CN108571571A - A kind of electric-controlled mechanical differential lock - Google Patents
A kind of electric-controlled mechanical differential lock Download PDFInfo
- Publication number
- CN108571571A CN108571571A CN201810354330.9A CN201810354330A CN108571571A CN 108571571 A CN108571571 A CN 108571571A CN 201810354330 A CN201810354330 A CN 201810354330A CN 108571571 A CN108571571 A CN 108571571A
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- CN
- China
- Prior art keywords
- shell
- differential mechanism
- locking
- gear
- axis pin
- 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.)
- Pending
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Classifications
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- 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
- F16H48/30—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
- F16H48/34—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
-
- 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
- F16H48/38—Constructional details
-
- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/037—Gearboxes for accommodating differential gearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Retarders (AREA)
Abstract
The present invention relates to system of vehicle transmission apparatus field, specifically a kind of electric-controlled mechanical differential lock.Including shell and box of tricks in the housing and automatically controlled lockable mechanism are set；Automatically controlled lockable mechanism includes the axis pin that sliding is threaded through in the pin hole being opened on differential mechanism shell and the electromagnetic control apparatus for pushing axis pin to be slided along pin hole, axis pin one end is equipped with the locking pin block for coordinating with locking wheel, electromagnetic control apparatus includes armature disc, electromagnetic coil, conducting slip ring and conductive contact, armature disc is slidably arranged on differential mechanism shell and corresponding axis pin is opposite to each other in one end of locking pin block, resetting spring is equipped between armature disc and differential mechanism shell on axis pin, electromagnetic coil and conducting slip ring are each attached on differential mechanism shell, conductive contact is fixed in inner walls and is engaged power supply with conducting slip ring.The advantages of present invention, which has to be easily achieved, to be automatically controlled, and can realize the switching under parking or not parking state, and stability is good, long lifespan.
Description
Technical field
The present invention relates to system of vehicle transmission apparatus field, specifically a kind of electric-controlled mechanical differential lock.
Background technology
Differential lock be it is a kind of to differential mechanism carry out locking device, effect be when one side drive wheel of vehicle is skidded, will be poor
Fast device shell and half shaft locking of both sides are integral, so that differential mechanism is lost differential action, so that it may all torsion torque is transferred to the other side
On driving wheel, handling capacity of the automobile on bad road surface is improved, automobile is made to can continue to travel.Currently, popular differential
It locks there are three types of products：Manual mechanical differential lock（It is castellated）, high friction self-locking formula differential lock, Eton formula differential lock.
Armstrong's patent differential lock is technically simple, and production cost is low, but is still the most reliable, most effective so far
Improve the equipment of the drive system of vehicle cross-country ability.The power entirely mechanical that two semiaxis may be implemented in it combines, very firm
Gu.But quite inconvenience is manipulated, it can not realize and automatically control, it is necessary to be switched over manually under dead ship condition.
High friction self-locking formula has the structures such as friction disk type and slipper cam-type.Friction disk type passes through relatively sliding between friction plate
The moment of friction generated when turning makes differential mechanism locking, and this differential lock is simple in structure, stable working, in car and light-duty vehicle
It is upper most common；Slipper cam-type makes differential mechanism locking using moment of friction larger between sliding block and cam, it can be very
Improved in big degree automobile by performance, but both differential locks are complicated, and processing request is high, and friction member is easy to wear,
Service life is shorter, and cost is higher.
Eton differential lock is one kind of mechanical differential lock, when difference occurs in the adhesive force of both sides wheel, if both sides vehicle
The speed discrepancy of wheel has reached the numerical value of setting, then Eton differential lock will automatic locking differential mechanism so that both sides wheel possesses
Identical power, to make vehicle get rid of poverty.But it can not realize active control, it is necessary to just be acted as when speed discrepancy occurs
With reaction speed is slightly slow.
Invention content
It is automatically controlled the present invention is intended to provide one kind is easily achieved, to realize the switching under parking or not parking state, surely
It is qualitative good, the electric-controlled mechanical differential lock of long lifespan.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of electric-controlled mechanical differential lock, including
Shell and setting box of tricks in the housing and automatically controlled lockable mechanism；The box of tricks includes Driven Gear of Final Reduction Gear, sets
Set the fixing axle on Driven Gear of Final Reduction Gear, rotate coaxially two planetary gears being arranged in fixing axle and respectively with planet
Two axle shaft gears of gear engagement connection, are coaxially provided with the differential being rotatably dispose in shell on the Driven Gear of Final Reduction Gear
Device shell, the fixing axle are fixed in differential mechanism shell, and planetary gear and axle shaft gear are rotatably arranged on differential
In device shell, planetary gear includes the ontology and the locking wheel coaxially connected with ontology for engaging cooperation with axle shaft gear；
The automatically controlled lockable mechanism includes the axis pin that sliding is threaded through in the pin hole being opened on differential mechanism shell and is sold for pushing
The electromagnetic control apparatus that axis is slided along pin hole, it is corresponding with the position of locking wheel that axis pin is located at one end in differential mechanism shell
And equipped with for coordinating so that by the locking pin block of planetary gear braking, electromagnetic control apparatus includes armature disc, electromagnetism with locking wheel
Coil, conducting slip ring and conductive contact, armature disc is slidably arranged on differential mechanism shell and corresponding axis pin is opposite to each other in lock pin
One end of block is equipped with resetting spring on axis pin between armature disc and differential mechanism shell, and electromagnetic coil and conducting slip ring are equal
It is fixed on differential mechanism shell and electromagnetic coil is corresponding with the position of armature disc, conductive contact is fixed in inner walls
And it is engaged power supply with conducting slip ring.
Preferably, two fixing axles in crossing distribution are fixed in the differential mechanism shell, any one is solid
The planetary gear there are two setting is rotated on dead axle, two axle shaft gears are engaged with the ontology on four planetary gears respectively matches
It closes.
Preferably, the automatically controlled lockable mechanism includes four pins being respectively cooperating with the locking wheel on four planetary gears
Axis.
Preferably, spring retainer block, spring limit are removably connected in one end of locking pin block opposite to each other on the axis pin
The side of position block coordinates with resetting spring, and the other side is arranged in the gland on being opened in armature disc.
Preferably, it is slidably connected by spline structure between the armature disc and differential mechanism shell.
Preferably, the conductive contact is connected with a vehicle-mounted power supply by conducting wire, and conducting wire is equipped with circuit controling switch.
Advantageous effect
The present invention using automatically controlled mode to differential lock implement active control, be quick on the draw, it is more convenient, may be implemented parking or not
Switching under dead ship condition, stability is good, long lifespan.
Armature disc is rotatablely connected by spline and differential mechanism shell, when needing to carry out locking to box of tricks, rank
Iron pan under the magnetic force, can keep identical rotating speed to carry out compressed spring, keep phase between the two with differential mechanism shell
To static relationship, it is possible to prevente effectively from interfering problem caused by rotating speed is asynchronous.
Differential lock is attached by slip ring and contact with automotive control circuit, when vehicle has skidded stall, vehicle
Control system can carry out automatic locking according to current vehicle condition, solve the problems, such as that manual switching must be carried out under dead ship condition.
Compared to the scheme for directly carrying out locking to planetary gear at present, the present invention uses planetary gear and brakes indirectly
Mode carries out locking to the locking wheel on planetary gear, can effectively avoid because locking causes planetary gear to be seriously worn, and influences and half
The transmission of shaft gear coordinates so that differential mechanism is relatively reliable.
Have to start by the way of automatically controlled and be quick on the draw, when closing, can be realized rapidly again under action of reset spring point
From compact-sized, stable working.
Description of the drawings
Fig. 1 is the longitudinal profile structure schematic of the present invention；
Fig. 2 is the close-up schematic view of part A in Fig. 1；
Fig. 3 is the planetary dimensional structure diagram of the present invention；
Fig. 4 is the dimensional structure diagram of the axis pin part of the present invention；
Fig. 5 is the dimensional structure diagram of the armature disc portion of the present invention；
It is marked in figure：1, fixing axle, 2, planetary gear, 201, locking wheel, 202, ontology, 3, axle shaft gear, 4, differential mechanism shell,
5, shell, 6, armature disc, 7, axis pin, 8, electromagnetic coil, 9, conductive contact, 10, conducting slip ring, 11, Driven Gear of Final Reduction Gear, 12,
Spring retainer block, 13, resetting spring, 14, locking pin block, 15, gland.
Specific implementation mode
As shown in Figures 1 to 5, a kind of electric-controlled mechanical differential lock of the invention, including shell 5 and setting are in shell 5
In box of tricks and automatically controlled lockable mechanism.Box of tricks includes Driven Gear of Final Reduction Gear 11, is arranged on Driven Gear of Final Reduction Gear 11
Fixing axle 1, rotate coaxially two planetary gears 2 being arranged in fixing axle 1 and engage with planetary gear 2 connection respectively
Two axle shaft gears 3.Input shaft is equipped in shell 5, input shaft passes through 11 engaged transmission of bevel gear and Driven Gear of Final Reduction Gear
Connection.1 quantity of fixing axle in the present embodiment is two and is arranged in decussation, is turned in any one fixing axle 1
Dynamic to set there are two planetary gear 2, two axle shaft gears 3 engages connection with four planetary gears 2 respectively, are used for drive respectively with two
The automobile axle shaft rotation that a axle shaft gear 3 connects.
Differential mechanism shell 4 is coaxially provided in the present invention on Driven Gear of Final Reduction Gear 11, the both ends of differential mechanism shell 4 turn respectively
It is dynamic to be arranged on being opened in shell 5 and passed through for automobile axle shaft the axis hole position for being easy to the connection of axle shaft gear 3, axis hole position with
It is additionally provided with rolling bearing between differential mechanism shell 4.Two fixing axles 1 are fixed in differential mechanism shell 4, planetary gear 2
It is rotatably arranged in differential mechanism shell 4 with axle shaft gear 3.The planetary gear 2 of the present invention includes for being engaged with axle shaft gear 3
The ontology 202 of cooperation and the locking wheel 201 coaxially connected with ontology 202, automatically controlled lockable mechanism coordinate with locking wheel 201 to incite somebody to action
2 locking of entire planetary gear.
Automatically controlled lockable mechanism includes the axis pin 7 and be used for that sliding is threaded through in the pin hole being opened on differential mechanism shell 4
The electromagnetic control apparatus for pushing axis pin 7 to be slided along pin hole.Axis pin 7 is located at the position of one end and locking wheel 201 in differential mechanism shell 4
It sets corresponding and is equipped with for the locking pin block 14 with the cooperation of locking wheel 201 to brake planetary gear 2.Electromagnetic control apparatus packet
It includes the armature disc 6 for pushing axis pin 7 towards 201 direction of locking wheel and pushes the electromagnetic wire of axis pin 7 for controlling armature
Circle 8, conducting slip ring 10 and conductive contact 9.Armature disc 6 is slided by the spline structure between armature disc 6 and differential mechanism shell 4
It is arranged on differential mechanism shell 4 and corresponding axis pin 7 is opposite to each other in one end of locking pin block 14, electromagnetic coil 8 and conducting slip ring 10 is equal
It is fixed on differential mechanism shell 4 and electromagnetic coil 8 is corresponding with the position of armature disc 6, conductive contact 9 is fixed at shell 5
It is engaged power supply on inner wall and with conducting slip ring 10, conductive contact 9 is connected with a vehicle-mounted power supply by conducting wire, and conducting wire is equipped with electricity
Way control switch.
Control switch may be provided in automobile cab, when vehicle tyre skid, be opened by control convenient for driver
The logical galvanic circle between vehicle power supply and conductive contact 9 of connection, conductive contact 9 are supplied by conducting slip ring 10 to electromagnetic coil 8
Electricity, electromagnetic coil 8 generate magnetic force and attract armature disc 6 towards 201 direction of locking wheel, pushed on axis pin 7 by armature disc 6 after being powered
The cooperation of locking pin block 14 and locking wheel 201 carry out locking, and then prevent the rotation of idle running axle shaft gear 3, be finally reached to difference
The locking of fast mechanism so that left and right vehicle wheel semiaxis obtains equal driving force.
Lockable mechanism in embodiment includes four axis pins being respectively cooperating with the locking wheel 201 on four planetary gears 2
7, resetting spring 13 is equipped between armature disc 6 and differential mechanism shell 4 on axis pin 7, opposite to each other in locking pin block on axis pin 7
14 one end is removably connected with spring retainer block 12, and side and the resetting spring 13 of spring retainer block 12 coordinate, and the other side is set
It sets in the gland 15 on being opened in armature disc 6.When normal vehicle operation, locking need not be carried out to box of tricks, at this time
The control switch between vehicle power supply and conductive contact 9 is disconnected, magnetic force disappears, and axis pin 7 will be in the work of 13 thrust of resetting spring
Under so that locking pin block 14 is detached with locking wheel 201, is then subtracted to far from master by 12 open-top armature disc 6 of spring retainer block
The direction of fast device gear 11 is moved, and the locking action to differential mechanism is finally terminated.
Claims (6)
1. a kind of electric-controlled mechanical differential lock, including shell（5）And it is arranged in shell（5）In box of tricks and automatically controlled locking
Mechanism；The box of tricks includes Driven Gear of Final Reduction Gear（11）, be arranged in Driven Gear of Final Reduction Gear（11）On fixing axle（1）, it is same
Axis is rotatably arranged on fixing axle（1）On two planetary gears（2）And respectively with planetary gear（2）The two and half of engagement connection
Shaft gear（3）, it is characterised in that：In the Driven Gear of Final Reduction Gear（11）On be coaxially provided with and be rotatably dispose in shell（5）In difference
Fast device shell（4）, the fixing axle（1）It is fixed at differential mechanism shell（4）In, planetary gear（2）And axle shaft gear（3）
It is rotatably arranged on differential mechanism shell（4）In, planetary gear（2）Including being used for and axle shaft gear（3）Engage the ontology of cooperation
（202）And and ontology（202）Coaxially connected locking wheel（201）；The automatically controlled lockable mechanism includes sliding to be threaded through to open up
In differential mechanism shell（4）On pin hole in axis pin（7）And for pushing axis pin（7）Along the Electromagnetic Control dress of pin hole sliding
It sets, axis pin（7）Positioned at differential mechanism shell（4）In one end and the locking wheel（201）Position it is corresponding and equipped with for
Locking wheel（201）Cooperation is with by planetary gear（2）The locking pin block of braking（14）, electromagnetic control apparatus includes armature disc（6）, electricity
Magnetic coil（8）, conducting slip ring（10）And conductive contact（9）, armature disc（6）It is slidably arranged in differential mechanism shell（4）It is upper and right
Answer axis pin（7）Opposite to each other in locking pin block（14）One end, in axis pin（7）It is upper to be located at armature disc（6）With differential mechanism shell（4）Between
Equipped with resetting spring（13）, electromagnetic coil（8）And conducting slip ring（10）It is each attached to differential mechanism shell（4）Upper and electromagnetic coil
（8）With armature disc（6）Position it is corresponding, conductive contact（9）It is fixed at shell（5）On inner wall and and conducting slip ring（10）
Be engaged power supply.
2. a kind of electric-controlled mechanical differential lock according to claim 1, it is characterised in that：The differential mechanism shell（4）'s
In be fixed with two be in crossing distribution fixing axles（1）, any one fixing axle（1）On rotation set there are two the row
Star gear（2）, two axle shaft gears（3）Respectively with four planetary gears（2）On ontology（202）Engagement cooperation.
3. a kind of electric-controlled mechanical differential lock according to claim 2, it is characterised in that：The automatically controlled lockable mechanism includes
With four planetary gears（2）On locking wheel（201）Four axis pins being respectively cooperating with（7）.
4. a kind of electric-controlled mechanical differential lock according to claim 1, it is characterised in that：In the axis pin（7）It is upper opposite
In locking pin block（14）One end be removably connected with spring retainer block（12）, spring retainer block（12）Side and resetting spring
（13）Cooperation, other side setting are being opened in armature disc（6）On gland（15）In.
5. a kind of electric-controlled mechanical differential lock according to claim 1, it is characterised in that：The armature disc（6）With differential
Device shell（4）Between be slidably connected by spline structure.
6. a kind of electric-controlled mechanical differential lock according to claim 1, it is characterised in that：The conductive contact（9）Pass through
Conducting wire is connected with a vehicle-mounted power supply, and conducting wire is equipped with circuit controling switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810354330.9A CN108571571A (en) | 2018-04-19 | 2018-04-19 | A kind of electric-controlled mechanical differential lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810354330.9A CN108571571A (en) | 2018-04-19 | 2018-04-19 | A kind of electric-controlled mechanical differential lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108571571A true CN108571571A (en) | 2018-09-25 |
Family
ID=63575044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810354330.9A Pending CN108571571A (en) | 2018-04-19 | 2018-04-19 | A kind of electric-controlled mechanical differential lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108571571A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022206105A1 (en) * | 2021-03-31 | 2022-10-06 | 台州市铭轩汽车零部件制造有限公司 | Final drive capable of locking |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009228840A (en) * | 2008-03-24 | 2009-10-08 | Ｇｋｎ ドライブライン トルクテクノロジー株式会社 | Differential device and driving system using this differential device |
| US20100056314A1 (en) * | 2008-08-27 | 2010-03-04 | Gkn Driveline Torque Technology Kk | Differential Device |
| CN205654819U (en) * | 2015-12-31 | 2016-10-19 | 温岭市海风差速器有限公司 | Differential lock of manual automatically controlled locking |
-
2018
- 2018-04-19 CN CN201810354330.9A patent/CN108571571A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009228840A (en) * | 2008-03-24 | 2009-10-08 | Ｇｋｎ ドライブライン トルクテクノロジー株式会社 | Differential device and driving system using this differential device |
| US20100056314A1 (en) * | 2008-08-27 | 2010-03-04 | Gkn Driveline Torque Technology Kk | Differential Device |
| CN205654819U (en) * | 2015-12-31 | 2016-10-19 | 温岭市海风差速器有限公司 | Differential lock of manual automatically controlled locking |
Non-Patent Citations (1)
| Title |
|---|
| 蒋智庆: "《汽车电器设备构造与维修》", 31 July 2005, 重庆大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022206105A1 (en) * | 2021-03-31 | 2022-10-06 | 台州市铭轩汽车零部件制造有限公司 | Final drive capable of locking |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180925 |
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| RJ01 | Rejection of invention patent application after publication |