CN203686052U - Electric control hydraulic type clutch differential lock with multiple pieces of friction discs - Google Patents
Electric control hydraulic type clutch differential lock with multiple pieces of friction discs Download PDFInfo
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- CN203686052U CN203686052U CN201420015190.XU CN201420015190U CN203686052U CN 203686052 U CN203686052 U CN 203686052U CN 201420015190 U CN201420015190 U CN 201420015190U CN 203686052 U CN203686052 U CN 203686052U
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- oil
- annular
- control hydraulic
- differential
- differential lock
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Abstract
The utility model provides an electric control hydraulic type clutch differential lock with multiple pieces of friction discs. The electric control hydraulic type clutch differential lock comprises a differential shell (3), a rear half-shaft gear (6) and an annular oil cylinder cover (10). An annular oil cylinder (7) is installed at one end of the differential shell (3), the multiple pieces of friction discs (9) with external splines are installed at one end in the annular oil cylinder (7), and an annular piston (18) is installed at the other end of the annular oil cylinder (7). The multiple pieces of friction discs (8) with internal splines are installed on the rear half-shaft gear (6). An oil cylinder pressure chamber is formed between the annular oil cylinder cover (10) and the annular piston (18), an inner hole of the annular oil cylinder cover (10) and an inner hole of the annular piston (18) are in sliding fit with an oil inlet sleeve (11), wherein the oil inlet sleeve (11) is sequentially connected with a first oil pipe connector (13), a shell inner oil pipe (14), a second oil pipe connector (15), a solenoid valve (19) and an oil pump (20), and the solenoid valve (19) is controlled through electric signals. Through the structure, a vehicle can control a differential automatically according to various road surfaces and practical traveling situations, and therefore the vehicle can be in the most appropriate state.
Description
Technical field
The utility model relates to automobile differential lock, relates in particular to a kind of electrical-control hydraulic multi-disc friction disk clutch differential lock.
Background technique
The differential lock of automobile adopts the modes such as mechanical clutch, the castellated clutch of end face or the clutch of spline engagement shell type mostly at present.But its joint is not easy to, often needing to stop engages differential lock; Adopt in addition mechanical clutch differential lock, can only select two kinds of situations, differential mechanism or pin completely, or decontrol completely, and can not accomplish automatically to control the inner friction torque of differential mechanism to make vehicle in most suitable state according to various road surfaces and the actual conditions of travelling.
Therefore be necessary to design a kind of novel electrical-control hydraulic multi-disc friction disk clutch differential lock, to overcome the problems referred to above.
Model utility content
The purpose of this utility model is to overcome the defect of prior art, and a kind of electrical-control hydraulic multi-disc friction disk clutch differential lock that can accomplish automatically to control according to various road surfaces and the actual conditions of travelling differential mechanism is provided.
The utility model is achieved in that
The utility model provides a kind of electrical-control hydraulic multi-disc friction disk clutch differential lock, comprise a differential casing (3), one end of described differential casing (3) is provided with an annular cylinder (7), the annular friction dish (9) of multi-disc band external splines is equipped with in the interior one end of described annular cylinder (7), and the other end is equipped with annular piston (18); One rear differential gear (6), the annular friction dish (8) of multi-disc band internal spline is housed on described rear differential gear (6), and the described annular friction dish (8) with internal spline is crisscross arranged with the described annular friction dish (9) with external splines; One annular cylinder lid (10), between described annular cylinder lid (10) and described annular piston (18), form an oil cylinder working-pressure chamber, and described annular cylinder lid (10) is joined an oil-feed cover (11) with the endoporus cunning of described annular piston (18), described oil-feed cover (11) has one and goes out oil ring groove, described in go out oil ring groove and be communicated with described oil cylinder working-pressure chamber; Wherein, described oil-feed cover (11) connects one first oil connection (13), a housing inner oil tube (14), one second oil connection (15), a solenoid valve (19) and an oil pump (20) successively, and described solenoid valve (19) is by electrical signal control.
Further, also comprise a transition ring set (12), described transition ring set (12) is positioned between described oil-feed cover (11) and described the first oil connection (13).
Further, the bottom of described annular cylinder (7) is provided with through hole.
Further, on described differential casing (3), connect power input telescopic shaft (2) and a planetary pinion (4) simultaneously.
Further, described planetary pinion (4) connects a half front axle gear (5) and described rear differential gear (6), described half front axle gear (5) connects half front axle (17), semiaxis (16) after described rear differential gear (6) connects.
The utlity model has following beneficial effect:
Described oil-feed cover (11) connects described the first oil connection (13), described housing inner oil tube (14), described the second oil connection (15), described solenoid valve (19) and described oil pump (20) successively, and described solenoid valve (19) is by electrical signal control.Described electrical-control hydraulic multi-disc friction disk clutch differential lock, by said structure, can be realized according to various road surfaces and the actual conditions of travelling and accomplish to control automatically differential mechanism, thereby make vehicle in most suitable state.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the electrical-control hydraulic multi-disc friction disk clutch differential lock that Fig. 1 provides for the utility model embodiment.
Label declaration:
1. transmission case shell 2. power input telescopic shaft 3. differential casing 4. planetary pinions
5. the annular friction dish of rear differential gear 7. annular cylinders 8. of half front axle gear 6. with internal spline
9. the multi-disc annular friction dish 10. annular cylinder lid 11. oil-feed covers with external splines
12. transition ring set 13. first oil connection 14. casing inner oil tube 15. second oil connections
16 rear semiaxis 17. half front axle 18. annular pistons
embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making all other embodiments that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
As Fig. 1, the utility model embodiment provides a kind of electrical-control hydraulic multi-disc friction disk clutch differential lock, comprises a differential casing (3), and described differential casing (3) is installed in a transmission case shell (1).One end at described differential casing (3) fixedly mounts an annular cylinder (7) by screw, and one section of internal spline is arranged at described annular cylinder (7) bottom, and all the other are smooth cylindrical hole face.The annular friction dish (9) that multi-disc band external splines is housed one section of internal spline, is equipped with annular piston (18) in one section, smooth cylindrical hole face.On the external cylindrical surface of the cylindrical handle of the differential gear (6) of differential mechanism, be processed with external splines, the annular friction dish (8) of multi-disc band internal spline is housed on it, and the described annular friction dish (8) with internal spline is staggered installation of setting with described annular friction dish (9) partition with external splines.
As Fig. 1, described annular piston (18) is pressed on the annular friction dish (9) of outmost a slice band external splines, between described annular cylinder lid (10) and described annular piston (18), form an oil cylinder working-pressure chamber, and described annular cylinder lid (10) is joined an oil-feed cover (11) with the endoporus cunning of described annular piston (18), described oil-feed cover (11) has one and goes out oil ring groove, described in go out oil ring groove and be communicated with described oil cylinder working-pressure chamber.The bottom of described annular cylinder (7) is provided with through hole, and the machine oil in differential casing (3) can free in and out by described through hole the non-pressure district of annular cylinder (7).
As Fig. 1, described oil-feed cover (11) connects one first oil connection (13), a housing inner oil tube (14), one second oil connection (15), a solenoid valve (19) and an oil pump (20) successively, and described solenoid valve (19) is by electrical signal control.Also comprise a transition ring set (12), described transition ring set (12) is positioned between described oil-feed cover (11) and described the first oil connection (13).In this preferred embodiment, the pressure oil coming from described oil pump (20), after oil pipe, solenoid valve, the second oil connection (15), housing inner oil tube (14), the first oil connection (13), transition ring set (12) and oil-feed cover (11), enters described oil cylinder working-pressure chamber.
As Fig. 1, on described differential casing (3), connect power input telescopic shaft (2) and a planetary pinion (4) simultaneously, described planetary pinion (4) connects a half front axle gear (5) and described rear differential gear (6), described half front axle gear (5) connects half front axle (17), semiaxis (16) after described rear differential gear (6) connects.In this preferred embodiment, described power input telescopic shaft (2) is passed to described differential casing (3) the power transmitting from gearbox by spline, described differential casing (3) drives described planetary pinion (4), give described half front axle gear (5) and described rear differential gear (6) power average mark again, described half front axle gear (5) is passed to described half front axle (17) power by spline, thereby drives the propons of vehicle; Described rear differential gear (6) is passed to described rear semiaxis (16) power by spline, thereby drives the back axle of vehicle.When normal vehicle operation, the driving moment that its propons back axle obtains substantially equate, and turn time front-rear axle allowed rational speed discrepancy.
As Fig. 1, when running into slipperiness on roads in Vehicle Driving Cycle, or when cross-country middle part wheel hanging, the driving moment of the ransaxle of tyre slip idle running declines and is close to zero, because of the principle of differential mechanism, tire does not have the driving moment of the ransaxle of skid to be involved yet, and is close to zero thereby decline, and causes vehicle to travel.Now driver can not stopped and be pressed differential lock button, electrical signal makes described solenoid valve (19) switch to conducting and make oil circuit unblank from normally closed, the pressure oil coming from described oil pump (20) is through oil pipe, solenoid valve (19), the second oil connection (15), housing inner oil tube (14), the first oil connection (13), after transition ring set (12) and oil-feed cover (11), enter described oil cylinder working-pressure chamber, and then promote described annular piston (18), it is pressed in forward on the rearmost annular friction dish (9) with external splines, power is after transmitting, the two sides of the annular friction dish (8) with internal spline and annular friction dish (9) with external splines and annular cylinder (7) bottom surface are all compacted and produce frictional force, frictional force between each stacks up becomes total inner friction torque of differential mechanism, this total inner friction torque will pin between described rear differential gear (6) and described differential casing (3), make the wheel not skidding can provide this total inner friction torque corresponding driving force than the wheel skidding more, thereby recover the driveability of vehicle.When Vehicle Driving Cycle is behind normal road surface, driver only need press back differential lock button, disconnecting electrical signal makes described solenoid valve (19) switch to pressure oil circuit to close, the state of release oil circuit unblank, the pressure oil of described oil cylinder working-pressure chamber is through former oil circuit, flow back in the oil sump in differential casing (3) by solenoid valve (19) release oil circuit, impacting force between each of annular piston (18) and the annular friction dish (8) with internal spline and the annular friction dish (9) with external splines sheds, thereby there is no friction, can relatively rotate, differential mechanism also recovers normal function.
Described electrical-control hydraulic multi-disc friction disk clutch differential lock, by said structure, can be realized according to various road surfaces and the actual conditions of travelling and accomplish to control automatically differential mechanism, thereby make vehicle in most suitable state.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. an electrical-control hydraulic multi-disc friction disk clutch differential lock, it is characterized in that, comprise a differential casing (3), one end of described differential casing (3) is provided with an annular cylinder (7), the annular friction dish (9) of multi-disc band external splines is equipped with in the interior one end of described annular cylinder (7), and the other end is equipped with annular piston (18);
One rear differential gear (6), the annular friction dish (8) of multi-disc band internal spline is housed on described rear differential gear (6), and the described annular friction dish (8) with internal spline is crisscross arranged with the described annular friction dish (9) with external splines;
One annular cylinder lid (10), between described annular cylinder lid (10) and described annular piston (18), form an oil cylinder working-pressure chamber, and described annular cylinder lid (10) is joined an oil-feed cover (11) with the endoporus cunning of described annular piston (18), described oil-feed cover (11) has one and goes out oil ring groove, described in go out oil ring groove and be communicated with described oil cylinder working-pressure chamber;
Wherein, described oil-feed cover (11) connects one first oil connection (13), a housing inner oil tube (14), one second oil connection (15), a solenoid valve (19) and an oil pump (20) successively, and described solenoid valve (19) is by electrical signal control.
2. electrical-control hydraulic multi-disc friction disk clutch differential lock as claimed in claim 1, it is characterized in that: also comprise a transition ring set (12), described transition ring set (12) is positioned between described oil-feed cover (11) and described the first oil connection (13).
3. electrical-control hydraulic multi-disc friction disk clutch differential lock as claimed in claim 1, is characterized in that: the bottom of described annular cylinder (7) is provided with through hole.
4. electrical-control hydraulic multi-disc friction disk clutch differential lock as claimed in claim 1, is characterized in that: on described differential casing (3), connect power input telescopic shaft (2) and a planetary pinion (4) simultaneously.
5. electrical-control hydraulic multi-disc friction disk clutch differential lock as claimed in claim 4, it is characterized in that: described planetary pinion (4) connects a half front axle gear (5) and described rear differential gear (6), described half front axle gear (5) connects half front axle (17), semiaxis (16) after described rear differential gear (6) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420015190.XU CN203686052U (en) | 2014-01-10 | 2014-01-10 | Electric control hydraulic type clutch differential lock with multiple pieces of friction discs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420015190.XU CN203686052U (en) | 2014-01-10 | 2014-01-10 | Electric control hydraulic type clutch differential lock with multiple pieces of friction discs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203686052U true CN203686052U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420015190.XU Expired - Fee Related CN203686052U (en) | 2014-01-10 | 2014-01-10 | Electric control hydraulic type clutch differential lock with multiple pieces of friction discs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203686052U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482163A (en) * | 2014-11-28 | 2015-04-01 | 长城汽车股份有限公司 | Locking differential and automobile |
| CN105003619A (en) * | 2015-05-09 | 2015-10-28 | 陈学福 | Hydraulic driving meshing locking direct-connection-type differential mechanism |
| CN105003618A (en) * | 2015-05-09 | 2015-10-28 | 陈学福 | Hydraulic driving indirect friction locking differential mechanism |
| CN108138932A (en) * | 2015-09-24 | 2018-06-08 | 伊顿智能动力有限公司 | electro-hydraulic limited-slip differential system |
-
2014
- 2014-01-10 CN CN201420015190.XU patent/CN203686052U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482163A (en) * | 2014-11-28 | 2015-04-01 | 长城汽车股份有限公司 | Locking differential and automobile |
| CN105003619A (en) * | 2015-05-09 | 2015-10-28 | 陈学福 | Hydraulic driving meshing locking direct-connection-type differential mechanism |
| CN105003618A (en) * | 2015-05-09 | 2015-10-28 | 陈学福 | Hydraulic driving indirect friction locking differential mechanism |
| CN108138932A (en) * | 2015-09-24 | 2018-06-08 | 伊顿智能动力有限公司 | electro-hydraulic limited-slip differential system |
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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: 20140702 Termination date: 20210110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |