CN116480751B - Differential lock assembly with disconnection mode and vehicle with differential lock assembly - Google Patents
Differential lock assembly with disconnection mode and vehicle with differential lock assembly Download PDFInfo
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- CN116480751B CN116480751B CN202310737284.1A CN202310737284A CN116480751B CN 116480751 B CN116480751 B CN 116480751B CN 202310737284 A CN202310737284 A CN 202310737284A CN 116480751 B CN116480751 B CN 116480751B
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- 239000011248 coating agent Substances 0.000 claims description 4
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- 150000001875 compounds Chemical group 0.000 claims 1
- 230000010354 integration Effects 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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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
- F16H48/24—Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
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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
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
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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
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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
- F16H48/38—Constructional details
- F16H48/40—Constructional details characterised by features of the rotating cases
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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
- F16H2048/343—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators using a rotary motor
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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 application provides a differential lock assembly with a disconnection mode and a vehicle with the same, wherein the differential lock assembly with the disconnection mode comprises the following components: the side wall of the differential mechanism shell is provided with an avoidance channel; the differential mechanism inner shell is arranged in the differential mechanism outer shell and is in clearance fit with the differential mechanism outer shell; the combined gear ring is penetrated in the differential shell through the avoidance channel; the axle gear assembly is disposed within the differential housing. The application sets the differential inner shell in the differential outer shell, and sets the combined gear ring in the differential outer shell through the avoiding channel, and sets the half-axle gear component in the differential outer shell, and the combined gear ring has locking mode, disconnecting mode and common mode matched with the differential inner shell and the half-axle gear component. The differential lock assembly is arranged in such a way that the integration level of the differential lock assembly is effectively improved, the complexity of the differential lock assembly mechanism is reduced, and the arrangement of the differential lock assembly is more convenient.
Description
Technical Field
The application relates to the technical field of vehicles, in particular to a differential lock assembly with a disconnection mode and a vehicle with the differential lock assembly.
Background
With the gradual maturity of the Chinese automobile market, the market demands of users are diversified, and the market demands of strong off-road vehicles are rapidly increased in recent years. At present, all large main factories are researching pure electric strong off-road vehicle types, and the strong off-road vehicle types are required to be marked with differential locks in order to meet the escaping capability of users under extreme working conditions. In order to eliminate the problem of mileage anxiety as much as possible, the pure electric vehicle needs to increase the efficiency of the transmission system as much as possible, so that the transmission system is matched with the disconnection mechanism. The common mode at present is that differential lock and disconnection structure are arranged respectively, satisfy different functional demands respectively, and the problem that brings is that the mechanism is complicated, and the integrated level is not high, is unfavorable for whole car to arrange.
Disclosure of Invention
The application mainly aims to provide a differential lock assembly with a disconnection mode and a vehicle with the differential lock assembly, so as to solve the problem of low integration level of the differential lock assembly in the prior art.
To achieve the above object, according to one aspect of the present application, there is provided a differential lock assembly with a disconnection mode, comprising: the side wall of the differential mechanism shell is provided with an avoidance channel; the differential mechanism inner shell is arranged in the differential mechanism outer shell and is in clearance fit with the differential mechanism outer shell; the combined gear ring is penetrated in the differential shell through the avoidance channel; the half-shaft gear assembly is arranged in the differential mechanism outer shell, and the combined gear ring is provided with a locking mode, a disconnection mode and a common mode which are matched with the differential mechanism inner shell and the half-shaft gear assembly; when the combined gear ring is in a locking mode, the combined gear ring is engaged with the differential inner shell and the half-shaft gear assembly, when the combined gear ring is in a disconnecting mode, the combined gear ring is in a disconnecting state with the half-shaft gear assembly and the differential inner shell, when the combined gear ring is in a normal mode, the combined gear ring is in an engaged state with the differential inner shell, and the combined gear ring is in a disconnecting state with the half-shaft gear assembly.
Further, one end of the combined gear ring, which is positioned in the differential mechanism shell, is provided with a first external spline and a second internal spline, one end of the combined gear ring, which is positioned outside the differential mechanism shell, is provided with a shaft sleeve, the shaft sleeve is connected with a gear shifting fork, and the second internal spline is positioned between the first external spline and the shaft sleeve.
Further, a first internal spline is provided on one side of the differential inner housing, and the first internal spline is disposed in cooperation with the first external spline.
Further, one of the side gears of the side gear assembly is provided with a second external spline disposed on the same side of the differential inner housing as the first internal spline, the second external spline being cooperatively disposed with the second internal spline.
Further, when the coupling ring gear is in the locking mode, the first external spline is engaged with the first internal spline, and the second internal spline is engaged with the second external spline; when the combined gear ring is in the disconnection mode, the first external spline is separated from the first internal spline, and the second internal spline is separated from the second external spline; when the combined gear ring is in the normal mode, the first external spline is engaged with the first internal spline, and the second internal spline is disengaged from the second external spline.
Further, the differential lock assembly with the disconnect mode includes: the driving part is arranged outside the differential mechanism shell and drives the combined gear ring to move along a preset direction through the shaft sleeve so as to enable the combined gear ring to be switched among a locking mode, a disconnection mode and a common mode.
Further, the driving section includes: the gear shifting motor is arranged outside the differential mechanism shell, a ball screw is arranged at the output end of the gear shifting motor, and drives a gear shifting fork to move so as to perform gear shifting operation, wherein the gear shifting fork is connected with the shaft sleeve in a matched manner; when the gear shifting fork shifts gears, the shaft sleeve is driven to drive the combined gear ring to move along the preset direction.
Further, the differential lock assembly with the disconnect mode further includes: one end of the first driving gear is connected with an external power source; and one end of the first driven gear is meshed with the other end of the first driving gear, and the other end of the first driven gear is fixedly connected with the differential mechanism shell.
Further, the side gear assembly includes: the two second driving gears are oppositely arranged on the star gear shaft and are arranged in the differential inner shell, and the differential inner shell can drive the second driving gears to rotate; the second driven gear is arranged between two second driving gears which are oppositely arranged, the two second driven gears are oppositely arranged, the adjacent second driven gears are meshed with the second driving gears, the second driven gears are connected with the first output shaft, the other second driven gears are connected with the second output shaft, the first output shaft and the first internal spline are positioned on the same side of the differential inner shell, and the second driven gears connected with the first output shaft are provided with second external splines.
Further, the inner ring of the differential housing and the outer ring of the differential inner housing are coated with an antifriction coating.
According to another aspect of the present application, there is provided a vehicle including a differential lock assembly with a disconnect mode, the differential lock assembly with a disconnect mode being the differential lock assembly with a disconnect mode described above.
By applying the technical scheme of the application, the inner differential shell is arranged in the outer differential shell, the combined gear ring penetrates through the avoidance channel and is arranged in the outer differential shell, meanwhile, the half-shaft gear component is arranged in the outer differential shell, the combined gear ring is provided with a locking mode, a disconnection mode and a common mode which are matched with the inner differential shell and the half-shaft gear component, when the combined gear ring is in the locking mode, the combined gear ring is engaged with the inner differential shell and the half-shaft gear component, when the combined gear ring is in the disconnection mode, the combined gear ring is in the disconnection state with the half-shaft gear component and the inner differential shell, when the combined gear ring is in the common mode, the combined gear ring is in the engagement state with the inner differential shell, and the combined gear ring is in the disconnection state with the half-shaft gear component. The differential lock assembly is arranged in such a way that the integration level of the differential lock assembly is effectively improved, the complexity of the differential lock assembly mechanism is reduced, and the arrangement of the differential lock assembly is more convenient.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 shows a schematic structural view of a first embodiment of a differential lock assembly with a disconnect mode in accordance with the present application;
FIG. 2 shows a schematic structural view of a second embodiment of a differential lock assembly with a disconnect mode in accordance with the present application;
fig. 3 shows a schematic structural view of a third embodiment of a differential lock assembly with a disconnect mode according to the present application.
Wherein the above figures include the following reference numerals:
10. a differential housing; 11. a star gear shaft; 12. a second drive gear; 13. a second driven gear; 131. a second external spline; 14. a first output shaft; 16. a second output shaft; 17. a bearing;
20. a differential inner housing; 21. a first internal spline;
30. combining a gear ring; 31. a first external spline; 32. a second internal spline; 33. a shaft sleeve; 34. a shift fork;
40. a first drive gear; 41. a first driven gear;
50. a shift motor; 51. ball screw.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art, that in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and that identical reference numerals are used to designate identical devices, and thus descriptions thereof will be omitted.
Referring to fig. 1-3, a differential lock assembly with a disconnect mode is provided in accordance with an embodiment of the present application.
Specifically, a differential lock assembly with a disconnect mode includes: the differential mechanism comprises a differential mechanism shell 10, wherein an avoidance channel is formed in the side wall of the differential mechanism shell 10; the differential inner shell 20, the differential inner shell 20 is arranged in the differential outer shell 10, and the differential inner shell 20 is in clearance fit with the differential outer shell 10; the combined gear ring 30 is penetrated into the differential case 10 through the avoidance passage by the combined gear ring 30; a side gear assembly disposed within the differential housing 10, the integrated ring gear 30 having a locking mode, an off mode, and a normal mode in cooperation with the differential housing 20 and the side gear assembly; wherein, when the combined gear ring 30 is in the locking mode, the combined gear ring 30 is engaged with the differential inner housing 20 and the side gear assembly, when the combined gear ring 30 is in the disconnection mode, the combined gear ring 30 is in the disconnection state with the side gear assembly and the differential inner housing 20, and when the combined gear ring 30 is in the normal mode, the combined gear ring 30 is in the engagement state with the differential inner housing 20, and the combined gear ring 30 is in the disconnection state with the side gear assembly.
In this embodiment, the inner differential housing 20 is disposed in the outer differential housing 10, the coupling ring gear 30 is disposed in the outer differential housing 10 through the escape passage, and the side gear assembly is disposed in the outer differential housing 10, the coupling ring gear 30 has a locking mode, a disengaged mode and a normal mode, which are engaged with the inner differential housing 20 and the side gear assembly when the coupling ring gear 30 is in the locking mode, the coupling ring gear 30 is disengaged from the side gear assembly when the coupling ring gear 30 is in the disengaged mode, the coupling ring gear 30 is disengaged from the side gear assembly, and the inner differential housing 20, the coupling ring gear 30 is engaged with the inner differential housing 20 when the coupling ring gear 30 is in the normal mode, and the coupling ring gear 30 is disengaged from the side gear assembly. The differential lock assembly is arranged in such a way that the integration level of the differential lock assembly is effectively improved, the complexity of the differential lock assembly mechanism is reduced, and the arrangement of the differential lock assembly is more convenient.
Further, a first external spline 31 and a second internal spline 32 are provided at one end of the coupling gear ring 30 located in the differential housing 10, a shaft sleeve 33 is provided at one end of the coupling gear ring 30 located outside the differential housing 10, the shaft sleeve 33 is connected with a shift fork 34, and the second internal spline 32 is located between the first external spline 31 and the shaft sleeve 33. The arrangement is such that the coupling ring gear 30 can be connected with the differential inner housing 20 through the first external spline 31 and the second internal spline 32, and by selecting appropriate connection modes, the integration level of the differential lock assembly is effectively improved.
Specifically, one side of the differential inner housing 20 is provided with a first internal spline 21, and the first internal spline 21 is disposed in cooperation with a first external spline 31. The arrangement is such that the inner differential housing 20 is connected with the coupling gear ring 30 through the first internal spline 21, so that the inner differential housing 20 drives the coupling gear ring 30 to rotate, and the transmission efficiency of the differential lock assembly is ensured.
Further, one of the side gears of the side gear assembly is provided with a second external spline 131, the second external spline 131 being provided on the same side of the differential inner housing 20 as the first internal spline 21, the second external spline 131 being provided in cooperation with the second internal spline 32. This arrangement allows the combination ring gear 30 to drive one of the side gears of the side gear assembly to rotate at the same speed, effectively improving the drive efficiency of the differential lock assembly.
In another embodiment of the present application, when the coupling ring gear 30 is in the lock mode, the first external spline 31 is engaged with the first internal spline 21, and the second internal spline 32 is engaged with the second external spline 131; when the coupling ring gear 30 is in the off mode, the first external spline 31 is disengaged from the first internal spline 21, and the second internal spline 32 is disengaged from the second external spline 131; when the coupling ring gear 30 is in the normal mode, the first external spline 31 is engaged with the first internal spline 21, and the second internal spline 32 is disengaged from the second external spline 131. In the present embodiment, the differential function of the side gear assembly is satisfied as a common differential in the common mode; the differential locking function is realized in the locking mode, the half-shaft gear components are locked together and rotate at the same speed, so that the extreme road condition escaping requirement is met; under the disconnection mode, the transmission system is disconnected from the wheels, so that the transmission element is disconnected from the wheel end under the working condition of high speed and low torsion, the drag torque loss and the counter electromotive force of the motor are reduced, and the efficiency of the transmission system and the endurance mileage of the whole vehicle are improved. The three-in-one integration of structure and function realizes the advantages of weight reduction, cost reduction, quality improvement, efficiency improvement, convenient arrangement and the like.
Further, the differential lock assembly with the disconnect mode includes: a driving portion provided outside the differential case 10, the driving portion driving the coupling ring gear 30 to move in a preset direction through the sleeve 33 so as to switch the coupling ring gear 30 between the lock mode, the off mode, and the normal mode. The arrangement can be used for realizing the switching among the locking mode, the disconnection mode and the common mode by driving the combined gear ring 30 through the driving part to move along the preset direction according to different working conditions, so that the integration level of the differential lock assembly is effectively improved, and the cost of the differential lock assembly is reduced.
Specifically, the driving section includes: the gear shifting motor 50 is arranged outside the differential housing 10, a ball screw 51 is arranged at the output end of the gear shifting motor 50, and the ball screw 51 drives the gear shifting fork 34 to move so as to perform gear shifting operation, wherein the gear shifting fork 34 is connected with the shaft sleeve 33 in a matched manner; when the shift fork 34 performs a gear shifting operation, the shaft sleeve 33 is driven to move along a preset direction along with the gear ring 30. The arrangement is such that the gear shifting motor 50 controls the ball screw 51 to rotate, the gear shifting fork 34 is driven to move through the ball screw 51 to carry out gear shifting operation, the differential lock assembly is switched among a locking mode, a disconnecting mode and a common mode, the working efficiency of the differential lock assembly is effectively improved, the driving part is not limited to the ball screw pair, the driving part can also be a cylinder assembly for realizing three-position control, and the like, and the specific implementation mode is not limited.
As shown in fig. 1, the differential lock assembly with the disconnected mode further includes: a first driving gear 40, one end of the first driving gear 40 being connected to an external power source; and one end of the first driven gear 41 is meshed with the other end of the first driving gear 40, and the other end of the first driven gear 41 is fixedly connected with the differential case 10. In this embodiment, the first driving gear 40 is engaged with the first driven gear 41, receives power from an external power source, and the first driven gear 41 is fixedly connected to the differential case 10 and rotates at the same speed. The transmission efficiency of the differential lock assembly is effectively ensured.
Further, the differential case 10 includes therein: the pinion shaft 11, the axis of the pinion shaft 11 extends in the radial direction of the differential inner housing 20, and both ends of the pinion shaft 11 are connected to the differential inner housing 20, respectively. In the present embodiment, the differential inner housing 20 and the two second drive gears 12 are connected by the pinion shaft 11 so as to revolve together along the axis of the side gear assembly. The arrangement ensures the transmission efficiency of the differential lock assembly, reduces the area of the differential lock assembly and effectively improves the integration level of the differential lock assembly.
In another embodiment of the present application, a side gear assembly includes: the two second driving gears 12, the two second driving gears 12 are oppositely arranged on the star gear shaft 11, the two second driving gears 12 are arranged in the differential inner shell 20, and the differential inner shell 20 can drive the second driving gears 12 to be rotationally arranged; the second driven gears 13, the second driven gears 13 are arranged between two second driving gears 12 which are oppositely arranged, the two second driven gears 13 are oppositely arranged, the adjacent second driven gears 13 are meshed with the second driving gears 12, the second driven gears 13 are connected with the first output shaft 14, the other second driven gears 13 are connected with the second output shaft 16, the first output shaft 14 and the first internal spline 21 are positioned on the same side of the differential inner shell 20, and the second driven gears 13 connected with the first output shaft 14 are provided with second external splines 131. By the arrangement, whether the combined gear ring 30 is connected with the second driven gear 13 or not is realized according to different working conditions, and the differential lock assembly is effectively ensured to be switched among a locking mode, a disconnection mode and a common mode. In the embodiment, the star gear shaft 11 and the two second driven gears 13 are straight bevel gears and are in constant meshed connection, and power transmission and steering of a power route are realized.
Further, the inner race of the differential housing 10 and the outer race of the differential inner housing 20 are coated with an antifriction coating. In this embodiment, in order to reduce the friction loss of rotation between the differential housing 10 and the differential inner housing 20, the inner ring of the differential housing 10 and the outer ring of the differential inner housing 20 are coated with antifriction coating, and needle bearings may be added between the inner ring of the differential housing 10 and the differential inner housing 20, and the implementation is not limited.
In another embodiment of the present application, the differential case 10 is further provided with a plurality of bearings 17, and the plurality of bearings 17 are disposed at opposite ends of the differential case 10.
In another embodiment of the present application, there is also provided a vehicle including the differential lock assembly with the disconnection mode, the differential lock assembly with the disconnection mode being the differential lock assembly with the disconnection mode of the above embodiment.
In another embodiment of the present application, as shown in FIG. 1, when the differential lock assembly with the disengaged mode is in the normal mode:
the combined gear ring 30 is in the middle position, at this time, the first external spline 31 of the combined gear ring 30 is combined with the first internal spline 21 of the differential inner housing 20, the second internal spline 32 of the combined gear ring 30 is not combined with the second external spline 131 of the second driven gear 13, at this time, the differential outer housing 10 and the differential inner housing 20 are fixedly connected together through the combined gear ring 30 and rotate at the same speed, the differential inner housing 20 drives the second driving gear 12 to revolve through the planetary gear shaft 11 and then drives the two second driven gears 13 to rotate, power is output to the first output shaft 14 and the second output shaft 16, and the first output shaft 14 and the second output shaft 16 can realize the left-right wheel differential function under the condition that the second driven gears 13 rotate.
As shown in fig. 2, when the differential lock assembly with the off mode is in the lock mode:
the coupling gear ring 30 is positioned at the left side, at this time, the first external spline 31 of the coupling gear ring 30 is coupled with the first internal spline 21 of the inner differential housing 20, the second internal spline 32 of the coupling gear ring 30 is coupled with the second external spline 131 of the second driven gear 13, the coupling gear ring 30 connects the outer differential housing 10, the inner differential housing 20 and the two second driven gears 13 together, all parts inside the differential are connected into a whole and rotate at the same speed, and at this time, the first output shaft 14 and the second output shaft 16 have no differential function.
As shown in fig. 3, when the differential lock assembly with the off mode is in the off mode:
the combined gear ring 30 is positioned at the right side, at the moment, the first external spline 31 of the combined gear ring 30 is not combined with the first internal spline 21 of the inner differential shell 20, the second internal spline 32 of the combined gear ring 30 is not combined with the second external spline 131 of the second driven gear 13, the outer differential shell 10 and the inner differential shell 20 are disconnected, the outer differential shell 10 and the inner differential shell 20 independently rotate, at the moment, the input end and the output end of the whole system are completely disconnected, the whole vehicle can enter a disconnection mode under high-speed cruising, the dragging torque of the whole vehicle is reduced, and the efficiency is improved.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition to the foregoing, references in the specification to "one embodiment," "another embodiment," "an embodiment," etc., indicate that the particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application, as generally described. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is intended that such feature, structure, or characteristic be implemented within the scope of the application.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (9)
1. A differential lock assembly with a disconnect mode, comprising:
the differential mechanism comprises a differential mechanism shell (10), wherein an avoidance channel is formed in the side wall of the differential mechanism shell (10);
a differential inner housing (20), the differential inner housing (20) being disposed within the differential outer housing (10), the differential inner housing (20) being in clearance fit with the differential outer housing (10);
the combined gear ring (30) is penetrated into the differential shell (10) through the avoidance channel;
a side gear assembly disposed within the differential housing (10), the compound ring gear (30) having a locked mode, an off mode, and a normal mode in cooperation with the differential inner housing (20) and the side gear assembly;
wherein, when the combined gear ring (30) is in the locking mode, the combined gear ring (30) is engaged with the differential inner housing (20) and the side gear assembly, when the combined gear ring (30) is in the disconnection mode, the combined gear ring (30) is in a disconnection state with the side gear assembly and the differential inner housing (20), when the combined gear ring (30) is in the normal mode, the combined gear ring (30) is in an engagement state with the differential inner housing (20), and the combined gear ring (30) is in a disconnection state with the side gear assembly;
a first external spline (31) and a second internal spline (32) are arranged at one end of the combined gear ring (30) positioned in the differential gear housing (10), a shaft sleeve (33) is arranged at one end of the combined gear ring (30) positioned outside the differential gear housing (10), the shaft sleeve (33) is connected with a gear shifting fork (34), and the second internal spline (32) is positioned between the first external spline (31) and the shaft sleeve (33);
a first internal spline (21) is arranged on one side of the differential inner shell (20), and the first internal spline (21) and the first external spline (31) are arranged in a matched mode;
one of the side gears is provided with a second external spline (131), the second external spline (131) being provided on the same side of the differential inner housing (20) as the first internal spline (21), the second external spline (131) being provided in cooperation with the second internal spline (32).
2. The split mode differential lock assembly as claimed in claim 1, wherein,
-when the coupling ring gear (30) is in the locking mode, the first external spline (31) is engaged with the first internal spline (21) and the second internal spline (32) is engaged with the second external spline (131);
when the combined gear ring (30) is in the disconnection mode, a first external spline (31) is separated from the first internal spline (21), and the second internal spline (32) is separated from the second external spline (131);
when the combined gear ring (30) is in the normal mode, the first external spline (31) is engaged with the first internal spline (21), and the second internal spline (32) is disengaged from the second external spline (131).
3. The differential lock assembly with disconnect mode of claim 1, wherein the differential lock assembly comprises:
the driving part is arranged outside the differential mechanism shell (10), and drives the combined gear ring (30) to move along a preset direction through the shaft sleeve (33) so as to enable the combined gear ring (30) to be switched among the locking mode, the disconnection mode and the normal mode.
4. A differential lock assembly with disconnect mode as defined in claim 3, wherein said drive portion includes:
the gear shifting motor (50) is arranged outside the differential mechanism shell (10), a ball screw (51) is arranged at the output end of the gear shifting motor (50), and the ball screw (51) drives the gear shifting fork (34) to move so as to perform gear shifting operation, wherein the gear shifting fork (34) is connected with the shaft sleeve (33) in a matched mode;
when the gear shifting fork (34) performs gear shifting operation, the shaft sleeve (33) is driven to drive the combined gear ring (30) to move along the preset direction.
5. The differential lock assembly with disconnect mode of claim 1, further comprising:
a first driving gear (40), wherein one end of the first driving gear (40) is connected with an external power source;
and one end of the first driven gear (41) is meshed with the other end of the first driving gear (40), and the other end of the first driven gear (41) is fixedly connected with the differential mechanism shell (10).
6. The differential lock assembly with disconnect mode as defined in claim 2, wherein said differential housing (10) includes:
the axis of the star gear shaft (11) extends along the radial direction of the differential inner shell (20), and two ends of the star gear shaft (11) are respectively connected with the differential inner shell (20).
7. The split differential lock assembly as claimed in claim 6, wherein said side gear assembly comprises:
the two second driving gears (12) are arranged on the star gear shaft (11) in an opposite mode, the two second driving gears (12) are arranged in the differential inner shell (20), and the differential inner shell (20) can drive the second driving gears (12) to be rotatably arranged;
the second driven gears (13), second driven gears (13) set up in two relative settings between second driving gear (12), second driven gears (13) are two, two second driven gears (13) set up relatively, and adjacent second driven gears (13) with set up with meshing between second driving gear (12), second driven gears (13) are connected with first output shaft (14), and another second driven gears (13) are connected with second output shaft (16), first output shaft (14) with first internal spline (21) are located the same side of differential mechanism inner shell (20), with second driven gears (13) that first output shaft (14) are connected are equipped with second external spline (131).
8. The differential lock assembly with disconnection mode according to claim 1, wherein an inner race of the differential housing (10) and an outer race of the differential inner housing (20) are coated with an antifriction coating.
9. A vehicle comprising a split mode differential lock assembly, wherein the split mode differential lock assembly is the split mode differential lock assembly of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310737284.1A CN116480751B (en) | 2023-06-21 | 2023-06-21 | Differential lock assembly with disconnection mode and vehicle with differential lock assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310737284.1A CN116480751B (en) | 2023-06-21 | 2023-06-21 | Differential lock assembly with disconnection mode and vehicle with differential lock assembly |
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| Publication Number | Publication Date |
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| CN116480751A CN116480751A (en) | 2023-07-25 |
| CN116480751B true CN116480751B (en) | 2023-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310737284.1A Active CN116480751B (en) | 2023-06-21 | 2023-06-21 | Differential lock assembly with disconnection mode and vehicle with differential lock assembly |
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| CN (1) | CN116480751B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01114533A (en) * | 1987-10-28 | 1989-05-08 | Mazda Motor Corp | Four-wheel-drive vehicle |
| CN104791448A (en) * | 2015-03-20 | 2015-07-22 | 周献生 | Differential mechanism with differential lock |
| CN204701458U (en) * | 2015-05-29 | 2015-10-14 | 中国第一汽车股份有限公司 | A kind of penetrating bridge main speed reducer assembly of built-in shaft space difference speed lock |
| CN110388438A (en) * | 2018-04-19 | 2019-10-29 | 舍弗勒技术股份两合公司 | Differential locking device for a differential and differential |
| CN112696478A (en) * | 2019-09-27 | 2021-04-23 | 九号智能(常州)科技有限公司 | Vehicle and axle and differential mechanism thereof |
-
2023
- 2023-06-21 CN CN202310737284.1A patent/CN116480751B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01114533A (en) * | 1987-10-28 | 1989-05-08 | Mazda Motor Corp | Four-wheel-drive vehicle |
| CN104791448A (en) * | 2015-03-20 | 2015-07-22 | 周献生 | Differential mechanism with differential lock |
| CN204701458U (en) * | 2015-05-29 | 2015-10-14 | 中国第一汽车股份有限公司 | A kind of penetrating bridge main speed reducer assembly of built-in shaft space difference speed lock |
| CN110388438A (en) * | 2018-04-19 | 2019-10-29 | 舍弗勒技术股份两合公司 | Differential locking device for a differential and differential |
| CN112696478A (en) * | 2019-09-27 | 2021-04-23 | 九号智能(常州)科技有限公司 | Vehicle and axle and differential mechanism thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116480751A (en) | 2023-07-25 |
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