CN115284787A - Multi-gear electric drive bridge structure - Google Patents
Multi-gear electric drive bridge structure Download PDFInfo
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- CN115284787A CN115284787A CN202211013403.0A CN202211013403A CN115284787A CN 115284787 A CN115284787 A CN 115284787A CN 202211013403 A CN202211013403 A CN 202211013403A CN 115284787 A CN115284787 A CN 115284787A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/121—Power-transmission from drive shaft to hub
- B60B35/122—Power-transmission from drive shaft to hub using gearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
- B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
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Abstract
The invention provides a multi-gear electric drive axle structure, which has the advantages that the gear shifting power is not interrupted, the driving feeling is improved, and the ramp vehicle sliding risk is avoided; the axial length is compact, and the whole vehicle is simple in arrangement; compared with the half shaft position, the mass distribution of the electric drive axle power assembly is uniform, the mass center is short in the front and back directions of the whole vehicle, and the stress and vibration conditions are greatly improved; the electric drive bridge has the advantages of simple structure, rich gear expansion modes, adaptability to various complex working conditions and low overall energy consumption. A multi-gear electric drive bridge structure is characterized by comprising: the A-side transmission assembly comprises an A-side power input assembly, an A-side middle shaft assembly and an A-side output shaft assembly; the B-side transmission assembly comprises a B-side power input assembly, a B-side middle shaft assembly and a B-side output shaft assembly; the differential assembly comprises a differential, differential driven teeth, a half shaft A and a half shaft B; the differential driven gear, the half shaft A and the half shaft B are fixedly connected with the differential respectively; and an idler pulley.
Description
Technical Field
The invention relates to the technical field of vehicle drive axle structures, in particular to a multi-gear electric drive axle structure.
Background
The existing multi-gear electric drive axle structure of the vehicle has the problems of gear shifting power interruption, poor driving feeling and ramp vehicle sliding risk; partial gear shifting power does not interrupt a multi-gear electric drive bridge, the axial length is too long, and the whole vehicle is difficult to arrange; relative to the position of the half shaft, the mass center of the power assembly of the electrically-driven bridge is longer in the front-rear direction of the whole vehicle, so that the stress and vibration conditions are poor; the structure is complicated, the gear expansion mode is insufficient, and the overall energy consumption of the electric drive bridge is high.
Disclosure of Invention
Aiming at the problems, the invention provides a multi-gear electric drive axle structure, the gear shifting power of the structure is not interrupted, the driving feeling is improved, and the ramp vehicle sliding risk is avoided; the axial length is compact, and the whole vehicle is simple to arrange; compared with the half shaft position, the mass distribution of the power assembly of the electric drive bridge is uniform, the mass center is short in the front-back direction of the whole vehicle, and the stress and vibration conditions are greatly improved; the electric drive bridge has the advantages of simple structure, rich gear expansion modes, adaptability to various complex working conditions and low overall energy consumption.
A multi-gear electric drive bridge structure is characterized by comprising:
the A-side transmission assembly comprises an A-side power input assembly, an A-side middle shaft assembly and an A-side output shaft assembly;
the B-side transmission assembly comprises a B-side power input assembly, a B-side middle shaft assembly and a B-side output shaft assembly;
the differential mechanism assembly comprises a differential mechanism, differential mechanism driven teeth, a half shaft A and a half shaft B; the differential driven gear, the half shaft A and the half shaft B are fixedly connected with the differential respectively;
and an idler wheel;
the side A transmission assembly and the side B transmission assembly are respectively arranged in the two side position area areas of the half shaft A, and the parts corresponding to the side A transmission assembly and the side B transmission assembly are positioned in the axial length area formed by combining the differential mechanism and the half shaft A;
the output end of the A-side transmission assembly is meshed and connected with the differential driven teeth through the A-side differential driving teeth, the output end of the B-side transmission assembly is meshed and connected with the differential driven teeth through the B-side differential driving teeth, the A-side transmission assembly comprises A-side intermediate shaft constant meshing teeth, the B-side transmission shaft assembly comprises coupling gear driving teeth, and the idle wheels are respectively meshed and respectively arranged on the A-side intermediate shaft constant meshing teeth and the coupling gear driving teeth on the two sides of the idle wheels.
It is further characterized in that:
the power input assembly at the side A comprises a driving motor at the side A, an input shaft at the side A and input teeth at the side A, and the output end of the driving motor at the side A is connected with the input teeth at the side A through the input shaft at the side A;
the A side intermediate shaft component comprises a first gear driving tooth, a third gear driving tooth, A side intermediate shaft constant meshing teeth and an A side intermediate shaft; the first-gear driving tooth, the third-gear driving tooth and the A-side intermediate shaft constant meshing tooth are axially and fixedly connected to the A-side intermediate shaft;
the A-side output shaft assembly comprises a first-gear driven tooth, a third-gear shifter, a third-gear driven tooth, an A-side differential driving tooth and an A-side output shaft; the first-gear driven tooth, the first-third-gear shifter, the third-gear driven tooth and the driving tooth of the A-side differential are sequentially sleeved on the A-side output shaft from the axial direction; the first-gear driven gear and the third-gear driven gear are sleeved on the output shaft at the side A in an idle mode; the three-gear shifter is fixedly connected to the output shaft at the side A and arranged between the first-gear driven tooth and the third-gear driven tooth; the driving gear of the differential mechanism at the side A is fixedly connected to the output shaft at the side A;
the A side intermediate shaft and the A side input shaft are arranged in parallel, and the A side output shaft and the A side intermediate shaft are arranged in parallel;
the side A input teeth are meshed with the side A intermediate shaft constant meshing teeth; the first gear driving tooth is meshed and connected with the first gear driven tooth; the three-gear driving tooth is meshed with the three-gear driven tooth;
the first three-gear shifter can realize the connection of the same-gear driven gear and the three-gear driven gear of the output shaft at the A side by shifting left and right;
and the driving gear of the differential mechanism on the side A is meshed and connected with the driven gear of the differential mechanism.
The B-side power input assembly comprises a B-side driving motor, a B-side input shaft and B-side input teeth, and the output end of the B-side driving motor is connected with the B-side input teeth through the B-side input shaft;
the B-side intermediate shaft assembly comprises B-side intermediate shaft constant meshing teeth, two-gear driving teeth, a two-coupling gear shifter, coupling gear driving teeth and a B-side intermediate shaft; the B-side intermediate shaft constant meshing teeth, the secondary driving teeth, the secondary coupling gear shifter and the coupling gear driving teeth are sequentially arranged on the B-side intermediate shaft along the axial direction, and the B-side intermediate shaft constant meshing teeth are fixedly connected to the B-side intermediate shaft; the two-gear driving tooth and the coupling gear driving tooth are sleeved on the B-side intermediate shaft in a hollow manner; the two-coupling gear shifter is fixedly connected to the B-side intermediate shaft and arranged between the two-gear driving tooth and the coupling gear driving tooth;
the B-side output shaft assembly comprises a secondary driven gear, a B-side differential driving gear and a B-side output shaft; the two secondary driven teeth and the driving teeth of the B-side differential are sequentially and fixedly connected to the B-side output shaft along the axial direction;
the B-side intermediate shaft is arranged in parallel with the B-side input shaft and the B-side output shaft;
the side B input teeth are meshed and connected with the side B intermediate shaft constant meshing teeth; the second-gear driving teeth are meshed with the second-gear driven teeth;
the two-coupling gear shifter can realize the connection of the B-side intermediate shaft with the two-gear driving teeth and the coupling gear driving teeth by shifting left and right;
and the driving gear of the differential mechanism at the side B is meshed with the driven gear of the differential mechanism.
The central shaft of the idler wheel is arranged in parallel with the A-side intermediate shaft and the B-side intermediate shaft; the idler gear is axially arranged between the differential driven gear and the third gear driven gear.
It is further characterized in that:
the central shaft of the idler wheel is coaxially arranged with the half shaft A;
the central shaft of the idler wheel is parallel to the half shaft A but arranged in a different shaft way;
the idler wheel is supported on the differential shell through a bearing or supported on the electric drive axle shell through a bearing;
the first-gear and third-gear shifter and the second-gear coupling shifter are specifically of synchronizer or sliding sleeve structures.
After the invention is adopted, the structure is simple, the axial length is compact, and the whole vehicle arrangement is simple; compared with the half shaft position, the mass distribution of the power assembly of the electric drive bridge is uniform, the mass center of the suspension arm is short in the front-back direction of the whole vehicle, and the stress and vibration conditions are greatly improved.
Drawings
FIG. 1 is a schematic representation of the three-dimensional structure of the present invention;
the names corresponding to the sequence numbers in the figure are as follows:
the gear shifting mechanism comprises an A-side driving motor 1, a first-gear driving tooth 2, a third-gear driving tooth 3, an A-side input tooth 4, an A-side input shaft 5, an A-side intermediate shaft constant meshing tooth 6, an A-side intermediate shaft 7, an idler 8, an A-side differential driving tooth 9, an A-side output shaft 10, a differential driven tooth 11, a differential 12, a half shaft B13, a B-side output shaft 14, a B-side differential driving tooth 15, a B-side intermediate shaft 16, a coupling gear driving tooth 17, a second coupling gear shifter 18, a second-gear driving tooth 19, a B-side input tooth 20, a B-side input shaft 21, a B-side driving motor 22, a B-side intermediate shaft constant meshing tooth 23, a second-gear driven tooth 24, a half shaft A25, a third-gear driven tooth 26, a third-gear shifter 27 and a first-gear driven tooth 28.
Detailed Description
A multi-gear electric drive bridge structure, see fig. 1: the transmission mechanism comprises an A-side transmission assembly, a B-side transmission assembly, a differential assembly and an idler wheel;
the A-side transmission assembly comprises an A-side power input assembly, an A-side middle shaft assembly and an A-side output shaft assembly;
the B-side transmission assembly comprises a B-side power input assembly, a B-side middle shaft assembly and a B-side output shaft assembly;
the differential assembly comprises a differential 12, differential driven teeth 11, a half shaft A25 and a half shaft B13; the differential driven gear 11, the half shaft A25 and the half shaft B13 are fixedly connected with the differential 12 respectively;
the A-side transmission assembly and the B-side transmission assembly are respectively arranged in the two side position area areas of the half shaft A25, and the parts corresponding to the A-side transmission assembly and the B-side transmission assembly are positioned in the axial length area formed by the combination of the differential mechanism 12 and the half shaft A25;
the output end of the A-side transmission assembly is meshed and connected with a differential driven gear 11 through an A-side differential driving gear 9, the output end of the B-side transmission assembly is meshed and connected with a differential driven gear 11 through a B-side differential driving gear 15, the A-side transmission assembly comprises an A-side intermediate shaft constant meshing gear 6,B side transmission shaft assembly and a coupling gear driving gear 17, and an idle gear 8 is respectively meshed and respectively arranged on the A-side intermediate shaft constant meshing gear 6 and the coupling gear driving gear 17 on two sides of the A-side transmission assembly.
In specific implementation, see fig. 1:
the A-side power input assembly comprises an A-side driving motor 1, an A-side input shaft 5, an A-side input tooth 4,A-side driving motor 1 and an A-side input tooth 4 which are fixedly connected with the A-side input shaft 5 respectively;
the side A intermediate shaft assembly comprises a first-gear driving tooth 2, a third-gear driving tooth 3, a side A intermediate shaft constant meshing tooth 6 and a side A intermediate shaft 7; the first-gear driving tooth 2, the third-gear driving tooth 3 and the A-side intermediate shaft constant meshing tooth 6 are fixedly connected to the A-side intermediate shaft 7 from left to right in sequence; the A side intermediate shaft 7 and the A side input shaft 5 are arranged in parallel;
the A-side output shaft assembly comprises a first-gear driven tooth 28, a third-gear shifter 27, a third-gear driven tooth 26, an A-side differential driving tooth 9 and an A-side output shaft 10; the first-gear driven tooth 28, the third-gear shifter 27, the third-gear driven tooth 26 and the A-side differential driving tooth 9 are sequentially arranged on the A-side output shaft 10 from left to right; the first-gear driven teeth 28 and the third-gear driven teeth 26 are sleeved on the A-side output shaft 10 in a hollow manner; a three-gear shifter 27 is fixedly connected to the A-side output shaft 10 and is arranged between the first-gear driven tooth 28 and the third-gear driven tooth 26; the driving tooth 9 of the differential mechanism at the side A is fixedly connected on an output shaft 10 at the side A; the A-side output shaft 10 is arranged in parallel with the A-side intermediate shaft 7;
the side A input teeth 4 are meshed with the side A intermediate shaft constant meshing teeth 6; the first gear driving tooth 2 is meshed with the second gear driven tooth 28; the third-gear driving tooth 3 is meshed with the third-gear driven tooth 26; a three-gear shifter 27 can realize the connection of the same-gear driven gear 28 and the three-gear driven gear 26 by shifting left and right; the driving tooth 9 of the differential mechanism at the A side is meshed and connected with the driven tooth 11 of the differential mechanism;
the B-side power input assembly comprises a B-side driving motor 22, a B-side input shaft 21 and B-side input teeth 20, wherein the B-side driving motor 22 and the B-side input teeth 20 are fixedly connected with the B-side input shaft 21 respectively;
the B-side intermediate shaft assembly comprises B-side intermediate shaft constant meshing teeth 23, a secondary driving tooth 19, a secondary coupling gear shifter 18, a coupling gear driving tooth 17 and a B-side intermediate shaft 16; the B-side intermediate shaft constant meshing teeth 23, the secondary driving teeth 19, the secondary coupling gear shifter 18 and the coupling gear driving teeth 17 are sequentially arranged on the B-side intermediate shaft 16 from left to right; the constant meshing teeth 23 of the B-side intermediate shaft are fixedly connected to the B-side intermediate shaft 16; a secondary driving tooth 19 and a coupling gear driving tooth 17 are sleeved on the B-side intermediate shaft 16 in an empty manner; the second coupling gear shifter 18 is fixedly connected to the B-side intermediate shaft 16 and arranged between the second driving gear 19 and the coupling gear driving gear 17; the B-side intermediate shaft 16 is arranged in parallel with the B-side input shaft 21;
the B-side output shaft assembly comprises a secondary driven tooth 24, a B-side differential driving tooth 15 and a B-side output shaft 14; the two-gear driven tooth 24 and the B-side differential driving tooth 15 are fixedly connected to the B-side output shaft 14 from left to right in sequence; the B-side output shaft 14 is arranged in parallel with the B-side intermediate shaft 16;
the B-side input teeth 20 are meshed with the B-side intermediate shaft constant meshing teeth 23; the second-gear driving tooth 19 is meshed with the second-gear driven tooth 24; the two-coupling gear shifter 18 can realize the connection between the driving tooth 19 of the same two gears and the driving tooth 17 of the coupling gear by shifting left and right; the driving tooth 15 of the differential mechanism at the side B is meshed with the driven tooth 11 of the differential mechanism;
an idler 8 disposed in parallel with the a-side intermediate shaft 7 and the B-side intermediate shaft 16; the idler 8 is arranged between the differential driven tooth 11 and the third gear driven tooth 26; the idle gear 8 is meshed with the constant meshing teeth 6 of the intermediate shaft on the A side and meshed with the driving teeth 17 of the coupling gear;
the A side power input assembly, the A side middle shaft assembly and the A side output shaft assembly are arranged on one side relative to the half shaft position; the B-side power input assembly, the B-side middle shaft assembly and the B-side output shaft assembly are arranged on the other side; the structure is simple, the axial length is compact, and the whole vehicle is simple in arrangement; the electric drive axle power assembly is arranged at one half axle relatively, the mass distribution of the electric drive axle power assembly is uniform, the suspension arm of the mass center in the front-back direction of the whole vehicle is short, and the stress and vibration conditions are greatly improved.
The working principle is as follows:
the multi-gear electric drive axle structure consists of two motors, a plurality of gear assemblies and a differential mechanism assembly which are arranged in parallel, the two motors and different gears are used in a transmission combination mode, and multi-gear positions with uninterrupted gear shifting power and different speed ratios can be achieved.
In the first gear, the second coupling gear shifter 18 is kept in the neutral position, and the first third gear shifter 27 is shifted to the left to connect the output shaft 10 on the A side with the driven gear 28 on the same gear; at the moment, the side a driving motor 1 serves as a power source to drive the side a input shaft 5 to rotate, so that the rotating power is transmitted to the side a input teeth 4,A fixedly connected with the side a input shaft 5, further, the power is transmitted to the side a intermediate shaft constant meshing teeth 6 through meshing connection, further, the power is transmitted to the side a intermediate shaft 7 fixedly connected with 3 teeth and arranged in parallel with the side a input shaft 5, the side a intermediate shaft 7 drives the first-gear driving teeth 2 fixedly connected with the side a intermediate shaft 7 to rotate, the first-gear driving teeth 2 drive the first-gear driven teeth 28 to rotate through meshing connection, further, the power is transmitted to the side a output shaft 10 through a three-gear shifter 27, the side a output shaft 10 drives the side a differential driving teeth 9 fixedly connected with the side a differential driving teeth 9 to rotate, further, the differential driven teeth 11 in meshing connection with the side a differential driving teeth 9 to rotate, and finally, the power is transmitted to the outside through a half shaft a25 and a half shaft B13 fixedly connected with the differential 12, so that the transmission of the first-gear flow is completed; in the process, the initial torque of the side A driving motor 1 is amplified through a three-stage gear ratio designed in a first gear and then transmitted to the outside, so that the speed reduction and torque increase are realized;
during the second gear, the first three-gear shifter 27 is kept at the neutral position, the second coupling shifter 18 is shifted to the left, and the B-side intermediate shaft is connected with the second driving tooth 19; at this time, the B-side driving motor 22 is used as a power source to drive the B-side input shaft 21 to rotate, so that the rotating power is transmitted to the B-side input teeth 20 fixedly connected with the B-side input shaft 21, the B-side input teeth 20 further transmit the power to the B-side intermediate shaft constant meshing teeth 23 through meshing connection, so that the power is transmitted to the B-side intermediate shaft 16 arranged in parallel with the B-side input shaft 21, the B-side intermediate shaft 16 drives the secondary coupling gear shifter 18 fixedly connected thereto to rotate, the secondary coupling gear shifter 18 drives the secondary driving tooth 19 to rotate, the secondary driving tooth 19 drives the secondary driven tooth 24 to rotate through meshing connection, so that the B-side output shaft 14 is driven to rotate, the B-side output shaft 14 drives the B-side differential driving tooth 15 fixedly connected thereto to rotate, so as to drive the differential driven tooth 11 in meshing connection with the B-side differential driving tooth 15 to rotate, and finally, the secondary power is transmitted to the outside through the half shaft a25 and the half shaft B13 fixedly connected with the differential 12, so as to complete the transmission of the secondary power flow; in the process, the initial torque of the B-side driving motor 22 is amplified through a three-level gear ratio designed in two stages and then transmitted to the outside, so that the speed reduction and torque increase are realized;
in the third gear, the second coupling gear shifter 18 is kept in the neutral position, and the first third gear shifter 27 is shifted to the right to connect the output shaft 10 on the side A with the driven gear 26 on the third gear; at the moment, the A-side driving motor 1 serves as a power source to drive the A-side input shaft 5 to rotate, further transmit the rotating power to the A-side input teeth 4,A side input teeth 4 fixedly connected with the A-side input shaft 5, further transmit the power to the A-side intermediate shaft constant meshing teeth 6 through meshing connection, further transmit the power to the A-side intermediate shaft 7 fixedly connected with 3 teeth and arranged in parallel with the A-side input shaft 5, the A-side intermediate shaft 7 drives the three-gear driving teeth 3 fixedly connected with the A-side intermediate shaft 7 to rotate, the three-gear driving teeth 3 drive the three-gear driven teeth 26 to rotate through meshing connection, further transmit the power to the A-side output shaft 10 through a three-gear shifter 27, the A-side output shaft 10 drives the A-side differential driving teeth 9 fixedly connected with the A-side output shaft 10 to rotate, further drive the differential driven teeth 11 in meshing connection with the A-side differential driving teeth 9 to rotate, and finally transmit the power to the outside through a half shaft A25 and a half shaft B13 fixedly connected with the differential 12 to complete the transmission of the three-gear power flow; in the process, the initial torque of the A-side driving motor 1 is amplified through the three-gear designed three-level gear ratio and then transmitted to the outside, so that the speed reduction and the torque increase are realized
When the vehicle shifts in succession, two driving motor cooperation selector can realize that the electricity drives the axle and shifts power and not break off, switches to two if keeping off, switches to three fender or three fender and switches to two keep off, two keep off and switch to one when keeping off power and not break off, keep off the fender and switch that power is not interrupted the principle the same, use one keep off to rise two keep off as the example explanation:
when the electric drive axle is in the first gear, the first-third gear shifter 27 is shifted to the left, the A-side output shaft 10 is connected with the same-gear driven gear 28, at the moment, the rotary power of the A-side drive motor 1 is transmitted to the first-gear driven gear 28 through the A-side input shaft 5, the A-side input gear 4, the A-side intermediate shaft constant meshing gear 6 and the first-gear driving gear 2 on the A-side intermediate shaft 7, then transmitted to the outside through the first-third gear shifter 27, the A-side output shaft 10, the A-side differential driving gear 9 and the differential driven gear 11, and finally transmitted to the outside through the differential 12 by the half shaft A25 and the half shaft B13.
When the gear needs to be switched to the second gear, the power transmission state of the first gear is kept unchanged, the second coupling gear shifter 18 is shifted to the left, and the B-side intermediate shaft is connected with the second driving gear 19; at this time, the rotational power of the B-side drive motor 22 is transmitted to the second-gear driving tooth 19 through the B-side input shaft 21, the B-side input tooth 20, and the B-side intermediate shaft constant mesh tooth 23, and then through the second coupling gear shifter 18 on the B-side intermediate shaft 16, and further transmitted to the second-gear driven tooth 24, the B-side output shaft 14, the B-side differential driving tooth 15, and the differential driven tooth 11, and finally transmitted to the outside through the differential 12 by the half shaft a25 and the half shaft B13.
At this time, the first gear power driven by the side a driving motor 1 and the second gear power driven by the side B driving motor 22 are simultaneously output, at this time, the third gear shifter 27 returns to the neutral gear, the first gear power is disconnected, the second gear output power is maintained unchanged, that is, the output power of the half shaft is not interrupted, and the process of switching the first gear to the second gear without power interruption is completed.
In addition, when the vehicle needs to output high power in the first gear or the third gear, the power of the B-side driving motor 22 can be combined with the power of the a-side driving motor 1 through the coupling gear to output at the speed ratio of the first gear or the third gear, and the principle of the first gear coupling is similar to that of the third gear coupling, which is explained by taking the first gear coupling as an example:
when the first gear is coupled, the side A driving motor 1 transmits power by the first gear, and the side B intermediate shaft is connected with the coupling gear driving tooth 17 rightwards by the second coupling gear shifter 18;
at the moment, the rotary power of the B-side driving motor 22 passes through the B-side input shaft 21, the B-side input teeth 20 and the B-side intermediate shaft constant mesh teeth 23, is transmitted to the coupling gear driving teeth 17 through the secondary coupling gear shifter 18 on the B-side intermediate shaft 16, and then is transmitted to the idle gear 8 through meshing connection, and the idle gear 8 transmits the power to the A-side intermediate shaft constant mesh teeth 6 through meshing connection;
at the moment, the power of the B-side driving motor 22 is coupled with the power of the A-side driving motor 1 on the A-side intermediate shaft constant meshing teeth 6; the power gathered together is continuously transmitted to the first-gear driven gear 28 through the first-gear driving gear 2 on the A-side intermediate shaft constant mesh gear 6,A-side intermediate shaft 7, then passes through the first-third gear shifter 27, the A-side output shaft 10, the A-side differential driving gear 9 and the differential driven gear 11, and finally is transmitted to the outside through the differential 12 through the half shaft A25 and the half shaft B13, so that the first-gear coupling power output is realized.
The electric drive bridge has the advantages of simple structure, uninterrupted power during gear switching, rich gear expansion modes, adaptability to various complex working conditions and low overall energy consumption.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A multi-gear electric drive bridge structure is characterized by comprising:
the A-side transmission assembly comprises an A-side power input assembly, an A-side middle shaft assembly and an A-side output shaft assembly;
the B-side transmission assembly comprises a B-side power input assembly, a B-side middle shaft assembly and a B-side output shaft assembly;
the differential assembly comprises a differential, differential driven teeth, a half shaft A and a half shaft B; the differential driven gear, the half shaft A and the half shaft B are fixedly connected with the differential respectively;
and an idler wheel;
the side A transmission assembly and the side B transmission assembly are respectively arranged in the two side position area areas of the half shaft A, and the parts corresponding to the side A transmission assembly and the side B transmission assembly are positioned in the axial length area formed by combining the differential mechanism and the half shaft A;
the output end of the A-side transmission assembly is meshed and connected with the differential driven teeth through the A-side differential driving teeth, the output end of the B-side transmission assembly is meshed and connected with the differential driven teeth through the B-side differential driving teeth, the A-side transmission assembly comprises A-side intermediate shaft constant meshing teeth, the B-side transmission shaft assembly comprises coupling gear driving teeth, and the idle wheels are respectively meshed and respectively arranged on the A-side intermediate shaft constant meshing teeth and the coupling gear driving teeth on the two sides of the idle wheels.
2. A multiple-speed electric drive bridge construction as defined in claim 1, wherein: the power input assembly at the side A comprises a driving motor at the side A, an input shaft at the side A and input teeth at the side A, and the output end of the driving motor at the side A is connected with the input teeth at the side A through the input shaft at the side A;
the A side intermediate shaft component comprises a first gear driving tooth, a third gear driving tooth, A side intermediate shaft constant meshing teeth and an A side intermediate shaft; the first-gear driving teeth, the third-gear driving teeth and the A-side intermediate shaft constant meshing teeth are axially fixedly connected to the A-side intermediate shaft;
the A-side output shaft assembly comprises a first-gear driven tooth, a third-gear shifter, a third-gear driven tooth, an A-side differential driving tooth and an A-side output shaft; the first-gear driven gear, the first-third-gear shifter, the third-gear driven gear and the driving gear of the A-side differential are sequentially sleeved on the A-side output shaft from the axial direction; the first-gear driven gear and the third-gear driven gear are sleeved on the output shaft at the side A in an idle mode; the three-gear shifter is fixedly connected to the output shaft at the side A and arranged between the first-gear driven tooth and the third-gear driven tooth; the driving gear of the differential mechanism at the side A is fixedly connected to the output shaft at the side A;
the side A intermediate shaft is arranged in parallel with the side A input shaft and the side A output shaft is arranged in parallel with the side A intermediate shaft;
the side A input teeth are meshed and connected with the side A intermediate shaft constant meshing teeth; the first gear driving tooth is meshed and connected with the first gear driven tooth; the three-gear driving teeth are meshed with the three-gear driven teeth;
the first three-gear shifter can realize the connection of the same-gear driven gear and the three-gear driven gear of the output shaft at the A side by shifting left and right;
and the driving gear of the differential mechanism on the side A is meshed and connected with the driven gear of the differential mechanism.
3. A multiple-speed electric drive bridge construction as claimed in claim 2, wherein: the B-side power input assembly comprises a B-side driving motor, a B-side input shaft and B-side input teeth, and the output end of the B-side driving motor is connected with the B-side input teeth through the B-side input shaft;
the B side intermediate shaft assembly comprises B side intermediate shaft constant meshing teeth, two-gear driving teeth, a two-coupling gear shifter, coupling gear driving teeth and a B side intermediate shaft; the B-side intermediate shaft constant meshing teeth, the two-gear driving teeth, the two-coupling gear shifter and the coupling gear driving teeth are sequentially arranged on the B-side intermediate shaft along the axial direction, and the B-side intermediate shaft constant meshing teeth are fixedly connected to the B-side intermediate shaft; the two-gear driving tooth and the coupling gear driving tooth are sleeved on the B-side intermediate shaft in a hollow manner; the two-coupling gear shifter is fixedly connected to the B-side intermediate shaft and arranged between the two-gear driving tooth and the coupling gear driving tooth;
the B-side output shaft assembly comprises a secondary driven gear, a B-side differential driving gear and a B-side output shaft; the two secondary driven teeth and the driving teeth of the B-side differential are sequentially and fixedly connected to the B-side output shaft along the axial direction;
the B-side intermediate shaft is arranged in parallel with the B-side input shaft and the B-side output shaft;
the B-side input teeth are meshed with the constant meshing teeth of the B-side intermediate shaft; the two-gear driving teeth are meshed with the two-gear driven teeth;
the two-coupling gear shifter can realize the connection of the B-side intermediate shaft with the two-gear driving teeth and the coupling gear driving teeth by shifting left and right;
and the driving gear of the differential mechanism at the side B is meshed and connected with the driven gear of the differential mechanism.
4. A multiple-speed electric drive bridge construction as claimed in claim 3, wherein: the central shaft of the idler wheel is arranged in parallel with the A-side intermediate shaft and the B-side intermediate shaft; the idler gear is axially disposed between the differential driven tooth and the third gear driven tooth.
5. A multiple-speed electric drive bridge construction as defined in claim 1, wherein: the central shaft of the idler gear is coaxially arranged with the half shaft A.
6. A multiple-speed electric drive bridge construction as defined in claim 1, wherein: the central axis of the idler is parallel to, but not coaxial with, the half axis a.
7. A multiple-speed electric drive bridge construction as defined in claim 1, wherein: the idler is supported on the differential housing by bearings or on the electric drive axle housing by bearings.
8. A multiple-speed electric drive bridge construction as defined in claim 1, wherein: the first-gear and third-gear shifter and the second-gear shifter are of synchronizer or sliding sleeve structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211013403.0A CN115284787A (en) | 2022-08-23 | 2022-08-23 | Multi-gear electric drive bridge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211013403.0A CN115284787A (en) | 2022-08-23 | 2022-08-23 | Multi-gear electric drive bridge structure |
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| Publication Number | Publication Date |
|---|---|
| CN115284787A true CN115284787A (en) | 2022-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211013403.0A Pending CN115284787A (en) | 2022-08-23 | 2022-08-23 | Multi-gear electric drive bridge structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117565651A (en) * | 2024-01-15 | 2024-02-20 | 江苏速豹动力科技有限公司 | Electric drive bridge and electric truck |
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2022
- 2022-08-23 CN CN202211013403.0A patent/CN115284787A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117565651A (en) * | 2024-01-15 | 2024-02-20 | 江苏速豹动力科技有限公司 | Electric drive bridge and electric truck |
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