CN217553702U - Five keep off electric drive bridge and vehicle - Google Patents

Abstract

The utility model relates to an electricity drives bridge technical field, especially relates to a five keep off electricity and drive bridge and vehicle. The utility model provides a five-gear electric drive axle, which comprises a pair of output half shafts, a differential mechanism, a first intermediate shaft transmission mechanism, a second intermediate shaft transmission mechanism, a first gear shifting mechanism, a second gear shifting mechanism, a third gear shifting mechanism and a motor; wherein the pair of output half shafts are coaxially arranged, the differential is arranged between the pair of output half shafts, and the power output part of the differential is connected with the output half shafts. The utility model provides a five keep off electric drive bridge and vehicle, it can realize five fender position, and can realize big moment of torsion output through less torque motor, can effectively reduce the cost of electric drive bridge.

Description

Five keep off electricity and drive axle and vehicle

Technical Field

The utility model relates to an electricity drive bridge technical field especially relates to a five keep off electricity drive bridge and vehicle.

Background

An electric axle system, i.e. a motor-driven axle system, comprises a motor arranged on an axle of a vehicle, a gear transmission, a gear shifting device and an output shaft.

With the rapid development of the electric driving of medium and heavy commercial vehicles, the matching electric drive bridge system becomes the mainstream. In the related art, because the wheel side traction force requirement of the heavy commercial vehicle is large, the requirement of the wheel side traction force is met by adopting a motor with large torque in the prior art, and the cost of the motor is high.

Therefore, how to solve the problem of high cost of the electric drive bridge in the prior art becomes an important technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a five keep off electricity and drive bridge and vehicle, it can realize five fender position, and can realize big moment of torsion output through less torque motor, can effectively reduce the cost of electricity driving bridge.

A first aspect of the present invention provides a five-gear electric drive axle, which includes a pair of output half shafts, a differential, a first intermediate shaft transmission mechanism, a second intermediate shaft transmission mechanism, a first gear shift mechanism, a second gear shift mechanism, a third gear shift mechanism, and a motor; wherein the pair of output half shafts are coaxially arranged, the differential is arranged between the pair of output half shafts, and a power output portion of the differential is connected with the output half shafts;

the first countershaft gearing mechanism includes: the first gear, the second gear, the third gear and the fourth gear are arranged on the first intermediate shaft; the second intermediate shaft drive mechanism includes: the second intermediate shaft is provided with a fifth gear, a sixth gear and a seventh gear which are arranged on the second intermediate shaft;

an eighth gear, a ninth gear, a first intermediate shaft, a tenth gear, a second intermediate shaft, an eleventh gear, a twelfth gear, a thirteenth gear and a fourteenth gear are sleeved on the pair of output half shafts, wherein the eighth gear is meshed with the first gear, the ninth gear is meshed with the second gear, the tenth gear is connected with the power input part of the differential and is meshed with the sixth gear, the eleventh gear is meshed with the seventh gear, the twelfth gear is connected with the second intermediate shaft and is meshed with the fifth gear, the thirteenth gear is meshed with the third gear, and the fourteenth gear is meshed with the fourth gear;

the motor is in transmission connection with the first middle rotating shaft;

the first shift mechanism is switchable between a first position in which the first intermediate shaft is coupled to the eighth gear, a second position in which the first intermediate shaft is coupled to the ninth gear, and a third position in which the first intermediate shaft, the eighth gear, and the ninth gear are disengaged from each other;

the second gear shift mechanism is switchable between a fourth position in which the eleventh gear is coupled to the first intermediate shaft and a fifth position in which the eleventh gear is disengaged from the first intermediate shaft;

the third shift mechanism is shiftable between a sixth position in which the thirteenth gear is coupled to the second intermediate shaft, a seventh position in which the fourteenth gear is coupled to the second intermediate shaft, and an eighth position in which the thirteenth gear, the fourteenth gear, and the second intermediate shaft are disengaged from each other.

According to the utility model provides a five keep off electric drive bridge, first jackshaft drive mechanism sets up to a pair of, and the symmetric distribution is in the both sides position of a pair of output semi-axis.

According to the utility model provides a five keep off electric drive bridge, second jackshaft drive mechanism sets up to a pair of, and the symmetric distribution is in the both sides position of a pair of output semi-axis.

According to the utility model provides a five keep off bridge of electrically driving, the motor with the coaxial setting of output semi-axis, first zhong shang does the power output shaft of motor.

According to the utility model provides a five keep off bridge of electrically driving, the motor offset in one side of output semi-axis, and the power output shaft of motor with gear drive is passed through to first transfer shaft and is connected.

According to the utility model provides a five keep off bridge of electrically driving, the motor sets up to a pair of, and the symmetric distribution is in the both sides position of output semi-axis, it is a pair of the motor with first transfer shaft all connects through gear drive.

According to the utility model provides a five keep off electric drive bridge, first jackshaft drive mechanism with second jackshaft drive mechanism sets up respectively the both sides of a pair of output semi-axis.

According to the utility model provides a five keep off bridge of electrically driving, the second jackshaft sets up to the hollow shaft, and the second jackshaft empty sleeve in on the first jackshaft.

According to the utility model provides a five keep off bridge of electricity, a pair of output semi-axis is first output semi-axis and second output semi-axis respectively, first pivot and the empty cover of eleventh gear are in on the first output semi-axis, the eighth gear with the empty cover of ninth gear is in the first pivot, the tenth gear pivot and the empty cover of fourteenth gear are in the second output semi-axis, the empty cover of thirteenth gear is in the second pivot.

A second aspect of the present invention provides a vehicle provided with an axle, the axle is set as any of the above five-gear electric drive axle.

Through the technical scheme provided by the utility model, the electric drive bridge can realize five keep off transmission mode, and then, can realize high-speed and big moment of torsion transmission, and the power transmission route of five keep off transmission mode is as follows respectively:

first gear (first shift mechanism in first position, second shift mechanism in fifth position, third shift mechanism in seventh position): the electric motor → the first intermediate rotating shaft → the first shift mechanism → the eighth gear → the first intermediate shaft → the fourth gear → the fourteenth gear → the third shift mechanism → the second intermediate rotating shaft → the twelfth gear → the fifth gear → the second intermediate shaft → the sixth gear → the tenth gear → the differential → the output half shaft;

second gear (first shift mechanism in first position, second shift mechanism in fifth position, third shift mechanism in sixth position): the electric motor → the first rotating shaft → the first shift mechanism → the eighth gear → the first intermediate shaft → the third gear → the thirteenth gear → the third shift mechanism → the second rotating shaft → the twelfth gear → the fifth gear → the second intermediate shaft → the sixth gear → the tenth gear → the differential → the output half shaft;

third gear (first shift mechanism in second position, second shift mechanism in fifth position, third shift mechanism in seventh position): the motor → the first rotating shaft → the first shift mechanism → the ninth gear → the second gear → the first intermediate shaft → the fourth gear → the fourteenth gear → the third shift mechanism → the second rotating shaft → the twelfth gear → the fifth gear → the second intermediate shaft → the sixth gear → the tenth gear → the differential → the output half shaft;

fourth gear (first shift mechanism in second position, second shift mechanism in fifth position, third shift mechanism in sixth position): the electric motor → the first rotating shaft → the first shift mechanism → the ninth gear → the second gear → the first intermediate shaft → the third gear → the thirteenth gear → the third shift mechanism → the second rotating shaft → the twelfth gear → the fifth gear → the second intermediate shaft → the sixth gear → the tenth gear → the differential → the output half shaft;

fifth gear (first shift mechanism in third position, second shift mechanism in fourth position, third shift mechanism in eighth position): the motor → the first middle rotating shaft → the second gear shift mechanism → the eleventh gear → the seventh gear → the second intermediate shaft → the sixth gear → the tenth gear → the differential → the output half shaft;

the fifth gear provides the shortest mechanical transmission path, has high mechanical efficiency and is suitable for low-load driving in a full speed range. The utility model provides a technical scheme can realize the many gears of the bridge of driving of electricity and switch, can realize the power take off of the big moment of torsion of low-speed to the low moment of torsion of full speed, and then also can realize big moment of torsion output through the less motor of moment of torsion, for adopting big torque motor among the prior art, can effective reduce cost.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a single-motor five-gear electric drive bridge according to a first embodiment of the present invention;

FIG. 2 is a schematic view of a first embodiment of the electric drive bridge with two motors and five gears;

fig. 3 is a schematic view of a single-motor five-gear electric drive bridge according to a second embodiment of the present invention;

fig. 4 is a schematic view of a two-motor five-gear electric drive bridge in a second embodiment of the present invention;

fig. 5 is a schematic view of a single-motor five-gear electric drive bridge according to a third embodiment of the present invention;

fig. 6 is a schematic view of a dual-motor five-gear electric drive bridge in a third embodiment of the present invention;

fig. 7 is a schematic view of a single-motor five-gear electric drive bridge according to a fourth embodiment of the present invention;

fig. 8 is a schematic diagram of a dual-motor five-gear electric drive bridge in a fourth embodiment of the present invention.

Reference numerals are as follows:

10a: an output shaft of the motor MG; 11a: a fifteenth gear; 11b: a sixteenth gear; 11: an eighth gear; 12: a ninth gear; 13: an eleventh gear; 20: a first intermediate shaft; 21: a first gear; 22: a second gear; 23: a third gear; 24: a fourth gear; 30: a second intermediate shaft; 31: a seventh gear; 32: a sixth gear; 33: a fifth gear; 10: a first central rotating shaft; 40: a second central rotating shaft; k1, a first gear shifting mechanism; 52: a differential mechanism; 51: a tenth gear; k2, a second gear shifting mechanism; 42: a twelfth gear; 43: a thirteenth gear; k3, a third gear shifting mechanism; 44: a fourteenth gear; 50: and (4) outputting a half shaft.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings in the present invention will be combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be understood that an electric drive axle is an electric drive device that integrates an electric motor, a gear train, and a gear shift mechanism on an axle. The electric drive axle is different from the power structure of an oil vehicle and a hybrid vehicle in the prior art, the power structure of the electric drive axle is integrated with the axle, so that the electric drive axle has higher transmission efficiency, and the arrangement mode of the electric drive axle has higher integration level, so that the space can be effectively saved, and the arrangement of a vehicle power battery is convenient.

In the prior art, a motor of an electric drive axle and an output shaft of an axle are coaxially arranged, and most of gear transmission systems for transmission between the motor and the output shaft of the axle are concentrated on the same side of an axle shell.

In addition, the electric drive bridge in the prior art is generally only provided with two gears, and the torque output range is narrow. In order to meet the large torque requirement of medium and heavy commercial vehicles, the electric drive bridge in the prior art is provided with a large torque motor, and a planetary gear speed reducing mechanism is usually arranged at the wheel edge, and the output shaft of the electric drive bridge drives wheels through the planetary gear speed reducing mechanism, so that the torque output can be further improved. However, the large torque motor has high cost, and the arrangement of the wheel-side planetary gear speed reducing mechanism increases the complexity of the transmission mechanism, and the planetary gear speed reducing mechanism has complex mechanism, heavy weight and high cost.

A five-gear electric drive axle and a vehicle provided in an embodiment of the present invention will be described with reference to fig. 1 to 8.

The embodiment of the utility model provides an in provide a five keep off electricity drive axle, including a pair of output semi-axis 50, differential mechanism 52, first jackshaft drive mechanism, second jackshaft drive mechanism, first gearshift K1, second gearshift K2, third gearshift K3 and motor MG.

A pair of output half shafts 50, a differential 52, a first countershaft transmission, a second countershaft transmission, a first shift mechanism K1, a second shift mechanism K2, and a third shift mechanism K3 are integrated within the axle housing.

The electric drive bridge that this embodiment provided, it can realize five grades of transmission modes through first jackshaft drive mechanism and second jackshaft drive mechanism's setting, has satisfied from each operating mode demand of the big moment of torsion of slow-speed output to the output of the low moment of torsion of high-speed.

To achieve the five gear drive modes, the first countershaft gearing mechanism includes: a first intermediate shaft 20, and a first gear 21, a second gear 22, a third gear 23, and a fourth gear 24 provided on the first intermediate shaft 20.

The second intermediate shaft transmission mechanism includes: a second intermediate shaft 30, and a fifth gear 33, a sixth gear 32, and a seventh gear 31 provided on the second intermediate shaft 30.

An eighth gear 11, a ninth gear 12, a first intermediate rotating shaft 10, a tenth gear 51, a second intermediate rotating shaft 40, an eleventh gear 13, a twelfth gear 42, a thirteenth gear 43 and a fourteenth gear 44 are sleeved on the pair of output half shafts 50, wherein the eighth gear 11 is meshed with the first gear 21, the ninth gear 12 is meshed with the second gear 22, the tenth gear 51 is connected with a power input part of the differential and meshed with the sixth gear 32, the eleventh gear 13 is meshed with the seventh gear 31, the twelfth gear 42 is connected with the second intermediate rotating shaft 40 and meshed with the fifth gear 33, the thirteenth gear 43 is meshed with the third gear 23, and the fourteenth gear 44 is meshed with the fourth gear 24.

The motor is in transmission connection with the first rotating shaft 10, that is, the motor MG is used for driving the first rotating shaft 10 to rotate, and in some embodiments, the motor may be directly connected with the first rotating shaft 10 or connected with the first rotating shaft through a gear transmission mechanism.

The first shift mechanism K1 is switchable between a first position, in which the first countershaft 10 is coupled to the eighth gear 11, a second position, in which the first countershaft 10 is coupled to the ninth gear 12, and a third position, in which the first countershaft 10, the eighth gear 11, and the ninth gear 12 are disengaged from each other;

the second shift mechanism K2 is switchable between a fourth position in which the eleventh gear 13 is coupled to the first countershaft 10 and a fifth position in which the eleventh gear 13 is disengaged from the first countershaft 10;

the third shift mechanism K3 is switchable between a sixth position in which the thirteenth gear 43 is coupled to the second rotating shaft 40, a seventh position in which the fourteenth gear 44 is coupled to the second rotating shaft 40, and an eighth position in which the thirteenth gear 43, the fourteenth gear 44, and the second rotating shaft 40 are disengaged from each other.

Through the technical scheme that this embodiment provided, the electric drive bridge can realize five grades of transmission modes, and then, can realize high-speed and big torque transmission, and the power transmission route of five grades of transmission modes is as follows respectively:

first gear (first shift mechanism K1 in the first position, second shift mechanism K2 in the fifth position, and third shift mechanism K3 in the seventh position): the motor → the first intermediate shaft 10 → the first shift mechanism K1 → the eighth gear 11 → the first gear 21 → the first intermediate shaft 20 → the fourth gear 24 → the fourteenth gear 44 → the third shift mechanism K3 → the second intermediate shaft 40 → the twelfth gear 42 → the fifth gear 33 → the second intermediate shaft 30 → the sixth gear 32 → the tenth gear 51 → the differential 52 → the output shaft 50;

second gear (first shift mechanism K1 in the first position, second shift mechanism K2 in the fifth position, and third shift mechanism K3 in the sixth position): the motor → the first intermediate shaft 10 → the first shift mechanism K1 → the eighth gear 11 → the first gear 21 → the first intermediate shaft 20 → the third gear 23 → the thirteenth gear 43 → the third shift mechanism K3 → the second intermediate shaft 40 → the twelfth gear 42 → the fifth gear 33 → the second intermediate shaft 30 → the sixth gear 32 → the tenth gear 51 → the differential 52 → the output shaft 50;

third gear (first shift mechanism K1 in the second position, second shift mechanism K2 in the fifth position, and third shift mechanism K3 in the seventh position): the motor → the first rotating shaft 10 → the first shift mechanism K1 → the ninth gear 12 → the second gear 22 → the first intermediate shaft 20 → the fourth gear 24 → the fourteenth gear 44 → the third shift mechanism K3 → the second rotating shaft 40 → the twelfth gear 42 → the fifth gear 33 → the second intermediate shaft 30 → the sixth gear 32 → the tenth gear 51 → the differential 52 → the output half shaft 50;

fourth gear (first shift mechanism in second position, second shift mechanism in fifth position, third shift mechanism in sixth position): the motor → the first rotating shaft 10 → the first shift mechanism K1 → the ninth gear 12 → the second gear 22 → the first intermediate shaft 20 → the third gear 23 → the thirteenth gear 43 → the third shift mechanism K3 → the second rotating shaft 40 → the twelfth gear 42 → the fifth gear 33 → the second intermediate shaft 30 → the sixth gear 32 → the tenth gear 51 → the differential 52 → the output half shaft 50;

fifth gear (first shift mechanism K1 in the third position, second shift mechanism K2 in the fourth position, and third shift mechanism K3 in the eighth position): the motor → the first intermediate shaft 10 → the second shift mechanism K2 → the eleventh gear 13 → the seventh gear 31 → the second intermediate shaft 30 → the sixth gear 32 → the tenth gear 51 → the differential 52 → the output shaft 50;

the fifth gear provides the shortest mechanical transmission path, has high mechanical efficiency and is suitable for low-load driving in a full speed range. The embodiment of the utility model provides a technical scheme can realize the switching of many grades of positions of electrically driving the bridge to realize the power take off of the big moment of torsion of low-speed to full-speed low moment of torsion, and then also can realize big moment of torsion output through the less motor of moment of torsion, for adopting big torque motor among the prior art, can effective reduce cost.

In addition, in some embodiments, the electric drive bridge provided by the embodiment can realize large torque output without adopting a wheel-side planetary gear reducer, effectively reduces the wheel-side quality, simplifies the mechanical structure and reduces the cost.

The electric drive axle that this embodiment provided only needs less gear to only need three gearshift to realize five and keep off the transmission, middle drive gear is less, and transmission efficiency is high.

In some embodiments, as shown in fig. 1 to 6, the first countershaft transmission mechanism and the second countershaft transmission mechanism are respectively distributed at two side portions of the output half shaft 50, that is, the main gear transmission systems are distributed at two sides of the output half shaft 50, so that the weight distribution is uniform, the weight concentration at one side of the output half shaft 50 is avoided, and the electric drive axle can still have a long service life in a vibration use environment.

In another embodiment, the first countershaft gearing of the electric drive axle and the second countershaft gearing of the electric drive axle can also be arranged on the same side of the output half shaft 50, as shown in fig. 7 and 8, while the second countershaft 30 of the second countershaft gearing is arranged as a hollow shaft and the second countershaft 30 is free-running on the first countershaft 20 of the first countershaft gearing. So set up, the five fender electric bridge that this embodiment provided, compact structure can effectively reduce the electric bridge volume, makes things convenient for the arrangement of electric bridge and other mechanisms of vehicle.

In some embodiments, the electric machine is disposed coaxially with the output half shaft 50, i.e., the power output shaft of the electric machine is disposed coaxially with the output half shaft, wherein the first intermediate rotating shaft 10 can serve as the power output shaft of the electric machine. The first intermediate rotating shaft 10 is a hollow shaft and is sleeved on the output half shaft 50 in an empty mode, and the first intermediate rotating shaft 10 and the output half shaft 50 do not interfere with each other.

In a further embodiment, as shown in fig. 2, the motor MG may also be in an offset configuration (the power output shaft of the motor MG is offset from the output half shaft 50), and the liquid cooling system of the motor MG may be separately arranged, so that the liquid cooling system has a simple structure, and the use cost is effectively reduced. When the motor MG is disposed in an offset manner, the output shaft 10a of the motor MG may be provided with a fifteenth gear 11a, the first intermediate rotating shaft 10 is provided with a sixteenth gear 11b, and the fifteenth gear 11a is engaged with the sixteenth gear 11b, so that the transmission connection between the motor MG and the first intermediate rotating shaft 10 is realized through one-step gear transmission.

In order to improve the output torque, the motors can be arranged in a pair and symmetrically distributed at two sides of the output half shaft 50, and the pair of motors is in gear transmission connection with the first middle rotating shaft 10. That is, the fifteenth gear 11a is provided on both the output shafts 10a of the pair of motors MG, and both the fifteenth gears 11a mesh with both side portions of the sixteenth gear 11 b.

By the arrangement, the first intermediate rotating shaft 10 can be driven to rotate by the pair of motors MG at the same time, and the output of torque is effectively improved. In the case where the maximum output torque is equal, the cost of a pair of motors with smaller torque can be significantly reduced relative to the cost of one motor with larger torque. Therefore, the embodiment can effectively improve the output torque of the electric drive bridge at lower cost.

In a further embodiment, as shown in fig. 3-6, the second countershaft gearing mechanism is provided as a pair and is symmetrically disposed on either side of a pair of output half shafts 50. A pair of second jackshaft drive mechanism can effectively improve drive mechanism's load-carrying capacity, is applicable to the commercial car that needs the heavy load demand.

In another embodiment, as shown in fig. 3-6, the first countershaft gearing mechanism may also be provided as a pair and symmetrically disposed on either side of a pair of output half shafts 50. A pair of first jackshaft drive mechanism can effectively improve drive mechanism's load-carrying capacity, also is applicable to the commercial car that needs the heavy load demand equally.

In a further embodiment, the pair of output half shafts 50 are a first output half shaft and a second output half shaft respectively, the first intermediate rotating shaft 10 and the eleventh gear 13 are freely sleeved on the first output half shaft, the eighth gear 11 and the ninth gear 12 are freely sleeved on the first intermediate rotating shaft 10, the tenth gear 51, the second intermediate rotating shaft 40 and the fourteenth gear 44 are freely sleeved on the second output half shaft, and the thirteenth gear 43 is freely sleeved on the second intermediate rotating shaft 40.

By the arrangement, the limited axial space of the output half shaft 50 can be fully and uniformly utilized, and the compactness of the electric drive bridge is effectively improved.

It should be noted that the first and second rotating shafts 40 and 50 have a hollow structure, and can be sleeved on the output half shaft 50 through a bearing, and the portion of the rotating shaft, which is matched with the gear shifting mechanism, is provided with a gear structure so as to be coupled with the sliding sleeve of the gear shifting mechanism.

The embodiment of the utility model provides an in still provide a vehicle, be provided with five fender electricity as in above arbitrary embodiment and drive the axle. So set up, the vehicle that this embodiment provided, it can realize five fender position, and can realize big moment of torsion output through less motor, can effectively reduce the cost of electrically driving the axle, and life can obtain guaranteeing moreover. The derivation process of the beneficial effect is substantially similar to the derivation process of the beneficial effect brought by the five-gear electric drive bridge, and details are not repeated here.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A five-gear electric drive axle is characterized by comprising a pair of output half shafts (50), a differential (52), a first intermediate shaft transmission mechanism, a second intermediate shaft transmission mechanism, a first gear shifting mechanism (K1), a second gear shifting mechanism (K2), a third gear shifting mechanism (K3) and a motor; wherein the pair of output half shafts (50) are coaxially disposed, the differential (52) is disposed between the pair of output half shafts (50), and a power output of the differential (52) is connected with the output half shafts (50);

the first countershaft gearing mechanism includes: a first intermediate shaft (20), and a first gear (21), a second gear (22), a third gear (23), and a fourth gear (24) provided on the first intermediate shaft (20); the second intermediate shaft drive mechanism includes: a second intermediate shaft (30), and a fifth gear (33), a sixth gear (32), and a seventh gear (31) that are provided on the second intermediate shaft (30);

an eighth gear (11), a ninth gear (12), a first intermediate rotating shaft (10), a tenth gear (51), a second intermediate rotating shaft (40), an eleventh gear (13), a twelfth gear (42), a thirteenth gear (43) and a fourteenth gear (44) are sleeved on the pair of output half shafts (50), wherein the eighth gear (11) is meshed with the first gear (21), the ninth gear (12) is meshed with the second gear (22), the tenth gear (51) is connected with a power input part of the differential and is meshed with the sixth gear (32), the eleventh gear (13) is meshed with the seventh gear (31), the twelfth gear (42) is connected with the second intermediate rotating shaft (40) and is meshed with the fifth gear (33), the thirteenth gear (43) is meshed with the third gear (23), and the fourteenth gear (44) is meshed with the fourth gear (24);

the motor is in transmission connection with the first middle rotating shaft (10);

the first shifting mechanism (K1) can be shifted between a first position, in which the first countershaft (10) is coupled to the eighth gear (11), a second position, in which the first countershaft (10) is coupled to the ninth gear (12), and a third position, in which the first countershaft (10), the eighth gear (11), and the ninth gear (12) are disengaged from each other;

the second shifting mechanism (K2) can be shifted between a fourth position, in which the eleventh gear (13) is coupled to the first countershaft (10), and a fifth position, in which the eleventh gear (13) is decoupled from the first countershaft (10);

the third shifting mechanism (K3) can be shifted between a sixth position in which the thirteenth gear (43) is coupled to the second countershaft (40), a seventh position in which the fourteenth gear (44) is coupled to the second countershaft (40), and an eighth position in which the thirteenth gear (43), the fourteenth gear (44), and the second countershaft (40) are disengaged from each other.

2. Five-gear electric drive axle according to claim 1, characterized in that the first countershaft gearing is provided as a pair and symmetrically distributed on either side of the pair of output half shafts (50).

3. Five-gear electric drive axle according to claim 1, characterized in that the second countershaft gearing is provided as a pair and symmetrically distributed on either side of the pair of output half shafts (50).

4. The five-gear electric drive axle according to claim 1, wherein the electric machine is arranged coaxially with the output half shaft (50), and the first intermediate rotating shaft (10) is a power output shaft of the electric machine.

5. Five-gear electric drive axle according to claim 1, characterized in that the electric machine is offset to one side of the output half shaft (50) and that the power take-off shaft of the electric machine is in geared connection with the first countershaft (10).

6. Five-gear electric drive axle according to claim 5, characterized in that the electric motors are arranged in a pair and symmetrically distributed on both sides of the output half shaft (50), and the pair of electric motors is in gear transmission connection with the first intermediate rotating shaft (10).

7. The five-speed electric drive axle according to claim 1, wherein the first countershaft gearing mechanism and the second countershaft gearing mechanism are disposed on either side of the pair of output half shafts (50).

8. Five-gear electric drive bridge according to claim 1, characterized in that the second intermediate shaft (30) is provided as a hollow shaft and the second intermediate shaft (30) is free-running on the first intermediate shaft (20).

9. The five-speed electric drive axle according to claim 1, wherein the pair of output half shafts (50) is a first output half shaft and a second output half shaft, respectively, the first countershaft (10) and the eleventh gear (13) are idly journalled thereon, the eighth gear (11) and the ninth gear (12) are idly journalled on the first countershaft (10), the tenth gear (51), the second countershaft (40) and the fourteenth gear (44) are idly journalled thereon, and the thirteenth gear (43) is idly journalled on the second countershaft (40).

10. A vehicle, characterized in that an axle is provided, which is provided as a five-gear electric drive axle according to any of claims 1-9.

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