment of rear axle combination driving device in the utility model；
Reference sign：
| 1, inter-axle differential | 2, shaft space difference speed is locked |
| 3, jackshaft driving gear | 4, jackshaft driven gear |
| 5, jackshaft inter-wheel differential | 6, speed change sliding sleeve |
| 7, the speed ratios driving gear such as | 8, input gear |
| 9, the speed ratios driven gear such as | 10, gear ratio driving gear |
| 11, gear ratio driven gear | 12, differential sliding clutch |
| 13, differential side gear | 14, rear axle inter-wheel differential |
| 1 ', inter-axle differential | 2 ', shaft space difference speed is locked |
| 3 ', jackshaft driving gear | 4 ', jackshaft driven gear |
| 5 ', intermediate inter-wheel differential | 6 ', rear axle driving gear |
| 7 ', rear axle driven gear | 8 ', rear axle differential |
| 1 ", inter-axle differential | 2 ", shaft space difference speed is locked |
| 3 ", jackshaft driving gear | 4 ", jackshaft driven gear |
| 5 ", differential lock between jackshaft wheel | 6 ", speed change sliding sleeve |
| 7 ", the speed ratios driving gear such as | 8 ", the speed ratios driven gear such as |
| 9 ", gear ratio driven gear | 10 ", gear ratio driving gear |
| 11 ", differential sliding clutch | 12 ", differential side gear |
| 13 ", rear axle inter-wheel differential |
Specific implementation mode
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
As shown in Figure 1, the common middle rear axle combination of the prior art, including inter-axle differential 1 ', shaft space difference speed lock 2 ',
Jackshaft driving gear 3 ', jackshaft driven gear 4 ', jackshaft inter-wheel differential 5 ', rear axle driving gear 6 ', rear axle driven gear 7 '
With rear axle differential 8 '.Engine power is transmitted to inter-axle differential 1 ' by gearbox, transmission shaft, then by inter-axle differential 1 '
It is assigned to jackshaft driving gear 3 ' and rear axle driving gear 6 ', jackshaft driven gear 4 ' and rear axle driven gear 7 ' rotate, power
It is transmitted to wheel by jackshaft driven gear 4 ' and rear axle driven gear 7 ', rear axle differential 8 ', rear axle shaft, realizes vehicle row
It sails.Middle rear axle is same fixed speed ratio.
Middle rear axle combination driving device provided by the utility model comprising fixed speed ratio jackshaft and variable gear ratio rear axle,
Fixed speed ratio jackshaft includes inter-axle differential, jackshaft gear set, jackshaft differential and jackshaft semiaxis, power through inter-axle differential,
Jackshaft gear set, jackshaft differential and the jackshaft semiaxis are transmitted to jackshaft wheel；Variable gear ratio rear axle include speed change sliding sleeve, etc.
Speed ratio gear group, gear ratio gear set, differential gear set, rear axle differential, rear axle shaft, speed change sliding sleeve and equal speed ratio gears
Group or the engagement of gear ratio gear set, keep middle rear axle speed ratio identical or different.
Specifically, as shown in Fig. 2, it is the first embodiment of the utility model, including fixed speed ratio jackshaft and can
Gear ratio rear axle, fixed speed ratio jackshaft include inter-axle differential 1, shaft space difference speed lock 2, jackshaft driving gear 3, jackshaft driven gear
4, jackshaft inter-wheel differential 5, variable gear ratio rear axle include speed change sliding sleeve 6, etc. speed ratios driving gear 7, input gear 8, etc. speed ratios
Driven gear 9, gear ratio driving gear 10, gear ratio driven gear 11, differential sliding clutch 12, differential side gear 13
And rear axle inter-wheel differential 14.More specifically, operation rear axle shifting cylinder, speed change sliding sleeve 6 in the presence of cylinder with etc. speed ratios
Driving gear 7 engages.Engine power is transmitted to inter-axle differential 1, then is distributed by inter-axle differential by gearbox, transmission shaft
To jackshaft driving gear 3 and rear axle input gear 8, jackshaft driven gear 4 rotates, and power passes through jackshaft driven gear 4 and jackshaft
Inter-wheel differential, semiaxis are transmitted to jackshaft wheel.The speed ratios such as rear axle power passes through rear axle input gear 8, speed change sliding sleeve 6 is transmitted to
Driving gear 7, further through etc. speed ratios driven gear 9 be transmitted to differential sliding clutch 12, differential side gear 13 rotates, and moves
Power is transmitted to rear axle wheel by differential side gear 13 and rear axle differential, semiaxis, realizes vehicle traveling.Middle rear axle is same
One fixed speed ratio, vehicle are run in small speed ratio section, and vehicle mechanical efficiency is promoted, and oil consumption reduces.
Rear axle shifting cylinder is operated, speed change sliding sleeve 6 is engaged with gear ratio driving gear 10 in the presence of cylinder.Engine
Power is transmitted to inter-axle differential 1 by gearbox, transmission shaft, then is assigned to jackshaft driving gear 3 with after by inter-axle differential 1
Bridge input gear 8, jackshaft driven gear 4 rotate, and power is transmitted by jackshaft driven gear 4 and jackshaft inter-wheel differential, semiaxis
To jackshaft wheel.Rear axle power is transmitted to gear ratio driving gear 10 by rear axle input gear 8, speed change sliding sleeve 6, further through change
Speed ratio driven gear 11 is transmitted to differential sliding clutch 12, and differential side gear 13 rotates, and power is passive by differential mechanism
Gear 13 and rear axle inter-wheel differential 14, rear axle shaft are transmitted to rear axle wheel, realize vehicle traveling.The speed ratio of middle rear axle exists
Difference, practical speed ratio increase the synthesis speed ratio of middle rear axle, realize between jackshaft fixed speed ratio and rear axle fixed speed ratio
Transmit the ability of more large torque.
Further, as shown in figure 3, it is the second embodiment of the utility model, including fixed speed ratio jackshaft and
Variable gear ratio rear axle, fixed speed ratio jackshaft include inter-axle differential 1 ", shaft space difference speed lock 2 ", jackshaft driving gear 3 ", jackshaft quilt
Moving gear 4 ", jackshaft inter-wheel differential 5 ", variable gear ratio rear axle include speed change sliding sleeve 6 ", etc. speed ratios driving gear 7 ", etc. speed ratios
Driven gear 8 ", gear ratio driving gear 9 ", gear ratio driven gear 10 ", differential sliding clutch 11 ", Differential passive teeth
Wheel 12 " and rear axle inter-wheel differential 13 ".More specifically, operation rear axle shifting cylinder, speed change sliding sleeve 6 " in the presence of cylinder with
Etc. speed ratios driving gear 7 " engage.Engine power is transmitted to inter-axle differential 1 " by gearbox, transmission shaft, then poor by between centers
Fast device 1 " be assigned to jackshaft driving gear 3 " and etc. speed ratios driving gear 7 ", jackshaft driven gear 4 " rotate, power pass through jackshaft
Driven gear 4 " and jackshaft inter-wheel differential 5 ", rear axle shaft are transmitted to jackshaft wheel.The speed ratios driving tooths such as rear axle power process
Wheel 7 ", speed change sliding sleeve 6 " are directly delivered to differential sliding clutch 11 ", and differential side gear 12 " rotates, and power passes through differential
Device driven gear 12 " and rear axle inter-wheel differential 13 ", rear axle shaft are transmitted to rear axle wheel, realize vehicle traveling.Middle rear axle is
Same fixed speed ratio, vehicle are run in small speed ratio section, and vehicle mechanical efficiency is promoted, and oil consumption reduces.
Rear axle shifting cylinder is operated, speed change sliding sleeve 6 " is engaged with gear ratio driven gear 9 " in the presence of cylinder.Start
Mechanomotive force is transmitted to inter-axle differential 1 ", then is assigned to jackshaft driving gear by inter-axle differential 1 " by gearbox, transmission shaft
3 " rotate with rear axle input gear 8 ", jackshaft driven gear 4 ", and power is by jackshaft driven gear 4 " and jackshaft inter-wheel differential
5 ", rear axle semiaxis is transmitted to jackshaft wheel.Rear axle power by etc. speed ratios driving gear 7 ", etc. speed ratios driven gear 8 ", speed change
It is transmitted to differential sliding clutch 11 " again than driven gear 9 ", speed change sliding sleeve 6 ", differential side gear 12 " rotates, power warp
It crosses differential side gear 12 " and rear axle inter-wheel differential 13 ", rear axle shaft is transmitted to rear axle wheel, realize vehicle traveling.In
The speed ratio of rear axle has differences, and practical speed ratio increases middle rear axle between jackshaft fixed speed ratio and rear axle fixed speed ratio
Comprehensive speed ratio, realizes the ability for transmitting more large torque.
Finally it should be noted that：The above descriptions are merely preferred embodiments of the present invention, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it still can be with technical scheme described in the above embodiments is modified, or to which part technical characteristic
Carry out equivalent replacement.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of middle rear axle combination driving device, which is characterized in that including：
Fixed speed ratio jackshaft, the fixed speed ratio jackshaft include inter-axle differential, jackshaft gear set, jackshaft differential and jackshaft half
Axis, power are transmitted to jackshaft through the inter-axle differential, the jackshaft gear set, the jackshaft differential and the jackshaft semiaxis
Wheel；
Variable gear ratio rear axle, the variable gear ratio rear axle include speed change sliding sleeve, etc. speed ratios gear set, gear ratio gear set, differential
Device gear set, rear axle differential, rear axle shaft, the speed change sliding sleeve are nibbled with the speed ratios gear set such as described or gear ratio gear set
It closes, keeps middle rear axle speed ratio identical or different.
2. rear axle combination driving device in as described in claim 1, which is characterized in that after the variable gear ratio rear axle further includes
Bridge input gear.
3. rear axle combination driving device in as claimed in claim 1 or 2, which is characterized in that during the jackshaft gear set includes
Bridge driving gear and jackshaft driven gear.
4. rear axle combination driving device in as claimed in claim 1 or 2, which is characterized in that the speed ratios gear set packet such as described
It the speed ratios driving gear such as includes and waits speed ratios driven gear, the gear ratio gear set includes gear ratio driving gear and gear ratio quilt
Moving gear, the differential gear set include differential sliding clutch and differential side gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721767087.0U CN207630967U (en) | 2017-12-18 | 2017-12-18 | A kind of middle rear axle combination driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721767087.0U CN207630967U (en) | 2017-12-18 | 2017-12-18 | A kind of middle rear axle combination driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207630967U true CN207630967U (en) | 2018-07-20 |
Family
ID=62863376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721767087.0U Active CN207630967U (en) | 2017-12-18 | 2017-12-18 | A kind of middle rear axle combination driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207630967U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878189A (en) * | 2017-12-18 | 2018-04-06 | 赵彬 | A kind of middle back axle combination driving device |
| CN112659918A (en) * | 2020-12-31 | 2021-04-16 | 东风德纳车桥有限公司 | Electrically driven double axle, double axle differential control method and device thereof and automobile |
-
2017
- 2017-12-18 CN CN201721767087.0U patent/CN207630967U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878189A (en) * | 2017-12-18 | 2018-04-06 | 赵彬 | A kind of middle back axle combination driving device |
| CN112659918A (en) * | 2020-12-31 | 2021-04-16 | 东风德纳车桥有限公司 | Electrically driven double axle, double axle differential control method and device thereof and automobile |
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| GR01 | Patent grant |