CN103273841B - Back axle lowering energy-saving transmission device - Google Patents
Back axle lowering energy-saving transmission device Download PDFInfo
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- CN103273841B CN103273841B CN201310153654.3A CN201310153654A CN103273841B CN 103273841 B CN103273841 B CN 103273841B CN 201310153654 A CN201310153654 A CN 201310153654A CN 103273841 B CN103273841 B CN 103273841B
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Abstract
The invention belongs to automobile axle driving system, be specifically related to a kind of transmission assembly for rear axle and comprise above-mentioned transmission assembly for rear axle one slow down, differential integrated rear axle assembly.In transmission assembly for rear axle of the present invention, driven gear is in being horizontally disposed with, transmission assembly for rear axle can not be caused to produce wearing and tearing near ground while increase driven gear size, along with the increase of driven gear size, the increasing torsion effect of described transmission assembly for rear axle is strengthened, and reduces driving engine required torque; Because driven gear diameter increases, the arm of force that driving gear drives it to rotate increases, and the torsion that driving gear drives it to rotate reduces, and the moment of torsion effectively reducing driving engine exports, and reduces automobile fuel consumption.
Description
Technical field
The invention belongs to automobile axle driving system, be specifically related to a kind of transmission assembly for rear axle and comprise above-mentioned transmission assembly for rear axle one slow down, differential integrated rear axle assembly.
Background technology
In the design, manufacture of automobile, automobile drive axle is an important component part of chassis system.For the automobile of F/F, back-wheel drive, driving engine institute work is passed to diff by rear driving axle (back axle) after main reduction gear deceleration increasing is turned round, and is redistributed to left and right semiaxis, finally reaches drive axle, make running car.That is back axle is while bearing tare, also assume responsibility for change transmission of power direction, reduce rotating speed, increase moment of torsion, the effect such as differential between wheel.
In prior art, rear-end gear reduction driven gear is vertical setting, diameter is less, increase torsion effect limited, need driving engine to provide larger moment of torsion to drive running car, meanwhile, the arm of force that retarder driving gear drives it to rotate is less, retarder driving gear is needed to have larger torsion, therefore, when rotating speed is identical, driving engine institute work is more, causes automobile fuel consumption to increase.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of transmission assembly for rear axle, makes back axle increase torsion effect and strengthens, reduce driving engine required torque, to reduce automobile fuel consumption.
For this reason, the present invention by the following technical solutions, a kind of transmission assembly for rear axle is provided, it is characterized in that, described device comprises: the driving gear that housing, a level are located at the power input shaft of housing hollow, a fixed cover is located at power input shaft, a level are located at housing hollow and are located at the first gear of power take-off shaft with the driven gear of described driving gear external toothing, a vertical power take-off shaft through housing hollow, a fixed cover, are fixed on the Connection Block of housing hollow; And
Be individually fixed in the second gear and the 3rd gear of described Connection Block;
Wherein, described housing is provided with the first through hole and the second through hole; Described power input shaft inserts described first through hole; Housing hollow upper surface is located in described power take-off shaft one end, and the other end inserts described second through hole and stretches out outside; Described second gear and described driven gear internal messing; Described 3rd gear respectively with the first gear and the second gear external toothing; Described driven gear and described first gear all rotate around described power take-off shaft.
Preferably, adapter sleeve is provided with between described driven gear and described first gear.
Preferably, described adapter sleeve is connected with described driven gear by clutch shaft bearing, and described adapter sleeve is connected with described first gear by the second bearing, is provided with the 3rd bearing between described first gear and described Connection Block.
Preferably, described transmission assembly for rear axle also comprises the idler wheel mechanism for reducing driven gear spin friction, described idler wheel mechanism and described driven gear upper surface Structure deformation.
Preferably, described idler wheel mechanism comprises roller shaft, cylindricality hub and the 4th bearing, and described cylindricality hub is located at described roller shaft by the 4th bearing carrier ring.
Preferably, in described driven gear, the number of teeth of teeth portion is greater than the number of teeth of described driven gear outer toothed portion.
Preferably, the diameter of described driven gear is 500-900mm.
The present invention provides a kind of deceleration, differential integrated rear axle assembly on the other hand, comprising:
Above-mentioned transmission assembly for rear axle, one is sheathed on the deceleration driving gear of described transmission assembly for rear axle power take-off shaft, diff casing, diff and back axle;
Described deceleration driving gear and described power take-off shaft free-running fit; Described diff casing is installed on the housing lower surface of described transmission assembly for rear axle;
Described diff is located in described diff casing, the reduction driven gear of described diff engages with described deceleration driving gear, described diff also comprises first planet gear, second planetary wheel, first axle side gear and the second axle side gear, described first planet gear and described second planetary wheel are individually fixed on the former of described reduction driven gear, first axle side gear and the second axle side gear respectively with first planet gear, second planetary wheel engagement composition box of tricks, splined hole is provided with in the gear of described first axle side gear and described second axle side gear,
Described back axle comprises rear axle stand, first semiaxis, second semiaxis, first adapter plate and the second adapter plate, spline is provided with inside described first semiaxis and described second semiaxis, the spline of described first semiaxis and described second semiaxis respectively with the first axle side gear, the splined hole arranged in the gear of the second axle side gear matches and is located at described diff both sides, described first adapter plate is located at outside the first semiaxis, described second adapter plate is located at outside the second semiaxis, described rear axle stand both sides are respectively equipped with the first bridge cylinder and the second bridge cylinder, first semiaxis is installed in the first bridge cylinder, second semiaxis is installed in the second bridge cylinder, described diff casing is fixedly installed on described rear axle stand.
Preferably, described first planet gear, the second planetary wheel, the first axle side gear and the second axle side gear are crowngear.
Preferably, the diameter of described driven gear is greater than the diameter of described reduction driven gear.
Beneficial effect of the present invention comprises: in transmission assembly for rear axle of the present invention, driven gear is in being horizontally disposed with, transmission assembly for rear axle can not be caused to produce wearing and tearing near ground while increase driven gear size, along with the increase of driven gear size, the increasing torsion effect of described transmission assembly for rear axle is strengthened, and reduces driving engine required torque; Because driven gear diameter increases, the arm of force that driving gear drives it to rotate increases, and the torsion that driving gear drives it to rotate reduces, and the moment of torsion effectively reducing driving engine exports, and reduces automobile fuel consumption.
Accompanying drawing explanation
Fig. 1 is the cutaway view of the transmission assembly for rear axle of the embodiment of the present invention 1;
Fig. 2 is the annexation schematic diagram of driven gear in the transmission assembly for rear axle of the embodiment of the present invention 1, the first gear, the second gear and the 3rd gear;
Fig. 3 is the deceleration of the embodiment of the present invention 2, the schematic diagram of differential integrated rear axle assembly;
Fig. 4 is the deceleration of the embodiment of the present invention 2, the cutaway view of differential integrated rear axle assembly.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiments provide a kind of transmission assembly for rear axle, comprising:
Housing;
One level is located at the power input shaft of housing hollow;
One fixed cover is located at the driving gear of power input shaft;
One level be located at housing hollow and with the driven gear of described driving gear external toothing;
One vertically through the power take-off shaft of housing hollow;
One fixed cover is located at the first gear of power take-off shaft;
Be fixed on the Connection Block of housing hollow; And
Be individually fixed in the second gear and the 3rd gear of described Connection Block;
Described housing is provided with the first through hole and the second through hole; Described power input shaft inserts described first through hole; Housing hollow upper surface is located in described power take-off shaft one end, and the other end inserts described second through hole and stretches out outside; Described second gear and described driven gear internal messing; Described 3rd gear respectively with the first gear and the second gear external toothing; Described driven gear and described first gear all rotate around described power take-off shaft.
Particularly, above-mentioned driven gear, in being horizontally disposed with, can not cause transmission assembly for rear axle to produce wearing and tearing near ground, along with the increase of driven gear size while increase driven gear size, the increasing torsion effect of described transmission assembly for rear axle is strengthened, and reduces driving engine required torque.Meanwhile, the problem that transmission of power direction changes and rotating speed reduces that causes with size increase because driven gear is horizontally disposed with of the power-transmission system effective compensation of above-mentioned first gear, the second gear and the 3rd gear composition.
Transmission assembly for rear axle provided by the invention can directly be connected with box of tricks, drives running car.
The embodiment of the present invention additionally provides a kind of deceleration, differential integrated rear axle assembly, comprising:
Above-mentioned transmission assembly for rear axle, one is sheathed on the deceleration driving gear of described transmission assembly for rear axle power take-off shaft, diff casing, diff and back axle;
Described deceleration driving gear and described power take-off shaft free-running fit; Described diff casing is installed on the housing lower surface of described transmission assembly for rear axle;
Described diff is located in described diff casing, the reduction driven gear of described diff engages with described deceleration driving gear, described diff also comprises first planet gear, second planetary wheel, first axle side gear and the second axle side gear, described first planet gear and described second planetary wheel are individually fixed on the former of described reduction driven gear, first axle side gear and the second axle side gear respectively with first planet gear, second planetary wheel engagement composition box of tricks, splined hole is provided with in the gear of described first axle side gear and described second axle side gear,
Described back axle comprises rear axle stand, first semiaxis, second semiaxis, first adapter plate and the second adapter plate, spline is provided with inside described first semiaxis and described second semiaxis, the spline of described first semiaxis and described second semiaxis respectively with the first axle side gear, the splined hole arranged in the gear of the second axle side gear matches and is located at described diff both sides, described first adapter plate is located at outside the first semiaxis, described second adapter plate is located at outside the second semiaxis, described rear axle stand both sides are respectively equipped with the first bridge cylinder and the second bridge cylinder, first semiaxis is installed in the first bridge cylinder, second semiaxis is installed in the second bridge cylinder, described diff casing is fixedly installed on described rear axle stand.
Driving engine institute work carries out passing to diff after increasing is turned round through transmission assembly for rear axle, is redistributed to the first semiaxis and the second semiaxis, finally reaches drive axle, make running car, effectively reduce driving engine required torque, reduce automobile fuel consumption.
embodiment 1
The embodiment of the present invention 1 provides a kind of transmission assembly for rear axle, as shown in Figure 1-2, for convenience of description, illustrate only the part relevant to the embodiment of the present invention.The all or part of structure of this transmission assembly for rear axle directly can connect box of tricks, carries out transmission of power.
Refer to Fig. 1-2, this transmission assembly for rear axle comprises: housing 11, power input shaft 12, driving gear 13, driven gear 14, power take-off shaft 15, Connection Block 16, the first gear 17, second gear 18 and the 3rd gear 19;
In the present embodiment, described housing 11 is in hollow form, described housing 11 is provided with the first through hole and the second through hole, described power input shaft 12 inserts described first through hole level and is located at housing 11 hollow bulb, described driving gear 13 fixed cover is located at described power input shaft 12, described driven gear 13 is horizontally placed on described housing 11 hollow bulb, and with the external toothing of described driving gear 13, described power take-off shaft 15 is vertical through housing 11 hollow bulb, housing 11 hollow bulb upper surface is located in one end, it is outside that the other end stretches out housing 11 by described second through hole, described first gear 17 fixed cover is located at described power take-off shaft 15, described driven gear 14 and described first gear 17 rotate around described power take-off shaft 15, described second gear 18 and described 3rd gear 19 are all fixed at described Connection Block 16 by screw element (not shown), Connection Block 16 is offering connecting bore (not shown) along the direction of power take-off shaft 15, screw element is arranged in the second gear 18 endoporus and the second gear 18 is fixed by connecting bore, fixed form and second gear 18 of the 3rd gear 19 are similar, do not repeat one by one at this, described second gear 18 and described driven gear 14 internal messing, described 3rd gear 19 respectively with the first gear 17 and the second gear 18 external toothing, first gear 17, second gear 18 and the 3rd gear 19 form power-transmission system, and the final power take-off shaft 15 that drives rotates.
Further; described transmission assembly for rear axle also comprises adapter sleeve 20, is located between described driven gear 14 and described first gear between 17, and adapter sleeve 20 compensate for the additional bending moment that part produces due to the reason such as assembly precision, working accuracy; be conducive to protecting gear, increase the service life.
Further, described adapter sleeve 20 is connected with described driven gear 14 by clutch shaft bearing 21, described adapter sleeve 20 is connected with described first gear 17 by the second bearing 22, be provided with between described first gear 17 and described Connection Block 16 and adding of the 3rd bearing 23, three bearing fixed partss the rigidity of whole transmission assembly for rear axle increased.
Further, described transmission assembly for rear axle is also provided with the idler wheel mechanism for reducing driven gear 14 spin friction, described idler wheel mechanism and described driven gear 14 upper surface Structure deformation.
Further, described idler wheel mechanism comprises roller shaft 24, cylindricality hub 25 and the 4th bearing 26, and described cylindricality hub 25 is sheathed on described roller shaft 24 by the 4th bearing 26.
Further, in described driven gear 14, the number of teeth of teeth portion is greater than the number of teeth of described driven gear 14 outer toothed portion.
Further, the diameter of described driven gear 14 is 500-900mm.
The principle of work of the present embodiment transmission assembly for rear axle is: drive unit is by power input shaft 12 input power, power input shaft 12 rotarily drives driving gear 13 and rotates, driving gear 13 is by driving driven gear 14 to rotate with driven gear 14 external toothing, and produce larger reduction ratio, driven gear 14 rotating speed reduces, moment of torsion increases, driven gear 14 drives the second gear 18 to rotate, second gear 18 drives the 3rd gear 19 to rotate, 3rd gear 19 drives the first gear 17 to rotate, and rotary power transmission gives power take-off shaft 15 the most at last.Wherein, the problem that transmission of power direction changes and rotating speed reduces that the power-transmission system effective compensation of described first gear 17, second gear 18 and the 3rd gear 19 composition causes with size increase because driven gear 14 is horizontally disposed with, 18 accelerating actions of described second gear, described 3rd gear 19 is idle pulley, freely rotate with the second gear 18, change hand of rotation and compensated part width between centers, and the rotary power after turning to is passed to the first gear 17.
embodiment 2
The embodiment of the present invention 2 provides a kind of deceleration, differential integrated rear axle assembly, as shown in Figure 3-4, for convenience of description, illustrate only the part relevant to the embodiment of the present invention.
Refer to Fig. 3-4, described deceleration, differential integrated rear axle assembly comprise: the transmission assembly for rear axle 1 in embodiment 1, deceleration driving gear 2, diff casing 3, diff and back axle;
Described deceleration driving gear 2 is sheathed on the power take-off shaft 15 of described transmission assembly for rear axle 1, with described power take-off shaft 15 free-running fit; Described diff casing 3 is installed on housing 11 lower surface of described transmission assembly for rear axle 1;
Described diff is located in described diff casing 3, the reduction driven gear 41 of described diff engages with described deceleration driving gear 2, described diff also comprises first planet gear 421, second planetary wheel 422, first axle side gear 431 and the second axle side gear 432, described first planet gear 421 and described second planetary wheel 422 are individually fixed on the former of described reduction driven gear 41, first axle side gear 431 and the second axle side gear 432 respectively with first planet gear 421, second planetary wheel 422 engages composition box of tricks, splined hole (not shown) is provided with in described first axle side gear 431 and the gear of described second axle side gear 432,
Described back axle comprises rear axle stand 51, first semiaxis 521, second semiaxis 522, first adapter plate 531 and the second adapter plate 532, spline (not shown) is provided with inside described first semiaxis 521 and described second semiaxis 522, the spline (not shown) of described first semiaxis 521 and described second semiaxis 522 respectively with the first axle side gear 431, the splined hole (not shown) arranged in the gear of the second axle side gear 432 matches and is located at described diff both sides, described first adapter plate 531 is located at outside the first semiaxis 521, described second adapter plate 532 is located at outside the second semiaxis 522, described rear axle stand 51 both sides are respectively equipped with the first bridge cylinder 541 and the second bridge cylinder 542, first semiaxis 521 is installed in the first bridge cylinder 541, second semiaxis 522 is installed in the second bridge cylinder 542, described diff casing 3 is fixedly installed on described rear axle stand 51, employing screw is fixed.
Further, packing seal is provided with between described diff casing 3 and described rear axle stand 51.
Further, described first planet gear 421, second planetary wheel 422, first axle side gear 431 and the second axle side gear 432 are crowngear.
Further, the diameter of described driven gear 14 is greater than the diameter of described reduction driven gear 41, the diameter of driven gear 14 is larger, the arm of force then driving it to rotate is larger, the less torsion of driving gear 15 just can drive driven gear 14 to rotate, therefore when rotating speed is identical, driving engine institute work is less, and automobile fuel consumption reduces.
Further, the outside of described first adapter plate 531 and the second adapter plate 532 is separately installed with wheel hub.
Deceleration, the differential integrated rear axle assembly principle of work of the present embodiment are: the power that drive unit exports passes to diff after transmission assembly for rear axle carries out increasing torsion effect, the first semiaxis 521, second semiaxis 522 is passed to through first planet gear 421, second planetary wheel 422, first axle side gear 431 and the second axle side gear 432, two-semiaxle drives two trailing wheels respectively, makes running car.When automobile turning, two trailing wheels are stressed not etc., and first planet gear 421, second planetary wheel 422 in diff carries out differential conversion, export different rotating speeds, automotive safety is turned to, and when automobile is kept straight on, without relative motion between first planet gear 421 and the second planetary wheel 422.
The above the specific embodiment of the present invention, does not form limiting the scope of the present invention.Any various other done by technical conceive of the present invention change and distortion accordingly, all should be included in the protection domain of the claims in the present invention.
Claims (10)
1. a transmission assembly for rear axle, is characterized in that, described device comprises:
Housing;
One level is located at the power input shaft of housing hollow;
One fixed cover is located at the driving gear of power input shaft;
One level be located at housing hollow and with the driven gear of described driving gear external toothing;
One vertically through the power take-off shaft of housing hollow;
One fixed cover is located at the first gear of power take-off shaft;
Be fixed on the Connection Block of housing hollow; And
Be individually fixed in the second gear and the 3rd gear of described Connection Block;
Described housing is provided with the first through hole and the second through hole; Described power input shaft inserts described first through hole; Housing hollow upper surface is located in described power take-off shaft one end, and the other end inserts described second through hole and stretches out outside; Described second gear and described driven gear internal messing; Described 3rd gear respectively with the first gear and the second gear external toothing; Described driven gear and described first gear all rotate around described power take-off shaft.
2. transmission assembly for rear axle according to claim 1, is characterized in that, is provided with adapter sleeve between described driven gear and described first gear.
3. transmission assembly for rear axle according to claim 2, it is characterized in that, described adapter sleeve is connected with described driven gear by clutch shaft bearing, and described adapter sleeve is connected with described first gear by the second bearing, is provided with the 3rd bearing between described first gear and described Connection Block.
4. transmission assembly for rear axle according to claim 1, is characterized in that, described transmission assembly for rear axle also comprises the idler wheel mechanism for reducing driven gear spin friction, described idler wheel mechanism and described driven gear upper surface Structure deformation.
5. transmission assembly for rear axle according to claim 4, is characterized in that, described idler wheel mechanism comprises roller shaft, cylindricality hub and the 4th bearing, and described cylindricality hub is located at described roller shaft by the 4th bearing carrier ring.
6. transmission assembly for rear axle according to claim 1, is characterized in that, in described driven gear, the number of teeth of teeth portion is greater than the number of teeth of described driven gear outer toothed portion.
7. transmission assembly for rear axle according to claim 1, is characterized in that, the diameter of described driven gear is 500-900mm.
8. deceleration, a differential integrated rear axle assembly, is characterized in that, comprising:
Transmission assembly for rear axle described in any one of claim 1-7, one is sheathed on the deceleration driving gear of described transmission assembly for rear axle power take-off shaft, diff casing, diff and back axle;
Described deceleration driving gear and described power take-off shaft free-running fit; Described diff casing is installed on the housing lower surface of described transmission assembly for rear axle;
Described diff is located in described diff casing, the reduction driven gear of described diff engages with described deceleration driving gear, described diff also comprises first planet gear, second planetary wheel, first axle side gear and the second axle side gear, described first planet gear and described second planetary wheel are individually fixed on the former of described reduction driven gear, first axle side gear and the second axle side gear respectively with first planet gear, second planetary wheel engagement composition box of tricks, splined hole is provided with in the gear of described first axle side gear and described second axle side gear,
Described back axle comprises rear axle stand, first semiaxis, second semiaxis, first adapter plate and the second adapter plate, spline is provided with inside described first semiaxis and described second semiaxis, the spline of described first semiaxis and described second semiaxis respectively with the first axle side gear, the splined hole arranged in the gear of the second axle side gear matches and is located at described diff both sides, described first adapter plate is located at outside the first semiaxis, described second adapter plate is located at outside the second semiaxis, described rear axle stand both sides are respectively equipped with the first bridge cylinder and the second bridge cylinder, first semiaxis is installed in the first bridge cylinder, second semiaxis is installed in the second bridge cylinder, described diff casing is fixedly installed on described rear axle stand.
9. deceleration according to claim 8, differential integrated rear axle assembly, is characterized in that, described first planet gear, the second planetary wheel, the first axle side gear and the second axle side gear are crowngear.
10. deceleration according to claim 8, differential integrated rear axle assembly, is characterized in that, the diameter of described driven gear is greater than the diameter of described reduction driven gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310153654.3A CN103273841B (en) | 2013-04-28 | 2013-04-28 | Back axle lowering energy-saving transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310153654.3A CN103273841B (en) | 2013-04-28 | 2013-04-28 | Back axle lowering energy-saving transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103273841A CN103273841A (en) | 2013-09-04 |
| CN103273841B true CN103273841B (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310153654.3A Active CN103273841B (en) | 2013-04-28 | 2013-04-28 | Back axle lowering energy-saving transmission device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570422A (en) * | 2016-03-02 | 2016-05-11 | 十堰焕金工贸有限公司 | Speed reducer and differential mechanism assembly for rear axle of electric automobile |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2667123B2 (en) * | 1995-01-27 | 1997-10-27 | 株式会社 神崎高級工機製作所 | Axle drive |
| DE102006025062A1 (en) * | 2006-05-30 | 2007-12-06 | Zf Friedrichshafen Ag | Gear unit for guiding a drive torque from a drive shaft to two drive shafts |
| CN201672004U (en) * | 2010-04-30 | 2010-12-15 | 长春思达汽车技术咨询有限公司 | One-gear speed changing device for electric bus or truck |
| CN203198735U (en) * | 2013-04-28 | 2013-09-18 | 明双奇 | Rear axle transmission device and integrated rear axle assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1000791B1 (en) * | 1998-06-05 | 2010-04-14 | Kanzaki Kokyukoki MFG. Co., Ltd. | Transmission mechanism of vehicle with hst and pressure oil feeding device for the mechanism |
-
2013
- 2013-04-28 CN CN201310153654.3A patent/CN103273841B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2667123B2 (en) * | 1995-01-27 | 1997-10-27 | 株式会社 神崎高級工機製作所 | Axle drive |
| DE102006025062A1 (en) * | 2006-05-30 | 2007-12-06 | Zf Friedrichshafen Ag | Gear unit for guiding a drive torque from a drive shaft to two drive shafts |
| CN201672004U (en) * | 2010-04-30 | 2010-12-15 | 长春思达汽车技术咨询有限公司 | One-gear speed changing device for electric bus or truck |
| CN203198735U (en) * | 2013-04-28 | 2013-09-18 | 明双奇 | Rear axle transmission device and integrated rear axle assembly |
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| CN103273841A (en) | 2013-09-04 |
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