CN105697712B - Differential for tractors device with hydraulic differential lock - Google Patents
Differential for tractors device with hydraulic differential lock Download PDFInfo
- Publication number
- CN105697712B CN105697712B CN201610126762.5A CN201610126762A CN105697712B CN 105697712 B CN105697712 B CN 105697712B CN 201610126762 A CN201610126762 A CN 201610126762A CN 105697712 B CN105697712 B CN 105697712B
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- differential
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- casing
- planetary gear
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- 125000006850 spacer group Chemical group 0.000 claims abstract description 19
- 241000239290 Araneae Species 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009699 differential effect Effects 0.000 description 1
- 230000000916 dilatatory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005096 rolling process 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
- F16H48/06—Differential gearings with gears having orbital motion
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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
- F16H48/32—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using fluid pressure actuators
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid Mechanics (AREA)
- Retarders (AREA)
Abstract
Differential for tractors with hydraulic differential lock, including：Left and right differential bearing bearing, left and right differential casing, bevel gear wheel, long planet gear axis, left and right half gear, planetary gear, needle bearing, needle bearing baffle ring, long and short spacer, differential lock piston, differential lock platen, differential lock frictional disk, planetary gear ladder semiaxis；Left and right differential casing connection, built-in four planetary gears, right with differential mechanism respectively, left half axle gear engage, and left half axle gear is connect with differential lock frictional disk upper spline.Four planetary gears are connect equipped with long planet gear axis and planetary gear ladder semiaxis, long planet gear axis with right differential casing；Four planetary gears are equipped with needle bearing with long planet gear axis and two half between centers of planetary gear ladder；Left and right differential casing is connected with left and right differential bearing bearing respectively；Bevel gear wheel is connect with right differential casing；Left and right differential bearing bearing is separately fixed at after tractor on mechanism housing.
Description
Technical field
The invention belongs to tractor fields, are related to a kind of differential for tractors device with hydraulic differential lock.
Background technology
Currently, with the expansion of China's large power wheel tractor market demand, especially in northwest, North China and northeast ground
Area, large and medium-sized and wheeled heavy-duty tractor already take up leading market status.This requires the power trains that tractor is configured
With more safe and reliable performance.But used in the large and medium-sized and wheeled heavy-duty Tractor Power Train inside of China's production
Differential mechanism, widely used is simple-type enclosed conical gear structure, and structure is generally equipped with four planetary gears, four rows
The connection of star gear generally uses the form of axle sleeve axis.Due to being limited by structure and space, if in this form wherein
The intensity of a piece planetary gear shaft is on the weak side, and structure is more complex, and for Tractor Power Train, all there may be hidden danger.Therefore,
It is necessary to develop it is a kind of it is compact-sized, using reliable, easy for installation and can realize large power wheel tractor power train heavy load
The differential cross pin of transmission further promotes the reliability of Tractor Power Train.
Invention content
The purpose of the present invention is to provide it is a kind of it is compact-sized, using reliable, easy for installation with hydraulic differential lock
Differential for tractors device.
The technical scheme is that：Differential for tractors with hydraulic differential lock, including：Left differential bearing branch
Seat, left differential casing, right differential casing, bevel gear wheel, long planet gear axis, planetary gear thrust washer, right differential mechanism
Bearing spider, right axle shaft gear, planetary gear, needle bearing, needle bearing baffle ring, long spacer, differential lock piston, differential lock pressure
Disk, differential lock frictional disk, left half axle gear, planetary gear ladder semiaxis, short spacer；Left differential casing and right differential casing
It is bolted, built-in four planetary gears are engaged with differential mechanism right axle shaft gear and differential mechanism left half axle gear respectively, left
Axle shaft gear is connected with the spline on differential lock frictional disk.Four planetary gears are equipped with a root long planetary gear shaft and two rows
Star gear ladder semiaxis, between planetary gear and right differential casing be equipped with planetary gear thrust washer, long planet gear axis with
Right differential casing is connected by planet wheel spindle pin；Four planetary gears and long planet gear axis and two planetary gear ladders
Needle bearing is installed between semiaxis；Left differential casing and right differential casing are respectively the same as left differential bearing bearing and right difference
Fast device bearing spider is connected, and passes through seal ring seal respectively.Left differential bearing bearing, right differential bearing bearing difference
It is bolted on after tractor on mechanism housing, bevel gear wheel is connected by bolt with right differential casing.
Hydraulic pressure oil duct is equipped with inside right differential casing, oil inlet is on right differential bearing bearing, right differential casing
Pass through seal ring seal between right differential bearing bearing.
Long planet gear axis and two planetary gear ladder semiaxis are connected by a long spacer and two short spacer cross
It connects.
Right differential casing inner surface is provided with annular positioning groove, and locating slot passes through long planet gear axis and two planet teeth
Ladder semiaxis two axial lines are taken turns, and are divided equally by long planet gear axis and two planetary gear ladder semiaxis two axial lines；Planetary gear stops
Pushing pad piece band is distributed there are two flange, two positioning flange are positioned at 180 °；Two positioning flange are fixed on table in right differential carrier body
In the annular positioning groove of face.
The present invention can reach following good effect after using above-mentioned technical proposal：The long planet gear axis and planet of differential mechanism
Gear ladder semiaxis is connected by a long spacer and two short spacer cross, and rolling is installed between the two and four planetary gears
Needle bearing, long planet gear axle construction is simple, and intensity is higher, and planetary gear thrust washer two positions flange and is fixed on right differential mechanism
In shell inner surface annular positioning groove, planetary gear thrust washer can avoid rotating together with four planetary gears very well, eliminate
Planetary gear thrust washer improves the reliability of this differential cross pin with right differential casing inner surface wear phenomenon.
It is equipped with oil duct inside right differential casing simultaneously, high pressure oil can be entered inside differential lock plunger shaft by oil duct, to push
Differential lock piston compresses differential lock platen and differential lock frictional disk, and differential lock frictional disk passes through spline phase with left half axle gear
Even, therefore differential mechanism locking function may be implemented, further increases the traction property and passability of tractor.
Description of the drawings
Fig. 1 is the main structure diagram of differential for tractors device of the present invention with hydraulic differential lock；
Fig. 2 is the left view structural representation of differential for tractors device of the present invention with hydraulic differential lock；
Fig. 3 is that the planetary gear thrust washer structure of differential for tractors device of the present invention with hydraulic differential lock is shown
It is intended to；
Fig. 4 is the B-B diagrammatic cross-sections of Fig. 3.
Specific implementation mode
Below by attached drawing, the present invention is described further.As shown in Fig. 1 ~ 4, with the dilatory of hydraulic differential lock
Machine differential cross pin, mainly by left differential bearing bearing 1, left differential casing 2, right differential casing 3, bevel gear wheel 4,
Long planet gear axis 5, planetary gear thrust washer 6, right differential bearing bearing 7, right axle shaft gear 8, planetary gear 9, needle roller
Bearing 10, needle bearing baffle ring 11, long spacer 12, differential lock piston 13, differential lock platen 14, differential lock frictional disk 15, left half
The compositions such as shaft gear 16, planetary gear ladder semiaxis 17, short spacer 18.Differential casing is divided into left differential casing 2 and the right side
Differential casing 3, left and right differential casing are bolted, right differential casing 3 it is built-in there are four planetary gear 9 respectively with
Differential mechanism right axle shaft gear 8 and differential mechanism left half axle gear 16 engage, and four planetary gears 9 are equipped with a root long planetary gear shaft 5
With two short planet gear ladder semiaxis 17, long planet gear axis 5 and two short planet gear ladder semiaxis 17 pass through long spacer
12 and the connection of 18 cross of short spacer, planetary gear thrust washer 6 is housed between planetary gear 9 and right differential casing 3, it is long
Planetary gear shaft 5 is connect with right differential casing 3 by planet wheel spindle pin.Bevel gear wheel 4 passes through bolt and right differential carrier
Body 3 is connected.The digging of 3 inner surface of right differential casing has annular positioning groove H, locating slot H to pass through long planet gear axis 5 and two planets
17 two axial lines of gear ladder semiaxis, and divided equally by long planet gear axis 5 and two 17 two axial lines of planetary gear ladder semiaxis；Planet
Gear thrust washer 6 is with there are two positioning flange h, two positioning flange h to be distributed at 180 °；Since two positioning flange h are fixed on the right side
In 3 inner surface annular positioning groove H of differential casing, so planetary gear thrust washer can be avoided with four planetary gears together very well
Rotation, eliminates the wear phenomenon of planetary gear thrust washer between the two with right differential casing inner surface, and then improve this
The reliability of differential cross pin.
When work, power is transmitted to from bevel gear wheel 4 on right differential casing 3, and the rotation of right differential casing 3 drives long row
5, two short planet gear ladder semiaxis 17 of star gear shaft, long spacer 12 and short spacer 18 rotate, long planet gear axis 5 and two
Short planet gear ladder semiaxis 17 drives four planetary gears 9 to rotate, four planetary gears 9 and differential mechanism left half axle gear 16
And differential mechanism right axle shaft gear 8 engages, differential mechanism left half axle gear 16 and differential mechanism right axle shaft gear 8 and right differential casing 3
Rotating Vortex.Since four planetary gears 9 distinguish empty set in long planet gear axis 5 and two by long spacer 12 and short spacer 18
On short planet gear ladder semiaxis 17, differential mechanism left half axle gear 16 and differential mechanism right axle shaft gear 8 by with four planet teeth
Different rotating speeds is realized in the engagement of wheel 9.
When the attachment condition of one driving wheel of tractor is very poor, need to be closed differential lock, specific implementation mode is：High pressure
Oil enters from oil inlet A, is entered in differential lock oil cylinder by the oil duct inside right differential casing 3, and high pressure oil pushes differential lock
Piston 13, to compress differential lock platen 14 and differential lock frictional disk 15, and differential lock frictional disk 15 passes through internal spline and left half
Shaft gear 16 is connected, and differential lock interlocks left half axle gear 16 and left differential casing 2, right differential casing 3 at this time, makes difference
Fast device loses differential action, and left and right driving wheel respectively presses its adhesion property and plays circumferential force, and the sum of circumferential force increases, to carry
The hauling ability and passability of high tractor.
Claims (1)
1. the differential for tractors with hydraulic differential lock, including：Left differential bearing bearing（1）, left differential casing
（2）, right differential casing（3）, bevel gear wheel（4）, long planet gear axis（5）, planetary gear thrust washer（6）, right differential mechanism
Bearing spider（7）, right axle shaft gear（8）, planetary gear（9）, needle bearing（10）, needle bearing baffle ring（11）, long spacer
（12）, differential lock piston（13）, differential lock platen（14）, differential lock frictional disk（15）, left half axle gear（16）, planetary gear rank
Terraced semiaxis（17）, short spacer（18）；It is characterized in that：Left differential casing（2）With right differential casing（3）Connected by bolt
It connects, built-in four planetary gears（9）, respectively with differential mechanism right axle shaft gear（8）With differential mechanism left half axle gear（16）Engagement, it is left
Axle shaft gear（16）With differential lock frictional disk（15）On spline be connected；Four planetary gears（9）Equipped with a root long planet tooth
Wheel shaft（5）With two planetary gear ladder semiaxis（17）, planetary gear（9）With right differential casing（3）Between be equipped with planet tooth
Take turns thrust washer（6）, long planet gear axis（5）With right differential casing（3）It is connected by planet wheel spindle pin；Four planet teeth
Wheel（9）With long planet gear axis（5）And two planetary gear ladder semiaxis（17）Between needle bearing is installed（10）；Left differential
Device shell（2）With right differential casing（3）Respectively with left differential bearing bearing（1）With right differential bearing bearing（7）It is connected
It connects, and passes through seal ring seal respectively；Left differential bearing bearing（1）, right differential bearing bearing（7）It is solid by bolt respectively
It is scheduled on after tractor on mechanism housing, bevel gear wheel（4）Pass through bolt and right differential casing（3）It is connected；Right differential carrier
Body（3）It is internally provided with hydraulic pressure oil duct, oil inlet is in right differential bearing bearing（7）On；Long planet gear axis（5）With two rows
Star gear ladder semiaxis（17）Pass through a long spacer（12）With two short spacers（18）Cross connects；Right differential casing
（3）Inner surface is provided with annular positioning groove H, and locating slot H passes through long planet gear axis（5）With two planetary gear ladder semiaxis
（17）Two axial lines, and by long planet gear axis（5）With two planetary gear ladder semiaxis（17）Two axial lines are divided equally；Planetary gear stops
Pushing pad piece（6）There are two positioning flange h, two positioning flange h to be distributed at 180 ° for band；Two positioning flange h are fixed on right differential carrier
Body（3）In inner surface annular positioning groove H.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610126762.5A CN105697712B (en) | 2016-03-07 | 2016-03-07 | Differential for tractors device with hydraulic differential lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610126762.5A CN105697712B (en) | 2016-03-07 | 2016-03-07 | Differential for tractors device with hydraulic differential lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105697712A CN105697712A (en) | 2016-06-22 |
| CN105697712B true CN105697712B (en) | 2018-10-30 |
Family
ID=56220928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610126762.5A Active CN105697712B (en) | 2016-03-07 | 2016-03-07 | Differential for tractors device with hydraulic differential lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105697712B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108237899B (en) | 2016-12-27 | 2020-02-21 | 比亚迪股份有限公司 | Drive shaft locking device, power drive system and vehicle |
| US11560017B2 (en) | 2017-07-12 | 2023-01-24 | Axletech International Ip Holdings, Llc | Adjustable axle assembly for a vehicle |
| CN108799443A (en) * | 2018-07-10 | 2018-11-13 | 重庆青山工业有限责任公司 | A kind of differential assembly of automotive transmission |
| DE102019203015A1 (en) * | 2019-03-06 | 2020-09-10 | Zf Friedrichshafen Ag | Differential gears of a motor vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6554732B1 (en) * | 2001-05-22 | 2003-04-29 | Spicer Technology, Inc. | Differential assembly with modified limited slip clutch arrangement |
| CN201953944U (en) * | 2010-12-15 | 2011-08-31 | 烟台市东汽农业装备有限公司 | Differential mechanism |
| CN202468900U (en) * | 2012-02-28 | 2012-10-03 | 第一拖拉机股份有限公司 | Insertion shaft type four-planet-wheel differential mechanism for tractor |
| CN202463470U (en) * | 2012-02-17 | 2012-10-03 | 第一拖拉机股份有限公司 | Shafting spatial arrangement type rear axle of middle power wheeled tractor |
| CN203809638U (en) * | 2014-04-25 | 2014-09-03 | 徐工集团工程机械股份有限公司 | Hydraulic antiskid self-locking differential mechanism |
| CN204459056U (en) * | 2015-01-14 | 2015-07-08 | 第一拖拉机股份有限公司 | Wheeled tractor wet type differential lock |
| CN205446607U (en) * | 2016-03-07 | 2016-08-10 | 第一拖拉机股份有限公司 | Differential mechanism for tractor with hydraulic pressure differential lock |
-
2016
- 2016-03-07 CN CN201610126762.5A patent/CN105697712B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6554732B1 (en) * | 2001-05-22 | 2003-04-29 | Spicer Technology, Inc. | Differential assembly with modified limited slip clutch arrangement |
| CN201953944U (en) * | 2010-12-15 | 2011-08-31 | 烟台市东汽农业装备有限公司 | Differential mechanism |
| CN202463470U (en) * | 2012-02-17 | 2012-10-03 | 第一拖拉机股份有限公司 | Shafting spatial arrangement type rear axle of middle power wheeled tractor |
| CN202468900U (en) * | 2012-02-28 | 2012-10-03 | 第一拖拉机股份有限公司 | Insertion shaft type four-planet-wheel differential mechanism for tractor |
| CN203809638U (en) * | 2014-04-25 | 2014-09-03 | 徐工集团工程机械股份有限公司 | Hydraulic antiskid self-locking differential mechanism |
| CN204459056U (en) * | 2015-01-14 | 2015-07-08 | 第一拖拉机股份有限公司 | Wheeled tractor wet type differential lock |
| CN205446607U (en) * | 2016-03-07 | 2016-08-10 | 第一拖拉机股份有限公司 | Differential mechanism for tractor with hydraulic pressure differential lock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105697712A (en) | 2016-06-22 |
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