CN103742622B - A kind of differential lock - Google Patents
A kind of differential lock Download PDFInfo
- Publication number
- CN103742622B CN103742622B CN201410033568.3A CN201410033568A CN103742622B CN 103742622 B CN103742622 B CN 103742622B CN 201410033568 A CN201410033568 A CN 201410033568A CN 103742622 B CN103742622 B CN 103742622B
- Authority
- CN
- China
- Prior art keywords
- brake shoe
- lock
- differential lock
- fixed seat
- differential
- 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.)
- Expired - Fee Related
Links
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
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/22—Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The present invention relates to Automobile drive technical field, specifically related to a kind of differential lock, it includes differential lock shaft, cylindric lock seat, bearing fixed seat, the shell of bearing and cylindrical shape, the one end of the differential lock shaft is provided with fixed seat, the upper surface close to its end of lock seat is provided with symmetrical brake shoe, linked together between brake shoe by the elastomeric element along lock seating face, brake shoe can around its end axis rotation, the lock cover for seat is closed and is connected on the differential lock shaft, brake shoe side coordinates with fixed seat, opposite side is connected to the bearing fit on the lock seat with fit, the bearing is in bearing fixed seat, the bearing fixed seat is in shell, the end of the brake shoe is higher than the outer surface of the shell.The present invention is simple in construction；Due to without using friction plate but brake shoe, brake shoe will not the long-time friction as friction plate, it is hardly damaged, without frequently replacing, reduce use cost.
Description
Technical field
The present invention relates to Automobile drive technical field, more particularly to a kind of differential lock.
Background technology
The power of automobile engine is through clutch, speed changer, power transmission shaft, and finally proceeding to drive axle, left and right distributes to half again
Axle driving moment, in this power transmission approach, drive axle is last assembly, and its critical piece is decelerator and difference
Fast device.
Open differential is by planetary gear, planetary wheel carrier（Differential carrier）, the part such as axle shaft gear composition.Engine it is dynamic
Power enters differential mechanism through power transmission shaft, directly drives planetary wheel carrier, then drives left and right two semiaxis by planetary gear, drive respectively it is left,
Right wheel.When automobile is kept straight on, left and right wheel is equal with the rotating speed of planetary wheel carrier three to be in poised state, and turns in automobile
Three's poised state is destroyed when curved, causes inner side wheel speed to reduce, the increase of outside wheel speed.The effect of differential mechanism be exactly to
While the semiaxis transmission power of both sides, it is allowed to which both sides semiaxis is rotated with different rotating speeds, meets two sidecar wheels as far as possible with pure rolling
Dynamic form makees Unequal distance traveling, reduces the friction on tire and ground.And when driving wheel skids it is necessary to using differential lock will
Differential carrier and half shaft locking are integral, differential mechanism is lost differential action, all torsion torque can be transferred to opposite side driving
On wheel.
Differential lock in the market is substantially the form using friction plate, and latch functions are reached by friction.This difference
Speed lock friction plate is easily damaged, and the life-span is shorter, and frequently replacing causes trouble and improves use cost.
The content of the invention
The problem to be solved in the present invention is traditional differential lock short life, change trouble, the high defect of use cost there is provided
A kind of differential lock, its long lifespan, features simple structure, use cost are low.
The embodiment of the present invention provides a kind of differential lock, and it includes differential lock shaft, cylindric lock seat, bearing fixed seat, axle
Hold and cylindric shell, the one end of the differential lock shaft is provided with fixed seat, the upper surface close to its end of lock seat
Provided with symmetrical brake shoe, linked together between brake shoe by the elastomeric element along lock seating face, brake shoe can around its end axle
The heart is rotated, and the lock cover for seat is closed and is connected on the differential lock shaft, and brake shoe side coordinates with fixed seat, and opposite side is connected with fit
Bearing fit on lock seat, the bearing is in bearing fixed seat, and the bearing fixed seat is described in shell
The end of brake shoe is higher than the outer surface of the shell.
The brake shoe coordinates with the fixed seat and the equal gap of shell.
The length of the bearing fixed seat, bearing and lock seat is respectively less than the shell）Length.
The one end of the differential lock shaft stretches out the shell.
The end of the shell is provided with differential lock fixed seat, and the differential lock shaft end stretches into the differential lock fixed seat
It is interior.
Ball fixed seat is provided between the brake shoe and bearing fixed seat.
The elastomeric element is spring.
A kind of differential mechanism, including the differential lock, the differential lock are fixedly mounted on left half axle gear and the right side of differential mechanism
On output shaft between axle shaft gear, brake shoe is located at the planetary lower end of differential mechanism.
A kind of application method of above-mentioned differential mechanism, when one of driving wheel of vehicle skids, driving wheel can drive a left side
Axle shaft gear or the rotation of right axle shaft high-speed gear, axle shaft gear drive planetary gear rotation at a high speed again, are arranged on planetary gear
Outwardly opened in the presence of the centrifugal force that the brake shoe of lower end is produced when planetary high speed rotates by elastomeric element, brake shoe
Stop the rotation, differential lock is locked, left and right sidesing driving wheel is driven simultaneously；
After driving wheel stops skidding, planetary rotary speed reduction, brake shoe return in the presence of elastomeric element,
Differential lock unlocks state, recovers the script function of differential mechanism.
The elastomeric element is spring.
Differential lock of the present invention, beneficial effect compared with prior art is：
By the parts such as differential lock shaft, brake shoe one differential lock of formation, it is arranged on differential mechanism, is caused by brake shoe
Differential lock is locked or only locked, and reaching makes left and right sidesing driving wheel while the purpose of driving or differential lock script function.Its is simple in construction；
Due to without using friction plate but brake shoe, brake shoe will not the long-time friction as friction plate, it is hardly damaged, without frequently more
Change, reduce use cost.
Brief description of the drawings
Accompanying drawing 1 is the assembling structure sectional view of differential lock of the embodiment of the present invention；
Accompanying drawing 2 is the differential lock axle construction sectional view of differential lock of the embodiment of the present invention；
Accompanying drawing 3 is the ball fixed seat structure sectional view of differential lock of the embodiment of the present invention；
Accompanying drawing 4 is intended to for the lock holder structure section view of differential lock of the embodiment of the present invention；
Accompanying drawing 5 is the shell mechanism sectional view of differential lock of the embodiment of the present invention；
Accompanying drawing 6 is differential lock of the embodiment of the present invention and differential mechanism assembling structure phantom；
Accompanying drawing 7 is differential lock of the embodiment of the present invention and differential mechanism assembling structure sectional view；
Accompanying drawing 8 is that the brake shoe on differential lock of the embodiment of the present invention acts schematic diagram in planetary lower end.
Wherein：
1st, differential lock shaft；2nd, lock seat；3rd, bearing fixed seat；4th, bearing；5th, shell；6th, fixed seat；7th, brake shoe；8th, bullet
Property part；9th, differential lock fixed seat；10th, ball fixed seat；11st, left half axle gear；12nd, right axle shaft gear；13rd, planetary gear.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with accompanying drawing
It is described in detail on step ground.
Embodiment：
Reference picture 1 ~ 5, differential lock of the present invention, including differential lock shaft 1, lock seat 2, bearing fixed seat 3, bearing 4 and
Shell 5.Lock seat 2 is cylindrical shape, and it can coordinate with differential lock shaft 1, and shell is also cylindrical shape, and it can be with bearing fixed seat 3
Coordinate.
The one end surface of lock seat 2 is connected with symmetrically arranged brake shoe 7, brake shoe 7 can around its end axis rotation.Brake shoe
Linked together between 7 by elastomeric element 8, elastomeric element 8 is preferably spring part.The one end of differential lock shaft 1 is provided with fixation
Seat 6, lock 2 fits of seat are connected on differential lock shaft 1, and side and the gap of fixed seat 6 of brake shoe 7 coordinate.Bearing 4 is fixed located at bearing
In seat 3, the fit of bearing 4 is connected on differential lock shaft 1, and opposite side and the gap of bearing 4 of brake shoe 7 coordinate.Bearing fixed seat 3 is located at
In shell 5, the one end of differential lock shaft 1 stretches out shell 5.The end of brake shoe 7 is higher than the outer surface of shell 5, so that it can be with row
The end of star gear coordinates.
The end of shell 5 is provided with differential lock fixed seat 9, and the end of differential lock shaft 1 is stretched into differential lock fixed seat 9, with logical
Cross differential lock fixed seat 9 differential lock is fixed on the axle of differential mechanism.
Wherein, the length of bearing fixed seat 3, bearing 4 and lock seat 2 is respectively less than the length of shell 5, so that it can set
It is placed in shell 5.Ball fixed seat 10 is provided between brake shoe 7 and bearing fixed seat 3, preferably to install bearing.
Reference picture 6,7, above-mentioned differential lock is installed on the differential mechanism of automobile, is specifically：Differential lock is fixedly mounted on differential
On output shaft between the left half axle gear 11 and right axle shaft gear 12 of device, brake shoe 7 is located under the planetary gear 13 of differential mechanism
End.
When one of driving wheel of vehicle skids, driving wheel can drive left half axle gear 11 or right axle shaft gear 12
Rotate at a high speed, axle shaft gear drives planetary gear 13 to rotate at a high speed, is arranged on the brake shoe 7 of the lower end of planetary gear 13 in planet tooth again
Outwardly opened in the presence of the centrifugal force produced during the high speed rotation of wheel 13 by elastomeric element 8, now brake shoe 7 stops the rotation,
And then lock differential lock, left and right sidesing driving wheel is driven simultaneously；After driving wheel stops skidding, the rotary speed of planetary gear 13
Reduction, the return in the presence of elastomeric element 8 of brake shoe 7, differential lock unlocks state, recovers the script function of differential mechanism.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (8)
1. a kind of differential lock, it is characterised in that：
Including differential lock shaft（1）, cylindric lock seat（2）, bearing fixed seat（3）, bearing（4）And cylindric shell（5）,
The differential lock shaft（1）One end be provided with fixed seat（6）, the lock seat（2）The upper surface close to its end is provided with symmetrical
Brake shoe（7）, brake shoe（7）Between by along lock seat（2）The elastomeric element on surface（8）Link together, brake shoe（7）Can be around its end
Axis rotation, lock seat（2）Fit is connected to the differential lock shaft（1）On, brake shoe（7）Side and fixed seat（6）Coordinate,
Opposite side is connected to the lock seat with fit（2）On bearing（4）Coordinate, the bearing（4）Located at bearing fixed seat（3）It is interior,
The bearing fixed seat（3）Located at shell（5）It is interior, the brake shoe（7）End be higher than the shell（5）Outer surface；
The differential lock is fixedly mounted on the left half axle gear of differential mechanism（11）With right axle shaft gear（12）Between output shaft on,
Brake shoe（7）Positioned at the planetary gear of differential mechanism（13）Lower end；
The brake shoe（7）With the fixed seat（6）And shell（5）Equal gap coordinates；
The bearing fixed seat（3）, bearing（4）And lock seat（2）Length be respectively less than the shell（5）Length.
2. differential lock as claimed in claim 1, it is characterised in that：The differential lock shaft（1）One end stretch out the shell
（5）.
3. differential lock as claimed in claim 1, it is characterised in that：The shell（5）End be provided with differential lock fixed seat
（9）, the differential lock shaft（1）The differential lock fixed seat is stretched into end（9）It is interior.
4. differential lock as claimed in claim 1, it is characterised in that：The brake shoe（7）With bearing fixed seat（3）Between provided with rolling
Pearl fixed seat（10）.
5. differential lock as claimed in claim 1, it is characterised in that：The elastomeric element（8）For spring.
6. a kind of differential mechanism, it is characterised in that：Including the differential lock described in claim 1.
7. a kind of application method of differential mechanism as claimed in claim 6, it is characterised in that：
When one of driving wheel of vehicle skids, driving wheel can drive left half axle gear（11）Or right axle shaft gear（12）
Rotate at a high speed, axle shaft gear drives planetary gear again（13）Rotate at a high speed, be arranged on planetary gear（13）The brake shoe of lower end（7）
Planetary gear（13）High speed rotation when the centrifugal force that produces in the presence of by elastomeric element（8）Outwardly open, brake shoe（7）Stop
Spin-ended turn, differential lock is locked, left and right sidesing driving wheel is driven simultaneously；
After driving wheel stops skidding, planetary gear（13）Rotary speed reduction, brake shoe（7）In elastomeric element（8）Effect
Lower return, differential lock unlocks state, recovers the script function of differential mechanism.
8. the application method of differential mechanism according to claim 7, it is characterised in that：The elastomeric element（8）For spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033568.3A CN103742622B (en) | 2014-01-24 | 2014-01-24 | A kind of differential lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033568.3A CN103742622B (en) | 2014-01-24 | 2014-01-24 | A kind of differential lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103742622A CN103742622A (en) | 2014-04-23 |
| CN103742622B true CN103742622B (en) | 2017-08-01 |
Family
ID=50499673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410033568.3A Expired - Fee Related CN103742622B (en) | 2014-01-24 | 2014-01-24 | A kind of differential lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103742622B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042025A (en) * | 2015-05-09 | 2015-11-11 | 陈学福 | Friction type automobile differential mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1984653A2 (en) * | 2006-02-15 | 2008-10-29 | Eaton Corporation | Mechanical locking differential lockout mechanism |
| CN101936376A (en) * | 2009-05-29 | 2011-01-05 | 伊顿公司 | The locking differential differential gear of friction disk unloading |
| CN201953946U (en) * | 2011-03-02 | 2011-08-31 | 江铃控股有限公司 | Automobile locking differential |
| CN203809639U (en) * | 2014-01-24 | 2014-09-03 | 优必胜(福建)机械工业有限公司 | Differential lock |
-
2014
- 2014-01-24 CN CN201410033568.3A patent/CN103742622B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1984653A2 (en) * | 2006-02-15 | 2008-10-29 | Eaton Corporation | Mechanical locking differential lockout mechanism |
| CN101384836A (en) * | 2006-02-15 | 2009-03-11 | 伊顿公司 | Mechanical locking differential lockout mechanism |
| CN101936376A (en) * | 2009-05-29 | 2011-01-05 | 伊顿公司 | The locking differential differential gear of friction disk unloading |
| CN201953946U (en) * | 2011-03-02 | 2011-08-31 | 江铃控股有限公司 | Automobile locking differential |
| CN203809639U (en) * | 2014-01-24 | 2014-09-03 | 优必胜(福建)机械工业有限公司 | Differential lock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103742622A (en) | 2014-04-23 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170801 Termination date: 20180124 |