CN217002957U - New energy automobile disconnected differential mechanism - Google Patents
New energy automobile disconnected differential mechanism Download PDFInfo
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- CN217002957U CN217002957U CN202123208480.5U CN202123208480U CN217002957U CN 217002957 U CN217002957 U CN 217002957U CN 202123208480 U CN202123208480 U CN 202123208480U CN 217002957 U CN217002957 U CN 217002957U
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Abstract
The utility model discloses a disconnected differential mechanism of a new energy automobile, which comprises a differential mechanism shell and a main reduction gear which are connected, and further comprises a half axle gear sleeve, a connecting sliding sleeve, a pair of half axle gears which are oppositely arranged, an execution disc and an electromagnetic clutch for driving the execution disc to move in an electrified mode. The disconnected differential mechanism of the new energy automobile is compact in structure, small in occupied space and convenient to arrange, can be integrated in a new energy gearbox, and is simple and convenient to control when a four-wheel drive mode is switched to a two-wheel drive mode; through electromagnetic clutch control, the corresponding speed is higher and the energy consumption is lower.
Description
Technical Field
The utility model relates to the technical field of automobile differentials, in particular to a disconnected differential of a new energy automobile.
Background
With the continuous progress of the electric drive technology, the electric automobile will become the main development direction of the new energy automobile in the future. The current mainstream motorcycle type all adopts front and back motor arrangement scheme, and the purpose promotes hundred kilometers acceleration rate ability and dynamic property, and new energy automobile adopts single speed ratio's reduction gear scheme more, and the whole car operating mode under two drive modes is in the vast majority. Under the condition, the motors arranged in the front and the back can have the condition that one power assembly does not work and is pulled back, so that energy loss is caused, the efficiency is reduced, and the endurance mileage of the whole vehicle is greatly influenced.
The scheme that will adopt two grades of gearboxes or increase the clutch in the present industry realizes power interruption and combines, but prior art implements the degree of difficulty greatly, and occupation space is big, and the spatial arrangement is difficult to and the cost is higher relatively, is unfavorable for popularizing.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a new energy automobile disconnecting differential mechanism so as to achieve the purposes of simple and convenient mode conversion, compact structure and convenient arrangement.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
this new energy automobile disconnected differential mechanism, including the differential mechanism casing that links to each other and the main gear that subtracts, still include half axle tooth cover, connection sliding sleeve, a pair of half axle gear, the executive dial of relative setting and be used for the electromagnetic clutch that the circular telegram drive executive dial removed, link to each other and establish in the differential mechanism casing through planetary gear between a pair of half axle gear, electromagnetic clutch and differential mechanism casing are established respectively and are subtracted the gear both sides at the main, and half axle tooth cover and connection sliding sleeve cooperation are established in the main gear that subtracts, and the executive dial is established on connecting the sliding sleeve, but all is equipped with engaged with end tooth on the terminal surface of connection sliding sleeve and adjacent half axle gear.
Further:
the electromagnetic clutch is characterized by further comprising a thrust disc and a return spring for resetting the actuating disc, wherein the thrust disc is arranged between the electromagnetic clutch and the actuating disc, and the return spring is arranged between the actuating disc and the end face of the main reduction gear.
The execution disc is of two half structures matched with each other, a clamping groove is formed in the outer edge of the connecting sliding sleeve, and the two half structures are clamped in the clamping groove.
A differential mechanism pin shaft is arranged in the differential mechanism shell, the differential mechanism pin shaft is located between the pair of half axle gears, and the planetary gear is arranged on the differential mechanism pin shaft.
Wear-resisting gaskets are arranged between the half axle gear sleeve and the end faces of the adjacent half axle gears and between the adjacent half axle gear sleeve and the main reduction gear.
And the electromagnetic clutch, the thrust disc, the execution disc, the reset spring, the half axle gear sleeve and the connecting sliding sleeve are all positioned on the same side of the main reducing gear.
Compared with the prior art, the utility model has the following advantages:
the disconnected differential mechanism of the new energy automobile is reasonable in structural design, compact in structure, small in occupied space and convenient to arrange, can be integrated in a new energy gearbox, and is simple and convenient to control when a four-wheel drive mode is switched to a two-wheel drive mode; through electromagnetic clutch control, the corresponding speed is higher and the energy consumption is lower.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is an exploded view of the differential of the present invention.
FIG. 2 is a schematic cross-sectional view of the differential of the present invention.
Fig. 3 is a schematic view of the structure of the connecting sliding sleeve of the present invention.
FIG. 4 is a schematic view of the side gear of the present invention.
In the figure:
1. the novel differential comprises a bearing, 2, a differential shell, 3, a gasket ring, 4, half shaft gears I, 5, a differential pin shaft, 6, a planetary gear, 7, an end gasket, 8, half shaft gears II, 9, wear-resistant gaskets I, 10, half shaft gear sleeves, 11, wear-resistant gaskets II, 12, a connecting sliding sleeve, 13, a main reducing gear, 14, actuating discs I, 15, actuating discs II, 16, bolts, 17, a reset spring, 18, a thrust disc, 19, an electromagnetic clutch and 20, an electromagnetic clutch retainer ring.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, the new energy automobile disconnecting differential includes a differential case 2, a main reduction gear 13, a side gear sleeve 10, a connecting sliding sleeve 12, a pair of side gears disposed oppositely, an actuating disc, a thrust disc 18, a return spring 17 for returning the actuating disc, and an electromagnetic clutch 19 for driving the actuating disc to move by energization.
The differential mechanism shell is connected with the main reduction gear through a group of bolts 16, the pair of half axle gears are a half axle gear I4 and a half axle gear II 8 respectively, the half axle gear I and the half axle gear II are connected through a planetary gear 6 and are arranged in the differential mechanism shell, the electromagnetic clutch and the differential mechanism shell are arranged on two sides of the main reduction gear respectively, a connecting sliding sleeve 12 is sleeved on a half axle gear sleeve 10 and is arranged in the main reduction gear in a matching mode, an execution disc is arranged on the connecting sliding sleeve, and end teeth capable of being meshed with each other are arranged on the end faces of the connecting sliding sleeve and the adjacent half axle gear.
Furthermore, a thrust disc 18 is arranged between the electromagnetic clutch and the execution disc, the thrust disc pushes the execution disc to move, a return spring 17 is arranged between the execution disc and the end face of the main reduction gear, the execution disc is automatically returned through a composite spring, and the work is stable and reliable.
The execution disc is two half structures matched with each other, namely an execution disc I14 and an execution disc II 15, a clamping groove is formed in the outer edge of the connecting sliding sleeve, and the execution disc I14 and the execution disc II 15 are clamped in the clamping groove in a matched mode, so that the structure is compact, and the installation is simple and convenient.
A differential mechanism pin shaft is arranged in the differential mechanism shell 2, the differential mechanism pin shaft is positioned between a pair of half axle gears, the planetary gear is arranged on the differential mechanism pin shaft 5, the transmission of the two half axle gears is realized through the planetary gear, the axial direction of the differential mechanism pin shaft is vertical to the axial direction of the half axle gears, and the structure is compact.
And a wear-resistant gasket I9 is arranged between one end of the half shaft gear sleeve and the end face of the connected half shaft gear, and a wear-resistant gasket II 11 is arranged between the other end of the half shaft gear sleeve and a shaft shoulder arranged on the main reduction gear.
The normal operating condition of differential mechanism is off state, this moment differential mechanism casing 2 can not take place to rotate with main reducing gear 13, and half axle gear I4 and half axle gear sleeve 10 still can follow whole car direction of motion and rotate, and half axle gear 8 II carries out the rotation of opposite direction by planetary gear 6's drive this moment, through the wear-resisting packing ring that sets up, improves the wearability, and long-term job stabilization is reliable.
Electromagnetic clutch, thrust dish, executive disk, reset spring, half axle gear sleeve and connection sliding sleeve all lie in same one side of main reducing gear, all are equipped with bearing 1 on the tip of main reducing gear and the tip of differential mechanism casing, compact structure.
Be equipped with gasket circle 3 between half shaft gear I and the differential mechanism casing inner wall, be equipped with tip packing ring 7 between the outer terminal surface of planetary gear and the differential mechanism casing corresponding wall, be equipped with electromagnetic clutch retaining ring 20 between electromagnetic clutch and the main gear end upper bearing that subtracts, reliable and stable.
The disconnected differential mechanism of the new energy automobile has compact structural design, small occupied space and convenient arrangement, can be integrated in a new energy gearbox, and is simple and convenient to switch from a four-wheel drive mode to a two-wheel drive mode; through electromagnetic clutch control, the corresponding speed is higher and the energy consumption is lower.
Preferred specific examples are:
the differential case 2 and the main reduction gear 13 are differential mechanisms with two split ends, the main reduction gear 13 is designed as a main reduction gear and a differential case, and the differential case 2 and the main reduction gear 13 are fixedly connected through bolts 16.
The main reduction gear 13 drives the differential case 2 to rotate, so as to drive the half axle gear I4 and the half axle gear II 8 to rotate, the connecting sliding sleeve is combined with the half axle gear II 8 under the pushing of the electromagnetic clutch 19, and the connecting sliding sleeve and the half axle gear II 8 are end face dog tooth meshing structures, as shown in fig. 3 and 4. Transmitting the torque to the half shaft gear sleeve 10; the half shaft gear I and the half shaft gear sleeve drive the whole automobile half shaft to rotate, and torque transmission is achieved.
An electromagnetic clutch is an actuating mechanism controlled by electromagnetism, converts electric energy into electromagnetic energy and then converts the electromagnetic energy into mechanical energy, generates current after given voltage, enables a coil to generate magnetic force, and pushes the actuating mechanism to move axially by the magnetic force. The utility model can be integrated in a new energy gearbox, is convenient to control, only needs the whole vehicle to provide a voltage less than 16V when in combination, has energy loss less than or equal to 10W after steady-state operation, and does not consume energy after disconnection. Under the environment temperature of 20 ℃, the speed is correspondingly fast, the combination time is less than or equal to 120ms, the speed difference is less than 30rpm, and the disconnection time is less than or equal to 50 ms.
According to the utility model, the disconnected differential mechanism of the new energy automobile is arranged inside the reduction gearbox of the new energy automobile, so that the arrangement space is greatly reduced. When the four-wheel drive function is required, the whole vehicle sends out an instruction, the motor adjusts the speed to control the differential speed of the main reduction gear 13 and the wheels within 30rpm, then the electromagnetic clutch 19 is electrified to further push the thrust disc 18 to move axially to drive the execution disc, so that the connecting sliding sleeve 12 and the half axle gear II 8 are combined, and power is transmitted to the wheels through the gearbox. When four-wheel drive is not needed, the electromagnetic clutch 19 is powered off, the differential return spring 17 enables the connecting sliding sleeve 12 and the half axle gear II 8 to be disconnected, and power is disconnected on the connecting sliding sleeve and the half axle. The differential is in an unpowered disconnected state normally, and is in an electrified combined state in a working state, namely when a four-wheel drive function is required.
The above-mentioned features are merely for describing preferred embodiments of the present invention and may be arbitrarily combined to form a plurality of embodiments of the present invention.
The utility model is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the utility model is not limited by the above-mentioned manner, and it is within the scope of the utility model to adopt various insubstantial modifications of the inventive concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (6)
1. The utility model provides a new energy automobile disconnect-type differential mechanism, includes continuous differential mechanism casing and main reduction gear, its characterized in that: still include half axle gear cover, connection sliding sleeve, the relative a pair of half axle gear, the execution dish that sets up and be used for the electromagnetic clutch that the circular telegram drive execution dish removed, link to each other and establish in the differential mechanism casing through planetary gear between a pair of half axle gear, electromagnetic clutch and differential mechanism casing are established respectively in the main gear reduction both sides, and half axle gear cover and connection sliding sleeve cooperation are established in the main gear reduction, and the execution dish is established on connecting the sliding sleeve, but all is equipped with the end tooth that meshes mutually on the terminal surface of connection sliding sleeve and adjacent half axle gear.
2. The new energy vehicle disconnect differential of claim 1, characterized in that: the electromagnetic clutch is characterized by further comprising a thrust disc and a return spring for resetting the execution disc, wherein the thrust disc is arranged between the electromagnetic clutch and the execution disc, and the return spring is arranged between the execution disc and the end face of the main reduction gear.
3. The new energy vehicle disconnect differential of claim 1, characterized in that: the execution disc is of two half structures matched with each other, a clamping groove is formed in the outer edge of the connecting sliding sleeve, and the two half structures are clamped in the clamping groove.
4. The new energy vehicle disconnect differential of claim 1, wherein; a differential pin shaft is arranged in the differential shell, the differential pin shaft is positioned between the pair of half axle gears, and the planetary gear is arranged on the differential pin shaft.
5. The new energy vehicle disconnect differential of claim 1, characterized in that: wear-resisting gaskets are arranged between the half axle gear sleeve and the end faces of the adjacent half axle gears and between the adjacent half axle gear sleeve and the main reduction gear.
6. The new energy vehicle disconnect differential of claim 2, characterized in that: the electromagnetic clutch, the thrust disc, the execution disc, the reset spring, the half axle gear sleeve and the connecting sliding sleeve are all located on the same side of the main reduction gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123208480.5U CN217002957U (en) | 2021-12-20 | 2021-12-20 | New energy automobile disconnected differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123208480.5U CN217002957U (en) | 2021-12-20 | 2021-12-20 | New energy automobile disconnected differential mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217002957U true CN217002957U (en) | 2022-07-19 |
Family
ID=82384082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123208480.5U Active CN217002957U (en) | 2021-12-20 | 2021-12-20 | New energy automobile disconnected differential mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217002957U (en) |
-
2021
- 2021-12-20 CN CN202123208480.5U patent/CN217002957U/en active Active
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