CN205446607U - Differential mechanism for tractor with hydraulic pressure differential lock - Google Patents
Differential mechanism for tractor with hydraulic pressure differential lock Download PDFInfo
- Publication number
- CN205446607U CN205446607U CN201620170933.XU CN201620170933U CN205446607U CN 205446607 U CN205446607 U CN 205446607U CN 201620170933 U CN201620170933 U CN 201620170933U CN 205446607 U CN205446607 U CN 205446607U
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- differential
- bearing
- gear
- planetary gear
- axle
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Abstract
Differential mechanism for tractor with hydraulic pressure differential lock includes: left and right differential mechanism bearing, left and right differential mechanism casing, big bevel gear, long planetary gear axle, left and right differential side gear, planetary gear, bearing, bearing retaining ring, long, short spacer, differential lock piston, differential lock pressure disk, differential lock friction disk, planetary gear ladder semi -axis, left and right differential mechanism casing is connected, and four built -in planetary gear are respectively with right, the left differential side gear meshing of differential mechanism, splined connection on left differential side gear and the differential lock friction disk. Four planetary gear are equipped with long planetary gear axle and planetary gear ladder semi -axis, and long planetary gear axle is connected with right differential mechanism casing, four planetary gear and long planetary gear axle and two planetary gear ladder semi -axiss are equipped with bearing within a definite time, left and right differential mechanism casing is connected with left and right differential mechanism bearing respectively, big bevel gear is connected with right differential mechanism casing, left and right differential mechanism bearing fixes respectively behind the tractor on the transmission case casing.
Description
Technical field
This utility model belongs to tractor field, relates to a kind of differential for tractors device with hydraulic differential lock.
Background technology
At present, along with the expansion of China's large power wheel tractor market demand, particularly in northwest, North China and the Northeast, big-and-middle-sized and wheeled heavy-duty tractor already takes up leading market status.This just requires that the power train that tractor is configured has more safe and reliable performance.But, the differential mechanism used by big-and-middle-sized and wheeled heavy-duty Tractor Power Train inside that China produces, widely used is simple-type enclosed conical gear structure, and its structure is generally equipped with four planetary gears, and four planetary connections typically use the form of axle sleeve axle.Owing to being limited by structure and space, if wherein the intensity of a planetary gear axle is on the weak side in this form, and structure is more complicated, Tractor Power Train all be there may be to hidden danger.Therefore, it is necessary to develop a kind of compact conformation, use reliable, easy for installation and that the transmission of large power wheel tractor power train heavy load can be realized differential cross pin, promote the reliability of Tractor Power Train further.
Utility model content
The purpose of this utility model is to provide a kind of compact conformation, use the differential for tractors device with hydraulic differential lock reliable, easy for installation.
The technical solution of the utility model is: the differential for tractors locked with hydraulic differential, including: left differential bearing bearing, left differential casing, right differential casing, bevel gear wheel, long planet gear axle, planetary gear thrust washer, right differential bearing bearing, right axle shaft gear, planetary gear, needle bearing, needle bearing back-up ring, long spacer, differential lock piston, differential lock platen, differential lock frictional disk, left half axle gear, planetary gear ladder semiaxis, short spacer；Left differential casing and right differential casing are bolted, built-in four planetary gears, engage with differential mechanism right axle shaft gear and differential mechanism left half axle gear respectively, and left half axle gear is connected with the spline on differential lock frictional disk.Four planetary gears are equipped with a root length planetary gear axle and two planetary gear ladder semiaxis, and equipped with planetary gear thrust washer between planetary gear and right differential casing, long planet gear axle is connected by planet wheel spindle pin with right differential casing；Between four planetary gears and long planet gear axle and two planetary gear ladder semiaxis, needle bearing is installed；Left differential casing is connected with right differential bearing bearing with left differential bearing bearing respectively with right differential casing, and passes through seal ring seal respectively.Left differential bearing bearing, right differential bearing bearing are bolted on after tractor on mechanism housing respectively, and bevel gear wheel is connected with right differential casing by bolt.
Being equipped with hydraulic pressure oil duct inside right differential casing, oil-in, on right differential bearing bearing, passes through seal ring seal between right differential casing and right differential bearing bearing.
Long planet gear axle and two planetary gear ladder semiaxis are connected by a long spacer and two short spacer crosss.
Right differential casing inner surface is provided with annular positioning groove, and locating slot passes through long planet gear axle and two planetary gear ladder semiaxis two axial lines, and is divided equally by long planet gear axle and two planetary gear ladder semiaxis two axial lines；Planetary gear thrust washer becomes 180 ° of distributions with two location flange, two location flange；Two location flange are fixed in right differential casing inner surface annular positioning groove.
This utility model can reach following good effect after using technique scheme: the long planet gear axle of differential mechanism and planetary gear ladder semiaxis are to be connected by the short spacer cross of a long spacer and two, needle bearing is installed between both and four planetary gears, long planet gear axle construction is simple, intensity is higher, planetary gear thrust washer two positions flange and is fixed in right differential casing inner surface annular positioning groove, planetary gear thrust washer can be avoided rotating together with four planetary gears very well, eliminate planetary gear thrust washer with right differential casing inner surface wear phenomenon, and then improve the reliability of this differential cross pin.It is equipped with oil duct inside the rightest differential casing, hydraulic oil can enter inside differential lock plunger shaft by oil duct, thus promote differential lock piston to compress differential lock platen and differential lock frictional disk, and differential lock frictional disk is connected by spline with left half axle gear, therefore differential mechanism locking function can be realized, improve the traction property of tractor and the property passed through further.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the differential for tractors device that this utility model is locked with hydraulic differential；
Fig. 2 is the left view structural representation of the differential for tractors device that this utility model is locked with hydraulic differential；
Fig. 3 is the planetary gear thrust washer structural representation of the differential for tractors device that this utility model is locked with hydraulic differential；
Fig. 4 is the B-B generalized section of Fig. 3.
Detailed description of the invention
Below by accompanying drawing, this utility model is described further.As shown in Fig. 1 ~ 4, with the differential for tractors device of hydraulic differential lock, mainly it is made up of left differential bearing bearing 1, left differential casing 2, right differential casing 3, bevel gear wheel 4, long planet gear axle 5, planetary gear thrust washer 6, right differential bearing bearing 7, right axle shaft gear 8, planetary gear 9, needle bearing 10, needle bearing back-up 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 ladder semiaxis 17, short spacer 18 etc..Differential casing is divided into left differential casing 2 and right differential casing 3, left and right differential casing is bolted, right differential casing 3 engages with differential mechanism right axle shaft gear 8 and differential mechanism left half axle gear 16 respectively built with four planetary gears 9, four planetary gears 9 are equipped with a root length planetary gear axle 5 and two short planet gear ladder semiaxis 17, long planet gear axle 5 is connected by long spacer 12 and short spacer 18 cross with two short planet gear ladder semiaxis 17, equipped with planetary gear thrust washer 6 between planetary gear 9 and right differential casing 3, long planet gear axle 5 is connected by planet wheel spindle pin with right differential casing 3.Bevel gear wheel 4 is connected with right differential casing 3 by bolt.Right differential casing 3 inner surface has dug annular positioning groove H, locating slot H and has passed through long planet gear axle 5 and two planetary gear ladder semiaxis 17 two axial lines, and is divided equally with two planetary gear ladder semiaxis 17 two axial lines by long planet gear axle 5；Planetary gear thrust washer 6 becomes 180 ° of distributions with two location flange h, two location flange h；Owing to two location flange h are fixed in right differential casing 3 inner surface annular positioning groove H, so planetary gear thrust washer can be avoided rotating together with four planetary gears very well, eliminate planetary gear thrust washer with right differential casing inner surface wear phenomenon between the two, and then improve the reliability of this differential cross pin.
During work, power is delivered to right differential casing 3 from bevel gear wheel 4, right differential casing 3 rotarily drives 5, two short planet gear ladder semiaxis 17 of long planet gear axle, long spacer 12 and short spacer 18 and rotates, long planet gear axle 5 and two short planet gear ladder semiaxis 17 drive four planetary gears 9 to rotate, four planetary gears 9 engage with differential mechanism left half axle gear 16 and differential mechanism right axle shaft gear 8, differential mechanism left half axle gear 16 and differential mechanism right axle shaft gear 8 and right differential casing 3 rotating Vortex.Due to four planetary gears 9, by long spacer 12 and short spacer 18, empty set is on long planet gear axle 5 and two short planet gear ladder semiaxis 17 respectively, and differential mechanism left half axle gear 16 and differential mechanism right axle shaft gear 8 are by realizing different rotating speeds from the engagement of four planetary gears 9.
When the attachment condition of one driving wheel of tractor is very poor, need to close differential lock, detailed description of the invention is: hydraulic oil enters from oil-in A, enter in differential lock oil cylinder by the oil duct within right differential casing 3, hydraulic oil promotes differential lock piston 13, thus compress differential lock platen 14 and differential lock frictional disk 15, and differential lock frictional disk 15 is connected with left half axle gear 16 by internal spline, now differential lock is left half axle gear 16 and left differential casing 2, right differential casing 3 is interlocked, differential mechanism is made to lose differential action, left, right driving wheel each plays circumferential force by its adhesion property, circumferential force sum increases, thus improve the hauling ability of tractor and the property passed through.
Claims (5)
1. with the differential for tractors of hydraulic differential lock, including: left differential bearing bearing (1), left differential casing (2), right differential casing (3), bevel gear wheel (4), long planet gear axle (5), planetary gear thrust washer (6), right differential bearing bearing (7), right axle shaft gear (8), planetary gear (9), needle bearing (10), needle bearing back-up 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 ladder semiaxis (17), short spacer (18)；It is characterized in that: left differential casing (2) and right differential casing (3) are bolted, built-in four planetary gears (9), engaging with differential mechanism right axle shaft gear (8) and differential mechanism left half axle gear (16) respectively, left half axle gear (16) is connected with the spline on differential lock frictional disk (15)；Four planetary gears (9) are equipped with root length planetary gear axle (5) and two planetary gears ladder semiaxis (17), equipped with planetary gear thrust washer (6) between planetary gear (9) and right differential casing (3), long planet gear axle (5) is connected by planet wheel spindle pin with right differential casing (3)；Between four planetary gears (9) and long planet gear axle (5) and two planetary gears ladder semiaxis (17), needle bearing (10) is installed；Left differential casing (2) is connected with right differential bearing bearing (7) with left differential bearing bearing (1) respectively with right differential casing (3), and passes through seal ring seal respectively.
Differential for tractors with hydraulic differential lock the most according to claim 1, it is characterized in that: left differential bearing bearing (1), right differential bearing bearing (7) are bolted on after tractor on mechanism housing respectively, and bevel gear wheel (4) is connected with right differential casing (3) by bolt.
Differential for tractors with hydraulic differential lock the most according to claim 1, it is characterized in that: right differential casing (3) is internally provided with hydraulic pressure oil duct, oil-in, on right differential bearing bearing (7), passes through seal ring seal between right differential casing (3) and right differential bearing bearing (7).
Differential for tractors with hydraulic differential lock the most according to claim 1, it is characterised in that: long planet gear axle (5) is connected by a long spacer (12) and two short spacer (18) crosss with two planetary gears ladder semiaxis (17).
Differential for tractors with hydraulic differential lock the most according to claim 1, it is characterized in that: right differential casing (3) inner surface is provided with annular positioning groove (H), locating slot (H) is by long planet gear axle (5) and two planetary gear ladder semiaxis (17) two axial lines, and is divided equally with two planetary gear ladder semiaxis (17) two axial lines by long planet gear axle (5)；Planetary gear thrust washer (6) becomes 180 ° of distributions with two location flange (h), two location flange (h)；Two location flange (h) are fixed in right differential casing (3) inner surface annular positioning groove (H).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620170933.XU CN205446607U (en) | 2016-03-07 | 2016-03-07 | Differential mechanism for tractor with hydraulic pressure differential lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620170933.XU CN205446607U (en) | 2016-03-07 | 2016-03-07 | Differential mechanism for tractor with hydraulic pressure differential lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446607U true CN205446607U (en) | 2016-08-10 |
Family
ID=56605441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620170933.XU Expired - Fee Related CN205446607U (en) | 2016-03-07 | 2016-03-07 | Differential mechanism for tractor with hydraulic pressure differential lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205446607U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697712A (en) * | 2016-03-07 | 2016-06-22 | 第拖拉机股份有限公司 | Differential with hydraulic differential lock for tractor |
| CN108953547A (en) * | 2018-09-10 | 2018-12-07 | 柳工柳州传动件有限公司 | Hydraulic Lock differential mechanism |
-
2016
- 2016-03-07 CN CN201620170933.XU patent/CN205446607U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697712A (en) * | 2016-03-07 | 2016-06-22 | 第拖拉机股份有限公司 | Differential with hydraulic differential lock for tractor |
| CN105697712B (en) * | 2016-03-07 | 2018-10-30 | 第一拖拉机股份有限公司 | Differential for tractors device with hydraulic differential lock |
| CN108953547A (en) * | 2018-09-10 | 2018-12-07 | 柳工柳州传动件有限公司 | Hydraulic Lock differential mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20210307 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |