CN102310767B - Axle assembly and automobile comprising same - Google Patents

Axle assembly and automobile comprising same Download PDF

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Publication number
CN102310767B
CN102310767B CN 201010228861 CN201010228861A CN102310767B CN 102310767 B CN102310767 B CN 102310767B CN 201010228861 CN201010228861 CN 201010228861 CN 201010228861 A CN201010228861 A CN 201010228861A CN 102310767 B CN102310767 B CN 102310767B
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China
Prior art keywords
axle assembly
shift fork
spline housing
clutch
reduction gear
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CN 201010228861
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Chinese (zh)
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CN102310767A (en
Inventor
于亚杰
张磊
王鹏
郭凤刚
任燕莎
刘明
王万顺
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Beiqi Foton Motor Co Ltd
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Beiqi Foton Motor Co Ltd
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Priority to CN 201010228861 priority Critical patent/CN102310767B/en
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Abstract

The invention discloses an axle assembly, which comprises a main reducing gear and an output axle shaft (5), wherein one end of a main reducing gear axle shaft (1) of the main reducing gear is provided with a clutch spline housing (2); one end of the output axle shaft (5) is provided with an output axle shaft spline housing (4); the clutch spline housing (2) is provided with a shifting fork (3); and the shifting fork (3) drives the clutch spline housing (2) to move along the axial direction of the main reducing gear axle shaft (1), so that the clutch spline housing is connected with or separated from the output axle shaft spline housing (4). In addition, the invention provides an automobile comprising the axle assembly. When a vehicle is converted from a full-wheel driving state to a non-full-wheel driving state, the main reducing gear of the axle assembly can be completely separated from the output axle shaft, so that a condition that non-driving wheels unnecessarily drive the main reducing gear to rotate so as to increase fuel consumption is avoided, and the aim of reducing oil consumption is fulfilled. In addition, the axle assembly is easy to operate, safe and reliable.

Description

Axle assembly and the automobile that comprises this axle assembly
Technical field
The present invention relates to a kind of axle assembly.In addition, the invention still further relates to a kind of automobile that comprises described axle assembly.
Background technology
The dynamic property of automobile is to estimate the important indicator of automotive performance quality.Under some driving cycles, automobile need guarantee high dynamic property to satisfy the needs that travel, and for example, when automobile was climbed, automobile need have enough dynamic property to satisfy the climbing needs.
In order to improve the dynamic property of automobile, automobile adopts full wheel-drive mode commonplace.The advantage of all-wheel-drive models automobile is to improve the dynamic property of automobile, but its fuel consumption rate too high also be apparent in view shortcoming.For this reason, the all-wheel-drive models automobile of prior art typically can be changed between full wheel-drive mode and non-full wheel-drive mode.For example, with regard to the four-wheel driving type automobile, need under the hyperdynamic situation at some, it can be operated under full wheel drive (the being four wheel drive) mode, and need not under the hyperdynamic road conditions at other, it can be converted to two-wheel drive (being typically back-wheel drive) mode.
In the prior art, the all-wheel-drive models automobile generally adopts power-transfer clutch or part-time case etc. to realize the conversion of full wheel-drive mode and non-full wheel-drive mode.The shortcoming of this structure is, for example, with regard to above-mentioned four-wheel driving type automobile, when being converted to the back-wheel drive mode by the four wheel drive mode, can't disconnect between propons main reduction gear part and the wheel output semiaxis, after vehicle was converted to the two-wheel drive mode by the four wheel drive mode, the gear of propons main reduction gear still can rotate along with the rotation of front-wheel, can not separate up hill and dale like this.Thereby, because propons main reduction gear part can't disconnect with wheel output semiaxis, front-wheel can unnecessarily drive the front-wheel main reduction gear and rotate when rotating, the rotation of this main reduction gear can consume the driving energy of automobile inevitably, thereby can increase the fuel consumption rate of automobile.Show that according to detecting data in this case, to rotate the fuel consumption rate that increases be 3%~5% because front-wheel unnecessarily drives main reduction gear, the huge waste of this fuel oil consumption has constituted the distinct disadvantage that has the all-wheel-drive models automobile now.
Therefore, need a kind of novel axle assembly, with the shortcoming of the automobile that can overcome prior art waste fuel oil when full wheel-drive mode is converted to non-full wheel-drive mode.
Summary of the invention
Technical matters to be solved by this invention provides a kind of axle assembly, this axle assembly can make the main reduction gear of described axle assembly separate fully with the output semiaxis when vehicle is converted to non-full wheel drive state by full wheel drive state, thereby reduces the fuel consumption rate of vehicle significantly.
The further technical matters to be solved of the present invention provides a kind of automobile, this automobile makes the main reduction gear of corresponding axle assembly separate fully with the output semiaxis when being converted to non-full wheel drive state by full wheel drive state, thereby reduces the fuel consumption rate of vehicle significantly.
For solving the problems of the technologies described above, the invention provides a kind of axle assembly, this axle assembly comprises the main reduction gear in the bridge bag that is arranged on described vehicle bridge and is arranged on the interior output semiaxis of this vehicle bridge bridge tube, wherein, one end of the main reduction gear semiaxis of described main reduction gear be equipped with can endwisely slip and circumferentially locking the clutch spline housing, one end of described output semiaxis is equipped with output Formation of Axle Shaft Spline cover, on the described clutch spline housing shift fork is installed, this shift fork drives described clutch spline housing along the moving axially of described main reduction gear semiaxis, optionally to make this clutch spline housing and described output Formation of Axle Shaft Spline cover engage or to separate.
In addition, the present invention also provides a kind of automobile, and this automobile comprises above-mentioned axle assembly.
By technique scheme of the present invention, because axle assembly of the present invention passes through by the clutch spline housing, output Formation of Axle Shaft Spline cover and the formed joint isolating construction of shift fork, can make the main reduction gear semiaxis of described main reduction gear optionally be connected and separate (preferably controlling by electric signal) with the output semiaxis, therefore when the all-wheel-drive models vehicle is converted to non-full wheel drive state by full wheel drive state, can be so that the main reduction gear of axle assembly disconnects fully with the output semiaxis, thereby avoided unnecessarily driving the fuel consumption rate that main reduction gear rotates to be increased because of non-driving wheel (for example front-wheel), solve the problem of all-wheel-drive models vehicle excessive oil consumption in non-full wheel drive driving process, realized reducing the purpose of fuel oil consumption.In addition, axle assembly of the present invention is simple to operate, safe and reliable when realizing the conversion of full wheel drive state and non-full wheel drive state, has stronger practicality.Relevant other features and advantages of the present invention will partly be described in detail in the specific embodiment subsequently
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present invention, and constitutes the part of specification sheets, is used from explanation the present invention with the specific embodiment of the present invention one, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the part cross-sectional schematic of the axle assembly of the specific embodiment of the invention.
Description of reference numerals:
1 main reduction gear semiaxis, 2 clutch spline housings
3 shift forks, 4 output Formation of Axle Shaft Spline covers
5 output semiaxis, 6 shift fork driven units
7 clutch controllers, 8 wire harness
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.Should be understood that the specific embodiment described herein only is used for description and interpretation the present invention, is not limited to the present invention.
Need to prove that at first the technical conceive of axle assembly of the present invention had both gone for propons, also go for back axle.For example, typically, propons at four wheeler adopts under the situation of axle assembly of the present invention, under the hyperdynamic driving cycle of needs, thereby can form full wheel drive so that front-wheel participate in to drive, thereby and can be so that front-wheel participate in driving and forms common back-wheel drive mode under general driving cycle.Certainly, axle assembly of the present invention is not limited to this, the back axle of above-mentioned four wheeler also can adopt axle assembly of the present invention, in this case, can make trailing wheel participate in driving and forming full wheel drive as required, thereby and under general driving cycle, can not form the f-w-d mode so that trailing wheel does not participate in driving.Therefore, axle assembly of the present invention both can be applied to the vehicle propons, also can be applied to vehicle rear axle, and its concrete application does not constitute limiting the scope of the invention.
Below for convenience of description, be the specific embodiment that example is described axle assembly of the present invention with front axle assy shown in Figure 1.In addition, it should be noted that the front axle assy that shows among Fig. 1 only is the part of propons in order to make drawing succinct, its do not show this front axle assy with irrelevant some details of technical conceive of the present invention, for example wheel etc.
With reference to Fig. 1, the axle assembly of basic embodiment of the present invention comprises the main reduction gear in the bridge bag that is arranged on described vehicle bridge and is arranged on the interior output semiaxis 5 of this vehicle bridge bridge tube, wherein, one end of the main reduction gear semiaxis 1 of described main reduction gear is equipped with and can endwisely slips and the circumferential clutch spline housing 2 of locking, one end of described output semiaxis 5 is equipped with output Formation of Axle Shaft Spline cover 4, on the described clutch spline housing 2 shift fork 3 is installed, the described clutch spline housing 2 of these shift fork 3 drivings moves axially along described main reduction gear semiaxis 1, optionally to make this clutch spline housing 2 and described output Formation of Axle Shaft Spline cover 4 engage or to separate.
Those skilled in the art understand easily, generally speaking, cooperation between the spline housing has the matching relationship of corresponding key tooth and keyway, like this when clutch spline housing 2 engages with described output Formation of Axle Shaft Spline cover 4, for example, key tooth (or keyway) on the inner peripheral surface of the power-transfer clutch spline housing 2 among Fig. 1 can be simultaneously with the outer peripheral face of main reduction gear semiaxis 1 and output Formation of Axle Shaft Spline cover 4 on keyway (or key tooth) form and cooperate, also there is corresponding key alligator groove meshing relation in the inner peripheral surface of output Formation of Axle Shaft Spline cover 4 with the outer peripheral face of output semiaxis 5, thus transferring power.And when clutch spline housing 2 separated with described output Formation of Axle Shaft Spline cover 4, then the connection between main reduction gear semiaxis 1 and the output semiaxis 5 can disconnect, thereby can not transferring power.
This shows, by above-mentioned basic technical scheme of the present invention, because axle assembly of the present invention passes through by clutch spline housing 2, output Formation of Axle Shaft Spline cover 4 and shift fork 3 formed joint isolating constructions, can make the main reduction gear semiaxis 1 of described main reduction gear optionally be connected or separate and (preferably control by electric signal with output semiaxis 5, see for details following), therefore when the all-wheel-drive models vehicle is converted to non-full wheel drive state by full wheel drive state, can be so that the main reduction gear of axle assembly disconnects fully with the output semiaxis, thereby avoided rotating because non-driving wheel (for example front-wheel) unnecessarily drives main reduction gear the fuel consumption rate that (mainly being each reducing gear rotation in the main reduction gear) increases, solve the problem of all-wheel-drive models vehicle excessive oil consumption in non-full wheel drive driving process, realized reducing the purpose of fuel oil consumption.
In Fig. 1, be formed with groove on the outer peripheral face of clutch spline housing 2, an end of shift fork 3 can be arranged in this groove, thereby can drive clutch spline housing 2 moving axially along described main reduction gear semiaxis 1 by mobile shift fork 3.Certainly, shift fork 3 and the embodiment that is not limited to being connected of clutch spline housing 2 among Fig. 1, it can be connected in clutch spline housing 2 by various known connection modes.
Shift fork 3 can move by various known type of drive, and for example, the most simply, it can be connected in trailer coupling to carry out M/C.Certainly, in axle assembly of the present invention, the shift fork 3 preferred electric signal type of drive that adopt uniqueness.
Referring to Fig. 1, preferably, the other end of shift fork 3 is connected in shift fork driven unit 6, and this shift fork driven unit 6 is connected in clutch controller 7 by wire harness 8, thereby under the control of clutch controller 7, moves by shift fork driven unit 6 shift forks 3.Described clutch controller 7 can be the various controllers 7 that meet the object of the invention, for example can be electronic control unit or programmable controller.
Preferably, shift fork driven unit 6 can comprise electrical motor and by this electric motor driven pinion and rack, the other end of shift fork 3 is connected in the tooth bar of pinion and rack, and when the described electrical motor of clutch controller 7 controls was switched on, shift fork 3 can move under the driving of pinion and rack.
Certainly, shift fork driven unit 6 is not limited to above-mentioned embodiment, for example, selectively, this shift fork driven unit 6 can comprise hydraulic actuating cylinder, solenoid directional control valve and hydraulic fluid source, and the other end of shift fork 3 can be connected on the cylinder bar of hydraulic actuating cylinder, like this, when clutch controller 7 control electromagnetic switch valve events, shift fork 3 can move under the driving of hydraulic actuating cylinder.
Consider the safety that car load travels; under the preferred implementation of above-mentioned employing clutch controller 7; clutch controller 7 can have safety protection function; when speed of a motor vehicle when excessive (as greater than 80km/h); the exchange meeting that 4 wheel driven and two drives state causes very big infringement to automobile; and have influence on the driving safety of automobile; in clutch controller 7, set a safe speed per hour parameter for this reason; when when car load travels, surpassing this safe speed per hour parameter; even clutch controller 7 receives the signal of car load conversion type of drive; clutch controller 7 can not send operation signal to shift fork driven unit 6 yet, thereby makes vehicle still keep present driving cycle, does not change driving condition.
Below be the mode of operation that example is described axle assembly of the present invention with the preferred implementation of the axle assembly among Fig. 1.
At first, if car load is converted to two when driving (being two-wheel drive) operating mode by 4 wheel driven (being four wheel drive), clutch controller 7 receives operation signal, and it sends execution command to shift fork driven unit 6.Shift fork driven unit 6 drives shift forks 3 and moves axially, clutch spline housing 2 move axially until all with 1 combination of main reduction gear semiaxis, export Formation of Axle Shaft Spline cover 4 this moment and separate fully with clutch spline housing 2, thus output semiaxis 5 and the 1 realization disconnection of main reduction gear semiaxis.Clutch controller 7 feeds back to the car load instrument with execution result.Thereby car load is when travelling in two modes of driving, because the transmission of propons power disconnects, has realized saving the purpose of fuel oil.
Secondly, if car load drives when being converted to the 4 wheel driven operating mode by two, clutch controller 7 receives operation signal, will execute instruction to shift fork driven unit 6.Shift fork driven unit 6 drives shift fork 3 and moves axially, clutch spline housing 2 moves axially until engaging simultaneously with main reduction gear semiaxis 1 and output Formation of Axle Shaft Spline cover 4, export semiaxis 5 this moment and realize combination with main reduction gear semiaxis 1, thereby transferring power makes that front-wheel participates in driving.Clutch controller 7 feeds back to the car load instrument with execution result.When car load travelled at 4 wheel driven, the normal stable power that provides of propons was exported.
In addition, consider disconnection that clutch spline housing 2 and output Formation of Axle Shaft Spline cover 4 realize transmissions with in conjunction with the time, unreachable position situation may take place once, i.e. not engagement or the abnormal condition that disconnect fully between the spline housing.As this situation takes place, preferably, clutch controller 7 can be automatically again shift fork driven unit 6 carry out execution work, to guarantee normally carrying out of operation.Still exist as abnormal condition after twice execution, clutch controller 7 feeds back to the car load instrument with breakdown signal.
Therefore, by technique scheme of the present invention, because axle assembly of the present invention passes through by clutch spline housing 2, output Formation of Axle Shaft Spline cover 4 and shift fork 3 formed joint isolating constructions, can make the main reduction gear semiaxis 1 of described main reduction gear optionally engage with output semiaxis 5 or separate (preferably controlling by electric signal), therefore when the all-wheel-drive models vehicle is converted to non-full wheel drive state by full wheel drive state, can be so that the main reduction gear of axle assembly disconnects fully with output semiaxis 5, thereby avoided unnecessarily driving the fuel consumption rate that main reduction gear rotates to be increased because of non-driving wheel (for example front-wheel), solve the problem of all-wheel-drive models vehicle excessive oil consumption in non-full wheel drive driving process, realized reducing the purpose of fuel oil consumption.In addition, axle assembly of the present invention is simple to operate, safe and reliable when realizing the conversion of full wheel drive state and non-full wheel drive state, has stronger practicality.
Correspondingly, the present invention also provides a kind of automobile, and this automobile comprises above-mentioned axle assembly, and apparently, this automobile has the above-mentioned advantage of axle assembly of the present invention equally.
Need to prove that each the concrete technical characterictic described in the above-mentioned specific embodiment can carry out combination in any by any suitable manner, it falls within the scope disclosed in this invention equally.In addition, also can carry out combination in any between the various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Below describe preferred implementation of the present invention by reference to the accompanying drawings in detail; but; the present invention is not limited to the detail in the above-mentioned embodiment; in technical conceive scope of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.Protection scope of the present invention is defined by the claims.

Claims (10)

1. axle assembly, this axle assembly comprises the main reduction gear in the bridge bag that is arranged on described vehicle bridge and is arranged on the interior output semiaxis (5) of this vehicle bridge bridge tube, it is characterized in that, one end of the main reduction gear semiaxis (1) of described main reduction gear is equipped with and can endwisely slips and the circumferential clutch spline housing (2) of locking, one end of described output semiaxis (5) is equipped with output Formation of Axle Shaft Spline cover (4), shift fork (3) is installed on the described clutch spline housing (2), this shift fork (3) described clutch spline housing of driving (2) moves axially along described main reduction gear semiaxis (1), optionally to make this clutch spline housing (2) engage with described output Formation of Axle Shaft Spline cover (4) or to separate.
2. axle assembly according to claim 1, wherein, described shift fork (3) moves by the driving of shift fork driven unit (6), and described shift fork driven unit (6) is controlled by clutch controller (7).
3. axle assembly according to claim 2, wherein, described shift fork driven unit (6) comprises electrical motor and by this electric motor driven pinion and rack, described shift fork (3) is connected on the tooth bar of described pinion and rack, and described clutch controller (7) is controlled described state of motor.
4. axle assembly according to claim 2, wherein, described shift fork driven unit (6) comprises hydraulic actuating cylinder, solenoid directional control valve and hydraulic fluid source, and described shift fork (3) is connected on the cylinder bar of described hydraulic actuating cylinder, the mode of operation of the described solenoid directional control valve of described clutch controller (7) control.
5. axle assembly according to claim 2, wherein, the outer peripheral face of described clutch spline housing (2) is provided with groove, and an end of described shift fork (3) is installed in this groove, and the other end is connected in described shift fork driven unit (6).
6. axle assembly according to claim 2; wherein; described clutch controller (7) is provided with safe speed per hour parameter so that safety protection function to be provided, and when the speed of a motor vehicle surpassed described safe speed per hour parameter, described clutch controller (7) did not send operation signal to described shift fork driven unit (6).
7. axle assembly according to claim 2, wherein, described clutch controller (7) is electronic control unit or programmable controller.
8. axle assembly according to claim 1, wherein, one end of described main reduction gear semiaxis (1) is equipped with described clutch spline housing (2) slidably by key alligator groove fit system, and an end of described output semiaxis (5) and described output Formation of Axle Shaft Spline cover (4) also form a fixed connection by key alligator groove fit system.
9. each described axle assembly in requiring according to aforesaid right, wherein, described axle assembly is front axle assy or back axle assembly.
10. automobile, wherein, this automobile comprises each described axle assembly in the claim 1 to 9.
CN 201010228861 2010-07-09 2010-07-09 Axle assembly and automobile comprising same Active CN102310767B (en)

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Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
KR101926197B1 (en) * 2012-07-23 2018-12-06 현대위아 주식회사 Disconnector for hybrid vehicle
US9764638B1 (en) * 2016-03-02 2017-09-19 GM Global Technology Operations LLC Power transfer unit having an axle locking system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR711323A (en) * 1931-02-14 1931-09-07 Motor vehicle upgrades
DE4143102A1 (en) * 1990-12-28 1992-07-02 Mazda Motor POWER TRANSMISSION PART FOR A MOTOR VEHICLE
US8337346B2 (en) * 2008-11-11 2012-12-25 Kanzaki Kokyukoki Mfg. Co., Ltd. Power unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100397570B1 (en) * 2000-08-09 2003-09-13 하태환 Power transmission device for automobile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR711323A (en) * 1931-02-14 1931-09-07 Motor vehicle upgrades
DE4143102A1 (en) * 1990-12-28 1992-07-02 Mazda Motor POWER TRANSMISSION PART FOR A MOTOR VEHICLE
US8337346B2 (en) * 2008-11-11 2012-12-25 Kanzaki Kokyukoki Mfg. Co., Ltd. Power unit

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