CN107448577A - Differential drive mechanism - Google Patents
Differential drive mechanism Download PDFInfo
- Publication number
- CN107448577A CN107448577A CN201710622915.XA CN201710622915A CN107448577A CN 107448577 A CN107448577 A CN 107448577A CN 201710622915 A CN201710622915 A CN 201710622915A CN 107448577 A CN107448577 A CN 107448577A
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- China
- Prior art keywords
- axle shaft
- gear
- shaft gear
- output
- travelling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000007246 mechanism Effects 0.000 title claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 230000000694 effects Effects 0.000 description 4
- 238000005457 optimization Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/12—Differential gearings without gears having orbital motion
- F16H48/16—Differential gearings without gears having orbital motion with freewheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/24—Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention belongs to automobile differential field, a kind of more particularly to differential drive mechanism, including output axle shaft, one end of output axle shaft is arranged to hollow spline, the first axle shaft gear is from left to right set with the periphery of output axle shaft successively, travelling gear and the second axle shaft gear, moment of torsion is transmitted between wherein the first axle shaft gear and the second axle shaft gear and output axle shaft, the direction of rotation of tooth is opposite on first axle shaft gear and the second axle shaft gear, travelling gear is between the first axle shaft gear and the second axle shaft gear, do not contacted between the inner ring of travelling gear and output axle shaft, the right and left of travelling gear is respectively equipped with the tooth being mutually engaged with the first axle shaft gear and the second axle shaft gear；Output axle shaft outer wrap has transmission sleeve pipe, the inwall of transmission sleeve pipe is not contacted with the first axle shaft gear and the second axle shaft gear, and the inwall for being driven sleeve pipe is fixedly connected with travelling gear, and the outer wall for being driven sleeve pipe is provided with splined shaft and shift fork position, the present apparatus is simple for structure, and cost is relatively low.
Description
Technical field
The invention belongs to automobile differential field, more particularly to a kind of differential drive mechanism.
Background technology
Automobile differential is the main part for driving sedan-chair.Its effect is exactly while to both sides semiaxis passing power, it is allowed to
Both sides semiaxis is rotated with different rotating speeds, is met that two sidecar wheels make Unequal distance traveling in the form of pure rolling as far as possible, is reduced wheel
Tire and the friction on ground.The power of automobile engine finally proceeds to drive axle left and right again through clutch, speed changer, power transmission shaft
Semiaxis driving moment is distributed to, in this power transmission approach, drive axle is last assembly, and its critical piece is to subtract
Fast device and differential mechanism, this Yong Lai not slow down increment and differential function.The core transmission component of existing differential mechanism is planetary gear
Mechanism, the design requirement of differential mechanism meet:(left half axle rotating speed)+(right axle shaft rotating speed)=2 (planetary wheel carrier rotating speed).When automobile is straight
During row, left and right wheel is equal with the rotating speed of planetary wheel carrier three to be in poised state, and three's poised state in automobile turning
It is destroyed, cause inner side wheel speed to reduce, the increase of outside wheel speed.When side, wheel is stuck or skidded, because
The relation of above-mentioned formula, the speed of another wheel is identical with the rotating speed of planet carrier, so as to cause the earth-grasping force of wheel to be original
The half come, and then wheel is sunk deeper and deeper.In order to solve the above problems, people devise differential lock, in wheel pitfall
Some when, the semiaxis of left and right two is locked together using differential lock, rotated at a same speed, forbids depositing between two semiaxis
In differential, wheel rotor speed is reduced so as to play, improves the effect of moment of torsion.So existing differential design is complicated, cost is high.
The content of the invention
It is an object of the invention to a kind of differential drive mechanism for overcoming deficiency of the prior art and inventing.
What the present invention was realized in：A kind of differential drive mechanism, including output axle shaft, one end of output axle shaft are set
Into hollow spline, it is characterised in that：The first axle shaft gear is from left to right set with the periphery of output axle shaft successively, is passed
Moving gear and the second axle shaft gear, wherein torsion can be transmitted between the first axle shaft gear and the second axle shaft gear and output axle shaft
The direction of rotation of tooth is on the contrary, travelling gear is located at the first axle shaft gear and on square, the first axle shaft gear and the second axle shaft gear
Between two axle shaft gears, do not contacted between the inner ring and output axle shaft of travelling gear, the right and left of travelling gear is set respectively
There is the tooth being mutually engaged with the first axle shaft gear and the second axle shaft gear；Output axle shaft outer wrap has transmission sleeve pipe, is driven sleeve pipe
Inwall do not contacted with the first axle shaft gear and the second axle shaft gear, the inwall for being driven sleeve pipe is fixedly connected with travelling gear, pass
Splined shaft and shift fork position are provided with the outer wall of dynamic sleeve pipe.
Further optimization, passes through splined shaft phase between described the first axle shaft gear and the second axle shaft gear and output axle shaft
Connect, fixed on the output axle shaft on the left of the first axle shaft gear to have elastic component a, left side for the flexible member and the first axle shaft gear
End face joint, on the output axle shaft on the right side of the second axle shaft gear fixation have elastic component, the flexible member and the second half axle gear
The right side joint of wheel, the gear teeth of the first axle shaft gear, travelling gear and the second axle shaft gear are on end face, and the gear teeth have
Inclination angle, can only single-direction transmission, oppositely oriented a, left side for travelling gear for the first axle shaft gear and the second axle shaft gear end face gear
The tooth that can be mutually engaged with the first left half axle gear and the second left half axle gear is respectively arranged with right two end faces.
Another optimization form, it is fixed between described the first axle shaft gear and the second axle shaft gear and output axle shaft to connect
Connect, the first described axle shaft gear and the second axle shaft gear are ratchet mechanism, the structure and bicycle rear of the ratchet mechanism
Ratchet mechanism it is identical, the rotation direction of two ratchet mechanisms is on the contrary, the first travelling gear is located at the first left half axle gear and
Between two left half axle gears, the right and left of the first travelling gear is respectively set to hollow sleeve, is set on the inner headed face of sleeve
With teeth, the tooth of the right and left of the first travelling gear can be meshed with the tooth in ratchet mechanism respectively.
The present invention has advantages below：Transmission mechanism and shift fork, band can be further installed on the transmission sleeve pipe of mechanism
The rotation and axial movement of dynamic transmission sleeve pipe, transmission sleeve pipe are transferred power on travelling gear, and travelling gear is moved by left and right
It is dynamic, it can be meshed respectively with the first axle shaft gear or the second axle shaft gear, the axle shaft gear of travelling gear and not homonymy is nibbled
Close, can control and be driven axially distinct direction rotation, and then realize the advance and retroversion of vehicle.When vehicle normally moves forward
During, the gear teeth between travelling gear and axle shaft gear are located at the position that can be driven, and transmission sleeve pipe moves engine
Power passes to output axle shaft, and the gear teeth between travelling gear and axle shaft gear are located at the trend that can be driven, i.e., travelling gear to
Axle shaft gear transmits moment of torsion；When the vehicle is turning, the tire positioned at the larger side of radius of turn needs what is walked within the unit interval
Distance is bigger, so now the rotating speed of tire is more than the rotating speed of transmission sleeve pipe, so, the rotating speed of axle shaft gear is more than semiaxis
The rotating speed of gear, the gear teeth between travelling gear and axle shaft gear are located at the trend that can not be driven, and occur between the two relative
Displacement, and then differential occurs between two tires.
The present apparatus uses in pairs when in use, is arranged on a mechanism on the output axle shaft of side respectively, from
And the form and differential to each other of vehicle both sides tire are controlled, originally it is filled with to use and is driven etc. on vehicle in 4 wheel driven, six.
The present apparatus is simple for structure, and cost is relatively low.
Brief description of the drawings
Fig. 1 is the main view direction view that mechanism splits after transmission sleeve pipe in the present invention.
Fig. 2 is the use state figure that the mechanism in the present invention is arranged on two semiaxis.
Fig. 3 is the main view direction schematic diagram that the first axle shaft gear and the second axle shaft gear are ratchet mechanism in the present invention.
Fig. 4 is a kind of left view of structure of the first axle shaft gear in the present invention.
Fig. 5 is a kind of left view of structure of travelling gear in the present invention.
Embodiment
Embodiment 1：
As depicted in figs. 1 and 2, a kind of differential drive mechanism, including output axle shaft 1, one end of output axle shaft 1 are arranged to hollow
Spline 2, be from left to right set with the first axle shaft gear 3, travelling gear 4 and second successively on the periphery of output axle shaft 1
Axle shaft gear 5, the connected mode between described the first axle shaft gear 3 and the second axle shaft gear 5 and output axle shaft 1 are provided with flower
Key axis connection, do not contacted between the inner ring and output axle shaft 1 of travelling gear 4, it is solid on the output axle shaft in the left side of the first axle shaft gear 3
Surely have elastic component, the left side joint of the flexible member and the first axle shaft gear 3, the output on the right side of the second axle shaft gear 5
Fixation has elastic component on semiaxis, the right side joint of the flexible member and the second axle shaft gear 5, the first axle shaft gear 3, passes
The gear teeth of the axle shaft gear 5 of moving gear 4 and second are on end face, and the gear teeth have inclination angle, can only single-direction transmission, the first axle shaft gear
3 and the end face gear of the second axle shaft gear 5 it is oppositely oriented, being respectively arranged with the end face of left and right two of travelling gear 4 can be with
The tooth being engaged with the first axle shaft gear 3 and the phase of the second axle shaft gear 5；The outer wrap of output axle shaft 1 has transmission sleeve pipe 6, drive sleeve
The inwall of pipe 6 is not contacted with the first axle shaft gear 3 and the second axle shaft gear 5, and the inwall of transmission sleeve pipe 6 is fixed with travelling gear 4
Connection, it is driven on the outer wall of sleeve pipe 6 and is provided with splined shaft and shift fork position.
The effect of first axle shaft gear 3 and the flexible member in the outside of the second axle shaft gear 5 is as follows：
First, when travelling gear 4 engages with the first axle shaft gear 3 or the second axle shaft gear 5, drive forward travel when
Wait, flexible member provides enough thrust to the first axle shaft gear 3 or the second axle shaft gear 5 so that both and travelling gear energy
Enough reliable transmissions；
Second, when vehicle turning, it is the axle shaft gear 3 or the second of travelling gear 4 and first that the tire of vehicle both sides, which needs differential,
Slip relatively can occur between axle shaft gear 5 along the flank of tooth, now flexible member generation compression and both stretching, extensions, guarantee are located all the time
In the state of fitting, to ensure the stabilization of follow-up work.
In this structure, the first axle shaft gear 3 and the second axle shaft gear 5 can also be arranged on transmission sleeve pipe, travelling gear 4
On output axle shaft 1, the function of transmission and differential can be equally realized.
Embodiment 2：
As shown in Fig. 3, Fig. 4 and Fig. 5, a kind of differential drive mechanism, including output axle shaft, during one end of output axle shaft is arranged to
Empty spline, the first axle shaft gear, travelling gear and the second half are from left to right set with the periphery of output axle shaft successively
It is fixedly connected between the first axle shaft gear and the second axle shaft gear and output axle shaft described in shaft gear, the first described half axle gear
Wheel and the second axle shaft gear are ratchet mechanism, and the structure of the ratchet mechanism is identical with the ratchet mechanism of bicycle rear, two
The rotation direction of ratchet mechanism on the contrary, the first travelling gear between the first axle shaft gear and the second axle shaft gear, driving cog
The right and left of wheel is respectively set to hollow sleeve, and with teeth, the tooth of the right and left of travelling gear is set on the inner headed face of sleeve
It can be meshed respectively with the tooth in ratchet mechanism, output axle shaft outer wrap has transmission sleeve pipe, is driven the inwall and of sleeve pipe
One axle shaft gear and the second axle shaft gear are not contacted, and the inwall for being driven sleeve pipe is fixedly connected with travelling gear, are driven the outer of sleeve pipe
Splined shaft and shift fork position are provided with wall.
The drive mechanism of this shape belongs to same inventive concept with embodiment 1, can play identical transmission effect.
Claims (3)
1. a kind of differential drive mechanism, including output axle shaft, one end of output axle shaft is arranged to hollow spline, its feature
It is：The first axle shaft gear, travelling gear and the second axle shaft gear are from left to right set with the periphery of output axle shaft successively,
Moment of torsion can be transmitted between wherein the first axle shaft gear and the second axle shaft gear and output axle shaft, the first axle shaft gear and the second half
On shaft gear tooth direction of rotation on the contrary, travelling gear between the first axle shaft gear and the second axle shaft gear, travelling gear
Inner ring and output axle shaft between do not contact, the right and left of travelling gear is respectively arranged with and the first axle shaft gear and the second half
The tooth that shaft gear is mutually engaged；Output axle shaft outer wrap has transmission sleeve pipe, is driven inwall and the first axle shaft gear and of sleeve pipe
Two axle shaft gears are not contacted, and the inwall for being driven sleeve pipe is fixedly connected with travelling gear, is driven on the outer wall of sleeve pipe and is provided with spline
Axle and shift fork position.
2. differential drive mechanism according to claim 1, it is characterised in that：Described the first axle shaft gear and the second half
It is connected between shaft gear and output axle shaft by splined shaft, flexible member is fixed on the output axle shaft on the left of the first axle shaft gear
The left side joint of part, the flexible member and the first axle shaft gear, it is fixed with the output axle shaft on the right side of the second axle shaft gear
The right side joint of flexible member, the flexible member and the second axle shaft gear, the first axle shaft gear, travelling gear and the second half
The gear teeth of shaft gear are on end face, and the gear teeth have inclination angle, can only single-direction transmission, the first axle shaft gear and the second axle shaft gear end
Face gear it is oppositely oriented, being respectively arranged with the end face of left and right two of travelling gear can be with the first left half axle gear and
The tooth that two left half axle gears are mutually engaged.
3. differential drive mechanism according to claim 1, it is characterised in that：Described the first axle shaft gear and the second half
It is fixedly connected between shaft gear and output axle shaft, the first described axle shaft gear and the second axle shaft gear are ratchet mechanism, should
The structure of ratchet mechanism is identical with the ratchet mechanism of bicycle rear, and the rotation direction of two ratchet mechanisms is on the contrary, the first transmission
For gear between the first axle shaft gear and the second axle shaft gear, the right and left of travelling gear is respectively set to hollow sleeve,
Set with teeth on the inner headed face of sleeve, the tooth of the right and left of travelling gear can be meshed with the tooth in ratchet mechanism respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710622915.XA CN107448577A (en) | 2017-07-27 | 2017-07-27 | Differential drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710622915.XA CN107448577A (en) | 2017-07-27 | 2017-07-27 | Differential drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107448577A true CN107448577A (en) | 2017-12-08 |
Family
ID=60489130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710622915.XA Withdrawn CN107448577A (en) | 2017-07-27 | 2017-07-27 | Differential drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107448577A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356991A (en) * | 2018-12-12 | 2019-02-19 | 孙超 | A kind of differential gear driven more |
| CN112829581A (en) * | 2021-01-08 | 2021-05-25 | 武汉祥振科技有限公司 | Central limited slip differential device and four-wheel automobile driving system comprising same |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4488454A (en) * | 1982-03-10 | 1984-12-18 | Eaton Corporation | Balking clamp positive drive |
| FR2808575A1 (en) * | 2000-05-02 | 2001-11-09 | Peugeot Citroen Automobiles Sa | Differential for an automotive vehicle, has clutches between the engine and half-shafts supporting the wheels, these clutches independently controlled by computer |
| CN1408574A (en) * | 2001-09-17 | 2003-04-09 | 傅仲炎 | Driving differential mechanism for motor vehicle |
| AT508012A4 (en) * | 2009-04-03 | 2010-10-15 | Ackerl Franz Dr | MECHANICAL SLIP LOCK |
| KR20140090449A (en) * | 2013-01-09 | 2014-07-17 | 주식회사 도호세미텍 | Automatic locking differential |
| CN203822999U (en) * | 2012-11-19 | 2014-09-10 | 伊顿公司 | Telescopic differential mechanism, telescopic clutch differential and vehicle transmission system |
| CN106763638A (en) * | 2017-01-05 | 2017-05-31 | 常州工程职业技术学院 | A kind of limited slip differential |
| CN206929305U (en) * | 2017-07-27 | 2018-01-26 | 孙超 | Differential drive mechanism |
-
2017
- 2017-07-27 CN CN201710622915.XA patent/CN107448577A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4488454A (en) * | 1982-03-10 | 1984-12-18 | Eaton Corporation | Balking clamp positive drive |
| FR2808575A1 (en) * | 2000-05-02 | 2001-11-09 | Peugeot Citroen Automobiles Sa | Differential for an automotive vehicle, has clutches between the engine and half-shafts supporting the wheels, these clutches independently controlled by computer |
| CN1408574A (en) * | 2001-09-17 | 2003-04-09 | 傅仲炎 | Driving differential mechanism for motor vehicle |
| AT508012A4 (en) * | 2009-04-03 | 2010-10-15 | Ackerl Franz Dr | MECHANICAL SLIP LOCK |
| CN203822999U (en) * | 2012-11-19 | 2014-09-10 | 伊顿公司 | Telescopic differential mechanism, telescopic clutch differential and vehicle transmission system |
| KR20140090449A (en) * | 2013-01-09 | 2014-07-17 | 주식회사 도호세미텍 | Automatic locking differential |
| CN106763638A (en) * | 2017-01-05 | 2017-05-31 | 常州工程职业技术学院 | A kind of limited slip differential |
| CN206929305U (en) * | 2017-07-27 | 2018-01-26 | 孙超 | Differential drive mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356991A (en) * | 2018-12-12 | 2019-02-19 | 孙超 | A kind of differential gear driven more |
| CN112829581A (en) * | 2021-01-08 | 2021-05-25 | 武汉祥振科技有限公司 | Central limited slip differential device and four-wheel automobile driving system comprising same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171208 |
|
| WW01 | Invention patent application withdrawn after publication |